CN215561072U - Large-thickness fabric sewing device - Google Patents
Large-thickness fabric sewing device Download PDFInfo
- Publication number
- CN215561072U CN215561072U CN202120920521.4U CN202120920521U CN215561072U CN 215561072 U CN215561072 U CN 215561072U CN 202120920521 U CN202120920521 U CN 202120920521U CN 215561072 U CN215561072 U CN 215561072U
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- China
- Prior art keywords
- presser foot
- sewing
- connecting piece
- supporting rod
- machine head
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- Expired - Fee Related
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- 239000004744 fabric Substances 0.000 title claims abstract description 65
- 238000009958 sewing Methods 0.000 title claims abstract description 59
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000003860 storage Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 11
- 238000009960 carding Methods 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model discloses a large-thickness fabric sewing device, which comprises a sewing platform; a machine head; the sewing needle is driven by the machine head to move up and down to penetrate through the fabric for sewing; the presser foot is arranged on the machine head through a support rod; the adjusting component comprises two first tooth parts which are symmetrically arranged at one end, close to the presser foot, of the supporting rod, a connecting piece which is rotatably sleeved at the end part of the supporting rod, a mounting hole which is axially arranged in the connecting piece along the axial direction of the connecting piece, two second tooth parts which are symmetrically arranged on the inner wall of the mounting hole, and a locking piece which can be inserted between the connecting piece and the supporting rod to limit the connecting piece to rotate relative to the supporting rod, wherein the second tooth parts can be meshed with the first tooth parts. According to the utility model, the first tooth part, the second tooth part and the locking piece are arranged, and the presser foot adjusting assembly is arranged outside the machine head, so that the internal structure of the machine head is simplified, and the manufacturing cost of the machine head is reduced; and the adjusting mode is simple, and the processing efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of sewing machines, and particularly relates to a large-thickness fabric sewing device.
Background
The sewing device is a common device in the textile industry, wherein the presser foot is an indispensable part in the sewing device, and the presser foot is matched with the feed dog to ensure that the fabric can be fixed and moved on the sewing platform. The height of the presser foot needs to be adjusted when the fabrics with different thicknesses are sewn; however, the traditional presser foot height adjusting mechanism is arranged inside the machine head, so that the machine head is complex in structure, high in manufacturing cost and complex in adjusting mode, and the processing efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sewing device for large-thickness fabrics, aiming at overcoming the defects of the prior art.
In order to achieve the purpose, the utility model adopts the following technical scheme: a sewing device for large-thickness fabric comprises a sewing platform;
the machine head is arranged on the sewing platform;
the sewing needle is driven by the machine head to move up and down to penetrate through the fabric for sewing;
the presser foot is arranged on the machine head through a support rod;
the adjusting component comprises two first tooth parts which are symmetrically arranged at one end, close to the presser foot, of the supporting rod, a connecting piece which is rotatably sleeved at the end part of the supporting rod, a mounting hole which is axially arranged in the connecting piece along the axial direction of the connecting piece, two second tooth parts which are symmetrically arranged on the inner wall of the mounting hole, and a locking piece which can be inserted between the connecting piece and the supporting rod to limit the rotation of the connecting piece relative to the supporting rod, the presser foot is detachably connected with the connecting piece, and the second tooth parts can be meshed with the first tooth parts.
Optionally, a first tangent plane is further disposed on the support rod along the length direction, the first tangent plane is disposed between the two first tooth portions, and a normal of the first tangent plane is perpendicular to the axis of the support rod.
Optionally, a central angle α of an arc line enclosed by the first tooth portion in the circumferential direction of the support rod is smaller than 90 °.
Optionally, the length of the first tangent plane in the axial direction of the support bar is L1, and the length of the first tooth part in the axial direction of the support bar is L2, wherein L1> L2.
Optionally, the locking member is disposed at an end of the connecting member away from the presser foot, and includes a circular ring sleeved on the support rod and two insertion portions symmetrically disposed at ends of the circular ring facing the presser foot, one side of the insertion portion facing the axis of the circular ring is provided with a second tangent plane, and when the locking member is sleeved on the support rod, the second tangent plane is connected with the first tangent plane
Optionally, a chamfered portion is provided at an end of the insert portion facing the presser foot.
Optionally, the connecting member is provided with a fitting hole near one end of the presser foot, the fitting hole is square, and the presser foot is provided with a connecting end capable of being inserted into the fitting hole.
Optionally, the first section is further provided with a scale along the height direction.
Optionally, a lighting lamp is further arranged on the machine head, the lighting lamp is arranged near the supporting rod and the sewing needle, and the lighting lamp is adsorbed on the machine head through a magnet.
