CN113997618B - Glue part stretching and feeding device - Google Patents
Glue part stretching and feeding device Download PDFInfo
- Publication number
- CN113997618B CN113997618B CN202111124067.2A CN202111124067A CN113997618B CN 113997618 B CN113997618 B CN 113997618B CN 202111124067 A CN202111124067 A CN 202111124067A CN 113997618 B CN113997618 B CN 113997618B
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- Prior art keywords
- pressing
- roller
- stretching
- shaft
- glue
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- 239000003292 glue Substances 0.000 title claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 53
- 239000000853 adhesive Substances 0.000 claims abstract description 19
- 230000001070 adhesive effect Effects 0.000 claims abstract description 19
- 238000005096 rolling process Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 20
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- B29D30/30—Applying the layers; Guiding or stretching the layers during application
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tyre Moulding (AREA)
- Coating Apparatus (AREA)
Abstract
The invention belongs to the technical field of rubber component stretching in a tire forming process, and discloses a rubber component stretching and feeding device. The device comprises a feeding frame; the conveying mechanism is arranged on the feeding frame; a differential stretching mechanism, wherein the glue component enters the differential stretching mechanism from the conveying mechanism; the differential stretching mechanism comprises a pair of first pressing parts which are arranged in parallel in the moving direction of the adhesive part, and a pair of second pressing parts which are arranged above the first pressing parts correspondingly, wherein the height of the second pressing parts is adjustable, and the second pressing parts are matched with the first pressing parts which are arranged correspondingly to form a pressing space with a preset shape, and the rolling speed of the front second pressing parts is higher than that of the rear second pressing parts, so that the adhesive part between the two pressing parts is stretched; and the pressing roller mechanism is used for enabling the stretched adhesive part to enter the pressing roller mechanism and enabling the stretched adhesive part to be attached to the forming drum. The device can guarantee to carry out the even tensile of pressfitting power to the gluey part.
Description
Technical Field
The invention relates to the technical field of rubber component stretching in the tire forming process, in particular to a rubber component stretching and feeding device.
Background
In the process of forming the large-inch-level tire, the rubber component is usually pressed out singly and then transferred to a forming process for bonding, and the design length of the rubber component is usually smaller than the circumference of a forming drum of a forming machine; in this way, when the bonding process of the adhesive member is performed, a worker is required to manually stretch the adhesive member to bond the adhesive member to the entire circumference of the molding drum. However, in actual operation, the glue component is stretched by hand, so that the glue component is not uniformly stretched, and deformation of the glue component is caused in the stretching process, so that the pressing of the glue component at the later stage is influenced, and the quality of the tire is further influenced; in addition, staff also has the problem of increasing labor intensity, influencing mechanized operation and the like in the process of stretching the rubber component.
Disclosure of Invention
The invention provides a glue part stretching and feeding device, which aims to solve the technical problem that in the prior art, glue parts are non-uniformly stretched when being bonded in the tire molding process.
In order to solve the technical problems, the invention adopts the following technical scheme:
a glue part stretching and feeding device comprises a feeding frame; the conveying mechanism is arranged on the feeding frame; a differential stretching mechanism, wherein the glue component enters the differential stretching mechanism from the conveying mechanism; the differential stretching mechanism comprises a pair of second pressing parts which are arranged in parallel in the moving direction of the glue component and a pair of first pressing parts which are correspondingly arranged above the second pressing parts, wherein the height of each first pressing part is adjustable, and the first pressing parts and the second pressing parts which are correspondingly arranged are matched to form a pressing space with a preset shape; and the pressing roller mechanism is used for enabling the stretched adhesive part to enter the pressing roller mechanism and enabling the stretched adhesive part to be attached to the forming drum.
Further, the first press-fit portion includes: an upper press roll; and the upper pressing roller is connected with the height adjusting unit through an optical axis, and the height adjusting unit adjusts the height between the first pressing part and the second pressing part.
Further, the height adjusting unit includes: the lower end part of the rack is connected with the upper pressing roller; the gear is meshed with the rack, and the rack is driven to move up and down by the rotation of the gear; the gear is arranged on the adjusting shaft; the adjusting piece is arranged on the adjusting shaft, and the gear is driven to rotate by rotating the adjusting piece through the adjusting shaft.
Further, the differential stretching mechanism further comprises a fixing plate, the fixing plate is installed on the feeding frame, and the fixing plate is provided with a containing groove for placing the racks.
Further, the first pressing portion comprises a plurality of upper pressing rollers arranged in an array mode on the same horizontal plane, a pair of racks are arranged at two ends of each upper pressing roller, a pair of gears are correspondingly arranged on the racks, an adjusting shaft is correspondingly arranged on the gears, and an adjusting piece is arranged at one end of each adjusting shaft.
