TW201712173A - Comber - Google Patents

Abstract

A comber includes a brush for cleaning a comb of a combing cylinder, a cylinder driving motor, which is configured to drive the combing cylinder, a variable speed driving motor, which is configured to drive the brush and is arranged independently from the cylinder driving motor, and a speed controller, which is configured to drive the variable speed driving motor. The speed controller is configured to control the variable speed driving motor such that a circumferential speed of a distal end of the brush is lower at least in an acceleration period and a deceleration period of the combing cylinder than in normal operation of the comber.

Description

Combing machine

The present invention relates to a combing machine, and more particularly to a combing machine for controlling the brush for cleaning the comb of the combing drum.

The combing machine is provided with: a nipper device that holds a lap supplied from a supply source; and a combing cylinder that combs the front end of the cotton roll and grips the nipper device by the combing roller The cotton roll is combed, and the combed cotton such as inclusions or short fibers is removed from the cotton roll, and is used as a wool fabric. A brush for a needle (hereinafter, abbreviated as a brush) is a short fiber which scrapes off a needle attached to a comb of a combing cylinder. During the operation of the combing machine, the brush and the combing roller are rotated in the same direction, and the brush is cleaned by the speed difference between the brush and the needle.

Generally, in a comber, a combing roller and a nipper device are driven by a main motor, and the brush is driven by a brush motor. Further, as shown in Fig. 4, even if the rotation of the comb is changed from the start of the comber to the predetermined operation speed (stable operation speed) and the deceleration from the predetermined operation speed to the stop, the rotation of the needle is changed. Speed, the brush is still driven at a certain speed.

Further, if the diameter of the brush is reduced due to the abrasion of the brush, the rotational speed of the brush is increased. For example, the brush is removed from the machine and the diameter of the brush is measured. If the diameter of the brush is smaller than a predetermined value, the drive pulley is exchanged with the pulley having a large diameter to accelerate the rotation speed of the brush.

In addition, during the operation of the comber, the cleaning time for the comb is set, and the rotational speed of the comb is not changed, and the operating speed of the comber (rotation speed of the comb) is slowed down to operate. Case.

Japanese Laid-Open Patent Publication No. Hei 3-146725 discloses an apparatus for automatically compensating the wear of a circular brush provided in a linear comber. This device has a variable speed motor that controls the rotational speed of the circular brush by using this motor and adjusts the rotational speed according to the wear of the brush. Thereby, the peripheral speed of the peripheral portion of the circular brush is maintained constant.

In order to clean the needle well by the brush, the peripheral speed of the brush needs to be faster than the peripheral speed of the needle. If only the cleaning performance is concerned, the rotation speed of the brush is preferably faster, but with the brush. The swirling airflow (hereinafter referred to as "the accompanying airflow of the brush") also increases accordingly. As long as the comber is in stable operation, the airflow accompanying the rotation of the comb (hereinafter referred to as "the accompanying airflow of the comb") can suppress the accompanying airflow of the brush, but if the speed of the comb is lowered, it will be lost. Balanced, the airflow around the brush and the comb will be disrupted, causing the wool fabric to become messy. When the rotational speed of the brush is controlled so as to be a constant speed corresponding to the drum speed during the steady operation of the comber, the peripheral speed of the brush becomes higher than that of the comb during the acceleration or deceleration of the combing drum. The speed of the week is too large, especially in slowdown At the time, there is a mess of the wool fabric caused by the accompanying air flow of the brush.

Japanese Laid-Open Patent Publication No. Hei 3-146725 discloses a method of controlling the rotational speed of a circular brush by using a variable speed motor, and adjusting the speed according to the abrasion of the brush, whereby the periphery of the peripheral portion of the circular brush is used. The speed is maintained at a certain level. However, in the technique described in the above publication, there is no concern about the acceleration or deceleration of the combing drum.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a combing machine which can prevent the mess of wool fabric caused by the accompanying air flow of the brush during acceleration and deceleration of the combing drum.

