JP2017154898A - Connecting device of web - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connecting device of a web which can superimpose an old web and a new web, cut the webs with a cutting device, and remove an unnecessary old web before pasting a tape to a connection portion of both the old web and the new web.SOLUTION: A connecting device of a web comprises: an old web winding body 20 which is rotatably provided in an upper movable body 12, presses an old web W1 whose conveyance is stopped together with a new web W2 against a lower body 40, and winds only the cut old web W1 while rotating it; a cutting device 46 which is provided in the lower body 40, superimposes the old web W1 and the new web W2 sandwiched between the old web winding body 20 and the lower body 40, and cuts the webs with a cutter 58; and an upper tape pasting body 20 which is rotatably provided in the upper movable body 12, sucks an upper tape 34, and pastes the upper tape 34 to a connection portion of the cut old web W1 and new web W2 while rotating the upper tape.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a web connecting apparatus for connecting an old web and a new web.

  Conventionally, connection devices for connecting a new web to an old web are: first, the old web and the new web are overlapped; second, the front and rear of the planned cutting portion are clamped by the web holding member; and third, the old and new webs are cut Cut at the same time, fourth, remove the unnecessary parts of both the old and new webs while sucking and holding the rear end of the old web and the front end of the new web with the suction surface of the web holding member, and fifth, the old web Tape the rear edge of the new web to the front edge of the new web.

JP-A-5-246589 JP 2005-15145 A

  When connecting the old web and the new web in the web connection device as described above, the old web and the new web are overlapped and cut with a cutting device, and a tape is attached to the cut portion to remove the old web There is a problem that it is difficult to remove the web and connect the necessary old and new webs.

  Accordingly, in view of the above problems, the present invention is a web in which an old web and a new web are overlapped and cut with a cutting device, and an unnecessary old web can be removed before a tape is attached to a connecting portion between the old and new webs. An object of the present invention is to provide a connection device.

  The present invention includes an upper body above an old web conveyance path that is conveyed in a certain conveyance direction from upstream to downstream, and a lower body that is below the upper main body and fixes the new web across the conveyance path. A main body, an old web winding body that is provided rotatably on the upper main body and sucks the old web, and an upper web winding body, and a cutting device that is provided on the lower main body and has a cutter. (1) In a state where the rotation of the old web winding body is stopped, the old web and the new web, which have been stopped by the old web winding body, are stacked on the lower main body. (2) The cutter is moved inside the cutter movement groove by the cutting device to cut the overlapped old web and the new web at the same time, and (3) the old web winding body Rotate Wound only the old web severed upstream sucked by the expiring web suction unit, a web connecting device.

  According to the present invention, the old web and the new web are overlapped and cut by the cutting device, and the unnecessary old web cut upstream can be removed by the old web wound body.

1 is an overall view of an initial state of a connection device showing an embodiment of the present 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. FIG. 4 is a cross section taken along line AA in FIG. It is a top view of a lower moving body. 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 an 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 of the state which is going to cut | disconnect an old web and a new web with a cutting device. It is a partially missing front view of the state which is going to cut | disconnect 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 rear 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, a web W connecting device 10 according to an embodiment of the present invention will be described with reference to 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 fabric, paper, film, metal foil, and the like. In the connection device 10, “carry-in side” means the upstream side where the web W is conveyed, and “carry-out side” means the downstream side where the web W is conveyed.

  As shown in FIG. 1, the connecting device 10 has less old web W1 wound around the old core 1, so that the new web W2 wound around the new core 2 is connected after the old web W1.

  The old web W1 and the new web W2 are transported along a horizontal transport path as shown in FIGS. As shown in FIG. 1, the old web W1 passes through the guide roll 3, passes through the connection roll 10 through the carry-in roll 4, passes through the carry-out roll 5, and then is guided to the coating apparatus through the guide roll 6. The On the other hand, the new web W2 wound around the new core 2 passes through the guide roll 7, passes over the press roll 8 provided below the carry-in roll 4, and its tip is fixed to the connecting device 10. ing.

