CN115182116A - Low-vibration multi-needle embroidery machine head - Google Patents
Low-vibration multi-needle embroidery machine head Download PDFInfo
- Publication number
- CN115182116A CN115182116A CN202210975530.2A CN202210975530A CN115182116A CN 115182116 A CN115182116 A CN 115182116A CN 202210975530 A CN202210975530 A CN 202210975530A CN 115182116 A CN115182116 A CN 115182116A
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- driving
- presser foot
- needle bar
- shaft
- thread take
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
- D05C11/02—Machine needles
- D05C11/06—Needle-driving or control mechanisms
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
- D05C11/02—Machine needles
- D05C11/04—Arrangements for fastening or inserting in bars or carriers
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C9/00—Appliances for holding or feeding the base fabric in embroidering machines
- D05C9/20—Movement of the base fabric controlled by the presser feet; Driving arrangements therefor
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides a low-vibration multi-needle embroidery machine head, and belongs to the technical field of machinery. The low-vibration multi-needle embroidery machine head comprises a main shaft, an upper shaft and a plurality of groups of embroidery machine head mechanisms, wherein the upper shaft is in transmission connection with the main shaft, and the upper shaft is in transmission connection with each embroidery machine head mechanism through a gear transmission mechanism. The left driving shaft and the right driving shaft which are opposite in rotation direction are arranged in each embroidery machine head mechanism, the left and right thread taking-up driving structures, the left and right needle bar driving structures and the left and right presser foot driving structures which are arranged in mirror symmetry are driven to synchronously work, and in the working process that the driving structures respectively rotate forwards and backwards under the driving of the left driving shaft and the right driving shaft, acting forces are balanced with each other, so that vibration and noise can be effectively reduced.
Description
Technical Field
The invention belongs to the technical field of machinery, and relates to an embroidery machine, in particular to a low-vibration multi-needle embroidery machine head.
Background
With the advancement of science and technology, computerized embroidery machines have become the main mechanical equipment in the embroidery industry, and the machine head of the embroidery machine is an important structure of the embroidery machine. In order to improve the embroidery efficiency, the embroidery machine head on the market usually has dozens or even hundreds of needle bars, and during the work, the lifting and the thread picking work of each needle bar and presser foot are driven by the same driving mechanism, and the working frequency and the direction of the driving mechanism are consistent, and when the number is more, the resonance effect influences more, the whole machine head vibrates greatly, influences the stability of the embroidery machine, and the noise is large.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a low-vibration multi-needle embroidery machine head.
The purpose of the invention can be realized by the following technical scheme: the low-vibration multi-needle embroidery machine head is characterized by comprising a shell, a left driving shaft and a right driving shaft, wherein the left driving shaft and the right driving shaft are symmetrically arranged, and the rotating directions of the right driving shaft of the left driving shaft are opposite.
In the above-mentioned low-vibration multi-needle embroidery machine head, the gear transmission mechanism includes a driving shaft gear box, a first conical gear, a second conical gear, a third conical gear and a fourth conical gear, the first conical gear and the second conical gear are reversely and fixedly connected to the upper shaft, the third conical gear is fixedly connected to the left driving shaft, the third conical gear is in meshing transmission connection with the first conical gear, the fourth conical gear is fixedly connected to the right driving shaft, and the fourth conical gear is in meshing transmission connection with the second conical gear.
In the low-vibration multi-needle embroidery machine head, the upper shaft, the left driving shaft and the left driving shaft are inserted into the driving shaft gear box, the left driving shaft and the right driving shaft are parallel and arranged side by side, the left driving shaft and the right driving shaft are perpendicular to the upper shaft, the third bevel gear is connected to the end portion, located inside the driving shaft gear box, of the left driving shaft, the end face bearing I is arranged between the third bevel gear and the driving shaft gear box, the fourth bevel gear is connected to the end portion, located inside the driving shaft gear box, of the right driving shaft, and the end face bearing II is arranged between the fourth bevel gear and the driving shaft gear box.
In the low-vibration multi-needle embroidery machine head, the left driving shaft is connected with a left thread take-up driving structure, a left needle rod driving structure and a left presser foot driving structure, the right driving shaft is connected with a right thread take-up driving structure, a right needle rod driving structure and a right presser foot driving structure, the left thread take-up driving structure and the right thread take-up driving structure are symmetrically arranged, the left needle rod driving structure and the right needle rod driving structure are symmetrically arranged, and the left presser foot driving structure and the right presser foot driving structure are symmetrically arranged.
In the aforesaid multi-needle embroidery machine aircraft nose of low vibration, left side take-up drive structure includes consecutive left take-up cam, left take-up actuating lever, left take-up driven lever, left take-up connecting rod and left take-up drive seat, right take-up drive structure includes consecutive right take-up cam, right take-up actuating lever, right take-up driven lever, right take-up connecting rod and right take-up drive seat, left side take-up cam and right take-up cam are mirror symmetry and set up, left side take-up actuating lever and right take-up actuating lever are mirror symmetry and set up, left side take-up driven lever and right take-up driven lever are mirror symmetry and set up, left side take-up connecting rod and right take-up connecting rod set up with being mirror symmetry, left side take-up drive seat sliding connection is on left take-up guide axle, left side take-up drive seat sliding connection is on right take-up guide axle, left side take-up guide axle and right take-up guide axle connect together on same take-up fixing base, the take-up fixing base links firmly on the casing.
