JPH0433685B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention utilizes intermittent rotation of a horizontally rotating bottle transfer disk to sequentially receive bottles from a predetermined carry-in path into recesses on the periphery of the disk, thereby stopping the recesses. The present invention relates to a transmission device for a bottle inspection machine that inspects bottles in a predetermined inspection section and discharges the inspected bottles from a recess to a predetermined carry-out path.

BACKGROUND ART In a bottle inspection machine having the above mechanism, a plurality of recesses for receiving bottles in a bottle transfer disk are formed at equal intervals on the circumference of the disk, and each time the bottle transfer disk rotates intermittently, a plurality of recesses for receiving bottles are formed. It is designed to move by one pitch.
The size of the recess is determined depending on the diameter of the body of the bottle to be inspected.

Therefore, when one bottle inspection machine is to be used for inspecting several types of bottles of different sizes, it is only necessary to replace it with a bottle transfer disk having a recess sized to suit each type of bottle. In recent years, with the increasing demand for small bottles, there has been a demand for increased testing capacity.
There is a growing need for faster bottle transfer.

However, in the conventional method, when inspecting small bottles, a bottle transfer disk with the same recess pitch as for large bottles is used, so in order to improve the inspection capacity for small bottles as described above, it is necessary to increase the inspection capacity even more than for large bottles. It is necessary to increase the transfer speed, but in this case, the influence of inertia on the small bottles discharged into the discharge path is much greater than in the case of large bottles. There are inconveniences such as problems with the transfer of bottles, and errors in the automatic removal timing of defective bottles. Further, in the case of small bottles, the recesses in the bottle transfer disk may be small, but if the pitch between the recesses is the same as that for large bottles, the recesses will be too wide and the transfer efficiency will be extremely poor.

As a way to inspect large and small bottles using one bottle inspection machine without causing such problems,
For example, in the case of a small bottle, it is conceivable to reduce the pitch between the recesses of the bottle transfer disk to 1/2 of that for a large bottle, and to reduce the rotational speed of the bottle transfer disk to 1/2 of that for a large bottle.

However, with this type of conventional bottle inspection machine,
The drive shaft and the rotating shaft of the bottle transfer disk are directly connected, and in order to perform the above-mentioned deceleration, the drive source itself must be equipped with a speed change mechanism.
In addition to being expensive, the intermittent rotation makes it difficult to variably adjust the speed so that the recess stops accurately at a predetermined inspection section.

Problems to be Solved by the Invention The present invention solves the above-mentioned problems in the conventional example, and solves the above-mentioned problems in the conventional example. The rotation speed of the bottle transfer disk can be easily changed depending on when the transfer disk is rotated intermittently.
To provide a transmission device for a bottle inspection machine that is simple in configuration and accurate in operation.

Means for Solving the Problems The transmission device for the bottle inspection machine of the present invention uses intermittent rotation of a horizontally rotating bottle transfer disk to sequentially receive bottles from a predetermined carry-in path into recesses on the periphery of the disk. Bottle inspection is carried out at the designated inspection section where the facility stops,
In a bottle inspection machine configured to discharge inspected bottles from a recess to a predetermined discharge path, a connecting ring having an engaging protrusion on the inner periphery and fixed to the rotating shaft of the bottle transfer disk in a vertically adjustable manner. and a first groove having an engaged groove on its outer periphery that is provided on a drive shaft disposed coaxially with the rotating shaft and that is capable of engaging with the engaging protrusion when the connecting ring body is fixed in the upper position side. a connecting disk, and an engaged groove that is located below the connecting disk and is rotatably attached to the drive shaft, and that can be engaged with the engaging protrusion when the connecting ring is fixed in the lower position. The second connecting disk has an outer circumference thereof, and a reduction gear mechanism that transmits the rotation of the drive shaft to the second connecting disk.

By fixing the connecting ring above the rotating shaft, the rotation of the drive shaft is directly transmitted to the bottle transfer disk via the first connecting disk on the drive shaft side and the connecting ring. On the other hand, by fixing the connecting ring to the lower position side of the rotating shaft, the rotation of the drive shaft is reduced through the reduction gear mechanism, the second connecting disk on the drive shaft side, and the connecting ring to transfer bottles. transmit to the disc.

Embodiment An embodiment of the present invention will be described based on FIGS. 1 to 10.

As shown in FIG. 2, the transmission of this embodiment has a plurality of (eight in the figure) bottle receiving recesses 1a arranged at equal intervals.
. . . is formed on the circumference of the disk is intermittently horizontally rotated in the direction of the arrow mark A to bring it to one of the stop positions of the recess 1a in the rotation range of the disk 1. Bottles sent from the carry-in path 2 extending toward the destination are sequentially received into each of the recesses 1a, and each inspection section _B1 , which is set at another stopping position of the recess 1a,
B ₂ , ... carried out various bottle inspections. An ejection path 3 extending toward the other one of the stop positions of the recess 1a
The present invention is applied to a bottle inspection machine that discharges inspected bottles from the recess 1a.

