An anti-adhesion linkage feeding and conveying system for plate punching production line

Abstract

The present invention discloses an anti-adhesion linkage feeding and conveying system for a plate punching operation line, comprising a feeding device, a conveying device, a feeding limiting device and an intelligent control system. The present invention sets a feeding limiting device to limit the stacked plates during the feeding process. After the suction cup on the feeding arm absorbs the uppermost plate, the limiting device is activated. If the plate is adhered at this time, the limiting plate will resist the movement of the extra plate being grasped, and make the plate stay in the original position, so as to achieve accurate feeding and prevent the problem of vacuum adsorption feeding and adhesion.

Description

Technical Field

[0001] The invention belongs to the technical field of furniture processing, and in particular relates to an anti-adhesion linkage feeding and conveying system for a plate punching operation line. Background Art

[0002] With the development of automation technology, the furniture manufacturing industry is increasingly turning to automated technological transformation. The feeding and discharging of machines are gradually becoming automated. In the automated feeding section, breaking the vacuum and preventing the adhesion of the workpiece is a problem that must be faced.

[0003] When loading furniture workpieces in a tray, due to the air permeability of the material, the degree of fit of the workpieces, and the adhesion of glue on the edges, the robot may stick to each other when grabbing the workpieces: the goal is to grab one layer of workpieces, but in reality, 3-4 layers of workpieces may be grabbed, which will cause a series of negative effects and greatly reduce the reliability of equipment operation. Sometimes, there will even be extreme situations where equipment is damaged and personnel are injured.

[0004] The machine has high requirements for the panels to be fed: ① They cannot be plain, the surface of the panels needs to be treated to reduce air permeability; ② The time the panels have been placed, the longer they are placed, the tighter the fit between the panels and the easier it is to stick together; ③ The cleanliness of the panels, residual glue on the edges, etc., may aggravate the mutual adhesion between the panels.

[0005] The reliability of equipment operation is poor. Due to problems caused by the adhesion between panels, it is necessary to shut down the machine for manual intervention, and this situation occurs frequently. Troubleshooting daily production equipment anomalies takes up a lot of time.

[0006] In summary, the existing feeding system has the following defects:

[0007] High safety risk: Frequent abnormalities and personnel entering and leaving the robot's working area pose great safety risks.

[0008] The suction cup grabbing cycle is not fixed: the height of the table where the plate is released is fixed, but the height is gradually reduced and keeps changing as each plate is grabbed layer by layer. The distance between the starting point and the end point is constantly changing, and the grabbing cycle will also change.

[0009] Therefore, in response to the above problems, it is necessary to research and develop a new type of linkage feeding automation equipment to accurately feed the punched plates. Summary of the invention

[0010] Purpose of the invention: The purpose of the present invention is to address the deficiencies in the prior art and to provide an anti-adhesion linkage feeding and conveying system for a plate punching operation line that is easy to operate and has high feeding accuracy.

[0011] Technical solution: The anti-adhesion linkage feeding and conveying system for a plate punching operation line described in the present invention comprises a feeding device, a conveying device, a feeding limit device and an intelligent control system;

[0012] The feeding device includes an electric lifting platform, a material support and a loading arm. The electric lifting platform is located upstream of the conveying device, the material support is fixed on the electric lifting platform, the loading arm is located above the material support, and a loading suction cup is provided below the loading arm. The loading suction cup is connected to a negative pressure system, and the loading arm is driven to operate by a loading arm power system;

[0013] The conveying device comprises a conveying frame, a conveying roller and a conveying power system, wherein the conveying roller is fixed on the conveying frame, and the conveying power system is fixed on the bottom of the conveying frame;

[0014] The feeding limit device is arranged on the conveyor frame and is located below the conveyor roller, and includes a limit drive system, a limit support plate and a telescopic linkage component. The limit drive system is fixed on the conveyor frame, one end of the telescopic linkage component is connected to the limit drive system, and the other end is connected to the limit support plate. The telescopic linkage component is driven to move by the limit drive system. The conveyor frame is provided with a guide structure that cooperates with the telescopic linkage component to guide the telescopic linkage component to telescope along the direction of the conveyor frame, and the telescopic linkage component drives the limit support plate to telescope along the direction of the conveyor frame; a photoelectric sensor is provided on the limit support plate to sense the position of the plate on the feeding device and transmit the sensing signal to the intelligent control system, and the intelligent control system controls the lifting amplitude of the electric lifting platform, the telescopic range of the feeding limit device and the operation of the feeding arm according to the received photoelectric sensor signal.

