CN210651965U - Device for simultaneously preparing treads with various widths - Google Patents

Abstract

The utility model relates to the field of tire tread molding equipment, in particular to a device for simultaneously preparing treads with various widths, which comprises an extrusion molding device, a conveying roller, a support frame and a first rotating part, wherein the support frame is arranged at one side of the extrusion molding device, the conveying roller is arranged on the support frame, the first rotating part is arranged on the support frame and is used for driving the conveying roller to rotate on the support frame, a cutting device for changing the width of the treads is arranged on the support frame, the cutting device comprises two cutters and an adjusting component, the two cutters for cutting the treads are symmetrically arranged at two sides of the treads, the lowest point of the cutter is abutted against the peripheral surface of the conveying roller, the adjusting component is arranged on the support frame and drives the cutters to move towards or away from each other, time and labor are saved, and the number of times for replacing a die plate is reduced, the production efficiency of the tread is improved.

Description

Device for simultaneously preparing treads with various widths

Technical Field

The utility model belongs to the technical field of tire tread demolding equipment and specifically relates to a device of multiple width tread of simultaneous preparation is related to.

Background

In the prior art, when a tire is formed, a tread is formed through a mixing process and an extrusion process, and then the tire is formed through processes of cutting, forming and the like.

The traditional Chinese patent with publication number CN105946162A discloses a tire calendering production line, which comprises a feeding bin for providing calendering raw materials, a measuring hopper, a kneading machine, a plasticizing machine, an open mill, a conveying belt and a calendering system; the measuring hopper is arranged at the feed opening of the feed bin; the feeding port of the kneading machine is communicated with the discharging port of the metering hopper, the kneading machine is connected with the plasticizing machine, the plasticizing machine is connected with the open mill, and the open mill is connected with the calendering system.

The above prior art solutions have the following drawbacks: when the tire to different specifications is produced, the width of the tread that needs just also inequality, just so need the mouth plate of the discharge gate of calendering system to change along with the width of tread, if use current calendering system to produce the tire, just need the staff to carry out frequent dismantlement and change to the mouth plate of the discharge gate position department of calendering system, will waste more time and manpower like this.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prepare device of multiple width tread simultaneously, reached save time and manpower, reduced the change number of times of mouth template, improved the production efficiency's of tread effect.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a prepare device of multiple width tread simultaneously, including extrusion moulding device, the conveying roller, support frame and first rotation piece, the support frame sets up the one side at extrusion moulding device, the conveying roller sets up on the support frame, first rotation piece sets up and is used for driving the conveying roller and rotates on the support frame, be provided with the cutting device who is used for changing tread width on the support frame, cutting device includes cutter and adjusting part, a cutter that is used for carrying out the cutting to the tread is provided with two altogether, two cutter symmetries set up the both sides at the tread, the minimum of cutter and global looks butt of conveying roller, adjusting part sets up on the support frame and drives the cutter and removes to the direction that is close to each other or keeps away.

By adopting the scheme, when the tire tread is produced, a worker adds a material into the extrusion molding device, and the extrusion molding device can mold the material into the tread with larger width; before the tread slides on the conveying roller, the distance between the two cutters is adjusted through the adjusting assembly according to the required width of the tread until the distance between the two cutters is the same as the required width of the tread; after on the conveying roller falls down to the tread, first rotating member can drive the child through the conveying roller and remove towards the direction of keeping away from extrusion moulding device, like this when the tread moves on the conveying roller and when being provided with the position of cutter, the part that the tread is many out can be downcut by the cutter, and then obtain the tread of the width of needs, just so need not staff's width as required carry out frequent change to the inside mouth type board of extrusion moulding device, time saving and manpower have been reached, the effect of the production efficiency of improvement tread.

The utility model discloses further set up to, the adjusting part includes the fixed block, two-way lead screw, the movable block, guide bar and second rotate the piece, the fixed block sets up on the support frame, the cutter sets up in one side of movable block, two-way lead screw is the same with the moving direction of cutter with the extending direction of guide bar, two-way lead screw rotates to be connected on the fixed block, two-way lead screw runs through the movable block with the guide bar simultaneously, movable block and two-way lead screw threaded connection, movable block and guide bar sliding connection, the second rotates the piece and sets up the one end at two-way lead screw and drives two.

