CN216639841U

CN216639841U - Traction rake driving mechanism of computerized flat knitting machine

Info

Publication number: CN216639841U
Application number: CN202220100206.1U
Authority: CN
Inventors: 高铭伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-05-31
Anticipated expiration: 2032-01-14

Abstract

The utility model provides a computerized flat knitting machine tractive harrow actuating mechanism, including tractive harrow subassembly and tractive mechanism that opens and shuts, the tractive mechanism that opens and shuts includes the front beam, the back beam, step motor and motor cabinet, it is preceding, back beam front and back symmetry sets up, and be located between the left wallboard and the right wallboard of frame, tractive harrow subassembly is located the front beam, the left wallboard, enclose the cavity between back beam and the right wallboard, anterior tractive harrow subassembly dress is on the front beam, rear portion tractive harrow subassembly dress is on the back beam, the left side, be equipped with the motor cabinet on the right wallboard, step motor is equipped with on the motor cabinet, there is the lead screw in step motor's the pivot, there is the opposite screw thread in the front portion and the rear portion of lead screw, the tip and the rear portion threaded connection of back beam, the tip and the anterior threaded connection of front beam. The utility model not only realizes the opening and closing function of the drawing harrow component, but also simplifies the whole structure, avoids the error in transmission, improves the stability and the precision in opening and closing of the drawing harrow components at the front side and the rear side, and fully ensures the drawing effect of the braided fabric.

Description

Traction rake driving mechanism of computerized flat knitting machine

Technical Field

The utility model relates to the technical field of computerized flat knitting machines, in particular to a traction rake driving mechanism of a computerized flat knitting machine.

Background

The computerized flat knitting machine plays a very important role in the textile industry due to the advantages of high knitting efficiency, small demand of operators, simple programming and the like. The roller is a necessary device for pulling the knitted fabric in the computerized flat knitting machine, and has the function of clamping and pulling the knitted fabric formed by the knitting mechanism downwards so as to be beneficial to realizing the functions of knitting by latch needles, turning over needles and the like.

In recent years, computerized flat knitting machines with full-forming functions are rapidly developed, and are favored by the market because the advanced integrated garment-making function can get rid of the productivity limitation of the traditional looping process. Although the roller device on the existing computerized flat knitting machine is easy to realize the drawing action and low in cost, the roller device aims at simultaneously drawing the whole knitted fabric, cannot realize the segmented and layered drawing of the knitted fabric, and has great limitation particularly on a full-forming machine, so that the knitting of the full-forming knitted fabric puts higher requirements on a drawing system of the computerized flat knitting machine.

At present, the drawing effect of the woven fabric can be obviously improved by arranging the drawing harrow components above the roller device, but the design of an opening and closing mechanism of a plurality of groups of drawing harrow components arranged side by side and arranged front and back along the width direction of the woven fabric is not ideal. For example, the chinese patent application with publication No. CN110904568A, entitled "control device for drawing mechanism in knitting machine", which is installed on a frame and connected with drawing mechanisms at both sides of the drawing device, includes opening and closing assemblies at both sides, the opening and closing assemblies at both sides are connected through a transmission shaft, and both ends of the transmission shaft are provided with cams; the opening and closing assembly comprises a first sector gear and a second sector gear which are meshed with each other, the first sector gear and the second sector gear are respectively connected with the traction mechanisms on the two sides, and the first sector gear and the second sector gear are rotatably arranged on a mounting seat; a bent swing arm extends out of the rear of the second sector gear, and the tail end of the swing arm is abutted to the cam through a bearing.

The above patent application connects the traction mechanism of both sides through intermeshing's sector gear to control sector gear's rotation through the cam, thereby drive both sides traction mechanism and rotate, realize opening, closing action of whole set of harrow formula traction assembly. Because the opening and closing of the drawing rake assembly are realized by sequentially transmitting the transmission shaft, the oscillating rod, the cam, the sector gear and the like, the transmission precision is not very high during the actual work, and the phenomenon of blocking sometimes occurs, so that the opening and closing effect of the drawing rake assemblies on the front side and the rear side of the braided fabric is influenced, and the drawing efficiency of the drawing rake assembly is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a traction rake driving mechanism of a computerized flat knitting machine, which can effectively improve the opening and closing precision of traction rake components on the front side and the rear side of a braided fabric and ensure the traction effect.

