Multi-stage extrusion braided bag wire drawing machine

Abstract

The utility model discloses a multi -step extrusion braided bag wire drawing machine, including first, second extrusion mechanism of upper and lower series connection. Its innovation lies in, is provided with filter on the discharge path of at least one extrusion mechanism. Through the position and the number of stages of filter of flexible configuration, has realized to the efficient classification of recycled plastic raw materials filters. The utility model effectively solved the problem of traditional equipment feeding, dehydration is not pure, filter screen is easy to block, and the production stability, flat silk quality and the adaptability to low quality raw material have been improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of woven bag production technology, and in particular to a multi-stage extrusion woven bag drawing machine. Background Technology

[0002] Traditional single-screw woven bag drawing machines have problems such as easy feeding bridging, incomplete dewatering leading to broken fibers, and frequent filter clogging due to impurities when processing recycled materials, which affect production continuity and product quality. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the prior art and provide a multi-stage extrusion woven bag drawing machine that can stably process recycled materials and filter them efficiently.

[0004] This utility model discloses a multi-stage extrusion woven bag drawing machine, including a frame, characterized in that: it further includes a first extrusion mechanism and a second extrusion mechanism arranged in series. The first extrusion mechanism includes a first barrel, a first extrusion screw, and a first heating element; the first barrel is provided with a first feed end and a first discharge end; The second extrusion mechanism includes a second barrel, a second extrusion screw, and a second heating element; the second barrel is provided with a second feed end and a second discharge end; the top of the second feed end is provided with a receiving interface for receiving material from the first discharge end; the second discharge end is connected to a discharge head, and the discharge head is provided with a plurality of discharge holes; At least one filter is provided on the discharge path of the first extrusion mechanism and / or the discharge path of the second extrusion mechanism.

[0005] A further feature of this invention is that a first filter is provided only on the discharge path of the first extrusion mechanism.

[0006] A further feature of this invention is that a second filter is provided only on the discharge path of the second extrusion mechanism.

[0007] A further feature of this invention is that a filter is provided on the discharge path of both the first extrusion mechanism and the second extrusion mechanism.

[0008] A further feature of this invention is that the filter disposed in the first extrusion mechanism is a first filter, which includes a first filter I and a first filter II arranged sequentially along the material flow direction, and the pore size of the first filter I is larger than that of the first filter II; the filter disposed in the second extrusion mechanism is a second filter, which is a single-stage filter.

[0009] A further feature of this invention is that the filter disposed on the first extrusion mechanism is a first filter, which is a single-stage filter; the filter disposed on the second extrusion mechanism is a second filter, which includes a second filter I and a second filter II arranged sequentially along the material flow direction, and the pore size of the second filter I is larger than that of the second filter II.

[0010] A further feature of this invention is that the filter disposed in the first extrusion mechanism or the second extrusion mechanism includes filter I and filter II arranged sequentially along the material flow direction, and the pore size of filter I is larger than that of filter II.

[0011] A further feature of this invention is that an exhaust port is provided on the side wall of the first screw barrel, and the exhaust port is connected to an air pump.

[0012] A further feature of this invention is that a water circulation chamber is provided inside the wall of the first screw barrel, and a water circulation pump is connected to the water circulation chamber.

[0013] A further feature of this invention is that a feeding device is provided at the first feed end; the feeding device includes a feed hopper and a third extrusion screw disposed within the feed hopper.

[0014] By adopting the above technical solution, the configuration location and quantity of filters can be flexibly selected according to the quality of raw materials, realizing graded filtration or centralized filtration. While ensuring the purity of the melt, it effectively extends the service life of the filter screen, reduces downtime, and is flexible in configuration to adapt to recycled materials of different qualities. Forced feeding and active dewatering ensure production stability. The graded filtration strategy takes into account both filtration effect and efficiency. High-quality flat yarns can be produced using low-cost recycled materials, resulting in significant economic benefits. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of the first extrusion mechanism of this utility model having a single-stage filter and the second extrusion mechanism having a two-stage filter; Figure 2 for Figure 1 Another perspective structural diagram; Figure 3 This is a partial schematic diagram of the first extrusion mechanism and the feeding device; Figure 4 This is a schematic diagram of part of the structure of this utility model; Figure 5 This is a schematic diagram of the feeding device of this utility model; Figure 6 This is a three-dimensional view of the second extrusion mechanism and the discharge head; Figure 7A schematic diagram of the structure of the first and second extrusion mechanisms of this utility model, both equipped with two-stage filters; Figure 8 A schematic diagram of the structure of this utility model, in which both the first and second extrusion mechanisms are equipped with single-stage filters; Figure 9 This is a schematic diagram of the structure of this utility model where only the first extrusion mechanism has a single-stage filter; Figure 10 This is a schematic diagram of a single-stage filter structure with only the second extrusion mechanism of this utility model. Figure 11 The first extrusion mechanism of this utility model is equipped with a two-stage filter, and the second extrusion mechanism is equipped with a single-stage filter.

