US3743076A

US3743076A - Bottle orientor

Info

Publication number: US3743076A
Application number: US00168089A
Authority: US
Inventors: C Hooks
Original assignee: Individual
Current assignee: Individual
Priority date: 1971-08-02
Filing date: 1971-08-02
Publication date: 1973-07-03
Anticipated expiration: 1990-07-03

Abstract

A mechanical bottle orientor is disclosed in which bottles, having their necks disposed in either of two directions and aligned horizontally are tipped to be oriented with their bottoms downwardly and deposited in pockets in a rotary table in position to be filled.

Description

United States Patent [191 Hooks BOTTLE ORIENTOR [76] Inventor: Chester D. Hooks, 1381 E. Hoyt Avenue, St. Paul, Minn. 55106 [22] Filed: Aug. 2, 1971 [211 App]. No.: 168,089

52 us. Cl. 198/33 AB, 198/43 B 51 lm. Cl. 865g 47/24 [58] Field of Search 198/33 AB, 33 AA, 198/33 R, 33 AD; 193/43 A, 43 B, 43 c, 43

[56] References Cited UNITED STATES PATENTS 3,587,804 6/1971 Marenco .1 193/43 B 1 51 July 3,1973

4/1963 Fibishl 198/33 AA 9/1971 Schulz 193/43 B Primary ExaminerRichard E. Aegerter Attorney-Gunnar A. Gustafson, Jr.

[57] ABSTRACT A mechanical bottle orientor is disclosed in which bottles, having their necks disposed in either of two directions and aligned horizontally are tipped to be oriented with their bottoms downwardly and deposited in pockets in a rotary table in position to be filled.

5 Claims, 7 Drawing Figures PATENTEUJUL3 ms 3.743.076

SHEEI 1 OF 3 I INVENTOR. CHESTER 0. HOOKS ATTORNEY PATENIEUJULB ms I Q 3.743.076

sum ear 3 FIG. 6

INVENTOR.

CHESTER D. HOOKS ATTORNEY PATENTEDJUL3 I975 sumaurs' FIG. 7

ATTORNEY BOTTLE ORIENTOR Various devices for orienting bottles are well known; however, with the advent of great quantities of plastic bottles, particularly plastic bottles of small or medium dimensions, the rapid orientation of these bottles with their openings upright has proved to be a problem because of the extreme light weight of the bottles and the rapid operation of the bottling machines.-

This invention is directed toward a bottle orienting device in which bottles with their necks disposed in either of two directions with their longitudinal axis horizontal are oriented with their longitudinal axis vertical and with their bottle opening or necks disposed upwardly.

One object of the invention is to provide such a bottle orienting device which insures the positive orienting of such bottles at a rapid rate.

Another of the objects of the invention is to overcome the sometimes erratic performance of previous devices which when used on light weight plastic bottles often require one or more attendants to correct mistakes made by the orientor.

These and other objects of the invention will be apparent to those skilled in the art from the following descrition and drawings in which:

FIG. 1 is a perspective view of the device with portions broken away,

FIG. 2 is a side elevation taken generally along the line 2-2 of FIG. 1,

FIG. 3 is an enlarged view of the chute taken along line 3-3 of FIG. 2,

FIG. 4 is an enlarged view of a portion of the receiving turntable,

FIG. 5 is a partly schematic view of the upper end of the chute taken from one side,

FIG. 6 is a view taken along the line 6-6 of FIG. 5, and

FIG. 7 is an enlarged view in perspective of the chute.

As shown in FIG. 1, the device comprises a base frame 10 supporting on two of its cross-braces 12 and 14 a prime mover such as the electric motor 16. The motor 16 drives a pulley 18 connected by the belt 20 to the pulley 22 fixed to the main drive shaft 24. The motor 16 drives the pulleys and belts in a direction indicated by the

arrows

26 and 28 in FIGS. 1 and 2. The operation of the motor through the main drive shaft 24 operates the turntable 30 in the direction indicated by the arrow 32. This is accomplished by means of a pair of

beveled gears

34 and 36 in mesh with each other and fixed respectively to the shaft 24 and the shaft 38. The table 30 is suitably supported by the central shaft 38 mounted in bearings (not shown). The table 30 is arranged to receive oriented bottles from the bottom of a chute generally indicated at 40 in a manner more fully described hereinafter.

