JP6514967B2 - Web cutting device and web connecting device using the same - Google Patents

Description

  The present invention relates to a web cutting device and a web connecting device using the same.

  Conventionally, the connecting device for connecting the new web to the old web firstly superposes the old web and the new web, secondly holds the front and rear of the planned cutting position with the web holder, and thirdly the new and old webs At the cutting point, cut simultaneously with a cutter, fourthly remove the unnecessary portions of both the old and new webs while suction-holding the rear end of the old web and the front end of the new web with the suction surface of the web holder The top surface of the rear end of the old web and the front end of the new web are suctioned and held by the suction surface of the web holder, and are pasted with tape.

Unexamined-Japanese-Patent No. 5-246589 JP 2005-15145 A

  In the web connecting apparatus as described above, when connecting the old web and the new web, it is necessary to stack the old web and the new web and cut them with a cutter. However, at the time of this cutting, dust is generated from the cut end of the web and there is a problem that it adheres to the surface of the web.

  Therefore, in view of the above problems, the present invention has an object to provide a web cutting device in which dust generated when the web is cut does not adhere to the surface of the web, and a connecting device using the same.

The present invention is an apparatus for cutting a web in which the upper web and the lower web are vertically stacked and cut in the width direction, the upper securing means and the lower securing means for sandwiching and fixing the upper web and the lower web vertically. An upper moving groove portion provided along the width direction of the lower surface of the upper fixing means, a lower moving groove portion provided along the width direction of the upper surface of the lower fixing means, and a width inside the lower moving groove portion Cutter moving in the direction, a dust suction part provided in one of the width direction of the upper moving groove and the lower moving groove, and a cutter moving provided below the lower moving groove and moving the cutter in the width direction Means, a partition sheet provided between the lower moving groove portion and the cutter moving unit, and a passing slit provided in the width direction of the partition sheet for moving the cutter, the upper fixing unit And the lower fixed hand Forming a cylindrical cutting space surrounded by the upper moving groove portion and the lower moving groove portion, sandwiching the upper web and the lower web in an overlapping state, and the dust suction portion is configured to cut the cutting space The apparatus is a web cutting apparatus characterized in that the upper web and the lower web are simultaneously cut by moving the cutter in the width direction and simultaneously sucking the air inside.

  According to the present invention, the upper web and the lower web are cut in a state of being piled up and down, and the dust generated from the cut end when it is cut is sucked by the dust suction portion without being diffused, so the surface of the web Does not stick to

It is a general view of the initial state of the connecting device which shows one Embodiment of this invention. It is an external view of the connection apparatus of a 10th process. It is a longitudinal cross-sectional view which shows the structure of a connection apparatus. It is an AA line cross section in FIG. It is a top view of a lower mobile. It is explanatory drawing of the connection apparatus in a 1st process. It is explanatory drawing of the connection apparatus in a 2nd process. It is explanatory drawing of the connection apparatus in a 3rd process. It is explanatory drawing of the connection apparatus in a 4th process. It is explanatory drawing of the connection apparatus in a 5th process. It is explanatory drawing of the connection apparatus in a 6th process. It is explanatory drawing of the connection apparatus in a 7th process. It is explanatory drawing of the connection apparatus in a 8th process. It is explanatory drawing of the connection apparatus in a 9th process. It is explanatory drawing of the connection apparatus in a 10th process. It is an enlarged side view in the state which is going to cut an old web and a new web with a cutting device. It is a partially omitted front view in the state which is going to cut an old web and a new web with a cutting device. It is explanatory drawing of an upper joining suction part, an old web suction part, an upper tape temporary suction part, a lower tape temporary suction part, a lower front suction part, a lower back suction part, and a dust suction part. It is a general view of a suction device and a negative pressure device. It is a block diagram of a connection device. It is a flowchart of a suction device.

  Hereinafter, the connection apparatus 10 of the web W of one Embodiment of this invention is demonstrated based on FIGS. The connection device 10 uses a suction device 100, a cutting device 46, and a negative pressure device 150. The “web W” is a long sheet and refers to a fabric, paper, film, metal foil or the like. In addition, in the connection apparatus 10, "the carrying-in side" means the upstream into which the web W is conveyed, and "the unloading side" means the downstream to which the web W is conveyed.

  The connecting device 10 has less old web W1 wound around the old core 1 as shown in FIG. 1 and therefore connects the new web W2 wound around the new core 2 after the old web W1.

  The old web W1 and the new web W2 are transported along the transport path in the horizontal direction as shown in FIG. 1 and FIG. As shown in FIG. 1, the old web W1 passes through the guide roll 3, passes through the loading roll 4, passes through the connecting device 10, passes through the unloading roll 5, passes through the guide roll 6, and is guided to a coating device or the like. Ru. On the other hand, the new web W2 wound around the new core 2 passes the guide roll 7 and passes above the pressure roll 8 provided below the carry-in roll 4, and its tip is fixed to the connecting device 10 ing.

  Also, a pressure roll 9 is disposed below the carry-out roll 5. As shown in FIG. 3, the pressing roll 8 and the pressing roll 9 are vertically moved by the pressing actuators 72 and 74, respectively. The pressing roll 8 and the pressing roll 9 respectively have a brake function, hold the tension of the web W between the pressing roll 8 and the pressing roll 9 by both nips, and block the tension fluctuation received from the upstream and the downstream.

(1) Structure of Connection Device 10 The structure of the connection device 10 will be described based on FIGS. 3 to 5. The connecting device 10 is composed of an upper moving body 12 and a lower moving body 14.

(1-1) Upper moving body 12
First, the upper moving body 12 will be described based on FIGS. 3 and 4. The upper moving body 12 is disposed above the old web W1 and is disposed movably in the horizontal direction. A main body (hereinafter referred to as “upper main body”) 16 of the upper moving body 12 is constituted by an old web winding body 18, an upper tape sticking body 20, and an upper joining suction portion 22 from the loading side. The upper main body 16 having the old web winding body 18, the upper tape sticking body 20, and the upper joint suction portion 22 is disposed between the pair of upper rails 36, 36, and the upper actuator 38 Move horizontally along 36, 36.

