Mechanism for achieving symmetrical stacking of special-shaped stamping parts

Abstract

The invention discloses a mechanism for achieving symmetrical stacking of special-shaped stamping parts in the technical field of plate machining equipment, and the mechanism comprises a telescopic belt conveyor, an automatic upender, a double-layer belt conveyor, a stacking machine and a stacking platform which are sequentially arranged from front to back, and the stacking machine comprises a front stacking device and a rear stacking device; the stacking platform comprises a front lifting platform arranged on the front moving vehicle and a rear lifting platform arranged on the rear moving vehicle, the front lifting platform corresponds to the front stacking device, and the rear lifting platform corresponds to the rear stacking device. Compared with the prior art, the finished plate can be turned over by 180 degrees in the feeding direction in the feeding process or is not turned over to be switched for production, finally stacking is conducted, conveying, turning over and stacking are integrated, the machine cost and the labor cost are saved, and meanwhile the production efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of sheet processing equipment, and particularly relates to a mechanism for realizing symmetric palletizing of shaped stamping parts. Background Art

[0002] In the prior art, in the processing of metal sheets, the palletizing mechanism of the traditional blanking line can only stack the sheets conveyed by the conveyor belt one by one in the same direction. If it is necessary to turn the finished material by 180°, it can be turned manually and then stacked together, or a separate turning machine can be configured outside the production line to transfer the finished sheet material to the turning machine for turning after palletizing and packing. For a production line using manual turning, the production speed of the whole line does not exceed 25 sheets per minute, resulting in low production efficiency and increased labor costs. For the production method using a turning machine for turning, only a single group of pallet stacks can be turned at a time, and manual transfer is required during the production process, with the same low efficiency and increased equipment investment and maintenance costs.

[0003] Therefore, there is an urgent need for a mechanism for realizing symmetric palletizing of shaped stamping parts to improve production efficiency and reduce labor, equipment investment and maintenance costs. Summary of the Invention

[0004] The object of the present invention is to provide a mechanism for realizing symmetric palletizing of shaped stamping parts, which can realize turning the finished sheet material by 180° along the feeding direction or not turning and switching production during the feeding process, and finally palletizing, realizing the integration of conveying, turning and palletizing, not only saving machine and labor costs, but also improving production efficiency.

[0005] The object of the present invention is achieved as follows: A mechanism for realizing symmetric palletizing of shaped stamping parts includes a telescopic belt conveyor, an automatic turning machine, a double-layer belt conveyor, a palletizing machine and a palletizing platform arranged in sequence from front to back. The palletizing machine includes a front palletizing device and a rear palletizing device. The palletizing platform includes a front lifting platform arranged on a front moving vehicle and a rear lifting platform arranged on a rear moving vehicle. The front lifting platform corresponds to the front palletizing device, and the rear lifting platform corresponds to the rear palletizing device.

[0006] In the present invention, a set of automatic turning belt conveyor is added in front of the traditional automatic blanking and palletizing mechanism. When a single finished sheet is conveyed to the automatic turning belt conveyor by the belt conveyor, the sheet is turned, and then is conveyed through the double-layer belt conveyor by switching up and down to the subsequent palletizing and patting equipment, and finally the neatly patted whole stack of products is conveyed out of the production line by a conveying trolley. The turning belt conveyor has two functions of conveying and turning, and the turning function can be freely turned on or off. When the turning function is turned off, the normal belt conveying function can be realized, and when the turning function is turned on, the conveying and sheet turning functions are realized simultaneously.

[0007] The present invention provides a mechanism for realizing symmetrical stacking of special-shaped stamping parts, and the whole line is composed of a telescopic belt conveyor, an automatic turning machine, a double-layer belt conveyor, a stacking machine and a stacking platform; wherein the automatic turning machine is composed of two upper and lower conveying belts, and the upper and lower conveying belts are driven by corresponding motors respectively; the upper and lower conveying belts are installed on the middle turning bracket, and the turning bracket is driven by a rotating motor to turn over according to the required beat, and the upper and lower belts rotate forward and reversely at the same time, so as to achieve the purpose of turning over the product and then conveying it to the next double-layer belt conveyor. The present invention adds a group of automatic turning machines before the traditional automatic blanking stacking mechanism, and turns the AB materials when the product is transmitted to the automatic turning machine through the belt conveyor, so that the AB materials are turned over after the stamping is completed, so that the AB materials are stacked in the same direction on the two stacking platforms. The cost of purchasing a turning machine separately is saved, and the turning efficiency is improved, the stacking process is reduced, and the manual participation is reduced, thereby improving the safety of the production line. The mechanism can set the flipping rhythm according to the punching rhythm of the punching machine. The flipping rhythm is always consistent with the punching rhythm of the punching machine. It is suitable for mobile blanking production lines for producing various special-shaped plates.

[0008] Compared with the prior art, the beneficial effect of the present invention is that by adding a set of automatic turning machines to the conventional palletizing and blanking line, the AB materials can be turned over and palletized during the production process. The cost of purchasing a turning machine separately is saved, the turning efficiency is improved, the palletizing process is shortened, and the manual participation is reduced, thereby reducing the labor cost and improving the safety of the production line. The invention can be applied to the palletizing and blanking lines for producing various products, and is not restricted by the product size. The production rhythm can be freely matched, and it can be widely used in various production blanking lines.

[0009] As a further improvement of the present invention, the telescopic belt conveyor includes a fixed bracket, the fixed bracket includes a horizontal support seat and a vertical support frame, the support seat is provided with a plurality of groups of mounting components arranged at equal intervals in the longitudinal direction, the mounting components include two vertical upright plates that are symmetrical on the left and right, a horizontal fixed side plate is fixed on the inner side of each upright plate, the two fixed side plates are arranged oppositely, a transmission wheel is rotatably arranged between the front ends of the two fixed side plates, the longitudinal rotating shaft passes through the rear ends of each fixed side plate in sequence, two left and right opposite supports are arranged on the support frame, the left and right ends of the rotating shaft connected to the motor transmission are rotatably supported on the two supports, a driving wheel is sleeved between the corresponding two fixed side plates on the rotating shaft, and a fixed transmission belt is arranged between the corresponding driving wheel and the transmission wheel. The motor of the fixed transmission belt drives the fixed transmission belt to rotate for conveying.

