Multi-size spanning assembly secondary method forming drum

Abstract

The invention discloses a multi-size spanning assembly secondary method forming drum which comprises a main shaft, an air cylinder and a sliding seat mechanism, the air cylinder and the sliding seat mechanism are arranged on the main shaft in a sleeving mode, and the sliding seat mechanism comprises a driving sliding sleeve seat and a driven sliding sleeve seat. Inner and outer tile supporting assemblies are distributed on the circumference of the sliding sleeve seat mechanism, and a plurality of inner and outer tile assemblies are distributed on the inner and outer tile supporting assemblies. The driving sliding sleeve seat is fixed on a cylinder outer sleeve of the cylinder; when the cylinder jacket reciprocates along the main shaft, the driving sliding sleeve seat linearly reciprocates along the axial direction of the main shaft along with the cylinder jacket; the driven sliding sleeve seat is fixed on the main shaft; when the driving sliding sleeve base linearly reciprocates in the axial direction of the main shaft, the inner and outer tile supporting assemblies are pushed to move, and then the inner and outer tiles are driven to expand or contract. The mechanism is simple and practical in structure, transmission mechanisms of different cun levels can be achieved on the premise that parts are not replaced, and circles of different cun levels are formed.

Description

Technical Field

[0001] The invention relates to the field of tire manufacturing, in particular to a secondary forming drum for assembling multiple sizes. Background Art

[0002] As tire sales and application range increase, tire quality and condition are of vital importance. A tire that loses its working ability or a sudden drop in tire pressure may lead to traffic accidents, such as brake failure or skidding. Especially when driving at high speeds, if a tire blows out, the vehicle will lose balance or control, which may lead to a serious accident.

[0003] In the tire manufacturing process, the forming drum plays a vital role. The forming drum uses radial contraction movement to prop up the tire raw materials that are regularly attached to its outer layer, and then forms the tire outer shell at the maximum position. Finally, the formed tire is unloaded by contraction movement. Therefore, the dimensional accuracy of the tire forming drum directly affects the quality, performance, accuracy and efficiency of the formed tire embryo. However, since the tire forming drum is a non-standard design, each different manufacturer has different dimensional requirements for the manufacture of the forming drum for different scenarios of tire use, which often requires re-modeling and re-production, resulting in a large waste of manpower and material resources. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings and deficiencies of the above-mentioned prior art and to provide a secondary forming drum that is simple in structure and easy to use and can be assembled across multiple sizes. The diameter of the circle formed by the inner and outer tiles can be adjusted by adjusting the slide mechanism.

[0005] The present invention is achieved through the following technical solutions:

[0006] A multi-size assembling secondary forming drum comprises a main shaft 1, a cylinder 6 and a slide mechanism sleeved on the main shaft 1, wherein the slide mechanism comprises an active slide seat 7 and a driven slide seat 8; inner and outer tile support assemblies are distributed on the circumference of the slide seat mechanism, and a plurality of inner and outer tile assemblies are distributed on the inner and outer tile support assemblies;

[0007] The active sleeve seat 7 is fixed on the cylinder jacket 62 of the cylinder 6; when the cylinder jacket 62 reciprocates along the main shaft 1, the active sleeve seat 7 follows the cylinder jacket 62 and reciprocates in a straight line along the axial direction of the main shaft 1; the driven sleeve seat 8 is fixed on the main shaft 1;

[0008] When the active sleeve seat 7 reciprocates linearly along the axial direction of the main shaft 1, it pushes the inner and outer wall support assemblies to move, thereby driving the inner and outer walls to expand or contract.

[0009] The inner and outer tile support assembly includes an inner tile drive rod and an outer tile drive rod; the inner and outer tile assembly includes an inner tile 5 and an outer tile 2;

[0010] The inner tile drive rod and the outer tile drive rod are hinged to the circumference of the sliding sleeve seat mechanism in an interlaced form; the inner tile 5 and the outer tile 2 are respectively installed on the inner tile drive rod and the outer tile drive rod.

