Yarn cutting device for chinlon filament production

By introducing positioning and auxiliary mechanisms into the filament cutting device, the straightening and precise cutting of nylon filaments are achieved, solving the problem of burrs caused by filament shrinkage during cutting and improving the cutting effect.

CN223918035UActive Publication Date: 2026-02-17南通文凯化纤有限公司
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Patent Information

Application Number
CN202423266242.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-02-17
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Existing filament cutting devices lack the ability to position and straighten nylon filaments, causing filament shrinkage during cutting, which affects the cutting effect and may result in burrs.

Method used

The system employs a positioning mechanism and auxiliary mechanisms, using a combination of a slide, a sliding plate, a guide rod, a pressure rod, and a hinge rod to achieve the positioning, clamping, and straightening of nylon filaments, which are then precisely cut using a cylinder-driven cutter.

Benefits of technology

It effectively prevents the shrinkage of nylon filaments during cutting, avoids the appearance of burrs, and ensures the stability and consistency of the cutting effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of shredding devices, and discloses a shredding device for chinlon filament production, which comprises a main body, supporting legs fixedly mounted at the bottom of the main body, an air cylinder fixedly mounted at the top of the main body, a cutter fixedly mounted at the output end of the air cylinder, and a positioning mechanism arranged on the inner wall of the main body. According to the shredding device for chinlon filament production, in order to prevent chinlon filaments from shrinking and deviating in the cutting process, a hinge rod at the end of a fixing rod pushes a pressing rod to slide downwards on the inner wall of a guide rod and position and clamp the chinlon filaments, and when the pressing rod slides downwards on the inner wall of the guide rod, the pressing rod is fixed to the guide rod, so that the chinlon filaments are prevented from being shrunk and deviated. The guide rods enable the two sets of sliding plates to slide on the inner walls of the sliding grooves and get away from each other to straighten the chinlon filaments due to thrust provided by the hinge rods, and the situation that the chinlon filaments contract when the cutter cuts the chinlon filaments, and burrs appear on the cut chinlon filaments is prevented.
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Description

Technical Field

[0001] This utility model relates to the technical field of filament cutting devices, specifically a filament cutting device for nylon filament production. Background Technology

[0002] After the production of nylon filaments is completed, a filament cutting device is needed. This device is specifically designed for cutting nylon filaments. Nylon filaments are flexible and possess unique tensile strength. The filament cutting device has a robust main structure and is equipped with sharp and durable cutting blades, mostly made of alloy steel, to ensure precise cutting into the filament. During operation, the cutting components move rapidly according to a preset length and frequency, relying on mechanical power or electronic control to instantly cut the filament, thus dividing the long nylon filaments into uniform short segments to meet the needs of various subsequent production stages such as textile weaving and sample weaving.

[0003] The existing filament cutting devices still have some shortcomings in practical applications. First, the existing filament cutting devices lack positioning and straightening of nylon filaments, which will cause the nylon filaments to shrink during cutting, affecting the cutting effect. In severe cases, it will cause the cut nylon filaments to have burrs, affecting the appearance. Utility Model Content

[0004] The purpose of this invention is to provide a nylon filament cutting device for nylon filament production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a nylon filament cutting device, comprising a main body, a support leg fixedly installed at the bottom of the main body, a cylinder fixedly installed at the top of the main body, a cutter fixedly installed at the output end of the cylinder, a positioning mechanism provided on the inner wall of the main body, and an auxiliary mechanism provided on the inner wall of the main body. The positioning mechanism includes: a slide groove, the slide groove being formed on the inner wall of the main body, and a sliding plate, the sliding plate sliding on the inner wall of the slide groove.

[0006] Preferably, a guide rod is fixedly installed on the upper surface of the skateboard, and a pressure rod is slidably installed on the inner wall of the guide rod.

[0007] Preferably, the outer wall of the pressure rod is hinged with a hinge rod, and the outer wall of the cylinder output end is fixedly installed with a fixing rod.

[0008] Preferably, the auxiliary mechanism includes: a groove, the groove being formed on the inner wall of the main body, a round rod being fixedly installed on the inner wall of the groove, a top block being slidably installed on the outer wall of the round rod, a spring being sleeved on the outer wall of the round rod, a rectangular rod being hinged to the inner wall of the groove, and an L-shaped rod being fixedly installed on the outer wall of the cylinder output end.

