CN101474874A - Dual-purpose machine for cutting fibre cord fabric in straight or inclined method - Google Patents
Dual-purpose machine for cutting fibre cord fabric in straight or inclined method Download PDFInfo
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- CN101474874A CN101474874A CNA2009101138446A CN200910113844A CN101474874A CN 101474874 A CN101474874 A CN 101474874A CN A2009101138446 A CNA2009101138446 A CN A2009101138446A CN 200910113844 A CN200910113844 A CN 200910113844A CN 101474874 A CN101474874 A CN 101474874A
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Abstract
The invention discloses a fiber cord fabric straight and bias cutting machine. The cutting machine comprises unwinding equipment, a punching device, a main cutting machine, a fabric sending device, a splicing device and a winding device which are arranged in sequence according to working procedures, wherein the main cutting machine consists of a bias cutting machine and a straight cutting machine which are arranged in sequence on a fixed-length delivery mechanism; a bias-cutting fabric sending device, a bias-cutting splicing device and a bias-cutting winding device connected in sequence are arranged corresponding to the bias cutting machine; a straight-cutting fabric sending device, a straight-cutting splicing device, a straight-cutting adhesive tape sticking device and a straight-cutting adhesive tape sticking device connected in sequence are arranged corresponding to the straight cutting machine, wherein the cord fabric of the straight-cutting fabric sending device is collected by a holding structure which is capable of sending the cord fabric to the specific splicing position accurately at one time. The fiber cord fabric straight and bias cutting machine integrates the two cutting ways of 0 degree angle and a bevel angle in one production line, thereby realizing two functions on one machine, saving cost and reducing the occupied space of the equipment.
Description
(1) technical field under:
The present invention relates to tire manufacturing equipment, be specially a kind of dual-purpose machine for cutting fibre cord fabric in straight or inclined.
(2) background technology:
Cord Fabric Cutting Machine is mainly used in severing and the automatic joint of producing half steel radial-ply tyre carcass cord.Domestic severing mode is divided into 0 ° of straight sanction and the tapered cut dual mode at present, article one, production line can only provide a kind of severing mode, changing a kind of severing mode as need then needs to change a production line, has not only increased cost but also has enlarged demand to the space, place.
Above-mentioned Cord Fabric Cutting Machine automatic joint pass the mode that mode for cloth all adopts vacuum suction, the shortcoming of this mode is for pass the cloth action at every turn, vacuum generator all must move again, carries out picking up of cord thereby make sucker reach vacuum state.Greatly reduce the efficient of production line thus, and fault rate is very high; Vacuum suction is very high to the cord surface requirements, if produce fold or be uneven in the course of conveying of cord, adsorption effect will be greatly affected greatly, might can not inhale the situation of cloth; Vacuum suction is also damaged the cord surface easily simultaneously.
Splicing between cord action realizes by following action, and on the belt of conveying device, cord (back conveying device synchronous operation at this moment) was transported in preceding conveying device startup forward before a slice cord of vacuum absorption device after severing delivered to.It is out of service when the tail end of cord reaches the precalculated position.Back conveying device inverted running moves a bit of distance after making the cord tail end.The splicer positioning cylinder is descending, and baffle plate is pushed down cord.Second cord transports forward through preceding conveying device, treats that its head end stops to transport when being close to baffle plate, and the end that the action of joint cylinder, joint pressing plate are pushed down two cords having taken makes it to be pasted together.Each splicing action cord all will send excessive and then refund and just begin compress, and efficient is extremely low, and splicing effect neither be very desirable.
(3) summary of the invention:
At the weak point of above-mentioned various Cord Fabric Cutting Machine, the purpose of this invention is to provide a kind of not only can 0 ° straight sanction but also dual-purpose machine for cutting fibre cord fabric in straight or inclined that can arbitrarily angled tapered cut.
Can realize the dual-purpose machine for cutting fibre cord fabric in straight or inclined of above-mentioned purpose, comprise the unwinding equipment successively arranged by process sequence, thorn aperture apparatus, severing main frame, pass cloth apparatus, splicing apparatus and devices for taking-up, the severing main frame that is not both comprises tapered cut device and straight cutting device, and can use tapered cut device and straight cutting device respectively according to tapered cut and two kinds of mode of operations of straight sanction.
