CN219405234U

CN219405234U - High-precision injection molding press-fit die

Info

Publication number: CN219405234U
Application number: CN202320604401.2U
Authority: CN
Inventors: 李海荣; 章建华; 李智鹏
Original assignee: Guangdong Rongxu Intelligent Technology Co ltd
Current assignee: Guangdong Rongxu Intelligent Technology Co ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-07-25
Anticipated expiration: 2033-03-24

Abstract

The utility model relates to the technical field of injection molding devices, in particular to a high-precision injection molding pressing mold, which comprises a fixed mold part and a movable mold part matched with the fixed mold part, wherein the fixed mold part comprises a fixed mold seat, a feeding component is arranged in the fixed mold seat, the feeding component comprises a glue feeding seat, the glue feeding seat is provided with a main feeding runner, a first feeding runner and a second feeding runner, the first feeding runner is provided with a first needle valve nozzle, the second feeding runner is provided with a second needle valve nozzle, the first needle valve nozzle and the second needle valve nozzle face the movable mold part, and a control piece for controlling the first needle valve nozzle and the second needle valve nozzle is arranged on the fixed mold seat. Injection molding is performed through the needle valve nozzle, so that residual materials of the nozzle are effectively reduced, and meanwhile, after injection molding, the sprue trace on the outer surface of the product is smooth, so that the quality of the appearance of the product is effectively improved.

Description

High-precision injection molding press-fit die

Technical Field

The utility model relates to the technical field of injection molding devices, in particular to a high-precision injection molding press-fit die.

Background

In the injection molding process, it is generally necessary to fit a mold to form a blank into a part having a specific shape and size. The mould has a specific contour or cavity shape, and the blank can obtain a corresponding three-dimensional shape by applying different cavity shapes. The mold generally comprises a movable mold and a fixed mold, which are separable and combinable. And taking out the workpiece when the workpiece is separated, and injecting the blank into the die cavity for forming when the workpiece is closed.

In the production process of the embedded injection type product, a three-plate injection molding structure is generally used for production after the rubber coating piece is placed, so that raw materials can be left at a water gap in the mode, waste of the raw materials is caused, obvious marks can be left at the water gap in the mode, and the appearance quality of the product is influenced.

Disclosure of Invention

Therefore, the utility model aims to solve the problems of raw material waste and poor appearance quality in the related art, thereby providing a high-precision injection pressing mold.

The utility model provides a high accuracy injection molding press fit die, includes the cover half part and with cover half part complex movable mould part, the cover half part includes the fixed mould seat, install feeding subassembly in the fixed mould seat, feeding subassembly is including advancing the gluey seat, advance gluey seat has main feeding runner, first feeding runner and second feeding runner, first needle valve nozzle is installed to first feeding runner, second needle valve nozzle is installed to second feeding runner, first needle valve nozzle and second needle valve nozzle orientation movable mould part, the fixed mould seat is installed and is used for controlling first needle valve nozzle and the control piece of second needle valve nozzle.

Further, the control member is a needle valve control electromagnetic valve.

Further, the movable mold part comprises a movable mold base, two mold cores are arranged on one side, close to the fixed mold base, of the movable mold base, the first needle valve nozzle faces one of the mold cores, and the second needle valve nozzle faces the second mold core.

Further, a plurality of mounting grooves are formed in the movable die holder, and a balance block for balancing the movable die holder is arranged in the plurality of mounting grooves.

Further, a plurality of mounting grooves are positioned in the middle of the two mold cores, and a plurality of mounting grooves are vertically arranged.

Further, a plurality of guide post guide sleeves are arranged on one side, close to the fixed die holder, of the movable die holder, a plurality of guide holes corresponding to the guide post guide sleeves are arranged on one side, close to the fixed die holder, of the fixed die holder, and the guide holes are in sliding connection with the guide post guide sleeves.

Further, the number of the guide post guide sleeves is four, two guide post guide sleeves are positioned above and below one mold core, and the other two guide post guide sleeves are positioned above and below the other mold core.

Further, a heat insulation plate is arranged on one side of the fixed die seat, which is far away from the movable die seat.

The technical scheme of the utility model has the following advantages:

1. according to the high-precision injection pressing mold, the movable mold part and the fixed mold part are arranged, the feeding component is arranged on the fixed mold part, when injection molding is performed, materials enter from the main feeding flow passage, then flow to the first needle valve nozzle and the second needle valve nozzle respectively from the first feeding flow passage and the second feeding flow passage, and then are sprayed out from the first needle valve nozzle and the second needle valve nozzle to perform injection molding, the needle valve nozzle is used for injection molding, so that the residual materials of the nozzle are effectively reduced, and meanwhile, after injection molding, the sprue trace on the outer surface of a product is smooth, so that the quality of the appearance of the product is effectively improved.

