CN107675369B

CN107675369B - Auxiliary edge folding device

Info

Publication number: CN107675369B
Application number: CN201711145006.8A
Authority: CN
Inventors: 田国兵; 李卫超; 张建波; 杨聪聪
Original assignee: Jack Sewing Machine Co Ltd
Current assignee: Jack Technology Co Ltd
Priority date: 2017-11-17
Filing date: 2017-11-17
Publication date: 2020-04-14
Anticipated expiration: 2037-11-17
Also published as: CN107675369A

Abstract

The invention discloses an auxiliary edge folding device which comprises a mounting seat, a push plate arranged above the mounting seat and a trigger plate arranged above the push plate, wherein the push plate is arranged above the mounting seat; a first sliding groove and a second sliding groove which are parallel are arranged on the mounting seat, a first fixing pin and a second fixing pin are fixedly arranged at the bottom of the push plate, a first reset spring is connected between the first fixing pin and the mounting seat, and a second reset spring is arranged on the second fixing pin; a limiting block is fixedly arranged on the wall of the second chute, a limiting pin is fixedly arranged at the bottom of the trigger plate, a limiting hole is formed in the push plate, the limiting pin penetrates through the limiting hole to be connected with a second reset spring, the limiting pin can move in the limiting hole, and the second reset spring enables the limiting pin to have a movement trend of being clamped with the limiting block; under the spacer pin and the stopper joint state, elastic deformation takes place for first reset spring, and the lateral wall that trigger plate protrusion extended along push pedal direction of motion on the push pedal. The auxiliary edge folding device is beneficial to improving edge folding sewing efficiency and saving cost.

Description

Auxiliary edge folding device

Technical Field

The invention relates to the technical field of sewing equipment, in particular to an auxiliary edge folding device.

Background

The hemming process is a widely used process in clothing process, and in order to ensure the trim and beauty of hems in the sewing process, a corresponding hemming device is usually adopted, and a push plate in the hemming device is placed between the folded two-side cloth and gradually sewn. Because the whole circle of sewing is usually required to be finished in the sewing operation, the sewing starting position is hindered by the push plate when the whole circle of sewing is about to be finished, and the push plate is usually required to be pushed away manually, so that the cloth can continuously advance to finish the whole circle of sewing. Taking sewing the lower hem as an example, the specific operation flow is as follows: folding the cloth, putting the cloth into a flanging device, pushing a push plate in the flanging device into the middle of two layers of cloth, starting sewing, pushing a left push plate when the looping is finished, and finishing the looping of the lower hem. The mode of pushing the push plate away manually wastes time and labor, and the flanging operation efficiency is reduced.

Therefore, how to improve the hemming sewing efficiency is a technical problem that needs to be solved by the technicians in the field at present.

Disclosure of Invention

In view of the above, the present invention provides an auxiliary hemming device, which can improve hemming sewing efficiency.

In order to achieve the purpose, the invention provides the following technical scheme:

an auxiliary edge folding device comprises a mounting seat fixedly arranged on a sewing table cover plate, a push plate arranged above the mounting seat and a trigger plate arranged above the push plate;

the mounting seat is provided with a first sliding groove and a second sliding groove which are parallel, the bottom of the push plate is fixedly provided with a first fixing pin capable of sliding in the first sliding groove and a second fixing pin capable of sliding in the second sliding groove, a first reset spring is connected between the first fixing pin and the mounting seat, and a second reset spring is arranged on the second fixing pin;

a limiting block is fixedly arranged on the groove wall of the second sliding groove, a limiting pin is fixedly arranged at the bottom of the trigger plate, a limiting hole is formed in the push plate, the limiting pin penetrates through the limiting hole to be connected with the second reset spring, the limiting pin can move in the limiting hole, and the second reset spring enables the limiting pin to have a movement trend of being clamped with the limiting block;

the spacer pin with under the stopper joint state, elastic deformation takes place for first reset spring, trigger the board protrusion in one edge in the push pedal the lateral wall that the push pedal direction of motion extends.

Preferably, the mounting seat is adjustably positioned on the slot table cover plate.

Preferably, the bottom of the trigger plate is fixedly provided with a third fixing pin, and the third fixing pin penetrates through the push plate and extends into the second sliding groove.

Preferably, the third fixing pin is a limit screw, a limit nut used for being connected with the limit screw in a matched mode is arranged in the second sliding groove, the limit nut is slidably arranged in the second sliding groove, and the periphery of the limit nut is clamped with the groove wall of the second sliding groove.

Preferably, the second return spring is a torsion spring, the torsion spring is fixedly sleeved on the second fixed pin, and one free end of the torsion spring is buckled on the limit pin.

Preferably, the limiting block faces towards the arc protrusion protruding from the inside of the second sliding groove, and the torsion spring is provided with an arc section matched with the arc protrusion in shape.

Preferably, the first return spring is a tension spring arranged in the first sliding groove, and a fourth fixing pin used for connecting the first return spring is fixedly arranged on the mounting seat.

Preferably, the fixed fixing bolt that is equipped with in bottom of push pedal, be equipped with in the first spout be used for with fixing nut that fixing bolt cooperation is connected, fixing nut slidable ground locates in the first spout, just fixing nut's periphery with the cell wall joint of first spout.

Preferably, the limiting hole is an arc-shaped hole consistent with a rotation path of the limiting pin.

Preferably, the gas blowing device further comprises a stop block arranged on one side of the push plate, the stop block is provided with a cantilever type structure capable of blocking the upper side of the edge of the push plate, and the stop block is provided with a gas blowing hole used for being connected with a gas blowing device.

The auxiliary edge folding device comprises an installation seat, a push plate and a trigger plate, wherein a first sliding groove and a second sliding groove which are parallel to each other are formed in the installation seat, a first fixing pin and a second fixing pin are fixedly arranged at the bottom of the push plate, a first reset spring is connected between the first fixing pin and the installation seat, and a second reset spring is arranged on the second fixing pin. The cell wall of second spout is last to be fixed to be equipped with the stopper, triggers the fixed spacer pin that is equipped with in bottom of board, is equipped with spacing hole in the push pedal, and the spacer pin passes spacing hole and is connected with second reset spring, and the spacer pin can be in spacing hole activity, and second reset spring makes the spacer pin have the motion trend with the stopper joint. Under the spacer pin and the stopper joint state, elastic deformation takes place for first reset spring, and the lateral wall that trigger plate protrusion extended along push pedal direction of motion on the push pedal.

During concrete operation, promote the push pedal, first fixed pin, second fixed pin slide along the spout that corresponds, and deformation takes place for first reset spring, and when the spacer pin moved to stopper department, under second reset spring's effect, the spacer pin moved to with the stopper joint, push pedal stop motion, the push pedal is in and makes up the position.

The cloth is put on the push plate, and is particularly placed on a side wall which is approximately vertical to the movement direction of the push plate, so that the two layers of folded cloth are respectively positioned on the upper side and the lower side of the push plate, and the trigger plate protrudes out of the side wall which is far away from a sewing machine needle on the push plate and extends along the movement direction of the push plate.

The cloth is pushed towards the sewing machine needle to start sewing, and the direction of pushing the cloth is approximately vertical to the motion direction of the push plate. Because a whole circle is to be sewn, when the cloth circle is to be sewn, the initial sewing part moves back to the push plate, and along with the continuous movement of the cloth, the initial sewing part can push the part of the trigger plate protruding out of the push plate along the cloth moving direction.

Along with trigger the board and promoted gradually, because the spacer pin is fixed mutually with triggering the board, the joint is relieved gradually to spacer pin and stopper. When the limiting pin is completely separated from the limiting block, the first return spring performs return movement to drive the push plate and the trigger plate on the push plate to move to the original position. The remainder of the cloth continues to move until sewn into engagement with the originally sewn portion.

Among this kind of supplementary hem device, make the initial position of making up on the cloth can trigger triggering the board, make the spacer pin break away from the stopper, the restriction to first reset spring has been removed simultaneously, the push pedal returns the normal position under first reset spring's drive, make the whole circle that the in-process need not the manual control push pedal and can accomplish the cloth smoothly make up, time saving and labor saving, be favorable to improving the hem and make up efficiency, and simultaneously, adopt reset spring to control the push pedal and the motion that triggers the board, be favorable to practicing thrift the cost, and simple structure, can save occupation space, improve the convenience of sewing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic view of a sewing machine to which the auxiliary hemming device of the present invention is applied;

FIG. 2 is a bottom view of a trigger plate in an embodiment of the auxiliary hemming device provided in the present invention;

FIG. 3 is a top view of an embodiment of the auxiliary hemming device provided in the present invention;

FIG. 4 is a top view of the lower portion of the trigger plate in an embodiment of the auxiliary hemming device provided in the present invention;

FIG. 5 is a top view of a mounting base in an embodiment of the auxiliary hemming device provided in the present invention;

FIG. 6 is a bottom view of an embodiment of the auxiliary folding device provided by the present invention with the push plate in place;

FIG. 7 is a side view of an embodiment of the auxiliary hemming device of the present invention with the push plate in place;

FIG. 8 is a bottom view of an embodiment of the auxiliary folding device of the present invention with the pushing plate in a sewing position;

FIG. 9 is a side view of an embodiment of an auxiliary hemming device of the present invention with the push plate in a sewing position;

fig. 10 is a top view of an auxiliary folding device according to an embodiment of the present invention when the stopper pin and the stopper are unlocked.