In foretell low-vibration's multi-needle embroidery machine aircraft nose, left side drive shaft is at the center of left take-up cam, left side take-up cam has the left circular guide ring groove of eccentric settings, the one end of left side take-up actuating lever is through first left drive pin and left take-up drive bearing sliding connection in left circular guide ring groove, the other end of left side take-up actuating lever and the one end of left take-up driven lever are connected and are connected on the casing through second left drive pin jointly, the other end of left side take-up driven lever is connected with the one end of left take-up connecting rod through third left drive pin, the other end of left side take-up connecting rod is connected on left take-up drive seat through fourth left drive pin, right side take-up cam has the right circular guide ring groove of eccentric settings, right circular guide ring groove and left circular guide ring groove symmetry set up, the one end of right take-up actuating lever is connected on the right circular guide ring groove through first right drive pin and right take-up drive bearing sliding connection in right drive pin through first right drive pin, the other end of right take-up actuating lever and right take-up drive pin are connected on the right take-up drive ring groove through fourth drive pin, the other end of right take-up drive lever and right take-up drive pin are connected on the casing through second drive ring groove.
In foretell low-vibration's multi-needle embroidery machine aircraft nose, left needle bar drive structure includes left needle bar drive cam, left calibrated scale, left needle bar drive connecting rod and left needle bar drive body, left drive shaft connection is at the center of left calibrated scale, left needle bar drive cam links firmly in left drive shaft, just left needle bar drive cam links firmly on the back wall of left calibrated scale, the one end of left needle bar drive connecting rod articulates on the eccentric position of left calibrated scale, and the other end of left needle bar drive connecting rod articulates on left needle bar drive body, right needle bar drive structure includes right needle bar drive cam, right calibrated scale, right needle bar drive connecting rod and right needle bar drive connecting rod, left drive shaft connection is at the center of left calibrated scale, right needle bar drive cam links firmly in left drive shaft, just right needle bar drive cam links firmly on the back wall of right calibrated scale, the one end of right needle bar drive connecting rod articulates on the eccentric position of right calibrated scale, and the other end of right needle bar drive connecting rod articulates on right needle bar, left needle bar drive cam and right needle bar drive cam are the dial symmetry setting, left needle bar drive cam and right needle bar drive the mirror image.
In the above-mentioned low-vibration multiple-needle embroidery machine head, the left needle bar drive cam has a left needle bar drive shaft inserted through the 0 ° thread of the left dial, the upper end of the left needle bar drive link is connected to the left needle bar drive shaft through a first left needle bar bearing, the lower end of the left needle bar drive link is connected to the left needle bar drive body through a left needle bar positioning pin and a second left needle bar bearing, the right needle bar drive cam has a right needle bar drive shaft inserted through the 0 ° thread of the right dial, the upper end of the right needle bar drive link is connected to the right needle bar drive shaft through a first right needle bar bearing, and the lower end of the right needle bar drive link is connected to the right needle bar drive body through a right needle bar positioning pin and a second right needle bar bearing.
In foretell low-vibration's multi-needle embroidery machine aircraft nose, left needle bar driving body's the left and right ends sliding connection respectively is on first guiding axle and second guiding axle, and left needle bar driving body's the left and right ends is connected with first needle bar subassembly and second needle bar subassembly respectively, right needle bar driving body's the left and right ends sliding connection respectively is on third guiding axle and fourth guiding axle, and right needle bar driving body's the left and right ends is connected with third needle bar subassembly and fourth needle bar subassembly respectively, first needle bar subassembly, second needle bar subassembly, third needle bar subassembly and fourth needle bar subassembly are synchronous to go up and down.
In the low-vibration multi-needle embroidery machine head, the left presser foot driving structure comprises a left presser foot driving cam, a left presser foot large connecting rod, a left presser foot three-eye connecting rod and a left presser foot small connecting rod which are sequentially connected, the left presser foot small connecting rod is connected to the left presser foot driving body, the right presser foot driving structure comprises a right presser foot driving cam, a right presser foot large connecting rod, a right presser foot three-eye connecting rod and a right presser foot small connecting rod which are sequentially connected, the right presser foot small connecting rod is connected to the right presser foot driving body, the left presser foot driving cam and the right presser foot driving cam are arranged in mirror symmetry, the left presser foot large connecting rod and the right presser foot large connecting rod are arranged in mirror symmetry, the left presser foot three-eye connecting rod and the right presser foot three-eye connecting rod are arranged in mirror symmetry, and the left presser foot small connecting rod and the right presser foot small connecting rod are arranged in mirror symmetry.
