TWI672405B - Apparatus and method for feeding yarns - Google Patents

Abstract

A yarn feeding device for feeding a first yarn and a second yarn to a circular knitting needle. The yarn feeding device comprises a body and a yarn feeding rod. The body has a first limiting portion and a second limiting portion; the yarn feeding bar is disposed on the body, and has a first yarn hole for guiding the first yarn and a first yarn guiding the second yarn Second yarn hole. Wherein the first limiting portion and the second limiting portion respectively cause the feeding bar to be located at a first feeding position and a second feeding position, wherein the circular knitting needle is based on the feeding bar at a specific time A knitting position of the first and second yarns is determined by one of the first and second yarn feeding positions.

Description

 Yarn feeding device and method  

The present invention relates to a yarn feeding device; and more particularly to a yarn feeding device for feeding a first yarn and a second yarn to a circular knitting needle.

To meet the needs of human life, textile is a traditional industry. The weaving method of cloth products can be basically divided into plain weaving and knitting, while knitted fabrics are more flexible. In recent years, with the popularity of global leisure sports, the demand for knitted fabrics has increased greatly, becoming the new favorite of the garment industry. However, whether it is plain weaving and knitting, in order to make the fabric rich in color, it is inevitable that the dyeing and finishing process will be carried out after the completion of the fabric. The discharge of dye waste liquid from dyeing and finishing factories is one of the main points of supervision by environmental protection units for many years. Many dyeing and finishing companies are forced to close factories or migrate in the event that it is difficult to comply with local environmental regulations, resulting in a major impact on the industrial chain.

Colourful and richly patterned textiles are favored by the market. Conventional processes for the production of different color patterns are presented by means of embossing or embroidering. These methods inevitably produce unevenness on the fabric and destroy the smooth feel of the fabric. On the other side of the pattern on the fabric, the thread ends often appear, and it is easy for the yarn to be hooked up and become a flaw.

Therefore, how to make the knitted fabric produce a colorful pattern under the condition of maintaining a smooth touch, while avoiding the subsequent dyeing and finishing process, is a technical problem to be solved.

The yarn feeding device and method proposed by the invention are suitable for circular knitting and knitting, and become a separate color block through the weaving of the color yarn, and finally form a color pattern on the cloth surface without subsequent dyeing and finishing processing. Keeping the smooth feel of the fabric is an extremely innovative technological breakthrough.

According to an embodiment of the invention, a yarn feeding device is provided for feeding a first yarn and a second yarn to a circular knitting needle. The yarn feeding device comprises a body and a yarn feeding rod. The body has a first limiting portion and a second limiting portion; the yarn feeding bar is disposed on the body, and has a first yarn hole for guiding the first yarn and a first yarn guiding the second yarn Second yarn hole. Wherein the first limiting portion and the second limiting portion respectively cause the feeding bar to be located at a first feeding position and a second feeding position, wherein the circular knitting needle is based on the feeding bar at a specific time A knitting position of the first and second yarns is determined by one of the first and second yarn feeding positions.

According to another embodiment of the present invention, a method for feeding a first yarn and a second yarn to a circular knitting needle for knitting into a knitted fabric is proposed. The method comprises the steps of: providing a body having a magnetic control device; providing a yarn feeding rod disposed on the body, having a first yarn guiding position and a second yarn guiding position, and a first yarn guiding device a second yarn guiding point for guiding the first yarn and the second yarn respectively for knitting the circular knitting needle into the knitted fabric, wherein the first yarn guiding point and the knitted fabric constitute a first a yarn path, and the second yarn guiding point and the knitted fabric constitute a second yarn path; and through the magnetron, causing the circular knitting needle to be the first due to the yarn feeding rod at a specific time Corresponding to one of the second yarn-engaging positions, the relative position of one of the first and second yarn paths required for knitting the knitted fabric is determined.