  The old web winding body 18 is formed in a cylindrical shape, and rotates along the transport direction of the old web W1 by the rotating shaft 24. A suction surface 27 of the old web suction portion 26 is formed on a part of the outer peripheral surface of the old web winding member 18, and an upper moving groove 28 through which the cutter 58 passes is formed at an end of the old web suction portion 26. That is, the suction surface 27 of the old web suction portion 26 is formed in the vicinity of the upstream side of the upper moving groove portion 28 provided in the width direction of the old web winding member 18. A plurality of suction holes are opened in the suction surface 27. As shown in FIG. 4, pinion gears 76, 76 are provided on both sides of the rotating shaft 24 of the old web winding body 18, and the pinion gears 76, 76 are linear provided on both sides of the upper moving body 12 and It is screwed and rotated with racks 78, 78 arranged horizontally. The rack 78 is supported by a frame 86 for fixing the connection device 10. The upper rails 36 and 36, the upper actuator 38, and the lower rails 68 and 68 and the lower actuator 70, which will be described later, are also fixed to the frame 86. Thus, when the upper moving body 12 moves, the pinion gears 76 76 rotate on the rack 78, and the old web winding body 18 also rotates.

  The upper tape adhesive body 20 is formed in a cylindrical shape, and is rotated by the rotation shaft 30 along the transport direction of the old web W1. An upper tape temporary suction portion 32 is provided on a part of the outer peripheral surface of the upper tape sticking body 20, and a plurality of suction holes are opened in the suction surface 35 of the upper tape temporary suction portion 32. The adhesive surface is suctioned and temporarily fixed. As shown in FIG. 4, a wheel 80 is provided on one side of the rotation shafts 24 and 24 of the old web winding body 18, and a wheel 82 is also provided on the rotation shaft 30 of the upper tape sticking body 20. As shown in FIG. 3, the wheel 80 and the wheel 82 are bridged by the endless belt 84, and when the old web winding body 18 rotates, the upper tape adhering body 20 also rotates in the same direction.

  The upper joint suction portion 22 is a rectangular parallelepiped having a trapezoidal vertical cross section. The lower surface of the upper joint suction portion 22 is flat, a suction surface 23 is formed, and a plurality of suction holes are opened in the suction surface 23. The suction surface 23 faces the transport path of the old web W1 and fixes the joint of the old web W1 and the new web W2 by suction, and the lower tape affixing body 42 affixes the lower tape 52 when attaching it. Stabilize the application.

(1-2) Lower moving body 14
Next, the lower movable body 14 will be described based on FIGS. 3 and 5. The lower moving body 14 is disposed below the new web W2 and is disposed movably in the horizontal direction. A main body (hereinafter referred to as “lower main body”) 40 of the lower movable body 14 is constituted by a lower tape attaching body 42, a new web fixing portion 44, a cutting device 46, and an end fixing member 66.

  The lower tape sticking body 42 is formed in a cylindrical shape, and is rotated along the transport direction of the new web W2 by the rotating shaft 48. Lower tape temporary suction portion 50 is formed on a part of the outer peripheral surface of lower tape sticking body 42, and a plurality of suction holes are opened in suction surface 53 of lower tape temporary suction portion 50, and non-adhesion of lower tape 52 Suctioning the face. Although not shown in the drawings, pinion gears are provided at both ends of the rotation shaft 48 of the lower tape bonding body 42, and are rotated by being screwed into a rack fixed to the frame. Thereby, when the lower moving body 14 moves, the pinion gear rotates on the rack, and the lower tape sticking body 42 also rotates.

  The new web fixing portion 44 has a lower front suction portion 54 and a lower rear suction portion 56 facing the conveyance path of the new web W2, and the lower web suction portion 54 and the lower rear suction portion 56 respectively produce the new web W2. Suction. A plurality of suction holes are respectively opened in the suction surface 57 of the lower front suction portion 54 and the suction surface 61 of the lower rear suction portion 56.

  The cutting device 46 is provided between the lower front suction portion 54 and the lower rear suction portion 56, and the cutter 58 simultaneously cuts the overlapped old web W1 and new web W2 in the width direction. The detailed configuration will be described later.

  The end fixing member 66 is provided at the lower rear of the new web fixing portion 44 and winds and fixes the leading end of the new web W2.

  A lower tape sticking body 42, a new web fixing portion 44, a cutting device 46, and an end fixing member 66 are provided between a pair of left and right plate-like upper and lower members 60, 60. Further, a pair of left and right upper and lower rails 64, 64 are provided on the front and rear of the lower main body 40, respectively, and the middle actuator 62 vertically moves the pair of left and right up and down members 60 along the upper and lower rails 64, 64.

  The lower body 40 is horizontally movable along a lower rail 68 provided on a frame (not shown) in the horizontal direction, and a lower actuator 70 provided on the frame moves the lower body 40 in the horizontal direction.

(2) Cutting device 46
A cutting device 46 for simultaneously cutting the overlapped old web W1 and new web W2 will be described with reference to FIGS.

(2-1) Structure of Cutting Device 46 The structure of the cutting device 46 will be described based on FIG. 16 and FIG. As shown in FIG. 16, a cutter support portion 88 of the cutting device 46 is provided between the lower front suction portion 54 and the lower rear suction portion 56, and a cutter 58 is erected from the cutter support portion 88. The cutter 58 is in the form of a parallelogram as shown in FIG. The cutter support portion 88 moves horizontally between a pair of left and right lateral rails 90, 90 provided between the lower front suction portion 54 and the lower rear suction portion 56 by moving means such as an air cylinder. That is, it moves along the width direction of the old web W1 and the new web W2. In the following, to simplify the description, as shown in FIG. 17, the cutter supporting unit 88, which is a cutter moving means, moves from the left to the right of the old web W1 and the new web W2.

