CN219385565U - Rubber band sewing device and sewing machine with same - Google Patents

Abstract

The utility model discloses an elastic sewing device and a sewing machine with the same. The adjusting part is adjusted to enable the resistance plate to move, the size of the gap in the axial direction of the installation through hole can be adjusted, the gap is reduced on the basis that the rubber band is guaranteed to be introduced, the friction resistance between the rubber band and the resistance plate is increased, and the rubber band is stretched after being subjected to the friction resistance. The fixed adjusting part does not move, the resistance plate keeps the position, the size of the gap is not changed, the friction resistance of the rubber band is not changed, and the rubber band keeps the stretching state. From this, the rubber band sewing device of this application can be with the rubber band tensile to appointed length to make the tensile length of rubber band keep invariable, need not the manual work and continuously stretch the rubber band, labour saving and time saving improves the work efficiency that the rubber band was sewed to clothing surface fabric, improves the uniformity that the clothing goods takes place to shrink under the effect of rubber band, improves the quality of clothing goods.

Description

Rubber band sewing device and sewing machine with same

Technical Field

The utility model relates to the technical field of auxiliary sewing tools, in particular to an elastic sewing device and a sewing machine with the same.

Background

At present, in the sewing process of the garment overlapping rubber band, the conventional sewing method is to place the rubber band below the garment material, and a sewing worker stretches the rubber band below the garment material to stretch the rubber band so as to have a certain elasticity, and sews the rubber band above the garment material to stitch the rubber band to the garment material. After the sewing is completed, the sewing worker removes the pulling force applied to the rubber band, and the rubber band gradually recovers the length, so that the garment fabric is shrunk to a certain extent. However, by adopting the above sewing mode, a sewing worker is required to continuously stretch the rubber band in the sewing process so as to control the stretching length of the rubber band to be kept constant, which is time-consuming and labor-consuming, causes lower sewing efficiency, and is high in sewing difficulty and inconvenient to sew. In addition, because the length of the elastic stretching is mainly determined by experience of the sewing workers, in actual production, the different experience of different sewing workers also has different lengths of the manually stretched elastic, and some sewing workers stretch too much to enable the elastic to relax and fold too much, while other sewing workers stretch not enough to enable the elastic to relax and fold loose, so that the shape, the size and the specification of the shrinkage sewn on the garment are difficult to unify, and the quality of the garment is affected.

Disclosure of Invention

The embodiment of the utility model discloses an elastic sewing device and a sewing machine with the same, wherein the elastic sewing device can continuously stretch an elastic band to a certain length without manually continuously controlling the stretch of the elastic band, so that time and labor are saved, the manufacturing efficiency of sewing the elastic band on a garment fabric is improved, the wrinkled shape of the garment is uniform, and the garment quality is improved.

In order to achieve the above object, in a first aspect, the present utility model discloses an elastic sewing device applied to a sewing machine, the elastic sewing device comprising:

a fixing member for fixing to the sewing machine;

the first pull cylinder is connected to the fixed part and provided with a first through channel;

the second pull cylinder is connected with the first pull cylinder at an angle, and is provided with a second through channel and a mounting through hole, wherein the second through channel is communicated with the first through channel, and the mounting through hole is communicated with the second through channel;

the resistance plate is arranged in the second channel in a penetrating way and forms a gap with the inner surface of the second channel, the gap is used for the rubber band to pass through, and the first channel is used for the rubber band to pass through; and

the adjusting part is movably arranged in the mounting through hole in a penetrating mode, one end of the adjusting part is located in the second channel and connected with the resistance plate, and the adjusting part can move relative to the mounting through hole to drive the resistance plate to move, so that the size of the gap in the axis direction of the mounting through hole is adjusted.

As an alternative implementation manner, in an embodiment of the present utility model, the mounting through hole is a threaded hole, the adjusting component includes a head and a screw connected to the head, the head is located outside the mounting through hole, a radial diameter of the head is greater than a radial diameter of the screw, the screw is disposed through the mounting through hole, and one end of the screw is located in the second channel and connected to the resistance plate, so that when the head is rotated, the screw can move relative to the mounting through hole along an axial direction of the mounting through hole.

In an alternative embodiment of the present utility model, the second channel has an inlet for the rubber string to pass through the gap, one end of the resistance plate is connected to a side of the second pull cylinder near the inlet, the other end of the resistance plate is suspended and passes through the second channel, the inner surface of the second channel has a bottom surface along the axis direction of the mounting through hole, and the resistance plate and the bottom surface form the gap.

