JPH0699155B2 - Mold lubricant application device for glass bottle making machine - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold lubricating liquid application device for a glass bottle making machine, and a lubricant liquid is automatically applied to the mold surface of a bottle molding mold to form a molten glass block in the mold. It is used for smoothly pouring or pouring into the glass and for facilitating the separation of the molded glass article from the mold.

2. Description of the Related Art Examples of conventional techniques for this type of apparatus include (a) Japanese Patent Publication No. 38-3430, (b) Japanese Patent Publication No. 48-29812, and Japanese Patent Publication No. 51-22005. The one disclosed in the above is known.

The former sprays the lubricating liquid from the funnel into the mold, and the latter sprays the lubricating liquid into the mold by means of the lubricating liquid coating means provided at a place different from the molten glass supply path. It was done like this.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention Since all of the above-mentioned conventional devices have a configuration in which the lubricant is sprayed downward from above the mold, the plunger is covered with the lubricant and the plunger is rapidly cooled / locally cooled, and the plunger is cooled. This is one of the causes of defects in the glass molded product.

Further, since the device is placed in a high temperature atmosphere, in the configuration in which the lubricating liquid is sprayed downward as described above, the sprayed lubricating liquid is disturbed by the rising air current and uniform coating on the mold surface is not inevitable. Has the drawback that it cannot be easily performed.

By the way, there is also a lubricating liquid automatic spraying apparatus for glass bottle machines as described in Japanese Patent Application No. 56-105508.

However, in this device, since the lubricating liquid supplied by the pump 31 is directly supplied to the mist generating device 17 via the solenoid valve 33, a small amount of the lubricating liquid can be sprayed without variation. could not.

Further, since the control circuit in this device is composed only of the counter 47 that determines the spray interval, the first timer 48 that determines the spray start timing, and the second timer 49 that determines the spray end timing. However, the start and end of spraying had to be uniform, and sufficient control performance could not be exhibited.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention relates to a nozzle holder disposed above a plunger mechanism below a predetermined stop position of a mold of each molding section, and to the nozzle holder. A nozzle that is pivotally attached and sprays a mixed mist of a lubricating liquid and air upward toward the die surface of each mold, a lubricating liquid supply unit that supplies the lubricating liquid to the nozzle, and an output unit of the lubricating liquid supply unit. A constant amount feeding means provided between the nozzle and the air supply means for supplying compressed air to the nozzle corresponding to the operation of the lubricating liquid supply means; and a supply operation of the lubricating liquid supply means and the air supply means. In a mold lubrication liquid application device including control means for controlling each of them, the lubrication liquid supply means includes: (a) a pump that constantly supplies the lubrication liquid in the lubrication liquid tank to the oil supply passage; and (b) this oil supply passage. A first opening / closing part for opening / closing, (c) a second opening / closing part for opening / closing a return oil passage between the first opening / closing part and the lubricating liquid tank, and (d) the first opening / closing part and each molding section. A third opening / closing part provided for each molding section for opening / closing the oil supply passage between the nozzle and the nozzle, wherein the control means (e) responds to a coating command signal for each molding section, Pressurization control means for controlling the second opening / closing part from the open state to the closed state, and controlling the third opening / closing part corresponding to the corresponding molding section from the closed state to the open state, and (f) the opened state The pressure of the oil supply passage between the third opening / closing part and the nozzle corresponding thereto is
Depressurization control means for controlling the first opening / closing portion from the open state to the closed state after exceeding a predetermined value and returning the second opening / closing portion to the open state, and (g) then closing the third opening / closing portion. It is characteristically provided with a lubricating liquid circulating means for returning to the state and returning the first opening / closing portion to the open state.

The first opening / closing section, the second opening / closing section, and the third opening / closing section are not particularly limited, but in the embodiments described later, respectively,
Solenoid valve 36 for depressurization, solenoid valve 37 for pressurization, and solenoid valve for lubrication
38 corresponds to this.

Function In the present invention, the air supply means supplies the compressed air to the nozzles at the timing when the lubricant liquid supply means supplies the lubricant liquid to the nozzles.

The lubricating liquid supply means is composed of (e) pressurization control means, (f) depressurization control means and (g) lubricating liquid circulation means, and the operation of each means (e) to (g) is as follows. On the street.

(E) The pressurizing control means controls the second opening / closing section from the open state to the closed state in response to the application command signal for each molding section, and closes the third opening / closing section corresponding to the corresponding molding section. To open state. In addition, in this state, the first opening / closing portion remains open.

