JPH0159173B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a circular object packaging device for packaging a certain number of circular objects such as bicycle rims, metal rings, mass game rings, etc., in a heat-shrinkable film. It is something.

[Prior Art] Conventional packaging for bicycle rims involves folding corrugated paper from the outside of the rim to the inside, and securing the corrugated paper with tape or wire.

[Problems to be Solved by the Invention] This packaging procedure is similar to packaging, and most of it is done manually, resulting in problems such as poor work efficiency and high packaging costs.

Therefore, some attempts have been made to carry out continuous packaging using mechanical means, but since the objects to be packaged are ring-shaped and large in diameter, there are difficulties in handling them when transferring them to the packaging equipment, and automatic bulk packaging has been attempted. I haven't gotten to the point where I can do it properly.

This invention was conceived in view of the above circumstances, and its purpose is to provide a new annular product that can continuously package a required number of annular products such as rims in bulk using a heat-shrinkable film. Our objective is to provide packaging equipment.

[Means for Solving the Problems] The feature of the present invention according to the above object is that a pair of circulating carriers are installed in parallel with each other at a predetermined interval on the upper part of the machine frame, and a locking member is provided on the outside of the circulating carriers. A transfer device protruding outward at regular intervals, an upper film roll, and a lower film roll are arranged above and below the circulation conveyor, and a tension roller is provided to circulate the heat-shrinkable film from these film rolls. A film supply device that is installed vertically between the tips of the carrier and is provided with a welding and cutting member that is vertically operated by an upper air cylinder and a lower air cylinder on the delivery side of the packaged material of the heat-shrinkable film, and the above-mentioned circulation carrier. a removable support frame that is horizontally suspended over both of the above and moves together with the circulation conveyor by means of a locking member to collectively convey a required number of annular packaged objects inserted and supported in the direction of the heat-shrinkable film; It consists of a support frame and a heat shrinking device at the front of the transfer device, which has a circulation conveyor that receives the objects to be packaged.

[Function] In the above configuration, after inserting the required number of annular packages such as rims into the support frame and then placing the support frame across a pair of circulating carriers, the The locking member causes the support frame to move toward the stretched heat-shrinkable film together with the circulation carrier while vertically inserting and supporting the packaged item. When the object to be packaged reaches the position of the heat-shrinkable film, it is pressed against the heat-shrinkable film as it is, and is further pushed in, and the heat-shrinkable film is pulled out from above and below. When a sufficient amount of heat-shrinkable film is pulled out for packaging, the welding and cutting member is moved up and down by the operation of the upper and lower air cylinders, and the heat-shrinkable film is applied to the periphery of the item to be packaged. The films are then welded together and cut at the welded portions for temporary packaging.

The packaged items that have been temporarily wrapped are transferred as they are to the circulation conveyor of the heat shrinking device, and while passing through the heat shrinking device, the film is heat-shrinked to tightly package the packaged items.

[Example].

In the figure, reference numeral 1 denotes a transfer device, in which a pair of circulating carriers 2 made of chains, belts, etc. are installed in parallel to each other at a predetermined interval on the upper part of the machine frame. Further, locking members 3, 3 such as claws or protrusions are provided on the outside of the circulating carriers 2, 2 at regular intervals to protrude outward.

Reference numeral 4 denotes a film supply device, in which an upper film roll 5a and a lower film roll 5b are disposed above and below 2, 2 of the above-mentioned circulating carrier, and the heat-shrinkable film 5 is transferred from these film rolls to a tension roller 5.
c and 5d, and is vertically stretched between the tips of the circulation conveyors 2 and 2, and is moved up and down by an upper air cylinder 6 and a lower air cylinder 7 on the packaging material delivery side of the heat shrink film 5. 6a and 7a are provided.

Reference numeral 8 denotes a ladder-like support frame for vertically supporting the required number of items 9 to be packaged, such as bicycle rims. One group of objects to be packaged 8 is conveyed toward the heat-shrinkable film 5 .

