Polypropylene processing injection nozzle with anti-blocking function

Abstract

The utility model belongs to the technical field of processing injection nozzles, and particularly relates to a polypropylene processing injection nozzle with an anti-blocking function, which comprises a connecting pipe, an injection pipe is arranged below the connecting pipe, a connecting ring is rotatably sleeved on the injection pipe, the upper end of the connecting ring is fixedly connected with two rectangular rods which are symmetrically arranged left and right, and the upper end of the connecting ring is fixedly connected with a screw. The cylindrical surface of the connecting pipe is fixedly connected with two limiting blocks which are correspondingly arranged left and right, the two limiting blocks are each provided with a sliding opening, the two rectangular rods penetrate through the two sliding openings correspondingly and are slidably connected with the corresponding limiting blocks, and the upper ends of the two rectangular rods are both fixedly connected with check blocks; the two rectangular rods are each sleeved with a spring. The device is good in sealing performance, can filter impurities, can be opened, can clean the filter sheet without dismounting the filter sheet, is quick and simple to separate and mount, is very efficient, and greatly improves the processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of injection nozzle processing technology, and in particular to a polypropylene injection nozzle with anti-clogging function. Background Technology

[0002] Polypropylene is an important plastic material, belonging to the polyolefin plastics family. Plastic injection molding is a common manufacturing process widely used in the production of various plastic products, from electronic devices to automotive parts to everyday consumer goods. In this process, liquid plastic is injected into a mold under heat and pressure, then cools and solidifies within the mold, ultimately forming the desired part or product.

[0003] The injection nozzle is a crucial component in polypropylene processing, playing a key role, especially in plastic injection molding. To prevent clogging by impurities such as iron sheets and aluminum flakes in the raw materials, existing injection nozzles typically have a filter installed in the delivery pipe to filter these impurities. However, once the filter has filtered and blocked a certain amount of impurities, the delivery pipe and injection nozzle need to be disassembled to remove and clean the filter. After cleaning, they need to be reassembled, which is very cumbersome. Furthermore, the disassembly process involves many small and fragmented parts, which can easily lead to the loss of components, severely impacting processing efficiency.

[0004] Therefore, we propose a polypropylene processing injection nozzle with anti-clogging function to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a polypropylene processing injection nozzle with anti-clogging function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A polypropylene processing injection nozzle with anti-clogging function includes a connecting tube, an injection tube below the connecting tube, a connecting ring rotatably sleeved on the injection tube, two rectangular rods symmetrically arranged on the left and right sides fixedly connected to the upper end of the connecting ring, two limiting blocks correspondingly arranged on the left and right sides fixedly connected to the cylindrical surface of the connecting tube, each of the two limiting blocks having a sliding opening, and the two rectangular rods respectively passing through the two sliding openings and slidingly connected to the corresponding limiting blocks.

[0008] Preferably, each of the two rectangular rods has a stop block fixedly connected to its upper end, a spring is sleeved on each of the two rectangular rods, the lower end of each of the two springs is fixedly connected to a connecting ring, and the upper end of each of the two springs is fixedly connected to a corresponding limiting block.

[0009] Preferably, the upper end of the injection tube is fixedly connected to a first threaded tube, the inner wall of the connecting tube is threaded, the first threaded tube is threadedly connected to the connecting tube, and a first sealing ring is fixedly sleeved on the first threaded tube.

[0010] Preferably, a filter element is provided at the lower end of the first threaded tube.

[0011] Preferably, a rotating handle is fixedly sleeved on the injection tube, and an injection head is provided at the lower end of the injection tube.

[0012] Preferably, the upper end of the connecting pipe is fixedly connected to a second threaded pipe, and a second sealing ring is fixedly sleeved on the second threaded pipe.

[0013] Compared with existing technologies, the advantages of this device are:

[0014] 1. This device filters impurities from materials using filter plates, and a first sealing ring and a second sealing ring are installed at the connection to ensure the sealing of materials during conveying.

[0015] 2. This device can separate the connecting tube from the injection tube, exposing the filter element for cleaning. After cleaning, simply press the injection tube against the connecting tube and rotate the handle to re-tighten the first threaded tube and the connecting tube, and then continue the injection molding process. The separation and installation are quick, simple, and highly efficient, greatly improving processing efficiency.

[0016] In summary, this device has good sealing performance, can filter impurities, and can be opened to clean the filter without disassembling it. Separation and installation are quick and simple, and it is highly efficient, greatly improving processing efficiency. Attached Figure Description

[0017] Figure 1 A perspective view of a polypropylene processing injection nozzle with anti-clogging function proposed in this utility model;

[0018] Figure 2 This is a perspective view of a polypropylene processing injection nozzle with anti-clogging function in the open state, as proposed in this utility model.

[0019] Figure 3 This is a three-dimensional view showing the disassembled connecting tube and injection tube in a polypropylene processing injection nozzle with anti-clogging function proposed in this utility model.

[0020] In the diagram: 1 connecting tube, 2 injection tube, 3 connecting ring, 4 rectangular rod, 5 limiting block, 6 sliding port, 7 stop block, 8 spring, 9 rotating handle, 10 injection head, 11 first threaded tube, 12 first sealing ring, 13 filter plate, 14 second threaded tube, 15 second sealing ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-3 A polypropylene processing injection nozzle with anti-clogging function includes a connecting tube 1, an injection tube 2 below the connecting tube 1, a connecting ring 3 rotatably sleeved on the injection tube 2, two rectangular rods symmetrically arranged on the left and right sides fixedly connected to the upper end of the connecting ring 3, and two corresponding limiting blocks 5 fixedly connected to the cylindrical surface of the connecting tube 1. Each limiting block 5 has a sliding opening 6, and the two rectangular rods 4 pass through the two sliding openings 6 respectively and are slidably connected to the corresponding limiting blocks 5. Both the sliding opening 6 and the rectangular rods 4 are rectangular, and the sliding opening 6 serves to limit the movement of the rectangular rods 4.