Described tapered cut device and the straight shared fixed length conveying device of cutting device, and on the fixed length conveying device, successively be provided with.
A kind of structure of described tapered cut device comprises tapered cut swing arm, tapered cut angular adjustment apparatus, revolution support, line slideway, tapered cut cloth-pressing device and tapered cut cut-off knife device, the tapered cut swing arm is in the upper horizontal setting of fixed length conveying device one side, the one end is connected with the tapered cut angular adjustment apparatus outside fixed length conveying device starting point, the revolution support and connection of its other end and fixed length conveying device below; Line slideway is installed along tapered cut swing arm bottom, and the tapered cut cloth-pressing device is parallel to line slideway in tapered cut swing arm bottom to be installed, and the tapered cut cut-off knife device that is driven by servo power is slidingly mounted on the line slideway.
In the said structure, the adjusting wraparound of tapered cut cut-off knife device by the tapered cut angular adjustment apparatus changeed to support and rotated, and can translation-angle satisfies the tapered cut needs of different size cord.
Be respectively the tapered cut that successively is connected and pass cloth apparatus, tapered cut splicing apparatus and tapered cut devices for taking-up with pass cloth apparatus, splicing apparatus and devices for taking-up that the tapered cut device is used, tapered cut is passed cloth apparatus, tapered cut splicing apparatus and tapered cut devices for taking-up and is located at fixed length conveying device opposite side and corresponding with the tapered cut device, and integral installation is on a tumbler, by the tumbler adjusting angle, make tapered cut pass cloth apparatus, tapered cut splicing apparatus and tapered cut devices for taking-up and tapered cut device keeping parallelism, be convenient to picking up of cord.
A kind of structure of described straight cutting device comprises straight sanction upper spider, directly cuts out lower bearing bracket, directly cut-off knife device and line slideway, bottom straight sanction lower bearing bracket is fixed at after the fixed length conveying device, line slideway is installed at the straight lower bearing bracket upper edge cord throughput direction of cutting out, the straight sanction upper spider that is driven by servo power is slidingly mounted on the line slideway, and directly the cut-off knife device is supported on fixed length conveying device top.
In the said structure, directly the cut-off knife device can move forward and backward along the cord throughput direction, and the head end of cord is at same position when guaranteeing the cord of severing different in width, and this position is the stop of straight sanction cut-off knife device reach.
Be different from vacuum absorption device and get cloth, the straight cord mode of picking up of passing cloth apparatus of cutting out adopts method of clamping among the present invention, pick up mode for cooperating clamping, need on the fixed length conveying device of the cord end of directly cutting out severing, to be provided with and lift cloth apparatus, after cord is by straight cutting device severing, lift cloth apparatus action the cord head end is upwards lifted certain distance, lift end and carry out the gripping of cord so that clamping device can arrive the cord head.
Described straight sanction is passed cloth apparatus and is comprised and pass cloth frame, movable stand, clamper and line slideway, pass the cloth frame and be located at fixed length conveying device destination county, line slideway is located at along the cord throughput direction and is passed on the cloth frame, the movable stand that is driven by servo power is slidingly mounted on the line slideway, clamper by cylinder control is arranged on the movable stand termination of fixed length conveying device, the position of clamper is corresponding to the position of lifting cloth apparatus, clamper is made up of base plate, clamping plate and promotion seat, and clamping plate are connected with hinge arrangement with the promotion seat.
Lift cloth apparatus finish lift cloth action after, the movable stand that servo power drives arrives the clamping position, clamper carries out gripping to the cord termination, the opposite spin of gripping cord rear motor, the drive clamper drags cord and moves to splicing station along line slideway, cord is transported on the splicing conveying device, finishes and pass the cloth action.
Pass the supporting splicing apparatus of cloth apparatus with straight sanction and be respectively straight sanction splicing apparatus and the straight devices for taking-up of cutting out that successively is connected with devices for taking-up, straight cut out splicing apparatus and directly cut out also be provided with straight sanction rubberizing strip device between the devices for taking-up, directly cut out splicing apparatus, directly cut out rubberizing strip device and directly cut out devices for taking-up along perpendicular to the setting of cord throughput direction.
