A full-fashioned front and back panel joining method and fabric

Abstract

The application relates to the technical field of knitting processing, in particular to a full-molding front and back piece connecting method and a fabric, which comprises the following steps: using a first yarn nozzle to knit a first row of the back piece from left to right, and stopping the yarn nozzle at the right side after knitting; using a needle turning system to turn one needle on the left side and one needle on the right side of the back piece to the front lower needle bed; using the first yarn nozzle to knit a second row of the back piece from right to left, and meanwhile, one needle on the left side and one needle on the right side are knitted on the front lower needle bed, and the yarn nozzle returns to the left side after knitting; using a second yarn nozzle to knit a first row of the front piece to the right, and stopping the yarn nozzle at the right side after knitting; using the needle turning system to turn one needle on the left side and one needle on the right side of the front lower needle bed to the back lower needle bed; using the second yarn nozzle to knit a second row of the front piece to the left, and meanwhile, one needle on the left side and one needle on the right side are knitted on the back lower needle bed, so that the yarn of the first yarn nozzle is entangled with the loops generated by the second yarn nozzle to form a knitted fabric, and the yarn nozzle returns to the left side after knitting. The knitting method saves the empty running of the machine head, and improves the knitting efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of knitting processing, in particular to a high-speed and efficient knitting method of different yarns, different colors or different material structures of front and back pieces (front and back sleeve pieces) for full forming one-line clothing process of woolen sweaters. BACKGROUND

[0002] The full forming one-line clothing process of woolen sweaters can be completed in one piece, and manual processes such as linking and sewing are saved. The use rate of wool yarn raw materials can reach almost 100%, which contributes to the reduction of resource waste and the realization of sustainable development while improving efficiency. Since the full forming one-line clothing process knits the front piece and the back piece together in the same knitting position, the front piece and the back piece (front and back) are usually knitted with the same yarn nozzle (the same yarn). In some products, different yarns are used to knit the front piece and the back piece (front and back), which improves the performance of the product. The front piece and the back piece (front and back) must be connected on both sides of the knitted fabric when different yarns are used to knit the front piece and the back piece (front and back). The previous knitting method is as follows: using a relatively forward yarn nozzle to knit the back piece (back); using a relatively backward yarn nozzle to knit the front piece (front); after each row of knitting of the front piece and the back piece (front and back), the two yarn nozzles are stopped on the same side to form yarn entanglement, and the yarn entanglement of the front and back is used to connect the front piece and the back piece (front and back).

[0003] The existing patent CN101545175A discloses a warp-knitted double-color jacquard seamless fabric knitting method, and the specific process flow is as follows: first, determine the basic knitting process, use one ground bar on each needle bed to knit the basic base fabric, and use two jacquard bars to knit the main body jacquard pattern and the front and back piece connection structure; second, determine the main body pattern shedding motion formed by each jacquard bar and the corresponding jacquard needle action information, and combine the basic action information of the corresponding jacquard needle; finally, determine the shedding motion and jacquard needle action information of the edge part of the front and back pieces, and use the superposition method.

[0004] The existing patent CN101487164A discloses a warp-knitted jacquard seamless fabric knitting method, and the specific process flow is as follows: first, determine the basic knitting process, for general warp-knitted seamless jacquard fabric, use one ground bar on each needle bed to knit the basic base fabric, and use one jacquard bar to knit the main body jacquard pattern and the front and back piece connection structure; second, determine the main body pattern shedding motion formed by the jacquard bar and the corresponding jacquard needle action information; finally, determine the shedding motion and jacquard needle action information of the edge part of the front and back pieces.

[0005] The aforementioned publicly available knitting method is characterized by its simple structure. However, each row of knitting for the front and back panels results in one idle knitting run, and these idle runs also consume overall knitting time. Therefore, the biggest drawback is that knitting the entire fabric generates a large number of idle knitting runs, thus reducing the overall knitting efficiency of the product. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the above-mentioned technical problems of this invention are mainly solved by the following technical solution: a method for connecting fully molded front and rear pieces, comprising the following steps:

[0007] Step 1: Using the first yarn feeder, knit the first row (5a) of the back piece from left to right. After knitting, stop the yarn feeder on the right side.

