CN111394879A - Detection and adjustment method and detection and adjustment device for hosiery machine - Google Patents
Detection and adjustment method and detection and adjustment device for hosiery machine Download PDFInfo
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- CN111394879A CN111394879A CN202010321287.3A CN202010321287A CN111394879A CN 111394879 A CN111394879 A CN 111394879A CN 202010321287 A CN202010321287 A CN 202010321287A CN 111394879 A CN111394879 A CN 111394879A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/62—Over or under weighing apparatus
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Abstract
The invention discloses a detection and regulation method and a detection and regulation device for a hosiery machine, wherein the detection and regulation method comprises the steps of weighing a weighing box, weighing the weighing box containing socks, calculating the weight of the socks, automatically regulating the height of an initial needle cylinder in the hosiery machine according to the weight of qualified socks, and simultaneously automatically pouring out the socks in the weighing box by a controller; the detection and adjustment device comprises a detection device arranged below the sock outlet of the sock knitting machine and an adjustment device fixed in the sock knitting machine; the detection device comprises a frame, a clamping piece is connected to the frame, and a weighing box is arranged in the clamping piece; and a liftable electronic scale is fixed at a position on the rack, which corresponds to the position right below the weighing box. The invention can reduce the labor intensity of workers, and has the advantages of higher detection precision, lower production cost, convenient adjustment, no reduction of the working efficiency of the hosiery machine, limit alarm adjustment, false yarn bobbin replacement alarm and more convenient sock blanking.
Description
Technical Field
The invention relates to the field of hosiery, in particular to a detection and adjustment method and a detection and adjustment device for a hosiery machine.
Background
At present, the diameter of yarn on a yarn bobbin of the existing hosiery machine is gradually reduced along with the progress of weaving, the tension of the yarn during hole passing is changed, the weaving amount of the yarn during the weaving of the hosiery machine is changed, and the process elasticity of the final finished hosiery is influenced; as the errors accumulate, the finished sock gradually becomes subject to batches of defective products. Therefore, the finished socks need to be detected, and the error of the hosiery knitter is reduced by adjusting according to the detection result; the existing detection method of finished socks is to manually detect the elasticity of the finished socks, namely to manually stretch the socks and judge the quality of the finished socks according to the stretched length of the socks, and the detection method can cause the labor intensity of workers to be higher; in most factories, in order to save labor cost, one worker is needed to detect a plurality of hosiery knitting machines, and each sock woven by each hosiery knitting machine cannot be detected when the manual one-by-one detection is carried out, so that the detection precision is low; the length of the sock which can be stretched can also be changed according to the pulling force of a worker, the worker is difficult to accurately control the pulling force when the sock is detected every time, experience and hand feeling are required, and the detection precision is low; when unqualified finished socks cannot be detected in time, raw material waste can be caused, and the production cost is increased; when defective products are detected, the working personnel also need to stop the hosiery machine, open the operation panel of the hosiery machine and adjust parameters of the position of a proximity switch which is used for controlling the manufacturing zero point inside, and the parameter adjustment of each machine is different, so that the risk of uncertainty of the adjustment process elasticity is caused, and the adjustment operation is troublesome; and the stoppage reduces the working efficiency of the hosiery knitting machine. Therefore, the existing detection and adjustment method for the hosiery machine has the problems of higher labor intensity of workers, lower detection precision, higher production cost, more troublesome adjustment operation and greatly reduced work efficiency of the hosiery machine.
Disclosure of Invention
The invention aims to provide a detection and adjustment method and a detection and adjustment device for a hosiery machine. The invention not only can reduce the labor intensity of workers, but also has the advantages of higher detection precision, lower production cost, convenient adjustment and no reduction of the working efficiency of the hosiery machine.