[0010] As a further improvement of the present invention, at least two elevators are provided on the lower side of the support base. Two horizontally symmetrical first transverse guide rails are provided on the support base. A telescopic bracket is movably connected to the two guide rails through sliders. Two second supports corresponding to each other in the front and rear directions are provided on the support base. A longitudinal lead screw drivingly connected to a motor is rotatably provided between the two second supports. The lead screw is located below the telescopic bracket. A lead screw nut is sleeved on the lead screw. The lead screw nut is drivingly connected to the telescopic bracket. A transmission assembly is inserted between any two adjacent groups of mounting assemblies corresponding to each other on the telescopic bracket. The transmission assembly includes two parallel horizontally telescopic side plates. The telescopic side plates are fixedly mounted on the telescopic bracket through a plurality of mounting brackets. Two upper transmission wheels corresponding to each other in the front and rear directions are rotatably provided between the corresponding two telescopic side plates. Two guide plates are provided on the lower side of the telescopic side plates. A guide wheel is rotatably provided between the two guide plates corresponding to each other on the left and right. The telescopic bracket is rotatably provided with a longitudinal drive shaft drivingly connected to a motor through at least two third supports. A driving wheel is sleeved on the drive shaft corresponding to each group of transmission assemblies. The corresponding driving wheel and the two upper transmission wheels are connected by a telescopic transmission belt. The telescopic transmission belt between the driving wheel and the upper transmission wheel is arranged to bypass the inner side of the corresponding guide wheel. The telescopic transmission belt motor drives the telescopic transmission belt group to rotate, and the elevator moves up and down to adjust the height of the entire belt platform to be consistent with the height of the mold in the press, facilitating material receiving. The telescopic motor drives the lead screw nut, so that the telescopic transmission belt group moves back and forth along with the platform of the entire telescopic bracket, and the front end of the telescopic transmission belt group is connected to the mold discharge port. The product is received by the telescopic belt conveyor and then transmitted to the next working station.

[0011] As a further improvement of the present invention, the automatic turning machine includes a base, on which two left and right corresponding supports four are arranged, a rectangular rotating frame is arranged between the two supports four, and turning shafts are arranged on the left and right sides of the rotating frame, and the two turning shafts are respectively connected to the two supports four for rotation, and any turning shaft passes through the support four and is connected to the motor for transmission, and an upper belt conveyor assembly and a lower belt conveyor assembly are respectively arranged inside the rotating frame, and the lower belt conveyor assembly includes two left-right symmetrical lower side fixing plates, and the two lower side fixing plates are respectively arranged on the left and right inner walls of the rotating frame, and a lower conveyor belt is arranged between the two lower side fixing plates, and a connecting frame is horizontally arranged above the lower conveyor belt inside the rotating frame, and vertical connecting plates extending downward are arranged on the left and right sides of the connecting frame, and an upper conveyor belt is arranged between the two connecting plates, and a cylinder one is arranged on the top of the rotating frame, and the piston rod of the cylinder one is downward and connected to a pressure plate, and the pressure plate is connected to the connecting frame, and a slider bar is vertically arranged on the outer side of the connecting plate, and guide blocks are arranged on the left and right inner walls of the rotating frame, and the two slider bars are respectively movably connected to the two guide blocks. When material A is transmitted into the automatic turning machine via the telescopic belt conveyor, the lower conveying group rotates clockwise driven by the corresponding belt motor to transmit material A to the double-layer belt conveyor; when material B is transmitted into the automatic turning machine via the telescopic belt conveyor, the rotary reduction motor and the turning shaft rotate, driving the rotating frame to rotate 180°, causing the upper conveyor belt to turn downward, and then the cylinder pushes the pressing plate and the connecting frame to make the upper conveyor belt flush with the working surface of the telescopic belt conveyor in front. At this time, the upper conveyor belt transmits material B to the double-layer belt conveyor.

[0012] As a further improvement of the present invention, the double-layer belt conveyor comprises a front support frame and a rear support frame corresponding to each other at the front and rear, the front support frame is provided with two left-right symmetrical supports five, a rotating support is provided above the front support frame, the rotating support is rotatably connected to the two supports five, the front support frame is hinged with two left-right corresponding cylinders two, the extended end of the piston rod of the cylinder two is hinged to the rotating support, and a rotating transmission belt is provided on the rotating support, the rear part of the front support frame is provided with at least two left-right corresponding supports six, the rear part of the rear support frame is provided with at least two left-right corresponding supports six, each of the supports six is ​​provided with a lower conveying support, the lower conveying support is provided with a lower conveying belt, at least two upper supports are installed on the left and right sides of the lower conveying support, an inclined connecting support is fixed on the top of each upper support, a connecting transmission belt is provided on the connecting support, a horizontal upper conveying support is correspondingly provided behind the connecting transmission belt, and the upper conveying support is provided with an upper conveying belt. The cylinder extends and retracts up and down, causing the rotating transmission belt to swing around the front roller shaft, so that it connects with the upper conveyor belt and the lower conveyor belt respectively. According to actual usage requirements, the extension and retraction rhythm of the cylinder is set to allow the products to be delivered to the rear palletizing device and the front palletizing device through the upper conveyor belt and the lower conveyor belt respectively.

[0013] As a further improvement of the present invention, the rotating bracket includes two parallel rotating side plates. A U-shaped transmission bracket is provided below the two rotating side plates. The left and right sides of the transmission bracket are respectively fixedly connected to the two rotating side plates. Each second cylinder is hinged to the transmission bracket. Two front and rear corresponding first transmission rollers are arranged between the two rotating side plates. A rotating transmission belt is arranged between the two first transmission rollers. The two ends of the roller shaft of the front first transmission roller are respectively rotatably connected to two fifth supports. One end of the roller shaft of the front first transmission roller passes through the corresponding fifth support and is provided with a first sprocket; the lower conveying bracket includes two parallel lower side plates. Two front and rear corresponding second transmission rollers are arranged between the two lower side plates. A lower conveying belt is arranged between the two second transmission rollers. The end of the second transmission roller close to the rotating bracket passes through the corresponding lower side plate and is provided with two juxtaposed second sprockets. The first sprocket and the second sprockets are driven to be connected by a chain. The other second sprocket is driven to be connected to the driving sprocket of the motor on the front support frame by a chain. The lower conveying belt motor directly drives the lower conveying belt to rotate, and at the same time drives the rotating bracket to rotate through another set of sprockets. The upper conveying belt motor directly drives the upper conveying belt to rotate, and at the same time drives the connecting transmission belt to rotate through another set of sprockets. A set of tensioning mechanisms are respectively installed on the lower conveying belt, the connecting transmission belt and the upper conveying belt. When installing, adjust the tensioning mechanisms to make the three groups of belts tensioned.

