JPH0571108U - Film reel support device for wrapping machine - Google Patents

Abstract

(57) [Abstract] [Purpose] By supporting the supporting device 5 of the film reel 7 on the lower part of the vertical rod 8B on the side of the machine frame 1A so as to be able to move up and down, the film reel 7 and the upper and lower parts supported by it can be Guide ring 51
(EN) Provided is a film reel support device capable of surely fitting the center lines of the A, 37 and the upper and lower shafts 35, 612 without shifting and surely mounting them in a regular position. [Structure] The upper guide ring 5 is provided on an upper portion of a vertical rod 8B erected on the side of the machine frame 1A of the lapping machine via an upper support plate 610.
1A is provided, while a lower rod 601 is provided with a vertical rod 8B provided with a rack 603 on the lower side thereof, which engages with the rack 603 and bears a pin-on 605 operated by a handle 604.
The base cylinder 602 is provided to be movable up and down.

Description

[Detailed description of the device]

[0001]

[Technical field of invention]

 The present invention relates to a supporting device for a film reel in a lapping machine, and more particularly to a supporting device for a film reel in a lapping machine for wrapping an object to be packaged such as a roll belt with a plastic film.

[0002]

[Prior Art]

 As a film reel supporting device in a conventional lapping machine for wrapping an object such as a roll bearer with a plastic film, there is, for example, Japanese Patent Publication No. 3-201109.

This is a cylindrical winding of a supply reel for supplying a plastic film in a lapping machine, in which a plastic film pre-stretched by a pre-stretching device wraps an object to be packaged such as a roll belt. The mold is supported on the support of a substantially vertical support stand for the film supply reel by means of an arm mounted on the support by a lower reel holder and an upper reel holder, and the upper part A base of an arm (carrier) provided with a reel holder is rotatably supported on the support by a horizontal shaft, and a lever extending from the arm of the upper reel holder and the support. The upper reel holder can be alternately locked at the locking position of the cylindrical reel of the film reel and the releasing position thereof by the engagement.

In Japanese Patent Application Laid-Open No. 3-201909, a support of a substantially vertical film supply reel support stand that supports a cylindrical winding type of a plastic film supply reel is described. It also describes that the height can be adjusted by moving it up and down with respect to the support part of the stand by a gear mechanism or the like.

Further, Japanese Utility Model Laid-Open No. 64-43649 discloses a roll of a bale wrapper that wraps an object to be wrapped such as a roll bale with a plastic film pre-stretched by a pre-stretching device. The film ribbon is attached to the bracket attached to the lower part of the pillar of the bale wrapper via the receiving shaft, and to the head of the pipe that is always urged upward by the pressure spring on the upper part of the pillar. A bale wrapper provided with a bobbin guide is provided so that it can be held, and a pipe equipped with the bobbin guide is pushed down below the pillar against the pressing spring and can be locked by a latch. -A film support device is described.

[0006]

[Problems to be solved by the device]

 However, with a plastic film pre-stretched by the pre-stretching device described in Japanese Patent Laid-Open No. 3-201109, the cylindrical winding form of the film supply reel in a wrapping machine for wrapping an object is almost vertical. The support for the film supply reel is supported by the lower reel holder and the upper reel holder via the arm attached to the support, and the upper reel holder is provided. The base of the arm is pivotally supported on the support by a horizontal shaft, and the lever extending from the arm of the upper reel holder engages with the support, whereby the upper reel holder is engaged. Since it was movably supported at the locking position of the cylindrical reel of the film reel and the releasing position thereof, the carriage supporting the upper reel holder for holding the film reel is supported. When the upper arm swings around the support shaft on the support and the upper holder rotates about the center of rotation of the carrier arm and the upper holder rises, the upper holder moves toward the support. , The amount of change in the product of the turning radius (R) of the upper reel holder on the carrier arm and the cosine of the swing angle (θ) of the carrier arm, that is, based on R (1-cos θ) And accordingly, the axial direction of the upper holder changes by the same angle as the swing angle (θ) of the carrier arm.

