Rapid cooling forming mold for plastic dye
By introducing heat dissipation fins and scraper structures into the rapid cooling molding mold for plastic dyes, combined with water circulation components, the problem of uneven cooling caused by cooling medium sedimentation was solved, achieving a highly efficient and uniform cooling effect, and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-03
AI Technical Summary
In existing plastic dye rapid cooling molding molds, the cooling medium circulating in the cooling channel for a long time is prone to forming scale or impurity deposits, which leads to obstructed heat transfer, reduced cooling efficiency, uneven product cooling, and quality problems such as deformation and warping.
A rapid cooling molding die with heat dissipation fins and a scraper was designed. The scraper slides along the surface of the heat dissipation fins to clean the scale. Combined with a water circulation component, including an inlet pipe, a return pipe, and a return chamber, the scale is automatically cleaned, ensuring smooth flow of the cooling medium.
It effectively removes scale, improves cooling efficiency, ensures uniform product cooling, reduces deformation and warping, and enhances the efficiency and operational flexibility of production equipment.
Smart Images
Figure CN223961673U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of molding die technology, and in particular to a rapid cooling molding die for plastic dyes. Background Technology
[0002] Rapid cooling molding dies for plastic dyes use cavities and cores to shape products according to their designs, transforming liquid plastic into a solid state. The cooling channel design allows the cooling medium to circulate, quickly removing the molding heat and achieving rapid cooling. This shortens the production cycle, improves efficiency, and avoids deformation and warping caused by uneven cooling. It also makes the internal structure of the product more uniform and dense, reduces internal stress, ensures the physical properties of the product, and maintains stable and consistent quality.
[0003] When using a rapid cooling molding mold with plastic dye, first securely install it on the injection molding machine, connect the cooling pipes, and preheat the mold as required to prepare for injection. Then, inject the molten plastic dye into the cavity through the injection molding machine nozzle, precisely controlling parameters such as injection pressure, speed, holding pressure, and time. After injection, immediately start the cooling system to allow the cooling medium to circulate and remove heat, completing the cooling and setting process. The time required depends on the product characteristics and cooling efficiency. Once the product has cooled and hardened, open the mold and remove it through the ejector device, followed by quality inspection. Finally, clean any residual impurities from the mold with compressed air and cleaning agent, regularly check the wear of each component, and repair or replace them promptly to ensure efficient and stable mold operation.
[0004] Considering that the cooling medium in the cooling channel may form scale or impurities on the inner wall of the channel during long-term circulation, these scales will hinder heat transfer, reduce cooling efficiency, and cause uneven cooling of plastic products, resulting in quality problems such as deformation and warping. Therefore, a rapid cooling molding die for plastic dyes is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a rapid cooling molding die for plastic dyes, which aims to solve the problem that in the prior art, the cooling medium in the cooling channel circulates for a long time, which easily forms scale or impurities on the inner wall of the channel, hindering heat transfer, reducing cooling efficiency, and causing uneven cooling of plastic products, resulting in quality problems such as deformation and warping.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a rapid cooling molding mold for plastic dyes, comprising an upper mold, wherein heat dissipation fins are fixedly connected to the top of the inner surface of the upper mold, a scraper is slidably connected to the outer surface of the heat dissipation fins, the outer surface of the scraper is slidably connected to the top of the inner surface of the upper mold, a hinge rod is hinged to the outer surface of the scraper, a column is fixedly connected to the right side of the outer surface of the hinge rod, a handle is rotatably connected to the middle of the outer surface of the column, and a water circulation assembly is provided on the upper mold.
[0007] As a further description of the above technical solution:
[0008] The water circulation assembly includes an inlet pipe, an inlet chamber, a return pipe, and a return chamber. The inlet pipe is fixedly connected to the right side of the outer surface of the upper mold. The inlet chamber is opened on the right side of the inner surface of the upper mold. The return chamber is opened on the left side of the inner surface of the upper mold. The return pipe is fixedly connected to the left side of the outer surface of the upper mold.
[0009] As a further description of the above technical solution:
[0010] The top of the outer surface of the upper mold is connected to a cover plate, and a sealing strip is fixedly connected to the bottom of the outer surface of the cover plate. A sealing groove is opened at the top of the outer surface of the upper mold, and the outer surface of the sealing strip is inserted into the inner surface of the sealing groove.
[0011] As a further description of the above technical solution:
[0012] The outer surface of the scraper is fixedly connected to a limiting block, and a limiting groove is formed on the top of the inner surface of the upper mold. The outer surface of the limiting block is slidably connected to the inner surface of the limiting groove.
[0013] As a further description of the above technical solution:
[0014] The bottom of the outer surface of the upper mold is connected to the lower mold, and the front end of the outer surface of the lower mold is fixedly connected to the injection tube.
[0015] As a further description of the above technical solution:
[0016] Both the handle and the scraper are provided in two sets.
[0017] As a further description of the above technical solution:
[0018] A placement plate is fixedly connected to the top of the inner surface of the upper mold, and the outer surface of the column is in contact with the top of the outer surface of the placement plate.
[0019] As a further description of the above technical solution:
[0020] Both the inlet pipe and the return pipe are provided in three sets.
