JPH07299787A - Suction device with washing mechanism - Google Patents

Abstract

PURPOSE:To suck and exhaust a solution by the use of a negative pressure and wash a suction cup by installing it at one end of a vacuum head furnished with a venturi between an inlet and outlet for a compressed air, and equipping an opening/closing means at the inlet and the outlet. CONSTITUTION:The pressure in a suction pipe 4 is dropped by jetting a compressed air to a throttle part 3 of a venturi 2, and the air in a suction cup 1 in communication with the suction pipe 4 is sucked out so that it is maintained at a negative pressure, and thereto food etc., is attracted. An opening/closing valve 6 is installed at the inlet 5 for compressed air in the venturi 2, while the outlet 7 is fitted with a gas/liquid exhaust port 10 which is opened and closed by a piston 9 of an air cylinder 8. When washed, the suction cup 1 is introduced into a solution chamber, and the valve 6 is opened to lead in the compressed air. Thereby the solution is sucked to the cup 1 via the struction pipe 4, and after washing the cup 1 with the solution, the compressed air and solution are exhausted from the outlet 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to deep-fried food, prepared food, raw fish,
The present invention relates to an adsorption device with a cleaning mechanism that eliminates troubles caused by various bacteria in a handling device that inserts food such as vegetables and sashimi into a bag.

[0002]

2. Description of the Related Art Conventionally, an air hose is connected to a vacuum head provided with a venturi on the upper part and a cup attachment part on the lower part. The vacuum cup provided at the bottom of such a vacuum head sends air from the air hose,
When air is passed through the throttle of the venturi, the pressure in the suction pipe drops, and the air inside the vacuum cup communicating with the suction pipe is sucked out to create a suction force to suck and convey the product. An outer cup made of an elastic body is attached to one end of a vacuum head having a through a washer with a bolt, and a shaft hole provided in the bolt is communicated with the ventilation hole, and the washer is elastically attached to the washer inside the outer cup. A small cup made of a body is attached through a spacer engaged with the head of the bolt, and the spacer has a ventilation path communicating with the shaft hole of the bolt and provided with an opening between both cups. Type Vacuum Cup (Jitsuko Sho 63-12
947).

[0003]

However, the above-mentioned double-type vacuum cup in the prior art is an automatic press product conveying device for adsorbing and conveying a plate material, even when a hole is formed in the flat part of the adsorption part of the plate material. , The cup is doubled so that it can be transported, and it can adsorb a place without holes. However, when adsorbing and transporting foods and the like, it is necessary to eliminate troubles due to various bacteria.
However, there was a problem that no consideration was given to this. In view of this situation, it is an object of the present invention to provide an adsorbing device with a cleaning mechanism in which an adsorbing device that comes into contact with food, which is an article, has a cleaning mechanism.

[0004]

In order to solve the above-mentioned problems, the present invention provides a venturi for generating a negative pressure by a venturi effect between an inlet and an outlet of compressed air in an adsorption device with a cleaning mechanism. A technical means is adopted in which a suction cup is provided at one end of the provided vacuum head, and an opening / closing valve is provided at the inlet side and the outlet side of the vacuum head.

[0005]

As a result of adopting the above technical means, the present invention eliminates the need for cleaning by removing the adsorption device, or the necessity of stopping the production during the production and performing the washing as needed. It is possible to clean the adsorption device by switching the open / close valve.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. The embodiment shown in FIG. 1 is a sectional view of an essential part showing an adsorption device with a cleaning mechanism according to the present invention. This is to make the inside of the suction cup 1 a negative pressure by the Venturi effect and to adsorb the food or the like which is an object to be adsorbed. That is, by injecting the compressed air to the throttle portion 3 of the venturi 2, the pressure of the suction pipe 4 is lowered, and the air in the suction cup 1 communicating with the suction pipe 4 is sucked out to become a negative pressure, and the suction target It absorbs and conveys certain foods. This suction device with a cleaning mechanism is attached to the arm tip of a handling machine (robot) not shown, and an opening / closing valve such as a solenoid valve 6 is provided on the side of the compressed air introduction port 5 of the venturi 2 equipped with the suction cup 1, On the outlet 7 side, an exhaust / waste liquid outlet 10 is provided, which can open and close the outlet 7 by the operation of a piston 9 operated by an air cylinder 8.
The suction cup 1 is made of a flexible material such as rubber. Further, the opening / closing of the discharge port 7 is not limited to the opening / closing by the air cylinder 8 and the piston 9 of the above-described embodiment, but may be replaced with various opening / closing valves capable of shutting off compressed air, for example, electromagnetic valves.

