Width adjusting device of rapier loom

Abstract

The utility model discloses a breadth adjusting device of a rapier loom, which relates to the technical field of rapier looms and comprises a support component and an adjusting component, the support component comprises a fixed guide rail, a sliding seat and an inverted concave temple support, and the adjusting component comprises a first adjusting unit, a second adjusting unit and a locking switching unit. The first adjusting unit is used for adjusting the distance between the temples; the second adjusting unit is used for adjusting the relative positions of the sliding seat and the fixed guide rail, so that the distance between the inverted concave temple bracket and the rapier loom is adjusted; the locking switching unit is used for achieving locking state switching of the first adjusting unit and the second adjusting unit and providing driving force for the first adjusting unit and the second adjusting unit. According to the utility model, through the arrangement of the adjusting assembly, convenient and fast adjustment of the temple distance and the position of the inverted concave temple frame can be realized, manual locking and unlocking operation is not needed in the whole operation process, and the whole adjustment is more efficient and labor-saving.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rapier loom, specifically is a width adjusting device of rapier loom. BACKGROUND

[0002] The rapier loom is used for introducing weft yarn into the shed formed by warp yarn by reciprocating motion of the rapier, and interlacing the warp yarn and the weft yarn to form a fabric. The temple is used for keeping the stability of the fabric edge during weaving, preventing the fabric edge from shrinking, and making the fabric width uniform. The temple is usually installed on both sides of the loom. According to the type and width of the fabric, the form and specification of the temple are different.

[0003] When adjusting the width of the rapier loom, the position of the temple needs to be adjusted synchronously. According to the required width, the temple is moved outward or inward, and then the fixing device is tightened after adjustment, so that the temple is in the appropriate position to control the fabric width.

[0004] According to Chinese Patent No. CN215289149U, a rapier loom full temple edge device in the technical field of rapier loom is disclosed, which comprises a temple support, an adjusting and fixing mechanism is installed on the bottom of the temple support, a cavity is provided on the front side wall of the temple support, a bidirectional screw rod is provided in the cavity, one end of the bidirectional screw rod is connected with a bearing provided on the left side wall in the cavity, a driving motor output end is connected with a driving gear meshing with a driven gear, a sliding block is provided on the left and right outer walls of the bidirectional screw rod, and a temple base is connected to the front end face of the two groups of sliding blocks. The utility model can drive the temple base to move left and right on the front end face of the temple support under the action of the driving motor, the driving gear, the driven gear, the sliding block and the bidirectional screw rod, thereby effectively adjusting the position of the temple device. At the same time, the sliding block can be fixed under the action of the adjusting bolt, the threaded hole and the threaded hole I, thereby fixing the temple base and making the overall stability of the temple device better.

[0005] In the above-mentioned scheme, the position of the temple device can be adjusted by the driving motor, but the adjusting bolt needs to be manually loosened and tightened before and after adjustment. The adjustment operation needs to be further optimized. Therefore, a width adjusting device of rapier loom is provided. UTILITY MODEL CONTENTS

[0006] The utility model aims to solve the problems in the above-mentioned background and provide a width adjusting device of rapier loom.

[0007] To achieve the above object, the utility model provides the following technical scheme: a width adjusting device of a rapier loom, including the support component of fixed guide rail, sliding seat, inverted concave type temple support, the fixed guide rail, sliding seat all are provided with two, two the sliding seat is connected in the top outside of two fixed guide rail respectively, the inverted concave type temple support is fixed in the top of two sliding seats, the inside and outside of inverted concave type temple support and the outside of fixed guide rail, sliding seat are provided with adjusting assembly, the adjusting assembly includes first adjusting unit, second adjusting unit, locking switching unit,

[0008] The first adjusting unit is used for realizing the distance adjustment of the inverted concave type temple support and the rapier loom.

[0009] The second adjusting unit is used for realizing the relative position adjustment of the sliding seat and the fixed guide rail, so as to realize the distance adjustment of the inverted concave type temple support and the rapier loom.

[0010] The locking switching unit is used for realizing the locking state switching of the first adjusting unit and the second adjusting unit, and providing the driving force for the first adjusting unit and the second adjusting unit.

[0011] As a further scheme of the utility model: the first adjusting unit includes bidirectional screw rod, first worm gear reducer, temple mounting seat.