Here, since the pressurizing means independently controls the second opening / closing portion and the third opening / closing portion, the oil supply passage from the first opening / closing portion to the second opening / closing portion can be adjusted by, for example, shifting the operation timings of the two. It is also possible to increase the pressure after the third opening / closing part after increasing the pressure of No. 3, and if such control is performed,
It is possible to raise the pressure after the opening / closing section more rapidly.

(F) The depressurization control means causes the first opening / closing portion to change from the open state to the closed state after the pressure in the oil supply passage between the opened third opening / closing portion and the nozzle corresponding thereto exceeds a predetermined value. Control to return the second opening / closing part to the open state.

(G) The lubricating liquid circulating means is operated thereafter to return the third opening / closing portion to the closed state and the first opening / closing portion to the open state.

The timing for returning the third opening / closing portion to the closed state is not particularly limited, but may be set, for example, at the timing when the pressure after the third opening / closing portion becomes zero.

As described above, in the present invention, since the pressure after the third opening / closing portion changes in a pulsed manner, the constant amount feeding means that operates in response to the pressure transition is provided between the third opening / closing portion and the nozzle. Therefore, it becomes possible to spray a small amount of a fixed amount of the lubricating liquid without variation.

Further, according to the present invention, since the lubricating liquid is sprayed from below the predetermined stop position of the molding die (mouth die, rough die) toward the mold surface, the spray is disturbed by the ascending air current. It is possible to evenly apply the lubricating liquid without
The required amount of lubricating liquid can be suppressed to a very small amount, and the life of the mold is improved.

Further, since the nozzle holder is fixed to the plunger mechanism, the positional relationship between the nozzle and the mold is always kept constant even when the mold is replaced with another type of mold, even if it is moved up and down. Maintain a constant amount of lubricant applied to the mold surface.

Furthermore, since the nozzle holder is fixed to the bottom mold mechanism, even if the molded product is of a different type and the height of the bottom mold mechanism is changed, the nozzle and bottom mold will not move against the vertical movement of the bottom mold mechanism. The positional relationship is kept constant, and the amount of lubricating liquid applied to the bottom die surface is kept constant.

As a result, the spraying state of the lubricating liquid on each mold surface does not change, and the adjustment of the coating amount becomes easy.

Embodiment One embodiment of the present invention will be described below with reference to the accompanying drawings.

This example shows an apparatus applied to the application of a rough type or a mouth type lubricant to a glass bottle. It should be noted that this glass bottle making machine is composed of a plurality of molding sections that operate in parallel, and each molding section has a rough mold step using a rough mold and a mouth mold, and a finish mold step using a finishing mold and a bottom mold. ing.
In FIG. 1, reference numeral 1 denotes a double gob system, that is, a plunger mechanism capable of simultaneously performing two blown products. A support bracket 3 is fixed to a cap 2 located above the mechanism 1 with bolts 4. On this bracket 3, two nozzle die holders 5 for die and a nozzle holder 6 for rough die are provided.

First, the mouth mold device will be described.

The mouth-shaped nozzle holders 5 are pivotally attached to both ends of the air supply block 7 provided on the bracket 3 so as to be able to move up and down, and in the grooves 8a provided on the left and right sides of the mouth-shaped receiving seats 8 of the plungers. Facing.

Reference numerals 9 and 9 denote mouth type oil supply pipes, which are connected to the lubricating liquid introducing passages 7a and 7a formed in the air supply block 7 so as to correspond to the mouth type nozzle holders 5, respectively.

Air supply passages 3a, 3b are formed in the support bracket 3, and the air supply passages 3a, 3b are the air supply blocks 7, 6A.
Distribution paths 3d and 6d are connected to the introduction paths 7a and 6a, respectively. As a result, the lubricating liquid supplied through the oil supply pipe 9 and the air supplied through the air supply passage 3a join together in the respective introduction passages 7a, 7a.

A through hole 5a is formed in each nozzle holder 5, and a mouth-shaped nozzle 12 communicating with this through hole 5a is attached to the tip of each nozzle holder 5. This nozzle 12 is located in the corresponding concave groove 8a of the mouth-shaped receiving seat 8 when the nozzle holder 5 is in the laid-down posture as shown by the solid line in FIG. At the same time, the nozzle 12 is set upward so as to face the mold surface of the mouth mold 13 that reverts onto the mouth mold receiving seat 8. The through hole 5a of the nozzle holder 5 is set so that its port is aligned with the introduction path 7a of the air supply block 7 in the above-mentioned lying position.

