CN116730084A

CN116730084A - Slitting rewinder for Teflon cloth production

Info

Publication number: CN116730084A
Application number: CN202310993466.5A
Authority: CN
Inventors: 朱其达; 赵霖; 顾峥; 洪新照
Original assignee: Jiangsu Longyu New Materials Co ltd
Current assignee: Jiangsu Longyu New Materials Co ltd
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2023-09-12
Anticipated expiration: 2043-08-09
Also published as: CN116730084B

Abstract

The invention relates to the technical field of the rewinding of Teflon cloth, in particular to a slitting and rewinding machine for producing the Teflon cloth, which comprises a raw material roller for installing the Teflon cloth roll, a knife roller for cutting the Teflon cloth and a shunting roller for shunting and cutting the Teflon cloth, and has the beneficial effects that: the purpose of pneumatic expansion is achieved by means of opposite splicing extrusion, the purpose of extruding and fixing the composite winding drum is achieved, meanwhile, in the process of extrusion splicing, the lifting jacking block is driven to ascend, the I-shaped compression rod is driven in a lateral pneumatic mode, the purpose of laterally fixing the composite winding drum is achieved, and the installation position and stability of the composite winding drum are further improved.

Description

Slitting rewinder for Teflon cloth production

Technical Field

The invention relates to the technical field of rewinding generated by Teflon cloth, in particular to a slitting rewinder for producing the Teflon cloth.

Background

The Teflon cloth is prepared by taking suspension polytetrafluoroethylene (commonly known as plastic king) emulsion as a raw material and impregnating high-performance glass fiber cloth. Is a new product of high-performance and multipurpose composite material.

The existing Teflon cloth is in a rolled state with a longer width after being molded, for attractive appearance and convenient use, a rewinding splitting machine is generally adopted to split and rewind the Teflon cloth, so that the Teflon cloth is formed into a plurality of groups of rolls with smaller widths, and the Teflon cloth is convenient to use.

The existing rewinding splitting machine generally adopts a splitting knife to cut the Teflon cloth with a longer width, and the cut Teflon cloth is split at intervals through a rotating roller after being cut, so that the Teflon cloth is wound on different rewinding drums, and in order to improve the installation efficiency of the rewinding drums, a pneumatic expansion rod is generally adopted as a driving rotating shaft for rewinding, so that the purpose of fixing the rewinding drums is achieved, however, in the actual use process, when the rewinding is finished, the pneumatic expansion rod still needs to be integrally disassembled to facilitate the unloading of the rewinding drums, and meanwhile, the rewinding drums are abutted against the inner wall of the rewinding drums through pneumatic expansion ejector blocks to achieve fixation, and the problem that the rewinding drums are laterally offset still exists due to vibration of the machine in the rewinding winding process, so that the rewinding winding precision is lower.

Disclosure of Invention

The invention aims to provide a slitting rewinder for producing Teflon cloth, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the utility model provides a cut rewinding machine of Teflon cloth production usefulness, cut rewinding machine includes the raw materials roller that is used for installing Teflon cloth, is used for cutting the knife roll of Teflon cloth and is used for the reposition of redundant personnel to cut back Teflon cloth, cut rewinding machine includes:

the rewinding driving assembly comprises a pair of pneumatic telescopic rotating rods driven by winding motors, wherein the pneumatic telescopic rotating rods are distributed up and down, one ends of the pneumatic telescopic rotating rods are rotationally connected with an output shaft of each winding motor, and the other ends of the pneumatic telescopic rotating rods are in telescopic connection with T-shaped connecting rods.

The rewinding rotating assembly comprises a middle cross beam, a rewinding frame and a rewinding drum, wherein the middle cross beam is positioned in the middle of an upper pneumatic telescopic rotating rod and a lower pneumatic telescopic rotating rod, rotating arms are respectively arranged at the upper end and the lower end of the middle cross beam, the end portions of the rotating arms are connected with the rewinding frame which is flush with the pneumatic telescopic rotating rod at equal height, a rewinding rotating shaft is rotatably arranged on a bearing on the rewinding frame, four groups of limit slots distributed in a circumferential array are arranged on the circular arc outer wall of the rewinding rotating shaft, transverse slots are transversely formed in the outer side end portions of the rewinding rotating shaft, first folding pipes are arranged in inner cavities of the transverse slots, positioning compression rods matched and connected with T-shaped connecting rods are arranged on the outer sides of the first folding pipes, step storage grooves are formed in the limit slots, second folding pipes are arranged in the inner cavities of the step storage grooves, lifting jack blocks are connected with the second folding pipes and are communicated with the first folding pipes, I-shaped compression rods are arranged on one side walls of the lifting jack blocks, which are close to the rewinding frame, and I-shaped compression rods are arranged in the limit slots, and the I-shaped compression rods are sleeved on the limit compression rods, and the I-shaped compression rods are arranged on the limit compression rods, and the limit compression rods are arranged on the limit compression rods.

The unloading assembly comprises a circular ring sliding plate, a circular ring folding bag and an unloading frame, wherein the circular ring sliding plate is sleeved on a rewinding rotating shaft, the circular ring folding bag is arranged between the circular ring sliding plate and the rewinding frame, a T-shaped inner cavity for communicating the circular ring folding bag is arranged on the rewinding frame, a piston is arranged in a vertical port of the T-shaped inner cavity, the vertical port of the T-shaped inner cavity is positioned at the upper end of the rewinding frame, the middle cross beam is fixedly arranged on the unloading frame, a pair of telescopic compression rods are arranged on the unloading frame, and the telescopic compression rods are opposite to the vertical ports of the T-shaped inner cavities in the pair of rewinding frames which are distributed vertically.

Preferably, the T-shaped connecting rod is matched and clamped with the positioning compression bar, a limiting insertion plate inserted in the limiting insertion groove is arranged on an end vertical plate of the T-shaped connecting rod, and the end vertical plate of the T-shaped connecting rod is pressed on the side wall of the rewinding cylinder.

Preferably, the circular arc inner wall of the circular ring slide plate is provided with a sliding block which is matched with the limiting slot for sliding insertion, the end part of the compound winding drum is tightly pressed on the circular ring slide plate, and the Teflon cloth is wound on the compound winding drum after cutting.

Preferably, two ends of the T-shaped inner cavity are communicated with the annular folding bag, a limiting annular cover which is installed in a threaded rotation mode is arranged at the upper end port of the middle vertical inner cavity of the T-shaped inner cavity, and the inner diameter of a middle through hole of the limiting annular cover is smaller than the outer diameter of the piston.

Preferably, the middle cross beam is provided with a hinged support driven by a motor, the rotating arm is rotatably arranged on the hinged support, after the rotating arm rotates, the telescopic end of the telescopic compression rod is inserted into the middle vertical inner cavity of the T-shaped inner cavity in a penetrating manner along the middle through hole of the limiting ring cover, and the end part of the telescopic compression rod is pressed on the piston.

Preferably, the inner cavity of the rewinding rotating shaft is provided with a compression inner cavity, one end of the compression inner cavity is communicated with the first folding pipe, the inner cavity of the lifting jacking block is arranged as a pneumatic inner cavity, and the other end of the compression inner cavity is communicated with the second folding pipe and the pneumatic inner cavity.

Preferably, the limiting plate is installed on the middle step surface of the step storage groove by a screw, the lower end of the lifting jacking block is inserted on the limiting plate in a sliding penetrating mode, a pair of wing plates located on the inner side of the limiting plate are arranged on the outer wall of the lower end of the lifting jacking block, a first spring is sleeved at the lower end of the lifting jacking block, the upper end of the first spring abuts against the limiting plate, and the lower end of the first spring abuts against the wing plates.

