Single-double weft density transmission device of knitting machine
By using the same worm gear and worm reduction group and gears in the knitting machine in combination, the problems of complex structure and high cost of traditional knitting machines are solved, and compact and efficient double weft braiding is achieved, and gear replacement is facilitated.
Patent Information
- Application Number
- CN202422183995.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The weft-tight transmission mechanism of traditional knitting machines requires two independent worm gear and worm reduction groups to achieve double weft-tight braiding, resulting in complex structure, large space and high cost.
A single and double weft transmission device of a knitting machine is designed, using the same worm gear reduction group combined with a gear combination of different teeth numbers, and two weft weft weft braids of different speeds are achieved through the left and right weft exchange gear sets. It adopts a detachable bracket and auxiliary fixing plate structure to facilitate the replacement of different gear teeth ratios.
It realizes a double weft knitting with a compact structure, low cost and small space occupancy. It can quickly replace the gear combination through simple operation to meet the needs of different weft knitting.
Smart Images
Figure CN223088034U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of knitting machines, and particularly relates to a single and double weft density transmission device for a knitting machine. Background Art
[0002] A knitting machine is a mechanical device for producing fabrics. It forms fabrics or other textiles by interweaving yarns or other fiber materials. Such machines usually feature high speed, high efficiency, and precision, and can produce a large number of high-quality products in a short time.
[0003] In traditional knitting machines, the weft density transmission mechanism uses the same set of worm and worm gear reduction sets to achieve one weft density transmission for knitting. If the traditional mechanism is to achieve two kinds of weft density knitting operations, two sets of independent worm and worm gear reduction sets need to be configured. This method has a complex structure, occupies a large space, and has a high cost. Summary of the Invention
[0004] In order to solve the above technical problems, the utility model provides a single and double weft density transmission device for a knitting machine, which is ingeniously designed, reasonably and compactly structured, can provide two different speeds of conveying, and realizes the knitting of two different weft density fabrics.
[0005] The technical solution of the utility model is as follows:
[0006] A single and double weft density transmission device for a knitting machine includes a worm and worm gear reduction set, an output shaft, a left driving gear, a left driven gear, a left weft density exchange gear set, a right driving gear, a right driven gear, and a right weft density exchange gear set. The output shaft is rotatably installed on the worm and worm gear reduction set, and a left driving gear and a right driving gear are respectively installed at both ends of the output shaft after passing through the left and right ends of the worm and worm gear reduction set. A left driven gear is also rotatably installed on the left side of the worm and worm gear reduction set, and a right driven gear is rotatably installed on the right side of the worm and worm gear reduction set. The left driving gear drives the left driven gear through the left weft density exchange gear set; the right driving gear drives the right driven gear through the right weft density exchange gear set; the left weft density exchange gear set and the right weft density exchange gear set are respectively rotatably installed at the left and right ends of the worm and worm gear reduction set; the number of teeth of the left driving gear and the right driving gear are the same or different; the number of teeth of the left driven gear and the right driven gear are the same or different; the transmission tooth ratio of the left weft density exchange gear set and the right weft density exchange gear set are the same or different.
[0007] The worm and worm gear reduction set includes a box body, a worm, and a worm gear. The worm is vertically rotatably installed in the box body. One end of the worm is rotatably installed on the upper surface of one side of the box body, and the other end of the worm is also rotatably installed on the upper surface of the other side of the box body. Any one of the two ends of the worm penetrates through the box body to form a driven end; both ends of the output shaft are respectively rotatably installed on the upper surface of the box body, and both ends of the output shaft penetrate through the box body. A worm gear is installed in the middle of the output shaft. The worm gear is located inside the box body, and the worm is meshed and cooperated with the worm gear.
[0008] The described left weft density change gear set and right weft density change gear set both include an outer gear and an inner gear. The outer gear and the inner gear are installed on the same rotating shaft, and the lower end of the rotating shaft is rotatably installed on the worm and worm gear reduction set. The outer gear meshes with the left driving gear or the right driving gear, then the inner gear meshes with the left driven gear or the right driven gear; or the inner gear meshes with the left driving gear or the right driving gear, then the outer gear meshes with the left driven gear or the right driven gear.
[0009] The described left weft density change gear set and right weft density change gear set are respectively replaceably installed on the worm and worm gear reduction set through a bracket. The lower end of the bracket is provided with a T-shaped through groove, and the bracket is installed on the worm and worm gear reduction set through a T-shaped bolt. The head of the T-shaped bolt slides within the T-shaped through groove of the bracket, and the threaded end of the T-shaped bolt penetrates through the entire worm and worm gear reduction set and is locked and fixed on the worm and worm gear reduction set through a nut. The left weft density change gear set and the right weft density change gear set are rotatably fixed on the bracket, or the left weft density change gear set and the right weft density change gear set are respectively rotatably installed on the bracket through a rotating shaft.
