Die buckling device

Abstract

The utility model discloses a mould buckling device which comprises an upper mould, a lower mould and a buckling structure, the upper mold is provided with an upper open groove which is through up and down, the side wall of the upper open groove is provided with an upper clamping part, the position, corresponding to the upper open groove, of the lower mold is provided with a lower open groove which is through up and down, and the side wall of the lower open groove is provided with a lower clamping part; the buckle structure is provided with an upper clamping hook and a lower clamping hook which protrude out towards the side edge, the upper clamping hook is used for being connected with the upper clamping part in a clamped mode, and the lower clamping hook is used for being connected with the lower clamping part in a clamped mode. The upper mold is provided with a through hole communicated with the upper open groove, or the lower mold is provided with a through hole communicated with the upper open groove, force can be applied to the upper clamping hook or the lower clamping hook through the through hole, so that the upper clamping hook or the lower clamping hook gathers inwards due to elastic deformation after being stressed, force is applied through an opening of the upper open groove or the lower open groove, and the upper clamping hook and the lower clamping hook are clamped. And the buckle structure moves along the upper end or the lower end of the channel formed by the upper open groove and the lower open groove.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold buckle device. Background Art

[0002] Compression molding is a common production process widely used in footwear manufacturing and other industries requiring molding. As consumers' demands for product appearance and functionality continue to rise, compression molding technology is constantly evolving and innovating to accommodate more diverse design needs. This is reflected not only in the materials used but also in changes in mold design.

[0003] Existing molds used in press molding (including upper and lower molds) have the following problems: For thicker fillers (such as foam and expanded materials), they are prone to positional shifting during the molding process, especially during the transition between hot and cold pressing. This shift can lead to inaccurate patterns or textures on the final product, affecting its overall quality and aesthetics. Utility Model Content

[0004] To this end, it is necessary to provide a mold clip device to solve the problem that some thicker fillers (such as foam, foaming materials, etc.) are prone to position displacement during the molding process, affecting the overall quality and aesthetics of the product.

[0005] To achieve the above-mentioned purpose, the present embodiment provides a mold snapping device, comprising an upper mold, a lower mold and a snapping structure;

[0006] The upper mold is provided with an upper slot extending vertically through the upper mold, and an upper clamping portion is provided on a side wall of the upper slot; the lower mold is provided with a lower slot extending vertically through the upper mold at a position corresponding to the upper slot, and a lower clamping portion is provided on a side wall of the lower slot;

[0007] The buckle structure is provided with an upper hook and a lower hook protruding to the side, the upper hook is used to engage with the upper engaging portion, and the lower hook is used to engage with the lower engaging portion;

[0008] The upper mold is provided with a through hole connected to the upper groove, or the lower mold is provided with a through hole connected to the upper groove, and force can be applied to the upper hook or the lower hook through the through hole, so that the upper hook or the lower hook gathers inward due to elastic deformation after being forced, and force is applied through the opening of the upper groove or the lower groove, so that the buckle structure moves along the upper end or lower end of the channel formed by the upper groove or the lower groove.

[0009] Furthermore, a hollow structure is provided in the middle of the upper hook and the lower hook.

[0010] Furthermore, an elastic member is included. The elastic member is provided in the middle hole structure of the lower hook, and the elastic member is used to expand the lower hook outward to restore its original shape.

[0011] Furthermore, the elastic member is a spring.

[0012] Furthermore, the cross-section of the lower hook is in the shape of an inverted cone, and the cross-section of the lower engaging portion is in the shape of an inverted frustum.

[0013] Furthermore, the left side wall of the upper hook is inclined and forms a hook shape with the lower surface of the upper hook, the cross section of the upper clamping portion is a triangle adapted to the hook shape, and the right side walls of the upper hook and the upper slot are both vertical.

[0014] Furthermore, it also includes an unlocking member, which is arranged in the through hole and can slide relative to the through hole.

