Injection mold with cooling structure

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold with a cooling structure, which comprises an injection mold main body, a cavity is arranged at the center of the top surface of the injection mold main body, cavity grooves are symmetrically arranged on the inner wall of the cavity close to the edges of two sides, and the cooling structure is arranged in the cavity. A cavity top plate is clamped between the inner walls of the two cavity grooves, and discharging assemblies are arranged between the two ends of the two cavity bottom plates. In the mold opening process of the mold, the extrusion force on the discharging assembly is removed, at the moment, the discharging assembly expands under the action of water pressure in the discharging assembly to integrally push the discharging assembly and the cavity top plate outwards, and auxiliary discharging is conducted on cooled injection molding products in the injection mold body. The device can assist in product blanking under the hydraulic action of the cooling liquid flowing among the input flow channel, the output flow channel and the water bag main body while the cooling effect of the cooling liquid flowing in the input flow channel and the output flow channel on the product in the cavity is not hindered, so that the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, specifically a kind of injection mold with cooling structure. BACKGROUND

[0002] Injection mold is a kind of special tool for producing plastic products, by injection molding process, plastic raw materials are injected into mold, after cooling solidification, the product of required shape is obtained, in the injection molding process, mold is injected into molten plastic, then the required plastic product is formed by cooling solidification, injection mold is widely used in automobile, household appliance, medical treatment, toy and other industries, and high-precision, high-quality and complex plastic products can be manufactured.

[0003] At present, in prior art, after the molten liquid plastic fills the mold cavity in the production process of injection mold, it is cooled and shaped, and after the product in the cavity is cooled and shaped, the product is ejected by the cooperation of the material-ejecting structure and the mold opening action, and under normal circumstances, the flowing cooling liquid in the cooling liquid flow channel opened in the mold core cools the plastic in the cavity, and the flowing cooling liquid cannot assist the product unloading during mold opening.

[0004] Therefore, aiming at the above problems, an injection mold with cooling structure is provided. INVENTION CONTENTS

[0005] In order to make up for the deficiencies of prior art, solve the problem that after the product in the cavity is cooled and shaped, the product is ejected by the cooperation of the material-ejecting structure and the mold opening action, and under normal circumstances, the flowing cooling liquid in the cooling liquid flow channel opened in the mold core cools the plastic in the cavity, and the flowing cooling liquid cannot assist the product unloading during mold opening, an injection mold with cooling structure is provided.

[0006] The utility model discloses a kind of injection molds with cooling structure, including injection mold main body, the top surface center of the injection mold main body is equipped with cavity, the inner wall of the cavity is symmetrically equipped with cavity recess near two side edges, two The inner wall between the cavity top plate of two cavity recesses is clamped, and the two ends between two cavity top plates are provided with unloading assembly, the input flow channel is communicated and established between the two side walls of the injection mold main body, the input flow channel is located at the lower center of cavity, and the other two side walls of the injection mold main body are communicated and established with multiple output flow channels, and the input flow channel is vertically communicated with multiple output flow channels.

[0007] Preferably, the top surface of the injection mold main body is symmetrically equipped with top plate clamping groove, and the top plate clamping groove is communicated with cavity clamping groove.

[0008] Preferably, the discharging assembly comprises a linkage top plate, the side wall of the linkage top plate is vertically fixed to one end of two cavity top plates, and the cavity top plates are slidingly installed in the top plate clamping groove.

[0009] Preferably, limit clamping grooves are formed below the inner walls of the two ends of the top plate clamping groove, and the two end protrusions of the linkage top plate are slidingly installed between the inner walls of the limit clamping grooves.

[0010] Preferably, a water bag cavity is formed in the bottom wall of the top plate clamping groove, and the water bag cavity is connected with the output flow channel.

[0011] Preferably, a water bag main body is clamped in the water bag cavity, and the top surface of the water bag main body is in contact with the bottom surface of the linkage top plate.

[0012] Preferably, a pressure relief hole is formed in the top surface of the injection mold main body, and the pressure relief hole is connected with the limit clamping groove.

[0013] Preferably, input joints are symmetrically installed on the two side walls of the injection mold main body, the joints are connected with the two ends of the input flow channel, and a plurality of output joints are symmetrically installed on the other two side walls of the injection mold, and the plurality of output joints are respectively connected with the two ends of the plurality of output flow channels.

[0014] The utility model discloses a beneficial effect:

[0015] 1、 the utility model discloses a water bag main body that is clamped in the water bag cavity supports the cavity top plate whole, and the water bag main body is connected with the water flow in the input flow channel and the output flow channel, and the rubber material of itself can deform to a certain extent under the water pressure, and the extrusion force of discharging assembly in the mold opening process is cancelled, at this time, the discharging assembly expands under the water pressure in it and pushes out the cavity top plate whole, and the injection product in the injection mold main body is cooled down and is assisted to unload, and the device can assist product unloading under the hydraulic pressure of the cooling liquid flowing between the input flow channel, the output flow channel and the water bag main body, and the practicability of the device is increased.

