CN108950898B - Round collar sewing machine - Google Patents
Round collar sewing machine Download PDFInfo
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- CN108950898B CN108950898B CN201811170514.6A CN201811170514A CN108950898B CN 108950898 B CN108950898 B CN 108950898B CN 201811170514 A CN201811170514 A CN 201811170514A CN 108950898 B CN108950898 B CN 108950898B
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- 238000009958 sewing Methods 0.000 title claims abstract description 128
- 239000004744 fabric Substances 0.000 claims abstract description 128
- 238000000034 method Methods 0.000 claims abstract description 17
- 230000008569 process Effects 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 230000006698 induction Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 2
- 230000037431 insertion Effects 0.000 claims 2
- 238000003825 pressing Methods 0.000 abstract description 14
- 239000011229 interlayer Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 210000004907 gland Anatomy 0.000 description 6
- 230000004044 response Effects 0.000 description 5
- 230000007306 turnover Effects 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B33/00—Devices incorporated in sewing machines for supplying or removing the work
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B21/00—Sewing machines with devices for automatically controlling movement of work-carrier relative to stitch-forming mechanism in order to obtain particular configuration of seam, e.g. programme-controlled for sewing collars, for attaching pockets
- D05B21/007—Sewing machines with devices for automatically controlling movement of work-carrier relative to stitch-forming mechanism in order to obtain particular configuration of seam, e.g. programme-controlled for sewing collars, for attaching pockets to obtain circular or elliptical seams
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B35/00—Work-feeding or -handling elements not otherwise provided for
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention relates to a round collar sewing machine, which comprises a collar feeding device and a sewing auxiliary device, wherein the collar feeding device is arranged on a working table and is close to a sewing device, the sewing auxiliary device is arranged on the collar feeding device, collar cloth is sleeved on the collar feeding device at the collar feeding stage, a lapel position is operated at the same position, and the collar cloth is fed into a needle after being tidied by the sewing auxiliary device at the sewing stage, so that complete circle sewing of the collar cloth and a garment body is completed. According to the invention, automatic collar feeding is realized through the collar feeding device, and the power-off delay circuit is started to continue to delay operation by touching the micro switch by the lapel position so as to ensure that the initial sewing position of each collar cloth is consistent; and the collar cloth before entering the machine needle is arranged in the sewing operation process, the collar cloth is inserted into the interlayer of the collar cloth and the pressing sheets smooth the upper piece of the collar cloth, so that the collar cloth is ensured to be tidy and not wrinkled, the detection rod can retract when the detection rod is touched in the joint position, the joint position can be continuously operated to the machine needle, the sewing operation of the whole circle can be completed, the sewing effect is consistent, and the degree of automation is higher.
Description
Technical Field
The invention relates to the technical field of sewing equipment, in particular to a round collar sewing machine.
Background
At present, when a collar or a hem is sewn, a clothing body is required to be placed above a needle plate, then the collar or the hem is placed above the clothing body, and then the sewing is performed. In the sewing process, an operator is required to hold the clothes body and the collar or the hem by hands, and the following defects exist in the operation mode: firstly, the operator holds the stitching materials for a long time, so that the operator is easy to fatigue to cause acid, and the labor intensity is high; secondly, the hand controls the sewing route in the sewing process, which is easy to cause the conditions of stitch bending and the like, so that the sewing effect is poor; thirdly, the sewn quality of different workers is difficult to unify, the collar heights are inconsistent, particularly the collar with stripes is more obvious, and the degree of automation is lower.
Disclosure of Invention
In order to overcome the technical defects in the prior art, the invention provides the round collar sewing machine which can realize automatic feeding, enables the lapel to be positioned at the same set position, is convenient to connect, and can finish collar cloth before entering a machine needle in the sewing operation process, thereby ensuring that the collar cloth is tidy and not wrinkled and ensuring the sewing quality of a garment body and the collar cloth.
The technical scheme adopted by the invention is as follows:
The round collar sewing machine comprises a sewing machine set arranged on a working table plate, wherein a needle is arranged at the left end of the sewing machine set, the round collar sewing machine further comprises an upper collar device which is arranged on the working table plate and is close to the sewing device, and a sewing auxiliary device which is arranged on the upper collar device, collar cloth is sleeved on the upper collar device at the upper collar stage, a lapel position is enabled to run at the same position, and after the collar cloth is arranged by the sewing auxiliary device at the sewing stage, the needle is fed into the round collar cloth, and the whole circle sewing of the collar cloth and a clothing body is completed.
Preferably, the collar feeding device comprises a driving wheel set, a driven wheel set and a tensioning wheel set, wherein the driving wheel set is arranged at the front side of the sewing machine set, the central shaft of a driving wheel of the driving wheel set is fixed, the tensioning wheel set is arranged below the driving wheel set, the central shaft of a tensioning wheel of the tensioning wheel set rotates on the circumference with a fixed radius to have a collar feeding working position and a sewing working position, the driven wheel set is arranged at the rear side of the sewing machine set, the central shaft of a driven wheel of the driven wheel set can move back and forth to have the collar feeding working position and the sewing working position, a power-off delay circuit triggered by the lapel position of collar cloth and used for stopping the lapel position at the same sewing starting position is arranged on the driving wheel set, and the sewing auxiliary device is arranged at one side of the driving wheel set, facing the needle.
