CN111039061A

CN111039061A - SMD material distributing machine

Info

Publication number: CN111039061A
Application number: CN201911374307.7A
Authority: CN
Inventors: 刘丙凯; 庞克俭; 李军凯; 孙磊磊; 赵瑞华; 袁彪; 靳英策; 杨国喆; 李晓斌; 滑国红; 武义桥; 王飞
Original assignee: CETC 13 Research Institute
Current assignee: CETC 13 Research Institute
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-04-21
Anticipated expiration: 2039-12-27
Also published as: CN111039061B

Abstract

The invention provides an SMD material sending machine, which belongs to the technical field of SMD surface mounting, wherein a feeding mechanism, a cutting mechanism, a counting mechanism and an intermediate disc reversing mechanism are sequentially arranged on a fixed rack, a final disc mechanism is arranged on the fixed rack and symmetrically arranged on the left side and the right side of the fixed rack with the intermediate disc reversing mechanism, and the cutting mechanism and the counting mechanism are positioned between the intermediate disc reversing mechanism and the final disc mechanism; the feeding mechanism provides the material area that has surface mounting device, counts and conveys backward through the counting mechanism, and on the material area winding of count was coiled the mechanism in the middle of falling a set, after the material area through the count reachd preset numerical value, shutdown mechanism cut off the material area, and the counter mechanism counter rotation will be through the material area of count reverse conveying to the final batch pan mechanism on twine. The SMD material distributing machine provided by the invention integrates the functions of counting, cutting and discharging, and the material belt wound on the final material disc can be directly used for the chip mounting machine to carry out chip mounting, so that the efficiency of discharging the disc materials out of the warehouse is greatly improved, and the time and the labor are saved.

Description

SMD material distributing machine

Technical Field

The invention belongs to the technical field of surface mounting of SMD (surface mounted device), and particularly relates to an SMD material sending machine.

Background

In the field of SMD Surface Mounted Devices (abbreviated as Surface Mounted Devices, which is one of SMT-Surface mount technology Surface Mounted Devices, namely, chip components), finished capacitors or resistors are packaged by a material tape, and the material tape is wound on a dedicated tray for use. In some electronic manufacturing processes with small batch production, the use of the whole disc of SMD material is not needed, so that the resistors or capacitors wound on the disc need to be counted as required and wound on an empty disc to be delivered out of a warehouse according to the original winding mode.

At present, the mode of manual counting is mostly adopted in a factory to realize the inverted disc material distribution of SMD materials. The conventional SMD material counting machine, counting machine or material sending machine only has a counting function, cannot automatically cut a material belt after one-time material counting, needs manual material cutting, cannot simultaneously meet the winding operation of automatic cutting, disc reversing and an original winding mode on one device according to the original winding mode, wastes time and labor in operation, and cannot really realize the function of sending the material as required.

Disclosure of Invention

The invention aims to provide an SMD material sending machine, and aims to solve the problem that counting, cutting and discharging cannot be integrated in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: the SMD distributing machine comprises a fixed rack, a feeding mechanism, a cutting mechanism, a counting mechanism, an intermediate disc reversing mechanism and an end disc mechanism, wherein the feeding mechanism, the cutting mechanism, the counting mechanism and the intermediate disc reversing mechanism are sequentially arranged on the fixed rack; the feeding mechanism provides the material area that has surface mounting device, warp counting mechanism count and backward conveying, and the material area through the count twines in the middle mechanism of falling a set, after the material area through the count reachs preset numerical value, shutdown mechanism cuts off the material area, counter mechanism reverse rotation will carry the material area through the count reverse conveying to twine in the material plate mechanism of ending.

As another embodiment of the present application, the SMD sender further includes: the first guide mechanism is arranged on the fixed rack, is arranged between the counting mechanism and the middle tray reversing mechanism, and is used for guiding the counted material belt to the middle tray reversing mechanism; the second guide mechanism is installed on the fixed rack, is arranged between the end material tray mechanism and the cutting mechanism, and is used for guiding the material belt reversely conveyed by the counting mechanism to the end material tray mechanism.

