CN115255182A - A cantilever type automatic loading and unloading device for pressing heat exchange plates - Google Patents

Abstract

The invention discloses a cantilever type automatic loading and unloading device for pressing heat exchange plates, which comprises two sets of gantry frames and suction cup assemblies. The upper parts of the two sets of gantry frames are provided with longitudinal beams; both ends of the longitudinal beams are provided with first sliding seats The lower part of the second sliding seat is provided with a first cylinder, and the lower end of the piston rod of the first cylinder is connected with a hanger rod; the suction cup assembly includes a connecting rod, one end of the connecting rod is connected with the hanger rod, and the other end of the connecting rod is provided with mounting brackets on both sides, two The mounting frame on the side is connected by a connecting plate, and there are several suction cups on both sides of the mounting frame and the connecting rod; the lower part of the gantry frame is provided with a feeding frame, and one side of the feeding frame is provided with a feeding frame. The suction cup assembly of the invention loads and unloads the plates, reduces the labor intensity of workers, improves the efficiency of plate pressing, and avoids the risk of work-related injuries.

Description

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

technical field

The invention belongs to the field of heat exchanger plate pressing, in particular to a cantilever type automatic loading and unloading device for heat exchange plate pressing.

Background technique

The plate heat exchanger is a new type of high-efficiency heat exchanger formed by stacking a series of metal plates with a certain corrugated shape. It has high heat exchange efficiency, small heat loss, compact and light structure, small footprint, and easy installation. Easy cleaning, wide application, long service life and so on. In the case of the same pressure loss, its heat transfer coefficient is 3-5 times higher than that of the shell-and-tube heat exchanger, and the floor area is one-third of that of the tubular heat exchanger. The main heat exchange element of the plate heat exchanger is a metal corrugated plate, which is pressed and formed by a hydraulic press.

At present, when pressing plates of plate heat exchangers, multiple manual handling and loading and unloading are usually used, which is time-consuming and laborious, and the work efficiency is low. When pressing large-scale heat exchanger plates, due to the long length of the plates, manual handling is easy to cause blanks Bending deformation, which affects the forming accuracy of the plate; in addition, manual loading and unloading requires workers to work under the hydraulic press, which poses a risk of industrial injury. With the development of automation technology, there is an urgent need for an automatic loading and unloading equipment that can replace manual loading and unloading.

Contents of the invention

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 heat exchange plate pressing to solve the problems of high work intensity and low work efficiency of manual loading and unloading during the existing plate pressing , and there is a risk of work-related injuries.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A cantilever-type automatic loading and unloading device for heat exchange plate pressing, including two sets of gantry frames and suction cup assemblies, the gantry frame includes a beam and column legs arranged at both ends of the beam, the upper part of the beam is provided with a first guide rail, the first guide rail One side is provided with a first rack, and the upper part of the two groups of gantry frames is provided with a longitudinal beam; the two ends of the longitudinal beam are provided with a first sliding seat, and the lower part of the first sliding seat is provided with a first slider slidingly connected with the first guide rail , the upper part of the first sliding seat is provided with a first motor, and the output shaft of the first motor is provided with a first gear meshing with the first rack; the first motor drives the longitudinal beam through the meshing of the first gear and the first rack Slide left and right on the gantry; the lower part of the longitudinal beam is provided with a second guide rail, and the inside of the second guide rail is provided with a second rack (not shown in the figure), and the second guide rail is slidably connected with a second slider, The bottom of the second slider is connected with a second slide seat, the second slide seat is provided with a second motor, and the output shaft of the second motor is connected with a second gear meshed with the second rack; the second motor passes through the second motor. The second gear and the second rack drive the second sliding seat to slide back and forth on the longitudinal beam; the lower part of the second sliding seat is provided with a first cylinder, and the lower end of the piston rod of the first cylinder is connected with a boom; the suction cup assembly includes a connecting rod. One end of the connecting rod is connected with the boom, and the other end of the connecting rod is provided with a mounting frame on both sides, and the mounting frames on both sides are connected by a connecting plate. Loading rack, one side of the loading rack is provided with a lowering rack.

