JPH08165041A - Automatic supply device for film roll - Google Patents

Abstract

PURPOSE: To make automatization capable in all the processes of packaging work by providing a conveyer of reciprocation transfer feeding a jig with a film roll placed on between receiving/supplying positions, and providing a loader of receiving the film roll supplied to the supplying position to charge a set position. CONSTITUTION: When a support arm 62 is placed in a position F in a condition that a charge arm 65 is placed in a not charging position, a film roll (r), placed on a jig (j) in a supply position of a conveyer, is conveyed to turn, when this film roll arrives at a receiving position as shown in the drawing, a rotary arm 61 and the support arm 62 in the clockwise direction at a prescribed angle θ. When the support arm 62 is placed in a position G, the charge arm 65 is moved to a charging position by a cylinder 64, to charge a charging part of a film supporting shaft 23 with the roll (r) held by a holding rod 63. A rubber tube in the film supporting shaft 23 is inflated by charging with air to hold this roll (r) fixed. An empty core tube (c) is discharged by a discharge member 72.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for automatically supplying a strip-shaped tape, film, web, etc. (hereinafter collectively referred to as a film roll) wound in a roll, and more specifically, for example, The present invention relates to an automatic supply device for automatically supplying and loading a film roll at a predetermined set position such as when supplying a film roll at a set position of a preliminary packaging film in an automatic packaging machine.

[0002]

2. Description of the Related Art When a container film is supplied in a packaging machine, conventionally, two film setting positions are usually provided, and a film or the like wound in a roll shape (hereinafter referred to as a film roll) is set at each of the setting positions. When the film on one film roll is used up, the front end of the film on the other film roll is connected to the rear end of the film by a connecting device so that the film is continuously supplied. . Then, a new film roll is loaded at the set position where the film has run out.

[0003] By the way, conventionally, it has been necessary to manually load a film roll into a set position of a film and remove a heart tube after the film is used up.
For this reason, an operator must look around at a predetermined time interval for setting the roll film, and it also hinders automation of the whole packaging process.
Furthermore, because there is always only one spare film roll set position, the interval between the replenishment and loading operations of the film is shortened (about 1 hour), and the worker is away from the packaging work site and other There is a problem that the time available for work is shortened.

[0004]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to provide an automatic film roll feeding device capable of automatically feeding the film roll to the set position and loading the film roll to the set position. It is possible to automate the whole process of packaging work.

Another problem to be solved by the present invention is to provide an automatic feeding device capable of taking out a tube after the film is used up from a set position and sending it to a predetermined recovery position apart from the set position. It is to be.

[0006]

SUMMARY OF THE INVENTION The present invention provides an automatic feeder for feeding a film roll near a desired set position to load the film roll at the set position,
A loader, which is arranged adjacent to the set position, receives a film roll, which is placed on a jig at a supply position and is supplied, and loads the film roll at the set position, the rotary shaft being attached to the rotary shaft. A supporting member that can be reciprocally rotated between a supply position and the setting position, a holding rod that is attached to the supporting member and holds a film roll, and a rotation rod that rotates together with the rotation shaft and an axis line of the rotation shaft. A loader that is movably arranged along the holding rod and moves in a direction to remove the film roll held by the holding rod from the holding rod; a receiving position for the jig for mounting the film roll; and a feeding position for the jig. And a conveyer for reciprocally transferring the film roll onto the jig at the receiving position and then sending the film roll to the supplying position. To have.

In the above automatic feeder, the set position is constituted by a film supporting shaft attached to a turret plate which can be intermittently rotated, and the film supporting shaft is radially outward by air supplied inside or by a cam drive. There may be a plurality of lugs that project to engage the inner surface of the tube of the film roll. Further, the automatic supply device is provided with a transfer device that receives the film rolls from a transport vehicle carrying a large number of film rolls and sends the film rolls onto the jig that is waiting at the receiving position of the conveyor. Good. Further, adjacent to the film support shaft, a discharge member is provided which is movable in the axial direction of the film support shaft and removes the core tube of the film roll supported by the film support shaft from the film support shaft. A conveyor may be capable of receiving the core tube from the loader at the feed location and transferring it to the receive location.

[0008]

In the above structure, when the film roll is received on the jig at the receiving position, the conveyor transfers the jig together with the film roll to the supplying position. The holding rod of the loader stands by at the feeding position, and when the film roll arrives at the feeding position, the holding rod enters the hole of the tube of the film roll, and the holding rod is ready to hold the film roll. After that, the supporting member of the loader rotates to move the holding rod holding the film roll to a position aligned with the film setting position. When the holding rod is aligned with the setting position, the loading member moves in the axial direction of the holding rod to move the film roll held by the holding rod to the setting position.

When the set position is constituted by a film support shaft attached to a turret plate capable of intermittent rotation, and the film support shaft is provided with an air-operated lug, the film support shaft is loaded with a film roll. After that, the film roll is fixed to the film support shaft by the lug. Further, when the automatic supply device is provided with a transfer device, the transfer device receives the film rolls from a transport vehicle carrying a large number of film rolls and places the jigs on the conveyor at the receiving position. Transfer the film roll. Further, when the discharge member is provided adjacent to the film support shaft, the discharge member removes the core tube of the film roll supported by the film support shaft from the film support shaft.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, a film roll automatic feeder (hereinafter referred to as an automatic feeder) 1 according to the present embodiment.
Is a film holding mechanism 2 for limiting the setting position of the film, a film support shaft rotating mechanism 4 for rotating the film roll held by the film holding mechanism 2, and a film holding mechanism 2 arranged adjacent to the film holding mechanism 2. The loader 6 that loads the film roll received at the position into the set position limited by the film holding mechanism 2, the core tube discharge mechanism 7 that discharges the core tube of the film roll from the film support shaft, and the jig at the receiving position. A conveyor 8 which sends the jig to the supply position after receiving the film roll and returns the jig from the supply position to the receiving position; For transferring the film roll onto the jig that has been received and is waiting at the receiving position of the conveyor
And are arranged in a positional relationship as shown in FIGS.

2 to 5, the film holding mechanism 2 includes a hollow main shaft 21 rotatably supported by a main body 11 of the apparatus via a bearing (not shown), and the main shaft 21.
And a turret disk 22 fixed to the tip (the left end in FIG. 2). A plurality of film support shafts 23 are rotatably mounted on the turret board at equal intervals on a circumference of a predetermined radius via a bearing having a known structure (not shown). A gear 25 is formed on the outer periphery of the turret board, and the gear 25 meshes with an index device attached to the main body 11 of the automatic connecting device, that is, a drive gear 32 attached to the output shaft 311 of the intermittent drive device 31. The input shaft 312 of the intermittent drive device 31 is connected to the output shaft 331 of the worm speed reducer 33, and the input shaft 332 of the worm speed reducer 33 is rotated by the motor 35. The gears on the outer periphery of the turret board 22, the intermittent drive device 31, the drive gear 32, the worm speed reducer 33, the motor 35, and the like constitute a drive mechanism 30 for the turret board of the present embodiment.

In the film holding mechanism, the film roll mounting portion 232 at the tip of the film support shaft 23 has the same structure as that of a commercially available air shaft. As shown in FIGS. 6 and 7, this structure has a plurality of lug plates 235 arranged at equal intervals in the circumferential direction in a hollow shaft body 233, and the outside of the lug plates (as viewed in the radial direction). ) Is formed with a lug 236 capable of projecting to the outside of the shaft body through a slit 234 formed penetrating the shaft body 233 inward and outward, and a rubber tube 237 that is radially expandable is arranged inside the lug plate. It is configured. Then, air is supplied into the rubber tube 237 through a supply / discharge plug 238 having a known structure provided at the tip of the film mounting portion (the left end in FIGS. 2 and 5), so that the plurality of lugs 236 are radially outward. It projects and hits the inner surface of the core tube c of the film roll r, and holds the film roll r concentrically with the rotation axis of the film support shaft 23 so that it can rotate. Further, when the air inside the film mounting portion is discharged, the lug retracts in the radial direction, so that the film roll can be easily attached to and detached from the film support shaft. Note that the supply / discharge plug has the function of a valve, and once the rubber tube 2
When the air is supplied into 37, the air is retained in the rubber tube until the air is discharged through the supply / discharge plug next time. In this embodiment, the turret board 22 is rotated 90 degrees counterclockwise in FIG. 1 via the worm speed reducer 33 and the intermittent drive device 31 by the rotation of the motor 35.
The film support shaft 23 is intermittently rotated every time and stops at the stations A to D. As shown in FIG. 10, the film roll r has a structure in which a film is wound around the core tube c and the end portion of the film is fixed with an adhesive tape t, but the structure is not limited to this. It is not something that can be done.

The support shaft rotating mechanism 4 includes a large-diameter sun gear 41 rotatably supported with respect to the main shaft at the rear part of the turret board (right side in FIGS. 3 and 4) and the center of rotation of the main shaft, and each film. The rear end of the support shaft 23 is connected to the film support shaft via an electromagnetic clutch device 42 arranged on the rear surface (right surface in FIG. 3) side of the turret plate, and is always meshed with the sun gear 41. And a planetary gear 43. The electromagnetic clutch device 42 has a known structure as long as the film support shaft 23 and the planetary gear 43 are separated when the coil inside is not energized and the film support shaft 23 and the planetary gear 43 can be connected only when the coil is energized. It ’s fine. Therefore, a detailed description of the electromagnetic clutch device is omitted here. A gear 44 is integrally formed on the sun gear 41 so as to be separated in the axial direction, and the gear 44 is a gear 46 of a drive motor 45.
Are in mesh with each other. A pair of collector electrodes 50, 51 corresponding to each film support shaft 23 is provided around the turret board 22.
(FIGS. 5A and 5B) are attached. The collector electrodes 50 and 51 are electrically connected to the coil of the electromagnetic clutch device. These collecting electrodes 50 and 51 are the power feeding electrodes 52 attached to the main body 11 at the station A which is one of the intermittent stop positions of the turret board 22.
And 53 (FIG. 5 [A]), respectively. These power supply electrodes are connected to a power supply. In this embodiment, a hollow shaft connecting the sun gear 41 and the gear 44 is rotatably supported by the main body, and the turret support shaft 21 is rotatably supported in the shaft. Other structures may be used. Although the film supporting shaft rotating mechanism is not the gist of the present invention, the film supporting shaft 23 is associated with the operation of the film end peeling mechanism 101 (detailed description thereof is omitted) related to automatic film feeding.
To rotate.

In the support shaft rotating mechanism, when the drive motor 45 rotates, all the planetary gears 43 rotate via the gear 44 and the sun gear 41. However, since the planetary gears 43 in the stations B to D other than the station A are separated from the film supporting shaft 23 by the electromagnetic clutch device 42, the film supporting shafts in those stations B to D do not rotate, but the station A does not rotate. The electromagnetic clutch device 42 is operated by energizing the coil to connect the planetary gear and the film support shaft. Therefore, the film support shaft 23 in this station A
Is rotated clockwise in FIG. 1 by the rotation of the drive motor 45.

A turret board 2 is provided on each film support shaft 23.
A brake device 55 is arranged on the front side of 2 (the left side in FIG. 3). In this embodiment, as shown in FIG. 8, the braking device 55 includes a case 56 fixed to the turret board 22 and a support rod 57 attached to the case.
And a leather band 58 having one end fixed to the support rod 57 and in contact with the outer periphery of the sleeve 231 fitted to the outside of the film support shaft to give rotational resistance to the film support shaft.
And a helical spring 59 attached to the other end of the leather band 57 and applying tension to the leather band 57. The spiral spring 59 is wound around a spring support shaft 591 attached to the case.

2 to 4, the loader 6 is
A rotary shaft 61 which is rotatably and slightly movable in the axial direction on the upper bearing portion 13 of the main body 11 and is arranged parallel to the support shaft 21 of the turret plate, and a tip of the rotary shaft (in FIGS. 3 and 4). A support member or support arm 62 made at the left end), a holding rod 63 attached to the end of the support arm in a cantilever manner and extending parallel to the rotation axis 61, and an outer circumference of a sleeve portion 621 of the support arm. And a rodless air cylinder 64 of a known structure arranged at a position where the support arm extends, and a loading member or loading arm 6 attached to the rodless air cylinder.
5 and 5. A gear 66 is attached to the rear end of the rotary shaft 61, and the rotary shaft and the support arm 62 are reciprocally rotated within a range of an angle θ in FIG. 2 by rotating the gear by a motor (not shown). ing. The distance R from the axis of rotation of the rotary shaft 61 to the axis of the holding rod 63 is calculated from the axis of rotation of the rotary shaft to the turret board 22.
Of the film support shaft 23 attached to the station D and is equal to the rotation axis of the film support shaft at the station D. Therefore, when the support arm 62 is in the position G, the holding rod 63 and the film support shaft 23 are coaxial with each other as shown in FIG.

At the free end (the end facing the end of the film support shaft 23 at the right end in FIG. 4) of the holding rod 64, there is a feed / discharge plug attached to the end of the film mounting part of the film support shaft 23. A supply / discharge socket (not shown) of a known structure for supplying and discharging air in combination is attached. A pair of air passages (not shown) for supplying / discharging air to / from the rodless air cylinder 64 and a supply / discharge passage (not shown) communicating with the supply / discharge socket are formed in the rotary shaft 61. There is. The supply / discharge passage communicates with the supply / discharge socket via a passage formed in the support arm 62 and the holding rod 63. The air passage is connected to the air supply circuit for the rodless cylinder at the end of the rotary shaft by a known method, and the supply / exhaust passage is selectively supplied with air through a switching valve (not shown). It can be eliminated. The rodless air cylinder 64 is in a non-loading position in which the loading member or loading arm 65 approaches the support member or support arm 62 when, for example, air is supplied to one air passage and the other air passage is released to the atmosphere. The piston is configured to move such that when one air passage is opened to the atmosphere and air is supplied to the other air passage, the loading arm 65 is at a loading position separated from the support arm. In addition,
The supply / discharge passage, the air passage, and the air supply source (not shown)
The connection with and is made by known means at the rear end of the rotary shaft (right end in FIG. 3).

In the loader having the above construction, when the supporting arm 62 is in the position F while the loading arm 65 is in the non-loading position, the film roll r placed on the jig j at the feeding position of the conveyor is loaded. Receiving and rotating shaft 61
When the support arm 62 rotates clockwise by an angle θ in FIG. 8 to bring the support arm 62 to the position G, the rodless air cylinder 64 operates and the loading arm 65 moves to the film support shaft side to the loading position. The film roll r moved and loaded on the holding rod is loaded into the mounting portion 232 of the film support shaft 23. At this time, the lug 236 of the mounting portion 232 is retracted inward in the radial direction. After that, the rotary shaft 61 slightly moves to the right in FIGS. 3 and 4, and the feeding / discharging socket attached to the tip of the holding rod 63 comes into contact with the feeding / discharging plug 238 at the end of the film supporting shaft. Air is supplied into the inside rubber tube 237. Then, the lug projects outward in the radial direction and holds the loaded film roll r. Then, the rotary shaft 61 moves axially to the original position, and after the loading arm 65 attached to the rodless air cylinder returns to the non-loading position, the rotary shaft 61 is angled counterclockwise in FIG. θ
The support arm 62 and the holding rod 63 are rotated to the position F.

The mandrel discharge mechanism 7 is an operation rod 71 which is inserted into a support shaft 21 of a rotating disk or a turret disk so as to be movable in the axial direction and rotatable with respect to the support shaft.
A discharge member 72 fixed to the tip (left end in FIGS. 3 and 4) of the operation rod 71, and a cylinder 73 connected to the rear end side of the operation rod 71. The cylinder 73 is fixed to the rear portion of the main body 11 by a bracket 74. The discharge member 72 extends toward the station D to a position close to the film support shaft 23 whose front end is stopped at the station D. This cardiovascular drainage mechanism 7
Normally, the discharge member 72 is close to the turret board, but when the film of the film roll r is used up and only the core tube c arrives at that position, the cylinder 73
Operates to push the operating rod 71 forward (to the left in FIGS. 3 and 4) to move the discharge member in the same direction,
The discharge member removes the core tube from the film support shaft 23.

In FIGS. 1, 2 and 9, the conveyor 8
Is a first horizontal feed conveyor 81, a second horizontal feed conveyor 82, a vertical conveyor 83 arranged between the first horizontal feed conveyor 81 and the second horizontal feed conveyor 82, and a second horizontal feed conveyor 82. The vertical feed conveyor 85 is disposed adjacent to the end position of the horizontal feed conveyor 82. The first and second lateral feed conveyors 81 and 82 may be belt-type conveyors having a known structure capable of reciprocating the jig j for a film roll on a belt and supporting the jig with a large number of rollers. A known roller-type conveyor for feeding with a feeding claw may be used. The vertical conveyor may have a known structure as long as the jig j can be moved between the end position of the first horizontal feed conveyor 81 and the start position of the second horizontal feed conveyor 82. Furthermore,
As shown in FIG. 9, the vertical feed conveyor 85 is a roller type conveyor that can reciprocate the jig j on a large number of rollers 851 rotatably arranged on one plane. Each roller 851 is reciprocally rotated by itself by a motor so that the jig j placed on the roller 851 can be moved left and right (in FIG. 9). A fixed stopper 852 is arranged at the end (left end in FIG. 9) of the vertical feed conveyor, and a movable stopper 853 is rotatably arranged at the center.

In the conveyor 8 having the above structure, the film roll r is placed on the jig j at the receiving position H of the first transverse feed conveyor 81, and its axis is substantially in the feed direction of the conveyor 81 as shown in FIG. When placed in a right angle state, the jig j together with the film roll is moved up and down the conveyor 83.
Send to. The elevating conveyor 83 is the lateral feed conveyor 8
The jig j is received together with the film roll from 1 and is raised and placed on the second transverse feed conveyor 82. Then the second
The horizontal feed conveyor 82 feeds the jig j together with the film roll toward the vertical feed conveyor 85. The jig j and the film roll r that have arrived at the end of the second horizontal feed conveyor 82
Is placed on the roller 851 of the vertical feed conveyor 85 by a known device (not shown). After that, vertical conveyor 8
When the rollers of No. 5 are rotated, they are sent to the supply position and stopped while hitting the stopper 852. At this time, the support arm 62 of the loader 6 faces the position G at that position, and the holding rod 63 attached to the support arm 63
Is waiting at the supply position, the jig j moves to the supply position, so that the holding rod 63 enters the tube c of the film roll r and can be transferred by the holding rod.

The transfer device 9 includes a large number of film rolls r mounted on a transport vehicle 9a whose traveling is controlled by a computer.
It may be a robot type device having a known structure in which one of them is gripped and placed on the jig j waiting at the receiving position of the first transverse feed conveyor 81.

The automatic feeder as described above is shown in FIG.
As shown in FIG. 1, when supplying a film roll for a container film to the blister packaging machine 110 (reference numeral 1a
, And / or when a film roll for the cover film is supplied (indicated by reference numeral 1), the shape of the conveyor is arbitrarily changed depending on the position of supply. Then, the film roll holding mechanism 2 holds a large number of film rolls in the blister packaging machine 110 and automatically feeds the film rolls in order to automatically and continuously feed the container film or the cover film from the film rolls. It can be used as a position delivery device.

Next, the entire operation of the automatic feeder of the above embodiment will be described with reference to FIGS. 12 and 13 as an example of feeding a cover film to a blister packaging machine. When the blister packing machine is operated for the first time, first, the film roll r is manually loaded on the film support shafts 23 in the stations A to D of the film roll holding mechanism 2 and the film is unwound from the film roll in the station B. Used in blister packaging machine. When the film f of the film roll r in the station B is used up, the leading end of the film drawn from the film roll in the station A is connected to the trailing end of the film drawn from the station B by an automatic connecting device (not shown). . When the connection is completed, the turret plate 22 of the film roll holding mechanism 2 rotates about 90 ° and the film roll in the station A moves to the station B while feeding the film, and the film is exhausted in the station B. The core tube c of the film roll r moves to the station C. The film roll in station C moves to station D. Similarly, when the film fed from the film roll transferred from station A to station B is used up, station A is newly added to the trailing edge of the film.
The turret board 22 is rotated 90 ° again while the leading end of the film pulled out from the film roll transferred to is connected and the film is supplied to the blister packaging machine. Therefore, the core tube c held by the film support shaft 23 at the station C moves to the station D.

Film support shaft 2 at station C
At about the same time that the mandrel held by No. 3 is transferred to the station D by the 90 ° intermittent rotation of the turret plate, the support arm 62 of the loader 6 is rotated clockwise by an angle θ in FIG. As shown in FIG. 12A, the holding rod 63 attached to the supporting arm 62 is aligned with the film support 23 at the station D in the same axis. Then, the holding rod 63, together with the rotary shaft 61 and the support arm 62, slightly moves toward the support shaft 23, and the supply / discharge socket attached to the end is connected to the supply / discharge plug of the support shaft to connect the film support shaft. The air of the air shaft mechanism is discharged, and the lug 236 moves inward in the radial direction to release the holding of the heart tube c. When the film support shaft is in this state, the cylinder 73
And the discharging member 72 moves to the left in FIG. 12A,
The core tube supported by the film support shaft 23 is the discharge member 7
2 is transferred to the holding rod 63. When the heart tube is transferred to the retaining rod 63, the drainage member returns to its original position. In the meantime, in the vertical feed conveyor 85, as shown in FIG. 12A, the tip of the movable stopper 853 protrudes from between the adjacent rollers 851 to a position higher than the conveying surface of the rollers and moves the jig j (see FIG. [A] to the right) is stopped, and the jig is stopped at the core tube receiving position J.

Next, the support arm 62 of the loader 6 is rotated by the angle θ.
It rotates in the counterclockwise direction (in FIG. 2) and moves to the position F, as shown in FIG. 12B. Then, the rodless cylinder 64 operates, the loading arm 65 moves to the right in FIG. 12B, and the core tube c held by the holding rod 63 is held in the core tube receiving position J. Put it on top.
The support arm 62 of the loader 6 remains in the position F, and the loading arm 65 returns to the position approaching the support arm and waits. When the heart tube is placed on the jig, the movable stopper 853 is rotated in the clockwise direction so that the tip of the movable stopper 853 is moved to the roller 8
It is retracted below the conveyance surface of 51 and kept in that state. Each roller 851 of the vertical feed conveyor 85 is rotated clockwise (see FIG.
2 [B]) starts to rotate and sends the jig with the core tube on top to the end of the vertical feed conveyor (right end in FIG. 12 [B]). When the jig arrives at that position, it is moved to the horizontal feed conveyor 82 by a pusher device (not shown), and is sent to the receiving position H by the horizontal feed conveyor 82, the vertical conveyor 83, and the horizontal feed conveyor 81. At this position, the heart tube c is removed from the jig j by the transfer device 9a and the recovery box 9 is removed.
A new film roll r is transferred from the transport vehicle 9a onto the jig j by the transfer device 9 on the jig j.

When the supply of the new film roll r to the jig j is completed, the jig j is moved to the first horizontal feed conveyor 8
1. Second horizontal feed conveyor 8 via vertical conveyor 83
2 is sent to the end of the vertical feed conveyor 85 as shown in FIG. 13A by a pusher device (not shown).
13 (A right end in FIG. 13 [A]). At this time, the movable stopper 853 is rotated in the clockwise direction so that the tip of the movable stopper 853 is retracted below the conveying surface of the roller 851, and the movable stopper 853 is at a position where it does not interfere with the movement of the jig. In this state, the rollers 851 of the vertical feed conveyor 85 start to rotate in the counterclockwise direction all at once, and the jig j on which the new film roll r is placed is moved to the supply position I to the left (in FIG. 13 [A]). To move. At this time, the support arm 6 of the loader 6
No. 2 is waiting at the position F, so when the jig moves to the left and hits the fixed stopper 852 to stop, the support arm 62
The holding rod 63 attached to is inserted into the hole of the film roll r placed on the jig as shown in FIG. Therefore, the film roll can be transferred by the loader.

When the holding rod 83 is completely inserted into the core tube c of the film roll r, the supporting member of the loader 6, that is, the supporting arm 62, rotates in the clockwise direction in FIG.
When rotated, the holding rod is axially aligned with the film support shaft 23 at the station D that defines the film setting position, as shown in FIG. 13B. That is, the axis of the holding rod 83 and the axis of the film support shaft 23 are coaxial. Thereafter, the rodless cylinder 64 operates to move the loading member, that is, the loading arm 65 in the axial direction of the holding rod in the direction away from the support arm (right in FIG. 13B), and the film roll held by the holding rod is moved. Transferred to the film support shaft 23, the loading arm 65 returns to its original position. After that, when the holding rod 83 slightly moves toward the film support shaft 23 by the rotating shaft 61, the supply / discharge socket provided at the end of the holding rod engages with the supply / discharge plug provided at the end of the film support shaft. Then, air is supplied into the rubber tube 237 of the film support shaft through the supply / discharge plug. Then, the rubber tube expands in the radial direction and the lug attached to the film support shaft projects in the radial direction, and engages with the inner circumference of the core tube c of the film roll r to fix the film roll to the film support shaft. The holding rod then moves axially backwards and stands by at that position. This completes the operation of collecting the core tube c from the film supporting shaft and loading the new film roll r onto the film supporting shaft.

When the film of the film roll currently supplied to the packaging machine is used up, the leading end of the film drawn from the next film roll is connected to the trailing end of the preceding film as described above, and the turret is connected. The board 22 rotates about 90 °, and the station D of the film holding mechanism 2
The film supporting shaft 23, to which only the cardinal tube is attached, arrives at the device, and the same operation as described above for collecting the cardinal tube c and loading a new film roll r on the film supporting shaft is performed.

In the above embodiment, the air is supplied to and discharged from the air shaft structure through the supply and discharge plug provided at the tip of the film support shaft. However, the air passage of each film support shaft is provided with the turret board. The air may be supplied to and discharged from the turret board side through a publicly known rotary connector by extending the body in the axial direction. Also, the rubber tube 2 of the air shaft
An operating rod (not shown) having a conical surface formed instead of 37 is provided movably in the axial direction in the film supporting shaft, and the radially inner edge of the lug plate 235 is an inclined surface engaging with the conical surface. Alternatively, the lug may be moved inward and outward in the radial direction by moving the operating rod in the axial direction.

[0031]

According to the present invention, the following effects can be achieved. (1) Since the film roll can be automatically loaded into the set position of the film, it is possible to automate the supply and loading work of the film roll, which has hitherto been relied on manually (inventions 1 to 4). (2) Since the heart tube discharged from the set position of the film can be collected at a position far from the set position, it is not necessary to approach the device using the film roll, and the loading operation can be made safe.

[Brief description of drawings]

FIG. 1 is a perspective view schematically showing an entire automatic feeder for film rolls of the present invention.

FIG. 2 is an enlarged front view showing a film holding mechanism, a loader, and a tube discharge mechanism that limit a setting position of a film roll.

3 is a cross-sectional view taken along the line MM of FIG.

4 is a cross-sectional view taken along the line NN of FIG.

5A is a partially enlarged cross-sectional view of station A of FIG. 2, showing a pair of power supply electrodes and current collecting electrodes;
[B] is a view taken along the line OO in FIG. 3.

FIG. 6 is an enlarged perspective view of a front end portion of a film support shaft with a part removed.

FIG. 7 is an enlarged cross-sectional view of the tip of the film support shaft.

FIG. 8 is an enlarged cross-sectional view of a brake mechanism for a film support shaft.

FIG. 9 is a view taken along line P-P in FIG. 2, showing a vertical feed conveyor.

FIG. 10 is an enlarged perspective view of a film roll.

FIG. 11 is a diagram showing the use of an automatic feeder for film rolls.

12A and 12B are operation explanatory diagrams of the loader and the vertical feed conveyor, and are diagrams for explaining different operation states.

13A and 13B are operation explanatory diagrams of the loader and the vertical feed conveyor, and are diagrams for explaining different operation states different from FIG. 12;

[Explanation of symbols]

1 film roll automatic supply device 2 film holding mechanism 21 support shaft 22 turret plate 23 film support shaft 232 film mounting portion 235 lug plate 236 lug 237 rubber tube 30 drive mechanism 6 loader 61 rotating shaft 62 support member 62 holding rod 65 loading member 7 Cardiac Discharge Mechanism Operation Rod 72 Discharge Member 8 Conveyors 81, 82 Horizontal Feed Conveyor 85 Vertical Feed Conveyor

Claims (4)

[Claims] 1. An automatic feeder for feeding a film roll to the vicinity of a desired set position to load the film roll into the set position, wherein a jig is provided adjacent to the set position and located at the feed position. A loader that receives a film roll that has been placed and is supplied and loads the film roll into the set position, the support member being attached to the rotary shaft and reciprocally rotatable between the supply position and the set position. A holding rod attached to the support member for holding a film roll, and a film held by the holding rod, arranged to rotate together with the rotating shaft and movable along the axis of the rotating shaft. A loader equipped with a loading member that moves the roll in the direction of removing it from the holding rod; and a jig for mounting the film roll, reciprocating between the receiving position and the supplying position. A conveyor for feeding, automatic feeder of the film roll, characterized by comprising a conveyor for sending to the supply position after receiving the film roll on the jig in the receiving position. 2. The automatic feeder according to claim 1, wherein the set position is constituted by a film support shaft attached to a turret plate capable of intermittent rotation, and the film support shaft is supplied with air supplied therein. Alternatively, in a film roll automatic feeding device, which is provided with a plurality of lugs which are radially outwardly projected by a cam drive and engage with an inner surface of a core tube of the film roll. 3. The automatic feeding device according to claim 1, wherein the film roll is received from a transport vehicle carrying a large number of film rolls, and is placed on the jig waiting at the receiving position of the conveyor. An automatic feeder for film rolls, comprising a transfer device for feeding the film rolls. 4. The automatic feeding device according to claim 1, wherein the film supporting shaft is adjacent to the film supporting shaft, is movable in the axial direction of the film supporting shaft, and is supported by the film supporting shaft. An automatic supply of the film roll is provided with a discharge member for removing the core tube of the film roll from the film support shaft, and the conveyor can receive the core tube from the loader at the supply position and transfer it to the reception position. apparatus.