Automatic magazine unloading device

Abstract

This invention provides a pre-discharge track conveying mechanism and a corresponding cartridge-type automatic unloading device. The pre-discharge track conveying mechanism includes two side tracks, two transmission components, and a track pusher assembly. The track pusher assembly includes a limiting post, a sliding block, a rotating block, a tension spring, and a pusher drive component. The sliding block has a first position and a second position. The rotating block is rotatably connected to the sliding block. The tension spring connects the sliding block and the rotating block, causing the rotating block to rotate upwards. The limiting post causes the rotating block to rotate downwards. The pusher drive component is connected to the sliding block and is used to drive the sliding block to slide longitudinally between the first and second positions. When the sliding block is in the first position, the rotating block is below the limiting post. When the sliding block is in the second position, the rotating block disengages from the limiting post, and the sliding block slides from the first position to the second position, thereby pushing the circuit board away from the two transmission components. The cartridge-type automatic unloading device includes the above-described pre-discharge track conveying mechanism.

Description

[0001] This application is a divisional application of the original application, which was filed on May 30, 2023, with application number 2023106300723 and invention title "Clip-type Automatic Feeding Device". Technical Field

[0002] This invention relates to the field of material feeding equipment technology, and in particular to a pre-discharge track conveying mechanism and a corresponding clip-type automatic feeding device. Background Technology

[0003] In automated manufacturing or assembly lines, after circuit boards are processed, a feeding mechanism is often needed for unloading. Current feeding mechanisms lack crucial automation modules, cannot fully push the circuit boards into the magazine, require manual assistance, have low automation levels, resulting in low feeding efficiency and high labor intensity for operators.

[0004] Therefore, it is necessary to provide a pre-discharge track conveying mechanism and a corresponding magazine-type automatic unloading device to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a pre-discharge track conveying mechanism and a corresponding magazine-type automatic unloading device, which can completely push the circuit board into the magazine without manual assistance, effectively improving work efficiency.

[0006] The technical solution of this invention is as follows:

[0007] A pre-discharge track conveying mechanism is used to push a circuit board into a corresponding test clip holding lifting mechanism, the pre-discharge track conveying mechanism comprising:

[0008] Two side rails, which are set parallel to each other and opposite to each other;

[0009] Two transmission components, each mounted on one of the two side rails, are used to transport the circuit board; and,

[0010] The track pusher assembly includes a limiting post, a sliding block, a rotating block, a tension spring, and a pusher drive. The sliding block is longitudinally slidably disposed on the inner side of the side track, and has a first position and a second position on its sliding trajectory. The rotating block is rotatably connected to the sliding block. The tension spring connects the sliding block and the rotating block, and provides elastic force to make the rotating block rotate upward. The limiting post is fixed on the inner side of the side track, and causes the rotating block to rotate downward, making the rotating block lower than the circuit board. The pusher drive is connected to the sliding block and drives the sliding block to slide longitudinally between the first position and the second position. When the sliding block is in the first position, the rotating block is below the limiting post. When the sliding block is in the second position, the rotating block disengages from the limiting post, and the sliding block slides from the first position to the second position, causing the rotating block to contact the end face of the circuit board, thereby pushing the circuit board away from the two transmission components.

[0011] In the pre-discharge track conveying mechanism of the present invention, the pre-discharge track conveying mechanism further includes a sensor, which is disposed at the discharge end of the pre-discharge track conveying mechanism. The sensor is used to sense the circuit board. When the sensor does not sense the circuit board, the rotating block extends from the bottom of the limiting post and completely pushes the circuit board out of the transmission assembly.

[0012] In the pre-discharge track conveying mechanism of the present invention, each of the transmission components includes a conveyor belt, and the pre-discharge track conveying mechanism further includes a track pressurizing component, which includes a fixed block, a movable block, a guide shaft, a pressure roller, and a compression spring; the fixed block is fixed on the side track, the fixed block is provided with a movable groove, the guide shaft is vertically disposed in the movable groove, the movable block is vertically movably disposed in the movable groove and sleeved on the guide shaft, the movable block is vertically disposed with a stepped hole, the pressure roller is rotatably connected to the movable block and disposed adjacent to the conveyor belt, the compression spring is sleeved on the guide shaft, one end of the compression spring is located in the stepped hole, and the other end abuts against the side wall of the movable groove, the elastic force of the compression spring causes the movable block to move downward and press the circuit board against the conveyor belt, so as to increase the friction between the circuit board and the conveyor belt.

[0013] In the pre-discharge track conveying mechanism of the present invention, each of the transmission components further includes a driving wheel and a driven wheel. The driving wheel is located at the loading end of the transmission component, and the driven wheel is located at the unloading end of the transmission component. The driving wheel and the driven wheel are respectively rotatably disposed at both ends of the side track, and the conveyor belt is sleeved on the driving wheel and the driven wheel. There are four track pressing components, of which two pressure rollers are arranged opposite each other and located between the driving wheel and the driven wheel, and the other two pressure rollers are arranged opposite each other and opposite to the driven wheel.

[0014] In the pre-discharge track conveying mechanism of the present invention, the pre-discharge track conveying mechanism further includes a width-adjusting screw, which connects the two side tracks, and the width-adjusting screw is used to adjust the distance between the two transmission components.

