JPS58215514A - Weight measuring method of cotton-like material - Google Patents

Abstract

PURPOSE:To enable the two-stage measurement of a cotton-like material and to improve the accuracy of measurement by measuring roughly the coarse cotten- like material, which is fed continuously from a constant speed feeder, by large feeding then measuring the same precisely by small feeding by operating a belt feeder in the two stages; high speed and low speed. CONSTITUTION:When the inside of a measuring machine 6 is first empty, a door 5 for a storage hopper is held open and a door 16 for the measuring machine is held closed. A belt feeder 3 is kept operated at a high speed to act so that the crushed cotton-like material Xa contg. partly the part of a high layer thickness is supplied at a high speed (large feeding). The large feeding is continued until the machine 6 measures 90%, and when the machine 6 measures 90%, a partial measuring switch detecting the same operates and the feeder 3 is changed over from the high speed to low speed operation by the signal thereof, whereafter the material Xa of a low layer thickness laminated on the belt 31 during the high speed operation of the feeder 3 is supplied at a low speed (small feeding) and is measured precisely.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for weighing fluff made of various fibers such as natural fibers or chemical fibers, and more specifically, in the first half of the weighing process. Roughly weigh by adding a large amount, and after the rough weighing is completed (for example, 0%
This invention relates to a method for weighing fluff that employs a two-step weighing method that enables precise weighing by adding a small amount after weighing.

BACKGROUND OF THE INVENTION Conventionally, a weighing method has been known in which a device such as the one shown in FIG. 1 is used to perform two-stage weighing of powder or granules: coarse weighing and precise weighing. That is, the weighing device shown in FIG. 1 is a belt feeder! The outlet 3-26 of the tank lid 2 containing powder or granules is arranged at the upper part of the inlet 3a of 3 with a minute interval T, and when the belt feeder j3 runs, the outlet 3-26 of the tank lid 2 containing powder or granules is placed at a constant distance on the belt of the belt feeder J'' Layer thickness (approximately the same as the distance T between the tank outlet 32G and the belt top surface)
The structure is such that powder or granules can be taken out continuously. In this device, the belt feeder 3 can be adjusted in speed between high-speed operation and low-speed operation.
Regardless of whether the belt feeder j3 is driven at high speed or low speed, the powder or granules mainly taken out from the belt always have a layer thickness of a constant height. And during rough weighing (0 to approx. 0%)
Belt feeder for weighing)! 3 is operated at high speed to input a large amount of powder or granules, and when the measuring unit B finishes rough weighing, the belt feeder 53 is switched to low speed operation to perform precision measurement by small input.

However, although the weighing device shown in Fig. 1 can be used when the object to be measured is powder or granules, it cannot be used when the object to be measured is a flocculent material made of various wAa. It is impossible to use this conventional powder or granule metering device for weighing flocculent materials because the material gets clogged in the tank exit rotorac section a.

However, the feeding and weighing of flocculent material had to be done manually, and the working environment was poor and complicated, and work efficiency was low.

In view of the above-mentioned problems, an object of the present invention is to propose a method for weighing flocculent materials that can automatically weigh flocculent materials by two-step loading of a large amount and a small amount. The uninvented method for weighing flocculent materials consists of a constant speed feeder with an IF-shape so as to continuously transfer floccule materials made of appropriate fibers at a constant speed; The speed can be adjusted between high-speed operation and low-speed operation, so that the layer thickness of the shredded fluff to be transported can be reduced during high-speed operation, and the layer thickness of the shredded fluff-like material can be increased during low-speed operation. The belt 7, which has a suitable corroding structure, is disposed at an appropriate position upstream of the inlet of the belt feeder in the flow direction, and has the function of shredding the coarse cotton-like material into the shredded cotton-like material □ a fluff-like material feeding device comprising a fluff-shredding receptacle for cutting the fluff-like material and a hopper for guiding the shredded fluff-like material discharged from the outlet of the belt feeder downward; and a lower part of the door for the storage hopper. In the first half of the weighing process, the above-mentioned hopper equipment is opened and the above-mentioned By operating the belt feeder at high speed with the layer for the weighing machine closed, a large amount of shredded cotton material is thrown into the weighing machine and roughly weighed, and when the weighing machine finishes the rough weighing, the belt feeder is turned off. Switching from high-speed operation to low-speed operation, feeding relatively small amounts of the nine-layer thin cut cotton material stacked on the belt feeder during the high-speed operation into the machine for precision weighing;
Subsequently, when the weighing machine has weighed 100%, the storage hopper equipment is closed, and the layer for the weighing machine is opened: the shredded cotton material weighed by the weighing machine is discharged from the weighing machine, and further shredded cotton is discharged. After discharging the weighing device, the weighing device layer is closed and the storage hopper device is opened, so that the storage hopper equipment and the weighing device layer are controlled to open and close, and the belt feeder is returned to the speed drive; Therefore, even for bag-like materials, we have made it possible to automatically weigh cotton-like materials with high precision by automatically adding two stages of large and small amounts. This is a characteristic feature.

The method for weighing flocs of the present invention will be explained below based on the illustrated example of an actual basket. In the illustrated embodiment, the flocs supplying and measuring device 1 as shown in FIG. 2 is used.

The floc feeding and measuring device shown in Fig. 2 consists of a belt conveyor-type constant speed feeder capable of transporting 11 coarse flocs X that have not been sufficiently loosened at a constant speed, and a constant speed feeder. A flocculent material shredding machine≠ is installed at the outlet 2b of the flocculent material Xi and acts to loosen the coarse flocculent material Xi into shredded flocculent materials Xα, and the flocculent material shredding machine≠
A belt feeder 3 connected to an outlet ≠ b and capable of adjusting its speed in two stages of high-speed operation and low-speed operation, and a flocculent material supply having a storage hopper disposed at an outlet 3b of the belt feeder 3. It has a device/and even a storage hopper!
A weighing machine 6 is disposed below.

In this embodiment, the constant speed feeder 2 continuously transports 41X coarse cotton, obtained by cutting old clothes and old cloth into fibers from which solid objects such as buttons and zippers have been removed, to the rear. It is for.

The break @≠ is interposed between the outlet 2b of the constant speed feeder 2 and the inlet 3α of the belt feeder 30, and is a constant speed feeder! The function is to shred the coarse cotton-like material X transported by the machine into small pieces to form shredded cotton-like material XcL. This shaza-saki≠ is constructed by disposing a rotating body 'A3' which is made up of a large number of blades 4/-≠, 4'4', etc. attached to the outside in a casing 4'/, and the rotating body l1- By rotating the 3't-motor≠2 (for example, 5OOrpth), the coarse cotton material X that exceeds the inside of the casing can be cut into small pieces. Note that in this actual example, the shredder ≠ is interposed between the constant speed feeder 2b and the belt feeder inlet 3α, but in other embodiments, the shredder ≠ is installed at the inlet of the constant speed feeder λ. On the constant speed feeder 2, there is already cut cotton-like material
Alternatively, a may be supplied.

The belt feeder 3 has a long length in the flow direction. Further, the belt feeder 3 is capable of performing two-stage operation of high-speed operation and low-speed operation. That is, the speed of the belt feeder 3 can be adjusted in two stages by switching the motor 32 between two stages of high-speed rotation and low-speed rotation, or by using an appropriate transmission. Also, when the belt feeder 3 operates at high speed, the leakage-free belt 3/
runs at high speed, the shredded cotton material Xa in the form of small pieces is laminated with a low layer thickness on the belt 3/, which is continuously discharged in a substantially constant amount from the outlet II-b of the shredding machine≠. On the other hand, when the belt feeder 3 operates at low speed, the belt 3
Since / travels at a low speed, it is laminated on belt 3/ with a relatively high layer thickness. When the operating speed of the belt feeder 3 is switched to two stages in this way, the belt feeder 3 operates at high speed during rough weighing in the first half of the weighing process to transfer the cut cotton-like material Xα from the belt feeder outlet 3b to the storage hopper. After the rough measurement is completed, the speed is changed to low speed and a small amount of the shredded cotton material XeL is introduced (the cotton material XtL with a low layer thickness is introduced at a low speed).

The reservoir has an appropriate length in the vertical direction,
It acts to guide the shredded cotton-like material Xα that is continuously fed from the outlet of the belt feeder 3 to the weighing machine 6 side, and also to guide the shredded cotton-like material Xc while the weighing @B is not ready for weighing.
It functions to temporarily store L.

There is a measurement inside this reservoir hopper! It is possible to store up to 5% of the weight weighed in B, but if some trouble occurs (for example, if the bagging machine 7 of Mugisho is unable to prepare for receiving), the storage hopper will be removed. When the amount of cut cotton-like material Xa equal to 0% of the weighed weight is stored in the feeder, the constant speed feeder and belt feeder 3 can be stopped by the signal.

The lower part (bottom) Sa of this reservoir hopper j has a door that can be opened and closed freely. ,/evening is provided, and the door/3. /During the evening, the shredded flocculent material XeL discharged from the belt feeder outlet 3b is collected and directly weighed by passing through the hopperta.
I'll guide you to the door again. ; , / When the door is closed, the shredded fluff Xα discharged from the belt feeder outlet 3b can be temporarily stored in the storage hopper j. In addition, the storage hopper layer/
j.

/3 is air cylinder 2! , 23, and this storage hopper layer /j, /
In the evening, there is a layer for the weighing machine which will be described later/! ; , /4 open and close almost synchronously and in opposite directions.

Weighing@B is the cut cotton-like material
This is for weighing and taking out one foot of α at a time. In addition, the shredded cotton-like material XeLJr weighed in fixed amounts at measurement@
The products are sequentially discharged into a bagging machine 7 placed below the i-weighing unit 6 and packed into bags.

Air cylinders 2 and 2 are installed at the bottom (bottom) of the measuring mechanism.
There is a door /6°/6 that can be opened and closed by B. The weighing machine layer /≦, /B is closed during weighing (while the storage hopper layer /3./! is open), and after the weighing mechanism has completed 100% weighing (the storage hopper layer /3./! is open).
3;, after /3 is closed).

The weighing mechanism also includes a detection switch (hereinafter referred to as a partial weighing switch) that detects when the weighing mechanism has weighed up to a predetermined ratio (0% in this embodiment), and a detection switch (hereinafter referred to as a partial weighing switch) that detects when the weighing mechanism has weighed up to a predetermined ratio (0% in this embodiment). A detection switch (hereinafter referred to as a 100% detection switch) is provided for detecting when the weight is measured.

The belt feeder 3 is operated at high speed while weighing @B weighs up to 70%, and the belt feeder 3 is operated at high speed while weighing
! When the weighing reaches 0%, the partial weighing switch is activated and the signal is used to switch the belt feeder 3 to low speed operation.

When the weighing mechanism completes 100% measurement, the 100% detection switch is activated to extend the air cylinders 2 and 23 on the sump hopper layer m/3; , /3 is coded /j.

It acts as shown by /j'.

Next, a method for measuring flocculent material using the flocculent material supplying and measuring device having the above-mentioned structure will be explained.

Belt feeder 3 of the fluff supply and metering device shown in FIG.
As shown in Fig. 3, the storage hopper layer/J and the weighing machine layer/B each operate at high or low speed (belt feeder 3) or open/close (
Each door / j, / otsu) is designed to do so. Note that the constant speed feeder 2 is always operated at a constant speed, and the coarse cotton material Then, the material is cut into small pieces of cut cotton-like material XeL. Furthermore, from the outlet 4th of the shredding-≠, a nearly constant amount of shredded cotton-like material Xa is discharged in the form of small pieces, but the shredded cotton-like material The thickness of the XaO layer of the cut cotton material becomes low when the belt feeder 3 operates at high speed, and increases when the belt feeder 3 operates at low speed.

First, when the weighing machine is empty, use the storage hopper layer/
j is open and the weighing machine layer/6 is closed, and the belt feeder 3 is operated at high speed to feed the shredded cotton material Xa containing some thick layer parts at high speed as will be described later. It acts to supply (large input). Then, the large amount of input is continued until the weighing machine 6 weighs 90%, and when the weighing force reaches 0%, the partial weighing switch that detects this is activated and the belt feeder 3 is switched from high speed to low speed operation based on the signal. , After that, when the belt feeder 3 operates at high speed, the cut cotton-like material with a low layer thickness layered on the belt 3/X5g
It works by supplying (small amount) at a low speed for precise measurement. Then, when weighing-6 completes 100% weighing,
The 100% detection switch detects this and first closes the storage hopper door/J to stop feeding the flocculent into B until weighing. Immediately after that, open the weighing machine layer/B and move the inside of the weighing machine O. The cut cotton-like material Xα weighed to a certain amount is discharged into the bagging machine 7. The bagging machine 7 presses and packages the shredded cotton-like material Xα discharged from the weighing machine B. Note that even after the storage hopper article/j is closed, the shredded cotton material XIB is continuously supplied from the outlet 3b of the belt feeder 3. They are temporarily stored in the storage hopper j until the next opening.However, if some trouble occurs (for example, if the bagging machine 7 is not ready for receiving), the storage in the storage hopper When the amount of shredded cotton material Xα exceeding the storage allowable amount (weighing weight 0%) is stored, the constant speed feeder and belt feeder 3 are stopped by the signal. After the completion of the operation (after the storage hopper is closed), high-speed operation is resumed as soon as possible at an appropriate time.

When the shredded cotton material Xα in the weighing machine 6 is discharged, the weighing machine layer /l is closed, and immediately after that, the storage hopper supplies /! r
is opened and the next weighing operation begins.0 When the belt feeder 3 operates at low speed, the amount of shredded flocculent material XcL discharged from the belt feeder outlet 3b is small, but the shredded flocculent material XcL is released from the shredded exit ≠6. Since the shredded cotton-like material (a) is fed in a constant amount, the layer thickness of the shredded cotton-like material Xg increases on the inlet 3α side of the belt feeder 3, and the shredded cotton-like material ) (a is released from the belt feeder outlet 3b when a large amount is added during the next weighing operation, so that even if a two-stage feeding method is adopted, the overall weighing speed will not decrease. There is.

Figures ≠ and 5 are detailed views of the shredding machine used in the fluff supply device shown in Fig. 2. In this shredding machine, the rotating body Cutlery that can be installed ≠≠, ≠
≠... are provided in r pieces at equal intervals in the circumferential direction, and in a large number at appropriate intervals in the axial direction of the rotating body 4'30. Also, each blade≠≠ means that the cutting edge≠11. It is formed so that the g side is slightly inclined toward the rear side in the rotational direction of the rotating body, and when cutting a flocculent material, the flocculent X is attached to the cutting edge 4I-≠α
Even if a small piece of , Xα gets caught, it will naturally slide outward.

Further, on the exit side of the rotary body≠3 on both side plates of the shredding machine casing, a large number of fixed blades≠A, 1A4, etc. are arranged at predetermined intervals toward the center of the rotary body IA3@. Each of these fixed blades ≠ Otsu, 4L Otsu... is the both side walls of casing 4L/l-/l! , 4/-/a is fixed to the fixed bar 4 installed between the two. Also, each fixed blade≠6. ≠6・
・ is each rotary knife≠≠ so that its tip *@ overlaps with the tip side of the rotary knife≠≠ in an appropriate range when the rotary knife≠Hirro rotates.

≠≠... They are arranged so as to be inserted into the axial intervals formed between them, and the rotary cutter ll-≠
The coarse or shredded flocculent (X or Xα) that is caught on the rotary cutter and is about to be rotated is removed, thereby preventing the floccule that is caught on the rotary cutter from growing. Note that the cutting edge side (lower surface side) ≠ 6G of each fixed cutter≠Otsu, Hirotsu, etc. is inclined toward the front side in the rotation direction of the rotating body 11-3, and the fixed cutter≠Otsu is hooked on the fixed cutter≠B. Shredded cotton-like material X,
This allows the tL to come off smoothly.

An air guide ≠7 is formed on the inner surface of the shredding machine casing≠/ and at a position above the rotating body≠3, spanning almost the entire length between the casing side plates≠/”vttia.This air guide≠7 is , is arranged so that its lower surface is close to the rotation locus circle of the tip of each rotary blade≠≠, so that the wind generated by the rotation of the rotating body≠3 does not blow out to the exit lA/α side of the casing≠/ It works like this.

Next, the present invention will be explained in detail. The cotton 5-like material measuring method of the present invention has the following effects.

(1) By operating the belt feeder 3 in two stages at high speed and low speed for the coarse cotton material that is continuously transferred from the constant speed feeder, it is possible to do rough weighing by large inputs and then precise weighing by small inputs. Therefore, even fluff-like materials can be weighed in two stages, and the weighing accuracy can be improved.

(2) Even if the configuration is such that the cotton-like material can be weighed in two stages, even while the belt feeder 3 is operating at low speed, the shredded cotton-like material Since the shredded cotton material X (I) is fed in a fixed amount at a time so that the shredded cotton material X (I) can be stacked at a layer height, the shredded cotton material Therefore, the overall metering speed does not decrease.

(3) Since the fluffy material supplied to the belt feeder 3 has already been shredded into small pieces by the shredding machine ≠ installed on the side above the inlet 3g of the belt feeder 30, it is cut on the side below the belt feeder 3. The cut cotton-like material does not get clogged in the process, and even if the object to be weighed is a cotton-like material, smooth measurement can be performed.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of the conventional weighing method for powder or granules, Figure 2
The figure is a schematic diagram of an example of a flocculent material supplying and measuring device used in the flocculent material measuring method of the present invention, and FIG. 3 is an explanatory diagram showing the working order of each member of the flocculent material supplying and measuring device of FIG. Figures ≠ and 5 are a cross-sectional view and a partially cutaway plan view, respectively, of the shredding machine employed in the feeding device of Figure 2. / ..... Cotton supply device 2 ..... Constant speed feeder 2b ..... Constant speed feeder outlet 3 ..... Belt feeder 3a ..... Belt feeder inlet 3 b..・・・
・Belt feeder outlet ≠ ...Creating machine j ...Sump hopper 5G ...Sump hopper lower part 6 ...Weighing machine 6α ...Weighing lower part /j ・...Reservoir hopper supplies/6 ....Layer for weighing machine X ....Large cotton material Ko゛. Agent: Hiroshi Ohama, patent attorney.

Claims (1)

[Claims] 1. A constant speed feeder (2) capable of continuously transporting a fluffy material made of appropriate fibers at a constant speed; The speed can be adjusted, so that the layer thickness of the shredded fluff (Xa) to be transported can be reduced during high-speed operation, and the layer thickness of the shredded fluff (Xa) can be increased during low-speed operation. A belt feeder (3) having an appropriate length, and the belt feeder (
3) a floc-like material shredding machine which is disposed at an appropriate position upstream of the inlet (3α) in the flow direction and acts to shred the coarse floc-like material (X) into the shredded striped material (Xa); (≠) and the door (/
a fluff supplying device (1) comprising a reservoir hopper whose outlet (jα) is opened and closed by j) and which temporarily stores the shredded fluff <Xa>; A flocculent material supply metering system consisting of a weighing machine (6) which is located below the door (/Y) for the hopper Cj> and is equipped with a door (/B) that can be opened and closed at its lower part (≦a). In the first half of the weighing process, the belt feeder (3) is operated at high speed with the storage hopper layer (15) open and the weighing machine door (/B) closed. A large amount of shredded cotton material (Xa) is put into the weighing machine (B) and roughly weighed, and when the 1m (B) has finished rough weighing, the belt feeder (3) is switched from high-speed operation to low-speed operation. Then, into the weighing machine (6), relatively small amounts of the thinly cut striped material (Xt&'), which is stacked on the belt feeder (3) and has nine layers of thickness during the high-speed operation, are fed for precision weighing. Then, when the weighing machine (6) weighs 100%, the storage hopper layer (/j) is closed, the weighing machine door (/otsu) is opened, and the shredded cotton weighed by the weighing machine (otsu) is (X
g) is discharged out of the weighing machine (B), and the shredded cotton-like material (X
After discharging a), close the weighing machine layer (/B) and open the sump hopper supplies (/j) so that the weighing machine layer (/6) is closed and the weighing machine layer (/6) is opened. A fluffy material weighing method characterized in that the belt feeder (3) is controlled to open and close and is further returned to high-speed driving at an appropriate time after 100% weighing by a weighing machine (B).