[0012] The bidirectional screw rod is rotatably connected to the inside of the inverted concave type temple support, the first worm gear reducer is installed on one side outside of the inverted concave type temple support, and the output end of the first worm gear reducer is connected and fixed with the bidirectional screw rod.

[0013] The temple mounting seat is provided with two, and the two temple mounting seats are symmetrically distributed on the inside of the inverted concave type temple support and are threadedly connected with the bidirectional screw rod, one end of the temple mounting seat protrudes to the outside of the inverted concave type temple support and is provided with a hole for mounting the temple.

[0014] The outside of the bidirectional screw rod in contact with the two temple mounting seats is formed with two thread grooves with opposite screw directions, the bidirectional screw rod is driven to rotate by the first worm gear reducer for realizing the synchronous and opposite direction movement of the two temple mounting seats, so as to realize the distance adjustment of the temple.

[0015] As a further scheme of the utility model: the second adjusting unit includes fixed rack, second gear, second worm gear reducer.

[0016] The fixed rack is fixed to the bottom outside of the fixed guide rail, the second gear is rotatably connected to one side of the outer wall of the sliding seat and is engaged with the fixed rack.

[0017] The second worm and gear reducer is fixed to the outer side of the sliding base through a support, two groups of fixed racks are symmetrically arranged on the two sides of the sliding base corresponding to the second worm and gear reducer, two second gears are arranged on the two groups of fixed racks, and the output end of the second worm and gear reducer is fixedly connected with one of the second gears, the second gear is driven to rotate through the second worm and gear reducer, and the movement adjustment of the sliding base relative to the fixed guide rail is realized.

[0018] As a further scheme of the utility model: the locking switching unit includes a first gear, a movable toothed plate, an electric push rod;

[0019] Two connecting plates are fixed in the middle of the sliding bases, the electric push rod is fixedly installed on the top of the connecting plate, and the output end of the electric push rod is fixedly connected with the bottom of the movable toothed plate through a connecting piece;

[0020] The movable toothed plate is distributed on the inner bottom of the sliding base, the first gear is rotatably connected to the rear end of the side support mounting seat through a rotating shaft, the inner wall top of the bidirectional screw rod is formed with a gear rack meshing with the first gear, and the movable toothed plate is meshed with the bottom of the first gear, so as to realize the rotation locking of the first gear and the horizontal movement locking of the side support mounting seat;

[0021] The movable toothed plate is driven by the electric push rod to move horizontally to a dislocation state with the first gear, so as to realize the unlocking operation of the side support mounting seat.

[0022] As a further scheme of the utility model: the locking switching unit further includes an n-shaped connecting frame, an extension toothed plate and a spring;

[0023] The n-shaped connecting frame is installed on the top of the sliding base and extends to one side of the sliding base, the extension toothed plate is distributed on one side of the sliding base and is slidably connected with the vertical part of the n-shaped connecting frame, and the top of the extension toothed plate is meshed with the second gear, so as to realize the rotation locking of the second gear;

[0024] The spring is sleeved on the outer side of the vertical part of the n-shaped connecting frame and located on the top of the extension toothed plate, so as to provide downward extrusion force for the extension toothed plate.

[0025] As a further scheme of the utility model: the locking switching unit further includes a double-output-shaft motor and an L-shaped push plate;

[0026] The rear end side of the movable toothed plate is connected to the double-output-shaft motor through a connecting frame, the double-output-shaft motor is distributed in the middle of the first worm and gear reducer and the second worm and gear reducer, the two output ends of the double-output-shaft motor are aligned with the input ends of the first worm and gear reducer and the second worm and gear reducer, the double-output-shaft motor is horizontally moved to be butt-jointed with the input ends of the first worm and gear reducer and the second worm and gear reducer, so as to provide driving for the operation of the first worm and gear reducer and the second worm and gear reducer.

[0027] The two L-shaped push plates are symmetrically fixed to the rear end of the moving tooth plate, and the two L-shaped push plates correspond to the two telescopic tooth plates one by one.

[0028] The L-shaped push plate moves backward to contact the telescopic tooth plate to extrude the telescopic tooth plate to move upward, so as to realize the unlocking operation of the second gear.

[0029] As a further scheme of the utility model, the position where the L-shaped push plate contacts the telescopic tooth plate is in an arc surface structure, the front end of the fixed tooth bar is fixed with a stop block for intercepting the second gear, and the top of the stop block is lower than the bottom of the connecting plate.