[0015] Another technical solution of the present invention is:

[0016] An automatic magazine-type unloading device includes a frame and a test magazine clamping and lifting mechanism, a test board empty magazine conveying mechanism, and a test board receiving mechanism, all mounted on the frame, as well as the aforementioned pre-discharge track conveying mechanism. The pre-discharge track conveying mechanism is mounted on the frame. The test magazine clamping and lifting mechanism is located on one side of the longitudinal direction of the pre-discharge track conveying mechanism. The conveying directions of the test board empty magazine conveying mechanism and the test board receiving mechanism are both transverse, and they are arranged in parallel vertically. The discharge end of the test board empty magazine conveying mechanism and the inlet end of the test board receiving mechanism are both adjacent to the test magazine clamping and lifting mechanism. The test board empty magazine conveying mechanism is used to convey empty magazines to the test magazine clamping and lifting mechanism, and the test board receiving mechanism is used to convey magazines filled with test boards held by the test magazine clamping and lifting mechanism.

[0017] In the automatic unloading device of the present invention, the test clip clamping and lifting mechanism includes a test board clamping assembly, a test board telescopic assembly, and a test board lifting assembly. The test board clamping assembly is used to clamp the clip, which has openings at both ends along the longitudinal direction. The clip is used to carry the test circuit board conveyed by the pre-discharge track conveying mechanism. The test board telescopic assembly is connected to the test board clamping assembly and is used to control the test board clamping assembly to move laterally to remove an empty clip from the test board empty clip conveying mechanism and to place the clip filled with the test circuit board onto the test board receiving mechanism. The test board lifting assembly is connected to the test board telescopic assembly and is used to control the test board telescopic assembly and the test board clamping assembly to move vertically.

[0018] In the automatic feeding device of the magazine type described in this invention, the test board telescopic assembly includes a telescopic drive component, a telescopic drive block, a linear guide rail, two connecting plates, and an upper plate; the telescopic drive component is a cylinder arranged in a transverse direction, used to drive the telescopic drive block to move in a transverse direction; the linear guide rail connects the telescopic drive component and the telescopic drive block; the two connecting plates are parallel and arranged opposite each other in the longitudinal direction, and are both connected to the telescopic drive component, one of the connecting plates is also connected to the test board lifting assembly; the upper plate is fixedly connected to the top of the two connecting plates to form the movable space of the test board clamping assembly.

[0019] The automatic feeding device of the magazine type according to the present invention further includes a post-discharge track conveying mechanism, a good board magazine clamping and lifting mechanism, a good board empty magazine conveying mechanism, and a good board receiving mechanism.

[0020] The discharge track conveyor is connected above the test plate telescopic assembly and is used to receive and convey the good plate conveyed by the discharge track conveyor.

[0021] The good plate spring clip lifting mechanism is arranged adjacent to the discharge end of the discharge track conveying mechanism;

[0022] The conveying direction of the empty plate clip conveying mechanism and the empty plate receiving mechanism is both horizontal, and they are arranged in parallel vertically. The discharge end of the empty plate clip conveying mechanism and the inlet end of the empty plate receiving mechanism are located on the same side, and both are adjacent to the empty plate clip clamping and lifting mechanism.

[0023] In the automatic feeding device of the magazine type of the present invention, the good board magazine clamping and lifting mechanism includes a good board clamping assembly, a good board telescopic assembly, and a good board lifting assembly. The good board clamping assembly is used to clamp the magazine, and the magazine is used to carry the good board conveyed by the post-discharge track conveying mechanism. The good board telescopic assembly is connected to the good board clamping assembly and is used to control the good board clamping assembly to move laterally, so as to remove the empty magazine from the good board empty magazine conveying mechanism and place the magazine filled with good boards onto the good board receiving mechanism. The good board lifting assembly is connected to the good board telescopic assembly and is used to control the good board telescopic assembly and the good board clamping assembly to move vertically.

[0024] Compared to existing technologies, the advantages of this invention are as follows: The pre-discharge track conveying mechanism and corresponding automatic magazine-type unloading device of this invention, when the circuit board is normally conveyed by the two transmission components, the push plate drive drives the rotating block to move below the limiting post. The limiting post causes the rotating block to rotate downwards, keeping it below the circuit board and preventing interference with the conveying of the circuit board. When the circuit board is almost completely separated from the two transmission components, the push plate drive drives the rotating block to move away from the limiting post, stretching the spring and causing the rotating block to rotate upwards, making contact between the rotating block and the end face of the circuit board, thereby pushing the circuit board. During the conveying process of the circuit board, because the end of the circuit board does not fully enter the magazine when it leaves the two transmission components, the two transmission components cannot fully push the circuit board into the magazine. The track push plate assembly can fully push the circuit board into the magazine without manual assistance, effectively improving work efficiency. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments are briefly introduced below. The drawings described below are only the corresponding drawings of some embodiments of the present invention.

[0026] Figure 1 This is a schematic diagram of the overall structure of the magazine-type automatic feeding device provided in a preferred embodiment of the present invention.

[0027] Figure 2 This is a top view of the magazine-type automatic feeding device provided in a preferred embodiment of the present invention.

[0028] Figure 3 This is a schematic diagram of the pre-discharge track conveying mechanism of the magazine-type automatic feeding device provided in a preferred embodiment of the present invention.

[0029] Figure 4 A schematic diagram of the track pressurization component of the magazine-type automatic feeding device provided in a preferred embodiment of the present invention.

[0030] Figure 5 This is an exploded structural diagram of the track pressurization component of the magazine-type automatic feeding device provided in a preferred embodiment of the present invention.

[0031] Figure 6 This is a schematic diagram of the post-discharge track conveying mechanism and the test clip clamping and lifting mechanism of the automatic unloading device provided in a preferred embodiment of the present invention.

[0032] Figure 7 This is a schematic diagram of the structure of the magazine clamping and lifting mechanism of the magazine-type automatic unloading device provided in a preferred embodiment of the present invention.

