JP6146664B2 - Opposed air blow - Google Patents

Description

  The present invention relates to an opposed air blower that ejects air to a first surface and a second surface of a sheet-like sheet-like conveyance object that face each other.

  In a production line for color filters for liquid crystal panels, an apparatus called an air blower that blows air to the surface of a sheet-like transported object is used to remove foreign substances adhering to the surface of the sheet-like transported object. Yes. Specifically, the air blow includes an ejection device that ejects air to the surface of the sheet-like conveyed product, and a compressed air generation device connected to the ejection device, and is generated by the compressed air generation device. Thus, foreign matter on the surface of the sheet-like transported material is blown off and removed by the high wind speed air ejected from the ejection device.

  Some foreign matter that adheres strongly to the surface of a sheet-like transported object strongly adheres due to static electricity. For such foreign matter, charged particles generated by an ionizer are mixed into the air ejected from the ejection port. Thus, a method is known in which the adhesion of foreign matter to the surface of a sheet-like transported object is reduced to facilitate removal.

  By the way, when the foreign matter is blown off from the surface of the sheet-like transported object by the air ejected from the ejection device, the blown-off foreign matter is wound up by the air force, and as a result, the surface of the sheet-like transported object There is a possibility of reattachment. In order to prevent such foreign matter from being rolled up, as shown in FIG. 8, a configuration is known in which a suction device 314 for sucking foreign matter blown off from the surface 321 of the sheet-like transported article 320 is provided. .

  However, even in the configuration in which the suction device 314 is provided, as shown in FIG. 9, when the sheet-like transported object 320 is not present in the ejection direction of the air ejected from the ejection device 312, the ejection direction of the air There is a possibility that air is blown onto the surface of another device 319 positioned at (for example, the inner wall surface of the housing), thereby causing foreign matter attached to the surface of the other device 319 to be rolled up. Therefore, when the sheet-like conveyed product 320 does not exist in the ejection direction of the air ejected from the ejection device 312, it is necessary to control the ejection device 312 to stop the ejection of air.

  Patent Document 1 discloses a first ejection device that ejects air in a direction inclined by a predetermined obtuse angle with respect to a conveyance direction with respect to a first surface and a second surface of a sheet-like conveyance object that are being conveyed. The second ejecting device, the first ejecting device, and the second ejecting device are located on the upstream side in the transport direction, and suck the foreign matter blown off from the first surface and the second surface of the sheet-like transported material being transported. An opposing air blow comprising a first suction device and a second suction device is described. In this apparatus, when there is no substrate in the direction of the air jetted from the first jetting device and the second jetting device, the air jetted from the first jetting device and the second jetting device collide with each other and turbulent flow occurs. A state is formed, which may roll up foreign material adhering to other device surfaces. Therefore, when there is no sheet-like transported object in the ejection direction of the air ejected from the first ejection device and the second ejection device, it is necessary to control the first ejection device and the second ejection device to stop the ejection of air. There is.

JP 2009-148699 A

  The present invention has been devised to pay attention to the above problems and to effectively solve them. It is an object of the present invention to provide a foreign object that adheres to the surface of another device without controlling the ejection device to stop the ejection of air when there is no sheet-like conveyance in the ejection direction of the air ejected from the ejection device. An object of the present invention is to provide an opposed air blow that can prevent the hoisting of the air.

  The present invention provides a transport mechanism for transporting a sheet-like transported object having a first surface and a second surface facing each other in a predetermined transport direction in a manner in which the first surface and the second surface are exposed. And a first jet having a first jet port for jetting air in a direction inclined by a predetermined acute angle with respect to the transport direction with respect to the first surface of the sheet-like transport object being transported by the transport mechanism. And a second ejection port that ejects air in a direction inclined by a predetermined obtuse angle with respect to the conveyance direction with respect to the second surface of the sheet-like conveyance object being conveyed by the conveyance mechanism. The ejection device and the first ejection port are located on the downstream side in the conveyance direction, and are ejected from the first ejection port and rebounded by the first surface of the sheet-like conveyance object being conveyed by the conveyance mechanism. The first suction port for sucking And the second suction of the sheet-like transported object that is ejected from the second ejection port and is being conveyed by the conveyance mechanism, and located on the upstream side in the conveyance direction with respect to the second ejection port. A second suction device having a second suction port for sucking the air bounced by the surface, and when the sheet-like transported object does not exist between the first jet port and the second suction port, The air ejected from the first ejection port is adapted to flow into the second suction port, and when the sheet-like transported object does not exist between the second ejection port and the first suction port, The opposed air blow is characterized in that the air ejected from the second ejection port flows into the first suction port.

