CN212219378U - Cover tire cutting machine - Google Patents

Abstract

The utility model relates to a tyre cutting machine, which comprises a frame, wherein one end of the frame is provided with a protective feeding component for feeding cord fabric, and a tyre feeding component for feeding the tyre is arranged at the position of the frame corresponding to the upper part of the protective feeding component; the punching assembly comprises a plurality of punching nails fixedly connected to the surface of the punching shaft, and all the punching nails of the same punching assembly are arranged around the punching shaft; the position of the machine frame corresponding to the punching shaft far away from one side of the protective feeding assembly is rotatably connected with a fitting mechanism for fitting the cord fabric and the cover tire, and the position of the machine frame corresponding to the fitting mechanism far away from one side of the punching shaft is provided with a cutting mechanism. The utility model discloses have and ensure the effect that the cover tire can not harm when accomplishing the curtain cloth process of punching.

Description

Cover tire cutting machine

Technical Field

The utility model belongs to the technical field of the technique of cover tire production facility and specifically relates to a cover tire guillootine is related to.

Background

At present, in the process of tire casing production, a layer of cord fabric needs to be covered inside an outer table according to the conventional process, and in order to prevent bubbles from being formed between a protective mould and a tire casing due to temperature change and tire casing use after cord fabric attachment from influencing the attachment quality, the protective mould needs to be punched with holes to discharge air when the tire casing is loaded.

The prior technical scheme can refer to a Chinese utility model patent with an authorization publication number of CN203875915U, and discloses an automatic tyre forming and tread cutting machine, which comprises a feeding mechanism, a tread conveying mechanism and a tread cutting mechanism, wherein the feeding mechanism comprises a buffer frame and a rolling grain tread transmission device arranged at the front end of the buffer frame and is used for outputting and shaping a mother rolling tread blank; the tread conveying mechanism comprises a conveying device and a displacement detection device and is used for conveying the shaped tread blank for a set distance and waiting for cutting; mechanism is decided to tread is including deciding device and tread separator for cut banding tread blank to set for length in order to treat the overmolding.

The above prior art solutions have the following drawbacks: when the conventional outer tire is cut and fed, the outer tire is firstly attached to the cord fabric and then the cord fabric is punched, so that the condition that a punching needle penetrates through the cord fabric and is pricked on the inner surface of the outer tire is inevitable when punching is performed, the inner surface of the outer tire is damaged due to the condition, and the service life and the strength of the outer tire are reduced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a can ensure the cover tire guillootine that the cover tire can not harm when accomplishing the curtain cloth process of punching.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a cover tire cutting machine comprises a rack, wherein one end of the rack is provided with a protective feeding assembly for feeding cord fabric, and a cover tire feeding assembly for feeding a cover tire is arranged at a position, corresponding to the upper part of the protective feeding assembly, of the rack; the punching assembly comprises a plurality of punching nails fixedly connected to the surface of the punching shaft, and all the punching nails of the same punching assembly are arranged around the punching shaft; the position of the machine frame corresponding to the punching shaft far away from one side of the protective feeding assembly is rotatably connected with a fitting mechanism for fitting the cord fabric and the cover tire, and the position of the machine frame corresponding to the fitting mechanism far away from one side of the punching shaft is provided with a cutting mechanism.

Through adopting above-mentioned technical scheme, when carrying out the laminating of cover tire rubber layer and curtain cloth, wind the axle of punching the hole earlier with curtain cloth from the top, the practicality nail that punches is in the trompil of curtain cloth surface, and the operation of laminating is together carried out through laminating mechanism in the rubber layer of the curtain cloth that will open the hole and cover tire, alright avoid punching simultaneously and lead to punching the needle and prick the rubber layer and lead to the rubber layer damage.

The present invention may be further configured in a preferred embodiment as: the frame corresponds the extrusion axle that the position department sliding connection that punches the epaxial side has the width direction along the frame to set up, and the direction of height that the frame can be followed to the extrusion axle slides, can with the axle butt that punches when the extrusion axle glides downwards, and the position department that the extrusion axle corresponds every group subassembly that punches all sets up the groove of stepping down that encircles the setting of extrusion axle lateral wall, and the nail homoenergetic sliding connection that punches is in the groove of stepping down that corresponds.