As another embodiment of the present application, the first guiding mechanism includes a first guiding groove and a first bidirectional moving component, the first guiding groove is used for guiding the material belt to the intermediate tray-dumping mechanism; the first bidirectional moving assembly is fixedly connected with the first guide groove and is used for driving the first guide groove to move left and right so that the first guide groove is close to the middle tray dumping mechanism or far away from the middle tray dumping mechanism; the structure of the second guide mechanism is the same as that of the first guide mechanism.

As another embodiment of the present application, the first bidirectional moving assembly includes: the first sliding rail is fixedly connected with the fixed rack; the first sliding block is connected with the first sliding rail in a sliding mode and is fixedly connected with the first guide groove; the first rack is fixedly connected with the first sliding block; the first driving gear is meshed with the first rack and is used for driving the first rack to move left and right; the first driving motor is used for driving the first driving gear to rotate; the first sliding block drives the first guide groove to move left and right by means of the first driving motor.

As another embodiment of this application, first guide way is close to the one end of middle mechanism of falling a set is equipped with first leading-in sharp mouth, the middle of middle mechanism of falling a set fall be equipped with the spacing hole in material area that leading-in sharp mouth corresponds, the tip in material area through the count is in insert under the guide of first leading-in sharp mouth the spacing downthehole in material area.

As another embodiment of the present application, the first guide mechanism further includes: the first photoelectric switch is arranged on the fixed rack and used for collecting a signal of a material belt transmitted to the middle tray-turning mechanism and transmitting the signal to the first guide mechanism; the second guide mechanism further includes: and the second photoelectric switch is arranged on the fixed rack and used for acquiring signals of the material belt conveyed to the finishing disc mechanism and transmitting the signals to the second guide mechanism.

As another embodiment of the present application, the SMD dispenser further includes: the material guide body is fixed on the fixed rack and located on one side, close to the feeding mechanism, of the cutting mechanism, a feeding hole for a material belt to pass through is formed in the material guide body, and the material belt provided by the feeding mechanism is conveyed to the cutting mechanism through the feeding hole.

As another embodiment of the present application, the guide body is further provided with a guide hole for passing the counted material tape when the material tape is reversely conveyed, and the guide hole is located below the feed hole.

As another embodiment of this application, the left and right sides of counting mechanism is equipped with respectively and is used for leading the straight preceding guide way and the back guide way that convey of material area, preceding guide way with back guide way all install with on the stationary gantry.

As another embodiment of the present application, the SMD dispenser further includes: the touch screen is arranged on the fixed rack and provided with a programmable controller, and the feeding mechanism, the cutting mechanism, the counting mechanism, the middle tray reversing mechanism and the end tray mechanism are all electrically connected with the programmable controller.

The SMD material sending machine provided by the invention has the beneficial effects that: compared with the prior art, the SMD material sending machine comprises a feeding mechanism, a cutting mechanism, a counting mechanism and a middle disc reversing mechanism which are sequentially arranged on a fixed rack, wherein the final material disc mechanism and the middle disc reversing mechanism are symmetrically arranged on the left side and the right side of the fixed rack respectively, an original material belt passes through the feeding mechanism, is counted by the counting mechanism and is conveyed backwards to the middle disc reversing mechanism, the counted material belt is wound on the middle disc reversing mechanism, after the counted material belt reaches a preset value, the cutting mechanism cuts off the material belt, then the counting mechanism rotates reversely, and the counted material belt is conveyed backwards to the final material disc mechanism to be wound. The material belt is transferred by the middle plate-reversing mechanism, the front end of the material belt is arranged in the middle material plate on the middle plate-reversing mechanism, the tail end of the material belt is arranged outside the middle material plate and then reversely conveyed to the final material plate mechanism to be wound, the tail end of the material belt on the final material plate is arranged in the inner part, and the tail end of the material belt is exposed outside, so that the material belt with the same counting as the original winding mode can be wound on the final material plate mechanism, the wound final material plate is a product required by a client, and the wound material belt can be directly used for chip mounting of a chip mounter after being taken out of a warehouse without manual operation and then wound on the final material plate which is directly used by. The invention integrates the functions of counting, cutting and pouring, and the material belt wound on the final material disc can be directly used for sticking, thereby greatly improving the efficiency of material disc and saving time and labor.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic front structural view of an SMD dispenser according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a back surface of the SMD dispenser provided in fig. 1;

