Roller washing machine door buckle mold
By designing a door latch mold for drum washing machines that combines a limiting post and a locking mechanism, the problem of inconvenient disassembly of existing molds has been solved, enabling rapid disassembly and installation and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO DELITONG PRECISION MASCH CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-05-12
AI Technical Summary
The existing door latch molds for drum washing machines are inconvenient to replace and disassemble, especially since the lower mold is fixed with screws, making disassembly difficult.
A drum washing machine door latch mold was designed, comprising a base, a fixed mold structure, and a top mold structure. The lower mold can be quickly disassembled and installed through the cooperation of limiting posts and latches, and the mold can be stably fixed and the model can be formed by the cooperation of hydraulic cylinder and sliding plate.
It enables the rapid disassembly and installation of the door latch mold for drum washing machines, improving production efficiency and reducing the difficulty and time cost of mold replacement.
Smart Images

Figure CN224222488U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, specifically a door latch mold for a drum washing machine. Background Technology
[0002] With the rapid development of society and the economy, stamping, a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or undergo plastic deformation, thereby obtaining the desired parts. Stamping dies are special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products), and are called cold stamping dies (commonly known as cold stamping molds). For the production of washing machine snap-fit connectors, the use of dies is indispensable. Since washing machine snap-fit connectors are generally small in size, their production process is mostly injection molding.
[0003] Furthermore, different injection molds are required when processing buckle components of different sizes, which necessitates changing the injection mold. In order to ensure the stability of the lower mold, the lower mold is mostly tightened onto the fixed base with screws, which is very inconvenient to disassemble and remove. Therefore, this does not meet the existing requirements. In response, we have proposed a door buckle mold for drum washing machines. Utility Model Content
[0004] The purpose of this utility model is to provide a door latch mold for a drum washing machine, including a base, wherein the top of the base has an installation groove, and further comprising:
[0005] A fixed mold structure includes fixed wooden blocks symmetrically and movably installed in the mounting groove. Each fixed wooden block has a cavity inside. A movable block is movably installed in the cavity inside the fixed wooden block. A strip plate is fixedly connected to the side of the movable block that is far apart from each other. The strip plate is connected through the fixed wooden block.
[0006] The top mold structure has four cylindrical grooves a at the bottom of the inner wall of the mounting groove. The inner wall of the cylindrical grooves a is slidably connected to the top mold column. The bottom of the strip plate is fixedly connected to a latch, which is mainly used to restrict the movement of the top mold column.
[0007] Preferably, the base has limiting grooves a on both sides, the strip plate is slidably connected to the inner wall of the limiting groove a, the top of the strip plate is fixedly installed with teeth, the top of the base has a cylindrical groove b, a limiting post is movably installed in the cylindrical groove b, the inner wall of the cylindrical groove b has a limiting groove b, a tooth block is movably installed in the limiting groove b, the teeth at the bottom of the tooth block mesh with the teeth at the top of the strip plate, and a spring a is sleeved on the outer wall of the limiting post, the spring a is located between the inner top wall of the limiting groove a and the top of the tooth block.
[0008] Preferably, a limiting piece is fixedly connected to the bottom end of the top mold column, the diameter of the limiting piece is larger than the outlet diameter of the cylindrical groove a, and a spring b is fixedly connected to the bottom end of the limiting piece, the bottom end of the spring b being fixedly connected to the inner bottom wall of the cylindrical groove a.
[0009] Preferably, a sliding groove is provided at the bottom of the inner wall of the mounting groove, the latch is L-shaped, the latch can slide in the sliding groove, and an opening is provided between the sliding groove and the cylindrical groove a.
[0010] Preferably, the inner walls on both sides of the limiting groove a are provided with limiting grooves c, the inner walls of the limiting grooves c are slidably connected with limiting strips, and the limiting strips are fixedly connected to the outer walls on both sides of the strip plate.
[0011] Preferably, a lower mold is movably connected to the inner wall of the fixed wooden block facing each other. A cylindrical groove c is opened inside the lower mold. A spring c is fixedly connected to the bottom wall of the cylindrical groove c. A top mold piece is fixedly connected to the top of the spring c. An injection groove is opened at the top of the lower mold.