[0008] Step 2: Use the needle flipping system to flip one stitch on each side of the back piece to the front lower needle bed;

[0009] Step 3: Using the first yarn feeder, knit the second row (5b) of the back piece from right to left, while simultaneously knitting one stitch on each side of the front knitting bed. After finishing the knitting, return the yarn feeder to the left side.

[0010] Step 4: Using the second yarn feeder, knit the first row (5c) of the front piece to the right. After knitting, stop the yarn feeder on the right side.

[0011] Step 5: Use the needle flipping system to flip one stitch from each side of the front infeed needle bed to the back infeed needle bed;

[0012] Step 6: Using the second yarn feeder, knit the second row (5d) of the front piece to the left. At this time, one stitch of each loop on the left and right sides is on the back needle bed, so that the yarn from the first yarn feeder and the loop generated by the second yarn feeder will become entangled to form a knitted fabric. After the knitting is finished, the yarn feeder returns to the left side.

[0013] Preferably, the first yarn feeder and the second yarn feeder are different yarn feeders; the first yarn feeder is a No. 6 yarn feeder on the machine head; the second yarn feeder is a No. 4 yarn feeder on the machine head.

[0014] Preferably, the needle-turning system is a needle-turning system on a fully formed flat knitting machine.

[0015] Preferably, repeating steps one through six repeatedly will form a longitudinally extended woven fabric.

[0016] A fabric comprising front and back pieces, the front and back pieces being joined together by a fully formed front and back piece joining method.

[0017] The method for connecting the front and rear pieces of the fully formed fabric is described by the following formula for calculating the weaving time: T = 4 times * L / V; where V is the machine head moving speed and L is the weaving width.

[0018] The present invention can achieve the following effects:

[0019] This invention provides a method for connecting front and back pieces in a fully formed flat knitting machine. This method utilizes the needle-turning system on the fully formed flat knitting machine to connect the front and back pieces while knitting, eliminating the need for the machine head to run idle in the traditional method, improving knitting efficiency, and eliminating the need to consider the position of the front and back yarn feeders when knitting the front and back pieces. It also allows for free arrangement of yarn feeders in complex design patterns. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a conventional weaving method involved in an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the head travel trajectory in traditional Chinese weaving methods;

[0022] Figure 3 This is a schematic diagram of the fully-formed flat knitting machine equipment involved in the embodiments of the present invention;

[0023] Figure 4 This is a schematic diagram of the weaving method involved in the embodiments of the present invention;

[0024] Figure 5 This is a flowchart of the weaving method involved in the embodiments of the present invention;

[0025] Figure 6 This is a detailed flowchart of the weaving method involved in the embodiments of the present invention. Detailed Implementation

[0026] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0027] This invention uses a fully-fashioned flat knitting machine as the implementation platform, which has a knitting system, two needle-turning systems and several yarn feeders.

[0028] Example 1

[0029] A method for joining fully molded front and rear pieces includes the following steps:

[0030] Step 1: Knit the first row of the back piece from left to right using the first yarn feeder (see attached) Figure 6 In step 5a) (in this example, the first yarn feeder is used, but as mentioned earlier, any yarn feeder can be used) after weaving is completed, the yarn feeder stops on the right side;

[0031] Step 2: In the same knitting row mentioned above, use the turn-over system to turn one stitch on each side of the back piece to the front needle bed;

[0032] Step 3: Starting from right to left, knit the second row of the back piece using the first yarn feeder (see attached). Figure 6(5b) At the same time, one stitch on each side is knitted on the front knitting bed. The two stitches knitted on the front knitting bed on each side are purl stitches relative to the back piece. After knitting, the yarn feeder returns to the left side.

[0033] Step 4: Knit the first row of the front piece by moving the second yarn feeder to the right (see attached...) Figure 6 In step 5c (using the second yarn feeder in this example, but any yarn feeder can be used as mentioned earlier), the yarn feeder stops on the right side after the weaving is finished.

