CN111204549A - Automatic production line for pressure sensors - Google Patents
Automatic production line for pressure sensors Download PDFInfo
- Publication number
- CN111204549A CN111204549A CN202010109489.1A CN202010109489A CN111204549A CN 111204549 A CN111204549 A CN 111204549A CN 202010109489 A CN202010109489 A CN 202010109489A CN 111204549 A CN111204549 A CN 111204549A
- Authority
- CN
- China
- Prior art keywords
- circuit board
- operating lever
- clamp
- rotating shaft
- maximum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 238000012545 processing Methods 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims description 69
- 230000000903 blocking effect Effects 0.000 claims description 29
- 230000002441 reversible effect Effects 0.000 claims description 27
- 239000011324 bead Substances 0.000 claims description 10
- 230000000670 limiting effect Effects 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 6
- 238000013519 translation Methods 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 9
- 230000007306 turnover Effects 0.000 abstract description 5
- 238000003754 machining Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/12—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising a series of individual load-carriers fixed, or normally fixed, relative to traction element
- B65G17/123—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising a series of individual load-carriers fixed, or normally fixed, relative to traction element arranged to keep the load-carriers horizontally during at least a part of the conveyor run
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/30—Details; Auxiliary devices
- B65G17/32—Individual load-carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/20—Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
- B65G21/22—Rails or the like engaging sliding elements or rollers attached to load-carriers or traction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
- B65G47/248—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles by turning over or inverting them
- B65G47/252—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles by turning over or inverting them about an axis substantially perpendicular to the conveying direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
- B65G2201/0214—Articles of special size, shape or weigh
- B65G2201/022—Flat
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention relates to an intelligent production line of sensors, in particular to an automatic production line of pressure sensors. The clamp is rotatably mounted on the base, and the clamp can selectively enable the front side of the circuit board or the back side of the circuit board to face upwards when rotating. The invention can realize the turnover of the circuit board by rotating the clamp, so as to respectively process the front and the back of the circuit board without the procedures of disassembling and reloading the circuit board, thereby simplifying the production flow, saving the processing time and improving the productivity.
Description
Technical Field
The invention relates to an intelligent production line of sensors, in particular to an automatic production line of pressure sensors.
Background
The pressure sensor is the most common sensor in industrial practice, is widely applied to various industrial automatic control environments, and relates to a plurality of industries such as water conservancy and hydropower, railway traffic, intelligent buildings, production automatic control, aerospace, military industry, petrochemical industry, oil wells, electric power, ships, machine tools, pipelines and the like. For example, in the pressure sensor disclosed in chinese patent application publication CN110501110A, the front and back of the circuit board are both provided with MEMS sensing elements, and the front and back of the circuit board need to be processed during the production process. In the conventional production line, after the front side of the circuit board is processed, the circuit board needs to be detached from the clamp and turned over so that the back side of the circuit board faces upward, and then the circuit board is reloaded in the clamp so as to process the back side of the circuit board. This production process not only needs to expend time, influences production efficiency, and the operation of dismouting circuit board is difficult to adopt mechanical automatic equipment to accomplish moreover, has increased the difficult way of intelligent realization.
Disclosure of Invention
The invention aims to provide an automatic production line of a pressure sensor, which comprises a conveying line, a base and a clamp, wherein the base is arranged on the conveying line and conveyed by the conveying line, the clamp is used for clamping a circuit board to be processed, the clamp is rotatably arranged on the base, and the front side of the circuit board or the back side of the circuit board is alternatively upwards when the clamp rotates.
The invention can realize the turnover of the circuit board by rotating the clamp, so as to respectively process the front and the back of the circuit board without the procedures of disassembling and reloading the circuit board, thereby simplifying the production flow, saving the processing time and improving the productivity.
Drawings
FIG. 1 shows a schematic structural diagram of the present invention;
FIG. 2 shows a top view of the base, clamp and circuit board loaded on the clamp of the present invention;
FIG. 3 shows an enlarged view of part A of FIG. 2;
FIG. 4 shows a perspective view of the base, clamp and circuit board loaded on the clamp of the present invention;
FIG. 5 shows an exploded perspective view of the base, clamp and circuit board loaded on the clamp of the present invention;
FIG. 6 shows a perspective view of the fixture of the present invention and a circuit board loaded on the fixture;
