JPH0654505U - Baler arch - Google Patents

Abstract

(57) [Summary] [Purpose] The tape can be smoothly loaded into the guide groove of the arch, and the tape made of thin film can be packed without any problem. [Structure] A tape guide groove is provided on the inner peripheral surface of the arch 18 provided on the table 11, and a lid sheet 33 provided so as to open and close the guide groove is formed on the inner peripheral surface of the arch 18 as one piece over the entire length of the arch 18. , And the lid sheet 33 to the solenoid 4
1 to move laterally, fully open the guide groove during the tape tightening process,
Remove the tape from the guide groove.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a packing machine for packing the outer circumference of an object to be packed with a thermoplastic tape, and can perform packing using an arch for arranging the tape on the outside of the object to be packed, particularly a thin strip-shaped film tape. The opening and closing structure of the arch.

[0002]

[Prior art]

 An automatic packing machine that uses a thin strip of film as tape to wrap the outer circumference of an object to be packed is a frame-shaped arch that is partially cut up on a table. Place the object to be packed on the table with the tape loaded inside, and perform the first clamping process of the tape tip, the tightening process of tightening the object to be packed with the tape detached from the arch by tightening the tape, and after the tightening. It is configured to sequentially perform a second clamp step of holding the middle of the tape into a loosening prevention shape, a cutting step of cutting the middle of the tape, and a welding step of welding both ends of the tape which face each other vertically. The tape will be loaded into the arch after each packing.

A thin strip-shaped tape used for packaging has, for example, a width of 50 mm and a thickness of 0.10 to 0. Formed using 15 mm thermoplastic synthetic resin, such tape has a weak waist and is easily deformed.

An arch in a conventional packing machine is provided with a tape guide groove having a width for accommodating a film in a length direction of an inner peripheral surface of the arch, as proposed in Japanese Patent Publication No. 4-55930. An elastic flap sheet for opening and closing the tape guide groove is arranged on the peripheral surface, one side edge of this flap sheet is fixed to the outside of the tape guide groove, and the other side edge closes the opening of the tape guide groove. When the tape is loaded into the tape guide groove, the tape prevents the tape from coming off the guide groove, and during the tape tightening process, the tape pushes the flap sheet open and comes off the guide groove.

[0005]

[Problems to be solved by the device]

 By the way, since the thin tape is formed by using a thin film as described above, in the arch where the flap sheet is pushed open and released during the tightening process, the tape comes into contact with the flap sheet, which causes the tape to come out. There is a problem that it is deformed, especially wrinkles and bends occur on the side where the flap sheet is pushed open, and the packaging state becomes unreadable.

Therefore, an object of the present invention is to provide an arch of a packing machine that can perform packing using a tape made of a thin film without causing deformation of the tape.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention has a structure in which a partially cut frame-shaped arch is erected on a table, and a tape is provided in a tape guide groove provided in the inner peripheral surface length direction of the arch. In the arch of the packing machine to be loaded, a lid sheet for opening and closing the tape guide groove, which is arranged along the inner circumferential surface of the arch, is formed into one continuous piece over the entire length of the inner circumferential surface of the arch. The tape guide groove is moved in the width direction to open and close the tape guide groove.

In the above, the lid sheet is configured to move in the width direction of the tape guide groove so as to close part of the width of the tape guide groove in the closed position and open the entire width of the guide groove in the open position. You can also

[0009]

[Action]

 With the lid sheet in the closed position, the tape is loaded in the tape guide groove of the arch, the tape does not come off from the guide groove due to the portion that closes the guide groove of the lid sheet, and the lid sheet has a total length of one sheet. Since it is an object, it is smoothly loaded over the entire length of the guide groove.

During the tape tightening process, the lid sheet moves to the open position and opens the entire width of the tape guide groove, so that when the tape is released from the guide groove by tightening, the tape does not come into contact with the lid sheet at all. Therefore, the tape will not be deformed and can be packaged with a beautiful finish.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows the overall structure of the automatic packing machine, in which a slide plate 12 is provided on the upper surface of a table 11 on which an object to be packed is placed so as to move back and forth, and directly below the slide plate 12 in the table 11. Further, the first clamp 13, the press base 14, and the second clamp 15 are arranged so as to be vertically movable by the cam mechanism 17 by being supported by the guide 16, and a frame separated by the slide plate 12 on the table 11. -Shaped arch 18 is erected, and a tape feeding / tightening mechanism 19 for feeding the tape A into the arch 18 and tightening the tape A is installed in the table 11, and between the tensioning mechanism 19 and the tape reel 20. Is provided with a tape pool 21.

