CN220762754U

CN220762754U - Tire molding material cutting device

Info

Publication number: CN220762754U
Application number: CN202322551102.XU
Authority: CN
Inventors: 杜洪起; 鲁永利
Original assignee: BEIJING HANCH CO LTD
Current assignee: BEIJING HANCH CO LTD
Priority date: 2023-09-19
Filing date: 2023-09-19
Publication date: 2024-04-12
Anticipated expiration: 2033-09-19

Abstract

The utility model provides a cutting device for tire molding materials, and belongs to the field of manufacturing of tire industrial equipment. The cutting device comprises a support and a linear module, wherein a track backup plate is fixed on the side surface of the linear module; the slide carriage of the linear module is provided with a front guide part and a rear guide part, and a rotating part is arranged below the push plate of the front guide part and the rear guide part; the push plates of the front and rear guide parts are provided with rollers which move along the track surface of the track backup plate under the action of the front and rear guide parts and the linear modules; the ultrasonic cutter is arranged on the rotating part through the cutter rest; the cutting device further comprises a secondary knife board, a groove is formed in the surface of the secondary knife board, and the shape of the groove is matched with the projection shape of the track surface of the track backup board. The cutting device can realize cutting of different shape angles, the shape angle of the fracture edge generated after cutting is consistent with that of the track backup plate, and the material can be molded once under the condition of ensuring the cutting quality.

Description

Tire molding material cutting device

Technical Field

The utility model belongs to the field of manufacturing of tire industrial equipment, and particularly relates to a cutting device used on a feeding frame of a tire forming machine, which is particularly suitable for an aviation tire forming machine.

Background

Current global aviation markets are experiencing a proliferation of air travel demands, resulting in increased production of new aircraft to meet the increasing demands of passengers. This has rapidly driven the need for aircraft tires, and the aviation radial tire market has shown a rapid growth in recent years. In the field, many tyre production enterprises in China are also increasing research and development investment, and striving to break through the absolute predominance of several international tyre megaly to the market. Because of complicated manufacturing process, high technical index requirements and severe use environment, aviation radial tires are known as 'bright beads on crowns' in the tire industry.

Compared with the common passenger car tire, the aviation radial tire has the advantages that the number of layers of materials used by the aviation radial tire is large, the number of varieties is also large, most materials need to be automatically cut before being attached, and the cutting quality requirement is high. The conventional tyre material is cut, generally, the tyre material is directly cut along the width direction of the tyre material, and the included angle between the cutting edge and the side edge of the tyre material is 90 degrees; while for an aviation radial tire this included angle is typically slightly greater than 90 degrees or slightly less than 90 degrees. For the aviation radial tire material containing left and right rubber materials, the left and right rubber materials are symmetrically distributed relative to the center line of the tire, so that the angles of the fracture edges of the materials on the two sides after cutting are completely opposite, two sets of linear track cutting devices are needed to complete the cutting work, and the two times of cutting by a single device are not easy to realize, so that the equipment cost is high and the operation is complex.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provide the tire molding material cutting device, the cutting knife of the cutting device runs according to the track surface of the track backup plate, the cutting of different shape angles can be realized, the shape angle of the cut edge generated after cutting is consistent with the shape angle of the track backup plate, the cutting requirements of some materials in the current aviation radial tire production are met, and the materials can be molded once under the condition of ensuring the cutting quality.

The utility model is realized by the following technical scheme:

a tyre molding material cutting device comprises a support, wherein a linear module is arranged on the support and drives an ultrasonic cutter to do reciprocating linear motion;

the side surface of the linear module is fixed with a track backup plate, and the surface of the track backup plate opposite to the linear module is a track surface;

a front guide part and a rear guide part are arranged on the slide carriage of the linear module, a rotating part is arranged below the push plate of the front guide part and the rear guide part, the action direction of the front guide part and the rear guide part, the rotating axis of the rotating part and the moving direction of the linear module are mutually perpendicular, and the rotating axis of the rotating part is vertically arranged;

the push plates of the front and rear guide parts are provided with rollers which move along the track surface of the track backup plate under the action of the front and rear guide parts and the linear modules;

the ultrasonic cutter is arranged on the rotating part through the cutter rest;

the cutting device further comprises a secondary knife board, a groove is formed in the surface of the secondary knife board, and the shape of the groove is matched with the projection shape of the track surface of the track backup board.

Preferably, the end of the wheel shaft of the roller is provided with threads, and the roller is fixed on the lower end face of the push plate of the front and rear guide parts through threads.

Preferably, the auxiliary knife plate is a steel plate, nylon materials are inlaid on the surface of the auxiliary knife plate, and the grooves are formed in the nylon materials.

Preferably, the front and rear guide members and the rotating member employ cylinders.

Preferably, the track surface of the track backup plate is formed by intersecting two symmetrical surfaces with a certain angle, the projection shape of the track surface is a symmetrical fold line shape, and the grooves on the auxiliary knife plate are matched with the track surface.

Preferably, the auxiliary knife board comprises a first auxiliary knife board and a second auxiliary knife board which are sequentially arranged along the moving direction of the linear module, the groove of the first auxiliary knife board is in a broken line shape and is positioned below the track backup board, and the groove of the second auxiliary knife board is in a linear shape.

Preferably, the track backup plate comprises a first track backup plate and a second track backup plate which are sequentially arranged along the moving direction of the linear module, the auxiliary knife plate comprises a first auxiliary knife plate and a second auxiliary knife plate which are sequentially arranged along the moving direction of the linear module, the projection shapes of the track surfaces of the track backup plate are all in a broken line shape, and the grooves on the auxiliary knife plates are broken line-shaped grooves.

Preferably, the cutting device further comprises an upper guide part and a lower guide part which are fixed on the push plates of the front guide part and the rear guide part, the rotating part is fixed on the push plates of the upper guide part and the lower guide part, and the upper guide part and the lower guide part drive the ultrasonic cutting knife to move up and down.

Preferably, the upper and lower guide members employ cylinders.

Preferably, the two sides of the support are provided with photoelectric protection devices.

Compared with the prior art, the utility model has the beneficial effects that:

when the cutting device cuts the tire molding material, the ultrasonic cutting knife transversely moves under the drive of the linear module, and meanwhile, under the action of the track backup plate, the knife body moves along with the track surface of the track backup plate, so that the angle of the fracture edge generated after cutting is consistent with the track backup plate, and the cutting requirement of the aviation radial tire molding material is met. The cutting device only uses one cutting device, so that the advancing track of the cutting knife is in a broken line shape, and two sets of linear track mechanisms are not needed to complete the cutting work. In addition, because of the complex manufacturing process of the aviation radial tire, the molding time of a single tire is long, generally exceeding 30 minutes. The cutting device can also cut two tire materials at a time without affecting the production efficiency of the forming machine. The technical scheme of the utility model can well optimize the cutting device of the existing aviation radial tire building machine, improve the cutting effect and greatly reduce the equipment cost.

Drawings

FIG. 1 is a block diagram of a tire building material cutting apparatus provided by the present utility model;

FIG. 2 is a top view of a tire building material cutting apparatus provided in FIG. 1;

FIG. 3 is an enlarged view of a portion of a tire building material cutting apparatus according to the present utility model;

fig. 4 is a diagram of a roller structure of a tire molding material cutting device according to the present utility model.

The device comprises a support seat 1, a linear module 2, a roller 3, a front and rear guide cylinder 4, an upper and lower guide cylinder 5, a rotary cylinder 6, a track backup plate 7, a photoelectric protection device 8, a secondary cutting board 9, a secondary cutting board 10, an ultrasonic cutting knife 11 and a knife rest 12.

