Ejection structure and its fixed mold core

Abstract

The utility model discloses a structure and its fixed model core are ejected, including support base, the upper end surface of support base is provided with the support guide bush, the shaping device fixed setting in the upper end surface center of support guide bush, the upper end surface center of support guide bush is fixed with thin type pneumatic cylinder, and located the output of thin type pneumatic cylinder is provided with the guide sliding base, the utility model discloses a shaping device is set up, when the automatic ejection of injection molding part, three groups of support spring can drive the synchronous lifting of alignment sliding axle and limit sliding seat, make limit sliding seat can complete the injection molding of injection molding, automatic ejection to the outside of injection molding fixed mould, with the synchronous up-down movement of guide sliding seat follow -up setting, can effectively improve the equipment to the efficiency of the ejection of injection molding part, also reduced the floor area and the volume of equipment, effectively improved the efficiency of the injection molding of equipment, also improved the practicality of equipment.

Description

Technical Field

[0001] This utility model relates to the field of injection mold equipment technology, specifically to an ejection structure and its mold core. Background Technology

[0002] Injection molds are key equipment used in the injection molding process of plastics. They allow plastic raw materials to melt under high temperature and pressure, and after cooling and solidification through a specific cavity structure, plastic products of the required shape and size are obtained, which can effectively improve the efficiency of processing injection molded products.

[0003] For example, the utility model patent disclosed in publication number CN222521946U, concerning an ejection mechanism for injection molds, relates to the field of injection mold technology. This utility model includes a base plate, a stabilizing box fixedly installed at the top of the base plate, and evenly distributed limiting rods fixedly installed at the top of the base plate. A movable plate is movably sleeved on the outer side of multiple limiting rods. An mounting block is fixedly installed on one side of the movable plate, and a threaded rod is threaded through the middle of the mounting block. The threaded rod is rotatably installed at the top of the base plate. An upper mold is fixedly installed at the bottom of the movable plate, and a lower mold is fixedly clamped at the top of the stabilizing box. A first electric push rod is fixedly installed on the lower inner surface of the stabilizing box, and a support plate is fixedly installed at the output end of the first electric push rod. This application enables the collection of injection molds, avoiding the need for manual handling by workers after injection molding, thus reducing physical labor and risks for workers.

[0004] Although the above-mentioned injection mold can eject the internal injection parts, its ejection method using cylinders and push rods greatly increases the size of the mold and the complexity of its use, reducing the convenience and stability of the injection mold. Therefore, there is an urgent need for an ejection structure and its fixed mold core to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an ejector structure and its fixed mold core to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an ejection structure, including a shaping device, the shaping device including an injection mold, the lower end face of the injection mold having four corners with fixed feet, and the upper end face of the injection mold having four corners with alignment guide grooves, and the ejection device being elastically and sealingly engaged with the inner end face of the injection mold.

[0007] The ejection device includes a limiting slide, a guide mold is fixedly provided on the upper end surface of the limiting slide, and three sets of alignment slide shafts are equidistantly provided on the lower end surface of the limiting slide, with a support spring provided at the bottom of the alignment slide shaft.

[0008] A mold core includes a support base, a support guide seat is provided on the upper end surface of the support base, a molding device is fixedly disposed at the center of the upper end surface of the support guide seat, a thin cylinder is fixedly disposed at the center of the upper end surface of the support guide seat, and a guide slide is disposed at the output end of the thin cylinder, a feeding guide is fixedly disposed at the center of the front end surface of the guide slide, and an injection upper mold is fixedly disposed at the center of the lower end surface of the guide slide, and three sets of positioning pins are symmetrically disposed at equal intervals on the side of the lower end surface of the guide slide.

[0009] Preferably, the guide slide and the support guide are slidably engaged, and the feeding conduit is connected to the interior of the injection mold. The support guide provides sufficient axial limiting foundation for the guide slide, thereby improving the accuracy and stability of the subsequent vertical displacement of the injection mold.

