JP2023156115A - Device and method for manufacturing glass product - Google Patents

Abstract

To prevent a glass product from coming into contact with a manufacture-related treatment part for performing manufacture-related treatment of such as an air knife when the glass product is transported abnormally.SOLUTION: A glass product manufacturing device 1 includes: a transport device 5b for transporting a glass product G along a predetermined transport direction X; and an air knife 14 for blowing a gas 13 to the glass product G. The manufacturing device 1 includes a contact prevention member 16 for preventing the glass product G from coming into contact with the air knife 14 when the glass product G is transported abnormally.SELECTED DRAWING: Figure 1

Description

The present invention relates to an apparatus and method for manufacturing glass products.

For example, in the method of manufacturing glass plates such as glass substrates for displays, there is a processing process in which end face processing is performed on a glass plate cut from a glass original plate, a cleaning process in which the glass plate is cleaned after processing, and a process in which the surface of the glass plate is cleaned during cleaning. A drying process is performed to remove the cleaning liquid adhering to the surface by blowing gas from an air knife (for example, see Patent Document 1).

In this manufacturing method, the cleaning step and the drying step are performed while transporting the glass plate along a predetermined transport route. The conveying device used to convey the glass plate is constituted by, for example, a roller conveyor (see paragraph 0019 of the same document).

JP 2019-89044 Publication

In the conventional glass plate manufacturing method as described above, in order to reliably remove the cleaning liquid adhering to the glass plate during the cleaning process, an air knife is applied to the glass plate being transported by the transport device as much as possible during the drying process. It is desirable to place them close together.

However, depending on the state of the conveyance device, vibration may occur in the glass plate during conveyance, and there is a risk that the glass plate may come into contact with the air knife. If the glass plate comes into contact with the air knife, there is a risk that the metal constituting the air knife will adhere to the glass plate, thereby contaminating the glass plate or damaging the glass plate.

The present invention has been made in view of the above circumstances, and is designed to prevent glass products from coming into contact with a manufacturing-related processing section that performs manufacturing-related processing such as air knives when glass products such as glass plates are transported abnormally. The technical challenge is to prevent this.

The present invention is intended to solve the above-mentioned problems, and provides a glass product manufacturing apparatus that includes a transport device that transports glass products along a predetermined transport direction, and an air knife that blows gas onto the glass products. and a contact prevention member that prevents the glass product from coming into contact with the air knife when the glass product is conveyed abnormally, and the contact prevention member is located on the upstream side of the air knife in the conveyance direction. and at least one of the downstream side.

According to this configuration, when the glass product is transported abnormally, the contact prevention member can prevent the glass product from coming into contact with the air knife.

The contact prevention member may also function as a marker that attaches a mark indicating abnormal transportation to the surface of the glass product when the glass product is transported abnormally.

According to this configuration, by attaching a mark to the glass product using the contact prevention member and detecting this mark, it is possible to detect that an abnormality has occurred in the transport of the glass product by the transport device. If the conveyance device is maintained based on this detection, the conveyance abnormality can be resolved at an early stage.

The contact prevention member may include an elastic body capable of contacting the glass product. According to this configuration, when the glass product comes into contact with the elastic body due to a transportation abnormality, the elastic body is pressed by the glass product and elastically deforms. Thereby, it is possible to reduce the impact that occurs on the glass product when the contact prevention member comes into contact with the glass product. Moreover, this elastic deformation makes it possible to ensure a large contact area of the elastic body with the glass product. Thereby, when the contact prevention member is used as a marker, it is possible to make the mark made on the glass product by the elastic body as large as possible.

In the glass product manufacturing apparatus according to the present invention, when the glass product is being transported normally, the distance between the contact prevention member and the glass product is longer than the distance between the air knife and the glass product. It is preferable that the contact prevention member contacts the glass product so that the glass product does not come into contact with the air knife when the glass product is conveyed abnormally.

