Sole mold with preheating function

Abstract

The utility model discloses a sole mold with a preheating function, and relates to the technical field of molds. The shoe sole mold comprises a shoe sole mold body, heating mechanisms are fixedly connected to the left side and the right side of the shoe sole mold body, each heating mechanism comprises a first installation frame, a first heating plate is fixedly connected to the interior of each first installation frame, guide columns are fixedly connected to the two sides of each first installation frame, and sliding blocks are connected to the guide columns in a sliding mode. A first mounting frame is fixedly connected to the top of the heating mechanism, a sliding block is arranged in the first mounting frame, a second mounting frame is fixedly connected to the top of the sliding block, and a second heating plate is slidably connected to the interior of the second mounting frame. And the second heating plate is separately connected with the mold through the sliding mechanism, so that the problem that the wall thickness is reduced due to the fact that the heating assembly is embedded into the mold is thoroughly avoided, and the mold body keeps complete structural strength.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a shoe sole mold with a preheating function. Background Technology

[0002] EVA foam or TPU foam has good cushioning, shock absorption, heat insulation, moisture resistance and chemical corrosion resistance. It is also non-toxic and non-absorbent, meeting environmental protection requirements. Therefore, it is widely used in the midsole or outsole of footwear products.

[0003] When existing shoe sole molds are heated using heating plates, the heating plates are inserted into the mold, which affects the structural strength of the mold. This can cause the mold body to deform during the hot pressing process, affecting its service life. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a shoe sole mold with a preheating function, so as to solve the technical problems of traditional molds that require the heating plate to be embedded inside the mold body, resulting in thinner mold wall thickness, easy deformation during hot pressing, and fixed heating plates set on the upper and lower sides occupy the operating space of the hot press machine, which poses a risk of being crushed by the hot pressing mechanism.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a shoe sole mold with a preheating function, comprising a shoe sole mold, wherein heating mechanisms are fixedly connected to both the left and right sides of the shoe sole mold, the heating mechanism comprising a first mounting frame, a first heating plate fixedly connected inside the first mounting frame, guide posts fixedly connected to both sides of the first mounting frame, sliding blocks slidably connected to the guide posts, a second mounting frame fixedly connected to the top of the sliding blocks, and a second heating plate slidably connected inside the second mounting frame.

[0006] By adopting the above technical solution, the heating components are externalized through a separate mounting frame and a sliding heating plate, avoiding the structural damage to the mold body caused by traditional embedded heating plates, eliminating the internal slotted structure, and improving the life of the mold.

[0007] Furthermore, a spring is provided between one end of the sliding block and the guide post, the spring being used to provide clamping force.

[0008] By adopting the above technical solution, the spring compression spring is sleeved at the bottom of the guide post, and the upper end abuts against the lower surface of the sliding block.

[0009] Furthermore, a first thermal conductive adhesive is provided between the first heating plate and the shoe sole mold, and a second thermal conductive adhesive is fixedly connected to the bottom of the second heating plate.

[0010] By adopting the above technical solution, the first thermal conductive patch can be a flexible graphene composite material sheet, which is sandwiched between the first heating plate and the outer wall of the mold, and the second thermal conductive patch is a sheet of the same material, which is bonded and fixed to the bottom surface of the second heating plate.

[0011] Furthermore, the first mounting frame is fixedly connected to the shoe sole mold by bolts, and a protective shell is rotatably connected to the top side of the second mounting frame.

[0012] By adopting the above technical solution, countersunk bolt holes are set on the edge of the first mounting frame to connect with the threaded sleeve pre-embedded in the outer wall of the mold. The modular bolt connection facilitates the overall disassembly and maintenance of the heating mechanism. The bolts penetrate the mounting frame and form a rigid connection with the mold wall.

[0013] Furthermore, the shoe sole mold includes a lower mold and an upper mold, which are rotatably connected.

[0014] By adopting the above technical solution, when it needs to be unfolded, the working surfaces of the upper and lower molds face upwards simultaneously, which facilitates synchronous preheating on both sides. When closed, it ensures that the mold cavity is sealed, breaking through the limitations of traditional single-sided heating and achieving double working surface exposure through structural innovation.

[0015] Furthermore, the lower mold is provided with a lower mold groove, and the upper mold is provided with an upper punch.

[0016] By adopting the above technical solution, the concave cavity of the lower mold groove is CNC machined and the surface is plated with hard chrome, and the upper punch has a raised structure.

