KR20200014432A - Release lubricant applying device to molding for glass bottle manufacturing, Release lubricant application method to molding for glass bottle manufacturing, Glass bottle manufacturing apparatus, and Glass bottle manufacturing method - Google Patents

Abstract

Provides a release lubricant applying device to the molding for glass bottle production, a release lubricant applying method to the molding for glass bottle manufacturing, a glass bottle manufacturing device, and a glass bottle manufacturing method capable of reducing the thickness change of the bottom portion of the glass bottle after the release lubricant is applied. do. The release lubricant application device 5 to the molding for glass bottle manufacturing is the first region 41 set on the spherical shape 11 side of the inner surface of the molding 10 and a part farther from the spherical shape 11 than the first region 41. The release lubricant such that the release lubricant film thickness T1 of the first region 41 becomes larger than the release lubricant film thickness T2 (including zero) of the second region 42 with respect to the second region 42 set in FIG. Apply.

Description

Release lubricant applying device to molding for glass bottle manufacturing, Release lubricant application method to molding for glass bottle manufacturing, Glass bottle manufacturing apparatus, and Glass bottle manufacturing method

TECHNICAL FIELD This invention relates to the mold release lubricant application | coating apparatus to the molding for glass bottle manufacture, the release lubricant application method to the molding for glass bottle manufacture, a glass bottle manufacturing apparatus, and a glass bottle manufacturing method.

Glass bottles are usually finalized by filling a mold with a product (hot molten glass mass) and inflating the product with compressed air or by inflating the molded parison with compressed air. Usually, a mold release lubricant is apply | coated to a metal mold | die (for example, refer patent document 1). This release lubricant is applied to the mold inner surface for the purpose of making the parison easy to release from the mold (securing mold release) or for securing the slipperiness of the mold and the product. However, release lubricants need to be applied to the mold inner surface regularly, for example every few tens of minutes, in order to prevent release and slippage degradation.

The hollow glass product forming mold described in Patent Document 1 has two mold portions. And the structure which forms a uniform skin film in the whole surface of the inner surface which partitions the cavity of a metal mold | die by a movable blowing tube in the state in which the two metal mold | die parts are in the closed position closed with each other is disclosed.

Japanese Patent Publication No. 2009-538818

However, when the release lubricant is applied to the entire surface of the inner surface partitioning the cavity, the thickness of the bottom portion of the glass bottle is likely to change due to a decrease in the adhesion between the mold and the parison.

The present invention has been made in view of the above-mentioned problems, and a release lubricant applying device to a molding for manufacturing a glass bottle capable of securing a glass bottle having a smaller change in thickness, a release lubricant applying method to a molding for manufacturing a glass bottle, a glass bottle manufacturing apparatus, and It is an object to provide a glass bottle manufacturing method.

As a result of intensive studies, the inventors of the present invention have obtained the idea that the application of a release lubricant to the entire surface of the inner surface of a molding for producing a glass bottle is not necessarily optimal for molding a glass bottle, and thus, the present invention has been completed.

(1) In order to solve the said subject, the mold release lubricant application apparatus to the molding for glass bottle manufacture by the aspect with this invention has the spherical shape more than the 1st area | region set in the spherical side of the inner surface of the molding, and this 1st area | region. It is comprised so that a release lubricant may be apply | coated so that the release lubricant film thickness of a said 1st area may become larger than the release lubricant film thickness (including zero) of a said 2nd area with respect to the 2nd area | region set in the place remote from the said 2nd area | region.

According to this structure, the 1st area | region set at the spherical side is an area | region which rubs and touches a product, for example at the time of product filling in a molding inner surface, and since slipperiness | lubricacy is needed, it is essential to apply a release lubricant. On the other hand, since the second region is set at a point farther from the sphere than the first region, the second region does not come into contact with the product during product charging. For this reason, in the 2nd area | region, in order to ensure the slipperiness | lubricacy with a product, the necessity to apply a release lubricant is inferior. As in this configuration, by changing the film thickness of the mold release lubricant in the second region to be smaller than the film thickness of the mold release lubricant in the first region, the change in the thickness in the bottom portion of the bottle can be reduced.

(2) The said 2nd area may be comprised so that the bottle bottom side formation part in the said shaping | molding may be carried out so that the said mold release lubricant may not be apply | coated to the said bottle bottom side formation part.

The said bottle bottom side forming part means the baffle side part in the inner surface of a shaping | molding.

According to this structure, the change of the thickness of the lower part of a bottle can be made small because it suppresses the fall of the modeling and the parison in the bottle bottom side formation part.

(3) It is preferable that the boundary between the said 1st area | region and the said 2nd area | region is set in the position of 30%-80% of the total length of the said molding inner surface from the end of the said spherical side among the said inner surfaces of the said molding.

According to this structure, a release lubricant can be apply | coated more reliably to the place which needs to apply | coat a mold release lubricant sufficiently during shaping | molding from a viewpoint of a slipperiness improvement by setting a position of a boundary more than the said lower limit. In addition, by changing the position of the boundary below the upper limit, the thickness change of the bottom portion of the bottle can be more surely reduced.

(4) The said coating apparatus is comprised so that the said mold release lubricant may be apply | coated by the blow molding shaping | molding as said shaping | molding, and a said 1st area | region corresponds to the settle blow line in the blow molding shaping | molding. It is preferable to include the area | region which extends to the said spherical side from the said.

According to this structure, when a compressed air pressurizes a product to a spherical side in a set blow process, a mold release lubricant can be reliably supplied to the location of the molding inner surface which rubs and rubs off. In addition, in the set blow process, the film thickness of the release lubricant of the location where the product of the shaping | molding inner surface is rubbed and is unlikely to apply can be made into the value smaller than the film thickness of zero or a 1st area | region. Thereby, the change of the thickness in the lower part of a bottle can be made small.

(5) The said coating apparatus is comprised so that the said mold release lubricant may be apply | coated with the press molding molding as said molding, and the area | region which the product touches as the product rubs when a product is filled in the said press molding molding among the said press molding moldings It is preferable that it is set as 1 area.

According to this structure, since a product is rubbed, a sufficient release lubricant can be supplied to the 1st area | region where sliding property is calculated | required.

(6) It is preferable that the said coating apparatus further includes the application | coating part which apply | coats the said release lubricant by the said shaping | molding, and the control unit which controls the operation | movement of the said application | coating part.

According to this structure, a control unit can control actual release lubricant film thickness by controlling an application part.

(7) It is preferable that the said coating part is comprised so that it may be displaced by the displacement mechanism with respect to the said shaping | molding, and the said control unit contains the control part which controls the operation | movement of the said displacement mechanism, and supply of the said release lubricant from the said application part. .

According to this configuration, the control unit can supply the release lubricant from the applicator to the molding while changing the position of the applicator by operating the displacement mechanism. Thereby, the actual release lubricant film thickness in each part of the inner surface of a shaping | molding can be controlled.

(8) The said coating part starts spraying of the said release lubricant in the position of the one side of the one end of the said spherical side among the boundary side of the said 1st area | region and the said 2nd area | region, and the said inner surface of the said shaping | molding, and toward the other side It is preferably controlled by the control unit to spray the release lubricant while displacing.

According to this configuration, for example, when the application part sprays the release lubricant while displacing from the boundary side between the first region and the second region toward the spherical side, it is more reliably prevented from attaching unnecessary release lubricant in the second region. can do. In addition, when the application part sprays the release lubricant while displacing from the spherical side toward the boundary side between the first region and the second region, it is easy to realize a clearer film thickness difference at the boundary between the first region and the second region.

(9) The applicator sprays the release lubricant from the boundary between the first region and the second region to one end of the spherical side of the molding inner surface, and then sprays the release lubricant into the spherical shape of the release lubricant. It may be comprised so that spraying may be stopped.

