CN214694599U - Sewing machine with rolling edge pressing function - Google Patents

Abstract

The application relates to a sewing machine of roll blank pressing belongs to sewing machine's technical field, and it includes: the novel cloth pressing machine comprises a machine body, stitches assembled at the output end of the machine body, and a presser bar assembled on the machine body and located on one side of the stitches, wherein a presser handle is assembled at the bottom end of the presser bar, a mounting seat is installed on the presser handle, a presser foot is connected to the bottom of the mounting seat, a plastic ring is arranged on the presser foot, the inner ring wall of the plastic ring is connected to the presser foot in a sliding and clamping mode through a transmission piece, and the outer ring wall of the plastic ring is in contact with cloth. This application can reduce the cloth and be advancing the frictional resistance of sewing in-process, improves the feeding speed of sewing to improve the work efficiency of sewing, and can reduce the cloth and move the too big and the condition emergence of card dun of frictional force, make the sewing process more smooth.

Description

Sewing machine with rolling edge pressing function

Technical Field

The application relates to the technical field of sewing machines, in particular to a sewing machine with a rolling edge pressing function.

Background

Sewing machines are machines which enable one or more layers of material to be interlaced or stitched, which enable the stitches to be distributed densely, the fastness of the stitching generally being superior to that of hand-sewing, and which enable the productivity to be greatly accelerated.

The presser foot is generally installed to stitch one side of sewing machine, makes the workman push into the stitch department when sewing, can be by the centre gripping of presser foot on the sewing machine board to better make the cloth sew up more stably.

In view of the related art in the above, the inventors consider that there are drawbacks in that: when a worker pushes the cloth into the presser foot, the sliding friction between the cloth and the presser foot can slow down the cloth feeding speed, and the friction acting force between the cloth with viscosity or elasticity and the presser foot is large, so that the cloth is easy to wrinkle or stretch, and the condition of unattractive sewing is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems mentioned in the background art, the application provides a sewing machine with a rolling pressing edge, which can reduce the frictional resistance of cloth in the process of advancing sewing and improve the feeding speed of sewing, thereby improving the working efficiency of sewing, and reducing the occurrence of the phenomenon that the cloth moves due to overlarge frictional force and is blocked, so that the sewing process is smoother.

The application provides a sewing machine of roll blank pressing adopts following technical scheme:

a rolling-lip sewing machine comprising: the cloth pressing machine comprises a machine body, stitches assembled at the output end of the machine body and a pressing foot rod assembled on the machine body and located on one side of the stitches, wherein a pressing foot handle is assembled at the bottom end of the pressing foot rod, an installation seat is installed on the pressing foot handle, a pressing foot is connected to the bottom of the installation seat, a plastic ring is arranged on the pressing foot, the inner ring wall of the plastic ring is connected to the pressing foot in a sliding and clamping mode through a transmission piece, and the outer ring wall of the plastic ring is in contact with cloth.

Through adopting above-mentioned technical scheme, when the cloth was by the propelling movement stitch, the presser foot pushes down and is held the cloth by the plastic ring centre gripping on the sewing machine board, along with the operator impels the cloth forward and sews up, the ring outer wall laminating cloth surface of plastic ring and follow the removal, and the ring inner wall of plastic ring then rolls through the driving medium and slides on the presser foot, thereby make the cloth can be held by the plastic ring pressure, improve sewing process's stability, and simultaneously, the plastic ring laminating cloth removes and follows the roll, can reduce the frictional force of cloth removal in-process, thereby the material feeding rate of cloth has been improved, sewing efficiency has been accelerated, greatly reduced because of the cloth removes the condition that the friction is too big and cause the sewing flaw.

Preferably, the transmission parts are arranged in a plurality of equidistant positions along the inner ring wall of the plastic ring, each transmission part is formed by connecting a sliding part and a clamping part, the sliding part is connected with the plastic ring, a sliding groove is horizontally formed in the bottom end of the presser foot in a penetrating mode, the sliding parts are connected with the sliding grooves in a sliding mode, the side walls of the sliding grooves are communicated and provided with clamping grooves, the penetrating direction of the clamping grooves is consistent with the penetrating direction of the sliding grooves, the clamping parts are connected with the sliding parts, the clamping parts are connected with the clamping grooves in a sliding mode in a matching mode, and the sliding grooves and the top walls of the clamping grooves are provided with guide surfaces.

