CN211570927U

CN211570927U - Pulley driving jacquard

Info

Publication number: CN211570927U
Application number: CN201922242552.4U
Authority: CN
Inventors: 柳春法; 朱健
Original assignee: Suzhou Lianyou Manufacturing Co ltd
Current assignee: Suzhou Lianyou Manufacturing Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-09-25
Anticipated expiration: 2029-12-13

Abstract

The utility model relates to a pulley-driven jacquard, which comprises a frame; the knitting mechanism comprises a knitting platform, a lifting rod and a knitting needle, wherein the lifting rod is arranged on the rack in a sliding manner from two end parts; the driving mechanism comprises a movable pulley positioned on the lifting rod; the first fixed pulley and the second fixed pulley are arranged on the frame and are arranged on two opposite sides of the movable pulley; the first winding wheel and the second winding wheel are respectively arranged on two opposite sides of the frame; the two end parts are respectively fixed on the first winding wheel and the second winding wheel at two sides and sequentially pass through the traction rope of the first fixed pulley, the movable pulley and the second fixed pulley; and the first driver and the second driver respectively drive the first winding wheel and the second winding wheel to rotate so as to wind or release the traction rope, wherein the movable pulley and the lifting rod are driven to move up and down during the winding or the releasing of the traction rope. The utility model discloses can be more stable and realize the up-and-down motion of knitting needle more simply, and the fault rate is lower, utilize the cooperation of movable pulley and fixed pulley simultaneously, can provide the ability of shuttling of knitting needle in the twinkling of an eye, simple structure, with low costs.

Description

Pulley driving jacquard

Technical Field

The utility model belongs to the jacquard machine field, concretely relates to pulley-driven jacquard machine.

Background

As is known, a jacquard machine is a textile tool, whose working principle is: on a jacquard, a pattern plate is sleeved on a pattern cylinder, the pattern cylinder is pressed against a horizontal needle once when one weft is woven, when holes are formed in the pattern plate, the head end of the horizontal needle extends into the pattern plate and the holes of the pattern cylinder, and the hook end of a straight needle is still hung on a lifting knife; when the lifting knife rises, the straight needle rises along with the lifting knife, the harness wire is driven to lift through the first line hook and the harness wire, and the warp wire penetrating into the harness eye also lifts along with the lifting, so that the upper layer of the shed is formed; meanwhile, a heald hammer is hung in a lower heald ring of the heald, and when the shed is closed, the heald hammer plays a role in heald returning depending on the weight of the heald hammer. When no hole is formed on the card, the horizontal needle retreats and passes through the raised head to push the corresponding straight needle, so that the hook end of the straight needle is separated from the lifting knife, the harness wire and the warp wire which are connected with the straight needle are not lifted, and the warp wire is sunk to form the lower layer of the shed. The movement of each warp yarn is determined according to the holes or non-holes on the pattern plate, and the holes on the pattern plate are rolled according to the design requirements of patterns and textures, so that the movement of the warp yarns also meets the requirements of the patterns and the textures.

At present, in actual operation, a knitting needle of a jacquard machine needs to perform reciprocating penetrating motion to form an upper layer and a lower layer of a shed, and an adopted driving mechanism has a plurality of parts and is inconvenient to implement. For example, chinese patent CN 209412410U discloses a jacquard, knitting mechanism installs on the lifting bar, the lifting bar both ends respectively with two fixed plate sliding connection, driving motor sets up the one side of keeping away from the lifting bar at the fixed plate, and driving motor's main shaft runs through the fixed plate and installs oval gyro wheel, lifting bar top side is provided with two connecting rods, the one end that the lifting bar was kept away from to the connecting rod is provided with the connecting block, the spout has been seted up on the oval gyro wheel outer fringe face, the connecting block top is formed with the slider with spout sliding connection. The during operation, the oval gyro wheel of driving motor drive rotates, and at this moment, the slider will be followed the spout motion and driven the lift bar and move towards or keep away from the organism direction, and then drives the knitting subassembly orientation of installing on the lift bar or keep away from the organism direction motion to treat the processing product and process on the organism.

