CN109267248B

CN109267248B - Double-hemming sewing machine

Info

Publication number: CN109267248B
Application number: CN201811271336.6A
Authority: CN
Inventors: 屠昌平; 白欢欢
Original assignee: Zhejiang Haiming Industrial Co ltd
Current assignee: Zhejiang Haiming Industrial Co ltd
Priority date: 2018-10-29
Filing date: 2018-10-29
Publication date: 2023-12-12
Anticipated expiration: 2038-10-29
Also published as: CN109267248A

Abstract

The invention aims to solve the technical problem of providing a double-hemming sewing machine so as to improve the folding precision of cut pieces and reduce the labor intensity of operators. The double-hemming sewing machine comprises a bottom plate, wherein a regulator is arranged on the bottom plate, a pressing plate is further arranged on the bottom plate, the regulator comprises a lower plate fixed on the bottom plate and an upper plate connected to the lower plate in a sliding mode, and the pressing plate is connected to the bottom plate in a rotating mode. The regulator has two, forms the slot part between two regulators, and the clamp plate cooperates with the slot part. The cut-parts are laid on the groove parts, the pressing plates compress the cut-parts, then, the upper layer plates on the two regulators are pushed in sequence, the upper layer plates push the cut-parts, and the cut-parts can be folded when the upper layer plates push the cut-parts due to the fact that the cut-parts are positioned by the pressing plates. Compared with the prior art, the pressing plate positions the cut pieces, the cut pieces are folded by the two upper plates, the cut pieces are high in folding precision and folding speed, the labor intensity of operators is reduced, and the folding efficiency of the cut pieces is improved.

Description

Double-hemming sewing machine

Technical Field

The invention relates to a sewing machine accessory, in particular to a double-hemming sewing machine, and belongs to the field of sewing machines.

Background

The sewing machine is a device for sewing fabrics, and is widely applied to the production field of clothes. With the improvement of the living standard of people, the requirements on the appearance of the clothing are higher and higher, and various decorative cut pieces are more and more applied to the clothing.

When the cut pieces are sewn on the garment, various turnover needs to be carried out on the cut pieces so as to form more attractive stitching lines. For example, after a certain cut-part is turned over, one side of the cut-part may need to be turned over, the other side of the cut-part, that is, the side opposite to the side turned over earlier, is turned over again, and the fabric turned over later is lapped on the fabric turned over earlier, so that the cut-part forms a cylinder shape, and then the turned-over cut-part is sewn to form a more attractive cut-part.

In the prior art, when the folding mode is adopted for the cut pieces, the manual folding ironing and shaping method is adopted for folding, so that on one hand, the labor intensity of operators is increased, and on the other hand, the manual folding mode enables the folding precision of the cut pieces to be low, namely, the folding lines of the cut pieces can be offset or misplaced, and the follow-up sewing of the cut pieces is not facilitated.

Disclosure of Invention

The invention aims to solve the technical problem of providing a double-hemming sewing machine so as to improve the folding precision of cut pieces and reduce the labor intensity of operators.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a double hemming sewing device comprising a base plate;

a regulator disposed on the base plate;

and a pressing plate disposed on the bottom plate;

the two regulators are provided with a groove part, and a pressing plate is positioned in the groove part;

the regulator comprises a lower layer plate fixed on the bottom plate and an upper layer plate connected on the lower layer plate in a sliding way;

the pressing plate is rotatably connected to the bottom plate.

The double-hemming sewing machine comprises a bottom plate, wherein a regulator is arranged on the bottom plate, a pressing plate is further arranged on the bottom plate, the regulator comprises a lower plate fixed on the bottom plate and an upper plate connected to the lower plate in a sliding mode, and the pressing plate is connected to the bottom plate in a rotating mode. The regulator has two, forms the slot part between two regulators, and the clamp plate cooperates with the slot part. The cut-parts are laid on the groove parts, the pressing plates compress the cut-parts, then, the upper layer plates on the two regulators are pushed in sequence, the upper layer plates push the cut-parts, and the cut-parts can be folded when the upper layer plates push the cut-parts due to the fact that the cut-parts are positioned by the pressing plates. Compared with the prior art, the pressing plate positions the cut pieces, the cut pieces are folded by the two upper plates, the cut pieces are high in folding precision and folding speed, the labor intensity of operators is reduced, and the folding efficiency of the cut pieces is improved.