[0012] Preferably, four limiting rods are fixedly installed at the top of the base, an mounting plate is fixedly installed at the top of the limiting rods, a hydraulic cylinder is fixedly installed at the top of the mounting plate, the movable shaft of the hydraulic cylinder passes through the mounting plate, a sliding plate is fixedly connected to the movable shaft of the hydraulic cylinder, the sliding plate is slidably connected to the limiting rods, and an upper mold assembly is movably connected to the bottom end of the sliding plate by bolts, the upper mold assembly cooperates with the lower mold.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. The door latch mold for a drum washing machine provided by this utility model allows for quick disassembly or installation of the lower mold by pulling the limiting post upwards and moving the strip plate left or right to the side away from or closer to the lower mold. This is convenient and quick.
[0015] 2. The door latch mold for a drum washing machine provided by this utility model allows for the following operation: when the lower mold needs to be removed, the limiting post is pulled upwards, and the strip plate is moved away from the lower mold. The movement of the strip plate causes the latch to move away from the lower mold, thereby disengaging the latch from the limiting plate. The spring pushes the top mold post to push the lower mold out, facilitating the disassembly and removal of the lower mold. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a first sectional view of the present invention;
[0018] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;
[0019] Figure 4 This is a second sectional view of the present invention;
[0020] Figure 5 for Figure 4 Enlarged view of a portion of point B in the middle;
[0021] Figure 6 This is a sectional view with part of the structure hidden.
[0022] In the diagram: 1. Base; 101. Mounting slot; 102. Cylindrical slot a; 103. Slide groove; 2. Fixed wooden block; 201. Movable block; 202. Strip plate; 203. Lock; 204. Limiting slot a; 205. Cylindrical slot b; 206. Limiting post; 207. Limiting slot b; 208. Toothed block; 209. Spring a; 210. Limiting slot c; 211. Limiting strip; 3. Top mold post; 301. Limiting piece; 302. Spring b; 4. Lower mold; 401. Cylindrical slot c; 402. Spring c; 403. Top mold piece; 404. Injection groove; 405. Limiting rod; 406. Mounting plate; 407. Hydraulic cylinder; 408. Slide plate; 409. Upper mold assembly. 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] Please see Figure 1-6 The present invention provides a door latch mold for a drum washing machine, including a base 1, with an installation groove 101 at the top of the base 1, and further including:
[0025] The fixed mold structure is mainly used to fix the lower mold 4. The fixed mold structure includes two symmetrically movable fixed wooden blocks 2 installed in the mounting groove 101. The use of wooden blocks can reduce the damage to the inner wall of the mounting groove 101 caused by the rigid contact between the upper mold assembly 409 and the lower mold 4. The fixed wooden blocks 2 have a cavity inside. The cavity inside the fixed wooden blocks 2 is movably installed with a movable block 201. All edges of the movable block 201 are chamfered. By setting the movable block 201, the damage to the teeth at the top of the strip plate 202 and the teeth at the bottom of the tooth block 208 caused by stress concentration can be reduced to a certain extent. The side of the movable blocks 201 that is far away from each other is fixedly connected to the strip plate 202. The strip plate 202 and the fixed wooden blocks 2 are connected through the strip plate 202. The strip plate 202 and the end of the limiting post 206 that is far away from the base 1 are both fixedly installed with handles.
[0026] The top mold structure is mainly used to eject the lower mold 4 so that the lower mold 4 can be removed. The bottom of the inner wall of the mounting groove 101 is provided with four cylindrical grooves a102. The inner wall of the cylindrical grooves a102 is slidably connected to the top mold column 3. The bottom of the strip plate 202 is fixedly connected with a buckle 203. The end of the buckle 203 near the top mold column 3 is provided with an arc-shaped groove. The buckle 203 is mainly used to restrict the movement of the top mold column 3.
[0027] Specifically, the base 1 has limiting grooves a204 on both sides, and the strip plate 202 is slidably connected to the inner wall of the limiting groove a204. Teeth are fixedly installed at the top of the strip plate 202. The top of the base 1 has cylindrical grooves b205 arranged in a rectangular array. Limiting posts 206 are movably installed within the cylindrical grooves b205. Limiting grooves b207 are formed on the inner wall of the cylindrical grooves b205, and toothed blocks 208 are movably installed within the limiting grooves b207. Sufficient space is reserved in the limiting grooves b207 for the toothed blocks 208 to move onto the grooves. The lower mold 4 is removed or fixed by pulling the limiting post 206 downwards. A spring a209 is sleeved on the outer wall of the limiting post 206. The spring a209 is located between the inner top wall of the limiting groove a204 and the top of the toothed block 208. By pulling the limiting post 206 upwards, the teeth at the bottom of the toothed block 208 are disengaged from the teeth at the top of the strip plate 202. At this time, the strip plate 202 is in an unrestricted state. The strip plate 202 can be pulled out to the side away from the base 1, or pushed to the side closer to the base 1.
