CN109203534B - Secondary radial expansion type forming drum - Google Patents
Secondary radial expansion type forming drum Download PDFInfo
- Publication number
- CN109203534B CN109203534B CN201811242386.1A CN201811242386A CN109203534B CN 109203534 B CN109203534 B CN 109203534B CN 201811242386 A CN201811242386 A CN 201811242386A CN 109203534 B CN109203534 B CN 109203534B
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- cylinder
- expansion
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- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 230000033001 locomotion Effects 0.000 claims description 9
- 230000008602 contraction Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tyre Moulding (AREA)
Abstract
The invention relates to the technical field of rubber tire building machinery, in particular to a secondary radial expansion type building drum, which comprises a horizontally placed main shaft, an adjustable outer side turn-up mechanism, a positioning disk, an adjustable primary expansion cylinder, an adjustable secondary expansion cylinder, a limiting block and an adjustable inner side turn-up mechanism which are distributed on the main shaft from left to right.
Description
Technical Field
The invention belongs to the technical field of rubber tire forming machinery, and particularly relates to a secondary radial expansion forming drum.
Background
With the continuous growth of domestic mountain bicycles, the tire manufacturing industry of bicycles is also growing, the demand for tire manufacturing equipment is also increasing, and higher requirements are also put on the quality and the function of the equipment. A building drum segment is a standard component of tire manufacturing equipment and plays an important role in the building of tires. Radial single-tile double-cylinder is adopted in the mountain bicycle tire building drum in the market, and multiple groups of cylinders are driven simultaneously to realize secondary drum expansion, but the defects of poor drum tile synchronism, overweight drum weight and unadjustable secondary drum expansion exist. Such as a secondary radially expandable drum of CN 03259434.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a secondary radial expansion type forming drum which is ingenious in structure, adopts a set of axial two-section separation cylinder driving drum tiles to replace a plurality of groups of two-section cylinders to realize secondary expansion, solves the problem of synchronism of the drum tiles of the plurality of groups of cylinders, reduces the number of the cylinders, effectively reduces the weight, reduces the load of a main shaft, reduces the inertia generated during rotation production, and improves the quality of a produced tire body by introducing a linear guide rail to improve the circumferential precision.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows: the utility model provides a pair of secondary radial expansion formula shaping drum, including the main shaft that the level was placed and from left to right distribute in main epaxial adjustable outside anti-package mechanism, positioning disk, adjustable primary drum cylinder that rises, adjustable secondary drum cylinder that rises, stopper, adjustable inboard anti-package mechanism, the outside of adjustable secondary drum cylinder that rises is provided with the drum tile support, the inboard of drum tile support is oblique conical surface and forms sliding connection with adjustable secondary drum cylinder that rises, the right-hand and the stopper of drum tile support form sliding connection, radial motion is done to drum tile support under stopper and adjustable secondary drum cylinder that rises, drum tile support outside is fixed with the drum tile.
Preferably, the positioning disk is fixedly connected with the main shaft, the adjustable primary expansion cylinder consists of a rear end cover, a front end cover and a primary expansion limiting screw rod, the rear end cover is fixedly connected with the positioning disk, the front end cover is in sliding connection with the main shaft and can axially move on the main shaft, the tail end of the primary expansion limiting screw rod is in adjustable threaded connection with the positioning disk, the middle section is in sliding connection with the outer side of the front end cover, and the head end of the primary expansion limiting screw rod limits the maximum sliding travel of the front end cover.
Preferably, the adjustable secondary drum that rises cylinder comprises cylinder barrel, first piston and secondary drum limit screw, first piston sets up inside the cylinder barrel and fixes on the main shaft surface, the cylinder barrel realizes axial back and forth movement through the expansion or the shrink in the left and right space of first piston, the cylinder barrel realizes axial movement through the promotion of front end cover, the one end and the stopper of secondary drum limit screw are adjustable threaded connection, the other end stretches out to cylinder barrel direction.
Preferably, the outer side of the cylinder barrel is in a conical shape matched with the drum tile bracket.
