Die structure for pressing multiple convex ribs on hardware from inside to outside

By combining the lower mold body, upper mold body, and drive slider cutter, the problem of pressing multiple ribs from the inside out of the hardware parts is solved, and efficient and precise forming of multiple ribs is achieved.

CN224128319UActive Publication Date: 2026-04-17SHENZHEN KUNZHAN PLASTIC HARDWARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN KUNZHAN PLASTIC HARDWARE CO LTD
Filing Date
2025-05-15
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing mold structure cannot press multiple ribs from the inside out on the hardware parts, resulting in low production efficiency and difficulty in guaranteeing processing accuracy.

Method used

The system employs a combination structure of a lower mold body, an upper mold body, and a drive slider cutter. Through the coordinated work of the lower mold slider and the upper mold slider, multiple ribs are formed simultaneously.

Benefits of technology

It enables efficient processing of multiple protruding ribs on hardware parts, improving production efficiency and processing accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mould structure for pressing a plurality of convex ribs from inside to outside for hardware in the mould field, the mould is formed by combining a lower mould body, an upper mould body and a driving slide block slotting tool, the lower mould body is provided with a lower mould seat and a plurality of lower mould slide blocks, the top of the lower mould seat is provided with a downward concave groove, the lower mould slide blocks are distributed along the circumferential direction of the groove, and the lower mould slide blocks are arranged on the lower mould seat. Convex rib pressing grooves are formed in the inner walls of the convex rib pressing grooves. The upper die body is composed of a hollow upper die base and a plurality of upper die sliding blocks, the upper die sliding blocks are circumferentially installed on the inner side of the upper die base, a protruding part is arranged at the bottom of the upper die base and matched with the contraction track of the lower die sliding blocks, an L-shaped installation groove is formed in the inner wall of the upper die base in the circumferential direction, and limiting parts and forming parts of the upper die sliding blocks slide in transverse and longitudinal communicating parts respectively. And the convex rib pressing strips on the outer side of the forming part correspond to the convex rib pressing grooves. One end of the driving sliding block slotting tool is detachably inserted into the middle of the upper die base and makes contact with all the upper die sliding blocks. And during insertion, a plurality of convex rib structures of the hardware can be punched at a time, and the beneficial effects of being high in machining precision and high in efficiency are achieved.
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Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a mold structure for pressing multiple ribs from the inside out onto hardware parts. Background Technology

[0002] In the manufacturing of automotive hardware parts, pressing raised ribs onto hardware parts is a common processing technique. Raised ribs enhance the strength and improve the mechanical properties of parts, while also facilitating subsequent connection and assembly with other components. However, current molds used for pressing raised ribs from the inside out on hardware parts have significant technical defects.

[0003] Existing molds of this type can only generate one rib at a time during processing. This is due to limitations in the mold's structural design; the way the lower and upper mold bodies fit together, and the movement mechanism of the slider, prevent the simultaneous forming of multiple rib structures. In actual production, pressing multiple ribs onto a single metal part requires repeated stamping operations. This not only significantly increases production time and reduces the mold's production efficiency, but also leads to problems such as the accumulation of positioning errors from multiple stamping operations, making it difficult to guarantee processing accuracy and affecting the product quality of the metal part. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a mold structure for pressing multiple ribs from the inside out on hardware parts, which can effectively solve the technical problem of low efficiency of current molds used for processing ribs.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A mold structure for pressing multiple raised ribs from the inside out on hardware parts includes a lower mold body, an upper mold body, and a drive slider cutter.

[0007] The lower mold body includes a lower mold base and several lower mold sliders. The top of the lower mold base is provided with a downward recessed groove. The lower mold sliders are distributed circumferentially along the groove to form a space for accommodating hardware parts. The lower mold sliders slide up and down close to the inner wall of the groove and can synchronously shrink towards the center of the groove. The inner wall of the lower mold sliders is provided with several raised rib grooves.

[0008] The upper mold body includes a hollow upper mold base and several upper mold sliders. The upper mold sliders are circumferentially mounted on the inner side of the upper mold base. The bottom of the upper mold base is provided with a protrusion. The outer contour of the protrusion matches the shrinkage trajectory of the inner wall of the lower mold slider. The inner wall of the upper mold base is provided with several L-shaped mounting grooves circumferentially. The L-shaped mounting grooves include a transverse guide portion that communicates with the outer side of the upper mold base and a longitudinal guide portion that communicates with the outer side of the protrusion. The upper mold slider includes a limiting portion and a forming portion. The limiting portion is slidably disposed in the transverse guide portion, and the forming portion is slidably disposed in the longitudinal guide portion. The outer side of the forming portion is provided with a rib strip that cooperates with the rib groove. The number and position of the rib strips correspond to the rib groove.

