Material conveying device and PCB (Printed Circuit Board) testing equipment

Abstract

The utility model belongs to the technical field of PCB testing, and relates to a material transmission device and PCB testing equipment. The material conveying device comprises a conveying mechanism and a plate arranging mechanism. The conveying mechanism is used for conveying materials in the first direction. The plate arranging mechanism comprises a driving assembly, a first base, a second base, a first beating plate and a second beating plate, the first base and the second base are oppositely arranged on the two sides of the conveying mechanism in the second direction, and the first beating plate and the second beating plate are oppositely arranged in the second direction; the first beating plate is slidably connected to the first base in the second direction, the second beating plate is slidably connected to the second base in the second direction, and the first direction and the second direction are not parallel and not collinear; the driving assembly is used for driving the first beating plate and the second beating plate to move oppositely or oppositely. The material conveying device can be used for shaping and centering correction of materials.

Description

Technical Field

[0001] The utility model belongs to the technical field of PCB board testing, and particularly relates to a material transmission device and PCB board testing equipment. Background Art

[0002] When testing, the PCB board needs to be transported to the detection mechanism through a conveying mechanism. However, the existing conveying mechanism can only realize the conveying function, and it is difficult to shape and align the PCB board. If the PCB board is offset, it will affect the accuracy of the PCB board detection. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to provide a material transmission device and a PCB board testing device in view of the technical problem that the existing conveying mechanism is difficult to shape and straighten the PCB board.

[0004] To solve the above technical problems, on the one hand, the embodiment of the utility model provides a material transmission device, including a conveying mechanism and a whole plate mechanism, wherein the conveying mechanism is used to convey materials along a first direction; the whole plate mechanism includes a driving assembly, a first base, a second base, a first clapper and a second clapper, the first base and the second base are arranged on both sides of the conveying mechanism relatively along a second direction, the first clapper and the second clapper are arranged relatively along the second direction, and the first clapper is slidably connected to the first base along the second direction, the second clapper is slidably connected to the second base along the second direction, and the first direction and the second direction are not parallel and not colinear;

[0005] The driving component is used to drive the first clapper and the second clapper to move toward or away from each other.

[0006] According to the material transmission device of the embodiment of the utility model, a plate-straightening mechanism is arranged on the conveying mechanism, the first base and the second base are arranged relatively on both sides of the conveying mechanism along the second direction, and the first clapper is slidably connected to the first base along the second direction, and the second clapper is slidably connected to the second base along the second direction, so that the first clapper and the second clapper are arranged relatively along the second direction. When the material is conveyed to between the first clapper and the second clapper by the conveying mechanism, the driving component drives the first clapper and the second clapper to move toward each other, and then the material between the first clapper and the second clapper can be shaped so that the material is centered, so as to prevent the deviation of the material from affecting the accuracy of material detection.

[0007] Optionally, the first clapper includes a first sliding plate and a first whole plate, the first sliding plate is slidably connected to the first base along the second direction, and the first whole plate is connected to a side of the first sliding plate close to the second clapper;

[0008] The second clapper includes a second sliding plate and a second whole plate, the second sliding plate is slidably connected to the second base along the second direction, and the second whole plate is connected to a side of the second sliding plate close to the first clapper;

[0009] The first whole plate and the second whole plate are spaced apart and face each other in the second direction.

[0010] Optionally, the first whole plate and the second whole plate are arranged vertically, and a surface of the first whole plate facing the second whole plate is parallel to a surface of the second whole plate facing the first whole plate.

[0011] Optionally, the whole plate mechanism further includes a synchronization component, and the driving component is used to drive the first clapper board and the second clapper board to move toward or away from each other through the synchronization component.

[0012] Optionally, a mounting frame is provided on the conveying mechanism along the second direction;

[0013] The synchronous assembly comprises a main pulley, a secondary pulley and a belt, the main pulley and the secondary pulley are both rotatably mounted on the mounting frame, the belt is wound around the main pulley and the secondary pulley, and the first clapper and the second clapper are respectively connected to the belt;

[0014] The driving assembly is used to drive the main pulley to rotate, and the rotation of the main pulley drives the belt to rotate, and the rotation of the belt drives the first clapper and the second clapper to move toward or away from each other.

