JP3461866B2 - Ball packaging equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention is to wrap spherical vegetables such as lettuce and spherical vegetables such as pomelo with a film,
The present invention relates to a spherical object packaging device that bundles the films, heat-welds them, and packages the films.

[0002]

2. Description of the Related Art As a device for packaging a film in a spherical object such as a spherical vegetable, a film supply mechanism for supplying a film by drawing the film with a drawing member and cutting the film with a cutting member The receiver elevating mechanism that elevates and lowers the receiver to be placed and the upper and lower scissors-shaped members slide,
The scissor-shaped member is provided with a bundling mechanism configured to grip, weld and cut the film, and the film is previously supplied above the receiver before the spherical object is supplied by the film supply mechanism. The spherical object is placed on the receiver via the, and when the receiver descends to an appropriate position, the binding mechanism binds and welds the end portion of the film wrapping the spherical object above the spherical object. A spherical object packaging device having a structure in which the receiving body is raised to its original position after cutting and releasing the packaged spherical object is known.

[0003]

However, the film supply mechanism is conventionally driven only after the receiver is lifted after the bundling mechanism has completed the packaging, that is, the spherical object is supplied by the original receiver. After returning to the raised position, the film supply mechanism is driven to supply the film. Therefore, until the film supply is completed, it is necessary to wait until the next spherical object is placed on the receiving body, and in the continuous packaging work,
It was inefficient.

In addition, when an abnormal situation occurs, such as when the spherical object is displaced from the receiver or the film cutting in the film supply mechanism or the bundling mechanism is incomplete during the operation of the apparatus,
It is necessary to stop the drive of each mechanism of the device. Conventionally, the drive of the entire packaging device was stopped, the drive of each mechanism was stopped at that position, the cause of the abnormality was removed, and then each mechanism was driven again from the stop position. Even if each mechanism is driven from the state of being driven, such as when the object itself is removed, the driving is useless and a loss of working time occurs. In addition, it is often inconvenient to return each mechanism from the driving state to the driving state. Generally, returning the device to the initial state before supplying the spherical objects to the receiving body facilitates the next packaging work. Moreover, it leads to what can be done in a short time.

[0005]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems and constitutes a spherical object packaging apparatus with good work efficiency. In claim 1, a film feeding mechanism for feeding the film by pulling out the film by the pulling member and cutting the film pulled by the cutting member, and a receiver elevating mechanism for elevating and lowering the receiver on which the spherical object is placed. , At the binding position
And a binding mechanism for gripping the film on the spherical object , welding and cutting the film, placing the spherical object on the film supplied by the film supply mechanism, and descending to an appropriate binding position . In addition to simultaneously performing the operation of bundling, welding and cutting the film by the bundling mechanism above, and the operation of supplying the film for spherical object packaging to be supplied next to the supply position by the film supply mechanism , The upper end of the spherical object passes
Is provided with an upper end position detection sensor for detecting
After a predetermined time from the detection of the upper edge of the position detection sensor,
When the spherical object reaches the binding position, the binding mechanism and the fiber
The lum supply mechanism is configured to start driving .

According to a second aspect of the present invention, in the spherical object packaging apparatus according to the first aspect, the scissors-like member of the bundling mechanism is opened by operating the reset switch when an abnormality occurs, and the pull-out member of the film supply mechanism is in the pull-out end position. Then, the cutting member is displaced to the non-cutting position, and the receiving body elevating mechanism is forcibly returned to the initial state in which it is raised to the uppermost position.

[0007]

[Operation] The drive system of the bundling mechanism and the film supply mechanism are divided into upper and lower parts and do not interfere with each other, so they can be driven at the same time, and at the same time when the bundling mechanism is driven, the film for the next spherical object packaging is supplied. Therefore, when the receiver is raised to its original position after packaging, the next spherical object packaging operation can be started immediately.

[0008] Also, in the event of an abnormality, the spherical object is not damaged,
After eliminating the cause of the abnormality, the apparatus can be returned to the initial state and the next spherical object packaging operation can be immediately started without causing a worse state.

[0009]

The problems and configurations to be solved by the present invention are as described above, and the embodiments of the present invention shown in the accompanying drawings will be described below. FIG. 1 is an overall perspective view of the spherical object packaging apparatus, FIG. 2 is an internal side view of the same, and FIG. 3 is a partial internal side view showing the structure of a transport chain of a film drawing member and a limit switch for detecting the front and rear sliding end portions. 4 is a cross-sectional view taken along the line AA in FIG. 2, FIG. 5 is a cross-sectional view taken along the line BB in FIG. 2, FIG. 6 is a front view of the interior of the spherical object receiver as viewed from the F side in FIG. 2 shows the bundling mechanism, an internal front view seen from the F side in FIG. 2, FIG. 8A is an internal front view of the film cutting member seen from the R side in FIG. 2, and FIG. Partial side view showing the raising and lowering configuration of the blade, (a) of FIG.
2 is a front view of the film roll mounting table as viewed from the R side in FIG. 2, (b) is a side view of (a), and FIG. 10 (a) is a film drawing member when the clamp is opened as viewed from the R side in FIG. 12B is a side view of FIG. 11A, FIG. 11A is a front view of the film pull-out member when the clamp is closed, and FIG. 11B is a side view of FIG. (A) is a plan view of the upper binding scythe, (b) is a plan view of the upper binding scissors when opened, (a) is a plan view of the lower binding scissor, (b)
Is a plan view of the lower binding scissors when opened, FIG.
Is a plan view of the upper binding scythe, (b) is a plan view of the upper binding scissors when closed, (a) of FIG. 15 is a plan view of the lower binding scythe,
(B) is a top view at the time of closing the lower binding scissors.

The overall structure of the spherical object packaging apparatus of the present invention will be described. The entire apparatus is covered with a box-shaped apparatus case 1, and above the apparatus case 1, a film roll FR, a film cutting member FC and a film drawing member FE are arranged in parallel as shown in FIG. The film supply mechanism is composed of: a spherical object supply hole 2a is formed in the upper plane 2 of the apparatus cover 1 between the film cutting member FC and the film drawing member FE, and the spherical object supply Inside the hole 2a, a fork 3, which will be described later, which is a spherical object support, is moved up and down.

A packing operation by the present spherical object packing apparatus will be described. The film drawing member FE is the film cutting member F.
The film cutting member FC slides to the C position, grips the film end held by the film cutting member FC and pulled out from the film roll FR, and slides to the original position to pull out the film. Cut the film,
The film is supplied on the upper flat surface 2, that is, above the fork 3. A spherical object such as lettuce is placed on the fork 3 from above the supplied film, and when the packaging switch 8, 8 described later is pushed, the fork 3 descends, and when it descends to an appropriate position, it stops. In the device case 1, the film is bound, welded and cut by the binding mechanism. When the packaged spherical object is released from the fork 3, the fork 3 moves up and returns to its original position. At the same time as the binding mechanism is driven, the film supply mechanism is driven as described above. When the fork 3 returns to the position of the vegetable supply hole 2a, the film is already supplied, so that the next spherical object can be immediately supplied onto the spherical object support 3. The worker stands on the side of the device case 1 where the packaging switches 8 and 8 are provided and supplies the spherical object to the fork 3. The packaged spherical object is
It is discharged from the discharge port provided on the opposite side so as not to hinder the work of the worker.

Each switch and instrument in FIG. 1 will be described. A control box 4 is fixedly installed in the device case 1, and the surface thereof is arranged as an operation panel 4a on the side surface of the device case 1. In the operation panel 4a, 5 is a power switch, which is a power switch. 6 is a reset switch, which is an initial state forced return means for returning each member to the initial state when pressed. Reference numeral 7 is a temperature confirmation panel for confirming whether the heating temperature of the heater for film welding and cutting of the scissors member of the binding mechanism described later is sufficient. Next, in the upper part of the device case 1, 8 and 8 are packaging switches. When two switches are pushed simultaneously, the forks 3 descend and a series of packaging work is performed. The reason for pressing two switches at the same time is that if one switch is used, there is a high possibility that it will accidentally be pressed and operate. Also,
In the case of a single switch, if there is no place for the hand to operate the switch and if it is placed at the shutter 2 position, the hand may be caught in the sliding film pull-out member FE, and the two switches are pushed. Therefore, it is also possible to place both hands at both switch positions to ensure safety.
Reference numeral 9 denotes an emergency stop button, which is a switch for locking each member so that it does not operate accidentally, and the lock is released during work.

Next, the drive structure of each member of the spherical object packaging apparatus will be described with reference to FIGS. First, an elevating mechanism for the fork 3 which is a fork-shaped spherical object support will be described. As shown in FIG. 4, a pedestal raising / lowering motor 10 and reduction gears 11 and 12 are arranged in the lower part of the device case 1. The output pulley of the pedestal raising / lowering motor 10 is wound around the belt as shown in FIG. Speed reducer 11 from 10a
To the input pulley 11a of the speed reducer 12 and the input pulley 12a of the speed reducer 12, and the crank 13 is fixed to the output shaft 12b of the speed reducer 12. The speed reducer 11
The output shaft (the output sprocket 11b described later) and the output shaft 12 of the speed reducer 12 are equipped with an electromagnetic clutch.
From the pedestal lifting motor 10 to the input pulley 11a.
Although the input of 2a is always performed, the drive can be stopped or restarted by turning on and off the electromagnetic clutch based on the switching of the sensor and the limit switch described later. .

On the other hand, the portal support 17 is vertically fixed from the lower surface of the apparatus case 1, and the vertical sliding shafts 16 and 16 are inserted into the fitting holes formed in the upper portion of the portal support 17. Is vertically slidably fitted, the upper end portions of the vertical sliding shafts 16 and 16 are fixed to the fork support body 15, and the end portions of a plurality of rods forming the fork 3 are attached to the fork support body 15. It is firmly fixed to form the fork 3. The connecting rod 14 is pivotally connected to one rod of the fork 3 from the crank 13, and the crank 1 is driven by the driving force of the pedestal lifting / lowering motor 10.
When 3 rotates, the end of the connecting rod 14 on the crank 13 side rotates together with the rotation of the connecting rod 14.
The fork 3 side end of 4 reciprocates up and down. In this way, the fork 3 is configured to reciprocate up and down.

In FIG. 6, the spherical object placed on the fork 3 is at the X position when it is at the uppermost position of the fork 3, and in addition to FIG. 2, the Y position is for binding. The ascending / descending stop position and the Z position are the lowest positions of the fork 3. As shown in FIG. 6, a discharge port 1a for discharging a spherical object packaged as shown in FIG. 6 is formed in one side of the device case 1, and a spherical object chute 18 in the device case 1 has the discharge port 1a.
Is arranged in a slanted shape from the lower end of the fork, and the inner end of the fork is provided with projecting bar members 18a, 18a ... And the fork on which the spherical object that has been packaged is placed at the Y position. When 3 descends to the Z position, the rod forming the fork 3 passes through the gap between the rods 18a, 18a ... And descends, so that the mounted spherical object is inherited by the rod 18a. Then, the spherical object chute 18 slides down and is discharged from the discharge port 1a.

As the fork 3 on which the spherical object is placed descends, the film stretched on the upper flat surface 2 interposed between the spherical object and the fork 3 extends from the spherical object supply hole 2a to the apparatus case. The spherical object supply hole 2a
By passing through the film, the edge of the film shifts to the upper side of the spherical object to form a shape that covers the spherical object. Then, at the bundling position Y, the end portion of the film that has come to the position above the spherical object is bound and welded by the bundling mechanism.

However, since the spherical objects such as lettuce have different sizes, the binding position Y is changed according to the size.
Must be adjusted up and down. Therefore, as shown in FIGS. 2 and 5, an upper end position detection sensor 19 which is a photoelectric sensor is arranged below the upper flat surface 2. The upper end position detection sensor 19 includes a light projector 19a and a light receiver 19b.
When the spherical object is placed on the fork 3 and descends, the upper end of the spherical object sinks below the spherical object supply hole 2a and passes through the sensor light locus of the upper end detecting sensor 19, The light from the light projector, which has been blocked by the spherical object, is received by the light receiver and detected by the sensor. The position of the spherical object suitable for bundling is the position reached after a predetermined time from the passage of the spherical object supply hole 2a at the upper end of the spherical object where the sensor detection is performed, and therefore, the fork 3 descends after a predetermined time from the sensor detection. To stop. That is, the position lowered from the passing position of the spherical object supply hole 2a, which is different for each spherical object, for a predetermined time is the binding position Y for the spherical object.

When the spherical object reaches the bundling position Y,
After a lapse of a predetermined time from the detection of the passage of the upper end portion by the upper end position detection sensor 19, the bundling mechanism and the film supply mechanism described later start driving. Here, the vertical position of the binding position Y is adjusted by adjusting the length of the predetermined time.
This is used to adjust the tightness of the wrapped film. That is, when tight packaging is required, the binding position Y
The predetermined time is shortened in order to raise the above, while the predetermined time is lengthened and the binding position Y is set downward when requesting loose packaging.

Further, a limit switch 20 is fixedly mounted on the fork support body 15 so that it is switched when the upper end position and the lower end position of the fork 3 are reached.
When the fork 3 reaches the lower end position, the output shaft 11b of the speed reducer 11 is switched based on the switching of the switch.
Is stopped for a certain period of time to stop the raising and lowering drive of the fork 3 and wait until the spherical object is surely inherited by the spherical object chute 18 and falls. Then, after a lapse of a certain time, the driving of the output shaft 11b is restarted to raise the fork 3, and when the uppermost position is reached, the limit switch 20 is switched, thereby driving the output shaft 11b. When the fork 3 is stopped and the spherical object is placed next and the packaging switch 8 is pushed, the output shaft 11b is driven again and the fork 3 descends.

Next, the binding mechanism will be described. The binding mechanism binds and welds the film with the upper binding scissors US and the lower binding scissors LS. The binding scissors are arranged on the upper and lower sides, because the film is likely to be misaligned with one scissor at the time of bundling, and by grasping with the upper and lower scissors, the film can be accurately bound without misalignment. . The upper binding scissors US is formed by combining the upper binding scissors 21 shown in FIG. 12 (b) or FIG. 14 (b), and the lower binding scissors LS.
Is the lower sickle 2 shown in FIGS. 13 (b) and 15 (b).
It is a combination of two. The upper and lower binding sickles 21 and 22 are respectively fitted with opening / closing pins 27 described later,
Long holes 21a and 22a are formed so that the scissors can be closed by rotating the opening / closing pin 27 in the front-rear direction.

In addition, in the portion of the binding sickle that sandwiches the film, cutout portions 21b and 22b are formed in the vicinity of the front and rear center. This is because in the process of sandwiching the film, if you press it from the center of the front and rear of the film first, the film will be lifted and the binding will not work well, in the worst case, the film will be damaged. Since the film having a substantially circular shape in plan view is gradually pressed along the circumference from the front and rear ends of the circumference, it is possible to satisfactorily hold the film without misalignment, so that the cut portions 21b and 22b are provided. Thus, the front and rear central portions of the film are delayed so that they are finally pressed and pinched. Further, the cutout portion 22b of the lower uniting sickle 22 has a linear shape having a constant width, which means that when the lower uniting scissors LS are finally closed by the scissors as shown in FIG. 22b
Since 22b has a constant width, the film is sandwiched without being cut, and the film is cut by the upper binding scissors US. Therefore, the cutout portion 21a of the upper binding sickle 21 has a dot shape, and the film is surely cut when the scissors are finally closed. In order to further reduce the positional deviation of the film, as can be seen by comparing FIG. 12 (a) and FIG. 13 (a), the film grip portion when the upper binding scissors US is in the open state is The area of the scissors LS is larger than that of the film grip portion in the open state. This is because the lower binding scissors LS start to pinch the film before the upper binding scissors US, and by being pinched from below, the film is not displaced and the certainty of binding is improved. It will improve.

The welding and cutting of the film are carried out by using the heated upper binding scissors US. As shown in FIGS. 12 and 14, each upper binding sickle 21 has a heater supporting portion 21c fixed thereto. A heater for heating the upper binding sickle 21 and a temperature sensor are arranged on the heater supporting portion 21c.

The upper bundling scissors US and the lower bundling scissors LS having the above-described structure are arranged at the positions for bundling the films located above the spherical objects at the bundling position Y. That is,
As shown in FIGS. 2 and 5, in the device case 1, a rotary shaft fixing plate 24 is laterally provided, and the rotary shaft 23 is provided so as to project upward from the rotary shaft fixing plate 24. In FIG. 23, as shown in FIGS. 12 to 15, the upper binding scissors 21 and 21 are pivotally supported to form the upper binding scissors US, and further just below the upper binding scissors US pivot position of the rotary shaft 23. The lower binding scissors 22 and 22 are pivotally supported to form the lower binding scissors LS. The position of the lower binding scissors LS is slightly above the spherical object at the binding position Y as shown in FIG.

Pillows 25, 25 are fixed in the lower part of the device case 1 as shown in FIG.
25, a rotary shaft 26a protruding left and right at the lower end of the flat rod 26 is rotatably supported, and the flat rod 26 is moved to the F-
It stands upright so that it can rotate in the R direction. An opening / closing pin 27 is projectingly provided on the upper end of the flat rod 26, and the opening / closing pin 27 is fitted and inserted into the long holes 22a, 22a of the lower binding scissors 22, 22 of the lower binding scissors LS. , And the upper holes 21a and 21 of the upper binding sickle 21 and 21 of the upper binding scissors US located further above
a is inserted into the upper end of the elongated holes 21a, 21a.
More prominent.

On the other hand, FIG. 2 and FIG.
As shown in the figure, the horizontal pins 28 are provided so as to project, and the pillows 30 and 30 fixed to the fixing plate 29 provided laterally in the device case 1.
Insert it inside. In the pillows 30 and 30, the horizontal pin 28 can freely rotate with the rotation of the flat rod 26. Further, as shown in FIGS. 2 and 7, a chain is wound around the tension sprocket 31 and the input sprocket 32 from the output sprocket 11b of the speed reducer 11 which is input from the cradle lifting motor 10 of FIG. It is transmitted to the opened / closed rotary plate 33. An end portion of the push rod 34 is pivotally connected to one place near the outer edge portion of the opening / closing rotary plate 33, and the other end is connected to the spring 3
It is pressed against the horizontal pin 28 via 5.

The spring 35 is provided between the push rod 34 and the horizontal pin 28 in order to adjust the pressing force of the push rod 34 on the horizontal pin 28 depending on the thickness of the film. That is, when the film is thin, the horizontal pin 28 is pressed by the returning force of the spring 35, and the gripping force of the upper and lower binding scissors US / LS is strengthened, so that the thin film can be tightly bound. . When the film is thick, the upper and lower binding scissors US / LS receives pressure in the opening direction due to the thickness of the film,
The spring 35 contracts to release the pressure received from the film in the opening direction of the scissors so that the film is not damaged by giving a strong gripping force. In this way, since the gripping force of the upper and lower binding scissors US / LS can be adjusted according to the thickness of the film, good binding and welding can be performed.

The limit switches 3 are respectively provided at the F-side end position and the R-side end position of the F-R rotating width of the horizontal pin 28.
6.37 are arranged.

The upper and lower binding scissors US, which are constructed as described above
In the opening / closing mechanism of the LS, as shown in FIG. 2, when the push rod pivot of the opening / closing rotary plate 33 is at the position a closest to the F side, the horizontal pin 28 is closest to the F side. Since 27 is closest to the F side, that is, closer to the rotating shaft 23, the upper and lower binding scissors US / LS are in a fully opened state as shown in FIGS. 12 (a) and 14 (a). Then, when the fork 3 reaches the bundling position Y, the lowering of the fork is stopped as described above, and at the same time, the output sprocket 11b of the speed reducer 11 starts driving, and the open / close rotary plate 33 rotates in the arrow direction. At the same time, when the scissors are closed and the film end is nipped, and when it comes to the position b closest to the R side, the upper and lower binding scissors US / LS are shown in FIG. 13 (a) and FIG.
As shown in FIG. 5 (a), all are closed. Further, at this time, the horizontal pin 28 closest to the R side pushes against the R side limit switch 37, and the O of the limit switch 37
The driving of the output sprocket 11b is stopped for a certain period of time by N, the upper and lower binding scissors US and LS are held in a fully closed state, and the film ends are welded by the upper binding scissors US heated by a heater. , Disconnect.

After a certain time required for the welding and cutting, the output sprocket 11b is driven again to rotate the opening / closing rotary plate 33 in the same rotation direction,
Open the scissors, and when you reach the position a closest to the F side,
As described above, the upper and lower binding scissors US / LS are fully opened, and at this time, the horizontal pin 28 presses the limit switch 36 to turn it ON, and based on this, the output sprocket 11b of the speed reducer 11 is driven. To stop. This is the initial state of the binding mechanism.

The driving of the bundling mechanism is started when the spherical object placed on the fork 3 reaches the bundling position Y as described above, that is, the upper end detection sensor 19 detects that the upper end of the spherical object is a spherical object. This is when the lowering of the fork 3 is stopped after a predetermined time has passed since it was detected that the fork 3 passed through the supply hole 2a. In other words, the output sprocket 11b starts to drive and the open / close rotary plate 33 is rotated after a predetermined time has elapsed from the detection by the upper end detection sensor 19. Then, at the same time that the bundling mechanism starts driving, the film supply mechanism described later starts driving and supplies the next spherical film during the bundling operation, so that the fork 3 is again moved to the uppermost position. When it reaches, the film is being fed and immediately the next sphere can be fed.

Next, the processing mechanism of the film end material generated by welding and cutting by the binding mechanism will be described. From the blower 38 shown in FIG. 4 via the blower pipe support portion 39 shown in FIG. 2, the lower binding scissors LS shown in FIG.
The air is blown to the blower port 40 arranged immediately below. The air blown from the air blowing port 40 is directed to the upper part of the spherical object at the bundling position Y, but the air is blown to the heater position so as not to cool the heaters arranged on both sides of the upper bundling scissors US. Absent. On the other hand, at the lower part of the upper plane 2, a scraper 41 is vertically provided with the edge of the spherical object supply hole 2a as the upper end and the position immediately before contacting the upper binding scissors US as the lower end. That is, after the upper binding scissors US is welded and cut, the cut film scraps adhering to the upper part of the heater welding portion of the upper binding scissors US are scraped off by the scraper 41 (opening and closing of the upper binding scissors US It is scraped off by driving), the film end material is blown off by the air blown from the air blower 87, and is sent into the end material chute 42 shown in FIG. 2 so as not to mix with the packaged spherical object. The material is discharged from an end material discharge port 1b formed on the F-side surface of the apparatus case 1 at a position different from 1a.

The scraper 41 is provided only on the welded portion of the upper binding scissors 21 on the side facing the blower port 40 in the upper binding scissors US. This is because the film is welded by contacting the welded portions of the left and right upper binding sickles 21 and 21 and the contact portion of the welded portion on the side where the blower port 40 is disposed has a flat width. Then, on the other hand, scraper 4
The abutting portion of the welded portion on the side where 1 is disposed is sharp, and when both welded portions are brought into contact with each other, the film end material after welding is located above the sharpened welded portion on the side where the scraper 41 is disposed. Only adhere. Therefore, it suffices to dispose the scraper 41 only on the disposition side of the upper binding sickle 21 having the pointed welding portion.

Next, the film supply mechanism will be described. As shown in FIG. 2 and FIG. 9, the film roll mounting bases 42, 42 are laterally projected from the side of the apparatus case 1, and the driven roller 43 is provided between the left and right film roll mounting bases 42, 42.
・ 44 is laid horizontally to rotate back and forth. Side stoppers 45, 45 are mounted on the driven roller 44, which is behind the film in the drawing direction, so as to be slidable to the left and right so that the position can be adjusted. The film roll FR is placed and set such that its lower end is sandwiched between the driven rollers 43 and 44. The side stoppers 45, 45 are
The film roll FR is brought into contact with the left and right ends of the film roll FR so that the film roll FR is fixed at an appropriate position without swinging left and right. Thus, when the film is pulled out from the film roll FR, the driven rollers 43 and 44 follow and rotate, so that the film roll FR also rotates,
The film can be unrolled.

In order to rotate the film roll FR at a good rotation speed, the driven roller 43 has a structure shown in FIG.
As shown in (a) and (b), a belt-shaped brake material 46 made of leather or the like.
Is pressed from above, one end of the brake material is fixed to the side surface of the device case 1, and the other end is connected to the brake adjustment knob 4
The brake adjusting knob 47 is wound up at 7.
The frictional force of the brake material 46 on the driven roller 43 is adjusted by adjusting the tension of the brake material 46 by this operation, and thereby the rotational resistance of the driven roller 43 is adjusted to adjust the film roll. The rotation speed of FR is adjusted.

Next, the film cutting member FC of the film supply mechanism will be described with reference to FIGS. 2 and 8A and 8B. Inside the cutting blade cover 48, a vertically parallel upper support plate 49 and a lower support plate 52 are built in in the left-right direction, and a cutting blade mounting plate 50 is hung vertically from the upper support plate 49 for cutting. Left and right cutting blades 5 on the blade mounting plate 50
1, 51 are fixed in a left-right inclined shape. The lower surface of the lower support plate 52 is provided with a hole through which the cutting blades 51, 51 can pass, and a portion of the cutting blades 51, 51 protruding downward from the holes serves as a blade allowance. In order to adjust the blade allowance width, the upper support plate 49 and the lower support plate 52 are fastened with the blade allowance adjusting screws 53, 53 at the left and right end positions, and the blade allowance adjusting screw 53 is tightened. Depending on the condition, the lower support plate 52
The vertical position of the blade is adjusted, and the blade allowance is adjusted. In addition,
Springs 53a and 53a are mounted around the blade allowance adjusting screws 53 and 53, and at the time of cutting, the lower support plate 52 causes the rubber 5 on the surface of the blade base 54 described later by the returning force of the springs 53a and 53a.
The film placed on the substrate 5 is pressed and held, and the cutting blades 51, 51 project downward from the lower support plate 52 by the contraction of the springs 53a, 53a to cut the film.

On the other hand, below the lower support plate 52, a blade receiving base 54 for receiving the cutting blade 51 at the time of cutting is provided laterally. A groove is formed on the left and right sides of the blade receiving base 54 so that the cutting edge of the cutting blade 51 can be inserted therein, and a lower support plate for fixing the film end portion and descending together with the cutting blade 51 is provided on the surface. As a cushioning member at the time of pushing with 52, rubber 55
Is affixed. A film is placed on the surface of the rubber 55, and the cutting blade 51 is moved up and down for cutting. Further, in the front view as shown in FIG. 8A, the blade receiving base 54 is provided with notches 54a, 54a ...
The lower claw 73b of the clamp 73 of the sliding film pulling member FE, which will be described later, is inserted into the 4a,
The end of the film placed on the rubber 55 is clamped by the clamp 7
3 can be grasped.

The lower surface of the blade receiving base 54 is fixed to a fixed base 56.
Female screw 5 that is fixedly attached to
When the cutting position adjusting handle 58 fixed to the outer end portion of the sliding shaft 57 is screwed to the sliding shafts 57 and 57 via 6a and 56a, as shown in FIG. Rotates, and the female screw 56a slides on the sliding shaft 57 to freely move up and down above the blade receiving base 54 fixed to the fixed base 56 and the blade receiving base 54 with a configuration as described below. The cutting blade 51 fixed to is slid back and forth so that the cutting position can be adjusted. The inner end of the sliding shaft 57 is
As shown in FIG. 2, it is pivotally supported by a fixed plate 65 provided laterally in the device case 1 so as not to move vertically and horizontally, so that the vertical and horizontal positions of the blade receiving base 54 fixed to the fixed base 56 are secured. Is also fixed and only the front and rear position can be adjusted.

Further, as shown in FIG. 2, a cutting position detecting sensor 66 is provided on the R side of the cutting blade cover 48 so as to project therefrom. This is a photoelectric sensor that is turned on when a mark indicating a cutting position written on the film is read, and a film pull-out member FE described later grips an end portion of the film placed on the blade receiving base 54, And pull out the sensor
The sliding is stopped at the point N, and the film is released from the clamp 73 described later and placed on the shutter. That is, the cutting position detection sensor 66 is a sensor for detecting the film opening position for the film drawing member FE.

The vertical movement of the cutting blade 51 will be described.
As shown in FIGS. 8 (a) and 8 (b), a motor mounting plate 59 is hung from the center position of the end of the fixed base 56, and a cutting blade lifting motor 60 is fixedly mounted on this. Then, with the output shaft 60a of the cutting blade lifting motor 60 as the center, the pin 6 is
The rotary plate 61 having the protruding portion 1a is fixed. On the other hand, lifting shafts 62, 62 are vertically slidably fitted to the left and right ends of the fixed base 56, and the upper parts of the lifting shafts 62, 62 are fitted and inserted in the lower support plate 52. The upper end portion is fixed to the upper support plate 49 through the hole. Then, the lifting shaft 62.6
The lower ends of the two are connected by a plate cam support plate 63b, and a long hole 63a is formed in the plate cam 63 which is vertically provided from the center of the plate cam support plate 63b. Board 6
The first pin 61a is fitted into the elongated hole 63a. Thus
The rotating plate 61 is driven by the motor 60 for raising and lowering the cutting blade.
The pin 61a is rotated, and the long hole 63a is rotated along with the rotation.
The plate cam 63 having the pin 61a inserted therein moves up and down, and as the plate cam 63 moves up and down, the elevating shafts 62, 62 slide up and down, and the cutting blade 51 fixed to the elevating shafts 62, 62.・
51 is moved up and down. In one cut,
One rotation of the output shaft 60a of the cutting blade lifting motor 60 causes the plate cam 63 and the lifting shaft 62 to reciprocate up and down, and the cutting blade 51 to reciprocate up and down to complete the cutting.

Regarding the vertical movement of the series of cutting blades 51,
As shown in FIG. 8A, the drive is stopped based on the detection of the cutting blade upper end position detection switch 64 which is disposed near the rotary plate 61 and is switched by contacting the plate cam 63 that moves up and down. Is done. That is, the cutting blade upper end position detection switch 64 is switched when the cutting blade 51 reaches the highest position, and the cutting blade 51 descends, cuts the film, and again rises to the highest position. When reaching, the series of cutting operations is considered to be completed, and the drive of the cutting blade lifting motor 60 is stopped based on the switch switching. Note that the descent of the cutting blade 51 is started by the film drawing member FC described later sliding to draw out the film, and the film cutting position detection sensor 66 described later detecting the film cutting position display mark. Is.

Next, the film pull-out member FE in the film supply mechanism will be described with reference to FIGS. 2, 3, 6 to 8 and 1.
0 and FIG. The film drawing member FE
Is slidably disposed above the upper flat surface 2 on the upper surface of the device case 1. A motor mounting plate 68 is vertically installed in the clamp cover 67, and a motor for clamping is mounted on the motor mounting plate 68. 2 and projecting to the F side in FIG. 2, passing through the motor mounting plate 68 to project the output shaft 69a of the clamping motor 69, and pinning the pin 70a around the output shaft 69a. The rotating plate 70 protruding from the place is fixed, and the pin 70a is inserted into the elongated hole 71a of the plate cam 71. The plate cam 71 is an upper clamp support plate 72.
Is fixed to the upper clamp support plate 72, and the upper claws 73a and 73a are provided on the film cutting member FC side from the lower end of the upper clamp support plate 72.
a ... is projected.

On the other hand, a lifting shaft connecting plate 74 is fixed to the motor mounting plate 68 in the left-right direction.
Vertical sliding shafts 75, 75 are vertically provided from the left and right end portions of the upper and lower sliding shafts 75, and the vertical sliding shafts 75 are inserted into the fitting holes formed on the left and right of the upper clamp support plate 72 to pass therethrough, and the vertical sliding shafts 75 Drive shaft 75.7
The lower end of 5 is fixed to a lower clamp support plate 76 which is horizontally provided in parallel to the lower portion of the upper clamp support plate 72 in the left-right direction. Lower claws 73b, 73b ... Are projectingly provided on the film cutting member FC side of the lower clamp support plate 76, and each pair is vertically paired with the upper claw 73a to form a clamp 73. Is formed.

The opening / closing structure of the clamp having the above structure will be described with reference to FIGS. 10 and 11. The lower clamp plate 76 has a lower sliding shaft 7 than the motor mounting plate 68.
Since it is fixed via 5, 75, etc., the clamp 73
The lower claw 73b is also fixed in the vertical position. On the other hand, in the upper clamp support plate 72 having the upper claws 73 a, the rotary plate 70 is rotated by the driving of the clamping motor 69, and the pin 70 a of the rotary plate 70 causes the long hole 71 of the plate cam 71.
Since it is fitted in a, it reciprocates up and down together with the plate cam 71. In the vertical reciprocating movement, the upper clamp support plate 72 can slide up and down on the fixed vertical slide shaft 75. Thus, the upper clamp support plate 7
The upper claw 73a fixed to the upper and lower ends 2 reciprocates up and down to form a pair with the lower claw 73b.
3 opens and closes.

Next, the back and forth sliding structure of the film pull-out member FE will be described. Sliding members 77, 77 are vertically provided from the left and right end portions of the lower clamp support plate 76, and the sliding members 77 are provided with fitting insertion holes so that the sliding members 77 have a horizontal shape on the left and right sides in the device case 1. On the sliding shafts 78, 78 installed in parallel with each other
The sliding member 77 is slidable on the sliding shaft 78 by mounting 7 on the sliding shaft 78.

On the other hand, as shown in FIG. 3, a clamp transfer motor 80 is attached as shown in FIG. 7 to a motor mounting plate 79 fixedly provided inside the device case 1, and as shown in FIG. , A pair of left and right bearings 81, 81 is fixedly mounted, a drive shaft 82 is rotatably supported between the left and right bearings 81, 81, and sprockets 83, 83 are provided inside the respective bearings 81 on the drive shaft 82. The input sprocket 84 is fixedly mounted on the drive shaft 82 near the central portion, and the chain 85 is wound around the input sprocket 84 from the output sprocket 80a of the clamp transfer motor 80 to clamp the clamp. The drive shaft 82 is driven by the driving force of the transportation motor 80.
Is configured to drive. Then, on the R side inside the device case 1, the driven sprockets 86, 86 are pivoted to the left and right as shown in FIG. 8A, and the transport chains 87, 87 are wound from the sprocket 83 to the driven sprocket 86 in parallel to the left and right. The drive force of the clamp transfer motor 80 drives the transfer chains 87.

The transport chains 87, 87 are arranged in parallel below the sliding shafts 78, 78, as shown in FIG.
As shown in (a), the lower ends of the left and right sliding members 76, 76 are fixed to a part of the conveying chain 87, and the sliding member 77 moves on the sliding shaft 78 as the conveying chain 86 is driven. Lower clamp support plate 7 that slides to vertically suspend the slide tool 77
The entire film pull-out member FE supported by 6 slides.

Further, a cam 77a is provided on one of the sliding members 77 so as to project, and at the position where it comes into contact with the cam 77a on the side of the sliding shaft 78 on the same side, the inside of the device case 1 is A limit switch 89 is fixed on the F side, and on the R side, it is fixed on the side of the female screw 56a of the film cutting member FC, and by operating the cutting position adjusting handle 58, the film is cut. Clamp grip position detection switch 88 that moves integrally with the front-back movement of the cutting member FC
Is provided. When the film pull-out member FE slides in the direction of the film cutting member FC and the cam 77a is pressed against the clamp gripping position detection switch 88 to turn on,
The film pull-out member FE stops sliding and the upper claw 73
a is lowered to close the clamp 73 to grip the film end portion of the clamp cutting member FC placed on the rubber 55, and further, the film drawing member FC slides to draw out the film, When the film cutting position detection sensor 66 detects and turns on the film cutting position display mark, the cutting blade 51 of the film cutting member FC descends and rises to cut the film, and then the upper claw 7
3a rises to release the clamp 73 and the gripped film is set on the upper flat surface 2.

The limit switch 89 is connected to the cam 77.
The position where a is pressed and stopped is the film drawing member FE.
This is a limit switch for stopping the film drawing member at the initial position when the clamp 73 is not gripping the film when the reset switch 6 described later is turned on. Further, it is also used for position detection for urgently stopping and releasing the film drawing member FE when the film cutting position detection sensor 66 is out of order.

The film feeding mechanism is constructed as described above. Next, the flow of film feeding will be described. First, the film is pulled out from the film roll FR, and the blade receiving stand 54 of the film cutting member FC. The end portion of the film is placed on the rubber 55 on the surface, the film pull-out member FE slides toward the film cutting member FC side from the initial position, and the lower claw 73b is inserted into the cutout portion 54a of the blade receiving base 54. When the slide position is reached, the slide stops, the film edge is gripped, and when the film returns to the initial position, the film is cut, and then the clamp 73 is opened to open the film, and the upper flat surface is opened. The film is supplied on the second.
Further, the film end portion which will be the film for the next spherical object packaging is placed on the rubber 55 on the surface of the blade receiving base 54 after cutting, and is then grasped by the clamp 73 and waits for being fed out. Of.

As described above, the film supply mechanism starts driving the bundling mechanism at the same time, that is, a predetermined time after the upper end detection sensor 19 detects the passage of the upper end of the film. When the placed fork 3 stops at the bundling position Y), the electromagnetic clutch of the output sprocket 11b of the speed reducer 11 is turned on to start driving, start gripping drive of the upper and lower bundling scissors US / LS, and carry out the clamp transfer. The motor 79 starts driving, the film pull-out member FE starts sliding on the upper plane, and a series of film supply operations are performed. The sliding of the film drawing member FE does not interfere with the gripping drive of the upper and lower binding scissors US / LS of the binding mechanism at all, and the fork 3 returns to the original position after the binding is completed and the spherical object is discharged. until,
Since there is a sufficient time margin, it is possible to proceed with the series of operations for supplying the film and complete it until the next spherical object is supplied to the fork 3, regardless of whether binding and welding are a little early or late. You can do it.

Finally, the initial state of the device by the push button of the reset switch 6 which is the means for forcibly restoring the initial state will be described. The initial state is a state in which a new spherical object can be newly and promptly supplied to the fork 3 from the spherical object supply hole 2a of the upper flat surface 2. Specifically, in the film supply mechanism, the cutting blade 51 of the film cutting member FC is at the uppermost position, the film drawing member FE is at the initial position, and the fork 3 that is the spherical object receiver is at the uppermost position. The upper and lower binding scissors US / LS of the binding mechanism are in a fully opened state.

That is, when the reset switch 6 is turned on,
First, in the film cutting member FC, the cutting blade lifting motor 60 is driven to drive the cutting blade 51,
When 1 reaches the highest position and the cutting blade upper end position detection switch 64 is switched, the motor drive is stopped and the cutting blade 51 is held at the uppermost position. Regarding the film pull-out member FC, when holding the film,
The film is pulled out as it is, and at the position where the film cutting position detection sensor 66 detects the film cutting position display mark, the driving of the clamp conveying motor 80 is stopped and the clamp 73 is opened. Therefore, when the abnormality is removed and the next spherical object is supplied, the film is set so that the spherical object can be immediately supplied. However, when the film is not gripped or the film cutting position detection sensor 66 itself is out of order, the clamp pull-out member FE is stopped at the initial position based on the turning on of the reset switch 89.

In the binding mechanism, the upper and lower binding scissors US /
When the LS is fully opened and a spherical object is placed on the fork 3 and causes an abnormality, the LS can be removed and the fork 3 can be lifted and lowered as described below. . That is, when the output sprocket 11b is driven by inserting the electromagnetic clutch of the speed reducer 11, the scissors are fully opened, the horizontal pin 28 is closest to the F side, and the limit switch 36 on the F side is switched. , The electromagnetic clutch is disengaged, and the drive of the output sprocket 11b is stopped. In this way, when it is confirmed that the upper and lower binding scissors US / LS are fully opened, the electromagnetic clutch of the speed reducer 12 is put in to drive the output shaft 12b, the fork 3 is raised, and the limit switch 20 is turned off. On the other hand, when it is detected that the fork 3 reaches the uppermost position, the electromagnetic clutch of the speed reducer 12 is disengaged to stop the driving of the output shaft 12b, and the fork 3 is held at the uppermost position. Of.

[0054]

The present invention has the following effects by being configured as described above. First, the drive system of the bundling mechanism and the film supply mechanism is divided into upper and lower parts, and they start driving at the same time without interfering with each other.
That is, since the film for packaging the next spherical object is supplied while binding and welding the spherical object, when the receiver that has released the packaged spherical object is rising again, it is immediately supplied. The next spherical substance can be supplied to the receiver from above the formed film, the continuous packaging work can be smoothly carried out, and the working time can be shortened. Well
Also, passing through the spherical object supply hole 2a that differs depending on the individual spherical object
For the spherical object,
That is, the binding position Y is set. The length of this predetermined time
The vertical position of the binding position Y can be adjusted by adjusting
It became Noh. Also, the tightness of the wrapped film
It became possible to use it to adjust the condition. Immediately
When tight packing is required, move the binding position Y upward.
In order to shorten the predetermined time, while loose packaging
When requesting the binding position Y,
Can be set downward.

In addition, when an abnormal situation occurs, by using the initial state forced return means, each mechanism of the apparatus returns to the initial state, and after eliminating the cause of the abnormality, a new spherical object is immediately supplied. Then, the packaging work can be started.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a spherical object packaging device.

FIG. 2 is likewise an internal side view.

FIG. 3 is a partial internal side view showing the configuration of a transport chain of the film drawing member and a limit switch for detecting the front and rear sliding end portions.

4 is a sectional view taken along line AA in FIG.

5 is a sectional view taken along line BB in FIG.

FIG. 6 is an internal front view of the lifting and lowering mechanism of the spherical object receiver as viewed from the F side in FIG.

FIG. 7 is an internal front view of the binding mechanism as viewed from the F side in FIG.

8 (a) is an internal front view of the film cutting member as viewed from the R side in FIG. 2. FIG. (B) is a partial side view showing the raising / lowering structure of the cutting blade in (a).

9 (a) is a front view of the film roll mounting stand as seen from the R side in FIG. 2. FIG. (B) is a side view of (a).

10 (a) is a front view of the film pull-out member when the clamp is opened as viewed from the R side in FIG. (B) is a side view of (a).

FIG. 11A is a front view of the film pull-out member when the clamp is closed as in FIG. (B) is a side view of (a).

FIG. 12 (a) is a plan view of an upper binding sickle. (B) is a top view at the time of opening the upper binding scissors.

FIG. 13 (a) is a plan view of a lower binding sickle. (B) is a top view at the time of opening the lower binding scissors.

FIG. 14 (a) is a plan view of an upper binding sickle. (B) is a top view at the time of closing the upper binding scissors.

FIG. 15 (a) is a plan view of a lower binding sickle. (B) is a top view at the time of closing the lower binding scissors.

[Explanation of symbols]

FR film roll FC film cutting member FE film drawing member US upper unity scissors LS Lower unit scissors 1 device case 2 upper plane 2a Spherical object supply hole 3 forks 6 reset switch 21 Upper united sickle 22 Lower united sickle 51 cutting blade 73 Clamp

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65B 11/00-11 / 58,25 / 04

Claims (2)

(57) [Claims] 1. A film supply mechanism for drawing a film by a drawing member, cutting the film drawn by a cutting member to supply the film, and a receiver elevating mechanism for elevating a receiver on which a spherical object is mounted. And a binding mechanism for gripping the film on the spherical object at the binding position , welding and cutting the film, and placing the spherical object on the film supplied by the film supply mechanism to reach an appropriate binding position. An operation of descending and bundling, welding and cutting the film with a bundling mechanism above the spherical object,
The film supply mechanism simultaneously performs the operation of supplying the film for spherical object packaging to be supplied next to the supply position.
And detect that the upper end of the spherical object passes.
An upper end position detection sensor is provided, and the upper end position detection sensor
After a predetermined time from the detection of the passage of the upper end of the
When reaching the setting position, the bundling mechanism and the film feeding mechanism are driven.
A spherical object packaging device characterized by being configured to start moving . 2. The spherical object packaging apparatus according to claim 1, wherein at the time of an abnormality, the scissor-like member of the binding mechanism is opened by operating the reset switch , and the pull-out member of the film supply mechanism returns to the pull-out end position and is cut. A spherical object packaging device characterized in that a member is displaced to a non-cutting position, and a receiving body elevating mechanism is forcibly returned to an initial state in which it is raised to an uppermost position.