The technical scheme of the invention is as follows: a detection and adjustment method for a hosiery machine comprises the following steps,
a. the controller controls the lifting air cylinder to lift the electronic scale 10 s-60 s before the hosiery machine finishes the hosiery weaving, the electronic scale lifts the weighing box clamped on the clamping piece until the weighing box is completely separated from the clamping piece, and the electronic scale weighs the net weight data A of the weighing box and transmits the data A to the controller;
b. the controller controls the lifting cylinder to reset, and the weighing box continues to be clamped on the clamping piece after moving downwards;
c. the controller controls the electric slide block to drive the clamping piece and the weighing box to move horizontally, so that the weighing box deviates from the position right above the electronic scale and is positioned right below a sock outlet of the hosiery machine;
d. the hosiery machine weaves the socks, and the socks fall into the weighing box from the sock outlet; at the moment, a photoelectric sensor positioned above the weighing box senses a signal and transmits the signal to a controller;
e. then the controller controls the electric slide block to drive the clamping piece and the weighing box to move horizontally, so that the weighing box is positioned right above the electronic scale;
f. the controller controls the lifting air cylinder to lift the electronic scale, the electronic scale supports the weighing box clamped on the clamping piece until the weighing box is completely separated from the clamping piece, and at the moment, the electronic scale weighs total weight data B of the weighing box and the socks and transmits the data B to the controller;
g. the controller subtracts the data A from the data B to obtain sock weight data C;
h. the controller subtracts the manually input weight data D of the qualified socks from the data C to obtain data E;
i. the controller controls the adjusting device according to the data E, and the adjusting device automatically adjusts the position of the proximity switch in the hosiery machine, so that the height of an initial needle cylinder during hosiery of the hosiery machine is adjusted;
j. after the data B is measured, the controller controls the lifting cylinder to reset, and the weighing box moves downwards and then is continuously clamped on the clamping piece;
k. the controller controls the electric slide block to drive the clamping piece and the weighing box to move horizontally, so that the weighing box deviates from the position right above the electronic scale and is positioned right below a sock outlet of the hosiery machine;
the controller controls the stepping motor to drive the clamping piece to rotate 180 degrees, the clamping piece can drive the weighing box to turn over 180 degrees, and socks in the weighing box are poured out;
m, then the controller controls the stepping motor to drive the clamping piece to rotate 180 degrees, the clamping piece can drive the weighing box to turn over 180 degrees, and the weighing box resets;
and n, finally, the controller controls the electric slide block to drive the clamping piece and the weighing box to horizontally move, so that the weighing box deviates from the position right above the electronic scale, and the steps are repeated to measure the socks next time.
The detection and adjustment device constructed according to the detection and adjustment method for the hosiery machine comprises a detection device arranged below a sock outlet of the hosiery machine and an adjustment device fixed in the hosiery machine, wherein a controller is electrically connected between the detection device and the adjustment device; the detection device comprises a frame, a clamping piece is connected to the frame, and a weighing box is arranged in the clamping piece; an upper clamping piece is fixed on the side wall of the weighing box, the upper clamping piece is arranged above the clamping piece in a contact manner, and the weighing box is small at the bottom and large at the top corresponding to the lower part of the upper clamping piece; and a lifting cylinder is fixed at a position on the rack, which corresponds to the position right below the weighing box, and an electronic scale is fixed at the top end of the lifting cylinder.
In the detection and adjustment device, the adjustment device includes a fixed seat, a servo motor is fixed on the fixed seat, and a driving device is connected to the servo motor; the fixed seat is provided with a moving piece, and a proximity switch is fixed on the moving piece; the driving device can drive the moving part to move relative to the fixed seat.
In the foregoing detection and adjustment device, the driving device includes a gear fixed on a rotating shaft of the servo motor; the moving piece is an arc-shaped rack, and one side of the rack is meshed with the gear; position sensors are fixed at two end points of the fixed seat corresponding to the moving path of the rack; the other side of the rack opposite to the gear is a smooth surface, two ends of the rack smooth surface are respectively provided with a rotating wheel fixed on the fixed seat, and each rotating wheel is in contact with the rack smooth surface; a vertical upright post is fixed at the position, opposite to each rotating wheel, on the fixed seat, and the rotating wheels are rotatably sleeved on the upright posts; a sliding groove is formed in the position, opposite to the position right below the rack, of the fixed seat, a sliding block is clamped in the sliding groove in a sliding mode, and the top end of the sliding block is fixed with the bottom end of the rack; the sliding block is fixed in the middle of the rack.
In the detection and adjustment device, a lower clamping piece is fixed at a position on the side wall of the weighing box corresponding to the lower part of the upper clamping piece, and the vertical distance between the lower clamping piece and the upper clamping piece is greater than the thickness of the clamping piece.
In the detection and adjustment device, one side of the clamping piece is connected with the stepping motor.
In the detection and adjustment device, the upper clamping piece is a rubber rope, and a stepped clamping groove is formed in the weighing box at a position corresponding to the buffer strip; an edge is fixed at the outer side position of the top end of the weighing box.
