Loop transfer needles, loop transfer needle set and loop transfer hosiery machine

Abstract

The application discloses a transfer needle, a transfer needle group and a transfer hosiery machine. The transfer needle comprises a needle body and a needle tongue. The upper part of the needle body is provided with a needle hook, and the lower part of the needle body is provided with a needle butt. The needle tongue is rotatably installed on the needle body and used for cooperating with the needle hook. The needle body is provided with a transfer part which is arranged on one side below the needle tongue. The transfer part forms a through space which is used for allowing the adjacent transfer needle on the side of the transfer part to pass through upwards and downwards. Compared with the prior art, the application does not need to additionally arrange the transfer needle on the needle groove, avoids the space disadvantage of the traditional transfer needle which needs to occupy half of the needle groove of the needle cylinder, and under the same size, the number of the transfer needles arranged on the needle cylinder is more, and the transfer needle on each needle groove can realize the purpose of transferring the loop.

Description

Technical Field

[0001] This invention relates to the field of knitting machinery technology, specifically to a transfer needle, a transfer needle assembly, and a transfer sock machine. Background Technology

[0002] A sock knitting machine includes a cylinder, a transfer cam assembly, and an automatic stitch-sewing device. The outer surface of the cylinder has several longitudinal needle grooves, within which transfer needles and knitting needles are installed. The knitting needles move up and down within the needle grooves, participating in the knitting process. Through the interaction between the knitting needles and the yarn, the yarn forms loops, ultimately creating a complete sock, and the sock cuff is automatically sewn shut. During the knitting process, according to the pattern design requirements, a specific loop is transferred from one knitting needle to another. This transfer is accomplished by the transfer cam assembly driving the transfer needles to complete the transfer of the loop from one knitting needle to another adjacent knitting needle; this action is called loop transfer.

[0003] For example, patent document CN101939475A discloses a transfer needle, which includes a needle bar with two symmetrical elastic plates on it. The elastic plates can open or close relative to the needle bar, thereby allowing the needle tip of the knitting needle to be placed into the space between the elastic plates and the needle bar, realizing the transfer of loops between the knitting needle and the transfer needle. This technical solution has two disadvantages: first, the elastic plates are difficult to manufacture; second, each transfer needle must have two elastic plates. Although it is defined as "at least one" elastic sheet, in reality, to transfer the loop from the first needle to the second needle, the two needles must be arranged on the left and right sides of the transfer needle. The loop must first be transferred from the first needle to the transfer needle, and then to the second needle. Therefore, there must be elastic sheets on both sides of the transfer needle. If the loop itself is formed on the transfer needle, it is equivalent to using the transfer needle as a knitting needle. Its elastic sheet will inevitably occupy the needle cylinder space and affect the arrangement of other knitting needles. Therefore, this structure causes the transfer needle to occupy half of the needle slot of the needle cylinder, and the number of knitting needles that can be arranged in the needle cylinder of the same size is severely limited. Summary of the Invention

[0004] To address the above-mentioned problems and overcome at least one deficiency, this invention proposes a transfer needle, a transfer needle assembly, and a transfer sock machine.

[0005] The technical solution adopted in this invention is as follows:

[0006] A transfer needle includes a needle body and a needle tongue. The upper part of the needle body has a needle hook, and the lower part of the needle body has a needle heel. The needle tongue is rotatably mounted on the needle body for engaging with the needle hook. The needle body has a transfer portion offset to one side below the needle tongue. The transfer portion forms a passage space for adjacent transfer needles on the offset side of the transfer portion to pass through vertically.

[0007] This application describes a transfer needle that functions as both a knitting needle and a transfer needle. During use, it is sequentially installed in a needle cylinder with needle grooves. When transfer is not required, it can be used as a regular knitting needle. When transfer is needed, the loop is first hooked by the hook of a transfer needle. This transfer needle then moves upwards, covering the loop in the transfer section. Next, another transfer needle on the adjacent side (the side to which the transfer section of the first transfer needle is biased) moves upwards relative to the first transfer needle, passing through the transfer section's passageway from bottom to top. Simultaneously, the first transfer needle continues to move downwards, causing the loop to detach from the transfer section and enter the hook of another transfer needle. Compared to existing technologies, this application eliminates the need for additional transfer needles in the needle grooves, avoiding the drawback of traditional transfer needles occupying half the needle groove space of the needle cylinder. For the same size, the needle cylinder can accommodate more transfer needles, and each transfer needle in the needle groove can achieve the purpose of transferring the loop.