2. According to the high-precision injection pressing mold, the first needle valve nozzle and the second needle valve nozzle can be accurately controlled by using the needle valve control electromagnetic valve, so that the injection quality is improved.

3. According to the high-precision injection molding pressing mold, the guide holes are formed in the fixed mold base, and the guide columns and the guide sleeves matched with the guide holes are arranged on the movable mold base, so that the fixed mold base and the movable mold base can be accurately matched during pressing, and the injection molding precision and the product quality are improved.

4. According to the high-precision injection molding pressing mold, the mounting groove is formed in the movable mold base, the plurality of balance weights are arranged in the mounting groove, and the matching precision of the movable mold base and the fixed mold base is improved by adjusting the weight of the balance weights on the mounting groove, so that the injection molding precision and the product quality are further improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of a high-precision injection press mold according to the present utility model;

FIG. 2 is a schematic structural view of a high-precision injection press mold stationary mold part;

FIG. 3 is a schematic view of the feed assembly of FIG. 2;

fig. 4 is a schematic structural diagram of a movable mold part of the high-precision injection press mold.

Reference numerals illustrate:

1. a stationary mold part; 11. a fixed die holder; 12. a feed assembly; 121. a glue inlet seat; 1211. a main feed runner; 1212. a first feed runner; 1213. a second feed runner; 122. a first needle valve nozzle; 123. a second needle valve nozzle; 124. a control member; 13. a guide hole; 14. a heat insulating plate; 2. a movable mold part; 21. a movable die holder; 211. a mold core; 22. a balance weight; 23. the guide post and the guide sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Referring to fig. 1, a high-precision injection pressing mold comprises a fixed mold part 1 and a movable mold part 2, wherein when in use, after the movable mold part 2 is matched with the fixed mold part 1, a product can be molded by injecting materials from the fixed mold part 1. Specifically, the stationary mold part 1 includes a stationary mold base 11, and a feeding assembly 12 for guiding a material is installed in the stationary mold base 11.

Referring to fig. 2 and 3, more specifically, the feeding assembly 12 includes a feeding block 121, the feeding block 121 is installed in the movable mold block 21, the feeding block 121 has a main feeding flow channel 1211, a first feeding flow channel 1212 and a second feeding flow channel 1213, the main feeding flow channel 1211 is used for introducing materials, the first feeding flow channel 1212 and the second feeding flow channel 1213 are used for ejecting the materials, a cavity is formed in the feeding block 121, and the main feeding flow channel 1211, the first feeding flow channel 1212 and the second feeding flow channel 1213 are communicated with the cavity of the feeding block 121. The inlet of the main feed flow channel 1211 is directed to the side remote from the movable mold part 2, and the outlets of the first feed flow channel 1212 and the second feed flow channel 1213 are directed to the movable mold part 2. The fixed die holder 11 is provided with a feeding port matched with the main feeding flow passage 1211, and during feeding, materials enter the main feeding flow passage 1211 after passing through the feeding port, then flow into the cavity of the glue feeding seat 121 continuously, and finally are ejected from the outlets of the first feeding flow passage 1212 and the second feeding flow passage 1213.

Meanwhile, in order to reduce material waste and improve injection quality, a first needle valve nozzle 122 is installed at the outlet of the first feeding flow channel 1212, a second needle valve nozzle 123 is installed at the outlet of the second feeding flow channel 1213, the first needle valve nozzle 122 and the second needle valve nozzle 123 face the movable mold part 2, and a control member 124 for controlling the first needle valve nozzle 122 and the second needle valve nozzle 123 is installed on the fixed mold base 11, and in this embodiment, the control member 124 is a needle valve control solenoid valve.

Referring to fig. 4, correspondingly, the movable mold part 2 matched with the fixed mold part 1 includes a movable mold base 21, and two mold cores 211 are provided on one side of the movable mold base 21 close to the fixed mold base 11, in this embodiment, the two mold cores 211 are respectively located on two sides of one side of the movable mold base 21 close to the fixed mold base 11, the first needle valve nozzle 122 faces one of the mold cores 211, and the second needle valve nozzle 123 faces the other mold core 211. When injection molding is carried out, the movable mold part 2 is close to the fixed mold part 1 and is attached to the fixed mold part 1, then materials enter from the main feeding flow passage 1211 and are sprayed out to the two mold cores 211 from the first needle valve nozzle 122 and the second needle valve nozzle 123, after injection molding, the movable mold part 2 is separated from the fixed mold part 1, and the product is molded.

Due to the adoption of the needle valve nozzle, materials remained at the water gap can be effectively reduced, material waste is avoided, and on the other hand, after molding, the trace on the outer surface of the product is smooth, so that the appearance quality of the product is effectively improved. In addition, since the material is generally fed by a feeding device such as an injection molding machine, in order to reduce the influence of high temperature on the feeding device, the heat insulation plate 14 is arranged on one side of the fixed die seat 11 away from the movable die seat 21, and the heat insulation plate 14 is arranged, so that the temperature of one side of the fixed die seat 11 away from the movable die seat 21 can be effectively controlled to ensure the normal injection molding.