[0017] In summary, the present invention has the following main advantages:

[0018] 1. This utility model, by setting up a shoe sole mold, a heating mechanism, a first heating plate, and a second heating plate, with the first heating plate fixed to the first mounting frame on the outside of the mold and the second heating plate being separately connected to the mold through a sliding mechanism, completely avoids the problem of wall thickness reduction caused by the heating component being embedded inside the mold, thus maintaining the integrity of the mold body's structural strength and significantly reducing the risk of hot-press deformation. The second heating plate achieves vertical lifting and horizontal storage through guide columns and sliding blocks, and with the automatic reset function of the spring, the heating plate can be completely stored in the second mounting frame when not heated, providing sufficient operating space for the hot press head and fundamentally avoiding the problem of pressure damage caused by equipment interference.

[0019] 2. This utility model features a rotatable protective shell. When the second heating plate is retracted into the second mounting frame, the protective shell can be manually rotated to cover its terminal area, forming a protective structure that completely isolates the electrical interface from mechanical collisions. Attached Figure Description

[0020] Figure 1This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is an exploded three-dimensional structural diagram of the heating mechanism of this utility model;

[0022] Figure 3 This is a bottom-view perspective view of the heating mechanism of this utility model.

[0023] Figure 4 This is a bottom-view exploded structural diagram of the heating mechanism of this utility model.

[0024] In the diagram: 1. Shoe sole mold; 101. Lower mold; 102. Upper mold; 103. Lower mold groove; 104. Upper punch; 2. Heating mechanism; 201. First mounting frame; 205. First heating plate; 202. Guide post; 203. Sliding block; 204. Second mounting frame; 206. Second heating plate; 207. Spring; 3. First thermal conductive pad; 4. Second thermal conductive pad; 5. Protective shell. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] Example 1:

[0027] A shoe sole mold with preheating function, such as Figures 1-4 As shown, the shoe includes a sole mold 1, with heating mechanisms 2 fixedly connected to both the left and right sides of the sole mold 1. Each heating mechanism 2 includes a first mounting frame 201, with a first heating plate 205 fixedly connected inside the first mounting frame 201. Guide posts 202 are fixedly connected to both sides of the first mounting frame 201, and sliding blocks 203 are slidably connected to the guide posts 202. A second mounting frame 204 is fixedly connected to the top of the sliding blocks 203, and a second heating plate 206 is slidably connected inside the second mounting frame 204. The main structure of the sole mold 1 is an up-and-down opening type, with four sets of heating mechanisms symmetrically arranged on the left and right sides. The first mounting frame 201 is a rigid frame, fixed... A mounting base for the heating component is provided on the outer wall of the mold side. The first heating plate 205 is embedded and fixed in the inner cavity of the mounting frame and arranged parallel to the outer wall of the mold. Stable heat conduction is achieved by limiting the frame. The guide post 202 consists of two vertical guide rods, which are symmetrically welded to the two sides of the first mounting frame to form a sliding track. The sliding block 203 is sleeved on the guide post 202 to achieve up and down sliding. The top is rigidly connected to the second mounting frame. The second mounting frame 204 is fixedly connected to the top of the sliding block 203. The interior is provided with a slide rail or slide channel for the second heating plate to be pulled out horizontally. The second heating plate 206 is nested in the second mounting frame through the slide rail and can be pulled out horizontally to cover the mold surface.

[0028] See Figure 2 , Figure 3 and Figure 4 A spring 207 is provided between one end of the sliding block 203 and the guide post 202. The spring 207 is used to provide clamping force. The two ends of the spring 207 abut against the bottom surface of the sliding block 203 and the bottom fixing seat of the guide post 202, respectively. The preload of the spring 207 keeps the sliding block 203 in the lower limit position when not in operation, ensuring that the second heating plate 206 is separated from the mold surface when it is stored. During operation, the operator pushes it upward against the spring force to make the heating plate press against the mold, which not only ensures the heating contact pressure, but also achieves automatic avoidance.

[0029] See Figure 2 and Figure 4 A first thermal conductive patch 3 is provided between the first heating plate 205 and the shoe sole mold 1. A second thermal conductive patch 4 is fixedly connected to the bottom of the second heating plate 206. The first thermal conductive patch 3 completely covers the working surface of the first heating plate 205. The second thermal conductive patch 4 moves synchronously with the second heating plate 206. The flexible thermal conductive layer compensates for the unevenness of the mold surface, increases the contact area, and at the same time serves as a thermal buffer layer to prevent local overheating, solves the interface thermal resistance problem between the external heater and the mold, and improves the thermal energy utilization rate.