The delivery and tightening mechanism 19 is composed of a pair of rollers 22 and 23 that sandwiches the tape A and is rotated by a motor. One roller 22 is provided with a pulse ring 24, and the proximity switch 25 uses the pulse ring 24. The motor is controlled by detecting the rotation of the tape, and the length of the tape A sent toward the inside of the arch 18 is made constant.

In order to improve the accuracy of the feeding length of the tape A by the pulse ring 24, the proximity switch 25, and the motor, as shown in FIG. Is placed in the guide groove, and a micro switch 26 for detecting the tip of the tape A is arranged by pushing the detector with the tip of the tape A moving in the guide groove. The motor for driving the roller 22 is switched to a low speed by the detection signal.

As described above, when the speed of the motor is switched by the micro switch 26, in feeding the tape A into the arch 18, the first half is performed at high speed to improve the work efficiency, and the latter half is reduced in speed, so that the motor is driven. Since the motor is stopped in the state of low-speed rotation, it is possible to prevent the motor from rotating too much due to inertia when the motor is stopped, thereby improving the accuracy of the feeding length of the tape A.

The tape A is wound around a reel 20 and is pulled out by the rotation of the rollers 22 and 23 in the delivery direction, passes through the guide 27 and the guide portion of the first clamp 13, and is placed inside the arch 18. After being fed from the end on the side of the second clamp 15 and passing through the entire length of the arch 18, its tip projects from the end on the side of the first clamp 13 and faces directly below the slide plate 12.

A vertical movement of the first clamp 13, the press base 14, and the second clamp 15 and a front and rear portion of the slide plate 12 are provided by a cam mechanism 17, and the first clamp 13 is taped together with the slide plate 12 when moving upward. The front end side of A is clamped, and the second clamp 15 rises after the tape A tightening step, and the tape A is clamped in the middle of the tape A with the slide plate 12 so that the tape A is not loosened.

Further, the press table 14 presses the tape A midway and the tip side so as to overlap with the lower surface of the slide plate 12 when moving upward, and the upper part of the press table 14 faces the second clamp 15. A heater mechanism for welding the tape A is provided on the surface, and the upper edge corner edge of the surface facing the first clamp 13 side and the upper receiving edge of the first clamp 13 cause the tape A to move when the press table 14 is moved upward. It forms a cutting mechanism that cuts the middle of the process.

The arch 18 erected on the table 11 is formed in a frame shape separated at a lower portion facing the slide plate 12, and a guide groove 31 having a width to accommodate the tape A is formed on the entire length of the inner peripheral surface thereof. As shown in FIG. 3, on the bottom surface of the guide groove 31, there are provided longitudinal ridges 32 arranged in the width direction so as to reduce the contact resistance of the tape A.

A lid sheet 33 that opens and closes the opening of the guide groove 31 is arranged on the inner circumference of the arch 18. The lid sheet 33 is formed of a single piece so as to be inscribed over the entire length of the inner peripheral surface of the arch 18, and is laterally movable in the width direction of the guide groove 31.

As shown in FIG. 7, the lid sheet 33 is formed of a laminated body in which a synthetic resin layer 35 such as vinyl chloride is provided on one surface side of a synthetic resin fiber 34 such as polyester. The resin fibers 34 are arranged so as to face the inside of the guide groove 31, and the slippage of the fibers 34 reduces the resistance generation when the tape A comes into contact.

As shown in FIGS. 3 and 4, the cover sheet 33 is arranged on one side with respect to the guide groove 31, and the guide 36 is fixed to the arch 18 at a plurality of linear portions. Is held so as to be able to move laterally, and lateral movement is given by drive mechanisms 37 and 38 attached to the upper and lower portions of the arch 18.

Since the lid sheet 33 is flexible and easily deformable, as shown in FIG. 2, a hard thin plate 39 is laminated on the inner peripheral surface side in the straight line portion, and the guide 36 is formed as shown in FIG. It has a rectangular block shape and is bolted to the arch 18 so as to project outward in the width direction, and the slit 40 provided so as to open on the inner peripheral surface side of the arch 18 laterally overlaps the lid sheet 33 and the thin plate 39. Holds movably.

