Device for controlling opening and closing sequence of molds
By using an external mold opening and closing sequence control device, the opening and closing sequence of the mold can be precisely controlled, solving the problem of inaccurate mold closing sequence in existing technologies, and realizing a simplified mold structure and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-03
AI Technical Summary
Existing mechanical opening and closing devices for injection molds cannot accurately control the closing sequence of the female mold plate, male mold plate, and stripper plate, resulting in misalignment or damage of internal parts, affecting production accuracy and lifespan, and are also complex in structure and cumbersome in operation.
An external mold opening and closing sequence control device was designed. Through the cooperation of the first moving groove, the second moving groove, the spring block, the limit block and the isolation plate, the precise control of the female mold plate and the male mold plate closing first and the stripper plate closing later is realized.
The mold structure is simplified, ensuring that the various parts of the mold do not interfere with each other, extending the mold life, reducing manufacturing costs, and improving production efficiency and demolding effect.
Smart Images
Figure CN224074926U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold mechanism design technology, and in particular to a device for controlling the opening and closing sequence of a mold. Background Technology
[0002] In existing technology, traditional external mechanical opening and closing devices for injection molds are mainly used to control the separation sequence of the female mold platen, male mold platen, and stripper plate during mold opening, ensuring smooth mold opening and demolding. However, these mechanical opening and closing devices cannot precisely control the closing sequence of the female mold platen, male mold platen, and stripper plate during mold closing. This can cause the female mold platen, male mold platen, and stripper plate to fail to close in the expected order during mold closing, leading to misalignment or damage of internal mold parts, shortening the mold's lifespan, and the stripper plate failing to accurately reset during mold closing, affecting the accuracy of the next injection. Manual intervention or adjustment of the mold closing sequence is required during mold closing, increasing production time and costs. To control the order of mold closing, additional mechanisms are usually needed. Two sets of mechanisms not only occupy mold space but also complicate the mold structure and make operation cumbersome. Utility Model Content
[0003] In view of the deficiencies in the prior art, this application provides an external mold opening and closing sequence control device to solve the technical problems existing in the prior art.
[0004] To achieve the aforementioned objectives, the technical solution provided by this utility model is as follows:
[0005] An external mold opening and closing sequence control device includes a housing fixed to a female mold plate. The housing has a first moving groove and a second moving groove. The opening of the first moving groove is located at the left end of the housing, and the opening of the second moving groove is located at the right end of the housing. A partition plate is provided between the first and second moving grooves. The first moving groove is a blind hole. A spring block is provided at the bottom of the first moving groove. An elastic element is provided on the right side of the spring block, and the right side of the elastic element is fixed to the housing. The spring block and a male mold pull rod fixedly connected to a female mold plate can slide within the first moving groove. A stripper plate pull rod connected to a female mold stripper plate can slide within the second moving groove. A first through hole is provided on the left side of the partition plate, and a second through hole is provided on the right side of the partition plate. A first limiting block is slidably disposed within the first through hole, and a second limiting block is slidably disposed within the second through hole. Both are elastic. The height of the first limiting block and the second limiting block is greater than the thickness of the partition plate. The lower surface of the male mold pull rod is provided with a first limiting groove that matches the top of the first limiting block. The lower surface of the spring block is provided with a second limiting groove that matches the top of the second limiting block. When the top of the first limiting block extends into the first limiting groove, it can restrict the movement of the male mold pull rod. When the top of the second limiting block extends into the second limiting groove, it can restrict the movement of the male mold pull rod. When the bottom of the second limiting block abuts against the left end of the stripper plate pull rod, it can restrict the movement of the stripper plate pull rod. When the male mold pull rod slides in the first moving groove, it can make the bottom of the first limiting block protrude out of the lower surface of the partition plate. When the spring block slides in the first moving groove, it can make the bottom of the second limiting block protrude out of the lower surface of the partition plate. When the stripper plate pull rod slides in the second moving groove, it can make the tops of the first limiting block and the second limiting block protrude out of the upper surface of the partition plate.
[0006] In one embodiment, the housing is a cuboid, and the first and second movable slots are arranged in parallel.
[0007] In one embodiment, both the first through hole and the second through hole are vertically arranged.
