JPS6348489Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention is a band storage device that is installed in a packing machine between a reel on which a band is wound in a coil shape and a pair of rollers that feed the band outside the main body of the packing machine or into an arch on the main body. Regarding.

2. Description of the Related Art

FIG. 7 shows an automatic packing machine equipped with an arch for feeding bands onto the main body. In this type of packing machine, the band B is fed into the arch 81 on the main body 80 in order to improve packing efficiency. must be done at high speed. However, it is very difficult to pull out the band B from the heavy reel 18 outside the main body and feed it to the arch 81 at high speed using the feed roller 82 and upper roller 83 provided inside the main body 80. Moreover, packing machines with large arches are required to feed a large amount of bands at extremely high speeds, and it is impossible to pull out bands from the rules and feed them at high speed to the arches using a pair of rollers. . Therefore, in order to solve the above-mentioned problems and to quickly supply bands during high-speed packaging, the band storage device of the packing machine pulls out the packing band wound on the reel and stores it in the storage box in advance. After storing the band B, it is provided to be fed into the arch on the main body of the packing machine by a pair of high-speed rotating rollers, and as shown in FIG. The bottom of the box 10 is fixed to the bottom plate 17 of the packing machine main body, and the swinging plate 15, which is partially inserted into the storage box 10, is supported on the outside of the storage box 10. , a spring 16 with one end fixed to the bottom plate 17 is connected or a weight is attached, and a touch roller 14 which can freely approach and separate from the drive roller 13 is supported at a position closer to the storage box 10 than the bearing part of the swing plate 15. The width of the storage box 10 is formed to be slightly larger than the band width of the band B used to prevent the stored bands B from becoming entangled within the box. Then, the rocking plate 15 swings upward or downward depending on the weight and tension of the band B stored in the storage box 10, whereby the touch roller 14 approaches and separates from the drive roller 13, and the band B is stored. Band B into box 10
Start or stop feeding.

[Problem that the invention attempts to solve]

By the way, the band width of the band used for packaging is changed depending on the type of the item to be packed, etc., so in order to make the above-mentioned conventional device usable with all band widths, the storage box 10 must be adjusted to the maximum band width. It will be shaped according to the width. However, if a band with the minimum band width is fed into the storage box 10 formed to match the maximum band width, the band B will have a shape in which the longitudinal surfaces thereof are stacked vertically, so to speak, in which wave shapes are superimposed almost horizontally. It is not stored in the ideal condition of storage box 1.
0, the upper and lower bands may be inserted incorrectly and twisted and bent, and over a long period of time, this twisting and bending becomes a habit, and in extreme cases, the band B may become entangled and become locked in the storage box 10 or at the discharge port 12. and cannot be fed outside the main body or into the arch on the main body. As a countermeasure to this problem, it is possible to appropriately change the width of the storage box 10 according to the bandwidth used. That is, the storage box 10 is formed of two plates facing each other in the width direction, and the width of the storage box 10 is changed by adjusting the interval between the two plates. In the case of the above method, the width of the rocking plate 15 inserted into the storage box 10 must be formed to match the minimum band width, that is, the width of the storage box that is narrowed to the minimum according to the band width. No. but,
The rocking plate 15 is formed to match the minimum width of the band (storage box) when using a wide band.
It is difficult to support this wide band B horizontally within the storage box 10, and as shown in FIG. This makes it impossible to subsequently feed the band to the storage box 10 and to the arch on the main body. In order to solve the above problem with conventional devices, it is necessary to replace the oscillating plate with a oscillating plate whose width corresponds to the band width of the band to be changed as appropriate, which requires extremely complicated work. Yes, it is uneconomical. The purpose of the present invention is to use a simple structure to twist or lock the band in the storage box by simply changing the width of the storage box depending on the type of band, and to clamp the band between the rocking plate and the inner wall of the storage box. It is an object of the present invention to provide a band storage device that can prevent band storage from occurring and store the band in an ideal horizontal and wavy state.

