CN101966756B - Full automatic tread abutting machine and abutting method thereof - Google Patents
Full automatic tread abutting machine and abutting method thereof Download PDFInfo
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- CN101966756B CN101966756B CN 200910017349 CN200910017349A CN101966756B CN 101966756 B CN101966756 B CN 101966756B CN 200910017349 CN200910017349 CN 200910017349 CN 200910017349 A CN200910017349 A CN 200910017349A CN 101966756 B CN101966756 B CN 101966756B
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Abstract
The invention relates to a full automatic tread abutting machine and an abutting method thereof. In a conveying process, tread rubber is moderately rolled, and the cut tread rubber shorter than the surface perimeter of a tire carcass is spread and stretched. The tread abutting machine mainly comprises a base, a host machine, a separating and combining pressing roller device, a cutting device, a back conveying device and a front conveying device, wherein the front conveying device is provided with a front pressing roller assembly, a middle pressing roller assembly and a conveying roller assembly which are installed at the upper parts of panels at two sides; the front pressing roller assembly comprises a group of support rollers and front pressing rollers of which the vertical center lines are superposed, and a clearance is left in between for the tread rubber to pass through; the support rollers and the front pressing rollers are respectively arranged by shafts between the panels at two sides above a conveying roller drum; the middle pressing roller assembly comprises a middle roller drum sleeved on a middle roller drum shaft; two ends of the middle roller drum shaft are arranged by shafts between the panels at two sides through bearings and expansion sleeves; at least the bearing and the expansion sleeve at one side are connected with one middle pressing roller swinging arm; and the middle pressing roller swinging arm is simultaneously connected with a driving stem of a swinging cylinder.
Description
Technical Field
The invention provides a full-automatic tread laminating machine and a laminating method thereof, which are particularly applied to a tread rubber laminating process in a tire retreading process and belong to the field of rubber machinery.
Background
Due to the widespread use of vehicles such as automobiles and airplanes, a large amount of discarded tires are required to be disposed of every year. Not only waste of rubber resources is formed, but also a series of problems of environmental pollution are brought. At present, a retreading method is generally adopted for a worn tire with a worn tread pattern to be put into recycling again.
The existing tire retreading equipment adopts a polishing machine to polish the tread of a used tire, then a middle pad is adhered to a tire body, a new annular tread is sleeved on the tire body, a composite part is formed by pressing and attaching, and finally the composite part is sent into a vulcanizing tank for vulcanization molding. In the process of sleeving the annular tire tread, as the tire body is hard and the middle cushion adhesive property attached to the surface of the tire body is high, the annular tire tread and the tire body are difficult to accurately sleeve, the deviation phenomenon often occurs, or air bubbles are left between the annular tire tread and the tire body, so the tightness of the composite processing of the components is poor.
At present, a strip-shaped tread rubber is directly wound on the surface of a tire body in a retreading mode, although the problem of deviation of the tread and the tire body in a sleeved mode can be solved, a certain error exists between the cut tread rubber and the circumference of the surface of the tire body, the tread rubber is often not long enough or a surplus head is remained, and the problems are remedied in a manual mode, so that the extra workload of manually assembling the tire is formed.
For example, when the length of the tread rubber is not sufficient, manual stretching is usually adopted, and excessive stretching of the tread rubber causes local deformation to affect the fit between the tread rubber and the tire body, and local bubbles are also formed; when the length of the tread rubber is too long, the tread rubber needs to be cut manually, so that certain material waste is caused.
Above current tread rubber laminating processing method all has the lower problem of machining precision, and to the tire of a certain specification model, tread rubber length is a fixed numerical value promptly after deciding, lacks the dynamic adjustment ability among the laminating process, is difficult to overcome to the error that leads to because production facility, material essence elasticity, both directly influences tread rubber laminating quality, also leads to renovating production efficiency's low simultaneously.