According to this configuration, it is possible to prevent the release lubricant from being applied to the sphere.

(10) The said coating part sprays the said release lubricant from the boundary of the said 1st area | region and the said 2nd area | region to one end of the said spherical side of the said molding inner surface, and maintains spraying of the said release lubricant of a pair of said moldings As the split mold is opened, the upper surface of the spherical shape may be sprayed, and the space inside the spherical shape may be entered to spray the spherical inner surface.

According to this structure, a mold release lubricant can be apply | coated to a shaping | molding and a spherical shape with the spraying state of the mold release lubricant from an application part being stabilized.

(11) The applicator sprays the release lubricant from the boundary between the first region and the second region to one end of the spherical side of the molding inner surface, and then stops spraying of the release lubricant once, and then As a pair of split molds are opened, it may be comprised so that it may enter the space in the said sphere, and spray the upper surface of the said sphere continuously on the inner surface of the said sphere.

According to this structure, a coating part can apply a release lubricant to a wide range among the spherical upper surface. As a result, the slidability (easiness of sliding) of the molding and the sphere can be further improved.

(12) In order to solve the said subject, the release lubricant application | coating method to the mold for glass bottle manufacture by the aspect with this invention has the 1st area | region set in the spherical side of the inner surface of the molding, and the place far from the said sphere rather than this first area | region. The release lubricant is applied so that the release lubricant film thickness of the first region is larger than the release lubricant film thickness (including zero) of the second region with respect to the set second region.

(13) Moreover, in order to solve the said subject, the glass bottle manufacturing apparatus by the situation with this invention is equipped with the release lubricant application | coating device to the molding for glass bottle manufacture mentioned above.

(14) Moreover, in order to solve the said subject, the glass bottle manufacturing method by the aspect with this invention has the 1st area | region set in the spherical side of the inside of a molding, and the 2nd area | region set in the place farther from the said sphere than this 1st area | region. Regarding the release lubricant film thickness of the first region to be greater than the release lubricant film thickness of the second region (including zero), a release lubricant application step of applying a release lubricant and molding the parison using the molding The molding step is included.

According to the structure of said (12)-(14), the 1st area | region set to the spherical side is an area | region which rubs and touches a product, for example, at the time of product filling in a molding inner surface, and since slipperiness | lubricacy is needed, a release lubricant is apply | coated It is a must. On the other hand, since the second region is set at a point farther from the sphere than the first region, the second region does not come into contact with the product during product charging. For this reason, in the 2nd area | region, in order to ensure the slipperiness | lubricacy with a product, the necessity to apply a release lubricant is inferior. As in this configuration, by changing the film thickness of the mold release lubricant in the second region to be smaller than the film thickness of the mold release lubricant in the first region, the change in the thickness in the bottom portion of the bottle can be reduced.

(Effects of the Invention)

According to this invention, the thickness change of the lower part of a bottle by application of a release lubricant can be made small. As a result, by preventing the thickness of the glass bottle from being outside the standard, the number of discards due to the release lubricant can be reduced, contributing to the improvement of production efficiency. Moreover, the usage-amount of a mold release lubricant can be suppressed by dividing an application | coating area | region.

1 is a schematic view of a glass bottle manufacturing apparatus according to a first embodiment of the present invention.
It is a schematic diagram which shows a coating device and molding.
3 (A), 3 (B), and 3 (C) are diagrams for explaining the main points of the molding process, and Fig. 3 (A) shows a state in which a product is filled in the molding, and Fig. 3 (B). Shows a set blow process, and FIG.3 (C) has shown a counter blow process.
Fig. 4 is a view for explaining the operation of the nozzle when the coating device applies the release lubricant to the inner surface of the mold but does not apply the release lubricant to the inner surface of the mold.
5 (A) and 5 (B) are diagrams for explaining pattern A in the case where (2) the coating device applies a release lubricant to the inner surface and upper surface of the mold and the inner surface of the mold.
6 (A) and 6 (B) are diagrams for explaining pattern B in the case where (2) the coating device applies a release lubricant to the inner surface of the mold and the inner and upper surfaces of the sphere.
7 (A) to 7 (C) are diagrams for explaining pattern C in the case where (2) the coating device applies a release lubricant to the inner surface and upper surface of the mold and the inner surface of the mold.
FIG.8 (A)-FIG.8 (C) are the figures for demonstrating the pattern D in the case where (2) an application | coating device apply | coats a mold release lubricant to the inner surface and upper surface of a molding inner surface, and a spherical shape.
9 (A) and 9 (B) are diagrams for explaining the pattern E in the case where (2) the coating device applies a release lubricant to the inner surface of the mold and the inner surface and the upper surface of the mold.
It is a schematic diagram of the glass bottle manufacturing apparatus which concerns on 2nd Embodiment of this invention.
It is a schematic diagram which shows a coating device and molding.
FIG. 12: is a figure for demonstrating the essential point of a shaping | molding process, FIG. 12 (A) shows the state by which the product was filled with the shaping | molding, and FIG. 12 (B) has shown the pressing process in shaping | molding.
It is a side view of the glass bottle of an Example and a comparative example.
FIG. 14: shows the average value of the glass thickness in each height position of x (mm) from the ground plane of a bottle with respect to the reference glass bottle of an Example, and the reference glass bottle of a comparative example.
Fig. 15 (A) is a reference to each of Comparative Examples (overall surface coating) and Comparative Examples of 1 to 5 rounds after release lubricant application with respect to the average value of the glass thickness at each of the height positions of x (mm) from the ground plane of the bottle. It is a figure which plotted the thickness difference of a glass bottle. Fig. 15 (B) shows the results of the first round to the fifth round (first area application) and the examples after the release lubricant application with respect to the average value of the glass thickness at each of the height positions of x (mm) from the ground plane of the bottle. It is a figure which plotted the thickness difference of a reference glass bottle.

EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing this invention is demonstrated, referring drawings.

<1st embodiment>

1 is a schematic view of a glass bottle manufacturing apparatus 1 according to a first embodiment of the present invention. FIG. 2: is a schematic diagram which shows the coating apparatus 5 and the molding 10 of the glass bottle manufacturing apparatus 1. As shown in FIG. With reference to FIGS. 1-2, the glass bottle manufacturing apparatus 1 (henceforth a manufacturing apparatus 1) manufactures the parison 102 as a manufacturing intermediate of the glass bottle 103 by a blow & blow process. .

The manufacturing apparatus 1 has the molding part 2 and the coating apparatus 5.

Molding portion 2 is used to mold parison 102. The molding part 2 is supplied (filled) with the product 101 (molten glass mass), and the molding part 2 molds this product 101 to the parison 102.

The molding part 2 has the molding 10, the spherical shape 11, the funnel 12, the baffle 13, the thimble 21, and the plunger 22. As shown in FIG.

A coating layer is formed on the inner surface of the molding 10 as a region for forming the product 101 into the parison 102. This inner surface is also regularly coated with a release lubricant.

The molding 10 is used to mold a portion of the glass bottle 103 excluding the bent portion 101a. The inner surface of the mold 10 forms a cavity 17 for filling the product 101. In this specification, the surface which forms the cavity 17 among the surfaces of the molding 10 is called the inner surface of the molding 10. The molding 10 has a pair of split molds 10a and 10b facing each other in a direction orthogonal to the longitudinal direction L1. The cavity 17 is formed by combining these split molds 10a and 10b with each other. In this embodiment, the cavity 17 is formed in the taper shape which becomes wider as it moves away from the rectangle 11. In addition, the cavity 17 may be cylindrical. And the upper end (part of baffle 13 side) of the shaping | molding 10 contains the bottle bottom side formation part 10c. The lower end 10d of the molding 10 is formed in a recessed shape upward, and a spherical shape 11 is disposed in this recessed portion.

