JPH0449050Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention is based on a synthetic resin film that wraps a large article or a group of large articles made by stacking and bundling many small articles. Relating to a device for removing.

(Prior Art) Conventionally, for example, when transporting empty cans, a large number of empty cans b are arranged on a pallet a, and the empty cans b are stacked in multiple stages via a partition plate c, as shown in Figure 6. The cans are laminated to form a vertical rectangular parallelepiped and are tied together with a cable tie d, and the whole can is shrink-wrapped with a synthetic resin film e to prevent dust from adhering to the empty can b or from being scratched. things are being done.

This is convenient as simple packaging, and has been widely used in recent years, but it is necessary to remove the shrink film after transportation, and since the entire volume is large, this removal process is time-consuming. There was an inconvenience that the work efficiency was poor due to the high pressure.

(Problems to be Solved) It is an object of the present invention to provide an apparatus that can eliminate such inconveniences and efficiently remove large articles even if the entire article is wrapped in a film.

(Means for Solving the Problems) In order to achieve this object, the present invention provides an apparatus for removing a film from an article entirely wrapped with a film, which includes a turntable on which the article is placed and rotates. , a film suction device provided above the turntable; a lifting device that raises and lowers the suction device toward the article placed on the turntable; and a lifting device that moves up and down near the bottom of the article placed on the turntable. a first film cutter freely disposed; a second film cutter movable in the height direction of the article placed on the turntable; and a second film cutter disposed so as to move forward and backward on the side of the article; The present invention is characterized by comprising a film removing device movably provided across the lifting position of the suction device, and a film discharging device provided at a position where the film removing device is moved across the lifting position of the adsorption device.

The turntable is a device on which a film-wrapped article is placed and rotated, and may be one that rotates 360 degrees in one direction or one that rotates only a predetermined angle.

The film suction device is equipped with a suction cup connected to a suction device, and the suction cup is provided so as to be able to suction the entire upper surface of the film-wrapped article as will be described later.

The lifting device of the film suction device supports the suction device above the article placed on the turntable and lowers the suction device so that it comes into contact with the top surface of the article, so that the film is suctioned by the suction device. After that, the adsorption device is raised.

At least one first film cutter is provided near the bottom of the article placed on the turntable, and a plurality of first film cutters may be provided depending on the rotation angle of the turntable. The first film cutter is provided so as to be able to move forward and backward so as to come into contact with the film wrapped in the lower part of the article. When the article on the turntable is rotated by the turntable, the first film cutter to cut the film in the circumferential direction of the article. At this time, the rotation angle of the turntable and the first
Set the location and number of film cutters. By providing a plurality of first film cutters, the cutting time can be shortened.

The second film cutter is configured to move down along the height direction of the article placed on the turntable, preferably over the entire height, and at least to the film cutting position of the first film cutter. It is movably provided, and is provided on the side surface of the article so as to be freely retractable so as to cut the film on the side surface of the article in the height direction of the article. The second film cutter is for cutting the film at several locations on the side of the film-wrapped article, and at least one is sufficient. That is, by rotating the article on a turntable and changing the position at which the second film cutter cuts the film, it is possible to cut the film at several locations. Providing a plurality of second film cutters not only shortens the cutting time, but also facilitates cutting when the article has a prismatic shape.

The first and second film cutters may use fixed cutting blades or may use rotating cutting blades.

As will be described later, the film removing device cuts the film wrapping the article on the turntable with first and second film cutters, then adsorbs the cut film with the suction device and lifts the film with the lifting device. When the film is lifted upward and removed from the article, it moves across the lifting position of the adsorption device, removes the suspended film to the side, and further separates the film from the article. It is something.

The film discharging device discharges the cut film that has been moved laterally by the film removing device out of the device, and is provided at a position where the film removing device has moved across the vertical position of the suction device. be. It is preferable that the film ejecting device is configured to forcibly eject the film removed laterally by the film removing device while holding the film.

The present invention is applicable to an article entirely packaged with a film, and is particularly suitable for removing the film from a shrink-wrapped article.

(Operation) Since the present invention employs such a configuration, it operates as follows. For the entire film-wrapped article placed on the turntable,
The film cutter cuts the film located near the bottom of the article over the entire circumference by rotating the turntable. Further, the second film cutter cuts the film on the side of the article in the height direction from above to the lower position cut by the first film cutter, and the article is further rotated using a turntable to cut at least two or more places. disconnect.

Next, the suction device is lowered by the lifting device to suction the film on the upper surface of the article, and is further raised to separate the cut film from the article. Thereafter, the film thus separated and suspended is removed laterally by a film removal device, and the film is further removed from the article. Then, the film that has been swept to the side is discharged from the apparatus by a film discharge device.

(Example) A more detailed explanation will be given below with reference to FIGS. 1 to 5 showing an example of implementation of the present invention.

1 is a turntable, 2 is a film adsorption device, 3 is an elevating device for the adsorption device, 4 is a first film cutter, 5 is a second film cutter, 6 is a film removal device, and 7 is a film discharge device. .

The turntable 1 is rotated 180 degrees around a rotation shaft 8 by a drive device (not shown). 9 indicates a rail for moving articles.

