Cloth discharging device of pure cotton natural color cloth weaving machine

Abstract

The invention belongs to the field of weaving machines, and provides a cloth discharge device of a pure cotton natural color cloth weaving machine, which comprises a weaving machine cloth discharge conveying belt, a cloth discharge tailstock, a tensioning mechanism, a cloth discharge rack and a winding mechanism, the tensioning mechanism comprises a horizontal supporting base, an inclined supporting base, a first tensioning roller and a second tensioning roller, the winding mechanism comprises a pair of reducing roller sets, and a connecting rod mechanism and a lifting oil cylinder are arranged on the two sides of the cloth discharging rack. The horizontal section and the lower inclined section of the cloth outlet transmission belt of the weaving machine are matched with the tensioning mechanism, woven cloth can be fed into the winding mechanism at a certain tension degree, the cloth is continuously wound into rolls by the winding mechanism in a centerless supporting mode, the cloth rolls are convenient to take and place, the device can be suitable for supporting the cloth rolls which are changed from small to large, and the production efficiency is improved. The cloth discharging and collecting efficiency can be improved, and large-scale popularization is facilitated.

Description

Technical Field

[0001] The invention belongs to the field of looms, and in particular relates to a cloth discharging device of a pure cotton natural color cloth loom. Background Art

[0002] Pure cotton natural fabric is a kind of textile made of cotton, which has not been dyed and retains the original color of cotton. It is different from the cotton purity of other fabrics, such as viscose home textile grey fabric, bamboo textile grey fabric and polyester-cotton blended grey fabric. Pure cotton natural fabric has the characteristics of natural environmental protection, good air permeability, strong moisture absorption, good warmth retention and high durability. It can be used in the fields of clothing, home textiles and decorative products. The loom used in the weaving process of pure cotton natural fabric is also called spinning machine, loom, cotton spinning machine, etc. Looms are generally divided into four types of shuttleless looms: rapier, air jet, water jet and projectile shuttle. At the end of the loom, the woven cloth is displayed from the cloth output roller group, and the cloth collection roller group collects the cloth into rolls.

[0003] The existing patent CN221117818U discloses a fabric discharging device of an air jet loom, including a frame, a cloth guide roller, a tensioning mechanism and a cloth collecting mechanism. The frame is arranged on the cloth discharging side of the air jet loom, the cloth guide roller is rotatably mounted on the frame, the tensioning mechanism and the cloth collecting mechanism are both arranged on the frame, and the tensioning mechanism and the cloth collecting mechanism are distributed along the transport direction of the fabric; after the fabric is discharged from the air jet loom, it is transported to the tensioning mechanism by the cloth guide roller for tensioning, the tensioned fabric is combed by the combing mechanism, and the brush roller brushes up the fine hair on the fabric. However, since the cloth collecting roller of the cloth collecting mechanism of the device adopts a shaft-type support design, although the fabric can be rolled up, the rolled cloth roll is inconvenient to be removed, which affects the fabric discharging efficiency. Summary of the invention

[0004] In view of the technical problems existing in the above-mentioned loom, the present invention proposes a cloth discharging device for a pure cotton natural color cloth loom which has a reasonable design, is convenient for taking and placing cloth rolls, and is beneficial to improving the efficiency of cloth discharging and collecting.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is that the present invention provides a cloth discharge device of a pure cotton natural color cloth loom, including a cloth discharge conveyor belt of the loom, the cloth discharge conveyor belt of the loom is arranged on the cloth discharge tailstock, a tensioning mechanism is arranged above the conveying surface of the cloth discharge conveyor belt of the loom, a cloth discharge frame is arranged in the cloth discharge direction of the cloth discharge conveyor belt of the loom and the tensioning mechanism, a winding mechanism is arranged on the cloth discharge frame, the cloth discharge conveyor belt of the loom includes a horizontal section and a downward inclined section, and the tensioning mechanism includes horizontal support brackets arranged on both sides of the horizontal section and inclined support seats arranged on both sides of the lower inclined section, the first tensioning roller and the second tensioning roller are respectively arranged on the horizontal support seat and the inclined support seat, the winding mechanism comprises a pair of variable diameter roller groups distributed in parallel with the first tensioning roller and the second tensioning roller, the two variable diameter roller groups are used to realize centerless rolling support for the cloth roll, a pair of seat bearings are arranged on the rotation center line of the variable diameter roller group, and connecting rod mechanisms for adjusting the spacing between the two seat bearings on the same side are arranged on both sides of the cloth output frame, and a lifting cylinder is arranged at the driving end of the connecting rod mechanism.