Reference numeral 10 is a junction block provided on the support bracket 3. Lubricating liquid supplied from an oil supply system, which will be described later, through an oil supply passage 61 is supplied to the block 10 and the oil supply pipe 1.
4, distributed to each of the oil supply pipes 9 through the fixed amount feeding means 15. The amount of oil supplied to each nozzle 12 is arbitrarily adjusted by the fixed amount feeding means 15.

Each of the above mechanisms is also arranged on the opposite side with the plunger mechanism 1 sandwiched therebetween, and in each mouth type receiving seat 8, a pair of nozzles 12 are positioned so as to face each other as shown in FIG. To do.

Next, the apparatus for the rough mold will be described. The rough mold nozzle holder 6 has nozzles 17 at both ends thereof, and these nozzles 17 are divided into rough mold halves 18 (shown by a solid line in FIG. 4).
Is positioned below the fully opened position (the angle shown by θ in FIG. 1 is 35 ° in the embodiment), and its blowing direction is set upward so as to face the mold surface of the split part 18. There is.

Reference numerals 16 are crude oil supply pipes, respectively, which are connected to through holes 6a formed in both ends of the rough mold nozzle holder 6, respectively. Support bracket 3 for these through holes 6a
The air supply passage 3b inside is connected. The air supply passage 3b is connected from the air supply block 6A on the bracket 3 to the two distribution passages 6d in the holder 6, and the distribution passage 6d communicates with the through hole 6a. As a result, the lubricating liquid supplied via the oil supply pipe 16 and the air supplied via the air supply passage 3b join together in the passages 6a.

As in the case of the mouth type, the lubricating liquid supplied from the oil supply system described later through the oil supply passage 63 is the junction block 10,
It is distributed to each of the oil supply pipes 16 through the oil supply pipes 19 and the constant amount feeding means 20. The amount of oil supplied to each nozzle 17 is arbitrarily adjusted by the fixed amount feeding means 20.

Regarding each of the above-mentioned mechanisms for the rough mold, the same mechanism corresponding to the other two split parts (opening to the upper half side of FIG. 1) paired with the above-mentioned rough split part 18 is provided. The plunger mechanism 1 is separately provided on opposite sides of the plunger mechanism 1.

FIG. 5 is a flow chart showing the mouth air supply and oil supply mechanism of this apparatus, and FIG. 6 is a similar flow chart for the rough mold.

Hereinafter, FIG. 5 for the mouth mold will be described. 21 is an air supply system, 22
Indicates an oil supply system.

The air supply system 21 includes a compressor 25 that supplies pressurized air to the branch pipe 24 through the air supply passage 23, a filter 26 provided in the middle of the air supply passage 23, a pressure reducing valve 27, an oiler 28, and the like.
Each shunt 24a of the branch pipe 24 is provided corresponding to each molding section of the bottle making machine, and a solenoid valve 29 is provided in the middle of each of these shunts 24a. Support bracket 3 air supply passage 3a
It leads to.

On the other hand, in the oil supply system 22, a pump 33 that supplies the lubricating liquid in the tank 30 to the branch pipe 32 through the oil supply passage 31, a return oil passage 34 that leads to the tank 30 from the end of the branch pipe 32, and an oil supply provided in the middle of the oil supply passage 31. When the internal pressure of the passage 31 exceeds a set value, this is detected and the branch passage 31a is opened to return the excess lubricating liquid in the oil supply passage 31 into the tank 30. A relief valve 35, a solenoid valve 36 for opening and closing the oil supply passage 31, a return oil. It has a solenoid valve 37 for opening and closing the passage 34. A circulation passage is formed by the oil supply passage 31, the branch pipe 32, and the return oil passage 34, and the lubricating liquid is constantly circulated and agitated so that inconveniences such as precipitation and clogging of the lubricating liquid do not occur. Each branch 32a of the branch pipe 32
... is also provided with solenoid valves 38 corresponding to the respective molding sections of the bottle making machine, and solenoid valves 38 are respectively provided in the middle of these, and oil supply passages connected to the solenoid valves 38 are provided.
61 is the junction block of the corresponding molding section
Connected to 10.