In fig. 1 to 10: 1-sewing table cover plate, 2-mounting seat, 21-fourth fixing pin, 22-limiting block, 23-limiting nut, 24-fixing nut, 25-second sliding groove, 26-fastening bolt, 27-first sliding groove, 3-push plate, 31-first fixing pin, 32-second fixing pin, 33-limiting hole, 34-fixing bolt, 4-trigger plate, 41-limiting pin, 42-third fixing pin, 5-second reset spring, 6-stop block, 7-sewing machine needle and 8-first reset spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The core of the invention is to provide an auxiliary edge folding device which can improve edge folding sewing efficiency.

Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of a sewing machine to which the auxiliary hemming device of the present invention is applied; FIG. 2 is a bottom view of a trigger plate in an embodiment of the auxiliary hemming device provided in the present invention; FIG. 3 is a top view of an embodiment of the auxiliary hemming device provided in the present invention; FIG. 4 is a top view of the lower portion of the trigger plate in an embodiment of the auxiliary hemming device provided in the present invention; fig. 5 is a top view of a mounting base in an embodiment of the auxiliary folding device provided in the present invention.

The invention provides a specific embodiment of an auxiliary flanging device, which comprises a mounting seat 2 fixedly arranged on a sewing platform cover plate 1, a push plate 3 arranged above the mounting seat 2 and a trigger plate 4 arranged above the push plate 3.

The mounting base 2 is provided with a first sliding groove 27 and a second sliding groove 25 which are parallel to each other, and the first sliding groove 27 and/or the second sliding groove 25 can specifically penetrate through the mounting base 2 or be a strip-shaped groove arranged on the upper surface of the mounting base 2. The bottom of the push plate 3 is fixedly provided with a first fixing pin 31 capable of sliding in the first slide groove 27 and a second fixing pin 32 capable of sliding in the second slide groove 25. The first link 27 may guide the movement of the first fixing pin 31, and the second link 25 may guide the movement of the second fixing pin 32. The extending direction of the first slide groove 27 and the second slide groove 25 is the moving direction of the push plate 3. A first return spring 8 is connected between the first fixing pin 31 and the mounting seat 2, and a second return spring 5 is arranged on the second fixing pin 32.

The groove wall of the second sliding groove 25 is fixedly provided with a limiting block 22, the bottom of the trigger plate 4 is fixedly provided with a limiting pin 41, and the push plate 3 is provided with a limiting hole 33. The limit pin 41 can pass through the limit hole 33 to be connected with the second return spring 5, and the limit pin 41 can move in the limit hole 33. The second return spring 5 makes the stopper pin 41 have a tendency to move in a snap-fit engagement with the stopper 22.

Under the clamping state of the limiting pin 41 and the limiting block 22, the first return spring 8 is elastically deformed. The trigger plate 4 protrudes from the push plate 3 and has a side wall extending along the moving direction of the push plate 3, wherein the side wall may be an arc-shaped wall or a straight wall extending along the moving direction of the push plate 3.

During the concrete operation, promote push pedal 3, first fixed pin 31, second fixed pin 32 slide along the spout that corresponds, and first reset spring 8 takes place to deform, and when spacer pin 41 moved to stopper 22 department, under the effect of second reset spring 5, spacer pin 41 moved to with stopper 22 joint, push pedal 3 stop motion, push pedal 3 is in the position of making up, please refer to fig. 8 and 9 specifically.

The cloth is put on the push plate 3, and is particularly placed on a side wall which is approximately vertical to the moving direction of the push plate 3, so that the two layers of folded cloth are respectively positioned on the upper side and the lower side of the push plate 3, and the trigger plate 4 protrudes out of the push plate 3, is far away from a needle 7 of the sewing machine and extends along the moving direction of the push plate 3.

The cloth is pushed towards the sewing machine needle 7 to start sewing, and the cloth pushing direction is approximately vertical to the movement direction of the push plate 3. Because a whole circle is to be sewn, when the cloth is to be sewn completely in a circle, the initial sewing part moves back to the push plate 3, and along with the continuous movement of the cloth, the initial sewing part can push the part of the trigger plate 4, which protrudes out of the push plate 3, along the cloth moving direction.

Because the stop pin 41 is fixed to the trigger plate 4, the stop pin 41 and the stop block 22 are gradually released from engagement with each other as the trigger plate 4 is gradually pushed. Referring to fig. 10, when the stopper pin 41 is completely separated from the stopper 22, the first return spring 8 performs a return movement to drive the push plate 3 and the trigger plate 4 thereon to move to the original position, referring to fig. 6 and 7. The remainder of the cloth continues to move until sewn into engagement with the originally sewn portion.

In the supplementary hem device that this embodiment provided, make up the in-process and need not manual control push pedal 3 and can accomplish the whole circle of cloth smoothly and make up, labour saving and time saving is favorable to improving the hem and makes up efficiency, simultaneously, adopts reset spring to control push pedal 3 and trigger plate 4's motion, is favorable to practicing thrift the cost, and simple structure, can save occupation space, improves the convenience of sewing.

On the basis of the above embodiment, referring to fig. 1 in particular, the mounting seat 2 can be arranged on the sewing table cover plate 1 in a position-adjustable manner, so that the position of the push plate 3 relative to the sewing machine needle 7 can be adjusted to meet different folding width requirements. Wherein, the fixed position between the mounting seat 2 and the seam table cover plate 1 can be adjusted by various modes. Alternatively, the mounting base 2 may be provided with a long hole, the extending direction of which may be specifically parallel to the extending direction of the first sliding groove 27, and the fastening bolt 26 passes through the long hole to fix the mounting base 2 on the stitch platform cover plate 1, and the setting position of the long hole may be set as required.

On the basis of any of the above embodiments, referring to fig. 2 and fig. 4 specifically, the bottom of the trigger plate 4 may be fixedly provided with a third fixing pin 42, and the third fixing pin 42 penetrates through the push plate 3 and extends into the second chute 25, so that the second chute 25 may play a role in restricting the movement of the trigger plate 4 through the third fixing pin 42, and meanwhile, in the process of clamping and releasing the limiting pin 41 with the limiting block 22, the third fixing pin 42 may serve as a rotation center of the trigger plate 4, thereby improving the stability of the rotation of the trigger plate 4.

Specifically, referring to fig. 4 and 5, the third fixing pin 42 may be a limit screw, a limit nut 23 for being connected with the limit screw in a matching manner may be disposed in the second sliding groove 25, the limit nut 23 may be slidably disposed in the second sliding groove 25, and the periphery of the limit nut 23 is clamped with a groove wall of the second sliding groove 25, so as to limit the trigger plate 4 and the push plate 3 in the up-down direction, and prevent the trigger plate 4 and the push plate 3 from being separated from the mounting base 2 upwards.

On the basis of any of the above embodiments, referring to fig. 6, the second return spring 5 may be a torsion spring, the torsion spring is fixedly sleeved on the second fixing pin 32, and a free end of the torsion spring is buckled on the limit pin 41. The fixed sleeving of the torsion spring on the second fixing pin 32 means that the torsion spring cannot freely rotate around the second fixing pin 32, so as to ensure that the torsion spring reliably applies pressure to the limit pin 41, and particularly, the fixed sleeving can be realized by abutting the other free end of the torsion spring, which is not connected with the limit pin 41, against the groove wall of the second chute 25.

Further, referring to fig. 5 specifically, the limiting block 22 may be an arc protrusion protruding toward the inside of the second sliding groove 25, and an arc section matched with the arc protrusion in shape is disposed on the torsion spring to ensure the stability of the clamping.

Of course, the second return spring 5 is not limited to be a torsion spring, and may be a snap spring or other springs.

On the basis of any of the above embodiments, referring to fig. 5 in particular, the first return spring 8 may be a tension spring disposed in the first sliding groove 27, the mounting seat 2 is fixedly provided with a fourth fixing pin 21 for connecting the first return spring 8, and the first return spring 8 is disposed in the first sliding groove 27, so that the movement of the first return spring 8 can be constrained, which is beneficial to improving the stability of the return movement. Of course, the first return spring 8 may be a compression spring or other springs.

On the basis of any of the above embodiments, referring to fig. 4 and 5, the bottom of the push plate 3 may be fixedly provided with a fixing bolt 34, the first sliding groove 27 is provided with a fixing nut 24 for matching and connecting with the fixing bolt 34, the fixing nut 24 is slidably disposed in the first sliding groove 27, and the periphery of the fixing nut 24 is clamped with the groove wall of the first sliding groove 27. The push plate 3 is further prevented from being separated upward from the mount 2 by the fitting of the fixing bolt 34 with the fixing nut 24.