[0009] One end of the drive slider insert is detachably inserted into the middle of the upper mold base, and the drive slider insert simultaneously contacts all the upper mold sliders. When the drive slider insert is inserted into the interior of the upper mold base, the drive slider insert pushes each upper mold slider to move horizontally outward, so that the rib pressure strip protrudes outward from the outside of the protrusion and cooperates with the rib pressure groove to form the rib structure.

[0010] Furthermore, the inner wall of the groove is provided with an inclined surface that contacts the outer side of the lower mold slider, and a first limiting groove is provided on both sides of the inclined surface, and a first limiting block matching the first limiting groove is provided at both ends of the lower mold slider.

[0011] Furthermore, the inner wall of the groove is provided with a plurality of guide grooves for controlling the movement of the lower mold slider, and the outer side of the lower mold slider is provided with guide blocks that cooperate with the corresponding guide grooves.

[0012] Furthermore, the bottom of the lower mold slider is provided with a lower mold slider ejector pin extending to the lower mold base.

[0013] Furthermore, the bottom of the lower mold base is provided with a positioning block for positioning and installation.

[0014] Furthermore, the transverse guide portion is provided with a movable limiting groove, and the bottom of the limiting portion is provided with an anti-detachment portion that slides within the movable limiting groove.

[0015] Furthermore, both the upper mold base and the limiting part are provided with spring members for resetting the upper mold slider, and the spring members provide elastic force to move the upper mold slider to the center of the upper mold base.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model achieves the processing of multiple protruding ribs on hardware parts by effectively cooperating between the lower mold body, the upper mold body, and the drive slider cutter. At the same time, the lower mold slider and the upper mold slider work together to stamp the structure of multiple protruding ribs on hardware parts in one go, which has the advantages of high processing accuracy and high efficiency. Attached Figure Description

[0018] Figure 1 This is an exploded view of the overall structure of this utility model embodiment;

[0019] Figure 2 This is an exploded view of the internal structure of the mold body in an embodiment of this utility model;

[0020] Figure 3 This is an exploded view of the internal structure of the upper mold body in an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the upper mold base structure in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the upper mold slider structure in an embodiment of the present invention;

[0023] Numbering on the map:

[0024] 100 - Lower mold body, 200 - Upper mold body, 300 - Drive slider cutter, 400 - Hardware parts;

[0025] 1-Lower mold base, 2-Lower mold slider, 3-Upper mold base, 4-Upper mold slider, 5-Spring component;

[0026] 101-Groove, 102-Inclined surface, 103-First limiting groove, 104-Guide groove, 105-Positioning block;

[0027] 201-Rib groove, 202-First limiting block, 203-Guide block, 204-Lower mold slider ejector pin;

[0028] 301 - Protrusion; 302 - L-shaped mounting groove;

[0029] 3021 - Lateral conduction section, 3022 - Longitudinal conduction section, 3023 - Movable limiting groove;

[0030] 401-Limiting part, 402-Forming part, 403-Rib strip, 404-Anti-detachment part. Detailed Implementation

[0031] 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.

[0032] like Figure 1-5As shown, this utility model provides a mold structure for pressing multiple ribs from the inside out on hardware parts. It is mainly used for processing automotive hardware parts. Through the coordinated work of a specific lower mold body, upper mold body and driving slider cutter, multiple rib structures are pressed out on the hardware parts.

[0033] The lower mold body 100 is mainly composed of a lower mold base 1 and several lower mold sliders 2.

[0034] The top of the lower mold base 1 has a downwardly recessed groove 101, which is used to accommodate the lower mold slider 2 and forms a space for placing the hardware part 400 through the lower mold base 2. The inner wall of the groove 101 has an inclined surface 102 that contacts the outer side of the lower mold slider 2. The design of the inclined surface 102 helps to guide and position the lower mold slider 2 during the sliding process. The two sides of the inclined surface 102 are respectively provided with first limiting grooves 103, which are used to cooperate with the first limiting blocks 202 at both ends of the lower mold slider 2 to limit the sliding range of the lower mold slider 2 and prevent it from sliding out of the groove 101.

