JPH0767934B2 - Roll end face protection ring insertion device - Google Patents

Description

TECHNICAL FIELD The present invention relates to an apparatus for inserting a protection ring for protecting an end face of a product roll having a sheet-like material wound thereon, and more specifically, to a device slightly longer than the product width. The present invention relates to a protection ring inserting device for inserting rings for protecting the end faces of the roll into both ends of the core which is wound up in a relatively small diameter on the core pipe.

(Prior Art) A product roll (hereinafter, abbreviated as a roll) in which a synthetic resin film or other sheet material is wound up into a roll is particularly liable to be damaged at the corners of the end face, so that the end faces of some end face may be damaged. Protective measures must be provided.

As one of such end face protecting means, a protection ring is attached to the roll end face of a roll which has conventionally been wound up to a relatively small diameter.

In this case, when mounting the protective ring, as shown in FIG. 9 (a), the web is wound up in advance on a core tube slightly longer than the product width, and the core tube ends protruding at both ends of the roll are wound. As shown in FIG. 9 (b), the ring (R) is inserted into the part and the ring (R) is fixed to the end of the roll. , It is done by hand, and no automated one has been proposed yet.

(Problems to be solved by the invention) However, recently, automation has been promoted in fields such as packaging machines, and various researches have been added. However, when manual work is involved as described above, when packaging roll products. However, even if an attempt was made to achieve rationalization by unmanning all steps, human intervention was involved in the work of inserting the protection ring, which was a major obstacle to rationalization promotion.

In view of such circumstances, the present invention newly provides a ring insertion device for inserting the end face protection ring, thereby automating the ring insertion work to the end face of the product roll and promoting the continuation of the packaging process. That is the purpose.

(Means for Solving the Problems) That is, the feature of the device of the present invention which is adapted to the above-mentioned object is that a roll in which a sheet-like material is wound on a core tube is placed orthogonally to the traveling direction, and a conveyor for intermittently conveying the roll. A ring supply device provided on the side of the required stop position of the roll conveyed by the conveyor and having an openable / closable holder for holding a ring fitted to the end of the roll, and the required stop on the conveyor The ring inserting device is arranged substantially on the same straight line as the position and the ring holder, and basically includes a ring inserting device that fits the held ring on the roll end face, and the ring inserting device is a first cylinder. A second cylinder mounted on the cylinder rod of the cylinder, the outer cylinder of which is slidable, of which the first cylinder penetrates through the ring held by the holder. While the rod extends and holds the ring between the holder and the roll end surface, the second cylinder pushes the held ring from the holder position to the roll end surface, and the ring is fitted to the roll end surface. is there.

In the invention described in claim 2, in the above structure, the ring insertion device is further embodied, and the ring insertion device is mounted on the first cylinder and the piston rod of the first cylinder. The first cylinder has a piston rod whose tip is fitted with a frustoconical ring inserter which can be fitted into the core tube and which can be fitted into a ring at the rear of the piston rod, while the second cylinder is An outer cylinder having a front edge having the same diameter as the ring and slidable on the piston rod of the first cylinder; and a cam fixed to the outer cylinder and extending from outside the outer cylinder to the front of the outer cylinder. In addition to the above, the cam follower engageable with the cam is provided in the ring supply device, and the ring retainer can be opened and closed by engaging both.

(Operation) First, the protection ring insertion device of the present invention having the above structure is
One ring is supplied to the ring holder of the ring supply device and held by the holder.

Then, when the roll is conveyed by the conveyer and the ring held by the ring holder and both end faces of the roll face each other, the first cylinder of the ring insertion device acts, and the piston rod penetrates the ring hollow portion. At the same time, the tip of the insertion tool at the tip of the rod fits into the core tube.

At this time, the ring is held by being fitted to the ring at the rear end of the insertion tool.

Then, under such a state, the second cylinder then operates, and the outer cylinder of the second cylinder slides forward on the piston rod of the first cylinder. At this time, since the cam is provided on the outer cylinder so as to project to the front, the cam first engages with the cam follower of the ring holder by the sliding of the outer cylinder, and this engagement causes the ring holder to move the ring. The holding is released, and the front edge of the outer cylinder that has advanced immediately after this comes into contact with the ring, pushes the ring at the rear end of the insertion tool forward, that is, to the roll end face side, inserts it into the core tube, and winds it up. The end of the product roll.

Embodiment An embodiment of the device of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic plan view showing an example of a protective ring insertion device according to the present invention, and FIG. 2 is a schematic side view of the device.

