A rapid cooling mold

Abstract

The utility model discloses a kind of rapid cooling mould, it is related to rapid cooling mould technical field, including upper mould, the bottom of the upper mould is provided with buffer assembly, the bottom of the upper mould is movably connected with lower mould, the top of the lower mould is provided with buffer assembly, the inside of the upper mould and the lower mould is provided with water cooling assembly, the buffer assembly includes first recess, and first recess is opened in the inside of lower mould, the bottom of the first recess is fixedly connected with spring, and one end of the spring is fixedly connected with buffer pad. The rapid cooling mould is driven to bump by moving the upper mould downwards, so that the second recess in the bump precisely engages the buffer pad, this process realizes the downward extrusion of buffer pad, and then triggers spring extension to buffer pressure, this design can effectively avoid the damage of mould caused by excessive instantaneous impact force when the upper and lower moulds are closed, prolong the service life of mould, reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of rapid cooling mold technology, specifically a rapid cooling mold. Background Technology

[0002] Rapid cooling molds are an advanced mold technology that improves molding efficiency and product quality by dynamically controlling temperature. Widely used in 3C electronics, automotive, and home appliance industries, its core principle lies in the alternating circulation of high-temperature, high-pressure cooling media. Before injection molding, the mold cavity surface is heated to above the glass transition temperature of the plastic. After melt filling, the temperature is rapidly switched to a lower temperature for solidification. This technology offers significant advantages: firstly, it eliminates surface defects such as weld lines and flow marks, achieving mirror-level precision; secondly, it improves material properties, such as increasing the crystallinity and internal structural strength of glass fiber composites; and thirdly, it supports the replication of fine textures, making it suitable for manufacturing high-gloss appearance parts.

[0003] However, in the existing rapid cooling mold technology, when the mold is closed under high pressure, the rigid contact between the core and the cavity can easily lead to local stress concentration. Long-term use may cause fatigue fracture of the mold material. The rigid closure without buffer will also accelerate mold wear, shorten service life, and increase downtime maintenance costs. Therefore, we need a rapid cooling mold. Utility Model Content

[0004] The purpose of this invention is to provide a rapid cooling mold to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid cooling mold, including an upper mold, a buffer assembly at the bottom of the upper mold, a lower mold movably connected to the bottom of the upper mold, a buffer assembly at the top of the lower mold, and water cooling assemblies inside both the upper mold and the lower mold. The buffer assembly includes a first groove, which is located inside the lower mold. A spring is fixedly connected to the bottom of the first groove, a buffer pad is fixedly connected to one end of the spring, a protrusion is engaged with the top of the buffer pad, and a second groove is formed inside the protrusion.

[0006] Preferably, the spring and the buffer pad form an elastic structure, with one end of the spring extending into the bottom of the first groove in the lower mold for fixation, and the other end of the spring being fixed to the bottom of the buffer pad.

[0007] Preferably, the buffer pad forms an engaging structure with the upper mold through protrusions, and the shape and size of the buffer pad match the shape and size of the first groove, and the outer wall of the buffer pad is fitted to the inner wall of the first groove.

[0008] Preferably, the water-cooling assembly includes a water-cooling inlet, which is installed at one end of an inlet pipe. One end of the inlet pipe is fixedly connected to a first water-cooling pipe via a mold inlet. One end of the first water-cooling pipe is fixedly connected to a first outlet pipe. A second water-cooling pipe is fixedly connected to the outer wall of the first water-cooling pipe. One end of the second water-cooling pipe is fixedly connected to a second outlet pipe. A third water-cooling pipe is fixedly connected to the outer wall of the second water-cooling pipe. One end of the third water-cooling pipe is fixedly connected to a third outlet pipe.

[0009] Preferably, the water inlet pipe forms a fixed structure with the first water cooling pipe and the first water outlet pipe, and one end of the water inlet pipe is fixed to one end of the first water cooling pipe, and the other end of the first water cooling pipe is fixed to the first water outlet pipe.

[0010] Preferably, the first water-cooling pipe forms a fixed structure with the second water-cooling pipe and the second water outlet pipe, and one end of the second water-cooling pipe is fixed to the outer wall of the first water-cooling pipe, and the other end of the second water-cooling pipe is fixed to one end of the second water outlet pipe.

[0011] Preferably, the second water-cooling pipe forms a fixed structure with the third water-cooling pipe and the third water outlet pipe, and one end of the third water-cooling pipe is fixed to one end of the second water-cooling pipe, and the other end of the third water-cooling pipe is fixed to one end of the third water outlet pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this rapid cooling mold,

[0013] (1) By moving the upper mold downward, the protrusion is driven to make the second groove inside the protrusion precisely engage with the buffer pad. This process realizes the downward compression of the buffer pad, which in turn triggers the spring to extend and retract to buffer the pressure. This design can effectively avoid mold damage caused by excessive instantaneous impact force when the upper and lower molds close, extend the service life of the mold, and reduce maintenance costs.

