CN220008681U - Plastic injection mold convenient to take off material - Google Patents

Abstract

The utility model relates to the technical field of plastic injection molds, in particular to a plastic injection mold that is easy to remove materials. It includes a mold body, the mold body includes a lower template, and a lower mold is installed on the top of the lower template. There is a cooling cavity, a mold cavity is provided at the top of the cooling cavity, a push plate is provided at the bottom end of the mold cavity, and an ejection structure is installed at the bottom of the push plate and inside the lower mold to facilitate quick demoulding. A cooling assembly is provided inside the lower mold. Guide rods are fixedly installed at the four corners of the top of the lower mold plate. A top plate is provided on the top of the guide rod. An upper mold plate is connected to the bottom of the top plate through a hydraulic rod. The upper mold plate An upper mold is connected to the bottom, and a buffer spring is provided at the bottom of the outer side of the guide rod. By setting the ejection structure, the plastic injection mold can quickly and independently complete the stripping work, thus ensuring the efficiency and production efficiency to a certain extent. Convenience.

Description

A plastic injection mold that is easy to remove materials

Technical field

The utility model relates to the technical field of plastic injection molds, specifically a plastic injection mold that is convenient for material removal.

Background technique

Injection molding is a tool for producing plastic products; it is also a tool that gives plastic products complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to melting heated plastic from The injection molding machine injects high pressure into the mold cavity, and after cooling and solidification, the molded product is obtained.

According to the authorization announcement number CN 217803119 U, a plastic injection mold that is convenient for material removal is disclosed, which includes an upper mold and a lower mold. A top plate is installed above the upper mold, and guide rods are symmetrically arranged around the upper and lower molds. A mold cavity is provided in the middle of the mold. A push plate is provided at the bottom of the mold cavity. A push plate is installed below the push plate. A cooling cavity is provided outside the mold cavity. The push plate is realized by the spiral protrusion on the cam and the pulley. The upward ejection action, and the limit plate at the end of the spiral protrusion can effectively prevent the pulley from derailing. The cooling chamber, water pump, condenser and collection box realize the recycling of cooling water in the cooling chamber, which facilitates product removal in the mold cavity.

The above-mentioned plastic injection mold that is convenient for stripping still has the following shortcomings: after plastic injection molding, it is necessary to control the starting motor. The forward and reverse rotation of the motor can control the up and down movement of the push plate, which facilitates the push plate. Ejection and reset, so after each molding process, it is necessary to control the motor operation to achieve demolding, which affects the efficiency and convenience of production to a certain extent.

Utility model content

The purpose of this utility model is to provide a plastic injection mold that is easy to remove materials, so as to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

A plastic injection mold that is easy to remove materials, including a mold body, the mold body includes a lower template, a lower mold is installed on the top of the lower template, a cooling cavity is installed on the top of the lower mold, and a mold is provided on the top of the cooling cavity cavity, a push plate is provided at the bottom end of the mold cavity, and an ejection structure is installed at the bottom of the push plate and inside the lower mold to facilitate quick demoulding. A cooling component is provided inside the lower mold, and the lower template Guide rods are fixedly installed at the four corners of the top. A top plate is provided at the top of the guide rod. An upper template is installed at the bottom of the top plate through a hydraulic rod. An upper mold is installed at the bottom of the upper template, and the guide rod The outer bottom is provided with a buffer spring;

The ejection structure includes a telescopic rod installed at the bottom of the push plate, and a connecting spring is provided outside the telescopic rod.

As a preferred solution of the present invention, a mounting plate is installed inside the lower mold, the bottom of the telescopic rod is installed on the top of the mounting plate, and the connecting spring is disposed between the mounting plate and the push plate.

As a preferred solution of the present invention, a slot is provided at the bottom of the cooling cavity, and the telescopic rod passes through the slot and is connected and installed with the bottom of the push plate, and the push plate and the mold cavity cooperate with each other.

As a preferred solution of the present invention, through holes are provided at the four corners of the top of the upper template, and the guide rods are slidably arranged inside the through holes.

As a preferred solution of the present invention, the upper mold and the mold cavity cooperate with each other.

As a preferred solution of the present invention, the cooling assembly includes a condenser installed at the bottom end of the lower mold. Both ends of the condenser are connected and installed with return pipes. The return pipe is far away from one end of the condenser and located on both sides of the cooling chamber. A water pump and a water tank are respectively installed at the positions. The water pump and the cooling cavity are connected and installed through a water inlet pipe, and the water tank and the cooling cavity are connected and installed through a water outlet pipe.