In the above-mentioned low-vibration multi-needle embroidery machine head, the left driving shaft is connected to the eccentric position of the left presser foot driving cam, the left presser foot driving cam is connected to the left presser foot large connecting rod through a bearing structure, the end of the left presser foot large connecting rod is connected to one end of the left presser foot three-eye connecting rod through a first left presser foot driving pin and a first left presser foot bearing, the middle of the left presser foot three-eye connecting rod is connected to the machine shell through a second left presser foot driving pin and a second left presser foot bearing, the other end of the left presser foot three-eye connecting rod is connected to one end of the left presser foot small connecting rod through a third left presser foot bearing and a third left presser foot bearing, the other end of the left presser foot small connecting rod is connected to the left presser foot driving body through a fourth left presser foot, the right driving shaft is connected to the eccentric position of the right presser foot driving cam, and the right presser foot large connecting rod are connected through a bearing structure, the end part of the connecting rod of the large right presser foot connecting rod and one end of the right presser foot three-eye connecting rod are connected through a first right presser foot driving pin and a first right presser foot bearing, the middle part of the right presser foot three-eye connecting rod is connected on the machine shell through a second right presser foot driving pin and a second right presser foot bearing, the other end of the right presser foot three-eye connecting rod and one end of the right presser foot small connecting rod are connected through a third right presser foot driving pin and a third right presser foot bearing, the other end of the right presser foot small connecting rod is connected on the right presser foot driving body through a fourth right presser foot driving pin, the left end and the right end of the left presser foot driving body are respectively connected on a first guide shaft and a second guide shaft in a sliding manner, the left end and the right end of the left presser foot driving body are respectively connected on a first presser foot assembly and a second presser foot assembly, the left end and the right end of the right presser foot driving body are respectively connected on a third guide shaft and a fourth guide shaft in a sliding manner, and the left end and the right end of the right presser foot driving body are respectively connected with a third presser foot assembly and a fourth presser foot assembly, and the first presser foot assembly, the second presser foot assembly, the third presser foot assembly and the fourth presser foot assembly synchronously lift.
Compared with the prior art, the invention has the following advantages:
1. the left driving shaft and the right driving shaft which rotate in opposite directions are arranged in each embroidery machine head mechanism, and the left and right thread take-up driving structures, the left and right needle bar driving structures and the left and right presser foot driving structures which are arranged in mirror symmetry are driven to synchronously work, and in the working process that the driving structures respectively rotate forwards and overturns under the driving of the left driving shaft and the right driving shaft, acting forces are balanced with each other, so that vibration and noise can be effectively reduced;
2. the four needle bar assemblies, the corresponding presser foot assemblies and the thread take-up assemblies are arranged in each embroidery machine head mechanism, so that low-vibration work among the four needle bars in the same embroidery machine head mechanism can be effectively realized, and the structure is more compact.
Drawings
Fig. 1 is a schematic view of the mechanism of the present invention.
Fig. 2 is a schematic structural view of the gear transmission mechanism of the present invention.
FIG. 3 is a perspective view of the thread take-up driving mechanism according to the present invention.
FIG. 4 is a front view of the thread take-up drive mechanism of the present invention.
FIG. 5 is a rear view of the thread take-up drive mechanism of the present invention.
Fig. 6 is a schematic perspective view of the needle bar drive mechanism and the presser foot drive mechanism according to the present invention.
Fig. 7 is a front view of the needle bar drive mechanism of the present invention.
Fig. 8 is a rear view of the needle bar drive mechanism of the present invention.
Fig. 9 is a front view of the presser foot drive mechanism of the present invention.
Fig. 10 is a rear view of the presser foot drive mechanism of the present invention.
In the figure, 1, main axis; 2. an upper shaft; 3. an embroidery machine head mechanism; 4. a gear transmission mechanism; 5. a housing; 6. a left drive shaft; 7. a right drive shaft; 8. a drive shaft gear box; 9. a first conical gear; 10. a second conical gear; 11. a third bevel gear; 12. a fourth conical gear; 13. a first end face bearing; 14. a second end face bearing; 15. a left thread take-up cam; 1501. a left circular guide ring groove; 16. a left thread take-up drive lever; 17. a left thread take-up driven lever; 18. a left thread take-up connecting rod; 19. a left thread take-up driving seat; 20. a right thread take-up cam; 2001. a right circular guide ring groove; 21. a right thread take-up drive lever; 22. a right take-up driven lever; 23. a right thread take-up connecting rod; 24. a right thread take-up driving seat; 25. a left thread take-up guide shaft; 26. a right thread take-up guide shaft; 27. a thread take-up fixing seat; 28. a first left drive pin; 29. a left thread take-up drive bearing; 30. a second left drive pin; 31. a third left drive pin; 32. a fourth left drive pin; 33. a first right drive pin; 34. a right thread take-up drive bearing; 35. a second right drive pin; 36. a third right drive pin; 37. a fourth right drive pin; the left needle bar drives the cam; 3801. a left cam main body portion; 3802. a left link portion; 3803. a left needle bar drive shaft; 39. a left dial; 40. the left needle bar drives the connecting rod; 41. a left needle bar drive body; 42. a right needle bar drive cam; 4201. a right cam main body portion; 4202. a right link portion; 4203. a right needle bar drive shaft; 43. a right dial; 44. the right needle rod drives the connecting rod; 45. a right needle bar drive body; 46. a first guide shaft; 47. a second guide shaft; 48. a first needle bar assembly; 49. a second needle bar assembly; 50. a third guide shaft; 51. a fourth guide shaft; 52. a third needle bar assembly; 53. a fourth needle bar assembly; 54. a first left needle bar bearing; 55. a left needle bar positioning pin; 56. a second left needle bar bearing; 57. a first right needle bar bearing; 58. a right needle bar locating pin; 59. a second right needle bar bearing; 60. a first electromagnet driving block; 61. a second electromagnet driving block; 62. a third electromagnet driving block; 63. a fourth electromagnet