CN110948924B - Radial tire reverse-wrapping capsule device and capsule body preparation method thereof - Google Patents

Radial tire reverse-wrapping capsule device and capsule body preparation method thereof Download PDF

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Publication number
CN110948924B
CN110948924B CN201911364649.0A CN201911364649A CN110948924B CN 110948924 B CN110948924 B CN 110948924B CN 201911364649 A CN201911364649 A CN 201911364649A CN 110948924 B CN110948924 B CN 110948924B
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China
Prior art keywords
sub
bladder
turn
capsule
cavity
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CN110948924A (en
Inventor
赵会岩
刘海军
赵海林
张学永
刘涛
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Yongyi Rubber Co ltd
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Yongyi Rubber Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/24—Drums
    • B29D30/26—Accessories or details, e.g. membranes, transfer rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0662—Accessories, details or auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0662—Accessories, details or auxiliary operations
    • B29D2030/0675—Controlling the vulcanization processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/24—Drums
    • B29D30/26—Accessories or details, e.g. membranes, transfer rings
    • B29D2030/2614—Bladders associated with the building drum, e.g. bladders used for the toroidal expansion, bladders for turning-up the plies

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)

Abstract

The invention discloses a radial tire turn-up bladder device and a bladder body preparation method thereof, wherein the turn-up bladder device comprises a bladder body and a seam allowance mechanism; the bag body comprises an outer bag body, a first inner bag body, a second inner bag body, a first sub-opening end, a second sub-opening end and an inner cavity; the outer surfaces of the first inner capsule body and the second inner capsule body are respectively provided with a first rubber soft magnetic sheet and a second rubber soft magnetic sheet; a first hard rubber core and a second hard rubber core are respectively arranged in the first sub-port end and the second sub-port end; an air inlet cavity and an air inlet sub-cavity are arranged in the body of the sub-port mechanism, the tail end of the air inlet sub-cavity is provided with an air outlet, and two sides of the air outlet are respectively provided with a first bag body clamping groove, a second bag body clamping groove, a first sliding wedge block, a second sliding wedge block, a first anti-wrapping baffle and a second anti-wrapping baffle; the first reverse-wrapping baffle and the second reverse-wrapping baffle are made of magnetic metal materials. The turn-up bladder device provided by the invention has good air tightness, can be quickly and automatically reset, and can be used for producing a tire blank with stable quality and high use safety.

