An automatic device for disassembling waste circuit boards

Abstract

The present invention discloses an automatic device for disassembling waste circuit boards, comprising: a disk-shaped workbench, a tin bath arranged around the workbench, and a material box. A driving module for driving the workbench to rotate is arranged at the lower end of the workbench; a plurality of flipping, shaking and clamping devices are evenly arranged around the center of the workbench; a lifting module for lifting the entire tin bath is arranged at the lower end of the tin bath, realizing automatic molten tin recovery of waste circuit boards, with high recovery efficiency, without the need for too many workers to participate in the recovery process, effectively reducing labor, and during the recovery process, workers only need to be responsible for the relatively safe feeding work, effectively improving the safety of workers.

Description

Technical Field

[0001] The present invention relates to the field of mechanical devices, in particular to an automatic device for disassembling waste circuit boards. Background Art

[0002] The printed circuit board (PCB) industry is the foundation of the electronics and electrical appliance industry, with both massive production and consumption. The incineration of large quantities of waste PCBs produces toxic gases, while those left outside or simply landfilled, exposed to the sun and rain, can pollute surrounding land and water resources with heavy metals. Therefore, the effective treatment and utilization of waste PCBs is an urgent issue, as waste PCBs contain a large amount of recyclable tin resources.

[0003] However, the molten tin recycling of waste circuit boards currently adopts manual clamping, which has the problems of low clamping efficiency and high risk. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0005] An automatic device for dismantling waste circuit boards, comprising: a disc-shaped workbench, a tin pool and a material box arranged around the workbench, wherein a driving module for driving the workbench to rotate is arranged at the lower end of the workbench;

[0006] The workbench is evenly provided with a plurality of flipping, shaking and clamping devices around the center of the circle;

[0007] The lower end of the tin pool is provided with a lifting module for lifting the tin pool as a whole.

[0008] As a further solution of the present invention: the rotating, shaking and clamping device includes: a shaking seat mounting plate, a shaking motor is installed at an upper position of the rear end of the shaking seat mounting plate, a reducer is installed at the lower end of the shaking motor to cooperate with the transmission, the transmission shaft of the reducer passes through the shaking seat mounting plate and extends to the front end of the shaking seat mounting plate, and a shaking cam is installed on the transmission shaft of the reducer;

[0009] The front end surface of the shaking seat mounting plate is provided with a plurality of linear slide rails extending vertically downward, and a slider that slides and cooperates with the linear slide rails is installed on the linear slide rails;

[0010] A shaking claw motion seat is provided at the front end surface of the shaking seat mounting plate, and a rear end surface of the shaking claw motion seat is fixedly connected to the slider;

[0011] A shaking bearing is mounted on the shaking claw motion seat, and the shaking bearing is located above the shaking cam and within the far hub radius of the shaking cam;

[0012] A spring base is also provided on the lower side of the front end surface of the shaking seat mounting plate;

[0013] A spring top seat is provided on the rear end surface of the shaking claw movement seat, and the spring top seat is located at the upper end of the spring base;

[0014] A shaking spring is provided between the spring base and the spring top seat;

[0015] A rotating cylinder is installed on the front end surface of the shaking claw motion seat. The rotating shaft of the rotating cylinder extends forward, and a pneumatic clamping claw device is installed on the rotating shaft of the rotating cylinder.

[0016] As a further solution of the present invention: the number of the linear slide rails is two, and the two linear slide rails are arranged parallel to each other.

[0017] As a further solution of the present invention: the shaking spring is an L-shaped tension spring.