[0010] The described bracket can be installed on the worm and worm gear reduction set through an auxiliary fixing plate. One end of the auxiliary fixing plate is fixed on the worm and worm gear reduction set, and the other end of the auxiliary fixing plate extends a certain length on one side of the worm and worm gear reduction set to form an extension plate, and the T-shaped bolt is fixed on the extension plate.
[0011] The described left driven gear is rotatably installed on the worm and worm gear reduction set through a left half shaft, and the right driven gear is rotatably installed on the worm and worm gear reduction set through a right half shaft. The left half shaft and the right half shaft are independently rotatably installed.
[0012] The number of teeth of the left driving gear and the right driving gear is the same, the number of teeth of the left driven gear and the right driven gear is the same, and the transmission tooth ratio of the left weft density change gear set and the right weft density change gear set is different; that is, the number of teeth of the outer gears of the left weft density change gear set and the right weft density change gear set is the same, the number of teeth of the inner gears of the left weft density change gear set and the right weft density change gear set is different, or the number of teeth of the inner gears of the left weft density change gear set and the right weft density change gear set is the same, and the number of teeth of the outer gears of the left weft density change gear set and the right weft density change gear set is different.
[0013] The advantages of the present utility model are ingenious design, reasonable and compact structure, low cost, and small occupied space;
[0014] Driven by the output of the same worm and worm gear reduction set, different numbers of teeth of gears are used on both sides for driving and weaving, generating two different speeds of conveying, and then realizing the weaving of two different weft density fabrics;
[0015] Meanwhile, the brackets of the left weft density change gear set and the right weft density change gear set designed by the present utility model are convenient for disassembly and installation, facilitating the replacement of internal and external gears with different gear tooth ratios, realizing the change of speed output, and meeting the needs of different weft density weaving. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic diagram of the present utility model Figure 1 .
[0017] Figure 2 is a schematic diagram of the present utility model Figure 2 .
[0018] Figure 3 is a bottom view schematic diagram of the present utility model.
[0019] Figure 4 is a longitudinal sectional schematic diagram of the present utility model.
[0020] Figure 5 is a vertical sectional view at the left and right driven gears of the present utility model.
[0021] Figure 6 is a sectional schematic diagram at the bracket of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] Referring to the attached Figures 1-6 , a single and double weft density transmission device for a knitting machine, which comprises a worm and worm gear reduction group 1, an output shaft 2, a left driving gear 3, a left driven gear 4, a left weft density change gear set 5, a right driving gear 6, a right driven gear 7 and a right weft density change gear set 8. The output shaft 2 is rotatably installed on the worm and worm gear reduction group 1, and a left driving gear 3 and a right driving gear 6 are respectively installed at both ends of the output shaft 2 after passing through the left and right ends of the worm and worm gear reduction group 1. A left driven gear 4 is also rotatably installed on the left side of the worm and worm gear reduction group 1, and a right driven gear 7 is also rotatably installed on the right side of the worm and worm gear reduction group 1; the left driving gear 3 drives the left driven gear 4 through the left weft density change gear set 5; the right driving gear 6 drives the right driven gear 7 through the right weft density change gear set 8; the left weft density change gear set 5 and the right weft density change gear set 8 are respectively rotatably installed at the left and right ends of the worm and worm gear reduction group 1; the number of teeth of the left driving gear 3 and the right driving gear 6 are the same or different; the number of teeth of the left driven gear 4 and the right driven gear 7 are the same or different; the transmission tooth ratio of the left weft density change gear set 5 and the right weft density change gear set 8 are the same or different.
[0023] The described worm and worm gear reduction unit 1 includes a housing 11, a worm 12, and a worm gear 13. The worm 12 is vertically rotatably installed in the housing 11. One end of the worm 12 is rotatably installed on the upper surface of one side of the housing 11, and the other end of the worm 12 is also rotatably installed on the upper surface of the other side of the housing 11. Any one of the two ends of the worm 12 penetrates through the housing 11 to form a driven end; both ends of the output shaft 2 are rotatably installed on the housing 11, the two ends of the output shaft 2 penetrate through the housing 11, a worm gear 13 is installed in the middle of the output shaft 2, the worm gear 13 is located inside the housing 11, and the worm 12 is meshed and matched with the worm gear 13. The driven end of the worm is used to connect to a driving motor. A simple description of the present utility model.