As a further preference of this technical solution, the lower end of the boom is hinged to the connecting rod, and a second cylinder is hinged on both sides of the boom, and the lower end of the piston rod of the second cylinder is hinged to the connecting rod. The two second cylinders are convenient Adjust the inclination angle of the connecting rod to adapt to the plate grabbing operation on the loading rack.

As a further preference of this technical solution, lugs are provided at both ends of the upper part of the boom, and guide rods are fixedly connected to the lugs, the upper end of the guide rod runs through the second sliding seat, and the upper end of the guide rod is fixedly connected to the limit end plate ; The guide rod is used to limit the radial rotation of the boom, avoiding the torsion of the suction cup assembly and ensuring the accuracy of loading and unloading.

As a further optimization of this technical solution, guide grooves are provided on both sides of the mounting frame and the connecting rod, and guide blocks are slidably connected in the guide grooves, and an L-shaped mounting plate is provided on one side of the mounting frame, and the suction cup is fixedly Installed on the mounting plate, a screw is provided on one side of the guide block, and the screw is threaded through the mounting plate to be connected with a fixed nut; the guide groove and the guide block are convenient for adjusting the distance between the front and rear of the suction cup; the upper part of the mounting frame is provided with an adjusting stud, so Both ends of the connecting plate are provided with adjustment grooves slidingly connected with the adjustment studs, and the upper part of the adjustment studs is provided with adjustment nuts. The adjustment studs and the adjustment grooves are convenient for adjusting the width of the mounting brackets on both sides, so as to adapt to plates of different lengths and widths. Fetch jobs.

As a further preference of this technical solution, a mechanical gripper is provided on the upper part of the suction cup assembly, and the mechanical gripper includes a first fixed support, the first fixed support is fixedly installed on the mounting frame, and the first fixed support The fixed bottom is connected with a fixed rod, the two ends of the fixed rod are rotatably connected with the gripper body, the lower part of the gripper body is bent inward, the upper part of the connecting rod is provided with several second fixed supports, and the second fixed The two sides of the support are symmetrically hinged with a third cylinder, the piston rod of the third cylinder is hinged with the upper part of the gripper body; after the suction cup assembly grabs the plate, the piston rod of the third cylinder is elongated, and the gripper body wraps around the fixed rod Rotate, so that the lower end of the gripper body can clamp the grasped sheet, avoiding the falling of the sheet during loading and unloading.

As a further optimization of the technical solution, both the loading rack and the unloading rack adopt a scissor lift platform, which is convenient for adjusting the table heights of the loading rack and the unloading rack, and cooperates with the first cylinder to improve the efficiency of plate loading and unloading.

As a further optimization of this technical solution, a column is provided at one end of the upper part of the feeding frame, a backing plate is provided at the other end of the feeding frame, a pose adjustment plate is hinged on the upper part of the column, and a limiter is provided at one end of the pose adjustment plate. The lower part of the posture adjustment plate is hinged with a fourth cylinder, and the lower end of the fourth cylinder is hinged with the loading frame. The posture adjustment plate is convenient for adjusting the initial position of the sheet. Specifically, after the sheet is placed on the loading frame , the piston rod of the fourth cylinder is extended to lift the front end of the pose adjustment plate, align the rear end of the plate with the limit plate, and realize the pose adjustment of the plate.

As a further preference of the technical solution, the posture adjustment plate is provided with a number of evenly distributed bull's-eye bearings, which reduces the sliding resistance of the plates.

As a further preference of this technical solution, there are material retaining plates on both sides of the posture adjustment plate, waist-shaped grooves are provided on both sides of the posture adjustment plate, and the lower ends of the material retaining plates on both sides pass through the waist-shaped groove threads. It is connected with double-ended studs, and the screw threads of the double-ended studs are in the opposite direction. One end of the double-ended studs is connected with a hand wheel. Turn the hand wheel to adjust the distance between the baffle plates on both sides, further constraining the position of the plates and improving It improves the accuracy of sheet picking and loading.

