JPS636A - Method and device for coating terminal edge of terminal section and inside edge of opened vessel with adhesive - Google Patents

Abstract

There is provided an apparatus and method for applying adhesive to the open ends of containers (20) each having a non-cylindrical cross-section, oppositely disposed front and rear wall panels (23, 24), oppositely disposed side panels (21, 22), and a center line (c) parallel to the front and rear wall panels and aligned with the center of the side wall panels. The apparatus includes conveying means (30) for moving the containers along a line of movement (L) through an adhesive application area (A). The conveying means includes attachment means (34, 35) for substantially immovably supporting the containers thereon at least during adhesive application procedures. The adhesive application area includes a pair of rotary adhesive applicators (40, 50) for applying adhesive to the edges and portions adjacent such edges of an open end of the containers. These rotary adhesive applicators each have a central axis (47, 57) which is oriented in a non-normal relationship to at least one of the center line and line of movement of such containers, and are arranged relative to the conveying means such that as the containers pass the applicators, such applicators contact the edges of an open end of the container panels. Rotation control means maintain a relative speed differential between the containers being moved along the conveying means and the rotating adhesive applicators.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method and apparatus for bonding an adhesive to the distal and inner edges of an open end of a container;
At least two rotary adhesive depositors are used, and these rotary adhesive depositors have containers that contain the rotary adhesive 'tJJ.
The present invention relates to a method and apparatus for oriented the container in a non-perpendicular relationship to at least one of the centerline and line of motion of the container as it passes through the container rolls.

[Prior art and problems]

Many examples are found in composite cartons and other containers commonly used in the packaging industry where separate end pieces are adhered to the open end or ends of these cartons and containers. There are also a number of patents that specifically disclose apparatus and methods for applying adhesive to one edge of a cylindrical container. For example, U.S. Patent No. 2,447
, 528 discloses a machine for bonding a liquid adhesive to the inner and outer upper edge portions of a cylindrical fiber container body. In particular, this patent includes disks and cooperating rings that rotate in unison while holding a cylindrical container body therebetween, and apply adhesive retained by the disks and rings to the inner and outer edge portions of the container body. It is written on the rotating device to be transferred. The discs and rings are spaced apart from each other by a distance slightly less than the thickness of the container body, so that pressure is exerted against the container body to hold the container therebetween and to facilitate adhesive application to the container. You can be the defendant. Similarly, U.S. Pat. No. 2,365,775 discloses an adhesive bonding device for cylindrical paper containers. Similar to the container processing apparatus of the aforementioned patent, this patent places one end of a cylindrical container body between a pair of adhesive bonding rolls, one of which engages the interior surface of the container body, and the other A device is disclosed in which the roll engages an outer surface. Each rotary adhesive coater roll is provided with adhesive reservoirs which deposit a quantity of adhesive coating on the outer surface of each rotary adhesive coater roll. In using this apparatus, the container body is rotated between adjacent rotating contact agent rolls to simultaneously apply adhesive to the interior and exterior surfaces of the container.

U.S. Pat. No. 2,124,722 relates to an apparatus for bonding an adhesive material to the end of a tubular container, in which the tubular container is rotated while
It is passed close to a rotating adhesive bonding wheel. More specifically, in the device of this patent, a continuous film of condensable material is held on a rotating adhesive waver wheel;
A cylindrical container is brought into tangential engagement with the wheel and moved along its surface, causing the material to dissipate over the distal edge of the container body in contact with the wheel and along the inner circumferential surface of this edge. . A similar device is available in U.S. Patent No. 2,388.9.
It is described in No. 11. This device is also designed to apply adhesive to the end of a cylindrical container, rotating the cylindrical container along a track system to bring one end of the container body into contact with a rotating adhesive depositor roll. let Said patent No. 2.
Similar to No. 124,722, this rotary adhesive applicator applies adhesive directly to the end of the container by rotating the container body in contact with the rotary adhesive applicator roll. , also adhere some of the adhesive along the inside surface of the container. The device is also adjustable to adhere adhesive to cylindrical containers of various heights.

Another device for coating adhesive onto cylindrical containers is described in U.S. Pat. No. 4,413,587. The rotary adhesive depositor uses a pair of worm screws to ensure that the can or tubular container is tilted as it contacts the rotary adhesive depositor roll. It is stated that by tilting the container in this manner, the position of the adhesive bead bonded to the container can be more precisely controlled. During the fixing process, an endless belt imparts rotation to the can or tubular container and presses it against the worm screw.