[0008] In one embodiment, the first limiting block and the second limiting block are elastic balls, and the diameter of the first limiting block and the second limiting block is greater than the thickness of the partition plate.
[0009] In one embodiment, the ends of the male mold tie rod, the spring block, and the stripper plate tie rod are all arc-shaped.
[0010] In one embodiment, the elastic element is a spring.
[0011] Compared with the prior art, this application has at least the following beneficial effects:
[0012] The external mold opening and closing sequence control device of this application includes a first moving groove and a second moving groove. The first moving groove is a blind hole, and a spring block is provided in the bottom of the first moving groove. The spring block and the mold tie rod fixedly connected to the mold template can slide in the first moving groove. An elastic second limiting block is slidably provided in the second through hole. A partition plate is provided between the first moving groove and the second moving groove. A first through hole is provided on the left side of the partition plate, and a second through hole is provided on the right side of the partition plate. An elastic first limiting block is slidably provided in the first through hole. The lower part of the mold tie rod... The surface of the spring block is provided with a first limiting groove that matches the top of the first limiting block, and the lower surface of the spring block is provided with a second limiting groove that matches the top of the second limiting block. When the male mold pull rod slides in the first moving groove, it can compress the first limiting block, causing the bottom end of the first limiting block to protrude from the lower surface of the partition plate. When the spring block slides in the first moving groove, it can compress the second limiting block, causing the bottom end of the second limiting block to protrude from the lower surface of the partition plate. When the stripper plate pull rod slides in the second moving groove, it can compress the tops of the first and second limiting blocks to protrude from the upper surface of the partition plate. This application achieves the following through the cooperation of the male mold pull rod, spring block, first limiting block, second limiting block and stripper plate pull rod: when the mold is closed, the female mold plate and male mold plate close first, and then the stripper plate closes; when the mold is separated, the stripper plate opens first, and then the female mold plate and male mold plate separate. The external mold opening and closing sequence control device in this application has a simple structure. One device can accurately control the opening and closing sequence of the mold, realizing complex actions such as side core pulling while the various parts of the mold do not interfere with each other, simplifying the mold mechanism, extending the mold life, and reducing the manufacturing cost. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the external mold opening and closing sequence control device in the mold closing state in the embodiments of this application;
[0014] Figure 2 This is a schematic diagram of the external mold opening and closing sequence control device in the mold opening process according to the embodiments of this application;
[0015] Figure 3 This is a schematic diagram of the external mold opening and closing sequence control device in the embodiment of this application when the mold is fully open;
[0016] Figure 4 This is a schematic diagram of the external mold opening and closing sequence control device in the mold closing process of this application embodiment. Figure 1 ;
[0017] Figure 5 This is a schematic diagram of the external mold opening and closing sequence control device in the mold closing process of this application embodiment. Figure 2 .
[0018] Reference numerals in the attached drawings: 1. Male mold tie rod; 101. First limiting groove; 2. Stripper plate tie rod; 3. Spring block; 301. Second limiting groove; 4. First limiting block; 5. Second limiting block; 6. First moving groove; 7. Second moving groove; 8. Isolation plate; 801. First through hole; 802. Second through hole. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.
[0020] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.
[0021] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms and should not be construed as indicating or implying relative importance. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."
[0022] In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical connection or internal connection between two components. They can be direct connection or indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0023] To better understand the technical solution of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings.
