阅读说明：本技术 一种轮胎自动正包方法 (Automatic tyre positive wrapping method ) 是由 杨春雨 付国腾 谢小红 姚迪瀚 于 2021-11-16 设计创作，主要内容包括：本发明涉及一种轮胎自动正包方法,属于轮胎生产技术领域,胶囊移动至胶囊正包位,正包装置自起始位初次移动至一次正包位,一次正包,正包装置初次后退,贴合鼓旋转,正包装置二次移动至二次正包位,二次正包,扣圈,正包装置二次后退至起始位,本发明通过对成型机中指型片、胎圈、胶囊及推盘的特定运动方式及移动速度进行优选设定,自动完成正包操作,保证每条轮胎正包效果一致,反包端点稳定且一致。(The invention relates to an automatic tyre forward-packing method, belonging to the technical field of tyre production, wherein a bladder is moved to a bladder forward-packing position, a forward-packing device is moved to a primary forward-packing position from an initial position for the first time, the primary forward-packing device is subjected to primary backward movement, a laminating drum rotates, the forward-packing device is moved to a secondary forward-packing position for the second time, the secondary forward-packing, a ring is buckled, and the forward-packing device is subjected to secondary backward movement to the initial position.)

1. An automatic tyre positive wrapping method is characterized by comprising the following steps:

s100, when the capsule reaches a capsule positive wrapping position, the positive wrapping device firstly moves from an initial position to a primary positive wrapping position for primary positive wrapping;

the capsule forward-wrapping position is located below a reverse-wrapping tire body, the forward-wrapping device comprises a finger-shaped sheet and a push disc which can move relatively, the push disc is connected with a tire bead through a tire bead hanging claw, the finger-shaped sheet is moved from an initial position to a finger-shaped sheet forward-wrapping preparation position needing tire body forward-wrapping, the push disc moves until the push disc is contacted with the finger-shaped sheet, the push disc advances and compresses the finger-shaped sheet until the finger-shaped sheet is contacted with the reverse-wrapping tire body, the push disc reaches the push disc forward-wrapping preparation position, the push disc continuously advances to the one-time forward-wrapping position of the push disc, and the finger-shaped sheet retreats to the finger-shaped sheet forward-wrapping position to perform one-time forward-wrapping;

s200, the forward wrapping device retreats for the first time to enable the finger-shaped sheets to be separated from the reverse wrapping tire body, the finger-shaped sheets are in a fully opened state, and the attaching drum rotates;

s300, moving the packet correcting device to a secondary packet correcting position for secondary packet correcting;

s400, separating the tire bead from the tire bead hanging claw, and leaving the tire bead above the reversely wrapped tire body to finish ring buckling;

step S500, the packet forwarding device retreats to the start bit for the second time.

2. The automatic tyre positive packaging method according to claim 1, wherein the positive packaging devices are symmetrically arranged at two sides of the laminating drum and can move along the main axis direction of the laminating drum.

3. The automatic tyre positive coating method as claimed in claim 2, wherein the finger-shaped sheets are provided in plurality, and the finger-shaped sheets are located on a circumference with the same diameter and are trumpet-shaped when the finger-shaped sheets are in an open state.

4. The automatic tyre positive wrapping method according to claim 3, wherein in step S100, before the finger is moved from the initial position to the finger positive wrapping preparation position for the first time, the finger is extended out of the push plate and is in a fully opened state.

5. The automatic tyre positive wrapping method according to claim 4, wherein in step S200, the finger-shaped sheet is retreated to a primary finger-shaped sheet retreating position to separate the finger-shaped sheet from the reverse wrapping tyre body, the pushing disc is retreated to a primary pushing disc retreating position to enable the finger-shaped sheet to be in a fully opened state, the rotating angle of the attaching drum is alpha, and alpha = 360/2-360/(n x 2), wherein n represents the number of the finger-shaped sheets.

6. The automatic tyre forward-packing method according to claim 5, wherein in step S300, the finger-shaped sheet is moved to a finger-shaped sheet forward-packing preparation position where the tyre body is required to be forward-packed, the push disc is moved to contact with the finger-shaped sheet, the push disc advances and compresses the finger-shaped sheet until the finger-shaped sheet contacts with the reverse-packed tyre body, the push disc reaches the push disc forward-packing preparation position, the push disc continues to advance to the push disc secondary forward-packing position, and the finger-shaped sheet retreats to the finger-shaped sheet forward-packing position, and the secondary forward-packing is carried out, so that the diameter of the reverse-packed tyre body is smaller than the diameter of the tyre bead.