[0008] In one embodiment of the present invention, the needle body is formed by bending a two-dimensional sheet-like stamped part; The shift-loop knitting needle is obtained by sequentially heat-treating and polishing the needle body on which the needle tongue is mounted.

[0009] In one embodiment of the present invention, the moving ring portion is a U-shaped structure formed by stamping and bending, and the space enclosed by the U-shaped structure is the passage space.

[0010] In one embodiment of the present invention, the passage space has three vertically extending limiting sidewalls connected in sequence.

[0011] In one embodiment of the present invention, the upper end of the transfer portion forms a guide surface; in the horizontal direction, the closer the guide surface is to the needle body, the higher the height of the guide surface, and the uppermost end of the guide surface extends to the needle body.

[0012] This application also discloses a transfer needle assembly, comprising two transfer needles, wherein the transfer needles are the transfer needles described above; In the two transfer needles, one is the first needle and the other is the second needle. The second needle is on the side of the transfer part of the first needle. When the second needle moves up and down relative to the first needle, the hook and the latch of the second needle can pass through the transfer part of the first needle.

[0013] In one embodiment of the present invention, the transfer needle assembly has an initial state, a first state, a second state, a third state, and a fourth state; In the initial state of the transfer needle group, the first needle's latch is flipped downwards and opened, with the loop located at the latch; In the first state, the latch of the first needle is open, and the loop is located between the latch of the first needle and the loop transfer part of the first needle. When the transfer needle group switches from the initial state to the first state, the first needle moves up, and the coil opens the needle tab of the first needle; In the second state, the loop of the transfer needle assembly is located on the transfer portion of the first needle, and the second needle is below the transfer portion of the first needle; When the transfer needle group switches from the first state to the second state, the first needle continues to move upward, and the loop is wrapped around the transfer part of the first needle; When the transfer stitch group is in the third state, the hook of the second stitch is located above the transfer part of the first stitch, the loop is disengaged from the transfer part of the first stitch, and the loop is located at the hook of the second stitch; When the transfer needle group switches from the second state to the third state, the first needle moves down and the second needle moves up relative to the first needle. The loop is disengaged from the transfer part of the first needle and transferred to the hook of the second needle when the needle tongue is open. When the shift needle group is in the fourth state, the latch of the first needle opens and the loop is completely detached from the first needle; When the transfer needle assembly switches from the third state to the fourth state, the first needle moves down, and the coil moves up relative to the first needle. The coil first drives the first needle's latch to close, and then after it completely disengages from the first needle, the first needle's latch opens (both the first and second needles are installed on the needle groove on the outer wall of the syringe. The transfer needle assembly rotates under the drive of the syringe. When the coil disengages from the first needle, the latch will open under the action of centrifugal force). The coil remains in the hook of the second needle.

[0014] The transfer needle assembly of this application, starting from the initial state, can sequentially switch to the first state, the second state, the third state, and the fourth state to complete the transfer of the coil from the first needle to the second needle.

[0015] This application also discloses a transfer sock machine, including a needle cylinder and a transfer triangle assembly. The outer surface of the needle cylinder has a plurality of longitudinally arranged needle grooves, and transfer needles are installed on the needle grooves. Two adjacent transfer needles form the transfer needle group described above.

[0016] In one embodiment of the present invention, the outer diameter of the syringe is 3 inches to 6.5 inches.

[0017] In the transfer knitting machine of this application, the loops can be transferred in the same direction from the first transfer needle to the second transfer needle, and then from the second transfer needle to the third transfer needle, in this needle arrangement, thereby making the knitted eyelet structure larger.

[0018] In one embodiment of the present invention, the transfer sock machine is capable of knitting with one or multiple yarn feeds.

[0019] In one embodiment of the present invention, an automatic eyelet sewing device is further included, wherein the transfer triangle assembly is used to control the running trajectory of the needle heel of the transfer needle to complete the transfer coil action.

[0020] In one embodiment of the present invention, the needle body is provided with a transfer plate transfer needle connection position for the automatic eyelet sewing device at the part between the needle hook and the transfer loop part. When the sock machine moves to the sock cuff, the automatic eyelet sewing action can be realized on the sock machine.

[0021] The beneficial effects of this invention are as follows: The transfer needle of this application serves as both a knitting needle and a transfer needle. During use, it is sequentially installed in the needle slot of the needle cylinder. When transfer is not required, it can be used as a regular knitting needle. When transfer is needed, the loop is first hooked by the hook and latch of a transfer needle. Then, this transfer needle moves upward, so that the loop is wrapped in the transfer section. Then, another transfer needle on the adjacent side (the side to which the transfer section of this transfer needle is biased) moves upward relative to this transfer needle, passing through the passage space of the transfer section of this transfer needle from bottom to top. Simultaneously, this transfer needle continues to move downward, causing the loop to detach from the transfer section and enter the hook of another transfer needle. Compared with the prior art, this application eliminates the need for additional transfer needles on the needle slot, avoiding the drawback of traditional transfer needles occupying half of the needle slot space on the needle cylinder. For the same size, the needle cylinder can accommodate more transfer needles, and each transfer needle on the needle slot can achieve the purpose of transferring the loop. Attached Figure Description

[0022] Figure 1 This is the front view of the shift stitch; Figure 2 This is a side view of the shift stitch; Figure 3 This is a schematic diagram of a needle cylinder equipped with two transfer needles; Figure 4 This is a schematic diagram of the transfer needle assembly in the first state; Figure 5 This is a schematic diagram of the transfer needle assembly in the second state; Figure 6 This is a diagram showing the second stitch of the transfer stitch group moving up into the transfer section of the first stitch; Figure 7 This is a schematic diagram of the transfer needle assembly in the third state; Figure 8 This is a schematic diagram of the transfer needle assembly in the fourth state; Figure 9 This is a schematic diagram of a needle cylinder equipped with two transfer needles having a transfer section offset to the right.

[0023] The transfer needle assembly has an initial state, a first state, a second state, a third state, and a fourth state. The labels for the attached figures are as follows: 1. Transfer needle; 1a. First stitch; 1b. Second stitch; 11. Needle body; 111. Needle hook; 112. Needle heel; 113. Transfer section; 1131. Through space; 1132. Guide surface; 12. Needle tongue; 2. Loop; 3. Needle barrel; 31. Needle groove. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] The present invention will now be described in detail with reference to the accompanying drawings.

[0028] like Figure 3 As shown, this application uses the posture of the knitting needle 1 mounted on the needle cylinder 3 as the coordinate system, with the direction towards the axis of the needle cylinder 3 as rear, and the direction away from the axis of the needle cylinder 3, i.e., towards the observer, as front; from the observer's perspective, Figure 3 In the middle, the transfer part 113 of the transfer needle 1 is set to the left; as for up, down, high, and low, they are also defined from the observer's perspective.

[0029] like Figure 1 and 2As shown, a transfer needle 1 includes a needle body 11 and a needle tongue 12. The upper part of the needle body 11 has a needle hook 111, and the lower part of the needle body 11 has a needle heel 112. The needle tongue 12 is rotatably mounted on the needle body 11 for engaging with the needle hook 111. The needle body 11 has a transfer portion 113 offset to one side below the needle tongue 12. The transfer portion 113 forms a through space 1131, which is used for adjacent transfer needles 1 on the offset side of the transfer portion 113 to pass through vertically.

[0030] The transfer needle 1 of this application serves as both a knitting needle and a transfer needle. When in use, it is sequentially installed in a needle cylinder 3 with a needle groove 31. When transfer is not required, it can be used as a regular knitting needle. When transfer is required, the loop 2 is first hooked by the hook 111 of a transfer needle 1. Then, the transfer needle 1 moves upward, so that the loop 2 is wrapped in the transfer section 113. Then, another transfer needle 1 on the adjacent side (the side to which the transfer section 113 of the transfer needle 1 is biased) moves upward relative to the transfer needle 1, passing through the passage space 1131 of the transfer section 113 of the transfer needle 1 from bottom to top. At the same time, the transfer needle 1 continues to move downward, so that the loop 2 is disengaged from the transfer section 113 and enters the hook 111 of another transfer needle 1. Compared with the prior art, this application does not require additional transfer needles on the needle groove 31, thus avoiding the drawback of traditional transfer needles occupying half of the space of the needle groove 31 in the needle cylinder 3. Under the same size, the needle cylinder 3 can accommodate more transfer needles 1, and each transfer needle 1 on the needle groove 31 can achieve the purpose of transferring the loop 2.

[0031] In practical applications, the position of the shifting part 113 can be set as needed. For example, preferably, it can be located in the upper middle part of the needle body 11.

[0032] In this application, "biased to one side" refers to a setting biased to the left or to the right. For example... Figure 3 and 4 As shown, when biased to the left, the passage space 1131 of the transfer needle 1 is used for the adjacent transfer needle 1 on the left to pass through vertically. When biased to the right, as... Figure 9 As shown, the passage space 1131 of the transfer needle 1 is used for the adjacent transfer needle 1 on the right to pass through vertically.

[0033] In this embodiment, the needle body 11 is formed by bending a two-dimensional sheet-like stamped part; The shift needle 1 is obtained by sequentially heat-treating and polishing the needle body 11 on which the needle tongue 12 is mounted.

[0034] The transfer needle 1 of this application has a simple structure and is easy and reliable to process.

[0035] like Figure 2 and 4As shown, in this embodiment, the moving ring portion 113 is a U-shaped structure formed by stamping and bending, and the space enclosed by the U-shaped structure is the passage space 1131.

[0036] In this embodiment, the space 1131 has three vertically extending limiting sidewalls connected in sequence.

[0037] like Figure 2 and 4 As shown, in this embodiment, the upper end of the shifting portion 113 forms a guide surface 1132; in the horizontal direction, the closer the guide surface 1132 is to the needle body 11, the higher the height of the guide surface 1132, and the uppermost end of the guide surface 1132 extends to the needle body 11.

[0038] The guide surface 1132 is used to facilitate the expansion of the loop 2 when the transfer needle 1 moves upward relative to the loop 2, so that the loop 2 is ultimately wrapped around the outside of the transfer part 113.

[0039] like Figure 3 , 4 As shown in ~8, this application also discloses a transfer needle assembly, including two transfer needles 1, the transfer needles 1 being the transfer needles 1 of this embodiment; Of the two transfer needles 1, one is the first needle 1a and the other is the second needle 1b. The second needle 1b is on the bias side of the transfer portion 113 of the first needle 1a. When the second needle 1b moves up and down relative to the first needle 1a, the hook 111 and the tongue 12 of the second needle 1b can pass through the transfer portion 113 of the first needle 1a up and down.

[0040] like Figure 3 As shown, the outer surface of the needle cylinder 3 has several longitudinally arranged needle grooves 31. The transfer needle group is installed on two adjacent needle grooves 31 of the needle cylinder 3. The transfer needles 1 are all driven up and down by the corresponding drive structure through their respective needle heels 112.

[0041] In this embodiment, the transfer needle assembly has an initial state, a first state, a second state, a third state, and a fourth state; In the initial state, the tab 12 of the first needle 1a flips down and opens, with the loop 2 located at the tab 12. like Figure 4 As shown, in the first state, the latch 12 of the first needle 1a is open, and the coil 2 is located between the latch 12 of the first needle 1a and the coil transfer part 113 of the first needle 1a. When the shift needle group switches from the initial state to the first state, the first needle 1a moves up, and the coil 2 opens the needle tongue 12 of the first needle 1a; like Figure 5As shown, in the second state, the loop 2 is located on the loop transfer portion 113 of the first needle 1a, and the second needle 1b is below the loop transfer portion 113 of the first needle 1a. When the transfer needle group switches from the first state to the second state, the first needle 1a continues to move upward, and the loop 2 is wrapped around the transfer part 113 of the first needle 1a; like Figure 7 As shown, when the transfer needle assembly is in the third state, the hook 111 of the second needle 1b is located above the transfer portion 113 of the first needle 1a, the loop 2 is disengaged from the transfer portion 113 of the first needle 1a, and the loop 2 is located at the hook 111 of the second needle 1b. like Figure 6 and 7 As shown, when the transfer needle group switches from the second state to the third state, the first needle 1a moves down, the second needle 1b moves up relative to the first needle 1a, and the loop 2 disengages from the transfer part 113 of the first needle 1a and moves to the needle hook 111 of the second needle 1b where the needle tongue 12 is open. like Figure 8 As shown, when the transfer needle group is in the fourth state, the needle tongue 12 of the first needle 1a opens, and the coil 2 is completely disengaged from the first needle 1a; When the transfer needle assembly switches from the third state to the fourth state, the first needle 1a moves down, and the coil 2 moves up relative to the first needle 1a. The coil 2 first drives the needle tongue 12 of the first needle 1a to close, and then after completely disengaging from the first needle 1a, the needle tongue 12 of the first needle 1a opens (the first needle 1a and the second needle 1b are both installed on the needle groove 31 on the outer wall of the syringe 3. The transfer needle assembly rotates with the syringe under the drive of the syringe. When the coil disengages from the first needle 1a, the needle tongue will open under the action of centrifugal force). The coil 2 remains in the needle hook 111 of the second needle 1b.

[0042] The transfer needle assembly of this application, starting from the initial state, can sequentially switch to the first state, the second state, the third state, and the fourth state to complete the transfer of coil 2 from the first needle 1a to the second needle 1b.

[0043] This embodiment also discloses a transfer sock machine, including a needle cylinder 3 and a transfer triangle assembly. The outer surface of the needle cylinder 3 has a plurality of longitudinally arranged needle grooves 31, and transfer needles 1 are installed on the needle grooves 31. Two adjacent transfer needles 1 form the transfer needle group mentioned above.

[0044] In this embodiment, the outer diameter of the syringe is preferably 3 inches to 6.5 inches.

[0045] In the transfer sock machine of this application, the loop 2 can be transferred in the same direction from the first transfer needle 1 to the second transfer needle 1, and then from the second transfer needle 1 to the third transfer needle 1, in this needle arrangement, thereby making the knitted eyelet structure larger.

[0046] The transfer portion 113 of the transfer needle 1 in this application is offset to the left or right. The included needle is completely covered by the transfer portion 113. Specifically, the transfer portion 113 of the transfer needle 1 forms a tubular structure with one side opening relative to the up-and-down movement trajectory of the needle, which can cover the needle and thus achieve transfer.

[0047] In practical applications, the transfer triangle assembly is used to control the running trajectory of the needle heel of the transfer needle to complete the transfer coil action.

[0048] In practical applications, the transfer sock machine can perform single-thread or multi-thread knitting.

[0049] In practical applications, the transfer sock machine also includes an automatic eye-aligning sewing device (i.e., the transfer sock machine is an integrated automatic eye-aligning sewing machine). The needle body 11 is located between the needle hook 111 and the transfer part 113, where the transfer plate of the automatic eye-aligning sewing device is connected to the transfer needle. When the sock machine moves to the sock opening, the automatic eye-aligning sewing action can be realized on the sock machine.

[0050] In practical applications, the transfer sock machine may not include an automatic eyelet sewing device; in this case, the transfer sock machine is a transfer opening sock machine.

[0051] The above description is merely a preferred embodiment of the present invention and does not limit the scope of patent protection of the present invention. Any equivalent structural transformations made based on the description and drawings of the present invention, whether directly or indirectly applied to other related technical fields, are similarly included within the scope of protection of the present invention.

Claims

1. A transfer knitting needle, comprising a needle body and a needle latch, wherein the upper part of the needle body has a needle hook, the lower part of the needle body has a needle heel, and the needle latch is rotatably mounted on the needle body for engaging with the needle hook, characterized in that, The needle body has a shifting section offset to one side below the needle tongue. The shifting section forms a passage space for adjacent shifting needles on the offset side of the shifting section to pass through vertically.

2. The transfer needle as described in claim 1, characterized in that, The needle body is formed by bending a two-dimensional sheet-like stamped part; The shift-loop knitting needle is obtained by sequentially heat-treating and polishing the needle body on which the needle tongue is mounted.

3. The transfer needle as described in claim 1, characterized in that, The moving ring section is a U-shaped structure formed by stamping and bending, and the space enclosed by the U-shaped structure is the passage space.

4. The transfer needle as described in claim 3, characterized in that, The passageway has three vertically extending limiting sidewalls connected in sequence.

5. The transfer needle as described in claim 3, characterized in that, The upper end of the transfer section forms a guide surface; in the horizontal direction, the closer the guide surface is to the needle body, the higher the height of the guide surface, and the uppermost end of the guide surface extends to the needle body.

6. A transfer needle assembly, characterized in that, It includes two transfer needles, wherein the transfer needles are the transfer needles described in any one of claims 1 to 5; In the two transfer needles, one is the first needle and the other is the second needle. The second needle is on the side of the transfer part of the first needle. When the second needle moves up and down relative to the first needle, the hook and the latch of the second needle can pass through the transfer part of the first needle.

7. The transfer needle assembly as described in claim 6, characterized in that, The transfer needle assembly has an initial state, a first state, a second state, a third state, and a fourth state; In the initial state of the transfer needle group, the first needle's latch is flipped downwards and opened, with the loop located at the latch; In the first state, the latch of the first needle is open, and the loop is located between the latch of the first needle and the loop transfer part of the first needle. When the transfer needle group switches from the initial state to the first state, the first needle moves up, and the coil opens the needle tab of the first needle; In the second state, the loop of the transfer needle assembly is located on the transfer portion of the first needle, and the second needle is below the transfer portion of the first needle; When the transfer needle group switches from the first state to the second state, the first needle continues to move upward, and the loop is wrapped around the transfer part of the first needle; When the transfer stitch group is in the third state, the hook of the second stitch is located above the transfer part of the first stitch, the loop is disengaged from the transfer part of the first stitch, and the loop is located at the hook of the second stitch; When the transfer needle group switches from the second state to the third state, the first needle moves down and the second needle moves up relative to the first needle. The loop is disengaged from the transfer part of the first needle and transferred to the hook of the second needle when the needle tongue is open. When the shift needle group is in the fourth state, the latch of the first needle opens and the loop is completely detached from the first needle; When the shift needle group switches from the third state to the fourth state, the first needle moves down, and the coil moves up relative to the first needle. The coil first drives the first needle's latch to close, and then after completely disengaging from the first needle, the first needle's latch opens, and the coil remains inside the hook of the second needle.

8. A sock-shifting machine, characterized in that, It includes a needle cylinder and a transfer triangle assembly. The outer surface of the needle cylinder has several longitudinally arranged needle grooves. Transfer needles are installed on the needle grooves. Two adjacent transfer needles form the transfer needle group as described in claim 7. The outer diameter of the syringe is 3 inches to 6.5 inches.

9. The sock-shifting machine as described in claim 8, characterized in that, The transfer triangle assembly is used to control the running trajectory of the needle heel of the transfer needle to complete the transfer coil action; The sock-shifting machine can knit with one or multiple yarn feeds.

10. The sock-shifting machine as described in claim 8, characterized in that, It also includes an automatic eyelet sewing device. The needle body is located between the needle hook and the transfer loop part, and there is a transfer plate for transferring the needle of the automatic eyelet sewing device. When the sock machine moves to the sock cuff, the automatic eyelet sewing action can be realized on the sock machine.

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