A laser cutting device for producing U-shaped refrigerator shells

Abstract

The present invention discloses a laser cutting device for producing U-shaped shells of refrigerators, comprising a frame and a lifting frame provided on the frame; the transmission assembly also comprises a transmission assembly, the transmission assembly is transmission-connected to a support frame, a sliding block is slidingly provided inside the support frame, the sliding block is transmission-connected to a linkage assembly and a fastening assembly, the two sliding blocks are separated toward both ends along the support frame during the downward movement of the lifting frame, so that a movable plate transmission-connected by the linkage assembly shrinks and exposes a cutting frame provided at the bottom of the movable plate, and at the same time, the fastening assembly tightens the plate adsorbed at the bottom; in the present invention, the lifting frame drives the laser cutting equipment to move during the movement stroke, so that the support frame and the fastening assembly move downward and limit and adsorb and fasten the plate on the frame, and the cutting frame is exposed through the linkage assembly, which is convenient for the laser cutting equipment to cut the plate, and the fastening assembly adsorbs and tightens the plate through the linkage assembly, thereby improving the flatness of the plate cutting and avoiding affecting the cutting accuracy due to the flatness of the plate.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting equipment, and in particular to a laser cutting equipment for producing a U-shaped shell of a refrigerator. Background Art

[0002] Refrigerator shell processing usually adopts sheet metal forming technology. First, the cold-rolled steel plate or galvanized plate is cut through a shearing machine, stretched into a box frame by a stamping machine, and then the side panel contour is accurately bent by a bending machine. The surface treatment includes phosphating, spraying or laminating processes, and an electrostatic powder spraying process is used to form a uniform corrosion-resistant coating. Some high-end models will use stainless steel plates and use laser cutting to ensure the accuracy of the seams. The bending R angle and welding deformation must be strictly controlled during the processing to ensure the sealing and assembly dimensions of the box. Finally, the door hinges and foam layer fixing points are assembled on the assembly line to complete the shell assembly with both structural strength and aesthetics.

[0003] For example, the patent with publication number CN218695057U, titled "A Cutting Equipment for Stainless Steel Plate Production", with authorization announcement date of 20230324, includes a cutting machine body, a laser cutting assembly is movably provided on the upper portion of the cutting machine body, a mounting slot is provided on the upper end portion of the cutting machine body, a rotating shaft slot is provided on the left and right inner walls of the mounting slot, and at least two triangular support frames are installed inside the mounting slot. The utility model allows the stainless steel plate to fall downward onto the lower collecting plate. Since the lower collecting plate and the triangular support frames are at an oblique angle, the stainless steel plate will slide along the lower collecting plate to the front section of the cutting machine body. By supporting the stainless steel plate with multiple triangular support frames, it is possible to support stainless steel plates of different sizes, and at the same time, the cut stainless steel plate will fall onto the lower collecting plate, which will collect the stainless steel plate, effectively playing a collecting role and facilitating the unified processing of waste plates in the later stage.

[0004] The shortcoming of the existing technology is that since the stainless steel plates are cut and bent into an integrated refrigerator shell structure, the stainless steel plates are flatly clamped and fixed by a hydraulic device during the cutting process. However, the hydraulic device clamps at the edge of the plate. When the laser cutting position is centered, the plate cannot be clamped and tightened locally, resulting in a loose image during the laser cutting process, affecting the accuracy of the plate cutting. Summary of the Invention

[0005] The purpose of the present invention is to provide a laser cutting device for the production of U-shaped shells of refrigerators. The lifting frame drives the laser cutting device to move during its movement, so that the support frame and the fastening assembly move downward and limit the plate on the frame and adsorb and fasten it. The cutting frame is exposed through the linkage assembly, which facilitates the laser cutting equipment to cut the plate, and the fastening assembly adsorbs and tightens the plate through the linkage assembly, thereby improving the flatness of the plate cutting and avoiding affecting the cutting accuracy due to the flatness of the plate.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a laser cutting device for the production of U-shaped shells of refrigerators, comprising a frame and a lifting frame provided on the frame; further comprising a transmission assembly, wherein the transmission assembly is transmission-connected to a support frame, a sliding block is provided for sliding inside the support frame, and the sliding block is transmission-connected to a linkage assembly and a fastening assembly, wherein the two sliding blocks are separated toward both ends along the support frame during the downward movement of the lifting frame, so that the movable plate transmission-connected by the linkage assembly contracts and exposes the cutting frame provided at the bottom of the movable plate, and at the same time, the fastening assembly tightens the plate adsorbed at the bottom; the fastening assembly comprises a connecting strip, a plurality of adsorption parts are provided at the top of the connecting strip, and the plurality of adsorption parts are connected by a conduit, and a pump body is provided at one end of the adsorption part and is connected through a connecting pipe; the pump body is driven to move by the sliding block so that the adsorption part adsorbs and fastens the plate;

[0007] As a further description of the above technical solution:

[0008] A sliding rod is provided in the sliding block, and the bottom end of the sliding rod is fixedly connected to a support plate through a support leg. The sliding rod is symmetrically fixedly connected to a limit bar, and a connecting bar is movably provided at the top of the limit bar. A reset spring fixed at one end of the connecting bar is used to reset the adsorption part.

[0009] As a further description of the above technical solution:

[0010] A groove is provided at one end of the sliding block, and a movable bar is slidably provided in the groove. An abutment bar is fixedly connected to one end of the movable bar, and its end abuts against the outer wall of the sliding rod. A spring member is fixedly connected to the other end of the movable bar, and the abutment bar fixed to the movable bar is elastically supported by the spring member to fit the sliding rod. A locking block is fixedly connected to the end of the movable bar away from the sliding block, and the locking block is adapted to the linkage member.

[0011] As a further description of the above technical solution:

[0012] It also includes a connecting piece, and the connecting piece transmits the connecting assembly through the sliding block. The connecting piece includes a connecting rod, one end of the connecting rod is fixedly connected to a movable sleeve, the movable sleeve is slidably arranged on the sliding rod, and the other end of the connecting rod is fixedly connected to a sleeve shaft.

[0013] As a further description of the above technical solution:

[0014] The transmission assembly includes a slider, and the slider is arranged on the lifting frame. A support rod is provided through the slider, and the end of the support rod is transmission-connected to a support arm. A rotating shaft block is provided at the bottom end of the support arm, and the rotating shaft block is arranged on the sliding block.

[0015] As a further description of the above technical solution:

[0016] The adsorption component includes a guide cover, a branch pipe is fixedly connected inside the guide cover, a suction cup of the adsorption plate is fixedly connected to the bottom of the branch pipe, a through slot pipe is opened at the top of the branch pipe, a partition is passed through the top of the through slot pipe, a blocking block for opening and closing the through slot pipe is provided in the partition, and limiting columns passing through the partition are fixedly connected to both ends of the blocking block.

[0017] As a further description of the above technical solution:

[0018] The pump body comprises a piston cylinder, in which a piston block is movably provided, a pull rod penetrating the piston cylinder is provided at one end of the piston block, a positioning rod is movably provided at the end of the pull rod, and the positioning rod is fixedly connected to the movable block.

[0019] As a further description of the above technical solution:

[0020] A movable frame is movably provided in the frame, connecting arms are symmetrically provided at both ends of the movable frame, a lower pressing block is fixedly connected to the top of the connecting arm, a directional rod is provided at the bottom end of the connecting arm, and a spring member 3 is provided on the directional rod sleeve.

[0021] As a further description of the above technical solution:

[0022] The linkage assembly includes a resisting roller, and connecting shafts are symmetrically provided at both ends of the resisting roller. The connecting shaft passes through the sleeve shaft and is provided with a fixed block. The top of the fixed block is fixedly connected to a support rod, and the end of the support rod away from the fixed block is fixedly connected to a U-shaped frame. A resisting wheel is movably provided in the U-shaped frame, and a guide frame is fitted on one end of the resisting wheel, and the guide frame is fixed on the frame.

[0023] As a further description of the above technical solution:

[0024] One end of the U-shaped frame is fixedly connected to a support spring sleeved on the outside of the support rod, and the support spring elastically supports the sliding sleeve on the sliding support rod. One end of the sliding sleeve is fixedly connected to a sliding bar, and one end of the sliding bar is slidably connected to a limiting rod. One end of the limiting rod is fixedly connected to a support arm, and the support arm is fixed on the connecting bar.

[0025] The present invention provides a laser cutting device for producing U-shaped refrigerator shells, which has the following beneficial effects:

[0026] In the present invention, the laser cutting equipment is driven to move during its travel by the lifting frame, so that the support frame and the fastening assembly move downward and limit the plate on the frame and are adsorbed and fastened, and the cutting frame is exposed through the linkage assembly, which facilitates the laser cutting equipment to cut the plate, and the fastening assembly adsorbs and tightens the plate through the linkage assembly, thereby improving the flatness of the plate cutting and avoiding affecting the cutting accuracy due to the flatness of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1This is a schematic structural diagram of a laser cutting device for producing a U-shaped shell of a refrigerator proposed in the present invention;

[0028] Figure 2 Schematic diagram of the structure of the linkage assembly in the present invention;

[0029] Figure 3 For the present invention Figure 1 Schematic diagram of the local structure at A in the middle;

[0030] Figure 4 It is a structural schematic diagram of the transmission assembly in the present invention;

[0031] Figure 5 Schematic diagram of the structure of the support frame in the present invention;

[0032] Figure 6 For the present invention Figure 5 Schematic diagram of the local structure at B in the middle;

[0033] Figure 7 Schematic diagram of the structure of the connecting strip in the present invention;

[0034] Figure 8 Schematic diagram of the structure of the adsorption element in the present invention;

[0035] Figure 9 For the present invention Figure 8 Schematic diagram of the local structure at C in the middle;

[0036] Figure 10 It is a structural schematic diagram of the rack in the present invention;

[0037] Figure 11 For the present invention Figure 10 Schematic diagram of the local structure at point D in the middle.

[0038] Legend: 1. Frame; 11. Cutting frame; 12. Moving plate; 13. Connecting arm; 14. Pressing block; 15. Orienting rod; 16. Spring component 3; 17. Guide frame; 2. Lifting frame; 3. Transmission assembly; 31. Slider; 32. Support rod; 33. Support arm; 34. Rotating shaft block; 4. Support frame; 41. Abutment plate; 42. Sliding rod; 421. Guide rod; 43. Linking member; 431. Connecting rod; 432. Movable sleeve; 433. Sleeve shaft; 44. Sliding block; 441. Groove; 442. Movable bar; 443. Spring component 1; 444. Abutment bar; 445. Locking block; 45. Limiting bar; 451. Return spring; 5. Fastening assembly Parts; 51. Connecting strip; 511. Support arm; 512. Limiting rod; 513. Sliding bar; 514. Sliding sleeve; 52. Adsorption part; 521. Air guide cover; 522. Suction cup; 523. Branch pipe; 5231. Through-slot pipe; 524. Partition; 5241. Limiting column; 5242. Blocking block; 525. Spring part 2; 53. Conduit; 54. Connecting pipe; 55. Pump body; 551. Piston cylinder; 552. Pull rod; 553. Piston block; 554. Positioning rod; 6. Linking assembly; 61. Anti-roller; 62. Connecting shaft; 63. Telescopic rod; 64. Fixed block; 65. Support rod; 66. Support spring; 67. U-shaped frame; 68. Anti-contact wheel. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] Reference Figure 1-11 , a laser cutting device for the production of U-shaped shells of refrigerators, comprising a frame 1 and a lifting frame 2 provided on the frame 1; further comprising a transmission assembly 3, the transmission assembly 3 is transmission-connected to a support frame 4, a sliding block 44 is slidingly provided in the support frame 4, the sliding block 44 is transmission-connected to a linkage assembly 6 and a fastening assembly 5, the two sliding blocks 44 are separated toward both ends along the support frame 4 during the downward movement of the lifting frame 2, so that the movable plate 12 transmission-connected by the linkage assembly 6 is retracted and exposed to the cutting frame 11 provided at the bottom of the movable plate 12, at the same time, the fastening assembly 5 tightens the plate adsorbed at the bottom; the fastening assembly 5 comprises a connecting strip 51, a plurality of adsorption members 52 are provided at the top of the connecting strip 51, the plurality of adsorption members 52 are connected by a conduit 53, a pump body 55 is provided at one end of the adsorption member 52 and is connected through a connecting pipe 54; the pump body 55 is driven by the sliding block 44 to move so that the adsorption member 52 adsorbs and fastens the plate;

[0041] Specifically, the frame 1 is a rectangular frame structure, and a conveyor belt for conveying plates is provided inside the frame 1. The conveyor belt conveys the plates to the position directly below the lifting frame 2. The lifting frame 2 is fixed with a laser cutting device. When the lifting frame 2 drives the laser cutting device to move downward, the transmission component 3 movably connected at the top of the lifting frame 2 drives the support frame 4 and the fastening component 5 to move downward, so that the support frame 4 supports and limits the plates placed on the frame 1. The adsorption component 52 in the fastening component 5 contacts the surface of the plates and moves toward both ends along the support frame 4 driven by the sliding block 44 in the bracket under the drive of the transmission component 3. The sliding block 44 drives the pump body 55 to operate, so that the pump body 55 adsorbs and fastens the plates through the adsorption component 52 connected to the connecting pipe 54, and the sliding block 44 further moves During the movement, the linkage assembly 6 is driven to move. The linkage assembly 6 is pushed by the sliding block 44 to fit with the movable plate 12, so that the movable plate 12 is squeezed and moves downward. The cutting frame 11 fixed on the frame 1 at the bottom of the movable plate 12 extends out, which is convenient for the laser cutting equipment to cut the plate. The device drives the laser cutting equipment to move during the movement of the lifting frame 2, so that the support frame 4 and the fastening assembly 5 move down and limit the plate on the frame 1 and adsorb and fasten them, and the cutting frame 11 is exposed through the linkage assembly 6, which is convenient for the laser cutting equipment to cut the plate, and the fastening assembly 5 adsorbs and tightens the plate through the linkage assembly 6, thereby improving the flatness of the plate cutting and avoiding affecting the cutting accuracy due to the flatness of the plate.

[0042] A slide bar 42 is provided inside the slide block 44. The bottom end of the slide bar 42 is fixedly connected to a support plate 41 via a support leg. The slide bar 42 is symmetrically fixedly connected to a limit bar 45. A connecting bar 51 is movably provided at the top of the limit bar 45. A reset spring 451 fixed to one end of the connecting bar 51 is used to reset the adsorption member 52.

[0043] A groove 441 is formed at one end of the sliding block 44, and a movable bar 442 is slidably provided in the groove 441. An abutting bar 444 is fixedly connected to one end of the movable bar 442, and its end abuts against the outer wall of the sliding rod 42. A spring member 443 is fixedly connected to the other end of the movable bar 442. The abutting bar 444 to which the movable bar 442 is fixed is elastically supported by the spring member 443 to fit the sliding rod 42. A locking block 445 is fixedly connected to the end of the movable bar 442 away from the sliding block 44, and the locking block 445 is adapted to the linkage 43.

[0044] The linkage 43 is further provided, and the linkage 43 drives the linkage assembly 6 through the sliding block 44. The linkage 43 includes a connecting rod 431, one end of which is fixedly connected to a movable sleeve 432, which is slidably arranged on the sliding rod 42, and the other end of the connecting rod 431 is fixedly connected to a sleeve shaft 433;

[0045] Specifically, a sliding block 44 is slidably connected to the sliding rod 42, and the two sliding rods 42 are fixed to the support feet at both ends of the abutment plate 41 in an upper and lower aligned structure. The sliding rod 42 located on the upper part of the support foot is fixedly connected to a guide rod 421, and the guide rod 421 is adapted to the locking block 445 provided in the sliding block 44. When the sliding block 44 moves along the sliding rod 42 under the push of the transmission assembly 3, the movable bar 442 in the groove 441 opened in the sliding block 44 will fit the abutment bar 444 fixed at one end of the movable bar 442 on the outer wall of the sliding rod 42 under the action of the spring member 443. When the sliding block 44 moves to the guide rod 421, the spring member 443 elastically pushes the locking block 445 fixedly connected to the movable bar 442 to engage the linking piece 43, and drives the linking piece 43 through the sliding block 44. The linkage assembly 6 connected to the moving part 43 moves. After the plate is cut, the lifting frame 2 drives the sliding block 44 to reset during the upward stroke. The sliding block 44 drives the clamped linkage 43 through the locking block 445. The movable sleeve 432 in the linkage 43 is adapted to the locking block 445. The linkage 43 is fixedly connected to the sleeve shaft 433 through the connecting rod 431, and the linkage assembly 6 connected by the sleeve shaft 433 moves, so that the movable plate 12 abutted by the linkage assembly 6 resets and moves. The movable plate 12 resets the cut piece to the plate cutting position after cutting and brings it out through the conveyor belt, thereby improving the convenience of discharging the cut piece. At the same time, the sliding block 44 drives the pump body 55 to move, so that the adsorption member 52 connected to the pump body 55 loosens the plate, so that the adsorption and fastening of the plate is more flexible.

[0046] The transmission assembly 3 includes a slider 31, and the slider 31 is arranged on the lifting frame 2. A support rod 32 is provided through the slider 31. The end of the support rod 32 is connected to a support arm 33. The bottom end of the support arm 33 is provided with a rotating shaft block 34, and the rotating shaft block 34 is arranged on the sliding block 44.

[0047] The adsorption member 52 includes a flow deflector 521, a branch pipe 523 fixedly connected to the flow deflector 521, a suction cup 522 of the adsorption plate fixedly connected to the bottom of the branch pipe 523, a through-slot pipe 5231 formed at the top of the branch pipe 523, a partition 524 passing through the top of the through-slot pipe 5231, a blocking block 5242 for opening and closing the through-slot pipe 5231 is provided in the partition 524, and limiting posts 5241 passing through the partition 524 are fixedly connected at both ends of the blocking block 5242;

[0048] The pump body 55 includes a piston cylinder 551, in which a piston block 553 is movably installed. A pull rod 552 is provided at one end of the piston block 553 and passes through the piston cylinder 551. A positioning rod 554 is movably provided at the end of the pull rod 552. The positioning rod 554 is fixedly connected to the movable block.

[0049] When the suction cup 522 is pressed against the plate, the spring 525 sleeved on the outside of the branch pipe 523 accumulates energy and contracts, and the through-slot tube 5231 provided at the top of the branch pipe 523 is pushed into the notch provided on the partition plate 524, so that the blocking block 5242 for limiting the notch in the partition plate 524 is driven by the branch pipe 523 to open the notch through the limiting column 5241, so that the flow guide 521 is connected to the pump body 55 through the connecting pipe 54. When the piston block 553 in the pump body 55 moves along the piston cylinder 551 driven by the pull rod 552, the piston draws out the gas in the suction cup 522, so that the suction cup 522 can adsorb and fasten the plate.

[0050] A movable frame is provided in the frame 1, and connecting arms 13 are symmetrically provided at both ends of the movable frame. A lower pressing block 14 is fixedly connected to the top of the connecting arm 13, and a directional rod 15 is provided at the bottom end of the connecting arm 13. The directional rod 15 is provided with a spring member 16;

[0051] The linkage assembly 6 includes a roller 61, with connecting shafts 62 symmetrically provided at both ends of the roller 61. The connecting shaft 62 passes through the sleeve shaft 433 and is provided with a fixed block 64. A support rod 65 is fixedly connected to the top of the fixed block 64. The end of the support rod 65 away from the fixed block 64 is fixedly connected to a U-shaped frame 67. A contact wheel 68 is movably provided in the U-shaped frame 67. One end of the contact wheel 68 is fitted with a guide frame 17, and the guide frame 17 is fixed to the frame 1.

[0052] A support spring 66 is fixedly connected to one end of the U-shaped frame 67 and is sleeved on the outside of the support rod 65. The support spring 66 elastically supports the sliding sleeve 514 on the sliding support rod 65. A sliding bar 513 is fixedly connected to one end of the sliding sleeve 514. One end of the sliding bar 513 is slidably connected to the limit rod 512. One end of the limit rod 512 is fixedly connected to the support arm 511, and the support arm 511 is fixed to the connecting bar 51.

[0053] Specifically, both ends of the roller 61 in the linkage assembly 6 are connected to the sleeve shaft 433 in the linkage 43 through the connecting shaft 62, and the roller 61 is driven by the sliding block 44 to be transmitted to the guide frame 17. The guide frame 17 limits the movement of the roller 61, so that the roller 61 is pressed against the lower pressure block 14 fixedly connected to the movable plate 12, so that the directional rod 15 of the lower pressure block 14 moves, and the spring member 16 arranged on the outer surface of the directional rod 15 stores force, so that the movable plate 12 moves downward to expose the cutting frame 11. At the same time, one end of the connecting shaft 62 is connected to the fixed block 64 through the telescopic rod 63, which is fixed. The U-shaped frame 67 fixedly connected to one end of the block 64 moves synchronously, so that the friction wheel 68 rotatably connected in the U-shaped frame 67 moves along the guide frame 17. The joint between the guide frame 17 and the friction wheel 68 is a trapezoidal structure, so that the support spring 66 fixedly connected to one end of the U-shaped frame 67 is pressed against the sliding sleeve 514 under force. The sliding sleeve 514 drives the connecting bar 51 to move under force through the telescopic structure composed of the limit rod 512 and the sliding bar 513, thereby realizing the directional movement of the adsorption part 52 adsorbed on the plate, so that the adsorption part 52 can tighten the adsorbed plate and improve the flatness of the cut part of the plate.

[0054] Working principle: a conveyor belt for conveying plates is provided in the frame 1, and the conveyor belt conveys the plates to the position directly below the lifting frame 2. The lifting frame 2 is fixed with a laser cutting device. When the lifting frame 2 drives the laser cutting device to move downward, the transmission component 3 movably connected at the top of the lifting frame 2 drives the support frame 4 and the fastening component 5 to move downward, so that the support frame 4 supports and limits the plates placed on the frame 1. The adsorption component 52 in the fastening component 5 contacts the surface of the plates, and is driven by the transmission component 3 through the sliding block 44 in the bracket to move toward both ends along the support frame 4. The sliding block 44 drives the pump body 55 to operate, so that the pump body 55 can move the plates through the adsorption component 52 connected to the connecting pipe 54. The suction and fastening are performed. When the suction cup 522 is pressed against the plate, the spring member 525 sleeved on the outside of the branch pipe 523 accumulates energy and contracts. The through-slot tube 5231 provided at the top of the branch pipe 523 is pushed into the notch provided in the partition plate 524. The blocking block 5242 used to define the notch in the partition plate 524 is driven by the branch pipe 523 to open the notch through the limiting column 5241, thereby facilitating the connection between the shroud 521 and the pump body 55 through the connecting pipe 54. When the piston block 553 in the pump body 55 moves along the piston cylinder 551 driven by the pull rod 552, the piston draws out the gas in the suction cup 522, thereby achieving the suction and fastening of the plate by the suction cup 522.The sliding block 44 drives the linkage assembly 6 to move during the further movement of the sliding block 44. The linkage assembly 6 is pressed against the movable plate 12 by the sliding block 44, so that the movable plate 12 moves downward under the extrusion force. The cutting frame 11 fixed on the frame 1 at the bottom of the movable plate 12 extends out, which is convenient for the laser cutting equipment to cut the plate. The sliding block 44 drives the roller 61 to be transmitted to the guide frame 17. The guide frame 17 limits the movement of the roller 61, so that the roller 61 is pressed against the lower pressing block 14 fixedly connected to the movable plate 12, so that the lower pressing block 14 is oriented on the rod 1. 5 movement, the spring member 3 16 arranged on the outer surface of the directional rod 15 accumulates force, causing the movable plate 12 to move downward to expose the cutting frame 11. At the same time, one end of the connecting shaft 62 is connected to the fixed block 64 through the telescopic rod 63, and the U-shaped frame 67 fixedly connected to one end of the fixed block 64 moves synchronously, causing the friction wheel 68 connected in rotation in the U-shaped frame 67 to move along the guide frame 17. The contact portion between the guide frame 17 and the friction wheel 68 forms a trapezoidal structure, so that the support spring 66 fixedly connected to one end of the U-shaped frame 67 presses against the sliding sleeve 514 to be stressed, and the sliding sleeve 514 is moved by the limit rod 512 and the slide bar 5 The telescopic structure composed of 13 drives the connecting strip 51 to move under force, so as to realize the directional movement of the adsorption member 52 adsorbed on the plate, so that the adsorption member 52 can tighten the adsorbed plate. In addition, the movable strip 442 in the groove 441 opened in the sliding block 44 fits the abutment strip 444 fixed at one end of the movable strip 442 to the outer wall of the sliding rod 42 under the action of the spring member 1 443. When the sliding block 44 moves to the guide rod 421, the spring member 1 443 elastically pushes the locking block 445 fixed to the movable strip 442 to engage the linking member 43, and through the sliding block 44 This drives the linkage assembly 6 connected to the linkage member 43. After the panel is cut, the lifting frame 2 moves the sliding block 44 during its upward stroke to return. The sliding block 44 drives the clamped linkage member 43 through the locking block 445. The movable sleeve 432 in the linkage member 43 is adapted to the locking block 445. The linkage member 43 is fixedly connected to the sleeve shaft 433 via the connecting rod 431, and the linkage assembly 6 connected by the sleeve shaft 433 moves, causing the movable plate 12 abutting the linkage assembly 6 to return to its original position. The movable plate 12 returns the cut piece to the cutting position and carries it out via the conveyor belt.

