JPH0745808Y2 - Coin inspection transportation route of coin processing machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a coin inspection passage of a coin processing machine for discriminating and counting coins from inserted coins, sorting the coins by denomination, and storing the coins.

[Conventional technology]

The structure of the conventional inspection passage will be described with reference to FIGS. 4 to 6.

FIG. 4 is a plan view of a conventional example, FIG. 5 is a cross-sectional view taken along line VV of FIG. 4, and FIG. 6 is a schematic plan view of the periphery of a general public inspection passage.

In these figures, the coin 1 ejected from the coin ejecting device 13 in the direction of arrow P is placed on the surface of the conveying path plate 2 made of a metal material such as a casting having abrasion resistance which constitutes the bottom of the conveying path of the coin. Be transported. The conveyor belt 14 is guided by the wear-resistant coin guides 3 and 4 made of a metal material, which are screwed to the conveyor path plate 2 and constitute the both sides of the conveyor path.
Thus, the coin 1 is conveyed while being pressed against the conveying road surface H. And the coil sensor 5 that checks the coin material
And is transported to the next processing step.

The coil sensor 5 is fixedly installed on the sensor holder 6 at a position lower than the conveying road surface H by a dimension t so as not to come into direct contact with the conveyed coin 1. Since the change in the magnetic velocity when the coil passes over the coil sensor 5 is used for checking the material of the coin, a magnetic metal that focuses magnetic flux between the coil sensor 5 and the coil 1 is used. You can't put the kind. For this reason, a hole 7 is formed in the upper portion of the coil sensor 5 in the middle of the conveyance road surface plate 2 so that there is no metal, and the sensitivity of the accumulation sensor of metal powder or the like is made dull in this hole. The hole is closed by using a sensor cap 8 made of a magnetic material having wear resistance such as stainless steel so that the coin does not get caught at the edge of the hole and hinder the flow of the coin.

[Problems to be solved by the device]

In the above-mentioned conventional example, when the sensor cap 8 is embedded in the hole 7 in the middle of the transport road plate 2 with an adhesive or the like, a gap is generated when the hole diameter and the sensor cap outer diameter are different,
Foreign matter may be blocked or deformed coins may get caught, hindering coin transport.

If the sensor cap is slightly protruding from the transfer surface, the coin may be caught and hinder the transfer of coins.

If the sensor cap is slightly retracted from the transport surface, coins will be caught on the edge of the hole, and metal powder or the like will accumulate, making the sensor sensitivity dull.

As a result, the hole A diameter and the sensor cap outer diameter increase the finishing accuracy of each part so that no gap is generated.

Since it is very difficult to bond the B sensor cap to the conveyance road surface with the correct surface height, it is very difficult to bond the sensor cap to the conveyance road surface plate first, and then a flat conveyance surface is formed by polishing.

Since such finishing processing is required, there is a problem that the manufacturing cost is high.

The object of the present invention is to make it possible to easily adjust the height of the upper surface of a non-magnetic member such as a sensor cap that protects the coil sensor to the conveyance path surface, and to create a gap near the periphery of the coil sensor where metal powder or the like accumulates. It is to provide a coin inspection passage for a coin processing machine that never occurs.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, the coin transfer path of the coin processing machine of the present invention has an upper surface on both sides of a sensor substrate made of a non-magnetic material with a coil sensor adhered and fixed to the back surface, and the transfer of this sensor substrate. The upper surfaces of both sides of the conveying path face plate that come into contact with each other in the front-back direction are closely fixed to the lower surfaces of the pair of coin guides that guide the coins on both sides of the conveying path.

[Action]

Both side surfaces of the sensor board and the conveyance road surface plate are in close contact with the lower surfaces of both sides of the pair of coin guides. Match each other.