[0033] Figure 8This is a schematic diagram of the magazine structure of the magazine-type automatic feeding device provided in a preferred embodiment of the present invention.

[0034] Figure 9 This is a side view of the magazine structure of the magazine-type automatic feeding device provided in a preferred embodiment of the present invention.

[0035] in,

[0036] 1. Rack,

[0037] 2. Work platform

[0038] 3. Track conveying mechanism before material discharge.

[0039] 31. Side track,

[0040] 32. Transmission assembly; 321. Conveyor belt; 322. Driving pulley; 323. Driven pulley.

[0041] 33. Track pusher assembly; 331. Limiting post; 332. Sliding block; 333. Rotating block; 334. Tension spring; 335. Pusher drive component.

[0042] 34. Track pressurization assembly; 341. Fixed block; 3411. Movable groove; 342. Movable block; 343. Guide shaft; 344. Pressure roller; 345. Compression spring.

[0043] 35. Adjust the lead screw width.

[0044] 4. Discharge grab arm,

[0045] 5. The magazine clamping and lifting mechanism for the magazine under test.

[0046] 51. Test board clamping assembly; 511. Cylinder; 512. Piston rod; 513. Clamping wheel.

[0047] 52. Telescopic assembly of the board under test; 521. Telescopic drive component; 522. Telescopic drive block; 523. Linear guide rail; 524. Connecting plate; 525. Upper plate.

[0048] 53. Lifting assembly for the board under test; 531. Lifting drive component; 532. Lifting drive block.

[0049] 54. Limit block,

[0050] 6. Test plate empty magazine conveying mechanism,

[0051] 7. Test board receiving mechanism,

[0052] 8. Magazine,

[0053] 81. Side plate; 811. Slot; 812. Strip hole.

[0054] 82. Top plate, 821. First sub-plate, 822. Second sub-plate.

[0055] 9. Post-discharge track conveying mechanism,

[0056] 10. High-quality spring clip lifting mechanism.

[0057] 20. Good plate empty magazine conveying mechanism,

[0058] 30. Good board receiving mechanism,

[0059] 40. NG board placement mechanism

[0060] 50. Stacking and receiving mechanism.

[0061] In the diagram, units with similar structures are represented by the same labels. Detailed Implementation

[0062] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0063] The directional terms mentioned in this invention, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", are only for reference to the orientation of the accompanying drawings. The directional terms used are for the purpose of explaining and understanding this invention, and are not intended to limit this invention.

[0064] The terms "first" and "second" used in the terminology of this invention are for descriptive purposes only and should not be construed as indicating or implying relative importance, nor as limiting the order of events.

[0065] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0066] The existing material feeding mechanism has a low degree of automation, requires many manual assistance processes, and lacks automation modules, resulting in low material feeding efficiency and high labor intensity for operators.

[0067] The following is a preferred embodiment of a magazine-type automatic feeding device provided by the present invention, which can solve the above-mentioned technical problems.

[0068] Please refer to Figures 1-9 A preferred embodiment of the present invention provides a magazine-type automatic unloading device, comprising a frame 1, and a work platform 2, a pre-discharge track conveying mechanism 3, a discharge gripper arm 4, a test magazine clamping and lifting mechanism 5, a test board empty magazine conveying mechanism 6, and a test board receiving mechanism 7, all mounted on the frame 1. The work platform 2 and the pre-discharge track conveying mechanism 3 are arranged laterally, while the pre-discharge track conveying mechanism 3 and the test magazine clamping and lifting mechanism 5 are arranged longitudinally. The conveying direction of the test board empty magazine conveying mechanism 6 and the test board receiving mechanism 7 is both laterally, and they are arranged vertically in parallel. The discharge end of the test board empty magazine conveying mechanism 6 and the infeed end of the test board receiving mechanism 7 are located on the same side. The work platform 2 is used to place the processed circuit boards. The pre-discharge track conveying mechanism 3 is used to receive and convey the circuit boards on the work platform 2. The discharge gripper arm 4 is used to move the circuit boards from the work platform 2 to the pre-discharge track conveying mechanism 3.

[0069] The test clip holding and lifting mechanism 5 is arranged adjacent to the discharge end of the test board empty clip conveying mechanism 6 and the infeed end of the test board receiving mechanism 7. The test clip holding and lifting mechanism 5 includes a test board clamping assembly 51, a test board telescopic assembly 52, and a test board lifting assembly 53. The test board clamping assembly 51 is used to clamp clips 8, which have openings at both ends along the longitudinal direction. The clips 8 are used to carry the test board conveying mechanism 3 before discharge. The test board telescopic assembly 52 is connected to the test board clamping assembly 51 and is used to control the test board clamping assembly 51 to move laterally, so as to remove empty clips 8 from the test board empty clip conveying mechanism 6 and place clips 8 filled with test boards onto the test board receiving mechanism 7. The test board lifting assembly 53 is connected to the test board telescopic assembly 52 and is used to control the test board telescopic assembly 52 and the test board clamping assembly 51 to move vertically.

[0070] The test board lifting assembly 53 is fixed to the frame 1. The test board telescopic assembly 52 and the test board clamping assembly 51 are located on the same side of the test board lifting assembly 53, so that the test board lifting assembly 53 can drive the test board telescopic assembly 52 and the test board clamping assembly 51 to move upward together. The test board clamping assembly 51 is located above the test board telescopic assembly 52, so that the test board telescopic assembly 52 can provide a certain support force for the test board clamping assembly 51, ensuring the stability of the test board clamping assembly 51 after clamping the magazine 8. The clamping opening of the test board clamping assembly 51 faces the test board receiving mechanism 7 and the test board empty magazine conveying mechanism 6 laterally. When the test board telescopic assembly 52 drives the test board clamping assembly 51 to move laterally, the clamping opening of the test board clamping assembly 51 can extend into the test board empty magazine conveying mechanism 6 or the test board receiving mechanism 7, so as to clamp or release the magazine 8. The clamping opening of the test plate clamping assembly 51 is set to open and close vertically so as to clamp the magazine 8 from the top and bottom ends.

