CN110144670B - Adjusting mechanism of knitting machinery traction device - Google Patents
Adjusting mechanism of knitting machinery traction device Download PDFInfo
- Publication number
- CN110144670B CN110144670B CN201910521646.7A CN201910521646A CN110144670B CN 110144670 B CN110144670 B CN 110144670B CN 201910521646 A CN201910521646 A CN 201910521646A CN 110144670 B CN110144670 B CN 110144670B
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- Prior art keywords
- tension spring
- gripper assembly
- spring mechanism
- elastic piece
- plate
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- 230000007246 mechanism Effects 0.000 title claims abstract description 94
- 238000009940 knitting Methods 0.000 title claims abstract description 27
- 239000004744 fabric Substances 0.000 abstract description 14
- 230000000630 rising effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/88—Take-up or draw-off devices for knitting products
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
- D04B27/34—Take-up or draw-off devices for knitted products
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
Abstract
The invention discloses an adjusting mechanism of a knitting machine traction device, which comprises a fixed seat and a gripper assembly, and is characterized in that the adjusting mechanism comprises an elastic piece, a tension spring mechanism and a rotary toothed plate which are arranged on the fixed seat, wherein the upper end of the elastic piece is fixed with the gripper assembly, the lower end of the elastic piece is fixed with the tension spring mechanism, the tension spring mechanism comprises a convex column, the rotary toothed plate is rotatably connected to the tension spring mechanism, the rotary toothed plate comprises an upper limiting piece and a lower limiting piece, the convex column of the tension spring mechanism swings between the upper limiting piece and the lower limiting piece, and the elastic piece is always in a stretching state; the convex column is abutted against the lower limiting piece, the elastic piece drives the gripper assembly to have limited pull-down stroke, and the pulling force of the elastic piece is unchanged; the convex column is abutted against the upper convex block, the tension spring mechanism is limited by the upper convex block in rising, and the elastic piece changes the traction force through the rotation angle of the rotary toothed plate. The pneumatic and elastic combined control device is simple in structure, controllable in pulling force, high in flexibility and capable of adjusting the pulling force according to the pulling requirements of different fabrics.
Description
Technical Field
The invention relates to the field of knitting machinery, in particular to an adjusting mechanism of a knitting machinery traction device.
Background
At present, most traction devices of knitting machines adopt roller devices, but the roller devices aim at simultaneously drawing the whole fabric, so that selective traction of the fabric cannot be realized, and the traction devices have great limitation on fully-formed machines. And the rubber layer in the roller has certain loss, so that the fabric is easy to deform when being pulled to a certain degree, and the rejection rate is increased. Therefore, the rake pulling device is necessary to be additionally arranged on the roller device. The rake traction device can make up for the defect, and can realize selective traction of the fabric according to specific knitting requirements of the fabric. At present, the island fine company adopts a harrow type traction which is completed by the double functions of a tension spring and the dead weight of a harrow, and the structure is complex and the operation is not easy.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art and provides an adjusting mechanism of a knitting machine pulling device with pneumatic and elastic combined control.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the adjusting mechanism of the knitting machinery traction device comprises a fixed seat and a gripper assembly, wherein the adjusting mechanism comprises an elastic piece, a tension spring mechanism and a rotary toothed plate which are arranged on the fixed seat, the upper end of the elastic piece is fixed with the gripper assembly, the lower end of the elastic piece is fixed with the tension spring mechanism, the tension spring mechanism comprises a convex column, the rotary toothed plate is rotatably connected to the tension spring mechanism, the rotary toothed plate comprises an upper limiting piece and a lower limiting piece, and the convex column of the tension spring mechanism swings between the upper limiting piece and the lower limiting piece;
the convex column is abutted against the lower limiting piece, the elastic piece drives the gripper assembly to be limited in pulling stroke, and the pulling force of the elastic piece is unchanged. The mechanism convex column of the invention is abutted against the pull-down limiting piece, the pull-down is controlled by the rotary toothed plate, and the stroke is limited, so that the stroke of the gripper assembly is controllable, and the pulling force is unchanged. The convex column is abutted against the upper limiting part, the tension spring mechanism is limited by the upper limiting part, and the elastic part changes the traction force through the rotation angle of the rotary toothed plate. The mechanism can control the tension of the adjusting spring, so as to control the traction force of the gripper assembly, when the upper limiting piece is lower and the gripper assembly is lifted, the elastic piece stretches longer, the elastic force is larger, otherwise, the elastic force of the elastic piece is smaller, and the traction force of the gripper is adjusted according to the needs of different fabrics.
