JPS6323404B2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a fluid propulsion device using fluid.
In particular, it relates to a fluid propulsion device suitable for moving an adhesive applicator along the end edge of a roll of sheet material, such as rolled roll paper, for adhering the end of the roll to the roll (main body). .

Prior Art When winding a sheet material into a roll, there are various methods for treating the ends of the material. One method is to apply adhesive along the end edge of the sheet material and then roll it. There is a way to attach it to the main body.
In this case, the adhesive is generally applied by moving an adhesive applicator along the end edge of the sheet material. It is preferable to perform this bonding work as quickly as possible when considering the flow of the entire roll manufacturing apparatus. Moreover, since the gluing work is continuously and repeatedly performed, it is desired that the structure of the mobile propulsion device be as simple as possible and less prone to failure. However, no device has been developed to date that fully satisfies these requirements.

OBJECT OF THE INVENTION An object of the present invention is to provide a propulsion device that satisfies the above requirements.

Structure of the Invention That is, the propulsion device according to the present invention includes a support frame (indicated by reference number 1 in the embodiments described below), and a support frame attached to the support frame so that pressurized fluid can be introduced from both ends. a supply conduit device (in the same example, using pressurized air as the pressurized fluid) for introducing pressurized fluid into both ends of the tube device (indicated by the reference numeral 24 in the same example); The supply conduit device is an air conduit device 42.
(implemented as), and a discharge device (in the same embodiment, operated to selectively discharge each of the above-mentioned ends to the atmosphere).
a movable platform device operatively engaged with the tubing device and mounted on the support frame for movement between said ends in response to the introduction of pressurized fluid into the tubing device; (indicated in this embodiment by the reference numeral 48); and relating to a supply conduit arrangement and a discharge arrangement, for introducing pressurized fluid in the supply conduit arrangement into a selected end of the ends and simultaneously at the selected other end. An acceleration control device (in the same embodiment, acceleration solenoids 96, 98 and a circuit controlled therefor) for causing accelerated movement of the movable platform device from the one end to the other end by discharging fluid through a discharge device from the ); and a deceleration control device that selectively limits fluid discharge from the other end in relation to the ejection device to decelerate the movement of the movable platform device toward the other end. (In the same embodiment, it is implemented as one consisting of deceleration solenoids 97 and 99 and a circuit for controlling them), the above-mentioned both ends are the first and second pipe ends, and the above-mentioned supply conduit A first device coupled to the supply conduit device to interrupt pressurized fluid flow to the first and second tube ends.
a supply valve movable between a supply position for introducing pressurized fluid into the first pipe end, a second supply position for introducing pressurized fluid into the first pipe end, and a third supply position for introducing pressurized fluid into the second pipe end; a device (in the same embodiment, the supply valve 54);
The discharge device has a first discharge position that blocks communication between the first and second pipe ends and the atmosphere in relation to the discharge device, and a second discharge position that communicates the second pipe end with the atmosphere. , a discharge valve arrangement (indicated in this embodiment by the reference numeral 58) movable between the first pipe end and a third discharge position communicating with the atmosphere, the acceleration control device including a supply valve arrangement; The discharge valve device is in the first discharge position when the supply valve device is in the first supply position, and the discharge valve device is in the second discharge position when the supply valve device is in the second supply position.
a discharge position, the discharge valve assembly being in a third discharge position when the supply valve assembly is in the third supply position, the discharge valve assembly being in a first discharge position relative to the first pipe end; A first check valve (indicated by reference numeral 91 in the same embodiment) movable between a closed position that blocks communication between the pipe end and the atmosphere and an open position that communicates the first pipe end with the atmosphere. a second tube end movable in relation to the second tube end between a closed position that blocks communication between the second tube end and the atmosphere and an open position that communicates the second tube end with the atmosphere; 2 check valves (indicated by reference numeral 92 in the same embodiment), and the discharge valve device closes the first and second check valves in response to the first discharge position. a device for flexibly pressing into position; and a second check against the action of the pressing device in response to forcing fluid out of the second tube end in response to a second ejection position. A device for moving the valve from a closed position to an open position (implemented in this example as a discharge conduit 94) and a means for forcing fluid out of the first tube end corresponding to a third discharge position. and a device for moving the first check valve from the closed position to the open position against the action of the pushing device (in this example embodied as a discharge conduit 93). shall be.

Functions and Effects of the Invention The propulsion device according to the present invention is configured as described above, and includes a supply conduit device that introduces pressurized fluid to both ends of the pipe device, and a supply pipe device that selects pressurized fluid from both ends of the pipe device to the outside. The discharge devices for discharging the fuel are each provided independently, and an acceleration control device and a deceleration control device are combined therewith.

Therefore, when moving a movable platform device on a pipe device, the movable platform device is first rapidly accelerated by the action of the acceleration control device, and when the movable platform device has moved a predetermined distance, the deceleration control device is activated. It can be controlled to slow down and stop. Furthermore, since the movable part of the propulsion device does not include a complicated mechanism, failures are unlikely to occur, making it very suitable as a propulsion device such as the above-mentioned roll end bonding device.

It should be noted that there are conventionally known article transfer devices that utilize a fluid similar to the present invention. For example, Japanese Patent Application Laid-Open No. 50-95956 discloses a configuration in which pressurized fluid is introduced from one end of a flexible hose and fluid is discharged from the other end, and a transfer device engaged on the hose is connected to one end of the flexible hose. Discloses an apparatus for driving from one end to the other end. However, in this device, both ends of the hose are connected to a source of pressurized fluid and a reservoir through a single 3-position 4-way valve, and therefore, when driving the transfer device as in the present invention, It is not possible to properly control acceleration and deceleration.

Therefore, the present invention can produce superior effects compared to such conventional devices.

EXAMPLES The present invention will be explained below based on an example in which the present invention is applied to an apparatus for bonding the end edge of a roll of sheet-like material to a roll body.

The device 32 shown in FIG. 1 is a device that receives a roll 30 of sheet material and discharges the roll 30 after adhering the end 31 of the sheet material to the body of the roll 30. This device can handle various sheet materials viz.
Although it can be used with cloth, synthetic resin sheets, and metal sheets, the illustrated example is described as an apparatus for adhesively finishing the ends of rolled paper products, such as toilet paper rolls. As can be seen from the following description, the fluid propulsion device according to the present invention includes the device 3
It has been implemented as a device for promoting the adhesive application device in No. 2.

The device 32 has a support frame 1 and a supply table 2 and a delivery table 12 attached to the frame. A roller arrangement 34 is provided between the supply table 2 and the delivery table 12, which moves the paper roll 30 about its longitudinal axis.
The end of the paper is rotated in a direction that wraps it around the roll body.

The roller device has a first drive roller 3 rotatably supported on a support frame 1 and a motor 4 which drives the roller 3 in rotation via chain or belt transmission means 5 . The roller device further includes a first drive roller 3 and a supply table 2.
a second drive roller 6 parallel to the first drive roller 3 between the rollers 6 and 6;
is a transmission device which is rotatably supported by two support arms 7 attached to a shaft 8 bearing on a support frame, and has a chain sprocket or pulley 36 and a chain or belt 11 that rotate around the shaft. It is rotationally driven by a motor 4 via 10. Operation of the motor 4 thus causes both the first roller 3 and the second roller 6 to rotate counterclockwise, and the roll 30 on the rollers 3 and 6 to rotate clockwise, or wind, as shown by the arrow in FIG. Rotate in the picking direction.

While the roll 30 rotates on the rollers 3, 6,
The end 31 of the roll is unwound by the blowing nozzle 14. As shown in FIG. 1, the supply table has blowing nozzles 14 spaced apart from each other along the longitudinal direction.
As shown in FIG. 10, from an air supply source to a conduit 42,
Compressed air passes through the normally closed air valve 44 to the blowout nozzle 1
4. If the air valve 44 is set to the open position using the solenoid 46 or the like, compressed air will flow to the blowout nozzle 1.
4.

If compressed air is supplied from the blow-off nozzle 14 while the roll 30 is rotating, as shown by the dotted line in FIG.
The compressed air flow causes the end 31 to separate from the roll 30. The end 31 is unwound from the roll 30 and
The position is on the sending table 12 as indicated by the dotted line in the figure.

Due to the rotation of the rollers 3, 6, the end 31 on the delivery table 12 is again wound into the roll 30. However, in order to supply the adhesive at a precise location on the end 31, the rotation of the rollers 3, 6 is stopped when the end 31 reaches the desired position on the delivery table, and the adhesive applicator 40 is moved to the stationary end. Apply adhesive on 31. In the illustrated embodiment, the adhesive applicator 40 includes an adhesive gun 15 mounted on a movable carriage assembly 48 that moves horizontally above the delivery table.
have.

As shown in FIG. 10, the adhesive gun 15 communicates with the compressed air supply conduit 42 through a normally closed air valve 50, which, like the air valve 44, is brought into the open position by a solenoid 52 or the like. Glue gun 15 communicates with a source of adhesive, and when valve 50 is in the open position, adhesive is pneumatically forced from gun 15 and applied to distal end 31. Using the required adhesive nozzle, it can be applied as a spray of adhesive or as a line of adhesive.

In the embodiment shown in FIGS. 1 and 2, the sending table 1
The movable platform device is provided with two beams 22 and 23 attached to the support frame 1 above the beams 22 and 23. beam 22,
23 extends parallel to the rotation axes of the first and second drive rollers 3,6. The movable chassis 17 is connected to the beams 22 and 23 by two sets of freely rotating rollers 18,
19; movably supported by 20, 21. Second
As shown in the figure, rollers 18, 19; 20, 21
The rotational axes of are at right angles to each other. With this configuration, the movable chassis 17 does not move in the vertical and lateral directions with respect to the longitudinal direction of the beam. However, the carriage chassis is free to move back and forth on the delivery table 12 along the beams 22, 23 and thus move back and forth over the paper end 31 onto the delivery table 12. As shown in FIG. 1, an adhesive gun 15 is mounted below the movable chassis 17 by means of a bracket 16.

The movable chassis 17 is preferably driven by pneumatic pressure along the beams 22 and 23 because it is desirable to operate at high speed. Typically, the tube arrangement 24 is mounted on the frame 1 between the beams 22,23. As shown in FIGS. 2 and 10, each end of the tube system 24 is connected to a separate source of compressed air via an air supply conduit 42 and a normally closed valve 54, and an exhaust system 56 connects each end of the tube 24 to a normally closed valve 54. 58
They are individually communicated with the atmosphere through the This controls separate airflow to each end of the tube arrangement 24.

In the example shown in FIG. 2, the pipe device 24 is in the shape of an airtight hose made of an elastic material such as rubber, and the movable chassis 17 has pinching rollers 25, 2 disposed close to each other.
6 to sandwich a part of the hose 24 and block the flow of compressed air within the hose. When compressed air is supplied to one end of the airtight hose 24 through the valve 54, the expansion of the hose 24 causes the movable chassis 17 to move toward the other end. At this time, the amount of the other end of the hose 24 discharged into the atmosphere is adjusted by the exhaust device 56. If we sharply restrict emissions to the atmosphere at this end,
The velocity of the carriage chassis 17 toward this end decreases rapidly. Thus, the beam 2 of the chassis 17
2 and 23 can be effectively controlled.

Other embodiments of the movable platform device 48 are shown in FIGS. 3 and 4. In this example horizontally spaced beams 22,
23, a guide member 64 is provided which is integrally fixed to upper and lower support beams 62, 63 which vertically space the chassis 17 apart. The hose 24 is attached to the upper and lower beams 6
2, 64, and 2 as in the example in Figures 1 and 2.
The hose 24 is sandwiched between two rollers 25 and 26. Chassis 1 along the upper and lower support beams 62 and 63
Acceleration and deceleration in step 7 is performed using air pressure as described above.

The core 66 shown in FIG. 5 can be provided along the entire length of the hose 24, and can also be applied to FIGS. 1-4. Between the upper and lower ends 68 and 70 of the core 66, the hose 2
4 allows it to be expanded. The core 66 is formed with a symmetrical, inwardly concave side wall 72. Correspondingly, the outer surfaces of the pinching rollers 25 and 26 are also convex and cooperate with the side wall 72 to sandwich the hose 24 airtightly. The core may be made of a solid material such as synthetic resin or aluminum, or may be an elastic member made of a molded bag filled with compressible fluid.

The core 66 minimizes deformation of the hose 24 when the rollers 25, 26 pinch it. The contact portion between the pinching rollers 25 and 26 and the hose 24 is the hose 2
4 and the outer end 6 of the hose 24.
8,70 will not be deformed or pinched. Therefore, the space between the pinching rollers 25, 26 and the hose 24 becomes a low-friction interface during operation, and deterioration of the hose 24 due to deformation between the rollers 25, 26 is particularly likely to occur at both ends 68, 7.
It becomes significantly less at 0.

After applying the adhesive to the end 31, the first and second drive rollers 3, 6 are rotated again, the adhesive applied end 31 is rolled into the roll 30, and the discharge device 9
The roll 30 is ejected from the device 32 by.

The ejection device can have various constructions, but in the example shown in FIG. 1, a support arm 7 carrying a second drive roller is operatively connected to a pneumatically actuated cylinder 9. The actuating cylinder 9 communicates with the supply conduit 42 through a normally closed valve 74 as shown in FIG.
The valve 74 is brought into the open position by a solenoid 76 or the like, similar to the valves 44 and 50 described above.

When the valve 74 is in the open position, the actuating cylinder 9 is actuated and the support arm 7 is rotated clockwise about the shaft 8. As the second roller 6 rotates relative to the first roller 3, the paper roll 30 is released from the rollers 3, 6 and onto the delivery table 12. When the valve 74 returns to the closed position, the actuating cylinder retracts and the second roller 6 returns to the position shown in FIG.

Next, the operation of the device will be explained.

The mechanical, pneumatically actuated portions of apparatus 32 described above operate in response to electrical control circuits shown in FIGS. There are three operating stages.

The first operation stage is a terminal positioning stage, in which a roll 30 of paper or the like is supplied from a winder or the like (not shown) to the supply table 2, and the first and second rollers 3,
It starts when you roll into the upper position. The roll 30 rotates and the air blowing nozzle 14 blows compressed air to raise the end 31 of the roll 30 into position above the delivery table. When the end reaches a predetermined position on the delivery table, the motor 4 is stopped and the rotation of the roll 30 is stopped.

The terminal adhesive application stage is now started as the second operation stage, and the adhesive gun 15 attached to the movable base is activated.
is pneumatically actuated to move perpendicular to the delivery table and apply adhesive to the stationary end pull.

The third operating stage is the end winding and discharging stage;
The rotation of the paper roll 30 is resumed and the adhesive coated end 31 is wound onto the roll 30, after which the discharge cylinder 9 is actuated to transfer the roll 30 to the roller 3,
6. Drain from the top.

The end positioning step will now be described.

Lines 1 through 10 of FIG. 6 illustrate an embodiment of a control circuit for precisely positioning the unwound end 31 of roll 30 on delivery table 12 in a position ready for adhesive application.

Press the operation start button to activate the main control relay MCR.
is energized and power is supplied to all control circuits. In particular, power is supplied to the roller drive motor 4 through three normally closed contacts R3a, R5a, R7a shown in line 7.

The power is further supplied to three sensors 13a, 13b, 13
c (Fig. 1). The sensor is, for example, a photovoltaic cell. A photovoltaic cell typically has a built-in light source that emits light and a photovoltaic cell that detects the reflection of light from objects passing through it.

The photovoltaic cell 13a has one photovoltaic cell unit PC1, which is placed between the two driving rollers 3 and 6 shown in FIGS.
6 is the position where the presence of the paper roll 30 is detected. The photovoltaic cell PC1 operates the contact X6 as shown in line 2 in FIG. 6, and when the light from the light source of the photovoltaic cell PC1 is not reflected from the object, the contact X6 is open, and the light beam from the light source of the photovoltaic cell PC1 is reflected from the object. When this happens, contact X6 is closed.

The photovoltaic cell 13b is also a set of photovoltaic cells.
Drive rollers 3 and 6 having a PC 4 and shown in FIG.
When the end 31 of the roll 30 is blown up from the roll 30 and moved toward the delivery table, the light beam from the photocell 13b is temporarily interrupted. The photovoltaic cell 13b operates the contact X4 shown in line 4 in FIG. 6. When the light beam from the photovoltaic cell 13b travels straight, the contact X4 is open, and when the light beam is blocked by an object, the contact X4 is closed. Become.

Photovoltaic cell 13c has a single photovoltaic cell unit PC5 located slightly behind delivery table 12, as shown in FIGS. 1 and 8, to detect the presence of terminal end 31 on delivery table 12. Photovoltaic cell PC5 operates contact PC5 shown at line 5 in FIG. Unlike normally open contacts X6 and X4, contact PC5 is a normally closed contact. Contact PC5 opens only when photovoltaic cell PC5 is activated and the light beam is blocked by an object.

The operation of the circuit shown in lines 1-10 of FIG.
Start with the roll 30 in the dotted line position in FIG. 1 above the drive roller.

The light beam of photocell PC1 is blocked, and contact X6
is closed. Closed contact X6, normally closed contact R
14, relay YO is energized via R9a.
Relay YO closes contact YO. This closed circuit operates the solenoid 46.

As described above with reference to FIG. 10, solenoid 4
6, the valve 44 is moved from the normally closed position to the open position, and compressed air is blown out from the blowout nozzle 14. Therefore, the end 31 of the roll 30 is blown up a short time after it starts rotating on the rollers 3 and 6.

The terminal end 31 temporarily blocks the light beam of the photocell PC4 while moving towards the delivery table. Therefore,
Contact X4 is closed, and relay YP is energized via normally closed contact R9a and closed contacts YO and X4. When relay YP is energized, contact YP is closed and photovoltaic cell PC5 is activated. At this time, the end 31 is on the delivery table 12.

The photovoltaic cell PC5 is activated and the light beam is blocked by the terminal end 31, so that the normally closed contact PC5 is opened. The drive rollers 3, 6 continue to rotate, the roll 30 rotates in the winding direction, and the end 31 is wound onto the roll 30 on the delivery table 12. When the terminal end 31 is in a state where it does not shield the photovoltaic cell PC5,
Contact PC5 returns to the closed position. Relay CR3 is a contact
It will be energized after YO and PC5.

When relay CR3 is energized, normally closed contact R3a
is open, and normally open contact R3b is closed. As shown by line 7 in FIG. 6, the power supply to the motor 4 is cut off by opening the contact R3a, and the rotation of the roll 30 by the drive rollers 3 and 6 is stopped.

By means of the above-mentioned control circuit, in particular the photovoltaic cells PC4,
The PC5 is interconnected by an interconnection circuit which enables the photovoltaic cell PC5 to actuate the paper roll even if the light beam of the photovoltaic cell PC5 is unexpectedly blocked by some object before the terminal end 31 reaches the delivery table 12. 30 will not be stopped. Because photocell PC5
This is because it is normally in an inactive state and becomes active at the time when only the presence of the end 31 on the delivery table 12 is detected. Thus, photocell PC5
will not operate unexpectedly, and the rotation of the roll 30 will not stop unexpectedly.

The arrival of the end 31 of the roll 30 on the delivery table 12 may be delayed, and in this case, the activation of the photovoltaic cell PC5 by the relay YP is delayed.
before the end 31 arrives on 2. In this case, there is a normally closed contact PC5 and a closed contact YP in series with it.
energizes relay CR3 and cuts off the current to roller drive motor 4. As a result, rotation of the roll 30 is stopped even if the end 31 is not at the required position on the delivery table 12.

In order to prevent the photovoltaic cell PC5 from operating before the terminal end 31 is on the delivery table 12, a timer unit TD5 indicated by a dotted line on line 4 in FIG. After a predetermined period of time, relay YP is energized. Inserting this delay time prevents photovoltaic cell PC5 from energizing before terminal end 31 reaches delivery table 12.

FIG. 7 shows another embodiment of the control circuit for the end positioning stage, in which similar parts to the embodiment of FIG. 6 are designated by the same reference numerals.

Similar to the first embodiment, this embodiment has a photovoltaic cell 1
One photovoltaic cell unit PC1 of 3a is located between the drive rollers 3 and 6. However, photocell 13b
is omitted, and the photovoltaic cell 13c is composed of two photovoltaic units.
As shown in FIG. 11, both ends of the delivery table 12 are positioned slightly below the surface of the delivery table 12.
31b is detected.

As shown in line 4a in FIG. 7, each photovoltaic cell PC2, PC3 has contact points X7a, X7b,
Activate contacts X8a and X8b of photovoltaic cell PC3.
When the light beam of photovoltaic cell PC2 or PC3 is not blocked, contact X7a or X8a is open;
b or X8b is closed. Photocell PC2 or PC3
is shielded, the opening and closing of the contacts will be reversed, contacts X7a and X8a will be closed, and contacts X7b and X8b will be closed.
will be open.

Assume that the end 31 of the roll 30 is blown up and onto the delivery table 12. Photocell PC2, PC3
is shielded, contacts X7a and X8a are closed, and contacts X7b and X8b are open. Closed contact X7
a, X8a, YO, relay via normally closed contact R9a
CR2 will assist. When relay CR2 is energized, contact R2 is closed, and as shown by lines 8 and 9 in FIG. 7, relay CR15 is energized and contact R15 is closed.

The drive rollers 3, 6 drive the paper roll 30 in the winding direction, and the end 31 is drawn towards the roll 30 over the delivery table 12. Terminal 31 is a photocell
If the position does not shield PC2 and PC3, contact X
7a, X7b, X8a, X8b are reversed and the contact point
7a and X8a are open, and contacts X7b and X8b are closed.

Closed contacts X7b, X8b, YO, R1
5. Relay CR3 is energized via normally closed contact R9a. As described above, by energizing relay CR3, normally closed contact R3a is opened, normally open contact R3b is closed, and power to motor 4 is cut off.
(See line 4a and line 7 in Figure 7) For photocells PC2 and PC3, contacts X7a and
8a is connected in series, and contacts X7b and X8b are connected in series. Thereby, the continuation of the electrical action of the circuit in line 4a of FIG.
It is necessary that light beams a and 31b pass through the light beams of photocells PC2 and PC3 at the same time. Outer edge 3 of distal end 31
1a and 31b are torn, resulting in unevenness as shown by the chain line in Figure 11, and the photovoltaic cells PC2 and PC
When one or both of 3 are not shielded, roll 3
No signal is generated to stop the rotation of 0. Thus, the end 3 of the roll 30 is activated by the photocells PC2, PC3.
1 senses that it cannot be bonded.

In the embodiments of FIGS. 6 and 7, roll 3
When the rotation of 0 has stopped, the end 31 is in a predetermined position on the delivery table 12. Thus, the adhesive is necessarily applied at a predetermined distance from the outer end of the distal end 31.

The terminal adhesive application step will be explained.

Lines 11-18 in FIG. 6 show the control circuitry for applying adhesive to the distal end 31, and FIGS. , 23 or the beams 62, 63 shown in FIGS. 3 and 4.

Relay CR2 is energized at the same time as relay CR3 is energized as indicated by line 5 in FIG. In the embodiment shown in line 4a of FIG. 7, relay CR2 is energized when terminal end 31 reaches above delivery table 12 and blocks photocells PC2, PC3. In any embodiment,
Relay CR2 is energized by closing contact R2 and energizing relay CR15 shown on line 8 in FIGS. 6 and 7. When relay CR15 is energized, contact R15
closes.

When contact R15 is closed, solenoid 52 on line 11 in FIG. 6 is energized. As shown in FIG. 10, actuation of solenoid 52 moves valve 50 from a normally closed position to an open position and compressed air flows to adhesive gun 14 to pneumatically force adhesive.

At the same time, the carriage chassis 17 pneumatically moves over the delivery table 12 and the adhesive pneumatically extruded from the adhesive gun 14 is applied along the longitudinal length of the stationary end 31.

As shown in FIG. 10, air valve 54 can be moved to three positions. The first or center position does not supply compressed air to either the left or right end of the hose 24.
The second or right position directs the compressed air to the right conduit 78.
The normally closed check valve 80 is opened to supply the water to the right end of the hose 24. In the third or left position, compressed air is supplied to the left end of hose 24 through left conduit 82 and normally closed check valve 84 .

The discharge valve device 58 connects the left and right ends of the hose 24 individually to the atmosphere. Although various arrangements can be used, in the embodiment of FIG. 10, the left and right ends of hose 24 are evacuated separately via exhaust conduits 86, 88 and respective exhaust valves 87, 89. Each discharge valve 87, 89 has a steady fully open position where the end of the hose 24 is freely communicated with the atmosphere, and an orifice 90 that throttles the end of the hose 24.
It is movable between the partially open position and the partially open position where it is discharged to the atmosphere through the air.

Normally closed check valves 91 and 92 are inserted between both ends of the hose 24 and the exhaust valves 87 and 89 to prevent the left and right ends of the hose from being exhausted to the atmosphere in a steady state. In response to passage of air within the second exhaust conduits 93, 94, the check valves 91, 92 open to vent the hose end. In response to the proximity of carriage chassis 17 to one hose end, an air flow is created in conduits 93, 94 as air retained within that end is vented.

In the above configuration, the acceleration solenoids 96,9
8 is operatively coupled to supply valve 54 and electrical control circuitry in lines 15 and 16 of FIG.
is accelerated to the left and to the right. Correspondingly, the right side discharge valve 87, the left side discharge valve 89 and the sixth
Deceleration solenoids 97 and 99 are operatively coupled to electrical control circuits in lines 17 and 18 to selectively control the exhaust of the respective hose ends to control acceleration solenoids 96 and 99, respectively.
98 is decelerated.

As shown in Figure 9, four sets of known proximity switches
PS1, PS2, PS4, and PS5 are arranged along the traveling path of the movable chassis 17 at positions close to the hose 24. Proximity switches PS1 and PS2 are arranged at the right and left ends of the hose 24. Proximity switch PS
4 is located close to the switch PS2 on the left side of the hose 24, and the proximity switch PS5 is located close to the switch PS1 on the right side of the hose 24. proximity switch
PS1, PS2, PS4, and PS5 are connected to their respective electrical contacts, as shown in lines 12 to 18 in FIG.
They are inserted into the control circuit as contacts X9, X10, X12, and X13. Contacts X9, X10, X12, X1
3 is normally open, and when the movable base chassis 17 approaches any proximity switch, that proximity switch closes its contact.

In explaining the operation of the control circuit shown in lines 11 to 18 in FIG. 6, first, it is assumed that the movable carriage chassis 17 is located at the right end of the hose 24, that is, near the proximity switch PS1. Contact X9 is closed, and relay CR5 in line 13 of FIG. 6 is energized via closed contact X9, contact R3b closed by relay CR3 energized during the end positioning stage, and normally closed contact R9a. Normally closed contact R5a is activated by relay CR5.
is open, and the normally open contact R5b is closed.

When contact R5a is opened, relay CR3 shown by line 6 in FIG. 6 is opened, contact R3a is in a normally closed position, and contact R3b is in a normally open position. Contact R5
Since contact R3a is open, the roller drive motor 4 on line 7 in FIG. 6 remains open even if contact R3a is closed.

When contact R5b is closed, acceleration solenoid 96
As shown in line 15 in FIG. 6, the closing contact R5b,
It is energized via normally closed contact R10. The supply valve 54 moves from the center position to the right position, and compressed air is supplied to the hose 2.
4 through a conduit 78 and a check valve 80. Since the movable chassis 17 is located at the right end of the hose 24, compressed air is supplied to the right end of the hose 24, causing the hose 24 to expand and the movable chassis 17 to accelerate from the right end to the left end.

Relay CR15 shown in line 9 in FIG.
during the movement of the movable chassis 17.

While the movable chassis 17 moves toward the left end of the hose 24, the proximity switch PS4 shown in FIG. 9 is operated to close the contact X12. As shown by line 17 in FIG. 6, this energizes the deceleration solenoid 99 via the closed contact X12 and the normally closed contact R7a.
Furthermore, relay CR10 is energized to open normally closed contact R10.

Activation of the deceleration solenoid 99 moves the left side discharge valve 89 from the fully open position to the throttle position. The free flow of exhaust air through conduit 94, left check valve 92, and left exhaust valve 89 is throttled from free flow by orifice 90, creating a back pressure or pneumatic cushion on the left side of hose 24.

At the same time as the deceleration solenoid 99 is activated, the normally closed contact R10 cuts off the current to the acceleration solenoid 96 as indicated by line 15 in FIG. 6, and the supply valve 54 returns from the right position to the center position. hose 2
The compressed air flow to the right side of 4 is stopped.

Thus, the acceleration motion is stopped by creating a back pressure that stops the acceleration of the carriage chassis 17 toward the left end of the hose 24 and by stopping the flow of compressed air to the right side of the hose 24. The movable chassis 17 is rapidly decelerated. A normal shock absorber can also be placed at the left end of the hose 24 to absorb shock.

Movable chassis 17 on the left side of the hose 24
operates the proximity switch RS2 shown in FIG. 9 and closes the contact X10. This opens relay CR5 on line 12 in FIG. 6, closes contact R5a, and opens contact R5b. Relay for line 9 in Figure 6
CR15 is opened, opening contact R15 and opening solenoid 52 to stop extrusion of adhesive from gun 15.

Closing of relay CR5 immediately causes relay CR3 of line 6 in FIG. 6 to open, opening contact R3b. The electrical sequence shown at line 13 in FIG. 6, sensing the position of carriage chassis 17 at one end of hose 24 and accelerating chassis 17 toward the opposite end, occurs only once during the end adhesive application step. Thus, in one step the chassis 17 moves over the end 31 only once.

The movement of the movable chassis 17 from the left end to the right end of the hose 24 follows the same electrical sequence as described above, but the activated relays and the like are different. Shashi 1
When 7 is on the left end of hose 24, the proximity switch
PS2 is activated, closing contact X10 and energizing relay CR7 on line 13 in FIG. relay CR
7 is energized, the normally closed contact R7a becomes open and the normally open contact R7b becomes closed. Contact R7b is closed at the sixth
The acceleration solenoid 98 in line 16 is actuated to move the supply valve 54 from the center position in FIG. 10 to the left position. Compressed air enters the left end of the hose and propels the chassis 17 to the right.

When the chassis 17 is accelerated to the right, the proximity switch PS5 shown in FIG.
Energize as shown in figure line 18. The right exhaust valve 87 is shifted to the throttle exhaust position, and at the same time the acceleration solenoid 98 is opened. The chassis 17 is rapidly decelerated, and a shock absorber (not shown) absorbs the impact near the right end of the hose.

By operation of the circuit described above, a single line of adhesive is rapidly applied to the distal end, a process which takes place within a short time after the distal end 31 is positioned on the delivery table 12.

The end winding and discharging stage will be explained.

Lines 19-26 in FIG. 6 show the control circuit for rewinding the adhesive coated end 31 onto the roll 30 and then ejecting the roll 30 from the rollers 3,6.

The energization of relay CR5 or CR7 at the start of the terminal adhesive application stage of line 13 in Figure 6 is at contact R5b.
Or close R7b and line 20, 21 in Figure 6
energize relay CR9. When relay CR9 is energized, normally closed contact R9a becomes open, and normally open contact R9b becomes open.
is closed.

Opening of contact R9a opens solenoid 46 in line 2 in FIG. 6, and valve 44 returns to the normally closed position and stops supplying air to blow nozzle 14. At this stage, the end 31 is blown up from the roll 30 and onto the delivery table 12, and operation of the delivery nozzle 14 is not necessary.

Closing contact R9b energizes timer TD2 on line 23 in FIG. Timer TD2 operates solenoid 76 and relay CR4 after a predetermined delay time.

During the time delay provided by timer TD2, and prior to actuation of solenoid 76 and relay CR4, adhesive gun carriage chassis 17 is stopped at the right or left end of hose 24 by the pneumatic control circuit described above.
As mentioned above, when the chassis 17 stops at a predetermined position at the end of the adhesive application stage, the acceleration relay CR5,
CR7 is opened and contacts R5a and R7a are closed.
Once contacts R3a, R5a, and R7a have returned to their normally closed positions, the roller drive motor is energized as shown at line 7 in FIG. 6, and adhesive coated end 31 is wound onto roll 30.

The length of the delay time due to timer TD2 includes the moving time of the movable base, and the length of the delay time when the rollers 3 and 6 are at the end 3.
1 is wound onto the roll 30, after which the solenoid 76 starts operating. The normal moving time of the movable chassis 17 is 1 second or less,
If the delay of timer TD2 is 2 seconds, the winding time will be 1 second or more, which is sufficient time.

After a delay time, solenoid 76 is energized to open air valve 74 and supply pressurized air to exhaust cylinder 9. The roll 30 is discharged from above the drive rollers 3, 6.

Another proximity switch PS3, shown in FIG. proximity switch
The PS 3 is installed to detect the top position of rotation of the second roller 6 during the winding discharge stage. The proximity switch PS3 is connected to the normally closed contact X14 of the circuit of lines 22-24 in FIG. 6, and opens the normally closed contact X14 when the second roller 6 approaches the proximity switch PS3.

The opening of contact X14 resets timer TD2 on line 24 of FIG. At the same time, the opening of contact X14 opens relay CR9 of line 22 in FIG.
Contact R9a is closed and contact R9b is open. By opening contact R9b of line 23 in FIG. 6, solenoid 76 opens, valve 74 returns to the normally closed position,
The supply of compressed air to the exhaust cylinder 9 is stopped. The second roller 6 returns to a position parallel to the first roller 3.

As shown in FIG. 1, the rotation of the second roller 6 with respect to the first roller 3 causes the second roller to temporarily pass in front of the photovoltaic cell 13a. Therefore, the contact X6 of line 2 in FIG. 6 is closed, and the blow-off nozzle solenoid 46 is activated inadvertently. To prevent unintentional actuation of the blow-off nozzle solenoid 46, a third timer unit TD3 is shown at line 25 in FIG. That is, at the same time as the solenoid 76 is activated to discharge the roll 30 from the roller, the timer TD2 activates the relay CR4, opens the normally closed contact R4, and activates the timer TD3.

When timer TD3 is activated, relay CR14 is activated for a predetermined period of time. While relay CR14 is energized, normally closed contact R14 is open. Contact R1
4 is indicated by line 2 in FIG. 6, and when it is opened, the current to the blowout nozzle solenoid 46 is cut off, and even if the second roller 6 passes in front of the photovoltaic cell 13a and the photovoltaic cell contact X6 is closed, the solenoid 46 remains open. Not assisted.

The delay time of timer TD3 is determined by the second roller 6.
This corresponds to the time it takes for the roller to reach the uppermost position near the proximity switch PS3 from the position parallel to the first roller 3 and return. After this time, timer TD3 is opened, relay CR14 is opened, and contact R14 is in the normally closed position. After this, when a new roll 30 arrives on the rollers 3 and 6, the photovoltaic contact X6 is closed and the blowing nozzle solenoid 46 is activated again.

The secondary roll discharge control will be explained.

The paper roll 30 ejects the previous roll before the arrival of the next roll, which is fed, for example, by a conveyor belt or the like at successively short intervals from a roll take-up device. Therefore, the secondary ejection control circuit ejects the rolls once they have remained on the drive rollers 3, 6 for a predetermined time, regardless of whether the above-described operating sequence has been completed. For example, if the end 31 is attached to the main body of the roll 30, line 1 in FIG.
~10 operations are not initiated. Photocell PC4, PC
5 is not shielded by the end 31.
If the terminal ends 31 are uneven as shown in FIG. 11, the control circuit shown in FIG. 7 will not operate and the photovoltaic cells PC2,
PC3 is not activated simultaneously by terminal 31. Therefore, it is necessary to discharge the defective roll before the next roll arrives to prevent collisions between the rolls and mechanical malfunction.

When the photovoltaic cell PC1 detects the roll on the driving rollers 3 and 6 and closes the contact X6 on line 2 in FIGS. 6 and 7, the timer TD1 shown in dotted lines in FIGS. 6 and 7 is activated. After a predetermined delay time, timer TD1 energizes relay CR1 and closes contact R.
1 is closed. Therefore, relay CR9 is energized,
The roll ejection sequence in line 19 of FIG. 6 is activated. Activation of relay CR4 during the roll ejection cycle opens contact R4 and resets timer TD1 in the lines of FIGS. 6 and 7.

In both the embodiments of Fig. 6 and Fig. 7, the relay CR5
Or, if CR7 is not energized within a predetermined time, roll discharge relay CR9 is connected to lines 20 and 21 in Figure 6.
Activate as shown in Figure 3 and energize relay CR1.

As mentioned above, the apparatus 32 of the present invention efficiently and quickly finishes roll products.

[Brief explanation of drawings]

FIG. 1 is a partially removed side view of a machine for processing the end of a paper roll according to an embodiment of the present invention; FIG.
The figure is an enlarged view of the movable base of the machine shown in Figure 1; Figure 3 is an enlarged front view showing another embodiment of the movable base; Figure 4 is a sectional view taken along line 4-4 in Figure 3; The figure is an enlarged partial sectional view showing another embodiment of the hose of the movable base and the pinching roller; Figure 6 is a control circuit diagram combined with the machine of Figure 1; Figure 7 is the terminal end of the machine of Figure 1. A control circuit diagram showing another embodiment of the control circuit of the positioning stage;
Figure 8 is an enlarged side view of a part of the machine shown in Figure 1; Figure 9
The figure shows a part of the movable table pneumatic control circuit of the machine shown in Figs. 1 to 4; Fig. 10 shows the air supply circuit combined with the control circuit of Figs. 6 and 9;
The figure is a partially enlarged plan view of the machine shown in FIGS. 1 and 8. 1...Support frame, 24...Pipe device, 42...
...Supply conduit device, 48...Movable platform device, 54...
Supply valve device, 56... Discharge device, 58... Discharge valve device, 91, 92... Check valve, 96, 98... Acceleration control device, 97, 99... Deceleration control device, 9
3,94...A device that moves the check valve from the closed position to the open position.

Claims (1)

