Automatic needle selection device of glove machine

Abstract

The invention relates to an automatic needle selection device of a glove knitting machine, which comprises a needle selector, a needle selection bird piece and a needle selection roller which are arranged in one-to-one correspondence, a rotating shaft is arranged on the needle selection bird piece, the needle selection bird piece rotates by taking the rotating shaft as a center, the needle selection bird piece comprises a needle selection part and an abutting part, the needle selector is provided with a presser foot part, and the needle selection part and the presser foot part are matched to work. The needle selecting device comprises a needle selecting bird sheet and a needle selecting roller, the needle selecting bird sheet is provided with an abutting part, the abutting part and the needle selecting roller work in a matched mode, the abutting part and the needle selecting part are located on the same side of the needle selecting bird sheet, a circular groove is formed below the abutting part, the needle selecting roller is located in the circular groove, the needle selecting roller is provided with a high boss, a middle boss and a low boss, and needle selecting is achieved through abutting of the high boss, the middle boss or the low boss and the abutting part. By adjusting the needle selection bird sheet structure and the needle selector presser foot part, efficient operation of the needle selector is effectively guaranteed, and the needle selection efficiency is effectively improved through forward and reverse rotation of the needle selection roller.

Description

Technical Field

[0001] This invention relates to a needle selection device, specifically an automatic needle selection device for a glove machine, belonging to the technical field of flat knitting machines. Background Technology

[0002] In a computerized glove knitting machine, the needle selection roller has needle selection pins arranged at different heights according to the knitting requirements, each corresponding to a needle selection plate (or "bird plate"). As the needle selection roller rotates, when a needle selection pin lifts the needle selection plate (or "bird plate"), the needle selection plate rotates around its axis, lifting the needle. A needle selection pin set to a middle height lifts the needle by 1.7mm, controlled by a relatively high-position cam. At this point, the needle enters the loop (or tuck) track. A needle selection pin set to a high height lifts the needle by 3.3mm, controlled by a relatively low-position cam. At this point, the needle enters the knitting track. A gap exists between the outer edge of the needle selection roller and the needle selection plate (or "bird plate"). Due to elasticity, the needle selection plate (or "bird plate") presses down on the needle, sinking into the needle bed, no longer controlled by the cam, and does not participate in the knitting. Three positions—high, middle, and low—are required to complete the knitting process of ordinary gloves.

[0003] However, in current glove technology, changing sizes (large, medium, small, etc.) and patterns requires altering the arrangement of needle selection pins on the rollers, necessitating the removal and replacement of the selection rollers, which is labor-intensive, time-consuming, and costly. Therefore, the inventors of this application have developed a needle selection device for a computerized glove machine and its usage method, as detailed in publication number CN120099704A. This device enables arbitrary needle selection within the same row of the glove machine, and allows for in-row knitting, draping, and non-knitting functions, playing a positive role in upgrading ordinary glove machines to jacquard machines.

[0004] However, the inventors discovered the following defects in the above technical solution during use: 1. The spring part in the needle selector is located above the rotating shaft. After being pressed down by the spring part of the needle selector, the needle moves downward, making the machine head structure relatively complex. Moreover, when the needle is lifted up, it cannot be pressed down, which requires the parts on the machine head related to its lifting position to avoid it, making this needle selector mechanism unusable on many machine head models.

[0005] 2. Starting from the needle feet, the sequence consists of the needle selection section of the needle selector, the presser foot of the needle selector, and the needle selector body. During use, dust and oil stains flow from the needle feet to the needle selection section of the needle selector, then into the presser foot of the needle selector, and finally into the needle selector itself, resulting in a high failure rate and unstable needle selection.

[0006] Therefore, this invention is proposed. Summary of the Invention

[0007] In view of the above-mentioned technical problems of the prior art, the purpose of the present invention is to provide an automatic needle selection device for a glove machine, which effectively ensures the efficient operation of the needle selector by adjusting the structure of the needle selector and the pressure foot of the needle selector, and effectively improves the needle selection efficiency by rotating the needle selector roller in both directions.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solution: An automatic needle selection device for a glove machine includes a needle selector, a needle selection plate, and a needle selection roller arranged in a one-to-one correspondence. The needle selection plate is provided with a rotating shaft and rotates around the rotating shaft. The needle selection plate includes a needle selection part and an abutment part. The needle selector is provided with a pressure foot part. The needle selection part and the pressure foot part work together. The abutment part and the needle selection part work together. The abutment part and the needle selection part are located on the same side of the needle selection plate, and a circular groove is provided below the abutment part. The needle selection roller is located in the circular groove. The needle selection roller is provided with a high boss, a medium boss, and a low boss. The needle selection is achieved by the high boss, the medium boss, or the low boss abutting against the abutment part.