In order to secure the engagement and disengagement between the upper holder and the film reel and the ease of loading and unloading the film reel in the disengaged state, the swing angle θ of the carrier arm is set. Since the lower limit value has its own limit, the amount of change, that is, R (1-cos θ) cannot be ignored, and the displacement of the upper holder from the vertical direction due to the swing of the carrier arm is also ignored. Since it is not possible to engage and disengage the upper holder and the upper part of the film reel when the carrier arm swings, it is possible that the axis line of the film reel in the mounted state may be slightly different. Inclination may cause uneven contact of the pre-stretching device with the pre-stretching roll, thus even pulling the film out of the film reel unevenly, and also the circumference of the carrier arm. Part or off Irumuri - a problem such as causing the occurrence of uneven wear in the inner peripheral edge portion of the Le top.

It is to be noted that a substantially vertical film supply reel supporting stand supporting the cylindrical winding type of the plastic film supply reel disclosed in Japanese Patent Laid-Open No. 3-201109 is disclosed. In the case where the support is moved up and down with respect to the support portion of the stand by a crown gear mechanism or the like, the film reel can be easily loaded and unloaded by raising and lowering the film feed reel stand. No consideration is given to measures against the swinging of the carrier arm, and therefore the above-mentioned problems have not been solved yet.

In the roll film support device for the bale wrapper disclosed in Japanese Utility Model Laid-Open No. 64-43649, the bobbin of the roll film for the bale wrapper is attached to the pillar film of the bale wrapper. -Can be held by a bobbin receiver provided on a bracket provided on the lower part via a bobbin receiving shaft and a bobbin guide provided on the head of the pipe which is constantly urged upward by a pressing spring on the upper part of the pillar. In addition, the pipe having the bobbin guide is pushed down to the lower side of the pillar against the pressing spring and is locked by a latch, and the bobbin holder of the roll film is at the engaging position. Although it is attached to the support so that it can move between the release position and the release position, there is a dislike that its structure is complicated and its handling is troublesome.

The present invention has been made in view of the problems in the conventional example as described above. The supporting device 5 for the film reel 7 and the pre-stretching device for the film are attached to the vertical rod 8B erected around the machine frame 1A. 4 is provided, and the film is pulled out from the film reel by rotating the mounting table of the packaged object, and in the wrapping machine 1 for pre-stretching and wrapping the object to be packaged, the vertical direction around the machine frame 1A. A lower rack 603 of the rod 8B is provided, and a base cylinder 602 of a lower bracket 601 having a pinion 605 or a worm that meshes with the rack 603 is provided on the vertical rod 8B so as to be able to move up and down. 601 is provided with lower and middle guide rings 37, 38, and an upper guide ring 51A facing the lower and middle guide rings 37, 38 is provided at an end of the upper support plate 610 of the vertical rod 8B. By doing so, the supporting device of the fill reel 7 can be vertically moved up and down, and the supporting device 5 can be tilted outwardly as needed, so that the supporting device of the conventional example as described above is formed. An object of the present invention is to provide a film reel support device for a lapping machine that can solve the problems.

[0011]

[Means for solving the problem]

 In order to solve the above-mentioned problems, the present invention comprises a pre-stretching rod having vertical rods 8B erected on the side of the machine frame 1A, and first and second rolls 13 and 14 parallel to the vertical rods 8B. The apparatus 4 and the supporting device 5 for the film reel 7 including the lower guide ring 37 and the upper guide ring 51A are respectively provided, and the pre-stretching device 4 is moved from the film reel 7 supported by the supporting device 5. The film F drawn out through the first and second rolls 13 and 14 is engaged with the object to be packaged 2 by the end thereof, and the film 2 pre-stretched by the pre-stretching device 4 by the rotation of the object 2 to be packaged. In a wrapping machine for wrapping F with the object to be packaged, the upper shaft 612 of the upper guide ring 51A can be moved up and down to the upper bearing 611 at the end of the upper support plate 610 protruding laterally from the upper portion of the vertical rod 8B. Mounted vertically on the lower side of the vertical rod 8B. A rack 603 is provided, an appropriate operation means 604 is provided, and a pinion 605 that meshes with the rack 603 or a base cylinder 602 on which a worm or the like is mounted is provided so as to be able to move up and down in the vertical direction of the vertical rod 8B. Further, the lower guide ring 37 is provided on the lower bracket 601 projecting from the side portion of the base cylinder 602.