Optionally, a plug is connected to the illuminating lamp, a power transmission line is arranged on the machine head, the power transmission line is connected with the machine head through a buckle, and a socket matched with the plug is arranged on the power transmission line.
In summary, the first tooth part, the second tooth part and the locking part are arranged, when thick fabrics need to be sewn, the locking part is firstly shifted upwards to withdraw from the mounting hole, then the locking part is rotated until the first tooth part is disengaged from the second tooth part, the locking part is rotated again until the first tooth part is engaged with the second tooth part after the height of the connecting part is adjusted upwards, the locking part is inserted into the mounting hole to complete adjustment, the presser foot adjusting assembly is arranged outside the machine head, the internal structure of the machine head is simplified, and the manufacturing cost of the machine head is reduced; and the adjusting mode is simple, and the processing efficiency is improved.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is an enlarged view of a point a in fig. 1.
Fig. 3 is an enlarged view at B in fig. 1.
Fig. 4 is an enlarged view at C in fig. 1.
FIG. 5 is a perspective view of the support rod, the connecting member and the presser foot of FIG. 1 in relation to each other
FIG. 6 is an exploded view of FIG. 5
Fig. 7 is a perspective view of fig. 6 from another perspective.
Figure 8 is a front view of the support pole of figure 1.
Fig. 9 is a bottom view of the support bar of fig. 8.
Fig. 10 is a top view of the connector of fig. 1.
Fig. 11 is a left side view of fig. 1.
Fig. 12 is a cross-sectional view taken along line D-D of fig. 11.
Fig. 13 is an enlarged view at E in fig. 12.
Fig. 14 is an enlarged view at F in fig. 12.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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.
As shown in fig. 1-14, a sewing device for thick fabrics comprises a base 11, a sewing platform 13, a sewing mechanism, a collecting component and a feeding mechanism; the base 11 is horizontally arranged and is provided with two side plates 12 arranged along the vertical direction; the sewing platform 13 is fixedly arranged on the base 11 and provides a fabric sewing plane; the sewing mechanism is arranged on the sewing platform 13 and is used for sewing the fabric; the collecting assembly is arranged at the discharging end of the sewing mechanism and is used for collecting the sewn fabric; the feeding mechanism is arranged at one feeding end of the sewing device to convey the fabric.
Specifically, the sewing mechanism comprises a machine head 21, a sewing needle 22, a presser foot 23 and an adjusting component; the machine head 21 is arranged on the sewing platform 13, the machine head 21 is the prior art, and the structure is not described in detail; the stitch is arranged on the machine head 21 and driven by the machine head 21 to move up and down to penetrate through the fabric for sewing; the presser foot 23 is arranged on the machine head 21 through a support rod 24 and is matched with the feed dog to ensure that the fabric can be fixed and moved on the sewing platform 13; the adjusting assembly is used for adjusting the height of the presser foot 23 to adapt to fabrics with different thicknesses.
The adjusting component comprises a first tooth part 241, a first tangent plane 242, a connecting piece 25, a mounting hole 251, a second tooth part 252 and a locking piece 26; the two first tooth portions 241 are symmetrically arranged on the support rod 24 along the circumferential direction of the support rod 24 and are positioned at one end of the support rod 24 close to the presser foot 23; two first tangent planes 242 are arranged between the two first teeth 241, the first tangent plane 242 is arranged between the two first teeth 241, and the normal of the first tangent plane 242 is perpendicular to the axis of the support rod 24; the connecting piece 25 is rotatably sleeved at the end part of the supporting rod 24, and the presser foot 23 is detachably arranged on the connecting piece 25; the mounting hole 251 is arranged inside the connecting piece 25 along the axial direction of the connecting piece 25, and the end part of the support rod 24 is inserted into the mounting hole 251; the two second tooth parts 252 are symmetrically arranged on the inner wall of the mounting hole 251 along the circumferential direction of the mounting hole 251, the second tooth parts 252 can be meshed with the first tooth part 241, and when the second tooth parts 252 are in a meshed state with the first tooth part 241, the connecting piece 25 is limited to move axially along the support rod 24; the locking member 26 is disposed at an end of the connecting member 25 away from the presser foot 23, and is insertable between the connecting member 25 and the support rod 24 to limit the rotation of the connecting member 25 relative to the support rod 24, so that the first tooth portion 241 and the second tooth portion 252 are maintained in an engaged state to lock the connecting member 25.
