阅读说明：本技术 轮胎外胎生产工艺 (Production process of tyre casing ) 是由 杨欣慈 隋福进 王春艳 于 2020-05-16 设计创作，主要内容包括：本发明公开了一种轮胎外胎生产工艺,涉及轮胎生产技术领域,其技术方案要点是包括以下步骤：配料、胶料的塑炼、胶料的混炼、胶料的热炼、帘布的加工、帘布压延、胎面压出、胎圈挤出、胎胚定型、硫化；帘布打孔装置包括机架、转动连接在机架上的进料辊、转动连接在进料辊上的收料辊、设置在进料辊侧边的打孔辊以及设置在打孔辊远离收料辊一侧的打孔组件；机架上的两侧设置有连接杆,连接杆上还转动连接有与打孔辊抵接的辅助辊,打孔辊的一端设置槽轮机构以及为槽轮机构提供动力的驱动件,打孔辊沿打孔辊的长度方向均匀开设有若干的凹槽；本发明能够减少外胎橡胶层和布帘层之间的气泡,具有提高轮胎的质量的效果。(The invention discloses a production process of a tire casing, which relates to the technical field of tire production, and the technical scheme is characterized by comprising the following steps: batching, plasticating rubber, mixing rubber, thermally refining rubber, processing cord fabric, calendering cord fabric, extruding tread, extruding tire bead, shaping tire blank and vulcanizing; the cord fabric punching device comprises a rack, a feeding roller rotationally connected to the rack, a receiving roller rotationally connected to the feeding roller, a punching roller arranged on the side edge of the feeding roller and a punching assembly arranged on one side, far away from the receiving roller, of the punching roller; the two sides of the rack are provided with connecting rods, the connecting rods are also rotatably connected with auxiliary rollers which are abutted against the punching rollers, one end of each punching roller is provided with a sheave mechanism and a driving piece which provides power for the sheave mechanism, and the punching rollers are uniformly provided with a plurality of grooves along the length direction of the punching rollers; the invention can reduce the air bubbles between the outer tire rubber layer and the cloth curtain layer and has the effect of improving the quality of the tire.)

1. A production process of a tire casing is characterized by comprising the following steps: the method comprises the following steps:

preparing materials: weighing different raw materials by adopting weighing tools with different specifications;

plasticating rubber material: plasticating the weighed raw materials by adopting an open rubber mixing mill;

mixing of rubber materials: mixing the sizing materials by an internal mixer;

and (3) hot refining of the rubber material: carrying out thermal refining on the rubber material by adopting an open rubber refining machine;

and (3) processing the cord fabric: adopting a cord fabric punching device to punch a cord fabric, and cutting the cord fabric through a cloth cutting machine after punching is finished;

cord fabric rolling: rolling the rubber strips and the cord fabric by a four-roll calender;

pressing out the tire tread: processing the tire tread by using an 8-inch 6-roller rubber mixing mill;

bead extrusion: extruding the tire bead by using a rubber extruder;

molding: forming process by adopting vertical type cutting machine

Shaping a embryo: shaping the tire blank by using an umbrella-shaped shaping machine or a tray shaping machine;

and (3) vulcanization: putting the tire blank into a vulcanizing machine for vulcanization;

the cord fabric punching device comprises a rack (1), a feeding roller (2) rotatably connected to the rack (1), a receiving roller (3) rotatably connected to the feeding roller (2), a punching roller (4) arranged on the side edge of the feeding roller (2) and a punching assembly (6) arranged on one side, far away from the receiving roller (3), of the punching roller (4);

two sides of the rack (1) are provided with connecting rods (51), the punching roller (4) is rotatably connected between the two connecting rods (51), the connecting rods (51) are also rotatably connected with auxiliary rollers (43) abutted against the punching roller (4), one end of the punching roller (4) is provided with a sheave mechanism (42) for driving the punching roller (4) to rotate intermittently and a driving piece for providing power for the sheave mechanism (42), and the punching roller (4) is uniformly provided with a plurality of grooves (41) along the length direction of the punching roller (4);

the punching assembly (6) comprises a jacket (61) fixed on the rack (1), a plurality of punching needles (64) capable of penetrating the jacket (61) and a reciprocating assembly driving the punching needles (64) to do reciprocating motion, the number of the punching needles (64) is multiple, and the distance between the punching needles (64) is the same as that between the grooves (41).

2. The process for producing a tire casing according to claim 1, wherein: the reciprocating assembly comprises a cam (62) rotatably connected in the outer sleeve (61), a fixed block (63) abutted against the cam (62) and an elastic piece driving the fixed block (63) to move towards the inner wall far away from the outer sleeve (61); the perforating needle (64) is fixed on one side of the fixed block (63) close to the inner wall of the outer sleeve (61).

3. The process for producing a tire casing according to claim 2, wherein: the inner wall of the outer sleeve (61) is fixed with a limiting sleeve (611), the fixing block (63) is inserted into the limiting sleeve (611) and is in sliding connection with the limiting sleeve (611), and a limiting block (631) with the sectional area larger than that of the fixing block (63) is fixed at one end, inserted into the limiting sleeve (611), of the fixing block (63).