By controlling the speed of the two worm screws, the container can be tilted as desired and the precise contact between the rotating container and the rotating adhesive depositor roll can be controlled.

Although automated equipment is relatively widely used to apply adhesive to the upper edge of cylindrical containers, it is difficult to reliably apply adhesive to its inner edge when the container is not cylindrical. Problems remain in terms of adhesion. In particular, to date no efficient and effective method and apparatus has been developed for accurately and easily bonding adhesives to the inside edges of substantially rectangular composite cartons on high speed machines. Prior art structures and methods relied primarily on the ability to rotate the container to achieve controlled automatic deposition of adhesive. Accordingly, these methods and devices have not been able to facilitate the manufacture and handling of substantially rectangular containers or other containers having generally non-cylindrical cross-sections.

[Summary of the invention]

An object of the present invention is to solve the above-mentioned problems.

Another object of the invention is to provide an apparatus for applying adhesive to the top of the open end of a container having a non-cylindrical cross section.

Yet another object of the present invention is to provide an apparatus and method for applying adhesive to the top of the open end of containers having a non-cylindrical cross section and allowing a large number of such containers to be operated on high speed automated equipment. is to provide.

It is also an object of the invention to adhere a predetermined amount of adhesive or other liquid substance to the top of the open end of a container having a non-cylindrical cross-section, and to form a container of various dimensions with minimal modification. The objective is to provide a relatively simple and reliable method and apparatus for processing containers.

According to one aspect of the present invention, a non-cylindrical cross section, a front panel and a rear panel disposed opposite to each other, an image side panel disposed opposite to each other, and both side panels parallel to the front panel and the rear panel. An apparatus is provided for bonding a liquid substance, such as an adhesive, to an open end of a container having a centerline passing through the center.

The device includes transport means for moving a container as described above along a line of motion through an adhesive bonding area. The conveying means includes attachment means for substantially fixedly supporting the container at least during the adhesive application process. The apparatus also includes an adhesive bonding section with a pair of rotating adhesive applicators for bonding adhesive to the open edge of the open end of the container and to a portion adjacent the edge. Each of these rotary adhesive depositors has a container centerline and a small line of motion (
have central axes oriented in a non-perpendicular relationship with respect to each other, and the rotary adhesive depositors meet the open edges of the container panels as the containers pass through these rotary adhesive depositors. They are mounted on the conveying means so as to be in contact with each other. A rotation control means maintains a constant relative speed difference between the container and the rotary adhesive depositor moving along the transport means. This relative velocity difference, along with the non-vertical direction of the rotary adhesive depositor, causes the opening of the front and back panels of the container as the rotary adhesive depositor contacts the distal edges of the container panel. A predetermined amount of adhesive is applied to the open edge of the end and the portion adjacent to this edge. This simple apparatus and method can efficiently and reliably bond a given adhesive bead to the open end of a non-cylindrical container in high speed automated equipment.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings.

In these figures, like numerals indicate like elements and the apparatus 1 for dispensing adhesive to the open end of the container 20.
0 is shown as including a transport means 30 for feeding the container 20 into the apparatus, and a pair of rotary adhesive applicators 40 and 50.

As shown in FIGS. 1 and 2, each container 3o is conveyed by a conveying means 30 to a rotary adhesive HH machine 4o and 50, which allows the containers 2o to be placed at one end and front side of the right panel 21. Adhesive beads are glued to the top (71a, 71b) and to the top and inner top (74, 72° 73a, 73b) of the front and rear panels 23, 24 and left panel 22.

Following application of the adhesive beads 71-74, a closure member or lid (not shown) can be applied to each container to close its open top.

Although the apparatus and method of the present invention will be described with respect to adhesive bonding to the open top end of a container, both ends of the container may be open and the method may be performed on both ends of the container. The apparatus 10 describes a rotary adhesive applicator 4o and 50 mounted above the conveying means 3o for applying adhesive to the open upper end of a container 2o, but not to the open lower end of such a container. A rotary adhesive applicator can also be arranged below the conveying means 30 for adhering the adhesive.

However, the rotary adhesive applicators 40 and 50 are designed to prevent carton powder from disrupting the gluing operation or getting into the adhesive and compromising the integrity of the seal formed on the container.
It is preferable to place the container above the moving container. However, since the carton powder is typically scraped off the adhesive roller by a doctor blade roll cleaner (not shown) and by the scraping action of the adhesive bead described herein, the carton powder is removed by the method of the present invention. It was discovered that no problems were caused in the use of the device. The rotary adhesive applicator of the present invention is also mounted on the side of the conveying means 30 in order to adhere the adhesive to the open end of the carton which is disposed transversely perpendicular to the direction of movement of the conveying means. Can be installed adjacent to each other. (Unlike the rotary adhesive depositor of the Krohn Labeler machine in Wyoming, Franklin, Krohn-Tsuji, which positions its axis substantially vertically) Because of the timing and spacing requirements of the containers, the side-position gluing method described above is messy and unreliable; Or, it is preferable to arrange 50.

The conveying means 30 is shown as including an endless belt 31, which has containers 2 on its upper surface.
Attachment means 34 and 35 are provided for holding the 0 substantially fixed. These attachment means are illustrated as fixed guide rails that limit lateral movement of the container 20, and are only one example of how such a container can be fixedly supported on the transport means. In this context, the term "substantially fixedly supported" means that the container 20 does not move substantially relative to the endless belt 31 as it passes through the rotary adhesive applicators 40 and 50; This means that the container 20 continues to move at a predetermined speed over these rotary adhesive applicators. Controlled contact between the rotary adhesive depositor and the moving container 20 to create a constant motion speed difference between the rotary adhesive depositor and the container, at least during the adhesive application stage. It is clear that it is important to support this container in a substantially fixed manner, since it is necessary to produce this effect. Other means for fixedly supporting the containers on the conveying means 30.1- include clamping means attached to the endless belt 31 to prevent any movement of the containers on the conveying means 30.1-, and in addition to Alternatively, various tie members 11 may also be sufficient for movement of such a container. The use of guide rails or other clamping devices for fixedly supporting the containers 20 on the transport means 30 is commonly used in the packaging industry and will not be described in detail here.

Although the illustrated containers 20 are substantially evenly spaced along the transport means 30, some gap is required between the moving containers in order to adhere the front adhesive bead 71.
Such gaps are variable and their uniformity is not important. If there is no gap between two adjacent containers 20, the left panel surface of the first container and the right panel surface of the second container will come into contact, and a bead 73 will be formed on top of the first container and the second container, respectively. It will be easily understood that arranging 71 becomes difficult. Moreover, without such a gap, it would be a nuisance when the lid is next applied to these containers.

The endless belt 31 of the conveying means 30 carries the container 2 in the adhesive bonding area or portion (the front area in FIGS. 13 and 2) in which the pair of rotary adhesive applicators 40 and 50 are located.
Send 0. The conveying means 3o moves the container 20 along a specific line of motion. This line of motion is aligned with the centerline C of the container 20 so that the rotary adhesive 1) JiR device is held in a predetermined direction for the front and rear panels (e.g. 23 and 24) of the moving container. Preferably, they are substantially parallel. 1st
As shown in FIGS. 3 and 3 and as previously described, the container 2
Rotary adhesive when 0 is moved along the line of motion?
A rotary adhesive vL applicator (40) is arranged above the conveying means 30 so that the lower surface (for example 48) of the JIH device contacts the upper edge (25) of each container 20 passing beneath it. Things are good.

The rotary adhesive depositor 40 also includes a rotary power source 41 , a rotary transmission means or shaft 42 for transmitting the rotary power source along an axis 47 to a rotary adhesive depositor roll 43 , and a container 20 .
A liquid adhesive or other liquid substance 45 (hereinafter referred to as "adhesive" or "adhesive" for simplicity) is applied to the open end of the
Adhesive reservoir 44 for containing adhesive material (referred to as "adhesive substance")
including. The rotational power source 41 is preferably a motor or similar device typically used to drive a rotary adhesive applicator. The rotary transmission means 42 may simply be a drive shaft for connecting the rotary power source 41 to the rotary adhesive depositor roll 43. The rotary adhesive depositor roll 43 and its adhesive reservoir 44 may be any standard adhesive roll/glue reservoir assembly commonly used in the industry (e.g., commercially available from Monterey LTI, Inc., California). thing).