[0014] As a further improvement of the present invention, the front palletizing device includes two inverted U-shaped side brackets that are symmetric left and right. Between the tops of the two side brackets, a number of first longitudinal beams are provided. The middle of each first longitudinal beam is fixed to a cross beam. The left and right sides of the upper side conveying bracket are respectively fixed to the corresponding first longitudinal beam through at least one support. Between each side bracket and the corresponding cross beam, at least two sets of longitudinal driving mechanisms are provided at intervals front and back. The longitudinal driving mechanism includes two supports seven respectively arranged on the cross beam and the upper part of the corresponding side bracket. Between the two supports seven corresponding left and right, a lead screw one that is in transmission connection with a motor is rotatably arranged. A lead screw nut is sleeved on the lead screw one. The lead screw nuts on the lead screws one of each side bracket are all in transmission connection with a rectangular mounting frame. Longitudinal guide rods are longitudinally arranged on both the left and right sides of the lead screw one between the two supports seven corresponding left and right. A guide seat is provided on the upper side of the mounting frame corresponding to each guide rod. The guide rod is arranged in cooperation with the guide hole of the corresponding guide seat. Two symmetric left and right extending beams are longitudinally arranged on the mounting frame. A transverse mounting rod is arranged between the two extending beams. Two symmetric left and right supporting arms are connected to the mounting rod. The ends of the two supporting arms are both fixed to a transverse material supporting frame. Two rows of supporting wheels are arranged on the transverse material supporting frame at equal intervals along the transverse direction. Two longitudinal guide rods are movably connected to the mounting frame. The front ends of the two guide rods are fixed to a transverse side flapping arm. The side flapping arm is located below the corresponding transverse material supporting frame. Two worm gear and worm elevators are longitudinally arranged on the mounting frame. The working ends of the worm gear and worm elevators are connected to the corresponding side flapping arms. Between the two side brackets, two symmetric front and back second longitudinal beams are provided. The height of the second longitudinal beam is less than the height of the first longitudinal beam. An air duct is provided in the middle of the front second longitudinal beam. The upper part of the air duct is connected to a longitudinal material supporting frame. The longitudinal material supporting frame is located above the air outlet of the air duct. Two rows of supporting wheels are arranged on the longitudinal material supporting frame at equal intervals along the longitudinal direction. After the product enters the palletizing machine, it is jointly supported by the transverse material supporting frames on both sides. There is a set of lead screw one on the left and right sides of each material supporting frame. After the product completely enters the material supporting frame, the lead screw one rotates to drive the transverse material supporting frame to open, so that the product falls onto the lifting platform. The side flapping arms on both sides are connected to the worm gear and worm elevators. After the product falls onto the lifting trolley, the worm gear and worm elevators or cylinders on both sides drive the side flapping arms to respectively flap the pallet stack, so that the falling product is flush with the pallet stack. There are two sets of material supporting frame lead screws above the palletizing machine, which connect the material supporting frames on both sides. The worm gear and worm elevators drive the side flapping arms on both sides to simultaneously contract inwards or expand outwards for adjustment according to the width of the product.

[0015] As a further improvement of the present invention, an installation box is provided below the air duct on the second longitudinal beam. A movable box is movably connected to the upper side of the installation box. A front air cylinder is arranged inside the movable box. The piston rod of the front air cylinder is arranged horizontally and a telescopic stop block is provided at the end. A lead screw assembly is arranged horizontally inside the installation box. The lead screw nut of the lead screw assembly is in transmission connection with the movable box. The upper part of the installation box is provided with an opening corresponding to the movable box. A hand wheel is arranged on the front side of the installation box. The wheel shaft of the hand wheel is arranged longitudinally. The front end of the lead screw of the lead screw assembly is meshed and connected with the bevel gear at the end of the wheel shaft of the hand wheel through a bevel gear. Two corresponding supports VIII are provided on the lower side of the cross beam, one in front of the other. A lead screw II connected to a motor is rotatably arranged between the two supports VIII. The lead screw nut of the lead screw II is connected to a worm and worm gear box. A worm and worm gear assembly is arranged inside the worm and worm gear box. A rotating screw is fixedly installed on the worm of the worm and worm gear assembly through a keyway. The rotating screw extends downward out of the worm and worm gear box and is connected to a rear baffle. One end of the worm of the worm and worm gear assembly extends out of the worm and worm gear box and is connected to a hand wheel. The rear baffle is arranged corresponding to the telescopic stop block. The air duct is externally connected to a blower, which plays a certain role in supporting the material. The telescopic stop block adjusts its front and rear positions through the internal adjusting lead screw, providing positioning during palletizing and receiving materials. The rear baffle is installed on the lead screw II and is driven by a rear baffle motor to move back and forth, cooperating with the telescopic stop block to limit the front and rear palletizing positions of the product.

[0016] As a further improvement of the present invention, the front palletizing device is arranged corresponding to the lower conveying belt, and the rear palletizing device is arranged corresponding to the upper conveying belt. The rear palletizing device has the same structure as the front palletizing device and is arranged on a raised platform. Description of the Drawings

[0017] Figure 1 Is a three-dimensional structure diagram of the present invention.

[0018] Figure 2 Is the front view of the present invention.

[0019] Figure 3 Is the front view of the telescopic belt conveyor.

[0020] Figure 4 Is the top view of the telescopic belt conveyor.

[0021] Figure 5 Is the side view of the telescopic belt conveyor.

[0022] Figure 6 Is the front view of the automatic tilting machine.

[0023] Figure 7 Is the top view of the automatic tilting machine.

[0024] Figure 8 Is the side view of the automatic tilting machine.

[0025] Figure 9It is the front view of a double-layer belt conveyor.

[0026] Figure 10 It is the top view of a double-layer belt conveyor.

[0027] Figure 11 It is the side view of a double-layer belt conveyor.

[0028] Figure 12 It is the partial three-dimensional structure diagram of a double-layer belt conveyor.

[0029] Figure 13 It is the front view of a drive bracket.

[0030] Figure 14 It is the front view of a front palletizing device.

[0031] Figure 15 It is Figure 14 the partial enlarged view of.

[0032] Figure 16 It is Figure 14 the partial enlarged view of.

[0033] Figure 17 It is the top view of a front palletizing device.