  A pressing roll 9 is also arranged below the carry-out roll 5. As shown in FIG. 3, the pressing roll 8 and the pressing roll 9 are moved up and down by pressing actuators 72 and 74, respectively. Each of the pressing roll 8 and the pressing roll 9 has a brake function, holds the tension of the web W between the pressing roll 8 and the pressing roll 9 by both nips, and blocks tension fluctuations received from the upstream and downstream.

(1) Structure of Connection Device 10 The structure of the connection device 10 will be described with reference to FIGS. The connection device 10 includes 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 with reference to FIGS. The upper moving body 12 is disposed above the old web W1 and is movably disposed in the horizontal direction. A main body 16 (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 attaching body 20, and an upper joint suction portion 22 from the carry-in side. The upper main body 16 having the old web winding body 18, the upper tape pasting body 20, and the upper joint suction portion 22 is disposed between the pair of left and right upper rails 36, 36, and the upper actuator 38 connects the upper main body 16 to the upper rail. It moves horizontally along 36,36.

  The old web winding body 18 is formed in a columnar shape, and rotates along the conveyance direction of the old web W1 by the rotation 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 body 18, and an upper moving groove portion 28 through which the cutter 58 passes is formed at the 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 body 18. The suction surface 27 has a plurality of suction holes. 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 and provided on both sides of the upper moving body 12. The racks 78, 78 arranged horizontally are screwed to rotate. The rack 78 is supported by a frame 86 for fixing the connection device 10. Upper rails 36 and 36, an upper actuator 38, lower rails 68 and 68 and a lower actuator 70, which will be described later, are also fixed to the frame 86. As a result, 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 attaching body 20 is formed in a columnar shape, and rotates along the conveyance direction of the old web W1 by the rotation shaft 30. An upper tape temporary suction portion 32 is provided on a part of the outer peripheral surface of the upper tape pasting body 20, and a plurality of suction holes are opened on the suction surface 35 of the upper tape temporary suction portion 32, so The adhesive surface is sucked and temporarily fixed. As shown in FIG. 4, a wheel 80 is provided on one side of the rotating shafts 24, 24 of the old web winding body 18, and a wheel 82 is also provided on the rotating shaft 30 of the upper tape pasting body 20. As shown in FIG. 3, the wheel 80 and the wheel 82 are bridged by an endless belt 84, and when the old web winding body 18 rotates, the upper tape attaching body 20 also rotates in the same direction.

  The upper bonding suction part 22 is a rectangular parallelepiped having a trapezoidal longitudinal section. The lower surface of the upper bonding suction portion 22 is flat, and a suction surface 23 is formed. The suction surface 23 has a plurality of suction holes. The suction surface 23 faces the conveyance path of the old web W1, and the joint between the old web W1 and the new web W2 is fixed by suction, and the lower tape attaching body 42 attaches the lower tape 52 when the lower tape 52 is attached. Stabilize the attachment.

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

  The lower tape attaching body 42 is formed in a columnar shape, and rotates along the conveyance direction of the new web W2 by the rotation shaft 48. A lower tape temporary suction portion 50 is formed on a part of the outer peripheral surface of the lower tape pasting body 42, and a plurality of suction holes are opened on the suction surface 53 of the lower tape temporary suction portion 50 so that the lower tape 52 is not bonded. The surface is sucked. Although not shown in the drawing, pinion gears are provided at both ends of the rotating shaft 48 of the lower tape attaching body 42, and rotate by being screwed into a rack fixed to the frame. Accordingly, when the lower moving body 14 moves, the pinion gear rotates on the rack, and the lower tape attaching body 42 also rotates.

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

  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 stacked old web W1 and new web W2 in the width direction. Detailed configuration will be described later.

  The end fixing member 66 is provided below the new web fixing portion 44 and winds and fixes the tip of the new web W2.

