CN216998775U

CN216998775U - Fabric layering tractive harrow

Info

Publication number: CN216998775U
Application number: CN202220551760.1U
Authority: CN
Inventors: 吴梅飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-07-19
Anticipated expiration: 2032-03-14

Abstract

The utility model provides a fabric layering tractive harrow, including tractive hook, tractive hook seat, the tractive pole, harrow frame and actuating mechanism, the tractive hook dress is on tractive hook seat, tractive hook seat dress is on the tractive pole, the tractive pole dress is on harrow frame, actuating mechanism is used for ordering about the tractive pole along harrow frame reciprocating motion from top to bottom, actuating mechanism includes the motor, the lead screw, screw-nut and movable block, the vertical dress of motor is on harrow frame, the tip dress of lead screw is in the pivot of motor, screw-nut overlaps on the lead screw, with lead screw threaded connection, the bottom dress of movable block is on screw-nut, the top dress is on the tractive pole. In the actual operation process, workers can adjust the vertical movement stroke of the lifting assembly by changing the relative position of the screw rod nut on the screw rod so as to meet the weaving requirements of different fabrics and improve the universality; the connecting structure matched with the lead screw and the lead screw nut overcomes the defect that the outer wall of a cam is abraded due to the fact that the lead screw is driven by the cam originally, the precision of pulling the fabric is effectively guaranteed, and the operation is more reliable.

Description

Fabric layering tractive harrow

Technical Field

The utility model relates to the technical field of computer flat knitting machines, in particular to a fabric layering traction rake.

Background

In order to prevent the loops from floating up during the knitting of the fabric by the computerized flat knitting machine, the knitted fabric needs to be pulled down by a pulling device. The roller device is adopted at first, the roller rollers with opposite rotation directions are used for clamping and downwards pulling the braided fabric during working, the pulling device is suitable for integrally pulling the braided fabric, local pulling of the braided fabric is difficult, even if the sectional type roller is adopted, the pulling effect is poor, waste products are easy to form, and if the braided fabric is complex braided fabric, such as full-forming braided fabric, the required pulling effect cannot be achieved; later, the pulling harrow is adopted to pull the fabric, and when the pulling harrow works, the pulling hook in the adjacent pulling harrow moves up and down alternately, so that the local downward pulling of the braided fabric is realized, and the knitting requirements of the existing fabric are effectively met.

However, in the practical application process, the applicant has found a new technical problem, for example, in chinese patent application publication No. CN112941713A, entitled "fabric drawing device, fabric drawing device assembly and flat knitting machine", which is driven by a motor to drive a cam structure to move up and down a lifting assembly composed of a drawing rod, a drawing hook seat, a drawing hook and the like, although this structure can draw the fabric down and back, driving the lifting assembly by the cam structure cannot adjust the up and down movement stroke of the lifting assembly, so that the universality is poor, and after long-time operation, the peripheral wall of the cam assembly is easily worn, so that the accuracy of drawing the fabric down is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a fabric layered drawing harrow, which can be used for workers to adjust the up-and-down movement stroke of a lifting assembly according to weaving requirements during production, improves the universality and can also effectively ensure the precision during drawing fabric.

The utility model provides a fabric layered drawing rake with the following structure, which comprises a drawing hook, a drawing hook seat, a drawing rod, a rake frame and a driving mechanism, wherein the drawing hook is arranged on the drawing hook seat, the drawing hook seat is arranged on the drawing rod, the drawing rod is arranged on the rake frame, the driving mechanism is used for driving the drawing rod to reciprocate up and down along the rake frame, the driving mechanism comprises a motor, a screw rod nut and a movable block, the motor is vertically arranged on the rake frame, the end part of the screw rod is arranged on a rotating shaft of the motor, the screw rod nut is sleeved on the screw rod and is in threaded connection with the screw rod, the bottom part of the movable block is arranged on the screw rod nut, and the top part of the movable block is arranged on the drawing rod.

The utility model relates to a fabric layered drawing harrow, wherein the top of a movable block is attached to the bottom of a drawing rod, and a resetting device for resetting the drawing rod after the drawing rod is jacked upwards is arranged between the drawing rod and a harrow frame.

The utility model relates to a fabric layered drawing harrow, wherein a reset device comprises a tension spring and a hanging plate, the top of the tension spring is arranged on a drawing rod, the bottom of the tension spring is arranged on the hanging plate, and the hanging plate is arranged at the lower part of a harrow frame.

The utility model relates to a fabric layered drawing harrow, wherein a sliding groove with an opening at the bottom is formed in a harrow frame along the height direction of the harrow frame, and the edge of a hanging plate is positioned in the sliding groove.

The utility model relates to a fabric layered drawing harrow, wherein hook parts for hooking tension springs are arranged at the top and the bottom of a hanging plate.

