Multi-cooling thermoplastic mold based on plastic processing

Abstract

The invention discloses a multi-cooling thermoplastic mold based on plastic processing, and relates to the technical field of plastic processing, the multi-cooling thermoplastic mold comprises a processing mold assembly, the processing mold assembly comprises a lower positioning frame, a first lower mold is fixed in the lower positioning frame, a cooling groove is formed in the lower positioning frame, and a first upper mold and a cooling assembly are arranged at the top of the lower positioning frame; and the positioning frame is arranged on the lower positioning frame and comprises a fixed frame fixed on the lower positioning frame. Through the arrangement of the cooling assembly, before the first upper mold and the first lower mold are closed, uniform pre-cooling treatment on the cooling tank can be completed in cooperation with high-speed airflow and atomized liquid drops, after the first upper mold and the first lower mold are closed and injection is completed, high-speed cooling treatment is conducted through the airflow and the liquid drops, and cooling forming of materials is facilitated; and when the first upper mold and the first lower mold are demolded, slow cooling treatment is performed by utilizing airflow and liquid drops, so that the material forming quality is ensured, and multi-stage cooling treatment is realized.

Description

Technical Field

[0001] This invention relates to the field of plastic processing technology, and in particular to a multi-cooling thermoplastic mold based on plastic processing. Background Technology

[0002] In the plastics processing, injection molding is a common process in which molten plastic is injected into a closed mold cavity under high pressure, and the product is obtained after cooling and solidification. In actual processing, in order to facilitate the combination of two finished products, hot pressing is also used to process the molded plastic products.

[0003] In order to ensure the cooling effect, existing thermoplastic molds will have corresponding cooling channels pre-set on the mold to adapt to the corresponding plastic products. In actual processing, air or refrigerant is usually introduced for cooling after the material is injected. However, in industrial processing, since the mold needs to continuously inject-cool and demold, the initial temperature distribution of each stage of the mold is easily different, which affects the molding quality of plastic products and makes it difficult to carry out multi-stage cooling treatment. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing multi-cooling thermoplastic molds based on plastic processing, the present invention is proposed.

[0006] Therefore, the problem to be solved by the present invention is how to address the issue that in the prior art, thermoplastic molds, due to the need for continuous injection-cooling-demolding, are prone to differences in the initial temperature distribution of each mold stage, which affects the molding quality of plastic products.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a multi-cooling thermoplastic mold based on plastic processing, comprising: a processing mold assembly including a lower positioning frame, a first lower mold fixed inside the lower positioning frame, a cooling groove formed on the lower positioning frame, a first upper mold disposed on the top of the lower positioning frame; a cooling assembly disposed on the lower positioning frame, including a fixing frame fixed to the lower positioning frame, an air inlet groove formed on the fixing frame, a driving component disposed on the fixing frame, the driving component including a rotating rod rotatably connected to the fixing frame, a lever fixed to the outer ring of the rotating rod, and a [missing information - likely a device or component] fixed to the top of the fixing frame. An atomizing component is provided, wherein a guide plate is fixed within the fixed frame, the guide plate has a guide groove, a transmission component is provided within the fixed frame, the transmission component includes a partition plate fixed to the bottom of the first upper template, a displacement plate is slidably connected to one side of the partition plate, a positioning component is provided at the bottom of the displacement plate, the positioning component includes a positioning head slidably connected to the displacement plate, and a hot pressing mold assembly is provided on one side of the processing mold assembly, including a second lower template located on one side of the lower positioning frame, a second lower mold fixed on the second lower template, a second upper template provided at the top of the second lower template, and a second upper mold fixed at the bottom of the second upper template.

[0008] As a preferred embodiment of the multi-cooling thermoplastic mold based on plastic processing according to the present invention, the processing mold assembly further includes a first lower template located at the bottom of the lower positioning frame, the lower positioning frame being bolted to the first lower template, an ejector pin being slidably connected to the first lower template, a first upper template being provided at the top of the first lower template, an injection head being bolted to the center of the top of the first upper template, the first upper mold being bolted to the bottom of the injection head, and the injection head, the upper mold groove of the first upper mold, and the upper mold groove of the first lower mold being in a connected state to meet the injection molding requirements of plastic processing.