The utility model provides a drawing rake driving mechanism of a computerized flat knitting machine, which comprises a plurality of drawing rake components and drawing opening and closing mechanisms, wherein the drawing rake components are symmetrically arranged in the front and back direction along the width direction of a braided fabric, the drawing opening and closing mechanisms are used for driving the drawing rake components symmetrically arranged in the front and back direction to open and close, the drawing opening and closing mechanisms comprise a front cross beam, a rear cross beam, a stepping motor and a motor base, the front cross beam and the rear cross beam are symmetrically arranged in the front and back direction and are positioned between a left wall plate and a right wall plate of a rack, and the drawing rake components are positioned in a drawing rake cavity defined by the front cross beam, the left wall plate, the rear cross beam and the right wall plate; the front drawing rake assembly is arranged on the front cross beam, and the rear drawing rake assembly is arranged on the rear cross beam; all install the motor cabinet on left side wallboard and the right wallboard, install step motor on the motor cabinet, install the lead screw in step motor's the pivot, the front portion and the rear portion of lead screw are equipped with and revolve to opposite screw thread, the tip of back crossbeam and the rear portion threaded connection of lead screw, the tip of preceding crossbeam and the anterior threaded connection of lead screw.

The utility model relates to a traction rake driving mechanism of a computerized flat knitting machine, wherein front end covers are respectively arranged at two end parts of a front cross beam, rear end covers are respectively arranged at the end parts of rear cross beams, a rear connecting plate is arranged on each rear end cover, a front connecting plate is arranged on each front end cover, a front screw sleeve is arranged on each front connecting plate, a rear screw sleeve is arranged on each rear connecting plate, the rear screw sleeves are connected with the rear parts of screw rods in a threaded manner, the front screw sleeves are connected with the front parts of the screw rods in a threaded manner, and the end parts of the screw rods are arranged on a motor base through bearing seats.

According to the traction rake driving mechanism of the computerized flat knitting machine, linear sliding rail assemblies are arranged between the front connecting plate and the motor base and between the rear connecting plate and the motor base.

The drawing rake driving mechanism of the computerized flat knitting machine is characterized in that an opening bottom plate is arranged right below a drawing rake cavity, a compound needle is arranged on the opening bottom plate, a vertical hanging plate is arranged at the bottom of the opening bottom plate, a compound needle opening and closing motor is arranged at the bottom of the vertical hanging plate, a screw rod is arranged on a rotating shaft of the compound needle opening and closing motor, a swing rod is arranged on the vertical hanging plate, the middle of the swing rod is hinged with the vertical hanging plate, the bottom of the swing rod is in threaded connection with the screw rod, and the top of the swing rod is connected with an opening and closing slide rod of the compound needle.

After adopting the structure, compared with the prior art, the traction harrow driving mechanism of the computerized flat knitting machine has the following advantages: the utility model designs the drawing opening and closing mechanism into a structure comprising a front cross beam, a rear cross beam, a stepping motor and a motor base, wherein the front cross beam and the rear cross beam are symmetrically arranged in the front and back direction and are positioned between a left wall plate and a right wall plate of a frame, a plurality of drawing rake assemblies are positioned in a drawing rake cavity formed among the front cross beam, the left wall plate, the rear cross beam and the right wall plate, the front drawing rake assembly is arranged on the front cross beam, the rear drawing rake assembly is arranged on the rear cross beam, the motor base is arranged on the left wall plate and the right wall plate, the stepping motor is arranged on the motor base, a screw rod is arranged on a rotating shaft of the stepping motor, threads with opposite rotating directions are arranged on the front part and the rear part of the screw rod, the end part of the rear cross beam is in threaded connection with the rear part of the screw rod, the end part of the front cross beam is in threaded connection with the front part of the screw rod, therefore, when the drawing rake assemblies symmetrically arranged in the front and back need to be opened, the drawing harrow can be easily completed by driving the rotation of the screw rod through the stepping motor, compared with the prior art, the drawing harrow can not only realize the opening and closing functions of the front and back drawing harrow components, but also simplify the integral structure, avoid the error during transmission, improve the stability and the opening and closing precision of the front and back drawing harrow components, and fully ensure the drawing effect of braided fabrics.

