Double-track blanking machine for PCB (Printed Circuit Board)

Abstract

A double-rail blanking machine for a PCB comprises a pushing mechanism, a lifting mechanism and a double-rail rack, and the double-rail rack comprises a main rack body, a transverse driving module, a sliding seat, an adjusting assembly and a guiding mechanism; the transverse driving module is installed on the upper portion of the main frame body, the sliding seat is connected with the output end of the transverse driving module and is in sliding connection with the main frame body, the adjusting assembly is fixedly connected with the sliding seat and located below the sliding seat, and the pushing mechanism is fixedly connected with the end, away from the sliding seat, of the adjusting assembly and is located below the sliding seat. The guide mechanism is fixedly connected with the sliding seat, penetrates through the material pushing mechanism and is located between the material pushing mechanism and the sliding seat, and through the material pushing mechanism structure capable of being adjusted in multiple directions, the adaptability of equipment to material frames and PCBs of different specifications is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automatic plate collecting equipment, in particular to a double-track unloader for PCB. BACKGROUND

[0002] The double-track unloader is an automatic plate collecting equipment used at the end of SMT production line, which realizes efficient and continuous receiving and stacking of printed circuit boards (PCB). The current double-track unloader usually includes a plate pushing mechanism, a lifting mechanism and a double-track system, which realizes high efficiency of plate receiving through two workstations alternating operation.

[0003] At present, the prior art discloses a double-track unloader for PCB, which comprises a rack, a conveyor belt, a plate pushing cylinder and a double-lifting platform. The plate pushing cylinder is installed at the end of the conveyor belt and is used to push the PCB into the frame. The lifting platform is located below the plate pushing mechanism and is used to carry the frame and realize layer-by-layer lowering. The mechanism realizes uninterrupted plate receiving to a certain extent through double-track alternating operation mode.

[0004] However, the plate pushing mechanism of the above-mentioned double-track unloader is fixed and cannot be adjusted, and the plate pushing stroke and height cannot adapt to PCBs of different sizes or different stacking requirements. At the same time, the positioning accuracy of the lifting platform is limited, and the risk of misalignment or plate collision is easy to occur in high-speed or high-precision stacking scenarios, so the applicability and reliability are still insufficient.

[0005] Therefore, it is necessary to provide a new technical scheme to overcome the above-mentioned defects. SUMMARY

[0006] The present application aims to provide a double-track unloader for PCB which can effectively solve the above-mentioned technical problems.

[0007] In order to achieve the purpose of the present application, the following technical scheme is adopted: A double-track unloader for PCB, characterized in that it comprises a material pushing mechanism, a lifting mechanism and a double-track rack. The double-track rack comprises a main frame, a horizontal driving module, a sliding seat, an adjusting assembly and a guide mechanism. The horizontal driving module is installed on the upper part of the main frame. The sliding seat is connected to the output end of the horizontal driving module and is slidingly connected to the main frame. The adjusting assembly is fixedly connected to the sliding seat and is located below it. The material pushing mechanism is fixedly connected to the end of the adjusting assembly away from the sliding seat. The guide mechanism is fixedly connected to the sliding seat and penetrates through the material pushing mechanism between the material pushing mechanism and the sliding seat.

[0008] Further, the pushing mechanism comprises a mounting base plate, a pushing plate, a vacuum generator and a pushing rod mechanism, the mounting base plate is fixedly connected with the adjusting assembly and located at the lower end thereof, the pushing plate is hingedly connected to the front side of the mounting base plate, the vacuum generator is fixedly connected with the main frame body, and the vacuum generator is in communication with the inside of the pushing plate through an air pipe.

[0009] Further, the lateral driving module comprises a servo motor and a ball screw, the servo motor is fixedly connected with the mounting base plate, and the ball screw is connected with the output end of the servo motor.