[0018] As a further solution of the present invention: the pneumatic clamping device includes: a fixed base, a rotating cylinder is installed at the front end of the fixed base, the rotating axis of the rotating cylinder extends forward, and the pneumatic clamping device is installed on the rotating axis of the rotating cylinder;

[0019] The pneumatic clamping device comprises: a clamping clamping seat mounting plate, the rear end surface of which is fixedly connected to the rotating shaft of the rotary cylinder;

[0020] The front end surface of the clamping jaw fixed shaking seat mounting plate is provided with a transversely arranged dovetail slide rail, a pair of fixed seat strips are installed on the dovetail slide rail, the rear end of the fixed seat strip is provided with a dovetail groove that fits with the dovetail slide rail, and the front end surface of the fixed seat strip is provided with a vertically downwardly arranged T-shaped slide rail;

[0021] The fixed seat bar is provided with an upper clamping jaw and a lower clamping jaw distributed up and down, and the rear end surface of the upper clamping jaw is provided with a T-shaped sliding groove that fits with the T-shaped slide rail;

[0022] The rear end surface of the lower clamping jaw is fixedly connected to the fixed pressure strip;

[0023] A lifting cylinder is also provided in the middle of the front end surface of the clamping jaw fixing seat mounting plate, and the telescopic rod of the lifting cylinder is telescopically extended upward. A horizontally arranged connecting strip is installed on the telescopic rod of the lifting cylinder, and the connecting strip extends to both sides and is fixedly connected to the upper clamping jaws on both sides.

[0024] As a further solution of the present invention: the upper clamping jaw and the lower clamping jaw form a clamping jaw group with a triangular plate structure;

[0025] The upper clamping jaw is provided with a plurality of clamping columns extending vertically downward;

[0026] A number of upwardly protruding clamping points are provided on the lower clamping jaw, and a clamping column is aligned with one clamping point. When the upper clamping jaw and the lower clamping jaw are closed, the aligned clamping column and clamping point are in contact with each other.

[0027] As a further solution of the present invention: The upper clamping jaw and the lower clamping jaw are made of one of titanium alloy material or stainless steel.

[0028] As a further solution of the present invention: A working solenoid valve group is further provided on the workbench, and the working solenoid valve group is electrically connected to the lifting cylinder.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: It realizes the automated molten tin recovery of waste circuit boards, with high recovery efficiency. During the recovery process, it does not require the participation of too many workers, effectively reducing the labor force. And during the recovery process, workers only need to be responsible for the relatively safe feeding work, effectively improving the safety of workers.

[0030] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0032] Figure 1 It is a schematic structural diagram of the present invention.

[0033] Figure 2 It is a schematic structural diagram of the flipping, shaking and clamping device in the present invention.

[0034] Figure 3 It is a schematic structural diagram of the spring base in the present invention.

[0035] Figure 4 It is a schematic structural diagram of the pneumatic clamping jaw device in the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0037] Please refer to Figures 1 to 4, in an embodiment of the present invention, an automatic waste circuit board disassembling device includes: a disc-shaped workbench 108, a tin bath 104 and a material box 107 arranged around the workbench 108. A driving module 106 for driving the rotation of the workbench 108 is provided at the lower end of the workbench 108;

[0038] A number of flipping, shaking and clamping devices 102 are evenly arranged around the center of the workbench 108;

[0039] A lifting module 104 for lifting the entire tin bath 104 is provided at the lower end of the tin bath 104.

[0040] The circuit board is manually loaded and stably clamped on a flipping, shaking and clamping device 102 with the electronic components of the circuit board facing up and the pin solder joints of the solder surface facing down. Then, the workbench 108 rotates to bring the flipping, shaking and clamping device 102 to the upper end of the tin bath 104. The tin bath 104 rises so that the pins of the circuit board enter the tin bath 104 for tin melting. After the tin melting is completed, the tin bath 104 descends, and the flipping, shaking and clamping device 102 drives the circuit board to shake, and the melted tin under the circuit board is shaken into the tin bath 104;

[0041] Then, the workbench 108 drives the flipping, shaking and clamping device 102 to move into the material box 107 again. Then, by shaking and using the self-weight and mechanical inertia of the circuit board, the circuit board is shaken into the part material box 107 to complete the processing.

