Cooling runner structure of PA66 plastic high-precision injection molding mold
By designing the cooling channel structure of the PA66 plastic high-precision injection mold and adopting a combination of cooling pipes and fans, the problem of uneven cooling was solved, achieving rapid and uniform cooling and safe anti-clogging, thus improving product quality and ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-03
AI Technical Summary
Existing traditional cooling channel structures cannot fully conform to the complex shape of PA66 products, resulting in uneven cooling, generating internal stress, and affecting the dimensional accuracy and appearance quality of the products.
A cooling channel structure for a high-precision injection molding mold of PA66 plastic was designed, which includes a cooling mechanism and a liquid outlet mechanism. Rapid cooling is achieved through cooling pipes and a cooling fan, and clogging is prevented through a liquid distribution ring and a filter screen.
It enables rapid and uniform cooling of products, improves dimensional accuracy and appearance quality, prevents internal blockage of the device, and enhances safety and convenience of use.
Smart Images

Figure CN224074922U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding mold cooling technology, specifically a cooling channel structure for a high-precision injection molding mold for PA66 plastic. Background Technology
[0002] Injection molding mold cooling refers to the process of quickly and evenly dissipating the heat generated by the injection of molten plastic into the mold through a specific cooling system and medium during the injection molding process. This allows the plastic product to cool and solidify rapidly within the mold, ensuring smooth demolding and maintaining its dimensional accuracy, appearance quality, and performance requirements.
[0003] Existing traditional cooling channels are usually formed by straight drilling, which is difficult to fully fit the complex shape of PA66 products. For high-precision injection molded PA66 parts, some parts may cool too quickly while others cool too slowly, generating internal stress and affecting the dimensional accuracy and appearance quality of the product, such as warping and deformation. To address this, we propose a cooling channel structure for high-precision injection molding molds of PA66 plastic. Utility Model Content
[0004] The purpose of this invention is to provide a cooling channel structure for a high-precision injection molding mold of PA66 plastic, in order to solve the problem mentioned in the background art that the existing traditional cooling channels are usually formed by straight drilling, which is difficult to fully fit the complex shape of PA66 products. For high-precision injection molded PA66 parts, this may cause some parts to cool too quickly while others cool too slowly, generating internal stress and affecting the dimensional accuracy and appearance quality of the product, such as warping and deformation.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a cooling channel structure for a high-precision injection molding mold for PA66 plastic, comprising: a main body, a top plate fixedly connected to the top of the main body, and a casting template slidably connected inside the top plate.
[0006] It also includes: a cooling mechanism, which is installed on the top plate and is used to cool the model inside the device;
[0007] The liquid discharge mechanism is located on the main body and is used to discharge the coolant after the model inside the device has been cooled.
[0008] The cooling mechanism includes a connecting plate fixedly connected to the top of the top plate, a fixing plate fixedly connected inside the connecting plate, a cooling fan fixedly connected inside the fixing plate, a connecting port fixedly connected to the bottom of the connecting plate, and a cooling pipe fixedly connected to the bottom of the connecting port.
[0009] The cooling pipe is fixedly connected to a bracket on its outer perimeter, and the bracket is fixedly connected to the bottom of the connecting plate.
[0010] The liquid dispensing mechanism includes a liquid dispensing ring fixedly connected inside the main body, a connecting pipe slidably connected inside the liquid dispensing ring, a liquid separating ring fixedly connected to the top of the connecting pipe, and a liquid dispensing pipe fixedly connected to the bottom of the liquid dispensing ring.
[0011] The top of the separating ring has a fixed filter screen.
[0012] The bottom of the top plate is movably connected to the bottom plate, and the bottom of the bottom plate is fixedly connected to the base.
[0013] One side of the casting template is fixedly connected to a connecting ring, and the other side of the connecting ring is fixedly connected to a pull ring.
[0014] This utility model has at least the following beneficial effects:
[0015] In use, this invention features a cooling mechanism that allows workers to circulate coolant through the connection port and cooling pipes, rapidly cooling the internal templates. Additionally, workers can activate a cooling fan to quickly cool the coolant within the cooling pipes, enhancing the cooling effect. The coolant outlet mechanism ensures that after cooling is complete, the coolant exits through a distributor ring, filters impurities through a filter screen to prevent blockages, and discharges the coolant through an outlet pipe, improving safety during operation. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the connecting ring of this utility model;
[0018] Figure 3 This is a schematic diagram of the cooling mechanism of this utility model;
[0019] Figure 4 This is a schematic diagram of the liquid dispensing mechanism of this utility model.
[0020] In the diagram: 1. Main body; 101. Top plate; 102. Casting mold; 103. Bottom plate; 104. Base; 105. Connecting ring; 106. Pull ring; 2. Cooling mechanism; 201. Connecting plate; 202. Fixing plate; 203. Cooling fan; 204. Fixing frame; 205. Connection port; 206. Cooling pipe; 3. Liquid discharge mechanism; 301. Filter screen; 302. Liquid distribution ring; 303. Connecting pipe; 304. Liquid discharge ring; 305. Liquid discharge pipe. Detailed Implementation
[0021] 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.
[0022] Example 1
[0023] Please see Figures 1 to 4 This utility model provides a technical solution: a cooling channel structure for a high-precision injection molding mold for PA66 plastic, comprising: a main body 1, a top plate 101 fixedly connected to the top of the main body 1, and a casting template 102 slidably connected inside the top plate 101.
[0024] It also includes: a cooling mechanism 2, which is installed on the top plate 101 and is used to cool the model inside the device;
[0025] Liquid discharge mechanism 3 is installed on the main body 1. Liquid discharge mechanism 3 is used to discharge coolant after the internal model of the device has been cooled.
[0026] The top plate 101 is equipped with a cooling mechanism 2. During use, the operator can circulate the coolant inside the device through the connection port 205 and the cooling pipe 206 to quickly cool the internal template. In addition, the operator can start the cooling fan 203 to quickly cool the coolant inside the cooling pipe 206, which improves the cooling effect of the device. The main body 1 is fixedly connected to the liquid outlet mechanism 3. When the device is in use, after the internal cooling is completed, the coolant is discharged through the liquid distribution ring 302. The filter screen 301 filters the impurities inside the coolant to prevent blockage inside the device. In addition, the coolant is discharged through the liquid outlet pipe 305, which improves the safety of the device.
[0027] The cooling mechanism 2 includes a connecting plate 201 fixedly connected to the top of the top plate 101. A fixing plate 202 is fixedly connected inside the connecting plate 201. A cooling fan 203 is fixedly connected inside the fixing plate 202. A connecting port 205 is fixedly connected to the bottom of the connecting plate 201. A cooling pipe 206 is fixedly connected to the bottom of the connecting port 205. A fixing frame 204 is fixedly connected to the periphery of the cooling pipe 206. The fixing frame 204 is fixedly connected to the bottom of the connecting plate 201. During use, the operator can circulate the coolant inside the device through the connecting port 205 and the cooling pipe 206 to quickly cool the template inside the device. In addition, the operator can start the cooling fan 203 to quickly cool the coolant inside the cooling pipe 206, thereby improving the cooling effect of the device.
[0028] The liquid discharge mechanism 3 includes a liquid discharge ring 304 fixedly connected inside the main body 1. A connecting pipe 303 is slidably connected inside the liquid discharge ring 304. A liquid distribution ring 302 is fixedly connected to the top of the connecting pipe 303. A liquid discharge pipe 305 is fixedly connected to the bottom of the liquid discharge ring 304. A filter screen 301 is fixedly fixed to the top of the liquid distribution ring 302. When the device is in use, after the internal cooling of the device is completed, the coolant is discharged through the liquid distribution ring 302. The filter screen 301 filters the impurities inside the coolant to prevent blockage inside the device. In addition, the coolant is discharged through the liquid discharge pipe 305, which improves the safety of the device.
[0029] Example 2
[0030] In this second embodiment, all other structures remain unchanged, but the difference from the first embodiment is:
[0031] A base plate 103 is movably connected to the bottom of the top plate 101, and a base 104 is fixedly connected to the bottom of the base plate 103. When the device is casting, the operator can close the device through the base plate 103 and the base 104 to facilitate casting and demolding, thus improving the ease of use of the device. A connecting ring 105 is fixedly connected to one side of the casting template 102, and a pull ring 106 is fixedly connected to one side of the connecting ring 105. When the device is in use, the casting template 102 can be removed and demolded by pulling the pull ring 106 and the connecting ring 105, thus improving the ease of use of the device.
[0032] 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 process, method, article, or apparatus.
[0033] 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 cooling runner structure of a PA66 plastic high-precision injection molding mold, comprising: The body (1), the top of the body (1) is fixedly connected with a top plate (101), the inside of the top plate (101) is slidably connected with a casting mold plate (102), Characterized in that it further comprises a cooling mechanism (2), the cooling mechanism (2) is arranged on the top plate (101), and the cooling mechanism (2) is used for cooling the internal model of the device; The liquid outlet mechanism (3) is arranged on the body (1), and the liquid outlet mechanism (3) is used for discharging the cooling liquid after the internal model of the device is cooled.
2. The cooling runner structure of the PA66 plastic high-precision injection molding mold according to claim 1, characterized in that: The cooling mechanism (2) comprises a connecting plate (201) fixedly connected at the top of the top plate (101), a fixed plate (202) fixedly connected in the connecting plate (201), a cooling fan (203) fixedly connected in the fixed plate (202), a connecting port (205) fixedly connected at the bottom of the connecting plate (201), and a cooling pipeline (206) fixedly connected at the bottom of the connecting port (205).
3. The cooling runner structure of the PA66 plastic high-precision injection molding mold according to claim 2, characterized in that: The periphery of the cooling pipeline (206) is fixedly connected with a fixing frame (204), and the fixing frame (204) is fixedly connected at the bottom of the connecting plate (201).
4. The cooling runner structure of the PA66 plastic high-precision injection molding mold according to claim 3, characterized in that: The liquid outlet mechanism (3) comprises a liquid outlet ring (304) fixedly connected in the body (1), a connecting pipe (303) slidably connected in the liquid outlet ring (304), a liquid distribution ring (302) fixedly connected at the top of the connecting pipe (303), and a liquid outlet pipe (305) fixedly connected at the bottom of the liquid outlet ring (304).
5. The cooling runner structure of the PA66 plastic high-precision injection molding mold according to claim 4, characterized in that: The top of the liquid distribution ring (302) is fixedly connected with a filter screen (301).
6. The cooling runner structure of the PA66 plastic high-precision injection molding mold according to claim 1, characterized in that: The bottom of the top plate (101) is movably connected with a bottom plate (103), and the bottom of the bottom plate (103) is fixedly connected with a base (104).
7. The cooling runner structure of the PA66 plastic high-precision injection molding mold according to claim 1, characterized in that: One side of the casting mold plate (102) is fixedly connected with a connecting ring (105), and one side of the connecting ring (105) is fixedly connected with a pull ring (106).