Blocking valve electric heating mold
By combining heat pipes and heating elements, the problem of uneven heating in traditional molds is solved, enabling rapid and uniform heating in the production process of sealing valves, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AISAN (TIANJIN) AUTO PARTS CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-05-19
AI Technical Summary
Uneven heating in traditional molds causes material to solidify during the production of the sealing valve, affecting its fluidity and production efficiency.
The system employs a combination of heat pipes and heating elements, which uniformly transfer heat through the heat pipes to ensure rapid and uniform heating of the die and punch.
It enables rapid and uniform heating of the mold, avoiding the problem of uneven heating of the die and punch, and improving production efficiency and product quality.
Smart Images

Figure CN224255838U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, specifically to an electric heating mold for a sealing valve. Background Technology
[0002] The primary function of automotive shut-off valves is to reduce energy consumption and improve pipeline efficiency. Specifically, automotive shut-off valves regulate fluid flow in pipelines to ensure stable system operation, reduce unnecessary energy loss, and thus improve overall system efficiency. Their working principle involves using an electromagnetic coil to generate electromagnetic force to control the valve's opening and closing. When energized, the coil generates electromagnetic force, causing the closing element to move away from the valve seat, opening the valve; when de-energized, the electromagnetic force disappears, and the spring presses the closing element back onto the valve seat, closing the valve. This design allows the valve to automatically adjust as needed, ensuring stable system operation.
[0003] The body of a shut-off valve is typically manufactured using injection molding or die casting. Regardless of the method, the most crucial element is the mold. This mold needs to be heated to a specific temperature; otherwise, the material will solidify inside and become unflowable. Traditional mold heating relies on a heating element, which results in high temperatures around the heating element, concentrating heat near it and causing uneven heating throughout the mold. To address this, we propose an electrically heated mold for shut-off valves. Utility Model Content
[0004] This invention provides an electrically heated mold for a sealing valve, which has the advantages of fast heating speed and uniform heating, and solves the problems mentioned in the background art.
[0005] The technical solution of this utility model is implemented as follows: a sealing valve electric heating mold includes a concave mold and a convex mold. An installation plate is installed on the side of the concave mold and the convex mold that are far apart from each other. Several heat-conducting pipes are arranged at intervals on the side of the two installation plates that are far apart from each other. The plane formed by the heat-conducting pipes corresponds to the concave mold and the convex mold respectively. A heating element is also provided on the surface of the installation plate. The heat emitted by the heating element is transferred to each heat-conducting pipe, so that the plane formed by the heat-conducting pipes can be heated evenly. The edges of each installation plate are detachably set on the support plate.
[0006] Preferably, the two mounting plates are provided with several spaced strip grooves on the side away from each other, and the heat conduction pipe is placed in the strip grooves.
[0007] Preferably, the surfaces of the two mounting plates opposite to each other have grooves that intersect with the strip grooves, and the heating element is placed inside the grooves.
[0008] Furthermore, the depth of the tank is smaller than that of the strip tank, and when the heating element is placed inside the tank, there is a gap between the heating element and the heat pipe.
[0009] Preferably, the groove is bent and disposed on the surface of the mounting plate, and both ends of the groove are connected to the edge of the mounting plate.
[0010] Preferably, there are at least two tanks.
[0011] Preferably, the edge of the support plate is provided with multiple mounting holes.
[0012] Compared with the prior art, the heat-conducting pipes of this invention have extremely high thermal conductivity. Therefore, when the heating element heats up, the multiple heat-conducting pipes can quickly disperse the heat, making the multiple heat-conducting pipes form a heating element with a uniform temperature, thus avoiding the problem of uneven heating of the concave and convex molds. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0014] Figure 1 This is a structural schematic diagram of one side of the present invention.
[0015] Figure 2 This is a schematic diagram of the structure on the other side of this utility model.
[0016] Figure 3 This is a schematic diagram of the structure of the mounting plate surface of this utility model.
[0017] Figure 4 This is a side view of the mounting plate of this utility model.
[0018] Figure 5 This is a schematic diagram of the structure of the concave mold and convex mold after they are closed.
[0019] In the diagram: 1. Die; 2. Punch; 3. Mounting plate; 4. Support plate; 5. Heating element; 6. Tank; 7. Strip groove; 8. Heat pipe. Detailed Implementation
[0020] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0021] Reference Figures 1 to 5This utility model provides a technical solution: an electric heating mold for a sealing valve, including a concave mold 1 and a convex mold 2. The surface of the concave mold 1 is provided with a cavity that matches the valve body of the sealing valve, and the surface of the convex mold 2 is provided with a mold core corresponding to the cavity. Figure 5 As shown, after the concave mold 1 and the convex mold 2 are closed, the mold core is placed in the cavity, and the valve body can be formed in the cavity.
[0022] Mounting plates 3 are installed on the sides of the die 1 and the punch 2 that are far apart from each other, such as... Figure 1 and Figure 2 As shown, the mounting plate 3 is stepped between the die 1 and the punch 2. During installation, the edge of each mounting plate 3 is detachably mounted on the support plate 4. Specifically, the edge of the mounting plate 3 is fastened to the support plate 4 with bolts. In actual use, the edge of the support plate 4 is provided with multiple mounting holes for installation with the injection molding machine tool.
