A stamping and trimming equipment for the production of steel structure back panels of display screens

Abstract

The present invention discloses a stamping and trimming device for the production of a steel structure back panel of a display screen, which belongs to the technical field of steel structure back panel processing, and comprises a workbench and a fixed frame arranged at the upper end of the workbench, the output end of the hydraulic cylinder penetrates the top surface of the fixed frame and is provided with an upper die seat, the upper end of the movable plate is fixed with a lower die seat, and two adsorption components for adsorbing workpieces are symmetrically arranged inside the lower die seat. The beneficial effects of the present invention are as follows: by setting structures such as a bending plate, a slider, a slide groove, a suction cup, a counterweight block, a first spring and a groove, during the process of the upper die seat and the lower die seat being molded together, the counterweight block is aligned with the groove, and then the workpiece and the suction cup move downward synchronously, so that the workpiece contacts the lower die seat, and prepares for the subsequent mold closing. During the demolding process of the upper die seat and the lower die seat, the counterweight block and the groove are misaligned, and then the suction cup and the workpiece are driven to move upward, which is convenient for the staff to take the workpiece away.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure back panel processing, and in particular to a stamping and trimming device for producing a steel structure back panel of a display screen. Background Art

[0002] With the continuous development of intelligent technology, home appliance displays will pay more and more attention to user experience and interactivity. Displays are also widely used in home appliances such as refrigerators and washing machines to clearly display various information. Displays on some home appliances such as microwave ovens and ovens are used to display key parameters such as time and temperature. The display consists of a back panel, a front frame, a control system and other parts. The display back panel and the display front frame work together. During the processing of the display back panel, the back panel needs to be punched and made into a display back panel of specific size specifications.

[0003] In the prior art, the stamping and trimming device generally adopts a processing method of combining a lower die base and an upper die base to stamp out the back panel of the display screen in one step. However, during the stamping operation, the processed back panel fits tightly with the upper end surface of the lower die base, and the back panel is relatively thin. The staff cannot manually lift the back panel up and can only slide the back panel against the upper die base to remove it. During the removal process, the hands are prone to slipping between the back panel, making it difficult to quickly remove the back panel, affecting production efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned technical problems and to propose a stamping and trimming device for producing a steel structure back panel of a display screen.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A stamping and trimming device for the production of a steel structure back panel of a display screen comprises a workbench and a fixed frame arranged at the upper end of the workbench, a hydraulic cylinder is arranged at the upper end of the fixed frame, an output end of the hydraulic cylinder penetrates the top surface of the fixed frame and is provided with an upper die seat, a movable plate is slidably arranged at the upper end of the workbench, a lower die seat is fixedly arranged at the upper end of the movable plate, transmission components for driving the movable plate to move that cooperate with the upper die seat are respectively arranged on both sides of the inner wall of the fixed frame, and two adsorption components for adsorbing workpieces are symmetrically arranged inside the lower die seat;

[0007] The adsorption assembly includes a mounting hole that passes through the lower mold base and a counterweight block that is slidably arranged inside the mounting hole. A fixing ring is provided on the inner wall of the mounting hole. The upper end of the counterweight block is connected to the lower end surface of the fixing ring through a first spring. A suction cup is fixedly provided on the upper end of the counterweight block. The lower end of the fixing ring movably passes through the movable plate and is rotatably embedded with a ball. A groove that matches the counterweight block is provided on the surface of the workbench.

[0008] As a further description of the above technical solution:

[0009] A cavity is provided in the middle of the counterweight block, the lower end of the suction cup is connected to the cavity, a fixed tube is provided on one side of the movable plate, one end of the fixed tube is connected to the cavity through a telescopic tube, a vent is provided at the other end of the fixed tube and a barrel is provided on the outer sliding sleeve, the inner wall of the barrel is connected to the end face of the fixed tube through a second spring, a sealing block for sealing the vent is fixedly provided on the inner wall of the barrel, and a guide block is fixedly provided on the outer side of the barrel.

[0010] As a further description of the above technical solution:

[0011] The transmission assembly includes a bending plate rotatably arranged on the inner wall of the fixed frame and a sliding groove opened on the inner side of the bending plate. A sliding block matching the sliding groove is fixedly arranged on one side of the upper mold base. A guide groove matching the guide block is opened on the surface of the bending plate. A flaring groove for the guide block to pop out is opened in the middle of the guide groove. An auxiliary part matching the guide block is provided on the upper end of the workbench.