The locking piece 26 comprises a circular ring 261 and an inserting part 262, wherein the circular ring 261 is sleeved on the support rod 24 and is positioned at one end of the connecting piece 25 far away from the presser foot 23; two inserting portions 262 are arranged, the two inserting portions 262 are symmetrically arranged at one end of the circular ring 261 facing the presser foot 23, one side of the inserting portion 262 facing the axis of the circular ring 261 is provided with a second tangent plane 263, and the second tangent plane 263 is located between the two second tooth portions 252. When the locking member 26 is sleeved on the supporting rod 24, the second cut surface 263 is connected to the first cut surface 242 to limit the rotation of the locking member 26 relative to the supporting rod 24, and when the inserting portion 262 is inserted into the mounting hole 251, the inserting portion 262 abuts against the second tooth portion 252 to limit the rotation of the connecting member 25, so as to completely lock the connecting member 25.
Further, referring to fig. 9 and 10, a central angle α of an arc line enclosed by the first tooth portion 241 in the circumferential direction of the support rod 24 is smaller than 90 °, and similarly, a central angle β of an arc line enclosed by the second tooth portion 252 in the circumferential direction of the mounting hole 251 is smaller than 90 °, so that the second tooth portion 252 can be rotated to a position completely disengaged from the first tooth portion 241, and the connecting member 25 can be moved relative to the support rod 24 along the axial direction of the support rod 24 to adjust the height of the presser foot 23, and the structure is simple and convenient to operate.
The specific adjustment manner of the height of the presser foot 23 is that the support rod 24 is sleeved with the locking member 26 after the second tangent plane 263 is aligned with the first tangent plane 242, then the connecting member 25 connected with the presser foot 23 is sleeved with the support rod 24 and is rotated until the first tooth portion 241 is meshed with the second tooth portion 252, and then the locking member 26 is inserted into the mounting hole 251 to complete the mounting of the presser foot 23; when thick fabrics need to be sewn, the locking piece 26 is firstly shifted upwards to be withdrawn out of the mounting hole 251, then the locking piece 26 is rotated until the first tooth part 241 is disengaged from the second tooth part 252, the locking piece 26 is rotated again until the first tooth part 241 is engaged with the second tooth part 252 after the height of the connecting piece 25 is adjusted upwards, the locking piece 26 is inserted into the mounting hole 251 to complete adjustment, and the adjustment mode is simple; the adjusting component of the presser foot 23 is arranged outside the machine head 21, so that the internal structure of the machine head 21 is simplified, and the manufacturing cost of the machine head 21 is reduced.
Further, a chamfered portion 264 is provided at one end of the inserting portion 262 facing the presser foot 23 to facilitate the inserting portion 262 to be inserted into the mounting hole 251.
Referring to fig. 8, in some embodiments, the length of the first tangent plane 242 along the axial direction of the support rod 24 is L1, and the length of the first tooth 241 along the axial direction of the support rod 24 is L2, where L1> L2, so that the locking member 26 can be shifted up to a position higher than the first tooth 241 to avoid interference with the socket 262 when adjusting the state of the connecting member 25.
In some embodiments, the connecting member 25 is provided with a fitting hole 253 near one end of the presser foot 23, the fitting hole 253 is configured to be substantially square, the presser foot 23 has a connecting end 231 insertable into the fitting hole 253 and connected by a bolt, the connecting end 231 is also configured to be substantially square, and the rotation-stopping matching between the presser foot 23 and the connecting member 25 is realized, so that the structure is simple and the assembly is convenient.
In some embodiments, the first cut surface 242 is further provided with a scale line along the height direction, so as to facilitate the precise height adjustment of the presser foot 23.
The head 21 is also provided with an illuminating lamp 31, the illuminating lamp 31 is arranged near the support rod 24 and the sewing needle 22, and the illuminating lamp 31 is adsorbed on the head 21 through a magnet 32; set up light 31, carry out the light filling to presser foot 23 and sewing position, make things convenient for the operator to observe the surface fabric condition of sewing, simultaneously, pass through magnet 32 with light 31 and adsorb on aircraft nose 21, need not to set up the light source in addition near aircraft nose 21 to the position of light 31 is adjusted as required to the convenience. The illuminating lamp 31 is connected with a plug 33, the machine head 21 is provided with a power transmission line 34, the power transmission line 34 is connected with the machine head 21 through a buckle 35, and the power transmission line 34 is provided with a socket 36 matched with the plug 33, so that the illuminating lamp 31 can be conveniently powered on and off.