Disclosure of Invention
The full-automatic tread laminating machine and the laminating method thereof provided by the invention aim to solve the problems and moderately roll the tread rubber in the conveying process, and stretch the cut tread rubber which is shorter than the perimeter of the surface of the tire body, so that the length of the wound and laminated tread rubber can be optimally close to the perimeter of the surface of the tire body.
The invention aims to realize a full-automatic tread fitting device and a control method, manual intervention and manual remedial measures are not needed, the automation degree is higher, tread rubber can be completely wound around the periphery of a tire body when being fitted to the surface of the tire body, and the actual length of the tread rubber can be dynamically adjusted on line.
The other purpose of the invention is to reduce the precision requirement of cutting the tread rubber length, remove the extra workload of manually stretching the tread rubber, save the material for the tread rubber and improve the working efficiency of the whole tread rubber fitting.
The other purpose of the invention is to control the same longitudinal central line between the tread rubber and the tire body when conveying and extending the tread rubber, thereby ensuring that the phenomenon of deviation can not occur.
The invention also aims to roll and extend the tread rubber through the roller device, and the stretching acting force is uniformly distributed at the transverse local part of the tread rubber, so that the local deformation caused by improper force can be avoided, the fit tightness between the tread rubber and the tire body is improved, and air bubbles are not easy to remain.
In order to achieve the above purpose, the full-automatic tread laminating machine mainly comprises the following devices:
a main machine which is connected on the tracks on the two sides of the base in a sliding way, a split-combination pressing roller device which is arranged on one side of the main machine and is used for pressing tread rubber, and a cutting device, a rear conveying device and a front conveying device which are connected in sequence along the conveying direction of the tread rubber, which are different from the prior art,
the front conveying device is provided with a front press roller assembly, a middle press roller assembly and a conveying roller assembly which are arranged on the upper parts of two side panels. Wherein,
the conveying roller assembly comprises a plurality of conveying rollers axially arranged between two side panels.
The front pressing roller assembly comprises a group of carrier rollers and a front pressing roller, wherein the vertical central lines of the carrier rollers are overlapped, and gaps are reserved between the carrier rollers and the front pressing roller to allow tread rubber to pass through, and the carrier rollers and the front pressing roller are respectively axially arranged between the two side panels and above the conveying roller.
The middle compression roller assembly comprises a middle roller sleeved on a middle roller shaft, two ends of the middle roller shaft are arranged between two side panels through a bearing and an expansion sleeve shaft, the bearing and the expansion sleeve at least one side are connected with a middle compression roller swing arm, and the middle compression roller swing arm is simultaneously connected with a driving rod of a swing cylinder.
As described above, the tread rubber is conveyed forward to the carcass surface on the conveying roller assembly in the front conveying device, and the conveying roller may be a driving mechanism for providing forward conveying power to the tread rubber, or may be a non-powered suspension roller for providing conveying power to the tread rubber through the rear conveying device.
In the conveying process, the front pressing roller assembly has a surface clamping effect on the tread rubber, and meanwhile, the middle pressing roller assembly rolls the tread rubber intermittently, namely, the middle roller achieves the extension and stretching of the tread rubber.
The switching between the states that the middle roller rolls the tread rubber downwards or releases the tread rubber upwards from the surface of the tread rubber and the pressure applied to the surface of the tread rubber by the middle roller are adjusted by driving a swing arm of the middle pressing roller through a swing cylinder.
The adjustment of the displacement and the output force of the swing cylinder driving rod can be realized by adopting a proportional control valve.
In order to improve the precision of the stretched tread rubber and realize the complete matching of the tread rubber and the surface of a tire body, the following improvement and refinement schemes aiming at the front press roll component can be adopted:
the roller carrier is sleeved on the roller carrier shaft, two ends of the roller carrier shaft are installed on the two side panels through bearings, the bearing on one side is sequentially connected with the coupler and the rotary encoder through a connecting shaft, and the rotary encoder is installed on the panels.
