JP4815244B2 - Bottle inspection machine and bottle making equipment - Google Patents

Description

The present invention, for bottles central portion of the bottom surface of the bottle bottom surrounds the outer periphery of the recess the recess inwardly, and bottle inspection machine used to test the smooth degree of the bottle bottom, the bottle inspection machine The present invention relates to a used bottle making apparatus.

Conventionally, glass bottles, the bottle making machine which is divided into a plurality of sections, the same vial is prepared simultaneously using individual molds per section. The glass bottles produced one after another in each section are transported to the final packaging process by the transport system. In the manufactured glass bottles , there may be defects due to mold defects or bottle machine operating conditions. In the inspection process during transportation, the presence or absence of defects is inspected for multiple defect types. The

As an inspection apparatus installed in the inspection process, an inspection apparatus having a plurality of inspection stations arranged in a circle around the star wheel is employed (for example, see Patent Document 1). The star wheel has a plurality of notches on the peripheral surface, and the glass bottles introduced one after another into each notch are sequentially fed to each inspection station by intermittent rotation of the star wheel. Each inspection station is individually provided with an inspection machine, and each inspection machine inspects whether or not there is a defect with respect to at least one type of defect item. Glass bottles determined to have defects as a result of inspection are collected as defective products.

JP 2000-55831 A

Further, a glass bottle judged as a non-defective product by the inspection apparatus having the above configuration is appropriately extracted, and the smoothness of the bottom of the glass bottle is inspected. The extracted glass bottle is placed on a support substrate having a smooth surface, a gap gauge is inserted over the entire circumference of the bottom portion, and the presence or absence of the gap is determined, thereby inspecting the smoothness of the bottom portion.

However, the above-described manual inspection methods have problems in that work efficiency is poor, inspection accuracy is low, and labor costs increase. In addition, since all the manufactured glass bottles are not inspected, there is a problem that the inspection reliability is lacking.

The present invention has been made paying attention to the above-mentioned problems, and a bottle inspection machine capable of inspecting the smoothness of the bottom portion efficiently and with high accuracy without troublesome the total number of bottles manufactured, and this An object of the present invention is to provide a bottle making apparatus using a bottle inspection machine.

In the bottle inspection machine according to the present invention, the smoothness of the bottom of the bottle is determined by the smoothness of the outer periphery surrounding the recess, with the center of the bottom of the bottle recessed inward and the bottle surrounding the recess surrounded by the outer periphery. It is to be inspected. It has a support substrate for supporting the bottle bottom of the introduced bottle to be inspected on the support surface of the surface, and the support surface is formed with a smooth surface and at the position where the bottle is placed, Two holes communicating with a space formed between the support surface and the bottom surface of the bottle placed on the support surface are formed. One hole is connected to an air suction device for reducing the internal pressure by deriving air from the space, and the other hole is provided with pressure detecting means for detecting the internal pressure in the space after the air is derived. It is connected, and the degree of smoothness of the outer peripheral portion surrounding the depression at the bottom of the bottle is determined by comparing the detected value of the internal pressure by the pressure detecting means with a predetermined threshold value in the determining device .

In the above-described configuration of the present invention, the “ bottle ” includes various bottles such as glass, synthetic resin, metal, and ceramic as long as the center portion of the bottom surface is recessed inward. The “pressure detecting means” detects the internal pressure in the space formed between the support surface of the support substrate and the bottom surface of the bottle placed on the support surface. The thing of a structure can be used. Further, the “discriminating device” can be realized by a dedicated hardware circuit, but can also be realized by a programmed computer. If a plurality of threshold values are set, the degree of smoothness can be determined.

In order to inspect the smoothness of the bottle bottom by the bottle inspection machine of the present invention, first, a bottle is introduced on the support surface of the support substrate, and a recessed portion in the center of the bottom surface is formed on the support surface. It is mounted so as to include the openings of the two holes. Air in a space formed between the support surface and the bottom surface of the bottle is led out by an air suction device. If the outer peripheral portion surrounding the recess of Bin'nobin bottom smooth, no gap is formed between the outer peripheral portion and the support surface surrounding the recess in the bottom of the bottle, but the inner pressure of the space is sufficiently lowered, Bin'nobin If the outer peripheral portion surrounding the bottom recess is not smooth, a gap is formed between the outer peripheral portion of the bottom of the bottle and the support surface, and the internal pressure of the space does not sufficiently decrease. By detecting the pressure by the pressure detection means, and examined by smoothing degree of the outer peripheral portion surrounding the recess the smoothing degree of Bin'nobin bottom, bottle it is determined whether a defective or non-defective.

According to the present invention, when deriving the air from the space between the supporting surface and the bottle bottom surface of the supporting substrate, since the state in which the bottle and the support surface are in close contact, bottle rattle when detecting the internal pressure of the space This makes it possible to perform a highly accurate and stable inspection.

In a preferred embodiment of the present invention, the air suction device is provided with a filter at an air introduction portion.
According to this embodiment, foreign matters such as bottle fragments taken together with air can be removed by the filter, so that the air introduction part of the air suction device can be prevented from being clogged, and the inspection accuracy can be improved.

In another bottle inspection machine according to the present invention, an air supply device that introduces air into the space and increases the internal pressure is provided instead of an air suction device that reduces the internal pressure by deriving air from the space into the one hole. It is connected.
In this invention, air is introduced into the space by the air supply device to increase the internal pressure, but if the smoothness of the outer peripheral portion surrounding the bottle bottom recess is high, there is no gap and the internal pressure is sufficient. However, if the degree of smoothness is low, a gap is generated and the internal pressure cannot be sufficiently increased. The internal pressure in the space after the air is introduced is detected, and the smoothness of the bottom of the bottle is inspected by checking the air leakage based on the internal pressure detection value.

The bottle making apparatus according to the present invention includes a bottle making machine that is divided into a plurality of sections and that simultaneously manufactures the same bottle for each section, and a plurality of inspections that are provided on the downstream side of the bottle making machine to inspect for bottle defects. And an inspection apparatus having a station. A bottle inspection machine according to any of the embodiments described above is provided at any of the inspection stations. Furthermore, in a preferred embodiment of the present invention, the plurality of inspection stations are the outer periphery of a star wheel having a plurality of notches into which bottles are introduced, and each notch is stopped when the star wheel is intermittently driven. It is provided at an angular position.

According to the bottle making apparatus described above, the smoothness level of the outer periphery surrounding the bottom of the bottle bottom is inspected for smoothness by performing the inspection on the conventional inspection line for inspecting all manufactured bottles for defects. 100% inspection is possible, improving inspection efficiency.

According to the invention, the bottle central portion of the bottom surface of the bottle bottom surrounds the outer periphery of the recess the recess inwardly, the inspection of the smooth degree of the bottle bottom, without troubling human intervention, bottles produced The inspection efficiency and inspection accuracy can be improved.

FIG. 1 shows a schematic configuration of a production line in a bottle factory where a bottle inspection machine 1 of the present invention is introduced.
The bottle production line in the illustrated example includes a bottle making machine 5, a carrying system 6 for carrying bottles (an example of containers) G successively produced by the bottle making machine 5, and a carrying system on the downstream side of the bottle making machine 5. 6 and an inspection device 7 and 70 for inspecting the bottle G for defects. The bottle making machine 5 is divided into a plurality of sections S1 to SN, and each section S1 to SN is individually provided with a molding die for molding the same bottle. The same bottle G is produced at the same time. In addition, although a shaping | molding die contains a rough type | mold and a finishing type | mold, here, both types are only named "molding die" generically.

  In each of the sections S1 to SN, a lump of molten glass called “gob” is sequentially supplied at an appropriate timing. The bottles molded by the molds of the sections S1 to SN are sent out to the first transport conveyor 6a of the transport system 6. The bottle has a shape in which a central portion of the outer surface of the bottle bottom is recessed inward, and a model number unique to each mold is attached to the bottle bottom as a code representing a manufactured section.

  The 1st conveyance conveyor 6a conveys the bottle manufactured by each section S1-SN of the bottle making machine 5 to the 2nd conveyance conveyor 6b in the state arranged in a line. The 2nd conveyance conveyor 6b organizes the bottle of a column in a row, and conveys it to the 3rd conveyance conveyor 6c. In addition, the bottle cooling device (not shown) is provided in the middle of the 2nd conveyance conveyor 6b. The third conveyor 6c organizes the bottles in a row in a column and conveys them to the final boxing device 8. In the middle of the third conveyor 6c, at least one (two in this embodiment) inspection devices 7 and 70 for introducing and inspecting bottles one after another are provided. In this embodiment, two inspection devices 7 and 70 are provided in series so that each inspection device 7 and 70 performs an individual inspection. However, the present invention is not limited to this, and a plurality of inspection devices are provided. It can also be provided in parallel so that each inspection apparatus can perform the same inspection.

FIG. 2 shows one inspection apparatus 7 provided with a bottle inspection machine (an example of a container inspection machine) 1 of the present invention.
The inspection device 7 in the illustrated example includes a star wheel 11 having a notch 10 at an equiangular position on the peripheral surface, and a progressive mechanism 12 that rotates the star wheel 11 intermittently at an angle between the notches 10 and 10. Among the five inspection stations A to E (shown in FIG. 1) set at the positions where the notches 10 of the star wheel 11 are stopped, the bottle according to the present invention is arranged at the first inspection station A. It consists of an inspection machine 1 and other bottle inspection machines (not shown) arranged in the remaining four inspection stations B to E, respectively. A bottle introduction path 9 a is provided on the upstream side of the inspection apparatus 7, and a feeding mechanism 15 for feeding the bottle to each notch portion 10 is provided in the bottle introduction path 9 a. In addition, a rejection table (not shown) for collecting defective bottles having a predetermined defect is arranged on the downstream side of the inspection apparatus 7. In FIG. 1, reference numeral 9 b denotes a bottle lead-out path for guiding the inspected non-defective bottle G to the next inspection apparatus 70.

  At the inspection station A, the bottle inspection machine 1 inspects the smoothness of the bottom of the bottle G. In the other four stations B to E, each bottle inspection machine inspects whether or not a defect exists in at least one type of defect item with the bottle rotated or without the bottle rotated. . In the figure, reference numeral 17 denotes a guide plate for guiding the bottle to the next inspection station.

FIG. 3 shows the configuration of a bottle inspection machine 1 which is an embodiment of the present invention.
The bottle inspection machine 1 in the illustrated example is an inspection target for a bottle G in which the central portion of the bottle bottom is recessed inward. In the bottle G of the illustrated example, the central portion of the outer surface of the bottle bottom is recessed inward, and the outer peripheral portion b surrounds the recess a. The smoothness of the outer peripheral part b of the bottle bottom is inspected by the bottle inspection machine 1. This bottle inspection machine 1 has a disk-like support substrate 2 on which the bottle G is placed, and a vacuum device (an example of an air suction device) 3 and a pressure sensor (of a pressure detection means) below the support substrate 2. An example) 4 is arranged. The internal pressure value detected by the pressure sensor 4 is taken into the discrimination device 14 and the smoothness of the bottle bottom is discriminated.

As shown in FIG. 4, the support substrate 2 has a smooth support surface 20 that supports the bottom of the bottle G. The support substrate 2 is placed on the support surface 20 and the support surface 20 at a position where the bottle G is placed. Two holes 21 and 22 communicating with the space S formed between the bottom of the bottle G to be placed are formed. The support substrate 2 is made of a synthetic resin material having high strength and heat insulation. As a result, the secular change due to the wear of the support substrate 2 can be reduced, and the occurrence of scraps and the like of the support substrate 2 can be reduced, so that it can be used for a long time. In addition, the clogging of the scraps and the like in the holes 21 and 22 can be reduced.
Each of the holes 21 and 22 penetrates the support substrate 2 up and down, and opens on the upper surface and the lower surface. In FIG. 4, reference numeral 25 denotes a horizontal floor plate provided between stations, and the bottle G slides on the floor plate 25 and is guided onto the support surface 20 of the support substrate 2.

A vacuum device 3 is connected to the one hole 21 through a vent pipe 23. This vacuum device 3 reduces the internal pressure in the space S by deriving air from the space S. The vacuum device 3 has a filter 24 attached to the air introduction portion. The filter 24 is for removing foreign substances such as glass fragments taken in from the vent pipe 23 together with air.
Note that the number of attached filters 24 is changed according to the size of the holes 21 to be formed. That is, when the diameter of the hole 21 is large, the number of the filters 24 is increased to prevent foreign matter such as broken glass and scraped scraps of the third transport conveyor 6c from getting stuck in the hole 21. Therefore, the accuracy of the smoothness inspection can be increased, and the discard of non-defective bottles can be greatly reduced.

A pressure sensor 4 for detecting the internal pressure in the space S is connected to the other hole 22. The pressure sensor 4 detects the internal pressure in the space S after the air is derived, and the smoothness level of the bottle bottom is determined based on the detected internal pressure.
The pressure sensor 4 is electrically connected to the determination device 14 by a cord line, and the detected value of the internal pressure by the pressure sensor 4 is converted into an electric signal and output to the determination device 14. The discrimination device 14 compares the input internal pressure detection value with a predetermined threshold value set in advance. When the internal pressure detection value is larger than the predetermined threshold value, the smoothness of the bottom of the bottle G is poor. Judge.

  In this embodiment, the internal pressure in the space S is reduced by deriving the air in the space S by the vacuum device 3, and the smoothness of the bottle bottom is inspected by detecting the internal pressure value. However, instead of the vacuum device 3, an air supply device that introduces air into the space S may be used. When air is introduced into the space S by the air supply device, the internal pressure increases. However, since the internal pressure varies depending on the air leakage, the smoothness of the bottle bottom is inspected by checking the internal pressure. When the detected internal pressure value is lower than the predetermined threshold value, it is determined that the smoothness of the bottom of the bottle G is poor.