[0034] Step 5: In the same knitting row as described above, use the turn-over system to turn one stitch from each of the loops on the back left and right front knitting beds to the back knitting bed;

[0035] Step Six: Knit the second row of the front piece with the second yarn feeder moving to the left (see attached) Figure 6 (5d in the middle), at this time, one stitch on each of the left and right loops is on the back needle bed, causing the yarn of the second yarn feeder to become entangled with the yarn of the first yarn feeder, forming a knitted fabric (see attached). Figure 4 (4c and 4d in the middle), this winding connects the front and back pieces, and after the weaving is finished, the yarn feeder returns to the left side;

[0036] Repeat the above steps to weave repeatedly and form a longitudinally extended woven fabric.

[0037] The first yarn feeder and the second yarn feeder are different yarn feeders; the first yarn feeder is a No. 6 yarn feeder on the machine head; the second yarn feeder is a No. 4 yarn feeder on the machine head.

[0038] The needle-turning system is the needle-turning system on a fully formed flat knitting machine.

[0039] The head travel trajectory when using the weaving method of this invention is shown in the attached figure. Figure 6 As shown, the knitting head needs to run back and forth 4 times for each of the two rows of fabric before and after weaving. The formula for calculating the weaving time of the fabric is: T (in this invention) = 4 (times) * L / V; where V is the knitting head moving speed; and L is the weaving width.

[0040] Example 2

[0041] In this embodiment, the front and back pieces are woven using different yarns; the front piece is red, and the back piece is blue. During the weaving process, the back piece is woven using the first yarn feeder, and the front piece is woven using the second yarn feeder. The specific steps are as follows:

[0042] A method for joining fully molded front and rear pieces includes the following steps:

[0043] Step 1: Knit the first row of the back piece from left to right using the first yarn feeder (see attached) Figure 6 In step 5a) (in this example, the first yarn feeder is used, but as mentioned earlier, any yarn feeder can be used) after weaving is completed, the yarn feeder stops on the right side;

[0044] Step 2: In the same knitting row mentioned above, use the turn-over system to turn one stitch on each side of the back piece to the front needle bed;

[0045] Step 3: Starting from right to left, knit the second row of the back piece using the first yarn feeder (see attached). Figure 6 (5b) At the same time, one stitch on each side is knitted on the front knitting bed. The two stitches knitted on the front knitting bed on each side are purl stitches relative to the back piece. After knitting, the yarn feeder returns to the left side.

[0046] Step 4: Knit the first row of the front piece by moving the second yarn feeder to the right (see attached...) Figure 6 In step 5c (using the second yarn feeder in this example, but any yarn feeder can be used as mentioned earlier), the yarn feeder stops on the right side after the weaving is finished.

[0047] Step 5: In the same knitting row as described above, use the turn-over system to turn one stitch from each of the loops on the back left and right front knitting beds to the back knitting bed;

[0048] Step Six: Knit the second row of the front piece with the second yarn feeder moving to the left (see attached) Figure 6 (5d in the middle), at this time, one stitch on each of the left and right loops is on the back needle bed, causing the yarn of the second yarn feeder to become entangled with the yarn of the first yarn feeder, forming a knitted fabric (see attached). Figure 4 (4c and 4d in the middle), this winding connects the front and back pieces, and after the weaving is finished, the yarn feeder returns to the left side;

[0049] Repeat the above steps to weave repeatedly and form a longitudinally extended woven fabric.

[0050] Example 3

[0051] In this embodiment, the front and back pieces are woven using the same yarn, but with different weave structures. The front piece uses a plain knit weave, while the back piece uses a rib knit weave. During the knitting process, the same yarn feeder is used for both the front and back pieces. The specific steps are as follows: A method for connecting fully formed front and back pieces includes the following steps:

[0052] Step 1: Knit the first row of the back piece from left to right using the first yarn feeder (see attached) Figure 6 In step 5a) (in this example, the first yarn feeder is used, but as mentioned earlier, any yarn feeder can be used) after weaving is completed, the yarn feeder stops on the right side;

[0053] Step 2: In the same knitting row mentioned above, use the turn-over system to turn one stitch on each side of the back piece to the front needle bed;

[0054] Step 3: Starting from right to left, knit the second row of the back piece using the first yarn feeder (see attached). Figure 6 (5b) At the same time, one stitch on each side is knitted on the front knitting bed. The two stitches knitted on the front knitting bed on each side are purl stitches relative to the back piece. After knitting, the yarn feeder returns to the left side.