(Operation) Since the present invention has the above-mentioned structure, the film reel 7 is mounted on the supporting device 5 provided on the vertical rod 8B standing on the side of the machine frame 1A of the wrapping machine 1. At this time, a pinion 605 or a worm or the like provided on the base cylinder 602 of the lower bracket 601 is rotated by its operating means 604, and by the engagement of this pinion 605 and the rack 603 on the side of the vertical rod 8B, The base tube 602 of the lower bracket 601 is lowered along the vertical rod 8B without changing its direction to widen the space between the lower guide ring 37 and the upper guide ring 51A supported by the lower bracket 601, and then the lower guide ring The tube shaft 7B of the film reel 7 is inserted into the ring 37.

Further, the pinion 605 or the worm or the like is rotated in the opposite direction to the above by the operation means 604, and the vertical rod 8B is caused by the engagement of the pinion 605 or the worm or the like with the rack 603. The lower bracket 601 and the lower guide ring 37 on the side, and the film reel 7 attached to them are raised without changing their directions, and the upper guide of the pipe axis 7B of the film reel 7 is guided upward. Insert the ring 51A with its axis aligned and support it stably.

After the ends of the film F pulled out from the film reel 7 via the first and second rolls 13 and 14 of the pre-stretching device 4 are engaged with the object to be packaged 2, the same object to be packaged is used. By rotating the object 2, the object to be packaged 2 is wrapped with the film F pre-stretched by the pre-stretching device. Further, the film reel 7 is lowered together with the lower guide ring 37 and the lower bracket 601 by this reverse operation, and then the film reel 7 is taken out from the lower guide ring 37 of the supporting device 5.

[0015]

【Example】

 Next, an embodiment of a film reel supporting device in a lapping machine according to the present invention will be described with reference to FIGS. FIG. 1 is a perspective explanatory view of an essential part of an embodiment of a film reel supporting device in a wrapping machine according to the present invention, as seen from an obliquely lower side, and an upper guide ring is provided at an upper left part of FIG. 51 bearings are shown simultaneously in a schematic side view. FIG. 2 is a schematic plan view of a lapping machine 1 in which the film reel support device of this embodiment is implemented, and FIG.

In FIGS. 1 to 3, 1 is a wrapping machine for pre-drawing a plastic film F and wrapping it around a cylindrical roll bale 2 as an object to be packaged, and 1 A is a wrapping. In the machine frame of the machine 1, the machine frame 1A is supported on the ground by two caster wheels (not shown) which are juxtaposed in a direction perpendicular to the traveling direction of the lapping machine 1 (vertical in FIG. 2). Reference numeral 1B denotes an engaging portion projecting from a rear portion (right side in FIG. 2) of the machine casing 1A for engaging an elevating device of a tractor (not shown). In FIG. 2, the position of this mounting table 1D is indicated by a chain double-dashed line. 1E is a plurality of rolls (two in FIG. 2) arranged side by side on a mounting table 1D so as to rotate about an axis in the horizontal direction (parallel to the paper surface in FIG. 2 and extending in the left-right direction). A cylindrical roll bale 2 is placed on the rolls 1E and 1E of the mounting table 1D.

The mounting table 1D is rotationally driven in the direction of arrow A (clockwise in FIG. 1) around the center line Y of the vertical axis by the power from a power source of a tractor (not shown) or a power source prepared separately. The rolls 1E and 1E that rotate in conjunction with the rotation of the mounting table 1D drive the roll bale 2 as a packaged object placed on the rolls 1E and 1E to rotate in the direction of arrow B. ..