According to another embodiment of the present invention, a yarn feeding device is proposed for feeding a first yarn and a second yarn to a circular knitting needle for knitting into a knitted fabric. The yarn feeding device comprises a body and a yarn feeding rod. The yarn feeding rod is disposed on the body, and has a first yarn guiding position and a second yarn guiding position, and a first yarn guiding point and a second yarn guiding point for respectively guiding the first yarn And the second yarn is woven into the knitted fabric, wherein the first yarn guiding point and the knitted fabric constitute a first yarn path, and the second yarn guiding point and the knitted fabric constitute a a second yarn path, wherein the circular knitting needle is determined to be the first required for knitting the knitted fabric due to the relative relationship between the first and the second yarn receiving positions of the yarn feeding rod at a specific time And a relative position of one of the second yarn paths.

The device and method utilize the selection and configuration of different color yarns in the weaving process, and can be used to produce the desired color and pattern on the front side of the knitted fabric, and has industrial applicability.

1‧‧‧First yarn

2‧‧‧second yarn

10/20/30‧‧‧Feeding device

11‧‧‧First yarn storage device

12‧‧‧Second yarn storage device

13/23/33‧‧‧ first hole

14/24/34‧‧‧second yarn hole

15/22/32‧‧‧feeding rod

16‧‧‧round knitting needle

17‧‧‧Knitted cloth

21/31‧‧‧ Ontology

25‧‧‧Electromagnetic components

27/37‧‧‧First Restrictions

28/38‧‧‧ Second Restriction Department

35‧‧‧DC motor

36‧‧‧ shaft

39‧‧‧ third aperture

101‧‧‧First path

102‧‧‧second path

The present invention can be further understood by the following detailed description: FIG. 1A/1B is a schematic diagram of an embodiment of the yarn feeding device and method of the present invention; and FIG. 2A/2B is a yarn feeding device and method of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 3A/3B is a schematic view showing still another embodiment of the yarn supplying device and method of the present invention; and Fig. 4 is a view showing the restricting portion and the yarn feeding position in the embodiment of Fig. 3A/3B.

The present invention will be fully understood from the following description of the embodiments of the present invention, which can be practiced by those skilled in the art.

The technique of circular knitting is to temporarily store a strand of yarn above the knitting machine and supply the yarn required for knitting from top to bottom. The knitting needle of the knitting machine picks up the yarn from bottom to top, and the yarn guides the yarn from the feeding yarn rod in the middle to a position convenient for the needle to be taken. The frequency of yarn introduction and hooking is very fast, up to hundreds or even thousands of movements per second. Multiple needles are used to continuously pick up the yarn and pull it underneath for weaving. Therefore, it is like a woven sweater, which is a circle and a circle, that is, the fabric is woven out layer by layer to form a cylindrical finished product. When the finished product is cut open, it becomes a piece of cloth.

Please refer to Figures 1A and 1B, which are a set of schematic views in accordance with an embodiment of the present invention. The yarn feeding device 10 in the drawing is configured to feed the first yarn 1 and the second yarn 2 to the circular knitting needle 16 to be woven into the lowermost knitted fabric 17. The first yarn 1 and the second yarn 2 are respectively derived from the first yarn storage device 11 and the second yarn storage device 12, and are disposed to pass through the first yarn hole 13 and the second yarn hole 14 of the yarn feeding bar 15, respectively. In other words, the first and second yarn holes 13 and 14 of the yarn supplying yarn 15 can be used to guide the first yarn 1 and the second yarn 2, respectively, to form a first yarn guiding point and a second yarn guiding point. The position of the first yarn hole 13 as shown in Fig. 1A is slightly forward with respect to the position of the second yarn hole 14, that is, the first path 101 from the first yarn guiding point to the knitted fabric 17 along the yarn 1 is slightly lower. From the second yarn guiding point along the yarn 2 to the second path 102 of the knitted fabric 17, so that when the circular knitting needle 16 picks up the two yarns from below, the first yarn 1 will be located in the second yarn 2 In front, this relative position is such that the combination of the first yarn 1 and the second yarn 2 will be the first yarn 1 appearing in front of the second yarn 2 (or the front side of the knitted fabric 17) while feeding the fabric, and The second yarn 2 appears behind the first yarn 1 (or referred to as the back side of the knitted fabric 17). According to an embodiment of the invention, the first yarn 1 and the second yarn 2 can be configured as colored yarns of different colors, such that the position at which the knitted fabric 17 is to be woven will present the front side as the color of the first yarn 1 and the back side. It is the color of the second yarn 2. According to another embodiment of the invention, the first yarn 1 and the second yarn 2 can be configured as yarns of different functional properties such that the first yarn 1 appears on the front side and the second yarn 2 appears on the back side.