[0055] Step 4: Knit the first row of the front piece by moving the second yarn feeder to the right (see attached...) Figure 6 In step 5c (using the second yarn feeder in this example, but any yarn feeder can be used as mentioned earlier), the yarn feeder stops on the right side after the weaving is finished.

[0056] Step 5: In the same knitting row as described above, use the turn-over system to turn one stitch from each of the loops on the back left and right front knitting beds to the back knitting bed;

[0057] Step Six: Knit the second row of the front piece with the second yarn feeder moving to the left (see attached) Figure 6 (5d in the middle), at this time, one stitch on each of the left and right loops is on the back needle bed, causing the yarn of the second yarn feeder to become entangled with the yarn of the first yarn feeder, forming a knitted fabric (see attached). Figure 4 (4c and 4d in the middle), this winding connects the front and back pieces, and after the weaving is finished, the yarn feeder returns to the left side;

[0058] Repeat the above steps to weave repeatedly and form a longitudinally extended woven fabric.

[0059] Example 4

[0060] In this embodiment, the front and back pieces are woven using different yarns; the front piece is made of red wool yarn, and the back piece is made of blue acrylic yarn. During the weaving process, the back piece is woven using a first yarn feeder, and the front piece is woven using a second yarn feeder. The specific steps are as follows: A method for connecting fully formed front and back pieces includes the following steps:

[0061] Step 1: Knit the first row of the back piece from left to right using the first yarn feeder (see attached) Figure 6 In step 5a) (in this example, the first yarn feeder is used, but as mentioned earlier, any yarn feeder can be used) after weaving is completed, the yarn feeder stops on the right side;

[0062] Step 2: In the same knitting row mentioned above, use the turn-over system to turn one stitch on each side of the back piece to the front needle bed;

[0063] Step 3: Starting from right to left, knit the second row of the back piece using the first yarn feeder (see attached). Figure 6 (5b) At the same time, one stitch on each side is knitted on the front knitting bed. The two stitches knitted on the front knitting bed on each side are purl stitches relative to the back piece. After knitting, the yarn feeder returns to the left side.

[0064] Step 4: Knit the first row of the front piece by moving the second yarn feeder to the right (see attached...) Figure 6 In step 5c (using the second yarn feeder in this example, but any yarn feeder can be used as mentioned earlier), the yarn feeder stops on the right side after the weaving is finished.

[0065] Step 5: In the same knitting row as described above, use the turn-over system to turn one stitch from each of the loops on the back left and right front knitting beds to the back knitting bed;

[0066] Step Six: Knit the second row of the front piece with the second yarn feeder moving to the left (see attached) Figure 6 (5d in the middle), at this time, one stitch on each of the left and right loops is on the back needle bed, causing the yarn of the second yarn feeder to become entangled with the yarn of the first yarn feeder, forming a knitted fabric (see attached). Figure 4 (4c and 4d in the middle), this winding connects the front and back pieces, and after the weaving is finished, the yarn feeder returns to the left side;

[0067] Repeat the above steps to weave repeatedly and form a longitudinally extended woven fabric.

[0068] Comparative example:

[0069] Traditional woven fabric joining method: The weaving process is as follows (refer to the machine head travel trajectory diagram, attached). Figure 2 )

[0070] Step 1: Stop the yarn feeders for both the front and back pieces on the left side of the fabric; use the relatively forward yarn feeder to knit the back piece (back section) to the right, referring to the attached diagram. Figure 2 2a; The nose of the aircraft runs empty and returns to the left side, see attached diagram. Figure 2 2b; Using a relatively late yarn feeder, knit the front piece (front section) to the right, with attached... Figure 2 2c; (At this point, both yarn feeders remain on the right side, forming a yarn entanglement on the right side); Use the relatively forward yarn feeder to knit the back piece (rear section) to the left, refer to the attached diagram. Figure 2 2d; the nose of the aircraft runs empty and returns to the right side, attached. Figure 2 2e; Using a relatively late yarn feeder, knit the front piece (front section) to the left, with attached... Figure 2 2f; (At this time, the two yarn feeders remain on the left side, forming yarn entanglement on the left side). Therefore, the characteristic of the traditional method is that the structure is simple, but every time a row of front and back pieces is woven, the machine head will run empty once. The empty running of the machine head without weaving also consumes the overall weaving time.