[0006] Preferably, the variable diameter roller group includes a central axis, a pair of clamping disks are arranged on the central axis, at least 8 first U-shaped openings distributed in a circular array are arranged on the clamping disk, an annular end plate is arranged on one side of the clamping disk, a plurality of second U-shaped openings corresponding to the first U-shaped openings are arranged on the end plate, the first U-shaped openings and the second U-shaped openings are relatively distributed to form waist-shaped adjustment holes, a plurality of roller shafts matching the waist-shaped adjustment holes are arranged between the clamping disks, an umbrella frame assembly hingedly matched with the axial end of the roller shaft is arranged on the central axis, the umbrella frame assembly is movably nested with the central axis and a transmission flange is arranged at its end, a transmission key is arranged on the inner side of the transmission flange, a long strip hole movably matched with the transmission key is arranged on the axial surface of the central axis, a variable diameter transmission core shaft connected to the transmission key is arranged inside the central axis, and a flexible stretching assembly is arranged at the power input end of the variable diameter transmission core shaft.

[0007] Preferably, the umbrella frame assembly includes a plurality of fork rods and a sleeve, one end of the fork rod is provided with a U-shaped opening hinged to the axial end of the roller shaft, the width of the fork rod gradually narrows from the U-shaped opening to the other end of the fork rod, the other end of the fork rod is provided with a fixed axis, one end of the sleeve is provided with a plurality of flap openings for installing the fixed axis, and the other end of the sleeve is provided with a flange plate for connecting to a transmission flange.

[0008] Preferably, the variable diameter transmission core shaft is provided with a rotating joint at the end away from the umbrella frame assembly, and a slider is provided at the end of the rotating joint. The slider cooperates with a slide plate provided on the side of the cloth output frame, and a slide groove for the slider to perform a translational movement is provided on the inner side of the slide plate. Two pairs of guide rods slidably cooperated with the slide plate are provided at both ends of the slide plate, and the guide rods are provided on the cloth output frame.

[0009] Preferably, the flexible stretching assembly includes a first pulley arranged at the end of the slide plate, a second pulley arranged at the end of the cloth outlet frame and a pay-off wheel arranged below the second pulley, a pull rope is arranged on the transmission surfaces of the first pulley and the second pulley, the end of the pull rope is arranged on the pay-off wheel, a wheel axle is arranged at the center of the pay-off wheel, a deceleration unwinding motor is arranged at the driving end of the wheel axle, and the deceleration unwinding motor is installed on the inner side of the cloth outlet frame.

[0010] Preferably, the connecting rod mechanism includes a slider nested with the two center axes, and the slider is slidably set in a sliding mouth opened on the cloth output frame. The connecting rod mechanism also includes a first connecting rod and a second connecting rod arranged at the ends of the two center axes. The first connecting rod and the second connecting rod are hinged and a hinge shaft is arranged at the hinge center, and the hinge shaft is hinged to the telescopic end of the lifting cylinder.

[0011] Preferably, sliding holes corresponding to and connected to the sliding openings are provided on both sides of the cloth discharging frame, and T-shaped pressing plates are provided in the sliding holes, and the top surface of the T-shaped pressing plates is located above the cloth discharging frame.

[0012] Preferably, a guide opening is provided at the bottom of the seat bearing, and a guide rail connected to the cloth output frame is provided in the guide opening.