In the detection and adjustment device, guide rails are fixed at positions on the machine frame corresponding to two sides of the clamping piece, and a sliding block and an electric sliding block are respectively connected to the two guide rails in a sliding manner; the slider is connected with the joint spare, electronic slider and step motor fixed connection.
In the detection and adjustment device, an inclined guide plate is arranged at a position, corresponding to the lower part of the weighing box, on the rack.
In the above-mentioned detection and adjustment device, a photoelectric sensor is fixed at a position on the frame corresponding to one side above the weighing box.
Compared with the prior art, the invention improves the detection and adjustment method for the existing hosiery machine, and the gram weight of finished socks can reflect the quality of the socks because the change of the elasticity of the finished socks is caused by the change of the quantity of the yarns knitted in; the weighing box is arranged below the sock outlet of the hosiery machine, the electronic scale is arranged below the weighing box, and the weighing box can be weighed by jacking the weighing box through the electronic scale; after the socks fall into the weighing box, the weighing box is jacked up by the electronic scale to weigh the weighing box and the socks together, so that the weight of the finished socks is calculated by the controller; manual detection is replaced by machine measurement, so that the labor intensity of workers is reduced; the controller compares the weighed weight with the weight of the qualified socks, so that an error value can be accurately obtained; socks in the weighing box can be automatically poured out, the weighing of the next finished socks is not influenced, and the socks woven by one hosiery knitter can be continuously measured; the controller can control the adjusting device to timely and automatically adjust the position of the proximity switch used for controlling the weaving zero point in the hosiery machine according to the error value, the adjusting operation is simple, the defective rate of the hosiery can be reduced, and the production cost is reduced; the stopping operation of the hosiery machine is not needed, and the working efficiency of the hosiery machine is ensured.
The invention also provides a detection and adjustment device matched with the detection and adjustment method, wherein the detection device is arranged below the sock outlet of the hosiery knitting machine, detects the error of finished socks and provides a signal to the controller to be transmitted to the adjustment device, so that the position of a proximity switch in the hosiery knitting machine is automatically adjusted; the detection device comprises a clamping piece (the clamping piece can be a clamping fixed frame) connected on the rack, and the weighing box is hung on the rack under the action of the upper clamping piece and the clamping piece, so that the weighing box is not in direct contact with the electronic scale; sock falling behind when hosiery machine goes out the welt can fall into earlier and weigh in the box, can not cause the impact to the electronic scale, the electronic scale of level form afterwards under the drive of lift cylinder with weigh the box contact, owing to weigh the box on correspond the fastener below and be big end up form, the electronic scale can weigh the box jack-up, effect between joint spare and the last fastener can not influence the measurement to measure the weight of weighing the interior sock of box accurately ground. In addition, the adjusting device comprises a proximity switch which is arranged on the fixed seat in a sliding manner, the detection device detects the process error between the finished socks and the qualified socks, and the controller processes the error data and controls the servo motor to adjust the relative position of the proximity switch and the fixed seat, so that the initial weaving height of the needle cylinder is adjusted when the socks are woven at the zero point each time, the error of the elastic force change of the yarns during weaving is compensated, and the operation is convenient; a large amount of time for disassembling and assembling the hosiery machine is saved, and the working efficiency of the hosiery machine is ensured; the gear is fixed on the rotating shaft in the servo motor, the moving piece is arranged to be an arc-shaped rack, the position of the proximity switch on the rack is adjusted through the meshing of the gear and the rack, and the adjusting precision is high; the controller controls the servo motor to drive the gear to rotate according to the error, the gear rotates to drive the rack to move leftwards or rightwards, and the rack moves for a certain distance, so that the position of the proximity switch is changed, the initial weaving height of the needle cylinder is adjusted when the sock is weaved at the zero point each time, and the control is convenient (the arc-shaped rack and the big gear for controlling the height of the needle cylinder in the hosiery machine are concentrically arranged, so that the big gear can be close to the contact switch after the rack drives the proximity switch to move; position sensors are fixed at two end points of the fixed seat corresponding to the moving path of the rack, and the position sensors are used for reminding workers that gears are positioned at two end parts of the rack (adjustment limit alarm), so that the weaving zero point cannot be adjusted any more, the workers need to manually adjust the yarn elasticity, and the quality problem of socks is avoided; when the working personnel replace the yarn barrel with different elasticity due to misoperation, the sock process elasticity has larger errors, and the rack can directly trigger the position sensor, so that the working personnel is reminded of the problem that the yarn barrel is replaced wrongly, and the waste of raw materials is avoided; the other side of the rack opposite to the gear is a smooth surface, and the two ends of the fixed seat corresponding to the smooth surface are provided with rotating wheels, so that when the rack is driven by the gear, the rack is limited by the two rotating wheels, a moving path cannot be deviated, and the weaving zero position of the hosiery machine is accurately controlled; the rotating wheel is a circular ring which is directly sleeved on the vertical smooth upright rod on the fixed seat, so that the cost is low and the disassembly and the assembly are convenient; a sliding groove is formed in the position, opposite to the position right below the rack, fixed on the upper portion, a sliding block is clamped in the sliding groove in a sliding mode, the top end of the sliding block is fixed to the bottom end of the rack, and the moving path of the rack and a proximity switch above the rack is limited through the limitation of the sliding groove and the sliding block, so that the weaving zero point position of the hosiery machine is accurately controlled; the sliding block is fixed in the middle of the rack, so that the rack can adjust the position to two sides of the fixed seat, namely when the elasticity of the yarn is increased or reduced, the yarn can be adjusted, and the adjustment range is larger; a lower clamping piece is fixed on the side wall of the weighing box in the detection device at a position corresponding to the lower part of the upper clamping piece, and the clamping piece is positioned between the upper clamping piece and the lower clamping piece after the weighing box is jacked up by the lifting cylinder, so that the weighing box can be prevented from being laterally turned over after being jacked up; one side of the clamping piece is connected with a stepping motor, after the electronic scale is weighed and reset, the clamping piece is driven to rotate through the stepping motor, the clamping piece can turn over the weighing box under the limiting action of the upper clamping piece and the lower clamping piece on the side wall of the weighing box, so that socks in the weighing box after weighing are dumped, the socks do not need to be taken out manually, and the blanking operation is convenient; when the weighing box rotates, the clamping piece can be changed from limiting with the upper clamping piece to limiting with the lower clamping piece, the weighing box can vibrate, socks in the weighing box can fall out of the weighing box more easily, and the sock discharging effect is good; the upper clamping piece is a buffer strip which is clamped with the weighing box through a clamping groove in the weighing box, when socks fall into the weighing box, the buffer strip can well reduce the impact force between the clamping piece and the upper clamping piece, and can prevent the upper clamping piece and the clamping piece from being clamped; the buffer strips are made of rubber-reinforced ropes, so that the cost is low and the buffer strips are convenient to replace; the edge is fixed at the outer side position of the top end of the weighing box and can enlarge the area of the box body for receiving socks, so that the socks can fall into the box body more easily when falling; the positions, corresponding to the two sides of the clamping piece, on the rack are respectively fixed with a guide rail, the stepping motor is driven to move on the guide rails through the electric slide block, so that the clamping piece can drive the weighing box to horizontally reciprocate on the rack, the weighing box is horizontally moved when socks are discharged, the falling point of the socks is transferred to other positions from the electronic scale when the weighing box is overturned, the socks are prevented from contacting the electronic scale when the socks are discharged, and the weighing precision of the electronic scale is further improved; the inclined guide plate is arranged at the position, corresponding to the lower part of the weighing box, on the rack, a dropping point of socks during the feeding is positioned on the guide plate, so that the socks can be fed in a sliding mode towards the outer side, and the feeding is more convenient; the photoelectric sensor is fixed at the position, corresponding to one side above the weighing box, on the rack, so that the falling time of the socks is judged, and the controller can conveniently control the follow-up operation. Therefore, the invention not only can reduce the labor intensity of workers, but also has the advantages of higher detection precision, lower production cost, convenient adjustment, no reduction of the working efficiency of the hosiery machine, limit adjustment alarm, false yarn bobbin replacement alarm and more convenient sock blanking.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the detecting unit;
FIG. 3 is a side sectional view of the detection device;
FIG. 4 is a schematic view of the construction of the weighing cell;
FIG. 5 is a schematic view of the structure of the adjustment device;
fig. 6 is a rear view of the adjustment device.