According to this configuration, when an abnormality occurs in the transportation of the glass product by the transportation device, it is possible to prevent the glass product from coming into contact with the air knife.

The glass product manufacturing apparatus according to the present invention may include an inspection device that detects the mark. According to this configuration, abnormality in the conveyance of glass products by the conveyance device can be detected efficiently and reliably.

In the glass product manufacturing apparatus according to the present invention, the contact prevention member may include a roller. According to this configuration, when a transport abnormality occurs in the transport device and the glass product comes into contact with the contact prevention member, it is possible to prevent excessive frictional force from acting on the glass product.

The contact prevention member may be arranged upstream and downstream of the air knife in the conveyance direction. According to this configuration, the contact prevention members provided on the upstream and downstream sides of the air knife can reliably prevent the glass product from coming into contact with the air knife when a conveyance abnormality of the glass product occurs.

The contact prevention member may be arranged above the glass product transported by the transport device.

The present invention is intended to solve the above-mentioned problems, and is a manufacturing apparatus for glass products, which is equipped with a conveyance device that conveys glass products along a predetermined conveyance direction, and in which the glass products are normally conveyed by the conveyance device. a manufacturing-related processing section disposed apart from the surface of the glass product; a contact prevention member that comes into contact with the surface of the product, and the contact prevention member is disposed on at least one of the upstream side and the downstream side of the manufacturing-related processing section in the conveyance direction.

According to this configuration, when the glass product is transported abnormally, the contact prevention member can prevent the glass product from coming into contact with the manufacturing-related processing section.

The present invention is intended to solve the above-mentioned problems, and includes a cleaning step in which the glass product is washed by a cleaning device while the glass product is transported along a predetermined transport direction; a drying step of blowing gas onto the glass product using an air knife while conveying the glass product along the conveyance direction, the method includes: The glass product is prevented from coming into contact with the air knife by bringing a contact prevention member disposed on at least one of the upstream side and the downstream side of the air knife in the conveyance direction into contact with the glass product.

According to this configuration, when the glass product is transported abnormally, by bringing the contact prevention member into contact with the glass product, it is possible to prevent the glass product from coming into contact with the air knife.

The present invention is intended to solve the above-mentioned problems, and includes a manufacturing-related processing step in which a manufacturing-related processing section performs manufacturing-related processing on the glass product while transporting the glass product along a predetermined transport direction. A method for manufacturing a glass product, comprising: a contact prevention member disposed on at least one of the upstream side and the downstream side of the manufacturing-related processing section in the conveyance direction when the glass product is conveyed abnormally. By contacting the glass product, the glass product is prevented from coming into contact with the manufacturing-related processing section.

According to this configuration, when the glass product is transported abnormally, by bringing the contact prevention member into contact with the glass product, it is possible to prevent the glass product from coming into contact with the manufacturing-related processing section.

According to the present invention, when a glass product is transported abnormally, it is possible to prevent the glass product from coming into contact with a manufacturing-related processing unit that performs manufacturing-related processing such as an air knife.

FIG. 1 is a side view showing a glass product manufacturing apparatus. FIG. 2 is a side view showing a drying section in the glass product manufacturing apparatus. 2 is a view taken along the line III-III in FIG. 1. FIG. It is a flowchart which shows the manufacturing method of a glass product. It is a side view which shows a marking process. It is a figure showing a marking process. It is a perspective view showing an inspection process.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. 1 to 7 show an embodiment of a glass product manufacturing apparatus and manufacturing method according to the present invention. Although a rectangular glass plate will be exemplified below as a glass product, the shape of the glass product is not limited to this embodiment.

As shown in FIG. 1, the glass product manufacturing apparatus 1 includes a cleaning section 2, a drying section 3, an inspection section 4, and transport devices 5a to 5c that transport the glass plate G along a predetermined transport direction X. , is provided. Hereinafter, when describing the positional relationship of these components in the manufacturing apparatus 1, the terms "upstream side" and "downstream side" may be used based on the transport direction X of the glass plate G.