Preferably, an extrusion transverse groove is transversely formed in one side, close to the limiting strip, of the upper end of the pneumatic inner cavity, a fixed end cover is fixedly arranged at the end part of the extrusion transverse groove, the middle section of the I-shaped compression rod penetrates through the fixed end cover in a sliding mode, one end of the I-shaped compression rod is inserted into the inner wall of the extrusion transverse groove, and the other end of the I-shaped compression rod extends to the outer side of the lifting jacking block.

Preferably, the i-shaped compression bar is sleeved with a second spring, one end of the second spring is propped against the fixed end cover, and the other end of the second spring is propped against the end plate of the i-shaped compression bar.

Preferably, the slitting rewinder comprises a pair of racks which are bilaterally symmetrical, the raw material roller, the knife roller and the shunt roller are all rotatably arranged between the pair of racks, a pair of guide rollers are arranged on two sides of the lower end of the knife roller, and three groups of disc slitting knives which are distributed at intervals are fixedly sleeved on the knife roller.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the rewinding rotating assembly is arranged, so that the splicing installation between the rewinding drum and the rewinding rotating shaft is realized, and the rewinding rotating shaft is matched with the pneumatic telescopic rotating rod of the slitting rewinder, so that the rewinding drum is convenient to disassemble and install, the pneumatic telescopic rotating rod of the slitting rewinder is prevented from being disassembled in a whole, and the disassembly and installation efficiency is greatly improved.

Meanwhile, the purpose of pneumatic expansion is achieved by means of opposite splicing extrusion, the purpose of extruding and fixing the composite winding drum is achieved, meanwhile, in the process of extrusion splicing, the lifting jacking block is driven to ascend, the I-shaped compression rod is driven in a lateral pneumatic mode, the purpose of laterally fixing the composite winding drum is achieved, and the installation position and stability of the composite winding drum are further improved.

Drawings

Fig. 1 is a schematic structural view of a rewinding driving assembly and a rewinding rotating assembly according to the present invention.

Fig. 2 is a schematic perspective view of a slitting rewinder according to the present invention.

Fig. 3 is an enlarged view of the structure at a in fig. 1.

Fig. 4 is an enlarged view of the structure at B in fig. 1.

Fig. 5 is a top view of the slitter-winder of the present invention.

Fig. 6 is a schematic diagram of a semi-cut perspective structure of the rewinding frame of the present invention.

Fig. 7 is an enlarged view of the structure at C in fig. 2.

In the figure: 1. a frame; 2. a winding motor; 3. a pneumatic telescopic rotating rod; 4. a rewinding frame; 5. a middle cross beam; 6. a rotating arm; 7. a hinged support; 8. a discharging frame; 9. a ring folding bag; 10. rewinding the rotating shaft; 11. positioning a compression bar; 12. a T-shaped connecting rod; 13. a rewinding drum; 14. a guide roller; 15. a knife roll; 16. a disc dividing knife; 17. a raw material roller; 18. a diverting roller; 19. teflon cloth; 20. a transverse slot; 21. compressing the inner cavity; 22. a first folded tube; 23. a limit slot; 24. limiting plugboards; 25. a circular ring slide plate; 26. a T-shaped lumen; 27. a limit ring cover; 28. a piston; 29. a slide block; 30. a limit bar; 31. an I-shaped compression bar; 32. a limiting plate; 33. lifting the top block; 34. a pneumatic inner chamber; 35. a second folded tube; 36. a first spring; 37. a step accommodating groove; 38. extruding the transverse grooves; 39. fixing the end cover; 40. a second spring; 41. and a telescopic compression bar.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 7, the present invention provides a technical solution:

the utility model provides a cut rewinding machine that Teflon cloth production was used, cut rewinding machine is including the raw materials roller 17 that is used for installing Teflon cloth 19, the knife roll 15 that is used for cutting Teflon cloth 19 and the reposition of redundant personnel roller 18 that is used for reposition of redundant personnel to cut back Teflon cloth 19, cut rewinding machine includes rewinding drive assembly, rewinding rotating assembly and unloading subassembly, cut rewinding machine includes a pair of frame 1 of bilateral symmetry, raw materials roller 17, knife roll 15 and reposition of redundant personnel roller 18 are all rotated and are installed between a pair of frame 1, the lower extreme both sides of knife roll 15 are provided with a pair of guide roll 14, the fixed three disc divides cutter 16 of interval distribution that cup joint on the knife roll 15.