fig. 3 is a schematic front structural view of the SMD feeder of fig. 1 without the feeding mechanism, the intermediate tray reversing mechanism and the final tray mechanism;

fig. 4 is a schematic structural view of the back surface of the SMD dispenser shown in fig. 3;

fig. 5 is a schematic perspective view of a first guide mechanism, a second guide mechanism and a counting mechanism of the SMD feeder shown in fig. 1;

fig. 6 is a schematic perspective view of a first guide mechanism, a second guide mechanism and a counting mechanism of the SMD feeder shown in fig. 1;

fig. 7 is a schematic diagram of a back structure of the SMD dispenser provided in fig. 6;

fig. 8 is a schematic perspective view of a cutting mechanism of the SMD dispenser according to the embodiment of fig. 1;

fig. 9 is a schematic perspective view of an intermediate inverted disc of the SMD dispenser provided in fig. 1;

fig. 10 is a schematic structural diagram of a tape with surface mount devices according to the present invention.

In the figure: 1. a fixed rack; 2. a touch screen; 3. a switch button; 4. a middle tray reversing mechanism; 41. reversing the disc in the middle; 42. a transfer drive motor; 5. a first guide mechanism; 51. a first drive motor; 52. a first guide groove; 53. a first photoelectric switch; 54. a first slider; 55. a first rack; 56. a first drive gear; 57. a first slide rail; 58. a first lead-in nib; 59. a first photoelectric barrier sheet; 6. a counting mechanism; 61. a counting stepper motor; 62. a drive gear; 63. pressing a plate; 64. a counting gear; 7. a second guide mechanism; 71. a second drive motor; 72. a second photoelectric switch; 73. a second slider; 74. a second rack; 75. a second driving gear; 76. a second slide rail; 77. a second guide groove; 78. a second lead-in nib; 8. a material belt; 81. positioning holes; 82. surface mounting a device; 9. a feeding mechanism; 91. a feeding tray; 92. a feed drive motor; 10. a finishing tray mechanism; 101. a finishing plate; 102. a final material drive motor; 11. a cutting mechanism; 111. mounting a plate; 112. a cylinder; 113. pneumatic scissors; 12. a conductor body; 121. a feed port; 13. a front guide groove; 14. and a rear guide groove.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 9 together, the SMD dispenser according to the present invention will now be described. The SMD distributing machine comprises a fixed rack 1, a feeding mechanism 9, a cutting mechanism 11, a counting mechanism 6, a middle plate reversing mechanism 4 and a final plate reversing mechanism 10, wherein the feeding mechanism 9, the cutting mechanism 11, the counting mechanism 6 and the middle plate reversing mechanism 4 are sequentially arranged on the fixed rack 1, the final plate reversing mechanism 10 is arranged on the fixed rack 1 and symmetrically distributed on the left side and the right side of the fixed rack 1 together with the middle plate reversing mechanism 4, and the cutting mechanism 11 and the counting mechanism 6 are positioned between the middle plate reversing mechanism 4 and the final plate reversing mechanism 10; the feeding mechanism 9 provides the material area 8 that has the surface mounting device, warp 6 counts of counting mechanism and backward conveying, and the material area 8 through the count twines in the middle mechanism of falling a set 4, after 8 reachs the numerical value of predetermineeing through the material area of count, shutdown mechanism 11 cuts off the

material area

8, 6 counter rotation of counting mechanism will be through 8 counter conveying in the material area of count to twine on the final tray mechanism 10.