[0034] Figure 18 It is the side view of a front palletizing device.

[0035] Figure 19 It is the three-dimensional structure diagram of a front palletizing device.

[0036] Figure 20 It is the three-dimensional structure diagram of a front palletizing device.

[0037] Figure 21 It is the three-dimensional structure diagram of an installation box and a moving box.

[0038] Figure 22 It is the schematic diagram of a front palletizing device and a rear palletizing device for palletizing AB materials.

[0039] Among them, 1 is a telescopic belt conveyor, 101 is a support base, 102 is a support frame, 103 is a vertical plate, 104 is a fixed side plate, 105 is a driving wheel, 106 is a rotating shaft, 107 is a support one, 108 is a driving wheel, 109 is a fixed transmission belt, 110 is a lift, 111 is a guide rail one, 112 is a telescopic support, 113 is a support two, 114 is a lead screw, 114a is a lead screw nut, 115 is a telescopic side plate, 116 is a mounting bracket, 117 is an upper transmission wheel, 118 is a guide plate, 119 is a guide wheel, 120 is a support three, 121 is a driving shaft, 121a is a driving wheel, 122 is a telescopic transmission belt; 2 is an automatic tilting machine, 201 is a base, 202 is a support four, 203 is a rotating frame, 204 is a tilting shaft, 205 is a lower side fixing plate, 206 is a lower layer conveyor belt, 207 is a connecting frame, 208 is a connecting plate, 209 is an upper layer conveyor belt, 210 is a cylinder one, 211 is a pressing plate, 212 is a slider bar, 213 is a guide block; 3 is a double-layer belt conveyor, 301 is a front support frame, 302 is a rear support frame, 303 is a support five, 304 is a rotating support, 304a is a rotating side plate, 305 is a cylinder two, 306 is a rotating transmission belt, 307 is a support six, 308 is a lower side conveying support, 308a is a lower side plate, 309 is a lower side conveying belt, 310 is an upper support, 311 is a connecting support, 312 is a connecting transmission belt, 313 is an upper side conveying support, 314 is an upper side conveying belt, 315 is a transmission support, 316 is a transmission roller one, 317 is a sprocket one, 318 is a sprocket two, 319 is a driving sprocket, 320 is a transmission roller two; 4 is a front palletizing device, 401 is a side support, 402 is a longitudinal beam one, 403 is a cross beam, 404 is a support seven, 405 is a lead screw one, 406 is a lead screw nut, 407 is a mounting frame, 408 is a guide rod, 409 is a guide seat, 410 is a protruding beam, 411 is a mounting rod, 412 is a support arm, 413 is a transverse material support, 414 is a support wheel, 415 is a guide rod, 416 is a side flapping arm, 417 is a worm gear and worm lift, 418 is a longitudinal beam two, 419 is an air duct, 420 is a longitudinal material support, 421 is a mounting box, 422 is a moving box, 423 is a front cylinder, 424 is a telescopic stop block, 425 is a lead screw assembly, 426 is a handwheel, 426a is a wheel shaft, 427 is a bevel gear, 428 is a support eight, 429 is a lead screw two, 430 is a worm gear and worm box, 431 is a worm gear and worm assembly, 432 is a rotating screw, 433 is a rear baffle, 434 is a handwheel; 5 is a front moving vehicle, 5a is a front lifting platform, 6 is a rear palletizing device, 7 is a rear moving vehicle, 7a is a rear lifting platform, 8 is a padding platform. Specific implementation mode

[0040] Such as Figures 1-22As shown in the figure, it is a mechanism for realizing the symmetrical palletizing of special-shaped stamped parts, including a telescopic belt conveyor 1, an automatic turnover machine 2, a double-layer belt conveyor 3, a palletizer and a palletizing platform arranged in sequence from front to back. The palletizer includes a front palletizing device 4 and a rear palletizing device 6. The palletizing platform includes a front lifting platform 5a arranged on a front moving vehicle 5 and a rear lifting platform 7a arranged on a rear moving vehicle 7. The front lifting platform 5a corresponds to the front palletizing device 4, and the rear lifting platform 7a corresponds to the rear palletizing device 6.

[0041] The retractable belt conveyor 1 includes a fixed support. The fixed support includes a horizontal support base 101 and a vertical support frame 102. A number of groups of mounting components are arranged at equal intervals longitudinally on the support base 101. The mounting components include two vertically arranged side plates 103 that are symmetric left and right. A horizontal fixed side plate 104 is fixed to the inner side of each side plate 103. The two fixed side plates 104 are arranged oppositely. A driving wheel 105 is rotatably arranged between the front ends of the two fixed side plates 104. A longitudinal rotating shaft 106 passes through the rear ends of the respective fixed side plates 104 in sequence. Two supports one 107 that are opposite left and right are arranged on the support frame 102. The left and right ends of the rotating shaft 106 that is in transmission connection with the motor are respectively rotatably supported on the two supports one 107. A driving wheel 108 is sleeved between the corresponding two fixed side plates 104 on the rotating shaft 106. A fixed transmission belt 109 is arranged between the corresponding driving wheel 108 and the driving wheel 105. The motor of the fixed transmission belt 109 drives the fixed transmission belt 109 to rotate for conveying. At least two elevators 110 are arranged on the lower side of the support base 101. Two horizontally arranged guide rails one 11 that are symmetric left and right are arranged on the support base 101. A retractable support 112 is movably connected to the two guide rails one 11 through sliders. Two supports two 113 that are corresponding front and rear are arranged on the support base 101. A longitudinal lead screw 114 that is in transmission connection with the motor is rotatably arranged between the two supports two 113. The lead screw 114 is located below the retractable support 112. A lead screw nut 114a is sleeved on the lead screw 114. The lead screw nut 114a is in transmission connection with the retractable support 112. A transmission component is inserted between any two adjacent groups of mounting components corresponding to the retractable support 112. The transmission component includes two parallel horizontally retractable side plates 115. The retractable side plates 115 are fixedly installed on the retractable support 112 through a number of mounting brackets 116. Two upper transmission wheels 117 that are corresponding front and rear are rotatably arranged between the corresponding two retractable side plates 115. Two guide plates 118 are arranged on the lower side of the retractable side plates 115. A guide wheel 119 is rotatably arranged between the two corresponding guide plates 118 that are left and right. A longitudinal driving shaft 121 that is in transmission connection with the motor is rotatably arranged on the retractable support 112 through at least two supports three 120. A driving wheel 121a is sleeved on the driving shaft 121 corresponding to each group of transmission components. The corresponding driving wheel 121a and the two upper transmission wheels 117 are connected by a retractable transmission belt 122. The retractable transmission belt 122 between the driving wheel 121a and the upper transmission wheels 117 is arranged around the inner side of the corresponding guide wheel 119.The telescopic transmission belt 122 motor drives the telescopic transmission belt 122 group to rotate, and the elevator 110 rises and falls to adjust the height of the entire belt platform to make it consistent with the height of the mold in the press, which is convenient for material connection; the telescopic motor drives the screw nut 114a, so that the telescopic transmission belt 122 group moves back and forth with the platform of the entire telescopic bracket 112, so that the front end of the telescopic transmission belt 122 group is connected to the mold discharge port, and the product is connected by the telescopic belt machine 1 and then transmitted to the next station.

