CN210420431U

CN210420431U - Belt folding machine, sewing assembly and double-presser foot mechanism thereof

Info

Publication number: CN210420431U
Application number: CN201920329016.5U
Authority: CN
Inventors: 郭创华
Original assignee: Zhuhai Yunkong Ruiqi Numerical Control Science & Technology Co ltd
Current assignee: Zhuhai Yunkong Ruiqi Numerical Control Science & Technology Co ltd
Priority date: 2019-03-14
Filing date: 2019-03-14
Publication date: 2020-04-28
Anticipated expiration: 2029-03-14

Abstract

The utility model discloses a double-presser foot mechanism, which comprises a bracket, a first presser foot and a second presser foot, wherein the first presser foot and the second presser foot are respectively connected with corresponding power structures; the pressing end of the first presser foot is C-shaped; the opening of the pressing end of the first presser foot is used for accommodating the pressing end of the second presser foot to move up and down. The front end and the rear end of the folded belt part are accurately pressed, the folded belt part is straight, the sewing length of the folded belt is accurate no matter how long the folded belt is, and the sewing quality is good and attractive. The sewing assembly can comprise the double-presser foot mechanism, and the belt folding machine can comprise the sewing assembly.

Description

Belt folding machine, sewing assembly and double-presser foot mechanism thereof

Technical Field

The utility model relates to a two presser foot mechanisms especially relate to a be applied to sewing equipment's two presser foot mechanisms, for example roll over and take sewing machine.

Background

In the tape folding machine, in the manufacturing of the material tapes, such as the trouser ears (usually used for fastening the belt in the trousers), the nameplate small belt of the jacket (corresponding to the position of the back neck of the human body), and the like, one end or two ends of the material tape are often folded and sewn.

Only one side presser foot is provided; when the folded belt is short, the belt pressing precision is poor, and the position sewing of the folded belt is not facilitated; moreover, the folded belt at the position needing to be sewed is easy to be separated by a larger distance, and the sewing precision and quality are poorer.

SUMMERY OF THE UTILITY MODEL

For overcoming the deficiencies of the prior art, the utility model adopts the technical scheme that:

a double-presser foot mechanism comprises a support, a first presser foot and a second presser foot, wherein the first presser foot and the second presser foot are respectively connected with corresponding power structures; the pressing end of the first presser foot is C-shaped; the opening of the pressing end of the first presser foot is used for accommodating the pressing end of the second presser foot to move up and down.

According to another embodiment of the present invention, there is further provided a power structure correspondingly connected to the first presser foot, for driving the first presser foot to swing; the first presser foot comprises a first swing arm section and a first presser foot section arranged on the first swing arm section, and the included angle between the first swing arm section and the first presser foot section is adjustable.

According to another embodiment of the present invention, there is further provided a power structure correspondingly connected to the first presser foot, for driving the first presser foot to ascend and descend.

According to another embodiment of the present invention, further, the power structure correspondingly connected to the first presser foot comprises a crank arm, and the middle part of the crank arm is hinged to the support; one end of the crank arm is connected with the first presser foot, and the other end of the crank arm is connected with the return spring and the power piece; and the power part and the return spring are used for driving the first presser foot to ascend, and the other one is used for driving the first presser foot to descend.

According to another embodiment of the present invention, further, the bracket is provided with a sliding groove for accommodating the first presser foot.

According to another specific embodiment of the present invention, further, a power structure correspondingly connected to the second presser foot is used for driving the second presser foot to swing; the second presser foot comprises a second swing arm section and a second presser foot section arranged on the second swing arm section, and the included angle between the second swing arm section and the second presser foot section is adjustable.

According to another embodiment of the present invention, further, the middle part of the second presser foot is hinged to the support, and the second presser foot is connected to the swing cylinder; and a piston rod and a shell of the swinging cylinder body, wherein one is hinged with the second presser foot, and the other is hinged with the bracket.

A sewing assembly comprises a double-presser foot mechanism, a frame and a supporting plate, wherein the double-presser foot mechanism is arranged on a sewing platform of the sewing assembly, and the middle part of the frame is hinged with the frame; the support and the supporting plate are connected with the same swing mechanism, and the swing mechanism drives the support and the supporting plate to swing synchronously.

