JPS6342425A - Scaling method for fiber - Google Patents

Abstract

PURPOSE:To improve the feeding ability and scaling accuracy for fibers by switching a conveyor between a high and a low speed and putting it in continuous operation, and opening and closing the shutter of the entrance part of a scaling device. CONSTITUTION:The conveyor 2 is switched from high-speed operation to low- speed operation before a constant amount of fibers peeled of a spiked lattice conveyor 2 are carried in the scaling device 7. then the entrance part 7b is closed with the shutter 10 immediately after the constant amount of fibers are carried in, and the conveyor 2 is further operated continuously to stock the specific amount of fibers on the shutter 10. An exit part 7c is opened and closed so as to throw in the fibers in the scaling device 7 and then the shutter 10 is put in operation to open the entrance part 7b, thereby throwing the fibers on the shutter 10 in the scaling device 7. Then, the conveyor 2 is placed in the high-speed operation to scale fibers continuously. Thus, the time loss due to the halt of the conveyor 2 is eliminated and fibers are inhibited from being thrown in continuously when scaled.

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention is applicable to automatic hopper feeders, etc.
The present invention relates to a method for weighing fibers for weighing and feeding the fibers to a subsequent process.

(Prior art) When a conventional hopper feeder uses 11 scales to weigh the fibers transported by a spike tratice conveyor, a fixed amount of fiber is stored in the borrowed machine. ! When the fibers were accumulated, the operation of the spike tratice conveyor was stopped, and the operation of the spike tratice conveyor was restarted after dropping the 11 miscellaneous items in the scale-btz.

(Problems to be Solved by the Invention) Therefore, there has been a problem in that the operating efficiency of the hopper feeder is reduced due to the down time of the spike tratice conveyor, and the string feeding capacity of the hopper feeder is reduced.

The purpose of the present invention is to solve the above problems and improve fiber feeding capacity &3.
It is an object of the present invention to provide a weighing method for ml11 that can improve reading accuracy.

(Means for Solving the Problems) The present invention provides for receiving fibers peeled from a conveyor and discharging the fibers from the conveyor before a fixed amount of fibers is fed into a weighing device installed to intermittently drop the fibers at each fixed amount. Switching from high-speed operation to low-speed operation, and at the same time as a constant current fiber is fed into the scale fi1, the inlet of the balance fi1 is closed with a shutter,
Furthermore, after operating the conveyor without permission and accumulating a predetermined amount of fibers on the ivy and dropping the fibers in the weighing device, the conveyor is operated without permission and the fibers in the weighing device are dropped, and then the same i.i. The gist of the present invention is to provide a fiber weighing method in which fiber weighing is started with the inlet section opened, the shattered waste loaded into the weigher, and the conveyor restored to high-speed operation.

(Function) The present invention switches the conveyor for feeding the fibers to the weighing device to low speed operation before a fixed amount of fiber is put into the weighing device and continues to operate it, so that a fixed amount of fiber is placed in the weighing device. The inlet of the weighing device is closed with a shutter when the fibers are loaded, and the fibers are stored on the shutter, thereby shortening the time required for one fiber weighing process, and immediately before a fixed amount of fiber is loaded into the weighing device. In this example, the fibers are peeled off from a conveyor little by little and fed into a weighing device.

Next, a device used in the present invention and a practical example of a method of implementing the present invention using this device will be described.

The spike tratice conveyor 2 installed in the machine body 1 of the hopper feeder F has an upper side which is rotatably driven by a motor 4 in order to transport the fibers fed from the previous process onto the volume conveyor 3 forward and upward. It is hung so that it can rotate around the drive roller 2a and the lower driven roller 2b, and is tilted upward toward the front, and is attached to the spike trusses conveyor 2 on the rear side near its upper end. On the front side near the upper end of the spike tratice conveyor 2, a comb 5 is provided to adjust the textile slate that is transferred upward. A stripping comb 6 is provided to scrape off dirt.

A weighing machine 7 placed 172 below the stripping comb 6 receives and weighs the w4N scraped off by the stripping comb 6, and when the stored fiber)l reaches a constant 01, the weighing machine 7 The apron opening/closing plate 7a is mounted on the front and rear surfaces of the apron to open and close the outlet 7C of the weighing device 7. , 7a are pivotally mounted to be able to swing in opposite directions, while supports 110a and 10a are provided above the weighing device 7 to open and close the inlet portion 7b of the weighing device 7. A pair of controllably pivoted front and rear shutters 10.10 is installed, and when the inlet portion 7b of the weighing device 7 is closed with both shutters 10, JIIIC can be stored on both shutters 10.

The hanging fixture 8 that suspends the weighing device 7 is equipped with an ff1lA sensor for detecting the fiber type set in the weighing device 7 and transmitting an electrical signal when the fiber weight 1 reaches a desired set value. A load cell is attached, and this load cell has a balance ff1
8 is constant at time T2 before a certain amount of fiber is fed into 17.
), and is set to transmit a constant G1 signal at the time To when a fixed amount of RH pheasant is fed into the weigher 7, and when the load cell transmits the pre-quantitative signal, the motor 4 is activated. The speed is reduced and the Spike Drade conveyor 2 is switched from high-speed operation to low-speed operation and continues to operate, and when weighing is completed and the load cell sends a quantitative signal, both shutters 10 are oscillated in the approaching direction υ control. The inlet portion 7b of the weighing device 7 is closed by both shutters 10,
A time point T when some time has passed after both shutters 10 are closed
At step 3, a start signal for the weigher m set by a timer or the like is transmitted, and both opening/closing plates 7a of the weigher 7 are opened at the outlet portion 7 of the weigher 7.
C is released J: Swing control is performed in the direction of sea urchin separation, and the scale 6
After discharging the navy blue 1a in the weighing device 7, the swinging control is performed in the approach direction so that the outlet portion 7C of the weighing device 7 is closed again. Furthermore, at time point TO when the quantitative signal from the load cell is transmitted, the motor 4 is accelerated again and the spike trusses conveyor 2 is restored from low-speed operation to high-speed operation, or once switched to medium-speed operation and then back to high-speed operation. will be restored. After a predetermined period of time has elapsed since the spike tratice conveyor 2 was switched to high-speed operation, a predetermined amount of m is placed on both V-vines 10 held in a state where the inlet portion 7b of the weighing device 7 is closed.
At the time when f(C is stored, for example, at time T1 when the spiked shutter compare 2 is switched from the medium-speed operation to the high-speed operation, a signal for operating both shutters V ivy 10 is sent and both shutters 10 are separated. The fibers on both shutters 10 are fed into the weigher 7 together with the fibers peeled off from the spike tratice conveyor 2, and weighing is started in the weigher 7, and from the quantitative signal transmission time point To. In each scale HB cycle IH up to the next constant length signal transmission point ○, the weighing time H1 is from the weighing start time T1 at which the open signals of both shutters 10 are transmitted to the constant!it signal transmission time TO. , the period from the quantitative signal transmission time To to the scissetter release signal transmission time T1 is the weighing off time H2, and the spike tratice conveyor 2 is the weighing off time H1.
And the scale continued to be operated without permission from h1-A to time H2.

Note that the weighing cycle H varies for each weighing, but when the weighing cycle start signal is transmitted, the weighing cycle H is
The time from time T3 when the switch is opened/closed to time T3 when the next weighing cycle start signal is sent is always constant.

The fibers dropped onto the feed conveyor 9 from within the scale+a device 7 are transferred to the right in the figure, compressed between the press apron 11 and the feed conveyor 9, and sent to the subsequent process.

Next, the operation and effects of the embodiment having the above configuration will be explained.

C1 In this example, the spike tratice conveyor 2 is operated at high speed before a fixed amount of fiber is fed into the weighing device 7 installed to receive the peeled fiber from the conveyor 2 and drop it intermittently at fixed meter intervals. The operation is switched to low speed, and at the same time a fixed amount of string is fed into the weigher 7, the inlet portion 7b of the weigher 7 is turned off. Then, the spike tratice conveyor 2 is operated without permission to store a predetermined 6 tons of fibers on the shutter 10, and the outlet section 7C of the weigher 7 is opened in order to dump the fibers in the weigher 7. After closing, the shutter 10 is operated to release the inlet 7b of the weigher 7, and the fibers on the shutter 10 are thrown into the weigher 7, and the spike tratice conveyor 2 is restored to high-speed operation. It is configured so that the weighing of 11 miscellaneous items starts from Ii1.

For this reason, even after each weighing is completed, the operation of the spike tratice conveyor 2 is continued to store the w4 miscellaneous in both the V vines 10-F, eliminating the loss time due to the stoppage of the spike tratice conveyor 2, and storing the fibers. The operation can be continued without permission, the time required to weigh the fibers can be shortened, and the ability of the weigher 7 and the hopper feeder F to feed the fibers to subsequent processes can be significantly increased.

In addition, the spike tratice conveyor 2 is connected to the metering tube at time T2.
Since the stripping comb 6'C is grooved to switch from high-speed operation to low-speed operation, the stripping comb 6'C separates the fibers attached to the spike tratice conveyor 2 into thin strips and peels them off, and feeds them into the weigher 7 little by little. This has the effect of suppressing the intermittent feeding of bulk fibers between the time T2 of the metering cylinder and the end time To of borrowing, and thereby improving the weighing accuracy of the weighing device 7.

(Effect of the invention) That is, in order to receive the fibers peeled from the conveyor and intermittently drop the fibers every fixed amount, the conveyor is moved at high speed before the fixed amount of fibers is fed into the 2-placed container. Switching from operation to low-speed operation, a constant h1 v is placed in the weighing device.
At the same time as the aH is fed in, the entrance of the weighing device is closed with a shutter, and the conveyor is operated without permission to store a predetermined amount of fibers on the moeki shitotsuta and the fibers in the weighing device are dropped. After that, the same shutter is operated to open the inlet of the weighing device, and the fibers on the shutter are thrown into the weighing device, and with the conveyor restored to high-speed operation, fiber weighing is started. This configuration has the effect of shortening the time required for weighing 'tpJr, increasing the fiber feeding ability of the weigher, and improving the accuracy of the weighing In of the weigher.

[Brief explanation of the drawing]

FIG. 1 is a side view showing one embodiment of the apparatus used in the present invention, and FIG. 2 is a diagram showing the relationship between the speed of the spike tratice conveyor and the elapsed time of a weighing cycle. 2...Spike lattice conveyor 7...Weigher O1 vessel 10...Shutter

Claims (1)

[Claims] Before a fixed amount of fiber is sent into a weighing machine installed to receive the fibers peeled from the conveyor and intermittently drop the fibers at fixed intervals, the conveyor is switched from high-speed operation to low-speed operation, and the fibers are placed in the weighing machine. At the same time as a fixed amount of fiber is fed, the inlet of the weighing device is closed with a shutter, and the conveyor is operated without permission to store a predetermined amount of fiber on the shutter and the fiber in the weighing device is removed. After dropping, the shutter is operated to open the inlet of the weighing device, the fibers on the shutter are thrown into the weighing device, and the conveyor is restored to high-speed operation, and the weighing of the fibers is started. A method for weighing fibers, characterized in that: