JPH061306A - Pallet stretch packing machine - Google Patents

Abstract

PURPOSE:To improve a pallet stretch packing machine wherein a slope and a hand lift can be used, the packing is reliably performed, the early load shift is not generated, and the moving is easy. CONSTITUTION:A pallet stretch packing mechanism comprises a base 11 wherein a shaft 12 is stood up on a web 11A of a C-shaped steel 11, and caster supporting stands 13 protrudes from the both flanges 11B of the C-shaped steel 11, a turn table rotation driving mechanism 2 fixed on one end of the base 1, and a film stand 3 attached to a mast 31 so as to be moved freely up and down, and wherein a film 32 is attached. Also, it comprises a drive roller 4 arranged on the web 11A of the C-shaped steel 11, casters 5 fixed on the end of the C-shaped steel 11 and the caster supporting stands 13, and a turn table 6 attached to the shaft 12, and rotatably supported freely by the drive roller 4 and the casters 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet stretch wrapping machine for tightly winding a stretch film around a palletized load in order to prevent the load from collapsing during transportation, loading and storage.

[0002]

2. Description of the Related Art As a pallet stretch packaging machine, a turntable rotation drive mechanism composed of a motor, a speed reducer, a coupling and a shaft is installed in a space below a rotating part (turntable), and the shaft is mounted on the shaft. In some cases, a drive roller that contacts the turntable and two casters that support the turntable are arranged. The turntable rotation drive mechanism and the casters are fixed to the base, and the rotating unit (turntable) has a bearing unit (square flange unit) mounted on the bottom surface thereof. It is rotatably supported by an upright shaft.

[0003]

In this prior art, since the turntable rotation drive mechanism is arranged in the space under the turntable, the turntable is located at a position considerably higher than the floor surface. It is a stilt type. Therefore, the slope cannot be used,
For this reason, it is not possible to use a hand lift / power lift for loading and unloading. Further, the turntable is supported by one drive roller and two casters, but the distance between them is as wide as 120 degrees, so when the load is placed on the outer peripheral surface on the extension line of one drive roller,
One-sided load (one-sided load) occurs. Even if the load is placed correctly, if there is a load imbalance, one load (one load) similarly occurs. When this one-sided load (one-sided load) is generated, the turntable bounces up to cause idle rotation, and its rotation becomes irregular, so that the packaging is not performed properly. Further, since the load is shared by the one driving roller and the two casters, the driving roller and the casters become large. For this reason, the contact area of the turntable with the drive roller and the caster is large, and the impact at the time of starting the motor is directly transmitted to the turntable, causing the load to collapse depending on the load.

The present invention has been made for the purpose of solving the problems of the prior art.

[0005]

Means for solving the above problems will be described below with reference to FIG. 1 corresponding to the embodiment. According to the present invention, a shaft 12 is erected on a web 11A of a C-shaped steel 11 with an opening facing upward, and both flanges 11B to C of the C-shaped steel 11 are centered around the shaft 12.
A base 1 on which a caster support 13 for supporting casters is provided on the other end side of the shaped steel 11, a turntable rotation drive mechanism 2 fixed to one end of the base 1, and a mast standing on one end of the base 1. A film base 3 mounted vertically on a film 31 and having a film 32 mounted thereon.
A drive roller 4 mounted on the turntable rotation drive mechanism 2 and arranged on the web 11A of the C-shaped steel 11, a caster 5 fixed to the other end of the C-shaped steel 11 and the caster support 13, and a bottom surface 6A. The turntable 6 is mounted on the shaft 12 via the bearing unit 61 fixed to the turntable 6 and is rotatably supported by the drive roller 4 and the casters 5.

[0006]

In the structure thus constructed, the turntable 6 is of a low floor type, which is located not higher than the floor surface, the distance between the casters 5 is narrow, and the drive roller 4 and the casters 5 are small. is there.

[0007]

1 is a diagram showing an embodiment of the present invention. In FIG. 1, 1 is a base, 2 is a turntable rotation drive mechanism, 3 is a film base, 4 is a drive roller, 5 is a caster, and 6 is a turntable.

The base 1 is composed of a long C-shaped steel 11 and two caster support bases 13. C type steel 11
The size of 200.times.80 is used.
This size is selected in consideration of keeping the turntable 6 as low as possible from the floor surface and the size of the slope. As the caster support 13, a C type steel having a size of 200 × 80 is used. This size is selected in consideration of the size of the C-shaped steel 11 and the thickness of the fork insertion portion 15, which will be described later, that is, the fork. And in each case, the opening is on the top.