FIG. 7 shows a perspective view of another angle of the fixture of the present invention and a circuit board loaded on the fixture;
FIG. 8 shows a cross-sectional view B-B of FIG. 6;
FIG. 9 shows an enlarged partial view of portion C of FIG. 8;
FIG. 10 shows an enlarged view of the portion D of FIG. 8;
FIG. 11 shows a perspective view of the clip separated from the circuit board;
FIG. 12 is a schematic view showing the wiring board hidden from view in FIG. 6;
fig. 13 is a schematic view showing the wiring board hidden from view in fig. 7;
FIG. 14 shows an exploded perspective view of the clamp of the present invention;
FIG. 15 shows an exploded perspective view of another angle of the clamp of the present invention;
FIG. 16 shows a top view of the clip of the present invention with the front bezel portion of the frame hidden and all of the positive stops entering the receiving cavity;
FIG. 17 is a schematic view showing the front operating lever rotated to the forward rotation maximum position on the basis of FIG. 16 after all the front stoppers are removed from the receiving cavities;
FIG. 18 shows a bottom view of the clip of the present invention with the back frame portion of the frame hidden and all back stops entering the receiving cavity;
FIG. 19 is a schematic view showing the back side lever rotated to the forward rotation maximum position to release all the back side stoppers from the receiving cavities on the basis of FIG. 18;
FIG. 20 is a top plan view of the base, clamp, circuit board loaded on the clamp, and tumble drive mechanism of the present invention with the dog clutch disengaged;
FIG. 21 shows a front view on the basis of FIG. 20;
FIG. 22 shows a schematic diagram of the motor driven translation to shift the dog clutch from a disengaged state to an engaged state based on FIG. 21;
FIG. 23 shows a top view of the base, clamp, circuit board loaded on the clamp, and rotation inhibiting mechanism of the present invention with the piston rod of the cylinder withdrawn from the receptacle;
fig. 24 is a schematic view showing the cylinder with the piston rod inserted into the insertion hole on the basis of fig. 23;
FIG. 25 is a top view of the base, the clamp, the circuit board loaded on the clamp, and the moving cam of the present invention, wherein the clamp has not reached the circuit board loading station;
FIG. 26 shows a front view on the basis of FIG. 25;
fig. 27 is a schematic view showing that the gripper is urged in the conveying direction of the conveying line on the basis of fig. 25 and the roller of the one of the front side operating lever and the rear side operating lever which faces upward is gradually brought close to the moving cam;
FIG. 28 shows an enlarged view of portion E of FIG. 27;
fig. 29 to 31 are schematic views showing the driving of the jig in the conveying direction of the conveyor line and finally to the board loading station on the basis of fig. 28, in which fig. 29 shows the roller in contact with the reverse rotation maximum position holding section, fig. 30 shows the roller in contact with the inclined transition section, and fig. 31 shows the roller in contact with the forward rotation maximum position holding section while the jig arrives at the board loading station;
FIG. 32 shows a top view of the moving cam of the present invention;
fig. 33 shows a perspective view of the moving cam of the present invention.
Reference numerals:
10 conveyor lines, 101 slides, 102 rails, 103 conveyor belts, 104 spring top beads, 105 spring top bead beads;
20 clamp, 201 pin shaft, 202 frame, 203 accommodating cavity, 204 front frame part, 205 middle frame part, 206 back frame part, 207 first blocking surface, 208 second blocking surface, 209 third blocking surface, 210 fourth blocking surface, 211 concave groove and 212 jack;
30 circuit boards, 301 front sides of the circuit boards and 302 back sides of the circuit boards;
401 front joystick, 402 front chain, 403 front sprocket, 404 front dog, 405 front torsion spring;
501 back lever, 502 back chain, 503 back sprocket, 504 back stop, 505 back torsion spring;
60 motors, 601 half clutches and 602 guide mechanisms;
piston rods of 70 cylinders and 701 cylinders;
80 rollers;
90 moving cam, 901 reverse rotation maximum position holding section, 902 inclined transition section, 903 forward rotation maximum position holding section.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
An automatic production line for pressure sensors, as shown in fig. 1, comprises a conveyor line 10, a base mounted on the conveyor line 10 and conveyed by the conveyor line 10, and a clamp 20 for clamping a circuit board to be processed, wherein the clamp 20 is rotatably mounted on the base, and the clamp 20 is rotated to selectively make the front surface 301 of the circuit board or the back surface 302 of the circuit board face upward.
According to the technical scheme, the circuit board can be turned by rotating the clamp, so that the front side and the back side of the circuit board can be conveniently processed respectively, the processes of disassembling and reloading the circuit board are not needed, the production flow can be simplified, the processing time is saved, and the production efficiency is improved.
As shown in fig. 2 to 19, the base includes two sliders 101; as shown in fig. 1, in the present embodiment, the conveyor line 10 includes two parallel guide rails 102, each slide carriage 101 is slidably mounted on one guide rail 102, and each guide rail 102 is in a track shape to realize a circular operation. A sliding driving mechanism for driving the sliding base 101 to move may be provided in the inner guide rail 102. The slip drive mechanism comprises a mesh-type belt 103, the carriage 101 being fixed relative to the belt 103, whereby the carriage 101 is moved when the belt 103 is running.