Further, the adjusting mechanism further comprises a piston rod, the piston rod is positioned below the gripper assembly, the piston rod pushes upwards to drive the gripper assembly to ascend, and when the elastic piece drives the tension spring mechanism to swing upwards until the convex column abuts against the upper limiting piece, the gripper assembly breaks away from the tension spring mechanism to continue to ascend until the gripper assembly resets; after the piston rod is reset, the gripper assembly is downwards abutted against the tension spring mechanism through the elastic force of the elastic piece, and then is lowered to the convex column together with the tension spring mechanism to be abutted against the lower limiting piece, and the tension spring mechanism stops swinging downwards.
Further, the tension spring mechanism comprises a tension spring plate and a tension spring column, the tension spring column is arranged at the rear of the middle part of the tension spring plate, and one end of the elastic piece is arranged on the tension spring column.
Further, the tension spring mechanism comprises a tension spring plate roller, the tension spring plate roller is rotatably connected to the rear of the front end of the tension spring plate, and the gripper assembly moves up and down against the tension spring plate roller when the gripper assembly is not separated from the tension spring mechanism. When the tension spring mechanism is not separated from the tension spring mechanism, the tension spring plate roller rolls against the tension spring mechanism, and meanwhile, the tension spring plate roller moves upwards along with the tension spring plate.
Further, the tension spring mechanism further comprises a tension spring plate shaft position, and the tension spring plate shaft position is used for installing the rotary toothed plate on the tension spring plate and fixing the tension spring plate on the fixing seat.
Further, the adjusting mechanism further comprises a tension spring rack and a motor, wherein the tension spring rack is arranged in the middle of the fixing seat and meshed with the rotary toothed plate, and the motor drives the tension spring rack to rotate to adjust the positions of the upper limiting piece and the lower limiting piece of the toothed plate.
Further, the upper limiting piece and the lower limiting piece are respectively an upper protruding block and a lower protruding block which are outwards protruded from the periphery of the rotary toothed plate. Further, the elastic piece is a tension spring.
Further, the gripper assembly is mounted on a linear bearing, and the gripper assembly slides up and down along the linear bearing.
Further, the tension spring plate roller is rotatably connected to the rear of the front end of the tension spring plate through tension spring plate roller screws.
By adopting the technical scheme of the invention, the beneficial effects of the invention are as follows: compared with the prior art, the pneumatic and elastic combined control device has the advantages of simple structure, controllable pulling force, high flexibility and the like, and can adjust the pulling force according to the pulling requirements of different fabrics. The speed of entering the fabric during the rake action is determined by the tension of the tension spring, and the position of the rotary toothed plate limiting piece is regulated by electric control, so that the tension of the tension spring is regulated, and the mechanism can regulate the pulling force of the gripper assembly according to the requirements of different fabrics. The invention meets the requirements of different fabrics by electrically controlling the travel of the pull-down fabric of the adjustable rake.
Drawings
FIG. 1 is a first exploded construction diagram of an adjusting mechanism of a knitting machine pulling device provided by the invention;
FIG. 2 is a second exploded structure diagram of the adjusting mechanism of the knitting machine pulling device provided by the invention;
FIG. 3 is a structural view of an adjusting mechanism of a knitting machine pulling device provided by the invention;
fig. 4 is a schematic diagram of the highest position a of the gripper of the adjusting mechanism of the knitting machine pulling device;
fig. 5 is a schematic diagram of a middle position B of a gripper of an adjusting mechanism of a knitting machine pulling device provided by the invention;
fig. 6 is a schematic diagram of a middle position C of a gripper of an adjusting mechanism of a knitting machine pulling device provided by the invention;
fig. 7 is a schematic view of the lowest position D of the gripper of the adjusting mechanism of the knitting machine pulling device provided by the invention.
The device comprises a pull spring plate, a boss 1.1, a pull spring plate shaft position, a rotary toothed plate, an upper lug, a lower lug, an elastic piece, a pull spring post, a pull spring plate roller screw, a pull spring plate roller, a pull spring rack, a piston rod, a linear bearing, a gripper assembly and a fixing seat, wherein the pull spring plate is arranged in the boss 1.1, the pull spring plate shaft position is arranged in the boss 3, the rotary toothed plate is arranged in the boss 2.1, the lower lug is arranged in the boss 4, the elastic piece is arranged in the boss 5, the pull spring plate roller screw is arranged in the boss 6, the pull spring plate roller is arranged in the boss 7, the pull spring rack is arranged in the boss 8, the piston rod is arranged in the boss 9, the linear bearing is arranged in the linear bearing, the gripper assembly is arranged in the linear bearing, and the fixing seat is arranged in the gripper assembly.