As a further optimization of the technical solution, a base is provided on the lower part of the feeding rack, and a number of springs are arranged on the upper part of the base, and the upper ends of the springs are fixedly connected to the lower ends of the feeding rack; When grabbing one piece, the overall weight of the loading rack and the remaining plates on the upper part will drop. Under the action of the spring, the loading rack will move upwards to compensate for the height of the uppermost plate, which is convenient for the precise grasping of the suction cup assembly.

The beneficial effects of the present invention are:

1) The present invention uses the suction cup assembly to load and unload the plates, which reduces the labor intensity of workers, improves the efficiency of plate pressing, and avoids the risk of work-related injuries.

2) The lower end of the boom is hinged with the connecting rod. There is a second cylinder hinged on both sides of the boom. The lower end of the piston rod of the second cylinder is hinged with the connecting rod. Plate grabbing operation on the material rack.

3) There are lugs on both ends of the upper part of the boom, and a guide rod is fixedly connected to the lugs. The upper end of the guide rod runs through the second sliding seat, and the upper end of the guide rod is fixedly connected to the limit end plate; the guide rod is used to limit the suspension of the boom. The radial rotation avoids the torsion of the suction cup assembly and ensures the accuracy of loading and unloading.

4) There are guide grooves on both sides of the mounting frame and the connecting rod, and a guide block is slidably connected in the guide groove. There is an L-shaped mounting plate on one side of the mounting frame, and the suction cup is fixedly installed on the mounting plate. The screw rod passes through the mounting plate and is threaded to be connected with a fixed nut; the guide groove and the guide block are convenient for adjusting the distance between the front and rear of the suction cup; the upper part of the mounting frame is provided with an adjusting stud, and the two ends of the connecting plate are provided with an adjusting groove slidingly connected with the adjusting stud , the upper part of the adjusting stud is provided with an adjusting nut, the adjusting stud and the adjusting slot are convenient for adjusting the width of the mounting brackets on both sides, so as to adapt to the plate grabbing operation of different lengths and widths.

5) There is a mechanical gripper on the upper part of the suction cup assembly. After the suction cup assembly grabs the plate, the piston rod of the third cylinder is extended, and the gripper body rotates around the fixed rod, so that the lower end of the gripper body clamps the grabbed plate. Take it, avoiding the falling of the plate during loading and unloading.

6) Both the loading rack and the unloading rack adopt scissor-type lifting platform, which is convenient for adjusting the table height of the loading rack and unloading rack, and cooperates with the first cylinder to improve the efficiency of plate loading and unloading.

7) There is a column at one end of the upper part of the loading frame, and a backing plate at the other end of the loading frame. The upper part of the column is hinged with a pose adjustment plate, and one end of the pose adjustment plate is provided with a limit plate. , the lower end of the fourth cylinder is hinged with the loading frame, and the posture adjustment plate is convenient for adjusting the initial position of the plate.

8) There are a number of evenly distributed bull's-eye bearings on the pose adjustment plate, which reduces the sliding resistance of the plate.

9) There are stoppers on both sides of the pose adjustment plate, waist-shaped grooves are arranged on both sides of the pose adjustment plate, and the lower ends of the stoppers on both sides pass through the waist-shaped grooves and are threaded with double-ended studs. The screw thread of the column is in the opposite direction. One end of the double-ended stud is connected with a hand wheel. Turn the hand wheel to adjust the distance between the baffle plates on both sides, further constraining the position of the plate, and improving the accuracy of plate grabbing and feeding. .

10) There is a base at the lower part of the feeding rack, and several springs are arranged at the upper part of the base, and the upper end of the spring is fixedly connected with the lower end of the feeding rack; And the overall weight of the remaining plates on the upper part is reduced. Under the action of the spring, the loading frame moves upward to a certain extent to compensate for the height of the uppermost plate, which is convenient for the precise grasping of the suction cup assembly.

Description of drawings

Accompanying drawing 1 is the use status diagram of a cantilever type automatic loading and unloading device for heat exchange plate pressing of the present invention.

Accompanying drawing 2 is a structural schematic diagram of a cantilever type automatic loading and unloading device for heat exchange plate pressing according to the present invention.

