Rapid cooling mechanism for mold

Abstract

The utility model provides a quick cooling mechanism of a mould, which comprises a mould and at least one cooling device connected with the mould, the mould comprises an upper mould, a lower mould and a mould core arranged on the lower mould, the upper mould is provided with a forming groove matched with the mould core, and a cavity used for plastic moulding is formed between the forming groove and the mould core; the upper die is provided with at least six first heat dissipation channels penetrating through the two sides of the upper die. The mold core is provided with at least three second heat dissipation channels penetrating through the two sides of the mold core, the two sides of the lower mold are each provided with a plurality of connecting channels connected with the second heat dissipation channels, and the connecting channels or / and the first heat dissipation channels are connected with the cooling device. The mold core is provided with a plurality of vertical flow channel grooves, and the flow channel grooves are communicated with the second heat dissipation channel; a heat dissipation baffle plate is arranged in the flow channel groove; and a runner groove communicated with the second cooling channel and a heat dissipation baffle are arranged in the mold core, so that the contact area between cooling water and the interior of the mold core is ensured, and the heat dissipation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a rapid cooling mechanism of a mold. Background Art

[0002] During the production process of injection molds, molten plastic is injected into the molding cavity of the mold, and then cooled to form a plastic product. However, the high temperature of the plastic during the injection molding process will cause the mold to generate high temperature. If it is not effectively cooled, the temperature of the mold will continue to rise, affecting the life of the mold and the molding efficiency and quality of the product. Traditional cooling methods mainly rely on the cooling channels set inside the mold to remove heat through the circulation of cooling water. However, with the increase in the complexity and production speed of plastic products, traditional cooling methods can no longer meet the needs of efficient production in terms of cooling efficiency and effect.

[0003] The existing cooling system has some design deficiencies, such as unreasonable distribution of cooling channels, poor cooling water flow, uneven cooling effect, etc. These problems will not only lead to local overheating of the mold, but also cause defects such as poor product molding and unstable dimensions, thereby reducing production efficiency and product quality. Some molds are also equipped with more complex cooling channels to ensure cooling effects, but the processing difficulty of such molds in parts such as mold cores and templates is greatly increased. Therefore, how to improve the cooling efficiency of injection molds, dissipate heat evenly, and extend the life of the mold is a problem that needs to be solved urgently. Utility Model Content

[0004] In view of this, the utility model provides a rapid cooling mechanism for a mold.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A rapid cooling mechanism for a mold comprises a mold and at least one cooling device connected to the mold, wherein the mold comprises an upper mold, a lower mold, and a mold core arranged on the lower mold, the upper mold is provided with a molding groove matching the mold core, and a cavity for plastic molding is formed between the molding groove and the mold core; the upper mold is provided with at least 6 first heat dissipation channels running through both sides thereof; the mold core is provided with at least 3 second heat dissipation channels running through both sides thereof, and both sides of the lower mold are respectively provided with a plurality of connecting channels connected to the second heat dissipation channels, and the connecting channels are connected to the cooling device with the first heat dissipation channels; the mold core is provided with a plurality of vertical flow channel grooves, and the flow channel grooves are interconnected with the second heat dissipation channels; and a heat dissipation baffle is provided in the flow channel grooves.

[0007] In a preferred technical solution, the at least six first heat dissipation channels are evenly distributed on the upper mold near the molding groove.

[0008] In the preferred technical solution, the lower mold is provided with a mounting groove matching the mold core, and the mold core is embedded in the mounting groove to be fixed on the lower mold; the connecting channel runs through the outer side of the lower mold and the mounting groove, and every two of the multiple connecting channels are symmetrically arranged on both sides of the mounting groove and connected to the same second heat dissipation channel.

[0009] In a preferred technical solution, the second heat dissipation channel is horizontally arranged in the lower mold, the flow channel groove is vertically arranged in the lower mold, and the second heat dissipation channel passes through at least one flow channel groove horizontally to form mutual communication.

[0010] In a preferred technical solution, the top of the heat dissipation baffle is embedded in the flow channel groove, and the bottom of the heat dissipation baffle can be tightly connected to the flow channel groove.

[0011] In a preferred technical solution, the heights of the plurality of flow channel grooves match the shape of the mold core, and the height of the heat dissipation baffle matches the height of the flow channel grooves.