Preferably, the adjustable outside is reversed package mechanism by the outside and is wrapped the seat, the outside is reversed package reset cylinder and the outside is reversed package support subassembly and is constituteed, the outside is reversed package seat and is fixed on the main shaft surface, the outside is reversed package seat be close to the radial extension of one end of locating disk, form the first fixed column of support, the outside is reversed package reset cylinder outside fixedly connected with support second fixed column, the outside is reversed package support subassembly is including long connecting rod and short connecting rod, long connecting rod and short connecting rod respectively with support first fixed column, support second fixed column hinged joint, the outside is reversed package reset cylinder including first anti-package cylinder and the first anti-package cylinder piston of setting in the inside anti-package cylinder of first anti-package cylinder, first anti-package cylinder piston is fixed on the outside is reversed package seat surface, first anti-package cylinder is axial motion in the outside, be provided with on the first fixed column of support and is reversed package spacing screw.
Preferably, one end of the anti-wrapping limit screw is in threaded connection with the first fixing column of the bracket, and the other end of the anti-wrapping limit screw extends out towards the direction of the first anti-wrapping cylinder barrel.
Preferably, the adjustable inner and outer turn-up mechanisms are symmetrical to each other.
Preferably, the adjustable inner side anti-wrapping mechanism and the adjustable outer side anti-wrapping mechanism are further provided with positioning rods respectively, the positioning rod head end of the adjustable outer side anti-wrapping mechanism is fixed on the positioning disc, the tail end of the adjustable outer side anti-wrapping mechanism penetrates through the first support fixing column and the second support fixing column, the positioning rod head end of the adjustable inner side anti-wrapping mechanism is fixed on the limiting block, and the tail end of the adjustable inner side anti-wrapping mechanism penetrates through the first support fixing column and the second support fixing column.
Preferably, the drum shoe is further provided with a rubber ring and a rubber ring supporting gasket.
The invention has the advantages that: (1) The two-stage axial separation cylinder driving drum tiles replace a plurality of groups of two-stage cylinders to realize secondary drum expansion, so that the problem of synchronism of the drum tiles of the plurality of groups of cylinders is solved, the number of the cylinders is reduced, the weight is effectively reduced, the load of a main shaft is smaller, the inertia generated during rotation is smaller, and the quality of a produced tire body is better by introducing a linear guide rail to improve the circumferential precision; (2) The invention adds the adjusting mechanism in the structure to realize the production of mountain bike tires with the same specification and different types on the same drum. The primary drum expansion limiting screw rod can limit the travel of the drum expansion each time, and the adjustable inner side anti-wrapping mechanism and the adjustable outer side anti-wrapping mechanism are provided with anti-wrapping limiting screws. (3) The axial air cylinders replace the radial multi-group air cylinder bottles in the prior art to introduce the linear guide rail, so that the synchronism and the circumferential precision of the drum tiles during the expansion and contraction of the drum are ensured, the failure rate can be effectively reduced by replacing a plurality of groups of radial air cylinders with a single group of axial air cylinders, the number of the air cylinders is reduced, the weight is effectively reduced, the load of the main shaft is smaller, the inertia generated during the rotation is smaller, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic illustration of a secondary radially expandable building drum of the present invention;
Reference numerals illustrate: 1. the main shaft, 2 positioning disk, 3 adjustable primary drum cylinder, 31 rear end cover, 32 front end cover, 33 primary drum limit screw, 4 adjustable secondary drum cylinder, 41 cylinder barrel, 42 first piston, 43 secondary drum limit screw, 5 stopper, 6 drum support, 61 drum tile, 611 rubber ring, 612 rubber ring support gasket, 7 outside anti-package seat, 71 support first fixed column, 711 anti-package limit screw, 8 outside anti-package reset cylinder, 81 support second fixed column, 82 first anti-package cylinder barrel, 83 first anti-package cylinder piston, 9 long connecting rod, 10 short connecting rod, 11 positioning rod.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