Compared with the prior art, the SMD feeding machine comprises a feeding mechanism 9, a cutting mechanism 11, a counting mechanism 6 and a middle disc reversing mechanism 4 which are sequentially arranged on a fixed rack 1, wherein a final disc mechanism 10 and the middle disc reversing mechanism 4 are symmetrically arranged on the left side and the right side of the fixed rack 1 respectively. During the dish material, original material area 8 passes through feeding mechanism 9, through the 6 counts of counting mechanism and backward convey in the middle of falling a set mechanism 4, on the material area 8 through the count twined in the middle of falling a set mechanism 4, after 8 reach preset numerical value in the material area through the count, shutdown mechanism 11 cuts off material area 8, then 6 antiport of counting mechanism will be through 8 antiport in the material area of count and twine on final tray mechanism 10. The material belt is transferred by the middle plate-reversing mechanism 4 and then wound on the middle plate-reversing mechanism, the head end of the material belt is arranged at the innermost part of the wound material belt, the tail end of the material belt is arranged outside the material belt and then reversely conveyed to the final material plate mechanism 10 to be wound, the tail end of the material belt is firstly contacted with the final material plate and wound at the innermost part of the disc-shaped material belt, and the head end of the material belt is exposed outside the disc-shaped material belt, so that the material belt 8 with the same counting as the original winding mode can be wound on the final material plate mechanism 10, the wound final material plate 101 is a product required by a customer, and the wound material belt can be directly used for chip mounting of a chip mounter after being taken out of a warehouse. The invention integrates the functions of counting, cutting and pouring into a whole, and the wound final material disc 101 can be directly used for sticking, thereby greatly improving the efficiency of material disc, saving the material distributing time and saving time and labor.

The counting mechanism 6 may adopt the prior art, and in this embodiment, referring to fig. 1 to 7, the counting mechanism 6 specifically includes: the counting stepping motor 61 is installed on the fixed rack 1, the counting gear 64 is in driving connection with the counting stepping motor 61, and the driving gear 62 is used for meshing with the positioning hole on the material belt 8 and driving the material belt 8 to convey backwards through the counting stepping motor 61; the counter gear 64 is rotated in synchronization with the driving gear 62 by the counter stepping motor 61 for counting the surface mount devices on the tape 8. When the material is coiled, firstly, the material disk to be coiled is loaded on the feeding mechanism 9, the material belt 8 is manually fed forwards from the raw material disk, passes through the cutting mechanism 11, reaches the counting mechanism 6 and is meshed with the driving gear 62 of the counting mechanism 6, then the counting stepping motor 61 is started, the material belt 8 is counted and is conveyed backwards to the middle plate reversing mechanism 4, the middle plate reversing mechanism 4 is started, the front end of the counted material belt 8 can be wound on the middle plate reversing 41, when the counted material belt 8 needs to be wound on the end material disk mechanism 10, because the material belt 8 is cut off, and the end of the counted material belt 8 is still meshed with the driving motor, at the moment, the counting stepping motor 61 rotates reversely, the material belt 8 can be driven to move reversely until the end of the counted material belt 8 reaches the end material disk mechanism 10, after the plate reversing is wound, the end of the material belt 8 is still positioned inside the end material disk 101 after the material disk is coiled, the front end of the material strip 8 is still outside the finishing tray 101 and is consistent with the originally wound material strip 8, that is, the original winding mode is maintained.

The principle of this embodiment is as follows: referring to fig. 10, according to the structure of the material tape 8, positioning holes are uniformly formed at intervals on one side of the material tape 8, the surface mounter 82 is disposed on the other side of the material tape 8, wherein the surface mounted device is located between two adjacent positioning holes 81, therefore, the counting can be the counting of the positioning holes, because the material tape 8 and the driving gear 62 are in a tangent relationship, the driving gear 62 can only be meshed with one positioning hole at a time, wherein the driving gear 62 is meshed with another positioning hole from one positioning hole, the counting gear 64 rotates by one tooth, and the number of the surface mounted devices on the material tape 8 can be counted by the number of the rotating teeth of the counting gear 64.

In this embodiment, the counting mechanism 6 further includes: and the pressing plate 63 is arranged above the driving gear 62 and connected with the fixed rack 1, and the pressing plate 63 is used for limiting the material belt 8, so that the driving gear 62 is meshed with the material belt 8, and the material belt 8 is prevented from separating from the driving gear 62.

Referring to fig. 1 to 7, an SMD dispenser according to an embodiment of the present invention further includes: the counting mechanism comprises a first guide mechanism 5 and a second guide mechanism 7, wherein the first guide mechanism 5 is installed on the fixed rack 1, is arranged between the counting mechanism 6 and the middle tray reversing mechanism 4, and is used for guiding a counted material belt 8 to the middle tray reversing mechanism 4; the second guide mechanism 7 is installed on the fixed rack 1, is arranged between the finishing tray mechanism 10 and the cutting mechanism 11, and is used for guiding the material belt 8 reversely conveyed by the counting mechanism 6 to the finishing tray mechanism 10. First guiding mechanism 5 and second guiding mechanism 7 play the effect of guide material area 8, specifically, count step motor 61 starts, drives material area 8 and moves backward, and through the guide of first guiding mechanism 5, material area 8 meets with middle mechanism 4 of falling a set, starts middle mechanism 4 of falling a set, and the material area 8 through the count can twine in middle 41 of falling a set.