[0042] Further, the flipping, shaking and clamping device includes: a shaking seat mounting plate 3. A shaking motor 1 is installed above the rear end of the shaking seat mounting plate 3. A speed reducer 10 that is in transmission cooperation with the shaking motor 1 is installed at the lower end of the shaking motor 1. The transmission shaft of the speed reducer 10 passes through the shaking seat mounting plate 3 and extends towards the front end of the shaking seat mounting plate 3. A shaking cam 2 is installed on the transmission shaft of the speed reducer 10;

[0043] A number of linear slide rails 5 extending vertically downward are provided on the front end face of the shaking seat mounting plate 3. Sliders 4 that are slidably engaged with the linear slide rails 5 are installed on the linear slide rails 5;

[0044] A shaking claw moving seat 8 is provided at the front end face position of the shaking seat mounting plate 3. The rear end face of the shaking claw moving seat 8 is fixedly connected to the slider 4;

[0045] A shaking bearing 9 is installed on the shaking claw moving seat 8. The shaking bearing 9 is located above the shaking cam 2 and within the range of the outer radius of the shaking cam 2;

[0046] A spring base 31 is further provided at the lower side of the front end face of the shaking seat mounting plate 3;

[0047] A spring top seat 81 is provided on the rear end face of the jitter claw moving seat 8, and the spring top seat 81 is located above the spring base 31;

[0048] A jitter spring 11 is provided between the spring base 31 and the spring top seat 81;

[0049] A rotary cylinder 7 is installed on the front end face of the jitter claw moving seat 8. The rotating shaft of the rotary cylinder 7 extends forward, and a pneumatic gripper device 6 is installed on the rotating shaft of the rotary cylinder 7; The pneumatic gripper device 6 can be driven by the rotary cylinder 7 to achieve a 0-180° flip, so as to achieve a 0-180° flip of the control circuit board (the actual flip angle is adjusted according to requirements) for observation.

[0050] In the molten tin and flinging tin work of the waste circuit board, the waste circuit board is clamped by the pneumatic gripper device 6. After the circuit board is immersed in the tin bath 104 for molten tin, the jitter motor 1 drives the reducer 10 to work, and the reducer 10 drives the jitter cam 2 to rotate. The rotation of the jitter cam 2 will contact the jitter bearing 9, and the jitter bearing 9 will push the entire jitter claw moving seat 8 upward. The jitter claw moving seat 8 will rise along the linear slide rail 5 with the slider 4, and the rising of the jitter claw moving seat 8 will stretch and deform the jitter spring 11;

[0051] When the jitter cam 2 resets, the thrust of the jitter cam 2 on the jitter bearing 9 disappears, and the jitter spring 11 resets, pulling back the jitter claw moving seat 8, so that the waste circuit board clamped on the pneumatic gripper device 6 has a vertical drop. Through repeated work, the jitter claw moving seat 8 realizes a working state similar to jitter, so as to shake off the melted solder on the waste circuit board;

[0052] At the same time, the blanking work of the waste circuit board can be realized through such a jitter method.

[0053] The number of the linear slide rails 5 is two, and the two linear slide rails 5 are arranged in parallel to improve the smoothness and stability of sliding.

[0054] The spring is an L-shaped tension spring, and this kind of spring structure has strong tensile force.

[0055] Further, the pneumatic gripper device 6 includes: a fixed seat, a rotary cylinder 7 is installed at the front end of the fixed seat, the rotating shaft of the rotary cylinder 7 extends forward, and a pneumatic gripper device 6 is installed on the rotating shaft of the rotary cylinder 7;

[0056] The pneumatic gripper device 6 can be driven by the rotary cylinder 7 to achieve a 0-180° flip, so as to achieve a 0-180° flip of the control circuit board (the actual flip angle is adjusted according to requirements) for observation.