According to the above description, those skilled in the art can understand that, conversely, the position of the first yarn hole 13 as shown in FIG. 1B is slightly rearward relative to the position of the second yarn hole 14, that is, from the first yarn guiding point. The first path 101 to the knitted fabric 17 along the yarn 1 is slightly higher than the second path 102 from the second yarn guide point to the knitted fabric 17 along the yarn 2, so when the circular knitting needle 16 is taken from below When the yarn is in the yarn, the first yarn 1 will be located behind the second yarn 2, and this relative position is such that the combination of the first yarn 1 and the second yarn 2 will be the first yarn 1 appearing in the second when feeding the yarn. The rear of the yarn 2 (or the face of the knitted fabric 17), and the second yarn 2 appear in front of the first yarn 1 (or referred to as the front side of the knitted fabric 17). In various embodiments, the circular knitting needle 16 can be hooked more than one yarn at a time, for example, in addition to the first yarn 1 and the second yarn 2 being a colored yarn, another functional yarn can be included (not shown) To provide the functional properties of the knitted fabric 17, such as elastic or conductive properties.

In summary, a concept of the present invention is to selectively arrange two different yarn-receiving positions on the path of the circular knitting needle when the knitting yarn is knitted, so that the yarn is drawn in the circular knitting needle. At a particular time of the line, the relative position of the first and second yarn paths 101/102 required to knit the knitted fabric is determined by the relative relationship of the two different yarn take-up positions. This relative position determines the knitting position of the first yarn and the second yarn. In accordance with this concept, two different embodiments utilizing a magnetic control scheme are listed below. A person skilled in the art can modify the description of the embodiments without departing from the scope of the invention.

Please refer to Figures 2A and 2B, which are a set of schematic views of an embodiment of a magnetically controlled yarn feeding device in accordance with the present invention. The magnetron feeding device 20 in the figure comprises a body 21 and a yarn feeding bar 22 disposed on the body 21. One end of the body 21 and the yarn supplying bar 22 respectively have a first yarn hole 23 and a second yarn hole 24 for guiding the first yarn (not shown) and the second yarn (not shown). The body 21 further has two electromagnetic elements 25 disposed at different positions, and the body 21 portion between the two electromagnetic elements 25 further has a first restricting portion 27 and a second restricting portion 28. Since the yarn supplying rod 22 has a ferromagnetic material, when one of the two electromagnetic elements 25 generates a magnetic force due to the current flowing, the yarn feeding rod 22 is attracted and abuts against the electromagnetic element 25 Adjacent first restriction portion 27 or second restriction portion 28. Taking FIG. 2A as an example, the feeding yarn bar 22 is attracted by the right electromagnetic element 25 and abuts against the first restricting portion 27, so that the first yarn hole 23 is located to the left of the second yarn hole 24; and in FIG. 2B, The yarn supplying yoke 22 is attracted by the left electromagnetic element 25 to abut against the second restricting portion 28, so that the first yarn hole 23 is located to the right of the second yarn hole 24. The electromagnetic element 25 can be an element such as an electromagnet or a coil. If you need to match the rhythm of a high-speed circular knitting machine, for example, up to hundreds of times per second or even thousands of times to change the frequency of the yarn configuration, you need to use a powerful electromagnet. According to an embodiment, the two ends of the yarn feeding bar 22 shown in FIG. 2A/2B are not limited at all, so that the right and left two electromagnetic elements 25 can be moved back and forth under the mutual attraction of the two electromagnetic elements 25; in another embodiment, The moving space of the upper end of the yarn supplying yoke 22 in Fig. 2A/2B can be slightly limited (not shown), so that the feeding yoke 22 can be oscillated back and forth under the mutual attraction of the left and right electromagnetic members 25.