[0021] This utility model has the following beneficial effects:
[0022] In this invention, by pulling the handle, the scraper moves laterally via the hinge rod, allowing it to slide along the outer surface of the heat sink fins to scrape away and clean the scale on the surface of the heat sink fins. The entire cleaning process does not require complicated tools, enabling operators to quickly complete the maintenance work, greatly saving the time and labor costs required for mold maintenance, improving the efficiency of production equipment, and reducing the impact of downtime maintenance on production progress.
[0023] 2. In this utility model, there are two sets of handles and scrapers. Users can flexibly choose the cleaning method according to the actual scale buildup on the heat sink fins and production schedule. When only one side of the heat sink fins needs to be cleaned, the corresponding handle can be pulled to clean the single side of the fins precisely. If both sides of the fins need to be maintained, both sets of handles can be pulled at the same time to clean both sides of the heat sink fins simultaneously, meeting the cleaning needs of different scenarios and improving the flexibility and targeting of mold maintenance operations. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the main structure of a rapid cooling molding die for plastic dyes proposed in this utility model.
[0025] Figure 2 This is a schematic diagram of the internal structure of the upper mold of a rapid cooling molding mold for plastic dyes proposed in this utility model.
[0026] Figure 3 This is a schematic diagram of a scraper scraping structure for a rapid cooling molding die for plastic dyes proposed in this utility model.
[0027] Figure 4 This is a cross-sectional view of the upper mold structure of a rapid cooling molding mold for plastic dyes proposed in this utility model.
[0028] Figure 5 This is a schematic diagram of the scraper structure of a rapid cooling molding die for plastic dyes proposed in this utility model.
[0029] Legend:
[0030] 1. Upper mold; 2. Lower mold; 3. Injection tube; 4. Cover plate; 5. Water inlet pipe; 6. Heat dissipation fins; 7. Column; 8. Hinge rod; 9. Scraper; 10. Handle; 11. Sealing groove; 12. Placement plate; 13. Water inlet chamber; 14. Return chamber; 15. Return pipe; 16. Sealing strip; 17. Limiting groove; 18. Limiting block. Detailed Implementation
[0031] 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.
[0032] Reference Figures 1-3 This utility model provides an embodiment of a rapid cooling molding mold for plastic dyes, comprising an upper mold 1. A heat dissipation fin 6 is fixedly connected to the top of the inner surface of the upper mold 1, enabling the heat dissipation fin 6 to conduct heat out of the upper mold 1. Through contact with coolant, the coolant can rapidly dissipate heat. A scraper 9 is slidably connected to the outer surface of the heat dissipation fin 6, allowing the scraper 9 to remove scale from the surface of the heat dissipation fin 6 as it moves laterally along the surface. The outer surface of the scraper 9 is slidably connected to the top of the inner surface of the upper mold 1, allowing the scraper 9 to move laterally along the upper mold 1. The inner surface of mold 1 can move laterally. The outer surface of scraper 9 is hinged with a hinge rod 8, which can drive scraper 9 to move laterally when the hinge rod 8 moves. A column 7 is fixedly connected to the right side of the outer surface of the hinge rod 8, which can drive scraper 9 to move laterally when the column 7 moves vertically. A handle 10 is rotatably connected to the middle of the outer surface of the column 7, which can drive column 7 to move vertically when the handle 10 is pulled. A water circulation component is provided on the upper mold 1, which can conduct heat from the heat dissipation fins 6.
[0033] Reference Figures 2-4 The water circulation assembly includes an inlet pipe 5, an inlet chamber 13, a return pipe 15, and a return chamber 14. The inlet pipe 5 is fixedly connected to the right side of the outer surface of the upper mold 1, allowing the coolant to be poured into the upper mold 1. The inlet chamber 13 is opened on the right side of the inner surface of the upper mold 1, allowing the coolant introduced into the upper mold 1 to enter the inlet chamber 13 and then overflow to the heat dissipation fins 6 area. The return chamber 14 is opened on the left side of the inner surface of the upper mold 1, allowing the coolant inside the upper mold 1 to overflow into the return chamber 14. The return pipe 15 is fixedly connected to the left side of the outer surface of the upper mold 1, allowing the coolant in the return chamber 14 to be discharged from the upper mold 1 through the return pipe 15. There are three sets of both the inlet pipe 5 and the return pipe 15, so that the coolant can be more evenly distributed when entering and exiting the upper mold 1, preventing heat accumulation.
[0034] Reference Figure 1 , Figures 4-5A cover plate 4 is connected to the top of the outer surface of the upper mold 1. When the cover plate 4 is fixed to the upper mold 1 with bolts, it can keep the flow of coolant in the upper mold 1 in a sealed state, preventing coolant leakage. A sealing strip 16 is fixedly connected to the bottom of the outer surface of the cover plate 4, so that the sealing strip 16 can move together when the cover plate 4 moves. A sealing groove 11 is opened at the top of the outer surface of the upper mold 1, so that the sealing strip 16 can be inserted into the top of the outer surface of the upper mold 1. The outer surface of the sealing strip 16 is in contact with the sealing groove 11. The inner surface of the sealing groove 11 is inserted to further enhance the sealing effect. The outer surface of the scraper 9 is fixedly connected to the limiting block 18, so that when the scraper 9 moves laterally, it can simultaneously drive the limiting block 18 to move together. The top of the inner surface of the upper mold 1 is provided with a limiting groove 17, so that the limiting block 18 can move laterally along the specified position. The outer surface of the limiting block 18 is slidably connected to the inner surface of the limiting groove 17, so that the scraper 9 can always move laterally along the specified position under the restriction of the limiting groove 17 by the limiting block 18.