[0015] Furthermore, the unlocking member is a long strip-shaped button, the axial direction of the through hole is along the left-right direction, and the button can slide left and right along the through hole.

[0016] Different from the existing technology, the above technical solution has the following effects:

[0017] The snap-fit mechanism ensures precise alignment of the upper and lower molds during the molding process, preventing quality issues caused by mold misalignment. Installation and removal of the snap-fit mechanism can be achieved with a simple application of force, significantly simplifying the mold assembly and disassembly process and improving efficiency. Furthermore, this structure prevents the material from expanding due to heat, which could push the upper mold out of the gap and cause secondary hot pressing to shift. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a top view of the mold clip device in this embodiment;

[0019] Figure 2 2 is a cross-sectional view of the upper mold, the lower mold and the unlocking member in this embodiment;

[0020] Figure 3 This is a side view of the buckle structure in this embodiment;

[0021] Figure 4 This is a cross-sectional view of the mold clip device in this embodiment;

[0022] Figure 5 This is a schematic diagram of the embodiment in which the unlocking member applies force to the upper hook, causing the upper hook to elastically deform inward after being subjected to the force, and then the snap structure moves along the lower end of the channel formed by the upper and lower grooves;

[0023] Figure 6This is the second schematic diagram of the embodiment in which the unlocking member applies force to the upper hook, causing the upper hook to gather inward due to elastic deformation after being subjected to the force, and then the snap structure moves along the lower end of the channel formed by the upper and lower grooves.

[0024] Description of reference numerals:

[0025] 1. Upper mold;

[0026] 10. Upper slot; 11. Upper clamping portion;

[0027] 2. Lower mold;

[0028] 20. Lower slot; 21. Lower clamping portion;

[0029] 3. Buckle structure;

[0030] 30. Upper hook; 31. Lower hook;

[0031] 4. Through hole;

[0032] 5. Hollow structure;

[0033] 6. Elastic parts;

[0034] 7. Unlock the parts. DETAILED DESCRIPTION

[0035] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purpose and effects of this application, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application and are therefore only examples and are not intended to limit the scope of protection of this application.

[0036] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0037] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0038] In the description of this application, the term "and / or" is used to describe a logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and both A and B exist. In addition, the character " / " in this document generally indicates that the objects before and after are in a logical "or" relationship.

[0039] In this application, terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, priority or sequence relationship between these entities or operations.

[0040] Without further limitations, in this application, the words "include", "comprise", "have" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those defined elements, but also other elements not explicitly listed, or elements inherent to such process, method or product.

[0041] Consistent with the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceed" are understood to exclude the number itself; expressions such as "above," "below," and "within" are understood to include the number itself. Furthermore, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this manner, such as "multiple groups," "multiple times," etc., unless otherwise specifically defined.

[0042] In the description of the embodiments of the present application, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be understood as a limitation on the embodiments of the present application.

[0043] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms "installed", "connected", "connected", "fixed", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art of the present application, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0044] Hot pressing generally includes nail hot pressing and male and female mold hot pressing, but most of these processes require cold pressing after hot pressing.

[0045] Taking high foaming as an example, in existing multi-layer foaming, in order to achieve better foaming effect and better bonding effect, the concave and convex parts in the mold have a certain depth limit to prevent the depth from being too deep and the foaming failing to reach a certain height and causing collapse. Therefore, there is a certain limit on the mold, and the actual height of the foam is greater than the mold height, which will cause some foaming to puff up. This will push open the upper mold, and subsequent movement may cause the pattern to shift.

[0046] If the material being laminated is relatively thick and has a printed pattern or foam on top, we will repeatedly check the alignment of the printed pattern with the mold during alignment. Once this is confirmed, we will place the mold over the fabric. Once the mold is in place, the thickness of the materials may not fit perfectly between the molds. This can easily cause the material to shift during stacking and hot pressing due to improper handling.