[0010] Further, the pushing rod mechanism comprises a rotary motor, synchronous wheels, a belt, a pushing plate gripper, a bearing, a sliding block and a pushing rod mounting seat, the pushing plate gripper is assembled on the sliding block, the belt is assembled on the pushing plate mounting seat and connected with the sliding block, one side of the mounting base plate is provided with a guide rail, the sliding block is fixed on the guide rail, and the two ends of the belt are fixed on the synchronous wheels on the two sides, one of the synchronous wheels is fixed on the rotary motor, and the other synchronous wheel is fixedly connected with one end of the mounting base plate.

[0011] Further, one end of the pushing rod mounting seat is provided with a sensor connected with the wire of the rotary motor, and the pushing plate gripper is connected with the belt through the sliding block, so that the pushing plate gripper can move along with the rotary motor driving the belt to rotate.

[0012] Further, the adjusting assembly comprises a fixed table provided with an electric push rod and an adjusting block arranged at one end of the fixed table, the telescopic end of the electric push rod is fixedly connected with the adjusting block, and the fixed table is fixedly connected with the sliding seat.

[0013] Further, the guiding mechanism comprises at least two guide rods, one end of the guide rod is fixedly connected with the fixed table, the other end penetrates through the mounting base plate, the guide rod is in sliding fit with the mounting base plate, and a wear-resistant chromium plating layer is arranged on the surface of the guide rod.

[0014] Further, the lifting mechanism comprises an assembling plate fixedly connected with the pushing plate, a transmission motor arranged on the pushing plate, a connecting block arranged on the pushing plate and a fixed plate arranged on one side of the mounting base plate, the fixed plate is provided with an opening for the insertion of the connecting block, the output shaft of the transmission motor is connected with the mounting base plate, the connecting block is inserted into the opening and can move along the opening, and when the transmission motor rotates, the mounting base plate is driven to move synchronously.

[0015] Further, the pushing plate is made of aluminum alloy.

[0016] Further, one side of the pushing plate is provided with a polyurethane buffer strip.

[0017] Compared with the prior art, the application has the following beneficial effects: the application effectively improves the adaptability of the equipment to different specifications of material frames and PCBs through the multi-directional adjustable pushing structure. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are included to provide a further understanding of the application, and constitute a part of the specification, illustrate the application, and are used to explain the application together with the embodiments of the application, and do not constitute a limitation on the application.

[0019] Fig. 1 It is a first structural schematic diagram of the application.

[0020] Fig. 2 It is a second structural schematic diagram of the application.

[0021] Fig. 3 It is a third structural schematic diagram of the application.

[0022] In the figure: 1, vacuum generator; 2, sensor; 3, assembly plate; 4, main frame body; 6, sliding seat; 9, mounting base plate; 10, push plate; 11, adjusting block; 12, polyurethane buffer strip; 13, fixed table; 14, servo motor; 16, ball screw; 17, rotary motor; 19, synchronous wheel; 20, belt; 21, push plate gripper; 22, bearing; 23, sliding block; 24, push rod mounting seat; 25, guide rail; 26, driving motor; 33, electric push rod; 34, guide rod; 36, transmission motor; 39, connecting block; 40, fixed plate; 50, opening. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the application more clear, the following will combine the technical scheme in the embodiments of the application to make a clear and complete description, obviously, the described embodiments are part of the embodiments of the application, not all the embodiments.

[0024] In the description of the present application, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application. When a component is referred to as "fixed to" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there can be a middle component. When a component is referred to as "disposed on" another component, it can be directly disposed on the other component or there can be a middle component. The terms "vertical", "horizontal", "left", "right" and the like used herein are for illustrative purposes only.

[0025] As shown in Figs. 1 to 3 An automatic double-track PCB unloading machine comprises a pushing mechanism, a lifting mechanism and a main frame body 4. A transverse driving module is installed on the upper part of the main frame body 4, the output end of which is connected with a sliding seat 6, so that the sliding seat 6 can be connected with the main frame body 4 in a sliding manner. An adjusting assembly is fixed below the sliding seat 6, and the pushing mechanism is connected to one end of the adjusting assembly away from the sliding seat 6. A guide mechanism is fixed to one end of the sliding seat 6 and penetrates the pushing mechanism, playing a guiding role between the pushing mechanism and the sliding seat 6.