7. The automatic tyre positive wrapping method according to claim 6, wherein in step S400, the bead hanging claws can stretch and contract, and the bead hanging claws contract and return to the push disc to enable the beads to be separated from the bead hanging claws.

8. The automatic tyre forward-packing method according to claim 7, wherein in step S500, the finger-shaped piece retreats to a secondary finger-shaped piece retreating position to separate the finger-shaped piece from the reverse-packed tyre body, the push disc retreats to a secondary push disc retreating position to enable the finger-shaped piece to be in a fully open state, so as to avoid the extrusion between the finger-shaped piece and the tyre bead, and the push disc and the finger-shaped piece retreat to a start position.

9. The method of claim 8, wherein the steps S100 to S500 are performed for a tire of a predetermined specification, and the position parameters are recorded and saved, wherein the position parameters include a bladder forward-packing position, a finger-type sheet forward-packing preparation position, a push-disc forward-packing preparation position, a finger-type sheet forward-packing position, a push-disc primary forward-packing position, a primary finger-type sheet backward position, a primary push-disc backward position, a push-disc secondary forward-packing position, a secondary finger-type sheet backward position, and a secondary push-disc backward position.

10. The method according to claim 9, wherein after the specification of the tire is changed, the position parameter is calculated under the condition that the width of the fitting drum and the correction parameter are known, and the position parameter is input into the forming machine to complete the automatic tyre positive wrapping operation.

Technical Field

The invention belongs to the technical field of tire production, and particularly relates to an automatic tyre positive wrapping method.

Background

The tire is an indispensable component of vehicles such as cars, trucks, mine cars and the like, the performance of the vehicles is closely related to the characteristics of the tire, and the tire blank forming is a key process in the tire production process. The main problem of the tire in practical use is the bead bulging problem, the position of the turn-up end point has a great influence on the bead bulging phenomenon in the molding process, and the main factors influencing the turn-up end point in the molding process are the stability and the uniformity in the turn-up process. The conventional tire building machine is fully manually operated during forward wrapping, is long in time, is greatly influenced by the skills of personnel, and cannot ensure the stability of a reverse wrapping end point.

Disclosure of Invention

In order to solve the above problems, an automatic tyre positive wrapping method is proposed.

In order to achieve the purpose, the invention provides the following technical scheme:

an automatic tyre positive packaging method comprises the following steps:

s100, when the capsule reaches a capsule positive wrapping position, the positive wrapping device firstly moves from an initial position to a primary positive wrapping position for primary positive wrapping;

the capsule is arranged on the capsule tail seat, the capsule forward-wrapping position is positioned below the reverse-wrapping carcass, and when the capsule is positioned at the capsule forward-wrapping position, the end point of the reverse-wrapping carcass and the capsule tail seat are positioned on the same vertical line;

the turning-up device comprises a finger-shaped sheet and a pushing disc which can move relatively, the pushing disc is connected with a tire bead through a tire bead hanging claw, the finger-shaped sheet is firstly moved from a starting position to a finger-shaped sheet turning-up preparation position where tire body turning-up is needed, the pushing disc is moved to be in contact with the finger-shaped sheet, the pushing disc moves forward and compresses the finger-shaped sheet until the finger-shaped sheet is in contact with a turning-up tire body, the pushing disc reaches the pushing disc turning-up preparation position, the pushing disc continuously moves forward to a once turning-up position of the pushing disc, the finger-shaped sheet retreats to the finger-shaped sheet turning-up position, turning-up is carried out for one time, and the diameter of the turning-up tire body is pre-contracted;

s200, the positive packaging device is firstly retreated, and the laminating drum rotates;

s300, moving the packet correcting device to a secondary packet correcting position for secondary packet correcting;

s400, separating the tire bead from the tire bead hanging claw, and leaving the tire bead above the reversely wrapped tire body to finish ring buckling;

step S500, the packet forwarding device retreats to the start bit for the second time.

