A sole mold temperature uniform heating plate

Abstract

The utility model discloses a sole mould temperature even heating plate belongs to injection mould technical field. Including lower die holder, upper die holder, base, lower die holder and upper die holder can mutually adhere, and the inside of base has heating cavity, and the bottom surface of heating cavity is installed with heating part, and the heating part is connected by a plurality of U -shaped heating wire first and last, and heating part and heating cavity are equal long, and the top surface of base is embedded with a plurality of heating strips, and the top surface of heating strip adheres with heat -conducting silica gel, and a plurality of heating strips evenly distribute along the long side of base, and heat -conducting silica gel and lower die holder are pasted, and the outside of base is installed with the positioning sleeve, and the positioning sleeve and lower die holder are engaged, and the purpose that can reach even heating sole mould through the use of a plurality of heating strips and heat -conducting silica gel, thereby guaranteeing the yield of product.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a uniformly heated plate for shoe sole molds. Background Technology

[0002] In the shoe sole production process, heating the sole mold is a crucial step. Currently common shoe sole mold heating methods have several problems, making it difficult to ensure uniform heating of the mold. For example, traditional heating plates typically only have simple heating wires inside the heating plate, and these wires are distributed in a single manner. This results in significant differences in heating between different parts of the mold and the areas in contact with the heating plate when heating the sole mold. When the mold size is large, the parts farther away from the heating wires heat up slowly, with a significantly lower temperature than the parts closer to the heating wires. This creates a significant temperature gradient in the shoe sole mold during heating, making it impossible to achieve uniform heating.

[0003] Furthermore, some existing heating plates do not adequately consider the uniformity of heat conduction in their structural design. For example, the material of the heating plate may have uneven thermal conductivity, and the contact method between the heating plate and the sole mold may be unreasonable, easily resulting in gaps between them. This leads to heat loss and uneven distribution during the transfer process. These problems ultimately affect the quality of the sole molding, causing inconsistencies in the physical properties of different parts of the sole, such as differences in hardness and elasticity, thus reducing the product yield. Utility Model Content

[0004] The purpose of this invention is to provide a uniformly heated plate for shoe sole molds to solve the problems mentioned in the background art.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] A uniformly heated plate for shoe sole molds includes a lower mold base, an upper mold base, and a base. The lower and upper mold bases are mutually fitted. The base has a heating cavity inside, and a heating element is installed on the bottom surface of the heating cavity. The heating element is composed of several U-shaped heating wires connected end to end, and the heating element and the heating cavity are of equal length. Several heating strips are embedded on the top surface of the base, and thermally conductive silicone is attached to the top surface of the heating strips. The heating strips are evenly distributed along the long side of the base. The thermally conductive silicone is attached to the lower mold base. A positioning sleeve is installed on the outer side of the base and engages with the lower mold base. The heating element uses U-shaped heating wires connected end to end to increase the heating area. Combined with the evenly distributed heating strips, heat is evenly transferred to the lower mold base through the thermally conductive silicone, avoiding local overheating or uneven temperature rise. The engagement of the positioning sleeve with the lower mold base ensures close contact between the mold and the heating strips during mold installation, improving heat conduction efficiency, ensuring uniform temperature of the shoe sole mold, and thus improving product yield.

[0007] Furthermore, the heating strip and the lower mold base are of equal width, the thermally conductive silicone is of equal width, and the heating strips at both ends extend beyond the bottom surface of the lower mold base. The equal width of the heating strips and the lower mold base ensures that the bottom surface of the lower mold base fully covers the heating area. The heating strips at both ends extend beyond the bottom surface of the lower mold base to compensate for heat loss at the edges, prevent the mold edge temperature from being too low, and further improve temperature uniformity.

[0008] Furthermore, a sealing ring is installed on the inner wall of the positioning sleeve. The sealing ring and the lower mold base are interference-fitted. The interference fit between the sealing ring and the lower mold base enhances the sealing performance between the positioning sleeve and the lower mold base, prevents external cold air from entering and affecting the heating effect, and avoids heat leakage from the heating cavity, thereby improving energy utilization.

[0009] Furthermore, the heating strip is made of thermally conductive metal. Heating strips made of thermally conductive metal have good thermal conductivity, which can quickly absorb the heat of the heating element and spread it evenly, reduce the heat conduction delay, and ensure that the lower mold base heats up quickly and at a uniform temperature.

[0010] Furthermore, the side of the base is provided with a wire groove that communicates with the heating cavity. The wire groove provides a routing channel for the wires of the heating element, which facilitates circuit connection.

