An antistatic plastic particle injection molding machine

Abstract

This utility model provides an antistatic plastic particle injection molding machine, including an injection molding machine body, the injection molding machine body including a shell, an injection cylinder disposed inside the shell, a connecting pipe connected to the top of the injection cylinder, the connecting pipe passing through the top of the shell and extending to the outside, a feed hopper connected to the top of the connecting pipe, a fixed mold fixedly connected to the left side of the shell, a moving mold disposed to the left side of the fixed mold; and an antistatic mechanism, the antistatic mechanism including an additive box fixedly connected to the top of the shell, a liquid pump disposed inside the additive box, and liquid delivery pipes connected to the output ends on both the front and rear sides of the liquid pump. By setting up the antistatic mechanism, an antistatic agent can be sprayed onto the plastic particles when they enter the feed hopper, so that a conductive layer or a moisture-absorbing layer is formed on the particle surface, reducing the surface resistance.

Description

Technical Field

[0001] This utility model relates to an antistatic plastic particle injection molding machine, belonging to the field of plastic particle technology. Background Technology

[0002] Plastic granules refer to granular plastics, which are generally classified into more than 200 types and further subdivided into thousands of types. Common plastic granules include general-purpose plastics, engineering plastics, and specialty plastics. General-purpose plastics include polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyester, and polyurethane. Engineering plastics include nylon, polytetrafluoroethylene, polyoxymethylene, and polycarbonate. Specialty plastics include thermosetting plastics and functional polymer plastics, such as artificial kidneys.

[0003] Chinese patent (publication number CN203125849U) discloses an injection molding machine with antistatic function, including a conveyor, a product feeding robot, and a conductive track. The conductive track is mounted on the conveyor and connected to the ground; the product feeding robot is located above the conveyor. This invention adds a conductive track, which can effectively conduct away static electricity carried by plastic products, improving the product yield.

[0004] The aforementioned patents have shortcomings in terms of antistatic properties. They rely solely on simple grounding measures to reduce static electricity, but this method is only effective for the large amounts of static electricity generated during the complex injection molding process. Furthermore, it has poor adaptability to different stages of the injection molding process and cannot fundamentally and effectively solve the static electricity problem in the injection molding process.

[0005] To address this, an antistatic plastic particle injection molding machine is proposed. Utility Model Content

[0006] In view of this, the present invention provides an antistatic plastic particle injection molding machine to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0007] The technical solution of this utility model is achieved as follows: an antistatic plastic particle injection molding machine, comprising:

[0008] The injection molding machine body includes an outer shell, an injection cylinder is provided inside the outer shell, a connecting pipe is connected to the top of the injection cylinder, and the connecting pipe passes through the top of the outer shell and extends to the outside. A feed hopper is connected to the top of the connecting pipe. A fixed mold is fixedly connected to the left side of the outer shell, and a moving mold is provided to the left side of the fixed mold.

[0009] An antistatic mechanism is provided, comprising an additive box fixedly connected to the top of the outer shell. A liquid pump is installed inside the additive box, and the output ends of the liquid pump on both the front and rear sides are connected to a liquid delivery pipe. An atomizing nozzle is connected to the inner side of the liquid delivery pipe and is located above the feed hopper.

[0010] More preferably, it also includes an antistatic component, the antistatic component including a first ion generator, and there are multiple first ion generators, which are respectively fixedly connected to the inner wall of the connecting tube.

[0011] More preferably, the antistatic component further includes an L-shaped plate, which is fixedly connected to the top of the fixed mold, and a second ion generator is fixedly connected to the inner side of the L-shaped plate.

[0012] More preferably, a conductive coil is wound around the left side of the outer surface of the injection molding cylinder, and one end of the conductive coil passes through the back side of the outer shell and is grounded.

[0013] More preferably, a controller is fixedly connected to the front side of the housing, and the output end of the controller is electrically connected to the input end of the first ion generator, the second ion generator, and the conductive coil.

[0014] More preferably, a conductive connecting piece is fixedly connected to the bottom of the fixed mold, and a grounding device is fixedly connected to the bottom of the conductive connecting piece, and the grounding device is grounded.

[0015] More preferably, the inner cavity of the connecting tube is fixedly connected to an isolation mesh by a fixing block, and the outer wall of the isolation mesh is in contact with the inner side of the first ion generator.

[0016] More preferably, an electrostatic shield is fixedly connected to the right side of the injection molding barrel, and the electrostatic shield is located outside the key electronic control components of the injection molding barrel.