The labels in the figures are: 1-a frame, 2-a clamping member, 3-a stepping motor, 4-a weighing box, 5-a lifting cylinder, 6-an electronic scale, 7-an upper clamping member, 8-a lower clamping member, 9-a clamping groove, 10-an edge, 11-a guide rail, 12-a slide block, 13-an electric slide block, 14-a guide plate, 15-a photoelectric sensor, 16-a fixed seat, 17-a servo motor, 18-a proximity switch, 19-a gear, 20-a rack, 21-a position sensor, 22-a rotating wheel, 23-a vertical rod, 24-a sliding chute, 25-a slide block, 26-a detection device, 27-an adjusting device and 28-a controller.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Examples are given. A detection and adjustment method for a hosiery machine comprises the following steps,
a. the controller controls the lifting air cylinder to lift the electronic scale 10 s-60 s before the hosiery machine finishes the hosiery weaving, the electronic scale lifts the weighing box clamped on the clamping piece until the weighing box is completely separated from the clamping piece, and the electronic scale weighs the net weight data A of the weighing box and transmits the data A to the controller;
b. the controller controls the lifting cylinder to reset, and the weighing box continues to be clamped on the clamping piece after moving downwards;
c. the controller controls the electric slide block to drive the clamping piece and the weighing box to move horizontally, so that the weighing box deviates from the position right above the electronic scale and is positioned right below a sock outlet of the hosiery machine;
d. the hosiery machine weaves the socks, and the socks fall into the weighing box from the sock outlet; at the moment, a photoelectric sensor positioned above the weighing box senses a signal and transmits the signal to a controller;
e. then the controller controls the electric slide block to drive the clamping piece and the weighing box to move horizontally, so that the weighing box is positioned right above the electronic scale;
f. the controller controls the lifting air cylinder to lift the electronic scale, the electronic scale supports the weighing box clamped on the clamping piece until the weighing box is completely separated from the clamping piece, and at the moment, the electronic scale weighs total weight data B of the weighing box and the socks and transmits the data B to the controller;
g. the controller subtracts the data A from the data B to obtain sock weight data C;
h. the controller subtracts the manually input weight data D of the qualified socks from the data C to obtain data E;
i. the controller controls the adjusting device according to the data E, and the adjusting device automatically adjusts the position of the proximity switch in the hosiery machine, so that the height of an initial needle cylinder during hosiery of the hosiery machine is adjusted;
j. after the data B is measured, the controller controls the lifting cylinder to reset, and the weighing box moves downwards and then is continuously clamped on the clamping piece;
k. the controller controls the electric slide block to drive the clamping piece and the weighing box to move horizontally, so that the weighing box deviates from the position right above the electronic scale and is positioned right below a sock outlet of the hosiery machine;
the controller controls the stepping motor to drive the clamping piece to rotate 180 degrees, the clamping piece can drive the weighing box to turn over 180 degrees, and socks in the weighing box are poured out;
m, then the controller controls the stepping motor to drive the clamping piece to rotate 180 degrees, the clamping piece can drive the weighing box to turn over 180 degrees, and the weighing box resets;
and n, finally, the controller controls the electric slide block to drive the clamping piece and the weighing box to horizontally move, so that the weighing box deviates from the position right above the electronic scale, and the steps are repeated to measure the socks next time.
The detection and adjustment device constructed according to the detection and adjustment method for the hosiery knitting machine comprises a detection device 26 arranged below a sock outlet of the hosiery knitting machine and an adjustment device 27 fixed in the hosiery knitting machine, wherein a controller 28 is electrically connected between the detection device 26 and the adjustment device 27; the detection device 26 comprises a frame 1, a clamping piece 2 is connected to the frame 1, and a weighing box 4 is arranged in the clamping piece 2; an upper clamping piece 7 is fixed on the side wall of the weighing box 4, the upper clamping piece 7 is arranged above the clamping piece 2 in a contact manner, and the weighing box 4 is small at the bottom and large at the top corresponding to the lower part of the upper clamping piece 7; a lifting cylinder 5 is fixed at a position on the rack 1 corresponding to the position right below the weighing box 4, and an electronic scale 6 is fixed at the top end of the lifting cylinder 5.