Description

Radial tire reverse-wrapping capsule device and capsule body preparation method thereof
Technical Field
The invention relates to the technical field of tire molding, in particular to a radial tire turn-up bladder device and a bladder body preparation method thereof.
Background
At present, a forming drum used on a radial tire forming machine is mainly divided into: the mechanical forming drum and the capsule forming drum have the difference that the expansion mode of the tire side wall is different when the tire side wall is turned up. The circumferential stretch of the sidewalls of the bladder forming drum is more uniform than that of a mechanical forming drum, and therefore, most manufacturers manufacture the outer tire of the tire by using the bladder forming drum. The turn-up bladder used on the bladder forming drum can be uniformly expanded under a certain air pressure, and the tyre body cord fabric arranged on the bladder forming drum is uniformly turned up and compacted by a push disc of the forming machine through the bladder, so that the steel wire ring at the tyre bead part of the tyre and the cord fabric layer have no delaminating and no bubble phenomenon.
In the turn-up process, the turn-up capsule material has the properties of stress relaxation and creep effect, which can cause the phenomenon that the formed turn-up capsule can not automatically and normally reset after exhausting. The turn-up bladder which is not normally reset can cause the tire bead part to be not compacted to form collapse and produce waste products, and if the turn-up bladder is manually intervened by operators to reset, the labor intensity is increased and the production efficiency is reduced.
In addition, the turn-up bladder needs to be inflated and expanded when in use, and the push disc pushes the turn-up bladder to turn up the tire blank, so that the requirement on the air tightness of the turn-up bladder during operation is high. The air tightness of the turn-up bladder is poor, the bladder leaks air in the production and processing process, the turn-up efficiency is reduced, more energy is consumed, the tire bead part is not tightly pressed, the delamination phenomenon occurs, and the service life and the driving safety of the tire are affected. At present, turn-up capsule is usually directly on the capsule fixing base of locating the shaping drum, turn-up capsule rim of mouth part is sealed, let in gas in to turning-up capsule through the gas vent on the capsule fixing base and make it expand, the capsule fixing base is generally the metal material, the leakproofness is poor between soft turn-up capsule and the capsule fixing base of stereoplasm, at the in-process of turning up of aerifing, the rim of mouth both ends of turning up the capsule are deviate from or the part is deviate from the capsule seat easily, lead to gas leakage, thereby influence production efficiency and product quality, the manual turn-up capsule that will deviate from of workman fastens again, the human cost has been improved when having wasted the time.
In summary, the reverse-wrapping capsule is difficult to reset and poor in sealing performance, and is a problem to be solved urgently at present.
Disclosure of Invention
In order to solve the problems, the invention provides a radial tire turn-up bladder device, which comprises a bladder body and a seam allowance mechanism;
the bag body comprises an outer bag body, and two ends of the outer bag body are respectively bent by 180 degrees to be connected with a first inner bag body and a second inner bag body; the other end of the first inner bag body is connected with the first sub-opening end, and the other end of the second inner bag body is connected with the second sub-opening end; the outer bag body, the first inner bag body, the second inner bag body, the first sub-port end and the second sub-port end are encircled to form an inner cavity of the bag body; the outer surfaces of the first inner capsule body and the second inner capsule body are respectively provided with a first rubber soft magnetic sheet and a second rubber soft magnetic sheet; a first hard rubber core and a second hard rubber core are respectively arranged inside the first sub-port end and the second sub-port end;
the sub-port mechanism comprises a cylindrical body which is transversely placed, an air inlet cavity and an air inlet sub-cavity communicated with the air inlet cavity are arranged in the body, the tail end of the air inlet sub-cavity is an air outlet which extends into the inner cavity of the bag body, a first bag body clamping groove and a second bag body clamping groove which clamp the first sub-port end and the second sub-port end are respectively arranged on two sides of the air outlet, and a first sliding wedge block and a second sliding wedge block which are identical in structure are respectively arranged at the bottoms of the first bag body clamping groove and the second bag body clamping groove; a first anti-wrapping baffle and a second anti-wrapping baffle are respectively arranged on the outer sides of the first sliding wedge block and the second sliding wedge block; the first anti-wrapping baffle comprises a first supporting plate for supporting the first inner bag body, a first push plate for pushing the first sliding wedge block and a first curved surface for connecting the first supporting plate and the first push plate; the first push plate is provided with a bolt for adjusting the distance between the first push plate and the body; the second turn-up baffle comprises a second supporting plate for supporting the second inner bag body, a second push plate for pushing the second sliding wedge block and a second curved surface for connecting the second supporting plate and the second push plate; the second push plate is provided with a bolt for adjusting the distance between the second push plate and the body; the first reverse-wrapping baffle and the second reverse-wrapping baffle are made of magnetic metal materials;
the body is transversely fixed on the fixing base which can axially stretch out and draw back, and the fixing base comprises a telescopic rod and an air pipe connected with an air inlet cavity of the body.
Preferably, the axial length of the first inner balloon is less than the axial length of the second inner balloon.
Preferably, the first hard rubber core and the second hard rubber core are cylindrical steel rubber cores.
Preferably, the top and the inner side wall of the groove in the first capsule clamping groove and the second capsule clamping groove are respectively provided with an arc-shaped groove matched with the shape of the first sub-port end and the second sub-port end.
Preferably, the upper surfaces of the first sliding wedge block and the second sliding wedge block are respectively provided with an arc-shaped groove matched with the shapes of the first sub-port end and the second sub-port end.
Preferably, the air inlet cavity is a cylindrical cavity formed along the axial direction of the body, and the air inlet sub-cavity is a cylindrical cavity formed along the radial direction of the body.
Preferably, one side of the first sub-port end, which is connected with the first inner capsule body, is an arc-shaped inclined plane, and the other side of the first sub-port end is a cylinder containing the first hard rubber core; one side of the second sub-port end, which is connected with the second inner capsule body, is an arc-shaped inclined plane, and the other side of the second sub-port end is a cylinder containing a second hard rubber core; the first curved surface is an arc surface matched with the shape of the first sub-opening end, and the second curved surface is an arc surface matched with the shape of the second sub-opening end.
Preferably, the first soft rubber magnetic sheet is arranged between the joint of the first sub-port end and the first inner bag body and the midpoint of the first inner bag body; the second soft rubber magnet sheet is arranged between the joint of the second sub-port end and the second inner capsule body and the midpoint of the second inner capsule body.
Preferably, the capsule material structure sequentially comprises an inner adhesive layer, a reinforcing framework layer, an outer adhesive layer and an anti-sticking layer from inside to outside.
Preferably, the reinforcing framework layer is nylon rubberized cord fabric; the anti-sticking layer is anti-sticking cloth.
The preparation method of the capsule body of the radial tire turn-up capsule device comprises the following steps:
s1, paving an inner rubber layer rubber sheet, a reinforced framework layer framework material and an outer rubber layer rubber sheet on the die from inside to outside in sequence, and reserving the width of a seam allowance;
s2, respectively wrapping a first hard rubber core and a second hard rubber core at the positions of the first sub-mouth end and the second sub-mouth end, and pressing the shapes of the sub-mouths;
s3, folding the adhered materials, pressing the seam allowance for shaping, and adhering anti-sticking cloth on the outer surface of the bag body;
s4, putting the mold into a vulcanizing tank for vulcanizing, wherein the vulcanizing time is 60-120min, and the vulcanizing temperature is 150-160 ℃;
and S5, opening the mold after vulcanization, taking out the bag body, cooling, removing the figured cloth, and finishing the redundant rubber material.
And S6, respectively sticking a first rubber soft magnetic sheet and a second rubber soft magnetic sheet on the outer surfaces of the first inner bag body and the second inner bag body.
Compared with the prior art, the invention has the beneficial effects that:
1. the turn-up capsule device provided by the invention can be quickly and automatically reset in the air release process after the capsule body is expanded, so that the normal working state of the turn-up capsule is ensured, and the time and labor cost consumed by manual reset are reduced;
2. the air tightness is excellent, the hard rubber core is coated at the seam allowance end of the body of the turn-up capsule, air leakage caused by deformation during sealing can be resisted, the seam allowance mechanism is arranged at the seam allowance end of the turn-up capsule, the seam allowance end of the turn-up capsule is firmly clamped into the clamping groove of the seam allowance mechanism through the wedge block, and the capsule is effectively prevented from falling off;
3. the outer side of the first inner capsule body and the second inner capsule body is provided with the soft magnetic rubber sheet, the soft magnetic sheet and the first reverse-wrapping baffle made of magnetic metal and the second reverse-wrapping baffle have magnetic adsorption effect, so that the rapid normal resetting of the capsule body after the reverse-wrapping is finished can be ensured, the working efficiency is improved, and meanwhile, the deformation of the capsule body is avoided to produce unqualified tire blanks.
In conclusion, the turn-up bladder device provided by the invention has the advantages of excellent air tightness, quick deformation recovery, high working efficiency, stable quality of the produced tire blank and high use safety.
Drawings
FIG. 1 is a schematic front sectional view of a bladder of the present invention;
FIG. 2 is a schematic sectional front view of the turn-up capsule device;
FIG. 3 is a schematic side sectional view of the sub-mouth mechanism body;
fig. 4 is a schematic diagram of the structure of the capsule material.
Reference numerals:
1. a bag body 2, a seam allowance mechanism 3 and a fixed seat;
101. an inner rubber layer 102, a reinforcing framework layer 103, an outer rubber layer 104 and an anti-sticking layer;
11. an outer balloon body 12, a first inner balloon body 13, a second inner balloon body 14, a first sub-port end 15, a second sub-port end 16 and an inner cavity;
121. the rubber soft magnetic composite material comprises a first rubber soft magnetic sheet 131, a second rubber soft magnetic sheet 141, a first hard rubber core 151 and a second hard rubber core;
21. the body, 22, a first sliding wedge block, 23, a second sliding wedge block, 24, a first turn-up baffle, 25, a second turn-up baffle, 26 and a bolt;
211. the air inlet cavity 212, the air inlet subchamber 213, the air outlet 214, the first capsule clamping groove 215, the second capsule clamping groove 241, the first supporting plate 242, the first curved surface 243, the first push plate 251, the second supporting plate 252, the second curved surface 253 and the second push plate;
31. trachea, 32, telescopic link.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings and examples:
it should be noted that the structures, proportions, sizes, and other dimensions shown in the drawings and described in the specification are only for the purpose of understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined by the following claims, and all modifications of the structures, changes in the proportions and adjustments of the sizes and other dimensions which are within the scope of the disclosure should be understood and encompassed by the present disclosure without affecting the efficacy and attainment of the same.
In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Example 1:
with reference to the attached drawings 1-4, a radial tire turn-up bladder device comprises a bladder body 1 and a seam allowance mechanism 2;
the balloon body 1 comprises an outer balloon body 11, and two ends of the outer balloon body 11 are respectively bent by 180 degrees to be connected with a first inner balloon body 12 and a second inner balloon body 13; the other end of the first inner capsule body 12 is connected with a first sub-port end 14, and the other end of the second inner capsule body 13 is connected with a second sub-port end 15; the outer balloon body 11, the first inner balloon body 12, the second inner balloon body 13, the first sub-port end 14 and the second sub-port end 15 surround to form an inner cavity 16 of the balloon body 1; the outer surfaces of the first inner capsule body 12 and the second inner capsule body 13 are respectively provided with a first rubber soft magnetic sheet 121 and a second rubber soft magnetic sheet 131; a first hard rubber core 141 and a second hard rubber core 151 are respectively arranged inside the first sub-mouth end 14 and the second sub-mouth end 15;
