JPH06340357A - Roll body installer - Google Patents

Abstract

PURPOSE:To make a roll body easily settable to each support by shifting a support block mounted with the roll body to a lower part between both the supports from a loading-unloading part, operating a lifting gear and lifting the support block upward. CONSTITUTION:A support block 35 supporting a roll body 3 is installed, free of lifting motion, beneath a pair of supports supporting both ends of the roll body 3 made up of winding a sheet work 5 free of rotation. In addition, a lifting gear, making the support block 35 go up and down, is installed there, and a loading-unloading part 52 loading or unloading the roll body 3 to or from the support block 35, is formed up. In succession, the support block 35 is attached to a movable carriage 37 being free of movements between a lower part between both the supports and the loading-unloading part 52. In brief, the roll body 3 is mounted on the support block 35 situated in the loading- unloading part 52, and then this support block 35 is shifted downward between both the supports from the loading-unloading part 52. Then the lifting gear is operated, thereby making the support block 35 so as to go up. With this constitution, the roll body 3 is accurately positioned in an interval between both these supports with no shift at all.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll body mounting device used for setting a roll body on a support in a bag making machine or the like.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, a roll body 70 is set on both supports 71 and 72 as follows. That is, both the support members 71 and 72 are the frames 73a and 73 of the bag making machine.
A left and right pair are provided in b. Each of these support tools 71 and 72 has a support shaft 75 that is rotatable about a horizontal axis 74.
And the roll body 70 attached to the inner ends of these support shafts 75.
It is formed by a support block 78 that can be freely inserted into and removed from both end openings 77 of the core 76. Of these, one support 71 is formed so as to be movable in the left-right direction (axial center 74 direction). The movement of the one support 71 is performed by the switching lever 79.

According to this, the roll body 70 is supported by both support members 71,
When setting to 72, first, as shown by the imaginary line in FIG.
Is moved to one side to open the gap between both support blocks 78.
After that, the operator lifts the roll body 70 and positions it between the support blocks 78, and as shown by the solid line, the switching lever
79 is switched to one side and one support tool 71 is moved to the other side. As a result, both support blocks 78 are aligned with the core of the roll body 70.
The roll body 70 is fitted into the openings 77 at both ends of the roll 76, and the roll body 70 is set and supported by both the support members 71 and 72. After that, the roll body 70 rotates around the horizontal axis 74 together with both the support members 71 and 72, and the film 80 is sent out from the roll body 70.

[0004]

However, in the above-mentioned conventional type, since the worker lifts the roll body 70 and sets it on both the support tools 71 and 72, the roll body 70 is particularly large and heavy. Both ends of the body 70 were deviated from both the support members 71 and 72, and it took a lot of time to set them.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a roll body mounting apparatus which can easily set a roll body on a support.

[0006]

In order to solve the above problems, a roll body mounting apparatus according to the present invention comprises a pair of support members for rotatably supporting both ends of a central axis of a roll body formed by winding a sheet material. A support base for supporting the roll body is provided below the support tools so as to be able to move up and down, and an elevating device for raising and lowering the support base is provided. An unloading section for unloading and unloading is formed, and the support base is made movable between the lower part between both the support tools and the unloading section.

[0007]

According to the above construction, when the roll body is set on the support, the support base is positioned at the loading / unloading portion, and the roll body is placed and supported on the support base. After that, the support base is moved from the loading / unloading section to the lower side between the support tools. Then, by operating the elevating device to raise the support base, the roll body is accurately positioned between the support tools without being displaced. In this state, the roll body is set on the support and supported, and then the support base is lowered and moved to the unloading section.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. As shown in FIGS. 2 and 3, reference numerals 1 and 2 denote support members for rotatably supporting the roll body 3, which are provided on a pair of left and right frames 4a and 4b of the bag making machine. The roll body 3 is a long film 5 (FIG.
(See) is formed by winding. This long film 2
Is a state in which the tubular tube body is folded in a gusset shape,
In addition, a welded portion (not shown) and a perforation portion (not shown) are formed, and they are formed in a roll shape around the cylindrical core 8 in a state where they are formed at a predetermined pitch in the length direction. It is rolled.