The utility model relates to a fabric layered drawing harrow, wherein a convex part used for being erected on the top surface of a hanging plate is arranged on a movable block.

The utility model relates to a fabric layered drawing harrow, wherein a plurality of limiting holes are formed in the side wall of a harrow rack corresponding to a guide groove at the lower part of a drawing rod, the limiting holes are sequentially arranged along the height direction of the harrow rack, a limiting pin is inserted into one limiting hole, and the limiting pin is positioned in the guide groove.

The utility model relates to a fabric layered drawing harrow, wherein a feed screw nut and a movable block are integrated.

After adopting the structure, compared with the prior art, the layered drawing harrow for the fabrics has the following advantages: according to the utility model, the driving mechanism is designed into a structure consisting of the motor, the lead screw nut and the movable block, the motor is vertically arranged on the rake frame, the end part of the lead screw is arranged on a rotating shaft of the motor, the lead screw nut is sleeved on the lead screw and is in threaded connection with the lead screw, the bottom of the movable block is arranged on the lead screw nut, and the top of the movable block is arranged on the traction rod, so that in the actual operation process, workers can adjust the vertical movement stroke of the lifting assembly by changing the relative position of the lead screw nut on the lead screw, so as to meet the weaving requirements of different fabrics and improve the universality; in addition, the connecting structure matched with the screw rod and the screw rod nut overcomes the defect that the outer wall of the cam is abraded due to the fact that the connecting structure is driven by the cam originally, the precision of pulling the fabric is effectively guaranteed, and the operation is more reliable.

Drawings

FIG. 1 is a schematic perspective view of a layered drawing harrow for fabrics according to the present invention;

FIG. 2 is a schematic perspective view of the shield and cover of FIG. 1 shown hidden therein;

FIG. 3 is a schematic perspective view of the drawing hook, the drawing hook base, the drawing rod and the driving mechanism when assembled together;

fig. 4 is a schematic bottom perspective view of the hanging plate mounted on the lower part of the harrow plate.

Detailed Description

The utility model relates to a fabric layered drawing harrow, which is further explained in detail by combining the attached drawings and the detailed embodiment:

as shown in fig. 1, 2 and 3, in the present embodiment, the fabric layered drawing rake of the present invention includes a drawing hook 4, a drawing hook seat 3, a drawing rod 5, a rake frame 7 and a driving mechanism 8, wherein the drawing hook 4 is installed on the drawing hook seat 3 through a pin, the drawing hook seat 3 is installed on the top of the drawing rod 5, the drawing rod 5 is installed in a vertical groove 72 formed on the rake frame 7, and the driving mechanism 8 is located below the drawing rod 5 and is used for driving the drawing rod 5 to reciprocate up and down along the rake frame 7 to draw a fabric. A shield 2 is arranged at the upper part of the rake frame 7, and a vertical long groove for the traction hook 4 to extend out and move up and down is formed in the shield 2 corresponding to the traction hook 4; a closing plate 1 is mounted on the rake frame 7 below the shroud 2 so as to enclose the drive mechanism 8 in the inner cavity of the rake frame 7.

The driving mechanism 8 includes a motor 81, a lead screw 82, a lead screw nut 83, and a movable block 84. The motor 81 is vertically arranged on the harrow rack 7; the bottom end of the screw rod 82 is arranged on the rotating shaft of the motor 81; the screw rod nut 83 is sleeved on the screw rod 82 and is in threaded connection with the screw rod 82; the bottom of the movable block 84 is mounted on the feed screw nut 83 and the top is mounted on the traction bar 5. When the motor 81 drives the screw rod 82 to rotate forward and backward alternately, the screw rod nut 83 and the movable block 84 push the traction rod 5 to move up and down, so that the up and down movement of the traction rod 5 is driven. The motor 81 is a stepping motor, and it is common knowledge how to select the motor.

For convenience of manufacturing, the feed screw nut 83 and the movable block 84 may be made as one body.

In order to ensure the continuity of the drag link 5 during operation and the convenience of installation, the top of the movable block 84 is attached to the bottom of the drag link 5, and a resetting device for resetting the drag link 5 after the drag link 5 is jacked up is installed between the drag link 5 and the rake 7. The resetting device comprises a tension spring 10 and a hanging plate 9, the top of the tension spring 10 is hooked in the middle of the traction rod 5, the bottom of the tension spring 10 is hooked on the hanging plate 9, and the hanging plate 9 is arranged at the lower part of the harrow frame 7.

Referring to fig. 4, a chute 73 with an open bottom is formed in the rake frame 7 along the height direction of the rake frame, and the edge of the hanging plate 9 is located in the chute 73; the top and the bottom of the hanging plate 9 are both provided with a hook part 91 for hooking the tension spring 10. Through this kind of structure, except being convenient for carry out the dismouting to link plate 9, still can according to actual demand, use link plate 9 head by head, be about to the head of link plate 9 become the afterbody, the afterbody becomes the head and uses.

The movable block 84 is provided with a convex part 841 which is used for being erected on the top surface of the hanging plate 9, so that a worker can conveniently adjust the tension of the tension spring 10 by adjusting the position of the movable block 84 downwards.

Three limiting holes 71 are formed in the side wall of the rake frame 7 corresponding to the guide groove 51 at the lower part of the pulling rod 5, the three limiting holes 71 are sequentially arranged along the height direction of the rake frame 7, a limiting pin 6 is inserted into one of the limiting holes 71, and the limiting pin 6 is positioned in the guide groove 51. In actual use, the stroke of the drag link 5 can be adjusted by inserting the stopper pin 6 into the different stopper holes 71.

The working principle of the utility model is as follows: when the motor 81 drives the screw rod 82 to rotate anticlockwise, the screw rod nut 83 and the movable block 84 push the traction rod 5 upwards, the tension spring 10 is lengthened by the tensile force, and energy storage is started; after the traction rod 5 drives the traction hook 4 to move upwards to the set highest position, the motor 81 drives the screw rod 82 to rotate clockwise, the traction hook 4 stretches out to hook the braided fabric, under the action of the self weight and the tension of the tension spring 10, the traction rod 5 drives the traction hook 4 to slide downwards along the vertical groove 72, the braided fabric is pulled downwards, the process is repeated, and the braided fabric is pulled in a reciprocating mode. In addition, the worker can adjust the vertical movement stroke of the lifting assembly by changing the relative position of the screw rod nut 83 on the screw rod 82, so that the knitting requirements of different fabrics are met, the knitting range of the fabrics is fully expanded, and the universality is improved.

As in the prior art, a worker can also arrange a plurality of groups of the utility model below the needle plate of the knitting machine corresponding to one side or two sides of the warp path of the knitted fabric, and when the utility model works, the continuous downward traction of the knitted fabric is realized by the alternate up-and-down movement of the traction hooks in the adjacent traction rakes.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention by those skilled in the art should fall within the protection scope of the present invention without departing from the design spirit of the present invention.

Claims

1. The utility model provides a fabric layering tractive harrow, includes tractive hook (4), tractive hook seat (3), tractive pole (5), harrow frame (7) and actuating mechanism (8), tractive hook (4) are adorned on tractive hook seat (3), tractive hook seat (3) are adorned on tractive pole (5), tractive pole (5) are adorned on harrow frame (7), actuating mechanism (8) are used for driving about tractive pole (5) along harrow frame (7) up-and-down reciprocating motion, its characterized in that:

actuating mechanism (8) include motor (81), lead screw (82), screw-nut (83) and movable block (84), motor (81) vertical installation is on harrow frame (7), the tip dress of lead screw (82) is in the pivot of motor (81), screw-nut (83) cover is established on lead screw (82) to with lead screw (82) threaded connection, the bottom dress of movable block (84) is on screw-nut (83), and the top dress is on traction rod (5).

2. A fabric layering pulling rake as defined in claim 1, wherein: the top of the movable block (84) is attached to the bottom of the traction rod (5), and a reset device for resetting the traction rod (5) after the traction rod (5) is jacked upwards is arranged between the traction rod (5) and the rake frame (7).

3. A fabric layering pulling rake as defined in claim 2, wherein: the resetting device comprises a tension spring (10) and a hanging plate (9), the top of the tension spring (10) is arranged on the traction rod (5), the bottom of the tension spring is arranged on the hanging plate (9), and the hanging plate (9) is arranged at the lower part of the harrow frame (7).

4. A fabric layering pulling rake as defined in claim 3, wherein: the harrow rack (7) is provided with a sliding groove (73) with an open bottom along the height direction, and the edge of the hanging plate (9) is positioned in the sliding groove (73).

5. A fabric layering pulling rake according to claim 4, wherein: the top and the bottom of the hanging plate (9) are provided with hook parts (91) for hooking the tension spring (10).

6. A fabric layering pulling rake as defined in claim 5, wherein: the movable block (84) is provided with a convex part (841) which is used for being erected on the top surface of the hanging plate (9).

7. A fabric layering pulling rake according to any one of claims 1 to 6, wherein: a plurality of limiting holes (71) are formed in the side wall of the rake frame (7) corresponding to the guide groove (51) at the lower part of the pulling rod (5), the limiting holes (71) are sequentially arranged along the height direction of the rake frame (7), a limiting pin (6) is inserted into one limiting hole (71), and the limiting pin (6) is located in the guide groove (51).

8. The fabric layering pulling rake of claim 7, wherein: the feed screw nut (83) and the movable block (84) are integrated.