[0016] 1-First extrusion mechanism, 11-First barrel, 111-First feed end, 112-First discharge end, 12-First extrusion screw, 13-Exhaust port; 2-Second extrusion mechanism, 21-Second barrel, 211-Second feed end, 212-Second discharge end, 22-Second extrusion screw; 3-Receiving interface; 4-Discharge head, 41-Discharge hole; 5-Second filter, 51-Second filter I, 52-Second filter II; 6-Feeding device, 61-Feed hopper, 62-Third extrusion screw; 8-Air pump; 9-Water circulation pump; 10-First filter, 101-First filter I, 102-First filter II Detailed Implementation

[0017] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings: Example 1 (Both the first and second extrusion mechanisms are equipped with two-stage filters) This utility model discloses a multi-stage extrusion woven bag drawing machine, including a frame. In the embodiment of this utility model, it also includes a first extrusion mechanism 1 and a second extrusion mechanism 2 arranged in series. The first extrusion mechanism 1 includes a first screw barrel 11, a first extrusion screw 12, and a first heating element (the first heating element is preferably a heating block for easy installation, but it can also be electromagnetic heating, which is obscured in the figure and not shown); the first screw barrel 11 is provided with a first feed end 111 and a first discharge end 112; The second extrusion mechanism 2 includes a second screw barrel 21, a second extrusion screw 22, and a second heating element (the second heating element is preferably a heating block for easy installation, but electromagnetic heating can also be used, which is obscured in the figure and not shown); the second screw barrel 21 is provided with a second feed end 211 and a second discharge end 212; the top of the second feed end 211 is provided with a receiving interface 3 for receiving the material from the first discharge end 212; the second discharge end 212 is connected to a discharge head 4, which is provided with a plurality of discharge holes; Both the first discharge end 112 and the discharge head 4 are equipped with filters.

[0018] The filter on the first discharge end 112 is the first filter 10, which includes the first filter I101 and the first filter II102. The pore size of the first filter I101 is larger than that of the first filter II102. The filter on the discharge head 4 is the second filter 5, which includes the second filter I51 and the second filter II52. The pore size of the second filter I51 is larger than that of the second filter II52.

[0019] The first screw barrel 11 has an exhaust port 13 on its side wall, and the exhaust port 13 is connected to an air pump 8.

[0020] The first screw barrel 11 has a water circulation chamber inside its barrel wall, and the water circulation chamber is connected to a water circulation pump 9.

[0021] A feeding device 6 is provided at the first feed end 111; the feeding device 6 includes a feed hopper 61 and a third extrusion screw 62 disposed in the feed hopper 61, and the third extrusion screw 62 is preferably a double conical screw.

[0022] This wire drawing machine includes a first and a second extrusion mechanism (1, 2) connected in series. The first screw barrel (11) is equipped with a feeding device (6), an exhaust port (13), and a water circulation system. Two-stage first filters (10) (first filter I101 and first filter II102) are installed in the first discharge end (112). The receiving port (3) at the top of the second screw barrel (21) receives the first stage of incoming material, and two-stage second filters (5) (second filter I51 and second filter II52) are also installed in its discharge head (4). During production, the raw material is dehydrated and pre-filtered in the first stage, then enters the second stage for homogenization and fine filtration, and finally a high-quality melt strip is extruded from the discharge hole (41).

[0023] Example 2 (Two-stage filter in the first extrusion mechanism, single-stage filter in the second extrusion mechanism) This embodiment is similar in structure to Embodiment 1, the difference being in the filter configuration: A two-stage first filter 10, consisting of a first filter I101 and a second filter II102, is installed in the first discharge end 112. A single-stage second filter 5 is installed in the discharge head 4.

[0024] This configuration is suitable for recycled materials with high levels of impurities. The first stage completes the main filtration, reducing the load on the second stage, which then performs the final check, achieving a balance between filtration effectiveness and maintenance frequency.

[0025] Example 3 (Single-stage filter in the first extrusion mechanism, two-stage filter in the second extrusion mechanism) This embodiment is similar in structure to Embodiment 1, the difference being in the filter configuration: Only one single-stage first filter 10 is installed in the first discharge end 112. A two-stage second filter 5 consisting of second filter I 51 and second filter II 52 is installed in the discharge head 4.

[0026] This configuration is suitable for scenarios with extremely high requirements for the purity of the final product. The first stage performs preliminary protective filtration, and the second stage performs deep fine filtration when the melt is in its optimal state to ensure the quality of the flat wire.

