JP2012213874A - Conveying device of blank sheets - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveying device of blank sheets capable of conveying the blank sheets in various shapes.SOLUTION: Four or more belts, in either or both of first supply belts 18 and second supply belts 26, are arranged in parallel in a direction orthogonal to a conveyance direction of upper side blank sheets 12a, 12b, and a lower side blank sheet 10. The driving timing of the respective supply belts 18, 26, four or more of which are provided, is controlled based on preset information according to the shapes of the blank sheets 10, 12a, 12b to be conveyed.

Description

  The present invention relates to a blank sheet conveying apparatus that conveys a vertically stacked blank sheet while applying pressure in the vertical direction.

  Conventionally, as a blank sheet conveyance device that conveys a vertically stacked blank sheet while applying pressure in the vertical direction, a pair of pressing belts that convey the vertically stacked blank sheet while applying pressure in the vertical direction, and There is known a press belt including a supply belt, a transport belt, and a feed belt that transport the upper blank sheet and the lower blank sheet one by one (see Patent Document 1).

  On the other hand, in recent years, for example, as shown in FIG. 5, two upper blank sheets 12 and 12 and one lower blank sheet 10 are overlapped, or left and right are unbalanced, and a large number of irregularities are formed on the edges. There is a demand for blank sheets of various shapes, such as those that exist.

JP 2008-23895 A

  However, in the blank sheet conveying apparatus described in Patent Document 1, the upper supply belt that conveys the upper blank sheet while pushing it with a nail, and the lower supply belt that conveys the lower blank sheet while pushing it with a nail, Since only one set each is provided, for example, the two upper blank sheets 12 and 12 as shown in FIG. 5 are transported, or the left and right are unbalanced, and there are many unevennesses at the edges. There is a problem that the sheet cannot be conveyed.

  Then, an object of this invention is to provide the conveyance apparatus of the blank sheet which can convey the blank sheet of various shapes.

  In order to achieve the above object, a blank sheet conveying apparatus according to the present invention conveys a pair of upper and lower blank sheets, which are vertically aligned and at least one part of which is stacked vertically, while applying pressure in the vertical direction. The first belt is provided with a claw protruding on the surface and provided with a gap in the conveying direction at an appropriate interval, and the lower blank sheet is conveyed while being pushed by the claw and is supplied to the proximal end between the pressing belts. A belt and a second supply belt provided with a nail protruding on the surface at an appropriate interval in the conveyance direction, conveying the upper blank sheet while pressing the upper blank sheet with the nail, and supplying it to the base end between the pressure belts; An adhesive applying means for applying an adhesive to at least a part of the overlapped portion of either one of the upper and lower blank sheets before being supplied to the pressing belt; A blank sheet conveying device configured to supply the first blanket sheet and the second blanket belt to a base end between the pressing belts in synchronization with each other. At least one of the first supply belt and the second supply belt is provided in parallel in a direction orthogonal to the conveying direction of the upper and lower blank sheets, and the four or more are provided. Each of the supply belts is characterized in that the drive timing is controlled based on information preset in accordance with the shape of the blank sheet to be conveyed.

  Thus, the blank sheet conveying apparatus according to the present invention is provided with at least four of the first supply belt and the second supply belt that deliver the upper and lower blank sheets, and the four Since the driving timing is controlled based on information set in advance according to the shape of the blank sheet conveyed by each of the above supply belts, two or more upper and / or lower blank sheets are supplied. In addition, it is possible to move the nail according to the shape of the blank sheet. For example, as shown in FIG. 5, a blank sheet composed of two upper blank sheets and one lower blank sheet, and left and right are unbalanced. Thus, various shapes of blank sheets such as a blank sheet having a large number of irregularities at the edges can be conveyed.

