A precision stamping die facilitating demolding

Abstract

The utility model relates to a precision stamping die convenient to demould, aims at solving the current to die stamping before, not setting up spraying lubricating oil device, directly carrying out stamping die causes die wear technical problem, including work table, the top fixed connection of work table has the frame, the top fixed connection of frame in has the support, the side of support is equipped with motor, and the eccentric wheel is equipped with in motor output side through the side of support, and the side swing joint of eccentric wheel has the rotary link, and the both sides of frame in are all set up with the sliding slot, and the sliding fit of two sliding slots has the lifting frame, and the stamping head is with the lower die piece cooperation, the utility model discloses through the stamping device through motor drive eccentric wheel drive rotary link and lifting frame along the up and down movement of sliding slot, and the synchronous action of linkage link with lifting frame, and the oil injection piece of push -out is pushed by the connecting plate, and after stamping, push -out work piece and spray lubricant, realize stamping, push -out and lubrication integration, improve processing efficiency and die life, compact structure, stable operation simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of easy demolding technology, and in particular to a precision stamping die that is easy to demold. Background Technology

[0002] In the field of precision stamping, demolding performance directly affects production efficiency and mold life. Currently, conventional molds mostly rely on manual spraying of release agents or optimization of mold clearance to reduce the risk of sticking. However, there are problems such as uneven lubrication, cumbersome processes, and easy wear after long-term use. Especially when stamping thin-walled or high-precision parts, excessive demolding resistance can lead to product deformation or mold damage. Therefore, there is an urgent need for a precision stamping mold with a self-lubricating structure or surface modification technology to achieve stable demolding and extend the service life of the mold.

[0003] In existing technologies, no lubricating oil spraying device is installed before stamping, leading to direct stamping and subsequent mold wear. For example, the technical solution provided in Chinese Utility Model Patent Publication No. CN202022831242.9, among others, lacks a lubricating oil spraying device during the demolding process. This results in high frictional resistance between the mold and the inner wall of the mold cavity due to direct metal-to-metal contact, causing adhesion. This adhesion not only significantly increases demolding resistance, making demolding difficult, but may also cause scratches on the mold surface or peeling of the plating on the inner wall of the mold cavity if forced demolding is attempted. Furthermore, repeated dry friction accelerates mold wear, reduces dimensional accuracy, and shortens mold lifespan. Therefore, we propose a precision stamping mold that facilitates demolding. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a precision stamping die that is easy to demold, so as to solve the technical problem that the die wear is caused by directly stamping without setting a lubricating oil spraying device before stamping.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a precision stamping die workbench that is easy to demold is designed. A frame is fixedly connected above the workbench, and a bracket is fixedly connected above the frame. A motor is installed on one side of the bracket, and an eccentric wheel is installed through the output end of the motor through one side of the bracket. A rotating connecting rod is rotatably connected to one side of the eccentric wheel. Slide grooves are opened on both sides inside the frame, and a lifting frame is slidably fitted between the two slide grooves. One end of the rotating connecting rod is rotatably connected to the lifting frame. Linkage rods and stamping heads are respectively installed at the four corners, the middle part, and the edge of the lower part of the lifting frame. A lower die is installed above the workbench, and the stamping head cooperates with the lower die. Among them, a connecting plate is installed through one side of the workbench, and an ejector spraying component is installed on one side of the connecting plate. One end of the ejector spraying component cooperates with one side of the lower die.

[0006] Preferably, the lower mold includes a lower template disposed on one side of the worktable, and a plurality of buffer rods are installed between the lower template and the worktable. The buffer rods are respectively located at the four corners below the lower template. A plurality of limiting rods are installed on one side of the worktable, and the plurality of limiting rods are respectively located at the four corners of the lower template.

[0007] Preferably, multiple mounting slots are provided through both sides of the lower template, and a lower mold is fixedly connected in each of the multiple mounting slots. A through hole is provided through one end of the lower mold, and a splash guard is installed between one end of the lower mold and one side of the workbench. Through slots are provided through both the upper and lower sides of the workbench, and the through slots are corresponding to one side of the splash guard. The oil spraying parts slide and fit in the through slots.

