Convenient demolding device for injection mold

By introducing multiple sets of guide pillars and ejector pin sliding structures, spray arms for applying release agent, and blower cooling components into the injection mold, the problem of low demolding efficiency in injection molds is solved, achieving efficient demolding and cooling effects and extending the mold's service life.

CN223849878UActive Publication Date: 2026-01-30SOFIA MASCH TECH (SUZHOU) CO LTD
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Patent Information

Application Number
CN202520468177.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-01-30
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

In the use of existing injection molds, it is inconvenient to increase the demolding efficiency of the injection material through ejector pins, and the demolding efficiency is easily reduced by long-term use of the mold groove.

Method used

The system employs multiple sets of guide pillars, main ejector pins, and auxiliary ejector pins to form a sliding structure. Combined with a spray arm and blower assembly, it sprays release agent through the nozzle and uses a cold air blower to accelerate cooling, thereby achieving efficient demolding of the mold cavity.

Benefits of technology

It improves the demolding efficiency and cooling efficiency of injection molds, ensuring that the injection material can smoothly leave the mold cavity and extending the service life of the mold.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223849878U_ABST
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Abstract

The utility model discloses a convenient demoulding device for an injection mould, which comprises an operating platform, a left mould is arranged above the operating platform, a plurality of groups of guide columns are inserted on the left mould, a mould groove is arranged on the left mould, and a main ejector pin is inserted on the left mould close to the rear part of the mould groove. And a plurality of groups of auxiliary ejector pins are correspondingly inserted into the corners of the mold groove on the outer side of the main ejector pin. According to the injection mold convenient to demold, the left mold, the main ejector pin and the auxiliary ejector pins form a sliding structure through the multiple sets of guide columns, and therefore it is guaranteed that the corners of the mold can be separated from the mold groove through the multiple sets of auxiliary ejector pins while the mold subjected to injection molding is demolded through the main ejector pin; the spraying arm of the device and the operation table form a horizontal pushing structure through the telescopic arm and the connecting plate under the action of the electric push rod on the right side, so that the spraying head assembly can be pushed to move to the mold groove under the action of the electric push rod, a release agent is sprayed into the mold groove at regular intervals, and then the demolding efficiency of the mold is guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is an injection mold convenient to demould device. BACKGROUND

[0002] Injection mold is a kind of device for batch production of some complex shape components by precise machining method, is widely used in the forming of thermoplastic product, is important tool in the production of plastic product, and its performance and quality directly affect the quality of final product. To increase the diversity of plastic parts, and improve the production efficiency of plastic parts, then use injection mold to process and form injection material.

[0003] And injection mold in the use process, injection material is injected into mold groove by nozzle, and material is cooled and formed by cooling system, so as to be ejected by ejector pin, and the existing injection mold in the use process, only through ejector pin is inconvenient to increase the demolding efficiency of injection material, and the demolding efficiency of mold groove is easily reduced by long-term use. Therefore, an injection mold convenient to demould device is provided to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an injection mold convenient to demould device to solve the problem that the existing injection mold in the use process is inconvenient to increase the demolding efficiency of injection material only by ejector pin, and the demolding efficiency of mold groove is easily reduced by long-term use.

[0005] To achieve the above object, the utility model provides the following technical scheme: an injection mold convenient to demould device, including operation platform, the operation platform is equipped with left mold on the top, and a plurality of guide columns are inserted into the left mold, the left mold is equipped with right mold on one side, and the left mold is provided with mold groove, the right mold is equipped with nozzle on one end, the left mold is provided with mold groove, and the rear of mold groove is inserted into the main ejector pin on the left mold, and the outer side of main ejector pin is inserted into a plurality of vice ejector pins at the corner of mold groove;

[0006] The operation platform is correspondingly provided with receiving groove, and the both sides of receiving groove are respectively provided with fixed frame on the operation platform, the fixed frame is respectively embedded with electric push rod on opposite surfaces, and the electric push rod is respectively provided with telescopic arm on opposite surfaces, the telescopic arm on the right side of operation platform is provided with connecting plate, and the other end of connecting plate is provided with spray arm, the spray arm is provided with feed pipe, and the left side of spray arm is uniformly provided with a plurality of spray heads;

[0007] The blowing arm is provided with a blower on one side, and a blowing pipe is arranged on the blower, one end of the blowing pipe is connected with a cold air blower, the blower is provided with a fixing block on one side, and a telescopic arm on the left side of the operation table is inserted into the fixing block, a water inlet pipe is arranged on the main ejector pin, and a water outlet pipe is arranged below the water inlet pipe, the water inlet pipe and the water outlet pipe are provided with a cold water pipe at one end, and the cold water pipe is embedded in the main ejector pin.

[0008] Preferably, the left mold is connected with the main ejector pin and the auxiliary ejector pin through a plurality of guide columns to form a sliding structure.