As an alternative implementation manner, in an embodiment of the present utility model, the second pull cylinder includes an extension portion and a pull cylinder body, the pull cylinder body is connected with the first pull cylinder at an angle, the pull cylinder body has the second channel and the mounting through hole, the extension portion is connected with the pull cylinder body and is located outside the second channel and the inlet, the extension portion is provided with a first fixing hole, and the one end of the resistance plate is detachably connected with the first fixing hole through a first fastener.

As an optional implementation manner, in an embodiment of the present utility model, the first pull cylinder includes a bottom plate, a first limiting component, a second limiting component, and a cover plate, where the first limiting component and the second limiting component are detachably connected between the bottom plate and the cover plate, and the first limiting component, the second limiting component, the bottom plate, and the cover plate are connected in a surrounding manner to form the first channel, the bottom plate is connected to the fixing component, and the bottom plate is connected to the second pull cylinder at an angle.

In an alternative embodiment of the present utility model, the bottom plate is a bending plate, the bottom plate includes a first portion and a second portion that are connected at an angle, the first limiting member and the second limiting member are detachably connected between the second portion and the cover plate, respectively, and the second portion is connected to the second pull tube and the second portion is connected to the fixing member, so as to form the first channel between the second portion and the first limiting member, between the second limiting member and the cover plate.

As an alternative embodiment, in an embodiment of the present utility model, the first channel has an outlet for passing out the elastic thread passing out through the gap, the elastic thread sewing device further includes a third limiting member, the first pull cylinder is provided with a protruding portion located outside the first channel and the outlet, the third limiting member is connected to the protruding portion, and the third limiting member has a limiting channel communicating with the outlet, the limiting channel is used for passing through the elastic thread passing out through the outlet, and the limiting channel is used for limiting a movement direction of the elastic thread passing out through the outlet.

As an alternative embodiment, in an embodiment of the present utility model, the first pull cylinder is provided with an adjustment through hole, and the adjustment through hole is communicated with the first channel.

As an alternative embodiment, in an embodiment of the present utility model, the fixing member is provided with a bar-shaped through hole, and the sewing machine is provided with a second fixing hole, and the bar-shaped through hole is connected with the second fixing hole through a second fastener.

In a second aspect, the present utility model also discloses a sewing machine, comprising:

a sewing machine main body; and

the elastic sewing device according to the first aspect, wherein the fixing member of the elastic sewing device is fixed to the sewing machine body.

Compared with the prior art, the utility model has the beneficial effects that:

the rubber band sewing device comprises a first pull cylinder, a second pull cylinder, a resistance plate and an adjusting component, wherein the rubber band is led into a gap formed by the resistance plate and the inner surface of a second channel, and the adjusting component is adjusted to enable the resistance plate to move, so that the size of the gap in the axial direction of a through hole can be adjusted, the gap is reduced on the basis of ensuring that the rubber band can be led in, the friction resistance between the rubber band and the resistance plate is increased, and the rubber band is stretched after being subjected to the friction resistance. In order to control the stretching length of the rubber band, after the rubber band is stretched, the fixed adjusting part does not move, the resistance plate continuously keeps the position of the rubber band, the size of the gap is not changed, the friction resistance applied to the rubber band by the resistance plate is unchanged, and the rubber band can continuously keep the stretched state. From this, the rubber band sewing device of this application can be with the rubber band tensile to appointed length to make the tensile length of rubber band keep invariable, need not the manual work and continuously stretch the rubber band, labour saving and time saving improves the work efficiency that the rubber band was sewed to clothing surface fabric, improves the uniformity that the clothing goods takes place to shrink under the effect of rubber band, improves the quality of clothing goods.

In addition, because the length of the rubber band after being stretched is further lengthened, the whole length of the rubber band sewing device is longer to ensure the introduction of the elongated rubber band, however, the table top space of the sewing machine is limited, and in order to facilitate an operator to use the rubber band sewing device, the second pull cylinder is arranged outside the sewing machine table when the device is used. If the second pull cylinder arranged outside the sewing machine table is kept in a horizontal state, the end of the rubber band which is not fed temporarily is dropped downwards by self gravity, the other end of the rubber band can be kept horizontal in the process of feeding the rubber band into the second pull cylinder, the end of the rubber band which is not fed temporarily and the fed end of the rubber band can form a right angle close to 90 degrees, the moving directions of the end of the rubber band which is not fed temporarily and the fed end are inconsistent, and the joint of the two ends can be subjected to resistance applied by the edge of the second pull cylinder, so that the rubber band can be prevented from entering the second channel. And set up first pull cylinder and second pull cylinder into angled connection, the one end that the second pulled cylinder lets in the rubber band is down, and the both direction of removal of the end that lets in of rubber band keeps unanimous with not letting in, and the rubber band receives the resistance of second pull cylinder edge department to reduce, and the rubber band of being more convenient for lets in the second passageway.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a rubber band sewing device according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a second pull cup according to an embodiment of the present utility model;

FIG. 3 is a schematic top view of a second pull cup disclosed in an embodiment of the present utility model;

FIG. 4 is a schematic view of a first pull cup according to an embodiment of the present utility model;

fig. 5 is a schematic top view of a first pull cup disclosed in an embodiment of the utility model.