Detailed Description

The front and rear guide parts, the upper and lower guide parts and the rotating part adopted in the embodiment of the utility model are preferably realized by air cylinders, hydraulic cylinders and the like.

The utility model is described in further detail below with reference to the attached drawing figures:

as shown in fig. 1 to 4, the tire molding material cutting device provided by the utility model comprises a support 1, wherein the support 1 comprises three upright posts which are arranged side by side, a linear module 2 is arranged on each upright post, the linear module 2 drives an ultrasonic cutter 11 to do reciprocating linear motion, the linear module 2 is an existing product, and the specification and the model of the linear module can be selected according to actual needs. The track backup plate 7 is fixed on the side surface of the linear module 2, the track backup plate 7 is of a slender solid structure, the side surface of the track backup plate is tightly attached to the linear module 2 and fastened by screws, and the surface opposite to the linear module 2 is a track surface. A front guide cylinder 4 and a rear guide cylinder 4 are arranged on a slide carriage of the linear module 2, a rotary cylinder 6 is arranged below a push plate of the front guide cylinder 4 and the rear guide cylinder 4, and the rotary cylinder 6 can move back and forth along with the push plate of the front guide cylinder 4 and the rear guide cylinder 4; the action direction of the front guide cylinder 4, the rotation axis of the rotary cylinder 6 and the movement direction of the linear module 2 are mutually perpendicular, and the rotation axis of the rotary cylinder 6 is vertically arranged. The lower end face of the push plate of the front and rear guide cylinder 4 is provided with a roller 3, the end head of a wheel shaft of the roller 3 is provided with threads, the roller 3 can move along the track surface of the track backup plate 7 by screwing the threads into the lower end face of the push plate; specifically, the roller 3 contacts and rolls with the track surface of the track backup plate 7 under the action of the front and rear guide cylinders 4 and the linear module 2. The ultrasonic cutter 11 is arranged on the rotary air cylinder 6 through the cutter rest 12, and the rotary air cylinder 6 drives the cutter rest 12 and the ultrasonic cutter 11 to rotate in a small amplitude. The cutting device also comprises an auxiliary knife board transversely arranged on the frame of the conveying belt, and the auxiliary knife board is positioned between the front conveying belt and the rear conveying belt; the surface of the auxiliary knife board is provided with a groove, the shape of the groove is matched with the projection shape of the track surface of the track backup board 7, and the knife tip of the ultrasonic cutter 11 falls into the groove; the whole pair of knife boards is made of steel, nylon materials are inlaid on the surfaces of the pair of knife boards, and grooves are formed in the nylon materials so as to prevent the ultrasonic cutting knife 11 from being damaged due to collision with the ultrasonic cutting knife.

The track surface of the track backup plate 7 can be configured with different shape angles according to the requirements of products with different specifications and types on the fracture edge of the material, and the track surface formed by intersecting two symmetrical and angled surfaces is preferably adopted for the aviation radial tire, the projection shape of the track surface is a symmetrical fold line shape, and the grooves on the auxiliary knife plate are matched with the track surface.

Before cutting, the starting position of the ultrasonic cutter 11 is adjusted so that the tip of the ultrasonic cutter is positioned in the groove of the auxiliary cutter plate and is lower than the surface of the auxiliary cutter plate by about 1 millimeter. During cutting, the ultrasonic cutting knife 11 transversely moves under the drive of the linear module 2, and the running track of the cutting knife is controlled through the front and rear guide air cylinders 4, the roller wheels 3, the track backup plate 7 and other parts. Under the action of compressed air, the front and rear guide cylinders 4 pull the devices such as the cutter and the like, including the roller 3, to the rear, so that the roller 3 is tightly attached to the track surface of the track leaning plate 7. The roller 3 makes the cutter travel along the track surface of the track backup plate 7 under the action of the track backup plate 7. The rotary cylinder 6 drives the knife rest 12 and the ultrasonic cutter 11 to rotate in a small amplitude, and the purpose of rotation is to enable the projection area of the blade in the running direction to be minimum, so that cutting is facilitated, the shape angle of the fracture edge generated after cutting is ensured to be consistent with that of the track backup plate 7, and the cutting requirement of the tire manufacturing technology is met. After cutting, the ultrasonic cutter 11 advances a small distance along the groove to reach the boundary of the auxiliary cutter plate, and the ultrasonic cutter 11 returns along the original path of the groove under the drive of the linear module 2 to reach the initial position to prepare for the next cutting. In the cutting process, most of the blade edges of the ultrasonic cutter 11 are above the auxiliary blade plate, so that the ultrasonic cutter can directly cut as long as the ultrasonic cutter is not particularly thick material, and is not more than 12 mm.

In order to improve the utilization performance of the equipment, the cutting device provided by the utility model can also span two tyre material conveying devices, and the ultrasonic cutting knife 11 runs from one end to the other end to cut two tyre materials simultaneously. Cutting one or two materials according to actual production requirements, wherein the running track of the cutter is in a folded line shape. For the case that one moving track is a broken line shape and the other track is a straight line shape: the auxiliary knife board comprises a first auxiliary knife board 10 and a second auxiliary knife board 9 which are sequentially arranged along the moving direction of the linear module 2, the groove of the first auxiliary knife board 10 is in a folded line shape and is positioned below the track backup board 7, the groove of the second auxiliary knife board 9 is in a linear shape, and the linear module 2 is selected for use with corresponding specification length. For the case that both running tracks are in a polyline shape: the track backup plate 7 is adjusted to be a track backup plate and a second track backup plate which are sequentially arranged along the moving direction of the linear module 2, the auxiliary knife plate comprises a first auxiliary knife plate 10 and a second auxiliary knife plate 9 which are sequentially arranged along the moving direction of the linear module 2, the first auxiliary knife plate 10 and the second auxiliary knife plate 9 are respectively positioned below the first track backup plate and the second track backup plate, the projection shape of the track surface of the track backup plate 7 is a broken line shape, the grooves on the auxiliary knife plates are matched with the grooves, the broken line shape grooves are formed, and the linear module 2 is also selected for use with corresponding specification lengths.

Further, the cutting device provided by the utility model further comprises an up-and-down guide cylinder 5 fixed on the push plate of the front-and-back guide cylinder 4, the rotary cylinder 6 is fixed on the push plate of the up-and-down guide cylinder 5, and the action direction of the up-and-down guide cylinder 5 is parallel to the rotary axis of the rotary cylinder 6. The upper and lower guide cylinder 5 drives the ultrasonic cutter 11 to move up and down, firstly, the ultrasonic cutter 11 is dropped when cutting begins, so that the cutter tip directly falls into a groove on the surface of the first auxiliary cutter plate 10, the top end of the cutter tip is lower than the surface of the auxiliary cutter plate by about 1 millimeter, quick cutter setting is realized, and the ultrasonic cutter 11 is directly lifted after cutting is finished, and the ultrasonic cutter is quickly returned to the initial position; secondly, when two materials are cut, the ultrasonic cutter 11 transversely spans from the conveyor belt on one side to the conveyor belt on the other side, and because the conveyor belt is provided with a frame, in order to prevent collision interference between the ultrasonic cutter 11 and the frame of the conveyor belt, the upper and lower guide cylinders 5 lift the ultrasonic cutter 11 until the other side is reached, and then put down for cutter setting, so that the cutter tip of the ultrasonic cutter 11 falls into a groove on the surface of the second auxiliary cutter plate 9.

In actual use, the actions of the linear module 2, the front and rear guide cylinders 4, the up and down guide cylinders 5, the rotary cylinder 6 and the like can be controlled manually, and the actions of all the components can be controlled by a control system of the forming machine.