  In the blank sheet conveying apparatus according to the present invention, among the four or more belts provided, at least one of the supply belts is orthogonal to the conveyance direction so that the distance between the other supply belts is displaced. It is preferable to be configured to be movable in the direction. As described above, since the at least one supply belt is configured to be movable in a direction orthogonal to the conveyance direction of the blank sheet, the position of the supply belt is appropriately adjusted according to the shape and size of the conveyed blank sheet. It can be adjusted, so that more types of blank sheets can be conveyed.

  In the blank sheet conveying apparatus according to the present invention, a position detecting means for detecting at least one position of the lower blank sheet conveyed by the first supply belt and the upper blank sheet conveyed by the second supply belt. And a supply belt that conveys at least a blank sheet other than the blank sheet whose position is detected by the position detection unit is driven by a servo motor, and is supplied by the servo motor. It is preferable that the timing of supplying the blank sheet by the belt to the pressing belt is adjusted by driving the servo motor. Thus, by controlling the drive of the supply belt by the drive of the servo motor, the lower and upper blank sheets can be easily synchronized and supplied to the pressing belt.

  As described above, according to the blank sheet conveyance device of the present invention, it is possible to provide a blank sheet conveyance device capable of conveying various shapes of blank sheets.

It is a top view which shows schematic structure of the conveying apparatus which concerns on 1st Embodiment of this invention. It is sectional drawing which shows schematic structure along the AA 'line of FIG. It is sectional drawing which shows schematic structure along the BB 'line | wire of FIG. It is a partial enlarged plan view which expands and shows the schematic structure of the 2nd supply belt moving mechanism of the conveying apparatus which concerns on 1st Embodiment. FIG. 4B is a partially enlarged plan view showing a state where the second supply belt is moved from the state of FIG. 4A. It is a top view which shows an example of the upper side and lower side blank sheet conveyed by the conveying apparatus which concerns on 1st Embodiment.

  Next, a blank sheet conveying apparatus according to a first embodiment of the present invention will be described with reference to the drawings. The blank sheet conveying apparatus 1 according to the first embodiment conveys one lower blank sheet 10 and two upper blank sheets 12a and 12b stacked on the lower blank sheet 10, and as shown in FIG. It is composed of four transport units 2a to 2d provided in parallel in a direction (left and right direction in FIG. 1) perpendicular to the transport direction of the blank sheet. Hereinafter, the transport unit 2a located on the leftmost side in FIG. 1 is referred to as a first transport unit 2a, and the transport unit 2b adjacent thereto is referred to as a second transport unit 2b, a third transport unit 2c, and a fourth transport unit 2d.

  As shown in FIGS. 1 to 3, the first to fourth transport units 2 a to 2 d respectively transport a pair of pressing belts 14 and 16 aligned vertically and a lower blank sheet 10 to press the pressing belt 14. , 16, a first supply belt 18 that is supplied to the base end, a pair of first transport belts 20 and 22 that transport the lower blank sheet 10 to the base end of the first supply belt 18, and a stacked lower side The first feeding belt 24 that sends the blank sheet 10 to the base end side between the pair of first conveying belts 20 and 22 and the upper blank sheets 12a and 12b are placed on the upper surface, and the pair of pressing belts 14 and 16 are placed. A guide member 25 that is guided to the proximal end between the second blanket belt 26, and a second supply belt 26 that conveys the upper blank sheets 12 a and 12 b placed on the guide member 25 and supplies them to the proximal end between the pressing belts 14 and 16. The second A pair of second conveying belts 28 and 30 that convey the upper blank sheets 12a and 12b to the base end of the supply belt 26, and a stack of the upper blank sheets 12a and 12b between the pair of second conveying belts 28 and 30. A second delivery belt 32 for delivery to the end side.