driving block; 64. a left presser foot drive cam; 65. a left presser foot large connecting rod; 66. a left presser foot three-eye connecting rod; 67. a left presser foot small connecting rod; 68. a left presser foot drive body; 69. the right presser foot drives the cam; 70. a right presser foot large connecting rod; 71. a right presser foot three-eye connecting rod; 72. a right presser foot small connecting rod; 73. a right presser foot drive body; 74. a first left presser foot drive pin; 75. a first left presser foot bearing; 76. a second left presser foot drive pin; 77. a second left presser foot bearing; 78. a third left presser foot drive pin; 79. a third left presser foot bearing; 80. a fourth left presser foot drive pin; 81. a first right presser foot drive pin; 82. a first right presser foot bearing; 83. a second right presser foot drive pin; 84. a second right presser foot bearing; 85. a third right presser foot drive pin; 86. a third right presser foot bearing; 87. a fourth right presser foot drive pin; 88. a first presser foot assembly; 89. a second presser foot assembly; 90. a third presser foot assembly; 91. a fourth presser foot assembly.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Referring to fig. 1, the present embodiment is a low-vibration multi-needle embroidery machine head, including a main shaft 1, an upper shaft 2 and a plurality of groups of embroidery machine head mechanisms 3, the upper shaft 2 is in transmission connection with the main shaft 1 through a transmission belt structure, the upper shaft 2 is in transmission connection with each embroidery machine head mechanism 3 through a gear transmission mechanism 4, each embroidery machine head mechanism 3 includes a housing 5, a left driving shaft 6 and a right driving shaft 7, the left driving shaft 6 and the right driving shaft 7 are symmetrically arranged side by side, and the rotation directions of the right driving shaft 7 of the left driving shaft 6 are opposite. The left driving shaft 6 in this embodiment is connected with a left thread take-up driving structure, a left needle bar driving structure and a left presser foot driving structure, the right driving shaft 7 is connected with a right thread take-up driving structure, a right needle bar driving structure and a right presser foot driving structure, the left thread take-up driving structure and the right thread take-up driving structure are symmetrically arranged, the left needle bar driving structure and the right needle bar driving structure are symmetrically arranged, and the left presser foot driving structure and the right presser foot driving structure are symmetrically arranged.
With reference to fig. 2, the gear transmission mechanism 4 in this embodiment includes a driving shaft gear box 8, a first conical gear 9, a second conical gear 10, a third conical gear 11 and a fourth conical gear 12, the first conical gear 9 and the second conical gear 10 are reversely fixed on the upper shaft 2, the third conical gear 11 is fixed on the left driving shaft 6, the third conical gear 11 is in meshing transmission connection with the first conical gear 9, the fourth conical gear 12 is fixedly connected to the right driving shaft 7, and the fourth conical gear 12 is in meshing transmission connection with the second conical gear 10. The upper shaft 2, left drive axle 6 and left drive axle 6 all alternate on driving shaft gear box 8, left drive axle 6 and right drive axle 7 parallel and set up side by side, and left drive axle 6 and right drive axle 7 all are perpendicular with upper shaft 2, third conical gear 11 is connected at the inside tip that left drive axle 6 is located driving shaft gear box 8, and be provided with end face bearing 13 between third conical gear 11 and the driving shaft gear box 8, fourth conical gear 12 is connected at the inside tip that right drive axle 7 is located driving shaft gear box 8, and be provided with end face bearing two 14 between fourth conical gear 12 and the driving shaft gear box 8, end face bearing 13 and end face bearing two 14 are used for spacing third conical gear 11 and fourth conical gear 12.
With reference to fig. 3-5, the left thread take-up driving structure includes a left thread take-up cam 15, a left thread take-up driving lever 16, a left thread take-up driven lever 17, a left thread take-up connecting lever 18 and a left thread take-up driving seat 19, which are connected in sequence, the right thread take-up driving structure includes a right thread take-up cam 20, a right thread take-up driving lever 21, a right thread take-up driven lever 22, a right thread take-up connecting lever 23 and a right thread take-up driving seat 24, which are connected in sequence, the left thread take-up cam 15 and the right thread take-up cam 20 are arranged in mirror symmetry, the left thread take-up driving lever 16 and the right thread take-up driving lever 21 are arranged in mirror symmetry, the left thread take-up driven lever 17 and the right thread take-up driven lever 22 are arranged in mirror symmetry, the left thread take-up connecting lever 18 and the right thread take-up connecting lever 23 are arranged in mirror symmetry, the left thread take-up driving seat 19 is slidably connected to the left thread take-up guiding shaft 25, the left thread take-up driving seat 19 is slidably connected to the right thread take-up guiding shaft 26, the left thread take-up guiding shaft 25 and the right thread take-up guiding shaft 27 are connected to the same thread take-up fixing seat 27, which is fixedly connected to the case 5.
Further, the left driving shaft 6 is located at the center of the left thread take-up cam 15, the left thread take-up cam 15 has an eccentrically located left circular guide ring groove 1501, one end of the left thread take-up driving lever 16 is slidably connected in the left circular guide ring groove 1501 through a first left driving pin 28 and a left thread take-up driving bearing 29, the other end of the left thread take-up driving lever 16 is connected with one end of the left thread take-up driven lever 17 and is connected to the machine case 5 through a second left driving pin 30, the other end of the left thread take-up driven lever 17 is connected with one end of the left thread take-up connecting lever 18 through a third left driving pin 31, the other end of the left thread take-up connecting lever 18 is connected to the left thread take-up driving seat 19 through a fourth left driving pin 32, the right thread take-up cam 20 has an eccentrically located right circular guide ring groove 2001, the right circular guide ring groove 2001 and the left circular guide ring groove 1501 are symmetrically located, one end of the right thread take-up driving lever 21 is slidably connected in the right circular guide ring groove 19 through a first right driving pin 33 and a right thread take-up driving pin 34, the other end of the right thread take-up driving lever 21 is connected to the right thread take-up driving pin 24 through a second driving pin 35, and the right driving pin 23, and is connected to the right thread take-up driving lever 23 through a fourth left thread take-up driving pin 23.