Comparing Figures 2A/2B with reference to Figure 1A/1B, the yarn feeding rod 22 in Figure 2A can be said to be in the first yarn feeding position, and the yarn feeding rod 22 in Figure 2B can be said to be in the first a second feeding position, when the feeding bar 22 is in the first position, a first relative position is formed between the first yarn hole 23 and the second yarn hole 24; when the yarn feeding bar 22 is in the second position, the first yarn hole A second relative position is formed between the second aperture 24 and the second aperture 24, the first relative position being different from the second relative position, the opposite relationship being the opposite. The electronic signal can be selected to operate one of the electromagnetic elements 25 under a certain time, and the feeding rod 22 is controlled to one of the feeding positions, if the first yarn hole 23 and the second yarn hole 24 are respectively disposed with the first With a yarn 1 and a second yarn 2, the knitting position of the first yarn 1 and the second yarn 2 at that specific time can be determined.

Please refer to Figures 3A and 3B, which are a set of schematic views of another embodiment of a magnetically controlled yarn feeding device in accordance with the present invention. The magnetron feeding device 30 in the figure comprises a body 31 and a yarn feeding bar 32 disposed on the body 31. The yarn supplying bar 32 has a first yarn hole 33 for guiding the first yarn 1 and a second yarn hole 34 for guiding the second yarn 2, respectively. A DC motor 35 is disposed on the main body 31, and the yarn feeding bar 32 is coupled to the rotating shaft 36 of the DC motor 35. The DC motor 35 can be manipulated by a current signal to generate a magnetic force that causes the spindle 36 to rotate in a clockwise or counterclockwise direction, thereby causing the yarn feeding rod 32 to rotate in a clockwise or counterclockwise direction. The body 31 is further provided with a first restricting portion 37 and a second restricting portion 38 for restricting the rotation space of the yarn feeding bar 32, thereby causing the yarn supplying bar 32 to be located at the first yarn feeding position or the second yarn feeding position, respectively.

Referring to FIG. 4, which further shows a section along the section line AA' in FIGS. 3A and 3B, the first restricting portion 37 and the second restricting portion 38 on the body 31 restrict the rotational space of the feeding bar 32, thereby causing respectively The feed yarn bar 32 is located at the first yarn feeding position or the second yarn feeding position. Since the first yarn feeding position shown in Fig. 3A and the second yarn feeding position shown in Fig. 3B have a difference in the rotation angle of the yarn supplying bar 32, the first yarn holes 33 on both sides of the yarn feeding bar 32 are caused. Different from the relative position of the second yarn hole 34, when the yarn feeding bar 32 is at the first yarn feeding position, the first relative position is formed between the first yarn hole 33 and the second yarn hole 34; when the yarn feeding bar 32 is located at the first position In the second feeding position, a second relative position is formed between the first yarn hole 33 and the second yarn hole 34. The electronic signal can be used to select the DC motor 35 to operate at a particular time, and the yarn feeder 32 is controlled to one of the yarn feeding positions to determine the knitting position of the first yarn 1 and the second yarn 2 at that particular time.

The embodiment shown in Figs. 2A and 2B is an embodiment in which the electromagnetic yarn feeder causes the yarn feeding bar to be moved or left or right to be located at the first yarn feeding position or the second yarn feeding position, and the embodiments shown in Figs. 3A and 3B. The electromagnetic yarn feeder is used to rotate the yarn feeding rod in a clockwise or counterclockwise direction to be in the first yarn feeding position or the second yarn feeding position. Those skilled in the art will appreciate that in order to match the high speed operating rhythm of a circular knitting machine, for example up to hundreds or even thousands of replacement yarn configurations per second, conventional mechanical control mechanisms are no longer sufficient. It is necessary to use a sophisticated electronic signal through the magnetic control device provided by the present invention to match a circular knitting machine that operates at a high speed.

Referring to FIGS. 3A and 3B again, the first yarn hole 33 and the second yarn hole 34 on both sides of the yarn feeding bar 32 may be configured with color yarns of different colors, through the selection of the first yarn feeding position or the second yarn feeding position. The selected colored yarn is woven and appears on the front side of the specific position in the fabric, while the other colored yarn appears on the back of the specific position. According to another embodiment, the yarn supplying bar 32 may further be provided with a third yarn hole 39 for guiding a yarn having a functional property (not shown) such as an elastic yarn or a conductive yarn to allow the circular knitting needle 16 to be picked once. Three yarns.

