JPH11278730A - Safety device for winding or rewinding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the safety of the work by avoiding a danger that a hand or a finger is caught in a clearance between both ends of a core and both core receivers of a winding or rewinding machine with a suitable means without generating a trouble in the coil achanging work. SOLUTION: A lever 6 is pivotally fitted to a side surface of both core receivers 5 at a part just under both ends of a core 2, and a bite preventing plate 7 for preventing being caught of a hand or a finger in a clearance between both ends of the core 2 and both the core receivers 5 is pivotally fitted to a front end of both the levers 6 with the predetermined space from both the ends of the core 2 at one end thereof so as to cross an upper part of both the placement parts 5a and freely to be stood. A roller 8 for abutting on both the ends of the core 2 is fitted to a rear end of both the levers 6, and both the levers 6 are energized by a spring 9 in the oscillating direction for lowering a front end 6F than a pivotal fitting part 6M and for raising a rear end 6B than the pivotal fitting part 6B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to, for example, a metal foil,
The present invention relates to a safety device for a winding or rewinding machine used in separators, slitters, printing machines, coating machines, and the like of paper and plastic sheets.

In this specification, unless stated otherwise, the terms "front and rear, left and right" refer to a worker who performs operations such as removal and mounting of a winding core of a winding or rewinding machine, and "front" refers to a worker. Seen from the front, "rear" means the same side, and "left and right" means left and right as viewed from the operator.

[0003] In this specification, "hands and the like" include fingers, arms, work clothes and the like of a worker of a winding or rewinding machine.

[0004]

2. Description of the Related Art FIG. 7 shows a conventional separator for a polymerized aluminum foil. The separator comprises a rewinding machine (101) provided with a rewinding core (rewinding shaft) (1) for polymerized aluminum foil, and a winding core (rewinding shaft) (rewinding shaft) for each of the separated aluminum foils. 2) two winders (102) equipped with:
A plurality of guide rolls (103A to 103F), a touch roll (104) for preventing winding looseness of each aluminum foil, and an upper blade
(3) and a slitter (105) having a lower blade (4).

[0005] The polymerized aluminum foil unwound from the rewinding core (1) is guided to a slitter (105) by guide rolls (103A, 103B), and both ends of the polymerized aluminum foil are separated by the slitter (105). Is removed. The polymerized aluminum foil is further separated upward into two aluminum foils when guided upward by guide rolls (103C, 103D).
Then, each separated aluminum foil is
(103E, 103F) and the touch roll (104) guides the two winding cores (2), and is wound on each winding core (2) while being pressed by the touch roll (104).

Below the left and right ends of the winding core (2) of the two winding machines (102), there are provided core receiving tables (5) extending back and forth. Both core receiving bases (5) The core (2) on the top surface, from the part directly below both ends to the front part by a predetermined distance from this, the core (2) in the non-mounted state ) Is provided. And both core support
The both ends of the core (2) in the non-mounted state are moved back and forth on the mounting portion (5a) of (5). Specifically, first, when a predetermined amount of the separated aluminum foil is wound around the core (2), both ends of the core (2) are removed from these supporting devices (not shown), and Place on the rear end of the mounting part (5a) of the cradle (5). Then, roll the both ends of the removed core (2) forward from the rear end of the mounting part (5a) and move it to a position where it is easy to perform the work.Remove the aluminum foil coil from the core (2). . The core (2) with the coil removed is
By the operation reverse to the above, both ends are remounted to the support device.

[0007]

In each of the two winders (102) of the separator described above, there is a gap (S) between both ends of the core (2) and the both core receivers (5). When the winding core (2) is being rotated, there is a risk that fingers or the like may be caught in the gap (S). In terms of work safety,
It is obvious that it is necessary to prevent the finger or the like from being caught in these gaps (S) .However, such a clogging prevention means is attached to, for example, both core holders (5) by a usual method. Therefore, in the above-described winding coil replacement work, it is necessary to remove and re-attach the winding prevention means one by one by a human operation, which may hinder the work. The fact is that it has not been done.

The present invention has been made in view of the above situation, and there is a danger that a finger or the like may be caught in a gap between both ends of a winding core and both core receiving stands in a winding or rewinding machine. An object of the present invention is to improve the safety of work by avoiding the work by using an appropriate means that does not hinder the coil replacement work or the like.

