Inner liner cutting disc cutter
By designing the inner lining of the trapezoidal blade and casing assembly, the bubble defects caused by the edge of the inner lining are solved in tire production, efficient cutting and convenient tool maintenance are achieved, and tire quality and production efficiency are improved.
Patent Information
- Application Number
- CN202422669196.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-11-04
AI Technical Summary
During the tire production process, the air trap caused by the straight cutting surface of the inner lining layer leads to bubble defects in the finished tire, affecting the quality, and the prior art has not effectively solved it.
A lining-cut disc knife is designed, with trapezoidal blades and casing assemblies, which are beveled to avoid air, while heat dissipation holes and grinding blocks are provided to ensure sharp and clean edges, providing flexible adjustment with the adjustment frame set.
It effectively solves the problem of air trapping on the edge of the lining layer, improves the quality of finished tires, reduces production costs, extends tool life, and improves cutting efficiency and convenience.
Smart Images

Figure CN223251773U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of extrusion production lines, in particular to a disc knife for cutting inner lining layers. Background Art
[0002] The inner liner is an important component that must be extruded during the tire production process. During the extrusion process, the inner liner component needs to be cut with a thin blade, and the cutting surface is a straight cut section;
[0003] During the tire production process, due to the influence of the straight cut surface of the inner liner edge, a triangular area is formed at this position, resulting in air pockets, which lead to bubble defects in the finished tire. Currently, the bubble defects of the finished products of some specifications due to edge air pockets have reached more than 40%, thereby affecting the quality of the tire.
[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a liner cutting disc knife is proposed. Utility Model Content
[0005] The purpose of the utility model is to provide a disc cutter for cutting inner lining layer, so as to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lining layer cutting disc knife, comprising a disc knife assembly and a sleeve assembly, one side of the disc knife assembly is connected to the sleeve assembly, and both sides of the sleeve assembly are symmetrically connected to the adjustment frame assembly, and an abrasive block is installed on the end of the adjustment frame assembly away from the sleeve assembly, the disc knife assembly comprises a disc knife body, a trapezoidal blade, an inner sleeve, a heat dissipation hole and a docking flange, the edge of the disc knife body is provided with a trapezoidal blade, and the center of the disc knife body is provided with an inner sleeve, and the disc knife body is provided with a heat dissipation hole between the inner sleeve and the trapezoidal blade, and one side of the inner sleeve is connected to the docking flange.
[0007] Furthermore, the inner sleeve and the docking flange are arranged as an integral structure, and the heat dissipation holes are arranged in a ring array with the inner sleeve as the center layer.
[0008] Furthermore, the sleeve assembly includes a connecting flange, a stabilizing bushing and a bearing seat. One side of the connecting flange is connected to the stabilizing bushing, and the outer surface of the stabilizing bushing is sleeved with the bearing seat.
[0009] Furthermore, the connecting flange and the stabilizing bushing are welded together, and the stabilizing bushing and the bearing seat are fixedly connected.
[0010] Furthermore, the inner diameter of the stabilizing bushing is consistent with the inner diameter structure of the inner bushing, and the surface structures of the butt flange and the connecting flange on one side thereof are matched with each other.
[0011] Furthermore, the adjustment frame group includes a first adjustment axis frame, a telescopic rod, a second adjustment axis frame and a fixed angle plate, one end of the first adjustment axis frame is connected to the telescopic rod, and the second adjustment axis frame is installed on the end of the telescopic rod away from the first adjustment axis frame, and the fixed angle plate is symmetrically installed on the left and right sides of the second adjustment axis frame away from the telescopic rod.
[0012] Furthermore, one end of the first adjusting shaft frame away from the telescopic rod is fixedly connected to the surface of the bearing seat, and the second adjusting shaft frame and the fixed angle plate are welded.
[0013] Furthermore, the surface structure of the grinding block on one side close to the disc knife assembly matches the surface structure of the trapezoidal blade, and the surface structure of the grinding block on one side close to the second adjustment shaft frame matches the surface structure of the fixed angle plate and is fixed using bolts.
[0014] The utility model provides a liner cutting disc knife, which has the following beneficial effects:
[0015] 1. The utility model is provided with a trapezoidal blade on the edge of the disc cutter body. By utilizing the arrangement of its structure, when the disc cutter assembly is used for cutting, the straight cut of the edge of the inner liner can be changed into an oblique cut, so that the edge of the inner liner has a gradient transition, thereby effectively solving the problem of bubble defects in the finished tire caused by the poor transition of the edge of the inner liner. At the same time, this structure is low in cost, simple in structure, and saves manpower, thereby ensuring the effect of cutting processing. In addition, since an inner sleeve is provided at the center of the disc cutter body, the entire disc cutter assembly can be stably connected to the coupling of the drive motor, and the heat dissipation holes opened in the annular array structure on the surface of the disc cutter body can not only make the disc cutter body lightweight, but also play a role in heat dissipation and cooling, thereby ensuring the service life of the disc cutter body.
[0016] 2. The utility model is to install a grinding block on one side of the disc cutter body by connecting the sleeve assembly with the adjustment frame assembly, wherein the side surface structure of one end of the grinding block can fit with the surface of the trapezoidal blade, and cooperate with the structural arrangement of the bearing seat. By fitting and docking the grinding block with the trapezoidal blade, during the high-speed rotation of the disc cutter assembly, the surface of the trapezoidal blade can be synchronously ground while the trapezoidal blade extrude and cuts the tire inner liner, which not only ensures the sharpness of the trapezoidal blade but also plays a cleaning role, thereby ensuring the effectiveness of the use of the entire disc cutter assembly, reducing the maintenance operation of the disc cutter assembly, making the disc cutter assembly more convenient and effective to use, and ensuring the quality of cutting processing.
[0017] 3. In the present invention, an adjustment frame group is provided between the grinding block and the sleeve assembly, wherein the structural activity of the first adjustment axis frame and the second adjustment axis frame can provide adjustment for up and down swinging and left and right swinging in the vertical direction and the horizontal direction respectively, and the telescopic rod can provide a certain degree of structural telescopic adjustment. The combined use of the above structures can provide flexible adjustment for the structural docking of the grinding block and the trapezoidal blade, and at the same time, it can also avoid unnecessary structural interference with the operation of the disc knife assembly when the grinding block is not in use. In addition, the grinding block has a relatively convenient structural disassembly with one end of the second adjustment axis frame through the use of bolts and fixed angle plates, so that the grinding block can be disassembled and replaced as needed, so that the device structure remains convenient and flexible. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic structural diagram of the rear axial side view of the main body of a liner cutting disc knife of the utility model;
[0019] Figure 2 This is a schematic structural diagram of the front axial side view of the main body of a liner cutting disc knife of the utility model;
[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of a disc knife assembly for cutting a liner layer according to the utility model;
[0021] Figure 4 The utility model is a schematic diagram of the three-dimensional structure of a sleeve assembly and an adjustment frame assembly of a liner cutting disc knife.