Compared with the existing technology, the beneficial effects of this utility model are:

The utility model aims at the problems in the background technology. The utility model provides an ejection structure in the plastic injection mold, so that during the actual processing of the plastic injection mold, the bottom of the push plate is installed inside the mold cavity through the telescopic rod and the connecting spring. , so that after the hydraulic rod drives the upper template and the upper mold is pressed down into the mold cavity, the telescopic rod and the connecting spring will be compressed under the action of pressure, and the push plate will move to the bottom of the mold cavity, and the hydraulic rod will be controlled after molding Shrink, the upper template and the upper mold are lifted, and the elastic force of the connecting spring exerts an upward force on the push plate, so that the parts formed inside the mold cavity are pushed out under the action of the push plate, and the stripping is completed. The operation is simple and convenient, allowing the plastic injection mold to quickly and independently complete the stripping work, thus ensuring the efficiency and convenience of production to a certain extent.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the right and equal sides of the utility model;

Figure 2 is a front view of the internal structure of the utility model;

Figure 3 is an enlarged view of the partial structure of the present utility model.

In the picture: 1. Mold body; 101. Lower template; 102. Buffer spring; 103. Guide rod; 104. Top plate; 105. Upper template; 106. Through hole; 107. Hydraulic rod; 108. Upper mold; 109. Cooling cavity; 110, mold cavity; 111, mounting plate; 112, push plate; 113, lower mold; 2, cooling component; 201, condenser; 202, return pipe; 203, water pump; 204, water inlet pipe; 205, water tank; 206. Outlet pipe; 3. Ejection structure; 301. Telescopic rod; 302. Connection spring.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on this The embodiments in the utility model and all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the utility model.

In order to facilitate understanding of the present utility model, the utility model will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the utility model are given. However, the utility model can be implemented in many different forms and is not limited to The embodiments described herein are, rather, provided so that this disclosure will be thorough and complete.

Note that when an element is said to be "anchored" to another element, it can be directly on the other element or intervening elements may also be present. When an element is said to be "connected" to another element, it can be is directly connected to another element or may be simultaneously connected to an intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the technical field of the present invention. The terms used in the description of the present invention are only for the purpose of describing specific The embodiments are not intended to limit the invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Please refer to Figures 1-3. This utility model provides a technical solution:

A plastic injection mold that is easy to remove materials, including a mold body 1. The mold body 1 includes a lower template 101. A lower mold 113 is installed on the top of the lower template 101. A cooling cavity 109 is installed on the top of the lower mold 113. A mold is provided on the top of the cooling cavity 109. Cavity 110, a push plate 112 is provided at the bottom end of the mold cavity 110, and an ejection structure 3 is installed at the bottom of the push plate 112 and inside the lower mold 113 to facilitate quick demoulding, and a cooling assembly 2 is provided inside the lower mold 113. The lower template Guide rods 103 are fixedly installed at the four corners of the top of 101. A top plate 104 is provided on the top of the guide rod 103. An upper template 105 is connected and installed at the bottom of the top plate 104 through a hydraulic rod 107. An upper mold 108 is connected and installed at the bottom of the upper template 105. A buffer spring 102 is provided at the outer bottom of the rod 103 .

In this embodiment, please refer to Figures 1, 2 and 3. The ejection structure 3 includes a telescopic rod 301 installed at the bottom of the push plate 112, and a connecting spring 302 is provided outside the telescopic rod 301, and a connecting spring 302 is installed inside the lower mold 113. The mounting plate 111 is installed, and the bottom of the telescopic rod 301 is installed on the top of the mounting plate 111. The connecting spring 302 is set between the mounting plate 111 and the push plate 112. A slot is provided at the bottom of the cooling cavity 109, and the telescopic rod 301 passes through the slot. Connected and installed with the bottom of the push plate 112, the push plate 112 and the mold cavity 110 cooperate with each other. By setting the ejection structure 3, the plastic injection mold can quickly and independently complete the stripping work, thus ensuring production to a certain extent. Therefore, during the actual processing of the plastic injection mold, since the bottom of the push plate 112 is installed inside the mold cavity 110 through the telescopic rod 301 and the connecting spring 302, the hydraulic rod 107 drives the upper template 105 and the upper mold 108 After being pressed down into the mold cavity 110, the telescopic rod 301 and the connecting spring 302 will be compressed under the pressure, and the push plate 112 will move to the bottom end of the mold cavity 110, and after molding, the hydraulic rod 107 will be controlled to shrink, and the upper template 105 will And the upper mold 108 is lifted, and the elastic force of the connecting spring 302 can exert an upward force on the push plate 112, so that the parts formed inside the mold cavity 110 are pushed out under the action of the push plate 112, and the stripping is completed. , simple and convenient operation.

