A cord calendering device for tire production

Abstract

The present invention relates to the field of tire cord calendering technology, specifically to a cord calendering device for tire production, including a first calendering frame and a second calendering frame, wherein the first calendering frame and the second calendering frame have the same structure, and the first calendering frame and the second calendering frame are in opposite directions, and the end of the second calendering frame away from the first calendering frame is fixedly connected to a first feed frame, and the end of the second calendering frame close to the first calendering frame is fixedly connected to a second feed frame. The present invention, through the provision of the first calendering frame, the second calendering frame, the limiting side frame, the limiting bottom frame and the calendering rubber pad, can enable the equipment to perform adaptive calendering operations on both sides and the center segment of the cord during tire production. In actual use, the staff first puts the tire cord to be calendered into the interior of the second calendering frame, then passes it into the interior of the first calendering frame, and finally passes it out for collection. At this time, the first calendering frame and the second calendering frame have the same structure.

Description

Technical Field

[0001] The invention relates to the technical field of tire cord calendering, in particular to a cord calendering device used for tire production. Background Art

[0002] Tires are ground-contacting, rolling, annular elastic rubber products installed on various vehicles or machinery. They are usually installed on metal rims and can support the vehicle body, cushion external impacts, achieve contact with the road surface and ensure the vehicle's driving performance. Tires are often used under complex and harsh conditions. They are subjected to various deformations, loads, forces, and high and low temperature effects when driving. Therefore, they must have high load-bearing performance, traction performance, and cushioning performance. At the same time, they are also required to have high wear resistance and flexibility resistance, as well as low rolling resistance and heat generation. The calender is composed of two or more rollers, which are arranged according to the heating method and can be divided into cold pressing and hot pressing. Cold pressing is suitable for materials that do not require heating, such as graphite. Film, graphite sheet, absorbing material, shielding material, magnetic material, non-ferrous metal material, etc. Tire cord fabric is the skeleton material of the tire, and there are two types: weft cord fabric and non-weft cord fabric. Tire cord fabric is the skeleton material of the tire, and there are two types: weft cord fabric and non-weft cord fabric. The former is usually woven with thick and high-strength cords as warp threads and thin and low-strength cords as weft threads. The warp threads bear almost all the load of the carcass, and the weft threads are only used to connect the warp threads to make them evenly arranged. The latter is a cord fabric without weft threads. The main requirements for the cord fabric are high strength, fatigue resistance, low elongation, good heat resistance and stability, and good adhesion to rubber. The fiber materials for the cord include cotton, nylon, polyester, rayon and steel wire.

[0003] For example, the patent document with the announcement number CN 117124523 A discloses a cord calender for tire production, which relates to the technical field of calendering processing of tire cords, including a general assembly frame, which is a horizontally arranged rectangular frame, and the general assembly frame is provided with a cord guide assembly, a flat plate crimping assembly, a traction assembly, a drying assembly, a calendering assembly, a cooling assembly and a winding assembly in sequence, and the traction assembly is symmetrically provided with two groups, and the two groups of traction assemblies are respectively arranged between the flat plate crimping assembly and the drying assembly and between the calendering assembly and the cooling assembly. The present invention solves the problems in the calendering equipment in the traditional technology that the cord is too tight or loose to affect the calendering quality, the inconvenience of connecting multiple sections of cords leads to poor continuity of processing feed, and the difficulty of realizing the double-sided calendering of the cord when calendering the tire cord.