The solenoid valves 29, 36, 3 of the air supply system 21 and the oil supply system 22 are
Opening / closing control of 7, 38 is performed by the control circuit 39 of FIG. 7 and 8 are block diagrams schematically showing the air supply system and the oil supply system of the control circuit 39, respectively.

In the air supply system control circuit of FIG. 7, reference numeral 40 denotes a sensor, which operates in synchronization with the operation cycle of each molding section of the bottle making machine and outputs a signal corresponding to one operation cycle of each molding section. ing. 41 is the above sensor 40
The timing setting board which directly receives the signal of No. 2 is designed to designate an arbitrary section in one operation cycle of each molding section and output an ON / OFF signal at that timing. 42a and 42b are counters with different set counts, which receive a counting signal corresponding to each molding section output from the timing setting board 41 to count it, and when it reaches a predetermined count value, clear it and then A signal corresponding to the control board 43 of the stage is sent out. That is, when the number of operation cycles of each molding section reaches the set count of the counter 42a or 42b, a signal corresponding to this is input to the control panel 43.
The control panel 43 logically processes the timing signal directly input from the timing setting panel 41 and the signal input through the counter 42a or 42b to control the opening / closing of the solenoid valve 29 of the corresponding molding section. It is designed to output a signal. The counters 42a and 42b are designed so that they can be arbitrarily designated for each molding section, and this determines how many operation cycles the opening / closing operation of the solenoid valve 29 of each molding section is performed.

On the other hand, in the refueling system control circuit of FIG.
0 ', timing setting board 41', counters 42a ', 42b'
Is shared with the above-mentioned air supply system control circuit.

In this circuit, the opening / closing control of the solenoid valves 38 of the shunts 32a of the branch pipe 32 corresponding to each molding section is controlled by the timing signal of the timing setting board 41 'and the counter 42a' or 4
In addition to the output of the control panel 44 that logically processes the output of 2b ', a solenoid valve used to pressurize and depressurize the circulation path of the oil supply system 22.
It also controls the opening and closing of 36 and 37. This solenoid valve 3
The control of 6,37 has a built-in circuit so that it operates even if either of the counters 42a 'and 42b' counts up, so that any of the other solenoid valves 38 ... Corresponding to the molding section can be operated. When the solenoid valve operates, the opening / closing operation of the solenoid valves 36, 37 is always performed.

9 (a), (b), (c) and (d) show the opening / closing operation of the pressurizing / depressurizing solenoid valves 36 and 37 and another solenoid valve 38 corresponding to the molding section. FIG. 6 is a diagram showing a relationship between a corresponding hydraulic pressure in the branch pipe 32 and a hydraulic pressure in an oil supply passage after the solenoid valve 38.

Next, the operation of this device will be described.

Solenoid valves 29 ... And 38 ... corresponding to each molding section in the air supply system 21 and the oil supply system 22 are normally closed types and are normally closed. On the other hand, the pressurizing / depressurizing solenoid valves 36, 37 of the oil supply system 22 are normally open type and are always open. When the bottle making machine is started, the sensor 40 sends a corresponding signal to the timing setting board 41 for each operation cycle of each molding section. In response to this, the timing setting board 41 sends a timing signal corresponding to a preset predetermined section within one operation cycle of the molding section to the control boards 43 and 44. The setting of the section within the operation cycle by the timing setting board 41 can be arbitrarily changed even while the bottle making machine is being driven.

For a certain molding section, for example, when the counter 42a is designated in advance, when the number of operation cycles of this molding section reaches the number of times corresponding to the set count of the counter 42a, the counter 42a sends a count-up signal to the control panel 43. Is entered. The control panel 43 logically processes this signal and the timing signal corresponding to this molding section, which is separately sent from the timing setting panel 41, and supplies the solenoid valve for air supply 29 corresponding to this molding section.
Open up.

On the other hand, from the timing setting panel 41, a control panel for refueling control
Similarly to 44, a timing signal corresponding to the above-mentioned molding section is sent and a timing signal for pressurization / depressurization is sent separately. Similarly, a count-up signal is input to the control panel 44 from the designated counter 42a. The control panel 44 logically processes these signals to control the opening / closing of the pressurizing solenoid valve 37, the depressurizing solenoid valve 36, and the refueling solenoid valve 38 corresponding to this molding section.

