JPH0224927B2 - - Google Patents

Description

[Detailed description of the invention]

INDUSTRIAL APPLICATION FIELD The present invention relates to a fiber opening method in a mixed batting process. Prior Art In the mixed batting process, a spreading head is run along a group of aligned bales to be opened, and a spreading roller built into the opening head spreads the surface of the bales to be opened. A fiber opening device is used that scrapes the fiber tufts from the fibers. Problems to be Solved by the Invention By using the automatic opening device as described above, opening tufts are scraped from multiple bales of different types and grades to be opened in accordance with a predetermined blending ratio. be able to. However, due to differences in packaging conditions, not all bales to be spread have the same fiber layer density, and even within the same bale to be spread, fibers may differ between the upper and lower layers. There are often differences in stacking density. For this reason, when an opening roller is pressed against the surface of the bale to be opened and the fiber tufts are opened by the rotational scraping force of the opening roller, the opening conditions vary for each bale, causing This has caused quality defects such as fiber damage due to fiber defects and excessive opening, and fluctuations in the blending ratio. The main object of the present invention is to provide a solution to the above-mentioned problems found in conventional cotton mixing machines, particularly in opening devices. Means for Solving the Problems In view of the above object, the present invention measures the fiber stacking height of each bale to be opened prior to opening,
A spreading program is prepared in advance for each bale to be opened based on the measured values, and in the mixed batting process in which the opening operation is performed according to the program, the fiber stacking height direction is set for each bale to be opened. about,
It is divided into three areas: initial scraping area, intermediate scraping area, and final scraping area, and for each area, the initial scraping amount, initial scraping ratio, intermediate scraping amount, intermediate scraping ratio, and final scraping are determined. The amount and final scraping ratio can be set. Effect Since the present invention has the above-mentioned configuration, the opening conditions are set corresponding to the difference in the fiber lamination density in the stacking height direction for each bale to be opened. Embodiment FIG. 1 is an overall perspective view of a fiber-spreading device used in carrying out the method of the present invention, and FIG. 2 is a schematic front view of a fiber-spreading head in the fiber-spreading device. Further, FIG. 3 is a perspective view illustrating the main structure of the above-mentioned fiber opening device and fiber opening head. As seen in these drawings, rails 2, 2 that support the main body of the opening device 1 in a self-propelled manner along the alignment line of the bale groups A, B, C...F to be opened.
A pneumatic duct 3 of opened fiber tufts is provided. The fiber opening device 1 includes a running frame 5 equipped with running wheels 4, 4, . It consists of a spreading head 7 that extends horizontally so as to be substantially orthogonal to the direction. Inside the track 6, there is a computer (not shown) for setting a fiber opening program, a drive device (not shown) for running the track 6, and a fiber opening head 7.
An angle encoder 8 is incorporated to read the vertical movement stroke. Also, a motor 9 for transmitting the vertical stroke to the opening head 7 is incorporated in the track 6, and this motor 9 is used as a control device for the vertical stroke of the opening head 7 to control the opening of the veil to be opened. On the side end face of the truck 6 facing the group, there is an upper limit detection switch LS ₁ connected to the control circuit of the computer.
Lower limit detection switch LS ₂ , low speed increase switch LS ₃
and a low speed down switch LS ₄ .
On the other hand, the opening head 7 has a chain wheel mechanism 1 with a balance weight connected to the motor 9.
0, and is suspended and supported on the track 6 so as to be vertically movable. Inside the opening head 7, two opening rollers 11a and 11b extending substantially horizontally are rotatably arranged opposite to each other. A plurality of grid bars 12, 12, . . . , which swing around the center of rotation, are arranged in alignment with predetermined fiber tuft passing intervals maintained. These grid bars 12, 12... constitute an integrally structured bale pressing member to be spread by having their proximal ends and distal ends fixed by frame members 14, 15. The part is the pressing piece 12 of the lowering stop switch LS ₅ installed in the opening head 7.
It is formed in a. As shown in FIG. 2, the opening roller 11a is rotated counterclockwise by a motor (not shown), and the opening roller 11b, which is disposed opposite to the opening roller 11a, is rotated clockwise and opened. The fiber tufts are fed into a cotton supply duct 1 with a suction port facing above these opening rollers.
Send it within 6. Furthermore, the frame member 14,1
Support rollers 17a and 17b are provided on the sides of the opening head 5 and are rotatable over substantially the entire length of the opening head 7.
This prevents a pressing force exceeding an appropriate limit from being applied to the grid bars 12, 12, . . . during fiber opening. Further, on the inner wall surface of the main body of the opening head 7 facing the support rollers 17a, 17b, when the opening head 7 descends toward the upper surface of the veil groups A, B, C...F to be opened, there is a lowering speed. A photoelectric sensor 18a, 1 for switching from a high speed state to a low speed state
8b is attached. On the other hand, the rail 2,
In the installation area No. 2, there is a proximity switch LS ₆ for controlling the stop position of the track 6 for each of the bale groups A, B, C...F to be opened, and a spreading head 7 for controlling the opening target bale groups A, B, C...F. Proximity switch to detect the start of each fiber stack height reading operation