According to another embodiment of the present invention, the yarn feeding rod 32 may be disposed on a DC motor 35 (for example, a stepping motor) having a specific rotation angle, and the electronic yarn signal may be respectively caused to cause the yarn feeding rod 32 to be located at the first yarn feeding position or the first Second yarn feeding position. In the present embodiment, since the rotation angle of the yarn feeding bar 32 can be directly controlled by the electronic signal, it is not necessary to use the first restricting portion 37 and the second restricting portion 38 to restrict the rotating space of the yarn feeding bar 32, so that the body 31 is on the body 31. The first restricting portion 37 and the second restricting portion 38 may not be disposed.

Through the above embodiments, the yarn selection device and method proposed by the present invention can use the arrangement of the color yarns to make the positions of the woven fabrics have preset colors during the process of weaving into a cloth, thereby eliminating the subsequent dyeing and finishing. The necessity of the procedure completely avoids the problem of waste liquid discharge caused by the dyeing and finishing process. In addition, the yarn woven by the yarn selection device and the method proposed by the invention has the same yarn quality when weaving in different parts, so that the material has a uniform touch and smooth, and there is no line which is often found in the crepe fabric. Head can be said to be a major innovation in textile technology.

Example

A yarn feeding device for feeding a first yarn and a second yarn to a circular knitting needle, comprising: a body having a first restricting portion and a second restricting portion; and a feeding rod Disposed on the body, and having a first yarn hole respectively guiding the first yarn and a second yarn hole guiding the second yarn, wherein the first restricting portion and the second restricting portion respectively cause The yarn feeding rod is located at a first yarn feeding position and a second yarn feeding position, wherein the circular knitting needle is in accordance with one of the first and second yarn feeding positions due to the yarn feeding rod at a specific time. A weaving position of the first and second yarns is determined.

2. The apparatus of embodiment 1, wherein: when the yarn feeding bar is in the first yarn feeding position, a first relative position is formed between the first yarn hole and the second yarn hole; When the feeding yarn bar is located at the second yarn feeding position, a second relative position is formed between the first yarn hole and the second yarn hole, wherein the first relative position is different from the second relative position.

3. The apparatus of embodiment 2 wherein: when the first relative position between the first aperture and the second aperture is the first relative position, the first yarn is woven at a front position and the second yarn Weaved in a reverse position.

4. The device of embodiment 1, further comprising a magnetic control device disposed on the body, wherein the magnetic control device causes the yarn feeding bar to be located at the first yarn feeding position and the second according to an electronic signal One of the feeding positions.

5. A method for feeding a first yarn and a second yarn to a circular knitting needle for knitting into a knitted fabric, comprising: providing a body having a magnetic control device; providing a yarn feeding rod, and configuring And a first yarn guiding position and a second yarn guiding position, and a first yarn guiding point and a second yarn guiding point for respectively guiding the first yarn and the second yarn For knitting the circular knitting needle into the knitted fabric, wherein the first yarn guiding point and the knitted fabric constitute a first yarn path, and the second yarn guiding point and the knitted fabric constitute a second yarn path And the magnetic control device causes the circular knitting needle to be determined by the relative relationship between the first and the second yarn-receiving positions of the yarn feeding rod at a specific time, and is determined to be required for knitting the knitted fabric The relative position of one of the first and second yarn paths.

6. The method of embodiment 5 wherein the magnetron causes the yarn feeding bar to be in one of the first yarn take-up position and the second yarn take-up position in accordance with an electronic signal.

A yarn feeding device for feeding a first yarn and a second yarn to a circular knitting needle for knitting into a knitted fabric, comprising: a body; and a feeding yarn rod disposed on the body And having a first yarn guiding position and a second yarn guiding position, and a first yarn guiding point and a second yarn guiding point for respectively guiding the first yarn and the second yarn for the circle Woven needles are woven into the knitted fabric, wherein the first yarn guiding point and the knitted fabric constitute a first yarn path, and the second yarn guiding point and the knitted fabric constitute a second yarn path, and the circular knitting The needle is determined by the relative relationship between the first and second yarn paths required for knitting the knitted fabric due to the relative relationship between the first and the second yarn receiving positions of the yarn feeding bar at a specific time. .