(Film Feeding Device) 3 is a feeding device for the film F. This film feeding device 3 is mainly composed of a pre-stretching device 4 for the film F and a supporting device 5 for the film reel 7 and is provided in the machine frame 1A. The support rod 8 is detachably supported by a horizontal rod 1C projecting from the rear left side (lower right side in FIG. 2), and the support column 8 includes a horizontal horizontal rod 8A and a vertical vertical rod 8B. Thus, it is formed into a substantially L shape in a side view.

(Film Pre-Stretching Device) As shown in FIGS. 2 and 3, the film F pre-stretching device 4 includes an upper support plate 9 and a lower support plate 10 fixed to the upper and lower portions of the rotary support shaft 11. In addition, the first roller 13 and the second roller 14 are rotatably supported, and the upper and lower parts of the rotation support shaft 11 are fixed to the upper and lower parts of the vertical rod 8B. The brackets 24 and 25 are rotatably supported. Reference numeral 12 is a fixing rod for connecting and fixing the ends of the upper support plate 9 and the lower support plate 10. In the first roller 13 and the second roller 14, shafts 13A and 14A projecting upward from them are supported by bearings 15 of the upper support plate 9, and their lower parts are inside the rollers 13 and 14. Through bearings 16, 16 fixed to the circumference, a shaft 18 protruding upward from a fastening plate 17 provided on the lower side of the lower support plate 10 is rotatably supported.

A large-diameter sprocket 19 is fixed to the shaft 13A of the first roller 13 and a small-diameter sprocket 20 is fixed to the shaft 14A of the second roller 14, and both spckets 19 and 20 are chain 21. , The first roller 13 is driven at a lower speed than the second roller 14. The rotation speed ratio between the second roller 14 and the first roller 13 is inversely proportional to the diameter ratio of the large diameter and small diameter sprockets 19 and 20. Reference numeral 22 is a cover of this transmission mechanism.

The upper and lower ends of the first roller 13 and the second roller 14 are formed in taper shapes 13B and 14B, and the length b of the cylindrical portions 13C and 14C at the center thereof is set. Is formed slightly shorter than the width L of the film F drawn from the film reel 7 by the reels 13 and 14, and the cylindrical portions 13C and 14C of the first roller 13 and the second roller 14 are formed. A plurality of grooves 23, 23 are provided on the circumferential surface of the same in the same direction (up and down in FIG. 2) as the axis of both rollers 13, 14.

(Film reel support device) 35 is a lower shaft erected on a lower bracket 601 described later via a lower bearing 36A, 37 is a lower guide ring provided on the lower bearing 36A, and 36B is a lower shaft 35. The middle bearings 38 provided on the upper part of the above are intermediate guide rings provided on the intermediate bearing 36B, and the lower bearing 36A and the intermediate bearing 36B, and the lower guide ring 37 and the intermediate guide ring 38 are provided concentrically. Reference numeral 50 denotes an upper bearing of the upper guide ring 51A, and the upper bearing 50 is provided at the lower end of the upper shaft 612. 51B is a flange of the upper guide ring 51A.

Reference numeral 601 denotes a lower bracket, and the lower bracket 601 is horizontally projected laterally from a base cylinder 602 mounted on the lower side of the vertical rod 8B so as to be vertically movable along the vertical rod 8B. It Reference numeral 603 is a rack provided vertically on the rear side portion (right side portion in FIG. 1) of the vertical rod 8B, and 604 is a handle as an operation means of a pinion 605 rotatably provided on the base cylinder 602. The base cylinder 602 moves up and down due to the engagement of the pinion 605 that rotates by the rotation of the rack 603, and the position is ensured by the engagement of the rack 603 and the pinion 605 when the handle 604 stops rotating. Reference numeral 606 is a stopper provided on the left side portion (FIG. 1) of the vertical rod 8B, and this stopper 606 limits the rising height of the base cylinder 602.

Reference numeral 610 is an upper support plate having a base fixed to the upper portion of the vertical rod 8B, and 611 is a through hole provided at an end of the upper support plate 610. The upper guide ring 51A is provided in the through hole 611 as an upper bearing. The upper shaft 612 provided at the lower end is inserted through 50 so as to be able to move up and down. An end plate 613 prevents the upper shaft 612 from falling. Reference numeral 614 denotes a compression spring provided between the upper bearing 50 provided at the lower portion of the upper shaft 612 and the upper support plate 61. The compression spring 614 always urges the upper shaft 6012 and the upper guide ring 51A downward. To be done.