Accompanying drawing 3 is a cantilever-type automatic loading and unloading device for pressing heat exchange plates of the present invention, which is a partially enlarged view of A in Figure 2 .

Accompanying drawing 4 is a schematic diagram of the structure of the first sliding seat in a cantilever type automatic loading and unloading device for heat exchange plate pressing according to the present invention.

Accompanying drawing 5 is a schematic diagram of the assembly of the suction cup assembly and the longitudinal beam in a cantilever type automatic loading and unloading device for heat exchange plate pressing according to the present invention.

Accompanying drawing 6 is a schematic diagram of the connection of the first cylinder in a cantilever type automatic loading and unloading device for heat exchange plate pressing according to the present invention.

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

Accompanying drawing 8 is a schematic diagram of a part of a mechanical gripper in a cantilever type automatic loading and unloading device for heat exchange plate pressing according to the present invention.

Accompanying drawing 9 is a schematic diagram of the structure of the feeding rack in the cantilever type automatic loading and unloading device for heat exchange plate pressing according to the present invention.

Accompanying drawing 10 is a structural schematic diagram of a baffle plate in a cantilever type automatic loading and unloading device for pressing heat exchange plates according to the present invention.

Figure 11 is a schematic diagram of the internal structure of the base of a cantilever type automatic loading and unloading device for heat exchange plate pressing according to the present invention.

In the figure: 1, stamping machine; 2, gantry frame; 201, column leg; 202, beam; 203, first guide rail; 204, first rack; 205, longitudinal beam; 206, first sliding seat; 207, first One slider; 208, the first motor; 209, the first gear; 210, the second slide; 211, the second slider; 212, the second motor; 213, the second gear; 214, the first cylinder; 215, Suspender; 216, guide rod; 217, limit end plate; 218, second cylinder; 3, suction cup assembly; 301, connecting rod; 302, mounting frame; 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, the first fixed support; 402, fixed rod; Cylinder; 405, second fixed support; 5, feeding rack; 501, base; 502, posture adjustment plate; 503, bull's-eye bearing; 507, hand wheel; 508, spring; 509, the fourth cylinder; 510, backing plate; 511, column; 512, limit plate; 6, blanking rack.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings 1-11. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientations or positional relationships indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or It should not be construed as limiting the invention by implying that a referenced device or element must have a particular orientation, configuration, and operation in a particular orientation.

As shown in Figures 1-5, a cantilever type automatic loading and unloading device for heat exchange plate pressing includes two sets of gantry frames 2 and suction cup assemblies 3, the gantry frame 2 includes a beam 202 and columns arranged at both ends of the beam 202 The legs 201, the top of the beam 202 are provided with a first guide rail 203, one side of the first guide rail 203 is provided with a first rack 204, and the upper parts of the two groups of gantry frames 2 are provided with a longitudinal beam 205; the two ends of the longitudinal beam 205 are provided with first Sliding seat 206, first sliding seat 206 bottom is provided with the first sliding block 207 that is slidably connected with first guide rail 203, and described first sliding seat 206 top is provided with first motor 208, and the output shaft of first motor 208 is provided with There is a first gear 209 engaged with the first rack 204; the first motor 208 drives the longitudinal beam 205 to slide left and right on the gantry 2 through the engagement of the first gear 209 and the first rack 204; the lower part of the longitudinal beam 205 is provided with The second guide rail, the inside of the second guide rail is provided with a second rack (not shown), the second guide rail is slidably connected with a second slide block 211, and the second slide block 211 bottom is connected with a second slide seat 210 , the second slide 210 is provided with a second motor 212, the output shaft of the second motor 212 is connected with a second gear 213 meshing with the second rack; the second motor 212 passes through the second gear 213 and the second The rack drives the second sliding seat 210 to slide back and forth on the longitudinal beam 205; the lower part of the second sliding seat 210 is provided with a first cylinder 214, and the lower end of the piston rod of the first cylinder 214 is connected with a suspension rod 215; the suction cup assembly 3 Including a connecting rod 301, one end of the connecting rod 301 is connected with the suspension rod 215, and the other end of the connecting rod 301 is provided with a mounting frame 302 on both sides, and the mounting frames 302 on both sides are connected by a connecting plate 308, and the mounting frame 302 and the connecting rod 301 are provided on both sides. There are several suction cups 306; the bottom of the gantry 2 is provided with a loading frame 5, and one side of the loading frame 5 is provided with a blanking frame 6.

