Novel positioning structure for stripper wedge product
By dividing the strip wedge insert into a two-layer structure, the problem of strip tearing in traditional designs is solved, achieving precise positioning and efficient stamping, thus improving product accuracy and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU KELENTE ELECTRIC CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional stripper wedge inserts are prone to tearing the strip during reciprocating motion, affecting the positioning accuracy and product dimensional accuracy of the stamping process, and cannot fix the guide pin for positioning.
The stripper wedge insert is divided into two layers. The upper layer is responsible for the reciprocating motion of the bending punch, and the lower layer is responsible for the positioning of the product parts. The design of the guide pin and the return spring ensures accurate positioning and convenience.
It improves the precision and production efficiency of product parts, ensures the continuity and stability of the stamping process, and reduces forming errors caused by deviations.
Smart Images
Figure CN224222552U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of release plate wedges, and specifically relates to a novel product positioning structure for release plate wedges. Background Technology
[0002] In traditional mold design, the ejector plate wedge insert is usually designed as a single, integral structure. While this design simplifies the mold manufacturing process to some extent, it can lead to positioning accuracy issues during part forming.
[0003] Positioning accuracy is generally achieved using guide pins, a common positioning element used to ensure the strip maintains the correct orientation and position during stamping, thereby guaranteeing the dimensional accuracy of the product parts. However, in the reciprocating motion of the strip wedge insert, if guide pins are installed, their reciprocating motion within the strip can cause it to tear, thus affecting the smooth progress of the stamping process.
[0004] Because the stripper wedge insert needs to reciprocate to complete stamping, forming and other operations, it is impossible to fix the guide pin inside the stripper wedge insert in the overall design. This makes the stripper strip prone to positional deviation during the stamping process, which in turn seriously affects the dimensional accuracy of the product.
[0005] Therefore, the above problems urgently need to be solved. Utility Model Content
[0006] Purpose of the utility model: In order to overcome the above shortcomings, the purpose of this utility model is to provide a novel product positioning structure for a release wedge. The release wedge insert is divided into two layers. The upper release wedge insert is responsible for the reciprocating motion of the bending punch, and the lower release wedge insert is responsible for positioning the product parts. Due to the positioning of the guide pin, the accuracy of the product parts is greatly improved. At the same time, the design of several return springs increases the convenience of the structure.
[0007] Technical Solution: To achieve the above objectives, this utility model provides a novel product positioning structure for a stripper wedge, comprising a base, a lower template, a stripper plate assembly, an upper template, a connecting plate, and a top plate; the lower template is disposed on the base; the stripper plate assembly is disposed above the lower template, and a set of guide posts is provided between the two; the stripper plate assembly includes a lower plate and an upper plate; the lower plate is connected to the lower template via the guide posts; the upper plate is disposed on the lower plate; a stripper wedge mechanism is provided within the lower plate; the stripper wedge mechanism includes a first stripper wedge insert and a second stripper wedge insert; the first stripper wedge... The wedge insert is connected to the lower plate; the second stripper wedge insert is disposed on the first stripper wedge insert and is slidably connected to the upper surface of the first stripper wedge insert; the first stripper wedge insert is provided with a guide pin; the second stripper wedge insert is provided with a bending punch; the upper template is disposed above the stripper plate assembly, and a material unloading screw is provided between the two for connection; the upper template is provided with a wedge punch; the wedge punch passes through the upper plate and contacts one side of the second stripper wedge insert, and the contact surfaces of the two are corresponding inclined surfaces; the connecting plate is disposed on the upper template; the top plate is disposed above the connecting plate.
[0008] Furthermore, the guide posts between the lower die and the stripper plate assembly ensure that the stripper plate assembly moves in a straight line during the stamping process, avoiding stamping failures caused by skewness. The guide pins on the first stripper wedge insert guide the material into the correct position, avoiding forming errors caused by material deviation, ensuring precise positioning of the material during the stamping process, thereby improving the dimensional accuracy and quality consistency of the stamped parts. The contact surfaces of the wedge punch and the second stripper wedge insert are corresponding inclined surfaces, allowing the stamping force to be accurately transmitted to the bending punch, thereby achieving precise bending forming. By changing the contact position or inclined surface angle between the wedge punch and the second stripper wedge insert, different stamping requirements can be adapted, improving the versatility and flexibility of the equipment.
[0009] Furthermore, the lower end of the bending punch protrudes from the lower surface of the lower plate; the upper surface of the lower template is correspondingly provided with a bending groove for the bending punch. The bending groove provides space for the bending punch to bend the parts, ensuring that the bending operation can be completed in one stamping stroke without additional adjustments or multiple operations, thereby improving production efficiency and shortening the production cycle.