  A lower tape attaching 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. In addition, a pair of left and right upper and lower rails 64 and 64 are provided on the front and rear of the lower body 40, respectively, and the middle actuator 62 moves the pair of left and right upper and lower members 60 up and down along the upper and lower rails 64 and 64.

  The lower main body 40 can move in the horizontal direction along a lower rail 68 provided in a frame (not shown) in the horizontal direction, and a lower actuator 70 provided in the frame moves the lower main body 40 in the horizontal direction.

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

(2-1) Structure of the cutting device 46 The structure of the cutting device 46 is demonstrated 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 the cutter 58 is erected from the cutter support portion 88. As shown in FIG. 17, the cutter 58 has a parallelogram-like plate shape, and is inclined toward the traveling side of the cutter 58 upward. The cutter support part 88 moves horizontally between a pair of left and right horizontal rails 90, 90 provided between the lower front suction part 54 and the lower rear suction part 56 by a 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, for the sake of simplicity, it is assumed that the cutter support portion 88 as cutter moving means moves from the left to the right of the old web W1 and the new web W2, as shown in FIG.

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

  As shown in FIG. 16, the 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 a “lower moving groove portion 96”. In addition, 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 as “cutting space 98”. This is called “cutting space 99”. As shown in FIG. 17, a dust suction portion 102 is attached to 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 sides of the cutting spaces 98 and 99 are open. Further, the cutting spaces 98 and 99 are vertically partitioned by a side surface of the lower front suction portion 54 and a partition plate portion 97 extending rightward from the lower rear suction portion 56. When cutting the stacked old web W1 and new web W2, the air in the cutting space 98 is sucked from the upper dust suction port 104 of the dust suction unit 102, and the air in the cutting space 99 is sucked from the lower dust suction port 106. Meanwhile, as shown in FIGS. 16 and 17, the cutter 58 moves horizontally from the left to the right in the cylindrical cutting spaces 98 and 99 surrounded by the upper moving groove 28 and the lower moving groove 96.

(2-2) Operating State of Cutting Device 46 The operating state of the cutting device 46 will be described with reference to FIGS. 16 and 17. First, the old web W1 is horizontally sucked and fixed by the lower front suction part 54 and the lower rear suction part 56, the new web W2 is arranged thereon, and the old web W1 and the new web W2 are arranged by the old web winding body 18. Secure with pinching. At this time, the location where the old web W1 and the new web W2 are to be cut is located in the cutting spaces 98 and 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 air in the cutting space 98 is sucked from the upper dust suction port 104 and air is sucked from the cutting space 99 from the lower dust suction port 106, FIG. As shown, air is drawn from left to right. This is because the left of the cutting spaces 98 and 99 is open.

  Next, when the cutter support portion 88 is moved along the horizontal rail 90, the cutter 58 moves the passing slit 94 of the partition sheet 92 and cuts the stacked 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 on which the cutters 58 are overlapped, the suction of the dust suction unit 102 is stopped.

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

(3) Structure of the suction device 100 and the negative pressure device 150 Next, the structure of the suction device 100 and the negative pressure device 150 of the connection device 10 of this embodiment will be described with reference to 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, seven two-way valves 118-1 to 118-7, and seven negative pressure tanks 114-. 1-1114-7, 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 part 102, upper It consists of seven systems: a joining suction part 22, an old web suction part 26, an upper tape temporary suction part 32, a lower tape temporary suction part 50, a lower front suction part 54, and a lower rear suction part 56. Among them, the negative pressure pump 110, the power cylinder 112, the first check valve 108, the second check valve 116, the seven two-way valves 118-1 to 118-7, and the seven negative pressure tanks 114-1 to 114-1. The negative pressure device 150 is configured by 114-7.