[0009] As a preferred embodiment of the multi-cooling thermoplastic mold based on plastic processing described in this invention, the fixing frame is located in front of the cooling tank and covers the cooling tank. An air intake bucket is bolted to one side of the fixing frame. The air intake end of the air intake bucket is connected to an external air pump through a pipe to introduce gas into the air intake tank. A protective cover is bolted to one side of the fixing frame to cover and protect the driving component. The protective cover is located at the bottom of the air intake bucket. A collection box is bolted to the bottom of the fixing frame.

[0010] As a preferred embodiment of the multi-cooling thermoplastic mold based on plastic processing described in this invention, the driving component further includes a fixing frame fixed to the guide plate, a toothed plate provided on the top of the fixing frame, an electric push rod provided on the bottom of the fixing frame, the electric push rod being bolted to the guide plate, a gear being meshed and driven on the top of the toothed plate, and the gear being fixed to the outer ring of the rotating rod.

[0011] As a preferred embodiment of the multi-cooling thermoplastic mold based on plastic processing described in this invention, the displacement plate is slidably connected to the partition plate and sealed, the partition plate has a through groove, a grid plate is fixed in the through groove, a spring is provided between the partition plate and the displacement plate, the top end of the spring is fixed to the partition plate, the bottom end of the spring is fixed to the displacement plate, and the displacement plate has a through hole.

[0012] As a preferred embodiment of the multi-cooling thermoplastic mold based on plastic processing according to the present invention, the positioning component further includes an auxiliary frame fixed to the bottom of the displacement plate, a crossbar fixed inside the auxiliary frame, and the positioning head slidably connected to the crossbar.

[0013] As a preferred embodiment of the multi-cooling thermoplastic mold based on plastic processing described in this invention, a spring is sleeved on the crossbar, one end of the spring is fixed to the auxiliary frame, and the other end of the spring is fixed to the positioning head.

[0014] As a preferred embodiment of the multi-cooling thermoplastic mold based on plastic processing described in this invention, the partition plate and the displacement plate are slidably connected within the fixed frame and are sealed to ensure the leakage-proof transmission of the cooling medium.

[0015] As a preferred embodiment of the multi-cooling thermoplastic mold based on plastic processing described in this invention, the top of the guide plate is provided with a vent hole to meet the air supply space requirements of the air inlet groove, the guide groove includes a first arc groove opened on one side of the guide plate, a second arc groove opened at the bottom end of the first arc groove, and a third arc groove opened on the side of the second arc groove away from the first arc groove.

[0016] As a preferred embodiment of the multi-cooling thermoplastic mold based on plastic processing according to the present invention, a sealing plate is fixed inside the fixed frame, and the transmission component is located between the fixed frame and the sealing plate.

[0017] The beneficial effects of this invention are as follows: by setting up the cooling components, the cooling tank can be uniformly pre-cooled by high-speed airflow and atomized droplets before the first upper mold and the first lower mold are closed. After the first upper mold and the first lower mold are closed and injection is completed, high-speed cooling is carried out by airflow and droplets, which is beneficial to the cooling and molding of the material. When the first upper mold and the first lower mold are demolded, slow cooling is carried out by airflow and droplets to ensure the molding quality of the material and realize multi-stage cooling treatment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a scene diagram of a multi-cooling thermoplastic mold based on plastic processing.

[0020] Figure 2 This is a structural diagram of a multi-cooling thermoplastic mold based on plastic processing.

[0021] Figure 3 This is a perspective view of the mold assembly and cooling assembly of a multi-cooling thermoplastic mold for plastic processing when they are separated.

[0022] Figure 4 This is a breakdown diagram of the cooling components of a multi-cooling thermoplastic mold used in plastic processing.

[0023] Figure 5 This is a separate diagram of the fixing frame, guide plate, and sealing plate of a multi-cooling thermoplastic mold for plastic processing.

[0024] Figure 6 Another perspective view of the guide plate for a multi-cooling thermoplastic mold based on plastic processing.

[0025] Figure 7 This is a diagram showing the separation of the transfer components in a multi-cooling thermoplastic mold based on plastic processing.

[0026] Figure 8 This is a schematic diagram of the initial state of a multi-cooling thermoplastic mold partition and displacement plate based on plastic processing.

