CN113529289A - Magnetic-attraction synchronous type sewing machine feeding mechanism and using method thereof - Google Patents
Magnetic-attraction synchronous type sewing machine feeding mechanism and using method thereof Download PDFInfo
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- CN113529289A CN113529289A CN202110602833.5A CN202110602833A CN113529289A CN 113529289 A CN113529289 A CN 113529289A CN 202110602833 A CN202110602833 A CN 202110602833A CN 113529289 A CN113529289 A CN 113529289A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 29
- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000004744 fabric Substances 0.000 claims abstract description 120
- 238000003825 pressing Methods 0.000 claims abstract description 57
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- 239000011425 bamboo Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000009499 grossing Methods 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 4
- 238000004904 shortening Methods 0.000 claims description 4
- 230000037303 wrinkles Effects 0.000 claims description 3
- 210000002421 cell wall Anatomy 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 20
- 230000007547 defect Effects 0.000 abstract description 5
- 230000003031 feeding effect Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 11
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/06—Presser feet
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/06—Presser feet
- D05B29/10—Presser feet with rollers
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/12—Presser-foot attachment
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- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a magnetic-guiding synchronous feeding mechanism of a sewing machine and a use method thereof, belonging to the field of sewing machines, wherein an elastically connected pressure plate is arranged below a pressure foot body, a magnetic feed dog is used for attracting the pressure plate to press cloth, when the feed dog moves forwards, the pressure plate is enabled to synchronously push the cloth forwards along with the feed dog by utilizing the magnetic attraction effect, the occurrence of dislocation of the upper layer and the lower layer of smooth cloth is effectively reduced, meanwhile, a roller feeding cylinder on the pressure plate reduces the contact area of the cloth and the pressure plate, the friction resistance of the upper layer of cloth is reduced, and when the feed dog feeds forwards, the roller feeding cylinder is driven to roll on the upper layer of cloth to play a role of pushing the cloth forwards, thereby effectively improving the synchronous feeding effect, in addition, the magnetic attraction effect enables the elastic pressure plate to further press the cloth downwards to compensate the defect of insufficient pressing force, and the elastic connecting rod can limit the excessive pressing of the elastic pressing plate, so that the pressing force is prevented from being too large.
Description
Technical Field
The invention relates to the field of sewing machines, in particular to a magnetic-attraction synchronous type sewing machine feeding mechanism and a using method thereof.
Background
A sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a material to be sewn, thereby interweaving or stitching one or more layers of material. The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastic, paper and the like, and the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient. And derives the artistic forms of hand-push embroidery, computer embroidery, etc. The general sewing machine is composed of four parts of a machine head, a machine base, a transmission part and an accessory, wherein the machine head is the main part of the sewing machine. It is composed of four mechanisms of needling material, hooking thread, picking thread and feeding material and auxiliary mechanisms of winding, pressing material and falling tooth, etc. the movements of all the mechanisms are reasonably matched, and can be circularly worked to sew up the sewing material
The feeding structure of the sewing machine mainly comprises a presser foot and a feed dog, wherein the feed dog mainly moves from back to front, sinks to the back when moving to the forefront and then moves from the back to the front. The main movable rail is moved back and forth, and the up and down movement is only a process of repeating after the cycle is finished. When the sewing machine sews, the cut pieces are clamped between the upper part and the lower part of the presser foot and the cloth feeding tooth, the presser foot is provided with a presser foot rod with a spring to tightly press the cut pieces down, the cloth feeding tooth continuously advances from back, and the cut pieces are synchronously fed forward.
