JPS5934576B2 - Closing tape cutting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a closing tape cutting device that automatically cuts a closing tape sealing the top surface of a carton such as a cardboard box to open the lid 5.

Conventionally, the lids of cartons such as cardboard boxes for packing chicken eggs and other items have been closed by pasting tape 2 on the abutting portions of the flaps Ia and Ia on the top side of the carton 1, as shown in Figure 1. There are 10 things done.

However, in the process of automatically taking out the contents packed in this way, the tape 2 is cut in advance, the lid is opened, and the contents are taken out by an appropriate removal device. As shown in FIG. 2, the cutting device 15 cuts the part to which the tape 2 is pasted downward in a reverse direction while passing it along the guide 3 having a V-shaped cross section with the side sealed with the tape 2 facing downward. The carton 12 is deformed into a shape, and the fixed blade touches the tape 2 that forms the top of the inverted mountain shape.
It is cut by the progression of 0.

Therefore, if the contents move inside the carton, such as chicken eggs, and the contents are not in good condition, it is not desirable to turn the carton 1 upside down or to deform the lid part to which the tape 2 is attached. As shown in Figure 253, if the tape 2 is extended to both end faces lb and lb of the carton 1 and bent and pasted, the lid part will not deform even if it is reversed, and only the tape 2 will be fixed. It is extremely difficult to cut by applying the blade to the blade. 30 In view of this, the present invention automatically removes the tape without any problem, even in the case of a carton containing contents that would be unsuitable if it was turned over, or a carton with the tape bent and pasted to the end surface. The purpose of this invention is to provide a closing tape cutting device 35 that can cut and open the lid.

The present invention will be described below with reference to embodiments shown in the drawings.
FIG. 4 shows a plan view of an embodiment of the apparatus of the present invention, and FIG. 5 shows the same front view, in which a machine frame 5 is installed astride a roller conveyor 4 on which cartons 1 sealed with tape 2 are conveyed. Ori,
A stopper 6 is disposed between the rollers of the conveyor 4 so as to be able to appear and retract from the upper surface of the conveyor 4 for stopping the cartons 1 being conveyed at a predetermined position.

Wheels 10, 10 of a truck 9 are mounted on rails 8, 8 provided on a horizontal upper frame 7 of the machine frame 5, and are provided so as to be able to run freely across the conveyor 4.

The truck 9 has two motors 11 installed on the machine frame 5,
A part of the transmission member 15 is rotatably driven from a speed reducer 13 which is driven in normal and reverse directions by a transmission member 12 via a transmission member 14 such as a chain, and is fixed to an endless transmission member 15 disposed along the upper frame 7. The carriage 9 is configured to move to the right or to the left by the forward and reverse rotation of the drive unit 15.

A bracket 16 is provided vertically on the truck 9, and the base end of an arm 17 is pivotally supported by a shaft 18 at the lower end of the bracket 16.

A disc-shaped cutter 19 is rotatably supported at the tip of the arm 17, and rotation is transmitted to the shaft 20 of the cutter 19 from a motor 21 mounted on the cart 9 via a transmission member 22 such as a V-belt. It is becoming more and more common.

Further, a guide roller 23 is pivotally attached to the tip of the arm 17, and this guide roller 23 is engaged with a cam rail 24 disposed along the upper frame 7.

The cam rail 24 has at least a range corresponding to the entire width of the carton 1 placed on the conveyor 4 in the tape cutting direction.
The guide roller 23 is formed on a low step 24a.
When the cutter 19 is located, the cutter 19 touches the tape 2 of the carton 1.
It is designed so that it can be cut in close contact with the .

The cut by the naori vine 19 is made by the weight of the cutter 19 including the arm 17, but if necessary, a spring may be applied in the direction of the cut. In the figure, 25 is a motor that drives the conveyor 4, and 26 is an air cylinder that raises and lowers the stopper 6 mentioned above.

Next, the operation of the above embodiment will be explained.

When the carton 1 carried on the conveyor 4 reaches the machine frame 5, it hits the stopper 6 and stops at a predetermined position, and at the same time, one of the motors 11 is driven to move the cart 9 to the right in the figure.

As the trolley 9 travels, the guide roller 23 falls onto the lower part 24a of the cam rail 24, the arm 17 rotates clockwise, and the cutter 19 comes into contact with the tape cutting position on the top surface of the carton 1.

The tape 2 is cut by moving the cart 9 in this state, and when the tape 2 is exceeded, the guide roller 23 rises again from the lower part 24a, and the cutter 19 rises accordingly. When cutting of the tape 2 is completed as described above, the stopper 6 descends, and the cut carton 1 is sent to the next process by the conveyor 4. After the carton 1 has passed, the stopper 6 protrudes again and the next process is carried out. Park carton 1 in place.

Thereafter, the reversing clutch of the other motor 12 is activated, and the transmission members 14 and 15 are reversed to move the truck 9 to the left in the figure.
4, the cutter 19 comes into contact with the tape 2 and cuts it.

In this way, the tape 2 on the top surface of the carton 1 that is sent one after another can be cut. As explained above, the present invention provides an apparatus for automatically opening cartons whose lids are sealed with tape, in which a cart is moved across the upper frame of a machine frame installed astride a conveyor on which cartons are conveyed. A disk-shaped cutter is rotatably attached to the tip of an arm that is movable and pivotally supported on the trolley, and the arm is lowered to the tape cutting position by means of a cam rail over at least the tape cutting length range. Therefore, the tape can be cut without inverting the carton, so it can be applied even when the contents are easily damaged, such as eggs, and the tape seals the carton. It is highly versatile because it can cut regardless of whether it spans the entire length of the carton, and it has various effects such as being able to deal with changes in carton height by replacing the cam rail. be.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of a carton with a closure tape pasted, Fig. 2 is an explanatory diagram showing a conventional means for cutting the closure tape shown in Fig. 1, and Fig. 3 is an illustration of a carton other than the closure tape. FIG. 4 is a plan view showing an embodiment of the closure tape cutting device of the present invention, and FIG. 5 is a front view thereof. 1...Carton, 2...Tape, 4.
... Conveyor, 5 ... Machine frame, 6 ...
...Stopper, 7...Top frame, 8,8...
Rule, 9... Trolley, 10... Wheels,
11, 12... Motor, 13... Speed reducer, 14, 15, 22... Transmission member, 16-...
...Bracket, 17...Arm, 19.
...Katsuta, 21...Motor, 23...
...Guide roller, 24...Cam rail,
24a...Lower part.

Claims (1)

[Claims] 1. In a tape cutting device that opens cartons whose lids are sealed with tape by cutting the tape, there is a machine frame installed perpendicularly to the conveyor on which the cartons are conveyed, and a machine frame installed on this machine frame. A cart supported so as to be able to run freely across the conveyor, an arm whose one end is pivotally supported so as to be swingable in the vertical direction at the bottom of a bracket that hangs down from the cart, and a shaft attached to the free end of this arm. a disc-shaped cutter rotatably driven by a drive source mounted on the truck; a cam rail disposed on the machine frame and engaged with the free end of the arm; and a carton conveyed on the conveyor. a stopper for stopping the tape sticking part so that it is positioned directly below the cutter; the cam rail has a lower portion extending over the length of the tape to be cut on the carton on the conveyor; A closing tape cutting device characterized by cutting the tape of a carton and opening the lid with a cutter that descends under its own weight along the lower part.