This opening / closing control will be described with reference to FIG. 9. First, the pressurizing solenoid valve 37 is closed as shown in FIG. As a result, the return port side of the circulation path of the oil supply system 22 is closed and the branch pipe
The hydraulic pressure in 32 rapidly rises as shown by the solid line in FIG. A little later than this, the refueling solenoid valve 38 of the branch 32a of the branch pipe 32 is opened, and the oil pressure in the refueling passage after this solenoid valve 38 starts to rapidly increase as shown by the broken line in FIG.
(In this example, the pressure is increased to 15 kg / cm ^2. ) After a predetermined time, the pressurizing solenoid valve 37 is returned to the original open state, while the depressurizing solenoid valve 36 is closed, so that the hydraulic pressure in the branch pipe 32 suddenly decreases.
At the same time, the hydraulic pressure in the oil supply passage after the solenoid valve 38 is also rapidly reduced accordingly, and both are reduced to the 0 level. afterwards,
When the refueling solenoid valve 38 is returned to the original closed state, the depressurization solenoid valve 36 is returned to the original open state a little later than this, and thereafter the lubricating liquid is restored to the initial state in which it circulates in the circulation path. (In this embodiment, the hydraulic pressure at this time is 5 kg / cm ^2. )

By the above control operations of the air supply system 21 and the oil supply system 22, the lubricating liquid and the pressurized air are fed into the respective through holes 5a and 6a of the mouthpiece nozzle holder 5 of the molding section to be mixed and each holder Mouth die nozzle 12 provided at the tip of 5
More mist is injected. This injection timing is
The timing setting board 41 of the control circuit 39 is adjusted so that the mouth die 13 is reverted onto the mouth die seat 8 as shown in FIG.

In this example, two counters 42a and 42b having different set counts are prepared as counters for setting the spray interval of the lubricating liquid. Therefore, the spray interval can be arbitrarily set by selecting and specifying one of them. Moreover, since the counters 42a and 42b can arbitrarily select one of them for each molding section, even when the mold releasability is biased due to the difference in external factors for each molding section, The spray frequency can be set according to each section. In one molding section, when there is a bias such as an external factor for each cavity, or a pair of nozzles is prepared for one mold as in this embodiment, and an external factor is provided for each of these nozzles. If they are different, it is possible to uniformly apply the lubricating liquid to the mold corresponding to each nozzle by adjusting the respective constant amount feeding means 15.

In this embodiment, the counters 42a and 42b are shared by the air supply system 21 and the oil supply system 22.
The lubrication liquid may be supplied in a designated cycle that is independent of the supply of the pressurized air by making the oil supply system 22 different from the oil supply system 22. In this case, the lubricating liquid is sprayed in the cycle designated to supply the pressurized air.

Also in FIG. 6 for the rough mold, the structure is exactly the same as in the case of the mouth mold, 121 is an air supply system, and 122 is an oil supply system.

In the air supply system 121, the pressurized air is supplied to the branch pipe 12 through the air supply passage 123.
It has a compressor 125 to be supplied to 4, a filter 126 provided in the middle of the air supply path 123, a pressure reducing valve 127, an oiler 128 and the like. Each branch 124a of the branch pipe 124 is provided corresponding to each molding section of the bottle making machine. A solenoid valve 129 is provided in the middle of each of these, and this shunt 124a communicates with the air supply passage 3b of the support bracket 3 of the corresponding molding section.

On the other hand, in the oil supply system 122, the lubricating liquid in the tank 130 is supplied to the oil supply passage 131.
Through a branch pipe 132, a return oil passage 134 leading from the end of the branch pipe 132 to the tank 130, and an oil supply passage 131 provided in the middle of the oil supply passage 131. A relief valve 135 that opens the passage 131a to return the excess lubricating liquid in the oil supply passage 131 into the tank 130, a solenoid valve 136 that opens and closes the oil supply passage 131, and a solenoid valve 137 that opens and closes the return oil passage 134, and the oil supply passage 131, The branch pipe 132 and the return oil passage 134 form a circulation passage. As a result, the lubricating liquid is constantly circulated and agitated so that inconveniences such as precipitation and clogging of the lubricating liquid do not occur. Each branch 132a of the branch pipe 132 is also provided so as to correspond to each molding section of the bottle making machine, and a solenoid valve 138 is provided in the middle of each of them, and an oil supply passage connected to the solenoid valve 138 is provided. 63 is connected to the junction block 10 of the corresponding molding section.

Then, the solenoid valves 129, 13 of the air supply system 121 and the oil supply system 122
Opening / closing control of 6,137,138 is performed by the control circuit 139.

The control circuit 139 has exactly the same configuration as the control circuit 39 for the mouth mold shown in FIG. 5, but the injection timing of the lubricating liquid mist is when the rough mold halves 18 are fully opened and stopped. The timing setting board 41 of the control circuit 139 is adjusted so that

The operation of each solenoid valve and control circuit is completely the same as in the case of the mouth type and will not be described.

The spray of the above-mentioned lubricating liquid is made to spray upward on the mouth die 13 from the nozzle 12 arranged below the mouth die 13 and toward the substantially intermediate surface area of the die surface. There is no risk that the spray of the lubricating liquid will be disturbed by the rising airflow generated under the high temperature atmosphere around the mold, the lubricating liquid can be applied almost uniformly over the entire mold surface, and the lubricating liquid will be spattered wastefully. Since there is nothing to do, it can be covered with a very small amount (0.01cc ~ 0.30cc) of lubricating liquid.
This contributes to the improvement of the product yield without causing the product molded immediately after the application of the lubricating liquid to be contaminated by the lubricating liquid and becoming a defective product. In particular, even in the double gob or triple gob system as in this embodiment, the distance between the mouth die 13 and the nozzle 12 in each cavity can be made equal, and the distance can be made short (about 50 mm), so that lubrication is possible. It is more convenient for making the amount of liquid very small. In addition, since the spraying is performed from below, it is possible to avoid a problem that the plunger is contaminated with the lubricating liquid and leads to a defect of the molded product.

Moreover, since the mouthpiece nozzle holder 5 is attached to the upper portion of the plunger mechanism 1 via the support bracket 3, even when different types of mouthpieces are used,
The plunger mechanism 1 vertically follows the vertical movement of the plunger mechanism 1 and the mutual positional relationship does not change. Therefore, the positional relationship between the mouth die nozzle 12 and the mouth die 13 corresponding thereto can always be kept constant. Also from the viewpoint, uniform application of the lubricating liquid and miniaturization of the applied amount are promoted.

The spraying of the lubricating liquid on the rough mold is almost the same as in the case of the mouth mold 13, and uniform coating can be achieved with a very small amount of the lubricating liquid.

Since the mouth-shaped nozzle holder 5 is pivotally supported so as to be able to rise and fall with respect to the air supply block 7, when replacing the plunger or thimble, as shown by phantom lines in FIG. By raising the holder 5, the holder 5 can be retracted from the position of the mouth-shaped receiving seat 8 and does not interfere with the replacement work.

Since the nozzle holder 6 for the rough mold is also arranged below the rough mold, it does not interfere with the replacement of the rough mold, and the mutual positional relationship does not change even when the rough mold of a different type is changed. Is the same as for the mouth type.

The application of the lubricating liquid is effective for improving the mold releasability of the mold, but on the other hand, it also causes the life of the mold to be shortened. Therefore, it is desirable that the spray interval is as long as possible. From such a viewpoint, it is possible to apply a coating such as carbon coating, nickel plating, or fluorocarbon plating to the mold surface of the mouth mold, rough mold, or bottom mold,
It is effective as a measure to lengthen the spray interval.

In this example, when the rough die surface was not coated with carbon, the initial spraying interval had to be 40 or less as the count value of the counter in order not to cause defects in the molded product. On the other hand, when the die surface was coated with carbon, the count value of the counter could be set to 60 intervals. As a result, when the carbon coating is applied, the life of the rough mold is improved by about 30% as compared with the case where the carbon coating is not applied.

FIG. 10 illustrates an example of the configuration of an apparatus for applying a lubricating liquid to a bottom die in a finishing process of a bottle making machine, using a system similar to the air supply system 21 and the oil supply system 22 of the above embodiment. .

In FIG. 10, reference numeral 45 denotes a bottom die mechanism, and a bottom die adapter 47 holding a bottom die 46 is provided on the upper portion thereof. The bottom die mechanism 45 is a double gob type mechanism, and the bottom die adapter 47 is provided with two bottom dies 46. A bottom die nozzle holder 48 is fixed to the bottom die adapter 47 with bolts 49.

In the nozzle holder 48, bottom mold nozzles 50 corresponding to the respective bottom molds 46, 46 are blown down from the obliquely upper direction toward the mold surface of each bottom mold 46 as shown in FIG. It is set and provided as follows.