The clamp 20 is provided with two pin shafts 201, the clamp 20 rotates around the axis of the pin shaft 201, the axis of the pin shaft 201 is parallel to the front surface 301 of the circuit board clamped on the clamp 20, in this embodiment, the two pin shafts 201 are separated from two sides of the clamp 20, the axes of the two pin shafts 201 are coincident, and each pin shaft 201 is rotatably mounted on a sliding seat 101 through a bearing;
the clamp 20 comprises a frame 202, wherein the frame 202 encloses a containing cavity 203 for containing the circuit board 30;
a front blocking mechanism and a back blocking mechanism are arranged on the frame 202;
the front blocking mechanism includes a front operating lever 401, a front chain 402 and a plurality of front rotating assemblies spaced around the receiving cavity 203, the front chain 402 being shown in phantom in fig. 16 and 17;
each front rotating assembly comprises a front rotating shaft 403, a front chain wheel 404 and a front stop block 405, the front rotating shaft 403 is rotatably mounted on the frame 202, the front chain wheel 404 and the front stop block 405 are fixed in the front rotating shaft 403, the front stop block 405 extends along the radial direction of the front rotating shaft 403, and the front stop block 405 can selectively enter or leave the accommodating cavity 203 to block or allow the circuit board 30 to enter or leave the accommodating cavity 203 when the front rotating shaft 403 rotates;
the front chain 402 is meshed with all front chain wheels 404 to drive all front rotating shafts 403 to synchronously rotate, the axes of all the front rotating shafts 403 are parallel to each other, one end of the front operating lever 401 is a fixed end, the other end of the front operating lever is a free end, the fixed end of the front operating lever 401 is fixed on one front rotating shaft 403, the front operating lever 401 extends along the radial direction of the front rotating shaft 403, in the embodiment, the front operating lever is driven to rotate by acting on the free end of the front operating lever, the front rotating shaft fixed with the front operating lever can rotate along with the front operating lever, and the other front rotating shafts are driven to synchronously rotate by the meshing transmission of the front chain and each front chain wheel;
the back blocking mechanism comprises a back operating lever 501, a back chain 502 and a plurality of back rotating assemblies spaced around the receiving cavity 203, the back chain 502 being shown in phantom in fig. 18 and 19; in this embodiment, the frame 202 is in a square frame shape, and a set of front rotating components and a set of back rotating components are disposed at four corners of the frame, that is, at least four sets of the front rotating components and the back rotating components are disposed at the four corners of the frame. The front rotary assembly and the back rotary assembly are six groups;
each back rotating assembly comprises a back rotating shaft 503, a back sprocket 504 and a back stopper 505, the back rotating shaft 503 is rotatably mounted on the frame 202, the back sprocket 504 and the back stopper 505 are fixed in the back rotating shaft 503, the back stopper 505 extends along the radial direction of the back rotating shaft 503, and the back stopper 505 selectively enters or leaves the accommodating cavity 203 to block or allow the circuit board 30 to enter or leave the accommodating cavity 203 when the back rotating shaft 503 rotates;
the back chain 502 is meshed with all back chain wheels 504 to make each back rotating shaft 503 rotate synchronously, the axes of all back rotating shafts 503 are parallel to each other, one end of the back operating lever 501 is a fixed end, the other end is a free end, the fixed end of the back operating lever 501 is fixed on one back rotating shaft 503, the back operating lever 501 extends along the radial direction of the back rotating shaft 503, in the embodiment, the back operating lever is driven to rotate by acting on the free end of the back operating lever, the back rotating shaft fixed with the back operating lever rotates along with the back operating lever, and the other back rotating shafts are driven to rotate synchronously by the meshed transmission of the back chain and each back chain wheel;
all the front stoppers 405 are at the same height to form a front stopper layer, and all the back stoppers 505 are at the same height to form a back stopper layer, and the distance between the front stopper layer and the back stopper layer is equal to the thickness of the circuit board 30, so that the circuit board 30 entering the housing chamber 203 is clamped between all the front stoppers 405 entering the housing chamber 203 and all the back stoppers 505 entering the housing chamber 203.
The circuit board is realized clamping by the fixture disclosed by the technical scheme through setting the front blocking mechanism and the back blocking mechanism, and the front blocking mechanism and the back blocking mechanism can independently abut against and loosen the circuit board, so that the circuit board can be conveniently detached and loaded whether the front blocking mechanism faces upwards or the back blocking machine faces upwards. Each front rotating assembly and each back rotating assembly respectively adopt chain transmission to realize that each front stop dog and each back stop dog can synchronous motion, simple structure, the operation of being convenient for. In this embodiment, the front lever and the back lever may be driven to rotate manually or mechanically automatically, so as to drive the front block and the back block to rotate.
As shown in fig. 9 and 10, each front stopper 405 entering the housing cavity 203 abuts against one of the front surface 301 and the back surface 302 of the circuit board entering the housing cavity, and each back stopper 505 entering the housing cavity 203 abuts against the other of the front surface 301 and the back surface 302 of the circuit board entering the housing cavity 203.
In this embodiment, the front sprocket and the front stopper of each front rotating assembly are integrated, and the back sprocket and the back stopper of each back rotating assembly are integrated, and this technical scheme can save the inner space of the fixture.
In the present embodiment, the frame 202 is composed of a front frame portion 204, a middle frame portion 205, and a rear frame portion 206.
The front frame cover is arranged on the front surface of the middle frame. In each of the front rotary shafts except the front rotary shaft fixed to the front joystick, the other end of the front rotary shaft is rotatably mounted on the middle frame portion, and one end of the front rotary shaft is rotatably mounted on the front frame portion. The other end of the front rotating shaft fixed with the front operating lever is rotatably arranged on the middle frame part, one end of the front rotating shaft fixed with the front operating lever penetrates through the front frame part and extends out of the front frame part, and the fixed end of the front operating lever is actually fixed at one end of the front rotating shaft penetrating through the front frame part and extending out of the front frame part. The front control lever is driven to rotate by acting on the free end of the front control lever, the front rotating shaft fixed with the front control lever rotates along with the front control lever, and the other front rotating shafts are driven to synchronously rotate by the meshing transmission of the front chain and each front chain wheel. The front frame portion can cover the front sprocket and the front chain.
The back frame cover is arranged on the back of the middle frame. In each of the other back rotary shafts except the back rotary shaft fixed to the back operation lever, one end of the back rotary shaft is rotatably mounted on the middle frame portion, and the other end of the back rotary shaft is rotatably mounted on the back frame portion. One end of the back rotating shaft fixed with the back operating lever is rotatably arranged on the middle frame part, the other end of the back rotating shaft fixed with the back operating lever penetrates through the back frame part and extends out of the back frame part, and the fixed end of the back operating lever is actually fixed at the other end of the back rotating shaft penetrating through the back frame part and extending out of the back frame part. The back operating lever is driven to rotate by acting on the free end of the back operating lever, the back rotating shaft fixed with the back operating lever rotates along with the back operating lever, and the rest back rotating shafts are driven to synchronously rotate by the meshing transmission of the back chain and each back chain wheel. The rear frame portion can cover the rear sprocket and the rear chain.
