CN105690822A - Automatic tread feeding device - Google Patents
Automatic tread feeding device Download PDFInfo
- Publication number
- CN105690822A CN105690822A CN201610172174.5A CN201610172174A CN105690822A CN 105690822 A CN105690822 A CN 105690822A CN 201610172174 A CN201610172174 A CN 201610172174A CN 105690822 A CN105690822 A CN 105690822A
- Authority
- CN
- China
- Prior art keywords
- tread
- tyre surface
- conveyer belt
- camera head
- conveying mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B29D30/26—Accessories or details, e.g. membranes, transfer rings
- B29D30/2607—Devices for transferring annular tyre components during the building-up stage, e.g. from the first stage to the second stage building drum
-
- 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)
Abstract
An automatic tread feeding device comprises a tread conveying mechanism, a tread cutting device, a press roll and a control system. According to the tread conveying direction, the tread conveying mechanism is divided into a rear conveying mechanism and a front conveying mechanism with the tread cutting device as a benchmark. The front conveying mechanism comprises a conveying belt, a tread length control device and a tread offset compensator, wherein the tread length control device and the tread offset compensator are both installed on the front conveying mechanism and located between the tread cutting device and the press roll. By means of the automatic tread feeding device, the purposes of tread automatic convey, visual length control, ultrasonic cutting, visual deviation correction and automatic joint attaching on a drum in the tire molding process are mainly achieved, full-automatic feeding of tread materials in the tire molding process is achieved, and the production quality of tires can be improved.
Description
Technical field
The invention belongs to intelligent machine technical field, relate to a kind of tire tread detection process equipment, specifically, relate to the automatic feeder of tyre surface in a kind of tire production process。
Background technology
The development of auto industry, the requirement of tyre performance is more and more higher, in comfortableness, safety, the feature of environmental protection etc., tire production is had higher requirement；Meanwhile, labor cost constantly rises, and tire production faces significant cost pressure。Therefore, tyre production equipment is proposed new demand by tire production in two: one, in high precision, and two, automatization。The automatic tyre surface feed frame existing structure of existing tyre building machine is (part adopts automatic deviation correction) in adopting automatic transport, servo fixed length, ultrasonic cutting, machinery fixed, thus fixed length, fixed in have that precision is low, the problem of poor stability。
Such as: application number a kind of tyre building machine tyre surface feed frame that has been the patent disclosure of 201510566172.X。Including conveyor module, conveyor module is provided with monolateral centralising device and tyre surface device for detecting length, and tyre surface device for detecting length is provided with photoswitch。Measured the length of tyre surface by photoswitch, actual measured value is sent in control system by device for detecting length, and actual measured value and preset value are compared by control system, judges whether tire material has reached the length that can block。What its length detection adopted is switching value, and precision is low, poor stability, is not suitable for high-precision process requirements。Additionally, what its centralising device adopted be monolateral centralising device, by belt centrage whether with circumferential line to its judge Tai Liao center whether with setting center superposition。By the mode that machinery judges, precision is extremely low。
Summary of the invention
It is an object of the invention to provide a kind of there is tyre surface Fixed Length Test, course of conveying large deviations detects and has the automatic tread serviser of automatic deviation rectifying function。