[0013] Preferably, a pair of top covers for covering both sides of the cloth discharging frame and the connecting rod mechanism are arranged above the cloth discharging frame.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are:

[0015] 1. The present invention provides a cloth discharging device for a pure cotton natural color cloth loom, which utilizes the horizontal section and the downward inclined section of the cloth discharging transmission belt of the loom to cooperate with the tensioning mechanism, and can send the woven cloth into the winding mechanism with a certain tension. The winding mechanism continuously winds the cloth into a roll by means of centerless support, which is convenient for taking and placing the cloth roll, and is beneficial to improving the cloth discharging and collecting efficiency.

[0016] 2. The cloth discharging device of a pure cotton natural color cloth loom provided by the present invention can control the planar movement of the connecting rod mechanism by the lifting cylinder, thereby controlling the actual supporting span of the seat bearing and two variable diameter roller groups, and the real-time diameter of the variable diameter roller group is adjustable, which can be suitable for supporting cloth rolls that change from small to large, and is beneficial to improving the real-time winding effect of the winding mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 An axonometric diagram of a cloth discharging device of a pure cotton natural color cloth loom provided in an embodiment;

[0019] Figure 2 A front view of a cloth discharging device of a pure cotton natural color cloth loom provided in an embodiment;

[0020] Figure 3 A side view of a cloth discharging device of a pure cotton natural color cloth loom provided in an embodiment;

[0021] Figure 4 for Figure 2 A cross-sectional view of a cloth discharging device of a pure cotton natural color cloth loom in the GG direction;

[0022] Figure 5 for Figure 3 A cross-sectional view of a cloth discharging device of a pure cotton natural cloth loom in the EE direction;

[0023] Figure 6 A side view of a cloth discharging frame and a winding mechanism (without a slide plate) provided in an embodiment;

[0024] Figure 7 A cross-sectional view of a winding mechanism (without a flexible stretching component) provided for an embodiment;

[0025] Figure 8 An axonometric view of a winding mechanism (without a flexible stretching component) provided for an embodiment;

[0026] Fig. 9 for Figure 7 A magnified schematic diagram of the structure in the middle;

[0027] Fig.10 for Figure 8 A magnified schematic diagram of structure B in the middle;

[0028] In the above figures:

[0029] 1. cloth-discharging conveyor belt of the loom; 11. horizontal section; 12. lower inclined section; 2. cloth-discharging tailstock; 3. tensioning mechanism; 31. horizontal support bracket; 32. inclined support bracket; 33. first tensioning roller; 34. second tensioning roller; 4. cloth-discharging frame; 41. slide plate; 42. guide rod; 43. guide rail; 44. seat bearing; 5. winding mechanism; 51. variable-diameter roller group; 511. center axis; 512. clamping plate; 513. first U-shaped opening; 514. end plate; 515. second U-shaped opening; 516. roller shaft; 52. umbrella frame assembly; 521. fork rod; 522, bushing; 523, U-shaped mouth; 524, fixed shaft; 525, flap mouth; 526, flange plate; 53, transmission flange; 54, transmission key; 55, variable diameter transmission mandrel; 551, rotary joint; 552, slider; 56, flexible stretching component; 561, first pulley; 562, second pulley; 563, pull rope; 564, pay-off wheel; 565, deceleration pay-off motor; 6, connecting rod mechanism; 61, slider; 62, first connecting rod; 63, second connecting rod; 64, hinge shaft; 65, T-shaped pressure plate; 7, lifting cylinder; 8, top cover; 9, cloth roll. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear below, they only indicate that the upper, lower, left and right directions are consistent with the accompanying drawings themselves, and do not limit the structure.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0032] Examples, such as Figure 1-Figure 10As shown, a cloth discharging device of a pure cotton natural color cloth loom provided by the present invention comprises a cloth discharging conveyor belt 1 of the loom, wherein the cloth discharging conveyor belt 1 of the loom is arranged on a cloth discharging tailstock 2, and the cloth discharging tailstock 2 is connected with the loom, and a tensioning mechanism 3 is arranged above the conveying surface of the cloth discharging conveyor belt 1 of the loom, and a cloth discharging frame 4 is arranged in the cloth discharging direction of the cloth discharging conveyor belt 1 and the tensioning mechanism 3 of the loom, and a winding mechanism 5 is arranged on the cloth discharging frame 4, and the cloth discharging conveyor belt 1 of the loom comprises a horizontal section 11 and a downward inclined section 12, and the tensioning mechanism 3 comprises a horizontal support bracket 31 arranged on both sides of the horizontal section 11 and an inclined support bracket 3 arranged on both sides of the downward inclined section 12 2. The first tensioning roller 33 and the second tensioning roller 34 are respectively arranged on the horizontal support bracket 31 and the inclined support bracket 32. The winding mechanism 5 includes a pair of variable diameter roller groups 51 distributed in parallel with the first tensioning roller 33 and the second tensioning roller 34. The two variable diameter roller groups 51 are used to realize centerless rolling support for the cloth roll 9 and can perform synchronous translational movement with the variable diameter roller group 51. A pair of seat bearings 44 are arranged on the rotation center line of the variable diameter roller group 51. Both sides of the cloth output frame 4 are provided with a connecting rod mechanism 6 for adjusting the distance between the two seat bearings 44 on the same side. The driving end of the connecting rod mechanism 6 is provided with a lifting cylinder 7. One of the variable diameter roller groups 51 is driven by a winding drive motor, and the winding drive motor transmits power to the central axis 511 of the variable diameter roller group 51 through a driven gear, a driving gear, a tensioning gear and a gear belt, such as Figure 8 As shown, the driven gear is arranged between the seat bearing 44 and the slider 61 , and the winding drive motor and the driving gear, the tensioning gear and the gear belt are arranged on the inner side of the cloth output frame 4 .

[0033] Specifically, the cloth outlet part of the loom transmits the cloth from low to high to the horizontal section 11 of the cloth outlet transmission belt of the loom, and the cloth is transmitted from the horizontal section 11 along the lower inclined section 12 toward the winding mechanism 5. On the cloth transmission path, the tension of the cloth can be increased by turning. The first tensioning roller 33 of the tensioning mechanism 3 is used to avoid the cloth jumping. Moreover, the cloth is continuously fed from the second tensioning roller 34 to the rotating cloth roll 9, which is also a feature from low to high. Therefore, the cloth can also maintain a good tension at the connection part between the tensioning mechanism 3 and the winding mechanism 5, which can improve the cloth feeding effect. Furthermore, the woven cloth is fed into the winding mechanism 5 with a certain tension, and the winding mechanism 5 continuously winds the cloth into a roll by means of centerless support. There is no connection structure at both ends of the cloth roll 9, but the variable diameter roller group 51 is used to limit its left and right movement. The center of gravity of the cloth roll 9 finally rolled to a certain diameter is higher than the maximum limit level of the variable diameter roller group 51, so the difficulty of taking and placing the finished cloth roll 9 is relatively low, which is conducive to improving the efficiency of cloth output and collection. It should be noted that the cloth-making and cloth-discharging speed of a general loom is 3~5mm / min or 3~8m / min. In order to ensure the rolling and tightening of the whole set of cloth, the speed of the variable diameter roller group can be controlled to be greater than the cloth-discharging speed of the loom, and the differential effect can be used to achieve the tightening of the cloth; further, a hollow metal tube with a certain weight is used as the center of the cloth. In the initial stage of cloth discharging, the head end of the cloth is adhered to the hollow metal tube by the staff, and the two ends of the hollow metal tube are clamped by clamping plates. In addition, due to the gravity of the hollow metal tube, the cloth can be effectively maintained at the support center of the two variable diameter roller groups during the continuous rolling process, and there will be large up and down jumps. Moreover, as the thickness and weight of the cloth gradually increase, the cloth can maintain effective contact and support with the variable diameter roller group throughout the process, and effectively remain in the cloth collecting station, thereby completing the winding operation of the whole roll of cloth. Among them, the mass of the hollow metal tube in the center of the cloth is originally smaller than the solid roller used in the existing loom cloth outlet station. The mass of the solid roller with a width of 2m at the existing loom cloth outlet station is generally not less than 300kg. The hollow metal tube used in the present invention is mainly to meet the initial cloth collection requirements and the subsequent workshop transfer requirements of the cloth.

[0034] Furthermore, the lifting cylinder 7 can control the planar movement of the connecting rod mechanism 6, and the movable end of the connecting rod mechanism 6 is connected to the two seat bearings 44. Therefore, on the basis of the seat bearing 44 maintaining support for the center of the variable diameter roller group 51, the actual support span of the two variable diameter roller groups 51 can be adjusted, and the triangular relationship between the driven gear, the driving gear, and the tensioning gear can produce reasonable changes to ensure that the winding drive motor continues to power the variable diameter roller group 51; furthermore, the real-time diameter of the variable diameter roller group 51 itself is adjustable. As a structure that directly supports the cloth roll 9, the change in its diameter also directly causes the change in the support span of the two variable diameter roller groups 51, which can be suitable for supporting the cloth roll 9 that changes from small to large, especially to avoid the situation where the cloth roll 9 has obvious head swing and tail swing due to the small supported span after the volume increases. Therefore, the winding mechanism 5 provided by the present invention can ensure that the cloth outlet side of the device has good stability of real-time winding action.

[0035] like Figure 7-10As shown, the variable diameter roller group 51 includes a central shaft 511, the shaft side of the central shaft 511 cooperates with the seat bearing 44, a pair of clamping plates 512 are arranged on the central shaft 511, and at least 8 first U-shaped openings 513 distributed in a circular array are arranged on the clamping plates 512, and a circular end plate 514 is arranged on one side of the clamping plates 512, and a plurality of second U-shaped openings 515 corresponding to the first U-shaped openings 513 are arranged on the end plate 514, and the first U-shaped openings 513 and the second U-shaped openings 515 are relatively distributed to form waist-shaped adjustment holes, and a plurality of A roller shaft 516 is matched with the waist-shaped adjustment hole one by one, and an umbrella frame assembly 52 is arranged on the central shaft 511 and is hingedly matched with the axial end of the roller shaft 516. The umbrella frame assembly 52 is movably nested with the central shaft 511 and a transmission flange 53 is arranged at its end. A transmission key 54 is arranged on the inner side of the transmission flange 53. A long strip hole movably matched with the transmission key 54 is arranged on the axial surface of the central shaft 511. A variable diameter transmission core shaft 55 which is transmission-connected to the transmission key 54 is arranged inside the central shaft 511, and a flexible stretching assembly 56 is arranged at the power input end of the variable diameter transmission core shaft 55. The rollers 516 all have shoulders, and the shoulders are against the end surface of the clamping plate 512. The clamping plate 512 provides a mounting node and a radial diameter-changing path for the rollers 516 on the one hand, and is used to limit the roll width of the cloth roll 9 on the other hand. The end plate 514 is installed on the clamping plate 512, so that the first U-shaped opening 513 and the second U-shaped opening 515 form a closed waist-shaped adjustment hole, so the end plate 514 can be used to control the maximum diameter-changing length of the diameter-changing roller group 51. The umbrella frame assembly 52 can slide along the central axis 511, and the umbrella frame assembly 52 A transmission relationship is established with the flexible stretching component 56 through the transmission flange 53, the transmission key 54 and the variable diameter transmission core shaft 55. If the flexible stretching component 56 drives the variable diameter transmission core shaft 55 to move along the middle position of the central axis 511, the transmission key 54 drives the umbrella frame component 52 to move toward the clamping disk 512, and the umbrella frame component 52 supports the roller shaft 516 to open along the waist-shaped adjustment hole. The center distance between the roller shaft 516 and the central axis 511 on the same variable diameter roller group 51 is pulled apart, so the diameter of the variable diameter roller group 51 can be adjusted.

[0036] Furthermore, the number of roller shafts 516 of the same variable-diameter roller group 51 corresponds to the number of waist-shaped adjustment holes, and the number is not less than 8. In this way, the roller shaft 516 can have sufficient support density within the adjustable range of the variable-diameter roller group 51, which is beneficial to increase the support pairs of the variable-diameter roller group 51 and the cloth roll 9. In particular, after the volume of the cloth roll 9 increases, a sufficient number of support pairs can ensure the stability of the continuous rolling of the cloth roll 9, so as to ensure the efficiency of cloth delivery and collection.