[0009]

In a safety device for a winding or rewinding machine according to the present invention, a core supporter extending back and forth is disposed below both left and right ends of a core. A mounting portion on which both ends of the non-mounted core are mounted is provided from a portion immediately below both ends of the core to a front portion by a predetermined distance therefrom, and both ends of the core in the non-mounted state are mounted on the mounting portion. In the winding or rewinding machine in which the both ends are moved back and forth, levers are pivotally mounted on the side surfaces of both winding core receiving bases directly below both ends of the winding core, and both ends of the winding core and both winding cores are provided at front ends of both levers. A wind-in prevention plate for preventing a finger or the like from being wound into a gap with the cradle is provided at a predetermined distance from both ends of the winding core, and pivots at one end thereof so as to cross over the mounting portions and undulate freely. Rollers are attached to the rear ends of both levers and are in contact with both ends of the core. Both levers are biased by springs in the swinging direction of lowering the front part from the pivoted part and raising the rear part, and both ends of the core in the non-mounted state are from the rear end of the mounting part of both core holders. When the lever is moved forward, the levers are swung in the above-mentioned direction by the restoring force of the spring, and the entanglement prevention plate is brought up against the mounting portion, so that the entanglement prevention plate is lower than the mounting portion. It is intended to be submerged in.

[0010] According to the above-mentioned safety device, the winding-in prevention plate surely prevents the finger or the like from being wound into the gap between the both ends of the rotating core and the two core receiving stands. In addition, since only the rollers attached to the rear ends of both levers are in contact with both ends of the core, there is no possibility that the rotation of the core will be hindered.

When both ends of the core in the non-mounted state are moved forward from the rear ends of the mounting portions of the both core holders, both levers are swung in the above direction by the restoring force of the spring. At the same time, the entanglement prevention plate is raised up against the mounting portion, so that the entanglement prevention plate is lowered below the mounting portion. The forward movement of both ends of the core in the mounted state can be performed without any trouble.

When both ends of the core in the non-mounted state are moved toward the rear end of the mounting portion of the two core holders from the front portion thereof, the both ends of the core are positioned behind the mounting portion. The reverse operation of moving the lever forward from the end, that is, the roller hits both ends of the winding core, and both levers are swung in the direction of raising the front part from the pivoted part and lowering the rear part, thereby preventing the winding. Since the board is raised above the mounting section and laid down by its own weight so as to cross over the mounting section, it does not require extra human work as well, and it is necessary to extend the back of both ends of the core in the non-mounted state. Movement can be performed without hindrance.

In the above-mentioned safety device, each lever is constituted by pivotally attaching a single lever component to one of both side surfaces of the core receiving pedestal, or by winding a pair of lever components. While being pivotally attached to both sides of the core receiving pedestal, there may be a case where both members are connected to each other at at least one of these pivoted portions and the rear end portion, in consideration of installation space, strength, etc. It is appropriately selected. The shape of the lever may be any as long as it does not hinder rotation and movement of both ends of the winding core, and can arrange the winding prevention plate and the roller at desired positions. It is U-shaped or the like.

The roll-in prevention plate may be pivotally attached to the front end of each lever one by one, or may be pivotally attached to a plurality of upper and lower plates. In the latter case, each of the winding prevention plates is arranged to be shifted back and forth so as not to interfere at the time of undulation. When the lever is constituted by a pair of lever components, one or more roll-in prevention plates may be pivotally attached to the front end of each lever component.

The roller is a component that only comes into contact with both ends of the rotating core, and thereby the lever is held in a posture such that the anti-winding plate does not contact both ends of the rotating core.
Further, since the roller can be rotated in synchronization with the rotation of both ends of the core, there is little need to apply a load to the rotation of the both ends of the core. The form and material of the roller are not particularly limited as long as they can fulfill the above functions.

As the spring, a tension spring is usually used, and one end is attached to the lever front and the other end is attached to the core receiving base so as to pull the front of the lever downward. However, it is also possible to use a compression spring, in which case one end is attached to the lever rear and the other end is attached to the core receiving base so as to push the lever rear upward.