Detailed Description
Specific embodiments of the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-3, an adjusting mechanism of a knitting machine traction device comprises a fixed seat 12 and a gripper assembly 11, wherein the adjusting mechanism comprises an elastic piece 4, a tension spring mechanism and a rotary toothed plate 3 which are arranged on the fixed seat 12, the upper end of the elastic piece 4 is fixed with the gripper assembly 11, the lower end of the elastic piece is fixed with the tension spring mechanism, the tension spring mechanism comprises a convex column 1.1, the rotary toothed plate 3 is rotatably connected to the tension spring mechanism, the rotary toothed plate 3 comprises an upper limiting piece and a lower limiting piece, and the convex column 1.1 of the tension spring mechanism swings between the upper limiting piece and the lower limiting piece; the elastic piece 4 is a tension spring.
The convex column 1.1 is abutted against the lower limiting piece, the elastic piece 4 drives the gripper assembly 11 to have limited pull-down stroke, and the traction force of the elastic piece 4 is unchanged; the convex column 1.1 is abutted against the upper limiting part, the tension spring mechanism is limited by the upper limiting part, and the elastic part 4 changes the traction force through the rotation angle of the rotary toothed plate 3.
The adjusting mechanism further comprises a piston rod 9, the piston rod 9 is positioned below the gripper assembly 11, the piston rod 9 pushes upwards to drive the gripper assembly 11 to ascend, and when the elastic piece 4 drives the tension spring mechanism to swing upwards until the convex column 1.1 abuts against the upper limiting piece, the gripper assembly 11 breaks away from the tension spring mechanism to continue to ascend until the gripper assembly 11 is reset; after the piston rod 9 is reset, the gripper assembly 11 descends downwards through the elastic force of the elastic piece 4, and after abutting against the tension spring mechanism, the gripper assembly descends to the boss 1.1 together with the tension spring mechanism to abut against the lower limiting piece, and the tension spring mechanism stops swinging downwards.
The tension spring mechanism comprises a tension spring plate 1 and a tension spring column 5, the tension spring column 5 is arranged at the rear of the middle part of the tension spring plate 1, and one end of the elastic piece 4 is arranged on the tension spring column 5. The tension spring mechanism comprises tension spring plate rollers 7, and the tension spring plate rollers 7 are rotatably connected to the rear of the front end of the tension spring plate 1 through tension spring plate roller screws 6. The gripper assembly 11 moves up and down against the tension spring plate roller 7 without disengaging the tension spring mechanism. The gripper assembly 11 is mounted on the linear bearing 10, and the gripper assembly 11 slides up and down along the linear bearing 10, so that the gripper assembly slides more stably and has better guidance.
The tension spring mechanism further comprises a tension spring plate shaft position 2, and the tension spring plate shaft position 2 is used for installing the rotary toothed plate 3 on the tension spring plate 1 and fixing the tension spring plate 1 on the fixing seat 12.
The adjusting mechanism further comprises a tension spring rack 8 and a motor, the tension spring rack 8 is arranged in the middle of the fixing seat and meshed with the rotary toothed plate 3, the motor drives the tension spring rack 8 to rotate to adjust the positions of the upper limiting part and the lower limiting part of the toothed plate, and the upper limiting part is lowered to enable the extension length of the elastic part 4 to be increased when the gripper assembly 11 ascends.
The upper limiting part and the lower limiting part are respectively an upper protruding block 2.1 and a lower protruding block 2.2 which protrude outwards from the periphery of the rotary toothed plate 3. As shown in the figure, one side of the rotary toothed plate 3 is meshed with the tension spring rack 8, and the two sides of the periphery outside the meshing of the rotary toothed plate 3 are provided with an upper lug 2.1 and a lower lug 2.2.
When the upper protruding block 2.1 and the lower protruding block 2.2 of the rotary toothed plate 3 do not control the pull spring plate protruding column 1.1, the pull spring plate 1 moves up and down along with the gripper assembly 11, and the pulling force is the lightest at the moment. When the rotary toothed plate 3 rotates by an angle in time, the pull spring plate convex column 1.1 is abutted against the lower convex block 2.2 of the pull spring toothed plate, the pull-down is controlled by the rotary toothed plate 3, the stroke is limited, the stroke is controllable, and the pulling force is unchanged. When the rotary toothed plate 3 rotates by an angle in the reverse direction, the pull spring plate convex column 1.1 is abutted against the upper convex block 2.1 of the pull spring toothed plate, the lifting is limited by the upper convex block 2.1 of the rotary toothed plate 3, and the pull spring can not move upwards along with the gripper assembly 11, and the pull spring acts at the moment. The extension and retraction of the tension spring can be controlled through the rotation angle of the rotary toothed plate 3, so that the traction force can be changed. The rotary toothed plate 3 is realized by driving the tension spring rack 8 to rotate through a motor, thereby driving the tension spring rack to rotate. The adjustable mechanism of the invention enables the invention to adjust the pulling force of the gripper assembly 11 according to different fabrics.
The gripper assembly 11 of the present invention moves as follows: the piston rod 9 pushes upwards to drive the gripper assembly 11 to rise, and just because of the action of tension spring tension, the gripper assembly 11 and the tension spring plate 1 rise simultaneously, when the tension spring plate 1 swings upwards until the convex column 1.1 abuts against the upper convex block 2.1, the gripper assembly 11 breaks away from the tension spring plate roller 7 to continue rising until the gripper assembly 11 is reset, the larger the spring force is during rising, and the larger the traction force is when the subsequent gripper assembly 11 descends; the piston rod 9 is reset, the gripper assembly 11 descends to the convex column 1.1 to abut against the lower limiting piece together with the tension spring mechanism after descending the tension spring mechanism through the elastic force of the elastic piece 4, the tension spring mechanism stops swinging downwards, and the descending maximum stroke of the gripper assembly 11 is limited.
The maximum descending travel of the control gripper of the mechanism comprises the following four descending positions of the gripper:
as shown in fig. 4, the gripper is at the highest position a and the gripper is not in operation.
As shown in fig. 5, the gripper extends out of the shield in the intermediate position B.
As shown in fig. 6, the gripper extends out of the guard plate and travels downward a distance in the intermediate position C.
As shown in fig. 7, the gripper is at the lowest position D, and the gripper extends out of the guard plate to travel to the lowest position.
The mechanism can control and adjust the tension of the spring, so as to control the traction of the gripper assembly 11, the lower the position of the upper lug 2.1 on the rotary toothed plate 3 is, the longer the spring is stretched, the larger the elastic force is when the gripper assembly 11 ascends, and the smaller the elastic force is, and the tension of the spring is adjusted according to the needs of different fabrics to adjust the traction force of the gripper.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (10)
1. The adjusting mechanism of the knitting machinery traction device comprises a fixed seat and a gripper assembly and is characterized by comprising an elastic piece, a tension spring mechanism and a rotary toothed plate which are arranged on the fixed seat, wherein the upper end of the elastic piece is fixed with the gripper assembly, the lower end of the elastic piece is fixed with the tension spring mechanism, the tension spring mechanism comprises a convex column, the rotary toothed plate is rotatably connected to the tension spring mechanism, the rotary toothed plate comprises an upper limiting piece and a lower limiting piece, and the convex column of the tension spring mechanism swings between the upper limiting piece and the lower limiting piece;
the convex column is abutted against the lower limiting piece, the elastic piece drives the gripper assembly to have limited pull-down stroke, and the pulling force of the elastic piece is unchanged; the convex column is abutted against the upper limiting part, the tension spring mechanism is limited by the upper limiting part, and the elastic part changes the traction force through the rotation angle of the rotary toothed plate.
2. The adjusting mechanism of a knitting machine pulling device according to claim 1, further comprising a piston rod, wherein the piston rod is located below the gripper assembly, the piston rod pushes upwards to drive the gripper assembly to ascend, and when the elastic piece drives the tension spring mechanism to swing upwards until the convex column abuts against the upper limiting piece, the gripper assembly is separated from the tension spring mechanism to ascend until the gripper assembly is reset; after the piston rod is reset, the gripper assembly is downwards abutted against the tension spring mechanism through the elastic force of the elastic piece, and then is lowered to the convex column together with the tension spring mechanism to be abutted against the lower limiting piece, and the tension spring mechanism stops swinging downwards.