The film suction device 2 has a plurality of suction cups 10 connected to a vacuum pump (not shown) attached to a support plate 1.
1, is supported by a lifting device 3 at a position directly above the turntable 1, and is lifted and lowered with respect to the upper surface of the article on the turntable 1 by the lifting device 3.

The lifting device 3 includes an air cylinder device 12 and is guided by a guide rod 13 to lift and lower the suction device 2.

The first film cutter 4 is a turntable 1
A rotary blade 15 is provided near the bottom of the opposite side of the article placed on the table and rotated by a motor 14. The air cylinder 18 presses the articles placed on the turntable 1 near the upper edge of the pallet a, and advances and retreats while being pressed as the articles rotate.

The second film cutter 5 was provided on the same side as the first film cutter 4, and at four corners of the opposite side of the rectangular parallelepiped article placed on the turntable 1. Each second film cutter 5 includes a rotary blade 21 on a support base 20 that is raised and lowered by a screw rod 19 rotated by a vertically installed motor (not shown). The rotary blade 21 is held by a piston rod of an air cylinder 22 via a bracket, and is provided so as to be able to press against and separate from the side surface of the article by the air cylinder 22, and is rotated by a motor 23. As shown in the second figure, the film removing device 6 is positioned above the article placed on the turntable 1 and is passed to a pair of reciprocating endless chains 24 provided on the sides of the lifting and lowering position of the suction device 2. It consists of a plate 25 with an L-shaped cross section. The plate 25 is reciprocated by the chain 24 across the vertical position of the suction device 2 .

The film discharging device 7 is provided at the extreme position of the forward path of the plate 25, and is connected to a roller 26 rotated by a motor (not shown) provided below the forward path extreme position of the plate 25, and a roller 26 above the roller 26, which is connected to the air. Pressure roller 28 raised and lowered by cylinder 27
and a discharge shutter 29. The film e removed by the plate 25 of the film removal device 6 is held between rollers 26 and 28 and sent to a shutter 29.

Next, the operation of this implementation device will be explained.

First, a shrink-wrapped article is placed on the turntable 1 as shown in the first figure. In this state, the rotary blade 21 of the second film cutter 5 is pressed against the side surface of the article by the air cylinder 22 and rotated by the motor 23, and the rotary blade 21 of the second film cutter 5 is rotated by the screw rod from the cutting position of the first film cutter 4, which will be described later, to the position shown in the first figure. 1
9 moves up together with the support stand 20 and cuts in the longitudinal direction. With this device, the article is cut near both edges of opposing sides.

Next, when the turntable 1 is rotated 90 degrees, the rotary blade 15 of the first film cutter 4, which is pressed against the upper edge of the pallet a, cuts the shrink film e in the lateral direction of the article, as shown in FIG. Furthermore, a second side facing the new side of the rotated article
The film cutter 5 cuts the shrink film e at both side edges in the longitudinal direction in the same manner as described above.

Then, when the turntable 1 is rotated 90 degrees again, the first film cutter 4 cuts the shrink film e in the lateral direction of the article in the same manner as described above, and completes the cutting over the entire circumference of the article.

Thereafter, the suction device 2 is lowered by the lifting device 3 toward the top surface of the article to suction the shrink film e on the top surface. Then, as shown in the first figure, the suction device 2 is raised to separate the shrink film e from the article.

In this state, the plate 25 of the film removing device 6, which is in the position shown in the first figure, is moved by the endless chain 24 across the vertical position of the suction device 2, and the Shrink film e suspended from the suction device 2 is removed. The film is further separated from the article and moved to the position of the film discharge device 7.

When the plate 25 reaches the end of the outward journey, the shrink film e carried by the plate 25 is
The film is conveyed to above the roller 26 of the film discharge device 7, and in this state, the pressure roller 28 is lowered by the air cylinder 7 as shown in FIGS. 3 and 5, and is held between the rollers 26 and 28.

After that, the plate 25 is moved to both rollers 26 and 28.
Retreat and get out of the gap. The shrink film e is rotated by a roller 26 driven by a motor.
It is sent out to the discharge chute 29 and discharged.

(Effects) As is clear from the above description, the present invention has the effect of providing a film removal device that can remove only the film from an article entirely wrapped in film in a short time and is suitable for labor saving. .

[Brief explanation of the drawing]

1 to 5 show an example of the implementation of the present invention.
The cross-sectional view taken along the line 1--2 and FIGS. 3 to 5 are explanatory diagrams of the operation, and FIG. 6 is a perspective view showing an article completely wrapped with a film. DESCRIPTION OF SYMBOLS 1...Turntable, 2...Film adsorption device, 3...Elevating device, 4...First film cutter, 5...Second film cutter, 6...Film removal device, 7...Film discharge device .

Claims (1)

[Scope of utility model registration request] An apparatus for removing a film from an article entirely wrapped with film, which includes a turntable on which the article is placed and rotates, a film suction device installed above the turntable, and a film suction device installed above the turntable. a first film cutter that moves up and down toward the article placed on the turntable; a first film cutter that moves forward and backward near the bottom of the article placed on the turntable; a second film cutter that is movable in the height direction and is provided on the side of the article so that it can move forward and backward;
It is characterized by comprising a film removing device movably provided across the vertical position of the suction device, and a film discharging device provided at a position where the film removing device is moved across the vertical position of the suction device. film removal device.