Accurate polyester low stretch yarn cutting device

Abstract

The utility model relates to the technical field of polyester low stretch yarn production, and discloses a polyester low stretch yarn accurate cutting device which comprises a cutting table, a hydraulic rod is installed at the upper end of the cutting table, the driving end of the hydraulic rod is fixedly connected with a sliding frame, and sliding grooves are formed in the front side and the rear side of the interior of the cutting table. The front end and the rear end of the sliding frame are slidably connected into the sliding grooves, a sliding rod is fixedly connected to the lower portion of the sliding frame, and a tool apron is slidably connected to the outer wall of the sliding rod. According to the utility model, through a transmission structure consisting of the motor I, the turntable and the like, the cutter can slide back and forth for cutting, and compared with single vertical cutting, the problem of irregular cuts caused by elasticity of wires, equipment vibration and the like can be reduced, so that the cutting precision is improved; and through clamping cooperation of the pressing roller and the feeding roller and elastic self-adaption of the second compression spring, the polyester low stretch yarn is effectively prevented from slipping or deviating in the conveying process, the accuracy of the cutting position is ensured, and the cutting precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of polyester low-elasticity yarn production technology, and in particular to a precision cutting device for polyester low-elasticity yarn. Background Technology

[0002] Draw texturing yarn (DTY) is a type of textured polyester fiber. It is made from polyester chips (PET) as raw material, using high-speed spinning to produce pre-oriented polyester yarn (POY), followed by drawing and false twisting. It features a short process, high efficiency, and good quality. As an important raw material in the textile industry, DTY is widely used in clothing, home textiles, and industrial textiles. In its production and processing, precise cutting is a key step that directly affects the quality and production efficiency of subsequent textile products.

[0003] Existing cutting devices mostly adopt a fixed vertical cutting mode, which is difficult to cope with the elastic deformation of polyester low elastic yarn and different cutting length requirements. During cutting, uneven cuts and length deviations are easily caused by yarn stretching and equipment vibration. In addition, when some cutting devices are feeding, polyester low elastic yarn is prone to deviation and slippage due to uneven tension and poor adaptability of conveying components. In order to address these technical problems, this application proposes a precision cutting device for polyester low elastic yarn. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a precision cutting device for polyester low-elasticity yarn. Through a transmission structure consisting of a motor and a turntable, the cutter can reciprocate and slide for cutting. Compared to single vertical cutting, this reduces the problem of uneven cuts caused by yarn elasticity and equipment vibration, thereby improving cutting accuracy. Furthermore, the clamping cooperation between the pressure roller and the feeding roller, combined with the elastic adaptive force of the compression spring, effectively prevents the polyester low-elasticity yarn from slipping or shifting during transport, ensuring the accuracy of the cutting position and improving cutting precision.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A precision cutting device for polyester low-elasticity yarn includes a cutting table, a hydraulic rod installed at the upper end of the cutting table, a sliding frame fixedly connected to the driving end of the hydraulic rod, sliding grooves on both the front and rear sides of the cutting table, the front and rear ends of the sliding frame slidably connected to the inside of the sliding grooves, a sliding rod fixedly connected to the lower part of the sliding frame, a knife holder slidably connected to the outer wall of the sliding rod, a cutter installed at the lower end of the knife holder, a feeding assembly provided at the left end of the cutting table, and a discharge inclined plate fixedly connected to the right end of the cutting table.

[0007] Furthermore, a motor is installed at the upper end of the sliding frame, a turntable is fixedly connected to the drive end of the motor, and a fixing rod is fixedly connected to one side of the lower end of the turntable.

[0008] Furthermore, a connecting frame is fixedly connected to the upper end of the tool holder, and the interior of the connecting frame is slidably connected to the outer wall of the fixing rod.

[0009] Furthermore, compression springs are fitted on both the front and rear sides of the outer wall of the slide rod. One end of the compression spring is fixedly connected to the front and rear ends of the knife holder, and the other end of the compression spring is fixedly connected to the lower part of the sliding frame.

[0010] Furthermore, the feeding assembly includes a support frame fixedly connected to the left end of the cutting table, and a conveyor belt is installed inside the support frame.

[0011] Furthermore, a second motor is installed on the front right side of the support frame, and a rotating shaft is fixedly connected to the drive end of the second motor, and a feeding roller is fixedly connected to the outer wall of the rotating shaft.

[0012] Furthermore, two fixing blocks are fixedly connected to the upper right side of the support frame. A guide rod is fixedly connected inside the fixing block. A slider is slidably connected to the outer wall of the guide rod. A fixing shaft is fixedly connected to the opposite end of the slider. A pressure roller is rotatably connected to the outer wall of the fixing shaft.

[0013] Furthermore, a second compression spring is sleeved on the outer wall of the guide rod. The upper end of the second compression spring is fixedly connected to the upper side inside the fixed block, and the lower end of the second compression spring is fixedly connected to the upper end of the slider.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the combination of motor one, turntable, fixed rod and connecting frame transforms the traditional vertical cutting into reciprocating sliding cutting, which can effectively reduce the cutting deviation and burr problems caused by the elasticity of polyester low elastic yarn, thereby improving the cutting accuracy and cut quality. Moreover, the buffering of compression spring one makes the cutting action more stable.

[0016] 2. In this utility model, the clamping cooperation between the pressure roller and the feeding roller, combined with the elastic adaptive force of the compression spring, can effectively prevent the polyester low elastic yarn from slipping or shifting during the conveying process, thereby ensuring the accuracy of the cutting position and improving the cutting precision. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of a precision cutting device for polyester low-elasticity yarn proposed in this utility model;

[0018] Figure 2This is a side view of a precision cutting device for polyester low-elasticity yarn proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the sliding frame of a precision cutting device for polyester low-elasticity yarn proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the feeding component of a precision cutting device for polyester low-elasticity yarn proposed in this utility model.

[0021] Legend:

[0022] 1. Cutting table; 2. Support frame; 3. Conveyor belt; 4. Fixing block; 5. Discharge ramp; 6. Hydraulic rod; 7. Sliding frame; 8. Slide groove; 9. Knife holder; 10. Cutting knife; 11. Motor 1; 12. Turntable; 13. Fixing rod; 14. Connecting frame; 15. Slide rod; 16. Compression spring 1; 17. Motor 2; 18. Rotating shaft; 19. Feeding roller; 20. Pressure roller; 21. Fixing shaft; 22. Slider; 23. Guide rod; 24. Compression spring 2. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1-3 This utility model provides an embodiment of a precision cutting device for polyester low-elasticity yarn, including a cutting table 1, a hydraulic rod 6 installed at the upper end of the cutting table 1, a sliding frame 7 fixedly connected to the driving end of the hydraulic rod 6, a sliding groove 8 opened on both the front and rear sides of the cutting table 1, the front and rear ends of the sliding frame 7 slidably connected to the inside of the sliding groove 8, a sliding rod 15 fixedly connected to the lower part of the sliding frame 7, a knife holder 9 slidably connected to the outer wall of the sliding rod 15, a cutter 10 installed at the lower end of the knife holder 9, a motor 11 installed at the upper end of the sliding frame 7, a turntable 12 fixedly connected to the driving end of the motor 11, a fixing rod 13 fixedly connected to one side of the lower end of the turntable 12, a connecting frame 14 fixedly connected to the upper end of the knife holder 9, the inside of the connecting frame 14 slidably connected to the outer wall of the fixing rod 13, compression springs 16 sleeved on both the front and rear sides of the outer wall of the sliding rod 15, one end of the compression spring 16 fixedly connected to the front and rear ends of the knife holder 9, and the other end of the compression spring 16 fixedly connected to the lower part of the sliding frame 7.