As best shown in FIG. 2, the upper portion 42 of the frame 10 supports a flat vertical member 44 extending upwardly from the base 10 adjacent to the periphery of the rotary table 30. Mounted to the vertical member 44 is a sub-frame 46. The sub-frame 46 supports the chute 40 and is adjustable vertically with respect to the fixed frame member 44 by means of bolts 48, 48'. The bolts 48, 48' pass through slots 50, 50' respectively in the sub-frame 46 and into tapped holes in the frame member 44, thus permitting the vertical adjustment of the sub-frame 46 with respect to the frame 44 and the table 30. In this way bottles of different heights may be accomodated, so long as bottles of different heights are not intermixed in any particular operation with the single adjustment of the sub-frame 46 with respect to the table 30 and the frame member 44. That is to say that the sub-frame 46 can be adjusted for any height. In FIG. 2 certain upper portions of the chute members, hereinafter described, are broken away for clarity and in order to show a dropping bottle B.

As shown in FIGS. 3 and 7 the sub-frame 46 supports a guide support 52 the guide and support 52 is generally flat in the area indicated by the numeral 54 and is secured by any suitable means to the support 46 as, for example, by means of screws 56. At its upper end the guide support 52 has a flange 58 extending nearly the width of the sub-frame 46 and forming therewith a generally U shaped channel opening upwardly. On its lower edge the sheet metal strip 52 which serves as a guide support for the chute has a flange 60 forming with the sub-frame 46 a downwardly opening U channel 60.

Two sliding

members

62 and 64 are arranged to embrace the

flanges

58 and 60. As shown in FIG. 3, the embracing

members

62 and 64 are arranged left and right with each of the same arranged to embrace the

flanges

58 and 60. The member 64, for example, is shown in FIG. 7 as having an downwardly directed U shaped upper edge 66 embracing the flange 58 and the lower edge of the member 64 has an upwardly extending U shaped edge 68 embracing the flange 60. The member 62 is similarly shaped to embrace the

flanges

58 and 60.

The

members

62 and 64 support respectively the left and right halfs (lower and upper as viewed in FIG. 3) of the chute 40 as more fully described hereinafter. Since the bottles may be of different heights, the

members

62 and 64 are arranged for adjustment toward and away from each other by means of a pair of

cranks

70 and 72 which pass rotatably through support members 74 and 76 respectively (see FIGS. -2 and 1 respectively). The members 74 and 76 are fixed on the left and right sides respectively (as viewed in FIG. 1) of the sub-frame 46. The

shafts

80 and 82 respectively have threaded

end portions

84 and 86 passing through nuts 88 and 90 fixed respectively to the

sliding supports

62 and 64. Thus, by rotating either or both of the

cranks

70 and 72 the sliding supports 62 and 64 may be moved toward and away from each other. Fixed to the sliding support plate 64, as shown in FIG. 7, are two vertically spaced threaded rods 92 and 94. These threaded rods 92 and 94 are fixed to the plate 64, for example, by welding as shown at 96 and 98 respectively. The outer ends of the rods 92 and 94 pass through openings in two

metalflanges

100 and 102 of two

metal chute members

104 and 106 respectively. The

complimentary chute members

104 and 106 comprise one-half of the chute 40 and have their

respective flanges

100 and 102 spaced apart along the threaded members 92 and 94 by means of the

cylindrical spacer members

108 and 110. The

flanges

100 and 102 are clamped tightly against

spacer members

108 and 110 by means of threaded

nuts

112, 114, 116, and 118 on the threaded rods 92 and 94. The

nuts

114, 116, for example, clamp the spacer 108 between the

flanges

100, 102 on the threaded rod 92. Similarly, the nuts 112, 118 tightly embrace the

flanges

100 and 102 therebetween with the spacer 110 between the

flanges

100, 102.

On the other side of the chute a similar set of

rods

120, 121 support

complimentary chute members

122, 124. The arrangement is essentially identical to that above described for the opposite side of the chute and includes

spacers

126, 127 clamped between the

flanges

128, 130 respectively of the

chute members

122, 124 by means of nuts such as

nuts

129, 131 on rod 120.

