Injection molding nozzle easy to replace and used for plastic comb production

Abstract

The utility model discloses an injection molding nozzle easy to replace for plastic comb production. The injection molding nozzle comprises a threaded column, a fixing column is arranged at the bottom end of the threaded column, a fixing structure is arranged at the top end of a fixing disc, an injection molding pipe is arranged at the top end of the fixing structure, and an injection molding opening is formed in the top end of the injection molding pipe. The connecting column is installed at the top end of the fixing disc, the outer diameter of the connecting column is smaller than the inner diameter of the injection molding pipe, and the spiral spring is arranged on the periphery of the connecting column, so that the spring has elasticity and can rebound and fix the mounting ring connected to the top end, and the mounting ring can move on the connecting column; and the limiting columns can be extruded through the elasticity of the springs to make contact with the injection molding pipe so as to fix the injection molding pipe, the injection molding pipe can be fixed more firmly through the arranged limiting columns, and deviation cannot be easily generated, so that the purposes that the device is conveniently fixed, and the sealing effect is enhanced are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic comb processing, in particular to an injection molding nozzle for producing plastic combs which is easy to replace. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it eject and fill the mold cavity. The injection nozzle is indispensable when using the injection molding machine.

[0003] To this end, the patent specification with publication number CN219563953U discloses an injection molding machine injection nozzle, which relates to the technical field of injection molding nozzles, including an injection molding nozzle body, a connecting spiral tube fixedly connected to the injection molding nozzle body and the top, and a fixing nut fixedly sleeved on the upper part of the injection molding nozzle body, an internal threaded tube is vertically fixedly connected to the bottom outer side of the fixing nut, a protective sleeve is sleeved on the injection molding nozzle body, an internal vertical insulation tube of the protective sleeve, and a heating wire is provided in the inner ring of the insulation tube; the utility model facilitates the heating operation of the injection molding nozzle body after use through the cooperation of the protective sleeve, the insulation tube and the heating wire, and avoids the cooling and fixing of the residual injection plastic retained in the injection molding nozzle body. At the same time, through the arrangement of the insulation cotton layer and the insulation tube, the protective sleeve is prevented from overheating when the heating wire heats the injection molding nozzle body, thereby avoiding the protective sleeve from causing burns to the operator, thereby improving the safety protection effect of the structure when in use.

[0004] The above-mentioned prior art mentions that by installing a heating wire inside the device, the injection nozzle body can be heated by the heating wire to soften the injection raw material, which will not easily solidify and cause clogging of the nozzle. However, the device cannot be installed more firmly when in use. Utility Model Content

[0005] The utility model aims to provide an injection molding nozzle for producing plastic combs which is easy to replace, so as to solve the defect that the existing device is inconvenient to install and the device can be installed more firmly.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: an easily replaceable injection molding nozzle for producing plastic combs, comprising a threaded column, a fixing column provided at the bottom end of the threaded column, a flange mounted on the bottom end of the fixing column, a through hole provided at the top end of the flange, an internal thread provided at one end of the fixing column, and a sealing structure mounted at one end of the fixing column;

[0007] The sealing structure includes a fixing ring, a sealing ring and rubber particles. The fixing ring is installed at one end inside the fixing column. The sealing ring is installed at the top of the fixing ring. The top of the sealing ring is provided with rubber particles.

[0008] A fixing disk is fixed to the top of the threaded column, a fixing structure is provided at the top of the fixing disk, an injection tube is provided at the top of the fixing structure, and an injection port is provided at the top of the injection tube.

[0009] When in use, first, a connecting column is installed on the top of the fixed disk. The outer diameter of the connecting column is smaller than the inner diameter of the injection molded tube. A spring is arranged on the periphery of the connecting column. The shape of the spring is spiral, which makes it elastic and can rebound and fix the mounting ring connected to the top. The position of the mounting ring can be moved on the connecting column, so that it can squeeze the limiting column to contact the injection molded tube through the elasticity of the spring to fix the injection molded tube, and the setting of the limiting column can make it more firmly fixed and will not easily deviate.

[0010] Preferably, the rubber particles are arranged on the top of the sealing ring, and the rubber particles are arranged at equal intervals about the central axis of the sealing ring, which can achieve a better sealing effect.

