JPS6333765Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an automatic packaging machine, and more particularly, to a packaging machine having a band guide arch rotation mechanism suitable for installing on a conveyor line and packaging long items and other items.

[Conventional technology and problems]

As shown in Figure 7, in the conventional packaging line for long items, a downward U-shaped band guide arch 1 must be installed in a direction perpendicular to the conveyor line 2. Because the loading direction of the packed items W onto the conveyor line and the loading direction after packaging are different, and because the side plate 3 in the longitudinal direction of the packing machine body is in contact with the lower part of the conveyor line, opening and closing this side plate is necessary to remove the various mechanisms inside the main body. It is difficult to perform adjustment and inspection work, and since both sides of the conveyor line are blocked by band guide arches, it is difficult to take out the items to be packed, and the longitudinal direction of the items to be packed is the same as the longitudinal direction of the conveyor line. Because it is conveyed in different directions, a long line and a large space are required, resulting in extremely poor work efficiency.

Therefore, the applicant has already eliminated these drawbacks in Utility Application No. 55-65006, and has proposed a method that straddles the packaging machine body, which connects the packaging band so that it can be inserted into one end of the bandway formed on the top surface of the packaging machine body. A lower end of one of the provided band guide arches is connected to a drive mechanism having a forward and reverse rotation mechanism via a speed reducer so that the band guide arch is rotatable in its longitudinal direction, and the packing machine The other lower end of the band guide arch is provided on the other end of the bandway on the upper surface of the main body so as to be able to come into contact with and release from the band guide arch, so that the band guide arch can be freely moved in and out of the packaging machine main body, and the whole body is rotatable as a unit. We have proposed a packaging machine with a band guide arch, which has the great effect of making the upper surface of the packaging machine body a space, but the circular trajectory drawn by the tip of the rotating band guide arch is
During packing, the band passes through the inside of the maximum space consisting of the position of the band guide arch and the work table. This had the disadvantage that the tip of the guide arch collided with the top surface of the object to be packed, making it impossible to pack it (see FIG. 5 below). Further, the same applies when the transported object to be packaged shifts from the upper side of the main body control section to the left or right and stops. Increasing the arch size is one solution, but this also increases the length of the bandway and therefore makes the main body elongated.

〔the purpose〕

The present invention divides the rotating band guide arch and connects them with hinges, etc., and makes this connecting part bendable.The top surface of the main body can be made into a fully open space. It is an object of the present invention to make it possible to pack even large objects to be packed, and to make full use of the rotating band guide arch.

〔composition〕

In the present invention, in order to achieve the above object, one end of the bandway formed on the top surface of the packing machine body,
The lower end of one of the band guide arches, which is installed over the main body of the packing machine through which the packing band can be inserted, is connected to a drive mechanism having a forward/reverse rotation mechanism via a speed reducer, and the band A guide arch is provided to be rotatable in its longitudinal direction, and a lower end of the other band guide arch is provided to be able to come into contact with and separate from the other end of the bandway on the upper surface of the packing machine main body, and the band guide arch is packed. It is configured to be able to freely appear and retract upwardly and downwardly with respect to the upper surface of the machine body, and an end side connected to the upper side of the band guide arch is formed into an arc shape, and the starting end of the arc and the upper side of the band guide arch are formed. An arbitrary position between the terminal ends is separated, and one arch of the two arches separated at the parting point, that is, the arch on the lower end side of one of the band guide arches, is separated from the other arch, that is, the band guide arch. The other lower end side arch is rotatably attached to the outside of the center of the band guide arch via a spring, and a roller is rotatably supported at the tip of the arcuate arch.

[Effect]

Therefore, even if the band guide arch rotates in its longitudinal direction and moves upward and downward relative to the top surface of the packing machine body, and the tip of the band guide arch collides with the top surface of the object to be packed, the rollers will not rotate. While rolling around the corner of the object to be packed, one of the two divided arches rotates the other arch outward from the center of the band guide arch, so that the band guide arch is located at approximately the center. The bending impact is alleviated, and after the roller provided at the tip rolls over the object to be packed, it is removed from the object to be packed, and the band guide arch is arranged around the object to be packed on the main body. The other lower end of the band guide arch is brought into contact with the other end of the bandway on the upper surface of the packing machine main body, thereby forming a series of band passage paths.