[0010] Furthermore, the lower end of the guide pin protrudes from the lower surface of the lower plate; the upper surface of the lower template is provided with a guide hole for the guide pin. The guide hole, in conjunction with the guide pin, enables precise positioning of the material, improving the accuracy of the release wedge product.
[0011] Furthermore, a first return spring is provided on the side of the first ejector wedge insert away from the wedge punch; the first return spring abuts against the side of the first ejector wedge insert and the lower plate. The first return spring ensures that the first ejector wedge insert can be quickly and accurately reset, and can be quickly prepared for the next operation after each stamping cycle; at the same time, the first return spring also plays the role of elastic support, providing a certain degree of shock absorption.
[0012] Furthermore, locking pins and mold-locking screws are provided between the lower plate and the upper plate, and between the upper template, connecting plate, and top plate. The locking pins and mold-locking screws work together to ensure precise alignment and stable operation of the various components, thus improving production quality.
[0013] Furthermore, a second return spring is provided below the top plate; the second return spring passes through the upper template and the connecting plate, and abuts against the upper plate and the top plate. The second return spring provides a reliable return force for the top plate, the upper template, and the connecting plate; during the production process, the upper template moves downward with the movement of the external stamping machine to complete the stamping operation. After stamping is completed, the stamping machine drives the top plate to begin its return stroke. At this time, the elastic restoring force of the second return spring can ensure that these components can quickly and accurately return to their initial positions, preparing for the next stamping, effectively avoiding stamping failures caused by components not returning in time, and improving the continuity and stability of the stamping process.
[0014] Furthermore, the unloading screw is locked to the lower plate and the upper plate, and the upper template can move along the axial direction of the unloading screw and is limited by the upper end of the unloading screw; the connecting plate and the top plate are provided with through holes at the corresponding positions of the unloading screw. The through holes on the connecting plate and the top plate provide connection space for the external drive mechanism, which facilitates driving the unloading screw to open the upper plate and the upper template.
[0015] As can be seen from the above technical solution, this utility model has the following beneficial effects:
[0016] 1. This utility model discloses a novel product positioning structure for a stripper wedge, which divides the stripper wedge insert into two layers. The upper stripper wedge insert is responsible for the reciprocating motion of the bending punch, and the lower stripper wedge insert is responsible for positioning the product parts. Due to the positioning of the guide pin, the accuracy of the product parts is greatly improved.
[0017] 2. This utility model provides a novel product positioning structure for a release plate wedge. Through the design of several return springs, the convenience of reusability of the structure is increased. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of a novel product positioning structure for a release plate wedge, as described in this utility model.
[0019] Figure 2This is a schematic diagram of the structure of the novel detachable wedge product positioning structure in the closed mold state according to the present invention;
[0020] In the picture:
[0021] 1-Base;
[0022] 2-Lower template; 21-Guide post; 22-Bending groove; 23-Guide hole;
[0023] 3-Removing plate assembly; 31-Lower plate; 32-Upper plate; 33-Removing plate wedge mechanism;
[0024] 331-First release plate wedge insert; 332-Second release plate wedge insert; 333-First return spring; 3311-Guide pin; 3321-Bending punch;
[0025] 4-Upper template; 41-Ejector screw; 42-Angled wedge punch;
[0026] 5-Connecting plate;
[0027] 6-Top plate; 61-Second return spring;
[0028] 7-Joint sales;
[0029] 8- Mold locking screw. Detailed Implementation
[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Example
[0031] In this embodiment, as Figure 1 and Figure 2This utility model discloses a novel product positioning structure for a stripper wedge, comprising a base 1, a lower template 2, a stripper plate assembly 3, an upper template 4, a connecting plate 5, and a top plate 6. The lower template 2 is disposed on the base 1. The stripper plate assembly 3 is disposed above the lower template 2, and a set of guide posts 21 are provided between the two. The stripper plate assembly 3 includes a lower plate 31 and an upper plate 32. The lower plate 31 is connected to the lower template 2 via the guide posts 21. The upper plate 32 is disposed on the lower plate 31. A stripper wedge mechanism 33 is provided inside the lower plate 31. The stripper wedge mechanism 33 includes a first stripper wedge insert 331 and a second stripper wedge insert 332. The first stripper wedge insert 331 and the lower plate 31 are connected. The connection is as follows: the second stripper wedge insert 332 is disposed on the first stripper wedge insert 331 and is slidably connected to the upper surface of the first stripper wedge insert 331; the first stripper wedge insert 331 is provided with a guide pin 3311; the second stripper wedge insert 332 is provided with a bending punch 3321; the upper template 4 is disposed above the stripper plate assembly 3, and a material unloading screw 41 is provided between the two for connection; the upper template 4 is provided with a wedge punch 42; the wedge punch 42 passes through the upper plate 32 and contacts one side of the second stripper wedge insert 332, and the contact surfaces of the two are corresponding inclined surfaces; the connecting plate 5 is disposed on the upper template 4; the top plate 6 is disposed above the connecting plate 5.