As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 to fig. 7, the first guiding mechanism 5 includes a first guiding groove 52 and a first bidirectional moving component, the first guiding groove 52 is used for guiding the tape 8 to the intermediate tray-dumping mechanism 4; the first bidirectional moving assembly is fixedly connected with the first guide groove 52 and is used for driving the first guide groove 52 to move left and right, so that the first guide groove 52 is close to the middle tray-dumping mechanism 4 or far away from the middle tray-dumping mechanism 4; the second guide mechanism 7 has the same structure as the first guide mechanism 5. The second guide mechanism 7 includes a second guide groove 77 and a second bi-directional moving member. Specifically, when the material tape 8 counted by the counting mechanism 6 enters the first guide groove 52 and continues to be conveyed backwards until the end of the counted material tape 8 is exposed from the other end of the first guide groove 52, the first bidirectional moving assembly is started to drive the first guide groove 52 to move towards the middle tray reversing mechanism 4, so as to prevent the material tape 8 from deviating from the movement track.

As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 to 7, the first bidirectional moving assembly includes: the first slide rail 57, the first slide block 54, the first rack 55, the first driving gear 56 and the first driving motor 51 are fixedly connected with the fixed rack 1; the first sliding block 54 is slidably connected with the first sliding rail 57 and is fixedly connected with the first guiding groove 52; the first rack 55 is fixedly connected with the first sliding block 54; a first driving gear 56 is meshed with the first rack 55 and is used for driving the first rack 55 to move left and right; the first driving motor 51 is used for driving the first driving gear 56 to rotate; the first slider 54 drives the first guide groove 52 to move left and right by the first driving motor 51. The corresponding second bi-directional moving assembly includes a second slide rail 76, a second slider 73, a second rack 74, a second driving gear 75 and a second driving motor 71.

As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 to 7, one end of the first guide groove 52 close to the middle tray inverting mechanism 4 is provided with a first leading-in sharp nozzle 58, a middle tray inverting of the middle tray inverting mechanism 4 is provided with a material tape 8 limiting hole corresponding to the first leading-in sharp nozzle 58, and an end of the counted material tape 8 is inserted into the material tape 8 limiting hole along with the guide of the first guide groove 52. Specifically, when first guide way 52 removes backward, after guide material area 8 inserts the spacing hole in material area 8, then start the transfer driving motor 42 of middle mechanism 4 of falling dish, fall dish 41 and rotate in the middle of the drive, and simultaneously, first driving motor 51 and count step motor 61 stall, the material area 8 winding of count is on middle mechanism 41 of falling dish, then first driving motor 51 starts, begin the reversal, drive first guide way 52 reverse movement through the rack and pinion, return the initial position, avoid taking place to interfere when twining the material area on first guide way 52 and the middle mechanism 41 of falling dish, at this moment, the material area is under the drive of transfer driving motor 42, can drive the material area and convey backward, count mechanism 6 counts, pass first guide way 52, the winding is on middle mechanism 41 of falling dish.

