阅读说明：本技术 一种轮胎制造加工方法 (A kind of Tire production processing method ) 是由 李岑丽 张晋源 于 2019-09-20 设计创作，主要内容包括：本发明涉及一种轮胎制造加工方法,主要包括以下步骤：密炼、胶部件准备、成型、硫化与检验,上述S1-S5中使用到的裁断设备包括工作台、圆盘刀式裁切机、定位装置与连接板,工作台上从左往右依次安装有圆盘式裁切机与定位装置,圆盘刀式裁切机与定位装置之间通过连接板相连接,圆盘刀式裁切机包括机架、液压缸与裁切刀具,定位装置包括工作板、调节螺栓、驱动机构、定位机构与联动架。本发明中涉及的裁断设备设置有与裁切刀具进行同步运动的定位机构,能够在裁切刀具对帘布进行裁断时,对帘布位置进行压紧,以消除惯性对裁切精度的影响,在裁切刀具完成一次裁切动作后,对帘布的推进进行导向,同时压平帘布上的褶皱,进一步提高裁切精度。(The present invention relates to a kind of Tire production processing methods, mainly comprise the steps that mixing, glue component prepares, molding, vulcanization and inspection, in above-mentioned S1-S5 using to cutter include workbench, disk knife guillotine, positioning device and connecting plate, disc type guillotine and positioning device are sequentially installed on workbench from left to right, it is connected between disk knife guillotine and positioning device by connecting plate, disk knife guillotine includes rack, hydraulic cylinder and cutting tool, positioning device includes working plate, adjust bolt, driving mechanism, positioning mechanism and linkage rack.Cutter involved in the present invention is provided with the positioning mechanism that movement is synchronized with cutting tool, it can be when cutting tool carries out severing to cord, cord position is compressed, to eliminate influence of the inertia to cutting precision, after cutting tool is completed once to cut movement, the propulsion of cord is oriented to, while flattening the fold on cord, further increases cutting precision.)

1. a kind of Tire production processing method, it is characterised in that: mainly comprise the steps that

S1 mixing: after mixing by carbon black, synthetic rubber, oil, additive, promotor, being processed using mixer, is made Sizing material；

S2 glue component prepares: tyre surface, sidewall, rim of the mouth and triangle is made by sizing material investment extruder and after mold forms in a. Adhesive tape semi-finished product glue component；

B. cord will be made by the raw material cord of certain density array using calender, predetermined thickness is made in compactness rubber The liner layer of width；

C. it will be wound after one layer of rubber on wire peg using extruder and tyre bead be made；

D. cord is cut into specified size using cutter, and the cord connector after severing is spliced；

E. after apex strip and tyre bead surface paint rubber cement, apex strip is bonded in tyre bead, and will be connect using nylon hammer It is hit tight at head；

S3 molding: semi-finished product glue component, liner layer, tyre bead and cord obtained in S2 are combined, by one-pass molding, two Green tire is made after secondary molding；

S4 vulcanization: green tire is installed on vulcanizer, reasonable time and suitable condition is crossed in mold back warp, to be sulfided into Tire finished product；

S5 is examined: being carried out appearance test, MACH CHK and sampling inspection to tire finished product, is guaranteed the service performance of tire finished product；

In above-mentioned S1-S5 using to cutter include workbench (1), disk knife guillotine (2), positioning device (3) with Connecting plate (4) is sequentially installed with disc type guillotine and positioning device (3) on workbench (1) from left to right, and disk knife is cut It is connected between machine (2) and positioning device (3) by connecting plate (4)；

The disk knife guillotine (2) includes that rack (21), hydraulic cylinder (22) and cutting tool (23), rack (21) are mounted on Workbench (1) right end, rack (21) lower end are equipped with hydraulic cylinder (22), and hydraulic cylinder (22) lower end is equipped with cutting tool (23), Cutting tool (23) upper end is connected with connecting plate (4) right end by bolt；

The positioning device (3) includes working plate (31), adjusts bolt (32), driving mechanism (33), positioning mechanism (34) and connection Moving frame (35), working plate (31) are located at workbench (1) upper end, by adjusting bolt between working plate (31) and workbench (1) (32) it is connected, symmetrically offers lifting groove at left and right sides of working plate (31), be equipped in lifting groove driving mechanism (33), left and right It is connected between the driving mechanism (33) being arranged symmetrically by linkage rack (35), linkage rack (35) lower end uniformly connects from left to right Have positioning mechanism (34), offers locating slot in the middle part of working plate (31), positioning mechanism (34) is located in locating slot；

