Plastic particle feeding pretreatment device for injection molding machine

Abstract

The utility model relates to the technical field of injection molding machine pretreatment equipment, in particular to a plastic particle feeding pretreatment device for an injection molding machine, which sequentially comprises a feeding cylinder, a drying box and a filtering box from top to bottom, the top end of the feeding cylinder is respectively provided with a first feeding hole and a second feeding hole, and the inner side wall of the feeding cylinder is fixedly connected with a material guide plate; concave-convex blocks are evenly laid on the material guide plate. Plastic particle materials enter the feeding cylinder through the first feeding port and the second feeding port, under the action of a material guide plate on the inner side wall of the feeding cylinder and concave-convex blocks evenly laid on the material guide plate, the materials evenly slide down to the drying box along the material guide plate, the sliding friction force of the materials is increased through the arrangement of the material guide plate and the concave-convex blocks, material accumulation and blockage are prevented, and the drying efficiency is improved. Meanwhile, it is guaranteed that the materials are smoothly transited to the drying box, after the materials enter the drying box, the heating plates fixedly installed on the inner side wall conduct pre-drying treatment on the plastic particles, moisture in the raw materials can be efficiently removed, and then the dried materials enter the filtering box.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of injection molding machine pretreatment equipment especially a plastic particle feeding pretreatment device for injection molding machine. BACKGROUND

[0002] Plastic is a high molecular compound polymerized by monomer as raw material through polyaddition or polycondensation reaction, commonly known as plastic or resin, which can freely change composition and shape style. The injection molding machine is also known as injection molding machine or injection machine. It is the main molding equipment for making various shape plastic products by using thermoplastic or thermosetting plastic. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and make it fill the mold cavity. Plastic particles need to be pretreated before processing to improve product quality.

[0003] The plastic particle raw material contains moisture, which can cause instability of the plastic melt during injection molding, thereby affecting the molding quality of the product. However, the existing part of the injection molding machine feeding device does not have a drying device, which cannot effectively remove the moisture in the raw material. In addition, during feeding, the size of the plastic particles is inconsistent, which may cause blockage during pretreatment, thereby affecting the feeding smoothness. INVENTION CONTENTS

[0004] The utility model aims at at least solves one of prior art technical problems, the purpose of the utility model lies in providing a kind of plastic particle feeding pretreatment device for injection molding machine, for solving the problems raised in the above background art.

[0005] To solve the above problems, the utility model provides a kind of plastic particle feeding pretreatment device for injection molding machine, which includes feeding cylinder, drying box and filter box from top to bottom. The top end of the feeding cylinder is respectively provided with first feeding port and second feeding port. The inner side wall of the feeding cylinder is fixedly connected with guide plate. The guide plate is uniformly paved with concave-convex blocks. The inner side wall of the drying box is fixedly installed with heating plate. The middle and lower end of the filter box is fixedly connected with support frame. The center of the support frame is fixedly connected with filter disc. The upper surface of the filter disc is embeddedly fixed with filter screen. The center of the filter disc is installed with servo motor. The output end of the servo motor is provided with shovel. The inner side wall of the shovel is provided with discharge port. The upper edge of the filter disc is provided with shell. The inner side wall of the shell is adhered with adsorption sponge. The bottom of the side of the filter box is provided with discharge port.

[0006] The plastic particle feeding pretreatment device for injection molding machine provided by the utility model also has the following technical features:

[0007] Further, the diameter of the filter disc is matched with the diameter of the bottom of the drying box, and the top of the shell is connected with the outlet of the bottom of the drying box.

[0008] Further, positioning holes are formed on the two sides of the filter disc, positioning pins are penetrated through the bottom of the shell, and the shell is fixed with the positioning holes on the two sides of the filter disc through the positioning pins.

[0009] Further, the spacing plate is fixed between the first feeding port and the second feeding port.

[0010] Further, the feeding cylinder, the drying box and the filter box are fixed in sequence and vertically, the bottom of the feeding cylinder is communicated with the drying box, and the bottom of the drying box is communicated with the filter box.

[0011] Further, the servo motor is connected with the shovel through a speed reducer, and the shovel is in a semicircular shape.

[0012] Further, the filter box is hinged with an inspection door on the side.

[0013] Further, the filter box is fixedly connected with a support at the bottom.