By adopting the above scheme, when the distance between two cutters needs to be adjusted, the rotating part drives the bidirectional lead screw to rotate above the supporting frame, because the bidirectional lead screw runs through the moving block and is in threaded connection with the moving block, the guide rod runs through the moving block and is in sliding connection with the moving block, when the bidirectional lead screw rotates, the bidirectional lead screw can drive the moving block to move on the guide rod, because the cutters are arranged on one side of the moving block, and the extending direction of the bidirectional lead screw and the guide rod is the same as the moving direction of the cutters, the moving block can drive the two cutters to move towards the direction close to or away from each other, and thus, the process of adjusting the distance between the two cutters is completed.

The utility model discloses further set up to, be provided with the installation pipe on the cutter, the inside rotation of installation pipe is connected with the installation pole, and the installation pole removes along with the movable block together.

Through adopting above-mentioned scheme, the cutter rotates with the installation pole through the installation pipe to be connected, so can drive the cutter and rotate on the installation pole when the conveying roller rotates, can make the cutter better to the cutting effect of tread like this.

The utility model discloses further set up to, be provided with the lifting unit who drives the installation pole and reciprocate along vertical direction in one side of movable block.

Through adopting above-mentioned scheme, when needing to change the cutter, people can drive installation pole and cutter rebound through lifting unit earlier, make the cutter no longer with the global looks butt of conveying roller, can make things convenient for people to pull down the cutter from the installation pole like this.

The utility model discloses further set up to, lifting unit includes elevator, guide bar and rotates the lead screw, and guide bar and rotation lead screw extend along vertical direction, and the elevator is run through simultaneously to guide bar and rotation lead screw, elevator and rotation lead screw threaded connection, elevator and guide bar sliding connection, guide bar and movable block fixed connection, it is connected with the movable block rotation to transfer the lead screw, and the movable block was kept away from in the elevator to the installation pole setting one side.

Through adopting above-mentioned scheme, when highly adjusting installation pole and cutter through lifting unit, rotate the lead screw earlier, because rotate the lead screw run through the lifter and with lifter threaded connection, the guide pole run through the lifter and with lifter sliding connection, so rotate the lead screw and can drive the movable block and reciprocate along vertical direction on the guide pole, because the installation pole sets up the one side at the lifter, so the movable block can drive installation pole and cutter and reciprocate along vertical direction together.

The utility model discloses further set up to, be provided with the rotation handle at the top end that rotates the lead screw.

Through adopting above-mentioned scheme, rotate the handle and can make things convenient for people to rotate the lead screw.

The utility model discloses further set up to, the guide bar is provided with two altogether to two guide bars are located the upper and lower both sides of two-way lead screw respectively.

Through adopting above-mentioned scheme, because the guide bar is provided with two altogether, can increase the distance between movable block peak and the minimum like this, just so enlarged lifting unit drive installation pole and the scope that the cutter reciprocated, make people can change the cutter of multiple different diameters and cut rubber.

The utility model discloses further set up to, be provided with the driving piece that the installation pole reciprocated along vertical direction in one side that the elevator is close to the cutter.

By adopting the scheme, after the lifting block moves to the limit position on the moving block, people can drive the mounting rod and the cutter to continue to move up and down for a certain distance along the vertical direction through the driving piece, so that the range of the mounting rod and the cutter moving along the vertical direction is further enlarged.

To sum up, the utility model discloses following technological effect has:

1. by arranging the cutting device, a worker can form a tread with a larger width by adopting the extrusion forming device with a larger mouth-shaped plate, and then cut off the redundant part of the formed tread by using the cutting device so as to obtain the tread with a required width, thereby achieving the effects of saving time and labor and improving the production efficiency of the tread;

2. through having set up lifting unit, after the cutter is changed and is accomplished, can adjust the height of cutter through lifting unit, make things convenient for the staff to adjust the height of cutter like this.

Drawings

FIG. 1 is an overall structure of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

fig. 4 is a partial view of the present invention.

