Pushing device and PCB (Printed Circuit Board) processing equipment

Abstract

The utility model belongs to the technical field of circuit board production, and particularly relates to a material pushing device and PCB processing equipment. The pushing device comprises a driving assembly, a first moving part, a second moving part, an elastic part and a limiting assembly; the first moving part is slidably connected to the second moving part, and the elastic part is connected between the first moving part and the second moving part; the driving assembly can drive the first moving part and the second moving part to move in the first direction, so that the first moving part pushes the material plate to move; when making contact with the material plate, the first moving piece can move by a preset distance in the second direction relative to the second moving piece and stretch the elastic piece, the first moving piece can be separated from the material plate when pushing the material plate to reach the preset position, and the elastic piece shrinks to drive the first moving piece to return and abut against the limiting assembly. According to the utility model, when the first moving piece moves along the second direction relative to the second moving piece, the elastic piece is stretched, so that the damage to the material plate caused by rigid collision between the first moving piece and the material plate can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board production, and particularly relates to a material pushing device and a PCB processing device. Background Art

[0002] In a PCB processing device, a material pushing device is arranged on one side of a material box and can push out a material plate in the material box.

[0003] However, most of the existing material pushing devices drive a push rod to move rigidly by components such as air cylinders and belts. During the process of the push rod pushing the material plate, the material plate will be damaged. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: in view of the problem that the existing material pushing device will damage the material plate, a material pushing device and a PCB processing device are provided.

[0005] To solve the above technical problem, on the one hand, an embodiment of the utility model provides a material pushing device, which includes a driving component, a first moving part, a second moving part, an elastic part and a limiting component; the first moving part is slidably connected to the second moving part, the output end of the driving component is connected to the second moving part, and the elastic part is connected between the first moving part and the second moving part;

[0006] The driving component can drive the first moving part and the second moving part to move in a first direction, so that the first moving part pushes the material plate to move;

[0007] When the first moving part moves in the first direction to contact the material plate, it can move a preset distance in a second direction relative to the second moving part and stretch the elastic part. When the first moving part pushes the material plate to a predetermined position, it can be separated from the material plate, and the elastic part contracts to drive the first moving part to move in the first direction and abut against the limiting component;

[0008] The first direction and the second direction are opposite.

[0009] Optionally, the limiting component includes a mounting seat and a buffer gasket. The mounting seat is mounted on the second moving part, and the buffer gasket is mounted on the mounting seat;

[0010] The first moving part can abut against the buffer gasket under the drive of the elastic part.

[0011] Optionally, the limiting component further includes a limiting connecting piece and a limiting piece. One end of the limiting connecting piece is connected to the first moving part, and the other end of the limiting connecting piece is connected to the limiting piece;

[0012] When the first moving member moves relative to the second moving member along the second direction, the limiting connecting member moves with the first moving member and drives the limiting member to abut against the mounting base.

[0013] Optionally, an avoidance hole is provided on the buffer gasket, and the avoidance hole is used for the limiting connecting member to pass through.

[0014] Optionally, the connection position of the elastic member on the second moving member is adjustable.

[0015] Optionally, the first moving member includes a push rod, a sliding groove is provided on the second moving member, the push rod is arranged in the sliding groove, and the push rod is used to push the material plate.

[0016] Optionally, the push rod is a linear guide rail, a slider is provided on the second moving member, the sliding groove is arranged on the slider, and the linear guide rail is connected to the slider.

[0017] Optionally, it further includes a first induction piece and an in-place sensor for sensing the first induction piece, and the in-place sensor is installed on the second moving member;

[0018] The first moving member further includes a connecting plate, the connecting plate is connected to the push rod, the first induction piece is installed on the connecting plate, and when the first moving member moves relative to the second moving member along the second direction, the first induction piece disengages from the in-place sensor.

[0019] Optionally, it further includes a base, and the second moving member is slidably connected to the base;

[0020] The drive assembly includes a drive motor, a driving wheel, a driven wheel and a synchronous belt. The drive motor is installed on the base, the driving wheel is connected to the output end of the drive motor, the driven wheel is installed on the base, the synchronous belt is wound around the driving wheel and the driven wheel, and the second moving member is connected to the synchronous belt.