The adjusting device 27 comprises a fixed seat 16, a servo motor 17 is fixed on the fixed seat 16, and a driving device is connected on the servo motor 17; the fixed seat 16 is provided with a moving part, and a proximity switch 18 is fixed on the moving part; the driving device can drive the moving part to move relative to the fixed seat 16; the driving device comprises a gear 19 fixed on a rotating shaft of the servo motor 17; the moving piece is an arc-shaped rack 20, and one side of the rack 20 is meshed with the gear 19; position sensors 21 are fixed at two end points of the fixed seat 16 corresponding to the moving path of the rack 20; the other side of the rack 20 opposite to the gear 19 is a smooth surface, two ends of the smooth surface of the rack 20 are respectively provided with a rotating wheel 22 fixed on the fixed seat 16, and each rotating wheel 22 is in contact with the smooth surface of the rack 20; a vertical upright rod 23 is fixed at the position, opposite to each rotating wheel 22, on the fixed seat 16, and the rotating wheels 22 are rotatably sleeved on the upright rods 23; a sliding groove 24 is formed in the fixed seat 16 and is opposite to the position right below the rack 20, a sliding block 25 is slidably clamped in the sliding groove 24, and the top end of the sliding block 25 is fixed with the bottom end of the rack 20; the sliding block 25 is fixed in the middle of the rack 20; a lower clamping piece 8 is fixed on the side wall of the weighing box 4 at a position corresponding to the lower part of the upper clamping piece 7, and the vertical distance between the lower clamping piece 8 and the upper clamping piece 7 is greater than the thickness of the clamping piece 2; one side of the clamping piece 2 is connected with a stepping motor 3; the upper clamping piece 7 is a rubber rope, and a stepped clamping groove 9 is formed in the weighing box 4 at a position corresponding to the buffer strip; an edge 10 is fixed at the outer side position of the top end of the weighing box 4; guide rails 11 are fixed on the machine frame 1 at positions corresponding to the two sides of the clamping piece 2, and a sliding block 12 and an electric sliding block 13 are respectively connected to the two guide rails 11 in a sliding manner; the sliding block 12 is connected with the clamping piece 2, and the electric sliding block 13 is fixedly connected with the stepping motor 3; an inclined guide plate 14 is arranged at the position, corresponding to the lower part of the weighing box 4, on the rack 1; a photoelectric sensor 15 is fixed on the frame 1 at a position corresponding to one side above the weighing box 4.
The working principle is as follows: in an initial state, the weighing box 4 is vertically arranged with an upward opening, the upper clamping piece 7 on the weighing box 4 is clamped above the clamping piece 2, and a gap is formed between the electronic scale 6 and the bottom end of the weighing box 4; just before the hosiery knitter finishes weaving socks, the controller 28 (the model of the controller 28 can be FX2C-20MRD, Cortex-R8 or Cortex-M7) controls the lifting cylinder 5 to lift the electronic scale 6 until the weighing box 4 is jacked up, and the clamping piece 2 is positioned between the upper clamping piece 7 and the lower clamping piece 8 during jacking to weigh the weight of the weighing box 4; then, the electric slide block 13 drives the clamping piece 2 to move along the guide rail 11 on the rack 1 through the stepping motor 3, the slide block 12 at the other end of the clamping piece 2 can also synchronously move along the guide rail 11, and the weighing box 4 can be synchronously driven to be right below the sock outlet of the sock knitting machine through the movement of the clamping piece 2; when the hosiery machine knits the socks, the socks fall into the weighing box 4 from the sock outlet pipe, the edges 10 at the top end of the weighing box 4 can well catch the socks, and after the photoelectric sensor 15 on the rack 1 senses that the socks fall down, signals are transmitted to the controller 28; then, the controller 28 controls the lifting cylinder 5 to lift the electronic scale 6 until the weighing box 4 is jacked up, and the clamping piece 2 is positioned between the upper clamping piece 7 and the lower clamping piece 8 during jacking so as to weigh the total mass of the socks and the weighing box 4; the calculation module in the controller 28 calculates the weight of the socks and then compares the weight with the weight of qualified socks, and adjusts the height of the needle cylinder when the hosiery machine initially knits the socks according to the weight difference value of the qualified socks, thereby reducing the influence of the tension change of the yarn on the quality of the socks and ensuring the quality of the socks.
The controller 28 controls the servo motor 17 on the fixed seat 16 to rotate, so that the gear 19 on the servo motor 17 rotates and drives the rack 20 to move on the fixed seat 16; a sliding block 25 fixed at the bottom end of the rack 20 slides in a sliding groove 24 on the fixed seat 16, the rotating wheel 22 rotates on the vertical rod 23, and the moving path of the rack 20 is accurately limited under the guiding action of the gear 19 and the rotating wheels 22 at the two end parts of the smooth surface; the proximity switch 18 on the rack 20 also moves synchronously, so as to adjust the reset position of a large gear controlling the height of a needle cylinder on the hosiery machine, namely adjust the weaving zero point of the hosiery machine; thereby reducing the error of gradual change of the elasticity of the yarn and ensuring the process quality of the socks.