[0010] Preferably, the alignment guide groove is slidably connected to the positioning pin, and the upper end face of the guide mold has two sets of positioning slots, and the positioning slots are slidably connected to the injection mold. The depth of the positioning slots is less than that of the alignment guide groove, so that when the guide slide moves down, it can be pre-limited by the positioning pin and the positioning slots, thereby driving the limiting slide to be flush with the inner wall of the injection mold, which facilitates subsequent fast injection operation.

[0011] Preferably, the upper end face of the support spring is fixedly connected to the lower end face of the injection mold, and the limiting slide is sealed and slidably connected to the inside of the injection mold. The three sets of support springs can provide sufficient elasticity for the limiting slide, thereby pushing the limiting slide out of the injection mold and improving the efficiency and stability of subsequent unloading of injection molded parts.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by setting up a molding device, enables three sets of support springs to drive the alignment slide shaft and the limiting slide to rise synchronously during the automated ejection of the injection molded part. This allows the limiting slide to automatically eject the completed injection molded part to the outside of the injection mold. The follow-up setting, which moves up and down synchronously with the guide slide, can effectively improve the efficiency of the equipment in ejecting the injection molded part, while also reducing the equipment's floor space and volume. This effectively improves the efficiency of the injection molding process and enhances the practicality of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0015] Figure 2 This is a side view of the main body of this utility model;

[0016] Figure 3 This is a schematic diagram of the shaping device of this utility model;

[0017] Figure 4 This is a schematic diagram of the ejection device of this utility model.

[0018] In the diagram: 1-Support base, 2-Shaping device, 3-Injection upper mold, 4-Guide slide, 5-Thin cylinder, 6-Feeding guide tube, 7-Positioning clip, 8-Support guide seat, 21-Fixed foot, 22-Ejection device, 23-Alignment guide groove, 24-Injection fixed mold, 221-Support spring, 222-Alignment slide, 223-Limit slide, 224-Guide fixed mold. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 An embodiment of the present invention provides: an ejection structure, including a shaping device 2, the shaping device 2 including an injection mold 24, the lower end face of the injection mold 24 is provided with four corners of fixed feet 21, and the upper end face of the injection mold 24 is provided with four corners of alignment guide grooves 23, and the inner end face of the injection mold 24 is elastically sealed and snapped with an ejection device 22.

[0021] The ejection device 22 includes a limiting slide 223, a guide mold 224 is fixedly provided on the upper end surface of the limiting slide 223, and three sets of alignment slide shafts 222 are equidistantly provided on the lower end surface of the limiting slide 223, and a support spring 221 is provided at the bottom of the alignment slide shafts 222.

[0022] A mold core includes a support base 1, a support guide 8 is provided on the upper end surface of the support base 1, a shaping device 2 is fixedly provided at the center of the upper end surface of the support guide 8, a thin cylinder 5 is fixedly provided at the center of the upper end surface of the support guide 8, and a guide slide 4 is provided at the output end of the thin cylinder 5. A feeding guide 6 is fixedly provided at the center of the front end surface of the guide slide 4, and an injection upper mold 3 is fixedly provided at the center of the lower end surface of the guide slide 4. Three sets of positioning pins 7 are symmetrically arranged at equal intervals on the side of the lower end surface of the guide slide 4.

[0023] The guide slide 4 and the support guide 8 are slidably engaged, and the feeding guide 6 is connected to the interior of the injection mold 3. The support guide 8 can provide sufficient axial limiting foundation for the guide slide 4, thereby improving the accuracy and stability of the subsequent vertical displacement of the injection mold 3.

[0024] The alignment guide groove 23 is slidably connected to the positioning pin 7. Two sets of positioning slots are provided on the upper surface of the guide mold 224, and the positioning slots are slidably connected to the injection mold 3. The depth of the positioning slots is less than that of the alignment guide groove 23, so that when the guide slide 4 moves down, it can be pre-limited by the positioning pin 7 and the positioning slots, thereby driving the limiting slide 223 to be flush with the inner wall of the injection mold 24, which facilitates the subsequent rapid injection operation.