The web 11A of the C-shaped steel 11 has φ30 ×
The shaft 12 of L70 is erected. Caster 5
The caster support 13 for supporting the C-shaped steel 11 from the both flanges 11B of the C-shaped steel 11 around the shaft 12 is used.
Is projected on the other end side. C for the caster support base 13
Since the turntable rotation drive mechanism 2 is arranged at one end side of the C-shaped steel 11 and the worker is present, the turntable 6 is loaded from the other end side of the C-shaped steel 11 so as to project from the other end side of the C-shaped steel 11. It is done. The center of the C-shaped steel 11 and the center of the caster support 13 have an angle of 60 or 72 degrees. A reinforcing plate 14 is attached to the other ends of the C-shaped steel 11 and the caster support 13. The reinforcing plate 14 of the caster support 13 has a hole 14A for attaching a slope.

The caster support 13 is formed in parallel with the C-shaped steel 11 by a notch 13B notched in both flanges 13A of the caster support 13 and a plate 13C installed between both flanges 13A. A fork insertion portion 15 is provided. When moving this packaging machine,
This is done by inserting the fork into the fork insertion portion 15. By providing the fork insertion portion 15, the packaging machine can be easily moved.

The turntable rotation drive mechanism 2 is fixed to one end of the base 1. That is, the turntable rotation drive mechanism 2 includes a motor 21, a speed reducer (not shown), a sprocket (not shown), a chain (not shown), a sprocket (not shown), a shaft 22, and a plurality of bearing units 23. Composed of a motor 2
The speed reducer connected to 1 is fixed to a pedestal 16 provided at one end of the C-shaped steel 11, and the shaft 22 is attached to a plurality of bearing units (pillow-shaped units) 23 fixed to the web 11A of the C-shaped steel 11. A chain is hung between the sprocket fixed to the speed reducer and the sprocket fixed to one end of the shaft. Box 24 in which the control device of the motor 21 is arranged and wired inside
Is covered with a speed reducer and is fixed to the pedestal 16. Further, the lid 25 is put on a part of the C-shaped steel 11. In this way, only the motor 21 is safe to be exposed.

The film base 3 is attached to one end of the base 1, that is, the flange 11B at one end of the C-shaped steel 11 by a mounting plate 31.
A and a bolt 31B are tiltably fixed and vertically mounted on a vertically provided mast 31. A square pipe 50 × 50 is used as the mast 31. Mast 31
Removes three bolts 31B and removes one bolt 31
By loosening B, you can tilt freely. Mast 31
By tiltingly fixing it, it can be laid sideways on the mast 31 during movement, and movement is easy.

A notch (not shown) is provided in the upper portion of the mast 31, and a metallic pulley (not shown) is arranged inside the notch. A wire (not shown) whose one end is fixed to the film base 3 enters the inside from the notch, and a weight (not shown) is fixed to the other end. With this weight, the weight of the film base 3 is not felt, and the vertical operation can be performed lightly. A film 32 is attached to the film base 3, and a stopper (not shown) is attached so that the film 32 can be fixed at an arbitrary position.

The drive roller 4 is mounted on the other end of the turntable rotation drive mechanism 2, that is, the shaft 22, and is arranged on the web 11A of the C-shaped steel 11. As the drive roller 4, a φ88 × W65 urethane wheel (custom-made product) is used. This allows the turntable 6 to be located no higher than the floor. A hole 17 is formed in the web 11A of the C-shaped steel 11 directly below the drive roller 4 so that the drive roller 4 does not come into contact with the web 11A (see FIG. 5). At the center of the drive roller 4, that is, the center of the shaft 22, the outer peripheral surface of the drive roller 4 is C-shaped steel 1.
It is set so as to project from the upper end of the first flange 11B and not to project from the bottom surface of the web 11A of the C-shaped steel 11. For this purpose, a plurality of bearing units 2
The height of 3 is adjusted by a liner (not shown).

When packaging a product that is likely to collapse, it is sufficient to apply grease to the drive roller 4. In this case, the contact surface between the drive roller 4 and the turntable 6 slips due to the presence of the grease, and the impact at the time of starting the motor is not transmitted to the turntable. Therefore,
Does not cause load collapse. This is an advantage of the lower surface roller type in which the turntable 6 and the drive roller 4 are in contact with each other.