Through adopting above-mentioned technical scheme, when punching, the extrusion axle that slides downwards lets the punching needle can slide in the groove of stepping down, alright with the stable use extrusion axle pressure of curtain cloth epaxial at punching to the efficiency that the guarantee was punched reduces the curtain cloth by punching needle jack-up and the probability that the punching needle can't pass the curtain cloth completely.

The present invention may be further configured in a preferred embodiment as: the frame corresponds the backup pad of the vertical setting of the equal fixedly connected with in position department at extrusion axle both ends, all set up the spout of vertical setting on the face that two backup pads are close to each other, equal sliding connection has the slider in the spout, the extrusion axle both ends rotate respectively to be connected on the slider that corresponds, the equal fixedly connected with extrusion spring of slider top surface, the equal fixedly connected with in position department that the backup pad is close to the spout of the equal fixed connection of one end that the slider was kept away from to the extrusion spring, when the extrusion spring all was in natural state, the extrusion axle with punch the axle butt.

Through adopting above-mentioned technical scheme, when using, the extrusion axle slides to the direction that is close to the axle of punching all the time under extrusion spring's drive to realize stable extrusion effect, when punching, according to the thickness of curtain cloth, the extrusion axle can be by curtain cloth jack-up, and extrusion spring atress this moment, alright guarantee extrusion axial is close to the direction of the axle of punching and has pressure, thereby with the stable pressure of curtain cloth the epaxial operation of punching.

The present invention may be further configured in a preferred embodiment as: the cover tire feeding assembly comprises two supports fixedly connected to two sides of one end of the frame, the tops of the two supports are detachably connected with a cover tire feeding shaft, the top surface of each support is provided with a top trough, and two ends of the cover tire feeding shaft are arranged in the feeding troughs respectively.

Through adopting above-mentioned technical scheme, when carrying out the material loading, with cover tyre rubber layer winding cover tyre material loading epaxial to place cover tyre material loading axle in the material loading groove, alright realize convenient rubber layer material loading, cover tyre material loading epaxial cover tyre rubber layer also can be convenient take off cover tyre material loading axle and carry out the replenishment on rubber layer after using up.

The present invention may be further configured in a preferred embodiment as: well upper and lower silo has all been seted up at the lateral wall middle part that the axis of punching was kept away from to two supports, and well upper and lower silo all runs through the support on the width direction of frame, and well upper and lower silo sets up to the direction downward sloping that is close to the axis of punching by the one end of keeping away from the axis of punching, and protection feed mechanism includes that both ends difference sliding connection is in the protection material loading axle of two in the upper and lower silos.

Through adopting above-mentioned technical scheme, when carrying out the material loading, twine the curtain cloth on the protection material loading axle, alright realize stable curtain cloth material loading process through the rotation of protection material loading axle in well material loading groove.

The present invention may be further configured in a preferred embodiment as: the laminating mechanism comprises a driving roller which is rotatably connected to the corresponding punching shaft of the frame and is far away from one side of the protective feeding assembly, the driving roller is arranged along the width direction of the frame, a driven roller which is parallel to the driving roller is rotatably connected to the position, close to the driving roller, of the frame, a feeding gap which is smaller than the sum of the thickness of the outer tire rubber layer and the thickness of the tire fabric is formed between the side wall of the driven roller and the side wall of the driving roller, a driving motor is fixedly connected to the position, corresponding to one end of the driving roller, of the frame, and the driving roller is.

By adopting the technical scheme, after the curtain cloth is punched, the curtain cloth and the outer tire rubber layer penetrate through the curtain cloth and the outer tire rubber layer and between the driving roller and the driven roller, the driving roller can be driven to rotate by starting the driving motor, and the driven roller and the driving roller can be driven to rotate oppositely after the curtain cloth and the outer tire rubber layer are inserted into the feeding gap because the height of the feeding gap is less than the sum of the thicknesses of the outer tire rubber layer and the curtain cloth, so that the curtain cloth and the outer tire rubber layer are squeezed and attached together.

The present invention may be further configured in a preferred embodiment as: the frame top surface corresponds laminating mechanism and cuts the position department between the mechanism and rotate and be connected with spacing axle, spacing axle sets up along the width direction of frame, the limiting plate of the equal vertical setting of fixedly connected with in position department that the frame corresponds spacing axle both ends, the spacing groove of vertical setting all has been seted up on the face that two limiting plates are close to each other, equal sliding connection has the stopper in the spacing groove, spacing axle both ends are rotated respectively and are connected on the stopper that corresponds, the equal fixedly connected with spacing spring of stopper top surface, the equal fixed connection of one end that the stopper was kept away from to spacing spring is in the position department that the limiting plate is close to the spacing groove, spacing axle lateral wall and frame top surface butt when spacing.

