Outer let-off device of warp uniformizing machine of rapier loom

By installing movable reeds and guide rollers in the warp feeding device of the warp leveling machine on a rapier loom, combined with a pressure roller support assembly, the problem of inconvenient tension roller adjustment is solved, thereby achieving uniform warp tension and improved fabric quality, while reducing operating costs.

CN223879948UActive Publication Date: 2026-02-06SHANDONG RIFA TEXTILE MACHINERY
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Patent Information

Application Number
CN202520551946.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-02-06
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

In the existing technology, when weaving carbon fiber and glass fiber fabrics, the tension roller of the external warp feeding device is inconvenient to adjust, resulting in uneven warp tension, which affects the fabric quality. In addition, the operating cost is high and it cannot meet the adjustment requirements of different yarn tensions.

Method used

An external warp feeding device for a rapier loom warp leveling machine was designed. By setting up a vertically movable reed and a yarn guide roller, combined with a left pressure roller support arm assembly and a right pressure roller support assembly, the parallel movement and fine adjustment of the tension roller can be realized. It is equipped with an adjustable yarn guide roller cross-sectional shape to meet different yarn tension requirements.

Benefits of technology

It improves the uniformity of warp and weft yarn distribution, enhances the neatness of the fabric surface and the quality of the finished product, reduces labor intensity, meets the adjustment needs of different yarn tensions, and reduces operating costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a rapier loom uniform warp outside let-off device which comprises a uniform warp device assembly and an outside let-off device assembly, a warp yarn winding creel is arranged in front of the uniform warp device assembly, a rear beam is arranged behind the outside let-off device assembly, and the uniform warp device assembly comprises a wall plate. Lower cross beams, reed supporting frames, upper cross beams and yarn guide rollers are connected between the wallboards, the two sets of lower cross beams are arranged below the wallboards, the upper cross beams are arranged on the upper sides of the rear portions of the wallboards, the reed supporting frames are arranged on the upper sides of the front portions of the wallboards, reeds are fixed above the reed supporting frames, and the yarn guide rollers are arranged between the reed supporting frames and the upper cross beams. The off-machine let-off device assembly comprises a let-off reduction gearbox assembly and a left supporting body assembly, a false warp beam assembly and a tension roller assembly are arranged between the let-off reduction gearbox assembly and the left supporting body assembly, the tension roller assembly is tangent to the false warp beam assembly, and a left side pressing roller supporting arm assembly and a right side pressing roller supporting assembly are arranged on the two sides of the tension roller assembly respectively. A tension roller is arranged in the tension roller assembly.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of textile production technology, concretely relates to a rapier loom even warp machine outside warp feeding device. BACKGROUND

[0002] Textile machinery, also known as spinning machine, weaving machine or cotton spinning machinery, is an ancient weaving equipment driven by manpower. The main function of the machinery is to convert raw materials such as threads, silk and hemp into silk threads through processing, and further weave into cloth. The even warp device and the warp feeding device are needed during weaving, the even warp device is a key equipment used for warping or weaving preparation in the textile process, and the main function is to ensure that the warp yarn is arranged uniformly and the tension is consistent, so as to improve the weaving efficiency and the quality of finished products. The warp feeding device transports the arranged warp yarn on the beam into the machine, and the warp yarn is synthesized into cloth and wound by the machine.

[0003] In the prior art, for the field of carbon fiber and glass fiber fabric weaving technology, the tension roller of the outside warp feeding device is usually installed on the support arm provided with multiple hole positions. Since the weight of the tension roller is large, its adjustment process at different hole positions is particularly inconvenient. In addition, once the device is assembled, if it is found that the axial direction of the tension roller and the dummy beam is not parallel, fine adjustment cannot be performed, thereby causing unevenness of the warp tension and affecting the weaving quality. During the warp feeding and weaving process, the radial force between the tension roller and the dummy beam cannot be adjusted. Usually, the lifting action of the compression roller is completed by a cylinder actuator, which needs compressed air, thereby increasing the operation cost and failing to meet the adjustment of different yarn tension requirements. UTILITY MODEL CONTENTS

[0004] The utility model discloses a rapier loom even warp machine outside warp feeding device. The even warp device assembly of the disclosed device is provided with vertically movable reeds and yarn guide rollers, so that the warp yarn is evenly distributed in the weft direction, improving the neatness of the cloth surface. The left compression roller support assembly and the right compression roller support assembly are arranged in the outside warp feeding device assembly, so that the tension roller moves parallel under the action of the jack, slightly adjusts the warp tension, improves the work efficiency, and adjusts the axial direction of the tension roller after the device is installed by arranging the support plate and the top plate, so that the axial direction of the tension roller and the dummy beam is parallel, improves the tightness of the fabric yarn, and the finished product has a delicate feel.

