Stamping device convenient to demould

Abstract

The utility model belongs to the technical field of stamping, and particularly relates to a stamping device convenient to demould, which comprises a base. A fixing plate is fixedly installed on the upper portion of the base, supports are fixedly installed on the two sides of the top of the fixing plate, a lower die is fixedly installed on the upper portions of supporting columns, a positioning plate is arranged above the lower die, through holes are formed in the four corners of the top of the positioning plate and the four corners of the top of the lower die, and an upper die is fixedly installed at the bottom of the positioning plate. A stepped hole is formed in the center in the support, a groove is formed in the top of the stepped hole, an air cylinder is fixedly installed at the lower end in the stepped hole, a sliding rod is slidably installed in the air cylinder, a suction cup is fixedly installed at the lower end of the air cylinder, and a reset spring is arranged between the upper end of the sliding rod and the air cylinder and arranged on the sliding rod in a sleeving mode. An ejector block is slidably mounted in the die hole; and through introduction of the air cylinder and the suction cup system, rapid adsorption and preliminary fixing of the stamping part are achieved, the subsequent demolding operation is greatly simplified, and the production efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping, in particular to a stamping device which is convenient for demoulding. Background Technique

[0002] Stamping is a forming processing method. It relies on a press and a die to apply external forces to plates, strips, tubes, profiles, etc., so that they undergo plastic deformation or separation, thereby obtaining workpieces with the required shapes and sizes. Stamping is a highly efficient, high-precision, and high material utilization rate metal processing method.

[0003] A stamping device generally refers to a stamping machine or a punching press. Its working principle is mainly to drive a flywheel through a motor or other power sources, and convert the rotational motion into a reciprocating linear motion of a slider through a series of transmission mechanisms.

[0004] When the existing stamping device is actually used, there are still many disadvantages. For example, after stamping, the workpiece is likely to get stuck in the lower die cavity under stamping conditions, resulting in unsmooth demoulding, which will prolong the time of the entire stamping cycle and reduce production efficiency. Therefore, a stamping device which is convenient for demoulding is proposed for the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the existing technology, when the existing stamping device is actually used, there are still many disadvantages. For example, after stamping, the workpiece is likely to get stuck in the lower die cavity under stamping conditions, resulting in unsmooth demoulding, which will prolong the time of the entire stamping cycle and reduce production efficiency. The utility model proposes a stamping device which is convenient for demoulding.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A stamping device facilitating demolding according to the present utility model includes a base; a fixing plate is fixedly installed on the upper part of the base, brackets are fixedly installed on both sides of the top of the fixing plate, columns are fixedly installed at the four corners of the upper part of the fixing plate, a lower mold is fixedly installed on the upper part of the columns, a positioning plate is arranged above the lower mold, through holes are respectively opened at the four corners of the top of the positioning plate and the lower mold, an upper mold is fixedly installed at the bottom of the positioning plate, support columns on both sides of the brackets penetrate through the through holes, and the positioning plate is slidably installed on the brackets. A stepped hole is opened in the center of the interior of the brackets, a groove is opened at the top of the stepped hole, an air cylinder is fixedly installed at the lower end inside the stepped hole, a sliding rod is slidably installed in the air cylinder, and a suction cup is fixedly installed at the lower end. A return spring is sleeved on the sliding rod between the upper end of the sliding rod and the air cylinder. A mold hole is opened in the center of the lower mold, a top block is slidably installed in the mold hole. Two vertical plates are fixedly installed on the upper part of the base in parallel on one side of the fixing plate, chutes are respectively opened on the inner sides of the upper ends of the vertical plates, a material discharging groove is arranged between the vertical plates, both sides of the material discharging groove are slidably installed in the chutes, a baffle is fixedly installed between the vertical plates in an inclined manner below the material discharging groove. Through the introduction of the air cylinder and the suction cup system, rapid adsorption and preliminary fixation of the stamping parts are realized, greatly simplifying the subsequent demolding operation and significantly improving the production efficiency.

[0007] Preferably, hydraulic cylinders are fixedly installed at the centers of the tops of the brackets respectively, and the hydraulic rods of the hydraulic cylinders are fixedly connected to the tops of both sides of the positioning plate respectively. Through the drive of the hydraulic cylinders, stable lifting of the positioning plate and the upper mold can be realized, improving the stability and precision of the stamping process.