[0026] The pushing mechanism comprises a mounting base plate 9, a pushing plate 10, a vacuum generator 11 and a pushing rod mechanism. The mounting base plate 9 is fixed to the lower end of the adjusting assembly. The pushing plate 10 is installed on the front side of the mounting base plate 9 in a hinged manner and can rotate flexibly. The vacuum generator 11 is fixed to the mounting base plate 9 and is connected with the pushing plate 10 through an air pipe to generate an adsorption force to adsorb the PCB board.

[0027] The pushing mechanism comprises a mounting base plate 9, a pushing plate 10, a vacuum generator 11 and a pushing rod mechanism. The mounting base plate 9 is fixedly connected with the adjusting block 11 of the adjusting assembly and is located at the lower end of the adjusting assembly. The pushing plate 10 is installed on the front side of the mounting base plate 9 in a hinged manner. This connection form enables the pushing plate 10 to rotate around the hinge point by a certain angle, so as to better adapt to different working scenes when pushing the PCB board. The vacuum generator 11 is fixed to the main frame body 4, the pushing plate 10 has a hollow structure and is provided with a plurality of small holes on the outer surface thereof, and the pushing plate 10 is connected with the pushing plate 10 through an air pipe. In operation, a negative pressure can be generated on the surface of the pushing plate 10, so as to firmly adsorb the PCB board and ensure that the PCB board will not fall off during the pushing process.

[0028] The push rod mechanism consists of a rotary motor 17, synchronous pulleys 19, a belt 20, a push plate gripper 21, a bearing 22, a slider 23, and a push rod mounting base 24. A guide rail 25 is provided on one side of the mounting base 9. The slider 23 is fixed to the guide rail 25 by bolts or other means, ensuring smooth sliding on the guide rail 25. The belt 20 is mounted on the push plate mounting base 24 and connected to the slider 23, with its two ends fixed to the synchronous pulleys 19 on both sides. One synchronous pulley 19 is tightly fixed to the output shaft of the rotary motor 17, and the other synchronous pulley 19 is fixedly connected to one end of the mounting base 9. The pusher gripper 21 is mounted on the slider 23. When the rotary motor 17 starts running, it drives the synchronous wheel 19 connected to it to rotate. The synchronous wheel 19 on the other side is driven to rotate through the belt 20, which in turn causes the belt 20 to move. Since the slider 23 is connected to the belt 20 and slides on the guide rail 25, the pusher gripper 21 eventually moves along the direction of the guide rail 25 to complete the gripping and pushing operation of the PCB board.

[0029] A sensor 2 is installed at one end of the push rod mounting base 24. This sensor 2 is electrically connected to the rotary motor 17 via a wire. The function of the sensor 2 is to detect whether a PCB board needs to be pushed. When a PCB board is detected, it sends a signal to the rotary motor 17 to control the start and stop of the rotary motor 17, thereby realizing the automated gripping and pushing of the PCB board by the pusher gripper 21. The pusher gripper 21 is connected to the belt 20 via a slider 23. This connection method allows the pusher gripper 21 to move precisely as the rotary motor 17 drives the belt 20, ensuring the accuracy and efficiency of the pushing action.

[0030] The lifting mechanism includes an assembly plate 2 fixedly connected to the push plate 10, which provides a mounting base for other components of the lifting mechanism. A drive motor 36 and a connecting block 39 are both mounted on the push plate 10, while a fixing plate 40 is located on one side of the mounting base plate 9. The fixing plate 40 has an opening 50 for the insertion of the connecting block 39, and the output shaft of the drive motor 36 is connected to the mounting base plate 9. When the drive motor 36 starts rotating, its output shaft drives the mounting base plate 9 to move, and simultaneously, the connecting block 39 moves accordingly within the opening 50, realizing the lifting motion of the mounting base plate 9. This, in turn, drives the entire pushing mechanism to lift vertically, adapting to material frames of different heights or meeting different unloading requirements.

