CN108790109B - Blank moving device of blow molding machine - Google Patents
Blank moving device of blow molding machine Download PDFInfo
- Publication number
- CN108790109B CN108790109B CN201810908913.1A CN201810908913A CN108790109B CN 108790109 B CN108790109 B CN 108790109B CN 201810908913 A CN201810908913 A CN 201810908913A CN 108790109 B CN108790109 B CN 108790109B
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- guide rail
- fixed
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- base
- slide bar
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- 238000000071 blow moulding Methods 0.000 title claims abstract description 97
- 230000007246 mechanism Effects 0.000 claims abstract description 212
- 230000001360 synchronised effect Effects 0.000 claims abstract description 78
- 230000009471 action Effects 0.000 claims abstract description 31
- 238000005520 cutting process Methods 0.000 claims abstract description 25
- 238000006073 displacement reaction Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 12
- 230000003028 elevating effect Effects 0.000 claims description 22
- 238000005192 partition Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 description 8
- 238000000465 moulding Methods 0.000 description 7
- 238000007493 shaping process Methods 0.000 description 6
- 238000007664 blowing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010137 moulding (plastic) Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4205—Handling means, e.g. transfer, loading or discharging means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4252—Auxiliary operations prior to the blow-moulding operation not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A blank moving device of a blow molding machine belongs to the technical field of hollow plastic blow molding machinery. Comprises a blow molding machine frame connecting mechanism which is connected with a blow molding machine frame of a blow molding machine; the left-right displacement driving mechanism of the movable frame is arranged on the frame connecting mechanism of the blow molding machine; the moving frame is in sliding fit with the frame connecting mechanism of the blow molding machine in a left-right moving way and is also connected with the left-right displacement driving mechanism of the moving frame; the material blank clamping mechanism is connected with the clamping arm front-rear synchronous opening and closing mechanism in a horizontal cantilever state, the clamping arm front-rear synchronous opening and closing mechanism is connected with the base up-down lifting mechanism, and the up-down lifting mechanism is arranged on the movable frame; and the clamping and taking blank cutting mechanism is arranged on the blank clamping mechanism. Ensuring three-coordinate movement of the blank clamping mechanism so as to meet the feeding requirement of the double-station die; the installation is convenient; embodying continuity of blank clamping and cutting actions.
Description
Technical Field
The invention belongs to the technical field of hollow plastic blow molding machinery, and particularly relates to a blank moving device of a blow molding machine.
Background
The preform moving device of the blow molding machine referred to above may also be referred to as a "preform moving robot of the blow molding machine", which is attached to the blow molding machine or referred to as being associated with the blow molding machine, transfers a preform in a molten state (i.e., a "plastic parison", hereinafter the same) heated by the heating mechanism of the hollow plastic molding machine and molded by the preform molding mechanism, while being sandwiched, to an inflation molding station of the hollow plastic molding machine, that is, to a station where a mold of a structural system of the inflation molding mechanism is located, and is inflation molded by the inflation molding mechanism into a hollow plastic product such as a large-capacity plastic tub, and the like.
Providing the blow molding machine with two sets of molds can significantly improve the efficiency of the blow molding machine and can save equipment investment cost to a certain extent, and the structure is called a double-station blow molding machine in the industry. A typical example of a double-station blow molding machine is "double-station translational center line mold locking blow molding machine mold opening and closing mechanism and mold moving mechanism" recommended by chinese patent grant publication No. CN205915672U, which uses two mold moving mechanisms and two mold opening and closing mechanisms and two molds, so that the present invention can be used for improving the processing efficiency, and is suitable for large-scale processing and production. However, since the two pairs of dies are movable, two mold moving mechanisms and two mold opening and closing mechanisms are necessary to be matched with the two pairs of dies, so that the two pairs of dies are still structurally insufficient to meet the requirements of the industrial expectations for the simplicity, and in the practical application process, the two pairs of dies occupy large space and have high energy consumption (electric energy consumption).
If the two pairs of moulds are designed to be static and are additionally equipped with corresponding preform moving means (two sets) by which the aforesaid preforms are fed to the moulds, the above-evaluated deficiencies of CN205915672U can be substantially eliminated. In the published chinese patent literature, no technical information about the preform moving device of the blow molding machine is lacking, as in CN206446101U recommended "a mechanical hand clamp for blow molding" and CN206374189U provided with "a hollow blow molding machine preform clamping device", and so on. A typical "manipulator capable of holding a molded product of a blow molding machine" is described in patent CN104972641a, but since the patent is proposed for holding a large-capacity plastic drum product molded by a mold, there is no technical teaching for a preform moving device. More typically, the "preform gripping robot for a hollow plastic blow molding machine" disclosed in patent application publication CN105346056B (which was filed by the present inventors) is designed for gripping a preform, and can faithfully realize the advantages of three aspects summarized in the technical effect column of the specification. However, since the CN105346056B is designed for the clamping and releasing of a specific preform, i.e., for a flat plastic blank for a blow molding tray, a mold of a hollow plastic blow molding machine equipped with the structure of this patent is disposed in a static manner, i.e., immovably, below the corresponding preform molding mechanism, and the blow molding machine exhibits a single station. The technical teaching that can be used for planning the blank moving device of the double-station blow molding machine with two pairs of dies does not exist, because the double-station blow molding machine is provided with two pairs of dies which are respectively arranged at two sides (such as the left side and the right side) of the blank forming mechanism in a static mode, the blank clamping mechanism of the blank moving device is required to meet the three-coordinate movement requirements of up-down lifting, front-back opening and closing and left-right displacement, and the technical scheme to be described below is generated under the background.
Disclosure of Invention
The invention aims to provide a blank moving device of a blow molding machine, which is beneficial to ensuring that a blank clamping mechanism can be lifted up and down, can be opened and closed back and forth and can be moved left and right so as to meet the feeding requirement of a double-station die, is beneficial to being conveniently connected with a frame of the blow molding machine so as to embody the convenience of installation in use, and is convenient to automatically cut off a blank clamped by the blank clamping mechanism so as to embody the continuity of action.
The object of the invention is achieved by a preform transfer device for a blow molding machine, comprising a blow molding machine frame connection which is connected to a blow molding machine frame of the blow molding machine in the operating state; the left-right displacement driving mechanism of the movable frame is arranged on the frame connecting mechanism of the blow molding machine; the moving frame is in sliding fit with the blow molding machine frame connecting mechanism in a left-right moving way and is also connected with the left-right displacement driving mechanism of the moving frame; the device comprises a blank clamping mechanism, a clamping arm front-back synchronous opening and closing mechanism and a base up-and-down lifting mechanism for enabling the clamping arm front-back synchronous opening and closing mechanism to lift up and down, wherein the blank clamping mechanism is connected with the clamping arm front-back synchronous opening and closing mechanism in a horizontal cantilever state, the clamping arm front-back synchronous opening and closing mechanism is connected with the base up-and-down lifting mechanism, and the base up-and-down lifting mechanism is arranged on the movable frame; and the clamping and taking blank cutting mechanism is arranged on the blank clamping mechanism.
In a specific embodiment of the present invention, the blow molding machine frame connecting mechanism comprises a front guide rail beam, a rear guide rail beam, a left guide rail beam connecting plate, a right guide rail beam connecting plate, a front guide rail beam guide rail, a rear guide rail beam guide rail, an outer blow molding machine frame connecting seat, an inner blow molding machine frame connecting seat, a drag chain plate frame and a drag chain plate, wherein the front guide rail beam and the rear guide rail beam are kept in front-back parallel along the length direction, the left guide rail beam connecting plate is fixed between the left ends of the front guide rail beam and the rear guide rail beam, the right guide rail beam connecting plate is fixed between the right ends of the front guide rail beam and the rear guide rail beam, the front guide rail beam guide rail is fixed on the side of the front guide rail beam opposite to the rear guide rail beam along the length direction of the front guide rail beam, the rear guide rail beam guide rail is fixed on one side of the rear guide rail beam, which is opposite to the front guide rail beam, along the length direction of the rear guide rail beam, the outer connecting seat of the blow molding machine frame is fixed with the front guide rail beam and the rear guide rail beam at the position corresponding to the upper left ends of the front guide rail beam and the rear guide rail beam, a pair of inner connecting seats of the blow molding machine frame are respectively arranged between the upper middle parts of the front guide rail beam and the rear guide rail beam and the upper right ends of the front guide rail beam, at least one pair of inner connecting seats of the blow molding machine frame are distributed at intervals and are 7-shaped, the upper ends of the drag chain frames are fixed with the upper surfaces of the middle parts of the front guide rail beam and the rear guide rail beam, the lower ends of the drag chain frames are cantilever ends, the lower ends of the drag chain frames extend to the lower parts of the rear guide rail beams, and the drag chain plates are fixed with the lower ends of the drag chain frames; the left-right displacement driving mechanism of the movable frame is arranged between the front guide rail beam and the rear guide rail beam, and the movable frame is simultaneously in sliding fit with the front guide rail beam guide rail and the rear guide rail beam guide rail; the base up-down lifting mechanism and the clamping arm front-back synchronous opening and closing mechanism are arranged at one end of the movable frame far away from the front guide rail beam; the clamping and taking blank cutting mechanism is arranged at the front side of the blank clamping mechanism.