[Claims] 1. A support frame 1; and a pipe device 24 having both ends, which is attached to the support frame and capable of introducing pressurized fluid.
a supply conduit system 42 for introducing pressurized fluid into both ends of the tubing system; and a discharge system 56 operable to selectively exhaust each of said ends to the atmosphere; a movable carriage assembly 48 mounted on the support frame and operatively engaged with the tubing arrangement for responsive movement between said ends; an acceleration control device 9 for introducing fluid into a selected one end of the movable platform device and simultaneously discharging fluid from the selected other end via a discharge device to cause accelerated movement of the movable platform device from said one end to the other end;
6, 98, and deceleration control devices 97, 99 for selectively restricting fluid discharge from the other end in relation to the ejection device and decelerating the movement of the movable platform device toward the other end, are first and second tube ends, and the supply conduit device includes a first tube coupled to the supply conduit device to block pressurized fluid flow to the first and second tube ends.
a supply valve movable between a supply position for introducing pressurized fluid into the first pipe end, a second supply position for introducing pressurized fluid into the first pipe end, and a third supply position for introducing pressurized fluid into the second pipe end; The evacuation device includes a first evacuation position associated with the evacuation device that isolates the first and second pipe ends from communication with the atmosphere, and a second evacuation position that communicates the second pipe end with the atmosphere. a discharge valve arrangement 58 movable between a second discharge position and a third discharge position communicating the first tube end to the atmosphere; The discharge valve device is in a first discharge position, the discharge valve device is in a second discharge position when the supply valve device is in a second supply position, and the supply valve device is in a third discharge position.
and a device for placing the discharge valve device in a third discharge position when the discharge valve device is in the supply position, the discharge valve device having a closure associated with the first pipe end that isolates communication between the first pipe end and the atmosphere. a first check valve 91 that is movable between the position and the open position that communicates the first pipe end with the atmosphere; a second check valve 92 movable between a closed position for blocking and an open position for communicating the second pipe end with the atmosphere;
The discharge valve device includes a device that flexibly presses the first and second check valves to a closed position corresponding to a first discharge position, and a device that flexibly presses the first and second check valves to a closed position corresponding to a first discharge position; a device 94 for moving the second check valve from the closed position to the open position against the action of the pushing device in response to extrusion from the second tube end; a device 93 for moving the first check valve from a closed position to an open position against the action of a pushing device in response to being pushed out of the first tube end. 2 The acceleration control device includes a first sensing device PS for moving the supply valve device from the first supply position to the second supply position when the movable platform device is at the first pipe end.
1 and a second sensing device PS2 for moving the supply valve device from the first supply position to the third supply position when the movable carriage device is at the second pipe end. The device described. 3 The first sensing device is a proximity switch device mounted proximate to the first tube end, which is in the open position when the movable carriage device is away from it and closed when the movable carriage device is in close proximity. and a first proximity switch device PS1 that moves to the closed position when the movable platform device is in close proximity, and the second sensing device is mounted in close proximity to the second tube end. a second proximity switch PS2 which moves to an open position when the movable platform device is away from the movable platform device and to a closed position when the movable platform device is close to the acceleration control device; is the supply valve device 54 and the first proximity switch device PS
1 to move the supply valve arrangement between the first supply position and the second supply position in response to movement of the first proximity switch arrangement between the open and closed positions. acceleration solenoid device 97 and supply valve device 5
4 and operatively coupled to the second proximity switch device PS2 to move the supply valve device between the first and third supply positions in response to movement of the second proximity switch device between the open and closed positions. and a second acceleration solenoid device 99 for movement between. 4. The discharge valve device is connected to the discharge valve device in close proximity to the first pipe end, and has a full discharge position that discharges the first pipe end to the atmosphere without resistance when the discharge valve device is in the third discharge position. and a first outlet valve device 87 movable so as to be in a partial exhaust position for partially exhausting the first pipe end to the atmosphere when the exhaust valve device is in the third exhaust position; is connected to a discharge valve device proximate to the pipe end of the discharge valve device, and when the discharge valve device is in a second discharge position, the second pipe end is in a full discharge position to discharge the second pipe end to the atmosphere without resistance; 2. The apparatus of claim 1, including a second outlet valve arrangement (89) movable to a partial exhaust position for partially exhausting the second tube end to the atmosphere when in the exhaust position. 5 The tube device has a central portion intermediate the first and second tube ends, and a first tube intermediate the first tube end and the central portion.
and a second portion between the second tube end and the central portion, the deceleration control device fully controlling the first outlet valve device when the carriage device is in the first portion position. a third sensing device PS5 for moving from a discharge position to a partial discharge position and a fourth sensing device for moving the second outlet valve device from a full discharge position to a partial discharge position when the carriage device is in the second partial position. The device according to claim 1, comprising a PS4. 6 The third sensing device is a third proximity switch mounted in close proximity to the first part, which is in an open position when the movable platform is spaced therefrom and in a closed position when the movable platform is in close proximity. a third proximity switch device PS5, said fourth sensing device being a fourth proximity switch mounted proximate to the second portion which is in an open position when the movable platform is spaced therefrom; The deceleration control device includes a fourth proximity switch device PS4 that moves to the closed position when the first outlet valve device 87
and a third proximity switch device PS5 to move the first outlet valve device between a full discharge position and a partial discharge position in response to movement of the third proximity switch device between an open position and a closed position. a first deceleration solenoid device operatively coupled to a second outlet valve device 89 and a fourth proximity switch device PS4 to move the fourth proximity switch device between open and closed positions; 6. The apparatus of claim 5, further comprising a second deceleration solenoid device 99 for moving the second outlet valve device 89 between a full eject position and a partial eject position in response to . 7. The device according to claim 6, wherein the pipe device 24 is an elastic hose. 8. The movable platform device 48 includes roller devices 25 and 26 that movably contact the elastic hose and pinch a part of the elastic hose to block passage of the pressurized fluid. Device. 9 The movable platform device 48 includes the movable platform chassis 17
and a vehicle device 1 bearing on both sides of the movable chassis.
8, 19, 20, and 21, the vehicle device engages a pair of parallel beams attached to the frame,
9. The device of claim 8, wherein the movable chassis is guided along the beam. 10 The above vehicle device includes a pair of rollers 18, 19, 2 whose rotational axes are arranged at right angles to each other.
0.21. 11 The roller device has two rollers 25, 2 narrowly spaced so as to sandwich an elastic hose between them.
6, the line of formation of each roller is outwardly convex; 9. A device as claimed in claim 8, in which the hose is sandwiched between the roller and the core member. 12. The device of claim 11, wherein the core member 68 is made of a solid material.