[0027] In the diagram: 1. Machining mold assembly; 11. First lower mold plate; 12. First upper mold plate; 121. Injection head; 13. Lower positioning frame; 131. Cooling tank; 14. Ejector pin; 15. First upper mold; 16. First lower mold; 2. Cooling assembly; 21. Fixing frame; 211. Air inlet; 212. Protective cover; 213. Air duct; 214. Collection box; 22. Drive component; 221. Fixing bracket; 222. Gear plate; 223. Electric push rod; 224. Rotating rod; 225. Gear; 226. Actuator; 23. Atomizing component; 24. Transmission component; 25. 1. Partition plate; 2411. Through groove; 2412. Spring piece; 2413. Grating plate; 242. Displacement plate; 2421. Through hole; 243. Positioning component; 2431. Auxiliary frame; 2432. Crossbar; 2433. Spring; 2434. Positioning head; 25. Guide plate; 251. Vent hole; 252. Guide groove; 2521. First arc groove; 2522. Second arc groove; 2523. Third arc groove; 26. Sealing plate; 3. Hot press mold assembly; 31. Second lower template; 311. Second lower mold; 32. Second upper template; 321. Second upper mold. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1, referring to Figure 1 and Figure 2This is the first embodiment of the present invention. This embodiment provides a multi-cooling thermoplastic mold based on plastic processing. The multi-cooling thermoplastic mold based on plastic processing includes a processing mold assembly 1, a cooling assembly 2, and a hot pressing mold assembly 3. By setting the cooling assembly 2, uniform pre-cooling treatment can be completed before mold closing with the help of high-speed airflow and atomized droplets. After mold closing and injection, high-speed cooling treatment is carried out by airflow and droplets, which is beneficial to the cooling and molding of the material. During demolding, slow cooling treatment is carried out by airflow and droplets to ensure the molding quality of the material and realize multi-stage cooling treatment.

[0032] Specifically, the processing mold assembly 1 includes a lower positioning frame 13, a first lower mold 16 fixed inside the lower positioning frame 13, a cooling groove 131 opened on the lower positioning frame 13, and a first upper mold 15 provided on the top of the lower positioning frame 13.

[0033] Specifically, the cooling component 2 is mounted on the lower positioning frame 13 and includes a fixed frame 21 fixed to the lower positioning frame 13. The fixed frame 21 has an air inlet slot 211. The fixed frame 21 is equipped with a driving component 22, which includes a rotating rod 224 rotatably connected to the fixed frame 21. A toggle 226 is fixed to the outer ring of the rotating rod 224. An atomizing component 23 is fixed to the top of the fixed frame 21. A guide plate 25 is fixed inside the fixed frame 21. A guide groove 252 is provided on the guide plate 25. A transmission component 24 is installed inside the fixed frame 21. The transmission component 24 includes a partition 241 fixed to the bottom of the first upper template 12. A displacement plate 242 is slidably connected to one side of the partition 241. A positioning component 243 is provided at the bottom of the displacement plate 242. The positioning component 243 includes a positioning head 2434 slidably connected to the displacement plate 242.

[0034] The atomizing component 23 includes an integrated tube located at the top of the fixed frame 21 and several atomizing nozzles fixed at the bottom of the integrated tube. The multiple atomizing nozzles all penetrate into the fixed frame 21 and are evenly distributed on the fixed frame 21. The water inlet end of the integrated tube is connected to an external water pump. When the external water pump is working, cooling water enters the integrated tube and passes through the multiple atomizing nozzles to form tiny water droplets that are evenly distributed in the fixed frame 21.

[0035] Example 2, refer to Figures 2-8 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0036] Specifically, the processing mold assembly 1 also includes a first lower template 11 located at the bottom of the lower positioning frame 13. The lower positioning frame 13 is bolted to the first lower template 11. An ejector pin 14 is slidably connected to the first lower template 11. A first upper template 12 is provided at the top of the first lower template 11. An injection head 121 is bolted to the center of the top of the first upper template 12. A first upper mold 15 is bolted to the bottom of the injection head 121. The injection head 121, the upper mold groove of the first upper mold 15, and the upper mold groove of the first lower mold 16 are all in a connected state to meet the injection molding requirements of plastic processing.

[0037] After the first upper mold 15 and the first lower mold 16 are closed, the material can be injected through the injection head 121 and placed in the mold groove between the first upper mold 15 and the first lower mold 16, where it is cooled and formed with the help of the cooling component 2.