Icon: 100. an elastic sewing device; 10. an elastic band; 1. a first pull cylinder; 11. a first channel; 11a, an outlet; 12. a bottom plate; 121. a first portion; 122. a second portion; 13. a first limiting member; 14. a second limiting member; 15. a cover plate; 16. a protruding portion; 17. a third limit member; 171. a limiting channel; 18. adjusting the through hole; 2. a second pull cylinder; 21. a second channel; 21a, an inlet; 22. an extension; 221. a first fixing hole; 23. a pull cylinder main body; 3. a fixing member; 31. a bar-shaped through hole; 32. a second fastener; 4. a resistance plate; 41. a gap; 42. a first fastener; 5. an adjusting member; 51. a head; 52. and (3) a screw.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.

The stretched rubber band sewn on the garment fabric can enable the garment fabric to form a certain degree of shrinkage, and the practicality and the appearance decoration of a garment finished product can be improved. The traditional rubber band sewing method mainly comprises the steps of pressing the clothing fabric on the rubber band, manually pulling the rubber band below the clothing fabric by a sewing worker, applying a relatively constant pulling force to the rubber band to enable the rubber band to keep a required stretching state, and then controlling a sewing machine to sew the rubber band and the clothing fabric from the upper side of the clothing fabric, so that the rubber band is sewn on the clothing fabric. However, the stretching state of the rubber band is manually controlled by a sewing worker, so that on one hand, the sewing worker needs to continuously control the direction of the rubber band which is fed into the sewing machine for sewing, and meanwhile, the reaction force of the rubber band for recovering the deformation of the rubber band needs to be overcome, and the stretching length of the rubber band is kept by continuously controlling the rubber band by hands, so that time and labor are wasted, and the sewing efficiency is influenced; on the other hand, different sewing workers have different sewing experiences and different judgment, different stretching forces are applied to the rubber strings, the stretching lengths of the rubber strings are different, some sewing workers stretch the rubber strings too much, the elastic strings on the garment fabric are loosened and the folding amount of the garment finished product is too large, some sewing workers stretch the rubber strings too little, the elastic strings on the garment fabric are loosened and the folding amount of the garment finished product is smaller, the folding of the garment finished product is not obvious, and the folding shape, the size and the specification of the finally sewn garment are difficult to unify, so that the uniformity and the quality of the garment finished product are affected.

Based on this, this application provides an elastic sewing device, through adjusting this elastic sewing device, can stretch the elastic that lets in the device to appointed length and maintain the tensile state of elastic, need not the manual work and continuously pull the elastic and hold the elastic after the continuous control extension, labour saving and time saving, can promote and sew up efficiency, simultaneously after guaranteeing the unified tensile length of elastic, the volume of rolling up after the elastic on the garment materials is relaxed also can be unified, can promote the uniformity of the shrink shape, size and specification of garment materials, further can promote the quality of garment materials.

The technical scheme of the utility model will be further described with reference to the examples and the accompanying drawings.

Referring to fig. 1 to 5 together, an embodiment of the present utility model provides an elastic sewing device 100, where the elastic sewing device 100 is applied to a sewing machine and can stretch an elastic thread 10 to a certain length and maintain the state, and further a sewing worker can sew the stretched elastic thread 10 to a garment fabric by using the elastic sewing device 100.

Referring to fig. 1, 2 and 4, the rubber band sewing device includes: the sewing machine comprises a first pull cylinder 1, a second pull cylinder 2, a fixing part 3, a resistance plate 4 and an adjusting part 5, wherein the fixing part 3 is used for being fixed on the sewing machine, the first pull cylinder 1 is connected with the fixing part 3, and the first pull cylinder 1 is provided with a first channel 11 which is communicated; the second pull cylinder 2 is connected with the first pull cylinder 1 at an angle, the second pull cylinder 2 is provided with a second through passage 21 and a mounting through hole, the second through passage 21 is communicated with the first through passage 11, and the mounting through hole is communicated with the second through passage 21; the resistance plate 4 is arranged in the second channel 21 in a penetrating way and forms a gap 41 with the inner surface of the second channel 21, the gap 41 is used for the rubber string 10 to pass through, and the first channel 11 is used for the rubber string 10 which passes through the gap 41; the adjusting part 5 movably penetrates through the mounting through hole, one end of the adjusting part 5 is located in the second channel 21 and connected with the resistance plate 4, and the adjusting part 5 can move relative to the mounting through hole to drive the resistance plate 4 to move, so that the size of the gap 41 in the axis direction of the mounting through hole is adjusted.

The moving direction of the elastic thread 10 in the elastic thread sewing device 100 is designated as a-B direction, and the axial direction of the installation hole is designated as C-D direction. It will be appreciated that by providing the regulating member 5 and the resistance plate 4, and the regulating member 5 can move up and down with respect to the through hole in the axial direction of the installation through hole, and further drive the resistance plate 4 to move up and down, the size of the gap 41 in the axial direction of the through hole can be changed. The gap 41 can be reduced on the basis of ensuring that the rubber string 10 is introduced when the resistance plate 4 moves, the gap 41 can be reduced on the basis of the original introduction of the rubber string 10, the resistance plate 4 compresses the rubber string 10, the friction resistance between the rubber string 10 and the resistance plate 4 is increased, and the rubber string 10 is stretched after being subjected to the friction resistance. In order to control the stretching length of the elastic band 10, after the elastic band 10 is stretched, the adjusting part 5 does not move in the installation through hole, the resistance plate 4 keeps the position of the adjusting part in the second channel 21, the size of the gap 41 is not changed, the friction resistance applied by the resistance plate 4 to the elastic band 10 is not changed, and the elastic band 10 can keep the stretched state continuously. From this, the rubber band sewing device 100 of this application can stretch rubber band 10 to appointed length to make the tensile length of rubber band 10 keep invariable, need not the manual work and continuously stretch and draw the rubber band, labour saving and time saving improves the work efficiency that the rubber band was sewed up to clothing surface fabric, improves the uniformity that the clothing goods takes place the shrink under the effect of rubber band, improves the quality of clothing goods.

Further, since the length of the stretched elastic ribbon 10 is further lengthened, the elastic ribbon sewing device 100 needs to be longer in its entire length in order to ensure the introduction of the stretched elastic ribbon 10, however, the table space of the sewing machine is limited, and in order to facilitate the use of the elastic ribbon sewing device 100 by an operator, the second pull cylinder 2 is disposed outside the sewing machine. If the second pull cylinder 2 is horizontally disposed outside the sewing machine table, and if the second pull cylinder 2 disposed outside the sewing machine table is kept in a horizontal state, the end of the elastic ribbon 10 which is not yet fed is dropped downward by its own weight, the other end of the elastic ribbon 10 is kept horizontal during feeding of the second pull cylinder 2, the end of the elastic ribbon 10 which is not yet fed and the fed end form a right angle close to 90 °, the moving directions of the end which is not yet fed and the fed end are inconsistent, and the junction of the two is subjected to the resistance applied by the edge of the second pull cylinder 2, so that the elastic ribbon 10 is prevented from entering the gap 41 of the second channel 21. The first pull cylinder 1 and the second pull cylinder 2 are connected in an angle, one end of the second pull cylinder 2, which is led into the rubber band 10, faces downwards, the moving directions of the leading-in end and the non-leading-in end of the rubber band 10 are kept consistent, the resistance of the rubber band 10 at the edge of the second pull cylinder 2 is reduced, and the rubber band 10 is led into the second channel 21 more conveniently.

The application provides an elastic sewing device 100, its application method is: the rubber band sewing device 100 is fixed on a sewing machine through the fixing part 3, rubber band 10 is introduced into the gap 41 of the second pull cylinder 2, the adjusting part 5 is adjusted, the resistance plate 4 moves, the size of the gap 41 is changed, the resistance plate 4 applies certain friction resistance to the rubber band 10 in the gap 41, the rubber band 10 is stretched in the process of passing through the gap 41 after being subjected to the friction resistance, and the stretched rubber band 10 enters the first channel 11 of the first pull cylinder 1 and is introduced out and is sewn on clothing fabric placed above the first pull cylinder 1, so that the sewing of the rubber band 10 is completed.