[0017] The present invention has the following advantages due to the adoption of the above technical solution:

[0018] I. By setting an antistatic mechanism, this utility model can spray an antistatic agent onto plastic particles when they enter the feed hopper, so that a conductive layer or a moisture-absorbing layer is formed on the particle surface, thereby reducing the surface resistance. It should be noted that the antistatic agent can be a quaternary ammonium salt polymer.

[0019] II. This utility model, by setting up antistatic components and implementing static elimination measures at three key locations—the connecting pipe, the injection cylinder, and the fixed mold—achieves comprehensive static elimination of plastic particles throughout the entire process from feeding and molten injection to molding. This greatly improves the antistatic effect, effectively reduces product surface defects, and increases the product qualification rate.

[0020] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the front view of the main body structure of this utility model;

[0023] Figure 2 This is a structural diagram of the outer shell of this utility model in the disassembled state;

[0024] Figure 3 This is a cross-sectional view of the additive box of this utility model;

[0025] Figure 4 This is a top view of the connecting pipe structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the left-side structure of the fixed mold of this utility model;

[0027] Figure 6 This is a bottom view of the fixed mold structure of this utility model.

[0028] Reference numerals: 100, Injection molding machine body; 101, Outer shell; 102, Injection barrel; 103, Connecting pipe; 104, Feed hopper; 105, Fixed mold; 106, Moving mold; 107, Isolation net; 108, Static shielding cover; 200, Antistatic mechanism; 201, Additive tank; 202, Liquid pump; 203, Infusion pipe; 204, Atomizing nozzle; 300, Antistatic assembly; 301, First ion generator; 302, L-shaped plate; 303, Second ion generator; 304, Conductive coil; 305, Controller; 306, Conductive connecting piece; 307, Grounding device. Detailed Implementation

[0029] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0030] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figure 1-3 As shown, this utility model embodiment provides an antistatic plastic particle injection molding machine, comprising:

[0033] The injection molding machine body 100 includes a housing 101, an injection cylinder 102 is provided inside the housing 101, a connecting pipe 103 is connected to the top of the injection cylinder 102, and the connecting pipe 103 passes through the top of the housing 101 and extends to the outside. The top of the connecting pipe 103 is connected to a feed hopper 104. A fixed mold 105 is fixedly connected to the left side of the housing 101, and a moving mold 106 is provided on the left side of the fixed mold 105.

[0034] The antistatic mechanism 200 includes an additive box 201, which is fixedly connected to the top of the outer shell 101. The additive box 201 is equipped with a liquid pump 202. The output ends of the front and rear sides of the liquid pump 202 are connected to the infusion pipes 203. The inner side of the infusion pipes 203 is connected to the atomizing nozzle 204, and the atomizing nozzle 204 is located above the feed hopper 104.

[0035] By setting an antistatic mechanism 200, an antistatic agent can be sprayed onto the plastic particles when they enter the feed hopper 104, so that a conductive layer or a moisture-absorbing layer is formed on the particle surface, thereby reducing the surface resistance. It should be noted that the antistatic agent can be a quaternary ammonium salt polymer.

[0036] Example 2

[0037] like Figure 2-6As shown, in one embodiment, an antistatic component 300 is also included. The antistatic component 300 includes a first ion generator 301, and there are multiple first ion generators 301, which are respectively fixedly connected to the inner wall of the connecting pipe 103. The antistatic component 300 also includes an L-shaped plate 302, which is fixedly connected to the top of the fixed mold 105. A second ion generator 303 is fixedly connected to the inner side of the L-shaped plate 302. A conductive coil 304 is wound on the left side of the outer surface of the injection cylinder 102, and one end of the conductive coil 304 passes through the back side of the outer shell 101 and is grounded. A controller 305 is fixedly connected to the front side of the outer shell 101, and the output end of the controller 305 is electrically connected to the input end of the first ion generator 301, the second ion generator 303, and the conductive coil 304. A conductive connecting piece 306 is fixedly connected to the bottom of the fixed mold 105, and a grounding device 307 is fixedly connected to the bottom of the conductive connecting piece 306, and the grounding device 307 is grounded.

[0038] By setting up the antistatic component 300, and by setting up static elimination measures at three key locations—connecting pipe 103, injection cylinder 102, and fixed mold 105—static electricity is eliminated in all aspects throughout the entire process of plastic particles from feeding, melting injection to molding. This greatly improves the antistatic effect, effectively reduces product surface defects, and increases the product qualification rate.