Preferably, the lower layer plate is fixed on the bottom plate through a screw, an adjusting hole matched with the screw is formed in the lower layer plate, and the adjusting hole is in a strip shape.

The adjusting holes are in a strip shape, so that the relative position of the lower layer plate relative to the bottom plate can be adjusted, the width of the groove part or the folding position of the cut pieces can be adjusted, and the performance of the double-hemming sewing machine is optimized.

Preferably, a sliding column is arranged on the lower layer plate, and the upper layer plate is sleeved on the sliding column.

The slide column plays a role in guiding the upper layer plate, and the upper layer plate has higher displacement precision due to the arrangement of the slide column, so that the folding precision of the cut pieces is improved.

Preferably, the lower layer plate is further provided with a limiting column limiting the sliding distance of the upper layer plate, the upper layer plate is provided with a limiting groove matched with the limiting column, and the limiting groove is in a strip shape.

The limiting column and the limiting groove mainly play a role in limiting the limiting position of the upper layer plate, so that the upper layer plate is prevented from being separated from the sliding column due to the fact that the upper layer plate moves too far, and the stability of the double-hemming sewing machine is improved.

Preferably, the pressing plate is rotatably connected to the bottom plate through a base, a rotating shaft is rotatably connected to the base, the pressing plate is fixed to the rotating shaft, and a handle convenient for operating the pressing plate to turn over is further arranged on the pressing plate.

The arrangement of the rotating shaft enables the pressing plate to rotate flexibly.

The arrangement of the handle enables the pressing plate to turn over conveniently, and the operability of the double-hemming sewing machine is optimized.

Preferably, the base is fixed on the bottom plate through a screw, an assembly groove matched with the screw is formed in the base, and the assembly groove is in a strip shape.

The position of the seat body can be adjusted, so that the position of the pressing plate relative to the groove part can be adjusted, and the double-hemming sewing machine has better universality.

Preferably, a pushing groove is arranged on the upper layer plate, and the pushing groove is in a strip shape.

The pushing groove facilitates pushing out the cut pieces. The needle-shaped rod piece is matched with the pushing groove, so that the cut piece can be conveniently pushed out of the double-hemming sewing machine, and the operation performance of the double-hemming sewing machine is optimized.

Preferably, scale marks are arranged on the pressing plate, the scale marks are recessed into the pressing plate, and a paint layer is coated in the scale marks.

The arrangement of the scale marks enables operators to conveniently adjust the positions of the cut pieces when the cut pieces are placed, and the accuracy of the double-hemming sewing machine is improved.

The arrangement of the paint layer is convenient for operators to observe, and the performance of the pressing plate is optimized.

Preferably, the upper layer plates are provided with folded edges which are convenient for pushing the upper layer plates.

The arrangement of the folded edge enables the upper layer plate to be convenient to operate, and operators can conveniently move the position of the upper layer plate by utilizing the folded edge.

Preferably, a driver for driving the upper layer plate to move is further arranged on the lower layer plate, and the double-hemming sewing device further comprises a controller for controlling the driver to work.

The driver and the controller enable the upper layer plate to automatically move, and labor intensity of operators is reduced.

Compared with the prior art, the invention has the following advantages and effects:

1. the pressing plate and the upper plate can be arranged to conveniently turn over the cut pieces.

2. The setting of clamp plate is mainly used to the location cut-parts, and the cut-parts have higher turning over precision, have optimized the performance of two turn-ups sewing machine.

3. The arrangement of the handle enables the pressing plate to be convenient to operate, and labor intensity of operators is reduced.

4. The arrangement of the scale marks is beneficial for operators to adjust the position of the cutting piece relative to the pressing plate, and the operability of the double-hemming sewing machine is improved.

5. The arrangement of the folded edge ensures that the upper layer plate is convenient to operate, and reduces the labor intensity of operators.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used 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 invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a partial schematic view of the present invention.