Further, the two sides of laminating drum are located to the device symmetry of just wrapping, and just wrapping the device and can moving along the main shaft direction of laminating drum.

Further, the finger-shaped sheets are arranged in a plurality of numbers, the finger-shaped sheets are uniformly distributed on the circumference with the same diameter, the central line of the circumference is overlapped with the main shaft of the laminating drum, and the pushing disc is arranged on the periphery of the circumference.

Furthermore, one end of the finger-shaped sheet, which is far away from the laminating drum, is provided with a fixed seat, and the finger-shaped sheets are trumpet-shaped when being in an open state.

Further, the fixed seat is driven by a first driving element, the pushing disc is driven by a second driving element, and the finger-shaped sheet presses the edge of the turn-up tire body positioned on the periphery of the fitting drum against the bladder in the moving process of the pushing disc.

Further, in step S100, before the finger is moved from the start position to the finger wrapping preparation position for the first time, the finger is extended out of the push tray and is in a fully opened state.

Preferably, in step S100, during the process that the capsule moves from the start position to the capsule forward-packing position, the finger-shaped piece extends out of the push tray and moves to the finger-shaped piece forward-packing preparation position, and the push tray moves to contact with the finger-shaped piece, the finger-shaped piece and the push tray do not contact with the reverse-packing tire body, so that the capsule, the finger-shaped piece and the push tray can move at the limit speed.

Further, in step S200, the finger-shaped sheet is retreated to the first finger-shaped sheet retreating position to separate the finger-shaped sheet from the turn-up carcass, the push tray is retreated to the first push tray retreating position to enable the finger-shaped sheet to be in a fully opened state, at this time, the finger-shaped sheet is not in contact with the turn-up carcass, the laminating drum is convenient to rotate, the rotation angle of the laminating drum is α, and α = 360/2-360/(n × 2), wherein n represents the number of the finger-shaped sheets.

Further, in step S300, the finger-shaped piece moves to a finger-shaped piece forward-wrapping preparation position where the tire body forward-wrapping is required, the push tray moves to contact with the finger-shaped piece, the push tray advances and compresses the finger-shaped piece until the finger-shaped piece contacts with the reverse-wrapped tire body, the push tray reaches the push tray forward-wrapping preparation position, the push tray continues to advance to a secondary forward-wrapping position of the push tray, and the finger-shaped piece retreats to the finger-shaped piece forward-wrapping position, and secondary forward-wrapping is performed, so that the diameter of the reverse-wrapped tire body is smaller than the diameter of the tire bead.

Further, in step S400, the bead hanging claw is retractable, the bead hanging claw is retracted and returned into the push tray, and the bead is separated from the bead hanging claw.

Further, in step S500, the finger-shaped piece retreats to the secondary finger-shaped piece retreating position to separate the finger-shaped piece from the reversely wrapped tire body, the push disc retreats to the secondary push disc retreating position to make the finger-shaped piece in a fully opened state, so as to prevent the finger-shaped piece and the tire bead from being squeezed, and the push disc and the finger-shaped piece retreat to the start position.

Preferably, in step S500, during the process of retreating the push tray to the secondary push tray retreating position and retreating the push tray and the finger-shaped piece to the start position, the push tray and the finger-shaped piece move at the limit speed.

Further, in steps S100 to S500, after the capsule is moved to the capsule normal position, the capsule position is kept unchanged.

Further, for the tire with the specified specification, executing the steps S100 to S500, recording and storing position parameters, wherein the position parameters comprise a capsule forward-wrapping position, a finger-shaped sheet forward-wrapping preparation position, a push disc forward-wrapping preparation position, a finger-shaped sheet forward-wrapping position, a push disc primary forward-wrapping position, a finger-shaped sheet backward position, a push disc secondary forward-wrapping position, a secondary finger-shaped sheet backward position and a secondary push disc backward position, and calculating the position parameters by using a calculation formula of the position parameters and the width of the laminating drum as output results to obtain correction parameters.

Further, the calculation formula is a = b-the width of the laminating drum/2, wherein a is a position parameter, and b is a correction parameter.

Further, after the specification of the tire is changed, under the condition that the width of the laminating drum and the correction parameters are known, the position parameters are obtained through calculation, and the position parameters are input into the forming machine, so that the automatic positive wrapping operation of the tire is completed.