[0008] Preferably, a control rod is arranged above the sliding rod, both ends of the control rod are rotatably installed in the groove through bearings, and one end of the control rod penetrates through the upper mold and is fixedly installed with a mounting seat. A cam is fixedly installed on the control rod directly above the sliding rod. A cylinder is rotatably installed on a cross-section of one side of the upper mold, and one end of the piston rod of the cylinder is rotatably installed in the mounting seat. Through the piston movement of the cylinder, the control rod is driven to rotate, and then the sliding rod is driven to move up and down by the cam. By adjusting the input pressure of the cylinder, the adsorption force of the suction cup on the stamping part can be precisely controlled, facilitating the blanking of the workpiece after demolding.

[0009] Preferably, sliding cylinders are respectively arranged on both sides below the top block, limiting rods are slidably installed in the sliding cylinders, the upper ends of the limiting rods are fixedly installed on both sides of the bottom of the top block respectively, and ejecting springs are sleeved on the limiting rods between the top block and the sliding cylinders. The sliding cylinders and the limiting rods provide guiding and limiting effects for the stable lifting of the top block, ensuring the stability and accuracy of the top block when ejecting the stamping part.

[0010] Preferably, a motor is fixedly installed on the outer side of the upper end of the vertical plate. A connecting shaft is arranged below the material discharging groove, and both ends of the connecting shaft are rotatably installed on the vertical plate through bearings. A gear is fixedly installed in the center of the connecting shaft, and a toothed plate is fixedly installed in the middle of the bottom of the material discharging groove. The teeth on the gear mesh with the tooth grooves on the toothed plate. The rotating shaft of the motor is fixedly connected to one end of the connecting shaft. By means of motor drive, the sliding of the material discharging groove is made more stable and controllable, avoiding the uncertainty and potential safety hazards brought by manual operation.

[0011] Preferably, a fixing frame is fixedly installed on the top of the vertical plate. A blocking rod is rotatably installed on the upper cross bar of the fixing frame, and a sliding groove is formed on one side of the bottom of the fixing frame. A protrusion is formed inside the top end of the blocking rod, and the protrusion slides in the sliding groove. By setting the blocking rod, it provides additional support and guidance for the sliding out of the stamping part, ensuring that the stamping part can slide along a predetermined track and fall to a specified position after separating from the mold.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. During the production process of using the stamping device of the present utility model, the stamping plate is placed on the top of the lower die. The hydraulic cylinder is started to push the positioning plate downward, and the positioning plate drives the upper die to descend. The plate is stamped and formed by the lower die. At the same time, the air cylinder is started to drive the control rod to rotate through the mounting seat, the control rod drives the cam to rotate, and the protruding part of the cam drives the sliding rod to slide in the air cylinder, compressing the return spring while the lower end of the sliding rod closes the lower end of the air cylinder. During the stamping process, the suction cup contacts the upper part of the workpiece and then adsorbs on the surface of the workpiece. After the stamping is completed, the upper die is lifted by the hydraulic cylinder, and at the same time, the ejector spring pushes the ejector block to eject the workpiece out of the lower die. The workpiece is separated from the lower die under the action of the suction cup, completing the structure design of automatic demoulding, realizing the function of automatic demoulding, solving the problems that there are still many disadvantages in the existing stamping devices during actual use, such as after stamping, the workpiece is prone to get stuck in the lower die cavity under the stamping conditions, resulting in unsmooth demoulding, which will prolong the time of the entire stamping cycle and reduce the production efficiency, and improving the production efficiency. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic diagram of the overall structure of the stamping device;

[0016] Figure 2 It is a schematic diagram of the structure of the stamping mechanism;

[0017] Figure 3 It is a schematic diagram of the internal structure of a stamping device;

[0018] Figure 4 It is a schematic diagram of the structure of a suction cup device;

[0019] Figure 5 It is a schematic diagram of the structure of a material discharging device.

