CN214026725U

CN214026725U - Semi-steel full-automatic tire shearing machine

Info

Publication number: CN214026725U
Application number: CN202022399273.1U
Authority: CN
Inventors: 管亚峰; 汤国荣
Original assignee: JIANGSU YIER ELECTROMECHANICAL CO Ltd
Current assignee: JIANGSU YIER ELECTROMECHANICAL CO Ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-08-24
Anticipated expiration: 2030-10-26

Abstract

The utility model relates to a semi-steel full-automatic tire shearing machine, which comprises a tire feeding mechanism, a driving mechanism and a host, wherein the tire feeding mechanism is arranged on one side of the head part of the driving mechanism and is used for conveying a tire to a tire clamping and conveying mechanism of the driving mechanism; the driving mechanism is used for clamping the tire and driving the tire to rotate so as to convey the tire to a tire repairing position of the main machine; the main machine is used for performing tread and sidewall roughening on the tire. The utility model discloses an automatic shearing machine realizes improving the tire quality to quick, the automatic pruning of tire tread rubber hair, reduces the cost of labor, improves the automation level of mill, gains the profit for the enterprise.

Description

Semi-steel full-automatic tire shearing machine

Technical Field

The utility model relates to a full-automatic tire shearing machine of semisteel belongs to automobile tire and makes technical field.

Background

Currently, in most of the existing tire factories, the chads of semi-steel tires are trimmed by a manual or automatic shearing machine. The manual trimming has high labor cost, the residual height of rubber burrs after the tire is trimmed is uneven, and the tire is damaged or even scrapped due to the shaking of hands frequently during the manual trimming.

Automatic shearing machine on the existing market will let tire speed from zero acceleration to repair child speed before repairing the child, repair the child and finish having an individual child action of playing, cause repair child efficiency to descend like this, current automatic shearing machine is not repaired to the excessive glue of side wall in addition.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the defect that prior art exists, provide a full-automatic tire shearing machine of semisteel, realize quick, the automatic pruning to tire tread rubber hair to improve the tire quality, reduce the cost of labor, improve the automation level of mill, win the profit for the enterprise.

In order to achieve the above purpose, the utility model provides a full-automatic tire shearing machine of semisteel, its characterized in that: the tire feeding mechanism is arranged on one side of the head of the driving mechanism and is used for conveying tires to a tire clamping and conveying mechanism of the driving mechanism; the driving mechanism is used for clamping the tire and driving the tire to rotate so as to convey the tire to a tire repairing position of the main machine; the main machine is used for performing tread and sidewall roughening on the tire.

The utility model discloses further technical scheme who optimizes as follows:

preferably, the tire feeding mechanism comprises a tire feeding mechanism rack, and a tire blocking door, a tire clamping mechanism, a left righting mechanism and a right righting mechanism which are arranged on the tire feeding mechanism rack, wherein the tire clamping mechanism is arranged in the tire feeding mechanism rack and is used for clamping a tire entering the tire feeding mechanism rack; the tire blocking door is arranged on the outlet side of the tire feeding mechanism rack, can slide up and down along the outlet of the tire feeding mechanism rack and is used for temporarily blocking the tire in the tire feeding mechanism rack; the left righting mechanism and the right righting mechanism are symmetrically arranged on the outer side of the outlet of the tire feeding mechanism rack and are used for righting the tire coming out of the tire feeding mechanism rack in a left-right symmetrical mode to enable the tire to enter the driving mechanism in a proper posture.

Preferably, guide rails are respectively arranged on two sides of the tire feeding mechanism rack, the tire stopping door is mounted on the guide rails and can slide up and down along the guide rails, and the tire stopping door is connected with a tire stopping door driving cylinder positioned on the upper part of the tire feeding mechanism; the tire clamping mechanism comprises a tire clamping plate and a group of tire clamping shafts, the tire clamping shafts are movably connected with the tire clamping plate or the frame of the tire feeding mechanism, the two tire clamping shafts are connected through tire clamping arms, and one of the tire clamping shafts is connected with a tire clamping mechanism cylinder through a push arm; the left centering mechanism comprises a support and a left centering mechanism cylinder arranged on the support, a piston rod of the left centering mechanism cylinder is connected with the push plate through a cylinder connector, and a left tire baffle is arranged on the outer side of the push plate; the right righting mechanism comprises a right righting mechanism cylinder and a right tire baffle, the right tire baffle is movably connected with the tire feeding mechanism frame, and the right righting mechanism cylinder is connected with the right tire baffle to drive the right tire baffle to swing up and down.

Preferably, the driving mechanism comprises a first roller, a second roller and a tire clamping and conveying mechanism, the first roller and the second roller are both driven by a first motor, small rollers driven by a second motor are respectively arranged on the first roller and the second roller, a centering mechanism for positioning the tire rotating at a high speed at the tire repairing position is arranged between the first roller and the second roller, and the tire clamping and conveying mechanism can move relative to the first roller and the second roller and is used for clamping and conveying the tire along the first roller and the second roller.

Preferably, the centering mechanism comprises a centering driving cylinder, and a piston rod of the centering driving cylinder is respectively connected with the left conical roller and the right conical roller through a force arm; the small roller is sleeved at the end part of the first roller or the second roller, and the first roller and the second roller are respectively arranged on the driving mechanism rack; the driving mechanism rack is provided with a driving mechanism linear guide rail extending along the length direction of the driving mechanism rack, the tire clamping and conveying mechanism is connected with a tire conveying driving cylinder, and the tire conveying driving cylinder drives the tire clamping and conveying mechanism to move on the driving mechanism linear guide rail; pinch child mechanism includes pinch child mechanism mount pad and installs left pinch roll, right pinch roll, guide rail, clamp child actuating cylinder and the right child subassembly of keeping off on pinch child mechanism mount pad, left pinch roll keeps off child arm sliding connection in the guide rail through a left side, right pinch roll keeps off child subassembly sliding connection in the guide rail through the right side, left pinch roll, right pinch roll link to each other with pressing from both sides child actuating cylinder respectively.

Preferably, keep off child subassembly including sliding seat, swing arm, fender child drive cylinder and fender child axle, the sliding seat sets up on the guide rail and can follow the guide rail and remove the swing arm of top four corners difference swing joint of sliding seat, swing arm swing joint keeps off the child axle, keep off the child axle and be connected with right pinch roll, the swing arm is swinging back and forth under the drive that keeps off the child drive cylinder.

Preferably, the host computer includes elevating system, well sword mechanism, side sword mechanism, pinch roller mechanism and pinch roller subassembly, well sword mechanism, side sword mechanism, pinch roller mechanism all install on elevating system and well sword mechanism, side sword mechanism are followed its up-and-down motion by the elevating system drive, the pinch roller mechanism is used for fixing a position the tire that is in repairing the child position, and be equipped with the pinch roller subassembly on the pinch roller mechanism, the pinch roller subassembly is including the last sword subassembly that is used for tire top tread to repair the hair, well sword mechanism is used for repairing the hair to tire side tread, side sword mechanism is used for tire side wall to repair the hair.

Preferably, elevating system includes main frame, lift seat, lift ball screw passes through the shaft coupling and is connected with elevating system servo motor, the lift seat cover can follow lift ball screw and remove on the lift ball screw, the last crane of installing of lift seat.

In the structure, the main frame is provided with a lifting mechanism linear guide rail, the lifting ball screw is parallel to the lifting mechanism linear guide rail and is arranged on one side of the main frame, one side of the lifting seat is connected with a screw nut sleeved on the lifting ball screw, and the opposite side of the lifting seat is connected with a sliding block arranged on the lifting mechanism linear guide rail.

Preferably, well sword mechanism includes well sword base, well sword ball, be equipped with well sword mechanism linear guide on the well sword base, well sword ball is on a parallel with well sword mechanism linear guide and movable mounting on well sword base, well sword ball's screw-nut and well sword screw connecting block and locate the slider on the well sword mechanism linear guide and be connected, well sword screw connecting block is connected with well sword cantilever arm's top has arranged the cylinder, the cylinder is connected with well sword subassembly through first ball spline.

In the mechanism, the cylinder is positioned above the middle cutter extending arm, the head of the cylinder is connected with the first ball spline, the head of the first ball spline is connected with the middle cutter assembly, the first ball spline is connected with the swing cylinder through the movable plate, and the swing cylinder is arranged on the fixed plate positioned at the head of the middle cutter extending arm.

Preferably, the side tool mechanism comprises a side tool base and a side tool ball screw, a side tool mechanism linear guide rail is arranged on the side tool base, the side tool ball screw is parallel to the side tool mechanism linear guide rail and movably mounted on the side tool base, a screw nut of the side tool ball screw is connected with a side tool screw connecting block and a sliding block arranged on the side tool mechanism linear guide rail, the side tool screw connecting block is connected with the side tool guide rail seat through a rigid side tool extending arm, and movable side tool components are respectively arranged at two ends of the side tool guide rail seat.

In the structure, the side cutter screw rod connecting block is connected with the rigid side cutter extending arm, the head of the side cutter extending arm is connected with the side cutter guide rail seat, side cutter cylinders are respectively arranged at two ends of the side cutter guide rail seat, the side cutter cylinders are connected with a transition plate which is arranged on the side cutter guide rail seat and provided with side cutter guide rails and can slide, and the transition plate is connected with the side cutter assembly through a cutter bar.

Preferably, the pressing wheel mechanism comprises a pressing wheel mechanism ball screw, a screw nut of the pressing wheel mechanism ball screw is connected with a fixed seat, the fixed seat is connected with a lifting arm, and the lifting arm is provided with a pressing wheel assembly. The pinch roller subassembly includes the pinch roller mount, the lower extreme of pinch roller mount is equipped with the compression roller, and the upper end is equipped with ball screw, ball screw's screw-nut connection removes the seat, be equipped with second ball spline on removing the seat, the head and the last knife tackle spare of second ball spline are connected, and the afterbody is connected with pinch roller subassembly cylinder.

Preferably, the middle knife assembly, the side knife assembly and the upper knife assembly comprise an outer knife box and an inner knife box, a knife is arranged on the inner knife box, an adjusting screw rod is arranged between the outer knife box and the inner knife box, and a lower end shaft hole of the adjusting screw rod can be matched with a pin shaft arranged on the inner knife box.

In the structure, the adjusting screw rod adjusts the installation angle of the inner knife box by adjusting the height of the inner knife box. The adjusting screw rod sequentially penetrates through the inner cutter box and the outer cutter box from bottom to top, the nut is fixed at a proper position of the upper end part of the adjusting screw rod according to the angle of the inner cutter box, and then the pin shaft fixed on the inner cutter box is inserted into the lower end hole of the adjusting screw rod, so that the inner cutter box is installed on the outer cutter box at a certain angle.

The utility model adopts the unique double-drive roller and the tire clamping and conveying mechanism to realize the faster entering and exiting of the tire to the shearing machine, and saves the time for accelerating and kicking the tire; by adopting the design of a multi-cutter box and the servo precision positioning, the shearing machine can not only repair the rubber wool on the tread of the tire, but also trim the rubber wool overflowing from the sidewall, thereby improving the quality of the tire; the cleaning device has a unique knife box cleaning system design, the upper knife is provided with a special dust absorption pipeline for collecting rubber wool, the middle knife is cleaned by compressed air, and the side knives are cleaned by compressed air and a scraper plate simultaneously; the single cantilever structure arrangement can be adopted to make the space in front of the shearing machine free, so that maintenance personnel can conveniently maintain the equipment. In a word, the utility model discloses an automatic shearing machine realizes quick, the automatic pruning to tire tread rubber hair, improves the tire quality, reduces the cost of labor, improves the automation level of mill, gains the profit for the enterprise.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic structural view of the tire feeding mechanism of the present invention; FIG. 3 is a front view of the tire feeding mechanism of the present invention; FIG. 4 is a front view of the tire clamping mechanism of the present invention; fig. 5 is a side view of the tire clamping mechanism of the present invention; FIG. 6 is a schematic view of the tire clamping mechanism according to the present invention; fig. 7 is a schematic structural view of the left centering mechanism of the present invention; fig. 8 is a top view of the left centering mechanism of the present invention; fig. 9 is a front view of the right centering mechanism of the present invention; fig. 10 is a schematic structural view of the right centering mechanism of the present invention; fig. 11 is a top view of the driving mechanism of the present invention; fig. 12 is a schematic structural view of a driving mechanism according to the present invention; fig. 13 is a front view of the centering mechanism of the present invention; fig. 14 is a top view of the centering mechanism of the present invention; fig. 15 is a front view of the tire clamping and feeding mechanism of the present invention; fig. 16 is a side view of the tire clamping and conveying mechanism of the present invention; fig. 17 is a top view of the tire clamping and feeding mechanism of the present invention; FIG. 18 is a front view of the right tire stop assembly of the present invention; FIG. 19 is a side view of the right tire stop assembly of the present invention; fig. 20 is a schematic structural view of the main frame of the present invention; fig. 21 is a left side view of the main frame of the present invention; fig. 22 is a front view of the main body of the present invention; fig. 23 is a front view of the lifting mechanism of the present invention; fig. 24 is a side view of the lifting mechanism of the present invention; fig. 25 is a top view of the lifting mechanism of the present invention; fig. 26 is a front view of the middle knife mechanism of the present invention; fig. 27 is a top view of the middle knife mechanism of the present invention;

fig. 28 is a side view of the mounting base of the middle knife mechanism of the present invention; fig. 29 is a top view of the middle blade mechanism of the present invention; fig. 30 is a front view of the middle blade mechanism of the present invention; fig. 31 is a side view of the middle blade mechanism of the present invention; FIG. 32 is a front view of the pinch roller mechanism of the present invention; fig. 33 is a side view of the medium pressure roller mechanism of the present invention; fig. 34 is a top view of the medium pressure roller mechanism of the present invention; fig. 35 is a front view of the middle pressure wheel assembly of the present invention; fig. 36 is a top view of a pinch roller assembly of the present invention; fig. 37 is a side view of the middle pressure wheel assembly of the present invention; FIG. 38 is a front view of the middle magazine assembly of the present invention;