When the gear 19 moves to one end of the rack 20, the position sensor 21 can sense the rack 20 and provide a signal to give an alarm, so that an operator is reminded that the gear 19 is positioned at the two ends of the rack 20, the adjustment of the weaving zero point can not be carried out any more, and manual adjustment is needed; when the worker changes the yarn bobbin, the operation error of the yarn bobbin is changed, the yarn bobbin with different elasticity is changed, the elasticity of the sock generates large errors, the rack 20 can be caused to directly trigger the position sensor 21, the worker is reminded of the problem that the yarn bobbin has a change error, and the waste of raw materials is avoided.
The electronic scale 6 resets after weighing is completed, then the electric slide block 13 drives the clamping piece 2 to move along the guide rail 11 on the rack 1 through the stepping motor 3, the slide block 12 at the other end of the clamping piece 2 also synchronously moves along the guide rail 11, and the weighing box 4 is synchronously driven to be above the guide plate 14 by the movement of the clamping piece 2; the stepping motor 3 rotates for half a circle to topple the weighing box 4, when the weighing box 4 rotates, the clamping piece 2 is changed from limiting with the upper clamping piece 7 to limiting with the lower clamping piece 8, the weighing box 4 generates vibration, and socks in the weighing box 4 are more easily dropped out of the weighing box 4; socks follow then under the action of self gravity along the baffle 14 of slope to one side roll-off, accomplish socks unloading, afterwards, step motor 3 will weigh box 4 and reset, and electronic slider 13 also resets, waits to measure next socks.
The rubber band rope as the upper clamping piece 7 can effectively reduce the impact force between the clamping piece 2 and the upper clamping piece 7 when the socks fall into the weighing box 4, and can prevent the upper clamping piece 7 and the clamping piece 2 from being clamped; and the rubber band rope is used as the buffer strip, so that the rubber band rope can be conveniently replaced when the subsequent rubber band rope is abraded.
Claims (10)
1. A detection and adjustment method for a hosiery machine is characterized in that: comprises the following steps of (a) carrying out,
a. the controller controls the lifting air cylinder to lift the electronic scale 10 s-60 s before the hosiery machine finishes the hosiery weaving, the electronic scale lifts the weighing box clamped on the clamping piece until the weighing box is completely separated from the clamping piece, and the electronic scale weighs the net weight data A of the weighing box and transmits the data A to the controller;
b. the controller controls the lifting cylinder to reset, and the weighing box continues to be clamped on the clamping piece after moving downwards;
c. the controller controls the electric slide block to drive the clamping piece and the weighing box to move horizontally, so that the weighing box deviates from the position right above the electronic scale and is positioned right below a sock outlet of the hosiery machine;
d. the hosiery machine weaves the socks, and the socks fall into the weighing box from the sock outlet; at the moment, a photoelectric sensor positioned above the weighing box senses a signal and transmits the signal to a controller;
e. then the controller controls the electric slide block to drive the clamping piece and the weighing box to move horizontally, so that the weighing box is positioned right above the electronic scale;
f. the controller controls the lifting air cylinder to lift the electronic scale, the electronic scale supports the weighing box clamped on the clamping piece until the weighing box is completely separated from the clamping piece, and at the moment, the electronic scale weighs total weight data B of the weighing box and the socks and transmits the data B to the controller;
g. the controller subtracts the data A from the data B to obtain sock weight data C;
h. the controller subtracts the manually input weight data D of the qualified socks from the data C to obtain data E;
i. the controller controls the adjusting device according to the data E, and the adjusting device automatically adjusts the position of the proximity switch in the hosiery machine, so that the height of an initial needle cylinder during hosiery of the hosiery machine is adjusted;
j. after the data B is measured, the controller controls the lifting cylinder to reset, and the weighing box moves downwards and then is continuously clamped on the clamping piece;
k. the controller controls the electric slide block to drive the clamping piece and the weighing box to move horizontally, so that the weighing box deviates from the position right above the electronic scale and is positioned right below a sock outlet of the hosiery machine;
the controller controls the stepping motor to drive the clamping piece to rotate 180 degrees, the clamping piece can drive the weighing box to turn over 180 degrees, and socks in the weighing box are poured out;
m, then the controller controls the stepping motor to drive the clamping piece to rotate 180 degrees, the clamping piece can drive the weighing box to turn over 180 degrees, and the weighing box resets;
and n, finally, the controller controls the electric slide block to drive the clamping piece and the weighing box to horizontally move, so that the weighing box deviates from the position right above the electronic scale, and the steps are repeated to measure the socks next time.
