CN219490322U

CN219490322U - Cutting knife mechanism of knitting machine

Info

Publication number: CN219490322U
Application number: CN202320521268.4U
Authority: CN
Inventors: 潘嗣团
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-13
Filing date: 2023-03-13
Publication date: 2023-08-08
Anticipated expiration: 2033-03-13

Abstract

The utility model provides a cutter mechanism of a knitting machine, which belongs to the technical field of textile equipment and comprises a frame, a first driving component and a first cutter bar, wherein a plurality of first cutter grooves are uniformly formed in the upper end face of the first cutter bar, the first driving component is used for driving the first cutter bar to reciprocate along the Y-axis direction, a cutter blade is arranged in the first cutter groove, a second cutter bar is arranged in the frame and is positioned at the front side of the first cutter bar, a plurality of second cutter grooves which are respectively in one-to-one correspondence with the first cutter grooves are uniformly formed in the upper end face of the second cutter bar, each cutter blade comprises a blunt end and a cutter edge end, the blunt end is fixed in the first cutter groove, and the cutter edge end penetrates through the corresponding second cutter groove; according to the utility model, when the cutting blade follows the first cutting blade rod to cut the fabric reciprocally, the blade body of the cutting blade moves back and forth in the second cutter groove, so that the stability of the cutting blade in cutting is improved, the cutting effect is improved, the bending and damage of the cutting blade can be avoided, the cutting efficiency is improved, and the production cost of enterprises is reduced.

Description

Cutting knife mechanism of knitting machine

Technical Field

The utility model relates to the technical field of textile equipment, in particular to a cutting knife mechanism of a knitting machine.

Background

Textile machinery is a variety of mechanical devices required to process natural or chemical fibers into textiles. The machines for producing chemical fibers, although they include a variety of chemical machines, are now considered extensions of textile machines, and belong to the broad category of textile machines. The processes required for processing different fibers such as cotton, hemp, silk and wool into textiles are different and quite different, so that the required machines are various and various.

The lace is a common decorative art product which is made of cotton thread, twine, silk thread or various fabrics in life through embroidery or braiding. The lace machine is an efficient sewing and embossing device, is mainly used for hemming, welding, melt cutting, embossing and the like of synthetic fiber cloth, and the processed product has the characteristics of good water tightness, high production efficiency, no needle and line auxiliary materials, smooth melt section, no burrs, good hand feeling and the like.

The chinese patent with publication No. CN107938156a discloses a cutter mechanism, which includes a cutter frame, the axial upper end of the cutter frame is provided with a plurality of cutter slots for fixing the blades, and the cutter frame is driven to move back and forth, so that the blades can cut the fabric on the yarn guide rod in a passive back and forth manner, but the inventor finds that, as the blades generally adopt ceramic blades with a certain length in the actual production process, only one end of the blades is fixed in the cutter slots in the cutter mechanism, the stability is poor in the cutting process, the cutting effect is affected, and the blades are easier to damage, need to be replaced frequently, the cutting efficiency is affected, and the production cost of enterprises is increased.

Disclosure of Invention

The utility model aims to overcome the defects and the shortcomings of the prior art and provides a cutting knife mechanism of a knitting machine.

The technical scheme adopted by the utility model is as follows: the utility model provides a cutting knife mechanism of knitting machine, includes frame, first drive assembly and sets up in the frame and along the first cutter arbor that X axis direction extends the setting, the up end of first cutter arbor evenly is provided with a plurality of first sword grooves that extend along Y axis direction, first drive assembly is used for driving first cutter arbor and reciprocates along Y axis direction, be provided with the cutting blade in the first sword groove, a serial communication port, extend along X axis direction in the frame and be provided with the second cutter arbor and be located first cutter arbor front side, the up end of second cutter arbor evenly is provided with a plurality of second sword grooves that extend along Y axis direction and respectively one-to-one with first sword groove, the cutting blade includes blunt end and blade end, blunt end is fixed in first sword inslot, the blade end passes corresponding second sword groove.