  According to the present invention, when the sheet-like transported object does not exist between the first jet port and the second suction port, the air jetted from the first jet port flows into the second suction port. Therefore, it is possible to effectively prevent the foreign matter from being rolled up by the air ejected from the first ejection port without controlling the first ejection device to stop the ejection of air from the first ejection port. In addition, since the air ejected from the second ejection port flows into the first suction port when no sheet-like transported object exists between the second ejection port and the first suction port, the second Even if the ejection device is not controlled to stop the ejection of air from the second ejection port, it is possible to effectively prevent the foreign matter from being rolled up by the air ejected from the second ejection port.

  Specifically, for example, the second suction port is located on an extension line in the ejection direction of the air ejected from the first ejection port, and the ejection direction of the air ejected from the second ejection port is extended. The first suction port is located on the line. According to such an aspect, when the sheet-like conveyed product does not exist between the first jet port and the second suction port, the air jetted from the first jet port is effective for the second suction port due to inertia. Can flow into. Further, when the sheet-like conveyed product is not present between the second ejection port and the first suction port, the air ejected from the second ejection port can effectively flow into the first suction port due to inertia.

  Preferably, each of the first jet port and the second jet port has an elongated shape extending in a direction perpendicular to the transport direction and parallel to the sheet-like transported object being transported by the transport mechanism. Yes. According to such an aspect, air can be efficiently ejected over the width direction orthogonal to the conveyance direction of a sheet-like conveyance object.

  Preferably, an end portion on the first suction port side of the first jet port and an end portion on the first jet port side of the first suction port are connected to each other, and the second jet port is connected. The end of the outlet on the second suction port side and the end of the second suction port on the second jet outlet side are connected to each other. According to such an aspect, the air ejected from the first jet port and bounced back by the first surface of the sheet-like transported object being transported by the transport mechanism is the end of the first jet port on the first suction port side. Is smoothly guided toward the first suction port and can be effectively sucked from the first suction port. In addition, the air ejected from the second ejection port and bounced back by the second surface of the sheet-like transported material being conveyed by the conveyance mechanism is the second suction port side end of the second ejection port and the second suction port. The connecting portion that connects the end portion on the second jet outlet side can be smoothly guided toward the second suction port and effectively sucked from the second suction port.

  In this case, more preferably, the connecting portion that connects the first suction port side end portion of the first jet port and the first suction port side end portion of the first suction port is curved. The connecting portion that connects the second suction port side end portion of the second jet port and the second suction port side end portion of the second suction port is also curved. According to such an aspect, the air ejected from the first jet port and bounced back by the first surface of the sheet-like transported object being transported by the transport mechanism is the end of the first jet port on the first suction port side. Is more smoothly guided toward the first suction port by the curved connection part that connects the first suction port side end of the first suction port and suction from the first suction port more effectively. Can be done. In addition, the air ejected from the second ejection port and bounced back by the second surface of the sheet-like transported material being conveyed by the conveyance mechanism is the second suction port side end of the second ejection port and the second suction port. The connecting portion that connects the end portion on the second jet outlet side can be guided more smoothly toward the second suction port and can be more effectively sucked from the second suction port.

  According to the present invention, when the sheet-like transported object does not exist between the first jet port and the second suction port, the air jetted from the first jet port flows into the second suction port. Therefore, it is possible to effectively prevent the foreign matter from being rolled up by the air ejected from the first ejection port without controlling the first ejection device to stop the ejection of air from the first ejection port. In addition, since the air ejected from the second ejection port flows into the first suction port when no sheet-like transported object exists between the second ejection port and the first suction port, the second Even if the ejection device is not controlled to stop the ejection of air from the second ejection port, it is possible to effectively prevent the foreign matter from being rolled up by the air ejected from the second ejection port.