[0032] Specifically, applying a wear-resistant coating, such as nitriding or hard chrome plating, to the surface of the guide post is a preferred option to reduce wear during use.
[0033] Specifically, a lubrication groove or oil hole can be provided on the sliding contact surface between the first release plate wedge insert 331 and the second release plate wedge insert 332, and lubricating oil can be injected into it to reduce friction and wear;
[0034] In particular, rolling bearings or balls can be added between the first stripper wedge insert 331 and the second stripper wedge insert 332 to reduce sliding friction; at the same time, according to the hardness of the stamping material and the magnitude of the stamping force, more wear-resistant and impact-resistant materials can be selected to make the first stripper wedge insert 331 and the second stripper wedge insert 332.
[0035] Specifically, it is preferable to add an anti-loosening nut to the unloading screw 41 to prevent the unloading screw 41 from loosening due to vibration during the stamping process.
[0036] Specifically, the angle and distance of the inclined surfaces of the wedge punch 42 and the second stripper wedge insert 332 in contact can be adjusted according to the length of bending required for the part.
[0037] In this embodiment, as Figure 1The lower end of the bending punch 3321 protrudes from the lower surface of the lower plate 31; the upper surface of the lower template 2 is provided with a bending groove 22 corresponding to the bending punch 3321.
[0038] Specifically, it is preferable to install a buffer spring at the lower end of the bending punch 3321 to absorb part of the impact force during the stamping process and reduce the wear of the bending punch 3321 and the lower die 2.
[0039] In this embodiment, as Figure 1 The lower end of the guide pin 3311 protrudes from the lower surface of the lower plate 31; the upper surface of the lower template 2 is provided with a guide hole 23 corresponding to the guide pin 3311.
[0040] Specifically, the guide pin 3311 can be designed as a telescopic structure with adjustable length as an option, and its lower end can be adjusted by means of a threaded adjustment device. Since the thickness of the stamped parts may have a certain tolerance range, the telescopic guide pin 3311 can adjust the extension length of the guide pin at any time, thereby optimizing the positioning accuracy.
[0041] Specifically, depending on the size of the part, multiple guide pins 3311 can be set on the first release plate wedge insert 331, and multiple guide holes 23 can be opened on the upper surface of the lower template 2 to further improve the positioning accuracy.
[0042] In this embodiment, as Figure 1 and Figure 2 The first release plate wedge insert 331 is provided with a first return spring 333 on the side away from the wedge punch 42; the first return spring 333 abuts against the side of the first release plate wedge insert 331 and the lower plate 31.
[0043] Specifically, it is preferable to install a spring washer at each end of the first return spring 333 to provide additional support and cushioning, reduce direct contact between the first return spring 333 and the side of the first release plate wedge insert 331 and the lower plate 31, thereby reducing wear.
[0044] In this embodiment, as Figure 1 and Figure 2 The lower plate 31 and the upper plate 32, the upper template 4, the connecting plate 5 and the top plate 6 are all provided with locking pins 7 and locking screws 8.
[0045] Specifically, the lower plate 31 and the upper plate 32 need to be provided with locking pin holes and threaded holes to facilitate the installation of locking pin 7 and mold-locking screw 8, ensuring the accuracy and stability of the installation.
[0046] In this embodiment, as Figure 1 and Figure 2A second reset spring 61 is provided below the top plate 6; the second reset spring 9 passes through the upper template 4 and the connecting plate 5 and abuts between the upper plate 32 and the top plate 6.
[0047] Specifically, through holes need to be designed on the top plate 6 and the upper plate 32, and the diameter of the through holes should be slightly larger than the outer diameter of the second return spring 61 to ensure that the spring can pass through smoothly and has a certain amount of room to move.
[0048] In particular, it is preferable to install a spring seat on the lower surface of the upper plate 32. The center of the spring seat has a groove for placing the upper end of the second return spring 61, providing stable support for the second return spring 61 and preventing the second return spring 61 from tilting or shifting during operation.