FIG. 39 is a side view of the middle magazine assembly of the present invention; fig. 40 is a schematic view of the operation of the middle upper knife, the middle knife and the side knife of the present invention.

Detailed Description

Example one

As shown in figure 1, the semi-steel full-automatic tire shearing machine comprises a tire feeding mechanism 1, a driving mechanism 2 and a main machine 3, wherein the main machine 3 and the driving mechanism 2 are installed on a base which is provided with a spigot for positioning and is in the same horizontal position, a pressing wheel mechanism 304 on the main machine 3 is ensured to be parallel to a driving clamping roller of the driving mechanism 2 during installation, the front central plane and the rear central plane of the pressing wheel mechanism and the driving clamping roller are superposed, and the tire repairing position is superposed. The tire feeding mechanism 1 is arranged on the head side of the driving mechanism 2, and is used for conveying a tire to the tire clamping and conveying mechanism 206 of the driving mechanism 2; the driving mechanism 2 is used for clamping the tire and driving the tire to rotate so as to convey the tire to a tire repairing position of the main machine 3; the main machine 3 is used for trimming the tire tread and the tire side.

As shown in fig. 2 and 3, the tire feeding mechanism 1 includes a tire feeding mechanism frame 101, and a tire blocking door 102, a tire clamping mechanism 103, a left righting mechanism 104 and a right righting mechanism 105 which are arranged on the tire feeding mechanism frame 101, wherein the tire clamping mechanism 103 is arranged in the tire feeding mechanism frame 101 and is used for clamping a tire entering the tire feeding mechanism frame 101; the tire stopping door 102 is arranged at the outlet side of the tire feeding mechanism rack 101, can slide up and down along the outlet of the tire feeding mechanism rack 101, and is used for temporarily stopping the tire inside the tire feeding mechanism rack 101; the left righting mechanism 104 and the right righting mechanism 105 are symmetrically arranged outside the outlet of the tire feeding mechanism frame 101, and are used for rightly and leftwards symmetrically righting the tire coming out of the tire feeding mechanism frame 101 to enter the driving mechanism 2 at a proper posture. In addition, guide rails are respectively arranged on two sides of the tire feeding mechanism frame 101, the tire blocking door 102 is mounted on the guide rails through bearings and can slide up and down along the guide rails, and the tire blocking door 102 is connected with a tire blocking door driving cylinder positioned on the upper part of the tire feeding mechanism 1 through a floating joint. As shown in fig. 4 to 6, the tire clamping mechanism 103 includes a first tire clamping arm 1031, a tire clamping plate frame 1032, a second tire clamping shaft 1033, a second tire clamping arm 1034, a first tire clamping shaft 1035, a third tire clamping shaft 1036, a tire clamping plate 1037, a fourth tire clamping shaft 1038, a shaft sleeve 1039, a push arm 10310, a tire clamping mechanism cylinder 10311, and a bearing 10312, the tire clamping plate frame 1032 is disposed on the periphery of the tire clamping plate 1037, the first tire clamping shaft 1035 and the third tire clamping shaft 1036 are respectively and movably connected with the tire clamping plate 1037 through the bearing 10312 and the shaft sleeve 1039, the second tire clamping shaft 1033 and the fourth tire clamping shaft 1038 are respectively and movably connected with the tire advancing mechanism frame 101 through the bearing 10315 and the shaft sleeve 1039, so that the tire clamping mechanism 103 forms a quadrilateral structure, the first tire clamping arm 1031 is connected between the first tire clamping shaft 1035 and the fourth tire clamping shaft 1038, the second tire clamping shaft 1036 is connected with the second tire clamping shaft 1033, the lower end of the second tire clamping shaft 1031034 is connected with the second tire clamping arm 1033, the push arm 10310 is connected with a piston rod of a tire clamping mechanism cylinder 10311, and the tire clamping mechanism cylinder 10311 acts to realize the forward and backward movement of the tire clamping plate 1037, so that the tire clamping action is realized. As shown in fig. 7 and 8, the left centering mechanism 104 includes a support 1041 installed at an outlet of the tire feeding mechanism frame 101 and a left centering mechanism cylinder 1047 disposed on the support 1041, a protective cover 1044 is disposed on the support 1041, a piston rod of the left centering mechanism cylinder 1047 is connected to the push plate 1042 through a cylinder connector 1043, a left tire blocking plate 1046 is disposed on an outer side of the push plate 1042, the left centering mechanism cylinder 1047 is controlled by a 5-port 3-bit electromagnetic valve, a distance that the left tire blocking plate 1046 is pushed out can be controlled according to widths of different tires, one side of the left tire blocking plate 1046 has a radian, which facilitates tire feeding, and the push plate 1042 is further connected with a linear guide shaft 1045 disposed in parallel to the cylinder. As shown in fig. 9 and 10, the right centering mechanism 105 includes a right centering mechanism cylinder 1051, a bearing seat 1052 and a right tire stopping plate 1053, the bearing is mounted on the bearing seat 1052, and the right tire stopping plate 1053 is movably connected to the tire feeding mechanism frame 101 through the bearing, so that the right tire stopping plate 1053 is mounted on the tire feeding mechanism frame 1 through the bearing to form a rotation point, and the right centering mechanism cylinder 1051 mounted on the tire feeding mechanism frame 1 is connected to the right tire stopping plate 1053 to drive the right tire stopping plate 1053 to swing up and down.