〔Example〕

The details of the present invention will be explained below based on the illustrated embodiment. FIGS. 1 and 2 show a main body 10 housing a control section C that performs various mechanisms such as band supply, tightening, cutting, and gluing necessary for packaging. A forward/reverse arch motor 12 is fixed to the lower surface of the support frame 11 at one end. A pulley 14 is provided on the shaft of this arch motor 12 via a torque limiter 13, and this pulley 14 and a reducer 1 fixed to the upper surface of the support frame 11
A V-belt 18 is stretched between the pulleys 17 provided on the input shaft 16 of No. 5 via an electromagnetic brake 28, so that the arch motor 12 and the speed reducer 15 are interlocked. On the other hand, a gear 20 is provided at one end of an output shaft 19 that is orthogonal to the input shaft 16 of the reducer 15 and protrudes from both ends of the reducer 15, and limit cams 21, 22, and 23 are arranged in parallel at the other end. A limit switch (not shown) can be freely inserted into the convex portion. Further, the gear 20 and 1:2
A shaft 25 with a gear 24 wedged thereon is mounted on a support base 26 extending from the side of the main body.
Both gears 20 and 24 are provided so as to mesh with each other.

Reference numeral 30 denotes a band guide arch independent of the main body, which has a generally downward C-shape as a whole and has a generally downward C-shaped cross section in a known configuration, and a known band guide flap may be attached to the upper straight portion. It is often constructed so as to face directly above the bandway 29 below the upper surface of the main body and the control section C located at the center of this bandway 29. The left curved portion of the band guide arch 30 in FIG. It is rotatably provided. That is, the arch holder 31 is constructed by fixing one side of the plate pieces 32, 32 whose lower end circular portions are fixed to the shaft 25 between the bearing 27 and the gear 24 to the outer plate of the left curved portion of the band guide arch.

Furthermore, this band guide arch 30 is divided at the right end of the upper straight part, and the divided left and right arches 30 are
a, 30b are connected by a hinge 50 provided on the upper surface of the divided portion as shown in FIG. The arcuate right arch 30b is urged to be connected to the left arch 30a. The hinge 50 only needs to have a certain level of strength, and its structure may be any suitable structure. An insertion rod 53 is provided on the upper surface of the arch 30b, and the insertion rod 53 is fitted into the receiving portion, and a pin 55 is inserted into a hole 54 provided through the fitting portion of both arches to connect both arches. . Further, as shown in FIG. 4, a rotatable roller 60 made of a material such as rubber is provided at the tip of the right arch 30b. That is, bearing plates 61 are attached to both sides of the tip of the right arch 30b, and the roller 60 is supported by the bearing plates 61. The position of the hinge 50, that is, the part where the band guide arch is divided, is not limited to that shown in the figure.
Any position may be used as long as it is between the starting end of the circular arc of 0b and the straight part of the upper side.

38 is a feed roller, and a feed motor 39
rotates to supply and pull back the band, 40
The main shaft 41 is rotated by a control motor as appropriate via the speed reduction mechanism 43, and at the same time, each operation of gripping, tightening, gluing, and cutting of the band tip is performed through a cam mechanism (not shown), and is fixed to the output end of the speed reduction mechanism 43. The limit cam 42 is rotated to control the drive of the feed motor 39 and control motor 40.