A tape folding machine comprises a sewing assembly, a preparation material belt assembly, an ironing belt assembly, a belt conveying and cutting assembly and a clamping and folding assembly; the preparation material belt assembly, the ironing belt assembly, the belt conveying and shearing assembly, the clamping belt turnover assembly and the sewing assembly are sequentially arranged along the material belt transmission direction.

The utility model discloses a pair of pressure foot mechanism, following beneficial effect has: the front end and the rear end of the folded belt part are accurately pressed, the folded belt part is straight, the sewing length of the folded belt is accurate no matter how long the folded belt is, and the sewing quality is good and attractive.

Drawings

FIG. 1 is a front view of the sewing assembly of the present invention, with the power structure of the first presser foot omitted;

FIG. 2 is a schematic structural view of the sewing assembly of the present invention, omitting the power structure of the first presser foot;

fig. 3 is a schematic structural view of a first view angle of the double presser foot mechanism of the present invention, omitting the power structure of the first presser foot;

fig. 4 is a schematic structural view of a second view angle of the double presser foot mechanism of the present invention, omitting the power structure of the first presser foot;

fig. 5 is a schematic diagram of the first presser foot of the present invention;

fig. 6 is a schematic diagram of the second presser foot of the present invention;

fig. 7 is a schematic view of the double-presser foot mechanism pressing the material belt;

fig. 8 is a schematic view of the folding machine of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1 to 7, a double presser foot mechanism includes a support 12, a first presser foot 13 and a second presser foot 14, wherein the first presser foot 13 and the second presser foot 14 are respectively connected with corresponding power structures; the pressing end of the first presser foot 13 is C-shaped; the opening of the pressing end of the first presser foot 13 is used for accommodating the pressing end of the second presser foot 14 to move up and down.

The material is fed below the presser foot, and the second presser foot 14 presses one end of the material; whereas the first presser foot 13 presses the other end of the material; the second presser foot 14 may then be selectively released. As shown in fig. 7, for the folded seam of the material belt, the seam position is the outer end of the fork, the left side of the material belt is mainly pressed, the second presser foot 14 can be selectively loosened, the seam is performed in the middle of the C-shaped, and the seam quality is improved. In the process of sewing partial materials, the periphery of the sewing position needs to be pressed.

The power structure correspondingly connected with the first presser foot 13 can be set as follows: the power structure is used for driving the first presser foot 13 to swing; the first presser foot 13 comprises a first swing arm section and a first presser foot section arranged on the first swing arm section, and the included angle between the first swing arm section and the first presser foot section is adjustable.

As shown in fig. 5, the power structure correspondingly connected to the first presser foot 13 may be configured as follows: the power structure correspondingly connected with the first presser foot 13 is used for driving the first presser foot 13 to lift. The power structure comprises a crank arm 15a, wherein the middle part of the crank arm 15a is hinged with the bracket 12; one end of the crank arm 15a is connected with the first presser foot 13, and the other end is connected with a return spring 15c and a power piece; and the power part and the return spring 15c are used for driving the first presser foot 13 to ascend, and driving the first presser foot 13 to descend. The power member may be only a cylinder, a piston rod and a housing of the cylinder, an articulated crank arm 15a, and a bracket 12 of the other articulated frame 11. The power member may be a link 15b including an articulated crank arm 15 a; one end of the connecting rod 15b far away from the crank arm 15a is hinged with a piston rod of a cylinder body, and the connecting part of the connecting rod 15b and the piston rod of the cylinder body is accommodated in a guide groove to slide; the cylinder body can be a cylinder or a hydraulic cylinder.

As shown in FIG. 5, the cylinder piston rod slides to the left (i.e. in the direction of T1), the lower end of the connecting rod swings upwards in an inclined way (i.e. in the direction of T2), and the left section of the crank arm swings upwards (i.e. in the direction of T3). When pressed, the action directions are Y1 and Y2 in sequence. The first presser foot is provided with a through hole, and the crank arm is provided with a contact pin which can penetrate through the through hole; the through hole has a certain size and can accommodate the contact pin to pass through, namely swing slightly.