A front limiting mechanism for rotating the front joystick 401 back and forth between a maximum forward rotation position and a maximum reverse rotation position is provided on the frame 202, wherein fig. 16 shows the front joystick 401 in the maximum reverse rotation position, and fig. 17 shows the front joystick 401 in the maximum forward rotation position;
all the front stoppers 405 leave the accommodating cavity 203 when the front joystick 401 is in the forward rotation maximum position, and all the front stoppers 405 enter the accommodating cavity 203 when the front joystick 401 is in the reverse rotation maximum position;
a front elastic reset mechanism which enables the front control lever 401 to have the tendency of returning to the maximum reversal position is arranged between the frame 202 and the front control lever 401;
the frame 202 is further provided with a back limiting mechanism for rotating the back joystick 501 back and forth between a maximum forward rotation position and a maximum reverse rotation position, wherein fig. 18 shows the back joystick 501 at the maximum reverse rotation position, and fig. 19 shows the back joystick 501 at the maximum forward rotation position;
all the back stoppers 505 leave the accommodating chamber 203 when the back lever 501 is at the forward rotation maximum position, and all the back stoppers 505 enter the accommodating chamber 203 when the back lever 501 is at the reverse rotation maximum position;
a back elastic return mechanism is provided between the frame 202 and the back lever 501 to return the back lever 501 to the maximum reverse position. This technical scheme restricts the rotation range of front control rod and back control rod through setting up front stop gear and back stop gear to in operation avoids misoperation. The front elastic reset mechanism and the back elastic reset mechanism are arranged to enable the front operating rod and the back operating rod to reset after the acting force applied to the front operating rod and the back operating rod is removed.
In this embodiment, the front limiting mechanism rotates the front joystick within a predetermined angular range, and the back limiting mechanism rotates the back joystick within a predetermined angular range.
The front limiting mechanism comprises a first blocking surface 207 and a second blocking surface 208 which are arranged in the rotating direction of a front control lever 401, the front control lever 401 is in the maximum forward rotation position when abutting against the first blocking surface 207, and the front control lever 401 is in the maximum reverse rotation position when abutting against the second blocking surface 208;
the back limiting mechanism comprises a third blocking surface 209 and a fourth blocking surface 210 which are arranged in the rotating direction of the back control lever 501, the back control lever 501 is at the maximum forward rotation position when abutting against the third blocking surface 209, and the back control lever 501 is at the maximum reverse rotation position when abutting against the fourth blocking surface 210;
the front elastic reset mechanism includes a front torsion spring 406 sleeved outside the front rotating shaft 403 fixed to the front operating lever 401, one elastic leg of the front torsion spring 406 is fixed to the frame 202 (especially to the front frame 204), and the other elastic leg of the front torsion spring 406 is fixed to the front operating lever 401;
the back elastic return mechanism includes a back torsion spring 506 sleeved outside a back rotating shaft 503 fixed to the back operating lever 501, one elastic leg of the back torsion spring 506 is fixed to the frame 202 (especially, to the back frame portion 206), and the other elastic leg of the back torsion spring 506 is fixed to the back operating lever 501.
The base is provided with a spring top bead 104, in this embodiment, the spring top bead 104 is fixedly mounted in the base by a sliding seat 101;
the frame 202 is provided with a recess 211 into which the bead 105 of the spring loaded bead is recessed.
This technical scheme can restrict anchor clamps free rotation and allow anchor clamps to force to rotate through setting up spring top pearl, reduces the risk that anchor clamps accidentally deflect in the transportation process along the transfer chain, improves the reliability and the stability of anchor clamps work.
As shown in fig. 20 to 22, the transfer line has a circuit board inverting station provided with an inverting drive mechanism for driving the jig 20 to rotate to invert the circuit board 30 held on the jig 20.
This technical scheme is through setting up upset actuating mechanism in order not to need the manual work to rotate, improves the degree of automation of production line, saves the labour.
The tumble drive mechanism includes a motor 60;
a jaw clutch is arranged between the output shaft of the motor 60 and the pin 201, one half clutch 601 of the jaw clutch is fixed on the output shaft of the motor 60, and the other half clutch 601 is fixed on the pin 201;
the axis of the pin shaft 201 is overlapped with the axis of the output shaft of the motor 60 when the clamp 20 reaches the circuit board overturning station;
the circuit board overturning station is also provided with a translation driving mechanism (not shown in the figure) for driving the motor 60 to translate along the axial direction of an output shaft of the motor so as to enable the jaw clutch to be selectively separated or engaged.
In this embodiment, the circuit board turnover station is further provided with a guide mechanism 602 for guiding the motor to translate, and the translation driving mechanism may include a driving cylinder, and the motor is pushed by a piston rod of the driving cylinder.
In this embodiment, the half clutch fixed on the output shaft of the motor selectively approaches or departs from the half clutch fixed on the pin shaft when the motor translates along the axial direction of the output shaft of the motor, so as to realize the engagement or disengagement of the jaw clutch. In this embodiment, the torque force transmitted to the clamp by the motor can overcome the acting force of the spring ejecting ball, so that the clamp rotates.