As shown in FIGS. 2 and 4, the drive mechanisms 37 and 38 fix the solenoid 41 to the outside of the arch 18, and move the movable iron core 42 of the solenoid 41 and the arch 18 of the lid sheet 33. The portion projecting from is connected by a connecting member 43 that is a combination of levers, links, bolts, nuts, etc., and the lid sheet 33 is moved laterally when the solenoid 41 is turned on and off.

4 and 5 show a state in which the cover sheet 33 is in the closed position, and one side edge of the cover sheet 33 closes a little less than half of the guide groove 31 in the width direction. At this time, the solenoid 41 is de-energized and is closed by the spring incorporated inside.

As described above, when the lid sheet 33 closes a part of the guide groove 31, the resistance generated when the tape A running in the guide groove 31 comes into contact with the lid sheet 33 is reduced, Even a tape A made of a thin film can be loaded in the entire length of the guide groove 31.

Further, FIG. 6 shows a state in which the lid sheet 33 is laterally moved by energization of the solenoid 41, and the lid sheet 33 is moved so as to fully open the opening of the guide groove 31.

As described above, when the lid sheet 33 fully opens the guide groove 31, the tape A can be detached without coming into contact with the lid sheet 33 during the tape tightening process. It is possible to prevent bending and the like.

In the illustrated case, the lid sheet 33 is arranged on one side in the width direction of the guide groove 31, but the lid sheets are arranged laterally movable on both sides of the proposed groove, and both lid sheets are simultaneously opened and closed. You may do it.

The arch of the present invention has the above-described structure, and when the tape A is loaded into the guide groove 31 of the arch 18 after the packing operation, as shown in FIG. 4 and FIG. The lid sheet 33 is in the closed position due to the disconnection of the current, prevents the tape A from jumping out from the guide groove 31, and the tape A is loaded in the entire length of the guide groove 31.

Since the entire length of the lid sheet 33 has a single-piece structure, there is no seam and the tape A can be smoothly guided.

With the tape A loaded in the entire length of the guide groove 31, the solenoid 41 is first energized during the tightening process of the tape A during the packing work, and the lid sheet 33 moves laterally to the open position as shown in FIG. Fully open the guide groove 31.

After this, the tape A is tightened, the tape A is reduced in diameter and separated from the guide groove 31, and the outer periphery of the article to be packed is wound up.

When the tape A is removed from the inside of the guide groove 31, the lid sheet 33 moves laterally outside the opening of the guide groove 31 and fully opens the guide groove 31, so that the tape A is not deformed or bent. No, beautiful packaging is obtained.

After the tape A is tightened, the solenoid 41 is de-energized, and the lid sheet 33 automatically returns to the closed position to prepare for the next tape loading.

[0036]

[Effect of device]

 As described above, according to the present invention, since the lid sheet that opens and closes the tape guide groove of the arch is a single piece along the entire length of the arch, there is no seam over the entire length, and the tape can be smoothly guided. .

Further, the lid sheet is laterally moved so that the tape guide groove can be fully opened, so that the tape that comes out of the guide groove does not come into contact with the lid sheet during the tape tightening process, and thus the tape sheet is thin. In the case of a tape made of film, the tape can be beautifully packed without being deformed, wrinkled, or bent.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of a packing machine using an arch according to the present invention.

FIG. 2 is a perspective view of a lid sheet provided on the arch.

FIG. 3 is a perspective view showing an arch, a lid sheet, and a tape.

FIG. 4 is an enlarged sectional view taken along arrow IV-IV in FIG.

5 is an enlarged cross-sectional view taken along the arrow VV in FIG.

6 is a cross-sectional view showing an open state of the guide groove in FIG.

FIG. 7 is an enlarged sectional view of a lid sheet.

[Explanation of symbols]

 11 table 18 arch 31 tape guide groove 33 lid sheet 37, 38 drive mechanism 41 solenoid

Claims (2)

[Scope of utility model registration request] 1. An arch of a packing machine in which a partially cut-off frame-shaped arch is erected on a table and a tape is loaded in a tape guide groove provided in a length direction of an inner peripheral surface of the arch. In the above, a lid sheet for opening and closing the tape guide groove, which is arranged along the inner circumferential surface of the arch, is formed into one continuous piece over the entire length of the inner circumferential surface of the arch, and this lid sheet is moved in the width direction of the tape guide groove. Arch of a packing machine that opens and closes the tape guide groove. 2. The lid sheet moves in the width direction of the tape guide groove so as to close a part of the width of the tape guide groove in the closed position and open the entire width of the guide groove in the open position. Arch of the packing machine.