In the safety device for a winding or rewinding machine according to the present invention, an anti-winding plate that is erected and sunk below the mounting portion is provided at the front ends of both levers on the side opposite to the core receiving base. It is preferable that a stopper be provided to keep the hook from falling down. With such a stopper, when the both ends of the core in the non-mounted state are moved from the front part toward the rear end of the mounting part of the both core supports, the winding prevention plate is placed on the mounting part. It is possible to more reliably perform the operation of protruding above the mounting portion so as to cross over the mounting portion by its own weight.

Further, in the above-mentioned safety device, a stopper is provided on a side surface of each of the two winding core receiving bases at a predetermined position to engage with both levers which are swung in the direction of lowering the front part and raising the rear part. preferable. With such a stopper, when the both ends of the core in the non-mounted state are moved from the front part toward the rear end of the mounting portion of both core holders, the rollers hit the both ends of the core. In addition, the operation in which both levers can be swung in the direction of raising the front portion from the pivot portion and lowering the rear portion becomes more reliable.

Further, in the above-mentioned safety device, it is preferable that stoppers are provided on the side surfaces of the both core supporters so as to stop the levers from swinging in the direction of raising their front portions and lowering their rear portions. With such a stopper, even if the spring comes off or the restoring force of the spring becomes weak, both levers swing in the direction of raising the front part and lowering the rear part, and the anti-winding plate is rotating. To avoid contact with both ends of the core. Also, instead of or together with the stopper, at the rear of both levers,
A stopper may be provided for engaging both levers with the upper surfaces of the core receiving bases to prevent the levers from swinging in the direction of raising their front portions and lowering their rear portions.

[0020]

FIG. 1 shows an embodiment of the present invention.
This will be described with reference to FIG.

As shown in FIG. 1, this embodiment corresponds to FIG.
The present invention is applied to the same separator as the conventional separator for a polymerized aluminum foil shown in FIG. 1, specifically, two winding machines (102) in the separator. FIGS. 2 to 6 show the winding core of the winder (102) on the left side of FIG.
The area near the right end of (2) is shown.

1 to 6, a safety device (10) for a winding machine according to the present invention is provided with a lever (6) at a portion directly below both ends of a winding core (2) on the side surface of both winding core supports (5). Pivotally attached to the front ends of both levers (6), the ends of the core (2)
An anti-winding plate (7) that prevents fingers and the like from getting into the gap (S) with the (5) is placed at a predetermined distance from both ends of the winding core (2), and the upper part of both mounting parts (5a) is It is pivotally mounted at one end so that it can cross and undulate, and the cores (2) are attached to the rear ends of both levers (6).
A roller (8) that contacts both ends is attached, and both levers are
(6) is urged by a spring (9) in the swinging direction of lowering the front part (6F) from the pivot part (6M) and raising the rear part (6B). When the part is moved forward from the rear end of the receiving part (5a) of the both core holders (5), both levers (6)
The restoring force causes the roll-up prevention plate (7) to swing up in the above-mentioned direction, and the roll-up prevention plate (7) is brought up against the mounting portion (5a), so that the roll-up prevention plate (7) is higher than the mounting portion (5a). It is designed to sink downward.

The two left and right core receiving bases (5) and the two left and right levers (6) constituting the safety device (10), and the anti-winding plate (7), the roller (8), and the spring attached thereto.
Since (9) is symmetrical in both cases, the detailed structure thereof will be described below with reference to FIGS.

The core receiving table (5) is a substantially vertical plate extending in the front and rear direction, and has a shallow recess formed in a portion of the upper surface except for both front and rear ends. The core (2) is a mounting portion (5a) at the right end. Both front and rear ends of the mounting portion (5a) are formed as concave arc surfaces along a part of the outer surface of the right end of the winding core (2).

The lever (6) is a pair of left and right lever components.
(61) Both lever constituent members (61) are plate-like bodies having a substantially semicircular shape when viewed from the left and right, and the lowermost portion of the intermediate portion of the member (61) is located on the left and right sides of the core support (5). It is swingably mounted to the surface of the core (2) directly below both ends by a lever mounting shaft (11) penetrating the core support (5).

A horizontal surface (62) is formed on the upper end of the front end of both lever constituent members (61), and a vertical surface (63) connected to the front edge of the horizontal surface (62) is formed on the front. Have been. A step (64) is formed at the center of the height of the vertical surface (63).