In this embodiment, referring to fig. 1, fig. 2, and fig. 9, the feeding mechanism 9, the middle tray reversing mechanism 4, and the final tray mechanism 10 have the same structure, the middle tray reversing mechanism 4 includes a middle tray fixed on the fixed rack 1 by a bracket and a transfer driving motor 42 for driving the middle tray reversing mechanism 41 to rotate, the middle tray reversing mechanism 41 is provided with a limiting groove for limiting the material tape 8 and a middle rotating shaft, and the middle rotating shaft is provided with a limiting hole for radially arranging the material tape 8. The feeding mechanism comprises a feeding disc 91 and a feeding driving motor 92, and the finishing disc mechanism comprises a finishing disc 101 and a finishing driving motor 102. Taking the middle tray reversing mechanism as an example, the first guide groove 52 moves along the middle tray reversing 41 in the horizontal direction until the end of the first guide groove 52 is butted with the material belt 8 limiting hole, so that the end of the material belt 8 enters the material belt 8 limiting hole, due to the flexibility of the material belt 8, after the end of the material belt 8 is inserted into the material belt 8 limiting hole, the middle tray reversing 41 rotates, the end of the material belt 8 can be bent in the material belt 8 limiting hole, the fixing effect on the back winding of the material belt 8 is achieved, then the first driving motor 51 is started and starts to reverse, the first guide groove 52 is driven to reversely move through the gear rack, the initial position is returned, and the interference is avoided when the material belt 8 is wound on the first guide groove 52 and the middle tray reversing 41. Similarly, the counted material belt 8 is reversely conveyed by the counting mechanism 6 to enter the second guide groove 77 until the end of the counted material belt 8 is exposed out of the second guide groove 77, the second driving motor 71 is started, the second guide groove 77 is driven by the second rack 74 and the second slider 73 to move towards the finishing tray until the end of the second guide groove 77 is butted with the material belt 8 limit hole on the finishing tray, the end of the counted material belt 8 is inserted into the material belt limit hole on the finishing tray, the finishing driving motor 102 is started to drive the material belt 8 to wind, meanwhile, the counting stepping motor 61 and the second driving motor 71 are turned off, the finishing material driving motor 102 drives the finishing material tray to rotate, so that the counted material belt 8 is wound on the finishing material tray, then the second driving motor 71 is started to rotate reversely, the second guiding groove 77 is driven by the gear rack to move reversely, and the initial position is returned, so that the interference between the second guiding groove 77 and the material belt 8 wound on the finishing tray is avoided.

As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 to 7, the first guiding mechanism 5 further includes: the first photoelectric switch 53 is mounted on the fixed rack 1 and used for collecting signals of the material belt 8 transmitted to the direction of the middle tray-turning mechanism 4 and transmitting the signals to the first guide mechanism 5; the second guide mechanism 7 further includes: and the second photoelectric switch 72 is arranged on the fixed rack 1 and is used for acquiring signals of the material belt 8 conveyed towards the finishing tray mechanism 10 and transmitting the signals to the second guide mechanism 7. The signal that 8 material areas pass through is gathered through first photoelectric switch 53, with signal transmission to controller, the controller with signal transmission to first driving motor 51, first driving motor 51 starts, drives first guide way 52 and removes. In this embodiment, the first photoelectric barrier 59 and the second photoelectric barrier corresponding to the first photoelectric switch 53 and the second photoelectric switch 72 are provided on the fixed gantry 1.

As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 to 7, the SMD feeder further includes: the material guiding body 12 is fixed on the fixing rack 1, the material guiding body 12 is located on one side, close to the feeding mechanism 9, of the cutting mechanism 11, a feeding hole 121 for a material belt 8 to pass through is formed in the material guiding body 12, and the material belt 8 provided by the feeding mechanism 9 is sent to the cutting mechanism 11 through the feeding hole 121. The guide body 12 serves as a guide and support for the material strip 8. In this embodiment, the feeding tray 91 is located above the finishing tray, and the material strip 8 is obliquely and downwardly fed to the counting mechanism 6 through the feeding hole 121, so that the feeding hole 121 is obliquely arranged to guide the material strip 8.

As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 to 7, the guide body 12 is further provided with a guide hole for passing the counted material tape 8 in a reverse direction, and the guide hole is located below the feeding hole 121. In this embodiment, the guide body 12 is installed between the second guide groove 77 and the cutting mechanism 11 with the guide hole being located on the same horizontal plane as the center of the first guide groove 52.

Referring to fig. 1, 3, 5 to 6, as a specific implementation manner of the embodiment of the present invention, a front guide groove 13 and a rear guide groove 14 for guiding a tape 8 to be conveyed straight are respectively disposed on the left and right sides of the counting mechanism 6, and both the front guide groove 13 and the rear guide groove 14 are mounted on the fixed rack 1. Specifically, the center lines of the second guide groove 77, the guide hole of the material guide body 12, the front guide groove 13, the rear guide groove 14 and the first guide groove 52 are all in the same horizontal plane, which plays a role in stably supporting and guiding the delivery of the material strip 8.

In the present embodiment, referring to fig. 1, 2 and 8, the cutting mechanism 11 includes an air cylinder 112 and pneumatic scissors 113 connected to the air cylinder 112. The cylinder 112 is connected to the stationary gantry 1 through a mounting plate 111. In this embodiment, the pneumatic scissors 113 may also be implemented by using the existing NW-35 series pneumatic scissors 113 and different types of pneumatic scissors 113 made by different manufacturers and published on the internet.

As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 to 2, the SMD feeder further includes: the touch screen 2 with the programmable controller is arranged on the fixed rack 1, and the feeding mechanism 9, the cutting mechanism 11, the counting mechanism 6, the middle plate reversing mechanism 4 and the end plate mechanism 10 are all electrically connected with the programmable controller. The touch screen 2 is used for setting parameters, inputting commands and the like, and the PLC 4 is used for controlling the motion of the driving motor and the action of the air cylinder. In this embodiment, the programmable controller is of siemens 7-300 series, mitsubishi fx series, or the like, or may be of another existing type, and the touch screen 2 is a mature technology in the prior art, which is not explained in detail in this embodiment.

In this embodiment, referring to fig. 1, a switch button 3 electrically connected to the touch screen 2 is further disposed on the stationary gantry 1.

The working principle of the invention is as follows: referring to fig. 1, the material to be dispensed is first loaded onto the feeding mechanism 9, the material tape 8 is manually fed from the feeding disk 91 through the feeding hole 121 of the guide body 12, and then manually fed forward, and due to the flexibility of the material tape 8, the material tape 8 automatically passes through the pneumatic scissors 113 and the front guide groove 13, respectively, to the position of the counting mechanism 6 and engages with the driving gear 62 of the counting mechanism 6, and then the material tape 8 continues to pass forward through the rear guide groove 14.

Clicking a button of 'starting to send out' on the touch screen 2, starting the counting stepping motor 61 to drive the material belt 8 to continue to move forward, starting counting by the counting gear 64, when the material belt 8 reaches the first guide groove 52, starting the first driving motor 51 to drive the first guide groove 52 to continue to move forward, and at the moment, the rotating speed of the first driving motor 51 is the same as that of the counting stepping driving motor. The first guide groove 52 plays a role in guiding, the material belt 8 is guided to enter between two discs of the middle disc reversing mechanism 4, namely a limiting groove is formed between the two discs, the first guide groove 52 is over against a material belt 8 limiting hole in the center of the material disc, and the front end of the material belt 8 is just inserted into the material belt 8 limiting hole; then the driving transfer driving motor 42 of the middle tray reversing mechanism 4 is started, meanwhile, the first driving motor 51 and the counting stepping motor 61 stop rotating, the middle tray reversing drives the material belt 8 to wind on the middle tray reversing, then the first driving motor 51 is started, and the first guide groove 52 is driven by the gear rack to return to the initial position, so that interference with the material belt 8 on the material tray is avoided.

When the counted number is close to a preset numerical value, the system automatically decelerates, and when the counted number reaches the preset numerical value, the material belt 8 is positioned at a low speed, so that the position of the cut of the pneumatic scissors 113 is just positioned between the two surface-mounted devices, the material is prevented from being cut, the transfer driving motor 42 on the middle disc reversing mechanism 4 stops, the pneumatic scissors are started, and the material belt 8 is cut.

Then, the counting stepping motor 61 is started reversely to drive the material belt 8 to retreat through the second guide groove 77, when the material belt 8 reaches the notch of the second guide groove 77, the second driving motor 71 is started to drive the material belt 8 to continue moving leftwards, the second guide groove 77 enters between two discs of a final material disc of the final material disc mechanism 10 to play a role in guiding, and the second guide groove 77 is just opposite to a material belt 8 limiting hole in the center of the final material disc, so that the tail end of the material belt 8 is just inserted into the material belt 8 limiting hole.