[0009] The bottom of the needle selection section is provided with a first platform, a second platform and a third platform. When selecting a needle, the first platform, the second platform or the third platform cooperates with the presser foot.

[0010] The inner side of the abutting part is provided with a concave part, and the needle selection is achieved by abutting the concave part with a high protrusion, a medium protrusion or a low protrusion.

[0011] The needle selection plate is provided with a spring part, which is located below the rotating shaft, and a grooved pressure plate is provided below the spring part.

[0012] Several needle selection bird pieces are arranged and installed in the needle groove of the needle bed, and needle feet are provided corresponding to the needle selection bird pieces. The needle feet are located on the opposite side of the needle selection part, and the needle feet are connected to hooks.

[0013] The needle bed is provided with a needle bed connecting plate, the needle selection roller is located on one side of the needle bed connecting plate, and the two ends of the needle selection roller are provided with end cap one and end cap two. The end cap one and end cap two are located below the needle bed connecting plate, and the needle selector is located between end cap one and end cap two.

[0014] The first end cap is connected to a left support plate, and the second end cap is connected to a right support plate. A needle selector fixing seat is provided between the left support plate and the right support plate, and the needle selector is located on the needle selector fixing seat.

[0015] A comb is located below the needle selector.

[0016] Both ends of the needle selection roller are provided with fixing rings and bearings. The fixing rings and bearings are located inside end cover one and end cover two, and the outer side of end cover two is provided with gears that drive the needle selection roller to rotate.

[0017] The needle selection plate is provided with a needle contact part. One end of the needle is connected to the hook, and the other end of the needle is inserted into the needle contact part. The first platform, the second platform and the third platform are on the same side as the needle contact part.

[0018] The automatic needle selection device for the glove machine of the present invention has the following beneficial effects: 1. The spring section in the needle selector is located below the rotating shaft, and a grooved pressure plate is provided below the spring section. This allows the needle to move upwards when the spring section is pressed down, simplifying the design of the machine head. Furthermore, when the needle is lifted upwards, it returns downwards under the action of the spring section, avoiding contact with other parts on the machine head. Therefore, it can be used with any type of machine head.

[0019] 2. In this invention, the contact part and the needle selection part are located on the same side of the needle selection bird plate, and the first platform, the second platform and the third platform are on the same side as the needle contact part. That is, starting from the needle foot direction, the needle selector body, the pressure foot part of the needle selector and the needle selection part of the needle selection bird plate are arranged in sequence. When yarn dust and oil stains flow from the needle foot to the needle selection part of the needle selection bird plate during use, they will not enter the pressure foot part of the needle selector, which effectively protects the needle selector, avoids needle selector failure, and makes needle selection very stable.

[0020] 3. The needle selection roller in this invention is provided with a high boss, a medium boss and a low boss. By adjusting the angle of the boss and increasing the number of bosses, the needle selection efficiency is effectively improved during the forward and reverse rotation of the needle selection roller. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram showing the positional relationship between the needle selector and the needle selector roller in this invention; Figure 3 This is a schematic diagram of the needle selection roller in the present invention; Figure 4 This is a schematic diagram of the needle selector in this invention; Figure 5 This is a schematic diagram showing the one-to-one correspondence between the presser foot and the needle selection plate in this invention; Figure 6 This is a schematic diagram of the structure of the needle-selecting bird blade in this invention; Figure 7 This is a schematic diagram showing the position of the needle when the needle is not in use according to the present invention; Figure 8 This is a schematic diagram showing the position of the needle when the needle is low in the middle. Figure 9 This is a schematic diagram showing the position of the needle feet when the needle is being used in this invention. Figure 10 This is a schematic diagram of the working position of the needle selection roller when the needle is not disengaged in this invention; Figure 11 This is a schematic diagram of the working position of the needle selection roller when the needle is low in the middle in this invention; Among them, 1 is the needle bed, 2 is the needle bed connecting plate, 3 is the needle selection bird plate, 31 is the needle selection part, 311 is the first platform, 312 is the second platform, 313 is the third platform, 32 is the abutment part, 321 is the concave part, 33 is the circular groove, 34 is the needle foot contact part, 35 is the spring part, 4 is the needle selection roller, 41 is the high boss, 42 is the medium boss, 43 is the low boss, 5 is the needle selector, 51 is the presser foot part, 52 is the working position, 53 is the initial position, 6 is the first end cover, 7 is the second end cover, 8 is the left support plate, 9 is the right support plate, 10 is the needle selector fixing seat, 11 is the comb, 12 is the fixing ring, 13 is the bearing, 14 is the gear, 15 is the needle foot, 16 is the hook needle, 17 is the rotating shaft, 18 is the grooved pressure plate, and 19 is the needle bed plane. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0023] like Figure 1-11 As shown, the automatic needle selection device of the glove machine of the present invention includes needle selectors 5, needle selector blades 3, and needle selector rollers 4 arranged in a one-to-one correspondence. Several needle selector blades 3 of orderly arranged specifications are installed in the needle grooves of the needle bed 1, and needle feet 15 are arranged corresponding to the needle selector blades 3. The needle feet 15 are located on the opposite side of the needle selection section 31. The needle selector blades 3 are provided with needle foot contact parts 34. One end of the needle foot 15 is connected to the hook needle 16, and the other end of the needle foot 15 is inserted into the needle foot contact part 34. The needle bed 1 is provided with a needle bed connecting plate 2. The needle selector roller 4 is located on one side of the needle bed connecting plate 2. The two ends of the needle selector roller 4 are provided with end cap 1 6 and end cap 2 7. Both ends of the needle selector roller 4 are provided with fixing rings 12 and bearings 13. The fixing rings 12 and bearings 13 are located inside the end caps 1 6 and 2 7, and the outer side of the end cap 2 7 is provided with a gear 14 that drives the needle selector roller 4 to rotate. The gear 14 rotates under the drive of a motor. End cap 1 6 and end cap 2 7 are located below needle bed connecting plate 2. End cap 1 6 is connected to left support plate 8, and end cap 2 7 is connected to right support plate 9. A needle selector fixing seat 10 is provided between left support plate 8 and right support plate 9. The needle selector 5 is located on the needle selector fixing seat 10, and a comb 11 is provided below the needle selector 5.

[0024] Further settings, such as Figure 6As shown, the needle selection plate 3 of the present invention is provided with a rotating shaft 17. The needle selection plate 3 rotates around the rotating shaft 17. The needle selection plate 3 includes a needle selection part 31 and an abutment part 32. The abutment part 32 has a circular groove 33 below it. The needle selection roller 4 is located in the circular groove 33. The needle selection roller 4 is provided with a high boss 41, a medium boss 42 and a low boss 42. The abutment part 32 works in cooperation with the needle selection roller 4. That is, the needle selection is achieved by the high boss 41, the medium boss 42 or the low boss 42 abutting against the concave part 321 on the inner side of the abutment part 32. Adjusting the angle of the boss and increasing the number of bosses can effectively improve the needle selection efficiency during the forward and reverse rotation of the needle selection roller 4.

[0025] Furthermore, the needle selector 5 in this invention is provided with a pressure foot 51, and the bottom end of the needle selector 31 is provided with a first platform 311, a second platform 312 and a third platform 313. When selecting a needle, the first platform 311, the second platform 312 or the third platform 313 cooperate with the pressure foot 51.

[0026] Furthermore, the needle selector 3 of this invention is equipped with a spring portion 35, located below the rotating shaft 17, and a grooved pressure plate 18 is provided below the spring portion 35. This allows the needle 15 to move upwards when the spring portion 35 is pressed down, simplifying the design of the machine head. Moreover, when the needle 15 is lifted upwards, it returns downwards under the action of the spring portion 35, preventing it from touching other components on the machine head. Therefore, it can be used with any type of machine head.

[0027] Furthermore, in this invention, the contact portion 32 and the needle selection portion 31 are located on the same side of the needle selection plate 3, and the first platform 311, the second platform 312, and the third platform 313 are on the same side of the needle contact portion 34. That is, starting from the needle 15, the sequence is the needle selector body, the pressure foot portion 51 of the needle selector 5, and the needle selection portion 31 of the needle selection plate 3. When yarn dust and oil stains flow from the needle 15 to the needle selection portion 31 of the needle selection plate 3, they will not enter the pressure foot portion 51 of the needle selector 5, effectively protecting the needle selector 5, avoiding needle selector 5 malfunction, and making needle selection very stable.

[0028] In use, the motor drives the gear 14 to rotate, thereby rotating the needle selection roller 4. The high protrusion 41 enters the concave portion 321, pushing up the abutment portion 32 of the needle selection plate 3. The needle selector 5 operates, and the pressure foot 51 swings from the initial position 53 to the working position 51, that is, the pressure foot 51 swings above the first platform 311 of the needle selection part 31. Figure 10 As shown. The raised platform 41 moves away from the recessed portion 321, and the needle selector 3 rotates under the action of the spring portion 35. The first platform 311 and the presser foot portion 51 come into contact and are limited, and the selected needle 15 remains in the non-disengaging position, as shown. Figure 7As shown, as the needle selection roller 4 rotates, the low boss 43 enters the concave portion 321, lifting the abutment portion 32, and the needle selector 5 operates. The pressure foot portion 51 swings above the second platform 312 of the needle selection portion 31, as shown. Figure 11 As shown. The low boss 43 moves away from the recess 321, and the needle selector rotates under the action of the spring 35. The second platform 312 and the presser foot 51 are limited, and the selected needle 15 remains in the low needle exit position, as shown. Figure 8 As shown. The needle selection roller 4 continues to select needles. The high boss 41, the medium boss 42, and the low boss 43 all move away from the concave part 321, and the needle foot 15 stays in the high needle position, as shown. Figure 9 As shown. In summary, needle selection is completed by using no needle, low needle, and high needle.

[0029] The above embodiments are only used to explain the inventive concept of the present invention, and are not intended to limit the protection of the present invention. Any non-substantial modifications made to the present invention using this concept should fall within the protection scope of the present invention.

Claims

1. An automatic needle selection device of a glove machine, comprising a needle selector, a needle selection bird piece and a needle selection roller arranged in one-to-one correspondence, wherein the needle selection bird piece is provided with a rotating shaft, and the needle selection bird piece rotates around the rotating shaft; the needle selection bird piece comprises a needle selection part and an abutting part; the needle selector is provided with a presser foot part; the needle selection part cooperates with the presser foot part; and the abutting part cooperates with the needle selection roller. The abutting part and the needle selection part are located on the same side of the needle selection bird piece, and the abutting part is provided with a circular groove below, the needle selection roller is located in the circular groove, the needle selection roller is provided with a high boss, a middle boss and a low boss, and the needle selection is realized by abutting the high boss, the middle boss or the low boss with the abutting part.

2. The automatic thread selector of a glove machine according to claim 1, wherein: The bottom end of the needle selection part is provided with a first platform, a second platform and a third platform, and the first platform, the second platform or the third platform cooperates with the presser foot part during needle selection.

3. The automatic thread selector of a glove machine according to claim 1, wherein: The inner side of the abutting part is provided with an inner recess, and the needle selection is realized by abutting the high boss, the middle boss or the low boss with the inner recess.

4. The automatic thread selector device of the glove machine according to claim 1, characterized in that: The needle selection bird piece is provided with a spring part, the spring part is located below the rotating shaft, and the spring part is provided with a slotted press plate below.

5. The automatic thread selector of a glove machine according to claim 2, wherein: A plurality of needle selection bird pieces are arranged and installed in the needle groove of the needle bed, and a needle foot is arranged corresponding to the needle selection bird piece, the needle foot is located on the opposite side of the needle selection part, and the needle foot is connected with a hook needle.

6. The automatic thread selector of a glove machine according to claim 5, wherein: The needle bed is provided with a needle bed connecting plate, the needle selection roller is located on one side of the needle bed connecting plate, both ends of the needle selection roller are provided with an end cover one and an end cover two, the end cover one and the end cover two are located below the needle bed connecting plate, and the needle selector is located between the end cover one and the end cover two.

7. A device for automatically selecting needles for a glove machine as claimed in claim 6, characterized in that: The end cover one is connected with a left support plate, the end cover two is connected with a right support plate, a needle selector fixing seat is arranged between the left support plate and the right support plate, and the needle selector is located on the needle selector fixing seat.

8. The automatic thread selector device of the glove machine according to claim 1, characterized in that: The needle selector is provided with a comb below.

9. The automatic thread selector of the glove machine according to claim 5, characterized in that: Both ends of the needle selection roller are provided with a fixing ring and a bearing, the fixing ring and the bearing are located on the inner side of the end cover one and the end cover two, and the outer side of the end cover two is provided with a gear for driving the needle selection roller to rotate.

10. The automatic thread selector device of the glove machine according to claim 5, characterized in that: The needle selection bird piece is provided with a needle foot contact part, one end of the needle foot is connected with the hook needle, the other end of the needle foot is inserted into the needle foot contact part, and the first platform, the second platform and the third platform are located on the same side of the needle foot contact part.

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