[0012] In the preferred technical solution, joints are respectively provided on the outer side of the first heat dissipation channel and the outer side of the connecting channel, and hoses are connected between the joints to connect the first heat dissipation channel and the first heat dissipation channel connecting channel, and the cooling device is connected to the first heat dissipation channel and / or the connecting channel through the hose and the joint.

[0013] In the preferred technical solution, the cooling device at least includes a cooling pump, a controller, a cooling tower, and a water tank.

[0014] In a preferred technical solution, the heat dissipation baffle is made of copper or aluminum.

[0015] It can be seen from the above technical solutions that, compared with the prior art, the present invention has the following beneficial technical effects:

[0016] The upper mold is provided with multiple first heat dissipation channels close to the molding groove. The circulating cooling water of the cooling device can better cool the upper mold. The lower mold is provided with a connecting channel connected to the second heat dissipation channel of the mold core. The cooling water circulation seems to be able to dissipate heat for the lower mold and the mold core at the same time. The mold core is provided with a flow channel groove connected to the second cooling channel and a heat dissipation baffle to ensure the contact area between the cooling water and the inside of the mold core and improve the heat dissipation effect. The heat dissipation baffle can guide the flow of cooling water to further improve the heat dissipation effect of the mold core during cooling water circulation. The flow channel groove can be designed to correspond to the shape of the mold core, which is easy to process and is beneficial to the cooling channel processing of the mold core. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model 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 in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the exploded sectional structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the utility model.

[0021] Figure 4 It is a schematic diagram of the exploded structure of the utility model.

[0022] Figure 5 It is a perspective structural diagram of the lower mold and the mold core.

[0023] Figure numbers: 100, upper mold; 200, lower mold; 300, mold core; 400, cooling device; 110, molding groove; 120, first heat dissipation channel; 310, second heat dissipation channel; 210, connecting channel; 320, flow channel groove; 330, heat dissipation baffle; 340, installation groove; 101, joint. DETAILED DESCRIPTION

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0025] In the description of the present application, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, "plurality" means two or more.

[0026] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0027] A rapid cooling mechanism for a mold, see Figure 1-5 , including a mold and a cooling device 400 connected to the mold, the cooling device 400 is a cooling device that uses water cooling to dissipate heat, the mold is an injection mold, because when the injection mold is working, the high-temperature plastic is injected into the mold and then molded, which will cause the mold to generate high temperature. If the mold is not cooled, it will affect the mold life and the molding efficiency of the product. Therefore, the injection mold is generally cooled and dissipated by the cooling device 400 to improve production efficiency; the mold includes an upper mold 100, a lower mold 200 and a core 300 arranged on the lower mold 200, the upper mold 100 is provided with a molding groove 110 matching the core 300, a cavity for plastic molding is formed between the molding groove 110 and the core 300, the structure of the molding groove 110 and the upper surface of the core 300 corresponds to the structure of the product to be produced, and generally, the upper mold 10 0 is provided with an injection port connected to the molding groove 110, and the molten plastic is injected into the cavity between the molding groove 110 and the mold core 300, and the plastic is molded after cooling to produce a plastic product; the upper mold 100 is provided with 7 first heat dissipation channels 120 running through the left and right sides thereof, the mold core 300 is provided with 3 second heat dissipation channels 310 running through the two sides thereof, and the two sides of the lower mold 200 are respectively provided with 3 connecting channels 210 connected to the second heat dissipation channels 310, one of the connecting channels 210 and one side of the first heat dissipation channel 120 is connected to a cooling device 400, and in other embodiments, two cooling devices 400 may be provided, one connected to the connecting channel 210, and the other connected to the first heat dissipation channel 120, so that the two cooling devices 400 can cool and dissipate heat for the upper mold 100 or the mold core 300 separately.