Next, to explain the operation of the above embodiment, in FIG. 1, the band guide arch 30 is currently stopped and waiting at the Y position, and the conveyor line 45 carries the band guide arch 30 to its full inner diameter W to be packed. When it is conveyed from the right to the left and reaches above the control section in the center of the main body, a phototube (not shown) detects this, and the operation of the conveyor line 45 is stopped. At the same time, the arch motor 12 is started and the V-belt 18 is started. A shaft 2 to which the lower end of an arch holder 31 is fixed, which meshes with a gear 20 provided on the shaft 19 of the reducer 15 through the shaft 2
5 rotates the gear 24 of the arch holder 3.
1, that is, the band guide arch 30, is rotated clockwise in FIG. 1 to lower the tip of the right arch 30b. At this time, the roller 60 at the tip of the right arch 30b comes into contact with the upper right part of the item W to be packed, but since the band guide arch 30 continues to descend, the coil spring 51 connecting the left and right arches 30a and 30b via the dividing part The arch 30 as shown in FIG.
b is bent outward, and then the roller 60 rolls and comes into contact with the upper end of the right side surface of the object to be packed W, and finally,
It passes through the original rotation locus and descends to the right end Z position of the bandway 29, forming a series of band passing paths.
During this time, the limit cam 21 provided on the shaft of the reducer 15
23 are also rotating, and therefore the convex portion of the limit cam 21 operates a limit switch (not shown), which operates the electromagnetic brake 28 to stop the rotation of the speed reducer 15 and the arch motor 12. Further, since the torque limiter 13 slips at the Z position, the right end of the arch is prevented from being pressed further downward.
Further, the signal from the limit switch operated by the limit cam 21 simultaneously starts the feed motor 39, and the feed roller 38 feeds the packaging band from a band reel (not shown) into the band guide arch 30, so that the tip of the band is connected to the control part C as is known in the art. When the belt tip gripping mechanism is reached and the band is placed in a loop around the object to be packed, the band tip actuates a limit switch (not shown) and the feed motor 39 is stopped. The control motor 4 is controlled by the signal from this limit switch.
0 is driven, the main shaft 41 rotates in a known manner and grips the tip of the band. Next, the main shaft 41
A limit switch is operated by a limit cam 42 provided in the band, and this signal drives the feed motor 39 to pull back the band and tighten it.At the same time, the arch motor 12 starts reverse rotation and the band guide arch 3
Rotate 0 from Z→Y→X position.

It goes without saying that when the band guide arch 30 moves from the Z to Y position, the right arch 30b performs the reverse operation when moving from the Y to Z position. Further, at the X position, the electromagnetic brake 28 is activated by the limit cam 22 and the limit switch 36, and the arch motor 12 is stopped. The known steps of bonding and cutting the band to the object to be packaged proceed and end during this period. The end of packing is detected by the limit cam 42 of the speed reducer 43, and the conveyor line is thereby driven to move the object to be packed out of the band guide arch. Items to be packed W
When the band guide arch 30 moves out of the band guide arch 30, the phototube that detects this drives the arch motor 12 again, the band guide arch 30 moves from the X position to the Y position, and the limit cam 23 of the reducer 15 operates the limit switch 37. Activating the electromagnetic brake 28 and stopping the arch motor 12, the arch 3
0 is stopped at the Y position and is on standby. Below, the above-mentioned actions are repeated as appropriate.

In addition, when banding a long object to be packed multiple times, the band guide arch 30 is moved from the Y position to the Z position and the lower end of the right arch 30b is attached to the bandway on the top surface of the packing machine main body. Once the band is brought into contact with one end of the band 29 and the part is communicated, the object to be packed can be moved longitudinally and banded any number of times without moving the band guide arch.

The torque limiter 13 is an auxiliary means for preventing accidents when the rotation of the band guide arch is stopped due to some interference, and electrical control is sufficient to stop the rotation of the band guide arch. It is. Furthermore, if the gears 20 and 24 are made into pulleys and connected by a V-belt or the like, the same effect as a torque limiter can be obtained. It is also possible to feed the packing band to the front of the lower left end of the band guide arch by driving the feed roller 38 for a certain period of time with a timer at the same time as the above-mentioned packing is completed. Furthermore, it goes without saying that the initial position of the band guide arch is not limited to the Y position. In other words, by interlocking with the conveyor line, the rotation width of the band guide arch can be changed to Y.
~Z position only. Further, it is also possible to perform various operations such as rotation of the band guide arch manually using a button switch or the like.