[0012] As a further description of the above technical solution:

[0013] The auxiliary part includes a moving block slidably arranged on the upper end of the workbench and two fixed blocks symmetrically arranged on the upper end of the workbench, a first slide rail matching with the moving block is fixedly arranged on the upper end of the workbench, one side of the moving block is in sliding contact with the outer surface of the bending plate, and mounting grooves are provided on both sides of the moving block, one inner wall of one of the mounting grooves is connected to a pressure block through a connecting spring, a sliding rod is provided at one end of the pressure block, one end of the sliding rod movably penetrates into another mounting groove and is provided with a positioning block, and two positioning holes matching with the positioning block are provided on the inner wall of the fixed frame.

[0014] As a further description of the above technical solution:

[0015] The bending plate is rotatably connected to the fixing frame via a bearing, and a deflection groove matched with the bending plate is provided at the upper end of the workbench.

[0016] As a further description of the above technical solution:

[0017] An annular groove is provided at the lower end of the upper die seat, a square pressure plate is slidably provided inside the annular groove, and the square pressure plate is connected to the top surface of the annular groove through a third spring. An annular cutter is fixedly provided at the lower end of the upper die seat, and the annular cutter is located on the inner side of the square pressure plate. An annular knife groove matching the annular cutter is provided at the upper end of the lower die seat.

[0018] As a further description of the above technical solution:

[0019] The upper end of the workbench is provided with a second slide rail matched with the moving plate.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0021] In the present invention, by arranging structures such as a bending plate, a slider, a slide groove, a suction cup, a counterweight block, a first spring and a groove, during the mold closing process of the upper mold base and the lower mold base, when the upper mold base moves downward, the lower mold base is driven by the bending plate to move to just below the upper mold base, so that the counterweight block is aligned with the groove, and then the workpiece and the suction cup move downward synchronously, so that the workpiece contacts the lower mold base, preparing for subsequent mold closing. During the demolding process of the upper mold base and the lower mold base, the counterweight block and the groove will be misaligned, thereby driving the suction cup and the workpiece to move upward, making it convenient for the staff to take away the workpiece and avoiding the workpiece being stuck to the lower mold base, making it difficult for the staff to remove it.

[0022] In the present invention, by arranging the positioning block, the pressure block, the moving block, the connecting spring, the sealing block, the sleeve barrel and other structures, when the moving plate drives the workpiece to move to the bottom of the upper die seat, the vent hole is always in a blocked state, that is, the suction cup is in a negative pressure state, which effectively adsorbs the workpiece and ensures the stability of the workpiece during transportation. When the moving plate drives the workpiece to move outward, the vent hole will be opened first and then closed, so that the suction cup can release the firm adsorption of the workpiece, which is convenient for the staff to take away the processed workpiece and prepare for the subsequent placement of new workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The appearance diagram of the stamping and trimming equipment provided according to the embodiment of the present invention is shown;

[0024] Figure 2 A schematic diagram of the structure of a fixing frame, a hydraulic cylinder and an upper die base provided in an embodiment of the present invention is shown;

[0025] Figure 3 A schematic diagram of the structure of a workbench, a movable plate and a lower die base provided in an embodiment of the present invention is shown;

[0026] Figure 4 A schematic diagram of the structure of a workbench provided according to an embodiment of the present invention is shown;

[0027] Figure 5 A cross-sectional view of the lower die base structure provided according to an embodiment of the present invention is shown;

[0028] Figure 6 A schematic diagram of a partial structure of an adsorption assembly provided according to an embodiment of the present invention is shown;

[0029] Figure 7 The embodiment provided according to the present invention shows Figure 6 Schematic diagram of the structure at A in the middle;

[0030] Figure 8A cross-sectional view of the upper die seat structure provided according to an embodiment of the present invention is shown;

[0031] Fig. 9 A schematic diagram of a bent plate structure provided according to an embodiment of the present invention is shown;

[0032] Fig.10 A cross-sectional view of the auxiliary component structure provided according to an embodiment of the present invention is shown.