[0011] Furthermore, the top surface of the base has a number of fixing grooves equal to the number of heating strips. The fixing grooves are connected to the heating cavity. The heating strips are fixed in the fixing grooves by thermally conductive adhesive, and the bottom surface of the heating strips is located in the heating cavity. The fixing grooves position the heating strips, and the thermally conductive adhesive fixes and enhances the heat conduction efficiency, so that the bottom surface of the heating strips directly contacts the heating cavity and quickly absorbs heat. The heating strips are installed securely to avoid displacement that would affect the uniformity of heat conduction.

[0012] Furthermore, both the lower mold base and the upper mold base have mold cavities. An injection port is installed on the top surface of the upper mold base. The injection port is connected to the mold cavity, which is used to form the shoe sole. The injection port facilitates the injection of molten raw materials. Combined with the uniformly heated lower mold base, this ensures that the raw materials are uniformly solidified in the mold cavity, thereby improving the forming quality of the shoe sole.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the shoe sole mold has a uniform heating plate, and the heating element adopts U-shaped heating wires connected end to end to increase the heating area. Combined with the evenly distributed heating strips, the heat is evenly transferred to the lower mold base through the thermally conductive silicone, avoiding local overheating or uneven temperature rise; the positioning sleeve engages with the lower mold base to ensure that the mold is in close contact with the heating strips during installation, improves the heat conduction efficiency, ensures uniform temperature of the shoe sole mold, and thus improves the product yield. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the uniform temperature heating plate for shoe sole mold disclosed in an embodiment of the present utility model;

[0015] Figure 2 This is an exploded structural diagram of the uniform temperature heating plate for the shoe sole mold disclosed in this embodiment of the utility model;

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of structure A in the middle;

[0017] Figure 4 for Figure 2 Enlarged schematic diagram of structure B in the middle;

[0018] Figure 5 This is a cross-sectional schematic diagram of the uniform temperature heating plate for shoe sole mold disclosed in an embodiment of this utility model.

[0019] In the diagram: 1. Lower mold base; 2. Upper mold base; 3. Injection port; 4. Base; 5. Positioning sleeve; 6. Mold cavity; 7. Groove; 8. Heating strip; 9. Thermally conductive silicone; 10. Sealing ring; 11. Heating element; 12. Fixing groove. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-5 This utility model provides a technical solution: a uniformly heated plate for shoe sole molds, comprising a lower mold base 1, an upper mold base 2, and a base 4. The lower mold base 1 and the upper mold base 2 can be fitted together. The base 4 has a heating cavity inside, and a heating element 11 is installed on the bottom surface of the heating cavity. The heating element 11 is formed by connecting several U-shaped heating wires end to end. The heating element 11 and the heating cavity are of equal length. Several heating strips 8 are embedded on the top surface of the base 4, and thermally conductive silicone 9 is attached to the top surface of the heating strips 8. The heating strips 8 are evenly distributed along the long side of the base 4. The base 4 is attached to the lower mold base 1 with thermally conductive silicone 9. A positioning sleeve 5 is installed on the outside of the base 4. The positioning sleeve 5 and the lower mold base 1 are engaged. When the heating element 11 is powered on, it generates heat. The heat is transferred to the heating strip 8 through the heating cavity. The heating strip 8 then conducts the heat to the lower mold base 1 through the thermally conductive silicone 9. Since the heating strip 8 is evenly distributed along the long side of the base 4 and the thermally conductive silicone 9 fills the gap between the lower mold base 1 and the heating strip 8, the thermal resistance is reduced, so that the lower mold base 1 is heated evenly. The positioning sleeve 5 engages with the lower mold base 1 to prevent the mold from shifting and to ensure stable heat conduction.

[0022] As an embodiment of this utility model, the heating strip 8 and the lower mold base 1 are of equal width, the thermally conductive silicone 9 and the heating strip 8 are of equal width, and the heating strip 8 at both ends extends beyond the bottom surface of the lower mold base 1. The heating strip 8 covers the entire bottom surface width of the lower mold base 1, and the heat is conducted laterally without dead angles. The extended portions of the heating strip 8 at both ends provide additional heating to the edge of the mold, balancing the temperature difference between the edge and the center, so that the overall temperature of the lower mold base 1 is consistent.