The long-rolled Teflon cloth 19 is arranged on the frame 1 by arranging the raw material roller 17, the Teflon cloth 19 smoothly extends along the lower end of the knife roller 15 by the guide roller 14, the Teflon cloth 19 is cut by the disc slitting knife 16 on the knife roller 15, and the cut Teflon cloth 19 is split to the rewinding frame 4 at intervals by the splitting roller 18.

The rewinding driving assembly comprises a pair of pneumatic telescopic rotating rods 3 which are vertically distributed and driven by a winding motor 2, one ends of the pneumatic telescopic rotating rods 3 are rotatably connected with an output shaft of the winding motor 2, and the other ends of the pneumatic telescopic rotating rods 3 are in telescopic connection with T-shaped connecting rods 12.

By arranging the cooperation of the pneumatic telescopic rotating rod 3 and the T-shaped connecting rod 12, telescopic plugging installation is realized.

The rewinding rotating assembly comprises a middle cross beam 5, a rewinding frame 4 and a rewinding cylinder 13, wherein the middle cross beam 5 is positioned in the middle of the pair of upper and lower pneumatic telescopic rotating rods 3, rotating arms 6 are respectively and rotatably arranged at the upper end and the lower end of the middle cross beam 5, the end parts of the rotating arms 6 are connected with the rewinding frame 4 which is flush with the pneumatic telescopic rotating rods 3 in the same height, a motor-driven hinged support 7 is arranged on the middle cross beam 5, and the rotating arms 6 are rotatably arranged on the hinged support 7.

The rotary adjustment of the swivel arm 6 is achieved by providing a motor-driven swivel mount 7.

The upper bearing of the rewinding frame 4 is rotatably provided with a rewinding rotating shaft 10, four groups of limiting slots 23 distributed in a circumferential array are arranged on the circular arc outer wall of the rewinding rotating shaft 10, a transverse slot 20 is transversely arranged at the outer side end part of the rewinding rotating shaft 10, a first folding pipe 22 is arranged in the inner cavity of the transverse slot 20, and a positioning compression rod 11 matched and clamped with the T-shaped connecting rod 12 is arranged at the outer side of the first folding pipe 22.

The transverse inserting installation of the positioning compression rod 11 is achieved through the transverse inserting groove 20, the elastic installation of the positioning compression rod 11 is achieved through the first folding pipe 22, and then under the transverse driving inserting of the pneumatic telescopic rotating rod 3, the end portion of the T-shaped connecting rod 12 is pressed on the positioning compression rod 11, the first folding pipe 22 is compressed, and the positioning compression rod 11 is driven to be stored in the inner cavity of the transverse inserting groove 20.

The T-shaped connecting rod 12 is matched and clamped with the positioning compression rod 11, a limiting plugboard 24 which is inserted into a limiting slot 23 is arranged on a vertical plate at the end part of the T-shaped connecting rod 12, and the vertical plate at the end part of the T-shaped connecting rod 12 is pressed on the side wall of the rewinding cylinder 13.

Through setting up spacing picture peg 24 and spacing slot 23's cooperation, realize the spacing grafting installation between pneumatic flexible bull stick 3 and the rewinding pivot 10, avoid producing the beat in the transmission process of rotation, guarantee the tension and the regularity of rolling.