LS ₇ is installed. Hereinafter, the method of the present invention will be described in detail based on usage examples of the above-mentioned fiber opening device. After arranging a predetermined number of bale groups A, B, C...F to be opened along the running line of the track 6, the opening head 7 is moved to the raised position defined by the upper limit detection switch _LS1. The traveling motor of the track 6 is started while the fiber is held at the same position, and the track 6 is introduced into the fiber opening area. When the front end of the track 6 is located above the first bale A 1 to be spread that belongs to the first bale group A to be spread _, the proximity switch LS ₆ for regulating the stop position is activated and the track 6 is temporarily stopped. At the same time, a downward stroke is transmitted to the opening head 7 by starting the motor 9. When the photoelectric sensors 18a and 18b detect that the descending distance of the opening head 7 has reached a preset length, the opening head 7, which has been descending at a high speed until then, is switched to a low-speed descending state. . By lowering the opening head 7 at a low speed, the grid bars 12, 12, which are elastically supported on the lower surface of the opening head 7, are moved to the first veil to be opened belonging to the group A of veils to be opened.
Lowering stop switch LS ₅ when the top of A ₁ is pressed
is activated to terminate the low speed downward operation of the opening head 7. At this time, the angle encoder 8 selects the first veil to be opened belonging to the group A of veils to be opened.
Read the fiber stacking height of A ₁ and use this read value as the basis for setting the initial scraping amount and initial scraping ratio, intermediate scraping amount and intermediate scraping ratio, and final scraping amount and final scraping ratio. Send it as data to a computer for setting the fiber opening program. Thereafter, by restarting the travel motor, the opening head 7 moves by itself on the rails 2, 2 and picks up the second bail A ₂ to be spread, which is placed adjacent to the first bail A ₁ to be spread. Then, in accordance with the same procedure as described above, the fiber stacking height in the veil _A2 to be opened is read and the basic data is sent to the computer. This taking and data sending operation is performed for all the predetermined number of bales to be spread that belong to the bale group to be spread A in the same manner as described above. When the above-mentioned reading and data sending operations are completed for all the bales to be spread that belong to the bale group to be spread A, the proximity switch LS ₇ provided on the travel path of the truck 6
The opening head 7 selects the target bale group A for opening.
It is detected that the end point has been reached. In this state, the motor 9 is reversed and the opening head 7 is raised at high speed, and at the same time the truck 6 is moved to the second bale group B to be spread, which is arranged adjacent to the first bale group A to be spread.
It begins to move on its own towards the destination. The opening head 7 is the second
When the first bale to be spread B 1 belonging to the bale group B to be spread is located above the bale B ₁ to be spread, a stop position regulating device similar to the above provided corresponding to the second bale group B to be spread is set. The proximity switch LS ₆ is activated to stop the truck 6, and the fiber stacking height for the second bale group B to be opened is read and the basic data is sent to the computer in the same manner as described above. Ru. This operation is performed for the subsequent third to sixth bale groups C, D, E, and F to be opened in the same manner as described above. When the reading of the fiber stacking heights and the sending of basic data to the computer for the first to sixth bale groups A, B...F to be opened, which are aligned on one side of the travel range of the truck 6, and the sending of basic data to the computer are completed, The traveling motor of the track 6 is reversed, and the track 6 returns to its origin with the opening head 7 stationary in the raised position. In this state, an operator operates the control panel 19 of the computer placed in the opening chamber, and determines the initial scraping amount, initial scraping magnification, and intermediate scraping amount of each bale to be opened based on the basic data. The intermediate scraping magnification, the final scraping amount, and the final scraping magnification are input into the computer. An example of how to input data to the computer is shown below. The fiber stacking of the bale to be opened is divided into an initial scraping area Ri with a height of 100 mm, an intermediate scraping area Rm, and a final scraping area Rf with a height of 100 mm along the height direction.
In the initial scraping area Ri and the final scraping area Rf, the fiber opening scraping operation is performed continuously with the unit scraping amount changed in four stages, and the intermediate scraping ratio 1 described later is As a standard, the initial scraping ratio is 2, and the final scraping ratio is 2.
Set to 1.5. The heights of the initial scraping area Ri and final scraping area Rf can be freely set based on the fiber packing density in the intermediate scraping area Rm of the veil to be opened. In the intermediate scraping region Rm, the standard scraping amount (Lo) is set to 2 mm and the intermediate scraping ratio is set to 1 as the average fiber tuft scraping conditions corresponding to the required production amount. The unit scraping amount in the initial scraping area Ri and the final scraping area Rf, which are divided into four parts of 25 mm along the height direction, that is, the step lowering amount of the opening head 7, is determined by the following formula using a computer. It is therefore calculated and entered into the memory of the computer as the downward movement mode of the opening head. Lo + [(Lo x scraping magnification) - Lo] x 1 Lo + [(Lo x scraping magnification) - Lo] x 3/4 Lo + [(Lo x scraping magnification) - Lo] x 1/2 Lo + [(Lo x scraping magnification) - Lo] x 1/4 The unit scraping amount calculated by the above formula is shown in Table 1 below.

[Table] The unit scraping amount for each scraping area is calculated based on the above intermediate scraping magnification of 1 and the standard scraping amount (Lo) in the intermediate scraping area, and based on this, the computer runs a fiber opening program. Incorporate. Thereafter, the track 6 moves by itself according to this opening program, and the opening head 7 is positioned above the bale to be opened. In this state, the opening roller 11
a and 11b are started, and the fiber tufts are scraped off from the upper surface of the bale to be opened and sucked into the cotton supply duct 16. The fiber tufts flow into the pneumatic duct 3 via the cotton supply duct 16 and are sent out towards a subsequent device. First to sixth bale groups A to be opened are aligned on one side of the travel range of the track 6;
When the opening operation for B...F is completed, the truck 6 horizontally rotates 180 degrees on the traveling frame 5, and the opening head 7
The seventh to twelfth bale groups to be opened are arranged on the other side of the travel range of the track 6 (not shown).
Then, move the track 6 to the operating position.
Then, the opening head 7 reads the fiber stacking height and sets the scraping amount and scraping magnification for each bale to be opened belonging to the seventh to twelfth bale groups to be opened, according to the same procedure as described above. , creates a fiber opening program and executes a fiber opening operation based on the fiber opening program. Although the present invention has been described above in detail based on the description of the embodiments, the scope of the present invention is not limited to the above-mentioned embodiments only, and can include numerous applications. For example, after reading the fiber stacking heights of all the bales to be opened that are aligned on both sides of the traveling area of the track 6 and creating a spreading program based on this, It is also possible to start the opening operation for the fibers. Effects of the Invention According to the present invention, the opening conditions are set corresponding to the difference in the fiber lamination density in the stacking height direction for each bale to be opened, and the cotton blend ratio due to the above difference is reduced. Fluctuations and quality deterioration can be prevented, making it possible to provide highly accurate and homogeneous blended cotton products.

[Brief explanation of drawings]

FIG. 1 is an overall perspective view of a fiber-spreading device used in carrying out the method of the present invention, and FIG. 2 is a schematic front view of a fiber-spreading head in the fiber-spreading device. Further, FIG. 3 is a perspective view illustrating the main structure of the device of the present invention. A, B, C...F: group of bales to be opened, 1: opening device, 2, 2: rail, 6: track, 7: opening head, 8: encoder (angle encoder).

Claims (1)

[Claims] 1. Prior to opening, the fiber stacking height of each bale to be opened is measured, and a spreading program is prepared in advance for each bale to be opened based on the measured value, In the mixed batting process in which the fiber opening operation is performed using this program, each bale to be opened is divided into three areas in the fiber stacking height direction: an initial scraping area, an intermediate scraping area, and a final scraping area. , a fiber opening in a mixed batting cotton process characterized by setting an initial scraping amount, an initial scraping ratio, an intermediate scraping amount, an intermediate scraping ratio, and a final scraping amount and final scraping ratio for each area. Method.