A chemical fiber stretching device

Abstract

This utility model belongs to the field of chemical fiber processing technology, and in particular to a chemical fiber stretching device. This utility model includes an integrated frame, a bottom groove plate connected to the bottom of the integrated frame, and a temperature control roller mounted on the surface of the integrated frame. A pressure roller is attached to the top of the temperature control roller, and a roller support rod is connected to the top of the pressure roller. An adjusting slide is sleeved on the outside of the roller support rod, and a conical spring is installed inside the cavity of the adjusting slide. An assembly bottom block and an assembly top block, connected to the upper and lower parts of the conical spring, are respectively fixed to the top of the roller support rod and the groove top wall of the adjusting slide. This utility model utilizes an adjusting screw and the adjusting slide to achieve synchronous adjustment, thereby adjusting the distance between the bottom pressure roller and the top temperature control roller. Simultaneously, the conical spring connects the adjusting slide and the assembly bottom block. Due to the progressive stiffness of the conical spring, the pressure roller is more sensitive to chemical fibers of different thicknesses, thus improving the contact effect.

Description

Technical Field

[0001] This utility model relates to the field of chemical fiber processing technology, specifically a chemical fiber stretching device. Background Technology

[0002] Fiber stretching is a process that uses physical external force (stretching) and heat energy (heating) to orient the polymer chains within the fiber along the axial direction. This process is a key step in giving chemical fibers practical strength and stiffness. Precisely controlling parameters such as stretching temperature, stretch ratio, and speed, and selecting appropriate stretching methods and equipment are crucial steps in the production of chemical fibers. It directly determines the final physical and mechanical properties of the fiber, such as strength, elongation, modulus, and dimensional stability.

[0003] When performing scribing and stretching, the chemical fiber is usually wound around multiple sets of stretching rollers, and the scribing is achieved by the speed difference between the different rollers. Since the friction coefficient of the chemical fiber surface is usually small, an auxiliary pressure roller is also needed to improve the stretching effect. The pressure roller is usually adjusted by a cylinder or by spring pressure plus manual adjustment. Since the stiffness of ordinary springs is large, they are not very adaptable to changes in the thickness of the filament bundle.

[0004] Therefore, we propose a chemical fiber stretching device to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a chemical fiber stretching device, which solves the problem mentioned in the background art that since the friction coefficient of chemical fiber surfaces is usually small, auxiliary pressure rollers are needed to improve the stretching effect. The adjustment of pressure rollers is generally achieved through cylinder adjustment or spring pressure + manual adjustment. However, since ordinary springs have high stiffness, they are not very adaptable to changes in the thickness of the fiber bundle.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A chemical fiber stretching device includes an integrated frame, a bottom groove plate connected to the bottom of the integrated frame, and a temperature control roller mounted on the surface of the integrated frame.

[0010] The pressure roller is attached to the top of the temperature control roller, and the top of the pressure roller is connected to the roller support rod;

[0011] An adjusting slide is sleeved on the outside of the roller support rod. A conical spring is installed inside the cavity of the adjusting slide. The top of the roller support rod and the top wall of the groove of the adjusting slide are respectively fixed with an assembly bottom block and an assembly top block that are connected to the upper and lower parts of the conical spring.

[0012] Furthermore, a support plate is fixed to the inner wall of the integrated frame, and a screw hole is provided at the front end of the support plate, with an adjusting screw screwed into the screw hole.

[0013] Furthermore, a top frame plate is movably connected to the top of the adjusting screw, and the bottom surfaces of the four bent parts of the top frame plate are fixedly connected to the top of the adjusting slide.

[0014] Furthermore, the surface of the support plate is provided with sliding holes that allow the adjustable slide to slide longitudinally.

[0015] Furthermore, connecting side posts are fixed at both ends of the pressure roller section, and a fitting top arc plate that abuts the top of the connecting side posts is fixed on the side of the roller support rod.

[0016] Furthermore, positioning holes are provided on the surfaces of the roller support rod and the connecting side insert.

[0017] Furthermore, a circular hole is provided at the bottom of the adjusting slide cylinder, and a support rod connecting plate that slides along the groove of the adjusting slide cylinder is fixed on the surface of the roller support rod.

[0018] Furthermore, the surface of the adjusting slide cylinder is provided with a replacement window, and a fitting top arc plate is fitted inside the groove of the replacement window.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, the present invention provides a chemical fiber stretching device, which has the following beneficial effects:

[0021] This invention utilizes an adjusting screw and a synchronously adjustable sliding cylinder to adjust the distance between the bottom pressure roller and the top temperature control roller. Simultaneously, it allows the mounting base block to move within the groove of the adjusting sliding cylinder. A conical spring connects the adjusting sliding cylinder and the mounting base block. Due to the progressive stiffness of the conical spring, the pressure roller is more sensitive to different thicknesses of synthetic fibers, thus improving the contact effect. Furthermore, a replacement window is provided on the surface of the adjusting sliding cylinder for convenient and quick replacement of the conical spring. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is an exploded view of the internal structure of the adjusting slide of this utility model;

[0024] Figure 3 This is a split view of the roller support rod and pressure roller section of this utility model.

[0025] In the diagram: 1. Integrated frame; 2. Bottom groove plate; 3. Temperature control roller; 4. Support plate; 5. Top frame plate; 6. Adjusting screw; 7. Adjusting slide; 8. Roller support rod; 9. Pressure roller section; 10. Support rod connecting plate; 11. Assembly bottom block; 12. Assembly top block; 13. Replacement window; 14. Conical spring; 15. Fitting top arc plate; 16. Connecting side insert; 17. Positioning hole section. Detailed Implementation

[0026] 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.

[0027] Example

[0028] like Figure 1-3 As shown in the figure, an embodiment of the present invention provides a chemical fiber stretching device, including an integrated frame 1, a bottom groove plate 2 connected to the bottom of the integrated frame 1, and temperature control rollers 3 installed on the surface of the integrated frame 1. Each set of temperature control rollers 3 is connected to the integrated frame 1 through bearings, and multiple sets of motors are set on the back of the integrated frame 1. Each motor corresponds to one temperature control roller 3. The motor drives the temperature control rollers 3 to rotate, so that there is a speed difference between each set of temperature control rollers 3. After the chemical fiber is wound around the multiple sets of temperature control rollers 3, it is stretched by the rotation of the temperature control rollers 3.

[0029] A forward-extending support plate 4 is fixed on the surface of the integrated frame 1. A longitudinal screw hole is provided at the front end of the support plate 4, and an adjusting screw 6 is threaded through the screw hole. The bottom of the adjusting screw 6 is provided with a handle, and the top of the adjusting screw 6 is movably connected to the top frame plate 5. When the adjusting screw 6 is rotated and moved along the screw hole, the top of the adjusting screw 6 pushes the top frame plate 5 to move, and a part of the top of the adjusting screw 6 is embedded in the top frame plate 5, so that the top of the adjusting screw 6 will not detach from the top frame plate 5.

[0030] The top frame plate 5 is rectangular in design, with adjustable slide cylinders 7 fixed at the bottom of each of the four corners of the rectangle. Slide holes corresponding to the adjustable slide cylinders 7 are provided on the side of the support plate 4. The height of the pressure roller 9 at the bottom of the adjustable slide cylinder 7 can be adjusted by sliding the adjustable slide cylinder 7 in the slide holes. When the temperature control roller 3 rotates, the pressure roller 9 presses the chemical fiber onto the temperature control roller 3. The pressure roller 9 can rotate by contact.

[0031] The adjusting slide cylinder 7 is hollow, with an assembly top block 12 fixed to the top wall of its cavity. A circular hole is provided on the bottom wall of the cavity, through which a roller support rod 8 is slidably connected. The top of the roller support rod 8 extends into the adjusting slide cylinder 7 and is fixed to an assembly bottom block 11. A conical spring 14 can be fitted between the assembly bottom block 11 and the assembly top block 12, with the larger end of the conical spring 14 fitting onto the assembly bottom block 11 and the smaller end fitting onto the assembly top block 12. The assembly bottom block 11 is frustoconical in shape to fit the shape of the larger end of the conical spring 14. A support rod connecting plate 10 is also fixed to the outer wall of the roller support rod 8. The support rod connecting plate 10 can slide longitudinally within the cavity of the adjusting slide cylinder 7. When the adjusting slide cylinder 7 moves down, the pressure roller part 9 connected to the bottom of the roller support rod 8 is attached to the surface of the temperature control roller 3. As the adjusting slide cylinder 7 continues to move down, the roller support rod 8 presses against the conical spring 14 and compresses the conical spring 14. The elastic force of the conical spring 14 provides a better pressing effect on the chemical fiber by the pressure roller part 9. At the same time, due to the progressive stiffness characteristics of the conical spring 14, the pressure roller part 9 is more sensitive to chemical fibers of different thicknesses, thereby improving the contact effect.

[0032] A curved plate-like structure, the top arc plate 15, is fixed to the side of the lower half of the roller support rod 8. Connecting side posts 16 are fixed to both ends of the pressure roller part 9, so that the connecting side posts 16 can be attached to the bottom of the top arc plate 15. The pressure roller part 9 is attached to the top of the temperature control roller 3, and the top of the pressure roller part 9 is connected to the roller support rod 8. Positioning holes 17 are opened on the surface of the roller support rod 8 and the connecting side posts 16. When the pressure roller part 9 is installed, the positioning holes 17 at the connecting side posts 16 and the roller support rod 8 are aligned. Finally, a screw is screwed into the positioning hole 17, so that the smooth front end of the screw extends into the hole at the connecting side post 16. The positioning hole 17 at the roller support rod 8 has threads that are compatible with the bolt. The hole at the connecting side post 16 is compatible with the smooth front end of the bolt, so that the bolt provides support for the connecting side post 16 after it is inserted, while allowing the connecting side post 16 to rotate freely.

[0033] A replacement window 13 is also provided on the side of the adjusting slide 7, in which the top arc plate 15 can be attached to the groove of the replacement window 13. The upper and lower walls of the groove of the replacement window 13 are provided with mounting plates, and the mounting plates are provided with screw holes, which correspond to the mounting holes on the surface of the top arc plate 15. The conical spring 14 can be replaced after the top arc plate 15 is removed, so that the conical spring 14 with insufficient durability can be replaced in a timely and quick manner.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A chemical fiber stretching device, comprising an integrated frame (1), a bottom groove plate (2) connected to the bottom of the integrated frame (1), and a temperature control roller (3) mounted on the surface of the integrated frame (1), characterized in that, Also includes: The pressure roller section (9) is attached to the top of the temperature control roller (3), and the top of the pressure roller section (9) is connected to the roller support rod (8); An adjusting slide (7) is sleeved on the outside of the roller support rod (8). A conical spring (14) is provided inside the cavity of the adjusting slide (7). The top of the roller support rod (8) and the top wall of the groove of the adjusting slide (7) are respectively fixed with an assembly bottom block (11) and an assembly top block (12) connected to the upper and lower parts of the conical spring (14).

2. The chemical fiber stretching device according to claim 1, characterized in that: The inner wall of the integrated frame (1) is fixed with a support plate (4), and the front end of the support plate (4) is provided with a screw hole, and an adjusting screw (6) is screwed into the screw hole.

3. The chemical fiber stretching device according to claim 2, characterized in that: The top of the adjusting screw (6) is movably connected to the top frame plate (5), and the bottom surfaces of the four bent parts of the top frame plate (5) are fixedly connected to the top of the adjusting slide cylinder (7).

4. The chemical fiber stretching device according to claim 3, characterized in that: The surface of the support plate (4) is provided with sliding holes that allow the adjustable slide cylinder (7) to slide longitudinally.

5. The chemical fiber stretching device according to claim 1, characterized in that: The two ends of the pressure roller (9) are fixed with connecting side inserts (16), and the side of the roller support rod (8) is fixed with a fitting top arc plate (15) that is in contact with the top of the connecting side inserts (16).

6. The chemical fiber stretching device according to claim 1, characterized in that: The roller support rod (8) and the connecting side insert (16) have positioning holes (17) on their surfaces.

7. The chemical fiber stretching device according to claim 1, characterized in that: The bottom of the adjusting slide (7) is provided with a round hole, and the surface of the roller support rod (8) is fixed with a support rod connecting plate (10) that slides along the groove of the adjusting slide (7).

8. The chemical fiber stretching device according to claim 1, characterized in that: The surface of the adjusting slide (7) is provided with a replacement window (13), and a top arc plate (15) is attached to the groove of the replacement window (13).

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