[0028] Furthermore, joints 101 are respectively provided on the outer side of the first heat dissipation channel 120 and the outer side of the connecting channel 210, and a hose is connected between the joint 101 and the joint to connect the first heat dissipation channel 120 and the first heat dissipation channel 120 / connecting channel 210. Each first heat dissipation channel 120 and the connecting channel 120 can be connected through a hose in a variety of connection methods, so the hose is not shown in the figure. After each first heat dissipation channel 120 and the connecting channel 210 are connected through the joint 101 and the hose, each first heat dissipation channel 120, the connecting channel 210, and the second heat dissipation channel 310 are interconnected; the cooling device 400 includes a cooling pump, a controller, a cooling tower, and a water tank, and the components are not shown in the figure. The water tank is used to store cooling water, and the cooling pump is used to provide circulation power for cooling water. , cooling water is transported from a water tank or a cooling tower to the cooling channel inside the mold, and a controller is used to control and adjust the temperature of the cooling water; the cooling tower is used to cool the high-temperature cooling water brought back from the mold to a temperature suitable for recycling again. The two ends of the cooling device 400 are respectively connected to one side of one of the first heat dissipation channels 120 and the outer end of one of the connecting channels 210. After the cooling water is injected into the first heat dissipation channel 120 connected to the cooling device 400, it flows through each second heat dissipation channel 120, then flows through each connecting channel 210 and the second heat dissipation channel 310, and finally flows back from the connecting channel 210 connected to the cooling device 400 to form a cycle; in other embodiments, the cooling device 400 may also be provided with a filter, a heat exchanger, a flow and pressure monitoring device, etc.

[0029] Furthermore, the mold core 300 is provided with a plurality of vertical flow channel grooves 320, and the flow channel grooves 320 are interconnected with the second heat dissipation channel 310 to ensure that the cooling water circulating in the second heat dissipation channel 310 can circulate smoothly after passing through the flow channel grooves 320. A heat dissipation baffle 330 is provided in the flow channel grooves 320, and the flow channel grooves 320 can increase the cooling water that can be contained in the mold core 300, thereby improving the heat dissipation efficiency of the cooling water to the mold core 300; the heat dissipation baffle 330 is made of copper, but its material is not limited to the present embodiment. The heat dissipation baffle 300 made of copper has good thermal conductivity, and the heat on the mold core 300 can be quickly transferred. When the circulating cooling water flows to the flow channel groove 320 and contacts the heat dissipation baffle 300, it can take away the heat more quickly, thereby improving the cooling efficiency. The heat dissipation baffle 300 blocks the cooling water from directly passing through the second heat dissipation channel 310, so that the flowing cooling water enters the flow channel groove 320 and then bypasses the heat dissipation baffle 330 to reach the second heat dissipation channel 310 connected on the other side and flows out, thereby ensuring that the cooling water can be better injected into the flow channel groove 320. The structure of the flow channel groove 320 and the heat dissipation baffle 330 increases the area of ​​the cooling water contacting the heat source, thereby better cooling the mold core 300 and improving the molding effect and efficiency of the product.

[0030] Furthermore, seven first heat dissipation channels 120 are evenly distributed on the upper mold 100 near the molding groove 110. As shown in the figure, the surface of the mold core 300 is a structure with a high center and low sides. Since the molten plastic is injected into the inner side of the molding groove 110 for molding, the position near the molding groove 110 generates a large amount of heat. Each first heat dissipation channel 120 is surrounded by the outer side of the molding groove 110 to better dissipate heat. The lower mold 200 is provided with a mounting groove 340 matching the mold core 300. The mold core 300 is embedded in the mounting groove 340 to The mold core 300 is fixed on the lower mold 200, and the fixed mold core 300 forms an integrated structure with the lower mold 200. The connecting channel 340 passes through the outer side of the lower mold 200 and the mounting groove 340. Every two connecting channels 210 are symmetrically arranged on both sides of the mounting groove 340 and connected to the same second heat dissipation channel 310. The two symmetrical connecting channels 340 on the lower mold 200 are connected to the same second heat dissipation channel 310 to ensure that the cooling water flows in from the connecting channel 340 on one side, flows through the second heat dissipation channel 310, and then flows out from the connecting channel 340 on the other side.

