JPS61892A - Seal material detector for depositing empty can recovery apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention relates to a so-called deposit-based can collection machine that imposes a certain surcharge on the sales amount and returns the surcharge upon collection. , relates to a sealing material detection device installed inside the device for detecting open cans specified by a deposit system to distinguish them from general open cans.

(Prior art) The above-mentioned deposit system is being promoted mainly by local governments to combat the pollution caused by open cans of juice and other products that are scattered around the streets and causing various problems, but in order to implement it, Detection means must be installed in the collection machine to distinguish between open cans specified by the deposit system and ordinary open cans. However, this detection device generally requires sophisticated recognition means combined with a computer and a sealing material with a special code written on it, which causes the economic cost of the Ikioi recovery machine to soar. This puts pressure on the finances of local governments with limited budgets and is a major obstacle to promoting the deposit system.

(Problems to be Solved by the Invention) Therefore, the invention was made after various studies to propose a detection device that is both economical and has a detection function. The above object has been achieved by focusing on the so-called optical sensor that has been used for a long time, and developing a technology that allows objects to be distinguished from each other. Let's explain its configuration based on.

As shown in FIG. 1, a sealing material (2) with an uneven surface formed on the surface is pasted to cause diffused reflection in order to distinguish between general open cans and open cans (1) specified by the deposit system.

The most suitable method for forming the uneven surface is applying glass powder or molding plastic.

On the other hand, the recovery shore (3) is equipped with a means for maintaining a constant attitude of the open can when the open can coated with the sealing material (2) is put into the machine. This posture is maintained to ensure that light enters the sealing material 9) from the light projecting part (4a) of the optical sensor (4), which will be described later.1For example, as shown in FIG. 6) to the crushing chamber (7) in the aircraft, etc., and the canister is slid down the guideway (5) on the straight line.

Next, sealing material (2) for the can body held in the above-mentioned constant posture
The light projecting section (48) of the optical sensor is disposed at a position where it can illuminate the light at an oblique angle of about 35 to 85 degrees with respect to the vertical direction. This optical sensor (4) refers to a sensor in which the light receiving section senses the light emitted from the light projecting section by the resistance change, thermal change, generation of photocurrent, etc. due to the light. or.

The reason why the irradiation angle is set at an oblique angle of 35 to 85 degrees is to achieve the most efficient diffused reflection (see FIG. 3).

Furthermore, a light receiving section (4b) that operates by sensing this scattered light is disposed at a close position that can receive a part of the scattered light that is diffusely reflected from the sealing material (21), for example, at a distance of 2 to 3 cm. That is, the light receiving section (4b) is the light projecting section (4a).
When the light is irradiated onto a part other than the sealing material (2) (such as the can body itself), the reflected light leaves the light receiving part (4b) and is not detected, but when it is irradiated onto the sealing material (2) Scattered light based on diffused reflection can be reliably sensed.

The light receiving section (4b) may be either integrated with the light projecting section (4a) or separated (the figure shows an integrated type).

Then, this light receiving part (4b) is connected to the levy payment device fi1 (8
1 to constitute the apparatus of the present invention.

(Operation of the invention) When either the open can (1) to which the sealing material (2) designated by the deposit system has been affixed or a general open can is put into the collection machine, the open can is transferred to the taxiway. Ski down along (5).

Then, when the downhill slide while maintaining a constant posture enters the irradiation range from the light projection part (4a) of the optical sensor (4), the irradiation light is first projected onto a part of one can body.

If this is a general open can, the can body made of aluminum or the like will totally reflect the irradiated light in one direction, so it will not be captured by the light receiving part (4b) of the optical sensor (4). That is, the sensing function does not operate (see Figure 4).

On the other hand, if this is an open can specified by the deposit system, when the irradiation light from the light projecting part (4a) is projected onto the sealing material (2), diffuse reflection will be caused on the surface formed by the uneven surface. Since the reflected light is scattered around, the light receiving section (4) can reliably capture it, meaning it senses and detects that it is the designated can (see Figure 3). The sensing of this optical sensor (4) is transmitted to the levy payment device.

From there, the allowance is automatically paid to the contributor.

(Effects) Comparing this detection device with a conventional one equipped with a sophisticated recognition device, it is not as accurate in a strict sense, but 1 such a strictness is not originally required of this type of device. However, one device can sufficiently fulfill the detection function. Not only is it excellent and economically viable, it can also contribute to the widespread spread of the deposit system.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view of a can body with a sealant pasted on it, FIG. 2 is a perspective view of the main part of the can body sliding down a guideway, and FIG. 3 2 is a partially cutaway side view of the state shown in FIG. 2, FIG. 4 is a partially cutaway side view of a general open can sliding down the guideway, and FIG. 5 is a longitudinal sectional side view of the entire device. +1)・・・・・・・Can body, (2)・・・・・・・
...Sealing material, (3)......Collection machine. (4)......Light sensor, (4a)...
・・・・・・Light projection part, (4b)・・・・・・・・・
Light receiving part, (5)... Taxiway, (6)...
...... Input port. (7)・・・・・・Crushing chamber, (8)・・・・・・
...Tax payment device. Patent applicant: Taiyo Netsu Daiichi Co., Ltd.
figure on pull

Claims (1)

[Claims] A sealing material (2) having an uneven surface is pasted on a part of the can body (1) of juice etc. to cause diffused reflection of light.
On the other hand, the empty can collecting machine (3) is equipped with a means for maintaining the posture of the can body constant when the empty cans of juice etc. The light emitting part (4a) of the optical sensor (4) is arranged at a position where light can enter at an oblique angle of ~85 degrees, and a certain amount of scattered light reflected from the sealing material (2) can be illuminated. A sealing material detection device in a deposit-based open can collection machine, characterized in that a light receiving part (4b) of a light sensor (4) is arranged in a close position.