[0049] In this embodiment, as Figure 1 and Figure 2 The unloading screw 41 is locked to the lower plate 31 and the upper plate 32. The upper template 4 can move along the axial direction of the unloading screw 41 and is limited by the upper end of the unloading screw 41. The connecting plate 5 and the top plate 6 are provided with through holes at the corresponding positions of the unloading screw 41.
[0050] Specifically, during the assembly process, the upper template 4 is first placed on the unloading screw to ensure that it can move freely along the unloading screw; then, the lower end of the unloading screw 41 is installed between the lower plate 31 and the upper plate 32 and tightened; next, the connecting plate 5 and the top plate 6 are placed on the unloading screw in sequence, and they are locked in the corresponding positions by the locking pin 7 and the mold locking screw 8.
[0051] The working principle of the above embodiments is as follows:
[0052] This utility model discloses a novel product positioning structure for a stripper wedge. When the mold moves from the open state to the closed state, the first stripper wedge insert 331 drives the guide pin 3311, which, together with the guide hole 23, positions the part. The upper template 4 drives the wedge punch 42 to move downward, pushing the second stripper wedge insert 332 to move horizontally, thereby driving the bending punch 3321 to move horizontally and achieve bending of the part.
[0053] After bending, the upper plate 32 is lifted, and the second reset spring 61 assists in lifting the upper plate 32; the upper template 4 drives the inclined wedge punch 42 to move upward, and under the action of the first reset spring 333, the second release plate inclined wedge insert 332 drives the bending punch 3321 to move horizontally to achieve reset.
[0054] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.
Claims
1. A novel product positioning structure using a release plate wedge, characterized in that: include: Base (1) and lower template (2), wherein the lower template (2) is disposed on the base (1); The stripping plate assembly (3) is located above the lower template (2), and a set of guide columns (21) is provided between the two. The stripping plate assembly (3) includes a lower plate (31) and an upper plate (32); the lower plate (31) is connected to the lower template (2) via a guide post (21); the upper plate (32) is disposed on the lower plate (31); The lower plate (31) is provided with a plate release wedge mechanism (33); the plate release wedge mechanism (33) includes a first plate release wedge insert (331) and a second plate release wedge insert (332); The first ejector plate wedge insert (331) is connected to the lower plate (31); the second ejector plate wedge insert (332) is disposed on the first ejector plate wedge insert (331) and is slidably connected to the upper surface of the first ejector plate wedge insert (331); The first ejector wedge insert (331) is provided with a guide pin (3311); the second ejector wedge insert (332) is provided with a bending punch (3321). The upper template (4) is located above the stripper plate assembly (3), and the two are connected by a stripper screw (41); The upper template (4) is provided with a wedge punch (42); the wedge punch (42) passes through the upper plate (32) and contacts one side of the second release plate wedge insert (332), and the contact surfaces of the two are corresponding inclined surfaces; Connecting plate (5), the connecting plate (5) is disposed on the upper template (4); Top plate (6), which is located above the connecting plate (5).
2. The novel product positioning structure for a release plate wedge according to claim 1, characterized in that: The lower end of the bending punch (3321) protrudes from the lower surface of the lower plate (31); the upper surface of the lower template (2) is provided with a bending groove (22) for the bending punch (3321).
3. The novel product positioning structure for a release plate wedge according to claim 1, characterized in that: The lower end of the guide pin (3311) protrudes from the lower surface of the lower plate (31); the upper surface of the lower template (2) is provided with a guide hole (23) for the guide pin (3311).
4. The novel product positioning structure for a release plate wedge according to claim 1, characterized in that: The first release plate wedge insert (331) is provided with a first return spring (333) on the side away from the wedge punch (42); the first return spring (333) abuts against the side of the first release plate wedge insert (331) and the lower plate (31).
5. The novel product positioning structure for a release plate wedge according to claim 1, characterized in that: A locking pin (7) and a mold-locking screw (8) are provided between the lower plate (31) and the upper plate (32), between the upper template (4), the connecting plate (5) and the top plate (6).
6. The novel product positioning structure for a release plate wedge according to claim 1, characterized in that: A second reset spring (61) is provided below the top plate (6); the second reset spring (61) passes through the upper template (4) and the connecting plate (5) and abuts between the upper plate (32) and the top plate (6).
7. The novel product positioning structure for a release plate wedge according to claim 1, characterized in that: The unloading screw (41) is locked with the lower plate (31) and the upper plate (32). The upper template (4) can move along the axial direction of the unloading screw (41) and is limited by the upper end of the unloading screw (41). The connecting plate (5) and the top plate (6) are provided with through holes at the corresponding positions of the unloading screw (41).