Cord fabric cutting device

Abstract

The utility model discloses a cord fabric cutting device which comprises a cutting table, a cutting base is fixedly installed on the upper surface of the cutting table, placing grooves which are symmetrically distributed are formed in the surfaces of the two sides of the cutting table, rotating rods are installed on the inner walls of the two sides of each placing groove through bearings, and conveying rollers are fixedly connected to the outer surfaces of the rotating rods in a sleeved mode. One end of the rotating rod penetrates through and extends to the front face of the cutting table, by means of the automatic feeding device, constant-speed feeding and cutting of cord fabrics are achieved automatically, damage to the cord fabrics during feeding is avoided, the quality after cutting is improved, the automatic feeding device is suitable for cutting of the cord fabrics with different thicknesses, the production efficiency is improved, and the production cost is reduced. And the cutting practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tire cord fabrics, in particular to a cord fabric cutting device. Background Art

[0002] Tire cord fabric is the skeleton material of the tire, which is divided into two types: weft cord fabric and non-weft cord fabric. The former is usually woven by a machine with thick and strong cords as warp and thin and weak cords as weft. The warp bears almost all the load of the tire body, and the weft is only used to connect the warp to make it evenly arranged. The latter is a cord fabric without weft. The main requirements for the cord fabric are high strength, fatigue resistance, low elongation, good heat resistance and stability, and good adhesion to rubber. The fiber materials used for the cord include cotton, nylon, polyester, rayon and steel wire. The tire production industry knows that the cloth cutting machine is an important equipment for cutting cord fabric in the tire production process. The traditional cloth cutting machine has only one disc blade. After cutting a stroke, the disc blade must be lifted and returned to the starting position with the help of the stroke adjustment cylinder, and then the knife is dropped again to cut the cloth for the next stroke. In the reciprocating action, both the knife drop and the knife lift are required, and the process of lifting the knife back to the starting position is an ineffective consumption. The cloth cutting efficiency of this cloth cutting machine is low.

[0003] For example, a tire cord cutting device disclosed in a Chinese patent document (publication number: CN212560882U) drives the tire cord to move to the right by inserting a needle into the tire cord, thereby feeding and discharging the tire cord while cutting the tire cord, thereby reducing the time for lifting the knife to feed the cord. However, since the cord is usually thicker and heavier, when facing some wider cords, it is difficult to drive the cord to be fed automatically by a single steel needle combined with the elastic force of the return spring. Moreover, when the pressure of the steel needle inserted into the cord reaches a certain level, it will directly insert into the cord, which is easy to damage the cut cord, thereby reducing the cutting quality. Utility Model Content

[0004] The purpose of the utility model is to provide a cord fabric cutting device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cord fabric cutting device, comprising a cutting table, a cutting seat is fixedly installed on the upper surface of the cutting table, symmetrically distributed placement grooves are opened on both side surfaces of the cutting table, rotating rods are installed on the inner walls of both sides of the placement grooves through bearings, a conveying roller is fixedly sleeved on the outer surface of the rotating rod, and one end of the rotating rod passes through and extends to the front of the cutting table;

[0006] An automatic feeding device is arranged on the outer surface of one end of the rotating rod, and the automatic feeding device comprises a worm gear, and the inner wall of the worm gear is fixedly sleeved with the outer surface of one end of the rotating rod.

[0007] Preferably, a synchronous wheel is fixedly sleeved on the outer surface of the rotating rod, and the outer surfaces of the two synchronous wheels are transmission-connected with synchronous belts. A support plate is fixedly installed on the front of the cutting table, and a servo motor is fixedly installed on the upper surface of the support plate.

[0008] Preferably, a worm is fixedly mounted on the output shaft of the servo motor via a coupling, the outer surface of the worm is meshed with the tooth surface of the worm wheel, and the upper surface of the cutting table is fixedly connected with symmetrically distributed brackets, and the upper surface of the brackets is fixedly mounted with symmetrically distributed servo electric cylinders.

[0009] Preferably, the inner walls on both sides of the bracket are provided with symmetrically distributed sliding grooves, the inner walls of the sliding grooves are slidably connected with first sliders, the opposite surfaces of the two first sliders are fixedly connected with supports, and the inner walls of the supports are hinged with extrusion rollers through pins.

[0010] Preferably, a support spring is fixedly connected to the upper surface of the first sliding block, a second sliding block is slidably connected to the inner wall of the sliding groove, and one end of the support spring is fixedly connected to the lower surface of the second sliding block.

[0011] Preferably, the opposing surfaces of the two second sliding blocks are fixedly connected with a driving plate, the upper surface of the support is fixedly connected with symmetrically distributed guide rods, and one end of the guide rod passes through the driving plate and extends to the upper surface of the bracket.

[0012] Preferably, one end of the two guide rods is fixedly connected to the top plate, the upper surface of the bracket is provided with a threaded hole, the inner wall of the threaded hole is threadedly connected to a screw, the outer surface of one end of the screw is installed with the upper surface of the driving plate through a bearing, and the other end of the screw is fixedly connected to a driving handle.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the automatic feeding device can realize the automatic uniform feeding and cutting of the cord fabric, avoid the damage to the cord fabric during feeding, improve the quality after cutting, and is suitable for cutting cord fabrics of different thicknesses, thereby improving the practicality of cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 A cord fabric cutting device proposed by the utility model Figure 1 A magnified view of the structure at center;

[0016] Figure 3 A three-dimensional diagram of the support structure of a cord fabric cutting device proposed in the utility model;

[0017] Figure 4 This is an exploded view of the support structure of a cord fabric cutting device proposed in the utility model.

[0018] In the figure: 1. cutting table; 2. cutting seat; 3. placement groove; 4. rotating rod; 5. conveying roller; 6. worm gear; 61. synchronous wheel; 62. synchronous belt; 63. support plate; 64. servo motor; 65. worm; 66. bracket; 67. servo electric cylinder; 68. slide; 69. first slider; 610. support; 611. squeezing roller; 612. supporting spring; 613. second slider; 614. driving plate; 615. guide rod; 616. top plate; 617. threaded hole; 618. screw; 619. driving handle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 4 The utility model provides a technical solution: a cord fabric cutting device, comprising a cutting table 1, a cutting seat 2 is fixedly installed on the upper surface of the cutting table 1, symmetrically distributed placement grooves 3 are opened on both sides of the cutting table 1, and rotating rods 4 are installed on the inner walls of both sides of the placement grooves 3 through bearings, and a conveying roller 5 is fixedly sleeved on the outer surface of the rotating rod 4, and one end of the rotating rod 4 passes through and extends to the front of the cutting table 1;

[0021] An automatic feeding device is arranged on the outer surface of one end of the rotating rod 4 , and the automatic feeding device comprises a worm gear 6 , and the inner wall of the worm gear 6 is fixedly sleeved with the outer surface of one end of the rotating rod 4 .

[0022] Furthermore, a synchronous wheel 61 is fixedly sleeved on the outer surface of the rotating rod 4, and the outer surfaces of the two synchronous wheels 61 are transmission-connected with a synchronous belt 62. A support plate 63 is fixedly installed on the front of the cutting table 1, and a servo motor 64 is fixedly installed on the upper surface of the support plate 63. The rotating rod 4 drives the conveying roller 5 to rotate for positioning, and the rotation of the conveying roller 5 serves to transport and feed the cord fabric. The synchronous belt 62 and the synchronous wheel 61 are used in conjunction to make the two conveying rollers 5 rotate synchronously.

[0023] Furthermore, a worm 65 is fixedly installed on the output shaft of the servo motor 64 through a coupling, and the outer surface of the worm 65 meshes with the tooth surface of the worm wheel 6. The upper surface of the cutting table 1 is fixedly connected with symmetrically distributed brackets 66, and the upper surface of the brackets 66 is fixedly installed with symmetrically distributed servo electric cylinders 67. The servo motor 64 drives the worm 65 to rotate, and the rotation of the worm 65 drives the meshing worm wheel 6 to rotate.

[0024] Furthermore, symmetrically distributed slide grooves 68 are provided on the inner walls of both sides of the bracket 66, and the inner walls of the slide grooves 68 are slidably connected with first sliders 69, and the opposite surfaces of the two first sliders 69 are fixedly connected with supports 610, and the inner walls of the supports 610 are hinged with squeezing rollers 611 through pins. The squeezing rollers 611 are used to squeeze the cord fabric to avoid sliding during transportation, and the first sliders 69 are used to slide in limited positions in the slide grooves 68, thereby driving the squeezing rollers 611 to move through the supports 610.

[0025] Furthermore, a support spring 612 is fixedly connected to the upper surface of the first slider 69, a second slider 613 is slidably connected to the inner wall of the slide groove 68, one end of the support spring 612 is fixedly connected to the lower surface of the second slider 613, and the elastic force of the support spring 612 drives the first slider 69 to reset.

[0026] Furthermore, the opposing surfaces of the two second sliders 613 are fixedly connected with a driving plate 614, and the upper surface of the support 610 is fixedly connected with a symmetrically distributed guide rod 615, one end of the guide rod 615 passes through the driving plate 614 and extends to the upper surface of the bracket 66, and the guide rod 615 serves to guide the lifting and lowering movement of the support 610.

[0027] Furthermore, one end of the two guide rods 615 is fixedly connected to the top plate 616, and a threaded hole 617 is opened on the upper surface of the bracket 66. The inner wall of the threaded hole 617 is threadedly connected to a screw 618. The outer surface of one end of the screw 618 is installed on the upper surface of the driving plate 614 through a bearing, and the other end of the screw 618 is fixedly connected to a driving handle 619. The driving handle 619 facilitates the rotation of the screw 618. The rotation of the screw 618 drives the driving plate 614 to move up and down through the cooperation of the threaded hole 617.

[0028] Through the automatic feeding device, the automatic uniform feeding and cutting of the cord fabric is achieved, which avoids damage to the cord fabric during feeding, improves the quality after cutting, and is suitable for cutting cord fabrics of different thicknesses, thereby improving the practicality of cutting.

[0029] Working principle: Step 1, start the piston rod of the servo electric cylinder 67 to extend, the extending movement of the piston rod of the servo electric cylinder 67 will contact the top plate 616 and drive the top plate 616 to move upward, the upward movement of the top plate 616 drives the support 610 to move upward through the guide rod 615, the upward movement of the support 610 drives the support spring 612 to squeeze and contract through the first slider 69, thereby driving the squeezing roller 611 to move upward, at this time, the cord fabric to be cut passes between the squeezing roller 611 and the conveying roller 5;

[0030] Step 2: Then start the piston rod of the servo electric cylinder 67 to retract and separate from the top plate 616. The elastic force of the support spring 612 drives the squeezing roller 611 to move downward through the cooperation of the first slider 69 and the support 610, and cooperates with the conveying roller 5 to squeeze and clamp the cord fabric. At the same time, the screw 618 can be driven to rotate clockwise by the driving handle 619, so that the driving plate 614 drives the second slider 613 to move downward, thereby increasing the squeezing force of the squeezing roller 611 on the cord fabric. Conversely, rotating the screw 618 counterclockwise reduces the squeezing force.

[0031] Step three, finally, start the servo motor 64 to drive the worm 65 to rotate clockwise, the rotation of the worm 65 drives the rotating rod 4 to rotate through the meshing turbine, the rotation of the rotating rod 4 is coordinated with the synchronous wheel 61 and the synchronous belt 62 to make it rotate synchronously with the conveying rollers 5, the rotation of the conveying roller 5 cooperates with the extrusion force of the extrusion roller 611 to realize the uniform and continuous feeding of the cord fabric, and the cutting knife on the cutting seat 2 is used to cut the cord fabric, and the cord fabric after cutting is transported out through another conveying roller 5.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cord fabric cutting device, comprising a cutting table (1), characterized in that: A cutting seat (2) is fixedly mounted on the upper surface of the cutting table (1), and symmetrically distributed placement grooves (3) are provided on both side surfaces of the cutting table (1). Rotating rods (4) are mounted on the inner walls of both sides of the placement grooves (3) via bearings, and a conveying roller (5) is fixedly sleeved on the outer surface of the rotating rod (4), and one end of the rotating rod (4) passes through and extends to the front of the cutting table (1); An automatic feeding device is provided on the outer surface of one end of the rotating rod (4), and the automatic feeding device comprises a worm gear (6), and the inner wall of the worm gear (6) is fixedly sleeved with the outer surface of one end of the rotating rod (4).

2. A cord fabric cutting device according to claim 1, characterized in that: A synchronous wheel (61) is fixedly sleeved on the outer surface of the rotating rod (4), and a synchronous belt (62) is transmission-connected to the outer surfaces of the two synchronous wheels (61). A support plate (63) is fixedly mounted on the front of the cutting table (1), and a servo motor (64) is fixedly mounted on the upper surface of the support plate (63).

3. A cord fabric cutting device according to claim 2, characterized in that: A worm (65) is fixedly mounted on the output shaft of the servo motor (64) via a coupling, the outer surface of the worm (65) meshing with the tooth surface of the worm wheel (6), the upper surface of the cutting table (1) is fixedly connected with symmetrically distributed brackets (66), and the upper surface of the brackets (66) is fixedly mounted with symmetrically distributed servo electric cylinders (67).

4. A cord fabric cutting device according to claim 3, characterized in that: The inner walls of both sides of the bracket (66) are provided with symmetrically distributed sliding grooves (68), the inner walls of the sliding grooves (68) are slidably connected to first sliders (69), the opposing surfaces of the two first sliders (69) are fixedly connected to supports (610), and the inner walls of the supports (610) are hinged to squeezing rollers (611) via pins.

5. A cord fabric cutting device according to claim 4, characterized in that: A support spring (612) is fixedly connected to the upper surface of the first sliding block (69), a second sliding block (613) is slidably connected to the inner wall of the sliding groove (68), and one end of the support spring (612) is fixedly connected to the lower surface of the second sliding block (613).

6. A cord fabric cutting device according to claim 5, characterized in that: The opposing surfaces of the two second sliding blocks (613) are both fixedly connected to a driving plate (614), and the upper surface of the support (610) is fixedly connected to symmetrically distributed guide rods (615), one end of the guide rod (615) passes through the driving plate (614) and extends to the upper surface of the bracket (66).

7. A cord fabric cutting device according to claim 6, characterized in that: One end of each of the two guide rods (615) is fixedly connected to a top plate (616); a threaded hole (617) is provided on the upper surface of the bracket (66); a screw rod (618) is threadedly connected to the inner wall of the threaded hole (617); an outer surface of one end of the screw rod (618) is mounted on the upper surface of the drive plate (614) via a bearing; and the other end of the screw rod (618) is fixedly connected to a drive handle (619).

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