[0024] The described left weft density change gear set 5 and right weft density change gear set 8 both include an outer gear 51 and an inner gear 52. The outer gear 51 and the inner gear 52 are installed on the same rotating shaft 53. The lower end of the rotating shaft 53 is rotatably installed on the worm and worm gear reduction unit 1; the outer gear 51 meshes with the left driving gear 3 or the right driving gear 6, then the inner gear 52 meshes with the left driven gear 4 or the right driven gear 7; or the inner gear 52 meshes with the left driving gear 3 or the right driving gear 6, then the outer gear 51 meshes with the left driven gear 4 or the right driven gear 7. The inner and outer gears are installed on the same rotating shaft to achieve synchronous rotation. Different tooth ratio inner and outer gear sets can be replaced to achieve a change in speed output. The rotational speeds at both left and right ends can be the same or different, so as to change the speed transmitted from the driving gear to the driven gear.
[0025] The described left weft density change gear set 5 and right weft density change gear set 8 are respectively replaceably installed on the worm and worm gear reduction unit 1 through a support 9. The lower end of the support 9 is provided with a T-shaped through groove 91. The support 9 is installed on the worm and worm gear reduction unit 1 through a T-shaped bolt 92. The head of the T-shaped bolt 92 slides in the T-shaped through groove 91 of the support 9. The threaded end of the T-shaped bolt 92 penetrates through the entire worm and worm gear reduction unit 1 and is locked and fixed on the worm and worm gear reduction unit 1 through a nut 93; the left weft density change gear set 5 and the right weft density change gear set 8 are rotatably fixed on the support 9, or the left weft density change gear set 5 and the right weft density change gear set 8 are respectively rotatably installed on the support 9 through the rotating shaft 53.
[0026] The described support 9 can be installed on the worm and worm gear reduction unit 1 through an auxiliary fixing plate 94. One end of the auxiliary fixing plate 94 is fixed on the worm and worm gear reduction unit 1, and the other end of the auxiliary fixing plate 94 extends out of one side of the worm and worm gear reduction unit 1 by a certain length to form an extension plate. The T-shaped bolt 92 is fixed on the extension plate and is also locked through a nut. The auxiliary fixing plate is used to assist in the installation and fixation of the position of the support, making up for the insufficient installation position on the worm and worm gear reduction unit.
[0027] The described left passive gear 4 is rotatably mounted on the worm and worm gear reduction unit 1 through a left half shaft 41, and the right passive gear 7 is rotatably mounted on the worm and worm gear reduction unit 1 through a right half shaft 71. The left half shaft 41 and the right half shaft 71 are independently rotatably mounted. The independent rotational mounting of the left and right half shafts ensures the independent rotational drive of the left and right passive gears, achieving different speed outputs.
[0028] In an implementation scheme, the left driving gear 3 and the right driving gear 6 have the same number of teeth, the left passive gear 4 and the right passive gear 7 have the same number of teeth, and the transmission tooth ratios of the left weft density exchange gear set 5 and the right weft density exchange gear set 8 are different; that is, the outer gears 51 of the left weft density exchange gear set 5 and the right weft density exchange gear set 8 have the same number of teeth, and the inner gears 52 of the left weft density exchange gear set 5 and the right weft density exchange gear set 8 have different numbers of teeth, or the inner gears 52 of the left weft density exchange gear set 5 and the right weft density exchange gear set 8 have the same number of teeth, and the outer gears 51 of the left weft density exchange gear set 5 and the right weft density exchange gear set 8 have different numbers of teeth. This design is such that it is inconvenient to replace the driving and passive gears. The combination of the left weft density exchange gear set 5 and the right weft density exchange gear set 8 with an adjustable / detachable mounting bracket design facilitates replacement. By replacing the left weft density exchange gear set 5 and the right weft density exchange gear set 8 with different tooth ratios, the replacement operation can be quickly achieved, which is simple and convenient.
[0029] When the present utility model is in use, the worm and worm gear reduction unit provides a synchronous speed output to both ends through the output shaft. By changing the tooth ratios of the gears on both sides, different speed outputs are achieved, realizing double-end double weft density transmission output; it can also achieve the same gear ratio and the same speed output on both sides, realizing double-end single weft density transmission output, and the operator can adjust according to needs; the present utility model realizes the convenient replacement of the left weft density exchange gear set 5 and the right weft density exchange gear set 8 by designing an adjustable / detachable mounting bracket for the left weft density exchange gear set 5 and the right weft density exchange gear set 8. By loosening the nut, the head of the T-shaped bolt can slide in the T-shaped through groove of the mounting bracket and slide out from the T-shaped through groove, so that the mounting bracket, the outer gear, and the inner gear are disassembled at the same time. The inner and outer gears with the required tooth ratio can be replaced, and then installed through the mounting bracket of the same model. The mounting bracket can be rotated and adjusted before the nut is tightened. At the same time, the mounting bracket can also slide relative to the T-shaped bolt for adjustment to achieve the meshing fit of the inner and outer gears with the driving gear and the passive gear.