Through adopting above-mentioned technical scheme, make the sliding part of driving medium and the sliding tray looks adaptation of presser foot slide and be connected, and the block portion of driving medium has restricted the plastics ring and has come off downwards, makes the driving medium can block in the presser foot for the plastics ring slides in sliding tray and block inslot from the spigot surface of presser foot one end through the driving medium, slides along the length direction in groove again and from the other end spigot surface roll-off of presser foot, thereby makes the plastics ring can roll ground on the presser foot and contact with the cloth.

Preferably, the sliding part both sides of driving medium are all adjacent from top to bottom the driving medium slope sets up, and is adjacent driving medium sliding part inclined plane bottom is connected.

Through adopting above-mentioned technical scheme, make adjacent driving medium bottom be connected, reduced the condition that the driving medium breaks away from the sliding tray and taken place, and the inclined plane of driving medium sliding part both sides has then improved the deformation elasticity of plastics ring, is favorable to the plastics ring to take place to recover better after deformation in business turn over presser foot bottom, has improved the roll smooth degree of plastics ring.

Preferably, the presser foot extends adjacent an end of the stitch to a position beyond the stitch.

Through adopting above-mentioned technical scheme, make the cloth all can be pressed by the presser foot and hold at the front and back end of stitch position department, improved the sewing stability of cloth to contact the stitch when can blockking operator's hand propelling movement cloth, security when having improved the sewing.

Preferably, two mutually connected pressure feet are symmetrically arranged at the bottom end of the mounting base, and a space for the stitch to pass through is reserved between the two pressure feet.

By adopting the technical scheme, when an operator sews the central part of the cloth, the two presser feet can be provided with the plastic rings, the pressing area of the cloth is increased, the sewing process of the cloth is more stable, in addition, the two sides of the stitch can be surrounded by the presser feet, and the sewing safety is further improved.

Preferably, the bottom end of the joint of the two presser feet is provided with a convex block, and the thickness of the convex block is consistent with that of the plastic ring.

Through adopting above-mentioned technical scheme, when installing single plastics ring in order to carry out the banding to the cloth and make, the lug of plastics ring one side can press the edge of cloth and hold, makes the difficult perk of edge of cloth to can make the process of making more smooth.

Preferably, the confession has been seted up to the bottom of presser foot handle the mounting groove that the mount pad card was gone into, the mount pad with the roof leaves the space in the mounting groove, presser foot handle bottom with the space is left to the presser foot, the presser foot handle is located threaded connection has same bolt on the position of the relative both sides of mounting groove, one side that the mount pad is close to the stitch is worn to locate by the bolt, the mount pad rotates to be connected on the presser foot handle, the standing groove has been seted up at the top of mount pad, the standing groove is located the bolt is kept away from one side of stitch, the end jade of standing groove is connected with the spring, the spring is kept away from the one end of standing groove with the mounting groove roof is connected.

Through adopting above-mentioned technical scheme, make the mount pad drive the presser foot and have certain rotation range on the presser foot handle, spring wherein is natural state when the presser bar rises, and the spring under the natural state can push down the mount pad to the one end that makes the presser foot be close to the stitch is lifted up, makes things convenient for putting into of cloth, and the presser bar pushes down back compression spring, makes the mount pad rotate and with the presser foot concora crush on the cloth sew.

Preferably, chamfers are arranged at the bottoms of the two ends of the presser foot.

Through adopting above-mentioned technical scheme, the driving medium of plastics ring slides when the sliding tray and the block groove of presser foot, and the interior rampart of plastics ring can slide along the chamfer of presser foot both ends bottom to the smooth degree when having improved the plastics ring and rolling.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the cloth can be pressed and held by the plastic ring when being sewn by arranging the presser foot and the plastic ring, so that the sewing stability is improved, meanwhile, the plastic ring can roll on the presser foot through the transmission piece, and the plastic ring is attached to the cloth and rolls along with the forward propulsion of the cloth, so that the friction force when the cloth moves is reduced, the feeding speed of an operator is improved, and the cloth sewing crease or stretching condition caused by the excessive moving friction of the cloth is reduced;

2. the mounting seat is rotatably connected to the presser foot handle, and is pressed downwards through the spring to rotate the mounting seat, so that the mounting seat drives the presser foot to be raised at the end close to the stitch, and cloth can enter conveniently.

Drawings

FIG. 1 is a schematic diagram of the overall structure in an embodiment of the present application;

FIG. 2 is a partial schematic structural view of an embodiment of the present application;

FIG. 3 is a partial schematic structural view of an embodiment of the present application;

FIG. 4 is an enlarged view A of FIG. 3;

fig. 5 is a schematic sectional view showing the installation of the presser foot and the plastic ring in the embodiment of the present application.

Description of reference numerals: 1. a body; 2. a stitch; 3. a presser bar; 31. a presser foot handle; 311. mounting grooves; 312. a bolt; 4. a mounting seat; 41. a placement groove; 42. a spring; 5. a presser foot; 51. a sliding groove; 52. a clamping groove; 53. a guide surface; 54. a bump; 55. chamfering; 6. a plastic ring; 61. a transmission member; 611. a sliding part; 612. an engaging portion.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a sewing machine for rolling and pressing edges.

Referring to fig. 1 and 2, the sewing machine with the rolling pressing edge comprises a machine body 1 and a stitch 2 assembled at the output end of the machine body 1, wherein a pressing foot rod 3 is further assembled on the machine body 1, the pressing foot rod 3 is located on one side, away from the operation position of a user, of the stitch 2, and a pressing foot 5 is installed on the pressing foot rod 3 and used for clamping a cloth on a sewing machine plate and facilitating stable sewing of the cloth.

Specifically, as shown in fig. 2, the bottom end threaded connection of presser bar 3 has presser foot handle 31, mounting groove 311 has been seted up to the bottom of presser foot handle 31, mount pad 4 is installed to the adaptation in mounting groove 311, the bottom of mount pad 4 is connected with two presser feet 5, two presser feet 5 are in the position interconnect of keeping away from stitch 2, and two presser feet 5 extend the setting in the one end that is close to stitch 2, make stitch 2 be located between two presser feet 5, when the operator sews cloth propelling movement to stitch 2 department, the cloth can be earlier by presser foot 5 pressfitting, furthermore, presser foot 5 extends to the position department that surpasss stitch 2, can prevent that the finger from being pricked by stitch 2 when the operator propelling movement is sewed, make the sewing process safer.

In order to make the cloth be more easily clamped by the presser foot 5, the specific installation mode of the installation seat 4 and the installation groove 311 refers to fig. 3 and fig. 4, the installation groove 311 is provided with threaded holes penetrating through two opposite side walls at the position close to the stitch 2, in addition, one side of the installation seat 4 close to the stitch 2 is correspondingly provided with a through hole, the through hole corresponds to the position of the threaded hole, the threaded holes at two sides of the installation groove 311 are connected with the same bolt 312 in a threaded manner, the bolt 312 penetrates through the through hole of the installation seat 4, meanwhile, a gap is reserved between the top end of the installation seat 4 at the moment and the inner wall of the installation groove 311, a gap is also reserved between the bottom end of the presser foot handle 31 and the top surface of the presser foot 5, and the installation seat 4 can be rotatably connected on the presser foot handle 31.

In addition, as shown in fig. 4, a placing groove 41 is opened on the top surface of the mounting seat 4 and at a position far from the stitch 2, a spring 42 is provided on the placing groove 41, one end of the spring 42 is connected with the bottom wall of the placing groove 41, and the other end is connected with the top wall of the mounting groove 311, when the spring 42 is in a natural state, one side of the mounting seat 4 far from the bolt 312 is abutted by the spring 42 and slightly tilted downward, so that the spring 42 can press the presser foot 5 when the presser bar 3 is lifted, one end of the presser foot 5 close to the stitch 2 is tilted, thereby facilitating the propulsion of the cloth, and when the presser bar 3 is pressed down, the spring 42 is compressed to make the bottom surface of the presser foot 5 adhere to the cloth to perform clamping sewing.

