A deep cavity injection mold cavity core cooling mechanism

Abstract

The utility model provides a kind of deep cavity injection mold cavity core cooling mechanism, comprising: mould body, cooling assembly one and cooling assembly two, the inside of mould body is equipped with cooling assembly one for cooling, the left side surface and the right side surface of mould body are equipped with one cooling assembly two for cooling respectively, cooling assembly one includes the mounting plate for installing cooling pipe, cooling pipe is installed in the inside of mould body and is in serpentine structure, cooling assembly one includes the fixing plate for installing cooling piece, compared with prior art, the utility model has the beneficial effects as follows: by setting cooling assembly one, when using, the cooling pipe of serpentine structure prolongs the flow path of cooling medium in mould, the contact area of cooling medium in serpentine pipe flow with mould body increases, contact time is extended, can more fully absorb the heat of mould, to more effectively reduce mould temperature, improve cooling efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of cooling equipment, and specifically relates to a cooling mechanism for the cavity core of a deep cavity injection mold. Background Technology

[0002] Deep cavity injection molds are used in injection molding processes, primarily for manufacturing plastic products with deep cavity structures. During deep cavity injection molding, heat is difficult to dissipate quickly, and most molding processes rely on natural cooling after injection. This means heat dissipation depends on the environment and the mold's own heat conduction, resulting in low heat dissipation efficiency and prolonged high temperatures. This significantly extends the cooling and curing cycle of plastic products, reducing production efficiency. Furthermore, uneven natural cooling can cause significant internal stress in the product, leading to defects such as deformation and warping, affecting dimensional accuracy and appearance quality. Conventional approaches to improve this situation include extending the settling time to allow sufficient natural cooling for both the mold and the product, or using mold materials with better heat dissipation to accelerate heat dissipation. However, extending the settling time significantly increases the production cycle, reduces output per unit time, and increases production costs. Replacing the mold material with better heat dissipation not only significantly increases mold manufacturing and maintenance costs, but also, relying solely on the material's own heat dissipation is insufficient in the context of concentrated heat in deep cavity injection, failing to fundamentally solve the low cooling efficiency problem. Therefore, a new structure is needed to address these technical issues. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a cavity core cooling mechanism for deep cavity injection molds, so as to solve the problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution: a cooling mechanism for the cavity core of a deep cavity injection mold, comprising: a mold body, a first cooling component, and a second cooling component. The first cooling component is installed inside the mold body, and a second cooling component is installed on the left and right surfaces of the mold body, respectively. The first cooling component includes a mounting plate for mounting cooling pipes. The cooling pipes are installed in a serpentine structure inside the mold body. The second cooling component includes a fixing plate for mounting cooling components. Cooling components are installed on the front surface of the fixing plate, and brass pipes for conducting heat are installed on the rear surface of the fixing plate.

[0005] In a preferred embodiment, two mold grooves are symmetrically opened on the upper surface of the mold body, a connecting plate is installed on the rear surface of the mold body, an mounting plate is installed on the side of the connecting plate away from the mold body, and multiple strip-shaped through holes are evenly opened on the left and right surfaces of the mold body.

[0006] In a preferred embodiment, the inner end of the strip-shaped through hole is located inside the mold groove, and a cooling pipe is installed through the upper right corner of the rear surface of the mold body. The cooling pipe is located inside the mold body and extends out from the upper left corner of the rear surface of the connecting plate. In use, the serpentine structure of the cooling pipe extends the flow path of the cooling medium in the mold. When the cooling medium flows in the serpentine pipe, the contact area with the mold body increases and the contact time is extended, which can more fully absorb the heat of the mold, thereby more effectively reducing the mold temperature and improving the cooling efficiency.

[0007] In a preferred embodiment, the cooling pipe is uniformly traversed through the mounting plate in a serpentine structure. The serpentine cooling pipe is positioned below the two mold slots through the mold body. The cooling pipe extends out from the left edge of the rear surface of the mounting plate, with the front end of the cooling pipe at the upper right corner being the water inlet and the front end of the cooling pipe at the left edge being the water outlet.

