Rapid cooling plastic suction mold

Abstract

The utility model discloses a quick cooling plastic suction mold, belongs to the technical field of molds, and aims to solve the technical problem of low cooling efficiency of a plastic suction mold in the prior art. The rapid cooling plastic suction mold comprises a mold base, wherein a mold body is embedded in the top of the mold base; the heat exchange tube is laid on the inner bottom wall of the die holder, and the heat exchange tube is spirally coiled from the middle of the die holder to the side of the die holder; the liquid inlet pipe and the liquid outlet pipe are arranged on the side wall of the die holder in a penetrating mode, the liquid inlet pipe is communicated with the end, located in the middle of the die holder, of the heat exchange pipe, the liquid outlet pipe is communicated with the end, located on the side of the die holder, of the heat exchange pipe, and the bottom wall of the die body is attached to the heat exchange pipe. According to the rapid cooling plastic uptake mold, the mode that one-way low-temperature airflow conducts heat exchange and cooling on the peripheral side of the mold body is matched with the mode that the heat exchange pipes convey cooling media to conduct heat exchange and cooling on the mold body from inside to outside, efficient cooling of the mold body can be achieved, and it is ensured that the mold body can be normally used for plastic uptake machining.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and in particular relates to a fast cooling plastic suction mold. Background Art

[0002] Blistering is a plastic processing technology that uses thermoplastic plastic sheets to manufacture open plastic shell products through specific process steps. During the blistering process, the plastic sheets are cut into a certain size and heated to soften. Then, air is extracted using a vacuum pump. With the help of the pressure difference and mechanical pressure on both sides of the sheet, it is deformed and applied to a specific mold contour surface. After cooling, shaping, trimming and trimming, the blister product is manufactured.

[0003] During the blister processing, the mold is in contact with high-temperature substances for a long time, and its temperature will rise rapidly. If the mold is in a high-temperature state for a long time, it will have an adverse effect on the mold material and structure, causing the mold to lose its use value. Therefore, the mold needs to be cooled during the blister processing. However, the existing blister mold cooling method is single and the cooling efficiency is low, resulting in an extension of the blister molding cycle and an increase in the molding time, affecting production efficiency. For this reason, the present application proposes a fast cooling blister mold. Utility Model Content

[0004] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a fast cooling blister mold, aiming to solve the technical problem of low cooling efficiency of the blister mold in the prior art.

[0005] Technical Solution

[0006] In order to solve the above technical problems, the utility model provides a rapid cooling blister mold, including a mold base, a mold body embedded in the top of the mold base; a heat exchange tube laid on the inner bottom wall of the mold base, the heat exchange tube is spirally coiled from the middle of the mold base toward the side of the mold base; a liquid inlet pipe and a liquid discharge pipe are passed through the side wall of the mold base, the liquid inlet pipe is connected to one end of the heat exchange tube located in the middle of the mold base, and the liquid discharge pipe is connected to one end of the heat exchange tube located on the side of the mold base.

[0007] Preferably, the bottom wall of the mold body is in contact with the heat exchange tube.

[0008] Preferably, the cross-section of the heat exchange tube is a flat structure.

[0009] Preferably, the ratio of width to height of the heat exchange tube is 4:1.

[0010] Preferably, air guide grooves are provided on the four inner walls of the mold base, and an air guide mechanism is provided on one side wall of the mold base, and the air guide mechanism is used to circulate and connect the air guide grooves with the outside air.

[0011] Preferably, the air guide mechanism includes an air inlet box cover and an exhaust box cover fixed on the side wall of the mold base, and the side wall of the mold base is provided with a connecting groove for connecting the air guide groove with the air inlet box cover and the exhaust box cover, and an air separator is arranged between the air inlet box cover and the exhaust box cover.

[0012] Preferably, an exhaust fan is installed in the exhaust box cover, and a cooling pipe is installed in the air intake box cover, the cooling pipes are distributed in an S shape, and a protective mesh plate is provided at one end of the air intake box cover and the exhaust box cover away from the mold base.

[0013] Preferably, the air distributor comprises a partition plate fixed between the air inlet box cover and the exhaust box cover and a shielding plate fixed on a side of the partition plate away from the mold base, and the shielding plate is vertically distributed to the partition plate.

[0014] Beneficial Effects

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model uses a heat exchange tube laid at the bottom of the mold base, and liquid cooling medium is input into the heat exchange tube through the liquid inlet tube and discharged by the liquid discharge tube. The heat exchange between the heat exchange tube and the mold base can be used to cool the mold body. The heat exchange tube is spirally coiled from the middle of the mold base toward the side of the mold base, so the liquid cooling medium can gradually exchange heat and cool from the middle of the mold body toward the surroundings in the heat exchange tube, which is beneficial to the diffusion of heat. The cross-section of the heat exchange tube is flat and fits the bottom of the mold body, which improves the heat exchange efficiency between the liquid cooling medium and the mold body and has a higher cooling effect.