[0071] The test board lifting assembly 53 includes a lifting drive component 531 and a lifting drive block 532. The lifting drive component 531 is arranged vertically and fixed to the frame 1, and is used to drive the lifting drive block 532 to move vertically. The lifting drive component 531 is a servo motor module arranged vertically to facilitate control and improve the stability of vertical movement.

[0072] The test board telescopic assembly 52 includes a telescopic drive component 521, a telescopic drive block 522, a linear guide rail 523, two connecting plates 524, and an upper plate 525. The telescopic drive component 521 is a cylinder arranged laterally, used to drive the telescopic drive block 522 to move laterally. The linear guide rail 523 connects the telescopic drive component 521 and the telescopic drive block 522, ensuring stable sliding of the telescopic drive block 522. The two connecting plates 524 are parallel and longitudinally opposite each other, and both are connected to the telescopic drive component 521. One of the connecting plates 524 is also connected to a lifting drive block 532, allowing the lifting drive block 532 to drive the telescopic drive component 521 to move vertically. The upper plate 525 is fixedly connected to the tops of the two connecting plates 524, forming a space for the test board clamping assembly 51 to move, thus preventing interference from other objects.

[0073] The test board clamping assembly 51 is disposed between two connecting plates 524. It includes a cylinder 511, two sets of piston rods 512, and two sets of clamping wheels 513. The cylinder 511 is connected to the telescopic drive block 522, so that the telescopic drive block 522 can drive the cylinder 511 to move laterally. One set of piston rods 512 protrudes vertically from the upper end of the cylinder 511, and the other set of piston rods 512 protrudes vertically from the lower end of the cylinder 511. The two sets of clamping wheels 513 are respectively connected to the two sets of piston rods 512 and extend laterally toward the test board empty spring clip conveying mechanism 6 and the test board receiving mechanism 7. The test plate telescopic assembly 52 drives the test plate clamping assembly 51 to move laterally, allowing the two sets of clamping wheels 513 to extend into the upper and lower sides of the magazine 8 respectively. Simultaneously, the two sets of piston rods 512 retract inward, driving the two sets of clamping wheels 513 to move closer together to clamp the magazine 8. Simultaneously, the two sets of piston rods 512 extend outward, driving the two sets of clamping wheels 513 to move away from each other to release the magazine 8. This structure ensures stable clamping of the magazine 8 by the clamping wheels 513.

[0074] The test board empty magazine conveying mechanism 6 is used to convey empty magazines 8. The test board receiving mechanism 7 is used to convey magazines 8 filled with test boards. In each figure, x represents the horizontal direction, y represents the vertical direction, and z represents the vertical direction, and the three directions are perpendicular to each other.

[0075] In the operation of the automatic magazine-type unloading device of the present invention, the circuit board on the working platform 2 is moved to the pre-discharge track conveying mechanism 3 by the discharge gripper arm 4. The empty magazine 8 is conveyed by the test board empty magazine conveying mechanism 6 in a lateral direction towards the test magazine clamping lifting mechanism 5. The test board telescopic component 52 drives the test board clamping component 51 to extend laterally to the discharge end of the test board empty magazine conveying mechanism 6 and clamp the empty magazine 8. Then, the test board telescopic component 52 drives the test board clamping component 51 to retract laterally. The pre-discharge track conveying mechanism 3 conveys the circuit board to the magazine 8 clamped by the test board clamping component 51. The test board lifting component 53 drives the magazine 8 to move vertically to fill the magazine 8 with circuit boards. The test board telescopic component 52 drives the test board clamping component 51 to extend laterally and place the magazine 8 filled with circuit boards to the inlet end of the test board receiving mechanism 7. The test board receiving mechanism 7 outputs the magazine 8 laterally. The magazine-type automatic unloading device of the present invention can automatically input an empty magazine 8, and automatically load the circuit board on the working platform 2 into the magazine 8 and then output it, without the need for manual assistance, and has high unloading efficiency.

[0076] Please refer to Figure 1 and Figure 2The automatic feeding device also includes a post-discharge track conveying mechanism 9, a good board clip holding and lifting mechanism 10, a good board empty clip conveying mechanism 20, and a good board receiving mechanism 30. The post-discharge track conveying mechanism 9 is connected above the test board telescopic assembly 52 and is used to receive and convey the good board conveyed by the pre-discharge track conveying mechanism 3. The good board clip holding and lifting mechanism 10 is arranged adjacent to the discharge end of the discharge track conveying mechanism 9. The good board clip holding and lifting mechanism 10 includes a good board clamping assembly, a good board telescopic assembly, and a good board lifting assembly. The good board clamping assembly is used to clamp the clips 8, and the clips 8 are used to carry the good boards conveyed by the discharge track conveying mechanism 9. The good board telescopic assembly is connected to the good board clamping assembly and is used to control the good board clamping assembly to move laterally, so as to remove the empty clips 8 from the good board empty clip conveying mechanism 20 and place the clips 8 filled with good boards onto the good board receiving mechanism 30. The good board lifting assembly is connected to the good board telescopic assembly and is used to control the good board telescopic assembly and the good board clamping assembly to move vertically. The specific structure of the good board clip holding and lifting mechanism 10 can be referred to the clip clamping and lifting mechanism 5 under test, as the structures of the two are the same.