Through adopting above-mentioned technical scheme, the setting of spacing axle can be laminated the curtain cloth and the rubber layer that have laminated to the frame top surface on to convenient follow-up cutting operation to it, when using, spacing spring can let spacing axle have the trend of lapse all the time, thereby remains the effect of pressing the cover tire downwards all the time.

The present invention may be further configured in a preferred embodiment as: cutting mechanism includes that fixed connection corresponds spacing axle in frame top and keeps away from the roof beam that cuts of punching axle one side, cut the setting of roof beam level, be formed with the cutting space between cutting roof beam and the frame top surface, the thickness sum that highly is greater than curtain cloth and cover tire rubber layer in cutting space, and cut the roof beam and set up to the direction slope that is close to spacing axle by the one end of keeping away from spacing axle, sliding connection has the cutting knife on cutting the roof beam, the cutting edge of cutting knife dashes down to set up and the cutting edge of cutting knife sets up to the other end tilt up by the one end that is close to the frame top surface, the cutting knife can slide along the length direction who cuts.

Through adopting above-mentioned technical scheme, when needs cut, pass the cover tire from the cutting space, stop the cover tire in the position department that needs cut to the sliding cutting sword, alright cut the cover tire, accomplish the process of cutting.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the effect of ensuring that the outer tire is not damaged while the process of punching the cord fabric is finished can be realized through the separation of the punching process and the attaching process;

2. the cover tire is always stably clamped in the whole attaching and cutting process, and the running stability of the equipment is improved.

Drawings

FIG. 1 is an overall schematic view of the present embodiment;

FIG. 2 is a partial sectional view of a protruding perforated shaft structure in an embodiment;

FIG. 3 is a partial sectional view of a salient drive roller structure in an embodiment;

FIG. 4 is an enlarged view of portion A of FIG. 1;

fig. 5 is a partial sectional view of the protruding cutting mechanism in the embodiment.

In the figure, 1, a frame; 2. a protective feeding assembly; 21. feeding a material groove; 22. protecting the feeding shaft; 3. an outer tire feeding assembly; 31. a support; 32. jacking a material groove; 33. an outer tire feeding shaft; 4. punching a hole shaft; 41. a punching assembly; 411. punching nails; 42. extruding the shaft; 421. a yielding groove; 43. a support plate; 431. a chute; 432. a slider; 433. a compression spring; 5. a fitting mechanism; 51. a drive roll; 52. a driven roller; 53. a feed gap; 54. a drive motor; 6. a limiting shaft; 60. a limiting block; 61. a limiting plate; 62. a limiting groove; 63. a limiting spring; 7. a cutting mechanism; 71. cutting a beam; 72. cutting a gap; 73. a cutting knife; 74. a drive slot; 75. a drive block; 76. a threaded rod; 77. and (4) cutting the motor.

Detailed Description

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

Referring to fig. 1, for the utility model discloses a cover tire guillootine, including frame 1, 1 one end of frame is provided with the protection material loading subassembly 2 that is used for carrying out the curtain cloth material loading, and the position department that frame 1 corresponds 2 tops of protection material loading subassemblies is provided with the cover tire material loading subassembly 3 that is used for carrying out the cover tire material loading. When in use, the rubber layer and the cord fabric of the outer tire are respectively fed to the top surface of the frame 1 from the outer tire feeding assembly 3 and the protective feeding assembly 2, and the top surface of the frame 1 is cut and the like.