[0037] like Figure 1 , Figure 2 and Fig.10As shown, the umbrella frame assembly 52 includes a plurality of fork rods 521 and a sleeve 522. One end of the fork rod 521 is provided with a U-shaped opening 523 hinged to the shaft end of the roller shaft 516. The width of the fork rod 521 gradually narrows from the U-shaped opening to the other end of the fork rod 521. The other end of the fork rod 521 is provided with a fixed shaft 524. One end of the sleeve 522 is provided with a plurality of flap openings 525 for installing the fixed shaft 524. The other end of the sleeve 522 is provided with a flange plate 526 for connecting with the transmission flange 53. Among them, the matching surface of the sleeve 522 and the central shaft 511 is a smooth surface, which is used to reduce relative translation friction; the flange plate 526 and the transmission flange 53 are connected by flange bolts to complete multi-node connection, so as to ensure the connection reliability of the variable diameter transmission path; the shape of the fork rod 521 adopts a design of wide front and narrow back, which is not only the need for space planning, but also the applicability requirement considering that the maximum diameter of the sleeve 522 is smaller than the maximum adjustment diameter of the roller shaft 516.

[0038] like Figure 7 , Figure 8 and Fig. 9 As shown, the variable diameter transmission mandrel 55 is provided with a rotary joint 551 at one end thereof away from the umbrella frame assembly 52, and a slider 552 is provided at the end of the rotary joint 551, and the slider 552 cooperates with a slide plate 41 provided on the side of the cloth discharging frame 4, and a slide groove for the slider 552 to perform a translational motion is provided on the inner side of the slide plate 41, and two pairs of guide rods 42 that slide with the slider 41 are provided at both ends of the slide plate 41, and the guide rods 42 are provided on the cloth discharging frame 4. If the flexible stretching assembly 56 drives the slide plate 41 to perform a translational motion along the guide rods 42, the slide plate 41 can drive the slider 552 to push the rotary joint 551 and the variable diameter transmission mandrel 55 to move along the axial direction of the central axis 511, thereby achieving the purpose of controlling the real-time diameter of the variable diameter roller group 51. At the same time, the slide groove on the slide plate 41 provides a path for the slide plate 41 that is perpendicular to the moving direction of the variable diameter transmission core shaft 55, so that when the connecting rod mechanism 6 adjusts the two variable diameter roller groups 51, it will not affect the rotation condition of the variable diameter roller group 51, and ensure that the flexible pull rope 563 assembly and the variable diameter roller group 51 always remain in a ready adjustment state.

[0039] like Figure 1As shown, the flexible stretching assembly 56 includes a first pulley 561 disposed at the end of the slide plate 41, a second pulley 562 disposed at the end of the cloth discharging frame 4, and a pay-off wheel 564 disposed below the second pulley 562. A pull rope 563 is disposed on the transmission surfaces of the first pulley 561 and the second pulley 562. The end of the pull rope 563 is disposed on the pay-off wheel 564. The center of the pay-off wheel 564 is provided with an axle. The driving end of the axle is provided with a deceleration unwinding motor 565. The deceleration unwinding motor 565 is installed on the inner side of the cloth discharging frame 4. The flexible stretching assembly 56 is considered from the aspect of space coordination, takes the cloth discharging frame 4 as the assembly basis, and arranges the transmission path of the pull rope 563 at a reasonable node. Specifically, both ends of the pull rope 563 are fixed on the pay-off wheel 564, which is wrapped in a C shape on the first pulley 561 for most of the circle, and the two strands of the pull rope 563 after being wrapped are pressed into the wheel groove of the second pulley 562 from the same side; in this way, while the deceleration unwinding motor 565 drives the pay-off wheel 564 to rotate, the actual working length of the pull rope 563 changes, and especially the first pulley 561 can be made to produce a translational motion, thereby driving the slide plate 41, the slider 552, and the variable diameter transmission core shaft 55 to move in a direction parallel to the guide rod 42, thereby achieving the purpose of controlling the real-time diameter of the variable diameter roller group 51.