[0023] The upper end of the injection tube 2 is fixedly connected to the first threaded tube 11. The inner wall of the connecting tube 1 is threaded. The first threaded tube 11 is threadedly connected to the connecting tube 1. The first sealing ring 12 is fixedly sleeved on the first threaded tube 11. The first sealing ring 12 is tightly fitted to the upper end of the connecting tube 1. The injection tube 2 is connected to the connecting tube 1 through the threaded connection of the first threaded tube 11 and the connecting tube 1. The injection tube 2 is fixedly sleeved with a rotating handle 9. By rotating the rotating handle 9, the injection tube 2 is rotated. The connecting ring 3 is fixed due to the limiting effect of the sliding port 6 on the rectangular rod 4. The rotation of the injection tube 2 drives the first threaded tube 11 to be screwed into the connecting tube 1 until the lower end of the connecting tube 1 is tightly fitted with the first sealing ring 12. At this time, the connecting ring 3 moves upward, thereby compressing the two springs 8 towards the two limiting blocks 5.

[0024] The lower end of the injection tube 2 is provided with an injection head 10, and the upper end of the connecting tube 1 is fixedly connected to a second threaded tube 14. A second sealing ring 15 is fixedly sleeved on the second threaded tube 14. The second threaded tube 14 is used to connect the connecting tube 1 to the material conveying tube, so that the material enters the injection tube 2 through the connecting tube 1 and then undergoes injection molding through the injection head 10. The lower end of the first threaded tube 11 is provided with a filter plate 13. The filter holes on the filter plate 13 filter and block impurities in the material, preventing impurities from clogging the injection head 10 and affecting the injection molding process. When the filter 13 has filtered and blocked a certain amount of impurities and needs to be cleaned, the handle 9 is reversed to rotate the injection tube 2, thereby unscrewing the first threaded tube 11 from the internal thread of the connecting tube 1. At this time, the connecting ring 3 moves downward under the elastic force of the two springs 8 until the two stops 7 abut against the corresponding limit blocks 5, thereby separating the connecting tube 1 from the injection tube 2 and exposing the filter 13 for cleaning. After cleaning, simply press the injection tube 2 against the connecting tube 1 and rotate the handle 9 to re-tighten the first threaded tube 11 and the connecting tube 1, and the injection molding process can continue.

[0025] When using this invention, the connecting pipe 1 is connected to the material conveying pipe through the second threaded pipe 14, so that the material enters the injection pipe 2 through the connecting pipe 1 and then undergoes injection molding through the injection head 10. The filter on the filter 13 filters and blocks impurities in the material, preventing impurities from clogging the injection head 10 and affecting the injection molding process. When the filter 13 has filtered and blocked a certain amount of impurities and needs to be cleaned, the rotating handle 9 is reversed to rotate the injection pipe 2, thereby unscrewing the first threaded pipe 11 from the inner thread of the connecting pipe 1. The two springs 8 separate the connecting pipe 1 from the injection pipe 2, exposing the filter 13 for cleaning. After cleaning, simply press the injection pipe 2 against the connecting pipe 1 and rotate the rotating handle 9 to re-tighten the first threaded pipe 11 and the connecting pipe 1, and the injection molding process can continue. This device filters impurities in the material through the filter 13, and the connection is provided with a first sealing ring 12 and a second sealing ring 15 to ensure the sealing of the material during the conveying process.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A polypropylene processing injection nozzle with anti-clogging function, comprising a connecting tube (1), characterized in that, Below the connecting tube (1) is an injection tube (2), and a connecting ring (3) is rotatably sleeved on the injection tube (2). The upper end of the connecting ring (3) is fixedly connected to two rectangular rods (4) arranged symmetrically on the left and right. The cylindrical surface of the connecting tube (1) is fixedly connected to two limiting blocks (5) arranged correspondingly on the left and right. Each of the two limiting blocks (5) has a sliding port (6). The two rectangular rods (4) pass through the two sliding ports (6) respectively and are slidably connected to the corresponding limiting blocks (5).

2. The polypropylene processing injection nozzle with anti-clogging function according to claim 1, characterized in that, Both rectangular rods (4) are fixedly connected to the upper ends of the two rectangular rods (4), and both rectangular rods (4) are fitted with springs (8). The lower ends of both springs (8) are fixedly connected to the connecting rings (3), and the upper ends of both springs (8) are fixedly connected to the corresponding limiting blocks (5).

3. The polypropylene processing injection nozzle with anti-clogging function according to claim 1, characterized in that, The upper end of the injection tube (2) is fixedly connected to a first threaded tube (11), the inner wall of the connecting tube (1) is provided with threads, the first threaded tube (11) is threadedly connected to the connecting tube (1), and a first sealing ring (12) is fixedly sleeved on the first threaded tube (11).

4. A polypropylene processing injection nozzle with anti-clogging function according to claim 3, characterized in that, The lower end of the first threaded tube (11) is provided with a filter (13).

5. A polypropylene processing injection nozzle with anti-clogging function according to claim 1, characterized in that, A rotating handle (9) is fixedly sleeved on the injection tube (2), and an injection head (10) is provided at the lower end of the injection tube (2).

6. A polypropylene processing injection nozzle with anti-clogging function according to claim 1, characterized in that, The upper end of the connecting pipe (1) is fixedly connected to a second threaded pipe (14). A second sealing ring (15) is fixedly sleeved on the second threaded pipe (14).

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