The vertical surface of the left lever component (61)
The lower end of the step (64) in (63) and the upper part of the vertical surface (63) of the right lever component (61) above the step (64) are pivotally connected to one end of the wind-in prevention plate (7). Is being worn. The entanglement prevention plate (7) has a substantially wing-like shape slightly longer left and right when viewed from the front, and the lower entanglement prevention plate (7) is
(5) is placed on the receiver (5a), and the upper anti-winding plate (7)
Is placed over the step (64) of both lever components (61). The width of the step (64) is made slightly larger than the thickness of the entanglement preventing plate (7) so that the two entanglement preventing plates (7) do not interfere with each other during their undulating operation.

A slightly lower portion of the step (64) on the left side of the front end of the left lever component (61), and the right lever component
(61) and the upper part of the step (64) on the right side of the front end,
A vertical plate-like stopper (12) that holds the raised anti-winding plate (7) so that it does not fall on the opposite side to the core support (5) projects forward from the vertical surface (63) It is formed as follows.

The roller (8) is rotatably mounted on a roller mounting shaft (13) mounted across the rear ends of both lever components (61).

A horizontal plate-like stopper (14) which engages with the rear end of the upper surface of the core receiving base (5) is attached to a portion near the rear end of both lever constituent members (61). A pin-shaped stopper (15) is provided on the right side surface of the core holder (5) to engage with the rear end portion of the convex arc surface of the right lever component (61). With these stoppers (14, 15),
The lever (6) does not swing in the direction of raising the front part and lowering the rear part.

The spring (9) is composed of a tension coil spring and has hooks (9a) at both ends. Then, one hook (9a) of the spring (9) is hooked into a hook hooking hole (17) of a spring mounting portion (16) provided in a downwardly protruding portion near the front end of the right lever component (61). The other hook (9a) is hooked on a hook hooking pin (18) attached to the right side of the core holder (5) below the spring attachment portion (16) by a required distance.

At the lower front of the lever mounting shaft (11) on the right side of the core receiving stand (5), the two levers, which can be swung in the direction of lowering the front part and raising the rear part, and a predetermined position (FIG. 5).
(d), a pin-shaped stopper (19) is provided.

Next, the operation or state of the safety device (10) will be described separately when the core is rotated (taken up), when the core is removed, and when the core is remounted.

First, when winding the aluminum foil by rotating the core (2), as shown in FIGS. 1 to 4, both ends of the core (2) are placed at a predetermined interval from both ends. Stand (5a)
Fingers to the gap (S) between the both ends of the rotating core (2) and both core receivers (5) by the winding prevention plate (7) folded down so as to cross over Is reliably prevented from being involved. At this time, since only the roller (8) is in contact with both ends of the core (2), there is no hindrance to the rotation of the core (2). The above state of the entanglement prevention plate (7) and the roller (8) is such that both levers (6) are in front of the pivotal connection (6M) by the spring (9).
(6F) is lowered and the rear part (6B) is raised, and both levers (6) are stopped by stoppers (14, 15) so as not to swing in the opposite direction. Is held by that.

When removing both ends of the winding core (2) from the supporting device of the winding machine (102) and removing the winding coil from the winding core (2), refer to FIGS. 5 (a) and 6 (a). As shown,
Both ends of the removed core (2) are placed on the rear end of the mounting portion (5a) of the both core receivers (5). Here, there is a slight gap between both ends of the placed core (2) and both levers (6), and both levers (6) do not receive the load of core (2). Is taken into account. Next, when both ends of the removed core (2) are rolled forward from the rear end of the mounting portion (5a), both levers (6) are pivotally connected (6M) by the restoring force of the spring (9). ), The front part (6F) is lowered and the rear part (6B) is raised.
At the same time, the lower entanglement preventing plate (7) and the upper entanglement preventing plate (7) are sequentially raised against the mounting portion (5a) (FIGS. 5 (b), (c) and 6 (b)). (c)). The raised prevention plate (7) is stopped by the stopper (12) so as not to fall to the side opposite to the core receiving table (5). Further, when both levers (6) are swung, all the entanglement preventing plates (7) are lowered below the mounting portion (5a) (see FIGS. 5 (d) and 6 (d)). Thereby, the both ends of the winding core (2) can be rolled forward without contacting the winding prevention plate (7). Then, when both ends of the winding core (2) are rolled to the predetermined positions, the winding coil is removed from the winding core (2). The two levers (6) are engaged with the stopper (19) in the swinging positions shown in FIGS. 5 (d) and 6 (d), and are prevented from swinging in the same direction any more. In this state, the roller (8) is the core placed on the receiver (5a).
It is located slightly higher than the axis of (2).