[0040] like Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, the link mechanism 6 includes a slider 61 nested with the two center shafts 511, the slider 61 is slidably arranged in the sliding opening opened on the cloth discharging frame 4, and the link mechanism 6 also includes a first link 62 and a second link 63 arranged at the ends of the two center shafts 511, the first link 62 and the second link 63 are hinged and a hinge shaft 64 is arranged at the hinge center, and the hinge shaft 64 is hinged to the telescopic end of the lifting cylinder 7. Among them, the slider 61 is rotatably matched with the center shaft 511, and the slider 61 can also drive the center shaft 511 to move while moving horizontally along the sliding opening, and ensure that the shaft side of the center shaft 511 has a second support in addition to the support of the seat bearing 44, which can improve the working reliability of the variable diameter roller group 51. The bottom of the lifting cylinder 7 is a fixed end, and the top of the lifting cylinder 7 is a telescopic end. When the lifting cylinder 7 drives the hinge shaft 64 to rise and fall, the horizontal length of the first connecting rod 62 and the second connecting rod 63 can be changed, and the first connecting rod 62 and the second connecting rod 63 also make planar motion around the central axis 511 of the corresponding variable diameter roller group 51, thereby realizing the adjustment of the horizontal support span of the two variable diameter roller groups 51.

[0041] like Figure 1 and Figure 5As shown, sliding holes corresponding to the sliding openings are provided on both sides of the cloth outlet frame 4, and a T-shaped pressure plate 65 is provided in the sliding hole. The top surface of the T-shaped pressure plate 65 is located above the cloth outlet frame 4, and the T-shaped pressure plate 65 and the slider 61 can move synchronously, thereby ensuring the stability of the slider 61 in the passive adjustment for the translation action and preventing it from having a large range of axial movement.

[0042] like Figure 2 As shown, the bottom of the seat bearing 44 is provided with a guide opening, and a guide track 43 connected to the cloth discharging frame 4 is provided in the guide opening. By designing the guide track 43, anti-jump protection can be provided for the seat bearing 44, so that it has a stable support surface while moving with the variable diameter roller group 51, thereby allowing the variable diameter roller group 51 to always maintain a smooth rotation effect in the rotating state. The seat bearing can be installed at the bottom of the self-rotation drive source of the variable diameter roller group. The self-rotation drive source, such as a motor, can transmit power to the central axis of the variable diameter roller group through the reduction gear group from top to bottom, so as to realize the self-rotation of the variable diameter roller group and be supported by the bearings that ensure the effective matching of the variable diameter roller group.

[0043] like Figure 1 and Figure 5 As shown, in order to protect the connecting rod mechanism 6 and other partial structures, the present invention is provided with a pair of top covers 8 for covering both sides of the cloth discharging frame 4 and the connecting rod mechanism 6 above the cloth discharging frame 4, and the top covers 8 prevent debris from falling into the components of the device and causing equipment failure.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A cloth discharging device of a pure cotton unbleached cloth loom, comprising a cloth discharging conveyor belt of the loom, the cloth discharging conveyor belt of the loom being arranged on a cloth discharging tailstock, a tensioning mechanism being arranged above the conveying surface of the cloth discharging conveyor belt of the loom, a cloth discharging frame being arranged in the cloth discharging direction of the cloth discharging conveyor belt of the loom and the tensioning mechanism, a winding mechanism being arranged on the cloth discharging frame, characterized in that: The cloth-discharging conveyor belt of the loom comprises a horizontal section and a downward inclined section, the tensioning mechanism comprises a horizontal support bracket arranged on both sides of the horizontal section and an inclined support bracket arranged on both sides of the downward inclined section, the horizontal support bracket and the inclined support bracket are respectively provided with a first tensioning roller and a second tensioning roller, the winding mechanism comprises a pair of variable-diameter roller groups distributed in parallel with the first tensioning roller and the second tensioning roller, the two variable-diameter roller groups are used to realize centerless rolling support for the cloth roll, a pair of seat bearings are arranged on the rotation center line of the variable-diameter roller group, and connecting rod mechanisms for adjusting the spacing between the two seat bearings on the same side are arranged on both sides of the cloth-discharging frame, and a lifting cylinder is arranged at the driving end of the connecting rod mechanism.

