TWI697623B - Negative pressure device - Google Patents

Abstract

The invention provides a negative pressure device that can simply make the negative pressure space negative pressure.

The negative pressure device of the present invention is provided with a negative pressure pump, and the negative pressure pump has a piston that can partition the cylinder into a first space and a second space, and one end of the main connecting pipe is connected to the first space of the negative pressure pump , And the other end of the main connecting pipe is divided into two, one end of the first check valve is connected to one of the branches, one end of the second check valve is connected to the other side of the branch, and the other of the first check valve One end is open to the outside, the other end of the second check valve is connected to one end of the connecting pipe, and the other end of the connecting pipe is connected to the negative pressure groove.

Description

Negative pressure device Invention field

This application is based on Japanese Patent Application No. 2015-124969 (application date: June 22, 2015) and claims the priority of the application. This application refers to the application and contains all the contents of the same application.

The invention relates to a negative pressure device.

Background of the invention

So far, the connecting devices for connecting the new material to the old material are as follows: first, the old material is overlapped with the new material; second, the material holder is clamped before and after the predetermined position; At the cutting point, a cutter is used to cut both the old and new sheets at the same time; fourth, one side uses the suction surface of the sheet holder to attract and hold the rear end of the old sheet and the front end of the new sheet, while removing the old and new Unnecessary parts of the two sheets; fifth, use the suction surface of the sheet holder to attract and hold the rear end of the old sheet and the top of the front end of the new sheet, and attach them with tape (refer to Japanese Patent Laid-Open Publication Nos. 5-246589 and 2005-15145).

In the above-mentioned material connecting device, when connecting, the old material and the new material must be sucked and held in the holder of the material respectively. in When a vacuum pump is used as a pump for this suction, there are problems that the connecting device becomes larger and the cost increases.

Therefore, in view of the above-mentioned problems, the present invention aims to provide a negative pressure device that can perform suction that can easily make the negative pressure space in a negative pressure.

Summary of the invention

The present invention is a negative pressure device, which is characterized in that: a negative pressure pump is provided, and the negative pressure pump has a piston that can partition the casing cylinder into a first space and a second space, and is provided with a In the sliding mechanism in which the piston slides, one end of the main connecting pipe is connected to the first space of the negative pressure pump, the other end of the main connecting pipe is divided into two, and one end of the first check valve is connected to one of the branches Connected, one end of the second check valve is connected to the other side of the branch, and the other end of the first check valve is open to the outside, and the other end of the second check valve is connected to one end of the connecting pipe , And the other end of the connecting pipe is connected to the negative pressure space, and is equipped with a control mechanism, which can execute the following procedures: (1) The first negative pressure procedure, the piston is slid by the sliding mechanism Enlarging the first space, whereby the air in the negative pressure space is sucked through the second check valve, and the negative pressure space is lowered to a negative pressure lower than atmospheric pressure; and (2) a second negative pressure program The sliding mechanism slides the piston to narrow the first space, and discharges the air in the first space from the first check valve to the outside.

According to the present invention, it is possible to easily make the negative pressure space inside the negative pressure.

1‧‧‧Old core

2‧‧‧New core

3, 6, 7‧‧‧Guide roller

4‧‧‧Loading roller

5‧‧‧Exit roller

8‧‧‧Press roller

10‧‧‧Connecting device

12‧‧‧Upper moving body

14‧‧‧Lower moving body

16‧‧‧Upper body

18‧‧‧Old material winding body

20‧‧‧Upper strap attachment

21, 25, 33, 51, 55, 59‧‧‧Attract space

22‧‧‧Upper joint suction part

23, 27, 35, 53, 57, 61‧‧‧Attracting surface

24, 30, 48‧‧‧Rotation axis

26‧‧‧Old Material Attraction Department

28‧‧‧Upper moving groove

32‧‧‧Temporary suction part of upper belt

34‧‧‧Upper strap

36, 36‧‧‧Upper rail

38‧‧‧Upper actuator

40‧‧‧Lower body

42‧‧‧Bottom belt attachment

44‧‧‧New material fixing part

46‧‧‧Cutting device

50‧‧‧Lower belt temporary suction part

52‧‧‧Belt

54‧‧‧Down Front Suction Department

56‧‧‧Under the rear suction part

58‧‧‧Cutter

60‧‧‧Upper and lower components

62‧‧‧Middle actuator

64‧‧‧Upper and lower rail

66‧‧‧End fixing member

68‧‧‧Lower Rail

70‧‧‧Lower actuator

72, 74‧‧‧Press the actuator

76‧‧‧Pinion gear

78‧‧‧Rack

80、82‧‧‧wheel

84‧‧‧Belt

86‧‧‧Frame

88‧‧‧Cutter Support

90‧‧‧horizontal rail

92‧‧‧ spacer

96‧‧‧Lower moving groove

97‧‧‧Division Board

98、99‧‧‧Cut off space

100‧‧‧Suction device

102‧‧‧Dust Attraction Department

104‧‧‧Dust suction port

106‧‧‧Dust suction mouth

108‧‧‧The first check valve

110‧‧‧Negative pressure pump

112‧‧‧Power cylinder

114-1~114-7‧‧‧Negative pressure tank

116‧‧‧Second check valve

118-1~118-7‧‧‧Two-way valve

120-1‧‧‧Suction two-way valve

120-2~120-7‧‧‧Suction three-way valve

122-1~122-7‧‧‧Pressure gauge

123‧‧‧Main connecting pipe

124‧‧‧The first connecting pipe

126-1~126-7‧‧‧Second connecting pipe

128‧‧‧Casing cylinder

130‧‧‧Piston

132‧‧‧First Space

134‧‧‧Second Space

150‧‧‧Negative pressure device

200‧‧‧Control device

W‧‧‧ material

W1‧‧‧Old material

W2‧‧‧New material

Fig. 1 is an overall view showing an initial state of a connection device according to an embodiment of the present invention.

Fig. 2 is an external view of the connection device of the tenth program.

Fig. 3 is a longitudinal sectional view showing the structure of the connecting device.

Figure 4 is the A-A line cross section in Figure 3.

Fig. 5 is a plan view of the lower moving body.

Fig. 6 is an explanatory diagram of the connection device in the first program.

Fig. 7 is an explanatory diagram of the connection device in the second program.

Fig. 8 is an explanatory diagram of the connection device in the third program.

Fig. 9 is an explanatory diagram of the connection device in the fourth program.

Fig. 10 is an explanatory diagram of the connection device in the fifth program.

Fig. 11 is an explanatory diagram of the connection device in the sixth program.

Fig. 12 is an explanatory diagram of the connection device in the seventh program.

Fig. 13 is an explanatory diagram of the connection device in the eighth program.

Fig. 14 is an explanatory diagram of the connection device in the ninth program.

Fig. 15 is an explanatory diagram of the connection device in the tenth program.

Fig. 16 is an enlarged side view of a state in which an old web and a new web are to be cut by the cutting device.

Fig. 17 is a partial unloaded front view of a state in which the cutting device intends to cut the old material and the new material.

Fig. 18 is an explanatory diagram of an upper joining suction part, an old web suction part, an upper belt temporary suction part, a lower belt temporary suction part, a lower front suction part, a lower rear suction part, and a dust suction part.

Fig. 19 is an overall view of the suction device and the negative pressure device.

Fig. 20 is a block diagram of the connecting device.

Fig. 21 is a flowchart of the suction device.

The form used to implement the invention

Hereinafter, the connecting device 10 of the web W according to an embodiment of the present invention will be described based on FIGS. 1 to 21. The connecting device 10 uses a suction device 100, a cutting device 46, and a negative pressure device 150. In addition, "material W" refers to a long-length sheet, such as cloth, paper, film, metal foil, and so on. In addition, in the connecting device 10, the "carry-in side" means the upstream from which the web W is conveyed, and the "carry-out side" means the downstream from which the web W is conveyed.

As shown in FIG. 1, the connecting device 10 shows that the old web W1 wound around the old core 1 is not much left. Therefore, the new web W2 wound around the new core 2 is connected behind the old web W1.

As shown in FIGS. 1 and 2, the old web W1 and the new web W2 are transported in a horizontal transport path. As shown in FIG. 1, the old web W1 passes through the guide roller 3, passes through the carry-in roller 4, passes through the connecting device 10, passes through the carry-out roller 5, passes through the guide roller 6, and is guided to the coating device or the like. On the other hand, the new web W2 wound around the new core 2 passes through the guide roller 7 and passes above the pressing roller 8 provided below the carry-in roller 4, and its front end is fixed to the connecting device 10.

In addition, a pressing roller 9 is also arranged below the unloading roller 5. As shown in FIG. 3, the pressing roller 8 and the pressing roller 9 are moved up and down by pressing the actuators 72 and 74, respectively. The pressing roller 8 and the pressing roller 9 each have a breaking function, and the web W between the pressing roller 8 and the pressing roller 9 is held by the nip of both The tension, interrupts the tension changes received from its upstream and downstream.

(1) Structure of connecting 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 movable body 12 will be described based on FIGS. 3 and 4. The upper movable body 12 is arranged above the old web W1, and is arranged to be freely movable in the horizontal direction. The main body 16 of the upper mobile body 12 (hereinafter referred to as "upper main body") 16 is composed of a used sheet winding body 18, a tape application body 20, and an upper joining suction part 22 from the carrying-in side. The upper body 16 having the old web roll body 18, the upper tape attaching body 20, and the upper joint suction portion 22 is arranged between the left and right pair of upper rails 36 and 36, and the upper actuator 38 makes the upper body 16 moves horizontally along the upper rails 36, 36.

The used web winding body 18 is formed in a cylindrical shape, and is rotated in the conveying direction of the used web W1 by the rotating shaft 24. On a part of the outer peripheral surface of the old web winding body 18, a suction surface 27 of the old web suction part 26 is formed. At the end of the old web suction part 26, an upper moving groove part through which the cutter 58 passes is formed 28. That is, in the vicinity of the upstream side of the upper moving groove 28 provided in the width direction of the used web winding body 18, the suction surface 27 of the used web suction part 26 is formed. The suction surface 27 has a plurality of suction holes opening. 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. The pinion gears 76, 76 are straight and horizontally arranged on both sides of the upper movable body 12. The arranged racks 78 and 78 are screwed and rotated. The racks 78 are supported by a frame 86 for fixing the connecting device 10. Upper rail 36, 36, upper actuator 38, The lower rails 68 and 68 and the lower actuator 70 described later are also fixed to this frame 86. Thereby, when the upper moving body 12 moves, the pinions 76 and 76 will rotate on the rack 78, and the old web winding body 18 will also rotate.

The upper tape application body 20 is formed in a cylindrical shape, and is rotated along the conveying direction of the old web W1 by the rotating shaft 30. A part of the outer peripheral surface of the upper tape attached body 20 is provided with an upper tape temporary suction portion 32. The suction surface 35 of the upper tape temporary suction portion 32 has a plurality of suction hole openings to attract the non-adhesive surface of the upper tape 34. Make it stay temporarily. As shown in FIG. 4, a wheel 80 is provided on one side of the rotating shafts 24 and 24 of the old material winding body 18, and a wheel 82 is also provided on the rotating shaft 30 of the upper tape attached body 20. As shown in FIG. 3, by hanging the wheels 80 and the wheels 82 around the endless belt 84, when the old material winding body 18 rotates, the upper belt attachment body 20 will also rotate in the same direction.

The upper joining suction part 22 is a rectangular parallelepiped having a trapezoidal shape in longitudinal section. The lower surface of the upper joining suction portion 22 is flat, and a suction surface 23 is formed. On the suction surface 23, a plurality of suction hole openings are formed. The suction surface 23 faces the conveying path of the old web W1, and the junction between the old web W1 and the new web W2 is fixed by suction, and the lower tape applicator 42 will stabilize the attachment when the lower tape 52 is attached.化.

(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 arranged below the new web W2, and is arranged to be freely movable in the horizontal direction. The main body (hereinafter referred to as “lower main body”) 40 of the lower moving body 14 is composed of a lower tape applicator 42, a new piece fixing portion 44, a cutting device 46, and an end fixing member 66.

The lower belt attachment body 42 is formed in a cylindrical shape, and the rotating shaft 48 And rotate along the conveying direction of the new blank W2. A lower belt temporary suction part 50 is formed on a part of the outer peripheral surface of the lower belt applicator 42, and the suction surface 53 of the lower belt temporary suction part 50 has a plurality of suction holes opening to attract the non-adhesive surface of the lower belt 52. In addition, although not shown in the figure, pinion gears are provided at both ends of the rotating shaft 48 of the lower belt applicator 42 to be screwed with the rack fixed to the frame to rotate. In this way, when the lower moving body 14 moves, the pinion gear will rotate on the rack, and the lower belt attachment body 42 will also rotate.

The new web fixing portion 44 has a lower front suction portion 54 and a lower rear suction portion 56 facing the conveying path of the new web W2, and the lower front suction portion 54 and the lower rear suction portion 56 respectively suck the new web W2. The suction surface 57 of the lower front suction portion 54 and the suction surface 61 of the lower rear suction portion 56 respectively have a plurality of suction hole openings.

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

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

The lower tape applicator 42, the new piece fixing portion 44, the cutting device 46, and the end fixing member 66 are provided between a pair of left and right plate-shaped upper and lower members 60, 60. In addition, a pair of left and right upper and lower rails 64 and 64 are respectively provided at the front and rear of the lower body 40. The middle actuator 62 moves the left and right pair of upper and lower members 60 along the upper and lower rails 64 and 64 up and down.

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

(2) Cutting device 46

The cutting device 46 capable of cutting the overlapped old web W1 and the new web W2 simultaneously will be described based on FIGS. 16 and 17.

(2-1) Structure of cutting device 46

The structure of the cutting device 46 will be explained based on FIGS. 16 and 17. Between the lower front suction part 54 and the lower rear suction part 56, as shown in FIG. 16, the cutter support part 88 of the cutting device 46 is provided, and the cutter 58 is erected from the cutter support part 88 from this. As shown in FIG. 17, the cutter 58 has a parallelogram plate shape, and it is inclined toward the traveling side of the cutter 58 as it goes upward. The cutter support portion 88 is horizontally moved between a pair of left and right horizontal rails 90 and 90 provided between the lower front suction portion 54 and the lower rear suction portion 56 by a moving mechanism such as a cylinder. That is, it moves along the width direction of the old web W1 and the new web W2. Hereinafter, for ease of description, as shown in FIG. 17, the cutter support portion 88 as the cutter moving mechanism is a mechanism that moves from the left to the right of the old web W1 and the new web W2.

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, a spacer 92 is horizontally attached to the lower movable body 14. The spacer 92 is provided with a passing slit 94 along the left-right direction, and the cutter 58 moves therethrough the slit 94. The spacer 92 is formed of a rubber sheet.

As shown in FIG. 16, the space enclosed by the side surface of the lower front suction part 54, the side surface of the lower rear suction part 56, and the spacer 92, is hereinafter referred to as "lower moving groove 96". Also, the cylindrical space surrounded by the upper moving groove 28 and the old web W1, hereinafter referred to as "cutting space 98", is moved downward by the new web W2 The cylindrical space enclosed by the groove 96 is hereinafter referred to as "cut space 99". As shown in Fig. 17, on the right side of the cylindrical cutting spaces 98, 99, a dust suction unit 102 is installed. The dust suction part 102 is slightly cylindrical, and has an upper dust suction port 104 and a lower dust suction port 106. The left side of the cut-off spaces 98 and 99 is open. In addition, the cut spaces 98 and 99 are divided up and down by the side surface of the lower front suction portion 54 and the partition plate portion 97 extending to the right from the lower rear suction portion 56. When cutting the overlapped old web W1 and new web W2, the air in the cutting space 98 is sucked from the dust suction port 104 above the dust suction part 102, and the cutting space 99 is sucked from the lower dust suction port 106. As shown in FIGS. 16 and 17, the cutter 58 moves horizontally from left to right in the cylindrical cutting spaces 98 and 99 surrounded by the upper moving groove portion 28 and the lower moving groove portion 96.

(2-2) The operating state of the cutting device 46

The operating state of the cutting device 46 will be described based on FIGS. 16 and 17. First, the old web W1 is horizontally sucked and fixed by the lower front suction portion 54 and the lower rear suction portion 56, and a new web W2 is arranged on it, and the old web W1 and the The new blank W2 is fixed in a state of being overlapped and clamped. At this time, the places where the old web W1 and the new web W2 are to be cut are located in the cutting spaces 98 and 99 surrounded by the upper moving groove portion 28 and the lower moving groove portion 96.

Next, the suction two-way valve 120-1 is opened, and the air in the cut-off space 98 is sucked from the dust suction port 104 above the dust suction part 102, and the air in the cut-off space 99 is sucked from the lower dust suction port 106. As shown in Figure 17, the air is drawn from left to right. This is because the cut-off spaces 98 and 99 are left open.

Then, if the cutter support portion 88 is moved along the horizontal rail 90, the cutter 58 will move to the passing slit 94 of the spacer 92, while moving the overlapped old and new pieces W1 and W2 in the width direction Cut off. The dust generated by the cutting is sucked by the dust suction unit 10 and does not adhere to the surface of the old web W1 or the new web W2.

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

Thereby, the cutting device 46 can finish cutting without attaching dust to the surfaces of the old web W1 and the new web W2, and the connecting device 10 can proceed to the next program.

(3) Structure of suction device 100 and negative pressure device 150

Next, the structure of the suction device 100 and the negative pressure device 150 of the connecting device 10 of the present embodiment will be explained based on FIG. 19. The suction device 100 is composed of 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 to 114-7, 1 suction two-way valve 120-1, 6 suction three-way valves 120-2~120-7, 7 pressure gauges 122-1~122-7, dust suction part 102, upper joint suction part 22 , The old web suction part 26, the upper belt temporary suction part 32, the lower belt temporary suction part 50, the lower front suction part 54, and the lower rear suction part 56 are composed of 7 systems. Among them, the negative pressure pump 110, the power cylinder 112, the first check valve 108, the second check valve 116, seven two-way valves 118-1 to 118-7, and seven negative pressure grooves 114- 1~114-7 constitute the negative pressure device 150.

In the negative pressure pump 110, the piston 130 slides in the casing cylinder 128 of the hollow cylinder. The casing cylinder 128 is partitioned into the first space 132 by the piston 130. With the second space 134. The piston 130 slides by the power cylinder 112. One end of the main connecting pipe 123 is connected to the first space 132 of the casing cylinder 128.

The other end of the main connecting pipe 123 is divided into two, one is connected to one end of the first connecting pipe 124, and the other is connected to one end of the second check valve 116. The other end of the first check valve 108 is open to the outside, and the air flow in the first check valve 108 is from the inside of the main connecting pipe 123 to the outside. The other end of the second check valve 116 is connected to one end of the first connecting pipe 124, the other end of the first connecting pipe 124 is divided into seven, and the other ends of each branch are respectively connected to seven two-way valves 118-1~118- 7 one end 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. The other ends of the two-way valves 118-1 to 118-7 are respectively connected to the negative pressure grooves 114-1 to 114-7.

The second connecting pipe 126 is respectively connected to the suction part and the negative pressure groove 114-1 to 114-7 of the first to seventh systems. Moreover, between the second connecting pipes 126-1 to 126-7, 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 respectively provided. Each pressure gauge 122 can measure the pressure in each negative pressure tank 114. In addition, the pressure gauges 122-1 to 122-7 have a function of notifying the control device 200 at a predetermined set pressure together with this pressure measurement. The suction two-way valve 120-1 is connected between the negative pressure groove 114-1 and the dust suction part 102, and the inlets of the suction three-way valve 120-2~120-7 are respectively connected to the negative pressure grooves 114-2~114-7 , The first outlets of the suction three-way valves 120-2 to 120-7 are connected to the suction parts 22, 26, 32, 50, 54, 56 respectively, and the second outlets are respectively opened to the outside.

(4) Operating state of negative pressure device 150

Next, the negative pressure pump 110 provided by the negative pressure device 150 will be described. To bring the negative pressure tank 114 into an operating state where the negative pressure -P1 is set.

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 and second outlets are in conduction, and the two-way The valve 118 is in an open state.

The pressure in the negative pressure tank 114 is atmospheric pressure.

Next, the power cylinder 112 slides the piston 130 of the negative pressure pump to expand the first space 132. Thereby, the negative pressure pump 110 sucks the air in the negative pressure tank 114 through the second check valve 116 and the two-way valve 118. Thereby, the pressure in the negative pressure tank 114 drops from the atmospheric pressure by ΔP. However, since the air flow from the first check valve 108 is in the opposite direction, air is not sucked.

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

Then, the power cylinder 112 slides the piston 130 again to expand the first space 132. Thereby, the negative pressure pump 110 sucks the 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 groove 114 is further reduced by ΔP from the previous negative pressure value.

Next, repeat the above-mentioned actions several times, once decreasing the pressure of ΔP and gradually increasing the negative pressure. When the pressure gauge 122 measures the set negative pressure -P1, the operation of the negative pressure pump 110 and the power cylinder 112 is stopped, and the double The through valve 118 is closed.

Through the above actions, the negative pressure tank 114 can be lowered to the set point Constant negative pressure-P1.

(5) The structure of the suction part

Each suction unit of the seven systems will be described based on FIG. 18.

The first system is the slightly cylindrical dust suction unit 102 described above. The suction body of the dust suction unit 102 is dust. The suction space is the cylindrical cut-off spaces 98 and 99. 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 connecting pipe 126-1 is connected. The upper dust suction port 104 cuts off the space 98 from the upper space enclosed by the old web W1 and the upper moving groove 28, and sucks dust together with the air, while the lower dust suction port 106 cuts off the space 98 from the new web W2. The lower cutting space 99 enclosed by the lower moving groove 96 attracts dust together with air.

The upper joining suction portion 22 of the second system has a suction space 21 and a suction surface 23, and the suction body is a joining portion of 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 connecting pipe 126-2 is connected. The suction surface 23 is formed on the lower surface of the upper joint suction portion 22, and has a plurality of suction hole openings.

The old web suction part 26 of the old web roll 18 of the third system 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 on approximately 1/4 of the outer peripheral surface of the used web roll 18, and has a plurality of suction holes opening. The suction space 25 is provided in the old web roll 18 along the axial direction, has a size corresponding to the suction surface 27, communicates with the suction port provided on the rotating shaft 24, and the second connecting pipe 126-3 is connected thereto Attract mouth.

The upper belt temporary suction part 32 of the upper belt application body 20 of the fourth system has a suction space 33 and a suction surface 35, and the suction body is the upper belt 34. Attraction 35 The upper belt 34 is formed on the outer peripheral surface of the upper belt attached body 20 according to the length of the upper belt 34, and has a plurality of suction hole openings. The suction space 33 has a size corresponding to the suction surface 35, is provided in the upper tape applique 20 along the axial direction, communicates with the suction port provided on the rotating shaft 30, and the second connecting pipe 126-4 is connected to the suction port .

The lower belt attachment body 42 of the fifth system has a lower belt temporary suction part 50 having a suction space 51 and a suction surface 53, and the suction body is the lower belt 52. The suction surface 53 is formed on the outer peripheral surface of the lower belt applique 42 according to the length of the lower belt 52, and has a plurality of suction hole openings. The suction space 51 has a size corresponding to the suction surface 53, and is provided in the lower tape applique 42 along the axial direction, communicates with the suction port provided on the rotating shaft 48, and the second connecting pipe 126-5 is connected to the suction port .

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 opening. The suction space 55 is formed in the lower front suction portion 54 and the second connecting pipe 126-6 is connected.

The lower rear suction part 56 of the seventh system has a suction space 59 and a suction surface 61, and the suction body is a new piece W2. The suction surface 61 is formed on the upper surface of the lower rear suction portion 56 and has a plurality of suction holes opening. The suction space 59 is formed in the lower rear suction part 56, and the second connecting pipe 126-7 is connected.

(6) The suction method of the suction part

Next, a method of sucking the new web W2 by the lower front suction part 54 of one of the seven systems will be explained based on FIG. 19.

In the initial state, the inside of the negative pressure tank 114-6 drops 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 conducting. Therefore, the lower front suction part 54 Since the suction space 55 has a plurality of suction holes opening, it is atmospheric pressure.

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 in a conducting state, and the second outlet is in a closed state, the negative pressure groove 114-6 and the suction space 55 of the lower front suction portion 54 are negative The internal pressure of the pressure groove 114-6 and the internal pressure of the suction space 55 of the lower front suction portion 54 will be in a balanced state. That is, the internal pressure of the negative pressure groove 114 will rise from the set negative pressure -P1 to -P4, and the internal pressure of the suction space 55 of the lower front suction portion 54 will drop from the atmospheric pressure to -P4. In this way, when the internal pressure of the suction space 55 of the lower front suction portion 54 drops to -P4, the new material W2 can be sucked. The timing of this attraction can be immediately corresponded by operating the three-way attraction valve 120-6.

Then, when it comes to the end of the suction of the new web W2, the lower front suction part 54 can be made by closing the inlet of the suction three-way valve 120-6 and the first outlet and the second outlet in a conductive state. The internal pressure of the suction space 55 rises to atmospheric pressure, and the suction ends.

With the above, the suction space 55 of the lower front suction portion 54 can be simply lowered to -P4, and the new material W2 can be attracted.

(7) Electrical structure of the connection device 10

Next, the electrical structure of the connection device 10 will be described based on the block diagram of FIG. 20. The connection device 10 is provided with a control mechanism constituted by a computer, that is, a control device 200. The control device 200 can start conveyance of the old web W1 and the new web W2, convey at a conveying speed, and stop conveying.

The control device 200 is connected with a device that can move the upper movable body 12 The upper actuator 38, the lower actuator 70 that moves the lower moving body 14, the middle actuator 62 that moves the upper and lower members 60 of the lower moving body 14 up and down, the cutting device 46, the pressing actuator 72, the pressing actuator器74. In addition, the control device 200 is connected to 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, and six suction three-way valves 120-2~ 120-7, 7 pressure gauges 122-1~122-7.

(8) Connection procedure of connection device 10

Next, according to FIGS. 1, 2, and FIGS. 6 to 15, the procedure of connecting the old web W1 and the new web W2 by the connecting device 10 will be sequentially described.

First, as shown in FIG. 1, the control device 200 causes the old web W1 wound on the old core 1 to pass through the guide roller 3, the carry-in roller 4, the connecting device 10 under the moving body 12, the carry-out roller 5, the guide The roller 6 is conveyed in a horizontal state. Then, the control device 200 starts the operation of the connecting device 10 when the remaining amount of the old web W1 wound around the old core 1 decreases. In addition, the operator previously causes the suction surface 35 of the upper tape application body 20 to suction the non-adhesive surface of the upper tape 34, and further, the suction surface 53 of the lower tape temporary suction part 50 suctions the non-adhesive surface of the lower tape 52 in advance.

In the first program, as shown in FIGS. 1 and 6, the control device 200 horizontally transports the old web W1 to the position of the carry-in roller 4 and the lower part of the upper moving body 12 and the position of the carry-out roller 5 as described above. On the other hand, the new web W2 is placed above the lower moving body 14 via the pressing roller 8 in the same horizontally arranged state as the old web W1, and is wound around the end of the lower moving body 14 The state of the fixing member 66 is fixed. That is, in this first procedure, the control device 200 transports the old web W1 in the horizontal direction at a constant transport speed. The new blank W2 is parallel to the old blank W1 and stops at the lower position. In addition, the control device 200 uses the upper actuator 38 and the lower actuator 70 to align the upper moving body 12 and the lower moving body 14 in the horizontal direction, so that the old web roll of the upper moving body 12 The upper moving groove 28 of the 18 is located at the position of the cutter 58 protruding from the upper surface of the lower moving body 14. The alignment at this time is to rotate the used web winding body 18 on the surface of the used web W1. Hereinafter, this position is referred to as the "initial position".

In the second program, as shown in FIG. 7, after the control device 200 stops the conveyance of the old web W1, it presses the actuators 72 and 74 to move the pressing rollers 8, 9 upward, and the old web W1 and The new web W2 is clamped and fixed by the carry-in roller 4 and the pressing roller 8, and the carry-out roller 5 and the pressing roller 9. That is, the pressing rollers 8 and 9 respectively pressed into the carry-in roller 4 and the carry-out roller 5 exert a blocking function by nip rolling to block the tension fluctuation of the old web W1 and the new web W2 from upstream, and The tension fluctuation of the old web W1 from the downstream stabilizes the web tension in the connecting device 10. In addition, in the initial position, the control device 200 uses the middle actuator 62 to move the upper and lower members 60 of the lower moving body 14 upward from the standby height, and the control device 200 starts the lower front suction portion 54 of the new blank fixing portion 44 The suction with the lower rear suction part 56 attracts the underside of the new web W2 through the lower front suction part 54 and the lower rear suction part 56.

In the third process, as shown in FIG. 8, the new web W2 is fixed by being attracted by the front suction portion 54 and the lower rear suction portion 56 under the new web fixing portion 44, so the control device 200 is positioned on it. The old web W1 overlaps the new web W2, and is clamped and fixed by the old web winding body 18. In this state, the groove part 28 is located on the cutter due to the moving groove part 28 on the old web roll 18 58 position, so the control device 200 makes the cutting device 46 move the cutter 58 in the width direction of the overlapped old web W1 and the new web W2, and simultaneously cut the old web W1 and the new web in the width direction. Blank W2 Two blanks. However, even if it is cut, the old web W1 and the new web W2 are fixed as described above. Furthermore, in the sequence before the cutter 58 of the cutting device 46 cuts the old web W1 and the new web W2 in an overlapping state, the control device 200 opens the suction two-way valve 120-1 to make dust The upper dust suction port 104 and the lower dust suction port 106 of the suction unit 102 are connected to the right side of the cut spaces 98 and 99. Next, as shown in FIG. 17, the control device 200 uses the dust suction port 104 on the dust suction unit 102 to move from the cylindrical cut space 98 (suction space) surrounded by the old web W1 and the upper moving groove 28, To suck the dust generated by cutting, use the lower dust suction port 106 to suck the dust generated by cutting from the cylindrical cutting space 99 (suction space) enclosed by the new sheet W2 and the lower moving groove 96 . Then, when the cutting ends, the control device 200 stops the dust suction unit 102.

In the fourth procedure, as shown in FIG. 9, in the state where the lower moving body 14 is stopped, the control device 200 uses the upper actuator 38 to only move the upper moving body 12 along the upper rails 36, 36 from the initial position toward the loading side. mobile. The old web roll 18 and the upper tape application body 20 rotate in the counterclockwise direction in FIG. 9 along with the movement of the upper moving body 12. 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 belt 84 will also rotate the upper tape attached body 20.

In the fifth program, as shown in FIG. 10, the control device 200 starts the old The old web suction part 26 of the web winding body 18 is attracted, and the old web winding body 18 rotates in the counterclockwise direction, and the front end of the cut old web W1 will be attracted by the old web suction part 26 attract and wind. Thereby, the upper surface of the new material W2 will be exposed, the front end of the new material W2 will be joined with the rear end of the cut old material W1, and the subsequent upper tape temporary suction part 32 will be pasted by the upper tape 34 Rotate the engagement position. That is, the adhesive surface of the upper tape 34 with the temporary suction part 32 provided on the upper tape application body 20 is pressed from above by the upper tape application body 20 and attached to the cut old web W1. The top of the end and the front end of the new blank W2. When the control device 200 attaches the upper tape 34, the suction of the upper tape temporary suction unit 32 is stopped. Then, the control device 200 continues to move the upper moving body 12.

In the sixth procedure, as shown in FIG. 11, the old web winding body 18 continues to wind the front end of the old web W1, and the upper tape applicator 20 also reverses after attaching the upper tape 34. The direction in which the clock turns. Then, the control device 200 attracts the upper end of the old web W1 to which the tape 34 has been attached and the upper end of the new web W2 through the suction surface 23 of the upper joining suction portion 22, and the control device 200 stops the movement of the upper movable body 12. Up to this state, the control device 200 is fixing the lower movable body 14. After that, the control device 200 will only stop the suction of the new web W2 by the front suction part 54 under the new material fixing part 44, and the lower rear suction part 56 will Continue to attract.

In the seventh procedure, as shown in FIG. 12, the control device 200 engages the suction portion 22 on the upper moving body 12 that is stopped, and attracts the old web W1 and the new web W2 to which the upper tape 34 is attached. In the state of the joint portion, the control device 200 uses the lower actuator 70 to move the lower movable body 14 out along the rails 68 and 68. Move sideways. In this way, the lower belt attaching body 42 of the lower moving body 14 rotates together with the movement of the lower moving body 14, and the lower belt 52 temporarily staying in the lower belt temporary suction part 50 reaches the joining part. When the lower belt 52 reaches the junction, the lower belt 52 is connected to the rear end of the old web W1 and the underside of the front end of the new web W2 through the bonding surface.

In the eighth program, as shown in FIG. 13, the control device 200 keeps the movement of the upper mobile body 12 stopped, and only moves the lower mobile body 14 further toward the unloading side. At this time, since only the suction of the lower front suction portion 54 is stopped, the movement of the lower movable body 14 is held by the rear suction portion 56 (attracting continuing) and the end fixing member 66 under the new sheet fixing portion 44 The cut end of the new material W2 that is in use will leave the cutting position, and the joints of the old material W1 and the new material W2 are arranged. Then, the lower belt temporary suction part 50 of the rotating lower belt applicator 42 will bring the lower belt 52 together to stick across the junction between the back end of the old web W1 and the front end of the new web W2 and rotate. , Press to attach the lower strap 52 to end the connection. After that, the control device 200 stops the suction of the lower belt temporary suction unit 50.

In the ninth program, as shown in FIG. 14, the control device 200 stops the suction of the engaging suction portion 22 on the upper movable body 12, and then performs the lowering of the lower movable body 14 and the lowering of the pressing rollers 8, 9 (that is, , Respectively release the blocking), the upper and lower members 60 of the lower moving body 14 are moved downward to return to the original standby height. Then, in the process, the control device 200 starts to transport the connected new web W2 again. In addition, in order to shorten the time, the control device 200 moves (disengages) the upper and lower members 60 of the lower moving body 14 downward, and the pressing rollers 8, 9 are pinched and released, or the pinch state is maintained to release the resistance between both At the moment of the broken state, the new blank W2 starts to be conveyed again. In addition, due to static electricity caused by the contact between the old blank W1 and the cut end of the new blank, the control device 200 will continue to perform the rear suction part 56 under the new blank fixing part 44 in order not to be affected. The suction is released only when the front end of the remaining unnecessary new web W2 is removed in the 10th program.