[0015] Optionally, the axis of the primary pulley and the axis of the secondary pulley are parallel to the first direction;

[0016] The first clapper is connected to the section of the belt between the top side of the primary pulley and the top side of the secondary pulley, and the second clapper is connected to the section of the belt between the bottom side of the primary pulley and the bottom side of the secondary pulley.

[0017] Optionally, the whole plate mechanism further includes a first connecting member and a second connecting member, the first connecting member includes a first pressing block, a second pressing block and a first connecting block, the first connecting block is connected between the first sliding plate and the first pressing block, and the first pressing block cooperates with the second pressing block to clamp the belt;

[0018] The second connecting member includes a third pressing block, a fourth pressing block and a second connecting block, the second connecting block is connected between the second sliding plate and the third pressing block, and the third pressing block cooperates with the fourth pressing block to clamp the belt. Optionally, the conveying mechanism includes a first side plate, a second side plate and a plurality of conveying rollers, the first side plate and the second side plate are arranged opposite to each other along the second direction, the two ends of the conveying rollers are rotatably supported on the first side plate and the second side plate respectively, and the plurality of conveying rollers are arranged along the first direction.

[0019] Optionally, the material transmission device further includes a dust removal mechanism;

[0020] The conveying mechanism is provided with a loading area, a dust removal area and a whole board area in sequence along the first direction, and the loading area, the dust removal area and the whole board area are all provided with the conveying rollers;

[0021] The whole-plate mechanism is arranged on the whole-plate area, and the dust removal mechanism is arranged on the dust removal area. The dust removal mechanism is used for removing dust from the material passing through the dust removal area.

[0022] Optionally, the dust removal mechanism includes a first dust removal bracket, a second dust removal bracket and a first dust removal roller, the first dust removal bracket is mounted on the first side plate, the second dust removal bracket is mounted on the second side plate, and the first dust removal bracket and the second dust removal bracket are arranged opposite to each other along the second direction;

[0023] Both ends of the first dust removal roller are rotatably supported on the first dust removal bracket and the second dust removal bracket respectively, and the first dust removal roller is used for removing dust from the material passing through the dust removal area.

[0024] Optionally, the first dust removal roller is located above the conveying roller in the dust removal area, and a dust removal gap for the material to pass through is formed between the first dust removal roller and the conveying roller in the dust removal area.

[0025] Optionally, the dust removal mechanism also includes a second dust removal roller, both ends of which are rotatably supported on the first dust removal bracket and the second dust removal bracket respectively, and the second dust removal roller is located above the first dust removal roller, and the second dust removal roller is used to dust the first dust removal roller.

[0026] Optionally, a first vertical groove is provided on a side of the first dust removal bracket facing the second dust removal bracket, and a second vertical groove is provided on a side of the second dust removal bracket facing the first dust removal bracket;

[0027] One end of the first dust removal roller and one end of the second dust removal roller are slidably connected in the first vertical groove, and the other end of the first dust removal roller and the other end of the second dust removal roller are slidably connected in the second vertical groove.

[0028] Optionally, the first direction is perpendicular to the second direction.

[0029] On the other hand, the embodiment of the utility model further provides a PCB board testing device, which includes a machine platform, a testing device, a marking device, a board placing device, a board collecting device and the above-mentioned material transmission device, wherein the board placing device, the material transmission device, the testing device, the marking device and the board collecting device are sequentially arranged on the machine platform along the conveying direction of the material;

[0030] The plate placing device is used to load the material, the testing device is used to test the material, the marking device is used to mark the material that has completed the test, and the plate collecting device is used to recycle the material that has completed the marking;

[0031] The material is a PCB board.