Most of the existing feeding mechanisms have defects, for example, when multi-layer cloth is sewn, the problem of wrinkling of the sewn cloth, particularly the smooth cloth, is caused by the fact that the upper layer and the lower layer of the cloth are staggered due to improper pressure of a presser foot and loosening of a feed dog, and the sewing quality is greatly reduced.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a magnetic-guiding synchronous feeding mechanism of a sewing machine and a using method thereof, wherein an elastically connected pressure plate is arranged below the existing presser foot body, a magnetic feed dog is used for attracting the pressure plate below the presser foot body to press cloth, when the feed dog moves forwards, the pressure plate synchronously pushes the cloth forwards along with the feed dog by utilizing the magnetic attraction effect, the dislocation of the upper layer and the lower layer of the smooth cloth is effectively reduced, meanwhile, a roller feeding cylinder on the pressure plate reduces the contact area of the cloth and the pressure plate, the surface dog is changed into point pressure, the friction resistance of the upper layer of cloth is reduced, and the roller feeding cylinder is driven to roll on the upper layer of cloth to play a role of pushing the cloth forwards when the feed dog forwards feeds the cloth, thereby effectively improving the synchronous feeding effect, in addition, the elastic pressing plate further presses the cloth downwards under the action of magnetic attraction to compensate the defect of insufficient pressing force, and the elastic connecting rod can limit excessive pressing of the elastic pressing plate to prevent the excessive pressing force.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
The utility model provides a synchronous formula sewing machine feeding mechanism is drawn to magnetism, includes assorted presser foot body and feed dog, the feed dog has magnetism, the mounting groove has been seted up to the lower extreme lateral wall of presser foot body, be provided with the pressure flitch that matches with the feed dog in the mounting groove, and press the thickness of flitch to be less than the degree of depth of mounting groove, fixedly connected with elastic connection layer between the cell wall of pressure flitch and mounting groove, and elastic connection layer's lower surface and the lower surface parallel and level of pressure flitch, the lower extreme lateral wall of pressure flitch is inlayed and is had a plurality of rollers to send a section of thick bamboo, and the roller send a section of thick bamboo to rotate through pivot and the inner wall of inlaying the groove and be connected. The presser foot comprises a presser foot body, a presser foot plate, a feed dog, a magnetic feed dog, a roller feed cylinder, a pressure plate, a feed dog, a magnetic force attraction device, a pressure plate, a feed dog, a pressure roller, a pressure plate, a feed dog, a pressure plate and a pressure.
Furthermore, the feed dog is composed of a plurality of non-magnetic bodies and permanent magnets, the non-magnetic bodies and the permanent magnets are alternately arranged, the width of each non-magnetic body is equal to that of each permanent magnet, and in order to enable the feed dog to drive the roller feeding barrel to roll on the cloth when the feed dog moves forwards, the magnetism of the feed dog needs to be discontinuous, otherwise, the roller feeding barrel is kept still through continuous magnetic attraction.
Furthermore, the part of the fifth of a roller feeding cylinder is exposed out of the lower surface of the pressure plate, so that the contact area between the cloth and the pressure plate is reduced, the resistance of the upper layer of cloth is reduced to keep the upper layer of cloth and the lower layer of cloth to move synchronously, and a plurality of rollers which are arranged at equal intervals are fixedly connected to the side wall of the roller feeding cylinder to feed the salient points, so that the contact of the salient points is increased, and the cloth pushing effect is improved.
Furthermore, the magnetic protrusions are embedded in one end, far away from the roller feeding barrel, of the roller feeding convex points, the magnetism of the magnetic protrusions is opposite to that of the permanent magnet, the magnetic protrusions are attracted downwards when the permanent magnet moves forwards under the action of mutual attraction of the opposite magnets, and therefore the rolling feeding effect is effectively improved.
Furthermore, a plurality of open cavities arranged at intervals with the roller feeding cylinder are formed in the side wall of the lower end of the pressure plate, an elastic pressure plate which is parallel to the lower surface of the pressure plate is fixedly connected to the inner wall of each open cavity, the elastic pressure plate is arched downwards under the magnetic attraction effect of the cloth feeding teeth to further press the upper layer of cloth downwards, and therefore the pressing force can be compensated under the condition that the pressing force is insufficient, and the situation that the cloth moves back and forth is effectively reduced.
Furthermore, a plurality of elastic connecting rods are fixedly connected between the upper end side wall of the opening cavity and the upper end side wall of the elastic pressing plate, the elasticity of the elastic connecting rods is larger than that of the elastic pressing plate, and the elastic connecting rods can limit excessive deformation of the elastic pressing plate, so that the situation that pressing force on cloth is too large is effectively reduced.
Further, the inner wall of elastic pressing plate is inlayed and is had a plurality of magnetic balls, and the diameter of a plurality of magnetic balls reduces to both sides in proper order by the middle part, and the big magnetic attraction that receives of magnetic ball diameter is big more, and elastic pressing plate could arch up downwards like this, can also avoid the too big purpose of area of contact when realizing pushing down upper cloth.
Furthermore, the pressure plate is made of hard magnetic materials and is used for pressing the cloth downwards under the magnetic attraction effect of the cloth feeding teeth, and the lower surface of the pressure plate is subjected to smoothing treatment, so that the resistance of the upper layer of cloth is reduced to the maximum extent, and the synchronous movement of the upper layer of cloth and the lower layer of cloth is effectively guaranteed.
Furthermore, the elastic connecting layer is of a hollow net structure, the elasticity of the elastic connecting layer is smaller than that of the elastic pressing plate, and the elastic connecting layer enables the pressing plate and the cloth feeding teeth to keep moving synchronously.
Further, the use method of the magnetic induction synchronous type sewing machine feeding mechanism comprises the following use steps:
s1, firstly, lifting the presser foot body, then placing a plurality of layers of cloth to be sewn on the cloth feeding teeth, flattening the cloth by hands to remove wrinkles, and finally, putting down the presser foot body to press the cloth;
s2, starting the sewing machine to work, and driving the feed dog to do reciprocating motion back and forth and up and down under the driving of the sewing machine transmission mechanism, when the presser foot body presses the cloth down onto the feed dog, the feed dog sucks the pressure plate below the presser foot body due to the shortening of the distance, so that the pressure plate and the feed dog clamp the cloth;
s3, when the feed dog moves forwards, the feed dog drives the pressure plate to move forwards along with the feed dog through magnetic force, so that the clamped cloth between the feed dog and the pressure plate moves synchronously, and simultaneously, when the feed dog moves forwards, the roller feed cylinder on the pressure plate rolls towards the advancing direction through magnetic force, so that the cloth on the upper layer and the cloth on the lower layer move synchronously.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the proposal arranges the elastically connected pressure plate below the existing pressure foot body, and uses the magnetic feed dog to attract the pressure plate below the pressure foot body to press the cloth, when the feed dog moves forward, the magnetic attraction effect is used to lead the pressure plate to push the cloth forward along with the feed dog, thereby effectively reducing the dislocation of the upper layer and the lower layer of the smooth cloth, simultaneously, the roller feed cylinder on the pressure plate reduces the contact area between the cloth and the pressure plate, the surface tooth is changed into point pressure, thereby not only reducing the friction resistance of the upper layer of the cloth, but also driving the roller feed cylinder to roll on the upper layer of the cloth to play the role of pushing the cloth forward when the feed dog feeds forward, thereby effectively improving the effect of synchronous feeding, in addition, the magnetic attraction effect leads the elastic pressure plate to further press the cloth downward to compensate the defect of insufficient pressing force, and the elastic connecting rod can limit the excessive pressing of the elastic pressure plate, preventing the pressing force from being too large.
(2) The feed dog comprises a plurality of no magnet and permanent magnet, and a plurality of no magnet and permanent magnet set up in turn, and every no magnet and permanent magnet's width is equal, in order to let the feed dog can drive roller feed cylinder roll on the cloth when moving forward, consequently the magnetism of feed dog will have the discontinuity, otherwise continuous magnetic attraction makes roller feed cylinder keep motionless.
(3) Two-fifths of the roller conveying cylinder is exposed out of the lower surface of the pressure plate, so that the contact area between the cloth and the pressure plate is reduced, the resistance of the upper layer of cloth is reduced to keep the upper layer of cloth and the lower layer of cloth to move synchronously, a plurality of rollers which are arranged at equal intervals are fixedly connected to the side wall of the roller conveying cylinder to convey the salient points, the salient points are in contact with the salient points, and the cloth pushing effect is improved.
(4) The roller send the bump to keep away from the roller and send the one end of a section of thick bamboo to inlay and have magnetism arch, and the protruding magnetism of magnetism is opposite with the magnetism of permanent magnet, utilizes the effect of opposite sex magnet inter attraction, and the magnetic projection of attraction downwards when the permanent magnet moves forward to effectively improve the roll extrusion pay-off effect.