[0011] The outer tile drive rod includes an outer tile main support rod 306, an outer tile secondary support rod 3061, an outer tile side support rod 307 and an outer tile guide rail 301; the outer tile 2 is installed on the outside of the outer tile guide rail 301; a first outer tile slider 305 and a second outer tile slider 3051 are installed on the inner track of the outer tile guide rail 301; a fixed block 302 is provided at the end of the track of the outer tile guide rail 301;

[0012] One end of the outer tile main support rod 306 is hinged to the active sliding sleeve seat 7, and the other end is hinged to the fixed block 302;

[0013] One end of the outer tile secondary support rod 3061 is hinged to the driven sliding sleeve seat 8, and the other end is hinged to the second outer tile slider 3051; one end of the outer tile side support rod 307 is hinged to the active sliding sleeve seat 7, and the other end is hinged to the first outer tile slider 305.

[0014] The inner tile drive rod includes an inner tile main support rod 404, an inner tile secondary support rod 403, a support moving rod 405, an inner tile guide rail 401, a first moving slider 402 and a second moving slider 4031; the inner tile 5 is installed on the outside of the inner tile guide rail 401; the first moving slider 402 and the second moving slider 4031 are installed on the inside of the inner tile guide rail 401;

[0015] One end of the inner tile secondary support rod 403 is hinged to the driven sliding sleeve seat 8, and the other end is hinged to the second moving slider 4031;

[0016] One end of the inner tile main support rod 404 is hinged to the active sliding sleeve seat 7, and the other end is hinged to the middle of the inner tile secondary support rod 403;

[0017] One end of the support moving rod 405 is hinged to the first moving slider 402, and the other end is hinged to the middle of the inner tile secondary support rod 403.

[0018] The hinged manner of the active sliding sleeve seat 7 and the inner tile main support rod 404 is that a plurality of rectangular protrusions 71 are arrayed on the outer edge of the active sliding sleeve seat 7, and strip-shaped chutes 72 are provided on the corresponding sides of each rectangular protrusion 71; a slider is installed at one end of the inner tile main support rod 404, and the slider is placed in the strip-shaped chute 72; the end of the inner tile main support rod 404 is connected to the slider by a hinge; the slider can move up and down in the strip-shaped chute 72;

[0019] Inside the active sliding sleeve base 7, corresponding to the position of the strip-shaped sliding groove 72, there is a cavity. Inside the cavity, there is a push rod 73. On the inner side of the active sliding sleeve base 7, there is a cam 703. Corresponding to the push rod 73 on the cam 703, there are a plurality of stepped platforms 731 with different heights. The lower end of the push rod 73 abuts against the stepped platform 731, and the upper end of the push rod 73 abuts against the slider. When the cam 703 rotates, the stepped platforms 731 with different heights push the push rod 73, and the push rod 73 then pushes the slider, thereby changing the position of the slider in the strip-shaped sliding groove 72. Finally, through the stretching posture of the inner tile main support rod 404, the diameter of the circle formed by the plurality of inner tiles 5 is enlarged or reduced, so as to obtain a circle of different sizes.

[0020] A slot is provided on the back of the inner tile 5, and the inner tile guide rail 401 is placed in the slot.

[0021] The inner tile 5 is divided into a detachable structure assembled by three tiles. The tiles located at both ends are used as the drum shoulder sections, and the tile located in the middle is the drum middle section. The connection between them adopts a tenon and mortise or pin structure.

[0022] A central guide disk 304 is sleeved on one side of the driven sliding sleeve base 8. A plurality of guide holes and guide rods are arranged in an array on the circumference of the central guide disk 304. The guide rods include an inner tile guide rod 4002 and an outer tile guide rod 303.

[0023] One end of the inner tile guide rod 4002 is fixed to the end of the inner tile guide rail 401, and the other end is placed in the guide hole in a movable manner.

[0024] One end of the outer tile guide rod 303 is fixed to the end of the outer tile guide rail 301, and the other end is placed in the guide hole in a movable manner.