[0015] Further, the limit drive system includes a limit drive motor, a motor mounting bracket and a coupling, the motor mounting bracket is fixed to the conveyor frame, the rotating shaft of the limit drive motor passes through the motor mounting bracket and is fixed to the conveyor frame through the motor mounting bracket, and the coupling is connected to the rotating shaft of the limit drive motor;

[0016] The telescopic linkage assembly includes a transmission screw, a first screw mounting bracket, a movable push plate and a pair of guide shafts, the first screw mounting bracket is fixed on the motor mounting bracket, the transmission screw passes through the first screw mounting bracket and is connected to the rotating shaft of the limit drive motor through the coupling, the second screw mounting bracket is installed in the middle of the movable push plate, and the corresponding positions of the middle of the movable push plate and the second screw mounting bracket are provided with screw penetration holes; guide shaft mounting holes are provided on both sides of the movable push plate, one end of the guide shaft is installed on the movable push plate through the mounting holes, each of the guide shafts is provided with a guide slide block, and a guide slide groove matching the guide slide block is provided at a corresponding position on the conveying frame, and the limit support plate is fixed to the other end of the guide shaft.

[0017] Furthermore, the electric lifting platform is a scissors-type lifting platform.

[0018] Furthermore, the electric lifting platform is an electric lifting platform driven by a motor and a lead screw in linkage.

[0019] Furthermore, in order to better avoid adhesion between the plates and assist in smooth material loading, an automatic telescopic insert assembly is provided at the front end of the limiting support plate.

[0020] Furthermore, the automatic telescopic plug assembly includes a pair of plugs, a pair of arc corners and a pneumatic push rod, the arc corner is a 90° arc corner, one end of the arc corner is hinged to the inner side of the limit plate, and the other end fixes the plug, a return spring is provided between the arc corner and the limit plate, the pneumatic push rod is placed on the side of the limit plate where the return spring is provided, the pneumatic push rod is connected to the pneumatic system, and the pneumatic system is controlled and operated by the intelligent control system.

[0021] Beneficial effects: (1) The present invention sets a loading limit device to limit the stacked plates during the loading process. After the suction cup on the loading arm absorbs the top plate, the limit device is started. If the plates are stuck at this time, the limit plate will resist the movement of the excess grabbed plates and make the plates stay in the original position, so as to achieve precise loading and prevent the problem of vacuum adsorption loading and adhesion; (2) The automation control signal of the whole device is simple and has strong compatibility; (3) By setting an automatic telescopic insert assembly to further limit the position of the plates, feeding failures caused by adhesion problems can be prevented, ensuring the smooth progress of the whole plate punching operation line and greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the feeding system of the present invention;

[0023] Figure 2 It is a schematic diagram of the operation effect of the feeding system of the present invention;

[0024] Figure 3 It is a schematic diagram of the overall structure of the feeding limit device of the present invention;

[0025] Figure 4 It is an exploded schematic diagram of the overall structure of the feeding limit device of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the telescopic insert assembly of the present invention;

[0027] Wherein: 1. feeding device, 11. electric lifting platform, 12. material support, 13. loading arm, 2. conveying device, 21. conveying frame, 22. conveying roller, 3. loading limit device, 31. limit drive system, 311. limit drive motor, 312. motor mounting bracket, 313. coupling, 32. limit support plate, 33. telescopic linkage assembly, 331. transmission screw, 332. first screw mounting bracket, 333. movable push plate, 334. guide shaft, 335. second screw mounting bracket, 336. guide slider, 34. guide structure, 35. automatic telescopic insert assembly, 351. insert, 352. arc corner, 353. pneumatic push rod, 354. notch, 355. reset spring, 4. plate. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0029] Embodiment 1: An anti-adhesion linkage feeding and conveying system for a plate punching operation line, comprising a feeding device 1, a conveying device 2, a feeding limit device 3 and an intelligent control system;

[0030] The feeding device 1 includes an electric lifting platform 11, a material support 12 and a loading arm 13. The electric lifting platform 11 is located upstream of the conveying device 2. The material support 12 is fixed on the electric lifting platform 11. The loading arm 12 is located above the material support 12, and a loading suction cup is provided below the loading arm 12. The loading suction cup is connected to a negative pressure system, and the loading arm is driven to operate by a loading arm power system.

