Bottles and similar containers often must undergo a cleaning of some sort prior to their actual use. Particularly does this represent the situation where these items will hold some material consumable by animals, especially humans. In such cases, the bottles will experience a multiplicity of cleaning stages. In one of the stages, an actual cleaning solution will contact the containers' interiors. This serves to provide assurance that undesirable substances will undergo removal from the bottles. Subsequently, the bottles will experience a rinsing stage. This removes the cleaning solution itself from the bottles.
One particularly effective manner of carrying out the cleaning and rinsing involves inverting the bottles during each of the stages. The machinery then sprays the appropriate liquid into the containers while upside-down.
Inverting the bottles produces a number of desirable effects. First, it sprays liquids with the minimum level of contaminating agents on the bottles' interiors. Second, it provides a continuous spray of fresh liquid to remove the contaminants. Third, it allows the force of the spray itself contacting the interior surface to assist in the contaminant removal.
However, passing the containers through two separate washing areas (one of which may simply rinse the bottles) poses its own set or problems. One cause for concern involves the extensive floor area for two separate cleaning machines. Another requires a facile transfer between the two pieces of equipment.
Some prior efforts have inverted the bottles and then sent them through a plurality of wash stations before releasing them. U.S. Pat. No. 3,129,713 to P. C. Read, U.S. Pat. No. 4,010,774 to O. H. Fischer and U.S. Pat. No. 4,154,624 to A. Wahl et al. invert, submerge, and spray bottles to clean them. The bottles sit in pockets during the process. The submersion and pockets may leave cleaning solution on the bottles' exteriors after cleaning. Improved multi-pass cleaning equipment portends substantial advantages and savings to those filling and using containers.
An improved bottle cleaner includes an intake area for receiving bottles in an upright orientation. A first moving device will grip these bottles while they sit in the upright orientation. The first moving device will then place the bottles, while gripped, into an inverted orientation and move them, while in the inverted orientation, through a first cleaning area. With the bottles in the first cleaning area, the moving device applies a first cleaning solution to them.
After the first cleaning solution is applied to the bottles, the first moving device moves the bottles out of the first cleaning area and afterwards returns them to the upright orientation. At that time, the first moving device releases the gripping of the bottles.
The bottle cleaner also includes an intermediate area for receiving the bottles, while in the upright configuration. This occurs after the bottles have moved out of the first cleaning area.
While the bottles remain in the upright orientation and in the intermediate area, a second moving device, forming part of the bottle cleaner, then serves to grip the bottles and place them, while gripped and after having moved into the intermediate area, into an inverted orientation. The second moving device then moves the bottles, while in the inverted orientation and after having moved into the intermediate area, through a second cleaning area.
While the bottles remain in the second cleaning area, the second moving device applies a second cleaning solution to them. Afterwards, the second moving device moves the bottles out of the second cleaning area. After having moved the bottles out of the second cleaning area, the second moving device returns the bottles to the upright orientation. After having accomplished this task, the second moving device releases the gripping of the bottles.
An improved method of cleaning bottles commences with receiving bottles in an upright orientation. It then proceeds to gripping the bottles, while in this upright orientation, with a first gripper. The bottles are then placed, while gripped, into an inverted orientation. The bottles, while in the inverted orientation, are then moved through a first cleaning area in which a first cleaning solution is applied to the bottles.
After the first cleaning solution is applied to the bottles, they are moved out of the cleaning area. After the bottles have been thusly moved, they are returned to the upright orientation. While the bottles are in the upright orientation after moving out of the first cleaning area, the gripping by the first gripper of the bottles is released.
After the bottles have been released from the gripping by the first gripper, they are gripped with a second gripper while in the upright orientation. While gripped by the second gripper, the bottles are again moved into an inverted orientation. They are then, while in the inverted orientation and while gripped by the second gripper, moved through a second cleaning area. While in the second cleaning area, a second cleaning solution is applied to the bottles.
After the second cleaning solution is applied to the bottles, they are moved out of the second cleaning area. They are then returned to then upright orientation. To complete the process, with the bottles in the upright orientation and after they have moved out of the second cleaning area, the gripping of the bottles by the second gripper is released.