When tread rubber passes between the carrier roller and the front pressing roller, the carrier roller is driven by the tread rubber to rotate, and the actual length of the tread rubber can be calculated through the end rotary encoder.
Because the tread rubber is cut to be shorter, the difference is provided relative to the surface perimeter of the tire body, and the actual length of the extended and stretched tread rubber can be directly fed back to the control of the rolling time and the rolling acting force of the middle roller.
The difference between the actual length of the tread rubber and the surface perimeter of the tire body is compensated by dynamically adjusting the rolling time and the rolling acting force, so that the final length of the tread rubber is matched with the surface perimeter of the tire body.
For the clamping action of roller assembly to tread rubber before optimizing, avoid because of the too big unexpected stretch of clamping action force, or return clamping action force undersize and lead to the tread rubber off tracking, can take following improvement scheme:
the front compression roller is connected to the lower portion of the front compression roller beam, two ends of the front compression roller beam are respectively installed on the panel through the bearing and the expansion sleeve, the bearing and the expansion sleeve are simultaneously connected to one side end of the front compression roller swing arm, and the other side end of the front compression roller swing arm is connected with the driving rod of the air cylinder.
The front pressing roller assembly is matched with the middle pressing roller assembly to stretch the tread rubber. In an effective controllable range, the larger the clamping acting force of the front pressing roller assembly on the tread rubber is, the larger the stretching length of the middle pressing roller assembly on the tread rubber is.
The clamping effect of preceding compression roller subassembly to tread rubber swings around bearing and the tight cover that expands through cylinder drive front compression roller swing arm, and the pressing force of front compression roller for tread rubber surface is adjusted through front compression roller crossbeam this moment.
In order to ensure that the tread rubber is clamped and stretched, the deviation phenomenon cannot be caused due to local stress, the following centering structure can be adopted:
the front conveying device also comprises a group of left and right roller retaining assemblies. Wherein,
the two side baffles are respectively arranged above the conveying roller in parallel through a bracket, and a plurality of rollers are arranged at the inner sides of the two side baffles in opposite directions.
The tread rubber is conveyed forwards between the left and right roller retaining assemblies, the side edges of the tread rubber slide along the rollers on the two sides, and when extension stretching is carried out, the tread rubber is limited between the left and right roller retaining assemblies and cannot deflect to one side, so that the central line of the tread rubber can be ensured to be always superposed with the central line of a tire body.
The two-side centering structure is aimed at the width of the tread rubber of a certain specification model, and when the specification of the retreaded tire changes, the width of the tread rubber is changed along with the width of the tread rubber. At this point, the following further optimization scheme can be adopted:
the supports on the two sides of the left blocking roller component and the right blocking roller component are respectively sleeved on a ball screw pair, a driving wheel which is in driving connection with a motor and a speed reducer is meshed with the ball screw pair, and linear bearings at the two ends of each support are sleeved on a guide optical axis.
According to different tread rubber width specifications, the motor and the speed reducer drive the ball screw pair to rotate clockwise or anticlockwise through the driving wheel, the supports on the two sides move in opposite directions or oppositely, and the distance between the baffles on the two sides can be adjusted.
On the basis of applying the full-automatic tread laminating machine, the invention also realizes the laminating method as follows:
the rim on the motor-driven host machine drives the retreaded tire to rotate, the tread rubber is conveyed to the surface of the tire body after being cut by the cutting device through the rear conveying device and the front conveying device in sequence, and the tread rubber is pressed on the tire body by the split-combined pressing roller device. The difference from the prior art is that,
the length of the tread rubber to be cut is smaller than the circumference of the surface of the tire carcass.
In the process of pressing the tread rubber on the surface of the tire body, a vertical clamping acting force is applied to the tread rubber by a carrier roller and a front pressing roller of the front conveying device, and meanwhile, the middle roller rolls the tread rubber downwards to stretch the tread rubber longitudinally.