3. The adjusting mechanism of a knitting machine pulling device according to claim 1, wherein the tension spring mechanism comprises a tension spring plate and a tension spring column, the tension spring column is arranged at the rear of the middle part of the tension spring plate, and one end of the elastic piece is arranged on the tension spring column.
4. An adjustment mechanism for a knitting machine pulling device as claimed in claim 1 or 3, characterized in that the tension spring mechanism comprises tension spring plate rollers rotatably connected to the rear of the front end of the tension spring plate, and the gripper assembly moves up and down against the tension spring plate rollers without disengaging the tension spring mechanism.
5. An adjustment mechanism for a knitting machine pulling device as defined in claim 3, characterized in that said tension spring mechanism further includes a tension spring plate axle mount for mounting the rotary toothed plate on the tension spring plate and for fixing the tension spring plate to the holder.
6. The adjusting mechanism of a knitting machine pulling device according to claim 1, further comprising a tension spring rack and a motor, wherein the tension spring rack is installed in the middle of the fixing seat and meshed with the rotary toothed plate, and the motor drives the tension spring rack to rotate to adjust the positions of the upper limiting piece and the lower limiting piece of the toothed plate.
7. The adjusting mechanism of a knitting machine pulling device as defined in claim 1 or 6, wherein the upper limiting member and the lower limiting member are respectively an upper projection and a lower projection protruding outward from the periphery of the rotary toothed plate.
8. An adjustment mechanism for a knitting machine pulling device as claimed in claim 1, characterized in that said elastic member is a tension spring.
9. An adjustment mechanism for a knitting machine pulling device as defined in claim 1, characterized in that said gripper assembly is mounted on a linear bearing, said gripper assembly sliding up and down along the linear bearing.
10. The adjustment mechanism for a knitting machine pulling device as defined in claim 4, characterized in that said tension spring plate roller is rotatably connected to the rear of the front end of the tension spring plate by tension spring plate roller screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910521646.7A CN110144670B (en) | 2019-06-17 | 2019-06-17 | Adjusting mechanism of knitting machinery traction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910521646.7A CN110144670B (en) | 2019-06-17 | 2019-06-17 | Adjusting mechanism of knitting machinery traction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110144670A CN110144670A (en) | 2019-08-20 |
| CN110144670B true CN110144670B (en) | 2024-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910521646.7A Active CN110144670B (en) | 2019-06-17 | 2019-06-17 | Adjusting mechanism of knitting machinery traction device |
Country Status (1)
| Country | Link |
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| CN (1) | CN110144670B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685063A (en) * | 2019-10-22 | 2020-01-14 | 宁波慈星股份有限公司 | Traction device of knitting machine |
| CN111676584A (en) * | 2019-12-10 | 2020-09-18 | 桐乡市巨星针织机械制造有限公司 | Motor-driven braided fabric traction device and traction method thereof |
| CN113026191B (en) * | 2021-03-25 | 2023-05-09 | 冯加林 | Pulling mechanism for flat knitting machine |
| CN113062038B (en) * | 2021-03-29 | 2022-04-01 | 宁波慈星股份有限公司 | Traction device of knitting machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB494104A (en) * | 1937-04-20 | 1938-10-20 | Albert Victor Clarke | Improvements in or relating to fabric take-down mechanism |
| GB1195372A (en) * | 1966-10-11 | 1970-06-17 | Raven Ltd C | Improvements in Circular Knitting Machine Take Down Mechanism |
| CN108642695A (en) * | 2018-07-04 | 2018-10-12 | 宁波慈星股份有限公司 | A kind of pulling device of knitting machine |
| CN210314717U (en) * | 2019-06-17 | 2020-04-14 | 宁波慈星股份有限公司 | Adjusting mechanism of knitting machine traction device |
-
2019
- 2019-06-17 CN CN201910521646.7A patent/CN110144670B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB494104A (en) * | 1937-04-20 | 1938-10-20 | Albert Victor Clarke | Improvements in or relating to fabric take-down mechanism |
| GB1195372A (en) * | 1966-10-11 | 1970-06-17 | Raven Ltd C | Improvements in Circular Knitting Machine Take Down Mechanism |
| CN108642695A (en) * | 2018-07-04 | 2018-10-12 | 宁波慈星股份有限公司 | A kind of pulling device of knitting machine |
| CN210314717U (en) * | 2019-06-17 | 2020-04-14 | 宁波慈星股份有限公司 | Adjusting mechanism of knitting machine traction device |
Also Published As
| Publication number | Publication date |
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| CN110144670A (en) | 2019-08-20 |
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