CN116619804B - Radial tire surface bubble puncturing device and method - Google Patents

Abstract

The invention relates to the technical field of tire production and manufacturing, in particular to a radial tire surface bubble puncturing device and a puncturing method, which comprises a bottom plate, wherein the middle part of the rear side of the upper end surface of the bottom plate is fixedly connected with a supporting plate, the upper end of the supporting plate is rotationally connected with a fixed disc through a pin shaft, the middle parts around the fixed disc are fixedly connected with L-shaped blocks, the L-shaped blocks are embedded in racks through grooves and are slidably connected with the racks, one end of each rack, which is close to the axis of the fixed disc, is fixedly connected with a connecting rod, and the front end of each connecting rod is provided with a clamping mechanism; the device has the advantages of flexible adjustment effect on the puncturing position, expanding the puncturing angle, eliminating the puncturing dead angle, improving the overall puncturing efficiency and controlling the quality of the embryo.

Description

Radial tire surface bubble puncturing device and method

Technical Field

The invention relates to the technical field of tire production and manufacturing, in particular to a radial tire surface bubble puncturing device and a puncturing method.

Background

In the tire building process, various half-parts are mainly manufactured by manual or mechanical fitting. Due to the difference of adhesive materials between different half parts, the factors such as uneven rolling pressure of the roller at the seam allowance part, unstable lifting and clamping of the sector block and the like can cause air bubbles at the seam allowance part, and the air bubbles at the seam allowance part are known to occupy more than 90 percent of the defects of air bubbles of the tire, and the air bubbles cannot be completely eliminated in the vulcanization process, so that the defective rate of the tire is obviously improved.

For example, patent document with publication number CN217258572U discloses a device for puncturing air bubbles at the tire bead site, which comprises a positioning mechanism, a rotating mechanism and an executing mechanism, and converts manual operation of puncturing air bubbles at the tire bead site into mechanical automation operation, so that the working efficiency can be greatly improved; the positions of the limiting block and the puncture needle can be adjusted along the horizontal guide rail, so that the puncture operation can be conveniently carried out on the outer sub-opening and the inner sub-opening of the embryo; and the limiting block is provided with the groove, the curvature of the groove is continuously increased along with the axial direction away from the embryo, so that a larger range of puncturing angles of the embryo are obtained, and the puncturing dead angle is eliminated.

However, the above patent documents have the following disadvantages in practical application:

in the process of puncturing, the condition that embryo skew probably appears, stability is poor, influence and puncture efficiency, the contrast file does not set up the positioning mechanism to the embryo of different diameters and different thickness, lead to puncturing the in-process unable stability of guaranteeing the embryo, puncture the front position and can lead to the embryo the poor positioning nature of position can not fix, then lead to puncturing needle to prick the offset position, and because the bubble of embryo child mouth position department is unfixed, embryo all probably has the bubble in child mouth, outer child mouth position, interior child mouth position is darker, current pricking equipment can not prick the bubble of interior child mouth department, can seriously influence and puncture the quality.

Disclosure of Invention

The invention aims to provide a radial tire surface bubble puncturing device and a puncturing method, which are used for solving the problems in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the radial tire surface bubble puncturing device comprises a supporting component, wherein a driving component is installed on the supporting component, four groups of clamping mechanisms which are arranged back to back are fixedly installed at the output end of the driving component, a displacement mechanism is fixedly installed at the top of the supporting component, a puncturing mechanism corresponding to the clamping mechanism is fixedly installed at the top end of the displacement mechanism, and the driving component, the clamping mechanism, the displacement mechanism and the puncturing mechanism are electrically connected with a controller;

the driving assembly comprises a third motor, the output end of the third motor is fixedly connected with a fixed disc through a pin shaft, the middle parts around the fixed disc are fixedly connected with L-shaped blocks, the L-shaped blocks are embedded in racks through grooves and are connected with the racks in a sliding manner, one end, close to the axis of the fixed disc, of each rack is fixedly connected with a connecting rod, the periphery of the front end face of the fixed disc is rotationally connected with a first gear through the pin shaft, the first gears are meshed with the racks, the front end face of the fixed disc is rotationally connected with a gear ring through the grooves, and the gear ring is meshed with the first gears;

the clamping mechanism comprises a bearing seat fixed on a connecting rod, clamping blocks are connected to the middle parts of the front end and the rear end of the bearing seat in a sliding mode through grooves, a second connecting rod is connected to one end, far away from the bearing seat, of each clamping block through a pin shaft in a rotating mode, a third connecting rod is connected to one end, far away from the clamping blocks, of each second connecting rod through a pin shaft in a rotating mode, the middle parts of the third connecting rods are connected to the bearing seat through pin shafts in a rotating mode, a group of clamping blocks are connected with threaded rods in a threaded mode, and small servo motors are fixedly connected to the front ends of the threaded rods.

Preferably, the support assembly comprises a bottom plate, a support plate is fixedly connected to the middle part of the rear side of the upper end face of the bottom plate, the upper end of the support plate is rotationally connected with the fixed disc through a pin shaft, the third motor is fixed on the support plate, the end part of the L-shaped block is integrally formed with a dovetail block, and a dovetail groove which is assembled with the dovetail block in a sliding mode is formed in the rack.

Preferably, a toothed ring meshed with the second gear is arranged on the outer side wall of the gear ring, the length of the toothed ring is 1/4 of the circumference of the gear ring, the intersection points of the extension lines of the four groups of racks and the axis of the gear ring, and the clamps between the four groups of racks are all 90 degrees.

Preferably, the driving assembly further comprises a fixed block fixed on the right side of the upper end of the fixed disc, the upper end of the fixed block is rotationally connected with a second gear and a worm wheel through a pin shaft, the second gear is engaged and assembled on the outer surface of the gear ring, the upper end of the rear end face of the fixed disc is rotationally connected with a worm, the worm and the worm wheel are engaged with each other, and the end part of the worm is fixedly connected with a driving motor.

Preferably, the displacement mechanism comprises a fourth motor, the fourth motor main part is fixedly connected with the bottom plate, the fourth motor output end is fixedly connected with a sixth connecting rod through a pin shaft, the rear end of the sixth connecting rod is rotationally connected with the bottom plate through a pin shaft, the front end of the sixth connecting rod is rotationally connected with a first connecting rod through a pin shaft, the front end of the first connecting rod is rotationally connected with an L-shaped rod through a pin shaft, the top of the bottom plate is fixedly provided with a second groove plate, and the lower end of the L-shaped rod is slidingly assembled on the second groove plate.

Preferably, the axis of the pricking mechanism and the axis of the gear ring are positioned on a plumb plane, the pricking mechanism comprises a lifting component fixed on the L-shaped rod, the axis of the lifting component and the axis of the gear ring are collinear, and the output end of the lifting component is fixedly provided with a pricking component.

Preferably, the lifting assembly comprises a rotating motor fixedly connected to the L-shaped rod, a rectangular block is fixed at the output end of the rotating motor, a fourth connecting rod is rotatably connected to the left end and the right end of the rectangular block through pin shafts, a fifth connecting rod is rotatably connected to the upper end of the fourth connecting rod through pin shafts, a lifting block is rotatably connected to the upper end of the fifth connecting rod through pin shafts, a first motor is fixedly connected to the left side of the front end face of the rectangular block, the output end of the first motor is fixedly connected with the fourth connecting rod through pin shafts, and a guide rod which is slidably assembled with the L-shaped rod is fixed at the bottom of the lifting block.

Preferably, the thorn bubble subassembly includes the first recess board of fixed mounting at lifter block up end, both ends all are through recess sliding connection T type piece about the first recess board the both sides all fixedly connected with thorn needle on the terminal surface that the T type piece kept away from each other, terminal surface downside fixedly connected with spring that the T type piece is close to each other, the one end that the T type piece was kept away from to the spring links to each other with first recess board is fixed, first recess board up end middle part fixedly connected with second motor, second motor output is through round pin axle fixedly connected with cam.

Preferably, the outer surface of the bearing seat is arc-shaped, the clamping blocks are rectangular clamping plates, the two clamping blocks are symmetrically and slidably assembled on the outer side of the bearing seat, and the bearing seat is provided with a sliding groove for the clamping blocks to slide.

The puncturing method of the radial tire surface bubble puncturing device comprises the following specific steps:

s1, sleeving a tire blank on a clamping mechanism, starting a driving assembly by a controller to drive the clamping mechanism to move, centering and limiting the tire blank through four groups of clamping mechanisms, ensuring centering stability of the tire blank during installation, and measuring the radius size of the tire blank;

s2, starting a clamping mechanism by the controller to start working, clamping the front and back width of the centered embryo by using the clamping mechanism, and measuring the width of the embryo section;

s3, the controller controls the displacement mechanism to move to drive the puncturing mechanism to move to a position corresponding to the clamping mechanism, and then controls the lifting assembly to act according to the radius size of the tire blank to drive the puncturing assembly to move to the sub-opening position, so that the positioning accuracy is high;

s4, the controller controls the movement of the puncture assembly, and determines the width of the sub-opening according to the end face width measured by the clamping mechanism, so that the puncture assembly is controlled to match the corresponding overhanging length according to the width size, and the puncture needle is driven to puncture bubbles at the position of the sub-opening;

s5, the controller starts the driving assembly, the clamping mechanism and the embryo can be driven to synchronously rotate through the fixed disc, the piercing position is adjusted, the piercing quality of the bubble piercing assembly to bubbles is guaranteed, after the piercing operation is finished, the controller sequentially controls the bubble piercing assembly, the lifting assembly, the displacement mechanism, the clamping mechanism and the driving assembly to reset, and then the embryo is taken down.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the limit expansion of the inner side of the tire blank can be realized by utilizing the deviating movement of the four groups of clamping mechanisms, so that the centering limit of the tire blank can be realized by the four groups of clamping mechanisms, the centering stability of the tire blank during installation is ensured, the clamping blocks are rectangular clamping plates, the two groups of clamping blocks are symmetrically and slidably assembled on the outer side of the supporting seat, and the supporting seat is provided with the sliding grooves for the sliding of the clamping blocks, so that the tire blank with different diameters and different widths can be clamped and positioned, the operation is convenient and fast, the stability is high, the stability of the tire blank in the air bubble piercing working process is further ensured, and the piercing efficiency is higher.

2. According to the invention, the radius size of the tire blank is measured by utilizing the distance of outward movement of the clamping mechanisms, so that the centering limit installation of the tire blank is realized through the clamping mechanisms, the inner diameter size of the tire blank can be measured, the distance between the outer sides of the two groups of clamping mechanisms is the inner diameter of the tire blank, the controller can automatically control the ascending displacement of the lifting assembly to ensure that the puncture assembly just corresponds to the position of the child opening, then the controller controls the puncture assembly to start to act, and the controller can adjust the moving amount of the puncture mechanism in real time according to the sectional width of the tire blank so as to conveniently control the moving amount of the puncture mechanism to adapt to the child opening width of the tire blank.

3. According to the invention, the diameter and the width of the pattern embryo can be adaptively adjusted, the overhanging amount of the puncture bubble assembly can be controllably adjusted in sequence in the process of puncturing the inner side surface of the sub-mouth, the overhanging amount of the puncture bubble assembly is increased along with the overhanging of the lifting assembly, the moving amount of the puncture bubble assembly is adjusted in real time to adapt to the change of the puncturing position caused by the radian of the inner side surface of the sub-mouth, and meanwhile, the quality detection of the embryo can be realized according to the puncturing operation of the puncturing mechanism, and the quality control rate of the embryo is improved.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged schematic view of the area A in FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the area B of FIG. 1 according to the present invention;

FIG. 4 is a schematic view of a rear-view partial perspective structure of the present invention;

FIG. 5 is an enlarged view of the area C of FIG. 4 according to the present invention;

FIG. 6 is an enlarged schematic view of the structure of the area D in FIG. 4 according to the present invention;

FIG. 7 is a schematic view of the lancing mechanism of the present invention;

fig. 8 is a schematic view of the assembly structure of the worm wheel and worm of the present invention.

In the drawings, the list of components represented by the various numbers is as follows:

in the figure: 1. a bottom plate; 2. a support plate; 3. a fixed plate; 4. a gear ring; 5. a first gear; 6. a rack; 7. a support bracket; 8. a first link; 9. a clamping block; 10. a second link; 11. a third link; 12. a threaded rod; 13. a connecting rod; 14. an L-shaped block; 15. a second gear; 16. a worm wheel; 17. a fixed block; 18. an L-shaped rod; 19. rectangular blocks; 20. a first motor; 21. a fourth link; 22. a fifth link; 23. a lifting block; 24. a first groove plate; 25. a cam; 26. a spring; 27. a T-shaped block; 28. puncturing; 29. a worm; 30. a second motor; 31. a second groove plate; 32. a third motor; 33. a fourth motor; 34. a sixth link; 35. a displacement mechanism; 36. a clamping mechanism; 37. a puncturing mechanism; 38. a guide rod; 39. and rotating the motor.

Detailed Description

The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed in view of the appended claims.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

First embodiment

Referring to fig. 1-8, the present invention provides a technical solution:

the utility model provides a radial tire surface bubble pierces device, including supporting component, install drive assembly on the supporting component, drive assembly output fixed mounting has four sets of fixture 36 that set up dorsad, displacement mechanism 35 is fixed mounting in supporting component top, and displacement mechanism 35 top fixed mounting has the pricking mechanism 37 that corresponds with fixture 36, drive assembly, fixture 36, displacement mechanism 35, pricking mechanism 37 all and controller electric connection, during the use, realize the installation fixedly of overall structure through the supporting component, improve the stability of device, and drive assembly can drive fixture 36 and remove, make things convenient for fixture 36 to carry out the centre gripping location to the embryo, and fixture 36 itself can realize the centre gripping to the embryo, so can realize measuring embryo radius size and width size through fixture 36 itself, thereby for the action of pricking mechanism 37 and provide the reference basis, make things convenient for pricking mechanism 37 to correspond with the sub-mouth position of embryo, can impale to clear up the bubble of sub-mouth department when improving the degree of accuracy.

Referring to fig. 1-4, the driving assembly includes a third motor 32, an output end of the third motor 32 is fixedly connected with a fixed disc 3 through a pin shaft, an L-shaped block 14 is fixedly connected to a middle part around the fixed disc 3, the L-shaped block 14 is embedded into a rack 6 through a groove and is slidingly connected with the rack 6, a connecting rod 13 is fixedly connected to one end of the rack 6 near an axis of the fixed disc 3, a first gear 5 is rotatably connected to the periphery of a front end surface of the fixed disc 3 through a pin shaft, the first gear 5 is meshed with the rack 6, a gear ring 4 is rotatably connected to the front end surface of the fixed disc 3 through a groove, the gear ring 4 is meshed with the first gear 5, the driving assembly further includes a fixed block 17 fixed on the right side of the upper end of the fixed disc 3, a second gear 15 and a worm wheel 16 are rotatably connected to the upper end of the fixed block 17 through a pin shaft, the second gear 15 is meshed and assembled on the outer surface of the gear ring gear 4, a worm 29 is rotatably connected to the upper end of the rear end surface of the fixed disc 3, the worm 29 is meshed with the worm 16, and the end of the worm 29 is fixedly connected with the driving motor.

When the novel tire centering device is used, the controller starts the driving assembly, namely the driving motor, can drive the worm 29 to rotate, the worm 29 drives the worm wheel 16 to rotate, the second gear 15 can drive the gear ring 4 to rotate, the gear ring 4 rotates and simultaneously drives the first gear 5 to rotate, the first gear 5 drives the rack 6 to slide on the L-shaped block 14, the connecting rod 13 and the bearing seat 7 are enabled to be mutually close to each other along the radial direction, the clamping mechanism 36 can be driven to move in the opposite direction, so that the diameter size enclosed by the four groups of clamping mechanisms 36 is reduced, when the four groups of clamping mechanisms 36 move to the nearest position, the tire is in a reset state, then the tire is sleeved on the clamping mechanisms 36, the driving motor is controlled to reversely rotate, the limiting expansion of the inner side of the tire can be realized by the deviating movement of the four groups of clamping mechanisms 36, the centering limit of the tire can be realized by the four groups of clamping mechanisms 36, and the centering stability of the tire during the installation can be ensured.

Referring to fig. 1-4, the clamping mechanism 36 includes a support base 7 fixed on a connecting rod 13, the middle parts of the front and rear ends of the support base 7 are slidably connected with a clamping block 9 through grooves, one end of the clamping block 9, which is far away from the support base 7, is rotatably connected with a second connecting rod 10 through a pin, one end of the second connecting rod 10, which is far away from the clamping block 9, is rotatably connected with a third connecting rod 11 through a pin, the middle part of the third connecting rod 11 is rotatably connected with the support base 7 through a pin, a group of clamping blocks 9 are in threaded connection with a threaded rod 12, and the front end of the threaded rod 12 is fixedly connected with a small-sized servo motor.

During the use, the purpose of two sets of clamping blocks 9 that set up here is after controller control fixture 36 accomplishes the spacing installation to the embryo, control small-size servo motor work, can drive threaded rod 12 and rotate, thereby drive second connecting rod 10 through threaded rod 12 and rotate, under the cooperation of third connecting rod 11 and second connecting rod 10, make the clamping block 9 of rear side move forward, can press from both sides tight piece 9 in the front and back terminal surface of the sub-mouth position of embryo through two sets of clamping blocks 9 that move in opposite directions, can accomplish the side location work to the embryo, and the surface of supporting seat 7 is the arc, can match the embryo of different diameters, make supporting seat 7 and embryo inboard surface laminating, realize the tensioning centering operation to the embryo through fixture 36, and clamping block 9 is the rectangle grip block, two sets of clamping blocks 9 symmetry sliding fit in the outside of supporting seat 7, and set up the spout that supplies clamping block 9 to slide on the supporting seat 7, because at the beginning, set up on supporting seat 7 and set up the front and back terminal surface of sub-mouth position of child between two sets of clamping blocks 9, therefore, can accomplish the side location work to the embryo through the two sets of clamping blocks 9 when the same width of moving, can not puncture the embryo, and the diameter is fixed to the diameter of embryo is realized in the same, and the diameter is adjusted to the diameter of the embryo is convenient to be reached in the position, and the position is convenient to the position is more than the diameter of the embryo is adjusted to the diameter of the embryo to the side to the position of the embryo.

Referring to fig. 1, the support assembly includes a bottom plate 1, a support plate 2 is fixedly connected to the middle part of the rear side of the upper end surface of the bottom plate 1, the upper end of the support plate 2 is rotationally connected to a fixed disc 3 through a pin shaft, a third motor 32 is fixed on the support plate 2, a dovetail block is integrally formed at the end of an L-shaped block 14, a dovetail groove assembled with the dovetail block in a sliding manner is formed on a rack 6, the support of the fixed disc 3 is realized through the support plate 2, and the L-shaped block 14 is fixed on the fixed disc 3, so that the support of a connecting rod 13 and a clamping mechanism 36 is provided through the L-shaped block 14, and meanwhile, the connecting rod 13 can slide on the L-shaped block 14 to adapt to the movement of the clamping mechanism 36.

Referring to fig. 1, the displacement mechanism 35 includes a fourth motor 33, a main body portion of the fourth motor 33 is fixedly connected to the bottom plate 1, an output end of the fourth motor 33 is fixedly connected with a sixth connecting rod 34 through a pin shaft, a rear end of the sixth connecting rod 34 is rotatably connected to the bottom plate 1 through a pin shaft, a front end of the sixth connecting rod 34 is rotatably connected with a first connecting rod 8 through a pin shaft, a front end of the first connecting rod 8 is rotatably connected with an L-shaped rod 18 through a pin shaft, a second groove plate 31 is fixed at the top of the bottom plate 1, and a lower end of the L-shaped rod 18 is slidably assembled on the second groove plate 31.

Referring to fig. 2, a toothed ring meshed with the second gear 15 is provided on the outer sidewall of the gear ring 4, and the length of the toothed ring is 1/4 of the circumference of the gear ring 4, so that when the second gear 15 drives the gear ring 4 to rotate, motion interference with the L-shaped block 14 does not occur, and the intersection point of the extension lines of the four sets of racks 6 and the axis line of the gear ring 4 ensure the centering of the clamping mechanism 36 during the adjustment and clamping, and the clamps between the four sets of racks 6 are all 90 degrees, so that the clamping stability of the tire blank can be ensured in the process of clamping the tire blank by the four sets of clamping mechanisms 36.