[0042] The automatic turning machine 2 includes a base 201, on which two left and right corresponding supports 202 are arranged, a rectangular rotating frame 203 is arranged between the two supports 202, and turning shafts 204 are arranged on the left and right sides of the rotating frame 203, and the two turning shafts 204 are respectively rotatably connected with the two supports 202, and any turning shaft 204 passes through the supports 202 and is connected to the motor in a driving manner, and an upper belt conveyor assembly and a lower belt conveyor assembly are respectively arranged inside the rotating frame 203, and the lower belt conveyor assembly includes two left-right symmetrical lower side fixing plates 205, and the two lower side fixing plates 205 are respectively arranged on the inner walls of the left and right sides of the rotating frame 203, and the two lower side fixing plates A lower conveyor belt 206 is arranged between 205, and a connecting frame 207 is horizontally arranged above the lower conveyor belt 206 inside the rotating frame 203. Vertical connecting plates 208 extending downward are arranged on the left and right sides of the connecting frame 207, and an upper conveyor belt 209 is arranged between the two connecting plates 208. A cylinder 210 is arranged on the top of the rotating frame 203, and the piston rod of the cylinder 210 is downward and connected to a pressure plate 211, which is connected to the connecting frame 207. A sliding bar 212 is vertically arranged on the outer side of the connecting plate 208, and guide blocks 213 are arranged on the inner walls on the left and right sides of the rotating frame 203. The two sliding bars 212 are movably connected to the two guide blocks 213 respectively. When material A is transmitted into the automatic turning machine 2 via the telescopic belt conveyor 1, the lower conveying group rotates clockwise under the drive of the corresponding belt motor to transmit material A to the double-layer belt conveyor 3; when material B is transmitted into the automatic turning machine 2 via the telescopic belt conveyor 1, the rotary reduction motor and the turning shaft 204 rotate, driving the rotating frame 203 to rotate 180°, so that the upper conveyor belt 209 is turned to the bottom, and then the cylinder pushes the pressing plate 211 and the connecting frame 207, so that the upper conveyor belt 209 is flush with the working surface of the telescopic belt conveyor 1 in front, and the upper conveyor belt 209 transmits material B to the double-layer belt conveyor 3.

[0043] The double-layer belt conveyor 3 includes a front support frame 301 and a rear support frame 302 that correspond to each other front and back. Two symmetrically arranged supports five 303 are provided on the front support frame 301. Above the front support frame 301, there is a rotating support frame 304, and the rotating support frame 304 is rotatably connected to the two supports five 303. Two symmetrically arranged cylinders two 305 are hinged on the front support frame 301, and the piston rod extending ends of the cylinders two 305 are hinged to the rotating support frame 304. A rotating conveyor belt 306 is provided on the rotating support frame 304. At least two symmetrically arranged supports six 307 are provided at the rear of the front support frame 301, and at least two symmetrically arranged supports six 307 are provided on the rear support frame 302. A lower-side conveyor support 308 is provided on each support six 307, and a lower-side conveyor belt 309 is provided on the lower-side conveyor support 308. At least two upper supports 310 are installed on both the left and right sides of the lower-side conveyor support 308. An inclined connection support 311 is fixed to the top of each upper support 310, and a connection conveyor belt 312 is provided on the connection support 311. A horizontal upper-side conveyor support 313 is correspondingly provided behind the connection conveyor belt 312, and an upper-side conveyor belt 314 is provided on the upper-side conveyor support 313. The cylinder expands and contracts up and down, causing the rotating conveyor belt 306 to swing with the front-end roller shaft as the axis, so that it is respectively butted against the upper-side conveyor belt 314 and the lower-side conveyor belt 309. According to the actual use requirements, the expansion and contraction rhythm of the cylinder is set, so that the products are respectively sent to the rear palletizing device 6 and the front palletizing device 4 through the upper-side conveyor belt 314 and the lower-side conveyor belt 309. The rotating support frame 304 includes two parallel rotating side plates 304a. A U-shaped transmission support 315 is provided below the two rotating side plates 304a. The left and right sides of the transmission support 315 are respectively fixedly connected to the two rotating side plates 304a. Each cylinder two 305 is hinged to the transmission support 315. Two front and back corresponding transmission rollers one 316 are provided between the two rotating side plates 304a, and the rotating conveyor belt 306 is arranged between the two transmission rollers one 316. The roller shafts at both ends of the front-side transmission roller one 316 are respectively rotatably connected to the two supports five 303, and one end of the roller shaft of the front-side transmission roller one 316 passes through the corresponding support five 303 and is provided with a sprocket one 317; the lower-side conveyor support 308 includes two parallel lower side plates 308a. Two front and back corresponding transmission rollers two 320 are provided between the two lower side plates 308a, and the lower-side conveyor belt 309 is arranged between the two transmission rollers two 320. The end of the transmission roller two 320 close to the rotating support frame 304 passes through the corresponding lower side plate 308a and is provided with two juxtaposed sprockets two 318. The sprocket one 317 and the sprockets two 318 are driven by a chain, and the other sprocket two 318 is driven by a chain to the drive sprocket 319 of the motor on the front support frame 301.The motor of the lower conveyor belt 309 directly drives the lower conveyor belt 309 to rotate, and at the same time drives the rotating bracket 304 to rotate through another set of sprockets. The motor of the upper conveyor belt 314 directly drives the upper conveyor belt 314 to rotate, and at the same time drives the connecting transmission belt 312 to rotate through another set of sprockets. A set of tensioning mechanisms are respectively installed on the lower conveyor belt 309, the connecting transmission belt 312 and the upper conveyor belt 314. When installing, adjust the tensioning mechanisms to make the three groups of belts taut.