The cylinder and the guide groove can be arranged on the bracket 12 or the frame 11. The bracket 12 is provided with a slide groove 12a for accommodating the first presser foot 13.

As shown in fig. 1 to 4 and 6, the second presser foot 14 is correspondingly connected to a power structure for driving the second presser foot 14 to swing; the second presser foot 14 comprises a second swing arm section 14b and a second presser foot section 14a installed on the second swing arm section 14b, an included angle between the second swing arm section 14b and the second presser foot section 14a is adjustable, and the force when the second presser foot 14 presses downwards can be adjusted. As shown in fig. 6, the cylinder rod extends outwards (i.e. in the direction Z1), the cylinder body rotates, and the left section of the second presser foot 14 swings downwards (i.e. in the direction Z1).

The power structure is generally that a cylinder or a hydraulic cylinder is used as power, and the amplitude for driving the second swing arm section 14b is generally maintained to be stable at a certain value; the included angle between the second swing arm section 14b and the second presser foot section 14a can be adjusted, and the force when the second presser foot 14 presses downwards can be adjusted. The second presser foot 14 is used for pre-pressing, and the pressing of the second presser foot 14 is not too tight; and/or the pressing force of the second presser foot 14 can be adjusted according to the thickness of the cloth.

As shown in fig. 1 to 4 and 6, the middle part of the second presser foot 14 is hinged with the bracket 12, and the second presser foot 14 is connected with a swing cylinder 16; the piston rod and the housing of the oscillating cylinder 16 are hinged, one to the second presser foot 14 and the other to the support 12.

As shown in fig. 1 to 4, in the sewing assembly 1, a material is generally held by a presser foot and a support plate 17, and the material is moved, so that a sewing needle works up and down. Namely, the sewing assembly 1, further includes a support plate 17. The sewing assembly 1 comprises a double-presser foot mechanism, a frame 11 and a supporting plate 17, wherein the double-presser foot mechanism is arranged on a sewing platform of the sewing assembly 1, and the middle part of a bracket 12 is hinged with the frame 11; the support 12 and the supporting plate 17 are connected with the same swing mechanism, and the swing mechanism drives the support 12 and the supporting plate 17 to swing and vibrate synchronously. The swing direction of the bracket 12 and the blade 17 is the W direction shown in fig. 1 and 5.

The sewing assembly can be applied to general sewing machines, looping sewing machines, tape folding sewing machines, seam folding sewing machines, pocket sewing machines and the like.

The swing mechanism comprises a cam piece and a motor connected with the cam piece, and the cam piece is connected with the bracket 12; the rotating cam piece drives the support 12 and the supporting plate 17 to vibrate in an oscillation amplitude, and the sewing needle works up and down. The support 12, the support plate 17 and the swing mechanism may be configured as follows: the swing mechanism comprises a swing piece, and the support 12 and the supporting plate 17 are connected to the swing piece. The support 12, the supporting plate 17 and the swing mechanism may also be arranged such that the swing mechanism is directly connected to the support 12 and/or the supporting plate 17, and the support 12 is fixedly connected to the supporting plate 17.

As shown in fig. 8, a tape folding machine includes a sewing assembly 1, and further includes a preparatory tape assembly 5, an ironing tape assembly 4, a tape feeding and cutting assembly 3, and an entrainment folding assembly 2; prepare material area subassembly 5, press area subassembly 4, send the area and cut area subassembly 3, smuggle secretly turn over a subassembly 2 and sew the subassembly 1 and set gradually along material area transmission direction. The tape transport direction is shown as V in fig. 8.