Fig. 3 is a schematic view of the present invention after folding the cut-parts.

Description of the reference numerals:

1. the device comprises a bottom plate, 2, a regulator, 3, a pressing plate, 4, a groove part, 5, a lower plate, 6, an upper plate, 7, an adjusting hole, 8, a sliding column, 9, a limit column, 10, a limit groove, 11, a seat body, 12, a rotating shaft, 13, a handle, 14, an assembly groove, 15, a pushing groove, 16, scale marks, 17, a folded edge, 18, a connecting plate, 19, a lug, 20, a supporting lug, 100 and a cutting piece.

Detailed Description

The present invention will be described in further detail with reference to the following examples, which are illustrative of the present invention and are not intended to limit the present invention thereto.

Example 1

As shown in fig. 1 and 2, the double-hemming sewing machine is used for turning over the cut piece 100 to form the cut piece 100 into a cylindrical shape, so that subsequent sewing is facilitated, and comprises a bottom plate 1;

a regulator 2 provided on the base plate 1;

and a pressing plate 3 provided on the bottom plate 1;

two regulators 2 are arranged, a groove part 4 is formed between the two regulators 2, and the pressing plate 3 is positioned in the groove part 4;

the regulator 2 comprises a lower plate 5 fixed on the bottom plate 1 and an upper plate 6 connected on the lower plate 5 in a sliding way;

the pressing plate 3 is rotatably connected to the bottom plate 1.

The using method of the scheme comprises the following steps:

assume that:

the shape of the cut-parts 100 is square, the turned edges 17 of the cut-parts 100 are edges A and B, the edges A and B are opposite, and the fabric turned by the edge B is lapped on the fabric turned by the edge A and the turned edge 17.

As shown in fig. 3, the folding of the cut pieces 100 includes the following operations:

s1: rotating the pressing plate 3 to disengage the pressing plate 3 from the groove 4;

s2: the cutting piece 100 is laid on the groove part 4 and covers the groove part 4, the pressing plate 3 is turned over, the pressing plate 3 presses the cutting piece 100, and at the moment, the width of the side A of the cutting piece 100 relative to the pressing plate 3 is smaller than the width of the side B relative to the pressing plate 3;

s3: pushing one upper layer plate 6 to fold the side A of the cut piece 100, and overlapping part of the cut piece 100 on the pressing plate 3 after folding the side A;

s4: the other upper plate 6 is pushed to fold the B side of the cut piece 100, and after the B side is folded, a part of the cut piece 100 is overlapped on a part of the cut piece 100 after the A side is folded and covers the pressing plate 3. At this time, the cut piece 100 is folded into a cylindrical shape, and the folded cut piece 100 can be subjected to a corresponding sewing operation.

Based on the use method, in order to make the double-hemming sewing machine have better universality, a plurality of groups of regulators 2 and pressing plates 3 matched with the bottom plate 1 can be provided under the condition that the bottom plate 1 is unchanged.

The plurality of groups of regulators 2 and pressing plates 3 matched with the bottom plate 1 refer to regulators 2 and pressing plates 3 with different sizes.

The different sized adjusters 2 refer to several upper and lower plates 6, 5 having different sizes. For example, when the thickness of the cut segment 100 is increased, the lower plate 5 having a larger thickness should be used to avoid interference with the pressing plate 3 when the upper plate 6 is moved.

The main function of the lower layer plate 5 is to support the upper layer plate 6 and form a groove 4, so that the upper layer plate 6 is staggered with the pressing plate 3, interference with the pressing plate 3 when the upper layer plate 6 moves is avoided, a part of the cut piece 100 is folded, and the folded part of the cut piece 100 is overlapped on the pressing plate 3.

In use, the double hemming sewing machine has only one set of the regulator 2, the press plate 3 and the base plate 1 assembled to fold over the cut pieces 100 of one gauge.

The bottom plate 1, the regulator 2 and the pressing plate 3 can be made of metal materials or other materials, and the manufacturing materials of the double-hemming sewing machine are not limited. However, there should be no burrs on the parts of the double-hemming sewing machine to avoid the double-hemming sewing machine from scratching the cut piece 100.