[0030] See Figure 1 The shoe sole mold 1 includes a lower mold 101 and an upper mold 102, which are rotatably connected. The lower mold 101 and the upper mold 102 are separate structures with precision-ground joint surfaces. They are opened and closed by a side hinge shaft. The hinge seat is integrally cast with the mold body. The hinge shaft runs horizontally through both sides of the mold, and the upper and lower molds can rotate 0-180° around the shaft.

[0031] See Figure 1 The lower mold 101 is provided with a lower mold groove 103, and the upper mold 102 is provided with an upper punch 104. The depth of the lower mold groove 103 is greater than the height of the upper punch 104. When closed, it forms a cavity with equal wall thickness. The concave-convex mating structure guides the flow direction of the raw material during pressing, while avoiding uneven wall thickness caused by the embedding of traditional heating plates, thus maintaining the structural integrity of the mold body.

[0032] The implementation principle of this utility model is as follows: First, the upper mold 102 is opened around the pivot, so that the bottom surface of the lower mold 101 and the top surface of the upper mold 102 are fully exposed. The second mounting frame 204 is pulled upward against the elastic force of the spring 207, and the second heating plate 206 is pulled horizontally out from the second mounting frame 204. The tension is released so that the spring 207 pushes the second heating plate 206 and the second heat-conducting sticker 4 below to tightly adhere to the mold surface. The power cord is used to clamp the terminals of the first heating plate 205 and the second heating plate 206, and the first heating plate 205 and the second heating plate 206 are started, so that the first heating plate 205 and the second heating plate 206 heat up synchronously and maintain preheating so that the mold reaches the set temperature.

[0033] After disconnecting the power cord, manually push the second heating plate 206 back into the second mounting frame 204. The spring 207 pushes the sliding block 203 down along the guide post 202 to form a safe gap to avoid interference with the hot press head.

[0034] After the raw material is placed in, the upper and lower molds 101 and 102 are closed and pressure is applied by the hot press. At this time, the mold body maintains its complete structural strength and there is no stress concentration caused by the embedded heating plate.

[0035] Example 2:

[0036] See Figure 1 , Figure 2 , Figure 3 and Figure 4 The first mounting frame 201 is fixedly connected to the shoe sole mold 1 by bolts. The top side of the second mounting frame 204 is rotatably connected to a protective shell 5. The protective shell 5 is a metal cover with a hinge connection and is rotatably installed on the top edge of the second mounting frame 204. When the protective shell 5 is closed, it covers one side of the second mounting frame 204. The rotating protective shell 5 shields the wiring terminals of the second heating plate 206 when it is not in operation.

[0037] The implementation principle of this utility model is as follows: First, after the second heating plate 206 is retracted into the second mounting frame 204, the protective shell 5 is rotated so that the protective shell 5 can protect the terminals of the second heating plate 206, thus playing a protective role.

[0038] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A shoe sole mold with a preheating function, characterized in that: The device includes a shoe sole mold (1), and heating mechanisms (2) are fixedly connected to both the left and right sides of the shoe sole mold (1). The heating mechanism (2) includes a first mounting frame (201), a first heating plate (205) is fixedly connected inside the first mounting frame (201), guide posts (202) are fixedly connected to both sides of the first mounting frame (201), a sliding block (203) is slidably connected to the guide post (202), a second mounting frame (204) is fixedly connected to the top of the sliding block (203), and a second heating plate (206) is slidably connected inside the second mounting frame (204).

2. The shoe sole mold with preheating function according to claim 1, characterized in that: A spring (207) is provided between one end of the sliding block (203) and the guide post (202), the spring (207) being used to provide clamping force.

3. The shoe sole mold with preheating function according to claim 1, characterized in that: A first thermal conductive patch (3) is provided between the first heating plate (205) and the shoe sole mold (1), and a second thermal conductive patch (4) is fixedly connected to the bottom of the second heating plate (206).

4. The shoe sole mold with preheating function according to claim 1, characterized in that: The first mounting frame (201) is fixedly connected to the shoe sole mold (1) by bolts, and the top side of the second mounting frame (204) is rotatably connected to a protective shell (5).

5. The shoe sole mold with preheating function according to claim 1, characterized in that: The shoe sole mold (1) includes a lower mold (101) and an upper mold (102), which are rotatably connected.

6. The shoe sole mold with preheating function according to claim 5, characterized in that: The lower mold (101) is provided with a lower mold groove (103), and the upper mold (102) is provided with an upper punch (104).

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