The invention has the beneficial effects that:

1. the forward wrapping operation is automatically finished by optimally setting the specific motion modes and the moving speeds of the middle finger type piece, the tire bead, the capsule and the push disc of the forming machine, so that the forward wrapping effect of each tire is ensured to be consistent, and the reverse wrapping end points are stable and consistent.

2. A calculation formula is established between the position parameters of the finger-shaped sheet and the push disc and the flat width of the tire, for tires with different specifications, the corresponding position parameters can be generated only by inputting the flat width of the corresponding specification into the formula, and the universality is high.

3. The interference of operators in the forward packaging process is avoided, the fluctuation range of the reverse packaging end point is reduced from 60mm to 13mm, and the product quality and the uniformity are improved.

4. Position parameters are generated through a calculation formula and used for regulating and controlling the forming machine, the forward packaging time is greatly increased, the single-tire forward packaging time is increased from 40min to 13min, and the efficiency is improved.

5. Aiming at different stages of forward wrapping operation, the moving speed of the finger-shaped sheet and the push disc is preferably designed, so that friction between the finger-shaped sheet and the push disc and reverse wrapping of the tire body can be avoided, and the efficiency can be improved to the maximum extent.

Description of the drawings:

FIG. 1 is a block flow diagram of the present invention;

fig. 2(a) to 2(i) are schematic diagrams illustrating position changes of a forward packaging device during forward packaging;

in the figure: 1-push plate, 2-finger type piece, 3-fitting drum, 4-capsule and 5-tire bead.

Detailed Description

In order to make the technical solutions of the present invention better understood, the following description is provided clearly and completely, and other similar embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application based on the embodiments in the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are merely directions of reference, and thus, the directional terms used are intended to illustrate rather than limit the present invention.

The first embodiment is as follows:

as shown in fig. 1 and 2, a tire is prepared by using a molding machine on which a turning device is provided to automatically turn the tire, the turning device being symmetrically provided on both sides of the bonding drum 3 and being movable in the direction of the main axis of the bonding drum 3. The positive package device includes finger type piece 2 and pushing disk 1 that can relative movement, finger type piece 2 is equipped with a plurality ofly, and a plurality of finger type pieces 2 are located the same circumference of diameter and equipartition, the central line of circumference and the coincidence of the main shaft of laminating drum 3, pushing disk 1 is located the periphery of circumference. One end of the finger-shaped sheet 2, which is far away from the laminating drum 3, is provided with a fixed seat, and the finger-shaped sheets 2 are trumpet-shaped when in an opening state. The fixed seat is driven by a first driving element, the push disc 1 is driven by a second driving element, and the finger-shaped sheets 2 press the edge of the turn-up tire body positioned on the periphery of the laminating drum 3 against the capsule 4 in the moving process of the push disc 1. Meanwhile, the push disc 1 is connected with a tire bead 5 through a tire bead hanging claw, and the tire bead hanging claw can stretch out and draw back.

That is, the position of the finger-shaped piece 2 is unchanged, the push disc 1 moves forward, and the bell mouth of the finger-shaped piece 2 is reduced; the position of the finger-shaped piece 2 is unchanged, the push disc 1 retreats, and the bell mouth of the finger-shaped piece 2 is expanded; the position of the finger-shaped sheet 2 is unchanged, the push disc 1 advances to be aligned with the finger-shaped sheet 2, the diameter of the bell mouth of the finger-shaped sheet 2 is reduced to the minimum, and at the moment, the diameter of the tire bead 5 on the tire bead hanging claw is larger than the diameter of the bell mouth of the finger-shaped sheet 2; the position of the push disc 1 is unchanged, the finger-shaped sheet 2 moves forward, and the bell mouth of the finger-shaped sheet 2 is enlarged; the position of the push disc 1 is unchanged, the finger-shaped sheet 2 retreats, and the bell mouth of the finger-shaped sheet 2 is reduced.

Specifically, the automatic tyre positive wrapping method comprises the following steps:

and S100, moving the capsule 4 to a capsule positive wrapping position, and moving the positive wrapping device from the starting position to a primary positive wrapping position for primary positive wrapping.

The capsule 4 is arranged on the capsule tailstock, the capsule 4 is moved to the position below the reversely wrapped carcass and reaches the capsule normally-wrapped position, namely the capsule normally-wrapped position is positioned below the reversely wrapped carcass, and meanwhile, when the capsule 4 is positioned at the capsule normally-wrapped position, the end point of the reversely wrapped carcass and the capsule tailstock are positioned on the same vertical line. When the tyre is automatically turned up, the bladder 4 supports the turned tyre body to prevent the turned tyre body from sagging, and as shown in fig. 2(a), the bladder 4 is at the bladder turning position and the turning device is at the starting position.

The finger-shaped piece 2 extends out of the push disc 1 and is in a fully opened state, and the finger-shaped piece 2 is prevented from damaging the turn-up tyre body in the moving process, as shown in fig. 2 (b). The finger 2 is moved to a finger forward wrapping preparation position where the carcass forward wrapping is required, as shown in fig. 2 (c). The pushing disc 1 moves to contact with the finger-shaped sheet 2 (contact with one end far away from the fitting drum 3), the pushing disc 1 advances and compresses the finger-shaped sheet 2 until the finger-shaped sheet 2 contacts with the turn-up tire body, and the pushing disc 1 reaches a pushing disc forward-packing preparation position to perform forward-packing preparation, as shown in fig. 2 (d). The push disc 1 continuously advances to a primary forward wrapping position of the push disc, the finger-shaped sheet 2 retreats to the finger-shaped sheet forward wrapping position, primary forward wrapping is carried out, as shown in fig. 2(e), the reverse wrapping tire body is compressed through the finger-shaped sheet 2, the diameter of the reverse wrapping tire body is pre-contracted, and the forward wrapping effect is ensured.

Preferably, in step S100, during the process that the capsule 4 moves from the start position to the capsule forward-wrapping position, the finger-shaped piece 2 extends out of the push tray 1 and moves to the finger-shaped piece forward-wrapping preparation position, and the push tray 1 moves to contact with the finger-shaped piece 2, the finger-shaped piece 2 and the push tray 1 are not in contact with the reverse-wrapping tire body, so that the capsule 4, the finger-shaped piece 2 and the push tray 1 can move at the limit speed.

Step S200 is to retract the wrapping device for the first time and rotate the bonding drum 3.

The finger-shaped sheet 2 is retreated to the first finger-shaped sheet retreating position to enable the finger-shaped sheet 2 to be separated from the reversely wrapped tire body, the push disc 1 is retreated to the first push disc retreating position to enable the finger-shaped sheet 2 to be in a completely opened state, as shown in fig. 2(f), at the moment, the finger-shaped sheet 2 is not in contact with the reversely wrapped tire body, the laminating drum 3 is convenient to rotate, the rotating angle of the laminating drum 3 is alpha, and alpha = 360/2-360/(n 2), wherein n represents the number of the finger-shaped sheets 2, and all positions of the reversely wrapped tire body are guaranteed to be grabbed by the finger-shaped sheets 2 in the process of primary forward wrapping and secondary forward wrapping.

And step S300, moving the packet correcting device to a secondary packet correcting position for secondary packet correcting.

The finger 2 moves to the finger forward wrapping preparation position where the carcass forward wrapping is required, as shown in fig. 2 (c). The pushing disc 1 moves to be in contact with the finger-shaped piece 2, the pushing disc 1 advances and compresses the finger-shaped piece 2 until the finger-shaped piece 2 is in contact with the turn-up tire body, and the pushing disc 1 reaches a pushing disc and forward package preparation position, as shown in fig. 2 (d). And (e) continuously advancing the push disc 1 to a secondary forward wrapping position of the push disc, retreating the finger-shaped sheet 2 to the forward wrapping position of the finger-shaped sheet, and performing secondary forward wrapping, wherein as shown in fig. 2(e), the reverse wrapping tire body is compressed by the finger-shaped sheet 2, so that the diameter of the reverse wrapping tire body is contracted to be smaller than the inner diameter of the tire bead 5, and the tire bead 5 can be sleeved above the reverse wrapping tire body.

And step S400, buckling a ring.

The tire bead hanging claw is contracted and returns to the push disc 1, the tire bead 5 is separated from the tire bead hanging claw, the tire bead 5 is left above the turn-up tire body, and the ring buckling is completed, as shown in fig. 2 (g).