As shown in fig. 11 and 12, the driving mechanism 2 includes a frame 201, a first drum 202, a second drum 203, a small drum 204, a centering mechanism 205, a pinch tire-feeding mechanism 206, a tensioning mechanism 207, a second motor 208, a first motor 209, and a tire-feeding driving cylinder 210. The first roller 202 and the second roller 203 are arranged in parallel and are driven to rotate by a first motor 209, small rollers 204 driven to rotate by a second motor 208 are sleeved at the tire inlet ends of the first roller 202 and the second roller 203, the small rollers 204 are movably connected with the first roller 202 or the second roller 203 through bearings and snap springs, and the small rollers 204 and the first roller 202 and the second roller 203 do not interfere with each other and collide with each other when rotating. One end of the first roller 202 is connected with the head of the frame 1 through a bearing, the other end is connected with the tail of the frame 201 through a bearing, one end of the second roller 203 is connected with the head of the frame 1 through a bearing, and the other end is directly connected with the tail of the frame 201 through a bearing. The first roller 202 is in a step shape, the diameter of a first step is the same as that of the second roller 203, the diameter of a second step is smaller than that of the second roller 203 at the tire discharging position, and a height difference is formed between the first step and the second step, so that the tire can be directly discharged under the driving of the second roller 203 at the tire discharging position, and the tire kicking action is avoided. The first roller 202 and the second roller 203 are both driven by a first motor 209, the small roller 204 is driven by a second motor 208, the first motor 209 and the second motor 208 are respectively tensioned by a tensioning mechanism 207 and are respectively controlled by a frequency converter, so that the rotation speed can be adjusted, and further, the differential operation of the small roller 204, the first roller 202 and the second roller 203 is realized. The first roller 202 and the small roller 204, and the second roller 203 and the small roller 204 constitute a structure for driving the tire to rotate. The tire gripping and conveying mechanism 206 is used for gripping the tire and can move relative to the rollers, the centering mechanism 205 is used for positioning the tire rotating at a high speed at the tire repairing position, and the centering mechanism 205 is arranged between the first roller 202 and the second roller 203. As shown in fig. 13 and 14, the centering mechanism 205 includes two left and right centering driving cylinders 2059 with opposite piston operation directions, piston rods of the left and right centering driving cylinders 2059 are respectively connected with a long-axis gear 2058 and a short-axis gear 2057 through driving arms 2052, the long-axis gear 2058 and the short-axis gear 2057 are respectively installed in bearing seats 2056 through bearings, the bearing seats 2056 are arranged on a centering mechanism installation seat 2051, the short-axis gear 2057 is connected with a left conical roller 2055 through a force arm 2053, the long-axis gear 2058 is connected with a right conical roller 2054 through a force arm 2053, the left conical roller 2055 and the right conical roller 2054 are respectively connected with a drum shaft, a bearing and a conical sleeve, the conical sleeve is connected with the drum shaft through a bearing, and the drum shaft is arranged at an end of the force arm 2053. The middle parts of the short shaft gear 2057 and the long shaft gear 2058 are respectively provided with a gear, the two gears in the middle part are meshed with each other, one end of each of the short shaft gear 2057 and the long shaft gear 2058 is connected with the force arm 2053 through a key groove, and the other end of each of the short shaft gear 2057 and the long shaft gear 2058 is connected with the driving arm 2052 through a key groove. The centering mechanism mounting seat 2051 is mounted on the frame 201 through a bolt, the left centering driving cylinder 2059 and the right centering driving cylinder 2059 respectively drive the short shaft gear 2057 and the long shaft gear 2058 to rotate through the driving arms 2052, so as to drive the two force arms 2053 connected with the short shaft gear 2057 and the long shaft gear 2058 to swing, and the two force arms 2053 are respectively connected with the left conical roll 2055 and the right conical roll 2054, so that the action that the left conical roll and the right conical roll are simultaneously held towards the middle can be realized. Two driving mechanism linear guide rails extending along the length direction of the rack 201 are arranged on the rack 201, the tire clamping and conveying mechanism 206 is connected with a tire conveying driving cylinder 210, and the tire conveying driving cylinder 210 can drive the tire clamping and conveying mechanism 206 to move on the driving mechanism linear guide rails. As shown in fig. 15 to 17, the tire gripping and conveying mechanism 206 includes a tire gripping and conveying mechanism mounting seat, and a left clamping roller 2068, a right clamping roller 2069, an upper guide rail 20612, a lower guide rail 20613, a gear rack assembly, a left clamping tire driving cylinder 20611, a right clamping tire driving cylinder 20610, a left tire stopping arm 2064 and a right tire stopping assembly 2067 mounted in the tire gripping and conveying mechanism mounting seat, and the tire gripping and conveying driving cylinder 210 is connected to the tire gripping and conveying mechanism mounting seat to drive the whole tire gripping and conveying mechanism to move left and right along the linear guide rail of the driving mechanism on the rack 1. The left and right tire clamping driving cylinders, the upper guide rail and the lower guide rail are arranged on a pushing tire block 2061 of the tire clamping and conveying mechanism mounting seat, the left clamping roller 2068 is mounted on a left tire blocking arm 2064, the left tire blocking arm 2064 is connected to a sliding block of the upper guide rail 2062, the right clamping roller 2069 is mounted on a right tire blocking assembly 2067, the right tire blocking assembly 2067 is connected to a sliding block of the lower guide rail 20613, the left clamping roller 2068 is connected with a piston rod of the right tire clamping driving cylinder 20610 through a gear rack assembly, and the right clamping roller 2069 is connected with a piston rod of the left tire clamping driving cylinder 20611 through the gear rack assembly. The piston motion directions of the left tire clamping driving cylinder and the right tire clamping driving cylinder are opposite, the gear rack assembly comprises a gear seat 2065, a gear 2066, an upper gear rack 2062 and a lower gear rack 2063, the gear 2066 is installed on the gear seat 2065, the gear 2066 is respectively meshed with the upper gear rack and the lower gear rack which are positioned on the two sides of the gear seat, the upper gear rack 2062 is connected with the piston rod of the right tire clamping driving cylinder 20610 through an ear seat and slides along an upper guide rail 20612 under the driving of the right tire clamping driving cylinder 20610, the upper gear rack 2062 is fixedly connected with the left tire blocking arm 2064, the lower gear rack 2063 is connected with the piston rod of the left tire clamping driving cylinder 20611 through an ear seat and slides along a lower guide rail 20613 under the driving of the left tire clamping driving cylinder 20611, and the lower gear rack 2063 is fixedly connected with the right tire blocking assembly 2067. As shown in fig. 18 and 19, the right tire blocking assembly 2067 includes a sliding seat 20671, a swing arm 20672, a pin 20674, a bearing, a tire blocking driving cylinder 20675 and a tire blocking shaft 20673, the sliding seat 20671 is disposed on the lower guide rail 20613 and can move along the lower guide rail 20613, four corners of the top end of the sliding seat 20671 are respectively movably connected with a swing arm 20672, an upper tire blocking shaft 20673 and a lower tire blocking shaft 20673 are movably connected between the four swing arms 20672, the tire blocking shaft 20673 is connected with the right pinch roll 9, the swing arm 20672 is driven by the tire blocking driving cylinder 20675 to swing back and forth, and the tire blocking driving cylinder 20675 operates to realize the back and forth extension of the tire blocking shaft 20673 during operation. The lower end of the swing arm 20672 is hinged with the sliding seat 20671 through a bearing and a pin shaft 20674, the upper end of the swing arm 20672 is hinged with the tire blocking shaft 20673 through a bearing and a pin shaft 20674, the swing arm 20672, the pin shaft 20674, the tire blocking shaft 20673 and the upper end of the sliding seat 20671 form a movable parallelogram structure, and after the previous tire is sent to the tire outlet position, the parallelogram structure is driven by the unidirectional tire blocking driving cylinder 20675 to swing backwards to enable the position of opening the repaired tire to return to the tire inlet position. Further, a tire pushing stopper roller 20676 for pushing the tire to the tire-ejecting position is provided on the outer side of the right tire stopper member 2067.