Further, the second pressing portions comprise lower pressing rollers, and the two lower pressing rollers are driven by different power units to realize rolling speed differences.
Further, the press roller mechanism includes: the compression roller shaft is arranged on the feeding frame; the compression roller arm is connected with the compression roller shaft at one end; and the press roll is arranged at the other end of the press roll arm, and the press roll shaft is rotated to enable the press roll to be in contact with the forming drum, so that the adhesive part is attached.
Further, a spring is arranged at the position of the compression roller arm between the compression roller arm and the compression roller shaft; the roller shaft is provided with a groove, and one end of the roller arm is positioned in the groove.
Further, the transmission mechanism comprises a plurality of transmission shafts which are sequentially arranged, a transmission belt is arranged on each transmission shaft, and one transmission shaft is connected with the power unit; and a transmission shaft for supporting and transitional functions is further arranged between the differential stretching mechanism and the transmission device.
The invention provides a glue component stretching and feeding device, wherein the height of a second pressing part of a differential stretching mechanism is adjustable, and the second pressing part is matched with a first pressing part to form a pressing space with a preset shape. By using the differential stretching mechanism, the height of the first pressing part can be adjusted according to the shape of the rubber part, so that the pressing force on the rubber part is uniform, the deformation of each part of the half part in the stretching process is avoided, and the rubber part is uniformly stretched during tire molding. The compression roller mechanism adjusts the compression roller through the elastic piece so as to be suitable for half parts with different shapes and ensure the pressing effect. The invention improves the product quality, simultaneously avoids manually stretching the half parts and reduces the labor intensity.
Drawings
FIG. 1 is a schematic structural view of a glue part stretching and feeding device provided by the invention;
FIG. 2 is a schematic diagram of a differential stretching mechanism according to the present invention;
fig. 3 (a) and 3 (b) are partial enlarged views of the differential stretching mechanism provided by the present invention;
FIG. 4 is a top view of the glue part stretching and feeding device provided by the invention;
FIG. 5 is a schematic view of a press roller mechanism according to the present invention;
FIG. 6 is a schematic view of a structure of a platen roller shaft according to the present invention;
fig. 7 is a schematic structural view of a press roller arm according to the present invention.
Reference numerals: 1. a feeding frame; 2. a conveying mechanism; 3. a differential stretching mechanism; 4. a press roller mechanism; 5. a forming drum; 21. a transmission shaft; 23. a conveying shaft; 24. a third power unit; 31. a first press-fit portion; 32. a second press-fit portion; 33. a fixing plate; 311. an upper press roll; 312. a rack; 313. a gear; 314. an adjusting shaft; 315. an adjusting member; 312a, a guide slot; 321. a lower press roll; 321a, a first lower press roller; 321b, a second lower press roller; 322. a power unit; 322a, first power unit; 322b second power unit; 41. a roll shaft; 42. a press roller arm; 43. a press roller; 44. an elastic member; 45. a first circular ring; 46. a press roller adjusting nut; 47. and a second circular ring.
Detailed Description
The invention discloses a glue part stretching and feeding device, and a person skilled in the art can properly improve parts by referring to the content of the text. It is expressly noted that all such similar substitutions and modifications will be apparent to those skilled in the art, and are deemed to be included herein. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those skilled in the relevant art that variations and modifications can be made in the methods and applications described herein, and in the practice and application of the techniques of this invention, without departing from the spirit or scope of the invention.
The present invention will be described in further detail with reference to specific embodiments thereof so that those skilled in the art can better understand the present invention.
The invention provides a glue part stretching and feeding device, as shown in figure 1, a glue part stretching and feeding device and a feeding frame 1; a conveying mechanism 2, wherein the conveying mechanism 2 is arranged on the feeding frame 1; a differential stretching mechanism 3, wherein the glue component enters the differential stretching mechanism 3 from the conveying mechanism 2; as shown in fig. 2, the differential stretching mechanism 3 includes a pair of second pressing parts 32 arranged in parallel in the moving direction of the glue component, and a pair of first pressing parts 31 arranged above the second pressing parts 32 correspondingly, wherein the height of the first pressing parts 31 is adjustable, and a pressing space with a preset shape is formed by matching the corresponding second pressing parts 32, and the rolling speed of the second pressing parts 32 positioned in front is higher than that of the second pressing parts 32 positioned behind according to the moving direction of the glue component, so that the glue component between the two pressing parts stretches; and the press roller mechanism 4 is used for leading the stretched adhesive part to enter the press roller mechanism 4 and enabling the stretched adhesive part to be attached to the forming drum 5.