In another specific embodiment of the present invention, the left-right displacement driving mechanism of the moving frame includes a motor, a driving belt wheel, a driven belt wheel, a driving belt and a driving belt partition board, the motor is fixed with the motor seat, the motor seat is fixed with the left side of the left end connecting plate of the guide rail beam, the motor shaft of the motor is rotatably supported on the motor seat and the motor shaft seat, the motor shaft seat is fixed with the left side of the left end connecting plate of the guide rail beam at a position corresponding to the front of the motor seat, the driving belt wheel is fixed on the motor shaft at a position corresponding to the position between the motor seat and the motor shaft seat, the driven belt wheel is fixed on a driven belt wheel shaft, two ends of the driven belt wheel shaft are rotatably supported on driven belt wheel seats fixed on the right side of the right end connecting plate of the guide rail beam, one end of the driving belt is sleeved on the driving belt wheel, the other end of the driving belt partition board is sleeved on the driven belt wheel, the position corresponding to the driving belt cavity of the driving belt is fixed between the opposite sides of the front guide rail beam and the rear guide rail beam, and the driving belt cavity is a partition board positioned above the driving belt cavity and below the partition board by the driving belt partition board; the movable frame comprises a slide block fixing seat supporting plate, a front guide rail slide block fixing seat, a rear guide rail slide block fixing seat, a front guide rail beam guide rail slide block, a rear guide rail beam guide rail slide block and a cantilever beam, wherein the slide block fixing seat supporting plate corresponds to a transmission belt cavity of the transmission belt and is fixedly connected with the transmission belt in the transmission belt cavity through a belt pressing plate positioned in a lower cavity of a partition plate, the front end of the slide block fixing seat supporting plate extends to the front side of the front guide rail beam at a position corresponding to the lower part of the front guide rail beam and is bent downwards to form a cantilever beam fixing seat, the rear end of the slide block fixing seat supporting plate extends to the rear side of the rear guide rail beam at a position corresponding to the lower part of the rear guide rail beam, the front guide rail slide block fixing seat is fixed on one side of the front end of the slide block fixing seat supporting plate facing upwards, the rear guide rail slide block fixing seat is fixed on one side of the rear end of the slide block fixing seat supporting plate facing upwards, the front guide rail beam guide rail slider is fixed on one side of the front guide rail slider fixing seat facing the front guide rail beam and is in sliding fit with the front guide rail beam guide rail, the rear guide rail beam guide rail slider is fixed on one side of the rear guide rail slider fixing seat facing the rear guide rail beam and is in sliding fit with the rear guide rail beam guide rail, one end of the cantilever beam facing the front guide rail beam is fixed with the front side of the cantilever beam fixing seat, one end of the cantilever beam far away from the front guide rail beam is formed into a cantilever beam horizontal cantilever end, the base up-down lifting mechanism and the clamping arm front-back synchronous opening and closing mechanism are arranged on the cantilever beam horizontal cantilever end, and the clamping arm front-back synchronous opening and closing mechanism, the material blank clamping mechanism and the material blank cutting mechanism are located on the lower part of the base up-down lifting mechanism.
In another specific embodiment of the present invention, the motor is a servo motor with a forward and reverse rotation function, the driving belt wheel and the driven belt wheel are synchronous pulleys, and the driving belt is a synchronous belt.
In still another specific embodiment of the present invention, a front rail beam rail slider left stopper is fixed at a position corresponding to the left end of the front rail beam rail and a front rail beam rail slider right stopper is fixed at a position corresponding to the right end of the front rail beam rail; a left limit block of the rear guide rail beam guide rail slide block is fixed at a position corresponding to the left end of the rear guide rail beam guide rail, and a right limit block of the rear guide rail beam guide rail slide block is fixed at a position corresponding to the right end of the rear guide rail beam guide rail.
In still another specific embodiment of the present invention, the base up-and-down lifting mechanism includes a base, a base lifting frame, a base lifting rear rail, a base lifting front rail, a slider fixing base rear stopper, a slider fixing base front stopper, a fixing base rear slider, a fixing base front slider, and a base lifting cylinder, the base corresponds to the bottom of the cantilever beam horizontal cantilever end of the cantilever beam and the right end of the base extends to the right side of the cantilever beam horizontal cantilever end, the base lifting rear rail and the base lifting front rail are fixed on the left side of the cantilever beam horizontal cantilever end in a state longitudinally parallel to each other and the base lifting front rail is located on the front side of the base lifting rear rail, the lower end of the base lifting frame is fixed with the side of the left end of the base facing upward, and the upper end of the base lifting frame is fixed with a slider fixing base, a slider fixing seat rear limit block is fixed with the bottom surface of the cantilever beam horizontal cantilever end at a position corresponding to the lower part of the base lifting rear guide rail, a slider fixing seat front limit block is fixed with the bottom surface of the cantilever beam horizontal cantilever end at a position corresponding to the lower part of the base lifting front guide rail, a fixing seat rear slider is fixed on the right side of the rear end of the slider fixing seat and is in sliding fit with the base lifting rear guide rail, a fixing seat front slider is fixed on the right side of the front end of the slider fixing seat and is in sliding fit with the base lifting front guide rail, a base lifting action cylinder is fixed on the right side of the cantilever beam horizontal cantilever end, a base lifting action cylinder column of the base lifting action cylinder faces downwards and is fixed with one side of the right end of the base facing upwards, a cylinder body of the base lifting action cylinder is in sliding fit with a pair of guide rods, the guide rods correspond to two sides of the base lifting action cylinder column and are fixed with one side of the right end of the base facing upwards, the front-back synchronous opening and closing mechanism of the clamping arm, the material blank clamping mechanism and the material blank clamping and cutting mechanism are connected with the base at a position corresponding to the lower part of the base.
In a further specific embodiment of the present invention, the front-rear synchronous opening and closing mechanism for the clamp arm comprises a supporting base plate, a synchronous gear box, a left rack, a right rack, a left guide slide bar, a right guide slide bar, a rear clamp arm fixing plate, a front clamp arm fixing plate and a clamp arm opening and closing driving action cylinder, wherein the supporting base plate corresponds to the lower part of the base, a left guide slide bar fixing seat is fixed on one side of the supporting base plate, which is upwards directed, a right guide slide bar fixing seat is fixed on one side of the right end and at a position corresponding to the left guide slide bar fixing seat, the left guide slide bar fixing seat is fixed with the left end of the base, the right guide slide bar fixing seat is fixed with the right end of the base, the synchronous gear box is fixed on the supporting base plate at a position corresponding to the right side of the left guide slide bar fixing seat, a synchronous gear is rotationally arranged in the synchronous gear box, and the rear end of the left rack is fixedly connected with the rear clamp arm fixing plate, the middle part of the left rack is meshed with the left side of the synchronous gear in the synchronous gear box, the front end of the left rack extends to the front side of the synchronous gear box and corresponds to a left rack abdication hole formed on the front clamping arm fixing plate, the front end of the right rack is fixedly connected with the front clamping arm fixing plate, the middle part of the right rack is meshed with the right side of the synchronous gear in the synchronous gear box, the rear end of the right rack extends to the rear side of the synchronous gear box and corresponds to a right rack abdication hole formed on the rear clamping arm fixing plate, the left guide slide bar corresponds to the left side of the synchronous gear box, the rear end of the left guide slide bar is in sliding fit with the left guide bar rear guide sleeve, the middle part is inserted on the left guide slide bar fixing seat and is fixed with the left guide bar fixing seat, the front end of the left guide bar front guide sleeve is in sliding fit with the left guide bar rear guide sleeve and is fixed with the left end rear side of the rear clamping arm fixing plate, the left guide rod front guide sleeve is fixed with the left end front side of the front clamping arm fixing plate, the right guide rod corresponds to the right side of the clamping arm opening and closing driving action cylinder, the rear end of the right guide rod is in sliding fit with the right guide rod rear guide sleeve, the middle part of the right guide rod is inserted on the right guide rod fixing seat and is fixed with the right guide rod fixing seat, the front end of the right guide rod is in sliding fit with the right guide rod front guide sleeve, the right guide rod rear guide sleeve is fixed with the right end rear side of the rear clamping arm fixing plate, the right end of the rear clamping arm fixing plate is in sliding fit with the rear end of the left guide rod through the left guide rod rear guide sleeve, the right end of the rear clamping arm fixing plate is in sliding fit with the rear end of the right guide rod through the right guide rod rear guide sleeve, an action cylinder yielding cavity is formed in the middle of the rear clamping arm fixing plate and at the position corresponding to the clamping arm opening and closing driving action cylinder, the left end of the front clamping arm fixing plate is in sliding fit with the front end of the left guide slide rod through the front guide sleeve of the left guide slide rod, the right end of the front clamping arm fixing plate is in sliding fit with the front end of the right guide slide rod through the front guide sleeve of the right guide slide rod, the front end of the clamping arm opening and closing driving action cylinder is fixed with a clamping arm opening and closing driving action cylinder seat, the rear end of the clamping arm opening and closing driving action cylinder extends to the rear side of the rear clamping arm fixing plate at a position corresponding to the action cylinder abdicating cavity and is formed into a horizontal cantilever end, a clamping arm opening and closing driving action cylinder column of the clamping arm opening and closing driving action cylinder faces forwards and is connected with the front clamping arm fixing plate, the bottom of the clamping arm opening and closing driving action cylinder seat is fixed with the supporting bottom plate, the top of the clamping arm opening and closing driving action cylinder seat is fixedly connected with the middle part of the base, and the material blank clamping mechanism is connected with the blank taking and cutting mechanism in the front part, the right ends of the rear clamping arm fixing plates are opposite to each other.
In a further specific embodiment of the present invention, a pair of left guide slide bar fixing lugs, the positions of which are corresponding to each other, extend to the right side of the left guide slide bar fixing seat, a left guide slide bar insertion hole is formed in each of the pair of left guide slide bar fixing lugs, a left guide slide bar locking screw is also arranged in each of the pair of left guide slide bar fixing lugs, and the middle part of the left guide slide bar is inserted into the left guide slide bar insertion hole and locked by the left guide slide bar locking screw; a pair of right guide slide bar fixing lugs which are positioned in front of and behind each other are extended on the left side of the right guide slide bar fixing seat, a right guide slide bar inserting hole is respectively formed in the pair of right guide slide bar fixing lugs, a right guide slide bar locking screw is respectively arranged on the pair of right guide slide bar fixing lugs, and the middle part of the right guide slide bar is inserted into the right guide slide bar inserting hole and locked by the right guide slide bar locking screw; the clamping arm opening and closing driving action cylinder is an air cylinder or an oil cylinder.
In still another specific embodiment of the present invention, the blank gripping mechanism includes a front arm, a rear arm, a front arm rack and a rear arm rack, the left end of the front arm is fixed to the right end of the front arm fixing plate toward one side of the rear arm fixing plate, the right end of the front arm is configured as a horizontal cantilever end, the left end of the rear arm is fixed to the right end of the rear arm fixing plate toward one side of the front arm fixing plate, the right end of the rear arm is configured as a horizontal cantilever end, the front arm rack is fixed to the right lower portion of the front arm, the rear arm rack is fixed to the right lower portion of the rear arm and rack teeth on the front and rear arm racks face each other, and the blank cutting mechanism is disposed on the front side of the front arm.
In still another specific embodiment of the present invention, the blank cutting mechanism includes a linear cylinder, a sliding blade holder and a blank cutting knife, the linear cylinder is horizontally disposed and fixed to the front side of the right end of the front clamping arm, the sliding blade holder is connected to the linear cylinder, the front end of the blank cutting knife is fixed to the sliding blade holder, and the rear end of the blank cutting knife protrudes out of the front clamping arm at a position corresponding to the upper side of the front clamping arm toward one side of the rear clamping arm.
According to one of the technical effects provided by the technical scheme, the clamping arm front-rear synchronous opening and closing mechanism is driven by the base up-down lifting mechanism, the clamping arm front-rear synchronous opening and closing mechanism and the material blank clamping mechanism are lifted up and down, the material blank clamping mechanism is opened and closed back and forth by the clamping arm front-rear synchronous opening and closing mechanism, the moving frame is driven by the moving frame left-right displacement driving mechanism to move left and right, and the moving frame and the base up-down lifting mechanism carry the clamping arm front-rear synchronous opening and closing mechanism to move left and right along with the moving frame, so that the three-coordinate movement of the material blank clamping mechanism can be ensured, and the feeding requirement of a double-station die can be met; secondly, the provided frame connecting mechanism of the blow molding machine can be conveniently connected with the frame of the blow molding machine, so that the convenience in installation during use is reflected; thirdly, the clamping and taking blank cutting mechanism is arranged, so that the blank clamped by the blank clamping mechanism can be cut off, and the continuity of blank clamping and cutting actions is reflected.
Drawings
Fig. 1 is a structural diagram of an embodiment of the present invention.
Fig. 2 is a detailed construction diagram of the arm lock front-rear synchronous opening and closing mechanism shown in fig. 1.
Fig. 3 is a schematic view of the connection of the blow molding machine frame connection mechanism shown in fig. 1 to a blow molding machine frame.
Detailed Description
In order to make the technical spirit and advantages of the present invention more clearly understood, the applicant will now make a detailed description by way of example, but the description of the examples is not intended to limit the scope of the invention, and any equivalent transformation made merely in form, not essentially, according to the inventive concept should be regarded as the scope of the technical solution of the present invention.
In the following description, all concepts related to the directions or azimuths of up, down, left, right, front and rear are directed to the positional states of fig. 1 and 2, and thus should not be construed as being particularly limited to the technical solutions provided by the present invention.
Referring to fig. 1, a blow molding machine frame connection 1 is shown, which blow molding machine frame connection 1 is connected in the use state to a blow molding machine frame 2 of a blow molding machine; a moving frame left-right displacement driving mechanism 3 is shown, and the moving frame left-right displacement driving mechanism 3 is arranged on the frame connecting mechanism 1 of the blow molding machine; a movable frame 4 is shown, which movable frame 4 is slidingly engaged with the aforementioned blow molding machine frame connecting mechanism 1 and is also connected with the aforementioned movable frame left-right displacement driving mechanism 3; showing a blank gripping mechanism 5, showing a gripper arm front-rear synchronous opening and closing mechanism 6 and a base up-down lifting mechanism 7 for lifting the gripper arm front-rear synchronous opening and closing mechanism 6 up and down, the blank gripping mechanism 5 being connected with the gripper arm front-rear synchronous opening and closing mechanism 6 in a horizontal cantilever state, the gripper arm front-rear synchronous opening and closing mechanism 6 being connected with the base up-down lifting mechanism 7, the base up-down lifting mechanism 7 being provided on the moving frame 4; a pinch-off blank cutoff mechanism 8 is shown, the pinch-off blank cutoff mechanism 8 being disposed on the blank pinch-off mechanism 5 described above.
With continued reference to fig. 1, the aforementioned blow molding machine frame connecting mechanism 1 includes a front rail beam 11a, a rear rail beam 11b, a rail beam left end connecting plate 11c, a rail beam right end connecting plate 11d, a front rail beam rail 12, a rear rail beam rail 13, a blow molding machine frame outer connecting seat 14, a blow molding machine frame inner connecting seat 15, a drag chain plate rack 16 and a drag chain plate 17, the front rail beam 11a and the rear rail beam 11b being kept longitudinally parallel to each other, the rail beam left end connecting plate 11c being fixed between the left ends of the front and rear rail beams 11a, 11b, the rail beam right end connecting plate 11d being fixed between the right ends of the front and rear rail beams 11a, 11b, the front rail beam rail 12 being disposed along the length direction of the front rail beam 11a and being fixed to the side of the front rail beam 11a facing away from the rear rail beam 11b by a front rail beam rail fixing screw 121, the rear rail beam rail 13 is disposed along the longitudinal direction of the rear rail beam 11b and is fixed to the side of the rear rail beam 11b facing away from the front rail beam 11a by rear rail beam rail fixing screws, the blow molding machine frame outer connecting base 14 is fixed to the upper surfaces of the front rail beam 11a and the rear rail beam 11b at a position corresponding to the upper left ends of the front rail beam 11a and the rear rail beam 11b by outer connecting base fixing screws 141 at the same time, the blow molding machine frame inner connecting base 15 is provided with a pair each between the upper middle portions corresponding to the front and rear rail beams 11a, 11b and the upper right ends, and is fixed to the upper surfaces of the front rail beam 11a and the rear rail beam 11b at the same time by inner connecting base fixing screws 151, the upper ends of the drag chain frame 16 are fixed to the upper surfaces of the middle portions of the front rail beam 11a and the rear rail beam 11b by drag chain frame fixing screws 161 at least a pair (in this embodiment) and take a 7 shape, the lower end is configured as a cantilever end and extends below the rear side of the rear rail beam 11b, and the drag link plate 17 has an L-shaped cross-sectional shape and is fixed to the lower end of the drag link plate bracket 16, and the drag link plate 17 is used for placing air pipes, a track for electric circuits, and the like.
As shown in fig. 1, the movable frame left-right displacement driving mechanism 3 is provided between the front rail 11a and the rear rail 11b, and the movable frame 4 is slidably engaged with the front rail 12 and the rear rail 13; the base up-down lifting mechanism 7 is arranged at one end of the movable frame 4 far away from the front guide rail beam 11a together with the clamping arm front-back synchronous opening and closing mechanism 6; the pinch-off blank cutting mechanism 8 is provided on the front side of the blank pinch-off mechanism 5.