  In the negative pressure pump 110, a piston 130 slides inside a hollow cylindrical casing cylinder 128, and the inside of the casing cylinder 128 is divided by a first space 132 and a second space 134 by the piston 130. The piston 130 is slid 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 branches 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 opened to the outside, and the air flow in the first check valve 108 is in the direction 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 branches into seven pieces, each of the branched other ends and the seven two-way valves 118- One end of each of 1-118-7 is connected. The air flow in the second check valve 116 is 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 parts of the first to seventh systems and the negative pressure tanks 114-1 to 114-7, respectively. 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 function of notifying 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 connected to the negative pressure tanks 114-2 to 114-7. The first outlets of the suction three-way valves 120-2 to 120-7 are connected to the suction portions 22, 26, 32, 50, 54, and 56, and the second outlets are opened to the outside. ing.

(4) Operation State of Negative Pressure Device 150 Next, an operation state in which the negative pressure tank 114 is set to the set negative pressure −P1 by the negative pressure pump 110 included in 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. State. The inside of the negative pressure tank 114 is 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 air in the negative pressure tank 114 through the second check valve 116 and the two-way valve 118. As a result, the pressure in the negative pressure tank 114 decreases from the atmospheric pressure by ΔP. However, air is not sucked 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 state. Air in the first space 132 is discharged from the first check valve 108 to the outside. However, since the air flow of the second check valve 116 is reverse to the negative pressure tank 114, air is not sent to the negative pressure tank 114.

  Next, the power cylinder 112 causes the piston 130 to slide again to expand the first space 132. As a result, the negative pressure pump 110 sucks air in the negative pressure tank 114 through 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 negative pressure is increased by reducing the pressure by ΔP at one time. When the pressure gauge 122 measures the set negative pressure −P1, the negative pressure pump 110 and the power cylinder 112 are measured. Is stopped, and 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 part Each of the seven suction parts will be described with reference to FIG.

  The first system is the substantially cylindrical dust suction portion 102 described above, the suction body of the dust suction portion 102 is dust, the suction spaces are cylindrical cutting spaces 98 and 99, and the upper dust suction port. 104 corresponds to the suction surface, the lower dust suction port 106 corresponds to the suction surface, and the second connection pipe 126-1 is connected. The upper dust suction port 104 sucks dust together with air from the upper cutting space 98 surrounded by the old web W1 and the upper moving groove portion 28, and the lower dust suction port 106 is surrounded by the new web W2 and the lower moving groove portion 96. Dust is sucked together with air from the lower cutting space 99.

  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 part 22 and connected to the second connection pipe 126-2. The suction surface 23 is formed on the lower surface of the upper bonding suction portion 22 and has a plurality of suction holes.

  The old web suction part 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 ¼ of the outer peripheral surface of the old web wound body 18, and a plurality of suction holes are opened. The suction space 25 is provided in the old web winding body 18 along the axial direction, has a size corresponding to the suction surface 27, and communicates with a suction port provided on the rotary shaft 24. A connecting pipe 126-3 is connected.

  The upper tape temporary suction portion 32 of the fourth system upper tape pasting 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 attaching body 20 according to 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 in the upper tape attaching body 20 along the axial direction, and communicates with a suction port provided in the rotary shaft 30. The second connection pipe 126-4 is connected.

  The lower tape temporary suction part 50 of the fifth tape lower tape attaching 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 attaching 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 attaching body 42, and communicates with a suction port provided in the rotary shaft 48. The second connection pipe 126-5 is connected.

  The lower front suction part 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 has a plurality of suction holes. The suction space 55 is formed in the lower front suction portion 54 and is connected to the second connection pipe 126-6.

  The lower rear suction portion 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 is connected to the second connection pipe 126-7.

(6) Suction Method of Suction Unit Next, a method in which the lower front suction unit 54, which is one of the seven systems, suctions the new web W2 will be described with reference to 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 in a closed state, and the first outlet and the second outlet are in a conductive state. Therefore, the suction space 55 in the lower front suction part 54 is at 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 a closed space.

