Needle selection device of computer glove knitting machine and use method of needle selection device

Abstract

The invention relates to a needle selection device of a computerized 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 the center, the needle selection bird piece comprises a needle selection part and a pressing strip 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 strip pressing part is matched with the needle selection roller to work. The needle selection part is arranged on the lower portion of the needle selection bird-shaped piece, the needle selection part has a certain length, the length of the needle selection part is matched with that of a needle selector, and the needle selection bird-shaped piece can be used in cooperation with a conventional needle selector. The pressing strip part in the needle selection bird piece has certain elasticity, under the condition that part of stitches are pressed by the triangle, the needle selection roller is driven to normally select needles, the machine head is made to return according to the optimal distance, efficiency is high, and simplicity and reliability are achieved.

Description

Technical Field

[0001] The invention relates to a needle selection device and a use method thereof, which are mainly used in a computer glove machine and belong to the technical field of textile flat knitting machines. Background Art

[0002] Computer glove machine is a kind of flat knitting machine for making gloves. It is equipped with front and rear needle beds. The machine head on the needle bed moves left and right along the track. The cam bottom plate set on the machine head is equipped with various cams to form knitting, tuck, elastic tuck, and non-knitting tracks. The knitting needle combination (the hook is fitted on the stitch) moves up and down in the needle groove of the needle bed and cooperates with the yarn mouth, shear clamp device, inserting knife, and needle selection roller to complete the knitting of gloves.

[0003] The needle selection drum arranges needle selection pins of different heights according to the needs of weaving, and corresponds to the needle selection piece (bird piece) one by one. When the needle selection drum rotates and the needle selection pin lifts the needle selection piece (bird piece), the needle selection piece rotates around the axis and lifts the pin. The needle selection pin with a medium height corresponds to the pin lift of 1.7mm, which is controlled by the relatively high triangle. At this time, the knitting needle enters the tuck (tuck) track. The needle selection pin with a high height corresponds to the pin lift of 3.3mm, which can be controlled by the relatively low triangle. At this time, the knitting needle enters the knitting track, and there is a gap between the outer edge of the needle selection drum and the needle selection piece (bird piece). The needle selection piece (bird piece) presses down the pin under the action of elastic force and sinks into the needle bed, which is not controlled by the triangle and does not participate in knitting. High, medium and low positions are required to complete the knitting process requirements of ordinary gloves.

[0004] When changing the size of gloves (large, medium, small, etc.) or the pattern, it is necessary to change the arrangement and combination of the needle selection pins on the roller, and the needle selection roller needs to be removed for replacement, which is labor-intensive, time-consuming and costly. Therefore, this field needs a glove machine that can change the size and pattern through simple computer settings to meet the market.

[0005] CN 119332403 A discloses a needle selection device for a glove machine, but the needle selection roller and the bird piece pressing position are not elastic. When the pin is pressed by the cam, the needle selection roller cannot select the needle, and it is necessary to leave the pin area or make the cam active, which is inefficient, costly, and has potential faults. Taking a 13-needle glove machine (the model with the highest output) as an example, its needle pitch is 2mm. How to install a needle selector with the same number of pin combinations in the narrow space on the back of the needle bed requires a small and reliable needle selector. Due to the size limitation of the driving part, it is necessary to increase the cost investment, which is currently impossible to achieve.

[0006] CN115948850A discloses a glove machine needle selection device, wherein the needle selection shaft is driven to rotate by a driving mechanism, a needle selection rack is installed on the needle selection shaft, and the abutment part of the bird piece abuts against the needle selection rack to produce three positions of high, middle and low, and cooperate with the electromagnetic needle selector to realize automatic needle selection. However, the electromagnetic needle selection device is greatly affected by environmental yarn dust, oil pollution, etc., and needs timely maintenance, which has limitations.

[0007] Based on this, the present invention is proposed. Summary of the invention

[0008] In view of the above technical problems of the prior art, the present invention further summarizes the experience of the above prior art and studies a glove machine needle selection device that can realize the selection of fine needle pitches such as 13 needles and 15 needles by an electronic needle selector under current ordinary technical conditions.