[0014] The utility model has the advantages that first, the plastic particle material enters the feeding cylinder through the first feeding port and the second feeding port, under the action of the guide plate on the inner side wall of the feeding cylinder and the concave-convex blocks uniformly arranged thereon, the material uniformly slides to the drying box along the guide plate, the setting of the guide plate and the concave-convex blocks increases the sliding friction of the material, prevents the material from piling up and blocking, and ensures the smooth transition of the material to the drying box, after entering the drying box, the heating plate fixedly installed on the inner side wall pre-dries the plastic particles, can efficiently remove the moisture in the raw material, and the dried material then enters the filter box, in the filter box, the material first passes through the filter screen on the filter disc for screening, meanwhile, the servo motor installed at the center of the filter disc drives the rotation of the shovel, the shovel is in a semicircular shape, can flatten the material and scatter the caked raw material, prevents the material from piling up, the piled material is uniformly dispersed through the discharge port in the inner side of the shovel, further improves the screening efficiency, in addition, the adsorption sponge is adhered to the inner side wall of the shell above the filter disc, can effectively adsorb the peculiar smell and volatile organic compounds in the raw material, further optimizes the quality of the material, finally, the material screened, dried and purified is discharged through the discharge port at the bottom of the side of the filter box, and enters the injection molding machine for subsequent processing. BRIEF DESCRIPTION OF DRAWINGS

[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0016] Figure 1 Fig. 1 is a structural schematic view of a feeding cylinder in the present application;

[0017] Figure 2 Fig. 2 is a sectional structural schematic view of a drying box in the present application;

[0018] Figure 3 Fig. 3 is a structural schematic view of a supporting frame in the present application;

[0019] Figure 4 Fig. 4 is a structural schematic view of a shovel in the present application.

[0020] Mark 1-feeding cylinder, 111-first feeding port, 122-second feeding port, 101-separation plate, 2-drying box, 3-filtering box, 311-inspection door, 31-support, 301-discharge port, 4-guiding plate, 41-bump block, 5-heating plate, 6-supporting frame, 7-filtering disc, 71-positioning hole, 701-filtering screen, 8-servo motor, 9-shovel, 10-discharge port, 11-outer shell, 110-positioning pin, 12-absorbing sponge. DETAILED DESCRIPTION

[0021] The present application will be described in detail below with reference to the drawings and in combination with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0022] As Figures 1 to 3In one embodiment of the plastic particle feeding pretreatment device for injection molding machines of this utility model, the device comprises, from top to bottom, a feeding cylinder 1, a drying chamber 2, and a filter chamber 3. The feeding cylinder 1, the drying chamber 2, and the filter chamber 3 are vertically stacked and fixed in sequence. The bottom of the feeding cylinder 1 is connected to the drying chamber 2, and the bottom of the drying chamber 2 is connected to the filter chamber 3. The top of the feeding cylinder 1 is respectively provided with a first feeding port 111 and a second feeding port 122. The feeding cylinder 1 is located at the first feeding port 111. A partition plate 101 is fixed between the second feed inlet 122 and the feed cylinder 1. A guide plate 4 is fixedly connected to the inner wall of the feed cylinder 1. The guide plate 4 is evenly covered with protrusions and depressions 41. A heating plate 5 is fixedly installed on the inner wall of the drying chamber 2. A support frame 6 is fixedly connected to the lower middle end of the filter chamber 3. A filter disc 7 is fixedly connected to the center of the support frame 6. A filter screen 701 is embedded and fixed on the upper surface of the filter disc 7. A servo motor 8 is installed at the center of the filter disc 7. A bucket 9 is provided at the output end of the servo motor 8. The servo motor 8 is connected to the bucket through a reducer. The bucket 9 is semi-circular in shape, with a discharge port 10 on its inner side wall. A housing 11 is provided along the upper edge of the filter disc 7, and an absorbent sponge 12 is adhered to the inner side wall of the housing 11. The diameter of the filter disc 7 matches the diameter of the bottom of the drying chamber 2. The top of the housing 11 connects to the outlet at the bottom of the drying chamber 2. A discharge port 301 is provided at the bottom of the side of the filter chamber 3, and the bottom of the filter chamber 3 is inclined towards the discharge port 301. In this invention, two feed ports are respectively provided at the top of the feed cylinder 1 for... Multi-channel feeding is achieved. The partition plate 101 is located between the first feed port 111 and the second feed port 122 to separate the feeding channels, ensuring that the material enters the feed cylinder 1 evenly and avoiding material accumulation and blockage. The guide plate 4 is fixedly connected to the inner wall of the feed cylinder 1. The guide plate 4 is evenly covered with bumps 41 to increase the sliding friction of the material and prevent the material from accumulating or blocking during the feeding process. At the same time, it guides the material to slide smoothly into the drying box 2. The inner wall of the drying box 2 is equipped with a heating plate 5 for pre-drying the plastic granules. Heating plate 5 is heated by electric heating wire and its surface is covered with heat-insulating ceramic coating, which can efficiently remove moisture from raw materials while reducing heat loss and ensuring uniform drying effect. The middle and lower end of filter box 3 is fixedly connected to support frame 6 to support filter disc 7. Filter screen 701 is embedded and fixed on the upper surface of filter disc 7 for screening plastic granules and screening out larger materials. Servo motor 8 and bucket 9 are installed on filter disc 7. Servo motor 8 drives bucket 9 to rotate around filter disc 7 to flatten and break up clumps of material. The material is evenly distributed through discharge port 10 on bucket 9 to prevent accumulation and improve screening efficiency. Filter disc 7 is provided with outer shell 11 on the upper edge, and adsorption sponge 12 is adhered to its inner side wall.The adsorption sponge uses activated carbon fiber material to adsorb odors and volatile organic compounds in the material, further optimizing the material quality. The bottom of the filter box 3 has a discharge port 301 for discharging the treated material. The bottom of the filter box is inclined towards the discharge port to facilitate smooth material discharge.

[0023] In one embodiment of this application, preferably, positioning holes 71 are provided on both sides of the filter disc 7, and positioning pins 110 penetrate through both sides of the bottom of the outer shell 11. The outer shell 11 is fixed to the positioning holes 71 on both sides of the filter disc 7 by the positioning pins 110. In this utility model, the connection between the outer shell 11 and the filter disc 7 is made more secure by the cooperation of the positioning pins 110 and the positioning holes 71, avoiding loosening caused by vibration or external force, and ensuring the stability of the device during operation.

[0024] In one embodiment of this application, preferably, an inspection door 311 is hinged to the side of the filter box 3, and a bracket 31 is fixedly connected to the bottom of the filter box 3. In this utility model, the inspection door 311 is connected to the side of the filter box 3 by a hinge. The inspection door 311 can be opened and closed easily to ensure that the operator can easily enter the interior of the filter box. The bracket 31 is used to support the entire device to ensure its stability during operation.

[0025] In use, plastic granules enter the feeding cylinder 1 through the first feed port 111 and the second feed port 122, are evenly distributed in the channels separated by the partition plate 101, and slide down the guide plate 4 and the concave and convex blocks 41 on the inner side wall to the drying box 2. The heating plate 5 in the drying box pre-dries the material to remove moisture and ensure uniform drying effect. The dried material enters the filter box 3 and is screened by the filter screen 701 on the filter plate 7 to remove impurities and larger particles. At the same time, the servo motor 8 drives the bucket 9 to rotate, flatten the material, break up clumps, and evenly disperse it through the discharge port 10 to prevent material accumulation and improve screening efficiency. The adsorption sponge 12 in the outer shell 11 further adsorbs odors and volatile organic compounds in the material. Finally, the processed material is discharged through the discharge port 301 and enters the injection molding machine for subsequent processing.

[0026] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pretreatment device for feeding plastic particles into an injection molding machine, characterized in that, The structure consists of a feed cylinder (1), a drying chamber (2), and a filter chamber (3) arranged from top to bottom. The top of the feed cylinder (1) has a first feed port (111) and a second feed port (122). A guide plate (4) is fixedly connected to the inner wall of the feed cylinder (1). The guide plate (4) is evenly covered with protrusions and dents (41). A heating plate (5) is fixedly installed on the inner wall of the drying chamber (2). A support frame (6) is fixedly connected to the lower middle part of the filter chamber (3). The center of the support frame (6) is fixedly... A filter disc (7) is fixedly connected, and a filter screen (701) is embedded and fixed on the upper surface of the filter disc (7). A servo motor (8) is installed at the center of the filter disc (7). A bucket (9) is provided at the output end of the servo motor (8). A discharge port (10) is provided on the inner side wall of the bucket (9). A shell (11) is provided on the upper edge of the filter disc (7). An adsorbent sponge (12) is adhered to the inner side wall of the shell (11). A discharge port (301) is provided at the bottom of the side of the filter box (3).

2. The plastic particle pretreatment device for injection molding machines according to claim 1, characterized in that, The diameter of the filter disc (7) is adapted to the diameter of the bottom of the drying box (2), and the top of the outer shell (11) is connected to the outlet at the bottom of the drying box (2).

3. The plastic particle pretreatment device for injection molding machines according to claim 1, characterized in that, The filter disc (7) has positioning holes (71) on both sides, and positioning pins (110) pass through both sides of the bottom of the outer shell (11). The outer shell (11) is fixed to the positioning holes (71) on both sides of the filter disc (7) by the positioning pins (110).

4. The plastic particle pretreatment device for injection molding machines according to claim 1, characterized in that, The feed cylinder (1) is located between the first feed port (111) and the second feed port (122) with a fixed partition plate (101).

5. The plastic particle pretreatment device for injection molding machines according to claim 1, characterized in that, The feed cylinder (1), drying box (2) and filter box (3) are vertically stacked and fixed in sequence. The bottom of the feed cylinder (1) is connected to the drying box (2), and the bottom of the drying box (2) is connected to the filter box (3).

6. The plastic particle pretreatment device for injection molding machines according to claim 1, characterized in that, The servo motor (8) is connected to the bucket (9) via a reducer, and the bucket (9) is semi-circular in shape.

7. The plastic particle pretreatment device for injection molding machines according to claim 1, characterized in that, The filter box (3) has an inspection door (311) hinged to its side.

8. The plastic particle pretreatment device for injection molding machines according to claim 1, characterized in that, The bottom of the filter box (3) is fixedly connected to a bracket (31).

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