JP2917747B2 - Roll mounting device - Google Patents

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 apparatus used for setting a roll body on a support in a bag making machine, for example.

[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, the two supports 71 and 72 are connected to the frames 73a and 73 of the bag making machine.
A pair of right and left is provided in b. Each of these support members 71 and 72 has a support shaft 75 rotatable about a left-right axis 74.
And a roll body 70 attached to the inner ends of these support shafts 75.
And a support block 78 that can be fitted into and removed from both end openings 77 of the core 76. One of the supports 71 is formed so as to be movable in the left-right direction (the direction of the axis 74). The movement of the one support 71 is performed by a switching lever 79.

According to this, a roll body 70 is connected to both support members 71,
When setting to 72, first, as shown by the phantom line in FIG.
Is moved to one side to open the space between the two support blocks 78.
Thereafter, the operator lifts the roll body 70 and positions it between the two support blocks 78, and as shown by the solid line, the switching lever
79 is switched to one, and one support 71 is moved to the other side. As a result, both support blocks 78 are connected to the core of the roll body 70.
The roll body 70 is fitted into the opening 77 at both ends of the roller 76, and the roll body 70 is set and supported by both the support members 71 and 72. Thereafter, the roll body 70 rotates about the left-right axis 74 together with the two support members 71 and 72, and the film 80 is fed from the roll body 70.

[0004]

However, in the above-mentioned conventional type, the worker lifts the roll body 70 and sets it on both the supporting members 71 and 72. Both ends of the body 70 were displaced from both supports 71 and 72, and the setting work was troublesome.

An object of the present invention is to solve the above-mentioned problem, and it is an object of the present invention to provide a roll body mounting apparatus that can easily set a roll body on a support.

[0006]

In order to solve the above-mentioned problem, a roll body mounting apparatus according to the present invention comprises a pair of supports for rotatably supporting both ends of a center axis of a roll body formed by winding a sheet. A support table for supporting the roll body is provided to be able to ascend and descend below these support members, and an elevating device for elevating the support table is provided. Forming a loading / unloading section for carrying out loading / unloading, the supporting table is movable between a lower portion between both supports and between the loading / unloading section, and the lifting / lowering device is moved up and down about a rotation axis.
An arm that raises and lowers the support base by rotating downward
And an operation lever for rotating the rotation shaft.
The operation of the operation lever
This can be performed from the loading / unloading unit side .

[0007]

According to the above arrangement, when the roll is set on the support, the support is positioned at the loading / unloading section, and the roll is placed and supported on the support. Thereafter, the support table is pushed downward from the unloading section between the two support tools. And
By operating the lifting device to raise the support base,
The roll body is accurately positioned without shifting between the two supports. Roll in this state is supported by being set to the bracket, then pull out the support table to the unloading unit with lowering. The operation of the lifting device is performed by operating the operation lever.
By rotating the rotating shaft.
The arm rotates up and down around the rotation axis, and the support
It is raised and lowered. At this time, the operation of the operation lever and the support
Since loading and unloading can be done from the loading / unloading department side, it is very work
Is easy to do.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One 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 supports for rotatably supporting the roll body 3, and 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. 1) which is an example of a sheet material.
Reference). This long film 2
In the state where the tubular tube body is folded into a gusset shape,
In addition, a welded portion (not shown) and a perforated portion (not shown) are formed, and these are formed at predetermined pitches in the length direction, and are previously rolled around the cylindrical core 8. It is wound.

The two supports 1 and 2 are respectively
a, 4b, supporting shafts 10 and 11 movably inserted in the housing 9 to be movable in the left-right direction.
And support blocks 13 and 14 which are provided at the inner end of the core 8 and which 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 rotatably about a left-right axis 16.

The driving device 17 moves the one support 1 in the left-right direction (in the direction of the axis 16). That is, the driving device 17 includes a reciprocating rod 18 that reciprocates in a vertical direction by a motor (not shown), and an arm 19 that swings by the reciprocating rod 18. The arm 19 has a shape bent at a right angle, and the center of the arm 19 is attached to a bracket 20 provided on one of the frames 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 branches into two branches, and a pair of cam rollers
23 is freely mounted. These cam rollers 23
Is fitted into a groove 25 formed on the outer peripheral surface of a ring 24 externally fitted to 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 to one side by a spring cylinder device 28. That is, the cylinder body 29 is mounted on 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 distal end of the piston rod 30 and the outer end of the other support shaft 11 are connected by a connecting plate 32.

A detecting device (such as a photoelectric switch) for detecting a lateral displacement of the long film 5 fed from the roll body 3 is provided above the two supports 1 and 2.

As shown in FIGS. 1 to 3, a support 35 for supporting the roll body 3 is provided below the space between the two supports 1 and 2 by a guide column 36 so as to be movable up and down. That is, the guide columns 36 are vertically provided as a pair of left and right sides on the lower surface of the support base 35, and are inserted into the boss members 38 of the movable base 37 provided below the support base 35. Reference numeral 39 denotes a stopper attached to the lower end of the guide column 36. On both sides of the upper surface of the support 35, holding members 40 for fixing and holding the roll body 3 are provided.
Is provided. These holding members 40 are formed with concave portions 41 into which the roll body 3 can fit.