Compared with the prior art, the cutting piece 100 is positioned by the pressing plate 3, the folding is realized by the upper plate 6, the folding precision of the cutting piece 100 is high, the folding efficiency is high, and the labor intensity of operators is reduced.

Example 2

This embodiment describes the manner in which the lower plate 5 is fixed to the base plate 1 in combination with embodiment 1.

As shown in fig. 1 and 2, the lower plate 5 is fixed on the bottom plate 1 by a screw, and an adjusting hole 7 matched with the screw is arranged on the lower plate 5, and the adjusting hole 7 is in a strip shape.

Screw holes matched with the screws are formed in the bottom plate 1, and the screw heads of the screws compress and position the lower plate 5 on the bottom plate 1 when the lower plate 5 is positioned. The adjusting holes 7 are in a strip shape, and the position of the lower layer plate 5 relative to the bottom plate 1 can be adjusted by loosening the screws. The position of the lower plate 5 is changed to change the width of the groove 4, so that the double-hemming sewing machine can adapt to more specifications of cut pieces 100.

The adjustment holes 7 mainly function to adjust the position of the lower plate 5 with respect to the bottom plate 1, and therefore, the adjustment holes 7 should be provided along the width direction of the groove portion 4.

Example 3

This embodiment describes the manner of assembling the upper plate 6 and the lower plate 5 in combination with embodiment 1 or embodiment 2.

As shown in fig. 1 and 2, a strut 8 is disposed on the lower plate 5, and the upper plate 6 is sleeved on the strut 8.

The spool 8 may be secured to the lower plate 5 by a compression tab.

Because the thickness of the upper plate 6 may be thinner, the sleeving of the upper plate 6 on the strut 8 may mean that the lugs 20 forming the sliding holes are arranged on the upper plate 6, and the lugs 20 may be welded on the upper plate 6, or the lugs 20 may be fixed on the upper plate 6 through detachable connection. The slide hole on the support lug 20 is matched with the slide column 8.

The slide posts 8 serve to guide the upper plate 6 so that the upper plate 6 has high displacement accuracy.

When the thickness of the upper layer plate 6 and the lower layer plate 5 meets the requirement, the slide column 8 can also be replaced by a guide rail, and the guide rail can be arranged on the upper layer plate 6 or the lower layer plate 5, for example, the guide rail and the lower layer plate 5 are in an integrated structure, and a guide groove matched with the guide rail is arranged on the upper layer plate 6.

When the guide rail is used instead of the strut 8, it is necessary to provide a guide groove on a structure that cooperates with the guide rail, and this structure is required to have a large thickness.

The spool 8 may be replaced with other structures having a guiding function. The present invention is not limited thereto, and those skilled in the art can appropriately set the present invention as required. For example, the guide rails may be used instead when the thickness dimension of the upper and lower plates 6, 5 is large.

Example 4

The present embodiment can be combined with any of the above embodiments, and is an optimization of the above technical solution.

As shown in fig. 1 and 2, the lower plate 5 is further provided with a limiting post 9 for limiting the sliding distance of the upper plate 6, the upper plate 6 is provided with a limiting groove 10 matched with the limiting post 9, and the limiting groove 10 is in a strip shape.

The limit post 9 passes through the limit groove 10, and when the upper plate 6 moves to the limit position, the limit post 9 contacts one end of the limit post groove, so that the limit function is realized.

The limit posts 9 may also be disposed on the upper plate 6, and the limit grooves 10 are disposed on the lower plate 5.

The connection manner of the limit post 9 and the upper plate 6 or the lower plate 5 is not particularly limited. For example, the limit posts 9 are welded to the upper plate 6 or the lower plate 5, or the limit posts 9 are screwed to the upper plate 6 or the lower plate 5.

The specific forms of the limiting posts 9 and the limiting grooves 10 are not limited, for example, the shape of the limiting posts 9 may be a protrusion or the like.

Example 5

This embodiment describes the manner of assembling the platen 3 in combination with any of the above embodiments.