[0077] The conveying direction of the empty cartridge conveying mechanism 20 and the empty cartridge receiving mechanism 30 is both horizontal, and they are arranged in parallel vertically. The discharge end of the empty cartridge conveying mechanism 20 and the infeed end of the empty cartridge receiving mechanism 30 are located on the same side, and both are adjacent to the empty cartridge clamping and lifting mechanism 10.

[0078] In the above structure, when the circuit board is a good board, the discharge gripper arm 4 moves the good board on the work platform 2 to the discharge pre-rail conveyor mechanism 3. The test board lifting assembly 53 drives the discharge post-rail conveyor mechanism 9 to move vertically, so that the discharge post-rail conveyor mechanism 9 is flush with the discharge pre-rail conveyor mechanism 3. The good board is transported from the discharge pre-rail conveyor mechanism 3 to the discharge post-rail conveyor mechanism 9. The good board empty magazine conveyor mechanism 20 moves the empty magazine 8 laterally towards the good board magazine clamping lifting mechanism 10. The board is conveyed in the direction of the conveyor. The board telescopic assembly drives the board clamping assembly to move laterally. The board clamping assembly clamps the empty cartridge 8 from the empty cartridge conveyor 20 and then moves backward. After discharge, the track conveyor 9 conveys the board to the cartridge 8 held by the board clamping assembly. The board lifting assembly drives the cartridge 8 to move vertically, filling the cartridge 8 with board. The board telescopic assembly drives the board clamping assembly to move laterally, placing the filled cartridge 8 onto the board receiving mechanism 30 and outputting it laterally. With the above structure, empty cartridges 8 can be automatically input, and board is automatically loaded into cartridges 8 from the work platform 2 and output. No manual assistance is required, the unloading efficiency is high, and board and test board can be output separately.

[0079] Please refer to Figure 3The pre-discharge track conveying mechanism 3 includes two side tracks 31, two transmission components 32, and a track pusher assembly 33. The two side tracks 31 are parallel and opposite to each other. The two transmission components 32 are respectively mounted on the two side tracks 31 for conveying circuit boards. The track pusher assembly 33 includes a limiting post 331, a sliding block 332, a rotating block 333, a tension spring 334, and a pusher drive component 335. The sliding block 332 is slidably disposed on the inner side of the side track 31 along the longitudinal direction, and includes a first position and a second position on its sliding trajectory. The rotating block 333 is rotatably connected to the sliding block 332, and the tension spring 334 connects the sliding block 332 and the rotating block 333, providing elastic force to make the rotating block 333 rotate upward. The limiting post 331 is fixed on the inner side of the side track 31, causing the rotating block 333 to rotate downward, making the rotating block 333 lower than the circuit board. The pusher drive 335 is connected to the sliding block 332 and is used to drive the sliding block 332 to slide longitudinally between a first position and a second position. When the sliding block 332 is in the first position, the rotating block 333 is located below the limiting post 331. When the sliding block 332 is in the second position, the rotating block 333 disengages from the limiting post 331. The sliding block 332 slides from the first position to the second position, causing the rotating block 333 to contact the end face of the circuit board, thereby pushing the circuit board away from the two transmission components 32. The pusher drive 335 can be a cylinder. Figure 3 In the middle, two transmission components 32 transport the circuit board to the right, and the rotating block 333 pushes the circuit board to the right.

[0080] In the above structure, when the circuit board is normally transported by the two transmission components 32, the pusher drive 335 drives the rotating block 333 to move below the limiting post 331. The limiting post 331 causes the rotating block 333 to rotate downwards, keeping it below the circuit board and not affecting its transport. When the circuit board is about to completely leave the two transmission components 32, the pusher drive 335 drives the rotating block 333 to move away from the limiting post 331. The tension spring 334 causes the rotating block 333 to rotate upwards, making it contact the end face of the circuit board, thereby pushing the circuit board. During the transport of the circuit board, because the end of the circuit board does not fully enter the magazine 8 when it leaves the two transmission components 32, the two transmission components 32 cannot fully push the circuit board into the magazine 8. The track pusher assembly 33 can then fully push the circuit board into the magazine 8.

[0081] The pre-discharge track conveying mechanism 3 also includes a sensor, which is installed at the discharge end of the pre-discharge track conveying mechanism 3. The sensor is used to sense the circuit board. When the sensor does not sense the circuit board, the rotating block 333 extends from the bottom of the limiting post 331 to push the circuit board. In the above structure, the sensor can send a signal to control the rotating block 333 to extend at an appropriate time and push the circuit board completely into the magazine 8.

[0082] Please refer to Figure 3 , Figure 4 and Figure 5 Each transmission component 32 includes a conveyor belt 321, and the pre-discharge track conveying mechanism 3 also includes a track pressurizing component 34, which includes a fixed block 341, a movable block 342, a guide shaft 343, a pressure roller 344, and a compression spring 345. The fixed block 341 is fixed on the side rail 31. The fixed block 341 is provided with a movable groove 3411. The guide shaft 343 is vertically arranged in the movable groove 3411. The movable block 342 is vertically movably arranged in the movable groove 3411 and sleeved on the guide shaft 343. The movable block 342 is provided with a stepped hole vertically. The pressure roller 344 is rotatably connected to the movable block 342 and is arranged adjacent to the conveyor belt 321. The compression spring 345 is sleeved on the guide shaft 343. One end of the compression spring 345 is located in the stepped hole, and the other end abuts against the side wall of the movable groove 3411. The elastic force of the compression spring 345 causes the movable block 342 to move downward and press the circuit board against the conveyor belt 321 through the pressure roller 344 to increase the friction between the circuit board and the conveyor belt 321. In the above structure, the rebound force of the compression spring 345 drives the movable block 342 to move downward along the guide shaft 343, thereby driving the pressure roller 344 to move downward and press the circuit board against the conveyor belt 321, thereby increasing the friction between the circuit board and the conveyor belt 321 and preventing the circuit board from slipping on the conveyor belt 321. The pressure roller 344 is rotatable, which can prevent the circuit board from getting stuck.