The turnover driving mechanism has reasonable design, simple structure and convenient implementation. The jaw clutch is adopted to realize engagement and disengagement, the jaw clutch is engaged when the clamp needs to be turned over so as to transmit power, and the jaw clutch is disengaged after turning over of the clamp is completed so as to avoid blocking the base and the clamp to continue to advance along the conveying direction of the conveying line.
The working process of the turnover driving mechanism is as follows:
as shown in fig. 20 and 21, the base and the clamp arrive at the circuit board flipping station with the dog clutch disengaged. As shown in fig. 22, the motor is driven to move close to the clamp by the translation driving mechanism, the half clutch fixed on the output shaft of the motor also moves close to the half clutch fixed on the pin shaft, and finally the two half clutches are engaged. After the jaw clutch is engaged, the motor is energized to rotate the clamp, and in this embodiment, the motor is configured to rotate the clamp 180 degrees at a time. After the clamp finishes 180-degree rotation, the circuit board can be turned over, and then the motor is driven to move away from the clamp through the translation driving mechanism, so that the jaw clutch can be separated.
As shown in fig. 23 and 24, the transfer line 10 also has a plurality of board front surface processing stations and a plurality of board rear surface processing stations;
and rotation prohibiting mechanisms for selectively prohibiting or allowing the clamp 20 to rotate are respectively arranged at part or all of the circuit board front processing stations and part or all of the circuit board back processing stations.
According to the technical scheme, the rotation forbidding mechanism is arranged, so that the phenomenon that the machining quality is influenced due to accidental rotation of the clamp in the machining process of the front surface and the back surface of the circuit board can be avoided.
The rotation prohibiting mechanism includes a cylinder 70;
the clamp 20 is provided with a jack 212, the axis of the jack 212 is parallel to the axis of the pin 201, and the axis of the jack 212 is deviated from the axis of the pin 201;
the axis of the jack 212 is overlapped with the axis of the piston rod 701 of the air cylinder when the clamp 20 reaches the station provided with the rotation prohibiting mechanism;
the piston rod 701 of the air cylinder is inserted into or pulled out of the insertion hole 212 to prohibit or allow the rotation of the jig 20.
The rotation forbidding mechanism disclosed by the technical scheme is simple in structure and convenient to implement.
The operation process of the rotation forbidding mechanism is as follows:
as shown in fig. 23, the base and the clamp reach the station where the rotation inhibiting mechanism is provided, and the piston rod of the air cylinder is pulled out of the jack.
As shown in fig. 24, the cylinder actuates its piston rod into the receptacle to effect locking of the clamp. After the current station machining procedure is completed, the cylinder drives the piston rod of the cylinder to be pulled out of the jack, and then the clamp can be unlocked.
As shown in fig. 25 to 33, the conveyor line 10 also has a board loading station;
the circuit board loading station is provided with a control lever rotating mechanism which drives one of the front control lever 401 and the back control lever 501 to rotate from the maximum reverse rotation position to the maximum forward rotation position when the clamp 20 reaches the circuit board loading station.
This technical scheme drives the mechanism through setting up the control rod and rotates in order not to need the manual work to rotate, improves the degree of automation of production line, saves the labour.
The frame 202 has two long frame edges parallel to the conveying direction of the conveying line 10, the two pin shafts are respectively fixed on one long frame edge, and the jack is arranged on one long frame edge of the frame; (ii) a
The front rotating shaft 403 fixed with the front operating lever 401 and the back rotating shaft 503 fixed with the back operating lever 501 are both positioned at the same long frame edge, and the axis of the front rotating shaft fixed with the front operating lever and the axis of the back rotating shaft fixed with the back operating lever are both vertically intersected with the axis of the pin shaft;
the length direction of the front operating lever 401 is perpendicular to the conveying direction of the conveying line 10 when the front operating lever is at the maximum reversal position;
the length direction of the back operating lever 501 is perpendicular to the conveying direction of the conveying line 10 when the back operating lever is at the maximum reverse rotation position;
the free end of the front operating lever 401 and the free end of the back operating lever 501 are both provided with a roller 80;
the lever drive mechanism includes a moving cam 90, the moving cam 90 having a cam profile for contacting the roller 80 of the free end of the upward facing one of the front lever 401 and the rear lever 501;
the cam profile comprises a reverse rotation maximum position holding section 901, an inclined transition section 902 and a forward rotation maximum position holding section 903 which are sequentially connected along the conveying direction of the conveying line;
the reverse rotation maximum position holding section 901 and the forward rotation maximum position holding section 903 are straight line sections parallel to the conveying direction of the conveyor line 10;
distances from a rotation center O of the upward one of the front joystick and the rear joystick to the reverse rotation maximum position holding section and the forward rotation maximum position holding section are L1 and L2, respectively, wherein L1> L2;
in this embodiment, the rotation center of the front joystick is located on the axis of the front rotating shaft fixed to the front joystick, and the rotation center of the back joystick is located on the axis of the back rotating shaft fixed to the back joystick;
the upward one of the front joystick 401 and the rear joystick 501 is at the reversal maximum position when the roller 80 thereof is in contact with the reversal maximum position holding section 901;
the upward one of the front joystick 401 and the rear joystick 501 is at the forward rotation maximum position when the roller 80 thereof is in contact with the forward rotation maximum position holding section 903.
