JPH0472110A - Centering mechanism of packer for cylindrical article with center hole and divider at the same interval with - Google Patents

Abstract

PURPOSE:To precisely detect the top of an article to be packed having even a different diameter and automatically position the center hole of the article between slide arches to pack it, by providing a controller for raising or lowering more a preset distance-lifter previously decided in accordance with the transferred distance detected by a detector. CONSTITUTION:When a cylindrical article W to be packed is transferred on a lifter 30 at the lower limit position of a centering device and the lifter 30 is raised at a constant speed, a detector 51 of transferred distance starts counting the transferred distance from the lower limit position of the lifter 30. When the top of the article W reaches the detector for the top position equipped at the machine frame 1, the detector 51 of the transferred distance detects the transfer pulse number from the lower limit position to the detector 60 of the top position. Then the controlling mechanism drives a lifting mechanism by a preset pulse number previously decided in accordance with the transfer pulse number to raise or lower the lifter 30 and stop it. And then the center hole WC of the article W is fixed at a certain position of slide arches 20, 21.

Description

[Detailed description of the invention] [Industrial application field] The present invention provides a packing machine including a slide arch that can be freely inserted into and removed from a core hole of a cylindrical object to be packed having a core hole supported at a fixed position, in which the slide arch moves back and forth to a fixed position. A centering mechanism that automatically positions the core hole of the object to be packed, and a cylindrical object that has a core hole and an arbitrary number of bands placed at equal intervals over the core hole and the outer circumference of the object. The present invention relates to a device for equally spaced indexing of the outer periphery of objects to be packed in an apparatus. [Conventional technology]

Regarding a centering mechanism in a conventional packaging device for cylindrical objects having a core hole, Japanese Patent Publication No. 62-29289 of the present applicant
As shown in the publication, we have developed a very effective device that can automatically position the core hole of a cylindrical object to be packed at a fixed position on a slide arch. That is, when a cylindrical object to be packed is carried onto the lifter, the object to be packed raises the lower end of a diameter detection lever that is rotatably provided in the vertical direction above the machine frame of the packing machine. Then, since the swinging rod provided to interlock with the diameter detection lever is attached to the support plate with pivot support at 2:1 points of the entire length, one long end of the swinging rod is attached to the supporting plate. The diameter detection lever rotates by the same amount as the rising distance of the lower end, and the other end of the short side of the swinging rod rotates half the distance of the one end of the long side, and the swinging rod is attached to the swinging stick. A reverse rotation prevention mechanism is used to maintain this position. Next, when the lifter is raised by the elevating drive mechanism, the position detection means provided on the correction rod provided at the center of the lifter also rises together with the lifter, and when the position detection means contacts the other end of the short side of the swing rod, this signal is activated. When the elevating drive mechanism stops, the lifting of the lifter also stops, and the core hole of the object to be packed is fixed at a fixed advance/retreat position of the slide arch. Moreover, the correction rod is set to its original position based on the position of the core hole of the longest diameter that can be packed on the object to be packed, and when the object to be packed has a short diameter, the outer circumference of the object to be packed is smaller than the detected diameter. Since it is lowered from above the lifter that supports the longitudinal outer periphery of the object to be packed at an appropriate interval, the configuration is such that the upward distance is added and corrected by this lowered distance. In addition, in a conventional equally spaced indexing device for a packaging device for cylindrical objects having a core hole, Japanese Patent Publication No. 62
As shown in Japanese Patent No. 29290, a packaging device configured similarly to the centering mechanism described above is provided with two lifter rollers which are rotatably mounted on the lifter by a motor and are provided parallel to each other with an appropriate interval between them, and the diameter detection mechanism is A swinging rod that is linked to the rotation of the lever is provided, and a reverse rotation prevention mechanism is provided on the swinging rod, and the shaft of the adjustment type means that controls the rotation of the motor that rotationally drives the two lifter rollers is rotated. It is configured to be linked to the moving rod.

[The problem that the invention tries to solve! ai】

In the centering mechanism of a conventional packing machine for cylindrical objects having a core hole, when the cylindrical object to be packed is rotated onto a lifter, the lower end of the diameter detection lever is rotated. In order to push the object upward along the outer peripheral surface of the object, the lower end of the diameter detection lever must be located above the center position of the object before the object is brought in. Therefore, there is a problem in that the maximum and minimum sizes of the packaged object whose diameter can be detected are limited to a narrow range. In other words, the height to the lower end of the diameter detection lever before the object is brought in is the minimum diameter of the object whose diameter can be detected, and the maximum diameter is determined by the height of the object when its center position is below the lower end of the diameter detection lever. Therefore, there was a problem in that the diameter was limited to twice the minimum diameter or less. Furthermore, because the lower end of the diameter detection lever moves upward along the outer circumferential surface of the rotating object, if the unloading speed of the object to be packed is too fast, bending load will be applied to the diameter detection bar. When the lower end of the diameter detection lever reaches the top of the cylindrical object due to the inertia of the rising speed of the diameter detection lever (it does not stop, it bounces up and the diameter of the object to be packed cannot be detected accurately). Therefore, there was a problem in that the loading speed had to be slowed down.Furthermore, in the conventional mechanism, the outer periphery of the object to be packed was set at an appropriate distance from the outer periphery of the object in the longitudinal direction depending on the diameter of the object to be packed. Although it was an effective device that could automatically compensate for the drop from the lifter supported through the LcC with a relatively simple mechanism, it still required a reversal prevention mechanism installed on the swinging rod due to the overall LcC.
Structural complexity such as the provision of correction rods was an unavoidable problem. In addition, with conventional equal-space indexing devices, the maximum and minimum diameters of objects to be packaged that can be detected are limited to a narrow range, as well as the centering mechanism described above. If the speed is too high, the diameter detection bar will spring up and the diameter of the packaged object will not be accurately detected, and the information will not be accurately transmitted to the axis of the rotation adjustment means linked to the swinging rod, and There was a problem with the indexing, which was slightly inaccurate. The present invention has been developed to solve the above-mentioned conventional problems. Even at high speeds, the apex of the object to be packed can be detected accurately, the core hole of the object to be packed can be automatically positioned between the slide arches, and the center hole of the object to be packed can be accurately detected depending on the size of the object to be packed. It is an object of the present invention to provide a centering mechanism and an equally spaced indexing device for a packaging device that can be packed at evenly spaced positions on the outer periphery and has a simple structure. Means for solving the problem of cram] In order to achieve the above object, the centering mechanism in the packaging apparatus for cylindrical objects having a core hole WC of the present invention includes a machine frame 1 and a mechanism that can be freely raised and lowered within the machine frame 1. The packing machine main body 10 installed in
and communicates with the bandway 14 in the packing machine main body 10,
In addition, a slide arch 20 provided so as to be able to move forward and backward to a certain extent,
21, a lifter 30 provided below the slide arches 20, 21 so as to be able to be raised and lowered by a lifting drive mechanism, and the lifter 30 moves the outer periphery of the cylindrical article W in the longitudinal direction having a core hole at an appropriate interval. In the packaging apparatus installed to support the machine frame L, a vertex detection means 60 is provided on the machine frame l to detect the vertex of the lifted object W placed on the lifter 30 and generate a signal, and the lifter 30 A moving distance detecting means 51 is provided for detecting a moving distance ML of the lifter 30 that has risen from the lower limit position until the apex of the object W to be packed is detected by the apex detecting means 60, and the moving distance detecting means 51
The present invention is characterized in that a control device is provided for further raising or lowering the set distance SL lifter 30, which is set in advance in accordance with the moving distance lll1ML detected in . Further, the lifter 30 is provided so as to be able to rise and fall at a constant speed V, and a pulse generating means 52 is provided which generates a constant pulse as the lifter 30 rises, from the lower limit position of the lifter 30 to the point detected by the apex detection means 60. A moving distance detecting means 51 configured to count the number of moving pulses MP generated by the pulse generating means 52 is provided in between, and the number of moving pulses MP counted by the moving distance detecting means 51 is determined in advance. It is also possible to provide a control device that further raises or lowers the lifter 30 by a set number of pulses 5P (=set distance). Further, the set pressure 11 [sL is the moving distance detecting means 5
1 is detected. In addition, in the equally spaced indexing device for the packaging device for cylindrical objects having the core hole WC of the present invention, in the packaging device similar to the centering mechanism described above, two rotatable indexers are mounted on the lifter 30 at appropriate intervals. Lifter rollers 36, 36 are provided on the machine frame 1, and the second lifter rollers 36, 36 are provided on the machine frame 1.
A vertex detection means 60 is provided for detecting the vertex of the object to be packaged W placed on it and raised and generating a signal.
The moving distance M of the lifter 30 that has risen from the lower limit position of 0 until the apex of the object to be packed W is detected by the apex detection means 60
A moving distance detecting means 51 for detecting L is provided, and the lifter roller 36 is moved in the same direction at a set rotation speed SN set in advance in accordance with the moving distance ML detected by the moving distance detecting means 51. It is equipped with a control device to rotate and stop it. Further, the lifter 30 is provided so as to be able to rise and fall at a constant speed,
A pulse generating means for generating constant pulses as the lifter rises is provided, and the number of moving pulses MP generated by the pulse generating means during the period from the lower limit position of the lifter to the detection by the apex detecting means 6-0 is calculated. A moving distance detecting means 51 configured to count is provided, and a set rotation speed S corresponding to the number of moving pulses MP counted by the moving detecting means 51 is provided.
It is also possible to provide a restraining device for rotating the lifter roller 36 by N. Further, the main body is raised before the lifter roller 36 rotates a set number of times at the set rotational speed SN, and after stopping, the main body is lowered, and the band is primarily tightened while the main body is lowered.

[Operation] The cylindrical object to be packed W is placed on the lifter 30 at the lower limit position of the centering device in the packaging device configured as described above.
is carried in, and then the lifter 30 is raised at a constant speed by the elevating drive mechanism, the moving distance detecting means 51 starts counting the moving distance from the lower limit position of the lifter 30. For example, the number of movement pulses MP generated by the pulse generating means 52 that generates constant pulses as the lifter 30 rises
count. When the apex of the object W to be packed reaches the apex detection means 60 provided in the machine frame 1, the apex detection means 60
Based on the signal detected at 0, the moving distance detecting means 51 detects the number of moving pulses MP corresponding to the moving distance M from the lower limit position of the lifter 30 until it reaches the apex detecting means 60. Then, the control/a mechanism drives the lifter 30 by a preset distance S and a set number of pulses SP, which are set in advance in accordance with the moving distance ML, that is, the number of moving pulses MP, to raise or lower the lifter 30. Stop and unpack the item W.
The core hole WC of the slide arches 20 and 21 is fixed at a constant forward and backward position. In addition, the equal interval indexing device in the packaging apparatus configured as described above has a lifter 30 similar to the centering mechanism described above.
The object to be packed W placed on the lifter roller 36.
Depending on the size of After banding the first grain of wood, the device rotates the lifter roller 36 by a set number of rotations (rotations of the outer circumference) SN corresponding to the moving path IlIML to perform banding, and then the lifter roller 36 performs banding by a set number of rotations SN corresponding to the moving path IlIML. The object to be packaged W is rotated by the same number of rotations for the same number of rotations, and a set number of bands are applied. In other words, for a cylindrical packaged object W having a core hole WC, the core hole W
When packing, band hooks should be placed at equal intervals around C and the outer circumference.
For example, in the case of a three-band system, the angles between each band on the item W to be packed are equally spaced every 120 degrees, but the length of the outer circumference differs depending on the size of the item W, so the In order to rotate the object W to be packed at an equal angle by rotating the lifter roller 36 that slides on the outer periphery of the object W, the lifter roller 36 is rotated by a set rotation speed SN that is preset according to the size of the object W to be packed. It rotates. [Example] An example will be described with reference to the drawings. Fig. 1 shows the entire packing apparatus having a centering mechanism according to the present invention, and 1 is a machine frame, which drives the main body 10 of the packing machine up and down. It is supported by a mechanism so that it can be raised and lowered, and is suspended horizontally from the fixed arches 2 and 3 located on the left and right sides of the main body 10 and on both sides of the machine frame 1 in the vertical direction in the figure, and moves forward and backward to a fixed position. It has two slide arches 20 and 21 that advance and retreat into the core hole WC of the object to be packed supported by a lifter in position, and an air drive device 4 is provided on the side of the machine frame 1, and Below the machine frame 1, a lifter 30 is located parallel to the slide arches 20 and 21, and has a lifter 36, 36 that is rotatable by a rotary drive sWl provided with a motor.
is installed so that it can be raised and lowered freely. A band boule 5 pulls out a desired amount of bands from a band reel 6, pools them 9, and supplies the bands into the main body 10 via a back pool 7. Note that W indicates the item to be packed. The packaging machine main body 10 has a rectangular outer frame constituting the machine frame 1 supported by another frame body having a removable guide roller, and is provided on the machine frame 1 above the other frame body. Attach the rod tip of the air cylinder 8 and attach the packing machine body 10 to the machine frame 1.
It is installed inside so that it can be raised and lowered freely. In addition, the packing machine main body 10
A known band supply/tightening mechanism 12 and welding/cutting mechanisms 13 are housed inside the main body 10, and the band supply/tightening mechanism 12 and openings in the left and right frames of the machine frame l are provided on the lower surface of the main body 10. A bandway 14 is built in which connects the band guide arches 2.degree. 3 fixed with their faces facing each other and allows the packing band to pass through, and a phototube (not shown) is attached to the lower surface of the main body 10. The left and right band guide arches 2 and 3 are curved,
The upper end surfaces of the arches 2 and 3 are joined to the opening surface of a bandway 14 arranged linearly within the main body 10, and the lower end surface is connected to the entrance surface of the two slide arches 20 and 21. At this time, the slide arch is brought into contact with the opening surface of the upper side of the rear end of the slide arch so as to be in communication with it. The two slide arches 20 and 21 are housed in a case 25, with a rack carved on the lower surface of a guide rod (not shown), and a roller attached to the rear end of the guide rod that does not have the rack. There is. A gear meshing with the rack is connected to a motor via a chain to a sprocket of the gear. In this way, the guide launches the slide arches 20, 2.
1 moves forward and backward in a straight line without causing any vertical, horizontal, or vertical wobbling. As shown in FIGS. 2 and 3, the lifter 30 controls the rotation of a motor 32 of a lifting drive mechanism installed on a base 31 via a threaded rod 33, with links 34 and 34 intersecting each other at the center.
34 to the lower part of the lifter 30 and the base 31
rollers 3 provided at each end of the lifter 30 in the grooves of
5 rotates and moves to raise and lower this lifter 30 in a horizontal state. Further, the lifter 30 is provided with lifter rollers 36.36 at appropriate intervals in the longitudinal direction of its upper surface, and the lifter rollers 36.36 each have a sprocket 37 provided at one end as shown in FIGS. 1 and 4. .37
It is connected via a chain 40 to a motor 39 placed within a frame 38 suspended from the lifter 30 . In FIGS. 2 and 3, reference numeral 41 denotes an unloading board with a plate inclined toward the unloading line OL fixed on the base 31. When the lifter 30 is lowered to its lowest position, the lifter roller 36
installed at a height that protrudes from the surface of the In the figure, reference numeral 42 denotes a stopper that connects one end of the crank supported by the lifter 30 to the lifter roller 36 via a spring 43.
The lifter roller 3 is urged to protrude from the surface.
This is to prevent the items to be packed placed on 6 from moving out to the carry-in line IL side. Also, 44 is a stopper pin,
As the lifter 30 rises, an air cylinder protrudes from the surface of the lifter roller 36, and when the lifter 30 descends, it is lowered by the cylinder. Next, the centering mechanism according to the present invention will be explained. The centering mechanism is a lifter roller 36, 36 of the lifter 30.
Movement distance ML in which the top of the packaged item W carried upward has risen from the lower limit position of the lifter 30 to an arbitrarily specified position
The slide arch 20 detects the size of the object W to be packed, and then moves the lifter 30 up or down based on the detected moving distance MML to move back and forth to a fixed position.
This is for positioning the core hole WC of the object to be packed W at the above-mentioned fixed advance/retreat position of .degree.21. In FIG. 1, FIG. 5, and FIG. 6, PH1 is a phototube consisting of a pair of light emitting side and light receiving side, and is located at the highest position in the vertical direction of the outer periphery of the object W placed on the lifter 30 and raised. That is, the apex detection means 60 which detects the apex and generates a signal is formed, and the phototubes on the light emitting side and the light receiving side are parallel to and above the plane formed by the lifter rollers 36 and 36 on the lifter 30. Moreover, as shown in FIG. 5, they are attached to the vertical part of the outer frame constituting the machine frame 1, and are provided diagonally opposite to each other on the rectangular outer frame. Furthermore, in this embodiment, as shown in FIGS. 1 and 6, a phototube PH2 having the same structure as the phototube PH1 is provided above the phototube PH1. In addition, a plurality of phototubes P H1, P H2-P H are arranged at arbitrary intervals in the height direction.
n (n is any integer) as the above photocell PHI, PH2
You can also set it up as well. In FIGS. 1 and 2, reference numeral 51 denotes moving distance detecting means, which comprises a pulse generating means 52 such as an encoder or a pulse generator, and a counter (not shown) for counting the pulses generated from the pulse generating means 52. The moving distance ML of the lifter 30 that has risen from the lower limit position of the lifter 30 until the apex of the object W to be packed is detected by the apex detection means 60 is detected. This moving distance detecting means 51 will be described as a specific example based on FIG. A comb-like code plate 53a having a tooth shape is provided, and a sensor 54 that detects a notch in the comb-like code plate 53a and generates a signal is fixed to a support of the machine frame 1. and lifter 30
When the code plate 53a moves as the code plate 53a rises or falls, the sensor 54 generates a signal each time one notch of the code plate 53a passes, and a counter (not shown) counts this one signal as one pulse. It is equipped. Note that instead of the vertical comb-like code plate 53a, a disk-shaped code plate 53b with equally spaced notches is rotatably attached to the side surface of the frame 38 of the lifter 30 or the machine frame 1. A sensor 54 for detecting a notch in the disc-shaped code plate 53b should be provided, and an engaging member such as a rack and pinion or a sliding plate that rotates the disc-shaped code plate 53b as the lifter 30 ascends or descends is connected to the machine frame 1. Alternatively, it can be provided on the side surface of the frame 38. Therefore, the above-mentioned movement distance detection means 51
Detection is performed by counting the moving distance g1ML until the apex point detecting means 60 detects the apex of the object W placed on the lifter 30. That is, in the case of the pulse generating means 52 of the encoder, the lifter 3
Detects the number of movement pulses MP generated while 0 increases the movement distance 1$1ML. Therefore, the number of moving pulses MP corresponding to the moving distance ML becomes a detected amount depending on the diameter of the object W to be packed. Furthermore, in the apparatus of the present invention, the lifter 30 is further raised or lowered by a set pressure MSL corresponding to the moving distance ML detected by the moving distance detecting means 51, that is, the diameter of the object W to be packed, and A control device is provided for fixing the core hole of the object W at a constant advance/retreat position of the slide arches 20, 21). For example, in the case of the object to be packed W1 placed on the second lifter rollers 36, 36 on the lifter 30 at the lower limit position in FIG. The distance is MLI, and the set distance corresponding to this moving distance gML1 is SLI. That is, the control device moves the lifter 30 from the lower limit position to the phototube P.
Travel distance M until H1 detects the apex of the object to be packaged W1
Even if the lifter 30 rises by LI, the lifter 30 needs to further rise by the set pressure glsL1 until the core hole WC of the object to be packed W1 reaches the fixed advance/retreat position of the slide arches 20, 21. A set distance SLI corresponding to the detected moving distance g1ML1 is set in advance using a sequencer, etc., and the set pressure 111sLI is set in advance.
The lifter elevating/lowering driving mechanism is controlled so that the lifter 30 is further raised by the same amount and then stopped. In the case of an encoder that straddles the pulse generating means 5 using comb-like code plates 53a arranged at equal intervals of 5 mm in the vertical direction as shown in FIG. 2, one pulse corresponds to a moving distance of 10 mm. Therefore, the number of moving pulses MP is the total number of pulses generated every time the moving distance 111ML is moved by 10 mm, and the setting pulse SP, which is the set distance S corresponding to this number of moving pulses MP, is also set to move 10 mm for each pulse. is the total number of pulses generated. This set pressure MSL is counted by the moving distance detecting means 51 in the sequencer as le setting pulse SP, and after being reset, the moving distance detecting means 51 counts the number of moving pulses again, and the lifter drive mechanism is activated with the set pulse number. Controlled by stopping. Note that there is no need to limit the size of the object to be packed W to every 10 mm, and all objects to be packed that correspond to a period between a certain number of pulses and the next pulse are included. Also, to explain the case where two phototubes PHI and PH2 are provided, as shown in FIG. When the packaged item W2 is located above the height of the phototube PH1, the packaged item is located above the height of the phototube PH1.
1 is shielded from light, so the phototube PH is installed above it.
2 is set up to function. Distance ML2'r that the lifter 30 moves from its lower limit position until it detects the top of the object to be packed W2 from the phototube PH21! When the object to be packaged W2 is lifted up, the core hole of the object to be packed W2 may pass through the fixed forward and backward positions of the slide arches 20 and 21 and be located above them. Therefore, the setting path 1llI corresponding to this moving distance jl1ML2
SL2t! When the lifter 30 is lowered and stopped, the core hole of the object to be packed W2 is fixed at a constant forward and backward position of the slide arches 20 and 21. Therefore, if a plurality of photocells PH (for example, n) are provided, the unshielded photocell P directly above the photocell @PH whose light is shielded by the object W to be packaged.
Since H functions as the apex detection means 60, if the distance between each of the plurality of phototubes PH is set small, the distance of descending by the set path 11isL2, that is, the distance of returning back, can be reduced as in the case of the object to be packed W2. It has the advantage of shortening the operating time. Furthermore, if the phototube PHn in the uppermost position is used only for the maximum packing possible size of the object W to be packed, there is a risk that the top of the object W placed on the lifter 30 will collide with the main body of the packing machine above. This can be prevented and contributes to safety. In this case, the maximum size that can be packed is slide arch 20
, 21 to the photoelectron 'fi: PHn is the maximum radius of the object W to be packed. That is, when the top of the object W placed on the lifter roller 36°36 rises to the phototube PHn, the object W
This is because the core hole WC of the slide arches 20, 21 is located at a constant advance/retreat position, so the setting path glsL becomes zero. Note that since the object W to be packed is supported by lifter rollers 36 and 36 at appropriate intervals along the outer periphery of the object W in the longitudinal direction, the position of the lowest point of the object W to be packed depends on the size of the object W to be packed. That is, the amount of fall from the lifter rollers 36 and 36 differs, but the set distance SL corresponding to the moving distance lI1ML is set by correcting the amount of fall. Further, another embodiment of the moving distance detecting means 51 will be described with parts similar to those of the above-mentioned moving distance detecting means being omitted. As the moving distance detecting means 51, a device such as a sequencer SQ having a built-in pulse generator serving as the pulse generating means 52 and a counter for counting the pulses generated from the pulse generator can be used. In this case, the lifter 30 moves up and down at a constant speed V, and a limit switch LS detects that the lifter 30 starts rising from the lower limit position and generates a signal.
is installed in the machine frame 1, and in response to a signal generated from a limit switch (LSh), the sequencer SQ generates a constant pulse P per unit time from a built-in pulse generator, and at the same time generates a constant pulse P by a built-in counter. to add. Therefore, as shown in FIG.
0, the number of movement pulses MP generated until the pulse generator of the sequencer SQ detects the top of the packaged object W with the phototube PH serving as the top detection means 60 is PxML.
/V (P: pulse, ML=moving distance, ■=velocity), and the number of pulses corresponds to the diameter of the object W to be packed. Therefore,
Since the set pulse number SP corresponding to the moving pulse number MP is set in advance, the lifter 30 further moves by the set pulse number SP at a constant speed (VXSP).
/P's moving distance glsL. Next, the device for equally spaced indexing of the outer periphery of the object to be packed W according to the present invention will be explained without describing the same parts as the above-mentioned centering mechanism.
The size of the object W to be packed is detected by detecting the moving distance in which the top of the object W carried onto the lifter 36 has risen from the lower limit position of the lifter 30 to an arbitrarily specified position, and using this moving distance as a reference. , two lifter rollers 36, 36, which are rotatably provided parallel to each other at an appropriate interval in the axial direction, are rotated by a number of rotations corresponding to the moving distance, so that the outer part of the object to be packed W is equally divided at each position. The rotation is stopped, and each time the rotation is stopped, the object to be packed W is wrapped with a band.The so-called three-band and four-band bands are used for packing. The moving distance detecting means 51 and the apex detecting means 60 can be configured in the same manner as the centering mechanism described above. A control device is provided for rotating the lifter roller 36 by a set rotational speed SN corresponding to the moving distance ML detected by the moving distance detecting means 51. For example, the moving path 1i11ML is provided with n stepwise regions every 10 mm, and each region is MLI, ML2, M L
n, and in the control device, the moving distances ML1, , M
n multiple setting times S T corresponding to L2-MLn
1, ST2, -STn are set. n setting times ST 1 , ST 2 ,
ST n l The lifter roller 36 is connected to the chain 40.
The motors 39 are rotated for a set time and then stopped, and after the set time ends, a signal is generated to perform banding. Similarly to the above, the lifter roller 36 is rotated for a set time and stopped, and the banding is repeated according to the number of bands to be banded. Note that the setting timer STn corresponding to the moving path 11i M L n is provided so as to be switched according to the number of bands to be applied. This is because, for example, in the case of three-band and four-band, the angle C between each band in the item W to be packed, ? Since they are different from each other by 120 degrees and 90 degrees, the size of the same object W, that is, the moving path glIM
This is because even if L is the same, the number of rotations of the lifter roller 36 will be different between three-line and four-line cases. Note that the n setting timers STI and 5T2STn can be stored in the sequencer SQ. To explain the case of the object to be packed W1 in FIG. If you want to
The outer circumference of the object to be packed W1 of 00 nm is 300πmm, and since this is to be hung by three bands, the outer circumference is equally divided into thirds, that is, the outer circumference is banded at intervals of 100πmm. Therefore, the diameter of the lifter roller 36 is 100 mm.
If m m, the circumference deficit of the lifter roller 36 is 1001 mm, so the set rotation speed SN of the lifter roller 36 corresponding to the moving path #ML210 mm is 100 mm.
yr/100w = 1 rotation. Then, set timer S rotates the motor 39 for a set time.
Since T is set so that the lifter roller 36 rotates once in correspondence with the moving distance ML 210 mm, it is necessary to rotate the lifter roller 36 (to be packed W) exactly 12 times.
Rotate 0 degrees and stop. In addition, when it is desired to wet the packaged object W1 with a diameter of 450 mm three times, assuming that the moving path fiML is 70 mm,
The outer circumference of the object w1 to be packaged, which has a diameter of 450 mm, is 450 π mm, and since it is a triple band, the outer periphery is banded at intervals of 150 π mm. Since the outer circumference of the lifter roller 36 is 100πmm,
The set rotation speed SN of the lifter roller 36 corresponding to the case where the moving distance MLI is 70 mm is 150π/100π=
It becomes 1.5 rotations. Therefore, similarly to the above, the timer ST is set in advance to correspond to the moving distance lIIML1 of 70 mm, which is the set time for rotating the lifter roller 36 by 1.5 rotations. Next, the operating state of the above embodiment will be described as a code plate of a mechanical encoder as shown in FIG.
A description will be given of the case where the object to be packed W1 shown in FIG. 6 is packed using the pulse generating means 52 using the comb-shaped code plates 53a arranged at equal intervals, and the rest will be omitted. The packaging machine main body 10 is now in the highest position, and each end face of the bandway 14 in the main body 10 is joined to the curved left and right fixed arches 2 and 3 fixed to the machine frame 1. Further, the left and right slide arches 20, 21 are opened to the maximum extent and are completely housed in the case 25, and the lifter rollers 36, 36 of the lifter 30 are at the lower limit position of the lifter as shown in FIG. At this time, the sensor 54 fixed to the machine frame 1 detects the notch at the highest point of the comb teeth of the code plate 53a provided on the side surface of the frame 38. In this state, as shown in FIG. 6, when the object to be packed W1 is carried in and placed on the lifter rollers 36 and 36 and the start button is turned on, the lifter 30 is moved to the threaded rod 33 by the rotation of the motor 32 which is a lifting mechanism. By moving the roller 35 at the end of the link 34 via the link 34, the link 34 is raised in a horizontal state. At the same time, the code plate 53a rises, so the sensor 54 generates one pulse every time it detects the next notch in the code plate 53a.
Each time the pulse increases, one pulse is generated, and a counter (not shown) starts adding up the number of pulses. The lifter 3 is moved until the apex of the object to be packed W1 blocks light from the phototube PH1, which is the apex detection means 60.
When 0 increases, the phototube PH1 generates a detection signal, and this detection signal causes the counter to stop adding up and detect the number of moving pulses MP1. At this time, the moving distance ML] is M
PI The object to be packed W1 is further raised by the distance and then stopped.
The core hole WC is fixed at a constant forward and backward position of the slide arches 20 and 21. That is, the control device counts the number of pulses of the set pulse number SPI again as the number of movement pulses using the movement distance detecting means 51, generates a count end signal from the sequencer as a movement end signal, and controls the lifting mechanism of the lifter. Stop. Then, in response to the movement end signal, the motor of the slide arch starts rotating.
1 advances into the core hole WC of the object to be packed below the center shaft of the packing machine main body 10 so that the band can pass through, and the projections provided on the guide rods of the arches 20 and 21 are inserted into the case 25. When the limit switch LS2 is pressed, the motor is stopped and both arches 20 and 211 are connected. The signal of the limit switch LS2 (from the feed roller ζ of the band supply mechanism 12) feeds out the band, and this band feeds out the band from the connected slide arch 20.
, 21 and reaches the gripping mechanism at the tip of the lug in the main body 10, the acid part

[This setting number is 1-note switch L.
The tip of the band presses S3. Further, the band feeding mechanism is opened for its feeding time by the timer Tli, and the feed motor stops rotating. A mint switch L is provided in the gripping mechanism at the tip of the band.
Pushing in with the band of S3 Then, with the OFF signal, the main body descends from the 9th position and the 8th position, and
Reversing force 9 of the band supply mechanism 12 starts (-next tightening). The main body 10 stops at the position where the phototube or limit switch provided on the bottom surface of the main body detects the object W to be packed. The reversal is completed after a certain period of time has elapsed by the timer T2, but before that, the secondary tightening mechanism starts the secondary tightening of the gutter at No. 4M of the phototube. As a result of the tightening, it pops out from each arch and the bandway, and is then wound around the object to be packed and tied tightly.When the secondary tightening of the band that started when the phototube is turned on is finished by timer T3, the camshaft is again is rotated by the control motor, the band supply end side is gripped and fixed, and the band is held in a tight state. At the same time as the rotation of the camshaft stops, timer T4 is turned on, and after a certain period of time, the camshaft rotates again and the band overlaps. The bonding and cutting processes between the parts are completed, and - times of packaging is completed.Then, the rotation of the camshaft is controlled by the other limit switch L.
In order to turn on S4, the main body 10 is raised by the cylinder 8, and the bandway 14 inside the main body 10 is moved to the fixed arch 2.
, 3 When it reaches the position where it connects with the upper edge, the limit switch L
S5 is turned on and the main body 10 stops rising. Simultaneously with the stop, the setting timer ST in the control device of the equal interval indexing device turns ON, and the motor 39 that drives the lifter rollers 36 and 36 rotates for a set time, that is, a preset time corresponding to the moving distance MML. do. Therefore, the lifter rollers 36, 36 are rotated by the set rotational speed SN via the motor 39 and then stopped. Then, the operations from lowering the main body to one packing process are performed. Thereafter, the object W to be packed is rotated every third or fourth of its outer circumference, and the main body is raised, the stop band is fed, the main body is lowered, the stop is tightened, the band overlaps are bonded, and the cutting is performed. The above operation is repeated a predetermined number of times or more by repeating the packing process, and as shown in Fig. 7, an arbitrary number of three (or four) bands are applied to the item to be packed, and finally the main body is lifted up. Then,
Both slide arches 20 and 21 are opened by a motor in response to a signal from a limit switch LS5 that detects the highest position of the main body. When the slide arches 20, 21 are completely housed in the case 25°25, the limit switch LS6 is turned ON by the guide of the slide arches 20°21, and this signal stops the slide arch motor and starts the lifter. 30, the timer T6 connected to the motor 32 is ON, the motor 32 rotates, and the lifter roller 36 is at the lowest position (
Reach the 3rd Z (two-dot chain line). Therefore, the items to be packed are transferred onto the carry-out line OL by the carry-out board 41. When the lifter 30 reaches the lowest position, the limit switch LS7 provided in the acid section is turned on, and the stoppage of the lifter 30 from lowering is released. Therefore, by the time amplifier of the timer T6 connected to the motor 32 of the lifter 30,
The lifter rises again and returns to the position shown by the solid line in Figure 3. Effects of the Invention As described in detail above, the present invention provides a machine frame, a packaging machine body provided within the machine frame so as to be movable up and down, and a packaging machine body that is connected to a bandway in the packaging machine body and located at a fixed position. A slide arch is provided to move forward and backward, and a lifter is provided below the slide arch to be able to move up and down, and the lifter supports the longitudinal outer circumference of a cylindrical object to be packed having a core hole at an appropriate interval. In the packaging apparatus, the machine frame is provided with an apex detection means for detecting the apex of the object placed on the lifter and raised and generating a signal, and furthermore, the apex detection means detects the apex of the object placed on the lifter and raised. A moving distance detecting means is provided for detecting the moving distance of the lifter that has risen until it detects the top of the object to be packed, and a set distance M'J is set in advance corresponding to the moving distance detected by the moving distance detecting means. Since a control device is provided to further raise or lower the lid, the maximum and minimum diameters of the packaged items are not limited (the top of the packaged items can be accurately detected regardless of the diameter). To provide a centering mechanism in a packaging device that automatically positions the core hole of an object to be packed between slide arches to enable packaging, and that is not affected by the carrying speed of the object to be packed and has a simple structure. In addition, a vertex detection means is provided on the machine frame to detect the vertex of the object to be packaged that has been placed on the second lifter roller and has risen, and generates a signal, and furthermore, the apex detection means detects the vertex of the lifted object placed on the second lifter roller and generates a signal. A moving distance detecting means is provided for detecting the moving distance of the lifter which has risen until it detects the top of the object to be packed, and at a set rotation speed set in advance corresponding to the moving distance detected by the moving distance detecting means. Since the I11 device that rotates and stops the lifter rollers in the same direction a set number of times is provided, there is no limitation on the maximum and minimum diameters of the objects to be packed, and no matter what diameter the objects are to be packed, they can be accurately rotated. It is possible to provide an equal-interval indexing device for a packaging apparatus having a simple structure and capable of detecting the apex of the object and accurately packing the object at equal intervals around the outer periphery of the object in accordance with the size of the object. Ta.

[Brief explanation of the drawing]

Figures 1 to 6 show one embodiment of the present invention.
The figure is a front view showing the whole, Figure 2 is a schematic diagram showing the lifter and unloading board, Figure 3 is a sectional view showing the operation of the lifter, Figure 4 is a partially enlarged view showing the lever installation state, Figure 5 4 is a side view showing an example of the centering mechanism, FIG. 4 is a partial view showing the main parts of the lifter roller, FIG. 5 is a plan view showing the state in which the apex detection means is installed, and FIG. The schematic diagram, Fig. 7, shows a diagram of the state of binding of objects to be packaged by the device of the present invention. 1- Machine frame, 2, 3... Fixed arch, 4 Air drive device, 5, 6. Band pool. , 7-back pool, 8.
Air cylinder, 10 Packing machine body, 12・Band supply・
Tightening mechanism, 13 Band welding and cutting mechanism, 14 Band way, 20. '21...Slide arch, 25. Case, 30・Lifter 31・Base, 32 Motor, 33
・Nenbo, 34 ・Rinfu, 35- Roller, 36
Lifter roller, 37- Sprocket, 38...Frame, 39-Motor, 4Q-Chain, 41-@Extrusion, 42
-Stopper 43...Spring, 44-Stopper pin, 51...Movement distance detection means, 52-Pulse generation means, 53-Code plate, 54 Sensor, 60-Vertex detection means, PH phototube M L-Movement Distance SL・・−Setting distance MP・
・Moving pulse fi SP・・Setting pulse number ST・
...Setting timer SN...Setting rotation speed Figure 4 Patent applicant Strabac Co., Ltd.

Claims (6)

[Claims] (1) A machine frame, a packaging machine body provided within the machine frame so as to be able to rise and fall freely, a slide arch that communicates with the bandway within the packaging machine body and that is movable in a fixed position, and the slide arch. In the packaging device, the lifter is provided to be able to rise and fall freely below the machine frame, and the lifter is provided to support the longitudinal outer periphery of a cylindrical object to be packed having a window hole at an appropriate interval. A vertex detection means is provided for detecting the apex of the object to be packed that has been placed on the lifter and has risen, and generates a signal. A moving distance detecting means for detecting a moving distance is provided, and a control device is provided for further raising or lowering a preset distance lifter corresponding to the moving distance detected by the moving distance detecting means. A centering mechanism in a packaging device for cylindrical objects having a core hole. (2) The lifter is provided so as to be capable of being raised and lowered at a constant speed, and a pulse generating means is provided for generating a constant pulse as the lifter ascends, and the pulse is generated from the lower limit position of the lifter until it is detected by the apex detection means. A moving distance detecting means configured to count the number of moving pulses generated by the means is provided, and a set pulse number (=
2. The centering mechanism in a packaging apparatus for cylindrical objects having a core hole according to claim 1, further comprising a control device for raising or lowering the lifter. (3) The centering mechanism in a packaging apparatus for cylindrical objects having a window hole according to claim 1 or 2, wherein the set distance is detected by the moving distance detection means. (4) A machine frame, a packaging machine body provided within the machine frame so as to be able to move up and down, a slide arch that communicates with the bandway within the packaging machine body and that is movable back and forth at a fixed position, and the slide arch. The lifter is provided with a lifter that can be raised and lowered freely below the lifter, and two rotatable lifter rollers are provided on the lifter with an appropriate interval so as to support the longitudinal outer periphery of a cylindrical object to be packed having a window hole. In the packaging apparatus, the machine frame is provided with an apex detection means for detecting the apex of the object placed on the second lifter roller and raised and generating a signal, and further detecting the apex from the lower limit position of the lifter by the apex detection means. A moving distance detecting means is provided for detecting the moving distance of the lifter that has risen until it detects the top of the object to be packed, and the rotation speed is set at a preset rotation speed corresponding to the moving distance detected by the moving distance detecting means. An equally spaced indexing device for a packaging device for cylindrical objects having a core hole, characterized in that a control device is provided for rotating and stopping the lifter rollers in the same direction a number of times. (5) The lifter is provided so as to be able to rise and fall at a constant speed, and a pulse generating means is provided for generating a constant pulse as the lifter ascends, and the pulse is generated from the lower limit position of the lifter until it is detected by the apex detection means. A moving distance detecting means configured to count the number of moving pulses generated by the moving distance detecting means is provided, and the lifter roller is rotated and stopped a set number of times at a set rotation speed corresponding to the number of moving pulses counted by the moving distance detecting means. 4. An equally spaced indexing device in a packaging device for cylindrical objects having a core hole according to claim 3, further comprising the device. (6) The core hole according to claim 4 or 5, wherein the main body is raised before the lifter roller rotates a set number of times at a set rotation speed, and after the rotation is stopped, the main body is lowered, and the band is primarily tightened while the main body is lowered. An equal interval indexing device in a packaging device for cylindrical objects.