[0071] The formula for calculating the weaving time for traditional woven fabric joining methods is: T (traditional) = 6 times * L / V;

[0072] Obviously, under the conditions of weaving the same width and the same head movement speed, T (conventional) is 6 / 4, or 1.5 times, of T (invention). Therefore, the weaving method of the present invention can improve weaving efficiency by 50%.

[0073] Two examples:

[0074] 1. Women's vest

[0075] Weaving width: 65cm;

[0076] Nose speed: 0.9 m / s

[0077] 2. Men's pullover

[0078] Knitting width: 122cm (including sleeves)

[0079] Nose speed: 0.8 m / s;

[0080] Women's vest; if calculated using the traditional formula: T (traditional) = 6 times * L / V; L is 65 cm; 0.9 m / s;

[0081] T (traditional) = 6 * 0.65 m / 0.9 m / s = 4.33 seconds;

[0082] T (this technology) = 4 * 0.65 m / 0.9 m / s = 2.88 seconds;

[0083] Men's pullover; if calculated using the traditional formula: T (traditional) = 6 times * L / V; L is 122 cm; 0.8 m / s;

[0084] T (traditional) = 6 * 1.22 m / 0.8 m / s = 9.15 s;

[0085] T (this technology) = 4 * 1.22 m / 0.8 m / s = 6.1 s;

[0086] Therefore, the weaving method of the present invention can improve weaving efficiency by 50%.

[0087] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0088] In summary, the above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. A method for connecting fully molded front and rear pieces, characterized in that, Includes the following steps: Step 1: Using the first yarn feeder, knit the first row (5a) of the back piece from left to right. After knitting, stop the yarn feeder on the right side. Step 2: Use the needle flipping system to flip one stitch on each side of the back piece to the front lower needle bed; Step 3: Using the first yarn feeder, knit the second row (5b) of the back piece from right to left, while simultaneously knitting one stitch on each side of the front knitting bed. After finishing the knitting, return the yarn feeder to the left side. Step 4: Using the second yarn feeder, knit the first row (5c) of the front piece to the right. After knitting, stop the yarn feeder on the right side. Step 5: Use the needle flipping system to flip one stitch from each side of the front infeed needle bed to the back infeed needle bed; Step 6: Using the second yarn feeder, knit the second row (5d) of the front piece to the left. At this time, one stitch of each loop on the left and right sides is on the back needle bed, so that the yarn from the first yarn feeder and the loop generated by the second yarn feeder will become entangled to form a knitted fabric. After the knitting is finished, the yarn feeder returns to the left side.

2. The method for connecting fully molded front and rear pieces according to claim 1, characterized in that, The first yarn feeder and the second yarn feeder are different yarn feeders; the first yarn feeder is a No. 6 yarn feeder on the machine head; the second yarn feeder is a No. 4 yarn feeder on the machine head.

3. The method for connecting fully molded front and rear pieces according to claim 1, characterized in that, The needle-turning system is the needle-turning system on a fully formed flat knitting machine.

4. The method for connecting fully molded front and rear pieces according to claim 1, characterized in that, Repeat steps one through six to weave repeatedly to form a longitudinally extended woven fabric.

5. The method for connecting fully molded front and rear pieces according to claim 1, characterized in that, The formula for calculating the weaving time of the woven fabric is: T = 4 times * L / V; where V is the speed of the machine head movement, in m / s; and L is the weaving width, in cm.

6. A fabric, characterized in that, It includes front and rear pieces, which are connected by the fully molded front and rear piece connection method according to any one of claims 1 to 3.

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