The limiting slot 23 is provided with a step accommodating groove 37, a second folding pipe 35 is arranged in the inner cavity of the step accommodating groove 37, the outer side of the second folding pipe 35 is connected with a lifting jacking block 33 which extends to the outer side of the step accommodating groove 37, the inner cavity of the lifting jacking block 33 is communicated with the second folding pipe 35 and the first folding pipe 22, the inner cavity of the rewinding rotating shaft 10 is provided with a compression inner cavity 21, one end of the compression inner cavity 21 is communicated with the first folding pipe 22, the inner cavity of the lifting jacking block 33 is arranged as a pneumatic inner cavity 34, and the other end of the compression inner cavity 21 is communicated with the second folding pipe 35 and the pneumatic inner cavity 34.

Through setting up the vertical elasticity installation of second folding pipe 35 realization lift kicking block 33 in ladder storage tank 37, and then utilize pneumatic inner chamber 34 realization and first folding pipe 22 intercommunication, at the flexible bull stick 3 grafting in-process of pneumatics, extrusion location depression bar 11, drive location depression bar 11 side direction slides, extrusion first folding pipe 22 this moment for the internal pressure increases, because pneumatic inner chamber 34 and compression inner chamber 21 intercommunication, thereby make the expansion of second folding pipe 35, drive lift kicking block 33 rises along ladder storage tank 37, realizes the extrusion to rewinding drum 13 circular arc inner wall, realizes forward extrusion fixed.

The limiting plate 32 is installed on the middle step surface of the step storage groove 37 through screws, the lower end of the lifting jack block 33 is inserted into the limiting plate 32 in a sliding penetrating mode, a pair of wing plates located on the inner side of the limiting plate 32 are arranged on the outer wall of the lower end of the lifting jack block 33, the lower end of the lifting jack block 33 is sleeved with the first spring 36, the upper end of the first spring 36 abuts against the limiting plate 32, and the lower end of the first spring 36 abuts against the wing plates.

By providing the first spring 36 so that the lifting jack 33 keeps a downward movement trend, the lifting jack 33 is accommodated in the step accommodating groove 37 under the condition that the internal pressure is not changed, the splicing installation of the rewinding drum 13 is facilitated, and the lifting high end of the lifting jack 33 is limited by the limiting plate 32.

The lifting jacking block 33 is provided with an I-shaped compression bar 31 on the side wall close to the rewinding frame 4, the I-shaped compression bar 31 is pneumatically and telescopically inserted in the inner cavity of the lifting jacking block 33, the rewinding cylinder 13 is sleeved on the rewinding rotating shaft 10, the inner wall of the rewinding cylinder 13 is provided with a limiting bar 30 inserted in the limiting slot 23, the limiting bar 30 and the ladder storage groove 37 are distributed in a staggered mode, the limiting bar 30 is located on one side close to the rewinding frame 4, one side, close to the limiting bar 30, of the upper end of the pneumatic inner cavity 34 is transversely provided with an extrusion transverse groove 38, the end portion of the extrusion transverse groove 38 is fixedly provided with a fixed end cover 39, the middle section of the I-shaped compression bar 31 penetrates through the fixed end cover 39 in a sliding mode, one end of the I-shaped compression bar 31 is inserted on the inner wall of the extrusion transverse groove 38, the other end of the I-shaped compression bar 31 extends to the outer side of the lifting jacking block 33, the I-shaped compression bar 31 is sleeved with a second spring 40, one end of the second spring 40 abuts against the fixed end cover 39, and the other end of the second spring 40 abuts against the end plate of the I-shaped compression bar 31.

The positioning sleeve connection installation of the rewinding drum 13 is realized by arranging the limiting strips 30, and then along with the further extrusion of the pneumatic telescopic rotating rod 3, the side wall of the lifting jacking block 33 abuts against the limiting plate 32, the second folding pipe 35 cannot expand continuously, the internal pressure continues to increase, the I-shaped pressing rod 31 is driven to move outwards and extrude the second spring 40, the I-shaped pressing rod 31 is laterally pressed on the limiting strips 30, the purpose of laterally fixing the rewinding drum 13 is achieved, and the purpose of further laterally fixing is achieved when the lifting jacking block 33 is fixed in a forward extrusion mode.