On the basis of any of the above embodiments, referring to fig. 4, the limiting hole 33 is an arc-shaped hole consistent with the rotation path of the limiting pin 41, so as to improve the stability of the rotation of the limiting pin 41.

On the basis of any of the above embodiments, referring to fig. 6 to 9, the auxiliary folding device may further include a stopper 6 disposed at one side of the push plate 3, and the stopper 6 has a cantilever structure capable of blocking the upper side of the edge of the push plate 3. The stop block 6 is provided with a blowing hole for connecting a blowing device, and the blowing device can blow towards the cloth on the push plate 3 in the hemming sewing process so as to ensure that the cloth is flat. Wherein, the stop block 6 can be connected on the slot table cover plate 1 through screws. In addition, the stop 6 may be adjustable in position on the table cover 1.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The auxiliary hemming device provided by the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. An auxiliary edge folding device is characterized by comprising a mounting seat (2) fixedly arranged on a sewing platform cover plate (1), a push plate (3) arranged above the mounting seat (2) and a trigger plate (4) arranged above the push plate (3);

a first sliding groove (27) and a second sliding groove (25) which are parallel to each other are arranged on the mounting seat (2), the extending directions of the first sliding groove (27) and the second sliding groove (25) are the moving direction of the push plate (3), a first fixing pin (31) capable of sliding in the first sliding groove (27) and a second fixing pin (32) capable of sliding in the second sliding groove (25) are fixedly arranged at the bottom of the push plate (3), a first reset spring (8) is connected between the first fixing pin (31) and the mounting seat (2), and a second reset spring (5) is arranged on the second fixing pin (32);

a limiting block (22) is fixedly arranged on the groove wall of the second sliding groove (25), a limiting pin (41) is fixedly arranged at the bottom of the trigger plate (4), a limiting hole (33) is formed in the push plate (3), the limiting pin (41) penetrates through the limiting hole (33) to be connected with the second reset spring (5), the limiting pin (41) can move in the limiting hole (33), and the second reset spring (5) enables the limiting pin (41) to have a movement trend of being clamped with the limiting block (22);

spacer pin (41) with under stopper (22) joint state, elastic deformation takes place for first reset spring (8), trigger plate (4) protrusion in last one of push pedal (3) is followed the lateral wall that push pedal (3) direction of motion extended.

2. Auxiliary hemming device according to claim 1 wherein the mounting base (2) is position-adjustably provided on the table cover (1).

3. Auxiliary flanging device according to claim 2, characterized in that a third fixing pin (42) is fixedly arranged at the bottom of the trigger plate (4), and the third fixing pin (42) penetrates through the push plate (3) and extends into the second sliding groove (25).

4. An auxiliary folding device according to claim 3, characterized in that the third fixing pin (42) is a limit screw, a limit nut (23) for matching connection with the limit screw is arranged in the second sliding groove (25), the limit nut (23) is slidably arranged in the second sliding groove (25), and the periphery of the limit nut (23) is clamped with the groove wall of the second sliding groove (25).

5. An auxiliary hemming device according to any one of claims 1 to 4 wherein the second return spring (5) is a torsion spring fixedly sleeved on the second fixing pin (32), and one free end of the torsion spring is fastened on the limit pin (41).

6. An auxiliary folding device according to claim 5, wherein the limiting block (22) is an arc-shaped protrusion protruding towards the inside of the second sliding groove (25), and the torsion spring is provided with an arc-shaped section matched with the shape of the arc-shaped protrusion.

7. An auxiliary folding device according to claim 5, characterized in that the first return spring (8) is a tension spring arranged in the first sliding groove (27), and a fourth fixing pin (21) for connecting the first return spring (8) is fixedly arranged on the mounting base (2).

8. The auxiliary flanging device according to any one of claims 1 to 4, wherein a fixing bolt (34) is fixedly arranged at the bottom of the push plate (3), a fixing nut (24) for being matched and connected with the fixing bolt (34) is arranged in the first sliding groove (27), the fixing nut (24) is slidably arranged in the first sliding groove (27), and the periphery of the fixing nut (24) is clamped with the groove wall of the first sliding groove (27).

9. Auxiliary flanging device according to any one of claims 1 to 4, characterized in that the limiting hole (33) is an arc-shaped hole which coincides with the rotation path of the limiting pin (41).

10. The auxiliary flanging device according to any one of claims 1 to 4, further comprising a stop block (6) arranged on one side of the push plate (3), wherein the stop block (6) has a cantilever structure capable of being shielded above the edge of the push plate (3), and the stop block (6) is provided with a gas blowing hole for connecting a gas blowing device.