[0025] The upper end face of the support spring 221 is fixedly connected to the lower end face of the injection mold 24, and the limiting slide 223 is sealed and slidably connected to the inside of the injection mold 24. The three sets of support springs 221 can provide sufficient elasticity for the limiting slide 223, thereby pushing the limiting slide 223 out of the injection mold 24, improving the efficiency and stability of subsequent injection part unloading. At the same time, the three sets of alignment slide shafts 222 slide and limit the bottom of the injection mold 24, thereby improving the accuracy and stability of the vertical displacement of the limiting slide 223.

[0026] Working principle: Before injection molding, the operator can connect the external material supply pipe to the loading conduit 6 to facilitate continuous material supply. Then, the operator can activate the thin cylinder 5. At this time, the thin cylinder 5 can drive the guide slide 4 and three sets of positioning pins 7 to move downwards. Simultaneously, the guide slide 4 can also drive the upper injection mold 3 to move downwards synchronously. When the positioning pins 7 move downwards, the central positioning pin 7 can first insert into the positioning groove on the upper part of the guide mold 224. At the same time, when the two sets of side positioning pins 7 are positioned inside the upper alignment guide groove 23 of the injection mold 24, the central positioning pin 7 can drive the limiting slide 223 to move downwards. When the guide slide 4 completely closes the injection mold... When the upper mold 3 reaches the injection position inside the fixed mold 24, the upper injection mold 3 can reach the injection position inside the fixed mold 24. At the same time, the guide mold 224 can be completely flush with the inner wall of the fixed mold 24. Then the upper injection mold 3 completes the injection operation. When unloading, the thin cylinder 5 can drive the guide slide 4 and the upper injection mold 3 to reset. At the same time, the positioning pin 7 releases the limit slide 223. At this time, the three sets of support springs 221 can push the limit slide 223 to move upward inside the fixed mold 24. At the same time, the limit slide 223 can drive the guide mold 224 and the injection mold 24 to lift the injection part that has been injected inside the fixed mold 24 until the injection part is completely exported from the fixed mold 24, which is convenient for subsequent quick collection.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ejection structure, comprising a shaping device (2), characterized in that: The molding device (2) includes an injection mold (24), with fixed feet (21) provided at the four corners of the lower end face of the injection mold (24), and alignment guide grooves (23) provided at the four corners of the upper end face of the injection mold (24). An ejection device (22) is elastically sealed and snapped onto the inner end face of the injection mold (24). The ejection device (22) includes a limiting slide (223), a guide mold (224) is fixedly provided on the upper end surface of the limiting slide (223), and three sets of alignment slides (222) are equidistantly provided on the lower end surface of the limiting slide (223), and a support spring (221) is provided at the bottom of the alignment slide (222).

2. A fixed mold core, comprising a support base (1), wherein a support guide (8) is provided on the upper end surface of the support base (1), and the molding device (2) is fixedly disposed at the center of the upper end surface of the support guide (8), characterized in that: It also includes the ejection structure as described in claim 1.

3. A fixed mold core according to claim 2, characterized in that: A thin cylinder (5) is fixedly installed at the center of the upper end face of the support guide seat (8), and a guide slide (4) is installed at the output end of the thin cylinder (5). A feeding guide (6) is fixedly installed at the center of the front end face of the guide slide (4), and an injection mold (3) is fixedly installed at the center of the lower end face of the guide slide (4). Three sets of positioning pins (7) are symmetrically arranged at equal intervals on the side of the lower end face of the guide slide (4).

4. A fixed mold core according to claim 3, characterized in that: The guide slide (4) is slidably engaged with the support guide (8), and the feeding guide (6) is connected to the interior of the injection mold (3).

5. A fixed mold core according to claim 3, characterized in that: The alignment guide groove (23) is slidably connected to the positioning pin (7), and the upper end face of the guide mold (224) is provided with two sets of positioning slots, and the positioning slots are slidably connected to the injection upper mold (3).

6. A fixed mold core according to claim 3, characterized in that: The upper end face of the support spring (221) is fixedly connected to the lower end face of the injection mold (24), and the limiting slide (223) is sealed and slidably connected to the inside of the injection mold (24).

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