Cord fabric cutting device

Abstract

The utility model discloses a cord fabric cutting device. The cord fabric cutting device comprises a mounting bracket, the disc cutter is arranged on the A surface of the mounting bracket; and the cutting tool is arranged on the A surface of the mounting bracket, and the cutting edge of the cutting tool and the cutting edge of the disc tool are oppositely arranged and are on the same plane. The disc cutter and the cutting cutter are arranged, the cutting edge of the disc cutter and the cutting edge of the cutting cutter are arranged on the same plane, and the cutting edge of the cutting cutter faces the disc cutter, so that the cutting edge of the cutting cutter can exactly pass through a groove formed by extruding the cutting edge of the disc cutter on the curtain cloth; furthermore, the thickness of the cord fabric needing to be cut by the cutting tool is reduced, meanwhile, cord threads extruded to the two sides of the groove are avoided, and the cord fabric cutting qualification rate is increased; and by arranging the lifting piece for driving the disc cutter to extrude the curtain cloth, the capability of adapting to the curtain cloth with different thicknesses is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tire processing, and particularly relates to a cord fabric cutting device. Background Art

[0002] The cord fabric layer is one of the core structures of a pneumatic tire, and its main function is to provide the strength and stability of the tire. The cord fabric layer is composed of multiple layers of parallel cord yarns. Each layer of cord yarn is immersed in liquid rubber so that the cord yarn can be firmly combined with the rubber during the vulcanization process, and then a large cutting device is used to preform it to achieve the required size and shape.

[0003] However, the inventors of this application found in actual production that when using a large cutting device to cut the cord fabric layer, problems such as cord yarn jumping, partial non-cutting of the cord fabric, and uneven cutting edges of the cord fabric are likely to occur, which increases the defective rate of the cord fabric and wastes the cord fabric layer that does not meet the production requirements and is discarded after cutting. Summary of the Utility Model

[0004] In order to solve the problem of low qualified rate of the cord fabric cut by a large cutting device, the utility model provides a cord fabric cutting device, and the specific technical solution is as follows:

[0005] A cord fabric cutting device includes: a mounting bracket; a circular cutting tool disposed on the A surface of the mounting bracket; a cutting tool disposed on the A surface of the mounting bracket, and the cutting edge of the cutting tool is placed opposite to the cutting edge of the circular cutting tool and in the same plane.

[0006] Preferably, the plane where the cutting edge of the cutting tool and the cutting edge of the circular cutting tool are located is parallel to the A surface of the mounting bracket.

[0007] Preferably, the mounting bracket further includes a B surface, and the B surface is perpendicularly intersected with the A surface of the mounting bracket at a straight line.

[0008] Preferably, the cord fabric cutting device further includes a lifting member disposed on the B surface of the mounting bracket, the movement direction of the lifting member is parallel to the A surface of the mounting bracket and perpendicular to the B surface of the mounting bracket; a motor coaxial with the circular cutting tool; and an adjusting plate with one surface connected to the A surface of the mounting bracket and the other surface connected to one surface of the cutting tool, and at least one waist-shaped hole is formed in the adjusting plate, and the length direction of the waist-shaped hole is parallel to the movement direction of the lifting member; a conveying line and a cord fabric are further included, the length direction of the cord fabric is parallel to the movement direction of the conveying line, the tangential direction of the rotation of the cutting edge of the circular cutting tool is the same as the movement direction of the conveying line, and the cord fabric first passes through the circular cutting tool and then through the cutting tool.

[0009] From the above technical solutions, the utility model has the following beneficial effects:

[0010] The utility model reduces the thickness of the cord fabric that needs to be cut by the cutting tool and avoids the cord that is extruded to both sides of the groove by arranging a disk cutter and a cutting tool, and setting the cutting edges of the disk cutter and the cutting tool on the same plane, and the cutting edge of the cutting tool faces the disk cutter, so that the cutting edge of the cutting tool can just pass through the groove formed by the extrusion of the cutting edge of the disk cutter on the cord fabric, thereby improving the qualification rate of cord fabric cutting; and improves its own ability to adapt to cord fabrics of different thicknesses by arranging a lifting member that drives the disk cutter to extrude the cord fabric. Description of the Drawings

[0011] Figure 1 is a schematic structural diagram of an embodiment of the utility model;

[0012] Figure 2 is a cross-sectional view of the disk cutter of the utility model;

[0013] Figure 3 is a cross-sectional view at the cutting edge of the cutting tool of the utility model;

[0014] Figure 4 is a state diagram of the utility model installed on the conveyor line.

[0015] In the figure: 1. Motor, 2. Mounting bracket, 3. Lifting member, 4. Disk cutter, 5. Cutting tool, 6. Adjusting plate, 7. Conveyor line, 8. Cord fabric. Detailed Embodiment

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0017] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "inside", "outside", "above", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0018] According to common knowledge, in the tire processing workshop, the cord fabric 8 moves along with the conveyor line 7, and the arrangement direction of the cords in the cord fabric 8 is parallel to the moving direction of the conveyor line 7.

[0019] Such as Figure 1 and Figure 4As shown in the figure, an embodiment of the utility model includes a mounting bracket 2. The cross-section of the mounting bracket 2 is L-shaped. The inner surface of the bend of the mounting bracket 2 is the A surface of the mounting bracket 2, and the outer surface of the bend of the mounting bracket 2 but not opposite to the A surface of the mounting bracket 2 is the B surface of the mounting bracket 2. The A surface of the mounting bracket 2 is perpendicular to the B surface. The opposite surface of the A surface of the mounting bracket 2 is connected with a motor 1 by screws. A part of the output end of the motor 1 passing through the A surface of the mounting bracket 2 is fixedly connected with a disc cutter 4. The output end of the motor 1 drives the disc cutter 4 to rotate through a key. The middle surface of the cutting edge of the disc cutter 4 is parallel to the A surface of the mounting bracket 2.

[0020] Secondly, the A surface of the mounting bracket 2 is connected with an adjusting plate 6 by screws. The adjusting plate 6 is formed with four waist-shaped holes. The length direction of the waist-shaped holes is perpendicular to the B surface of the mounting bracket 2, so that the distance of the adjusting plate 6 relative to the B surface can be adjusted. One end of the adjusting plate 6 away from the B surface of the mounting bracket 2 is fixedly connected with a cutting tool 5. The middle surface of the cutting edge of the cutting tool 5 coincides with the middle surface of the cutting edge of the disc cutter 4, and the end of the cutting tool 5 with the cutting edge is close to the disc cutter 4, so that the cutting tool 5 can move along the movement track of the disc cutter 4 driven by the motor 1 on the curtain cloth 8.

[0021] In addition, the B surface of the mounting bracket 2 is connected with a lifting member 3 by screws. The lifting member 3 adopted in this embodiment is a cylinder, and an electric cylinder or other devices with an output end capable of performing telescopic movement can also be adopted. The movement direction of the output end of the lifting member 3 is perpendicular to the B surface of the mounting bracket 2, so that it can drive the mounting bracket 2, and then drive the disc cutter 4 to extrude the curtain cloth 8 on the conveying line 7 to form a groove, so that the extruded cord is extruded to both sides of the groove. As the conveying line 7 continues to convey the curtain cloth 8, the cutting edge of the cutting tool 5 can cut the curtain cloth 8 along the formed groove and avoid the cord, avoiding cord jumping and improving the cutting quality of the curtain cloth 8.

[0022] Figure 2 It is a cross-sectional view of the cutting edge part of the disc cutter 4 of the utility model. The cutting edge part of the disc cutter 4 is composed of two line segments with an included angle of 15°. It is responsible for pressing out a groove on the curtain cloth 8 and extruding the cord to both sides of the groove.

[0023] Figure 3 It is a cross-sectional view of the cutting edge part of the cutting tool 5 of the utility model. The cutting edge part of the cutting tool 5 is composed of two line segments with an included angle of 20°. It is responsible for cutting the curtain cloth 8 along the groove extruded by the disc cutter 4, improving the cutting quality of the curtain cloth 8 and reducing the defective rate of cutting the curtain cloth 8.

[0024] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0025] The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. A cord cutting device, characterized in that: include: Mounting brackets (2); A disc cutter (4) arranged on surface A of the mounting bracket (2); A cutting tool (5) is arranged on the A surface of the mounting bracket (2); the cutting tool (5) and the cutting blade of the disc cutting tool (4) are placed opposite to each other and on the same plane.

2. The cord cutting device according to claim 1, characterized in that: The planes on which the cutting blade of the cutting tool (5) and the cutting blade of the disc tool (4) are located are parallel to the surface A of the mounting bracket (2).

3. The cord cutting device according to claim 1, characterized in that: The mounting bracket (2) further comprises a B surface, wherein the B surface intersects with the A surface of the mounting bracket (2) perpendicularly at a straight line.

4. The cord cutting device according to claim 3, characterized in that: It also comprises a lifting member (3) arranged on the B surface of the mounting bracket (2), wherein the movement direction of the lifting member (3) is parallel to the A surface of the mounting bracket (2) and perpendicular to the B surface of the mounting bracket (2).

5. The cord cutting device according to claim 1, characterized in that: The cross section of the blade portion of the circular cutter (4) is composed of line segments with an included angle of 15°±5°.

6. The cord cutting device according to claim 1, characterized in that: The cross section of the blade portion of the cutting tool (5) is composed of line segments with an angle of 20°±5°.

7. The cord cutting device according to claim 4, characterized in that: Also includes: a motor (1) coaxial with the disc cutter (4); and An adjustment plate (6) is connected to the A surface of the mounting bracket (2) on one side, and the other side of the adjustment plate (6) is connected to one side of the cutting tool (5), and the adjustment plate (6) is formed with at least one waist hole, the length direction of the waist hole is parallel to the movement direction of the lifting member (3).

8. The cord cutting device according to claim 1, characterized in that: It also includes a conveyor line (7) and a curtain (8), wherein the length direction of the curtain (8) is parallel to the movement direction of the conveyor line (7), the tangential direction of the rotation of the blade of the disc cutter (4) is the same as the movement direction of the conveyor line (7), and the curtain (8) first passes through the disc cutter (4) and then passes through the cutting tool (5).

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