The cleaning section 2 includes a first cleaning device 6 and a second cleaning device 7 provided downstream of the first cleaning device 6.

The first cleaning device 6 includes a device 8 for supplying cleaning liquid to the glass plate G (hereinafter referred to as “first supply device”) and a cleaning tool 9 disposed downstream of the first supply device 8.

The first supply device 8 includes a pair of upper and lower supply devices so as to supply the cleaning liquid 10 to the entire surface of the glass plate G (upper surface Ga and lower surface Gb). For example, pure water can be used as the cleaning liquid 10 supplied by the first supply device 8, and detergents (acidic detergents, alkaline detergents), surfactants, alkaline ionized water, etc. may be added as necessary. good.

The cleaning tool 9 is composed of a pair of upper and lower cleaning rollers that scrub the surfaces Ga and Gb of the glass plate G to remove dirt such as foreign matter adhering to the surfaces Ga and Gb. The cleaning roller may have a contact portion with the glass plate G made of an elastic material such as a sponge, or may be made of a brush. In the former case, the cleaning roller is a sponge roller, and in the latter case, the cleaning roller is a brush roller. A cleaning disk may be used instead of the cleaning roller, or the cleaning roller and the cleaning disk may be combined.

The second cleaning device 7 includes a pair of upper and lower supply devices (hereinafter referred to as "second supply devices") 12 that supply a rinsing liquid 11 to the glass plate G that has passed through the first cleaning device 6. As the rinsing liquid 11 supplied to the glass plate G by the second supply device 12, it is possible to use a known type of rinsing liquid such as pure water.

As shown in FIGS. 1 to 3, the drying section 3 includes a pair of upper and lower first air knives 14 that spray gas 13 onto the glass plate G, and a pair of upper and lower second air knives 15 provided downstream of the first air knife 14. , a first contact prevention member 16 and a second contact prevention member 17 that prevent the glass plate G from contacting the air knives 14 and 15.

The first air knife 14 is made of metal, for example, stainless steel. The first air knife 14 is a manufacturing-related processing section that performs predetermined manufacturing-related processing on the glass plate G. Specifically, the first air knife 14 is a gas blowing device for blowing a gas 13 such as clean dry air onto the surfaces Ga and Gb of the glass plate G that have passed through the second cleaning device 7. The first air knife 14 includes a spout 14a that spews out the gas 13.

Of the pair of upper and lower first air knives 14, the jet port 14a of the upper first air knife 14 is the lowest position (lower end) of the first air knife 14. That is, the jet nozzle 14a of the first air knife 14 on the upper side is a portion located closest to the upper surface Ga of the glass plate G. When the glass plate G is being transported normally, the distance DA1 between the jet port 14a of the upper first air knife 14 and the upper surface Ga of the glass plate G is preferably 2.0 to 3.0 mm. .

The jet nozzle 14a of the lower first air knife 14 is the uppermost portion (upper end portion) of the first air knife 14. That is, the jet nozzle 14a of the first air knife 14 on the lower side is a portion located closest to the lower surface Gb of the glass plate G. When the glass plate G is being transported normally, the distance DA2 between the jet nozzle 14a of the lower first air knife 14 and the lower surface Gb of the glass plate G is 2.0 to 3.0 mm. preferable.

The second air knife 15 is made of metal, for example, stainless steel. The second air knife 15 may have the same shape as the first air knife 14. The second air knife 15 is a manufacturing-related processing section that performs predetermined manufacturing-related processing on the glass plate G. Specifically, the second air knife 15 is a gas blowing device for blowing a gas 13 such as clean dry air onto the surfaces Ga and Gb of the glass plate G that have passed through the first air knife 14. The second air knife 15 includes a spout 15a that spouts out the gas 13.

Of the pair of upper and lower second air knives 15, the spout 15a of the upper second air knife 15 is the lowest position (lower end) of the second air knife 15. That is, the spout 15a of the upper second air knife 15 is the part located closest to the upper surface Ga of the glass plate G. When the glass plate G is being transported normally, the distance DA3 between the spout 15a of the upper second air knife 15 and the upper surface Ga of the glass plate G is preferably 2.0 to 3.0 mm. .

