TWI742551B - Needle selection device - Google Patents

Abstract

A needle selection device includes a base body, a drive circuit board, at least one coil core module and at least one needle selection plate module. The drive circuit board is installed onto the base body, the coil core module is installed in a mounting slot of the base body, and the coil core module is electrically connected to the drive circuit board. The coil core module includes two coil core elements, the needle selection plate module is protruded into an opening of the base body, and each needle selection plate module corresponds to a single switch plate position of a serrated screw, and the needle selection plate module includes two horizontally configured needle selection plates, and each needle selection plate corresponds to each respective coil core element. With the operation of the drive circuit board driving the coil core module, the two coil core elements control the two needle selection plates to selectively switch the switch plates, so that the needle selection device has the features of simple structure, small volume, high efficiency, and low manufacturing cost.

Description

Needle selection device

A needle selection device, in particular, refers to the technical field of selectively driving two horizontally arranged needle selectors to correspondingly operate a single pick of a flower tooth.

Press, the flower teeth of the existing circular knitting jacquard knitting machine are set on one side of the needle cylinder, and a pusher piece is sleeved above the flower teeth, and a knitting needle is supported on the pusher piece. The needle selection piece of the needle selector Whether the picks of the flower teeth are moved or not, the push needles are moved, and then the knitting needles are controlled to move up and down, so as to achieve the purpose of jacquard knitting.

Continuing with the existing needle selector structure, as shown in the first figure, it is a schematic diagram of the prior art needle selector structure. The needle selector 10 mostly adopts a piezoelectric needle selector or an electromagnetic needle selector. The needle selector 10 is currently designed as a single row or two rows of multiple needle selectors 102. Take these selectors 102 in two rows as an example. The selector jacks 102 in the two rows are arranged in a staggered manner, whether a piezoelectric needle selector or an electromagnetic needle selector is used to control these selector jacks 102 to swing, the piezoelectric ceramic plate of the piezoelectric needle selector or The coil core structure of the electromagnetic needle selector must be designed to be misaligned with these selector jacks 102, which also increases the overall volume of the needle selector; in addition, each selector jack 102 corresponds to a spline 12 The pick 122.

The structural design of the above-mentioned needle selector is quite complicated, and the overall volume cannot be reduced, and it has been unable to meet the demand for thinness and lightness pursued by the development of modern technology. Furthermore, the number of selector jacks 102 used is eight, twelve, sixteen or twenty-four according to application requirements, not only the overall volume of the needle selector 10 Because the selectors 102 are arranged in a staggered position, the number of the selectors 122 of the spline 12 to be used will increase accordingly. The greater the force required for the needle 102 to move the paddle 122, it is likely to cause damage to the spline 12, poor stability or inaccurate needle selection, etc., resulting in poor jacquard quality or damage to the spline 12. As a result, the production cost becomes higher. Therefore, how to solve the above-mentioned problems and deficiencies of the prior art is the subject that the related industry urgently wants to research and develop.

The main purpose of the present invention is to be suitable for circular knitting machines, using horizontally arranged two selectors to correspond to a single tooth pick, which can respond to the use of a large number of selectors and effectively reduce the overall volume of existing products , And can improve production efficiency.

The secondary purpose of the present invention is to increase the distance between the pick position of the flower tooth and the fulcrum, so that the needle selection device can control the position of the flower tooth with less effort, thereby improving the stability of the needle selection and the product quality. It has a competitive advantage in the market.

To achieve the above objective, the needle selection device of the present invention is suitable for a flower tooth, one side of the flower tooth is protrudingly provided with at least one pick, including a base, a driving circuit board, at least one coil core module, and at least one selection Needle piece group. The base body includes a connecting mounting slot and an opening, the drive circuit board is arranged on the base body, the coil magnetic core module is arranged in the mounting slot, and the coil magnetic core module is electrically connected to the drive circuit board. The coil magnetic core module is electrically connected to the drive circuit board. The group includes two-coil magnetic core elements. The selector jack group protrudes into the opening, and the selector jack group corresponds to the position of the selector. The selector jack group includes two selector jacks arranged horizontally, and each selector jack is corresponding to the position of each coil core element , According to the operation of the drive circuit board to drive the coil core module, the two coil core components correspondingly control the two needle selectors to selectively switch the picks.