Also shown in fig. 1 are an outer link seat reinforcing plate 18a and an inner link seat reinforcing plate 18b, the outer link seat reinforcing plate 18a reinforces an outer link seat flange 142 of the outer link seat 14 of the blow molding machine frame, the outer link seat flange 142 is fixed with the outer link seat reinforcing plate 18a by an outer link seat flange screw 1421, and the bottom of the outer link seat reinforcing plate 18a is preferably supported on the upper surfaces of the front and rear rail beams 11a, 11 b; the inner joint flange 152 of the inner joint 15 of the blow molding machine frame is reinforced by the inner joint reinforcing plate 18b, the inner joint flange 152 is fixed with the inner joint reinforcing plate 18b by the inner joint flange screw 1521, and the bottom of the inner joint reinforcing plate 18b is preferably supported on the upper surfaces of the front and rear rail beams 11a, 11 b.
Continuing to see fig. 1, the aforementioned moving frame left-right displacement driving mechanism 3 includes a motor 31, a belt driving wheel 32, a belt driven wheel 33, a belt 34 and a belt partition 35, the motor 31 is fixed to the motor base 312 by a motor fixing screw 313, the motor base 312 is fixed to the left side of the aforementioned guide beam left end connecting plate 11c by a motor base fixing screw, the motor shaft 311 of the motor 31 is rotatably supported on the motor base 312 and the motor shaft base 3111, the motor shaft base 3111 is fixed to the left side of the guide beam left end connecting plate 11c by a motor shaft base fixing screw at a position corresponding to the front of the motor base 312, the belt driving wheel 32 is fixed to the motor shaft 311 at a position corresponding to between the motor base 312 and the motor shaft base 3111, the belt driven wheel 33 is fixed to the belt driven wheel 331, both ends of the belt driven wheel 331 are rotatably supported on the belt driven wheel shaft base 3311 by a belt driven wheel shaft base fixing screw fixed to the right side of the aforementioned guide beam right end connecting plate 11d, one end of the belt 34 is sleeved on the belt 32, the other end of the belt 34 is sleeved on the belt 35 a partition 35 a position corresponding to the belt cavity 35 below the belt driven wheel 35, and above the belt driven wheel shaft 35.
The aforementioned moving frame 4 comprises a slide fixing base support plate 41, a front rail slide fixing base 42, a rear rail slide fixing base 43, a front rail slide 44, a rear rail slide 45 and a cantilever beam 46, the slide fixing base support plate 41 corresponds to the belt chamber of the aforementioned belt 34 and is fixedly connected with the belt 34 in the belt chamber by a press belt plate 411 located in a partition lower chamber 352, specifically, the lower part of the belt 34 is clamped between the press belt 411 and the middle part of the slide fixing support plate 41 by the press belt plate 411 by a press belt screw 4111, the front end of the slide fixing base support plate 41 is extended to the front side of the front rail 11a at a position corresponding to the lower part of the aforementioned front rail 11a and is bent downward to form a cantilever beam fixing base 412, the rear end of the slide fixing base support plate 41 is extended to the rear side of the rear rail 11b at a position corresponding to the lower part of the aforementioned rear rail 11b, the front end of the slide fixing base support plate 421 is fixed to the front rail guide plate 41 by a press belt screw 4111, the rear rail slide guide 43 is fixed to the front rail guide plate 45 a by the aforementioned rear rail fixing base screw 45 and is engaged with the front rail guide 46 at one side of the front rail guide plate 11a, the front end of the front rail guide is fixed to the front rail guide 45 is slid toward the front rail guide plate 11a, the cantilever fixing plate 462 is fixed to the front side of the cantilever fixing base 412 by a cantilever fixing plate screw 4621, and an end of the cantilever 46 remote from the front rail 11a is formed as a cantilever horizontal cantilever end 461.
As shown in fig. 1, the base up-and-down lifting mechanism 7 and the clamping arm front-and-rear synchronous opening and closing mechanism 6 are disposed at the cantilever horizontal cantilever end 461, wherein the clamping arm front-and-rear synchronous opening and closing mechanism 6 and the blank clamping mechanism 5 and the blank clamping and taking cutting mechanism 8 are disposed at the lower part of the base up-and-down lifting mechanism 7.
In the present embodiment, the motor 31 is a servo motor having a forward and reverse rotation function, the belt driving pulley 32 and the belt driven pulley 33 are timing pulleys, and the belt 34 is a timing belt.
When the motor 31 is operated, the motor 31 drives the driving belt wheel 32, the driving belt wheel 32 drives the driving belt 34 sleeved between the driving belt wheel 32 and the driven belt wheel 33, the lower part of the driving belt 34 is clamped between the belt plate 411 and the sliding block fixing seat supporting plate 41, the driving belt 34 drives the sliding block fixing seat supporting plate 41, the front guide rail sliding block fixing seat 42 and the rear guide rail sliding block fixing seat 43 are fixed on the sliding block fixing seat supporting plate 41, the front guide rail sliding block 44 which is in sliding fit with the front guide rail beam guide rail 12 and the rear guide rail sliding block 45 which is in sliding fit with the rear guide rail beam guide rail 13 are fixed on the sliding block fixing seat 42, and therefore, when the driving belt 34 drives the sliding block fixing seat supporting plate 41, the sliding block fixing seat supporting plate 41 can slide along the front guide rail beam guide rail 12 and the rear guide rail beam guide rail 13, and the cantilever beam 46 is fixed with the cantilever beam fixing seat 412 of the sliding block fixing seat supporting plate 41, and the upper and lower base lifting mechanism 7 arranged on the cantilever beam 46, the front and rear synchronous opening and closing mechanism 6 of the clamping arm which is connected with the upper and lower base lifting mechanism 7, and the front synchronous opening and closing mechanism 5 of the clamping mechanism which is connected with the clamping arm front synchronous opening and closing mechanism and the blank taking mechanism 5 are arranged on the side of the corresponding blank taking mechanism. Whether the slider holder support plate 41 moves to the left or right depends on the forward and reverse rotation direction of the motor 31.
With continued reference to fig. 1, a front rail beam rail slider left stopper 11e is screwed to a side of the front rail beam 11a facing away from the rear rail beam 11b and at a position corresponding to the left end of the front rail beam rail 12, and a front rail beam rail slider right stopper 11f is screwed to a position corresponding to the right end of the front rail beam rail 12; a rear rail beam rail slider left stopper 11g is fixed by screws at a position corresponding to the left end of the rear rail beam rail 13 on the side of the front rail beam 11b facing away from the front rail beam 11a, and a rear rail beam rail slider right stopper 11h is fixed by screws at a position corresponding to the right end of the rear rail beam rail 13, the left and right displacement limits of the front rail beam rail slider 44 on the front rail beam rail 12 are defined by the left and right stoppers 11e and 11f of the front rail beam rail slider, and the left and right displacement limits of the rear rail beam rail slider 45 on the rear rail beam rail 13 are defined by the left and right stoppers 11g and 11h of the rear rail beam rail slider.
With continued reference to fig. 1, the aforementioned base up-and-down elevating mechanism 7 includes a base 71, a base elevating frame 72, a base elevating rear rail 73, a base elevating front rail 74, a slider fixing base rear stopper 75, a slider fixing base front stopper 76, a fixing base rear slider 77, a fixing base front slider 78, and a base elevating action cylinder 79, the base 71 corresponds to the bottom of the cantilever beam horizontal cantilever end 461 of the aforementioned cantilever beam 46 and the right end of the base 71 extends to the right side of the cantilever beam horizontal cantilever end 461, the base elevating rear rail 73 and the base elevating front rail 74 are each fixed to the left side of the cantilever beam horizontal cantilever end 461 by screws in a state longitudinally parallel to each other and the base elevating front rail 74 is located at the front side of the base elevating rear rail 73, a elevating frame fixing plate 722 is fixed to the lower end of the base elevating frame 72, the lifting frame fixing plate 722 is fixed to the left end of the base 71 by a screw toward the upper side, while the upper end of the base lifting frame 72 is fixed with a slider fixing seat 721, a slider fixing seat rear stopper 75 is fixed to the bottom surface of the cantilever beam horizontal cantilever end 461 by a screw at a position corresponding to the lower side of the base lifting rear guide rail 73, a slider fixing seat front stopper 76 is fixed to the bottom surface of the cantilever beam horizontal cantilever end 461 by a screw at a position corresponding to the lower side of the base lifting front guide rail 74, a fixing seat rear slider 77 is fixed to the right side of the rear end of the slider fixing seat 721 by a fixing seat rear slider screw 771 and is in sliding fit with the base lifting rear guide rail 73, a fixing seat front slider 78 is fixed to the right side of the front end of the slider fixing seat 721 by a fixing seat front slider screw 781 and is in sliding fit with the base lifting front guide rail 74, a base lifting action cylinder 79 is fixed to the right side of the cantilever beam horizontal cantilever end 461, the base lifting cylinder column 791 of the base lifting cylinder 79 is directed downward and fixed to one side of the right end of the base 71, wherein the cylinder body of the base lifting cylinder 79 is slidably fitted with a pair of guide rods 792, and the pair of guide rods 792 correspond to both sides of the base lifting cylinder column 791 and are fixed to one side of the right end of the base 71.