However, this embodiment has one significant drawback: once the oval roller and the connecting block are blocked by sliding, the up-and-down lifting of the lifting rod is directly influenced, and the movement of the needle head is influenced.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide a pulley drive type jacquard machine.

In order to achieve the above object, the present invention provides a pulley-driven jacquard machine, comprising:

a frame;

the knitting mechanism comprises a knitting platform positioned at the bottom of the rack, a lifting rod positioned above the knitting platform and horizontally arranged, and a knitting needle fixed on the lifting rod and with a needle head facing the knitting platform;

the driving mechanism is used for driving the lifting rod to move up and down;

particularly, the lifting rod is arranged on the frame in a sliding manner from two end parts;

the driving mechanism comprises a movable pulley positioned on the lifting rod; the first fixed pulley and the second fixed pulley are arranged on the frame and are arranged on two opposite sides of the movable pulley; the first winding wheel and the second winding wheel are respectively arranged on two opposite sides of the frame; the two end parts are respectively fixed on the first winding wheel and the second winding wheel at two sides and sequentially wind the traction rope of the first fixed pulley, the movable pulley and the second fixed pulley; and the first driver and the second driver respectively drive the first winding wheel and the second winding wheel to rotate so as to wind or release the traction rope, wherein the movable pulley and the lifting rod are driven to move up and down in the winding or releasing of the traction rope.

Preferably, the first winding wheel and the second winding wheel are synchronously and oppositely arranged in a rotating way. Therefore, the shuttle capability of the knitting needle can be provided more instantly, and the weaving of the cloth is facilitated.

Preferably, the movable pulley is disposed at a middle portion of the lifting rod.

According to a specific implementation and preferred aspect of the present invention, the frame includes side struts located on opposite sides, and the lifter slides from both ends and is disposed on the side struts on both sides.

Preferably, a sliding groove which is inwards recessed from the inner side surface and extends along the vertical direction is formed in each side supporting rod, a sliding rod which extends along the vertical direction is arranged in the sliding groove, two end parts of the lifting rod are respectively arranged in the sliding groove in a sliding mode, and an opening groove matched with the sliding rod is formed in the end part of the lifting rod. The matching of the notch groove and the sliding rod is more beneficial to the stable lifting operation of the lifting rod.

Furthermore, the two opposite sides of the notch groove are also provided with sliding rollers which can roll and support on the bottom surface of the sliding groove. Ensure that the lifting rod cannot shake in the length direction.

According to the utility model discloses a still another embodiment and preferred aspect, the frame still includes the top support, and first fixed pulley and second fixed pulley set up on the top support about the movable pulley symmetry, and the rope section that extends to the movable pulley from first fixed pulley and the rope section parallel arrangement that the movable pulley extends to the second fixed pulley.

In this example, the rope portion extending from the first fixed sheave to the movable sheave and the rope portion extending from the movable sheave to the second fixed sheave are disposed vertically and horizontally.

Meanwhile, the first winding wheel and the second winding wheel are respectively arranged at the tops of the side supporting rods.

In addition, the knitting mechanism further comprises a positioning plate which is transversely arranged on the rack and is provided with guide holes corresponding to the knitting needles one by one, and a downward limiting rod which is fixedly arranged on the positioning plate, wherein the needle heads of the knitting needles penetrate out of the bottom of the positioning plate from the guide holes, and when the bottom of the lifting rod is abutted against the top of the downward limiting rod, the downward limiting rod limits the downward movement of the lifting rod.

In this example, there are two descending limiting rods, and the two descending limiting rods are correspondingly distributed at two opposite end parts of the lifting rod.

Specifically, the descending limiting rod can be movably adjusted up and down along the length direction of the descending limiting rod and is arranged on the positioning plate. In this way, the limitation of different strokes of the needle can be satisfied, so that the practicability is enhanced.

Compared with the prior art, the utility model has the advantages of as follows:

the utility model discloses can be more stable and realize the up-and-down motion of knitting needle more simply, and the fault rate is lower, utilize the cooperation of movable pulley and fixed pulley simultaneously, can provide the ability of shuttling of knitting needle in the twinkling of an eye, simple structure, with low costs.