(5) The lateral wall of the lower end of the pressure plate is provided with a plurality of open cavities which are arranged at intervals with the roller feeding cylinder, the inner wall of each open cavity is fixedly connected with an elastic pressure plate which is parallel to the lower surface of the pressure plate, and the elastic pressure plate downwards arches under the magnetic attraction effect of the feed dog to further press upper-layer cloth, so that the pressing force can be compensated under the condition of insufficient pressing force, and the condition that the cloth moves back and forth is effectively reduced.
(6) A plurality of elastic connecting rods are fixedly connected between the upper end side wall of the opening cavity and the upper end side wall of the elastic pressing plate, the elasticity of the elastic connecting rods is larger than that of the elastic pressing plate, and the elastic connecting rods can limit excessive deformation of the elastic pressing plate, so that the situation that pressing force on cloth is too large is effectively reduced.
(7) The inner wall of elastic pressing plate is inlaid with a plurality of magnetic balls, the diameters of the magnetic balls are reduced from the middle to two sides in sequence, the larger the magnetic attraction force received by the magnetic ball diameter is, the elastic pressing plate can arch downwards, and the purpose of avoiding the overlarge contact area when the upper-layer cloth is pressed downwards is achieved.
(8) The material pressing plate is made of hard magnetic materials and is used for pressing the cloth downwards under the magnetic attraction effect of the cloth feeding teeth, and the lower surface of the material pressing plate is subjected to smoothing treatment, so that the resistance of the upper layer of cloth is reduced to the maximum extent, and the synchronous movement of the upper layer of cloth and the lower layer of cloth is effectively guaranteed.
(9) The elastic connecting layer is of a hollow net structure, the elasticity of the elastic connecting layer is smaller than that of the elastic pressing plate, and the pressing plate and the cloth feeding teeth keep moving synchronously under the elasticity of the elastic connecting layer.
Drawings
FIG. 1 is a schematic view of a three-dimensional structure of a presser foot of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic view of the invention in a pre-operative state;
FIG. 4 is a schematic diagram of the start-up operation of the present invention;
FIG. 5 is a schematic diagram of the present invention in operation;
FIG. 6 is a schematic structural view of the elastic pressing plate of the present invention before deformation;
FIG. 7 is a structural diagram of the elastic pressing plate according to the present invention after deformation;
FIG. 8 is a schematic front view of the roller feed of the present invention;
fig. 9 is a front view schematically showing the structure of the feed dog according to the present invention.
The reference numbers in the figures illustrate:
1 presser foot body, 2 feed dog, 201 no magnet, 202 permanent magnet, 3 pressure plates, 301 open cavity, 302 elastic pressure plate, 303 elastic connecting rod, 304 magnetic ball, 4 elastic connecting layer, 5 roller feed cylinder, 501 roller feed bump and 502 magnetic bump.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
referring to fig. 1-9, a magnetic attraction synchronous feeding mechanism of a sewing machine, referring to fig. 1-2, comprises a presser foot body 1 and a feed dog 2 which are matched, the feed dog 2 has magnetism, referring to fig. 9, the feed dog 2 is composed of a plurality of non-magnetic bodies 201 and permanent magnets 202, the plurality of non-magnetic bodies 201 and the permanent magnets 202 are alternately arranged, and the width of each non-magnetic body 201 is equal to that of each permanent magnet 202, in order to enable the feed dog 2 to drive a roller feeding cylinder 5 to roll on the cloth when moving forward, the magnetism of the feed dog 2 needs to be discontinuous, otherwise, the roller feeding cylinder 5 keeps still by continuous magnetic attraction;
referring to fig. 3, a mounting groove is formed in the side wall of the lower end of the presser foot body 1, a pressure plate 3 matched with the feed dog 2 is arranged in the mounting groove, the pressure plate 3 is made of hard magnetic material and is used for pressing down the cloth under the magnetic attraction effect of the feed dog 2, and the lower surface of the pressure plate 3 is subjected to smoothing treatment, so that the resistance of the upper layer of cloth is reduced to the maximum extent, the synchronous movement of the upper layer of cloth and the lower layer of cloth is effectively ensured, and the thickness of the pressure plate 3 is smaller than the depth of the mounting groove;