[0035] In addition, the inner wall of the groove 101 is provided with a number of guide grooves 104 for controlling the movement of the lower mold slider 2, and the outer side of the lower mold slider 2 is provided with guide blocks 203 that cooperate with the corresponding guide grooves 104, further ensuring the stability and accuracy of the sliding of the lower mold slider 2.

[0036] The bottom of the lower mold base 1 is provided with a positioning block 105 for positioning and installation, which facilitates the installation and positioning of the mold on the processing equipment.

[0037] Several lower die sliders 2 are spaced apart circumferentially along the groove 101. The lower die sliders 2 slide up and down close to the inner wall of the groove 101 and can synchronously retract towards the center of the groove 101. The inner wall of the lower die slider 2 is provided with several raised rib grooves 201, which are used to cooperate with the raised rib strips 403 of the upper die slider 4 to form a raised rib structure. The two ends of the lower die slider 2 are provided with first limiting blocks 202 that match the first limiting groove 103 to ensure that the lower die slider 2 does not exceed the specified range during sliding. The outer side of the lower die slider 2 is provided with guide blocks 203 that cooperate with the corresponding guide grooves 104, so that the lower die slider 2 can slide along a predetermined trajectory.

[0038] The bottom of the lower mold slider 2 is provided with a lower mold slider ejector pin 204 extending to the lower mold base 1. The lower mold slider ejector pin 204 can be connected to an external drive device to drive the lower mold slider 2 to slide up and down and retract.

[0039] The upper mold body 200 includes a hollow upper mold base 3 and several upper mold sliders 4.

[0040] The bottom of the upper mold base 3 is provided with a protrusion 301. The outer contour of the protrusion 301 matches the shrinkage trajectory of the inner wall of the lower mold slider 2, ensuring that the upper mold base 3 can be accurately inserted into the lower mold body 100 when the mold is closed. The inner wall of the upper mold base 3 is provided with several L-shaped mounting grooves 302. The L-shaped mounting grooves 302 include a transverse guide portion 3021 that communicates with the outside of the upper mold base 3 and a longitudinal guide portion 3022 that communicates with the outside of the protrusion 301. The transverse guide portion 3021 is provided with a moving limiting groove 3023, which is used to cooperate with the anti-disengagement portion 404 at the bottom of the limiting portion 401 of the upper mold slider 4 to prevent the upper mold slider 4 from disengaging from the L-shaped mounting groove 302 during sliding.

[0041] The upper mold slider 4 is circumferentially mounted on the inner side of the upper mold base 3. The upper mold slider 4 includes a limiting part 401 and a forming part 402. The limiting part 401 is slidably disposed in the transverse guide part 3021. The bottom of the limiting part 401 is provided with an anti-detachment part 404 that slides within the movable limiting groove 3023 to ensure the stability of the upper mold slider 4 during transverse movement. The forming part 402 is slidably disposed in the longitudinal guide part 3022. The outer side of the forming part 402 is provided with a rib pressing strip 403 that cooperates with the rib pressing groove 201. The number and position of the rib pressing strips 403 correspond to the rib pressing groove 201 and are used to press out the rib structure on the hardware part 400 when the mold is closed.

[0042] Both the upper mold base 3 and the limiting part 401 are provided with spring members 5 for resetting the upper mold slider 4. The spring members 5 provide elastic force to move the upper mold slider 4 to the middle of the upper mold base 3. When the mold is opened, the elastic force of the spring members 5 causes the upper mold slider 4 to automatically reset, which facilitates the next mold closing operation.

[0043] One end of the drive slider inserter 300 is detachably inserted into the middle of the upper mold base 3, and the drive slider inserter 300 simultaneously contacts all the upper mold sliders 4. When the drive slider inserter 300 is inserted into the interior of the upper mold base 3, the drive slider inserter 300 pushes each upper mold slider 4 to move horizontally outward, so that the rib pressing strip 403 protrudes outward from the outside of the protrusion 301 and cooperates with the rib pressing groove 201 to form the rib structure.