[0035] Reference Figures 1-3 The lower mold 2 is connected to the bottom of the outer surface of the upper mold 1, so that when the upper mold 1 and the lower mold 2 are closed, a cavity is formed for injection molding. The same device inside the upper mold 1 is also present in the lower mold 2, allowing for simultaneous cooling of both molds. An injection tube 3 is fixedly connected to the front end of the outer surface of the lower mold 2, allowing the injection molding liquid to be injected into the cavity created after the upper and lower molds are closed. Two sets of handles 10 and scrapers 9 are provided. Depending on the needs, you can choose to pull both sets of handles 10 simultaneously to drive both sets of scrapers 9 to scrape the two sets of heat dissipation fins 6, or pull only one set of handles 10 to clean one set of heat dissipation fins 6. The top of the inner surface of the upper mold 1 is fixedly connected to the placement plate 12, which provides a fixed support for the placement plate 12 through the top of the inner surface of the upper mold 1. The outer surface of the column 7 is in contact with the top of the outer surface of the placement plate 12, so that the column 7 can be lowered to the designated position by the restriction of the placement plate 12, preventing the column 7 from blocking the flow of coolant.
[0036] Working principle: When it is necessary to clean the heat dissipation fins 6, first unscrew the fixing bolts on the cover plate 4, then remove the cover plate 4, and select the degree of cleaning as needed. For example, if only one side of the heat dissipation fins 6 needs to be cleaned, simply pull the handle 10 on the corresponding side. Driven by the hinge rod 8, it will drive a set of scrapers 9 to scrape and clean the heat dissipation fins 6 on one side. If it is necessary to clean both sides of the heat dissipation fins 6 at the same time, pull both sets of handles 10 at the same time. Driven by the two sets of hinge rods 8, it will drive the two sets of scrapers 9 to scrape and clean the heat dissipation fins 6 on both sides.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 rapid cooling molding die for plastic dyes, comprising an upper die (1), characterized in that: A heat dissipation fin (6) is fixedly connected to the top of the inner surface of the upper mold (1). A scraper (9) is slidably connected to the outer surface of the heat dissipation fin (6). The outer surface of the scraper (9) is slidably connected to the top of the inner surface of the upper mold (1). A hinge rod (8) is hinged to the outer surface of the scraper (9). A column (7) is fixedly connected to the right side of the outer surface of the hinge rod (8). A handle (10) is rotatably connected to the middle of the outer surface of the column (7). A water circulation component is provided on the upper mold (1).
2. The rapid cooling molding die for plastic dyes according to claim 1, characterized in that: The water circulation assembly includes an inlet pipe (5), an inlet chamber (13), a return pipe (15), and a return chamber (14). The inlet pipe (5) is fixedly connected to the right side of the outer surface of the upper mold (1). The inlet chamber (13) is opened on the right side of the inner surface of the upper mold (1). The return chamber (14) is opened on the left side of the inner surface of the upper mold (1). The return pipe (15) is fixedly connected to the left side of the outer surface of the upper mold (1).
3. The rapid cooling molding die for plastic dyes according to claim 1, characterized in that: The top of the outer surface of the upper mold (1) is connected to a cover plate (4), and a sealing strip (16) is fixedly connected to the bottom of the outer surface of the cover plate (4). A sealing groove (11) is opened at the top of the outer surface of the upper mold (1), and the outer surface of the sealing strip (16) is inserted into the inner surface of the sealing groove (11).
4. A rapid cooling molding die for plastic dyes according to claim 1, characterized in that: The outer surface of the scraper (9) is fixedly connected to a limiting block (18), and a limiting groove (17) is opened on the top of the inner surface of the upper mold (1). The outer surface of the limiting block (18) is slidably connected to the inner surface of the limiting groove (17).
5. A rapid cooling molding die for plastic dyes according to claim 1, characterized in that: The bottom of the outer surface of the upper mold (1) is connected to the lower mold (2), and the front end of the outer surface of the lower mold (2) is fixedly connected to the injection tube (3).
6. A rapid cooling molding die for plastic dyes according to claim 1, characterized in that: Both the handle (10) and the scraper (9) are provided in two sets.
7. A rapid cooling molding die for plastic dyes according to claim 1, characterized in that: The upper mold (1) has a placement plate (12) fixedly connected to the top of its inner surface, and the outer surface of the column (7) is in contact with the top of the outer surface of the placement plate (12).
8. A rapid cooling molding die for plastic dyes according to claim 2, characterized in that: Both the inlet pipe (5) and the return pipe (15) are provided with three sets.