Thick and thin weft yarn alternate feeding device for textile machine

Abstract

The utility model discloses a thick and thin weft yarn alternate feeding device for a textile machine. The thick and thin weft yarn alternate feeding device comprises a rack and an alternate feeding mechanism. The inner side of the rack is rotationally connected with a warp winding roller, warp is wound on the warp winding roller, and an empty groove is formed in the rack; the alternate feeding mechanism comprises a supporting plate arranged on the rack, and a stepping motor is fixedly installed at the top of the supporting plate. According to the thick and thin weft yarn alternate feeding device for the textile machine, the alternate feeding mechanism is arranged on the rack, so that a stepping motor can drive a gear to rotate back and forth after being started, and two racks can drive a movable plate to ascend and descend under the action of the gear; furthermore, the two weft yarn handles through which the thick weft yarns and the thin weft yarns respectively penetrate can perform an alternate feeding action; by means of the arrangement, the problem that in the prior art, due to the fact that the stiffness coefficient is reduced in the frequent stretching and retracting process of a spring, the position of a weft handle deviates after the weft handle is used for a period of time is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of textile machines, in particular to a thick and thin weft yarn alternate feeding device for a textile machine. Background Art

[0002] As is known to all, glass fiber mesh cloth is a fabric woven by interweaving warp yarns and weft yarns at right angles, and is usually woven on a textile machine; in order to solve the problem that a textile machine can only feed one weft yarn of exactly the same thickness into the warp yarn for weaving, the China Patent Network discloses a thick and thin weft yarn alternating feeding device for a textile machine with a publication number of CN219315193U. The thick and thin weft yarn alternating feeding device for a textile machine includes a frame, and is characterized in that: two weft yarn handles are provided on the inner side of the frame, a threading hole is provided at the bottom of the weft yarn handle, a spring is connected to the top of the weft yarn handle, and an electric push rod is inserted into the spring. The beneficial effect of the utility model is that two weft yarns of different thicknesses can be alternately fed into the warp for weaving, the structure is simple, the efficiency is high, the weaving quality is high, and the use requirements of different glass fiber mesh cloths are met.

[0003] However, when the thick and thin weft yarn alternating feeding device in the above patent is in use, it mainly realizes the alternating up and down movement of the two weft yarn handles through two electric push rods and the contraction force of the spring. However, since the stiffness coefficient of the spring will decrease after frequent extension and contraction, the weft yarn handle will gradually deviate from the original feeding position of the weft line after being used for a period of time. For this reason, we propose a thick and thin weft yarn alternating feeding device for a textile machine.

[0004] The above information disclosed in the Background section is only for enhancement of understanding of the background of the present disclosure and therefore it may include information that does not constitute the prior art that is already known to one of ordinary skill in the art. Utility Model Content

[0005] The utility model aims to provide a thick and thin weft yarn alternately feeding device for a textile machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thick and thin weft yarn alternating feeding device for a textile machine, comprising: a frame and an alternating feeding mechanism;

[0007] A warp winding roller is rotatably connected to the inner side of the frame, warp is wound on the warp winding roller, and an empty slot is opened inside the frame;

[0008] The alternating feeding mechanism includes a support plate arranged on a frame, a stepper motor is fixedly mounted on the top of the support plate, an output shaft of the stepper motor is fixedly connected to a gear, two racks are meshingly connected to the outer side of the gear, one side of the two racks is fixedly connected to a movable plate, one side of the movable plate passes through an empty slot and is fixedly connected to a weft handle, the outer side of the weft handle is slidably connected to a limiting block, one side of the limiting block is fixedly connected to the frame, and a yarn threading hole is opened inside the weft handle.

[0009] By adopting the above technical scheme, two weft yarns, one thick and one thin, can be passed through the yarn threading holes of the two weft yarn handles respectively, and then the stepper motor is started, so that the stepper motor can drive the gear to rotate back and forth clockwise and counterclockwise, so that the two racks can move up and down respectively under the action of the gears, and then the two weft yarn handles can move up and down alternately through the movable plate under the action of the racks, so that the weft yarn handle that moves down can feed the corresponding weft thread into the warp thread wound on the warp winding roller, so that the thick and thin weft yarns can be fed alternately.

[0010] Preferably, the number of the movable plates is two, and the two movable plates are movably connected inside the empty slot.

[0011] By adopting the above technical solution, the stability of the movable plate when moving can be improved, thereby improving the stability of the two weft handles when moving up and down.

[0012] Preferably, two limiting rods are fixedly embedded in the hollow groove, and outer side walls of the two limiting rods are both slidably connected to the movable plate.