Then the finishing drive motor 102 of the finishing tray mechanism 10 is started to wind the material belt 8 on the finishing tray, and simultaneously the second guide groove 77 is retreated to the initial position so as to avoid interference with the material belt 8 on the tray; when the material belt 8 on the middle reverse disc is completely wound on the final disc, the system stops running and gives out sound alarm. The prior art of sound alarm is mature, and the embodiment can be applied.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

The SMD material sending machine is characterized by comprising a fixed rack, a feeding mechanism, a cutting mechanism, a counting mechanism, a middle plate reversing mechanism and a final material plate mechanism, wherein the feeding mechanism, the cutting mechanism, the counting mechanism and the middle plate reversing mechanism are sequentially arranged on the fixed rack;

the feeding mechanism provides the material area that has surface mounting device, warp counting mechanism count and backward conveying, and the material area through the count twines in the middle mechanism of falling a set, after the material area through the count reachs preset numerical value, shutdown mechanism cuts off the material area, counter mechanism reverse rotation will carry the material area through the count reverse conveying to twine in the material plate mechanism of ending.
2. The SMD dispenser of claim 1, wherein said SMD dispenser further comprises:

the first guide mechanism is arranged on the fixed rack, is arranged between the counting mechanism and the middle tray reversing mechanism, and is used for guiding the counted material belts to the middle tray reversing mechanism; and

and the second guide mechanism is arranged on the fixed rack, arranged between the end tray mechanism and the cutting mechanism and used for guiding the material belt reversely conveyed by the counting mechanism to the end tray mechanism.
3. The SMD dispenser as set forth in claim 2, wherein said first guide mechanism includes:

the first guide groove is used for guiding the material belt to the middle tray reversing mechanism;

the first bidirectional moving assembly is fixedly connected with the first guide groove and is used for driving the first guide groove to move left and right so that the first guide groove is close to the middle tray dumping mechanism or far away from the middle tray dumping mechanism;

the structure of the second guide mechanism is the same as that of the first guide mechanism.
4. The SMD dispenser of claim 3, wherein said first bi-directional movement assembly comprises:

the first sliding rail is fixedly connected with the fixed rack;

the first sliding block is connected with the first sliding rail in a sliding mode and is fixedly connected with the first guide groove;

the first rack is fixedly connected with the first sliding block;

the first driving gear is meshed with the first rack and is used for driving the first rack to move left and right;

the first driving motor is used for driving the first driving gear to rotate; the first sliding block drives the first guide groove to move left and right by means of the first driving motor.
5. The SMD feeder as claimed in claim 3, wherein said first guide groove has a first leading-in sharp mouth at an end thereof adjacent to said intermediate tray inverting mechanism, said intermediate tray inverting mechanism has a material-tape limiting hole corresponding to said leading-in sharp mouth, and the end of the counted material tape is inserted into said material-tape limiting hole under the guidance of said first leading-in sharp mouth.
6. The SMD dispenser of claim 2, wherein said first guide mechanism further comprises:

the first photoelectric switch is arranged on the fixed rack and used for collecting signals of a material belt transmitted to the direction of the middle tray-turning mechanism and transmitting the signals to the first guide mechanism;

the second guide mechanism further includes:

and the second photoelectric switch is arranged on the fixed rack and used for collecting signals of the material belt conveyed to the finishing disc mechanism and transmitting the signals to the second guide mechanism.
7. The SMD dispenser as set forth in claim 1, wherein said SMD dispenser further includes:

the material guiding body is fixed on the fixed rack and located on one side, close to the feeding mechanism, of the cutting mechanism, a feeding hole for a material belt to pass through is formed in the material guiding body, and the material belt provided by the feeding mechanism is conveyed to the cutting mechanism through the feeding hole.
8. The SMD dispenser as claimed in claim 7, wherein said conductor body is further provided with a guide hole for passing the counted tape in a reverse direction, said guide hole being located below said feed hole.
9. The SMD dispenser as claimed in claim 1, wherein said counting mechanism is provided at left and right sides thereof with front and rear guide grooves for guiding the straight transfer of the strip of material, respectively, said front and rear guide grooves being mounted on said fixed stand.
10. The SMD dispenser as set forth in claim 1, wherein said SMD dispenser further includes:

the touch screen with the programmable controller is arranged on the fixed rack, and the feeding mechanism, the cutting mechanism, the counting mechanism, the middle tray reversing mechanism and the end tray mechanism are all electrically connected with the programmable controller.