Core-pulling cooling structure of forming bushing
By introducing cooling components such as cooling water pipes, heat insulation sleeves, and inserts into the mold core pulling process, combined with intelligent algorithms, precise temperature control of the mold core pulling process is achieved, solving the problem of uneven cooling in traditional mold core pulling and improving the quality and production efficiency of the forming bushing.
Patent Information
- Application Number
- CN202423100632.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Uneven cooling during core pulling in traditional molds leads to dimensional deviations and uneven internal stress in the molded bushings, affecting product quality.
A cooling assembly including a core-pulling cooling water pipe, a heat insulation sleeve, and a cooling pipe joint was designed. The local temperature is precisely controlled through cooling channels and inserts, and the coolant flow rate is monitored and adjusted by intelligent algorithms to achieve precise temperature control.
It improves the cooling efficiency of mold core pulling, ensures the quality and production efficiency of the molded bushing, and solves the problem of low temperature control accuracy.
Smart Images

Figure CN223618057U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold cooling, specifically a core-pulling cooling structure for a molding bushing. Background Technology
[0002] In the manufacturing process of molded bushings, the cooling effect of the core-pulling part of the mold directly affects the molding quality and efficiency. Traditional mold core-pulling parts have uneven cooling, making it difficult to achieve precise control of the cooling temperature, which causes dimensional deviations and uneven internal stress in the molded bushings, affecting product quality. Utility Model Content
[0003] This invention provides a core-pulling cooling structure for molded bushings, which can solve the problem that existing core-pulling cooling structures have poor temperature control accuracy and cannot cool key positions, resulting in a poor yield of molded bushings.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a core-pulling cooling structure for a molded bushing, comprising a mold core-pulling device, wherein a cooling assembly is provided inside the mold core-pulling device; the cooling assembly includes a core-pulling cooling water pipe, wherein a cooling flow channel is provided inside the core-pulling cooling water pipe; a heat insulation sleeve, which is sleeved on the outer wall of the core-pulling cooling water pipe and inserted into the mold core-pulling device; a cooling pipe joint, which is inserted into the side of the core-pulling cooling water pipe, wherein a quick-connect fitting for an inlet pipe and a quick-connect fitting for an outlet pipe are arranged side by side at the end of the cooling pipe joint away from the core-pulling cooling water pipe, and an outlet pipe connected to the quick-connect fitting for an outlet pipe is arranged axially inside the cooling pipe joint; an inlet pipe, which is horizontally arranged in the middle of the outlet pipe and connected to the quick-connect fitting for an inlet pipe, the inlet pipe extending into the cooling flow channel; and an insert, which is disposed at the end of the core-pulling cooling water pipe, wherein the cooling area is controlled by the heat insulation sleeve, and the top is equipped with an insert for temperature transfer, thereby achieving more precise control of the local temperature.
[0005] Preferably, the cooling pipe connector has a tapered mounting part at one end near the core-pulling cooling water pipe, which has a simple structure and achieves a quick and stable connection.
[0006] Preferably, the side of the core-pulling cooling water pipe is provided with a third mounting hole that matches the conical mounting part, which has a simple structure and achieves a quick and stable connection.
[0007] Preferably, the end of the water inlet pipe located in the cooling channel is provided with a bevel, which helps to guide the water flow into the cooling channel and improve cooling efficiency.
[0008] Preferably, the mold core puller is provided with a first mounting hole that matches the heat insulation sleeve, and a second mounting hole that matches the insert is provided at the front of the first mounting hole, so as to ensure that the cooling component and the insert can be accurately and securely installed in the mold core puller.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] With its simple structure, high cooling efficiency, and ease of installation and maintenance, this product improves the cooling efficiency of mold core pulling through effective cooling methods. This ensures the quality and production efficiency of the forming bushing. The heat insulation sleeve is used to isolate the temperature of the core pulling cooling water pipe and control the cooling area of the pipe. Inlays are used for temperature transfer, allowing for more precise control of local temperatures. This solves the problem of poor forming bushing yield caused by the low temperature control accuracy and inability to cool critical areas in existing core pulling cooling structures. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0012] Figure 2 This is a three-dimensional structural diagram of the cooling component of this utility model;
[0013] Figure 3 This is a front sectional view of the cooling component of this utility model;
[0014] Figure 4 This is an exploded view of the cooling component of this utility model;
[0015] Figure 5 This is a schematic diagram of the structure of the cooling pipe joint of this utility model;
[0016] Figure 6 This is a cross-sectional view of the cooling pipe joint of this utility model.
[0017] Figure 7 This is a cross-sectional view of the core-pulling cooling water pipe of this utility model.
[0018] Figure 8 This is a cross-sectional structural diagram of the mold core-pulling method of this utility model.
[0019] Figure label:
[0020] 1. Mold core pulling; 2. Cooling assembly; 21. Core pulling cooling water pipe; 22. Cooling flow channel; 23. Heat insulation sleeve; 24. Cooling pipe connector; 25. Outlet quick-connect connector; 26. Inlet quick-connect connector; 27. Insert; 28. Inlet pipe; 29. Outlet pipe; 211. Third mounting hole; 241. Conical mounting part; 281. Beveled surface; 11. First mounting hole; 12. Second mounting hole. Detailed Implementation
[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0022] like Figure 1-8 As shown, this utility model addresses the problem of poor yield of molded bushings due to low temperature control accuracy and inability to cool critical areas in existing core-pulling cooling structures. The following technical solution is provided: A core-pulling cooling structure for molded bushings includes a mold core-pulling unit 1, within which a cooling component 2 is installed. The cooling component 2 includes a core-pulling cooling water pipe 21, within which a cooling channel 22 is provided for the inflow of cooling water to ensure that the cooling water can uniformly and efficiently remove heat from the mold interior. A heat-insulating sleeve 23 is fitted onto the outer wall of the core-pulling cooling water pipe 21 and inserted into the mold core-pulling unit 1. The heat-insulating sleeve controls the cooling area and provides insulation and protection. A pipe connector 24 is inserted into the side of the core-pulling cooling water pipe 21. At the end of the cooling pipe connector 24 away from the core-pulling cooling water pipe 21, a quick-connect fitting 26 for the inlet pipe and a quick-connect fitting 25 for the outlet pipe are arranged side-by-side. An outlet pipe 29, connected to the quick-connect fitting 25, is arranged axially within the cooling pipe connector 24. An inlet pipe 28 is horizontally positioned in the middle of the outlet pipe 29 and connected to the quick-connect fitting 26. The inlet pipe 28 extends into the cooling channel 22 and is used to inject cooling water into the cooling channel 22. An insert 27 is located at the end of the core-pulling cooling water pipe 21. A heat insulation sleeve controls the cooling area, while the top uses an insert for temperature transfer, allowing for more precise control of the local temperature.
[0023] In this embodiment, as Figure 6 As shown, the cooling pipe connector 24 has a tapered mounting part 241 at one end near the core-pulling cooling water pipe 21. The structure is simple and enables a quick and stable connection.
[0024] In this embodiment, as Figure 7 As shown, the side of the core-pulling cooling water pipe 21 is provided with a third mounting hole 211 that matches the conical mounting part 241. The structure is simple and achieves a quick and stable connection.
[0025] In this embodiment, as Figure 5 As shown, the end of the water inlet pipe 28 located in the cooling channel 22 is provided with a beveled surface 281, which helps to guide the water flow into the cooling channel 22 and improve the cooling efficiency.
[0026] In this embodiment, as Figure 8As shown, the mold core pull 1 is provided with a first mounting hole 11 that matches the heat insulation sleeve 23, and a second mounting hole 12 that matches the insert 27 is provided at the front of the first mounting hole 11, which ensures that the cooling component 2 and the insert 27 can be accurately and securely installed in the mold core pull 1.
[0027] In this embodiment, as Figure 1 As shown, the tapered mounting part 241 of the cooling pipe connector 24 is inserted into the third mounting hole 211 of the core-pulling cooling water 21. The heat insulation sleeve 23 is fitted onto the outer wall of the core-pulling cooling water pipe 21. The insert 27 is installed at the end of the core-pulling cooling water pipe 21. The installed cooling assembly 2 is inserted into the mold core-pulling 1. The coolant supply system injects coolant into the inlet pipe quick-connect connector 26. The coolant flows through the inlet pipe 28 in the cooling channel 22, cooling the insert 27. The insert 27 transfers temperature, allowing for more precise control of the local temperature of the mold. The coolant absorbs heat during flow, and after its temperature rises, it flows into the outlet pipe 29 and out through the outlet pipe quick-connect connector 25, entering the coolant recovery system. During the cooling process, the core-pulling temperature is monitored in real time by an intelligent algorithm and control system. The flow rate and cooling rate of the cooling water circuit are manually adjusted as needed to achieve more precise local temperature control.
[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0029] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.
[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
Claims
1. A core-pulling cooling structure for a molded bushing, characterized in that, include: A mold core puller (1) is provided with a cooling assembly (2) inside the mold core puller (1); The cooling assembly (2) includes a core-pulling cooling water pipe (21), and a cooling flow channel (22) is provided inside the core-pulling cooling water pipe (21); A heat insulation sleeve (23) is sleeved on the outer wall of the core-pulling cooling water pipe (21), and the heat insulation sleeve (23) is inserted into the mold core-pulling (1); A cooling pipe connector (24) is inserted into the side of the core-pulling cooling water pipe (21). At the end of the cooling pipe connector (24) away from the core-pulling cooling water pipe (21), there are a water inlet quick-connect connector (26) and a water outlet quick-connect connector (25) arranged side by side. A water outlet pipe (29) connected to the water outlet quick-connect connector (25) is arranged in the cooling pipe connector (24) along its axial direction. Water inlet pipe (28) is horizontally arranged in the middle of the water outlet pipe (29) and connected to the water inlet quick-connect fitting (26). The water inlet pipe (28) extends into the cooling channel (22). Insert (27) is provided at the end of the core-pulling cooling water pipe (21).
2. The core-pulling cooling structure for the molded bushing according to claim 1, characterized in that: The cooling pipe connector (24) is provided with a tapered mounting part (241) at one end near the core-pulling cooling water pipe (21).
3. The core-pulling cooling structure for the molded bushing according to claim 2, characterized in that: The side of the core-pulling cooling water pipe (21) is provided with a third mounting hole (211) that matches the conical mounting part (241).
4. The core-pulling cooling structure for the molded bushing according to claim 1, characterized in that: The end of the water inlet pipe (28) located in the cooling channel (22) is provided with a beveled surface (281).
5. The core-pulling cooling structure for the molded bushing according to claim 1, characterized in that: The mold core puller (1) is provided with a first mounting hole (11) that matches the heat insulation sleeve (23), and the front part of the first mounting hole (11) is provided with a second mounting hole (12) that matches the insert (27).