The straightening device comprises a material belt conveying device, a straightening assembly and a straightening mechanism, wherein the straightening assembly is arranged at the front end of the material belt conveying device along the material belt conveying direction and comprises a high rotating block and a plurality of straightening wheels, and the rotating block and the straightening wheels are sequentially arranged along a material conveying square; the rotating block is generally arranged as a square roller and is high and used for smoothing the material belt, avoiding knotting, reducing winding and the like, and the plurality of straightening wheels comprise an upper group and a lower group. Along the material belt transmission direction, the automatic feeding device also comprises a pre-feeding assembly arranged at the rear end of the belt conveying and cutting assembly 3. The material preparing assembly comprises a first feeding roller and a second feeding roller, and the first feeding roller rotates and straightens the material belt to be fed between the two groups of feeding rollers. The ironing belt component 4 comprises an ironing platform and a heating block, and the heating block can be lifted. The tape feeding and shearing assembly 3 comprises a tape pressing roller and a knife switch, and the tape feeding and shearing assembly 3 feeds the tape into the clamping jaw through the rotating tape pressing roller or other modes. The sewing component 1 comprises a double-presser foot mechanism, a sewing needle and a telescopic structure connected with the sewing needle.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.

Claims

1. A double-pressure-foot mechanism is characterized in that: the device comprises a support (12), a first presser foot (13) and a second presser foot (14), wherein the first presser foot (13) and the second presser foot (14) are respectively connected with corresponding power structures; the pressing end of the first presser foot (13) is C-shaped; the opening of the pressing end of the first presser foot (13) is used for accommodating the pressing end of the second presser foot (14) to move up and down.

2. A dual compression foot mechanism according to claim 1, wherein: the power structure is correspondingly connected with the first presser foot (13) and is used for driving the first presser foot (13) to swing; the first presser foot (13) comprises a first swing arm section and a first presser foot section arranged on the first swing arm section, and the included angle between the first swing arm section and the first presser foot section is adjustable.

3. A dual compression foot mechanism according to claim 1, wherein: and the power structure correspondingly connected with the first presser foot (13) is used for driving the first presser foot (13) to lift.

4. A dual compression foot mechanism according to claim 3, wherein: the power structure correspondingly connected with the first presser foot (13) comprises a crank arm (15a), and the middle part of the crank arm (15a) is hinged with the bracket (12); one end of the crank arm (15a) is connected with the first presser foot (13), and the other end is connected with a return spring (15c) and a power piece; and the power part and the return spring (15c), one is used for driving the first presser foot (13) to ascend, and the other is used for driving the first presser foot (13) to descend.

5. A dual compression foot mechanism according to claim 3 or 4, wherein: the bracket (12) is provided with a sliding groove (12a) for accommodating the first presser foot (13).

6. A dual compression foot mechanism according to any one of claims 1 to 4, wherein: the power structure is correspondingly connected with the second presser foot (14) and is used for driving the second presser foot (14) to swing; the second presser foot (14) comprises a second swing arm section (14b) and a second presser foot section (14a) arranged on the second swing arm section (14b), and the included angle between the second swing arm section (14b) and the second presser foot section (14a) is adjustable.

7. A dual compression foot mechanism according to claim 6, wherein: the middle part of the second presser foot (14) is hinged with the bracket (12), and the second presser foot (14) is connected with a swinging cylinder body (16); a piston rod and a shell of the swing cylinder body (16), one is hinged with the second presser foot (14), and the other is hinged with the bracket (12).

8. A sewing assembly characterized by: the double-pressure-foot mechanism comprises the double-pressure-foot mechanism of any one of claims 1 to 7, and further comprises a frame (11) and a supporting plate (17), wherein the double-pressure-foot mechanism is arranged on a sewing platform of the sewing assembly (1), and the middle part of the bracket (12) is hinged with the frame (11); the bracket (12) and the supporting plate (17) are connected with the same swing mechanism, and the swing mechanism drives the bracket (12) and the supporting plate (17) to swing and vibrate synchronously.

9. A belt folding machine is characterized in that: the sewing assembly comprises the sewing assembly of claim 8, and further comprises a preparation material belt assembly (5), an ironing belt assembly (4), a belt conveying and cutting assembly (3) and an entrainment folding assembly (2); the preparation material belt assembly (5), the ironing belt assembly (4), the belt conveying and shearing assembly (3), the clamping belt folding assembly (2) and the sewing assembly (1) are sequentially arranged along the material belt transmission direction.