[0055] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A laser cutting device for producing U-shaped shells of refrigerators, characterized in that: It includes a frame and a lifting frame provided on the frame; The utility model also comprises a transmission component, wherein the transmission component is transmission-connected to the support frame, a sliding block is slidingly provided in the support frame, and the sliding block is transmission-connected to the linkage component and the fastening component. The two sliding blocks are separated toward both ends along the support frame during the downward movement of the lifting frame, so that the movable plate transmission-connected to the linkage component is retracted and the cutting frame provided at the bottom of the movable plate is exposed. At the same time, the fastening component tightens the plate adsorbed at the bottom. The transmission assembly includes a slider, and the slider is arranged on the lifting frame, a support rod is provided through the slider, the end of the support rod is connected to the support arm, the bottom end of the support arm is provided with a shaft block, and the shaft block is provided on the sliding block; The linkage assembly includes a resistance roller, two ends of the resistance roller are symmetrically provided with connecting shafts, the connecting shaft passes through the sleeve shaft and is provided with a fixed block, the top of the fixed block is fixedly connected to a support rod, and one end of the support rod away from the fixed block is fixedly connected to a U-shaped frame, a resistance wheel is movably provided in the U-shaped frame, one end of the resistance wheel is fitted with a guide frame, and the guide frame is fixed to the frame, one end of the U-shaped frame is fixedly connected to a supporting spring sleeved on the outside of the support rod, the supporting spring elastically supports the sliding sleeve sliding on the support rod, one end of the sliding sleeve is fixedly connected to a sliding bar, one end of the sliding bar is slidably connected to a limiting rod, one end of the limiting rod is fixedly connected to a support arm, and the support arm is fixed to the connecting bar; The fastening assembly includes a connecting strip, a plurality of adsorption members are provided at the top of the connecting strip, the plurality of adsorption members are connected to each other through a conduit, a pump body is provided at one end of the adsorption member and is connected through a connecting pipe; the pump body is driven to move by a sliding block so that the adsorption member adsorbs and fastens the plate; The adsorption component includes a guide cover, a branch pipe is fixedly connected to the guide cover, a suction cup of the adsorption plate is fixedly connected to the bottom of the branch pipe, a through-slot pipe is opened at the top of the branch pipe, a partition plate passes through the top of the through-slot pipe, a blocking block for opening and closing the through-slot pipe is provided in the partition plate, and limiting columns passing through the partition plate are fixedly connected to both ends of the blocking block; It also includes a connecting piece, and the connecting piece transmits the connecting assembly through the sliding block. The connecting piece includes a connecting rod, one end of the connecting rod is fixedly connected to a movable sleeve, the movable sleeve is slidably arranged on the sliding rod, and the other end of the connecting rod is fixedly connected to a sleeve shaft.

2. The laser cutting equipment for producing U-shaped shells of refrigerators according to claim 1, characterized in that: A sliding rod is provided in the sliding block, and the bottom end of the sliding rod is fixedly connected to a support plate through a support leg. The sliding rod is symmetrically fixedly connected to a limit bar, and a connecting bar is movably provided at the top of the limit bar. A reset spring fixed at one end of the connecting bar is used to reset the adsorption part.

3. The laser cutting equipment for producing refrigerator U-shaped shells according to claim 1, characterized in that: A groove is provided at one end of the sliding block, and a movable bar is slidably provided in the groove. An abutment bar is fixedly connected to one end of the movable bar, and its end abuts against the outer wall of the sliding rod. A spring member is fixedly connected to the other end of the movable bar, and the abutment bar fixed to the movable bar is elastically supported by the spring member to fit the sliding rod. A locking block is fixedly connected to the end of the movable bar away from the sliding block, and the locking block is adapted to the linkage member.

4. The laser cutting equipment for producing refrigerator U-shaped shells according to claim 1, characterized in that: The pump body comprises a piston cylinder, in which a piston block is movably provided, a pull rod penetrating the piston cylinder is provided at one end of the piston block, a positioning rod is movably provided at the end of the pull rod, and the positioning rod is fixedly connected to the sliding block.

5. The laser cutting equipment for producing refrigerator U-shaped shells according to claim 1, characterized in that: A movable frame is movably provided in the frame, connecting arms are symmetrically provided at both ends of the movable frame, a lower pressing block is fixedly connected to the top of the connecting arm, a directional rod is provided at the bottom end of the connecting arm, and a spring member 3 is provided on the directional rod sleeve.

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