As shown in fig. 1, the gripper arm front-rear synchronous opening/closing mechanism 6, the preform gripping mechanism 5, and the preform cutting mechanism 8 are connected to the base 71 at positions corresponding to the lower portions of the base 71. From the illustration of fig. 1 and in connection with the description of the applicant above, it can be determined without doubt that: when the base 71 descends and the slider seat 721 is driven to descend by the base lifting frame 72, the extent to which the slider seat 721 descends to be contacted with the front and rear limiting blocks 76 and 75 of the slider seat indicates that the descending extent of the base 71 reaches the limit (the base cannot descend any more).
In the present embodiment, the aforementioned base lifting cylinder 79 is an air cylinder, however, if an air cylinder is replaced with an oil cylinder, it should be regarded as a substantially equivalent technical means.
When the base lift cylinder 79 is operated, for example, the base lift cylinder 791 extends outwardly of the cylinder body, the base 71 is moved downwardly (guided by the front and rear sliders 78, 77 of the holder) by the base lift cylinder 791, and when the base 71 moves downwardly to such an extent that the slider holder 721 contacts the front and rear stoppers 76, 75 of the slider holder, the base lift cylinder 791 no longer extends outwardly of the cylinder body, whereas when the base 71 is obstructed by the lower surface of the cantilever horizontal cantilever end 461, the base lift cylinder 791 no longer retracts inwardly of the cylinder body. As can be seen from this, the elevation of the base 71 depends on the operation state of the base elevation cylinder 79. The stroke of the base lifting cylinder 791 extending out of the cylinder and retracting into the cylinder is controlled by an electrical controller.
As another embodiment, the front and rear stoppers 76 and 75 of the slider fixing seat may be replaced by a position signal collector electrically connected to the electrical control box, where the position signal collector may use a travel switch, a micro switch, a position proximity switch or a reed switch, or even may use a hall sensing element.
When the base 71 is displaced upward or downward (lifted), the gripper arm front-rear synchronous opening and closing mechanism 6 is driven to correspondingly displace upward or downward.
Referring to fig. 2 in combination with fig. 1, the aforementioned synchronous opening and closing mechanism 6 for the arm comprises a support base plate 61, a synchronous gear box 62, a left rack 63a, a right rack 63b, a left guide slide bar 64, a right guide slide bar 68, a rear arm fixing plate 65, a front arm fixing plate 66 and an arm opening and closing driving cylinder 67, wherein the support base plate 61 corresponds to the lower part of the base 71, a left guide slide bar fixing seat 611 is fixed at the left end of the support base plate 61 on the side facing upward, a right guide slide bar fixing seat 612 is fixed at the right end on the side facing upward and at the position corresponding to the left guide slide bar fixing seat 611, a left guide slide bar fixing seat screw hole 6112 is formed at the upper part of the left guide slide bar fixing seat 611, the left guide slide bar fixing seat screw hole 6112 is fixed with the left end of the base 71 through a left guide slide bar fixing seat screw 61121, a right guide fixing seat screw hole 6122 is formed at the upper part of the right guide slide bar fixing seat 612, the right slide bar fixing seat screw hole 6122 is fixed with the right end of the base 71 through a right slide bar fixing seat screw, the synchronous gear box 62 is fixed on the supporting base plate 61 at a position corresponding to the right side of the left slide bar fixing seat 611, a synchronous gear 621 is rotatably provided in the synchronous gear box 62 through a synchronous gear shaft 6211, the rear end of the left rack 63a is fixedly connected with the rear clamp arm fixing plate 65 through a left rack defining nut (not shown in the figure), the middle part of the left rack 63a is meshed with the left side of the synchronous gear 621 in the synchronous gear box 62, the front end of the left rack 63a extends to the front side of the synchronous gear box 62 and corresponds to a left rack yielding hole 661 opened on the front clamp arm fixing plate 66, the front end of the right rack 63b is fixedly connected with the front clamp arm fixing plate 66 through a right rack defining nut 69, the middle part of the right rack 63b is meshed with the right side of the synchronous gear 621 in the synchronous gear box 62, and the rear end of the right rack 63b is extended to the rear side of the synchro box 62 and corresponds to the right rack relief hole 652 formed in the rear clamp arm fixing plate 65, the left guide slide bar 64 corresponds to the left side of the synchro box 62, the rear end of the left guide slide bar 64 is in sliding engagement with the left guide slide bar rear guide sleeve 641, the middle is interposed on the left guide slide bar fixing seat 611 and fixed with the left guide slide bar fixing seat 611, the front end of the left guide slide bar 64 is in sliding engagement with the left guide slide bar front guide 642, the left guide slide bar rear guide sleeve 641 is fixed with the left end rear side of the rear clamp arm fixing plate 65 by a screw, the left guide slide bar front guide 642 is also fixed with the left end front side of the front clamp arm fixing plate 66 by a screw, the right guide slide bar 68 corresponds to the right side of the clamp arm opening and closing drive cylinder 67, the rear end of the right guide slide bar 68 is in sliding engagement with the right guide sleeve 681 by a screw, the front end of the right guide bar rear guide 68 is interposed on the right guide slide bar fixing seat 612 and fixed with the right guide slide bar fixing seat 611, the front end of the right guide 68 is in sliding engagement with the right guide slide bar front guide sleeve 682 by a guide sleeve 68 by a screw, the right guide arm rear guide sleeve 68 is provided with the rear end of the right guide arm fixing plate 65 by a left clamp arm fixing plate 65 by a screw and the right guide arm fixing plate 65 is engaged with the front end of the left guide arm fixing plate 65 by the front end of the right guide arm fixing plate 65 by the right guide 68 by the rear end of the right guide slide bar 68, the right end of the front arm fixing plate 66 is slidably engaged with the front end of the right slide rod 68 via the right slide rod front guide sleeve 682, the front end of the arm opening and closing driving cylinder 67 is fixed to the arm opening and closing driving cylinder seat 672, the rear end of the arm opening and closing driving cylinder 67 extends to the rear side of the rear arm fixing plate 65 at a position corresponding to the cylinder relief cavity 651 and is configured as a horizontal cantilever end, the arm opening and closing driving cylinder post 671 of the arm opening and closing driving cylinder 67 faces forward and is connected to the front arm fixing plate 66 via a cylinder post connecting nut 6711, the bottom of the arm opening and closing driving cylinder seat 672 is fixed to the support base plate 61, and a cylinder seat connecting screw hole 6721 is formed in the top of the arm opening and closing driving cylinder seat 672, and the cylinder seat connecting screw hole 6721 is fixedly connected to the middle of the base 71 via a cylinder seat connecting screw hole screw.
As shown in fig. 2, the preform gripping mechanism 5 is connected to the preform cutting mechanism 8 between right end facing sides of the front and rear arm fixing plates 66, 65.
Referring to fig. 2, a pair of left guide slide bar fixing lugs 6111, which are located in front of and behind each other, extend from the right side of the left guide slide bar fixing seat 611, a left guide slide bar insertion hole 61111 is formed in each of the pair of left guide slide bar fixing lugs 6111, a left guide slide bar locking screw 61112 is further disposed above each of the pair of left guide slide bar fixing lugs 6111, and the middle portion of the left guide slide bar 64 is inserted into the left guide slide bar insertion hole 61111 and locked by the left guide slide bar locking screw 61112; a pair of right slide bar fixing lugs 6121 corresponding to each other in position are extended on the left side of the right slide bar fixing base 612, a right slide bar insertion hole 61211 is respectively formed at the upper position of the pair of right slide bar fixing lugs 6121, a right slide bar locking screw 61212 is respectively arranged on the pair of right slide bar fixing lugs 6121, and the middle part of the right slide bar 68 is inserted into the right slide bar insertion hole 61211 and locked by the right slide bar locking screw 61212.
In the present embodiment, the arm-lock opening/closing driving cylinder 67 is a cylinder, however, if an oil cylinder is used, it is regarded as a substantially equivalent technical means.
When the arm opening and closing driving cylinder 67 is operated, for example, the arm opening and closing driving cylinder 671 is retracted into the cylinder, that is, retracted, the arm driving cylinder 671 drives the front arm fixing plate 66 to displace backward, that is, displace toward the rear arm fixing plate 65, at this time, the front arm fixing plate 66 drives the right rack 63b, the right rack 63b drives the left rack 63a through the synchronizing gear 621, the left rack 63a drives the rear arm fixing plate 65 to displace toward the front arm fixing plate 66, and the front and rear arm fixing plates 66, 65 displace toward each other, and vice versa. When the front and rear gripper arm fixing plates 66, 65 are displaced toward each other, the preform gripping mechanism 5 is driven to close to grip the preform 10 (shown in fig. 2), and otherwise, the preform gripping mechanism 5 is driven to repel and release the preform 10.