It will be seen that the

cooperating chute members

104, 106 and the complimentary pair of

cooperating chute members

122, 124 comprise a substantially rectangular chute 40 which may be adjusted in a number of ways to accomodate bottles of various shapes and dimensions. As mentioned above, operation of the crank 70 will move the chute half comprised of the

chute members

122, 124 toward or away from the chute half comprised of the

chute members

104, 106, which in turn may be moved toward or away from the first half (the chute, members 122, 124) by means of the crank 72. This adjustment adapts the chute 40 to bottles of various thicknesses the spacer blocks 108, 110, 126, 127 may be replaced with blocks of greater or lesser width by removing the appropriate nuts on the supporting

rods

92, 94, 120, and 121. The spacer blocks may then be replaced with blocks of selected size and the nuts replaced.

Additionally, in order to insure that the lower end of the chute 40 aligns properly with the cups 132 in the table 30, the entire chute 40 may be adjusted forward and backward with respect to the sub-frame member 46 by means of the nuts on the threaded

rods

92, 94, 120, 121.

Also mounted between the

flanges

100, 102 of the

guide chute members

104, 106 on a bolt 132 is a downwardly and inwardly extending light sheet metal guide strip 134. On the opposite side of the chute 40 a complimentary guide strip 136 extends downwardly and inwardly from its mounting bolt 138 extending between the

flanges

128, 130 respectively of the

guide chute members

122, 124. The

flanges

128, 130, 100 and 102 define bottle neck-receiving slots in the fore and aft ends of the chute.

Above the guide strips 134, 136 are tripper mechanisms for engagement with the neck of a bottle. As shown in FIG. 6 these trippers or obstructions comprise rods, or bolts, 140, 150 extending inwardly toward the

flanges

102, 130 respectively from the

flanges

100, 128. These

trippers

140, 150 may, if desired, extend the full width of the space between the flanges, but for simplicity it is preferred that they extend only approximately three quarters or more of the way across the space between the flanges. It is only necessary that the

trippers

140, 150 extend beyond the center of the distance between the

flanges

100, 102, and 128, 130 in whatever position (or width of bottle) the

flanges

100, 102, and 128, 130 are arranged with respect to each other by means of the spacer blocks.

Also mounted from the sub-frame 46 above the chute 40 is a horizontal shaft 152 supporting two

star wheels

154, 156. These

star wheels

154, 156 are arranged to receive in their

respective pockets

158, 162 plastic bottles 160 fed to the star wheel from a chute 164. The shaft 152 also carries on one end thereof a sprocket 166 fixed thereto and engaged by a chain 170. The chain 170 is also trained about a sprocket 168 mounted on a suitable stub shaft 172 in turn supported from a suitable portion 174 of the sub-frame 46.

The chain 170 is also trained inside a sprocket 176 fixed to a shaft 178 which is journaled in two

portions

180, 182 of the sub-frame 46. A star wheel or rotor of triangular shape 190 is fixed intermediate the ends of the shaft 17 8 to rotate within the chute 40 between the inner ends of the

chute members

104, 122. This serves to time the drop of the bottles onto the rotary table beneath, as more fully disclosed below.

The chain 170 is also trained about a sprocket 192 fixed to the main drive shaft 24. The chain 170 also passes through a chain tightening mechanism comprising a stub shaft 194 suitably mounted in the base frame segment 44 and having thereon the sprocket 196. R0- tatable about the shaft 194 is a wheel supporting member 198 which is pulled counterclockwise (in FIG. 2) about the shaft 194 by means of a spring 200 attached at one end to the frame member 44 and at the other end to a bar 202 extending outwardly from the pivoted member 198. At its upper end the pivoted member 198 rotatably supports a wheel 204 which bears against the inner side of the chain 170 to tighten the same under the urging of the spring 200. It will be seen that despite the numerous adjustments made or possible in the device, adequate slack is provided in the chain 170 such that all sprockets are constantly engaged and operating by virtue of the chain tightening mechanism just described.

As shown in FIG. 4 the rotating table 30 has an upper level 400 and lower level 402 about its periphery. The lower level 402 is aligned beneath the outlet of the chute 40. Pivoted at a plurality of points 404 to the upper level 400 are a plurality of spring urged paddles 408 which are urged by springs 410 attached to the rearward ends 412 of the paddles 408 and also atixed at 414 to the top surface 400 of the table 30. As the table 30 moves the outer ends of paddles 408 come into contact with a fixed cam 416 attached to an arcuate fence 417 which is fixed to a suitable portion of the fixed frame 44 (see FIG. 2). This causes the paddles 408 to swing backwardly one at a time against the urging of the springs 410 just as the preceding pocket 132 comes beneath the outlet of the chute 40. This slightly enlarges the pocket 132 just prior to receiving the bottle. After having passed beneath the chute 40 the paddles 408 will pass by the stationary cam 416 and, under the urging of the springs 410 will spring back into place firmly holding the bottles in upright position in pockets 132. Suitable mechanism, shown only schematically in FIG. 1 may be provided for removing the bottles from the turntable.

It has been found that while the device works to orient well in excess of bottles per minute depending upon the speed of the machine, in the range much above about per minute, the bottles do not fall through the chute 40 fast enough to keep up with the speed of the machine. Accordingly, for higher speeds a compressed air jet 500 fed by a suitable air hose 502 from a source of compressed air (not shown) is provided above the chute 40 and blowing downwardly through the chute 40 generally in the center thereof to speed the bottles downwardly in their gravitational fall. With the use of such compressed air, the machine speed may be doubled or even tripled over that without the use of the same.

OPERATION OF THE DEVICE In operation bottles, preferably of plastic, are fed to the device down the feed chute 164 (see FIG. 5). It will be noted that the bottles have already been oriented with their longitudinal axes horizontal but that the neck or opening 206 in the bottles 160 may face in either of two directions (toward or away from the viewer in FIG. 5). The motor 16 is operated to drive the pulley 18 which in turn drives the belt 20, pulley 22 and main drive shaft 24. The main drive shaft 24 will rotate the rotary table 30 in the direction of the arrow 32 and will also move the chain 170 in the direction of the arrow 208. This will cause the shaft 152 to rotate moving the

star wheels

154, 156 in the direction of the arrow 210. The pair of

star wheels

154, 156 cooperate to pick up a bottle in their cooperating

pockets

158, 162, and rotate the bottle clockwise about the shaft 152 as viewed in FIG. 5. The bottle will then be dropped down the chute 40 by gravity. The chute 40, of course has been so adjusted that the distance A shown in FIG. 6 is only slightly greater than the distance from the shoulder 161 to the bottom 163 of the bottle. The

star wheels

154, 156 are aligned with this dimension of the chute and, accordingly, the neck 206 of the bottle will extend laterally outwardly in the space between the

flanges

100, 102 or the space between

flanges

128, 130 depending upon which way the bottle was fed by the chute 164. As the bottle 160 drops by gravity its neck 206 will strike either the tripper mechanism 114 or the tripper 150 permitting the bottom portion of the bottle to swing downwardly in the chute and precede the neck down the chute. In this way the bottle will be oriented with its neck opening upwardly.

As the bottle proceeds down the chute it is guided toward the center by means of the flexible guide strips 134, 136 which may, if desired, be adjustable toward each other at their bottoms by any suitable mechanism, not shown. As the bottle proceeds down the chute 40 its bottom will strike one of the inwardly projecting points of the triangular spacing timer 190 which is provided in order to more accurately time the drop of the bottle into the receiving pockets 132 of the rotary table 30. As the spacer triangle 190 is rotated by the chain 170 it will permit the bottle to make the remainder of the downward drop into the pockets 132 of the rotating table 30.