[0057] Furthermore, the pneumatic clamping device 6 includes: a clamping clamping seat mounting plate 31, the rear end surface of the clamping clamping seat mounting plate 31 is fixedly connected to the rotating shaft of the rotary cylinder 7;

[0058] The front end surface of the clamping jaw fixed shaking seat mounting plate 31 is provided with a transversely arranged dovetail slide rail 33, and a pair of fixed seat bars 32 are installed on the dovetail slide rail 33. The rear end of the fixed seat bar 32 is provided with a dovetail groove that fits with the dovetail slide rail 33, and the front end surface of the fixed seat bar 32 is provided with a vertically downwardly arranged T-shaped slide rail;

[0059] The fixed seat bar 32 is provided with an upper clamping jaw 34 and a lower clamping jaw 35 distributed up and down, and the rear end surface of the upper clamping jaw 34 is provided with a T-shaped sliding groove that fits with the T-shaped slide rail;

[0060] The use of the laterally opposed upper and lower double clamps can place the molten tin pool 104 stably. The upper clamping jaw 34 and the lower clamping jaw 35 are horizontally opposed to each other, supporting the circuit board or the waste circuit board so that the circuit board or the waste circuit board can be placed horizontally on the molten tin pool 104, and the problem of insufficient molten tin in some areas due to uneven placement will not occur.

[0061] The rear end surface of the lower clamping jaw 35 is fixedly connected to the fixed pressure strip;

[0062] A lifting cylinder 36 is further provided in the middle of the front end surface of the clamping jaw fixed shaking seat mounting plate 31. The lifting cylinder 36 is a thin cylinder with large torque and adjustable pressure. The telescopic rod of the lifting cylinder 36 is vertically extended and retracted upward. A horizontally arranged connecting strip 37 is installed on the telescopic rod of the lifting cylinder 36. The connecting strip 37 extends to both sides and is fixedly connected to the upper clamping jaws 34 on both sides respectively.

[0063] A thin air cylinder with high torque and adjustable pressure is used to control the clamping force of the upper clamping jaw 34 and the lower clamping jaw 35, which can effectively adapt to circuit boards or waste circuit boards of different thicknesses and weights.

[0064] In the process of clamping the waste circuit boards:

[0065] By adjusting the position of the fixing seat bar 32 on the clamping jaw fixing seat mounting plate 31, the distance between the two sets of clamping jaws can be adjusted to accommodate waste circuit boards of different sizes.

[0066] The lifting cylinder 36 pushes its telescopic rod upward, thereby driving the upper clamping jaw 34 to move upward along the T-shaped slide rail on the fixed seat bar 32 through the connecting bar 37 to open the clamping jaw. The waste circuit board is manually placed on the lower clamping jaw 35, and then the lifting cylinder 36 is reset, and the upper clamping jaw 34 and the lower clamping jaw 35 are merged to achieve the clamping work of the waste circuit board.

[0067] The multi-point clamping of the comparison circuit board is achieved through the upper clamping jaw 34 and the lower clamping jaw 35 of this structure, which improves the stability of clamping the circuit board or the waste circuit board while ensuring that the circuit structure of the circuit board or the waste circuit board will not be pressed;

[0068] At the same time, the clamping of the irregularly structured circuit board is achieved through the structure of point clamping.

[0069] The upper clamping jaw 34 is made of stainless steel material, which has the advantages of not rusting, corrosion resistance, high temperature resistance, wear resistance, and moderate rigidity;

[0070] The lower clamping jaw 35 is made of titanium alloy material. Since the lower clamping jaw 35 needs to enter the tin bath 104, the lower clamping jaw 35 made of titanium alloy material can withstand high temperatures from 100°C to 400°C, and will not deform, relax, or have unstable clamping in the high-temperature tin bath 104.

[0071] Furthermore, a working solenoid valve group 103 is also provided on the workbench 108. The working solenoid valve group 103 is electrically connected to the lifting cylinder 36, and the torque control of the lifting cylinder 36 is achieved through the working solenoid valve group 103.

[0072] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention.