In operation, the first roller 202 and the second roller 203 are at the tire repair rotation speed (i.e. 1000rpm), and the small roller 204 is at the tire splicing rotation speed (i.e. 650 rpm). The tire directly enters the small drum 204 from the tire feeding frame, the left and right clamping rollers of the tire clamping and conveying mechanism simultaneously clamp towards the middle under the action of the tire clamping driving cylinder and the gear rack assembly to realize tire centering, and meanwhile, the small drum 204 accelerates to 1000rpm to enable the small drum to have the same speed as the first drum 202 and the second drum 203. Then the tire gripping and conveying mechanism 206 is smoothly conveyed to the center position of the centering mechanism 205 by the tire conveying driving cylinder 210. The centering mechanism 205 quickly grips the tire so that the tire can stably rotate at high speed at the tire repair position. Meanwhile, the tire pushing stop roller on the right side of the tire pinch mechanism 206 directly pushes the tire in the original tire repair position to the tire removal position.

As shown in fig. 20 to 22, the main machine 3 includes an elevating mechanism 301, a middle cutter mechanism 302, a side cutter mechanism 303, a pinch roller mechanism 304 and a pinch roller assembly 305, the middle cutter mechanism 302, the side cutter mechanism 303 and the pinch roller mechanism 304 are all mounted on the elevating mechanism 301, the middle cutter mechanism 302 and the side cutter mechanism 303 are driven by the elevating mechanism 301 to move up and down, the pinch roller mechanism 304 is used for positioning the tire at the tire repairing position, the pinch roller assembly 305 is arranged on the pinch roller mechanism 304, the pinch roller assembly 305 includes an upper cutter assembly 30514 for repairing the top tread of the tire, the middle cutter mechanism 302 is used for repairing the side tread of the tire, and the side cutter mechanism 303 is used for repairing the sidewall of the tire.

As shown in fig. 23 to 25, the lifting mechanism 301 includes a main frame 3011, a lifting base 3014, a lifting frame 3015, a lifting ball screw 3016, and a lifting mechanism linear guide 30115, two lifting mechanism linear guides 30115 arranged in parallel are disposed on the main frame 3011, the lifting ball screw 3016 is parallel to the lifting mechanism linear guide 30115 and is installed on one side of the main frame 3011, the upper end of the lifting ball screw 3016 is fixedly connected to an upper support 3012 disposed on the upper portion of the main frame 3011 through a first bearing 30111 and a bearing cover 3013, and the lower end is fixedly connected to a lower support 3018 disposed on the lower portion of the main frame 3011 through a second bearing 30112 and a bearing seat 3017. One side of the lifting seat 3014 is connected to a screw nut sleeved on the lifting ball screw 3016, the opposite side is connected to a slider arranged on the lifting mechanism linear guide 30115, a lifting frame 3015 is installed on the lifting seat 3014, the lifting frame 3015 is connected to a first balancing weight 30110 through a first steel wire rope 30114 bypassing the phase-change pulley block 3019, the lower end of the lifting ball screw 3016 is connected to a lifting mechanism servo motor 30113 through a coupler, the lifting mechanism servo motor 30113 drives the lifting ball screw 3016 to rotate when working, and then drives the lifting seat 3014 to move up and down along the lifting mechanism linear guide 30115, so that the lifting frame 3015 moves up and down.

As shown in fig. 26 to 28, the middle knife mechanism 302 is obliquely arranged on the lifting frame 3015, and includes a middle knife base 3021 arranged on the lifting frame 3015, two middle knife mechanism linear guide rails 3024 arranged in parallel are arranged on the middle knife base 3021, and a middle knife ball screw 3022 is parallel to the middle knife mechanism linear guide rails 3024, movably mounted on the middle knife base 3021 through a bearing seat, and located inside the two middle knife mechanism linear guide rails 3024. One end of the middle knife ball screw 3022 is connected to a middle knife servo motor 3028 through a coupling, a screw nut thereof is connected to a middle knife screw connecting block 3029 and a slider provided on a middle knife linear guide rail 3024, and the middle knife screw connecting block 3029 is connected to a middle knife extension arm 30210. A sensing plate 3025 is arranged on the side surface of the middle knife screw connecting block 3029, a proximity switch 3027 is arranged on the middle knife base 3021 and positioned outside the middle knife mechanism linear guide 3024, and the proximity switch 3027 is arranged on the middle knife base 3021 through a switch bracket 3023. The head of the middle knife extension arm 30210 is provided with a fixed plate 30215, the fixed plate 30215 is provided with a long guide hole, an air cylinder 30211 is arranged above the middle knife extension arm 30210 in a hanging manner, the head of the air cylinder 30211 is connected with a first ball spline 30213, a nut of the first ball spline 30213 is arranged on the movable plate 30212, the shaft of the first ball spline 30213 passes through the long guide hole of the fixed plate 30215 and is connected with the head of the first ball spline 30213, and the tail of the swing air cylinder 30214 is arranged on the fixed plate 30215 and is connected with the head of the swing air cylinder 30212 and the movable plate 30212. The tail of the cylinder 30211 is connected to a connecting rod 3026, the connecting rod 306 passes through a long guide hole of the fixed plate 30215 and is connected to the moving plate 30212, and the connecting rod 3026 can swing left and right in the long guide hole. A linear guide is provided below the translational plate 30212, and a slider is provided on the linear guide so as to be movable leftward and rightward along the linear guide, and the translational plate 30212 is mounted on the slider so that the translational plate 30212 can reciprocate on the linear guide. The swing cylinder 30214 is actuated to swing the shift plate 30212 from side to move the middle knife assembly 30216 from side to side. When the middle knife mechanism servo motor 3028 operates, the middle knife mechanism ball screw 3022 is driven to rotate so as to drive the middle knife screw connecting block 3029 to move back and forth, at this time, the middle knife extension arm 30211 moves back and forth along with the middle knife mechanism ball screw, and at this time, the air cylinder 30211 plays a role in buffering. Compressed air is supplied by the air circuit to clean the knife box of the middle knife assembly 30216 after shaving is finished.