[0031] The push plate 10 is made of aluminum alloy material. The aluminum alloy has the characteristics of light weight and high strength. It can not only reduce the weight of the whole pushing mechanism and reduce energy consumption, but also ensure that the push plate 10 has enough strength and rigidity during work to meet the requirements of pushing the PCB board. A polyurethane buffer strip 12 is arranged on one side of the push plate 10. The polyurethane has good buffering performance and wear resistance. When the push plate 10 pushes the PCB board to contact the frame or other parts, the polyurethane buffer strip 12 can play a buffering role to avoid damage to the PCB board or related parts, and also reduce the wear of the push plate 10 during the collision process, prolong the service life of the push plate 10.

[0032] Work flow: adjustment mechanism: when it is necessary to adjust the height of the frame to adapt to the discharging requirements of different batches of PCB boards, the driving motor 36 of the lifting mechanism is started. The driving motor 36 is fixed on the push plate 10, and its output shaft is connected with the mounting base plate 9; the driving motor 36 rotates, and its output shaft drives the mounting base plate 9 to move. At the same time, the connecting block 39 on the push plate 10 moves correspondingly in the hole 50 on the fixed plate 40, so as to realize the lifting of the mounting base plate 9 and the frame connected therewith in the vertical direction.

[0033] Horizontal position adjustment: when the equipment receives the discharging instruction, the servo motor 14 of the horizontal driving module is started. The servo motor 14 is fixed on the mounting base plate 9, and its output shaft drives the ball screw 16 to rotate. Since the sliding seat 6 is connected with the nut of the ball screw 16 and slides on the guide rail of the main frame body 4, the rotation of the ball screw 16 makes the sliding seat 6 move horizontally along the length direction of the main frame body 4. At the same time, the adjusting assembly and the pushing mechanism fixedly connected with the sliding seat 6 also move horizontally until the pushing mechanism reaches the position directly above the PCB board to be discharged on the conveying belt.

[0034] PCB plate grabbing: after the sensor 2 at one end of the push rod mounting base 24 detects the PCB plate on the conveying belt, a signal is sent to the rotating motor 17 through the wire. The rotating motor 17 is started to drive the synchronous wheel 19 fixed on the output shaft thereof to rotate. The synchronous wheel 19 drives another synchronous wheel 19 fixed at one end of the mounting base plate 9 to rotate through the belt 20, so that the belt 20 moves. Since the push plate gripper 21 is connected with the belt 20 through the sliding block 23, and the sliding block 23 slides on the guide rail 25 at one side of the mounting base plate 9, the push plate gripper 21 moves along the guide rail 25 to the PCB plate along with the movement of the belt 20. When the push plate gripper 21 moves to the appropriate position above the PCB plate, the vacuum generator 11 starts to work to generate negative pressure on the surface of the push plate 10 through the air pipe, so that the PCB plate is firmly adsorbed on the push plate 10. The fixed plate is provided with a frame, then the rotating motor 17 continuously rotates to drive the push plate gripper 21 and the adsorbed PCB plate to move along the guide rail 25 to the frame direction. The push plate gripper 21 pushes the PCB plate into the frame located on the lifting mechanism fixed plate 40. After the PCB plate is successfully pushed in, the reverse rotation of the rotating motor 17 drives the synchronous wheel 19 and the belt 20 to move reversely, so that the push plate gripper 21 returns to the initial position along the guide rail 25, waiting for the next grabbing instruction.

[0035] The standard parts used in the present application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings. The specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art. The mechanical parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here. The contents not described in detail in the present specification belong to the prior art known to those skilled in the art.

[0036] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall fall within the protection scope of the appended claims of the present application.