In fig. 1 and 2, two different tire materials are shown, one material comprising left and right strips of rubber and the other material comprising only one rubber. Namely, one running track is in a zigzag shape, and the other running track is in a straight shape. The cutting process is specifically described below:

the tyre material is conveyed by the conveyer belt, the conveyer belt comprises a front conveyer belt and a rear conveyer belt, the front conveyer belt, the auxiliary knife board and the rear conveyer belt are sequentially arranged, the surface of the auxiliary knife board is level with the surfaces of the front conveyer belt and the rear conveyer belt, and the tyre material moves along the arrow direction in the figure on the three conveyer belts.

After the material conveying action of the tire building machine is stopped, the building machine controls the cutting device to start working.

Firstly, a driving motor of the linear module 2 is started, and all devices arranged on a slide carriage of the linear module 2 are driven to start to transversely move. When the top end of the ultrasonic cutter 11 reaches the edge of the first auxiliary cutter plate 10, the upper and lower guide cylinders 5 push out, so that the ultrasonic cutter 11 falls down, after the action is finished, the cutter point just falls into the groove on the surface of the first auxiliary cutter plate 10, and the top end of the cutter point is lower than the surface of the second auxiliary cutter plate by about 1 millimeter, so that the cutting position requirement is met.

The linear module 2 is driven to continuously move transversely.

When the tip of the ultrasonic cutter 11 reaches the start point of the polygonal groove, two actions occur. One is that the rotary cylinder 6 starts, drives knife rest 12 and ultrasonic wave cut-off knife 11 to rotate by a small margin, and the purpose of rotation is to let the projected area of blade in the direction of travel reach minimum to do benefit to the cutting and guarantee cutting quality. The other is that the roller 3 arranged on the push plate of the front and rear guide cylinder 4 is pushed by the track backup plate 7, so that all connected devices on the push plate of the front and rear guide cylinder 4 start to move forwards against the tensile force of the front and rear guide cylinder 4, the front cavity of the front and rear guide cylinder 4 is connected with compressed air with a certain pressure, the electromagnetic valve is not needed to control, the function of a spring is achieved, the roller 3 is always attached to the track surface of the track backup plate 7, and after the action and the transverse movement action are combined, the ultrasonic cutter 11 moves along with the track surface of the track backup plate 7 in a folding line mode. During travel, the blade contacts the tire compound to cut it.

When the top end of the ultrasonic cutter 11 reaches the midpoint of the zigzag groove, the rotary cylinder 6 reversely rotates to an angle favorable for cutting. The ultrasonic cutter 11 continues to travel along the path formed by the track pad 7 to cut the second strip of gum material of the first material.

When the tip of the ultrasonic cutter 11 reaches the end of the polygonal groove, the rotary cylinder 6 rotates back to the original state. At this time, the roller 3 also reaches the end of the track surface of the track plate 7. The ultrasonic cutter 11 continues to move laterally and the first material is cut.

When the top end of the ultrasonic cutter 11 reaches the other edge of the first auxiliary cutter plate 10, the up-and-down guide cylinder 5 is lifted up, so that the ultrasonic cutter 11 is lifted up over an obstacle such as a frame of a conveyor belt and approaches the second material. When the top end of the ultrasonic cutter 11 reaches the edge of the secondary cutter plate No. 9, the upper and lower guide cylinders 5 drop down, and the cutter tip reaches a predetermined point in the groove, that is, about 1 mm lower than the surface of the secondary cutter plate No. 9.

The transverse movement continues and the ultrasonic cutter 11 cuts the material when it contacts the second material.

When the ultrasonic cutter 11 reaches the other edge of the second auxiliary cutter plate 9 by the transverse movement, the transverse movement is finished, the upper and lower guide air cylinders 5 lift the cutter, and the linear module 2 drives the cutter to return to the initial position.

The front conveying belt conveys the cut tyre materials away, the rear conveying belt conveys the next section of materials to the cutting position, and the cutting device prepares for the next cutting circulation action.