As shown in fig. 29 to 31, the side cutter mechanism 303 is horizontally disposed on the lifting frame 3015, and includes a side cutter base 3031 disposed on the lifting frame 3015, two side cutter mechanism linear guide rails 3034 arranged in parallel are disposed on the side cutter base 3031, and a side cutter ball screw 3032 is parallel to the side cutter mechanism linear guide rails 3034, is movably mounted on the side cutter base 3031 through a bearing seat, and is located inside the two side cutter mechanism linear guide rails 3034. One end of the side cutter ball screw 3032 is connected with a side cutter mechanism servo motor 3037 through a coupler, a screw nut of the side cutter ball screw is connected with a side cutter screw connecting block 3038 and a slide block arranged on a side cutter mechanism linear guide rail 3034, and the side cutter screw connecting block 3038 is connected with a rigid side cutter extending arm 3039. The side knife lead screw connecting block 3038 is provided with a sensing plate 3035 at one side, a proximity switch 30310 is arranged on the side knife base 3031 and positioned outside the side knife mechanism linear guide rail 3034, and the proximity switch 30310 is arranged on the side knife base 3031 through a switch bracket 3033. The head of the side knife extension arm 3039 is connected with a side knife guide rail seat 30311, two side knife guide rails 30312 which are arranged in parallel are arranged on the side knife guide rail seat 30311, a left slide block and a right slide block which are arranged on the side knife guide rail 30312 are respectively and fixedly connected with a transition plate 30313, the transition plate 30313 is connected with the head of a side knife air cylinder 30314, the tail of the side knife air cylinder 30314 is arranged on the side knife guide rail seat 30311, and the transition plate 30313 is connected with a side knife assembly 3036 through a knife rod. Thus, when the servo motor 3037 of the side cutter mechanism acts, the ball screw 3032 of the side cutter mechanism is driven to rotate so as to drive the screw connecting block 3038 of the side cutter mechanism to move back and forth, at the moment, the side cutter extending arm 3039 moves back and forth along with the side cutter extending arm 3039 to reach the tire glue overflow position, the side cutter cylinder 30314 drives the side cutter assembly 3036 to fold inwards to start to attach the tire tread glue overflow, and after the glue overflow of the glue scraping cylinder is finished, the glue overflow in the cutter box is removed to prevent blockage.

As shown in fig. 32 to 34, the pinch roller mechanism 304 is disposed on the top of the main frame 3011, and includes an upright column 3041, a pinch roller mechanism ball screw 3042, a counterweight 3043, a fixing base 3044, a lifting arm 3045, and a pinch roller mechanism servo motor 3046, wherein the upright column 3041 is provided with pinch roller mechanism linear guide rails 30413 arranged in parallel, and the pinch roller mechanism ball screw 3042 is parallel to the pinch roller mechanism linear guide rails 30413, movably mounted on the upright column 3041 through a bearing seat, and located inside the two pinch roller mechanism linear guide rails 30413. One end of a ball screw 3042 of the pinch roller mechanism is connected to a pinch roller mechanism reducer 30415 and a servo motor 3046 through a coupler, a screw nut of the ball screw is connected to a fixing seat 3044, the fixing seat 3044 is connected to a slider on a pinch roller mechanism linear guide 30413, the fixing seat 3044 is further connected to a lifting arm 3045, and the fixing seat 3044 drives the lifting arm 3045 to move along the pinch roller mechanism linear guide 30413 under the driving of the ball screw 3042 of the pinch roller mechanism. A weight block 3043 is provided in the column 3041, a switch support 3048 and an induction plate 3047 are provided on the weight block 3043, and a switch support 30410 and a proximity switch 3049 are provided on the column 3041. The counterweight 3043 is connected to the lifting arm 3045 by a second wire rope 30412 that passes around the roller wheel assembly 30411. During operation, the pressing wheel mechanism servo motor 3046 drives the pressing wheel mechanism ball screw 3042 to rotate, so as to drive the fixing base 3044 to move up and down along the pressing wheel mechanism linear guide 30413, and further to move the lifting arm 3045 up and down along with the fixing base. A pinch roller assembly 305 is mounted on the lift arm 3045.

As shown in fig. 35 to 37, the pinch roller assembly 305 includes a pinch roller fixing frame 3051 and a pinch roller 3052, a left connecting plate 3054 and a right connecting plate 3053 are arranged on the lower end face of the pinch roller fixing frame 3051, two pinch roller shafts 3055 are arranged between the left connecting plate 3054 and the right connecting plate 3053, the pinch roller 3052 is mounted on the pinch roller shafts 3055 through a bearing, and at least one of the pinch roller shafts 3055 is connected with a variable frequency motor 3056 through a coupling. Pinch roller mount 3051's up end is equipped with two parallel arrangement's pinch roller subassembly linear guide 3057, it installs levogyration ball screw 3058 and dextrorotation ball screw 3059 to be on a parallel with pinch roller subassembly linear guide 3057, levogyration ball screw 3058 and dextrorotation ball screw 3059 pass through shaft coupling 30510 and connect, wherein pinch roller subassembly servo motor 30511 is connected to dextrorotation ball screw 3059's one end, levogyration ball screw 3058, dextrorotation ball screw 3059's screw-nut is connected one respectively and is removed seat 30512, remove seat 30512 and locate the slider connection on pinch roller subassembly linear guide 3057. Second ball spline 30513 is installed through the hole cooperation and is removed seat 30512, and the head and the last sword subassembly 30514 of second ball spline 30513 are connected, and the afterbody is connected with pinch roller assembly cylinder 30515, and pinch roller assembly cylinder 30515 is installed on removing seat 30512 through the support. During operation, inverter motor 3056 drive pinch roller 3052 rotates, and pinch roller subassembly cylinder 30515 action drives second ball spline 30513 and stretches out simultaneously for last sword subassembly 30514 moves down and repaiies the child to the tire tread. The pinch roller assembly servo motor 30511 drives the left-handed and right-handed ball screw to rotate so as to drive the moving seat 30512 to move left and right, and at the moment, the upper cutter assembly 30514 is driven by the second ball spline 30513 to move left and right on the tire tread to trim hair. After finishing trimming, the rubber bristles are collected by a dust absorption pipeline in a unified way.