[0017] In the utility model, the exhaust fan in the exhaust box cover is started through the air guide grooves opened on the surrounding walls inside the mold base and the air guide mechanism arranged on the side walls of the mold base, and the air between the air guide grooves and the mold body is extracted, forcing the outside air to enter the air guide grooves from the air intake box cover, and the cooling pipe circulates the cooling medium. The air can be cooled by the cooling pipe when passing through the air intake box cover, thereby forming a unidirectional low-temperature airflow between the air guide grooves and the outside world, which is used for heat exchange and cooling of the surrounding side of the mold body. The method of heat exchange and cooling of the surrounding side of the mold body by the unidirectional low-temperature airflow is combined with the method of heat exchange and cooling of the mold body by the heat exchange pipe conveying the cooling medium from the inside to the outside to heat exchange and cool the mold body, so as to achieve efficient cooling of the mold body and ensure that the mold body can be normally used for vacuum forming processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a top view of the middle mold base of the utility model;

[0021] Figure 3 It is a cross-sectional view of the heat exchange tube in the utility model;

[0022] Figure 4 It is a cross-sectional view of the middle mold base of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the gas guide mechanism in the utility model.

[0024] The markings in the attached drawings are: 1. mold base; 2. mold body; 3. liquid inlet pipe; 4. liquid discharge pipe; 5. air guide mechanism; 6. heat exchange pipe; 7. air guide groove; 8. air inlet box cover; 9. exhaust box cover; 10. air distributor; 11. partition plate; 12. shielding plate; 13. exhaust fan; 14. cooling pipe; 15. protective mesh plate; 16. connecting groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] This embodiment provides a rapid cooling blister mold, and its structural schematic diagram is as follows Figure 1-Figure 5 As shown, it includes a mold base 1, on the top of which a mold body 2 is embedded; a heat exchange tube 6 is laid on the inner bottom wall of the mold base 1, and the heat exchange tube 6 is spirally coiled from the middle of the mold base 1 toward the side of the mold base 1; an inlet pipe 3 and a discharge pipe 4 are passed through the side wall of the mold base 1, the inlet pipe 3 is connected to one end of the heat exchange tube 6 located in the middle of the mold base 1, and the discharge pipe 4 is connected to one end of the heat exchange tube 6 located at the side of the mold base 1, and the liquid cooling medium is input into the heat exchange tube 6 through the inlet pipe 3 and discharged from the discharge pipe 4. The heat exchange between the heat exchange tube 6 and the mold base 1 can be used to cool the mold body 2, wherein, since the heat exchange tube 6 is spirally coiled from the middle of the mold base 1 toward the side of the mold base 1, the liquid cooling medium can gradually exchange heat and cool from the middle of the mold body 2 to the surroundings in the heat exchange tube 6, which is conducive to the diffusion of heat and avoids the accumulation of heat at the bottom of the mold body 2, and has a good cooling effect.

[0027] Furthermore, in the present embodiment, the bottom wall of the mold body 2 is fitted with the heat exchange tube 6, and the cross-section of the heat exchange tube 6 is a flat structure, which is beneficial to the heat exchange between the cooling medium transported in the heat exchange tube 6 and the mold body 2. The width to height ratio of the heat exchange tube 6 is 4:1. This proportional structure enables the heat exchange tube 6 to smoothly transport the cooling medium and has a higher heat exchange effect.

[0028] As a preferred technical solution in this embodiment, air guide grooves 7 are provided on the four walls inside the mold base 1, and an air guide mechanism 5 is provided on one side wall of the mold base 1. The air guide mechanism 5 is used to circulate and conduct the air guide grooves 7 with the outside air. Specifically, the air guide mechanism 5 includes an air inlet box cover 8 and an exhaust box cover 9 fixed on the side wall of the mold base 1. A connecting groove 16 for connecting the air guide groove 7 with the air inlet box cover 8 and the exhaust box cover 9 is provided on the side wall of the mold base 1. An exhaust fan 13 is installed in the exhaust box cover 9, and a cooling pipe 14 is installed in the air inlet box cover 8. The cooling The cooling pipes 14 are distributed in an S shape, and a protective mesh plate 15 is provided at one end of the air inlet box cover 8 and the exhaust box cover 9 away from the mold base 1. By starting the exhaust fan 13 in the exhaust box cover 9, the air between the air guide groove 7 and the mold body 2 is extracted, forcing the outside air to enter the air guide groove 7 from the air inlet box cover 8, and the cooling pipe 14 circulates the cooling medium. The air can be cooled by the cooling pipe 14 when passing through the air inlet box cover 8, thereby forming a one-way low-temperature airflow between the air guide groove 7 and the outside world, which is used to exchange heat and cool the surrounding side of the mold body 2.

[0029] Furthermore, in the present embodiment, an air separator 10 is provided between the air intake box cover 8 and the exhaust box cover 9. The air separator 10 includes a partition plate 11 fixed between the air intake box cover 8 and the exhaust box cover 9 and a shielding plate 12 fixed on a side of the partition plate 11 away from the mold base 1. The shielding plate 12 is vertically distributed to the partition plate 11, and is used to separate the airflow discharged from the exhaust box cover 9 from the airflow entering the air intake box cover 8, so as to prevent the hot airflow discharged from the exhaust box cover 9 from affecting the airflow entering the air intake box cover 8 and causing increased energy consumption.

[0030] Working principle: When in use, the liquid cooling medium is input into the heat exchange tube 6 through the liquid inlet pipe 3, and then discharged from the liquid discharge pipe 4. The heat exchange between the heat exchange tube 6 and the mold base 1 is used to cool the mold body 2. Among them, since the heat exchange tube 6 is spirally coiled from the middle of the mold base 1 toward the side of the mold base 1, the liquid cooling medium can gradually exchange heat and cool from the middle of the mold body 2 to the surrounding area in the heat exchange tube 6, which is beneficial to the diffusion of heat. The cross-section of the heat exchange tube 6 is flat and fits the bottom of the mold body 2, which improves the heat exchange efficiency between the liquid cooling medium and the mold body 2 and has a higher cooling effect. Furthermore, by starting the exhaust fan 13 in the exhaust box cover 9, the air between the air guide groove 7 and the mold body 2 is extracted, forcing the outside air to enter the air guide groove 7 from the air intake box cover 8, and the cooling pipe 14 circulates the cooling medium. The air can be cooled by the cooling pipe 14 when passing through the air intake box cover 8, thereby forming a one-way low-temperature airflow between the air guide groove 7 and the outside, which is used to perform heat exchange and cooling on the surrounding side of the mold body 2. The one-way low-temperature airflow is used to perform heat exchange and cooling on the surrounding side of the mold body 2, and the heat exchange pipe 6 is used to transport the cooling medium to cool the mold body 2 from the inside to the outside. This can achieve efficient cooling of the mold body 2 and ensure that the mold body 2 can be used normally for vacuum forming processing.

[0031] All technical features in this embodiment can be freely combined according to actual needs.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rapid cooling blister mold, characterized in that: include: A mold base (1), wherein a mold body (2) is embedded on the top of the mold base (1); A heat exchange tube (6) is laid on the inner bottom wall of the mold base (1), wherein the heat exchange tube (6) is arranged in a spiral shape from the middle of the mold base (1) toward the side of the mold base (1); A liquid inlet pipe (3) and a liquid discharge pipe (4) are provided on the side wall of the mold base (1), wherein the liquid inlet pipe (3) is connected to one end of the heat exchange pipe (6) located in the middle of the mold base (1), and the liquid discharge pipe (4) is connected to one end of the heat exchange pipe (6) located on the side of the mold base (1); Air guide grooves (7) are provided on the four inner walls of the mold base (1), and an air guide mechanism (5) is provided on one side wall of the mold base (1), the air guide mechanism (5) being used to circulate and connect the air guide grooves (7) with external air; The air guide mechanism (5) comprises an air intake box cover (8) and an exhaust box cover (9) fixed on the side wall of the mold base (1); a connecting groove (16) for connecting the air guide groove (7) with the air intake box cover (8) and the exhaust box cover (9) is provided on the side wall of the mold base (1); and an air distributor (10) is provided between the air intake box cover (8) and the exhaust box cover (9).

2. A rapid cooling blister mold according to claim 1, characterized in that: The bottom wall of the mold body (2) is in contact with the heat exchange tube (6).

3. A rapid cooling blister mold according to claim 1, characterized in that: The cross section of the heat exchange tube (6) is a flat structure.

4. A rapid cooling blister mold according to claim 3, characterized in that: The ratio of width to height of the heat exchange tube (6) is 4:

1.

5. A rapid cooling blister mold according to claim 1, characterized in that: An exhaust fan (13) is installed in the exhaust box cover (9), a cooling pipe (14) is installed in the air intake box cover (8), and the cooling pipe (14) is distributed in an S shape. The ends of the air intake box cover (8) and the exhaust box cover (9) away from the mold base (1) are both provided with a protective mesh plate (15).

6. A rapid cooling blister mold according to claim 1, characterized in that: The air distributor (10) comprises a partition plate (11) fixed between the air inlet box cover (8) and the air exhaust box cover (9), and a shielding plate (12) fixed on a side of the partition plate (11) away from the mold base (1), wherein the shielding plate (12) is arranged perpendicular to the partition plate (11).

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