Injection molding device of injection molding machine for plastic part processing

Abstract

The utility model belongs to the technical field of injection molding, and particularly relates to an injection molding device of an injection molding machine for plastic part processing, which comprises an injection molding cylinder, an extrusion molding screw rod is arranged in the injection molding cylinder, and a cleaning box is arranged at one end of the injection molding cylinder close to a feeding end. The extrusion molding screw enters the cleaning box, raw materials attached to the extrusion molding screw are cleaned through the cleaning assembly, the cleaning assembly comprises a high-pressure water pipe in the cleaning box, a spray head is arranged on the high-pressure water pipe, and water flow is sprayed to the extrusion molding screw through the spray head. According to the plastic extrusion screw cleaning device, residual raw materials on the plastic extrusion screw can be cleaned, the cleaning mode is convenient, the plastic extrusion screw is not damaged, cleaning water resources can be recycled, and resource waste is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding technical field, concretely is injection molding device of injection molding machine for plastic part processing. BACKGROUND

[0002] The injection molding machine is a kind of equipment for producing plastic products, and it is widely used in various industries such as toys, household appliances, automotive parts, etc. The injection molding machine is mainly composed of a feeding system, a heating system, a mold clamping system and a control system. The feeding system is responsible for feeding the raw materials into the machine, the heating system is responsible for melting the raw materials, the mold clamping system is responsible for closing the mold and injecting the molten material into the mold, and the control system is responsible for controlling the operation of the machine.

[0003] However, the existing injection molding device has the following problems: when melting two batches of different raw materials, the raw materials of the previous batch are easily left on the screw, causing the second batch of raw materials to mix with the first batch of raw materials, and the molten raw materials do not meet the standards, resulting in color deviation of the products produced by the second batch of raw materials, and a large amount of raw materials are wasted. INVENTION CONTENTS

[0004] In order to overcome the above-mentioned defects in the prior art, the utility model provides an injection molding device of injection molding machine for plastic part processing.

[0005] An injection molding device of injection molding machine for plastic part processing, comprising an injection molding cylinder, an extrusion screw is arranged in the injection molding cylinder, a cleaning box is arranged at one end of the injection molding cylinder close to the feeding port, before changing the raw materials for injection molding, the extrusion screw enters the cleaning box and is cleaned by a cleaning assembly, the cleaning assembly comprises a high-pressure water pipe in the cleaning box, a spray head is arranged on the high-pressure water pipe, and water flow is sprayed onto the extrusion screw through the spray head.

[0006] Further, the high-pressure water pipe comprises a plurality of shunt pipes that are in communication with each other, and the plurality of shunt pipes are equally distributed along the length direction of the extrusion screw, a plurality of spray heads that spray water flow onto the extrusion screw from different angles are installed on each shunt pipe.

[0007] Further, an extension is arranged at the tail end of the extrusion screw, a sleeve is arranged on the outer wall of the extension, a limiting protrusion is arranged on the inner wall of the sleeve along the length direction thereof, a limiting groove that matches the limiting protrusion is arranged on the extension, the end of the sleeve away from the extrusion screw extends out of the cleaning box and is connected with a driving motor through a chain wheel and chain mechanism, and the driving motor is installed on the workbench.

[0008] Further, the extension part is rotatably installed with a moving plate near one end of the extrusion screw, the moving plate is connected with a moving lead screw in cooperation, the moving lead screw is installed on the cleaning box, the moving plate is slidably connected with a guide rod, the guide rod is installed on the cleaning box, the moving lead screw is connected with a rotary motor through a chain wheel and chain structure, and the rotary motor is installed on the workbench.

[0009] Further, the bottom of the cleaning box is provided with a water storage pool, and the water storage pool is connected with a pipeline and a high-pressure water pipe through a water pump.

[0010] Further, the top of the water storage pool is provided with a filter screen.

[0011] Further, the sidewall of the cleaning box is provided with a transparent box door.

[0012] Due to the adoption of the above technical scheme, the beneficial technical effects of the utility model are that the cleaning assembly is arranged in the utility model, the residual raw materials on the extrusion screw can be cleaned, the cleaning method is convenient, the extrusion screw is not damaged, the water resource for cleaning can be recycled and utilized, and resource waste is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structure schematic view of the injection molding device of the injection molding machine for plastic part machining in the utility model;

[0014] Figure 2 It is a top view of the injection molding device of the injection molding machine for plastic part machining in the utility model;

[0015] Figure 3 It is a structure schematic view of the utility model Figure 2 It is a sectional structure schematic view of the utility model in A-A direction;

[0016] Figure 4 It is a structure schematic view of the extrusion screw in the utility model;

[0017] Figure 5 It is a connection schematic view of the extrusion screw and the sleeve in the utility model;

[0018] Figure 6 It is a structure schematic view of the high-pressure water pipe in the utility model;

[0019] Figure 7 It is a structure schematic view of the filter screen in the utility model.

[0020] In the drawing, 1 is an injection molding cylinder, 2 is an extrusion screw, 3 is a cleaning box, 4 is a high-pressure water pipe, 5 is a spray head, 6 is a shunt pipe, 7 is an extension part, 8 is a sleeve, 9 is a limiting groove, 10 is a driving motor, 11 is a moving plate, 12 is a moving lead screw, 13 is a guide rod, 14 is a rotary motor, 15 is a water storage pool, 16 is a filter screen, and 17 is a box door. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the technical scheme of the utility model, the utility model will be further described below in combination with the drawings. Obviously, the drawings described below are only one embodiment of the utility model, and for those skilled in the art, other embodiments can be obtained according to the drawings and the embodiment without creative labor, and all belong to the protection scope of the utility model.

[0022] According to Figures 1-7 As shown in the figure, an injection molding device of a plastic part processing injection molding machine, including injection molding cylinder 1, the injection molding cylinder 1 is equipped with plastic extruding screw 2, the injection molding cylinder 1 is equipped with cleaning tank 3 near the one end of feeding, before changing raw material injection molding, plastic extruding screw 2 enters cleaning tank 3 and is cleaned by cleaning assembly on the raw material attached to plastic extruding screw 2, the cleaning assembly includes high-pressure water pipe 4 in cleaning tank 3, the high-pressure water pipe 4 is equipped with spray head 5, water flow is sprayed to plastic extruding screw 2 through spray head 5.

[0023] In the above specific technical scheme, when the raw material of different colors needs to be replaced for injection molding, in order to prevent the mixing of two kinds of raw materials, affecting the product quality, the utility model provides an injection molding device of a plastic part processing injection molding machine, sets up cleaning assembly, can clean the residual raw material on plastic extruding screw 2, and the cleaning method is convenient, does not damage plastic extruding screw 2.

[0024] The high-pressure water pipe 4 includes several shunt pipes 6 that flow to each other, several shunt pipes 6 are equidistantly distributed along the length direction of plastic extruding screw 2, and a plurality of spray heads 5 that spray water flow to plastic extruding screw 2 from different angles are installed on each shunt pipe. Through the multi-angle spraying of the spray head 5, the quality and efficiency of the cleaning of the plastic extruding screw 2 are improved, and it is worth noting that the plastic extruding screw 2 is in a rotating state during the cleaning process, which is conducive to the circumferential cleaning of the plastic extruding screw 2.

[0025] The tail end of the plastic extruding screw 2 is provided with an extension part 7, the outer wall of the extension part 7 is provided with a sleeve 8, the inner wall of the sleeve 8 is provided with a limiting protrusion along the length direction thereof, the extension part 7 is provided with a limiting groove 9 matched with the limiting protrusion, one end of the sleeve 8 away from the plastic extruding screw 2 extends out of the cleaning tank 3 and is connected with a driving motor 10 through a chain wheel and chain mechanism, and the driving motor 10 is installed on the workbench. Starting the driving motor 10 can drive the sleeve 8 to rotate, the sleeve 8 is provided with a limiting protrusion, the extension part 7 is provided with a limiting groove 9, and through the cooperation of the limiting protrusion and the limiting groove 9, the sleeve 8 can drive the plastic extruding screw 2 to rotate, so as to perform injection molding work, and the plastic extruding screw 2 can slide along the length direction of the sleeve 8.

[0026] The extension part 7 is rotatably installed with a moving plate 11 near one end of the extrusion screw 2, the moving plate 11 is connected with a moving lead screw 12, the moving lead screw 12 is installed on the cleaning box 3, the moving plate 11 is slidably connected with a guide rod 13, the guide rod 13 is installed on the cleaning box 3, the moving lead screw 12 is connected with a rotary motor 14 through a chain wheel and chain structure, the rotary motor 14 is installed on the workbench, starting the rotary motor 14 can make the extrusion screw 2 move from the injection cylinder 1 to the cleaning box 3 for raw material cleaning.

[0027] The lower part of the cleaning box 3 is provided with a water storage tank 15, the water storage tank 15 is connected with a pipeline and the high-pressure water pipe 4 through a water pump, the top of the water storage tank 15 is provided with a filter screen 16, the water flow sprayed by the nozzle 5 flows to the water storage tank 15 through the filter screen 16 after cleaning the extrusion screw 2, the water outlet pipe in the water storage tank 15 is connected with the water inlet pipe of the high-pressure water pipe 4 through the water pump, thereby reducing the waste of water resources.

[0028] The sidewall of the cleaning box 3 is provided with a transparent box door 17, which is beneficial to observe the cleaning condition of the extrusion screw 2.

[0029] The above embodiment is only an exemplary embodiment of the present application, and is not used to limit the present application, the protection scope of the present application is defined by the claims, those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and the modification or equivalent replacement should also be regarded as falling within the protection scope of the present application.

Claims

1. An injection device of an injection molding machine for processing plastic parts, comprising an injection cylinder (1), characterized in that, The injection cylinder (1) is provided with an extrusion screw (2), and the injection cylinder (1) is provided with a cleaning box (3) near one end of the injection cylinder (1) for feeding. Before the raw material is replaced for injection molding, the extrusion screw (2) enters the cleaning box (3) to clean the raw material attached to the extrusion screw (2) by a cleaning assembly. The cleaning assembly comprises a high-pressure water pipe (4) in the cleaning box (3), and the high-pressure water pipe (4) is provided with a spray head (5). The water flow is sprayed onto the extrusion screw (2) through the spray head (5).

2. An injection molding apparatus of an injection molding machine for processing plastic parts according to claim 1, characterized in that, The high-pressure water pipe (4) comprises a plurality of shunt pipes (6) in communication with each other, and a plurality of shunt pipes (6) are equidistantly distributed along the length direction of the extrusion screw (2). A plurality of spray heads (5) are installed on each shunt pipe (6) to spray water flow to the extrusion screw (2) from different angles.

3. The injection molding apparatus of claim 1 wherein, The tail end of the extrusion screw (2) is provided with an extension part (7), and the outer wall of the extension part (7) is provided with a sleeve (8). The inner wall of the sleeve (8) is provided with a limiting protrusion along the length direction thereof. The extension part (7) is provided with a limiting groove (9) matched with the limiting protrusion. The end of the sleeve (8) away from the extrusion screw (2) extends out of the cleaning box (3) and is connected with a drive motor (10) through a chain wheel and chain mechanism. The drive motor (10) is installed on the workbench.

4. The injection molding apparatus of claim 3 wherein, The end of the extension part (7) close to the extrusion screw (2) is rotatably installed with a moving plate (11). The moving plate (11) is connected with a moving lead screw (12). The moving lead screw (12) is installed on the cleaning box (3). The moving plate (11) is slidably connected with a guide rod (13). The guide rod (13) is installed on the cleaning box (3). The moving lead screw (12) is connected with a rotary motor (14) through a chain wheel and chain structure. The rotary motor (14) is installed on the workbench.

5. The injection molding apparatus of claim 1 wherein, The cleaning box (3) is provided with a water storage tank (15) below. The water storage tank (15) is connected with the pipeline and the high-pressure water pipe (4) through the water pump.

6. The injection molding apparatus of claim 5 wherein, The top of the water storage tank (15) is provided with a filter screen (16).

7. The injection molding apparatus of claim 1 wherein, The sidewall of the cleaning box (3) is provided with a transparent box door (17).

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