To remount both ends of the winding core (2) from which the winding coil has been removed to the supporting device of the winding machine (102), attach both ends of the winding core (2) Roll toward the end from a position ahead of this. Then, the roller (8) hits both ends of the core (2), and both levers (6) are swung in the direction of raising the front part (6F) from the pivoted part (6M) and lowering the rear part (6B). (See Fig. 5 (d)), whereby the upper anti-winding plate (7)
And the lower winding prevention plate (7) sequentially comes out above the mounting portion (5a) and is folded down by its own weight so as to cross over the mounting portion (5a) (FIGS. 5 (c) and (b)). And FIG. 6 (c) (b)). Core
(2) When both ends reach the rear end of the mounting portion (5a) of both core receiving trays (5) (see FIGS. 5 (a) and 6 (a)), the core (2)
Both ends are reattached to the support device of the winder (102) (Fig. 1
4), the winding operation is restarted.

In this embodiment, the present invention is applied only to the separator winding machine (102). However, the rewinding machine (101) has the same winding core receiving base as the winding machine (102). If it is provided, it is of course possible to apply the present invention to the rewinding machine (101).

[0038]

The safety device for a winding or rewinding machine according to the present invention is constructed as described above, so that a finger or the like can be inserted into the gap between both ends of the rotating core and both core receiving tables. Entanglement can be reliably prevented by the entrainment prevention plate,
As a result, the safety of the work can be improved, and there is no risk of interfering with the rotation operation of the core, and no extra human work is required. The back and forth movement can be performed without any trouble.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view schematically showing a separator for a polymerized aluminum foil provided with a winder to which the present invention is applied.

FIG. 2 is a sectional perspective view showing a safety device of the winder according to the present invention.

FIG. 3 is a side view showing the safety device of the winder according to the present invention.

FIG. 4 is a front view showing the safety device of the winder according to the present invention.

FIG. 5 is a side view showing the operation of the safety device for the winder according to the present invention.

FIG. 6 is a front view showing the operation of the safety device for the winder according to the present invention.

FIG. 7 is a longitudinal sectional view schematically showing a conventional separator for a polymerized aluminum foil.

[Explanation of symbols]

 (102)… Winding machine (2)… Core (5)… Core cradle (5a)… Placement part (10)… Safety device (6)… Lever (6M)… Pivot part (6M)… Front part (6B)… Rear part (S)… Gap between both ends of the core and both core supports (7)… Entrapment prevention plate (8)… Roller (9)… Spring

Claims (1)

[Claims] 1. A core supporter extending back and forth is disposed below both left and right ends of a core, and is not mounted from a portion immediately below both ends of the core on a top surface of both cores to a portion forward by a predetermined distance therefrom. In a winding or rewinding machine in which a mounting portion on which both ends of the core in the state are mounted is provided, and both ends of the core in the non-mounted state are moved back and forth on the mounting portion, A lever is pivotally mounted on the side of the platform directly below both ends of the core, and the front ends of both levers prevent entanglement of fingers and the like into the gap between both ends of the core and both core supports. A plate is spaced at predetermined intervals from both ends of the winding core, and is pivotally mounted at one end thereof so as to cross over the mounting portions and undulate freely, and a roller in contact with both ends of the winding core is provided at the rear ends of both levers. Both levers move in the swinging direction, lowering the front from the pivot point and raising the rear. When both ends of the core in the non-mounted state are moved forward from the rear ends of the mounting portions of the both core holders, both levers are swung in the above direction by the restoring force of the spring. A safety device for a wind-up or rewinding machine, wherein the wind-in prevention plate is set up against the mounting portion so that the wind-in prevention plate is lowered below the mounting portion.