Referring to fig. 1 and 4, the axes of the piercing mechanism 37 and the gear ring 4 are located on a vertical plane, so that the piercing mechanism 37 and the gear ring 4 are in an initial state, and the displacement of the piercing mechanism 37 is controlled accurately, so that the piercing mechanism 37 and the position of a embryo mouth can be matched accurately, the piercing mechanism 37 comprises a lifting assembly fixed on an L-shaped rod 18, the axes of the lifting assembly and the gear ring 4 are collinear, a piercing assembly is fixedly arranged at the output end of the lifting assembly, and the lifting assembly can drive the piercing assembly to move to match embryos with different diameters.

Referring to fig. 5 and 7, the lifting assembly includes a rotating motor 39 fixedly connected to the L-shaped rod 18, a rectangular block 19 is fixed at an output end of the rotating motor 39, a fourth link 21 is rotatably connected to left and right ends of the rectangular block 19 through a pin shaft, a fifth link 22 is rotatably connected to an upper end of the fourth link 21 through a pin shaft, a lifting block 23 is rotatably connected to an upper end of the fifth link 22 through a pin shaft, a first motor 20 is fixedly connected to a left side of a front end surface of the rectangular block 19, an output end of the first motor 20 is fixedly connected to the fourth link 21 through a pin shaft, and a guide rod 38 slidably assembled with the L-shaped rod 18 is fixed at a bottom of the lifting block 23.

The specific structure of the collineation is that the output axial line of the rotating motor 39 coincides with the axial line of the gear ring 4, so that after the clamping mechanisms 36 are utilized to move outwards and tension the embryo, the distance between the outer sides of the two groups of clamping mechanisms 36 is the inner diameter of the embryo, so that the position of the embryo opening can be calculated, the controller can automatically control the rising displacement of the lifting assembly according to the radius of the embryo to ensure that the puncture bubble assembly just corresponds to the position of the opening, the purpose of collineation of the lifting assembly and the gear ring 4 is to control the overhanging amount of the lifting assembly by utilizing the radius, the overhanging amount of the lifting assembly is the same when the embryo rotates to any position, the puncture bubble assembly and the position of the opening can be promoted to correspond to each other, the corresponding accuracy is improved, and if the lifting assembly and the gear ring 4 are not coaxial axial lines, the overhanging amount of the lifting assembly is different when the embryo rotates each position, so that the operation difficulty is high and the puncture accuracy is low for the device.

When the device is used, the controller starts the first motor 20 to start, drives the fourth connecting rod 21 and the fifth connecting rod 22 to rotate, so that the included angle between the fourth connecting rod 21 and the fifth connecting rod 22 is changed, and the lifting block 23 and the L-shaped rod 18 can be guaranteed to be offset-proof due to the fact that the guide rod 38 at the bottom of the lifting block 23 can drive the lifting block 23 to lift when the angle between the fourth connecting rod 21 and the fifth connecting rod 22 is changed, so that the puncture assembly can be lifted to a proper height, the puncture assembly is aligned with bubbles at the position of a embryo opening, and meanwhile, the controller controls the rotating motor 39 to work to drive the puncture mechanism 37 to rotate, so that the deflection of the angle is realized, and the puncture of bubbles at other positions of the embryo is facilitated.

Referring to fig. 5 and 7, the puncture assembly includes a first groove plate 24 fixedly mounted on an upper end surface of a lifting block 23, the left and right ends of the first groove plate 24 are respectively connected with a T-shaped block 27 through grooves in a sliding manner, puncture needles 28 are fixedly connected to the end surfaces of the left and right T-shaped blocks 27, which are far away from each other, a spring 26 is fixedly connected to the lower side of the end surface of the T-shaped block 27, which is close to each other, one end of the spring 26, which is far away from the T-shaped block 27, is fixedly connected with the first groove plate 24, a second motor 30 is fixedly connected to the middle part of the upper end surface of the first groove plate 24, and an output end of the second motor 30 is fixedly connected with a cam 25 through a pin shaft.

When the puncture mechanism is used, the puncture mechanism 37 is positioned at the inner side of a tire blank, the second motor 30 is started to drive the cam 25 to rotate according to the width of the tire blank, the cam 25 continuously extrudes the T-shaped blocks 27 at the front side and the rear side, the T-shaped blocks slide on the first groove plate 24 and recover under the action of the spring 26, the puncture needle 28 can puncture bubbles, meanwhile, the third motor 32 can be started to drive the fixed disc 3 to rotate, the tire blank can be rotated, the puncture position can be adjusted, and therefore a flexible adjusting effect can be achieved on the puncture position, the puncture angle is enlarged, puncture dead angles are eliminated, and the integral puncture efficiency is improved.

Second embodiment

In the process of using the first embodiment, it is found that, due to the different diameters of the embryo, the positions of the sub-openings of the embryo are different, and the width dimensions of the embryo are also different, so that the puncture mechanism 37 cannot be adjusted in real time according to the specific diameters and width dimensions of the embryo in actual use to ensure the corresponding accuracy of the puncture mechanism 37 and the positions of the sub-openings, which easily causes the bias of the puncture mechanism 37, and thus the puncture of all bubbles cannot be realized, based on this, we propose the following improvement scheme:

the radius size of the embryo is measured by utilizing the distance of outwards moving the clamping mechanisms 36, so that the centering limit installation of the embryo is realized through the clamping mechanisms 36, the inner diameter size of the embryo can be measured, the distance between the outer sides of the two groups of clamping mechanisms 36 is the inner diameter of the embryo, the controller can automatically control the ascending displacement of the lifting assembly to ensure that the puncture needle 28 on the T-shaped block 27 exactly corresponds to the position of the child opening, then the controller controls the puncture needle assembly to start to act, the controller can adjust the moving amount of the puncture mechanism 37 in real time according to the sectional width of the embryo, the controller can conveniently control the moving amount of the puncture mechanism 37 to adapt the child opening width of the embryo, when the width of the embryo is large, the controller controls the second motor 30 in the puncture needle assembly to rotate to a corresponding angle, so that the corresponding moving distance of the puncture needle 28 on the T-shaped block 27 is enabled to be matched with the position of the child opening, and the puncture needle 28 can be adjusted to the length of the child opening according to the moving distance.

