JPH0417269Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a crate label peeling device.

(Prior Art) Conventionally, the outer periphery of a container is generally cleaned by immersing the container in a dipping bath for a long time to remove the label, and then cleaning the outer periphery with a jet stream from a spray nozzle.

Additionally, the removal of the crate label is done manually.

(Problems to be solved by the invention) The above-mentioned container cleaning requires a lot of cleaning time because the outer periphery is cleaned by the jet from the injection nozzle, and the jet hits a certain part of the container, resulting in uneven cleaning. There was a problem.

In addition, the removal of crate labels is done manually and requires a lot of time, and when trying to remove them with conventional cleaning equipment, the pressure is 40
Labels attached to resin crates at ~50Kg/cm ² are difficult to peel off.

(Means for solving the problem) Therefore, the technical problem of the present invention is to provide a crate label peeling device that can easily peel off the crate label, and the present invention aims to solve this technical problem. The technical means includes a device for conveying the crate toward the cleaning device, a high-pressure water jet nozzle that moves following the conveyance speed of the crate conveying device, and a quick return mechanism for moving the nozzle. This is a crate label peeling device consisting of a reciprocating slide device.

(Effect of the invention) According to this technical means, the high-pressure water injection nozzle can be moved in accordance with the progress of the crate, and therefore the injection time and the injection distance can be adjusted, so that the label can be peeled off. is easily carried out.

Furthermore, the nozzle can spray three times onto the same crate label surface by moving back and forth using a reciprocating slide device, and since the sprays are performed so as not to buffer each other, uneven peeling of the label does not occur.

Moreover, since the reciprocating slide device moves to follow the flow velocity of the crate and has a quick return mechanism, the attached label can be peeled off in a short time.

(Example) The embodiments shown in the drawings will be described below.

First, the entire cleaning apparatus shown in FIGS. 1 and 2 will be explained.

Reference numeral 1 denotes a crate transport device that moves within the tunnel 2 of the cleaning device.

The inside of the tunnel 2 consists of a preliminary cleaning section A, a detergent cleaning section B, and a rinsing section C. The two outer sides of the crate, which are often contaminated, and the bottom of the crate are cleaned with brushes, and the front and rear sides and inside surfaces are cleaned by spraying. Cleaning is now done through pre-washing, detergent, and rinsing steps.

Reference numerals 3, 4, and 5 are a pre-washing pump motor, a detergent pump motor, and a rinsing pump motor, respectively, and high-pressure water from each pump is injected from respective nozzles.

6 is a swing nozzle motor, 7 is a brush drive motor, and 8 is a conveyor drive motor.

The device D of the present invention is installed in a preliminary cleaning section, as shown in FIG.

The present device D consists of an air cylinder 8', and air pipes 9, 10 are connected to the front and rear of the air cylinder 8' via speed controllers 11, 12.
are connected, and the air passage is switched by the double solenoid valve 14 to supply air to the front and rear of the air cylinder 8'.

15, 15 is an air muffler, cylinder 8'
The air is supplied from the air clean unit 17 through the pipe 16.

The piston rod 13 of the air cylinder 8' is moved by speed controllers 11 and 12 slightly faster than the flow velocity of the crate, and returns quickly.

A flat nozzle body 19 is attached to the piston rod 13, and the flat nozzle body 19 includes:
It reciprocates along the rails 20, 21 of the guide 18.

The flat nozzle body 19 includes nozzles 23, 2.
4 are arranged vertically and at positions apart from each other so that the jets do not buffer each other's jets.

Reference numeral 25 indicates a water supply hose for the nozzles 23 and 24, and reference numerals 26 and 27 indicate a phototube emitter and receiver, and device D is activated when a crate is detected.

Now, when a crate with a label attached flows on the conveyor of the transport device 1, the crate is detected by the emitter and receiver, the cylinder 8' is activated, and the flat nozzles 23 and 24 follow the crate a slightly faster than the flow speed of the crate a. Peel off the label.

For example, the flat nozzle moves to follow the flow rate of the crate at a speed of 16.72 m/min with a stroke of 400 mm.

It has a fast-return mechanism that quickly returns at 24 m/min going forward and 42.9 m/min returning, and is synchronized with the movement of the crate.

For this reason, the injection to the crate label surface is performed in going and returning, and the next crate label surface is injected on the going, and the same crate label surface is injected three times.

As shown in the figure, the flat nozzle alternately advances between pinches and retreats to continuously peel off the label.

The time it takes for the label spray nozzle to pass through a label width of 140 mm, if the nozzle is fixed, is: 16.72 m/min ÷ 60 = 278.6 mm/sec 140 mm ÷ 278.6 mm/sec = 0.502 sec
(Label passing time) When the nozzle follows the crate, cylinder speed 24m/min Conveyor speed 16.72m/min Difference is 24-16.72 = 7.3m/min 140mm ÷ 7300mm ÷ 60sec = 1.15sec
(Label passing time) From the above, it is 1.15/0.502=23 approximately 2.3 times more effective than the fixed type.

Capacity when following nozzle: 1600 cases/hour When the nozzle is fixed, 1600÷2.3=695.6≒700 The capacity will be approximately 700 cases/hour.

When using a fixed nozzle, the minimum high-pressure pump power was 15 kW, injection pressure 200 g/cm ² injection water amount 2 m ³ /hour, injection nozzle angle 25°, and injection distance 100 mm, and the best conveyor speed was 7 m/min.

And the flat nozzle has an injection nozzle angle
When two were attached in a row at 25 degrees, the labels were not easily peeled off due to buffering on the label surface of the crate.

This is because the jets interfere with each other, reducing the jet pressure.

As shown in Figure 7, the nozzle is
By shifting the spray by 30 mm and spraying without buffering, the peeling was improved.

In any case, by using a method of moving the nozzle in accordance with the progress of the crate, the difference between the crate conveyance speed and the nozzle speed can be determined, thereby making it possible to adjust the spray time and spray distance, thereby making it easier to peel off the label.

[Brief explanation of the drawing]

Fig. 1 is a front view of the cleaning device, Fig. 2 is a plan view of the same as above, Fig. 3 is a front view of the proposed device, Fig. 4 is a plan view of the proposed device, and Fig. 5 is a partial front view of the proposed device;
FIG. 6 is a cutaway view of the nozzle part, and FIG. 7 is a view of the nozzle operation. 1... Crate transport device, 2... Tunnel,
A... Pre-washing section, B... Detergent washing section, C... Rinse washing section, 8'... Air cylinder, 13...
Piston rod, 18... Guide, 19... Flat nozzle body, 23, 24... Nozzle.

Claims (1)

[Scope of utility model registration request] Consisting of a device that transports the crate toward the cleaning device, a high-pressure water jet nozzle that moves to follow the transport speed of the crate transport device, and a reciprocating slide device that is equipped with a quick return mechanism to move the nozzle. Crate label peeling equipment.