Further, the presser foot 23 is provided with two branch parts 231, and a gap between the two branch parts 231 can be inserted by the sewing needle 22; the branch 231 is rotatably provided with a first roller 232, so that the friction force between the presser foot 23 and the fabric is reduced, and the fabric is prevented from being wrinkled; the bottom of the presser foot 23 is provided with a groove 233, and the groove 233 is positioned at one end of the presser foot 23 far away from the branch 231; a plurality of rotatable second rollers 234 are arranged in the groove 233, so that the friction force between the presser foot 23 and the fabric is further reduced.
In some embodiments, the feeding mechanism comprises a stock roll 41, a carding roll 42, a fixed roll 43, a nip roll 44, and a strip groove 121; the two material storage rollers 41 are respectively rotatably arranged on the side plate 12, the two material storage rollers 41 are arranged at intervals along the height direction, the two material storage rollers 41 are parallel to each other, and meanwhile, the two material storage rollers 41 are respectively wound with fabrics and simultaneously feed the fabrics, so that the two layers of fabrics are stacked; the two carding rollers 42 are arranged on one side of the material storage roller 41 close to the sewing platform 13, and two ends of the carding rollers are rotatably arranged on the side plates 12 to stack two layers of fabrics conveyed by the material storage roller 41; the fixed roller 43 is arranged on one side of the carding roller 42 close to the sewing platform 13, two ends of the fixed roller 43 can be rotatably arranged on the side plate 12, and the height of the top surface of the fixed roller 43 is flush with that of the top surface of the sewing platform 13, so that the friction between the fabric and the edge of the sewing platform 13 is reduced; the material pressing roller 44 is positioned above the fixed roller 43 and is arranged in parallel with the fixed roller 43, the material pressing roller 44 is made of metal materials, the material pressing roller is heavy in texture and can completely compact the fabric, the material pressing roller 44 is matched with the fixed roller 43 and is used for rolling the fabric before sewing, the fabric is prevented from being wrinkled, smooth feeding of the fabric is guaranteed, and sewing quality is improved; the strip-shaped groove 121 is formed in the side plate 12, the two ends of the nip roll 44 can be arranged in the strip-shaped groove 121 in a vertically sliding mode, the height of the nip roll can be automatically adjusted under the extrusion of the fabric, the nip roll is suitable for the fabrics with different thicknesses, and the nip roll is simple in structure, low in manufacturing cost and convenient to use.
In some embodiments, the rubber layer 441 is sleeved on the nip roll 44, so that the friction coefficient of the nip roll 44 is increased, the nip roll 44 and the fabric are prevented from sliding relatively, and the flattening effect on the fabric is improved.
In some embodiments, in order to prevent the upper and lower layers of fabric from shifting when stacked, two blocking portions 421 are provided at intervals on one of the carding rollers 42, the blocking portions 421 are configured to be ring-shaped, two ring grooves 422 are provided at intervals on the other carding roller 42, the blocking portions 421 can be clamped into the ring grooves 422, and the blocking portions 421 cooperate with the ring grooves 422 to limit the fabric, so as to prevent the fabric from deviating.
In some embodiments, the carding machine further comprises a tensioning mechanism arranged between the carding roller and the fixed roller 43 and used for adjusting the tension of the fabric and preventing wrinkles from being generated; the tensioning mechanism comprises a tensioning roller 51 and a reset component, the tensioning roller 51 can move upwards or downwards under the pressure of the fabric to abut against the fabric, and when the fabric moves, the tensioning roller 51 is in rolling contact with the fabric; the reset assembly is arranged on the side plate 12 and comprises a supporting piece for supporting the tension roller 51 and a fixing plate 53 fixed on the side plate 12, the fixing plate 53 is connected with the supporting piece through an elastic piece 54, the supporting piece comprises a moving frame 521 for supporting two ends of the tension roller and a sliding rod 522 connected with the moving frame 521; the elastic member 54 is a spring, and the elastic member 54 is sleeved on the sliding rod 522, when the fabric abuts against the tension roller 51, the elastic member 54 is in a stretching state; the tensioning roller 51 is always in contact with the fabric under the action of the elastic piece 54, and when the fabric is too tight or too loose, the position of the tensioning roller 51 is adjusted, so that the tensioning degree of the fabric is adjusted, the fabric is kept in a tight state, wrinkles are avoided, and the sewing effect is improved. The sliding rod 522 is provided with a limit convex part 5221 in limit fit with the elastic part 54, and the limit convex part 5221 is connected with the elastic part 54; the fixing plate 53 is provided with a fixing sleeve 55 connected with the elastic part 54, the fixing sleeve 55 is detachably connected with the fixing plate 53, and the sliding rod 522 is slidably arranged through the fixing sleeve 55, so that the abrasion between the sliding rod 522 and the fixing plate 53 is reduced.