[0020] In the figure: 1. Base; 2. Fixed plate; 3. Bracket; 4. Positioning plate; 5. Hydraulic cylinder; 6. Upper die; 7. Pillar; 8. Lower die; 9. Control rod; 10. Mounting seat; 11. Cylinder; 12. Cam; 13. Air cylinder; 14. Suction cup; 15. Slide bar; 16. Return spring; 17. Ejector block; 18. Limit rod; 19. Ejecting spring; 20. Slide cylinder; 21. Vertical plate; 22. Material discharging groove; 23. Fixed frame; 24. Stop bar; 25. Rack; 26. Gear; 27. Connecting shaft; 28. Baffle; 29. Motor. Specific implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-5As shown in the figure, a stamping device that facilitates demolding includes a base 1; a fixing plate 2 is fixedly installed on the upper part of the base 1, brackets 3 are fixedly installed on both sides of the top of the fixing plate 2, columns 7 are fixedly installed at the four corners of the upper part of the fixing plate 2, a lower die 8 is fixedly installed on the upper part of the columns 7, a positioning plate 4 is arranged above the lower die 8, through holes are opened at the four corners of the top of the positioning plate 4 and the lower die 8, an upper die 6 is fixedly installed at the bottom of the positioning plate 4, support columns on both sides of the brackets 3 penetrate through the through holes, and the positioning plate 4 is slidably installed on the brackets 3. A stepped hole is opened in the center of the interior of the brackets 3, a groove is opened at the top of the stepped hole, an air cylinder 13 is fixedly installed at the lower end of the stepped hole, a sliding rod 15 is slidably installed in the air cylinder 13, and a suction cup 14 is fixedly installed at the lower end. A return spring 16 is arranged between the upper end of the sliding rod 15 and the air cylinder 13 and is sleeved on the sliding rod 15. A die hole is opened in the center of the lower die 8, a top block 17 is slidably installed in the die hole. Two vertical plates 21 are fixedly installed on the upper part of the base 1 in parallel on one side of the fixing plate 2. Chute grooves are opened on the inner sides of the upper ends of the vertical plates 21. A blanking groove 22 is arranged between the vertical plates 21. Both sides of the blanking groove 22 are slidably installed in the chute grooves. A baffle 28 is fixedly installed between the vertical plates 21 in an inclined manner below the blanking groove 22. During operation, when using the stamping device for production, place the sheet on the upper part of the lower die 8, then start the hydraulic cylinder 5 to drive the positioning plate 4 to descend in the brackets 3. The positioning plate 4 drives the upper die 6 to stamp and form the sheet through the lower die 8. The upper die 6 slides into the die hole of the lower die 8, and at the same time drives the top block 17 to slide down. The top block 17 drives the limit rod 18 to slide down in the sliding cylinder 20, compressing the ejection spring 19 to complete the stamping and forming. At the same time, the ejection spring 19 pushes the top block 17 to rise and eject the workpiece out of the die hole of the lower die 8. At the same time, start the air cylinder 11 to drive the control rod 9 to rotate through the mounting seat 10. The control rod 9 drives the cam 12 to rotate. The convex part of the cam 12 drives the sliding rod 15 to slide in the air cylinder 13, compressing the return spring 16 and at the same time closing the lower end of the air cylinder 13 with the lower end of the sliding rod 15. During the stamping process, the suction cup 14 contacts the upper part of the workpiece and then adsorbs on the surface of the workpiece. Then the upper die 6 rises. The top block 17 ejects the workpiece out of the lower die 8 through the ejection spring 19. At the same time, the upper die 6 continues to drive the workpiece to rise through the suction cup 14, moves to below the workpiece through the blanking groove 22 sliding in the vertical plates 21, and then makes the air cylinder 11 communicate with the air cylinder 13 through the return spring 16, releases the adsorption of the suction cup 14 on the workpiece, and makes it fall into the blanking groove 22 for blanking.

[0023] Hydraulic cylinders 5 are fixedly installed at the centers of the tops of the brackets 3, and the hydraulic rods of the hydraulic cylinders 5 are respectively fixedly connected to the tops of both sides of the positioning plate 4. During operation, when using the stamping device for production, start the hydraulic cylinders 5, and the hydraulic rods of the hydraulic cylinders 5 push both sides of the positioning plate 4 to slide in the brackets 3. The positioning plate 4 drives the upper die 6 to move.

[0024] Above the sliding rod 15, a control rod 9 is provided. Both ends of the control rod 9 are rotatably installed in the grooves through bearings. One end of the control rod 9 penetrates through the upper die 6 and is fixedly installed with a mounting seat 10. Above the sliding rod 15, a cam 12 is fixedly installed on the control rod 9. On one side cross-section of the upper die 6, a cylinder 11 is rotatably installed. One end of the piston rod of the cylinder 11 is rotatably installed in the mounting seat 10. During operation, when using the stamping device for production, the cylinder 11 is started. The piston rod of the cylinder 11 drives the mounting seat 10 to move. The mounting seat 10 drives the control rod 9 to rotate. The control rod 9 drives the cam 12 to rotate. The air cylinder 13 and the suction cup 14 are controlled by the cam 12.