  A partition sheet 92 is horizontally attached to the lower movable body 14 above the cutter support portion 88 and below the upper end portions of the lower front suction portion 54 and the lower rear suction portion 56. The partition sheet 92 is provided with a passing slit 94 along the left-right direction, and the cutter 58 moves through the passing slit 94. The partition sheet 92 is formed of a rubber sheet.

  As shown in FIG. 16, a space surrounded by the side surface of the lower front suction portion 54, the side surface of the lower rear suction portion 56, and the partition sheet 92 is hereinafter referred to as "lower moving groove portion 96". Further, a cylindrical space surrounded by the upper moving groove portion 28 and the old web W1 is hereinafter referred to as a "cutting space 98", and a cylindrical space surrounded by the new web W2 and the lower moving groove portion 96 is hereinafter referred to It is called "cutting space 99". As shown in FIG. 17, a dust suction unit 102 is attached on the right side of the cylindrical cutting spaces 98 and 99. The dust suction portion 102 is substantially cylindrical and has an upper dust suction port 104 and a lower dust suction port 106. The left side of the cutting space 98, 99 is open. The cutting spaces 98 and 99 are vertically divided by the side surfaces of the lower front suction portion 54 and the dividing plate portions 97 extending to the right from the lower rear suction portion 56. Then, when cutting the overlapped old web W1 and new web W2, the air of the cutting space 98 is sucked from the upper dust suction port 104 of the dust suction unit 102 and the air of the cutting space 99 is sucked from the lower dust suction port 106 While the cutter 58 moves the cylindrical cutting space 98, 99 surrounded by the upper moving groove 28 and the lower moving groove 96 horizontally from left to right as shown in FIG. 16 and FIG.

(2-2) Operating State of Cutting Device 46 The operating state of the cutting device 46 will be described based on FIG. 16 and FIG. First, the old web W1 is sucked and fixed horizontally by the lower front suction portion 54 and the lower rear suction portion 56, and the new web W2 is disposed thereon, and the old web W1 and the new web W2 are disposed by the old web winding member 18. Fix in a state of sandwiching At this time, portions where it is desired to cut the old web W 1 and the new web W 2 are located in the cutting space 98, 99 surrounded by the upper moving groove 28 and the lower moving groove 96.

  Next, when the suction two-way valve 120-1 is opened and the air in the cutting space 98 from the upper dust suction port 104 of the dust suction unit 102 and the air from the cutting space 99 from the lower dust suction port 106 are suctioned, as shown in FIG. Air is drawn from left to right, as shown in FIG. This is because the left of the cutting space 98, 99 is open.

  Next, when the cutter support portion 88 is moved along the lateral rail 90, the cutter 58 moves the passing slit 94 of the partition sheet 92, and cuts the overlapped old web W1 and new web W2 in the width direction. . The dust generated by the cutting is sucked by the dust suction unit 10 and does not adhere to the surfaces of the old web W1 and the new web W2.

  Next, when the cutting of the old web W1 and the new web W2 stacked by the cutter 58 is completed, the suction of the dust suction unit 102 is stopped.

  As a result, the cutting device 46 finishes cutting without the dust adhering to the surfaces of the old web W1 and the new web W2, and the connection device 10 can shift to the next process.

(3) Structures of Suction Device 100 and Negative Pressure Device 150 Next, the structures of the suction device 100 and the negative pressure device 150 of the connection device 10 of the present embodiment will be described based on FIG. The suction device 100 includes a negative pressure pump 110, a power cylinder 112, a first check valve 108, a second check valve 116, two two-way valves 118-1 to 118-7, and seven negative pressure tanks 114-. 1 to 114-7, one suction two-way valve 120-1, six suction three-way valves 120-2 to 120-7, seven pressure gauges 122-1 to 122-7, dust suction unit 102, top There are seven systems of a junction suction unit 22, an old web suction unit 26, an upper tape temporary suction unit 32, a lower tape temporary suction unit 50, a lower front suction unit 54, and a lower rear suction unit 56. Among them, the negative pressure pump 110, the power cylinder 112, the first check valve 108, the second check valve 116, two two-way valves 118-1 to 118-7, and seven negative pressure tanks 114-1 A negative pressure device 150 is configured by 114-7.

  In the negative pressure pump 110, a piston 130 slides in a hollow cylinder casing cylinder 128, and the inside of the casing cylinder 128 is separated by the piston 130 by a first space 132 and a second space 134. The piston 130 slides by the power cylinder 112. One end of the main connection pipe 123 is connected to the first space 132 of the casing cylinder 128.

  The other end of the main connection pipe 123 is branched into two, one end of the first connection pipe 124 is connected to one end, and the other end of the second check valve 116 is connected to the other end. The other end of the first check valve 108 is open to the outside, and the flow of air in the first check valve 108 is directed from the inside of the main connection pipe 123 to the outside. The other end of the second check valve 116 is connected to one end of the first connection pipe 124, and the other end of the first connection pipe 124 is branched into seven, each branched other end and seven two-way valves 118- One ends of 1 to 118-7 are connected to one another. The flow of air in the second check valve 116 is in the direction from the two-way valves 118-1 to 118-7 to the negative pressure pump 110. Negative pressure tanks 114-1 to 114-7 are connected to the other ends of the two-way valves 118-1 to 118-7, respectively.

  The second connection pipe 126 is connected to the suction sections of the first to seventh systems and the negative pressure tanks 114-1 to 114-7, respectively. In addition, a suction two-way valve 120-1, a suction three-way valve 120-2 to 120-7, and pressure gauges 122-1 to 122-7 are provided between the second connection pipes 126-1 to 126-7, respectively. ing. Each pressure gauge 122 measures the pressure in each negative pressure tank 114. The pressure gauges 122-1 to 122-7 have a notification function in the control device 200 at a predetermined set pressure together with the pressure measurement. The suction two-way valve 120-1 is connected between the negative pressure tank 114-1 and the dust suction unit 102, and the inlets of the suction three-way valves 120-2 to 120-7 are the respective negative pressure tanks 114-2 to 114-7. The first outlets of the suction three-way valves 120-2 to 120-7 are respectively connected to the respective suction portions 22, 26, 32, 50, 54, 56, and the second outlets are respectively opened to the outside. ing.

(4) Operating State of Negative Pressure Device 150 Next, an operating state in which the negative pressure tank 114 is set to the set negative pressure −P 1 by the negative pressure pump 110 of the negative pressure device 150 will be described.

  First, in the initial state, the suction two-way valve 120-1 is closed, the inlets of the suction three-way valves 120-2 to 120-7 are closed, the first outlet and the second outlet are conductive, and the two-way valve 118 is opened. It will be in the state. The inside of the negative pressure tank 114 is at atmospheric pressure.

  Next, the power cylinder 112 slides the piston 130 of the negative pressure pump to widen the first space 132. As a result, the negative pressure pump 110 sucks the air in the negative pressure tank 114 via the second check valve 116 and the two-way valve 118. As a result, the pressure in the negative pressure tank 114 drops from the atmospheric pressure by ΔP. However, air is not drawn from the first check valve 108 because the air flow is in the reverse direction.

  Next, the power cylinder 112 slides the piston 130 of the negative pressure pump 110 to make the first space 132 the narrowest. Air in the first space 132 is released from the first check valve 108 to the outside. However, air is not sent to the negative pressure tank 114 because the air flow of the second check valve 116 is reverse to the negative pressure tank 114.

  Next, the power cylinder 112 slides the piston 130 again to widen the first space 132. As a result, the negative pressure pump 110 sucks the air in the negative pressure tank 114 via the second check valve 116 and the two-way valve 118. As a result, the pressure in the negative pressure tank 114 further decreases by ΔP from the previous negative pressure value.

  Next, the above operation is repeated a plurality of times, and the pressure is decreased by ΔP once to increase the negative pressure, and when the pressure gauge 122 measures the set negative pressure -P1, the negative pressure pump 110 and the power cylinder 112 The two-way valve 118 is closed.

  By the above operation, the inside of the negative pressure tank 114 can be lowered to the set negative pressure -P1.

(5) Structure of Suction Unit Each suction unit of seven systems will be described with reference to FIG.

  The first system is the substantially cylindrical dust suction unit 102 described above, the suction body of the dust suction unit 102 is dust, the suction space is the cylindrical cutting space 98, 99, and the upper dust suction port 104 corresponds to a suction surface, the lower dust suction port 106 corresponds to a suction surface, and the second connection pipe 126-1 is connected. The upper dust suction port 104 sucks dust with air from the upper empty cutting space 98 surrounded by the old web W 1 and the upper moving groove 28, and the lower dust suction port 106 is surrounded by the new web W 2 and the lower moving groove 96. The dust is sucked from the lower cutting space 99 along with the air.

  The upper joint suction portion 22 of the second system has a suction space 21 and a suction surface 23, and the suction body is a joint portion between the old web W1 and the new web W2. The suction space 21 is formed in the upper joint suction portion 22, and the second connection pipe 126-2 is connected. The suction surface 23 is formed on the lower surface of the upper joint suction portion 22 and a plurality of suction holes are opened.

  The old web suction portion 26 of the third web wound body 18 has a suction space 25 and a suction surface 27, and the suction body is the old web W1. The suction surface 27 is formed about 1/4 of the outer peripheral surface of the old web winding body 18, and a plurality of suction holes are opened. The suction space 25 is provided along the axial direction in the old web winding body 18 and has a size corresponding to the suction surface 27 and communicates with a suction port provided on the rotating shaft 24, and The connection pipe 126-3 is connected.

  The upper tape temporary suction unit 32 of the fourth-system upper tape sticking body 20 has a suction space 33 and a suction surface 35, and the suction body is the upper tape 34. The suction surface 35 is formed on the outer peripheral surface of the upper tape sticking body 20 in accordance with the length of the upper tape 34, and a plurality of suction holes are opened. The suction space 33 has a size corresponding to the suction surface 35, is provided along the axial direction in the upper tape body 20, and communicates with a suction port provided on the rotary shaft 30, and the suction port is connected to the suction port. , The second connection pipe 126-4 is connected.

  The lower tape temporary suction unit 50 of the fifth system for the lower tape pasting body 42 has a suction space 51 and a suction surface 53, and the suction body is the lower tape 52. The suction surface 53 is formed on the outer peripheral surface of the lower tape sticking body 42 in accordance with the length of the lower tape 52, and a plurality of suction holes are opened. The suction space 51 has a size corresponding to the suction surface 53, is provided along the axial direction in the lower tape attachment body 42, communicates with a suction port provided on the rotating shaft 48, and is connected to the suction port. , The second connection pipe 126-5 is connected.

  The lower front suction unit 54 of the sixth system has a suction space 55 and a suction surface 57, and the suction body is a new web W2. The suction surface 57 is formed on the upper surface of the lower front suction portion 54, and a plurality of suction holes are opened. The suction space 55 is formed in the lower front suction portion 54, and the second connection pipe 126-6 is connected.

  The lower rear suction unit 56 of the seventh system has a suction space 59 and a suction surface 61, and the suction body is a new web W2. The suction surface 61 is formed on the upper surface of the lower rear suction portion 56, and a plurality of suction holes are opened. The suction space 59 is formed in the lower rear suction portion 56, and the second connection pipe 126-7 is connected.

(6) Suction Method of Suction Unit Next, a method of suctioning the new web W2 by the lower front suction unit 54, which is one of seven systems, will be described based on FIG.

  In the initial state, the inside of the negative pressure tank 114-6 is lowered to the set negative pressure -P1 as described above. In the suction three-way valve 120-6, the inlet is closed, and the first outlet and the second outlet are in conduction. Therefore, the suction space 55 in the lower front suction portion 54 is at the atmospheric pressure because a plurality of suction holes are opened.

  First, the plurality of suction holes of the lower front suction portion 54 are closed by the new web W2, and the suction space 55 of the lower front suction portion 54 becomes the closed space.

  Next, when the inlet and the first outlet of the suction three-way valve 120-6 are brought into conduction and the second outlet is closed, a negative pressure is generated between the negative pressure tank 114-6 and the suction space 55 of the lower front suction portion 54. The internal pressure of the pressure tank 114-6 and the internal pressure of the suction space 55 of the lower front suction unit 54 are in equilibrium. That is, the internal pressure of the negative pressure tank 114 rises from the set negative pressure -P1 to -P4, and the internal pressure of the suction space 55 of the lower front suction portion 54 falls from atmospheric pressure to -P4. As described above, when the internal pressure of the suction space 55 of the lower front suction portion 54 is lowered to -P4, the new web W2 can be suctioned. The timing of this suction can be dealt with immediately by operating the suction three-way valve 120-6.

  Next, at the timing when suction of the new web W2 ends, the suction space of the lower front suction portion 54 is closed by closing the inlet of the suction three-way valve 120-6 and bringing the first outlet and the second outlet into conduction. The internal pressure of 55 rises to atmospheric pressure, and suction can be terminated.

  As described above, the suction space 55 of the lower front suction unit 54 can be easily lowered to -P4, and the new web W2 can be suctioned.

(7) Electrical Structure of Connecting Device 10 Next, the electrical structure of the connecting device 10 will be described based on the block diagram of FIG. The connection device 10 is provided with a control device 200 which is control means comprising a computer. The control device 200 starts conveyance of the old web W1 and the new web W2, carries out conveyance at the conveyance speed, and stops conveyance.

  The control device 200 includes an upper actuator 38 for moving the upper moving body 12, a lower actuator 70 for moving the lower moving body 14, a middle actuator 62 for moving the upper and lower members 60 of the lower moving body 14 up and down, a cutting device 46, and a pressing actuator. 72, a pressing actuator 74 is connected. In the control device 200, the power cylinder 112 of the suction device 100, seven two-way valves 118-1 to 118-7, one suction two-way valve 120-1, six suction three-way valves 120-2圧 力 120-7, seven pressure gauges 122-1 to 122-7 are connected.

(8) Connection Process of Connecting Device 10 Next, a process of connecting the old web W1 and the new web W2 by the connecting device 10 will be described in order based on FIG. 1, FIG. 2 and FIG. 6 to FIG.

  First, as shown in FIG. 1, the control device 200 guides the old web W 1 wound around the old core 1 into the guide roll 3, the carry-in roll 4, the lower moving body 12 of the connecting device 10, the carry-out roll 5, the guide The roll 6 is passed and conveyed horizontally. Then, the control device 200 starts the operation of the connection device 10 when the remaining amount of the old web W1 wound around the old core 1 decreases. The operator causes the suction surface 35 of the upper tape affixing body 20 to suck the non-adhesion surface of the upper tape 34 in advance, and the suction surface 53 of the lower tape temporary suction unit 50 has the non-adhesion surface of the lower tape 52 Let it aspirate beforehand.

  In the first step, as shown in FIGS. 1 and 6, the control device 200 horizontally transports the old web W1 at the positions of the loading roll 4, the lower moving body 12 and the unloading roll 5 as described above. There is. On the other hand, an end fixing member 66 provided on the lower moving body 14 while being positioned above the lower moving body 14 through the pressure roll 8 in a state where the new web W2 is horizontally disposed like the old web W1. It is fixed in a wound state. That is, in the first step, the control device 200 transports the old web W1 in the horizontal direction at a constant transport speed, and the new web W2 is stopped at a position parallel to the old web W1 and below. . Further, the control device 200 moves the upper moving body 12 downward so that the upper moving groove 28 of the old web winding body 18 of the upper moving body 12 is positioned at the position of the cutter 58 projecting from the upper surface of the lower moving body 14 Body 14 is horizontally aligned by upper and lower actuators 38 and 70, respectively. At this time, the alignment is performed such that the old web winding body 18 rolls on the surface of the old web W1. Hereinafter, this position is referred to as "initial position".

  In the second step, as shown in FIG. 7, after stopping the conveyance of the old web W1, the control device 200 moves the pressing rolls 8, 9 upward by the pressing actuators 72, 74, and the old web W1 and the new web W1 are moved. The web W 2 is sandwiched and fixed by the carry-in roll 4 and the pressure roll 8, the carry-out roll 5 and the pressure roll 9. That is, the pressing rolls 8 and 9 pressed against the loading roll 4 and the unloading roll 5 respectively exert a braking function by nipping, and the tension fluctuation of the old web W1 and new web W2 upstream and the old web W1 downstream Shut off and stabilize web tension in the connecting device 10. Further, the control device 200 moves the upper and lower members 60 of the lower movable body 14 upward from the standby height by the middle actuator 62 at the initial position, and the control device 200 lowers the lower front suction portion 54 and the lower front suction portion 54 of the new web fixing portion 44. Suction of the rear suction unit 56 is started, and the lower surface of the new web W 2 is suctioned by the lower front suction unit 54 and the lower rear suction unit 56.

  In the third step, as shown in FIG. 8, since the new web W 2 is sucked and fixed by the lower front suction part 54 and the lower rear suction part 56 of the new web fixing part 44, the control device 200 The old web W1 placed thereon is overlapped with the new web W2 and is sandwiched and fixed by the old web winding body 18. In this state, since the upper moving groove 28 of the old web winding body 18 is at the position of the cutter 58, the control device 200 follows the width direction of the old web W1 and the new web W2 in which the cutting device 46 overlaps the cutter 58. It is moved, and both the old web W1 and the new web W2 are simultaneously cut in the width direction. However, even if it is cut, the old web W1 and the new web W2 are fixed as described above. Further, in the process before the cutter 58 of the cutting device 46 cuts the old web W1 and the new web W2 in a stacked state, the control device 200 opens the suction two-way valve 120-1 to open the dust suction portion The upper dust suction port 104 and the lower dust suction port 106 are connected to the right side of the cutting space 98, 99. Next, as shown in FIG. 17, the control device 200 uses the upper dust suction port 104 of the dust suction unit 102 to form a cylindrical cutting space 98 (suction space) surrounded by the old web W1 and the upper moving groove 28. The dust generated by the cutting is suctioned, and the dust generated by the cutting is suctioned from the cylindrical cutting space 99 (suction space) surrounded by the new web W 2 and the lower moving groove 96 using the lower dust suction port 106. Next, when the cutting is completed, the control device 200 stops the dust suction unit 102.

  In the fourth step, as shown in FIG. 9, with the lower movable body 14 stopped, the control device 200 causes only the upper movable body 12 to move from the initial position along the upper rails 36, 36 from the initial position by the upper actuator 38. Move. With the movement of the upper moving body 12, the old web winding body 18 and the upper tape sticking body 20 rotate in the counterclockwise direction in FIG. That is, when the upper moving body 12 moves in the horizontal direction, the pinion gear 76 is rotated by the rack 78, and the old web winding body 18 is rotated. When the old web winding body 18 rotates, the upper tape sticking body 20 is also rotated by the belt 84.

  In the fifth step, as shown in FIG. 10, the control device 200 starts suctioning of the old web suction portion 26 of the old web winding member 18, and cutting is performed when the old web winding member 18 rotates in the counterclockwise direction. The front end portion of the old web W1 thus drawn is sucked and wound around the old web suction portion 26. As a result, the upper surface of the new web W2 is exposed, and the front end of the new web W2 is joined to the rear end of the cut old web W1. Roll joint as you straddle. That is, the adhesive surface of the upper tape 34 provided on the upper tape temporary suction portion 32 of the upper tape affixing body 20 is from above on the upper surface of the rear end portion of the old web W1 and the front end portion of the new web W2 which have been cut. It is pressed and stuck by the upper tape sticking body 20. The control device 200 stops the suction of the upper tape temporary suction unit 32 when the upper tape 34 is attached. Then, the control device 200 moves the upper moving body 12 continuously.

  In the sixth step, as shown in FIG. 11, the old web winding body 18 continues to wind the front end portion of the old web W1, and the upper tape adhering body 20 is also anticlockwise after adhering the upper tape 34. Rotate in the direction of Then, the control device 200 performs control after the suction surface 23 of the upper bonding suction unit 22 sucks the bonding portion of the upper surface of the rear end portion of the old web W1 to which the upper tape 34 is attached and the front end portion of the new web W2. The device 200 stops the movement of the upper moving body 12. Until this state, the control device 200 fixes the lower movable body 14, and thereafter, the control device 200 stops the suction of the new web W2 only at the lower front suction portion 54 of the new web fixing portion 44, and the lower rear suction portion 56 continues suctioning.

  In the seventh step, as shown in FIG. 12, the control device 200 joins the old web W1 and the new web W2 to which the upper tape 34 is attached by the upper joint suction portion 22 of the upper movable body 12 which is stopped. In the state where the suction unit is suctioned, the control device 200 causes the lower actuator 70 to move the lower moving body 14 along the rails 68 and 68 toward the unloading side. Then, the lower tape sticking body 42 of the lower moving body 14 rotates with the movement of the lower moving body 14, and the lower tape 52 temporarily fixed to the lower tape temporary suction portion 50 reaches the joining portion. When the lower tape 52 reaches this junction, the adhesive surface of the lower tape 52 connects the rear end of the old web W1 and the lower surface of the front end of the new web W2.

  In the eighth step, as shown in FIG. 13, the control device 200 further moves only the lower moving body 14 to the unloading side while stopping the movement of the upper moving body 12. At that time, since only the suction of the lower front suction portion 54 is stopped, the movement of the lower moving body 14 is held by the lower rear suction portion 56 (during suction) of the new web fixing portion 44 and the end fixing member 66 The cut end of the formed new web W2 is separated from the cutting position, and the joint between the old web W1 and the new web W2 is prepared. Then, the lower temporary tape suction unit 50 of the rotating lower tape attaching body 42 rolls along the lower tape 52 and rolls and presses the joining portion between the rear end of the old web W1 and the lower surface of the front end of the new web W2. And attach the lower tape 52 to complete the connection. Thereafter, the control device 200 stops the suction of the lower tape temporary suction unit 50.

  In the ninth step, as shown in FIG. 14, the controller 200 stops the suction of the upper joint suction portion 22 of the upper moving body 12 and then lowers the lower moving body 14 and lowers the pressing rolls 8 and 9 (ie, And releasing the upper and lower members 60 of the lower movable body 14 downward to return to the original standby height. Then, in the process, the control device 200 resumes the transport of the connected new web W2. In order to shorten the time to transport the new web W 2 again, the control device 200 moves (disengages) the upper and lower members 60 of the lower moving body 14 downward, and the pressing rolls 8 and 9 open the nip or As it is, it starts from the moment when both brakes are released. In addition, since there is a separation inhibiting factor such as static electricity due to the contact between the old web W1 and the new web cutting end, the control device 200 continues the suction of the lower back suction part 56 of the new web fixing part 44 so as not to be affected. Then, at the time of removing the leading end of the remaining unnecessary new web W2 performed in the tenth step, it is released.

  In the tenth step, as shown in FIGS. 2 and 15, the control device 200 releases the suction of the old web suction unit 26, and returns the position of the upper movable body 18 to the initial position. By this operation, the front end portion of the old web W1 sucked by the old web suction portion 26 of the old web winding member 18 is rewound, and the remaining portion of the old web W1 rewound via the carry-in roll 4 and the guide roll 3 Reverse to the old core 1 and rewind. Further, the control device 200 cancels the suction of the new web fixing portion 44, and the operator removes the leading end of the remaining new web W2 fixed to the end fixing member 66. Thereafter, the control device 200 returns the position of the lower moving body 14 to the initial position, and also returns the rotational position of the second affixing body 42 to the initial position. Thus, the connection of the old web W1 and the new web W2 and the residual processing are completed.