In some embodiments, a speed sensor 61 for detecting the fabric conveying speed is further installed on the sewing platform 13, so as to monitor the fabric conveying speed in real time.
The two storage rollers 41 are driven to rotate by a driving assembly, the driving assembly comprises a first belt wheel 71, a second belt wheel 72, a transmission belt 73 and a first driving piece 74, the first belt wheel 71 is arranged at the end part of one storage roller 41, and the second storage roller 41 is arranged at the end part of the other storage roller 41; the transmission belt 73 is sleeved on the transmission belt 73 on the first belt wheel and the second belt wheel, so that the rotation synchronism of the first storage roller 41 and the second storage roller 41 is ensured, and the synchronous feeding of the two layers of fabrics is realized; the first driving member 74 is a motor and is fixedly disposed on the side plate for driving the material storage roller 41 to rotate.
The collecting assembly comprises a collecting barrel 81 and a second driving piece 83, the collecting barrel 81 can be rotatably arranged on the side plate 12, and the second driving piece 83 is a motor and used for driving the collecting barrel 81 to rotate and rolling the sewn fabric.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (10)
1. A large-thickness fabric sewing device comprises
Sewing a platform;
the machine head is arranged on the sewing platform;
the sewing needle is driven by the machine head to move up and down to penetrate through the fabric for sewing;
the presser foot is arranged on the machine head through a support rod;
the method is characterized in that: the adjusting component comprises two first tooth parts which are symmetrically arranged at one end, close to the presser foot, of the supporting rod, a connecting piece which is rotatably sleeved at the end part of the supporting rod, a mounting hole which is axially arranged in the connecting piece along the axial direction of the connecting piece, two second tooth parts which are symmetrically arranged on the inner wall of the mounting hole, and a locking piece which can be inserted between the connecting piece and the supporting rod to limit the rotation of the connecting piece relative to the supporting rod, the presser foot is detachably connected with the connecting piece, and the second tooth parts can be meshed with the first tooth parts.
2. The sewing machine for thick fabric according to claim 1, wherein: the supporting rod is further provided with a first tangent plane along the length direction, the first tangent plane is arranged between the two first tooth parts, and the normal line of the first tangent plane is perpendicular to the axis of the supporting rod.
3. The sewing machine for thick fabric according to claim 1, wherein: the central angle alpha of an arc line enclosed by the first tooth part in the circumferential direction of the supporting rod is smaller than 90 degrees.
4. The sewing machine for thick fabric according to claim 2, wherein: the length of the first tangent plane along the axial direction of the support rod is L1, and the length of the first tooth part along the axial direction of the support rod is L2, wherein L1> L2.
5. The sewing machine for thick fabric according to claim 2, wherein: the locking piece is arranged at one end, far away from the presser foot, of the connecting piece and comprises a circular ring sleeved on the supporting rod and two inserting parts symmetrically arranged at one end, facing the presser foot, of the circular ring, and a second tangent plane is arranged at one side, facing the axis of the circular ring, of the inserting parts, and when the locking piece is sleeved on the supporting rod, the second tangent plane is connected with the first tangent plane.
6. A sewing machine for thick fabric as claimed in claim 5, wherein: the inserting portion is provided with a chamfered portion facing one end of the presser foot.
7. The sewing machine for thick fabric according to claim 1, wherein: the connecting piece is provided with a mounting hole at one end close to the presser foot, the mounting hole is square, and the presser foot is provided with a connecting end capable of being inserted into the mounting hole.
8. The sewing machine for thick fabric according to claim 2, wherein: the first tangent plane is also provided with scales along the height direction.
9. The sewing machine for thick fabric according to claim 1, wherein: still be equipped with the light on the aircraft nose, this light is located near bracing piece, seam needle, and this light passes through magnet and adsorbs on the aircraft nose.
10. A sewing machine for a thick fabric as claimed in claim 9, wherein: the illuminating lamp is connected with a plug, a power transmission line is arranged on the machine head and connected with the machine head through a buckle, and a socket matched with the plug is arranged on the power transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120920521.4U CN215561072U (en) | 2021-04-29 | 2021-04-29 | Large-thickness fabric sewing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120920521.4U CN215561072U (en) | 2021-04-29 | 2021-04-29 | Large-thickness fabric sewing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215561072U true CN215561072U (en) | 2022-01-18 |
Family
ID=79857954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120920521.4U Expired - Fee Related CN215561072U (en) | 2021-04-29 | 2021-04-29 | Large-thickness fabric sewing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215561072U (en) |
-
2021
- 2021-04-29 CN CN202120920521.4U patent/CN215561072U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |