CN213859575U

CN213859575U - Fiber fabric cutting tool bit

Info

Publication number: CN213859575U
Application number: CN202022351417.6U
Authority: CN
Inventors: 辛朝波
Original assignee: Langfang Feize Composite Technology Co ltd
Current assignee: Langfang Feize Composite Technology Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-08-03
Anticipated expiration: 2030-10-21

Abstract

The utility model provides a fiber fabric cutting tool bit, which comprises a tool rest, a tool shaft arranged on the tool rest and an isolation bracket positioned below the tool rest; the cutter shaft is provided with a blade; the isolation bracket is provided with an isolation part and a connecting part fixedly connected with the tool rest; the isolating part is provided with a blade through hole, the bottom end of the blade extends out of the blade through hole, and brushes are arranged at the edge of the blade through hole. The utility model provides a pair of fabric cuts tool bit, simple structure can avoid cutting in-process fibre and be drawn into the tool bit, and the manpower and the time cost of clearance or change tool bit have been saved to the winding arbor, have guaranteed production quality.

Description

Fiber fabric cutting tool bit

Technical Field

The utility model relates to a cutting tool technical field, concretely relates to fiber fabric cuts tool bit.

Background

In the process flow of the composite material forming, the cutting of raw materials is a main process. To improve the cutting accuracy and speed, automatic blanking equipment has been widely used in this process. The raw materials of the composite material mainly include prepreg or fiber fabric. The prepreg is a unidirectional fiber tape or fabric pre-impregnated with resin.

Because the fiber is impregnated with the resin, the fiber tows have certain viscosity and are in a bundling shape, and the fiber is not easy to be brought out by a cutter in the cutting process. For the fiber fabric, because resin is not impregnated, the fiber tows have no viscosity, and in the cutting process, the fibers which are consistent with the advancing direction of the cutter are easily taken out of the cut of the fiber fabric by the cutter, and then are wound into the cutter head to wind the cutter shaft, so that the friction of the cutter shaft is increased, the overload of a motor is formed, the cutting quality and efficiency are influenced, and the time and the labor are consumed when the machine is periodically stopped and cleaned; in severe cases, the cutter shaft is locked, the motor is burnt out, and equipment loss is caused.

In the prior art, in order to reduce the problem that fibers are wound into a cutter head in the cutting process, a plastic film or kraft paper is usually covered on the surface layer of the fiber fabric. The scheme solves the problem that the fibers are rolled into the cutter head to cause the winding of the cutter shaft to a certain extent, but needs to use plastic films or kraft paper on a large scale, which undoubtedly increases the material cost of the composite material; in addition, during the cutting process, small pieces of plastic film or kraft paper may be generated, which are foreign materials or impurities introduced to the composite material, and additional process quality checks increase labor and time costs.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, it would be desirable to provide a fabric cutting head that is simple in construction and prevents fibers from being caught in the head during cutting.

The utility model provides a fiber fabric cutting tool bit, which comprises a tool rest, a tool shaft arranged on the tool rest and an isolation bracket positioned below the tool rest;

the cutter shaft is provided with a blade;

the isolation bracket is provided with an isolation part and a connecting part fixedly connected with the tool rest; the isolating part is provided with a blade through hole, the bottom end of the blade extends out of the blade through hole, and hairbrushes are arranged at the edge of the blade through hole.

According to the technical scheme that this application embodiment provided, keep apart the support and be U type structure, connecting portion are located the isolation part both ends, be equipped with the sliding hole on the connecting portion, the knife rest both ends are equipped with the screw hole, connecting portion with knife rest slidable fixed connection.

According to the technical scheme that this application embodiment provided, install the brush apron on the isolation support, the brush apron be used for with the brush is fixed to be compressed tightly.

According to the technical scheme that this application embodiment provided, brush apron with the isolation support can dismantle fixed connection, be equipped with the blade on the brush apron and dodge the hole.

According to the technical scheme provided by the embodiment of the application, the distance from the two sides of the blade to the edge of the through hole of the blade is 2-4 mm.

According to the technical scheme provided by the embodiment of the application, the length of the brush extending out of the blade through hole is 2-4 mm.

The utility model has the advantages that: based on the technical scheme recorded in the utility model, when the blade is cut, the blade through hole and the hairbrush on the isolation bracket can effectively isolate the fiber, avoid the fiber from being rolled into the cutter head, wind the cutter shaft and protect the blade in a normal working state; the isolated fibers can be quickly and simply cleaned, so that the labor and time cost is saved; in the whole cutting process, a layer of plastic film or kraft paper does not need to be additionally covered on the surface layer of the fiber fabric, so that the corresponding material cost is reduced; foreign matters or impurities such as plastic films or kraft paper scraps cannot be introduced in the whole cutting process, and the product quality of the final composite material is ensured.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural view of a fiber fabric cutting tool bit provided by the present invention;

FIG. 2 is a schematic structural view of the spacer 5 shown in FIG. 1;

reference numbers in the figures:

1. a tool holder; 2. a cutter shaft; 3. an isolation support; 4. a blade; 5. an isolation section; 6. a connecting portion; 7. a blade through hole; 8. a brush; 9. brush cover plate

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example 1

Please refer to fig. 1, which is a cutting head for cutting fiber fabric according to the present invention, comprising a tool rest 1, a knife shaft 2 installed on the tool rest 1, and an isolation support 3 located below the tool rest 1;

the cutter shaft 2 is provided with a blade 4;

the isolation bracket 3 is provided with an isolation part 5 and a connecting part 6 fixedly connected with the tool rest 1; blade through-hole 7 has been seted up to isolation portion 5, 4 bottom of blade stretch out blade through-hole 7, the brush 8 has been arranged at 7 edges of blade through-hole.

Specifically, the length of the blade through hole 7 is 10-15mm greater than the maximum chord length of the partition 5 tangent to the blade 4.

Specifically, the brush is made of plastic.

The working principle is as follows: when the device normally works, the bottom end of the blade 4 extends out of the blade through hole 7, and because the hairbrush 8 is arranged at the edge of the blade through hole 7, the hairbrush 8 can be directly isolated at the outer side of the blade through hole 7, so that even if a small fiber is generated in the cutting process, the hairbrush can be further isolated through the edge of the blade through hole 7, the fiber is prevented from being drawn into a cutter head, and the cutter shaft is wound, so that the working efficiency is improved.

In an embodiment of the isolation support 3, the isolation support 3 is a U-shaped structure, the connecting portion 6 is located at two ends of the isolation portion 5, the connecting portion 6 is provided with a sliding hole, two ends of the tool holder 1 are provided with threaded holes, and the connecting portion 6 is slidably and fixedly connected with the tool holder 1.

Specifically, the connecting portion 6 and the tool holder 1 are fastened and fixed by a fastening member, such as a screw or a bolt. The fastener penetrates through the sliding hole and is tightly connected with the threaded hole, the distance between the isolation support 3 and the bottom of the cutter rest 1 can be adjusted by adjusting the position of the fastener on the sliding hole, and the length of the blade 4 extending out of the blade through hole 7 is further controlled so as to adapt to cutting of fiber fabrics with different specifications and thicknesses.

In an embodiment of the isolation bracket 3, a brush cover plate 9 is installed on the isolation bracket 3, and the brush cover plate 9 is used for fixing and pressing the brush 8 to prevent the brush 8 from falling. Specifically, the brush cover plate 9 may be made of metal.

In an embodiment of the brush cover plate 9, the brush cover plate 9 and the isolation bracket 3 are detachably and fixedly connected, and the brush cover plate 9 is provided with a blade avoiding hole.

Specifically, an assembly hole can be formed in the isolation bracket 3, and the isolation bracket 3 and the brush cover plate 9 can be detachably and fixedly connected through a screw rod, so that a brush can be conveniently installed and replaced; the blade avoidance hole is used for avoiding the blade 4; preferably, the blade avoiding hole has a size equivalent to that of the blade through hole in the isolating bracket 3, so that the edges of the two holes coincide during assembly.

Wherein, in the preferred embodiment of the blade through hole 7, the distance from the two sides of the blade 4 to the edge of the blade through hole 7 is 2-4 mm. If the blade 4 is too close to the blade through hole 7, the isolating bracket 3 is abraded due to shaking of the blade 4 during cutting; meanwhile, the blade 4 is prevented from being too far away from the blade through hole 7, so that the fiber yarns generated during cutting are prevented from being wound into the blade and wound on the cutter shaft.

Wherein, in the preferred embodiment of the brush 8, the length of the brush 8 extending out of the blade through hole 7 is 2-4 mm. Preferably, the brush 8 just contacts with the surface of the blade 4, so as to prevent fine fiber filaments generated by cutting from entering the cutter shaft 2 through the blade through hole 7.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. The utility model provides a fabric cuts tool bit which characterized in that: comprises a knife rest (1), a knife shaft (2) arranged on the knife rest (1) and an isolation bracket (3) positioned below the knife rest (1);

the cutter shaft (2) is provided with a blade (4);

the isolation support (3) is provided with an isolation part (5) and a connecting part (6) fixedly connected with the tool rest (1); blade through-hole (7) have been seted up in isolation portion (5), blade (4) bottom is stretched out blade through-hole (7), brush (8) have been arranged at blade through-hole (7) edge.

2. The fiber fabric cutting head of claim 1, wherein: keep apart support (3) and be U type structure, connecting portion (6) are located keep apart portion (5) both ends, be equipped with the sliding hole on connecting portion (6), knife rest (1) both ends are equipped with the screw hole, connecting portion (6) with knife rest (1) slidable fixed connection.

3. The fiber fabric cutting head of claim 1, wherein: the isolating support (3) is provided with a brush cover plate (9), and the brush cover plate (9) is used for fixing and pressing the brush (8).

4. The fiber fabric cutting head of claim 3, wherein: the brush cover plate (9) and the isolation support (3) are detachably and fixedly connected, and a blade avoiding hole is formed in the brush cover plate (9).

5. The fiber fabric cutting head of claim 1, wherein: the distance from the two sides of the blade (4) to the edge of the blade through hole (7) is 2-4 mm.

6. The fiber fabric cutting head of claim 1, wherein: the length of the brush (8) extending out of the blade through hole (7) is 2-4 mm.