I claim:

1. A bottle orientor for orienting plastic bottles having a bottom end and an opposite neck end adjacent the shoulder of the bottle therein comprising means for dropping individual bottles downwardly with said neck end disposed initially laterally of the direction of drop, a chute confining said bottles during the drop, the chute having opposite fore and aft ends to confront and guide the bottom end of the bottle and the shoulder of the bottle, and each of the fore and aft ends of the chute having an upright neck-receiving slot oriented upright to receive and pass the neck end of the bottle downwardly, a pair of stationary obstructions, each disposed in a respective neck-receiving slot and engaging the neck only of the dropping bottle to retard the neck of the bottle during the drop thus to permit the bottom end of the bottle to precede the neck end downwardly through the chute, and means beneath the chute to receive the individual oriented bottles bottom end down.

2. The device of claim 1 including an air nozzle above the chute and directing air downwardly through the chute and medially between the fore and aft ends of the chute for aiding in the moving said bottles downwardly.

3. The device of claim 2 in which said receiving means includes a plurality of moving pockets, and means for timing the drop of individual bottles into said pockets.

4. A high speed bottle orientor for orienting light weight plastic bottles having a bottom end and an opposite neck end adjacent the shoulder of the bottle comprising an upright chute having a top end with an open interior conforming approximately to the size and shape of the bottles and to receive the bottle in horizontal position and pass the bottle downwardly, the chute having means disposed in the path of the bottles for engaging the neck only of dropping bottles to retard the neck of the bottle during the drop to permit the bottom end of the bottle to precede the neck end downwardly, means beneath the chute to receive the individual oriented bottles bottom end down, means supplying bottles in substantially horizontal position to the top of the chute and including a ramp over which the bottles are passed and directed toward the upper end of the chute, and a pair of rotary driven star wheels turning on a horizontal axis and disposed between said ramp and the upper end of the chute, said star wheels being spaced from each other and having bottle receiving compartments spaced about the periphery thereof and revolving adjacent the ramp to receive bottles therefrom and to deliver the bottles into the upper end of the chute, the star wheels successively lifting the bottles from the ramp and thereafter dropping the bottles into the chute for orienting.

5. A bottle orientor for orienting light weight plastic bottles having a bottom end and an opposite neck end adjacent the shoulder of the bottle comprising means for dropping individual bottles downwardly with said neck end disposed initially laterally of the direction of drop, a chute receiving and confining the bottles during the drop, the chute having opposite fore and aft ends to confront and guide the ends of the bottle, means disposed in the path of the bottles for engaging the neck only of dropping bottles to retard the neck of the bottle during the drop, thus permitting the bottom end to precede the neck end downwardly through the chute, the chute also having opposite sidewalls extending between said fore and aft ends, one of said sidewalls having an upright opening therethrough adjacent the bottom of the chute, a generally triangular plate-like rotor ex- .tending through the opening in the wall and into the chute and lying substantially transversely of the wall and in an upright position, means mounting the triangular rotor for rotation on a horizontal axis at the exterior of the chute so as to successively revolve the corners of the triangular rotor into and out of the chute, the triangular rotor sequentially obstructing and clearing the interior of the chute so as to temporarily hold and then release for dropping the plastic bottles as they fall in upright position after having been oriented with the bottom end down and means beneath the chute to receive the individually oriented bottles bottom end down.

it w t t

Claims

5. A bottle orientor for orienting light weight plastic bottles having a bottom end and an opposite neck end adjacent the shoulder of the bottle comprising means for dropping individual bottles downwardly with said neck end disposed initially laterally of the direction of drop, a chute receiving and confining the bottles during the drop, the chute having opposite fore and aft ends to confront and guide the ends of the bottle, means disposed in the path of the bottles for engaging the neck only of dropping bottles to retard the neck of the bottle during the drop, thus permitting the bottom end to precede the neck end downwardly through the chute, the chute also having opposite sidewalls extending between said fore and aft ends, one of said sidewalls having an upright opening therethrough adjacent the bottom of the chute, a generally triangular plate-like rotor extending through the opening in the wall and into the chute and lying substantially transversely of the wall and in an upright position, means mounting the triangular rotor for rotation on a horizontal axis at the exterior of the chute so as to successively revolve the corners of the triangular rotor into and out of the chute, the triangular rotor sequentially obstructing and clearing the interior of the chute so as to temporarily hold and then release for dropping the plastic bottles as they fall in upright position after having been oriented with the bottom end down and means beneath the chute to receive the individually oriented bottles bottom end down.