[0021] Optionally, there are two driven wheels, and the synchronous belt is wound around the driving wheel and the two driven wheels;

[0022] The connection position of the second moving member and the synchronous belt is located between the two driven wheels.

[0023] Optionally, the drive assembly further includes at least one connecting wheel, the connecting wheel is installed on the base, and the connecting wheel is arranged between the driving wheel and the driven wheel.

[0024] Optionally, a first position sensor, a second position sensor and a third position sensor are arranged on the base, and the second position sensor is located between the first position sensor and the third position sensor in the first direction;

[0025] The second movable member is provided with a second sensing sheet, which can trigger the first position sensor to detect the positive limit position of the second movable member; the second sensing sheet can trigger the second position sensor to detect the zero position of the second movable member; the second sensing sheet can trigger the third position sensor to detect the negative limit position of the second movable member.

[0026] On the other hand, an embodiment of the utility model provides a PCB processing equipment, including a material box and a pushing device as described above, wherein the material box is used to store the material plate, the pushing device is arranged on one side of the material box, and the first moving member pushes the material plate out of the material box under the drive of the driving assembly.

[0027] The pushing device provided by the embodiment of the utility model can complete the pushing process of the first moving part by driving the first moving part and the second moving part to move through the driving component. The first moving part is slidably connected to the second moving part, so that when the first moving part contacts the material plate, it can move a short distance in the second direction relative to the second moving part, and the elastic part can be stretched during the movement, thereby buffering the first moving part and avoiding damage to the material plate caused by rigid collision between the first moving part and the material plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of a material pushing device provided by an embodiment of the utility model;

[0029] Figure 2 It is a partial schematic diagram of a material pushing device provided in one embodiment of the utility model;

[0030] Figure 3 It is a schematic diagram of a driving assembly provided in one embodiment of the utility model.

[0031] The reference numerals in the specification are as follows:

[0032] 1. first moving member; 11. push rod; 12. first sensing sheet; 13. connecting plate;

[0033] 2. Second moving part; 21. Connecting hole; 22. Sliding block; 23. In-position sensor; 24. Second sensing sheet; 25. Connecting screw;

[0034] 3. Driving assembly; 31. Driving motor; 32. Driving wheel; 33. Passive wheel; 34. Synchronous belt; 35. Connecting wheel;

[0035] 4. Elastic member;

[0036] 5. Limit assembly; 51. Mounting base; 52. Buffer gasket; 53. Limit connecting member; 54. Limiting member;

[0037] 6. Base; 61. Guide rail; 62. First position sensor; 63. Second position sensor; 64. Third position sensor;

[0038] a. First direction; b. Second direction. Detailed implementation manner

[0039] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0040] As Figures 1 to 3 shown, a pushing device provided by an embodiment of the present utility model includes a driving assembly 3, a first moving member 1, a second moving member 2, an elastic member 4 and a limit assembly 5; the first moving member 1 is slidably connected to the second moving member 2, and the first moving member 1 can slide relative to the second moving member 2. The output end of the driving assembly 3 is connected to the second moving member 2, and the driving assembly 3 can drive the first moving member 1 and the second moving member 2 to move together along the first direction a so that the first moving member 1 pushes the material plate to move.

[0041] The elastic member 4 is connected between the first moving member 1 and the second moving member 2. When the first moving member 1 moves along the first direction a to contact the material plate, due to the mutual force between the first moving member 1 and the material plate, the first moving member 1 can move a preset distance relative to the second moving member 2 along the second direction b and stretch the elastic member 4. After moving the preset distance, the first moving member 1 and the second moving member 2 continue to move synchronously until the first moving member 1 can be separated from the material plate when the first moving member 1 pushes the material plate to a predetermined position. At this time, the elastic member 4 contracts to drive the first moving member 1 to move along the first direction and abut against the limit assembly 5. Thus, after being separated from the material plate, the first moving member 1 returns to its original position driven by the elastic member 4, and during the process of the first moving member 1 returning to its original position, the limit assembly 5 can limit the moving distance of the first moving member 1 when it returns to its original position, avoiding the first moving member 1 moving too far under the action of the elastic force and colliding with the material plate again. Among them, the first direction a and the second direction b are opposite.

[0042] In this embodiment, by driving the first moving member 1 and the second moving member 2 to move through the driving assembly 3, the feeding process of the first moving member 1 can be completed. The first moving member 1 is slidably connected to the second moving member, so that when the first moving member 1 contacts the material plate, it can move a short distance relative to the second moving member 2 in the second direction, and the elastic member 4 can be stretched during the movement, thereby buffering the first moving member 1 and avoiding damage to the material plate caused by a rigid collision between the first moving member 1 and the material plate.

[0043] In the PCB processing equipment, the material plate is a PCB board, and the PCB board is stored in the material box. The material box has two openings. The driving assembly 3 drives the first moving member 1 and the second moving member 2 to approach the material box in the first direction until the first moving member 1 contacts the PCB board through one of the openings and pushes the PCB board out through the other opening to achieve the purpose of feeding.

[0044] In one embodiment, the elastic member 4 is configured to be capable of undergoing elastic deformation and restoring deformation. Preferably, the elastic member 4 is a spring.

[0045] In one embodiment, as Figure 2 shown, the limiting assembly 5 includes a mounting base 51 and a buffer gasket 52. The mounting base 51 is fixedly installed on the second moving member 2, and the buffer gasket 52 is installed on the mounting base 51. When the first moving member 1 moves relative to the second moving member 2 in the second direction, the first moving member 1 gradually moves away from the buffer gasket 52. When the elastic member 4 contracts, it drives the first moving member 1 to move in the first direction and abut against the buffer gasket 52. The buffer gasket 52 can buffer the first moving member 1 and avoid a rigid collision between the first moving member 1 and the mounting base 51.

[0046] Among them, the buffer gasket 52 includes, but is not limited to, a rubber gasket and a silica gel gasket.

[0047] In one embodiment, as Figure 2 shown, the limiting assembly 5 further includes a limiting connecting member 53 and a limiting member 54. The buffer gasket 52 is installed on the surface of the mounting base 51 away from the limiting member 54. One end of the limiting connecting member 53 is fixedly connected to the first moving member 1, so that the limiting connecting member 53 can move with the first moving member 1. The other end of the limiting connecting member 53 is connected to the limiting member 54, and the other end of the limiting connecting member 53 can move relative to the mounting base 51.

[0048] When the first moving member 1 moves relative to the second moving member 2 in the second direction, the limiting connecting member 53 moves with the first moving member 1 and drives the limiting member 54 to abut against the mounting base 51. When the limiting member 54 abuts against the mounting base 51, the moving distance of the first moving member 1 relative to the second moving member 2 is a preset distance.

[0049] In this embodiment, the limit member 54 can limit the preset distance that the first movable member 1 moves along the second direction, thereby preventing the first movable member 1 from continuously stretching the elastic member 4 during the process of pushing the material plate, and preventing the first movable member 1 from moving too far in the second direction relative to the second movable member 2 to affect the pushing of the material. At the same time, it can also avoid excessive stretching of the elastic member 4 to affect the service life of the elastic member 4.

[0050] Preferably, a through hole is provided on the mounting seat 51, and the other end of the limiting connecting member 53 passes through the through hole of the mounting seat 51 and is connected to the limiting member 54. The other end of the limiting connecting member 53 is matched with the clearance of the through hole to facilitate the assembly of the limiting connecting member 53 and the limiting member 54. When the limiting connecting member 53 moves with the first movable member 1, it can drive the limiting member 54 to abut against the mounting seat 51 or leave the mounting seat 51.

[0051] In one embodiment, if Figure 2 As shown, on a plane perpendicular to the first direction, the cross-sectional area of the limit member 54 is larger than the cross-sectional area of the other end of the limit connecting member 53, so that when the limit connecting member 53 moves following the first movable member 1, the limit member 54 can abut against the mounting seat 51 and cannot be separated from the mounting seat 51, thereby forming a limit.