The driving mechanism (33) includes rotation axis (331), transition gear (332), No.1 rack gear (333), No. two rack gears (334) With guide plate (335), it is equipped with rotation axis (331) by bearing on working plate (31) side wall, rotation axis (331) is located at lifting groove Middle part, rotation axis (331) are equipped with transition gear (332) outside, and rear and front end is symmetrically engaged with No.1 on the outside of transition gear (332) Rack gear (333), transition gear (332) inside rear and front end are symmetrically engaged with No. two rack gears (334), No.1 rack gear (333) and two Number rack gear (334) side wall passes through sliding matching mode and is connected with guide plate (335) side wall, and guide plate (335) is mounted on work Make on plate (31), and is located at No.1 rack gear (333) upper end and connecting plate (4) in the driving mechanism (33) on the right side of working plate (31) It is connected.

2. a kind of Tire production processing method according to claim 1, it is characterised in that: the positioning mechanism (34) includes Auxiliary frame (341), clamping frame (342), leading truck (343) and block (344), block (344) quantity are two, and block (344) is logical It crosses and is removably mounted in locating slot, block (344) upper end is equipped with auxiliary frame (341), and auxiliary frame (341) lower end passes through Locating slot is equipped with leading truck (343) between two auxiliary frames (341) symmetrically arranged on the left and the right by sliding matching mode, is pacified Auxiliary frame (341) left side wall on left side block (344) is connected with clamping frame (342) right side wall by sliding matching mode It connects, clamping frame (342) left side wall is mounted on the right side of adjacent positioned mechanism (34) on block (344) by sliding matching mode Auxiliary frame (341) right side wall on.

3. a kind of Tire production processing method according to claim 1, it is characterised in that: the linkage rack (35) includes one Number linkage board (351), No. two linkage boards (352), No.1 linkage block (353) and No. two linkage blocks (354), two bilateral symmetry cloth It is connected between No.1 rack gear (333) upper end set by No.1 linkage board (351), from left past in the middle part of No.1 linkage board (351) The right side is uniformly equipped with No.1 linkage block (353), and No.1 linkage block (353) quantity and clamping frame (342) quantity correspond, and one Number linkage block (353) lower end is mounted on clamping frame (342) upper end, two No. two rack gears (334) upper ends symmetrically arranged on the left and the right it Between be connected by No. two linkage boards (352), No. two linkage blocks are uniformly installed from left to right in the middle part of No. two linkage boards (352) (354), No. two linkage block (354) quantity and leading truck (343) quantity correspond, and No. two linkage block (354) lower end installations In leading truck (343) upper end.

4. a kind of Tire production processing method according to claim 2, it is characterised in that: auxiliary frame (341) lower end For L-type structure, auxiliary frame (341) lower end offers sliding groove, and sliding groove is interior to be equipped with sliding shoe by sliding matching mode (341a), the sliding shoe lower end (341a) are equipped with the axis of rolling (341b) by pin shaft, the sliding shoe upper end (341a) and spring The upper end (341c) is connected, and the lower end spring (341c) is mounted on auxiliary frame (341), and the sliding shoe top (341a) and leading truck (343) lower end is mutually close to.

5. a kind of Tire production processing method according to claim 2, it is characterised in that: leading truck (343) lower end It is connected with fixing sleeve (343a), the fixing sleeve lower end (343a) is semicircular structure, and the fixing sleeve lower end (343a) is equal by pin shaft Even be equipped with rolls steel shaft (343b), and the upper end fixing sleeve (343a) is disposed with pressing plate (343c), and pressing plate (343c) bilateral symmetry is pacified On clamping frame (342) side wall, and the lower end pressing plate (343c) is tightly attached on sliding shoe (341a).

6. a kind of Tire production processing method according to claim 2, it is characterised in that: the clamping frame (342) includes Compressor arm (342a), buffer spring (342b) and auxiliary pressing plate (342c), compressor arm (342a) are installed by sliding matching mode It is being located at by the way that between two auxiliary frames (341) in positioning mechanism (34), the lower end compressor arm (342a) offers dashpot, is delaying Jet-bedding lower end is equipped with buffer spring (342b), and the lower end buffer spring (342b) is equipped with auxiliary pressing plate (342c), assists pressing plate The lower end (342c) is provided with rubber sheet gasket.