[0011] Preferably, one end of the threaded column is provided with an external thread, and the threaded column and the internal thread form a threaded connection, which enables the device to be fixedly connected and quickly replaced.

[0012] Preferably, the fixing structure includes a connecting column, a spring, a mounting ring and a limiting column. The connecting column is installed at the top of the fixed disk. A spring is provided at one end of the connecting column. A mounting ring is fixed at the top of the spring. A limiting column is provided on one side of the mounting ring, which can make the device installed more firmly.

[0013] Preferably, the spring is in a spiral shape, and the spring and the mounting ring form an elastic connection, which can limit the mounting ring.

[0014] Preferably, the limiting posts are installed on one side of the mounting ring, and the limiting posts are symmetrically distributed about the central axis of the mounting ring, which can achieve a better fixing effect.

[0015] Preferably, the injection port is installed at the top end of the injection tube, and the shape of the injection port is a hemisphere, which can achieve a better injection molding effect.

[0016] The utility model provides an injection molding nozzle for producing plastic combs that is easy to replace. The advantages are: a connecting column is installed on the top of the fixing plate, the outer diameter of the connecting column is smaller than the inner diameter of the injection molding tube, a spring is provided on the periphery of the connecting column, and the spring is spirally shaped, so that it has elasticity and can rebound and fix the mounting ring connected to the top. The position of the mounting ring can be moved on the connecting column, so that the elasticity of the spring can squeeze the limiting column to contact the injection molding tube to fix the injection molding tube, and the setting of the limiting column can make the fixing more firm and will not easily deviate, thereby achieving the purpose of facilitating the fixation of the device and strengthening the sealing effect.

[0017] By installing a fixing ring device in the groove provided at the top end of the fixing column, the fixing ring device can be quickly disassembled and replaced through the internal thread provided inside the fixing column and the external thread provided at one end of the threaded column. Therefore, water leakage is prone to occur at this connection. By installing a sealing ring and rubber particles at the top end of the fixing ring, when the user installs it, the sealing ring and the rubber particles can seal the connection, which can prevent the injection molded material from leaking, thereby achieving the purpose of facilitating the leakage prevention of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0020] Figure 3 For the utility model Figure 1 A schematic diagram of the enlarged structure of the local section at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the spring of the utility model;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the sealing structure of the present invention.

[0023] Explanation of the reference numerals in the figure: 1. Flange; 2. Fixing column; 3. Sealing structure; 301. Fixing ring; 302. Sealing ring; 303. Rubber particles; 4. Internal thread; 5. Threaded column; 6. Fixing plate; 7. Fixing structure; 701. Connecting column; 702. Spring; 703. Mounting ring; 704. Limiting column; 8. Injection tube; 9. Injection port; 10. Through hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 5 The utility model provides an embodiment: an easily replaceable injection molding nozzle for producing plastic combs, comprising a threaded column 5, a fixing column 2 is provided at the bottom end of the threaded column 5, an external thread is provided at one end of the threaded column 5, and the threaded column 5 and the internal thread 4 form a threaded connection.

[0026] A flange 1 is installed at the bottom end of the fixing column 2, a through hole 10 is provided at the top end of the flange 1, an internal thread 4 is provided at one end inside the fixing column 2, and a sealing structure 3 is installed at one end inside the fixing column 2.

[0027] Reference Figure 1-2 and Figure 5 As shown, the sealing structure 3 includes a fixing ring 301, a sealing ring 302 and rubber particles 303. The fixing ring 301 is installed at one end inside the fixing column 2. The sealing ring 302 is installed on the top of the fixing ring 301. The top of the sealing ring 302 is provided with rubber particles 303. The rubber particles 303 are arranged at the top of the sealing ring 302, and the rubber particles 303 are arranged at equal intervals about the central axis of the sealing ring 302.

[0028] By installing a fixing ring 301 in a groove provided at the top end of the fixing column 2, the device can be quickly disassembled and replaced through the internal thread 4 provided inside the fixing column 2 and the external thread provided at one end of the threaded column 5. Therefore, water leakage is prone to occur at this connection. By installing a sealing ring 302 and rubber particles 303 at the top end of the fixing ring 301, when the user installs it, the sealing ring 302 and the rubber particles 303 can achieve a sealing effect at the connection, which can prevent the injection molded material from leaking.

