JPS58145354A - Measuring device for maximum injection speed in die casting - Google Patents

Abstract

PURPOSE:To provide a titled device which can measure an adequate max. injection speed with simple constitution, by constituting the same in such a way that the moving stage of an injection mechanism is detected by a pulse sensor, and the data on the period of the entire pulse detected and stored at prescribed timings is operated and collated in the ending stage of injection. CONSTITUTION:The signal obtained with a pulse sensor 10 disposed in an injection mechanism of a die casting machine is supplied to a detecting circuit 12 for pulse periods. The circuit 12 detects the pulse periods of the pulse signal digitally with a clock generator 20 provided therein. The data on the pulse periods detected with the circuit 12 with time is stored successively with a storage circuit 14 for pulse periods. On the other hand, when an arithmetic circuit 16 judges the starting state of injection from the external signal, the circuit controls the injection speed by storing the data on the pulse periods detected with time from the circuit 12 successively with the circuit 14. When the circuit 16 judges the ending state of injection from the external signal thereafter, the circuit processes the data on the pulse periods stored with the circuit 14 and calculates the max. injection speed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a die-casting machine with a die-casting machine.
This invention relates to a device that automatically adjusts the maximum injection speed when performing injection.

Generally, for the purpose of controlling die casting conditions, injection is performed on the needle side at the highest injection speed in the injection process. Conventionally, ζ
The needle scooping machine with the maximum injection speed of OI is one that is configured to hold the peak of the analog wave shadow related to the injection speed and hold this peak hold value by 1, and one that is configured to set the maximum speed section. The average speed of the lever setting section is 11 * dynamic meter, and the injection difference is
The following method is known, which divides the distance into sections according to -D (W) and calculates the flattened shield at for each section and calculates the maximum island value of 1 m.

That is, in the above-mentioned method of automatically calculating the peak hold value, for example, as shown in No. 1 IIK, in order to hold the peak of the analog #L type of injection speed, there is a possibility that the peak of the surge component vp1 will be held. There is one point where IILt-1 is higher than the maximum speed IVwamx of the soil.

Furthermore, in the method of automatic needle adjustment based on the average Rt of a set interval, it is necessary to set in advance a calculated interval that is the most appropriate, as shown in the J-th hook, for example.

However, there is a point where the measured value of the maximum speed changes significantly when the injection speed characteristics change (indicated by broken koji) and the desired K to L deviations occur.

Furthermore, the injection speed is divided into 1 lancet tl (III) and the average speed of each section is determined, and the maximum value [The automatic needle side method is 1. It will be done. However, lI≠−a, b
4 (as shown, tlLy at the key part of the injection speed
When # is pointed (see $lI46!l) and when it is round (see IN$alik).

Even at the same maximum speed, there is a point where the measured value becomes large - Km.

Therefore, the inventors of the present invention conducted various studies in order to overcome the disadvantages of the conventional Rk injection speed meter @ scissors as described above.
The moving mt-pulse sensor of the injection mechanism detects the pulse period, and from the pulse signal obtained by this pulse sensor, the pulse period is detected at a predetermined mechanism, and this pulse period data is stored in the memory circuit from the start of injection to the end of injection. stored over time.

By calculating the minimum total value of the pulse period from the data stored in the injection end Kll storage circuit and appropriately and easily calculating the maximum injection speed based on the calculation result, the above-mentioned intermittent point can be solved. [Position ratio]

Therefore, one shot @OH target is injection-structure 0 movement state 1Iit-
The pulse (II
No. pJ5Frji! By memorizing the pulse cycle data detected during O-tie construction and calculating and comparing the stored pulse period data at the time of firing, it is possible to calculate the appropriate maximum injection speed with a simple *g. The highest injection speed in die casting that can be achieved is in the needle #I machine.

In order to achieve the above purpose, in this project 1jlI,
a pulse sensor that detects the movement state of the injection mechanism;
A pulse period detection circuit that detects a pulse period at a predetermined timing from a pulse signal of a pulse sensor; and a memory circuit that stores pulse period data over time from the start of injection to the end of injection obtained by the pulse period detection circuit; Note tll
The minimum accounting value of the pulse period for each predetermined number of pulses is calculated from all the stored pulse period data, and the maximum injection rate is calculated from the ratio calculation result. It is characterized by consisting of a display area and a display area.

In the above 01IItlIa injection a& measurement, the pulse 2 period detection path has a false clock pulse inside.
It is preferable to configure the device to detect the entire pulse period of the pulse signal supplied from the pulse sensor in accordance with the timing.

Ninth, the arithmetic circuit performs a sequential ratio soft operation on the total value t of pulse periods for each predetermined number of pulses from all the pulse period data stored in the memory N path, and stores it in the memory, *Finally, the memory The elephant high injection series IIL is stored in the ratio calculation result.
It is preferable to perform the t-calculation and display it on the display screen.

Next, regarding the embodiment of the maximum injection speed needle ## wrinkled according to 9 of the present invention, the following will be described with reference to the drawings with #&. I will clarify.

Figure 81 is a block circuit showing one embodiment of the present invention's injection device, that is, ThM. Pulse sensing by generated clock
A pulse period detection circuit/K that detects the pulse period of the pulse signal detected by f10, and a pulse period detection circuit/JK
A pulse Ji that stores the detected pulse period data
a d-period memory circuit l-, an operation circuit il/j stored in the pulse period memory circuit l-, and which calculates the highest continuous layer from nine degrees;
Performance 3! It is composed of a display circuit /1 that displays i & injection speed f calculated by circuit /4.

Therefore, in the present invention, high-speed injection 31! Total wrinkles 1i
ft--Proceed as follows.

On the injection machine 11 of the die-casting machine, N, t is the fourth
As shown in the figure, a pulse sensor 10t is provided to send out a pulse output tube in conjunction with the injection operation.

As shown in FIG.
The supplied pulse signal is supplied to the pulse period detection circuit/J. This clock generator has an internal clock generation function of 20t, and the pulse period of the pulse signal generated per unit time by the generated clock. To detect.

In this way, the pulse period data detected over time by the pulse period detection path I is sequentially stored in the pulse period storage circuit I#. On the other hand, the calculation (b) circuit 16 has a function of controlling each of the pulse period detection circuit /J, pulse period recording circuit /#, and display circuit /It-, and has a control function I41 for controlling the circuits. An arbitrary external cursor is supplied for the rounding that occurs.

However, performance! Times! A4: When the injection start state m is determined by the external signal, the pulse period detection circuit IJ
The pulse cycle data detected over time is sequentially stored in the pulse cycle storage (2) path l-. After that, when the injection completion status is determined by the calculation circuit /4fi and the external signal, the pulse period memory Il path is stored and the 9 pulse period data is calculated as 1st order O! Calculate p maximum injection speed WLt by &. In addition, for convenience of explanation.

In the 1tlE pulse period memory m1ll/3, the memory of all pulse period data stored in detail is 7 hours)
If you show 1, it will be lit@PC.

(2) First, the total pulse period value of pulse period data for - pieces from the start is calculated, and the result of this OII calculation is stored in the memory card λ provided in the calculation Kushiro 14, for example.

■ From the next Ks The calculation result is now in the pigeon house @1)
The calculation results can be compared to the memory JJK.

@ Perform the same calculation as the above 0 term on the earned and dead money data area i at the time of injection.

(2) Therefore, the data finally stored in the memory Jλ is the minimum total value of l pulse periods. Then, from this data, p is calculated by the following formula, p maximum injection distance Ijtt.
Automatic needle - can be done.

V (m/5) -=- Total period However, n t all/pulse (pulse period) m8
With the number of pulses K in this way, calculate j by path/4! The high-speed injection speed mIfi can be easily displayed using the display circuit/I.

As is clear from the embodiments described above, the needle #j device of the present invention is capable of controlling the operation of the injection mechanism in the injection process from the injection start point to the injection start point. The period data is stored over time, and the minimum sum Il of the pulse periods of a predetermined number of pulses is calculated from all the stored pulse period data at the end of injection, and the maximum injection speed t-' is calculated from the calculation result. This is slowed down by automatically calculating p through calculation.

Therefore, according to the measuring device of the present invention, maximum speed detection can always be carried out appropriately and accurately, and it is possible to achieve the highest glaze degree of single-motion needles with continuous injection.

Furthermore, the measuring device of the present invention has a memory function, a calculation function, and *tn
Equipped with mt Noh! 11. It is easy to use and can be used, and it also prevents misalignment due to changes in injection transient time, as in the past. 11.
It is possible to improve the performance of the device and improve the 91m performance.

The above is a good example of this IA@! Akashitaga 1
Without departing from the spirit of the present invention, the design of the woodcutter f
Of course, it can be done without f1lt.

[Brief explanation of the drawing]

絽L- is a diagram showing an example of a conventional maximum injection speed meter*device, and diagram sJ is a conventional maximum injection speed meter side device
MJ (D * @ Explanatory drawing showing the procedure, IIJkA is the conventional maximum injection speed needle side device O and another measuring hand 1st - Hat off 1 reference riahsb Hiro Figure 3 shows needle side hand m1lK erroneous needle go occurs Theory shown by comparing cases $1 &l
h jg 'The figure is a block circuit #114WAtimz showing an example of the maximum injection speed meter Aya@Wrinkle according to the present invention.
Figure 7 shows the pulse sensor om* arrangement shown in the garden. Figure 7 shows the pulses generated by the pulse sensor shown in Figure 4.
- indicates the pulse periodicity t1 of this jealousy needle plow vehicle wrinkles.
- FIG. 7 is a memory 7-ormat diagram of data stored in a path. /l...Display circuit Jo...Clock generator Jco...Memory FIG, I FIG, 2 FIG, 3 FIG, 4' a, b. FIG, 5 1G, 6 1G, 7 1G, 8

Claims (1)

[Claims] (17 It output ** 0 pulse sensor for detecting the movement state; pulse cycle detection circuit for detecting the pulse cycle from the pulse sensor 10 pulse signal by the tie setting of j!; and the pulse cycle detection circuit) - A memory circuit that temporarily stores the pulse cycle data tm from the start of injection to the end of injection obtained in the process, and the minimum gold wire value of the pulse cycle for each predetermined number of pulses from all the pulse cycle data stored in the memory circuit. Maximum injection speed needle 1Ill@position for die casting characterized by comprising an operation ajll for calculating the maximum injection speed from the ratio calculation result obtained by the calculation, and a display circuit for displaying the nine highest injection speed calculated by the calculation circuit. (2) Claim lI Item 1 @O Maximum injection speed needle #
At l1jW&, the pulse detection path is. A maximum injection speed direct metering device for die casting, which is equipped with an internal clock generator and detects the entire pulse period of the pulse region supplied from a pulse sensor in accordance with the timing of the clock. (3) Patent Claims IN Clause 0 Maximum In the injection molding needle #ll device, the calculation path is the minimum sum of pulse periods for each predetermined number of pulses from all the pulse period data stored in the storage circuit. While performing the Kenji Hiei operation, the me%
9 and finally stored in a memo IJK, calculates the maximum injection speed from the ratio calculation result and displays it on a display circuit.