It should be noted that, after the diameter and width of the embryo are measured by the clamping mechanism 36, the controller controls the lifting assembly and the puncture assembly to move by corresponding distances respectively to adapt the diameter and width of the embryo, so as to ensure that the puncture needle 28 in the puncture assembly corresponds to the position of the sub-opening, however, since the position of the sub-opening in the embryo is an inward arc surface, the puncture assembly cannot adapt to the puncture distance change caused by the arc surface, therefore, when the lifting assembly is lifted to the position of the sub-opening, the puncture assembly starts to puncture the air bubble outside the sub-opening, since the existence of the clamping mechanism 36 affects the circumferential puncture operation of the puncture mechanism 37, the puncture operation angle of the puncture mechanism 37 is controlled to be the angle between the two groups of clamping mechanisms 36, so that motion interference is prevented from being generated, and therefore, when the controller controls the rotating motor 39 to work, the puncture mechanism 37 can be driven to rotate, so that the puncture of the air bubble at the sub-opening can be realized by the puncture assembly, and the controller controls the rotating angle of the second motor 30, so that the puncture length of the puncture needle 28 can be controlled to puncture the air bubble inside the sub-opening:

the controller controls the rotating motor 39 to work, then drives the puncturing mechanism 37 to perform puncturing operation between two adjacent groups of clamping mechanisms 36, and the angle between the two groups of clamping mechanisms 36 is recorded as the working interval of the puncturing mechanism 37, when the rotating motor 39 rotates to a limit angle, the controller controls the lifting assembly to extend for a certain length (set according to the spacing of bubbles), at the moment, the puncturing assembly can be driven to move towards the inner side of a embryo, and the controller controls the second motor 30 to increase the rotating angle, so that the puncturing operation of the bubbles on the inner side of the sub-opening can be realized until the puncturing operation of the bubbles on the outer side and the inner side of the sub-opening is completed, the puncturing operation of the outer side and the inner side of the sub-opening can be realized by the controller controlling the second motor 30 to increase the corresponding rotating angle after the lifting assembly drives the puncturing assembly to extend for a certain length.

It should be noted that, in the process that the controller controls the second motor 30 to increase the rotation angle, when the puncture needle 28 is driven by the second motor 30 to complete the puncture process, after the puncture needle 28 punctures the air bubble, the output power of the second motor 30 will increase, and the puncture needle 28 will not move any more, so that the increase of the output power of the second motor 30 can be used as a control signal for completing the puncture operation of the puncture needle 28, then the puncture signal is fed back to the controller, the controller can use the rotation angle of the second motor 30 as a reference, and under the condition that the overhanging amount of the lifting assembly is fixed, in the process that the rotation motor 39 drives the puncture mechanism 37 to rotate, the puncture needle 28 on the puncture assembly can be driven by the overhanging amount as a reference, so as to realize the puncture operation on the air bubble inside the sub-mouth, namely the controller lifts the assembly to a section of length, when the output power of the second motor 30 increases to the threshold, the controller drives the puncture mechanism 37 to realize the rotation of the predetermined angle, so that the puncture assembly is driven by the controller inside the rotation motor 39, and the puncture operation on the embryo is convenient to realize the sequential puncture operation on the embryo.

It is worth noting that, in the process that the controller drives the lifting assembly to move upwards, the rotation angle of the second motor 30 is also synchronously increased, and the lifting assembly drives the upwards moving distance of the puncture assembly and the rotation angle increasing amount of the second motor 30 to be corresponding, so that the puncture assembly is ensured to be in contact with the inner side wall of the embryo after the puncture of the air bubble is completed, at this time, the puncture 28 is resistant due to puncture resistance of the inner side wall of the embryo, the increase of the resistance can reach the threshold value of the output power of the second motor 30, so as to ensure that the puncture assembly can puncture the air bubble on the inner side of the sub-opening, however, when the second motor 30 drives the puncture 28 to act at a specific rotation angle, the second motor 30 still does not reach the threshold value of the output power of the second motor 30, at this time, the distance between the inner side walls of the embryo to the puncture assembly is larger than the puncture amount of the puncture 28 which can be driven by the second motor 30 at this angle, at this time, the puncture amount of the puncture 28 is normal and the puncture amount of the embryo should be the distance due to the puncture 28, if the puncture 28 is not reached by the puncture angle, the puncture mechanism can be carried out on the inner side of the embryo, and the puncture opening of the embryo can be adjusted to the proper operation of the tyre according to the actual puncture amount of the outer side 37, and the puncture opening can be carried out according to the inflation of the inflation opening, and the proper operation of the inflation quality can be carried out on the inner side of the tyre, and the inflation opening can be adjusted, and the proper to the inflation quality can be carried out.