[0023] The most important aspect of this application is that a plurality of spaced heat-conducting pipes 8 are provided on the side of the two mounting plates 3 that are far apart from each other, and the planes formed by the heat-conducting pipes 8 correspond to the concave mold 1 and the convex mold 2 respectively. For example... Figure 3 As shown, the two mounting plates 3 are provided with several spaced strip grooves 7 on one side away from each other. The size and position of the strip grooves 7 correspond to the heat conduction pipes 8 respectively, and each heat conduction pipe 8 is placed in the strip groove 7.
[0024] Next, a heating element 5 is provided on the surface of the mounting plate 3. Specifically, a groove 6 intersecting with the strip groove 7 is provided on the surface of the two mounting plates 3 on the side away from each other, and the heating element 5 is placed in the groove 6.
[0025] It should be noted that the depth of the tank 6 is smaller than the depth of the strip-shaped tank 7. When the heating element 5 is placed inside the tank 6, the heating element 5 and the heat-conducting pipe 8 are in a clearance fit, meaning they are very close to each other. Figure 4 As shown, the heating element 5 is located on one side of the heat pipe 8. When the heating element 5 heats up, the heat emitted by the heating element 5 is transferred to each heat pipe 8.
[0026] It should be noted that the heat pipe 8 should be a medium-temperature heat pipe, which can operate stably between 200℃ and 600℃. Of course, other types of heat pipes can be selected according to the actual situation. Because the heat pipe has extremely high thermal conductivity, its thermal conductivity coefficient is far greater than that of traditional metal materials. Therefore, when the heating element 5 heats up, the multiple heat pipes 8 can quickly distribute the heat, so that the multiple heat pipes 8 form a heating element with a uniform temperature. At this time, the plane formed by the heat pipes 8 can heat up evenly, which allows the multiple concave molds 1 and convex molds 2 to be heated quickly and evenly, avoiding the problem of uneven heating of the concave molds 1 and convex molds 2.
[0027] Furthermore, the groove 6 is curved and disposed on the surface of the mounting plate 3. The groove 6 is serpentine, and both ends of the groove 6 are connected to the edge of the mounting plate 3. There are at least two grooves 6 arranged at equal intervals on the surface of the mounting plate 3, so that multiple heating elements 5 can be placed in each groove 6, and then the two ends of the heating elements 5 extend to the outside of the groove 6 (e.g., Figure 5 (As shown), this makes wiring easier.
[0028] Based on the above embodiments, it should be further explained that there are multiple concave molds 1 and convex molds 2. All concave molds 1 and convex molds 2 are the same size, but the valve body models produced are different. If different models of valve bodies are to be produced, since concave molds 1 and convex molds 2 are easy to disassemble, in actual use, the support plate 4 is installed on the injection molding machine. If the mold needs to be replaced, only concave molds 1 and convex molds 2 need to be disassembled for replacement.
[0029] Moreover, both the heating element 5 and the heat pipe 8 are easy to install. During installation, simply place the heat pipe 8 in the strip groove 7, then place the heating element 5 in the groove 6, and finally install the mounting plate 3 on the support plate 4.
[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A sealing valve electric heating mold, comprising a concave mold (1) and a convex mold (2), characterized in that, Mounting plates (3) are installed on the sides of the die (1) and the punch (2) that are far apart from each other; Two mounting plates (3) are provided with several heat-conducting pipes (8) arranged at intervals on one side away from each other. The plane formed by the heat-conducting pipes (8) corresponds to the concave mold (1) and the convex mold (2) respectively. The mounting plate (3) is also provided with a heating element (5). The heat emitted by the heating element (5) is transferred to each heat pipe (8), so that the plane formed by the heat pipes (8) can be heated evenly. as well as, Each mounting plate (3) has its edge detachably mounted on the support plate (4).
2. The electrically heated mold for the sealing valve as described in claim 1, characterized in that, Two mounting plates (3) are provided with several spaced strip grooves (7) on one side away from each other, and the heat pipe (8) is placed in the strip groove (7).
3. The electrically heated mold for the sealing valve as described in claim 2, characterized in that, Two mounting plates (3) are provided with grooves (6) on their surfaces that are far apart from each other and intersect with the strip groove (7). The heating element (5) is placed inside the groove (6). Furthermore, the depth of the tank (6) is smaller than the depth of the strip groove (7). When the heating element (5) is placed in the tank (6), there is a gap between the heating element (5) and the heat-conducting pipe (8).
4. The electrically heated mold for the sealing valve as described in claim 3, characterized in that, The groove (6) is bent and set on the surface of the mounting plate (3), and the two ends of the groove (6) are respectively connected to the edge of the mounting plate (3).
5. The electrically heated mold for the sealing valve as described in claim 4, characterized in that, There are at least two tanks (6).
6. The electrically heated mold for the sealing valve as described in claim 1, characterized in that, The edge of the support plate (4) is provided with multiple mounting holes.