Referring to fig. 1 and 2, the position of the frame 1 corresponding to one side of the protective feeding assembly 2 is rotatably connected with a punching shaft 4, the punching shaft 4 is arranged along the width direction of the frame 1, and a plurality of groups of punching assemblies 41 are arranged on the outer surface of the punching shaft 4. All the punching assemblies 41 are arranged in an array along the length direction of the punching shaft 4, each punching assembly 41 comprises a plurality of punching nails 411 fixedly connected to the surface of the punching shaft 4, and all the punching nails 411 of the same punching assembly 41 are arranged around the punching shaft 4. Frame 1 corresponds the extrusion axle 42 that the position department sliding connection that punches 4 tops of axle has along the width direction setting of frame 1, and extrusion axle 42 can slide along the direction of height of frame 1, can with punch 4 butts when extrusion axle 42 glides downwards, and the position department that extrusion axle 42 corresponds every group subassembly 41 that punches all offers the groove 421 of stepping down that encircles the setting of extrusion axle 42 lateral wall, punches nail 411 homoenergetic sliding connection in the groove 421 of stepping down that corresponds. Correspond backup pad 43 of the vertical setting of the equal fixedly connected with in position department at extrusion axle 42 both ends, the spout 431 of vertical setting all has been seted up on the face that two backup pads 43 are close to each other, equal sliding connection has slider 432 in the spout 431, extrusion axle 42 both ends rotate respectively to be connected on the slider 432 that corresponds, the equal fixedly connected with extrusion spring 433 of slider 432 top surface, the equal fixed connection in position department that backup pad 43 is close to spout 431 of one end that slider 432 was kept away from to extrusion spring 433, when extrusion spring 433 all is in natural state, extrusion axle 42 and the axle 4 butt that punches. After feeding, the cord fabric is firstly penetrated between the punching shaft 4 and the extrusion shaft 42, the punching nail 411 on the punching shaft 4 punches holes on the cord fabric, and the extrusion shaft 42 can press the cord fabric to the direction close to the punching shaft 4, so that the punching efficiency is improved.

Referring to fig. 1 and 2, the cover tire feeding assembly 3 includes two supports 31 fixedly connected to two sides of one end of the frame 1, the tops of the two supports 31 are detachably connected to a cover tire feeding shaft 33, the top surfaces of the two supports 31 are provided with a top trough 32, and two ends of the cover tire feeding shaft 33 are respectively arranged in the top trough 32. Middle and upper silo 21 has all been seted up at the lateral wall middle part that two supports 31 kept away from perforation axle 4, and middle and upper silo 21 all runs through support 31 in the width direction of frame 1, and middle and upper silo 21 sets up to the direction downward sloping that is close to perforation axle 4 by the one end of keeping away from perforation axle 4, and protection material loading subassembly 2 includes that both ends difference sliding connection is in two protection material loading axles 22 in the material loading 21. During feeding, the cord fabric of the outer tire is wound on the protective feeding shaft 22, the rubber layer of the outer tire is wound on the outer tire feeding shaft 22, and the outer tire feeding shaft 33 and the protective feeding shaft 22 can be detached to conveniently change the material.

Referring to fig. 1 and 3, a position of the frame 1 corresponding to the side of the drilling shaft 4 far from the protective feeding assembly 2 is rotatably connected with a fitting mechanism 5, the fitting mechanism 5 includes a driving roller 51 rotatably connected to the frame 1 corresponding to the side of the drilling shaft 4 far from the protective feeding assembly 2, the driving roller 51 is arranged along the width direction of the frame 1, a position of the frame 1 close to the driving roller 51 is rotatably connected with a driven roller 52 parallel to the driving roller 51, a feeding gap 53 with a height smaller than the sum of the thickness of the outer tire rubber layer and the thickness of the curtain cloth is formed between the side wall of the driven roller 52 and the side wall of the driving roller 51, a position of the frame 1 corresponding to one end of the driving roller 51 is fixedly connected with a driving motor 54, and the driving roller 51 is fixedly connected to. After the curtain cloth is punched, the curtain cloth and the rubber layer are attached to each other and placed through the feeding gap 53, and the feeding gap 53 is small in height, so that after the driving motor 54 is started, the driving roller 51 and the driven roller 52 rotate oppositely to drive the outer tire to be extruded and attached through the driving roller 51 due to the friction force between the driving roller and the outer tire, and meanwhile, the curtain cloth and the rubber layer at the feeding end are pulled to advance, so that the automatic feeding punching and attaching effect is achieved.

Referring to fig. 4, 1 top surface of frame corresponds laminating mechanism 5 and cuts the position department rotation between the mechanism 7 and be connected with spacing axle 6, spacing axle 6 sets up along the width direction of frame 1, the limiting plate 61 of the equal vertical setting of fixedly connected with in position department at the spacing axle 6 both ends is corresponding to frame 1, the spacing groove 62 of vertical setting is all seted up on the face that two limiting plates 61 are close to each other, equal sliding connection has stopper 60 in the spacing groove 62, 6 both ends of spacing axle rotate respectively to be connected on the stopper 60 that corresponds, the equal fixedly connected with spacing spring 63 of stopper 60 top surface, the equal fixed connection in position department that limiting plate 61 is close to spacing groove 62 of one end that stopper 60 was kept away from to spacing spring 63, spacing spring 63 is out spacing axle 6 lateral wall and the 1 top surface butt of frame. When needing to cut, the cover tire of laminating passes from spacing 6 below axles, and at this moment, spacing 6 axles can push down the cover tire to keep all pasting in 1 surface of frame through the cover tire of spacing 6 axles, thereby the convenience is cut the cover tire and is operated.