Example 1:
As shown in the figure: the utility model provides a secondary radial expansion formula shaping drum, includes horizontal main shaft 1 and from left to right distributes on main shaft 1 adjustable outside turn-up mechanism, positioning disk 2, adjustable primary drum cylinder 3 that rises, adjustable secondary drum cylinder 4 that rises, stopper 5, adjustable inboard turn-up mechanism, the outside of adjustable secondary drum cylinder 4 that rises is provided with drum tile support 6, drum tile support 6's inboard is oblique conical surface and forms sliding connection with adjustable secondary drum cylinder 4, drum tile support 6's right side and stopper 5 form sliding connection, drum tile support 6 is radial motion under stopper 5 and adjustable secondary drum cylinder 4 effect, drum tile support 6 outside is fixed with drum tile 61; the positioning disc 2 is fixedly connected with the main shaft 1, the adjustable primary expansion cylinder 3 consists of a rear end cover 31, a front end cover 32 and a primary expansion limiting screw 33, the rear end cover 31 is fixedly connected with the positioning disc 2, the front end cover 32 is in sliding connection with the main shaft 1 and can axially move on the main shaft 1, the tail end of the primary expansion limiting screw 33 is in adjustable threaded connection with the positioning disc 2, the middle section is in sliding connection with the outer side of the front end cover 32, and the head end of the primary expansion limiting screw defines the maximum sliding travel of the front end cover 32; the adjustable secondary expansion air cylinder 4 is composed of a cylinder barrel 41, a first piston 42 and a secondary expansion limit screw 43, wherein the first piston 42 is arranged in the cylinder barrel 41 and is fixed on the surface of the main shaft 1, the cylinder barrel 41 realizes axial reciprocating motion through expansion or contraction of left and right spaces of the first piston 42, the cylinder barrel 41 realizes axial motion through pushing of a front end cover 32, one end of the secondary expansion limit screw 43 is in adjustable threaded connection with a limit block 5, and the other end of the secondary expansion limit screw extends towards the cylinder barrel 41; the outer side of the cylinder 41 is in a conical shape matched with the drum shoe support 61; the adjustable outer wrapping mechanism comprises an outer wrapping seat 7, an outer wrapping reset cylinder 8 and an outer wrapping support assembly, wherein the outer wrapping seat 7 is fixed on the surface of a main shaft 1, one end, close to a positioning disc 2, of the outer wrapping seat 7 radially extends to form a support first fixed column 71, a support second fixed column 81 is fixedly connected to the outer side of the outer wrapping reset cylinder 8, the outer wrapping support assembly comprises a long connecting rod 9 and a short connecting rod 10, the long connecting rod 9 and the short connecting rod 10 are respectively hinged with the support first fixed column 71 and the support second fixed column 81, the outer wrapping reset cylinder 8 comprises a first wrapping cylinder 82 and a first wrapping cylinder piston 83 arranged in the first wrapping cylinder 82, the first wrapping cylinder piston 83 is fixed on the surface of the outer wrapping seat 7, the first wrapping cylinder 82 axially moves on the surface of the outer wrapping seat 7, and a wrapping limit screw is arranged on the support first fixed column 71; one end of the anti-wrapping limit screw 711 is in threaded connection with the first fixing column 71 of the bracket, and the other end extends out towards the direction of the first anti-wrapping cylinder barrel 82; the adjustable inner side turn-up mechanism and the adjustable outer side turn-up mechanism are symmetrical to each other; the adjustable inner side anti-wrapping mechanism and the adjustable outer side anti-wrapping mechanism are also respectively provided with a positioning rod 11, the head end of the positioning rod 11 of the adjustable outer side anti-wrapping mechanism is fixed on the positioning disc 2, the tail end of the positioning rod 11 of the adjustable inner side anti-wrapping mechanism passes through the first support fixing column 71 and the second support fixing column 81, the head end of the positioning rod 11 of the adjustable inner side anti-wrapping mechanism is fixed on the limiting block 5, and the tail end of the positioning rod passes through the first support fixing column 71 and the second support fixing column 81; the drum shoe 61 is also provided with a rubber ring 611 and a rubber ring support pad 612.