Among them, through holes 106 are provided at the four corners of the top of the upper template 105, and the guide rod 103 is slidably provided inside the through hole 106. Through the cooperation between the through hole 106 and the guide rod 103, the upper template 105 can be effectively slid up and down. The upper mold 108 and the mold cavity 110 cooperate with each other. The cooling assembly 2 includes a condenser 201 installed at the bottom end of the lower mold 113. Both ends of the condenser 201 are connected and installed with a return pipe 202. The return pipe A water pump 203 and a water tank 205 are respectively installed at the end of 202 away from the condenser 201 and located on both sides of the cooling cavity 109. The water pump 203 and the cooling cavity 109 are connected and installed through a water inlet pipe 204, and the water tank 205 and the cooling cavity 109 are connected through an outlet pipe. The water pipe 206 is connected and installed, and the water pump 203 and the condenser 201 are started to work. The water pump 203 extracts the water inside the water tank 205 and cools the water through the condenser 201. Then the cooled water enters the inside of the cooling cavity 109 through the water inlet pipe 204. , thereby accelerating the speed of plastic cooling and molding.

The workflow of the utility model: when using the plastic injection mold, first control the extension of the hydraulic rod 107 to move the upper template 105 and the upper mold 108 downward. Since the upper template 105 is slidably arranged with the guide rod 103 through the through hole 106, it is possible to The moving position of the upper template 105 is effectively guided and limited, and during this process, molten plastic is injected into the mold cavity 110 through the feed hole. At the same time, the water pump 203 and the condenser 201 are started to work, and the water pump 203 pumps water into the water tank. The water inside 205 is extracted, and the water is cooled by the condenser 201, and then the cooled water enters the inside of the cooling cavity 109 through the water inlet pipe 204, thereby accelerating the speed of plastic cooling and molding, and in this process, due to the push plate The bottom of 112 is installed inside the mold cavity 110 through the telescopic rod 301 and the connecting spring 302. Therefore, after the hydraulic rod 107 drives the upper template 105 and the upper mold 108 to press down into the mold cavity 110, the telescopic rod 301 and the connecting spring will be pressed under the action of the pressure. The spring 302 is compressed, and the push plate 112 moves to the bottom end of the mold cavity 110, and after molding, the hydraulic rod 107 is controlled to contract, and the upper template 105 and the upper mold 108 are lifted, and the push plate can be pushed under the elastic force of the connecting spring 302. 112 exerts an upward force, so that the parts formed inside the mold cavity 110 are pushed out under the action of the push plate 112, and then the material removal is completed, and the operation is simple and convenient.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention. , substitutions and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A plastic injection mold that facilitates material removal, including a mold body (1), characterized in that: the mold body (1) includes a lower template (101), and a lower mold (101) is installed on the top of the lower template (101). 113), a cooling cavity (109) is installed on the top of the lower mold (113), a mold cavity (110) is provided on the top of the cooling cavity (109), and a push plate (110) is provided at the bottom end of the mold cavity (110). 112), an ejection structure (3) is installed at the bottom of the push plate (112) and inside the lower mold (113) for easy and rapid demoulding, and a cooling component (2) is provided inside the lower mold (113). Guide rods (103) are fixedly installed at the four corners of the top of the lower template (101). A top plate (104) is provided on the top of the guide rod (103). A hydraulic rod (107) passes through the bottom of the top plate (104). An upper template (105) is connected and installed, an upper mold (108) is connected and installed at the bottom of the upper template (105), and a buffer spring (102) is provided at the bottom of the outer side of the guide rod (103); The ejection structure (3) includes a telescopic rod (301) installed at the bottom of the push plate (112), and a connecting spring (302) is provided outside the telescopic rod (301). 2. A plastic injection mold for easy stripping according to claim 1, characterized in that: a mounting plate (111) is installed inside the lower mold (113), and the bottom of the telescopic rod (301) is installed on On the top of the mounting plate (111), the connecting spring (302) is disposed between the mounting plate (111) and the push plate (112). 3. A plastic injection mold for easy stripping according to claim 1, characterized in that: a slot is provided at the bottom of the cooling cavity (109), and the telescopic rod (301) passes through the slot and the push rod. The bottom of the plate (112) is connected and installed, and the push plate (112) and the mold cavity (110) cooperate with each other. 4. A plastic injection mold for easy stripping according to claim 1, characterized in that: through holes (106) are provided at the four corners of the top of the upper template (105), and the guide rod (106) 103) Slide and set inside the through hole (106). 5. A plastic injection mold that facilitates material removal according to claim 1, characterized in that the upper mold (108) and the mold cavity (110) cooperate with each other. 6. A plastic injection mold for easy removal according to claim 1, characterized in that: the cooling component (2) includes a condenser (201) installed at the bottom end of the lower mold (113), and the condenser (201) is connected and installed with a return pipe (202) at both ends. The return pipe (202) is far away from the end of the condenser (201) and is located on both sides of the cooling chamber (109). A water pump (203) and a water tank are installed respectively. (205), the water pump (203) and the cooling cavity (109) are connected and installed through a water inlet pipe (204), and the water tank (205) and the cooling cavity (109) are connected and installed through a water outlet pipe (206).