[0047] To do this, see Figures 1 to 6 , this embodiment provides a mold snap-fit device, comprising an upper mold 1, a lower mold 2 and a snap-fit structure 3;

[0048] The upper mold 1 is provided with an upper slot 10 that passes through from top to bottom, and an upper clamping portion 11 is provided on the side wall of the upper slot 10. The lower mold 2 is provided with a lower slot 20 that passes through from top to bottom at a position corresponding to the upper slot 10, and a lower clamping portion 21 is provided on the side wall of the lower slot 20.

[0049] The buckle structure 3 is provided with an upper hook 30 and a lower hook 31 protruding to the side. The upper hook 30 is used to engage with the upper engaging portion 11, and the lower hook 31 is used to engage with the lower engaging portion 21.

[0050] The upper mold 1 is provided with a through hole 4 connected to the upper groove 10, or the lower mold 2 is provided with a through hole 4 connected to the upper groove 10. Force can be applied to the upper hook 30 or the lower hook 31 through the through hole 4, so that the upper hook 30 or the lower hook 31 gathers inward due to elastic deformation after being forced, and force is applied through the opening of the upper groove 10 or the lower groove 20, so that the snap structure 3 moves along the upper end or lower end of the channel formed by the upper groove 10 and the lower groove 20 until it is separated from the lower groove 20 or the upper groove 10.

[0051] See also Figure 3 The buckle structure 3 can be made of a plastic material with a certain elasticity as the main component of the buckle structure 3. Such plastic materials generally have good toughness, wear resistance and a certain elastic recovery ability. Of course, the buckle structure 3 can also be made of a metal material with a certain elasticity.

[0052] If the through hole 4 is on one side of the upper slot 10, the force is applied to the upper hook 30 through the through hole 4 to release the clamping state. Figure 5 As shown, the buckle structure 3 then moves (downwards) along the lower end of the channel formed by the upper slot 10 and the lower slot 20. Figure 6 If the through hole 4 is on one side of the lower slot 20, that is, force is applied to the downward hook 31 through the through hole 4 to release the engaged state, and then the snap structure 3 moves (upward) along the upper slot 10 and the lower slot 20 to form the upper end of the channel.

[0053] See also Figures 4 to 6 , insert the snap structure 3 into the lower slot 20, the lower hook 31 contacts the lower clamping part 21 to achieve preliminary clamping, align the upper mold 1 and the lower mold 2 and then assemble them, the upper slot 10 and the lower slot 20 are aligned up and down, and the upper mold 1 covers the snap structure 3, the upper hook 30 contacts the upper clamping part 11 to achieve final clamping, so that the upper mold 1 and the lower mold 2 are stably clamped together by the snap structure 3. When disassembling, force is applied to the upper hook 30 through the through hole 4 to cause it to elastically deform, and the upper hook 30 gathers inward, reducing the contact area between the upper hook 30 and the clamping part. Force is applied downward through the upper slot 10 to push the upper hook 30, allowing the snap structure 3 to move (downward) along the lower end of the channel formed by the upper slot 10 and the lower slot 20. During this process, the upper hook 30 can pass through the narrower part below due to its inward gathering until it is released from the clamping with the upper mold 1, so that the upper mold 1 and the lower mold 2 can be separated.

[0054] The snap-fit structure 3 ensures precise alignment of the upper and lower molds 2 during the molding process, avoiding quality issues caused by mold position deviation. The snap-fit structure 3 can be installed and removed with a simple force application, significantly simplifying the mold assembly and disassembly process and improving efficiency. Furthermore, this structure prevents the material from directly pushing the upper mold 1 out of the gap when the slurry expands due to heat, causing secondary hot pressing to shift.

[0055] See also Figure 3 In this embodiment, both the upper hook 30 and the lower hook 31 have a hollow structure 5 in their central portions. This hollow structure 5 optimizes the elastic deformation capability of the snap structure 3, ensuring the effectiveness and durability of the snap connection. Because the upper hook 30 has a hollow structure 5, the hollow portion can more easily elastically deform when subjected to external forces, and the entire structure tends to be more stable. The hollow structure 5 of the lower hook 31 also achieves the same effect; refer to the hollow structure 5 of the upper hook 30 for details.