In the figure, 2, an extrusion molding apparatus; 21. a first extruder; 22. a odor removal assembly; 221. a deodorizing cover; 222. a deodorizing pipe; 223. a plastic film; 23. a second extruder; 24. a machine head; 3. a conveying device; 31. a support frame; 32. a conveying roller; 33. A first rotating member; 4. a cutting device; 41. a cutter; 42. an adjustment assembly; 421. a fixed block; 422. a bidirectional lead screw; 423. A moving block; 424. a guide bar; 425. a second rotating member; 43. a lifting assembly; 431. a lifting block; 432. a guide rod; 433. rotating the lead screw; 434. rotating the handle; 44. installing a pipe; 45. mounting a rod; 46. a drive member; 6. a recovery device; 61. a conveyor belt; 62. a direction changing component; 621. a bearing rod; 622. a turning roller; 623. a limiting ring; 624. a pressure roller; 625. An auxiliary lever; 626. an auxiliary roller; 63. a guide roller; 7. a tread; 71. strip waste.

Detailed Description

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

Referring to fig. 1, the utility model provides a prepare device of multiple width tread simultaneously, including extrusion moulding device 2, conveyor 3 and cutting device 4, extrusion moulding device 2 sets up subaerial, and conveyor 3 sets up in one side of extrusion moulding device 2, and cutting device 4 sets up the top at conveyor 3.

The in-process of producing the type is carried out tire tread 7, add the material inside extrusion moulding device 2, extrusion moulding device 2 makes the material shaping for tread 7 and carry conveyor 3 with tread 7 after mixing the material inside, conveyor 3 can drive inside tread 7 and remove to the direction of keeping away from extrusion moulding device 2, cutting device 4 can cut conveyor 3 inside tread 7 simultaneously, can make the staff obtain the tread 7 of required width like this, when the staff produces tread 7 of different specifications, just need not frequent change mouth plate, time and manpower have been saved to reached, improve work efficiency's effect.

Referring to fig. 1, the extrusion molding device 2 includes a first extruder 21, an odor removal assembly 22, a second extruder 23, and a head 24, the first extruder 21 is located above the second extruder 23, discharge ports of the first extruder 21 and the second extruder 23 both extend toward a direction close to the conveying device 3, the head 24 for molding the tread 7 is disposed between the discharge ports of the first extruder and the second extruder 23 and the conveying device 3, and the head 24 has a supporting function on the discharge ports of the first extruder and the second extruder 23, the material inside the second extruder 23 is molded into a central position of the tread 7, the material inside the first extruder 21 is molded into positions close to both sides of the tread 7, and the odor removal assembly 22 is disposed above the head 24 and can remove odor generated when the tread 7 is molded.

Referring to fig. 1, the specific structure of the first extruder 21 and the second extruder 23 can refer to chinese invention patent publication No. CN 107498823A.

Referring to fig. 1, odor removal assembly 22 includes odor removal cover 221, odor removal pipe 222 and plastic film 223, odor removal cover 221 covers the top of handpiece 24, odor removal cover 221 has a flared cross-sectional shape, and one side of odor removal cover 221 wide mouth is downward, odor removal pipe 222 communicates with odor removal cover 221 inside at the upper surface of odor removal cover 221, one end of odor removal pipe 222 far away from odor removal cover 221 extends to the direction far away from odor removal cover 221, and plastic film 223 is vertically disposed on the side of odor removal cover 221. Therefore, when the odor generated in the material forming process passes through the odor removal cover 221 and the odor removal pipe 222 in sequence and is discharged outside the discharge channel, the harm to the body caused by the suction of workers is avoided.

Referring to fig. 1, the conveying device 3 includes a supporting frame 31, a conveying roller 32 and a first rotating member 33, the supporting frame 31 is horizontally disposed on the ground, the conveying roller 32 is rotatably connected inside the supporting frame 31, an axial direction of the conveying roller 32 is perpendicular to a direction in which the tread 7 moves on the conveying roller 32, and the first rotating member 33 is disposed on the supporting frame 31 and is used for driving the conveying roller 32 to rotate on the supporting frame 31. When the tread 7 falls onto the conveying roller 32, the first rotating member 33 drives the conveying roller 32 to rotate, and the conveying roller 32 drives the tread 7 to move, so that the abrasion of the conveying roller 32 and the molded tread 7 can be reduced.

Referring to fig. 1, in the present invention, the first rotating member 33 is preferably a rotating electric machine, and other rotating members having the same effect are still applicable.