[0013] By adopting the above technical solution, the stability of the movable plate when moving up and down can be further improved.

[0014] Preferably, one side of the frame is fixedly connected to a support base, and one side of the support plate is slidably connected to the support base.

[0015] By adopting the above technical solution, the height position of the motor can be adjusted by sliding the support plate on the support seat, thereby facilitating operations such as maintenance of the two weft yarn handles.

[0016] Preferably, a slide groove is provided inside the support seat and the support plate, and a threaded rod is fixedly connected to the outer side of the frame, and one end of the threaded rod passes through the interior of the slide groove.

[0017] By adopting the above technical solution, the height position of the support plate can be easily positioned.

[0018] Preferably, a nut is threadedly sleeved on the threaded rod, and the nut is tightly attached to one side of the support plate.

[0019] By adopting the above technical solution, the support plate can be fixed by tightening the nut.

[0020] Preferably, a switch for controlling the operating state of the stepper motor is fixedly mounted on the frame.

[0021] By adopting the above technical solution, it is possible to easily control the stepper motor.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] The coarse and fine weft alternating feeding device for a textile machine is provided with an alternating feeding mechanism on a frame, so that after the stepping motor is started, it can drive the gear to rotate back and forth, so that the two racks can drive the movable plate to rise and fall under the action of the gear, and then the two weft handles respectively penetrated by the coarse weft yarn and the fine weft yarn can perform the action of alternating feeding; through the above arrangement, the problem in the prior art that the spring's stiffness coefficient is reduced during frequent extension and contraction, thereby causing the weft handle to deviate from its position after being used for a period of time is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a thick and thin weft yarn alternate feeding device for a textile machine of the utility model;

[0025] Figure 2 It is an enlarged schematic diagram of area A of the structural schematic diagram of the thick and thin weft yarn alternate feeding device for a textile machine of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the hollow slot and the limit rod of the thick and thin weft yarn alternate feeding device for a textile machine of the utility model;

[0027] Figure 4 The utility model is a schematic structural diagram of a weft yarn handle and a yarn threading hole in a thick and thin weft yarn alternate feeding device for a textile machine.

[0028] In the figure: 1, frame; 10, warp winding roller; 11, empty slot; 2, alternating feeding mechanism; 20, support plate; 21, stepping motor; 22, gear; 23, rack; 24, movable plate; 25, weft handle; 26, limit block; 27, limit rod; 28, slide groove; 29, yarn threading hole; 201, support seat; 202, threaded rod; 203, nut. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-Figure 4 , the utility model provides a technical solution: a thick and thin weft yarn alternating feeding device for a textile machine, comprising: a frame 1 and an alternating feeding mechanism 2;

[0031] First, in order to pass two weft yarns, one thick and one thin, through the threading holes 29 of the two weft yarn handles 25 respectively, the stepper motor 21 is started, so that the stepper motor 21 can drive the gear 22 to rotate back and forth clockwise and counterclockwise, so that the two racks 23 can move up and down respectively under the action of the gear 22, and then the two weft yarn handles 25 can move up and down alternately through the movable plate 24 under the action of the rack 23, so that the downward moving weft yarn handle 25 can feed the corresponding weft yarn into the warp yarn wound on the warp yarn winding roller 10, so that the thick and thin weft yarns can be fed alternately; the inner side of the frame 1 is connected to the warp yarn winding roller 10 for rotation. 0, the warp is wound on the warp winding roller 10, and an empty slot 11 is opened inside the frame 1; the alternating feeding mechanism 2 includes a support plate 20 arranged on the frame 1, a stepper motor 21 is fixedly installed on the top of the support plate 20, the output shaft of the stepper motor 21 is fixedly connected with a gear 22, the outer side of the gear 22 is meshed and connected with two racks 23, one side of the two racks 23 is fixedly connected with a movable plate 24, one side of the movable plate 24 passes through the empty slot 11 and is fixedly connected with a weft handle 25, the outer side of the weft handle 25 is slidably connected with a limit block 26, one side of the limit block 26 is fixedly connected to the frame 1, and a threading hole 29 is opened inside the weft handle 25;