A kind of structure of described thorn aperture apparatus be two fixedly roller add a movably licker-in, for thoroughly piercing through cord, the gap that keeps no rigidity to contact between each roller.
Advantage of the present invention:
1,0 ° of directly sanction and tapered cut that this dual-purpose machine for cutting fibre cord fabric in straight or inclined is integrated, can on a production line, realize two kinds of severing patterns, compare with the Cord Fabric Cutting Machine of the single mode of tradition, two kinds of severing modes of straight sanction that the present invention is integrated and tapered cut have been broken the yoke of traditional structure, the perfect performance of production line, the factory building occupancy of having saved cost and equipment.
2, the straight cord of passing cloth apparatus of cutting out picks up the employing clamp structure in this dual-purpose machine for cutting fibre cord fabric in straight or inclined, can be with the disposable appointment splice bits of accurately delivering to of cord, compare with vacuum suction, have simple in structure, gripping speed is fast, characteristics such as efficient height have overcome the defective that vacuum generator damages easily, have improved production efficiency greatly.
3, the cut-off knife of straight cutting device and tapered cut device moves and is servomotor and driving is with in open loop synchronously, can governing speed control cutting times, impacts little, the quick and stable of walking.
(4) description of drawings:
Fig. 1 is the structural representation of one embodiment of the present invention.
Fig. 2 is the vertical view of Fig. 1 embodiment.
Fig. 3 is the structural representation of severing main frame in Fig. 1 embodiment.
Fig. 4 is the straight structural representation of passing cloth apparatus of cutting out in Fig. 1 embodiment.
Figure number sign: 1, unwinding equipment; 2, thorn aperture apparatus; 3, severing main frame; 4, the straight sanction passed cloth apparatus; 5, directly cut out splicing apparatus; 6, directly cut out the rubberizing strip device; 7, directly cut out devices for taking-up; 8, cloth apparatus is passed in tapered cut; 9, tapered cut splicing apparatus; 10, tapered cut devices for taking-up; 11, tapered cut angular adjustment apparatus; 12, tapered cut swing arm; 13, fixed length conveying device; 14, tapered cut cloth-pressing device; 15, tapered cut cut-off knife device; 16, line slideway; 17, revolution is supported; 18, directly cut out upper spider; 19, cut-off knife device directly; 20, directly cut out lower bearing bracket; 21, lift cloth apparatus; 22, clamper; 23, cylinder; 24, movable stand; 25, pass the cloth frame.
(5) specific embodiments
With reference to each figure embodiment technical scheme of the present invention is described.
As shown in Figure 1 and Figure 2, dual-purpose machine for cutting fibre cord fabric in straight or inclined of the present invention by the unwinding equipment of successively arranging by process sequence 1, the thorn aperture apparatus 2, severing main frame 3, pass cloth apparatus, splicing apparatus and devices for taking-up, fibercord separates lining cloth and cord through unwinding equipment 1.Cord is transported to thorn aperture apparatus 2 forward, the structure of thorn aperture apparatus 2 be two fixedly roller add a movably licker-in, the gap that keeps no rigidity to contact between the licker-in can guarantee the good rate that pierces through.Cord is transported to severing main frame 3 subsequently, selects 0 ° of straight sanction and tapered cut as required.
Severing main frame 3 is made of tapered cut device and straight cutting device, and is provided with on fixed length conveying device 13 sequentially, as shown in Figure 1 and Figure 2.
Tapered cut device building block is respectively tapered cut angular adjustment apparatus 11, tapered cut swing arm 12, tapered cut cloth-pressing device 14, tapered cut cut-off knife device 15, line slideway 16 and revolution support 17, tapered cut swing arm 12 is arranged in fixed length conveying device 13 preceding half section side upper horizontal, tapered cut swing arm 12 1 ends are connected with tapered cut angular adjustment apparatus 11 outside the starting point of fixed length conveying device 13, tapered cut angular adjustment apparatus 11 is a vertical foot rest, the foot rest bottom is equipped with the roller that is driven by servo power, the other end of tapered cut swing arm 12 supports 17 with revolution and is connected, it is the vertical rotation axis on an installation ground that revolution supports 17, line slideway 16 is arranged on the bottom of tapered cut swing arm 12, the tapered cut cut-off knife device 15 that is driven by servo power is installed on the line slideway 16 in tapered cut swing arm 12 slid underneath, tapered cut cloth-pressing device 14 is parallel to the bottom that line slideway 16 is arranged on tapered cut swing arm 12, as shown in Figure 3.When the translation-angle tapered cut, the motor-driven castor of tapered cut angular adjustment apparatus 11 rotates, and driving tapered cut swing arm 12 is the fulcrum rotation with revolution support 17, translation-angle.