The sphere 11 is used to form the sphere 101a of the glass bottle 103. The sphere 11 is fitted to the lower end 10d of the molding 10. The upper surface 11c of the sphere 11 faces the lower surface of the lower end 10d of the molding 10. In addition, the thimble 21 and the plunger 22 block the sphere 11. The sphere 11 has a pair of split molds 11a and 11b facing each other in the direction orthogonal to the longitudinal direction L1, and these split molds 11a and 11b are combined with each other. Spiral grooves or uneven portions are formed on the inner surface of the sphere 11.

The split molds 10a and 10b are suitably switched to an open state separated from each other and a closed state closed from each other by an opening / closing mechanism (not shown). Similarly, the split molds 11a and 11b are suitably switched to an open state separated from each other and a closed state closed from each other by an open / close mechanism not shown.

The funnel 12 is cylindrical and assists in entering the product 101 into the cavity 17. In addition, the funnel 12 cooperates with the baffle 13 to close the upper end of the molding 10 in the set blow process. After this closing operation, compressed air is injected toward the product 101 in the cavity 17 through the vent hole of the baffle 13.

The plunger 22 is comprised so that blowing of the compressed air supplied from the compressor which is not shown in figure toward the product 101 in the cavity 17 is possible. The plunger 22 is guided by the cylindrical thimble 21, and is movable up and down (the longitudinal direction L1 of the molding 10).

The main point of the molding process (parison molding) by the manufacturing apparatus 1 which has the said structure is demonstrated below. In the molding step (parison molding), as shown in Fig. 3A, first, the product 101 is filled in the cavity 17 of the molding 10 with the funnel 12 attached thereto. At this time, the plunger 22 is raised, and the tip portion of the plunger 22 receives the product 101. Thereafter, a baffle 13 is attached to the funnel 12 as shown in Fig. 3B.

Next, compressed air is injected from the baffle 13 toward the cavity 17 as indicated by the arrow. Accordingly, the product 101 is deformed to be pressed into the sphere 11. As a result, the bend 101a is formed in the product 101, and the whole of the product 101 is pressed against the inner surface of the molding 10. At this time, the product 101 of the compressed (pressurized) state in the cavity 17 and the boundary line of air become the position 18 corresponding to the set blow line.

Subsequently, as shown in FIG. 3 (C), the plunger 22 descends while the upper end of the molding 10 is blocked by the baffle 13, and compressed air is lowered from the lower portion of the plunger 22. Compressed air is blown through the interior as indicated by the arrow toward the interior of the product 101. That is, a counter blow process is performed. Accordingly, the product 101 is pressed against the entire inner surface of the molding 10, and a cavity is formed in the product 101. The parison 102 is molded by such a process. In addition, the parison 102 becomes the glass bottle 103 through the finishing process which is not shown in figure.

As described above, a release lubricant is regularly applied to the cavity inner surface of the molding 10 in order to secure the sliding property with the product 101 and the releasability (easiness of separation) with the parison 102. In order to apply this mold release lubricant, the coating device 5 is used.

With reference to FIGS. 1-2, the mineral oil which contains graphite particle as a solid lubricant can be illustrated as a mold release lubricant which the coating device 5 apply | coats. In this embodiment, the coating device 5 is comprised so that a mold release lubricant may be apply | coated to the inner surface (inner surface which forms the cavity 17) which is the molding for blow molding.

The coating device 5 includes a control unit (control unit) 31, a displacement mechanism 32, a release lubricant supply mechanism (not shown), and a nozzle 34.

The control part 31 has the structure which outputs a predetermined | prescribed output signal based on a predetermined | prescribed input signal, for example, can be formed using a programmable controller PLC. The control unit 31 may be formed using a computer including a central processing unit (CPU), a random access memory (RAM), and a read only memory (ROM). In addition, the control part 31 may spray a release lubricant to the nozzle 34 by the mechanical apparatus which does not contain an electric circuit, and may displace the nozzle 34. FIG.

The control part 31 is comprised so that the operation | movement of the displacement mechanism 32 (nozzle 34) and the supply amount (spray amount) of the release lubricant from the spray hole 38 mentioned later of the nozzle 34 are controlled. Control of the spray amount to each area | region of the inner surface of the shaping | molding 10 is control of the spray amount itself (liquid pressure) from the nozzle 34, control of the rising / falling speed of the nozzle 34 in the fixed state, or nozzle It can carry out by controlling the spray timing of the release lubricant from (34). Of course, the desired application is also possible by the on-off control of the spraying of the release lubricant from the nozzle 34.

The control part 31 is comprised so that detection of the opening / closing state of the pair of split molds 10a and 10b of the molding 10 is possible. For example, the sensor 31 which detects the open / close positions of the pair of split molds 10a and 10b is connected to the control unit 31 so that the control unit 31 can detect the open / close state of the pair of split molds 10a and 10b. good. Further, for example, a control circuit for controlling the operation of the pair of split molds 10a and 10b is connected to the controller 31 so that the controller 31 receives a signal from the control circuit and the pair of split molds 10a. , 10b) may be detected. For example, the structure which the control part 31 controls the opening / closing operation | movement of a pair of split mold | type 10a, 10b may be employ | adopted.

The displacement mechanism 32 is used to displace the nozzle 34 with respect to the molding 10 and to maintain the position of the nozzle 34. The displacement mechanism 32 is formed using the articulated robot, such as a 6-axis robot, for example. In addition, the displacement mechanism 32 should just be able to enter at least the nozzle 34 into the cavity 17 of the shaping | molding 10, and a specific mechanism is not limited. Preferably, the displacement mechanism 32 is comprised so that the nozzle 34 can go in and out about the cavity 17 of any molding 10, when two or more moldings 10 are formed. Moreover, the displacement mechanism 32 can displace the nozzle 34 also with respect to the sphere 11, and also about the inner surface and the upper surface 11c of any sphere 11 even when a plurality of spheres 11 are provided. Can be sprayed. Thereby, a release lubricant can be reliably apply | coated to the whole surface of the inner surface of the sphere 11 even if the sphere 11 is an elongate shape.

The above-described release lubricant supply mechanism is used to supply the release lubricant to the nozzle 34, and has a hose, a pump, and a control valve for transporting the release lubricant to the nozzle 34, for example. And this release lubricant supply mechanism is electrically connected with the control part 31, and is comprised so that supply and release of a release lubricant to the nozzle 34 can be controlled by control of the control part 31. As shown in FIG.

The nozzle 34 is used to spray the release lubricant. The nozzle 34 is formed in elongate rod shape, and the base end of the nozzle 34 is supported by the tip of the displacement mechanism 32. A spray opening (coating unit) 38 formed by a slit or the like is formed at the tip of the nozzle 34. The spray opening 38 is arrange | positioned in multiple numbers on the outer peripheral surface of the nozzle 34 centering on the center axis line of the nozzle 34, for example. The release lubricant reaches the spray port 38 through an unillustrated path inside the nozzle 34, and from the spray hole 38 the corresponding cavity 17 (inner surface of the mold 10, spherical 11) The inner surface and the upper surface 11c). In this way, the spray port 38 functions as an applicator for applying the release lubricant to the molding 10.

In addition, the spraying method of the release lubricant from the spray port 38 may be a method using a pump (for example, a plunger pump or the like), or may be a method using a two-fluid mixture (mixing of a release lubricant and air) using compressed air. good. The spray port 38 sprays a release lubricant, for example to form the spray pattern 39 of a holocone. The spray pattern 39 on the holocon is formed to face downward, for example, from a position surrounded by the corresponding molding 10. Angle (theta) (angle with respect to a perpendicular | vertical line) of the area | region in which this holographic spray pattern 39 is formed is suitably set by setting the shape of the spray opening 38. As shown in FIG.

