Alloy door lock guard plate cold extrusion die

By introducing an ejection mechanism and a snap-fit ​​mechanism into the cold extrusion mold of the alloy door lock guard plate, the problems of demolding depression and model adaptability are solved, high-quality finished products and flexible plastic block replacement are achieved, and the mold's performance is improved.

CN224586721UActive Publication Date: 2026-08-04CHONGQING TONGXING TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING TONGXING TECH CO LTD
Filing Date
2025-08-22
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing cold extrusion dies for alloy door lock panels are prone to dents during demolding, and the fixed pressure mechanism cannot adapt to the forming requirements of different models of panels, resulting in poor flexibility.

Method used

The mold employs an ejection mechanism and a snap-fit ​​mechanism. The ejector block and the molded block are moved downward by a hydraulic rod, providing support to prevent dents. The molded block can be quickly replaced through bolt and thread connection, enhancing the flexibility of the mold.

Benefits of technology

It improves the quality of finished products, prevents dents during demolding, and allows for quick replacement of molding blocks as needed, thus enhancing the adaptability and stability of the mold.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224586721U_ABST
    Figure CN224586721U_ABST
Patent Text Reader

Abstract

The utility model relates to door lock accessory production technical field discloses an alloy door lock guard plate cold extrusion die, including ejection mechanism, clamping mechanism, the ejection mechanism includes bottom block, hydraulic rod, a plurality of limit rod, the bottom block top center place inner wall sliding connection has recess frame, the recess frame bottom fixedly connected with horizontal plate, the horizontal plate bottom center place fixedly connected with vertical board, the horizontal plate bottom is close to the fixedly connected with spring in front and back end department, the hydraulic rod output fixedly connected with the top block, the bottom block center place inside bottom fixedly connected with no.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of door lock accessory manufacturing technology, and in particular to a cold extrusion die for an alloy door lock guard plate. Background Technology

[0002] A door lock guard is a device installed around a door lock to protect it, enhance security, and decorate the door surface. Alloy door lock guards are made from alloy materials. Cold extrusion dies achieve precision levels of IT6-IT8, with surface roughness Ra values ​​of 0.8-1.6μm, directly producing dimensionally accurate, smooth-surfaced guards, reducing subsequent grinding and polishing processes.

[0003] In the process of realizing this application, the inventors discovered the following problems with the prior art: Existing alloy door lock guard plate cold extrusion molds generally include structures such as pressure mechanism, limiting mechanism, and support mechanism. When the existing guard plate is demolded, it is mostly ejected by the bottom spring. However, there is a lack of a mechanism to support the top near the bottom spring, which causes the area near the spring to be concave during extrusion. This results in an imperfect match with the top pressure mechanism, affecting product quality. At the same time, most of the existing pressure mechanisms are fixed and can only be extruded and formed on the same type of guard plate. They cannot be replaced and have poor flexibility.

[0004] Therefore, those skilled in the art have provided a cold extrusion die for alloy door lock guard plates to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology by proposing a cold extrusion mold for alloy door lock guards. The top mechanism can improve the quality of the finished product, and the snap-fit ​​mechanism can make the overall device more flexible.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cold extrusion mold for an alloy door lock guard plate, comprising an ejection mechanism and a snap-fit ​​mechanism. The ejection mechanism includes a bottom block, a hydraulic rod, and multiple limiting rods. A groove frame is slidably connected to the inner wall at the top center of the bottom block. A horizontal plate is fixedly connected to the bottom of the groove frame. A vertical plate is fixedly connected to the bottom center of the horizontal plate. A spring is fixedly connected to the bottom of the horizontal plate near the front and rear ends. A top block is fixedly connected to the output end of the hydraulic rod. A block numbered 1 is fixedly connected to the bottom of the center of the bottom block.

