Cutting edge lightweight convenient adjusting structure
By designing multiple sets of elastic devices and limiting blocks, the problem of inaccurate adjustment of a single spring force was solved, thereby improving the flexibility of the mold and increasing production efficiency.
Patent Information
- Application Number
- CN202520469534.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-17
AI Technical Summary
In existing technologies, it is difficult to precisely adjust the elastic force of a single spring, resulting in products that do not meet requirements and difficulties in adjustment when changing products.
Multiple sets of elastic devices are adopted. Through the design of limit blocks and blind hole structure, the number of elastic devices can be adjusted. Combined with guide columns and bolt connections, the elastic force is balanced and easy to replace.
It achieves precise elastic adjustment and flexible mold design, improving production efficiency and adaptability while reducing costs.
Smart Images
Figure CN223847930U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping die technology, specifically to a lightweight and convenient adjustment structure for the cutting edge. Background Technology
[0002] In progressive die stamping, a spring is added as an auxiliary structure to prevent indentations from each impact on the workpiece. When not in use, the spring holds the workpiece in place; when needed, it is pushed out and pressed down. While this solves the indentation problem to some extent, it's difficult to adjust the spring force when changing products or adjusting stamping structures. In other words, it's impossible to precisely select the required elasticity at the rated height, leading to products that do not meet specifications. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a lightweight and convenient adjustment structure for the cutting edge that modifies a single spring into multiple sets of elastic devices, and allows the number of springs to be selected according to requirements, thereby accurately achieving the required elasticity, and increasing the features of adjustability and easy replacement.
[0004] The technical solution of this utility model is to provide a lightweight and convenient adjustment structure for the cutting edge, comprising a draw plate cover, a draw plate, a draw plate pad, and a limiting block located within the upper die base, as well as an upper pad, a punch fixing plate, a punch, and a punch fixing block for mounting the lower part of the upper die base; the bottom of the punch is a channel for the material strip to enter; the bottom of the draw plate has multiple grooves, the draw plate pad is located on top of the limiting block, and the top of the draw plate pad has multiple protrusions, each protrusion of the draw plate pad corresponding to a groove of the draw plate, with the protrusions and grooves corresponding vertically. The draw plate does not press down on the draw plate pad. When the draw plate moves a certain distance, the bottom surface of the draw plate body presses down on the draw plate pad and punches it. The limiting block is provided with an elastic device. There are multiple sets of elastic devices. The middle part of the limiting block is provided with an annular stepped end face. The annular stepped end face is provided with multiple blind holes with downward openings. Each set of elastic devices is embedded in two or more blind holes of the limiting block. The top of each set of elastic devices abuts against the inner top surface of the blind hole, and the bottom abuts against the top surface of the upper pad. The number of blind holes in the limiting block is greater than the number of sets of elastic devices.
[0005] The bottom of the limiting block is provided with a guide post, the diameter of which is smaller than that of the limiting block, and it is movably embedded in the through hole of the upper pad.
[0006] The elastic device is a spring, the length of which is greater than the depth of the blind hole, and after the spring is embedded in the blind hole, its bottom extends out of the blind hole.
[0007] After the multiple sets of elastic devices are embedded in the blind holes of the limiting block, the rebound force borne by the limiting block under pressure is balanced in the plane.
[0008] The multiple sets of elastic devices are evenly spaced along the end face of the annular step.
[0009] The limiting block has a central hole and is a stepped hole. An inserted bolt passes through and extends out to connect with the upper pad and the punch fixing plate, thereby fixing the limiting block to the upper pad and the punch fixing plate.
[0010] The springs are all embedded in all the blind holes, or in several of the symmetrical blind holes.
[0011] With the above structure, this utility model has the following advantages: A single spring is replaced with multiple sets of elastic devices, and the number of elastic devices can be selected according to requirements. Furthermore, since the number of blind holes in the limiting block is greater than the number of sets of elastic devices, from two to more devices can be installed to balance the elastic force of the limiting block. The larger number of blind holes provides various installation possibilities, thus increasing the range of choices for the number of elastic devices to achieve the required elasticity. It also facilitates the replacement of different types of elastic devices to adapt to different needs, improving the flexibility and applicability of mold use. The number of springs can also be changed, significantly enhancing the adaptability of the mold and production efficiency.
[0012] As an improvement, the bottom of the limiting block is provided with a guide post. The diameter of the guide post is smaller than that of the limiting block, and it is movably embedded in the through hole of the upper pad to guide the movement of the limiting block.