[0038] In practical applications, the first upper mold 15 has a built-in cold groove to meet the space requirements for cooling medium transmission. After the first upper mold 15 and the first lower mold 16 are closed, the cold groove on the first upper mold 15 and the cooling groove 131 are aligned. The cooling groove 131 is a pre-made cold groove on the first lower mold 16. When the cooling medium is introduced and the cold groove on the first upper mold 15 is aligned with the cooling groove 131, the cooling medium will be diverted into the cooling groove 131 and the cold groove on the first upper mold 15.

[0039] Specifically, the fixing frame 21 is located in front of the cooling tank 131 and covers the cooling tank 131. An air intake bucket 213 is bolted to one side of the fixing frame 21. The air intake end of the air intake bucket 213 is connected to an external air pump through a pipe to introduce gas into the air intake slot 211. A protective cover 212 is bolted to one side of the fixing frame 21 to cover and protect the drive component 22.

[0040] A sealing treatment is applied between the fixed frame 21 and the lower positioning frame 13 to prevent moisture from escaping.

[0041] When the external air pump is working, the gas will be introduced through the air duct 213 and evenly diffused into the fixed frame 21 through the air inlet groove 211.

[0042] The protective cover 212 can shield and protect the drive component 22 from external dust and impurities. The protective cover 212 is located at the bottom of the air intake hopper 213, so the two do not interfere with each other.

[0043] Specifically, the drive component 22 also includes a fixing bracket 221 fixed on the guide plate 25. The top of the fixing bracket 221 is provided with a toothed plate 222, and the bottom of the fixing bracket 221 is provided with an electric push rod 223. The electric push rod 223 is bolted to the guide plate 25. The top of the toothed plate 222 is engaged with a gear 225, and the gear 225 is fixed to the outer ring of the rotating rod 224.

[0044] The fixed frame 221, toothed plate 222, electric push rod 223 and gear 225 are all located outside the fixed frame 21 and protected by the protective cover 212. The gear 225 is located inside the guide plate 25, and the rotating rod 224 is rotatably connected to the fixed frame 21 and the guide plate 25 through a sealed bearing, which ensures the stable rotation of the rotating rod 224 while achieving the purpose of sealing and preventing leakage.

[0045] The electric actuator 223 uses Electrak-XD protective components with an IP67 protection rating, which can withstand long-term spraying, immersion or high-pressure flushing water vapor conditions. It is not prone to internal corrosion and short circuits. At the same time, the electrical interface uses a waterproof connector to prevent water ingress and short circuits at the wiring points.

[0046] Both sides of the bottom of the toothed plate 222 are fixed with protrusions, which are slidably connected to the fixed frame 221 to ensure the displacement stability of the toothed plate 222. When the electric push rod 223 is extended and retracted, it drives the toothed plate 222 to move. Then, under the meshing transmission of the gear 225, the linkage rod 224 rotates to drive the lever 226 to rotate.

[0047] As shown in the attached diagram of the instruction manual. Figure 6 As shown, the toggle 226 includes an integrated block fixed to the rotating rod 224, and four toggle bars fixed to the outer ring of the integrated block, with both sides of the toggle bars being arc-shaped.

[0048] Specifically, the displacement plate 242 is slidably connected to the partition plate 241 and sealed. The partition plate 241 has a through groove 2411, and a grid plate 2413 is fixed in the through groove 2411. A spring piece 2412 is provided between the partition plate 241 and the displacement plate 242. The top end of the spring piece 2412 is fixed to the partition plate 241, and the bottom end of the spring piece 2412 is fixed to the displacement plate 242. The displacement plate 242 has a through hole 2421.

[0049] The grating plate 2413 is actually composed of several short rods, and there are gaps between the short rods to allow water vapor to pass through.

[0050] As shown in the attached diagram of the instruction manual. Figure 8 As shown, under the elastic support of the spring piece 2412, in its natural state, the through hole 2421 coincides with the through groove 2411, and the through hole 2421 is located slightly below the through groove 2411.

[0051] Specifically, the positioning component 243 also includes an auxiliary frame 2431 fixed to the bottom of the displacement plate 242, a crossbar 2432 fixed inside the auxiliary frame 2431, and a positioning head 2434 slidably connected to the crossbar 2432.