The operating rod driving and rotating mechanism disclosed by the technical scheme has a simple structure, does not need to use electric or pneumatic equipment, and can reduce the production cost.
In the process that the base and the clamp move towards a circuit board loading station along the conveying direction of the conveying line, the upward roller of one of the front operating lever and the back operating lever is sequentially contacted with the reverse rotation maximum position holding section, the inclined transition section and the forward rotation maximum position holding section. And when the base and the clamp reach a circuit board loading station, the upward roller of one of the front operating lever and the back operating lever is contacted with the forward rotation maximum position holding section.
The operating process of the operating lever driving and rotating mechanism is as follows:
as shown in fig. 28, the gripper moves in the direction of the feed line, and the roller of the upward one of the front and rear levers does not contact the moving cam. As shown in fig. 29, the gripper continues to move in the direction of the feed line, with the roller first contacting the counter-rotating maximum position holding segment of the moving cam. As shown in fig. 30, the gripper continues to move in the direction of the feed line, the roller enters from the maximum reverse position holding section of the moving cam and contacts the inclined transition section, and the upward one of the front operating lever and the rear operating lever rotates from the maximum reverse position to the maximum forward position during the rolling of the roller along the inclined transition section. As shown in fig. 31, the jig continues to move in the direction of the conveyor line, the roller enters from the inclined transition section of the moving cam and contacts the forward rotation maximum position holding section, and the upward one of the front operating lever and the back operating lever rotates to the forward rotation maximum position, at which time the jig reaches the board loading station.
After the clamp reaches a circuit board loading station, the circuit board is placed on the clamp, the front side of the circuit board faces, the clamp is driven to move along the conveying line direction of the conveying line, and when the roller wheel is separated from the forward rotation maximum position holding section, the upward front control rod and the upward back control rod are reset under the action of the front elastic reset mechanism or the back elastic reset mechanism and rotate from the forward rotation maximum position to the reverse rotation maximum position. The automatic feeding device is simple in structure, convenient and fast to achieve and capable of improving the automation degree.
In this embodiment, the moving cam is fixed relative to the guide rail.
In this embodiment, the back blocking mechanism rotates 180 degrees around the axis of the pin shaft and then coincides with the front blocking mechanism. The technical scheme can realize that the front operating lever and the back operating lever can be forced to rotate by the same moving cam when facing upwards, and the front operating lever and the back operating lever do not need to be respectively provided with a moving cam.
In this embodiment, the conveying line is further provided with a circuit board unloading station, and the circuit board unloading station is also provided with an operating lever driving mechanism which is the same as that of the circuit board loading station.
The circuit board loading station, the circuit board front processing stations, the circuit board overturning station, the circuit board back processing stations and the circuit board unloading station are sequentially arranged along the conveying direction of the conveying line.
Claims (10)
1. The utility model provides a pressure sensor automatic production line, includes the transfer chain, install on the transfer chain and by the base of transfer chain transport and be used for the anchor clamps of the circuit board of centre gripping treating processing which characterized in that: the clamp is rotatably mounted on the base, and the clamp can selectively enable the front surface of the circuit board or the back surface of the circuit board to face upwards when rotating.
2. The automatic production line of pressure sensors according to claim 1, characterized in that: the conveying line is provided with a circuit board overturning station, and an overturning driving mechanism for driving the clamp to rotate is arranged at the circuit board overturning station.
3. The automatic production line of pressure sensors according to claim 2, characterized in that:
the clamp is provided with a pin shaft and rotates around the axis of the pin shaft;
the overturning driving mechanism comprises a motor;
a jaw clutch is arranged between an output shaft of the motor and the pin shaft, one half clutch of the jaw clutch is fixed on the output shaft of the motor, and the other half clutch is fixed on the pin shaft;
the axis of the pin shaft is superposed with the axis of the output shaft of the motor when the clamp reaches the circuit board overturning station;
and a translation driving mechanism for driving the motor to translate along the axial direction of an output shaft of the motor so as to enable the jaw clutch to be selectively separated or connected is further arranged at the circuit board overturning station.
4. The automatic production line of pressure sensors according to claim 3, characterized in that:
the conveying line is also provided with a plurality of circuit board front processing stations and a plurality of circuit board back processing stations;
and rotation prohibiting mechanisms for selectively prohibiting or allowing the clamp to rotate are respectively arranged at the front processing station of part or all of the circuit boards and at the back processing station of part or all of the circuit boards.
5. The automatic production line of pressure sensors according to claim 4, characterized in that:
the rotation prohibiting mechanism comprises a cylinder;
the clamp is provided with a jack, the axis of the jack is parallel to the axis of the pin shaft, and the axis of the jack deviates from the axis of the pin shaft;
the axis of the jack is superposed with the axis of the piston rod of the cylinder when the clamp reaches the station provided with the rotation prohibiting mechanism;
the piston rod of the air cylinder is inserted into or pulled out of the jack, and the clamp is forbidden or allowed to rotate.
6. The automatic production line of pressure sensors according to claim 5, characterized in that:
the clamp comprises a frame, wherein the frame encloses an accommodating cavity for accommodating a circuit board;
the frame is provided with a front blocking mechanism and a back blocking mechanism;
the front blocking mechanism comprises a front operating lever, a front chain and a plurality of front rotating assemblies which are distributed around the accommodating cavity at intervals;
each front rotating assembly comprises a front rotating shaft, a front chain wheel and a front stop block, the front rotating shaft is rotatably arranged on the frame, the front chain wheel and the front stop block are fixed in the front rotating shaft, the front stop block extends along the radial direction of the front rotating shaft, and the front stop block can selectively enter or leave the accommodating cavity when the front rotating shaft rotates so as to block or allow the circuit board to enter or exit the accommodating cavity;
the front chain is in meshed transmission with all front chain wheels to enable all front rotating shafts to synchronously rotate, the axes of all the front rotating shafts are parallel to each other, one end of the front control lever is a fixed end, the other end of the front control lever is a free end, the fixed end of the front control lever is fixed on one front rotating shaft, and the front control lever extends along the radial direction of the front rotating shaft;
the back blocking mechanism comprises a back operating lever, a back chain and a plurality of back rotating assemblies which are distributed around the accommodating cavity at intervals;
each back rotating assembly comprises a back rotating shaft, a back chain wheel and a back stop block, the back rotating shaft is rotatably arranged on the frame, the back chain wheel and the back stop block are fixed in the back rotating shaft, the back stop block extends along the radial direction of the back rotating shaft, and the back stop block can selectively enter or leave the accommodating cavity to block or allow the circuit board to enter or leave the accommodating cavity when the back rotating shaft rotates;
the back chain is meshed with all back chain wheels for transmission so as to enable all back rotating shafts to synchronously rotate, the axes of all the back rotating shafts are parallel to each other, one end of the back operating lever is a fixed end, the other end of the back operating lever is a free end, the fixed end of the back operating lever is fixed on one of the back rotating shafts, and the back operating lever extends along the radial direction of the back rotating shaft;
all the front stoppers are at the same height to form a front stopper layer, all the back stoppers are at the same height to form a back stopper layer, and the distance between the front stopper layer and the back stopper layer is equal to the thickness of the circuit board, so that the circuit board entering the accommodating cavity is clamped between all the front stoppers entering the accommodating cavity and all the back stoppers entering the accommodating cavity.
7. The automatic production line of pressure sensors according to claim 6, characterized in that:
the frame is provided with a front limiting mechanism which enables the front control rod to rotate back and forth between a forward rotation maximum position and a reverse rotation maximum position;
all the front check blocks leave the accommodating cavity when the front control lever is at the maximum forward rotation position, and all the front check blocks enter the accommodating cavity when the front control lever is at the maximum reverse rotation position;
a front elastic reset mechanism which leads the front control lever to have the trend of returning to the maximum reversal position is arranged between the frame and the front control lever;
the frame is also provided with a back limiting mechanism which enables the back operating lever to rotate back and forth between a forward rotation maximum position and a reverse rotation maximum position;
all the back side stop blocks leave the accommodating cavity when the back side operating lever is at the maximum forward rotation position, and all the back side stop blocks enter the accommodating cavity when the back side operating lever is at the maximum reverse rotation position;
a back elastic reset mechanism which enables the back operating lever to have the tendency of returning to the maximum reversal position is arranged between the frame and the back operating lever.
8. The automatic production line of pressure sensors according to claim 7, characterized in that:
the conveying line is also provided with a circuit board loading station;
the circuit board loading station is provided with a control lever driving mechanism which drives one of the front control lever and the back control lever to rotate from the maximum reverse rotation position to the maximum forward rotation position when the clamp reaches the circuit board loading station.
9. The automatic production line of pressure sensors according to claim 8, characterized in that:
the frame is provided with two long frame edges parallel to the conveying direction of the conveying line;
the front rotating shaft fixed with the front operating lever and the back rotating shaft fixed with the back operating lever are both positioned at the same long frame edge;
the length direction of the front operating lever is vertical to the conveying direction of the conveying line when the front operating lever is at the maximum reversal position;
the length direction of the back operating lever is vertical to the conveying direction of the conveying line when the back operating lever is at the maximum reversal position;
the free end of the front operating lever and the free end of the back operating lever are both provided with a roller;
the lever drive mechanism includes a moving cam having a cam profile for contacting a roller at a free end of an upwardly facing one of the front and rear levers;
the cam profile comprises a reverse rotation maximum position holding section, an inclined transition section and a forward rotation maximum position holding section which are sequentially connected along the conveying direction of the conveying line;
the reverse rotation maximum position holding section and the forward rotation maximum position holding section are straight line sections parallel to the conveying direction of the conveying line;
the upward one of the front operating lever and the back operating lever is at a maximum reversal position when the roller thereof is in contact with the maximum reversal position holding section;
the upward one of the front joystick and the back joystick is at the forward rotation maximum position when the roller thereof is in contact with the forward rotation maximum position holding section.