The cutting tool is characterized by further comprising a sliding seat, a guide rod and a cutting knife rest, wherein the sliding seat is respectively arranged on two sides of the frame, the guide rod is arranged in the sliding seat in a sliding manner, the cutting knife rest is connected with the guide rod, and the first cutting knife rod is fixed on the cutting knife rest.

The cutting knife rest is provided with an L-shaped cutting knife pressing plate, and the first cutting knife rod is fixed between the cutting knife rest and the cutting knife pressing plate.

The first driving assembly comprises a rotating shaft which is rotatably arranged on the frame, two ends of the rotating shaft are respectively provided with a crank arm, the crank arms are connected with a linkage rod, and the linkage rod is connected with the cutter frame.

Both sides all are provided with the fixed block in the frame, be provided with waist shape hole on the fixed block, be provided with fastening bolt in the waist shape hole, fastening bolt end is connected with the second cutting knife pole.

The fabric is wound on the two groups of roller assemblies in sequence and is arranged on the front side of the second cutter groove in parallel, and the two groups of roller assemblies are used for tensioning the fabric.

The device also comprises a second driving component for driving the first roller to rotate.

The two sides of the second roller are provided with pull rods, the pull rods are provided with tension springs, and one ends of the tension springs are fixed on the frame.

The beneficial effects of the utility model are as follows: according to the utility model, the second cutter bar is arranged in parallel on the front side of the first cutter bar, when the cutter blade follows the first cutter bar to cut fabric, the cutter body of the cutter blade moves back and forth in the cutter groove of the second cutter bar, so that the stability of the cutter blade in cutting is improved, the cutting effect is improved, the cutter blade is prevented from being bent and damaged, the cutting efficiency is improved, and the production cost of enterprises is reduced.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that it is within the scope of the utility model to one skilled in the art to obtain other drawings from these drawings without inventive faculty.

FIG. 1 is a schematic diagram of the present utility model;

FIG. 2 is a schematic view of a first cutting bar and a second cutting bar according to the present utility model;

FIG. 3 is an enlarged view of FIG. 1 at A;

FIG. 4 is a schematic view of a fixing block and a fastening bolt according to the present utility model;

FIG. 5 is a second schematic illustration of the present utility model;

in the figure, the cutter comprises a 1-frame, a 2-first cutter bar, a 3-first driving component, a 4-first cutter groove, a 5-second cutter bar, a 6-second cutter groove, a 7-cutter blade, a 71-blunt end, a 72-cutting edge end, an 8-sliding seat, a 9-guide rod, a 10-cutter bar, a 11-cutter pressing plate, a 12-rotating shaft, a 13-crank arm, a 14-linkage rod, a 15-fixing block, a 16-kidney-shaped hole, a 17-fastening bolt, a 18-roller component, a 19-first roller, a 20-second roller, a 21-pull rod and a 22-tension spring.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.

It should be noted that, in the embodiments of the present utility model, all the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the "first" and "second" are only used for convenience of expression, and should not be construed as limiting the embodiments of the present utility model, and the following embodiments are not described one by one.

The terms of direction and position in the present utility model, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer only to the direction or position of the drawing. Accordingly, directional and positional terms are used to illustrate and understand the utility model and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 5, an embodiment of the present utility model is provided:

as shown in fig. 1, for convenience in description and introduction of an XYZ coordinate system, the cutter mechanism of the knitting machine comprises a frame 1, a first driving component 3 and a first cutter bar 2 which is arranged in the frame 1 and extends along an X-axis direction, wherein a plurality of first cutter grooves 4 which extend along the Y-axis direction are uniformly arranged on the upper end surface of the first cutter bar 2, the cross section of the first cutter groove 4 is square, the first driving component 3 is used for driving the first cutter bar 2 to reciprocate along the Y-axis direction, a cutter blade 7 is arranged in the first cutter groove 4, the cutter blade 7 adopts a ceramic blade, a second cutter bar 5 which extends along the X-axis direction in the frame 1 and is positioned on the front side of the first cutter bar 2, a plurality of second cutter grooves 6 which extend along the Y-axis direction and are respectively in one-to-one correspondence with the first cutter grooves 4 are uniformly arranged on the upper end surface of the second cutter bar 5, the cutter blade 7 comprises a blunt end 71 and a cutting edge 72, the blunt end 71 is fixed in the first cutter groove 4, and the blunt end 72 passes through the corresponding second cutter grooves 6; when the cutter blade 7 follows the first cutter bar 2 to cut the fabric reciprocally, the cutter body of the cutter blade 7 moves back and forth in the second cutter groove 6, so that the stability of the cutter blade 7 during cutting is improved, the cutting effect is improved, bending and damage of the cutter blade 7 can be avoided, the cutting efficiency is improved, and the production cost of enterprises is reduced.

Still including set up respectively in the slide 8 of frame 1 both sides, slip set up in the guide arm 9 of slide 8 and the cutting knife rest 10 of being connected with guide arm 9, first cutter arbor 2 is fixed in on the cutting knife rest 10, makes first cutter arbor 2 more stable in the reciprocating motion in-process through the structure of slide 8 and guide arm 9 to promote the cutting effect.

As shown in fig. 2, the cutter holder 10 is provided with an L-shaped cutter pressing plate 11, the first cutter bar 2 is fixed between the cutter holder 10 and the cutter pressing plate 11, the cutter holder 10 is also L-shaped, and is fixed to one side of the cutter pressing plate 11 by bolts, so that the first cutter bar 2 is clamped between the cutter holder and the cutter pressing plate 11, and the cutter blade 7 is more firmly fixed in the first cutter slot 4.

As shown in fig. 3, the first driving component 3 includes a rotating shaft 12 rotatably disposed on the frame 1, two ends of the rotating shaft 12 are respectively provided with a crank arm 13, the crank arms 13 are connected with a linkage rod 14, the linkage rod 14 is connected with the cutter rest 10, the rotating shaft 12 rotates to drive the crank arms 13 to synchronously rotate, the cutter rest 10 is pulled to move back and forth by the linkage rod 14, the first driving component 3 further includes a driving source part and a cam mechanism for intermittently swinging the crank arms 13, and the corresponding mechanism in a cutter mechanism disclosed in the chinese patent with publication No. CN107938156a can be referred to specifically, or the corresponding driving mechanism can also be used for realizing the action requirement of the first cutter bar 2.

Both sides all are provided with fixed block 15 in the frame 1, be provided with waist shape hole 16 on the fixed block 15, be provided with fastening bolt 17 in the waist shape hole 16, be provided with fixation nut on the fastening bolt 17, fastening bolt 17 end is connected with second cutting arbor 5, and this structure makes second cutting arbor 5 be convenient for install and possess the adjustability, can adapt to cutting blade 7 of different length, and the practicality is strong.

Because the cutting knife mechanism in the prior art is directly arranged below the knitting mechanism to cut the fabric, the tightness of the fabric can not be regulated to match with the cutting blade 7 to cut, if the fabric is too loose, the cutting blade 7 can not cut the fabric, and if the fabric is too tight, the knitting action of the upper end can be influenced. Therefore, the mechanism further comprises roller assemblies 18 respectively arranged on the upper side and the lower side of the second cutter bar 5, the roller assemblies 18 comprise a first roller 19 rotatably arranged on the frame 1 and a second roller 20 tightly pressed on the first roller 19, fabrics are sequentially wound on the two groups of roller assemblies 18 and are arranged on the front side of the second cutter groove 6 relative to the parallel direction, the two groups of roller assemblies 18 are used for tensioning the fabrics, so that the cutting blade 7 can cut the fabrics more smoothly, as shown in fig. 5, B is the winding sequence of the fabrics in the two groups of roller assemblies 18, and further, the two first rollers 19 are linked with the chain through chain wheels, and the tension degree of the fabrics can be adjusted by adjusting the tooth number of the chain wheels. A second drive assembly is included for driving the first roller 19 in rotation.

Both sides of the second roller 20 are provided with pull rods 21, the pull rods 21 are provided with tension springs 22, one ends of the tension springs 22 are fixed on the frame 1, and the second roller 20 is ensured to be pressed on the first roller 19, so that a clamping effect on fabrics is achieved.

The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

Claims

1. The utility model provides a cutting knife mechanism of knitting machine, includes frame (1), first drive assembly (3) and sets up in frame (1) and along the first cutter arbor (2) that the X axis direction extends and set up, the up end of first cutter arbor (2) evenly is provided with a plurality of first sword grooves (4) that extend along the Y axis direction, first drive assembly (3) are used for driving first cutter arbor (2) along the reciprocating motion of Y axis direction, be provided with cutting blade (7) in first sword groove (4), a serial communication port, extend along the X axis direction in frame (1) and be provided with second cutter arbor (5) and be located first cutter arbor (2) front side, the up end of second cutter arbor (5) evenly is provided with a plurality of second sword grooves (6) that extend along the Y axis direction and correspond one by one respectively with first sword groove (4), cutting blade (7) include blunt end (71) and blunt end (72), blunt end (71) are fixed in first sword groove (4), second blade (72) corresponding sword groove (72) are passed to second blade (6).

2. The cutting knife mechanism of the knitting machine according to claim 1, further comprising sliding seats (8) respectively arranged on two sides of the frame (1), a guide rod (9) arranged in the sliding seats (8) in a sliding manner, and a cutting knife rest (10) connected with the guide rod (9), wherein the first cutting knife bar (2) is fixed on the cutting knife rest (10).

3. The cutting knife mechanism of a knitting machine according to claim 2, characterized in that the cutting knife holder (10) is provided with an L-shaped cutting knife pressing plate (11), and the first cutting knife holder (2) is fixed between the cutting knife holder (10) and the cutting knife pressing plate (11).

4. A cutting knife mechanism of a knitting machine according to claim 3, characterized in that the first driving component (3) comprises a rotating shaft (12) rotatably arranged on the frame (1), two ends of the rotating shaft (12) are provided with turning arms (13), the turning arms (13) are connected with a linkage rod (14), and the linkage rod (14) is connected with the cutting knife rest (10).

5. The cutting knife mechanism of the knitting machine according to claim 1, characterized in that fixed blocks (15) are arranged on two sides in the frame (1), kidney-shaped holes (16) are formed in the fixed blocks (15), fastening bolts (17) are arranged in the kidney-shaped holes (16), and the tail ends of the fastening bolts (17) are connected with the second cutter bar (5).

6. The cutting knife mechanism of the knitting machine according to claim 1, further comprising roller assemblies (18) respectively arranged on the upper side and the lower side of the second cutter bar (5), wherein the roller assemblies (18) comprise a first roller (19) rotatably arranged on the frame (1) and a second roller (20) tightly pressed on the first roller (19), and fabrics are sequentially wound on the two groups of roller assemblies (18) and are arranged on the front side of the second cutter groove (6) relative to the parallel direction, and the two groups of roller assemblies (18) are used for tensioning the fabrics.

7. The cutting mechanism of a knitting machine according to claim 6, characterized by further comprising a second driving assembly for driving the first roller (19) in rotation.

8. The cutting knife mechanism of the knitting machine according to claim 7, characterized in that two sides of the second roller (20) are provided with a pull rod (21), a tension spring (22) is arranged on the pull rod (21), and one end of the tension spring (22) is fixed on the frame (1).