[0008] Preferably, the ejector spray component includes multiple oil tanks fixedly connected above the connecting plate. An air inlet is provided through one side of each oil tank. A sealing cylinder is fixedly connected above the oil tank and located above the air inlet. A sealing gasket is slidably fitted inside the sealing cylinder. A push rod is fixedly connected to one side of the sealing cylinder. The other end of the push rod passes through one end of the sealing cylinder and is equipped with a nozzle rod.

[0009] Preferably, the ejector spray nozzle further includes multiple frames fixedly connected to the other side of the worktable. Each of the multiple frames is located at the through slot opened through the worktable. Slides are opened on both sides of the frame, and slide plates are slidably fitted in the slides. Oil outlets are opened through the upper and lower sides of the slide plates, and oil inlet pipes are fixedly connected in the oil outlets. One end of the nozzle rod passes through one side of the slide plate and extends through the through slot opened in the worktable to the outside of the through hole opened at one end of the lower mold.

[0010] Preferably, the ejector spray component also includes an oil outlet pipe and a one-way valve fixedly connected to one side of the oil tank. The oil outlet pipe and the one-way valve are located on both sides of the sealing cylinder, and the other end of the oil outlet pipe extends to one end of the nozzle rod. One end of the one-way valve is fixedly connected to an oil inlet pipe, and the other end of the oil inlet pipe passes through the slide plate and is set inside the frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention utilizes a stamping device that uses a motor to drive an eccentric wheel, which in turn drives a rotating connecting rod and a lifting frame to move up and down along a slide groove. This allows the stamping head to cooperate with the lower die to complete the stamping process. The linkage rod moves synchronously with the lifting frame, pushing the ejector oil-spraying part through a connecting plate. After stamping, the workpiece is ejected and coated with lubricant, thus integrating stamping, ejection, and lubrication. This improves processing efficiency and die life, while also being compact and stable in operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2This is a schematic diagram of one side of the cross-sectional structure of the lower template in this utility model;

[0015] Figure 3 This is a schematic diagram of one side of the cross-sectional structure of the ejector spray component of this utility model;

[0016] Figure 4 This is a schematic diagram of one side of the cross-sectional structure of the lower mold tube of this utility model;

[0017] In the diagram: 1. Workbench; 2. Frame; 3. Support; 4. Motor; 5. Eccentric wheel; 6. Rotating connecting rod; 8. Lifting frame; 9. Slide rail; 10. Lower template; 12. Ejector spray nozzle;

[0018] 801. Linkage rod; 802. Stamping head; 803. Connecting plate;

[0019] 1001. Lower mold; 1002. Splash shield; 1003. Buffer rod; 1004. Limiting rod;

[0020] 1201. Oil tank; 1202. Sealing cylinder; 1203. Push rod; 1204. Nozzle rod; 1205. Oil outlet pipe; 1206. Oil inlet pipe; 1207. One-way valve; 1208. Frame; 1209. Slide plate; 1210. Sealing gasket; 1211. Oil tank cover. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] A precision stamping die for easy demolding includes a worktable 1, a frame 2 fixedly connected above the worktable 1, a support 3 fixedly connected above the frame 2, a motor 4 mounted on one side of the support 3, an eccentric wheel 5 mounted on one side of the output end of the motor 4 passing through the support 3, and a rotating connecting rod 6 rotatably connected to one side of the eccentric wheel 5. Slide grooves 9 are provided on both sides of the frame 2, and a lifting frame 8 is slidably fitted between the two slide grooves 9. One end of the rotating connecting rod 6 is rotatably connected to the lifting frame 8. Linkage rods 801 and stamping heads 802 are respectively installed at the four corners, the middle part, and the edge of the lifting frame 8. A lower die is mounted above the worktable 1, and the stamping head 802 cooperates with the lower die. The linkage rod 801 has a connecting plate 803 installed on one side of the worktable 1, and an ejector spraying component 12 is installed on one side of the connecting plate 803. One end of the ejector spraying component 12 is engaged with one side of the lower die. The present invention uses a stamping device to drive the eccentric wheel 5 through the motor 4 to drive the rotating connecting rod 6 and the lifting frame 8 to move up and down along the slide groove 9, so that the stamping head 802 and the lower die can be precisely engaged to complete the stamping. The linkage rod 801 moves synchronously with the lifting frame 8, and pushes the ejector spraying component 12 through the connecting plate 803. After stamping, the workpiece is ejected and lubricant is sprayed, realizing the integration of stamping, ejection and lubrication, improving processing efficiency and mold life, while having a compact structure and stable operation.