The technical scheme is that automatic tread serviser, including tyre surface conveying mechanism, tread cutting device, pressure roller and control system, by tyre surface conveying direction, with tread cutting device for benchmark, tyre surface conveying mechanism is divided into rear conveying mechanism and front conveyor structure, and front conveyor structure includes conveyer belt, also includes tyre surface length control device, tyre surface deviation correcting device, it is installed on front conveyor structure, between tread cutting device and pressure roller；
Tyre surface length control device includes fixed length camera head, line slideway, clamp system, line slideway is parallel to front conveyor structure direction, fixed length camera head is arranged on installing rack, installing rack is arranged on line slideway, and clamp system connects with installing rack, including fixing plate, clamping plate and clamping cylinder, fixing plate contacts with conveyer belt upper surface, clamping plate is positioned at below conveyer belt, and clamping cylinder receives and controls system signal, drives clamping plate to move up and down；
Tyre surface deviation correcting device includes correction camera head, adjustable plate and YE；Adjustable plate is connected with the power transmission shaft of conveyer belt, and YE is fixed on adjustable plate, receives the signal of control system, drives adjustable plate to move along the direction being parallel to conveyer belt width；
The image pick-up signal of fixed length camera head and correction camera head is all sent to control system。
Preferably: tyre surface length control device also includes fixed length light source, tyre surface deviation correcting device also includes correction light source, front conveyor structure is made up of a plurality of transversely arranged conveyer belt, and adjacent two conveying interbands have the lower section that gap, fixed length light source and correction light source are arranged at a plurality of conveyer belt。
The invention has the beneficial effects as follows:
The present invention mainly solves tyre surface automatic transport, vision fixed length, ultrasonic cutting, vision correcting the problem of automatic attaching joint on drum in tire building process, it is achieved the Full-automatic feeding of tyre surface material in tire building process。
Present invention improves over tradition tread serviser adopt machinery fixed length, fixed in, the mode of cut-to-length, centred position adjustment is controlled by switching value, by vision technique, fixed length, correction are controlled in real time, it is ensured that control accuracy, thus improve the crudy of tire。
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram。
Fig. 2 is tyre surface length control device structural representation。
Fig. 3 is tyre surface deviation correcting device structural representation。
Fig. 4 is tyre surface deviation correcting device structural representation。
Wherein: conveying mechanism after 1-, 2-front conveyor structure, 201-conveyer belt, 3-tread cutting device, 4-tyre surface length control device, 401-fixed length camera head, 402-line slideway, 403-installing rack, 404-fixes plate, 405-clamping plate, 406-clamping cylinder, 407-fixed length light source, 5-tyre surface deviation correcting device, the inclined camera head of 501-, 502-adjustable plate, 503-YE, 504-rectifies a deviation light source, 505-mounting bracket, 6-pressure roller
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is conducted further description。
As it is shown in figure 1, automatic tread serviser, including tyre surface conveying mechanism, tread cutting device 3, pressure roller 6 and control system, by tyre surface conveying direction, with tread cutting device 3 for benchmark, tyre surface conveying mechanism is divided into rear conveying mechanism 1 and front conveyor structure 2, and front conveyor structure 2 includes conveyer belt 201。
Automatic tread serviser also includes tyre surface length control device 4, tyre surface deviation correcting device 5, is installed on front conveyer device 2, between tread cutting device and pressure roller 6。
