Multi-layer mold structure and vulcanizing machine

Abstract

The utility model relates to a multi-layer mold structure and a vulcanizing machine, and belongs to the field of vulcanizing molds. An upper mold plate is arranged on a lower mold plate through at least two lifting columns; the middle mold plate is embedded in the lower mold plate; a mounting groove is formed in the lower template and is used for accommodating the middle template; at least two locking assemblies are arranged on the lower die plate, symmetrically arranged on the two sides of the lower die plate in the length direction or the width direction and used for limiting the middle die plate embedded in the lower die plate. The side, close to the center of the lower die plate, of the locking assembly is aligned with the periphery of the upper die plate in the vertical direction. According to the multi-layer mold structure and the vulcanizing machine in the preferable embodiment, the overall structure is simple, operation is convenient, the middle mold plate and the lower mold plate can be stably locked together, meanwhile, the upper mold plate can be connected in an abutting mode, stability in the mold closing process is guaranteed, and the multi-layer mold structure and the vulcanizing machine have good use value and application prospects.

Description

Technical Field

[0001] This utility model relates to the field of vulcanization mold technology, specifically to a multi-layer mold structure and a vulcanizing machine. Background Technology

[0002] Vulcanization is the final and most important processing step in rubber product manufacturing. Through a series of complex chemical reactions, it transforms rubber into a highly elastic or highly rigid cross-linked rubber, thereby giving it the corresponding mechanical and chemical properties. Unvulcanized rubber has a linear macromolecular structure. When subjected to external forces, these macromolecular structures shift, resulting in significant deformation of the rubber. After vulcanization, the molecular structure forms a network, restricting the movement of macromolecules. This manifests as vulcanized rubber having better tensile and elastic strength than unvulcanized rubber. Vulcanization of rubber products often requires the use of molds.

[0003] Existing molds often require manual installation of baffles to limit the movement of the middle mold plate during use, preventing the upper mold plate from moving the middle mold plate when the mold is opened. However, this requires manual installation and removal of the baffles every time the rubber product is vulcanized, resulting in low vulcanization efficiency and a high risk of leakage and product damage. Therefore, a multi-layer mold structure and vulcanizing machine are proposed to solve the above technical problems. Utility Model Content

[0004] In view of one or more of the above-mentioned defects or improvement needs of the prior art, this utility model provides a multi-layer mold structure and vulcanizing machine, which has the advantage of improving vulcanization efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer mold structure, including a lower mold plate;

[0006] Upper template, wherein at least two lifting columns are mounted on the lower template;

[0007] The middle template is embedded within the lower template;

[0008] The lower template has an installation groove for accommodating the middle template; and at least two locking components are provided on the lower template, which are symmetrically arranged on both sides of the lower template in the length or width direction, for limiting the middle template embedded in the lower template.

[0009] The locking component is vertically aligned with the outer periphery of the upper template on the side closest to the center of the lower template.

[0010] As a further improvement of this utility model, the locking component includes a spring clip, and a connecting groove is provided on the lower template. The spring clip is assembled in the connecting groove, and the connecting groove communicates with the mounting groove.

[0011] Corresponding to the spring buckle, an installation hole is provided on the middle template, and the spring buckle passes through the installation hole vertically.

[0012] As a further improvement of this utility model, the locking component includes a mounting block disposed in the connecting groove, and a spring clip is assembled in the mounting block.

[0013] As a further improvement of this utility model, the spring buckle has a groove on the side near the center of the lower template; after the middle template is embedded in the lower template, its outer periphery is limited by the groove of the spring buckle.

[0014] As a further improvement of this utility model, the top of the spring buckle on the side away from the center of the lower template is arc-shaped.

[0015] As a further improvement of this utility model, a top block is provided at the bottom of the upper template and at the position corresponding to the spring buckle, for squeezing the spring buckle when the upper template and the lower template are closed.