Step S500, the packet forwarding device retreats to the start bit for the second time.

The finger-shaped sheet 2 retreats to the secondary finger-shaped sheet retreating position to make the finger-shaped sheet 2 separate from the reversely wrapped tire body, the push disc 1 retreats to the secondary push disc retreating position to make the finger-shaped sheet 2 in a completely opened state to avoid the extrusion between the finger-shaped sheet 2 and the tire bead 5, as shown in fig. 2 (h). The push disc 1 and the finger-shaped sheet 2 move back to the initial position, and the forward packaging device returns to zero, as shown in fig. 2 (i). Preferably, in step S500, during the process that the push tray 1 retreats to the secondary push tray retreating position and the push tray 1 and the finger-shaped piece 2 retreat to the start position, the push tray 1 and the finger-shaped piece 2 move at the limit speed.

In steps S100 to S500, after the capsule 4 moves to the capsule normal position, the position of the capsule 4 is kept unchanged.

In addition, the method further comprises the following steps: and (5) executing steps S100 to S500 aiming at the tire with the specified specification, recording and storing position parameters, wherein the position parameters comprise a capsule positive wrapping position, a finger-shaped sheet positive wrapping preparation position, a push disc positive wrapping preparation position, a finger-shaped sheet positive wrapping position, a push disc primary positive wrapping position, a finger-shaped sheet backward position, a push disc secondary positive wrapping position, a secondary finger-shaped sheet backward position and a secondary push disc backward position, calculating a calculation formula of the position parameters and the width of the laminating drum by taking the position parameters as output results, and calculating to obtain correction parameters. The calculation formula is a = b-the width of the laminating drum/2, wherein a is a position parameter, and b is a correction parameter. And after the specification of the tire is changed, calculating to obtain a position parameter under the condition that the width of the laminating drum and the correction parameter are known, and inputting the position parameter into a forming machine to finish the automatic positive wrapping operation of the tire.

In conclusion, the forward wrapping operation is automatically completed by optimally setting the specific motion modes and the moving speeds of the middle finger type piece 2, the tire bead 5, the capsule 4 and the push disc 1 of the forming machine, so that the forward wrapping effect of each tire is consistent, and the reverse wrapping end points are stable and consistent. Meanwhile, a calculation formula is established between the position parameters of the finger-shaped sheet 2 and the push disc 1 and the flat width of the tire, and for tires of different specifications, the corresponding position parameters can be generated only by inputting the flat width of the corresponding specification into the formula, so that the universality is high.

Example two:

as shown in fig. 1 and fig. 2, the same parts of this embodiment as those of the first embodiment are not described again, except that:

for the 57 and 63 specification tire building machines, for the 53/80R63 specification tire, the steps S100 to S500 are executed, the position parameters are recorded and stored, the position parameters are used as output results, the calculation formula of the position parameters and the width of the laminating drum is calculated, and the correction parameters are obtained.

For other specification tires, such as 57 specification tires, the position parameters in the normal wrapping operation are set as follows:

the distance from the starting position to the capsule positive wrapping position of the capsule 4 is s₁And s is₁= 972-laminating drum width/2 +2400, distance of finger 2 from start position to finger positive wrapping preparation position is s₂And s is₂= 972-laminating drum width/2 +2500, the distance from the starting position to the push disc forward packet preparation position of the push disc 1 is s₃And s is₃= 972-laminating drum width/2 +1550, the distance from the starting position to the positive wrapping position of the finger type piece 2 is s₄And s is₄= 972-width of the laminating drum/2 + 2400. the distance from the start position to one-time positive wrapping position of the push disk 1 is s₅And s is₅= 972-lamination drum width/2 + 1690. Preferably, in step S100, the push tray 1 advances and compresses the finger-shaped piece 2 until the push tray 1 reaches the one-time wrapping position of the push tray, the moving speed of the push tray 1 is 3mm/S, and the moving speeds of the push tray 1 and the finger-shaped piece 2 are 3mm/S in the one-time wrapping process when the finger-shaped piece 2 retreats to the finger-shaped piece wrapping position. In the process that the capsule 4 moves from the starting position to the capsule wrapping position, the finger-shaped piece 2 extends out of the push disc 1 and moves to the finger-shaped piece wrapping preparation position, and the push disc 1 moves to be in contact with the finger-shaped piece 2, the moving speed of the capsule 4, the finger-shaped piece 2 and the push disc 1 is 15 mm/s.

