An adjustable mold

By introducing an adjustment component into the mold for locking and releasing, the strength and precision problems caused by the need to machine holes in the mold forming parts are solved, thereby improving the structural strength and precision.

CN224408174UActive Publication Date: 2026-06-26SUZHOU PINHAO MOULD TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU PINHAO MOULD TECH CO LTD
Filing Date
2025-08-05
Publication Date
2026-06-26

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Abstract

The utility model discloses an adjustable mould, including upper die and lower die, and the lower die is between upper die and lower die and has the forming cavity, the lower die includes the bottom plate to setting the forming assembly on the bottom plate, is equipped with the chute on the bottom plate, and the forming assembly is slidably arranged in the chute, and the forming assembly includes first forming part, second forming part and third forming part, and the second forming part is arranged between the first forming part and the third forming part, and the first forming part and the third forming part are connected through the adjusting assembly with the bottom plate respectively, and the adjusting assembly is arranged at both ends of the first forming part and the third forming part respectively. The utility model adopts the adjusting assembly between the forming part and the bottom plate to lock and release, need not process the hole on the forming part, and the influence on the forming part structure is reduced, in addition, through the rotation of locking portion, can conveniently switch between locking state and release state, and the operation is convenient.
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Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to an adjustable mold. Background Technology

[0002] When molding products, the process typically takes place in a molding cavity. The molding cavity (also called a cavity or cavity) is the space inside the mold used to fill molten material (such as plastic, metal, or rubber). This material cools and solidifies to form the desired part. A monolithic cavity is machined from a single piece of metal, and its dimensions cannot be changed. Therefore, to facilitate dimensional adjustment, modular cavities can be used, formed by combining multiple components. The cavity can be adjusted by replacing these components. Existing multi-component modular cavities typically use bolts for locking, requiring the machining of assembly holes, threads, and other features on the components. This reduces the strength of the molded parts and can easily lead to decreased dimensional accuracy of the molding cavity during machining. Utility Model Content

[0003] The purpose of this invention is to solve the technical problem that the forming part of the existing mold needs to be processed with too many holes, which makes it difficult to guarantee the structural strength and precision of the forming part.

[0004] To achieve the objectives of this utility model, the following technical solution is adopted:

[0005] An adjustable mold includes an upper mold and a lower mold, with a forming cavity between the upper mold and the lower mold. The lower mold includes a base plate and a forming component disposed on the base plate. The base plate is provided with a sliding groove, and the forming component is slidably disposed in the sliding groove. The forming component includes a first forming part, a second forming part, and a third forming part. The second forming part is disposed between the first and third forming parts. The first and third forming parts are respectively connected to the base plate through an adjusting component, which is disposed at both ends of the first and third forming parts.

[0006] In some embodiments, the adjustment assembly includes a connecting part, a locking part, and a sleeve. The base plate is provided with an adjustment groove and a plurality of limiting holes disposed below the adjustment groove. The sleeve is disposed on the first forming part and the second forming part. The connecting part passes through the adjustment groove. One end of the connecting part is movably connected to the sleeve, and the other end is connected to the locking part through a rotating shaft. When the locking part is inserted into the limiting hole, it is in a locked state. When the locking part is disengaged from the limiting hole, it is in a released state.

[0007] In some embodiments, the adjusting groove is disposed along a first direction, and the plurality of limiting holes are disposed at intervals along the first direction.

[0008] In some embodiments, the adjusting groove and the limiting hole are disposed on the vertical plate, which is perpendicular to the bottom plate and located at both ends of the bottom plate.

[0009] In some embodiments, the first molding part has a first bonding surface, the second molding part has second bonding surfaces on both sides, and the third molding part has a third bonding surface. The first to third bonding surfaces are arranged along the second direction, and the first and third bonding surfaces are respectively arranged corresponding to the two second bonding surfaces.

[0010] In some embodiments, the first to third molding parts are combined to form a molding cavity.

[0011] In some embodiments, the first molding portion and the third molding portion are the same molding portion and are symmetrically arranged on both sides of the second molding portion.

[0012] In some embodiments, the upper mold is provided with positioning posts, and the first forming part and the third forming part are provided with positioning holes, with the positioning posts and positioning holes being arranged correspondingly.

[0013] In some embodiments, the second forming part is provided with a fixing hole, which is corresponding to the mating hole on the base plate.