As shown in Figure 2, tyre surface length control device 4 includes fixed length camera head 401, line slideway 402, clamp system, line slideway 402 is parallel to front conveyor structure 2 direction, fixed length camera head 401 is arranged on installing rack 403, installing rack 403 is arranged on line slideway 402, clamp system connects with installing rack 403, including fixing plate 404, clamping plate 405 and clamping cylinder 406, fixing plate 404 contacts with conveyer belt 201 upper surface, clamping plate is positioned at below conveyer belt 201, clamping cylinder 406 receives and controls system signal, drives clamping plate 405 to move up and down。In work process, the difference according to tyre surface severing length, the position of tyre surface length control device 4 is adjustable。Set the tread cutting device 3 distance to fixed length camera head 401 photographic head center and need the length of severing as tyre surface。During adjusting position, controlling system to clamping cylinder 406 signal, clamping cylinder controls clamping plate 405 and moves upward, and the mating reaction of fixing plate 404, clamping conveying belt 201, thus driving installing rack 403 and fixed length camera head 401 to move along line slideway 402。
As it is shown on figure 3, tyre surface deviation correcting device 5 includes correction camera head 501, adjustable plate 502 and YE 503；Correction camera head 501 is arranged on the top of conveyer belt 201 through mounting bracket 505, adjustable plate 502 is connected with the power transmission shaft of conveyer belt 201, YE 503 is fixed on adjustable plate 502, receives the signal of control system, drives adjustable plate 502 to move along the conveying direction being perpendicular to conveyer belt 201。In work process, the center of tyre surface needs to overlap with the center conveyor set, the quality of guarantee tyre production。
The image pick-up signal of fixed length camera head 401 and correction camera head 501 is all sent to control system。
Wherein, the image of fixed length camera head 401 feedback is for detecting whether tyre surface has reached to need the length of severing。Start when the stub bar of tyre surface moves in the image-capture field of tyre surface length control device 4, tyre surface is persistently taken pictures by tyre surface fixed length camera head 401, and by image feedback to control system, when the shooting center of tyre surface fixed length camera head 401 overlaps with tyre surface stub bar position, judge that the position of tyre surface has reached to need the length of severing, control system start-up tread cutting device 3, by tyre surface severing。
The image of correction camera head 501 feedback is for detecting tyre surface in the process of conveying, if the center of tyre surface center and setting exists deviation。Set reference center, when deviation occurs, deviation will be there is in the centrage that image feeds back with reference center, now, YE 503 drives adjustable plate 502 to move, regulating conveyer belt 201 transverse shifting, thus realizing tyre surface accurately the fitting on drum of conveying, pressure roller 6 butt joint pressing after laminating completes realizes automatic joint。
In order to make fixed length camera head 401 and correction camera head 501 have good image acquisition effect, tyre surface length control device 4 also includes fixed length light source 407, tyre surface deviation correcting device 5 also includes correction light source 504, front conveyor structure 2 is made up of a plurality of transversely arranged conveyer belt 201, gap, fixed length light source 407 and correction light source 504 is had to be arranged at the lower section of a plurality of conveyer belt between adjacent two conveyer belts 201。The light that two light sources send can pass through the gap between conveyer belt 201, provide photographic light sources for fixed length camera head 401 and correction camera head 501。
Claims (2)
1. automatic tread serviser, including tyre surface conveying mechanism, tread cutting device, pressure roller and control system, by tyre surface conveying direction, with tread cutting device for benchmark, tyre surface conveying mechanism is divided into rear conveying mechanism and front conveyor structure, and front conveyor structure includes conveyer belt, it is characterised in that: also include tyre surface length control device, tyre surface deviation correcting device, it is installed on front conveyer device, between tread cutting device and pressure roller；
Described tyre surface length control device includes fixed length camera head, line slideway, clamp system, described line slideway is parallel to front conveyor structure direction, described fixed length camera head is arranged on installing rack, installing rack is arranged on line slideway, and described clamp system connects with installing rack, including fixing plate, clamping plate and clamping cylinder, described fixing plate contacts with conveyer belt upper surface, clamping plate is positioned at below conveyer belt, and clamping cylinder receives and controls system signal, drives clamping plate to move up and down；
Described tyre surface deviation correcting device includes correction camera head, adjustable plate and YE；Described adjustable plate is connected with the power transmission shaft of conveyer belt, and described YE is fixed on adjustable plate, receives the signal of control system, drives adjustable plate to move along the direction of parallel conveyor belts width；
The image pick-up signal of described fixed length camera head and correction camera head is all sent to control system。
2. tread serviser automatically as claimed in claim 1, it is characterized in that: described tyre surface length control device also includes fixed length light source, described tyre surface deviation correcting device also includes correction light source, described front conveyor structure is made up of a plurality of transversely arranged conveyer belt, adjacent two conveying interbands have the lower section that gap, described fixed length light source and correction light source are arranged at a plurality of conveyer belt。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610172174.5A CN105690822B (en) | 2016-03-24 | 2016-03-24 | Automatic tread serviser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610172174.5A CN105690822B (en) | 2016-03-24 | 2016-03-24 | Automatic tread serviser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105690822A true CN105690822A (en) | 2016-06-22 |
| CN105690822B CN105690822B (en) | 2017-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610172174.5A Active CN105690822B (en) | 2016-03-24 | 2016-03-24 | Automatic tread serviser |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946261A (en) * | 2016-06-27 | 2016-09-21 | 天津赛象科技股份有限公司 | Auxiliary material passing device for splicing |
| CN106273592A (en) * | 2016-08-29 | 2017-01-04 | 桂林梵玛科机械有限公司 | Fibercord tapered cut joint automatic attaching system and applying method |
| CN106863456A (en) * | 2017-02-20 | 2017-06-20 | 萨驰华辰机械(苏州)有限公司 | The flexible sizing methods of tire prepackage band and length control device |
| CN108790229A (en) * | 2018-06-22 | 2018-11-13 | 杭州朝阳橡胶有限公司 | A kind of tyre surface automatic feeding system |
| CN109228439A (en) * | 2018-09-29 | 2019-01-18 | 软控股份有限公司 | Radial-ply tyre feeding device and radial-ply tyre processing method |
| CN109228440A (en) * | 2018-09-29 | 2019-01-18 | 软控股份有限公司 | Radial-ply tyre feeding device and radial-ply tyre processing method |
| CN109278330A (en) * | 2018-11-07 | 2019-01-29 | 上海欣南橡胶机械有限公司 | A kind of tread ply laminating apparatus and tyre building machine |
| CN109940915A (en) * | 2019-04-11 | 2019-06-28 | 湖北玲珑轮胎有限公司 | The material of Telescopic swing conveys laminating apparatus |
| CN110253920A (en) * | 2019-07-19 | 2019-09-20 | 软控股份有限公司 | A kind of tyre surface feed frame after-frame and method of feeding |
| CN110450446A (en) * | 2019-08-13 | 2019-11-15 | 赛轮集团股份有限公司 | Laminating apparatus is cut automatically for two drum tire shaping cushion glue |
| CN113696530A (en) * | 2021-10-28 | 2021-11-26 | 天津赛象科技股份有限公司 | Automatic fixed-length cutting, fitting and feeding device and method for wrapping cloth at steel wire seam allowance |
| CN116147507A (en) * | 2023-04-18 | 2023-05-23 | 钛玛科（北京）工业科技有限公司 | Crimping station intelligent detection system |
| CN116714294A (en) * | 2023-06-19 | 2023-09-08 | 肇庆骏鸿实业有限公司 | Automatic laminating production line of duplex position tread of tire building machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100769644B1 (en) * | 2006-11-20 | 2007-10-23 | 한국타이어 주식회사 | Carrying apparatus for both autobooking and bobbin winding of extruded tread |
| KR100883022B1 (en) * | 2007-03-29 | 2009-02-12 | 금호타이어 주식회사 | Reel tread servicer |
| CN202540767U (en) * | 2011-12-31 | 2012-11-21 | 软控股份有限公司 | Tread feeding frame |
| CN204936249U (en) * | 2015-09-08 | 2016-01-06 | 杭州朝阳橡胶有限公司 | A kind of tyre building machine tyre surface feed frame |
| CN205553280U (en) * | 2016-03-24 | 2016-09-07 | 青岛万龙智控科技有限公司 | Automatic tread feedway |
-
2016
- 2016-03-24 CN CN201610172174.5A patent/CN105690822B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100769644B1 (en) * | 2006-11-20 | 2007-10-23 | 한국타이어 주식회사 | Carrying apparatus for both autobooking and bobbin winding of extruded tread |
| KR100883022B1 (en) * | 2007-03-29 | 2009-02-12 | 금호타이어 주식회사 | Reel tread servicer |
| CN202540767U (en) * | 2011-12-31 | 2012-11-21 | 软控股份有限公司 | Tread feeding frame |
| CN204936249U (en) * | 2015-09-08 | 2016-01-06 | 杭州朝阳橡胶有限公司 | A kind of tyre building machine tyre surface feed frame |
| CN205553280U (en) * | 2016-03-24 | 2016-09-07 | 青岛万龙智控科技有限公司 | Automatic tread feedway |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946261A (en) * | 2016-06-27 | 2016-09-21 | 天津赛象科技股份有限公司 | Auxiliary material passing device for splicing |
| CN106273592A (en) * | 2016-08-29 | 2017-01-04 | 桂林梵玛科机械有限公司 | Fibercord tapered cut joint automatic attaching system and applying method |
| CN106273592B (en) * | 2016-08-29 | 2018-12-04 | 桂林梵玛科机械有限公司 | Fibercord tapered cut connector automatic attaching system and applying method |
| CN106863456A (en) * | 2017-02-20 | 2017-06-20 | 萨驰华辰机械(苏州)有限公司 | The flexible sizing methods of tire prepackage band and length control device |
| CN106863456B (en) * | 2017-02-20 | 2018-10-12 | 萨驰华辰机械(苏州)有限公司 | The flexible sizing methods of tire prepackage band and length control device |
| CN108790229A (en) * | 2018-06-22 | 2018-11-13 | 杭州朝阳橡胶有限公司 | A kind of tyre surface automatic feeding system |
| CN108790229B (en) * | 2018-06-22 | 2023-07-28 | 杭州朝阳橡胶有限公司 | Automatic tread feeding system |
| CN109228439A (en) * | 2018-09-29 | 2019-01-18 | 软控股份有限公司 | Radial-ply tyre feeding device and radial-ply tyre processing method |
| CN109228440A (en) * | 2018-09-29 | 2019-01-18 | 软控股份有限公司 | Radial-ply tyre feeding device and radial-ply tyre processing method |
| CN109228440B (en) * | 2018-09-29 | 2024-02-09 | 软控股份有限公司 | Radial tire feeding device and radial tire processing method |
| CN109228439B (en) * | 2018-09-29 | 2023-12-12 | 软控股份有限公司 | Radial tire feeding device and radial tire processing method |
| CN109278330A (en) * | 2018-11-07 | 2019-01-29 | 上海欣南橡胶机械有限公司 | A kind of tread ply laminating apparatus and tyre building machine |
| CN109278330B (en) * | 2018-11-07 | 2023-12-01 | 上海欣南橡胶机械有限公司 | Tread layer laminating device and tire forming machine |
| CN109940915A (en) * | 2019-04-11 | 2019-06-28 | 湖北玲珑轮胎有限公司 | The material of Telescopic swing conveys laminating apparatus |
| CN110253920A (en) * | 2019-07-19 | 2019-09-20 | 软控股份有限公司 | A kind of tyre surface feed frame after-frame and method of feeding |
| CN110450446A (en) * | 2019-08-13 | 2019-11-15 | 赛轮集团股份有限公司 | Laminating apparatus is cut automatically for two drum tire shaping cushion glue |
| WO2023070828A1 (en) * | 2021-10-28 | 2023-05-04 | 天津赛象科技股份有限公司 | Automatic fixed-length cutting, attaching and feeding device for steel wire seam wrapping cloth and method therefor |
| CN113696530A (en) * | 2021-10-28 | 2021-11-26 | 天津赛象科技股份有限公司 | Automatic fixed-length cutting, fitting and feeding device and method for wrapping cloth at steel wire seam allowance |
| CN116147507B (en) * | 2023-04-18 | 2023-07-07 | 钛玛科（北京）工业科技有限公司 | Crimping station intelligent detection system |
| CN116147507A (en) * | 2023-04-18 | 2023-05-23 | 钛玛科（北京）工业科技有限公司 | Crimping station intelligent detection system |
| CN116714294A (en) * | 2023-06-19 | 2023-09-08 | 肇庆骏鸿实业有限公司 | Automatic laminating production line of duplex position tread of tire building machine |
| CN116714294B (en) * | 2023-06-19 | 2024-01-23 | 肇庆骏鸿实业有限公司 | Automatic laminating production line of duplex position tread of tire building machine |
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| CN105690822B (en) | 2017-11-03 |
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Denomination of invention: Automatic tread feeding device Effective date of registration: 20200122 Granted publication date: 20171103 Pledgee: Qingdao Huitong Chinese financing Company limited by guarantee Pledgor: QINGDAO WANLONG INTELLIGENT CONTROL TECHNOLOGY CO., LTD. Registration number: Y2020370010001 |
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Date of cancellation: 20210615 Granted publication date: 20171103 Pledgee: Qingdao Huitong Chinese financing Company limited by guarantee Pledgor: QINGDAO WANLONG INTELLIGENT TECHNOLOGY Co.,Ltd. Registration number: Y2020370010001 |
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