[0083] Please refer to Figure 3 Each transmission component 32 also includes a driving wheel 322 and a driven wheel 323. The driving wheel 322 is located at the loading end of the transmission component 32, and the driven wheel 323 is located at the unloading end of the transmission component 32. The driving wheel 322 and the driven wheel 323 are rotatably mounted at both ends of the side track 31, and the conveyor belt 321 is fitted onto the driving wheel 322 and the driven wheel 323. There are four track pressing components 34, of which two pressure rollers 344 are arranged opposite each other and located between the driving wheel 322 and the driven wheel 323, and the other two pressure rollers 344 are arranged opposite each other and opposite to the driven wheel 323. In the above structure, the two pressure rollers 344 between the driving wheel 322 and the driven wheel 323 first press against the circuit board, giving the circuit board a small pressure. Then, the pressure rollers 344 above the two driven wheels 323 press against the circuit board. Through the cooperation of the driven wheel 323 and the pressure rollers 344, a larger pressure is given to the circuit board, making the circuit board more compact and ensuring smooth conveying.

[0084] Please continue to refer to Figure 3The pre-discharge track conveying mechanism 3 also includes a width-adjusting screw 35, which connects to two side tracks 31. The width-adjusting screw 35 is used to adjust the distance between the two transmission components 32. In the above structure, the distance between the two transmission components 32 can be adjusted by the width-adjusting screw 35 to accommodate different plate widths.

[0085] The structure of the post-discharge track conveyor 9 is the same as that of the pre-discharge track conveyor 3, and will not be described in detail here.

[0086] Please refer to Figure 7 The test magazine clamping and lifting mechanism 5 also includes a limiting block 54, which is connected to the test board telescopic assembly 52 and is used to limit the magazine 8 so that the magazine 8 moves to the same position. With the above structure, it is not necessary to repeatedly adjust the position of the magazine 8 when it retracts, so that the position of the magazine 8 when it retracts each time can match the position of the pre-discharge track conveying mechanism 3, which facilitates the conveying of the circuit board.

[0087] Please refer to Figure 2 The magazine-type automatic unloading device also includes an NG board placement mechanism 40, which is mounted on the frame 1 and located between the working platform 2 and the pre-discharge rail conveying mechanism 3. With the above structure, if the circuit board is an NG board, the circuit board can be moved from the working platform 2 to the NG board placement mechanism 40 by the discharge gripper arm 4.

[0088] Please continue to refer to Figure 2 The magazine-type automatic unloading device also includes a stacking and receiving mechanism 50, which is mounted on the frame 1 and adjacent to the side of the pre-discharge track conveyor 3 facing away from the work platform 2. With the above structure, if the circuit boards can be stacked, the discharge gripper arm 4 moves the circuit boards from the work platform 2 to the stacking and receiving mechanism 50.

[0089] Please refer to Figure 8 and Figure 9 The magazine 8 includes two side plates 81 and two top plates 82. The two side plates 81 are parallel to each other and opposite to each other, and the two top plates 82 are parallel to each other and opposite to each other. The two side plates 81 and the two top plates 82 are connected to form a frame structure with openings at both ends. Multiple slots 811 are provided on the inner side of the side plates 81. The slots 811 are arranged vertically at intervals, and the length direction of each slot 811 is longitudinal, used to support the edges of the circuit board. Using the above structure, when the pre-discharge track conveyor 3 transports the test boards one by one into the magazine 8, the test board lifting assembly 53 controls the magazine 8 to move the same height each time. When the post-discharge track conveyor 9 transports the finished boards one by one into the magazine 8, the finished board lifting assembly controls the magazine 8 to move the same height each time, facilitating control.

[0090] The top plate 82 includes a first sub-plate 821 and a second sub-plate 822, which are slidably disposed longitudinally. The first sub-plate 821 has a threaded hole, and the second sub-plate 822 has a U-shaped groove. The second sub-plate 822 is disposed outside the first sub-plate 821, and the threaded hole communicates with the U-shaped groove. In the above structure, the first sub-plate 821 and the second sub-plate 822 can be fixed by screws passing through the U-shaped groove and the threaded hole. The distance between the two side plates 81 can be adjusted by adjusting the position of the threaded hole in the U-shaped groove to accommodate circuit boards of different widths.

[0091] Please refer to Figure 8 Both ends of the card slot 811 are chamfered to facilitate the insertion of the circuit board. This structure allows the circuit board to be placed into the magazine 8 more quickly and accurately.

[0092] Please refer to Figure 8 The side plate 81 is provided with multiple strip-shaped holes 812, which are parallel to the slots 811 and are staggered. In the above structure, the strip-shaped holes 812 can reduce the weight of the magazine 8 and will not interfere with the slots 811, nor will they affect the insertion of the circuit board into the magazine 8.