(9) Suction process of the negative pressure device 150 and the suction device 100 Next, in the negative pressure device 150 and the suction device 100, a process of the lower front suction portion 54 sucking the new web W2 will be described with reference to FIG. This will be described based on the flowchart of FIG.

  In step S1, the controller 200 closes the inlets of all the suction three-way valves 120-1 to 120-7, and places the first outlet and the second outlet in a conducting state.

  In step S2, the control device 200 opens all the two-way valves 118-1 to 118-7, and proceeds to step S3.

  In step S3, the control device 200 slides the piston 130 of the negative pressure pump 110 by the power cylinder 112 to widen the first space 132 and lowers the inside of the negative pressure tanks 114-1 to 114-7 by ΔP. Then, the process proceeds to step S4.

  In step S4, the controller 200 measures with the pressure gauges 122-1 to 122-7 whether or not the inside of the negative pressure tank 114-1 to 114-7 has become the set negative pressure -P1, and all the negative pressure tanks If the inside of 114-1 to 114-7 has dropped to the set negative pressure -P1, the process proceeds to step S5 (in the case of y), and if not dropped to the set negative pressure -P1, the process returns to step S3. Just lower again (if n). In the negative pressure tank 114 which has fallen to the set negative pressure -P1 among the seven systems, only the two-way valve 118 connected to the negative pressure tank 114 is closed.

  In step S5, since all of the negative pressure tanks 114-1 to 114-7 have dropped to the set negative pressure -P1, the control device 200 closes all the two-way valves 118 to set the negative pressure pump 110. Stop it. Then, the process proceeds to step S6.

  In step S6, the control device 200 sets the suction of all the suction units to a standby state, and proceeds to step S7.

  In step S7, the control device 200 instructs suction start of the lower front suction unit 54 when the above-mentioned second process is performed.

  In step S8, the controller 200 brings the inlet and the first outlet of the suction three-way valve 120-6 into conduction, and the second outlet is closed. Then, the internal pressure of the suction space 55 of the lower front suction unit 54 is lowered to be in an equilibrium state, and the process proceeds to step S11. Assuming that the volume of the negative pressure tank 114 is V1, the set pressure is -P1, the volume of the suction space 55 of the lower suction portion 54 is V2, and the suction pressure is -P2, V1: V2 = |-P1 |: |-P2 | It becomes. The suction pressure -P2 is a pressure when the suction three-way valve 120-6 is conducted and the internal pressure of the lower front suction portion 54 and the negative pressure tank 114-6 is in an equilibrium state. However, flow resistance factors are excluded. The operation of this equation will be described in detail by a specific example. In addition, these figures are examples to the last. When V1 = -80 Kp, the amount of air is 0.2 atm, and when the volume of the negative pressure tank 114-6 is 5 L (liter), 1 L of air (air) remains. On the other hand, if the volume of the lower front suction portion 54 is 1 L, although the atmospheric pressure is obtained when the suction three-way valve 120-6 is opened, the suction surface 57 is shielded by the old new webs W1 and W2, When the lower front suction portion 54 and the negative pressure tank 114-6 are conducted by the suction three-way valve 120-6, the internal pressure of the lower front suction portion 54 and the negative pressure tank 114-6 is (1L + 1L) / (5L + 1L) = 2/6 It will be in equilibrium at atmospheric pressure, i.e. -P2 = about -67 Kp. Thus, the set pressure -P1 is determined from the sum of the amount of air and the sum of the amounts of air present in the lower front suction portion 54 and the negative pressure tank 114-6.

  In step S9, since the internal pressure of the suction space 55 of the lower front suction unit 54 is lowered to -P2, suction of the new web W2 can be performed, and the process proceeds to step S10.

  In step S10, the control device 200 instructs the end of suction when the sixth step described above is performed, and proceeds to step S11.

  In step S11, the control device 200 closes the inlet of the suction three-way valve 120-7 and places the first outlet and the second outlet in a conductive state. As a result, the internal pressure of the suction space 55 of the lower front suction unit 54 rises to atmospheric pressure, and the process proceeds to step S12.

  In step S12, since the internal pressure of the suction space on the lower front suction surface becomes atmospheric pressure, suction of the new web W2 is completed, and the process returns to step S2.

  The operations of steps S6 to S12 are performed in parallel with the suction start timings and suction end timings of the suction units of systems other than the lower front suction unit 54, respectively.

(10) Effects According to the cutting device 46 of this embodiment, the space where the old web W1 and the new web W2 are overlapped and cut by the cutter 58 is a cylindrical cutting space surrounded by the old web W1 and the upper moving groove portion 28 98 is a cylindrical cutting space 99 surrounded by the new web W2 and the lower moving groove 96, and the dust suction unit 102 is connected on the right side thereof to suction the dust generated by the cutting. Therefore, dust does not adhere to the surfaces of the old web W1 and the new web W2.

  Further, according to the negative pressure device 150 of the present embodiment, the negative pressure pump 110 can slide the piston 130 a plurality of times by the power cylinder 112 to lower the inside of the negative pressure tank 114 to the set negative pressure -P1. The structure is simplified and the cost can be reduced. In particular, when the set negative pressure -P1 is set to a value lower than the atmospheric pressure and higher than the medium vacuum degree -100 pha, for example -80 to -60 pha, the pressure in the negative pressure tank 114 can be reduced more easily.

  Further, according to the suction device 100 of the present embodiment, the dust, the old web W1, the new web W2, and the upper portion are operated by operating the suction three-way valve 120 to balance the internal pressure of the negative pressure tank 114 and the suction space of the suction portion. Suction bodies such as the tape 34 and the lower tape 52 can be easily suctioned.