[0032] According to the PCB board testing equipment of the embodiment of the utility model, the board placing device, the material transmission device, the testing device, the marking device and the board collecting device are sequentially arranged on the machine platform along the material conveying direction, wherein the material transmission device is provided with a board-forming mechanism on the conveying mechanism, the first base and the second base are relatively arranged on both sides of the conveying mechanism along the second direction, and the first clapper is slidably connected to the first base along the second direction, and the second clapper is slidably connected to the second base along the second direction, so that the first clapper and the second clapper are relatively arranged along the second direction. When the material is conveyed to between the first clapper and the second clapper by the conveying mechanism, the driving component drives the first clapper and the second clapper to move toward each other, and then the material between the first clapper and the second clapper can be shaped so that the material is centered, so as to prevent the deviation of the material from affecting the accuracy of material detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of a material transmission device provided by an embodiment of the utility model;

[0034] Figure 2 yes Figure 1 A schematic diagram from another angle;

[0035] Figure 3 yes Figure 2 Schematic diagram of the middle plate mechanism;

[0036] Figure 4 It is a schematic diagram of a PCB board testing device provided by an embodiment of the utility model;

[0037] Figure 5 yes Figure 4 Schematic diagram of another angle of the PCB board testing equipment.

[0038] The reference numerals in the specification are as follows:

[0039] 100. Material transmission device;

[0040] 1. Conveying mechanism; 11. Mounting frame; 12. First side plate; 13. Second side plate; 14. Conveying roller;

[0041] 2. Whole board mechanism; 21. Driving assembly; 22. Synchronous assembly; 221. Main pulley; 222. Secondary pulley; 223. Belt; 23. First base; 24. Second base; 25. First clapper; 251. First sliding plate; 252. First whole board; 26. Second clapper; 261. Second sliding plate; 262. Second whole board; 27. First connecting member; 271. First pressing block; 272. Second pressing block; 273. First connecting block; 28. Second connecting member; 281. Third pressing block; 2811. Through hole; 282. Fourth pressing block; 283. Second connecting block;

[0042] 3. Dust removal mechanism; 31. First dust removal bracket; 311. First vertical groove; 32. Second dust removal bracket; 321. Second vertical groove; 33. First dust removal roller; 34. Second dust removal roller;

[0043] 200, material; 300, machine; 400, testing device; 500, marking device; 600, board placing device; 700, board collecting device;

[0044] x, first direction; y, second direction. DETAILED DESCRIPTION

[0045] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0046] like Figures 1 to 3As shown, the material transmission device 100 provided by the embodiment of the utility model comprises a conveying mechanism 1 and a whole plate mechanism 2, wherein the conveying mechanism 1 is used to convey a material 200 along a first direction x. The whole plate mechanism 2 comprises a driving assembly 21, a first base 23, a second base 24, a first clapper 25 and a second clapper 26, wherein the first base 23 and the second base 24 are arranged on both sides of the conveying mechanism 1 in a relative manner along a second direction y, the first clapper 25 and the second clapper 26 are arranged in a relative manner along the second direction y, and the first clapper 25 is slidably connected to the first base 23 in the second direction y, and the second clapper 26 is slidably connected to the second base 24 in the second direction y, and the first direction x and the second direction y are not parallel and not colinear.

[0047] The driving assembly 21 is used to drive the first clapper 25 and the second clapper 26 to move toward or away from each other.

[0048] The material transmission device 100 provided by the embodiment of the utility model is provided with a plate-straightening mechanism 2 on the conveying mechanism 1, and the first base 23 and the second base 24 are arranged on both sides of the conveying mechanism 1 relatively along the second direction y, and the first clapper 25 is slidably connected to the first base 23 along the second direction y, and the second clapper 26 is slidably connected to the second base 24 along the second direction y, so that the first clapper 25 and the second clapper 26 are arranged relatively along the second direction y. When the material 200 is conveyed to between the first clapper 25 and the second clapper 26 by the conveying mechanism 1, the driving component 21 drives the first clapper 25 and the second clapper 26 to move toward each other, and then the material 200 between the first clapper 25 and the second clapper 26 can be shaped so that the material 200 is centered, so as to prevent the deviation of the material 200 from affecting the accuracy of the detection of the material 200.

[0049] After the shaping is completed, the driving assembly 21 drives the first clapper 25 and the second clapper 26 to move in opposite directions, so that the material 200 can continue to be transported to the next station.

[0050] In one embodiment, the first direction x is perpendicular to the second direction y.

[0051] In one embodiment, if Figures 1 to 3 As shown, the first clapper 25 includes a first sliding plate 251 and a first whole plate 252. The first sliding plate 251 is slidably connected to the first base 23 along the second direction y, and the first whole plate 252 is connected to the side of the first sliding plate 251 close to the second clapper 26 to realize the connection between the first clapper 25 and the first base 23.

[0052] The second clapper 26 includes a second sliding plate 261 and a second whole plate 262. The second sliding plate 261 is slidably connected to the second base 24 along the second direction y. The second whole plate 262 is connected to the side of the second sliding plate 261 close to the first clapper 25 to achieve the connection between the second clapper 26 and the second base 24.

[0053] The first whole plate 252 and the second whole plate 262 are spaced apart from each other in the second direction y.

[0054] When the first sliding plate 251 slides relative to the first base 23 and the second sliding plate 261 slides relative to the second base 24 , the first whole plate 252 and the second whole plate 262 will be driven to move toward or away from each other along the second direction y, so as to shape the material 200 through the first whole plate 252 and the second whole plate 262 .

[0055] In one embodiment, if Figures 1 to 3 As shown, the first whole plate 252 and the second whole plate 262 are vertically arranged, and the surface of the first whole plate 252 facing the second whole plate 262 is parallel to the surface of the second whole plate 262 facing the first whole plate 252 to ensure effective shaping of the material 200.

[0056] In one embodiment, if Figures 1 to 3 As shown, the whole plate mechanism 2 further includes a synchronization component 22 , and the driving component 21 is used to drive the first clapper 25 and the second clapper 26 to move toward or away from each other through the synchronization component 22 .

[0057] In one embodiment, if Figures 1 to 3 As shown, a mounting frame 11 is provided on the conveying mechanism 1 along the second direction y.

[0058] The synchronous assembly 22 includes a main pulley 221, a secondary pulley 222 and a belt 223. The main pulley 221 and the secondary pulley 222 are both rotatably mounted on the mounting frame 11. The belt 223 is wound around the main pulley 221 and the secondary pulley 222. The first clapper 25 and the second clapper 26 are respectively connected to the belt 223.

[0059] The driving assembly 21 is used to drive the main pulley 221 to rotate, so as to drive the belt 223 to rotate, and further drive the first clapper 25 and the second clapper 26 to move toward or away from each other, so as to achieve the shaping of the material 200.

[0060] In other embodiments not shown in the figures, the synchronization component may also be a chain transmission component.

[0061] In one embodiment, if Figures 1 to 3 As shown, the axis of the primary pulley 221 and the axis of the secondary pulley 222 are parallel to the first direction x.

[0062] The first clapper 25 is connected to the section of the belt 223 between the top side of the primary pulley 221 and the top side of the secondary pulley 222, and the second clapper 26 is connected to the section of the belt 223 between the bottom side of the primary pulley 221 and the bottom side of the secondary pulley 222, to ensure that when the belt 223 moves, the first clapper 25 and the second clapper 26 can move toward or away from each other.

[0063] In one embodiment, if Figures 1 to 3 As shown, the whole plate mechanism 2 also includes a first connecting member 27 and a second connecting member 28. The two ends of the first connecting member 27 are respectively connected to the first clapper 25 and the belt 223, and the two ends of the second connecting member 28 are respectively connected to the second clapper 26 and the belt 223.

[0064] In one embodiment, if Figure 3 As shown, the first connecting member 27 includes a first pressing block 271, a second pressing block 272 and a first connecting block 273. The first connecting block 273 is connected between the first sliding plate 251 and the first pressing block 271. The first pressing block 271 and the second pressing block 272 cooperate to clamp the belt 223 to achieve the connection between the first clapper board 25, the first connecting member 27 and the belt 223.

[0065] The second connecting member 28 includes a third pressing block 281, a fourth pressing block 282 and a second connecting block 283. The second connecting block 283 is connected between the second sliding plate 261 and the third pressing block 281. The third pressing block 281 and the fourth pressing block 282 cooperate to clamp the belt 223 to achieve the connection between the second clapper board 26, the second connecting member 28 and the belt 223.