In the tenth program, as shown in FIGS. 2 and 15, the control device 200 cancels the suction of the old web suction unit 26 and returns the position of the upper movable body 18 to the initial position. With this action, the front end of the old web W1 that has just been sucked by the old web suction part 26 of the old web winding body 18 will be rewound, and it will be rewound through the carry-in roller 4 and the guide roller 3 The remaining old blank W1 is reversed to the old core 1 and rewinded. In addition, the control device 200 releases the suction of the new web fixing portion 44, and the operator removes the front end of the remaining new web W2 fixed to the end fixing member 66. Then, the control device 200 returns the position of the lower movable body 14 to the initial position, and the rotation position of the second application body 42 also returns to the initial position. Through the above, the connection of the old web W1 and the new web W2 and the remaining processing of the same material are ended.

(9) Suction procedure of negative pressure device 150 and suction device 100

Next, in the negative pressure device 150 and the suction device 100, the procedure for the lower front suction portion 54 to suck the new web W2 will be described based on the explanatory diagram of FIG. 19 and the flowchart of FIG. 21.

In step S1, the control device 200 turns the inlets of all three-way suction valves 120-1 to 120-7 into a closed state, and turns the first outlet and the second outlet into a conductive state.

In step S2, the control device 200 makes all the two-way valves 118 -1~118-7 are in the open state, and proceed to step S3.

In step S3, the control device 200 uses the power cylinder 112 to slide the piston 130 of the negative pressure pump 110 to expand the first space 132 and lower the negative pressure grooves 114-1 to 114-7 by ΔP. Then proceed to step S4.

In step S4, the control device 200 uses the pressure gauges 122-1 to 122-7 to determine whether the negative pressure tanks 114-1 to 114-7 have become the set negative pressure -P1. If all the negative pressure tanks 114-1 to 114 -7 all fall to the set negative pressure -P1, then proceed to step S5 (in the case of y), if it does not fall to the set negative pressure -P1, then return to step S3, and the negative pressure pump 114 drops again △P( n case). In addition, for the negative pressure tank 114 that has fallen to the set negative pressure-P1 among the seven systems, the two-way valve 118 connected to the negative pressure tank 114 is closed.

In step S5, since all the negative pressure tanks 114-1 to 114-7 fall to the set negative pressure -P1, the control device 200 turns all the two-way valves 118 into a closed state and stops the negative pressure pump 110. Then, proceed to step S6.

In step S6, the control device 200 puts the suction of all the suction parts in a standby state, and proceeds to step S7.

In step S7, if it is the above-mentioned second procedure, the control device 200 gives an instruction to start the suction of the lower front suction portion 54.

In step S8, the control device 200 makes the inlet and the first outlet of the suction three-way valve 120-6 a conductive state, and the second outlet is a closed state. In this way, the internal pressure of the suction space 55 of the lower front suction portion 54 drops and becomes an equilibrium state, and the process proceeds to step S11. Suppose the volume of the negative pressure groove 114 is V1, the set pressure is -P1, the volume of the suction space 55 of the lower front suction part 54 is V2, and the suction pressure is -P2, then V1: V2=|-P1|: |-P2| . In addition, the suction pressure -P2 refers to the pressure when the suction three-way valve 120-6 is turned on and the internal pressure of the lower front suction portion 54 and the negative pressure groove 114-6 is in a balanced state. However, the flow resistance factor has been eliminated. A specific example is used to explain the action of this formula in detail. In addition, these figures are only examples. Assuming P1=-80kPa, the amount of air is 0.2 atm. If the capacity of the negative pressure tank 114-6 is 5L (liter), 1L of air (atmosphere) will remain. On the other hand, if the volume of the lower front suction part 54 is 1L, it will be atmospheric pressure when the suction three-way valve 120-6 is opened, but when the suction surface 57 is covered by the old and new pieces W1 and W2, When the lower front suction portion 54 and the negative pressure groove 114-6 are connected by the suction three-way valve 120-6, the internal pressure of the lower front suction portion 54 and the negative pressure groove 114-6 is (1L+1L)/( 5L+1L)=2/6 air pressure, that is, -P2=about -67kPa to maintain a balanced state. Therefore, the set pressure -P1 is determined by the sum of the amount of air existing in the lower front suction portion 54 and the negative pressure groove 114-6 and the sum of the volume.

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

In step S10, if it is the sixth procedure described above, the control device 200 instructs to end the suction, and proceeds to step S11.

In step S11, the control device 200 turns the inlet of the suction three-way valve 120-7 into a closed state, and turns 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 will rise to atmospheric pressure, and it progresses to step S12.

In step S12, since the inside of the suction space of the lower front suction surface Since the pressure is atmospheric pressure, the suction of the new web W2 is ended, and the process returns to step S2.

In addition, with regard to the suction unit of the system other than the lower front suction unit 54, the operations of steps S6 to S12 are also performed in parallel at the respective suction start time and suction end time.

(10) Effect

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 space surrounded by the old web W1 and the upper moving groove 28 The cutting space 98 and the cylindrical cutting space 99 surrounded by the new web W2 and the lower moving groove 96 are connected to the right side of the dust suction unit 102 to attract dust generated by cutting. Therefore, dust does not adhere to the surfaces of the old web W1 and the new web W2.

In addition, according to the negative pressure device 150 of this embodiment, the negative pressure pump 110 can slide the piston 130 multiple times by the power cylinder 112 to lower the negative pressure groove 114 to the set negative pressure -P1, so the structure can be relatively It is simple and can reduce costs. In particular, if the set negative pressure -P1 is set to a value lower than the atmospheric pressure and higher than the medium vacuum -100kPa, for example -80~-60kPa, the pressure in the negative pressure tank 114 can be reduced more easily.