8. The apparatus of embodiment 7, wherein: the first yarn path is higher than the second yarn path when the yarn feeding rod is in the first yarn receiving position; and when the yarn feeding rod is located In the second take-up position, the second yarn path is higher than the first yarn path.

9. The apparatus of embodiment 7, wherein: the first yarn is woven at a front side of the knitted fabric and the second yarn is woven at the first yarn receiving position A reverse position of the knitted fabric.

10. The device of embodiment 7, further comprising a magnetic control device disposed on the body, wherein the magnetic control device causes the yarn feeding bar to be located at the first yarn receiving position and the second according to an electronic signal One of the yarn feeding positions.

The present invention is disclosed in the above preferred embodiments, and is not intended to limit the scope of the present invention. Any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the scope of the present disclosure.

Claims (8)

A yarn feeding device for feeding a first yarn and a second yarn to a circular knitting needle, comprising: a body having a first restricting portion and a second restricting portion; and a feeding rod, configured On the body, and having a first yarn hole for guiding the first yarn and a second yarn hole for guiding the second yarn, wherein the first restricting portion and the second restricting portion respectively cause the feeding The yarn bar is located at a first yarn feeding position and a second yarn feeding position, and the circular knitting needle is determined according to one of the first and the second yarn feeding positions by the yarn feeding rod at a specific time. a knitting position of the first and second yarns, when the yarn feeding bar is located at the first yarn feeding position, a first relative position is formed between the first yarn hole and the second yarn hole, and the first yarn is Weaving in a front position and the second yarn is woven in a reverse position. The device of claim 1, wherein: when the yarn feeding bar is located at the second yarn feeding position, a second relative position is formed between the first yarn hole and the second yarn hole, wherein the The first relative position is different from the second relative position. The device of claim 1, further comprising a magnetic control device disposed on the body, wherein the magnetic control device causes the yarn feeding bar to be located at the first feeding position and the first according to an electronic signal One of the two feeding positions. A method for feeding a first yarn and a second yarn to a circular knitting needle for knitting into a knitted fabric, comprising: providing a body having a magnetic control device; providing a feeding yarn rod disposed at the a first yarn guiding position and a second yarn guiding position, and a first yarn guiding point and a second yarn guiding point for respectively guiding the first yarn and the second yarn to Weaving the circular knitting needle into the knitted fabric, wherein the first yarn guiding point and the knitting fabric Forming a first yarn path, and the second yarn guiding point and the knitted fabric constitute a second yarn path; and transmitting the magnetic knitting device, so that the circular knitting needle is caused by the yarn feeding rod at a specific time The first and the second yarn-engaging positions are in a relative relationship and are determined as a relative position of the first and second yarn paths required for knitting the knitted fabric. The method of claim 4, wherein the magnetron device causes the yarn feeding bar to be located at one of the first yarn take-up position and the second yarn take-up position according to an electronic signal. A yarn feeding device for feeding a first yarn and a second yarn to a circular knitting needle for knitting into a knitted fabric, comprising: a body; and a feeding yarn rod disposed on the body and having a first yarn guiding position and a second yarn guiding position, and a first yarn guiding point and a second yarn guiding point for respectively guiding the first yarn and the second yarn for the circular knitting needle Woven into the knitted fabric, wherein the first yarn guiding point and the knitted fabric constitute a first yarn path, and the second yarn guiding point and the knitted fabric constitute a second yarn path, and the circular knitting needle The yarn feeding rod has a relative relationship between the first and second yarn guiding positions at a specific time, and is determined as a relative position of the first and second yarn paths required for knitting the knitted fabric. The first yarn path is higher than the second yarn path when the yarn feeding rod is at the first yarn receiving position; and the second yarn path is high when the yarn feeding rod is located at the second yarn receiving position In the first yarn path. The device of claim 6, wherein: when the yarn feeding bar is located at the first yarn receiving position, the first yarn is woven on the knitted fabric The front position and the second yarn are woven at a reverse side of the knitted fabric. The device of claim 6, further comprising a magnetic control device disposed on the body, wherein the magnetic control device causes the yarn feeding bar to be located at the first yarn receiving position and the first portion according to an electronic signal One of the two yarn feeding positions.