[0016] 2、 the utility model discloses that the establishment of the cavity of linkage top plate protrusion and limit clamping groove does not produce pressure difference, prevents the sliding process of linkage top plate and limit clamping groove and top plate clamping groove in the pressure difference inside and outside the cavity. DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the utility model and constitute a part of the application, and the illustrative embodiment of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation to the utility model.

[0018] Figure 1is a perspective view of the utility model;

[0019] Figure 2 is a perspective view of the injection mold main body in the utility model;

[0020] Figure 3 is a sectional view of the injection mold main body in the utility model;

[0021] Figure 4 is a perspective view of the injection mold main body in the utility model;

[0022] Figure 5 is a perspective view of the cavity top plate and the unloading assembly in the utility model;

[0023] Legend:

[0024] 1, injection mold main body;11, cavity;111, cavity recess;2, cavity top plate;3, unloading assembly;12, input runner;121, output runner;13, top plate clamping groove;31, linkage top plate;131, limit clamping groove;14, water bag cavity;32, water bag main body;132, pressure relief hole;4, input connector;5, output connector. Specific embodiments

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] The specific embodiments are given below.

[0027] Please refer to Figure 1 - Figure 5The utility model provides a kind of injection mold with cooling structure, including injection mold main body 1, the top surface center of injection mold main body 1 is equipped with cavity 11, the inner wall of cavity 11 is symmetrically equipped with cavity recess 111 near both side edges, two cavity top plates 2 are clamped between the inner wall of two cavity recesses 111, two cavity top plates are both provided with unloading assembly 3 between both ends, input runner 12 is through being equipped with between the side wall of injection mold main body 1, input runner 12 is located below the center of cavity 11, multiple output runners 121 are through being equipped with between the other two side walls of injection mold main body 1, multiple output runners 121 are vertically communicated with input runner 12, injection mold main body 1 is extruded to unloading assembly 3 after clamping, at this time, cavity top plate 2 is completely hidden in cavity recess 111, then melt plastic is passed into cavity 11, and cavity 11 is completely filled, at this time, cooling liquid circulated between input runner 12 and output runner 121 can be cooled to unloading assembly 3, and after cooling, unloading operation is carried out, and the extrusion force of unloading assembly 3 is cancelled during the unloading process, and the components of unloading assembly 3 can be moved outward as a whole under the hydraulic pressure provided by the cooling liquid circulated between input runner 12 and output runner 121, cooperate cavity top plate 2 to extrude the product in cavity 11 from cavity 11, realize the unloading of product.

[0028] As Figure 2 , Figure 3 , Figure 4 And Figure 5 Indicated, the top surface of injection mold main body 1 is symmetrically equipped with top plate clamping groove 13, and top plate clamping groove 13 is communicated with cavity clamping groove, and unloading assembly 3 includes linkage top plate 31, and the side wall of linkage top plate 31 is vertically fixedly connected with one end of two cavity top plates 2, and cavity top plate 2 is slidably installed in top plate clamping groove 13, and the lower portion of the inner wall of both ends of top plate clamping groove 13 is equipped with limiting clamping groove 131, and the both ends of linkage top plate 31 are slidably installed in the inner wall between limiting clamping groove 131, and injection mold main body 1 is installed to unloading assembly 3 by the cooperation between top plate clamping groove 13 and linkage top plate 31, and the relative distance length between the both ends of linkage top plate 31 and the top surface of limiting clamping groove 131 during clamping process can prevent linkage top plate 31 and top plate clamping groove 13 from being separated, and the length of linkage top plate 31 is pushed out from cavity 11.

[0029] As Figure 2 , Figure 3 , Figure 4 And Figure 5As shown, the bottom wall of the top plate clamping groove 13 is provided with a water bag cavity 14, the water bag cavity 14 is communicated with the output flow channel 121, the water bag cavity 14 is internally clamped with a water bag main body 32, the top surface of the water bag main body 32 is in contact with the bottom surface of the linkage top plate 31, the water bag main body 32 is installed through the opening of the water bag cavity 14, the water bag main body 32 is communicated with the output flow channel 121 after docking, and the input flow channel 12 and the output flow channel 121 can be counted into the water bag main body 32, and a certain water pressure is provided for it, and after the extrusion force of the discharging assembly 3 is cancelled, the water bag main body 32 can be pushed out through the deformation of the water bag main body 32 under the action of the water pressure.

[0030] As shown in Figure 2 and Figure 4 The top surface of the injection mold main body 1 is provided with a pressure relief hole 132, the pressure relief hole 132 is communicated with the limiting clamping groove 131, the opening of the pressure relief hole 132 makes the cavity composed of the linkage top plate 31 protrusion and the limiting clamping groove 131 not produce pressure difference, which prevents the pressure difference inside and outside the cavity from hindering the sliding process of the linkage top plate 31 and the limiting clamping groove 131 and the top plate clamping groove 13.