The discharging assembly comprises a circular ring sliding plate 25, a circular ring folding bag 9 and a discharging frame 8, wherein the circular ring sliding plate 25 is sleeved on a rewinding rotating shaft 10, a sliding block 29 which is matched with a limiting slot 23 in sliding connection is arranged on the circular ring inner wall of the circular ring sliding plate 25, the end part of a rewinding cylinder 13 is tightly pressed on the circular ring sliding plate 25, a Teflon cloth 19 is wound on the rewinding cylinder 13 after being cut, the circular ring folding bag 9 is arranged between the circular ring sliding plate 25 and the rewinding frame 4, a T-shaped inner cavity 26 communicated with the circular ring folding bag 9 is arranged on the rewinding frame 4, a piston 28 is arranged in a vertical port of the T-shaped inner cavity 26, the vertical port of the T-shaped inner cavity 26 is positioned at the upper end of the rewinding frame 4, a middle cross beam 5 is fixedly arranged on the discharging frame 8, a pair of telescopic compression rods 41 are arranged on the discharging frame 8, and the telescopic compression rods 41 are opposite to the vertical ports of the T-shaped inner cavities 26 in the rewinding frame 4 which are distributed up and down.

The expansion of the annular folding bag 9 is regulated and controlled by arranging the piston in the T-shaped inner cavity 26, and the purpose of extruding the piston 28 is achieved by utilizing the telescopic driving of the telescopic compression rod 41, so that the annular sliding plate 25 is driven to slide, and the purpose of pushing and discharging is achieved.

The two ends of the T-shaped inner cavity 26 are communicated with the annular folding bag 9, a limiting annular cover 27 which is installed in a threaded rotation mode is arranged at the upper end port of the middle vertical inner cavity of the T-shaped inner cavity 26, the inner diameter of a middle through hole of the limiting annular cover 27 is smaller than the outer diameter of the piston 28, after the rotating arm 6 rotates, the telescopic end of the telescopic compression rod 41 penetrates and is inserted into the middle vertical inner cavity of the T-shaped inner cavity 26 along the middle through hole of the limiting annular cover 27, and the end portion of the telescopic compression rod 41 is pressed on the piston 28.

The lifting height of the piston 28 is limited by using the limiting ring cover 27, so that when the pneumatic telescopic rotating rod 3 is laterally pressed, the vertical plate at the end part of the T-shaped connecting rod 12 is laterally pressed on the rewinding cylinder 13, the ring folding bag 9 is driven to compress by lateral extrusion, and the piston 28 rises and is attached to the limiting ring cover 27.

Working principle: the rewinding drum 13 is spliced on the rewinding rotating shaft 10 along the limiting slot 23, one end of the rewinding drum 13 is attached to the circular ring sliding plate 25, the T-shaped connecting rod 12 is pressed on the positioning pressing rod 11 by utilizing the pneumatic extension of the pneumatic telescopic rotating rod 3, the rewinding drum 13 is driven to laterally press the circular ring sliding plate 25 in the pressing process, the circular ring folding bag 9 is compressed, the piston 28 is lifted, the lifting jacking block 33 is driven to lift and positively press on the rewinding drum 13, and the I-shaped pressing rod 31 is driven to laterally press on the limiting strip 32 along with the further pressing, so that the fixing of the rewinding drum 13 is further achieved.

The end of Teflon cloth 19 is adhered to a rewinding drum 13, a motor 2 is used for driving a pneumatic telescopic rotating rod 3 to rotate, a rewinding rotating shaft 10 is pulled to rotate, the purpose of rewinding is achieved, after rewinding is completed, separation from a rewinding frame 4 is achieved through resetting of the pneumatic telescopic rotating rod 3, further driving of a hinged support 7 is utilized, a rotating arm 6 rotates to a position of a discharging frame 8, a telescopic pressing rod 41 is opposite to a vertical port of a T-shaped inner cavity 26 in the rewinding frame 4, the purpose of extruding a piston 28 is achieved through telescopic pressing rod 41, a ring folding bag 9 is inflated, and a ring sliding plate 25 slides laterally and extrudes the rewinding drum 13 to slide along the rewinding rotating shaft 10, so that the purpose of discharging is achieved.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cut rewinding machine that teflon cloth production was used, cut rewinding machine includes raw materials roller (17) that are used for installing teflon cloth (19), knife roll (15) that are used for cutting teflon cloth (19) and shunt roll (18) that are used for the reposition of redundant personnel to cut back teflon cloth (19), its characterized in that: the slitting rewinder comprises:

the rewinding driving assembly comprises a pair of pneumatic telescopic rotating rods (3) driven by winding motors (2) which are distributed up and down, one end of each pneumatic telescopic rotating rod (3) is rotationally connected with an output shaft of each winding motor (2), and the other end of each pneumatic telescopic rotating rod (3) is telescopically connected with a T-shaped connecting rod (12);

the rewinding rotating assembly comprises a middle cross beam (5), a rewinding frame (4) and a rewinding cylinder (13), wherein the middle cross beam (5) is positioned in the middle of an upper pair of pneumatic telescopic rotating rods (3), rotating arms (6) are respectively rotatably arranged at the upper end and the lower end of the middle cross beam (5), the end portions of the rotating arms (6) are connected with the rewinding frame (4) flush with the pneumatic telescopic rotating rods (3) at equal height, the rewinding rotating shaft (10) is rotatably arranged on the rewinding frame (4) through bearings, four groups of limiting slots (23) distributed in a circumferential array are arranged on the circular arc outer wall of the rewinding rotating shaft (10), transverse slots (20) are transversely arranged at the outer side end portions of the rewinding rotating shaft (10), first folding pipes (22) are arranged in the inner cavities of the transverse slots (20), positioning compression rods (11) matched and clamped with T-shaped connecting rods (12) are arranged at the outer sides of the first folding pipes (22), storage grooves (37) are formed in the inner cavities of the step storage grooves (37), second folding pipes (35) are arranged in the inner cavities of the step storage grooves (37), second folding pipes (35) are connected with the outer side folding pipes (35), and the second folding pipes (35) are connected with the outer side folding pipes (35), an I-shaped compression bar (31) is arranged on the side wall of the lifting top block (33) close to the rewinding frame (4), the I-shaped compression bar (31) is pneumatically connected in an inner cavity of the lifting top block (33) in a telescopic manner, the rewinding cylinder (13) is sleeved on the rewinding rotating shaft (10), a limit strip (30) connected in the limit slot (23) in an inserting manner is arranged on the inner wall of the rewinding cylinder (13), the limit strip (30) and the ladder storage groove (37) are distributed in a staggered manner, and the limit strip (30) is positioned on one side close to the rewinding frame (4);

the utility model provides a discharge assembly, the discharge assembly includes ring slide (25), ring folding bag (9) and frame (8) of unloading, ring slide (25) cup joint on rewinding pivot (10), are provided with ring folding bag (9) between ring slide (25) and the rewinding frame (4), are provided with T shape inner chamber (26) of intercommunication ring folding bag (9) on the rewinding frame (4), be provided with piston (28) in the vertical port of T shape inner chamber (26), and the vertical port of T shape inner chamber (26) is located the upper end of rewinding frame (4), middle crossbeam (5) fixed mounting is provided with a pair of flexible depression bar (41) on frame (8) of unloading, flexible depression bar (41) are just to the vertical port of T shape inner chamber (26) in a pair of rewinding frame (4) that distributes from top to bottom.

2. The slitting and rewinding machine for producing teflon cloths according to claim 1, characterized in that: the T-shaped connecting rod (12) is clamped with the positioning compression rod (11) in a matching way, a limiting insertion plate (24) inserted into the limiting insertion groove (23) is arranged on a vertical plate at the end part of the T-shaped connecting rod (12), and the vertical plate at the end part of the T-shaped connecting rod (12) is pressed on the side wall of the rewinding cylinder (13).