Moreover, you may attach the annular board arrange | positioned coaxially with the nozzle 34 in the vicinity of the spray opening 38 among the outer peripheral surfaces of the nozzle 34. When this annular plate is provided, the annular plate can prevent the release lubricant from scattering excessively to unintended locations.

In this embodiment, about the 1st area | region 41 set in the rectangle 11 side among the inner surfaces of the molding 10, and the 2nd area | region 42 set in the place farther from the rectangle 11 than this 1st area | region 41 The coating device 5 applies the release lubricant so that the film thickness T1 of the release lubricant in the first region 41 is larger than the film thickness T2 (including zero) of the release lubricant in the second region 42. It is configured to.

Specifically, the nozzle 34 is inserted into the cavity 17 by the operation of the displacement mechanism 32 when the product 101 is not filled in the cavity 17 as the middle of the manufacture of the glass bottle 103. And the spray hole 38 of this nozzle 34 sprays a release lubricant to the 1st area | region 41 at least, and the film thickness T1 of the release lubricant of the 1st area | region 41 becomes the release of the 2nd area | region 42. FIG. It becomes larger than the film thickness T2 (including zero) of a lubricant. For example, the flow rate from the spray port 38 is the same, and the spray time of the release lubricant to the first region 41 is longer than the spray time of the release lubricant to the second region 42 such a film. The relationship between the thicknesses T1 and T2 can be realized.

The spraying amount (liquid pressure) per unit time of the release lubricant from the nozzle 34 becomes relatively small in the region on the second region 42 side in the first region 41, and on the spherical 11 side in the first region 41. The area may be relatively large.

The nozzle 34 may spray the release lubricant in the stationary state in the cavity 17, or may spray the release lubricant while being moved along the longitudinal direction L1 by the displacement mechanism 32. Preferably, the central axis of the nozzle 34 is arranged to coincide with the central axis of the cavity 17.

The 1st area | region 41 is set in the whole area of the area | region extended from the position 18 corresponding to the set blow line in the molding 10 among the inner surfaces of the molding 10 to the sphere 11 side. For example, the 1st area | region 41 is set over the whole area | region from the position 18 corresponding to the set blow line among the inner surface of the shaping | molding 10 to the one end 10e of the spherical shape 11 side.

In addition, the boundary 19 (the point corresponding to the position 18 corresponding to a set blow line in this embodiment) of the 1st area | region 41 and the 2nd area | region 42 is spherical ( It is preferable to set at the position of 30%-80% of the total length A1 of the inner surface of the shaping | molding 10 in the longitudinal direction L1 from the one end 10e of the 11) side. That is, the position of the boundary 19 between the first region 41 and the second region 42 may be a position of 30% of the total length A1 from one end 10e of the inner surface of the molding 10. The position of 80% of the total length A1 may be sufficient from the one end 10e of the inner surface of 10), and the position between these positions may be sufficient.

By setting the boundary 19 between the first area 41 and the second area 42 to a position of 30% or more of the entire length A1 from one end 10e on the side of the rectangle 11 of the inner surface of the molding 10. When the product 101 is filled in the cavity 17, the product 101 can be more reliably received in the first region 41, that is, the region in which the release lubricant is sufficiently applied. Thereby, the slipperiness | lubricacy of the product 101 with respect to the molding 10 can be ensured enough. Moreover, the position 19 of the 1st area 41 and the 2nd area | region 42 is 80% or less of the total length A1 from the one end 10e of the spherical shape 11 side among the inner surfaces of the molding 10. By setting to, the release lubricant can be more reliably prevented from being applied to the upper end of the molding 10, that is, the bottle bottom side forming portion 10c. More preferably, the boundary 19 between the first region 41 and the second region 42 is 40% to the total length A1 from one end 10e of the spherical 11 side of the inner surface of the molding 10. It is set at the position of 70%.

The second area 42 is an area excluding the first area 41 of the inner surface of the molding 10. The second region 42 includes the bottle bottom side forming portion 10c in the molding 10. In this embodiment, all of the 2nd area | regions 42 are formed in the whole circumferential direction of the inner surface of the shaping | molding 10.

The film thickness T1 of the release lubricant in the first region 41 is set so that the release lubricant does not fall in the first region 41. In addition, the film thickness T2 of the mold release lubricant in the second region 42 may be less than the film thickness T1 of the mold release lubricant. In this embodiment, the film thickness T2 of a release lubricant is set to zero. That is, a release lubricant is not apply | coated to the 2nd area | region 42 containing the bottle bottom side formation part 10c.

The spray hole 38 of the nozzle 34 is the boundary 19 side (upper side) of the 1st area | region 41 and the 2nd area | region 42, and the one end 10e of the spherical shape 11 side among the inner surfaces of the molding 10. The control part 31 is controlled so that spraying of a mold release lubricant may be started in any one position of () (lower side), and the mold release lubricant may be sprayed while displacing toward the other side.

Next, the process by which the coating device 5 apply | coats a release lubricant is demonstrated more concretely. In addition, below (1) the application apparatus 5 apply | releases a release lubricant to the inner surface of the molding 10, but does not apply a release lubricant to the inner surface of the spherical shape 11, and (2) the application apparatus 5 is Two cases in which the release lubricant is applied to the inner surface of the mold 10 and the inner surface and the upper surface 11c of the sphere 11 will be described. In the case of (2), five patterns (patterns A, B, C, D, and E) will be described.

(1) A case in which the coating device 5 applies a release lubricant to the inner surface of the mold 10 but does not apply a release lubricant to the inner surface of the mold 11 will be described with reference to FIG. 4. In this case, the sphere 11 may or may not be present.

In the case of (1), the pair of split molds 10a and 10b of the mold 10 may be initially closed or may be open, but is preferably closed. In addition, the spray start of the release lubricant by the nozzle 34 is preferably after the spray port 38 is inserted into the cavity 17. And spraying of the release lubricant from the spray opening 38 is started by the position of the nozzle 34 set by the control part 31, the moving speed, and the hydraulic pressure of a release lubricant, and a release lubricant is apply | coated in predetermined location. The spray hole 38 of the nozzle 34 sprays the release lubricant from the boundary 19 to the one end 10e on the spherical 11 side among the inner surfaces of the mold 10 and then sprays the release lubricant onto the spherical 11. The spraying of the release lubricant is stopped without work. At this time, the nozzle 34 may spray the release lubricant while descending toward the sphere 11 from the boundary 19 side, and release the lubricant while rising from the one end 10e of the inner surface of the mold 10 toward the boundary 19 side. You may spray it.

In the case of the pattern (1), it is possible to prevent the release lubricant from being applied to the sphere 11.

(2) When the applicator 5 applies a release lubricant to the inner surface of the mold 10 and the inner surface and the upper surface of the sphere 11.

Next, the pattern A of (2) is demonstrated, referring FIG. 5 (A) and FIG. 5 (B).

Referring to Fig. 5 (A), in this pattern A, the pair of split molds 10a and 10b of the molding 10 may be initially closed or may be open, but is preferably closed. In addition, the spray start of the release lubricant by the nozzle 34 is preferably after the spray port 38 is inserted into the cavity 17. And spraying of the release lubricant from the spray opening 38 is started by the position of the nozzle 34 set by the control part 31, the moving speed, and the hydraulic pressure of a release lubricant, and a release lubricant is apply | coated in predetermined location. As shown in FIG. 5 (A), the spray port 38 of the nozzle 34 sprays a releasing lubricant from the boundary 19 to the one end 10e on the spherical 11 side among the inner surfaces of the molding 10. Thereafter, the spray port 38 maintains the spray of the release lubricant, and as shown in FIG. 5 (B), the upper surface of the spherical shape 11 is opened as the pair of split molds 10a and 10b of the molding 10 are opened. A release lubricant is applied to 11c), and as shown by arrow D2A, a space in the sphere 11 is entered and a release lubricant is applied to the inner surface of the sphere 11. Thereafter, the spraying of the release lubricant from the spray port 38 is stopped. In addition, even when the molds 10a and 10b are opened in advance, the nozzle 34 sprays a release lubricant on the sphere 11 in the same manner as described above. In this pattern A, the pair of split molds 10a and 10b are semi-opened when sprayed with the release lubricant to the upper surface 11c of the spherical 11 and are not completely open.

In the case of the pattern A of the said (2), a mold release lubricant can be apply | coated to the shaping | molding 10 and the sphere 11, with the spray state of the mold release lubricant from the spray opening 38 of the nozzle 34 stabilized. Moreover, even if the spherical shape 11 is an elongate shape, a release lubricant can be apply | coated to the whole surface of the spherical shape 11 inner surface more reliably by the spray opening 38 of the nozzle 34. As shown in FIG.

Next, the pattern B of (2) is demonstrated, referring FIG. 6 (A) and FIG. 6 (B).

Referring to Fig. 6A, in this pattern B, the pair of split molds 10a and 10b of the molding 10 may be initially closed or may be open, but is preferably closed. In addition, the spray start of the release lubricant by the nozzle 34 is preferably after the spray port 38 is inserted into the cavity 17. And spraying of the release lubricant from the spray opening 38 is started by the position of the nozzle 34 set by the control part 31, the moving speed, and the hydraulic pressure of a release lubricant, and a release lubricant is apply | coated in predetermined location. As shown in FIG. 6 (A), the spray hole 38 of the nozzle 34 sprays a releasing lubricant from the boundary 19 to the one end 10e on the spherical 11 side among the inner surfaces of the molding 10, and then releases it. Stop spraying of lubricant once. 6 (B), the spray hole 38 of the nozzle 34 enters the space in the sphere 11 as the pair of split molds 10a and 10b of the molding 10 are opened. Subsequently, as shown by arrow D2B, the spray port 38 of the nozzle 34 sprays a release lubricant on the inner surface of the sphere 11 and the upper surface 11c of the sphere 11. Thereafter, the spraying of the release lubricant from the spray port 38 is stopped. In addition, even when the molds 10a and 10b are opened in advance, the nozzle 34 sprays a release lubricant onto the sphere 11 as described above. In addition, in this pattern B, the pair of split molds 10a and 10b are completely open when spraying the release lubricant to the upper surface 11c of the sphere 11.

In the case of the pattern B of the above (2), the spray hole 38 of the nozzle 34 can apply a release lubricant to a wide range of the upper surface 11c of the sphere 11. As a result, the sliding property (easiness of sliding) of the molding 10 and the sphere 11 can be improved more.

Next, the pattern C of (2) is demonstrated, referring FIG. 7 (A), FIG. 7 (B), and FIG. 7 (C).

Referring to Fig. 7A, in this pattern C, the spray hole 38 of the nozzle 34 is spherical while stopping spraying of the release lubricant with a pair of split molds 10a and 10b of the molding 10 open. It enters into the space in (11). Subsequently, as shown in FIG. 7B, the spray port 38 is upwardly displaced toward the second region 42 side as indicated by the arrow D2C while spraying the release lubricant, followed by the inner surface of the sphere 11. The upper surface 11c of the sphere 11 is sprayed. Subsequently, as shown by arrow D2C 'with reference to FIG. 7 (C), the spray hole 38 applies a release lubricant to the inner surface of the molding 10 during which the pair of split molds 10a and 10b are closed. Spray. Thereafter, the spraying of the release lubricant from the spray port 38 is stopped. At this time, when the spraying of the release lubricant from the spray port 38 is completed, the pair of split molds 10a and 10b is closed.

In the case of the pattern C of the above (2), the spray hole 38 of the nozzle 34 may apply a release lubricant to a wide range of the upper surface 11c of the sphere 11. As a result, the sliding property (easiness of sliding) of the molding 10 and the sphere 11 can be improved more. In addition, the release lubricant can be applied to the mold 10 from the spray port 38 by using the time required for the operation in which the mold 10 is closed. Thereby, the loss time (time which cannot form the parison 102) in the shaping | molding 10 by application of a release lubricant can be shortened.

Next, the pattern D of (2) is demonstrated, referring FIG. 8 (A) and FIG. 8 (B).

With reference to FIG. 8 (A), this pattern D starts spraying the release lubricant from the spray opening 38 by the position of the nozzle 34 set by the control part 31, the moving speed, and the hydraulic pressure of a release lubricant, and is predetermined location. A release lubricant is applied to the. The spray opening 38 of the nozzle 34 is first inserted into the sphere 11 as shown in Fig. 8A. And as shown in FIG. 8B, as shown by arrow D2D toward the 2nd area | region 42 side, spraying a release lubricant in the state which the pair of split molds 10a and 10b of the shaping | molding 10 opened. By the upward displacement, the upper surface 11c of the sphere 11 is applied next to the inner surface of the sphere 11. Thereafter, the spraying of the release lubricant from the spray port 38 is stopped once. Subsequently, as shown in FIG. 8 (C), the spray hole 38 applies the inner surface of the mold 10 with a upward displacement as indicated by the arrow D2D after the pair of split molds 10a and 10b are completely closed. do. Thereafter, the spraying of the release lubricant from the spray port 38 is stopped.

In the case of the pattern D of the above (2), the spray hole 38 of the nozzle 34 may apply a release lubricant to a wide range of the upper surface 11c of the sphere 11. As a result, the sliding property (easiness of sliding) of the molding 10 and the sphere 11 can be improved more. In addition, the spray port 38 may apply a release lubricant to the molding 10 in a closed state. Thereby, the spray opening 38 can apply a release lubricant more accurately toward the desired location of the shaping | molding 10.

Next, the pattern E of (2) is demonstrated, referring FIG. 9 (A) and FIG. 9 (B).

Referring to Fig. 9A, in this pattern E, as shown in Fig. 9A, a pair of split molds 10a and 10b are opened in advance. The spray hole 38 of the nozzle 34 is the inner surface of the molding 10 during the operation in which the pair of split molds 10a and 10b in the molding 10 are closed in the middle, as indicated by the arrow D2E. The release lubricant is sprayed from the middle boundary 19 to the one end 10e on the spherical 11 side.

Thereafter, in the pattern E-1, the spray hole 38 maintains the injection of the release lubricant, and as shown by an arrow D2E 'in Fig. 9B, a pair of molds 10a and 10b of the molding 10 are shown. As the) is opened, a release lubricant is applied to the upper surface 11c of the sphere 11, and a mold release lubricant is applied to the inner surface of the sphere 11 by entering a space in the sphere 11. Thereafter, the spraying of the release lubricant from the spray port 38 is stopped.

In addition, in the pattern E-2, after the release lubricant is sprayed on the inner surface of the molding 10 (after the process of FIG. 9 (A)), the spray opening 38 of the nozzle 34 stops spraying of the release lubricant once. . Then, as shown by arrow D2E 'in FIG. 9 (B), the spray hole 38 of the nozzle 34 is spherical 11 as a pair of split molds 10a and 10b of the shaping | molding 10 are opened. Enter the space inside). Subsequently, the spray port 38 ascends and sprays a release lubricant on the inner surface and the upper surface 11c of the sphere 11. Thereafter, the spraying of the release lubricant from the spray port 38 is stopped.

In the case of the pattern E of the above (2), a release lubricant may be applied to the molding 10 from the spray port 38 by using the time required for the operation of closing the molding 10. Thereby, the loss time (time which cannot form the parison 102) in the shaping | molding 10 by application of a release lubricant can be shortened.