FIG. 1 is a cross-sectional view showing a portion of the bottle inspection machine equipped with a transmission device, in which the rotating shaft 4 of the bottle transfer disk 1 is supported in a vertical position by bearings 5 and 6, and the top end of the rotating shaft 4 is supported in a vertical position by bearings 5 and 6. A hub 4a is formed into which the disc 1 is removably fitted. The housing 7 on which the bearings 5 and 6 are mounted is fixed by bolts 9 to a fixed base plate 8 which is arranged horizontally below the bottle transfer disk 1 so as to be parallel to the bottle transfer disk 1. There is. Further, the fixed base plate 8 is fixed to a frame (not shown) of this bottle inspection machine.

In FIG. 1, reference numeral 10 denotes a rotary drive source, which is installed below the rotary shaft 4 so that its drive shaft 11 is in a vertical position facing the rotary shaft 4 coaxially. 12 is a bolt that directly connects the base shaft portion 11a of the drive shaft 11 and the connecting shaft portion 11b.

A torque limiter 13 is attached to the rotating shaft 4, and an annular bearing holder 15 is fastened to the lower end of the torque limiter 13 with bolts 14. The upper end of the drive shaft 11 is supported by a bearing 16 mounted on the bearing holder 15 . At one location on the outer periphery of the bearing holder 15, a vertically engaged groove 15a is formed as shown in FIG. ,1
5c is formed.

Reference numeral 17 denotes a connecting ring body which is fitted onto the outer periphery of the bearing holder 15 and fixed so that its position can be adjusted up and down, and on its inner circumferential surface there are two engagement protrusions 1 on the upper and lower sides.
7a and 17b are provided. The respective engaging protrusions 17a and 17b are both tightened and fixed to the connecting ring body 17 with bolts 18 and 19, and the upper engaging protrusion 17a engages with the engaged groove 15a of the bearing holder 15, so that the bearing holder The connecting ring body 17 can be slid up and down relative to the connecting ring body 15. Then, the bolt 18 for tightening and fixing the upper engagement protrusion 17a is inserted into the upper and lower screw holes 15a, 15 of the engagement groove 15a of the bearing holder 15.
The fixing position of the connecting ring body 17 can be selected depending on whether it is screwed into the connecting ring body 17.

As shown in FIG.
d are tightened and fixed with bolts 20 and 21 to be integrated.

On the other hand, the connecting shaft portion 11b of the drive shaft 11 includes:
A connecting disk 22 having an outer diameter slightly smaller than the inner diameter of the connecting ring body 17 is integrally formed. As shown in FIG. 4, a vertically engaged groove 22a is formed at one location on the outer periphery of the connecting disk 22, and when the connecting ring body 17 is fixed to the upper position side with respect to the bearing holder 15. , the lower engaging protrusion 17
b can be engaged with the engaged groove 22a.

23 is a frame member of the reduction gear mechanism 24, a bearing 25 is mounted on the upper part of the frame member, and a hub member 26 fitted into the connecting shaft portion 11b of the drive shaft 11 is attached to the bearing 2.
It is rotatably supported by 5. The upper end of this hub member 26 has an outer circumferential surface that is connected to the connecting ring 17.
A connecting disk 27 having an outer diameter so as to be in sliding contact with the inner circumferential surface of the connecting disk 27 is tightened and fixed by bolts 28, and this connecting disk 27 is concentric with the drive shaft 11 below the connecting disk 22 that is integrated with the connecting shaft portion 11b. It is designed to rotate in a shape. As shown in FIG. 4, a longitudinally engaged groove 27a is also formed at one location on the outer periphery of the connecting disk 27.
When the bearing holder 15 is fixed to the lower position side, the lower engaging protrusion 17b can be engaged with the engaged groove 27a.

The reduction gear mechanism 24 includes an input helical gear 29 fixed to the drive shaft 11, a large-diameter intermediate helical gear 30 that meshes with the gear 29, a small-diameter intermediate helical gear 31, an output helical gear 32 that meshes with the gear 31, and the like. The input helical gear 29 has a lower end hub supported by a bearing 33 attached to the lower part of the frame member 23. The intermediate helical gears 30 and 31 are connected to the frame member 2.
Bearings 34 and 35 mounted on the upper and lower parts of 3, respectively.
It is secured to a vertical shaft 36 which is supported by.
The output helical gear 32 is tightened and fixed to the lower end portion of the hub member 26 by bolts 37, and is integrally connected to the rotation shaft of the gear 32 by the aforementioned connecting disk 27.
is made to rotate. The hub member 26
A bearing 38 is provided between the connecting shaft portion 11b of the drive shaft 11 and
A bearing 39 is interposed between the hub of the output helical gear 32 and the upper end hub of the input helical gear 29.

The torque limiter 13 is connected to the drive hub 4 having an L-shaped cross section and connected to the bearing holder 15.
0, the rotating shaft 4 has a flange portion 41a at the lower end;
A drive boss 41 fixed to the drive boss 41, a ball bearing 42 received by the flange portion 41a of the boss 41, a taper thrust ring 43 that presses against the ball bearing 42 from above, and this ring 43.
an overload detection panel 44 mounted on the upper side of the motor, a torque spring 45 that urges the panel 44 downward, and a pressure nut 46 that is screwed onto the upper part of the drive boss 41 to receive the torque spring 45. It consists of a drive shaft 11 and a rotating shaft 4.
It also functions as a coupling ring. When the rotational torque is within the limit, the ball bearing 42 is pressed into contact with the groove 40a provided on the inner periphery of the drive hub 40 as shown in FIG. The rotation of the drive shaft 11 is caused by the rotation of the rotation shaft 4.
On the other hand, in the event of an overload, the ball bearing 42 disengages from the groove 40a and moves toward the center of rotation as shown in FIG. 7 while pushing the taper thrust ring 43, thereby causing the overload detection panel 44 to move upward. It is starting to shift to A limit switch 47 is arranged above the rotation range of the overload detection panel 44, and an operating piece 44a provided on the overload detection panel 44 is activated by the upward movement of the overload detection panel 44 due to overload. It acts on the limit switch 47 to turn it on, thereby stopping the drive source 10.

Intermediate helical gear 3 of the reduction gear mechanism 24
0 and 31 are upper and lower two split gear parts 30, respectively.
a, 30b and 31a, 31b are superimposed and integrated into one structure. For example, regarding the large-diameter intermediate helical gear 30, as shown in FIG. 8a, the upper and lower divided gear parts 30a and 30b are integrated by tightening and fixing them with bolts 49 with a disc spring 38 interposed therebetween. Therefore, for example, from the state shown in FIG. 8a in which the corresponding gear peaks 30a ₁ and 30b ₁ of the upper and lower split gears 30a and 30b are aligned, the tightening strength of the bolts 49 is changed to change the tightening strength between the split gears 30a and 30b. By adjusting the gap width, the upper and lower split gears 30 can be formed as shown in FIG. 8b.
By relatively shifting the gear peaks 30a ₁ and 30b ₁ between a and 30b, the valley width X of the gear can be changed. Similarly, as shown in FIG. 1, the small-diameter intermediate helical gear 31 is integrated with a bolt 50 with a disc spring (not shown) interposed between the upper and lower divided gear parts 31a and 31b.

In a machine like this bottle inspection machine, which sequentially stops each recess 1a of the bottle transfer disk 1 at a predetermined inspection section B ₁ , B ₂ . . . by intermittent rotational drive,
In order to accurately position the recess 1a in each inspection section, bump crashes must be avoided as much as possible, but in this embodiment, the gear valley width X of each intermediate helical gear 30, 31 can be freely adjusted as described above, so that deceleration is reduced. It is possible to prevent backlash from occurring in the gear mechanism 24.

In addition, in the bottle inspection machine of this embodiment, as shown in FIG.
A guide roller 52 is provided with the rotation axis 51 vertically disposed near the entrance of the bottle transfer circle, and a guide plate 53 having an arcuate guide edge 53a concentric with the guide roller 52 is installed on the outside of the guide roller 52 to stop the bottle transfer circle on the carry-out path 3. The recess 1a of the plate 1 and the arcuate guide edge 53a are arranged to intersect with each other, and the inspected bottle C discharged from the recess 1a is sandwiched between the guide roller 52 and the guide plate 53, and the guide roller 52 By rotationally driving in the direction of the arrow mark, the material is smoothly guided to the discharge path 3 and discharged. Therefore, it is possible to prevent inconveniences such as when the discharged inspected bottle C falls over and disturbs the operation timing of the ejector in the subsequent stage that automatically removes defective products.

In this bottle inspection machine, as shown in FIG. By screwing into the screw hole 15b and fixing it in the upper position side, the lower engagement protrusion 17b of the connecting ring body 17 connects to the connecting disk 2 integrally formed with the connecting shaft portion 11b of the drive shaft 11.
2, thereby transmitting the rotation of the drive shaft 11 to the rotating shaft 4 at a ratio of 1:1. On the other hand, as shown in Fig. 10, the bottle transfer disk 1 for small bottles with a small pitch between the recesses (in this case, the pitch between the recesses is 1/2 of that in Fig. 2) is rotated intermittently. When driving, the bolts 18 of the connecting ring body 17 are screwed into the screw holes 15c of the bearing holder 15 and fixed in the lower position, so that the lower engaging protrusion 17b of the connecting ring body 17 can reduce speed. Gear mechanism 24
The rotation of the drive shaft 11 is thereby reduced to 1/2 by the reduction gear mechanism 24 and transmitted to the rotation shaft 4.
Therefore, in the case of this 1/2 decelerated rotation, each recess 1a of the bottle transfer disk 1 shown in FIG. 10 will also stop between each inspection section shown in FIG. 2. At this time, the amount of movement of the bottle in one intermittent operation is 1/2 that of double speed drive, so
The influence of inertia does not significantly affect the bottles discharged into the discharge path 3, and the bottles are discharged stably and smoothly.

Effects The transmission device for the bottle inspection machine of the present invention has the above-described configuration, and by fixing the connecting ring above the rotational axis of the bottle transfer disk, the engaging protrusion on the inner periphery of the connecting ring is fixed. The rotation of the drive shaft is directly transmitted to the rotating shaft by engaging with the engaged groove on the outer periphery of the first connecting disk provided on the drive shaft, while the connecting ring is connected to the rotating shaft of the bottle transfer disk. By fixing to the lower position side, the engaging protrusion of the connecting ring engages with the engaged groove on the outer periphery of the second connecting disk that is linked to the reduction gear mechanism, and the rotation of the drive shaft is decelerated to the rotating shaft. Therefore, depending on when the bottle transfer disk with a large pitch between recesses is driven to rotate intermittently, and when the bottle transfer disk for small bottles with a small pitch between recesses is driven to rotate intermittently, the bottle transfer is The rotation speed of the disk can be easily changed, and in the case of small bottles in particular, the transfer speed can be reduced to ensure stable and smooth discharge. The recess can be accurately stopped at each inspection section.

In addition, as in the embodiment, the reduction gear mechanism is configured with a helical gear, and one of the meshing gears is made by overlapping and integrating two gear parts so that the interval can be adjusted. This has the effect that the gear valley width can be adjusted to a large extent, the bumps that are inconvenient to intermittent rotation drive can be significantly reduced, and the positioning of the bottle inspection machine can be made more accurate.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention;
Fig. 2 is a schematic plan view of a bottle inspection machine to which the embodiment is applied, Fig. 3 is a front view showing a partial cross section of the embodiment, Fig. 4 is an exploded perspective view of the main part of the embodiment, 5
The figure is a perspective view of half of the connecting ring body, Figure 6 is a front view showing a cross section of half of the torque limiter, Figure 7 is a cross-sectional view of half of the torque limiter during overload, and Figures 8a and b are respectively An explanatory diagram of the gear valley width adjustment function of the intermediate helical gear, FIG. 9 is a schematic plan view showing the bottle discharge guide mechanism of the conveyance path in the bottle inspection machine of the embodiment, and FIG. FIG. 4... Rotating shaft, 10... Rotating drive source, 11...
Drive shaft, 15...Bearing holder, 15b, 15c
...Screw hole, 17...Connection ring body, 18...Bolt, 22...Connection disk (first), 22a...
Engaged groove, 24... Reduction gear mechanism, 27... Connection disk (second), 27a... Engaged groove.

Claims (1)

[Claims] 1. By intermittent rotation of the horizontally rotating bottle transfer disk,
A bottle inspection machine that sequentially receives bottles from a predetermined carry-in path into a recess on the periphery of the disk, performs bottle inspection at a predetermined inspection section where the recess stops, and discharges the inspected bottles from the recess to a predetermined carry-out path. , a connecting ring body having an engaging protrusion on its inner periphery and fixed to the rotating shaft of the bottle transfer disk in a vertically adjustable manner; and a connecting ring body provided on a drive shaft disposed coaxially with the rotating shaft and connected a first connecting disk having an engaged groove on its outer periphery that can be engaged with the engaging protrusion when the ring body is fixed in the upper position; and a first connecting disk located below the connecting disk and rotating with the drive shaft. a second connecting disk that is freely pivoted and has an engaged groove on its outer periphery that can be engaged with the engaging protrusion when the connecting ring body is fixed in the lower position; A transmission device for a bottle inspection machine, characterized in that it is equipped with a reduction gear mechanism that transmits transmission to two connected discs. 2. The reduction gear mechanism consists of a helical gear,
2. The transmission device for a bottle inspection machine according to claim 1, wherein one of the meshing gears is formed by overlapping and integrating two gear parts so that the interval can be adjusted.