[0033] Legend: 1. Workbench; 2. Fixed frame; 3. Hydraulic cylinder; 4. Bending plate; 5. Upper die seat; 6. Positioning hole; 7. Slide groove; 8. Lower die seat; 9. Annular knife groove; 10. First slide rail; 11. Fixed block; 12. Moving block; 13. Second slide rail; 14. Slide rod; 15. Positioning block; 16. Connecting spring; 17. Pressure block; 18. Counterweight block; 19. Telescopic tube; 20. Bucket; 21. Suction cup; 22. Fixed ring; 23. First spring; 24. Fixed tube; 25. Moving plate; 26. Guide block; 27. Second spring; 28. Sealing block; 29. ​​Guide groove; 30. Expanding groove; 31. Square pressure plate; 32. Third spring; 33. Annular cutter; 34. Sliding block; 35. Groove; 36. Deflection groove. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figure 1-Figure 10 As shown, a stamping and trimming equipment for the production of a steel structure back panel of a display screen comprises a workbench 1 and a fixed frame 2 arranged at the upper end of the workbench 1, a hydraulic cylinder 3 is arranged at the upper end of the fixed frame 2, an output end of the hydraulic cylinder 3 penetrates through the top surface of the fixed frame 2 and is provided with an upper die seat 5, a movable plate 25 is slidably arranged at the upper end of the workbench 1, a lower die seat 8 is fixedly arranged at the upper end of the movable plate 25, transmission components for driving the movable plate 25 to move that cooperate with the upper die seat 5 are respectively arranged on both sides of the inner wall of the fixed frame 2, and two adsorption components for adsorbing workpieces are symmetrically arranged inside the lower die seat 8;

[0036] The adsorption assembly includes a mounting hole penetrating through the lower die seat 8 and a counterweight 18 slidably arranged inside the mounting hole. A fixing ring 22 is arranged on the inner wall of the mounting hole. The upper end of the counterweight 18 is connected to the lower end surface of the fixing ring 22 through a first spring 23. A suction cup 21 is fixedly arranged on the upper end of the counterweight 18. The lower end of the fixing ring 22 movably penetrates the moving plate 25 and is rotatably embedded with a ball. A groove 35 matching the counterweight 18 is arranged on the surface of the workbench 1. When in use, in the initial state (refer to the attached manual), the counterweight 18 is fixedly arranged with a suction cup 21. Figure 1 ), at this time, the movable plate 25 is at the front side of the workbench 1, the counterweight 18 and the groove 35 are in a misaligned state, the suction cup 21 protrudes above the lower die base 8, and then the workpiece to be processed can be placed on the lower die base 8 (on the suction cup 21) and pressed down, (refer to the attached manual Figure 5 ) allows the workpiece to be adsorbed on the suction cup 21, ensuring the stability of the workpiece placement and the stability of the workpiece during the subsequent movement of the moving plate 25.

[0037] Furthermore, a cavity is provided in the middle of the counterweight block 18, the lower end of the suction cup 21 is connected to the cavity, a fixed tube 24 is provided on one side of the movable plate 25, one end of the fixed tube 24 is connected to the cavity through a telescopic tube 19, a vent is provided at the other end of the fixed tube 24 and a sleeve barrel 20 is provided on the outer sliding sleeve, the inner wall of the sleeve barrel 20 is connected to the end face of the fixed tube 24 through a second spring 27, a sealing block 28 for blocking the vent is fixedly provided on the inner wall of the sleeve barrel 20, and a guide block 26 is fixedly provided on the outer side of the sleeve barrel 20. When the workpiece is adsorbed on the suction cup 21, since the vent is in a blocked state, the suction cup 21 is in a negative pressure state at this time, and the workpiece is firmly adsorbed.

[0038] Further, the transmission assembly includes a bending plate 4 rotatably arranged on the inner wall of the fixed frame 2 and a slide groove 7 provided on the inner side of the bending plate 4, a slider 34 matched with the slide groove 7 is fixedly provided on one side of the upper die seat 5, a guide groove 29 matched with the guide block 26 is provided on the surface of the bending plate 4, and a flaring groove 30 for the guide block 26 to pop out is provided in the middle of the guide groove 29, and an auxiliary part matched with the guide block 26 is provided on the upper end of the workbench 1. When in use, after the workpiece is adsorbed on the suction cup 21, the hydraulic cylinder 3 is started to drive the upper die seat 5 to move downward. During the downward movement of the upper die seat 5, under the cooperation of the slider 34 and the slide groove 7, the bending The folding plate 4 rotates. During the rotation of the bending plate 4, the movable plate 25 moves with the cooperation of the guide block 26 and the guide groove 29. The movement of the movable plate 25 drives the lower die base 8 and the adsorbed workpiece to move synchronously until the lower die base 8 is directly below the upper die base 5. When the movable plate 25 moves to align the counterweight block 18 with the groove 35, the workpiece moves downward under the action of the gravity of the counterweight block 18 and the workpiece until the workpiece contacts the upper end surface of the lower die base 8. At this time, the hydraulic cylinder 3 continues to drive the upper die base 5 to move downward, and will not drive the movable plate 25 to move, that is, the upper die base 5 and the lower die base 8 are molded.

[0039] Further, the auxiliary parts include a moving block 12 slidably arranged on the upper end of the workbench 1 and two fixed blocks 11 symmetrically arranged on the upper end of the workbench 1. A first slide rail 10 matched with the moving block 12 is fixedly arranged on the upper end of the workbench 1. One side of the moving block 12 is in sliding contact with the outer surface of the bending plate 4. Installation grooves are provided on both sides of the moving block 12. The inner wall of one of the installation grooves is connected to a pressure block 17 through a connecting spring 16. A slide rod 14 is provided at one end of the pressure block 17. One end of the slide rod 14 movably penetrates into another installation groove and is provided with a positioning block 15. Two positioning holes 6 matched with the positioning block 15 are provided on the inner wall of the fixed frame 2. After the workpiece is processed, the hydraulic cylinder 3 drives the upper die seat 5 to move upward. Under the cooperation of the slider 34 and the slide groove 7, the bending plate 4 will rotate in the opposite direction (refer to the attached figure of the instruction manual). Figure 1 , Instruction Manual Figure 2 And the instruction manual Fig.10 ), under the cooperation of the guide block 26 and the guide groove 29, the movement of the movable plate 25 drives the lower die base 8 and the adsorbed workpiece to move synchronously in the opposite direction. When the guide block 26 slides to the flaring groove 30, under the reset action of the second spring 27, the sleeve barrel 20 and the guide block 26 are ejected outward, that is, the sealing block 28 is separated from the vent hole. At this time, air enters the suction cup 21, and the suction cup 21 releases the adsorption of the workpiece. As the bending plate 4 continues to rotate in the opposite direction, the guide block 26 will slide into the guide groove 29 again, that is, the vent hole is blocked by the sealing block 28, and when the movable plate 25 moves in the opposite direction, the counterweight block 18 and the groove 35 will gradually be misaligned, so that the suction cup 21 is ejected upward, which is convenient for the staff to take away the processed workpiece and prepare for the subsequent placement of new workpieces;

[0040] When the bending plate 4 rotates in the reverse direction, the side of the bending plate 4 will first contact the surface of the pressure block 17 and drive the moving block 12 to slide, that is, the moving block 12 moves from one fixed block 11 to the other fixed block 11. When the moving block 12 abuts against the other fixed block 11, the bending plate 4 continues to deflect and will not drive the moving block 12 to move. Then the bending plate 4 continues to deflect and squeeze the pressure block 17, so that the connecting spring 16 is compressed, and at the same time, the positioning block 15 is stuck in the positioning hole 6, so that the pressure block 17 releases the obstruction to the deflection of the bending plate 4, and then the bending plate 4 continues to deflect and move to the other side of the pressure block 17. When the bending plate 4 rotates forward again, it will make the bending plate 4 contact with the pressure block 17 again. At this time, the surface of the moving block 12 is in contact with the surface of the bending plate 4 When the movable plate 25 drives the workpiece to move below the upper die seat 5, the vent is always in a blocked state, that is, the suction cup 21 is in a negative pressure state, which effectively adsorbs the workpiece and ensures the stability of the workpiece during transportation. When the movable plate 25 drives the workpiece to move outward, the vent is opened and then closed, so that the suction cup 21 releases the firm adsorption of the workpiece, which is convenient for the staff to take away the processed workpiece and prepare for the subsequent placement of new workpieces.

[0041] Furthermore, the bending plate 4 is rotatably connected to the fixing frame 2 via a bearing, and a deflection groove 36 matching with the bending plate 4 is provided at the upper end of the workbench 1, thereby ensuring the stability of the rotation of the bending plate 4.

[0042] Furthermore, an annular groove is provided at the lower end of the upper die base 5, and a square pressure plate 31 is slidably provided inside the annular groove. The square pressure plate 31 is connected to the top surface of the annular groove through a third spring 32. An annular cutter 33 is fixedly provided at the lower end of the upper die base 5. The annular cutter 33 is located on the inner side of the square pressure plate 31. An annular knife groove 9 matching the annular cutter 33 is provided at the upper end of the lower die base 8. When the upper die base 5 and the lower die base 8 are closed, the square pressure plate 31 will first press on the upper end of the workpiece, and then as the upper die base 5 moves downward further, the annular cutter 33 will trim the workpiece.

[0043] Furthermore, a second slide rail 13 matching with the moving plate 25 is provided at the upper end of the workbench 1 , thereby ensuring the stability of the horizontal movement of the moving plate 25 .

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stamping and trimming device for producing a steel structure back panel of a display screen, comprising a workbench (1) and a fixing frame (2) arranged at the upper end of the workbench (1), wherein a hydraulic cylinder (3) is arranged at the upper end of the fixing frame (2), and an output end of the hydraulic cylinder (3) passes through the top surface of the fixing frame (2) and is provided with an upper die seat (5), characterized in that: A movable plate (25) is slidably provided on the upper end of the workbench (1), a lower die seat (8) is fixedly provided on the upper end of the movable plate (25), transmission components for cooperating with the upper die seat (5) and for driving the movable plate (25) to move are respectively provided on both sides of the inner wall of the fixed frame (2), and two adsorption components for adsorbing workpieces are symmetrically provided inside the lower die seat (8); The adsorption assembly comprises a mounting hole extending through the lower die base (8) and a counterweight (18) slidably arranged inside the mounting hole, a fixing ring (22) is arranged on the inner wall of the mounting hole, the upper end of the counterweight (18) is connected to the lower end surface of the fixing ring (22) via a first spring (23), a suction cup (21) is fixedly arranged on the upper end of the counterweight (18), a ball bearing is rotatably embedded in the lower end of the fixing ring (22) which movably passes through the movable plate (25), and a groove (35) matching the counterweight (18) is arranged on the surface of the workbench (1); A cavity is provided in the middle of the counterweight block (18), the lower end of the suction cup (21) is connected to the cavity, a fixed tube (24) is provided on one side of the movable plate (25), one end of the fixed tube (24) is connected to the cavity via a telescopic tube (19), a vent hole is provided at the other end of the fixed tube (24) and a sleeve barrel (20) is slidably sleeved on the outside, the inner wall of the sleeve barrel (20) is connected to the end surface of the fixed tube (24) via a second spring (27), a sealing block (28) for blocking the vent hole is fixedly provided on the inner wall of the sleeve barrel (20), and a guide block (26) is fixedly provided on the outside of the sleeve barrel (20); The transmission assembly comprises a bending plate (4) rotatably arranged on the inner wall of the fixed frame (2) and a slide groove (7) provided on the inner side of the bending plate (4); a sliding block (34) matching with the slide groove (7) is fixedly provided on one side of the upper die seat (5); a guide groove (29) matching with the guide block (26) is provided on the surface of the bending plate (4); a flaring groove (30) for the guide block (26) to pop out is provided in the middle of the guide groove (29); and an auxiliary part matching with the guide block (26) is provided on the upper end of the workbench (1).

2. The punching and trimming equipment for producing the steel structure back panel of a display screen according to claim 1 is characterized in that: The auxiliary component comprises a moving block (12) slidably arranged on the upper end of the workbench (1) and two fixed blocks (11) symmetrically arranged on the upper end of the workbench (1); a first slide rail (10) matched with the moving block (12) is fixedly arranged on the upper end of the workbench (1); one side of the moving block (12) is in sliding contact with the outer surface of the bending plate (4); installation grooves are provided on both sides of the moving block (12); an inner wall of one of the installation grooves is connected to a pressure block (17) via a connecting spring (16); a sliding rod (14) is provided at one end of the pressure block (17); one end of the sliding rod (14) is movably inserted into another installation groove and provided with a positioning block (15); and two positioning holes (6) matched with the positioning blocks (15) are provided on the inner wall of the fixed frame (2).

3. The punching and trimming equipment for producing the steel structure back panel of a display screen according to claim 1 is characterized in that: The bending plate (4) is rotatably connected to the fixing frame (2) via a bearing, and a deflection groove (36) matching with the bending plate (4) is provided at the upper end of the workbench (1).

4. The punching and trimming equipment for producing the steel structure back panel of a display screen according to claim 1 is characterized in that: An annular groove is provided at the lower end of the upper die seat (5), a square pressing plate (31) is slidably provided inside the annular groove, the square pressing plate (31) is connected to the inner top surface of the annular groove via a third spring (32), an annular cutter (33) is fixedly provided at the lower end of the upper die seat (5), the annular cutter (33) is located inside the square pressing plate (31), and an annular knife groove (9) matching the annular cutter (33) is provided at the upper end of the lower die seat (8).

5. The punching and trimming equipment for producing the steel structure back panel of a display screen according to claim 1 is characterized in that: The upper end of the workbench (1) is provided with a second slide rail (13) which matches the movable plate (25).

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