[0024] like Figures 1 to 5As shown, this application provides an external mold opening and closing sequence control device, including a housing fixed on a female mold plate. The housing has a first moving groove 6 and a second moving groove 7. The opening of the first moving groove 6 is located at the left end of the housing, and the opening of the second moving groove 7 is located at the right end of the housing. An isolation plate 8 is disposed between the first moving groove 6 and the second moving groove 7. The first moving groove 6 is a blind hole. A spring block 3 is disposed in the bottom of the first moving groove 6, and an elastic element is disposed on the right side of the spring block 3. The right side of the elastic element is fixed to the housing. The spring block 3 and the male mold pull rod 1 fixedly connected to the male mold plate can slide within the first moving groove 6. The stripper plate pull rod 2 connected to the stripper plate of the female mold plate can slide within the second moving groove 7. A first through hole 801 is provided on the left side of the isolation plate 8, and a second through hole 802 is provided on the right side of the isolation plate 8. A first limiting block 4 is slidably disposed in the first through hole 801, and a second limiting block 5 is slidably disposed in the second through hole 802. Both the first limiting block 4 and the second limiting block 5 are elastic. The height of each block 5 is greater than the thickness of the partition plate 8. The lower surface of the male mold pull rod 1 is provided with a first limiting groove 101 that matches the top of the first limiting block 4. The lower surface of the spring block 3 is provided with a second limiting groove 301 that matches the top of the second limiting block 5. When the top of the first limiting block 4 extends into the first limiting groove 101, it can restrict the movement of the male mold pull rod 1. When the top of the second limiting block 5 extends into the second limiting groove 301, it can restrict the movement of the male mold pull rod 1. When the left ends of 2 are abutted, the movement of the stripper plate pull rod 2 can be restricted. When the male mold pull rod 1 slides in the first moving groove 6, it can compress the first limiting block 4 and make the bottom end of the first limiting block 4 protrude from the lower surface of the isolation plate. When the spring block 3 slides in the first moving groove 6, it can compress the second limiting block 5 and make the bottom end of the second limiting block 5 protrude from the lower surface of the isolation plate. When the stripper plate pull rod 2 slides in the second moving groove 7, it can compress the first limiting block 4 and the second limiting block 5 and make the top ends of the first limiting block 4 and the second limiting block 5 protrude from the upper surface of the isolation plate.
[0025] In this embodiment, the shell is a cuboid, the first moving groove 6 and the second moving groove 7 are arranged in parallel, the first through hole 801 and the second through hole 802 are both vertically arranged, the first limiting block 4 and the second limiting block 5 are elastic ball bearings, and the diameter of the first limiting block 4 and the second limiting block 5 is greater than the thickness of the partition plate 8. To prevent damage to the moving groove when the male mold tie rod 1, the spring block 3 and the stripper plate tie rod 2 slide in the groove, the ends of the male mold tie rod 1, the spring block 3 and the stripper plate tie rod 2 are all arc-shaped. The elastic element is a spring.
[0026] The working principle of the external mold opening and closing sequence control device in this embodiment is as follows:
[0027] like Figure 1As shown, when the female mold and male mold are in the fully closed state, the right end of the male mold pull rod 1 is in the first moving groove 6 and pushes the spring block 3 to the bottom of the first moving groove 6. The left end of the stripper plate pull rod 2 is located at the left end of the second moving groove 7. The first limiting block 4 is compressed by the stripper plate pull rod 2 between the first limiting groove 101, the first through hole 801 and the stripper plate pull rod 2 to restrict the movement of the male mold pull rod 1. The second limiting block 5 is compressed by the stripper plate pull rod 2 between the second limiting groove 301, the second through hole 802 and the stripper plate pull rod 2 to restrict the movement of the spring block 3. When the stripper plate pull rod 2 moves to the right, but the left end of the stripper plate pull rod 2 is still to the left of the first limiting block 4, the stripper plate is opened. However, the top of the first limiting block 4 is still in the first limiting groove 101. The limiting effect of the first limiting block 4 on the male mold pull rod 1 is not released. Therefore, the external mold opening and closing sequence control device in this embodiment can realize the stripper plate opening while maintaining the male mold plate and the female mold plate closed for one end for a period of time, so as to improve the demolding effect, reduce product deformation, improve production efficiency and protect the mold.
[0028] like Figure 2 and Figure 3 As shown, when the stripper plate pull rod 2 moves to the right until its left end is between the first limiting block 4 and the second limiting block 5, the stripper plate pull rod 2 no longer presses against the first limiting block 4. The elastic first limiting block 4 moves downward within the first through hole 801, and the top end of the first limiting block 4 disengages from the first limiting groove 101, releasing the limiting effect of the first limiting block 4 on the male mold pull rod 1. The male mold pull rod 1 can then move to the left to separate the male mold plate and the female mold plate. The stripper plate pull rod 2 moves to the right until the stripper plate pull rod 2... When the left end of rod 2 is located to the right of the second limiting block 5, the stripper plate pull rod 2 no longer pushes against the second limiting block 5 upwards. The elastic second limiting block 5 moves downwards within the second through hole 802. The top end of the second limiting block 5 disengages from the second limiting groove 301, releasing the limiting effect of the second limiting block 5 on the spring block 3. The spring block 3 moves to the left under the action of the elastic element. The spring block 3 pushes against the top end of the second limiting block 5. The bottom end of the second limiting block 5 protrudes from the lower surface of the isolation plate, thereby restricting the stripper plate pull rod 2 from moving to the left.