[0007] The locking mechanism includes a locking block, a protrusion is movably connected to the inner wall of the bottom of the locking block, a plastic block is fixedly connected to the bottom of the protrusion, a No. 2 bolt is threadedly connected to the inner wall of the front end of the locking block near the bottom, a No. 1 bolt is threadedly connected to the inner wall of one side of the locking block near the top, and the inner wall of the protrusion is slidably connected to the outer walls of the No. 1 bolt and the No. 2 bolt, respectively.

[0008] Furthermore, the top of the card block and the center of the bottom of the top block are fixedly connected, while the top of the plastic block and the bottom of the card block are movably connected.

[0009] Furthermore, the inner walls of the two springs are movably connected to telescopic rods, the tops of the two telescopic rods are fixedly connected to the bottom of the horizontal plate near the front and rear ends, and the bottoms of the two telescopic rods are fixedly connected to the top of the middle of the first block near the front and rear ends.

[0010] Furthermore, the outer wall of the vertical plate is movably connected to the outer wall of the first block near the two springs, and the bottom of the horizontal plate is movably connected to the top of the first block.

[0011] Furthermore, the bottom of the plurality of limiting rods is fixedly connected to the top of the bottom block away from the center, and the outer wall of the plurality of limiting rods is slidably connected to the inner wall of the top block away from the center.

[0012] Furthermore, a top plate is fixedly connected to the outer wall of the hydraulic rod, and the bottom of the top plate away from the center is fixedly connected to the top of multiple limiting rods.

[0013] Furthermore, the outer wall of the plastic block is slidably connected to the inner wall at the center of the bottom block, and the bottom of the two springs is fixedly connected to the top at the center of the first block.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model proposes a cold extrusion mold for alloy door lock guard plates. The hydraulic rod drives the top block, shaping block and other structures to move downward. The plate moves downward and pushes the groove frame, horizontal plate, vertical plate, two springs and two telescopic rods downward. When the bottom of the horizontal plate contacts the top of the first block, the bottom of the vertical plate contacts the top of the center of the first block, and provides certain support for the subsequent shaping, preventing the groove frame from sinking in the middle and affecting the product quality. After the shaping is completed, the hydraulic rod and other structures move upward, and the formed product and other structures are pushed out of the inner wall of the bottom block by the bottom spring, making it easy to remove.

[0016] 2. The present invention proposes a cold extrusion mold for an alloy door lock guard plate. When bolts No. 1 and No. 2 rotate, bolts No. 1 and No. 2 slide out from inside the protrusion and the locking block, which allows for the replacement of different plastic blocks, increasing the flexibility of the overall structure. By using forces in two different directions, a more stable fixation can be ensured. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0019] Figure 3This is a schematic diagram of the ejection mechanism of this utility model;

[0020] Figure 4 This is an exploded view of the snap-fit ​​mechanism of this utility model.

[0021] Legend:

[0022] 1. Ejection mechanism; 2. Snap-fit ​​mechanism; 101. Bottom block; 102. Limiting rod; 103. Top block; 104. Top plate; 105. Hydraulic rod; 106. Groove frame; 107. Horizontal plate; 108. Vertical plate; 109. Block No. 1; 110. Telescopic rod; 111. Spring; 201. Shaping block; 202. Snap-fit ​​block; 203. Bolt No. 1; 204. Bolt No. 2; 205. Protrusion. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1-4 This utility model provides an embodiment of a cold extrusion die for an alloy door lock guard plate, comprising an ejection mechanism 1 and a snap-fit ​​mechanism 2. The ejection mechanism 1 includes a base block 101, a hydraulic rod 105, and multiple limiting rods 102. A groove frame 106 is slidably connected to the inner wall at the top center of the base block 101. A horizontal plate 107 is fixedly connected to the bottom of the groove frame 106. A vertical plate 108 is fixedly connected to the bottom center of the horizontal plate 107. A spring 111 is fixedly connected to the bottom of the horizontal plate 107 near the front and rear ends. The output end of the hydraulic rod 105 is fixed. The top block 103 is connected, and the bottom block 101 has a first block 109 fixedly connected to the center of the bottom. The locking mechanism 2 includes a locking block 202. The bottom inner wall of the locking block 202 is movably connected to a protrusion 205. The bottom of the protrusion 205 is fixedly connected to a plastic block 201. The inner wall of the front end of the locking block 202 near the bottom is threaded with a second bolt 204. The inner wall of the locking block 202 near the top is threaded with a first bolt 203. The inner wall of the protrusion 205 is slidably connected to the outer walls of the first bolt 203 and the second bolt 204 respectively.