The application is fixed rubber band sewing device 100 on the sewing machine through fixed part 3, in order to be convenient for adjust rubber band sewing device 100 for sewing machine's position, in some embodiments fixed part 3 is equipped with bar through-hole 31, and sewing machine is equipped with the second fixed orifices, and bar through-hole 31 passes through second fastener 32 and is connected with the second fixed orifices. Since the bar-shaped through hole 31 has a certain length, when different positions of the bar-shaped through hole 31 are provided corresponding to the second fixing hole, the position of the elastic sewing device 100 at the sewing machine is changed, thereby realizing the adjustment of the position of the elastic sewing device 100 at the sewing apparatus. Specifically, when the position of the socket molding device 100 needs to be adjusted in the O direction as shown in fig. 1, the second fastening member 32 is unscrewed, and at this time, the fixing member 3 can be moved to the target position in the O direction as shown in fig. 1, and then the second fastening member 32 is tightened again, so that the second fastening member 32 is connected with the second fixing hole, thereby achieving the adjustment of the rubber band sewing device 100 at the sewing machine position. Alternatively, the second fastener may be a screw, screw or the like fastener.

The structure of an elastic sewing device 100 provided in the present application will be described in the order in which the elastic threads 10 are introduced:

first, the structure of the second pull cup 2 will be described:

referring to fig. 2 and 3, the rubber string 10 is provided with a serpentine rod on a side of the second pull tube 2 close to the inlet 21a, and the serpentine rod extends along a side facing away from the second pull tube 2. The serpentine rod is provided to facilitate the passage of the rubber band into the gap 41 of the second channel 21.

Optionally, one end of the adjusting component 5 may be provided with a plurality of first fastening portions arranged up and down, and the inner surface of the mounting through hole is provided with a second fastening portion fastened with the first fastening portion, so that when the adjusting component 5 moves to different first fastening portions and second fastening portions along the axis direction of the mounting through hole, the position of the resistance plate 4 in the second channel 21 can be changed to adjust the size of the gap 41 in the axis direction of the mounting through hole, wherein one of the first fastening portion and the second fastening portion is a fastening, and the other is a fastening slot. Alternatively, in some embodiments, the mounting through hole is a threaded hole, the adjusting member 5 includes a head 51 and a screw 52 connected to the head 51, the head 51 is located outside the mounting through hole, the radial diameter of the head 51 is larger than the radial diameter of the screw 52, the screw 52 is disposed through the mounting through hole, and one end of the screw 52 is located in the second passage 21 to be connected to the resistance plate 4, so that the screw 52 can move relative to the mounting through hole in the axial direction of the mounting through hole when the head 51 is rotated. Preferably, the screw 52 is arranged to be matched with the threaded hole, so that the screw 52 can be conveniently screwed in the mounting through hole only by screwing the head 51, and the threaded surface on the screw 52 can be matched with the mounting through hole, so that the adjusting part 5 can stay at the position. Compared with the first mode, can be convenient for adjust adjusting part 5 for adjusting part 5 drives resistance board 4 reciprocates more sensitively, and adjusting part 5 is better with the connection stability of installation through-hole, is difficult for droing. In addition, the installation through hole and the screw 52 are provided with thread surfaces at the same time, and compared with the matching of the single thread surface and the plane, the contact resistance of the two thread surfaces is smaller, so that the screw 52 can be conveniently screwed into the installation through hole. Further, the radial diameter of the head portion 51 of the regulating member 5 is larger than the radial diameter of the screw 52, and the head portion 51 can provide a sufficient holding area for a sewing worker to hold the regulating member 5.

Alternatively, the inner surface of the second passage 21 has a top surface and a bottom surface in the axial direction of the mounting through hole, and the resistance plate 4 and the regulating member 5 are provided in two ways, but are not limited to: first, the installation through-hole is offered in the bottom surface of second pull cylinder 2, and adjusting part 5 wears to establish in the installation through-hole of bottom surface, and after the top of resistance board 4 and adjusting part was connected, resistance board 4 and the top surface of second pull cylinder 2 formed clearance 41, and the rubber band lets in clearance 41 from the one side that is close to the top surface of second passageway 21 top this moment. The adjusting part 5 is moved upwards, and then the resistance plate 4 is driven to move close to one side of the top surface, so that the size of the gap 41 can be reduced, the friction resistance of the resistance plate 4 to the rubber band above the resistance plate is increased, and the rubber band is elongated after being subjected to the friction resistance. Second, the installation through-hole is offered at the top surface of second pull rod 2, and adjusting part 5 wears to establish in the installation through-hole of top surface, and after the bottom of resistance board 4 and adjusting part 5 was connected, resistance board 4 and the bottom surface of second pull rod 2 formed clearance 41. At this time, the adjusting member 5 is moved downward, and then drives the resistance plate 4 to move closer to the bottom surface, so that the size of the gap 41 can be reduced, the friction resistance of the resistance plate 4 to the rubber band 10 below the resistance plate is increased, and the rubber band 10 is stretched after being subjected to the friction resistance. Preferably, the second type of the resistance plate 4 and the bottom surface of the second pull can 2 form a gap 41, and it is understood that the elastic band 10 can be subjected to the second pull can 2 and the supporting force provided by the bottom surface of the first pull can 1 in the second type, and can be balanced with the gravity of the elastic band 10 itself, so that the elastic band 10 can only receive frictional resistance in the horizontal direction, and can further maintain its stretched form. Compared with the first mode, the elastic band 10 is suspended in the process of being led out from the second pull cylinder 2 to the first pull cylinder 1, the elastic band 10 has a downward movement trend due to gravity, the elastic band 10 is not beneficial to maintaining the stretching length in the left-right movement direction, and the stretched elastic band is not beneficial to accurately entering the first channel 11 after being led out from the second channel 21.

Further, on the basis of the manner that the second resistance plate 4 forms a gap 41 with the bottom surface of the second pull cylinder 2, the resistance plate 4 and the second pull cylinder 2 are connected by two manners, but not limited to: the first connection mode is as follows: the top surface at second pull cylinder 2 is offered to the installation through-hole, and adjusting part 5 wears to establish in the installation through-hole of top surface, and the intermediate position of resistance board 4 is connected in adjusting part 5's bottom, and the unsettled neither with adjusting part 5 of both ends of resistance board 4 is connected, also is not connected with second pull cylinder 2. The second connection mode is as follows: in some embodiments, the second channel 21 has an inlet 21a for the rubber string to pass through the gap 41, one end of the resistance plate 4 is connected to one side of the second pull drum 21 near the inlet 21a, and the other end of the resistance plate 4 is suspended and inserted into the second channel 21. Preferably, the second connection mode is adopted, compared with the connection mode of suspending two ends of the resistance plate 4, the connection mode of suspending one end of the resistance plate 4 with the second pull drum 21 is adopted, and the other end of the resistance plate is not connected in a suspending manner, when the adjusting part 5 moves downwards, the downward pressure applied to the resistance plate 4 by the adjusting part 5 is concentrated on one suspended end of the resistance plate 4, the suspended one end of the resistance plate 4 moves downwards after being stressed, larger friction resistance is applied to the rubber band 10 passing through the gap 41, and phenomena such as slipping and shifting are not easy to occur in the process of passing through the gap 41 of the rubber band 10.

Alternatively, the one end of the resistance plate 4 is connected to the side of the second pull drum 21 near the inlet 21a in two ways, but not limited to: first, one end of the resistance plate 4 is welded to one side of the second pull drum 21 near the inlet 21 a; second, in some embodiments, the second pull tube 2 includes an extension 22 and a pull tube body 23, the pull tube body 23 is connected with the first pull tube 1 at an angle, the pull tube body 23 has a second channel 21 and a through hole, the extension 22 is connected with the pull tube body 23 and is located outside the second channel 21 and the inlet 21a, the extension 22 is provided with a first fixing hole 221, and one end of the resistance plate 4 is detachably connected with the first fixing hole 221 through a first fastener. Alternatively, the first fastener may be a screw, bolt, screw or the like fastening member. Preferably, the second mode of fixing the resistance plate 4 on the pull cylinder main body 23 through the first fastener and the first fixing hole 221 is adopted, compared with the connection mode of directly welding the resistance plate 4 on the pull cylinder main body 23, the resistance plate 4 can be conveniently disassembled and assembled, the resistance plates with different sizes are suitable for rubber strings with different elasticity and different widths, and the applicability of the rubber string sewing device 100 can be increased.

In addition, the present embodiment is not particularly limited to the fastening direction of the first fastener, and the fastening direction of the first fastener may be upward or downward. The length of the resistance plate 4 is not particularly limited, and can be specifically selected according to the degree of difficulty in deformation of the elastic ribbon 10, the greater the elasticity of the elastic ribbon 10 is, the easier the deformation thereof is, the shorter the resistance plate 4 can be provided, the smaller the elasticity of the elastic ribbon 10 is, the harder the deformation thereof is, and the longer the resistance plate 4 can be provided. Preferably, the other end of the resistance plate 4 may be aligned with the outlet 21a of the second channel 21, so that the elastic 10 may be maintained in a stretched state by the resistance from the resistance plate 4 when passing out of the second channel 21, and the stretched shape of the elastic 10 may be more stable.

Next, the structure of the first pull can 1 will be described:

referring to fig. 4 and fig. 5 together, in some embodiments, the first pull tube 1 includes a bottom plate 12, a first limiting member 13, a second limiting member 14, and a cover plate 15, the first limiting member 13 and the second limiting member 14 are detachably connected between the bottom plate 12 and the cover plate 15, the first limiting member 13, the second limiting member 14, the bottom plate 12, and the cover plate 15 are connected to form a first channel 11, the bottom plate 12 is connected to the fixing member 3, and the bottom plate 12 is connected to the second pull tube 2 at an angle. The first pull cylinder 1 in this application scheme is detachable connection, compares in an integral type non-detachable pull cylinder, and the first pull cylinder 1 in this scheme can be according to the width state after the stretching of rubber 10 and change first spacing part 13 and second spacing part 14 to form the removal position of the first passageway 11 of different width be convenient for the rubber band 10 lets in and restrict rubber band 10.

Alternatively, the first limiting member 13 and the second limiting member 14 may be a limiting member such as a sponge strip, a sand paper strip, or the like, which is not particularly limited in this embodiment. By additionally providing the first limiting member 13 and the second limiting member 14, the first limiting member 13 and the second limiting member 14 are separately provided and connected at the left and right sides of the bottom plate 12 and the cover plate 15, which are consistent with the state that the stretched elastic band 10 is introduced into the first channel 11, so that the stretched state of the elastic band 10 can be maintained.

Further, the first and second limiting members 13 and 14 may be connected between the bottom plate 12 or the cover plate 15 by double-sided tape, velcro, or the like. The first limiting component 13 and the second limiting component 14 can be replaced according to the width of the stretched rubber band 10, when the stretched rubber band 10 has a certain width, the first limiting component 13 and the second limiting component 14 with narrower widths can be arranged, so that the clamping parts in the middle of the first limiting component 13 and the second limiting component 14 can form a wider first channel 11, and the rubber band 10 with wider width can be conveniently introduced. When the elastic band 10 is narrower in width after being stretched, the first limiting member 13 and the second limiting member 14 having wider widths may be provided, so that the middle clamping portions of the first limiting member 13 and the second limiting member 14 can form the narrower first channel 11 to accommodate the elastic band 10 having narrower width.

Further, in some embodiments, the bottom plate 12 is a bent plate, the bottom plate 12 includes a first portion 121 and a second portion 122 connected at an angle, the second portion 122 is detachably connected to the first limiting member 13, the second limiting member 13 and the cover plate 15 to form the first channel 11, the first portion 121 is connected to the second pull tube 2, and the second portion 122 is connected to the fixing member 3. Through addding first part 121 for bottom plate 12 and second draw a section of thick bamboo 2's connection area is bigger, compares in the mode that first draw a section of thick bamboo 1 edge and second draw a section of thick bamboo 2 edge lug connection, addding first part 121 can connect more firm, and difficult rupture.

Optionally, the cover plate is a transparent PVC plate, a PET plate or a PC plate. The PVC sheet, PET sheet or PC sheet is transparent so as to facilitate observation of the stretched state of the elastic band 10 introduced into the first passage 11.

In some embodiments, the first channel 11 has an outlet 11a, the outlet 11a is used for passing out the elastic ribbon 10 passing out through the gap 41, the elastic ribbon sewing device 100 further includes a third limiting member 17, the first pull cylinder 1 is provided with a protrusion 16 located outside the first channel 11 and the outlet 11a, the third limiting member 17 is connected to the protrusion 16, and the third limiting member 17 has a limiting channel 171 in communication with the outlet 11a, the limiting channel 171 is used for passing through the elastic ribbon 10 passing out through the outlet 11a, and the limiting channel 171 is used for limiting the movement direction of the elastic ribbon 10 passing out through the outlet 11 a. Since the stretched elastic 10 passing through the outlet 11a is directly sewn with the garment fabric, in order to ensure that the stretched elastic 10 still maintains the original stretched state and the position is not changed during sewing, the outlet 11a is provided with the third limiting component 17 with the width consistent with the width of the elastic 10, so that the stretched elastic 10 can be just clamped, and the stretched elastic 10 can be prevented from moving.

In some embodiments, the first pull cylinder 1 is provided with an adjusting through hole 18, the adjusting through hole 18 is communicated with the first channel 11, and the adjusting through hole 18 is formed so that a sewing worker can conveniently adjust the position of the rubber band 10 by using an external tool. The number of the adjustment through holes 18 is not particularly limited in this embodiment, and since the length of the first pull can 1 is long, two or more adjustment through holes 18 may be preferably provided.