[0025] On both sides below the top block 17, sliding cylinders 20 are provided. In the sliding cylinders 20, limiting rods 18 are slidably installed. The upper ends of the limiting rods 18 are fixedly installed on both sides of the bottom of the top block 17. Between the top block 17 and the sliding cylinders 20, ejecting springs 19 are provided and sleeved on the limiting rods 18. During operation, when using the stamping device for production, the upper die 6 descends to close the die with the lower die 8 to stamp the sheet material. The upper die 6 slides into the die hole of the lower die 8, and at the same time drives the top block 17 to slide down. The top block 17 drives the limiting rods 18 to slide down in the sliding cylinders 20, compressing the ejecting springs 19 to complete the stamping forming. Then the upper die 6 rises, and at the same time the ejecting springs 19 push the top block 17 to rise to push the workpiece out of the die hole of the lower die 8 to complete the demolding.

[0026] On the outer side of the upper end of the vertical plate 21, a motor 29 is fixedly installed. Below the material discharging groove 22, a connecting shaft 27 is provided. Both ends of the connecting shaft 27 are rotatably installed on the vertical plate 21 through bearings. In the center of the connecting shaft 27, a gear 26 is fixedly installed. In the middle of the bottom of the material discharging groove 22, a toothed plate 25 is fixedly installed. The teeth on the gear 26 mesh with the tooth grooves on the toothed plate 25. The rotating shaft of the motor 29 is fixedly connected to one end of the connecting shaft 27. During operation, when using the stamping device for production, the motor 29 is started to drive the gear 26 to rotate. The gear 26 drives the material discharging groove 22 to slide on the upper end of the vertical plate 21 through the toothed plate 25, moving one end of the material discharging groove 22 below the upper die 6. Then, the cam 12 is rotated by the cylinder 11 so that the convex part rotates to one side above the top of the sliding rod 15. The air cylinder 13 contacts the suction cup 14 to adsorb the workpiece, causing it to fall into the material discharging groove 22.

[0027] A fixing frame 23 is fixedly installed at the top of the vertical plate 21. A retaining rod 24 is rotatably installed on the upper cross bar of the fixing frame 23. A chute is provided on one side of the bottom of the fixing frame 23. A protrusion is provided inside the top end of the retaining rod 24, and the protrusion slides in the chute. During operation, in the process of using the stamping device for production, the workpiece falls into the material discharging groove 22. The motor 29 is started to reverse, driving the material discharging groove 22 to return. The material discharging groove 22 drives the workpiece to move. When the workpiece moves below the fixing frame 23, one side of it pushes the retaining rod 24 to rotate within the fixing frame 23, enabling the workpiece to move to the other side of the retaining rod 24. When the material discharging groove 22 moves to receive the workpiece again, the retaining rod 24 is fixed differently under the action of the protrusion and the chute, pushing the workpiece out of the material discharging groove 22 to fall onto the baffle 28 and then fall along the baffle 28.

[0028] Working principle: During the production process using the stamping device, the sheet is placed on the upper part of the lower die 8. Then, the hydraulic cylinder 5 is started to drive the positioning plate 4 to descend within the support 3. The positioning plate 4 drives the upper die 6 to stamp the sheet through the lower die 8. The upper die 6 slides into the die hole of the lower die 8, and at the same time drives the ejector block 17 to slide down. The ejector block 17 drives the limit rod 18 to slide down within the sliding cylinder 20, compressing the ejector spring 19 to complete the stamping. At the same time, the ejector spring 19 pushes the ejector block 17 upward to push the workpiece out of the die hole of the lower die 8. At the same time, the air cylinder 11 is started to drive the control rod 9 to rotate through the mounting seat 10. The control rod 9 drives the cam 12 to rotate. The protruding part of the cam 12 drives the slide rod 15 to slide within the air cylinder 13, compressing the return spring 16 and at the same time the lower end of the slide rod 15 closes the lower end of the air cylinder 13. During the stamping process, the suction cup 14 contacts the upper part of the workpiece and then adsorbs on the surface of the workpiece. Then, the upper die 6 rises. The ejector block 17 pushes the workpiece out of the lower die 8 through the ejector spring 19. At the same time, the upper die 6 continues to drive the workpiece to rise through the suction cup 14, moves below the workpiece through the material discharging groove 22 within the sliding vertical plate 21, and then the air cylinder 11 and the return spring 16 are used to connect the air cylinder 13, releasing the suction of the suction cup 14 on the workpiece, causing it to fall into the material discharging groove 22 for discharging.