The caster 5 is fixed to the other end of the C-shaped steel 11 and the caster support 13. As casters, φ50 × W38 urethane (with flexible metal fittings) is used. This size is selected from the viewpoint of load capacity and utilization of ready-made products. The height of the caster 5 is adjusted by a liner (not shown) so that the caster 5 has the same height as the drive roller 4.

Assuming a pentagon (a hexagon may be used) in which the caster 5 arranged at the other end of the C-shaped steel 11 is one corner, the casters 5 are arranged in the left and right corners on the caster 5 side via the caster support base 13. Then, the two driving rollers 4 are loaded on one driving roller 4, and the turntable 6
Is supported by one drive roller 4 and three casters 5, the distance between them becomes narrower, and the casters 5 are present on the outer peripheral surface on the extension line of the drive roller 4 where the one-sided load (one-sided load) is most likely to occur. Therefore, a single load (one load) does not occur. Further, since the load is shared by the one driving roller 4 and the three casters 5, the driving roller 4 and the casters 5 can be small in size. Therefore, the contact area of the turntable 6 with the drive roller 4 and the casters 5 is small, and the impact at the time of starting the motor is hard to be transmitted to the turntable 6.

The turntable 6 is mounted on the shaft 12 via a bearing unit 61 fixed to its bottom surface 6A, and is supported by the drive roller 4 and casters 5 (see FIGS. 2 and 4).

The foot switch 7 is placed on the floor and one end thereof is guided to the box 24 (see FIG. 3). When the foot switch 7 is used, the rotation operation is left to the foot, and the film can be raised and lowered with both hands, the stopper operation, the tension adjustment, and the packing appearance can be adjusted.

As described above, the turntable rotation drive mechanism 2 is arranged not under the turntable 6 but under the turntable 6
By arranging them in the same row, a so-called low floor type is obtained. Therefore, the slope can be used, and the hand lift and power lift can be used for loading and unloading. Further, since the turntable 6 is supported by the one drive roller 4 and the three casters 5, no one-sided load (one-sided load) is generated, and the drive roller 4 and the casters 5 can be small in size. Therefore, the packaging is done correctly,
In addition, the impact at the time of starting the motor is not transmitted to the turntable, and the load does not collapse.

[0021]

As described above, the present invention is
A shaft is erected on a web of C-shaped steel with an opening facing upward, and a caster support base for supporting casters is projected from both flanges of the C-shaped steel around the shaft to the other end side of the C-shaped steel. A base, a turntable rotation drive mechanism fixed to one end of the base, a vertically mounted film stand mounted on a mast standing at one end of the base, and a turntable including the film. Through a drive roller mounted on the rotary drive mechanism and arranged on the web of the C-section steel, a caster fixed to the other end of the C-section steel and the caster support, and a bearing unit fixed to the bottom surface. A turntable mounted on the shaft and rotatably supported by the drive roller and the casters. It is. Therefore, it is a low floor type in which the turntable is located not higher than the floor surface, a single load is not generated, and the drive roller and the caster are small. Therefore, according to the present invention, it is possible to use a slope, a hand lift, and the like, and it is possible to obtain an effect that packaging is performed correctly and a load collapse does not occur.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a front view showing an embodiment of the present invention.

FIG. 3 is a perspective view showing an embodiment of the present invention.

FIG. 4 is a bottom view of a turntable that constitutes the present invention.

5 is a cross-sectional view taken along the line AA in FIG.

[Explanation of symbols]

 1 base 2 turntable rotation drive mechanism 3 film stand 4 drive roller 5 caster 6 turntable

Claims (2)

[Claims] 1. A caster support in which a shaft is erected on a web of C-shaped steel with an opening facing upward, and a caster is supported from both flanges of the C-shaped steel around the shaft to the other end side of the C-shaped steel. A base with a stand protruding,
A turntable rotation drive mechanism fixed to one end of the base, a film stand mounted vertically on a mast standing at one end of the base, and having a film attached thereto, and the turntable rotation drive mechanism. Mounted on the shaft through a driving roller arranged on the web of the C-shaped steel, a caster fixed on the other end of the C-shaped steel and the caster support, and a bearing unit fixed on the bottom surface. And a pallet stretch packaging machine including a turntable rotatably supported by the drive roller and the casters. 2. The turntable rotation drive mechanism includes a motor, a speed reducer, a sprocket, a chain, a sprocket,
The pallet stretch wrapping machine according to claim 1, comprising a shaft and a plurality of bearing units.