Further, the number of the left thread taking-up guide shaft 25 and the number of the right thread taking-up guide shaft 26 are two, the left thread taking-up guide shaft 25 and the right thread taking-up guide shaft 26 are arranged in parallel, the left thread taking-up driving seat 19 is connected to the two left thread taking-up guide shafts 25 in a sliding mode, the left end and the right end of the left thread taking-up driving seat 19 are respectively connected with a first thread taking-up tooth and a second thread taking-up tooth, the first thread taking-up tooth is connected with a first thread taking-up lever piece, the second thread taking-up tooth is connected with a second thread taking-up lever piece, the right thread taking-up driving seat 24 is connected to the two right thread taking-up guide shafts 26 in a sliding mode, the left end and the right end of the right thread taking-up driving seat 24 are respectively connected with a third thread taking-up tooth and a fourth thread taking-up tooth, the third thread taking-up tooth is connected with a third thread taking-up lever piece, and the second thread taking-up tooth is connected with a fourth thread taking-up lever piece.
Further, the second left driving pin 30 and the second right driving pin 35 are located between the left driving shaft 6 and the right driving shaft 7 and above the left driving shaft 6 and the right driving shaft 7.
Further, the second left drive pin 30 is located between the left drive shaft 6 and the fourth left drive pin 32, and the second left drive pin 30 is located below the fourth left drive pin 32, the second right drive pin 35 is located between the right drive shaft 7 and the fourth right drive pin 37, and the second right drive pin 35 is located below the fourth right drive pin 37.
With reference to fig. 7 and 8, the left needle bar driving structure includes a left needle bar driving cam 38, a left dial 39, a left needle bar driving link 40 and a left needle bar driving body 41, the left driving shaft 6 is connected to the center of the left dial 39, the left needle bar driving cam 38 is fixedly connected to the left driving shaft 6, the left needle bar driving cam 38 is fixedly connected to the rear wall surface of the left dial 39, one end of the left needle bar driving link 40 is hinged to an eccentric position of the left dial 39, the other end of the left needle bar driving link 40 is hinged to the left needle bar driving body 41, the right needle bar driving structure includes a right needle bar driving cam 42, a right dial 43, a right needle bar driving link 44 and a right needle bar driving body 45, the left driving shaft 6 is connected to the center of the left dial 39, the right needle bar driving cam 42 is fixedly connected to the left driving shaft 6, the right needle bar driving cam 42 is fixedly connected to the rear wall surface of the right dial 43, one end of the right needle bar driving link 44 is hinged to an eccentric position of the right needle bar driving link 43, the other end of the right needle bar driving link 44 is hinged to the right needle bar driving body 45, the left needle bar driving cam 38 and the right needle bar driving link 42 are symmetrically arranged in mirror image of the left needle bar driving cam 43, and the left needle bar driving link 39 and the left needle bar driving body 40 are symmetrically arranged in mirror image.
Further, the left needle bar drive cam 38 has a left needle bar drive shaft 3803 inserted on the 0 ° line of the left dial 39, the upper end of the left needle bar drive link 40 is connected to the left needle bar drive shaft 3803 through a first left needle bar bearing 54, the lower end of the left needle bar drive link 40 is connected to the left needle bar drive body 41 through a left needle bar positioning pin 55 and a second left needle bar bearing 56, the right needle bar drive cam 42 has a right needle bar drive shaft 4203 inserted on the 0 ° line of the right dial 43, the upper end of the right needle bar drive link 44 is connected to the right needle bar drive shaft 4203 through a first right needle bar bearing 57, and the lower end of the right needle bar drive link 44 is connected to the right needle bar drive body 45 through a right needle bar positioning pin 58 and a second right needle bar bearing 59.
Further, the left needle bar drive cam 38 includes a left cam main body portion 3801 and a left link portion 3802, the left needle bar drive shaft 3803 is vertically connected to the left link portion 3802, the left drive shaft 6 is inserted into the left cam main body portion 3801 and is located at an end near the left link portion, the right needle bar drive cam 42 includes a right cam main body portion 4201 and a right link portion 4202, the right needle bar drive shaft 4203 is vertically connected to the right link portion 4202, and the right drive shaft is inserted into the right cam main body portion 4201 and is located at an end near the right link portion 4202.
Further, the left and right ends of the left needle bar driving body 41 are respectively slidably connected to the first guide shaft 46 and the second guide shaft 47, the left and right ends of the left needle bar driving body 41 are respectively connected to the first needle bar assembly 48 and the second needle bar assembly 49, the left and right ends of the right needle bar driving body 45 are respectively slidably connected to the third guide shaft 50 and the fourth guide shaft 51, the left and right ends of the right needle bar driving body 45 are respectively connected to the third needle bar assembly 52 and the fourth needle bar assembly 53, and the first needle bar assembly 48, the second needle bar assembly 49, the third needle bar assembly 52 and the fourth needle bar assembly 53 are synchronously lifted.