[0004] However, when this structure is used for calendering the tire cord in tire production, it is often only able to perform simple horizontal conveying and calendering operations of the tire cord. However, in the subsequent production process of the tire, it is often necessary to perform arc-shaped bulge operations on both sides of the tire cord along with the tire ring, and the two sides are in a U-shaped structure relative to the center. At this time, since the equipment can only perform overall horizontal calendering production of the tire cord, the ductility of the arc-shaped calendering structure on both sides of the tire cord cannot perform a more adaptive fitting operation for tire production. The calendering structure on both sides that is the same as the center will affect the final production quality of the tire. At the same time, the equipment cannot perform more efficient up and down alternating calendering and force application operations on both sides of the tire cord, and cannot ensure the limit of calendering on both sides, and cannot meet daily use needs. Therefore, it is urgent to design a cord calendering equipment for tire production to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a cord calendering equipment for tire production, so as to solve the problem that the existing structure proposed in the above background technology can only perform simple horizontal conveying and calendering operations of the tire cord when used for cord calendering in tire production. However, in the subsequent production process of the tire, it is often necessary to perform arc-shaped bulge operations on both sides of the tire cord along with the tire ring, and the two sides are in a U-shaped structure relative to the center. At this time, since the equipment can only perform overall horizontal calendering production of the tire cord, the ductility of the arc-shaped calendering structure on both sides of the tire cord cannot perform more adaptive fitting operations for tire production. The calendering structure on both sides that is the same as the center will affect the final production quality of the tire. At the same time, the equipment cannot perform more efficient up and down alternating calendering and force application operations on both sides of the tire cord, and cannot ensure the limit of calendering on both sides, and cannot meet the daily use needs.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cord calendering device for tire production, comprising a first calendering frame and a second calendering frame, the first calendering frame and the second calendering frame having the same structure, the first calendering frame and the second calendering frame having opposite directions, the end of the second calendering frame away from the first calendering frame being fixedly connected to a first feed frame, the end of the second calendering frame close to the first calendering frame being fixedly connected to a second feed frame, the end of the first calendering frame away from the second calendering frame being fixedly connected to a discharge frame, both sides of the first calendering frame being fixedly connected to a limited side frame, the bottom of the first calendering frame being fixedly connected to a limited bottom frame, the side of the limited side frame being fixedly connected to a contraction side frame, the bottom end of the limited bottom frame being fixedly connected to a conveying bottom frame, and the inner wall of the first calendering frame being provided with a calendering rubber pad;

[0007] A first pressing frame and a second pressing frame, the first calendering frame is provided with the first pressing frame on the surface, the second calendering frame is provided with the second pressing frame at the bottom, the bottom end of the first pressing frame is provided with a main calendering airbag, the bottom end of the main calendering airbag is fixedly connected with a main calendering seat, calendering rollers are evenly arranged on the bottom of the main calendering seat, side calendering seats are provided on both sides of the main calendering seat, and calendering balls are evenly arranged on the sides of the side calendering seats.

[0008] Preferably, a side calendering airbag is arranged on the back of the side calendering seat, and movable side grooves are opened on both sides of the main calendering seat, and the movable side grooves are adapted to the side calendering seat, the calendering ball and the side calendering airbag.

[0009] Preferably, an air control pump is provided at the top center of the first pressing frame, and mounting seats are provided at both ends of the top of the first pressing frame.

[0010] Preferably, a first contraction groove is opened inside the conveying chassis, a first contraction spring is arranged inside the first contraction groove, a first contraction seat is arranged at one end of the first contraction spring, and a first protective pad is arranged on the surface of the first contraction seat.

[0011] Preferably, a second contraction groove is opened inside the contraction side frame, a second contraction spring is arranged inside the second contraction groove, one end of the second contraction spring is fixedly connected to a second contraction seat, and a second protective pad is arranged on the surface of the second contraction seat.

[0012] Preferably, a calendering groove is provided inside the first calendering frame, and the calendering groove is matched with the calendering rubber pad.

[0013] Preferably, first pressing airbags are provided at both upper and lower ends of the discharge rack, and a pressing plate is provided between the first pressing airbags.

[0014] Preferably, the inner bottom wall of the second material conveyor rack is provided with a first arc pressing die frame, the inner top wall of the second material conveyor rack is provided with a second pressing air bag, the inner bottom wall of the first material conveyor rack is provided with a third pressing air bag, and the inner top wall of the first material conveyor rack is provided with a second arc pressing die frame.

[0015] Preferably, the bottom wall of the first calendering frame and the top of the first feeding frame are provided with main limiting grooves through a limiting bottom frame, and side limiting grooves are provided on both sides of the first calendering frame and the second calendering frame.