As shown in fig. 2, the first nip 31 of the present invention includes: an upper press roller 311; and a height adjusting unit, the upper press roller 311 is connected with the height adjusting unit through an optical axis, and the height adjusting unit adjusts the height between the first and second press parts 31 and 32. In the embodiment shown in fig. 2, the height adjustment unit includes: a rack 312, a lower end of the rack 312 is connected with the upper press roller 311; a gear 313, wherein the gear 313 is meshed with the rack 312, and the rack 312 is driven to move up and down by the rotation of the gear 313; an adjustment shaft 314, the gear 313 being mounted on the adjustment shaft 314; the adjusting member 315 is mounted at the end of the adjusting shaft 314, and the adjusting member 315 rotates to drive the gear 313 to rotate through the adjusting shaft 314, so as to drive the rack 312 to move to achieve the height adjustment of the upper press roller 311, and in a specific embodiment, the adjusting member 315 is preferably an adjusting nut.
For the irregularly shaped glue components, as shown in the embodiment of fig. 2, the first pressing part 32 of the present invention includes a plurality of upper pressing rollers 311 arranged in an array on the same horizontal plane, a pair of racks 312 are disposed at two ends of each upper pressing roller 311, the pair of racks 312 are correspondingly provided with a pair of gears 313, the pair of gears 313 are correspondingly provided with an adjusting shaft 314, the adjusting shaft 314 is mounted on the feeding frame 1 through a light hole, and an adjusting member 315 is mounted at one end of each adjusting shaft 314. The rotation adjusting member 315 adjusts each upper press roller 15 to a desired height according to the shape of the different glue parts, so that the interval between each upper press roller 311 and the lower press roller of the second press portion 32 is matched with the shape of the half part.
In a specific embodiment, the lower end of the rack 312 has a fixing portion for fixing the upper press roller, and the fixing portion may be designed in any shape, for example, may be semicircular or semi-elliptical or polygonal. The upper press roller 311 may be installed between fixing portions for fixing the two racks 312 through an optical axis and a stud (not shown).
In the embodiment shown in fig. 2, the differential stretching mechanism further includes a fixing plate 33, the fixing plate 33 is mounted on the feeding frame 1, and the fixing plate 33 is provided with a containing groove 331 for placing the rack. In a preferred embodiment, the fixing plate 33 may be fastened to the feeding frame 1 by bolts, and the fixing plate 33 is provided with a plurality of receiving grooves, and the plurality of racks 312 are respectively located in the corresponding receiving grooves. As shown in fig. 3 (a), the side wall of the rack 312 is provided with a guide groove 312a, and a protrusion (not shown) is disposed in the accommodating groove 331, and the protrusion slides in the guide groove 312a, so that the rack 312 can be stably moved, and the upper press roller 311 can be better adjusted to reach the desired height. The height adjusting unit provided by the invention is used for adjusting the height of the upper press roller, so that the pressure on each position of the adhesive part is ensured to be uniform.
In a specific implementation, as shown in fig. 3 (b), one end of the adjusting shaft 314 is hexagonal for installing the adjusting member, each side of the feeding frame 1 is correspondingly provided with a plurality of light holes, the plurality of adjusting shafts 314 are installed on the feeding frame 1 through the light holes, and a hexagonal sinking groove is formed outside the light hole on one side for limiting the rotation of the adjusting member.
As shown in fig. 2, the second pressing portion 32 of the present invention includes a lower pressing roller 321, the lower pressing roller 321 is mounted on the feeding frame 1 through a unthreaded hole, a pair of lower pressing rollers 321 are driven by different power units 322 to realize a rolling speed difference, the front power unit is defined as a first power unit 322a, the rear power unit is defined as a second power unit 322b according to the moving direction of the adhesive component, the power unit is preferably a servo motor, the front lower pressing roller is a first lower pressing roller 321a, the rear lower pressing roller is a second lower pressing roller 321b, one ends of the first lower pressing roller 321a and the second lower pressing roller 321b are respectively connected with the first power unit 322a and the second power unit 322b with different rotation speeds through gears, the rotation speed of the first power unit 322a is greater than that of the second power unit 322b, so that the rotation speed of the first lower pressing roller 321a is greater than the second lower pressing roller 321b, and the adhesive component is stretched.
As shown in fig. 5 and 6, the platen roller mechanism 4 of the present invention includes: a platen roller shaft 41, the platen roller shaft 41 being mounted on the feed frame 1; a press roller arm 42, wherein one end of the press roller arm 42 is connected with the press roller shaft 41; the press roller 43 is arranged at the other end of the press roller arm 42, and the press roller shaft 41 is rotated to enable the press roller 43 to be in contact with the forming drum 5, so that the adhesive part is attached.