  When the bottle G manufactured by the bottle making machine 5 is introduced into the inspection apparatus 7 and sent to the first inspection station A in the bottle manufacturing line having the above-described configuration, the bottle inspection machine 1 determines the smoothness of the bottle bottom. That is, the degree of smoothness of the outer peripheral portion b surrounding the recess a at the bottom of the bottle is inspected.

  When the bottle G is placed on the support surface 20 of the support substrate 2 so that the two holes 21 and 22 formed in the support surface 20 are included in the depression a at the center of the bottom surface, The device 3 is driven, and the air in the space S formed between the support surface 20 and the bottom surface of the bottle G is led out. As a result, the internal pressure of the space S decreases and the bottle G and the support surface 20 are brought into close contact with each other, so that the bottle G does not rattle when detecting the internal pressure of the space S.

  If the bottom of the bottle G is smooth, there will be no gap between the outer peripheral portion b of the bottom surface of the bottle G and the support surface 20 of the support substrate 2, and the internal pressure of the space S will be sufficiently reduced. On the other hand, if the bottom of the bottle G is not smooth, a gap is generated between the outer peripheral portion b of the bottom surface of the bottle G and the support surface 20, and the internal pressure of the space S is not sufficiently lowered.

  This internal pressure is detected by the pressure sensor 4, and the discrimination device 14 compares the internal pressure detection value with a predetermined threshold value. When the detected internal pressure value is greater than the predetermined threshold value, it is determined that the smoothness of the bottom of the bottle G is defective.

  When the inspection by the bottle inspection machine 1 is completed, the bottle G inspected at the first inspection station A is sent to the second inspection station B by the sequential feeding operation of the sequential feeding mechanism 12, and the bottle inspection machine 13 performs a predetermined defect. The event is inspected for defects. In addition, a new bottle G that has not been inspected is introduced into the first inspection station A, and the new bottle G is inspected for the smoothness of the bottom of the bottle.

It is explanatory drawing which shows the whole structure of a bottle making line. It is a top view which expands and shows a part of inspection apparatus. It is sectional drawing which shows the structure of a bottle inspection machine. It is a top view which shows the structure of a support substrate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bottle inspection machine 2 Support board 3 Vacuum apparatus 4 Pressure sensor 10 Notch part 11 Star wheel 14 Discriminating device 20 Support surface 21,22 Hole 24 Filter

Claims (5)

A bottle inspection machine that inspects the smoothness of the bottom of the bottle by the smoothness of the outer periphery surrounding the recess, with the center of the bottom of the bottle being recessed inward and the bottle surrounding the recess surrounded by the outer periphery. , Having a support substrate that supports the bottle bottom of the introduced bottle to be inspected on the support surface of the surface, the support surface is formed with a smooth surface, and at the position where the bottle is placed, Two holes communicating with the space formed between the support surface and the bottom surface of the bottle placed on the support surface are formed, and air is led out from the space to one of the holes. An air suction device for reducing the internal pressure is connected, and the other hole is connected to a pressure detection means for detecting the internal pressure in the space after the air is led out , and the detected value of the internal pressure by the pressure detection means is discriminated. By comparing with a predetermined threshold in the device Bottle inspection machine which is adapted to determine the smoothing degree of the outer peripheral portion surrounding the recess of the bottle bottom. The bottle inspection machine according to claim 1, wherein the air suction device is provided with a filter in an air introduction portion. A bottle inspection machine that inspects the smoothness of the bottom of the bottle by the smoothness of the outer periphery surrounding the recess, with the center of the bottom of the bottle being recessed inward and the bottle surrounding the recess surrounded by the outer periphery. , Having a support substrate that supports the bottle bottom of the introduced bottle to be inspected on the support surface of the surface, the support surface is formed with a smooth surface, and at the position where the bottle is placed, Two holes communicating with the space formed between the support surface and the bottom surface of the bottle placed on the support surface are formed, and air is introduced into the space in one hole. An air supply device for increasing the internal pressure is connected, and the other hole is connected to a pressure detection means for detecting the internal pressure in the space after the air is introduced, and the detected value of the internal pressure by the pressure detection device is discriminated. At the bottom of the bottle by comparing it with a predetermined threshold Bottle inspection machine which is adapted to determine the smoothing degree of the outer peripheral portion surrounding the recess. A bottle maker that is divided into a plurality of sections and that simultaneously manufactures the same bottle for each section, and an inspection apparatus that is provided on the downstream side of the bottle maker and has a plurality of inspection stations that inspect for the presence or absence of bottle defects. A bottle making apparatus comprising the bottle inspection machine according to any one of claims 1 to 3 in any one of the inspection stations. 5. The plurality of inspection stations are provided on an outer periphery of a star wheel having a plurality of notches into which bottles are introduced, at angular positions at which the notches stop when the star wheel is intermittently driven. The bottle making apparatus described in 1.

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