Further, the embodiment of the application also provides a sewing machine, which comprises a sewing machine main body and the rubber band sewing device 100, wherein the fixing part 3 of the rubber band sewing device 100 is fixed on the sewing machine, so that the rubber band can be sewn on the clothing fabric.

The above describes in detail an elastic sewing device and a sewing machine with the same disclosed in the embodiments of the present utility model, and specific examples are applied to illustrate the principles and embodiments of the present utility model, and the above description of the embodiments is only for helping to understand the core ideas of an elastic sewing device and a sewing machine with the same of the present utility model: meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the idea of the present utility model, the present disclosure should not be construed as limiting the present utility model in summary.

Claims (10)

1. The utility model provides an elastic sewing device, is applied to on the sewing machine, its characterized in that, elastic sewing device includes:

a fixing member for fixing to the sewing machine;

the first pull cylinder is connected to the fixed part and provided with a first through channel;

the second pull cylinder is connected with the first pull cylinder at an angle, and is provided with a second through channel and a mounting through hole, wherein the second through channel is communicated with the first through channel, and the mounting through hole is communicated with the second through channel;

the resistance plate is arranged in the second channel in a penetrating way and forms a gap with the inner surface of the second channel, the gap is used for the rubber band to pass through, and the first channel is used for the rubber band to pass through; and

the adjusting part is movably arranged in the mounting through hole in a penetrating mode, one end of the adjusting part is located in the second channel and connected with the resistance plate, and the adjusting part can move relative to the mounting through hole to drive the resistance plate to move, so that the size of the gap in the axis direction of the mounting through hole is adjusted.

2. The elastic sewing apparatus according to claim 1, wherein the installation through hole is a screw hole, the adjusting member includes a head portion and a screw connected to the head portion, the head portion is located outside the installation through hole, a radial diameter of the head portion is larger than a radial diameter of the screw, the screw is provided through the installation through hole, and one end of the screw is located in the second passage and connected to the resistance plate, so that the screw can move relative to the installation through hole in an axial direction of the installation through hole when the head portion is rotated.

3. The elastic sewing apparatus according to claim 1, wherein the second passage has an inlet for the elastic thread to pass through the gap, one end of the resistance plate is connected to a side of the second pull cylinder near the inlet, the other end of the resistance plate is suspended to pass through the second passage, an inner surface of the second passage has a bottom surface along an axial direction of the mounting through hole, and the resistance plate and the bottom surface form the gap.

4. A rubber band sewing apparatus as in claim 3 wherein the second pull tube comprises an extension and a pull tube body, the pull tube body being angularly connected to the first pull tube, the pull tube body having the second passage and the mounting through hole, the extension being connected to the pull tube body and located outside the second passage and the inlet, the extension being provided with a first securing hole, the one end of the resistance plate being detachably connected to the first securing hole by a first fastener.

5. The elastic sewing device of claim 1, wherein the first pull tube comprises a bottom plate, a first limiting member, a second limiting member and a cover plate, the first limiting member and the second limiting member are detachably connected between the bottom plate and the cover plate, the first limiting member, the second limiting member, the bottom plate and the cover plate are connected in a surrounding manner to form the first channel, the bottom plate is connected to the fixing member, and the bottom plate is connected to the second pull tube in an angle.

6. The elastic sewing apparatus of claim 5, wherein the bottom plate is a bending plate, the bottom plate includes a first portion and a second portion connected at an angle, the first and second limiting members are detachably connected between the second portion and the cover plate, respectively, the second portion forms the first channel with the first and second limiting members and the cover plate, the first portion is connected to the second pull tube, and the second portion is connected to the fixing member.

7. The elastic sewing apparatus according to claim 1, wherein the first passage has an outlet for letting out the elastic that is let out via the gap, further comprising a third limiting member, the first pull cylinder being provided with a projection located outside the first passage and the outlet, the third limiting member being connected to the projection, and the third limiting member having a limiting passage communicating with the outlet, the limiting passage being for letting in the elastic that is let out via the outlet, the limiting passage being for limiting a movement direction of the elastic that is let out via the outlet.

8. The elastic sewing apparatus of any of claims 1-7, wherein the first pull cylinder is provided with an adjustment through hole, the adjustment through hole being in communication with the first passage.

9. The elastic sewing apparatus of any of claims 1-7, wherein the securing member is provided with a bar-shaped through hole, the sewing machine is provided with a second securing hole, and the bar-shaped through hole is connected to the second securing hole by a second fastener.

10. A sewing machine, comprising:

a sewing machine main body; and

an elastic sewing device, wherein the elastic sewing device is as claimed in any one of claims 1 to 9, and the fixing member of the elastic sewing device is fixed to the sewing machine body.