As shown in fig. 1 and 2, the pressing plate 3 is rotatably connected to the bottom plate 1 through a base 11, a rotating shaft 12 is rotatably connected to the base 11, the pressing plate 3 is fixed to the rotating shaft 12, and a handle 13 that is convenient for operating the pressing plate 3 to turn over is further disposed on the pressing plate 3.

The handle 13 can be welded on the rotating shaft 12, the pressing plate 3 can also be fixed on the rotating shaft 12 through screws, at the moment, the connecting plate 18 can be welded on the rotating shaft 12, the pressing plate 3 is fixed on the rotating shaft 12 through the connecting plate 18, and the pressing plate 3 and the connecting plate 18 are fixed through screws.

The pressing plate 3 and the rotating shaft 12 are detachably connected and assembled, the pressing plate 3 can be conveniently replaced, and the double-hemming sewing machine is convenient to maintain.

The base 11 may include a seat plate, on which a lug 19 may be disposed, and on which a shaft hole is provided to be fitted with the rotation shaft 12, and the lug 19 may be fastened to the seat plate by a screw.

Rolling bearings may be disposed between the shaft 12 and the shaft hole to flexibly rotate the shaft 12.

The specific form of the base 11 is not limited, that is, the assembly mode of the rotating shaft 12 is not limited, and a person skilled in the art can arbitrarily select to realize the rotation of the rotating shaft 12 relative to the base plate 1.

Example 6

This embodiment, in combination with embodiment 5, is an optimization scheme for embodiment 5.

As shown in fig. 1 and 2, the base 11 is fixed on the base plate 1 by a screw, and an assembly groove 14 matched with the screw is provided on the base 11, and the assembly groove 14 is in a strip shape.

Screw holes matched with the screws are arranged on the bottom plate 1.

The screw passes through the assembly groove 14 to be matched with the screw hole on the bottom plate 1, and the nail head of the screw presses the seat body 11 and positions the seat body 11.

The assembly groove 14 is long, the position of the seat 11 relative to the bottom plate 1 can be adjusted by loosening the screw, and at this time, the position of the pressing plate 3 relative to the groove 4 can be adjusted. This adjustment may change the relative position of hem 17 of panel 100 on panel 100 to provide a double-hemming stapler with better performance.

The manner of assembling the base 11 and the base plate 1 is not particularly limited. For example, the mounting grooves 14 may be circular, and the mounting grooves 14 are uniformly distributed on the base 11, and in this case, the position of the base 11 relative to the base plate 1 may be adjusted by engaging the screws with the different mounting grooves 14.

The present solution mainly enables the position of the base 11 relative to the base plate 1 to be adjustable, and a person skilled in the art may also select other fixing solutions, so that the position of the base 11 relative to the base plate 1 can be adjusted.

Example 7

The present embodiment may be combined with any one of the above embodiments, and is an optimization scheme for the above technical solution.

As shown in fig. 1, a pushing groove 15 is provided on the upper plate 6, and the pushing groove 15 is in a strip shape.

Referring to the description of the method of using the double hemming sewing machine in embodiment 1, the provision of the pressing plate 3 will have a positioning function for the cut piece 100. After the cut piece 100 is positioned by the pressing plate 3, there may be a large resistance to moving the cut piece 100 out of the double hemming sewing machine. At this time, a needle-shaped structure can be adopted to extend into the pushing groove 15 to stir the cut piece 100, so that the cut piece 100 can be easily moved out of the double-hemming sewing machine.

A pushing groove 15 may be provided on both upper plates 6, or the pushing groove 15 may be provided on one of the upper plates 6.

The pushing groove 15 should be long-strip-shaped, and the pushing groove 15 may be disposed along the length direction of the platen 3.

The pushing grooves 15 can also be arranged in a plurality, and the pushing grooves 15 on the same upper plate 6 are all arranged along the length direction of the pushing plate, so that the pushing grooves 15 on the same upper plate 6 form a structure with longer length, and the cutting piece 100 can be moved out of the double-hemming sewing machine by matching with the needle-shaped rod. Needle-like rods are elongate rods.

The specific form of the pushing tank 15 is not limited, and can be set appropriately as required by those skilled in the art.