[0016] Preferably, the first calendering frame and the second calendering frame are provided with butt joint grooves inside, a main butt joint groove is provided at the center of the butt joint groove, and side butt joint grooves are provided at both sides of the butt joint groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The cord calendering equipment for tire production can enable the equipment to perform adaptive calendering operations on both sides and the center segment of the cord during tire production by arranging a first calendering frame, a second calendering frame, a limiting side frame, a limiting bottom frame, a calendering rubber pad, a first top pressing frame, a second top pressing frame, a main calendering airbag, a main calendering seat, a calendering roller, a side calendering seat, a calendering ball, a side calendering airbag, a movable side groove, an air control pump, a mounting seat, a calendering groove, a docking groove, a main connecting groove and a side connecting groove. In actual use, the staff first puts the tire cord to be calendered into the second calendering frame, then inserts it into the first calendering frame, and finally passes it out for collection. At this time, the first calendering frame and the second calendering frame have the same structure but opposite directions, and can respectively perform adaptive calendering operations on the upper and lower surfaces of the tire cord. At this time, the first top pressing frame and the second top pressing frame can be started synchronously to control the main calendering airbag to drive the air control pump at the center of the surface. The calendering roller of the main calendering seat at one end is adaptively connected to the center of the upper and lower surfaces of the tire cord inside the first calendering frame and the second calendering frame, and the side calendering airbags inside the movable side grooves on both sides of the main calendering seat are ventilated and retracted, and can also adaptively drive the side calendering seat and the calendering ball at one end to connect to the two sides of the tire cord, thereby realizing different calendering operations on the center and both sides of the tire cord, so that the tire cord on both sides has better ductility in an arc state relative to the center, and better completes the calendering production operation of the tire cord. At the same time, the tire cord can change its upper and lower arc shape according to the shape of the calendering grooves inside the first calendering frame and the second calendering frame. The calendering rubber pad inside the calendering groove, in conjunction with the design of the central main connecting groove and the side connecting grooves on both sides of the limiting side frame and the limiting bottom frame, performs synchronous adaptive calendering processing up and down, and more efficiently completes the cord calendering operation for tire production, meets the subsequent arc requirements of the edges of the tire cord on both sides, and reflects the practicality of the equipment design.

[0019] The cord calendering equipment for tire production further improves the overall use effect of the equipment by arranging a first calendering frame, a second calendering frame, a first material feeding frame, a second material feeding frame, a discharging frame, a shrinking side frame, a conveying bottom frame, a calendering rubber pad, a first shrinking spring, a first shrinking seat, a first protective pad, a second shrinking groove, a second shrinking spring, a second shrinking seat, a second protective pad, a calendering groove, a first pressing airbag, a pressing plate, a first arc pressing mold frame, a second pressing airbag, a third pressing airbag, a second arc pressing mold frame, a main limiting groove and a side limiting groove. During use, when the tire cord inside the first calendering frame and the second calendering frame is adaptively calendered on the calendering rubber pad through the main calendering seat, calendering roller, side calendering seat and calendering ball, the inner wall of the contraction side frame on both sides of the limiting side frame can be adaptively contracted inside the second contraction groove by the second contraction spring, and the second protective pad of the second contraction seat at one end thereof is adaptively limited with the side calendering seats and calendering balls on both sides, and the conveying chassis at the bottom end of the limiting chassis can also have the same structure, through the contraction of the first contraction spring inside the first contraction groove, The first protective pad of the first shrinkage seat at one end can also be adapted and limited with the main calendering seat and the bottom of the calendering roller, so as to ensure that the calendering rubber pad is inside the calendering groove. At the same time, in the daily process of passing the tire cord from the second calendering frame into the first calendering frame, the tire cord can be adapted and inserted and limited from the inside of the first feed frame, the second feed frame and the discharge frame in turn. The third pressing air bag on the inner bottom wall of the first feed frame connects the tire cord to the inner wall of the second arc pressing die frame, so that when it enters the second calendering frame, the bottom remains in an arc state, and the second feed frame The internal structure of the material rack is opposite. The second pressing air bag on the inner top wall is used to connect the tire cord to the inside of the first arc pressing mold frame, so that when it enters the first calendering frame, the top part maintains an arc state, and the first top pressing frame and the second top pressing frame inside the first calendering frame and the second calendering frame are adaptively adjusted to the calendering shape. Finally, the first upper and lower pressing air bags and pressing plates inside the discharging rack are used to level and discharge the material, thereby achieving a more suitable calendering auxiliary operation for the tire cord, improving the final calendering quality, and reflecting the comprehensiveness of the equipment design. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention;