Wherein, after being rolled by the middle roller and longitudinally extended and stretched, the actual length of the tread rubber is increased.
The actual length of the tread rubber when passing through the carrier roller and the front press roller is counted by using a rotary encoder connected to the side end of the carrier roller shaft.
And according to the difference between the real-time length of the extended and stretched tread rubber and the surface perimeter of the tire body, the rolling acting force and action of the middle roller on the tread rubber are controlled and randomly changed.
The more optimized scheme is that the vertical distance of the front pressing roller relative to the carrier roller is controlled, and the vertical clamping acting force applied to the tread rubber by the carrier roller and the front pressing roller is adjusted.
In summary, the full-automatic tread laminating machine and the laminating method thereof have the advantages and beneficial effects that: 1. moderate rolling and stretching of tread rubber during conveying process, wherein the tread rubber shorter than the circumference of the surface of a tire body is stretched and stretched
The stretching is performed to reach the matched length, so that the full-automatic tread fitting device and the control method are realized, manual intervention and manual remedial measures are not needed, and the automation degree is higher.
2. The tread rubber actual length is adjusted on line and dynamically, and can be completely wound when being attached to the surface of a tire body without remaining heads.
3. The precision control of the cut tread rubber length is reduced, the additional workload of manually stretching the tread rubber or cutting the excess head is not needed, and the work efficiency of retreading the whole tire is improved.
4. Can effectively save the material for the tread rubber and reduce the retreading cost of the tire.
5. The tread rubber and the tire body are controlled to keep longitudinal centering coaxiality, the phenomenon of deviation is avoided, the attaching operation accuracy is high, the tightness is strong, and air bubbles are not easy to leave.
Drawings
The invention will now be further described with reference to the accompanying drawings
FIG. 1 is a schematic view of the fully automated tread applicator;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of the front conveyor;
FIG. 4 is a side schematic view of FIG. 3;
FIG. 5 is a schematic transverse cross-section of FIG. 4;
FIG. 6 is a top view of FIG. 4;
fig. 7 is a schematic view of a connection structure of the carrier roller;
FIG. 8 is a schematic view of a coupling structure of the front press roll;
FIG. 9 is a schematic illustration of the left and right stop roller assemblies;
FIG. 10 is a side schematic view of FIG. 9;
as shown in fig. 1 to 10, the joining/joining roller device 1, the main body 2, the rim 21, the motor and speed reducer 22, the front conveyor 3, the rear conveyor 4, the main driving roller 41, the motor and speed reducer 42, the cutting device 5, and the base 6.
The device comprises a front press roll assembly 30, a carrier roller 300, a carrier roller shaft 302, a bearing 303, a connecting shaft 304, a coupler 305, a rotary encoder 306, a front press roll 301, a front press roll beam 307, a bearing and expansion sleeve 308, a front press roll swing arm 309 and an air cylinder 3091;
the device comprises a middle press roll assembly 31, a middle roller shaft 310, a middle roller 311, a bearing and expansion sleeve 312, a middle press roll swing arm 313 and a swing cylinder 314;
a conveying roller assembly 32, a conveying roller 320;
the left and right baffle roller assembly 33, the baffle 330, the bracket 331, the roller 332, the ball screw pair 333, the linear bearing 334, the guide optical axis 335, the driving wheel 336, the motor and the speed reducer 337, and the panel 34.
The dashed lines in fig. 1 indicate retreaded tires.
Detailed Description
Embodiment 1, as shown in fig. 1 and 2, the fully automatic tread laminating machine includes a main machine 2, and a rim 21 which is driven to rotate by a motor and a speed reducer 22 and bears a retreaded tire is provided on the main machine 2.
The main machine 2 is connected on the tracks on the two sides of the base 6 in a sliding manner, and a pressing and combining roller device 1 for pressing tread rubber is further arranged on one side of the main machine 2.