[0027] Example 4 (The first extrusion mechanism is equipped with a single-stage filter, and the second extrusion mechanism is without a filter) This embodiment is similar in structure to Embodiment 1, the difference being in the filter configuration: Only a single-stage filter 10 is provided on the first discharge end 112, and no filter is provided on the discharge head 4.

[0028] Example 5 (The first extrusion mechanism is not equipped with a filter, while the second extrusion mechanism is equipped with a single-stage filter) This embodiment is similar in structure to Embodiment 1, the difference being in the filter configuration: A single-stage second filter 5 is installed only on the discharge head 4, and no filter is installed on the first discharge end 112.

[0029] Example 6 (Both the first and second extrusion mechanisms are equipped with single-stage filters) This embodiment is similar in structure to Embodiment 1, the difference being in the filter configuration: Both the discharge head 4 and the first discharge end 112 are single-stage filters.

[0030] The single-stage filter described in this article preferably uses a single filter screen for filtration, while the two-stage filter uses two filter screens arranged sequentially for filtration. Of course, the first extrusion mechanism 1 and the second extrusion mechanism 2 can both use more than two filter screens for filtration. Alternatively, the first extrusion mechanism can be equipped with a multi-stage filter while the second extrusion mechanism is not equipped with a filter, or the second extrusion mechanism can be equipped with a multi-stage filter while the first extrusion mechanism is not equipped with a filter.

Claims

1. A multi-stage extrusion woven bag drawing machine, comprising a frame, characterized in that: It also includes a first extrusion mechanism (1) and a second extrusion mechanism (2) arranged in series. The first extrusion mechanism (1) includes a first screw barrel (11), a first extrusion screw (12) and a first heating element; the first screw barrel (11) is provided with a first feed end (111) and a first discharge end (112). The second extrusion mechanism (2) includes a second screw barrel (21), a second extrusion screw (22), and a second heating element; the second screw barrel (21) is provided with a second feed end (211) and a second discharge end (212); the top of the second feed end (211) is provided with a receiving interface (3) for receiving the material from the first discharge end (112); the second discharge end (212) is connected to a discharge head (4), and the discharge head (4) is provided with a plurality of discharge holes; At least one filter is provided on the discharge path of the first extrusion mechanism (1) and / or the discharge path of the second extrusion mechanism (2).

2. The multi-stage extrusion woven bag drawing machine according to claim 1, characterized in that: A first filter (10) is provided only on the discharge path of the first extrusion mechanism (1).

3. The multi-stage extrusion woven bag drawing machine according to claim 1, characterized in that: A second filter (5) is provided only on the discharge path of the second extrusion mechanism (2).

4. The multi-stage extrusion woven bag drawing machine according to claim 1, characterized in that: A filter is provided on the discharge path of both the first extrusion mechanism (1) and the second extrusion mechanism (2).

5. A multi-stage extrusion woven bag drawing machine according to claim 4, characterized in that: The filter provided in the first extrusion mechanism (1) is a first filter (10), which includes a first filter I (101) and a first filter II (102) arranged sequentially along the material flow direction, and the pore size of the first filter I (101) is larger than the pore size of the first filter II (102); the filter provided in the second extrusion mechanism (2) is a second filter (5), which is a single-stage filter.

6. A multi-stage extrusion woven bag drawing machine according to claim 4, characterized in that: The filter installed in the first extrusion mechanism (1) is a first filter (10), which is a single-stage filter; the filter installed in the second extrusion mechanism (2) is a second filter (5), which includes a second filter I (501) and a second filter II (502) arranged sequentially along the material flow direction, and the pore size of the second filter I (501) is larger than that of the second filter II (502).

7. A multi-stage extrusion woven bag drawing machine according to any one of claims 1 to 3, characterized in that: The filter disposed in the first extrusion mechanism (1) or the second extrusion mechanism (2) includes filter I and filter II arranged sequentially along the material flow direction, and the pore size of filter I is larger than that of filter II.

8. The multi-stage extrusion woven bag drawing machine according to claim 1, characterized in that: The first screw barrel (11) has an exhaust port (13) on its side wall, and the exhaust port (13) is connected to an air pump (8).

9. A multi-stage extrusion woven bag drawing machine according to claim 1 or 8, characterized in that: The first screw barrel (11) has a water circulation chamber inside its barrel wall, and the water circulation chamber is connected to a water circulation pump (9).

10. A multi-stage extrusion woven bag drawing machine according to claim 1, characterized in that: A feeding device (6) is provided at the first feed end (111); the feeding device (6) includes a feed hopper (61) and a third extrusion screw (62) disposed in the feed hopper (61).

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