Straight cutting device is arranged on 13 second half sections of fixed length conveying device, building block is respectively straight sanction upper spider 18, the straight lower bearing bracket 20 of cutting out, straight cut-off knife device 19 and the line slideway 16 cut out, the straight lower bearing bracket 20 of cutting out is fixedly mounted on fixed length conveying device 13 bottoms, line slideway 16 is located on the straight sanction lower bearing bracket 20 along cord throughput direction level, the basal sliding cooperation that vertical configuration is directly cut out upper spider 18 is installed on the line slideway 16, the straight upper spider 18 of cutting out is directly lifted to fixed length conveying device 13 tops on the cut-off knife device 19, straight sanction upper spider 18 moving forward and backward by the servo power driving on line slideway 16 finished, as shown in Figure 3.
The straight cut-off knife device 19 of cutting out moves around before and after the fixed length conveyer belt, the head end that satisfies cord when the cord of severing different in width is all the time at straight stop place of cutting out 19 reaches of cut-off knife device, for guaranteeing to pass the repeatability that cloth apparatus picks up cord, also be provided with on the fixed length conveying device 13 corresponding to described stop place and lift cloth apparatus 21, as shown in Figure 3.
Pass cloth apparatus, splicing apparatus and the devices for taking-up of tapered cut device correspondence are respectively the tapered cut that is connected sequentially and pass cloth apparatus 8, tapered cut splicing apparatus 9 and tapered cut devices for taking-up 10, be the parallel cord that conveniently picks up with the tapered cut device, tapered cut is passed cloth apparatus 8, tapered cut splicing apparatus 9 and 10 integral installations of tapered cut devices for taking-up on a tumbler, tumbler can be regulated rotational angle, with tapered cut device keeping parallelism, as shown in Figure 2.
Pass cloth apparatus, splicing apparatus and the devices for taking-up of straight cutting device correspondence are respectively and are connected sequentially and the straight sanction vertical with fixed length conveying device 13 passed cloth apparatus 4, directly cut out splicing apparatus 5 and directly cut out devices for taking-up 7, and straight the sanction passed cloth apparatus 4 employing clamp structures and dragged cord among the present invention.
The straight sanction passed cloth apparatus 4 and comprised and pass cloth frame 25, movable stand 24, clamper 22, cylinder 23 and line slideway 16, pass cloth frame 25 and be located at fixed length conveying device 13 destination counties, throughput direction along cord, line slideway 16 levels are installed on passs cloth frame 25 bottoms, the movable stand 24 that is driven by servo power is slidingly mounted on the line slideway 16, clamper 22 is installed on movable stand 24 end faces of fixed length conveying device 13 1 sides by cylinder 23 levels, the height and position of clamper 22 is with to be lifted the cord termination height that cloth apparatus 21 lifts consistent, clamper 22 clampings and open action by cylinder 23 control, clamper 22 is by base plate, clamping plate and promotion seat are formed, clamping plate are connected with hinge arrangement with the promotion seat, as shown in Figure 4.
Straight cut out splicing apparatus 5 and directly cut out also be connected with straight sanction rubberizing strip device 6 between the devices for taking-up 7, as shown in Figure 2.
Select straight the sanction, cord by severing after, lift cloth apparatus 21 actions the cord head end is lifted certain distance, straight sanction is passed cloth apparatus 4 and is started working, the cord clamping is delivered on the feeding conveying belt of straight sanction splicing apparatus 5, feeding conveying belt is transported to the appointment splice bits with cord, treats down that a slice cord comes to finish automatic splicing action, repeats work subsequently.The cord that splicing is good is transported to straight sanction rubberizing strip device 6 and carries out the rubberizing step, and rubberizing is finished cord and directly cut out devices for taking-up 7 and collect.