[0013] As an improvement, the elastic device is a spring, the length of which is greater than the depth of the blind hole. After the spring is embedded in the blind hole, its bottom protrudes outside the blind hole. Using a common spring that is much smaller than the original single spring can reduce costs.
[0014] As an improvement, after the multiple sets of elastic devices are embedded in the blind holes of the limiting block, the rebound force borne by the limiting block under pressure is balanced in the plane, thus achieving equilibrium.
[0015] As an improvement, the multiple sets of elastic devices are evenly spaced along the end face of the annular step, resulting in a more balanced distribution.
[0016] As an improvement, the limiting block is provided with a central hole and is a stepped hole. An inserted bolt passes through and extends out to connect with the upper pad and the punch fixing plate, thereby fixing the limiting block with the upper pad and the punch fixing plate, ensuring connection strength, and making the structure more compact.
[0017] As an improvement, the springs are all embedded in all the blind holes, or in several of the symmetrical blind holes, further increasing the applicability. Attached Figure Description
[0018] Figure 1 This is a structural schematic diagram of the upper part of the stamping die of this utility model.
[0019] Figure 2 This is a front view schematic diagram of the limiting block of this utility model.
[0020] Figure 3 This is a schematic diagram of one state of the draw plate and draw plate pad of this utility model.
[0021] Figure 4 This is a schematic diagram showing another state of the drawer plate and drawer plate pad of this utility model.
[0022] Figure 5 This is a top view of the limiting block of this utility model.
[0023] Figure 6 This is a schematic diagram of the upper part of the stamping die of this utility model in another state.
[0024] As shown in the figure:
[0025] 1. Upper mold base, 2. Slip plate cover, 3. Slip plate, 4. Slip plate pad, 5. Limiting block, 6. Upper pad, 7. Punch fixing plate, 8. Punch, 9. Punch fixing block, 10. Groove, 11. Protrusion, 12. Annular step end face, 13. Blind hole, 14. Guide post, 15. Spring. Detailed Implementation
[0026] The present invention will be further described below with reference to the accompanying drawings.
[0027] like Figures 1-6 As shown, this utility model discloses a lightweight and convenient adjustment structure for the cutting edge, mainly installed on a progressive die. It includes a draw plate cover 2, a draw plate 3, a draw plate pad 4, and a limiting block 5 located within the upper die base 1, as well as an upper pad 6, a punch fixing plate 7, a punch 8, and a punch fixing block 9 mounted on the lower part of the upper die base 1. The punch in the progressive die primarily functions to complete the stamping process. Through its cooperation with the die, the punch completes multiple stamping processes in a single stamping stroke. The design and selection of the punch have a significant impact on the performance of the die and the quality of the stamped parts.
[0028] At the bottom of the punch 8 is the channel for the strip to enter, and the strip enters the channel horizontally.
[0029] The bottom of the draw plate 3 has multiple grooves 10, and the draw plate pad 4 is located on top of the limiting block 5. The top of the draw plate pad 4 has multiple protrusions 11, each protrusion 11 of the draw plate pad 4 corresponding to a groove 10 of the draw plate 3. When the protrusion 11 and the groove 10 are vertically aligned, the draw plate 3 does not press down on the draw plate pad 4, thus the punch 8 does not function during this pressing action. Figure 4 and Figure 6 As shown. When the draw plate 3 moves a certain distance, the bottom surface of the draw plate 3 presses down on the draw plate pad 4 to stamp. At this time, the punch 8 presses down, and together with the die, the material strip is stamped to form the product, such as... Figure 1 and Figure 3 As shown.
[0030] like Figure 1 , Figure 2 and Figure 5 As shown, the limiting block 5 is provided with an elastic device, which consists of multiple sets. In this embodiment, the elastic device is a spring 15. The length of the spring 15 is greater than the depth of the blind hole 13. After the spring 15 is embedded in the blind hole 13, its bottom protrudes outside the blind hole 13. The number of springs is adjustable between 2 and 6, and lightweight springs with different elasticities can be replaced.
[0031] like Figure 2 As shown, the limiting block 5 has an annular stepped end face 12 in the middle, and the annular stepped end face 12 has a plurality of blind holes 13 with downward openings. Each set of elastic devices is embedded in two or more blind holes of the limiting block 5. The top of each set of elastic devices abuts against the inner top surface of the blind hole 13, and the bottom abuts against the top surface of the upper pad 6. The number of blind holes in the limiting block 5 is greater than the number of sets of elastic devices.