The support members 1 and 2 are respectively provided with a frame 4
Support shafts 10 and 11 inserted in a housing 9 attached to a and 4b so as to be movable left and right, and these support shafts 10 and 11
And support blocks 13 and 14 which are provided at the inner end of the core 8 and can be inserted into and removed from the openings 12 at both ends of the core 8. Of these, one support shaft 10 and the other support block 14 are provided so as to be rotatable around a horizontal axis 16.

The drive device 17 moves the one support 1 in the left-right direction (the direction of the axis 16). That is, the drive device 17 is composed of a reciprocating rod 18 reciprocating in the vertical direction by a motor (not shown), and an arm 19 swinging by the reciprocating rod 18. The arm 19 has a shape bent at a right angle, and the central portion of the arm 19 is attached to a bracket 20 provided on one frame 4a via a pin 21 so as to be swingable in the left-right direction. Is connected to the lower end of the reciprocating rod 18 via a link 22. The other end of the arm 19 is bifurcated to form a pair of cam rollers.
23 is mounted so that it can rotate freely. These cam rollers 23
Is fitted in a groove 25 formed on the outer peripheral surface of a ring 24 fitted on the outer end of one support shaft 10.

The movement of the other support 10 in the left-right direction (the direction of the axis 16) is urged in one direction by the spring cylinder device 28. That is, the cylinder body 29 is attached to the other frame 4b, and the cylinder body 29 has a built-in compression coil spring 31 for urging the piston rod 30 into and out of the body 29. The tip of the piston rod 30 and the outer end of the other support shaft 11 are connected by a connecting plate 32.

Further, a detection device (photoelectric switch or the like) for detecting the lateral displacement of the long film 5 sent out from the roll body 3 is provided above both the supports 1 and 2.

As shown in FIGS. 1 to 3, a support base 35 for supporting the roll body 3 is provided below the support members 1 and 2 so as to be lifted and lowered by being guided by a guide column 36. That is, the guide pillars 36 are provided on the lower surface of the support base 35 in a pair in the vertical direction in the vertical direction, and are inserted into the boss member 38 of the moving base 37 provided below the support base 35. Incidentally, 39 is a retaining member attached to the lower end of the guide column 36. In addition, a holding material 40 for fixing and holding the roll body 3 is provided on both sides of the upper surface of the support base 35.
Is provided. The holding member 40 is provided with a recess 41 into which the roll body 3 can be fitted.

Reference numeral 43 is an elevating device for elevating the support base 35. That is, as shown in FIG. 2, on the lower surface of the moving table 37, a rotary shaft 45 which is rotatable around a horizontal axis 44 is attached via a bracket 46, and both ends of the rotary shaft 45 are attached. Each is provided with a rotatable arm 47 for lifting the support base 35. As shown in FIGS. 2 and 4, a roller 48 that abuts against the lower surface of the support base 35 is attached to the ends of these arms 47 so as to be freely rotatable around the horizontal axis. In addition, at one end of the rotary shaft 45, the rotary shaft
An operation lever 50 for rotating the 45 is provided. As shown in FIG. 3, the operating lever 50 is of a center-folding type and can be folded from the base end.

Further, as shown in FIGS. 1 and 3, in front of and between the supports 1 and 2 and between the frames 4a and 4b, the roll body 3 is unloaded on the support base 35. Department
52 is formed, and the movable table 37 is formed so as to be movable back and forth between the lower part between the support tools 1 and 2 and the loading / unloading part 52. That is, at the center front part of the moving table 37, a wheel 54 that supports the moving table 37 and can travel on the floor 53 is mounted on the bracket.
Mounted via 55. Further, a pair of left and right guide rods 56 are horizontally provided in the front-rear direction at the rear of the moving table 37 via an L-shaped mounting plate 57. These guide rods 56
Are inserted into boss members 58 provided on both frames 4a and 4b, respectively, and the rear ends of both guide rods 56 are connected by a guide plate 59. Cushions 60 and 61 are attached to both ends of each guide rod 56, respectively. The boss member 58 is provided on the cross member 62 connected between the frames 4a and 4b. As a result, the moving base 37 is movably supported by the wheels 54 and the guide rods 56.

Further, a feeding device (not shown) for feeding the long film 5 from the roll body 3 supported by the support tools 1 and 2 to the frames 4a and 4b, and the long film 5 are provided.
A cutting device (not shown) or the like for cutting the machine from the perforated portion is provided.