Reference numeral 10 denotes a heat shrinking device installed ahead of the transfer device 1, which has a conveyor device 11 for receiving the packaged object 9 together with a support frame 8, and while passing through the heat shrinking device 10, the heat shrinkable film around the packaged object is removed. Shrink by heating.

Packaging of annular objects 9 such as rims by the above-mentioned apparatus begins with inserting a required number of objects 9 such as rims through the support frame 8 and grouping them into one group.
The support frame 8 into which the packaged object 9 has been inserted is transferred to the circulating carriers 2, 2.
When placed in front of the locking members 3, 3, the circulating carriers 2, 2 are always moving at a constant speed in the direction of the tip where the heat shrinking device 10 is located. The packaged object 9 is conveyed vertically together with the support frame 8 toward the heat-shrinkable film 5. Then, the packaged object 9 is stretched vertically on the heat shrink film 5.
However, the locking members 3, 3 are connected via the support frame 8.
Since the object 9 is pressed by the heat shrink film 5, the object 9 will enter the heat shrink film 5. Further, as the heat shrink film 5 enters, it is unwound from the upper and lower rolls and wraps the upper and lower outer sides of the packaged object 9.

Once the object to be packaged 9 has passed the film position, the upper and lower welding and cutting members 6a and 7a are pushed out from each other by the air sinkers 6 and 7, and the upper and lower heat-shrinkable films 5 are attached to the outside of the object to be packaged 9. Weld and cut.

Once the heat shrink film has been coated in this way, the packaged object 9 covered with the heat shrink film 5 together with the support frame 8 is transferred to the heat shrink device 10 by the conveyor device 11, and the heat shrink film is removed. 5 is contracted by heating and brought into close contact with the object to be packaged 9.

After passing through the heat shrinkage device 10, the packaged object 9 is removed together with the support frame 8 from the conveyor device 11, and the support frame 8 is used again to support the packaged object.

[Effects of the Invention] Since the present invention has the device configured as described above, no special operation is required for packaging, and the required number of items to be packaged can be inserted through the support frame and placed on the circulation carrier. Just by placing it on the screen, it can be automatically wrapped in heat shrink film.

In addition, the support frame provides support points for the annular packaged object at two locations, front and back, and the support point is further forward than when supported at one point, so the backward movement of the packaged object when pushing the film is reduced, and the support point Since there is no rotation around the axis, pushing is performed smoothly.

Therefore, even large-diameter annular objects such as bicycle rims can be wrapped continuously and reliably by using heat-shrinkable film, and it is also economical as it requires less manpower than conventional packaging methods. It has the following characteristics.

[Brief explanation of drawings]

The drawings show one embodiment of the apparatus for packaging annular objects such as bicycle rims according to the present invention, and FIG. 1 is a partially longitudinal side view, and FIG. 2 is a plan view. DESCRIPTION OF SYMBOLS 1...Transfer device, 2...Circulating carrier, 3...Pushing member, 4...Film supply device, 5...Heat shrink film, 5a...Upper film roll, 5b...
Lower film roll, 5c, 5d...Tension roll, 6a, 7a...Welding and cutting member, 8... Support frame, 9... Item to be packaged, 10... Heat shrinkage device,
11... Conveyor device.

Claims (1)

[Claims] 1. A transfer device in which a pair of circulating carriers are installed parallel to each other at a predetermined interval on the upper part of the machine frame, and locking members are protruded outward at regular intervals on the outside of the circulating carriers;
An upper film roll and a lower film roll are disposed above and below the circulating carrier, and a tension roller is provided to vertically stretch the heat-shrinkable film from these film rolls between the tip portions of the circulating carrier, A film supply device is provided with a welding and cutting member that is moved up and down by an upper air cylinder and a lower air cylinder on the delivery side of the heat-shrinkable film to be packaged, and is horizontally suspended between the above-mentioned circulation conveyor and is circularly conveyed by a locking member. A transport system that includes a removable support frame that moves together with the machine and transports the required number of annular packaged objects inserted and supported in the direction of the heat shrink film, and a circulation conveyor that receives the packaged objects together with the support frame. 1. An apparatus for packaging annular objects such as bicycle rims, comprising a heat shrinking device at the front end of the device.