As shown in fig. 38 and 39, each of the middle cutter assembly 30216, the side cutter assembly 3036 and the upper cutter assembly 30514 includes an outer cutter casing 4 and an inner cutter casing 5, the outer cutter casing 4 is movably connected to a large rotating shaft 9 disposed in a rotating shaft seat through a deflecting joint, and the rotating shaft seat is mounted on a first ball spline 30213 of the middle cutter mechanism 302 and a second ball spline 30513 of the cutter bar or the pressure wheel assembly 305 of the side cutter mechanism 303. The inner knife box 5 is provided with a knife 6, an adjusting screw 7 is arranged between the outer knife box 4 and the inner knife box 5, the lower end shaft hole of the adjusting screw 7 can be matched with a pin shaft 8 arranged on the inner knife box 5, a small rotating shaft 10 is further arranged between the inner knife box 5 and the outer knife box 4, and one end of the small rotating shaft 10 is fixed on the outer knife box 4. Before the inner cutter box 5 and the outer cutter box 4 are fixedly connected by the adjusting screw 7, the inner cutter box 5 can rotate for a certain angle around the small rotating shaft 10, so that the inner cutter box 5 is pre-fixed on the outer cutter box 4 at a proper angle, and then the angle of the inner cutter box 5 is further adjusted by the adjusting screw 7, so that the inner cutter box 5 and the outer cutter box 4 reach the required angle, and finally the cutter adapts to the tire tread. In addition, a compressed air joint connected with a compressed air source is connected to the inner knife box 5 of the middle knife assembly 30216, so that compressed air is introduced to clean the knife box after hair trimming; the inner knife box 5 of the upper knife assembly 30514 is connected with a dust collecting joint connected with a dust collecting pipeline and used for collecting rubber hair in the knife box; the side tool assembly 3036 is also connected with a compressed air joint connected with a compressed air source on the inner tool box 5, and also comprises a glue scraping cylinder and a steering cylinder, wherein a glue scraping plate is arranged on a cylinder rod of the glue scraping cylinder and used for removing glue overflowing in the inner tool box 5 after hair trimming to prevent blockage, and the steering cylinder is used for driving the whole side tool assembly 3036 to rotate by a certain angle.

When the full-automatic shearing machine works, firstly, bar codes are scanned on tires, so that the shearing machine obtains information of the tires, the tire blocking door 102 on the tire feeding rack 101 is put down, the tire clamping mechanism 103 on the left side clamps the tires after entering the tire feeding mechanism 1, meanwhile, the left centering mechanism 104 pushes the left tire blocking plate 1046 to a proper position according to the size of the tires, and the tire blocking door 102 is opened. The tire enters the driving mechanism 2 and rotates on the small roller 204, the rotating speed of the small roller 204 is increased to 1000rpm, the pinch rollers at the two sides of the tire pinch-off mechanism 206 clamp the tire to be centered, and meanwhile, the baffle of the right centering mechanism rotates to the upper side to release the tire. After the previous tire is repaired, the centering mechanism 205 is opened, the tire clamping and conveying mechanism 206 conveys the tire to the position of the centering mechanism 205 under the action of the air cylinder, meanwhile, the previous tire is conveyed to the tire outlet, and the tire automatically runs to the tire outlet conveying line to enter the next process. The centering mechanism 205 snaps into place and the right tire block assembly 2067 is retracted. The lifting frame 3015 is driven by the servo motor to rise from the original point position to the horizontal center position of the tire, the variable frequency motor drives the pressing roller 3052 to rotate, the pressing wheel mechanism 304 is rapidly descended from the original point under the action of the servo motor, the pressing roller 3052 is enabled to lightly press the tire, and the tire stably rotates at the tire repairing position at the moment. The upper cutter assembly 30514 sags to the tangent position of the tire tread under the action of the cylinder, the servo motor rotates, and the two upper cutters repair rubber burrs on the tire tread under the driving of the left-handed and right-handed ball screw. The middle knife mechanism 302 is driven by a servo motor to extend, and the air cylinder acts to enable the middle knife assembly 30216 to reach the tangent position of the tire. The side cutter mechanism 303 drives the side cutter assembly 3036 to reach the tire glue overflow position under the driving of the servo motor, the side cutter assembly 3036 is attached to the tire side under the action of the air cylinder, and the side cutter rotates around the rotating shaft along with the change of the tread radian. Thus, the upper knife, the middle knife and the side knife act simultaneously to start tire repair. And repeating the operation on the next tire after the tire repair is finished.

In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The utility model provides a full-automatic tire shearing machine of semisteel which characterized in that: the tire feeding mechanism comprises a tire feeding mechanism (1), a driving mechanism (2) and a host (3), wherein the tire feeding mechanism (1) is arranged on one side of the head part of the driving mechanism (2) and is used for conveying a tire to a tire clamping and conveying mechanism (206) of the driving mechanism (2); the driving mechanism (2) is used for clamping the tire and driving the tire to rotate so as to convey the tire to a tire repairing position of the main machine (3); the main machine (3) is used for performing tread and sidewall roughening on the tire.

2. The semi-steel full-automatic tire shearing machine according to claim 1, characterized in that: the tire feeding mechanism (1) comprises a tire feeding mechanism rack (101), and a tire blocking door (102), a tire clamping mechanism (103), a left righting mechanism (104) and a right righting mechanism (105) which are arranged on the tire feeding mechanism rack (101), wherein the tire clamping mechanism (103) is arranged in the tire feeding mechanism rack (101) and is used for clamping a tire entering the tire feeding mechanism rack (101); the tire blocking door (102) is arranged on the outlet side of the tire feeding mechanism rack (101), can slide up and down along the outlet of the tire feeding mechanism rack (101), and is used for temporarily blocking a tire in the tire feeding mechanism rack (101); the left righting mechanism (104) and the right righting mechanism (105) are symmetrically arranged at the outer side of an outlet of the tire feeding mechanism rack (101) and are used for righting the tire coming out of the tire feeding mechanism rack (101) in a left-right symmetrical mode so as to enable the tire to enter the driving mechanism (2) in a proper posture.