  Next, when the inlet and the first outlet of the suction three-way valve 120-6 are made conductive 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 portion 54 are in an equilibrium state. That is, the internal pressure of the negative pressure tank 114 increases from the set negative pressure −P1 to −P4, and the internal pressure of the suction space 55 of the lower front suction unit 54 decreases 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 sucked. This suction timing can be dealt with immediately by operating the suction three-way valve 120-6.

  Next, at the timing when the suction of the new web W2 ends, the suction space of the lower front suction portion 54 is set by closing the inlet of the suction three-way valve 120-6 and connecting the first outlet and the second outlet. 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 portion 54 can be easily lowered to -P4, and the new web W2 can be sucked.

(7) Electrical Structure of Connection Device 10 Next, the electrical structure of the connection 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 a control means composed of a computer. The control device 200 starts conveyance of the old web W1 and the new web W2, performs conveyance at the conveyance speed, and stops conveyance.

  The control device 200 includes an upper actuator 38 that moves the upper moving body 12, a lower actuator 70 that moves the lower moving body 14, a middle actuator 62 that moves 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. Further, the control device 200 includes a power cylinder 112 of the suction device 100, seven two-way valves 118-1 to 118-7, one suction two-way valve 120-1, and six suction three-way valves 120-2. To 120-7, seven pressure gauges 122-1 to 122-7 are connected.

(8) Connection Step of Connection Device 10 Next, the steps in which the connection device 10 connects the old web W1 and the new web W2 will be described in order based on FIG. 1, FIG. 2, and FIGS.

  First, as shown in FIG. 1, the control device 200 converts the old web W1 wound around the old core 1 into the guide roll 3, the carry-in roll 4, the connection device 10 below the upper moving body 12, the carry-out roll 5, and the guide. The roll 6 is passed and conveyed in a horizontal state. Then, when the remaining amount of the old web W1 wound around the old core 1 decreases, the control device 200 starts the operation of the connection device 10. The operator causes the suction surface 35 of the upper tape pasting 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 portion 50 applies the non-adhesion surface of the lower tape 52 to the suction surface 35. Aspirate in advance.

  In the first step, as shown in FIGS. 1 and 6, the control device 200 horizontally conveys the position of the carry-in roll 4, the lower side of the upper moving body 12, and the carry-out roll 5 as described above. Yes. On the other hand, the new web W2 is positioned horizontally above the lower moving body 14 via the pressing roll 8 in a state of being horizontally disposed in the same manner as the old web W1, and the end fixing member 66 provided on the lower moving body 14. It is fixed in a state of being wound around. That is, in this 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 parallel to the old web W1 and at a lower position. . Further, the control device 200 moves downward with the upper moving body 12 so that the upper moving groove portion 28 of the old web winding body 18 of the upper moving body 12 is positioned at the position of the cutter 58 protruding from the upper surface of the lower moving body 14. The body 14 is aligned in the horizontal direction by the upper actuator 38 and the lower actuator 70, respectively. In this alignment, the old web wound body 18 is rotated so as to roll on the surface of the old web W1. Hereinafter, this position is referred to as an “initial position”.

  In the second step, as shown in FIG. 7, after stopping the transport of the old web W1, the control device 200 moves the press rolls 8 and 9 upward by the press actuators 72 and 74, so that the old web W1 and the new web W1 are new. The web W <b> 2 is sandwiched and fixed between the carry-in roll 4 and the press roll 8, and the carry-out roll 5 and the press roll 9. That is, the pressing rolls 8 and 9 that are respectively crimped to the carry-in roll 4 and the carry-out roll 5 exert a braking function by niping, and the tension variation of the old web W1 and the new web W2 upstream and the old web W1 from the downstream is changed. It shuts off and stabilizes the web tension in the connecting device 10. Further, the control device 200 moves the upper and lower members 60 of the lower moving body 14 upward from the standby height by the middle actuator 62 at the initial position, and the control device 200 moves the lower web suction portion 54 and the lower front suction portion 54 to the lower position. The suction of the rear suction unit 56 is started, and the lower front suction unit 54 and the lower rear suction unit 56 suck the lower surface of the new web W2.

  In the third step, the new web W2 is sucked and fixed by the lower front suction portion 54 and the lower rear suction portion 56 of the new web fixing portion 44, as shown in FIG. 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 portion 28 of the old web winding body 18 is located at the position of the cutter 58, the control device 200 follows the width direction of the old web W <b> 1 and the new web W <b> 2 where 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 cut, the old web W1 and the new web W2 are fixed as described above. Further, in a process before the cutter 58 of the cutting device 46 cuts the old web W1 and the new web W2 in an overlapped state, the control device 200 opens the suction two-way valve 120-1 and opens the dust suction unit. The upper dust suction port 104 and the lower dust suction port 106 are connected to the right side of the cutting spaces 98 and 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 W <b> 1 and the upper moving groove 28. The dust generated by the cutting is sucked, and the dust generated by the cutting is sucked from the cylindrical cutting space 99 (suction space) surrounded by the new web W2 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 moving body 14 stopped, the control device 200 causes the upper actuator 38 to move only the upper moving body 12 from the initial position to the carry-in side along the upper rails 36 and 36. To move. As the upper moving body 12 moves, the old web wound body 18 and the upper tape attaching 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 is rotated, the upper tape attaching body 20 is also rotated by the belt 84.

  In the fifth step, as shown in FIG. 10, the control device 200 starts suction of the old web suction portion 26 of the old web winding body 18, and cuts when the old web winding body 18 rotates counterclockwise. The front end portion of the old web W1 is sucked and wound around the old web suction portion 26. As a result, the upper surface of the new web W2 is exposed, the front end portion of the new web W2 is joined to the rear end portion of the old web W1 that has been cut, and the succeeding upper tape temporary suction portion 32 is connected to the upper tape 34 at this joining position. Roll and join so as to straddle. That is, the adhesive surface of the upper tape 34 provided in the upper tape temporary suction portion 32 of the upper tape pasting body 20 is on the upper surface of the rear end portion of the cut old web W1 and the front end portion of the new web W2 from above. It is pressed and pasted by the upper tape pasting body 20. When the upper tape 34 is applied, the control device 200 stops the suction of the upper tape temporary suction unit 32. Then, the control device 200 continues to move the upper moving body 12.

  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 attaching body 20 rotates counterclockwise even after the upper tape 34 is attached. Rotate in the direction of. Then, the control device 200 controls the suction surface 23 of the upper joint suction portion 22 after sucking the joint portion between the rear end portion of the old web W1 and the front end portion of the new web W2 to which the upper tape 34 is attached. The apparatus 200 stops the movement of the upper moving body 12. Until this state, the control device 200 fixes the lower moving body 14, and then the control device 200 stops the suction of the new web W2 only by the lower front suction portion 54 of the new web fixing portion 44, and the lower rear suction portion. 56 continues the suction.

  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 adhered by the upper joining suction part 22 of the upper moving body 12 that is stopped. In the state where the part is sucked, the control device 200 moves the lower moving body 14 to the carry-out side along the lower rails 68 and 68 by the lower actuator 70. Then, the lower tape attaching 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 joint portion. When the lower tape 52 reaches this joint, the lower end of the old web W1 and the lower end of the front end of the new web W2 are connected by the adhesive surface of the lower tape 52.

  In the eighth step, as shown in FIG. 13, the control device 200 further moves only the lower moving body 14 to the carry-out side while stopping the movement of the upper moving body 12. At that time, since only the suction of the lower front suction part 54 is stopped, the lower web suction part 56 (during suction) and the end fixing member 66 are held by the movement of the lower moving body 14. The cut end of the new web W2 is separated from the cutting position, and the joint between the old web W1 and the new web W2 is arranged. Then, the lower tape temporary suction portion 50 of the rotating lower tape pasting body 42 is accompanied by the lower tape 52 and rolls across the junction between the rear end portion of the old web W1 and the front end portion of the new web W2, Then, the lower tape 52 is attached 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, after stopping the suction of the upper joint suction part 22 of the upper moving body 12, the control device 200 lowers the lower moving body 14 and lowers the pressing rolls 8 and 9 (that is, Each brake is released), and the upper and lower members 60 of the lower moving body 14 are moved downward to return to the original standby height. And in the process, the control apparatus 200 restarts conveyance of the connected new web W2. In order to reduce the time for resuming the conveyance of the new web W2, the control device 200 moves (detaches) the upper and lower members 60 of the lower moving body 14 downward, and the pressing rolls 8 and 9 are in the nip open state or in the nip state. Continue from the moment when both brakes are released. In addition, since there is a factor that prevents separation such as static electricity due to contact between the old web W1 and the new web cutting end, the control device 200 continues to suck the lower rear suction portion 56 of the new web fixing portion 44 so as not to be affected by this. Then, the removal is performed at the time of removing the remaining tip of the unnecessary new web W2 performed in the tenth step.

  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 moving body 18 to the initial position. By this operation, the front end portion of the old web W1 that has been sucked by the old web suction portion 26 of the old web winding body 18 is rewound, and the remaining portion of the old web W1 that has been rewound through the carry-in roll 4 and the guide roll 3 is unwound. Reverse to the old core 1 and rewind. Further, the control device 200 releases the suction of the new web fixing portion 44, and the operator removes the tip portion 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 pasting body 42 to the initial position. Thus, the connection between the old web W1 and the new web W2 and the remaining process are completed.

(9) Suction Step of the Negative Pressure Device 150 and the Suction Device 100 Next, in the negative pressure device 150 and the suction device 100, the lower front suction portion 54 sucks the new web W2 with the explanatory view of FIG. This will be described based on the flowchart of FIG.

  In step S1, the control device 200 closes the inlets of all the suction three-way valves 120-1 to 120-7 and puts the first outlet and the second outlet into 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 with the power cylinder 112 to widen the first space 132, and lowers the negative pressure tanks 114-1 to 114-7 by ΔP. Then, the process proceeds to step S4.

  In step S4, the control device 200 measures whether or not the inside of the negative pressure tanks 114-1 to 114-7 has reached the set negative pressure -P1 with the pressure gauges 122-1 to 122-7, and all the negative pressure tanks are measured. If the pressure in 114-1 to 114-7 has decreased to the set negative pressure −P 1, the process proceeds to step S 5 (in the case of y), and if not decreased to the set negative pressure −P 1, the process returns to step S 3. Only lower again (in the case of n). For the negative pressure tank 114 that has fallen to the set negative pressure −P1 in 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 are lowered to the set negative pressure -P1, the control device 200 closes all the two-way valves 118 and turns off the negative pressure pump 110. Stop. 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 S <b> 7, the control device 200 issues a suction start instruction for the lower front suction unit 54 in the second step.

  In step S8, the control device 200 brings the inlet and the first outlet of the suction three-way valve 120-6 into a conducting state and closes the second outlet. Then, the internal pressure of the suction space 55 of the lower front suction part 54 is lowered to reach 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 front suction section 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 pressures of the lower front suction part 54 and the negative pressure tank 114-6 are in an equilibrium state. However, the flow resistance factor is excluded. The operation of this equation will be described in detail with a specific example. Note that these numbers are merely examples. If V1 = −80 Kp, the amount of air is 0.2 atm. If the capacity of the negative pressure tank 114-6 is 5 L (liter), 1 L of air (atmosphere) remains. On the other hand, if the volume of the lower front suction part 54 is 1 L, it is atmospheric pressure when the suction three-way valve 120-6 is opened, but the suction surface 57 is shielded by the old new webs W1, W2, When the lower front suction part 54 and the negative pressure tank 114-6 are electrically connected by the suction three-way valve 120-6, the internal pressure of the lower front suction part 54 and the negative pressure tank 114-6 is (1L + 1L) / (5L + 1L) = 2/6. The equilibrium state is maintained at atmospheric pressure, that is, −P2 = about −67 Kp. Accordingly, the set pressure -P1 is determined from the sum of the amount of air and the sum of the volumes of air existing 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 portion 54 is lowered to -P2, the suction of the new web W2 can be executed, and the process proceeds to step S10.

  In step S10, the control device 200 instructs the end of suction at the sixth step, and proceeds to step S11.

  In step S11, the control device 200 closes the inlet of the suction three-way valve 120-7 and brings the first outlet and the second outlet into a conductive state. Thereby, the internal pressure of the suction space 55 of the lower front suction part 54 is increased to the 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 has become the atmospheric pressure, the suction of the new web W2 ends, and the process returns to step S2.

  Note that the operations of steps S6 to S12 are also performed in parallel at the suction start timing and the suction end timing for the suction portions of the system other than the lower front suction portion 54, respectively.

(10) Effect According to the present embodiment, the old web W1 and the new web W2 are overlapped and cut by the cutter 58, and unnecessary before the upper tape 34 is attached to the connecting portion of the old and new webs W1, W2. The old web W1 can be removed by the old web winding body 18.

(11) Modified Example 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, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

W1 ... Old web, W2 ... New web, 10 ... Connection device, 12 ... Upper moving body, 14 ... Lower moving body, 18 ... Old web winding body, 20 ... Upper tape pasting body, 34 ... upper tape, 46 ... cutting device, 58 ... cutter

Claims (9)

An upper body above the transport path of the old web transported in a constant transport direction from upstream to downstream;
A lower body that is below the upper body and fixes a new web across the transport path,
An old web winding body that is rotatably provided on the upper body and has an old web suction portion that sucks the old web, and an upper movement groove portion;
A cutting device provided on the lower body and having a cutter;
Have
(1) In a state where rotation of the old web winding body is stopped, the old web winding body is pressed by the old web winding body in a state where the old web and the new web, which have been stopped, are stacked on the lower main body,
(2) The cutter moves the cutter inside the cutter moving groove, and simultaneously cuts the overlapped old web and the new web,
(3) The old web winding body is rotated, and only the cut old upstream web is sucked and wound by the old web suction section.
Web connection device. It is downstream of the old web winding body, further provided on the upper body so as to be rotatable, and further having an upper tape attaching body having an upper tape,
Rotating the upper tape pasting body, and pasting the upper tape on the upper surface of the connecting portion of the old web and the new web,
The web connecting apparatus according to claim 1. An upper moving body that moves in a direction opposite to the conveying direction;
The upper body is provided on the upper moving body,
Along with the movement of the upper moving body, the old web winding body and the upper tape attaching body rotate while moving,
The web connecting apparatus according to claim 2. (1) In a state where the upper moving body is stopped, the old web wound body is pressed by the old web winding body in a state where the old web and the new web are overlapped on the lower main body, and the cutting device , Moving the cutter inside the cutter moving groove, cutting the overlapped old web and new web simultaneously,
(2) By moving the upper moving body in the opposite direction, the old web winding body is rotated while being moved, and only the cut old upstream web is sucked and wound by the old web suction section. In addition to rotating the upper tape attaching body together with the old web winding body, the upper tape is attached to the upper surface of the connecting portion of the old web and the new web.
The web connecting apparatus according to claim 3. In the old web winding body, the suction surface of the old web suction part is formed on the upstream side of the upper moving groove part,
The web connecting device according to any one of claims 1 to 4. In the upper tape affixed body, a suction surface for sucking the non-adhesive surface of the upper tape is formed,
The web connecting device according to any one of claims 1 to 5. The old web wound body is cylindrical.
The web connecting apparatus according to claim 1. The upper tape affixed body is cylindrical.
The web connecting apparatus according to claim 2. The lower body has a front lower suction part and a rear lower suction part for sucking the new web along the conveyance path,
The cutter of the cutting device moves between the front lower suction part and the rear lower suction part;
The web connecting apparatus according to claim 1.

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