CN219793236U - Chemical fiber roller drafting machine - Google Patents

Abstract

The utility model relates to the technical field of draw frames, specifically a chemical fiber roller drafting draw frame, which includes a support frame. The inner wall of the support frame is provided with a plurality of roller components for lengthening and thinning chemical fiber bundles. The utility model uses the elasticity of the upper roller, the lower roller and the elastic block to make the fiber bundle appear in a wavy shape and be compressed in the gap between the upper roller and the lower roller, and then passes through the lower roller and the upper roller. The roller exerts traction in the direction of the fiber axis, reducing the stress on the surface of the fiber bundle that causes fluffing, thereby preventing stress concentration in the fiber during stretching and causing fiber breakage. At the same time, the elastic wave-like compression method can increase the tensile force on the fiber bundle. Prevent fiber bundles from being extracted.

Description

Chemical fiber roller drafting machine

Technical field

The utility model relates to the technical field of draw frames, specifically a chemical fiber roller draft frame.

Background technique

The draw frame can draw and lengthen fiber aggregates (such as slivers, rovings, etc.) regularly. Generally, draw frames are divided into two categories according to the form of the drafting mechanism: roller drafting machines and needle carding machines.

The prior art publication number is CN104109916A. The drafting device of a roller drafting frame uses multiple rollers and top rollers to drive the moving speed of different parts of the fiber bundle, and uses the speed difference to elongate the fiber bundle. However, the rollers and top rollers The roller uses friction to drive the fiber bundle to move, that is, the roller and the top roller compress the fiber bundle, and then apply friction force on the surface of the fiber bundle and drive the fiber to move, and the roller drives the top roller to move by driving the fiber bundle to move, making the fiber Opposite friction forces are formed on the upper and lower surfaces of the bundle, causing damage to the surface of the fiber bundle, which in turn causes stress concentration at the damaged location when the fiber bundle is stretched.

Therefore, a chemical fiber roller drafting frame is needed to solve the problem of surface damage when the pulling fiber bundle moves.

Utility model content

In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a chemical fiber roller draft frame, which can realize the lengthening and thinning of the chemical fiber bundle by driving the chemical fiber bundle at different moving speeds through two adjacent roller components. At the same time, reinforced components are used to increase the traction effect of the roller components on the chemical fiber bundles.

The above technical objectives of the present invention are achieved through the following technical solutions: the chemical fiber roller drafting frame includes a support frame, the inner wall of the support frame is provided with a plurality of roller components for lengthening and thinning the chemical fiber bundles; The roller component is also provided with a reinforcing component that increases the connection effect between the chemical fiber bundles and the roller component.

By adopting the above technical solution, the reinforcing components are used to increase the connection strength and stability between the roller components and the chemical fiber bundles, and then the different rotation speeds of two adjacent roller components are used to lengthen and thin the chemical fiber bundles.

The utility model is further configured such that: the roller component includes two rotating shafts that are rotatably connected to the inner wall of the support frame; upper rollers and lower rollers are respectively fixed on the roller surfaces of the rotating shafts; The rollers are located on both sides of the chemical fiber bundle and compress the chemical fiber bundle.

By adopting the above technical solution, the upper roller and the lower roller are used to compress the chemical fiber bundles, and then the motor drives the rotating shaft under the lower roller to rotate, and then the rotating shaft drives the lower roller to rotate, thereby driving the chemical fiber bundles to move, and then use The roller component drives the fiber bundles to move at different speeds at each position, thereby lengthening and thinning the fiber bundles.

The utility model is further configured such that: the reinforcing component includes a plurality of elastic blocks fixed on the roller surface of the upper roller and the lower roller, and the elastic blocks are made of rubber material.

By adopting the above technical solution, when the upper roller and the lower roller compress the chemical fiber bundle, the elastic elastic block is used to increase the contact area between the chemical fiber bundle and the elastic block, increase the friction force, and prevent the local surface of the chemical fiber bundle from appearing larger. Friction causes fluff on the surface of the fiber bundle.

The utility model is further configured such that: the elastic blocks are evenly arranged around the roller surface, and the elastic blocks on the lower roller and the elastic blocks on the upper roller mesh with each other, and the elastic blocks are oriented from the roller surface. The outer edge gradually shrinks.

By adopting the above technical solution, the meshed elastic blocks are used to make the fiber bundles appear in an undulating wave shape, and then the elastic blocks are used to exert tensile force on the fiber bundles in the axial direction, thereby reducing the tensile force on the surface of the fiber bundles and increasing product quality.

The utility model is further configured such that the upper roller and the lower roller are made of rubber material with elasticity greater than that of the elastic block.

By adopting the above technical solution, when the upper roller and the lower roller compress the fiber bundle, the elastic block, the upper roller, and the lower roller all deform, and the fiber bundle moves along the surface of the elastic block and the surface of the upper roller and the lower roller in the gap between the elastic blocks. It shows a wavy shape, and then uses the upper roller, lower roller and elastic block to exert pulling force on the fiber bundle in the axial direction to prevent the fiber bundle surface from being damaged.

The utility model is further configured such that the elastic block is provided with a plurality of through grooves in a direction parallel to the roller end surface.

By adopting the above technical solution, the through grooves are used to accommodate the fiber bundles to prevent the fiber bundles from being concentrated on the elastic block, further increasing the traction effect on the fiber bundles and increasing the tensile quality.

The utility model is further configured as follows: a support block is fixed on the inner wall of the support frame in the direction of the entrance of the chemical fiber bundle, and a plurality of guide posts arranged along the axis of the rotation axis are fixed on the outer surface of the support block.

By adopting the above technical solution, the support block is used to evenly split the fiber bundle into multiple parts, which is beneficial to pulling up each small fiber bundle and preventing fiber accumulation causing uneven stretching.

To sum up, the present utility model has the following beneficial effects:

The elasticity of the upper roller, lower roller, and elastic block is used to make the fiber bundle appear wavy and compressed in the gap between the upper roller and the lower roller, and then the lower roller and the upper roller exert traction in the direction of the fiber axis to reduce the stress on the surface of the fiber bundle and It causes fluffing, thereby preventing stress concentration in the fiber during stretching and causing fiber breakage. At the same time, the elastic wave-like compression method can increase the tensile force on the fiber bundle and prevent the fiber bundle from being pulled out.

Description of the drawings

Figure 1 is a schematic structural diagram of the utility model;

Figure 2 is a schematic cross-sectional view of the utility model;

Figure 3 is a schematic structural diagram of position A in Figure 2 of the present invention;

Figure 4 is a schematic structural diagram of the support block in the present utility model;

Figure 5 is a schematic structural diagram of the elastic block of the utility model.

In the picture:

11. Support frame; 12. Rotation axis; 13. Upper roller; 14. Lower roller; 15. Elastic block; 16. Guide pillar; 17. Support block; 18. Through slot.

Detailed ways

The present utility model will be described in detail below with reference to the drawings in the embodiments of the present utility model.

Example:

The chemical fiber roller draft frame, as shown in Figures 1 to 3, includes a support frame 11. The inner wall of the support frame 11 is provided with a plurality of roller components for lengthening and thinning the chemical fiber bundles. The roller components are also provided with additional It is a component that strengthens the connection effect between chemical fiber bundles and roller components. The roller components include two rotating shafts 12 that are rotatably connected to the inner wall of the support frame 11. The upper roller 13 and the lower roller 14 are respectively fixed on the roller surface of the rotating shaft 12. The upper roller 13, The lower rollers 14 are respectively located on both sides of the chemical fiber bundles and compress the chemical fiber bundles. The reinforcing components include a plurality of elastic blocks 15 fixed on the roller surfaces of the upper roller 13 and the lower roller 14, and the elastic blocks 15 are made of rubber material. .

As shown in Figure 3, the elastic blocks 15 are evenly arranged around the roller surface, and the elastic blocks 15 on the lower roller 14 and the elastic blocks 15 on the upper roller 13 mesh with each other, and the elastic blocks 15 are edges that gradually shrink outward from the roller surface. tower.

As shown in Figure 5, the upper roller 13 and the lower roller 14 are made of rubber material with greater elasticity than the elastic block 15. The elastic block 15 has a plurality of through grooves 18 in a direction parallel to the roller end surfaces.

As shown in FIG. 4 , a support block 17 is fixed on the inner wall of the support frame 11 in the direction of the entrance of the chemical fiber bundle. A plurality of guide posts 16 arranged along the axis of the rotation shaft 12 are fixed on the outer surface of the support block 17 .

The fiber bundle first passes through the gap between two adjacent guide posts 16 on the support block 17 and is split into small fiber bundles. The small fiber bundle then passes through the gap in the two roller components, that is, passes through the upper roller. The gap between the upper roller 13 and the lower roller 14 uses the elasticity of the upper roller 13, the lower roller 14, and the elastic block 15 to make the upper roller 13, the lower roller 14, and the elastic block 15 closely fit in the meshing position, and the fiber bundles move along the elastic block. 15, the outer surfaces of the upper roller 13 and the lower roller 14 in the gap between the two adjacent elastic blocks 15 are wavy and compressed, which increases the stress-bearing area of the fiber bundle. When the fiber bundle is driven by the lower roller 14, it can The traction force is applied in the axis direction of the fiber bundle, and at the same time, the elastic blocks 15 on the upper roller 13 and the lower roller 14 are engaged with each other to directly drive the rotation of the upper roller 13 through the rotation of the lower roller 14 to prevent the lower roller 14 and the upper roller 13 from being on the surface of the fiber bundle. Staggered friction is formed, which increases the traction force of the fiber bundle while reducing the damage to the surface of the fiber bundle caused by the friction, thereby increasing the product quality. After using the guide pillar 16 to split a large portion of the fiber bundle, the passage on the elastic block 15 is used. The groove 18 accommodates small portions of fiber bundles, and evenly distributes the small portions of fiber bundles on the elastic block 15, which not only facilitates arrangement, but also prevents single fibers from breaking due to greater stress during stretching, and also prevents the cross-sectional area of the fiber bundles. If it is too large, the upper roller 13, the lower roller 14, and the elastic block 15 cannot make the fiber bundle show a wavy shape, increase the traction effect, and prevent the fibers inside the fiber bundle from being subjected to a pulling force that is less than the pulling force of the peripheral fiber bundle, which will lead to inconsistent stretching effects, and further It can increase the effect of lengthening and slimming and increase product quality.

The above are only the preferred embodiments of the present utility model. The protection scope of the present utility model is not limited to the above-mentioned embodiments. All technical solutions falling under the idea of the present utility model belong to the protection scope of the present utility model. It should be pointed out that for those of ordinary skill in the art, several improvements and modifications may be made without departing from the principles of the present utility model, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims (5)

1. Chemical fiber roller draft frame, including a support frame (11), characterized in that: the inner wall of the support frame (11) is provided with a plurality of roller parts for lengthening and thinning the chemical fiber bundles. A reinforcing component is also provided to increase the connection effect between the chemical fiber bundles and the roller component. The roller component includes two rotation shafts (12) that are rotationally connected to the inner wall of the support frame (11). The rotation shaft (12) An upper roller (13) and a lower roller (14) are respectively fixed on the roller surface. The upper roller (13) and the lower roller (14) are respectively located on both sides of the chemical fiber bundle and compress the chemical fiber bundle. The reinforcing component includes a plurality of elastic blocks (15) fixed on the roller surfaces of the upper roller (13) and the lower roller (14), and the elastic blocks (15) are made of rubber material. 2. The chemical fiber roller drafting frame according to claim 1, characterized in that: the elastic blocks (15) are evenly arranged around the roller surface, and the elastic blocks (15) on the lower roller (14) 15) Engage with the elastic block (15) on the upper roller (13), and the elastic block (15) is a prism that gradually shrinks outward from the roller surface. 3. The chemical fiber roller drafting frame according to claim 1, characterized in that: the upper roller (13) and the lower roller (14) are rubber materials with greater elasticity than the elastic block (15). . 4. The chemical fiber roller drafting frame according to claim 1, characterized in that the elastic block (15) is provided with a plurality of through grooves (18) in a direction parallel to the roller end surface. 5. The chemical fiber roller drafting machine according to claim 1, characterized in that: a support block (17) is fixed on the inner wall of the support frame (11) in the direction of the entrance of the chemical fiber bundle, and the support block (17) A plurality of guide posts (16) arranged along the axial direction of the rotation shaft (12) are fixed on the outer surface.