[0009] To achieve the above object, the present invention is implemented through the following technical solutions.

[0010] A needle selection device for a computerized glove machine comprises a needle selector, a needle selection bird plate and a needle selection roller which are arranged in a one-to-one correspondence. The needle selection bird plate is provided with a rotating shaft, and the needle selection bird plate rotates around the rotating shaft. The needle selection bird plate comprises a needle selection part and a pressure strip part. The needle selector is provided with a presser foot part, and the needle selection part cooperates with the presser foot part, and the pressure strip part cooperates with the needle selection roller.

[0011] The length of the needle selection part is 28-55mm.

[0012] The pressure strip portion includes an integrally formed first section, a second section, a third section and a fourth section. The first section and the second section are both located above the needle selector. The needle selection roller is provided with a low-position pressure strip and a high-position pressure strip. When working, the low-position pressure strip or the high-position pressure strip is pressed on the third section.

[0013] A method for using a needle selection device of a computerized glove machine comprises the following steps: (1) The hook and the needle feet on the needle bed are fitted together, the rear end of the needle feet is inserted into the needle selection bird piece, arranged in the needle groove, and the needle selection bird piece is mounted on the rotating shaft; (2) The needle selection part of the needle selection bird piece corresponds to the presser foot part in the needle selector; (3) The needle selection roller is arranged at the lower rear of the needle bed and fixed between the bearings installed on the left and right support plates; (4) The needle selection roller is axially fixed with a high-position pressure strip and a low-position pressure strip. When the high-position pressure strip and the pressure strip part of the needle selection bird piece are in contact with each other, the needle foot is in a high position, and a sensor is set at one end of the needle selection roller to obtain a signal, which is defined as the high position; when the low-position pressure strip and the pressure strip part of the needle selection bird piece are in contact with each other, the needle foot is in a middle position, and a sensor is set at one end of the needle selection roller to obtain a signal, which is defined as the middle position; when the outer edge of the needle selection roller body and the pressure strip part do not contact each other, the needle foot is in a low position, and a sensor is set at one end of the needle selection roller to obtain a signal, which is defined as the zero position.

[0014] The needle selector is arranged in the needle selection drum space, the needle selector is fixed on the needle selector mounting plate, the needle selector mounting plate is fixed on the left and right supporting plates, and the left and right supporting plates are fixed on the needle bed.

[0015] The axial installation of the needle selection roller and the height matching rack corresponding to the needle selection bird piece are arranged one by one, and a sensor is arranged at one end of the needle selection roller to obtain a signal.

[0016] A magnet induction coil is installed on one end shaft of the needle selection drum, and the magnet induction coil corresponds to the sensor. A synchronous wheel 1 is installed on the other end of the needle selection drum, and a synchronous wheel 2 is installed on the motor shaft. The synchronous wheel 1 and the synchronous wheel 2 are connected by a synchronous belt.