[0005] The utility model discloses a rapier loom even warp machine outside warp feeding device. The even warp device assembly of the disclosed device is provided with vertically movable reeds and yarn guide rollers, so that the warp yarn is evenly distributed in the weft direction, improving the neatness of the cloth surface. The left compression roller support assembly and the right compression roller support assembly are arranged in the outside warp feeding device assembly, so that the tension roller moves parallel under the action of the jack, slightly adjusts the warp tension, improves the work efficiency, and adjusts the axial direction of the tension roller after the device is installed by arranging the support plate and the top plate, so that the axial direction of the tension roller and the dummy beam is parallel, improves the tightness of the fabric yarn, and the finished product has a delicate feel.

[0006] An external warp feeding device for a rapier loom warp leveling machine includes a warp leveling device assembly and an external warp feeding device assembly connected front and rear. A warp winding frame is positioned in front of the warp leveling device assembly, and a rear beam is positioned behind the external warp feeding device assembly. The warp leveling device assembly includes two symmetrically arranged wall plates. A lower crossbeam, a reed support frame, an upper crossbeam, and a guide roller are connected between the two wall plates. Two sets of lower crossbeams are positioned below the wall plates, and the upper crossbeam is positioned on the upper rear side of the wall plates. The reed support frame is positioned on the upper front side of the wall plates, and a reed is fixed above the reed support frame. The guide roller is positioned between the reed support frame and the upper crossbeam. The wall plates, lower crossbeam, and upper crossbeam constitute the overall frame of the warp leveling device assembly. The reed support frame can stably fix the reed. The number of guide rollers can be increased or decreased according to the fabric weaving requirements. The cross-sectional shape of the guide roller can be adjusted according to different yarn tension requirements. Circular guide rollers can also adopt different cross-sectional shapes such as rhomboid tubes, rectangles, triangles, and ellipses.

[0007] The external warp feeding device assembly includes a warp feeding gearbox assembly and a left support body assembly. A dummy warp beam assembly and a tension roller assembly are connected between the warp feeding gearbox assembly and the left support body assembly. The tension roller assembly is tangential to the dummy warp beam assembly. A left pressure roller support arm assembly and a right pressure roller support assembly are respectively provided on both sides of the tension roller assembly. A tension roller is provided in the middle of the tension roller assembly. The distance between the tension roller and the dummy warp beam assembly can be adjusted by the left pressure roller support arm assembly and the right pressure roller support assembly, so as to adjust the yarn tension according to the fabric weaving requirements.

[0008] Preferably, the wall panel has vertical strip-shaped through holes at the connection points with the reed support frame and the yarn guide roller. Bolts that fix the reed support frame and the yarn guide roller pass through the strip-shaped through holes, and the reed support frame and the yarn guide roller can be vertically adjusted in height according to the fabric weaving and device installation requirements.

[0009] Preferably, the warp feed gearbox assembly includes a warp feed motor, the output shaft of which is rotatably connected to the warp feed gearbox via a coupling, and the other end of the warp feed gearbox is fixed to the first support body by bolts. An L-shaped first foot is bolted to the bottom of the first support body. The warp feed motor drives the gear set inside the warp feed gearbox to rotate, and the warp feed gearbox converts the low torque and high speed of the warp feed motor into high torque and low speed. The first foot makes the device more stable.

[0010] As preferred, the left support body assembly comprises a second support body, a second L-shaped anchor bolt is connected below the second support body, and the second anchor bolt cooperates with the first anchor bolt to make the device more stable; the false warp beam assembly comprises a false warp beam, small square shafts, support sleeves and clamps are sequentially arranged on both sides of the false warp beam, a first gland is fixedly arranged above the first support body through a bolt, a second gland is fixedly arranged above the second support body through a bolt, the support sleeves on both sides of the false warp beam are located below the first gland and the second gland, a warp feeding large gear is fixedly arranged between the small square shaft and the support sleeve in front of the false warp beam, a warp feeding small gear is fixedly arranged on a warp feeding reduction box output shaft through a key and a baffle, the warp feeding small gear and the warp feeding large gear are meshed with each other, power of a warp feeding motor is provided to the false warp beam, and the false warp beam is driven to rotate.

[0011] As preferred, the left side compression roller support arm assembly comprises an arm, a left support is arranged on the left side of the rear end of the arm through a bolt, the other end of the left support is fixed on the second support body through a bolt, a jack is arranged on the left side of the front end of the arm through a bolt, the left side compression roller support arm assembly and the right side compression roller support assembly are driven to rotate around the left support and the right support through the jack respectively, the tension roller is synchronously driven to move, the yarn tension is adjusted, a strip-shaped hole is arranged on the arm, a support plate is arranged on the left side of the strip-shaped hole, the tension roller is rotatably connected to the arm and the support plate, a top plate is arranged in front of the support plate, a screw-moving top rod is arranged on the top plate, the other end of the top rod is in contact with the side edge of the support plate, the support plate is horizontally moved through the top rod, one end of the tension roller is synchronously horizontally moved, the distance between the tension roller and the false warp beam is adjusted, the axis of the tension roller is ensured to be horizontal to the false warp beam, the right side compression roller support assembly and the left side compression roller support arm assembly are same in parts, and the arm of the right side compression roller support assembly is arranged on the right side of the right support, and the right support is fixed on the first support body through a bolt.

[0012] As preferred, a supporting seat is arranged between the yarn guide roller and the wall plate, the yarn guide roller can rotate in the supporting seat, the frictional resistance in the warp feeding process is reduced, and the yarn guide roller adopts a circular tube, a rhombic tube, a rectangular tube, a triangular tube, an elliptical tube and a special-shaped tube, different cross-section shapes of the yarn guide roller are replaced according to different yarn tension requirements.

[0013] Compared with the prior art, the device has the following beneficial effects:

[0014] 1. The utility model discloses a warp uniform device assembly of device through setting up the steel reed and the guide roller that can vertically remove, makes the warp weft direction distribution even, improves the cloth surface neat effect of fabric, the warp tension device assembly outside the machine through setting up left side pressure roller support arm assembly and right side pressure roller support assembly, makes the tension roller parallel movement under the action of jack, can slightly adjust warp tension, improves work efficiency, through setting up the support plate and the roof in the fixed position of tension roller, can adjust the axial direction of tension roller after device installation, makes the tension roller and the axial parallel of dummy warp beam, improves the compactness of fabric yarn spare, the product hand feeling is exquisite.

[0015] 2. The utility model discloses a steel reed support frame and guide roller of device can be adjusted vertically according to the cloth weaving and device installation demand height, reduces the labor intensity of staff, improves work efficiency.

[0016] 3. The utility model discloses a jack of device drives left side pressure roller support arm assembly and right side pressure roller support assembly respectively around left support and right support rotation, synchronous drive tension roller moves, is used for adjusting yarn tension, can better satisfy the guide yarn even yarn requirement, improves product quality, and simultaneously facilitates the replacement yarn, improves work efficiency.

[0017] 4. The utility model discloses a device through the top rod can push support plate horizontal movement, synchronous drive tension roller one end horizontal movement, can adjust the distance between tension roller and dummy warp beam, ensures the axle center level of tension roller and dummy warp beam, makes yarn stress even, improves product quality.

[0018] 5. The utility model discloses a device through setting up the guide roller of multiple section shapes, satisfies the requirement of adjusting different carbon fiber and glass fiber fabric yarn tension. ACCURACY OF DRAWINGS

[0019] Figure 1 It is overall structure schematic drawing of the utility model discloses device;

[0020] Figure 2 It is explosion drawing of the utility model discloses device warp uniform device assembly;

[0021] Figure 3 It is explosion drawing of the utility model discloses device warp feeding device assembly;

[0022] Figure 4 It is explosion drawing of the utility model discloses device warp feeding reduction box assembly;

[0023] Figure 5 It is explosion drawing of the utility model discloses device left support body assembly;

[0024] Figure 6 It is explosion drawing of the utility model discloses device dummy warp beam assembly;

[0025] Figure 7 The utility model discloses device tension roller assembly explosion map;

[0026] Figure 8 The utility model discloses device left side pressure roller support arm assembly explosion map;

[0027] Figure 9 The utility model discloses device right side pressure roller support assembly explosion map;

[0028] Figure 10 The utility model discloses device yarn operation schematic diagram.

[0029] 1, even the device component of the warp; 2, the warp of the machine outside sending device component; 3, warp bobbin creel; 4, back beam;

[0030] 11, wallboard; 12, lower crossbeam; 13, reed support frame; 14, reed; 15, upper crossbeam; 16, guide roller; 17, support seat;

[0031] 21, warp sending reduction box component; 22, left support body component; 23, dummy warp beam component; 24, tension roller assembly;

[0032] 211, warp sending motor; 212, shaft coupling; 213, warp sending reduction box; 214, warp sending pinion; 215, first support body; 216, first gland; 217, first foot; 218, key; 219, baffle;

[0033] 221, second support body; 222, second gland; 223, second foot;

[0034] 231, dummy warp beam; 232, small square shaft; 233, warp sending gear; 234, support sleeve; 235, clamp;

[0035] 24L, left side pressure roller support arm component; 24R, right side pressure roller support component; 241, right support; 242, left support; 243, support arm; 244, support plate; 245, top plate; 246, jack; 247, tension roller. DETAILED DESCRIPTION

[0036] It should be noted that the following detailed description is exemplary and is intended to provide further description of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0037] As Figures 1-10As shown, an outside beam machine of a rapier loom, comprising front and rear connected beam uniform device assembly 1 and machine outside beam device assembly 2, the beam uniform device assembly 1 front setting beam creeling creel 3, the machine outside beam device assembly 2 rear setting back beam 4, the beam uniform device assembly 1 includes two pieces of symmetrically arranged wallboard 11, two pieces of wallboard 11 between connecting lower crossbeam 12, reed support frame 13, upper crossbeam 15 and guide roller 16, two groups of the lower crossbeam 12 are arranged below the wallboard 11, the upper crossbeam 15 is arranged on the upper side of the rear wallboard 11, the reed support frame 13 is arranged on the upper side of the front wallboard 11, the reed support frame 13 is fixed with the reed 14 above, the guide roller 16 is arranged between the reed support frame 13 and the upper crossbeam 15, the wallboard 11, the lower crossbeam 12 and the upper crossbeam 15 constitute the overall frame of the beam uniform device assembly 1, the reed support frame 13 can stably fix the reed 14, the guide roller 16 can increase or decrease the number of installation according to the requirements of cloth weaving, the cross-sectional shape of the guide roller 16 is adjusted according to different yarn tension requirements, the circular guide roller 16 can also adopt different cross-sectional shapes such as rhombic tube, rectangle, triangle, ellipse; The machine outside beam device assembly 2 includes a beam delivery reduction box assembly 21 and a left support body assembly 22, the beam delivery reduction box assembly 21 and the left support body assembly 22 are connected and arranged with a beam creel assembly 23 and a tension roller assembly 24, the tension roller assembly 24 and the beam creel assembly 23 are tangent to each other, the tension roller assembly 24 is provided with a left side pressure roller support arm assembly 24L and a right side pressure roller support assembly 24R on both sides respectively, a tension roller 247 is arranged in the middle of the tension roller assembly 24, the distance between the tension roller 247 and the beam creel 231 can be adjusted through the left side pressure roller support arm assembly 24L and the right side pressure roller support assembly 24R, so that the tension of the yarn can be adjusted according to the requirements of cloth weaving.

[0038] As Figure 2 shown, the wallboard 11 is provided with a vertical strip-shaped through hole at the position connected with the reed support frame 13 and the guide roller 16, the bolts fixing the reed support frame 13 and the guide roller 16 pass through the strip-shaped through hole, and the reed support frame 13 and the guide roller 16 can be vertically adjusted in height according to the requirements of cloth weaving and device installation.

[0039] As Figure 4 shown, the beam delivery reduction box assembly 21 includes a beam delivery motor 211, the output shaft of the beam delivery motor 211 is rotationally connected with a beam delivery reduction box 213 through a shaft coupling 212, the other end of the beam delivery reduction box 213 is fixed on a first support body 215 through bolts, a first anchor 217 of L type is connected below the first support body 215 through bolts, the beam delivery motor 211 drives the internal gear set of the beam delivery reduction box 213 to rotate, the beam delivery reduction box 213 converts the low torque and high speed of the beam delivery motor 211 into high torque and low speed, and the first anchor 217 makes the device more stable.

[0040] As Figures 4-6As shown, the left support body assembly 22 includes a second support body 221, and the second support body 221 is connected with the L-shaped second footing 223 below through bolts, and the second footing 223 cooperates with the first footing 217 to make the device more stable. The false warp beam assembly 23 includes a false warp beam 231, and small square shafts 232, support sleeves 234 and clamps 235 are sequentially arranged on both sides of the false warp beam 231. The first support body 215 is provided with the first gland 216 above through bolt fixation. The second support body 221 is provided with the second gland 222 above through bolt fixation. The support sleeves 234 on both sides of the false warp beam 231 are located below the first gland 216 and the second gland 222. The small square shaft 232 and the support sleeve 234 in front of the false warp beam 231 are fixedly provided with the warp feeding large gear 233. The output shaft of the warp feeding speed reducer 213 is fixedly provided with the warp feeding small gear 214 through the key 218 and the baffle 219. The warp feeding small gear 214 and the warp feeding large gear 233 are meshed with each other, and the power of the warp feeding motor 211 is provided to the false warp beam 231 to drive the false warp beam 231 to rotate.

[0041] As shown in Figures 7-9 The left side compression roller support arm assembly 24L includes a support arm 243, and the left side of the rear end of the support arm 243 is provided with a left bracket 242 through bolts. The other end of the left bracket 242 is fixed on the second support body 221 through bolts. The left side of the front end of the support arm 243 is provided with a jack 246 through bolts. The left side compression roller support arm assembly 24L and the right side compression roller support assembly 24R are driven to rotate around the left bracket 242 and the right bracket 241 respectively through the jack 246, and simultaneously drive the tension roller 247 to move for adjusting the yarn tension. A strip-shaped hole is arranged on the support arm 243, and a support plate 244 is arranged on the left side of the strip-shaped hole. The tension roller 247 is rotatably connected to the support arm 243 and the support plate 244. A top plate 245 is arranged in front of the support plate 244, and a screw-moving top rod is arranged on the top plate 245. The other end of the top rod is in contact with the side edge of the support plate 244. The support plate 244 can be horizontally moved through the top rod, and simultaneously drives one end of the tension roller 247 to move horizontally, so that the distance between the tension roller 247 and the false warp beam 231 can be adjusted, and the horizontal center of the tension roller 247 and the false warp beam 231 is ensured. The right side compression roller support assembly 24R and the left side compression roller support arm assembly 24L have the same parts. The support arm 243 of the right side compression roller support assembly 24R is arranged on the right side of the right bracket 241, and the right bracket 241 is fixed on the first support body 215 through bolts.

[0042] As shown in Figure 2 A supporting seat 17 is arranged between the yarn guide roller 16 and the wallboard 11, and the yarn guide roller 16 can rotate in the supporting seat 17, so that the frictional resistance in the warp yarn feeding process is reduced. The yarn guide roller 16 adopts a circular tube, a rhombic tube, a rectangular tube, a triangular tube, an oval tube and a special-shaped tube, and different cross-sectional shapes of the yarn guide roller 16 can be replaced according to different yarn tension requirements.

[0043] As Figure 10 shown, the device yarn running schematic diagram, yarn from warp yarn creel 3 is extracted, through the warp device assembly 1 adjustment warp weft spacing, mainly through the reed 14 is completed, through the guide roller 16, yarn to machine outside warp device assembly 2, through the tension roller assembly 24 adjustment yarn tension, false warp beam assembly 23 for yarn to provide power transmission, again through the backrest 4 adjustment yarn delivery angle.

[0044] In the description of the present application, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of describing the present application and not requiring the present application to be constructed or operated in a particular orientation, therefore cannot be understood as a limitation on the present application. In the present application, "connected", "connected" should be understood broadly, for example, it can be connected, but also can be detachable connection; can be directly connected, but also indirectly connected through intermediate components, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0045] The above is the preferred operation mode of the present application, the specific operation mode is only used to better understand the idea of the present application. For ordinary skilled in the art, according to the principle of the present application can also make several improvements or equivalent replacement, these improvements or equivalent replacement also considered to fall within the scope of the present application.