Select tapered cut, pass cloth apparatus 8 by tapered cut after the cord severing and adopt vacuum modes to pick up cord to be delivered to tapered cut splicing apparatus 9, after the cord splicing, to batch by tapered cut devices for taking-up 10.
Claims (10)
1, dual-purpose machine for cutting fibre cord fabric in straight or inclined, comprise the unwinding equipment (1) successively arranged by process sequence, thorn aperture apparatus (2), severing main frame (3), pass cloth apparatus, splicing apparatus and devices for taking-up, it is characterized in that: severing main frame (3) comprises straight cutting device and the tapered cut device that straight sanction and two kinds of mode of operations of tapered cut are switched mutually.
2, dual-purpose machine for cutting fibre cord fabric in straight or inclined according to claim 1 is characterized in that: along the cord throughput direction, described tapered cut device and straight cutting device are gone up in fixed length conveying device (13) sequentially and are provided with.
3, dual-purpose machine for cutting fibre cord fabric in straight or inclined according to claim 2, it is characterized in that: described tapered cut device comprises tapered cut swing arm (12), tapered cut angular adjustment apparatus (11), revolution support (17), line slideway (16), tapered cut cloth-pressing device (14) and tapered cut cut-off knife device (15), tapered cut swing arm (12) is in the upper horizontal setting of fixed length conveying device (13) one sides, its end towards fixed length conveying device (13) starting point is connected with tapered cut angular adjustment apparatus (11), and its other end supports (17) with the revolution of fixed length conveying device (11) below and is connected; Line slideway (16) is installed along tapered cut swing arm (12) bottom, and tapered cut cloth-pressing device (14) is parallel to line slideway (16) in tapered cut swing arm (12) bottom to be installed, and the tapered cut cut-off knife device (15) that is driven by servo power is slidingly mounted on the line slideway (16).
4, dual-purpose machine for cutting fibre cord fabric in straight or inclined according to claim 3, it is characterized in that: be located at fixed length conveying device (13) opposite side with pass cloth apparatus, splicing apparatus and the devices for taking-up of the configuration of tapered cut device, be respectively the tapered cut that successively connects and pass cloth apparatus (8), tapered cut splicing apparatus (9) and tapered cut devices for taking-up (10), tapered cut is passed cloth apparatus (8), tapered cut splicing apparatus (9) and tapered cut devices for taking-up (10) integral installation on the tumbler that can regulate with the parallel angle of tapered cut device.
5, according to any described dual-purpose machine for cutting fibre cord fabric in straight or inclined in the claim 1～4, it is characterized in that: straight cutting device comprises straight sanction upper spider (18), the straight lower bearing bracket (20) of cutting out, straight cut-off knife device (19) and the line slideway (16) cut out, the straight lower bearing bracket (20) of cutting out is fixed at fixed length conveying device (13) bottom, line slideway (16) is installed at straight lower bearing bracket (18) the upper edge cord throughput direction of cutting out, the straight sanction upper spider (18) that is driven by servo power is slidingly mounted on the line slideway (16), and directly cut-off knife device (19) is supported on fixed length conveying device (13) top.
6, dual-purpose machine for cutting fibre cord fabric in straight or inclined according to claim 5, it is characterized in that: fixed length conveying device (13) is provided with lifts cloth apparatus (21), and the position of lifting cloth apparatus (21) is corresponding to straight stop place of cutting out cut-off knife device (19) along the reach of cord throughput direction.
7, dual-purpose machine for cutting fibre cord fabric in straight or inclined according to claim 6, it is characterized in that: pass cloth apparatus (4) for straight the sanction with the cloth apparatus of passing of straight cutting device configuration, the straight sanction passed cloth apparatus (4) and comprised and pass cloth frame (25), movable stand (24), clamper (22) and line slideway (16), pass cloth frame (25) and be located at fixed length conveying device (13) destination county, line slideway (16) is located at along the cord throughput direction and is passed on the cloth frame (25), the movable stand (24) that is driven by servo power is slidingly mounted on the line slideway (16), clamper (22) by cylinder (23) control is arranged on the movable stand (24) and towards fixed length conveying device (13), and the position of clamper (22) is corresponding to lifting cloth apparatus (21).