Claims
1. A single and double weft density drive device for a knitting machine, characterized in that, It includes a worm and worm gear reduction unit, an output shaft, a left driving gear, a left driven gear, a left weft density change gear set, a right driving gear, a right driven gear and a right weft density change gear set. The output shaft is rotatably installed on the worm and worm gear reduction unit, and a left driving gear and a right driving gear are respectively installed at both ends of the output shaft after passing through the left and right ends of the worm and worm gear reduction unit. A left driven gear is also rotatably installed on the left side of the worm and worm gear reduction unit, and a right driven gear is rotatably installed on the right side of the worm and worm gear reduction unit. The left driving gear drives the left driven gear through the left weft density change gear set; The right driving gear drives the right driven gear through the right weft density change gear set; the left weft density change gear set and the right weft density change gear set are respectively rotatably installed at the left and right ends of the worm and worm gear reduction unit; the number of teeth of the left driving gear and the right driving gear may be the same or different; the number of teeth of the left driven gear and the right driven gear may be the same or different; the transmission tooth ratio of the left weft density change gear set and the right weft density change gear set may be the same or different.
2. The single and double weft density transmission device of a knitting machine according to claim 1, characterized in that The worm and worm gear reduction unit includes a box body, a worm and a worm gear. The worm is vertically rotatably installed in the box body. One end of the worm is rotatably installed on the upper surface of one side of the box body, and the other end of the worm is also rotatably installed on the upper surface of the other side of the box body. Any one of the two ends of the worm forms a driven end after passing through the box body; both ends of the output shaft are respectively rotatably installed on the upper surface of the box body, both ends of the output shaft pass through the box body, and a worm gear is installed in the middle of the output shaft. The worm gear is located inside the box body, and the worm meshes with the worm gear.
3. A single and double weft density drive device for a knitting machine according to claim 1, characterized in that, Both the left weft density change gear set and the right weft density change gear set include an outer gear and an inner gear. The outer gear and the inner gear are installed on the same rotating shaft, and the lower end of the rotating shaft is rotatably installed on the worm and worm gear reduction unit; the outer gear meshes with the left driving gear or the right driving gear, and then the inner gear meshes with the left driven gear or the right driven gear; or the inner gear meshes with the left driving gear or the right driving gear, and then the outer gear meshes with the left driven gear or the right driven gear.
4. A single and double weft density transmission device of a knitting machine according to claim 1 or 3, characterized in that, The left weft density change gear set and the right weft density change gear set are respectively replaceably installed on the worm and worm gear reduction unit through a bracket. The lower end of the bracket is provided with a T-shaped through groove. The bracket is installed on the worm and worm gear reduction unit through a T-shaped bolt. The head of the T-shaped bolt slides in the T-shaped through groove of the bracket, and the threaded end of the T-shaped bolt passes through the entire worm and worm gear reduction unit and is locked and fixed on the worm and worm gear reduction unit through a nut; the left weft density change gear set and the right weft density change gear set are rotatably fixed on the bracket, or the left weft density change gear set and the right weft density change gear set are respectively rotatably installed on the bracket through a rotating shaft.
5. A single and double weft density transmission device for a knitting machine according to claim 4, characterized in that, The bracket can be installed on the worm and worm gear reduction unit through an auxiliary fixing plate. One end of the auxiliary fixing plate is fixed on the worm and worm gear reduction unit, and the other end of the auxiliary fixing plate extends a certain length out of one side of the worm and worm gear reduction unit to form an extension plate, and the T-shaped bolt is fixed on the extension plate.
6. The single and double weft density drive device of a knitting machine according to claim 1, characterized in that, The left driven gear is rotatably installed on the worm and worm gear reduction unit through a left half shaft, and the right driven gear is rotatably installed on the worm and worm gear reduction unit through a right half shaft. The left half shaft and the right half shaft are independently rotatably installed.
7. A single and double weft density drive device for a knitting machine according to claim 4, characterized in that The number of teeth of the left driving gear and the right driving gear is the same, the number of teeth of the left driven gear and the right driven gear is the same, and the transmission tooth number ratios of the left weft density change gear set and the right weft density change gear set are different; that is, the number of teeth of the outer gears of the left weft density change gear set and the right weft density change gear set is the same, the number of teeth of the inner gears of the left weft density change gear set and the right weft density change gear set is different, or the number of teeth of the inner gears of the left weft density change gear set and the right weft density change gear set is the same, and the number of teeth of the outer gears of the left weft density change gear set and the right weft density change gear set is different.