[0016] As a further improvement of this utility model, there are four locking components, which are symmetrically arranged in pairs on both sides of the lower template in the length and width directions.

[0017] Furthermore, corresponding to the four locking components, four connection slots are provided on the upper template.

[0018] As a further improvement of this utility model, the upper template is provided with a plurality of clearance grooves, and the size and shape of the clearance grooves match the size and shape of the spring buckle.

[0019] As a further improvement of this utility model, the locking component includes two locking blocks, which are spaced apart and disposed on the same side of the lower template, and through holes are formed on the locking blocks;

[0020] It also includes a locking rod, which passes through the through holes in the two locking blocks in sequence; and after the locking rod is assembled between the two locking blocks, its bottom fits against the top of the middle template.

[0021] Based on this, the present invention also provides a vulcanizing machine, which includes the multi-layer mold structure described above.

[0022] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:

[0023] 1. The multi-layer mold structure in the preferred embodiment of this utility model, through the setting of the locking component, enables the middle mold plate to be stably locked on the lower mold plate when the product is molded. At the same time, when the upper mold plate and the lower mold plate are in contact, the locking component abuts against the upper mold plate, thereby preventing the upper mold plate from driving the middle mold plate to move when the product is molded, which would cause damage to the mold or breakage of the product.

[0024] 2. The multi-layer mold structure and vulcanizing machine in the preferred embodiment of this utility model have a simple overall structure and are easy to operate. They can not only stably lock the middle mold and the lower mold together, but also abut against the upper mold, ensuring stability during the mold closing process. They can also prevent the upper mold from driving the middle mold during demolding, and have good use value and application prospects. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure in the preferred embodiment 1 of this utility model;

[0026] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the lower template in the preferred embodiment 1 of this utility model;

[0027] Figure 3 This is a three-dimensional structural diagram of the locking component in the preferred embodiment 1 of this utility model;

[0028] Figure 4 This is a top view of the locking component in the preferred embodiment 2 of this utility model.

[0029] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1, lower template; 11, connecting groove; 12, mounting groove; 2, upper template; 21, lifting column; 22, top block; 3, middle template; 31, mounting hole; 4, locking assembly; 41, mounting block; 42, spring clip; 43, locking block; 44, locking rod. Detailed Implementation

[0030] 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.

[0031] Example 1:

[0032] like Figures 1-4As shown, a multi-layer mold structure includes a lower template 1; an upper template 2, which is mounted on the lower template 1 via at least two lifting columns 21; and a middle template 3, which is embedded in the lower template 1. The lower template 1 has an installation groove 12 for accommodating the middle template 3. At least two locking components 4 are provided on the lower template 1, which are symmetrically arranged on both sides of the lower template 1 in the length or width direction, for limiting the middle template 3 embedded in the lower template 1. The side of the locking component 4 closest to the center of the lower template 1 is vertically aligned with the outer periphery of the upper template 2.

[0033] This embodiment presents a multi-layer mold structure of the present invention. The product to be vulcanized is placed into the middle mold plate 3, which is then placed on the lower mold plate 1. A hydraulic press drives the upper mold plate 2 downwards, causing the upper mold plate 2 and the upper surface of the middle mold plate 3 to contact each other. As the upper mold plate 2 moves downwards, it presses against the locking component 4, thus limiting the position of the middle mold plate 3. After vulcanization, the hydraulic press resets the upper mold plate 2. Because the vulcanized product experiences significant friction during mold opening, the middle mold plate 3, limited by the locking component 4, is not moved by the upper mold plate 2. This prevents the upper mold plate 2 from moving the middle mold plate 3 during mold opening, thus avoiding damage to the mold or the product. It also reduces the time required for manually placing the barrier bars, improving vulcanization efficiency and product quality.

[0034] Furthermore, such as Figure 2 As shown, the locking component 4 in the preferred embodiment of this utility model includes a spring clip 42, and corresponding to the spring clip 42, at least two connecting grooves 11 are provided on the lower template 1, and the spring clip 42 is assembled in the connecting groove 11; and the connecting groove 11 communicates with the mounting groove 12. Preferably, the number of connecting grooves 11 is four, and they are evenly distributed on the outer side of the lower template 1.

[0035] In this embodiment, several preferred embodiments of the connecting groove 11 are given. The locking component 4 can be installed through the connecting groove 11. The vertical height occupied by the locking component 4 is reduced by the recessed assembly design, so that the locking component 4 can better limit the middle template 3 after the middle template 3 is embedded in the lower template 1.

[0036] More in detail, such as Figure 1 As shown, in the preferred embodiment of this utility model, the middle template 3 includes a mounting hole 31, which corresponds to the spring clip 42. After the middle template 3 is embedded in the lower template 1, the spring clip 42 can penetrate vertically through the mounting hole 31. Meanwhile, the locking assembly 4 also includes a mounting block 41, which is fitted into the connecting groove 11, and the spring clip 42 is fitted into the mounting block 41.

[0037] Preferred, such as Figure 3 As shown in the preferred embodiment of this utility model, the spring clip 42 has a groove on the side near the center of the lower template 1. This allows the outer periphery of the middle template 3 to be limited by the groove of the spring clip 42 after it is embedded in the lower template 1.

[0038] More preferably, the top of the spring clip 42 on the side away from the center of the lower template 1 is arc-shaped.

[0039] Furthermore, such as Figure 2 As shown in the preferred embodiment of the present invention, the multi-layer mold structure includes at least two top blocks 22, which are spaced apart on the upper mold plate 2 and corresponding to the spring clips 42. This allows the top blocks 22 to vertically press the arc-shaped portion at the top of the spring clips 42 during the mold closing process between the upper mold plate 2 and the lower mold plate 1, thereby causing the spring clips 42 to rotate. This ensures that the spring clips 42 will not rotate during subsequent vulcanization molding. Only after the upper mold plate 2 and the lower mold plate 1 are released from mold closing can the spring clips 42 rotate back on their own, releasing the restriction between the middle mold plate 3 and the lower mold plate 1.

[0040] Furthermore, multiple clearance grooves are provided on the upper mold plate, and the size and shape of the clearance grooves match the size and shape of the spring clip 42. This allows the portion of the spring clip 42 protruding from the middle mold plate 3 to be accommodated in the clearance groove after the upper mold plate 2 and the lower mold plate 1 are closed, thereby enabling the upper mold plate 2 and the lower mold plate 1 to fit together more fully and ensuring the sealing of the mold cavity.

[0041] In a specific embodiment, the preferred embodiment of the present invention has four locking components 4, which are symmetrically arranged in pairs on both sides of the lower template 1 in the length and width directions; and corresponding to the four locking components 4, four connecting grooves 11 are provided on the lower template 1.

[0042] The working principle of the preferred embodiment 1 of this utility model is as follows: First, the operator places the middle template 3 in the mounting groove 12, ensuring that the two locking components 4 are located in the mounting holes 31. Then, the hydraulic press drives the top block 22 on the upper template 2 to move downwards. The downward-moving top block 22 compresses the spring clip 42, causing the spring clip 42 to rotate within the mounting block 41, thereby limiting the middle template 3. Simultaneously, after the upper template 2 and lower template 1 are closed, the spring clip 42 will enter the clearance groove to prevent it from affecting the closing of the upper template 2 and lower template 1. When the hydraulic press drives the upper template 2 to reset, the spring clip 42 will reset, allowing the middle template 3 to be normally removed from the mounting groove 12.

[0043] Example 2:

[0044] like Figure 4 As shown, the difference between this embodiment and embodiment 1 is that the locking component 4 includes two locking blocks 43, which are spaced apart on the same side of the lower template 1 and have through holes formed in them; it also includes a locking rod 44, which passes through the through holes in the two locking blocks 43 in sequence; and after the locking rod 44 is assembled between the two locking blocks 43, its bottom is in contact with the top of the middle template 3.