[Means to solve the problem]

The present invention includes a storage box having a receiving port and a discharge port for packing bands, and a drive roller and a touch roller that are provided in the vicinity of the receiving port so as to be able to slide into contact with each other and feed the band into the storage box. In a band storage device for a packaging machine, the band storage device for a packaging machine is arranged to stop the rotation of a motor that rotates the drive roller or release the sliding contact between the two rollers, depending on the band weight or band tension in the storage box. One of the plates is provided so that the surfaces of both plates can approach and separate from each other at a predetermined distance in parallel to the other, and swing below the bottom edge of the one plate to cover the opening between the bottom edges of both plates. It is characterized by the provision of a freely swinging plate.

[Effect]

The present invention uses the above means to move one plate in parallel to the other plate depending on the band width of the band used, adjust the width of the storage box appropriately according to the band width, and The band fed by the drive roller and the touch roller is received by the rocking plate that covers the bottom of the opening of the storage box, and the bands are stacked vertically in the storage box in the longitudinal direction and stored. A rocking plate swings up and down below the bottom edge of the one plate according to the weight and tension of the band, thereby controlling the feeding of the band into the storage box.

【Example】

Hereinafter, details of the present invention will be explained based on drawings showing embodiments. In Figures 1, 2 and 3, the storage box 2
0 consists of a plate material 21 and a plate material 30. The plate material 20 is composed of a back member 31, a top member 32, a left side member 33, and a right side member 34. It is fixed with screws 39. Further, the upper surface member 32 has elongated holes 3 in the width direction.
7 and 37, and cut out the right side of the upper surface member 32 in the figure to form a discharge port 36 for the band B, and a receiving port 35 for the band B below the right side member 34. The widths of the top member 32, left side member 33, and right side member 34 constituting the plate material 30 are formed to be the maximum width of the band B plus the width of the support rod 22, which will be described later. 1 and 3, reference numeral 21 denotes a plate material having a flat shape, and a notch 27 at the lower right corner of the plate material 21.
form. A square support rod 22 is fixed to the upper end of the plate 21 with countersunk screws 28, 28, and the above-mentioned plate 30 on the upper surface of the support rod 22 is fixed to the upper end of the plate 21.
Female threads 24, 24 are formed at positions corresponding to the elongated holes 37, 37 of the upper surface member 32, and the elongated holes 37, 37
and the female screws 24, 24 are overlapped, and the bolts 38, 38 are inserted into the overlapped portions and screwed together, and the upper surface member 32 of the plate material 30 is assembled in accordance with the band width of the band B to be used.
and the support rod 22 are fixed. In addition, an angle 23 is attached to the lower end of the plate material 21, and this angle 23 is attached to the lower end of the plate material 21.
The long holes 25, 25 bored at both ends of 3 are connected to the support stands 50, 5 of the packaging machine body, which has casters 68 below.
0, and insert the bolts 26, 26 into the overlapped portions and screw them together, and attach the angle 23 to the support base 5 according to the width of the band B.
Fixed at 0.50. Therefore, the surface of the plate 21 is attached parallel to the back member 31 of the plate 30 with a spacing slightly wider than the width of the band used.
The width of the plate 21 and the length of the support rod 22 are both slightly shorter than the width of the plate 30.
When installing, the right edge of this board 21 and the board 3
An introduction part 72 having a gap equal to or larger than the thickness of the band B is formed between the right side member 34 of the band B and the right side member 34 of the band B. As described above, the storage box 20 is composed of the plate material 21 and the plate material 30.
Since the storage box 20 does not have a bottom surface, an opening surface 29 is formed below the storage box 20. A swing plate 40 is attached below the storage box 20 to cover the opening surface 29. This rocking plate 40 is formed of a base 41 made of heavy metal and a rocking part 42 having an L-shaped cross section, and has a width that allows at least the widest band to be held horizontally and placed thereon. For example, since bands commonly used at present have a width of 9 mm to 19 mm, it is sufficient for the swing plate to have a width of about 22 mm. The swing plate 40 is attached by inserting the support shaft 43 into the through holes 70 and 71 provided below the base member 41 and the back surface member 31 of the plate material 30, respectively, and inserting the tip of the support shaft 43 into the hole provided in the beam material 53. At that time, the back member 31 of the plate member 30 and the side surface of the rocking plate 40 are attached with a small gap between them. A suitable number of adjustment holes 45 having female threads are provided on the side surface of the base 41 of the rocking plate 40, and weights 44 having male threads at the tips are screwed into appropriate positions of the adjustment holes 45, and on the upper surface of the base 41, The support shaft 4