referring to fig. 6-7, the sidewall of the lower end of the pressure plate 3 is provided with a plurality of open cavities 301 spaced from the roller feeding barrel 5, and the inner wall of each open cavity 301 is fixedly connected with an elastic pressure plate 302 flush with the lower surface of the pressure plate 3, the elastic pressure plate 302 is arched downwards under the magnetic attraction of the feed dog 2 to further press the upper layer of cloth, so that the pressing force can be compensated under the condition of insufficient pressing force, thereby effectively reducing the occurrence of the back and forth movement of the cloth, a plurality of elastic connecting rods 303 are fixedly connected between the sidewall of the upper end of the open cavity 301 and the sidewall of the upper end of the elastic pressure plate 302, the elasticity of the elastic connecting rods 303 is greater than that of the elastic pressure plate 302, the elastic connecting rods 303 can limit the excessive deformation of the elastic pressure plate 302, thereby effectively reducing the occurrence of the excessive pressing force on the cloth, the inner wall of the elastic pressure plate 302 is inlaid with a plurality of magnetic balls 304, and the diameters of the plurality of magnetic balls 304 are sequentially reduced from the middle part to both sides, the larger the diameter of the magnetic ball 304 is, the larger the magnetic attraction force is, so that the elastic pressing plate 302 can be arched downwards, and the purpose of pressing down the upper-layer cloth and avoiding overlarge contact area is realized;
referring to fig. 3, an elastic connection layer 4 is fixedly connected between the material pressing plate 3 and the groove wall of the mounting groove, the elastic connection layer 4 is a hollowed-out mesh structure, the elasticity of the elastic connection layer 4 is smaller than that of the elastic pressing plate 302, the elastic force of the elastic connection layer 4 keeps the material pressing plate 3 and the feed dog 2 moving synchronously, and the lower surface of the elastic connection layer 4 is flush with the lower surface of the material pressing plate 3;
referring to fig. 6-8, a plurality of roller feeding cylinders 5 are embedded in the sidewall of the lower end of the nip plate 3, and the roller feeding cylinders 5 are rotatably connected to the inner wall of the embedding groove through a rotating shaft, and two fifths of the roller feeding cylinders 5 are exposed out of the lower surface of the nip plate 3, so that in order to reduce the contact area between the cloth and the nip plate 3, thereby reducing the resistance of the upper layer of cloth to keep the synchronous movement with the lower layer, and the side wall of the roller feeding cylinder 5 is fixedly connected with a plurality of roller feeding convex points 501 arranged at equal intervals for increasing the contact of the convex points, thereby improving the effect of pushing the cloth, one end of the roller feeding convex point 501 far away from the roller feeding cylinder 5 is embedded with a magnetic bulge 502, and the magnetism of the magnetic protrusion 502 is opposite to that of the permanent magnet 202, by the attraction of the opposite magnets, when the permanent magnet 202 moves forwards, the magnetic protrusion 502 is attracted downwards, so that the rolling feeding effect is effectively improved.
Referring to fig. 3-5, the method of using the apparatus includes the following steps:
s1, firstly lifting the presser foot body 1, then placing a plurality of layers of cloth to be sewn on the cloth feeding teeth 2, flattening the cloth by hands to remove wrinkles, and finally putting down the presser foot body 1 to press the cloth;
s2, starting the sewing machine to work, and driving the feed dog 2 to do reciprocating motion back and forth and up and down under the driving of the sewing machine transmission mechanism, when the presser foot body 1 presses the cloth down onto the feed dog 2, the feed dog 2 attracts the pressure plate 3 below the presser foot body 1 due to the shortening of the distance, so that the pressure plate 3 and the feed dog 2 clamp the cloth;
s3, when the feed dog 2 moves forwards, the feed dog 2 drives the pressure plate 3 to move forwards along with the magnetic force, so that the clamped cloth between the feed dog and the pressure plate moves synchronously, and simultaneously when the feed dog 2 moves forwards, the roller 5 on the pressure plate 3 rolls towards the advancing direction through the magnetic force, so that the cloth on the upper layer and the cloth on the lower layer move synchronously.