The jet nozzle 15a of the second air knife 15 on the lower side is the uppermost portion (upper end portion) of the second air knife 15. That is, the jet nozzle 15a of the second air knife 15 on the lower side is a portion located closest to the lower surface Gb of the glass plate G. When the glass plate G is being transported normally, the distance DA4 between the jet nozzle 15a of the lower second air knife 15 and the lower surface Gb of the glass plate G is 2.0 to 3.0 mm. preferable.

Each of the contact prevention members 16 and 17 prevents the glass plate G from contacting the air knives 14 and 15 by contacting the glass plate G when the glass plate G is conveyed abnormally. Each of the contact prevention members 16 and 17 also functions as a marker that comes into contact with the surfaces Ga and Gb of the glass plate G that has been conveyed abnormally and attaches a mark indicating that the conveyance is abnormal. When the glass plate G is being conveyed normally, each contact prevention member 16, 17 is separated from the glass plate G, and each contact prevention member 16, 17 does not come into contact with the glass plate G.

The first contact prevention member 16 includes a pair of upper and lower upstream contact prevention members 16a1 and 16a2 located upstream of the first air knife 14, and a pair of upper and lower downstream contact prevention members 16b1 located downstream of the first air knife 14. , 16b2. The second contact prevention member 17 includes a pair of upper and lower upstream contact prevention members 17a1 and 17a2 located upstream of the second air knife 15, and a pair of upper and lower downstream contact prevention members 17b1 located downstream of the second air knife 15. , 17b2.

The upstream contact prevention members 16a1, 16a2, 17a1, 17a2 in the first contact prevention member 16 and the second contact prevention member 17 are connected to the upper contact prevention members 16a1, 17a1 located above the glass plate G being conveyed, and the glass plate and lower contact prevention members 16a2 and 17a2 located below G.

As shown in FIG. 2, when the glass plate G is being transported normally, the separation distance DB1 between the upper contact prevention members 16a1, 17a1 and the upper surface Ga of the glass plate G is determined by the air knife located above the glass plate G. The distances DA1 and DA3 between the glass plates 14 and 15 are set smaller than the distances DA1 and DA3. Similarly, when the glass plate G is being conveyed normally, the distance DB2 between the lower contact prevention members 16a2 and 17a2 and the lower surface Gb of the glass plate G is the same as the distance between the air knives 14 and 15 located below the glass plate G. The distances DA2 and DA4 between the lower surfaces Gb of the glass plates G are set smaller.

The downstream contact prevention members 16b1, 16b2, 17b1, 17b2 in the first contact prevention member 16 and the second contact prevention member 17 are connected to the upper contact prevention members 16b1, 17b1 located above the glass plate G being conveyed, and the glass plate lower contact prevention members 16b2 and 17b2 located below G. The distances DB3 and DB4 between the surfaces Ga and Gb of the glass plate G that are normally transported and the downstream contact prevention members 16b1, 16b2, 17b1, and 17b2 are the surface Ga of the glass plate G that is normally transported. , Gb and each of the air knives 14, 15 are set smaller than the respective separation distances DA1 to DA4.

The distances DB1 to DB4 between the surfaces Ga and Gb of the normally transported glass plate G and each of the contact prevention members 16 and 17 are preferably 0 to 3.0 mm. Furthermore, the distance between the first contact prevention member 16 and the jet nozzle 14a of the first air knife 14 in the transport direction X is preferably 0.1 to 20 mm. Further, the distance between the second contact prevention member 17 and the jet port 15a of the second air knife 15 in the transport direction X is preferably 0.1 to 20 mm.