[0014] The connecting device provided by this utility model has the following advantages:

[0015] This invention employs an adjustment assembly between the molding part and the base plate for locking and releasing, eliminating the need to machine holes in the molding part and reducing the impact on the molding part's structure. Furthermore, the rotation of the locking part allows for easy switching between the locking and releasing states, making operation convenient. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of an adjustable mold provided in an embodiment of the present utility model.

[0018] Figure 2 This is an exploded view of the lower mold provided in an embodiment of this utility model.

[0019] Figure 3 This is a schematic diagram of the locking part in the released state according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the locking part facing the limiting hole after rotation, provided in an embodiment of this utility model.

[0021] Figure 5 This is a schematic diagram of the locking part in the locked state according to an embodiment of the present utility model.

[0022] Figure 6 This is a schematic diagram of the second molding part with a larger size provided in the embodiment of this utility model.

[0023] In the attached diagram: 1. Upper mold; 2. Lower mold; 3. Molding cavity; 21. Base plate; 22. Slide groove; 4. Molding assembly; 41. First molding part; 42. Second molding part; 43. Third molding part; 5. Adjustment assembly; 51. Connecting part; 52. Locking part; 53. Rotating shaft; 23. Adjustment groove; 24. Limiting hole; 25. Vertical plate; 411. First mating surface; 421. Second mating surface; 431. Third mating surface; 11. Positioning post; 6. Positioning hole; 211. Matching hole. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0025] In this embodiment, "several" and "more than" refer to two or more. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figures 1 to 6As shown, this embodiment provides an adjustable mold, including an upper mold 1 and a lower mold 2, with a molding cavity 3 between the upper mold 1 and the lower mold 2 for molding products. The lower mold 2 includes a base plate 21 and a molding component 4 disposed on the base plate 21. The molding cavity 3 is disposed on the molding component 4. When the upper mold 1 and the lower mold 2 are combined, the upper mold 1 covers the molding component 4, thereby sealing the molding cavity 3. The base plate 21 is provided with a sliding groove 22, in which the molding component 4 is slidably disposed, allowing the molding component 4 to be adjusted in position. The molding component 4 includes a first molding part 41, a second molding part 42, and a third molding part 43. The second molding part 42 is disposed between the first and third molding parts, and the first to third molding parts are combined to form the molding cavity 3. The first and third molding parts are respectively connected to the base plate 21 via an adjustment component 5, which allows the position of the molding parts relative to the base plate 21 to be adjusted. The adjustment component 5 is disposed at both ends of the first and third molding parts. In the above technical solution, when the size of the molding cavity 3 needs to be adjusted, a wider second molding part 42 is replaced, and the first and third molding parts move to both sides and join with the second molding part 42, thereby increasing the size of the molding cavity 3. The upper surfaces of the first to third molding parts all have grooves forming the molding cavity; using a wider second molding part allows for a larger molding cavity. The first and third molding parts can be locked or released via the adjustment component 5 for easy adjustment.

[0028] Furthermore, the adjustment assembly 5 includes a connecting part 51, a locking part 52, and a sleeve 54. The base plate 21 is provided with an adjustment groove 23 and a plurality of limiting holes 24 disposed below the adjustment groove 23. The connecting part 51 passes through the adjustment groove 23, thereby allowing the connecting part 51 to slide within the adjustment groove 23. One end of the connecting part 51 is movably connected to the sleeve 53, and the other end is connected to the locking part 52 via a rotating shaft 53. The connecting part 51 is inserted into the sleeve 53, allowing it to move axially along the sleeve 53. When the first and second forming parts move, they drive the connecting part 51 to slide within the adjustment groove 23. After adjustment, the locking part 52 rotates relative to the connecting part 51, causing the locking part 52 to face the limiting holes 24. Then, the connecting part 51 is pushed within the sleeve 53 towards the limiting holes 24, causing the locking part 52 to insert into the limiting holes 24 and lock. The locking part 52 is L-shaped. When the locking part 52 is inserted into the limiting hole 24, it is in a locked state, and the forming part cannot move. When the locking part 52 is disengaged from the limiting hole 24, it is in a released state, and the forming part can be moved to adjust its position. Specifically, the adjusting groove 23 is arranged along the first direction (X direction), and the plurality of limiting holes 24 are spaced apart along the first direction, thereby forming multiple adjustment positions to facilitate the determination of the adjustment distance. The adjusting groove 23 and the limiting holes 24 are arranged on the vertical plate 25, which is perpendicular to the bottom plate 21 and located at both ends of the bottom plate 21, thereby facilitating the opening of the adjusting groove and the limiting holes.