[0014] (2) By introducing cooling water into the inlet pipe through the water cooling inlet and then distributing it to each water cooling pipe, a comprehensive and uniform cooling circuit can be formed inside the mold. When the cooling water flows in the pipe, it can efficiently absorb the heat generated by the mold during the molding process, accelerate the cooling of the mold, greatly shorten the production cycle, and improve production efficiency. Moreover, the continuous injection of cooling water can ensure the stability of the cooling effect, avoid the mold from deforming, cracking and other quality problems caused by local overheating, extend the service life of the mold, and the precise cooling control helps to improve the molding accuracy and surface quality of the product, reduce the scrap rate, and bring significant economic benefits to the enterprise. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2This is a schematic diagram of the spring and buffer pad structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the protrusion and the second groove structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the water-cooled inlet and inlet pipe structure of this utility model.

[0019] In the diagram: 1. Upper mold; 2. Lower mold; 3. Buffer assembly; 301. First groove; 302. Spring; 303. Buffer pad; 304. Protrusion; 305. Second groove; 4. Water cooling assembly; 401. Water cooling inlet; 402. Water inlet pipe; 403. Mold water inlet; 404. First water cooling pipe; 405. First water outlet pipe; 406. Second water cooling pipe; 407. Second water outlet pipe; 408. Third water cooling pipe; 409. Third water outlet pipe. Detailed Implementation

[0020] 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.

[0021] This utility model embodiment provides a rapid cooling mold, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the upper mold 1 is provided with a buffer assembly 3 at its bottom. A lower mold 2 is movably connected to the bottom of the upper mold 1, and a buffer assembly 3 is provided at the top of the lower mold 2. Both the upper mold 1 and the lower mold 2 are provided with water-cooling assemblies 4. The buffer assembly 3 includes a first groove 301, which is located inside the lower mold 2. A spring 302 is fixedly connected to the bottom of the first groove 301. A buffer pad 303 is fixedly connected to one end of the spring 302. A protrusion 304 is engaged with the top of the buffer pad 303. A second groove 305 is provided inside the protrusion 304. By moving the upper mold 1 downward, the upper mold 1 causes the protrusion 304 to move downward, causing the second groove 305 inside the protrusion 304 to engage with the buffer pad 303 downward, causing the buffer pad 303 to press downward, triggering the spring to extend and retract to buffer the pressure, thereby completing the closure of the upper mold 1 and the lower mold 2.

[0022] Furthermore, such as Figure 2As shown, the lower mold 2 forms an elastic structure with the spring 302 and the buffer pad 303. One end of the spring 302 extends into the bottom of the first groove 301 in the lower mold 2 for fixation, and the other end of the spring 302 is fixed to the bottom of the buffer pad 303. With the spring 302, the spring 302 can support the buffer pad 303 with the support of the lower mold 2, which facilitates the expansion and contraction of the buffer pad 303.

[0023] Furthermore, such as Figure 2 and Figure 3 As shown, the buffer pad 303 forms a locking structure with the upper mold 1 through the protrusion 304, and the shape and size of the buffer pad 303 match the shape and size of the first groove 301. The outer wall of the buffer pad 303 is fitted to the inner wall of the first groove 301. Through the protrusion 304, the protrusion 304 can lock the buffer pad 303 with the support of the upper mold 1, thereby improving the buffering of the mold closure.

[0024] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the water-cooling assembly 4 includes a water-cooling inlet 401, which is installed at one end of an inlet pipe 402. One end of the inlet pipe 402 is fixedly connected to a first water-cooling pipe 404 via a mold inlet 403. One end of the first water-cooling pipe 404 is fixedly connected to a first outlet pipe 405. A second water-cooling pipe 406 is fixedly connected to the outer wall of the first water-cooling pipe 404. One end of the second water-cooling pipe 406 is fixedly connected to a second outlet pipe 407. A third water-cooling pipe 407 is fixedly connected to the outer wall of the second water-cooling pipe 406. 8. One end of the third water cooling pipe 408 is fixedly connected to the third water outlet pipe 409. Cooling water enters the water inlet pipe 402 through the water cooling inlet 401, so that the cooling water enters the first water cooling pipe 404, the second water cooling pipe 406 and the third water cooling pipe 408, so that the cooling water flows in the pipe and absorbs the heat generated by the mold during the molding process. Then it is discharged through the first water outlet pipe 405, the second water outlet pipe 407 and the third water outlet pipe 409. By continuously injecting cooling water, the mold is cooled.

[0025] Furthermore, such as Figure 4 As shown, the inlet pipe 402 forms a fixed structure with the first water cooling pipe 404 and the first outlet pipe 405. One end of the inlet pipe 402 is fixed to one end of the first water cooling pipe 404, and the other end of the first water cooling pipe 404 is fixed to the first outlet pipe 405. By setting the first water cooling pipe 404, the first water cooling pipe 404 can be fixed to the first outlet pipe 405 with the support of the inlet pipe 402, which strengthens the effect of fixing the first outlet pipe 405.