[0025] A through hole is provided on the active sliding sleeve base 7. A plurality of positioning holes are successively provided in the axial direction of the main shaft 1. A pin shaft can be inserted between the through hole and the positioning hole. The through holes on the active sliding sleeve base 7 are respectively inserted with pin shafts corresponding to different positioning holes on the main shaft 1 to fix the position of the active sliding sleeve base 7 on the main shaft 1.

[0026] The present invention has the following advantages and effects compared with the prior art:

[0027] When the active sliding sleeve base 7 of the present invention moves linearly back and forth along the axial direction of the main shaft 1, it pushes the inner and outer tile support components to move, thereby driving the inner and outer tiles to expand or contract.

[0028] The outer tile support component of the present invention is a scissor mechanism. Considering the characteristics of the support rods, the outer tile side support rod 307 is added. At the same time, the outer tile main support rod 306 connecting the scissor structure and the outer tile guide rail 301 is fixed through the fixing block 302, which limits the displacement of the outer tile guide rail 301 and increases the feasibility of the structure.

[0029] The inner tile 5 of the present invention is a detachable structure assembled by three tiles. The tiles at both ends are used as the drum shoulder sections, and the tile in the middle is the drum middle section. The connection between them adopts a tenon and mortise or pin structure. When adjusting the width of the forming drum, it can be directly removed and replaced, which reduces the processing procedures and the interchangeability of parts.

[0030] A through hole is provided on the active sliding sleeve seat 7 of the present invention. A plurality of positioning holes are successively provided in the axial direction of the main shaft 1. A pin shaft can be inserted between the through hole of the active sliding sleeve seat 7 and the positioning hole 64; the through holes on the active sliding sleeve seat 7 are respectively inserted with pin shafts corresponding to different positioning holes on the main shaft 1 to fix the position of the active sliding sleeve seat 7 on the main shaft 1, and further fix the active sliding sleeve seat 7 at the required position on the main shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the expanded state of the multi-size assembly secondary forming drum of the present invention.

[0032] Figure 2 It is a schematic diagram of the contracted state of the multi-size assembly secondary forming drum of the present invention.

[0033] Figure 3 It is a schematic diagram of the structure of the outer tile support component of the present invention.

[0034] Figure 4 It is a schematic diagram of the structure of the inner tile support component of the present invention.

[0035] Figure 5 It is Figure 4 Another perspective schematic diagram of the structure of the inner tile support component.

[0036] Figure 6 It is a schematic diagram of the cylinder structure.

[0037] Figure 7 It is Figure 6 A schematic diagram of the sectional structure along A-A.

[0038] Figure 8 It is a schematic diagram of the structure of the active rod sliding seat 7.

[0039] Figure 9 It is Figure 8 A partial sectional schematic diagram of the active rod sliding seat 7.

[0040] Figure 10 It is Figure 8Another partial cross-sectional structure schematic diagram.

[0041] Figure 11 It is a schematic diagram of a cam structure. Specific implementation manners

[0042] The present invention will be further specifically and detailedly described below in conjunction with specific embodiments.

[0043] As shown in the figure. The present invention discloses a multi-size assembly secondary forming drum, which includes a main shaft 1, and a cylinder 6 and a slide seat mechanism sleeved on the main shaft 1. The slide seat mechanism includes a driving slide sleeve seat 7 and a driven slide sleeve seat 8; on the circumference of the slide sleeve seat mechanism, an inner and outer tile support assembly is distributed, and a plurality of inner and outer tile assemblies are distributed on the inner and outer tile support assembly;

[0044] The driving slide sleeve seat 7 is fixed on the cylinder jacket 62 of the cylinder 6; when the cylinder jacket 62 reciprocates along the main shaft 1, the driving slide sleeve seat 7 follows the cylinder jacket 62 and linearly reciprocates along the axial direction of the main shaft 1; the driven slide sleeve seat 8 is fixed on the main shaft 1;

[0045] When the driving slide sleeve seat 7 linearly reciprocates along the axial direction of the main shaft 1, it pushes the inner and outer tile support assembly to move, and further drives the inner and outer tiles to expand or contract.

[0046] The inner and outer tile support assembly includes an inner tile transmission rod and an outer tile transmission rod; the inner and outer tile assemblies include an inner tile 5 and an outer tile 2;

[0047] The inner tile transmission rod and the outer tile transmission rod are hinged on the circumference of the slide sleeve seat mechanism in an interlaced form; the inner tile 5 and the outer tile 2 are respectively installed on the inner tile transmission rod and the outer tile transmission rod.

[0048] The outer tile transmission rod includes an outer tile main support rod 306, an outer tile secondary support rod 3061, an outer tile side support rod 307 and an outer tile guide rail 301; the outer tile 2 is installed on the outside of the outer tile guide rail 301; on the inner track of the outer tile guide rail 301, a first outer tile slider 305 and a second outer tile slider 3051 are installed; at the end of the track of the outer tile guide rail 301, a fixed block 302 is provided;

[0049] One end of the outer tile main support rod 306 is hinged to the driving slide sleeve seat 7, and the other end is hinged to the fixed block 302;

[0050] One end of the outer tile secondary support rod 3061 is hinged to the driven slide sleeve seat 8, and the other end is hinged to the second outer tile slider 3051; one end of the outer tile side support rod 307 is hinged to the driving slide sleeve seat 7, and the other end is hinged to the first outer tile slider 305.

[0051] The outer tile support assembly is a scissor mechanism. Considering the characteristics of the support rods, the outer tile side support rod 307 is added. At the same time, the outer tile main support rod 306 connecting the scissor structure and the outer tile guide rail 301 is fixed by the fixing block 302, which limits the displacement of the outer tile guide rail 301 and increases the feasibility of the structure.

[0052] The inner tile transmission rod includes an inner tile main support rod 404, an inner tile secondary support rod 403, a support moving rod 405, an inner tile guide rail 401, a first moving slider 402, and a second moving slider 4031; the inner tile 5 is installed on the outer side of the inner tile guide rail 401; the first moving slider 402 and the second moving slider 4031 are installed on the inner side of the inner tile guide rail 401;

[0053] One end of the inner tile secondary support rod 403 is hinged to the driven sliding sleeve seat 8, and the other end is hinged to the second moving slider 4031;

[0054] One end of the inner tile main support rod 404 is hinged to the active sliding sleeve seat 7, and the other end is hinged to the middle of the inner tile secondary support rod 403;

[0055] One end of the support moving rod 405 is hinged to the first moving slider 402, and the other end is hinged to the middle of the inner tile secondary support rod 403.

[0056] The hinged manner of the active sliding sleeve seat 7 and the inner tile main support rod 404 is that a plurality of rectangular protrusions 71 are arrayed on the outer edge of the active sliding sleeve seat 7, and strip-shaped chutes 72 are provided on the corresponding sides of each rectangular protrusion 71; a slider is installed at one end of the inner tile main support rod 404, and the slider is placed in the strip-shaped chute 72; the end of the inner tile main support rod 404 is connected to the slider by a hinge; the slider can move up and down in the strip-shaped chute 72;

[0057] Inside the active sliding sleeve seat 7, at the position corresponding to the strip-shaped chute 72, there is a cavity, and a push rod 73 is placed in the cavity. A cam 703 is provided on the inner side of the active sliding sleeve seat 7. A plurality of stepped platforms 731 with different heights are provided on the cam 703 corresponding to the push rod 73. The lower end of the push rod 73 abuts against the stepped platform 731, and the upper end of the push rod 73 abuts against the slider; when the cam 703 rotates, the stepped platforms 731 with different heights push the push rod 73, the push rod 73 then pushes the slider, thereby changing the position of the slider in the strip-shaped chute 72, and finally through the extension posture of the inner tile main support rod 404, further making the diameter of the circle formed by the plurality of inner tiles 5 become larger or smaller to obtain a circle of different sizes.

[0058] A slot is provided on the back of the inner tile 5, and the inner tile guide rail 401 is placed in the slot;

[0059] The inner tile 5 is divided into a detachable structure assembled by three tiles. The tiles at both ends serve as the drum shoulder sections, and the tile in the middle serves as the drum middle section. The connection between them adopts a mortise and tenon or pin structure. When adjusting the width of the forming drum, it can be directly removed and replaced, which reduces the processing procedures and the interchangeability of parts.

[0060] A central guide disk 304 is sleeved on one side of the driven sliding sleeve seat 8. A plurality of guide holes and guide rods 303 are arrayed on the circumference of the central guide disk 304; the guide rods include an inner tile guide rod 4002 and an outer tile guide rod 303; in the moving state, the central disk 304 can play roles such as stabilizing the operation of the mechanism and limiting the degrees of freedom.

[0061] One end of the inner tile guide rod 4002 is fixed to the end of the inner tile guide rail 401, and the other end is movably placed in the guide hole.

[0062] One end of the outer tile guide rod 303 is fixed to the end of the outer tile guide rail 301, and the other end is movably placed in the guide hole.

[0063] A through hole is provided on the active sliding sleeve seat 7. A plurality of positioning holes are successively provided in the axial direction of the main shaft 1. A pin shaft can be inserted between the through hole on the active sliding sleeve seat 7 and the positioning hole 64; the through holes on the active sliding sleeve seat 7 respectively correspond to different positioning holes on the main shaft 1 to insert the pin shaft, so as to fix the position of the active sliding sleeve seat 7 on the main shaft 1, and further fix the active sliding sleeve seat 7 at the required position on the main shaft. Figure 6 In it, 61 is a piston, 62 is the outer wall of the cylinder, 63 is the inner wall of the cylinder, and 64 is a positioning hole.

[0064] When the cylinder 6 of the present invention drives the active sliding sleeve seat 7 to perform a linear reciprocating motion along the axial direction of the main shaft 1, it pushes the inner and outer tile support assemblies to move, and further drives the inner and outer tiles to expand or contract, forming circles with different diameters.

[0065] As described above, the present invention can be preferably realized.

[0066] The implementation manners of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement manners and are all included in the protection scope of the present invention.

Claims

1. A multi-size assembling secondary forming drum, comprising a main shaft (1), and a cylinder (6) and a slide mechanism sleeved on the main shaft (1), characterized in that: The sliding seat mechanism comprises an active sliding sleeve seat (7) and a driven sliding sleeve seat (8); inner and outer tile support assemblies are distributed on the circumference of the sliding sleeve seat mechanism, and a plurality of inner and outer tile assemblies are distributed on the inner and outer tile support assemblies; The active sleeve seat (7) is fixed on the cylinder jacket (62) of the cylinder (6); when the cylinder jacket (62) reciprocates along the main shaft (1), the active sleeve seat (7) follows the cylinder jacket (62) and reciprocates in a straight line along the axial direction of the main shaft (1); the driven sleeve seat (8) is fixed on the main shaft (1); When the active sliding sleeve seat (7) moves linearly back and forth along the axial direction of the main shaft (1), it pushes the inner and outer tile support components to move, thereby driving the inner and outer tiles to expand or contract.

2. The multi-size assembly secondary forming drum according to claim 1, characterized in that: The inner and outer tile support assembly comprises an inner tile transmission rod and an outer tile transmission rod; the inner and outer tile assembly comprises an inner tile (5) and an outer tile (2); The inner tile transmission rod and the outer tile transmission rod are hinged on the circumference of the sliding sleeve seat mechanism in a staggered manner; the inner tile (5) and the outer tile (2) are respectively mounted on the inner tile transmission rod and the outer tile transmission rod.

3. The multi-size assembly secondary forming drum according to claim 2, characterized in that: The outer tile transmission rod comprises an outer tile main support rod (306), an outer tile secondary support rod (3061), an outer tile side support rod (307) and an outer tile guide rail (301); the outer tile (2) is mounted on the outer side of the outer tile guide rail (301); a first outer tile slider (305) and a second outer tile slider (3051) are mounted on the inner track of the outer tile guide rail (301); a fixing block (302) is provided at the end of the track of the outer tile guide rail (301); One end of the outer shoe main support rod (306) is hinged to the active sliding sleeve seat (7), and the other end is hinged to the fixed block (302); One end of the outer shoe secondary support rod (3061) is hinged to the driven sliding sleeve seat (8), and the other end is hinged to the second outer shoe slider (3051); one end of the outer shoe side support rod (307) is hinged to the active sliding sleeve seat (7), and the other end is hinged to the first outer shoe slider (305).

4. The multi-size assembly secondary forming drum according to claim 2, characterized in that: The inner tile transmission rod comprises an inner tile main support rod (404), an inner tile secondary support rod (403), a support moving rod (405), an inner tile guide rail (401), a first moving slider (402) and a second moving slider (4031); the inner tile (5) is installed on the outer side of the inner tile guide rail (401); the first moving slider (402) and the second moving slider (4031) are installed on the inner side of the inner tile guide rail (401); One end of the inner sleeve secondary support rod (403) is hinged to the driven sliding sleeve seat (8), and the other end is hinged to the second movable sliding block (4031); One end of the inner bearing main support rod (404) is hinged to the active sliding sleeve seat (7), and the other end is hinged to the middle part of the inner bearing secondary support rod (403); One end of the supporting movable rod (405) is hinged to the first movable slider (402), and the other end is hinged to the middle part of the inner support rod (403).

5. The multi-size assembly secondary forming drum according to claim 4, characterized in that: The active sleeve seat (7) and the inner bearing main support rod (404) are hinged in the following manner: a plurality of rectangular protrusions (71) are distributed in an array on the outer edge of the active sleeve seat (7), and a strip-shaped slide groove (72) is provided on the corresponding side opening of each rectangular protrusion (71); a slider is installed at one end of the inner bearing main support rod (404), and the slider is placed in the strip-shaped slide groove (72); the end of the inner bearing main support rod (404) is connected to the slider via a hinge; the slider can move up and down in the strip-shaped slide groove (72); The active sleeve seat (7) has a cavity inside, corresponding to the position of the strip slide groove (72), a push rod (73) is built in the cavity, a cam (703) is provided on the inner side of the active sleeve seat (7), a plurality of stepped platforms (731) of different heights are provided on the cam (703) corresponding to the push rod (73), the lower end of the push rod (73) abuts against the stepped platform (731), and the upper end of the push rod (73) abuts against the slider; when the cam (703) is rotated, the stepped platforms (731) of different heights push the push rod (73), and the push rod (73) pushes the slider, thereby changing the position of the slider in the strip slide groove (72), and finally, through the extension posture of the inner tile main support rod (404), the diameter of the circle surrounded by the plurality of inner tiles (5) is enlarged or reduced, so as to obtain a circle of different sizes.

6. The multi-size assembling secondary forming drum according to claim 4, characterized in that: The inner tile (5) has a slot on its back, and the inner tile guide rail (401) is placed in the slot; The inner tile (5) is divided into a detachable three-tile assembly structure, wherein the tiles at the two ends serve as drum shoulder sections, and the tile in the middle serves as the drum middle section, and the joints between them are connected by a mortise and tenon or latch-type structure.

7. The multi-size assembly secondary forming drum according to claim 4, characterized in that: A central guide disc (304) is sleeved on one side of the driven sliding sleeve seat (8), and a plurality of guide holes and guide rods are arranged in an array on the circumference of the central guide disc (304); the guide rods include an inner shoe guide rod (4002) and an outer shoe guide rod (303); One end of the inner bearing guide rod (4002) is fixed to the end of the inner bearing guide rail (401), and the other end is movably placed in the guide hole; One end of the outer shoe guide rod (303) is fixed to the end of the outer shoe guide rail (301), and the other end is movably placed in the guide hole.

8. The multi-size assembly secondary forming drum according to claim 2, characterized in that: The active sleeve seat (7) is provided with a through hole, and a plurality of positioning holes are sequentially provided in the axial direction of the main shaft (1), and a pin can be inserted between the through hole and the positioning holes; the through holes on the active sleeve seat (7) correspond to different positioning holes on the main shaft (1), and pins are inserted into the through holes, respectively, so as to fix the position of the active sleeve seat (7) on the main shaft (1).

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