Then the lifting assembly drives the puncture assembly to reset, and simultaneously, the motor 39 is rotated to drive the puncture mechanism 37 to rotate to a working interval of another puncture mechanism 37 to realize the puncture operation on the air bubble at the position of the embryo opening, the step is repeated and operated four times, the puncture operation on the air bubble at the position of the embryo opening can be realized, after the completion of the operation, the controller controls the reset of each assembly, as the limiting effect of the clamping mechanism 36 can cause the blocking of the part of the embryo by the clamping mechanism 36, the puncture mechanism 37 can not perform the puncture operation on the part blocked by the clamping mechanism 36, therefore, after the clamping mechanism 36 is reset (the clamping mechanism 36 loses the limiting effect on the embryo), the embryo is manually rotated by 45 degrees, then the puncture operation on the air bubble is continued, the part blocked by the original embryo can be performed with the air bubble puncture operation, after the air bubble puncture operation on the part is completed, the reset of each assembly can be completely realized, then the air bubble puncture operation on the embryo of the next group of embryo can be performed, and the diameter and width of the embryo can be adjusted to the radian of the embryo in a real-time.

The puncturing method of the radial tire surface bubble puncturing device comprises the following specific steps:

s1, sleeving a tire blank on a clamping mechanism 36, starting a driving assembly by a controller to drive the clamping mechanism 36 to move, and then realizing centering limit on the tire blank through four groups of clamping mechanisms 36, ensuring centering stability of the tire blank during installation, and measuring the radius size of the tire blank;

s2, the controller starts the clamping mechanism 36 to start working, the clamping mechanism 36 is utilized to clamp the front and back width of the centered embryo, and the measurement of the width of the embryo section is completed;

s3, the controller controls the displacement mechanism 35 to move to drive the puncturing mechanism 37 to move to a position corresponding to the clamping mechanism 36, and then controls the lifting assembly to act according to the radius size of the embryo to drive the puncturing assembly to move to the sub-opening position, so that the positioning accuracy is high;

s4, the controller controls the actuation of the puncture assembly, and determines the width of the sub-opening according to the end face width measured by the clamping mechanism 36, so as to control the puncture assembly to match the corresponding overhanging length according to the width dimension, and drive the puncture needle 28 to puncture the air bubble at the sub-opening position;

s5, the controller starts the driving assembly, the clamping mechanism 36 and the embryo can be driven to synchronously rotate through the fixed disc 3, the piercing position is adjusted, the piercing quality of the bubble piercing assembly to bubbles is guaranteed, after the piercing operation is finished, the controller sequentially controls the bubble piercing assembly, the lifting assembly, the displacement mechanism 35, the clamping mechanism 36 and the driving assembly to reset, and then the embryo is taken down.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A radial tire surface air bubble piercing device, characterized in that: the device comprises a supporting component, wherein a driving component is arranged on the supporting component, four groups of clamping mechanisms (36) which are arranged back to back are fixedly arranged at the output end of the driving component, a displacement mechanism (35) is fixedly arranged at the top of the supporting component, a puncturing mechanism (37) corresponding to the clamping mechanism (36) is fixedly arranged at the top end of the displacement mechanism (35), and the driving component, the clamping mechanism (36), the displacement mechanism (35) and the puncturing mechanism (37) are electrically connected with a controller;

the driving assembly comprises a third motor (32), the output end of the third motor (32) is fixedly connected with a fixed disc (3) through a pin shaft, the middle part around the fixed disc (3) is fixedly connected with an L-shaped block (14), the L-shaped block (14) is embedded in a rack (6) through a groove and is connected with the rack in a sliding manner, one end, close to the axis of the fixed disc (3), of the rack (6) is fixedly connected with a connecting rod (13), the periphery of the front end face of the fixed disc (3) is rotationally connected with a first gear (5) through a pin shaft, the first gear (5) is meshed with the rack (6), the front end face of the fixed disc (3) is rotationally connected with a gear ring (4) through a groove, and the gear ring (4) is meshed with the first gear (5) mutually;

the clamping mechanism (36) comprises a bearing seat (7) fixed on a connecting rod (13), clamping blocks (9) are slidably connected to the middle parts of the front end and the rear end of the bearing seat (7) through grooves, one end, far away from the bearing seat (7), of each clamping block (9) is rotatably connected with a second connecting rod (10) through a pin shaft, one end, far away from the clamping blocks (9), of each second connecting rod (10) is rotatably connected with a third connecting rod (11) through a pin shaft, the middle parts of the third connecting rods (11) are rotatably connected to the bearing seat (7) through pin shafts, a group of clamping blocks (9) are in threaded connection with threaded rods (12), and the front ends of the threaded rods (12) are fixedly connected with small-sized servo motors;

a toothed ring meshed with the second gear (15) is arranged on the outer side wall of the gear ring (4), the length of the toothed ring is 1/4 of the circumference of the gear ring (4), the intersection points of the extension lines of the four groups of racks (6) and the axis of the gear ring (4), and the clamps between the four groups of racks (6) are 90 degrees;

the axis of the puncturing mechanism (37) and the axis of the gear ring (4) are positioned on a vertical plane, the puncturing mechanism (37) comprises a lifting assembly fixed on an L-shaped rod (18), the axis of the lifting assembly and the axis of the gear ring (4) are collinear, and the output end of the lifting assembly is fixedly provided with a puncturing assembly;