[0056] See also Figure 3 In this embodiment, the mold clip device also includes an elastic member 6. The elastic member 6 is provided in the central hole structure of the lower hook 31. The elastic member 6 is used to expand the lower hook 31 outward to restore its original shape. That is, the design of the elastic member 6 is intended to ensure that the lower hook 31 can quickly restore its original shape after the external force is removed.

[0057] See also Figure 3 In this embodiment, the elastic member 6 is a spring. The spring has good elasticity and can maintain its elastic properties even after repeated use. The two ends of the spring can be fixed on the two side walls of the hollow structure 5. Figure 3 As shown, there is a spring in the middle of the hollow structure 5 of the lower hook 31, which is at the largest protruding part. This structure exceeds most of the structural width of the buckle structure. When the hook is subjected to force, the spring compresses due to elastic deformation, and extends after the external force is removed to better push the hook outward.

[0058] In some embodiments, the elastic member 6 may be a rubber elastic block, which stores elastic potential energy after being compressed by a force and can return to its original shape after the external force is removed.

[0059] See also Figure 2 and Figure 3 In this embodiment, the cross-section of the lower hook 31 is an inverted cone, while the cross-section of the lower engaging portion 21 is an inverted frustum. The lower slot 20 is narrow above the lower engaging portion 21, while the upper portion of the lower engaging portion 21 is relatively wide. This structure allows the snap structure 3 to move (downward) along the lower end of the channel formed by the upper slot 10 and the lower slot 20. In some embodiments, the lower hook 31 only needs to have a hook-shaped structure on either the left or right side.

[0060] See also Figure 2 and Figure 3 In this embodiment, the left sidewall of the upper hook 30 is inclined, forming a hook shape with the lower surface of the upper hook 30. The cross-section of the upper engaging portion 11 is triangular to match the hook shape. The right sidewalls of the upper hook 30 and the upper slot 10 are both vertical. If the through hole 4 is on one side of the upper slot 10, it is correspondingly located on the left side of the upper slot 10. Force is applied to the hook shape on the left side of the upper hook 30 through the through hole 4, causing it to elastically deform. The right side of the upper hook 30 is vertical, facilitating its upward and downward sliding within the upper slot 10.

[0061] Figure 3 As shown, the buckle structure 3 is large at both ends and small in the middle. The two ends correspond to the upper hook 30 and the lower hook 31 respectively. The cross section of the upper hook 30 is a right-angled trapezoid (the hypotenuse is on the left), and the cross section of the lower hook 31 is an inverted step structure. Correspondingly, the cross-sectional shapes of the upper slot 10 and the lower slot 20 are adapted to the cross-sectional shape of the buckle structure 3. Figure 2 shown.

[0062] See also Figure 3 In this embodiment, the mold snap-fit device further includes an unlocking member 7, which is disposed in the through hole 4 and can slide relative to the through hole 4. The unlocking member 7 is usually made of a material with a certain rigidity, such as metal or hard plastic. An external force is applied to the upper hook 30 or the lower hook 31 through the unlocking member 7 in the through hole 4, causing it to elastically deform and gather inward, thereby reducing the contact area between the hook and the clamping part. The design of the unlocking member 7 makes it easier for the hook structure to respond to external force, thereby improving the convenience of the installation and disassembly process. In some embodiments, the upper hook 30 or the lower hook 31 can be touched by the user's fingers to achieve the purpose of unlocking.

[0063] See also Figure 2 In this embodiment, the unlocking member 7 is a long strip-shaped button, the axial direction of the through hole 4 is along the left and right direction, and the button can slide left and right along the through hole 4. Figure 2 As shown, the unlocking member 7 is located in the through hole 4 on the left side of the upper hook 30. By pressing the left side of the upper hook 30 to the right by the unlocking member 7, the upper hook 30 can be gathered inward.