As shown in Figures 5-6, in this embodiment, the lower end of the boom 215 is hinged to the connecting rod 301, and a second cylinder 218 is hinged on both sides of the boom, and the lower end of the piston rod of the second cylinder 218 is connected to the connecting rod 301. The connecting rod 301 is hinged, and the two second cylinders 218 are convenient for adjusting the inclination angle of the connecting rod 301, so as to adapt to the plate grabbing operation on the feeding rack 5 .

As shown in Figures 5-6, in this embodiment, lugs are provided at both ends of the upper part of the suspension rod 215, and guide rods 216 are fixedly connected to the lugs, and the upper ends of the guide rods 216 pass through the second sliding seat 210, and The upper end of the guide rod 216 is fixedly connected to the limit end plate 217; the guide rod 216 is used to limit the radial rotation of the suspension rod 215, avoiding the twisting of the suction cup assembly 3 and ensuring the accuracy of loading and unloading.

As shown in Figures 7-8, in this embodiment, guide grooves 303 are provided on both sides of the mounting frame 302 and the connecting rod 301, and guide blocks 304 are slidably connected in the guide grooves 303, and the mounting frame 302 One side is provided with L-shaped mounting plate 305, and sucker 306 is fixedly installed on the mounting plate 305, and guide block 304 side is provided with screw rod, and screw rod passes mounting plate 305 and is threadedly connected with fixing nut; Guide groove 303 and guide block 304 facilitate Adjust the distance between the front and rear directions of the suction cup 306; the top of the mounting bracket 302 is provided with an adjustment stud 307, the two ends of the connecting plate 308 are provided with an adjustment slot 309 that is slidingly connected with the adjustment stud 307, and the top of the adjustment stud 307 is provided with an adjustment The nuts, the adjusting studs 307 and the adjusting slots 309 are convenient for adjusting the width of the mounting brackets 302 on both sides, so as to adapt to the grasping operation of plates of different lengths and widths.

As shown in Figure 7, in this embodiment, a mechanical gripper 4 is provided on the upper part of the suction cup assembly 3, and the mechanical gripper 4 includes a first fixed support 401, and the first fixed support 401 is fixedly installed on the On the frame 302, a fixed rod 402 is connected to the fixed bottom of the first fixed support 401, and the two ends of the fixed rod 402 are rotatably connected to the handle body 403, and the lower part of the handle body 403 is bent inwardly. The upper part of the connecting rod 301 is provided with a number of second fixed supports 405, and the two sides of the second fixed supports 405 are symmetrically hinged with a third cylinder 404, and the piston rod of the third cylinder 404 is hinged with the upper part of the gripper body 403; the suction cup assembly 3 After the sheet is grabbed, the piston rod of the third cylinder 404 is extended, and the gripper body 403 rotates around the fixed rod 402, so that the lower end of the gripper body 403 grips the grabbed sheet, avoiding the loading and unloading of the sheet fall in the process.

As shown in Fig. 1-2, Fig. 9, and Fig. 11, in this embodiment, the described loading rack 5 and the unloading rack 6 all adopt a scissor lift platform, which is convenient for adjusting the position of the loading rack 5 and the unloading rack 6. The height of the table top cooperates with the first cylinder 214 to improve the efficiency of plate loading and unloading.

As shown in Figure 11, in this embodiment, a column 511 is provided at one end of the upper part of the feeding rack 5, a backing plate 510 is provided at the other end of the feeding rack 5, and a posture adjustment plate 502 is hinged on the upper part of the column 511, One end of the pose adjustment plate 502 is provided with a limit plate 512, the bottom of the pose adjustment plate 502 is hinged with a fourth cylinder 509, the lower end of the fourth cylinder 509 is hinged with the feeding rack 5, and the pose adjustment plate 502 is convenient for adjusting the plate. The initial position of the sheet, specifically, after the sheet is placed on the loading rack 5, the piston rod of the fourth cylinder 509 is extended to lift the front end of the posture adjustment plate 502, and the rear end of the sheet is aligned with the limit plate. 512 alignment to realize the pose adjustment of the pattern.

As shown in FIG. 9 , in this embodiment, the posture adjustment plate 502 is provided with a number of evenly distributed bull's-eye bearings 503 , which reduces the sliding resistance of the plate.

As shown in Figures 9-10, in this embodiment, material stoppers 505 are provided on both sides of the pose adjustment plate 502, and waist-shaped grooves 504 are provided on both sides of the pose adjustment plate 502. The lower end of the material plate 505 passes through the waist-shaped groove 504 and is threadedly connected with a double-ended stud 506. The thread direction of the double-ended stud 506 is opposite, and one end of the double-ended stud 506 is connected with a handwheel 507. Turn the handwheel 507 to adjust The distance between the side baffles 505 further constrains the position of the plates, improving the accuracy of grabbing and feeding the plates.

As shown in Figure 11, in this embodiment, the bottom of the feeding rack 5 is provided with a base 501, and the upper part of the base 501 is provided with several springs 508, and the upper ends of the springs 508 are fixedly connected with the lower end of the feeding rack 5; When one piece of sheet on the feeding rack 5 is grabbed by the suction cup assembly 3, the overall weight of the feeding rack 5 and the rest of the upper part of the sheet will drop. The height of the uppermost plate is compensated to facilitate the precise grabbing of the suction cup assembly 3 .

After the sheet is transferred to the loading rack 5, first turn the handwheel 507 to clamp the sheet with the stoppers 505 on both sides (here is not clamping), and limit the left and right directions of the sheet, and then the fourth cylinder 509 Drive 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, then retract the fourth cylinder 509, and put the pose adjustment plate 502 flat. When the sheet is loaded, the suction cup assembly 3 moves to the top of the sheet on the gantry 2, and the piston rod of the first cylinder 214 is extended to grab the sheet, and then the mechanical gripper 4 is used for both sides of the sheet. Secondary clamping to ensure the stability of the plate grasping; after the plate is grasped, the second motor 212 drives the second sliding seat 210 to move on the longitudinal beam 205 to the punching machine 1, thereby driving the suction cup assembly 3 and its grasping The plate moves into the punching machine 1. When the plate moves to the top of the lower mold, the mechanical gripper 4 releases the plate, and then the piston rod of the first cylinder 214 is extended again, and the plate is placed on the lower mold. , loosen the suction cup 306, so that the sheet falls on the lower mold, and then the suction cup assembly 3 is withdrawn from the punching machine 1, and the punching machine 1 starts to press the sheet;

After the sheet pressing is completed, the suction cup assembly 3 extends into the punching machine 1 again to grab the pressed sheet, and the same mechanical gripper 4 clamps the sheet, and then moves the sheet out of the punching machine 1, and then vertically The beam 205 moves on the gantry 2 in the direction of the lower rack 6, and the pressed sheet is placed on the lower rack 6.

The above content is only an example and description of the structure of the present invention. Those skilled in the art make various modifications or supplements to the described specific embodiments or replace them in similar ways, as long as they do not deviate from the structure of the invention. Or beyond the scope defined in the claims, all should belong to the protection scope of the present invention.

Claims (10)

