A cantilever type automatic loading and unloading device for pressing heat exchange plates

Abstract

The present invention discloses a cantilever type automatic loading and unloading device for pressing heat exchange plates, which comprises two groups of gantry frames and a suction cup assembly. A longitudinal beam is arranged on the upper parts of the two groups of gantry frames; first sliding seats are arranged at both ends of the longitudinal beam, a first air cylinder is arranged below the second sliding seat, and the lower end of the piston rod of the first air cylinder is connected with a suspension rod; the suction cup assembly comprises a connecting rod, one end of the connecting rod is connected with the suspension rod, mounting frames are arranged on both sides of the other end of the connecting rod, the two mounting frames on both sides are connected through a connecting plate, and a plurality of suction cups are arranged on both sides of the mounting frames and the connecting rod; a loading rack is arranged below the gantry frame, and a unloading rack is arranged on one side of the loading rack. In the present invention, the suction cup assembly is used for loading and unloading the plates, reducing the labor intensity of workers, improving the efficiency of plate pressing, and avoiding the risk of work injuries.

Description

Technical Field

[0001] The present invention belongs to the field of pressing heat exchanger plates, and particularly relates to a cantilever type automatic loading and unloading device for pressing heat exchanger plates. Background Technique

[0002] A plate heat exchanger is a new type of high-efficiency heat exchanger composed of a series of metal plates with a certain corrugated shape stacked together. It has the characteristics of high heat transfer efficiency, small heat loss, compact and light structure, small floor area, convenient installation and cleaning, wide application, long service life, etc. Under the same pressure loss condition, its heat transfer coefficient is 3-5 times higher than that of a shell-and-tube heat exchanger, and the floor area is one-third of that of a tube heat exchanger. The main heat exchange element of a plate heat exchanger is a metal corrugated plate, which is formed by one-time pressing with a hydraulic press.

[0003] Currently, during the pressing of heat exchanger plates, multiple manual handling for loading and unloading is usually adopted, which is time-consuming and laborious, with low work efficiency. Moreover, when pressing large heat exchanger plates, due to the long length of the plates, manual handling is likely to cause the blank to bend and deform, thus affecting the forming accuracy of the plates; in addition, manual loading and unloading requires workers to work under the hydraulic press, posing a risk of work injury. With the development of automation technology, there is an urgent need for an automatic loading and unloading device that can replace manual loading and unloading. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a cantilever type automatic loading and unloading device for pressing heat exchanger plates, so as to solve the problems of high work intensity, low work efficiency, and work injury risk existing in manual loading and unloading during the current plate pressing.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0006] A cantilever type automatic loading and unloading device for pressing heat exchange plates, comprising two sets of gantry frames and a suction cup assembly. The gantry frame includes a cross beam and column legs arranged at both ends of the cross beam. A first guide rail is provided on the upper part of the cross beam, and a first rack is provided on one side of the first guide rail. A longitudinal beam is provided on the upper parts of the two sets of gantry frames. First sliding seats are provided at both ends of the longitudinal beam. A first sliding block slidably connected to the first guide rail is provided under the first sliding seat. A first motor is provided on the upper part of the first sliding seat, and a first gear meshing with the first rack is provided on the output shaft of the first motor. The first motor drives the longitudinal beam to slide left and right on the gantry frame through the meshing of the first gear and the first rack. A second guide rail is provided under the longitudinal beam, and a second rack (not shown in the figure) is provided inside the second guide rail. A second sliding block is slidably connected to the second guide rail, and a second sliding seat is connected to the lower part of the second sliding block. A second motor is provided on the second sliding seat, and a second gear meshing with the second rack is connected to the output shaft of the second motor. The second motor drives the second sliding seat to slide back and forth on the longitudinal beam through the second gear and the second rack. A first cylinder is provided under the second sliding seat, and the lower end of the piston rod of the first cylinder is connected with a suspension rod. The suction cup assembly includes a connecting rod. One end of the connecting rod is connected with the suspension rod, and mounting brackets are provided on both sides of the other end of the connecting rod. The two sides of the mounting brackets are connected through a connecting plate, and a plurality of suction cups are provided on both sides of the mounting brackets and the connecting rod. A loading rack is provided under the gantry frame, and an unloading rack is provided on one side of the loading rack.

[0007] As a further preference of this technical solution, the lower end of the suspension rod is hinged to the connecting rod, and a second cylinder is hinged to each side of the suspension rod. The lower end of the piston rod of the second cylinder is hinged to the connecting rod. The two second cylinders are convenient for adjusting the inclination angle of the connecting rod to adapt to the sheet grabbing operation on the loading rack.

[0008] As a further preference of this technical solution, convex ears are provided at both ends of the upper part of the suspension rod, and guide rods are fixedly connected to the convex ears. The upper ends of the guide rods penetrate through the second sliding seat, and a limiting end plate is fixedly connected to the upper ends of the guide rods. The guide rods are used to limit the radial rotation of the suspension rod, avoid the torsion of the suction cup assembly, and ensure the precision of loading and unloading.

[0009] As a further preference of this technical solution, guide grooves are provided on both sides of the mounting brackets and the connecting rod, and guide blocks are slidably connected to the guide grooves. An L-shaped mounting plate is provided on one side of the mounting bracket, and the suction cup is fixedly mounted on the mounting plate. A screw rod is provided on one side of the guide block, and a fixing nut is threadedly connected to the screw rod passing through the mounting plate. The guide grooves and guide blocks are convenient for adjusting the distance between the suction cups in the front and back directions. An adjusting stud is provided on the upper part of the mounting bracket, and adjusting grooves slidably connected to the adjusting stud are provided at both ends of the connecting plate. An adjusting nut is provided on the upper part of the adjusting stud. The adjusting stud and the adjusting grooves are convenient for adjusting the width of the two sides of the mounting brackets, so as to adapt to the sheet grabbing operations of different lengths and widths.

[0010] As a further preference of this technical solution, a mechanical gripper is provided on the upper part of the suction cup assembly. The mechanical gripper includes a first fixed support, which is fixedly installed on the mounting frame. A fixed rod is fixedly connected to the first fixed support. The two ends of the fixed rod are rotatably connected to the gripper body. The lower part of the gripper body is bent inward. Several second fixed supports are provided on the upper part of the connecting rod. On both sides of the second fixed support, third cylinders are symmetrically hinged. The piston rod of the third cylinder is hinged to the upper part of the gripper body. After the suction cup assembly grabs the sheet, the piston rod of the third cylinder extends, and the gripper body rotates around the fixed rod, so that the lower end of the gripper body clamps the grabbed sheet, avoiding the sheet from falling during the loading and unloading process.

[0011] As a further preference of this technical solution, both the loading rack and the unloading rack adopt scissor lifts, which are convenient for adjusting the table height of the loading rack and the unloading rack, and cooperate with the first cylinder to improve the efficiency of sheet loading and unloading.

[0012] As a further preference of this technical solution, a column is provided at one end of the upper part of the loading rack, and a backing plate is provided at the other end of the loading rack. A pose adjustment plate is hinged to the upper part of the column. A limiting plate is provided at one end of the pose adjustment plate. A fourth cylinder is hinged to the lower part of the pose adjustment plate, and the lower end of the fourth cylinder is hinged to the loading rack. The pose adjustment plate is convenient for adjusting the initial position of the sheet. Specifically, after the sheet is placed on the loading rack, the piston rod of the fourth cylinder extends, causing the front end of the pose adjustment plate to lift, aligning the rear end of the sheet with the limiting plate, and realizing the pose adjustment of the sheet.

[0013] As a further preference of this technical solution, a number of evenly distributed bull's-eye bearings are provided on the pose adjustment plate, reducing the sliding resistance of the sheet.

[0014] As a further preference of this technical solution, retaining plates are provided on both sides of the pose adjustment plate. Waist-shaped grooves are provided on both sides of the pose adjustment plate. The lower ends of the retaining plates on both sides pass through the waist-shaped grooves and are threadedly connected with double-headed studs. The thread directions of the double-headed studs are opposite. A handwheel is connected to one end of the double-headed stud. Rotating the handwheel adjusts the distance between the retaining plates on both sides, further restricting the position of the sheet and improving the accuracy of sheet grasping and loading.

[0015] As a further preference of this technical solution, a base is provided at the lower part of the loading rack, and several springs are provided on the upper part of the base. The upper ends of the springs are fixedly connected to the lower end of the loading rack. When one sheet on the loading rack is grabbed by the suction cup assembly, the overall weight of the loading rack and the remaining sheets on it decreases. Under the action of the springs, the loading rack moves upward by a certain displacement to compensate for the height of the uppermost sheet, facilitating the precise grasping of the suction cup assembly.

[0016] The beneficial effects of the present invention are:

[0017] 1) The present invention uses a suction cup assembly to load and unload the plates, reducing the labor intensity of workers, improving the efficiency of plate pressing, and avoiding the risk of work-related injuries.

[0018] 2) The lower end of the suspension rod is hinged to the connecting rod, and a second cylinder is hinged to each side of the suspension rod. The lower end of the piston rod of the second cylinder is hinged to the connecting rod. The two second cylinders facilitate adjusting the inclination angle of the connecting rod to adapt to the plate gripping operation on the loading rack.

[0019] 3) Lugs are provided at both ends of the upper part of the suspension rod, and guide rods are fixedly connected to the lugs. The upper ends of the guide rods penetrate through the second sliding seat, and a limit end plate is fixedly connected to the upper ends of the guide rods. The guide rods are used to limit the radial rotation of the suspension rod, avoiding the torsion of the suction cup assembly and ensuring the accuracy of loading and unloading.

[0020] 4) Guide grooves are provided on both sides of the mounting frame and the connecting rod. Guide blocks are slidably connected in the guide grooves. An L-shaped mounting plate is provided on one side of the mounting frame, and the suction cup is fixedly mounted on the mounting plate. A screw rod is provided on one side of the guide block, and the screw rod passes through the mounting plate and is threadedly connected with a fixing nut. The guide grooves and guide blocks facilitate adjusting the distance of the suction cup in the front and back directions. An adjusting stud is provided on the upper part of the mounting frame, adjusting grooves slidably connected with the adjusting stud are provided at both ends of the connecting plate, and an adjusting nut is provided on the upper part of the adjusting stud. The adjusting stud and the adjusting grooves facilitate adjusting the width of the two mounting frames, so as to adapt to the plate gripping operations of different lengths and widths.

[0021] 5) A mechanical gripper is provided on the upper part of the suction cup assembly. After the suction cup assembly grabs the plate, the piston rod of the third cylinder extends, and the gripper body rotates around the fixed rod, so that the lower end of the gripper body clamps the grabbed plate, avoiding the plate from falling during the loading and unloading process.

[0022] 6) Both the loading rack and the unloading rack adopt scissor lift tables, which are convenient for adjusting the tabletop height of the loading rack and the unloading rack, and cooperate with the first cylinder to improve the efficiency of plate loading and unloading.

[0023] 7) A column is provided at one end of the upper part of the loading rack, a backing plate is provided at the other end of the loading rack, a pose adjustment plate is hinged to the upper part of the column, a limit plate is provided at one end of the pose adjustment plate, a fourth cylinder is hinged to the lower part of the pose adjustment plate, and the lower end of the fourth cylinder is hinged to the loading rack. The pose adjustment plate is convenient for adjusting the initial position of the plate.

[0024] 8) A number of evenly distributed bull's-eye bearings are provided on the pose adjustment plate, reducing the resistance of the plate sliding.

[0025] 9) Retaining plates are provided on both sides of the pose adjustment plate, waist-shaped grooves are provided on both sides of the pose adjustment plate, the lower ends of the retaining plates on both sides pass through the waist-shaped grooves and are threadedly connected with a double-headed stud, the thread directions of the double-headed stud are opposite, and a hand wheel is connected to one end of the double-headed stud. Rotating the hand wheel adjusts the distance between the retaining plates on both sides, further restricting the position of the plate and improving the accuracy of plate gripping and loading.

[0026] 10) A base is provided at the lower part of the loading rack, and several springs are provided on the upper part of the base. The upper ends of the springs are fixedly connected to the lower end of the loading rack. When a sheet on the loading rack is grabbed by the suction cup assembly and taken away one by one, the overall weight of the loading rack and the remaining sheets on its upper part decreases. Under the action of the springs, the loading rack moves upward by a certain displacement to compensate for the height of the uppermost sheet, facilitating the precise grasping of the suction cup assembly. Brief Description of the Drawings

[0027] Attached Figure 1 is a diagram showing the usage state of a cantilever type automatic loading and unloading device for pressing heat exchange sheets according to the present invention.

[0028] Attached Figure 2 is a schematic structural diagram of a cantilever type automatic loading and unloading device for pressing heat exchange sheets according to the present invention.

[0029] Attached Figure 3 is a cantilever type automatic loading and unloading device for pressing heat exchange sheets according to the present invention Figure 2 Partial enlarged view at A in the figure.

[0030] Attached Figure 4 is a schematic structural diagram of the first sliding seat in a cantilever type automatic loading and unloading device for pressing heat exchange sheets according to the present invention.

[0031] Attached Figure 5 is an assembly schematic diagram of the suction cup assembly and the longitudinal beam in a cantilever type automatic loading and unloading device for pressing heat exchange sheets according to the present invention.

[0032] Attached Figure 6 is a connection schematic diagram of the first cylinder in a cantilever type automatic loading and unloading device for pressing heat exchange sheets according to the present invention.

[0033] Attached Figure 7 is an assembly schematic diagram of the suction cup assembly and the mechanical gripper in a cantilever type automatic loading and unloading device for pressing heat exchange sheets according to the present invention.

[0034] Attached Figure 8 is a partial schematic diagram of the mechanical gripper in a cantilever type automatic loading and unloading device for pressing heat exchange sheets according to the present invention.

[0035] Attached Figure 9 is a schematic structural diagram of the loading rack in a cantilever type automatic loading and unloading device for pressing heat exchange sheets according to the present invention.

[0036] Attached Figure 10 is a schematic structural diagram of the baffle in a cantilever type automatic loading and unloading device for pressing heat exchange sheets according to the present invention.

[0037] Attached Figure 11 is a schematic diagram of the internal structure of the base in a cantilever type automatic loading and unloading device for pressing heat exchange sheets according to the present invention.

[0038] In the figure: 1. punching machine; 2. gantry; 201. column leg; 202. cross beam; 203. first guide rail; 204. first rack; 205. longitudinal beam; 206. first sliding seat; 207. first slider; 208. first motor; 209. first gear; 210. second sliding seat; 211. second slider; 212. second motor; 213. second gear; 214. first cylinder; 215. suspension rod; 216. guide rod; 217. limit end plate; 218. second cylinder; 3. suction cup assembly; 301. connecting rod; 302. mounting bracket; 303. guide groove; 304. guide block; 305. mounting plate; 306. suction cup; 307. adjusting stud; 308. connecting plate; 309. adjusting groove; 4. mechanical gripper; 401. first fixed support; 402. fixed rod; 403. gripper body; 404. third cylinder; 405. second fixed support; 5. loading rack; 501. base; 502. pose adjustment plate; 503. bull's eye bearing; 504. kidney-shaped groove; 505. baffle; 506. stud; 507. hand wheel; 508. spring; 509. fourth cylinder; 510. backing plate; 511. column; 512. limit plate; 6. unloading rack. Detailed implementation manners

[0039] The following combines the attached Figure 1-11 , and clearly and completely describes the technical solutions in the embodiments of the present invention. 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.

[0040] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, specific orientation structure and operation, and therefore should not be construed as a limitation to the present invention.

[0041] Such as Figure 1-5As shown in the figure, a cantilever type automatic loading and unloading device for pressing heat exchange plates includes two sets of gantry frames 2 and a suction cup assembly 3. The gantry frame 2 includes a cross beam 202 and column legs 201 arranged at both ends of the cross beam 202. A first guide rail 203 is provided on the upper part of the cross beam 202, and a first rack 204 is provided on one side of the first guide rail 203. A longitudinal beam 205 is provided on the upper parts of the two sets of gantry frames 2. First sliding seats 206 are provided at both ends of the longitudinal beam 205. A first sliding block 207 which is slidably connected to the first guide rail 203 is provided at the lower part of the first sliding seat 206. A first motor 208 is provided on the upper part of the first sliding seat 206. A first gear 209 which meshes with the first rack 204 is provided on the output shaft of the first motor 208. The first motor 208 drives the longitudinal beam 205 to slide left and right on the gantry frame 2 through the meshing of the first gear 209 and the first rack 204. A second guide rail is provided at the lower part of the longitudinal beam 205. A second rack (not shown in the figure) is provided inside the second guide rail. A second sliding block 211 is slidably connected to the second guide rail. A second sliding seat 210 is connected to the lower part of the second sliding block 211. A second motor 212 is provided on the second sliding seat 210. A second gear 213 which meshes with the second rack is connected to the output shaft of the second motor 212. The second motor 212 drives the second sliding seat 210 to slide back and forth on the longitudinal beam 205 through the second gear 213 and the second rack. A first air cylinder 214 is provided at the lower part of the second sliding seat 210. The lower end of the piston rod of the first air cylinder 214 is connected to a suspension rod 215. The suction cup assembly 3 includes a connecting rod 301. One end of the connecting rod 301 is connected to the suspension rod 215. Mounting brackets 302 are provided on both sides of the other end of the connecting rod 301. The two side mounting brackets 302 are connected through a connecting plate 308. A number of suction cups 306 are provided on both sides of the mounting brackets 302 and the connecting rod 301. A loading rack 5 is provided at the lower part of the gantry frame 2. A unloading rack 6 is provided on one side of the loading rack 5.

[0042] As Figure 5-6 shown, in this embodiment, the lower end of the suspension rod 215 is hinged to the connecting rod 301. A second air cylinder 218 is hinged to each side of the suspension rod. The lower end of the piston rod of the second air cylinder 218 is hinged to the connecting rod 301. The two second air cylinders 218 are convenient for adjusting the inclination angle of the connecting rod 301 to adapt to the plate grabbing operation on the loading rack 5.

[0043] As Figure 5-6 shown, in this embodiment, lugs are provided at both ends of the upper part of the suspension rod 215. Guide rods 216 are fixedly connected to the lugs. The upper ends of the guide rods 216 penetrate through the second sliding seat 210, and a limiting end plate 217 is fixedly connected to the upper ends of the guide rods 216. The guide rods 216 are used to limit the radial rotation of the suspension rod 215, avoid the torsion of the suction cup assembly 3, and ensure the precision of loading and unloading.

[0044] As Figure 7-8As shown, in this embodiment, guide grooves 303 are provided on both sides of the mounting bracket 302 and the connecting rod 301. Guide blocks 304 are slidably connected in the guide grooves 303. An L-shaped mounting plate 305 is provided on one side of the mounting bracket 302. The suction cup 306 is fixedly mounted on the mounting plate 305. A screw rod is provided on one side of the guide block 304. The screw rod passes through the mounting plate 305 and is threadedly connected with a fixing nut. The guide grooves 303 and the guide blocks 304 facilitate adjusting the distance between the suction cups 306 in the front and rear directions. An adjusting stud 307 is provided on the upper part of the mounting bracket 302. Adjusting grooves 309 for slidably connecting with the adjusting stud 307 are provided at both ends of the connecting plate 308. An adjusting nut is provided on the upper part of the adjusting stud 307. The adjusting stud 307 and the adjusting grooves 309 facilitate adjusting the width of the two mounting brackets 302, so as to adapt to the gripping operation of plates with different lengths and widths.

[0045] As Figure 7 shown, in this embodiment, a mechanical gripper 4 is provided on the upper part of the suction cup assembly 3. The mechanical gripper 4 includes a first fixed support 401 which is fixedly mounted on the mounting bracket 302. A fixed rod 402 is fixedly connected to the first fixed support 401. The two ends of the fixed rod 402 are rotatably connected to a gripper body 403. The lower part of the gripper body 403 is bent inward. A plurality of second fixed supports 405 are provided on the upper part of the connecting rod 301. Two sides of the second fixed supports 405 are symmetrically hinged with third cylinders 404. The piston rods of the third cylinders 404 are hinged to the upper part of the gripper body 403. After the suction cup assembly 3 grabs the plate, the piston rods of the third cylinders 404 extend, and the gripper body 403 rotates around the fixed rod 402, so that the lower end of the gripper body 403 clamps the grabbed plate, avoiding the plate from falling during the loading and unloading process.

[0046] As Figure 1-2 、 Figure 9 、 Figure 11 shown, in this embodiment, both the loading rack 5 and the unloading rack 6 adopt scissor lifts, which are convenient for adjusting the tabletop heights of the loading rack 5 and the unloading rack 6, and cooperate with the first cylinder 214 to improve the efficiency of plate loading and unloading.

[0047] As Figure 11 shown, in this embodiment, a column 511 is provided at one end of the upper part of the loading rack 5, and a backing plate 510 is provided at the other end of the loading rack 5. A pose adjustment plate 502 is hinged to the upper part of the column 511. A limit plate 512 is provided at one end of the pose adjustment plate 502. A fourth cylinder 509 is hinged to the lower part of the pose adjustment plate 502. The lower end of the fourth cylinder 509 is hinged to the loading rack 5. The pose adjustment plate 502 is convenient for adjusting the initial position of the plate. Specifically, after the plate is placed on the loading rack 5, the piston rod of the fourth cylinder 509 extends, so that the front end of the pose adjustment plate 502 is lifted, and the rear end of the plate is aligned with the limit plate 512, realizing the pose adjustment of the plate.

[0048] As Figure 9 shown, in this embodiment, a number of evenly distributed bull's-eye bearings 503 are provided on the pose adjustment plate 502, reducing the resistance of the plate sliding.

[0049] As Figure 9-10 shown, in this embodiment, baffle plates 505 are provided on both sides of the pose adjustment plate 502, waist-shaped grooves 504 are provided on both sides of the pose adjustment plate 502, the lower ends of the baffle plates 505 on both sides pass through the waist-shaped grooves 504 and are threadedly connected with double-headed studs 506, the thread directions of the double-headed studs 506 are opposite, one end of the double-headed stud 506 is connected with a handwheel 507, and by rotating the handwheel 507, the distance between the baffle plates 505 on both sides is adjusted, further restricting the position of the plate, and improving the accuracy of plate grasping and feeding.

[0050] As Figure 11 shown, in this embodiment, a base 501 is provided at the lower part of the loading rack 5, a number of springs 508 are provided at the upper part of the base 501, and the upper ends of the springs 508 are fixedly connected with the lower end of the loading rack 5; when one piece of the plate on the loading rack 5 is grabbed by the suction cup assembly 3, the overall weight of the loading rack 5 and the remaining plates on its upper part decreases, and under the action of the springs 508, the loading rack 5 moves upward by a certain displacement to compensate for the height of the uppermost plate, facilitating the precise grasping of the suction cup assembly 3.

[0051] After the plate is transferred to the loading rack 5, first rotate the handwheel 507 to clamp the plate with the baffle plates 505 on both sides (not clamped here), limit the left and right directions of the plate, then the fourth cylinder 509 drives the front end of the pose adjustment plate 502 to rise, align the lower end of the plate with the limit plate 512, realize the pose adjustment of the plate, and then the fourth cylinder 509 retracts and the pose adjustment plate 502 is laid flat. When loading the plate, the suction cup assembly 3 moves on the gantry 2 to directly above the plate, the piston rod of the first cylinder 214 extends to grab the plate, and then the mechanical gripper 4 clamps the two sides of the plate again to ensure the stability of plate grasping; after the plate is grabbed, the second motor 212 drives the second slide 210 to move on the longitudinal beam 205 towards the punching machine 1, thereby driving the suction cup assembly 3 and the plate it grabs to move into the punching machine 1. When the plate moves directly above the lower die, the mechanical gripper 4 releases the plate, then the piston rod of the first cylinder 214 extends again to place the plate on the lower die, release the suction cup 306, make the plate fall on the lower die, and then the suction cup assembly 3 withdraws from the punching machine 1, and the punching machine 1 starts to press the plate;

[0052] After the sheet pressing is completed, the suction cup assembly 3 extends into the stamping machine 1 again to grab the pressed sheet. Similarly, the mechanical gripper 4 clamps the sheet, and then the sheet is carried out of the stamping machine 1. Then, the longitudinal beam 205 moves on the gantry 2 in the direction of the blanking rack 6, and places the pressed sheet on the blanking rack 6.

[0053] The above content is only an example and description of the structure of the present invention. Those skilled in the art of this technology can make various modifications, supplements, or use similar methods to replace the specific embodiments described, as long as they do not deviate from the structure of the invention or exceed the scope defined by this claim book, they should belong to the protection scope of the present invention.

Claims

1. A cantilever type automatic loading and unloading device for pressing heat exchange plates, comprising two groups of gantry frames and a suction cup assembly. The gantry frame includes a cross beam and column legs arranged at both ends of the cross beam. A first guide rail is provided on the upper part of the cross beam, and a first rack is provided on one side of the first guide rail. A longitudinal beam is provided on the upper parts of the two groups of gantry frames. First sliding seats are provided at both ends of the longitudinal beam. A first slider slidably connected to the first guide rail is provided under the first sliding seat. A first motor is provided on the upper part of the first sliding seat, and a first gear meshing with the first rack is provided on the output shaft of the first motor. A second guide rail is provided on the lower part of the longitudinal beam, and a second rack is provided inside the second guide rail. A second slider is slidably connected to the second guide rail, and a second sliding seat is connected to the lower part of the second slider. A second motor is provided on the second sliding seat, and a second gear meshing with the second rack is provided on the output shaft of the second motor. Characterized in that, A first cylinder is provided under the second sliding seat, and the lower end of the piston rod of the first cylinder is connected to a suspension rod. The suction cup assembly includes a connecting rod. One end of the connecting rod is connected to the suspension rod, and mounting brackets are provided on both sides of the other end of the connecting rod. The two mounting brackets on both sides are connected by a connecting plate. A number of suction cups are provided on both sides of the mounting brackets and the connecting rod. A loading rack is provided under the gantry frame, and an unloading rack is provided on one side of the loading rack. A mechanical gripper is provided on the upper part of the suction cup assembly. The mechanical gripper includes a first fixed support seat fixedly installed on the mounting bracket. A fixed rod is fixedly connected to the first fixed support seat. The two ends of the fixed rod are rotatably connected to a gripper body. The lower part of the gripper body is bent inward. A number of second fixed support seats are provided on the upper part of the connecting rod. Third cylinders are symmetrically hinged on both sides of the second fixed support seats, and the piston rods of the third cylinders are hinged to the upper part of the gripper body.

2. The cantilever type automatic loading and unloading device for pressing heat exchange plates according to claim 1, Characterized in that, The lower end of the suspension rod is hinged to the connecting rod, and a second cylinder is hinged on each side of the suspension rod. The lower end of the piston rod of the second cylinder is hinged to the connecting rod.

3. The cantilever type automatic loading and unloading device for pressing heat exchange plates according to claim 2, Characterized in that, Lugs are provided at both ends of the upper part of the suspension rod, and guide rods are fixedly connected to the lugs. The upper ends of the guide rods penetrate through the second sliding seat, and a limit end plate is fixedly connected to the upper ends of the guide rods.

4. The cantilever type automatic loading and unloading device for pressing heat exchange plates according to claim 1, Characterized in that, Guide grooves are provided on both sides of the mounting brackets and the connecting rod. Guide blocks are slidably connected in the guide grooves. An L-shaped mounting plate is provided on one side of the mounting bracket. The suction cup is fixedly installed on the mounting plate. A screw rod is provided on one side of the guide block. The screw rod passes through the mounting plate and is threadedly connected with a fixing nut. An adjusting stud is provided on the upper part of the mounting bracket. Adjusting grooves slidably connected to the adjusting stud are provided at both ends of the connecting plate. An adjusting nut is provided on the upper part of the adjusting stud.

5. The cantilever type automatic loading and unloading device for pressing heat exchange plates according to claim 1, Characterized in that, Both the loading rack and the unloading rack adopt scissor lift tables.

6. The cantilever type automatic loading and unloading device for pressing heat exchange plates according to claim 1, Characterized in that, One end of the upper part of the loading rack is provided with a column, and the other end of the loading rack is provided with a backing plate. The upper part of the column is hinged with a pose adjustment plate. One end of the pose adjustment plate is provided with a limiting plate. The lower part of the pose adjustment plate is hinged with a fourth cylinder, and the lower end of the fourth cylinder is hinged with the loading rack.

7. An overhanging type automatic loading and unloading device for pressing heat exchange plates according to claim 6, characterized in that a plurality of evenly distributed bull's eye bearings are provided on the pose adjustment plate.

8. An overhanging type automatic loading and unloading device for pressing heat exchange plates according to claim 6, characterized in that material blocking plates are arranged on both sides of the pose adjustment plate. Waist-shaped grooves are arranged on both sides of the pose adjustment plate. The lower ends of the material blocking plates on both sides pass through the waist-shaped grooves and are threadedly connected with double-headed studs. The thread directions of the double-headed studs are opposite. One end of the double-headed stud is connected with a hand wheel.

9. An overhanging type automatic loading and unloading device for pressing heat exchange plates according to any one of claims 1-8, characterized in that a base is arranged at the lower part of the loading rack, and a plurality of springs are arranged on the upper part of the base. The upper ends of the springs are fixedly connected with the lower end of the loading rack.

Images