7. a kind of Tire production processing method according to claim 4, it is characterised in that: at the buffer spring (342b) When natural elongation state, the rubber sheet gasket lower end of the auxiliary pressing plate lower end (342c) setting is concordant with auxiliary frame (341) lower end.

Technical field

The present invention relates to automobile tire manufacturing technology field, specifically a kind of Tire production processing method.

Background technique

Tire is the annular elastic rubber product that the ground connection in various vehicles or mechanically assembled rolls, can according to structure It is divided into cross ply tyre, radial.The fundamental difference of meridian tire and oblique line tire is carcass, the tire of oblique line tire Body is the casing ply that oblique line intersects, and the carcass of meridian tire is that polymer multi-layer intersects material, and top layer is several layers by steel wire The steel band cord weaved into can reduce the probability that tire is punctured by foreign matter.

Cord is also cord fabric by the cloth served as a contrast inside tire.Cord fabric is used as the skeleton of the rubber products such as tire, makes It bears immense pressure, impact load and sharp pounding, is the important materials for influencing tyre performance and service life.In the manufacture of tire In process, just includes this step of the severing of cord, is had the following problems during cord severing:

(1) when carrying out cutting movement to cord, cord conveying equipment is shut down, but under the action of inertia, cord is still It will continue to move a distance to direction of propulsion, so as to cause position is actually cut and design is cut between position there are deviation, Affect the dimensional accuracy for cutting rear cord；

(2) pneumatic positioning method being mostly used in the positioning to cord at present, being isolated between cord and conveyor surface has air layer, Frictional force between the two is reduced, it is convenient that centering is carried out to cord position, but curtain is also increased when conveying equipment is shut down Cloth continues a possibility that sliding to direction of propulsion, cord can not be fixed on designated position in time.

To solve the above-mentioned problems, the present invention provides a kind of Tire production processing methods.

Summary of the invention

To achieve the goals above, the present invention is realized using following technical scheme: a kind of Tire production processing method, main Want the following steps are included:

S1 mixing: after mixing by carbon black, synthetic rubber, oil, additive, promotor, being processed using mixer, Sizing material is made；

S2 glue component prepares: sizing material is put into extruder and after mold forms by a., be made tyre surface, sidewall, rim of the mouth and Apex strip semi-finished product glue component；

B. cord will be made by the raw material cord of certain density array using calender, compactness rubber is made predetermined The liner layer of thickness width；

C. it will be wound after one layer of rubber on wire peg using extruder and tyre bead be made；

D. cord is cut into specified size using cutter, and the cord connector after severing is spliced；

E. after apex strip and tyre bead surface paint rubber cement, apex strip is bonded in tyre bead, and uses nylon hammer Joint is hit tight；

S3 molding: semi-finished product glue component, liner layer, tyre bead and cord obtained in S2 are combined, by once at Green tire is made after type, post forming；

S4 vulcanization: green tire is installed on vulcanizer, reasonable time and suitable condition is crossed in mold back warp, thus sulphur It is melted into tire finished product；

S5 is examined: being carried out appearance test, MACH CHK and sampling inspection to tire finished product, is guaranteed the usability of tire finished product Energy；

In above-mentioned S1-S5 using to cutter include workbench, disk knife guillotine, positioning device and connection Plate is sequentially installed with disc type guillotine and positioning device, disk knife guillotine and positioning device on workbench from left to right Between be connected by connecting plate；

The disk knife guillotine includes rack, hydraulic cylinder and cutting tool, and rack is mounted on workbench right end, rack Lower end is equipped with hydraulic cylinder, and hydraulic cylinder lower end is equipped with cutting tool, and cutting tool upper end passes through bolt phase with connecting plate right end Connection；Linear motion up and down is carried out by Driven by Hydraulic Cylinder cutting tool, to achieve the purpose that cut cord.