[0017] The beneficial effects of the present invention are as follows: The needle selection device of the computer glove machine of the present invention and the method of using the same are provided with a needle selection part at the lower part of the needle selection bird plate, and the needle selection part has a certain length, and its length is matched with the needle selector, so as to achieve the purpose of being used in conjunction with the conventional needle selector. The pressure strip part in the needle selection bird plate has a certain elasticity, and when part of the needles are pressed by the triangle, the needle selection roller can be driven to select needles normally, so that the machine head returns at the optimal distance, which is efficient, simple and reliable. The pressure foot part of the needle selector acts as a supporting foot, and can be driven to swing left and right around the axis by changing the direction of the current, and the square groove of the cover plate is limited. Therefore, the present invention can realize the arbitrary needle selection of the glove machine in the same line, and realize the functions of knitting, tuck and non-knitting in the same line, and has a positive effect on upgrading the ordinary glove machine to a jacquard machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the arrangement and assembly of the needle selector and the needle selection presser foot in the present invention; Figure 2 It is a schematic diagram of the top view of the needle selector and the needle selector bird piece in the present invention; Figure 3 The upper left schematic diagram is a corresponding relationship between 5 needle selector presser feet and 5 needle selector jacks (for example, 10 in total) in the front and rear rows of the present invention; Figure 4 This is a schematic diagram of the electronic needle selection assembly in the present invention; Figure 5 It is a schematic diagram of the linkage relationship between the needle selection part and the presser foot of the needle selector in the present invention; Figure 6 for Figure 5 Schematic diagram of the method structure in Part C; Figure 7 It is a schematic diagram of the high-position press strip and the press strip part abutting against each other when selecting the high stitch of the present invention; Figure 8 It is a schematic diagram of the deflection of the selected and selected needles of the needle selector during the high-pin needle selection of the present invention; Fig. 9 A schematic diagram of completing needle selection when selecting high-stitch needles according to the present invention; Fig.10 It is a schematic diagram of the abutment between the low-position pressure strip and the pressure strip part during the middle-position needle selection of the present invention; Fig.11 It is a schematic diagram of the needle selection foot deflection during the mid-position needle selection of the present invention; Fig.12 It is a schematic diagram of completing needle selection during mid-position needle selection of the present invention; Fig.13 for Fig.12 BB direction cross-sectional structural diagram; Fig.14 This is a schematic diagram of the structure of the present invention when the needle is not selected; Fig.15 for Fig.14 AA direction cross-sectional structural diagram; Among them, 1 is the needle selector, 2 is the needle selection bird piece, 3 is the rotating shaft, 4 is the needle selection part, 5 is the pressure strip part, 51 is the first section, 52 is the second section, 53 is the third section, 54 is the fourth section, 6 is the presser foot part, 7 is the needle selection roller, 71 is the low-position pressure strip, 72 is the high-position pressure strip, 8 is the needle selector mounting plate, 9 is the support plate, 10 is the needle bed, 11 is the stitch, 12 is the high stitch position, 13 is the normal knitting stitch position, 14 is the non-knitting stitch position, 15 is the sensor, 16 is the magnetic induction coil, 17 is the synchronous wheel one, 18 is the synchronous wheel two, and 19 is the synchronous belt. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with specific embodiments, but the protection scope of the present invention is not limited thereto.

[0021] like Figure 1-15 As shown, the needle selection device of the computerized glove machine of the present invention comprises a needle selector 1, a needle selection bird plate 2 and a needle selection roller 7 which are arranged in a one-to-one correspondence. The needle selection bird plate 2 is provided with a rotating shaft 3, and the needle selection bird plate 2 rotates around the rotating shaft 3. The needle selection bird plate 2 comprises a needle selection part 4 and a pressure strip part 5. The needle selector 1 is provided with a presser foot part 6. The needle selection part 4 cooperates with the presser foot part 6, and the pressure strip part 5 cooperates with the needle selection roller 7.

[0022] It is further provided that, in order to achieve the purpose of the present invention being used in conjunction with a conventional needle selector, the length of the needle selection portion 4 in the present invention is 28-55mm. For example, when 7 needles are used, the needle selection portion 28mm is sufficient to configure the needle selector 1; as the number of needles increases, the length of the needle selection portion 4 also needs to be increased, such as 55mm, 35mm, 50mm or 40mm, etc. When it exceeds 55mm, the needle selector 1 will not be able to adapt. The pressure strip portion 5 includes an integrally formed first section 51, a second section 52, a third section 53 and a fourth section 54. The first section 51 and the second section 52 are both located above the needle selector 1. The needle selection roller 7 is provided with a low pressure strip 71 and a high pressure strip 72. When working, the low pressure strip 71 or the high pressure strip 72 is pressed on the third section 53. This setting makes the pressure strip portion 5 have an elastic effect. When part of the pins 11 are pressed by the triangle, the needle selection roller 7 can be driven to select needles normally, so that the machine head returns at the optimal distance, which is efficient, simple and reliable.