[0008] In a preferred embodiment, the cooling pipe is made of brass, and the inlet and outlet ends of the cooling pipe are connected to an external cooling device. A fixing plate is installed on the left and right surfaces of the mold body, and the fixing plate is made of brass.

[0009] In a preferred embodiment, the number and position of the brass tubes on the rear surface of the fixing plate match the number and position of the strip-shaped through holes. The brass tubes are solid tubes and are installed inside the strip-shaped through holes. The inner end of the brass tube is sealed to the surface of the mold groove, and the inner end surface of the brass tube is flush with the surface of the mold groove. In use, the air-cooled heat dissipation structure formed by the second cooling component can serve as an auxiliary method for cooling the cooling tubes, providing additional cooling effect. Combined with the first cooling component, it can achieve a good cooling effect, thereby improving cooling efficiency and shortening the molding cycle.

[0010] In a preferred embodiment, a plurality of cooling fans are mounted on the side of the fixing plate away from the brass tube, and a filter plate is mounted on the side of the cooling fans away from the fixing plate. A plurality of filter screens are evenly mounted on the surface of the filter plate, and the position and number of the filter screens match the number and position of the cooling fans.

[0011] After adopting the above technical solution, the beneficial effects of this utility model are as follows: 1. By setting a cooling component one, a cooling component one for cooling is installed inside the mold body. The cooling component one includes a cooling pipe. The cooling pipe is installed inside the mold body in a serpentine structure. When in use, the serpentine structure of the cooling pipe extends the flow path of the cooling medium in the mold. When the cooling medium flows in the serpentine pipe, the contact area with the mold body increases and the contact time is extended, which can more fully absorb the heat of the mold, thereby more effectively reducing the mold temperature and improving the cooling efficiency.

[0012] 2. By setting up cooling component two, a cooling component two is installed on the left and right surfaces of the mold body respectively. Cooling component two is an air-cooled heat dissipation structure. In use, the air-cooled heat dissipation structure formed by cooling component two can serve as an auxiliary method for cooling pipe cooling, providing additional cooling effect. During the cooling process after injection molding, the outer surface of the mold body will dissipate a large amount of heat. The air-cooled heat dissipation structure accelerates the dissipation of heat from the surface of the mold body by forcing airflow, which helps to reduce the overall temperature of the mold body. Combined with cooling component one, it can play a good cooling role, thereby improving cooling efficiency and shortening the molding cycle. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of a cavity core cooling mechanism for a deep cavity injection mold according to the present invention.

[0015] Figure 2 This is a schematic diagram of a cooling component of a deep cavity injection mold core cooling mechanism according to the present invention.

[0016] Figure 3 This is a schematic diagram of the second cooling component of a deep cavity injection mold cavity core cooling mechanism according to the present invention.

[0017] In the diagram, 100 is the mold body, 101 is the strip-shaped through hole, 110 is the mold groove, and 120 is the connecting plate.

[0018] 200 - Mounting plate, 210 - Water inlet, 220 - Water outlet, 230 - Cooling pipe;

[0019] 300-Fixing plate, 310-Brass tube, 320-Cooling fan, 330-Filter plate, 331-Filter screen. 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] Please see Figures 1 to 3 As the first embodiment of this utility model: a cooling mechanism for the cavity core of a deep cavity injection mold, comprising: a mold body 100, a cooling component one and a cooling component two, wherein the mold body 100 is equipped with a cooling component one for cooling, and a cooling component two for cooling is respectively installed on the left and right surfaces of the mold body 100. The cooling component one includes a mounting plate 200 for mounting a cooling pipe 230, and the mold body 100 is equipped with a cooling pipe 230 in a serpentine structure inside. The cooling component one includes a fixing plate 300 for mounting a cooling component, wherein a cooling component is installed on the front surface of the fixing plate 300, and a brass pipe 310 for conducting heat is installed on the rear surface of the fixing plate 300.