The following detailed descriptions are given through specific examples, and it will be easier to understand the purpose, technical content, characteristics and effects of this creation.

10: Needle selector

102: Needle selector

12: Flower tooth

122: pick

124: Fulcrum

2: Needle selection device

14: Seat

142: installation slot

144: open

146, 146’: fixed plate

1462, 1462’: gap

148: limit plate

1482a, 1482b: recess

16: drive circuit board

18: Coil core module

182, 184: Coil core element

1822: iron core

1824: electromagnetic coil

20: Needle selection group

202, 204: needle selector

2022: body

2024: cutter head

2026, 2028: magnetic components

2027: pivot hole

22: Pivot element

24: Flower tooth

242: Pick

244: fulcrum element

The first figure is a schematic diagram of the structure of the prior art needle selector.

The second figure is a schematic diagram of the structure of the present invention.

The third figure is an exploded view of the second figure.

The fourth figure is a partial enlarged view of the present invention.

The fifth figure is a schematic diagram of the structure of the needle selector of the present invention.

The sixth figure is an exploded view of the fifth figure.

The seventh figure is a cross-sectional view of the structure along the line A-A' in the fifth figure.

The eighth figure is a schematic diagram of the structure of the operating spline of the present invention.

The ninth figure is a schematic diagram of the structure of the local operating state of the present invention.

In order to solve the problem of the misalignment design of the needle selector of the existing needle selector, the number of applications of the needle selector is limited, and the overall volume cannot be reduced, and the force of the needle selection is increased due to the short force arm of the flower tooth , Which not only caused problems such as poor needle selection stability, but also easy damage to the flower teeth. After years of research and development, the inventor used innovative structural design to improve, and can replace the existing complex structure, the flower teeth are easy to wear and shorten the service life or It is the superiority of many applications such as damage to improve the criticism of existing products. The follow-up will introduce in detail how this creation uses a needle selection device to achieve the most efficient functional requirements.

Please refer to the second, third and fourth figures at the same time. The second figure is a schematic diagram of the structure of the present invention; the third figure is an exploded view of the structure of the second figure; the fourth figure is a partial enlarged view of the present invention . The needle selection device 2 includes a base 14, a driving circuit board 16, at least one coil core module 18 and at least one selection piece group 20. The base 14 includes a mounting slot 142, an opening 144, two symmetrical fixing plates 146, 146', and a limiting plate 148; the mounting slot 142 communicates with the opening 144, and the two fixing plates 146, 146' and the limiting plate 148 Installed at the opening 144 position. There are a plurality of symmetrical recesses 1482a, 1482b on both sides of the limiting plate 148, wherein the notch direction of the recesses 1482a is opposite to the recesses 1482b, and the two fixing plates 146, 146' are respectively pressed against one of the limiting plates 148 Both sides. In detail, the fixing plate 146 abuts against the notch direction position of the recesses 1482a of the limiting plate 148, so that a limiting space is formed between each recess 1482a and the fixing plate 146; in the same way, the fixing plate 146' abuts against the limit. The position of the recesses 1482b of the positioning plate 148 in the notch direction makes a limit space formed between each recess 1482b and the fixing plate 146'. Among them, the two fixing plates 146, 146' and the limiting plate 148 can be fixed to the opening 144 of the base 14 by any method such as screw locking, clamping, or welding. To increase the limit space range, a notch 1462 can be designed in the fixing plate 146, and the notch 1462 corresponds to the position of the recesses 1482a; the fixing plate 146' is designed with a notch 1462', and the notch 1462' corresponds to the recesses 1482b. The position, so as to increase the desire for movement of the needle selector group 20 in the limited space, will be described in detail later.

The driving circuit board 16 is disposed on the base 14, the coil core module 18 is disposed in the mounting slot 142, and the coil core module 18 is electrically connected to the driving circuit board 16. The coil core module 18 includes two coil core elements 182, 184. Each coil core element has the same structure. Take the coil core element 182 as an example. The coil core element 182 includes an iron core 1822 and an electromagnetic coil. At 1824, the electromagnetic coil 1824 is wrapped around the iron core 1822, and the electromagnetic coil 1824 is electrically connected to the driving circuit board 16.

The selector jack group 20 protrudes from the opening 144. The selector jack group 20 includes two selector jacks 202, 204 arranged horizontally. Each selector jack 202, 204 is correspondingly disposed on each coil core element 182, 184 Position; in other words, the selector jack 202 is correspondingly arranged on the coil magnetic core element 182 and located on the same horizontal plane, and the selector jack 204 is correspondingly arranged on the coil magnetic core element 184 and located on the same horizontal plane.

The detailed structure of the selector jacks 202 and 204 will continue to be described. Please refer to the fifth, sixth and seventh figures at the same time. The fifth figure is a schematic diagram of the selector jack of the present invention; An exploded view of the structure; Figure 7 is a cross-sectional view of the structure of Figure 5 along the AA' section line. Each of the selector jacks 202 and 204 has the same structure, and the similarities will not be repeated. In this embodiment, the selector jack 202 is taken as an example for description. The selector jack 202 includes a main body 2022, a cutter head 2024, two magnetic elements 2026 and 2028, and a pivot hole 2027; the cutter head 2024 and the magnetic element 2026 are respectively disposed at opposite ends of the main body 2022. Among them, the two magnetic elements 2026 and 2028 are magnets with N and S magnetic poles respectively. The two magnetic elements 2026 and 2028 are arranged adjacent to each other to make the magnetic poles of the two magnetic elements 2026 and 2028 opposite.

The main body 2022 further has a accommodating portion 2029, and the two magnetic elements 2026 and 2028 are disposed in the accommodating portion 2029. As shown in Figure 4, the selector jack set 20 further includes a pivot element 22. Since the two horizontally arranged selector jacks 202 and 204 respectively have pivot holes 2027, the pivot element 22 is pivoted in series It is connected to the pivot hole 2027 of the two selector jacks 202 and 204 so that the two selector jacks 202 and 204 can act on the same pivot element 22. Among them, the cutter head 2024 of each needle selector 202, 204 is accommodated in the limit space and protrudes outside the two fixing plates 146, 146' and the limit plate 148, and the width of the cutter head 2024 is smaller than the limit space The width of the cutter head 2024 in the limit space is sufficient for reciprocating yaw movement.

After understanding the component composition and assembly method of the present invention from the above, please refer to the fourth, eighth and ninth figures at the same time. Schematic diagram of the structure of the local operating state. The needle selection device 2 is suitable for a flower tooth 24, one side of the flower tooth 24 is convexly provided with at least one pick 242, and the other side of the flower tooth 24 is convexly provided with a point element 244 at a lower position. In this embodiment, the operation of the needle selector 2 is controlled by electronic technology. A plurality of selector jacks 20 can be provided according to the needs. Each selector jack 20 includes two selector jacks 202 and 204. In the embodiment, sixteen selector jacks 202 and 204 are taken as an example. These selector jacks 202, 204 are arranged at intervals and arranged in two rows, that is, the selector jacks 202 of each group of selector jack group 20 are arranged in a row at intervals, and the selector jacks 204 of each group of selector jack group 20 are arranged in a row at intervals. They are arranged in a row at intervals, so that the selector jacks 202 and 204 in each row are located on the same horizontal plane. borrow The two selectors 202 and 204 are a group of single selectors 242 that selectively control the spline 24. Although only one selector 242 is drawn in the eighth figure, sixteen selectors 202 are used in this embodiment. 204, there will be eight picks 242 on the flower teeth 24, and so on. In this way, not only the overall volume of the needle selection device 2 can be effectively reduced, but also the structure design is simpler, and the number of the designed picks 242 only needs half of the current picks 242 of the flower teeth 24. It is worth noting that the pick 242 of the flower tooth 24 is reduced by half, and the distance between the position of the pick 242 of the flower tooth 24 and the fulcrum element 244 can be increased, so that the selectors 202 and 204 can control the pick of the flower tooth 24. The 242 position can save effort, thereby reducing the wear or damage of the paddle 242, so as to extend the service life of the spline 24.

The driving circuit board 16 correspondingly outputs the knitting needle selection control signal according to the fabric pattern data transmitted by the computer, and accordingly drives the multiple coil core modules 18 to operate, that is, to control the electromagnetic coil 1824 of the two-coil core elements 182, 184 to operate. The corresponding selector jacks 202 and 204 are driven by an electromagnetic method to deflect, so that the two-coil magnetic core elements 182 and 184 correspondingly control the selector jacks 202 and 204 in the two rows to selectively toggle the selector 242 Operation, and then actuate the knitting needles of the knitting device (not shown in the figure) to knit the desired pattern.

In this embodiment, the coil core element 182 controls the selector jack 202 to deflect as an example. According to the knitting needle selection control signal, the coil core module 18 passes through the electromagnetic coil 1824 of the coil core element 182 to switch the N and S magnetic poles of the two magnetic elements 2026 and 2028, so that the two magnetic elements 2026 , 2028 is driven by the attraction and repulsion force to drive the needle selector 202 to swing back and forth to achieve the function of needle selection.

In summary, the present invention can solve the problems and deficiencies of the prior art. The key technology of the present invention lies in the use of horizontally arranged two selectors to correspond to the picks of a single flower tooth, which can cope with the use of a large number of selectors, not only It can improve production efficiency, save time, effort, and improve the stability of needle selection, thereby solving the problem of knitting squandering due to damage to the teeth, effectively improving product yield, and having a competitive advantage in the market.

Only the above are only the preferred embodiments of this creation, and they are not used to limit the scope of implementation of this creation. Therefore, all equivalent changes or modifications made in accordance with the characteristics and spirit of the application scope of this creation shall be included in the scope of patent application of this creation.

2: Needle selection device

14: Seat

142: installation slot

144: open

146, 146’: fixed plate

1462, 1462’: gap

148: limit plate

1482a, 1482b: recess

16: drive circuit board

18: Coil core module

20: Needle selection group

202, 204: needle selector

Claims (7)

A needle selecting device is suitable for a flower tooth, one side of the flower tooth is protrudingly provided with at least one pick, including: a base body, including a communicating mounting groove and an opening; and a driving circuit board, arranged on the base On the body; at least one coil core module is disposed in the mounting slot, and the coil core module is electrically connected to the drive circuit board, the coil core module includes two coil core elements; and at least one The selector jack group protrudes in the opening, and the selector jack group corresponds to the position of the selector. The selector jack group includes two selector jacks arranged horizontally, and each selector jack is corresponding to each According to the position of the coil core element, the coil core module is driven to operate according to the drive circuit board, so that the two coil core elements correspondingly control the two selector jacks to selectively toggle the selector; Each of the selector jacks includes a main body, a cutter head, and two magnetic elements. The cutter head and the two magnetic elements are respectively disposed at opposite ends of the main body. The two magnetic elements are arranged adjacent to each other to make the two magnetic elements The poles are opposite. The needle selection device according to claim 1, wherein when the number of the selector jack groups is plural, the selector jacks are arranged at intervals and arranged in two rows, and the selector jacks in each row are located on the same horizontal plane. The needle selection device according to claim 1, wherein the main body further has a accommodating part, and the two magnetic elements are arranged in the accommodating part. The needle selection device according to claim 1, wherein the selector jack group further includes a pivot element, the second selector jacks arranged horizontally each have a pivot hole, and the pivot element is pivotally connected to the pivot In the hole, the two selector jacks are connected by the pivot element. The needle selection device according to claim 1, wherein the seat body further includes two symmetrical fixing plates and a limiting plate, the two fixing plates and the limiting plate are installed at the opening position, and two of the limiting plates The side end has a plurality of symmetrical recesses, and the two fixing plates respectively abut against the two side ends of the limiting plate, so that a limiting space is formed between each of the recesses and the two fixing plates. The needle selection device according to claim 5, wherein a cutter head of each of the needle selection jacks is accommodated in the limit space. The needle selection device according to claim 1, wherein each of the coil magnetic core elements includes an iron core and an electromagnetic coil, the electromagnetic coil is wound around the iron core, and the electromagnetic coil is electrically connected to the driving circuit board.

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