In order to improve injection molding precision and molding effect, a plurality of mounting grooves are formed in the movable die holder 21, and a balance block 22 for balancing the movable die holder 21 is arranged in the plurality of mounting grooves. In this embodiment, three mounting grooves are located in the middle of the two mold cores 211, and the three mounting grooves are vertically disposed, and correspondingly, three weights 22 are also three, and the three weights 22 are respectively embedded in the three mounting grooves, and it is to be noted that the weights of the three weights 22 are adjustable, that is, the inclination degree of the movable mold base 21 can be adjusted by respectively adjusting the weights of the three weights 22, so that the matching precision of the movable mold base 21 and the fixed mold base 11 is improved.

Meanwhile, a plurality of guide post guide sleeves 23 are arranged on one side of the movable die holder 21, which is close to the fixed die holder 11, and a plurality of guide holes 13 corresponding to the guide post guide sleeves 23 are arranged on one side of the fixed die holder 11, which is close to the fixed die holder 11, and the guide post guide sleeves 23 are in sliding connection with the guide holes 13. In this embodiment, there are four guide post guide sleeves 23, two guide post guide sleeves 23 are located above and below one mold core 211, and the other two guide post guide sleeves 23 are located above and below the other mold core 211, and correspondingly, there are four guide holes 13, and the positions of the four guide holes 13 are in one-to-one correspondence with the positions of the four guide post guide sleeves 23. When the movable mold part 2 is matched with the fixed mold part 1, the guide hole 13 of the movable mold part 2 is matched with the guide post and guide sleeve 23, so that the matching precision of the movable mold part 2 and the fixed mold part 1 is improved, and the injection molding quality is improved.

The working principle of the high-precision injection pressing mold is that materials enter from a main feeding flow passage 1211, then flow to a first needle valve nozzle 122 and a second needle valve nozzle 123 respectively from a first feeding flow passage 1212 and a second feeding flow passage 1213, the materials are sprayed out from the first needle valve nozzle 122 and the second needle valve nozzle 123 for injection molding under the action of a control piece 124, and after injection molding is finished, a movable mold part 2 is separated from a fixed mold part 1, and a product is taken out.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. The utility model provides a high accuracy injection molding press fitting die, its characterized in that, include cover half part (1) and with cover half part (1) complex movable mould part (2), cover half part (1) include fixed die holder (11), install feeding subassembly (12) in cover half holder (11), feeding subassembly (12) are including advancing gluey seat (121), advance gluey seat (121) have main feed runner (1211), first feed runner (1212) and second feed runner (1213), first needle valve nozzle (122) are installed to first feed runner (1212), second needle valve nozzle (123) are installed to second feed runner (1213), first needle valve nozzle (122) and second needle valve nozzle (123) are towards movable mould part (2), cover half holder (11) are installed and are used for controlling needle valve (124) of first nozzle (122) and second needle valve nozzle (123).

2. The high precision injection compression mold of claim 1, wherein the control member (124) is a needle valve control solenoid valve.

3. A high precision injection press-fit mold according to claim 1 or 2, characterized in that the movable mold part (2) comprises a movable mold base (21), wherein two mold cores (211) are provided on one side of the movable mold base (21) close to the fixed mold base (11), wherein the first needle valve nozzle (122) faces one of the mold cores (211), and the second needle valve nozzle (123) faces the second mold core (211).

4. A high-precision injection press-fit die according to claim 3, wherein the movable die holder (21) is provided with a plurality of mounting grooves, and a balance block (22) for balancing the movable die holder (21) is arranged in a plurality of mounting grooves.

5. The high-precision injection press-fit die as claimed in claim 4, wherein a plurality of the mounting grooves are located in the middle of two die cores (211), and a plurality of the mounting grooves are vertically arranged.

6. A high-precision injection press-fit die according to claim 3, wherein a plurality of guide post guide sleeves (23) are arranged on one side, close to the fixed die seat (11), of the movable die seat (21), a plurality of guide holes (13) corresponding to the guide post guide sleeves (23) are arranged on one side, close to the fixed die seat (11), of the fixed die seat (11), and the guide holes (13) are in sliding connection with the guide post guide sleeves (23).

7. The high-precision injection press-fit die according to claim 6, wherein four guide post guide sleeves (23) are provided, two guide post guide sleeves (23) are positioned above and below one die core (211), and the other two guide post guide sleeves (23) are positioned above and below the other die core (211).

8. A high-precision injection press-fit die as claimed in claim 3, wherein a heat-insulating plate (14) is mounted on the side of the fixed die holder (11) away from the movable die holder (21).