2. The inspection and adjustment device constructed by the inspection and adjustment method for a hosiery knitting machine according to claim 1, characterized in that: comprises a detection device (26) arranged below the sock outlet of the hosiery machine and an adjusting device (27) fixed in the hosiery machine, wherein a controller (28) is electrically connected between the detection device (26) and the adjusting device (27); the detection device (26) comprises a rack (1), a clamping piece (2) is connected to the rack (1), and a weighing box (4) is arranged in the clamping piece (2); an upper clamping piece (7) is fixed on the side wall of the weighing box (4), the upper clamping piece (7) is arranged above the clamping piece (2) in a contact manner, and the weighing box (4) is small at the bottom and large at the top corresponding to the lower part of the upper clamping piece (7); a lifting cylinder (5) is fixed at a position right below the weighing box (4) on the rack (1), and an electronic scale (6) is fixed at the top end of the lifting cylinder (5).
3. The sensing adjustment device of claim 2, wherein: the adjusting device (27) comprises a fixed seat (16), a servo motor (17) is fixed on the fixed seat (16), and a driving device is connected on the servo motor (17); a moving piece is arranged on the fixed seat (16), and a proximity switch (18) is fixed on the moving piece; the driving device can drive the moving part to move relative to the fixed seat (16).
4. The sensing adjustment device of claim 3, wherein: the driving device comprises a gear (19) fixed on a rotating shaft of the servo motor (17); the moving piece is an arc-shaped rack (20), and one side of the rack (20) is meshed with the gear (19); position sensors (21) are fixed on the fixed seat (16) corresponding to two end points of the moving path of the rack (20); the other side of the rack (20) opposite to the gear (19) is a smooth surface, two ends of the smooth surface of the rack (20) are respectively provided with a rotating wheel (22) fixed on the fixed seat (16), and each rotating wheel (22) is in contact with the smooth surface of the rack (20); a vertical upright rod (23) is fixed on the fixed seat (16) at a position corresponding to each rotating wheel (22), and the rotating wheels (22) are rotatably sleeved on the upright rods (23); a sliding groove (24) is formed in the position, right below the rack (20), of the fixed seat (16), a sliding block (25) is clamped in the sliding groove (24) in a sliding mode, and the top end of the sliding block (25) is fixed to the bottom end of the rack (20); the sliding block (25) is fixed in the middle of the rack (20).
5. The sensing adjustment device of claim 2, wherein: the side wall of the weighing box (4) is fixed with a lower clamping piece (8) at a position corresponding to the lower part of the upper clamping piece (7), and the vertical distance between the lower clamping piece (8) and the upper clamping piece (7) is larger than the thickness of the clamping piece (2).
6. The sensing adjustment device of claim 5, wherein: one side of the clamping piece (2) is connected with a stepping motor (3).
7. The sensing adjustment device of claim 2, wherein: the upper clamping piece (7) is a rubber rope, and a stepped clamping groove (9) is formed in the weighing box (4) at a position corresponding to the buffer strip; an edge (10) is fixed at the outer side position of the top end of the weighing box (4).
8. The sensing adjustment device of claim 6, wherein: guide rails (11) are fixed on the machine frame (1) at positions corresponding to the two sides of the clamping piece (2), and a sliding block (12) and an electric sliding block (13) are respectively connected to the two guide rails (11) in a sliding manner; the sliding block (12) is connected with the clamping piece (2), and the electric sliding block (13) is fixedly connected with the stepping motor (3).
9. The sensing adjustment device of claim 6, wherein: an inclined guide plate (14) is arranged at the position, corresponding to the lower part of the weighing box (4), on the rack (1).
10. The sensing adjustment device of claim 2, wherein: a photoelectric inductor (15) is fixed on the frame (1) at a position corresponding to one side above the weighing box (4).
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| CN113862889A (en) * | 2021-11-03 | 2021-12-31 | 绍兴绿地针织有限公司 | Hosiery knitter convenient to different model socks ejection of compact |
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| CN111394879B (en) | 2021-09-21 |
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