4. The process for producing a tire casing according to claim 1, wherein: the connecting rod (51) is hinged to the rack (1), an adjusting assembly (5) for adjusting the angle of the connecting rod (51) is arranged on the rack (1), the adjusting assembly (5) comprises a fixing rod (52) arranged on one side, close to the feeding roller (2), of the connecting rod (51), an air cylinder (53) with a cylinder body rotatably connected to the fixing rod (52) and a connecting block (54) fixed to a piston rod of the air cylinder (53), and the connecting block (54) is hinged to the connecting rod (51); .

5. The process for producing a tire casing according to claim 1, wherein: in the cord fabric rolling step, rolled cord fabrics are two layers, and the two layers of cord fabrics are obliquely and alternately arranged.

6. The process for producing a tire casing according to claim 1, wherein: and in the tread extruding step, the extruded tread is firstly horizontally placed on a standby hot vehicle, and is stored after the cooling temperature reaches the specified requirement, and each layer of tread is separated by a laying cloth during storage.

7. The process for producing a tire casing according to claim 1, wherein: in the molding step, after the angle is adjusted, the oblique angle of the first cord can flow into the next procedure after the oblique angle of the first cord meets the construction standard.

8. The process for producing a tire casing according to claim 1, wherein: in the step of shaping the tire blank, a large tray can be used for replacing a small tray in the process of selecting a tray shaping machine.

Technical Field

The invention relates to the technical field of tire production, in particular to a production process of a tire casing.

Background

The motorcycle tire is an important part relating to motorcycle running safety, the common motorcycle tire at present comprises an inner tire and an outer tire, the inner tire is filled with gas, the outer tire comprises a rubber layer and a cloth curtain layer and is wrapped outside the inner tire to protect the inner tire, but the rubber layer structure in the outer tire of the motorcycle at present is not wear-resistant, one outer tire of the motorcycle is damaged after long time use, the outer tire needs to be replaced, and the use cost is increased.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a production process of an outer tire of a tire, which can reduce air bubbles between an outer tire rubber layer and a cloth curtain layer so as to improve the quality of the tire.

In order to achieve the purpose, the invention provides the following technical scheme: a production process of a tire casing is characterized by comprising the following steps: the method comprises the following steps:

preparing materials: weighing different raw materials by adopting weighing tools with different specifications;

plasticating rubber material: plasticating the weighed raw materials by adopting an open rubber mixing mill;

mixing of rubber materials: mixing the sizing materials by an internal mixer;

and (3) hot refining of the rubber material: carrying out thermal refining on the rubber material by adopting an open rubber refining machine;

and (3) processing the cord fabric: adopting a cord fabric punching device to punch a cord fabric, and cutting the cord fabric through a cloth cutting machine after punching is finished;

cord fabric rolling: rolling the rubber strips and the cord fabric by a four-roll calender;

pressing out the tire tread: processing the tire tread by using an 8-inch 6-roller rubber mixing mill;

bead extrusion: extruding the tire bead by using a rubber extruder;

molding: forming process by adopting vertical type cutting machine

Shaping a embryo: shaping the tire blank by using an umbrella-shaped shaping machine or a tray shaping machine;

and (3) vulcanization: putting the tire blank into a vulcanizing machine for vulcanization;

the cord fabric punching device comprises a rack, a feeding roller rotationally connected to the rack, a receiving roller rotationally connected to the feeding roller, a punching roller arranged on the side edge of the feeding roller and a punching assembly arranged on one side, far away from the receiving roller, of the punching roller;

the punching device comprises a rack, a punching roller, a driving piece, a sheave mechanism and a plurality of grooves, wherein connecting rods are arranged on two sides of the rack, the punching roller is rotationally connected between the two connecting rods, an auxiliary roller which is abutted against the punching roller is also rotationally connected onto the connecting rods, the sheave mechanism which drives the punching roller to rotate intermittently and the driving piece which provides power for the sheave mechanism are arranged at one end of the punching roller, and the punching roller is uniformly provided with a plurality of grooves along the length direction;

the subassembly that punches is including fixing overcoat in the frame, can pass a plurality of perforating needles of overcoat and drive the reciprocating assembly that the perforating needle was reciprocating motion, the quantity of perforating needle is a plurality of, and the interval between the perforating needle is the same with the distance between the recess.

By adopting the technical scheme, before the rolling process of the cord fabric, the cord fabric is processed, a plurality of through holes are punched in the surface of the cord fabric through the punching needles in the process that the cord fabric passes through the punching rollers, then the cord fabric is rolled, and the rolled cord fabric is cut into a plurality of cord fabric strips required in the rolling process through the cloth cutting machine. Because the through holes are formed in the cord fabric before rolling, air bubbles generated due to improper operation or improper temperature and other factors can be reduced in the rolling process, and the quality of products is improved.

The invention is further configured to: the reciprocating assembly comprises a cam which is rotatably connected in the outer sleeve, a fixed block which is abutted against the cam and an elastic piece which drives the fixed block to move towards the inner wall far away from the outer sleeve; the perforating needle is fixed on one side of the fixing block close to the inner wall of the outer sleeve.