[0093] The working process of the magazine-type automatic feeding device of the preferred embodiment of the present invention:

[0094] 1. When the circuit board is the board under test:

[0095] 1. The circuit board on the working platform 2 is moved to the pre-discharge track conveying mechanism 3 by the discharge gripper arm 4;

[0096] 2. Empty magazines 8 are transported laterally and toward the magazine clamping and lifting mechanism 5 via the empty magazine conveying mechanism 6 of the test plate;

[0097] 3. The test board telescopic assembly 52 drives the test board clamping assembly 51 to extend laterally to the discharge end of the test board empty magazine conveying mechanism 6 and clamps the empty magazine 8. Then the test board telescopic assembly 52 drives the test board clamping assembly 51 to retract laterally, and the magazine 8 is retracted to the same position each time by the limiting block 54.

[0098] 4. Before discharge, the track conveying mechanism 3 conveys the circuit board to the spring clip 8 held by the clamping component through the transmission component 32, and presses the circuit board against the conveyor belt 321 through the pressure roller 344 to increase the friction between the circuit board and the conveyor belt 321 and prevent the circuit board from slipping on the conveyor belt 321.

[0099] 5. When the circuit board is about to detach from the transmission assembly 32 and has not fully entered the magazine 8, the track pusher assembly 33 pushes the circuit board away from the transmission assembly 32 through the rotating block 333 and makes the circuit board fully enter the magazine 8.

[0100] 6. The lifting assembly 53 of the board under test drives the magazine 8 to move vertically so that the magazine 8 is filled with the circuit board.

[0101] 7. The test board telescopic assembly 52 drives the test board clamping assembly 51 to extend laterally and places the spring clip 8 filled with circuit boards into the feed end of the test board receiving mechanism 7. The test board receiving mechanism 7 outputs the spring clip 8 laterally.

[0102] II. When the circuit board is a good board:

[0103] 1. The circuit board on the working platform 2 is moved to the pre-discharge track conveying mechanism 3 by the discharge gripper arm 4;

[0104] 2. The lifting assembly 53 of the test board drives the discharge track conveyor 9 to move vertically, so that the discharge track conveyor 9 is flush with the discharge track conveyor 3, and the good board is conveyed from the discharge track conveyor 3 to the discharge track conveyor 9.

[0105] 3. The empty magazine conveying mechanism 20 conveys the empty magazine 8 laterally towards the magazine holding lifting mechanism 10.

[0106] 4. The good plate telescopic assembly drives the good plate clamping assembly to move laterally. The good plate clamping assembly clamps the empty magazine 8 from the good plate empty magazine conveying mechanism 20 and then moves backward.

[0107] 5. After discharge, the track conveyor 9 transports the good plate to the spring clip 8 held by the good plate clamping assembly;

[0108] 6. The good plate lifting assembly drives the magazine 8 to move vertically, filling the magazine 8 with good plates;

[0109] 7. The good board telescopic assembly drives the good board clamping assembly to move laterally, placing the spring clip 8 filled with good boards onto the good board receiving mechanism 30, and outputting it laterally.

[0110] 3. When the circuit board is an NG board: the circuit board is moved from the working platform 2 to the NG board placement mechanism 40 by the discharge gripper arm 4.

[0111] 4. When the circuit boards are allowed to be stacked, the circuit boards are moved from the work platform 2 to the stacking and receiving mechanism 50 by the discharge gripper arm 4.

[0112] This completes the working process of the magazine-type automatic feeding device of this preferred embodiment.

[0113] The automatic unloading device of the present invention, during operation, moves the circuit board on the working platform to the pre-discharge track conveying mechanism via the discharge gripper arm. The empty clips are then conveyed laterally towards the clip holding lifting mechanism via the test board empty clip conveying mechanism. The test board telescopic assembly drives the test board clamping assembly to extend laterally to the discharge end of the test board empty clip conveying mechanism and clamp the empty clip. Subsequently, the test board telescopic assembly drives the test board clamping assembly to retract laterally. The pre-discharge track conveying mechanism conveys the circuit board to the clip held by the test board clamping assembly. The test board lifting assembly moves the clip vertically to fill it with circuit boards. The test board telescopic assembly drives the test board clamping assembly to extend laterally and place the clip filled with circuit boards at the inlet end of the test board receiving mechanism. The test board receiving mechanism outputs the clip laterally. The automatic magazine-type unloading device of the present invention can automatically input empty magazines and automatically load circuit boards from the work platform into the magazines before outputting them, without the need for manual assistance, and has high unloading efficiency.