[0009] Preferably, the blowing arm is connected with the operation table through the telescopic arm and the connecting plate under the action of the electric push rod to form a horizontal pushing structure.

[0010] Preferably, the blower is connected with the cold air blower through the blowing pipe to form a communication structure, and the telescopic arm on the left side of the operation table is connected with the fixing block under the action of the electric push rod to form a horizontal pushing structure.

[0011] Compared with the prior art, the beneficial effects of the utility model are that: the left mold of the demolding device of the injection mold is connected with the main ejector pin and the auxiliary ejector pin through a plurality of guide columns to form a sliding structure, so that the mold after injection is demolded through the main ejector pin, and the mold corners are ensured to be separated from the mold groove through a plurality of auxiliary ejector pins, the blowing arm of the device is connected with the operation table through the telescopic arm and the connecting plate under the action of the electric push rod to form a horizontal pushing structure, so that the nozzle assembly can be moved to the mold groove under the action of the electric push rod to regularly spray the demolding agent into the mold groove, thereby ensuring the demolding efficiency of the mold, the blower of the device is connected with the cold air blower through the blowing pipe to form a communication structure, and the telescopic arm on the left side of the operation table is connected with the fixing block under the action of the electric push rod to form a horizontal pushing structure, so that the cooling efficiency of the injection material can be further increased through the blower assembly, and the inside of the mold groove can be regularly accelerated through the blower, and at the same time, the blowing arm assembly can be supported through the telescopic arm on the left side. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structure schematic view of the blowing arm assembly of the demolding device of the injection mold convenient for demolding of the utility model;

[0013] Figure 2 It is a side view structure schematic view of the blowing arm assembly of the demolding device of the injection mold convenient for demolding of the utility model;

[0014] Figure 3 It is a top view structure schematic view of the blower assembly of the demolding device of the injection mold convenient for demolding of the utility model;

[0015] Figure 4 It is an internal structure schematic view of the main ejector pin of the demolding device of the injection mold convenient for demolding of the utility model.

[0016] In the figure: 1, operating table, 2, guide column, 3, left mold, 4, right mold, 5, main ejector pin, 6, auxiliary ejector pin, 7, nozzle, 8, fixed frame, 9, electric push rod, 10, telescopic arm, 11, connecting plate, 12, spray arm, 13, spray head, 14, hair dryer, 15, cold water pipe. DETAILED DESCRIPTION

[0017] 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 belong to the scope of protection of the utility model.

[0018] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of injection mold convenient to demould device, including operating table 1, operating table 1 is equipped with left mold 3 on top, and multiple groups of guide column 2 are inserted on left mold 3, left mold 3 is equipped with right mold 4 on one side, and left mold 3 is equipped with mold groove, right mold 4 is equipped with nozzle 7 on one end, left mold 3 is equipped with mold groove, and main ejector pin 5 is inserted on left mold 3 on the back side of mold groove, and the outside of main ejector pin 5 is inserted with multiple groups of auxiliary ejector pin 6 on the corner of mold groove, need additional explanation, operating table 1 is equipped with support assembly, so as to be installed on support for operation according to the actual use of injection mold.

[0019] Further, left mold 3 is formed into sliding structure with main ejector pin 5 and auxiliary ejector pin 6 by multiple groups of guide column 2, so as to be assisted by multiple groups of auxiliary ejector pin 6 to demould at the corner of injection material and mold groove, to increase the demould efficiency of mold after injection.

[0020] Operating table 1 is equipped with receiving groove on the side, and fixed frame 8 is equipped on the both sides of receiving groove on operating table 1, and electric push rod 9 is embedded in opposite surface of fixed frame 8, and telescopic arm 10 is equipped on opposite surface of electric push rod 9, and connecting plate 11 is equipped on the telescopic arm 10 of right side of operating table 1, and spray arm 12 is equipped on the other end of connecting plate 11, and inlet pipe is equipped on spray arm 12, and multiple groups of spray head 13 are evenly equipped on the side of spray arm 12 close to left mold 3.

[0021] Further, spray arm 12 is formed into horizontal pushing structure with operating table 1 by telescopic arm 10, connecting plate 11 and operating table 1 under the action of right side electric push rod 9, so as to be pushed to move horizontally by spray arm 12 under the action of electric push rod 9, to spray demoulding agent in mold groove by spray head 13 regularly, to increase the demould efficiency of injection mold in left mold 3.

[0022] The spray arm 12 is provided with a blower 14 on one side, and the blower 14 is provided with a blowing pipe, the other end of the blowing pipe is connected with a cold air blower, the blower 14 is provided with a fixed block on one side, and the fixed block is inserted with the telescopic arm 10 on the left side of the operation table 1, the main ejector pin 5 is provided with a water inlet pipe, and a water outlet pipe is correspondingly arranged below the water inlet pipe, the water inlet pipe and the water outlet pipe are provided with a cold water pipe 15 at one end, and the cold water pipe 15 is embedded in the main ejector pin 5, and the water inlet pipe can be installed on one end or side of the main ejector pin 5 according to the installation of the main ejector pin 5, so as to avoid the influence of the cold water pipe 15 on the movement of the main ejector pin 5.