[0052] In one embodiment, the limiting connecting member 53 is a limiting screw, which has a threaded section and a non-threaded section. The threaded section is threadedly connected to the first movable member 1, and the non-threaded section is passed through the mounting seat 51. The limiting member 54 is a nut of the limiting screw and is arranged at one end of the non-threaded section away from the threaded section to prevent the non-threaded section from detaching from the mounting seat 51.

[0053] In one embodiment, a avoidance hole is provided on the buffer gasket 52, and the avoidance hole is used for the limiting connection member 53 to pass through. The end of the limiting connection member 53 away from the first movable member 1 passes through the avoidance hole and is then installed on the mounting seat 51. Part of the limiting connection member 53 protrudes from the mounting seat 51 and is connected to the limiting member 54.

[0054] The shapes of the avoidance holes include but are not limited to U-shaped, circular, square and elliptical.

[0055] In one embodiment, if Figure 2 As shown, the connection position of the elastic member 4 on the second movable member 2 is adjustable, so that after the elastic member 4 is used for a long time, it can be adjusted according to the fatigue degree of the elastic member 4 to ensure that the elastic member 4 can drive the first movable member 1 to return to its original position when it contracts, and can adapt to elastic members 4 of different lengths.

[0056] Among them, one end of the elastic member 4 is connected to the second movable member 2 through a connecting screw 25. The second movable member 2 is provided with multiple connecting holes 21. The connecting screw 25 can be installed in any connecting hole 21 to adjust the connection position of the elastic member 4 and the second movable member 2.

[0057] In one embodiment, as Figure 2 , Figure 3 shown, the first moving member 1 includes a push rod 11 for pushing the material plate. The push rod 11 extends in a first direction away from the first moving member 1. A chute is provided on the second moving member 2, and the push rod 11 is disposed in the chute and can move along the chute. Thus, when the first moving member 1 moves in the first direction to contact the material plate, the first moving member 1 moves relative to the second moving member 2 in a second direction.

[0058] In a specific embodiment, as Figure 2 shown, the push rod 11 is a linear guide rail. A slider 22 is provided on the second moving member 2, and the chute is provided on the slider 22. The linear guide rail is connected to the slider 22, and the slider 22 remains stationary on the second moving member 2. The linear guide rail moves relative to the slider 22 under the reaction force of the material plate. By using the linear guide rail as the push rod 11, the relative sliding between the first moving member 1 and the second moving member 2 and the material pushing action can be taken into account, without additionally providing a slide rail between the first moving member 1 and the second moving member 2, reducing the number of components of the material pushing device.

[0059] In one embodiment, as Figure 2 , Figure 3 shown, the first moving member 1 further includes a connecting plate 13 connected to the push rod 11. When the push rod 11 moves along the chute, it can drive the connecting plate 13 to move together.

[0060] The material pushing device further includes a first sensing piece 12 and a position inductor 23 for sensing the first sensing piece 12. The position inductor 23 is installed on the second moving member 2, and the first sensing piece 12 is installed on the connecting plate 13. When the first moving member 1 moves relative to the second moving member 2 in the second direction, the first sensing piece 12 disengages from the position inductor 23, thereby transmitting a signal indicating that the push rod 11 contacts the material plate.

[0061] Before the material plate is not yet contacted, the first sensing piece 12 and the position inductor 23 are in an induction state. When the first moving member 1 moves in the first direction to contact the material plate, the first moving member 1 starts to move relative to the second moving member 2 in the second direction, and the first sensing piece 12 disengages from the position inductor 23. Thus, it can be determined that the push rod 11 contacts the material plate and the material pushing has started.

[0062] When the push rod 11 disengages from the material plate, the first moving member 1 returns to its original position driven by the elastic member 4, driving the first sensing piece 12 to return to its original position. The position inductor 23 senses the first sensing piece 12 again, indicating that the material plate has reached the preset position at this time.

[0063] In one embodiment, as Figure 3As shown, the pusher device further includes a base 6, and the second moving member 2 is slidably connected to the base 6. The driving assembly 3 includes a driving motor 31, a driving wheel 32, a driven wheel 33, and a synchronous belt 34. The driving motor 31 is installed on the base 6, the driving wheel 32 is connected to the output end of the driving motor 31, the driven wheel 33 is installed on the base 6, the synchronous belt 34 is wound around the driving wheel 32 and the driven wheel 33, and the second moving member 2 is connected to the synchronous belt 34.

[0064] The driving motor 31 drives the driving wheel 32 to rotate, thereby driving the synchronous belt 34 to transmit power. During the transmission of the synchronous belt 34, the second moving member 2 and the first moving member 1 provided on the second moving member 2 reciprocate. When the first moving member 1 and the second moving member 2 move in the first direction, the first moving member 1 can contact the material plate to achieve pushing of the material.

[0065] In one embodiment, as Figure 3 shown, there are two driven wheels 33, the synchronous belt 34 is wound around the driving wheel 32 and the two driven wheels 33, the connection position of the second moving member 2 and the synchronous belt 34 is between the two driven wheels 33, and the part of the synchronous belt 34 between the two driven wheels 33 extends in the first direction, so as to drive the second moving member 2 to move in the first direction.

[0066] In one embodiment, as Figure 3 shown, the driving assembly 3 further includes at least one connecting wheel 35. The connecting wheel 35 is installed on the base 6 and is arranged between the driving wheel 32 and the driven wheel 33.

[0067] The synchronous belt 34 includes a first section, a second section, and a third section. The first section is between the two driven wheels 33, the second section is between the driving wheel 32 and one of the driven wheels 33, and the third section is between the driving wheel 32 and the other driven wheel 33. The connecting wheel 35 abuts against the second section and / or the third section, and both the driving wheel 32 and the driven wheel 33 are in contact with the inner side of the synchronous belt 34, and the connecting wheel 35 is in contact with the outer side of the synchronous belt 34, which can increase the contact area between the driving wheel 32 and the synchronous belt 34 and also save the space occupied by the second section and / or the third section.

[0068] Preferably, there are two connecting wheels 35. One connecting wheel 35 abuts against the second section of the synchronous belt 34, and the other connecting wheel 35 abuts against the third section of the synchronous belt 34, which can further increase the contact area between the driving wheel 32 and the synchronous belt 34 and save the space occupied by the synchronous belt 34.

[0069] In one embodiment, as Figure 1 shown, a guide rail 61 is provided on the base 6, and the second moving member 2 is slidably connected to the base 6 through the guide rail 61. Driven by the driving assembly 3, the second moving member 2 moves along the guide rail 61, and the movement of the second moving member 2 can be guided through the guide rail 61.

[0070] In one embodiment, if Figure 1 , Figure 2 As shown, a first position sensor 62 , a second position sensor 63 and a third position sensor 64 are disposed on the base 6 , and the second position sensor 63 is located between the first position sensor 62 and the third position sensor 64 in the first direction.

[0071] A second sensing sheet 24 is provided on the second movable member 2. The second sensing sheet 24 moves along with the second movable member 2. The second sensing sheet 24 can trigger the first position sensor 62 to detect the positive limit position of the second movable member 2; the second sensing sheet 24 can trigger the second position sensor 63 to detect the zero position of the second movable member 2; the second sensing sheet 24 can trigger the third position sensor 64 to detect the negative limit position of the second movable member 2.

[0072] Before the material pushing device pushes the material, the first position sensor 62 is triggered by the second sensing sheet 24 to determine the zero position of the first moving member 1 and the second moving member 2. When the second sensing sheet 24 triggers the first position sensor 62 under the drive of the driving assembly 3, it indicates that the second moving member 2 moves to the positive limit position. When the second sensing sheet 24 triggers the third position sensor 64, it indicates that the second moving member 2 moves to the negative limit position. The first position sensor 62 and the third position sensor 64 can limit the moving range of the second moving member 2 to prevent the second moving member 2 from exceeding the moving range and colliding with other components of the PCB processing equipment.

[0073] On the other hand, an embodiment of the utility model provides a PCB processing equipment, including a material box and a pushing device of the above embodiment, the material box is used to store material plates, the pushing device is arranged on one side of the material box, and the first moving member 1 pushes the material plate out of the material box under the drive of the driving component 3.

