Modified plastic processing injection molding machine

Abstract

The utility model discloses an injection molding machine for processing modified plastics, which relates to the technical field of injection molds and comprises a movable mold and a fixed mold, a limiting strip is fixedly mounted on the lower side of the fixed mold, a base is slidably mounted on the surface of the limiting strip, a top opening is formed in the inner bottom wall of the fixed mold, an elastic plate is slidably mounted in the top opening, and a sliding block is fixedly mounted on the lower side of the elastic plate. After injection molding and shaping, the upper support is pulled upwards, the upper support drives the movable mold to be pulled upwards, so that the movable mold is separated from the fixed mold, meanwhile, the upper support drives the lower pressing rod to move upwards, the lower pressing rod drives the U-shaped connecting rod to rotate, and the guide block moves upwards, so that the movable mold is separated from the fixed mold. The guide block drives the supporting column to move upwards, the supporting column drives the sliding block to move upwards, the sliding block drives the elastic plate to move upwards, an injection molding finished product shaped in the fixed mold is subjected to upward force, demolding is conducted, and the effect of rapid demolding is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, especially a kind of modified plastics processing injection molding machine. BACKGROUND

[0002] Modified plastics refers to the general plastic and engineering plastic on the basis, after filling, blending, reinforcing etc. Method modification, improve the performance of flame retardant, strength, impact resistance, toughness etc. Plastic products, through modified plastic parts not only can reach the strength performance of some steel, also have a series of advantages such as light weight, rich color, easy forming, the processing of modified plastics uses injection molding machine to carry out efficient processing.

[0003] In the prior art, the publication number CN221851019U discloses a slider injection mold, which comprises a base, a fixed plate and a movable plate. The end face of the fixed plate is provided with a fixed mold and a set of positioning jig plates. The positioning jig plates are provided with connecting grooves and positioning grooves. The end of the positioning jig plate away from the positioning groove is provided with a buffer assembly. The bottom of the movable plate is provided with a movable mold and a set of positioning protrusions which are distributed in a left-right interval. The structure and shape of the positioning protrusions are consistent with the positioning grooves. The movable mold is detachably connected to the bottom of the movable plate, and the fixed mold is detachably connected to the end face of the fixed plate. Therefore, the disassembly and assembly of the movable mold and the fixed mold are realized. In addition, a set of positioning jig plates are arranged on the end face of the fixed plate, and a set of positioning protrusions are arranged on the bottom of the movable plate. Therefore, during the closing process of the fixed mold and the movable mold, the damage of the fixed mold and the movable mold caused by excessive pressure can be avoided.

[0004] However, the device still has some problems. The movable mold and the fixed mold are combined to form a mold, and the plastic products are produced by injection molding. After the injection cooling is completed, the mold is demolded. Since there is no demolding mechanism, the plastic products in the mold can only be demolded by using tools or vibrating the mold. The demolding process is complicated, which affects the production efficiency. Therefore, the modified plastics processing injection molding machine is disclosed to meet the needs of people. UTILITY MODEL CONTENTS

[0005] The purpose of the present application is to provide a modified plastics processing injection molding machine to solve the problem of lack of demolding mechanism in the background art, which can only be demolded by using tools or vibrating the mold. The demolding process is complicated, which affects the production efficiency.

[0006] In order to achieve the above object, the application provides the following technical scheme: a modified plastic processing injection molding machine, comprising a movable mold and a fixed mold, a limiting strip is fixedly installed on the lower side of the fixed mold, a base is slidably installed on the surface of the limiting strip, a top opening is formed in the inner bottom wall of the fixed mold, a elastic plate is slidably installed in the top opening, a sliding block is fixedly installed on the lower side of the elastic plate, the sliding block is slidably installed in the top opening, a supporting column is fixedly installed on the lower side of the sliding block, a demolding assembly for facilitating the ejection of the elastic plate is formed in the upper side of the base;

[0007] The demolding assembly comprises an installation groove formed in the upper side of the base, a guide block is slidably installed in the installation groove, the lower side of the guide block is tapered, a sliding groove is formed in the inner bottom wall of the installation groove, an extrusion block is slidably installed in the sliding groove, an inclined surface for facilitating the extrusion of the guide block is arranged on the upper side of the extrusion block, a reset spring rod is fixedly installed in the sliding groove, and the other end of the reset spring rod is fixedly installed on one side of the extrusion block.

[0008] Preferably, a through hole is formed in one side of the base, a U-shaped connecting rod is rotatably installed on one side of the extrusion block, and a pressing rod is rotatably installed on the other end of the U-shaped connecting rod.

[0009] Preferably, two installation blocks are fixedly installed on the upper side of the base, two avoiding holes are formed in one side of each of the two installation blocks, two threaded holes are formed in the two sides of the fixed mold, and a second threaded rod is screwedly installed in the threaded hole.