[0066] In one embodiment, if Figure 3 As shown, since the second clapper 26 is connected to the section of the belt 223 between the bottom side of the primary pulley 221 and the bottom side of the secondary pulley 222, in order to prevent the second connecting member 28 from interfering with the movement of the belt 223, a through hole 2811 is formed on the upper side of the third pressure block 281 for the belt 223 to pass through.

[0067] In one embodiment, if Figure 1 and Figure 2 As shown, the conveying mechanism 1 includes a first side plate 12, a second side plate 13 and a plurality of conveying rollers 14. The first side plate 12 and the second side plate 13 are arranged opposite to each other along the second direction y. Both ends of the conveying roller 14 are rotatably supported on the first side plate 12 and the second side plate 13 respectively. The plurality of conveying rollers 14 are arranged along the first direction x to form the conveying mechanism 1.

[0068] The first base 23 is mounted on the first side plate 12 , and the second base 24 is mounted on the second side plate 13 , thereby achieving the installation of the first base 23 and the second base 24 .

[0069] In one embodiment, if Figure 1 and Figure 2 As shown, the material conveying device 100 further includes a dust removal mechanism 3 .

[0070] The conveying mechanism 1 is provided with a loading area, a dust removal area and a whole board area in sequence along the first direction x, and the loading area, the dust removal area and the whole board area are all provided with conveying rollers 14 .

[0071] The whole-plate mechanism 2 is arranged on the whole-plate area, and the dust removal mechanism 3 is arranged on the dust removal area. The dust removal mechanism 3 is used for removing dust from the material 200 passing through the dust removal area.

[0072] The material conveying device 100 can be compatible with dust removal and shaping and positioning of PCB boards in a small space, thereby reducing the floor space occupied by the material conveying device 100 .

[0073] In one embodiment, if Figure 1 and Figure 2 As shown, the dust removal mechanism 3 includes a first dust removal bracket 31, a second dust removal bracket 32 ​​and a first dust removal roller 33. The first dust removal bracket 31 is installed on the first side plate 12, and the second dust removal bracket 32 ​​is installed on the second side plate 13. The first dust removal bracket 31 and the second dust removal bracket 32 ​​are arranged opposite to each other along the second direction y.

[0074] Both ends of the first dust removal roller 33 are rotatably supported on the first dust removal bracket 31 and the second dust removal bracket 32 ​​respectively. The first dust removal roller 33 is used to remove dust from the material 200 passing through the dust removal area.

[0075] In one embodiment, if Figure 1 and Figure 2 As shown, the first dust removal roller 33 is located above the conveying roller 14 in the dust removal area. A dust removal gap for the material 200 to pass through is formed between the first dust removal roller 33 and the conveying roller 14 in the dust removal area. The material 200 can be conveyed from the dust removal gap. When the material 200 passes through the dust removal gap, the first dust removal roller 33 removes dust from the material 200.

[0076] In one embodiment, if Figure 1 and Figure 2 As shown, the dust removal mechanism 3 also includes a second dust removal roller 34, both ends of which are rotatably supported on the first dust removal bracket 31 and the second dust removal bracket 32 ​​respectively, and the second dust removal roller 34 is located above the first dust removal roller 33, and the second dust removal roller 34 is used to remove dust from the first dust removal roller 33 to maintain the cleanliness of the first dust removal roller 33, so that the first dust removal roller 33 can continue to remove dust from the material 200.

[0077] In one embodiment, if Figure 1 and Figure 2 As shown, a first vertical groove 311 is provided on a side of the first dust removal bracket 31 facing the second dust removal bracket 32 ​​, and a second vertical groove 321 is provided on a side of the second dust removal bracket 32 ​​facing the first dust removal bracket 31 .

[0078] One end of the first dust removal roller 33 and one end of the second dust removal roller 34 are slidably connected in the first vertical groove 311, and the other end of the first dust removal roller 33 and the other end of the second dust removal roller 34 are slidably connected in the second vertical groove 321, so as to facilitate the replacement of the first dust removal roller 33 and the second dust removal roller 34, and also provide space for the first dust removal roller 33 and the second dust removal roller 34 to float up and down to prevent the material 200 from being crushed.