[0025] Specifically, the sheet material is placed on top of the groove frame 106. The hydraulic rod 105 pushes the top block 103, shaping block 201, and other structures downwards. The downward movement of the sheet material pushes the groove frame 106, horizontal plate 107, vertical plate 108, two springs 111, two telescopic rods 110, and other structures downwards. When the bottom of the horizontal plate 107 contacts the top of the first block 109, and the vertical plate 108 contacts the top of the center of the first block 109, the output end of the hydraulic rod 105 continues to move downwards to compress and shape the sheet material. The vertical plate 108 provides a certain supporting force for the sheet material during forming, ensuring that the groove frame 106 does not collapse. To ensure the quality of the finished product, after the molding is completed, the hydraulic rod 105 drives the top block 103, the molding block 201 and other structures to reset. At this time, after the pressure on the top is released, the two springs 111 will push the horizontal plate 107, the vertical plate 108, the groove frame 106 and the formed plate out of the bottom block 101 for easy removal. By rotating the first bolt 203 and the second bolt 204, it can be pulled out from the inside of the protrusion 205 and the locking block 202, and the molding block 201 can be replaced. The operation is simple and convenient, and the force in two different directions can make the molding block 201 more firmly fixed and more stable during molding.

[0026] Reference Figures 1-4 The top of the locking block 202 is fixedly connected to the bottom center of the top block 103. The top of the shaped block 201 is movably connected to the bottom of the locking block 202. Telescopic rods 110 are movably connected to the inner walls of the two springs 111. The tops of the two telescopic rods 110 are fixedly connected to the bottom of the horizontal plate 107 near the front and rear ends. The bottoms of the two telescopic rods 110 are fixedly connected to the top of the first block 109 near the front and rear ends. The outer wall of the vertical plate 108 is movably connected to the outer wall of the first block 109 near the two springs 111. The bottom of the horizontal plate 107 is... The top of block 109 is movably connected, the bottom of multiple limiting rods 102 is fixedly connected to the top of the bottom block 101 away from the center, the outer wall of multiple limiting rods 102 is slidably connected to the inner wall of the top block 103 away from the center, the outer wall of the hydraulic rod 105 is fixedly connected to the top plate 104, the bottom of the top plate 104 away from the center is fixedly connected to the top of multiple limiting rods 102, the outer wall of the shaping block 201 is slidably connected to the inner wall of the center of the bottom block 101, and the bottom of the two springs 111 is fixedly connected to the top of the center of the block 109.

[0027] Specifically, the top of the shaping block 201 is embedded inside the bottom of the card block 202, and the two telescopic rods 110 can ensure that the two springs 111 will not be tilted, thus ensuring the quality of the finished product. Multiple limit rods 102 provide restrictions on the downward movement of the top block 103 and other structures, so that they will not shake when squeezed.

[0028] Working principle: The sheet material is placed on top of the groove frame 106. The hydraulic rod 105 is activated, and the output end of the hydraulic rod 105 pushes the bottom top block 103 and the shaping block 201 downward to squeeze the sheet material. The downward movement of the sheet material pushes the groove frame 106, the horizontal plate 107, the vertical plate 108, the two springs 111, and the two telescopic rods 110 downward until the bottom of the horizontal plate 107 contacts the top of the first block 109 and the top of the center of the vertical plate 108 contacts the center of the first block 109. At this time, the output end of the hydraulic rod 105 continues to move downward to squeeze and shape the sheet material. After the shaping is completed, the output end of the hydraulic rod 105 moves upward, driving the top block 103, the shaping block 201, and other structures to move upward. At this time, under the pushing force of the two springs 111, the horizontal plate 107, the vertical plate 108, the groove frame 106, and the formed sheet material will be pushed out for easy removal. The vertical plate 108 provides a certain support force for the sheet material during the forming process to ensure that the groove frame 106 will not collapse and to ensure the quality of the finished product.

[0029] Next, rotate bolt 203 and bolt 204 respectively to remove them from inside the protrusion 205 and the retaining block 202, and then replace the plastic block 201. The operation is simple and convenient, and the force in two different directions can ensure a more stable fixation.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An alloy door lock escutcheon cold extrusion die comprising an ejection mechanism (1), a clamping mechanism (2), characterized in that: The ejection mechanism (1) includes a base block (101), a hydraulic rod (105), and multiple limiting rods (102). A groove frame (106) is slidably connected to the inner wall of the top center of the base block (101). A horizontal plate (107) is fixedly connected to the bottom of the groove frame (106). A vertical plate (108) is fixedly connected to the bottom center of the horizontal plate (107). A spring (111) is fixedly connected to the bottom of the horizontal plate (107) near the front and rear ends. A top block (103) is fixedly connected to the output end of the hydraulic rod (105). A block (109) is fixedly connected to the bottom of the center of the base block (101). The snap-fit ​​mechanism (2) includes a snap-fit ​​block (202). A protrusion (205) is movably connected to the inner wall of the bottom of the snap-fit ​​block (202). A plastic block (201) is fixedly connected to the bottom of the protrusion (205). A second bolt (204) is threadedly connected to the inner wall of the front end of the snap-fit ​​block (202) near the bottom. A first bolt (203) is threadedly connected to the inner wall of one side of the snap-fit ​​block (202) near the top. The inner wall of the protrusion (205) is slidably connected to the outer walls of the first bolt (203) and the second bolt (204), respectively.

2. An alloy door lock escutcheon cold extrusion die according to claim 1, characterized in that: The top of the card block (202) is fixedly connected to the center of the bottom of the top block (103), and the top of the plastic block (201) is movably connected to the bottom of the card block (202).

3. The cold extrusion die for an alloy door lock keeper according to claim 1, wherein: The inner walls of the two springs (111) are movably connected to telescopic rods (110). The tops of the two telescopic rods (110) are fixedly connected to the bottom of the horizontal plate (107) near the front and rear ends. The bottoms of the two telescopic rods (110) are fixedly connected to the top of the middle of the first block (109) near the front and rear ends.

4. The cold extrusion die for an alloy door lock bezel according to claim 1, wherein: The outer wall of the vertical plate (108) is movably connected to the outer wall of the first block (109) near the two springs (111), and the bottom of the horizontal plate (107) is movably connected to the top of the first block (109).

5. The cold extrusion die for an alloy door lock bezel according to claim 1, wherein: The bottom of the plurality of limiting rods (102) is fixedly connected to the top of the bottom block (101) away from the center, and the outer wall of the plurality of limiting rods (102) is slidably connected to the inner wall of the top block (103) away from the center.

6. A cold extrusion die for an alloy door lock strike plate as defined in claim 1 wherein: The outer wall of the hydraulic rod (105) is fixedly connected to a top plate (104), and the bottom of the top plate (104) away from the center is fixedly connected to the top of multiple limiting rods (102).

7. A cold extrusion die for an alloy door lock strike plate as defined in claim 1 wherein: The outer wall of the plastic block (201) is slidably connected to the inner wall at the center of the bottom block (101), and the bottom of the two springs (111) is fixedly connected to the top at the center of the first block (109).