Material returning device of stamping die
By designing a stamping die ejection device, and utilizing the combination of a return spring and a scissor bracket, the automatic ejection and pushing out of the workpiece is achieved, solving the problem of low efficiency caused by manual workpiece removal and improving processing efficiency.
Patent Information
- Application Number
- CN202423270421.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing stamping dies require manual removal of the workpiece after forming, resulting in low processing efficiency.
A stamping die ejection device was designed, including an upper die, a lower die, a limiting slide, an ejection mechanism, a mounting base, a return spring, a guide groove, a scissor bracket, and an ejection push rod. The mounting base is brought closer by the action of the return spring, the scissor bracket rotates, and the push rod automatically ejects the workpiece.
It enables automatic ejection and retraction of workpieces, improving processing efficiency.
Smart Images
Figure CN223916424U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping dies, specifically a stamping die ejection device. Background Technology
[0002] Stamping is a forming process that uses dies on a press to make various sheet metal parts, shells, containers, or tubular parts into various tubular parts. This type of forming process performed in a cold state is called cold stamping, or simply stamping. Stamping is a production technology that uses the power of conventional or special stamping equipment to directly subject sheet metal to deformation force and deform it in a die, thereby obtaining product parts with certain shapes, sizes, and properties. Usually, after the sheet metal is pressed into the inside of the die, the formed part is ejected and unloaded after the ejector pin inside returns to its original position.
[0003] However, although the current molds can eject the formed workpieces, the workpieces still need to be manually removed from the top of the mold, resulting in low processing efficiency. Utility Model Content
[0004] In view of the shortcomings of the prior art, this utility model provides a stamping die ejection device, which solves the problems mentioned in the background.
[0005] This utility model provides the following technical solution: a stamping die ejection device, including an upper die and a lower die, wherein a limit groove is formed on the upper surface of the lower die, and an ejection mechanism is provided above the limit groove. Two mounting seats are installed inside the ejection mechanism, and a die pressure rod is installed on the outer end of each of the two mounting seats. A return spring is connected between the two mounting seats. A guide groove is installed on the upper surface of each of the two mounting seats, and a scissor bracket is provided on the inner side of each of the two guide grooves. An ejection push rod is installed at the connection point of the two scissor brackets. A rotating shaft is installed between the two scissor brackets and the guide grooves.
[0006] As a further improvement of this utility model, sliders are installed on the lower surfaces of both mounting seats located inside the limiting groove.
[0007] As a further embodiment of this utility model: an upper mold is provided below the upper mold, a compression spring is connected between the upper mold and the upper mold, and an ejector rod is installed inside the lower mold.
[0008] As a further embodiment of this utility model: the reset spring is fixedly connected to both of the mounting seats, and the guide groove is fixedly connected to both of the mounting seats.
[0009] As a further improvement of this utility model, the scissor bracket is rotatably connected to the guide groove via the rotating shaft.
[0010] As a further improvement of this utility model, the mounting base is slidably positioned by the slider and the limiting groove.
[0011] As a further improvement of this utility model, a spring is connected between the ejector rod and the lower mold.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] As the upper mold continues to press the sheet metal downwards into the inside of the ejector bar, after the stamping is completed, the upper mold returns to its original position. After the ejector bar pushes out the formed component, the two mounting seats move closer to each other under the reset action of the reset spring. Then, the two scissor brackets move closer to each other and use the ejection push rod to push the formed part outwards from the top of the upper mold for ejection. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a stamping die ejection device;
[0015] Figure 2 This is a schematic diagram of the ejection mechanism in a stamping die ejection device;
[0016] Figure 3 This is a front view of the entire die in a stamping die ejection device;
[0017] Figure 4 This is a cross-sectional view of the unloading mechanism in a stamping die unloading device;
[0018] Figure 5 This is a cross-sectional view of the entire die in a stamping die ejection device.