The positioning device includes that working plate, adjusting bolt, driving mechanism, positioning mechanism and linkage rack, working plate are located at Workbench upper end is connected between working plate and workbench by adjusting bolt, and lifting is symmetrically offered at left and right sides of working plate Slot is equipped with driving mechanism in lifting groove, is connected between driving mechanism symmetrically arranged on the left and the right by linkage rack, under linkage rack End is uniformly connected with positioning mechanism from left to right, offers locating slot in the middle part of working plate, positioning mechanism is located in locating slot；Pass through Rotation adjusts bolt and working plate height is adjusted, so that when the cord to different-thickness is processed, under positioning mechanism End can be mutually close to cord upper end, while disk knife guillotine carries out cutting movement, in connecting plate and linkage rack Connection function under, the contact condition of positioning mechanism and cord is adjusted in driving mechanism, so that in cutting tool and cord When contact, positioning mechanism compresses cord, after the conveying equipment instantaneous stop for avoiding push cord, under the action of inertia Cord position shifts, and after cutting tool completes a cutting action, is adjusted to be in rolling contact between positioning mechanism and cord Mode facilitates cord to continue to promote.

The driving mechanism includes rotation axis, transition gear, No.1 rack gear, No. two rack gears and guide plate, working plate side wall Upper to be equipped with rotation axis by bearing, rotation axis is located at lifting groove middle part, and rotation axis is equipped with transition gear outside, outside transition gear Side rear and front end is symmetrically engaged with No.1 rack gear, and rear and front end is symmetrically engaged with No. two rack gears, No.1 rack gear on the inside of transition gear Pass through sliding matching mode with No. two rack gear side walls to be connected with guide plate side wall, guide plate is mounted on working plate, and position The No.1 upper end of the rack in driving mechanism on the right side of the working plate is connected with connecting plate；Disk knife guillotine is cut When, drive No.1 rack gear to move downward, under the transmission effect of transition gear, No. two rack gears move upwards simultaneously, so that positioning Sliding friction is switched to by rolling friction between mechanism and cord, cord is avoided to continue to promote to the right after conveying equipment shutdown, Effectively reduce inertia bring error.

Preferably, the positioning mechanism includes auxiliary frame, clamping frame, leading truck and block, and block quantity is two, and block is logical It crosses and is removably mounted in locating slot, block upper end is equipped with auxiliary frame, and auxiliary frame lower end passes through locating slot, and two or so Leading truck is equipped with by sliding matching mode between the auxiliary frame being arranged symmetrically, is mounted on the left of the auxiliary frame on the block of left side Wall is connected with clamping frame right side wall by sliding matching mode, and clamping frame left side wall is mounted on by sliding matching mode On auxiliary frame right side wall on the right side of adjacent positioned mechanism on block；Clamping frame, leading truck can press cord to alternative expression Tightly, when clamping frame is mutually close to cord, cord is difficult to continue to move right, when leading truck is mutually close to cord, cord energy Frame is enough oppositely oriented to move right, leading truck plays guiding role to the movement of cord, and can flatten the fold on cord, Guarantee cutting precision.

Preferably, the linkage rack includes No.1 linkage board, No. two linkage boards, No.1 linkage block and No. two linkage blocks, and two It is connected between a No.1 upper end of the rack symmetrically arranged on the left and the right by No.1 linkage board, it is equal from left to right in the middle part of No.1 linkage board Even to be equipped with No.1 linkage block, No.1 linkage number of blocks and clamping frame quantity correspond, and No.1 linkage block lower end is mounted on Clamping frame upper end is connected between two No. two upper end of the rack symmetrically arranged on the left and the right by No. two linkage boards, No. two linkage boards Middle part is uniformly equipped with No. two linkage blocks from left to right, and No. two linkage numbers of blocks and leading truck quantity correspond, and No. two connection Motion block lower end is mounted on leading truck upper end；Under the connection function of linkage rack, positioning mechanism can be synchronized with driving mechanism Adjustment.

Preferably, the auxiliary frame lower end is L-type structure, and auxiliary frame lower end offers sliding groove, passes through cunning in sliding groove Dynamic fit system is equipped with sliding shoe, and sliding shoe lower end is equipped with the axis of rolling, sliding shoe upper end and spring upper end phase by pin shaft Connection, lower spring end is mounted on auxiliary frame, and sliding shoe top is mutually close to leading truck lower end；When leading truck moves down When, sliding shoe is enabled the axis of rolling to expose outside sliding groove by downward extruding force, to reduce cord and auxiliary frame lower end Frictional force facilitates cord to promote to the right, when leading truck is move upwardly until that its lower end is no longer in contact with sliding shoe upper end, In Under the elastic force effect of spring, sliding shoe is moved up, and drives the axis of rolling to enter in sliding groove, rubs between auxiliary frame and cord at this time It wipes power to increase, convenient for positioning cord.

