JPS63230529A - Valve block device for glassware molding machine - Google Patents

Abstract

PURPOSE:To simplify constitution and to reduce troubles, by setting a solenoid valve on the top of a blocklike base having plural pipeline holes and enabling air change to air charge and exhaust channels to each mechanism. CONSTITUTION:A valve block device for molding glassware consists of a solenoid valve 21 operated by control signal sent from an electric control device 26, a base 20 equipped with the valve and a velocity control valve 32. The base 20 has a pilot air channel 27 to be communicated with each control boat of the valve 21, a main air channel 28, exhaust channels 29 and 29b and air charge and exhaust channels 30 and 30b to mechanism for molding mechanism drive. The control valve 32 is connected to the air charge and exhaust channels 30 and 30b at the outside of the base 20.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Application of the Invention) The present invention relates to a glassware molding machine, and particularly to a valve block device for driving each mechanism of the molding machine.

(Prior art and its problems) Generally, in a glassware forming machine, after receiving a gob of molten glass, glassware is formed using multiple forming mechanisms such as a rough die and a finishing die. An air cylinder is used as a driving device, and there are two types of valve operating devices, mechanical and electrical, for supplying and discharging operating air to the air cylinder.

That is, FIG. 2 is a diagram showing the above-mentioned mechanical valve operating device, in which a plurality of adjustable buttons 2 are provided on the outer periphery of a cylindrical timing drum 1 that rotates mechanically. The drive of the air cylinder is controlled by sequentially pushing up or down an air switching valve 3 communicating with the air cylinder via a valve push-up lever 4 or the like.

In this case, each air switching valve 3 is housed in one valve block 6 together with the speed control valve 5 etc. due to the relationship with the timing drum and the space limitation to accommodate six valves. .

Incidentally, in recent years, an electrical control method that is an improvement on the method described in 1- is becoming popular. This changes the operation timing of the molding machine number mechanism when changing product type or size.
By omitting the timing drum button adjustment work, dangerous work in narrow spaces is reduced, and at the same time, the molding machine time required for changing products is reduced, increasing the operating time, and the H between products is reduced. It has a number of features, such as storing the work timing via a storage device to perform the optimal work timing quickly and online, and standardizing the work, and has been effective.

FIG. 3 is a diagram showing the configuration of a valve device using the electrical control method described in 1. It is comprised of a plurality of electromagnetic switching control valves 12 provided correspondingly to the main switching valves 12, main switching valves 13 respectively connected to the electromagnetic switching control valves 12, and a speed control valve 16 consisting of a speed control needle bubble 14 and a check valve 15. The plurality of electromagnetic switching control valves 12 are used as pilot valves, and the main switching valve 13, speed control valve 16, etc. connected thereto are all incorporated into a manifold constituting a fluid pipeline, so that the size is compact. It is intended to be used as a valve block attached to a molding machine. .

When the electric signal sent from the electrical control device 11 according to the operation timing determined by the product is sent to the electromagnetic switching control valve 12 to operate it, pilot air is supplied to the main switching valve 13, and the main switching valve 13 is supplied with pilot air. Switching valve 1
Activate 3. Therefore, main air is guided from the main air passage 17 through the main switching valve 13 and the speed control valve 16 to the air cylinders, etc. in each mechanism of the molding process in the molding machine, or from the air cylinder to the speed control valve. 16, main air passes through main switching valve 13, etc. to exhaust passage 18
The air cylinders are sequentially driven according to the operation timing to perform the molding operation.

In this way, by concentrating the six valves in the manifold as a valve block, when each valve breaks down, the entire valve block can be removed from the molding machine and replaced, thereby reducing the total time required for the molding machine as much as possible. It is.

However, such valve blocks generally have a complex structure and are compact in size, so they use small and precise electromagnetic switching valves, and the main switching valve and the manifold pipes connected to it are The passageway is complex and susceptible to foreign matter contamination in the fluid, viscosity of lubricating oil, etc. Maintenance is also not easy in the event of a breakdown, and the manifold has to be specially processed to incorporate the main switching valve. There are problems such as the need for

In view of these points, the present invention makes use of the features of the electrical control method described above, simplifies the configuration of the ascending order and conduits, etc. within the valve block, and is suitable for compact and narrow spaces, and allows for easy control of each valve block. A valve block for a glassware molding machine that has a single exchange port, allows the use of commercially available valves, and has a simple manifold structure that reduces failures and improves productivity. The purpose is to obtain purchase.

[Structure of the invention]

(Means for Solving the Problems) The present invention is a glassware forming machine that receives a molten glass gob (gob) and then forms the gob into a glassware using a plurality of forming mechanisms such as a rough die and a finishing die. In a valve block device for use, a solenoid valve is actuated by a control signal sent from an electric control device, and the solenoid valve is installed on one side, and a pilot air passage and a main air passage are connected to each control port of the solenoid valve. A base that provides an air passage, an exhaust passage, and an air supply/discharge passage to the forming mechanism driving mechanism, and a speed control valve connected to the two air supply/discharge passages on the outside of the base. This is a characteristic feature.

(Example) Hereinafter, an example of the present invention will be described with reference to FIG.

In FIG. 1, the reference numeral 20 has a plurality of pipe holes inside -q
The solenoid valve body 21 is mounted on the upper surface of the base 20. A central control port 21a is formed in the contact surface of the solenoid valve body 21 with the base 20, and first and second control ports 21b and 21c are formed on the left and right sides of the central control port 21a, respectively. , and further the left side of the first control port 21b and the second control port 21c.
The third and fourth control ports 21 are located on the right side of the
ds21e is drilled. In addition, a spool 22 for opening and closing each control port is disposed inside the solenoid valve body 21 so as to be movable left and right, and the spool 22 is urged leftward by a spring 23 in the figure. . Furthermore, a pilot valve is provided at the left end of the solenoid valve body 21 described in 1.1- above, which is operated by the electromagnetic force of the electromagnetic coil 24 and supplies and discharges pilot air to the spool chamber 22a formed on the left side of the spool 22. 25 is attached.

That is, within the pilot valve 25 is a pilot valve body 25 that is moved left and right by the electromagnetic coil 24 to open and close the opening 25a of the pilot air hole 21f formed in the solenoid valve body 21 and the pilot air outlet 25b.
A valve chamber 25d of the pilot valve 25 communicates with the spool chamber 22a through a communication hole 25e.

I'm being forced to do it.

On the other hand, the electromagnetic coil 24 is controlled to turn on and off by a control signal from an electrical control device 26.

Further, in the base 20, a pilot air passage 27 is provided.
, main air passage 28, and exhaust passage 29a.

29b, and a mechanism for driving the forming mechanism (not shown)
The central control port 21g of the solenoid valve body 21 is communicated with the main air passage 28, and the first and second control ports 21b.

21C are communicated with the air supply/discharge passages 30a and 30b, respectively, third and fourth control ports 21d and 21e are communicated with the exhaust passages 29a and 29b, and a pilot air hole 21f is communicated with the pilot air passage 27. I'm being forced to do it.

Furthermore, an air supply/discharge passage 30 formed in the base 20
A speed regulating valve 32 is connected to each of a and 30b via a pipe joint 31, and the speed regulating valve 32 is connected via a conduit 33 to a mechanism for driving the forming mechanism, such as a corresponding air cylinder.

When the electromagnetic coil 24 is turned on by an electric signal sent from the electrical control device 26 according to the operation timing determined by the product, the pilot valve body 25c is moved to the left by the electromagnetic force, and the pilot air hole 21f is opened. It is opened, and pilot air flows into the valve chamber 2'5d from the pilot air passage 27, and further into the spool chamber 22a through the communication hole 25e. Therefore, the spool 22 is moved to the right, the central control port 21a is communicated with the first control port 21b, and the main air is introduced into the air supply/discharge passage 30a, passes through the speed 2i moderation valve 32, and is sent to the predetermined molding mechanism driving mechanism. In other words, the air is supplied to one cylinder chamber of the air cylinder. on the other hand,
The other air supply/discharge passage 30b is a second control port) 21c.
, is communicated with the exhaust passage 29b via the fourth control port 21e, the other cylinder chamber of the air cylinder is evacuated, the air cylinder is moved in a predetermined direction, and the forming mechanism driving mechanism performs a predetermined operation. .

Also, the electrical control device 26 turns the electromagnetic coil 24 OFF.
When the command is issued, the pilot valve 25 closes and the pilot air in the spool chamber 22a is discharged from the pilot air outlet 2.
5b, the spool 22 is moved to the left by the spring 23, the main air is switched, and the air cylinder is operated in the opposite direction, becoming inactive.

In this case, the solenoid valve body 21, the base 2
0. The speed control valves 32 are integrated to form one valve block, which corresponds to each forming mechanism drive mechanism, and the valve blocks corresponding to each mechanism are arranged adjacent to each base in the horizontal direction. By doing so, a plurality of them are arranged in a connected manner.

〔Effect of the invention〕

In this way, in the present invention, a solenoid valve is provided on the -1 side of a block-shaped base having a large number of pipe holes, and by switching the solenoid valve, an air supply/discharge passage to a mechanism formed in the base is connected. In addition to switching the air, the speed control source connected to the air supply/discharge passage is placed outside the base, so it is not necessary to provide an ascending order inside by simply forming a conduit in the base. The structure can be made simple and the chances of failure or other problems can be reduced. Moreover, since the speed control valve and solenoid valve are provided outside the base, commercially available products can be used, and there is no need to use specially designed ones. Furthermore, since the base, solenoid valve, and speed control valve are combined into one block that corresponds to each mechanism, in the event of a failure, the entire block can be removed from the molding machine and replaced, reducing downtime of the molding machine as in the past. You can also hide it.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a schematic configuration of a nozzle valve block device for a glassware molding machine according to the present invention, and FIGS. 2 and 3 are diagrams each illustrating the configuration of a conventional valve block device. 20...Base, 21...Solenoid valve body,
22...Spool, 23...Spring, 24...
- Electromagnetic coil, 25... Pilot valve, 26... Electrical control device, 27... Pilot air passage, 28...
・・Main air passage, 29a, 29b・”
Exhaust passage, 30a. 30b...Air supply/discharge passage, 32...Speed adjustment valve.

Claims (1)

[Claims] 1. In a valve block device for a glassware forming machine that receives a molten glass gob and then shapes the molten glass gob into a glassware using a plurality of forming mechanisms such as a rough mold and a finishing mold, A solenoid valve that is operated by a control signal sent from a control device, a pilot air passage, a main air passage, an exhaust passage, and a forming mechanism that have the solenoid valve mounted on one side and communicate with each control port of the solenoid valve. A valve block device for a glassware molding machine, comprising a base having an air supply/discharge passage to a driving mechanism, and a speed control valve connected to the air supply/discharge passage on the outside of the base. 2. The valve block device for a glassware molding machine according to claim 1, wherein a plurality of bases are arranged adjacent to each other in correspondence with each mechanism.