[0022] Two mold grooves 110 are symmetrically opened on the upper surface of the mold body 100. A connecting plate 120 is installed on the rear surface of the mold body 100. An mounting plate 200 is installed on the side surface of the connecting plate 120 away from the mold body 100. Multiple strip-shaped through holes 101 are evenly opened on the left and right surfaces of the mold body 100.

[0023] The inner end of the strip-shaped through hole 101 is set inside the mold groove 110. A cooling pipe 230 is installed through the upper right corner of the rear surface of the mold body 100. The cooling pipe 230 is set inside the mold body 100 and extends out from the upper left corner of the rear surface of the connecting plate 120.

[0024] The cooling pipe 230 is uniformly inserted through the mounting plate 200 in a serpentine structure. The serpentine cooling pipe 230 is set below the two mold slots 110 through the mold body 100. The cooling pipe 230 extends out from the left edge of the rear surface of the mounting plate 200. The front end of the cooling pipe 230 in the upper right corner is the water inlet 210, and the front end of the cooling pipe 230 on the left edge is the water outlet 220.

[0025] The cooling pipe 230 is made of brass. The inlet end 210 and outlet end 220 of the cooling pipe 230 are connected to external cooling equipment. A fixing plate 300 is installed on the left and right surfaces of the mold body 100 respectively. The fixing plate 300 is made of brass.

[0026] When the mold device needs cooling after injection molding (the working process and principle of the mold device are existing technology and will not be elaborated here), the user can activate the external cooling equipment (the cooling equipment is a water-cooled cooling device, and its specific working principle and structure will not be elaborated here). When the external equipment is activated, coolant will enter the water inlet 210 of the cooling pipe 230. The coolant will then flow through the entire cooling pipe 230. As the coolant flows through the pipe, because the temperature of the coolant is lower than the temperature of the cooling pipe 230, the mold inside the mold groove 110 will transfer heat to the mold body 100, which in turn will transfer heat to the cooling pipe 230, thus absorbing the heat from the cooling pipe 230. The flow rate decreases, causing the coolant temperature to rise. After the coolant temperature rises as it flows through the pipe, it is discharged through the outlet 220 and cooled by external cooling equipment. Then, it re-enters the cooling pipe 230 through the inlet 210, achieving a cyclical cooling effect on the mold groove 110 inside the mold body 100 and itself. This, in turn, cools the injection mold inside the mold groove 110. During use, the serpentine structure of the cooling pipe 230 extends the flow path of the cooling medium in the mold. When the cooling medium flows in the serpentine pipe, the contact area with the mold body 100 increases and the contact time is extended, allowing for more complete absorption of heat from the mold, thereby more effectively reducing the mold temperature and improving cooling efficiency.

[0027] Please see Figures 1 to 3 As a second embodiment of this utility model: based on the description in the above embodiments, further, the number and position of the brass tubes 310 on the rear surface of the fixing plate 300 match the number and position of the strip-shaped through holes 101. The brass tubes 310 are solid tubes. The brass tubes 310 are installed inside the strip-shaped through holes 101. The inner end of the brass tubes 310 is sealed to the surface of the mold groove 110, and the inner end surface of the brass tubes 310 is flush with the surface of the mold groove 110.

[0028] Multiple cooling fans are installed on the side of the fixed plate 300 away from the brass tube 310. A filter plate 330 is installed on the side of the cooling fan away from the fixed plate 300. Multiple filter screens 331 are evenly installed on the surface of the filter plate 330. The position and number of filter screens 331 match the number and position of the cooling fans.