The combing machine for solving the above problems comprises: a brush for cleaning the comb of the combing drum; a drum driving motor configured to drive the combing drum; and a variable speed driving motor for driving the brush. And configured to be independent of the drum drive motor; and a speed control unit configured to drive the variable speed drive motor, wherein the speed control unit is configured to have at least a peripheral speed of the front end of the brush The variable speed drive motor is controlled such that the above-described combing drum is accelerated and decelerated to be smaller than when the comber is stably operated.

11‧‧‧ combing head

12‧‧‧Wet roll

13‧‧‧Feed roller

14‧‧‧ nipper device

15‧‧‧ combing roller

15a‧‧‧ comb

16‧‧‧Separation roller

17‧‧‧Clamping frame

18‧‧‧ Lower nipper

17a‧‧‧ spindle

19‧‧‧ nipper arm

19a‧‧‧Upper plate

20‧‧‧ top comb

21‧‧‧ nipper shaft

22‧‧‧ clamp plate drive arm

22a‧‧‧ spindle

23‧‧‧Roller shaft

24‧‧‧ brush

24a‧‧‧hair brush shaft

25‧‧‧ suction tube

26‧‧‧Conveying roller

27‧‧‧pressure roller

30‧‧‧main motor

31‧‧‧Belt transmission

32‧‧‧Main drive shaft

33, 35‧‧‧ gears

34‧‧‧Intermediate axis

36‧‧‧ Conversion agency

37‧‧‧ Gear Set

38‧‧‧Separation roller

38a‧‧‧ Gears

39‧‧‧Servo motor

39a‧‧‧ Output shaft

40‧‧‧ drive gear

41‧‧‧Conveying roller shaft

41a, 42a, 43a‧‧‧ gears

42‧‧‧Press roller shaft

43‧‧‧Rotary axis

44‧‧‧Belt transmission

45‧‧‧Motor Roller Motor

46‧‧‧Belt transmission

50‧‧‧brush motor

51‧‧‧Belt transmission

52‧‧‧Control device

53,54‧‧‧Inverter

55‧‧‧CPU

56‧‧‧ memory

57‧‧‧Sensor

L‧‧‧

Fig. 1 is a view showing the configuration of a drive system of an embodiment of a comber.

Figure 2 is a schematic side view of the combing head.

Figure 3 shows the combing roller and brush for the operation of the comber. A graph of the speed change.

Fig. 4 is a graph showing changes in the speed of the combing cylinder and the brush during the operation of the prior art comber.

Hereinafter, an embodiment of the present invention will be described based on the first to third figures.

The comber has a working unit in which a plurality of combing heads 11 are arranged. In addition, in the first figure, only one combing head 11 is shown. As shown in Fig. 2, the combing head 11 includes a pair of lap rolls 12, a nipper device 14 having a feeding roller 13, a combing drum 15, and two pairs of separation rollers 16 disposed adjacent to the front and rear direction of the combing head 11. . The nipper device 14 has a nipper frame 17 that is reciprocally oscillated in the front-rear direction above the combing drum 15, and the nipper frame 17 has a lower nipper 18 at its bottom. The nipper arm 19 is rotatably provided via the support shaft 17a, and the upper nipper 19a is fixed to the front end of the nipper arm 19. The upper nipper plate 19a is configured to open and close at a predetermined timing in synchronization with the oscillating motion of the nipper frame 17, and to sandwich the lap L between the upper nipper plate 19a and the lower nipper plate 18. The top comb 20 is attached to the nipper frame 17 in front of the lower nipper plate 18 in such a manner as to perform a predetermined movement in synchronization with the nipper frame 17.

The nipper shaft 21 is disposed behind the combing drum 15 and below the nipper frame 17 so as to be rotatable. A first end portion of the squeegee frame driving arm 22 is fixed to the nipper shaft 21 so as to be rotatable integrally therewith, and the nipper frame 17 is rotatably supported via the fulcrum 22a at the second end portion of the nipper frame driving arm 22. After the end. The nipper frame 17 is rotated (swinging motion) by the nipper shaft 21, and the front end of the lower nipper plate 18 is connected to the separation roller 16 The approaching and separating modes oscillate in the front-rear direction.

The combing cylinder 15 has a comb 15a (combed section) and is rotatably supported by the drum shaft 23. The front end of the roll L held by the nipper device 14 is combed by the needle 15a by the driving of the drum shaft 23. The amount of cotton that is removed by combing the needle 15a during combing is varied according to the timing of the roll L held by the comb 15a combing device 14.

Below the combing roller 15, a brush 24 for cleaning the comb 15a of the combing roller 15 is provided, and a suction tube 25 is provided below the brush 24. Short fibers or cotton granules removed from the lap L by the combing drum 15 and the top comb 20 are sucked into the suction tube 25.

A pair of conveying rollers (delivery rollers) 26 and a pair of pressing rollers 27 are provided in front of the separation roller 16 (on the left side of Fig. 2).

Next, the driving mechanism of the combing head 11 will be described based on Fig. 1 . In the first drawing, only one combing head 11 is shown, but a plurality of combing heads 11 are disposed in the longitudinal direction of the comber (the horizontal direction in the first drawing), and the driving shafts shared by all the combing heads 11 are shared. (main drive shaft 32 to be described later) is driven.

As shown in FIG. 1, the drive mechanism includes a main motor 30, a belt transmission 31, and a main drive shaft 32 that is driven by the main motor 30 via the belt transmission 31. A gear 33 is fixed to the main drive shaft 32 so as to be rotatable integrally with each other across the combing head 11, and the rotation of the gear 33 is transmitted to the intermediate shaft 34 via the gear 35. Between the intermediate shaft 34 and the nipper shaft 21, a switching mechanism 36 for converting the rotational motion of the intermediate shaft 34 in one direction into the oscillating motion (reciprocating rotation) of the nipper shaft 21 is provided. . The intermediate shaft 34 is coupled to the drum shaft 23 via a gear train 37. That is, the main motor 30 functions as a drum drive motor that drives the combing drum 15.

As shown in Fig. 1, two servo motors 39 are provided on both sides of the separation roller shaft 38 of each separation roller 16, and the output shafts 39a of the two servomotors 39 are fixedly fixed and fixed to each other. A drive gear 40 that meshes with gears 38a at both ends of each of the separation roller shafts 38. That is, each of the separation roller shafts 38 is driven by the two servo motors 39 from both sides.

The rotation of the main drive shaft 32 is transmitted to the rotary shaft 43 via the belt transmission 44, and the rotary shaft 43 transmits the rotation to the transport roller shaft 41 and the press roller shaft 42. The rotation of the rotating shaft 43 is transmitted to the conveying roller shaft 41 via the gear 43a and the gear 41a, and is transmitted to the pressing roller shaft 42 via the gear 43a and the gear 42a. Further, the lap roller 12 is driven by the lap roller motor 45 and via the belt transmission 46.

As shown in Fig. 1, the drive mechanism includes a brush motor 50, and the brush motor 50 drives the brush shaft 24a via the belt transmission 51. The control device 52 as the speed control unit is connected to the main motor 30 and the brush motor 50 via the inverters 53, 54. The main motor 30 and the brush motor 50 are configured to be driven by inverters 53, 54 controlled in accordance with an instruction from the control unit 52. That is, the variable speed drive motor (the brush motor 50) is provided independently of the drum drive motor (main motor 30) that drives the combing drum 15, and drives the brush 24 of the comb pin 15a of the cleaning comber cylinder 15. . Further, the control device 52 is connected to the servo motor 39 and the winding roller motor 45 via an inverter (not shown), and is also controlled by the servo motor 39 and the winding roller motor 45.

The control device 52 includes a CPU 55 and a memory 56. The memory 56 stores various control programs necessary for driving the main motor 30, the servo motor 39, the winding roller motor 45, and the brush motor 50, and various materials, maps, and relational expressions required to execute the program. In the memory 56, the peripheral speed of the front end of the brush 24 is compared with the peripheral speed of the tip end of the comb 15a to become a predetermined speed ratio A, and the rotational speed of the brush 24 relative to the combing drum 15 is displayed (combed machine) The speed, the relationship between the appropriate speed, the map, or the table. The control device 52 is driven by the data stored in the memory 56 during the steady operation of the comber so as to be driven at an appropriate speed corresponding to the rotational speed of the combing drum 15 (the operating speed of the comber). The brush motor 50 is controlled. Furthermore, the speed ratio A is set in the range of 1.5 to 2.