Preferably, the leading truck lower end is connected with fixing sleeve, and fixing sleeve lower end is semicircular structure, and fixing sleeve lower end Rolling steel shaft is uniformly installed by pin shaft, fixed set upper side is disposed with pressing plate, and pressing plate is left and right symmetrically arranged in clamping frame side wall On, and pressing plate lower end is tightly attached on sliding shoe；Due to being attached with sizing material on cord, after leading truck is longer using the time, A large amount of rubber will be stained in steel shaft by rolling, its normal rotation is caused to be affected, at this time can be by fixing sleeve under leading truck End removes and is cleaned.

Preferably, the clamping frame includes that compressor arm, buffer spring and auxiliary pressing plate, compressor arm pass through sliding matching mode It is mounted on by the way that between two auxiliary frames in positioning mechanism, compressor arm lower end offers dashpot, dashpot lower end peace Equipped with buffer spring, buffer spring lower end is equipped with auxiliary pressing plate, and auxiliary pressing plate lower end is provided with rubber sheet gasket；When No.1 rack gear It is auxiliary under the elastic force of buffer spring when compressor arm lower end is not in contact with cord upper end also when compressor arm being driven to move downward Pressing aid plate can generate certain pressing force to cord upper end, to play the role of Primary Location.

Preferably, when the buffer spring is in nature elongation state, the rubber sheet gasket lower end of auxiliary pressing plate lower end setting It is concordant with auxiliary frame lower end.

The beneficial effects of the present invention are:

1. a kind of Tire production processing method provided by the invention, the cutter being directed to is provided with and cutting tool The positioning mechanism of movement is synchronized, cord position can be compressed, when cutting tool carries out severing to cord to disappear Influence except inertia to cutting precision is oriented to the propulsion of cord, simultaneously after cutting tool is completed once to cut movement The fold on cord is flattened, cutting precision is further increased；

2. the positioning device that the present invention designs, while disk knife guillotine carries out cutting movement, driving mechanism pair The contact condition of positioning mechanism and cord is adjusted, so that positioning mechanism compresses cord, avoids the existing defeated of push cord After sending equipment instantaneous stop, cord position shifts under the action of inertia, fixed after cutting tool completes a cutting action It is adjusted to be in rolling contact mode therewith between position mechanism and cord, cord is facilitated to continue to promote；

3. the clamping frame that the present invention designs, when No.1 rack drives compressor arm moves downward, compressor arm lower end also not When being in contact with cord upper end, under the elastic force of buffer spring, auxiliary pressing plate can generate certain pressing force to cord upper end, To play the role of Primary Location.

Detailed description of the invention

Present invention will be further explained below with reference to the attached drawings and examples.

Fig. 1 is work step figure of the invention；

Fig. 2 is the structural schematic diagram of cutter of the present invention；

Fig. 3 is the structural schematic diagram between workbench of the present invention and positioning device；

Fig. 4 is the N of Fig. 2 of the present invention to partial enlarged view.

Specific embodiment

The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims Implement with the multitude of different ways of covering.

As shown in fig. 1 to fig. 4, a kind of Tire production processing method, mainly comprises the steps that

S1 mixing: after mixing by carbon black, synthetic rubber, oil, additive, promotor, being processed using mixer, Sizing material is made；

S2 glue component prepares: sizing material is put into extruder and after mold forms by a., be made tyre surface, sidewall, rim of the mouth and Apex strip semi-finished product glue component；

B. cord will be made by the raw material cord of certain density array using calender, compactness rubber is made predetermined The liner layer of thickness width；

C. it will be wound after one layer of rubber on wire peg using extruder and tyre bead be made；

D. cord is cut into specified size using cutter, and the cord connector after severing is spliced；

E. after apex strip and tyre bead surface paint rubber cement, apex strip is bonded in tyre bead, and uses nylon hammer Joint is hit tight；

S3 molding: semi-finished product glue component, liner layer, tyre bead and cord obtained in S2 are combined, by once at Green tire is made after type, post forming；

S4 vulcanization: green tire is installed on vulcanizer, reasonable time and suitable condition is crossed in mold back warp, thus sulphur It is melted into tire finished product；