[0044] The front palletizing device 4 includes two left-right symmetric inverted U-shaped side brackets 401. Between the tops of the two side brackets 401, a number of first longitudinal beams 402 are provided. The middle of each first longitudinal beam 402 is fixed to a cross beam 403. The left and right sides of the upper side conveying bracket 313 are respectively fixed to the corresponding first longitudinal beam 402 through at least one support. Between each side bracket 401 and the corresponding cross beam 403, at least two sets of longitudinally driving mechanisms spaced front and back are provided. The longitudinally driving mechanism includes two seventh supports 404 respectively arranged on the cross beam 403 and the upper part of the corresponding side bracket 401. A first lead screw 405 in transmission connection with a motor is rotatably arranged between the two left-right corresponding seventh supports 404. A lead screw nut 406 is sleeved on the first lead screw 405. The lead screw nuts 406 on the first lead screws 405 of each side bracket 401 are all in transmission connection with a rectangular mounting frame 407. On the left and right sides of the first lead screw 405 between the two left-right corresponding seventh supports 404, a guide rod 408 is longitudinally arranged. On the upper side of the mounting frame 407, a guide seat 409 is provided corresponding to each guide rod 408. The guide rod 408 is arranged in cooperation with the guide hole of the corresponding guide seat 409. On the mounting frame 407, two left-right symmetric extending beams 410 are longitudinally arranged. Between the two extending beams 410, a transverse mounting rod 411 is provided. Two left-right symmetric support arms 412 are connected to the mounting rod 411. The ends of the two support arms 412 are both fixed to a transverse material supporting frame 413. On the transverse material supporting frame 413, two rows of supporting wheels 414 are provided and distributed at equal intervals along the transverse direction. Two longitudinal guide rods 415 are movably connected to the mounting frame 407. The front ends of the two guide rods 415 are fixed to a transverse side flapping arm 416. The side flapping arm 416 is located below the corresponding transverse material supporting frame 413. Two worm gear and worm elevators 417 are longitudinally arranged on the mounting frame 407. The working ends of the worm gear and worm elevators 417 are connected to the corresponding side flapping arms 416. Between the two side brackets 401, two second longitudinal beams 418 symmetrically arranged front and back are provided. The height of the second longitudinal beam 418 is less than that of the first longitudinal beam 402. In the middle of the front second longitudinal beam 418, an air duct 419 is provided. The upper part of the air duct 419 is connected to a longitudinal material supporting frame 420. The longitudinal material supporting frame 420 is located above the air outlet of the air duct 419. On the longitudinal material supporting frame 420, two rows of supporting wheels 414 are provided and distributed at equal intervals along the longitudinal direction.After the product enters the palletizer, it is jointly supported by the lateral material support frames 413 on both sides. There is a set of lead screws 405 on the left and right sides of each material support frame. After the product completely enters the material support frame, the lead screws 405 rotate to drive the lateral material support frames 413 to open, causing the product to fall onto the lifting platform. The side flapping arms 416 on both sides are connected to the worm gear and worm elevator 417. After the product falls onto the lifting trolley, the worm gear and worm elevators 417 or cylinders on both sides drive the side flapping arms 416 to respectively flap the pallet stack, making the falling product flush with the pallet stack. There are two sets of material support frame lead screws above the palletizer to connect the material support frames on both sides. The worm gear and worm elevator 417 drives the side flapping arms 416 on both sides to contract inward or expand outward simultaneously for adjustment according to the width of the product.

[0045] An installation box 421 is arranged below the air duct 419 on the longitudinal beam II 418. A movable box 422 is movably connected to the upper side of the installation box 421. A front cylinder 423 is arranged inside the movable box 422. The piston rod of the front cylinder 423 is arranged horizontally and a telescopic stop block 424 is provided at the end. A lead screw assembly 425 is arranged horizontally inside the installation box 421. The lead screw nut 406 of the lead screw assembly 425 is in transmission connection with the movable box 422. The upper part of the installation box 421 is provided corresponding to the opening of the movable box 422. A handwheel 426 is arranged on the front side of the installation box 421. The wheel shaft 426a of the handwheel 426 is arranged longitudinally. The front end of the lead screw of the lead screw assembly 425 is meshed and connected with the bevel gear 427 at the end of the handwheel shaft 426a through a bevel gear 427. Two corresponding supports VIII 428 are arranged on the lower side of the cross beam 403 in the front and rear. A lead screw 429 connected to the motor is rotatably arranged between the two supports VIII 428. The lead screw nut 114a of the lead screw 429 is connected to the worm gear box 430. A worm gear and worm assembly 431 is arranged inside the worm gear box 430. A rotating screw 432 is fixedly installed on the worm of the worm gear and worm assembly 431 through a keyway. The rotating screw 432 extends downward out of the worm gear box 430 and is connected with a rear baffle 433. One end of the worm of the worm gear and worm assembly 431 extends out of the worm gear box 430 and is connected with a handwheel 434. The rear baffle 433 is arranged corresponding to the telescopic stop block 424. The air duct 419 is externally connected to a blower to play a certain role in supporting the material. The telescopic stop block 424 adjusts the front and rear positions through the internal adjustment lead screw to provide positioning during palletizing and receiving materials. The rear baffle 433 is installed on the lead screw 429 and is driven by the motor of the rear baffle 433 to move back and forth, cooperating with the telescopic stop block 424 to limit the front and rear palletizing positions of the product.

[0046] The front palletizing device 4 is arranged corresponding to the lower conveying belt 309, and the rear palletizing device 6 is arranged corresponding to the upper conveying belt 314. The structure of the rear palletizing device 6 is the same as that of the front palletizing device 4. The rear palletizing device 6 is arranged on the raised platform 8.