According to the tire molding material cutting device provided by the utility model, when the linear module 2 drives the ultrasonic cutting blade 11 to return, the rotating angle of the rotating cylinder 6 can be adjusted through the molding machine control system, so that the ultrasonic cutting blade 11 reversely rotates, and then the cutting angle is adjusted to reversely cut.

Further, be provided with photoelectric protection device 8 on the stand of support 1 both sides, in the cutting in-process in case the sizing material is not cut out smoothly, and when producing the warpage, can stop photoelectric protection device 8's light, photoelectric sensor can output signal, after make-up machine control system received the signal, can stop the lateral shifting action immediately, prevent to damage cut-off knife and sizing material.

The front and rear guide cylinders 4 may be replaced by elastic means such as tension springs that exert a tensile force on the roller 3. In addition, the projection shape of the track surface of the track backup plate 7 can be arc-shaped, and arc-shaped track cutting can be realized only by replacing the rotary cylinder 6 with a rotary motor for cooperation.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, unless otherwise indicated, the terms "upper," "lower," "left," "right," "inner," "outer," and the like are used for convenience in describing the present utility model and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the devices or elements in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The foregoing technical solution is only one embodiment of the present utility model, and various modifications and variations can be easily made by those skilled in the art based on the principles disclosed in the present utility model, and are not limited to the technical solutions described in the foregoing specific examples of the present utility model, therefore, the foregoing description is only preferred and not in any limiting sense.

Claims

1. A tyre molding material cutting device comprises a support, wherein a linear module is arranged on the support and drives an ultrasonic cutter to do reciprocating linear motion; the method is characterized in that:

the ultrasonic cutter is arranged on the rotating part through the cutter rest;

2. The tire building material cutting apparatus according to claim 1, wherein: the end head of the wheel shaft of the roller is provided with threads, and the roller is fixed on the lower end face of the push plate of the front and rear guide parts through threads.

3. The tire building material cutting apparatus according to claim 2, wherein: the auxiliary knife board is made of steel plate, nylon material is inlaid on the surface of the auxiliary knife board, and the grooves are formed in the nylon material.

4. A tire building material cutting apparatus according to any one of claims 1-3, wherein: the front and rear guide members and the rotary member employ cylinders.

5. The tire building material cutting apparatus according to claim 4, wherein: the track surface of the track backup plate is formed by intersecting two symmetrical surfaces with a certain angle, the projection shape of the track surface is a symmetrical fold line shape, and the grooves on the auxiliary knife plate are matched with the track surface.

6. The tire building material cutting apparatus according to claim 5, wherein: the auxiliary knife board comprises a first auxiliary knife board and a second auxiliary knife board which are sequentially arranged along the moving direction of the linear module, the groove of the first auxiliary knife board is in a broken line shape and is positioned below the track backup board, and the groove of the second auxiliary knife board is in a linear shape.

7. The tire building material cutting apparatus according to claim 5, wherein: the track backup plate comprises a first track backup plate and a second track backup plate which are sequentially arranged along the moving direction of the linear module, the auxiliary knife plate comprises a first auxiliary knife plate and a second auxiliary knife plate which are sequentially arranged along the moving direction of the linear module, the projection shape of the track surface of the track backup plate is a broken line shape, and the groove on the auxiliary knife plate is a broken line-shaped groove.

8. The tire building material cutting apparatus according to claim 6 or 7, wherein: the cutting device further comprises an upper guide part and a lower guide part which are fixed on the push plate of the front guide part and the rear guide part, the rotating part is fixed on the push plate of the upper guide part and the lower guide part, and the upper guide part and the lower guide part drive the ultrasonic cutting knife to move up and down.

9. The tire building material cutting apparatus of claim 8, wherein: the upper and lower guide parts adopt air cylinders.

10. The tire building material cutting apparatus according to claim 1, wherein: photoelectric protection devices are arranged on two sides of the support.