A cutting device 5, a rear conveying device 4 and a front conveying device 3 are connected in sequence along the tread rubber conveying direction.
The main driving roller 41 in the rear conveyor 4 is driven to rotate by a motor and a speed reducer 42, thereby providing power for forward conveyance of the tread rubber.
As shown in fig. 3 to 10, the front conveying device 3 includes a front roller assembly 30, a middle roller assembly 31, a conveying roller assembly 32, and left and right roller assemblies 33 mounted on the upper portions of both side panels 34. Wherein,
during the conveying process, the front roller assembly 30 forms a surface clamping effect on the tread rubber, and meanwhile, the middle roller assembly 31 rolls the tread rubber intermittently, namely, the middle roller 311 realizes the extension and stretching of the tread rubber.
The front pressing roller assembly 30 comprises a group of supporting rollers 300 and a front pressing roller 301, and the supporting rollers 300 and the front pressing roller 301 are respectively axially arranged between the two side panels 34 and above the conveying roller 320. The vertical centerlines of the idler 300 and the front pressure roller 301 coincide with each other with a gap therebetween to allow the tread rubber to pass therethrough.
The carrier roller 300 is sleeved on a carrier roller shaft 302, two ends of the carrier roller shaft 302 are installed on the two side panels 34 through bearings 303, the bearing 303 on one side is sequentially connected with a coupler 305 and a rotary encoder 306 through a connecting shaft 304, and the rotary encoder 306 is installed on the panel 34.
The front press roll 301 is connected to the lower part of a front press roll beam 307, two ends of the front press roll beam 307 are respectively installed on the panel 34 through a bearing and an expansion sleeve 308, the bearing and the expansion sleeve 308 are simultaneously connected to one side end of the front press roll swing arm 309, and the other side end of the front press roll swing arm 309 is connected with a driving rod of the air cylinder 3091.
The middle press roll assembly 31 comprises a middle roller 311 sleeved on a middle roller shaft 310, and two ends of the middle roller shaft 310 are axially arranged between the two side panels 34 through bearings and an expansion sleeve 312. The bearing and the expansion sleeve 312 on one side are connected with a middle press roll swing arm 313, and the middle press roll swing arm 313 is simultaneously connected with a driving rod of a swing cylinder 314.
The conveying roller assembly 32 includes a plurality of conveying rollers 320 axially disposed between the two side panels 34, the tread rubber is conveyed forward to the carcass surface along the conveying rollers 320, and the conveying rollers 320 are unpowered suspension rollers.
The two side baffles 330 of the left and right baffle roller assemblies 33 are respectively arranged above the conveying roller 320 in parallel through a bracket 331, and a plurality of rollers 332 are arranged at the inner sides of the two side baffles 330 opposite to each other.
The brackets 331 on both sides are respectively sleeved on a ball screw pair 333, a driving wheel 336 which is driven and connected by a motor and a speed reducer 337 is meshed with the ball screw pair 333, and the linear bearings 334 on both ends of the brackets 331 are respectively sleeved on a guide optical axis 335.
The full-automatic tread laminating machine is applied, and the following improvement scheme is provided for the laminating method:
the retreaded tire is mounted on a rim 21 of a main machine 2, the rim 21 is driven by a motor 6 to drive the tire to rotate, strip-shaped tread rubber is firstly cut by a cutting device 5, and the length of the cut tread rubber is smaller than the circumference of the surface of a tire body.
The tread is sequentially conveyed to the surface of the tire carcass through the rear conveying device 4 and the front conveying device 3, and the split-combination roller device 1 presses the tread rubber on the surface of the tire carcass.
In the process of pressing the tread rubber on the surface of the tire body, the carrier roller 300 and the front pressing roller 301 of the front conveying device 3 apply a vertical clamping acting force on the tread rubber, and meanwhile, the middle roller 311 rolls the tread rubber downwards to stretch the tread rubber longitudinally.