[0029] Reference Figure 1-4 As shown, a fixed disk 6 is fixed to the top of the threaded column 5, and a fixed structure 7 is provided at the top of the fixed disk 6. The fixed structure 7 includes a connecting column 701, a spring 702, a mounting ring 703 and a limiting column 704. The connecting column 701 is installed at the top of the fixed disk 6, and a spring 702 is provided at one end of the connecting column 701. The shape of the spring 702 is spiral, and the spring 702 and the mounting ring 703 form an elastic connection.

[0030] A mounting ring 703 is fixed to the top of the spring 702 , and a limiting post 704 is provided on one side of the mounting ring 703 . The limiting post 704 is installed on one side of the mounting ring 703 and is symmetrically distributed about the central axis of the mounting ring 703 .

[0031] A connecting column 701 is installed on the top of the fixed disk 6, the outer diameter of the connecting column 701 is smaller than the inner diameter of the injection molding tube 8, and a spring 702 is arranged on the periphery of the connecting column 701. The shape of the spring 702 is spiral, which makes it elastic and can rebound and fix the mounting ring 703 connected to the top. The position of the mounting ring 703 can be moved on the connecting column 701, so that it can squeeze the limiting column 704 to contact the injection molding tube 8 through the elasticity of the spring 702 to fix the injection molding tube 8, and the setting of the limiting column 704 can make it fixed more firmly and will not easily deviate.

[0032] An injection molding tube 8 is provided at the top of the fixed structure 7 , and an injection molding port 9 is provided at the top of the injection molding tube 8 . The injection molding port 9 is installed at the top of the injection molding tube 8 , and the shape of the injection molding port 9 is a hemisphere.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An easily replaceable injection nozzle for producing plastic combs, comprising a threaded column (5); Its characteristics are: The bottom end of the threaded column (5) is provided with a fixing column (2), the bottom end of the fixing column (2) is installed with a flange (1), the top end of the flange (1) is provided with a through hole (10), one end inside the fixing column (2) is provided with an internal thread (4), and one end inside the fixing column (2) is installed with a sealing structure (3); The sealing structure (3) comprises a fixing ring (301), a sealing ring (302) and rubber particles (303); the fixing ring (301) is mounted on one end inside the fixing column (2); the sealing ring (302) is mounted on the top end of the fixing ring (301); and the rubber particles (303) are arranged on the top end of the sealing ring (302); A fixing plate (6) is fixed to the top of the threaded column (5), a fixing structure (7) is provided at the top of the fixing plate (6), an injection tube (8) is provided at the top of the fixing structure (7), and an injection port (9) is provided at the top of the injection tube (8).

2. The easily replaceable injection molding nozzle for producing plastic combs according to claim 1, characterized in that: The rubber particles (303) are arranged at the top of the sealing ring (302), and the rubber particles (303) are arranged at equal intervals about the central axis of the sealing ring (302).

3. The easily replaceable injection molding nozzle for producing plastic combs according to claim 1, characterized in that: One end of the threaded column (5) is provided with an external thread, and the threaded column (5) and the internal thread (4) form a threaded connection.

4. The easily replaceable injection molding nozzle for producing plastic combs according to claim 1, characterized in that: The fixing structure (7) comprises a connecting column (701), a spring (702), a mounting ring (703) and a limiting column (704); the connecting column (701) is mounted on the top of the fixing plate (6); a spring (702) is provided at one end of the connecting column (701); a mounting ring (703) is fixed at the top of the spring (702); and a limiting column (704) is provided on one side of the mounting ring (703).

5. The easily replaceable injection molding nozzle for producing plastic combs according to claim 4, characterized in that: The spring (702) is in a spiral shape, and the spring (702) and the mounting ring (703) form an elastic connection.

6. The easily replaceable injection molding nozzle for producing plastic combs according to claim 4, characterized in that: The limiting posts (704) are installed on one side of the mounting ring (703), and the limiting posts (704) are symmetrically distributed about the central axis of the mounting ring (703).

7. The easily replaceable injection molding nozzle for producing plastic combs according to claim 1, characterized in that: The injection port (9) is installed at the top end of the injection tube (8), and the shape of the injection port (9) is a hemisphere.

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