JP7131035B2 - Bonding device - Google Patents

Description

The present invention relates to a gluing device.

The bonding device disclosed in Patent Document 1 discharges an adhesive to bond two cloths together. The bonding device includes a nozzle, an upper transfer roller, and a lower transfer roller. The nozzle ejects the adhesive toward the lower cloth. The upper transfer roller transfers the lower cloth and the upper cloth to which the adhesive has been applied while pressing them against the lower transfer roller. The bonding device includes a cloth edge sensor and a reflector. The light emitting portion of the cloth edge sensor emits light toward the reflector. The reflector reflects the light emitted from the cloth edge sensor. The light detection section of the cloth edge sensor can detect the light reflected by the reflector. A cloth edge sensor determines whether or not there is cloth above the reflector. The bonding device controls the discharge of the adhesive from the nozzle and the transfer of the upper cloth and the lower cloth by the upper transfer roller and the lower transfer roller based on the detection result of the cloth edge sensor.

JP 2011-106065 A

In the bonding apparatus of Patent Document 1, the cloth passes over the reflecting plate when the cloth is transferred by the upper transfer roller and the lower transfer roller. Therefore, debris from the cloth or dust in the air may adhere to the upper surface of the reflector when the cloth is transported. At this time, the dust or dirt blocks the light emitted from the light emitting portion of the cloth edge sensor from reaching the reflecting plate, and the amount of light detected by the light detecting portion of the cloth edge sensor is reduced. Therefore, the cloth edge sensor may not be able to accurately detect the edge of the cloth.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a bonding apparatus capable of ensuring accuracy in detecting the edges of sheets when aligning two sheets.

According to the first aspect of the present invention, a nozzle provided on the upper side of a lower sheet and having a discharge port for discharging an adhesive; a supply mechanism for supplying the adhesive to the nozzle; a conveying mechanism for vertically sandwiching the lower sheet to which the adhesive is attached and the upper sheet overlapping the lower sheet from above in the conveying direction downstream in the conveying direction of the conveying mechanism; a discharge/conveyance control unit that controls driving of a supply mechanism to discharge the adhesive from the discharge port, press the lower sheet and the upper sheet to each other via the adhesive, and convey the adhesive. a light-emitting unit that emits light toward a detection position that is a predetermined position upstream in the transport direction from the transport mechanism, and a light-receiving unit that can receive the light emitted by the light-emitting unit; A detection unit that detects whether or not the lower sheet and the upper sheet are present at the detection position based on the amount of light received, is connected to a flow pipe through which air flows, and injects air toward the detection unit. and an air control unit for controlling the injection of air from the injection port. and the discharge/conveyance control unit applies the adhesion to the lower specific end, which is the end of the lower sheet, on one side of a specific direction orthogonal to the conveying direction and the vertical direction. While applying the agent, the lower specific end portion and the upper specific end portion, which is the end portion of the upper sheet on the other side opposite to the one side, are pressed against each other and conveyed. It is detected whether or not the lower specific end portion of the lower sheet is at the detection position, and the bonding device includes a lower support portion that supports the lower sheet from below and an upstream portion in the conveying direction with respect to the nozzle. a lower nipping roller projecting upward from the lower support portion at the side thereof, rotatable about the conveying direction as an axial direction, and nipping the lower sheet between itself and a support member supporting the upper sheet from below; By controlling the lower nipping motor that rotates the nipping roller and the driving of the lower nipping motor, the lower nipping roller is rotated to the second position when the detection unit detects that the lower specific end portion is at the detection position. The lower sheet is rotated in one output direction to move to the other side, and when the detection unit detects that the specific lower edge is not present at the detection position, the lower nipping roller is rotated in the first output direction. a lower motor control unit for rotating and driving in a second output direction opposite to the lower sheet to move the lower sheet to the one side; Further, the size of the gap between the lower support portion and the discharge port is set to a bonding gap that is the size when the adhesive is discharged onto the lower sheet, and a retraction gap that is larger than the bonding gap. a gap changing mechanism capable of changing the gap between the gap changing mechanism, a change switch for receiving a drive instruction for the gap changing mechanism, and a case where the change switch receives the instruction when the ejection and conveyance control unit stops driving the transport mechanism and the supply mechanism a gap control unit for controlling the drive of the gap changing mechanism and changing the gap between the lower support part and the nozzle from the adhesion gap to the retraction gap, wherein the air control unit controls the gap control unit There is provided a bonding device characterized in that air is jetted during drive control of the gap changing mechanism.
According to the second aspect of the present invention, a nozzle provided on the upper side of a lower sheet and having a discharge port for discharging an adhesive; a supply mechanism for supplying the adhesive to the nozzle; a conveying mechanism for vertically sandwiching the lower sheet to which the adhesive is attached and the upper sheet overlapping the lower sheet from above in the conveying direction downstream in the conveying direction of the conveying mechanism; a discharge/conveyance control unit that controls driving of a supply mechanism to discharge the adhesive from the discharge port, press the lower sheet and the upper sheet to each other via the adhesive, and convey the adhesive. a light-emitting unit that emits light toward a detection position that is a predetermined position upstream in the transport direction from the transport mechanism, and a light-receiving unit that can receive the light emitted by the light-emitting unit; A detection unit that detects whether or not the lower sheet and the upper sheet are present at the detection position based on the amount of light received, is connected to a flow pipe through which air flows, and injects air toward the detection unit. and an air control unit for controlling the injection of air from the injection port. and the discharge/conveyance control unit applies the adhesion to the lower specific end, which is the end of the lower sheet, on one side of a specific direction orthogonal to the conveying direction and the vertical direction. While applying the agent, the lower specific end portion and the upper specific end portion, which is the end portion of the upper sheet on the other side opposite to the one side, are pressed against each other and conveyed. an upper detection unit for detecting whether or not the upper specific end of the upper sheet is at the upper detection position which is the detection position for the upper sheet; and The bonding device includes a lower detection portion that detects whether or not the upper sheet is at the lower detection position, which is the detection position. By controlling the driving of an upper nipping roller that nips the upper sheet between the upper sheet and the support member, an upper nipping motor that rotationally drives the upper nipping roller, and the upper nipping motor, the upper detection is performed. When the upper detector detects that the upper specific edge is at the position, the upper nipping roller is rotationally driven in the third output direction to move the upper sheet to the one side and reach the upper detection position. When the upper detector detects that there is no upper specific end, the upper nipping roller is moved in the direction opposite to the third output direction. an upper motor control section that rotates in a fourth output direction to move the upper sheet to the other side; a lower support section that supports the lower sheet from below; and an upstream side in the conveying direction with respect to the nozzles. a lower nipping roller that projects upward from the lower support portion, is rotatable about the conveying direction as an axial direction, and nips the lower sheet between itself and the support member; and a lower nipping motor that rotationally drives the lower nipping roller. Then, by controlling the drive of the lower nipping motor, when the lower detector detects that the lower specific end portion is at the lower detection position, the lower nipping roller is rotationally driven in the first output direction. to move the lower sheet to the other side, and when the lower detection unit detects that the specific lower end portion is not present at the lower detection position, the lower nipping roller is moved to the second output direction opposite to the first output direction. a lower motor control section for rotating and driving in two output directions to move the lower sheet to the one side; a gap change mechanism capable of changing between a bonding gap that is the size of the adhesive when it is discharged and a retraction gap that is larger than the bonding gap; a change switch that receives a drive instruction for the gap changing mechanism; and the discharge. When the change switch receives an instruction when the transport control unit stops driving the transport mechanism and the supply mechanism, driving of the gap changing mechanism is controlled to change the gap between the lower support part and the nozzle to the adhesion gap. and a gap control section for changing the gap from the retraction to the retraction gap, wherein the air control section jets air when the gap control section controls the driving of the gap changing mechanism.

In the second and third aspects, the size of the gap between the lower support portion and the ejection port is larger than the adhesive gap, which is the size when the adhesive is ejected onto the lower sheet, and the adhesive gap. a gap change mechanism that can be changed between a retraction gap; a change switch that receives a drive instruction for the gap change mechanism; a gap control unit that controls driving of the gap changing mechanism and changes the gap between the lower support part and the nozzle from the bonding gap to the retraction gap when the air control unit is configured to: Air may be injected when the clearance control unit drives and controls the clearance changing mechanism. The operator operates the change switch to increase the gap between the lower support and the nozzle. At this time, the air control unit injects air to blow off dust and debris adhering to the detection position. When the gap between the lower support and the nozzle is the retraction gap, the operator can place the sheet on the lower support. That is, since air is always jetted every time a sheet is placed, the bonding device can prevent forgetting to clean the detection section. Since the air is jetted when the gap between the lower support portion and the nozzle is changed from the bonding gap to the retracting gap, the bonding apparatus can prevent the sheets from being disturbed due to the air being applied to the arranged sheets.
In the second and third aspects, the detection section has a reflection section provided on the side opposite to the light emission section with respect to the detection position and reflecting the light emitted by the light emission section toward the light reception section, The injection port may be capable of injecting air toward the reflecting section. Scraps or dust may adhere to the reflective portion due to static electricity or the like caused by friction between the upper sheet and the lower sheet when conveyed. The debris or dust blocks the light emitted from the light-emitting portion of the detection portion in the process of reaching the light-receiving portion via the reflection portion. The air blows off dust and dirt adhering to the reflector. Therefore, the bonding apparatus can maintain the detection accuracy of whether or not the upper sheet and the lower sheet are present at the detection position, and can ensure the detection accuracy of the edges of the upper sheet and the lower sheet.

According to the third aspect of the present invention, a nozzle provided on the upper side of a lower sheet and having a discharge port for discharging an adhesive; a supply mechanism for supplying the adhesive to the nozzle; a conveying mechanism for vertically sandwiching the lower sheet to which the adhesive is attached and the upper sheet overlapping the lower sheet from above in the conveying direction downstream in the conveying direction of the conveying mechanism; a discharge/conveyance control unit that controls driving of a supply mechanism to discharge the adhesive from the discharge port, press the lower sheet and the upper sheet to each other via the adhesive, and convey the adhesive. a light-emitting unit that emits light toward a detection position that is a predetermined position upstream in the transport direction from the transport mechanism, and a light-receiving unit that can receive the light emitted by the light-emitting unit; A detection unit that detects whether or not the lower sheet and the upper sheet are present at the detection position based on the amount of light received, is connected to a flow pipe through which air flows, and injects air toward the detection unit. and an air control unit for controlling the injection of air from the injection port. and the discharge/conveyance control unit applies the adhesion to the lower specific end, which is the end of the lower sheet, on one side of a specific direction orthogonal to the conveying direction and the vertical direction. While applying the agent, the lower specific end portion and the upper specific end portion, which is the end portion of the upper sheet on the other side opposite to the one side, are pressed against each other and conveyed. It is detected whether or not the upper specific edge of the upper sheet is at the detection position, and the bonding device is rotatable with a support member supporting the upper sheet from below and with the conveying direction as an axial direction. an upper nipping roller that nips the upper sheet from above between the supporting members; an upper nipping motor that rotationally drives the upper nipping roller; When the detection unit detects that there is an upper specific end, the upper nipping roller is rotationally driven in the third output direction to move the upper sheet to the one side, and the upper specific end is moved to the detection position. an upper motor control section for rotating and driving the upper nipping roller in a fourth output direction opposite to the third output direction to move the upper sheet to the other side when the detecting section detects that there is no Further, the detection unit is provided on the side opposite to the light emitting unit with respect to the detection position, and the light emitting unit emits light a reflecting portion that reflects the light toward the light receiving portion, the injection port is capable of injecting air toward the reflecting portion; a movement mechanism movable between an operating position located upstream and a retracted position located on the one side of the specific direction with respect to the operating position; a movement switch for receiving an instruction to drive the movement mechanism; When the movement switch receives an instruction to stop the driving of the transport mechanism and the supply mechanism by the ejection transport control unit, driving of the moving mechanism is controlled to move the support member from the operating position to the retracted position. a movement control unit for performing movement, wherein the reflecting unit is provided on the lower surface of the supporting member, and the injection port is provided so as to be capable of injecting air toward the reflecting unit when the supporting member is at the retracted position; The bonding apparatus is characterized in that, when the movement switch receives an instruction, the air control section jets air after the support member moves from the operating position to the retracted position.
According to the fourth aspect of the present invention, a nozzle provided on the upper side of a lower sheet and having an ejection port for ejecting an adhesive, a supply mechanism for supplying the adhesive to the nozzle, and the lower sheet with respect to the nozzle a conveying mechanism for vertically sandwiching the lower sheet to which the adhesive is attached and the upper sheet overlapping the lower sheet from above in the conveying direction downstream in the conveying direction of the conveying mechanism; a discharge/conveyance control unit that controls driving of a supply mechanism to discharge the adhesive from the discharge port, press the lower sheet and the upper sheet to each other via the adhesive, and convey the adhesive. a light-emitting unit that emits light toward a detection position that is a predetermined position upstream in the transport direction from the transport mechanism, and a light-receiving unit that can receive the light emitted by the light-emitting unit; A detection unit that detects whether or not the lower sheet and the upper sheet are present at the detection position based on the amount of light received, is connected to a flow pipe through which air flows, and injects air toward the detection unit. and an air control unit for controlling the injection of air from the injection port. and the discharge/conveyance control unit applies the adhesion to the lower specific end, which is the end of the lower sheet, on one side of a specific direction orthogonal to the conveying direction and the vertical direction. While applying the agent, the lower specific end portion and the upper specific end portion, which is the end portion of the upper sheet on the other side opposite to the one side, are pressed against each other and conveyed. It is detected whether or not the lower specific end portion of the lower sheet is at the detection position, and the bonding device includes a lower support portion that supports the lower sheet from below and an upstream portion in the conveying direction with respect to the nozzle. a lower nipping roller projecting upward from the lower support portion at the side thereof, rotatable about the conveying direction as an axial direction, and nipping the lower sheet between itself and a support member supporting the upper sheet from below; By controlling the lower nipping motor that rotates the nipping roller and the driving of the lower nipping motor, the lower nipping roller is rotated to the second position when the detection unit detects that the lower specific end portion is at the detection position. The lower sheet is rotated in one output direction to move to the other side, and when the detection unit detects that the specific lower edge is not present at the detection position, the lower nipping roller is rotated in the first output direction. a lower motor control unit for rotating and driving in a second output direction opposite to the lower sheet to move the lower sheet to the one side; Further, the detection section has a reflection section provided on the side opposite to the light emission section with respect to the detection position and reflecting the light emitted by the light emission section toward the light reception section, and the injection port includes: Air can be jetted toward the reflecting portion, and in addition, the support member can be positioned at an operating position located upstream of the nozzle in the conveying direction, and at the one side in the specific direction with respect to the operating position. a moving mechanism capable of moving between a retracted position and a retracted position; a moving switch for receiving an instruction to drive the moving mechanism; a movement control unit that controls driving of the movement mechanism and moves the support member from the operating position to the retracted position when the The injection port is provided so as to be capable of injecting air toward the reflecting portion when the support member is at the retracted position, and the air control unit controls the movement of the support member when the movement switch receives an instruction. The bonding device is characterized by jetting air after moving from the operating position to the retracted position.
According to the fifth aspect of the present invention, a nozzle provided on the upper side of a lower sheet and having an ejection port for ejecting an adhesive, a supply mechanism for supplying the adhesive to the nozzle, and the lower sheet with respect to the nozzle a conveying mechanism for vertically sandwiching the lower sheet to which the adhesive is attached and the upper sheet overlapping the lower sheet from above in the conveying direction downstream in the conveying direction of the conveying mechanism; a discharge/conveyance control unit that controls driving of a supply mechanism to discharge the adhesive from the discharge port, press the lower sheet and the upper sheet to each other via the adhesive, and convey the adhesive. a light-emitting unit that emits light toward a detection position that is a predetermined position upstream in the transport direction from the transport mechanism, and a light-receiving unit that can receive the light emitted by the light-emitting unit; A detection unit that detects whether or not the lower sheet and the upper sheet are present at the detection position based on the amount of light received, is connected to a flow pipe through which air flows, and injects air toward the detection unit. and an air control unit for controlling the injection of air from the injection port. and the discharge/conveyance control unit applies the adhesion to the lower specific end, which is the end of the lower sheet, on one side of a specific direction orthogonal to the conveying direction and the vertical direction. While applying the agent, the lower specific end portion and the upper specific end portion, which is the end portion of the upper sheet on the other side opposite to the one side, are pressed against each other and conveyed. an upper detection unit for detecting whether or not the upper specific end of the upper sheet is at the upper detection position which is the detection position for the upper sheet; and The bonding device includes a lower detection portion that detects whether or not the upper sheet is at the lower detection position, which is the detection position. By controlling the driving of an upper nipping roller that nips the upper sheet between the upper sheet and the support member, an upper nipping motor that rotationally drives the upper nipping roller, and the upper nipping motor, the upper detection is performed. When the upper detector detects that the upper specific edge is at the position, the upper nipping roller is rotationally driven in the third output direction to move the upper sheet to the one side and reach the upper detection position. When the upper detector detects that there is no upper specific end, the upper nipping roller is moved in the direction opposite to the third output direction. an upper motor control section that rotates in a fourth output direction to move the upper sheet to the other side; a lower support section that supports the lower sheet from below; and an upstream side in the conveying direction with respect to the nozzles. a lower nipping roller that projects upward from the lower support portion, is rotatable about the conveying direction as an axial direction, and nips the lower sheet between itself and the support member; and a lower nipping motor that rotationally drives the lower nipping roller. Then, by controlling the drive of the lower nipping motor, when the lower detector detects that the lower specific end portion is at the lower detection position, the lower nipping roller is rotationally driven in the first output direction. to move the lower sheet to the other side, and when the lower detection unit detects that the specific lower end portion is not present at the lower detection position, the lower nipping roller is moved to the second output direction opposite to the first output direction. a lower motor control section for rotating and driving the lower sheet in two output directions to move the lower sheet to the one side; has a reflecting portion that reflects light emitted by the to the light-receiving portion toward the light-receiving portion, the injection port is capable of injecting air toward the reflecting portion; a movement mechanism movable between an operating position located upstream of the nozzle and a retracted position located on the one side of the specific direction with respect to the operating position; and a movement switch for receiving a drive instruction for the moving mechanism. and, when the movement switch receives an instruction when the transport mechanism and the supply mechanism are stopped by the ejection transport control unit, the drive of the transport mechanism is controlled, and the support member is moved from the operating position to the retracted position. the reflector is provided on the lower surface of the support member, and the injection port is capable of injecting air toward the reflector when the support member is at the retracted position. and wherein the air control unit jets air after the support member moves from the operating position to the retracted position when the movement switch receives an instruction. .
In the third, fourth and fifth aspects, when the operator operates the movement switch to move the supporting member to the retracted position, the operator can easily place the lower sheet on the lower supporting portion. At this time, the air control unit injects air to blow off dust and debris adhering to the detection position. That is, since air is always jetted every time a sheet is placed, the bonding device can prevent forgetting to clean the reflecting portion. Since air is jetted when the support member is moved from the operating position to the retracted position, the bonding apparatus can prevent the sheets from being disturbed by the air being applied to the arranged sheets.
According to the sixth aspect of the present invention, a nozzle provided on the upper side of a lower sheet and having an ejection port for ejecting an adhesive; a supply mechanism for supplying the adhesive to the nozzle; a conveying mechanism for vertically sandwiching the lower sheet to which the adhesive is attached and the upper sheet overlapping the lower sheet from above in the conveying direction downstream in the conveying direction of the conveying mechanism; a discharge/conveyance control unit that controls driving of a supply mechanism to discharge the adhesive from the discharge port, press the lower sheet and the upper sheet to each other via the adhesive, and convey the adhesive. a light-emitting unit that emits light toward a detection position that is a predetermined position upstream in the transport direction from the transport mechanism, and a light-receiving unit that can receive the light emitted by the light-emitting unit; A detection unit that detects whether or not the lower sheet and the upper sheet are present at the detection position based on the amount of light received, is connected to a flow pipe through which air flows, and injects air toward the detection unit. and an air control unit for controlling the injection of air from the injection port. and the conveying mechanism is downstream of the nozzle in the conveying direction and is rotatable about an axial direction orthogonal to the conveying direction and the vertical direction. a lower conveying roller that contacts the lower sheet from below; and an upper conveying roller that is rotatable about the axial direction and sandwiches the lower sheet and the upper sheet from above between the lower conveying roller; An upper conveying arm movably supporting the upper conveying roller between a contact position where the lower sheet and the upper sheet are sandwiched between the lower conveying roller and an upper position above the contact position. an upper drive unit connected to the upper transport arm and moving the upper transport roller between the contact position and the upper position via the upper transport arm; and the transport mechanism by the ejection transport control unit. an upper drive control section that controls the upper drive section to move the upper conveying roller from the contact position to the upper position when the supply mechanism is stopped, wherein the air control section controls the upper drive control section. However, there is provided a bonding apparatus characterized in that air is jetted when the upper conveying roller is moved from the contact position to the upper position.
Dust generated from the upper sheet and the lower sheet or dust in the air may adhere to the detection unit due to static electricity or the like caused by friction between the upper sheet and the lower sheet when they are conveyed. The debris or dust blocks the light emitted from the light emitting portion of the detecting portion in the process of reaching the light receiving portion. At this time, the amount of light received by the light-receiving section is reduced, which may lead to deterioration in the detection accuracy of the upper sheet and the lower sheet by the detection section. The air blows off dust and dirt adhering to the detector while the transport mechanism and the supply mechanism are stopped. Therefore, the detection section can maintain the detection accuracy of whether or not the upper sheet and the lower sheet are present at the detection position, and can ensure the detection accuracy of the edge portions of the upper sheet and the lower sheet.
When the upper transport roller is in the upper position, the operator can place the sheet. At this time, the air control section injects air to blow away the dust and dirt adhering to the detection section. That is, since air is always jetted every time a sheet is placed, the bonding device can prevent forgetting to clean the detection section. Since air is jetted when the upper conveying roller is moved from the contact position to the upper position, the bonding apparatus can prevent the sheets from being disturbed due to the air being applied to the arranged sheets.

In the first to sixth aspects, it is detected whether or not at least one of the upper sheet and the lower sheet conveyed by the conveying mechanism is present at an end detection position, which is a predetermined position upstream of the conveying mechanism in the conveying direction. The air control unit detects that the upper sheet and the lower sheet are not at the end detection position when the transport mechanism and the supply mechanism are driven by the discharge transport control unit. is detected, the air may be injected after a predetermined standby time has elapsed. When the bonding device bonds the upper sheet and the lower sheet, the upper sheet and the lower sheet always pass through the end detection position. After the upper sheet and the lower sheet have passed the end detection position, the air control section injects air to blow off dust and debris adhering to the detection position. That is, when the upper sheet and the lower sheet are adhered, air is always jetted when the adhesion is completed, so that the adhesion device can prevent forgetting to clean the detection section. Moreover, since the air is jetted after the upper sheet and the lower sheet are adhered, the adhering device can prevent the sheets from being disturbed by the air being applied to the upper sheet and the lower sheet.

The first to sixth aspects may include an adjustment section provided in the flow pipe for adjusting the injection amount of the air from the injection port. The amount of air jetted from the spout of the gluing device can be adjusted to prevent cleaning failures such as not blowing off dust and dirt adhering to the detection part, and to check whether the upper and lower sheets are at the detection position. detection accuracy can be maintained.

The first to sixth aspects are provided with a setting unit for setting an injection period of the air to be injected from the injection port by the air control unit, and the air control unit controls the injection period set by the setting unit, the injection You may control so that the said air may be injected from an opening. The amount of air jetted from the spout of the gluing device can be adjusted to prevent cleaning failures such as not blowing off dust and dirt adhering to the detection part, and to check whether the upper and lower sheets are at the detection position. detection accuracy can be maintained.

The first to sixth aspects may include a pipe support portion that supports the flow pipe and is capable of changing the opening direction of the injection port. Since the gluing device can change the opening direction of the injection port by the pipe support part that supports the flow pipe, the air can be reliably injected to the detection part, and the detection accuracy of whether the upper sheet and the lower sheet are at the detection position is improved. can be maintained.

In the first to sixth aspects, the pipe support section may support the flow pipe so as to be movable in the conveying direction. Since the bonding device can move the flow pipe in the conveying direction, it is possible to reliably inject air to the detection section, and to maintain the detection accuracy of whether or not the upper sheet and the lower sheet are present at the detection position.

The first to sixth aspects are provided with a light amount calculation unit that calculates the amount of light received by the light receiving unit, and a light amount determination unit that determines whether the light amount calculated by the light amount calculation unit is equal to or greater than a predetermined value, The light amount determination unit determines whether the light amount is equal to or greater than a predetermined value before the air control unit injects the air, and the air control unit determines that the light amount determination unit determines that the light amount is less than the predetermined value. In some cases, the air may be injected. The bonding device injects air when the amount of light received by the light receiving portion is less than a predetermined value. That is, the bonding device blows off with air only when debris or dust adheres to the detection portion. Therefore, the bonding device does not eject air unnecessarily and can prevent the top sheet and the bottom sheet from being disturbed.

In the first to sixth aspects, a re-determination unit is provided for determining whether or not the light amount calculated by the light amount calculation unit is equal to or greater than a predetermined value after the air is injected by the air control unit, and the air control unit includes the The air is injected when the re-determination unit determines that the light amount is less than a predetermined value, and the air control unit determines that the light amount is less than the predetermined value and injects the air. an error determination unit for determining whether the light amount calculated by the light amount calculation unit is equal to or greater than a predetermined value; and a notification unit for notifying an error when the error determination unit determines that the light amount is less than the predetermined value. may be provided. After the air is jetted, the bonding device determines again whether the amount of light received by the light receiving portion is less than the predetermined value, and if it is still less than the predetermined value, the air is jetted. The bonding device notifies an error when the amount of light received by the light receiving portion is less than a predetermined value even after injecting air twice. Therefore, the bonding device can notify the failure of the detection section and prevent the continuous injection of air.

1 is a perspective view of a cloth bonding apparatus 1; FIG. 2 is a perspective view of the internal structure of the cloth bonding apparatus 1; FIG. 2 is a left side view of the cloth bonding apparatus 1; FIG. FIG. 2 is an enlarged view of the inside of the W1 area of FIG. 1 viewed from the upper left rear side (the upper transport mechanism portion is omitted). FIG. 3 is an enlarged view of the area W2 in FIG. 2 viewed from the upper right front (the upper clamping unit is omitted). 4 is an enlarged view of the W3 region of FIG. 3; FIG. 5 is a plan view of the leading end of the lower conveying device 50. FIG. 2 is a block diagram showing an electrical configuration of the cloth bonding apparatus 1; FIG. 4 is a flowchart of main processing; 4 is a flowchart of injection processing; 4 is a flow chart of adhesion processing. FIG. 2 is a front top view of the cloth bonding apparatus 201; 13 is an enlarged view of the W4 region of FIG. 12; FIG. 4 is a flowchart of movement processing;

An embodiment of the present invention will be described. In the following description, left and right, front and rear, and top and bottom indicated by arrows in the drawings are used. The cloth bonding apparatus 1 shown in FIG. 1 bonds two sheets with an adhesive. The two sheets are for example a top fabric 7 and a bottom fabric 8 . The upper cloth 7 overlaps the lower cloth 8 from above. While conveying the upper cloth 7 and the lower cloth 8 backward, the cloth bonding apparatus 1, for example, attaches an upper specific end portion 7A, which is the left end portion of the upper cloth 7, and a lower specific end portion 8A, which is the right end portion of the lower cloth 8. to glue. The rear side is the downstream side in the conveying direction, and the front side is the upstream side in the conveying direction.

The configuration of the cloth bonding apparatus 1 will be described with reference to FIGS. 1 to 7. FIG. As shown in FIGS. 1 and 2, the cloth bonding apparatus 1 includes a base portion 2, a pedestal portion 3, an arm portion 4, a head portion 5, and a lower conveying device 50. As shown in FIG. The pedestal part 2 has a substantially rectangular parallelepiped shape and is installed on a workbench (not shown). The pedestal portion 3 has a columnar shape extending upward from the upper surface of the base portion 2 . The arm portion 4 extends leftward from the upper end portion of the pedestal portion 3 . The head 5 protrudes leftward from the left end of the arm 4 . The pedestal 2 has a fixing plate 2A at its left end. The lower conveying device 50 is detachably fixed to the left surface of the fixed plate 2A. The left surface of the fixed plate 2A is a plane facing leftward and parallel to the vertical direction. The lower conveying device 50 cooperates with the later-described upper conveying mechanism section 10 to superimpose the upper cloth 7 and the lower cloth 8 and convey them rearward, and also controls the position of the lower cloth 8 in the left-right direction.

The lower conveying device 50 is of a so-called “cylindrical shape” having an elongated cylindrical distal end extending substantially horizontally from the upstream side to the downstream side in the conveying direction. For example, when making a T-shirt, two pieces of cloth are joined together on the sides, and the cloth ends up in a tubular shape. Wakiawase is the process of pasting and gluing the adjacent ends of two pieces of cloth together. Since the leading end of the lower conveying device 50 has an elongated tubular shape, the worker can handle the cloth around the leading end of the lower conveying device 50 . Therefore, the lower conveying device 50 is suitable for creating a cylindrical cloth by bonding the ends of two pieces of cloth together.

The head portion 5 includes an upper transport mechanism portion 10 , a nozzle lever swinging mechanism portion 20 and a mounting portion 30 . The upper conveying mechanism 10 cooperates with the lower conveying device 50 to overlap the upper cloth 7 and the lower cloth 8 and convey them backward. The nozzle lever swinging mechanism 20 supports the nozzle lever 23 so as to be swingable in the front-rear direction. The nozzle lever 23 extends like an arm in the vertical direction and has a nozzle 24 at its lower end. The nozzle 24 ejects the adhesive onto the lower cloth 8 before the upper cloth 7 is overlapped. The mounting portion 30 detachably mounts a cartridge (not shown) containing an adhesive. The arm portion 4 includes an upper holding unit 40, a supply mechanism portion 35, an upper sensor portion 85 (see FIG. 5), and an upper injection portion 150 (see FIG. 6). The upper nipping unit 40 controls the lateral position of the upper cloth 7 to be conveyed rearward. The supply mechanism section 35 supplies the adhesive of the cartridge mounted on the mounting section 30 to the nozzle 24 .

The configuration of the upper transport mechanism section 10 will be described. As shown in FIGS. 3 and 6 , the upper transport mechanism 10 is provided on the rear portion of the lower surface of the head 5 . The upper transport mechanism section 10 includes support arms 11, upper transport rollers 12, upper transport motors 14, and arm air cylinders 15 (see FIG. 8). The support arm 11 extends from the rear to the front below the head 5 and further bends to extend obliquely downward to the front. The support arm 11 supports the head 5 so as to be swingable. The support arm 11 has an upper conveying roller 12 at its lower end. The upper conveying roller 12 rotates around a rotating shaft 12A extending in the left-right direction. The upper transport motor 14 is provided at the rear end of the support arm 11 . The upper conveying motor 14 is connected to the upper conveying roller 12 via a transmission mechanism provided inside the support arm 11 . Therefore, the upper conveying roller 12 is rotated by the power of the upper conveying motor 14 .

An arm air cylinder 15 (see FIG. 8) is provided on the head 5 . The support arm 11 is driven by an arm air cylinder 15 to swing vertically. As the arm air cylinder 15 swings the support arm 11, the upper conveying roller 12 moves between the contact position and the upper position. The upper conveying roller 12 located at the contact position sandwiches the lower cloth 8 and the upper cloth 7 between the lower conveying roller 64 (see FIG. 5), which will be described later. The upper conveying roller 12 at the upper position is retracted upward from the upper cloth 7 .

The configuration of the nozzle lever swinging mechanism 20 will be described. As shown in FIG. 2 , the nozzle lever swinging mechanism 20 is provided on the left side inside the head 5 . The nozzle lever swinging mechanism 20 includes a nozzle motor 21, a support shaft (not shown), a nozzle lever 23, and a nozzle 24 (see FIG. 4). A nozzle motor 21 is a pulse motor provided on the left side inside the head 5 . The nozzle motor 21 has an output shaft to which a worm (not shown) is fixed. The support shaft has a tubular shape extending in the left-right direction above the worm, and supports the nozzle lever 23 so as to swing. The support shaft supports a worm wheel (not shown) that meshes with the upper end of the worm. The support shaft rotates together with the worm wheel by the power of the nozzle motor 21 .

The nozzle lever 23 is provided on the left side of the worm wheel and extends downward from the left end of the support shaft. The lower end of the nozzle lever 23 is positioned upstream in the transport direction from the upper transport roller 12 (see FIG. 4). The nozzle lever 23 has a channel inside and communicates with the inside of the support shaft. The nozzle lever 23 has a heater 132 (see FIG. 8) inside near the flow path. The heater 132 heats the flow path to prevent solidification of the adhesive and increase fluidity. The nozzle 24 is detachably attached to the lower end of the nozzle lever 23 . The nozzle lever 23 is driven by the nozzle motor 21 to swing, and the nozzle 24 moves between the approach position and the separation position. The approach position is a position where the nozzle 24 approaches the upper conveying roller 12 . The separated position is a position where the nozzle 24 is separated from the upper conveying roller 12 to the upstream side in the conveying direction from the approach position. The adhesive supplied by the supply mechanism part 35 flows inside the support shaft.

As shown in FIGS. 4 to 6, the nozzle 24 has a channel shaft portion 25 and an upper support portion 26. As shown in FIGS. The channel shaft portion 25 protrudes obliquely downward to the rear from the lower end portion of the nozzle lever 23 . The channel shaft portion 25 has a channel therein and communicates with the channel of the nozzle lever 23 . The upper support portion 26 is provided at the lower end portion of the channel shaft portion 25 and extends substantially horizontally to the right. The upper support portion 26 has a substantially triangular rod shape when viewed from the left side (see FIG. 6). The upper support portion 26 has a channel inside and communicates with the channel of the channel shaft portion 25 . The upper support portion 26 has a discharge port 27 (see FIG. 6) at a portion on the upstream side in the conveying direction of the bottom portion. A plurality of discharge ports 27 are opened in the left-right direction at the bottom portion of the upper support portion 26 and communicate with the flow path. The adhesive that has flowed through the flow path is discharged downward from the discharge port 27 .

The upper support portion 26 has an inclined surface 26A on the upper rear side. The slope 26A is a surface that slopes downward from the upper end toward the rear. The upper support portion 26 has a concave portion 26B at the central portion in the left-right direction of the slope 26A. The recessed portion 26B is a rectangular portion recessed downward in plan view. The bottom surface of the recess 26B is substantially horizontal. The recessed portion 26B is located downstream of the ejection port 27 in the transport direction. The upper support portion 26 fixes the reflector 28 to the bottom surface of the recess 26B. The reflector 28 retro-reflects light emitted by an upper light-emitting portion 85A (see FIG. 8) of the upper sensor portion 85, which will be described later, toward an upper light-receiving portion 85B (see FIG. 8) of the upper sensor portion 85. FIG.

The configuration of the mounting portion 30 will be described. As shown in FIGS. 1 to 3, the mounting portion 30 is provided approximately in the center of the head portion 5, and includes a cover 31A, a housing portion 31B, a lid 31C (see FIG. 2), and a heater 131 (see FIG. 8). The cover 31A has a substantially rectangular parallelepiped box shape and extends upward from the upper surface of the head portion 5 . The cover 31A opens vertically. The housing portion 31B is provided inside the cover 31A. The accommodating portion 31B has a substantially rectangular parallelepiped box shape and extends from the inside of the head portion 5 to the upper end of the cover 31A. The housing portion 31B opens upward. The accommodating portion 31B detachably accommodates a cartridge (not shown) therein. The lid 31C is detachably provided on the upper side of the housing portion 31B, and opens and closes the upper opening of the housing portion 31B. The cartridge contains hot melt adhesive. The adhesive liquefies when heated to a predetermined temperature and solidifies at a temperature lower than the predetermined temperature. A heater 131 is provided in the housing portion 31B. The heater 131 heats the cartridge housed in the housing portion 31B. The adhesive is melted and liquefied by the heat of the heater 131 .

The configuration of the upper clamping unit 40 will be described. As shown in FIGS. 1 and 2, the upper clamping unit 40 is provided on the lower surface of the arm portion 4. As shown in FIG. The upper clamping unit 40 includes an upper arm 41, an upper clamping roller 42, a rotating shaft 42A, an upper clamping motor 48 (see FIG. 8), a spring (not shown), and an upper air cylinder 49 (see FIG. 8). The upper arm 41 extends downward and leftward from the right side of the lower surface of the arm portion 4 and has an arm-like and cylindrical shape. The right end of the upper arm 41 is supported on the left side of the lower surface of the arm 4 so as to be rotatable about the axis P (see FIG. 2). The tip (lower end) of the upper arm 41 is arranged on the upstream side in the conveying direction of the nozzle 24 at the approach position. The rotary shaft 42A protrudes rearward from the distal end of the upper arm 41, and the front-rear direction is the axial direction. The upper nipping roller 42 is fixed to the rear end portion of the rotary shaft 42A and is rotatable with the rotary shaft 42A with the front-rear direction as its axial direction. The upper clamping motor 48 is a motor that can rotate forward and backward. The upper clamping motor 48 has a power transmission mechanism inside the upper arm 41 . The power transmission mechanism includes, for example, a pair of pulleys and an endless belt (not shown). One pulley is fixed to the output shaft of the upper nipping motor 48, and the other pulley is fixed to the rotation shaft 42A of the upper nipping roller 42. As shown in FIG. The endless belt is stretched between a pair of pulleys. Therefore, the power transmission mechanism can transmit the power of the upper nipping motor 48 to the upper nipping roller 42 to rotate the upper nipping roller 42 forward and backward.

The upper arm 41 rotates about the axis P between the upper gripping position and the upper releasing position. The upper nipping position is a rotational position of the upper arm 41 where the lower end of the upper nipping roller 42 is at the same height as the top surface of the upper cloth plate 90 . The upper release position is a rotational position of the upper arm 41 where the lower end of the upper nipping roller 42 is separated above the upper surface of the upper cloth plate 90 . The spring always urges the upper arm 41 clockwise around the axis P via other members when viewed from the front. Therefore, the spring always urges the upper arm 41 in the rotational direction from the upper gripping position to the upper releasing position. The tip of the upper arm 41 is biased by the weight of the upper arm 41 and the upper nipping roller 42 to rotate toward the upper nipping position. The spring urges the upper arm 41 in the rotational direction toward the upper release position against the urging force, thereby preventing the upper arm 41 from exerting an excessive force toward the upper holding position. The upper air cylinder 49 drives the upper arm 41 clockwise about the axis P against the urging force due to the weight of the upper arm 41 and the like, and rotates the upper arm 41 from the upper gripping position to the upper releasing position.

The structure of the supply mechanism section 35 will be described. As shown in FIG. 2, the supply mechanism section 35 is provided inside the arm section 4 on the right end side. The supply mechanism section 35 supplies the adhesive of the cartridge housed in the housing section 31B to the nozzle 24 . The supply mechanism section 35 includes a pump motor 36 and a gear pump 37 . A pump motor 36 is provided inside the arm portion 4 and has an output shaft 36A. The gear pump 37 is provided on the front side of the mounting portion 30 and connected to the right end of the support shaft of the nozzle lever 23 . The output shaft 36A is connected to a gear pump 37 via a gear 38. As shown in FIG. The gear pump 37 sucks the adhesive from the cartridge housed in the housing portion 31B. The gear pump 37 supplies the sucked adhesive to the nozzle 24 through the support shaft and the channel in the nozzle lever 23 .

The upper sensor section 85 and its supporting structure will be described. The upper sensor section 85 is an optical sensor in which an upper light emitting section 85A and an upper light receiving section 85B (see FIG. 8) are integrated. As shown in FIGS. 4 to 6, the upper sensor section 85 is supported between the upper conveying roller 12 and the upper nipping roller 42 by the supporting arm section 500 and the sensor supporting member 81 . The supporting arm portion 500 is formed in the shape of an elongated plate, and extends downward from the lower surface of the arm portion 4 while curving so as to be convex forward. The support arm 500 has a pair of fixing holes 501 arranged in the left-right direction at its lower end. The sensor support member 81 is detachably fixed to the lower end of the support arm 500 with a pair of screws 88 .

The sensor support member 81 has a fixing portion 82 and a support portion 83 . The fixed portion 82 is a portion that contacts and is fixed to the front surface of the lower end portion of the support arm portion 500, and is formed in a substantially rectangular plate shape extending in the left-right direction. The fixed portion 82 has an elongated hole 821 extending in the left-right direction. A pair of screws 88 are fastened to a pair of fixing holes 501 at the lower end of the support arm portion 500 via long holes 821 . The head of the screw 88 is engaged with the edge of the elongated hole 821 of the fixed portion 82 from the front. Therefore, the fixed portion 82 is fixed to the front surface of the lower end portion of the support arm portion 500 .

The support portion 83 extends downward from the left end of the fixing portion 82 and has a sensor fixing portion 84 at its lower end. The sensor fixing portion 84 extends rightward from the lower end portion of the support portion 83 and is a portion for attaching and supporting the upper sensor portion 85 . The upper sensor portion 85 fixed to the sensor fixing portion 84 is positioned at the same height as the rotating shaft 12A of the upper conveying roller 12 . The upper light emitting portion 85A emits light obliquely rearward toward the reflecting plate 28 provided in the concave portion 26B of the upper support portion 26 of the nozzle 24 located at the approaching position. The reflector 28 retroreflects incident light. The upper light receiving portion 85B receives the reflected light reflected by the reflecting plate 28 .

For example, when the upper specific end portion 7A of the upper cloth 7 is above the concave portion 26B, the upper specific end portion 7A blocks the light emitted by the upper light emitting portion 85A. Therefore, the upper light receiving portion 85B does not receive the light emitted by the upper light emitting portion 85A. When the upper specific end portion 7A is not above the concave portion 26B, the light emitted by the upper light emitting portion 85A is reflected by the reflector 28 . The upper light receiving portion 85B receives the reflected light. Therefore, the upper sensor portion 85 can detect whether or not the upper specific end portion 7A is present above the concave portion 26B. The concave portion 26B is an upper detection position where the upper sensor portion 85 detects the upper specific end portion 7A.

The upper injection part 150 and its support structure will be described. The upper spray section 150 is a unit that sprays air onto the reflecting plate 28 provided on the bottom surface of the recess 26B of the nozzle 24 . As shown in FIGS. 1 to 7, the upper injection section 150 includes an air nozzle 151, a regulating valve 152, a support plate 153, a fixing screw 154, a flow pipe 155, and an on-off valve 156 (see FIG. 8). The air nozzle 151 is a bent metal pipe, and the base end side is attached to the regulating valve 152 to which the flow pipe 155 is connected. The air nozzle 151 jets air flowing through the flow tube 155 from the tip in the direction in which the tip extends. The adjustment valve 152 adjusts the air flow rate according to the operation of the adjustment dial 152A. Therefore, the upper injection section 150 can adjust the amount of air injected from the tip of the air nozzle 151 .

The support plate 153 has a rectangular plate shape extending in the vertical direction. The support plate 153 has a hole (not shown) which is slightly larger than the diameter of the shaft of the fixing screw 154 at its upper end. to the The support plate 153 is arranged above the upper conveying roller 12 in a side view and on the right side of the support arm 11 in a front view. The regulating valve 152 is arranged in a through hole (not shown) provided at the lower end of the support plate 153, and two nuts 157, 157 are screwed together. The support plate 153 is located between the two nuts 157,157. The adjustment valve 152 is fixed to the support plate 153 by sandwiching the support plate 153 with two nuts 157 , 157 . The on-off valve 156 is provided in the middle of the flow pipe 155 . The on-off valve 156 is an electromagnetic valve, and air flows through the flow pipe 155 in an open state, and cuts off air flow in a closed state.

By adjusting the degree of bending of the air nozzle 151 in advance, the opening direction of the tip of the air nozzle 151 faces the surface of the reflector 28 provided in the concave portion 26B of the nozzle 24 at the approach position (see FIGS. 4 and 5). ). The support plate 153 can adjust the opening direction of the tip portion of the air nozzle 151 in the front-rear direction by shifting the position of the adjustment valve 152 with respect to the nuts 157 , 157 in the front-rear direction. The air nozzle 151 can adjust the opening direction angle of the tip portion by changing the mounting angle of the adjustment valve 152 with respect to the nuts 157 , 157 . The air jetted from the air nozzle 151 blows off debris or dust adhering to the surface of the reflecting plate 28 .

The structure of the lower conveying device 50 will be described. As shown in FIGS. 1 to 3, the lower transfer device 50 includes a support plate portion 51, a frame 55, and a lower transfer mechanism portion 60. As shown in FIG. The lower conveying mechanism 60 (see FIG. 2) cooperates with the upper conveying mechanism 10 to overlap and convey the upper cloth 7 and the lower cloth 8, and is a unit capable of controlling the lateral position of the lower cloth 8. is. The frame 55 (see FIG. 1) is a housing that accommodates the lower transport mechanism section 60 inside. The support plate portion 51 is a support member that supports the frame 55 and the lower transport mechanism portion 60 .

As shown in FIG. 2 , the support plate portion 51 includes vertical plates 52 and horizontal plates 53 . The vertical plate 52 is a plate member that extends in the vertical direction and has a laterally elongated substantially rectangular shape as viewed from the left side, the surface direction being in the horizontal direction. The right surface of the vertical plate 52 is detachably fixed to the left surface of the fixing plate 2A of the base portion 2. As shown in FIG. The vertical plate 52 has a slope portion 54 on the left side of the vertical plate 52 except for the front side. The slope portion 54 has a substantially triangular shape when viewed from the front, and has a slope that slopes downward from the top toward the left. The slope part 54 prevents the fabric from being caught by sliding the fabric formed by pasting the upper cloth 7 and the lower cloth 8 together. The horizontal plate 53 is generally L-shaped in plan view, and has a portion extending substantially horizontally to the left from the front portion of the lower end of the vertical plate 52 .

As shown in FIG. 1, the frame 55 is fixed to the front portion of the left surface of the vertical plate 52 and the upper surface of the horizontal plate 53 of the support plate portion 51 with screws. The frame 55 extends along the conveying direction and has an accommodation portion 551 and an extension portion 552 . The accommodating portion 551 is provided on the upstream side in the transport direction and is formed in a substantially box shape with an open top. The accommodating portion 551 accommodates a plurality of motors of the lower transport mechanism portion 60, which will be described later. The first cross plate 57 is fixed to the upper opening of the accommodating portion 551 with screws. The first cross plate 57 is a horizontally extending plate member. The extending portion 552 is formed in an elongated substantially square tubular shape extending from the rear portion of the accommodating portion 551 to the downstream side in the transport direction. The upper portion of the extending portion 552 is open. The extending portion 552 accommodates the leading end portion of the lower transport mechanism portion 60 therein. The tip portion of the lower transport mechanism portion 60 extends rearward and is elongated. The extension part 552 fixes the second cross plate 58 to the open upper part with a screw. The second cross plate 58 is a substantially rectangular plate member elongated in the front-rear direction in plan view. The extending portion 552 has an opening 553 (see FIG. 4) at its rearwardly extending distal end. The leading end portion of the lower transport mechanism portion 60 protrudes rearward from the opening 553 of the extending portion 552 and is exposed.

The structure of the lower transport mechanism section 60 will be described. As shown in FIG. 2, the lower transport mechanism section 60 includes a support frame 61, a swing shaft 62, a lower transport motor 63, a lower transport roller 64 (see FIG. 6), a nozzle lower roller 65 (see FIG. 6), a transport belt 67, a nozzle gap adjusting motor 68, a lower clamping unit 70, a lower sensor section 78 (see FIG. 5), an end sensor section 79 (see FIG. 5), and a lower injection section 160 (see FIG. 5).

The support frame 61 extends parallel to the transport direction and has a substantially U-shape with a cross section perpendicular to the length direction that opens upward. The support frame 61 includes a right plate portion 61A, a left plate portion 61B, and a bottom plate portion 61C (see FIG. 4). The right plate portion 61A is a plate portion that stands upright in the vertical direction, extends parallel to the transport direction, and is formed in a substantially L shape in a right side view in which a portion on the upstream side in the transport direction is bent downward into a substantially L shape. . The right plate portion 61A has a circular through hole 63A on the front end side, and a substantially rectangular cam hole 63B below it. A drive shaft (not shown) of the lower transport motor 63 is inserted into the through hole 63A. A cam plate 69, which will be described later, is arranged inside the cam hole 63B. The left plate portion 61B is a plate portion erected parallel to the right plate portion 61A, has a shorter length in the front-rear direction than the right plate portion 61A, and is conveyed at the front end side (rear end side) of the support frame 61. It is formed in an elongated substantially rectangular shape extending parallel to the direction when viewed from the left side. The bottom plate portion 61C is a plate portion that substantially horizontally connects the rear portions of the lower end portions of the right plate portion 61A and the left plate portion 61B, and is formed in a substantially rectangular shape when viewed from the bottom.

The swing shaft 62 is fixed in the support frame 61 in the longitudinal direction substantially in the middle by penetrating between the right plate portion 61A and the left plate portion 61B in the left-right direction. Both left and right end portions of the swing shaft 62 protrude to both left and right sides of the right plate portion 61A and the left plate portion 61B, respectively. Both ends of the swing shaft 62 are rotatably inserted into holes (not shown) provided in both left and right walls of the extended portion 552 of the frame 55 (see FIG. 1). Therefore, the support frame 61 of the lower transport mechanism 60 can swing around the swing shaft 62 with respect to the frame 55 .

The lower transport motor 63 is fixed to the front end portion of the right surface of the right plate portion 61A of the support frame 61 . A drive shaft (not shown) of the lower transport motor 63 protrudes leftward from the right surface of the right plate portion 61A. The drive shaft is inserted into a through hole 63A provided in the right plate portion 61A and protrudes inside the support frame 61. As shown in FIG.

As shown in FIGS. 4, 6, and 7, the lower conveying roller 64 is rotatably supported inside the tip of the support frame 61. As shown in FIGS. A rotating shaft 64A of the lower conveying roller 64 extends in the left-right direction and is rotatably inserted into holes provided in the right plate portion 61A and the left plate portion 61B. The lower conveying roller 64 is arranged directly below the upper conveying roller 12 and can come into contact with the upper conveying roller 12 from below.

The nozzle lower roller 65 is rotatably supported inside the tip of the support frame 61 and upstream of the lower conveying roller 64 in the conveying direction. A rotating shaft 65A of the nozzle lower roller 65 extends in the left-right direction and is rotatably inserted into holes provided in the right plate portion 61A and the left plate portion 61B. The nozzle lower roller 65 is arranged below the discharge port 27 provided at the bottom of the upper support portion 26 of the nozzle 24 (see FIG. 6).

As shown in FIG. 2, the transport belt 67 is stretched inside the support frame 61 between the drive shaft of the lower transport motor 63 and the rotating shafts 64A and 65A. The conveying belt 67 transmits the driving force of the lower conveying motor 63 to the lower conveying roller 64 and the nozzle lower roller 65 . Therefore, when the lower conveying motor 63 is driven, both the lower conveying roller 64 and the nozzle lower roller 65 rotate.

The nozzle gap adjustment motor 68 is fixed to a portion of the support plate portion 51 extending leftward on the front side of the upper surface of the horizontal plate 53 . A drive shaft 68A of the nozzle gap adjustment motor 68 protrudes leftward. A substantially circular cam plate 69 is fixed to the tip of the drive shaft 68A. The cam plate 69 is arranged inside the cam hole 63B provided in the right plate portion 61A of the support frame 61 . A spring (not shown) urges the support frame 61 in a direction in which the tip side of the support frame 61 swings downward. Therefore, the cam plate 69 contacts the lower edge of the cam hole 63B. When the nozzle gap adjustment motor 68 is driven to rotate the cam plate 69 , the support frame 61 swings around the swing shaft 62 according to the rotation angle of the cam plate 69 . The nozzle gap adjustment motor 68 adjusts the nozzle gap between the adhesion gap and the retraction gap by vertically moving the tip of the lower transport mechanism 60 . The nozzle gap is the gap between the discharge port 27 of the nozzle 24 and a nozzle plate 59 (see FIG. 4) which will be described later. When the nozzle gap is the retreat gap, the tip of the lower transport mechanism 60 is at the lower end of the vertical movement range. When the nozzle gap is the bonding gap, the tip of the lower transport mechanism 60 is positioned higher than when the nozzle gap is the retraction gap, and the nozzle plate 59 is close to the discharge port 27 of the nozzle 24 .

The lower clamping unit 70 is a unit capable of controlling the lateral position of the lower cloth 8 while clamping the lower cloth 8 with the lower surface of an upper cloth plate 90 described later. The lower nipping unit 70 includes a fixed base portion 71, a lower nipping motor 72, a support frame portion 73, a rotating shaft 75, and a lower nipping roller 76 (see FIG. 6). The fixed base portion 71 is formed in a substantially rectangular parallelepiped shape and fixed to the inner portion of the housing portion 551 of the frame 55 . The fixed base portion 71 has a circular through hole (not shown) penetrating in the front-rear direction, and rotatably holds the rotating portion 717 inside the through hole. The lower clamping motor 72 is fixed to the front surface of the rotating portion 717 . Therefore, the lower clamping motor 72 rotates integrally with the rotating portion 717 with respect to the fixed base portion 71 . Therefore, the fixed base portion 71 rotatably supports the lower clamping motor 72 together with the rotating portion 717 . A drive shaft (not shown) of the lower clamping motor 72 is inserted into a through hole (not shown) provided in the center of the rotating portion 717 and connected to a connecting shaft (not shown). The connecting shaft protrudes rearward from the rear surface of the rotating portion 717 . The support frame portion 73 is arranged behind the fixed base portion 71 and fixed to the rear surface of the rotating portion 717 . Therefore, the support frame portion 73 rotates integrally with the rotating portion 717 . The support frame portion 73 accommodates inside the rear end portion of the connecting shaft that is connected to the drive shaft of the lower clamping motor 72 . The rotating shaft 75 is arranged inside the support frame 61 and extends parallel to the conveying direction. A belt (not shown) is put between the connecting shaft and the rotating shaft 75 . The support frame portion 73 rotatably supports the rear end portion of the rotary shaft 75 at a position obliquely upper right with respect to the drive shaft of the lower clamping motor 72 . The lower nipping roller 76 is fixed to the front end of the rotating shaft 75 . The lower nipping roller 76 is arranged below the upper nipping roller 42 . When the lower clamping motor 72 is driven, the rotary shaft 75 rotates via the drive shaft, connecting shaft, and belt. Therefore, the lower nipping roller 76 rotates integrally with the rotating shaft 75 around the rotating shaft 75 .

A lower air cylinder 711 is provided on the upper surface of the fixed base portion 71 . The lower clamping motor 72 is provided with a pin 712 on the rear portion of the upper surface. Pin 712 projects upward. The lower air cylinder 711 contacts the pin 712 from the left side. One end of a tension spring 715 is fixed to the rear portion of the left side of the lower clamping motor 72 . The tension spring 715 extends downward, and the other end is fixed to the inside of the housing portion 551 of the frame 55 . The tension spring 715 always urges the lower clamping motor 72 counterclockwise when viewed from the front. When the lower air cylinder 711 is driven to push the pin 712 rightward, the lower clamping motor 72 rotates clockwise in front view against the biasing force of the tension spring 715 . Therefore, the lower clamping unit 70 rotates clockwise with respect to the fixed base 71, and the lower clamping roller 76 moves to the lower release position. The lower release position is the position of the lower nipping roller 76 spaced downward from the lower surface of the upper cloth plate 90, which will be described later.

When the lower air cylinder 711 is driven to move the pin 712 leftward, the lower clamping motor 72 rotates counterclockwise in front view due to the biasing force of the tension spring 715 . Therefore, the lower nipping unit 70 rotates counterclockwise with respect to the fixed base 71, and the lower nipping roller 76 moves to the lower nipping position. The lower nipping position is the position of the lower nipping roller 76 moved upward by the biasing force of the tension spring 715 until it contacts the lower surface of the upper cloth plate 90 .

As shown in FIGS. 4 and 7, in the lower transport mechanism section 60 configured as described above, the support frame 61 has a front end plate 56 fixed to the front end opening to the rear. The tip plate 56 is arranged in a downwardly inclined state rearward from the upper end. The tip plate 56 has a rectangular cut-out recess 56A at its upper end. The support frame 61 fixes the nozzle plate 59 to the upper rear portion that opens upward. The nozzle plate 59 extends substantially parallel to the transport direction. The nozzle plate 59 is arranged directly below the discharge port 27 of the nozzle 24 and adjacent to the rear of the second cross plate 58 fixed to the frame 22 . The nozzle plate 59 is provided with a rectangular opening 59A directly below the discharge port 27 . The nozzle lower roller 65 is arranged inside the opening 59A, and its upper portion protrudes upward. The nozzle plate 59 has a rectangular recess 59B at its rear end. The recessed portion 56A and the recessed portion 59B face each other in the front-rear direction and form a rectangular opening in the center thereof. The lower conveying roller 64 is arranged inside the opening, and its upper portion protrudes upward. The nozzle plate 59 is provided with a through hole 59C (see FIG. 7) at a position directly above a lower sensor portion 78 (described later) provided inside the support frame 61 . The through hole 59C is formed in a notch shape extending rightward from the right front corner of the opening 59A.

In the rear end portion of the second cross plate 58, a right rear end portion 58A on the right side in the left-right direction protrudes further rearward than a left rear end portion 58B on the left side including the central portion in the left-right direction. The front end portion of the nozzle plate 59 and the right rear end portion 58A of the second cross plate 58 are separated in the front-rear direction and form a slit-shaped opening 58C extending in the left-right direction. The air jetted by the lower jetting portion 160, which will be described later, is jetted upward from the inside of the extended portion 552 of the frame 55 through the opening 58C. The front end portion of the nozzle plate 59 and the left rear end portion 58B of the second cross plate 58 form an opening portion 58D having a larger longitudinal gap than the opening portion 58C. The lower nipping roller 76 is arranged inside the opening 58D, and its upper portion protrudes upward.

As shown in FIGS. 4 to 7, the extended portion 552 of the frame 55 rotatably attaches the upper cloth plate 90 to the right rear corner of the upper surface of the second cross plate 58 with the fixed shaft portion 91 . The upper cloth plate 90 is a substantially rectangular plate member in a plan view. The upper cloth plate 90 is horizontally rotatable about a fixed shaft portion 91 between an operating position and a retracted position. The operative position is the position where the upper cloth plate 90 is directly below the upper nipping roller 42 and directly above the lower nipping roller 76 . The second cross plate 58 has a protrusion (not shown) protruding upward at a position forward of the mounting position of the fixed shaft portion 91 . The upper cloth plate 90 has a magnet (not shown) on the side of the fixed shaft portion 91 . The magnets are magnetically coupled to the projections to keep the upper cloth plate 90 in the operative position. When the upper cloth plate 90 is at the operating position, the upper nipping roller 42 can pinch the upper cloth 7 between itself and the upper surface of the upper cloth plate 90 . The lower nipping roller 76 can nip the lower cloth 8 between itself and the lower surface of the upper cloth plate 90 . The retracted position is a position where the upper cloth plate 90 is rotated approximately 90 degrees counterclockwise in plan view from the operating position about the fixed shaft portion 91 . The upper cloth plate 90 at the retracted position is retracted to a position diagonally forward to the right of the position between the upper nipping roller 42 and the lower nipping roller 76 .

The upper fabric plate 90 has a reflector 95 and a reflector 96 attached to its lower surface. When the upper cloth plate 90 is at the operating position, the reflector 95 is positioned at the center in the left-right direction and the rear end in the front-rear direction in plan view, and has a rectangular shape extending in the left-right direction. At this time, the reflector 95 is positioned directly above the through hole 59C of the nozzle plate 59 . When the upper cloth plate 90 is at the operating position, the reflector 96 is positioned at the center in the front-rear direction and the left end in the left-right direction in plan view, and has an oval shape extending in the left-right direction. At this time, the reflector 96 is positioned above the left front portion of the opening 58D formed between the nozzle plate 59 and the second cross plate 58. As shown in FIG.

The lower sensor portion 78 is arranged inside the support frame 61 and below the through hole 59C. The lower sensor section 78 is an optical sensor in which a lower light emitting section 78A and a lower light receiving section 78B (see FIG. 8) are integrated. The lower light emitting portion 78A emits light upward through the through hole 59C toward the reflector 95 fixed to the lower surface of the upper cloth plate 90 at the operating position. The reflecting plate 95 retroreflects incident light that passes through the through hole 59C and enters from the lower light emitting portion 78A. The lower light receiving portion 78B receives the reflected light that has been reflected by the reflector 95 and passed through the through hole 59C.

For example, when the lower specific end portion 8A of the lower cloth 8 is above the through hole 59C, the lower specific end portion 8A blocks the light emitted by the lower light emitting portion 78A. Therefore, the lower light receiving portion 78B does not receive the light emitted by the lower light emitting portion 78A. If the lower specific end portion 8A is not above the through hole 59C, the light emitted by the lower light emitting portion 78A is reflected by the reflector 95. As shown in FIG. The lower light receiving portion 78B receives the reflected light through the through hole 59C. Therefore, the lower sensor portion 78 can detect whether or not the lower specific end portion 8A is located above the through hole 59C. The through hole 59C is a lower detection position where the lower sensor portion 78 detects the lower specific end portion 8A.

The end sensor section 79 is arranged inside the support frame 61 and below a reflector 96 fixed to the lower surface of the upper cloth plate 90 in the operating position. The terminal end sensor portion 79 is positioned diagonally to the left of the lower nipping roller 76 and to the left of the rotating shaft 75 in a plan view. The position of the end sensor portion 79 in the opening portion 58D is a position that does not overlap the lower nipping roller 76 in the vertical direction. The end sensor section 79 is an optical sensor in which a light emitting section 79A and a light receiving section 79B (see FIG. 8) are integrated. The light emitting portion 79A emits light upward through the opening 58D toward the reflecting plate 96 fixed to the lower surface of the upper cloth plate 90 at the operating position. The reflecting plate 96 retroreflects the incident light that passes through the opening 58D and enters from the light emitting portion 79A. The light receiving portion 79B receives the reflected light that has been reflected by the reflector 96 and passed through the opening 58D.

For example, when the lower cloth 8 is above the left front portion of the opening 58D, the lower cloth 8 blocks the light emitted by the light emitting portion 79A. Therefore, the light receiving portion 79B does not receive the light emitted by the light emitting portion 79A. When the lower cloth 8 is not above the left front portion of the opening 58D, the light emitted by the light emitting portion 79A is reflected by the reflector 96. As shown in FIG. The light receiving portion 79B receives the reflected light through the opening 58D. Therefore, the end sensor portion 79 can detect whether or not the lower cloth 8 is present above the left front portion of the opening 58D. When the end of the lower cloth 8 on the upstream side in the conveying direction, that is, the upstream end in the conveying direction of the lower cloth 8 (hereinafter referred to as the end) passes above the left front portion of the opening 58D, the end sensor 79 detects that the lower cloth The detection result of 8 shifts from the state in which the lower cloth 8 is detected to the state in which it is not detected. Therefore, the cloth bonding apparatus 1 detects the end of the lower cloth 8 by determining whether the end of the lower cloth 8 has passed above the left front portion of the opening 58D based on the detection result of the end sensor section 79. be able to. The left front portion of the opening 58</b>D is the end detection position where the end sensor 79 detects the end of the lower cloth 8 .