[0025] Specifically, the motor 11 is started, driving the turntable 12 to perform a circular motion. The fixed rod 13 on the turntable 12 also performs a circular motion. The fixed rod 13 slides with the connecting frame 14, converting the circular motion into the reciprocating linear motion of the cutter holder 9 along the slide rod 15, enabling the cutter 10 to perform a transverse cutting action. Then, the hydraulic rod 6 is started, driving the sliding frame 7 to slide up and down along the slide groove 8, thereby adjusting the vertical position of the cutter 10 to adapt to the cutting needs of polyester low-elasticity yarn of different thicknesses. When the cutter holder 9 slides on the slide rod 15, the compression spring 16 is compressed or stretched, playing a buffering role and reducing vibration and impact during the cutting process. After the cutting action is completed, the elastic force of the compression spring 16 assists the cutter holder 9 to return to the initial position, ensuring the stability and repeatability of the cutting action. Through the combination of the motor 11, turntable 12, fixed rod 13 and connecting frame 14, the traditional vertical cutting is transformed into reciprocating sliding cutting, which can effectively reduce the cutting deviation and burr problems caused by the elasticity of polyester low-elasticity yarn, thereby improving the cutting accuracy and cut quality.

[0026] Reference Figure 1 , Figure 2 and Figure 4 A feeding assembly is provided at the left end of the cutting table 1. The feeding assembly includes a support frame 2 fixedly connected to the left end of the cutting table 1. A conveyor belt 3 is installed inside the support frame 2. A motor 17 is installed on the right side of the front end of the support frame 2. A rotating shaft 18 is fixedly connected to the drive end of the motor 17. A feeding roller 19 is fixedly connected to the outer wall of the rotating shaft 18. Two fixed blocks 4 are fixedly connected to the upper right end of the support frame 2. A guide rod 23 is fixedly connected inside the fixed block 4. A slider 22 is slidably connected to the outer wall of the guide rod 23. A fixed shaft 21 is fixedly connected to the opposite end of the slider 22. A pressure roller 20 is rotatably connected to the outer wall of the fixed shaft 21. A compression spring 24 is sleeved on the outer wall of the guide rod 23. The upper end of the compression spring 24 is fixedly connected to the upper side inside the fixed block 4. The lower end of the compression spring 24 is fixedly connected to the upper end of the slider 22. A discharge inclined plate 5 is fixedly connected to the right end of the cutting table 1.

[0027] Specifically, motor 17 is started, driving shaft 18 to rotate, which in turn rotates feeding roller 19. Working in conjunction with conveyor belt 3, it conveys polyester low-elasticity yarn from the left side to cutting table 1. Pressure roller 20, under the elastic force of compression spring 24, presses the polyester low-elasticity yarn downward, forming a clamping force with feeding roller 19 to ensure the stability of the yarn during feeding and prevent it from shifting. When the thickness of the yarn changes, pressure roller 20 slides on guide rod 23 via slider 22 to adaptively adjust its height and maintain stable pressure on the yarn. After cutting, the polyester low-elasticity yarn continues to move to the right under the push of feeding roller 19 to discharge inclined plate 5, where it slides naturally down the inclined plate to complete the discharge. Through the clamping cooperation between pressure roller 20 and feeding roller 19, combined with the elastic adaptive force of compression spring 24, the slippage or shifting of polyester low-elasticity yarn during conveying is effectively prevented, thereby ensuring the accuracy of the cutting position and improving cutting precision.