In these figures, (I) indicates a chain conveyor,
An endless chain (2) is horizontally stretched between a chain wheel (1) and a chain wheel (1) '(not shown), and a gutter () for mounting the roll (3) on the endless chain (2). 4), (4) ′, (4) ″ ... are pivotally mounted and are intermittently fed by a not-shown driving device by a gutter pitch (P). (5) and (5) ′ are conveyor machine frames, A stay (7) provided laterally between the main machine frames (6) and (6) ',
It is placed and fixed on (7) '. In the figure, (51)
Is a device for preventing lateral displacement of the roll to be processed when the ring is inserted.

Ring supply devices (II) and (II) 'and ring insertion devices (III) and (III)', which are essential parts of the present invention, are installed on both sides of the chain conveyor (2). Hereinafter, the ring feeding device (II), (II) 'and the ring insertion device (II
I) and (III) 'will be described. Since both of these devices have the same structure on both sides of the conveyor (I), only one side will be described.

3 to 5 show an outline of the ring supply device (II), and in FIG. 1 and the above-mentioned FIGS. 3 to 5,
(8) and (8) 'are ring lift conveyor frames, the lower part of which is fixed to the base (9) and the upper part of which is connected by a stay (10).

And the ring lift conveyor frame (8),
Pulleys (11) and (11) 'are supported above and below (8)' in a position inclined to the vertical chain conveyor (I) with respect to the vertical line as shown in FIG. 1
A belt (12) is stretched between 1) and (11) '.

On the belt (12), the crosspieces (13), (13), ... Are equidistantly fixed and inclined and fixed toward the opening (14) of the ring lift conveyor frame (8) at the shaft end of the upper pulley (11). Power is introduced into the provided chain wheel (15) from a drive source (not shown), and in FIG. 5, the pulley (11) is rotated in the clockwise direction shown by the arrow. In the figure, (h) is a ring hopper for supplying the ring (R) to the belt (12) of the ring lift conveyor.

Therefore, in the above structure, guide plates (16) and (16) 'are provided on both sides of the belt (12) from the lower pulley (11)' to the height of the lower surface of the opening of the frame opening (14), respectively. , (8) 'are fixedly provided, and further below the lower pulley (11)', there is a curvature through which the crosspiece (13) can pass on the pulley (11) ', Different information boards (17)
Over the entire width of the pulley (11) ', the frame (8),
(8) 'is installed horizontally.

Both ends of the guide plate (17) are bent toward the pulley (11) 'to have a U-shaped cross section, and the pulley (1)
The gap between the outer circumference of 1) 'and the guide plate (17) is covered.

Further, as shown in FIG. 5, the ring lift belt (12)
The belt support plate (19) is provided on the rear side of the upward traveling side of the frame (8) from the lower pulley (11) ′ to the height of the upper surface of the frame opening (14) over the entire width of the belt (12).
It is fixed between (8) '.

On the other hand, the lower surface of the base (9) has protrusions (20) and (20) ', and the rail (21) fixed to the stay (7)' with the protrusions (20) and (20) '. ), And a nut (22) pivotally attached to one end of the base (9) is attached to the main machine frame (6).
The screw rod (23) axially supported between the
The rotation of the screw rod (23) causes the ring supply device (II) to move toward and away from the conveyor (1). A chain wheel (25) for interlocking with a ring inserting device (III) described later is attached to the cantilever type protruding end of the main machine frame (6) of the screw rod (23).

The opening (14) of the conveyor frame (8) has the same inclination as the crosspiece (13) of the belt (12) as shown in FIG. (26) is installed.

The ring rolling rail (26) has a groove having a U-shaped cross section as shown in FIG. 3 (B), and the ring (R) rolls down in the groove. The ring (R) is slightly tilted so as not to fall off from the bottom of the groove, and the cap (27) is fixed to the lower side of the groove.

The lower end of the U-shaped groove is cut off at the terminal end (D) of the ring fall rail (26) to form a ring (R) from which the ring (R) can fall. Further above rails (26)
A bracket (28) is fixedly hung on the terminal end portion, and one ring is extended and dropped onto the bracket so as to be pivotally attached.

That is, in the ring feeding and dropping device, the ring stopper (29) is rotatably mounted on the pin (30) fixed to the bracket (28) by the ring stopper, and is rotated and raised counterclockwise by the spring (31). , The ring (R) is prevented from falling on the ring fall rail (26).

(S) is a sensor that detects the presence or absence of a ring on the rail.

The ring stopper (29) has a gear (32) fixed to its base, and the gear (32) is rotatably mounted on another pin (33) on the bracket (28). It is meshed with a gear (35) fixed to the base of the retainer (34), and another pin (3) also on the bracket (28).
Another ring holder (34) 'is rotatably attached to 3)' at a position symmetrical to the holder (34), and a gear (35) 'fixed to the base thereof is the gear (35). Has been meshed with.

The ring holders (34), (34) 'have cross-sectional shapes taken along the line CC of FIG. 4 (a), as shown in FIG. 4 (b), with side plates (36) on both sides of the middle plate (37). It has a sandwiched integral structure, and the side plate (36) has a U-shaped cross-section protruding from the middle plate (37) inside the ring holders (34), (34) '.

The upper part of the middle plate (37) has a protrusion (38), and the lower part is bent inward and faces each other (3).
The V-shape formed by the lower bends (39) of (4) and (34) 'prevents the ring (R) from falling and holds the side surface of the ring (R) by the U-shape.

The ring holders (34), (34) 'are provided with cam followers (40), (40)' on their lower surfaces, and the cam followers (40), (40) 'will be described later. The ring holders (34) and (34) 'which are engaged with the cam (50) of (III) and are engaged with the cam are respectively connected to the pin (3).
3) and (33) 'are pivotally opened to release the holding of the ring (R) of the portion, and the rotation is rotated to the gear (35).
Is transmitted to the gear (32) to rotate the ring stopper (29) in the clockwise direction in the figure against the spring (31) to release the ring stopper (29) from the ring fall prevention action.

The above is the ring supply device (II), (II) '. Next, the ring insertion device (III) will be described with reference to FIGS. 7 and 8. In FIG. 7, (41) is a horizontal member. The horizontal member (41) is not shown in detail at both ends for the lifting device (42) using a known nut and screw mechanism.
The rails (43) mounted and fixed to the main machine frame (6) can be moved up and down.

Further, a rail (44) is fixed to the upper surface of the horizontal member (41), and a support base (45) of the body of the ring insertion device (III) is mounted on the rail (44) by a known nut and screw mechanism. It is mounted slidably by a sliding device using. A chain wheel (46) is fixed to the tip of the screw rod (46) ',
The chain wheel (46) and the chain wheel (25) of the ring supply device (II)
A chain is stretched between and, and the ring insertion device (III) and the ring supply device (II) are appropriately interlocked with each other by a drive source so that they can be moved toward and away from the conveyor device (I). ing.

On the other hand, the main body of the ring supply device (III) is shown in FIG.
It is composed of a _first cylinder (C ₁ ) and a second cylinder (C ₂ ), as shown in, and the ring inserter (48) is attached to the tip of the piston rod (47) of the first cylinder (C ₁ ). It is fixed.

The ring inserter (48) has a frustoconical end portion (48A) that serves as a guide when entering the core tube (T) of the product roll and, at the same time, the middle portion (48A).
B) has a cylindrical shape that matches the inner diameter of the core tube (T), while the rear end portion (48C) has a cylindrical shape that matches the inner diameter of the ring (R).

The second cylinder (C ₂ ) is the first cylinder (C ₂ ) described above.
_It is mounted on the piston rod (47) of ( ₁ ) and the rod (4
7) The outer cylinder (49) of the second cylinder (C ₂ ) is arranged so as to slide on the upper part, and the tip portion (49) ′ of the outer cylinder (49) is arranged.
Has a hollow cylindrical cross-section and is slidable on the rear end portion (48C) of the ring inserter (48).

Further, the cam (50) is fixed to the lower surface of the outer cylinder (49) of the second cylinder (C ₂ ), and the cam (50) is the ring holder (34) of the ring supply device (II). ),
The cam followers (40) and (40) 'mounted on the (34)' can be engaged.

In FIG. 7, (51) is the ring (R) as described above.
It is a lateral deviation prevention device for preventing lateral deviation of a roll to be processed during insertion.

The roll end face protection ring insertion device of the present invention has the above-mentioned structure, and its operation will be described. First, as shown in FIG. 2, the ring is supplied to the conveyor (I) at a position corresponding to the width of the roll to be processed. Both the device (II) and the ring insertion device (III) are set in conjunction with each other, and the ring insertion device (III) is set at a height corresponding to the diameter of the roll, and then the automatic ring insertion operation is started. To do.

Then, when the ring (R) is randomly placed in the ring hopper (h) and the ring lift belt (12) of the ring supply device (II) is run, the ring (R) placed in the hopper (h) is , Sliding down along the slope of the bottom surface of the hopper (h), reaching the outlet of the hopper (h), and falling into the gap between the guide plate (17) and the belt (12) as shown in FIG.
The posture is corrected and it stands upright.

In this state, the belt (12) then travels, the crosspiece (13) on the belt (12) arrives at the part, and the crosspiece (13) scoops up the ring (R), as shown in FIG. As the crosspiece (1
3) Place them on top of each other and lift them up.
Since the guide plate (16) is installed on the side surface of 2), the ring (R) is prevented from falling from the crosspiece (13).

In this way, when the ring (R) is lifted to the opening (14) of the frame (8) as the belt (12) runs, the ring (R) goes from the opening (14) to the ring rolling rail (26). And the ring stopper (29) at the end (D) of the rail (26) stops the ring from falling, and the ring (R) is sequentially transferred onto the falling rail (26) without further falling. To be done.

Thus, when the ring (R) is fully loaded on the fall rail (26), the sensor (S) operates and the ring lift belt (1
The operation of 2) is stopped.

On the other hand, when one ring is held by the ring holder by the action of the ring inserting device described later, the roll to be processed arrives at a predetermined position of the ring inserting device (II) by intermittent pitch feed of the conveyor (I). Then, the first cylinder (C ₁ ) is operated and the piston rod (47) of the _first cylinder (C ₁ ) is projected. At this time, the second cylinder (C
_{The second} cylinder (C ₂ ) is actuated so that ₂ ) becomes a position retracted with respect to the roll to be processed on the piston rod (47).

By doing so, the ring supply device (II)
Ring inserter (48) passes through the hollow part of the ring (R) held by the ring retainers (34), (34) 'of the ring inserter (48), and the ring (R) is the rear end cylinder of the ring inserter (48). Division (48
It is located on C) and the tip conical portion (48A) and the intermediate portion (48B) are fitted into the hollow holes of the core tube (T).
FIG. 8 (b) shows the center of the core tube (T) and the ring insertion tool (4
8) Shows the state where the centers are accurately aligned.

After the ring insertion tool is inserted as described above, the second cylinder (C
₂ ) is advanced until the tip portion (49) 'of the outer cylinder (49) is positioned on the outer circumference of the end portion of the core tube (T). (See FIG. 8 (c)) At this time, the ring (R) transferred onto the rear end cylindrical portion (48C) of the ring inserter moves forward with the outer cylinder distal end portion (49) 'and the core tube. (T) is transferred up and the intended ring insertion is achieved.

By the way, when the ring insertion as described above is achieved,
In order to allow the transfer of the ring, the holding of the ring in the ring holders (34), (34) 'must be released.

Therefore, the execution of the holding and releasing of the ring will be described below. As described above, the outer cylinder (49) advances by the operation of the second cylinder (C ₂ ), but at this time, the cam fixed to the outer cylinder (49) is fixed. (50) also moves forward together at the same time,
The ring holders (34) and (34) ′ shown in FIG. 2 (a) are engaged with the cam followers (40) and (40) ′ of the ring holders (34),
The lower part of (34) 'is pivotally opened (see FIG. 3 (a)), and the side holding of the ring, which is in the U-shaped groove of the holders (34), (34)', is released. Ring (R) is an external cylinder (49)
Along with the forward movement of the outer cylinder (49), it is inserted into the core tube (T). (Refer to FIG. 8 (c)) Further, the ring releasing rotation operation of the ring holders (34) and (34) 'is performed by the ring stopper (2) by the gears (35) and (32).
9), the stopper (29) is rotated clockwise against the elasticity of the spring (31) to release the ring fall prevention at the end of the ring fall rail (26), so the ring rolls out. And then the upper protrusion (3) of the ring retainer (34).
8) is stopped, and thus the ring fall rail (2
One holder (34), (34) 'upper ring can be taken out from 6).

When the above ring insertion operation is completed, the first cylinder (C ₁ ) and the second cylinder (C ₂ ) return to their old positions, so the cam (50)
The cam followers (40), (40) 'are disengaged, and the spring force of the spring (31) causes the ring stopper (29) to return to the old position, and the movements thereof are changed to the gears (32), (35), (35). Is transmitted to the ring holders (34), (34) 'via the ‘
(34) ′ also returns to the old position.

When the ring retainer (34) returns to the old position, the ring (R) taken out by the projection (38) is dropped into the retainers (34) and (34) ', and the ring is retained. It is sent to the V-shaped portion formed at the tips of the tools (34) and (34) 'and the preparation for the next time is simultaneously performed.

(Effect of the invention) As described above, the present invention comprises a conveyor for transporting rolls, a ring supply device and a ring insertion device installed on the side of the conveyor, and a ring holder of the ring supply device. One ring is held, the piston rod of the first cylinder of the ring inserting device is passed through the held ring, and the tip of the rod is fitted into the roll core tube. The outer cylinder of the cylinder is moved forward and the ring is inserted into the core tube by the outer cylinder, and the insertion and fitting of the roll end face protection ring, which has conventionally been performed manually, can be performed mechanically and automatically. It can be performed accurately and has a remarkable effect of achieving rationalization of the operation of inserting the guard ring.

The invention according to claim 2 is, as an embodiment thereof, a cam fixed to the outer cylinder engages with a cam follower fixed to the holder immediately before the outer cylinder of the second cylinder contacts the ring.
Since the ring holding by the holder is released, the ring can be inserted by the outer cylinder very smoothly, and it is expected to be effective in rationalizing the ring mounting work.

[Brief description of drawings]

FIG. 1 is a side view showing an outline of a roll end face protection ring insertion device of the present invention, FIG. 2 is a plan view showing an outline of the same device, and FIG. 3 (a) is a side view outline diagram of a ring supply device.
FIG. 4B is a sectional view taken along line AA in FIG. 3A, FIG. 4A is a schematic view of a main part of the ring supply device, and FIG. 4B is C- in FIG. 4A. C sectional view, FIG. 5 is a schematic front view of the ring supply device, FIG. 6 is an explanatory diagram showing a mode of receiving the ring in the ring supply device, FIG. 7 is a schematic front view of the ring insertion device, and FIG. ), (B) and (c) are operation explanatory views showing an inserting process in the ring inserting device, FIG. 9 (a) is a perspective view of the roll before inserting the protective ring, and FIG.
FIG. 6B is a perspective view of the roll after the holding ring is inserted. (I) ... conveyor, (II), (II) '... ring supply device, (III), (III)' ... ring insertion device, (3
4), (34) '... Ring holder, (40), (40)' ...
… Cam follower, (C ₁ ) …… first cylinder, (C ₂ ) …… second cylinder, (47) …… piston rod, (48) ……
Ring insert, (49) …… Outer cylinder, (50) …… Cam.

Claims (2)

[Claims] 1. A conveyor for intermittently conveying a roll having a sheet-shaped material wound on a core tube in a direction orthogonal to the traveling direction, and a conveyor provided on the side of a required stop position of the roll, A ring supply device having a holder that can be opened and closed to hold a ring fitted to the end of the roll, and the required stop position on the conveyor and the ring holder are arranged on substantially the same straight line, and are held by the holder. A ring inserting device for fitting a ring to the roll end surface, the ring inserting device being mounted on a cylinder rod of the cylinder and a second cylinder of which the outer cylinder is slidable. A first cylinder extending through a ring retained by the retainer, the rod of which extends to retain the ring between the retainer and the roll end face, while the second cylinder Extrusion until end surfaces of the rolls from the holder position the retained ring, roll end face protective ring insertion device, characterized in that for fitting the ring on the roll end face. 2. A conveyer for intermittently conveying a roll having a sheet-shaped material wound on a core tube orthogonally to the traveling direction, and provided on the side of a required stop position of the roll conveyed by the conveyer, A ring supply device having a holder that can be opened and closed to hold a ring fitted to the end of the roll, and the required stop position on the conveyor and the ring holder are arranged on substantially the same straight line, and are held by the holder. A ring insertion device for fitting a ring to the roll end surface, the ring insertion device being formed by a first cylinder and a second cylinder mounted on a cylinder rod of the first cylinder. The tip of the piston rod of the cylinder is fixed with a frustoconical ring inserter that can be fitted into the core tube and can be fitted into the ring behind it, while the second cylinder has the same diameter as the ring. An outer cylinder having a front edge and slidable on the piston rod of the first cylinder, and a cam fixed to the outer cylinder and extending from the outside of the outer cylinder to the front of the outer cylinder, and the cam. A roll end face protection ring insertion device, wherein an engageable cam follower is provided in a ring supply device, and the ring holder is opened and closed by engagement of both.