[0031] Furthermore, the second heat dissipation channel 310 is horizontally arranged in the lower mold 200, the flow channel groove 320 is perpendicular to the lower mold 200, and the second heat dissipation channel 310 passes through the two flow channel grooves 320 horizontally to form mutual communication. As shown in the figure, there are two flow channel grooves 320 connected to the same second heat dissipation channel 310. In other embodiments, the number of flow channel grooves 320 can be changed according to the shape and size of the core 300; the top of the heat dissipation baffle 330 is embedded in the flow channel groove 320, and the bottom of the heat dissipation baffle 330 is sealed and connected to the flow channel groove 320 to ensure that the cooling water does not flow out of the flow channel groove 320 when flowing; the height of the flow channel groove 320 matches the shape of the core 300, and the flow channel groove 320 is formed by slotting from the bottom of the core 300. Compared with the existing It is necessary to set up a complex cooling water channel on the core 300 to facilitate processing; the runner groove 320 extends from the bottom of the core 300 to a position close to the upper surface of the core 300. Since the core 300 in this embodiment is a structure that is high in the middle and low on both sides, the two central runner grooves 320 are higher, while the four runner grooves 320 on both sides are lower. The plastic in the molten state is formed on the upper surface of the core 300, so the heat is greater at the upper position of the core. Therefore, cooling water flows into the upwardly extending runner groove 320 to better dissipate heat for the core 300. The height of the heat dissipation baffle 330 matches the height of the runner groove 320 to ensure that the heat dissipation baffle 330 can extend to a position close to the top of the runner groove 320 to increase the contact area with the cooling water.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rapid cooling mechanism for a mold, comprising a mold and at least one cooling device (400) connected to the mold, characterized in that: The mold comprises an upper mold (100), a lower mold (200), and a mold core (300) arranged on the lower mold (200); the upper mold (100) is provided with a molding groove (110) matching the mold core (300); a cavity for plastic molding is formed between the molding groove (110) and the mold core (300); the upper mold (100) is provided with at least 6 first heat dissipation channels (120) passing through both sides thereof; the mold core (300) is provided with at least 3 second heat dissipation channels (120) passing through both sides thereof; Channel (310), a plurality of connecting channels (210) connected to the second heat dissipation channel (310) are respectively arranged on both sides of the lower mold (200), and the connecting channels (210) or / and the first heat dissipation channel (120) are connected to the cooling device (400); the mold core (300) is provided with a plurality of vertical flow channel grooves (320), and the flow channel grooves (320) are interconnected with the second heat dissipation channel (310); and a heat dissipation baffle (330) is arranged in the flow channel groove (320).

2. A rapid cooling mechanism for a mold according to claim 1, characterized in that: The at least six first heat dissipation channels (120) are evenly distributed on the upper mold (100) at positions close to the molding groove (110).

3. The rapid cooling mechanism for a mold according to claim 1, characterized in that: The lower mold (200) is provided with a mounting groove (340) matching the mold core (300), and the mold core (300) is embedded in the mounting groove (340) to be fixed on the lower mold (200); the connecting channel (210) passes through the outer side of the lower mold (200) and the mounting groove (340), and every two of the multiple connecting channels (210) are symmetrically arranged on both sides of the mounting groove (340) and connected to the same second heat dissipation channel (310).

4. The rapid cooling mechanism for a mold according to claim 1, characterized in that: The second heat dissipation channel (310) is horizontally arranged in the lower mold (200), the flow channel groove (320) is vertically arranged in the lower mold (200), and the second heat dissipation channel (310) passes through at least one flow channel groove (320) horizontally to form mutual communication.

5. The rapid cooling mechanism for a mold according to claim 1, characterized in that: The top of the heat dissipation baffle (330) is embedded in the flow channel groove (320), and the bottom of the heat dissipation baffle (330) can be hermetically connected to the flow channel groove (320).

6. The rapid cooling mechanism for a mold according to claim 1, characterized in that: The heights of the plurality of flow channel grooves (320) match the shape of the mold core (300), and the height of the heat dissipation baffle (330) matches the height of the flow channel grooves (320).

7. The rapid cooling mechanism for a mold according to claim 1, characterized in that: Joints (101) are respectively provided on the outside of the first heat dissipation channel (120) and the outside of the connecting channel (210); a hose is connected between the joints (101) and the joints (101) so as to connect the first heat dissipation channel (120) and the first heat dissipation channel (120) / the connecting channel (210); the cooling device (400) is connected to the first heat dissipation channel (120) and / or the connecting channel (210) via the hose and the joint (101).

8. The rapid cooling mechanism for a mold according to claim 1, characterized in that: The cooling device (400) comprises at least a cooling pump, a controller, a cooling tower, and a water tank.

9. The rapid cooling mechanism for a mold according to claim 1, characterized in that: The heat dissipation baffle (330) is made of copper or aluminum.

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