FIG. 6 shows another embodiment of the present invention.
Torque limiter 13, limit cam 21-23
And the mounting position of the limit switches that operate in conjunction with these limit cams 21 to 23 has been changed,
The torque limiter 13 is provided on the shaft 25 to which the arch holder 31 is fixed via a pulley 65.
Further, the limit cams 21 to 23 are also fixed to the shaft 25, and the limit switches operating in conjunction with the limit cams 21 to 23 are of course mounted at pushable positions near the limit cams 21 to 23. 66 is a V-belt, which includes a pulley 67 provided on the output shaft of the reducer 15 and a pulley 6 provided on the shaft 25.
It will be stretched between 5. According to the configuration of this embodiment,
Limit cams 21 to 23 and torque limiter 1
3 is attached to a shaft 25 to which the band guide arch 30 is fixed, so that even if the torque limiter 13 slips, the limit cam that detects the rotation of the band guide arch 30 will not be distorted, and the rotation of the band guide arch 30 will be prevented. is approximately 180 degrees, and therefore, adjusting the operating position, that is, the mounting position, is much easier than installing the limit cam on the output shaft of the reducer 15.

〔effect〕

The present invention is designed to correct the lower end of one of the band guide arches, which are connected to the bandway formed on the upper surface of the packing machine main body as described above, and is connected to the packing machine so that the packing band can be inserted therethrough. The band guide arch is connected to a drive mechanism having a reverse rotation mechanism via a speed reducer so as to be rotatable in its longitudinal direction, and the band guide arch is provided at the other end of the bandway on the upper surface of the packaging machine main body. The other lower end of the band guide arch is provided so as to be able to come into contact with and detach from it, so that the band guide arch can move in and out of the packaging machine main body, and the end side connected to the upper side of the band guide arch is formed into an arc shape. , dividing the starting end of the circular arc and the upper end of the arch, and connecting the lower end of one of the band guide arches separated at the dividing point to the other lower end of the band guide arch; Since the side arch is rotatably attached to the outside of the center of the arch via a spring, and a roller is rotatably supported at the tip of the arc-shaped arch, the upper surface of the main body can be turned into a fully open space by rotating the arch. With its compact structure, it is possible to pack items that are large enough to fit inside the arch, eliminating the drawbacks of conventional arch-rotating packaging machines, especially for conveyor lines. The present invention has excellent practical and economical effects, such as being able to provide an extremely effective packaging machine at a low cost that has good work efficiency for packaging long items when installed in a warehouse.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a front view, Fig. 2 is a side view, Fig. 3 is an enlarged view of the arch dividing section, and Fig. 4 is an enlarged partial sectional view of the roller section.
Figure 5 is a front view schematically showing when the arch is in operation;
The figure is a schematic diagram showing another embodiment. FIG. 7 is a schematic diagram of a conventional example. 10... Main body, 11... Support frame, 12... Arch motor, 13... Torque limiter, 14...
...pulley, 15...reducer, 16...input shaft,
17...pulley, 18...V belt, 19...
Output shaft, 20... Gear, 21, 22, 23... Limit cam, 24... Gear, 25... Shaft, 26...
...Support stand, 27...Bearing, 28...Electromagnetic brake, 29...Bandway, 30...Band guide arch, 30a...Left arch, 30b...Right arch, 31...Arch holder, 32...Plate piece, 3
6, 37...Limit switch, 38...Feed roller, 39...Feed motor, 40...
...Control motor, 41...Main shaft, 42...
... Limit cam, 43 ... Reduction mechanism, 45 ... Conveyor line, 50 ... Hinge, 51 ... Coil spring, 52 ... Receiving section, 53 ... Insertion rod, 54 ... Hole, 55 ... Pin, 60 ... ...Roller, 61...
Bearing plate, 65, 67...Pulley, 66...V belt.

Claims (1)

[Scope of utility model registration request] A drive having a forward and reverse rotation mechanism drives one lower end of a band guide arch installed over the packaging machine body, which is connected to one end of a bandway formed on the top surface of the packaging machine body so that a packaging band can be inserted therethrough. The band guide arch is connected to a mechanism via a speed reducer so as to be rotatable in its longitudinal direction, and the other lower end of the band guide arch is brought into contact with the other end of the bandway on the upper surface of the packaging machine main body. The band guide arch is provided so as to be removable and removable, and the band guide arch is configured to be able to protrude and retract from the upper surface of the packaging machine main body. and the terminal end of the upper side of the band guide arch, and with respect to the arch on the lower end side of one of the band guide arches separated at the dividing point, the arch on the lower end side of the other band guide arch A packaging machine characterized in that an arch is rotatably mounted outside the center of a band guide arch via a spring, and a roller is rotatably supported at the tip of the arcuate arch.