FIG. 1 is a schematic side view showing an opposed air blow according to a first embodiment of the present invention. FIG. 2 is a view for explaining the air flow when the sheet-like transported article passes between the first jet port and the second suction port in the opposed air blow of FIG. 1. FIG. 3 is a diagram for explaining the air flow when there is no sheet-like transported object between the first jet port and the second suction port in the opposed air blow of FIG. 1. FIG. 4 is a schematic side view showing an opposed air blow according to a second embodiment of the present invention. FIG. 5 is a diagram for explaining the flow of air when there is no sheet-like transported object between the first ejection port and the second suction port in the opposed air blow of FIG. 4. FIG. 6 is a schematic side view showing an opposed air blow according to a third embodiment of the present invention. FIG. 7 is a view for explaining the air flow when there is no sheet-like transported object between the first jet port and the second suction port in the opposed air blow of FIG. FIG. 8 is a schematic side view showing a conventional air blow. FIG. 9 is a diagram for explaining the flow of air when there is no sheet-like transported object in the air ejection direction from the first ejection port in the air blow of FIG. 8.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic side view showing an opposed air blow according to a first embodiment of the present invention. FIG. 2 is a view for explaining the air flow when the sheet-like transported article passes between the first jet port and the second suction port in the opposed air blow of FIG. 1. FIG. 3 is a diagram for explaining the air flow when there is no sheet-like transported object between the first jet port and the second suction port in the opposed air blow of FIG. 1.

  As shown in FIG. 1, the opposed air blow 10 a according to the present embodiment is a sheet-like transported sheet 20 having a first surface 21 and a second surface 22 facing each other. The conveyance mechanism 11 that conveys the two surfaces 22 in a predetermined conveyance direction 29 in a state where the two surfaces 22 are exposed, and the first surface 21 of the sheet-like conveyance object 20 that is being conveyed by the conveyance mechanism 11 are With respect to the conveyance direction 29 with respect to the conveyance direction 29 with respect to the 2nd surface 22 of the 1st ejection apparatus 121 which has the 1st ejection port 131 which ejects air in the direction inclined only by the acute angle, and the conveyance mechanism 11 in the sheet-like conveyed product And a second ejection device 122 having a second ejection port 132 that ejects air in a direction inclined by a predetermined obtuse angle, and the first ejection port 131 as well as being located downstream of the first ejection port 131 in the transport direction 29. Erupted from A first suction device 141 having a first suction port 151 for sucking air bounced off by the first surface 21 of the sheet-like transported object 20 being transported by the feeding mechanism 11, and a transport direction 29 with respect to the second ejection port 132. The second suction port 152 is located on the upstream side and has a second suction port 152 that sucks air bounced from the second surface 22 of the sheet-like transported object 20 being transported by the transport mechanism 11 while being ejected from the second spout 132. A suction device 142. In the present embodiment, for example, the sheet-like conveyed product 20 is a glass substrate having a thickness of 1 mm or less.

  In the present embodiment, as shown in FIG. 1, the transport mechanism 11 has a plurality of rotating rollers. The rotating rollers of the transport mechanism 11 are arranged at the same height position with their rotation axes oriented horizontally and parallel to each other, and are rotatably supported by bearings (not shown). Thereby, the sheet-like conveyed product 20 placed on the rotating roller is horizontally supported by the rotating roller in such a manner that the first surface 21 and the second surface 22 facing each other are exposed. In the present embodiment, the upper surface of the sheet-like conveyed product 20 is the first surface 21, and the lower surface is the second surface 22.

  A rotation drive unit (for example, a motor) (not shown) is connected to the transport mechanism 11. When the respective rotation rollers of the conveyance mechanism 11 are rotationally driven, for example, counterclockwise in FIG. 1 by the rotation driving unit, the sheet-like conveyance object 20 supported on the rotation roller is directed leftward in FIG. It is transported in the transport direction 29.

  In the present embodiment, as shown in FIG. 1, the first ejection device 121 is disposed above the sheet-like transported object 20 being transported by the transport mechanism 11, and the second ejection device 122 is the first ejection It is arranged below the sheet-like conveyed product 20 on the downstream side in the conveying direction 29 with respect to the apparatus 121.

  As shown in FIG. 1, each of the first ejection device 121 and the second ejection device 122 has a cylindrical shape when viewed from the side, and is transported so that the lower end portion is located downstream of the upper end portion in the transport direction 29. It is inclined at a predetermined angle with respect to the direction 29. The first jet 131 is provided at the lower end of the first jet device 121, and the second jet 132 is provided at the upper end of the second jet device 122. For example, the interval between the first jet port 131 and the first surface 21 of the sheet-like transported object 20 being transported by the transport mechanism 11 is 1 mm to 5 mm, and the second jet port 132 and the sheet-like transported object 20 are. The distance between the second surface 22 is 1 mm to 5 mm.

  Moreover, the upper end part of the 1st ejection apparatus 121 and the lower end part of the 2nd ejection apparatus 122 are each connected to the compressed air generator (not shown) (for example, blower), respectively, and the 1st ejection from the compressed air generator The air supplied to the device 121 is ejected from the first ejection port 131 in a direction inclined by a predetermined acute angle (for example, 15 ° to 60 °) with respect to the conveying direction, and the second ejection device 122 is ejected from the compressed air generator. The air supplied to the air is ejected from the second ejection port 132 in a direction inclined by a predetermined obtuse angle (for example, 15 ° to 60 °) with respect to the transport direction. For example, the flow rate of air ejected from the first ejection port 131 is 1000 L / min to 10000 L / min, and the flow rate of air ejected from the second ejection port 132 is 1000 L / min to 10000 L / min. The air may be continuously ejected from the first ejection port 131 and the second ejection port 132, or may be repeatedly ejected in a pulse shape.

  In the present embodiment, the first jet port 131 and the second jet port 132 are each perpendicular to the transport direction 29 and parallel to the sheet-like transported object 20 being transported by the transport mechanism 11 (that is, FIG. 1). In a direction perpendicular to the paper surface). Thereby, air is efficiently ejected over the width direction perpendicular to the conveyance direction 29 of the sheet-like conveyance object 20.

  As shown in FIG. 1, the first suction device 141 is disposed on the downstream side in the transport direction 29 with respect to the first ejection device 121 and above the sheet-like transported object 20 being transported by the transport mechanism 11. The two suction devices 142 are disposed below the sheet-like transported material 20 on the upstream side in the transport direction 29 with respect to the second ejection device 122.

  The first suction port 151 is provided on the lower surface of the first suction device 141, and a first flow path 171 communicating with the first suction port 151 is provided in the first suction device 141 in the transport direction in a side view. 29 is provided so as to extend in a direction inclined by a predetermined acute angle. Further, the second suction port 152 is provided on the upper surface of the second suction device 142, and a second flow path 172 communicating with the second suction port 152 is provided in the second suction device 142 in a side view. It is provided so as to extend in a direction inclined by a predetermined obtuse angle with respect to the transport direction 29. For example, the interval between the first suction port 151 and the first surface 21 of the sheet-like transported object 20 is 1 mm to 5 mm, and between the second suction port 152 and the second surface 22 of the sheet-like transported product 20. Is 1 mm to 5 mm.

  A suction exhaust device (for example, a blower) (not shown) is connected to the upper end portion of the first flow path 171 and the lower end portion of the second flow path 172, respectively. By operating the suction / exhaust device, a laminar flow is formed in the first flow path 171 in a direction inclined by a predetermined acute angle with respect to the transport direction 29 in a side view, and as shown in FIG. In addition, the air ejected from the first ejection port 131 and bounced back by the first surface 21 of the sheet-like conveyed product 20 is smoothly sucked from the first suction port 151. In addition, by operating the suction / exhaust device, a laminar flow is formed in the second flow path 172 in a direction inclined by a predetermined obtuse angle with respect to the transport direction 29 in a side view. As shown, the air ejected from the second ejection port 132 and bounced back by the second surface 22 of the sheet-like conveyed product 20 is smoothly sucked from the second suction port 152. For example, the flow rate of air sucked from the first suction port 151 is 1000 L / min to 10000 L / min, and the flow rate of air sucked from the second suction port 152 is 1000 L / min to 10000 L / min.

  In the present embodiment, as shown in FIG. 3, air ejected from the first ejection port 131 when the sheet-like conveyed product 20 does not exist between the first ejection port 131 and the second suction port 152. Flows into the second suction port 152, and the air jetted from the second jet port 132 when the sheet-like conveyed product 20 does not exist between the second jet port 132 and the first suction port 151. Flows into the first suction port 151.

  Specifically, for example, the second suction port 152 is located on an extension line in the ejection direction of air ejected from the first ejection port 131, and the ejection direction of air ejected from the second ejection port 132 is extended. The first suction port 151 is located on the line. Thereby, when the sheet-like conveyed product 20 does not exist between the first ejection port 131 and the second suction port 152, the air ejected from the first ejection port 131 is effective for the second suction port 152 due to inertia. Can flow into. In addition, when no sheet-like transported object exists between the second jet port 132 and the first suction port 151, the air jetted from the second jet port 132 effectively flows into the first suction port 151 due to inertia. Can do.

  In the present embodiment, as shown in FIG. 3, in the side view, the inner surface of the first flow path 171 on the upstream side in the transport direction 29 is curved so as to protrude upstream in the transport direction 29, and the second flow path The inner surface of 172 on the downstream side in the transport direction 29 is curved so as to protrude downstream in the transport direction 29. As a result, the air that is ejected from the second ejection port 132 and flows into the first suction port 151 is smoothly guided and sucked along the inner surface of the first flow path 171 on the upstream side in the transport direction 29, and the first ejection The air ejected from the outlet 131 and flowing into the second suction port 152 is smoothly guided and sucked along the inner surface of the second flow path 172 on the downstream side in the transport direction 29.

  Next, the operation of the present embodiment as described above will be described.

  A sheet-like sheet-like conveyed product 20 is placed on the rotating roller of the conveying mechanism 11 with the first surface 21 and the second surface 22 exposed, and is conveyed in the conveying direction 29 by the rotation of each rotating roller. .

  Air is ejected from the first ejection port 131 and the second ejection port 132, and air is sucked from the first suction port 151 and the second suction port 152, respectively.

  As shown in FIG. 2, when the sheet-like conveyed product 20 being conveyed by the conveyance mechanism 11 passes between the first ejection port 131 and the second suction port 152, the air ejected from the first ejection port 131 is In addition, it collides with the first surface 21 of the sheet-like conveyed product 20 and is bounced back, and foreign matter adhering to the first surface 21 is blown off by the air. Then, the air bounced off by the first surface 21 of the sheet-like transported object 20 flows into the first suction port 151 together with the foreign matter blown off from the first surface 21. As a result, a laminar flow is formed between the first jet port 131 and the first suction port 151, and the foreign matter is effectively prevented from being rolled up by the air jetted from the first jet port 131.

  Further, when the sheet-like conveyed product 20 being conveyed by the conveying mechanism 11 passes between the second jet port 132 and the first suction port 151, the air ejected from the second jet port 132 is the sheet-like conveyed product. 20 hits the second surface 22 and bounces off, and the foreign matter adhering to the second surface 22 is blown off by the air. Then, the air bounced off by the second surface 22 of the sheet-like conveyed product 20 flows into the second suction port 152 together with the foreign matter blown off from the second surface 22. As a result, a laminar flow is formed between the second jet port 132 and the second suction port 152, and the foreign matter is effectively prevented from being rolled up by the air jetted from the second jet port 132.

  On the other hand, as shown in FIG. 3, when the sheet-like conveyed product 20 does not exist between the first ejection port 131 and the second suction port 152, the air ejected from the first ejection port 131 is the second suction port. It flows into 152. As a result, a laminar flow is formed between the first ejection port 131 and the second suction port 152, and it is not necessary to stop the ejection of air from the first ejection port 131 by controlling the first ejection device 121. The hoisting of the foreign matter by the air ejected from the first ejection port 131 is effectively prevented.

  In addition, when the sheet-like conveyed product 20 does not exist between the second ejection port 132 and the first suction port 151, the air ejected from the second ejection port 132 flows into the first suction port 151. As a result, a laminar flow is formed between the second jet port 132 and the first suction port 151, and it is not necessary to stop the jet of air from the second jet port 132 by controlling the second jet device 122. The hoisting of the foreign matter by the air ejected from the second ejection port 132 is effectively prevented.

  According to the present embodiment as described above, when the sheet-like conveyed product 20 does not exist between the first ejection port 131 and the second suction port 152, the air ejected from the first ejection port 131 is the second. Since the air flows into the suction port 152, the first jet device 121 is controlled so that the air jetted from the first jet port 131 is not stopped without stopping the jet of air from the first jet port 131. It is possible to effectively prevent foreign matter from being rolled up. In addition, when the sheet-like conveyed product 20 does not exist between the second ejection port 132 and the first suction port 151, the air ejected from the second ejection port 132 flows into the first suction port 151. Therefore, even if the second ejection device 122 is not controlled to stop the ejection of air from the second ejection port 132, it is possible to effectively prevent the foreign matter from being rolled up by the air ejected from the second ejection port 132.

  Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 4 is a schematic side view showing an opposed air blow according to a second embodiment of the present invention. FIG. 5 is a diagram for explaining the flow of air when there is no sheet-like transported object between the first ejection port and the second suction port in the opposed air blow of FIG. 4.

  As shown in FIGS. 4 and 5, in the opposed air blow 10 b according to the second embodiment, the end of the first ejection port 131 on the first suction port 151 side in the first ejection device 121, and the first suction device 141 is connected to the end of the first suction port 151 on the first jet port 131 side, and is connected to the end of the second jet port 132 of the second jet device 122 on the second suction port 152 side. The end of the second suction port 152 on the second jet port 132 side in the two suction device 142 is connected to each other.

  Other configurations are substantially the same as those of the first embodiment shown in FIGS. 4 and 5, the same parts as those of the first embodiment shown in FIGS. 1 to 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the present embodiment, when the sheet-like conveyance object 20 being conveyed by the conveyance mechanism 11 passes between the first ejection port 131 and the second suction port 152, the air ejected from the first ejection port 131 is While colliding with the first surface 21 of the sheet-like transported object 20 and being bounced back, foreign matter adhering to the first surface 21 is blown off by the air. And the air bounced off by the 1st surface 21 of the sheet-like conveyance thing 20 is the edge part by the side of the 1st suction port 151 of the 1st ejection port 131, and the edge part by the side of the 1st ejection port 131 of the 1st suction port 151. Is smoothly guided toward the first suction port 151 by the connecting portion 161 that connects to the first suction port 151, and flows into the first suction port 151 together with the foreign matter blown off from the first surface 21 of the sheet-like conveyed product 20. As a result, a laminar flow is effectively formed between the first jet port 131 and the first suction port 151, and foreign matter winding by the air jetted from the first jet port 131 is more effectively prevented. .

  Further, when the sheet-like conveyed product 20 being conveyed by the conveying mechanism 11 passes between the second jet port 132 and the first suction port 151, the air ejected from the second jet port 132 is the sheet-like conveyed product. 20 hits the second surface 22 and bounces off, and the foreign matter adhering to the second surface 22 is blown off by the air. And the air bounced off by the 2nd surface 22 of the sheet-like conveyed product 20 is the edge part by the side of the 2nd suction port 152 of the 2nd ejection port 132, and the edge part by the side of the 2nd ejection port 132 of the 2nd suction port 152. Is smoothly guided toward the second suction port 152 by the connecting portion 162 connecting the two and the foreign matter blown off from the second surface 22 of the sheet-like conveyed product 20 and flows into the second suction port 152. As a result, a laminar flow is effectively formed between the second jet port 132 and the second suction port 152, and the roll-up of foreign matter by the air jetted from the second jet port 132 is further effectively prevented. .

  On the other hand, as shown in FIG. 5, when the sheet-like conveyed product 20 does not exist between the first jet port 131 and the second suction port 152, and when the sheet-like conveyed product 20 is the second jet port 132 and the first When there is no gap with the suction port 151, it is the same as in the case of the first embodiment described with reference to FIG.

  According to the second embodiment as described above, the air ejected from the first ejection port 131 and bounced back by the first surface 21 of the sheet-like conveyance object 20 being conveyed by the conveyance mechanism 11 is the first ejection port. 131 is smoothly guided toward the first suction port 151 by the connecting portion 161 that connects the end of the first suction port 151 on the first suction port 151 side and the end of the first suction port 151 on the first ejection port 131 side. The first suction port 151 can be effectively sucked. Further, the air ejected from the second ejection port 132 and bounced back by the second surface 22 of the sheet-like conveyed product 20 being conveyed by the conveyance mechanism 11 is the end of the second ejection port 132 on the second suction port 152 side. Is smoothly guided toward the second suction port 152 by the connecting portion 162 that connects the second suction port 152 to the end of the second suction port 152 on the second jet port 132 side, and is effectively sucked from the second suction port 152. Can be done.

  In the present embodiment, as shown in FIGS. 4 and 5, the end of the first jet 131 on the first suction port 151 side, and the end of the first suction port 151 on the first jet port 131 side, The connecting portion 161 that connects the two has a planar shape, and connects the end of the second jet port 132 on the second suction port 152 side and the end of the second suction port 152 on the second jet port 132 side. The connecting portion 162 ′ to be also has a planar shape, but is not limited to this, and as shown in FIGS. 6 and 7, the end portion of the first jet port 131 on the first suction port 151 side and the first portion The connecting portion 161 ′ that connects the end portion of the suction port 151 on the first jet port 131 side is curved, and the end portion of the second jet port 132 on the second suction port 152 side and the second suction port 152 are connected to each other. The connecting portion 162 ′ that connects the end on the second jet outlet 132 side may also be curved (opposite according to the third embodiment). Air blow 10c). Specifically, for example, the connecting portion 161 ′ that connects the end portion of the first jet port 131 on the first suction port 151 side and the end portion of the first suction port 151 on the first jet port 131 side has a side view. 2, the end of the second jet port 132 on the second suction port 152 side has an arc shape that curves so as to approach the first surface 21 side of the sheet-like transported product 20 being transported by the transport mechanism 11. The connecting portion 162 ′ that connects the end of the second suction port 152 on the second jet port 132 side is closer to the second surface 22 side of the sheet-like transported object 20 being transported by the transport mechanism 11 in a side view. It has a circular arc shape that is curved.

  According to such an aspect, the air ejected from the first ejection port 131 and bounced back by the first surface 21 of the sheet-like conveyed product 20 being conveyed by the conveyance mechanism 11 is the first suction of the first ejection port 131. The connecting portion 161 ′ that connects the end portion on the mouth 151 side and the end portion on the first jet port 131 side of the first suction port 151 is guided more smoothly toward the first suction port 151, and the first Suction can be more effectively sucked from the suction port 151. Further, the air ejected from the second ejection port 132 and bounced back by the second surface 22 of the sheet-like conveyed product 20 being conveyed by the conveyance mechanism 11 is the end of the second ejection port 132 on the second suction port 152 side. Is connected more smoothly toward the second suction port 152 by the connecting portion 162 ′ that connects the second suction port 152 to the end of the second suction port 152 on the second jet port 132 side. Can be aspirated.

  In the first to third embodiments described above, the upper surface of the sheet-like conveyed product 20 being conveyed by the conveying mechanism 11 is inclined from the first ejection port 131 by a predetermined acute angle with respect to the conveying direction 29. Air is ejected in the direction in which the air is ejected, and air is ejected from the second ejection port 132 in a direction inclined by a predetermined obtuse angle with respect to the transport direction 29 with respect to the lower surface of the sheet-like transported object 20 being transported by the transport mechanism 11. However, the present invention is not limited to this, and air is ejected from the first ejection port 131 in a direction inclined by a predetermined acute angle with respect to the conveyance direction 29 with respect to the lower surface of the sheet-like conveyance object 20 being conveyed by the conveyance mechanism 11. Then, air may be ejected from the second ejection port 132 in a direction inclined by a predetermined obtuse angle with respect to the transport direction 29 with respect to the upper surface of the sheet-like transported object 20 being transported by the transport mechanism 11. In this case, the lower surface of the sheet-like conveyed product 20 is the first surface, and the upper surface is the second surface.

  Further, the opposed air blows 10a to 10c according to the first to third embodiments described above are caused by the air ejected from the first ejection port 131 and the second ejection port 132, so that the first surface 21 of the sheet-like conveyed product 20 is obtained. However, the present invention is not limited to this. For example, the air blown out from the first jet port 131 and the second jet port 132 causes the sheet-like conveyed product 20 to be blown away. The first surface 21 and the second surface 22 may be used for drying, or the first surface 21 and the second surface 22 of the sheet-like transported product 20 may be used for cooling.

10a counter air blow 10b counter air blow 10c counter air blow 11 transport mechanism 121 first ejection device 122 second ejection device 121 ′ first ejection device 122 ′ second ejection device 131 first ejection port 132 second ejection port 141 first Suction Device 142 Second Suction Device 151 First Suction Port 152 Second Suction Port 161 Connection Portion 162 Connection Portion 161 ′ Connection Portion 162 ′ Connection Portion 20 Sheet-like Conveyed Material 21 First Surface 22 Second Surface 312 Ejection Device 314 Suction Device 319 Other device 320 Sheet-like conveyed object 321 Surface

Claims (5)

A transport mechanism for transporting a sheet-shaped transported object having a first surface and a second surface that are in a sheet-like shape and facing each other in a predetermined transport direction in a manner in which the first surface and the second surface are exposed;
A first ejection device having a first ejection port that ejects air in a direction inclined by a predetermined acute angle with respect to the conveyance direction with respect to the first surface of the sheet-like conveyance object being conveyed by the conveyance mechanism; ,
A second ejection device having a second ejection port for ejecting air in a direction inclined by a predetermined obtuse angle with respect to the conveyance direction with respect to the second surface of the sheet-like conveyance object being conveyed by the conveyance mechanism; ,
Air that is located downstream in the transport direction with respect to the first jet outlet and is repelled by the first surface of the sheet-like transported object being transported by the transport mechanism and being transported by the transport mechanism. A first suction device having a first suction port for suction;
Air that is located upstream of the second ejection port in the conveyance direction and is repelled by the second surface of the sheet-like conveyance object being conveyed from the second ejection port and being conveyed by the conveyance mechanism. A second suction device having a second suction port for suction;
With
When the sheet-like conveyed product does not exist between the first jet port and the second suction port, the air jetted from the first jet port flows into the second suction port,
When the sheet-like conveyed product does not exist between the second jet port and the first suction port, the air jetted from the second jet port flows into the first suction port. This is an opposed air blow. The second suction port is located on an extension line in the ejection direction of air ejected from the first ejection port;
2. The opposed air blow according to claim 1, wherein the first suction port is located on an extension line in the ejection direction of air ejected from the second ejection port. Each of the first jet port and the second jet port has an elongated shape extending in a direction perpendicular to the transport direction and parallel to the sheet-shaped transport object being transported by the transport mechanism. The opposed air blow according to claim 1 or 2, characterized in that The end on the first suction port side of the first jet port and the end on the first jet port side of the first suction port are connected to each other,
The end portion on the second suction port side of the second jet port and the end portion on the second jet port side of the second suction port are connected to each other. The opposed air blow according to any one of the above. The connecting portion that connects the first suction port side end portion of the first jet port and the first suction port side end portion of the first suction port is curved,
The connection portion that connects the end portion of the second jet port on the second suction port side and the end portion of the second suction port on the second jet port side is also curved. 4. The opposed air blow according to 4.

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