The lower injection part 160 and its supporting structure will be described. The lower spray section 160 is a unit that sprays air onto the reflectors 95 and 96 provided on the lower surface of the upper cloth plate 90 . As shown in FIGS. 2, 5, and 7, the lower injection section 160 includes an air nozzle 161, a regulating valve 162, a support box 163, a flow pipe 165, and an on-off valve 166 (see FIG. 8). The air nozzle 161 is a bent metal tube and is attached to the support box 163 at the base end side. The support box 163 is box-shaped and is arranged inside the support frame 61 and obliquely forward to the right of the lower nipping roller 76 . The upper surface of the bottom plate portion 61C of the support frame 61 has two tracks (not shown) extending in the front-rear direction. The support box 163 can move forward and backward on the track. The support box 163 is fixed to the track by tightening internal screws with a screwdriver inserted into the adjustment hole 163A opening at the top, and positioned in the support frame 61 in the front-rear direction. A regulating valve 162 is connected to a flow tube 165 and attached to a support box 163 . The adjustment valve 162 rotates a dial (not shown) to adjust the air flow rate. Therefore, the lower injection section 160 can adjust the amount of air injected from the tip of the air nozzle 161 . The air nozzle 161 jets air flowing through the flow tube 165 from the tip in the direction in which the tip extends. The on-off valve 166 is provided in the middle of the flow pipe 165 . The on-off valve 166 is an electromagnetic valve, which allows air to flow through the flow pipe 165 in an open state, and blocks air flow in a closed state.

By adjusting the bending degree of the air nozzle 161 in advance, the opening direction of the tip of the air nozzle 161 faces the openings 58C and 58D between the second cross plate 58 and the nozzle plate 59 (see FIG. 7). By changing the attachment angle with respect to the support box 163, the air nozzle 161 can adjust the opening direction angle of the tip. The upper fabric plate 90 overlies the openings 58C, 58D when in the operative position. The air jetted from the air nozzle 161 travels along the lower surface of the upper cloth plate 90 and blows away scraps or dust adhering to the surfaces of the reflectors 95 and 96 .

The electrical configuration of the cloth bonding apparatus 1 will be described with reference to FIG. The cloth bonding apparatus 1 has a control device 100 . The control device 100 includes a CPU 101 , a ROM 102 , a RAM 103 , a storage device 104 and drive circuits 105 and 106 . The CPU 101 centrally controls the operation of the cloth bonding apparatus 1 . CPU 101 is connected to ROM 102 , RAM 103 , storage device 104 , operation unit 19 , footboard 18 , lower sensor unit 78 , upper sensor unit 85 , end sensor unit 79 , drive circuits 105 and 106 , heaters 131 and 132 . A ROM 102 stores programs for executing various processes. A RAM 103 temporarily stores various information. The storage device 104 is non-volatile and stores various setting values and the like.

The operation unit 19 includes a knee switch 19A, various other switches, an information input unit, and the like. Various switches are provided on the front lower part of the head 5 . A knee switch 19A is provided at the bottom of the workbench and is operated by the operator's knee. The operator operates the operation section 19 to input various instructions to the cloth bonding apparatus 1 . An information input unit is provided on the workbench, and various information can be input. The information input unit has a liquid crystal screen and a speaker, displays various information, and produces various sounds. The operation unit 19 outputs information indicating various instructions to the CPU 101 as detection results. A footboard 18 is provided under the workbench and is operated by the operator's foot. The operator inputs an instruction to start or end bonding, which will be described later, via the footboard 18 . The tread 18 outputs to the CPU 101 information indicating an instruction to start or end adhesion as a detection result. The lower sensor section 78 , the upper sensor section 85 and the end sensor section 79 output detection results to the CPU 101 .

The CPU 101 sends control signals to the drive circuit 105 to operate the lower conveying motor 63, the upper conveying motor 14, the nozzle motor 45, the pump motor 36, the nozzle gap adjusting motor 68, the lower holding motor 72, and the upper holding motor 48. Drive control. The CPU 101 drives and controls the arm air cylinder 15, the lower air cylinder 711, the upper air cylinder 49, and the on-off valves 156 and 166 by sending control signals to the drive circuit 106. FIG. The CPU 101 drives heaters 131 and 132 .

The main processing will be described with reference to FIG. For example, an operator inputs an instruction to start the main process through the operation unit 19 . The CPU 101 reads a program for starting the main processing from the ROM 102 and starts the main processing. Before starting the main process, the cloth bonding apparatus 1 is in an initial state. When the cloth bonding apparatus 1 is in the initial state, the nozzle 24 is at the approach position, the upper conveying roller 12 is at the contact position, the upper arm 41 is at the upper clamping position, and the lower clamping roller 76 is at the lower clamping position. . The CPU 101 performs initialization processing (S10). In the initialization process, the CPU 101 drives heaters 131 and 132 .

The CPU 101 determines whether or not a roller movement instruction or a setting instruction is detected based on the detection result of the operation unit 19 (S11, S12). The roller movement instruction is an instruction to move the upper conveying roller 12, the upper nipping roller 42, and the lower nipping roller 76, respectively. The setting instruction is an instruction to set an injection period during which the upper injection section 150 and the lower injection section 160 maintain the injection state in one air injection operation. Until the roller movement instruction or setting instruction is detected (S11: NO, S12: NO), the CPU 101 returns to S11 and waits.

When the setting instruction is detected (S12: YES), the CPU 101 sets the injection period based on the operation of the operation unit 19 (S13). The initial value of the injection period is, for example, 2 seconds. The operator operates the information input section of the operation section 19 to input the injection period. The shorter the injection period, the more likely that the upper injection part 150 and the lower injection part 160 cannot reliably blow off debris or dust. The longer the jetting period, the easier it is for the top jet 150 and the bottom jet 160 to blow off debris or dust, but it may cool the nozzle 24 . The CPU 101 stores the injection period input by the operator in the storage device 104, and returns to S11.

When the roller movement instruction is detected (S11: YES), the CPU 101 drives and controls the upper air cylinder 49 (see FIG. 8) to raise the upper conveying roller 12 (S15). The upper conveying roller 12 rises from the contact position to the upper position. The CPU 101 executes injection processing (S16). The upper jetting part 150 jets air from an air nozzle 151 toward the reflecting plate 28 to blow off debris or dust adhering to the reflecting plate 28 . The lower jetting section 160 jets air from an air nozzle 161 toward the lower surface of the upper cloth plate 90 to blow off the scraps or dust adhering to the reflecting plates 95 and 96 . Details of the injection process will be described later.

The CPU 101 drives and controls the lower air cylinder 711 to lower the lower nipping roller 76 (S17). When the lower air cylinder 711 moves the pin 712 rightward, the lower clamping unit 70 rotates clockwise in a front view, and the rotating shaft 75 and the lower clamping roller 76 descend. Therefore, the lower nipping roller 76 moves from the lower nipping position to the lower release position. The lower nipping roller 76 is spaced downward from the lower surface of the upper cloth plate 90 . The CPU 101 drives and controls the upper air cylinder 49 to raise the upper nipping roller 42 (S18). The upper arm 41 rotates from the upper holding position to the upper releasing position. The upper nipping roller 42 is separated upward from the upper surface of the upper cloth plate 90 .

The CPU 101 determines whether or not a nozzle displacement instruction is detected based on the detection result of the operation unit 19 (S20). The nozzle displacement instruction is an instruction to displace the nozzle 24 between the approach position and the retracted position. Until the nozzle displacement instruction is detected (S20: NO), the CPU 101 returns to S20 and waits.

During standby, the operator rotates the upper cloth plate 90 counterclockwise in plan view to move from the operating position to the retracted position. When the operator inputs a nozzle displacement instruction to the operation unit 19 (S20: YES), the CPU 101 drives and controls the nozzle motor 21 to move the nozzle lever 23 forward and displace the nozzle 24 from the approach position to the separation position. (S21). The CPU 101 inputs a predetermined pulse signal as a control signal to the drive circuit 105, thereby displacing the nozzle 24 to the separated position. Since the upper cloth plate 90 is at the retracted position, the nozzle 24 is displaced to the separated position without contacting the upper cloth plate 90 . When the nozzle 24 reaches the separated position, the nozzle motor 21 is stopped.

The CPU 101 determines whether or not a nozzle displacement instruction has been detected based on the detection result of the operation unit 19 (S22). Until the nozzle displacement instruction is detected (S22: NO), the CPU 101 returns to S22 and waits. During standby, the operator places the lower cloth 8 on the nozzle plate 59 and the second cross plate 58 . Both the lower conveying roller 64 and the lower nozzle roller 65 contact the lower cloth 8 from below. When the operator placing the lower cloth 8 inputs a nozzle displacement instruction to the operation unit 19 (S22: YES), the CPU 101 drives and controls the nozzle motor 21 to displace the nozzle 24 from the separated position to the approached position (S23). ). When the CPU 101 inputs a predetermined pulse signal as a control signal to the drive circuit 105, the nozzle 24 is displaced to the approach position. The discharge port 27 faces the lower cloth 8 from above.

When the nozzle 24 is displaced to the approach position, the nozzle gap between the discharge port 27 and the nozzle plate 59 is the bonding gap. Therefore, it is difficult to rearrange the lower cloth 8 placed on the nozzle plate 59 and the second cross plate 58 . When rearranging the lower cloth 8, the operator operates the knee switch 19A. When the knee switch 19A is turned on (S25: YES), the CPU 101 drives and controls the nozzle gap adjustment motor 68 to lower the leading end of the lower transport mechanism 60 and change the nozzle gap to the retreat gap (S26). The operator can easily rearrange the lower cloth 8. - 特許庁When the nozzle gap is set to the retreat gap, the CPU 101 executes injection processing (S27). The upper jet part 150 blows off dust or debris adhering to the reflecting plate 28 with air. At this time, the lower injection part 160 may not operate.

The operator continues to operate the knee switch 19A until rearrangement of the lower cloth 8 is completed. While the knee switch 19A is on (S28: NO), the CPU 101 returns to S28 and waits. When rearrangement of the lower cloth 8 is completed, the operator stops operating the knee switch 19A. When the knee switch 19A is turned off (S28: YES), the CPU 101 drives and controls the nozzle gap adjustment motor 68 to lift the tip of the lower transport mechanism 60 and change the nozzle gap to the bonding gap (S30). The CPU 101 shifts the process to S31. Even if the operator does not operate the knee switch 19A in S25 (S25: NO), the CPU 101 proceeds to S31.

The CPU 101 executes gap adjustment processing (S31). The gap adjusting process is a process in which the operator appropriately adjusts the nozzle gap according to the thickness of the lower cloth 8 and the like. For example, an operator inputs an instruction to raise or lower the nozzle plate 59 to the operation unit 19 . The CPU 101 drives and controls the nozzle gap adjustment motor 68 (see FIG. 8) according to the detection result of the operation section 19 to swing the lower transport mechanism section 60 and move the nozzle plate 59 up and down. The operator operates the operation part 19 so that the nozzle gap is appropriate. At this time, the upper cloth plate 90 is at the retracted position, and the upper cloth 7 is not placed on the nozzle plate 59 and the second cross plate 58 . Therefore, the operator can easily visually recognize the vertical distance between the nozzle plate 59 and the discharge port 27 . When the operator inputs an instruction to end the clearance adjustment process to the operation unit 19, the CPU 101 shifts the process to S32.

The CPU 101 determines whether or not the roller movement instruction is detected based on the detection result of the operation unit 19 (S32). Until the roller movement instruction is detected (S32: NO), the CPU 101 returns to S32 and waits. During standby, the operator rotates the upper cloth plate 90 clockwise in plan view to move from the retracted position to the operating position. The operator places the upper cloth 7 on the nozzle plate 59 , the upper support portion 26 of the nozzle 24 , the upper cloth plate 90 and the second cross plate 58 . The upper cloth 7 overlaps the lower cloth 8 from above between the lower conveying roller 64 and the upper conveying roller 12 . After placing the top cloth 7 , the operator inputs a roller movement instruction to the operation section 19 . When the roller movement instruction is detected (S32: YES), the CPU 101 drives and controls the arm air cylinder 15 to lower the upper conveying roller 12 to the contact position (S33). The upper conveying roller 12 sandwiches the lower cloth 8 and the upper cloth 7 between itself and the lower conveying roller 64 .

The CPU 101 drives and controls the lower air cylinder 711 to raise the lower nipping roller 76 (S35). When the lower air cylinder 711 moves the pin 712 leftward, the biasing force of the tension spring 715 causes the lower clamping unit 70 to rotate counterclockwise in a front view, and the rotation shaft 75 and the lower clamping roller 76 rise. Therefore, the lower nipping roller 76 moves from the lower released position to the lower nipping position. The lower nipping roller 76 nips the lower cloth 8 between itself and the lower surface of the upper cloth plate 90 . The CPU 101 drives and controls the upper air cylinder 49 to lower the upper nipping roller 42 (S36). The upper nipping roller 42 moves from the upper released position to the upper nipping position. The upper nipping roller 42 pinches the upper cloth 7 between itself and the upper surface of the upper cloth plate 90 . The CPU 101 executes adhesion processing (S37). The bonding process is a process of bonding the lower specific end 8A of the lower cloth 8 and the upper specific end 7A of the upper cloth 7 with an adhesive. The details of the adhesion processing will be described later.

The injection process will be described with reference to FIG. The CPU 101 executes injection processing independently for each of the upper injection section 150 and the lower injection section 160 . After executing the injection process, the CPU 101 sets the number of times of injection to 0 (S41). The injection number is a counter that counts the number of times air is injected in one execution of the injection process, and is stored in the RAM 103 . The CPU 101 drives and controls the upper sensor section 85 and the lower sensor section 78, and receives detection signals from the upper light receiving section 85B and the lower light receiving section 78B. Based on the detection signal, the CPU 101 calculates the amount of light received by the upper light receiving portion 85B and the lower light receiving portion 78B (S42). The CPU 101 stores the calculated light receiving amount in the RAM 103 as the initial light receiving amount.

As the amount of dust or dust adhering to the reflecting plates 28 and 95 increases, the amount of reflected light decreases, and the amount of light received by the upper light receiving section 85B and the lower light receiving section 78B decreases. The CPU 101 determines whether or not the amount of light received by the upper light receiving portion 85B and the lower light receiving portion 78B is equal to or greater than a preset value (S45). When the amount of dust or dust adhering to the reflectors 28 and 95 is small and the amount of light received by the upper light receiving portion 85B and the lower light receiving portion 78B is equal to or greater than the predetermined value (S45: YES), the CPU 101 ends the ejection process and Return to processing. When the amount of dust or dust adhering to the reflectors 28 and 95 is large and the amount of light received by the upper light receiving portion 85B and the lower light receiving portion 78B is less than the predetermined value (S45: NO), the CPU 101 increases the number of injections by 1 ( S46). The CPU 101 drives and controls the open/close valves 156 and 166 to open them, and the air nozzles 151 and 161 inject air for the first time (S47).

When the on-off valves 156 and 166 are opened, the CPU 101 starts timing the injection time. Until the initial value or the injection time set by the operator elapses (S48: NO), the CPU 101 returns to S48 and maintains the on-off valves 156 and 166 in an open state. When the injection time has elapsed (S48: YES), the CPU 101 drives and controls the on-off valves 156 and 166 to close them, and stops the air injection from the air nozzles 151 and 161 (S50). The CPU 101 drives and controls the upper sensor section 85 and the lower sensor section 78, and calculates the amount of received light based on the detection signals received from the upper light receiving section 85B and the lower light receiving section 78B (S51). The CPU 101 determines whether or not the amount of light received by the upper light receiving portion 85B and the lower light receiving portion 78B is equal to or greater than a predetermined value (S52). If the amount of received light is greater than or equal to the predetermined value after blowing off debris or dust adhering to the reflecting plates 28 and 95 (S52: YES), the CPU 101 ends the ejection process and returns to the main process.

If the amount of received light is less than the predetermined value because the debris or dust adhering to the reflecting plates 28 and 95 is not sufficiently cleaned (S52: NO), the CPU 101 stores the amount of received light calculated in S51 in the RAM 103 as the initial amount of received light. (S53). If the amount of received light is less than the predetermined value but is equal to or greater than the amount of received light for the first time (S53: YES), the CPU 101 assumes that the debris or dust has been blown off, ends the injection process, and returns to the main process. When the received light amount calculated in S51 is less than the initial received light amount (S53: NO), the CPU 101 determines whether or not the number of times of injection is two (S55). When the number of injections is one (S55: NO), the CPU 101 returns the process to S46 and increases the number of injections by one.

The CPU 101 executes S47 to S50 again to inject air for the second time. If the amount of received light calculated after the second injection of air is equal to or greater than the predetermined value (S52: YES) or equal to or greater than the amount of received light for the first time (S53: YES), the CPU 101 ends the injection process and returns to the main process. If the received light amount is less than the initial received light amount (S52: NO, S53: NO, S55: YES), the reflectors 28 and 95 may have dirt or the like that cannot be blown off with air. There is also a possibility that the upper sensor section 85 and the lower sensor section 78 are out of order. If the reflectors 28 and 95 are non-retroreflective mirrors, the upper sensor section 85 and the lower sensor section 78 may not be able to detect the reflected light normally if there is an abnormality in the angle of reflection. The CPU 101 displays an error on the liquid crystal screen provided in the information input section of the operation section 19, and outputs an error sound from the speaker to notify the error (S56). After reporting the error, the CPU 101 terminates the injection process and the main process.

The bonding process will be described with reference to FIG. When the bonding process is executed, the CPU 101 determines whether or not a start instruction has been detected based on whether or not the operator has operated the footboard 18 (S61). Until the start instruction is detected (S61: NO), the CPU 101 returns to S61 and waits. The start instruction is an instruction to start the bonding operation.

When the operator inputs a start instruction by operating the footboard 18 (S61: YES), the CPU 101 drives and controls the upper conveying motor 14 and the lower conveying motor 63, and the upper conveying rollers 12 and the lower conveying rollers 64 are operated. Driving is started (S62). The upper conveying roller 12 and the lower conveying roller 64 cooperate to convey the lower cloth 8 and the upper cloth 7 rearward. The nozzle lower roller 65 rotates together with the lower conveying roller 64 and assists in conveying the lower cloth 8 rearward.

The CPU 101 drives and controls the pump motor 36 to start discharging the adhesive (S63). The supply mechanism unit 35 supplies the adhesive to the nozzle 24 by driving the pump motor 36 . The discharge port 27 discharges the adhesive toward the lower specific end portion 8A of the lower cloth 8 positioned below. The upper conveying roller 12, the lower conveying roller 64, and the lower nozzle roller 65 convey the lower cloth 8 and the upper cloth 7 backward while the discharge port 27 applies the adhesive to the lower specific end portion 8A.

The CPU 101 determines whether or not the lower specific end portion 8A is at the lower detection position based on the detection result of the lower sensor portion 78 (S65). When the lower specific end portion 8A is at the lower detection position (S65: YES), the CPU 101 drives and controls the lower nipping motor 72 to rotate the lower nipping roller 76 in the first output direction (S66). The first output direction is the rotation direction in which the upper end of the lower nipping roller 76 faces leftward. The lower nipping roller 76 rotating in the first output direction moves the lower specific end 8A to the left. At this time, the lower specific end portion 8A moves away from the lower detection position. The CPU 101 shifts the process to S68.

When the lower specific end portion 8A is not at the lower detection position (S65: NO). The CPU 101 drives and controls the lower nipping motor 72 to rotationally drive the lower nipping roller 76 in the second output direction (S67). The second output direction is opposite the first output direction. The lower nipping roller 76 rotating in the second output direction moves the lower specific end 8A to the right. At this time, the lower specific end portion 8A moves toward the lower detection position. The CPU 101 shifts the process to S68.

The CPU 101 determines whether or not the upper specific end portion 7A is at the upper detection position based on the detection result of the upper sensor portion 85 (S68). When the upper specific end portion 7A is at the upper detection position (S68: YES), the CPU 101 drives and controls the upper nipping motor 48 to rotate the upper nipping roller 42 in the third output direction (S70). The third output direction is the rotation direction in which the lower end of the upper nipping roller 42 faces rightward. The upper nipping roller 42 rotating in the third output direction moves the upper specific end 7A to the right. At this time, the upper specific end portion 6A moves away from the upper detection position. The CPU 101 shifts the process to S72.

When the upper specific end portion 7A is not at the upper detection position (S68: NO), the CPU 101 drives and controls the upper nipping motor 48 to rotationally drive the upper nipping roller 42 in the fourth output direction (S71). The fourth output direction is opposite the third output direction. The upper nipping roller 42 rotating in the fourth output direction moves the upper specific end 7A to the left. At this time, the upper specific end portion 6A moves toward the upper detection position. The CPU 101 shifts the process to S72.

The CPU 101 determines whether or not an instruction to end the bonding process has been detected based on the detection result of the footboard 18 (S72). When the end instruction of the bonding process is not detected (S72: NO), the CPU 101 determines whether or not the end of the lower cloth 8 is detected based on the detection result of the end sensor section 79 (S73). If the end of the lower cloth 8 is not detected (S73: NO), the CPU 101 returns to S65 and repeats the process. The lower cloth 8 to which the adhesive has been applied enters between the lower conveying roller 64 and the upper conveying roller 12 . The upper conveying roller 12 and the lower conveying roller 64 press the lower specific end portion 8A and the upper specific end portion 7A against each other with an adhesive to convey them backward. Therefore, the cloth bonding apparatus 1 bonds the lower specific end portion 8A and the upper specific end portion 7A with an adhesive.

When the CPU 101 repeatedly executes S65 to S71, the lower nipping roller 76 is rotationally driven in the first output direction or the second output direction. For example, when the lower specified edge 8A curves to the left front side, the lower specified edge 8A passes the left side of the lower detection position as the lower cloth 8 moves backward (S65: NO). The CPU 101 rotationally drives the lower nipping roller 76 in the second output direction (S67). Therefore, even when the lower specific end portion 8A curves to the left front side, the cloth bonding apparatus 1 can suppress the displacement of the positional relationship between the lower specific end portion 8A passing below the discharge port 27 and the discharge port 27 in the left-right direction.

When the lower specific end portion 8A extends linearly in the front-rear direction, the CPU 101 alternately rotates the lower nipping roller 76 in the first output direction and the second output direction (S65: YES, S66, S65: NO, S67). ). Therefore, the cloth bonding apparatus 1 can suppress the displacement of the positional relationship between the lower specific end portion 8A passing below the discharge port 27 and the discharge port 27 in the horizontal direction.

When the CPU 101 repeatedly executes S65 to S71, the upper nipping roller 42 is rotationally driven in the third output direction or the fourth output direction. When the upper specific end portion 7A curves to the right front side, the upper specific end portion 7A passes the right side of the upper detection position as the upper cloth 7 moves rearward (S68: NO). The CPU 101 rotationally drives the upper nipping roller 42 in the fourth output direction (S71). Therefore, the cloth bonding apparatus 1 can suppress displacement of the positional relationship between the upper specific end portion 7A passing through the upper support portion 26 and the discharge port 27 in the left-right direction.

When the upper specific end portion 7A extends linearly in the front-rear direction, the CPU 101 rotates the upper nipping roller 42 alternately in the third output direction and the fourth output direction (S68: YES, S70, S68: NO, S71). Therefore, the cloth bonding apparatus 1 can suppress the displacement of the positional relationship between the upper specific end portion 7A passing through the upper support portion 26 and the discharge port 27 in the left-right direction.

By repeatedly executing S65 to S71 by the CPU 101, the cloth bonding apparatus 1 can adjust the lateral positions of the lower specific end portion 8A and the upper specific end portion 7A that pass through the nozzle 24. FIG. Therefore, the lateral length of the upper specific end portion 7A, which vertically overlaps the lower specific end portion 8A, can be kept within a predetermined range.

When the end of the lower cloth 8 is detected based on the detection result of the end sensor section 79 (S73: YES), the CPU 101 stops driving control of the lower clamping motor 72 and the upper clamping motor . The lower nipping roller 76 and the upper nipping roller 42 stop rotating, and the position adjustment of the lower cloth 8 and the upper cloth 7 stops (S75). When the CPU 101 detects the end of the lower cloth 8, it starts counting the standby time. The standby time is the time it takes for the trailing edge of the lower cloth 8 to pass through the edge detection position until it passes through the pressing point between the upper conveying roller 12 and the lower conveying roller 64 . Until the standby time elapses (S76: NO), the CPU 101 returns to S76 and waits. The CPU 101 continues conveying and adhering without adjusting the positions of the upper cloth 7 and the lower cloth 8 . When the waiting time has passed (S76: YES), the CPU 101 stops driving the upper transport motor 14, the lower transport motor 63, and the pump motor 36 (S77). Therefore, the CPU 101 stops conveying and adhering the upper cloth 7 and the lower cloth 8 after surely adhering the end portion of the lower cloth 8 . The CPU 101 executes injection processing (S78). The injection process of S78 is the same as the process of S27 in FIG. The upper jet part 150 blows off dust or debris adhering to the reflecting plate 28 with air. The lower jet part 160 blows off dust or debris adhering to the reflectors 95 and 96 with air. The CPU 101 ends the bonding process and ends the main process.

When finishing the bonding process before the end of the lower cloth 8 is detected, the operator operates the footboard 18 to input an instruction to finish the bonding process. When an instruction to end the bonding process is detected (S72: YES), the CPU 101 stops driving the upper conveying motor 14, the lower conveying motor 63, the pump motor 36, the lower clamping motor 72, and the upper clamping motor 48 (S77). After executing the ejection process (S78), the CPU 101 ends the adhesion process and ends the main process.

As described above, dust generated from the upper cloth 7 and the lower cloth 8 or dust in the air adheres to the reflectors 28 and 95 due to static electricity caused by friction during transportation of the upper cloth 7 and the lower cloth 8. there is a possibility. Light emitted from the upper sensor portion 85, the upper light emitting portion 85A of the lower sensor portion 78, and the lower light emitting portion 78A reaches the upper light receiving portion 85B and the lower light receiving portion 78B via the reflectors 28 and 95. Block the light in the process. At this time, the amount of light received by the upper light-receiving portion 85B and the lower light-receiving portion 78B is reduced, and the detection accuracy of the upper cloth 7 and the lower cloth 8 by the upper sensor portion 85 and the lower sensor portion 78 may be lowered. The air blows away dust and debris adhering to the reflecting plates 28 and 95 while the upper transport mechanism 10, the lower transport mechanism 60 and the supply mechanism 35 are stopped. Therefore, the upper sensor portion 85 and the lower sensor portion 78 can maintain the detection accuracy of whether or not the upper cloth 7 and the lower cloth 8 are present at the upper detection position and the lower detection position. Detection accuracy of the portion 7A and the lower specific end portion 8A of the lower cloth 8 can be ensured.

The upper sensor section 85 can maintain the accuracy of detecting whether or not the upper specific end portion 7A of the upper cloth 7 is present at the upper detection position. The lower sensor portion 78 can maintain detection accuracy as to whether or not the lower specific end portion 8A of the lower cloth 8 is present at the lower detection position. Therefore, the cloth bonding apparatus 1 can ensure bonding quality when bonding the upper specific end portion 7A and the lower specific end portion 8A.

The operator can place the upper cloth 7 and the lower cloth 8 when the upper conveying roller 12 is in the upper position. At this time, the upper jetting part 150 and the lower jetting part 160 jet air to blow off the chips and dust adhering to the reflectors 28 and 95 . That is, every time the upper cloth 7 and the lower cloth 8 are arranged, the air is always jetted. When the upper conveying roller 12 is moved from the contact position to the upper position, that is, before the upper cloth 7 and the lower cloth 8 are arranged, the air is jetted. Disturbance of the upper cloth 7 and the lower cloth 8 due to the application of air to the upper cloth 7 and the lower cloth 8 can be prevented.

The operator operates the knee switch 19A to increase the nozzle gap between the second cross plate 58, the nozzle plate 59 and the discharge port 27 of the nozzle 24. FIG. At this time, the upper jetting part 150 jets air to blow off dust and debris adhering to the reflecting plate 28 . When the nozzle gap between the second cross plate 58/nozzle plate 59 and the discharge port 27 of the nozzle 24 is the retraction gap, the operator can place the lower cloth 8 on the second cross plate 58/nozzle plate 59 . That is, every time the lower cloth 8 is placed, the air is always jetted, so that the cloth bonding apparatus 1 can prevent forgetting to clean the reflecting plate 28 . When changing the nozzle gap between the second cross plate 58, the nozzle plate 59 and the discharge port 27 of the nozzle 24 from the bonding gap to the retraction gap, that is, before the upper cloth 7 is placed, the air is jetted. can prevent the upper cloth 7 from being disturbed due to air being applied to the upper cloth 7 after arrangement.

When the cloth bonding apparatus 1 bonds the upper cloth 7 and the lower cloth 8, the upper cloth 7 and the lower cloth 8 always pass through the end detection position. The upper jetting portion 150 and the lower jetting portion 160 jet air after the lower cloth 8 has passed the end detection position, and blow away the chips and dust adhering to the reflecting plates 28 and 95 . That is, when the upper cloth 7 and the lower cloth 8 are adhered, the air is always jetted at the end of the adhesion, so that the cloth bonding apparatus 1 can prevent the reflecting plates 28 and 95 from being forgotten to be cleaned. Further, since the air is jetted after the upper cloth 7 and the lower cloth 8 are adhered, the cloth bonding apparatus 1 can prevent the upper cloth 7 and the lower cloth 8 from being disturbed by the air being applied to the upper cloth 7 and the lower cloth 8. .

Since the cloth bonding apparatus 1 can adjust the injection amount of the air from the air nozzles 151, 161 by means of the adjustment valves 152, 162 provided in the flow pipes 155, 165, it is possible to prevent the debris and dust adhering to the reflecting plates 28, 95 from being blown off. cleaning failure can be prevented, and the accuracy of detecting whether or not the upper cloth 7 and the lower cloth 8 are present at the upper detection position and the lower detection position can be maintained.

By setting the air injection period, the cloth bonding apparatus 1 can adjust the amount of air injected from the air nozzles 151 and 161 . Therefore, the cloth bonding apparatus 1 prevents cleaning failures such as the inability to blow off dust and dust adhering to the reflectors 28 and 95, and determines whether the upper cloth 7 and the lower cloth 8 are present at the upper detection position and the lower detection position. The detection accuracy can be maintained.

The cloth bonding apparatus 1 can change the opening directions of the air nozzles 151 and 161 by adjusting the fixing positions of the support plate 153 and the support box 163 . Therefore, the cloth bonding apparatus 1 can reliably inject air to the reflecting plates 28 and 95, and can maintain detection accuracy of whether or not the upper cloth 7 and the lower cloth 8 are present at the upper detection position and the lower detection position. .

Since the support plate 153 and the support box 163 of the cloth bonding apparatus 1 can move in the conveying direction, the air can be reliably jetted to the reflectors 28 and 95, and the upper cloth 7 and the lower cloth 8 are present at the upper detection position and the lower detection position. It is possible to maintain the detection accuracy of whether or not

The CPU 101 of the cloth bonding apparatus 1 injects air when the amount of light received by the upper light receiving portion 85B and the lower light receiving portion 78B is less than a predetermined value. In other words, the CPU 101 blows off the dust only when the reflecting plates 28 and 95 are covered with dust. Therefore, the cloth bonding apparatus 1 can prevent the upper cloth 7 and the lower cloth 8 from being disturbed without blowing air unnecessarily.

After the air is injected, the CPU 101 determines again whether the amount of light received by the upper light-receiving portion 85B and the lower light-receiving portion 78B is less than the predetermined value, and if it is still less than the predetermined value, the air is injected. If the amount of light received by the upper light receiving portion 85B and the lower light receiving portion 78B is less than a predetermined value even after injecting air twice, the CPU 101 notifies an error. Therefore, the cloth bonding apparatus 1 can notify failures of the upper sensor section 85 and the lower sensor section 78, contamination of the reflectors 28 and 95, and the like, and can prevent continuous injection of air.

In the above description, the lower cloth 8 is an example of the lower sheet of the present invention. The supply mechanism section 35 is an example of the supply mechanism of the present invention. The upper cloth 7 is an example of the upper sheet of the present invention. The upper transport mechanism section 10 and the lower transport mechanism section 60 are examples of the transport mechanism of the present invention. The CPU 101 that executes the processes of S62 and S63 is an example of the ejection transport control section of the present invention. The cloth bonding apparatus 1 is an example of the bonding apparatus of the present invention. The upper sensor section 85 and reflector 28, and the lower sensor section 78 and reflector 95 are examples of the detection section of the present invention. The air nozzles 151 and 161 are examples of injection ports of the present invention. The CPU 101 that executes the processes of S47, S48, and S50 is an example of the air control section of the present invention.

The horizontal direction is an example of a specific direction in the present invention. The upper cloth plate 90 is an example of the support member of the present invention. The CPU 101 that executes the processes of S68, S70, and S71 is an example of the upper motor control section of the present invention. The second cross plate 58 and nozzle plate 59 are examples of the lower support part of the present invention. The CPU 101 that executes the processes of S65, S66, and S67 is an example of the lower motor control section of the present invention. The upper sensor section 85 and the reflector 28 are examples of the upper detection section of the present invention, and the lower sensor section 78 and the reflector 95 are examples of the lower detection section of the present invention. The support arm 11 is an example of the upper transfer arm of the present invention. The arm air cylinder 15 is an example of the upper driving section of the present invention. The CPU 101 that executes the process of S15 is an example of the upper drive control section of the present invention. The nozzle gap adjusting motor 68 and the cam plate 69 are examples of the gap changing mechanism of the present invention. Knee switch 19A is an example of a change switch of the present invention. The CPU 101 that executes the process of S26 is an example of the gap control section of the present invention.

The termination sensor section 79 is an example of the termination detection section of the present invention. The regulating valves 152 and 162 are examples of the regulating section of the present invention. The CPU 101 that executes the process of S13 is an example of the setting section of the present invention. The support plate 153 is an example of the tube support part of the present invention. The CPU 101 that executes the process of S42 is an example of the light amount calculator of the present invention. The CPU 101 that executes the process of S45 is an example of the light intensity determination section of the present invention. The CPU 101 that executes the first processing of S52 is an example of the re-determination unit of the present invention. The CPU 101 that executes the second process of S52 is an example of the error determination section of the present invention. CPU101 which performs the process of S56 is an example of the notification part of this invention.

The present invention can be modified in various ways in addition to the above embodiments. In the above embodiment, the cloth bonding apparatus 1 in which the cylindrical lower conveying device 50 is fixed has been described as an example, but the shape and structure of the lower conveying device that conveys the lower cloth 8 may be different from those in the above embodiment. . As shown in FIG. 12, in the cloth bonding apparatus 1, the lower conveying device 250 may be fixed to the left surface of the fixing plate 2A of the base portion 2. As shown in FIG. A housing of the lower transport device 250 has a rectangular box shape elongated in the left-right direction in plan view, and accommodates the lower transport mechanism section in the left part. The lower conveying device 250 fixes the support plate 210, which is generally L-shaped in plan view, to the opening of the upper part of the housing. The housing to which the support plate 210 is fixed has an opening at the right rear portion. The lower conveying device 250 has an air cylinder 230 and a movable body (not shown) in the right rear portion of the housing. The movable body is driven by the air cylinder 230 to move in the lateral direction within the housing. A movable plate 220 having a substantially rectangular shape in plan view is fixed on the upper surface of the movable body. The movable plate 220 covers the opening on the right rear side of the support plate 210 . Therefore, the upper surfaces of the support plate 210 and the movable plate 220 form a bed on which the cloth to be bonded can be placed. 12 and 13, illustration of the upper clamping unit 40 is omitted.

As for the movable body, an upper cloth plate 290 similar to that of the present embodiment is fixed to the left rear portion. The upper cloth plate 290 is provided adjacent to the left rear portion of the movable plate 220 and extends leftward. The top surface of the upper cloth plate 290 is at substantially the same height as the top surface of the movable plate 220 . During bonding, the support plate 210 supports the lower cloth 8 from below, and the movable plate 220 and the upper cloth plate 290 support the upper cloth 7 from below.

The CPU 101 of the cloth bonding apparatus 1 drives and controls the air cylinder 230 according to the operation of the movement switch 19B provided in the operation section 19, and moves the movable plate 220 and the upper cloth plate 290 integrally in the horizontal direction via the movable body. do. When the movable body is positioned at the left end of its range of movement, the upper cloth plate 290 is in the operating position directly below the upper nipping roller 42 and above the lower nipping roller 76 . When the movable body is positioned at the right end of the movement range, the upper cloth plate 290 is in the retracted position to the right of the position between the upper nipping roller 42 and the lower nipping roller 76 .

As shown in FIG. 13, the lower conveying device 250 includes a lower injection section 260 similar to that of the above embodiment. The lower jetting section 260 is arranged in the housing of the lower conveying device 250 to the right of the lower nipping roller 76 and below the upper jetting section 150 . The lower jet part 260 directs the opening direction of the air nozzle 261 to the position of the reflector 295 when the upper cloth plate 290 is at the retracted position. When performing the bonding work, the operator moves the upper cloth plate 290 from the operating position to the retracted position, places the lower cloth 8 on the support plate 210, and returns the upper cloth plate 290 to the operating position. The upper cloth 7 is placed on the upper cloth plate 290 and the movable plate 220 . Therefore, since the CPU 101 receives the operator's operation of the movement switch 19B before executing the bonding process, the injection process may be executed at that time.

The CPU 101 executes the movement process in parallel when executing the main process. As shown in FIG. 14, the CPU 101 disables the operation and waits for the process at the beginning of the movement process (S90: NO). When detecting the nozzle displacement instruction in S20 of the main process, the CPU 101 validates the movement process and accepts the operation of the movement switch 19B (S90: YES). The CPU 101 returns to S90 and waits until the movement switch 19B is turned on (S91: NO). When the operator turns on the movement switch 19B to place the lower cloth 8 on the support plate 210 (S91: YES), the CPU 101 drives and controls the air cylinder 230 to move the movable body rightward. . The upper cloth plate 290 moves from the operating position to the retracted position (S92).

The CPU 101 executes injection processing (S93). The injection process of S93 is the same as the process of S27 in FIG. The upper jetting part 150 jets air from an air nozzle 151 toward the reflecting plate 28 to blow off debris or dust adhering to the reflecting plate 28 . The lower jetting section 260 jets air from an air nozzle 261 toward the lower surface of the upper cloth plate 290 to blow off the scraps or dust adhering to the reflecting plate 295 . The CPU 101 returns to S95 and waits until the operator turns off the movement switch 19B (S95: NO). When the worker finishes placing the lower cloth 8 on the support plate 210 and turns off the movement switch 19B (S95: YES), the CPU 101 drives and controls the air cylinder 230 to move the movable body leftward. The upper cloth plate 290 moves from the retracted position to the operating position (S96). The CPU 101 shifts the process to S90 and accepts the operation of the movement switch 19B. The CPU 101 invalidates the movement process when detecting the roller movement instruction in S32 of the main process.

As described above, when the operator operates the movement switch 19B to move the upper cloth plate 290 to the retracted position, the operator can easily place the lower cloth 8 on the support plate 210. FIG. At this time, the upper jetting part 150 and the lower jetting part 260 jet air to blow off the chips and dust adhering to the reflectors 28 and 295 . That is, every time the upper cloth 7 and the lower cloth 8 are arranged, the air is always jetted, so that the cloth bonding apparatus 1 can prevent forgetting to clean the reflecting plates 28 and 295 . Since the air is jetted when the upper cloth plate 290 is moved from the operating position to the retracted position, the cloth bonding apparatus 1 can prevent the upper cloth 7 and the lower cloth 8 from being damaged by the air applied to the upper cloth 7 and the lower cloth 8 after being arranged. Disturbance can be prevented. In the description of the modification above, the air cylinder 230 is an example of the moving mechanism of the present invention. The CPU 101 that executes the process of S92 is an example of the movement control section of the present invention.

The above-described embodiment relates to the cloth bonding apparatus 1 for bonding cloths together. However, the bonding apparatus can bond sheets made of materials other than cloth, such as paper, felt, thin plate, and vinyl, as long as they are in the form of sheets. good too. The upper specific end portion 7A and the lower specific end portion 8A may be, for example, both ends of one sheet. In this case, the cloth bonding apparatus 1 may overlap and bond both ends of a sheet folded into a cylindrical shape. The upper sensor section 85 of the above embodiment is an optical sensor integrally including the upper light emitting section 85A and the upper light receiving section 85B, but the upper light emitting section 85A and the upper light receiving section 85B may be provided at separate positions. The same applies to the lower sensor section 78 and the end sensor section 79 . The termination sensor section 79 may not be provided.

The opening direction of the air nozzles 151 and 161 is directed toward the reflectors 28 and 95 , but may be directed toward the upper sensor section 85 and the lower sensor section 78 . The air nozzles 151 , 161 may be bifurcated at the tip and the opening directions thereof may be directed toward the reflectors 28 , 95 and the upper sensor section 85 and the lower sensor section 78 . The opening direction of the air nozzles 151 and 161 is adjusted by the position at which the regulating valve 152 and the support box 163 are fixed. may For the air nozzles 151 and 161, for example, a flexible pipe may be used so that the opening direction can be freely adjusted. The support plate 153 has a hole (not shown) which is larger than the diameter of the shaft of the fixing screw 154 at its upper end. abbreviated). At this time, the opening position of the tip of the air nozzle 151 can be adjusted in the horizontal direction and the vertical direction. Only one of the upper injection section 150 and the lower injection section 160 may be provided.

The reflectors 28 and 95 may not be provided. In this case, the upper sensor section 85 may be provided with the upper light receiving section 85B at the output destination of the light emitted from the upper light emitting section 85A. The air nozzle 151 may be directed toward the upper light-emitting portion 85A or the upper light-receiving portion 85B. The same applies to the lower sensor section 78 and the end sensor section 79 .

A discharge port 27 of the nozzle 24 is formed at the bottom of the upper support portion 26 and discharges the adhesive toward the lower cloth 8 . The discharge port of the nozzle may discharge the adhesive toward the upper cloth 7 . At this time, the ejection port may be formed on the surface of the upper support portion 26 facing the upper cloth 7 .

The upper injection part 150 and the lower injection part 160 may inject hot air, for example. In this case, the upper injection part 150 is less likely to cool the nozzle 24 even if the injection period is long, so that the debris or dust can be blown off more reliably. In S55 of the injection process, an error notification is given when the number of injections reaches two, but the number of injections to be determined may be one or three or more. The processing of S42, S43, and S53 may be omitted.

1 Cloth Bonding Device 7 Upper Cloth 7A Upper Specific Edge 8 Lower Cloth 8A Lower Specific Edge 10 Upper Conveyance Mechanism 11 Support Arm 12 Upper Conveyance Roller 15 Arm Air Cylinder 19A Knee Switch 19B Movement Switch 24 Nozzle 26B Recess 27 Discharge Port 28 , 95 reflector 35 supply mechanism 42 upper clamping roller 48 upper clamping motor 58 second cross plate 58D opening 59 nozzle plate 59C through hole 60 lower transport mechanism 64 lower transport roller 68 nozzle gap adjusting motor 69 cam plate 72 lower clamping Motor 76 Lower nipping roller 78 Lower sensor portions 78A, 85A Upper light emitting portions 78B, 85B Upper light receiving portion 79 End sensor portion 85 Upper sensor portion 90 Upper cloth plates 151, 161 Air nozzles 152, 162 Regulating valve 153 Support plates 155, 165 Distribution pipe 230 air cylinder

Claims (14)

a nozzle provided on the upper side of the lower sheet and having a discharge port for discharging the adhesive;
a supply mechanism that supplies the adhesive to the nozzle;
Conveyance in which the lower sheet to which the adhesive is adhered and the upper sheet overlapping the lower sheet from above are sandwiched in the vertical direction and conveyed in the conveying direction downstream of the nozzle in the conveying direction of the lower sheet. a mechanism;
A discharge/conveyance control unit that controls driving of the conveying mechanism and the supply mechanism, discharges the adhesive from the discharge port, and conveys the lower sheet and the upper sheet while being pressed against each other through the adhesive. In a bonding device comprising
A light emitting unit that emits light toward a detection position that is a predetermined position upstream in the transport direction from the transport mechanism, and a light receiving unit that can receive the light emitted by the light emitting unit, and the light receiving unit receives the light. a detection unit that detects whether or not the lower sheet and the upper sheet are present at the detection position based on the amount of light;
an injection port connected to a circulation pipe through which air flows and capable of injecting air toward the detection unit;
An air control unit that controls injection of air from the injection port,
The air control unit injects air from the injection port while the ejection transport control unit stops driving the transport mechanism and the supply mechanism ,
and,
The ejection transport control unit applies the adhesive to a specific lower end portion, which is an end portion of the lower sheet on one side in a specific direction orthogonal to the transport direction and the vertical direction, while applying the adhesive to the specific lower end portion. , the one side and the upper specific end portion, which is the end portion of the upper sheet on the other side opposite to the other side, are pressed against each other and conveyed;
The detection unit detects whether the lower specific edge of the lower sheet is at the detection position,
The bonding device
a lower support portion that supports the lower sheet from below;
The lower support member protrudes upward from the lower support portion on the upstream side in the conveying direction with respect to the nozzle, is rotatable about the conveying direction as an axial direction, and supports the upper sheet from below. a lower nipping roller that nips the sheet;
a lower nipping motor that rotationally drives the lower nipping roller;
By controlling the driving of the lower nipping motor, when the detection unit detects that the specific lower end portion is present at the detection position, the lower nipping roller is rotationally driven in the first output direction to rotate the lower sheet. is moved to the other side, and when the detection unit detects that the lower specific end portion is not present at the detection position, the lower nipping roller is rotationally driven in the second output direction opposite to the first output direction. a lower motor control unit for moving the lower sheet to the one side by
with
Furthermore,
The size of the gap between the lower support portion and the ejection port can be changed between an adhesive gap that is the size when the adhesive is ejected onto the lower sheet, and a retraction gap that is larger than the adhesive gap. a gap changing mechanism,
a change switch for receiving an instruction to drive the gap change mechanism;
When the change switch receives an instruction to stop driving the transport mechanism and the supply mechanism by the discharge transport control unit, the drive of the gap change mechanism is controlled to change the gap between the lower support part and the nozzle. a gap control unit that changes the bonding gap to the retraction gap;
with
The air control unit is configured to inject air when the gap control unit drives and controls the gap changing mechanism.
A gluing device characterized by: a nozzle provided on the upper side of the lower sheet and having a discharge port for discharging the adhesive;
a supply mechanism that supplies the adhesive to the nozzle;
Conveyance in which the lower sheet to which the adhesive is adhered and the upper sheet overlapping the lower sheet from above are sandwiched in the vertical direction and conveyed in the conveying direction downstream of the nozzle in the conveying direction of the lower sheet. a mechanism;
A discharge/conveyance control unit that controls driving of the conveying mechanism and the supply mechanism, discharges the adhesive from the discharge port, and conveys the lower sheet and the upper sheet while being pressed against each other through the adhesive. When
In a bonding device comprising
A light emitting unit that emits light toward a detection position that is a predetermined position upstream in the transport direction from the transport mechanism, and a light receiving unit that can receive the light emitted by the light emitting unit, and the light receiving unit receives the light. a detection unit that detects whether or not the lower sheet and the upper sheet are present at the detection position based on the amount of light;
an injection port connected to a circulation pipe through which air flows and capable of injecting air toward the detection unit;
an air control unit that controls injection of air from the injection port;
with
The air control unit injects air from the injection port while the ejection transport control unit stops driving the transport mechanism and the supply mechanism,
and,
The ejection transport control unit applies the adhesive to a specific lower end portion, which is an end portion of the lower sheet on one side in a specific direction orthogonal to the transport direction and the vertical direction, while applying the adhesive to the specific lower end portion. , the one side and the upper specific end portion, which is the end portion of the upper sheet on the other side opposite to the other side, are pressed against each other and conveyed;
The detection section includes an upper detection section for detecting whether or not the upper specific edge of the upper sheet is at the upper detection position which is the detection position for the upper sheet, and the lower specific edge of the lower sheet. a lower detection unit for detecting whether or not is at the lower detection position which is the detection position for the lower sheet,
The bonding device
a support member that supports the upper sheet from below;
an upper nipping roller rotatable with the conveying direction as an axial direction, and nipping the upper sheet between itself and the support member from above;
an upper nipping motor that rotationally drives the upper nipping roller;
By controlling the drive of the upper nipping motor, when the upper detection unit detects that the upper specific end portion is at the upper detection position, the upper nipping roller is rotationally driven in the third output direction, and the When the upper sheet is moved to the one side and the upper detection unit detects that the upper specific edge is not present at the upper detection position, the upper nipping roller is moved to the fourth output opposite to the third output direction. an upper motor control unit that rotates in the direction to move the upper sheet to the other side;
a lower support portion that supports the lower sheet from below;
a lower nipping roller that protrudes upward from the lower support portion on the upstream side in the transport direction with respect to the nozzle, is rotatable about the transport direction as an axial direction, and sandwiches the lower sheet between itself and the support member;
a lower nipping motor that rotationally drives the lower nipping roller;
By controlling the driving of the lower nipping motor, when the lower detection unit detects that the lower specific end portion is at the lower detection position, the lower nipping roller is rotationally driven in the first output direction, and the When the lower sheet is moved to the other side and the lower detection unit detects that the specific lower edge is not present at the lower detection position, the lower nipping roller is moved to the second output direction opposite to the first output direction. a lower motor control unit that rotates in the direction to move the lower sheet to the one side;
with
Furthermore,
The size of the gap between the lower support portion and the ejection port can be changed between an adhesive gap that is the size when the adhesive is ejected onto the lower sheet, and a retraction gap that is larger than the adhesive gap. a gap changing mechanism,
a change switch for receiving an instruction to drive the gap change mechanism;
When the change switch receives an instruction to stop driving the transport mechanism and the supply mechanism by the discharge transport control unit, the drive of the gap change mechanism is controlled to change the gap between the lower support part and the nozzle. a gap control unit that changes the bonding gap to the retraction gap;
with
The air control unit is configured to inject air when the gap control unit drives and controls the gap changing mechanism.
A gluing device characterized by: The detection unit has a reflection unit provided on the side opposite to the light emission unit with respect to the detection position and reflecting the light emitted by the light emission unit toward the light reception unit,
3. The bonding apparatus according to claim 1, wherein said injection port is capable of injecting air toward said reflecting portion. a nozzle provided on the upper side of the lower sheet and having a discharge port for discharging the adhesive;
a supply mechanism that supplies the adhesive to the nozzle;
Conveyance in which the lower sheet to which the adhesive is adhered and the upper sheet overlapping the lower sheet from above are sandwiched in the vertical direction and conveyed in the conveying direction downstream of the nozzle in the conveying direction of the lower sheet. a mechanism;
A discharge/conveyance control unit that controls driving of the conveying mechanism and the supply mechanism, discharges the adhesive from the discharge port, and conveys the lower sheet and the upper sheet while being pressed against each other via the adhesive. When
In a bonding device comprising
A light emitting unit that emits light toward a detection position that is a predetermined position upstream in the transport direction from the transport mechanism, and a light receiving unit that can receive the light emitted by the light emitting unit, and the light receiving unit receives the light. a detection unit that detects whether or not the lower sheet and the upper sheet are present at the detection position based on the amount of light;
an injection port connected to a circulation pipe through which air flows and capable of injecting air toward the detection unit;
an air control unit that controls injection of air from the injection port;
with
The air control unit injects air from the injection port while the ejection transport control unit stops driving the transport mechanism and the supply mechanism,
and,
The ejection transport control unit applies the adhesive to a specific lower end portion, which is an end portion of the lower sheet on one side in a specific direction orthogonal to the transport direction and the vertical direction, while applying the adhesive to the specific lower end portion. , the one side and the upper specific end portion, which is the end portion of the upper sheet on the other side opposite to the other side, are pressed against each other and conveyed;
The detection unit detects whether the upper specific edge of the upper sheet is at the detection position,
The bonding device
a support member that supports the upper sheet from below;
an upper nipping roller rotatable with the conveying direction as an axial direction, and nipping the upper sheet between itself and the support member from above;
an upper nipping motor that rotationally drives the upper nipping roller;
By controlling the drive of the upper nipping motor, when the detection unit detects that the upper specific end portion is present at the detection position, the upper nipping roller is rotationally driven in the third output direction to rotate the upper sheet. is moved to the one side, and when the detection unit detects that the upper specific end portion is not present at the detection position, the upper nipping roller is rotationally driven in a fourth output direction opposite to the third output direction. an upper motor control section for moving the upper sheet to the other side by
with
Furthermore,
The detection unit has a reflection unit provided on the side opposite to the light emission unit with respect to the detection position and reflecting the light emitted by the light emission unit toward the light reception unit,
The injection port is capable of injecting air toward the reflecting portion,
In addition,
a movement mechanism capable of moving the support member between an operating position located upstream of the nozzle in the transport direction and a retracted position located on the one side of the specific direction with respect to the operating position;
a movement switch that receives an instruction to drive the movement mechanism;
When the movement switch receives an instruction to stop the driving of the transport mechanism and the supply mechanism by the ejection transport control unit, driving of the moving mechanism is controlled to move the support member from the operating position to the retracted position. and a movement control unit for
The reflecting portion is provided on the lower surface of the supporting member,
The injection port is provided so as to be able to inject air toward the reflecting portion when the support member is at the retracted position,
The bonding apparatus according to claim 1, wherein the air control section jets air after the support member moves from the operating position to the retracted position when the movement switch receives an instruction. a nozzle provided on the upper side of the lower sheet and having a discharge port for discharging the adhesive;
a supply mechanism that supplies the adhesive to the nozzle;
Conveyance in which the lower sheet to which the adhesive is adhered and the upper sheet overlapping the lower sheet from above are sandwiched in the vertical direction and conveyed in the conveying direction downstream of the nozzle in the conveying direction of the lower sheet. a mechanism;
A discharge/conveyance control unit that controls driving of the conveying mechanism and the supply mechanism, discharges the adhesive from the discharge port, and conveys the lower sheet and the upper sheet while being pressed against each other via the adhesive. When
In a bonding device comprising
A light emitting unit that emits light toward a detection position that is a predetermined position upstream in the transport direction from the transport mechanism, and a light receiving unit that can receive the light emitted by the light emitting unit, and the light receiving unit receives the light. a detection unit that detects whether or not the lower sheet and the upper sheet are present at the detection position based on the amount of light;
an injection port connected to a circulation pipe through which air flows and capable of injecting air toward the detection unit;
an air control unit that controls injection of air from the injection port;
with
The air control unit injects air from the injection port while the ejection transport control unit stops driving the transport mechanism and the supply mechanism,
and,
The ejection transport control unit applies the adhesive to a specific lower end portion, which is an end portion of the lower sheet on one side in a specific direction orthogonal to the transport direction and the vertical direction, while applying the adhesive to the specific lower end portion. , the one side and the upper specific end portion, which is the end portion of the upper sheet on the other side opposite to the other side, are pressed against each other and conveyed;
The detection unit detects whether the lower specific edge of the lower sheet is at the detection position,
The bonding device
a lower support portion that supports the lower sheet from below;
The lower support member protrudes upward from the lower support portion on the upstream side in the conveying direction with respect to the nozzle, is rotatable about the conveying direction as an axial direction, and supports the upper sheet from below. a lower nipping roller that nips the sheet;
a lower nipping motor that rotationally drives the lower nipping roller;
By controlling the driving of the lower nipping motor, when the detection unit detects that the specific lower end portion is present at the detection position, the lower nipping roller is rotationally driven in the first output direction to rotate the lower sheet. is moved to the other side, and when the detection unit detects that the lower specific end portion is not present at the detection position, the lower nipping roller is rotationally driven in the second output direction opposite to the first output direction. a lower motor control unit for moving the lower sheet to the one side by
with
Furthermore,
The detection unit has a reflection unit provided on the side opposite to the light emission unit with respect to the detection position and reflecting the light emitted by the light emission unit toward the light reception unit,
The injection port is capable of injecting air toward the reflecting portion,
In addition,
a movement mechanism capable of moving the support member between an operating position located upstream of the nozzle in the transport direction and a retracted position located on the one side of the specific direction with respect to the operating position;
a movement switch that receives an instruction to drive the movement mechanism;
When the movement switch receives an instruction to stop the driving of the transport mechanism and the supply mechanism by the ejection transport control unit, driving of the moving mechanism is controlled to move the support member from the operating position to the retracted position. and a movement control unit that
with
The reflecting portion is provided on the lower surface of the supporting member,
The injection port is provided so as to be able to inject air toward the reflecting portion when the support member is at the retracted position,
The air control unit jets air after the support member moves from the operating position to the retracted position when the movement switch receives an instruction.
A gluing device characterized by: a nozzle provided on the upper side of the lower sheet and having a discharge port for discharging the adhesive;
a supply mechanism that supplies the adhesive to the nozzle;
Conveyance in which the lower sheet to which the adhesive is adhered and the upper sheet overlapping the lower sheet from above are sandwiched in the vertical direction and conveyed in the conveying direction downstream of the nozzle in the conveying direction of the lower sheet. a mechanism;
A discharge/conveyance control unit that controls driving of the conveying mechanism and the supply mechanism, discharges the adhesive from the discharge port, and conveys the lower sheet and the upper sheet while being pressed against each other via the adhesive. When
In a bonding device comprising
A light emitting unit that emits light toward a detection position that is a predetermined position upstream in the transport direction from the transport mechanism, and a light receiving unit that can receive the light emitted by the light emitting unit, and the light receiving unit receives the light. a detection unit that detects whether or not the lower sheet and the upper sheet are present at the detection position based on the amount of light;
an injection port connected to a circulation pipe through which air flows and capable of injecting air toward the detection unit;
an air control unit that controls injection of air from the injection port;
with
The air control unit injects air from the injection port while the ejection transport control unit stops driving the transport mechanism and the supply mechanism,
and,
The ejection transport control unit applies the adhesive to a specific lower end portion, which is an end portion of the lower sheet on one side in a specific direction orthogonal to the transport direction and the vertical direction, while applying the adhesive to the specific lower end portion. , the one side and the upper specific end portion, which is the end portion of the upper sheet on the other side opposite to the other side, are pressed against each other and conveyed;
The detection section includes an upper detection section for detecting whether or not the upper specific edge of the upper sheet is at the upper detection position which is the detection position for the upper sheet, and the lower specific edge of the lower sheet. a lower detection unit for detecting whether or not is at the lower detection position which is the detection position for the lower sheet,
The bonding device
a support member that supports the upper sheet from below;
an upper nipping roller rotatable with the conveying direction as an axial direction, and nipping the upper sheet between itself and the support member from above;
an upper nipping motor that rotationally drives the upper nipping roller;
By controlling the drive of the upper nipping motor, when the upper detection unit detects that the upper specific end portion is at the upper detection position, the upper nipping roller is rotationally driven in the third output direction, and the When the upper sheet is moved to the one side and the upper detection unit detects that the upper specific edge is not present at the upper detection position, the upper nipping roller is moved to the fourth output opposite to the third output direction. an upper motor control unit that rotates in the direction to move the upper sheet to the other side;
a lower support portion that supports the lower sheet from below;
a lower nipping roller that protrudes upward from the lower support portion on the upstream side in the transport direction with respect to the nozzle, is rotatable about the transport direction as an axial direction, and sandwiches the lower sheet between itself and the support member;
a lower nipping motor that rotationally drives the lower nipping roller;
By controlling the driving of the lower nipping motor, when the lower detection unit detects that the lower specific end portion is at the lower detection position, the lower nipping roller is rotationally driven in the first output direction, and the When the lower sheet is moved to the other side and the lower detection unit detects that the specific lower edge is not present at the lower detection position, the lower nipping roller is moved to the second output direction opposite to the first output direction. a lower motor control unit that rotates in the direction to move the lower sheet to the one side;
with
Furthermore,
The detection unit has a reflection unit provided on the side opposite to the light emission unit with respect to the detection position and reflecting the light emitted by the light emission unit toward the light reception unit,
The injection port is capable of injecting air toward the reflecting portion,
In addition,
a movement mechanism capable of moving the support member between an operating position located upstream of the nozzle in the transport direction and a retracted position located on the one side of the specific direction with respect to the operating position;
a movement switch that receives an instruction to drive the movement mechanism;
When the movement switch receives an instruction to stop the driving of the transport mechanism and the supply mechanism by the ejection transport control unit, driving of the moving mechanism is controlled to move the support member from the operating position to the retracted position. and a movement control unit that
with
The reflecting portion is provided on the lower surface of the supporting member,
The injection port is provided so as to be able to inject air toward the reflecting portion when the support member is at the retracted position,
The air control unit jets air after the support member moves from the operating position to the retracted position when the movement switch receives an instruction.
A gluing device characterized by: a nozzle provided on the upper side of the lower sheet and having a discharge port for discharging the adhesive;
a supply mechanism that supplies the adhesive to the nozzle;
Conveyance in which the lower sheet to which the adhesive is adhered and the upper sheet overlapping the lower sheet from above are sandwiched in the vertical direction and conveyed in the conveying direction downstream of the nozzle in the conveying direction of the lower sheet. a mechanism;
A discharge/conveyance control unit that controls driving of the conveying mechanism and the supply mechanism, discharges the adhesive from the discharge port, and conveys the lower sheet and the upper sheet while being pressed against each other via the adhesive. When
In a bonding device comprising
A light emitting unit that emits light toward a detection position that is a predetermined position upstream in the transport direction from the transport mechanism, and a light receiving unit that can receive the light emitted by the light emitting unit, and the light receiving unit receives the light. a detection unit that detects whether or not the lower sheet and the upper sheet are present at the detection position based on the amount of light;
an injection port connected to a circulation pipe through which air flows and capable of injecting air toward the detection unit;
an air control unit that controls injection of air from the injection port;
with
The air control unit injects air from the injection port while the ejection transport control unit stops driving the transport mechanism and the supply mechanism,
and,
The transport mechanism is
a lower conveying roller downstream of the nozzle in the conveying direction, rotatable about an axial direction perpendicular to the conveying direction and the vertical direction, and contacting the lower sheet from below;
an upper conveying roller that is rotatable about the axial direction and sandwiches the lower sheet and the upper sheet from above with the lower conveying roller;
An upper conveying arm movably supporting the upper conveying roller between a contact position where the lower sheet and the upper sheet are sandwiched between the lower conveying roller and an upper position above the contact position. When,
an upper drive unit connected to the upper transport arm and configured to move the upper transport roller between the contact position and the upper position via the upper transport arm;
an upper drive control unit for controlling the upper drive unit to move the upper transport roller from the contact position to the upper position when the discharge transport control unit stops driving the transport mechanism and the supply mechanism;
with
The air control section jets air when the upper drive control section moves the upper conveying roller from the contact position to the upper position.
A gluing device characterized by: an end detection unit for detecting whether or not at least one of the upper sheet and the lower sheet conveyed by the conveying mechanism is present at an end detecting position, which is a predetermined position on the upstream side of the conveying direction of the conveying mechanism;
When the end detection unit detects that the upper sheet and the lower sheet are not present at the end detection position when the transport mechanism and the supply mechanism are driven by the ejection transport control unit, the air control unit performs a predetermined 8. The bonding apparatus according to any one of claims 1 to 7 , wherein the air is jetted after a waiting time of . 9. The bonding apparatus according to any one of claims 1 to 8 , further comprising an adjustment section provided in said circulation pipe for adjusting the injection amount of said air from said injection port. a setting unit for setting an injection period of the air to be injected from the injection port by the air control unit;
10. The bonding apparatus according to any one of claims 1 to 9 , wherein the air control section performs control such that the air is jetted from the jetting port during the jetting period set by the setting section. 11. The bonding apparatus according to any one of claims 1 to 10 , further comprising a pipe supporting portion that supports the flow pipe and can change the opening direction of the injection port. 12. The bonding apparatus according to claim 11 , wherein the pipe support portion supports the circulation pipe so as to be movable in the conveying direction. a light amount calculation unit that calculates the amount of light received by the light receiving unit;
A light amount determination unit that determines whether the light amount calculated by the light amount calculation unit is equal to or greater than a predetermined value,
The light amount determination unit determines whether the light amount is equal to or greater than a predetermined value before the air control unit injects the air,
The bonding apparatus according to any one of claims 1 to 12 , wherein the air control section jets the air when the light amount determination section determines that the light amount is less than a predetermined value. a re-determination unit that determines whether the light amount calculated by the light amount calculation unit is equal to or greater than a predetermined value after the air is injected by the air control unit;
The air control unit injects the air when the re-determination unit determines that the amount of light is less than a predetermined value,
An error determination unit that determines whether the light amount calculated by the light amount calculation unit is equal to or greater than a predetermined value after the re-determination unit determines that the light amount is less than a predetermined value and the air is injected by the air control unit. When,
14. The bonding apparatus according to claim 13 , further comprising a reporting section that reports an error when the error determining section determines that the amount of light is less than a predetermined value.

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