Drawings

Fig. 1 is a schematic front view of a pulley driven jacquard machine according to the present invention;

FIG. 2 is a schematic top view of the slide and lift pins of FIG. 1;

in the drawings: 1. a frame; 10. a side strut; 10a, a chute; d. the bottom surface of the groove; 10b, a slide bar;

2. a knitting mechanism; 20. a knitting platform; 21. a lifting rod; 21a, a notch groove; 21b, a slide roller; 22. knitting needles; 22a, a needle head; 23. positioning a plate; 230. a guide hole; 24. a downward limiting rod;

3. a drive mechanism; 30. a movable pulley; 31. a first fixed pulley; 32. a second fixed pulley; 33. a first winding wheel; 34. a second winding wheel; 35. a hauling rope; 36. a first driver; 37. a second driver.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the present embodiment provides a pulley driven jacquard machine including a frame 1, a knitting mechanism 2, and a driving mechanism 3.

Specifically, the frame 1 includes two side support bars 10 standing on opposite sides and a top bracket 11 positioned at the top between the two side support bars 10.

The knitting mechanism 2 includes a knitting platform 20 located at the bottom of the two side support bars 10 and fixed to the two side support bars 10 from both ends, a lift lever 21 located above the knitting platform 20 and horizontally provided, and a knitting needle 22 fixed to the lift lever 21 with a needle head 22a facing the knitting platform 20.

Meanwhile, the knitting mechanism 2 further includes a positioning plate 23 transversely disposed on the two side support bars 10 and having guide holes 230 corresponding to the knitting needles 22 one by one, wherein the needle 22a of the knitting needle 22 passes through the bottom of the positioning plate 23 from the guide holes 230.

In this example, the knitting mechanism 2 further includes a downward limiting rod 24 fixedly disposed on the positioning plate 23, and when the bottom of the lifting rod 21 abuts against the top of the downward limiting rod 24, the downward limiting rod 24 limits the downward movement of the lifting rod 21. The effect of the descending limiting rod is as follows: firstly, protecting the second spring; and secondly, limiting the movement stroke of the needle.

Specifically, two of the lower limit rods 24 are correspondingly distributed at two opposite ends of the lifting rod 21.

Specifically, the down limiting rod 24 can be movably adjusted up and down along the length direction thereof and is disposed on the positioning plate 23. In this way, the limitation of different strokes of the needle can be satisfied, so that the practicability is enhanced.

And a driving mechanism 3 for driving the lifting rod 21 to move up and down, so that the up-and-down shuttle interweaving of the knitting needles 22 can be realized to form jacquard.

To facilitate the implementation of the above-described embodiment, the lifting rod 21 is slidably provided on the two side stays 10 from both ends in this example.

As shown in fig. 2, each side branch rod 10 is formed with a slide groove 10a recessed from the inner side surface and extending in the vertical direction, a slide rod 10b extending in the vertical direction is provided in the slide groove 10a, both end portions of the lift rod 21 are slidably provided in the slide grooves 10a, respectively, and the end portion of the lift rod 21 is provided with a slit groove 21a matching with the slide rod 10 b. The matching of the notch groove 21a and the slide rod 10b is more beneficial to the stable lifting operation of the lifting rod 21.

In this example, slide rollers 21b are provided on opposite sides of the slit groove 21a so as to be rollably supported on the groove bottom surface d of the chute 10 a. The lifting rod 21 is ensured not to shake in the length direction.

The driving mechanism 3 includes a movable pulley 30 positioned on the lifting rod 21; a first fixed pulley 31 and a second fixed pulley 32 which are arranged on the frame 1 and are arranged on two opposite sides of the movable pulley 30; a first winding wheel 33 and a second winding wheel 34 respectively arranged at two opposite sides of the frame 1; a traction rope 35, the two ends of which are respectively fixed on the first winding wheel 33 and the second winding wheel 34 on the two sides and sequentially wound around the first fixed pulley 31, the movable pulley 30 and the second fixed pulley 32; and a first driver 36 and a second driver 37 for driving the first winding wheel 33 and the second winding wheel 34 to rotate, respectively, to wind up or release the traction rope, wherein the movable pulley 30 and the lifting rod 21 are driven to move up and down in the winding or releasing of the traction rope 35.

In this example, the first winding wheel 33 and the second winding wheel 34 are provided to rotate in synchronization and in opposition to each other. Therefore, the shuttle capability of the knitting needle can be provided more instantly, and the weaving of the cloth is facilitated.

The movable pulley 30 is provided in the middle of the lift lever 21. Thus, the force bearing point is positioned at the center of the lifting rod 21, which is very beneficial to the up-and-down lifting of the lifting rod 21.

Meanwhile, the first fixed pulley 31 and the second fixed pulley 32 are symmetrically arranged on the top bracket 11 with respect to the movable pulley 30, and a rope section extending from the first fixed pulley 31 to the movable pulley 30 and a rope section extending from the movable pulley 30 to the second fixed pulley 32 are both arranged vertically to the horizontal plane.

A first winding wheel 33 and a second winding wheel 34 are respectively provided on the top of the side bar 10.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A pulley-driven jacquard machine comprising:

a frame;

the driving mechanism is used for driving the lifting rod to move up and down;

the method is characterized in that: the lifting rods are arranged on the rack in a sliding mode from two end portions;

the driving mechanism comprises a movable pulley positioned on the lifting rod; the first fixed pulley and the second fixed pulley are arranged on the frame and are arranged on two opposite sides of the movable pulley; the first winding wheel and the second winding wheel are respectively arranged on two opposite sides of the rack; the two end parts of the traction rope are respectively fixed on the first winding wheel and the second winding wheel on two sides and sequentially wound around the first fixed pulley, the movable pulley and the second fixed pulley; and the first driver and the second driver respectively drive the first winding wheel and the second winding wheel to rotate so as to wind or release the traction rope, wherein the movable pulley and the lifting rod are driven to move up and down during the winding or the releasing of the traction rope.

2. The pulley-driven jacquard machine according to claim 1, characterized in that: the first winding wheel and the second winding wheel are synchronously and oppositely arranged in a rotating mode.

3. The pulley-driven jacquard machine according to claim 1, characterized in that: the movable pulley is arranged in the middle of the lifting rod.

4. The pulley-driven jacquard machine according to claim 1, characterized in that: the frame includes the collateral branch pole that is located relative both sides, the lifter sets up on both sides from both ends slip the collateral branch pole.

5. The pulley-driven jacquard machine according to claim 4, characterized in that: each side support rod is provided with a sliding groove which is inwards sunken from the inner side surface and extends along the vertical direction, a sliding rod which extends along the vertical direction is arranged in the sliding groove, two end parts of the lifting rod are respectively arranged in the sliding groove in a sliding manner, and the end part of the lifting rod is provided with a notch groove matched with the sliding rod.

6. The pulley-driven jacquard machine according to claim 5, characterized in that: and sliding rollers which can be supported on the bottom surface of the sliding groove in a rolling manner are also arranged on the two opposite sides of the notch groove.

7. The pulley-driven jacquard machine according to claim 4, characterized in that: the frame still include the roof-rack, first fixed pulley and second fixed pulley about the movable pulley symmetry sets up on the roof-rack, and certainly first fixed pulley to the rope portion that the movable pulley extends with the movable pulley to the rope portion parallel arrangement that the second fixed pulley extends.

8. The pulley-driven jacquard machine according to claim 7, characterized in that: the first winding wheel and the second winding wheel are respectively arranged at the tops of the side supporting rods.

9. The pulley-driven jacquard machine according to claim 1, characterized in that: the knitting mechanism further comprises a positioning plate which is transversely arranged on the rack and is provided with guide holes corresponding to the knitting needles in a one-to-one mode, and a descending limiting rod fixedly arranged on the positioning plate, wherein needle heads of the knitting needles penetrate out of the bottom of the positioning plate from the guide holes, and when the bottom of the lifting rod is abutted against the top of the descending limiting rod, the descending limiting rod limits the descending of the lifting rod.

10. The pulley-driven jacquard machine according to claim 9, characterized in that: the two downlink limiting rods are correspondingly distributed at the two opposite end parts of the lifting rod, wherein each downlink limiting rod can be movably adjusted up and down along the length direction of the downlink limiting rod and is arranged on the positioning plate.