Claims

1. An off-machine warp straightening device for a rapier loom, comprising a warp straightening device assembly (1) and an off-machine warp straightening device assembly (2) connected in front, a warp creeling stand (3) being provided in front of the warp straightening device assembly (1), characterized in that: The machine outside the warp device assembly (2) is provided with a rear beam (4), the warp device assembly (1) comprises two symmetrical wallboards (11), the lower crossbeam (12), the reed support frame (13), the upper crossbeam (15) and the guide roller (16) are connected between the two wallboards (11), two groups of the lower crossbeam (12) are arranged below the wallboard (11), the upper crossbeam (15) is arranged on the upper side of the rear wallboard (11), the reed support frame (13) is arranged on the upper side of the front wallboard (11), the reed (14) is fixed above the reed support frame (13), and the guide roller (16) is arranged between the reed support frame (13) and the upper crossbeam (15). The machine outside the warp device assembly (2) comprises a warp let-off speed reducer box assembly (21) and a left support body assembly (22), the warp let-off speed reducer box assembly (21) and the left support body assembly (22) are connected and provided with a false warp beam assembly (23) and a tension roller assembly (24), the tension roller assembly (24) and the false warp beam assembly (23) are in tangential relationship, the left side pressure roller support arm assembly (24L) and the right side pressure roller support assembly (24R) are arranged on the two sides of the tension roller assembly (24), and the tension roller (247) is arranged in the middle of the tension roller assembly (24).

2. The rapier loom's even warp machine out-of-machine warp let-off device according to claim 1, characterized in that: The wallboard (11) is provided with a vertical strip-shaped through hole at the position connected with the reed support frame (13) and the guide roller (16), and the bolts for fixing the reed support frame (13) and the guide roller (16) pass through the strip-shaped through hole.

3. The rapier loom's on-loom let-off device according to claim 1, characterized in that: The warp let-off speed reducer box assembly (21) comprises a warp let-off motor (211), the output shaft of the warp let-off motor (211) is rotationally connected with a warp let-off speed reducer box (213) through a shaft coupling (212), the other end of the warp let-off speed reducer box (213) is fixed on a first support body (215) through bolts, and the first support body (215) is connected with an L-shaped first anchor (217) through bolts.

4. The rapier loom's even warp machine out-of-machine warp let-off device according to claim 3, characterized in that: The left support body assembly (22) comprises a second support body (221), and the second support body (221) is connected with an L-shaped second anchor (223) through bolts; the false warp beam assembly (23) comprises a false warp beam (231), small square shafts (232), support sleeves (234) and clamps (235) are sequentially arranged on the two sides of the false warp beam (231), a first gland (216) is fixedly arranged on the upper side of the first support body (215) through bolts, a second gland (222) is fixedly arranged on the upper side of the second support body (221) through bolts, the support sleeves (234) on the two sides of the false warp beam (231) are located below the first gland (216) and the second gland (222), a warp let-off large gear (233) is fixedly arranged between the small square shaft (232) and the support sleeve (234) in front of the false warp beam (231), a warp let-off small gear (214) is fixedly arranged on the output shaft of the warp let-off speed reducer box (213) through a key (218) and a baffle (219), and the warp let-off small gear (214) and the warp let-off large gear (233) are in meshing relationship.

5. A rapier loom let-off device outside the equalizer according to claim 4, characterized in that: The left side compression roller support assembly (24L) comprises a support arm (243), the left end of the support arm (243) is provided with a left support (242) through a bolt, the other end of the left support (242) is fixed on the second support body (221) through a bolt, the left end of the support arm (243) is provided with a jack (246) through a bolt, a strip-shaped hole is arranged on the support arm (243), a support plate (244) is arranged on the left side of the strip-shaped hole, the tension roller (247) is rotatably connected on the support arm (243) and the support plate (244), a top plate (245) is arranged in front of the support plate (244), a top rod that moves spirally is arranged on the top plate (245), the other end of the top rod is in contact with the side edge of the support plate (244), the right side compression roller support assembly (24R) and the left side compression roller support assembly (24L) are same in parts, the support arm (243) of the right side compression roller support assembly (24R) is arranged on the right side of the right support (241), and the right support (241) is fixed on the first support body (215) through a bolt.

6. The rapier loom's even warp machine out-of-machine warp let-off device according to claim 1, characterized in that: Support seats (17) are arranged between the yarn guide rollers (16) and the wallboards (11), the number of the yarn guide rollers (16) is increased or decreased according to the weaving requirements, and the yarn guide rollers (16) are in the shapes of circular tubes, rhombic tubes, rectangular tubes, triangular tubes, oval tubes and special-shaped tubes.