[0030] Compared with the prior art, the utility model has the beneficial effects that:

[0031] The convenient adjustment of the spacer distance and the inverted concave spacer support position can be realized by setting the adjusting assembly, manual locking and unlocking operations are not needed in the overall operation process, and the overall adjustment is more efficient and labor-saving. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a structural schematic view of the utility model;

[0033] Figure 2 It is a structural schematic view of another perspective of the utility model;

[0034] Figure 3 It is a structural schematic view of another perspective of the utility model; Figure 2 It is an enlarged view of position A in the middle;

[0035] Figure 4 It is a split schematic view of the fixed guide rail and the sliding seat of the utility model;

[0036] Figure 5 It is a split schematic view of part of the adjusting assembly of the utility model.

[0037] In the drawing: 1, support assembly; 101, fixed guide rail; 102, sliding seat; 103, inverted concave spacer support; 104, connecting plate; 2, adjusting assembly; 201, bidirectional screw rod; 202, first worm gear reducer; 203, spacer mounting seat; 204, first gear; 205, moving tooth plate; 206, electric push rod; 207, fixed tooth bar; 208, second gear; 209, second worm gear reducer; 210, double-shaft motor; 211, n-shaped connecting frame; 212, telescopic tooth plate; 213, spring; 214, L-shaped push plate. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0039] Please refer to Figures 1 to 5 In the embodiments of the utility model, a width adjusting device of a rapier loom comprises a support assembly 1 composed of fixed guide rails 101, sliding seats 102 and inverted concave temple support brackets 103, the fixed guide rails 101 and the sliding seats 102 are both provided with two, the two sliding seats 102 are respectively slidably connected to the top outer sides of the two fixed guide rails 101, the inverted concave temple support bracket 103 is fixed to the top of the two sliding seats 102, the inner and outer sides of the inverted concave temple support bracket 103 and the outer sides of the fixed guide rails 101 and the sliding seats 102 are provided with adjusting assemblies 2, the adjusting assemblies 2 comprise first adjusting units, second adjusting units and locking switching units, the first adjusting units are used for realizing the distance adjustment of the temple, the second adjusting units are used for realizing the relative position adjustment of the sliding seat 102 and the fixed guide rail 101, so as to realize the distance adjustment of the inverted concave temple support bracket 103 and the rapier loom, the locking switching units are used for realizing the locking state switching of the first adjusting units and the second adjusting units, and the first adjusting units and the second adjusting units are provided with driving forces;

[0040] The first adjusting unit comprises a bidirectional screw rod 201, a first worm and gear reducer 202 and a temple mounting seat 203.

[0041] The bidirectional screw rod 201 is rotatably connected to the inner side of the inverted concave temple support bracket 103, the first worm and gear reducer 202 is mounted to the outer side of the inverted concave temple support bracket 103, and the output end of the first worm and gear reducer 202 is fixedly connected with the bidirectional screw rod 201.

[0042] The temple mounting seat 203 is provided with two, the two temple mounting seats 203 are symmetrically distributed on the inner side of the inverted concave temple support bracket 103 and are threadedly connected with the bidirectional screw rod 201, one end of the temple mounting seat 203 protrudes to the outside of the inverted concave temple support bracket 103 and is provided with a hole for mounting the temple.

[0043] The outer side of the bidirectional screw rod 201 in contact with the two temple mounting seats 203 is formed with two thread grooves with opposite screw directions, the bidirectional screw rod 201 is driven to rotate by the first worm and gear reducer 202, so as to realize the synchronous and opposite movement of the two temple mounting seats 203, thereby realizing the distance adjustment of the temple.

[0044] The second adjusting unit comprises a fixed rack 207, a second gear 208 and a second worm and gear reducer 209.

[0045] The fixed rack 207 is fixed to the bottom of the outer side of the fixed guide rail 101, and the second gear 208 is rotatably connected to the outer wall of the slide base 102 and engaged with the fixed rack 207;

[0046] The second worm gear reducer 209 is fixed to the outer side of the slide base 102 through a support, and the two sides of the fixed guide rail 101 corresponding to the second worm gear reducer 209 are symmetrically provided with two groups of fixed racks 207 and second gears 208, and the output end of the second worm gear reducer 209 is fixedly connected with one of the second gears 208, so that the second gear 208 is driven to rotate by the second worm gear reducer 209, for realizing the movement adjustment of the slide base 102 relative to the fixed guide rail 101;