In the embodiment shown in fig. 5, an elastic member 44 is installed at the position of the pressing arm between the pressing arm 42 and the pressing shaft 41, and preferably, the elastic member 44 is a spring.
In this embodiment, the pressing roller shaft 41 is provided with a plane, a groove is formed in the plane, and one end of the pressing roller arm 42 is located in the groove. Specifically, the press roller mechanism 4 is installed on the feeding frame 1, one end of the press roller shaft 41 is hexagonal and is used for installing the press roller adjusting nut, the press roller shaft is fixed in rotation angle through the press roller adjusting nut 46, two sides of the feeding frame 1 are respectively provided with a unthreaded hole, and a hexagonal sinking groove is formed outside one unthreaded hole and is used for limiting the rotation of the press roller adjusting nut. In a preferred embodiment, the roller shaft 41 is provided with a plurality of grooves, the plurality of roller arms 42 are respectively positioned in the plurality of grooves of the roller shaft, one end of each roller arm 42 is provided with a first circular ring 45, the roller shaft 41 is provided with a second circular ring 47 near the grooves, the roller arms are positioned in the corresponding grooves and are connected with the first circular ring 45 and the second circular ring 47 through bolts, and the other end of each roller arm 42 is provided with the roller 43 through a shaft. The glue parts are stretched to a certain length by a differential stretching mechanism and are pressed onto a forming drum by a pressing roller mechanism 4.
As shown in fig. 4, the conveying mechanism 2 of the present invention includes a plurality of transmission shafts 21 sequentially arranged, a conveyor belt is mounted on the transmission shafts 21, one transmission shaft 21 is connected with a third power unit 24, and the conveying speed of the conveyor belt is the same as the rolling speed of a second lower press roller 321 b. In the preferred embodiment, a transmission shaft 23 is also arranged between the differential stretching mechanism and the transmission device, and plays a role in supporting transition.
The feeding frame 1 has a rectangular frame, on both sides of which iron plates are welded, and a smooth hole is punched at a fixing position of the iron plates to mount the transmission shaft 21, the transmission shaft 23, the lower press roller 321, the fixing plate 33, the adjustment shaft 314 and the press roller shaft 41.
In operation, the speeds of the first power unit 322a and the second power unit 322b are respectively set according to the half-component size stretching ratio, so that the rotation speed of the first power unit 322a is greater than that of the second power unit 322b, and the rotation speeds of the third power unit 24 and the second power unit 322b are set to be the same. According to the shapes of different glue parts, the height of each upper press roller 311 is adjusted by rotating the adjusting part 315, so that the distance between each upper press roller and the lower press roller 321 is matched with the shape of the half part, and after the adjustment is finished, the adjusting part 315 is pressed into the sinking groove on the feeding frame 1 so as to fix the height of the upper press roller 311. Similarly, after the roll adjustment nut 46 is pulled out, the roll adjustment nut is turned to adjust the rotation of the roll shaft 41 so that the roll 43 is properly brought into contact with the forming drum. After the setting is finished, the glue component is placed on a conveyor belt, a system is started, the glue component enters between an upper press roller 311 and a lower press roller two 321b at a certain speed, the glue component enters between the upper press roller 311 and a lower press roller one 321a at the front after receiving pressure, at this time, the speed of the lower press roller one 321a is greater than that of the lower press roller two 321b, so that a half component between the press rollers is stretched, the stretching rate is directly related to the speed difference of the two lower press rollers, the glue component is stretched to come out from the lower press roller one 321a and then is attached to a forming drum 5, and at this time, the press roller 243 is used for properly laminating the glue component to be attached to the forming drum 5.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (8)
1. Glue part tensile loading attachment, its characterized in that includes:
a feeding frame;
the conveying mechanism is arranged on the feeding frame;
a differential stretching mechanism, wherein the glue component enters the differential stretching mechanism from the conveying mechanism; the differential stretching mechanism comprises a pair of second pressing parts which are arranged in parallel in the moving direction of the glue component and a pair of first pressing parts which are correspondingly arranged above the second pressing parts, wherein the height of each first pressing part is adjustable, and the first pressing parts and the second pressing parts which are correspondingly arranged are matched to form a pressing space with a preset shape;
the pressing roller mechanism is used for enabling the stretched adhesive part to enter the pressing roller mechanism and enabling the stretched adhesive part to be attached to the forming drum;
the first pressing part comprises an upper pressing roller; the upper pressing roller is connected with the height adjusting unit through an optical axis, and the height adjusting unit adjusts the height between the first pressing part and the second pressing part;
the height adjusting unit comprises a rack, wherein the lower end part of the rack is connected with the upper pressing roller; the gear is meshed with the rack, and the rack is driven to move up and down by the rotation of the gear; the gear is arranged on the adjusting shaft; the adjusting piece is arranged on the adjusting shaft and drives the gear to rotate through the adjusting shaft by rotating the adjusting piece;
the second pressing part comprises a lower pressing roller, and the two lower pressing rollers are driven by different power units to realize rolling speed difference.