Claims

1. An automatic device for dismantling waste circuit boards, characterized in that: include: A disc-shaped workbench, a tin pool and a material box are arranged around the workbench, and a driving module for driving the workbench to rotate is arranged at the lower end of the workbench; The workbench is evenly provided with a plurality of flipping, shaking and clamping devices around the center of the circle; The lower end of the tin pool is provided with a lifting module for lifting the tin pool as a whole; The flipping, shaking and clamping device includes: a shaking seat mounting plate, a shaking motor is installed at an upper position of the rear end of the shaking seat mounting plate, a reducer is installed at the lower end of the shaking motor and is matched with the reducer, the transmission shaft of the reducer passes through the shaking seat mounting plate and extends to the front end of the shaking seat mounting plate, and a shaking cam is installed on the transmission shaft of the reducer; The front end surface of the shaking seat mounting plate is provided with a plurality of linear slide rails extending vertically downward, and a slider that slides and cooperates with the linear slide rails is installed on the linear slide rails; A shaking claw motion seat is provided at the front end surface of the shaking seat mounting plate, and a rear end surface of the shaking claw motion seat is fixedly connected to the slider; A shaking bearing is mounted on the shaking claw motion seat, and the shaking bearing is located above the shaking cam and within the far hub radius of the shaking cam; A spring base is also provided on the lower side of the front end surface of the shaking seat mounting plate; A spring top seat is provided on the rear end surface of the shaking claw movement seat, and the spring top seat is located at the upper end of the spring base; A shaking spring is provided between the spring base and the spring top seat; A rotary cylinder is mounted on the front end of the shaking claw motion seat, the rotary axis of the rotary cylinder extends forward, and a pneumatic clamping claw device is mounted on the rotary axis of the rotary cylinder; There are two linear slide rails, and the two linear slide rails are arranged parallel to each other; The shaking spring is an L-shaped tension spring.

2. The automatic equipment for dismantling waste circuit boards according to claim 1, characterized in that: The pneumatic clamping device comprises: a fixed base, a rotating cylinder is installed at the front end of the fixed base, the rotating shaft of the rotating cylinder extends forward, and the pneumatic clamping device is installed on the rotating shaft of the rotating cylinder; The pneumatic clamping device comprises: a clamping clamping seat mounting plate, the rear end surface of which is fixedly connected to the rotating shaft of the rotary cylinder; The front end surface of the clamping jaw fixed shaking seat mounting plate is provided with a transversely arranged dovetail slide rail, a pair of fixed seat strips are installed on the dovetail slide rail, the rear end of the fixed seat strip is provided with a dovetail groove that fits with the dovetail slide rail, and the front end surface of the fixed seat strip is provided with a vertically downwardly arranged T-shaped slide rail; The fixed seat bar is provided with an upper clamping jaw and a lower clamping jaw distributed up and down, and the rear end surface of the upper clamping jaw is provided with a T-shaped sliding groove that fits with the T-shaped slide rail; The rear end surface of the lower clamping jaw is fixedly connected to the fixed pressure strip; A lifting cylinder is also provided in the middle of the front end surface of the clamping jaw fixing seat mounting plate, and the telescopic rod of the lifting cylinder is telescopically extended upward. A horizontally arranged connecting strip is installed on the telescopic rod of the lifting cylinder, and the connecting strip extends to both sides and is fixedly connected to the upper clamping jaws on both sides.

3. The automatic equipment for dismantling waste circuit boards according to claim 2, characterized in that: The upper clamping jaw and the lower clamping jaw form a clamping jaw group with a triangular plate structure; The upper clamping jaw is provided with a plurality of clamping columns extending vertically downward; The lower clamping jaw is provided with a plurality of upwardly protruding clamping points, a clamping column is aligned with a clamping point, and when the upper clamping jaw and the lower clamping jaw are closed, the clamping columns and clamping points aligned with each other fit together.

4. The automatic equipment for dismantling waste circuit boards according to claim 2, characterized in that: The upper clamping jaw and the lower clamping jaw are made of titanium alloy material or stainless steel.

5. The automatic equipment for dismantling waste circuit boards according to claim 2, characterized in that: The workbench is also provided with a working electromagnetic valve group, which is electrically connected to the lifting cylinder.

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