Example 8

This embodiment can be combined with any of the above embodiments to introduce an optimization scheme of the platen 3.

As shown in fig. 1 and 2, graduation marks 16 are arranged on the pressing plate 3, the graduation marks 16 are recessed into the pressing plate 3, and a paint layer is coated in the graduation marks 16.

The graduation marks 16 may also protrude from the pressing plate 3, in which case, since the graduation marks 16 protrude from the pressing plate 3, the graduation marks 16 are easily worn on the one hand, and the graduation marks 16 may scratch the cut piece 100 on the other hand. In a specific design, the scale marks 16 can be reasonably selected from the concave pressing plate 3 or the convex pressing plate 3 according to the material of the cut piece 100.

The provision of the graduation marks 16 facilitates the operator in adjusting the position of the cut-parts 100 relative to the press plate 3 for higher folding accuracy.

Example 9

The present embodiment may be combined with any of the above embodiments, and is an optimization scheme for the above scheme.

As shown in fig. 1 and 2, folds 17 are provided on the upper plate 6 to facilitate pushing of the upper plate 6.

The provision of the flaps 17 will facilitate the movement of the upper panel 6 by the operator.

The flange 17 may be formed integrally with the upper plate 6, and the flange 17 may be provided on the upper plate 6 by welding or detachable connection, for example, the flange 17 may be fixed to the upper plate 6 by screws.

An elastic layer may be wrapped over the flap 17 to optimize the handling properties of the flap 17.

A pattern may be provided on the elastic layer to optimize the handling of the flap 17.

In order to reduce the weight of the double hemming sewing machine, a weight reducing groove may be provided on the hem 17, for example, holes or grooves may be uniformly distributed on the hem 17.

Example 10

This embodiment describes a scheme in which the upper plate 6 can be automatically moved in order to reduce the labor intensity of the operator, in combination with embodiment 1.

A driver for driving the upper plate 6 to move is also arranged on the lower plate 5, not shown in the figure, and the double hemming sewing device also comprises a controller for controlling the operation of the driver, not shown in the figure.

The driver outputs a linear motion to drive the upper plate 6 to reciprocate. The actuator may be an electric, pneumatic or hydraulic cylinder, or other mechanism that can output linear motion. The present invention is not particularly limited herein.

Considering the volume and the working condition of the double-hemming sewing machine, the driver can adopt an electric cylinder to simplify the structure of the double-hemming sewing machine, so that the interference between the cut piece 100 and the double-hemming sewing machine caused by the excessively complex structure of the double-hemming sewing machine is avoided.

The electric cylinder comprises a cylinder body and a driving rod for outputting linear reciprocating motion, and the cylinder body is fixedly connected with the lower layer plate 5, for example, by adopting screw connection and the like. The drive rod is fixedly connected to the upper plate 6, for example by a screw connection or the like.

The electric cylinder works to enable the driving rod to output linear reciprocating motion, and further drives the upper layer plate 6 to move, so that the function of folding the cut pieces 100 is achieved.

The controller may be fixed on the base plate 1, for example, the controller is fixed on the base plate 1 by using screws, and because the two upper plates 6 move in sequence, the controller should have a certain logic processing capability or a certain delay capability, so that the upper plates 6 acquire the function of acting in sequence. The controller can be a single chip microcomputer and the like.

The electric cylinder and the controller are both powered by a power supply. The power supply can be fixed on the bottom plate 1, the power supply can also be fixed on the sewing machine, and the power supply is electrically connected with the electric cylinder and the controller by adopting leads.

The travel of the drive rod may be controlled by a travel switch in communication with the controller. The stroke of the drive rod may also be controlled by a controller, for example, the controller controlling the amount of pulsed current delivered by the power supply to the electric cylinders to control the stroke of the drive rod. The stroke limiting mode of the driving rod is not particularly limited, and can be reasonably selected by a person skilled in the art according to requirements.

When the rigidity of the driver is low, that is, when the driver drives the upper plate 6 to complete the folding operation of the cut-parts 100, the position of the upper plate 6 may be offset, the proposal can be combined with embodiment 3, that is, the slide column 8 is arranged, so that the upper plate 6 obtains more accurate moving precision.