3. The slitting and rewinding machine for producing teflon cloths according to claim 1, characterized in that: the circular arc inner wall of the circular ring sliding plate (25) is provided with a sliding block (29) which is matched with the limiting slot (23) in sliding connection, the end part of the rewinding cylinder (13) is tightly pressed on the circular ring sliding plate (25), and the Teflon cloth (19) is wound on the rewinding cylinder (13) after cutting.

4. A slitter-winder for teflon cloth production as claimed in claim 3, wherein: the two ends of the T-shaped inner cavity (26) are communicated with the annular folding bag (9), a limiting annular cover (27) which is installed in a threaded rotation mode is arranged at the upper end port of the middle vertical inner cavity of the T-shaped inner cavity (26), and the inner diameter of a middle through hole of the limiting annular cover (27) is smaller than the outer diameter of the piston (28).

5. The slitting and rewinding machine for producing teflon cloths as claimed in claim 4, characterized in that: be provided with motor drive's free bearing (7) on middle crossbeam (5), rocking arm (6) rotate and install on free bearing (7), and after rocking arm (6) rotated, the flexible end of flexible depression bar (41) runs through along the middle through-hole of spacing ring lid (27) and peg graft in the middle vertical inner chamber of T shape inner chamber (26), and the tip pressfitting of flexible depression bar (41) is on piston (28).

6. The slitting and rewinding machine for producing teflon cloths according to claim 1, characterized in that: the inner cavity of the rewinding rotating shaft (10) is provided with a compression inner cavity (21), one end of the compression inner cavity (21) is communicated with the first folding pipe (22), the inner cavity of the lifting jacking block (33) is arranged as a pneumatic inner cavity (34), and the other end of the compression inner cavity (21) is communicated with the second folding pipe (35) and the pneumatic inner cavity (34).

7. The slitting and rewinding machine for producing teflon cloths as claimed in claim 6, characterized in that: the middle step surface of the step storage groove (37) is provided with a limiting plate (32) through a screw, the lower end of the lifting jack block (33) is inserted into the limiting plate (32) in a sliding mode, the outer wall of the lower end of the lifting jack block (33) is provided with a pair of wing plates located on the inner side of the limiting plate (32), the lower end of the lifting jack block (33) is sleeved with a first spring (36), the upper end of the first spring (36) abuts against the limiting plate (32), and the lower end of the first spring (36) abuts against the wing plates.

8. The slitting and rewinding machine for producing teflon cloths as claimed in claim 7, characterized in that: one side of the upper end of the pneumatic inner cavity (34) close to the limit bar (30) is transversely provided with an extrusion transverse groove (38), the end part of the extrusion transverse groove (38) is fixedly provided with a fixed end cover (39), the middle section of the I-shaped compression bar (31) penetrates through the fixed end cover (39) in a sliding mode, one end of the I-shaped compression bar (31) is inserted into the inner wall of the extrusion transverse groove (38), and the other end of the I-shaped compression bar (31) extends to the outer side of the lifting jacking block (33).

9. The slitting and rewinding machine for producing teflon cloths as claimed in claim 8, characterized in that: the I-shaped compression bar (31) is sleeved with a second spring (40), one end of the second spring (40) is propped against the fixed end cover (39), and the other end of the second spring (40) is propped against the end plate of the I-shaped compression bar (31).

10. The slitting and rewinding machine for producing teflon cloths according to claim 1, characterized in that: the slitting rewinder comprises a pair of racks (1) which are bilaterally symmetrical, wherein a raw material roller (17), a knife roller (15) and a shunt roller (18) are all rotatably arranged between the pair of racks (1), a pair of guide rollers (14) are arranged on two sides of the lower end of the knife roller (15), and three groups of disc slitting cutters (16) which are distributed at intervals are fixedly sleeved on the knife roller (15).