Reference numeral 43 denotes a lifting device for raising and lowering the support table 35. That is, as shown in FIG. 2, on the lower surface of the moving table 37, a rotating shaft 45 that is rotatable around a left-right axis 44 is attached via a bracket 46. Are provided with rotatable arms 47 for lifting the support base 35, respectively. As shown in FIGS. 2 and 4, a roller 48 that comes into contact with the lower surface of the support base 35 is attached to the tip of each of the arms 47 so as to freely rotate about the left-right axis. In addition, one end of the rotation shaft 45 has the rotation shaft
An operation lever 50 for rotating the 45 is provided. As shown in FIG. 3, the operation lever 50 is a center-fold type, and can be folded from the base end.

In addition, as shown in FIGS. 1 and 3, in front of the space between the supports 1 and 2 and between the frames 4a and 4b, the loading / unloading of the roll body 3 to / from the support base 35 is performed. Department
52 is formed, and the moving table 37 is formed so as to be movable back and forth between the lower part between the two support members 1 and 2 and the unloading part 52. That is, a wheel 54 that supports the moving table 37 and can run on the floor 53 is mounted on the front of the center of the moving table 37 by a bracket.
Installed via 55. A pair of left and right guide bars 56 are horizontally provided in the front-rear direction via an L-shaped mounting plate 57 at the rear part of the movable base 37. 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. Note that cushions 60 and 61 are attached to both ends of each guide rod 56, respectively. The boss member 58 is provided on a cross member 62 connected between the frames 4a and 4b. Thus, the movable table 37 is movably supported by the wheels 54 and the guide rods 56.

A feeding device (not shown) for feeding the long film 5 from the roll body 3 supported by the supports 1 and 2 is provided on the frames 4a and 4b.
A cutting device (not shown) that cuts the sheet from the perforation is provided.

The operation of the above configuration will be described below.
When the roll body 3 is set on both the support members 1 and 2, first, as shown by a virtual line in FIG. 2, a motor (not shown) is operated to lower the reciprocating rod 18 to the lower limit position. Since the arm 19 swings to one side around the pin 21, one of the support shafts 10 is pulled out to one side and the two support blocks 1
The interval between 3 and 14 increases.

Next, as shown by 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. Thereafter, as shown by the solid line in FIGS.
37 is guided by the two guide rods 56 and moves rearward, and after moving by a predetermined stroke, the front cushion 60 abuts on the boss member 58.
Stop down between. Then, as shown by the solid line in FIG.
As 45 rotates, both arms 47 rotate upward and the support
Lift 35. Thereby, as shown by the solid line in FIG. 1, the support base 35 is guided by the two guide columns 36 and rises,
The roll body 3 is accurately positioned without shifting between the two supports 1 and 2.

At this time, as shown in FIG. 2, after the other support 2 is once pushed back to the other against the urging force of the spring cylinder device 28, the support block 14 of the other support 2 is The other end of the core 8 is fitted into the opening 12.

Thereafter, as shown by the solid line in FIG. 2, the motor 19 (not shown) is operated to move the reciprocating rod 18 upward, so that 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 two support members 1 and 2.

Thereafter, as shown by the imaginary line in FIG. 4, when the operation lever 50 is rotated upward, both arms 47 are rotated downward, and the support base 35 is guided by the two guide columns 36 so that its own weight is reduced. , And is received on the movable base 37. FIG.
When the operation lever 50 is not operated, the operation lever 50 is folded so as not to disturb the work, as indicated by the phantom line.

Then, as shown by the imaginary line in FIGS. 1 and 3, the movable table 37 is pulled out from below both the supports 1 and 2 toward the front. At this time, the movable table 37 moves forward by being guided by the two guide rods 56, and after moving by a predetermined stroke, the rear cushion 61 abuts on the boss member 58.
37 stops at the loading / unloading section 52.

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

In the above embodiment, a loading / unloading portion 52 is formed in front of the support 1 and 2 and between the frames 4a and 4b, and by pulling out the support 35 to the loading / unloading portion 52, the loading and unloading is performed. Since a sufficient work space can be secured, the unloading work can be easily performed. Sa
Furthermore, the operation of the operation lever 50 and the insertion and removal of the movable base 37 are
Very easy to work because it can be done from the wholesaler 52 side
No.

[0025]

As described above, according to the present invention, the support table on which the roll body is placed is moved downward from the unloading section to between the two supports.
The roll body is accurately positioned without being displaced between the two support members by pushing in and operating the elevating device to raise the support base. Therefore, the roll body can be easily set on the support. In addition, the support base must be
Since the unloading and unloading of the roll body is performed by the drawer / unloading unit, a sufficient work space for unloading can be secured. In addition, the operation of the lifting device is performed by operating the operation lever.
By rotating the rotating shaft, thereby
The arm rotates up and down around the rotation axis, and the support base moves up and down
Is done. At this time, operate the operation lever and extend the support
Since loading can be done from the loading / unloading department, very
Easy.

[Brief description of the 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 sectional front view of a roll body set on a support in a conventional example.

[Explanation of symbols]

 1, 2 support 3 roll body 5 long film (sheet material) 16 horizontal axis (center axis) 35 support base 43 lifting device 52 loading / unloading unit

Claims (1)

(57) [Claims] 1. A pair of supports for rotatably supporting both ends of a central axis of a roll formed by winding a sheet material are provided, and a support table for supporting the roll is vertically movable between these supports. Provided, a lifting device for raising and lowering the support table is provided, and a loading / unloading unit for loading / unloading the roll body with respect to the support table is formed in front of the two support tools. It is freely moved between the lower and the loading and unloading unit, the temperature
The lowering device is rotated up and down around the rotation axis.
Rotate the rotating shaft with the arm that raises and lowers the support
And an operating lever to move
And the operation of the operation lever are performed from the loading / unloading section.
Roll mounting apparatus characterized by obtaining.