JPH0138004Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to an improvement of a binding machine that automatically binds objects using packaging tape made of thin materials such as paper and film. be.

(Prior Art) As a conventional binding machine of this type, there is one shown in Japanese Patent Publication No. 55-35289, for example.
In this binding machine, an endless conveyor belt is driven along a path around the space around the objects to be wrapped. During the entire time that the conveyor belt moves around the objects to be bound, the packaging tape is driven by the tape feeder at the speed of the conveyor belt and at the same time is spring-loaded along the entire length of the conveyor belt. It is maintained in pressure contact with the conveyor belt by a plurality of pressure contact plates. Further, the pressure contact plate is supported so as to be able to swing out of the path of the conveyor belt and the packaging tape. When the tape is supplied around the object, an inward force is generated in the tape to swing the pressure plate, thereby binding the tape to the object.

(Problem to be solved by the invention) In the above configuration, a plurality of pressure plates are attached around the entire circumference of the conveyor belt, and the spring biasing force of each pressure plate is adjusted, so that these pressure plates are It is necessary to press the tape appropriately against the conveyor belt so that the tape is smoothly fed by the conveyor belt.

However, the work of attaching such a pressure contact plate is extremely troublesome, takes time to manufacture, and increases costs.

Further, due to repeated use, the elasticity of the spring decreases, and the pressure plate no longer performs its original function.The structure is complex, and failures are likely to occur.

Therefore, an object of the present invention is to provide a binding machine that has a simple structure, is less likely to malfunction, and is capable of reliably wrapping and binding tape and the like.

(Means for Solving the Problems) In view of the above problems, the present invention includes a plate-like material having a space large enough to accommodate objects to be bound inside.
and the plate-like material is formed into a frame shape as a whole so that one end is located outside the other end and has an opening between the one end and the other end, and surrounds the object to be bound. A guide plate frame that can take two positions, a working position and a retracted position to the side of the working position, and a roll for feeding the packaging tape from a roll of packaging tape to the guide plate frame. A tape feeding mechanism for feeding the tape in the direction of the working position, and a tape driving mechanism that rotates the packaging along the guide plate frame from near the one end to near the other end of the outer periphery of the guide plate frame at the working position. a guide belt that circulates the tape along the outer periphery of the guide plate frame so as to be introduced from near the one end and pulled out from near the other end; and disposed within an opening between the one end and the other end of the guide plate frame. and a gripping means for gripping the leading end of the packaging tape, the tape feeding mechanism, the guide belt, and the guide plate while the gripping means for gripping the leading end of the packaging tape are stationary. The binding machine includes a guide plate frame drive mechanism for switching and moving the frame between the work position and the retreat position.

Further, a sensor for detecting the end of tape feeding is installed adjacent to the gripping means, and a cutter means is disposed near one end of the guide plate frame so as to be able to protrude or retreat, and the cutter means protrudes. At this time, a portion of the packaging tape protruding from one end of the guide plate frame may be cut, and this cut portion may be joined to the tip of the packaging tape.

(Function) In the above configuration, the guide plate frame is initially in the working position. Then, the packaging tape is fed out from the tape feeding mechanism, and by the circular motion of the guide belt along the guide plate frame,
It revolves around the outer periphery of the guide plate frame, is introduced from near one end of the guide plate frame, is pulled out from near the other end, and is further held at its tip by a gripping means. Thereafter, the tape feeding mechanism, the guide belt, and the gripping means are kept stationary, and the guide plate frame is moved by the guide plate frame drive mechanism.
It moves from the working position to the retreat position, and at the same time, the tape feeding mechanism is driven in the direction of returning the packaging tape, so that the packaging tape can be wrapped around the objects to be bound. In addition, after completing the bundling, cut the packaging tape appropriately,
The cut portion and the tip may be appropriately joined.

(Example) An example of the present invention will be described in detail based on the drawings.

In FIG. 1, reference numeral 14 denotes a guide plate frame, which has a space large enough to accommodate the object 2 to be bound inside, and has one end 1 of the plate-shaped material.
It is formed into a substantially rectangular enclosing frame shape as a whole so that the opening 25 is located between the one end 14a and the other end 14b, with the end 4a being on the outside of the other end 14b.

Furthermore, the guide plate frame 14 is located at a working position (a third
It can take two positions: a position (A position in Figure 3) and a retracted position (position B in Figure 3) where it retreats laterally from the working position.

Note that FIG. 1 shows the overall configuration of the binding machine according to the present invention when the guide plate frame 14 is in the working position.

In FIG. 1, the tape feeding mechanism includes a roll 1 around which a packaging tape 3 made of a thin material such as film is wound, and a feeding roll for feeding the packaging tape toward a guide plate frame 14 in a working position. 4 and tape guide plate 24
, a control device 5 for controlling the driving of the delivery roll 4 , and an auxiliary roll 6 for delivering the packaging tape 3 in cooperation with the delivery roll 4 .

A plurality of guide rolls 15, 15, . . . are arranged around the guide plate frame 14, and a guide belt 16 is stretched around each guide roll 15. The guide belt 16 is
By driving the drive roll 17 in the direction of the arrow in FIG. 1, one end 14a of the outer periphery of the guide plate frame 14
The guide plate frame 14 is driven around the guide plate frame 14 from the guide plate frame 14 to the other end 14b.

In addition, in FIG. 1, in the opening 25 between the one end 14a and the other end 14b of the guide plate frame 14, there is a gripping means 23 for gripping the tip of the packaging tape 3, and a gripping means 23 adjacent thereto. , and a sensor 18 for detecting the leading end of the packaging tape 3 are attached. Furthermore, guide plate frame 1
A cutter member 19 is disposed below the opening of the packaging tape 19, and when the guide plate frame 14 is in the retracted position, the cutter member 19 protrudes upward to cut the packaging tape 3.
It is becoming more and more like cutting. Further, the cutter member 19 has a built-in heater 22 which is urged to protrude upward by a spring 21, and the heat of the heater 22 causes the cutter member 19 to cut the material contained in the packaging tape 3 at the same time as the cutting. The adhesive is melted under pressure to join the cut portion and the tip of the packaging tape 3.

As shown in FIGS. 2 and 3, a support rod 7 extending in the front-rear direction (horizontal direction in FIG. 3) is disposed at the rear of the upper portion of the delivery roll 4. As shown in FIGS.
A slide member 10 is attached to the support rod 7 so as to slide in the front-rear direction via a pair of connecting members 9, 9 holding slide tubes 8, 8 based on the output signal of the sensor 18. Furthermore, a substantially rectangular hole 1 corresponding to the size of the guide plate frame 8 is formed in the front of the slide member 10.
1, the support plate 12 has a pair of left and right mounting pieces 1.
3 and 13, and are mounted vertically. A guide plate frame 14 is provided on the front side of the support plate 12 so as to protrude from the support plate 12.

Therefore, the guide plate frame 14 responds to the movement of the slide member 10 along the support rod 7 with respect to the stationary state of the tape feeding mechanism, the guide belt 16, and the gripping means for gripping the leading end of the packaging tape 3. Therefore, it can be switched between the working position (position A in FIG. 3) and the retreat position (position B in FIG. 3).