An L-shaped pin 4 is located closer to the adjustment hole 45 than 3.
6, and insert the tip of this pin 46 into a notch hole 49 formed in the back member 31 of the plate material 30, as shown in FIG. The lead piece 48 is brought into contact with the lower surface of the lead piece 48 which is urged downwardly by the limit switch 47. In FIGS. 3 and 4, reference numeral 59 denotes a drive roller. This drive roller 59 is formed to have a thickness greater than the maximum width of the band, and a flange with a diameter larger than the diameter of the drive roller 59 is provided on the side surface of the drive roller 59. Attach the shaped disc member 69. Further, the shaft 61 of the drive roller 59 is fitted onto a pulley 62 via a bearing in a bearing case 64 provided on the back side of the back member 31 of the plate material 30, and this pulley 62 is connected to the V-belt 65.
is connected to a motor (not shown). 60 is a touch roller, and as shown in FIGS. 4 and 5, an eccentric shaft 63 of this touch roller 60 protrudes outside the back member 31 of the plate material 30 via a bearing in a bearing case 64, and has an L-shape at its tip. One end of the shaped lever 56 is fixed, and the other end of the lever 56 is fixed to the back member 31 of the plate material 30.
It is inserted through the notch hole 66 provided in the plate material 21 so as to face the notch part 27 of the plate material 21. Further, a fixing rod 57 is provided protruding from the upper side of the bearing case 64, and this fixing rod 57
One end of the spring 58 is connected to an appropriate location of an appropriate number of grooves cut in the grooves, and the other end of the spring 58 is connected to the lever 56, thereby urging the eccentric shaft 63 of the touch roller 60 upwardly, thereby forcing the touch roller 60 upward. 60 is brought into pressure contact with the drive roller 59. In Fig. 5, 47 is a limit switch;
This limit switch 47 biases the reed piece 48 protruding from below downward with a constant force by an elastic member (not shown), detects the upward movement of the reed piece 48 against this bias, and turns on. This signal is transmitted to a motor (not shown) connected to the pulley 62, and the operation of the motor is stopped. Further, in FIG. 3, 54 is a reel for winding the band to be fed into the storage box 20, and is provided so that the band is parallel to the width direction of the body, and 55 is a guide roller located below the reel 54. It is attached to the brake lever so as to rotate on the same plane as the rollers 59, 60. That is, as shown in FIG. 7, in the conventional packaging machine, the rail 18 is installed so that the band fed out is perpendicular to the width direction of the main body, and the guide roller 85 is installed before the band reaches the storage box 10. , guide roller 86,
Although the light is guided to the rollers 13 and 14 via the shutter 84, in the present invention, by configuring it as described above, it is possible to omit the shutter 84 and the guide roller 86. Next, the operation of the above embodiment of the present invention will be described. When changing the band used to a band of a different width, use the plate material 2 shown in Figs. 1, 2, and 3.
Bolts 3 for fixing the support rod 22 on the upper surface of 1 through long holes 37, 37 provided in the upper surface member of the plate material 30.
8, 38, and then attach the lower surface of the plate 21 to the support stands 50, 5 through the long holes 25, 25 of the angle 23.
Loosen the bolts 26, 26 that fix it to the plate material 21.
is moved in parallel within the range of the elongated holes 37, 37 and the elongated holes 25, 25, and the back member 3 of the plate material 21 and the plate material 30 is
After adjusting the distance from 1 to the width of the band, tighten bolt 3.
8, 38, 26, 26, the upper and lower parts of the plate 21 are connected to the upper surface member 32 and the support stand 5 of the plate 30, respectively.
It may be fixed at 0.50. At the time of packing, as shown in FIGS. 4 and 5, the operator pulls out the band B from the reel 54 equipped with the band coil corresponding to the adjusted width between the two plate materials, and removes the band B wound on the reel 54.
through the guide roller 55 and its tip into the receiving port 35.
and sandwiched between the drive roller 59 and touch roller 60. That is, the notch 27 of the plate material 21
The touch roller 60 is separated from the drive roller 59 against the bias of the spring 58 by inserting a hand and pushing down the tip of the lever 56 protruding from the notch hole 66 provided in the back member 31 of the plate material 30. After inserting the tip of the band B between both rollers, the lever 56 is released, and the tip of the band B is held between the two rollers. Note that the clamping pressure of the band B by the drive roller 59 and the touch roller 60 is the same as that of the fixed rod 5.
Select the appropriate location from the grooves carved in 7 and insert the spring 5.
This is done by connecting 8. Next, the operator pulls out the band B further and inserts it into the storage box 2 from the introduction part 72 formed on the right side of the plate material 21.
0 into the storage box 2 and guide it to the discharge port 36.
Through a band tightening mechanism (not shown) above 0,
The tip of the band B is held between a pair of feed rollers that feed the band into the arch (FIG. 6B). This completes the setting of band B, and as explained below with reference to FIG. 6A, by turning on the normal rotation switch,
Drive roller 59 and touch roller 60 feed band B into storage box 20 by rotation of a motor connected to pulley 62 via V-belt 65 . At this time, the guide roller 55 at the tip of the brake lever below the reel 54 rotates on the same plane as the rollers 59 and 60, and the band B is rotated by the disk member 69 attached to the side surface of the drive roller 59. 5
9, 60 and is fed into the storage box 20. Thereafter, when the band B in the storage box 20 reaches a predetermined amount (at least the same amount as the amount of bands fed into the arch), the swinging part 42 of the swinging plate 40 moves around the support shaft 43 to move the band B into the storage box 20. The weight and tension of the band B in the band 20 push it downward, and the base 41 of the swing plate 40 swings upward in the opposite direction. At the same time, the pin 46 protruding from the upper surface of the base 41 also moves upward, pushing upward the lead piece 48 of the limit switch 47 that the tip of the pin 46 comes into contact with. At the same time, the limit switch 47 detects this,
OFF, this signal cuts off the power to the motor, stops rotation of the motor, and stops feeding band B into the storage box 20. At this time band B
Since the storage box 20 has a width adjusted according to the width of the band B, the storage box 20 is constructed by overlapping the longitudinal direction of the band vertically in an ideal substantially horizontal and wavy state.
Also, since the rocking plate 40 has a width that allows the band to be placed horizontally, the band B falls from the rocking part 42 and touches the side surface of the rocking part 42 of the rocking plate 40 and the plate material. The band B is held between the inner wall of the storage box 21 and is not locked in the storage box 20. Note that when the band B is stored in the storage box 20 and the swinging portion 42 of the swinging plate 40 swings downward, a portion of the band B may be exposed to the space below the lower edge of the plate material 21. However, the tip of the band B is held between a pair of rollers that supply the band B to the arch on the main body, and the band B in the storage box 20 is regulated by the gap formed by the surfaces of both plate materials 21 and 30. Since it is stored in an ideal horizontal and wavy state, it does not jump out of the storage box 20 from the lower edge of the plate 21. Thereafter, when the band B is pulled out from the discharge port 36 and fed into the arch by a pair of feed rollers, the amount of bands in the storage box 20 decreases and becomes lighter. swings upward, while the base 41 swings downward, the pin 46 moves, and the lead piece 48 of the limit switch 47 also moves downward (FIG. 6B). At the same time, the limit switch 47 is turned on and the motor is energized.
As the motor rotates, the drive roller 59 and the touch roller 60 rotate while sandwiching the band B, and feed the band B into the storage box 20 again. The above-described feeding of the band into the storage box and its stopping are repeated in response to the feeding of the band into the arch. When the number of bands in the storage box 20 is small, the swinging part 42 of the swinging plate 40 tries to swing upwards around the support shaft 43 by the weight 44 attached to the base 41, but Since the plate 40 has a width to horizontally lock and place at least the widest band in the width direction, the swinging part 42 generally
3) The opening surface 29 of the storage box 20 comes into contact with the lower surface.
to cover. The amount of band stored in the storage box 20 is determined by screwing the weights 44 into appropriate positions of the adjustment holes 45 formed in the base 41 of the rocking plate 40, taking into consideration the width, thickness, and tension of the band. It can be easily adjusted by attaching it. At this time, it is desirable to adjust the weights 44 so that the amount of bands stored in the storage box 20 is equal to or larger than the inside size of the arch in one packing process. Note that this embodiment has a structure in which a limit switch detects the swinging of the swinging plate, cuts off the power to the motor, and controls the feeding of the band to the storage box.
Without using a limit switch, for example, the driving roller 5 can be moved by swinging the swinging plate 40 as shown in FIG.
9 and the touch roller 60, or the limit switch and the pressure release mechanism for both rollers may be used together. Further, in this embodiment, the amount of bands stored in the storage box is adjusted by screwing weights into adjustment holes formed in an appropriate number on the rocking plate.
A configuration in which the swinging part 42 of the swinging plate 40 is urged upward by, for example, a spring without using a weight, and the swinging part 42 swings downward as the amount of bands in the storage box increases. You can also use it as