[0023] Specifically, the lower die includes a lower template 10 disposed on one side of the worktable 1. Multiple buffer rods 1003 are installed between the lower template 10 and the worktable 1. The buffer rods 1003 are located at the four corners below the lower template 10. Multiple limiting rods 1004 are installed on one side of the worktable 1. The multiple limiting rods 1004 are located at the four corners of the lower template 10. This utility model achieves flexible buffering during the stamping process through the buffer rods 1003 set at the four corners of the lower template 10, reducing the damage of vibration to the mold and the workpiece. The limiting rods 1004 are distributed at the four corners of the lower template 10 to constrain its horizontal displacement, prevent skewing, and ensure stamping alignment accuracy.

[0024] Furthermore, multiple mounting slots are provided vertically through both sides of the lower template 10, and a lower mold 1001 is fixedly connected in each of the mounting slots. A through hole is provided at one end of the lower mold 1001, and a splash guard 1002 is installed between one end of the lower mold 1001 and one side of the workbench 1. Through slots are provided vertically through both sides of the workbench 1, and the through slots correspond to one side of the splash guard 1002. The oil spraying component 12 is slidably fitted in the through slot. This utility model effectively prevents oil splashing during processing and improves the cleanliness of the working environment by providing through mounting slots on both sides of the lower template 10 to fix the lower mold 1001, combined with the design of through holes and splash guard 1002.

[0025] It is worth noting that the ejector spray nozzle 12 includes multiple oil tanks 1201 fixedly connected above the connecting plate 803. An air inlet is provided through one side of each oil tank 1201. A sealing cylinder 1202 is fixedly connected above the oil tank 1201 and located above the air inlet. A sealing gasket 1210 is slidably fitted inside the sealing cylinder 1202. A push rod 1203 is fixedly connected to one side of the sealing cylinder 1202, and the other end of the push rod 1203 passes through one end of the sealing cylinder 1202. The device is equipped with a nozzle rod 1204. This invention achieves the mixing of oil and gas through the air inlet of the oil tank 1201. The sealing cylinder 1202 and the sliding sealing gasket 1210 cooperate to form a controllable sealed space. The push rod 1203 drives the nozzle rod 1204 to extend and retract, and also drives the sealing gasket 1210 to allow gas to enter the oil tank 1201 in the sealing cylinder 1202 and squeeze the lubricating oil, which rises into the nozzle rod 1204 for spraying. This simplifies the oil circuit control and improves the sealing performance and response speed.

[0026] It is worth mentioning that the ejector spray component 12 also includes multiple frames 1208 fixedly connected to the other side of the worktable 1. The multiple frames 1208 are all located at the through slots opened through the worktable 1. Slides are opened on both sides of the frame 1208, and slide plates 1209 are slidably fitted in the slides. Oil outlets are opened through the upper and lower sides of the slide plates 1209, and oil inlet pipes 1206 are fixedly connected in the oil outlets. One end of the nozzle rod 1204 passes through one side of the slide plate 1209 and extends through the through slots opened in the worktable 1 to the outside of the through hole opened at one end of the lower mold 1001. Through the sliding fit design of the frame 1208 and the slide plate 1209, the position of the limiting push rod 1203 and the nozzle rod 1204 is realized. The oil tank 1201 drives the sealing cylinder 1202 to continue to rise, so that the push rod 1203 and the sealing gasket 1210 slide in the sealing cylinder 1202 and compress the gas into the oil tank 1201.