Because when the cloth impels presser foot 5, there is sliding friction between cloth and the presser foot 5, this kind of frictional force has slowed down the speed that the workman pushed the cloth, if the cloth surface has viscidity or elasticity, can further increase sliding friction power to reduce the smoothness nature of pay-off, probably can make the cloth card pause wrinkle or stretch out even, cause the condition of sewing flaw.

Therefore, the plastic rings 6 are mounted on both the presser feet 5, specifically, as shown in fig. 4 and 5, the bottom surface of the presser foot 5 is provided with a sliding groove 51, the sliding groove 51 extends in parallel with the length direction of the presser foot 5, and one side wall of the sliding groove 51 is provided with an engaging groove 52 in communication, the extending direction of the engaging groove 52 is parallel to the sliding groove 51, in addition, the plastic ring 6 is provided with a transmission member 61 for slidably engaging the plastic ring 6 with the presser foot 5, the transmission member 61 includes a sliding portion 611 and an engaging portion 612, wherein the sliding portion 611 is connected with the inner annular wall of the plastic ring 6, the sliding portion 611 is slidably connected with the sliding groove 51 in an adaptive manner, and the engaging portion 612 is connected with one side of the sliding portion 611, so that the engaging portion 612 is slidably engaged with the engaging groove 52, thereby the plastic ring 6 can be slidably engaged with the bottom of the presser foot 5.

As shown in fig. 4, the plurality of transmission members 61 are provided along the inner circumferential wall of the plastic ring 6, the sliding portions 611 of the transmission members 61 are inclined from the top end to the bottom end toward the adjacent transmission members 61 on both sides, and the bottom ends of the inclined surfaces of the sliding portions 611 are connected to the adjacent sliding portions 611, so that the plurality of transmission members 61 are connected in a circle on the inner circumferential wall of the plastic ring 6, and the adjacent transmission members 61 have an equidistant gap, and the guide surfaces 53 are provided on the top walls of the sliding groove 51 and the engaging groove 52 of the presser foot 5, so that the plastic ring 6 can slide in and out along the guide surfaces 53 from both ends of the presser foot 5, and the plastic ring 6 slides in and out in a rolling manner on the bottom of the presser foot 5 by deformation, and the plastic ring 6 is not easily separated from the tracks of the sliding groove 51 and the engaging groove 52, and rolls stably.

As shown in fig. 4, in order to improve the smoothness of rolling of the plastic ring 6, chamfers 55 are provided at the bottoms of the two ends of the plastic ring 6 that enter and exit the presser foot 5, so that when the plastic ring 6 rolls to the position of the presser foot 5, the plastic ring 6 can slide along the chamfers 55 of the presser foot 5, and thus the plastic ring 6 is smoother when entering and exiting the bottom of the presser foot 5.

When an operator installs the plastic ring 6, the plastic ring 6 can be upwards pushed and pressed at the bottom of the presser foot 5, the transmission piece 61 of the plastic ring 6 is installed in the sliding groove 51 and the clamping groove 52 of the presser foot 5 through self deformation clamping, according to the sewing position requirement of the cloth, the operator can select to install the plastic ring 6 on two presser feet 5 for sewing the middle position of the cloth, and when the cloth is sewn, only one plastic ring 6 can be installed, so that the visual field shielded by the plastic ring 6 is reduced.

When an operator installs a single plastic ring 6 for edge sewing, the bottom end of the presser foot 5 on one side of the plastic ring 6 is lower than the bottom end of the plastic ring 6, and no good clamping effect is provided for the edge of the cloth, therefore, in the embodiment, as shown in fig. 4 and 5, the connecting part of the bottoms of the two presser feet 5 is further provided with the convex block 54, the thickness of the convex block 54 is consistent with that of the plastic ring 6, so that the edge of the cloth can be pressed and held by the convex block 54, and the presser foot 5 and the plastic ring 6 can clamp and sew the cloth more closely.