[0039] Example 3

[0040] like Figure 2 and Figure 4 As shown, in one embodiment, the inner cavity of the connecting tube 103 is fixedly connected to an isolation net 107 by a fixing block, and the outer wall of the isolation net 107 is in contact with the inner side of the first ion generator 301. An electrostatic shield 108 is fixedly connected to the right side of the injection molding cylinder 102, and the electrostatic shield 108 is located outside the key electronic control components of the injection molding cylinder 102.

[0041] By setting up the isolation net 107, the first ion generator 301 can be protected when plastic particles enter the interior of the connecting pipe 103, preventing plastic particles from entering the interior of the first ion generator 301. By setting up the electrostatic shield 108, the internal electronic components of the equipment can be protected from electrostatic interference, thereby improving the stability and reliability of the equipment operation.

[0042] In operation, this invention works as follows: First, when plastic particles need to be injection molded, the plastic particles are first put into the feed hopper 104. At the same time as the particles are put in, the pump 202 is started. The antistatic agent is drawn into the infusion pipe 203 through the input end of the pump 202 and sprayed out through the atomizing nozzle 204, evenly spraying it on the outer surface of the plastic particles. When the plastic particles fall into the connecting pipe 103, the first ion generator 301 sprays ion wind with positive and negative charges onto the plastic particles to neutralize the static electricity generated by the plastic particles during the feeding process. Then, the plastic particles enter the injection cylinder 102 for melting. During the melting process, the conductive coil 304 is grounded to conduct away the static electricity accumulated on the injection cylinder 102. After melting, the particles are extruded and molded through the fixed mold 105 and the moving mold 106. During this process, the conductive coil 304 eliminates the static electricity generated during the product molding process. The fixed mold 105 is connected to the grounding device 307 through the conductive connecting piece 306 to conduct the static electricity on the fixed mold 105 to the ground in a timely manner.

[0043] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An anti-static plastic pellet injection molding machine characterized by, include: The injection molding machine body (100) includes an outer shell (101), an injection cylinder (102) is provided inside the outer shell (101), a connecting pipe (103) is connected to the top of the injection cylinder (102), and the connecting pipe (103) passes through the top of the outer shell (101) and extends to the outside. The top of the connecting pipe (103) is connected to a feed hopper (104). A fixed mold (105) is fixedly connected to the left side of the outer shell (101), and a moving mold (106) is provided on the left side of the fixed mold (105). An antistatic mechanism (200) is provided, which includes an additive box (201) fixedly connected to the top of the outer shell (101). A liquid pump (202) is provided inside the additive box (201). The output ends of the front and rear sides of the liquid pump (202) are connected to a liquid delivery pipe (203). An atomizing nozzle (204) is connected to the inner side of the liquid delivery pipe (203), and the atomizing nozzle (204) is located above the feed hopper (104).

2. The anti-static plastic pellet injection molding machine according to claim 1, wherein: It also includes an antistatic component (300), which includes a first ion generator (301), and there are multiple first ion generators (301), which are respectively fixedly connected to the inner wall of the connecting tube (103).

3. The anti-static plastic pellet injection molding machine of claim 2, wherein: The antistatic component (300) also includes an L-shaped plate (302), which is fixedly connected to the top of the fixed mold (105), and a second ion generator (303) is fixedly connected to the inner side of the L-shaped plate (302).

4. The anti-static plastic pellet injection molding machine of claim 3, wherein: A conductive coil (304) is wound around the left side of the outer surface of the injection molding cylinder (102), and one end of the conductive coil (304) passes through the back side of the outer shell (101) and is grounded.

5. The anti-static plastic pellet injection molding machine of claim 4, wherein: A controller (305) is fixedly connected to the front side of the housing (101), and the output end of the controller (305) is electrically connected to the input end of the first ion generator (301), the second ion generator (303), and the conductive coil (304).

6. The anti-static plastic pellet injection molding machine of claim 1, wherein: The bottom of the fixed mold (105) is fixedly connected to a conductive connecting piece (306), and the bottom of the conductive connecting piece (306) is fixedly connected to a grounding device (307), and the grounding device (307) is grounded.

7. The anti-static plastic pellet injection molding machine of claim 3, wherein: The inner cavity of the connecting tube (103) is fixedly connected to an isolation net (107) by a fixing block, and the outer wall of the isolation net (107) is in contact with the inner side of the first ion generator (301).

8. The antistatic plastic particle injection molding machine according to claim 1, characterized in that: An electrostatic shield (108) is fixedly connected to the right side of the injection molding cylinder (102), and the electrostatic shield (108) is located outside the key electronic control components of the injection molding cylinder (102).

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