Further, a first electromagnet driving block 60 and a second electromagnet driving block 61 are respectively embedded at the left end and the right end of the left needle bar driving body 41, a third electromagnet driving block 62 and a fourth electromagnet driving block 63 are respectively embedded at the left end and the right end of the right needle bar driving body 45, and the first electromagnet driving block 60, the second electromagnet driving block 61, the third electromagnet driving block 62 and the fourth electromagnet driving block 63 have the same structure.
With reference to fig. 9 and 10, the left presser foot driving structure comprises a left presser foot driving cam 64, a left presser foot large connecting rod 65, a left presser foot three-hole connecting rod 66 and a left presser foot small connecting rod 67 which are sequentially connected, the left presser foot small connecting rod 67 is connected to a left presser foot driving body 68, the right presser foot driving structure comprises a right presser foot driving cam 69, a right presser foot large connecting rod 70, a right presser foot three-hole connecting rod 71 and a right presser foot small connecting rod 72 which are sequentially connected, the right presser foot small connecting rod 72 is connected to a right presser foot driving body 73, the left presser foot driving cam 64 and the right presser foot driving cam 69 are arranged in mirror symmetry, the left presser foot large connecting rod 65 and the right presser foot large connecting rod 70 are arranged in mirror symmetry, the left presser foot three-hole connecting rod 66 and the right presser foot three-hole connecting rod 71 are arranged in mirror symmetry, and the left presser foot small connecting rod 67 and the right presser foot small connecting rod 72 are arranged in mirror symmetry.
Further, the left driving shaft 6 is connected to the eccentric position of the left presser foot driving cam 64, the left presser foot driving cam 64 is connected to the left presser foot large connecting rod 65 through a bearing structure, the end of the left presser foot large connecting rod 65 is connected to one end of the left presser foot three-eye connecting rod 66 through a first left presser foot driving pin 74 and a first left presser foot bearing 75, the middle of the left presser foot three-eye connecting rod 66 is connected to the casing 5 through a second left presser foot driving pin 76 and a second left presser foot bearing 77, the other end of the left presser foot three-eye connecting rod 66 is connected to one end of the left presser foot small connecting rod 67 through a third left presser foot 78 and a third left presser foot bearing 79, the other end of the left presser foot small connecting rod 67 is connected to the left presser foot driving body 68 through a fourth left presser foot driving pin 80, the right driving shaft 7 is connected to an eccentric position of the right presser foot driving cam 69, the right presser foot driving cam 69 is connected to the right presser foot large link 70 through a bearing structure, a link end portion of the right presser foot large link 70 is connected to one end of the right presser foot three-eye link 71 through a first right presser foot driving pin 81 and a first right presser foot bearing 82, a middle portion of the right presser foot three-eye link 71 is connected to the housing 5 through a second right presser foot driving pin 83 and a second right presser foot bearing 84, the other end of the right presser foot three-eye link 71 is connected to one end of the right presser foot small link 72 through a third right presser foot driving pin 85 and a third right presser foot bearing 86, and the other end of the right presser foot small link 72 is connected to the right driving body 73 through a fourth right presser foot 87.
Further, the left end and the right end of the left presser foot driving body 68 are respectively connected to the first guide shaft 46 and the second guide shaft 47 in a sliding manner, the left end and the right end of the left presser foot driving body 68 are respectively connected to the first presser foot assembly 88 and the second presser foot assembly 89, the left end and the right end of the right presser foot driving body 73 are respectively connected to the third guide shaft 50 and the fourth guide shaft 51 in a sliding manner, the left end and the right end of the right presser foot driving body 73 are respectively connected to the third presser foot assembly 90 and the fourth presser foot assembly 91, and the first presser foot assembly 88, the second presser foot assembly 89, the third presser foot assembly 90 and the fourth presser foot assembly 91 are synchronously lifted.
Further, the first left presser foot drive pin 74, the second left presser foot drive pin 76, the third left presser foot drive pin 78 and the fourth left presser foot drive pin 80 are all located below the left drive shaft 6, the first right presser foot drive pin 81, the second right presser foot drive pin 83, the third right presser foot drive pin 85 and the fourth right presser foot drive pin 87 are all located below the right drive shaft 7, and the first left presser foot drive pin 74, the second left presser foot drive pin 76, the third left presser foot drive pin 78, the first right presser foot drive pin 81, the second right presser foot drive pin 83 and the third right presser foot drive pin 85 are all located between the left drive shaft 6 and the right drive shaft 7.
In the embodiment, all the connecting rod pieces are hinged through the pin pieces and the bearings, so that the device is suitable for a high-speed working state; the left driving shaft 6 and the right driving shaft 7 with opposite rotating directions are arranged in each embroidery machine head mechanism, and the left and right thread taking-up driving structures, the left and right needle bar driving structures and the left and right presser foot driving structures which are arranged in mirror symmetry are driven to synchronously work, and in the working process that the driving structures respectively rotate forwards and overturns under the driving of the left driving shaft 6 and the right driving shaft 7, acting forces are balanced with each other, so that vibration and noise can be effectively reduced; the hinge points of the connecting rods are positioned on the left driving shaft 6 and the right driving shaft 7, so that the structure is more compact, and the occupied space is small; it sets up four needle bar subassemblies and corresponding presser foot subassembly and take-up thread subassembly in every embroidery aircraft nose mechanism, can realize low vibration work between four needle bars in same embroidery aircraft nose mechanism 4 effectively, and the structure is compacter.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a multi-needle embroidery machine aircraft nose of low vibration, includes main shaft (1), upper shaft (2) and a plurality of embroidery aircraft nose mechanism (3) of group, transmission connection between upper shaft (2) and main shaft (1), through gear drive mechanism (4) transmission connection between upper shaft (2) and each embroidery aircraft nose mechanism (3), its characterized in that, embroidery aircraft nose mechanism (3) include casing (5), left drive axle (6), right drive axle (7), left drive axle (6) and right drive axle (7) symmetry set up, and the rotation direction of right drive axle (7) of left drive axle (6) is opposite.
2. A low vibration multiple needle embroidery machine head according to claim 1, wherein said gear transmission mechanism (4) comprises a drive shaft gear box (8), a first conical gear (9), a second conical gear (10), a third conical gear (11) and a fourth conical gear (12), said first conical gear (9) and said second conical gear (10) are reversely fixed on the upper shaft (2), said third conical gear (11) is fixed on the left drive shaft (6), and the third conical gear (11) and said first conical gear (9) are in meshing transmission connection, said fourth conical gear (12) is fixed on the right drive shaft (7), and the fourth conical gear (12) and said second conical gear (10) are in meshing transmission connection.
3. The low-vibration multi-needle embroidery machine head according to claim 2, wherein the upper shaft (2), the left driving shaft (6) and the left driving shaft (6) are all inserted into the driving shaft gear box (8), the left driving shaft (6) and the right driving shaft (7) are parallel and arranged side by side, the left driving shaft (6) and the right driving shaft (7) are both perpendicular to the upper shaft (2), the third bevel gear (11) is connected to the end portion of the left driving shaft (6) located inside the driving shaft gear box (8), a first end bearing (13) is arranged between the third bevel gear (11) and the driving shaft gear box (8), the fourth bevel gear (12) is connected to the end portion of the right driving shaft (7) located inside the driving shaft gear box (8), and a second end bearing (14) is arranged between the fourth bevel gear (12) and the driving shaft gear box (8).
4. The machine head of low vibration multi-needle embroidery machine according to claim 1, 2 or 3, characterized in that the left driving shaft (6) is connected with a left thread take-up driving structure, a left needle bar driving structure and a left presser foot driving structure, the right driving shaft (7) is connected with a right thread take-up driving structure, a right needle bar driving structure and a right presser foot driving structure, the left thread take-up driving structure and the right thread take-up driving structure are symmetrically arranged, the left needle bar driving structure and the right needle bar driving structure are symmetrically arranged, and the left presser foot driving structure and the right presser foot driving structure are symmetrically arranged.
5. The low vibration multiple needle embroidery machine head according to claim 4, wherein the left thread take-up driving structure comprises a left thread take-up cam (15), a left thread take-up driving lever (16), a left thread take-up driven lever (17), a left thread take-up link (18) and a left thread take-up driving seat (19) which are connected in sequence, the right thread take-up driving structure comprises a right thread take-up cam (20), a right thread take-up driving lever (21), a right thread take-up driven lever (22), a right thread take-up link (23) and a right thread take-up driving seat (24) which are connected in sequence, the left thread take-up cam (15) and the right thread take-up cam (20) are arranged in mirror symmetry, the left thread take-up driving lever (16) and the right thread take-up driving lever (21) are arranged in mirror symmetry, the left thread take-up driven lever (17) and the right thread take-up driven lever (22) are arranged in mirror symmetry, the left thread take-up link (18) and the right thread take-up link (23) are arranged in mirror symmetry, the left thread take-up driving seat (19) is slidably connected to the left thread take-up guiding shaft (25), and the left thread take-up guiding shaft (27) is connected to the same guiding guide shaft (26) and the left thread take-up driving seat (27) which are connected together.
6. The low-vibration multi-needle embroidery machine head according to claim 5, wherein the left driving shaft (6) is at the center of a left thread take-up cam (15), the left thread take-up cam (15) has an eccentrically disposed left circular guide ring groove (1501), one end of the left thread take-up driving lever (16) is slidably coupled in the left circular guide ring groove (1501) by a first left driving pin (28) and a left thread take-up driving bearing (29), the other end of the left thread take-up driving lever (16) and one end of a left thread take-up driven lever (17) are coupled together by a second left driving pin (30) to the machine case (5), the other end of the left thread take-up driven lever (17) is coupled to one end of a left thread take-up connecting rod (18) by a third left driving pin (31), the other end of the left thread-picking connecting rod (18) is connected to the left thread-picking driving seat (19) through a fourth left driving pin (32), the right thread-picking cam (20) is provided with a right circular guide ring groove (2001) which is eccentrically arranged, the right circular guide ring groove (2001) and the left circular guide ring groove (1501) are symmetrically arranged, one end of the right thread-picking driving rod (21) is connected to the right circular guide ring groove (2001) through a first right driving pin (33) and a right thread-picking driving bearing (34) in a sliding manner, the other end of the right thread-picking driving rod (21) is connected to one end of the right thread-picking driven rod (22) and is connected to the machine shell through a second right driving pin (35) together (5) The other end of the right take-up driven lever (22) is connected with one end of a right take-up connecting rod (23) through a third right driving pin (36), and the other end of the right take-up connecting rod (23) is connected with a right take-up driving seat (24) through a fourth right driving pin (37).