[0022] In the figure: 1. Disc cutter assembly; 101. Disc cutter body; 102. Trapezoidal blade; 103. Inner bushing; 104. Heat dissipation hole; 105. Connecting flange; 2. Sleeve assembly; 201. Connecting flange; 202. Stabilizing bushing; 203. Bearing seat; 3. Adjustment frame group; 301. First adjustment shaft frame; 302. Telescopic rod; 303. Second adjustment shaft frame; 304. Fixed angle plate; 4. Grinding block. DETAILED DESCRIPTION
[0023] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0024] like Figures 1 to 4As shown, a liner layer cutting disc knife comprises a disc knife assembly 1 and a sleeve assembly 2, one side of the disc knife assembly 1 is connected to the sleeve assembly 2, and both sides of the sleeve assembly 2 are symmetrically connected to the adjustment frame assembly 3, and the end of the adjustment frame assembly 3 away from the sleeve assembly 2 is installed with a grinding block 4, the disc knife assembly 1 comprises a disc knife body 101, a trapezoidal blade 102, an inner sleeve 103, a heat dissipation hole 104 and a docking flange 105, the edge of the disc knife body 101 is provided with a trapezoidal blade 102, and the center of the disc knife body 101 is provided with an inner sleeve 103, and the disc knife body 101 is provided with a heat dissipation hole 104 between the inner sleeve 103 and the trapezoidal blade 102, and one side of the inner sleeve 103 is provided with a heat dissipation hole 104. The side is connected with a docking flange 105, and the inner sleeve 103 and the docking flange 105 are arranged in an integrated structure. The heat dissipation holes 104 are arranged in a ring array with the inner sleeve 103 as the center layer. The inner diameter of the stabilizing sleeve 202 is consistent with the inner diameter structure of the inner sleeve 103. The surface structures of the docking flange 105 and the connecting flange 201 on one side are matched with each other. By arranging a trapezoidal blade 102 on the edge of the disc knife body 101, the structural setting can make it possible to change the straight cut of the edge of the inner liner into an oblique cut when using the disc knife assembly 1 for cutting, so that the edge of the inner liner has a gradient transition, thereby effectively solving the problem of bubble defects in the finished tire caused by poor transition of the edge of the inner liner.
[0025] like Figures 1 to 4 As shown, the sleeve assembly 2 includes a connecting flange 201, a stabilizing bushing 202 and a bearing seat 203. The connecting flange 201 is connected to a stabilizing bushing 202 on one side, and the outer surface of the stabilizing bushing 202 is sleeved with the bearing seat 203. The connecting flange 201 and the stabilizing bushing 202 are welded, and the stabilizing bushing 202 and the bearing seat 203 are fixedly connected. The surface structure of the grinding block 4 on one side close to the disc knife assembly 1 matches the surface structure of the trapezoidal blade 102, and the surface structure of the grinding block 4 on one side close to the second adjusting shaft frame 303 matches the surface structure of the fixed angle plate 304 and is fixed with bolts, wherein the side surface structure of one end of the grinding block 4 can fit together with the surface of the trapezoidal blade 102, and cooperate with the structural setting of the bearing seat 203. By fitting and docking the grinding block 4 with the trapezoidal blade 102, the surface of the trapezoidal blade 102 can be synchronously ground during the high-speed rotation of the disc knife assembly 1.
[0026] like Figures 1 to 4As shown, the adjustment frame group 3 includes a first adjustment axis frame 301, a telescopic rod 302, a second adjustment axis frame 303 and a fixed angle plate 304, one end of the first adjustment axis frame 301 is connected to the telescopic rod 302, and the second adjustment axis frame 303 is installed on the end of the telescopic rod 302 away from the first adjustment axis frame 301, and the fixed angle plate 304 is symmetrically installed on the left and right end of the second adjustment axis frame 303 away from the telescopic rod 302, the end of the first adjustment axis frame 301 away from the telescopic rod 302 is fixedly connected to the surface of the bearing seat 203, and the second adjustment axis frame 303 and the fixed angle plate 304 are welded together, wherein the structural activity of the first adjustment axis frame 301 and the second adjustment axis frame 303 can provide adjustment in the vertical and horizontal directions, respectively, and the telescopic rod 302 can provide a certain degree of structural telescopic adjustment.