With continued reference to fig. 2 and in combination with fig. 1, the preform gripper mechanism 5 includes a front gripper arm 51, a rear gripper arm 52, a front gripper arm rack 53 and a rear gripper arm rack 54, wherein the left end of the front gripper arm 51 is fixed to the right end of the front gripper arm fixing plate 66 by a front gripper arm fixing screw 511 toward the right end of the rear gripper arm fixing plate 65, while the right end of the front gripper arm 51 extends away from the right end of the front gripper arm fixing plate 66 and is configured as a horizontal cantilever end, the left end of the rear gripper arm 52 is fixed to the right end of the rear gripper arm fixing plate 65 by a rear gripper arm fixing screw (not shown) toward the right end of the front gripper arm fixing plate 66, and the right end of the rear gripper arm 52 extends toward the right end of the rear gripper arm fixing plate 65 and is configured as a horizontal cantilever end, and the front gripper arm rack 53 is fixed to the right end lower portion (bottom portion) of the front gripper arm 51 by a front gripper arm fixing screw, and the rear gripper arm rack 54 is also fixed to the right end lower portion (bottom portion of the rear gripper arm 52) by a rear gripper arm fixing screw (not shown) and the front gripper rack 53 corresponds to the upper rack 54. As shown in fig. 1 and 2, the pinch-off blank cutting mechanism 8 is provided on the front side of the front pinch-off arm 51.
The clamping and material-taking blank cutting mechanism 8 includes a linear cylinder 81, a sliding tool holder 82 and a clamping and material-taking blank cutter 83, wherein the linear cylinder 81 is fixed to the front side of the right end of the front clamping arm 51 in a horizontal position, specifically: the left end of the linear cylinder 81 is fixed to the front side of the front arm 51 through a linear cylinder left fixing seat 811, the right end of the linear cylinder 81 is fixed to the front side of the front arm 51 through a linear cylinder right fixing seat 812, the slide holder 82 is connected to the linear cylinder 81, the front end of the pinch-off blank cutter 83 is fixed to the slide holder 82, and the rear end of the pinch-off blank cutter 83 protrudes from the front arm 51 toward the side of the rear arm 52 at a position corresponding to the upper side of the front arm 51. The foregoing linear cylinder 81 can be understood as a rodless cylinder.
Referring to fig. 3 in combination with fig. 1 and 2, a die head mechanism 9 for blowing a preform 10 of a structural system of a blow molding machine and fixed to a frame 2 of the blow molding machine is shown in fig. 3, and the applicant will not develop the description since the die head mechanism 9 is a known technology. Fig. 3 also shows the connection of the aforementioned outer and inner blow molding machine frame connection blocks 14, 15 to the blow molding machine frame 2, in particular: the outer frame connecting base 14 of the blow moulding machine is fixed to the end of the girder 21 of the frame 2 of the blow moulding machine, while the inner frame connecting base 15 of the blow moulding machine is fixed to the girder 22 of the frame 2 of the blow moulding machine. Also shown in fig. 3 are a left shaping mechanism 20 and a right shaping mechanism 30, the left and right shaping mechanisms 20, 30 being identical in structure, the left and right shaping mechanisms 20, 30 being provided on both sides of the die mechanism 9 described above, i.e., the left shaping mechanism 20 being provided on the left side of the position state shown in fig. 3, and the right shaping mechanism being provided on the right side. Taking the left forming mechanism 20 as an example, the left forming mechanism consists of a front die frame, a back die frame, a front die half and a back die half, wherein the front die half is fixed on one side of the front die frame facing the back die frame, the back die half is fixed on one side of the back die frame facing the front die frame, the front die frame and the back die frame can be displaced towards the folding direction or the separating direction of the front die frame and the back die frame under the operation of a synchronous device of a structural system of the left forming mechanism 20, when the front die frame and the back die frame are displaced towards the folding direction, namely the opposite direction, the front die half and the back die half are clamped, and the blowing mechanism 40 (namely the blowing forming mechanism) is used for blowing forming, and otherwise, the die is opened. Since the right forming mechanism 30 is identical to the left forming mechanism 20 and is a prior art, a detailed description thereof will be omitted.
As can be seen from the schematic of fig. 3, the blow molding machine is embodied as a double-station blow molding machine because of the two sets of molds, and the structure of the present invention has two sets corresponding to the left molding mechanism 20 and the right molding mechanism 30, respectively, to satisfy the alternate operation requirement.
When the right forming mechanism 30 is operated by the preform moving device of the left blow molding machine of the present invention during the blow molding of the preform 10 in the mold, specifically: when the movable frame left-right displacement driving mechanism 3 is operated to displace the movable frame 4 (also referred to as a "movable carriage") rightward, that is, in the direction of the preform 10 shown in fig. 3, the base up-and-down lifting mechanism 7 is operated to drive the gripper arm front-and-rear synchronous opening and closing mechanism 6 to rise, and the front and rear gripper arms 51 and 52 of the structural system of the preform gripping mechanism 5 are in a state of being separated (opened) from each other, so that the preform 10 corresponds to between the front and rear gripper arms 51 and 52. Next, according to the above description of the operation principle of the synchronous arm opening and closing mechanism 6 by the applicant, the front and rear arms 51 and 52 are moved in opposite directions (the front and rear arms 51 and 52 are driven to be moved in opposite directions by the opposite directions of the front and rear arm fixing plates 66 and 65), the blank 10 is clamped by the front and rear arm racks 53 and 54, the slide blade holder 82 is driven by the linear cylinder 81 immediately after the operation of the linear cylinder 81, the blank clamping and taking blade 83 is fixed to the slide blade holder 82, the blank clamping and taking blade 83 is driven to be moved leftward by the slide blade holder 82, and the blank 10 is cut (also referred to as "snatched") at the moment when the blank clamping and taking blade 83 is moved leftward, and the cut blank 10 is clamped by the front and rear arm racks 53 and 54 and is in a cantilever state of being vertically downward. At this time, the left-right displacement driving mechanism 3 of the moving frame is operated reversely, the moving frame 4 is displaced leftwards, the gripper arm front-rear synchronous opening and closing mechanism 6 is driven by the moving frame 4 to displace leftwards until the blank 10 in the state clamped by the front and rear gripper arm racks 53, 54 is corresponded to the upper part of the left forming mechanism 20, and the front and rear half molds of the left forming mechanism 20 are in the open mold state (i.e. in the state of being separated from each other), so that the gripper arm front-rear synchronous opening and closing mechanism 6 is moved downwards by the operation of the base up-down lifting mechanism 7, the blank clamping mechanism 5 is driven downwards by the gripper arm front-rear synchronous opening and closing mechanism 6, the blank 10 in the clamped state is moved downwards between the front and rear half molds, the gripper arm front-rear synchronous opening and closing mechanism 6 is operated reversely along with the clamping of the front and rear half molds, the front and rear gripper arm fixing plates 66, 65 are also driven to separate the front and rear gripper arms 51, 52 from each other, and the blank 10 clamped by the front and rear gripper arm racks 54 is released. Then the base up-down lifting mechanism 7 works to enable the clamping arm front-back synchronous opening and closing mechanism 6 to ascend and restore to a standby state when the material blank 10 is clamped again.
In the process of forming the preform 10 between the front and rear mold halves into a hollow plastic container such as a large-capacity plastic tub by the right-hand forming mechanism 20, the right-hand forming mechanism 30 just completes the blow molding of the hollow plastic container, and the preform 10 is fed between the front and rear mold halves of the right-hand forming mechanism by the preform moving device of the blow molding machine of the present invention. The blank 10 is thus introduced into the left and right forming mechanisms 20, 30 by the blank moving device of the two blow molding machines of the present invention to meet the dual-station high-efficiency blow molding requirements.
In summary, the technical scheme provided by the invention overcomes the defects in the prior art, successfully completes the task of the invention, and faithfully honors the technical effects carried by the applicant in the technical effect column above.
Claims (10)
1. The preform moving device of the blow molding machine is characterized by comprising a blow molding machine frame connecting mechanism (1), wherein the blow molding machine frame connecting mechanism (1) is connected with a blow molding machine frame (2) of the blow molding machine in a use state; a moving frame left-right displacement driving mechanism (3), wherein the moving frame left-right displacement driving mechanism (3) is arranged on the blow molding machine frame connecting mechanism (1); a moving frame (4), the moving frame (4) is slidingly matched with the frame connecting mechanism (1) of the blow molding machine in a left-right moving way and is also connected with the left-right displacement driving mechanism (3) of the moving frame; the device comprises a blank clamping mechanism (5), a clamping arm front-back synchronous opening and closing mechanism (6) and a base up-and-down lifting mechanism (7) for enabling the clamping arm front-back synchronous opening and closing mechanism (6) to lift up and down, wherein the blank clamping mechanism (5) is connected with the clamping arm front-back synchronous opening and closing mechanism (6) in a horizontal cantilever state, the clamping arm front-back synchronous opening and closing mechanism (6) is connected with the base up-and-down lifting mechanism (7), and the base up-and-down lifting mechanism (7) is arranged on a movable frame (4); and the clamping and taking blank cutting mechanism (8) is arranged on the blank clamping mechanism (5).
2. The preform moving apparatus of a blow molding machine according to claim 1, wherein the blow molding machine frame connecting mechanism (1) comprises a front guide rail beam (11 a), a rear guide rail beam (11 b), a guide rail beam left end connecting plate (11 c), a guide rail beam right end connecting plate (11 d), a front guide rail beam guide rail (12), a rear guide rail beam guide rail (13), a blow molding machine frame outer connecting seat (14), a blow molding machine frame inner connecting seat (15), a trailing link frame (16) and a trailing link plate (17), the front guide rail beam (11 a) and the rear guide rail beam (11 b) are kept in front-rear parallel with each other in a length direction, a guide rail beam left end connecting plate (11 c) is fixed between left ends of the front guide rail beam (11 a) and the rear guide rail beam (11 b), a guide rail beam right end connecting plate (11 d) is fixed between right ends of the front guide rail beam (11 a) and the rear guide rail beam (11 b), the front guide rail beam guide rail (12) is fixed in a length direction on one side of the front guide rail beam (11 a) opposite to the rear guide rail beam (11 b), the rear guide rail beam (11 b) is fixed on the front guide rail (11 b) and the rear guide rail (11 b) opposite to the front guide rail beam (11 b), and the guide rail beam right end connecting plate (11 b) is fixed on the front guide rail beam (11 b) opposite to the front guide rail beam (11 b), the inner connecting seat (15) in the frame of the blow molding machine is respectively provided with a pair of upper parts of the middle parts corresponding to the front guide rail beams (11 a) and the rear guide rail beams (11 b) and a pair of upper parts of the right ends, the towing chain plate frames (16) are at least provided with a pair of upper parts which are distributed at intervals and are 7-shaped, the upper ends of the towing chain plate frames (16) are fixed with the upper surfaces of the middle parts of the front guide rail beams (11 a) and the rear guide rail beams (11 b), the lower ends of the towing chain plate frames are cantilever ends and extend to the lower parts of the rear guide rail beams (11 b), and the towing chain plates (17) are fixed with the lower ends of the towing chain plate frames (16); the left-right displacement driving mechanism (3) of the movable frame is arranged between the front guide rail beam (11 a) and the rear guide rail beam (11 b), and the movable frame (4) is simultaneously in sliding fit with the front guide rail beam guide rail (12) and the rear guide rail beam guide rail (13); the base up-down lifting mechanism (7) and the clamping arm front-back synchronous opening and closing mechanism (6) are arranged at one end of the movable frame (4) far away from the front guide rail beam (11 a); the clamping and taking blank cutting mechanism (8) is arranged at the front side of the blank clamping mechanism (5).
3. The preform moving device of a blow molding machine according to claim 2, wherein the moving frame left-right displacement driving mechanism (3) comprises a motor (31), a belt driving pulley (32), a belt driven pulley (33), a belt (34) and a belt partition plate (35), the motor (31) is fixed to the motor housing (312), the motor housing (312) is fixed to the left side of the rail beam left end connecting plate (11 c), a motor shaft (311) of the motor (31) is rotatably supported on the motor housing (312) and a motor shaft seat (3111), the motor shaft seat (3111) is fixed to the left side of the rail beam left end connecting plate (11 c) at a position corresponding to the front of the motor housing (312), the belt driving pulley (32) is fixed to the motor shaft (311) at a position corresponding to between the motor housing (312) and the motor shaft seat (3111), the belt driven pulley (33) is fixed to the belt driven pulley shaft (331), both ends of the belt driven pulley (331) are rotatably supported on the belt driven pulley shaft seat (1), the belt driven pulley (331) is rotatably supported on the other end of the belt driven pulley (331) is fixed to the rail beam (33) at one end, and the other end of the belt driven pulley (33) is fixed to the other end of the belt (33) is fixed to the belt driven pulley (31), a belt partition (35) fixed between the opposite sides of the front and rear rail beams (11 a, 11 b) at a position corresponding to a belt cavity of the belt (34), the belt cavity being partitioned by the belt partition (35) into a partition upper cavity (351) located above the belt partition (35) and a partition lower cavity (352) located below the belt partition (35); the moving frame (4) comprises a slide fixing seat supporting plate (41), a front guide rail slide fixing seat (42), a rear guide rail slide fixing seat (43), a front guide rail beam guide rail slide (44), a rear guide rail beam guide rail slide (45) and a cantilever beam (46), wherein the slide fixing seat supporting plate (41) corresponds to a transmission belt cavity of the transmission belt (34) and is fixedly connected with the transmission belt (34) in the transmission belt cavity through a pressing belt plate (411) positioned in a baffle lower cavity (352), the front end of the slide fixing seat supporting plate (41) extends to the front side of the front guide rail beam (11 a) at a position corresponding to the lower part of the front guide rail beam (11 a) and is bent downwards to form a cantilever beam fixing seat (412), the rear end of the slide fixing seat supporting plate (41) extends to the rear side of the rear guide rail beam (11 b) at a position corresponding to the lower part of the rear guide rail beam (11 b), the front guide rail slide fixing seat (42) is fixed to the front end of the slide fixing seat supporting plate (41) at one side of the front guide rail (12) facing the front guide rail (12) and is matched with the front guide rail (12), the back guide rail beam guide rail slider (45) is fixed on one side of a back guide rail beam (11 b) facing the back guide rail slider fixing seat (43) and is in sliding fit with the back guide rail beam guide rail (13), one end of a cantilever beam (46) facing the front guide rail beam (11 a) is fixed with the front side of the cantilever beam fixing seat (412), one end, far away from the front guide rail beam (11 a), of the cantilever beam (46) is formed into a cantilever beam horizontal cantilever end (461), the base up-down lifting mechanism (7) and the clamping arm front-back synchronous opening and closing mechanism (6) are arranged on the cantilever beam horizontal cantilever end (461), and the clamping arm front-back synchronous opening and closing mechanism (6) and the blank clamping and taking mechanism (5) and the blank clamping and cutting mechanism (8) are positioned on the lower part of the base up-down lifting mechanism (7).
4. A preform moving device of a blow molding machine according to claim 3, wherein the motor (31) is a servo motor having a forward and reverse rotation function, the belt driving wheel (32) and the belt driven wheel (33) are timing pulleys, and the belt (34) is a timing belt.
5. A preform moving device of a blow molding machine according to claim 3, wherein a front rail slider left stopper (11 e) is fixed at a position corresponding to the left end of the front rail (12) and a front rail slider right stopper (11 f) is fixed at a position corresponding to the right end of the front rail (12) at a side of the front rail beam (11 a) facing away from the rear rail beam (11 b); a left limit block (11 g) of a rear guide rail beam sliding block is fixed at a position corresponding to the left end of the rear guide rail beam guide rail (13) on one side of the rear guide rail beam (11 b) opposite to the front guide rail beam (11 a), and a right limit block (11 h) of the rear guide rail beam sliding block is fixed at a position corresponding to the right end of the rear guide rail beam guide rail (13).
6. A preform moving apparatus of a blow molding machine according to claim 3, wherein the base up-and-down elevating mechanism (7) comprises a base (71), a base elevating frame (72), a base elevating rear rail (73), a base elevating front rail (74), a slider fixing seat rear stopper (75), a slider fixing seat front stopper (76), a fixing seat rear slider (77), a fixing seat front slider (78) and a base elevating cylinder (79), the base (71) corresponds to the bottom of the cantilever beam horizontal cantilever end (461) of the cantilever beam (46) and the right end of the base (71) extends to the right side of the cantilever beam horizontal cantilever end (461), the base elevating rear rail (73) and the base elevating front rail (74) are fixed to the left side of the cantilever beam horizontal cantilever end (461) in a state longitudinally parallel to each other and the base elevating front rail (74) is located on the front side of the base elevating rear rail (73), the lower end of the base elevating frame (72) and the left end of the base (71) are fixed to one side, and the upper end of the base elevating fixing seat frame (72) is fixed with a slider (721) corresponding to the lower side of the cantilever beam horizontal cantilever beam end (461) fixed to the lower side of the base fixing seat (75), a front limit block (76) of a sliding block fixed on the sliding block fixed seat is fixed on the bottom surface of a cantilever beam horizontal cantilever end (461) at a position corresponding to the lower part of a cantilever beam horizontal cantilever end (74), a rear sliding block (77) of the fixed seat is fixed on the right side of the rear end of the sliding block fixed seat (721) and is in sliding fit with a rear base lifting guide rail (73), a front sliding block (78) of the fixed seat is fixed on the right side of the front end of the sliding block fixed seat (721) and is in sliding fit with the front base lifting guide rail (74), a base lifting cylinder (79) is fixed on the right side of a cantilever beam horizontal cantilever end (461), a base lifting cylinder column (791) of the base lifting cylinder (79) faces downwards and is fixed on one side of the right end of a base (71), a cylinder body of the base lifting cylinder (79) is in sliding fit with a pair of guide rods (792) corresponding to the two sides of a base lifting cylinder column (791) and is fixed on one side of the right end of the base (71), and a clamping arm front and rear synchronous opening and closing mechanism (6) is connected with a blank clamping mechanism (5) and a blank taking mechanism (8) in the position corresponding to the lower part of the base (71).
7. The preform moving device of a blow molding machine according to claim 6, wherein the gripper arm front-rear synchronous opening and closing mechanism (6) comprises a support base plate (61), a synchronous gear box (62), a left rack (63 a), a right rack (63 b), a left slide guide bar (64), a right slide guide bar (68), a rear gripper arm fixing plate (65), a front gripper arm fixing plate (66) and a gripper arm opening and closing driving cylinder (67), the support base plate (61) corresponds to the lower part of the base plate (71), a left slide guide bar fixing seat (611) is fixed on the side of the support base plate (61) with the left end facing upward, a right slide guide bar fixing seat (612) is fixed on the side of the right end facing upward and at a position corresponding to the left slide bar fixing seat (611), the left slide guide bar fixing seat (611) is fixed with the left end of the base plate (71), the synchronous gear box (62) is fixed on the support base plate (61) at a position corresponding to the right side of the left slide guide fixing seat (65), a synchronous gear rack (63) is rotatably connected with the left rack (621) in the middle part (621) at the synchronous gear box (62) and engaged with the left rack fixing seat (63), the front end of the left rack (63 a) extends to the front side of the synchronous gear box (62) and corresponds to a left rack yielding hole (661) formed on the front clamping arm fixing plate (66), the front end of the right rack (63 b) is fixedly connected with the front clamping arm fixing plate (66), the middle part of the right rack (63 b) is meshed with the right side of the synchronous gear (621) in the synchronous gear box (62), the rear end of the right rack (63 b) extends to the rear side of the synchronous gear box (62) and corresponds to a right rack yielding hole (652) formed on the rear clamping arm fixing plate (65), the left guide slide bar (64) corresponds to the left side of the synchronous gear box (62), the rear end of the left guide slide bar (64) is in sliding fit with the left guide sleeve (641) of the left guide slide bar, the middle part is inserted on the left guide slide bar fixing seat (611) and is fixed with the left guide fixing seat (611), the front end of the left guide sleeve (64) is in sliding fit with the left guide sleeve front (642), the left guide sleeve (641) is in sliding fit with the left guide sleeve (68) of the left guide cylinder (68) and acts on the right guide sleeve (68) of the left guide cylinder (68) which is fixed with the left guide sleeve (68) on the rear end of the rear clamping arm fixing plate, the middle part is inserted on the right guide slide bar fixing seat (612) and is fixed with the right guide slide bar fixing seat (612), the front end of the right guide slide bar (68) is in sliding fit with the right guide slide bar front guide sleeve (682), the right guide slide bar rear guide sleeve (681) is fixed with the right end rear side of the rear clamp arm fixing plate (65), the right guide slide bar front guide sleeve (682) is fixed with the right end front side of the front clamp arm fixing plate (66), the left end of the rear clamp arm fixing plate (65) is in sliding fit with the rear end of the left guide slide bar (64) through the left guide slide bar rear guide sleeve (641), the right end of the rear clamp arm fixing plate (65) is in sliding fit with the rear end of the right guide slide bar (68) through the right guide slide bar rear guide sleeve (681), an action cylinder clearance cavity (651) is formed in the middle part of the rear clamp arm fixing plate (65) and at a position corresponding to the clamp arm clearance driving action cylinder (67), the left end of the front clamp arm fixing plate (66) is in sliding fit with the front end of the left guide slide bar (64) through the left guide slide bar rear guide sleeve (642), the right end of the front clamp arm fixing plate (66) is in sliding fit with the front end of the front clamp arm fixing plate (68) through the right guide sleeve (672) through the right guide slide bar rear end of the right guide sleeve (681) and the front end of the right clamp arm fixing plate (68, the rear end of the clamping arm opening and closing driving action cylinder (67) stretches to the rear side of the rear clamping arm fixing plate (65) at a position corresponding to the action cylinder abdication cavity (651) and is formed into a horizontal cantilever end, a clamping arm opening and closing driving action cylinder column (671) of the clamping arm opening and closing driving action cylinder (67) faces forwards and is connected with the front clamping arm fixing plate (66), the bottom of the clamping arm opening and closing driving action cylinder seat (672) is fixed with the supporting bottom plate (61), the top of the clamping arm opening and closing driving action cylinder seat (672) is fixedly connected with the middle of the base (71), and the material blank clamping mechanism (5) and the material blank clamping and taking cutting mechanism (8) are connected between the right opposite sides of the front clamping arm fixing plate (66) and the rear clamping arm fixing plate (65).
8. The blank moving device of a blow molding machine according to claim 7, characterized in that a pair of left guide slide bar fixing lugs (6111) corresponding to each other in position extend on the right side of the left guide slide bar fixing seat (611), a left guide slide bar insertion hole (61111) is formed on each of the pair of left guide slide bar fixing lugs (6111), and a left guide slide bar locking screw (61112) is also provided on each of the pair of left guide slide bar fixing lugs (6111), and the middle part of the left guide slide bar (64) is inserted into the left guide slide bar insertion hole (61111) and locked by the left guide slide bar locking screw (61112); a pair of right guide slide bar fixing lugs (6121) which are positioned in front of and behind each other extend to the left side of the right guide slide bar fixing seat (612), a right guide slide bar inserting hole (61211) is respectively formed in the pair of right guide slide bar fixing lugs (6121), a right guide slide bar locking screw (61212) is respectively arranged on the pair of right guide slide bar fixing lugs (6121), and the middle part of the right guide slide bar (68) is inserted into the right guide slide bar inserting hole (61211) and is locked by the right guide slide bar locking screw (61212); the clamping arm opening and closing driving action cylinder (67) is an air cylinder or an oil cylinder.
9. The preform moving device of a blow molding machine according to claim 7, wherein the preform gripping mechanism (5) includes a front gripper arm (51), a rear gripper arm (52), a front gripper arm rack (53) and a rear gripper arm rack (54), the left end of the front gripper arm (51) is fixed to the right end of the front gripper arm fixing plate (66) toward one side of the rear gripper arm fixing plate (65), the right end of the front gripper arm (51) is configured as a horizontal cantilever end, the left end of the rear gripper arm (52) is fixed to the right end of the rear gripper arm fixing plate (65) toward one side of the front gripper arm fixing plate (66), the right end of the rear gripper arm (52) is configured as a horizontal cantilever end, the front gripper arm rack (53) is fixed to the lower right end of the front gripper arm (51), the rear gripper arm rack (54) is fixed to the lower right end of the rear gripper arm (52) and the racks on the front and rear gripper arm racks (53, 54) are corresponded to each other, and the cut-off mechanism (8) is provided on the front gripper arm (51).
10. The preform moving device of a blow molding machine according to claim 9, wherein said preform cutting mechanism (8) comprises a linear cylinder (81), a slide blade holder (82) and a preform cutter (83), the linear cylinder (81) being fixed to a front side of a right end of said front gripper arm (51) in a horizontal lying state, the slide blade holder (82) being connected to the linear cylinder (81), a front end of the preform cutter (83) being fixed to the slide blade holder (82), and a rear end of the preform cutter (83) being projected from the front gripper arm (51) toward a side of said rear gripper arm (52) at a position corresponding to an upper side of said front gripper arm (51).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810908913.1A CN108790109B (en) | 2018-08-10 | 2018-08-10 | Blank moving device of blow molding machine |
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| CN201810908913.1A CN108790109B (en) | 2018-08-10 | 2018-08-10 | Blank moving device of blow molding machine |
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| CN108790109A CN108790109A (en) | 2018-11-13 |
| CN108790109B true CN108790109B (en) | 2024-04-26 |
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| CN113733524B (en) * | 2021-08-20 | 2023-04-18 | 德玛克(浙江)精工科技有限公司 | Bottle base fixture |
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Address after: No. 21 Fenghuang Avenue, Fenghuang Town, Zhangjiagang City, Suzhou City, Jiangsu Province 215614 Patentee after: Suzhou Tongda Machinery Co.,Ltd. Country or region after: China Address before: No. 8 Fenghuang Avenue, Fenghuang Town, Zhangjiagang City, Suzhou City, Jiangsu Province 215614 Patentee before: SUZHOU TONGDA MACHINERY Co.,Ltd. Country or region before: China |