3. The semi-steel full-automatic tire shearing machine according to claim 2, characterized in that: guide rails are respectively arranged on two sides of the tire feeding mechanism rack (101), the tire stopping door (102) is installed on the guide rails and can slide up and down along the guide rails, and the tire stopping door (102) is connected with a tire stopping door driving cylinder positioned on the upper part of the tire feeding mechanism (1); the tire clamping mechanism (103) comprises a tire clamping plate (1037) and a group of tire clamping shafts, the tire clamping shafts are movably connected with the tire clamping plate (1037) or the tire feeding mechanism rack (101), the two tire clamping shafts are connected through tire clamping arms, and one of the tire clamping shafts is connected with a tire clamping mechanism cylinder (10314) through a push arm (10310); the left centering mechanism (104) comprises a support (1041) and a left centering mechanism cylinder (1047) arranged on the support (1041), a piston rod of the left centering mechanism cylinder (1047) is connected with the push plate (1042) through a cylinder connector (1043), and a left tire blocking plate (1046) is arranged on the outer side of the push plate (1042); the right righting mechanism (105) comprises a right righting mechanism cylinder (1051) and a right tire baffle (1053), the right tire baffle (1053) is movably connected with the tire feeding mechanism frame (101), and the right righting mechanism cylinder (1051) is connected with the right tire baffle (1053) to drive the right tire baffle (1053) to swing up and down.

4. The semi-steel full-automatic tire shearing machine according to claim 1, characterized in that: the driving mechanism (2) comprises a first roller (202), a second roller (203) and a tire clamping and conveying mechanism (206), the first roller (202) and the second roller (203) are driven by a first motor (209), small rollers (204) driven by a second motor (208) are respectively arranged on the first roller (202) and the second roller (203), a centering mechanism (205) for positioning tires rotating at high speed at a tire repairing position is arranged between the first roller (202) and the second roller (203), and the tire clamping and conveying mechanism (206) can move relative to the first roller (202) and the second roller (203) and is used for clamping and conveying the tires along the first roller (202) and the second roller (203).

5. The semi-steel full-automatic tire shearing machine according to claim 4, characterized in that: the centering mechanism (205) comprises a centering driving cylinder (2059), and a piston rod of the centering driving cylinder (2059) is respectively connected with the left conical roller (2055) and the right conical roller (2054) through a force arm (2053); the small roller (204) is sleeved at the end part of the first roller (202) or the second roller (203), and the first roller (202) and the second roller (203) are respectively arranged on the driving mechanism rack (201); the pinch tire conveying mechanism (206) is connected with a tire conveying driving cylinder (210), and the tire conveying driving cylinder (210) drives the pinch tire conveying mechanism (206) to move; pinch child mechanism (206) including pinch child mechanism mount pad and install left double-layered roller (2068), right double-layered roller (2069), the guide rail on pinch child mechanism mount pad, press from both sides child actuating cylinder and keep off child subassembly (2067) right, left side double-layered roller (2068) keep off child arm (2064) sliding connection in guide rail through a left side, right side double-layered roller (2069) keep off child subassembly (2067) sliding connection in guide rail through a right side, left side double-layered roller (2068), right double-layered roller (2069) link to each other with pressing from both sides child actuating cylinder respectively.

6. The semi-steel full-automatic tire shearing machine according to claim 5, characterized in that: right side fender child subassembly (2067) include sliding seat (20671), swing arm (20672), keep off child driving cylinder (20675) and keep off child axle (20673), sliding seat (20671) set up on the guide rail and can follow the guide rail and remove the top four corners of sliding seat (20671) swing arm (20672) of swing joint respectively, swing arm (20672) swing joint has fender child axle (20673), keep off child axle (20673) and right clamp roller (2069) and be connected, swing arm (20672) is kept off the drive of child driving cylinder (20675) and is swung back and forth under the drive.

7. The semi-steel full-automatic tire shearing machine according to claim 1, characterized in that: the main machine (3) comprises an elevating mechanism (301), a middle cutter mechanism (302), a side cutter mechanism (303), a pinch roller mechanism (304) and a pinch roller assembly (305), wherein the middle cutter mechanism (302), the side cutter mechanism (303) and the pinch roller mechanism (304) are all installed on the elevating mechanism (301), the middle cutter mechanism (302) and the side cutter mechanism (303) are driven by the elevating mechanism (301) to move up and down, the pinch roller mechanism (304) is used for positioning a tire at a tire repairing position, the pinch roller assembly (305) is arranged on the pinch roller mechanism (304), the pinch roller assembly (305) comprises an upper cutter assembly used for repairing the top tire surface, the middle cutter mechanism (302) is used for repairing the side surface of the tire, and the side cutter mechanism (303) is used for repairing the tire.

8. The semi-steel full-automatic tire shearing machine according to claim 7, characterized in that: the lifting mechanism (301) comprises a lifting seat (3014) and a lifting ball screw (3016), the lifting ball screw (3016) is connected with a lifting mechanism servo motor (30113) through a coupler, the lifting seat (3014) is sleeved on the lifting ball screw (3016) and can move along the lifting ball screw (3016), and a lifting frame (3015) is installed on the lifting seat (3014); the middle knife mechanism (302) comprises a middle knife ball screw (3022), a screw nut of the middle knife ball screw (3022) is connected with a middle knife screw connecting block (3029), the middle knife screw connecting block (3029) is connected with a middle knife extending arm (30210), an air cylinder (30211) is arranged above the middle knife extending arm (30210), and the air cylinder (30211) is connected with a middle knife assembly (30216) through a first ball spline (30213); the side cutter mechanism (303) comprises a side cutter ball screw (3032), a screw nut of the side cutter ball screw (3032) is connected with a side cutter screw connecting block (3038), the side cutter screw connecting block (3038) is connected with a side cutter guide rail seat (30311) through a rigid side cutter extending arm (3039), and two ends of the side cutter guide rail seat (30311) are respectively provided with a movable side cutter assembly (3036); the pressing wheel mechanism (304) comprises a pressing wheel mechanism ball screw (3042), a screw nut of the pressing wheel mechanism ball screw (3042) is connected with a fixed seat (3044), the fixed seat (3044) is connected with a lifting arm (3045), and the lifting arm (3045) is provided with a pressing wheel assembly (305).

9. The semi-steel full-automatic tire shearing machine according to claim 8, characterized in that: pinch roller subassembly (305) are including pinch roller mount (3051), the lower extreme of pinch roller mount (3051) is equipped with compression roller (3052), and the upper end is equipped with ball screw, ball screw's screw-nut is connected and is removed seat (30512), be equipped with second ball spline (30513) on removing seat (30512), the head and the last knife tackle spare (30514) of second ball spline (30513) are connected, and the afterbody is connected with pinch roller subassembly cylinder (30515).

10. The semi-steel full-automatic tire shearing machine according to claim 9, characterized in that: well sword subassembly (30216), side sword subassembly (3036), last sword subassembly (30514) all include outer sword box (4) and interior sword box (5), be equipped with cutter (6) on interior sword box (5) be provided with adjusting screw (7) between outer sword box (4) and interior sword box (5), the lower extreme shaft hole of adjusting screw (7) can cooperate with round pin axle (8) that set up on interior sword box (5).