Drawings

FIG. 1 is a schematic perspective view of a drawing rake driving mechanism of a computerized flat knitting machine according to the present invention;

fig. 2 is a front view schematically showing the structure of fig. 1.

Detailed Description

The drawing harrow driving mechanism of the computerized flat knitting machine is further explained in detail with the accompanying drawings and the detailed implementation mode:

as shown in fig. 1 and 2, in the present embodiment, the drawing rake driving mechanism of the computerized flat knitting machine of the utility model comprises a drawing rake assembly 8 and drawing opening and closing mechanisms, wherein a plurality of drawing rake assemblies 8 are symmetrically arranged in front and back along the width direction of the knitted fabric, and the drawing opening and closing mechanisms are used for driving the drawing rake assemblies 8 symmetrically arranged in front and back to open and close. During operation, the braided fabric is located between the traction rake assemblies 8 arranged in the front and back, after the traction rake assemblies 8 arranged in the front and back are closed by the traction opening and closing mechanism, the traction hook on the traction rake assemblies 8 starts to alternately move up and down, so that the braided fabric is continuously pulled downwards, the existing roller device is combined, and the traction effect of the braided fabric can be fully improved. The rake assembly 8 described herein is conventional in the art.

The drawing opening and closing mechanism comprises a front cross beam 9, a rear cross beam 11, a stepping motor 22 and a motor base 21. The front cross beam 9 and the rear cross beam 11 are symmetrically arranged in front and back and are positioned between the left wall plate 6 and the right wall plate 7 of the rack; the plurality of drawing rake assemblies 8 are positioned in a drawing rake cavity 10 defined by the front cross beam 9, the left wall plate 6, the rear cross beam 11 and the right wall plate 7; the front pulling rake assembly 8 is mounted on the front cross beam 9, and the rear pulling rake assembly 8 is mounted on the rear cross beam 11.

All install motor cabinet 21 through the screw on the lateral wall of left wallboard 6 and right wallboard 7, install step motor 22 through the bolt on the motor cabinet 21, this step motor 22 is the product sold in the market at present, as for specific model, ordinary skilled person in the art can select by oneself according to self demand. A screw rod 18 is arranged on a rotating shaft of the stepping motor 22, and threads with opposite rotation directions are respectively arranged at the front part and the rear part of the screw rod 18; the end of the rear beam 11 is in threaded connection with the rear part of the screw rod 18, and the end of the front beam 9 is in threaded connection with the front part of the screw rod 18. The front part and the rear part of the screw rod 18 are respectively provided with threads with opposite screwing directions, so that the front cross beam 9 and the rear cross beam 11 are synchronously opened and closed when the screw rod 18 rotates.

The left end and the right end of the front cross beam 9 are both provided with a front end cover 12, and the left end and the right end of the rear cross beam 11 are both provided with a rear end cover 13; a rear connecting plate 15 is arranged on the rear end cover 13, and a front connecting plate 14 is arranged on the front end cover 12; the bottom surface of the front connecting plate 14 is provided with a front threaded sleeve 19, and the bottom surface of the rear connecting plate 15 is provided with a rear threaded sleeve 17; the rear screw sleeve 17 is connected with the screw thread at the rear part of the screw rod 18, and the front screw sleeve 19 is connected with the screw thread at the front part of the screw rod 18; the front end and the rear end of the screw rod 18 are installed on a motor base 21 through bearing blocks 16, and the bearing blocks 16 are connected with the motor base 21 through bolts.

In order to further ensure the stability of the pulling rake assembly 8 arranged in the front and rear when being opened and closed, linear slide rail assemblies 23 are installed between the front connecting plate 14 and the motor base 21 and between the rear connecting plate 15 and the motor base 21, and the linear slide rail assemblies 23 are commercially available products.