(11) Modification In the above embodiment, a cylindrical cutting space is formed by the upper moving groove portion 28 of the old web winding member 18 in the upper moving body 12 and the lower moving groove portion 96 in the new web fixing portion 44 of the lower moving body 14 Although 98.99 is formed, the cutting spaces 98 and 99 may be formed by other members, and the old web W1 and the new web W2 may be simultaneously cut by the cutter 58.

  In the above embodiment, the negative pressure tank 114 is lowered to negative pressure by the suction device 100 of the negative pressure pump 110, the power cylinder 112, the first check valve 108, and the second check valve 116. Not limited to this, the negative pressure space may be negative pressure.

  In the above embodiment, when the first space 132 of the negative pressure pump 110 is made wide by the piston 130, the negative pressure tank 114 is made negative pressure, but not limited to this, when making the second space 134 wide, or When the first space 132 and the second space 134 are alternately widened, the negative pressure tank 114 may be evacuated.

  Further, in the above embodiment, the suction device 100 is used in the connection device 10 using the upper moving body 12 and the lower moving body 14, but instead of this, a connecting device having a suction structure conventionally known is used in the present embodiment. The suction device 100 may be applied.

  In the above embodiment, the piston 130 of the negative pressure pump 110 is slid by the power cylinder 112. However, the piston 130 may be slid by a device other than the power cylinder 112.

  In the above embodiment, the inside of one negative pressure tank 114 is lowered to the set negative pressure -P1, but if the suction unit requires a larger suction force, an auxiliary tank is connected to the negative pressure tank 114. Then, the auxiliary tank volume V3 is added to the negative pressure tank 114 volume V1. Then, the negative pressure pump 110 can obtain a larger suction force by the suction portion by lowering the pressure in the negative pressure tank 114 and the inside of the auxiliary tank to the set negative pressure -P1.

  In the above embodiment, all seven negative pressure tanks 114-1 to 114-7 are connected in parallel by the first connection pipe 124. However, for example, the seven suction portions may be four lines that require a high suction force. Form a second parallel system consisting of a first parallel system consisting of a suction section of 3 and a suction system of 3 systems requiring a low suction force, and further connecting the first parallel system and the second parallel system in parallel to form a main parallel circuit , And the formed main parallel piping and one negative pressure pump 110 may be connected by the first connection pipe 124.

  Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

W1: Old web, W2: New web, 10: Connecting device, 12: Upper moving body, 14: Lower moving body, 18: Old web wound body, 20: 20 Upper tape affixing body, 22 · · · upper joint suction portion, 34 · · · upper tape, 42 · · · lower tape affixing body, 44 · · · new web fixing portion, 46 · · · cutting device, 52 · · · · · · Lower tape, 58 · · · Cutter, 100 · · · suction device, 102 · · · dust suction portion, 108 · · · first check valve, 110 · · · negative pressure pump, 114 · · · negative pressure Tank 116 116 second check valve 118 two-way valve 120-1 two-way suction valve 120-2 to 120-7 three-way suction valve 122 pressure Total, 123 ... main connection pipe, 124 ... first connection pipe, 126 ... second connection pipe, 150 ... negative pressure device, 200 ... control device

Claims (9)

In a web cutting device that cuts in the width direction with the upper web and the lower web stacked one on top of the other,
Upper fixing means and lower fixing means for fixing the upper web and the lower web by sandwiching them from above and below;
An upper moving groove portion provided along the width direction of the lower surface of the upper fixing means;
A lower moving groove portion provided along the width direction of the upper surface of the lower fixing means;
A cutter moving in the width direction in the lower moving groove;
A dust suction unit provided on one of the upper moving groove and the lower moving groove in the width direction;
A cutter moving unit provided below the lower moving groove and moving the cutter in the width direction;
A partition sheet provided between the lower moving groove and the cutter moving means;
A passing slit provided in the width direction of the partition sheet and in which the cutter moves;
Have
The upper fixing means and the lower fixing means form a cylindrical cutting space surrounded by the upper moving groove portion and the lower moving groove portion, sandwiching the upper web and the lower web in an overlapping state; The dust suction unit moves the cutter in the width direction and simultaneously cuts the upper web and the lower web while moving the cutter in the width direction while suctioning air in the cutting space.
A web cutting device characterized in that. The dust suction unit is attached to one of the cylindrical cutting spaces,
The other side of the cutting space is open,
The web cutting device according to claim 1. The cutter moves from the other open end in the cutting space to one on which the dust suction unit is attached,
The web cutting device according to claim 2. The partition sheet is made of rubber,
The web cutting device according to claim 1 . The upper moving groove and the lower moving groove are divided,
The web cutting device according to claim 1. The dust suction unit includes an upper suction port for sucking air in the upper moving groove and the upper moving groove above the lower web, and a lower moving groove below the upper web and the lower web. And a lower suction portion for drawing air from the
The web cutting device according to claim 5. The shape of the cutter is a plate shape and is vertically provided.
The web cutting device according to claim 1. The shape of the cutter is a parallelogram plate inclined in the moving direction toward the top,
The web cutting device according to claim 7. In a web connecting apparatus for connecting an old web to be transported and a new web using the web cutting apparatus according to claim 1;
The upper web is the old web, and the lower web is the new web,
An upper moving member movable along the upper side of the transport path of the old web and the new web;
A lower moving body having a tip end of the new web fixed and movable along the lower side of the transport path;
An old web winding body as the upper fixing means provided on the upper moving body and fixing the old web whose transportation has been stopped;
A new web fixing unit as the lower fixing means provided on the lower moving body and fixing the new web whose conveyance has been stopped;
The old web and the new web are moved in the width direction in a state in which the old web and the new web overlap while being provided on the lower moving body and sandwiched by the old web winding body and the new web fixing portion. And said cutting device for simultaneously cutting
A web connecting device characterized by having:

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