As seen in
As the bottles 21 move to the right in
The bottles 21 then reach the left side of the cleaner 20 as seen in the figures. The belts 24 and 25 return the bottles to the upright orientation and place then on the conveyor 42. The conveyor, in turn, takes the bottles to the right and into the space 43 between the second set of belts 44 and 45. The belts 44 and 45, similar to the first set of belts 24 and 25, grab the bottles, invert them, and send them over the spray 49 (as seen in
Clearly, the spacing 28 between the belts 24 and 25 should have the appropriate width to firmly hold the bottles 21 without damaging them. Similarly, the same holds true for the spacing 43 between the belts 44 and 45. Further, since the same bottles 21 travel in the space 43 as in the space 28, these two spaces should have generally the same magnitude. Additionally, since each of the respective belt pairs 24 and 25 on one half of the machine and 44 and 45 on the other holds the bottles, inverts them, passes them through the respective sprays 37 and 49, and returns them upright, the spacings 28 and 43 between them should remain relatively uniform throughout the entire journey of the bottles 21 while in their grasp. Additionally, the utility of the cleaner 20 undergoes significant enhancement if it can accommodate bottles of different widths while maintaining the uniformity of the spacings 28 and 43 discussed above.
The rails 52 and 54 and the motor 55 connect to the upper and lower blocks 62 and 64 as seen in
Similarly, at the right end 36 of the cleaner 20 as seen in
To maintain the belt in a vertical orientation, all four shafts 69, 70, 83, and 84 should all move in unison by equal amounts. Providing a single control for all four shafts will help achieve this goal. Accordingly, the hand crank 91 connects to the gear box 92. Turning the crank 91 rotates the shaft segments 93 and 94 which connect through the gear boxes 95 and 96 (as best seen in
Additionally, the chain 101 couples the shafts 69 and 70 to each other so that the latter rotates in synchronization with the former. The chain 102 achieves the same result to rotate the shaft 84 with the shaft 83. Thus, turning the hand crank 91 causes equal rotation of the four shafts 69, 70, 83 and 84 in the same direction by the same amount. This causes the chain 23 to remain vertical and move toward or away from the near side of the cleaner 20.
A similar analysis applies to the chain 25, However, it couples to the shaft segments 105 and 106 of the shafts 69 and 70, respectively. However, the shaft segments 105 and 106 have the reverse thread from the segments 66 and 68, respectively. Thus, the chain 25 moves by the same amount but in the reverse direction from chain 24. Similar remarks apply to the right side of the cleaner 20 as seen in FIGS. 1,3 and 4.
Accordingly, rotating the hand crank 91 in one direction will cause the chains 24 and 25 to move, for example, towards each other by equal amounts. This will allow the cleaner to handle smaller bottles. Moving the crank 91 in the opposite direction moves the chains 24 and 25 away from each other to handle larger bottles.
Naturally, the chain set 44 and 45 also couples to the shafts 69, 70, 83 and 84 in exactly the same fashion as the chain set 24 and 25. As the chains 24 and 25 move together for smaller bottles, the chains 44 and 45 move together by the same amount for the same bottles. Likewise, the chains moving 24 and 25 moving away from each other will be accompanied by the chains 44 and 45 moving away by the same distance for the same larger bottles. Either motion only involves turning the single hand crank 91 in one direction or the other.
Changing the setting of the gripper potentiometer 141 alters the input voltage to the VFD's 131 to 134. This causes them to change the frequency (but generally not the voltage) they provide to their respective motors 55, 121, 122, and 123. This changes the speed at which the motors operate. But, they still operate at the same rotational speed as each other since they all receive an a.c. voltage of the same magnitude and frequency. This results in the motors 55, 121, 122, and 123, and thus their chains 24, 25, 44, and 45, changing their speed, but continuing to operate at the same speed as each other as desired to facilely handle the bottles.
Also of interest in
As with the cleaner 20 of the earlier figures, the three-stage cleaner 220 presents the hand crank 250. Moving the crank 250 simultaneously adjusts the distance between the two gripper chains of each of the three chain sets 225, 236, and 243. As before, the distance between the two chains of each of the three sets remain the same as each other during the adjustment process to accommodate bottles of different sizes. As seen especially in
As seen in
The cleaner generally 320 in
The cleaner generally at 330 in
The cleaner 350 in
The present application constitutes a divisional application and, thus, claims the benefit of the U.S. nonprovisional patent application Ser. No. 11/601,570., filed on Nov. 17, 2006, and issued as U.S. Pat. No. 7,803,232, which, in turn, claimed the benefit of the filing of the U.S. provisional patent application Ser. No. 60/737,495 filed on Nov. 17, 2005.
Number | Name | Date | Kind |
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3108682 | Zipper | Oct 1963 | A |
3129713 | Read | Apr 1964 | A |
3605768 | Golding | Sep 1971 | A |
4010774 | Fischer | Mar 1977 | A |
4154624 | Wahl et al. | May 1979 | A |
Number | Date | Country | |
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20110083706 A1 | Apr 2011 | US |
Number | Date | Country | |
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60737495 | Nov 2005 | US |
Number | Date | Country | |
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Parent | 11601570 | Nov 2006 | US |
Child | 12924481 | US |