Reference numeral 51 is a mounting plate connected to the bottom die nozzle holder 48, and a piping block fixed to the plate 51.
The air supply pipe 53 is connected via 52 to a through hole 48a formed in the bottom die nozzle holder 48. The through hole 48a is branched in the holder 48 and communicates with each nozzle 50. The air supply passage extending from the piping block 52 is connected to the corresponding shunt of the branch pipe (corresponding to 24 in FIG. 5) via a solenoid valve as in the case of the air supply system described above. ing.

On the other hand, each of the nozzles 50 is connected to an oil supply pipe 54,
These oil supply pipes 54 are connected to the corresponding shunts of the branch pipes (corresponding to 32 in FIG. 5) of the solenoid valves via the constant amount feeding means 55 arranged on the plate 51, as in the case of the oil supply system described above. Connected through.

In the case of applying the lubricating liquid to the bottom mold 46, as described above,
Nozzle 50 corresponding to the bottom mold 46 on the side close to the nozzle holder 48
And the nozzles 50 corresponding to the bottom mold 46 on the far side have different conditions regarding the spray distance and spray angle, but by adjusting the fixed amount feeding means 55 corresponding to each nozzle 50 to balance the lubricating liquid ( For example, 0.08cc / 1 time for the bottom mold 46 close to the holder 48, 0.20cc for the far mold 46
/ 1 time), the lubricant liquid is evenly applied to each bottom mold 46.

The coating mechanism shown above is shown in FIG. 10 in which one bottom die 46 is provided for each bottom die 46.
Two nozzles 50 are provided so as to correspond to 46, and the supply amount of the lubricating liquid can be adjusted for each nozzle. In addition, three or more nozzles may be associated with one bottom mold 46.

The timing of spraying the lubricating liquid is shown in FIG. 5, FIG. 7 and FIG.
It is controlled by a pipeline and a control circuit having the same structure as that shown in the figure, and it is set so that spraying is performed when the product molded by the finishing mold is taken out.

In the case of this example, the nozzle 50 is integrated with the bottom die mechanism 45 even when the height of the bottom die mechanism is changed in the case of a different product, as in the case of the above-described mouth die and rough die lubricant application. Since it moves up and down, there is no change in the positional relationship between the bottom mold 46 and the nozzle 50, and it is possible to always apply a fixed amount of lubricating liquid.

Further, since the nozzle holder 48 is provided slightly away from the mounting position of the bottom mold 46, it does not interfere with the replacement work of the bottom mold 46.

In the present embodiment, independent pipe systems and control systems are used for the mouth mold, the rough mold, and the bottom mold, but a common pipe system and control system may be used.

EFFECTS OF THE INVENTION In the present invention, the lubricating liquid supply means appropriately controls the first opening / closing portion, the second opening / closing portion, and the third opening / closing portion,
The lubricant pressure after the third opening / closing part can be pulsed between zero and a predetermined value. Therefore, a fixed amount feeding means can be provided between the third opening / closing part and the nozzle, and a small amount of fixed amount of the lubricating liquid can be sprayed without variation.

Further, (a) since the lubricating liquid is sprayed from below the predetermined stop position of the molding die (mouth die, rough die) toward the die surface,
The spray is not disturbed by the ascending airflow, the uniform application of the lubricating liquid is possible, the required amount of the lubricating liquid can be suppressed to a minute amount, and the life of the mold is improved.

(B) Since the nozzle holder is fixed to the plunger mechanism, the positional relationship between the nozzle and the mold is always kept constant even when this mechanism moves up and down, and the lubricant is applied to the mold surface. The amount can be kept quantitative. Further, even when the mold is replaced with another mold, the positional relationship between the nozzle and the mold does not change as described above, and the position adjustment becomes unnecessary, thus improving workability.

(C) Since the nozzle holder is fixed to the bottom mold mechanism, the positional relationship between the nozzle and the bottom mold is kept constant even when the bottom mold mechanism moves up and down, and the bottom mold surface is lubricated. The coating amount of the liquid can be kept constant. Even if the molded product is of a different type and the height of the bottom die mechanism is changed, the positional relationship between the nozzle and the bottom die is constant, and the spraying state does not change, making it easy to adjust the coating amount.

(D) Since the lubricating liquid is supplied to the nozzle in a fixed amount, it is possible to supply a very small amount, which is the minimum required amount, and it is evenly applied without variations between molds, and the life of the mold is improved. I was able to.