[0009] Preferably, one end of the hinge rod is hinged to the outer wall of the pressure rod, and the other end of the hinge rod is hinged to the end of the fixed rod. Two sets of sliding grooves are provided, mirrored with the center line of the main body in the vertical direction as the axis of symmetry. Slide plates are slidably installed on the inner walls of both sets of sliding grooves. By setting the hinge rod, the pressure rod can be displaced.

[0010] Preferably, one end of the spring is fixedly installed on the inner wall of the top block, and the other end of the spring is fixedly installed on the inner wall of the groove. The end of the rectangular rod is attached to the bottom of the top block, and the top block can be reset by setting the spring.

[0011] Compared with the prior art, this utility model provides a nylon filament cutting device for nylon filament production, which has the following advantages:

[0012] 1. In order to prevent the nylon filament from shrinking and deviating during cutting, the nylon filament cutting device uses a hinged rod at the end of the fixed rod to push the pressure rod to slide downward on the inner wall of the guide rod and position and clamp the nylon filament. At the same time as the pressure rod slides downward on the inner wall of the guide rod, the guide rod will cause two sets of sliding plates to slide on the inner wall of the groove and move away from each other due to the thrust provided by the hinged rod, so as to straighten the nylon filament and prevent the nylon filament from shrinking during cutting, which would cause the cut nylon filament to have rough edges.

[0013] 2. The nylon filament cutting device for nylon filament production, in order to make the cutter cut the nylon filament better, uses an L-rod to squeeze the top block, causing the top block to slide upward on the inner wall of the groove and slightly lift the nylon filament, so that the cutter can better contact the nylon filament and cut it. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of part of the structure of this utility model;

[0016] Figure 3 This utility model Figure 2 Enlarged schematic diagram of structure A;

[0017] Figure 4 This utility model Figure 2 An enlarged schematic diagram of the B structure.

[0018] In the diagram: 1. Main body; 2. Support leg; 3. Cylinder; 4. Cutting blade; 5. Positioning mechanism; 501. Slide groove; 502. Slide plate; 503. Guide rod; 504. Pressure rod; 505. Hinge rod; 506. Fixing rod; 6. Auxiliary mechanism; 601. Groove; 602. Round rod; 603. Top block; 604. Spring; 605. Rectangular rod; 606. L-shaped rod. Detailed Implementation

[0019] like Figures 1-4 As shown, this utility model provides a technical solution: a nylon filament cutting device for production, including a main body 1, a support leg 2 fixedly installed at the bottom of the main body 1, a cylinder 3 fixedly installed at the top of the main body 1, a cutter 4 fixedly installed at the output end of the cylinder 3, a positioning mechanism 5 provided on the inner wall of the main body 1, and an auxiliary mechanism 6 provided on the inner wall of the main body 1.

[0020] The aforementioned positioning mechanism 5 includes: a slide groove 501, a slide plate 502, a guide rod 503, a pressure rod 504, a hinge rod 505, and a fixing rod 506. The slide groove 501 is formed on the inner wall of the main body 1. The slide plate 502 slides on the inner wall of the slide groove 501. Two sets of slide grooves 501 are formed and mirrored about the vertical center line of the main body 1. The inner walls of both sets of slide grooves 501 are slidably mounted with slide plates 502. The upper surface of the slide plate 502 is fixedly mounted with a guide rod 503. The inner wall of the guide rod 503 is slidably mounted with a pressure rod 504. The outer wall of the pressure rod 504 is hinged with a hinge rod 505. One end of the hinge rod 505 is hinged to the pressure rod 506. The outer wall of cylinder 3 is fixedly mounted with a fixed rod 506. The hinge rod 505 at the end of the fixed rod 506 will push the pressure rod 504 to slide down the inner wall of the guide rod 503 and position and clamp the nylon filament. While the pressure rod 504 slides down the inner wall of the guide rod 503, the guide rod 503 will slide the two sets of slide plates 502 on the inner wall of the slide groove 501 and move away from each other to straighten the nylon filament and prevent the nylon filament from shrinking when the cutter 4 cuts, resulting in burrs on the cut nylon filament.

[0021] The aforementioned auxiliary mechanism 6 includes: a groove 601, a round rod 602, a top block 603, a spring 604, a rectangular rod 605, and an L-shaped rod 606. The groove 601 is formed on the inner wall of the main body 1. The round rod 602 is fixedly installed on the inner wall of the groove 601. The top block 603 is slidably installed on the outer wall of the round rod 602. The spring 604 is sleeved on the outer wall of the round rod 602. One end of the spring 604 is fixedly installed on the inner wall of the top block 603, and the other end of the spring 604 is fixedly installed on the inner wall of the groove 601. The rectangular rod 605 is hinged to the inner wall of the groove 601. The end of the rectangular rod 605 is in contact with the bottom of the top block 603. The L-shaped rod 606 is fixedly installed on the outer wall of the output end of the cylinder 3. The L-shaped rod 606 will squeeze the top block 603, causing the top block 603 to slide upward on the inner wall of the groove 601 and slightly lift the nylon filament, so that the cutter 4 can better contact the nylon filament and cut it.

[0022] Working principle: Starting cylinder 3 causes its output end to drive the cutter 4 downwards. Simultaneously, the hinge rod 505 at the end of the fixed rod 506 pushes the pressure rod 504 downwards along the inner wall of the guide rod 503, positioning and clamping the nylon filament. While the pressure rod 504 slides downwards along the inner wall of the guide rod 503, the thrust provided by the hinge rod 505 causes the two sets of sliding plates 502 to slide along the inner wall of the groove 501 and move away from each other, straightening the nylon filament and preventing it from shrinking during cutting by the cutter 4, which could result in burrs. Simultaneously, as the output end of cylinder 3 descends, the L-rod 606 presses against the top block 603, causing the top block 603 to be positioned within the groove 601. The inner wall slides upward and slightly lifts the nylon filament, allowing the cutter 4 to better contact the nylon filament and cut it. After cutting, the output end of the cylinder 3 is lifted by controlling the cylinder 3. At this time, the hinge rod 505 at the end of the fixed rod 506 will pull the two sets of slide plates 502 to slide on the inner wall of the slide groove 501 and move closer to each other to release the tension on the nylon filament. While the hinge rod 505 pulls the slide plate 502, the pressure rod 504 will slide upward on the inner wall of the guide rod 503 as the hinge rod 505 is pulled and release the positioning clamp on the nylon filament. When the output end of the cylinder 3 is lifted, the L rod 606 releases the compression on the rectangular rod 605. At this time, the spring 604 will pull the top block 603 to slide downward on the inner wall of the groove 601 and reset.

[0023] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A cutting device for producing nylon filament, comprising a main body (1), characterized in that: The bottom of the body (1) is fixedly installed with supporting legs (2), the top of the body (1) is fixedly installed with a cylinder (3), the output end of the cylinder (3) is fixedly installed with a cutter (4), the inner wall of the body (1) is provided with a positioning mechanism (5), the inner wall of the body (1) is provided with an auxiliary mechanism (6), the positioning mechanism (5) comprises: A sliding groove (501) is formed in the inner wall of the body (1); A sliding plate (502) is slidably arranged in the inner wall of the sliding groove (501).

2. A sliver cutting device for producing a nylon filament according to claim 1, characterized in that: The upper surface of the sliding plate (502) is fixedly installed with a guide rod (503), and the inner wall of the guide rod (503) is slidably installed with a pressing rod (504).

3. A sliver cutting device for use in the production of nylon filament yarn according to claim 2, characterized in that: The outer wall of the pressing rod (504) is hingedly connected with a hinge rod (505), and the outer wall of the output end of the cylinder (3) is fixedly installed with a fixed rod (506).

4. A sliver cutting device for use in the production of nylon filament yarn according to claim 3, characterized in that: The auxiliary mechanism (6) comprises: a groove (601) formed in the inner wall of the body (1), the inner wall of the groove (601) is fixedly installed with a round rod (602), the outer wall of the round rod (602) is slidably installed with a top block (603), the outer wall of the round rod (602) is sleeved with a spring (604), the inner wall of the groove (601) is hingedly connected with a rectangular rod (605), and the outer wall of the output end of the cylinder (3) is fixedly installed with an L-shaped rod (606).

5. A sliver cutting device for use in the production of nylon filament yarn according to claim 4, characterized in that: One end of the hinge rod (505) is hingedly connected to the outer wall of the pressing rod (504), and the other end of the hinge rod (505) is hingedly connected to the end of the fixed rod (506), the sliding groove (501) is formed with two groups, which are symmetrically arranged about the center line in the vertical direction of the body (1), and the inner walls of the two groups of sliding grooves (501) are slidably installed with sliding plates (502).

6. A sliver cutting device for use in the production of nylon filament yarn according to claim 5, characterized in that: One end of the spring (604) is fixedly installed in the inner wall of the top block (603), and the other end of the spring (604) is fixedly installed in the inner wall of the groove (601), and the end of the rectangular rod (605) is attached to the bottom of the top block (603).