The implementation principle of the sewing machine for rolling and pressing edges of the embodiment of the application is as follows:

when the operator with cloth propelling movement to presser foot 5, the surface of cloth is by the centre gripping that plastic ring 6 held, along with the cloth towards 2 direction propelling movements of stitch, plastic ring 6 follows the cloth and removes and roll on presser foot 5 for the upper surface of cloth pastes 6 bottom surfaces of plastic ring and moves forward, will be the contact sliding friction of cloth upper surface originally and turn into rolling friction, thereby reduced the frictional resistance of cloth propelling movement sewing in-process, the material feeding speed of workman's sewing has been improved, and reduced the cloth friction and wrinkled or tensile condition.

The above are all preferred embodiments of the present application, and the present embodiment is only explained for the present application, and the protection scope of the present application is not limited by this, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The sewing machine with the rolling edge pressing function comprises a machine body (1), a stitch (2) assembled at the output end of the machine body (1), and a foot pressing rod (3) assembled on the machine body (1) and located on one side of the stitch (2), and is characterized in that a foot pressing handle (31) is assembled at the bottom end of the foot pressing rod (3), an installation seat (4) is installed on the foot pressing handle (31), a pressing foot (5) is connected to the bottom of the installation seat (4), a plastic ring (6) is arranged on the pressing foot (5), the inner ring wall of the plastic ring (6) is in sliding clamping connection with the pressing foot (5) through a transmission piece (61), and the outer ring wall of the plastic ring (6) is in contact with cloth.

2. Rolling-blancher sewing machine according to claim 1, wherein the transmission members (61) are arranged equidistantly along the inner annular wall of the plastic ring (6), the transmission piece (61) is formed by connecting a sliding part (611) and an engaging part (612), the sliding part (611) is connected with the plastic ring (6), the bottom end of the presser foot (5) is horizontally provided with a sliding groove (51) in a penetrating way, the sliding part (611) is connected with the sliding groove (51) in a sliding way, the side wall of the sliding groove (51) is communicated with and provided with a clamping groove (52), the penetrating direction of the engaging groove (52) is the same as the penetrating direction of the sliding groove (51), the clamping part (612) is connected with the sliding part (611), the clamping part (612) is matched and slidably connected with the clamping groove (52), the top walls of the sliding groove (51) and the clamping groove (52) are provided with guide surfaces (53).

3. A roll hemming sewing machine according to claim 2, wherein the two sides of the sliding portion (611) of the driving member (61) are inclined from the top to the bottom toward the adjacent driving member (61), and the inclined surfaces of the sliding portions (611) of the adjacent driving members (61) are connected to each other at the bottom.

4. A roller hemming machine according to claim 1 wherein the presser foot (5) extends adjacent one end of the stitch (2) to a position beyond the stitch (2).

5. Sewing machine with rolling blankholder according to claim 4, characterized in that two presser feet (5) connected to each other are symmetrically arranged at the bottom end of the mounting seat (4), and a space for the stitch (2) to pass through is left between the two presser feet (5).

6. A roller hemming sewing machine according to claim 5 wherein the bottom end of the junction of the two presser feet (5) is provided with a projection (54), the projection (54) corresponding to the thickness of the plastic ring (6).

7. The sewing machine for rolling edges, according to claim 1, characterized in that the bottom end of the presser foot handle (31) is provided with a mounting groove (311) for the mounting seat (4) to be clamped in, a gap is left between the mounting seat (4) and the inner top wall of the mounting groove (311), a gap is left between the bottom end of the presser foot handle (31) and the presser foot (5), the same bolt (312) is connected to the portion of the presser foot handle (31) on the two opposite sides of the mounting groove (311) in a threaded manner, the bolt (312) is arranged on one side of the mounting seat (4) close to the needle foot (2), the mounting seat (4) is rotatably connected to the presser foot handle (31), the top of the mounting seat (4) is provided with a placing groove (41), the placing groove (41) is arranged on the side of the bolt (312) far away from the needle foot (2), the bottom wall of the placing groove (41) is connected with a spring (42), one end of the spring (42) far away from the placing groove (41) is connected with the top wall of the mounting groove (311).

8. A roller hemming sewing machine according to claim 1 wherein the presser foot (5) is provided with a chamfer (55) at the bottom of each end.

Images