An extruder die structure for high flow nylon

Abstract

The utility model relates to processing mould technical field, concretely is a kind of extruder die head structure special for high flow nylon, including feed pipe, the feed pipe slidingly connected with connecting pipe, the connecting pipe bottom end is fixedly connected with extrusion head, the inside of extrusion head is provided with filter assembly, the inside of feed pipe is provided with mounting assembly, the mounting assembly includes two lugs slidingly connected in the inside of feed pipe, the lug surface is fixedly connected with push plate, the push plate one side is fixedly connected with tension spring, the tension spring one end is fixedly connected in the inside of feed pipe, in the utility model, the quick disassembly of feed pipe and connecting pipe is realized by mounting assembly, die head disassembly time is greatly shortened, production efficiency is improved, the cooperation of filter assembly and connecting assembly is achieved Filter assembly quick replacement, avoid die head overall disassembly, reduce raw material waste, ensure production continuity.

Description

Technical Field

[0001] This utility model relates to the field of processing mold technology, specifically to a die head structure for a high-flow nylon extruder. Background Technology

[0002] High-flow nylon, with its excellent processing fluidity, mechanical properties, and chemical stability, is widely used in various fields such as electronics, automotive manufacturing, and mechanical parts. In the industrial production of high-flow nylon products, extrusion molding is one of the core processing technologies, and the extruder die head, as a key component in molding, directly determines the dimensional accuracy, surface quality, and molding efficiency of the product.

[0003] To meet the extrusion molding requirements of high-flow nylon, various extruder die structures have emerged on the market. These dies typically consist of a feeding component, a forming channel, and a connecting structure. The feeding component is responsible for conveying the molten raw material into the die, the forming channel is designed according to the shape of the product to shape the raw material, and the connecting structure is used to fix the various components of the die and the die to the extruder body.

[0004] However, existing die structures for high-flow nylon extruders still have significant drawbacks in practical use. The feed tube and extrusion head of the die are connected by multiple sets of bolts. When it is necessary to clean the internal flow channels of the die, replace molding components, or repair faults, it is necessary to disassemble each bolt one by one with special tools such as wrenches, making the operation process cumbersome. In view of this, we propose a new die structure for high-flow nylon extruders. Utility Model Content

[0005] The purpose of this invention is to provide a die head structure for a high-flow nylon extruder, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A die structure for a high-flow nylon extruder includes a feed pipe, a connecting pipe slidably connected to the feed pipe, an extrusion head fixedly connected to the bottom end of the connecting pipe, a filter assembly inside the extrusion head, and an installation assembly inside the feed pipe. The installation assembly includes two protrusions slidably connected inside the feed pipe, a push plate fixedly connected to the surface of the protrusions, a tension spring fixedly connected to one side of the push plate, and one end of the tension spring fixedly connected inside the feed pipe.

[0008] Preferably, the filter assembly includes a sealing plate slidably connected inside the extruder head, a filter plate fixedly connected to one side of the sealing plate, the filter plate being disposed inside the extruder head, and a connecting component being disposed on the surface of the sealing plate.

[0009] Preferably, the connecting assembly includes two connecting blocks two, which are fixedly connected to the surface of the sealing plate. Two connecting blocks one are fixedly connected to the surface of the extrusion head. The connecting blocks two and the connecting blocks one abut against each other. A pin is slidably connected inside the connecting blocks two, and the bottom end of the pin is slidably connected inside the connecting blocks one.

[0010] Preferably, a movable sleeve is threaded onto the surface of the conveying pipe, and the inner side of the movable sleeve abuts against the surface of the protrusion.

[0011] Preferably, a baffle is fixedly connected to the inner side of the conveying pipe, and the top end of the connecting pipe abuts against the bottom side of the baffle.

[0012] Preferably, the connecting pipe has a groove inside, and one end of the protrusion is slidably connected inside the groove.

[0013] Preferably, a limiting plate is fixedly connected to the surface of the pin, a spring is sleeved on the surface of the pin, the bottom end of the spring is fixedly connected to the top side of the limiting plate, and the top end of the spring is fixedly connected to the inside of the connecting block two.

[0014] Preferably, a limiting groove is formed inside the connecting block two, and the limiting plate is slidably connected inside the limiting groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This high-flow nylon extruder die head structure enables quick assembly and disassembly of the feed pipe and connecting pipe through the installation component. The engagement or disengagement of the protrusion and the groove of the connecting pipe can be controlled by rotating the moving sleeve. No special tools are required, which greatly shortens the die head assembly and disassembly time and improves production efficiency.

[0017] 2. This high-flow nylon extruder die head structure, through the cooperation of the filter assembly and the connecting assembly, allows the sealing plate and filter plate to be disassembled simply by pulling the pin, enabling quick replacement of the filter assembly, avoiding the complete disassembly of the die head, reducing raw material waste, and ensuring production continuity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the connecting pipe structure in this utility model;

[0020] Figure 3 for Figure 2 Enlarged diagram of point A in the diagram;

[0021] Figure 4 This is a schematic diagram of the filter plate structure in this utility model;

[0022] Figure 5 This is a schematic diagram of the pin structure in this utility model.

[0023] In the diagram: 1. Feed pipe; 2. Mounting assembly; 201. Tension spring; 202. Push plate; 203. Protrusion; 204. Moving sleeve; 3. Connecting pipe; 4. Extrusion head; 5. Filter assembly; 501. Filter plate; 502. Sealing plate; 6. Baffle; 7. Connecting assembly; 701. Connecting block one; 702. Connecting block two; 703. Pin; 704. Spring; 705. Limiting plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0026] Please see Figures 1-5 As shown, this utility model provides a technical solution:

[0027] A die structure for a high-flow nylon extruder includes a feed pipe 1, a connecting pipe 3 slidably connected to the feed pipe 1, and an extrusion head 4 fixedly connected to the bottom end of the connecting pipe 3. The connecting pipe 3 serves to connect the feed pipe 1 and the extrusion head 4. A filter assembly 5 is provided inside the extrusion head 4. An installation assembly 2 is provided inside the feed pipe 1. The installation assembly 2 includes two protrusions 203 slidably connected inside the feed pipe 1. A push plate 202 is fixedly connected to the surface of the protrusions 203. A tension spring 201 is fixedly connected to one side of the push plate 202. One end of the tension spring 201 is fixedly connected inside the feed pipe 1. The tension spring 201 is used to pull the protrusions 203 back into the feed pipe 1.

[0028] In this embodiment, the filter assembly 5 includes a sealing plate 502 slidably connected inside the extruder head 4, a filter plate 501 fixedly connected to one side of the sealing plate 502, the filter plate 501 being disposed inside the extruder head 4, and a connecting assembly 7 being disposed on the surface of the sealing plate 502. The sealing plate 502 can seal the end of the extruder head 4 to prevent raw material leakage, and the filter plate 501 can filter impurities in the molten raw material to ensure the quality of the extruded product.

[0029] In this embodiment, the connecting component 7 includes two connecting blocks 702. The connecting blocks 702 are fixedly connected to the surface of the sealing plate 502. Two connecting blocks 701 are fixedly connected to the surface of the extruder head 4. The connecting blocks 702 and the connecting blocks 701 abut against each other. A pin 703 is slidably connected inside the connecting blocks 702. The bottom end of the pin 703 is slidably connected inside the connecting blocks 701. Through the cooperation of the pin 703 with the connecting blocks 701 and the connecting blocks 702, the sealing plate 502 and the extruder head 4 can be fixed and separated quickly.

[0030] In this embodiment, a movable sleeve 204 is threadedly connected to the surface of the feed pipe 1. The inner side of the movable sleeve 204 abuts against the surface of the protrusion 203. The movable sleeve 204 moves axially along the feed pipe 1 through threaded transmission, thereby pushing the protrusion 203 to achieve position adjustment.

[0031] In this embodiment, a baffle 6 is fixedly connected to the inner side of the feed pipe 1, and the top end of the connecting pipe 3 abuts against the bottom side of the baffle 6. The baffle 6 can limit the insertion depth of the connecting pipe 3 to ensure that the protrusion 203 can be accurately aligned with the groove of the connecting pipe 3.

[0032] In this embodiment, a groove is provided inside the connecting pipe 3, and one end of the protrusion 203 is slidably connected inside the groove. The engaging structure between the protrusion 203 and the groove can stably fix the connecting pipe 3 inside the conveying pipe 1 to prevent it from falling off during operation.

[0033] In this embodiment, a limiting plate 705 is fixedly connected to the surface of the pin 703, and a spring 704 is sleeved on the surface of the pin 703. The bottom end of the spring 704 is fixedly connected to the top side of the limiting plate 705, and the top end of the spring 704 is fixedly connected to the inside of the second connecting block 702. The elastic force of the spring 704 can push the pin 703 to automatically insert into the first connecting block 701, thereby realizing the automatic locking of the connecting component 7.

[0034] In this embodiment, a limiting groove is provided inside the connecting block 2 702, and the limiting plate 705 is slidably connected inside the limiting groove. The cooperation between the limiting plate 705 and the limiting groove can limit the movement trajectory of the pin 703 and prevent the pin 703 from shifting or falling off during the sliding process.