(Operation of Embodiment) Rolls 2 as packaging objects are mounted on rolls 1E, 1E provided on a mounting table 1D on the machine frame 1A, and an appropriate drive of a tractor (not shown) or the like is performed. When the mounting table 1D is rotated around the vertical rotation axis Y by means, the rolls 1E and 1E are simultaneously rotated in association with this rotation, whereby the roll bale 2 is rotated in the arrow B direction. .. As a result, the roll belt 2 performs a combined rotation of the rotation around the vertical rotation axis Y and the rotation around the horizontal rotation center line X of the roll belt 2 and the film reel. The film F, which is supported by the roll support device 5 or is drawn from the film reel 7 through the pre-expansion device 4, is pre-expanded by the pre-expansion device 4 so that the roll bale 2 (the object to be packaged) is the same. It is similar to the existing lapping machine in that it is wrapped with the film F, but in this embodiment, the film reel 7 is supported by the supporting device 5 as follows.

First, when the handle 604 is rotated clockwise (FIG. 1), the base cylinder 602 and the lower bracket 601 are lowered by the engagement between the pinion 604 and the rack 603, and the lower shaft 35 and the lower shaft 35 are lowered. The guide ring 37 and the middle guide ring 38 descend without changing their directions to widen the distance between the lower guide ring 37 and the middle guide ring 38 and the upper guide ring 51A. Next, the film reel 7 is vertically disposed between the upper guide ring 51A and the middle guide ring 38, and the tube shaft 7B is inserted through the middle guide ring 38 to the lower guide ring 37.

Thereafter, when the handle 604 is rotated in the counterclockwise direction (FIG. 1), the base cylinder 602 and the lower bracket 601 move up due to the engagement between the pinion 605 and the rack 603, and the lower shaft 35 The lower guide ring 37 and the middle guide ring 38 ascend, and at the same time, the film reel 7 ascends without changing its direction, and the axial center of the upper guide ring 51A coincides with the axial center of the upper end of the tube shaft 7B. Is inserted to do. At this time, while the compression spring 614 is being compressed, the upper guide ring 51A and the upper shaft 6012 simultaneously rise, but as the base cylinder 602 rises, its upper side comes into contact with the lower side of the stopper 606, so that the upward movement. The upper limit of is limited.

At this time, the flange 51B of the upper guide ring 51A comes into contact with the end of the pipe shaft 7B of the film reel 7 by the compression spring 614, and the flange 37B of the lower guide ring 37 and the pipe shaft 7B of the film reel 7 are in contact with each other. Since the film is clamped, the pipe shaft 7B of the film reel 7 and the lower guide ring 37, the middle guide ring 38, and the upper guide ring 51A cooperate to reliably prevent the film reel 7 from fluctuating. ..

When pulling out the film reel 7 and the tube shaft 7B thereof from the film reel support device 5, the handle 604 is rotated in the clockwise direction (FIG. 1) opposite to the above, and the base cylinder 602, The lower guide ring 37 and the middle guide ring 38 should be lowered together with the lower bracket 601.

The pinion 605 that meshes with the rack 603 can be replaced with, for example, a worm, which is not shown, as long as the meshed state with the rack 603 can be secured at any position.

[0031]

[Effect of the device]

 (1) A base cylinder 602 of a lower bracket 601 having a lower guide ring 37 for supporting the film reel 7 is provided at the lower part of the vertical rod 8B so as to be able to move up and down, and a pinion 605 or a worm provided on the base cylinder 602. And the like are engaged with the rack 603 on the side of the vertical rod 8B and moved up and down with respect to the upper guide ring 51A at the end of the upper support plate 610 provided on the upper portion of the vertical rod 8B. Since the support device 5 of the above-mentioned apparatus rises and falls while standing upright, after inserting the film reel 7 into the lower guide ring 37 of the support device 5 of the film roll 7, the pinion 605 or the worm, etc. is operated by the operating means 604. The film reel 7 is accurately supported between the lower guide ring 37 and the upper guide ring 51A by a simple operation of rotating them in the opposite direction without causing a deviation of their center positions. , Film film -The roll 7 and the first roll 13 of the pre-stretching device 4 are in uniform contact over their entire length, and a support device for the film reel 7 is provided that allows the film F to be drawn out without bias. it can.