As shown in FIG. 3, the upstream contact prevention members 16a1 and 16a2 of the first contact prevention member 16 include a plurality of contact prevention members arranged at predetermined intervals along the width direction GX of the glass plate G. Regarding the downstream contact prevention members 16b1, 16b2 of the first contact prevention member 16 and the second contact prevention member 17 (upstream contact prevention members 17a1, 17a2 and downstream contact prevention members 17b1, 17b2), the width direction of the glass plate G is It may be configured to include a plurality of contact prevention members along GX.

Each contact prevention member 16, 17 is constituted by, for example, a roller. Specifically, each contact prevention member 16, 17 includes a roller body 18 and a shaft portion 19 that rotatably supports the roller body 18. The roller body 18 is made of, for example, resin and has a cylindrical shape. The shaft portion 19 extends along the horizontal direction orthogonal to the transport direction X of the glass plate G.

The roller body 18 includes a contact portion 20 that can come into contact with the glass plate G on its outer peripheral surface. The contact portion 20 is provided over the entire outer peripheral surface of the roller body 18. It is preferable that the contact portion 20 is made of an elastic body. Examples of materials used for the elastic body include rubber. In this embodiment, the elastic body has an annular configuration and is detachably attached to the outer peripheral surface of the roller body 18. Note that the elastic body is preferably colored in a dark color. Thereby, as will be described later, it is possible to mark the glass plate G with a mark that makes it easy to detect conveyance abnormalities.

The inspection unit 4 includes an inspection device 21 that inspects the glass plate G. The inspection device 21 includes an imaging device 22 that images surfaces Ga and Gb of the glass plate G, and an image processing device 23.

The imaging device 22 images the surfaces Ga and Gb of the glass plate G being conveyed in a predetermined posture, and acquires the image data. The imaging device 22 can transmit the acquired image data to the image processing device 23. The image processing device 23 is configured by a computer, and inspects the presence or absence of defects in the glass plate G, the presence or absence of marks by contact prevention members (markers) 16 and 17, etc. based on the image data transmitted from the imaging device 22. I can do it.

As shown in FIGS. 1 and 2, the transport devices 5a to 5c include a first transport device 5a that transports the glass plate G in the cleaning section 2, and a second transport device 5b that transports the glass plate G in the drying section 3. , and a third conveyance device 5c that conveys the glass plate G in the inspection section 4. Each of the conveyance devices 5a to 5c is constituted by, for example, a roller conveyor. Each of the conveyance devices 5a to 5c has a plurality of conveyance rollers 24 arranged at intervals along the conveyance direction X of the glass plate G.

The conveyance devices 5a to 5c can adjust the vertical and horizontal positions of the plurality of conveyance rollers 24 so as to convey the glass plate G at a predetermined height and in a predetermined posture.

As shown in FIG. 3, the conveyance roller 24 is inclined at a predetermined angle θ with respect to the horizontal direction perpendicular to the conveyance direction X of the glass plate G. The inclination angle θ of the conveyance roller 24 is preferably 1 to 10 degrees. With this configuration, the glass plate G normally transported by the transport rollers 24 is transported in an inclined posture.

In this case, one end (hereinafter referred to as "first end") Gc of the glass plate G in the width direction GX is different from the other end (hereinafter referred to as "second end") of the glass plate G in the width direction GX. ) located below Gd. The glass plate G may be conveyed with the first end Gc supported by a roller (not shown).

As described above, by conveying the glass plate G in an inclined posture by the conveyance roller 24, the cleaning liquid 10 or the rinsing liquid 11 supplied to the glass plate G is transferred from the second end Gd side to the first end Gc side. The liquid flows toward the first end Gc and falls from the first end Gc.

Hereinafter, a method for manufacturing the glass plate G using the manufacturing apparatus 1 having the above configuration will be described. As shown in FIG. 4, this method includes a processing step S1, a cleaning step S2, a drying step S3, and an inspection step S4.