Referring to fig. 5, a cutting mechanism 7 is disposed at a position of the frame 1 corresponding to a side of the applying mechanism 5 away from the punching shaft 4. Cutting mechanism 7 includes that fixed connection corresponds spacing axle 6 in frame 1 top and keeps away from beam 71 that cuts of perforating axle 4 one side, it sets up to cut beam 71 level, be formed with cutting space 72 between cutting beam and the frame 1 top surface, highly being greater than the sum of the thickness on curtain cloth and cover rubber layer of cutting space 72, and cut beam 71 by keeping away from the one end of spacing axle 6 to the direction slope setting that is close to spacing axle 6, sliding connection has cutting knife 73 on cutting beam 71, the cutting edge of cutting knife 73 dashes down and sets up and the cutting edge of cutting knife 73 is by the one end that is close to frame 1 top surface upwards slope setting to the other end, cutting knife 73 bottom and frame 1 top surface butt. Cutting and offering the drive groove 74 that sets up along the length direction who cuts roof beam 71 on the roof beam 71, sliding connection has drive block 75 in the drive groove 74, cuts the roof beam 71 and rotates near the position department of drive groove 74 and is connected with threaded rod 76, and drive block 75 threaded connection is on threaded rod 76, cuts the position department fixedly connected with of roof beam 71 corresponding to threaded rod 76 one end and cuts motor 77, and threaded rod 76 fixed connection is on cutting motor 77's output shaft. When cutting, the outer tire to be cut passes through the cutting gap 72, and the cutting motor 77 is started at the position to be cut to drive the cutting knife 73 to slide along the cutting beam 71, so that the outer tire can be cut.

The implementation principle of the embodiment is as follows: firstly, the protective feeding shaft 22 and the outer tire feeding shaft 33 are placed, the curtain fabric penetrates through the space between the extrusion shaft 42 and the punching shaft 4 and the rubber layer and the material conveying gap 53, the driving motor 54 is started, the outer tire can be driven to be attached and conveyed through the opposite rotation between the driving roller 51 and the driven roller 52, and meanwhile, the extrusion shaft 42 and the punching shaft 4 punch the curtain fabric; after the fitting is finished, the outer tire penetrates through the bottom of the limiting shaft 6, and the sliding cutting knife 73 is used for cutting the outer tire at the position needing to be cut through the cutting gap 72.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides an outer tire guillootine, includes frame (1), its characterized in that: a protective feeding assembly (2) for feeding the cord fabric is arranged at one end of the rack (1), and a cover tire feeding assembly (3) for feeding the cover tire is arranged at a position, corresponding to the upper part of the protective feeding assembly (2), of the rack (1);

the punching machine is characterized in that a punching shaft (4) is rotatably connected to a position, corresponding to one side of the protective feeding assembly (2), of the rack (1), the punching shaft (4) is arranged along the width direction of the rack (1), a plurality of groups of punching assemblies (41) are arranged on the outer surface of the punching shaft (4), all the punching assemblies (41) are arranged in an array mode along the length direction of the punching shaft (4), each punching assembly (41) comprises a plurality of punching nails (411) fixedly connected to the surface of the punching shaft (4), and all the punching nails (411) of the same punching assembly (41) are arranged around the punching shaft (4);

the frame (1) is connected with a fitting mechanism (5) for fitting the cord fabric and the cover tire in a rotating mode corresponding to the position, away from one side of the protective feeding assembly (2), of the punching shaft (4), and the frame (1) is provided with a cutting mechanism (7) corresponding to the position, away from one side of the punching shaft (4), of the fitting mechanism (5).