[0052] Specifically, a spring 2433 is fitted on the crossbar 2432. One end of the spring 2433 is fixed to the auxiliary frame 2431, and the other end of the spring 2433 is fixed to the positioning head 2434.

[0053] Specifically, both the partition plate 241 and the displacement plate 242 are slidably connected within the fixed frame 21 and are sealed to ensure the leakage prevention of the cooling medium.

[0054] Specifically, the top of the guide plate 25 is provided with a vent hole 251 to meet the air supply space requirements of the air inlet slot 211. The guide slot 252 includes a first arc slot 2521 opened on one side of the guide plate 25, a second arc slot 2522 opened at the bottom of the first arc slot 2521, and a third arc slot 2523 opened on the side of the second arc slot 2522 away from the first arc slot 2521.

[0055] The positioning head 2434 is adapted to the guide groove 252 and is kept in the initial position by the elastic connection of the spring 2433. The presence of the crossbar 2432 ensures the stability of the positioning head 2434's movement. Under this design, when the partition plate 241 and the displacement plate 242 move down together and enter the fixed frame 21, the positioning head 2434 will first enter the first arc groove 2521. As the partition plate 241 and the displacement plate 242 move down further, the positioning head 2434 gradually enters the second arc groove 2522. With the action of the gear 225 and the movement on the partition plate 241 and the displacement plate 242, the positioning head 2434 will gradually enter the third arc groove 2523. The whole process is adapted to the mold closing-injection molding-demolding process of the first upper mold 15 and the first lower mold 16.

[0056] As shown in the attached diagram of the instruction manual. Figure 6 As shown, the central angle of the first arc groove 2521 is smaller than the central angle of the third arc groove 2523, that is, the first arc groove 2521 is steeper than the third arc groove 2523, and the third arc groove 2523 is gentler than the first arc groove 2521.

[0057] Specifically, a sealing plate 26 is fixed inside the fixed frame 21, and the transmission component 24 is located between the fixed frame 21 and the sealing plate 26.

[0058] The sealing plate 26 facilitates the smooth downward movement of the transmission component 24 into the fixed frame 21 without affecting the water vapor transmission.

[0059] The guide plate 25, the transmission component 24 and the sealing plate 26 are distributed sequentially within the fixed frame 21. That is, the gas introduced through the air inlet groove 211 will be transmitted sequentially through the vent hole 251, the through hole 2421, the spring piece 2412 and the sealing plate 26, and finally enter the built-in cold groove on the first upper mold 15 through the cooling groove 131 to complete the cooling of the first upper mold 15.

[0060] Example 3, referring to Figures 2-8 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0061] Specifically, the hot press mold assembly 3 is located on one side of the processing mold assembly 1, including a second lower template 31 located on one side of the lower positioning frame 13, a second lower mold 311 fixed on the second lower template 31, a second upper template 32 provided on the top of the second lower template 31, and a second upper mold 321 fixed at the bottom of the second upper template 32.

[0062] The bottom of the second upper mold 321 is embedded with an electric heating strip, and the shape of the electric heating strip conforms to the shape of the plastic product. When two plastic products to be heat-sealed are placed on the second lower mold 311, the electric heating strip that works in conjunction with the second upper mold 321 is driven to move down, and the heat sealing process can be completed.

[0063] In practical applications, the first lower mold plate 11 and the second lower mold plate 31 are both bolted to the same workbench, while the first upper mold plate 12 and the second upper mold plate 32 are both bolted to the driver (such as a hydraulic cylinder). When the driver is working, the mold closing or demolding of the first upper mold 15 and the first lower mold 16, as well as the mold closing or demolding of the second lower mold 311 and the second upper mold 321 can be completed.

[0064] The bottom of the fixed frame 21 is bolted to a collection box 214. The connection between the collection box 214 and the fixed frame 21 is sealed. The bottom of the collection box 214 is fixed with a drain valve, which is used to transfer the temporarily stored water to the water tank of the external water pump when it is open, so as to achieve the purpose of recycling. Under the premise of meeting the normal cooling needs, it effectively saves water consumption and is more in line with the actual use needs.

[0065] The warm water droplets flowing out of the drain end of the cooling tank 131 enter the external gas-liquid separator to complete the separation of gas and liquid.