[0028] Working principle: In use, first start the conveyor belt 3 and place the polyester low-elasticity yarn on the conveyor belt 3. The conveyor belt 3 initially conveys the yarn. Motor 17 starts and drives the rotating shaft 18 to rotate, which in turn drives the feeding roller 19 to rotate to assist in conveying. At the same time, the pressure roller 20, under the action of the compression spring 24, works with the feeding roller 19 to clamp the polyester low-elasticity yarn. Because the compression spring 24 can elastically extend and retract, it can adapt to yarns of different thicknesses and ensure stable feeding. After the yarn is fed into place, the hydraulic rod 6 extends and pushes the sliding frame 7 to slide down the slide groove 8, so that the cutter 10 is close to the polyester low-elasticity yarn. Motor 11 starts and drives the turntable 12 to rotate. The fixed rod 13 on the turntable 12 makes a circular motion. Through sliding cooperation with the connecting frame 14, it drives the cutter holder 9 to slide back and forth along the slide rod 15. The cutter 10 moves with the cutter holder 9 to cut the yarn. The compression spring 16 buffers when the cutter holder 9 slides and assists the cutter holder 9 to reset after cutting. The cut yarn slides out through the discharge inclined plate 5, completing the cutting process.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for precise cutting of polyester low stretch yarns, characterized in that, The cutting table (1) is provided with a hydraulic rod (6) installed at the upper end of the cutting table (1). A sliding frame (7) is fixedly connected to the driving end of the hydraulic rod (6). Sliding grooves (8) are provided on both the front and rear sides of the cutting table (1). The front and rear ends of the sliding frame (7) are slidably connected to the inside of the sliding grooves (8). A sliding rod (15) is fixedly connected to the lower part of the sliding frame (7). A knife holder (9) is slidably connected to the outer wall of the sliding rod (15). A cutter (10) is installed at the lower end of the knife holder (9). A feeding assembly is provided at the left end of the cutting table (1). A discharge inclined plate (5) is fixedly connected to the right end of the cutting table (1).

2. The polyester low stretch yarn precision cutting device according to claim 1, characterized in that: The upper end of the sliding frame (7) is equipped with a motor (11), the drive end of the motor (11) is fixedly connected to a turntable (12), and a fixing rod (13) is fixedly connected to one side of the lower end of the turntable (12).

3. The polyester low stretch yarn precision cutting device according to claim 1, characterized in that: The upper end of the knife holder (9) is fixedly connected to a connecting frame (14), and the interior of the connecting frame (14) is slidably connected to the outer wall of the fixing rod (13).

4. The polyester low-stretch yarn precision cutting device according to claim 1, characterized in that: Compression springs (16) are fitted on both the front and rear sides of the outer wall of the slide rod (15). One end of the compression spring (16) is fixedly connected to the front and rear ends of the knife holder (9), and the other end of the compression spring (16) is fixedly connected to the lower part of the sliding frame (7).

5. The polyester low stretch yarn precision cutting device according to claim 1, characterized in that: The feeding assembly includes a support frame (2) fixedly connected to the left end of the cutting table (1), and a conveyor belt (3) is installed inside the support frame (2).

6. The polyester low-stretch yarn precision cutting device according to claim 5, characterized in that: A second motor (17) is installed on the right side of the front end of the support frame (2). A rotating shaft (18) is fixedly connected to the drive end of the second motor (17). A feeding roller (19) is fixedly connected to the outer wall of the rotating shaft (18).

7. The polyester low stretch yarn precision cutting device according to claim 5, characterized in that: Two fixing blocks (4) are fixedly connected to the upper right side of the support frame (2). A guide rod (23) is fixedly connected inside the fixing block (4). A slider (22) is slidably connected to the outer wall of the guide rod (23). A fixing shaft (21) is fixedly connected to the opposite end of the slider (22). A pressure roller (20) is rotatably connected to the outer wall of the fixing shaft (21).

8. The polyester low-stretch yarn precision cutting device according to claim 7, characterized in that: A compression spring 2 (24) is sleeved on the outer wall of the guide rod (23). The upper end of the compression spring 2 (24) is fixedly connected to the upper side inside the fixing block (4), and the lower end of the compression spring 2 (24) is fixedly connected to the upper end of the slider (22).

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