2. The glue part stretching and feeding device according to claim 1, wherein the differential stretching mechanism further comprises a fixing plate, the fixing plate is installed on the feeding frame, and a containing groove for placing the racks is formed in the fixing plate.
3. The glue component stretching and feeding device according to claim 1, wherein the first pressing portion comprises a plurality of upper pressing rollers arranged in an array on the same horizontal plane, a pair of racks are arranged at two ends of each upper pressing roller, a pair of gears are correspondingly arranged on the racks, an adjusting shaft is correspondingly arranged on the gears, and an adjusting piece is arranged at one end of each adjusting shaft.
4. The glue part stretching and feeding device according to claim 1, wherein the second pressing part comprises a lower pressing roller, and the two lower pressing rollers are driven by different power units respectively to realize rolling speed difference.
5. The glue part stretching and feeding device as set forth in claim 1, wherein the press roller mechanism comprises:
the compression roller shaft is arranged on the feeding frame;
the compression roller arm is connected with the compression roller shaft at one end;
and the press roll is arranged at the other end of the press roll arm, and the press roll shaft is rotated to enable the press roll to be in contact with the forming drum, so that the adhesive part is attached.
6. The glue part stretching and feeding device according to claim 5, wherein an elastic piece is arranged at a position of the pressing roller arm between the pressing roller arm and the pressing roller shaft; the roller shaft is provided with a groove, and one end of the roller arm is positioned in the groove.
7. The glue part stretching and feeding device according to claim 1, wherein the conveying mechanism comprises a plurality of transmission shafts which are sequentially arranged, a conveyor belt is arranged on each transmission shaft, and one transmission shaft is connected with the power unit.
8. The glue part stretching and feeding device according to claim 1 or 7, wherein a transmission shaft for supporting transition is further arranged between the differential stretching mechanism and the transmission device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111124067.2A CN113997618B (en) | 2021-09-24 | 2021-09-24 | Glue part stretching and feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111124067.2A CN113997618B (en) | 2021-09-24 | 2021-09-24 | Glue part stretching and feeding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113997618A CN113997618A (en) | 2022-02-01 |
| CN113997618B true CN113997618B (en) | 2024-01-30 |
Family
ID=79922172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111124067.2A Active CN113997618B (en) | 2021-09-24 | 2021-09-24 | Glue part stretching and feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113997618B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202517727U (en) * | 2012-04-28 | 2012-11-07 | 田建国 | Tread rubber evenly stretching device |
| JP2016190441A (en) * | 2015-03-31 | 2016-11-10 | 住友ゴム工業株式会社 | Tire molding device and tire molding method |
| CN106715104A (en) * | 2014-08-08 | 2017-05-24 | Vmi荷兰公司 | Stretching device for an apex filler strip for tire beads and apex handling system comprising the stretching device |
| KR20190067598A (en) * | 2017-12-07 | 2019-06-17 | 송원대학교산학협력단 | Apparatus for forming retread |
| KR102220755B1 (en) * | 2020-02-11 | 2021-02-26 | 주식회사 바구스 | Joint apparatus of tire tread |
-
2021
- 2021-09-24 CN CN202111124067.2A patent/CN113997618B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202517727U (en) * | 2012-04-28 | 2012-11-07 | 田建国 | Tread rubber evenly stretching device |
| CN106715104A (en) * | 2014-08-08 | 2017-05-24 | Vmi荷兰公司 | Stretching device for an apex filler strip for tire beads and apex handling system comprising the stretching device |
| JP2016190441A (en) * | 2015-03-31 | 2016-11-10 | 住友ゴム工業株式会社 | Tire molding device and tire molding method |
| KR20190067598A (en) * | 2017-12-07 | 2019-06-17 | 송원대학교산학협력단 | Apparatus for forming retread |
| KR102220755B1 (en) * | 2020-02-11 | 2021-02-26 | 주식회사 바구스 | Joint apparatus of tire tread |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113997618A (en) | 2022-02-01 |
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