[0074] The above description is only a preferred embodiment of the present invention and is 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 pusher device, characterized in that, It includes a driving component, a first moving member, a second moving member, an elastic member and a limiting component; the first moving member is slidably connected to the second moving member, the output end of the driving component is connected to the second moving member, and the elastic member is connected between the first moving member and the second moving member; The driving component can drive the first moving member and the second moving member to move in a first direction so that the first moving member pushes the material plate to move; When the first moving member moves in the first direction to contact the material plate, it can move a preset distance in a second direction relative to the second moving member and stretch the elastic member. When the first moving member pushes the material plate to a predetermined position, it can disengage from the material plate, and the elastic member contracts to drive the first moving member to move in the first direction and abut against the limiting component; The first direction and the second direction are opposite.

2. The pusher device according to claim 1, characterized in that, The limiting component includes a mounting seat and a buffer gasket. The mounting seat is mounted on the second moving member, and the buffer gasket is mounted on the mounting seat; The first moving member can abut against the buffer gasket under the drive of the elastic member.

3. The pusher device according to claim 2, wherein, The limiting component further includes a limiting connecting piece and a limiting member. One end of the limiting connecting piece is connected to the first moving member, and the other end of the limiting connecting piece is connected to the limiting member; When the first moving member moves in the second direction relative to the second moving member, the limiting connecting piece moves with the first moving member and drives the limiting member to abut against the mounting seat.

4. The pusher device according to claim 3, characterized in that, A relief hole is provided on the buffer gasket for the limiting connecting piece to pass through.

5. The pusher device according to claim 1, characterized in that The connection position of the elastic member on the second moving member is adjustable.

6. The pusher device according to claim 1, wherein The first moving member includes a push rod. A chute is provided on the second moving member, and the push rod is arranged in the chute. The push rod is used to push the material plate.

7. The pusher device according to claim 6, wherein The push rod is a linear guide rail. A slider is provided on the second moving member, the chute is arranged on the slider, and the linear guide rail is connected to the slider.

8. The pusher device according to claim 6, characterized in that, It further includes a first sensing piece and a position-in-place sensor for sensing the first sensing piece. The position-in-place sensor is mounted on the second moving member; The first moving member further includes a connecting plate connected to the push rod. The first sensing piece is mounted on the connecting plate. When the first moving member moves in the second direction relative to the second moving member, the first sensing piece disengages from the position-in-place sensor.

9. The pusher device according to any one of claims 1-8, characterized in that, It further includes a base, and the second moving member is slidably connected to the base; The driving component includes a driving motor, a driving wheel, a driven wheel and a synchronous belt. The driving motor is mounted on the base, the driving wheel is connected to the output end of the driving motor, the driven wheel is mounted on the base, the synchronous belt is wound around the driving wheel and the driven wheel, and the second moving member is connected to the synchronous belt.

10. The pusher device according to claim 9, characterized in that, There are two driven wheels, and the synchronous belt is wound around the driving wheel and the two driven wheels; The connection position of the second moving member and the synchronous belt is located between the two driven wheels.

11. The pusher device according to claim 9, characterized in that, The driving assembly further comprises at least one connecting wheel, which is mounted on the base and arranged between the driving wheel and the driven wheel.

12. The pusher device according to claim 9, characterized in that, A first position sensor, a second position sensor and a third position sensor are arranged on the base, and the second position sensor is located between the first position sensor and the third position sensor in the first direction; The second movable member is provided with a second sensing sheet, and the second sensing sheet can trigger the first position sensor to detect the positive limit position of the second movable member; The second sensing piece can trigger the second position sensor to detect the zero position of the second movable member; the second sensing piece can trigger the third position sensor to detect the negative limit position of the second movable member.

13. A PCB processing device, characterized in that, It comprises a material box and a pushing device as described in any one of claims 1 to 12, wherein the material box is used to store the material sheet, the pushing device is arranged on one side of the material box, and the first moving member pushes the material sheet out of the material box under the drive of the driving assembly.

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