JPS59135324A - Sizing adhesivity detector - Google Patents

Abstract

PURPOSE:To enable the utilization of a sizing adhesivity for monitoring the sizing process and controlling sizing conditions by measuring a level difference of a size and a running length of a yarn during the sizing process to calculate the sizing adhesivity from the formula. CONSTITUTION:A yarn 6 is coated with a size liquid 7 while passing between sizing rolls 9 and 10. A pulse cam 21 detects the rotation of a guide roll 12 to allow a pulse generator 22 to generate pulses in the number proportional to the running speed of the yarn 6. A pulse counter 23 counts the number of pulses to detect the running length l of the yarn 6, which is fed to a computer 5. The level L of the size liquid 7 in a storage tank 17 reduces in proportion to the consumption thereof and a size level detector 20 detects the level diference deltaL and feds a signal corresponding to the consumption to the computer 5. The computer 5 calculates the sizing adhesivity R based on the formula. The unit weight M, the number N Of the yarn and the concentration C of the size liquid are preset.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a yarn sizing technique, and more particularly to an apparatus for automatically detecting the sizing rate of yarn during the sizing process.

The quality of sizing has a significant impact on weaving efficiency and product quality, so it is a particularly important step in weaving preparation. If the size adhesion rate in the sizing process changes, the friction and tension of the threads during weaving will change, and the desizing process after weaving will become uneven.

Conventionally, the size adhesion rate of sized yarn is measured by collecting a sample yarn after the sizing process and drying process, and calculating the weight ratio of the sample yarn in an absolutely dry state and the sample yarn in a completely dry state after de-sizing. It was calculated by measuring.

The collection of sample threads for this measuring method is usually only possible after the end of the entire process, and only after several hours after the desizing and drying steps. For this reason, it is impossible to detect the glue adhesion rate during the gluing process, monitor it during the gluing process, or control the conditions of the glue adhesion process.

Therefore, an object of the present invention is to measure the glue adhesion rate continuously or at an appropriate time during the gluing process, so that it can be used for monitoring the gluing process and controlling the gluing conditions.

Now, the glue adhesion rate R of the yarn is calculated by the following calculation formula for convenience using the weight of adhered glue Ws and the yarn weight Ww.

R=Ws/Ww... (1) Normally, a sizing machine runs hundreds to thousands of threads,
Since they are glued at the same time, the glue consumption within a certain period Q
, the glue temperature C1, the running length l of the yarn, the number N of yarns, and the unit weight M per unit of the yarn, the above calculation formula (1)
can be rewritten as follows.

R= (QxC)/(lXNxM)...-(2)
In a sizing machine, the sizing temperature C of the sizing liquid used, the number N of yarns used, and the unit weight M for one work-in-process product are usually:
constant, and these data are known before the gluing operation. In addition, in the overflow one-way type gluing tank,
Although a certain amount of size liquid is always filled in the size liquid storage tank, the level L of the size liquid decreases in correspondence with the consumption amount Q of the size liquid. Generally, the level L of the size liquid is in a direct proportion to the consumption amount Q of the glue, so the calculation formula (2) can be further rewritten as follows using the level difference ΔL and the coefficient K.

R - ΔLXCXK/ (AXNXM) - (3) As already mentioned, the glue temperature C1 of a work-in-process product, the number of threads M, and the unit weight M are approximately constant and are known before the work, so the glue Glue level difference Δ within a minute period during the attaching process
If [, and the running length l of the yarn are measured, the glue adhesion rate R within that minute period can be calculated from the above calculation formula (3).

Therefore, in the present invention, the information necessary for the above calculation is input continuously or intermittently, and the glue adhesion rate is automatically detected during the gluing process.

EMBODIMENT OF THE INVENTION Hereinafter, the structure of this invention will be concretely demonstrated based on one Example shown in the figure.

First, FIG. 1 shows a glue adhesion rate detection device 1 of the present invention. Broadly speaking, the glue adhesion rate detection device 1 includes a glue consumption amount Q detection device 3, a running length l measurement device 4, and a glue adhesion rate R calculator 5.

The above-mentioned sizing device 2 is a device that continuously applies a sizing liquid 7 to the yarn 6 in a running state as a sizing object. That is, the thread 6 passes through a guide roll 8 and then passes through two sizing rolls 9.10.
The glue roll 10 and the squeezing roll 1 are wound in a staggered manner.
1, passes through a drying process, passes through a guide roll 12, and is continuously wound onto a winding beam 13. The sizing rolls 9 , 10 are in contact with the sizing liquid 7 in the sizing tank 14 , hold the sizing liquid 7 on its surface, and make it adhere to the yarn 6 . Further, the squeezing roll 11 controls the amount of sizing of the thread 6, that is, the sizing rate R, by applying pressure to the sizing roll 10. The sizing tank 14 is of a top-opening type, and has an overflow weir 15 inside, stores the sizing liquid 7 on one side, and stores the sizing liquid 7 by filtering out the sizing liquid 7 after overflowing on the other side. Guide to tank 17. Gluing tank 14 and storage tank 17
and are connected by a supply pipe 18, and a glue pump 19 located in the middle of the pipe constantly feeds the size liquid 7 inside the storage tank 17 to the size tank 14, and keeps the level of the size liquid 7 in the size tank 14. It is always maintained at the height of the overflow weir 15.

The detection device 3 is means for electrically detecting the consumption amount Q of the sizing liquid 7 in the sizing device 2, and is constituted by a sizing level detector 20, for example. That is, this glue level detector 20
is provided in the storage tank 17, and by electrically detecting the level L of the size liquid 7 inside the storage tank 17, it measures the amount of glue consumed Q in the pasting process at each fixed level or at every predetermined time.
Alternatively, the signal is detected continuously and the signal is sent to the computer 5.

The measuring device 4 is a device for detecting the running length l of the yarn 6, and is configured by, for example, combining a pulse cam 21 and a pulse generator 22, and connecting a pulse counter 23 to the pulse generator 22. The pulse cam 21 is mechanically connected to, for example, a guide roll 12, and the pulse generator 22 detects the rotation of the pulse cam 21 in a non-contact manner and sends a pulse signal to a pulse counter 23. Here, the pulse counter 23 counts the pulses, measures the running length β of the yarn 6, and sends this information to the computer 5.
send to.

In addition to the information on the consumption amount Q of the size liquid 7 and the running length β of the yarn 6, the calculator 5 also provides information on the unit weight M of the yarn 6, information on the number N of yarns in the sizing process, and information on the size liquid concentration C. is input, and the glue adhesion rate R is detected at regular intervals from the calculation formula (3). Number of threads N, unit weight M, target adhesion rate R.

and information such as glue concentration C are provided by the yarn weight setting device 2.
4. The values are set by the yarn weight setter 25, the target adhesion rate setter 26, and the glue density setter 27, and are manually entered into the computer 5. Incidentally, since the unit weight M of the yarn is usually displayed as denier, detex, count, etc., the yarn weight setter 25 sends the data of the unit weight M to the calculator 5 by inputting these numbers. This calculator 5 sends the calculation result of the adhesive adhesion rate R to the display device 28 as numerical data. Therefore, the display device 2B displays the adhesive adhesion rate R
Display quantitatively. The calculator 5 is composed of a central processing unit, etc., and calculates the glue adhesion rate R at a certain time, a certain amount of glue consumption, or a certain running length, as well as calculates the amount of glue consumption Q and It also has a function to integrate the running length l of the yarn and calculate the overall glue adhesion rate Rt every 10 feet.

Next, the operation of the glue adhesion rate detection device 10 will be explained.

The size liquid 7 is stored in the storage tank 17 in a required amount at a predetermined concentration, and is fed into the size tank 14 through the supply pipe 18 by the action of the size pump 19. Glue A14
The size liquid 7 inside the storage tank 17 is configured to overcome the overflow weir 15 and circulate through the gutter 16 into the storage tank 17. Therefore, the height of the sizing liquid 7 in the sizing tank 14, that is, the surface level, always matches the height of the overflow weir 15, but the amount of sizing liquid inside the storage tank 17, that is, the level L, is the amount of glue consumed. It will decrease in proportion to Q.

On the other hand, while the thread 6 passes through the guide roll 8, the sizing roll 9.10 and the squeezing roll 11, the sizing roll 9.10
The glue 7 will be applied from the surface. That is, the sizing roll 9.10 has a part of its surface in contact with the sizing liquid 7 of the sizing tank 14, and when rotated in the direction of the arrow, the sizing liquid 7 is
is adhered to the surface and sequentially applied to the thread 6. Further, the squeezing roll 11 applies a constant pressure between it and the corresponding sizing roll 10 to narrow down and control the amount of sizing liquid 7 attached to the yarn 6. In this way, the thread 6 is passed through the drying process while containing the necessary size liquid 7, and then placed on the guide roll 1.
2, and is wound onto the winding beam 13 at a constant speed. The traveling speed of the thread 6 is detected by a pulse generator 22. That is, the pulse cam 21 detects the rotation of the guide roll 12, rotates in accordance with the traveling speed of the thread 6, and generates a number of pulses in the pulse generator 22 in proportion to the speed. Therefore, the pulse counter 23 detects the running length l of the thread 6 by counting the number of pulses, and sends it to the computer 5.

As sizing progresses, the level L of the sizing liquid 7 in the storage tank 17 gradually decreases in proportion to the consumption Q. Therefore, the glue level detector 20 detects the level difference ΔL at regular intervals, and sends it to the computer 5 as an electrical signal corresponding to the consumption amount. Here, the time t, the level difference Δ, and the traveling length β of the thread 6 are used as the fixed interval, but when the time t is used as the reference, the detection accuracy is influenced by the operating speed of the gluing device 2. Furthermore, when the traveling length β is used as a reference, the detection accuracy changes depending on a change in the unit weight M of the yarn 6. However, if the level difference ΔL is used as a reference for the constant interval, the final measurement accuracy of the glue adhesion rate R becomes constant, regardless of the operating speed of the sizing device 2 or the unit weight M of the yarn 6. Also, from the form of the normal storage tank 17, the yarn 6
Since the detection accuracy of the level L of the size liquid 7 is lower than the detection accuracy of the traveling length l of the size liquid 7, it is advantageous in terms of measurement accuracy to detect every time the level difference ΔL of the size liquid 7 changes by a certain amount. .

Now, the calculator 5 calculates the adhesive adhesion rate R based on the calculation formula (3) already described. Here, since the denier number, that is, the unit weight M, the number of threads N, and the size liquid concentration C are set in advance, the calculation is performed using the size consumption amount Q and the running length l as variables. The glue consumption Q is obtained as (previous memory level - current measurement level) - level difference ΔL, and running length β is obtained as (current pulse count value - previous memory pulse count value). . This calculation result is displayed digitally by the display device 28. For example, if the level difference of the glue 7 is detected every 0.5 am, this means that the base area is 2000
- In the storage tank 17, it corresponds to every 11, and when the thread used is 75 denier, the number of threads is 1000, the glue concentration is 8%, and the glue adhesion rate is about 8%, the glue adhesion rate is about every 120 m running length. R will be detected.

The calculator 5 also has a comparison function, and compares the target adhesion rate RO of the target adhesion rate setting device 26 with the glue adhesion rate R of the measurement result, and outputs a signal S proportional to the difference, that is, the deviation, to the control device. Send it to 29. The configuration of this diaphragm control device 29 will be described in detail later.

Further, this calculator 5 generates an alarm signal when the deviation exceeds a certain value, and sends this to the alarm device 30. At the point where this alarm signal is received, the alarm device 30 emits a warning light or sound to warn the worker, and automatically stops the gluing device 2 to automatically correct the abnormal gluing state. to be interrupted.

In addition, in mass production factories or specific factories, one gluing device 2
In many cases, the thread type and number of threads are almost fixed, and the glue concentration of the size liquid 7 does not exceed a certain range. In such a case, data regarding the size liquid concentration C1, number of yarns N, and unit weight M can be input into the calculator 5 as constant values, and these settings and input operations can be performed only at the initial stage. It can also be omitted.

Next, FIG. 2 shows the aperture control device 29 mentioned above. The squeeze roll 11 is rotatably attached to one end of the lever 31. This lever 31 is connected to the shaft 3 in the fixed position.
2, the lower end portion of which is connected by a pin 35 to a cylinder rod 34 of a pressure cylinder 33. This pressure cylinder 33 is fixed to a frame 36 or the like and is connected to a hydraulic or pneumatic pressure source 38 by a pressure transducer, for example a pressure control valve 37. The deviation signal S is sent to the pressure control valve 37 via an amplifier 39.

Now, the pressure control valve 37 changes the pressure of the pressure fluid 40 from the pressure source 38 in proportion to the signal level of the deviation signal S and sends it to the pressure V cylinder 33. So the pressure cylinder
33 controls the amount of advance of the silicate rod 34 in proportion to the deviation signal S, and controls the pressure of the squeezing roll 11 against the gluing roll 10. In this way, the thread 6
In the process of passing between the gluing roll 10 and the squeezing roll 11, the amount of glue adhesion is automatically controlled and automatically corrected to the target glue adhesion rate Ro.

In the above embodiment, the glue consumption amount Q detection device 3 is constituted by the glue level detector 20, but this detection device 3
can also be configured with other detection means. For example, if the size solution 7 of a predetermined concentration is of a type that is automatically replenished into the storage tank 17 in accordance with the amount of glue consumption Q, the detection device 3
may be configured as a flow rate needle for the size liquid 7. Further, the glue concentration setting device 27 detects the concentration of the size liquid 7 in the size applying tank 14,
It may be of a type in which it is automatically input into the computer 5 as an electrical signal.

Furthermore, although the above embodiment calculates the glue adhesion rate R, this glue adhesion rate detection device 1 is also used to detect the squeezing rate of the size liquid 7. That is, the drawing rate is expressed by the following formula for convenience using the weight of the attached size liquid Wd.

D=Wd/Ww (4) The above equation can be further written as below.

D=(ΔLxK)/(ffxNxM)--(5) The above formula (5) corresponds to the calculation formula (3) with the glue concentration C omitted. Therefore, by omitting the glue density setting device 27, the aforesaid drawing rate can be detected. Therefore, when calculating the squeezing rate, if the glue density setting device 27 is omitted and the target adhesion rate setting device 26 is replaced with a target squeezing weight setting device, the squeezing rate can be calculated.

In the present invention, since the glue adhesion rate, which has conventionally been considered difficult, is automatically calculated during the gluing process, the glue adhesion rate can be easily managed and ideal gluing can be achieved.

Furthermore, if an abnormality occurs in the gluing process or other related mechanisms, the glue adhesion rate changes, which makes it possible to detect abnormalities in a short time. In particular, it has been difficult to detect when a broken thread wraps around a glue roll during the gluing process. Cutting of the thread during the attaching process can now be easily detected.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the glue adhesion rate detection device of the present invention, and FIG. 2 is a block diagram of the aperture control device. ■... Glue adhesion rate detection device, 2... Gluing device, 3... Detection device, 4... Measuring device, 5... Calculator, 6... Thread, 7...
- Sizing liquid, 9.10... Sizing roll, 11... Squeezing roll, 17, Storage layer, 20. Glue bell detector, 29...Aperture control device. Figure 7 Procedural formalities (method) % formula % 1. Indication of the case Patent Application No. 010389 of 1988 2. Name of the invention Adhesive adhesion rate detection device 3. Person making the amendment Relationship with the case Patent applicant Address: 5-18-18-4, Nomachi, Kanazawa City, Ishikawa Prefecture, Agent @ 16゜April 6, 1982 (Shipping date 58.04.26)
6. Application and specification to be amended 7. Contents of amendment The # form and specification clearly written in black will be amended as attached.

Claims (1)

[Scope of Claims] +11 A sizing device that continuously applies glue to a running yarn, a detection device that detects the amount of glue consumed by this sizing device as an electrical signal, and A measurement device that constantly detects the length as an electrical signal is input, information on the yarn weight per unit length of the yarn, information on the number of yarns during sizing, and information on the size liquid concentration are input, and the glue adhesion rate is calculated. A glue adhesion rate detection device comprising: a calculator that calculates the glue adhesion rate from a formula. (2) The sizing device has a storage tank that changes the level of the sizing solution in proportion to the amount of glue consumed, and the detection device includes:
The glue adhesion rate detection device according to claim 1, characterized in that it is constituted by a glue level detector provided in the storage tank. (3) The glue adhesion rate detection device according to claim 2, wherein the calculator calculates the glue adhesion rate for each fixed level difference of the glue solution. (4) The computer compares the target glue adhesion rate with the calculated glue adhesion rate and generates a signal proportional to the deviation thereof. The adhesive adhesion rate detection device described in Section 1. (5) Claims 1 and 2, characterized in that the calculator integrates the total running length of the yarn and the total amount of glue consumed, and calculates the average glue adhesion rate for 10 feet from them. , 3rd
The adhesive adhesion rate detection device according to item 1 or 4. (6) When the deviation signal exceeds a certain range, the computer calculates
The adhesive adhesion rate detection device according to claim 1, 2, 3, 4, or 5, which generates an alarm signal.