the sub-port mechanism 2 comprises a cylindrical body 21 which is transversely arranged, an air inlet cavity 211 and an air inlet sub-cavity 212 communicated with the air inlet cavity 211 are arranged in the body 21, the tail end of the air inlet sub-cavity 212 is an air outlet 213 which extends into an inner cavity 16 of the capsule body 1, a first capsule clamping groove 214 and a second capsule clamping groove 215 which clamp the first sub-port end 14 and the second sub-port end 15 are respectively arranged at two sides of the air outlet 213, and a first sliding wedge 22 and a second sliding wedge 23 which have the same structure are respectively arranged at the bottoms of the first capsule clamping groove 214 and the second capsule clamping groove 215; a first turn-up baffle 24 and a second turn-up baffle 25 are respectively arranged on the outer sides of the first sliding wedge 22 and the second sliding wedge 23; the first turn-up flap 24 comprises a first support plate 241 supporting the first inner capsule 12, a first push plate 243 pushing the first sliding wedge 22, and a first curved surface 242 connecting the first support plate 241 and the first push plate 243; the first push plate 243 is provided with a bolt 26 for adjusting the distance between the first push plate 243 and the body 21; the second turn-up plate 25 comprises a second support plate 251 supporting the second inner bladder 13, a second push plate 253 pushing the second sliding wedge 23, and a second curved surface 252 connecting the second support plate 251 and the second push plate 253; the second push plate 253 is provided with a bolt 26 for adjusting the distance between the second push plate 253 and the body 21; the first turn-up baffle 24 and the second turn-up baffle 25 are made of magnetic metal materials;
the body 21 is transversely fixed on an axially telescopic fixed seat 3, and the fixed seat 3 comprises a telescopic rod 32 and an air pipe 31 connected with an air inlet cavity 211 of the body 21.
Preferably, the axial length of said first inner bladder 12 is smaller than the axial length of second inner bladder 13.
Preferably, the first hard rubber core 141 and the second hard rubber core 151 are cylindrical steel rubber cores.
Preferably, the top and the inner side wall of the inner groove of the first balloon clamping groove 214 and the second balloon clamping groove 215 are respectively provided with an arc-shaped groove matched with the shape of the first sub-port end 14 and the second sub-port end 15; the upper surfaces of the first sliding wedge 22 and the second sliding wedge 23 are respectively provided with arc-shaped grooves matched with the shapes of the first sub-opening end 14 and the second sub-opening end 15.
Preferably, the air inlet cavity 211 is a cylindrical cavity formed along the axial direction of the body 21, and the air inlet sub-cavity 212 is a cylindrical cavity formed along the radial direction of the body 21.
Preferably, one side of the first sub-port end 14 connected to the first inner bag body 12 is an arc inclined plane, and the other side is a cylinder containing the first hard rubber core 141; one side of the second sub-port end 15 connected with the second inner bag body 13 is an arc-shaped inclined plane, and the other side is a cylinder containing a second hard rubber core 151; the first curved surface 242 is an arc surface matched with the shape of the first sub-mouth end 14, and the second curved surface 252 is an arc surface matched with the shape of the second sub-mouth end 15.
Preferably, the first soft rubber magnet 121 is arranged between the junction of the first sub-mouth end 14 and the first inner capsule 12 and the midpoint of the first inner capsule 12; a second soft rubber magnet 131 is provided between the junction of the second sub-mouth end 15 and the second inner bladder 13 to the mid-point of the second inner bladder 13.
Preferably, the material structure of the capsule body 1 sequentially comprises an inner adhesive layer 101, a reinforcing framework layer 102, an outer adhesive layer 103 and an anti-sticking layer 104 from inside to outside.
Preferably, the reinforcing framework layer 102 is nylon rubberized cord fabric; the anti-sticking layer 104 is an anti-sticking cloth.
The preparation method of the capsule body of the radial tire turn-up capsule device comprises the following steps:
s1, sequentially paving an inner rubber layer 101 rubber sheet, a reinforced framework layer 102 framework material and an outer rubber layer 103 rubber sheet on the die from inside to outside, and reserving the width of a seam allowance;
s2, wrapping a first hard rubber core 141 and a second hard rubber core 151 at the positions of the first sub-mouth end 14 and the second sub-mouth end 15 respectively, and pressing the shapes of the sub-mouths;
s3, folding the adhered materials, pressing the seam allowance for shaping, and adhering anti-sticking cloth on the outer surface of the bag body 1;
s4, putting the mold into a vulcanizing tank for vulcanizing, wherein the vulcanizing time is 60-120min, and the vulcanizing temperature is 150-160 ℃;
and S5, opening the mold after vulcanization, taking out the capsule body 1, cooling, removing the figured cloth, and finishing the redundant rubber material.
S6, adhering the first rubber soft magnetic sheet 121 and the second rubber soft magnetic sheet 131 on the outer surfaces of the first inner bag body 12 and the second inner bag body 13 respectively.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.

Claims (7)

1. The radial tire turn-up bladder device is characterized by comprising a bladder body (1) and a seam allowance mechanism (2);
the balloon body (1) comprises an outer balloon body (11), and two ends of the outer balloon body (11) are respectively bent by 180 degrees to be connected with a first inner balloon body (12) and a second inner balloon body (13); the other end of the first inner capsule body (12) is connected with a first sub-opening end (14), and the other end of the second inner capsule body (13) is connected with a second sub-opening end (15); the outer balloon body (11), the first inner balloon body (12), the second inner balloon body (13), the first sub-port end (14) and the second sub-port end (15) surround to form an inner cavity (16) of the balloon body (1); the outer surfaces of the first inner bag body (12) and the second inner bag body (13) are respectively provided with a first soft rubber magnetic sheet (121) and a second soft rubber magnetic sheet (131); a first hard rubber core (141) and a second hard rubber core (151) are respectively arranged inside the first sub-opening end (14) and the second sub-opening end (15);
the sub-port mechanism (2) comprises a cylindrical body (21) which is transversely arranged, an air inlet cavity (211) and an air inlet sub-cavity (212) communicated with the air inlet cavity (211) are arranged in the body (21), the tail end of the air inlet sub-cavity (212) is provided with an air outlet (213) which extends into an inner cavity (16) of the capsule body (1), two sides of the air outlet (213) are respectively provided with a first capsule body clamping groove (214) and a second capsule body clamping groove (215) which clamp a first sub-port end (14) and a second sub-port end (15), and the bottoms of the first capsule body clamping groove (214) and the second capsule body clamping groove (215) are respectively provided with a first sliding wedge block (22) and a second sliding wedge block (23) which have the same structure; a first turn-up baffle (24) and a second turn-up baffle (25) are respectively arranged on the outer sides of the first sliding wedge (22) and the second sliding wedge (23); the first turning-up baffle (24) comprises a first supporting plate (241) supporting the first inner capsule (12), a first push plate (243) pushing the first sliding wedge (22) and a first curved surface (242) connecting the first supporting plate (241) and the first push plate (243); the first push plate (243) is provided with a bolt (26) for adjusting the distance between the first push plate (243) and the body (21); the second turn-up plate (25) comprises a second supporting plate (251) supporting the second inner capsule (13), a second push plate (253) pushing the second sliding wedge (23) and a second curved surface (252) connecting the second supporting plate (251) and the second push plate (253); the second push plate (253) is provided with a bolt (26) for adjusting the distance between the second push plate (253) and the body (21); the first turn-up baffle (24) and the second turn-up baffle (25) are made of magnetic metal materials;
the body (21) is transversely fixed on an axially telescopic fixed seat (3), and the fixed seat (3) comprises a telescopic rod (32) and an air pipe (31) connected with an air inlet cavity (211) of the body (21);
the axial length of the first inner balloon (12) is smaller than the axial length of the second inner balloon (13);
the first hard rubber core (141) and the second hard rubber core (151) are cylindrical steel rubber cores.
2. The radial tire turn-up bladder device according to claim 1, wherein the top and inner side walls of the inner grooves of the first bladder clamping groove (214) and the second bladder clamping groove (215) are respectively provided with arc-shaped grooves matched with the shapes of the first sub-port end (14) and the second sub-port end (15); the upper surfaces of the first sliding wedge block (22) and the second sliding wedge block (23) are respectively provided with an arc-shaped groove matched with the shapes of the first sub-opening end (14) and the second sub-opening end (15).
3. The radial tire turn-up bladder device according to claim 1, wherein the air inlet cavity (211) is a cylindrical cavity which is opened along the axial direction of the body (21), and the air inlet sub-cavity (212) is a cylindrical cavity which is opened along the radial direction of the body (21).
4. The radial tire turn-up bladder device according to claim 1, wherein one side of the first sub-port end (14) connected with the first inner bladder body (12) is an arc-shaped inclined surface, and the other side is a cylinder containing the first hard rubber core (141); one side of the second sub-port end (15) connected with the second inner bag body (13) is an arc inclined plane, and the other side is a cylinder containing a second hard rubber core (151); the first curved surface (242) is an arc surface matched with the shape of the first sub-opening end (14), and the second curved surface (252) is an arc surface matched with the shape of the second sub-opening end (15).
5. A radial tire turn-up bladder device according to claim 1, wherein the first soft rubber magnetic sheet (121) is arranged between the connection point of the first sub-port end (14) and the first inner bladder body (12) to the midpoint of the first inner bladder body (12); the second soft rubber magnet sheet (131) is arranged between the connection point of the second sub-opening end (15) and the second inner bag body (13) and the midpoint of the second inner bag body (13).
6. The radial tire turn-up bladder device according to claim 1, wherein the material structure of the bladder body (1) comprises an inner rubber layer (101), a reinforcing framework layer (102), an outer rubber layer (103) and an anti-sticking layer (104) from inside to outside in sequence.
7. The radial tire turn-up bladder device according to claim 6, wherein the reinforcing framework layer (102) is a nylon rubberized cord fabric; the anti-sticking layer (104) is anti-sticking cloth.
CN201911364649.0A 2019-12-26 2019-12-26 Radial tire reverse-wrapping capsule device and capsule body preparation method thereof Active CN110948924B (en)

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CN100480029C (en) * 2006-11-03 2009-04-22 益阳新华美机电科技有限公司 Reverse-wrapped capsule apparatus of tyre former
CN105818408B (en) * 2016-05-13 2019-01-18 中策橡胶集团有限公司 A kind of tyre moulding capsules device and preparation method thereof
CN211416380U (en) * 2019-12-26 2020-09-04 永一橡胶有限公司 Radial tire turn-up capsule device

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