The distance from the starting position to the retreating position of the finger-shaped piece 2 is s₆And s is₆= 972-laminating drum width/2 +2100, the distance from the starting position to one disc pushing back position of the disc pushing 1 is s₇And s is₇= 972-lamination drum width/2 + 700. Preferably, in step S200, the moving speed of the push tray 1 is 15mm/S when the push tray 1 is retreated to the primary push tray retreating position, and the moving speed of the finger-shaped piece 2 is 3mm/S when the finger-shaped piece 2 is retreated to the primary finger-shaped piece retreating position.

In step S300, the distance from the start position to the secondary normal wrapping position of the push plate 1 is S₈And s is₈And = 972-fitting drum width/2 +2310, compressing the turn-up carcass by the finger-shaped sheet 2 to shrink the diameter of the turn-up carcass to be smaller than the inner diameter of the bead 5, so that the bead 5 can be sleeved above the turn-up carcass. Preferably, in step S300, the moving speed of the finger-shaped piece 2 and the push tray 1 is 10mm/S while the finger-shaped piece 2 moves to the finger-shaped piece wrapping preparation position and the push tray 1 moves to contact with the finger-shaped piece 2, the push tray 1 moves forward and compresses the finger-shaped piece 2 until the push tray 1 reaches the secondary wrapping position of the push tray, the finger-shaped piece 2 moves backward to the finger-shaped piece wrapping position, and the moving speed of the push tray 1 and the finger-shaped piece 2 is 3mm/S during the secondary wrapping.

The distance from the starting position to the retreating position of the second finger-shaped piece of the finger-shaped piece 2 is s₉And s is₉= 972-laminating drum width/2 +2300, the distance from a starting position to a secondary push disc retreating position of the push disc 1 is s₁₀And s is₁₀= 972-lamination drum width/2 + 1200. Preferably, in the step S500, the moving speed of the finger piece 2 is 6mm/S in the process of retreating the finger piece 2 to the secondary finger piece retreating position. And in the process that the push disc 1 retreats to the secondary push disc retreating position and the push disc 1 and the finger-shaped sheet 2 retreat to the starting position, the moving speed of the push disc 1 and the finger-shaped sheet 2 is 15 mm/s.

In the above calculation formula, the correction parameters include constant parameters (i.e. 972) and adjustment parameters (e.g. 2300, 1200, 2310, 2100, 700, 2400, 2500, 1550, 1690, etc.).

The data table 1 of the anti-packet end points obtained by the forward packet method is shown in table 1, and it can be seen from table 1 that: the end point deviation of the back-wrap fluctuates by 13 mm.

Table 1:

for the 63-gauge tire, the data of the turn-up end points obtained by the conventional turn-up method are shown in table 2, and it can be seen from table 2 that: the variation of the end point of the back-wrap fluctuates by 60 mm. The traditional forward packing method comprises the steps that a capsule moves to the position below a reverse packed tire body, a finger-shaped sheet 2 moves to the position where tire body forward packing is needed, a push disc 1 advances to compress the finger-shaped sheet 2 until the finger-shaped sheet 2 is contacted with the tire body, the push disc 1 advances, the finger-shaped sheet 2 retreats to carry out primary forward packing, and the push disc 1 and the finger-shaped sheet 2 retreat to return to zero simultaneously.

Table 2:

as can be seen from tables 1 and 2: the fluctuation range of the reverse wrapping end point is reduced from 60mm to 13mm, the product quality and the uniformity are improved, and the intervention of operators in the forward wrapping process is avoided. Meanwhile, in the traditional forward-packaging method, the manual control equipment is adopted to move and measure the grabbing position of the finger-shaped sheet, the forward-packaging time of a single tire is 40min, the position parameters are generated through a calculation formula and used for regulating and controlling the forming machine, the forward-packaging time of the single tire is 13min, the forward-packaging time is greatly improved, and the efficiency is improved.

The present invention has been described in detail, and it should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.