Next, the adsorption device constructed as described above is
How to perform the cleaning function will be described together with the overall operation. Start the work by moving the arm of the handling machine. First, when the solenoid valve 6 is operated in a state where the suction cup 1 is not brought into contact with an article (for example, food), the valve of the solenoid valve 6 is switched from the closed state to the open state, and the compressed air source (not shown) Compressed air is supplied to Venturi 2. Next, when the suction cup 1 is pressed against the article in this state, the sealed portion inside the suction cup 1 formed between the article and the article becomes a negative pressure via the suction tube 4. Therefore, the article can be sucked by the suction cup 1 and pulled up to be moved to a predetermined place.

When the article is moved to the predetermined place in this way, and the valve of the solenoid valve 6 is shut off to switch from the open state to the closed state, the supply of compressed air to the venturi 2 is shut off. Due to this interruption, the inside of the suction cup 1 is also returned to the atmospheric pressure via the discharge port 7. Therefore, the article is placed in a predetermined place apart from the suction cup 1. By repeating this operation, the article is sucked and conveyed. However, when the article to be handled is food, etc., it is necessary to keep it clean since it especially dislikes germs and dirt. For this reason, it becomes necessary to wash the suction cup 1.

At the time of cleaning, the suction cup 1 is placed in a solution tank provided in the operating range of a handling machine or the like, and the solenoid valve 6 is used by utilizing the same action as the suction transfer of articles described above. When the compressed air from the compressed air source is supplied to the Venturi 2, the suction cup 1 is switched to the open state.
Since the space portion of the contact surface between the solution and the solution in the solution tank has a negative pressure through the suction pipe 4, the solution is sucked through the adsorption cup 1 and the compressed air and the solution are discharged while cleaning the adsorption cup 1. It is discharged from 7 and washed. Further, after this cleaning or at any time during the work, the dust and the aqueous solution accumulated at the tip of the suction cup 1 are blocked by the open / close valve at the discharge port 7 and simultaneously with the compressed air, the dust and the aqueous solution are sucked through the suction pipe 4. Blow away from 1. That is,
By doing so, the generation of various bacteria is prevented.

It should be noted that the above cleaning work is programmed to perform the above cleaning work at regular intervals using an electromagnetic valve, a timer, etc., taking into consideration the relation with the suction and conveyance work of the articles, and unattended It goes without saying that it is also possible to make it possible to carry out the automatic cleaning work.

[0011]

As a result of adopting the above configuration, the present invention provides
The following effects can be obtained. (1) By facilitating the cleaning of the suction cup in the handling device before putting articles such as food into a bag or the like, troubles caused by various bacteria can be eliminated.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an adsorption device with a cleaning mechanism according to an embodiment of the present invention.

[Explanation of symbols]

1 ... Suction cup 2 ... Venturi 3 ... Throttling part 4 ... Suction tube 5 ... Compressed air inlet 6 ... Solenoid valve 7 ... Discharge port 8 ... Air cylinder 9 ... Piston 10 ... Exhaust, Waste port

Claims (1)

[Claims] 1. A suction cup is provided at one end of a vacuum head provided with a venturi for generating a negative pressure by a venturi effect between an inlet and an outlet of compressed air, and an inlet side and an outlet side of the vacuum head. An adsorption device with a cleaning mechanism, characterized in that an opening / closing valve is provided in the.