In addition, according to the suction device 100 of the present embodiment, the suction three-way valve 120 is operated to balance the internal pressure of the negative pressure groove 114 and the suction space of the suction unit, whereby dust, old pieces W1, and The new material W2, the upper belt 34, the lower belt 52 and other attracting bodies.

(11) Modification example

In the above embodiment, the groove 28 is moved on the old web roll 18 of the upper moving body 12 and the new one located on the lower moving body 14 The lower moving groove 96 of the web fixing portion 44 forms cylindrical cutting spaces 98, 99, but it is also possible to form cutting spaces 98, 99 with members other than these, and the cutter 58 simultaneously cuts the old Blank W1 and new blank W2.

Furthermore, in the above-mentioned embodiment, 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 reduces the inside of the negative pressure groove 114 to negative pressure. However, it is not limited to this, and other negative pressure spaces may be negative pressure.

In addition, in the above-mentioned embodiment, when the first space 132 of the negative pressure pump 110 is enlarged by the piston 130, the negative pressure in the negative pressure groove 114 is made negative. However, it is not limited to this, and when the second space 134 is enlarged, Alternatively, when the first space 132 and the second space 134 are alternately expanded, the negative pressure in the negative pressure groove 114 is made negative.

In addition, in the above embodiment, the suction device 100 is used in the connecting device 10 using the upper movable body 12 and the lower movable body 14. However, the suction device 100 of this embodiment may be applied instead to a conventional suction device. Structured connection device.

Furthermore, in the above embodiment, the power cylinder 112 is used to slide the piston 130 of the negative pressure pump 110, but a device other than the power cylinder 112 may be used to slide the piston 130.

In addition, in the above-mentioned embodiment, the inside of one negative pressure groove 114 is lowered to the set negative pressure -P1. However, when the suction part needs more suction force, the auxiliary groove can be connected to the negative pressure groove 114, and the The volume V3 of the auxiliary tank is added to the volume V1 of the negative pressure tank 114. Then, the negative pressure pump 110 lowers the inside of the negative pressure tank 114 and the auxiliary tank to the set negative pressure -P1, so that the suction part can obtain a greater suction force.

In addition, in the above embodiment, the negative pressure grooves 114-1 to 114-7 of the seven systems are all connected in parallel by the first connecting pipe 124, but the suction parts of the seven systems may be formed, for example: The first parallel system composed of four suction parts requiring high attractive force, and the second parallel system composed of three suction parts requiring low attractive force, and the first parallel system and the second parallel system. The two parallel systems are connected in parallel to form a main parallel line, and the main parallel piping formed as described above and one negative pressure pump 110 are connected by the first connecting pipe 124.

One embodiment of the present invention has been described above, but this embodiment is an example and is not intended to limit the scope of the invention. These new embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are all included in the scope or gist of the invention, and are included in the invention described in the scope of the patent application and the scope equivalent thereto.

22: Upper joint suction part

26: Old material suction department

32: Upper belt temporary suction part

50: Lower belt temporary suction part

54: lower front suction part

56: Lower rear suction part

100: suction device

102: Dust Attraction Department

108: No. 1 check valve

110: negative pressure pump

112: Power cylinder

114-1~114-7: negative pressure tank

118-1~118-7: Two-way valve

116: 2nd check valve

120-1: Suction two-way valve

120-2~120-7: attract three-way valve

122-1~122-7: Pressure gauge

123: main connecting pipe

124: The first connecting pipe

126-1~126-7: The second connecting pipe

128: Casing cylinder

130: Piston

132: First Space

134: Second Space

150: negative pressure device

Claims (4)

A negative pressure device, characterized in that: a negative pressure pump is provided, and the negative pressure pump has a piston that can partition the casing cylinder into a first space and a second space, and is provided with a piston that can slide the piston In the sliding mechanism, one end of the main connecting pipe is connected to the first space of the negative pressure pump, the other end of the main connecting pipe is divided into two, and one end of the first check valve is connected to one of the branches, One end of the second check valve is connected to the other side of the branch, the other end of the aforementioned first check valve is open to the outside, the other end of the aforementioned second check valve is connected to one end of the connecting pipe, and the aforementioned The other end of the connecting pipe is connected to the negative pressure space part, one end of the two-way valve is connected to the aforementioned connecting pipe, and the negative pressure space part is connected to the other end of the aforementioned two-way valve, and a control mechanism is provided , The following procedures can be performed: (1) The first negative pressure procedure, which expands the first space by sliding the piston by the sliding mechanism, thereby sucking the negative pressure space through the second check valve Air to lower the negative pressure in the negative pressure space to a negative pressure lower than the atmospheric pressure; and (2) the second negative pressure program, in which the sliding mechanism slides the piston to narrow the first space, reducing the pressure in the first space The air is discharged from the first check valve to the outside, and the control mechanism repeats the first negative pressure procedure and the aforementioned In the second negative pressure program, the negative pressure space is lowered to the set negative pressure, and the control mechanism makes the two-way valve open before the negative pressure space drops to the set negative pressure, and when the negative pressure space is When the internal pressure drops to the aforementioned set negative pressure, the aforementioned two-way valve is closed, and the other end of the aforementioned connecting pipe is divided into n pieces (only, n>1). The n connection pipes are connected, the n negative pressure space portions are respectively connected to the other ends of the n two-way valves, and the control mechanism is lowered in each negative pressure space portion to before the set negative pressure. , The two-way valves are respectively opened, and when the negative pressure space drops to the set negative pressure, the two-way valves are respectively closed. Such as the negative pressure device of claim 1, wherein the aforementioned sliding mechanism is a power cylinder. The negative pressure device of claim 1, wherein the negative pressure space portion is a negative pressure groove. Such as the negative pressure device of claim 1, wherein the aforementioned set negative pressure is a pressure lower than atmospheric pressure and higher than -100kPa.

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