As described above, according to the present embodiment, the nozzle 34 of the coating device 5 is formed of the release lubricant to the second region 42 corresponding to the film thickness T1 of the release lubricant to the first region 41. The release lubricant is applied so as to be larger than the film thickness T2 (including zero). According to this structure, the 1st area | region 41 set in the rectangle 11 side is an area | region which rubs and touches the product 101 at the time of the filling of the product 101 in the inner surface of the molding 10, and slipperiness | lubricacy becomes necessary. Therefore, it is essential that a release lubricant is applied. On the other hand, since the second region 42 is set at a point farther from the rectangle 11 than the first region 41, the second region 42 does not contact the product 101 when the product 101 is charged. For this reason, in the 2nd area | region 42, the need to apply a release lubricant in order to ensure the slipperiness | lubricacy with the product 101 falls. Like this configuration, the thickness at the bottom of the bottle is set by setting the film thickness T2 of the release lubricant in the second region 42 to be smaller than the film thickness T1 of the release lubricant in the first region 41. The change of can be made small.

Moreover, according to this embodiment, it is comprised so that a mold release lubricant may not be apply | coated to the bottle bottom side formation part 10c. According to this structure, since the fall of the adhesiveness of the molding 10 and the parison 102 in the bottle bottom side formation part 10c is suppressed, the change of the thickness of a bottle bottom part can be made small.

In addition, according to this embodiment, the boundary 19 of the 1st area | region 41 and the 2nd area | region 42 is the inner surface of the molding 10 from the one end 10e of the spherical shape 11 side among the inner surfaces of the molding 10. Is set at a position of 30% to 80% of the entire length A1. According to this structure, by setting the boundary 19 more than the said lower limit, a mold release lubricant can be apply | coated more reliably to the location which needs to apply | coat a mold release lubricant enough in the molding 10 from a viewpoint of a slipperiness improvement. In addition, by setting the position of the boundary 19 to the upper limit value or less, it is possible to reliably reduce the thickness change of the bottom portion of the bottle.

Moreover, according to this embodiment, the 1st area | region 41 is an area | region from the position 18 corresponding to the set blow line in the molding 10 to the one end 10e of the rectangle 11 side of the molding 10. Is set. According to this structure, when compressed air presses the product 101 to the sphere 11 side in a set blow process, the product 101 can be reliably supplied to the location of the inner surface of the molding 10 to which the product 101 is rubbed and spread. have. On the other hand, in the set blow process, the film thickness T2 of the releasing lubricant at the place where the possibility of being rubbed and rubbed by the product 101 among the inner surfaces of the molding 10 is set to zero or smaller than the film thickness T1. Can be. Thereby, the change of the thickness in the lower part of a bottle can be made smaller.

Moreover, according to this embodiment, the control part 31 can control actual release lubricant film thickness T1, T2 by controlling the nozzle 34. As shown in FIG. In addition, the control part 31 can supply a release lubricant from the spray port 38 toward the molding 10, changing the position of the spray hole 38 of the nozzle 34 by operating the displacement mechanism 32. FIG. Thereby, the film thickness T1, T2 of the actual mold release lubricant in each part of the inner surface of the shaping | molding 10 can be controlled.

In addition, according to the present embodiment, the release lubricant 38 is displaced toward the spherical 11 side from the boundary 19 side of the first region 41 and the second region 42 toward the spherical 11 side. When spraying, adhesion of unnecessary release lubricant in the second region 42 can be prevented more reliably. In addition, when the spray hole 38 of the nozzle 34 is sprayed with the release lubricant while displacing from the spherical 11 side toward the boundary 19 side, the boundary between the first region 41 and the second region 42 ( In 19), a clearer film thickness difference T1-T2 is easily realized.

<2nd embodiment>

10 is a schematic view of the glass bottle manufacturing apparatus 1A according to the second embodiment of the present invention. FIG. 11: is a schematic diagram which shows the coating apparatus 5 and the molding 10A of 1 A of glass bottle manufacturing apparatuses. The glass bottle manufacturing apparatus 1A (hereinafter also referred to simply as the manufacturing apparatus 1A) is used to manufacture the glass bottle 103A. The manufacturing apparatus 1A manufactures glass bottle 103A by a press & blow process or a narrow neck press & blow process.

In addition, below, the structure different from 1st Embodiment is mainly demonstrated, and the same code | symbol may be attached | subjected to the structure similar to 1st Embodiment, and detailed description may be abbreviate | omitted.

With reference to FIG. 10 and FIG. 11, the manufacturing apparatus 1A has the molding part 2A and the application | coating device 5.

The molding portion 2A is used to manufacture the parison 102A as the manufacturing intermediate of the glass bottle 103A. The product 101A is supplied to the molding part 2A, and the molding part 2A molds the product 101A into the parison 102A.

The molding part 2A has a molding 10A, a mold 11A, a baffle 13A, and a plunger 22A as a molding for press molding.

In the mold 10A, the coating layer is formed on the inner surface of the mold 10A as a region for forming the product 101A into a parison by carbon coating or the like. This inner surface is also regularly coated with a release lubricant.

Molding 10A is used to mold a portion of the glass bottle 103A other than the bent portion 101aA. The inner surface of the molding 10A forms a cavity 17A. The mold 10A has a pair of split molds 10aA and 10bA facing each other in a direction orthogonal to the longitudinal direction L1. The cavity 17A is formed by combining these split molds 10aA and 10bA. In this specification, the surface which forms the cavity 17 among the surfaces of the molding 10A is called the inner surface of the molding 10A.

In the present embodiment, the cavity 17A has a shape in which a portion that is wider in diameter and a narrower portion are alternately arranged along the longitudinal direction L1. More specifically, the cavity 17A is adjacent to the sphere 11A and away from the sphere 11A along the longitudinal direction L1 from the first portion 61 having a relatively narrow diameter. The second portion 62 having a larger diameter and then narrowing in diameter, and a third portion having a diameter approximately equal to the diameter of the first portion 61 subsequent to the second portion 62. Has 63. And the upper end of the molding 10A includes the bottle bottom side forming part 10cA. The lower end 10dA of the molding 10A is formed in a recessed shape upward, and a spherical shape 11A is disposed in the recessed portion.

The spherical shape 11A is used to shape the bent portion 101aA of the glass bottle 103A. The sphere 11A is fitted to the lower end 10dA of the mold 10A. The upper surface 11cA of the spherical shape 11A faces the lower surface of the lower end 10dA of the molding 10A. The plunger 22A protruding from the rectangle 11A blocks the lower end 10dA of the rectangle 10A. The sphere 11A has a pair of split molds 11aA and 11bA facing each other in a direction orthogonal to the longitudinal direction L1, and these split molds 11aA and 11bA are combined with each other. Spiral grooves or irregularities are formed on the inner surface of the sphere 11A.

The split molds 10aA and 10bA are suitably switched to an open state separated from each other and a closed state closed from each other by an open / close mechanism not shown. Similarly, the split molds 11aA and 11bA are suitably switched to an open state separated from each other and a closed state closed from each other by an opening / closing mechanism (not shown).

The plunger 22A is arrange | positioned so that it may be enclosed by 11 A of rectangles, and is comprised so that displacement is possible in the longitudinal direction L1 by the cylinder apparatus etc. which are not shown in figure. The plunger 22A has a conical portion whose tip is formed in a hemispherical shape, and can be displaced between the state which has advanced into the mold 10A and the state where it has been evacuated.

Moreover, 13A of baffles are provided, and this baffle 13A closes the upper end of the molding 10A.

The main point of the shaping | molding process by the manufacturing apparatus 1A which has the said structure is demonstrated below. In the molding step, as shown in Fig. 12A, the product 101A is filled in the cavity 17A of the molding 10A. The product 101A is then rubbed and touched on the inner surface of the narrow first portion 61 of the cavity 17A and is received by the plunger 22A. Thereafter, as shown in FIG. 12B, a baffle 13A is attached to the molding 10A.

