JPH0234170Y2 - - Google Patents

Description

[Detailed description of the invention] This invention determines whether or not a nonmetallic insert is attached.
This invention relates to a cartoning machine that, if not attached, has the function of not gluing the packaging box and pushing it out of the packaging line.

Conventionally, the presence or absence of a non-metallic insert in a bottle packaging process has been determined by shaking the packaged product by hand and making a judgment based on the sound. However, this method is inaccurate and requires a long time to test all products.

On the other hand, in Japanese Utility Model Publication No. 57-16817, a product packaged with a cartoning machine is transferred on a conveyor, and a disposed magnet is used to attract the cap of the bottle, thereby separating the cap, nonmetallic insert, and packaging box. Transfer the paper with the paper lids in close contact with each other, and use the provided proximity switch to measure the distance between the cap and the head of the proximity switch to determine whether or not a nonmetallic insert is attached. This is disclosed. Although this method is faster than the manual method described above, metals that are not attracted by the magnet (e.g. It is an independent device that is separate from the cartoning machine and cannot be used with caps made of (aluminum), and has drawbacks such as requiring space. Furthermore, as with the manual method, since the finished product is inspected, the packaging box must be torn to retrieve the bottle from the product without the non-metallic insert, which results in wasted packaging. , and also has the disadvantage of being time-consuming.

This invention eliminates inspection errors and can also be used for packaging bottles with caps made of metal that are not attracted to magnets. Non-metallic inserts do not waste packaging boxes and do not require separate space. The present invention aims to provide a cartoning machine equipped with an object inspection device.

By providing a spring in the pusher of an ordinary cartoning machine, the inventors of the present invention have added a spring to the pusher's original function of pushing non-metallic inserts and bottles into the packaging box, and also moved these and the paper lid of the packaging box to the head of the proximity switch. It also has the effect of pressing down for a certain period of time. As a result, there is no need to worry about changes in the distance between the cap and the head, and it is now possible to identify bottles fitted with metal caps that are not attracted to magnets. The determination is made when inserting the non-metallic insert and bottle into the packaging box (i.e. before gluing the packaging box), so if there is no non-metallic insert, the glue injection can be stopped synchronously and the packaging box can be removed. It can be collected as is. Needless to say, there is no need for an independent inspection device, which saves space. Examples of non-metallic inserts include paper, plastic, cloth, etc., and specifically include package inserts, cards, holders, etc. made of these materials.

However, it is difficult to press with a normal pusher without a spring because there is a risk of damaging the bottle and the proximity switch, and because the overall length of the bottle is not constant depending on the lot, the pressing force must be changed individually. be.

Next, an embodiment of the configuration of the present invention shown in the drawings will be described.

The bottle 2 with the cap 1 tightened is inserted into the packaging box 5 by the spring-loaded pusher 3 so as to fold the nonmetallic insert 4 into a U-shape. When the bottle 2 and the non-metallic insert 4 are brought into close contact with the head H of the proximity switch 6 through the left and right flaps (already closed; not shown) on the back side of the packaging box 5, the distance between the cap and the head is measured. , the presence or absence of the non-metallic insert is determined based on whether the value is equal to the thickness of the non-metallic insert plus the thickness of the left and right flaps.

In the next step, the front left flap 7, right flap 8, lower flap 9, and rear lower flap 9' are closed, and glue is sprayed onto the lower flap from a glue injection device, but a nonmetallic insert is inserted. If it is determined that the fuel is not on, it will not be injected synchronously. The top flaps 11, 11' of all packaging boxes are then closed, but the ones without the non-metallic insert do not have glue on the bottom flap and do not adhere to the top flap. Further, it flows in the direction of the arrow on the conveyor, and those without non-metallic inserts are pushed out of the line by an air pusher or the like.

As explained above, according to the present invention, when a bottle with a metal cap is packaged with a non-metallic insert attached, it is possible to accurately and quickly detect whether the non-metallic insert is included or not. Moreover, the bottles and packaging boxes can be recovered intact.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the operation of the cartoning machine of the present invention near the detection device, and FIG. 2 is a schematic diagram of the spring-loaded pusher of the present invention.

Claims (1)

[Scope of utility model registration request] A packaging box 5 includes a bottle 2 fitted with a metal cap 1 and a non-metallic insert 4 attached above the cap.
In the cartoning machine that inserts and wraps the
a spring-loaded pusher 3 for inserting the bottle and the non-metallic insert into the packaging box and pressing them against the head of the proximity switch 6 for a certain period of time; Proximity switch 6 that determines whether or not the non-metallic insert is attached by measuring the distance between the heads.
A cartoning machine with a non-metallic insert inspection device.