The control device 52 controls the brush motor 50 such that the peripheral speed of the front end of the brush 24 is smaller than the circumferential speed at the time of stable operation, at least during acceleration and deceleration of the combing roller 15. In the present embodiment, the control device 52 controls the brush motor 50 by using the average rotational speed of each of the combing rollers 15 as the rotational speed of the combing roller 15. The control device 52 is based on the speed ratio of the peripheral speed of the front end of the brush 24 at the time of acceleration and deceleration of the combing roller 15 to the peripheral speed of the front end of the comb 15a, and is the same as the speed ratio A at the time of stable operation of the comber. The way to control.

The sensor 57 is configured to detect the diameter of the brush 24 and functions as a brush diameter detecting portion. Further, the detection signal is input from the sensor 57 to the control device 52. The sensor 57 is configured to automatically detect the diameter of the brush, and outputs a detection to the control device 52. signal. The control device 52 controls the brush motor 50 based on the detection signal input from the sensor 57, that is, the brush diameter. That is, the diameter of the brush detected by the sensor 57 is fed back to the control of the brush motor 50 of the control device 52.

Further, the control device 52 is configured to control the servo motor 39 and the winding roller motor 45 as well.

Next, the action of the comber configured as described above will be described.

At the time of the operation of the comber, the control device 52 drives the main motor 30 via the inverter 53, whereby the nipper shaft 21 performs a swinging motion (reciprocating rotation). According to the swing of the nipper shaft 21, the lower nipper plate 18 is oscillated back and forth together with the nipper frame 17, and on the other hand, the upper nipper plate 19a is swung up and down, whereby the upper nipper plate 19a and the lower nipper plate 18 are alternately performed. The action of holding the roll L between the front end portions and opening the grip action. Further, the front end of the roll L held by the nipper device 14 is combed (combed) by the comb 15a of the combing roller 15. The short fibers or the like which are attached to the needles of the needles 15a by combing the needles 15a are scraped off from the needles 15a by the rotation of the brush 24, and are attracted by the attraction. The suction pipe 25 is sucked in and collected in the cotton collecting portion.

As shown in Fig. 3, during the acceleration and deceleration of the combing drum 15 (in other words, during the start-up operation and the stop operation of the comber), the brush motor 50 for driving the brush 24 is a brush 24 The peripheral speed of the front end becomes smaller than that of the constant operation of the comber, and is controlled by the control device 52. Therefore, during the acceleration and deceleration of the combing roller 15, the peripheral speed of the front end of the brush 24 can be prevented from becoming higher than the front end of the comb 15a. The weekly speed is too fast.

If the brush 24 is rotated at a high speed, a concomitant air flow is generated around the brush 24. In the state in which the combing roller 15 is also rotated at a high speed as in the steady operation of the comber, the accompanying airflow of the comb 15a serves to suppress the accompanying airflow of the brush 24. Therefore, the disorder of the wool fabric due to the accompanying air flow of the brush 24 can be prevented.

As in the prior art shown in Fig. 4, when the rotational speed of the brush 24 is maintained at the same high rotational speed as that of the comber, even when the comber is started or stopped, the brush is driven. In the motor 50, the accompanying airflow of the comb 15a cannot suppress the accompanying airflow generated around the brush 24, and the mess of the wool fabric is caused by the accompanying airflow of the brush 24.

However, as shown in Fig. 3, at the time of starting or stopping the comber, the brush motor 50 is such that the peripheral speed of the front end of the brush 24 becomes smaller than the stable operation of the comber. Controlled by the control device 52. Therefore, during the acceleration and deceleration of the combing roller 15, the peripheral speed of the front end of the brush 24 can be prevented from becoming too fast as the peripheral speed of the front end of the comb 15a, and the mess of the wool fabric caused by the accompanying airflow of the brush 24 can be prevented. .

The signal indicating the diameter of the brush detected by the sensor 57 is input to the control device 52, and the control device 52 feeds back the input signal, that is, the detected brush diameter, to the control of the brush motor 50. That is, due to the abrasion of the brush 24, the diameter of the brush becomes small, and the peripheral speed of the front end of the brush 24 becomes smaller at the same rotational speed, the control device 52 is the peripheral speed and wear of the front end of the brush 24. Previous brush 24 front end The peripheral speed becomes a constant speed, and the brush motor 50 is controlled at a rotational speed in which the abrasion of the brush 24 is taken into consideration.

According to this embodiment, the effects shown below can be obtained.

(1) The combing machine includes: a brush 24 for cleaning the comb 15a of the combing roller 15, a main motor 30 (roller drive motor) for driving the combing roller 15, and a variable speed drive motor (brush motor) 50), which is provided separately from the main motor 30 and drives the brush 24; and a control device 52 (speed control unit) that drives the brush motor 50. Further, at least during the acceleration and deceleration of the combing roller 15, the control device 52 controls the brush motor 50 such that the peripheral speed of the front end of the brush 24 becomes smaller than the peripheral speed at the time of stable operation of the comber. According to this configuration, at the time of acceleration and deceleration of the combing roller 15, the circumferential speed of the front end of the brush 24 can be prevented from being excessively faster than the peripheral speed of the tip end of the comb 15a, and the accompanying airflow due to the brush 24 can be prevented. Wool fabrics are messy. Therefore, it is possible to prevent the mess of the wool fabric caused by the accompanying airflow of the brush 24 during the acceleration and deceleration of the combing roller. Further, in order to improve the quality of the sliver spun from the comber, the relative speed of the outer circumference of the comb 15a and the brush 24 in accordance with the rotational speed of the comb 15a may be increased.

(2) The control device 52 is a ratio of the speed of the peripheral speed of the front end of the brush 24 to the peripheral speed of the tip end of the comb 15a during acceleration and deceleration of the combing roller 15, and the speed ratio of the comber during steady operation. In the same manner, A controls the brush motor 50. Therefore, it is not necessary to set the respective speed ratios during acceleration and deceleration and during stable operation, and control can be facilitated.

(3) Detecting the diameter of the brush with the diameter of the detecting brush 24 The portion (sensor 57), and the control device 52 controls the brush motor 50 based on the diameter of the brush detected by the sensor 57. Previously, since the brush diameter was detected by removing the brush 24 from the machine table, it took time to detect the brush diameter, but by providing the sensor 57, the detection of the brush diameter can be simplified. Further, since the detected brush diameter is fed back to the control of the brush motor 50, the rotational speed of the brush 24 can be controlled so as to be a suitable rotational speed in accordance with the wear state of the brush 24.

(4) As the brush diameter detecting portion, a sensor 57 capable of automatically detecting the diameter of the brush is provided, and the detection result of the sensor 57 is directly input to the control device 52. Therefore, the operator does not need to input the value of the brush diameter detected by the brush diameter detecting portion to the control device 52.

The embodiment is not limited to the above, and for example, it may be embodied as follows.

The brush diameter detecting portion is not limited to the configuration in which the outer diameter of the brush 24 is detected by the sensor 57. For example, the brush 24 may be fixed to a predetermined mounting portion of the comber via a bracket (not shown) so that the center of rotation of the brush 24 and the center of rotation of the combing roller 15 can be adjusted. That is, the bracket supporting the brush 24 is fixed to the predetermined mounting portion of the comber in a positionally changeable manner. In this case, the index indicating the fixed position of the holder supporting the brush 24 is set. Further, the operator can read the index and input the value of the brush diameter minus the amount of wear of the brush 24 to the control device 52. The confirmation of the diameter of the brush, that is, the reading of the index, can be confirmed, for example, as long as it can be periodically maintained by the machine. In this case, the indexing system constitutes a brush diameter detecting portion.

The control device 52 can also rotate the brush motor 50 The brush motor 50 is controlled such that the rotational speed and the rotational speed of the combing roller 15 are constantly synchronized. The combing roller 15 is rotated in one rotation, and the comb 15a is combed in the state of the reel L (the state in which the comb 15a is engaged with the reel L), and the comb 15a is not engaged with the reel L, and is rotated. The manner in which the speed changes is driven by the control unit 52. Therefore, instead of changing the rotational speed of the brush 24 in accordance with the average speed of each revolution of the combing roller 15, the rotational speed of the brush 24 is changed in accordance with the change in speed during the rotation of the combing drum 15 for one revolution. This improves cleaning performance.

The fiber length or the fineness (thickness) of the fibers constituting the cotton roll L may be used to change the speed ratio of the peripheral speed of the front end of the brush 24 to the peripheral speed of the tip end of the needle 15a. Fine fibers are susceptible to airflow, and elongated fibers are more susceptible to airflow. Therefore, in the case of fine fibers, the aforementioned speed ratio can be reduced.

The various shafts provided to the combing head 11 can be either side driven or single side driven.

The squeezing roller 12 and the separating roller 16 may be configured to be driven by the autonomous drive shaft 32 via a belt transmission or a gear train.

The speed ratio of the peripheral speed of the tip end of the brush 24 to the peripheral speed of the tip end of the comb 15a may be set to be smaller during stable operation during acceleration and deceleration, but it is preferably set to be larger than 1 in order to maintain the cleaning performance. Further, as long as the peripheral speed of the front end of the brush 24 is smaller during the acceleration and the time of the deceleration, the peripheral speed of the tip end of the brush 24 is proportional to the speed of the peripheral speed of the tip end of the needle 15a, and it is also possible during acceleration and deceleration. It becomes larger when it is stable.

11‧‧‧ combing head

12‧‧‧Wet roll

14‧‧‧ nipper device

15‧‧‧ combing roller

16‧‧‧Separation roller

21‧‧‧ nipper shaft

23‧‧‧Roller shaft

24‧‧‧ brush

24a‧‧‧hair brush shaft

26‧‧‧Conveying roller

27‧‧‧pressure roller

30‧‧‧main motor

31‧‧‧Belt transmission

32‧‧‧Main drive shaft

33, 35‧‧‧ gears

34‧‧‧Intermediate axis

36‧‧‧ Conversion agency

37‧‧‧ Gear Set

38‧‧‧Separation roller

38a‧‧‧ Gears

39‧‧‧Servo motor

39a‧‧‧ Output shaft

40‧‧‧ drive gear

41‧‧‧Conveying roller shaft

41a, 42a, 43a‧‧‧ gears

42‧‧‧Press roller shaft

43‧‧‧Rotary axis

44‧‧‧Belt transmission

45‧‧‧Motor Roller Motor

46‧‧‧Belt transmission

50‧‧‧brush motor

51‧‧‧Belt transmission

52‧‧‧Control device

53,54‧‧‧Inverter

55‧‧‧CPU

56‧‧‧ memory

57‧‧‧Sensor

Claims (5)

A combing machine comprising: a brush for cleaning a comb of a combing drum; a drum driving motor configured to drive the combing drum; and a variable speed driving motor configured to drive the brush. Further, the speed control unit is configured to drive the variable speed drive motor, and the speed control unit is configured to have a front end of the brush. The variable speed drive motor is controlled such that the peripheral speed becomes smaller than at least during the acceleration and deceleration of the combing drum as compared with the steady operation of the comber. The combing machine of claim 1, wherein the speed control unit is configured to adjust a speed ratio of a peripheral speed of the tip end of the brush to a peripheral speed of the tip end of the comb, during acceleration and deceleration of the combing drum The variable speed drive motor is controlled in the same manner as in the case of stable operation of the comber. The comber of claim 1, further comprising a brush diameter detecting unit configured to detect a diameter of the brush, wherein the speed control unit is configured to be based on the hair The brush diameter detected by the brush diameter detecting unit controls the variable speed drive motor. The combing machine of claim 3, further comprising a support bracket supporting the brush, wherein the support bracket is fixed in such a manner that the distance between the center of rotation of the brush and the center of rotation of the combing roller can be changed Can change the position of the comber, The brush diameter detecting unit displays the index of the fixed position of the support bracket with respect to the comber. The combing machine of claim 1 or 2, wherein the combing roller is driven during a rotation by a rotation speed, and the speed control unit is configured to rotate at the rotation speed of the brush The variable speed drive motor is controlled in such a manner that the speed change in one of the comb drums changes synchronously.