[0047] The locking switching unit comprises a first gear 204, a movable rack plate 205, an electric push rod 206, a double-output-shaft motor 210, an L-shaped push plate 214, an n-shaped connecting frame 211, an extension rack plate 212, and a spring 213;

[0048] The connecting plate 104 is fixed in the middle of the two slide bases 102, and the electric push rod 206 is fixedly installed on the top of the connecting plate 104. The output end of the electric push rod 206 is fixedly connected with the bottom of the movable rack plate 205 through a connecting piece;

[0049] The movable rack plate 205 is distributed on the bottom of the inner side of the slide base 102, the first gear 204 is rotatably connected to the rear end of the side support mounting seat 203 through a rotating shaft, the inner wall top of the bidirectional screw 201 is formed with a rack engaged with the first gear 204, and the movable rack plate 205 is engaged with the bottom of the first gear 204, for realizing the rotation locking of the first gear 204 and the horizontal movement locking of the side support mounting seat 203;

[0050] The movable rack plate 205 is driven by the electric push rod 206 to move horizontally to a dislocation state with the first gear 204, for realizing the unlocking operation of the side support mounting seat 203;

[0051] The n-shaped connecting frame 211 is installed on the top of the slide base 102 and extends to one side of the slide base 102, the extension rack plate 212 is distributed on one side of the slide base 102 and is slidably connected with the vertical part of the n-shaped connecting frame 211, and the top of the extension rack plate 212 is engaged with the top of the second gear 208, for realizing the rotation locking of the second gear 208;

[0052] The spring 213 is sleeved on the outer side of the vertical part of the n-shaped connecting frame 211 and located on the top of the extension rack plate 212, for providing a downward extrusion force for the extension rack plate 212;

[0053] The rear end side of the mobile tooth plate 205 is connected to the double-output shaft motor 210 through the connecting frame, the double-output shaft motor 210 is distributed in the middle of the first worm gear reducer 202 and the second worm gear reducer 209, and the two output ends of the double-output shaft motor 210 are aligned with the input ends of the first worm gear reducer 202 and the second worm gear reducer 209, and the double-output shaft motor 210 is horizontally moved to be connected with the input ends of the first worm gear reducer 202 and the second worm gear reducer 209, so as to provide driving for the operation of the first worm gear reducer 202 and the second worm gear reducer 209.

[0054] The L-shaped push plate 214 is provided with two, and the two L-shaped push plates 214 are symmetrically fixed to the rear end of the mobile tooth plate 205, and the two L-shaped push plates 214 correspond to the positions of the two telescopic tooth plates 212 one by one.

[0055] The L-shaped push plate 214 is moved backward to contact the telescopic tooth plate 212 for extruding the telescopic tooth plate 212 to move upward, so as to realize the unlocking operation of the second gear 208.

[0056] In this embodiment, it needs to be supplemented that the fixed guide rail 101 is fixed to the rack of the rapier loom through bolts, and the use principle of the device is as follows:

[0057] In the initial state, the double-output shaft motor 210 is located in the central state, that is, the double-output shaft motor 210 does not contact the first worm gear reducer 202 and the second worm gear reducer 210 at this time, at the same time, the mobile tooth plate 205 is in meshing state with the first gear 204, and cooperates with the self-locking function of the first worm gear reducer 202, so as to realize the position stability of the two edge support mounting seats 203, at the same time, the telescopic tooth plate 212 is in meshing state with the second gear 208 under the elastic force of the spring 213, and cooperates with the self-locking function of the second worm gear reducer 210, so as to realize the position stability of the slide 102 and the fixed guide rail 101, so as to ensure the stable use of the edge support;

[0058] If it is needed to adjust the position of the inverted concave edge support frame 103, the output shaft of the electric push rod 206 is retracted by starting the electric push rod 206, so that the mobile tooth plate 205, the double-output shaft motor 210 and the L-shaped push plate 214 are moved backward as a whole, the L-shaped push plate 214 contacts and extrudes the telescopic tooth plate 212, the telescopic tooth plate 212 moves upward and extrudes the spring 213 to further contract under the extrusion force, finally, the telescopic tooth plate 212 is separated from the second gear 208, that is, the locking of the second gear 208 is released, at the same time, the rear end output shaft of the double-output shaft motor 210 is limitingly connected with the input shaft of the second worm gear reducer 210 (it needs to be supplemented that the mobile tooth plate 205 and the first gear 204 remain in contact and meshing state in this state);

[0059] At this time, the double-shaft motor 210 is started, and the double-shaft motor 210 drives a second gear 208 to rotate through the second worm gear reducer 210, and under the limiting action of the corresponding fixed rack 207, the slide base 102 and the inverted concave-shaped side support frame 103 move as a whole, and other second gears 208 rotate as driven, so that the distance adjustment of the inverted concave-shaped side support frame 103 and the rapier machine is realized, and after the adjustment is completed, the electric push rod 206 is reset to the initial state.

[0060] If it is necessary to adjust the distance between the two side supports, the electric push rod 206 is started to make the output shaft extend forward, so that the movable rack plate 205, the double-shaft motor 210 and the L-shaped push plate 214 move forward as a whole, finally, the movable rack plate 205 is distributed in a staggered manner with the first gear 204, and the locking of the first gear 204 is released, and at the same time, the front output shaft of the double-shaft motor 210 is connected with the input shaft of the first worm gear reducer 202, at this time, the double-shaft motor 210 is started, and the double-shaft motor 210 drives the bidirectional screw rod 201 to rotate through the first worm gear reducer 202, so that the two side support mounting seats 203 move synchronously and in opposite directions, thereby realizing the distance adjustment of the side supports, and during the process, the first gear 204 rotates as driven, and after the position of the side support is determined, the electric push rod 206 is reset to the initial state.

[0061] Through the cooperation of the above-mentioned multiple parts, the distance between the side supports and the position of the inverted concave-shaped side support frame 103 can be conveniently adjusted, and during the overall operation process, manual locking and unlocking operations are not required, and the overall adjustment is more efficient and labor-saving.

[0062] Please refer to Figure 2 The positions where the L-shaped push plate 214 and the telescopic rack plate 212 are in contact are arc-shaped structures, the front end of the fixed rack 207 is fixed with a blocking block for intercepting the second gear 208, and the top of the blocking block is lower than the bottom of the connecting plate 104.

[0063] In the embodiment, the arc-shaped structures of the L-shaped push plate 214 and the telescopic rack plate 212 are used to reduce the frictional resistance of the contact and extrusion of the two.

[0064] The blocking block can limit the forward movement position of the slide base 102, so as to ensure that the slide base 102 and the fixed guide rail 101 have sufficient connection length, and the blocking block does not interfere with the movement of the connecting plate 104.

[0065] The above-mentioned is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A width adjusting device of a rapier loom, comprising a bracket assembly (1) composed of fixed guide rails (101), sliding seats (102) and inverted concave temple brackets (103), the fixed guide rails (101) and the sliding seats (102) are both provided with two, the two sliding seats (102) are respectively slidingly connected to the top outer sides of the two fixed guide rails (101), and the inverted concave temple brackets (103) are fixed to the top of the two sliding seats (102), characterized in that, The inner and outer sides of the reverse concave side support bracket (103) and the outer side of the fixed guide rail (101) and the slide base (102) are provided with an adjusting assembly (2), the adjusting assembly (2) comprises a first adjusting unit, a second adjusting unit and a locking switching unit; The first adjusting unit is used for realizing the distance adjustment of the side support; The second adjusting unit is used for realizing the relative position adjustment of the slide base (102) and the fixed guide rail (101), so as to realize the distance adjustment of the reverse concave side support bracket (103) and the sword rod machine; The locking switching unit is used for realizing the locking state switching of the first adjusting unit and the second adjusting unit, and providing driving force for the first adjusting unit and the second adjusting unit.

2. A gauge width adjustment device for a rapier loom according to claim 1, characterized in that The first adjusting unit comprises a bidirectional screw rod (201), a first worm gear reducer (202) and a side support mounting seat (203); The bidirectional screw rod (201) is rotationally connected to the inner side of the reverse concave side support bracket (103), the first worm gear reducer (202) is mounted on one side of the outer side of the reverse concave side support bracket (103), and the output end of the first worm gear reducer (202) is fixedly connected with the bidirectional screw rod (201); The side support mounting seat (203) is provided with two, the two side support mounting seats (203) are symmetrically distributed on the inner side of the reverse concave side support bracket (103) and are threadedly connected with the bidirectional screw rod (201), one end of the side support mounting seat (203) protrudes to the outside of the reverse concave side support bracket (103) and is provided with a hole for mounting the side support; The outer side of the bidirectional screw rod (201) in contact with the two side support mounting seats (203) is formed with two thread grooves with opposite screw directions, the bidirectional screw rod (201) is driven to rotate by the first worm gear reducer (202), so as to realize the synchronous and opposite movement of the two side support mounting seats (203), thereby realizing the distance adjustment of the side support.

3. A gauge width adjustment device for a rapier loom according to claim 2, characterized in that The second adjusting unit comprises a fixed rack (207), a second gear (208) and a second worm gear reducer (209); The fixed rack (207) is fixed to the bottom of the outer side of the fixed guide rail (101), the second gear (208) is rotationally connected to one side of the outer wall of the slide base (102) and is engaged with the fixed rack (207); The second worm gear reducer (209) is fixed to one side of the outer side of the slide base (102) through a support, two groups of fixed racks (207) and second gears (208) are symmetrically arranged on the two sides of the fixed guide rail (101) and the slide base (102) corresponding to the second worm gear reducer (209), and the output end of the second worm gear reducer (209) is fixedly connected with one of the second gears (208), the second gear (208) is driven to rotate by the second worm gear reducer (209), so as to realize the movement adjustment of the slide base (102) relative to the fixed guide rail (101).

4. A gauge width adjustment device for a rapier loom according to claim 3, characterized in that The locking switching unit comprises a first gear (204), a movable toothed plate (205) and an electric push rod (206). The connecting plate (104) is fixed in the middle of the two sliding seats (102), the electric push rod (206) is fixedly installed on the top of the connecting plate (104), and the output end of the electric push rod (206) is fixedly connected with the bottom of the movable gear plate (205) through a connecting piece. The movable gear plate (205) is arranged on the inner bottom of the sliding seat (102), the first gear (204) is rotatably connected to the rear end of the side support mounting seat (203) through a rotating shaft, the inner wall top of the two-way screw rod (201) is formed with a rack meshing with the first gear (204), and the movable gear plate (205) is meshed with the bottom of the first gear (204), so as to realize the rotation locking of the first gear (204) and the horizontal movement locking of the side support mounting seat (203). The movable gear plate (205) is driven by the electric push rod (206) to move horizontally to a dislocation state with the first gear (204), so as to realize the unlocking operation of the side support mounting seat (203).

5. A gauge width adjustment device for a rapier loom according to claim 4, characterized in that The locking switching unit further comprises an n-shaped connecting frame (211), a telescopic gear plate (212) and a spring (213). The n-shaped connecting frame (211) is installed on the top of the sliding seat (102) and extends to one side of the sliding seat (102), the telescopic gear plate (212) is arranged on one side of the sliding seat (102) and is slidably connected with the vertical part of the n-shaped connecting frame (211), and the top of the telescopic gear plate (212) is meshed with the top of the second gear (208), so as to realize the rotation locking of the second gear (208). The spring (213) is sleeved outside the vertical part of the n-shaped connecting frame (211) and located on the top of the telescopic gear plate (212), so as to provide a downward extrusion force for the telescopic gear plate (212).

6. A gauge width adjustment device for a rapier loom according to claim 4, wherein The locking switching unit further comprises a double-output-shaft motor (210) and an L-shaped push plate (214). The rear end side of the movable gear plate (205) is connected to the double-output-shaft motor (210) through a connecting frame, the double-output-shaft motor (210) is arranged in the middle of the first worm gear reducer (202) and the second worm gear reducer (209), the two output ends of the double-output-shaft motor (210) are aligned with the input ends of the first worm gear reducer (202) and the second worm gear reducer (209), the double-output-shaft motor (210) is horizontally moved to be connected with the input ends of the first worm gear reducer (202) and the second worm gear reducer (209), so as to drive the operation of the first worm gear reducer (202) and the second worm gear reducer (209); The L-shaped push plate (214) is provided with two L-shaped push plates (214), the two L-shaped push plates (214) are symmetrically fixed on the rear end of the movable gear plate (205), and the two L-shaped push plates (214) correspond to the positions of the two telescopic gear plates (212) one by one. The L-shaped push plate (214) is moved backward to contact the telescopic gear plate (212) to extrude the telescopic gear plate (212) to move upward, so as to realize the unlocking operation of the second gear (208).

7. A gauge width adjustment device for a rapier loom according to claim 6, characterized in that The L-shaped push plate (214) is in arc surface structure at the position where it is in contact with the telescopic tooth plate (212), the front end of the fixed rack (207) is fixed with a stopper intercepting the second gear (208), and the top of the stopper is lower than the bottom of the connecting plate (104) in horizontal height.

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