[0021] Figure 2 It is an overall schematic diagram of the first calendering frame structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the connection between the first calendering frame and the second calendering frame structure of the present invention;

[0023] Figure 4 It is an overall schematic diagram of the first top pressure frame structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the retractable side frame structure of the present invention;

[0025] Figure 6 It is an overall schematic diagram of the conveying chassis structure of the present invention;

[0026] Figure 7 It is an overall schematic diagram of the first material conveying rack and the second material conveying rack structure of the present invention;

[0027] Figure 8 For the present invention Figure 2 A magnified schematic diagram of the structure at center A;

[0028] Fig. 9 For the present invention Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0029] Fig.10 For the present invention Figure 4 A magnified schematic diagram of the structure at center C.

[0030] In the figure: 1, first calendering frame; 2, second calendering frame; 3, first feeding frame; 4, second feeding frame; 5, discharging frame; 6, limiting side frame; 7, limiting bottom frame; 8, shrinking side frame; 9, conveying bottom frame; 10, calendering rubber pad; 11, first top pressing frame; 12, second top pressing frame; 13, main calendering airbag; 14, main calendering seat; 15, calendering roller; 16, side calendering seat; 17, calendering ball; 18, side calendering airbag; 19, movable side groove; 20, air control pump; 21, mounting seat; 22, first A contraction groove; 23, a first contraction spring; 24, a first contraction seat; 25, a first protective pad; 26, a second contraction groove; 27, a second contraction spring; 28, a second contraction seat; 29, a second protective pad; 30, a calendering groove; 31, a first pressing airbag; 32, a pressing plate; 33, a first arc pressing mold frame; 34, a second pressing airbag; 35, a third pressing airbag; 36, a second arc pressing mold frame; 37, a main limiting groove; 38, a side limiting groove; 39, a docking groove; 40, a main connecting groove; 41, a side connecting groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 10 , an embodiment provided by the present invention:

[0033] A tire cord calendering device for tire production includes a first calendering frame 1 and a second calendering frame 2. The first calendering frame 1 and the second calendering frame 2 have the same structure. The first calendering frame 1 and the second calendering frame 2 are in opposite directions. The end of the second calendering frame 2 away from the first calendering frame 1 is fixedly connected to a first feed frame 3, the end of the second calendering frame 2 close to the first calendering frame 1 is fixedly connected to a second feed frame 4, the end of the first calendering frame 1 away from the second calendering frame 2 is fixedly connected to a discharge frame 5, both sides of the first calendering frame 1 are fixedly connected to a limited position bottom frame 7, and the side of the limited position side frame 6 is fixedly connected to the limited position bottom frame 7. The shrink side frame 8 is fixedly connected, the bottom end of the limiting bottom frame 7 is fixedly connected to the conveying bottom frame 9, the inner wall of the first calendering frame 1 is provided with a calendering rubber pad 10, the inside of the first calendering frame 1 is provided with a calendering groove 30, the calendering groove 30 is adapted to the calendering rubber pad 10, the upper and lower ends of the inner part of the discharge frame 5 are provided with a first pressing air bag 31, a pressing plate 32 is provided between the first pressing air bags 31, the inner bottom wall of the second feeding frame 4 is provided with a first arc pressing mold frame 33, the inner top wall of the second feeding frame 4 is provided with a second pressing air bag 34, the inner bottom wall of the first feeding frame 3 is provided with a third pressing air bag 35, the inner top wall of the first feeding frame 3 is provided with a third pressing air bag 35, and the inner top wall of the first feeding frame 3 is provided with a third pressing air bag 35. The wall is provided with a second arc pressing die frame 36, the bottom wall of the first calendering frame 1 and the top of the first feeding frame 3 are provided with a main limiting groove 37 through a limiting bottom frame 7, the first calendering frame 1 and the second calendering frame 2 are provided with side limiting grooves 38 on both sides, the first calendering frame 1 and the second calendering frame 2 are provided with a docking groove 39, the center of the docking groove 39 is provided with a main connecting groove 40, and the two sides of the docking groove 39 are provided with side connecting grooves 41, when the tire cord inside the first calendering frame 1 and the second calendering frame 2 is subjected to adaptive calendering treatment on the calendering rubber pad 10 through the main calendering seat 14, the calendering roller 15, the side calendering seat 16 and the calendering ball 17 At this time, the inner walls of the shrinkage side frames 8 on both sides of the limiting side frames 6 can be adaptively shrunk by the second shrinkage spring 27 inside the second shrinkage groove 26, and the second protective pad 29 of the second shrinkage seat 28 at one end thereof can be adaptively limited with the side calendering seats 16 and the calendering balls 17 on both sides, and the conveying base frame 9 at the bottom end of the limiting base frame 7 can also have the same structure. Through the contraction of the first shrinkage spring 23 inside the first shrinkage groove 22, the first protective pad 25 of the first shrinkage seat 24 at one end thereof can also be adaptively limited with the main calendering seat 14 and the bottom of the calendering roller 15, thereby ensuring that the calendering rubber pad 10 is inside the calendering groove 30.

[0034] The first pressing frame 11 and the second pressing frame 12 are provided on the surface of the first calendering frame 1, and the second pressing frame 12 is provided at the bottom of the second calendering frame 2. The bottom end of the first pressing frame 11 is provided with a main calendering airbag 13, and the bottom end of the main calendering airbag 13 is fixedly connected with a main calendering seat 14, and calendering rollers 15 are evenly provided at the bottom of the main calendering seat 14. Side calendering seats 16 are provided on both sides of the main calendering seat 14, and calendering balls 17 are evenly provided on the sides of the side calendering seats 16. The back of the side calendering seat 16 is provided with a A side calendering airbag 18 is arranged, and movable side grooves 19 are provided on both sides of the main calendering seat 14. The movable side grooves 19 are adapted to the side calendering seat 16, the calendering ball 17 and the side calendering airbag 18. An air control pump 20 is arranged at the top center of the first top pressing frame 11, and mounting seats 21 are arranged at both ends of the top of the first top pressing frame 11. A first contraction groove 22 is arranged inside the conveying bottom frame 9, and a first contraction spring 23 is arranged inside the first contraction groove 22. One end of the first contraction spring 23 is provided with a first contraction seat 24, and the first contraction spring 23 is provided with a first contraction seat 24. The surface of the shrink seat 24 is provided with a first protective pad 25, the interior of the shrink side frame 8 is provided with a second shrink groove 26, the interior of the second shrink groove 26 is provided with a second shrink spring 27, one end of the second shrink spring 27 is fixedly connected to the second shrink seat 28, and the surface of the second shrink seat 28 is provided with a second protective pad 29. The first pressing frame 11 and the second pressing frame 12 are synchronously started to control the main calendering airbag 13 to drive the calendering roller 15 of the main calendering seat 14 at one end through the air control pump 20 at the center of the surface, and the calendering roller 15 of the main calendering seat 14 at one end is appropriately It is matched to be top-connected to the center of the upper and lower surfaces of the tire cord inside the first calendering frame 1 and the second calendering frame 2, and the side calendering airbags 18 inside the movable side grooves 19 on both sides of the main calendering seat 14 are ventilated and retracted, and can also adaptively drive the side calendering seat 16 and the calendering ball 17 at one end to connect to the two sides of the tire cord, thereby realizing different calendering operations on the center and both sides of the tire cord, so that the tire cord on both sides has better ductility in an arc state relative to the center, and better completes the calendering production operation of the tire cord.

[0035] Working principle: When in use, the user first puts the tire cord that needs to be calendered into the second calendering frame 2, then passes it into the first calendering frame 1, and finally passes it out for collection. At this time, the first calendering frame 1 and the second calendering frame 2 have the same structure but opposite directions, and can respectively perform adaptive calendering operations on the upper and lower surfaces of the tire cord. At this time, the first pressing frame 11 and the second pressing frame 12 can be started synchronously to control the main calendering airbag 13 through the air control pump 20 at the center of the surface to drive the calendering roller 15 of the main calendering seat 14 at one end, and adaptively connect it to the center of the upper and lower surfaces of the tire cord inside the first calendering frame 1 and the second calendering frame 2, and the side calendering airbags 18 inside the movable side grooves 19 on both sides of the main calendering seat 14 The ventilation and telescopic function can also adaptively drive the side calendering seat 16 and the calendering ball 17 at one end to connect to the two sides of the tire cord, thereby realizing different calendering operations on the center and two sides of the tire cord, so that the tire cords on both sides have better ductility in an arc state relative to the center, and better complete the calendering production operation of the tire cord. At the same time, the tire cord can change its arc shape up and down with the shape of the calendering groove 30 inside the first calendering frame 1 and the second calendering frame 2. The calendering rubber pad 10 inside the calendering groove 30, in conjunction with the design of the central main connecting groove 40 and the side connecting grooves 41 on both sides of the limiting side frame 6 and the limiting bottom frame 7, performs synchronous adaptive calendering processing up and down, and completes the cord calendering operation of the tire production more efficiently, meeting the subsequent tire cord on both sides. In order to meet the arc-shaped requirement of the edge, during daily use, when the tire cord inside the first calendering frame 1 and the second calendering frame 2 is adaptively calendered on the calendering rubber pad 10 through the main calendering seat 14, the calendering roller 15, the side calendering seat 16 and the calendering ball 17, the inner wall of the shrinkage side frame 8 on both sides of the limiting side frame 6 can be adaptively contracted inside the second contraction groove 26 by the second contraction spring 27, and the second protective pad 29 of the second contraction seat 28 at one end thereof is adaptively limited with the side calendering seats 16 and the calendering balls 17 on both sides, and the conveying chassis 9 at the bottom end of the limiting chassis 7 can also have the same structure, through the contraction of the first contraction spring 23 in the first contraction groove 22, the first protective pad 25 of the first contraction seat 24 at one end thereof can also be compatible with the main The calendering seat 14 and the bottom of the calendering roller 15 are adapted and limited, so as to ensure that the calendering rubber pad 10 is inside the calendering groove 30. At the same time, in the daily process of passing the tire cord from the second calendering frame 2 into the first calendering frame 1, the tire cord can be adapted and inserted and limited from the inside of the first feed frame 3, the second feed frame 4 and the discharge frame 5 in turn. The tire cord is connected to the inner wall of the second arc pressing mold frame 36 through the third pressing air bag 35 on the inner bottom wall of the first feed frame 3, so that when it enters the second calendering frame 2, the bottom of the tire cord remains in an arc state. The internal structure of the second feed frame 4 is opposite. The tire cord is connected to the inside of the first arc pressing mold frame 33 through the second pressing air bag 34 on the inner top wall, so that when it enters the first calendering frame 1, the top part remains in an arc state.The first pressing frame 11 and the second pressing frame 12 in the first calendering frame 1 and the second calendering frame 2 are adaptively adjusted to the calendering shape, and finally the first pressing airbag 31 and the pressing plate 32 in the discharge frame 5 are used to level the discharge operation, so as to achieve a more appropriate calendering auxiliary operation for the tire cord and improve the final calendering quality. The above is the whole working principle of the present invention.