[Effects of the invention]

As described above, the present invention provides a storage box having a receiving port and a discharging port for packing bands, and a drive roller that is provided in the vicinity of the receiving port so as to be able to freely come into sliding contact with each other and feeds the band into the storage box. and a band storage in a packaging machine, which is equipped with a touch roller and is arranged to stop the rotation of a motor that rotates the drive roller or release the sliding contact between the two rollers depending on the weight of the band in the storage box or the tension of the band. In the apparatus, one of the two plates is provided such that the surfaces of the two plates are parallel to each other at a predetermined distance and can be freely approached and separated from each other, and the bottom of the one plate covers the opening surface between the bottom edges of the two plates. A rocking plate that can swing freely under the edge is provided, so one plate can be moved parallel to the other plate to adjust the width of the band according to the width of the band used in the packaging machine, without having to replace the rocking plate. By simply adjusting the width of the storage box according to the width, it is possible to store the storage box in an ideal horizontal and wave-shaped state regardless of the band width without twisting, making it extremely practical. .

[Brief explanation of drawings]

1 to 6 A and B are views showing an embodiment of the present invention, in which FIG. 1 is an exploded perspective view, FIG. 2 is a partial sectional view, FIG. 3 is an overall perspective view, and FIGS. FIG. 5 is an enlarged view of the main part, and FIGS. 6A and 6B are diagrams showing the operation. Further, FIG. 7 shows a conventional band storage device. 20; Storage box, 21; Plate material, 22; Support rod, 2
3; Angle, 24, 24; Female thread, 25, 2
5; Long hole, 26, 26; Bolt, 27; Notch,
28; flat head screw, 29; opening surface, 30; plate material, 3
1; Back member, 32; Top member, 33; Left side member, 34; Right side member, 35; Intake port, 36; Outlet port, 37, 37; Long hole, 38, 38; Bolt,
39; flat head screw, 40; rocking plate, 41; base, 4
2; Swinging part, 43; Support shaft, 44; Weight, 4
5; Adjustment hole, 46; Pin, 47; Limit switch, 48; Lead piece, 49; Notch hole, 50,5
0; Support stand, 51, 51; Strut, 52, 53; Beam material, 54; Reel, 55; Guide roller, 56; Lever, 57; Fixed rod, 58; Spring, 59; Drive roller, 60; Tatsuchi roller, 61 ; shaft, 62; pulley, 63; eccentric shaft, 64; bearing case,
65; V-belt, 66; cutout hole, 67; female thread,
68; caster, 69; disc member, 70, 71;
Through hole, 72; introduction part, 80; packing machine body, 8
1; Arch; 82; Feed roller; 83; Upper roller.

Claims (1)

[Scope of Claim for Utility Model Registration] A storage box having a receiving port and a discharging port for packing bands, a drive roller that is provided in the vicinity of the receiving port so as to be able to slide into contact with each other and feeds the band into the storage box; A band storage device in a packaging machine, which is equipped with a touch roller and is configured to stop the rotation of the motor that rotates the drive roller or release the sliding contact between the two rollers depending on the weight of the band in the storage box or the tension of the band. , one of the two plates is provided so that the surfaces of both plates can approach and separate from each other in parallel with a predetermined interval, and a rocking plate is provided to cover the opening between the bottom edges of the two plates, A band storage device for a packaging machine, characterized in that the swing plate is swingably provided below the bottom edge of the one plate.