Subsequently, the plunger 22A is extruded toward the baffle 13A side and the product 101A is pressed between the molding 10A and the plunger 22A. As a result, the whole product 101A is pressed against the inner surface of the molding 10A, and a bend 101aA is formed, and the product 101A becomes parison 102A.

In the above process with reference to FIGS. 10 and 11, a release lubricant is regularly applied to the inner surface of the molding 10A in order to secure the sliding property with the product 101A and the release property with the parison 102A. In order to apply this mold release lubricant, the coating device 5 is used.

The displacement mechanism 32 of the coating device 5 is configured to allow the nozzle 34 to enter and exit the cavity 17A of the molding portion 2A. More preferably, the displacement mechanism 32 is comprised so that the nozzle 34 can go in and out about the cavity 17A of 2 A of shaping | molding parts, when 2 A of shaping parts are provided. Moreover, the displacement mechanism 32 can displace the nozzle 34 also with respect to the sphere 11A, and also about the inner surface and the upper surface 11cA of any rectangle 11A even when a plurality of spheres 11A are provided. Can be sprayed. Thereby, a release lubricant can be reliably apply | coated to the whole surface of 11 A of spherical surfaces even if 11 A of spherical shapes are elongate.

The nozzle 34 may spray the release lubricant in the stationary state in the cavity 17A, or may spray the release lubricant while moving along the longitudinal direction L1 by the displacement mechanism 32. Preferably, the central axis of the nozzle 34 is arranged to coincide with the central axis of the cavity 17A.

In the present embodiment, the first region 41A set on the spherical 11A side of the inner surface of the molding 10A and the second region 42A set at a location farther from the rectangle 10A than the first region 41A. The coating device 5 applies the release lubricant so that the film thickness T1A of the release lubricant of the first region 41A becomes larger than the film thickness T2A (including zero) of the release lubricant of the second region 42A. It is configured to.

Specifically, the nozzle 34 is inserted into the cavity 17A by the operation of the displacement mechanism 32 when the product 101A is not filled in the cavity 17A as the middle of the manufacture of the glass bottle 103A. Then, the nozzle 34 sprays the release lubricant to at least the first region 41A so that the film thickness T1A of the release lubricant of the first region 41A becomes the film thickness T2A of the release lubricant of the second region 42A. Greater than) (including zero). For example, the flow rate from the coating device 5 is the same, and the spray time of the release lubricant to the first region 41A is longer than the spray time of the release lubricant to the second region 42A. The relationship between the thicknesses T1A and T2A can be realized.

41 A of 1st area | regions are set across the narrow 1st part 61 from the end 10eA of the spherical shape 11A side among the inner surfaces of the molding 10A. Thus, 41 A of 1st area | regions contain the area | region which the product 101A rubs and touches when the product 101A is filled in the molding 10A for press molding.

The second area 42A is an area excluding the first area 41A from the inner surface of the molding 10A. 42 A of 2nd area | regions include the bottle bottom side formation part 10cA in the molding 10A. In the present embodiment, both the first region 41A and the second region 42A are formed in the entire circumferential direction of the inner surface of the molding 10A.

The boundary 19a between the first region 41A and the second region 42A is formed by the molding 10A in the longitudinal direction L1 from one end 10eA on the spherical 11aA side of the inner surface of the molding 10A. It is preferable to set in 30 to 80% of the total length (A1A) of the inner surface of (). That is, the position of the boundary 19A between the first region 41A and the second region 42A may be 30% of the total length A1A from one end 10eA of the inner surface of the molding 10A. The position of 80% of the total length A1A from the one end 10eA of the inner surface of 10A) may be sufficient, and the position between these positions may be sufficient.

The film thickness T1A of the release lubricant in the first region 41A is set to such an extent that the release lubricant does not fall in the first region 41A. In addition, the film thickness T2A of the mold release lubricant in the second region 42A may be less than the film thickness T1A of the mold release lubricant. In this embodiment, the film thickness T2A of a release lubricant is set to zero. That is, a release lubricant is not apply | coated to 42 A of 2nd area | regions containing bottle bottom side formation part 10cA.

Since the process of spraying the release lubricant to the shaping | molding part 2A by the coating device 5 is the same as that of 1st Embodiment, detailed description is abbreviate | omitted.

As mentioned above, according to 2nd Embodiment, the change of the thickness in the lower part of a bottle can be made small similarly to 1st Embodiment.

Moreover, according to 2nd Embodiment, when the product 101A is filled in the molding 10A, the 1st part 61 which touches while this product 101A is rubbed is prescribed | regulated as 41 A of 1st area | regions. Since the product 101A is rubbed, sufficient release lubricant can be supplied to this first region 41A where slipperiness is required.

As mentioned above, embodiment of this invention was described. This invention is not limited to the said embodiment, A various change is possible as long as it is described in a claim.

In embodiment mentioned above, the form which apply | coats a release lubricant using the coating device 5 was demonstrated to the example. But it doesn't have to be like this. For example, a release lubricant may be applied by hand by a worker. In addition, the coating device 5 may apply a release lubricant using other coating members, such as a brush, instead of the nozzle 34.

(Example)

<Evaluation of Uniformity of Glass Bottle Thickness>

As an Example and a comparative example, the glass bottle shown in FIG. 13 was produced. The glass bottle has a height of about 100 mm except for the bend. The body portion continues to increase in diameter from the neck toward the bottom and then extends cylindrically to the bottom with a substantially constant diameter. The glass bottle was produced by the glass bottle manufacturing apparatus of the structure similar to the structure shown in 1st Embodiment. That is, a glass bottle was produced by shape | molding a parison by blow molding and shape | molding (blow & blow molding) this parison into a glass bottle by blow molding after that.

In preparation of an Example, the glass bottle (reference glass bottle) was produced twice continuously with this glass bottle manufacturing apparatus, before apply | coating a mold release lubricant to the shaping | molding of a glass bottle manufacturing apparatus. Then, it was the area | region of the half of the inside surface of the spherical body and upper surface of a glass bottle manufacturing apparatus, and half of a cavity longitudinal direction among the inner surfaces of a molding, and the release lubricant was apply | coated to the area | region on the spherical side. And the Example (glass bottle) was produced 5 times (5 rounds) continuously by the glass bottle manufacturing apparatus to which the release lubricant was apply | coated. The said process was performed 10 sets. During the set, the glass bottle was repeated until the release lubricant was no longer effective.

Preparation of the comparative example (glass bottle) was performed similarly to the Example except the point which apply | coated the mold release lubricant to the whole inner surface of a molding, when apply | coating a mold release lubricant.

About the thickness measurement of a glass bottle, the average value which measured the glass thickness in each height position of x (mm) from the ground plane of each glass bottle by 8 points every 45 degrees of circumferential directions for every height position was computed.

FIG. 14: shows the average value of the glass thickness in each height position of x (mm) from the ground plane of a bottle with respect to the reference glass bottle of an Example, and the reference glass bottle of a comparative example. Further, x = 0 (ground plane), 8, 12, 20, 30, 40, 50, 60, 70, 79.5, 90, 100 and the bottom surface. Also, the bottom surface refers to the most recessed position of the floor which is recessed upward.

As is apparent from FIG. 14, at each of the height positions of x (mm) from the ground plane of the bottle for each of the two types (each set of 10) of the reference glass bottles and the two examples (each set of 10) of the comparative example, respectively. The average value of the glass thickness in it can be said to correspond substantially.