the lifting assembly comprises a rotating motor (39) fixedly connected to an L-shaped rod (18), a rectangular block (19) is fixed at the output end of the rotating motor (39), a fourth connecting rod (21) is rotatably connected to the left end and the right end of the rectangular block (19) through a pin shaft, a fifth connecting rod (22) is rotatably connected to the upper end of the fourth connecting rod (21) through a pin shaft, a lifting block (23) is rotatably connected to the upper end of the fifth connecting rod (22) through a pin shaft, a first motor (20) is fixedly connected to the left side of the front end surface of the rectangular block (19), the output end of the first motor (20) is fixedly connected with the fourth connecting rod (21) through a pin shaft, and a guide rod (38) which is slidably assembled with the L-shaped rod (18) is fixedly arranged at the bottom of the lifting block (23);

the thorn bubble subassembly includes first recess board (24) of fixed mounting at lifter block (23) up end, both ends all are connected with T type piece (27) through recess sliding connection about first recess board (24), left and right sides all fixedly connected with thorn needle (28) on the terminal surface that T type piece (27) kept away from each other, terminal surface downside fixedly connected with spring (26) that T type piece (27) are close to each other, the one end that T type piece (27) was kept away from to spring (26) is fixed continuous with first recess board (24), first recess board (24) up end middle part fixedly connected with second motor (30), second motor (30) output is through round pin axle fixedly connected with cam (25).

2. A radial tire surface air bubble puncturing device as in claim 1, wherein: the support assembly comprises a bottom plate (1), a support plate (2) is fixedly connected to the middle part of the rear side of the upper end face of the bottom plate (1), the upper end of the support plate (2) is rotationally connected with a fixed disc (3) through a pin shaft, a third motor (32) is fixed on the support plate (2), a dovetail block is integrally formed at the end part of an L-shaped block (14), and a dovetail groove which is assembled with the dovetail block in a sliding mode is formed in a rack (6).

3. A radial tire surface air bubble puncturing device as in claim 1, wherein: the driving assembly further comprises a fixed block (17) fixed on the right side of the upper end of the fixed disc (3), a second gear (15) and a worm wheel (16) are rotatably connected to the upper end of the fixed block (17) through a pin shaft, the second gear (15) is meshed and assembled on the outer surface of the gear ring (4), a worm (29) is rotatably connected to the upper end of the rear end face of the fixed disc (3), the worm (29) is meshed with the worm wheel (16), and a driving motor is fixedly connected to the end portion of the worm (29).

4. A radial tire surface air bubble puncturing device as in claim 1, wherein: the displacement mechanism (35) comprises a fourth motor (33), the main body of the fourth motor (33) is fixedly connected with the bottom plate (1), the output end of the fourth motor (33) is fixedly connected with a sixth connecting rod (34) through a pin shaft, the rear end of the sixth connecting rod (34) is rotationally connected with the bottom plate (1) through a pin shaft, the front end of the sixth connecting rod (34) is rotationally connected with a first connecting rod (8) through a pin shaft, the front end of the first connecting rod (8) is rotationally connected with an L-shaped rod (18) through a pin shaft, the top of the bottom plate (1) is fixedly provided with a second groove plate (31), and the lower end of the L-shaped rod (18) is slidingly assembled on the second groove plate (31).

5. A radial tire surface air bubble puncturing device as in claim 1, wherein: the outer surface of the bearing seat (7) is arc-shaped, the clamping blocks (9) are rectangular clamping plates, two groups of clamping blocks (9) are symmetrically and slidably assembled on the outer side of the bearing seat (7), and sliding grooves for the clamping blocks (9) to slide are formed in the bearing seat (7).

6. A method of puncturing a radial tire surface air bladder puncturing device, the method being achieved by a radial tire surface air bladder puncturing device as set forth in claim 1, comprising the steps of:

s1, sleeving a tire blank on a clamping mechanism (36), then starting a driving assembly by a controller to drive the clamping mechanism (36) to move, and then realizing centering limit on the tire blank through four groups of clamping mechanisms (36), ensuring centering stability of the tire blank during installation, and measuring the radius size of the tire blank;

s2, starting a clamping mechanism (36) by the controller to work, clamping the front and back width of the centered embryo by using the clamping mechanism (36) and measuring the width of the embryo section;

s3, the controller controls the displacement mechanism (35) to move to drive the puncturing mechanism (37) to move to a position corresponding to the clamping mechanism (36), and then controls the lifting assembly to act according to the radius size of the embryo to drive the puncturing assembly to move to the sub-opening position, so that the positioning accuracy is high;

s4, the controller controls the movement of the puncture assembly, and determines the width of the sub-opening according to the end face width measured by the clamping mechanism (36), so that the puncture assembly is controlled to be matched with the corresponding overhanging length according to the width size, and the puncture needle (28) is driven to puncture bubbles at the position of the sub-opening;

s5, the controller starts the driving assembly, the clamping mechanism (36) and the embryo can be driven to synchronously rotate through the fixed disc (3), the puncturing position is adjusted, the puncturing quality of the puncturing assembly on bubbles is guaranteed, after the puncturing operation is finished, the controller sequentially controls the puncturing assembly, the lifting assembly, the displacement mechanism (35), the clamping mechanism (36) and the driving assembly to reset, and then the embryo is taken down.