S5 is examined: being carried out appearance test, MACH CHK and sampling inspection to tire finished product, is guaranteed the usability of tire finished product Energy；

In above-mentioned S1-S5 using to cutter include workbench 1, disk knife guillotine 2, positioning device 3 and even Fishplate bar 4, is sequentially installed with disc type guillotine and positioning device 3 on workbench 1 from left to right, disk knife guillotine 2 and fixed It is connected between the device 3 of position by connecting plate 4；

The disk knife guillotine 2 includes rack 21, hydraulic cylinder 22 and cutting tool 23, and rack 21 is mounted on workbench 1 right end, 21 lower end of rack are equipped with hydraulic cylinder 22, and 22 lower end of hydraulic cylinder is equipped with cutting tool 23,23 upper end of cutting tool with 4 right end of connecting plate is connected by bolt；Cutting tool 23 is driven move along a straight line up and down by hydraulic cylinder 22, to reach pair The purpose that cord is cut.

The positioning device 3 includes working plate 31, adjusts bolt 32, driving mechanism 33, positioning mechanism 34 and linkage rack 35, Working plate 31 is located at 1 upper end of workbench, is connected between working plate 31 and workbench 1 by adjusting bolt 32, and working plate 31 is left Right two sides symmetrically offer lifting groove, are equipped with driving mechanism 33 in lifting groove, between driving mechanism 33 symmetrically arranged on the left and the right It is connected by linkage rack 35,35 lower end of linkage rack is uniformly connected with positioning mechanism 34 from left to right, opens up in the middle part of working plate 31 There is locating slot, positioning mechanism 34 is located in locating slot；Bolt 32 is adjusted by rotation 31 height of working plate is adjusted, so that When the cord to different-thickness is processed, 34 lower end of positioning mechanism can be mutually close to cord upper end, in disk knife While guillotine 2 carries out cutting movement, under the connection function of connecting plate 4 and linkage rack 35, driving mechanism 33 is to localization machine Structure 34 and the contact condition of cord are adjusted so that when cutting tool 23 and cord contact, positioning mechanism 34 to cord into Row compresses, and after the existing conveying equipment instantaneous stop for avoiding push cord, cord position shifts under the action of inertia, cuts out After cutter 23 completes a cutting action, it is adjusted to be in rolling contact mode between positioning mechanism 34 and cord, facilitates cord Continue to promote.

The driving mechanism 33 includes rotation axis 331, transition gear 332,333, No. two rack gears 334 of No.1 rack gear and guiding Plate 335 is equipped with rotation axis 331 by bearing on 31 side wall of working plate, and rotation axis 331 is located in the middle part of lifting groove, rotation axis 331 Transition gear 332 is installed outside, 332 outside rear and front end of transition gear is symmetrically engaged with No.1 rack gear 333, transition gear 332 Inside rear and front end is symmetrically engaged with No. two rack gears 334, and No.1 rack gear 333 passes through with No. two 334 side walls of rack gear to be slidably matched Mode is connected with 335 side wall of guide plate, and guide plate 335 is mounted on working plate 31, and is located at the driving on 31 right side of working plate 333 upper end of No.1 rack gear in mechanism 33 is connected with connecting plate 4；When disk knife guillotine 2 is cut, No.1 tooth is driven Item 333 moves downward, and under the transmission effect of transition gear 332, No. two rack gears 334 move upwards simultaneously, so that positioning mechanism Sliding friction is switched to by rolling friction between 34 and cord, avoids cord from continuing to promote to the right after conveying equipment shutdown, has Effect reduces inertia bring error.

The positioning mechanism 34 includes auxiliary frame 341, clamping frame 342, leading truck 343 and block 344,344 quantity of block It is two, for block 344 by being removably mounted in locating slot, 344 upper end of block is equipped with auxiliary frame 341, auxiliary frame 341 Lower end is equipped with leading truck by sliding matching mode between locating slot, two auxiliary frames 341 symmetrically arranged on the left and the right 343,341 left side wall of auxiliary frame being mounted on the block 344 of left side is connected with 342 right side wall of clamping frame by sliding matching mode It connects, 342 left side wall of clamping frame is mounted on the auxiliary on 34 right side block 344 of adjacent positioned mechanism by sliding matching mode On 341 right side wall of frame；Clamping frame 342, leading truck 343 can compress cord to alternative expression, when clamping frame 342 and cord When being mutually close to, cord is difficult to continue to move right, and when leading truck 343 is mutually close to cord, cord can be oppositely oriented frame 343 It moves right, leading truck 343 plays guiding role to the movement of cord, and can flatten the fold on cord, guarantees to cut Precision.