[0023] Further, the blower 14 forms a communication structure with the cold air blower through the blowing pipe, so that the cooling efficiency of the injection molding material and the mold groove can be increased through the blower 14, and the telescopic arm 10 on the left side of the operation table 1 forms a horizontal pushing structure with the fixed block under the action of the electric push rod 9, so that the stability of the spray arm 12 during use can be increased through the electric push rod 9 assembly on the left side of the operation table 1.

[0024] Working principle: when using the injection mold convenient demolding device, first, the material is injected into the mold groove of the left mold 3 through the injection nozzle 7, and the injection material is cooled through the cold water assembly embedded in the left mold 3, after the injection material is cooled, it can be ejected from the mold groove through the main ejector pin 5 and the auxiliary ejector pin 6 for unloading, at the same time, a plurality of auxiliary ejector pins 6 can be used to ensure that the corners of the injection material can be separated from the mold groove, so as to ensure the demolding effect of the material in the mold groove, and the main ejector pin 5 can increase its cooling effect through the cold water pipe 15 during use, so as to increase the demolding effect of the main ejector pin 5 on the injection material; during the demolding of the injection material, the electric push rod 9 on both sides of the operation table 1 can be started, the electric push rod 9 drives the spray arm 12 to move horizontally through the telescopic arm 10, at the same time, the telescopic arm 10 on the left side is inserted into the fixed block of the blower 14, so as to increase the stability of the spray arm 12 assembly during use through the telescopic arm 10 on the left side, then the cold air blower can be started, so that the cooling efficiency of the injection mold can be increased through the cold air blown by the blower 14, at the same time, the cooling rate of the mold groove can be accelerated through the cold air blower 14, so as to effectively ensure the demolding efficiency of the injection mold; during the demolding process of the injection mold, the spray head 13 can be started regularly, so as to spray the demolding agent in the mold groove through the spray head 13, thereby increasing the demolding efficiency of the mold on the injection material, which is the use process of the injection mold convenient demolding device.

[0025] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A kind of injection mold facilitates the device of demoulding, including operation platform (1), the left mold (3) is set on top, and the left mold (3) is inserted with multiple groups of guide pillar (2), the left mold (3) is correspondingly provided with right mold (4) on one side, and the left mold (3) is set with mold groove, the right mold (4) is provided with nozzle (7) at one end, characterized by: The left mold (3) is provided with a mold groove, and a main ejector pin (5) is inserted into the mold groove at the rear of the left mold (3), and a plurality of auxiliary ejector pins (6) are inserted into the mold groove at the outer side of the main ejector pin (5); The operating table (1) is provided with a receiving groove, and the receiving groove is provided with a fixing frame (8) on both sides of the operating table (1), and the fixing frame (8) is provided with an electric push rod (9) on the opposite surface, and the electric push rod (9) is provided with a telescopic arm (10) on the opposite surface, and the telescopic arm (10) on the right side of the operating table (1) is provided with a connecting plate (11), and the other end of the connecting plate (11) is provided with a spray arm (12), and the spray arm (12) is provided with an inlet pipe, and the spray arm (12) is provided with a plurality of spray heads (13) on the side close to the left mold (3); The spray arm (12) is provided with a blower (14) on one side, and the blower (14) is provided with a blowing pipe, and the other end of the blowing pipe is connected with a cold air blower, and the blower (14) is provided with a fixing block on one side, and the fixing block is inserted with the telescopic arm (10) on the left side of the operating table (1), and the main ejector pin (5) is provided with an inlet pipe, and the inlet pipe is provided with an outlet pipe below, and the inlet pipe and the outlet pipe are provided with a cold water pipe (15) on one end, and the cold water pipe (15) is embedded in the main ejector pin (5).

2. A device for facilitating ejection of a molded article from an injection mold in accordance with claim 1, wherein: The left mold (3) is provided with a plurality of guide columns (2) respectively connected with the main ejector pin (5) and the auxiliary ejector pin (6) to form a sliding structure.

3. A device for facilitating ejection of a molded article from an injection mold cavity as defined in claim 1, wherein: The spray arm (12) is connected with the operating table (1) through the telescopic arm (10) and the connecting plate (11) under the action of the right electric push rod (9) to form a horizontal pushing structure.

4. The ejection device for injection mold according to claim 1, wherein: The blower (14) is connected with the cold air blower through the blowing pipe to form a communication structure, and the telescopic arm (10) on the left side of the operating table (1) is connected with the fixing block to form a horizontal pushing structure under the action of the electric push rod (9).