[0028] Specifically, a limiting piece 301 is fixedly connected to the bottom end of the top mold column 3. The diameter of the limiting piece 301 is larger than the outlet diameter of the cylindrical groove a102. The design of the limiting piece 301 can prevent the top mold column 3 from detaching from the cylindrical groove a102. A spring b302 is fixedly connected to the bottom end of the limiting piece 301, and the bottom end of the spring b302 is fixedly connected to the inner bottom wall of the cylindrical groove a102. A sliding groove 103 is opened at the bottom end of the inner wall of the mounting groove 101. The latch 203 is L-shaped and can slide in the sliding groove 103. An opening is provided between the sliding groove 103 and the cylindrical groove a102. When the strip plate 202 is moved left and right, the latch 203 also moves left and right. When the lower mold is placed in the mounting groove 101... At time 4, press down on the lower mold 4. The spring b302 will be in a contracted state. When the strip plate 202 is moved towards the direction of the top mold post 3, the latch 203 will also move towards the direction of the top mold post 3. The arc-shaped groove at the end of the latch 203 will be locked above the limit piece 301. At this time, the top mold post 3 will no longer pop up. When it is necessary to remove the lower mold 4, first pull the limit post 206 upward so that the strip plate 202 is in an unrestricted state. Then pull the strip plate 202 away from the base 1. The latch 203 will disengage from the limit piece 301. The spring b302 pushes the top mold post 3 out and pushes the lower mold 4 out upward at the same time to facilitate the removal of the lower mold 4.
[0029] Specifically, limit grooves c210 are provided on the inner walls of both sides of the limit groove a204. Limit strips 211 are slidably connected to the inner walls of the limit grooves c210. The limit strips 211 are fixedly connected to the outer walls of both sides of the strip plate 202. Through the design of the limit grooves c210 and the limit strips 211, the strip plate 202 is more stable in the process of fixing the lower mold 4.
[0030] Specifically, a lower mold 4 is movably connected to the inner wall of the fixed wooden block 2 facing each other. A cylindrical groove c401 is opened inside the lower mold 4. A spring c402 is fixedly connected to the bottom wall of the cylindrical groove c401. A top mold plate 403 is fixedly connected to the top of the spring c402. An injection groove 404 is opened at the top of the lower mold 4. The injection groove 404 is mainly used to place the injection fluid.
[0031] Specifically, four limiting rods 405 are fixedly installed at the top of the base 1. A mounting plate 406 is fixedly installed at the top of each limiting rod 405. A hydraulic cylinder 407 is fixedly installed at the top of the mounting plate 406. The movable shaft of the hydraulic cylinder 407 passes through the mounting plate 406. A sliding plate 408 is fixedly connected to the movable shaft of the hydraulic cylinder 407. The sliding plate 408 is slidably connected to the limiting rods 405. The design of the sliding plate 408 and the limiting rods 405 makes the movement of the sliding plate 408 more stable. The bottom end of the sliding plate 408 is movably connected to... The upper mold assembly 409 works in conjunction with the lower mold 4. When the movable shaft of the hydraulic cylinder 407 extends, it drives the slide plate 408 to move downward. The downward movement of the slide plate 408 drives the upper mold assembly 409 to move downward. The upper mold at the top of the upper mold assembly 409 pushes the model formed in the injection groove 404 downward. When the movable shaft of the hydraulic cylinder 407 retracts, the spring c402 pushes the top mold plate 403 to move upward. The top mold plate 403 pushes the model upward to facilitate the removal of the model.
[0032] Working principle: In use, first insert the lower mold 4 into the mounting slot 101, press the lower mold 4 down, and pull out the limiting post 206 upward, so that the strip plate 202 is in an unrestricted state. When the strip plate 202 is moved towards the top mold post 3, the latch 203 will also move towards the top mold post 3. The arc-shaped groove at the end of the latch 203 will be locked above the limiting piece 301. At this time, the top mold post 3 will no longer pop up. Release the limiting post 206, and the spring a209 pushes the toothed block 208 downward. The bottom of the toothed block 208... When the teeth of the lower mold 4 are engaged with the teeth of the top of the strip plate 202, the lower mold 4 is fixed. When the hydraulic cylinder 407 is activated, the movable shaft of the hydraulic cylinder 407 extends, which will drive the slide plate 408 to move downward. The downward movement of the slide plate 408 will drive the upper mold assembly 409 to move downward. The upper mold at the top of the upper mold assembly 409 will push the model formed in the injection groove 404 downward. When the movable shaft of the hydraulic cylinder 407 is retracted, the spring c402 pushes the top mold plate 403 to move upward. The top mold plate 403 pushes the model upward to facilitate the removal of the model.
[0033] When it is necessary to remove the lower mold 4, pull the limiting post 206 upward so that the strip plate 202 is in an unrestricted state. Pull the strip plate 202 away from the base 1 and the latch 203 will disengage from the limiting piece 301. The spring b302 pushes the top mold post 3 out and pushes the lower mold 4 upward at the same time so as to facilitate the removal of the lower mold 4.
[0034] 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, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A door latch mold for a drum washing machine, comprising a base (1), wherein the top of the base (1) is provided with an installation groove (101), characterized in that, Also includes: The fixed mold structure includes fixed wooden blocks (2) symmetrically and movably installed in the mounting groove (101). The fixed wooden blocks (2) have cavities inside. Movable blocks (201) are movably installed in the cavities inside the fixed wooden blocks (2). A strip plate (202) is fixedly connected to one side of the movable blocks (201) that is far apart from each other. The strip plate (202) is connected through the fixed wooden blocks (2). The top mold structure has four cylindrical grooves a (102) at the bottom of the inner wall of the mounting groove (101). The top mold column (3) is slidably connected to the inner wall of the cylindrical groove a (102). The bottom of the strip plate (202) is fixedly connected to a buckle (203). The buckle (203) is mainly used to restrict the movement of the top mold column (3).
2. The door latch mold for a drum washing machine according to claim 1, characterized in that: The base (1) has limiting grooves a (204) on both sides. The strip plate (202) is slidably connected to the inner wall of the limiting groove a (204). Teeth are fixedly installed on the top of the strip plate (202). The top of the base (1) has a cylindrical groove b (205). A limiting post (206) is movably installed in the cylindrical groove b (205). A limiting groove b (207) is opened on the inner wall of the cylindrical groove b (205). A toothed block (208) is movably installed in the limiting groove b (207). The teeth at the bottom of the toothed block (208) mesh with the teeth at the top of the strip plate (202). A spring a (209) is sleeved on the outer wall of the limiting post (206). The spring a (209) is located between the inner top wall of the limiting groove a (204) and the top of the toothed block (208).
3. The door latch mold for a drum washing machine according to claim 1, characterized in that: The bottom end of the top mold column (3) is fixedly connected to a limiting piece (301). The diameter of the limiting piece (301) is larger than the outlet diameter of the cylindrical groove a (102). The bottom end of the limiting piece (301) is fixedly connected to a spring b (302). The bottom end of the spring b (302) is fixedly connected to the inner bottom wall of the cylindrical groove a (102).
4. The door latch mold for a drum washing machine according to claim 1, characterized in that: The mounting groove (101) has a sliding groove (103) at the bottom of its inner wall. The latch (203) is L-shaped and can slide in the sliding groove (103). An opening is provided between the sliding groove (103) and the cylindrical groove a (102).
5. A door latch mold for a drum washing machine according to claim 2, characterized in that: Limiting grooves c (210) are formed on the inner walls of both sides of the limiting groove a (204). A limiting strip (211) is slidably connected to the inner wall of the limiting groove c (210). The limiting strip (211) is fixedly connected to the outer walls of both sides of the strip plate (202).
6. A door latch mold for a drum washing machine according to claim 1, characterized in that: The inner walls of the fixed wooden blocks (2) are movably connected to the lower mold (4). The lower mold (4) has a cylindrical groove c (401) inside. The bottom wall of the cylindrical groove c (401) is fixedly connected to a spring c (402). The top of the spring c (402) is fixedly connected to a top mold piece (403). The top of the lower mold (4) has an injection groove (404).
7. A door latch mold for a drum washing machine according to claim 6, characterized in that: Four limiting rods (405) are fixedly installed at the top of the base (1). An installation plate (406) is fixedly installed at the top of the limiting rods (405). A hydraulic cylinder (407) is fixedly installed at the top of the installation plate (406). The movable shaft of the hydraulic cylinder (407) passes through the installation plate (406). A sliding plate (408) is fixedly connected to the movable shaft of the hydraulic cylinder (407). The sliding plate (408) is slidably connected to the limiting rods (405). An upper mold assembly (409) is movably connected to the bottom of the sliding plate (408) by bolts. The upper mold assembly (409) cooperates with the lower mold (4).