FIG. 15A is a diagram in which the difference between the reference glass bottles of the first and fifth rounds and the reference glass bottles of the comparative examples is plotted against the average value of the glass thicknesses at the height positions of x (mm) from the ground plane of the bottle. FIG. . Fig. 15 (B) shows the difference (thickness difference) between each of the examples of round 1 to round 5 and the reference glass bottle of the example with respect to the average value of the glass thickness in each of the height positions of x (mm) from the ground plane of the bottle. Plotted.

In FIG. 15A, the horizontal axis represents a comparative example of the y (y = 1 to 5) round, and the vertical axis represents the thickness difference. Similarly, in Fig. 15B, the horizontal axis represents the embodiment of the y (y = 1 to 5) round, and the vertical axis represents the thickness difference.

With reference to FIGS. 15A and 15B, the closer the thickness difference is to zero, the higher the uniformity of the thickness before and after applying the release lubricant. In the comparative example, the thickness difference is remarkably large especially at the height position of the ground plane (0 mm) and the height position of 8 (mm). In the height position of a ground plane (0 mm), the Example is returning to near the state before release lubricant application 1 round earlier than a comparative example. In addition, in the height position of 8 (mm), in the comparative example, the thickness difference becomes large at about 0.4 (mm) at maximum, and in the Example, even if the thickness difference is the maximum, it is set as a small value of less than about 0.1 (mm). That is, at the height position of 8 (mm), the thickness difference of an Example becomes the extremely small value less than 1/4 of the thickness difference of a comparative example. Thus, the embodiment can prevent the thickness of the glass bottle from becoming an out-of-standard value in that the change in the thickness of the glass bottle is small, in particular, the change in the thickness in the lower portion of the glass bottle is small. It is obvious that it contributes to the improvement.

(Industrial availability)

INDUSTRIAL APPLICABILITY The present invention can be widely applied as a release lubricant coating device for molding for glass bottle production, a release lubricant coating method for molding for glass bottle production, a glass bottle manufacturing device, and a glass bottle manufacturing method.

1, 1A: glass bottle manufacturing apparatus 5: coating device
10, 10A: molding 10a, 10b, 10aA, 10bA: parting
10c, 10cA: bottle bottom forming part
10e, 10eA: One end of the spherical side of the inner surface of the molding
11, 11A: spherical 11c, 11cA: spherical top
18: position corresponding to the set blow line
19, 19A: Boundary 31: Control Unit (Control Unit)
32: displacement mechanism 38: spray hole (coating unit)
41, 41A: first region 42, 42A: second region
101, 101A: product A1, A1A: overall length of molding
T1, T1A: release lubricant film thickness of the first region
T2, T2A: release lubricant film thickness in the second region

Claims (10)

As a release lubricant application device to the molding for glass bottle manufacture,
An applicator for spraying a releasing lubricant by molding;
A displacement mechanism that allows the applicator to enter and exit the mold;
A control unit for controlling the operation of the displacement mechanism and the supply of the release lubricant from the application unit,
The displacement mechanism is configured to displace the applicator to apply the release lubricant to the inner surface of the mold at a position where the applicator has entered the cavity of the mold,
The said coating part is a mold release of a said 1st area regarding the 1st area | region set in the spherical side among the inner surfaces of the said molding, and the 2nd area | region set in the place farther from the said 1st area | region in the position which entered the said cavity of the said molding. Is configured to apply the release lubricant such that the lubricant film thickness is greater than the release lubricant film thickness (including zero) of the second region,
The control unit is configured to spray the release lubricant from the applicator by linearly displacing the applicator along the direction in which the first region and the second region extend with respect to the molding by operating the displacement mechanism,
The coating device is configured to apply the release lubricant to the blow molding molding as the molding.
The said 1st area | region contains the area | region extended to the said spherical side from the position corresponding to the set blow line in the said blow molding shaping | molding, The mold release lubricant application apparatus to the shaping | molding for glass bottle manufacturing characterized by the above-mentioned. As a release lubricant application device to the molding for glass bottle manufacture,
An applicator for spraying a releasing lubricant by molding;
A displacement mechanism that allows the applicator to enter and exit the mold;
A control unit for controlling the operation of the displacement mechanism and the supply of the release lubricant from the application unit,
The displacement mechanism is configured to displace the applicator to apply the release lubricant to the inner surface of the mold at a position where the applicator has entered the cavity of the mold,
The release part of the said 1st area | region with respect to the 1st area | region set in the spherical side of the inside of the said molding, and the 2nd area | region set in the place farther from the said 1st area | region than the said 1st area | region in the position which entered the said cavity of the said mold | tool. Is configured to apply the release lubricant such that the film thickness is greater than the release lubricant film thickness of the second region (including zero),
The control unit is configured to spray the release lubricant from the applicator by linearly displacing the applicator along the direction in which the first region and the second region extend with respect to the molding by operating the displacement mechanism,
The coating device is configured to apply the release lubricant to the molding for press molding as the molding.
The area | region which the product rubs and touches is set as said 1st area | region when the product among the said molding for press molding was filled into the said molding for press molding,
The control unit sprays the release lubricant from the coating unit toward the first region, wherein the release lubricant applying device to the molding for producing glass bottles. The method according to claim 1 or 2,
The control unit is configured to control the operation of the displacement mechanism and the spray amount of the release lubricant from the applicator, and the control of the spray amount to each region of the inner surface of the mold is controlled by the spray amount itself from the applicator and the spray amount. Is controlled by the rising and falling speed of the applicator in a fixed state,
The said coating part starts the spraying of the said release lubricant in the position of the boundary side of the said 1st area | region and the said 2nd area | region, and the one end of the said spherical side among the said molding inner surfaces, and displaces toward the other side, the said release agent A release lubricant applying device to a molding for manufacturing a glass bottle, which is controlled by the control unit to spray a lubricant. The method of claim 3, wherein
The applicator sprays the release lubricant from the boundary between the first region and the second region to one end of the spherical side of the molding inner surface, and then stops spraying the release lubricant without spraying the release lubricant into the sphere. A release lubricant applying device to a molding for producing a glass bottle, which is configured to be configured to The method of claim 3, wherein
The applicator sprays the release lubricant from a boundary between the first region and the second region to one end of the spherical side of the molding inner surface, and then opens a pair of split molds of the molding while maintaining spraying of the release lubricant. And spraying the upper surface of the spherical body, and entering the space in the spherical body and spraying the spherical inner surface. The method of claim 3, wherein
The applicator sprays the release lubricant from the boundary between the first region and the second region to one end of the spherical side of the molding inner surface, and then stops spraying of the release lubricant once, and then the pair of moldings The release lubricant applying device to the molding for glass bottle manufacture, characterized in that it is configured to enter the space in the sphere and spray the upper surface of the sphere, followed by the inner surface of the sphere as the split mold is opened. With respect to the first region set on the spherical side of the inner surface of the molding and the second region set at a point farther from the sphere than the first region, the release lubricant film thickness of the first region is the release lubricant film thickness of the second region (zero The release lubricant application method to the molding for glass bottle manufacturing, characterized by apply | coating a release lubricant so that it may become larger. The mold release lubricant application apparatus to the molding for glass bottle manufacture of any one of Claims 1-6 is provided, The glass bottle manufacturing apparatus characterized by the above-mentioned. With respect to the first region set on the spherical side of the inner surface of the molding and the second region set at a location farther from the sphere than the first region, the release lubricant film thickness of the first region is the release lubricant film thickness of the second region (zero And a release lubricant applying step of applying the release lubricant so as to be larger than),
And a molding step of molding the parison using the molding. As a mold release lubricant application device to the molding for glass bottle manufacture of any one of Claims 1-6,
The displacement mechanism comprises a multi-axis robot having a plurality of axes,
And the coating unit is configured to be inserted into each of the cavities of the plurality of molds arranged at different positions by the operation of the multi-axis robot.

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