The processing step S1 is a manufacturing-related processing step, and includes, for example, a step of processing the end face of the glass plate G with a grindstone, a step of polishing the surface of the glass plate G, and a step of roughening the surface of the glass plate G. In this method, a cutting step (manufacturing-related processing step) for cutting out a glass plate G of a desired size from a glass original plate may be provided as a pre-process to the processing step S1. Note that a glass plate cut out from a glass ribbon formed by, for example, an overflow method or a float method can be used as the glass original plate.

The glass plate G that has undergone the processing step S1 is, for example, a display glass plate having a length and a width of 100 to 5000 mm and a thickness of 50 to 1500 μm. Such a glass plate G may be warped in the thickness direction depending on molding conditions and the like.

The cleaning step S2 is a manufacturing-related treatment step for cleaning the glass plate G after the processing step S1. In the cleaning step S2, while the glass plate G is conveyed along the conveyance direction X by the first conveyance device 5a, the cleaning liquid 10 is applied to the surfaces Ga and Gb of the glass plate G by the first supply device 8 of the first cleaning device 6. supply Thereafter, the surfaces Ga and Gb of the glass plate G are scrubbed and cleaned using the cleaning tool 9 of the first cleaning device 6.

Thereafter, the glass plate G transported by the first transport device 5a reaches the second cleaning device 7. In the second cleaning device 7, the second supply device 12 supplies the rinsing liquid 11 to the surfaces Ga and Gb of the glass plate G that has been transported, thereby rinsing the glass plate G. After that, the first conveyance device 5a conveys the glass plate G to the drying section 3.

The drying step S3 is a manufacturing-related processing step of drying the glass plate G after the cleaning step S2. In the drying step S3, gas 13 is blown onto the glass plate G from the first air knife 14 while the glass plate G is being transported by the second transporting device 5b (first drying step). As a result, the rinsing liquid 11 remaining on the surfaces Ga and Gb of the glass plate G is removed.

Thereafter, the gas 13 is blown from the second air knife 15 onto the glass plate G that has passed through the first air knife 14 and reached the second air knife 15 (second drying step). Thereby, the surfaces Ga and Gb of the glass plate G can be dried.

In addition to the above-mentioned steps, the method may include a marking step of marking the glass plate G when the glass plate G is transported abnormally. Hereinafter, this marking step will be explained using an example in which a mark is attached to the glass plate G by the upper contact prevention member 16a1, which is the upstream contact prevention member of the first contact prevention member 16.

For example, during maintenance work on the second conveyance device 5b, the conveyance roller 24 may be disposed at an inappropriate position deviated from a predetermined position. In FIGS. 5 and 6, the conveyance roller 24 in an appropriate position is shown by a solid line, and the conveyance roller 24 in an inappropriate position is shown by a chain double-dashed line.

As shown in FIGS. 5 and 6, the conveyance roller 24 (two-dot chain line) in an inappropriate position is more likely to prevent the upper contact of the first contact prevention member 16 than the conveyance roller 24 (solid line) in an appropriate position. It is located near the member 16a1. In this case, when the glass plate G passes the conveyance roller 24 which is in an inappropriate position, the glass plate G is lifted by the conveyance roller 24, thereby causing vibration in the glass plate G.

In the marking process, when a conveyance abnormality of the glass plate G occurs in the second conveyance device 5b as described above, the upper surface Ga of the glass plate G is brought into contact with the upper surface as shown by the two-dot chain line in FIGS. 5 and 6. It contacts the contact portion 20 of the prevention member 16a1. At this time, the roller main body 18 of the upper contact prevention member 16a1 rotates, and the elastic body serving as the contact portion 20 is elastically deformed by this contact. Further, as the elastically deformed contact portion 20 rubs against the top surface Ga of the glass plate G, a part of the rubber constituting the elastic body is transferred to the top surface Ga of the glass plate G. As a result, a mark (contact trace) is placed on the upper surface Ga of the glass plate G.

As described above, in the marking process, the upper contact prevention member 16a1 of the first contact prevention member 16 contacts the upper surface Ga of the glass plate G, thereby preventing the glass plate G from contacting the upper first air knife 14. be done.