[0029] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0030] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A stamping device facilitating demolding, characterized in that: It includes a base (1); a fixing plate (2) is fixedly installed on the upper part of the base (1), brackets (3) are fixedly installed on both sides of the top of the fixing plate (2), columns (7) are fixedly installed at the four corners of the upper part of the fixing plate (2), a lower die (8) is fixedly installed on the upper part of the columns (7), a positioning plate (4) is arranged above the lower die (8), through holes are formed at the four corners of the top of the positioning plate (4) and the lower die (8), an upper die (6) is fixedly installed at the bottom of the positioning plate (4), the support columns on both sides of the brackets (3) penetrate through the through holes, and the positioning plate (4) is slidably installed on the brackets (3). A stepped hole is formed in the center of the interior of the brackets (3), a groove is formed at the top of the stepped hole, an air cylinder (13) is fixedly installed at the lower end inside the stepped hole, a sliding rod (15) is slidably installed in the air cylinder (13), and a suction cup (14) is fixedly installed at the lower end. A return spring (16) is sleeved on the sliding rod (15) between the upper end of the sliding rod (15) and the air cylinder (13). A die hole is formed in the center of the lower die (8), and a top block (17) is slidably installed in the die hole. Two vertical plates (21) are arranged in parallel on one side of the fixing plate (2) and are fixedly installed on the upper part of the base (1). Chute grooves are formed on the inner sides of the upper ends of the vertical plates (21). A material discharging groove (22) is arranged between the vertical plates (21). Both sides of the material discharging groove (22) are slidably installed in the chute grooves. A baffle (28) is obliquely arranged below the material discharging groove (22) and is fixedly installed between the vertical plates (21).

2. The stamping device for facilitating demolding according to claim 1, wherein: Hydraulic cylinders (5) are fixedly installed at the centers of the tops of the brackets (3), and the hydraulic rods of the hydraulic cylinders (5) are respectively fixedly connected to the tops of both sides of the positioning plate (4).

3. The stamping device for facilitating demolding according to claim 1, wherein: A control rod (9) is arranged above the sliding rod (15). Both ends of the control rod (9) are rotatably installed in the groove through bearings, and one end of the control rod (9) penetrates through the upper die (6) and a mounting seat (10) is fixedly installed. A cam (12) is fixedly installed on the control rod (9) directly above the sliding rod (15). A cylinder (11) is rotatably installed on a cross section of one side of the upper die (6), and one end of the piston rod of the cylinder (11) is rotatably installed in the mounting seat (10).

4. A stamping device facilitating demoulding as claimed in claim 1, wherein: Sliding cylinders (20) are arranged on both sides below the top block (17). Limit rods (18) are slidably installed in the sliding cylinders (20). The upper ends of the limit rods (18) are fixedly installed on both sides of the bottom of the top block (17). Top-out springs (19) are sleeved on the limit rods (18) between the top block (17) and the sliding cylinders (20).

5. The stamping device facilitating demoulding according to claim 1, characterized in that: A motor (29) is fixedly installed on the outer sides of the upper ends of the vertical plates (21). A connecting shaft (27) is arranged below the material discharging groove (22), and both ends of the connecting shaft (27) are rotatably installed on the vertical plates (21) through bearings. A gear (26) is fixedly installed in the center of the connecting shaft (27). A toothed plate (25) is fixedly installed in the middle of the bottom of the material discharging groove (22). The teeth on the gear (26) are meshed with the tooth grooves on the toothed plate (25). The rotating shaft of the motor (29) is fixedly connected to one end of the connecting shaft (27).

6. The stamping device for facilitating demoulding according to claim 1, wherein: A fixing frame (23) is fixedly installed at the top of the vertical plate (21). A blocking rod (24) is rotatably installed on the upper cross bar of the fixing frame (23). A sliding groove is formed on one side of the bottom of the fixing frame (23). A protrusion is formed inside the top end of the blocking rod (24), and the protrusion slides in the sliding groove.

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