1. A cantilever type automatic loading and unloading device for heat exchange plate pressing, comprising two groups of gantry frames and suction cup assemblies, the gantry frame includes a beam and column legs arranged at both ends of the beam, the upper part of the beam is provided with a first guide rail, the second A first rack is provided on one side of the guide rail, longitudinal beams are provided on the upper part of the two groups of gantry frames; first sliding seats are provided at both ends of the longitudinal beams, and a first sliding seat that is slidingly connected with the first guide rail is provided at the lower part of the first sliding seat. Slider, the upper part of the first sliding seat is provided with a first motor, the output shaft of the first motor is provided with a first gear meshed with the first rack; the lower part of the longitudinal beam is provided with a second guide rail, and the second guide rail The inner side is provided with a second rack, the second guide rail is slidably connected with a second slide block, the second slide block is connected with a second slide seat, and a second motor is provided on the second slide block. The output shaft of the output shaft is connected with a second gear meshed with the second rack; it is characterized in that a first cylinder is provided at the lower part of the second slide seat, and a suspension rod is connected to the lower end of the piston rod of the first cylinder; the suction cup assembly It includes a connecting rod, one end of the connecting rod is connected with the boom, and the other end of the connecting rod is provided with a mounting frame on both sides, the mounting frames on both sides are connected by connecting plates, and a number of suction cups are provided on both sides of the mounting frame and the connecting rod; the lower part of the gantry A loading rack is provided, and a lowering rack is provided on one side of the loading rack. 2. A cantilever type automatic loading and unloading device for heat exchange plate pressing according to claim 1, characterized in that the lower end of the suspender is hinged to the connecting rod, and there is a second hinge on both sides of the suspender. cylinder, the piston rod lower end of the second cylinder is hinged with the connecting rod. 3. A cantilever-type automatic loading and unloading device for heat exchange plate pressing according to claim 2, characterized in that lugs are provided at both ends of the upper part of the boom, and guide rods are fixedly connected to the lugs. The upper end of the rod passes through the second sliding seat, and the upper end of the guide rod is fixedly connected with the limiting end plate. 4. A cantilever type automatic loading and unloading device for heat exchange plate pressing according to claim 1, characterized in that guide grooves are provided on both sides of the mounting frame and the connecting rod, and slidingly connected in the guide grooves There is a guide block, one side of the mounting frame is provided with an L-shaped mounting plate, the suction cup is fixedly installed 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 threaded to be connected with a fixing nut; the upper part of the mounting frame Adjusting studs are provided, the two ends of the connecting plate are provided with adjusting grooves slidingly connected with the adjusting studs, and the upper part of the adjusting studs is provided with adjusting nuts. 5. A cantilever type automatic loading and unloading device for heat exchange plate pressing according to claim 1, characterized in that a mechanical gripper is provided on the upper part of the suction cup assembly, and the mechanical gripper includes a first fixed support , the first fixed support is fixedly installed on the mounting frame, the fixed bottom of the first fixed support is connected with a fixed rod, the two ends of the fixed rod are rotatably connected with the gripper body, and the lower part of the gripper body faces inwardly Bending, the upper part of the connecting rod is provided with a plurality of second fixed supports, the two sides of the second fixed supports are symmetrically hinged with a third cylinder, and the piston rod of the third cylinder is hinged with the upper part of the gripper body. 6 . A cantilever type automatic loading and unloading device for heat exchange plate pressing according to claim 1 , wherein both the loading rack and the unloading rack are scissor-type lifting platforms. 7. A cantilever-type automatic loading and unloading device for heat exchange plate pressing according to claim 1, characterized in that, one end of the upper part of the feeding rack is provided with a column, and the other end of the feeding rack is provided with a backing plate, so that The upper part of the column is hinged with a posture adjustment plate, and one end of the posture adjustment plate is provided with a limit plate, and the lower part of the posture adjustment plate is hinged with a fourth cylinder, and the lower end of the fourth cylinder is hinged with the loading rack. 8. A cantilever-type automatic loading and unloading device for heat exchange plate pressing according to claim 7, characterized in that a number of evenly distributed bull's-eye bearings are arranged on the posture adjustment plate. 9. A cantilever-type automatic loading and unloading device for heat exchange plate pressing according to claim 7, characterized in that, both sides of the pose adjustment plate are provided with stopper plates, and both sides of the pose adjustment plate are Waist-shaped grooves are provided, and the lower ends of the material baffles on both sides pass through the waist-shaped grooves and are threaded with double-ended studs, the threads of the double-ended studs rotate in opposite directions, and one end of the studs is connected with a hand wheel. 10. A cantilever type automatic loading and unloading device for heat exchange plate pressing according to any one of claims 1-9, characterized in that a base is provided at the lower part of the feeding frame, and a base is provided at the upper part of the base Several springs, the upper ends of the springs are fixedly connected with the lower ends of the feeding rack.

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