The linkage rack 35 includes 351, No. two linkage boards 352 of No.1 linkage board, No.1 linkage block 353 and No. two linkage blocks 354, it is connected between two 333 upper ends of No.1 rack gear symmetrically arranged on the left and the right by No.1 linkage board 351, No.1 linkage board 351 middle parts are uniformly equipped with No.1 linkage block 353 from left to right, and 353 quantity of No.1 linkage block and 342 quantity of clamping frame one are a pair of Answer, and 353 lower end of No.1 linkage block is mounted on 342 upper end of clamping frame, two 334 upper ends of No. two rack gears symmetrically arranged on the left and the right it Between be connected by No. two linkage boards 352, No. two 352 middle parts of linkage boards are uniformly equipped with No. two linkage blocks 354 from left to right, two Number 354 quantity of linkage block and 343 quantity of leading truck correspond, and No. two 354 lower ends of linkage block are mounted on leading truck 343 End；Under the connection function of linkage rack 35, positioning mechanism 34 can synchronize adjustment with driving mechanism 33.

341 lower end of auxiliary frame is L-type structure, and 341 lower end of auxiliary frame offers sliding groove, passes through sliding in sliding groove Fit system is equipped with sliding shoe 341a, and the lower end sliding shoe 341a is equipped with axis of rolling 341b by pin shaft, on sliding shoe 341a End is connected with the upper end spring 341c, and the lower end spring 341c is mounted on auxiliary frame 341, and the top sliding shoe 341a and leading truck Mutually it is close to 343 lower ends；When leading truck 343 moves down, sliding shoe 341a is by downward extruding force, so that axis of rolling 341b It can expose outside sliding groove, to reduce the frictional force of cord Yu 341 lower end of auxiliary frame, facilitate cord to promote to the right, work as leading truck 343 when being move upwardly until that its lower end is no longer in contact with the upper end sliding shoe 341a, under the elastic force effect of spring 341c, sliding Block 341a is moved up, and axis of rolling 341b is driven to enter in sliding groove, and frictional force increases between auxiliary frame 341 and cord at this time, Convenient for being positioned to cord.

343 lower end of leading truck is connected with fixing sleeve 343a, and the lower end fixing sleeve 343a is semicircular structure, and fixing sleeve The lower end 343a is uniformly equipped with by pin shaft and rolls steel shaft 343b, and the upper end fixing sleeve 343a is disposed with pressing plate 343c, pressing plate 343c It is left and right symmetrically arranged on 342 side wall of clamping frame, and the lower end pressing plate 343c is tightly attached on sliding shoe 341a；Due to adhering on cord There is sizing material, therefore after leading truck 343 is longer using the time, a large amount of rubber will be stained on steel shaft 343b by rolling, and lead to it just Often rotation is affected, and can fixing sleeve 343a be removed and be cleaned from 343 lower end of leading truck at this time.

The clamping frame 342 includes compressor arm 342a, buffer spring 342b and pressing plate 342c, compressor arm 342a is assisted to pass through Sliding matching mode is mounted on by the way that between two auxiliary frames 341 in positioning mechanism 34, the lower end compressor arm 342a is opened up There is dashpot, dashpot lower end is equipped with buffer spring 342b, and the lower end buffer spring 342b is equipped with auxiliary pressing plate 342c, auxiliary The lower end pressing plate 342c is provided with rubber sheet gasket, and when buffer spring 342b is in nature elongation state, the auxiliary lower end pressing plate 342c is set The rubber sheet gasket lower end set is concordant with 341 lower end of auxiliary frame；When No.1 rack gear 333 drives compressor arm 342a to move downward, In When the lower end compressor arm 342a is not in contact with cord upper end also, under the elastic force of buffer spring 342b, auxiliary pressing plate 342c can Certain pressing force is generated, to cord upper end to play the role of Primary Location.

The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should Understand, the present invention is not limited to the above embodiments, and only illustrating for the description in above embodiments and description is of the invention Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these change and change Into all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent It defines.