[0023] As an embodiment of this utility model, a sealing ring 10 is further installed on the inner wall of the positioning sleeve 5. The sealing ring 10 and the lower mold base 1 are interference-fitted. When the lower mold base 1 is inserted into the positioning sleeve 5, the sealing ring 10 is deformed by pressure, fills the gap, forms a sealing structure, blocks the heat exchange between the external environment and the heating area, and maintains the temperature stability inside the heating cavity.

[0024] As an embodiment of this utility model, the heating strip 8 is further made of thermally conductive metal. The heat generated by the heating element 11 is transferred to the heating strip 8 through the heating cavity. The thermally conductive metal conducts heat rapidly, making the overall temperature of the heating strip 8 uniform. Then, the heat is evenly transferred to the lower mold base 1 through the thermally conductive silicone 9.

[0025] As an embodiment of this utility model, the base 4 is further provided with a wire groove 7 that communicates with the heating chamber on its side. The wire of the heating element 11 is led out from the wire groove 7 and connected to an external power supply or control circuit. The wire groove 7 protects the wire from being squeezed or damaged by high temperature, ensuring that the circuit is safe and reliable.

[0026] As an embodiment of this utility model, the top surface of the base 4 is provided with a number of fixing grooves 12 equal to the number of heating strips 8. The fixing grooves 12 are connected to the heating cavity. The heating strips 8 are fixed in the fixing grooves 12 by thermally conductive adhesive, and the bottom surface of the heating strips 8 is in the heating cavity. After the heating strips 8 are embedded in the fixing grooves 12, the thermally conductive adhesive fills the gaps to reduce thermal resistance. The bottom surface of the heating strips 8 is exposed in the heating cavity and directly absorbs the heat emitted by the heating element 11. The heat is stably transferred to the lower mold base 1 through the thermally conductive adhesive.

[0027] As an embodiment of this utility model, both the lower mold base 1 and the upper mold base 2 have a mold cavity 6. The top surface of the upper mold base 2 is equipped with an injection port 3, which is connected to the mold cavity 6. The lower mold base 1 and the upper mold base 2 are fitted together under the action of external components, such as an electric telescopic rod, to form a complete mold cavity 6. Molten raw materials are injected from the injection port 3 and solidified in a uniform temperature environment, avoiding problems such as inconsistent shoe sole density and hardness caused by uneven temperature.

[0028] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a control cabinet. The control circuit can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

Claims

1. A uniformly heated plate for shoe sole molds, characterized in that, The system includes a lower mold base (1), an upper mold base (2), and a base (4). The lower mold base (1) and the upper mold base (2) can fit together. The base (4) has a heating cavity inside. A heating element (11) is installed on the bottom surface of the heating cavity. The heating element (11) is formed by connecting several U-shaped heating wires end to end. The heating element (11) and the heating cavity are of equal length. Several heating strips (8) are embedded on the top surface of the base (4). Thermally conductive silicone (9) is attached to the top surface of the heating strips (8). Several heating strips (8) are evenly distributed along the long side of the base (4). The thermally conductive silicone (9) is attached to the lower mold base (1). A positioning sleeve (5) is installed on the outside of the base (4). The positioning sleeve (5) is engaged with the lower mold base (1).

2. The shoe sole mold uniform heating plate according to claim 1, characterized in that, The heating strip (8) and the lower mold base (1) are of equal width, the thermally conductive silicone (9) and the heating strip (8) are of equal width, and the heating strip (8) located at both ends extends beyond the bottom surface of the lower mold base (1).

3. The shoe sole mold uniform heating plate according to claim 1, characterized in that, The inner wall of the positioning sleeve (5) is fitted with a sealing ring (10), and the sealing ring (10) and the lower mold base (1) are interference-fitted.

4. The uniformly heated plate for shoe sole mold according to claim 1, characterized in that, The heating strip (8) is made of thermally conductive metal.

5. The uniformly heated plate for shoe sole mold according to claim 1, characterized in that, The base (4) has a groove (7) on its side that communicates with the heating chamber.

6. The shoe sole mold uniform heating plate according to claim 1, characterized in that, The top surface of the base (4) has a number of fixing grooves (12) equal to the number of heating strips (8). The fixing grooves (12) are connected to the heating cavity. The heating strips (8) are fixed in the fixing grooves (12) by thermally conductive adhesive, and the bottom surface of the heating strips (8) is inside the heating cavity.

7. The shoe sole mold uniform heating plate according to claim 1, characterized in that, Both the lower mold base (1) and the upper mold base (2) have a mold cavity (6). The top surface of the upper mold base (2) is equipped with an injection port (3), and the injection port (3) and the mold cavity (6) are connected.

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