[Brief description of drawings]

FIG. 1 is a partial plan view showing an embodiment of the present invention, FIG. 2 is a side view showing a part of FIG. 1 in section, and FIG.
III-III arrow sectional view, FIG. 4 is an elevation view taken along line IV-IV of FIG. 1, FIG. 5 is a flow chart of the air supply system and oil supply system for the mouth mold, and FIG. 6 is for the rough mold. 7 and 8 are block diagrams showing the air supply system control circuit and the oil supply system control circuit, respectively, and FIG. 9 is the operation of the solenoid valve of the oil supply system and the oil supply passage. Explanatory drawing showing the relationship of hydraulic pressure, No. 10
The figure is a side view showing a bottom type lubricating liquid application device in a finishing process. 1 ... Plunger mechanism, 3 ... Support bracket, 5 ...
Nozzle holder for mouth mold, 6 ... Nozzle holder for rough mold, 7
... block for air supply, 9 ... oil supply pipe for mouth mold, 12 ... nozzle for mouth mold, 16 ... oil supply pipe for rough mold, 17 ... nozzle for rough mold, 21 ... air supply system, 22 ... oil supply system, 29 ... electromagnetic Valve, 32 ... Branch pipe, 36 ... Electromagnetic valve (for depressurization), 37 ... Electromagnetic valve (for pressurization), 38 ... Electromagnetic section, 39 ...
Control circuit, 40 ... Sensor, 41 ... Timing setting board, 42a,
42b ... Counter, 43,44 ... Control panel, 50 ... Nozzle for bottom mold

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References

Claims (7)

[Claims] 1. A nozzle holder disposed above a plunger mechanism below a predetermined stop position of a mold in each molding section, and a lubricating liquid which is pivotally attached to the nozzle holder and is directed upward toward a mold surface of each mold. A nozzle for spraying a mixed mist of air and air, a lubricating liquid supply means for supplying a lubricating liquid to the nozzle, a fixed amount feeding means provided between the output part of the lubricating liquid supply means and the nozzle, and the lubricating liquid. In a mold lubricating liquid coating apparatus, comprising: an air supply unit for supplying compressed air to the nozzle in correspondence with the operation of the supply unit; and a control unit for controlling each of the lubricating liquid supply unit and the supply operation of the air supply unit. The lubricating liquid supply means includes a pump that constantly supplies the lubricating liquid in the lubricating liquid tank to the oil supply passage, a first opening / closing portion that opens and closes the oil supply passage, and a gap between the first opening / closing portion and the lubricating liquid tank. Return of A second opening / closing portion for opening / closing the oil return passage; and a third opening / closing portion provided for each molding section for opening / closing the oil supply passage between the first opening / closing portion and the nozzle of each molding section. The control means controls the second opening / closing section from an open state to a closed state in response to a coating command signal for each forming section, and changes the third opening / closing section corresponding to the corresponding forming section from the closed state. After the pressure of the oil supply passage between the pressurization control means for controlling the open state, the opened third opening / closing portion and the nozzle corresponding thereto exceeds the predetermined value, the first opening / closing portion is opened. Control from open state to closed state,
Depressurization control means for returning the second opening / closing portion to the open state, and thereafter, lubricating liquid circulating means for returning the third opening / closing portion to the closed state and returning the first opening / closing portion to the open state. A mold lubrication liquid application device for glass bottle machines. 2. The counting means counts the number of bottle making operations in each molding section, and outputs a count-up signal when the counted value matches a preset set value. The die lubrication liquid application device for a glass bottle making machine according to claim 1, further comprising: an application command means for outputting the application command signal based on the count-up signal. 3. A mold lubricating liquid application device for a glass bottle making machine according to claim 2, wherein the counting means can set a set value independently for each molding section. . 4. The mold for a glass bottle making machine according to claim 1, wherein the nozzle holder is arranged at a position below a stop position where the mouth die is reverted. Lubricant application device. 5. The nozzle holder is rotatably and pivotally attached to an air supply and oil supply block so as to be in a retracted position where replacement of the plunger and thimble is not hindered in an upright posture. Item 4. A mold lubricant application device for a glass bottle machine according to item 4. 6. The arrangement position of the nozzle holder is below a stop position where the rough mold is opened.
Item 5. A mold lubricating liquid application device for a glass bottle machine according to any one of items 1 to 3. 7. The mold for a glass bottle making machine according to claim 1, wherein a plurality of the nozzles are provided for one mold. Lubricant application device.