[0023] In addition, in the present invention, the needle selector 1 is arranged in the space of the needle selection drum 7, the needle selector 1 is fixed on the needle selection drum mounting plate 8, the needle selection drum 1 mounting plate is fixed on the left and right side support plates 9, and the left and right support plates 8 are fixed on the needle bed 10. The axial installation of the needle selection drum 7 corresponds to the height matching rack of the needle selection bird piece 2 (not marked in the drawings of the present invention), and a sensor 15 is arranged at one end of the needle selection drum 7 to obtain a signal, which is defined as a specific needle selection mode, such as (1+1 rubber band). A magnetic induction coil 16 is installed on the shaft at one end of the needle selection drum 7, and the magnetic induction coil corresponds to the sensor. A synchronous wheel 17 is installed at the other end of the needle selection drum 7, and a synchronous wheel 2 18 is installed on the motor shaft. The synchronous wheel 1 and the synchronous wheel 2 are connected by a synchronous belt 19.

[0024] The method for using the needle selection device of the computerized glove machine of the present invention comprises the following steps: (1) the hook needle and the needle foot 11 on the needle bed are fitted together, the rear end of the needle foot 11 is inserted into the needle selection bird plate 2 (front end opening), arranged in the needle groove, and the needle selection bird plate 2 is fitted on the rotating shaft 3; (2) the needle selection part 4 of the needle selection bird plate 2 and the presser foot part 6 in the needle selector 1 correspond one to one; (3) the needle selection roller 7 is arranged at the rear lower part of the needle bed and fixed between the bearings installed on the left and right support plates 9; (4) the needle selection roller 7 is axially fixed with a high-position pressure strip 7 2 and the low-position pressure strip 71, when the high-position pressure strip 72 and the pressure strip part 5 of the needle selection bird piece 2 are against each other, the pin 11 is in the high position, and a sensor is set at one end of the needle selection roller 7 to obtain a signal, which is defined as the high position; when the low-position pressure strip 71 and the pressure strip part 5 of the needle selection bird piece 2 are against each other, the pin 11 is in the middle position, and a sensor is set at one end of the needle selection roller 7 to obtain a signal, which is defined as the middle position; when the outer edge of the needle selection roller 7 body and the pressure strip part 5 do not against each other, the pin 11 is in the low position, and a sensor is set at one end of the needle selection roller 7 to obtain a signal, which is defined as the zero position.

[0025] Among them, when the high pin is selected, the position of pin 11 is the high pin position 12: 1. The needle selection drum 7 rotates at an angle so that the head of the high-position pressure strip 72 is tangent to the pressure strip portion 5 of the needle selection jack 1. The needle selection jack 1 rotates around the rotating shaft 3 to lift the needle foot 11, which is slightly larger than the high position; 2. The high-foot needles that need to be knitted are selected by the needle selector 1, and the presser foot of the needle selector 1 is swung to align with the high platform plane of the needle selection part 4 of the needle selector 1; 3. The needle selection drum 7 continues to rotate at an angle, the head of the high-position pressure strip 72 and the pressure strip part 5 of the needle selection jack 1 are separated, and the needle selection part 4 of the needle selection jack 1 is in contact with the pressure foot of the needle selector 1 under the elastic action of the pressure strip part 5, thus completing the high-position needle selection work.

[0026] When knitting needle selection, the position of pin 11 is the normal knitting pin position 13: 1. The needle selection drum 7 rotates at an angle so that the head of the low-position pressure strip 71 is tangent to the pressure strip portion 5 of the needle selection jack 1. The needle selection jack 1 rotates around the rotating shaft 3 to lift the needle foot 11 to a position slightly larger than the middle position; 2. The needles that need to participate in normal knitting are selected by the needle selector 1, and the presser foot of the needle selector 1 is swung to align with the low platform plane of the needle selection part 4 of the needle selector 1; 3. The needle selection drum 7 continues to rotate at an angle, the head of the middle pressure strip 71 and the pressure strip part 5 of the needle selection jack 1 are separated, and the low surface of the needle selection part 4 of the needle selection jack 1 fits the pressure foot of the needle selector 1 under the elastic action of the pressure strip part 5, thus completing the needle selection work.

[0027] When the needle is not selected, the position of stitch 11 is not knitted stitch position 14: The needle selection drum 7 rotates an angle to separate the needle selection strip part 5 of the needle selection drum 7 and the needle selection jack 1. Under the elastic action of the strip part 5, the needle selection part 4 of the needle selection jack 1 separates from the pressure foot of the needle selector 1, completing the non-needle selection work.

[0028] The needle selector 1 body in the present invention adopts the standard design of ordinary flat knitting machine needle selector to achieve cost-effectiveness and application. The pressure foot 6 of the needle selector 1 acts as a supporting foot in the invention, and is driven to swing left and right around the axis by changing the direction of the current, and the square groove of the cover plate is limited.

[0029] In the present invention, the arrangement of the presser foot 6 is determined by the machine model and the number of needles in the needle bed. Taking the 13-needle machine model with a needle pitch of 2mm and 85 needles as an example, the presser foot 6 is arranged in parallel with 85 pieces at intervals of 2mm along the needle selection part 4 in the needle bed. That is, a 13-needle needle selector, a needle pitch of 2mm, 10 needles, a width of 20mm, and a 10-segment needle selector with a width of 20mm are selected. A 15-needle needle selector, a needle pitch of 1.7mm, 12 needles, a width of 20.4mm, and a 12-segment needle selector with a width of 20mm are selected. In this way, both 18-needle and 21-needle machines can select the required universal needle selector 1.

[0030] In this embodiment, taking a 13-needle glove machine as an example, the width of the presser foot 6 needs to ensure rigidity to ensure that the support surface is against the needle selection part 4 of the needle selection jack 2 to prevent slipping. When the width is greater than the needle pitch of 2 mm, adjacent needle selection presser feet interfere with each other and need to be staggered front and back in 10 rows. The row spacing must meet the minimum design requirements of the needle selector 1. The needle selection part 4 of the adjacent needle selection jack 2 interferes with the presser foot 6 in the swing range under the action of the needle selection roller 7. It is decided to divide the presser foot 6 into 2 layers, the upper layer corresponds to 1, 3, 5, 7, and 9 needle selection jacks 2, and the lower layer corresponds to 2, 4, 6, 8, and 10 needle selection jacks 2, completing the one-to-one correspondence between the needle selection jack 2 and the presser foot 6 of the needle selector 1.

[0031] It is further provided that the needle selection roller 7 in the present invention is arranged at the lower rear of the needle bed and fixed between the bearings installed on the left and right support plates 9. The needle selection roller 7 is axially fixedly provided with a high-position pressure strip 72. When it abuts against the pressure strip portion 5 of the needle selection plate 1, the pin 11 is at a high position, and a sensor is arranged at one end of the needle selection roller 7 to obtain a signal, which is defined as a high position. The needle selection roller 7 is axially fixedly provided with a low-position pressure strip 71. When it abuts against the pressure strip portion 5 of the needle selection plate 1, the pin 11 is at a middle position, and a sensor is arranged at one end of the needle selection roller 7 to obtain a signal, which is defined as a middle position. The outer edge of the needle selection roller 7 body and the pressure strip portion 5 of the needle selection plate 1 do not abut against each other, and the pin 11 is at a low position. A sensor is arranged at one end of the needle selection roller 7 to obtain a signal, which is defined as a zero position (low position). The position when needle selection is completed and working.

[0032] In summary, in the present invention, when the needle selection roller 7 is driven to rotate to the high-position pressure strip 72 and the pressure strip part 5 are against each other, the needle selector 1 selects the needle participating in the work at the same time, the presser foot part 6 is deflected to the bottom of the needle selection part 4, the needle selection roller 7 is driven to rotate to the low-position pressure strip 71, the needle selection part 4 and the presser foot part 6 are against each other one by one, and the needle foot 11 stops at the high position. When the low-position pressure strip 71 of the needle selection roller 7 is driven to abut against the pressure strip part 5, the needle selector 1 selects the needle participating in the work at the same time, the presser foot part 6 is deflected to the bottom of the needle selection part 4, the needle selection roller 7 is driven to rotate to the zero position, the needle selection part 4 and the presser foot part 6 are against each other one by one, and the needle foot 11 stops at the middle position. When the needle selection roller 7 is driven to the zero position and does not abut against the pressure strip part 5, the needle selector 1 does not select, the presser foot part 6 is to the hollowed-out side of the needle selection part 4, and the needle foot 11 stops at the low position (generally sinks into the needle bed).

[0033] Therefore, the present invention can realize arbitrary needle selection in the same line of the glove machine, and realize the functions of knitting, tuck and non-knitting in the same line, which has a positive effect on upgrading the ordinary glove machine to a jacquard machine.

[0034] The above embodiments are only used to explain the inventive concept of the present invention, rather than to limit the protection of the rights of the present invention. Any non-substantial changes to the present invention using this concept shall fall within the protection scope of the present invention.

Claims

1. A needle selection device for a computerized glove machine, comprising a needle selector, a needle selection bird plate and a needle selection roller arranged in a one-to-one correspondence, wherein a rotating shaft is arranged on the needle selection bird plate, and the needle selection bird plate rotates around the rotating shaft, and is characterized in that: The needle selection bird piece comprises a needle selection part and a pressure strip part, the needle selector is provided with a pressure foot part, the needle selection part cooperates with the pressure foot part, and the pressure strip part cooperates with the needle selection roller.

2. The needle selection device of the computerized glove knitting machine as claimed in claim 1, characterized in that: The length of the needle selection part is 28-55mm.

3. The needle selection device of the computerized glove knitting machine as claimed in claim 1, characterized in that: The pressure strip portion includes an integrally formed first section, a second section, a third section and a fourth section. The first section and the second section are both located above the needle selector. The needle selection roller is provided with a low-position pressure strip and a high-position pressure strip. When working, the low-position pressure strip or the high-position pressure strip is pressed on the third section.

4. A method for using a needle selection device of a computerized glove machine, characterized in that The following steps are involved: (1) The hook and the needle feet on the needle bed are fitted together, the rear end of the needle feet is inserted into the needle selection bird piece, arranged in the needle groove, and the needle selection bird piece is mounted on the rotating shaft; (2) The needle selection part of the needle selection bird piece corresponds to the presser foot part in the needle selector; (3) The needle selection roller is arranged at the lower rear of the needle bed and fixed between the bearings installed on the left and right support plates; (4) The needle selection roller is axially fixed with a high-position pressure strip and a low-position pressure strip. When the high-position pressure strip and the pressure strip part of the needle selection bird piece are in contact with each other, the needle foot is in a high position, and a sensor is set at one end of the needle selection roller to obtain a signal, which is defined as the high position; when the low-position pressure strip and the pressure strip part of the needle selection bird piece are in contact with each other, the needle foot is in a middle position, and a sensor is set at one end of the needle selection roller to obtain a signal, which is defined as the middle position; when the outer edge of the needle selection roller body and the pressure strip part do not contact each other, the needle foot is in a low position, and a sensor is set at one end of the needle selection roller to obtain a signal, which is defined as the zero position.

5. The method for using the needle selection device of a computerized glove machine as claimed in claim 4, characterized in that: The needle selector is arranged in the needle selection drum space, the needle selector is fixed on the needle selector mounting plate, the needle selector mounting plate is fixed on the left and right supporting plates, and the left and right supporting plates are fixed on the needle bed.

6. The method for using the needle selection device of a computerized glove machine as claimed in claim 4, characterized in that: The axial installation of the needle selection roller and the height matching rack corresponding to the needle selection bird piece are arranged one by one, and a sensor is arranged at one end of the needle selection roller to obtain a signal.

7. The method for using the needle selection device of a computerized glove machine as claimed in claim 6, characterized in that: A magnet induction coil is installed on one end shaft of the needle selection drum, and the magnet induction coil corresponds to the sensor. A synchronous wheel 1 is installed on the other end of the needle selection drum, and a synchronous wheel 2 is installed on the motor shaft. The synchronous wheel 1 and the synchronous wheel 2 are connected by a synchronous belt.

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