2. The tire casing cutting machine of claim 1, wherein: frame (1) corresponds position department sliding connection of punching axle (4) top has extrusion axle (42) that the width direction of following frame (1) set up, the direction of height of frame (1) can be followed in extrusion axle (42) slides, can with punching axle (4) butt when extrusion axle (42) lapse, extrusion axle (42) correspond the position department of every group subassembly (41) of punching and all set up the groove of stepping down (421) that set up around extrusion axle (42) lateral wall, it all can sliding connection in the groove of stepping down (421) that corresponds to punch nail (411).

3. The tire casing cutting machine of claim 2, wherein: frame (1) corresponds backup pad (43) of the vertical setting of the equal fixedly connected with in position department at extrusion axle (42) both ends, spout (431) of vertical setting all have been seted up on the face that two backup pad (43) are close to each other, equal sliding connection has slider (432) in spout (431), extrusion axle (42) both ends are rotated respectively and are connected on slider (432) that correspond, the equal fixedly connected with extrusion spring (433) of slider (432) top surface, the equal fixed connection in position department that spout (431) are close to in backup pad (43) of the one end that slider (432) were kept away from in extrusion spring (433), when extrusion spring (433) all is in natural state, extrusion axle (42) and trompil axle (4) butt.

4. The tire casing cutting machine of claim 1, wherein: cover tyre material loading subassembly (3) can dismantle jointly and be connected with cover tyre material loading axle (33) including two supports (31) of fixed connection in the both sides position department of frame (1) one end in two supports (31) tops, and top silo (32) have all been seted up to two supports (31) top surfaces, and cover tyre material loading axle (33) both ends set up respectively in last silo.

5. The tire casing cutting machine of claim 4, wherein: well silo (21) have all been seted up in the lateral wall middle part of keeping away from holing axle (4) in two supports (31), and well silo (21) all run through support (31) on the width direction of frame (1), and well silo (21) are by the one end of keeping away from holing axle (4) to the orientation downward sloping setting that is close to holing axle (4), and protection feed mechanism includes both ends difference sliding connection in two protection feed shafts (22) in silo (21).

6. The tire casing cutting machine of claim 1, wherein: laminating mechanism (5) are including rotating drive roll (51) of connecting in frame (1) corresponding drilling shaft (4) and keeping away from protection material loading subassembly (2) one side, drive roll (51) set up along the width direction of frame (1), frame (1) is close to position department rotation of drive roll (51) and is connected with driven voller (52) that are on a parallel with drive roll (51) setting, be formed with between the lateral wall of driven voller (52) and the lateral wall of drive roll (51) and highly be less than walking material clearance (53) of the sum of cover tire rubber layer and curtain cloth thickness, frame (1) corresponds position department fixedly connected with driving motor (54) of drive roll (51) one end, drive roll (51) fixed connection is on the output shaft of driving motor (54).

7. The tire casing cutting machine of claim 1, wherein: frame (1) top surface corresponds laminating mechanism (5) and cuts the position department rotation between mechanism (7) and is connected with spacing axle (6), spacing axle (6) set up along the width direction of frame (1), frame (1) corresponds limiting plate (61) of the equal fixedly connected with vertical setting of position department at spacing axle (6) both ends, spacing groove (62) of vertical setting all have been seted up on the face that two limiting plates (61) are close to each other, equal sliding connection has stopper (60) in spacing groove (62), spacing axle (6) both ends rotate respectively to be connected on stopper (60) that correspond, the equal fixedly connected with spacing spring (63) of stopper (60) top surface, the equal fixed connection of one end that stopper (60) were kept away from in spacing spring (63) is close to the position department of spacing groove (62) in limiting plate (61), spacing axle (6) lateral wall and frame (1) top surface butt when spacing spring (63) are out of natural state.

8. The tire casing cutting machine of claim 7, wherein: cut mechanism (7) and correspond spacing axle (6) including fixed connection in frame (1) top and keep away from cutting roof beam (71) of perforating axle (4) one side, cut roof beam (71) level setting, be formed with cutting space (72) between cutting roof beam and frame (1) top surface, the height in cutting space (72) is greater than the sum of the thickness of curtain cloth and cover rubber layer, and cut roof beam (71) and set up to the direction slope that is close to spacing axle (6) by the one end of keeping away from spacing axle (6), sliding connection has cutting knife (73) on cutting roof beam (71), the cutting edge of cutting knife (73) is run down and is set up and the cutting edge of cutting knife (73) is by the one end that is close to frame (1) top surface to the other end tilt up setting, cutting knife (73) can be followed the length direction slip of cutting roof beam (71), cutting knife (73) bottom and frame (1) top.

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