The glass plate G subjected to the drying step S3 (marking step) in the drying section 3 is transported to the inspection section 4 by the second transport device 5b.

In the inspection step S4, the glass plate G that has undergone the drying step S3 is inspected for the presence or absence of defects and the presence or absence of transport abnormalities. In the inspection step S4, the inspection device 21 determines the quality of the glass plate G as a product based on the inspection results.

As shown in FIG. 7, if a mark M is attached to the glass plate G in the inspection process S4, the inspection device 21 detects this mark M and indicates that an abnormality has occurred in the conveyance of the glass plate G. Detect.

In the inspection step S4, when the mark M attached by each contact prevention member 16, 17 is detected, the second conveyance device 5b is inspected. In this inspection, the position of the conveyance roller 24 constituting the second conveyance device 5b is inspected. If the conveyance roller 24 is defective, maintenance and position adjustment are performed to eliminate the defect. Note that the glass plate G on which the mark M was detected in the inspection step S4 may be subjected to the cleaning step S2 and the drying step S3 again. Thereby, the mark M can be removed from the glass plate G.

According to the manufacturing apparatus 1 and manufacturing method for glass products (glass plates G) according to the present embodiment described above, when an abnormality occurs in the conveyance of the glass plate G in the second conveyance device 5b, the marking process (contact prevention A mark M can be attached to the glass plate G by the members 16, 17). By detecting this mark M in the inspection step S4 (inspection device 21), it becomes possible to quickly detect that an abnormality has occurred in the second conveyance device 5b.

Note that the present invention is not limited to the configuration of the embodiment described above, nor is it limited to the effects described above. The present invention can be modified in various ways without departing from the gist of the invention.

In the above embodiment, an example was shown in which the contact prevention members 16 and 17 were configured by rotatable rollers, but the present invention is not limited to this configuration. The contact prevention members 16 and 17 may be configured to contact the glass plate G without rotating.

In the above embodiment, an example is shown in which an elastic body is used for the contact portions 20 of the contact prevention members 16 and 17, but the present invention is not limited to this configuration. The contact portions 20 of the contact prevention members 16 and 17 are not limited to an elastic body, and may be made of a material having a lower hardness than the glass plate G, for example, a synthetic resin such as polyamide resin, phenol resin, or urethane resin. That is, for example, the roller bodies 18 of the contact prevention members 16 and 17 may be made of synthetic resin, and the outer peripheral surface of the roller bodies 18 may be used as the contact portion 20 to the glass plate G.

In the above embodiment, the contact prevention members 16 and 17 are positioned above and below the glass plate G transported by the transport devices 5a to 5c, but the present invention is not limited to this configuration. For example, the contact prevention member may be placed only above the glass plate G being transported.

In the embodiment described above, an example of the manufacturing apparatus 1 was shown in which the contact prevention members 16 and 17 were arranged on the conveyance path of the glass plate G by the second conveyance device 5b, but the present invention is not limited to this configuration. The contact prevention member may be arranged on the conveyance path of the glass plate G by the first conveyance device 5a or the third conveyance device 5c. In addition, a contact prevention member may be placed on the conveyance path when the glass plate G is conveyed to the first cleaning device 6 after the processing step S1.

In the above embodiment, an example of the manufacturing apparatus 1 is shown in which the contact prevention members 16 and 17 are arranged both on the upstream side and the downstream side of the air knives 14 and 15, but the present invention is not limited to this configuration. The manufacturing apparatus 1 may have contact prevention members 16 and 17 disposed only on the upstream side or only on the downstream side of the air knives 14 and 15. From the viewpoint of reliably preventing glass products from coming into contact with the air knives 14 and 15, it is preferable to arrange contact prevention members 16 and 17 only on the upstream side of the air knives 14 and 15, and contact prevention members 16 and 17 are preferably provided on both the upstream and downstream sides. It is more preferable to arrange the members 16 and 17.