Preferably, the driving wheel group comprises a mounting seat, a driving wheel arranged at the top of the mounting seat through a second connecting seat and a driving motor arranged at the top of the mounting seat through a first connecting seat and used for driving the driving wheel to rotate around a self-shaft, the driving wheel consists of a conical part and a cylindrical part, and the mounting seat is fixedly connected with the working table plate; the power-off time-delay circuit comprises a micro switch, the main body of the micro switch is arranged on the first connecting seat, the lever fulcrum of the micro switch is rotationally connected on the second connecting seat and connected with the first tension spring on the second connecting seat, the lever sensing end of the micro switch extends to the lower part of the cylindrical part of the driving wheel to form a cloth feeding gap between the sensing end and the driving wheel, and the cloth feeding gap is adjusted to be smaller than the thickness of the lapel position of the collar cloth and larger than the thickness of other positions of the collar cloth.
Further, a limiting flange is arranged on the cylindrical part corresponding to the needle position, and the protruding height of the limiting flange is smaller than the thickness of the lapel of the collar cloth.
Preferably, the tensioning wheel group comprises a tensioning wheel, an L-shaped swing rod and a rotary cylinder, the rotary cylinder is fixedly arranged on the mounting seat, one end of the L-shaped swing rod is fixedly connected with a rotary shaft of the rotary cylinder, the other end of the L-shaped swing rod is rotationally connected with the tensioning wheel, and the upper collar working position of the tensioning wheel is located below the driving wheel and is located in a collar-feeding inner ring in the collar-feeding process.
Preferably, the driven wheel group comprises a driven wheel, a sliding plate, a guide rail and a first air cylinder, wherein the guide rail is fixedly arranged on the working table plate and is perpendicular to the front and rear direction of the central shaft of the driving wheel, the sliding plate is vertically arranged, the bottom end of the sliding plate is in sliding fit with the guide rail through a sliding block, the first air cylinder is fixedly arranged at the top of the sliding plate, the driven wheel is fixedly arranged on one side of the sliding plate, facing the driving wheel group, of the driven wheel, and the cloth inlet end of the driven wheel is lower than the cloth outlet end of the driving wheel.
Preferably, the sewing auxiliary device comprises a support flat plate, the support flat plate is fixedly arranged on the upper collar device in front of the needle, a second air cylinder is fixedly arranged on the right side of the bottom of the support flat plate, the tail end of a piston rod of the second air cylinder is fixedly connected with a second L-shaped plate, and a strip hole parallel to the extending direction of the second air cylinder is formed in the support flat plate; the left side of the top surface of the supporting flat plate is fixedly provided with an introduction sheet, and a gap is reserved between the introduction sheet and the initial position of the inserting sheet; the utility model discloses a support flat board top surface middle part from bottom to top has superimposed in proper order first backing plate, inserted sheet, second backing plate and preforming and pass preforming, second backing plate, inserted sheet, first backing plate, support flat board and second L template in proper order from last to down through the fastener and be in the same place, leave enough first space that holds the neck cloth lower part between the left end of inserted sheet and the support flat board, leave enough second space that holds the neck cloth upper plate between the left end of preforming and the inserted sheet, the width of preforming relative second backing plate left convex is less than the width of inserting sheet relative second backing plate left convex.
Further, the position of the support flat plate, which is connected with the second air cylinder, is provided with a strip-shaped hole, the position of the insert sheet, which is connected with the second backing plate, is also provided with a strip-shaped hole, and the position of the support flat plate, which is connected with the guide-in sheet, is also provided with a strip-shaped hole.
Further, the auxiliary device is made up still includes rotary piece, response piece, measuring rod and photoelectric switch, rotary piece plane rotation sets up the right-hand member at the second backing plate, the right-hand member fixed connection of measuring rod is on the rotary piece and left end level extends to the positive front position department of inserted sheet left end thickness wall left side, photoelectric switch fixed mounting is in supporting dull and stereotyped bottom front side, response piece fixed mounting is on the rotary piece and its one end is inserted sheet and rotary piece forward protruding, be connected with the second extension spring between the other end of response piece and the right-hand member of second backing plate.
Further, the sewing auxiliary device also comprises a displacement sensor which is arranged corresponding to the collar cloth and used for detecting that the collar cloth above is static or moving, and the displacement sensor is fixedly arranged on a supporting flat plate on the right side of the leading-in sheet.
