Cutter head of chemical fiber cut-off machine

Abstract

According to the cutter head of the chemical fiber cut-off machine, an upper cutter rest and a lower cutter rest are oppositely arranged and fixed through six connecting ribs with kidney-shaped cross sections, the structure is simplified, the weight is reduced, an upper cutter head gland and a lower cutter head gland are fixed through bolts, blades are protected, and stability is enhanced. A cutter bar is omitted, smooth discharge of cut chemical fiber tows is guaranteed, unsmooth tow discharge is avoided, production efficiency is remarkably improved, the thickness of the blade is increased, cutter breakage is effectively reduced, and maintenance cost is reduced. The cutter head is simple in structure, smooth in silk discharging, high in durability and suitable for production requirements of various chemical fiber cut-off machines.

Description

TECHNICAL FIELD

[0001] The utility model relates to a chemical fiber cutting equipment technical field, concretely to a chemical fiber cutting machine cutter head. BACKGROUND

[0002] Chemical fiber cutting cutter head is a component used for cutting the tow in the chemical fiber equipment, and it is mainly used for cutting the continuous chemical fiber tow into short fibers of the required length to meet the needs of subsequent processing or use. The working principle of the chemical fiber cutting cutter head is to cut the chemical fiber tow through the rotation of the blade and the compression of the compression wheel. In work, the tow is introduced into the gap between the cutter head and the compression wheel, and the blade cuts the tow as the cutter head rotates. In the design of the traditional chemical fiber cutting machine cutter head, the rear of the blade is usually provided with a blade rod, as shown in Figure 4 , these blade rods not only increase the weight and complexity of the cutter head, but more importantly, they occupy the space where the tow naturally escapes after being cut, resulting in poor outflow of the tow and affecting production efficiency and product quality. Due to the existence of the blade rod in the design of the traditional chemical fiber cutting machine cutter head, the gap between the blades is relatively wide, which also leads to thicker cutting of the traditional cutter head, and finer cutting effect cannot be obtained, which has defects. SUMMARY

[0003] In view of the problems existing in the prior art, the utility model provides a chemical fiber cutting machine cutter head, which comprises: an upper tool holder and a lower tool holder, the upper tool holder and the lower tool holder are arranged oppositely, a connecting rib is fixedly installed equidistantly between the upper tool holder and the lower tool holder, and the connecting rib is arranged at the inner ring position of the upper tool holder and the lower tool holder; upper and lower corresponding blade grooves are equidistantly formed in the outer rings of the upper tool holder and the lower tool holder, and a cutting blade is installed in the blade groove.

[0004] As a preferred scheme of the utility model, a gland is installed on the outer side of the upper tool holder and the lower tool holder, and the gland is used for protecting the cutting blade.

[0005] As a preferred scheme of the utility model, the gland comprises an upper cutter head gland, and the upper cutter head gland is fixedly installed on the outer side of the upper tool holder through a bolt.

[0006] As a preferred scheme of the utility model, the gland comprises a lower cutter head gland, and the lower cutter head gland is fixedly installed on the outer side of the lower tool holder through a bolt.

[0007] As a preferred scheme of the utility model, the number of the connecting ribs is equidistantly set to six, and the cross section of the connecting rib is a waist round structure, which not only ensures sufficient connecting strength, but also reduces the use of materials and the weight.

[0008] As a preferred scheme of the utility model, the thickness of the cutting blade is set to 1.9mm, which ensures the strength and durability of the blade.

[0009] With the above technical scheme, the utility model has the following beneficial effects:

[0010] 1. By canceling the cutter bar design, it ensures that the cut fiber tow can be smoothly discharged, avoids the problem of poor fiber discharge, and significantly improves the production efficiency.

[0011] 2. Increase the thickness of the blade to 1.9mm, effectively improve the compression resistance and service life of the blade, reduce the frequency of replacing the blade, and reduce the maintenance cost.

[0012] 3. The design of six connecting ribs ensures the stability of the cutter head, simplifies the structure, reduces the weight, and is conducive to the long-term stable operation of the equipment.

[0013] 4. Through the cutter head design without cutter bar, the gap between the blades can be made narrower, which can cut ultra-short fibers, so as to realize finer cutting effect.

[0014] In summary, the cutter head of the fiber cutting machine provided by the scheme has the advantages of simple structure, smooth fiber discharge, high durability, etc., and is suitable for the production needs of various fiber cutting machines. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the overall structure of the utility model;

[0016] Figure 2 It is a right view of the overall structure of the utility model;

[0017] Figure 3 It is an enlarged view of the local structure of the utility model;

[0018] Figure 4 It is a cutter head with a cutter bar in the prior art.

[0019] In the figure: 1, upper cutter head gland; 2, lower cutter head gland; 3, upper cutter holder; 4, lower cutter holder; 5, cutting blade; 6, connecting rib; 7, cutter groove. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments.

[0021] Example 1

[0022] As Figures 1 to 3 shown, the specific embodiment of the cutter head of the fiber cutting machine comprises: an upper cutter holder 3, a lower cutter holder 4, a connecting rib 6, a cutting blade 5, an upper cutter head gland 1 and a lower cutter head gland 2,

[0023] Upper knife holder 3 and lower knife holder 4: oppositely arranged, forming the main structure of the cutter head, the outer circle of the upper knife holder 3 and the lower knife holder 4 is equidistantly provided with corresponding upper and lower knife grooves 7 for installing the cutting blade 5;

[0024] Connecting rib 6: six connecting ribs 6 are equidistantly arranged at the inner circle position of the upper knife holder 3 and the lower knife holder 4, and the upper knife holder 3 and the lower knife holder 4 are firmly connected together by welding or other fixing modes; the cross section of the connecting rib 6 is designed as a waist round structure, which not only ensures the connecting strength, but also reduces the weight;

[0025] Cutting blade 5: made of high hardness alloy material with a thickness of 1.9mm, installed in the knife groove 7 of the upper knife holder 3 and the lower knife holder 4, and the sharp edge of the cutting blade 5 is used for cutting the chemical fiber tow;

[0026] Upper cutter head cover 1 and lower cutter head cover 2: respectively installed on the outer side of the upper knife holder 3 and the lower knife holder 4, fixed by bolts, and the design of the cover not only protects the cutting blade 5 from external interference, but also enhances the overall stability of the cutter head.

[0027] The working principle of the utility model: in the working process of the chemical fiber cutting machine, the chemical fiber tow is sent into the working area of the cutter head, that is, the space between the upper knife holder 3 and the lower knife holder 4, with the operation of the chemical fiber cutting machine, the cutter head starts to rotate, the cutting blade 5 contacts the chemical fiber tow in the rotating process, and the chemical fiber tow is cut into short fibers of a predetermined length by using the sharp edge; since the knife rod in the traditional design is cancelled in the embodiment, the chemical fiber tow can be smoothly discharged from the knife blades after cutting, avoiding the problem of poor fiber discharge, at the same time, the thickness of the cutting blade 5 is increased to 1.9mm, which significantly improves the compression resistance and durability, effectively reduces the occurrence of broken knife phenomenon, in the rotating process of the cutter head, the connecting rib 6 not only fixes the upper knife holder 3 and the lower knife holder 4, but also ensures the overall rigidity and stability of the cutter head, and the upper cutter head cover 1 and the lower cutter head cover 2 further enhance the protection performance of the cutter head, preventing the damage or falling of the blade.

[0028] The components in the text are all general standard components or components known to those skilled in the art, the structure and principle of which can be known by those skilled in the art through technical manuals or through conventional experimental methods, so no more will be recorded here.

[0029] Although the specific embodiments of the utility model have been described in detail above, the utility model is not limited to the above embodiments, and various changes can be made within the knowledge range of ordinary technical personnel in the art without departing from the purpose of the utility model, and the modifications or deformations without creative labor are still within the protection range of the utility model.

Claims

1. A cutter disc for a chemical fiber cutting machine, characterized in that, include: The upper tool holder (3) and the lower tool holder (4) are arranged opposite to each other. Connecting ribs (6) are fixedly installed at equal intervals between the upper tool holder (3) and the lower tool holder (4). The connecting ribs (6) are located in the inner ring of the upper tool holder (3) and the lower tool holder (4). The outer ring of the upper tool holder (3) and the lower tool holder (4) is provided with corresponding upper and lower knife grooves (7) at equal intervals. Cutting blades (5) are installed in the knife grooves (7).

2. The cutter head of a chemical fiber cutting machine according to claim 1, characterized in that: The upper blade holder (3) and the lower blade holder (4) are fitted with pressure caps on their outer sides, which are used to protect the cutting blade (5).

3. The cutter head of a chemical fiber cutting machine according to claim 2, characterized in that: The cover includes an upper cutter head cover (1), which is fixedly installed on the outside of the upper cutter holder (3) by bolts.

4. The cutter head of a chemical fiber cutting machine according to claim 2, characterized in that: The pressure cover includes a lower cutter head pressure cover (2), which is fixedly installed on the outside of the lower cutter holder (4) by bolts.

5. The cutter head of a chemical fiber cutting machine according to claim 1, characterized in that: The number of connecting ribs (6) is set to six at equal intervals, and the cross-section of the connecting ribs (6) is an oval structure.

6. The cutter head of a chemical fiber cutting machine according to claim 1, characterized in that: The blade thickness of the cutting blade (5) is set to 1.9 mm.

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