[0045] Of course, in actual use, the contents of Embodiment 1 and Embodiment 2 can be combined to achieve a more stable limiting effect on the middle mold.

[0046] Based on this, the present invention also provides a vulcanizing machine, which includes the multi-layer mold structure in the above preferred embodiment.

[0047] In general, the multi-layer mold structure in the preferred embodiment of this utility model, through the setting of locking components, enables the middle mold plate to be stably locked on the lower mold plate when the product is molded. At the same time, when the upper mold plate contacts the lower mold plate, it abuts against the upper mold plate, thereby preventing the upper mold plate from driving the middle mold plate to move when the product is molded, which would cause damage to the mold or breakage of the product.

[0048] The multi-layer mold structure and vulcanizing machine in the preferred embodiment of this utility model have a simple overall structure and are easy to operate. They can not only stably lock the middle mold and the lower mold together, but also abut against the upper mold, ensuring stability during the mold closing process. Furthermore, they can prevent the upper mold from driving the middle mold during demolding, and have good use value and application prospects.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-layer mold structure, characterized in that, Includes the following template (1); Upper template (2), wherein at least two lifting columns (21) are provided on the lower template (1); The middle template (3) is embedded in the lower template (1); The lower template (1) is provided with an installation groove (12) for accommodating the middle template (3); and at least two locking components (4) are provided on the lower template (1), the at least two locking components (4) are symmetrically arranged on both sides of the lower template (1) in the length or width direction, for limiting the middle template (3) embedded in the lower template (1); The locking component (4) is vertically aligned with the outer periphery of the upper template (2) on the side closest to the center of the lower template (1).

2. The multi-layer mold structure according to claim 1, characterized in that, The locking component (4) includes a spring buckle (42), and a connecting groove (11) is provided on the lower template (1). The spring buckle (42) is assembled in the connecting groove (11), and the connecting groove (11) is connected to the mounting groove (12). Corresponding to the spring buckle (42), an installation hole (31) is provided on the middle template (3), and the spring buckle (42) passes through the installation hole (31) vertically.

3. The multi-layer mold structure according to claim 2, characterized in that, The locking component (4) includes a mounting block (41) disposed in the connecting groove (11), and a spring clip (42) is fitted into the mounting block (41).

4. The multi-layer mold structure according to claim 3, characterized in that, The spring buckle (42) has a groove on one side near the center of the lower template (1); after the middle template (3) is embedded in the lower template (1), its outer periphery is limited by the groove of the spring buckle (42).

5. The multi-layer mold structure according to claim 4, characterized in that, The top of the spring clip (42) on the side away from the center of the lower template (1) is arc-shaped.

6. The multi-layer mold structure according to claim 5, characterized in that, A top block (22) is provided at the bottom of the upper template (2) and at the position corresponding to the spring buckle (42), for pressing the spring buckle (42) when the upper template (2) and the lower template (1) are closed.

7. The multi-layer mold structure according to any one of claims 2 to 6, characterized in that, There are four locking components (4), which are symmetrically arranged in pairs on both sides of the lower template (1) in the length and width directions; And corresponding to the four locking components (4), four connecting slots (11) are provided on the upper template (2).

8. The multi-layer mold structure according to claim 2, characterized in that, The upper template (2) has multiple clearance slots, and the size and shape of the clearance slots match the size and shape of the spring buckle.

9. The multi-layer mold structure according to claim 1, characterized in that, The locking component (4) includes two locking blocks (43), which are spaced apart on the same side of the lower template (1) and have through holes formed on them. It also includes a locking rod (44), which passes through the through holes on the two locking blocks (43) in sequence; and after the locking rod (44) is assembled between the two locking blocks (43), its bottom is in contact with the top of the middle template (3).

10. A vulcanizing machine, characterized in that, It includes the multi-layer mold structure as described in any one of claims 1 to 9.

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