[0029] Furthermore, the first molding part 41 has a first bonding surface 411, the second molding part 42 has second bonding surfaces 421 on both sides, and the third molding part 43 has a third bonding surface 431. The first to third bonding surfaces are arranged along the second direction, and the first and third bonding surfaces are respectively corresponding to the two second bonding surfaces 421. When the three molding parts are combined, they are bonded to each other through the bonding surfaces. When the second molding part 42 is replaced with a second molding part with a larger width, the shape of its second bonding surface remains unchanged, and it can maintain its bonding with the first and third bonding surfaces. In this embodiment, the first molding part 41 and the third molding part 43 are the same molding part and are symmetrically arranged on both sides of the second molding part 42.

[0030] Furthermore, the upper mold 1 is provided with positioning pins 11, and the first forming part 41 and the third forming part 43 are provided with positioning holes 6. The positioning pins 11 and positioning holes 6 are correspondingly arranged. When the upper mold 1 and the lower mold 2 are closed, the upper mold 1 closes the forming cavity 3, and the positioning pins 11 are inserted into the positioning holes 6 for positioning. Furthermore, in order to enhance the sealing performance, the upper mold 1 and the lower mold 2 can be fixed by bolt tightening or pressurizing. The second forming part 42 is provided with fixing holes 422, which are correspondingly arranged with mating holes 211 on the base plate 21. When the second forming part is fixed, bolts are locked into the fixing holes 422 and the mating holes 211 to fix it.

[0031] In this embodiment, an adjustment component is provided between the molding part and the base plate for locking and releasing, eliminating the need to machine holes in the molding part and reducing the impact on the structure of the molding part; in addition, the rotation of the locking part allows for easy switching between the locking and releasing states, making operation convenient.

[0032] The technical principles of this utility model have been described above in conjunction with specific embodiments. However, it should be noted that these descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, other specific embodiments or equivalent substitutions of this utility model that can be conceived by those skilled in the art without creative effort will all fall within the scope of protection of this utility model.

Claims

1. An adjustable mold, characterized in that, The device includes an upper mold and a lower mold, with a molding cavity between the upper mold and the lower mold. The lower mold includes a base plate and a molding assembly disposed on the base plate. The base plate is provided with a sliding groove, and the molding assembly is slidably disposed in the sliding groove. The molding assembly includes a first molding part, a second molding part, and a third molding part. The second molding part is disposed between the first and third molding parts. The first and third molding parts are respectively connected to the base plate through an adjusting assembly, which is disposed at both ends of the first and third molding parts.

2. The adjustable mold according to claim 1, characterized in that, The adjustment assembly includes a connecting part, a locking part, and a sleeve. The base plate is provided with an adjustment groove and a plurality of limiting holes provided below the adjustment groove. The sleeve is provided on the first forming part and the second forming part. The connecting part passes through the adjustment groove. One end of the connecting part is movably connected to the sleeve, and the other end is connected to the locking part through a rotating shaft. When the locking part is inserted into the limiting hole, it is in a locked state. When the locking part is disengaged from the limiting hole, it is in a released state.

3. The adjustable mold according to claim 2, characterized in that, The adjusting groove is arranged along the first direction, and the plurality of limiting holes are arranged at intervals along the first direction.

4. The adjustable mold according to claim 3, characterized in that, The adjustment groove and the limiting hole are set on the vertical plate, which is perpendicular to the bottom plate and located at both ends of the bottom plate.

5. The adjustable mold according to claim 1, characterized in that, The first molding part has a first bonding surface, the second molding part has second bonding surfaces on both sides, and the third molding part has a third bonding surface. The first to third bonding surfaces are arranged along the second direction, and the first and third bonding surfaces are respectively arranged corresponding to the two second bonding surfaces.

6. The adjustable mold according to claim 5, characterized in that, The first to third molding parts are combined to form a molding cavity.

7. The adjustable mold according to claim 6, characterized in that, The first molding part and the third molding part are the same molding part and are symmetrically arranged on both sides of the second molding part.

8. The adjustable mold according to claim 1, characterized in that, The upper mold is provided with positioning posts, and the first forming part and the third forming part are provided with positioning holes, with the positioning posts and positioning holes being arranged correspondingly.

9. The adjustable mold according to claim 8, characterized in that, The second forming part is provided with fixing holes, which are corresponding to the mating holes on the base plate.