CN113151991B

CN113151991B - Strip cutting structure of splicing machine

Info

Publication number: CN113151991B
Application number: CN202110454506.XA
Authority: CN
Inventors: 谢少保
Original assignee: Zhejiang Sewpower Automation Technology Co ltd
Current assignee: Zhejiang Sewpower Automation Technology Co ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2022-05-03
Anticipated expiration: 2041-04-26
Also published as: CN113151991A

Abstract

The invention provides a sealing strip cutting structure of a splicing machine, and belongs to the technical field of sewing machines. It has solved the problem of current piece machine welt inefficiency. This piece machine includes the aircraft nose, has linked firmly the installation shell on the aircraft nose, cuts off the structure including setting up in the installation shell and rotatable cam, wear to establish in the installation shell and can follow the sliding strip that the installation shell reciprocated, link firmly the mount pad in the sliding strip bottom and set up the chopper on the mount pad, the cam rotation can promote the sliding strip and move down, is equipped with between sliding strip and the installation shell and enables the sliding strip and shift up the piece that resets. This piece machine pastes strip and cuts off structure improves a strip efficiency on the basis of assurance stability.

Description

Strip cutting structure of splicing machine

Technical Field

The invention belongs to the technical field of sewing machines, and relates to a sealing strip cutting structure of a splicing machine.

Background

A four-needle six-thread splicing machine is mainly used for splicing and splicing of sewing pieces, and is composed of four upper threads, a bottom thread and a hal-sparse thread, and has unique high-elasticity, flat and high-strength splicing effect.

In a sewing machine, a welt needs to be cut off during sewing, and a conventional welt cutting structure, for example, chinese patent document discloses a welt machine having an improved structure [ application number: 201020142536.4, respectively; authorization notice number: CN201665765U ], which comprises a sewing machine body, wherein the body of the sewing machine body is provided with an unreeling frame, a flat sleeve is arranged in front of a needle presser foot of the sewing machine body, the sleeve is vertically arranged, and the outlet of the sleeve faces to a workbench of the sewing machine body; a driving roller for conveying cloth is arranged behind a needle presser foot of the sewing machine body.

The strip sticking machine with the structure winds the strip on the unreeling frame, and the strip sticking machine can pull the unreeling frame to rotate when sewing, so that sewing strip sticking of a machine needle is achieved. However, after the strip attaching machine with the structure finishes attaching the strip to one piece of sewing cloth, an operator needs to cut off the strip with a pair of scissors by hand to attach the next piece of sewing cloth, the strip is cut off manually, and the interval of the intermediate time is longer, so that the strip attaching efficiency is reduced.

Disclosure of Invention

The invention aims to provide a sealing strip cutting structure of an edge-splicing machine aiming at the problems in the prior art, and solves the technical problem of how to improve the sealing strip efficiency on the basis of ensuring the stability.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a seam machine pastes strip and cuts off structure, seam machine includes the aircraft nose, the overhead installation shell that has linked firmly of aircraft nose, its characterized in that cuts off the structure including set up in the installation shell and rotatable cam, wear to establish in the installation shell and can follow the slip strip that the installation shell reciprocated, link firmly the mount pad in the slip strip bottom and set up the chopper on the mount pad, the cam rotation can promote the slip strip and move down, be equipped with the piece that resets that enables the slip strip and shift up the restoration between slip strip and the installation shell.

The cam is externally connected with the servo motor, after the cloth is sewn and the strips are attached, the cam rotates to overcome the elastic force of the reset piece to push the sliding strips to move downwards, so that the mounting seat and the chopper move downwards to be matched with the static knife on the machine head of the splicing and sewing machine to cut off the strips, and then under the action of the elastic force of the reset piece, the sliding strips, the mounting seat and the chopper move upwards to reset, the strips are automatically cut off, an operator does not need to manually take scissors to cut off the strips, and therefore the strip attaching efficiency is improved, and the processing efficiency is improved. The cam is driven to rotate by the servo motor so as to drive the sliding strip to move, namely the downward moving speed of the chopping knife can be controlled, the speed of the chopping knife can be adjusted according to actual needs, and the strip sticking efficiency is improved while the stable moving of the chopping knife is ensured. The installation shell is used as an installation carrier, so that the cutting structure can be installed outside the head of the splicing and sewing machine, and the structure of the head of the splicing and sewing machine does not need to be changed.