[0066] During use, all components are in their initial installation state. First, the first upper mold plate 12 is driven to move down, causing the first upper mold 15 to move down and close with the first lower mold 16. Then, the material is injected between the first upper mold 15 and the first lower mold 16 through the injection head 121. At the same time, the cooling component 2 is used for cooling. After molding, the first upper mold 15 moves up and separates from the first lower mold 16 to achieve demolding. Then, the two plastic products are placed between the second lower mold 311 and the second upper mold 321. The second upper mold 321 is controlled to move down and the corresponding heating strip is activated to complete the heat sealing operation.

[0067] During the downward movement of the first upper mold 15, the partition plate 241 and the displacement plate 242 will enter the fixed frame 21, while the positioning head 2434 will enter the first arc groove 2521. The electric push rod 223 will retract synchronously, driving the toothed plate 222 to move laterally. With the cooperation of the gear 225, the rotating rod 224 and the actuator 226 will rotate, and gas will be introduced through the air hopper 213 and atomized cooling water will be introduced through the atomizing element 23.

[0068] In the first stage, when the first upper mold 15 moves down to align with the first lower mold 16, the rotating actuator 226 can move the positioning head 2434 downward within the first arc groove 2521, causing the displacement plate 242 to move up and down on the partition 241. The spring piece 2412 is stretched, and the through hole 2421 first coincides with the through groove 2411. Then, the through hole 2421 and the through groove 2411 are completely misaligned. When the actuator 226 no longer contacts the positioning head 2434, the spring piece 2412 and the spring 2433 will cause the displacement plate 242 and the positioning head 2434 to reset under the action of the spring piece 2412 and the spring 2433. This cycle is repeated to achieve intermittent water vapor entering the cooling tank 131, which satisfies the uniform pre-cooling treatment of the first upper mold 15 and the first lower mold 16, reducing the temperature to a uniform preset value and avoiding uneven filling and surface defects caused by temperature difference.

[0069] In the second stage, the first upper mold 15 and the first lower mold 16 are closed and injection molded. When continuous cooling is required, the positioning head 2434 is located in the second arc groove 2522. Since the positioning head 2434 is closer to the actuator 226, the actuator 226 will push the positioning head 2434 into the third arc groove 2523. The spring piece 2412 is compressed, and the through hole 2421 crosses the grid plate 2413 and aligns with the upper part of the through groove 2411. The overall stroke is long, which allows the atomized water droplets and gas to be evenly distributed on the inner wall of the lower positioning frame 13, thereby achieving continuous cooling treatment, rapid and uniform solidification, reducing shrinkage differences, and preventing demolding deformation caused by insufficient cooling. It is especially suitable for thin-walled and complex structure products.

[0070] In the third stage, after cooling and molding are completed, the first upper mold 15 and the first lower mold 16 are demolded and separated. At this time, the positioning head 2434 moves upward in the third arc groove 2523. At this time, the actuator 226 moves the positioning head 2434 upward, but the stroke gradually decreases, so that the through hole 2421 moves on the grid plate 2413. With the spacing design of the grid plate 2413, the atomized water droplets and gas can slowly enter the cooling tank 131 to complete the auxiliary cooling treatment, reducing the warping and cracking rate.

[0071] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A multi-cooling thermoplastic mold based on plastic processing, characterized in that: include, The processing mold assembly (1) includes a lower positioning frame (13), a first lower mold (16) is fixed inside the lower positioning frame (13), a cooling groove (131) is provided on the lower positioning frame (13), and a first upper mold (15) is provided on the top of the lower positioning frame (13). A cooling assembly (2) is mounted on a lower positioning frame (13) and includes a fixed frame (21) fixed to the lower positioning frame (13). An air inlet slot (211) is provided on the fixed frame (21). A driving component (22) is provided on the fixed frame (21). The driving component (22) includes a rotating rod (224) rotatably connected to the fixed frame (21). A toggle (226) is fixed to the outer ring of the rotating rod (224). An atomizing component (23) is fixed to the top of the fixed frame (21). A guide plate (25) is fixed inside, and a guide groove (252) is provided on the guide plate (25). A transmission component (24) is provided inside the fixed frame (21). The transmission component (24) includes a partition plate (241) fixed to the bottom of the first upper template (12). A displacement plate (242) is slidably connected to one side of the partition plate (241). A positioning component (243) is provided at the bottom of the displacement plate (242). The positioning component (243) includes a positioning head (2434) slidably connected to the displacement plate (242).