Example 11

This embodiment can explain the shape of the lower plate 5 in combination with embodiment 5.

A relief notch for accommodating the seat 11 is provided on one of the lower plates 5.

Alternatively, a relief notch for accommodating the seat 11 may be provided on both lower plates 5.

The setting of the yielding gap mainly enables the seat body 11 to have a larger adjusting range. That is, the bottom panel 1 may have a small area so that the double hemming sewing machine has a small volume, and the structure thereof is more compact, and at this time, the two lower panels 5 can limit the adjustment range of the seat 11.

When the area of the bottom plate 1 is not limited, the relief notch may not be provided.

Example 12

The present embodiment may be combined with any of the above embodiments, and is an optimization scheme for the above embodiment.

The base plate 1 is provided with mounting holes which are long-strip-shaped.

The installation hole is mainly used for enabling the bottom plate 1 to be convenient to assemble with a sewing machine, and the installation hole is long-strip-shaped so that the position of the bottom plate 1 relative to the sewing machine can be adjusted. To optimize the performance of the double seam sewing machine.

It may be necessary to provide a needle-letting groove or the like on the base plate 1, that is, the base plate 1 should be provided with a needle-letting groove to avoid the needle of the sewing machine interfering with the base plate 1. The specific shape of the bottom plate 1 is adaptively changed according to the working form of the sewing machine, and will not be described herein.

In addition, the specific embodiments described in the present specification may differ in terms of parts, shapes of components, names, and the like. All equivalent or simple changes of the structure, characteristics and principle according to the inventive concept are included in the protection scope of the present invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The double-hemming sewing machine is characterized in that: comprises a bottom plate (1);

a regulator (2) provided on the base plate (1);

and a pressing plate (3) arranged on the bottom plate (1);

two regulators (2) are arranged, a groove part (4) is formed between the two regulators (2), and the pressing plate (3) is positioned in the groove part (4);

the regulator (2) comprises a lower layer plate (5) fixed on the bottom plate (1) and an upper layer plate (6) connected on the lower layer plate (5) in a sliding manner;

the pressing plate (3) is rotationally connected to the bottom plate (1);

the lower layer plate (5) is fixed on the bottom plate (1) through a screw, an adjusting hole (7) matched with the screw is formed in the lower layer plate (5), and the adjusting hole (7) is in a strip shape;

a sliding column (8) is arranged on the lower layer plate (5), and the upper layer plate (6) is sleeved on the sliding column (8);

a limiting column (9) for limiting the sliding distance of the upper layer plate (6) is further arranged on the lower layer plate (5), a limiting groove (10) matched with the limiting column (9) is formed in the upper layer plate (6), and the limiting groove (10) is in a strip shape;

and folded edges (17) which are convenient for pushing the upper layer plate (6) are arranged on the upper layer plate (6).

2. The double-hemming sewing machine of claim 1 wherein: the pressing plate (3) is rotationally connected to the bottom plate (1) through the base body (11), a rotating shaft (12) is rotationally connected to the base body (11), the pressing plate (3) is fixed to the rotating shaft (12), and a handle (13) which is convenient for operating the pressing plate (3) to turn over is further arranged on the pressing plate (3).

3. The double-hemming sewing machine of claim 2 wherein: the base body (11) is fixed on the bottom plate (1) through a screw, an assembly groove (14) matched with the screw is formed in the base body (11), and the assembly groove (14) is in a strip shape.

4. The double-hemming sewing machine of claim 1 wherein: a pushing groove (15) is arranged on the upper layer plate (6), and the pushing groove (15) is in a strip shape.

5. The double-hemming sewing machine of claim 1 wherein: a scale mark (16) is arranged on the pressing plate (3), the scale mark (16) is recessed into the pressing plate (3), and a paint layer is coated in the scale mark (16).

6. The double-hemming sewing machine of claim 1 wherein: the lower layer plate (5) is also provided with a driver for driving the upper layer plate (6) to move, and the double-hemming sewing machine also comprises a controller for controlling the driver to work.