[0079] The working principle of the material transmission device 100 provided in the embodiment of the utility model is as follows:

[0080] The material 200 is conveyed by the conveying mechanism 1, firstly passes through the dust removal mechanism 3 for dust removal, and then passes through the plate straightening mechanism 2 for shaping. Specifically, at the dust removal mechanism 3, the first dust removal roller 33 removes the dust on the material 200 by rolling contact with the material 200. At the plate straightening mechanism 2, the driving component 21 drives the first clapper 25 and the second clapper 26 to move toward each other through the synchronization component 22, and then the material 200 between the first clapper 25 and the second clapper 26 can be shaped so that the material 200 is centered.

[0081] like Figure 4 and Figure 5 As shown, an embodiment of the utility model further provides a PCB board testing device, which includes a machine platform 300, a testing device 400, a marking device 500, a board placing device 600, a board collecting device 700 and the above-mentioned material transmission device 100, the board placing device 600, the material transmission device 100, the testing device 400, the marking device 500 and the board collecting device 700 are sequentially arranged on the machine platform 300 along the conveying direction of the material 200.

[0082] The plate placing device 600 is used to load the material 200 , the testing device 400 is used to test the material 200 , the marking device 500 is used to mark the material 200 that has completed the test, and the plate collecting device 700 is used to recycle the material 200 that has completed the marking.

[0083] Material 200 is a PCB board.

[0084] According to the PCB board testing equipment of the embodiment of the utility model, the board placing device 600, the material transmission device 100, the testing device 400, the marking device 500 and the board collecting device 700 are sequentially arranged on the machine 300 along the conveying direction of the material 200, wherein the material transmission device 100 is provided with a whole board mechanism 2 on the conveying mechanism 1, and the first base 23 and the second base 24 are relatively arranged on both sides of the conveying mechanism 1 along the second direction y, and the first clapper 25 is slidably connected to the first base 23 along the second direction y, and the second clapper 26 is slidably connected to the second base 24 along the second direction y, so that the first clapper 25 and the second clapper 26 are relatively arranged along the second direction y. When the material 200 is conveyed to between the first clapper 25 and the second clapper 26 by the conveying mechanism 1, the driving component 21 drives the first clapper 25 and the second clapper 26 to move toward each other, thereby shaping the material 200 between the first clapper 25 and the second clapper 26 so that the material 200 is centered, thereby preventing the material 200 from being offset and affecting the accuracy of the material 200 detection.

[0085] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A material transmission device, characterized in that: It comprises a conveying mechanism and a whole plate mechanism, wherein the conveying mechanism is used to convey materials along a first direction; the whole plate mechanism comprises a driving assembly, a first base, a second base, a first clapper and a second clapper, wherein the first base and the second base are arranged on both sides of the conveying mechanism opposite to each other along a second direction, the first clapper and the second clapper are arranged opposite to each other along the second direction, and the first clapper is slidably connected to the first base along the second direction, and the second clapper is slidably connected to the second base along the second direction, and the first direction and the second direction are not parallel and not colinear; The driving component is used to drive the first clapper and the second clapper to move toward or away from each other.

2. The material conveying device according to claim 1, characterized in that: The first clapper includes a first sliding plate and a first whole plate, the first sliding plate is slidably connected to the first base along the second direction, and the first whole plate is connected to a side of the first sliding plate close to the second clapper; The second clapper includes a second sliding plate and a second whole plate, the second sliding plate is slidably connected to the second base along the second direction, and the second whole plate is connected to a side of the second sliding plate close to the first clapper; The first whole plate and the second whole plate are spaced apart and face each other in the second direction.

3. The material conveying device according to claim 2, characterized in that: The first whole plate and the second whole plate are arranged vertically, and a surface of the first whole plate facing the second whole plate is parallel to a surface of the second whole plate facing the first whole plate.

4. The material conveying device according to claim 2, characterized in that: The whole plate mechanism also includes a synchronization component, and the driving component is used to drive the first clapper and the second clapper to move toward or away from each other through the synchronization component.