In this embodiment, the cut tread rubber is shorter than the circumference of the tire carcass surface, and is stretched to a length matching the circumference of the carcass surface by rolling down the tread rubber by the intermediate roller 311.
For example, the tread rubber is cut by the cutting device 5 to 180 cm (abbreviated as a1), the circumference of the carcass surface is 185 cm, that is, the length of the stretched tread rubber should reach 185 cm (abbreviated as A3), and the actual length of the tread rubber during the stretching process is a dynamically changing variable (abbreviated as a 2).
The main control system of the full-automatic tread laminating machine records and stores the three length data to realize the following specific control process.
After being rolled by the intermediate roller 311 and longitudinally extended and stretched, the actual length a2 of the tread rubber is gradually increased.
The actual length of the tread rubber as it passes over the idlers 300 and the front press roller 301 is measured using a rotary encoder 306 connected to the side end of the idler shaft 302.
Each revolution of the rotary encoder 306 corresponds to the distance the tread band is advanced, and the number of revolutions is fed back to the main control system and converted to the actual length a2 of the tread band after being stretched.
When the tread rubber passes between the carrier roller 300 and the front pressing roller 301, the tread rubber drives the carrier roller 300 to rotate, at the moment, the main control system starts to calculate the rotation number of the rotary encoder 306, and the actual length A2 of the tread rubber gradually approaches to A3 from A1 along with the downward rolling of the middle roller 311.
The switching between the states that the middle roller 311 rolls the tread rubber downwards or releases the tread rubber upwards from the surface of the tread rubber and the pressure applied to the surface of the tread rubber by the middle roller 311 is adjusted by driving the middle pressing roller swing arm 313 through the swing cylinder 314.
The adjustment of the displacement and the output force of the driving rod of the swing cylinder 314 can be realized by adopting a proportional control valve, namely, the air supply quantity and the air supply pressure of the swing cylinder 314 are adjusted by adopting the proportional control valve, so that the extension/retraction displacement of the driving rod and the adjustment of the output force are realized.
The change of the tread rubber actual length A2 is uploaded to a main control system, and the main control system can adjust the working state of the proportion adjusting valve according to the specific value of the difference between A2 and A3, so that the downward rolling time and the rolling acting force of the middle roller 311 are realized, and the change of the tread rubber actual length A2 is finally reflected.
The adjustment process is circularly carried out until the difference between A2 and A3 completely meets the process standard requirement of the tread rubber fitting.
When the actual length A2 of the tread rubber is matched with the perimeter A3 of the surface of the tire body, the driving rod of the swing cylinder 314 retracts and drives the middle pressing roller swing arm 313 to swing clockwise for a certain angle, at the moment, the middle roller shaft 310 is lifted upwards through the bearing and the expansion sleeve 312, the middle roller 311 is separated from the surface of the tread rubber, and the extending and stretching operation of the tread rubber is finished.
The intermediate roller assembly 31 is an actuator for stretching the tread band, while the front roller assembly 30 provides a grip for the tread band.
If the clamping force is too large, the tread rubber is stretched accidentally, and the tread rubber attached to the tire body is left with a surplus and needs to be cut off manually. ,
if the clamping acting force is too small, the middle roller 311 slips on the surface of the tread rubber and deviates, so that the front press roller assembly 30 has a fixed point matching function in the lateral direction of the middle press roller assembly 31.
Within the effective controllable range, the larger the clamping acting force of the front press roll assembly 30 on the tread rubber is, the larger the stretching length of the middle press roll assembly 31 on the tread rubber is.
The clamping action of the front roller assembly 30 on the tread rubber drives the front roller swing arm 309 to swing around the bearing and the expansion sleeve 308 through the air cylinder 3091, and at the moment, the pressing force of the front roller 301 relative to the surface of the tread rubber is adjusted through the front roller beam 307.
When the middle roller 311 is separated from the surface of the tread rubber, the front pressing roller 301 is simultaneously separated from the surface of the tread rubber, and the tread rubber is not clamped by the front pressing roller 301 and the carrier roller 300.
The vertical distance between the front pressing roller 301 and the carrier roller 300 is controlled according to tread rubber with different thickness specifications and different materials, and the vertical clamping acting force applied to the tread rubber by the carrier roller 300 and the front pressing roller 301 can be adjusted.
The vertical clamping acting force is adjusted by inputting the tread rubber thickness value and the friction coefficients of different materials into a main control system by an operator before the fitting operation,
the air supply pressure of the air cylinder 3091 is controlled by a proportional regulating valve to drive the front press roll swing arm 309 to rotate around the bearing and the expansion sleeve 308 to change the vertical spacing of the front press roll 301 relative to the idler 300.
Or the air supply pressure and the air supply amount of the air cylinder 3091 are controlled to adjust the pressure of the front press roll 301 relative to the surface of the tread rubber so as to improve the static friction coefficient when the tread rubber is clamped.
During the process of forward conveying, clamping, extending and stretching of the tread rubber, the side edges of the tread rubber slide along the rollers of the left and right roller retaining assemblies 33. The tread rubber is confined between the left and right stop roller assemblies 33 and cannot be deflected to the side, and the center line of the tread rubber always coincides with the center line of the carcass.
The spacing between the left and right stop roller assemblies 33 is dynamically adjustable to accommodate tread bands of different widths.
The motor and the speed reducer 337 drives the ball screw pair 333 to rotate clockwise or counterclockwise through the driving wheel 336, the two side supports 331 carry the baffles 330 to move along the ball screw pair 333 in opposite directions or in opposite directions, and the distance between the baffles 330 on the two sides can be adjusted.
During the transverse movement of the baffle plate 330, the linear bearing 334 moves in a limited way on the guide optical axis 335 to provide an end auxiliary correction force for the support 331 so as to prevent the baffle plate 330 from deviating.
Claims (7)
1. The utility model provides a full-automatic tread rigging machine, is including host computer (2) of sliding connection on base (6) both sides track, sets up deciliter compression roller device (1) that is used for pressfitting tread rubber in host computer (2) one side and decide device (5), back conveyor (4) and preceding conveyor (3) that connect gradually along tread rubber direction of delivery, its characterized in that:
the front conveying device (3) is provided with a front press roller component (30), a middle press roller component (31) and a conveying roller component (32) which are arranged at the upper parts of two side panels (34),
the conveying roller assembly (32) comprises a plurality of conveying rollers (320) which are axially arranged between two side panels (34);
the front pressing roller assembly (30) comprises a group of carrier rollers (300) and a front pressing roller (301) which are overlapped with each other along the vertical central line and have a gap therebetween to allow tread rubber to pass through, and the carrier rollers (300) and the front pressing roller (301) are respectively axially arranged between the two side panels (34) and above the conveying roller (320);
the middle pressing roller assembly (31) comprises a middle roller (311) sleeved on a middle roller shaft (310), two ends of the middle roller shaft (310) are axially arranged between two side panels (34) through a bearing and an expansion sleeve (312), the bearing and the expansion sleeve (312) on at least one side are connected with a middle pressing roller swing arm (313), and the middle pressing roller swing arm (313) is simultaneously connected with a driving rod of a swing cylinder (314).
2. The fully automatic tread laminating machine of claim 1, wherein: the carrier roller (300) is sleeved on a carrier roller shaft (302), two ends of the carrier roller shaft (302) are installed on two side panels (34) through bearings (303), the bearing (303) on one side is sequentially connected with a coupler (305) and a rotary encoder (306) through a connecting shaft (304), and the rotary encoder (306) is installed on the panels (34).
3. The fully automatic tread laminating machine of claim 2, wherein: the front compression roller (301) is connected to the lower portion of a front compression roller beam (307), two ends of the front compression roller beam (307) are respectively installed on the panel (34) through a bearing and an expansion sleeve (308), the bearing and the expansion sleeve (308) are simultaneously connected to one side end of the front compression roller swing arm (309), and the other side end of the front compression roller swing arm (309) is connected with a driving rod of the air cylinder (3091).
4. The fully automatic tread laminating machine of claim 1, 2 or 3, wherein: the front conveying device (3) also comprises a group of left and right roller retaining assemblies (33), wherein,
the two side baffles (330) are respectively arranged above the conveying roller (320) in parallel through a bracket (331), and a plurality of rollers (332) are arranged at the inner sides of the two side baffles (330) which are opposite to each other.
5. The fully automatic tread laminating machine of claim 4, wherein: the two side supports (331) are respectively sleeved on a ball screw pair (333), a driving wheel (336) which is in driving connection with a motor and a speed reducer (337) is meshed with the ball screw pair (333), and linear bearings (334) at two ends of each support (331) are sleeved on a guide optical axis (335).
6. A fitting method of a full-automatic tread fitting machine is characterized in that a motor (6) drives a rim on a main machine (2)
(21) In order to drive retreaded tire rotatory, the tread rubber is decided device (5) and is decided the back and pass through back conveyor (4), preceding conveyor (3) in proper order and be carried to tire matrix surface, and deciliter compression roller device (1) is with tread rubber pressfitting on the matrix, its characterized in that: the length of the cut tread rubber is less than the circumference of the surface of the tire carcass,
in the process of pressing the tread rubber on the surface of the tire body, a carrier roller (300) and a front press roller of the front conveying device (3)
(301) Applying a vertical clamping acting force to the tread rubber, and simultaneously rolling the tread rubber downwards by the middle roller (311) to longitudinally extend and stretch the tread rubber so as to increase the actual length of the tread rubber;
using a rotary encoder (306) connected to the side end of the carrier roller shaft (302), and recording the actual length of the tread rubber when the tread rubber passes through the carrier roller (300) and the front press roller (301);
and controlling and randomly changing the rolling acting force and acting time of the middle roller (311) on the tread rubber according to the difference between the real-time length of the extended and stretched tread rubber and the surface perimeter of the tire body.
7. The fitting method of the fully automatic tread fitting machine according to claim 6, characterized in that: and controlling the vertical distance between the front pressing roller (301) and the carrier roller (300), and adjusting the vertical clamping acting force exerted by the carrier roller (300) and the front pressing roller (301) on the tread rubber.
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| CN 200910017349 CN101966756B (en) | 2009-07-27 | 2009-07-27 | Full automatic tread abutting machine and abutting method thereof |
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| CN 200910017349 CN101966756B (en) | 2009-07-27 | 2009-07-27 | Full automatic tread abutting machine and abutting method thereof |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2014365B1 (en) * | 2015-02-27 | 2016-10-13 | Vmi Holland Bv | Conveyor and method for conveying a tire component. |
| CN106182851B (en) * | 2016-08-31 | 2018-06-29 | 海宁市睿创机械科技有限公司 | Tyre surface automatic feeding rack |
| CN108819305B (en) * | 2018-06-22 | 2023-11-28 | 杭州朝阳橡胶有限公司 | Tread turn-over and conveying device |
| CN109080185B (en) * | 2018-09-06 | 2024-04-19 | 三橡股份有限公司 | Tire tread winding unit and winding control method |
| CN113459551B (en) * | 2021-07-22 | 2022-11-04 | 赛轮集团股份有限公司 | Method for solving pressing and folding problems of semi-finished parts |
| CN114523702B (en) * | 2022-04-22 | 2022-07-12 | 广饶县计量测试检定所(广饶县产品质量检验所、广饶县橡胶轮胎产品与材料质量检验中心) | Method for ensuring pressing quality of special-shaped part in forming process |
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