[0029] like Figure 4 As shown, when the female mold plate and the male mold plate need to close again, the male mold pull rod 1 moves to the right, causing the female mold plate and the male mold plate to begin closing. The male mold pull rod 1 moves to the right against the spring block 3. When the second limiting groove 301 has not moved above the second through hole 802, the bottom end of the second limiting block 5 still protrudes from the lower surface of the partition plate, and the stripper plate pull rod 2 still cannot move to the left. At this time, the female mold plate and the male mold plate close, but the stripper plate is not closed. Figure 5As shown, the male mold pull rod 1 moves to the right until the first limiting groove 101 is above the second through hole 802 and the second limiting groove 301 moves to the second through hole 802, thus releasing the male mold pull rod 1 from the first limiting block and the elastic block 3 from the second limiting block. The top of the first limiting block 4 slides to the first limiting groove 101 and the top of the second limiting block slides into the second limiting groove, thus releasing the second limiting block 5 from the stripper plate pull rod 2. The stripper plate pull rod 2 can move to the left, so that the stripper plate pull rod 2 can be reset after the female mold and the male mold are fully closed. That is, the female mold and the male mold are closed first, and then the stripper plate is allowed to close.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.
Claims
1. An apparatus for controlling mold switch sequence, characterized by, The utility model provides a mould structure, including the shell fixed on the female die plate, be provided with first mobile slot and second mobile slot on the shell, the opening of first mobile slot is provided with left end of the shell, the opening of second mobile slot is provided with right end of the shell, is provided with the isolation board between first mobile slot and second mobile slot, first mobile slot is blind hole, is provided with elastic piece in the groove bottom of first mobile slot, the right side of elastic piece is fixed on the shell, the right side of elastic piece is fixed on the shell, the elastic piece and the male die pull rod fixedly connected with male die plate can slide in first mobile slot, the stripper pull rod connected with female die stripper can slide in second mobile slot, the left side of isolation board is provided with first through -hole, and the right side of isolation board is provided with second through -hole, first limit block is arranged in the first through -hole and slides, second limit block is arranged in the second through -hole and slides, first limit block and second limit block are all elastic, and the height of first limit block and second limit block is all greater than the thickness of isolation board, the lower surface of male die pull rod is provided with the first limit slot matched with the top of first limit block, the lower surface of elastic piece is provided with the second limit slot matched with the top of second limit block, when the top of first limit block extends into first limit slot, can limit the movement of male die pull rod, when the top of second limit block extends into second limit slot, can limit the movement of male die pull rod, when the bottom of second limit block and the left end of stripper pull rod abut, can limit the movement of stripper pull rod, when male die pull rod slides in first mobile slot, can compress first limit block and make the bottom of first limit block protrude the lower surface of isolation board, when elastic piece slides in first mobile slot, can compress second limit block and make the bottom of second limit block protrude the lower surface of isolation board, when stripper pull rod slides in second mobile slot, can compress and make the top of first limit block and second limit block protrude the upper surface of isolation board.
2. The apparatus of claim 1, wherein, The shell is a cuboid, and the first mobile slot and the second mobile slot are arranged in parallel.
3. The apparatus of claim 2, wherein, The first through -hole and the second through -hole are vertically arranged.
4. The apparatus of claim 1, wherein, The first limit block and the second limit block are elastic balls, and the diameters of the first limit block and the second limit block are greater than the thickness of the isolation board.
5. The apparatus of claim 1, wherein, The end portions of the male die pull rod, the elastic piece and the stripper pull rod are circular arc-shaped.
6. The apparatus of claim 1, wherein, The elastic piece is a spring.