Claims

1. A dual-track cutting machine for PCB boards, characterized in that: The device includes a pushing mechanism, a lifting mechanism, and a double-rail frame. The double-rail frame includes a main frame (4), a transverse drive module, a sliding seat (6), an adjustment component, and a guide mechanism. The transverse drive module is installed on the upper part of the main frame (4). The sliding seat (6) is connected to the output end of the transverse drive module and is slidably connected to the main frame (4). The adjustment component is fixedly connected to the sliding seat (6) and located below it. The pushing mechanism is fixedly connected to the end of the adjustment component away from the sliding seat (6). The guide mechanism is fixedly connected to the sliding seat (6), passes through the pushing mechanism, and is located between the pushing mechanism and the sliding seat (6).

2. The dual-track cutting machine for PCB boards as described in claim 1, characterized in that: The pushing mechanism includes a mounting base (9), a push plate (10), a vacuum generator (1), and a push rod mechanism. The mounting base (9) is fixedly connected to the adjustment assembly and is located at its lower end. The push plate (10) is hinged to the front side of the mounting base (9). The vacuum generator (11) is fixedly connected to the main frame (4). The vacuum generator (1) is connected to the inside of the push plate (10) through an air pipe.

3. The dual-rail cutting machine for PCB boards as described in claim 2, characterized in that: The lateral drive module includes a servo motor (14) and a ball screw (16). The servo motor (14) is fixedly connected to the mounting base plate (9), and the ball screw (16) is connected to the output end of the servo motor (14).

4. The dual-rail cutting machine for PCB boards as described in claim 3, characterized in that: The push rod mechanism includes a rotary motor (17), a synchronous pulley (19), a belt (20), a push plate gripper (21), a bearing (22), a slider (23), and a push rod mounting base (24). The push plate gripper (21) is mounted on the slider (23), the belt (20) is mounted on the push plate mounting base (24) and connected to the slider (23). A guide rail (25) is provided on one side of the mounting base (9), the slider (23) is fixed on the guide rail (25), and both ends of the belt (20) are fixed on the synchronous pulleys (19) on both sides. One of the synchronous pulleys (19) is fixed on the rotary motor (17), and the other synchronous pulley (19) is fixedly connected to one end of the mounting base (9).

5. A dual-track cutting machine for PCB boards as described in claim 4, characterized in that: One end of the push rod mounting base (24) is provided with a sensor (2) that is wired to the rotary motor (17). The push plate gripper (21) is connected to the belt (20) through the slider (23), so that the push plate gripper (21) can move as the drive motor (26) drives the belt (20) to rotate.

6. The dual-rail cutting machine for PCB boards as described in claim 5, characterized in that: The adjustment assembly includes a fixed platform (13) with an electric push rod (33) and an adjustment block (11) located at one end of the fixed platform (13). The telescopic end of the electric push rod (33) is fixedly connected to the adjustment block (11), and the fixed platform (13) is fixedly connected to the sliding seat (6).

7. A dual-track cutting machine for PCB boards as described in claim 6, characterized in that: The guiding mechanism (8) includes at least two guide rods (34). One end of the guide rod (34) is fixedly connected to the fixed platform (13), and the other end passes through the mounting base plate (9). The guide rod (34) slides with the mounting base plate (9), and the surface of the guide rod (34) is provided with a wear-resistant chrome plating layer.

8. A dual-track cutting machine for PCB boards as described in claim 7, characterized in that: The lifting mechanism includes an assembly plate (3) fixedly connected to the push plate (10), a drive motor (36) on the push plate (10), a connecting block (39) on the push plate (10), and a fixing plate (40) on one side of the mounting base plate (9). The fixing plate 40 has an opening (50) for inserting the connecting block (39). The output shaft of the drive motor (36) is connected to the mounting base plate (9). The connecting block (39) is inserted into the opening (50) and can move along the opening (50). When the drive motor (36) rotates, it synchronously drives the mounting base plate (9) to move.

9. A dual-rail cutting machine for PCB boards as described in claim 8, characterized in that: The push plate (10) is made of aluminum alloy.

10. A dual-rail cutting machine for PCB boards as described in claim 9, characterized in that: A polyurethane buffer strip (12) is provided on one side of the push plate (10).

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