The operation of the above structure will be described below.
When setting the roll body 3 on both the support tools 1 and 2, first, as shown by the phantom line in FIG. 2, a motor (not shown) is operated to move the reciprocating rod 18 downward to the lower limit position. , The arm 19 swings around the pin 21 in one direction, one support shaft 10 is pulled out to one side, and both support blocks 1
The space between 3 and 14 increases.

Next, as shown in phantom lines in FIGS. 1 and 3, the movable table 37 is pulled out to the front, and the support table 35 is unloaded.
Position at 52. Then, by placing the roll body 3 on the support base 35, the roll body 3 is held by the holding member 40 without rolling. After that, as shown by the solid lines in FIG. 1 and FIG.
37 is guided by both guide rods 56 and moves rearward, and after moving a predetermined stroke, the front cushion 60 abuts the boss member 58, whereby the moving table 37 is moved to both the support members 1 and 2.
Stop below. Then, as shown by the solid line in FIG. 4, by rotating the operation lever 50 downward,
Since 45 rotates, both arms 47 rotate upwards and support
Lift 35. As a result, as shown by the solid line in FIG. 1, the support base 35 is guided by both guide columns 36 and rises,
The roll body 3 is accurately positioned between the supports 1 and 2 without being displaced.

At this time, as shown in FIG. 2, the other support tool 2 is once pushed back to the other against the biasing force of the spring cylinder device 28, and then the support block 14 of the other support tool 2 of the roll body 3 is pushed. Fit into the other end opening 12 of the core 8.

Thereafter, as shown by the solid line in FIG. 2, the motor 19 (not shown) is operated to move the reciprocating rod 18 upward, whereby the arm 19 swings about the pin 21 to the other side.
One support shaft 10 is pushed to the other side, and one support block 13 is fitted into one end opening 12 of the core 8. Therefore, the roll body 3 is sandwiched and supported by the supporters 1 and 2.

After that, as shown by the phantom line in FIG. 4, by rotating the operating lever 50 upward, both arms 47 rotate downward, and the support base 35 is guided by both guide columns 36 and self-weighted. Is lowered by and is received on the moving table 37. Incidentally, FIG.
As shown by the phantom line, when the operation lever 50 is not operated, the operation lever 50 is folded so as not to disturb the work.

Then, as shown by the phantom lines in FIGS. 1 and 3, the movable table 37 is pulled out from the lower side of both the support members 1 and 2 to the front side. At this time, the movable base 37 is guided by both guide rods 56 to move forward, and after moving for a predetermined stroke, the rear cushion 61 comes into contact with the boss member 58, whereby the movable base 37 is moved.
37 stops at the unloading section 52.

In this way, the long film 5 is sent out from the roll body 3 set on both the support tools 1 and 2, and is cut from the perforated portion by the cutting device and used as individual bags.

In the above embodiment, the unloading portion 52 is formed in front of the supporting tools 1 and 2 and between the frames 4a and 4b, and the support base 35 is pulled out from the unloading portion 52 to perform unloading. Since a sufficient working space can be secured, loading and unloading work can be easily performed.

[0025]

As described above, according to the present invention, the support base on which the rolls are placed is moved from the unloading section to a position between the two support members, and the lifting device is operated to raise the support base. As a result, the roll body is accurately positioned without being displaced between the two support tools. Therefore, the roll body can be easily set on the support. Further, since the support base is moved to the unloading section and the unloading operation of the roll body is performed in the unloading section, it is possible to secure a sufficient working space during unloading.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a roll body mounting device according to an embodiment of the present invention.

FIG. 2 is a front view of the roll body mounting device.

FIG. 3 is a plan view of the roll body mounting device.

FIG. 4 is a side view showing the operation of the lifting device.

FIG. 5 is a vertical cross-sectional front view of a roll body set on a support in a conventional example.

[Explanation of symbols]

 1, 2 Supports 3 Rolls 5 Long film (sheets) 16 Horizontal axis (center axis) 35 Support stand 43 Lifting device 52 Loading / unloading section

Claims (1)

[Claims] 1. A pair of support tools for rotatably supporting both ends of a central axis of a roll body formed by winding a sheet material, and a support base for supporting the roll body is vertically movable between the support tools. An elevating device for elevating and lowering the support table is provided, and an unloading section for unloading the roll body is formed on the support table in front of both support tools. A roll body mounting device characterized by being movable between a lower part and an unloading part.