8, dual-purpose machine for cutting fibre cord fabric in straight or inclined according to claim 7 is characterized in that: clamper (22) comprises base plate, clamping plate and promotion seat, and clamping plate are connected with hinge arrangement with the promotion seat.
9, dual-purpose machine for cutting fibre cord fabric in straight or inclined according to claim 7, it is characterized in that: pass the supporting splicing apparatus of cloth apparatus (4) with straight sanction and be respectively straight sanction splicing apparatus (5) and the straight devices for taking-up (7) of cutting out that successively is connected with devices for taking-up, the straight sanction between splicing apparatus (5) and the straight sanction devices for taking-up (7) also is provided with straight sanction rubberizing strip device (6), directly cuts out splicing apparatus (5), directly cuts out rubberizing strip device (6) and the straight devices for taking-up (7) of cutting out along being provided with perpendicular to the cord throughput direction.
10, according to any described dual-purpose machine for cutting fibre cord fabric in straight or inclined in the claim 1～4, it is characterized in that: the thorn aperture apparatus (2) structure be two fixedly roller add a movably licker-in, keep the gap between each roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101138446A CN101474874A (en) | 2009-01-22 | 2009-01-22 | Dual-purpose machine for cutting fibre cord fabric in straight or inclined method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101138446A CN101474874A (en) | 2009-01-22 | 2009-01-22 | Dual-purpose machine for cutting fibre cord fabric in straight or inclined method |
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| Publication Number | Publication Date |
|---|---|
| CN101474874A true CN101474874A (en) | 2009-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101138446A Pending CN101474874A (en) | 2009-01-22 | 2009-01-22 | Dual-purpose machine for cutting fibre cord fabric in straight or inclined method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104369370A (en) * | 2014-10-31 | 2015-02-25 | 郭建钢 | Full-automatic adhesive cloth cutting and splicing machine |
| CN104708671A (en) * | 2015-03-09 | 2015-06-17 | 山东玲珑轮胎股份有限公司 | Cutting method, cutting device and tire side and inner liner composite part |
| CN105711123A (en) * | 2016-04-24 | 2016-06-29 | 天津赛象科技股份有限公司 | Splicing and auxiliary material delivering device for small-angle steel cord cutting machine |
| CN106313597A (en) * | 2016-08-22 | 2017-01-11 | 无锡益联机械有限公司 | Cutting and pricking device of fiber cord fabric cutting machine |
| CN110370698A (en) * | 2018-04-13 | 2019-10-25 | 三橡股份有限公司 | The preparation method of aero tyre |
| CN111746014A (en) * | 2020-06-01 | 2020-10-09 | 江阴市澳星电气有限公司 | High-quality cord fabric production line |
-
2009
- 2009-01-22 CN CNA2009101138446A patent/CN101474874A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104369370A (en) * | 2014-10-31 | 2015-02-25 | 郭建钢 | Full-automatic adhesive cloth cutting and splicing machine |
| CN104708671A (en) * | 2015-03-09 | 2015-06-17 | 山东玲珑轮胎股份有限公司 | Cutting method, cutting device and tire side and inner liner composite part |
| CN105711123A (en) * | 2016-04-24 | 2016-06-29 | 天津赛象科技股份有限公司 | Splicing and auxiliary material delivering device for small-angle steel cord cutting machine |
| CN105711123B (en) * | 2016-04-24 | 2017-12-26 | 天津赛象科技股份有限公司 | Low-angle steel cord cutters splicing auxiliary material conveying device |
| CN106313597A (en) * | 2016-08-22 | 2017-01-11 | 无锡益联机械有限公司 | Cutting and pricking device of fiber cord fabric cutting machine |
| CN110370698A (en) * | 2018-04-13 | 2019-10-25 | 三橡股份有限公司 | The preparation method of aero tyre |
| CN110370698B (en) * | 2018-04-13 | 2021-04-20 | 三橡股份有限公司 | Preparation method of airplane tire |
| CN111746014A (en) * | 2020-06-01 | 2020-10-09 | 江阴市澳星电气有限公司 | High-quality cord fabric production line |
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Open date: 20090708 |