[0026] Furthermore, such as Figure 4 As shown, the first water-cooling pipe 404 forms a fixed structure with the second water-cooling pipe 406 and the second water outlet pipe 407. One end of the second water-cooling pipe 406 is fixed to the outer wall of the first water-cooling pipe 404, and the other end of the second water-cooling pipe 406 is fixed to one end of the second water outlet pipe 407. By setting the second water-cooling pipe 406, the second water outlet pipe 407 can be fixed by the support of the first water-cooling pipe 404, which strengthens the effect of fixing the second water outlet pipe 407.

[0027] Furthermore, such as Figure 4 As shown, the second water-cooling pipe 406 forms a fixed structure with the third water-cooling pipe 408 and the third water outlet pipe 409. One end of the third water-cooling pipe 408 is fixed to one end of the second water-cooling pipe 406, and the other end of the third water-cooling pipe 408 is fixed to one end of the third water outlet pipe 409. By setting the third water-cooling pipe 408, the third water-cooling pipe 408 can be fixed to the third water outlet pipe 409 with the support of the second water-cooling pipe 406, which strengthens the effect of fixing the third water outlet pipe 409.

[0028] Working principle: During use, by moving the upper mold 1 downward, the upper mold 1 drives the protrusion 304 to move downward, causing the second groove 305 inside the protrusion 304 to engage with the buffer pad 303 downward, causing the buffer pad 303 to press downward, triggering the spring to extend and retract to buffer the pressure, thereby completing the closure of the upper mold 1 and the lower mold 2. After closure, injection molding is performed. After injection molding, if rapid cooling of the mold is required, cooling water is introduced into the water inlet pipe 402 through the water cooling inlet 401, allowing the cooling water to enter the first water cooling pipe 404, the second water cooling pipe 406, and the third water cooling pipe 408, allowing the cooling water to flow in the pipes and absorb the heat generated by the mold during the molding process. Then, it is discharged through the first water outlet pipe 405, the second water outlet pipe 407, and the third water outlet pipe 409. By continuously injecting cooling water, the mold is cooled.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rapid cooling mold, comprising an upper mold (1), characterized in that: The bottom of the upper mold (1) is provided with a buffer assembly (3), the bottom of the upper mold (1) is movably connected to the lower mold (2), the top of the lower mold (2) is provided with a buffer assembly (3), the interior of the upper mold (1) and the lower mold (2) are both provided with a water cooling assembly (4), the buffer assembly (3) includes a first groove (301), and the first groove (301) is opened inside the lower mold (2), the bottom of the first groove (301) is fixedly connected with a spring (302), one end of the spring (302) is fixedly connected with a buffer pad (303), the top of the buffer pad (303) is engaged with a protrusion (304), and the interior of the protrusion (304) is provided with a second groove (305).

2. The rapid cooling mold according to claim 1, characterized in that: The lower mold (2) forms an elastic structure with a spring (302) and a buffer pad (303). One end of the spring (302) extends into the bottom of the first groove (301) in the lower mold (2) for fixation, and the other end of the spring (302) is fixed to the bottom of the buffer pad (303).

3. The rapid cooling mold according to claim 1, characterized in that: The buffer pad (303) forms a locking structure with the upper mold (1) through the protrusion (304), and the shape and size of the buffer pad (303) match the shape and size of the first groove (301), and the outer wall of the buffer pad (303) is fitted to the inner wall of the first groove (301).

4. A rapid cooling mold according to claim 1, characterized in that: The water-cooling assembly (4) includes a water-cooling inlet (401), which is installed at one end of an inlet pipe (402). One end of the inlet pipe (402) is fixedly connected to a first water-cooling pipe (404) via a mold inlet (403). One end of the first water-cooling pipe (404) is fixedly connected to a first outlet pipe (405). A second water-cooling pipe (406) is fixedly connected to the outer wall of the first water-cooling pipe (404). One end of the second water-cooling pipe (406) is fixedly connected to a second outlet pipe (407). A third water-cooling pipe (408) is fixedly connected to the outer wall of the second water-cooling pipe (406). One end of the third water-cooling pipe (408) is fixedly connected to a third outlet pipe (409).

5. A rapid cooling mold according to claim 4, characterized in that: The water inlet pipe (402) forms a fixed structure with the first water cooling pipe (404) and the first water outlet pipe (405), and one end of the water inlet pipe (402) is fixed with one end of the first water cooling pipe (404), and the other end of the first water cooling pipe (404) is fixed with the first water outlet pipe (405).

6. A rapid cooling mold according to claim 4, characterized in that: The first water-cooling pipe (404) forms a fixed structure with the second water-cooling pipe (406) and the second water outlet pipe (407), and one end of the second water-cooling pipe (406) is fixed to the outer wall of the first water-cooling pipe (404), and the other end of the second water-cooling pipe (406) is fixed to one end of the second water outlet pipe (407).

7. A rapid cooling mold according to claim 4, characterized in that: The second water-cooling pipe (406) forms a fixed structure with the third water-cooling pipe (408) and the third water outlet pipe (409), and one end of the third water-cooling pipe (408) is fixed with one end of the second water-cooling pipe (406), and the other end of the third water-cooling pipe (408) is fixed with one end of the third water outlet pipe (409).

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