[0047] Before the traditional automatic blanking and palletizing mechanism of the present invention, a set of automatic turning belt conveyors is added. When a single finished product sheet is transported to the automatic turning belt conveyor through the belt conveyor, the turning of the sheet is carried out, and it is transported to the subsequent palletizing and patting equipment through the upper and lower switching of the double-layer belt conveyor. Finally, the conveying trolley is used to transport the neatly patted and stacked products outside the production line. The turning belt conveyor has two functions of conveying and turning. Among them, the turning function can be freely turned on or off. When the turning function is turned off, the normal belt conveying function can be realized, and when the turning function is turned on, the conveying and turning functions of the sheet are realized at the same time. An entire line of a mechanism for realizing the symmetrical palletizing of special-shaped stampings of the present invention is composed of a telescopic belt conveyor 1, an automatic turning machine 2, a double-layer belt conveyor 3, a palletizing machine and a palletizing platform; among them, the automatic turning machine 2 is composed of upper and lower conveying belts, and the upper and lower conveying belts are respectively driven by corresponding motors; the upper and lower conveying belts are installed on the middle turning bracket, and the turning bracket is driven by a rotating motor and turns according to the required rhythm. At the same time, the upper and lower belts rotate forward and backward to achieve the purpose of turning the product and transporting it to the next double-layer belt conveyor 3. Before the traditional automatic blanking and palletizing mechanism of the present invention, a set of automatic turning machines 2 is added. When the product is transported to the automatic turning machine 2 through the belt conveyor, the turning of the AB materials is carried out, realizing the turning of the AB materials after the stamping is completed, so that the AB materials are palletized in the same direction on the two palletizing platforms. The cost of purchasing a separate turning machine is saved, the turning efficiency is improved, the palletizing process is reduced, the manual participation is reduced, and the safety of the production line is improved. This mechanism can set the turning rhythm according to the stamping rhythm of the stamping machine, and the turning rhythm always keeps consistent with the stamping rhythm of the stamping machine, and is applicable to the mobile blanking production line for producing various special-shaped plates.

[0048] The advantages of the present invention are as follows: By adding a set of automatic turning machines 2 in the conventional palletizing and blanking line, the turning and palletizing of the AB materials are realized during the production process. The cost of purchasing a separate turning machine is saved, the turning efficiency is improved, the palletizing process is reduced, the manual participation is reduced, and the safety of the production line is improved while reducing the labor cost. The invention can be applicable to the palletizing and blanking lines for producing various products and is not restricted by the product size. The production rhythm can be freely matched and it can be widely applied to various production blanking lines.

[0049] The present invention is not limited to the above embodiments. Based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and deformations to some technical features without creative labor according to the disclosed technical content, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. A mechanism for realizing symmetric palletizing of special-shaped stamped parts, characterized in that, It includes a telescopic belt conveyor, an automatic tilter, a double-layer belt conveyor, a palletizer and a palletizing platform which are arranged in sequence from front to back. The palletizer includes a front palletizing device and a rear palletizing device. The palletizing platform includes a front lifting platform arranged on a front moving vehicle and a rear lifting platform arranged on a rear moving vehicle respectively. The front lifting platform corresponds to the front palletizing device, and the rear lifting platform corresponds to the rear palletizing device.

2. The mechanism for realizing the symmetric palletizing of special-shaped stamping parts according to claim 1, characterized in that, The telescopic belt conveyor includes a fixed bracket which includes a horizontal support seat and a vertical support frame. A number of groups of mounting components are arranged on the support seat at equal intervals longitudinally. The mounting component includes two vertically arranged side plates which are symmetric left and right. A horizontal fixed side plate is fixed on the inner side of each side plate. The two fixed side plates are arranged oppositely. A driving wheel is rotatably arranged between the front ends of the two fixed side plates. A longitudinal rotating shaft passes through the rear ends of the respective fixed side plates in sequence. Two supports I which are opposite left and right are arranged on the support frame. The left and right ends of a rotating shaft which is in transmission connection with a motor are respectively rotatably supported on the two supports I. A driving wheel is sleeved between the corresponding two fixed side plates on the rotating shaft. A fixed transmission belt is arranged between the corresponding driving wheel and the driving wheel.

3. The mechanism for realizing the symmetric palletizing of special-shaped stampings according to claim 2, characterized in that, At least two elevators are arranged on the lower side of the support seat. Two horizontally arranged guide rails I which are symmetric left and right are arranged on the support seat. A telescopic bracket is movably connected to the two guide rails I through sliders. Two supports II which are corresponding front and back are arranged on the support seat. A longitudinal lead screw which is in transmission connection with a motor is rotatably arranged between the two supports II. The lead screw is located below the telescopic bracket. A lead screw nut is sleeved on the lead screw. The lead screw nut is in transmission connection with the telescopic bracket. A transmission component is inserted between any two adjacent groups of mounting components on the telescopic bracket. The transmission component includes two parallel horizontally telescopic side plates. The telescopic side plates are fixedly installed on the telescopic bracket through a number of mounting brackets. Two upper transmission wheels which are corresponding front and back are rotatably arranged between the corresponding two telescopic side plates. Two guide plates are arranged on the lower side of the telescopic side plates. A guide wheel is rotatably arranged between the two corresponding left and right guide plates. A longitudinal driving shaft which is in transmission connection with a motor is rotatably arranged on the telescopic bracket through at least two supports III. A driving wheel is sleeved on the driving shaft corresponding to each group of transmission components. The corresponding driving wheel and the two upper transmission wheels are connected by a telescopic transmission belt. The telescopic transmission belt between the driving wheel and the upper transmission wheel is arranged around the inner side of the corresponding guide wheel.

4. A mechanism for realizing symmetric palletizing of special-shaped stamping parts according to any one of claims 1-3, characterized in that, The automatic turnover machine includes a base, on which there are two corresponding supports four on the left and right. Between the two supports four, there is a rectangular rotating frame. On both the left and right sides of the rotating frame, there are turnover shafts, and the two turnover shafts are respectively rotatably connected to the two supports four. Any one of the turnover shafts passes through the support four and is in transmission connection with the motor. Inside the rotating frame, there are respectively an upper belt conveying assembly and a lower belt conveying assembly. The lower belt conveying assembly includes two symmetrically arranged lower side fixing plates on the left and right. The two lower side fixing plates are respectively arranged on the inner walls of the left and right sides of the rotating frame. Between the two lower side fixing plates, there is a lower layer conveyor belt. Inside the rotating frame, a connecting frame is horizontally arranged above the lower layer conveyor belt. On both the left and right sides of the connecting frame, there are vertically extending vertical connecting plates. Between the two connecting plates, there is an upper layer conveyor belt. At the top of the rotating frame, there is a cylinder one. The piston rod of the cylinder one extends downward and is connected with a pressing plate, and the pressing plate is connected with the connecting frame. On the outer side of the connecting plate, there is a vertically arranged slider bar. On the inner walls of the left and right sides of the rotating frame, there are respectively guide blocks, and the two slider bars are respectively movably connected with the two guide blocks.