7. The low-vibration multiple-needle embroidery machine head according to claim 4, wherein the left needle bar driving structure comprises a left needle bar driving cam (38), a left dial (39), a left needle bar driving link (40) and a left needle bar driving body (41), the left driving shaft (6) is connected to the center of the left dial (39), the left needle bar driving cam (38) is fixedly connected to the left driving shaft (6), and the left needle bar driving cam (38) is fixedly connected to the rear wall surface of the left dial (39), one end of the left needle bar driving link (40) is hinged to the eccentric position of the left dial (39), the other end of the left needle bar driving link (40) is hinged to the left needle bar driving body (41), the right needle bar driving structure comprises a right needle bar driving cam (42), a right dial (43), a right needle bar driving link (44) and a right needle bar driving link (45), the left driving shaft (6) is connected to the center of the left needle bar driving link (39), the right needle bar driving cam (42) is fixedly connected to the left needle bar driving link (6), and the right needle bar driving cam (43) is hinged to the eccentric position of the right needle bar driving shaft (43), left needle bar drive cam (38) and right needle bar drive cam (42) are mirror symmetry and set up, left side calibrated scale (39) and right calibrated scale (43) are mirror symmetry and set up, left side needle bar drive connecting rod (40) and right needle bar drive connecting rod (44) are mirror symmetry and set up.
8. The low-vibration multi-needle embroidery machine head according to claim 7, wherein the left and right ends of the left needle bar driving body (41) are slidably connected to the first guide shaft (46) and the second guide shaft (47), respectively, and the left and right ends of the left needle bar driving body (41) are connected to the first needle bar assembly (48) and the second needle bar assembly (49), respectively, the left and right ends of the right needle bar driving body (45) are slidably connected to the third guide shaft (50) and the fourth guide shaft (51), respectively, and the left and right ends of the right needle bar driving body (45) are connected to the third needle bar assembly (52) and the fourth needle bar assembly (53), respectively, and the first needle bar assembly (48), the second needle bar assembly (49), the third needle bar assembly (52), and the fourth needle bar assembly (53) are lifted and lowered synchronously.
9. The low-vibration multi-needle embroidery machine head as claimed in claim 4, wherein the left presser foot driving structure comprises a left presser foot driving cam (64), a left presser foot large connecting rod (65), a left presser foot three-eye connecting rod (66) and a left presser foot small connecting rod (67) which are connected in sequence, the left presser foot small connecting rod (67) is connected to the left presser foot driving body (68), the right presser foot driving structure comprises a right presser foot driving cam (69), a right presser foot large connecting rod (70), a right presser foot three-eye connecting rod (71) and a right presser foot small connecting rod (72) which are connected in sequence, the right presser foot small connecting rod (72) is connected to the right presser foot driving body (73), the left presser foot driving cam (64) and the right presser foot driving cam (69) are arranged in mirror symmetry, the left presser foot large connecting rod (65) and the right presser foot large connecting rod (70) are arranged in mirror symmetry, the left presser foot three-eye connecting rod (66) and the right presser foot three-eye connecting rod (71) are arranged in mirror symmetry, and the left presser foot small connecting rod (67) and the right presser foot small connecting rod (72) are arranged in mirror symmetry.
10. The low vibration multiple needle embroidery machine head as claimed in claim 9, wherein said left driving shaft (6) is connected to an eccentric position of a left presser foot driving cam (64), said left presser foot driving cam (64) and a left presser foot large link (65) are connected by a bearing structure, a link end portion of said left presser foot large link (65) and one end portion of a left presser foot three eye link (66) are connected by a first left presser foot driving pin (74) and a first left presser foot bearing (75), a middle portion of said left presser foot three eye link (66) is connected to the machine case (5) by a second left presser foot driving pin (76) and a second left presser foot bearing (77), the other end of said left presser foot three eye link (66) and one end of a left presser foot small link (67) are connected by a third left presser foot driving pin (78) and a third left presser foot bearing (79), the other end of said left presser foot small link (67) is connected to a driving body (68) by a fourth presser foot left presser foot driving pin (80), said right presser foot driving shaft (7) is connected to a driving body of a right presser foot driving pin (69) and said presser foot driving shaft (69) are connected by a first presser foot large link bearing (71), said right presser foot driving pin (69) and said eccentric position of said right presser foot link (70) are connected by a first presser foot large link bearing (71), the middle part of the right presser foot three-eye connecting rod (71) is connected to the machine shell (5) through a second right presser foot driving pin (83) and a second right presser foot bearing (84), the other end of the right presser foot three-eye connecting rod (71) and one end of a right presser foot small connecting rod (72) are connected through a third right presser foot driving pin (85) and a third right presser foot bearing (86), the other end of the right presser foot small connecting rod (72) is connected to the right presser foot driving body (73) through a fourth right presser foot driving pin (87), the left end and the right end of the left presser foot driving body (68) are respectively connected to a first guide shaft (46) and a second guide shaft (47) in a sliding mode, the left end and the right end of the left presser foot driving body (68) are respectively connected to a first presser foot assembly (88) and a second presser foot assembly (89), the left end and the right end of the right presser foot driving body (73) are respectively connected to a third presser foot assembly (90), a fourth presser foot assembly (91), and a fourth presser foot assembly (91) and a third presser foot assembly (90) and a fourth presser foot assembly (89) are respectively connected to the right end of the right presser foot driving body (73).
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