[0032] like Figure 2 As shown, the bottom of the limiting block 5 is provided with a guide post 14. The diameter of the guide post 14 is smaller than the diameter of the limiting block 5, and it is movably embedded in the through hole of the upper pad 6.
[0033] After the multiple sets of elastic devices are embedded in the blind holes of the limiting block 5, the rebound force borne by the limiting block 5 under pressure is balanced in the plane. The multiple sets of elastic devices are evenly distributed along the end face 12 of the annular step.
[0034] like Figure 2 As shown, the limiting block 5 has a central hole and is a stepped hole. An inserted bolt passes through and extends out to connect with the upper pad 6 and the punch fixing plate 7, thereby fixing the limiting block 5 to the upper pad 6 and the punch fixing plate 7.
[0035] like Figure 1As shown, all the springs 15 are embedded in all the blind holes 13, or in several symmetrical blind holes 13, so that the number of springs 15 can be set according to the processing requirements, and the number and model of springs can be changed, which significantly enhances the adaptability of the mold and the production efficiency.
Claims
1. A blade light-weight portable adjustment structure, characterized in that: The utility model discloses a puncher, which comprises a pullout plate cover (2) and a pullout plate (3) in an upper die holder (1), a pullout plate cushion block (4) and a limiting block (5), and an upper cushion plate (6), a punch fixed plate (7), a punch (8) and a punch fixed block (9) installed at the lower part of the upper die holder (1); a channel for the entry of a material belt is formed at the bottom of the punch (8); a plurality of grooves (10) are formed at the bottom of the pullout plate (3); the pullout plate cushion block (4) is located at the top of the limiting block (5); a plurality of protrusions (11) are formed at the top of the pullout plate cushion block (4); the protrusion (11) of each pullout plate cushion block (4) corresponds to the groove (10) of one pullout plate (3); when the protrusion (11) and the groove (10) are in a corresponding position, the pullout plate (3) does not press the pullout plate cushion block (4); when the pullout plate (3) moves by a distance, the bottom surface of the body of the pullout plate (3) presses the pullout plate cushion block (4) to punch; the limiting block (5) is provided with elastic devices; the elastic devices are multiple groups; a ring-shaped stepped end face (12) is formed at the middle part of the limiting block (5); the ring-shaped stepped end face (12) is provided with a plurality of downwardly-opened blind holes (13); each group of elastic devices is embedded in two or more blind holes of the limiting block (5); the top of each group of elastic devices abuts against the inner top surface of the blind hole (13); the bottom of each group of elastic devices abuts against the top surface of the upper cushion plate (6); the number of the blind holes of the limiting block (5) is greater than the number of the groups of elastic devices.
2. The blade light-weighted portable adjustment structure according to claim 1, characterized in that: A guide column (14) is formed at the bottom of the limiting block (5); the diameter of the guide column (14) is smaller than the diameter of the limiting block (5); and the guide column (14) is movably embedded in a through hole of the upper cushion plate (6).
3. The blade light-weighted portable adjustment structure according to claim 1, characterized in that: The elastic devices are springs (15); the length of the spring (15) is greater than the depth of the blind hole (13); and the bottom of the spring (15) extends out of the blind hole (13) after the spring (15) is embedded in the blind hole (13).
4. The blade light-weighted portable adjustment structure according to claim 3, characterized in that: After the multiple groups of elastic devices are embedded in the blind holes of the limiting block (5), the rebound force borne by the limiting block (5) is balanced in a plane in a compressed state.
5. The blade light-weighted portable adjustment structure according to claim 3 or 4, characterized in that: The multiple groups of elastic devices are uniformly and spacedly distributed along the ring-shaped stepped end face (12).
6. The blade light-weighted portable adjustment structure according to claim 1, characterized in that: The limiting block (5) is provided with a center hole and is a stepped hole; a bolt is inserted through the center hole and extends out to be connected with the upper cushion plate (6) and the punch fixed plate (7), so that the limiting block (5) is fixed with the upper cushion plate (6) and the punch fixed plate (7).
7. The blade light-weighted portable adjustment structure according to claim 3, characterized in that: The springs (15) are all embedded in all the blind holes (13) or in several symmetrical blind holes (13).