[0029] In use, when the injection mold inside the mold groove 110 is cooled using the cooling assembly according to the operation steps of the first embodiment, the user can activate the cooling fan on the outer surface of the mold body 100. Since a brass tube 310 is installed on the rear surface of the fixing plate 300, and the inner end of the brass tube 310 is located inside the mold groove 110, when the injection mold is cooling down during molding, heat is transferred to a portion of the fixing plate 300 through the brass tube 310. At this time, the cooling fan on the side of the fixing plate 300 away from the brass tube 310 operates, dissipating and blowing away the heat from the surface of the fixing plate 300. Thermal grease is provided at the contact end with the fixed plate 300 to facilitate better operation of the cooling fan, thereby achieving a heat dissipation effect. During use, the air-cooled heat dissipation structure formed by the second cooling component can serve as an auxiliary method for cooling the cooling pipe 230, providing additional cooling effect. During the cooling process after injection molding, the outer surface of the mold body 100 will dissipate a large amount of heat. The air-cooled heat dissipation structure accelerates the dissipation of heat from the surface of the mold body 100 by forcing airflow, which helps to reduce the overall temperature of the mold body 100. Combined with the first cooling component, it can play a good cooling role, thereby improving cooling efficiency and shortening the molding cycle.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 cavity core cooling mechanism for a deep cavity injection mold, comprising: The mold body (100), cooling component one, and cooling component two are characterized in that the mold body (100) is equipped with cooling component one for cooling inside, and cooling component two for cooling is respectively installed on the left and right surfaces of the mold body (100). Cooling component one includes a mounting plate (200) for mounting cooling pipe (230). Cooling pipe (230) is installed in a serpentine structure inside the mold body (100). Cooling component two includes a fixing plate (300) for mounting cooling components. Cooling components are installed on the front surface of the fixing plate (300), and brass pipe (310) for conducting heat is installed on the rear surface of the fixing plate (300).

2. The cavity core cooling mechanism for a deep cavity injection mold as described in claim 1, characterized in that: The upper surface of the mold body (100) has two symmetrical mold grooves (110). A connecting plate (120) is installed on the rear surface of the mold body (100). An mounting plate (200) is installed on the side of the connecting plate (120) away from the mold body (100). Multiple strip-shaped through holes (101) are evenly opened on the left and right surfaces of the mold body (100).

3. The cavity core cooling mechanism for a deep cavity injection mold as described in claim 2, characterized in that: The inner end of the strip-shaped through hole (101) is located inside the mold groove (110). A cooling pipe (230) is installed through the upper right corner of the rear surface of the mold body (100). The cooling pipe (230) is located inside the mold body (100) and extends out from the upper left corner of the rear surface of the connecting plate (120).

4. The cavity core cooling mechanism for a deep cavity injection mold as described in claim 3, characterized in that: The cooling pipe (230) is uniformly serpentine through the mounting plate (200). The serpentine cooling pipe (230) is set below the two mold slots (110) through the mold body (100). The cooling pipe (230) extends out from the left edge of the rear surface of the mounting plate (200). The front end of the cooling pipe (230) at the upper right corner is the water inlet (210), and the front end of the cooling pipe (230) at the left edge is the water outlet (220).

5. The cavity core cooling mechanism for a deep cavity injection mold as described in claim 4, characterized in that: The cooling pipe (230) is made of brass. The inlet (210) and outlet (220) of the cooling pipe (230) are connected to external cooling equipment. A fixing plate (300) is installed on the left and right surfaces of the mold body (100). The fixing plate (300) is made of brass.

6. The cavity core cooling mechanism for a deep cavity injection mold as described in claim 1, characterized in that: The number and position of the brass tubes (310) on the rear surface of the fixing plate (300) match the number and position of the strip through holes (101). The brass tubes (310) are solid tubes. The brass tubes (310) are installed inside the strip through holes (101). The inner end of the brass tubes (310) is sealed to the surface of the mold groove (110), and the inner end surface of the brass tubes (310) is flush with the surface of the mold groove (110).

7. The cavity core cooling mechanism for a deep cavity injection mold as described in claim 6, characterized in that: Multiple cooling fans (320) are installed on the side of the fixed plate (300) away from the brass tube (310). A filter plate (330) is installed on the side of the cooling fan (320) away from the fixed plate (300). Multiple filter screens (331) are evenly installed on the surface of the filter plate (330). The position and number of the filter screens (331) match the number and position of the cooling fans (320).

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