5. The material conveying device according to claim 4, characterized in that: A mounting frame is provided on the conveying mechanism along the second direction; The synchronous assembly comprises a main pulley, a secondary pulley and a belt, the main pulley and the secondary pulley are both rotatably mounted on the mounting frame, the belt is wound around the main pulley and the secondary pulley, and the first clapper and the second clapper are respectively connected to the belt; The driving assembly is used to drive the main pulley to rotate, and the rotation of the main pulley drives the belt to rotate, and the rotation of the belt drives the first clapper and the second clapper to move toward or away from each other.

6. The material conveying device according to claim 5, characterized in that: The axis of the primary pulley and the axis of the secondary pulley are parallel to the first direction; The first clapper is connected to the section of the belt between the top side of the primary pulley and the top side of the secondary pulley, and the second clapper is connected to the section of the belt between the bottom side of the primary pulley and the bottom side of the secondary pulley.

7. The material conveying device according to claim 5, characterized in that: The whole plate mechanism further includes a first connecting member and a second connecting member, the first connecting member includes a first pressing block, a second pressing block and a first connecting block, the first connecting block is connected between the first sliding plate and the first pressing block, and the first pressing block cooperates with the second pressing block to clamp the belt; The second connecting member includes a third pressing block, a fourth pressing block and a second connecting block, the second connecting block is connected between the second sliding plate and the third pressing block, and the third pressing block cooperates with the fourth pressing block to clamp the belt.

8. The material conveying device according to claim 1, characterized in that: The conveying mechanism includes a first side plate, a second side plate and a plurality of conveying rollers. The first side plate and the second side plate are arranged opposite to each other along the second direction. Both ends of the conveying rollers are rotatably supported on the first side plate and the second side plate respectively. The plurality of conveying rollers are arranged along the first direction.

9. The material conveying device according to claim 8, characterized in that: The material transmission device also includes a dust removal mechanism; The conveying mechanism is provided with a loading area, a dust removal area and a whole board area in sequence along the first direction, and the loading area, the dust removal area and the whole board area are all provided with the conveying rollers; The whole-plate mechanism is arranged on the whole-plate area, and the dust removal mechanism is arranged on the dust removal area. The dust removal mechanism is used for removing dust from the material passing through the dust removal area.

10. The material conveying device according to claim 9, characterized in that: The dust removal mechanism comprises a first dust removal bracket, a second dust removal bracket and a first dust removal roller, the first dust removal bracket is mounted on the first side plate, the second dust removal bracket is mounted on the second side plate, and the first dust removal bracket and the second dust removal bracket are arranged opposite to each other along the second direction; Both ends of the first dust removal roller are rotatably supported on the first dust removal bracket and the second dust removal bracket respectively, and the first dust removal roller is used for removing dust from the material passing through the dust removal area.

11. The material conveying device according to claim 10, characterized in that: The first dust removal roller is located above the conveying roller in the dust removal area, and a dust removal gap for the material to pass through is formed between the first dust removal roller and the conveying roller in the dust removal area.

12. The material conveying device according to claim 10, characterized in that: The dust removal mechanism also includes a second dust removal roller, both ends of which are rotatably supported on the first dust removal bracket and the second dust removal bracket respectively, and the second dust removal roller is located above the first dust removal roller, and the second dust removal roller is used to dust the first dust removal roller.

13. The material conveying device according to claim 12, characterized in that: A first vertical groove is provided on a side of the first dust removal bracket facing the second dust removal bracket, and a second vertical groove is provided on a side of the second dust removal bracket facing the first dust removal bracket; One end of the first dust removal roller and one end of the second dust removal roller are slidably connected in the first vertical groove, and the other end of the first dust removal roller and the other end of the second dust removal roller are slidably connected in the second vertical groove.

14. The material conveying device according to claim 1, characterized in that: The first direction is perpendicular to the second direction.

15. A PCB board testing device, characterized in that: It comprises a machine platform, a testing device, a marking device, a plate placing device, a plate collecting device and the material conveying device according to any one of claims 1 to 14, wherein the plate placing device, the material conveying device, the testing device, the marking device and the plate collecting device are sequentially arranged on the machine platform along the conveying direction of the material; The plate placing device is used to load the material, the testing device is used to test the material, the marking device is used to mark the material that has completed the test, and the plate collecting device is used to recycle the material that has completed the marking; The material is a PCB board.

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