The invention has the beneficial effects that:
1. the collar feeding device comprises a driving wheel set, a driven wheel set and a tensioning wheel set, wherein the central shaft of the driving wheel set is fixed, the driven wheel of the driven wheel set can reciprocate back and forth between a collar feeding working rear position and a sewing working front position, the tensioning wheel of the tensioning wheel set can reciprocate circumferentially between the collar feeding working rear position and the sewing working front position, the structural change of the collar feeding device in a collar feeding stage and a garment body sewing stage is realized, and the driving requirements in different stages are met more specifically: the collar cloth in the collar feeding stage is tightly sleeved on the driving wheel and the driven wheel, the tensioning wheel is positioned on the inner ring of the collar cloth and does not participate in transmission, and the collar feeding is realized by utilizing the rotation of the driving wheel around the self-axis and the guiding action of the conical part of the driving wheel; before sewing, the driven wheel and the tensioning wheel are switched to the sewing working positions, the collar cloth is tensioned and sleeved on the driving wheel, the driven wheel and the tensioning wheel, and the sewing machine is utilized to provide power by the self-provided cloth feeding gear to complete the sewing of the garment body and the collar cloth.
2. According to the invention, the micro switch is arranged below the cylindrical part of the driving wheel, the collar cloth passes through the cloth feeding gap between the micro switch and the driving wheel in the collar feeding process, and the characteristics that the thickness of the lapel cloth at the port is larger than that of other positions of the collar cloth are utilized, when the lapel cloth is operated to the cloth feeding gap, the micro switch is touched to act, then the power-off delay circuit is started to continue to operate in a delayed mode until the lapel cloth is operated to the set position, so that the starting sewing position of each lapel cloth is ensured to be consistent.
3. The invention also arranges a displacement sensor below the collar cloth which is in place after being led up, and the collar cloth is detected to be static or moving through the displacement sensor, and the driven wheel and the tensioning wheel are automatically switched to the sewing working position after being led up in place, so that the efficiency is better compared with the manual switching.
4. The invention also comprises a sewing auxiliary device which acts with the collar cloth in advance after the collar is in place and before sewing, and then the collar cloth before entering the machine needle is tidied in the sewing operation process, including inserting the inserting sheet into the interlayer of the collar cloth and pressing the upper piece of the collar cloth to smooth, thereby ensuring the tidy and non-wrinkling of the collar cloth and ensuring the sewing quality of the clothing body and the collar cloth. Simultaneously, make auxiliary device still including inserting collar cloth intermediate layer's measuring staff, when the lapel position is moved again to touching the measuring staff, then make the response piece action and leave photoelectric switch's response scope for second cylinder withdrawal drives inserted sheet, preforming and measuring staff and leaves collar cloth, lets the lapel position continue to move to the needle and can accomplish the work of making up of whole circle. In a word, the sewing auxiliary device can finish the upper and lower pieces of the collar cloth without affecting the whole circle of sewing.
5. The invention can replace manual collar feeding, realize automatic collar feeding, facilitate connection, and finish the collar cloth before the collar cloth is sewn into a needle, thereby ensuring consistent sewing effect and higher automation degree.
Drawings
FIG. 1 is a schematic view of the split structure of the round collar sewing machine of the present invention.
Fig. 2 is a perspective view showing a partially assembled state of the round collar sewing machine of the present invention.
FIG. 3 is a perspective view showing the assembled state of the driving wheel set, the tensioning wheel set and the sewing auxiliary device.
Fig. 4 is a perspective view of the assembled state of the driving wheel set, the tensioning wheel set and the sewing auxiliary device.
Fig. 5 is a schematic diagram of the installation structure of the micro switch and the driving wheel of the present invention.
Fig. 6 is a schematic diagram of a split structure of the driving wheel set and the tensioning wheel set of the present invention.
FIG. 7 is a schematic view showing a split structure of the sewing auxiliary device of the present invention.
FIG. 8 is a schematic view of the bottom surface structure of the tablet according to the present utility model.
Figure 9 is a cross-section of a tablet of the present utility model at a roller.
Fig. 10 is a schematic view of the structure of the driven wheel set of the present invention.
Fig. 11 is a schematic diagram of a split structure of the driven wheel set of the present invention.
FIG. 12 is a diagram illustrating an exemplary power down delay circuit according to the present invention.
Reference numerals illustrate:
100. A sewing machine set; 101. a tapered portion; 102. a cylindrical portion; 103. a limit flange; 200. a work platen; 10. a driving wheel set; 11. a driving wheel; 12. a driving motor; 13. a micro-switch; 130. a lever; 14. a first connection base; 15. a second connecting seat; 16. a first tension spring; 17. a base; 18. turning over the seat; 19. an arc-shaped plate; 20. a driven wheel group; 21. driven wheel; 22. a first cylinder; 23. a sliding plate; 24. a guide rail; 30. a tensioning wheel set; 31. a tensioning wheel; 32. a rotary cylinder; 33. l-shaped swing rod; 40. a support plate; 41. an introduction sheet; 42. a second cylinder; 43. a first backing plate; 44. inserting sheets; 45. a second backing plate; 46. tabletting; 47. a rotary piece; 48. an induction piece; 49. a detection rod; 480. a second tension spring; 51. an optoelectronic switch; 52. a displacement sensor; 61. a horizontal axis; 62. a roller; 63. a gland; 64. a compression spring; 65. a chip suction cavity; 66. suction inlet.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
As shown in fig. 1 to 9, the present embodiment provides a round collar sewing machine, comprising a frame, a sewing machine set 100, a collar feeding device and a sewing auxiliary device, wherein the frame comprises a work platen 200, the sewing machine set 100 is mounted on the work platen 200 for finishing the sewing work of collar cloth and a clothing body, the collar feeding device is mounted on the work platen 200 and is arranged close to the sewing machine set 100 for finishing the automatic collar feeding work, and the sewing auxiliary device is mounted on the collar feeding device and acts with the collar cloth before sewing to keep the collar cloth neat and beautiful in the sewing process of the collar cloth and the clothing body. The collar cloth of the embodiment needs to be folded and sewn together to form a lapel position before being put on a machine.