  The pressure belts 14 and 16 of the first to fourth transport units 2a to 2d, the first supply belts 18, the first transport belts 20 and 22, the first delivery belts 24, and the second transport belts 28 and 30. And each second delivery belt 32, and each second supply belt 26 and each guide member 25 of the first and fourth transport units 2a and 2d are fixed to four base frames (not shown) of the transport device. 4a to 4b are attached respectively. The fixed frames 4a to 4b are formed in a plate shape extending in the conveyance direction of the blank sheet (in the direction from the top to the bottom in FIG. 1) and standing upright to the upper surface of each belt. They are provided in parallel in a direction perpendicular to the sheet conveying direction and parallel to the upper surface of each belt. On the other hand, the second supply belts 26 and the guide members 25 of the second and third transport units 2b and 2c are orthogonal to the blank sheet transport direction with respect to the fixed frames 4b and 4c and parallel to the upper surfaces of the belts. Are attached to movable frames 62a and 62b, which will be described later.

  Each of the pressing belts 14 and 16 includes one lower blank sheet 10 supplied by each first supply belt 18 of the first to fourth transport units 2a to 2d, and each of the first and second transport units 2a and 2b. At least one copy of the first upper blank sheet 12a supplied by the second supply belt 26 and the second upper blank sheet 12b supplied by the second supply belt 26 of the third and fourth transport units 2c, 2d. Are conveyed while applying pressure in the up-down direction in a state of being stacked in the up-down direction. Each of the pressing belts 14 and 16 is configured to be driven by a servo motor 47 (a servo motor for driving the lower pressing belt 14 is not shown).

  As shown in FIGS. 2 and 3, claws 19 and 27 protrude from the surfaces of the first supply belt 18 and the second supply belt 26 at appropriate intervals in the transport direction. Each claw 19 of the supply belt 18 has a longer interval than the length in the conveyance direction of the blank sheet 10 to be conveyed, and each claw 27 of the second supply belt 26 is in the conveyance direction of the blank sheets 12a and 12b to be conveyed. The interval is longer than the length of.

  Each guide member 25 is provided with a distal end inclined downward toward a proximal end between the pair of pressing belts 14 and 16, and a guide member main body 21 constituting the proximal end side and a distal end side. The guide member main body 21 is provided with a moving member 23 movably provided by known means. By configuring the moving member 23 to be movable with respect to the guide member main body 21 in this way, it can be expanded and contracted so that the distance between the distal end and the proximal end between the pressing belts 14 and 16 is displaced. The position of the tip of the guide member 25 can be adjusted according to the length of the blank sheets 12a and 12b in the conveyance direction. For example, when the front end of the upper blank sheet 12a, 12b reaches the base end between the pair of pressing belts 14, 16, the base end of the guide member 25 is positioned at the front end of the guide member 25. By adjusting, when the leading ends of the upper blank sheets 12 a and 12 b reach the proximal end between the pair of pressing belts 14 and 16, the proximal ends of the upper blank sheets 12 a and 12 b fall away from the leading end of the guide member 25. The claw 27 of the second supply belt 26 can be prevented from scratching and scratching the base ends of the upper blank sheets 12a and 12b. The second supply belt 26 is installed above the guide member 25.

  Above the first supply belt 18 of the second transport unit 2b, as shown in FIG. 3, a first sensor 34 that detects the claw 19 on the first supply belt 18 and an upper blank sheet of the lower blank sheet 10 A hot melt dropping section 36 for dropping hot melt is provided at a predetermined position of the portion overlapped with 12a. A second sensor 38 that detects the claw 27 on the second supply belt 26 is installed above the second supply belt 26 of the second transport unit 2b.

  Above the first supply belt (not shown) of the third transport unit 2c, a hot melt dropping unit 36 for dropping hot melt is installed at a predetermined position of a portion of the lower blank sheet 10 that is overlapped with the upper blank sheet 12b. (See FIG. 1). A second sensor 38 that detects the claw 27 on the second supply belt 26 is installed above the second supply belt 26 of the third transport unit 2c.

  The first supply belt 18 and the second supply belt 26 are each configured to be driven by a servo motor 48 (a servo motor for driving the first supply belt 18 is not shown). Further, the upper surface of each first supply belt 18 is provided at a position lower than the upper surfaces of the lower conveyance belt 22 and the lower pressing belt 14, and at the tip of each first supply belt 18, Each of the push-up members 42 is provided with a slope 43 that extends from the position of the upper surface of the first supply belt 18 to the position of the upper surface of the lower pressure belt 14, and is displaced in the width direction with respect to the first supply belt 18. The push-up members 42 push up the base end of the lower blank sheet 10 being conveyed to a position higher than the claws 19 of the first supply belts 18, so that the gap between the pair of press belts 14 and 16 is increased. Supplied to the proximal end.

  Among the first to fourth transport units 2a to 2d, the second supply belts 26 of the second and third transport units 2b and 2c located inside are blanked by the second supply belt moving mechanisms 60a and 60b, respectively. It is configured to be movable in a direction perpendicular to the conveying direction and parallel to the upper surface of the second supply belt 26. The second supply belt moving mechanisms 60a and 60b can employ various known configurations. For example, as shown in FIGS. 1, 3, 4A, and 4B, the second supply belt moving mechanisms 60a and 60b extend in the conveyance direction of the blank sheet. The plate-like moving frames 62 and 62 erected perpendicularly to the upper surface of the second supply belt 26, and the moving frames 62 and 62 are orthogonal to the blank sheet conveyance direction and parallel to the upper surface of the second supply belt 26. It is possible to use one provided with supports 61 and 61 that are movably supported. Hereinafter, since the second supply belt moving mechanism 60b of the third conveyance unit 2c has the same configuration as the second supply belt movement mechanism 60a of the second conveyance unit 2b, the description thereof will be omitted and the second conveyance belt 2b of the second conveyance unit 2b will be omitted. Only the second supply belt moving mechanism 60a will be described.

  The support body 61 is formed in a frame shape having four sides, and is fixed to, for example, the fixed frame 4 c so as to be positioned above the moving frame 62. A pair of rails 68a and 68b extending in the same direction are provided on the lower surfaces of the pair of sides extending in the direction perpendicular to the conveyance direction of the blank sheet of the support 61 and parallel to the upper surface of the second supply belt 26, respectively. Yes. The pair of rails 68a and 68b are formed in an I-shaped cross section. In addition, through holes 78 and 78 through which the bolts 74 can be passed are provided at appropriate intervals along the rails 68a and 68b on the inner side of the pair of rails 68a and 68b on which the rails 68a and 68b of the support 61 are provided. Two are formed.

  A second supply belt 26 and a pair of pulleys 49a and 49b over which the second supply belt 26 is stretched are attached to one side surface of the moving frame 62, respectively. A servo motor 48 for rotating one pulley 49a of the pair of pulleys 49a and 49b is attached. On the upper surface of the moving frame 62, there are provided a pair of slide portions 70a, 70b having a substantially U-shaped cross section that opens upward so as to be slidably engaged with the rails 68a, 68b. Further, nut members 76a and 76b having screw holes into which the bolts 74 can be screwed are provided on the inner side of the slide portions 70a and 70b of the moving frame 62. In the nut members 76a and 76b, the screw holes are Two are formed along the rails 68a and 68b at positions that can be aligned with the through holes 78 and 78 of the support 61, respectively.

  The second supply belt moving mechanism 60a configured in this way presses the moving frame 62 in a direction perpendicular to the blank sheet conveyance direction and parallel to the upper surface of the second supply belt 26 with the bolt 74 removed. For example, the moving frame 62 can be moved along the rails 68a and 68b via the slide members 70a and 70b from the position shown in FIG. 4A to the position shown in FIG. 4B. Further, the second supply belt moving mechanism 60a moves the moving frame 62 and then screws the bolts 74 and 74 into the screw holes of the nut members 76a and 76b through the through holes 78 and 78 of the support 61. Thus, the moving frame 62 can be positioned (fixed). Here, the configuration of the second supply belt moving mechanism is not limited to the above configuration, and may be, for example, a ball screw mechanism using a servo motor or the like.

  As shown in FIGS. 1 to 3, each first delivery belt 24 is provided with a first shutter 44 for suppressing the stacked lower blank sheets 10, and the lower end of the first shutter 44 and the first delivery are provided. Between the belts 24, there is a gap through which the lower blank sheet 10 can pass one by one. Each of the second delivery belts 32 is provided with a second shutter 46 for suppressing the stacked upper blank sheets 12a and 12b, and an upper blank is provided between the lower end of the second shutter 46 and the second delivery belt 32. There is a gap through which the sheets 12a and 12b can pass one by one. Each of the first delivery belt 24 and the second delivery belt 32 is detected when the claw 19 of the first supply belt 18 and the claw 27 of the second supply belt 26 are detected by the first sensor 34 and the second sensors 38, 38. The lower blank sheet 10 and the upper blank sheets 12a and 12b are sent out from the first and second shutters 44 and 46 one by one, respectively.

  Each of the first delivery belt 24 and the second delivery belt 32 is configured to be driven by a servo motor 50 (a servo motor for driving the first delivery belt 24 is not shown). Each of the first conveyor belts 20 and 22 and the second conveyor belts 28 and 30 is respectively connected to a servo motor 51 (the servo motor for driving the lower second conveyor belt 30 and the first conveyor belts 20 and 22 is not shown. Z)).

  Next, the operation of the transport apparatus according to this embodiment will be described. As a premise, for example, by inputting the size and shape of the lower blank sheet 10 and the two upper blank sheets 12a and 12b, each claw 19 of each first supply belt 18 and each claw 27 of each second supply belt 26 are provided. The operation timing of each of the first supply belts 18 and each of the second supply belts 26 is set so as to press the base ends of the lower blank sheet 10 and the two upper blank sheets 12a and 12b. Further, for example, by inputting the length of the upper blank sheet 12a, 12b in the conveying direction, the position of the tip of each guide member 25 is set between the pair of pressing belts 14, 16 at the tip of the upper blank sheet 12a, 12b. When the base end is reached, the base end is adjusted so as to be positioned at the front end of the guide member 25.

  First, the pressing belts 14 and 16 of the first to fourth transport units 2a to 2d, the first and second supply belts 18 and 26, and the first and second transport belts 20, 22, 28, and 38 have the same speed. Start driving. Next, when the claw 19 of the first supply belt 18 of the second transport unit 2b is detected by the first sensor 34, the first delivery belts 24 of the first to fourth transport units 2a to 2d are operated, The lower blank sheet 10 is sent out from the gap of the first shutter 44 one by one toward the first conveying belts 20 and 22. In parallel with this, when the claw 27 of the second supply belt 26 of the second transport unit 2b is detected by the second sensor 38 of the second transport unit 2b, each of the first and second transport units 2a and 2b is detected. The second delivery belt 32 is operated, and one upper blank sheet 12a is moved from the gap of the second shutter 44 one by one toward the second conveyance belts 28, 30 of the first and second conveyance units 2a, 2b. Send it out. Furthermore, in parallel with these, when the claw 27 of the second supply belt 26 of the third transport unit 2c is detected by the second sensor 38 of the third transport unit 2c, the third and fourth transport units 2c, 2d Each second delivery belt 32 is operated, and the other upper blank sheet 12b is placed one by one toward the second conveyance belts 28 and 30 of the third and fourth conveyance units 2c and 2d. To send out.