5. A mechanism for realizing the symmetrical stacking of special-shaped stamped parts according to any one of claims 1-3, characterized in that, The double-layer belt conveyor includes a front support frame and a rear support frame corresponding to each other in the front and rear. On the front support frame, there are two symmetrically arranged supports five on the left and right. Above the front support frame, there is a rotating support frame, and the rotating support frame is rotatably connected to the two supports five. On the front support frame, there are two corresponding cylinders two on the left and right hinged. The extending ends of the piston rods of the cylinders two are hinged to the rotating support frame. On the rotating support frame, there is a rotating transmission belt. At the rear of the front support frame, there are at least two corresponding supports six on the left and right. On the rear support frame, there are at least two corresponding supports six on the left and right. On each support six, there is a lower side conveying support frame, and on the lower side conveying support frame, there is a lower side conveying belt. On both the left and right sides of the lower side conveying support frame, there are at least two upper support frames installed. At the top of each upper support frame, there is an inclined connecting support frame fixed, and on the connecting support frame, there is a connecting transmission belt. Corresponding to the rear of the connecting transmission belt, there is a horizontal upper side conveying support frame, and on the upper side conveying support frame, there is an upper side conveying belt.

6. The mechanism for realizing the symmetrical palletizing of special-shaped stampings according to claim 5, characterized in that, The rotating support frame includes two parallel rotating side plates. Below the two rotating side plates, there is a U-shaped transmission support frame. The left and right sides of the transmission support frame are respectively fixedly connected to the two rotating side plates. Each cylinder two is hinged to the transmission support frame. Between the two rotating side plates, there are two corresponding transmission rollers one in the front and rear. The rotating transmission belt is arranged between the two transmission rollers one. The roller shafts at both ends of the front transmission roller one are respectively rotatably connected to the two supports five. One end of the roller shaft of the front transmission roller one passes through the corresponding support five and is provided with a sprocket one; The lower side conveying support frame includes two parallel lower side plates. Between the two lower side plates, there are two corresponding transmission rollers two in the front and rear. The lower side conveying belt is arranged between the two transmission rollers two. The end of the transmission roller two close to the rotating support frame passes through the corresponding lower side plate and is provided with two juxtaposed sprockets two. The sprocket one and the sprockets two are in transmission connection through a chain. The other sprocket two is in transmission connection with the driving sprocket of the motor on the front support frame through a chain.

7. The mechanism for realizing symmetric palletizing of special-shaped stamping parts according to claim 6, characterized in that, The front palletizing device includes two inverted U-shaped side brackets that are symmetric left and right. Between the tops of the two side brackets, a number of first longitudinal beams are provided. The middle of each first longitudinal beam is fixed to a cross beam. The left and right sides of the upper side conveying bracket are respectively fixed to the corresponding first longitudinal beam through at least one support. Between each side bracket and the corresponding cross beam, at least two sets of longitudinal driving mechanisms are provided at intervals front and back. The longitudinal driving mechanism includes two supports seven respectively arranged on the cross beam and the upper part of the corresponding side bracket. Between the two supports seven corresponding left and right, a lead screw one connected to a motor through transmission is rotatably arranged. A lead screw nut is sleeved on the lead screw one. The lead screw nuts on the lead screws one of each side bracket are all in transmission connection with a rectangular mounting frame. On both left and right sides of the lead screw one between the two supports seven corresponding left and right, a guide rod is longitudinally arranged. On the upper side of the mounting frame, a guide seat is provided corresponding to each guide rod. The guide rod is arranged in cooperation with the guide hole of the corresponding guide seat. On the mounting frame, two symmetric left and right extending beams are longitudinally arranged. Between the two extending beams, a transverse mounting rod is provided. Two symmetric left and right supporting arms are connected to the mounting rod. The ends of the two supporting arms are both fixed to a transverse material supporting frame. On the transverse material supporting frame, two rows of supporting wheels are provided at equal intervals in the transverse direction. On the mounting frame, two longitudinal guide rods are movably connected. The front ends of the two guide rods are fixed to a transverse side flapping arm. The side flapping arm is located below the corresponding transverse material supporting frame. On the mounting frame, two worm gear and worm elevators are longitudinally arranged. The working ends of the worm gear and worm elevators are connected to the corresponding side flapping arms. Between the two side brackets, two symmetric front and back second longitudinal beams are provided. The height of the second longitudinal beam is less than that of the first longitudinal beam. In the middle of the front second longitudinal beam, an air duct is provided. The upper part of the air duct is connected to a longitudinal material supporting frame. The longitudinal material supporting frame is located above the air outlet of the air duct. On the longitudinal material supporting frame, two rows of supporting wheels are provided at equal intervals in the longitudinal direction.

8. A mechanism for realizing symmetric palletizing of special-shaped stampings according to claim 7, characterized in that, On the second longitudinal beam and below the air duct, an installation box is provided. A movable box is movably connected to the upper side of the installation box. A front cylinder is arranged in the movable box. The piston rod of the front cylinder is arranged horizontally and a telescopic stop block is provided at the end. A lead screw assembly is arranged horizontally in the installation box. The lead screw nut of the lead screw assembly is in transmission connection with the movable box. The upper part of the installation box is provided corresponding to the opening of the movable box. A hand wheel is provided on the front side of the installation box. The wheel shaft of the hand wheel is arranged longitudinally. The front end of the lead screw of the lead screw assembly is meshed and connected to the gear of the end of the wheel shaft of the hand wheel through bevel gears. Below the cross beam, two corresponding supports eight are provided front and back. Between the two supports eight, a lead screw two connected to a motor is rotatably arranged. The lead screw nut of the lead screw two is connected to a worm gear box. A worm gear and worm assembly is arranged inside the worm gear box. A rotating screw is fixedly installed on the worm of the worm gear and worm assembly through a keyway. The rotating screw extends downward out of the worm gear box and is connected to a rear baffle. One end of the worm of the worm gear and worm assembly extends out of the worm gear box and is connected to a hand wheel. The rear baffle is arranged corresponding to the telescopic stop block.

9. The mechanism for realizing the symmetric palletizing of special-shaped stampings according to claim 8, characterized in that, The front palletizing device is arranged corresponding to the lower side conveying belt, and the rear palletizing device is arranged corresponding to the upper side conveying belt. The structure of the rear palletizing device is the same as that of the front palletizing device. The rear palletizing device is arranged on a raised platform.

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