[0019] In the diagram: 1. Upper mold; 2. Lower mold; 3. Guide pillar; 4. Upper die; 5. Compression spring; 6. Unloading mechanism; 7. Limiting groove; 201. Ejector rod; 601. Mounting base; 602. Slider; 603. Return spring; 604. Mold pressure rod; 605. Guide groove; 606. Unloading push rod; 607. Scissor bracket; 608. Rotating shaft. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figures 1-5As shown, this embodiment provides a stamping die ejection device, including an upper die 1 and a lower die 2. A limit groove 7 is formed on the upper surface of the lower die 2. An ejection mechanism 6 is provided above the limit groove 7. Two mounting seats 601 are installed inside the ejection mechanism 6. A die pressure rod 604 is installed on the outer end of each of the two mounting seats 601. A return spring 603 is connected between the two mounting seats 601. The return spring 603 is fixedly connected to both mounting seats 601. A guide groove 605 is installed on the upper surface of each of the two mounting seats 601. The guide groove 605 is fixedly connected to both mounting seats 601. A scissor bracket 607 is provided on the inner side of each of the two guide grooves 605. An ejection push rod 606 is installed at the connection of the two scissor brackets 607. A rotating shaft 608 is installed between the two scissor brackets 607 and the guide grooves 605. The scissor brackets 607 are rotatably connected to the guide grooves 605 through the rotating shaft 608.
[0022] like Figures 2-5 As shown, in this embodiment, the lower surfaces of the two mounting bases 601 are equipped with sliders 602 inside the limiting grooves 7. The mounting bases 601 are limited and slidably set with the limiting grooves 7 by the sliders 602. An upper mold 4 is provided below the upper mold 1. A compression spring 5 is connected between the upper mold 4 and the upper mold 1. A guide post 3 is connected between the upper mold 1 and the lower mold 2. An ejector rod 201 is installed inside the lower mold 2. A spring is connected between the ejector rod 201 and the lower mold 2.
[0023] The working principle of this utility model is as follows: In use, the entire ejection mechanism 6 is assembled inside the limiting slide groove 7. When the lower mold 2 and the upper mold 1 are in a state of separation, the plate to be stamped is placed in the stamping groove above the ejector rod 201. When the upper mold 1 is controlled to move downward, the lower surface of the upper mold 1 contacts the upper position of the mold pressure rod 604 under the limiting and guiding action of the guide post 3. This controls the two mold pressure rods 604 to drive the two mounting seats 601 to slide in opposite directions inside the limiting slide groove 7, and stretches and deforms the return spring 603. When the distance between the two mounting seats 601 increases, the two guide grooves 603... The spacing between 05 increases, and the scissor bracket 607 inside the guide groove 605 rotates through the action of the rotating shaft 608. At the same time, the connection between the scissor bracket 607 and the ejector rod 606 also moves, moving the ejector rod 606 away from the center of the lower mold 2. When the upper mold 4 continues to press the plate downwards and punch it into the inside of the ejector rod 201, after the punching is completed, the upper mold 1 returns to its original position. After the ejector rod 201 pushes out the formed component, the two mounting seats 601 approach each other under the return action of the return spring 603. Then, the two scissor brackets 607 approach each other and use the ejector rod 606 to push the formed part outwards from the top of the upper mold 1 for ejection.
[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A punch-die material-removing device comprising an upper die (1) and a lower die (2), characterized in that, The upper surface of the lower mold (2) is provided with a limiting sliding groove (7), the upper side of the limiting sliding groove (7) is provided with a material returning mechanism (6), the inside of the material returning mechanism (6) is mounted with two mounting seats (601), the outer side end of two mounting seats (601) is mounted with a mold pressing rod (604), the mounting seat (601) is connected with a reset spring (603), the upper surface of the mounting seat (601) is mounted with a guide groove (605), the inside of the guide groove (605) is provided with a shear type support (607), the connecting place of two shear type supports (607) is mounted with a material returning push rod (606), the shear type support (607) and the guide groove (605) are mounted with a rotating shaft (608).
2. A blank holder device for a stamping die according to claim 1, wherein The lower surface of the mounting seat (601) is mounted with a sliding block (602) in the inside of the limiting sliding groove (7).
3. The blanking device for a press die according to claim 1, wherein The lower side of the upper mold (1) is provided with an upper mold (4), the upper mold (4) and the upper mold (1) are connected with an extrusion spring (5), the inside of the lower mold (2) is mounted with a material ejecting rod (201).
4. The blanking device for a press die according to claim 1, wherein The reset spring (603) and the mounting seat (601) are fixedly connected, the guide groove (605) and the mounting seat (601) are fixedly connected.
5. The blanking device for a press die according to claim 1, wherein The shear type support (607) is rotatably connected with the guide groove (605) through the rotating shaft (608).
6. The blanking device for a press die according to claim 2, wherein The mounting seat (601) is limitingly and slidably arranged with the limiting sliding groove (7) through the sliding block (602).
7. The blanking device for a press die according to claim 3, wherein The material ejecting rod (201) and the lower mold (2) are connected with a spring.