[0027] It is worth noting that the ejector spraying component 12 also includes an oil outlet pipe 1205 and a one-way valve 1207 fixedly connected to one side of the oil tank 1201. The oil outlet pipe 1205 and the one-way valve 1207 are located on both sides of the sealing cylinder 1202. The other end of the oil outlet pipe 1205 extends to one end of the nozzle rod 1204. One end of the one-way valve 1207 is fixedly connected to an oil inlet pipe 1206. The other end of the oil inlet pipe 1206 passes through the slide plate 1209 and is set in the frame 1208. In this utility model, the sealing cylinder 1202, in conjunction with the push rod 1203 and the sealing gasket 1210, allows gas to rush into the oil tank 1201, thereby allowing lubricating oil to enter the nozzle rod 1204 through the oil outlet pipe 1205 and spray the lubricating oil into the lower mold 1001. The sprayed lubricating oil falls to the slide plate 1209 and then enters the oil tank 1201 through the oil inlet pipe 1206.

[0028] Working principle: In use, the starting motor 4 drives the eccentric wheel 5 to rotate. The eccentric wheel 5, through the rotating connecting rod 6, drives the lifting frame 8 to slide up and down within the slide groove 9, achieving a lifting effect. When the lifting frame 8 descends, it drives the linkage rod 801 and the punch head 802 to descend as well. One side of the lifting frame 8 falls to the side of the limiting rod 1004 for limitation. The buffer rod 1003 can buffer the impact of the lifting frame 8 on the lower mold plate 10 when it descends, allowing the punch head 802 to compress the material into the lower mold 1001, thereby forming the mold. At the same time, the linkage rod 801 drives the connecting plate 803. During descent, the connecting plate 803 drives the sealing cylinder 1202, push rod 1203, nozzle rod 1204, and slide plate 1209 to descend via the oil tank 1201, causing the nozzle rod 1204 to exit the lower mold 1001. When the descent reaches a certain level, the slide plate 1209 is limited within the frame 1208, limiting the positions of the push rod 1203 and nozzle rod 1204. Meanwhile, the connecting plate 803 continues to drive the oil tank 1201 and sealing cylinder 1202 to descend further, causing the sealing gasket 1210 at one end of the push rod 1203 to slide to the top of the sealing cylinder 1202, thus completing the descent.

[0029] When the lifting frame 8 rises, it causes the stamping head 802 to disengage from the lower mold 1001, and the buffer rod 1003 resets. Simultaneously, the linkage rod 801, through the stamping head 802 and the oil tank 1201, drives the sealing cylinder 1202 to rise. As the sealing cylinder 1202 rises, due to the presence of air, the push rod 1203, nozzle rod 1204, and slide plate 1209 follow the rising sealing cylinder 1202. The positions of the push rod 1203 and the sealing gasket 1210 within the sealing cylinder 1202 remain unchanged. When the slide plate 1209 rises to a certain level and is stopped at the top of the frame 1208, the nozzle rod 1204 enters the lower mold 1001 through a through-hole at one end and ejects the compressed mold. Meanwhile, the stamping head 802 continues to drive the oil tank 1201... 201. When the sealing cylinder 1202 rises, and one end of the sealing cylinder 1202 enters the frame 1208, the sliding plate 1209 limits the push rod 1203 and the sealing gasket 1210, preventing them from rising further. This causes the push rod 1203 and the sealing gasket 1210 to slide inside the sealing cylinder 1202, compressing the gas through the air inlet and into the oil tank 1201. When the oil tank 1201 is compressed, it pushes the lubricating oil through the oil outlet pipe 1205 into the nozzle rod 1204, causing the nozzle rod 1204 to enter the lower mold 1001, eject the compressed mold, and spray the lubricating oil. Excess lubricating oil falls through the through hole of the lower mold 1001 onto the upper part of the sliding plate 1209, and the lubricating oil above the sliding plate 1209 flows back into the oil tank 1201 through the oil inlet pipe 1206.

[0030] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A precision stamping die that facilitates demolding, characterized in that, The machine includes a workbench (1), a frame (2) fixedly connected above the workbench (1), a bracket (3) fixedly connected above the frame (2), a motor (4) installed on one side of the bracket (3), an eccentric wheel (5) installed on the side of the output end of the motor (4) passing through the bracket (3), a rotating connecting rod (6) rotatably connected on one side of the eccentric wheel (5), a sliding groove (9) is opened on both sides of the frame (2), a lifting frame (8) is slidably fitted between the two sliding grooves (9), a lifting frame (8) is rotatably connected to one end of the rotating connecting rod (6), a linkage rod (801) and a punch head (802) are respectively installed at the four corners, the middle part and the edge of the lifting frame (8), a lower die is installed above the workbench (1), and the punch head (802) is fitted with the lower die; One end of the linkage rod (801) passes through one side of the workbench (1) and is equipped with a connecting plate (803). One side of the connecting plate (803) is equipped with an ejector spraying component (12), and one end of the ejector spraying component (12) is engaged with one side of the lower mold component.

2. The precision stamping die for easy demolding as described in claim 1, characterized in that, The lower mold includes a lower template (10) set on one side of the workbench (1). Multiple buffer rods (1003) are installed between the lower template (10) and the workbench (1). The buffer rods (1003) are located at the four corners below the lower template (10). Multiple limiting rods (1004) are installed on one side of the workbench (1). The multiple limiting rods (1004) are located at the four corners of the lower template (10).

3. A precision stamping die for easy demolding as described in claim 2, characterized in that, Multiple mounting slots are provided on both sides of the lower template (10), and a lower mold (1001) is fixedly connected in each of the multiple mounting slots. A through hole is provided at one end of the lower mold (1001). A splash shield (1002) is installed between one end of the lower mold (1001) and one side of the workbench (1). Through slots are provided on both the upper and lower sides of the workbench (1). The through slots are located on one side of the splash shield (1002), and the ejector spraying part (12) slides in the through slot.

4. A precision stamping die for easy demolding as described in claim 3, characterized in that, The ejector spray component (12) includes multiple oil tanks (1201) fixedly connected above the connecting plate (803). An air inlet is provided through one side of the oil tank (1201). A sealing cylinder (1202) is fixedly connected above the oil tank (1201) and located above the air inlet. A sealing gasket (1210) is slidably fitted inside the sealing cylinder (1202). A push rod (1203) is fixedly connected to one side of the sealing cylinder (1202). A nozzle rod (1204) is installed at the other end of the push rod (1203) that passes through the sealing cylinder (1202).

5. A precision stamping die for easy demolding as described in claim 4, characterized in that, The ejector spray component (12) also includes multiple frames (1208) fixedly connected to the other side of the worktable (1). The multiple frames (1208) are all located at the through slot opened through the worktable (1). Slides are opened on both sides of the frame (1208). A slide plate (1209) is slidably fitted in the slide. Oil outlets are opened through the upper and lower sides of the slide plate (1209). An oil inlet pipe (1206) is fixedly connected in the oil outlet. One end of the nozzle rod (1204) passes through one side of the slide plate (1209) and extends through the through slot opened in the worktable (1) to the outside of the through hole opened in one end of the lower mold (1001).

6. A precision stamping die for easy demolding as described in claim 4, characterized in that, The ejector spray component (12) also includes an oil outlet pipe (1205) and a one-way valve (1207) fixedly connected to one side of the oil tank (1201). The oil outlet pipe (1205) and the one-way valve (1207) are located on both sides of the sealing cylinder (1202). The other end of the oil outlet pipe (1205) extends to one end of the nozzle rod (1204). One end of the one-way valve (1207) is fixedly connected to an oil inlet pipe (1206). The other end of the oil inlet pipe (1206) passes through the slide plate (1209) and is set in the frame (1208).

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