[0114] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the concept of the technical solution of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A magazine-type automatic feeding device, characterized in that, The device includes a frame and a test clip holding and lifting mechanism, a test board empty clip conveying mechanism, and a test board receiving mechanism, all mounted on the frame, as well as a pre-discharge track conveying mechanism. The pre-discharge track conveying mechanism is mounted on the frame. The test clip holding and lifting mechanism is located on one side of the longitudinal direction of the pre-discharge track conveying mechanism. The conveying direction of the test board empty clip conveying mechanism and the test board receiving mechanism is transverse, and they are arranged in parallel vertically. The discharge end of the test board empty clip conveying mechanism and the inlet end of the test board receiving mechanism are both adjacent to the test clip holding and lifting mechanism. The test board empty clip conveying mechanism is used to convey empty clips to the test clip holding and lifting mechanism, and the test board receiving mechanism is used to convey clips filled with test boards held by the test clip holding and lifting mechanism. The test clip holding and lifting mechanism includes a test board clamping assembly, a test board telescopic assembly, and a test board lifting assembly. The test board clamping assembly is used to clamp the clip, which has openings at both ends along the longitudinal direction. The clip is used to carry the test circuit board conveyed by the pre-discharge track conveying mechanism. The test board telescopic assembly is connected to the test board clamping assembly and is used to control the test board clamping assembly to move laterally to remove an empty clip from the test board empty clip conveying mechanism and to place the clip filled with the test circuit board onto the test board receiving mechanism. The test board lifting assembly is connected to the test board telescopic assembly and is used to control the test board telescopic assembly and the test board clamping assembly to move vertically. The automatic feeding device also includes a post-discharge track conveying mechanism, a good board clip holding and lifting mechanism, a good board empty clip conveying mechanism, and a good board receiving mechanism. The discharge track conveyor is connected above the test plate telescopic assembly and is used to receive and convey the good plate conveyed by the discharge track conveyor. The good plate spring clip lifting mechanism is arranged adjacent to the discharge end of the discharge track conveying mechanism; The conveying direction of the empty cartridge conveying mechanism and the empty cartridge receiving mechanism is both horizontal, and they are arranged in parallel vertically. The discharge end of the empty cartridge conveying mechanism and the inlet end of the empty cartridge receiving mechanism are located on the same side, and both are adjacent to the empty cartridge clamping and lifting mechanism. The pre-discharge track conveying mechanism is used to push the circuit board into the corresponding test clip holding lifting mechanism, and the pre-discharge track conveying mechanism includes: Two side rails, which are set parallel to each other and opposite to each other; Two transmission components, each mounted on one of the two side rails, are used to transport the circuit board; and, The track pusher assembly includes a limiting post, a sliding block, a rotating block, a tension spring, and a pusher drive. The sliding block is longitudinally slidably disposed on the inner side of the side track, and has a first position and a second position on its sliding trajectory. The rotating block is rotatably connected to the sliding block. The tension spring connects the sliding block and the rotating block, and provides elastic force to make the rotating block rotate upward. The limiting post is fixed on the inner side of the side track, and causes the rotating block to rotate downward, making the rotating block lower than the circuit board. The pusher drive is connected to the sliding block and drives the sliding block to slide longitudinally between the first position and the second position. When the sliding block is in the first position, the rotating block is below the limiting post. When the sliding block is in the second position, the rotating block disengages from the limiting post, and the sliding block slides from the first position to the second position, causing the rotating block to contact the end face of the circuit board, thereby pushing the circuit board away from the two transmission components.

2. The magazine-type automatic feeding device according to claim 1, characterized in that, The test board telescopic assembly includes a telescopic drive component, a telescopic drive block, a linear guide rail, two connecting plates, and an upper plate. The telescopic drive component is a cylinder arranged laterally, used to drive the telescopic drive block to move laterally. The linear guide rail connects the telescopic drive component and the telescopic drive block. The two connecting plates are parallel and arranged opposite each other longitudinally, and are both connected to the telescopic drive component. One of the connecting plates is also connected to the test board lifting assembly. The upper plate is fixedly connected to the top of the two connecting plates to form the movable space of the test board clamping assembly.

3. The magazine-type automatic feeding device according to claim 1, characterized in that, The plate clamping and lifting mechanism includes a plate clamping assembly, a plate telescopic assembly, and a plate lifting assembly. The plate clamping assembly is used to clamp the clips, which are used to carry the plates conveyed by the post-discharge track conveying mechanism. The plate telescopic assembly is connected to the plate clamping assembly and is used to control the plate clamping assembly to move laterally to remove empty clips from the empty plate clip conveying mechanism and to place the clips filled with plates onto the plate receiving mechanism. The plate lifting assembly is connected to the plate telescopic assembly and is used to control the plate telescopic assembly and the plate clamping assembly to move vertically.

4. The magazine-type automatic feeding device according to claim 1, characterized in that, The pre-discharge track conveying mechanism also includes a sensor, which is disposed at the discharge end of the pre-discharge track conveying mechanism. The sensor is used to sense the circuit board. When the sensor does not sense the circuit board, the rotating block extends from the bottom of the limiting post and completely pushes the circuit board out of the transmission assembly.

5. The magazine-type automatic feeding device according to claim 1, characterized in that, Each of the aforementioned transmission components includes a conveyor belt. The pre-discharge track conveying mechanism further includes a track pressurizing component, which includes a fixed block, a movable block, a guide shaft, a pressure roller, and a compression spring. The fixed block is fixed on the side track and has a movable groove. The guide shaft is vertically disposed in the movable groove. The movable block is vertically movably disposed in the movable groove and sleeved on the guide shaft. A stepped hole is vertically disposed inside the movable block. The pressure roller is rotatably connected to the movable block and is disposed adjacent to the conveyor belt. The compression spring is sleeved on the guide shaft. One end of the compression spring is located in the stepped hole, and the other end abuts against the side wall of the movable groove. The elastic force of the compression spring causes the movable block to move downward and press the circuit board against the conveyor belt to increase the friction between the circuit board and the conveyor belt.

6. The magazine-type automatic feeding device according to claim 5, characterized in that, Each of the transmission components further includes a driving wheel and a driven wheel. The driving wheel is located at the loading end of the transmission component, and the driven wheel is located at the unloading end of the transmission component. The driving wheel and the driven wheel are rotatably disposed at both ends of the side track, and the conveyor belt is sleeved on the driving wheel and the driven wheel. There are four track pressing components, of which two pressure rollers are arranged opposite each other and located between the driving wheel and the driven wheel, and the other two pressure rollers are arranged opposite each other and opposite to the driven wheel.

7. The magazine-type automatic feeding device according to claim 1, characterized in that, The pre-discharge track conveying mechanism also includes a width-adjusting screw, which connects the two side tracks and is used to adjust the distance between the two transmission components.

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