10. The automatic production line of pressure sensors according to claim 9, characterized in that:
the base is provided with a spring top bead;
the frame is provided with a dimple into which a bead of the spring top bead is sunk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010109489.1A CN111204549B (en) | 2020-02-22 | 2020-02-22 | Automatic production line for pressure sensors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010109489.1A CN111204549B (en) | 2020-02-22 | 2020-02-22 | Automatic production line for pressure sensors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111204549A true CN111204549A (en) | 2020-05-29 |
| CN111204549B CN111204549B (en) | 2020-10-27 |
Family
ID=70784877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010109489.1A Active CN111204549B (en) | 2020-02-22 | 2020-02-22 | Automatic production line for pressure sensors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111204549B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114345679A (en) * | 2021-04-23 | 2022-04-15 | 曾祥秀 | Combined screening type conveying system for rice |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04272012A (en) * | 1991-02-27 | 1992-09-28 | Mazda Motor Corp | Conveyor device of work and conveying method |
| US5749453A (en) * | 1995-03-13 | 1998-05-12 | Fps Food Processing Systems B.V. | Apparatus for orienting eggs on a second conveyor with their points to one side |
| CN102874585A (en) * | 2012-10-09 | 2013-01-16 | 广东新劲刚新材料科技股份有限公司 | Ceramic tile flip-over method and ceramic tile flip-over device |
| CN207652788U (en) * | 2017-12-22 | 2018-07-24 | 深圳市奔强电路有限公司 | A kind of wiring board localization tool |
| CN209905714U (en) * | 2019-05-15 | 2020-01-07 | 格林莱特实业（苏州）有限公司 | Tablet centre gripping and transfer device |
| CN110790020A (en) * | 2019-12-12 | 2020-02-14 | 申科谱自动化科技（珠海）有限公司 | Correction receiving mechanism and ultra-thin type multi-compatibility receiving flying machine |
-
2020
- 2020-02-22 CN CN202010109489.1A patent/CN111204549B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04272012A (en) * | 1991-02-27 | 1992-09-28 | Mazda Motor Corp | Conveyor device of work and conveying method |
| US5749453A (en) * | 1995-03-13 | 1998-05-12 | Fps Food Processing Systems B.V. | Apparatus for orienting eggs on a second conveyor with their points to one side |
| CN102874585A (en) * | 2012-10-09 | 2013-01-16 | 广东新劲刚新材料科技股份有限公司 | Ceramic tile flip-over method and ceramic tile flip-over device |
| CN207652788U (en) * | 2017-12-22 | 2018-07-24 | 深圳市奔强电路有限公司 | A kind of wiring board localization tool |
| CN209905714U (en) * | 2019-05-15 | 2020-01-07 | 格林莱特实业（苏州）有限公司 | Tablet centre gripping and transfer device |
| CN110790020A (en) * | 2019-12-12 | 2020-02-14 | 申科谱自动化科技（珠海）有限公司 | Correction receiving mechanism and ultra-thin type multi-compatibility receiving flying machine |
Non-Patent Citations (1)
| Title |
|---|
| 刘红星等: "《钻工工夹器具应用实例》", 30 April 2014 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114345679A (en) * | 2021-04-23 | 2022-04-15 | 曾祥秀 | Combined screening type conveying system for rice |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111204549B (en) | 2020-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111204548A (en) | Clamp for clamping circuit board | |
| CN214641666U (en) | Automatic assembling machine for drill chuck | |
| US3073024A (en) | Metal working machine | |
| CN110027837B (en) | Engine cylinder cover overturning machine and control method thereof | |
| CN111204549B (en) | Automatic production line for pressure sensors | |
| US3805942A (en) | Selective synchronous non-synchronous transfer machine | |
| KR890003311B1 (en) | Automatic pallet changer | |
| CN110181431A (en) | A kind of automatic dismounting jig of container hold bottom lock | |
| CN210365768U (en) | Product positioning and overturning equipment | |
| CN219581982U (en) | Double-station switching laser marking device | |
| CN115446607B (en) | Comprehensive processing device for hole sites of aluminum alloy profiles | |
| CN114290064B (en) | Automatic drilling of cylinder block and turn-over transmission equipment for chamfer | |
| CN111230233A (en) | A kind of tapping method for workpiece machining | |
| CN111251212B (en) | Pressure sensor manufacturing process | |
| CN114193632A (en) | High-efficient graphite chamfering device | |
| US4901840A (en) | Apparatus for transferring work-supporting pallets | |
| CN211545076U (en) | Automatic turnover mechanism for small rigid workpiece in linear moving clamping conveying equipment | |
| CN117007874B (en) | Online detection equipment for data line connector | |
| CN219978424U (en) | Online detection equipment for data line connector | |
| JPH0262445B2 (en) | ||
| CN111102864A (en) | A water injection device and method for automatic production of heat pipes | |
| CN216029514U (en) | Turnover device for automobile part machining | |
| CN212421304U (en) | Double-end mechanical arm | |
| CN115464401A (en) | Integrated production device for motorcycle cylinder body | |
| CN222794631U (en) | A clamping, flipping and transporting mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200930 Address after: 337100 business street, Lu Kou Town, Lianhua County, Pingxiang City, Jiangxi Province Applicant after: Pingxiang Zhenying enterprise management consulting center Address before: No.2 Longteng Road, Shiqi District, Zhongshan City, Guangdong Province Applicant before: Wu Xianhua |
|
| TA01 | Transfer of patent application right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201026 Address after: Room 412, productivity building, Songshanhu science and Technology Industrial Park, Dongguan City, Guangdong Province 523000 Patentee after: Dongguan Mingzhong Industrial Investment Co.,Ltd. Address before: 337100 business street, Lu Kou Town, Lianhua County, Pingxiang City, Jiangxi Province Patentee before: Pingxiang Zhenying enterprise management consulting center |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: Room 409, Building 1, No. 2 Keji 9th Road, Songshan Lake Park, Dongguan City, Guangdong Province, 523000 Patentee after: Dongguan Mingzhong Enterprise Management Co.,Ltd. Address before: 523000 room 412, productivity building, Songshanhu science and Technology Industrial Park, Dongguan City, Guangdong Province Patentee before: Dongguan Mingzhong Industrial Investment Co.,Ltd. |
|
| CP03 | Change of name, title or address |