In this embodiment, the sewing machine set 100 may be a conventional sewing machine, and will not be described herein. For convenience of description, in this embodiment, the side with the needle of the sewing machine set 100 is set to be left, the direction of the collar cloth going in and out of the needle during sewing is the front-back direction, and the side after sewing is completed by the needle is the back direction, whereas the side not yet entering the needle is the front direction.
In this embodiment, the collar device includes a driving wheel set 10, a driven wheel set 20 and a tensioning wheel set 30, wherein the driving wheel set 10 is installed at the front side of the sewing machine set 100 and the central shaft of the driving wheel 11 is fixed, the tensioning wheel set 30 is installed below the driving wheel set 10 and the central shaft of the tensioning wheel 31 rotates on a circumference with a fixed radius to have a collar working position and a sewing working position, and the driven wheel set 20 is installed at the rear side of the sewing machine set 100 and the central shaft of the driven wheel 21 can move back and forth to have a collar working position and a sewing working position. Preferably the central axis of the driven wheel 21 moves horizontally back and forth.
The driving wheel set 10 comprises a driving wheel 11, a mounting seat, a micro-switch 13 and a driving motor 12, wherein the mounting seat is fixedly arranged on a working table plate 200, the driving motor 12 is arranged on one side of the top of the mounting seat through a first connecting seat 14, the driving wheel 11 is horizontally arranged on the other side of the top of the mounting seat through a second connecting seat 15 and is driven by the driving motor 12 to rotate around a self-axis, the main body of the micro-switch 13 is arranged on the first connecting seat 14, a lever 130 fulcrum of the micro-switch 13 is rotationally connected on the second connecting seat 15 and is connected with a first tension spring 16 on the second connecting seat 15, the sensing end of the lever 130 of the micro-switch 13 extends to the position below a cylindrical part 102 of the driving wheel 11 to form a cloth running gap between the sensing end and the driving wheel 11, and the cloth running gap is adjusted to be smaller than the thickness of a lapel position of collar cloth and larger than the thickness of other positions of collar cloth.
The micro switch 13, the driving motor 12 and other auxiliary electrical elements form a power-off delay circuit, preferably the power-off delay circuit further comprises a resistor, a capacitor and a Darlington tube, the C end of the Darlington tube is electrically connected with the cathode of the driving motor 12, the B end of the Darlington tube is grounded through the resistor and the capacitor in sequence, the E end of the Darlington tube is grounded, the public end of the resistor and the capacitor is connected with the anode of the driving motor 12 and a power supply through the micro switch 13, as shown in fig. 10, the delay time of continuous operation after the micro switch 13 touches the lapel position can be calculated according to the rotating speed of the driving motor 12 and the distance of the induction end of the micro switch 13 to the optimal sewing initial position of the lapel position, and the delay time is met by giving corresponding values of the resistor and the capacitor.
In order to adjust the cloth feeding gap between the sensing end of the micro switch 13 and the driving wheel 11 according to the thickness of the processed collar cloth, the mounting seat of the embodiment is provided with a base 17 and a turnover seat 18, the base 17 is preferably a channel steel and is fixedly arranged on the workbench plate 200 through a fastener, the turnover seat 18 is rotatably arranged at the top of the base 17 back and forth and is kept in a fixed state through the fastener, and the driving wheel 11, the micro switch 13 and the driving motor 12 are positioned at the top of the turnover seat 18. In addition, in order to ensure the support stability of the turnover seat 18, an arc plate 19 is fixedly installed on the base 17 of the embodiment, and the bottom end of the turnover seat 18 is rotationally matched with the arc plate 19. In addition, for the height of being convenient for adjust the mount pad and front and back control mounted position, base 17 is including the U type splint, fixed dull and stereotyped, the fixed riser that are used for centre gripping work platen, be equipped with the bar hole of major axis in the fore-and-aft direction on the fixed dull and stereotyped, U type splint and fixed riser respectively through fastener fixed mounting on the corresponding side of fixed dull and stereotyped, upset seat 18 is installed at fixed riser top and is established to the bar hole of major axis in the upper and lower direction with upset seat 18 junction, further can press from both sides the dress locking steel sheet in one side of fixed riser.
The driving wheel 11 is composed of a conical portion 101 and a cylindrical portion 102, wherein the cylindrical portion 102 is close to the second connecting seat 15, and the conical portion 101 is far away from the second connecting seat 15. In order to ensure that the driving wheel 11 can drive the collar cloth to run, the driving wheel 11 in this embodiment is made of rubber.