A starting bottom plate 1 is arranged under the drawing rake cavity 10, a compound needle is arranged on the starting bottom plate 1, a vertical hanging plate 5 is arranged at the bottom of the starting bottom plate 1, a compound needle opening and closing motor 4 is arranged at the bottom of the vertical hanging plate 5, and a screw rod 3 is arranged on a rotating shaft of the compound needle opening and closing motor 4. The vertical hanging plate 5 is provided with a swing rod 2, the middle part of the swing rod 2 is hinged with the vertical hanging plate 5 through a pin shaft, the bottom of the swing rod 2 is connected with the screw rod 3 through a threaded sleeve, and the top of the swing rod 2 is connected with an opening and closing slide rod of the compound needle. The mounting structure and the opening and closing structure of the composite needle are conventional in the prior art at present, and the application is improved by the following steps: the compound needle opening and closing motor 4 drives the screw rod 3 to drive the swing rod 2 to swing so as to further realize the opening and closing of the compound needle, the compound needle opening and closing motor originally drives the compound needle to swing by a cam structure at the bottom of the swing rod 2, and the phenomenon of blocking is easy to occur in the working process, so that the applicant designs the driving structure. The compound needle opening and closing motor 4 is a stepping motor, belongs to a product sold in the market, and can be selected by a person with ordinary skill in the art according to the requirement of the person, so that the details are not repeated.

Through the improvement of the structure, the utility model not only realizes the opening and closing function of the front and rear traction harrow components 8, but also simplifies the whole structure, avoids the error generated during transmission, improves the stability and the precision during opening and closing of the front and rear traction harrow components 8, and fully ensures the traction effect of the braided fabric by combining with the roller device.

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 made to the technical solutions of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope of the present invention.

Claims

1. The utility model provides a computerized flat knitting machine tractive harrow actuating mechanism, includes tractive harrow subassembly (8) and tractive mechanism that opens and shuts, tractive harrow subassembly (8) have a plurality of to along the width direction longitudinal symmetry setting of knitting, the tractive mechanism that opens and shuts is used for ordering about tractive harrow subassembly (8) that the symmetry set up open and shut its characterized in that: the traction opening and closing mechanism comprises a front cross beam (9), a rear cross beam (11), a stepping motor (22) and a motor base (21), the front cross beam (9) and the rear cross beam (11) are symmetrically arranged in front and back and are positioned between a left wall plate (6) and a right wall plate (7) of the rack, and the plurality of traction rake components (8) are positioned in a traction rake cavity (10) defined by the front cross beam (9), the left wall plate (6), the rear cross beam (11) and the right wall plate (7);

the front drawing rake assembly (8) is arranged on the front cross beam (9), and the rear drawing rake assembly (8) is arranged on the rear cross beam (11);

all install motor cabinet (21) on left side wallboard (6) and right wallboard (7), install step motor (22) on motor cabinet (21), install lead screw (18) in the pivot of step motor (22), the front portion and the rear portion of lead screw (18) are equipped with and revolve to opposite screw thread, the tip of rear beam (11) and the rear portion threaded connection of lead screw (18), the tip of front beam (9) and the anterior threaded connection of lead screw (18).

2. The pulling rake driving mechanism of the computerized flat knitting machine according to claim 1, wherein: front end housing (12) are all equipped with to two tip of front beam (9), rear end housing (13) are all installed to the tip of rear beam (11), install back connecting plate (15) on rear end housing (13), install preceding connecting plate (14) on front end housing (12), install preceding swivel nut (19) on preceding connecting plate (14), install back swivel nut (17) on back connecting plate (15), threaded connection at back swivel nut (17) and lead screw (18) rear portion, preceding swivel nut (19) and the anterior threaded connection of lead screw (18), the tip of lead screw (18) passes through bearing frame (16) and installs on motor cabinet (21).

3. The pulling rake driving mechanism of the computerized flat knitting machine according to claim 2, wherein: and linear sliding rail assemblies (23) are arranged between the front connecting plate (14) and the motor base (21) and between the rear connecting plate (15) and the motor base (21).

4. The pulling rake driving mechanism for a computerized flat knitting machine according to any one of claims 1 to 3, wherein: be equipped with under tractive harrow cavity (10) and open bottom plate (1), open and be equipped with compound needle on bottom plate (1), the bottom of opening bottom plate (1) is equipped with vertical link plate (5), the bottom of vertical link plate (5) is equipped with compound needle and opens and shut motor (4), install screw rod (3) in the pivot of compound needle motor (4) that opens and shuts, be equipped with pendulum rod (2) on vertical link plate (5), the middle part and vertical link plate (5) of pendulum rod (2) are articulated, the bottom and screw rod (3) threaded connection of pendulum rod (2), the top of pendulum rod (2) and the sliding rod connection that opens and shuts of compound needle.