2. The multi-cooling thermoplastic mold based on plastic processing as described in claim 1, characterized in that: The processing mold assembly (1) also includes a first lower template (11) located at the bottom of the lower positioning frame (13). The lower positioning frame (13) is bolted to the first lower template (11). An ejector pin (14) is slidably connected to the first lower template (11). A first upper template (12) is provided on the top of the first lower template (11). An injection head (121) is bolted to the center of the top of the first upper template (12). The first upper mold (15) is bolted to the bottom of the injection head (121). The injection head (121), the upper mold groove of the first upper mold (15), and the upper mold groove of the first lower mold (16) are all in a connected state to meet the injection molding requirements of plastic processing.

3. The multi-cooling thermoplastic mold based on plastic processing as described in claim 1, characterized in that: The fixed frame (21) is located in front of the cooling tank (131) and covers the cooling tank (131). An air intake bucket (213) is bolted to one side of the fixed frame (21). The air intake end of the air intake bucket (213) is connected to an external air pump through a pipe to introduce gas into the air intake slot (211). A protective cover (212) is bolted to one side of the fixed frame (21) to cover and protect the drive component (22). The protective cover (212) is located at the bottom of the air intake bucket (213). A collection box (214) is bolted to the bottom of the fixed frame (21).

4. The multi-cooling thermoplastic mold based on plastic processing as described in claim 3, characterized in that: The drive unit (22) also includes a fixing frame (221) fixed on the guide plate (25). The top of the fixing frame (221) is provided with a toothed plate (222), and the bottom of the fixing frame (221) is provided with an electric push rod (223). The electric push rod (223) is bolted to the guide plate (25). The top of the toothed plate (222) is meshed with a gear (225), and the gear (225) is fixed to the outer ring of the rotating rod (224).

5. The multi-cooling thermoplastic mold based on plastic processing as described in claim 1, characterized in that: The displacement plate (242) is slidably connected to the partition plate (241) and sealed. The partition plate (241) has a through groove (2411) and a grid plate (2413) is fixed in the through groove (2411). A spring piece (2412) is provided between the partition plate (241) and the displacement plate (242). The top end of the spring piece (2412) is fixed to the partition plate (241), and the bottom end of the spring piece (2412) is fixed to the displacement plate (242). The displacement plate (242) has a through hole (2421).

6. The multi-cooling thermoplastic mold based on plastic processing as described in claim 5, characterized in that: The positioning component (243) also includes an auxiliary frame (2431) fixed to the bottom of the displacement plate (242), a crossbar (2432) is fixed inside the auxiliary frame (2431), and the positioning head (2434) is slidably connected to the crossbar (2432).

7. The multi-cooling thermoplastic mold based on plastic processing as described in claim 6, characterized in that: A spring (2433) is fitted on the crossbar (2432). One end of the spring (2433) is fixed to the auxiliary frame (2431), and the other end of the spring (2433) is fixed to the positioning head (2434).

8. The multi-cooling thermoplastic mold based on plastic processing as described in claim 7, characterized in that: The processing mold assembly (1) is provided with a hot press mold assembly (3) on one side. The hot press mold assembly (3) includes a second lower template (31) located on one side of the lower positioning frame (13). A second lower mold (311) is fixed on the second lower template (31). A second upper template (32) is provided on the top of the second lower template (31). A second upper mold (321) is fixed at the bottom of the second upper template (32).

9. The multi-cooling thermoplastic mold based on plastic processing as described in claim 1, characterized in that: The top of the guide plate (25) is provided with a vent hole (251) to meet the air supply space requirements of the air inlet slot (211). The guide slot (252) includes a first arc slot (2521) opened on one side of the guide plate (25), a second arc slot (2522) opened at the bottom of the first arc slot (2521), and a third arc slot (2523) opened on the side of the second arc slot (2522) away from the first arc slot (2521).

10. The multi-cooling thermoplastic mold based on plastic processing as described in claim 1, characterized in that: A sealing plate (26) is fixed inside the fixed frame (21), and the transmission component (24) is located between the fixed frame (21) and the sealing plate (26).

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