[0010] Preferably, a plurality of limiting rods are fixedly installed on the upper side of the base, an upper support is slidably installed on the surface of each of the plurality of limiting rods, and one side of the upper support is fixedly connected with one side of the pressing rod.

[0011] Preferably, a plurality of positioning holes are formed in the upper side of the upper support, a plurality of first threaded rods are fixedly installed on the upper side of the movable mold, a nut is screwedly installed on each of the plurality of first threaded rods through a corresponding positioning hole, a material guiding hole is formed in the upper side of the upper support, and an injection opening is formed in the upper side of the movable mold.

[0012] Preferably, a plurality of buffer spring rods are fixedly installed on the upper side of the base.

[0013] In summary, the technical effects and advantages of the present application are as follows:

[0014] 1. The utility model discloses after injection molding, through the upper support is pulled to the upper support, and the movable mould is pulled to the movable mould, and the movable mould is separated with the fixed mould, and the upper support drives the lower pressing rod to move upwardly, and the lower pressing rod drives the U-shaped connecting rod to rotate, and the U-shaped connecting rod extrusion block slides, and the reset spring rod and the U-shaped connecting rod drive the inclined surface of extrusion block to adhere and extrude guide block, and guide block moves upwardly, and guide block drives the support column to move upwardly, and the support column drives the sliding block to move upwardly, and the sliding block drives the elastic plate to move upwardly, and the injection molding product in the fixed mould is subjected to the force upwardly, and carries out the ejection, and the quick ejection effect is reached.

[0015] 2. The utility model discloses through setting up the material guide hole on the upper support and being linked with movable mould upper side injection port, can carry out quick injection after the mould is closed, has improved the injection efficiency. ACCURATE DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 It is the structure schematic diagram of movable mould and fixed mould in the utility model;

[0019] Figure 3 It is the section view of base in the utility model;

[0020] Figure 4 It is the section view of fixed mould in the utility model.

[0021] In the drawing: 1, base; 2, limit rod; 3, upper support; 4, fixed mould; 5, limit strip; 6, movable mould; 7, primary threaded rod; 8, nut; 9, mounting block; 10, secondary threaded rod; 11, buffer spring rod; 12, elastic plate; 13, sliding block; 14, support column; 15, extrusion block; 16, reset spring rod; 17, U-shaped connecting rod; 18, lower pressing rod; 19, guide block. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0023] Please refer to Figures 1-4 The embodiments provided by the present utility model:

[0024] A modified plastic processing injection molding machine, comprising a movable mold 6 and a fixed mold 4, the lower side of the fixed mold 4 is fixedly installed with a limiting strip 5, the surface of the limiting strip 5 is slidably installed with a base 1, the inner bottom wall of the fixed mold 4 is provided with a top opening, the top opening is slidably installed with a elastic plate 12, the lower side of the elastic plate 12 is fixedly installed with a sliding block 13, the sliding block 13 is slidably installed in the top opening, the lower side of the sliding block 13 is fixedly installed with a supporting column 14, the upper side of the base 1 is provided with a demolding assembly facilitating the ejection of the elastic plate 12;

[0025] The demolding assembly comprises an installation groove provided on the upper side of the base 1, the installation groove is slidably installed with a guide block 19, the lower side of the guide block 19 is tapered, the inner bottom wall of the installation groove is provided with a sliding groove, the sliding groove is slidably installed with an extrusion block 15, the extrusion block 15 is composed of an inclined block and a sliding strip, the setting of the inclined surface of the extrusion block 15 facilitates the extrusion of the guide block 19, the sliding groove is fixedly installed with a reset spring rod 16, which can push and extrude the other side of the extrusion block 15, the other end of the reset spring rod 16 is fixedly installed on one side of the extrusion block 15, one side of the base 1 is provided with a through hole, the cross section of the through hole is triangular, which prevents the U-shaped connecting rod 17 from moving and limiting, one side of the extrusion block 15 is rotatably installed with the U-shaped connecting rod 17 through the sliding strip, the other end of the U-shaped connecting rod 17 is rotatably installed with a pressing rod 18, the U-shaped connecting rod 17 can push the extrusion block 15 to move horizontally.

[0026] As shown in the figure, Figure 3 The upper side of the base 1 is fixedly installed with a plurality of limiting rods 2, the plurality of limiting rods 2 are installed in four vertex positions of the base 1, the surface of the plurality of limiting rods 2 is slidably installed with an upper support 3, one side of the upper support 3 is fixedly connected with one side of the pressing rod 18.

[0027] As shown in the figure, Figure 2 The upper side of the upper support 3 is provided with a plurality of positioning holes, the upper side of the movable mold 6 is fixedly installed with a plurality of first-order threaded rods 7, the plurality of first-order threaded rods 7 pass through the corresponding positioning holes and are screw-connected with nuts 8, the upper side of the upper support 3 is provided with a material guiding hole, the upper side of the movable mold 6 is provided with an injection molding opening, the material guiding hole is provided on the upper support 3 and is connected with the injection molding opening on the upper side of the movable mold 6, which can realize rapid injection molding after the mold is closed, thereby improving the efficiency of modified plastic injection molding.

[0028] When the device is used, first, the movable mold 6 is installed on the lower side of the upper support 3, the fixed mold 4 is installed on the bottom plate, then the movable mold 6 and the fixed mold 4 are combined by moving downward, after that, the modified plastic material is injected into the material guiding hole of the upper support 3, after injection molding, the upper support 3 is pulled upward, the movable mold 6 is pulled upward by the upper support 3, the movable mold 6 is separated from the fixed mold 4, at the same time, the lower pressing rod 18 is moved upward by the upper support 3, the U-shaped connecting rod 17 is rotated by the lower pressing rod 18, the extrusion block 15 is slid by the U-shaped connecting rod 17, the inclined surface of the extrusion block 15 is adhered and extruded to the guide block 19 under the driving of the reset spring rod 16 and the U-shaped connecting rod 17, the guide block 19 is moved upward, the support column 14 is moved upward by the guide block 19, the sliding block 13 is moved upward by the support column 14, the elastic plate 12 is moved upward by the sliding block 13, the injection molding product in the fixed mold 4 is subjected to upward force and demolding, and the effect of rapid demolding is achieved.

[0029] As shown in Figure 4 The two installation blocks 9 are fixedly installed on the upper side of the base 1, the two installation blocks 9 are provided with two avoiding holes on one side, the fixed mold 4 is provided with two threaded holes on two sides, the secondary threaded rod 10 is screwed and installed in the threaded hole, the fixed mold 4 can be fixed by screwing and installing the secondary threaded rod 10 through the avoiding hole and the threaded hole.

[0030] As shown in Figure 2 The plurality of buffer spring rods 11 are fixedly installed on the upper side of the base 1, the movable mold 6 and the fixed mold 4 can be prevented from colliding and being damaged by the buffer spring.

[0031] Finally, it should be noted that: the above is only the preferred embodiment of the utility model, and is not used for limiting the utility model, although the utility model is described in detail by referring to the foregoing embodiments, for the person skilled in the art, the technical scheme recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A modified plastic processing injection molding machine comprising a movable mold (6) and a stationary mold (4), characterized in that: The lower side of the fixed mold (4) is fixedly installed with a limiting strip (5), the surface of the limiting strip (5) is slidably installed with a base (1), the inner bottom wall of the fixed mold (4) is provided with a top opening, the top opening is slidably installed with a elastic plate (12), the lower side of the elastic plate (12) is fixedly installed with a sliding block (13), the sliding block (13) is slidably installed in the top opening, the lower side of the sliding block (13) is fixedly installed with a supporting column (14), the upper side of the base (1) is provided with a demolding assembly facilitating the elastic plate (12) to be ejected. The demolding assembly comprises an installation groove provided on the upper side of the base (1), the installation groove is slidably installed with a guide block (19), the lower side of the guide block (19) is tapered, the inner bottom wall of the installation groove is provided with a sliding groove, the sliding groove is slidably installed with a extrusion block (15), the upper side of the extrusion block (15) is provided with an inclined surface facilitating the guide block (19) to be extruded, the sliding groove is fixedly installed with a reset spring rod (16), the other end of the reset spring rod (16) is fixedly installed on one side of the extrusion block (15).

2. The modified plastic processing injection molding machine of claim 1, wherein: The one side of the base (1) is provided with a through hole, the one side of the extrusion block (15) is rotatably installed with a U-shaped connecting rod (17), the other end of the U-shaped connecting rod (17) is rotatably installed with a pressing rod (18).

3. A modified plastic processing injection molding machine as defined in claim 2, wherein: The upper side of the base (1) is fixedly installed with two installation blocks (9), the one side of each of the two installation blocks (9) is provided with two avoiding holes, the two sides of the fixed mold (4) are provided with two threaded holes, the threaded holes are screwedly installed with two secondary threaded rods (10).

4. The modified plastic processing injection molding machine of claim 2, wherein: The upper side of the base (1) is fixedly installed with a plurality of limiting rods (2), the surface of each of the plurality of limiting rods (2) is slidably installed with an upper support (3), the one side of the upper support (3) is fixedly connected with the one side of the pressing rod (18).

5. A modified plastic processing injection molding machine as defined in claim 4, wherein: The upper side of the upper support (3) is provided with a plurality of positioning holes, the upper side of the movable mold (6) is fixedly installed with a plurality of primary threaded rods (7), the plurality of primary threaded rods (7) pass through the corresponding positioning holes and are screwedly installed with nuts (8), the upper side of the upper support (3) is provided with a material guiding hole, the upper side of the movable mold (6) is provided with an injection opening.

6. The modified plastic processing injection molding machine of claim 1, wherein: The upper side of the base (1) is fixedly installed with a plurality of buffer spring rods (11).

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