2. The cloth discharging device of a pure cotton natural color cloth loom according to claim 1, characterized in that: The variable diameter roller group includes a central axis, a pair of clamping plates are arranged on the central axis, at least 8 first U-shaped openings distributed in a circular array are arranged on the clamping plate, an annular end plate is arranged on one side of the clamping plate, a plurality of second U-shaped openings corresponding to the first U-shaped openings are arranged on the end plate, the first U-shaped openings and the second U-shaped openings are relatively distributed to form waist-shaped adjustment holes, a plurality of roller shafts matching the waist-shaped adjustment holes are arranged between the clamping plates, an umbrella frame assembly hingedly matched with the axial end of the roller shaft is arranged on the central axis, the umbrella frame assembly is movably nested with the central axis and a transmission flange is arranged at its end, a transmission key is arranged on the inner side of the transmission flange, a long strip hole movably matched with the transmission key is arranged on the axial surface of the central axis, a variable diameter transmission core shaft connected to the transmission key is arranged inside the central axis, and a flexible stretching assembly is arranged at the power input end of the variable diameter transmission core shaft.

3. The cloth discharging device of a pure cotton natural color cloth loom according to claim 2, characterized in that: The umbrella frame assembly includes multiple fork rods and a sleeve, one end of the fork rod is provided with a U-shaped opening hinged to the axial end of the roller shaft, the width of the fork rod gradually narrows from the U-shaped opening to the other end of the fork rod, the other end of the fork rod is provided with a fixed shaft, one end of the sleeve is provided with multiple flap openings for installing the fixed shaft, and the other end of the sleeve is provided with a flange plate for connecting with a transmission flange.

4. The cloth discharging device of a pure cotton natural color cloth loom according to claim 3, characterized in that: The variable diameter transmission core shaft is provided with a rotating joint at the end away from the umbrella frame assembly, and a slider is provided at the end of the rotating joint. The slider cooperates with a slide plate provided on the side of the cloth discharging frame, and a slide groove for the slider to perform a translational movement is provided on the inner side of the slide plate. Two pairs of guide rods that slide with each other are provided at both ends of the slide plate, and the guide rods are provided on the cloth discharging frame.

5. The cloth discharging device of a pure cotton natural color cloth loom according to claim 4, characterized in that: The flexible stretching assembly includes a first pulley arranged at the end of the slide plate, a second pulley arranged at the end of the cloth outlet frame and a pay-off wheel arranged below the second pulley, a pull rope is arranged on the transmission surfaces of the first pulley and the second pulley, the end of the pull rope is arranged on the pay-off wheel, a wheel axle is arranged at the center of the pay-off wheel, a deceleration unwinding motor is arranged at the driving end of the wheel axle, and the deceleration unwinding motor is installed on the inner side of the cloth outlet frame.

6. The cloth discharging device of a pure cotton natural color cloth loom according to claim 2, characterized in that: The connecting rod mechanism includes a slider nested with the two center shafts, and the slider is slidably set in a slide opening opened on the cloth output frame. The connecting rod mechanism also includes a first connecting rod and a second connecting rod arranged at the ends of the two center shafts. The first connecting rod and the second connecting rod are hinged and a hinge shaft is arranged at the hinge center. The hinge shaft is hinged to the telescopic end of the lifting cylinder.

7. The cloth discharging device of a pure cotton natural color cloth loom according to claim 6, characterized in that: Sliding holes corresponding to and communicating with the sliding openings are arranged on both sides of the cloth discharging frame, and T-shaped pressing plates are arranged in the sliding holes, and the top surface of the T-shaped pressing plates is located above the cloth discharging frame.

8. The cloth discharging device of a pure cotton natural color cloth loom according to claim 1, characterized in that: A guide opening is arranged at the bottom of the seat bearing, and a guide rail connected with the cloth discharging frame is arranged in the guide opening.

9. The cloth discharging device of a pure cotton natural color cloth loom according to claim 1, characterized in that: A pair of top covers for covering both sides of the cloth discharging frame and the connecting rod mechanism are arranged above the cloth discharging frame.

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