[0027] In summary, if Figures 1 to 4 As shown, when using the inner lining layer cutting disc knife, first, the docking flange 105 on one side of the inner sleeve 103 is docked with the connecting flange 201, and then the two are connected and fixed with bolts, so that the disc knife assembly 1 and the sleeve assembly 2 are docked and assembled with each other, and then the inner sleeve 103 in the middle of the disc knife body 101 and the stabilizing sleeve 202 are used to fix the entire device on the knife seat for subsequent use;
[0028] Later, during the extrusion production of the inner liner, the disc cutter is lowered by pneumatic pressure and its position is fixed according to the corresponding construction. When the inner liner passes through, the trapezoidal blade 102 on the edge of the disc cutter body 101 extrude and cut the edge, and the edge becomes a structure with a relevant transition to meet the processing requirements;
[0029] When the grinding block 4 is needed, the structural foldability and elasticity of the first adjustment axis frame 301, the telescopic rod 302, and the second adjustment axis frame 303 are utilized to dock one end of the grinding block 4 with the trapezoidal blade 102, and the structural activity of the bearing seat 203 is utilized to grind and clean the surface of the rotating trapezoidal blade 102 to ensure the processing effect of the trapezoidal blade 102.
[0030] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.
Claims
1. A liner cutting disc knife, comprising a disc knife assembly (1) and a sleeve assembly (2), characterized in that: One side of the disc knife assembly (1) is connected to a sleeve assembly (2), and both sides of the sleeve assembly (2) are symmetrically connected to an adjustment frame assembly (3), and an end of the adjustment frame assembly (3) away from the sleeve assembly (2) is installed with a grinding block (4). The disc knife assembly (1) comprises a disc knife body (101), a trapezoidal blade (102), an inner sleeve (103), a heat dissipation hole (104) and a docking flange (105). The edge of the disc knife body (101) is provided with a trapezoidal blade (102), and the center of the disc knife body (101) is provided with an inner sleeve (103). The disc knife body (101) is provided with a heat dissipation hole (104) between the inner sleeve (103) and the trapezoidal blade (102), and one side of the inner sleeve (103) is connected to the docking flange (105).
2. The inner lining layer cutting disc knife according to claim 1, characterized in that: The inner liner (103) and the docking flange (105) are arranged in an integrated structure, and the heat dissipation holes (104) are arranged in a ring array with the inner liner (103) as the center layer.
3. The inner lining layer cutting disc knife according to claim 1, characterized in that: The sleeve assembly (2) comprises a connecting flange (201), a stabilizing bushing (202) and a bearing seat (203); one side of the connecting flange (201) is connected to the stabilizing bushing (202), and the outer surface of the stabilizing bushing (202) is sleeved with the bearing seat (203).
4. The inner lining layer cutting disc knife according to claim 3, characterized in that: The connecting flange (201) and the stabilizing bushing (202) are connected by welding, and the stabilizing bushing (202) and the bearing seat (203) are fixedly connected.
5. The inner lining layer cutting disc knife according to claim 4, characterized in that: The inner diameter of the stabilizing bushing (202) and the inner diameter structure of the inner bushing (103) are consistent with each other, and the surface structures of the side where the docking flange (105) and the connecting flange (201) are connected to each other match each other.
6. The inner lining layer cutting disc knife according to claim 3, characterized in that: The adjustment frame group (3) comprises a first adjustment axis frame (301), a telescopic rod (302), a second adjustment axis frame (303) and a fixed angle plate (304), wherein one end of the first adjustment axis frame (301) is connected to the telescopic rod (302), and the second adjustment axis frame (303) is installed at one end of the telescopic rod (302) away from the first adjustment axis frame (301), and the fixed angle plate (304) is symmetrically installed at one end of the second adjustment axis frame (303) away from the telescopic rod (302).
7. The inner lining layer cutting disc knife according to claim 6, characterized in that: One end of the first adjustment shaft frame (301) away from the telescopic rod (302) is fixedly connected to the surface of the bearing seat (203), and the second adjustment shaft frame (303) and the fixed angle plate (304) are welded together.
8. The inner lining layer cutting disc knife according to claim 7, characterized in that: The surface structure of one side of the grinding block (4) close to the disc cutter assembly (1) matches the surface structure of the trapezoidal blade (102), and the surface structure of one side of the grinding block (4) close to the second adjustment shaft frame (303) matches the surface structure of the fixed angle plate (304) and is fixed using bolts.