[0064] In this embodiment, a protrusion can be provided on the side wall where the button extends into the through hole 4, and a limiting groove is provided at the position of the protrusion corresponding to the through hole 4. The protrusion slides in the limiting groove, and the limiting groove limits the protrusion from falling out, thereby preventing the button from falling out of the through hole 4.

[0065] In this embodiment, the connection surface between the upper mold 1 and the lower mold 2 is as follows:

[0066] Fabric application: If both the upper mold 1 and the lower mold 2 are used to heat-press a piece of fabric, the concave-convex structure of the upper mold 1 cooperates with the corresponding structure of the lower mold 2 to form the desired pattern or shape.

[0067] Foaming application: If the filling material between the upper mold 1 and the lower mold 2 is foam, the lower mold 2 is usually flat, while the upper mold 1 is provided with a cavity with a concave-convex structure to form a specific concave-convex effect on the fabric.

[0068] In this embodiment, the buckle device has the following beneficial effects:

[0069] The snap-fit mechanism prevents the mold from shifting during movement, hot pressing, or cold pressing. This structure also prevents the material from expanding due to heat, which could push the upper mold out of the gap and cause secondary hot pressing to shift. This decoupling secures the upper and lower molds and the filling material between them, reducing the risk of mold shifting during movement and enhancing the convex-concave feel after hot pressing.

[0070] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present utility model. Therefore, based on the innovative concept of the present utility model, changes and modifications to the embodiments described herein, or equivalent structural or process transformations made using the contents of the present utility model specification and drawings, and direct or indirect application of the above technical solutions to other related technical fields are all included in the scope of protection of the present utility model patent.

Claims

1. A mold clip device, characterized in that: It includes an upper mold, a lower mold and a snap-fit structure; The upper mold is provided with an upper slot extending vertically through the upper mold, and an upper clamping portion is provided on a side wall of the upper slot; the lower mold is provided with a lower slot extending vertically through the upper mold at a position corresponding to the upper slot, and a lower clamping portion is provided on a side wall of the lower slot; The buckle structure is provided with an upper hook and a lower hook protruding to the side, the upper hook is used to engage with the upper engaging portion, and the lower hook is used to engage with the lower engaging portion; The upper mold is provided with a through hole connected to the upper groove, or the lower mold is provided with a through hole connected to the upper groove, and force can be applied to the upper hook or the lower hook through the through hole, so that the upper hook or the lower hook gathers inward due to elastic deformation after being forced, and force is applied through the opening of the upper groove or the lower groove, so that the buckle structure moves along the upper end or lower end of the channel formed by the upper groove or the lower groove.

2. The mold clip device according to claim 1, characterized in that: The middle parts of the upper hook and the lower hook are both provided with a hollow structure.

3. The mold clip device according to claim 2, characterized in that: It also includes an elastic member. The elastic member is arranged in the middle hole structure of the lower hook, and the elastic member is used to expand the lower hook outward to restore its original shape.

4. The mold clip device according to claim 3, characterized in that: The elastic member is a spring.

5. The mold clip device according to claim 1, characterized in that: The cross section of the lower hook is in the shape of an inverted cone, and the cross section of the lower clamping portion is in the shape of an inverted frustum.

6. The mold clip device according to claim 1, characterized in that: The left side wall of the upper hook is inclined and forms a hook shape with the lower surface of the upper hook. The cross section of the upper clamping portion is a triangle adapted to the hook shape. The right side walls of the upper hook and the upper slot are both vertical.

7. The mold clip device according to any one of claims 1 to 6, characterized in that: It also includes an unlocking piece, which is arranged in the through hole and can slide relative to the through hole.

8. The mold clip device according to claim 7, characterized in that: The unlocking member is a long strip-shaped button, the axial direction of the through hole is along the left and right direction, and the button can slide left and right along the through hole.

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