[0032] Secondly, in order to improve the stability of the movable plate 24 when it moves, thereby improving the stability of the two weft handles 25 when they move up and down, there are two movable plates 24, and the two movable plates 24 are movably connected to the inside of the empty slot 11. Two limit rods 27 are fixedly embedded in the inside of the empty slot 11, and the outer side walls of the two limit rods 27 are slidably connected to the movable plate 24; in order to adjust the height position of the motor by sliding the support plate 20 on the support seat 201, thereby facilitating maintenance and other operations on the two weft handles 25, a support plate 20 is fixedly connected to one side of the frame 1 The support base 201 is a base 201, and one side of the support plate 20 is slidably connected to the support base 201; in order to fix the support plate 20 by tightening the nut 203, a slide groove 28 is provided inside the support base 201 and the support plate 20, and a threaded rod 202 is fixedly connected to the outside of the frame 1, one end of the threaded rod 202 passes through the inside of the slide groove 28, and a nut 203 is threadedly sleeved on the threaded rod 202, and the nut 203 is tightly attached to one side of the support plate 20; in order to facilitate the control of the stepper motor 21, a switch for controlling the operating state of the stepper motor 21 is fixedly installed on the frame 1.

[0033] According to the above technical scheme, the working steps of this scheme are summarized and sorted out: when in use, first pass two weft yarns, one thick and one thin, through the yarn threading holes 29 of the two weft yarn handles 25 respectively, and then start the stepper motor 21, so that the stepper motor 21 can drive the gear 22 to rotate back and forth clockwise and counterclockwise, so that the two racks 23 can move up and down respectively under the action of the gear 22, and then the two weft yarn handles 25 can move up and down alternately through the movable plate 24 under the action of the rack 23, so that the downward moving weft yarn handle 25 can feed the corresponding weft thread into the warp thread wound on the warp winding roller 10, so that the thick and thin weft yarns can be fed alternately.

[0034] In summary: the coarse and thin weft alternating feeding device for the textile machine is provided with an alternating feeding mechanism 2 on the frame 1, so that the stepping motor 21 can drive the gear 22 to rotate back and forth after being started, so that the two racks 23 can drive the movable plate 24 to rise and fall under the action of the gear 22, and then the two weft handles 25 respectively penetrated by the coarse weft yarn and the thin weft yarn can perform the action of alternating feeding; through the above arrangement, the problem in the prior art that the spring's stiffness coefficient will be reduced during frequent extension and contraction, thereby causing the weft handle 25 to deviate from its position after being used for a period of time is solved.

[0035] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for alternately feeding thick and thin weft yarns for a textile machine, characterized in that: include: A frame (1) and an alternating feeding mechanism (2); A warp winding roller (10) is rotatably connected to the inner side of the frame (1), warp is wound on the warp winding roller (10), and an empty slot (11) is provided inside the frame (1); The alternating feeding mechanism (2) comprises a support plate (20) arranged on a frame (1), a stepper motor (21) is fixedly mounted on the top of the support plate (20), an output shaft of the stepper motor (21) is fixedly connected to a gear (22), the outer side of the gear (22) is meshingly connected to two racks (23), one side of each of the two racks (23) is fixedly connected to a movable plate (24), one side of the movable plate (24) passes through the empty slot (11) and is fixedly connected to a weft handle (25), the outer side of the weft handle (25) is slidably connected to a limit block (26), one side of the limit block (26) is fixedly connected to the frame (1), and a threading hole (29) is provided inside the weft handle (25).

2. A thick and thin weft yarn alternating feeding device for a textile machine according to claim 1, characterized in that: The number of the movable plates (24) is two, and the two movable plates (24) are movably connected inside the empty slot (11).

3. A thick and thin weft yarn alternating feeding device for a textile machine according to claim 1, characterized in that: Two limiting rods (27) are fixedly embedded in the interior of the empty slot (11), and the outer side walls of the two limiting rods (27) are both slidably connected to the movable plate (24).

4. A thick and thin weft yarn alternating feeding device for a textile machine according to claim 1, characterized in that: One side of the frame (1) is fixedly connected to a support seat (201), and one side of the support plate (20) is slidably connected to the support seat (201).

5. A thick and thin weft yarn alternating feeding device for a textile machine according to claim 4, characterized in that: The support seat (201) and the support plate (20) are both provided with a slide groove (28), and the outer side of the frame (1) is fixedly connected with a threaded rod (202), and one end of the threaded rod (202) passes through the interior of the slide groove (28).

6. A thick and thin weft yarn alternating feeding device for a textile machine according to claim 5, characterized in that: A nut (203) is threadedly mounted on the threaded rod (202), and the nut (203) is tightly attached to one side of the support plate (20).

7. A thick and thin weft yarn alternating feeding device for a textile machine according to claim 5, characterized in that: A switch for controlling the operating state of the stepping motor (21) is fixedly mounted on the frame (1).

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