[0035] In this embodiment, the high-flow nylon extruder die structure is used by first assembling the device. The top end of the connecting pipe 3 is inserted into the feed pipe 1 until the top end of the connecting pipe 3 abuts against the baffle 6. At this time, the groove of the connecting pipe 3 is aligned with the position of the protrusion 203 in the feed pipe 1. Then, the moving sleeve 204 is rotated clockwise. The moving sleeve 204 moves upward along the thread on the surface of the feed pipe 1, and its inner side pushes the protrusion 203 to slide towards the center of the feed pipe 1 until one end of the protrusion 203 is completely inserted into the groove of the connecting pipe 3, thus completing the fixed connection between the feed pipe 1 and the connecting pipe 3.

[0036] Next, the filter assembly 5 is installed. The filter plate 501 is aligned with the opening of the extruder head 4 and inserted inside. The sealing plate 502 is pushed until it is in contact with the end of the extruder head 4. At this time, the connecting block 702 on the surface of the sealing plate 502 abuts against the connecting block 701 on the surface of the extruder head 4, and the insertion hole on the connecting block 702 is aligned with the insertion hole on the connecting block 701. Under the action of the elastic force, the spring 704 pushes the limiting plate 705 downward. The limiting plate 705 drives the pin 703 to slide down synchronously. The bottom end of the pin 703 is inserted into the insertion hole of the connecting block 701, thus realizing the installation and fixation of the filter assembly 5.

[0037] During operation, the molten, highly fluid nylon raw material is fed into the connecting pipe 3 through the feed pipe 1 under the conveying pressure of the extruder, and then enters the extrusion head 4. As the raw material flows within the extrusion head 4, the filter plate 501 intercepts and filters impurities, particles, and other foreign matter in the raw material. The purified raw material is shaped along the flow channel of the extrusion head 4 and finally extruded from the discharge port of the extrusion head 4.

[0038] When impurities accumulate on the surface of filter plate 501, affecting the raw material flow efficiency, filter assembly 5 needs to be replaced. During replacement, pull the top of pin 703 upwards. Pin 703 will cause limit plate 705 to compress spring 704 until the bottom of pin 703 is completely disengaged from the insertion hole of connecting block 701. At this point, connecting assembly 7 is unlocked. Pull sealing plate 502 outwards. Sealing plate 502 will cause filter plate 501 to be pulled out from inside extruder 4. After replacing with a new filter plate 501, re-fix it according to the above installation steps. The entire replacement process does not require disassembling the die head body.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A die head structure for a high-flow nylon extruder, comprising a feed pipe (1), characterized in that: The feeding pipe (1) is slidably connected to a connecting pipe (3), and an extrusion head (4) is fixedly connected to the bottom end of the connecting pipe (3). A filter assembly (5) is provided inside the extrusion head (4). An installation assembly (2) is provided inside the feeding pipe (1). The installation assembly (2) includes two protrusions (203) slidably connected inside the feeding pipe (1). A push plate (202) is fixedly connected to the surface of the protrusions (203). A tension spring (201) is fixedly connected to one side of the push plate (202). One end of the tension spring (201) is fixedly connected inside the feeding pipe (1).

2. The extruder die structure for high-flow nylon as described in claim 1, characterized in that: The filter assembly (5) includes a sealing plate (502) slidably connected inside the extruder head (4), a filter plate (501) is fixedly connected to one side of the sealing plate (502), the filter plate (501) is disposed inside the extruder head (4), and a connecting assembly (7) is disposed on the surface of the sealing plate (502).

3. The extruder die structure for high-flow nylon as described in claim 2, characterized in that: The connecting assembly (7) includes two connecting blocks (702), which are fixedly connected to the surface of the sealing plate (502). Two connecting blocks (701) are fixedly connected to the surface of the extrusion head (4). The connecting blocks (702) and the connecting blocks (701) abut against each other. A pin (703) is slidably connected inside the connecting blocks (702), and the bottom end of the pin (703) is slidably connected inside the connecting blocks (701).

4. The extruder die structure for high-flow nylon as described in claim 1, characterized in that: The feed pipe (1) is threaded with a movable sleeve (204), and the inner side of the movable sleeve (204) abuts against the surface of the protrusion (203).

5. The extruder die structure for high-flow nylon as described in claim 1, characterized in that: A baffle (6) is fixedly connected to the inside of the conveying pipe (1), and the top end of the connecting pipe (3) abuts against the bottom side of the baffle (6).

6. The extruder die structure for high-flow nylon as described in claim 1, characterized in that: The connecting pipe (3) has a groove inside, and one end of the protrusion (203) is slidably connected inside the groove.

7. The extruder die structure for high-flow nylon as described in claim 3, characterized in that: The pin (703) is fixedly connected to the limiting plate (705), and a spring (704) is sleeved on the surface of the pin (703). The bottom end of the spring (704) is fixedly connected to the top side of the limiting plate (705), and the top end of the spring (704) is fixedly connected to the inside of the connecting block two (702).

8. The extruder die structure for high-flow nylon as described in claim 7, characterized in that: The connecting block 2 (702) has a limiting groove inside, and the limiting plate (705) is slidably connected inside the limiting groove.

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