[0036] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A tire cord calendering device for tire production, comprising a first calendering frame (1) and a second calendering frame (2), characterized in that: The first calendering frame (1) and the second calendering frame (2) have the same structure. The first calendering frame (1) and the second calendering frame (2) are in opposite directions. The end of the second calendering frame (2) away from the first calendering frame (1) is fixedly connected to the first feeding frame (3), the end of the second calendering frame (2) close to the first calendering frame (1) is fixedly connected to the second feeding frame (4), the end of the first calendering frame (1) away from the second calendering frame (2) is fixedly connected to the discharge frame (5), both sides of the first calendering frame (1) are fixedly connected to the limiting side frames (6), the bottom of the first calendering frame (1) is fixedly connected to the limiting bottom frame (7), the side of the limiting side frame (6) is fixedly connected to the contraction side frame (8), the bottom end of the limiting bottom frame (7) is fixedly connected to the conveying bottom frame (9), and the inner wall of the first calendering frame (1) is provided with a calendering rubber pad (10); A first pressing frame (11) and a second pressing frame (12), wherein the first pressing frame (11) is arranged on the surface of the first pressing frame (1), and the second pressing frame (12) is arranged on the bottom of the second pressing frame (2); a main pressing airbag (13) is arranged at the bottom end of the first pressing frame (11); the bottom end of the main pressing airbag (13) is fixedly connected to a main pressing seat (14); a pressing roller (15) is evenly arranged at the bottom of the main pressing seat (14); side pressing seats (16) are arranged on both sides of the main pressing seat (14); pressing balls (17) are evenly arranged on the sides of the side pressing seats (16); side pressing airbags (18) are arranged on the back of the side pressing seats (16); movable side grooves (19) are opened on both sides of the main pressing seat (14); the movable side grooves (19) are compatible with the side pressing seats (16), the pressing balls (17) and the side pressing airbags (18).

2. The tire cord calendering device according to claim 1, characterized in that: An air control pump (20) is arranged at the top centre of the first pressing frame (11), and mounting seats (21) are arranged at both ends of the top of the first pressing frame (11).

3. The cord calendering device for tire production according to claim 1, characterized in that: A first contraction groove (22) is provided inside the conveying chassis (9), a first contraction spring (23) is provided inside the first contraction groove (22), a first contraction seat (24) is provided at one end of the first contraction spring (23), and a first protective pad (25) is provided on the surface of the first contraction seat (24).

4. The cord calendering device for tire production according to claim 1, characterized in that: A second contraction groove (26) is provided inside the contraction side frame (8), a second contraction spring (27) is provided inside the second contraction groove (26), one end of the second contraction spring (27) is fixedly connected to a second contraction seat (28), and a second protective pad (29) is provided on the surface of the second contraction seat (28).

5. The cord calendering device for tire production according to claim 1, characterized in that: A calendering groove (30) is provided inside the first calendering frame (1), and the calendering groove (30) is adapted to fit the calendering rubber pad (10).

6. The cord calendering device for tire production according to claim 1, characterized in that: First pressing air bags (31) are arranged at both upper and lower ends of the discharge rack (5), and a pressing plate (32) is arranged between the first pressing air bags (31).

7. The cord calendering device for tire production according to claim 1, characterized in that: The inner bottom wall of the second material conveying frame (4) is provided with a first arc pressing die frame (33), the inner top wall of the second material conveying frame (4) is provided with a second pressing air bag (34), the inner bottom wall of the first material conveying frame (3) is provided with a third pressing air bag (35), and the inner top wall of the first material conveying frame (3) is provided with a second arc pressing die frame (36).

8. The cord calendering device for tire production according to claim 1, characterized in that: The bottom wall of the first calendering frame (1) and the top of the second calendering frame (2) are provided with main limiting grooves (37) via a limiting bottom frame (7), and both sides of the first calendering frame (1) and the second calendering frame (2) are provided with side limiting grooves (38).

9. The cord calendering device for tire production according to claim 1, characterized in that: The first calendering frame (1) and the second calendering frame (2) are provided with a docking groove (39) inside, a main docking groove (40) is provided at the center of the docking groove (39), and side docking grooves (41) are provided on both sides of the docking groove (39).

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