JP2012025505A - Web roll lifting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a web roll to be simply and easily set on a packaging machine.SOLUTION: The web roll lifting device includes: a table 32 that supports the web roll for the packaging machine and is provided with a sliding mechanism for sliding the web roll in the axis direction to carry it outward; a rising/falling mechanism 12 that raises or falls the table; and a carriage 11 that supports the rising/falling mechanism and moves the rising/falling mechanism together with the table. The table comprises a pair of rollers 35 parallelly arranged in V shape in a plurality of stages.

Description

  The present invention relates to a lift device for a raw roll, and more specifically to an apparatus used when setting a raw roll on a packaging machine.

  As is well known, an automatic packaging machine wraps an article to be packaged using a strip-shaped packaging film continuously supplied from a film supply apparatus, and seals and cuts a predetermined position to produce a package. .

  This film supply device rotatably supports an original roll obtained by winding a packaging film into a roll, and feeds the packaging film from the original roll and supplies it to the packaging machine body side. As a matter of course, the supply of packaging film from one original roll is limited, and when all of the wound packaging film is unwound, the packaging film is transferred from another original roll. There will be a splicer that will do this switching automatically. This splicer rotatably supports a plurality of (usually two) original fabric rolls. And the packaging film (B) is a packaging film by connecting the front-end | tip part of the packaging film (B) of the other original fabric roll to the termination | terminus site | part of the packaging film (A) from one original fabric roll. Following (A), it will be supplied to the packaging machine body side.

  As described above, a splicer in which a plurality of original rolls are set automatically connects the front and rear ends of the packaging film fed out from each original roll and continuously supplies the packaging film to the packaging machine body. Although it is possible, it is necessary to set it to the original roll support shaft or the like at a predetermined timing. And conventionally, the operation | work which sets an original fabric roll to an original fabric roll support shaft etc. is performed manually. In other words, while maintaining the state where the operator lifts the original roll up to the height of the original roll support shaft, it is attached so that the original roll support shaft penetrates into the center paper tube of the original roll, and then the original roll is inserted. Both ends of the original fabric roll are fixed and set with a pair of fixing claws provided on the anti-roll support shaft.

Japanese Utility Model Sho 61-178895

  In particular, in the case of a type in which the raw roll is set on the upper part of the packaging machine, it is necessary to lift the heavy roll of the roll to near the height of the face, which is a heavy labor for an operator who does not have physical strength. In addition, there is a high risk of being dropped and injured. Therefore, it is conceivable to apply a luggage lifting device that lifts an article up to a predetermined height as shown in Patent Document 1. When the original fabric roll is placed on the table that moves up and down in the apparatus disclosed in Patent Document 1, when the table is raised, the original fabric roll placed on the table moves on the table and is initially The installed state cannot be maintained. Further, when the table is raised to a desired height position, the original roll placed on the table is moved in the axial direction and set on the original roll support shaft, but is moved while sliding on the table. Since the belt-like film wound around the roll is rubbed and distorted, it is necessary to move and transfer the roll in a state where it is slightly lifted from the table. Absent.

  In order to solve the above-mentioned problems, the present invention includes (1) a mechanism for supporting an original roll for a packaging machine, and a mechanism for sliding the original roll in the axial direction and carrying it outward. A table, an elevating mechanism for elevating the table, and a carriage that supports the elevating mechanism and moves the elevating mechanism together with the table. With the original roll placed on the table, the lifting mechanism is operated and moved up to a desired height position. The original roll is moved in the axial direction with one end surface (table carry-out side) in the axial direction of the original roll facing the support portion of the original roll on the packaging machine side. Since the table includes a mechanism for sliding the original roll in such a direction, the original roll can be moved smoothly and set on the packaging machine side. Thus, while being able to go to a desired position with a trolley | bogie, an original fabric roll can be raised easily to a high position, and work efficiency improves. Furthermore, the burden of replacing the original roll is reduced, and the original roll is not lifted to a higher position by hand, so the burden of replacing the film roll is reduced. Furthermore, it is not necessary to manually lift the roll of the raw material to a high position, and safety is improved.

  (2) In the table, a pair of rollers arranged in a V shape may be arranged in parallel in a plurality of stages. If it does in this way, an original fabric roll can be held stably and it can control that a side shake etc. occur during an upward movement. Moreover, it can respond even if it is the original fabric roll of a different roll diameter. As is apparent from the pair of rollers 35 in the embodiment, the V-type does not necessarily have to be connected at the lowest position of the center, and the central portion may be separated. The V type may be referred to as an inverted letter C.

  (3) On the premise of the invention of the above (2), the angle formed by the pair of rollers may be configured to be changeable. According to the present invention, an appropriate angle can be set according to the roll diameter of the original roll, and the original roll can be firmly supported.

  (4) A plurality of the tables may be provided. The plurality of tables may be arranged vertically or horizontally. In any case, it is preferable that each table can be moved up and down independently because the center of gravity is lowered and stabilized. In this way, since a spare original fabric roll can be placed, workability is improved.

  (5) The table may be linked to the lifting mechanism so as to be rotatable in a horizontal plane. In this way, even when the work space is limited, the position, posture, and orientation of the original roll can be easily changed.

  In the present invention, the table supporting the original fabric roll can be raised by the elevating mechanism, and can be moved and transferred smoothly to the packaging machine side by the sliding mechanism. The burden of replacement work is reduced.

It is a front view showing a preferred embodiment of the present invention. FIG. It is the side view.

  1 to 3 show a preferred embodiment of the lift device for a roll of the present invention. The fabric roll lifting device 10 of the present embodiment includes a carriage unit 11, an elevating mechanism 12 erected on the carriage unit 11, and an original fabric roll support unit 13 that moves up and down in conjunction with the elevating mechanism 12. And comprising.

  The carriage unit 11 includes a pair of base frames 15 arranged at regular intervals on the left and right sides, a front wheel 16 connected to the front end side of the base frame 15, and a rear side connected to the rear end side of the base frame 15. And a wheel 17. The front wheel 16 is actually connected to the lower surface of the connecting plate 18 attached to the front end of the base frame 15 via a bearing portion 19. Similarly, the rear wheel 17 is connected to the lower surface of a connection plate 18 ′ attached to the rear end of the base frame 15 via a bearing portion 19 ′. Thereby, the rotating shaft 16a of the front wheel 16 and the rotating shaft 17a of the rear wheel 17 can be independently turned 360 degrees in a horizontal plane, and the carriage unit 11 can be moved in an arbitrary direction, and a small turn is possible. Therefore, the position adjustment can be easily performed.

  The elevating mechanism 12 includes a pair of inverted U-shaped guide columns 20 that are erected and connected to the rear upper surface of each base frame 15 of the carriage unit 11 and the rear wheel 17 (connection plate 18 ′). . The first connection plate 23 is attached to cross over the rear upper part of the pair of guide columns 20. An operation handle 22 is rotatably attached to an intermediate portion of the first connection plate 23 in the left-right direction. A handle 22a is attached to the distal end of the arm 22b, and the operation handle 22 is rotatably supported by the first connecting plate 23 via a bearing portion 22c attached to the proximal end of the arm 22b. Further, a winding portion 24 for winding one end side of a chain (not shown) is connected to the bearing portion 22c.

  On the other hand, the second connecting plate 26 is attached so as to cross over the front upper end vicinity portion of the pair of guide columns 20. A pulley 25 is rotatably attached to an intermediate portion of the second connecting plate 26 in the left-right direction. The pulley 25 hangs a chain wound around the winding portion 24 described above and changes its direction downward. The tip of the chain is connected to the raw roll support portion 13. Thereby, the original fabric roll support part 13 can be moved up and down by rotating the operation handle 22 forward and backward to wind the chain around the take-up part 24 or to send out the taken-up chain. These mechanisms can basically adopt the same kind of configuration as that disclosed in Patent Document 1 and the like.

  The raw roll support portion 13 moves the guide column 20 forward and backward by a first pulley 28 provided on the lower side of the inclined plate 27 linked to the front side of the guide column 20 and a second pulley 29 provided on the upper end of the inclined plate 27. The support arm 30 is connected to the lower end of the inclined plate 27 so as to protrude forward, and a V-shaped table 32 disposed on the support arm 30 is provided. The inclined plate 27 tries to rotate counterclockwise in FIG. 1 under the weight of the support arm 30 and the table 32 linked to the lower end of the inclined plate 27. Both the first and second pulleys 28 and 29 rotate in the rotating direction. Since it is the direction which hits the guide column 20, it is firmly linked. Further, the pair of inclined plates 27 are integrated by being linked by the third connecting plate 31. Then, the tip of the chain is connected to the third connection plate 31. As a result, when the operation handle 22 is rotated in the forward direction as described above, the chain is wound around the winding portion 24, so that the tip of the chain rises, and the third connecting plate 31 and the original fabric follow the same. The roll support part 13 moves upward.

  The V-shaped table 32 includes a plurality of rows of a pair of left and right rollers 35 arranged in a V shape that constitutes a support surface of the raw roll in the front-rear direction. The specific configuration is as follows. First, a V-shaped bottom plate 40 is disposed so as to straddle the pair of support arms 30, and the bottom plate 40 is fixed to the pair of support arms 30 by a connecting plate 41. On the upper surface of the bottom plate 40, a pair of elongated bearing support plates 42 each having a substantially U-shaped cross section are disposed on the left and right sides, and the plurality of rollers 35 are rotatably supported by the pair of bearing support plates 42. . As a result, the plurality of rollers 35 can be freely rotated by free rollers. The plurality of rollers 35 arranged on the left and right are arranged in parallel so as to be lined up in the front and rear, respectively, and the rotation shaft thereof is set to be parallel to the inclined surface of the bottom plate 40 to which the rollers 35 are respectively attached. Thus, the plurality of rollers 35 arranged on one side of the left and right are respectively flush with the roller surfaces and parallel to the V-shaped bottom plate 40. Since the rotation axis is the direction in which the rollers 35 are arranged, that is, the direction orthogonal to the front-rear direction, when the original roll 50 is placed on the V-shaped table 32 as shown in FIG. The outer peripheral surface is supported in contact with the plurality of rollers 35. And since the direction of the rotating shaft of each roller 35 is orthogonal to the axial direction (width direction) of the original fabric roll 50, when trying to move the original fabric roll 50 in the axial direction, each roller 35 rotates. Promote that movement. Therefore, the original fabric roll 50 can smoothly move in the axial direction, that is, move forward on the table 32.

  Further, in the V-shaped table 32, an original roll 50 placed on a V-shaped support surface composed of a plurality of rollers 35 is inadvertently moved in the axial direction (the longitudinal direction of the table 32). In order to prevent them from falling, stopper mechanisms are provided at both front and rear ends. That is, the V-shaped plate 33 erected upward is connected to the front end of the bottom plate 40. The front V-shaped plate 33 is provided with a bearing portion 36 at one end, and one end of a movable stopper plate 38 is rotatably linked to the bearing portion 36, and a notch 38 a provided at the other end of the movable stopper plate 38. Are connectable to a connecting portion 37 provided at the other end of the V-shaped plate 33. In addition, a receiving portion 39 is provided in the central valley portion of the V-shaped plate 33. As shown in FIG. 3, when the movable stopper plate 38 is separated from the connecting portion 37 and the other end is positioned below, the receiving portion 39 is movable. The predetermined portion of the lower surface of the stopper plate 38 is in contact with the receiving portion 39 so as not to descend further. Therefore, when the cut 38 a provided at the other end of the movable stopper plate 38 is connected to the connecting portion 37 in a state where the original fabric roll 50 is placed on the table 32 (roller 35), the stopper plate 38 becomes the V-shaped plate 33. Therefore, the raw fabric roll 50 is prevented from protruding forward. When the other end of the movable stopper plate 38 is separated from the connecting portion 37, the front side of the table 32 is opened, so that the original fabric roll 50 can be carried forward from the table 32.

  On the other hand, a fixed stopper plate 46 having a predetermined shape is connected to the rear end side of the bottom plate 40. This fixed stopper plate 46 can be constituted by connecting one or a plurality of plates, and prevents the rear end surface of the original fabric roll 50 placed on the roller 35 from contacting and moving to the right of the clothing store. It only has to be able to do it.

  Moreover, since the lift apparatus 10 for original fabric rolls of this embodiment comprised the table 32 in the V shape, as shown in FIG. 3, it supports reliably also of any of the original fabric rolls 50 and 50 'from which a diameter differs. it can.

  Next, the operation | work which sets an original fabric roll to a packaging machine using the lift apparatus 10 for an original fabric roll of the structure mentioned above is demonstrated. First, the operation handle 22 is rotated in a predetermined direction to lower the original fabric roll support portion 13 (table 32). In this state, the material roll is set on the table 32. Although this operation is performed manually, since the table 32 is located at a low position, it can be relatively easily performed. In addition, at least in a state where the original fabric roll is set on the table 32, the movable stopper plate 38 is connected to the connecting portion 37 to prevent the original fabric roll from being unintentionally detached from the table 32. Moreover, since the lift apparatus 10 for original rolls is provided with the trolley | bogie part 11, it can move to arbitrary positions. Therefore, if the original fabric roll lifting device 10 is moved to the storage area of the original fabric roll and the original fabric roll is placed on the table 32 there, it is moved to a predetermined position in front of the packaging machine in that state.

  Next, the operation handle 22 is rotated in the opposite direction to the above to raise the table 32. Along with this, the fabric roll also moves up. This process only requires the operation handle 22 to be rotated, and by appropriately adjusting the length of the arm 22b, the operation handle 22 can be rotated even with a relatively small force to raise the table 32 and hence the original roll. Can do. With the paper tube 50a at the center of the original roll opposed to the original roll support shaft on the packaging machine side, the ascent of the table 32 is stopped, the movable stopper plate 38 is detached from the connecting portion 37, and the front of the table 32 Is released.

  In this state, the original fabric roll is pushed out forward of the table 32 along the axial direction. Then, the roller 35 in contact with the original roll rotates and assists its forward movement, and the original roll smoothly jumps forward from the table 32 and is positioned in front of the original roll roll supporting shaft of the packaging machine. (Not shown).

  In the embodiment described above, an example in which one table 32 is arranged has been shown, but the present invention is not limited to this, and a plurality of tables 32 may be provided on the top and bottom or on the left and right. In this way, a spare original fabric roll can be placed, and workability is improved without having to return to the storage area of the original fabric roll every time replacement work is performed.

  In the above-described embodiment, the inclination angle of the roller 35 (the angle formed by the pair of left and right rollers) is fixed, but the angle formed by the pair of rollers 35 may be made changeable. As described above, even if the angle is fixed, the roll can be handled with different roll diameters. However, by changing the angle, an appropriate angle can be obtained according to the roll diameter of the roll. As a configuration for changing the angle formed, the outer one of the pair of bearing support plates 42 holding the roller 35 is moved up and down, or the bottom plate 40 is divided into left and right to center the valley portion. It can be realized by various configurations such as being able to rotate by a predetermined angle and fixing at a desired angular position.

  In the above-described embodiment, the table 32 is fixedly installed on the support arm 30. However, the present invention is not limited to this, and the table 32 may be configured to be rotatably supported in a horizontal plane. If it does so, since the direction of the front-back direction of the trolley | bogie part 11 and the axial direction of the table 32 (original fabric roll) can be made into a desired relative angular relationship, it functions effectively when the work space is restricted. To do.

DESCRIPTION OF SYMBOLS 10 Lift apparatus 11 for raw rolls Cart unit 12 Lifting mechanism 13 Original roll support part 32 Table 35 Roller

Claims (5)

A table having a sliding mechanism for supporting the original roll for the packaging machine, and sliding the original roll in the axial direction to carry it outward.
An elevating mechanism for elevating the table;
A lift apparatus for an original roll, comprising: a carriage that supports the lifting mechanism and moves the lifting mechanism together with the table.   The said table is a lifting apparatus for raw fabric rolls according to claim 1, wherein a pair of rollers arranged in a V shape are arranged in parallel in a plurality of stages.   The lift device for an original roll according to claim 2, wherein an angle formed by the pair of rollers is changeable.   The said table was provided with two or more, The lift apparatus for original fabric rolls in any one of Claims 1-3 characterized by the above-mentioned.   The said table is linked with the said raising / lowering mechanism so that rotation in a horizontal surface is possible, The lift apparatus for raw fabric rolls in any one of Claims 1-4 characterized by the above-mentioned.

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