1 Glass product manufacturing device 5a First conveyance device 5b Second conveyance device 5c Third conveyance device 13 Gas 14 First air knife 15 Second air knife 16 First contact prevention member 17 Second contact prevention member 18 Roller body of contact prevention member 20 Contact part (elastic body)
21 Inspection device DA1 Separation distance between air knife and glass plate DA2 Separation distance between air knife and glass plate DA3 Separation distance between air knife and glass plate DA4 Separation distance between air knife and glass plate DB1 Separation distance between contact prevention member and glass plate DB2 Distance between contact prevention member and glass plate DB3 Distance between contact prevention member and glass plate DB4 Distance between contact prevention member and glass plate G Glass plate (glass product)
Ga Top surface of glass plate (surface of glass product)
Gb Bottom surface of glass plate (surface of glass product)
M Mark S2 Cleaning process (manufacturing related treatment process)
S3 Drying process (manufacturing related processing process)
X Conveying direction

Claims (11)

A glass product manufacturing device comprising: a transport device that transports glass products along a predetermined transport direction; and an air knife that blows gas onto the glass products.
comprising a contact prevention member that prevents the glass product from coming into contact with the air knife when the glass product is conveyed abnormally;
The glass product manufacturing apparatus is characterized in that the contact prevention member is disposed on at least one of an upstream side and a downstream side of the air knife in the conveyance direction. 2. The glass product manufacturing apparatus according to claim 1, wherein the contact prevention member is a marker that attaches a mark indicating abnormal transportation to the surface of the glass product when the glass product is transported abnormally. 3. The glass product manufacturing apparatus according to claim 1, wherein the contact prevention member includes an elastic body capable of contacting the glass product. When the glass product is being transported normally, the distance between the contact prevention member and the glass product is set smaller than the distance between the air knife and the glass product,
The glass product manufacturing apparatus according to claim 1 or 2, wherein the contact prevention member contacts the glass product to prevent the glass product from coming into contact with the air knife when the glass product is transported abnormally. . The glass product manufacturing apparatus according to claim 2, further comprising an inspection device that detects the mark. The glass product manufacturing apparatus according to claim 1 or 2, wherein the contact prevention member includes a roller. The glass product manufacturing apparatus according to claim 1 or 2, wherein the contact prevention member is arranged upstream and downstream of the air knife in the conveyance direction. The glass product manufacturing apparatus according to claim 1 or 2, wherein the contact prevention member is arranged above the glass product transported by the transport device. A glass product manufacturing device comprising a conveyance device that conveys glass products along a predetermined conveyance direction,
a manufacturing-related processing unit disposed apart from the surface of the glass product that is normally transported by the transport device; and a manufacturing-related processing unit that processes the glass product when the glass product is transported abnormally. a contact prevention member that contacts the surface of the glass product so as not to contact the surface of the glass product,
A glass product manufacturing apparatus, wherein the contact prevention member is disposed on at least one of an upstream side and a downstream side of the manufacturing-related processing section in the conveyance direction. a cleaning step of cleaning the glass product with a cleaning device while transporting the glass product along a predetermined transport direction; and after the cleaning step, washing the glass product with an air knife while transporting the glass product along the transport direction; A method for manufacturing a glass product, comprising a drying step of blowing gas onto the product,
When the glass product is transported abnormally, a contact prevention member disposed on at least one of the upstream side and the downstream side of the air knife in the transport direction is brought into contact with the glass product. A method for manufacturing a glass product characterized by preventing contact with an air knife. A method for manufacturing a glass product, comprising a manufacturing-related processing step in which a manufacturing-related processing section performs manufacturing-related processing on the glass product while transporting the glass product along a predetermined transport direction, the method comprising:
When the glass product is transported abnormally, a contact prevention member disposed on at least one of the upstream side and the downstream side of the manufacturing-related processing section in the transport direction is brought into contact with the glass product. A method for manufacturing a glass product, characterized by preventing the product from coming into contact with the manufacturing-related processing section.

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