The specific working process of the invention is as follows: the compressed air drives the cylinder to obtain power source. When the drum is expanded once, the adjustable primary expansion air cylinder 3 is filled with compressed air to push the front end cover 32, compressed air lower than the pressure of the adjustable primary expansion air cylinder 3 is filled in the drum contracting direction of the adjustable secondary expansion air cylinder 4 to expand once, then after the gluing of sizing material and steel wires is completed, the secondary expansion is carried out, the adjustable secondary expansion air cylinder 4 is inflated in the drum expanding direction, the drum tile 61 is pushed to reach the secondary expansion, then the outer side anti-wrapping reset cylinder 8 pushes the outer side anti-wrapping support assembly to carry out outer side anti-wrapping, after the outer side anti-wrapping is completed, the outer side anti-wrapping reset cylinder 8 pushes the outer side anti-wrapping support assembly to reset, and then the adjustable inner side anti-wrapping machine is started to carry out inner side anti-wrapping and inner side anti-wrapping reset. And finally, the adjustable secondary expansion air cylinder 4 is inflated in the contraction direction, so that the contraction of the drum shoe 61 and the resetting of the adjustable primary expansion air cylinder 3 are realized.
Finally, it should be noted that: it is apparent that the above examples are only illustrative of the present invention and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.
Claims (3)
1. The secondary radial expansion type forming drum is characterized by comprising a horizontally placed main shaft, an adjustable outer side reverse wrapping mechanism, a positioning disk, an adjustable primary expansion cylinder, an adjustable secondary expansion cylinder, a limiting block and an adjustable inner side reverse wrapping mechanism which are distributed on the main shaft from left to right, wherein the outer side of the adjustable secondary expansion cylinder is provided with a drum tile bracket, the inner side of the drum tile bracket is an inclined cone surface and is in sliding connection with the adjustable secondary expansion cylinder, the right side of the drum tile bracket is in sliding connection with the limiting block, the drum tile bracket radially moves under the action of the limiting block and the adjustable secondary expansion cylinder, and a drum tile is fixed on the outer side of the drum tile bracket;
The positioning disc is fixedly connected with the main shaft, the adjustable primary expansion cylinder consists of a rear end cover, a front end cover and a primary expansion limiting screw rod, the rear end cover is fixedly connected with the positioning disc, the front end cover is in sliding connection with the main shaft and can axially move on the main shaft, the tail end of the primary expansion limiting screw rod is in adjustable threaded connection with the positioning disc, the middle section is in sliding connection with the outer side of the front end cover, and the head end of the primary expansion limiting screw rod limits the maximum sliding travel of the front end cover;
The adjustable outer anti-wrapping mechanism comprises an outer anti-wrapping seat, an outer anti-wrapping reset cylinder and an outer anti-wrapping support assembly, wherein the outer anti-wrapping seat is fixed on the surface of a main shaft, one end, close to a positioning disc, of the outer anti-wrapping seat radially extends to form a support first fixed column, the outer side of the outer anti-wrapping reset cylinder is fixedly connected with a support second fixed column, the outer anti-wrapping support assembly comprises a long connecting rod and a short connecting rod, the long connecting rod and the short connecting rod are respectively hinged with the support first fixed column and the support second fixed column, the outer anti-wrapping reset cylinder comprises a first anti-wrapping cylinder barrel and a first anti-wrapping cylinder piston arranged in the first anti-wrapping cylinder barrel, the first anti-wrapping cylinder barrel is fixed on the surface of the outer anti-wrapping seat and moves axially, and anti-wrapping limit screws are arranged on the support first fixed column;
The adjustable secondary drum expansion cylinder consists of a cylinder barrel, a first piston and a secondary drum expansion limit screw, the first piston is arranged in the cylinder barrel and fixed on the surface of a main shaft, the cylinder barrel realizes axial reciprocating motion through expansion or contraction of a left space and a right space of the first piston, the cylinder barrel realizes axial motion through pushing of a front end cover, one end of the secondary drum expansion limit screw is in adjustable threaded connection with a limit block, and the other end of the secondary drum expansion limit screw extends out towards the direction of the cylinder barrel;
The outer side of the cylinder barrel is in a conical shape matched with the drum tile bracket;
The adjustable inner side turn-up mechanism and the adjustable outer side turn-up mechanism are symmetrical to each other;
the adjustable inner side anti-wrapping mechanism and the adjustable outer side anti-wrapping mechanism are further respectively provided with a positioning rod, the positioning rod head end of the adjustable outer side anti-wrapping mechanism is fixed on the positioning disc, the tail end of the adjustable outer side anti-wrapping mechanism penetrates through the first support fixing column and the second support fixing column, the positioning rod head end of the adjustable inner side anti-wrapping mechanism is fixed on the limiting block, and the tail end of the adjustable inner side anti-wrapping mechanism penetrates through the first support fixing column and the second support fixing column.
2. The secondary radial expansion forming drum of claim 1, wherein one end of the turnup limit screw is in threaded connection with the first fixed column of the bracket, and the other end extends toward the first turnup cylinder.
3. A secondary radial expansion building drum according to claim 1, wherein the drum shoe is further provided with rubber rings and rubber ring support gaskets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811242386.1A CN109203534B (en) | 2018-10-24 | 2018-10-24 | Secondary radial expansion type forming drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811242386.1A CN109203534B (en) | 2018-10-24 | 2018-10-24 | Secondary radial expansion type forming drum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109203534A CN109203534A (en) | 2019-01-15 |
| CN109203534B true CN109203534B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811242386.1A Active CN109203534B (en) | 2018-10-24 | 2018-10-24 | Secondary radial expansion type forming drum |
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| CN (1) | CN109203534B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110696400A (en) * | 2019-11-15 | 2020-01-17 | 软控股份有限公司 | Bead filler forming drum device |
| CN111152488B (en) * | 2020-01-21 | 2022-06-14 | 厦门洪海机械有限公司 | Mechanical forming drum convenient for adjusting drum width |
| CN111319284B (en) * | 2020-04-09 | 2022-01-28 | 烟台富瑞达机械有限公司 | Double-station solid tire forming equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4855008A (en) * | 1988-05-09 | 1989-08-08 | The Goodyear Tire & Rubber Company | Expandable tire building drum |
| CN2640742Y (en) * | 2003-07-07 | 2004-09-15 | 万果照 | Second radial expending make-up drum |
| CN2656124Y (en) * | 2003-10-22 | 2004-11-17 | 万果照 | Small diameter conical slant wedge slide block shaping drum |
| CN2678882Y (en) * | 2004-03-09 | 2005-02-16 | 广东巨轮模具股份有限公司 | Radiation expansion type laminating drum |
| CN203542913U (en) * | 2013-11-18 | 2014-04-16 | 三角（威海）华盛轮胎有限公司 | Inner mold for vulcanizing tyre |
| CN209096072U (en) * | 2018-10-24 | 2019-07-12 | 广东荣兴机械科技有限公司 | A kind of second radial expending make-up drum |
-
2018
- 2018-10-24 CN CN201811242386.1A patent/CN109203534B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4855008A (en) * | 1988-05-09 | 1989-08-08 | The Goodyear Tire & Rubber Company | Expandable tire building drum |
| CN2640742Y (en) * | 2003-07-07 | 2004-09-15 | 万果照 | Second radial expending make-up drum |
| CN2656124Y (en) * | 2003-10-22 | 2004-11-17 | 万果照 | Small diameter conical slant wedge slide block shaping drum |
| CN2678882Y (en) * | 2004-03-09 | 2005-02-16 | 广东巨轮模具股份有限公司 | Radiation expansion type laminating drum |
| CN203542913U (en) * | 2013-11-18 | 2014-04-16 | 三角（威海）华盛轮胎有限公司 | Inner mold for vulcanizing tyre |
| CN209096072U (en) * | 2018-10-24 | 2019-07-12 | 广东荣兴机械科技有限公司 | A kind of second radial expending make-up drum |
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| CN109203534A (en) | 2019-01-15 |
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