The tensioning wheel set 30 comprises a tensioning wheel 31, an L-shaped swing rod 33 and a rotary cylinder 32, the rotary cylinder 32 is fixedly arranged on the turning seat 18, one end of the L-shaped swing rod 33 is fixedly connected with a rotary shaft of the rotary cylinder 32, the other end of the L-shaped swing rod 33 is rotationally connected with the tensioning wheel 31, the tensioning wheel 31 is driven to circularly reciprocate around the rotary shaft of the rotary cylinder 32 between an upper collar working position and a sewing working position through the rotary cylinder 32, the upper collar working position of the tensioning wheel 31 is located below the rear of the cylindrical portion 102 of the driving wheel 11, and the sewing working position of the tensioning wheel 31 is located below the front of the cylindrical portion 102 of the driving wheel 11.
The driven wheel group 20 comprises a driven wheel 21, a sliding plate 23, a guide rail 24 and a first cylinder 22, wherein the guide rail 24 is fixedly arranged on a working table plate 200 through angle steel and is vertical to the central shaft of the driving wheel and is arranged front and back, the sliding plate 23 is vertically arranged, the bottom end of the sliding plate is in sliding fit with the guide rail 24 through a sliding block, the first cylinder 22 is fixedly arranged at the top of the sliding plate 23, the driven wheel 21 is fixedly arranged on one side of the sliding plate 23, which faces the driving wheel group 10, through the mounting plate, the driven wheel 21 is driven to linearly reciprocate between an upper-collar working position and a sewing working position through the first cylinder 22, and the upper-collar working position of the driven wheel 21 is positioned at the rear position and the sewing working position is positioned at the front position. The central axis of the driven wheel 21 is parallel to the central axis of the driving wheel 11, and the cloth feeding end of the driven wheel 21 is lower than the cloth discharging end of the driving wheel 11.
In addition, the driven wheel 21 of this embodiment adopts the straight roller, further in order to avoid the collar cloth from going wrong about on the driven wheel 21, guarantee that the line between collar cloth on the driven wheel 21 and collar cloth on the driving wheel 11 is exactly in the conveying line of the work feed gear in the course of making up, still can set up the spacing ring on the driven wheel 21, the mounted position of spacing ring is adjusted according to collar cloth width suitable. Because the position of the needle is unchanged, the sewing edges of collar cloth with different widths are all at the same position, the right end of the cylindrical part 102 of the driving wheel 11 is provided with a limit flange 103, and the limit flange 103 corresponds to the needle front and back and the outer convex height is smaller than the lapel position thickness of the collar cloth.
The air inlet pipe of the first air cylinder 22 and the air inlet pipe of the rotary air cylinder 32 are connected together through a split three-way valve, so that the driven wheel 21 and the tensioning wheel 31 synchronously move to the sewing working position. The air outlet pipe of the first air cylinder 22 and the air outlet pipe of the rotary air cylinder 32 are connected together through a converging three-way valve, so that the driven wheel 21 and the tensioning wheel 31 synchronously act to the upper collar working position. In the collar working process, the driven wheel 21 and the tension wheel 31 are switched to be in collar working positions, the collar cloth is sleeved on the driving wheel 11 and the driven wheel 21, the tension wheel 31 is positioned in the collar cloth inner ring, and the collar cloth is driven to run through the rotation and friction of the driving wheel 21; in the sewing process, the driven wheel 21 and the tension wheel 31 are switched to be in the sewing position, the collar cloth and the garment body are sleeved on the driving wheel 11, the driven wheel 21 and the tension wheel 31 to form a triangle transmission relation, at the moment, the resistance of the driving wheel 11 to the collar cloth can be reduced, the collar cloth and the garment body are driven to run through the cloth feeding gear of the sewing machine set 100, and the transmission requirements in the upper collar and the sewing process are met through the position change of the driven wheel 11 and the tension wheel 31.
In this embodiment, the auxiliary device for sewing includes a support plate 40, a first pad 43, an inserting sheet 44, a second pad 45, a pressing sheet 46, a guiding sheet 41, an induction sheet 48, a rotating sheet 47, a detecting rod 49, a photoelectric switch 51 and a second air cylinder 42, the support plate 40 is fixedly installed on the first connecting seat 14 and the second connecting seat 15 of the driving wheel set 10 through a first L-shaped plate, the support plane of the support plate 40 and the cloth outlet end of the cylindrical part 102 of the driving wheel 11 are at the same horizontal height, the guiding sheet 41 is fixedly installed on the left side of the top surface of the support plate 40 through screws, the top surface of the guiding sheet 41 is provided with a cloth guiding surface inclined upwards from left to right, the cylinder body part of the second air cylinder 42 is fixedly installed on the right side of the bottom of the support plate 40 through bolts and nuts, the piston rod end of the second air cylinder 42 is fixedly connected with a second L-shaped plate, and the first pad 43, the inserting sheet 44, the second pad 45 and the pressing sheet 46 sequentially pass through the middle part of the top surface of the support plate 40 from bottom to bottom and sequentially through fasteners from top to bottom, the second pad 45 and the pressing sheet 46 are sequentially driven by the fastener to top to bottom to reciprocate along the second pad 42, and the second pad 42 is provided with the second cylinder rod and the second pad 42 is conveniently driven to reciprocate along the direction. A first space enough for accommodating the lower piece of collar cloth is reserved between the left end of the inserting piece 44 and the supporting flat plate 40, a second space enough for accommodating the upper piece of collar cloth is reserved between the left end of the pressing piece 46 and the inserting piece 44, the inserting piece 44 is lifted by a certain height on the first base plate 43 so that the inserting piece 44 smoothly enters a middle layer formed by folding collar cloth, the pressing piece 46 is lifted again by the second base plate 45 so that the upper piece of collar cloth is smooth and orderly, the width of the pressing piece 46 protruding leftwards relative to the second base plate 45 is smaller than the width of the inserting piece 44 protruding leftwards relative to the second base plate 45, the position of the inserting piece 44 is set to be the initial position of the inserting piece 44 after the second cylinder 42 is retracted, and the collar cloth is positioned between the initial positions of the leading-in piece 41 and the inserting piece 44 before the second cylinder 42 is not extended.
In order to adjust the stroke of the insert 44 and the mounting position of the lead-in piece 41 according to the width of the collar, and ensure that the positions of the sensing piece 48 and the pressing piece 46 stopped in the sewing process are consistent, the position of the support flat plate 40 connected with the second air cylinder 42 in this embodiment is set to be a bar hole, the position of the insert 44 connected with the second backing plate 45 is also set to be a bar hole, and the position of the support flat plate 40 connected with the lead-in piece 41 is also set to be a bar hole, so that the mounting positions of the second air cylinder 42 and the lead-in piece 41 in the left-right direction of the support flat plate 40 are conveniently adjusted according to the requirement, and the mounting positions of the second backing plate 45 and the pressing piece 46 thereon in the left-right direction of the insert 44 are adjusted. To ensure that the insert 44 is inserted smoothly into the collar cloth interlayer, the left end of the insert 44 is provided with a flat inclined surface inclined upward from left to right. For collar cloth of different thickness, the appropriate adjustment of the height can also be achieved by changing the first pad 43 and the second pad 45.
In addition, as shown in fig. 11-12, in order to reduce friction between the pressing piece 46 and the collar cloth upper piece, a mounting through groove is formed at a position of the pressing piece 46 corresponding to the collar cloth upper piece, a horizontal shaft 61 is mounted in the mounting through groove, a long axis of the horizontal shaft 61 is in a left-right direction, a roller 62 is mounted outside the horizontal shaft 61 through a rolling bearing, a bottom end of the roller 62 protrudes downwards relative to a bottom surface of the pressing piece 46, and finishing is achieved through the action of the outer peripheral surface of the roller 62 and the collar cloth upper piece in a sewing process. Further, the gland 63 is installed above the installation through groove, the gland 63 is fixed on the pressing piece 46 by a screw, a compression spring 64 is respectively connected between the gland 63 and two ends of the horizontal shaft 61, and a space is reserved between the gland 63 and the roller 62 below, so that even if the thickness of the collar cloth at different positions is slightly different, the roller 62 can float up and down and keep the arrangement of the collar cloth upper piece according to the thickness change of the collar cloth by using the elasticity of the compression spring 64, and meanwhile, foreign matters are prevented from entering the installation through groove by using the gland 63 so as to influence the normal operation of the roller 62. Still further, the position department that the preforming 46 bottom surface corresponds collar cloth upper segment is equipped with a plurality of sunction inlets, be equipped with in the preforming 46 and inhale bits chamber 65 that are linked together with each sunction inlet, inhale bits chamber 65 and be connected with the vacuum machine through the hose, in the sewing process, smooth collar cloth upper segment through gyro wheel 62 and adsorb away the piece negative pressure on the collar cloth upper segment through sunction inlet, inhale bits chamber 65, avoid sewing back collar cloth and clothing body between have the piece and influence the quality.
The rotary piece 47 is rotatably arranged at the right end of the second base plate 45 through a pin plane, the detection rod 49 is Z-shaped, the right end of the detection rod 49 is fixedly connected to the rotary piece 47, and the left end horizontally extends leftwards to the position right in front of the thickness wall surface of the left end of the inserting piece 44, so that the detection rod 49 is inserted into the interlayer of the collar cloth along with the inserting piece 44 in the sewing process. The sensing piece 48 is fixedly mounted on the rotating piece 47 through bolts, one end of the sensing piece is protruded forwards relative to the inserting piece 44 and the rotating piece 47, the other end of the sensing piece 48 is connected with one end of the second tension spring 480, the other end of the second tension spring 480 is fixedly mounted on the right end of the second backing plate 45 through screws, the photoelectric switch 51 is fixedly mounted on the front side of the bottom of the support flat plate 40 through fasteners and is emitted upwards, so that before the collar cloth is sewn in place, the detecting rod 49 and the inserting piece 44 are inserted into an interlayer of the collar cloth through the second air cylinder 42, the sensing piece 48 is located in the sensing range of the photoelectric switch 51, then the rotating piece 47 is driven to rotate after the left end of the detecting rod 49 contacts with a lapel cloth in the sewing process, the second tension spring 480 is lengthened, meanwhile, the sensing piece 48 leaves the sensing range of the photoelectric switch 51, the second air cylinder 42 is retracted and reset, and the collar cloth is conveyed backwards continuously to complete whole circle sewing of the collar cloth and the body. Of course, the sensing piece 48 and the rotating piece 47 of the present embodiment may be a one-piece structure formed integrally.
The photoelectric switch 51 of the present embodiment functions as: firstly, the extending stroke of the second air cylinder 42 is controlled, and secondly, the second air cylinder is wound back to the contact position with the detection rod 49 at the port position and is contracted in time so as to complete full circle sewing. The sensing piece 48, the rotating piece 47 and the detecting rod 49 are combined on the second base plate 45, so that the collar cloth can be tidied up to the maximum extent, the distance between the current lapel position retracted by the sewing auxiliary device and the needle is shortened, and the occurrence probability of collar cloth wrinkles is reduced.
In order to realize that the driven wheel 21 and the tensioning wheel 31 can be automatically switched to the sewing working position after the upper leading-in position, the embodiment further comprises a displacement sensor 52 which is arranged corresponding to the collar cloth and used for detecting that the collar cloth above is static or moving, preferably the displacement sensor 52 is fixedly arranged on the supporting flat plate 40 on the right side of the leading-in sheet 41 through screws, the displacement sensor 52 and the photoelectric switch 51 are electrically connected with the signal input end of the PLC controller, the electromagnetic valves are combined on the air inlet pipes of the rotary cylinder 32 and the first cylinder 22, when the collar cloth is not moved any more after the driving motor 12 stops, the displacement sensor 52 sends an upper leading-in signal to the PLC controller, and then the first cylinder 22 is controlled to extend forwards, the rotary cylinder 32 rotates forwards and the second cylinder 42 extends leftwards. Preferably, the photoelectric switch 51 adopts SEMOR01 photoelectric sensors, the displacement sensor 52 adopts CMOS laser displacement sensor LK-H155, and the PLC controller adopts ohm-dragon NJ501-1500. Of course, the first cylinder 22, the rotary cylinder 32, and the second cylinder 42 of the present embodiment may be manually controlled.
In addition, the round collar sewing machine of this embodiment still includes the automatic thread cutting device that is used for cutting off the end of a thread after the whole circle is made up, automatic thread cutting device includes negative pressure machine, line concentration case, wind channel, cutter, the wind channel sets up on sewing machine group 100 and the inlet scoop in wind channel is located the needle rear side, the cutter is installed in inlet scoop department, the other end in wind channel is connected to the line concentration case through the tuber pipe, the air intake of negative pressure machine lets in the line concentration incasement through the pipeline. After the sewing is completed, the thread end is manually closed to the air suction port, and the thread end is sucked into the cutter to be cut off due to the negative pressure suction force.
While the basic principles and main features of the invention and advantages of the invention have been shown and described, it will be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are described in the foregoing description merely illustrate the principles of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents.
Claims (8)
1. The round collar sewing machine comprises a sewing machine set arranged on a working table plate, wherein a needle is arranged at the left end of the sewing machine set, and the round collar sewing machine is characterized by further comprising an upper collar device which is arranged on the working table plate and is close to the sewing device, and a sewing auxiliary device which is arranged on the upper collar device, wherein collar cloth is sleeved on the upper collar device at the upper collar stage and enables a lapel position to run at the same position, and collar cloth is fed into the needle after being arranged by the sewing auxiliary device at the sewing stage, and complete whole circle sewing of the collar cloth and a clothing body is completed;
The upper collar device comprises a driving wheel set, a driven wheel set and a tensioning wheel set, wherein the driving wheel set is arranged at the front side of the sewing machine set, the central shaft of a driving wheel of the driving wheel set is fixed, the tensioning wheel set is arranged below the driving wheel set, the central shaft of a tensioning wheel of the tensioning wheel set rotates on the circumference with a fixed radius and is provided with an upper collar working position and a sewing working position, the driven wheel set is arranged at the rear side of the sewing machine set, the central shaft of a driven wheel of the driven wheel set can move back and forth and is provided with the upper collar working position and the sewing working position, the driving wheel set is provided with a power-off delay circuit which is triggered by the lapel position of collar cloth and is used for stopping the lapel position at the same sewing starting position, and the sewing auxiliary device is arranged at one side of the driving wheel set facing a needle;
The sewing auxiliary device comprises a support flat plate, the support flat plate is fixedly arranged on an upper collar device in front of a needle, a second air cylinder is fixedly arranged on the right side of the bottom of the support flat plate, the tail end of a piston rod of the second air cylinder is fixedly connected with a second L-shaped plate, and a strip hole parallel to the extending direction of the second air cylinder is formed in the support flat plate;
the left side of the top surface of the supporting flat plate is fixedly provided with an introduction sheet, and a gap is reserved between the introduction sheet and the initial position of the inserting sheet;
The utility model discloses a support flat board top surface middle part from bottom to top has superimposed in proper order first backing plate, inserted sheet, second backing plate and preforming and pass preforming, second backing plate, inserted sheet, first backing plate, support flat board and second L template in proper order from last to down through the fastener and be in the same place, leave enough first space that holds the neck cloth lower part between the left end of inserted sheet and the support flat board, leave enough second space that holds the neck cloth upper plate between the left end of preforming and the inserted sheet, the width of preforming relative second backing plate left convex is less than the width of inserting sheet relative second backing plate left convex.
2. The round collar sewing machine of claim 1, wherein the driving wheel set comprises a mounting seat, a driving wheel arranged at the top of the mounting seat through a second connecting seat and a driving motor arranged at the top of the mounting seat through a first connecting seat and used for driving the driving wheel to rotate around a self-shaft, the driving wheel consists of a conical part and a cylindrical part, and the mounting seat is fixedly connected with the working table plate; the power-off time-delay circuit comprises a micro switch, the main body of the micro switch is arranged on the first connecting seat, the lever fulcrum of the micro switch is rotationally connected on the second connecting seat and connected with the first tension spring on the second connecting seat, the lever sensing end of the micro switch extends to the lower part of the cylindrical part of the driving wheel to form a cloth feeding gap between the sensing end and the driving wheel, and the cloth feeding gap is adjusted to be smaller than the thickness of the lapel position of the collar cloth and larger than the thickness of other positions of the collar cloth.
3. The round collar sewing machine of claim 2, wherein a limit flange is provided on the cylindrical portion at a position corresponding to the needle position, and the protruding height of the limit flange is smaller than the lapel thickness of the collar cloth.
4. The round collar sewing machine of claim 2, wherein the tensioning wheel set comprises a tensioning wheel, an L-shaped swing rod and a rotary cylinder, the rotary cylinder is fixedly arranged on the mounting seat, one end of the L-shaped swing rod is fixedly connected with a rotary shaft of the rotary cylinder, the other end of the L-shaped swing rod is rotatably connected with the tensioning wheel, and an upper collar working position of the tensioning wheel is located below the driving wheel and is located in an upper collar process of the cloth collar.
5. The round collar sewing machine of claim 1, wherein the driven wheel group comprises a driven wheel, a sliding plate, a guide rail and a first air cylinder, the guide rail is fixedly installed on the working platen and is arranged in the front-rear direction perpendicular to the central shaft of the driving wheel, the sliding plate is vertically arranged, the bottom end of the sliding plate is in sliding fit with the guide rail through a sliding block, the first air cylinder is fixedly installed at the top of the sliding plate, the driven wheel is fixedly installed on one side of the sliding plate facing the driving wheel group through an installation plate, and the cloth inlet end of the driven wheel is lower than the cloth outlet end of the driving wheel.
6. The round collar sewing machine of claim 1, wherein the support plate is provided with a bar-shaped hole at a position where the support plate is connected to the second cylinder, the insert is provided with a bar-shaped hole at a position where the insert is connected to the second pad, and the support plate is provided with a bar-shaped hole at a position where the support plate is connected to the guide-in piece.
7. The round collar sewing machine of claim 1, further comprising a rotary piece, an induction piece, a detection rod and a photoelectric switch, wherein the rotary piece is arranged at the right end of the second base plate in a plane rotation mode, the right end of the detection rod is fixedly connected to the rotary piece, the left end of the detection rod horizontally extends leftwards to a position right ahead of the thickness wall surface of the left end of the insertion piece, the photoelectric switch is fixedly arranged at the front side of the bottom of the support plate, the induction piece is fixedly arranged on the rotary piece, one end of the induction piece protrudes forwards relative to the insertion piece and the rotary piece, and a second tension spring is connected between the other end of the induction piece and the right end of the second base plate.
8. The round-neck sewing machine according to claim 1, further comprising a displacement sensor provided corresponding to the neck cloth for detecting that the upper neck cloth is stationary or moving, the displacement sensor being fixedly installed on a support plate on the right side of the introduction piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811170514.6A CN108950898B (en) | 2018-10-09 | 2018-10-09 | Round collar sewing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811170514.6A CN108950898B (en) | 2018-10-09 | 2018-10-09 | Round collar sewing machine |
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| CN108950898A CN108950898A (en) | 2018-12-07 |
| CN108950898B true CN108950898B (en) | 2024-06-07 |
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| CN201811170514.6A Active CN108950898B (en) | 2018-10-09 | 2018-10-09 | Round collar sewing machine |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111058200A (en) * | 2019-06-20 | 2020-04-24 | 常州智谷机电科技有限公司 | Circular drum lap-laying machine |
| CN112709015B (en) * | 2020-12-23 | 2022-07-08 | 诸暨市惠田机电制造有限公司 | Sewing equipment for circular ring products |
| CN113481665A (en) * | 2021-06-30 | 2021-10-08 | 泉州誉财自动化设备有限责任公司 | Round collar sewing machine |
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