Referring to fig. 1 and 2, the cutting device 4 includes two cutting blades 41 and an adjusting assembly 42, the two cutting blades 41 are symmetrically disposed on two sides of the tread 7, the two cutting blades 41 are inclined in a direction from bottom to top toward a direction of approaching each other, a lowest point of the cutting blade 41 abuts against a circumferential surface of the conveying roller 32, and the adjusting assembly 42 is disposed on the supporting frame 31 and drives the cutting blades 41 to move in a direction of approaching or departing from each other. Before the tread 7 is produced, the distance between the two cutting blades 41 is adjusted by using the adjusting assembly 42 according to the required width of the tread 7, and the cutting off can cut off the excessive width of the tread 7 during the movement of the tread 7, so that the tread 7 with the required width is obtained.

Referring to fig. 2, the adjusting assembly 42 includes a fixed block 421, a bidirectional screw 422, a moving block 423, two guide rods 424 and a second rotating member 425, the cutting knife 41 is disposed on one side of the moving block 423, the extending directions of the bidirectional screw 422 and the guide rods 424 are the same as the moving direction of the cutting knife 41, the two guide rods 424 are disposed, the two guide rods 424 are respectively disposed on the upper and lower sides of the bidirectional screw 422, the fixed block 421 is disposed at two ends of the bidirectional screw 422 and the guide rods 424, the bidirectional screw 422 is rotatably connected to the fixed block 421, the fixed block 421 is fixedly connected to the supporting frame 31, the bidirectional screw 422 and the guide rods 424 both penetrate through the moving block 423, the moving block 423 is in threaded connection with the bidirectional screw 422, the moving block 423 is slidably connected to the guide rods 424, and the second rotating member 425. When the distance between the two cutters 41 needs to be adjusted, the second rotating member 425 is turned on, the second rotating member 425 drives the bidirectional screw 422 to rotate, and the bidirectional screw 422 drives the moving block 423 and the cutters 41 to move in the direction of approaching to or separating from each other on the guide rod 424, so that the process of adjusting the distance between the two cutters 41 is realized.

Referring to fig. 2, in the present invention, the second rotating member 425 is preferably a rotating motor, and other second rotating members 425 having the same effect are still applicable.

Referring to fig. 2, after the cutting of the tread 7 by the cutting knife 41 is completed, in order to facilitate the process of driving the cutting knife 41 to move upwards and further to retract the cutting knife, a lifting assembly 43 for driving the cutting knife 41 to move up and down is arranged on the moving block 423.

Referring to fig. 2, the lifting assembly 43 includes a lifting block 431, two guide rods 432 and two rotary screws 433, the lifting block 431 is located on one side of the moving block 423 close to the cutting knife 41 and above the cutting knife 41, the two guide rods 432 and the rotary screws 433 extend in a vertical direction, the two guide rods 432 are respectively located on two sides of the rotary screws 433, the two guide rods 432 and the rotary screws 433 simultaneously penetrate through the lifting block 431, the lifting block 431 is in threaded connection with the rotary screws 433, the lifting block 431 is in sliding connection with the guide rods 432, the guide rods 432 are fixedly connected with the moving block 423, and the transfer screws are in rotary connection with the moving block 423. When the cutter retracting process is needed, the rotating lead screw 433 is rotated, because the rotating lead screw 433 penetrates through the lifting block 431 and is in threaded connection with the lifting block 431, the rotating lead screw 433 is in threaded connection with the moving block 423, and therefore the rotating lead screw 433 can drive the lifting block 431 and the cutter 41 to move on the moving block 423 along the vertical direction.

Referring to fig. 2, in order to facilitate the worker to rotate the rotation screw 433, a rotation handle 434 is provided at an upper end of the rotation screw 433.

Referring to fig. 2, in order to make the cutting process of the tread 7 by the cutting knife 41 smoother, a mounting tube 44 coaxial with the cutting knife 41 is disposed on a side where the cutting knife 41 is far away from each other, a mounting rod 45 is disposed below the lifting block 431, and the mounting rod 45 is inserted into the mounting tube 44 and rotatably connected with the mounting tube 44.

Referring to fig. 2, when the distance of the up-and-down movement of the cutting knife 41 is too small, in order to save time and labor, a driving member 46 for driving the mounting rod 45, the mounting tube 44 and the cutting knife 41 to move up and down is provided on the lifting block 431, so that the worker can directly drive the cutting knife 41 to move up and down through the driving member 46.

Referring to fig. 2, in the present invention, the driving member 46 is preferably a driving cylinder, the lower end of the piston rod of the driving cylinder is fixedly connected to the mounting rod 45, and other driving members 46 with the same effect are still applicable.

Referring to fig. 1, in the process of cutting a tread 7 having a large width by the cutting device 4, a scrap having a strip shape is generated, and in order to realize waste utilization and reduce waste of resources, a recovery device 6 for recovering and utilizing the scrap is provided on a side of the cutting device 4 away from the extrusion molding device 2.

Referring to fig. 1 and 3, recovery unit 6 includes conveyer belt 61, diversion assembly 62 and guide roll 63, conveyer belt 61 sets up the top at cutting device 4, the one end that conveyer belt 61 is close to cutting device 4 is located cutting device 4 directly over, the one end that conveyer belt 61 is kept away from cutting device 4 runs through to remove flavor cover 221 after with the inside intercommunication of second extruder 23, the axis direction of guide roll 63 is the same with two-way lead screw 422's axis direction, guide roll 63 sets up the one side of keeping away from extrusion molding device 2 at conveyer belt 61, guide roll 63 sets up the top at support frame 31, diversion assembly 62 sets up between guide roll 63 and conveyer belt 61. The waste material produced during the process of cutting the width of the tread 7 by the cutting knife 41 firstly bypasses the side of the guide roller 63 far away from the extrusion molding device 2, then extends to the upper surface of the conveying belt 61 under the action of the direction changing assembly 62, and finally extends to the inside of the second extruder 23 far away from the ground, and the guide roller 63 can prevent the waste material from inclining to the direction close to the extrusion molding device 2, and finally influences the cutting quality of the tread 7 by the cutting device 4.

Referring to fig. 1 and 4, the direction changing assembly 62 includes a carrying rod 621, two direction changing rollers 622 and a limit ring 623, the carrying rod 621 is disposed between two fixing blocks 421, the extending direction of the carrying rod 621 is the same as the extending direction of the guide roller 63, the two direction changing rollers 622 are disposed, the direction changing rollers 622 are rotatably disposed on the side surfaces, away from the extrusion molding device 2, of the carrying rod 621, the axial direction of the direction changing rollers 622 is the same as the moving direction of the tread 7, the direction changing rollers 622 close to the conveying belt 61 are located right below the conveying belt 61, and the limit ring 623 is sleeved at two ends of the direction changing rollers 622. The strip-shaped scraps 71 generated in the cutting process continuously extend upwards after passing through the guide roller 63, the strip-shaped scraps 71 close to the conveying belt 61 pass through one side of the turning roller 622 positioned below the conveying belt 61, and then extend into the second extruder 23 through the conveying belt 61; the strip-shaped scraps 71 far away from the conveying belt 61 firstly bypass from the side of the direction-changing roller 622 far away from the conveying belt 61, and then bypass from the side of the direction-changing roller 622 below the conveying belt 61 and extend onto the conveying belt 61, so that the recovery process of the strip-shaped scraps 71 is smoother; and because the direction changing roller 622 is provided with the limiting ring 623, the limiting ring 623 can prevent the strip-shaped waste 71 from separating from the direction changing roller 622.

Referring to fig. 1 and 4, in the process of recycling the strip-shaped waste 71 by the recycling device 6, in order to avoid the strip-shaped waste 71 becoming loose and causing the strip-shaped waste 71 to affect the cutting process of the cutting device 4, two pressing rollers 624 having the same structure as the direction-changing rollers 622 are arranged between the two direction-changing rollers 622, and a limiting ring 623 is also sleeved on the circumferential surface of the pressing rollers 624.

Referring to fig. 1 and 4, in order to make the strip-shaped scraps 71 move more smoothly on the upper surface of the conveyor belt 61, an auxiliary rod 625 is disposed above the receiving rod 621, the extending direction of the auxiliary rod 625 is the same as the extending direction of the receiving rod 621, an auxiliary roller 626 having the same structure as the direction-changing roller 622 is disposed on the side of the auxiliary rod 625 away from the extrusion molding apparatus 2, a stopper ring 623 is also sleeved on the circumferential surface of the auxiliary roller 626, and the auxiliary roller 626 is located right below the end of the conveyor belt 61 close to the cutting apparatus 4.

To sum up, the utility model discloses a use does: when the tread 7 needs to be processed, materials are added into the first extruder 21 and the second extruder 23, the first extruder 21 and the second extruder 23 mix the materials, then the materials are molded into the tread 7 through the machine head 24, and the tread 7 is conveyed to the conveying roller 32; the tread 7 moves towards the direction far away from the extrusion molding device 2 under the action of the conveying roller 32, and in the process that the tread 7 moves on the conveying roller 32, the cutter 41 in the cutting device 4 can cut off the redundant part of the width of the tread 7, so that the tread 7 with the width required by a worker is obtained; the scrap material produced during cutting extends first upwards from the side of the guide roller 63 remote from the cutting device 4. Then extends to the conveyor belt 61 under the action of the direction-changing assembly 62 and the auxiliary roller 626, and finally enters the interior of the second extruder 23; the second extruder 23 can repeatedly mix the waste materials generated by cutting, so that the waste materials can be reused, and the utilization rate of the waste materials is improved.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (8)

1. The utility model provides a prepare device of multiple width tread simultaneously, includes extrusion moulding device (2), conveying roller (32), support frame (31) and first commentaries on classics piece (33), and support frame (31) set up the one side at extrusion moulding device (2), and conveying roller (32) set up on support frame (31), and first commentaries on classics piece (33) set up and are used for driving conveying roller (32) and rotate on support frame (31), its characterized in that: be provided with cutting device (4) that are used for changing tread (7) width on support frame (31), cutting device (4) include cutter (41) and adjusting part (42), cutter (41) for cutting tread (7) are provided with two altogether, two cutters (41) symmetry set up the both sides in tread (7), the minimum point of cutter (41) and global looks butt of conveying roller (32), adjusting part (42) set up on support frame (31) and drive cutter (41) to the direction removal that is close to each other or keeps away from each other.

2. An apparatus for simultaneously preparing treads of multiple widths according to claim 1, wherein: adjusting part (42) includes fixed block (421), two-way lead screw (422), movable block (423), guide bar (424) and second rotate piece (425), fixed block (421) set up on support frame (31), cutter (41) set up the one side at movable block (423), the extending direction of two-way lead screw (422) and guide bar (424) is the same with the moving direction of cutter (41), two-way lead screw (422) rotate to be connected on fixed block (421), two-way lead screw (422) run through movable block (423) with guide bar (424) simultaneously, movable block (423) and two-way lead screw (422) threaded connection, movable block (423) and guide bar (424) sliding connection, second rotates piece (425) and sets up the one end at two-way lead screw (422) and drives two-way lead screw (422) and rotate.

3. An apparatus for simultaneously preparing treads of multiple widths, as claimed in claim 2, wherein: the cutting knife (41) is provided with a mounting tube (44), a mounting rod (45) is rotatably connected inside the mounting tube (44), and the mounting rod (45) moves along with the moving block (423).

4. An apparatus for simultaneously preparing treads of multiple widths according to claim 3, wherein: and a lifting component (43) which drives the mounting rod (45) to move up and down along the vertical direction is arranged on one side of the moving block (423).

5. An apparatus for simultaneously preparing treads of multiple widths according to claim 4, wherein: the lifting assembly (43) comprises a lifting block (431), a guide rod (432) and a rotating lead screw (433), the guide rod (432) and the rotating lead screw (433) extend in the vertical direction, the guide rod (432) and the rotating lead screw (433) simultaneously penetrate through the lifting block (431), the lifting block (431) is in threaded connection with the rotating lead screw (433), the lifting block (431) is in sliding connection with the guide rod (432), the guide rod (432) is fixedly connected with a moving block (423), a transfer lead screw is in rotating connection with the moving block (423), and a mounting rod (45) is arranged on one side, away from the moving block (423), of the lifting block (431).

6. An apparatus for simultaneously preparing treads of multiple widths according to claim 5, wherein: a rotating handle (434) is arranged at the upper end head of the rotating screw rod (433).

7. An apparatus for simultaneously preparing treads of multiple widths according to claim 5, wherein: the number of the guide rods (424) is two, and the two guide rods (424) are respectively positioned on the upper side and the lower side of the bidirectional screw rod (422).

8. An apparatus for simultaneously preparing multiple widths of tread according to claim 7, wherein: a driving piece (46) for mounting the rod (45) to move up and down along the vertical direction is arranged on one side of the lifting block (431) close to the cutter (41).

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