[0031] The conveying device 2 includes a conveying frame 21, a conveying roller 22 and a conveying power system. The conveying roller 22 is fixed on the conveying frame 21, and the conveying power system is fixed to the bottom of the conveying frame 21;

[0032] The feeding limit device 3 is arranged on the conveying frame 21 and is located below the conveying roller 22. It includes a limit drive system 31, a limit support plate 32 and a telescopic linkage component 33. The limit drive system is fixed on the conveying frame 21. One end of the telescopic linkage component 33 is connected to the limit drive system 31, and the other end is connected to the limit support plate 32. The limit drive system 31 drives the telescopic linkage component 33 to move. The conveying frame 21 is provided with a guide structure 34 that cooperates with the telescopic linkage component to guide the telescopic linkage component 33 to telescope along the direction of the conveying frame 21. The telescopic linkage component 33 drives the limit support plate 32 to telescope along the direction of the conveying frame 21. A photoelectric sensor is provided on the limit support plate 32 to sense the position of the plate 4 on the feeding device 1 and transmit the sensing signal to the intelligent control system. The intelligent control system controls the lifting amplitude of the electric lifting platform 11, the telescopic range of the feeding limit device 3 and the operation of the feeding arm 13 according to the received photoelectric sensor signal.

[0033] The limit drive system 31 includes a limit drive motor 311, a motor mounting bracket 312 and a coupling 313. The motor mounting bracket 312 is fixed to the conveyor frame 21. The rotating shaft of the limit drive motor 311 passes through the motor mounting bracket 312 and is fixed to the conveyor frame 21 through the motor mounting bracket 312. The coupling 313 is connected to the rotating shaft of the limit drive motor 311.

[0034] The telescopic linkage assembly 33 includes a transmission screw 331, a first screw mounting bracket 332, a movable push plate 333 and a pair of guide shafts 334. The first screw mounting bracket 332 is fixed on the motor mounting bracket 312. The transmission screw 331 passes through the first screw mounting bracket 332 and is connected to the rotating shaft of the limit drive motor 311 through the coupling 313. A second screw mounting bracket 335 is installed in the middle of the movable push plate 333, and a screw penetration hole is provided at the corresponding position of the middle of the movable push plate and the second screw mounting bracket 335; guide shaft mounting holes are provided on both sides of the movable push plate, one end of the guide shaft 334 is installed on the movable push plate 333 through the mounting hole, each of the guide shafts 334 is provided with a guide slide block 336, and a guide slide groove matching the guide slide block 336 is provided at the corresponding position on the conveying frame, and the limit support plate 32 is fixed to the other end of the guide shaft 334.

[0035] The electric lifting platform is a scissor-type lifting platform.

[0036] An automatic telescopic plug assembly 35 is provided at the front end of the limit support plate 32; the automatic telescopic plug assembly 35 includes a pair of plugs 351, a pair of arc corners 352 and a pneumatic push rod 353, the arc corner 352 is a 90° arc corner, one end of the arc corner 352 is hinged to the inner side of the limit support plate 32, and the other end is fixed to the plug 351, and a corresponding position on the limit support plate 32 has a notch 354 for the plug to extend out, a return spring 355 is provided between the arc corner 352 and the limit support plate 32, and the pneumatic push rod 353 is placed on the side of the limit support plate 32 where the return spring 355 is provided, and the pneumatic push rod 353 is connected to the pneumatic system, and the pneumatic system is controlled and operated by the intelligent control system.

[0037] The working process of the feeding system is as follows: start the power system and the intelligent control system, and through the photoelectric sensor, the limit plate is attached to the edge of the plate 4 on the material tray, and the extended length can be digitally controlled by the intelligent control system, and the signal is transmitted to the robot feeding arm 13 to help the robot feeding arm 13 determine the starting point of the grabbing, and the suction cup on the feeding arm 13 sucks and lifts the plate 4. At this time, the telescopic plug assembly 33 is driven by the pneumatic system, and the pneumatic push rod pushes the arc corner, and the arc corner drives the plug to rotate until the plug is fully extended and inserted between the topmost plate and the second topmost plate. The feeding arm continues to feed and transports the plate 4 to the conveying device. After the suction cup is released, the telescopic plug assembly 33 and the mechanical feeding arm move back to the original position. At the same time, the electric lifting platform of the feeding device is lifted, so that the relative height between the topmost plate of the material tray and the upper edge of the limit plate returns to the height before grabbing, and the next cycle of feeding operation is continued.

[0038] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and details may be made without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. An anti-adhesion linkage feeding and conveying system for a plate punching line, characterized in that: It includes a feeding device, a conveying device, a loading limit device and an intelligent control system; The feeding device includes an electric lifting platform, a material support and a loading arm. The electric lifting platform is located upstream of the conveying device, the material support is fixed on the electric lifting platform, the loading arm is located above the material support, and a loading suction cup is provided below the loading arm. The loading suction cup is connected to a negative pressure system, and the loading arm is driven to operate by a loading arm power system; The conveying device comprises a conveying frame, a conveying roller and a conveying power system, wherein the conveying roller is fixed on the conveying frame, and the conveying power system is fixed on the bottom of the conveying frame; The feeding limit device is arranged on the conveying frame and is located below the conveying roller, and includes a limit driving system, a limit backing plate and a telescopic linkage component. The limit driving system is fixed on the conveying frame, one end of the telescopic linkage component is connected to the limit driving system, and the other end is connected to the limit backing plate. The telescopic linkage component is driven to move by the limit driving system. The conveying frame is provided with a guide structure cooperating with the telescopic linkage component to guide the telescopic linkage component to telescope along the direction of the conveying frame, and the telescopic linkage component drives the limit backing plate to telescope along the direction of the conveying frame; a photoelectric sensor is provided on the limit backing plate to sense the position of the plate on the feeding device and transmit the sensing signal to the intelligent control system, and the intelligent control system controls the lifting amplitude of the electric lifting platform, the telescopic range of the feeding limit device and the operation of the feeding arm according to the received photoelectric sensor signal; The limit drive system comprises a limit drive motor, a motor mounting bracket and a coupling, wherein the motor mounting bracket is fixed to the conveyor frame, the rotating shaft of the limit drive motor passes through the motor mounting bracket and is fixed to the conveyor frame through the motor mounting bracket, and the coupling is connected to the rotating shaft of the limit drive motor; The telescopic linkage assembly includes a transmission screw, a first screw mounting bracket, a movable push plate and a pair of guide shafts, the first screw mounting bracket is fixed to the motor mounting bracket, the transmission screw passes through the first screw mounting bracket and is connected to the rotating shaft of the limit drive motor through the coupling, a second screw mounting bracket is installed in the middle of the movable push plate, and the corresponding positions of the middle of the movable push plate and the second screw mounting bracket are provided with screw rod penetration holes; both sides of the movable push plate are provided with guide shaft mounting holes, one end of the guide shaft is installed on the movable push plate through the mounting holes, each of the guide shafts is provided with a guide slide block, and the corresponding position on the conveyor frame is provided with a guide slide groove matching the guide slide block, and the limit support plate is fixed to the other end of the guide shaft; The electric lift is a scissor lift; The front end of the limit support plate is provided with an automatically retractable insert assembly; The automatic telescopic plug assembly includes a pair of plugs, a pair of arc corners and a pneumatic push rod, the arc corner is a 90° arc corner, one end of the arc corner is hinged to the inner side of the limit support plate, and the other end fixes the plug, and the corresponding position on the limit support plate has a notch for the plug to extend out, a return spring is provided between the arc corner and the limit support plate, and the pneumatic push rod is placed on the side of the limit support plate where the return spring is provided, and the pneumatic push rod is connected to the pneumatic system, and the pneumatic system is controlled and operated by the intelligent control system.

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