The working principle of the device is as follows: when the presser foot body 1 presses the cloth down onto the feed dog 2, the feed dog 2 attracts the pressure plate 3 below the presser foot body 1 due to the shortening of the distance, so that the pressure plate 3 and the feed dog 2 clamp the cloth, after the sewing work is started, the feed dog 2 moves forward, the pressure plate 3 is driven to move forward by magnetic force, so that the clamped cloth between the pressure plate 3 and the feed dog 2 moves synchronously, when the feed dog 2 moves downward, the pressure plate 3 is restored to the original state under the elastic force of the elastic connecting layer 4 due to the increase of the distance, so that when the feed dog 2 moves forward again from back to front next time, the pressure plate 3 repeats the previous movement action, so as to realize the synchronous movement of the upper layer and the lower layer of cloth, the roller feed cylinder 5 rolls under the driving of the cloth, the roller feed cylinder 5 reduces the contact area of the cloth and the pressure plate 3, so as to reduce the resistance of the upper layer of cloth to keep the synchronous movement with the lower layer, effectively increasing the effect of synchronous feeding.
The presser foot has the advantages that the pressure plate 3 which is elastically connected is arranged below the existing presser foot body 1, the magnetic feed dog 2 is used for attracting the pressure plate 3 below the presser foot body 1 to press cloth, when the feed dog 2 moves forwards, the pressure plate 3 is enabled to synchronously push the cloth forwards along with the feed dog 2 by utilizing the magnetic attraction effect, the occurrence of the dislocation of the upper layer and the lower layer of smooth cloth is effectively reduced, meanwhile, the roller feed cylinder 5 on the pressure plate 3 reduces the contact area of the cloth and the pressure plate 3, the surface dog is changed into point pressure, the friction resistance of the upper layer of cloth is reduced, and when the feed dog 2 feeds forwards, the roller feed cylinder 5 is driven to roll on the upper layer of cloth to play a role of pushing the cloth forwards, so that the synchronous feeding effect is effectively improved, in addition, the magnetic attraction effect enables the elastic pressure plate 302 to further press the cloth downwards to compensate the defect of insufficient pressing force, the elastic connecting rod 303 can limit the excessive pressing of the elastic pressing plate 302, so as to prevent the pressing force from being too large.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the modified concept of the present invention should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a synchronous formula sewing machine feeding mechanism is drawn to magnetism, includes assorted presser foot body (1) and feed dog (2), its characterized in that: feed dog (2) have magnetism, the mounting groove has been seted up to the lower extreme lateral wall of presser foot body (1), be provided with in the mounting groove with feed dog (2) assorted pressure flitch (3), and the thickness of pressure flitch (3) is less than the degree of depth of mounting groove, fixed connection elastic connection layer (4) between the cell wall of pressure flitch (3) and mounting groove, and the lower surface of elastic connection layer (4) and the lower surface parallel and level of pressure flitch (3), the lower extreme lateral wall of pressure flitch (3) is inlayed and is had a plurality of rollers to send a section of thick bamboo (5), and the roller send a section of thick bamboo (5) to rotate through pivot and the inner wall of inlaying the groove and be connected.
2. The feeding mechanism of magnetic-attraction synchronous sewing machine according to claim 1, characterized in that: the cloth feeding tooth (2) is composed of a plurality of non-magnetic bodies (201) and permanent magnets (202), the non-magnetic bodies (201) and the permanent magnets (202) are arranged alternately, and the widths of the non-magnetic bodies (201) and the permanent magnets (202) are equal.
3. The feeding mechanism of magnetic-attraction synchronous sewing machine according to claim 1, characterized in that: two fifths of the roller feeding cylinder (5) are exposed out of the lower surface of the pressure plate (3), and a plurality of roller feeding salient points (501) arranged at equal intervals are fixedly connected to the side wall of the roller feeding cylinder (5).
4. A feeding mechanism of a magnetically-guided synchronous sewing machine according to claim 2 or 3, wherein: one end, far away from the roller feeding cylinder (5), of the roller feeding convex point (501) is embedded with a magnetic protrusion (502), and the magnetism of the magnetic protrusion (502) is opposite to that of the permanent magnet (202).
5. The feeding mechanism of magnetic-attraction synchronous sewing machine according to claim 1, characterized in that: the side wall of the lower end of the pressure plate (3) is provided with a plurality of open cavities (301) which are arranged at intervals with the roller feeding barrel (5), and the inner wall of each open cavity (301) is fixedly connected with an elastic pressure plate (302) which is parallel to the lower surface of the pressure plate (3).
6. The feeding mechanism of magnetic-attraction synchronous sewing machine according to claim 5, characterized in that: a plurality of elastic connecting rods (303) are fixedly connected between the upper end side wall of the open cavity (301) and the upper end side wall of the elastic pressing plate (302), and the elasticity of the elastic connecting rods (303) is greater than that of the elastic pressing plate (302).
7. The feeding mechanism of magnetic-attraction synchronous sewing machine according to claim 5, characterized in that: a plurality of magnetic balls (304) are inlaid in the inner wall of the elastic pressing plate (302), and the diameters of the magnetic balls (304) are sequentially reduced from the middle part to two sides.
8. The feeding mechanism of magnetic-attraction synchronous sewing machine according to claim 1, characterized in that: the pressure plate (3) is made of hard magnetic materials, and the lower surface of the pressure plate (3) is subjected to smoothing treatment.
9. The feeding mechanism of magnetic-attraction synchronous sewing machine according to claim 5, characterized in that: the elastic connecting layer (4) is of a hollowed-out net structure, and the elasticity of the elastic connecting layer (4) is smaller than that of the elastic pressing plate (302).
10. Use of a feeding mechanism of a magnetically-actuated synchronous sewing machine according to any of claims 1-9, wherein: the method comprises the following steps:
s1, firstly lifting the presser foot body (1), then placing a plurality of layers of cloth to be sewn on the cloth feeding teeth (2), flattening the cloth by hands to remove wrinkles, and finally putting down the presser foot body (1) to press the cloth;
s2, starting the sewing machine to work, and enabling the feed dog (2) to do reciprocating motion back and forth and up and down under the driving of the sewing machine transmission mechanism, wherein when the presser foot body (1) presses the cloth down onto the feed dog (2), the feed dog (2) attracts the pressure plate (3) below the presser foot body (1) due to the shortening of the distance, so that the pressure plate (3) and the feed dog (2) clamp the cloth;
s3, when the feed dog (2) moves forwards, the feed dog (2) drives the pressure plate (3) to move forwards along with the magnetic force, so that the clamped cloth between the feed dog and the pressure plate moves synchronously, and meanwhile, when the feed dog (2) moves forwards, the roller feed cylinder (5) on the pressure plate (3) rolls towards the advancing direction through the magnetic force, so that the cloth on the upper layer and the cloth on the lower layer move synchronously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191409427A (en) * | 1914-04-16 | 1915-04-15 | Wallace Fairweather | Ruffling Devices for Sewing Machines. |
| US2948242A (en) * | 1958-07-17 | 1960-08-09 | Shuman Abraham | Presser foot |
| GB1187591A (en) * | 1966-07-29 | 1970-04-08 | Courtaulds Ltd | Improvements in and relating to Sewing Machines |
| JPH01155893A (en) * | 1987-12-14 | 1989-06-19 | Futaba Denjiki Kk | Automatic presser of sewing machine |
| JPH09192367A (en) * | 1996-01-19 | 1997-07-29 | Pegasus Sewing Mach Mfg Co Ltd | Stitching machine with cloth guide and knife-fitted holders |
| CN2668663Y (en) * | 2003-02-12 | 2005-01-05 | 上海升君缝制设备有限公司 | Anti-crinkle device of sewing machine |
| JP2010246742A (en) * | 2009-04-16 | 2010-11-04 | Juki Corp | Belt loop attaching machine |
| CN202830447U (en) * | 2012-09-29 | 2013-03-27 | 宁波舒普机电科技有限公司 | Feed mechanism used for patch pocket machine |
| CN204385426U (en) * | 2014-11-06 | 2015-06-10 | 上海富山精密机械科技有限公司 | A kind of sewing machine cloth automatic edge-adjusting device |
| CN105506867A (en) * | 2014-10-09 | 2016-04-20 | Juki株式会社 | Sewing machine |
| CN105525446A (en) * | 2016-02-05 | 2016-04-27 | 衢州市立掏智能科技有限公司 | Sewing machine capable of realizing sewn material shrinking and magnetic clamp positioning |
| CN109023744A (en) * | 2018-09-18 | 2018-12-18 | 湖州织里凯狄酷娃服饰有限公司 | A kind of computer controlled sewing machine facilitating sewing waistband |
| CN209555507U (en) * | 2019-01-11 | 2019-10-29 | 江西吴瑞塑业有限公司 | A kind of automatic seam cutter of environmental protection cotton modeling woven bag production |
| CN110607612A (en) * | 2019-10-14 | 2019-12-24 | 杰克缝纫机股份有限公司 | Sewing material thickness detection device and sewing machine |
| US20200291562A1 (en) * | 2019-03-15 | 2020-09-17 | Juki Corporation | Lower thread supply device of sewing machine |
| CN212955638U (en) * | 2020-08-24 | 2021-04-13 | 南宁市广美制衣有限公司 | Presser foot device of sewing machine |
-
2021
- 2021-05-31 CN CN202110602833.5A patent/CN113529289B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191409427A (en) * | 1914-04-16 | 1915-04-15 | Wallace Fairweather | Ruffling Devices for Sewing Machines. |
| US2948242A (en) * | 1958-07-17 | 1960-08-09 | Shuman Abraham | Presser foot |
| GB1187591A (en) * | 1966-07-29 | 1970-04-08 | Courtaulds Ltd | Improvements in and relating to Sewing Machines |
| JPH01155893A (en) * | 1987-12-14 | 1989-06-19 | Futaba Denjiki Kk | Automatic presser of sewing machine |
| JPH09192367A (en) * | 1996-01-19 | 1997-07-29 | Pegasus Sewing Mach Mfg Co Ltd | Stitching machine with cloth guide and knife-fitted holders |
| CN2668663Y (en) * | 2003-02-12 | 2005-01-05 | 上海升君缝制设备有限公司 | Anti-crinkle device of sewing machine |
| JP2010246742A (en) * | 2009-04-16 | 2010-11-04 | Juki Corp | Belt loop attaching machine |
| CN202830447U (en) * | 2012-09-29 | 2013-03-27 | 宁波舒普机电科技有限公司 | Feed mechanism used for patch pocket machine |
| CN105506867A (en) * | 2014-10-09 | 2016-04-20 | Juki株式会社 | Sewing machine |
| CN204385426U (en) * | 2014-11-06 | 2015-06-10 | 上海富山精密机械科技有限公司 | A kind of sewing machine cloth automatic edge-adjusting device |
| CN105525446A (en) * | 2016-02-05 | 2016-04-27 | 衢州市立掏智能科技有限公司 | Sewing machine capable of realizing sewn material shrinking and magnetic clamp positioning |
| CN109023744A (en) * | 2018-09-18 | 2018-12-18 | 湖州织里凯狄酷娃服饰有限公司 | A kind of computer controlled sewing machine facilitating sewing waistband |
| CN209555507U (en) * | 2019-01-11 | 2019-10-29 | 江西吴瑞塑业有限公司 | A kind of automatic seam cutter of environmental protection cotton modeling woven bag production |
| US20200291562A1 (en) * | 2019-03-15 | 2020-09-17 | Juki Corporation | Lower thread supply device of sewing machine |
| CN110607612A (en) * | 2019-10-14 | 2019-12-24 | 杰克缝纫机股份有限公司 | Sewing material thickness detection device and sewing machine |
| CN212955638U (en) * | 2020-08-24 | 2021-04-13 | 南宁市广美制衣有限公司 | Presser foot device of sewing machine |
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| Publication number | Publication date |
|---|---|
| CN113529289B (en) | 2024-01-23 |
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Effective date of registration: 20231220 Address after: No. 233 Xianmu West Road, Huzhen Town, Jinyun County, Lishui City, Zhejiang Province, 321400 Applicant after: Zhejiang Fanghua Sewing Equipment Co.,Ltd. Address before: 450000 Zhengzhou University, No. 100, science Avenue, Zhengzhou, Henan Applicant before: Yang Junbo |
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