  Next, the lower and upper blank sheets 10, 12 a and 12 b are conveyed to the first supply belt 18 and the second supply belt 26 by the first conveyance belts 20 and 22 and the second conveyance belts 28 and 30, respectively. Each first supply belt 18 and each second supply belt 26 convey the lower and upper blank sheets 10, 12 a, 12 b while pushing the claws 19, 27, respectively. When the first sensor 34 detects the claw 19 of the first supply belt 18 of the second transport unit 2b, a signal is transmitted to a control unit (not shown) and the hot melt dripping unit 36 is activated to bring the hot melt to a predetermined position. The melt is dripped. Further, when the second sensor 38 detects the claw 27 of each of the second supply belts 26 of the second and third transport units 2b and 2c, a signal is transmitted to a control unit (not shown). The control unit controls the driving of each servo motor 48 that drives each first supply belt 18 and each second supply belt 26 based on the signals received from the first sensor 34 and the second sensors 38 and 38, respectively. The lower blank sheet 10 and the upper blank sheets 12a and 12b are supplied to the pressing belts 14 and 16 at a predetermined timing. When the lower blank sheet 10 is supplied to the pressing belts 14 and 16, the base end of the lower blank sheet 10 being conveyed is pushed up to a position higher than the claw 19 of the first supply belt 18 by the lifting member 42. In this state, the leading end is pulled by the pressing belts 14 and 16 and supplied between them. When the leading ends of the upper blank sheets 12 a and 12 b reach the proximal end between the pair of pressing belts 14 and 16, the proximal ends of the upper blank sheets 12 a and 12 b fall away from the distal ends of the respective guide members 25. In this state, the tip is pulled by the pressing belts 14 and 16 and supplied between them.

  As described above, in the conveyance device 1 according to this embodiment, the first supply belt 18 and the second supply belt 26 that deliver the upper and lower blank sheets 10, 12 a, and 12 b are orthogonal to the conveyance direction of the blank sheet. Four driving timings are provided for each of the first and second supply belts 18 and 26 based on information preset in accordance with the shapes of the upper and lower blank sheets 10, 12 a, and 12 b, respectively. Therefore, it is possible to supply two upper blank sheets 12a and 12b and one lower blank sheet 10, and to move the claws according to the shape of the blank sheet, for example, as shown in FIG. Blank sheet consisting of two upper blank sheets 12a, 12b and one lower blank sheet 10, and left and right are unbalanced, Such blank sheets, such as the number of irregularities are present, it is possible to convey the blank sheet of various shapes.

  Further, the transport apparatus 1 according to the present embodiment is configured such that the second supply belts 26 of the second and third transport units 2b and 2c are movable in a direction perpendicular to the transport direction of the blank sheet and parallel to each belt. As a result, the positions of the second supply belts 26 of the second and third transport units 2b and 2c can be appropriately adjusted according to the shape and size of the upper blank sheets 12a and 12b to be transported. Thus, it is possible to deal with more types of blank sheets. In addition, each second supply belt 26 of the second and third transport units 2b and 2c can be moved relative to the hot melt dripping portion 36 in a direction perpendicular to the transport direction and parallel to each belt. The positions of the second supply belts 26 of the second and third transport units 2b and 2c and the positions of the hot melt dripping portions 36 are appropriately adjusted according to the shape and size of the upper blank sheets 12a and 12b to be transported. can do.

  The blank sheet conveying apparatus according to the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the technical idea of the present invention. For example, although the transport apparatus 1 according to the present embodiment is configured by the four transport units 2a to 2d, the present invention is not limited thereto, and may be configured by five or more transport units. Further, in the transport device 1 according to this embodiment, the pressing belts 14 and 16, the first and second supply belts 18 and 26, the guide member 25, the first and second transport belts 20, 22, 28, and 30 and the first. The four feeding belts 24 and 32 are provided in a direction perpendicular to the conveyance direction of the blank sheet and parallel to each belt, but the present invention is not limited to this, and the first feeding belt and the second feeding belt are not limited thereto. It is sufficient that at least one of the four is provided in a direction orthogonal to the conveyance direction of the blank sheet and parallel to each belt.

  Further, in the transport device 1 according to the present embodiment, the second supply belts 26 of the second and third transport units 2b and 2c are configured to be movable in a direction orthogonal to the transport direction of the blank sheet and parallel to the belts. However, the present invention is not limited to this, and may be attached to the fixed frames 4b and 4c. Further, the first supply belts 18 of the second and third transport units 2b and 2c may be configured to be movable in a direction perpendicular to the transport direction of the blank sheet and parallel to the respective belts. The entire transport units 2b and 2c may be configured to be movable in a direction orthogonal to the transport direction of the blank sheet and parallel to each belt, or all of the first to fourth transport units 2a to 2d may be configured to transport the blank sheet. It may be configured to be movable in a direction perpendicular to each other and parallel to each belt.

  Furthermore, in the transport apparatus according to the present embodiment, the first sensor 34 is provided only in the second transport unit 2b, and the second sensors 38 and 38 are provided only in the second and third transport units 2b and 2c. However, it is not limited to this, It can change suitably according to the blank sheet to convey. For example, when there is only one upper blank sheet to be transported, the second sensor may be provided in any of the first to fourth transport units, and the lower blank sheet to be transported is 2 If it is one, it should just be provided in any one of a 1st and 2nd conveyance unit and any one of a 3rd and 4th conveyance unit.

  Furthermore, in the transport apparatus according to the present embodiment, the first to fourth transport units 2a to 2d transport one lower blank sheet 10, and the first and second transport units 2a and 2b, and the third and third transport units. Although the two upper blank sheets 12a and 12b are transported by the four transport units 2c and 2d, the present invention is not limited to this, and the format can be appropriately changed according to the blank sheet to be transported. For example, when one upper blank sheet is stacked on one lower blank sheet, one lower blank sheet and one upper blank sheet may be transported by the first to fourth transport units 2a to 2d. Further, for example, when one small upper blank sheet is stacked on one large lower blank sheet, the first and fourth transport units 2a to 2d transport one lower blank sheet, and the second and second The upper blank sheet may be transported only by the three transport units 2b and 2c, and in this case, the first and fourth transport units 2a, It can be controlled not to operate each 2d second supply belt 26, each second transport belt 28, 30 and each second delivery belt 32.

DESCRIPTION OF SYMBOLS 1 Conveying device 10 Lower blank sheet 12a, 12b Upper blank sheet 14, 16 Press belt 18 First supply belt 19, 27 Claw 26 Second supply belt 36 Hot melt dripping part (adhesive application means)

Claims (2)

A pair of pressing belts that conveys the upper and lower blank sheets, which are aligned vertically and at least a part of which are stacked vertically, while applying pressure in the vertical direction;
Claws projecting on the surface are provided at appropriate intervals in the conveying direction, and a first supply belt that conveys the lower blank sheet while pressing the lower blank sheet with the claw and supplies it to the base end between the pressing belts;
Claws protruding on the surface are provided at appropriate intervals in the conveyance direction, and a second supply belt that conveys the upper blank sheet while pressing the upper blank sheet with the claws and supplies the second supply belt to the proximal end between the pressure belts;
An adhesive application means for applying an adhesive to at least a part of the overlapped portion of either one of the upper and lower blank sheets before being supplied to the pressing belt;
The first supply belt and the second supply belt are blank sheet conveying devices configured to synchronize and supply the lower blank sheet and the upper blank sheet to a base end between the pressing belts. ,
At least one of the first supply belt and the second supply belt is provided in parallel with four or more in a direction orthogonal to the conveying direction of the upper and lower blank sheets,
Each of the four or more supply belts provided is controlled in driving timing based on information set in advance according to the shape of the blank sheet to be conveyed. Of the four or more belts provided, at least one supply belt is configured to be movable in a direction perpendicular to the conveying direction so that a distance between the other supply belts is displaced. The blank sheet conveying apparatus according to claim 1, characterized in that:

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