Through adopting above-mentioned technical scheme, the cam rotates and drives the fixed block to the direction motion that is close to the overcoat inner wall to drive the perforating needle and stretch out the overcoat, stretch out the overcoat back, because the continuation of cam rotates, the perforating needle resets under the drive of elastic component, thereby returns and resets, prepares to stretch out next time, through the drive of cam rotation and elastic component, the cam of being convenient for is reciprocating motion.

The invention is further configured to: the inner wall of the outer sleeve is fixed with a limiting sleeve, the fixing block is inserted into the limiting sleeve and is in sliding connection with the limiting sleeve, and a limiting block with the sectional area larger than that of the fixing block is fixed at one end of the fixing block inserted into the limiting sleeve.

Through adopting above-mentioned technical scheme, the slip of fixed block is by the spacing back of stop collar, can increase the gliding stability of fixed block, and the stopper can prevent that the fixed block from following the gliding stability of fixed block in the stop collar simultaneously.

The invention is further configured to: the connecting rod is articulated with the frame, is provided with the adjusting part of adjusting the connecting rod angle in the frame, the adjusting part rotates the cylinder of connecting on the dead lever and fixes the connecting block on the cylinder piston rod including setting up dead lever, the cylinder body that is close to feed roll one side at the connecting rod, connecting block and connecting rod are articulated.

Through adopting above-mentioned technical scheme, the piston rod of cylinder stretches out or returns the back, and the whole length of cylinder changes, and the position of dead lever remains unchanged again, and then the position that drives the connecting rod changes, changes the distance between perforating roller and the perforating needle, is convenient for adjust the distance between the two under the different conditions.

The invention is further configured to: in the cord fabric rolling step, rolled cord fabrics are two layers, and the two layers of cord fabrics are obliquely and alternately arranged.

Through adopting above-mentioned technical scheme, the biggest pulling force that the different directions of canvas can bear is different, and the crisscross setting of two-layer curtain cloth slant can carry out the neutralization with the biggest pulling force of different directions, reduces because of the first uneven and pull damage phenomenon that causes of appearance.

The invention is further configured to: and in the tread extruding step, the extruded tread is firstly horizontally placed on a standby hot vehicle, and is stored after the cooling temperature reaches the specified requirement, and each layer of tread is separated by a laying cloth during storage.

Through adopting above-mentioned technical scheme, separate with the floorcloth between every layer of tread when depositing, can place and take place the bonding between the adjacent mesa, increase the effect that the mesa was placed.

The invention is further configured to: in the molding step, after the angle is adjusted, the oblique angle of the first cord can flow into the next procedure after the oblique angle of the first cord meets the construction standard.

By adopting the technical scheme, after the angle is adjusted, the new first cord is checked, if the first cord is qualified, the subsequent first cord is qualified, and the quality of the product can be improved by checking the first cord.

The invention is further configured to: in the step of shaping the tire blank, a large tray can be used for replacing a small tray in the process of selecting a tray shaping machine.

Through adopting above-mentioned technical scheme, the flexibility that tray forming machine used can be increased to big tray replacement tray, reduces frequent change.

In conclusion, the beneficial technical effects of the invention are as follows:

1. before the rolling process of the cord fabric, the cord fabric is processed, a plurality of through holes are punched on the surface of the cord fabric through punching needles in the process that the cord fabric passes through punching rollers, then the cord fabric is rolled, and the rolled cord fabric is cut into a plurality of cord fabric strips required in the rolling process through a cloth cutting machine. Because the through holes are formed in the cord fabric before rolling, bubbles generated due to improper operation or improper temperature and other factors can be reduced in the rolling process, and the quality of products is improved;

2. the cam rotates to drive the fixed block to move towards the direction close to the inner wall of the outer sleeve, so that the perforating needle is driven to extend out of the outer sleeve, after the perforating needle extends out of the outer sleeve, the perforating needle is driven by the elastic piece to reset due to the continuous rotation of the cam, and then returns to reset for next extension, and the reciprocating motion of the cam is facilitated through the rotation of the cam and the driving of the elastic piece;

3. the biggest pulling force that the different directions of canvas can bear is different, and the crisscross setting of two-layer cloth curtain slant can carry out the neutralization with the biggest pulling force of equidirectional not, reduces because of the first uneven and pulling damage phenomenon that causes of appearance.

Drawings

FIG. 1 is a schematic view of the overall structure of a cloth curtain perforating device;

FIG. 2 is a schematic structural view showing an adjustment assembly;

FIG. 3 is a cross-sectional view of the perforating assembly.

In the figure: 1. a frame; 2. a feed roll; 3. a material receiving roller; 4. a perforating roller; 41. a groove; 42. a sheave mechanism; 5. an adjustment assembly; 51. a connecting rod; 52. fixing the rod; 53. a cylinder; 54. connecting blocks; 6. a punching assembly; 61. a jacket; 611. a limiting sleeve; 62. a cam; 63. a fixed block; 631. a limiting block; 64. a perforating needle; 65. a spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.