Since the coil sensor is brought into close contact with the back surface of the sensor substrate, a sensor substrate that is sufficiently larger than the size of the coil sensor can be used, and the abutting part between this sensor substrate and the conveyance road surface plate can be located sufficiently far from the coil sensor. The metal powder in the gap between the contact portions does not affect the sensitivity of the coil sensor.

〔Example〕

1 is a cross-sectional view of the embodiment and shows a II cross-section of FIG. 2, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is III of FIG.
It is a III-III cross-sectional view, and those given the same reference numerals as those in the conventional example and the respective drawings have approximately the same functions, and hence the description thereof may be omitted below.

In the figure, a coil sensor 5 including an electromagnetic coil for checking the coin material and a core is embedded on the upper surface of a sensor holder 9 such as a polycarbonate. The rectangular convex portion 9a of the height t ₁ of the embedded portion of the coil sensor 5 of the sensor holder 9
Is fitted into the square hole 10a of the conveyance road surface plate 10 having a plate thickness t _{2 with} the square hole 10a corresponding thereto. The sensor substrate 11 having an outer shape slightly smaller than the size of the square hole 10a and made of a non-magnetic (including low magnetic) material such as austenitic stainless steel having a plate thickness t ₃ = t ₂ −t ₁ is used. Drop it into the square hole 10a. Then, both sides of the sensor substrate 11 are pressed from above by the pair of coin guides 3 and 4 forming the side surface of the transfer passage, and the sensor holder 9 is collectively screwed with the screws 12 to form a coin inspection transfer passage. It should be noted that chamfers 11m and 10m may be provided at the fitting portion between the square hole 10a and the sensor substrate 11.

In the above-mentioned embodiment, if the gaps are provided as indicated by the alternate long and short dash lines 9x and 9y, the condition of the plate thickness of t ₁ , t ₂ and t ₃ is eliminated, and the accuracy control and the assembly are further facilitated. The sensor holder 9 may be replaced with a simple plate material, or the coil sensor may be adhered to the sensor holder 9 without using this plate material. Also square hole 10a
It is also possible to bring the conveyance road surface plate 10 into contact with the front and rear of the sensor board 11 as separate members in the front and rear of the conveyance direction, and bring the sensor board 11 into close contact with the lower surface of the coin guide and fix it with a unique screw or the like. .

[Effect of device]

The coin transfer path of the coin processing machine of the present invention has a transfer path plate which is in contact with the upper surfaces of both sides of the sensor board made of a non-magnetic material with the coil sensor closely attached and fixed to the back surface and the front and rear of the sensor board in the transfer direction. Since the upper surfaces of both sides of the coil are closely attached to the lower surfaces of the pair of coin guides that guide the coins on both sides of the transport path, the sensor substrate that protects the upper part of the coil sensor and the transport path surface around it Means that the guide rail is automatically flattened with respect to the reference surface, there is an effect that the coin is not caught and the metal powder is not accumulated, and there is an effect that the finishing process in manufacturing the passage member becomes unnecessary.

[Brief description of drawings]

1 is a cross-sectional view of the embodiment and shows a II cross-section of FIG. 2, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is III of FIG.
FIG. 4 is a plan view of a conventional example, FIG. 5 is a cross-sectional view taken along line VV of FIG. 4, and FIG. 6 is a schematic plan view of the periphery of a general public inspection passage. . 1 ... coin, 2,10 ... conveying road surface plate, 3,4 ... guide rail,
5 ... Coil sensor, 6, 9 ... Sensor holder, 7 ... Hole, 8 ...
Sensor cap, 11 ... Sensor board.

Claims (1)

[Scope of utility model registration request] 1. Transporting a top surface on both sides of a sensor substrate made of a non-magnetic material having a coil sensor closely adhered and fixed to the back surface, and top surfaces on both sides of a transport road face plate that abuts in the front and rear of the sensor substrate in the transport direction. A coin inspection passage for a coin processing machine, characterized in that a pair of coin guides for guiding coins on both sides of the passage are closely fixed to the lower surfaces of both sides.