[0044] In use, the hardware part 400 to be processed is placed inside the lower mold slider 2. At this time, the lower mold slider 2 is in an outward expanding state, providing space to accommodate the hardware part 400. The upper mold body 200 moves downward, and the protrusion 301 is inserted into the lower mold body 100 and extends into the interior of the hardware part 400. At the same time, the slider inserter 300 is driven to insert into the upper mold base 3, pushing each upper mold slider 4 to move horizontally outward, so that the rib pressing strip 403 protrudes outward from the outside of the protrusion 301 and cooperates with the rib pressing groove 201 on the inner wall of the lower mold slider 2. The mold continues to close, and the upper mold body 200 and the lower mold body 100 are completely closed. The rib pressing strip 403 of the upper mold slider 4 and the rib pressing groove 201 of the lower mold slider 2 work together to press out multiple rib structures on the hardware part 400. The upper mold body 200 moves upward, and the elastic force of the spring 5 causes the upper mold slider 4 to automatically reset. At the same time, the lower mold slider ejector pin 204 drives the lower mold slider 2 to slide upward and expand outward, and the processed hardware part 400 is taken out.

[0045] Compared with traditional technologies, this solution achieves the processing of multiple protruding ribs on the hardware part 400 from the inside out through the effective cooperation between the lower mold body 100, the upper mold body 200, and the driving slide cutter 300. The lower mold slide 2 and the upper mold slide 4 work together to stamp the structure of more than 400 protruding ribs on the hardware part in one go, which has the advantages of high processing accuracy and high efficiency.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mold structure for pressing multiple raised ribs onto hardware parts from the inside out, comprising a lower mold body, an upper mold body, and a drive slider cutter, characterized in that: The lower mold body includes a lower mold base and several lower mold sliders. The top of the lower mold base is provided with a downward recessed groove. The lower mold sliders are distributed circumferentially along the groove to form a space for accommodating hardware parts. The lower mold sliders slide up and down close to the inner wall of the groove and can synchronously shrink towards the center of the groove. The inner wall of the lower mold sliders is provided with several raised rib grooves. The upper mold body includes a hollow upper mold base and several upper mold sliders. The upper mold sliders are circumferentially mounted on the inner side of the upper mold base. The bottom of the upper mold base is provided with a protrusion. The outer contour of the protrusion matches the shrinkage trajectory of the inner wall of the lower mold slider. The inner wall of the upper mold base is provided with several L-shaped mounting grooves. The L-shaped mounting grooves include a transverse guide portion that communicates with the outer side of the upper mold base and a longitudinal guide portion that communicates with the outer side of the protrusion. The upper mold slider includes a limiting portion and a forming portion. The limiting portion is slidably disposed in the transverse guide portion, and the forming portion is slidably disposed in the longitudinal guide portion. The outer side of the forming portion is provided with a rib strip that cooperates with the rib groove. The number and position of the rib strips correspond to the rib groove. One end of the drive slider insert is detachably inserted into the middle of the upper mold base, and the drive slider insert simultaneously contacts all the upper mold sliders. When the drive slider insert is inserted into the interior of the upper mold base, the drive slider insert pushes each upper mold slider to move horizontally outward, so that the rib strip protrudes outward from the outside of the protrusion and cooperates with the rib groove to form the rib structure.

2. The die structure for pressing a plurality of protrusions on a hardware from inside to outside according to claim 1, characterized in that: The inner wall of the groove is provided with an inclined surface that contacts the outer side of the lower mold slider. A first limiting groove is provided on both sides of the inclined surface, and a first limiting block matching the first limiting groove is provided at both ends of the lower mold slider.

3. The die structure for pressing a plurality of protrusions on a hardware from inside to outside according to claim 2, characterized in that: The inner wall of the groove is provided with several guide grooves for controlling the movement of the lower mold slider, and the outer side of the lower mold slider is provided with guide blocks that cooperate with the corresponding guide grooves.

4. The die structure for pressing a plurality of protrusions on a hardware from inside to outside according to claim 1, characterized in that: The bottom of the lower mold slider is provided with a lower mold slider ejector pin that extends to the lower mold base.

5. The die structure for pressing a plurality of protrusions on a hardware from inside to outside according to claim 1, characterized in that: The bottom of the lower mold base is provided with a positioning block for positioning and installation.

6. The die structure for pressing a plurality of protrusions on a hardware from inside to outside according to claim 1, wherein: The transverse guide section is provided with a movable limiting groove, and the bottom of the limiting section is provided with an anti-detachment part that slides within the movable limiting groove.

7. The die structure for pressing a plurality of protrusions from inside to outside of a hardware according to any one of claims 1 to 6, characterized in that: Both the upper mold base and the limiting part are provided with spring members for resetting the upper mold slider. The spring members provide elastic force to move the upper mold slider to the middle of the upper mold base.