(2) If a stopper 606 for restricting the highest position of the lower bracket 601 and the base cylinder 602 is provided at an appropriate position around the rack 603 provided on the lower side of the vertical rod 8B, an operating means (handle) ) By the engagement of the rack 603 with the pinion 605 or the wall which rotates by 604, the upper limit of the rise of the base cylinder 602 of the lower bracket 601 is restricted by the engagement with the stopper 606, and the lower guide ring 37 The normal rising position is automatically determined.

(3) If a compression spring 614 is provided between the bearing 50 of the upper guide ring 51 A of the lower end of the upper shaft 612 and the upper support piece 610, the upper guide ring 51 A will move by the compression spring 614. Even if a slight gap is created between the upper side of the base cylinder 602 of the lower bracket 601 and the stopper 606, the film reel 7 is interposed between the upper and lower guide rings 37 and 51A. Therefore, the mounting operation of the film reel 7 to the regular mounting position can be further facilitated.

[Brief description of drawings]

FIG. 1 is a perspective explanatory view of an essential part of an embodiment of a film reel supporting device in a lapping machine according to the present invention as seen obliquely from below, and an upper guide ring of an upper guide ring is provided at an upper left part of FIG. The bearing is shown in a schematic side view at the same time.

FIG. 2 is a schematic plan view of a lapping machine in which the film reel support device of this embodiment is implemented.

FIG. 3 is a side view for explaining a main part of the pre-stretching device for the film F of this embodiment.

[Explanation of symbols]

 1 ... Lapping machine 1A ... Machine frame 1D ... Loading table 1E ... Roll 2 ... Roll bael 3 ... Film feeding device 4 ... Pre-stretching device 5 ... Film reel support device 7: film reel 8B: vertical rod 13: first roller 14: second roller 35: lower shaft 36: lower bearing 37: lower guide ring 38: middle guide ring 51A …… Upper guide ring 601 …… Lower bracket 602 …… Lower bracket base cylinder 603 …… Rack 604 …… Handle (operating means) 605 …… Pinion 606 …… Stopper 610 …… Upper support plate 611 …… Upper bearing 612 ...... Upper shaft 614 ...... Compression spring

Claims (2)

[Scope of utility model registration request] 1. A vertical rod 8B erected on the side of the machine frame 1A,
A pre-stretching device 4 including first and second rolls 13 and 14 parallel to the vertical rod 8B, a lower guide ring 37 and an upper guide ring 51A.
And a support device 5 for the film reel 7 each of which is provided with, and the film reel 7 supported by the support device 5 through the first and second rolls 13 and 14 of the pre-stretching device 4. In a wrapping machine that locks the drawn-out end of the film F to the object to be packaged 2 and wraps the film F pre-stretched by the pre-stretching device 4 by the rotation of the object to be packaged 2 to the object to be packaged, In the upper bearing 611 at the end of the upper support plate 610 protruding laterally from the upper portion of the vertical rod 8B,
The upper shaft 612 of the upper guide ring 51A is mounted so as to be able to move up and down, a vertical rack 603 is provided on the lower side of the vertical rod 8B, and an appropriate operation means 604 is provided.
A base cylinder 602 having a pinion 605 or a worm or the like meshing with it is provided so as to be movable up and down in the vertical direction of the vertical rod 8B, and is attached to a lower bracket 601 projecting from a side portion of the base cylinder 602. A support device for a film reel in a lapping machine, characterized in that a guide ring 37 is provided. 2. A stopper 606 for restricting the highest position of the lower bracket 601 and the base cylinder 602 is provided at an appropriate position around a rack 603 provided on the lower side of the vertical rod 8B. A film reel support device in the lapping machine described in 1.