In foretell patchwork machine pastes strip cutting structure, the mount pad is located the below of installation shell and is located outside the installation shell, the top of mount pad has the embedded groove of recessed setting, the bottom embedding of sliding strip is fixed in the embedded groove. The mount pad is located the below of installing shell and makes the stationary knife on the die-cutting knife is close to the aircraft nose more, and the space of rational utilization, the mount pad is located outside the installing shell, passes the mount pad through the bolt traversing and stretches into the embedded groove and support and lean on the sliding strip, makes mount pad and sliding strip link firmly mutually, makes mount pad and sliding strip link firmly conveniently.

In foretell patchwork strip cutting structure of patchwork machine, the promotion portion that the protrusion set up has on the cam, link firmly first bolt on the promotion portion, first bolt pole portion overcoat has the rolling sleeve that can rotate, the rolling sleeve is located between first bolt head and the cam, the rolling sleeve can promote the slip strip and remove. The rolling sleeve can be a bearing or a copper sleeve, and when the cam pushes the sliding strip to move downwards through the rolling sleeve, the rolling sleeve can rotate, so that the problem of clamping cannot exist when the cam pushes the sliding strip.

In foretell patchwork machine pastes strip and cuts off structure, the piece that resets is located the installation shell, have spacing face in the installation shell, reset under the effect of piece the top of sliding strip can support and lean on spacing face. The limiting surface plays a limiting role and ensures that the chopping knife is positioned at an initial position after returning to the original position.

In foretell seam welder welt cuts off structure, the top of sliding strip has the barrier part of protrusion setting, it establishes outside the sliding strip to reset a cover, just the one end that resets is used in the barrier part, and the other end is used in the installation shell. The piece that resets is cylindrical spring, and the setting up of barrier part makes the piece that resets can overlap on the sliding strip and can not drop, makes the elasticity that resets simultaneously can apply for the sliding strip.

In foretell seam welder furring strip cutting structure, the mount pad includes first adjusting bolt, regulating block and fixes the installation piece in the slip strip bottom, the regulating block pastes and leans on in the bottom of installation piece just installation piece and regulating block link firmly mutually through second bolt detachable, the border department of regulating block has the adjustment tank of recessed setting, what have the convex setting on the first adjusting bolt is annular regulation portion, first adjusting bolt is fixed in the installation piece just regulation part embedding sets up in the adjustment tank, rotates first adjusting bolt can stimulate the relative installation piece rotation of regulating block. During adjustment, the second bolt is screwed in advance, penetrates through the adjusting block and is fixedly connected with the mounting block, a gap is formed between the second bolt and the adjusting block, namely the mounting block is connected with the adjusting block, but the adjusting block can rotate relative to the mounting block, only the first adjusting bolt needs to be rotated, the adjusting block is driven to rotate around the second bolt through the adjusting part, the adjusting block deflects by a small angle relative to the mounting block, the chopping knife moves to a proper position, the chopping knife and the static knife can be better matched, the strip can be cut off, and finally the second bolt is screwed to fixedly connect the adjusting block and the mounting block.

In the above sealing strip cutting structure of the seam splicing machine, an adjusting rod penetrates through the adjusting block, one end of the adjusting rod is fixedly connected with an adjusting plate, a strip-shaped adjusting hole is formed in the adjusting plate, and a second adjusting bolt penetrates through the adjusting hole and enables the chopper and the adjusting plate to be fixedly connected. The position of the front and back directions of the chopping knife can be adjusted through the second adjusting bolt and the adjusting hole, so that the chopping knife moves to a proper position, the chopping knife and the static knife can be better matched, and the strip can be cut off.

In the above-mentioned strip cutting structure of the splicing machine, the adjusting block is internally provided with a recessed accommodating groove, the adjusting rod is externally sleeved with a compression spring, the adjusting rod is fixedly connected with a support block, the compression spring and the support block are both positioned in the accommodating groove, one end of the compression spring acts on the adjusting block, the other end of the compression spring acts on the support block, a gap is formed between one side of the support block, far away from the compression spring, and the adjusting block, one end of the adjusting rod, far away from the chopper, is fixedly connected with an adjusting nut, and the adjusting nut can support against the adjusting block under the action of the elastic force of the compression spring. The position of the adjusting rod can be changed by rotating the adjusting nut, the compression spring provides elasticity, and after the position of the chopping knife is adjusted, the adjusting rod and the adjusting block are always fixed, so that the position of the chopping knife is positioned; a gap is formed between one side, away from the compression spring, of the abutting block and the adjusting block, and the gap provides adjusting allowance.

In the above sealing strip cutting structure of the splicing and sewing machine, a locking nut is screwed on one end of the adjusting rod far away from the chopper, and the adjusting nut is located between the locking nut and the adjusting block. The locking nut locks the adjusting nut, so that the adjusting nut and the adjusting block are positioned, and the position of the chopping knife is positioned.

In foretell patchwork machine welt cutting structure, the gag lever post has been linked firmly in the regulating block, it parallels to adjust pole and gag lever post, still have on the regulating plate and be banding spacing hole, the gag lever post passes spacing hole, the gag lever post is laminated mutually with the inboard wall of spacing hole top and/or bottom. According to the structure, the limiting rod plays a role in limiting and guiding, the adjusting plate cannot rotate, the adjusting plate cannot deviate from the set direction when adjusted, and the adjusting precision of the chopping knife is improved.

Compared with the prior art, the joint strip cutting structure of the splicing machine provided by the invention has the following advantages:

1. this cut off structure passes through the cam and resets the cooperation of piece, and automatic cutout pastes the strip, need not the manual scissors of taking of operator and cuts, improves and pastes strip efficiency, improves machining efficiency.

The cutting structure is integrally arranged outside the machine head, the machine head structure of the splicing and sewing machine does not need to be changed, and the specific structure of the splicing and sewing machine cannot be changed.

The left and right positions, the front and back positions and the deflection angle of the chopping knife of the cutting structure can be adjusted, so that the position of the chopping knife is in place, and the strip chopping precision is improved.

Drawings

FIG. 1 is a schematic structural view of a cutting structure mounting position of the present patchwork machine.

FIG. 2 is a schematic view of the overall structure of the strip cutting structure of the present splicing and sewing machine.

FIG. 3 is a first schematic view of the structure of the cutting die for adjusting the cutting structure of the sealing strip of the splicing and sewing machine.

FIG. 4 is a second schematic view of the structure of the present patchwork machine strip cutting structure chopper adjustment.

In the figure, 1, a machine head; 2. mounting a shell; 21. a limiting surface; 3. a cam; 31. a pushing part; 4. a slide bar; 41. a blocking portion; 5. a mounting base; 51. a first adjusting bolt; 511. an adjustment section; 52. an adjusting block; 521. an adjustment groove; 522. accommodating a tank; 53. mounting blocks; 531. a groove is embedded; 54. a second bolt; 6. a chopper; 7. a reset member; 8. a first bolt; 9. a rolling sleeve; 10. adjusting a rod; 11. an adjusting plate; 111. an adjustment hole; 112. a limiting hole; 12. a second adjusting bolt; 13. a compression spring; 14. a leaning block; 15. adjusting the nut; 16. locking the nut; 17. a limiting rod.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in figure 1, the seam splicing machine comprises a machine head 1, wherein a mounting shell 2 is fixedly connected to the machine head 1, and a cutting structure is positioned at the mounting shell 2. The cutting structure comprises a cam 3, a sliding strip 4, a mounting seat 5, a chopping knife 6 and a resetting piece 7.

As shown in fig. 2, the cam 3 is fixed on the output shaft of the servo motor, the servo motor can drive the cam 3 to rotate, the cam 3 is located in the installation shell 2, the cam 3 is provided with a pushing portion 31 which is convexly arranged, the pushing portion 31 is fixedly connected with a first bolt 8, a rod portion of the first bolt 8 is externally sleeved with a rolling sleeve 9 which can rotate, the rolling sleeve 9 is located between the head of the first bolt 8 and the cam 3, in the embodiment, the rolling sleeve 9 is a bearing, and in the actual production, the rolling sleeve 9 can be a copper sleeve.

The top of sliding strip 4 has the protruding stop part 41 that sets up, has spacing face 21 in the installation shell 2, resets 7 and is located installation shell 2, resets 7 cover and establishes outside sliding strip 4, and resets 7 one end and act on stop part 41, and the other end acts on installation shell 2, and under the effect that resets 7, the top of sliding strip 4 can support and lean on spacing face 21. In this embodiment, the piece 7 that resets is cylindrical spring, and in actual production, the piece 7 that resets can be the extension spring.

The mounting seat 5 is located below the mounting shell 2 and outside the mounting shell 2, the mounting seat 5 includes a first adjusting bolt 51, an adjusting block 52 and a mounting block 53 fixed at the bottom of the sliding strip 4, as shown in fig. 4, the adjusting block 52 is attached to the bottom of the mounting block 53, the mounting block 53 and the adjusting block 52 are fixedly connected by a second bolt 54, a concave adjusting groove 521 is formed at the edge of the adjusting block 52, a convex annular adjusting portion 511 is formed on the first adjusting bolt 51, the first adjusting bolt 51 is fixed in the mounting block 53, and the adjusting portion 511 is partially embedded in the adjusting groove 521.

As shown in fig. 3, an adjusting rod 10 is movably positioned in an adjusting block 52 and penetrates through the adjusting block, specifically, an accommodating groove 522 which is recessed is formed in the adjusting block 52, a compression spring 13 is sleeved outside the adjusting rod 10, a support block 14 is fixedly connected outside the adjusting rod 10, both the compression spring 13 and the support block 14 are located in the accommodating groove 522, one end of the compression spring 13 acts on the adjusting block 52, the other end of the compression spring acts on the support block 14, a gap is formed between one side, away from the compression spring 13, of the support block 14 and the adjusting block 52, an adjusting nut 15 is fixedly connected at one end, away from a chopper 6, of the adjusting rod 10, the adjusting nut 15 can abut on the adjusting block 52 under the action of the elastic force of the compression spring 13, a locking nut 16 is screwed at one end, away from the chopper 6, of the adjusting rod 10, and the adjusting nut 15 is located between the locking nut 16 and the adjusting block 52.

One end of the adjusting rod 10 is fixedly connected with an adjusting plate 11, the adjusting plate 11 is provided with a strip-shaped adjusting hole 111 and a strip-shaped limiting hole 112, a second adjusting bolt 12 penetrates through the adjusting hole 111, and the second adjusting bolt 12 enables the chopper 6 and the adjusting plate 11 to be fixedly connected. The regulating block 52 is fixedly connected with a limiting rod 17, the regulating rod 10 is parallel to the limiting rod 17, the limiting rod 17 penetrates through the limiting hole 112, in the embodiment, the limiting rod 17 is attached to the top inner side wall of the limiting hole 112 and the inner side wall of the bottom of the limiting hole 112, in actual production, the limiting rod 17 can be attached to the top inner side wall of the limiting hole 112 only, and can also be attached to the bottom inner side wall of the limiting hole 112 only.

Before working, the position of the chopping knife 6 is adjusted. During operation, the servo motor drives the cam 3 to rotate, the rolling sleeve 9 on the cam 3 contacts the sliding strip 4 and pushes the sliding strip 4 to move downwards along the mounting shell 2, the chopping knife 6 moves downwards to realize strip chopping, after the strip chopping is completed, the servo motor drives the cam 3 to return to zero and reset, in the process, the reset piece 7 provides elastic force to push the sliding strip 4 to move upwards along the mounting shell 2 until the sliding strip 4 abuts against the limiting surface 21, and at the moment, the chopping knife 6 returns to the original position.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments, or alternatives may be employed, by those skilled in the art, without departing from the spirit or ambit of the invention as defined in the appended claims.

Although terms of the head 1, the mounting case 2, the stopper surface 21, the cam 3, the pushing portion 31, the slide bar 4, the blocking portion 41, the mounting seat 5, the first adjusting bolt 51, the adjusting portion 511, the adjusting block 52, the adjusting groove 521, the receiving groove 522, the mounting block 53, the fitting groove 531, the second bolt 54, the chopper 6, the reset member 7, the first bolt 8, the rolling sleeve 9, the adjusting lever 10, the adjusting plate 11, the adjusting hole 111, the stopper hole 112, the second adjusting bolt 12, the compression spring 13, the abutment block 14, the adjusting nut 15, the lock nut 16, the stopper rod 17, and the like are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. A sealing strip cutting structure of a sealing machine comprises a machine head (1), wherein a mounting shell (2) is fixedly connected on the machine head (1), it is characterized in that the cutting structure comprises a rotatable cam (3) arranged in the mounting shell (2), a sliding strip (4) which is arranged in the mounting shell (2) in a penetrating way and can move up and down along the mounting shell (2), a mounting seat (5) fixedly connected at the bottom of the sliding strip (4) and a chopping knife (6) arranged on the mounting seat (5), the cam (3) rotates to push the sliding strip (4) to move downwards, a reset piece (7) which can enable the sliding strip (4) to move upwards and reset is arranged between the sliding strip (4) and the mounting shell (2), the reset piece (7) is positioned in the installation shell (2), a limiting surface (21) is arranged in the installation shell (2), the top of the sliding strip (4) can abut against the limiting surface (21) under the action of the resetting piece (7).

2. The strip cutting structure of the splicing and sewing machine according to claim 1, wherein the mounting seat (5) is located below the mounting shell (2) and outside the mounting shell (2), the top of the mounting seat (5) is provided with a recessed embedded groove (531), and the bottom of the sliding strip (4) is embedded and fixed in the embedded groove (531).

3. The welt cutting structure of the splicing machine according to claim 1, wherein the cam (3) is provided with a pushing portion (31) which is arranged in a protruding manner, the pushing portion (31) is fixedly connected with a first bolt (8), a rolling sleeve (9) capable of rotating is sleeved outside the rod portion of the first bolt (8), the rolling sleeve (9) is positioned between the head portion of the first bolt (8) and the cam (3), and the rolling sleeve (9) can push the sliding strip (4) to move.

4. A strip cutting structure for a splicing and sewing machine according to claim 1, 2 or 3, characterized in that the top of the sliding strip (4) is provided with a protruding stopping part (41), the resetting piece (7) is sleeved outside the sliding strip (4), one end of the resetting piece (7) acts on the stopping part (41), and the other end acts on the mounting shell (2).

5. The welt cutting structure of an abutting machine according to claim 1, 2 or 3, the mounting seat (5) comprises a first adjusting bolt (51), an adjusting block (52) and a mounting block (53) fixed at the bottom of the sliding strip (4), the adjusting block (52) is attached to the bottom of the mounting block (53), the mounting block (53) and the adjusting block (52) are detachably and fixedly connected through a second bolt (54), the edge of the adjusting block (52) is provided with an adjusting groove (521) which is arranged in a concave way, the first adjusting bolt (51) is provided with a protruding annular adjusting part (511), the first adjusting bolt (51) is fixed in the mounting block (53) and the adjusting part (511) is partially embedded in the adjusting groove (521), the first adjusting bolt (51) can be rotated to pull the adjusting block (52) to rotate relative to the mounting block (53).

6. The strip cutting structure of the seam splicing machine according to claim 5, wherein an adjusting rod (10) is arranged in the adjusting block (52) in a penetrating manner, an adjusting plate (11) is fixedly connected to one end of the adjusting rod (10), a strip-shaped adjusting hole (111) is formed in the adjusting plate (11), a second adjusting bolt (12) is arranged in the adjusting hole (111) in a penetrating manner, and the second adjusting bolt (12) enables the chopping knife (6) and the adjusting plate (11) to be fixedly connected.

7. The strip cutting structure of the sewing machine according to claim 6, characterized in that the adjusting block (52) has a recessed accommodating groove (522), the adjusting rod (10) is sleeved with a compression spring (13), the adjusting rod (10) is further fixedly connected with a support block (14), the compression spring (13) and the support block (14) are both located in the accommodating groove (522), one end of the compression spring (13) acts on the adjusting block (52), the other end of the compression spring acts on the support block (14), a gap is formed between one side of the support block (14) far away from the compression spring (13) and the adjusting block (52), one end of the adjusting rod (10) far away from the chopping knife (6) is fixedly connected with an adjusting nut (15), and the adjusting nut (15) can be abutted against the adjusting block (52) under the elastic force of the compression spring (13).

8. The strip cutting structure of the seam splicing machine according to claim 7, wherein a locking nut (16) is screwed on one end of the adjusting rod (10) far away from the chopping knife (6), and the adjusting nut (15) is positioned between the locking nut (16) and the adjusting block (52).

9. The welt cutting structure of an edge-splicing machine according to claim 6, wherein a limiting rod (17) is fixedly connected in the adjusting block (52), the adjusting rod (10) is parallel to the limiting rod (17), a strip-shaped limiting hole (112) is further formed in the adjusting plate (11), the limiting rod (17) penetrates through the limiting hole (112), and the limiting rod (17) is attached to the inner side wall of the top and/or the bottom of the limiting hole (112).