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

When bundling is performed, when the feed roll 4 is driven by an output signal from the control device 5, the packaging tape 3 is guided from the packaging tape roll 1 to the tape guide plate 24 and moved to the working position of the guide plate frame 14. It is thrown out in the direction. At this time, the guide belt 16 is rotated along the outer periphery of the guide plate frame 14 by the drive roll 17, so when the tip of the packaging tape 3 reaches the vicinity of one end 14a of the guide plate frame 14, It is introduced between the guide belt 16 and the guide plate frame 14, goes around the outer periphery of the guide plate frame 14, and is led out from near the other end 14b of the guide plate frame 14. Furthermore, when the leading end of the packaging tape 3 reaches the other end 14b of the guide plate frame 14,
The tip is gripped by the gripping means 23, and the sensor 18 generates a detection signal. Based on this detection signal, the slide member 10, that is, the guide plate frame 14 slides rearward along the support rod 7. Thereafter, the control device 5 causes the delivery roll 4 to be slightly driven in the return direction (in the direction opposite to the direction of the solid arrow in FIG. 1), and the articles 2 to be bound are firmly tightened with the packaging tape 3. Finally, the packaging tape 3 is cut by cutter means 20.
After the packaging tape 3 is cut, the cut portion and the tip end of the packaging tape 3 are joined together by the heater 20, completing a series of binding operations.

Therefore, according to the above embodiment, the packaging tape 3 fed out from the tape feeding mechanism is supplied around the object 2 to be bound by the circular movement of the guide belt 16 along the outer periphery of the guide plate frame 14. As a result, the objects 2 to be bound can be bound regardless of the thickness of the packaging tape 3, and running costs can be significantly reduced. In addition, since the guide plate frame 14 is switched between the working position and the retreat position and the packaging tape 3 is wrapped around the objects 2 to be bound, the structure is simplified, and reliable binding can be performed, and there is no risk of failure. As a result, the reliability of the device is significantly improved. Furthermore, by simply changing the size of the guide plate frame 14, it is possible to easily bind large or small objects regardless of the size of the objects 2 to be bound. Therefore, the commercial value of the binding machine is significantly improved.

(Effects of the invention) As described above, according to the invention, the packaging tape is fed out from the tape feeding mechanism and is supplied around the object to be bound by the circular movement of the guide belt along the outer periphery of the guide plate frame. This makes it possible to reliably bind objects even with a thin tape made of paper, film, etc., regardless of the thickness of the packaging tape. In addition, a single guide plate frame made of a plate-like material is used, and by switching and moving this guide plate frame between a working position and a retreat position, the packaging tape can be wrapped around objects to be bound. , the structure is simplified, the reliability of the device is significantly improved, and manufacturing costs can be kept low. In addition, continuous binding is possible, and by changing the size of the guide plate frame, it is possible to freely bind items regardless of the size of the items to be bound. Therefore, the commercial value of the binding machine is significantly improved.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the binding machine according to the present invention, FIG. 1 is an overall configuration diagram showing a state in which objects to be bound are bound with tape, and FIGS. 2 and 3 are They are a front view and a side view of main parts, respectively. DESCRIPTION OF SYMBOLS 1... Roll of packaging tape, 2... Item to be bound, 3... Packaging tape, 4... Feeding roll, 10... Slide member, 14... Guide plate frame, 16... Guide belt, 23... ...gripping means, 25...opening.

Claims (1)

[Claims for Utility Model Registration] A plate-shaped material having a space large enough to accommodate objects to be bound inside, and one end of the plate-shaped material being outside the other end, and the one end and the other end It is formed into an enclosing frame shape as a whole with an opening in between, and has two positions: a working position where it surrounds the object to be bound, and a retracted position where it is retracted to the side of the working position.
a guide plate frame capable of assuming two positions; a tape feeding mechanism for feeding the packaging tape from a roll of packaging tape in the direction of a working position of the guide plate frame by a feeding roll; By being driven around the guide plate frame from near the one end to near the other end of the guide plate frame outer periphery, the packaging tape is moved along the outer periphery of the guide plate frame from near the one end. a guide belt introduced and pulled out from near the other end to circulate; a gripping means disposed within an opening between one end and the other end of the guide plate frame for gripping a tip end of the packaging tape; , the tape feeding mechanism, the guide belt,
and a guide plate frame drive mechanism for switching and moving the guide plate frame between the working position and the retracted position when the gripping means for gripping the leading end of the packaging tape is stationary. Characteristic binding machine.