[0031] As shown in Figure 2 and Figure 3 The two side walls of the injection mold main body 1 are symmetrically provided with input connectors 4, the connectors are communicated with both ends of the input flow channel 12, and the other two side walls of the injection mold are symmetrically provided with a plurality of output connectors 5, the plurality of output connectors 5 are respectively communicated with both ends of a plurality of output flow channels 121, the input end of the cooling liquid is connected with the two input connectors 4, and after being transferred by the input flow channel 12, the cooling liquid is discharged by the output flow channel 121 and communicated with the cooling liquid return end outside through the output connector 5

[0032] Working principle: the input end of the cooling liquid is connected with two input joints 4, is transferred through the input flow channel 12 and is discharged by the output flow channel 121, and is connected with the cooling liquid return end outside through the output joint 5, the injection mold body 1 is closed, the extrusion force is generated to the ejection assembly 3, at this time, the cavity top plate 2 is completely hidden in the cavity groove 111, then the molten plastic is introduced into the cavity 11, and the cavity 11 is completely filled, at this time, the cooling liquid circulating between the input flow channel 12 and the output flow channel 121 can cool the ejection assembly 3, after cooling, the mold opening action is performed, and the mold opening process cancels the extrusion force on the ejection assembly 3, the components of the ejection assembly 3 can be moved out as a whole under the hydraulic pressure provided by the cooling liquid circulating between the input flow channel 12 and the output flow channel 121, and the products in the cavity 11 are extruded out of the cavity 11 by cooperating with the cavity top plate 2, so that the ejection auxiliary of the products is realized, the injection mold body 1 is installed on the ejection assembly 3 through the cooperation between the top plate clamping groove 13 and the linkage top plate 31, the linkage top plate 31 is prevented from being separated from the top plate clamping groove 13 through the mutual clamping between the linkage top plate 31 and the limiting clamping groove 131, and the relative distance length between the linkage top plate 31 and the limiting clamping groove 131 during the mold closing process is the length of the ejection assembly 3 pushing the products out of the cavity 11, the water bag body 32 is installed through the opening of the water bag cavity 14, the water bag body 32 is connected with the output flow channel 121, and the input flow channel 12, the output flow channel 121 can enter the water bag body 32 and provide a certain water pressure, after the extrusion force on the ejection assembly 3 is cancelled, the ejection assembly 3 and the cavity top plate 2 are pushed out as a whole through the deformation of the water bag body 32 under the water pressure, the relief hole 132 is arranged, so that the cavity formed by the linkage top plate 31 and the limiting clamping groove 131 does not have a pressure difference, and the sliding process of the linkage top plate 31, the limiting clamping groove 131 and the top plate clamping groove 13 is prevented from being hindered by the pressure difference between the inside and outside of the cavity.

[0033] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. An injection mold having a cooling structure, characterized by: The utility model provides an injection mold body (1), the top surface center of injection mold body (1) is equipped with cavity (11), the inner wall of cavity (11) is equipped with cavity recess (111) near both side edges symmetrically, the inner wall between two cavity recess (111) is equipped with cavity top plate (2) clamping, two cavity top plate both ends are equipped with unloading assembly (3) between, the both sides wall of injection mold body (1) is equipped with input runner (12) through, input runner (12) is located the below center of cavity (11), the both sides wall of injection mold body (1) is equipped with multiple output runner (121) through, multiple output runner (121) and input runner (12) vertical intercommunication.

2. The injection mold with cooling structure according to claim 1, characterized in that: The top surface of the injection mold body (1) is symmetrically provided with a top plate clamping groove (13), and the top plate clamping groove (13) is in communication with the cavity clamping groove.

3. The injection mold with cooling structure according to claim 2, wherein: The unloading assembly (3) comprises a linkage top plate (31), and the linkage top plate (31) is vertically fixedly connected with one end of the two cavity top plates (2). The cavity top plate (2) is slidingly installed in the top plate clamping groove (13).

4. The injection mold with cooling structure according to claim 3, wherein: The inner wall of the both ends of the top plate clamping groove (13) is provided with a limiting clamping groove (131) below, and the both ends of the linkage top plate (31) are slidingly installed in the inner wall of the limiting clamping groove (131).

5. The injection mold with cooling structure according to claim 4, wherein: The bottom wall of the top plate clamping groove (13) is provided with a water bag cavity (14), and the water bag cavity (14) is in communication with the output runner (121).

6. The injection mold with cooling structure according to claim 5, wherein: The water bag cavity (14) is internally provided with a water bag body (32), and the top surface of the water bag body (32) is in contact with the bottom surface of the linkage top plate (31).

7. The injection mold with cooling structure according to claim 1, wherein: The top surface of the injection mold body (1) is provided with a pressure relief hole (132), and the pressure relief hole (132) is in communication with the limiting clamping groove (131).

8. The injection mold with cooling structure according to claim 7, characterized in that: The both sides wall of the injection mold body (1) is symmetrically provided with an input connector (4), and the connector is in communication with the both ends of the input runner (12). The other two side walls of the injection mold are symmetrically provided with a plurality of output connectors (5), and the plurality of output connectors (5) are respectively in communication with the both ends of the plurality of output runners (121).

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