A rotary adhesive depositor roll 43 is rotated through a reservoir 44 containing adhesive 45 as the roll 43 is rotated through a doctor blade (not shown) or similar thickness control device. , rotary adhesive applicator roll 4
A predetermined thickness of adhesive is deposited on the outer surface of 3, and the doctor blade is preferably adjustable to vary the thickness of the adhesive. A rotary adhesive roll cleaner blade (also not shown) is used to remove excess adhesive or foreign matter from the exterior surface of the rotary adhesive adherer roll 43 before it enters the adhesive reservoir 44. (e.g. powder from container cartons). A detailed description of the rotary adhesive appliers 40 and 50 will not be given since there are many commonly used roll/glue reservoir assemblies in use in the industry.

- generally rotating adhesive coater rolls (e.g. 43 and 53);
is made of steel or similar metal. - When an adhesive roll, generally made of steel with a thin adhesive coating, comes into contact with paperboard or similar carton material, the adhesive will adhere to the surface of such paperboard as a result of intermolecular or chemical attraction. It will be done. The adhesive adheres more easily to the paperboard surface than to the smooth metal surface of the roll, so it migrates to the paperboard surface. In standard adhesive roll/deposition processes, this common phenomenon is used, but the tendency is for only a portion of the adhesive to be diluted relative to what is actually attached by the adhesive roll. There is. In the apparatus and method of the present invention, a unique adhesive roll orientation as described above is used to deposit an additional amount of adhesive on the surface adjacent the open edge in contact with such adhesive roll. Supplements molecular or chemical adhesion phenomena.

The rotary adhesive depositors 40 and 50 are oriented with their central axes (45 and 57), respectively, in a non-perpendicular relationship to the container centerline C and the line of motion. As shown in Figure 1,
The center line C of the container is between the right panel and the left panel 21 of the container.
．． 22 and parallel to the front panel 23 and the rear panel. - Generally speaking, this centerline is defined for the open end of any container having front and rear panels and mutually opposed (possibly polygonal) right and left panels. is defined as a line passing through the central axis of the container parallel to the front and rear panels. Rotary adhesive applicator 40 preferably includes container 20
(i.e., the open side of the roll 43 opposite the adhesive reservoir 44 is oriented outwardly from the centerline C of the container 20
outward from the center line C and the line of motion). This outwardly twisted relationship of roll 43 to the centerline is defined by angle α in FIG.

a non-vertical orientation of such a rotating adhesive adherent roll (i.e., an orientation of the roll in which the central axis of the roll is not oriented perpendicular to a vertical plane parallel to the centerline C of the container 20); If the container 20 is a rotary adhesive container (e.g. 4
It has been discovered that a scraping action occurs at the point of contact between the roll (eg 43) and the open edge 25 of the container 20 when passing through the container 20. This scraping action is useful in high speed equipment to accurately and conveniently adhere additional adhesive beads to the distal end 25 and upper edge of the open end of the container 20. As illustrated in FIGS. 1 and 2, this non-vertical relationship is strictly limited to the orientation of the rolls in the X-Z plane (i.e., the lower surfaces of rolls 40 and 50 are disposed substantially horizontally). ). Although the rotary adhesive depositor rolls 40 and 50 can be tilted upwardly or downwardly in the Y-Z plane, they are required to provide a substantially uniform contact surface with the top edge 25 of the container 20. Preferably, the rolls are arranged substantially horizontally as shown in FIG.

It has been discovered that the dimensions of such beads of adhesive material can be precisely controlled and varied as desired by varying a few variables. More specifically, assuming constant viscosity of the liquid adhesive, speed of movement of the container through the device, and thickness of the adhesive on the roll surface,
The amount of beaded adhesive along the outer surface of 1 and the inner surface of each of front panel 23, rear panel 24, and left panel 22 varies the orientation angle of rotary adhesive devices 40 and 50. by varying the thickness of the adhesive on the rotary adhesive roll and/or by varying the speed difference between the rolls 43 and 53 relative to the speed of movement of the container 20 along the conveying means 30. can be controlled reliably and accurately. In addition, when using two rotary adhesive applicators placed opposite each other as shown in Figures 1 and 2, these two rotary adhesive applicators work together to roll the adhesive. Each rotary adhesive applicator contacts half the cross-sectional width of the free end of the container 20 to allow sufficient adhesive application to the free end of the container 20 as it passes through. Width with sufficient roll width is preferred. Of course, such a width relationship is not necessary if more than one rotating adhesive device is used in this method.

As shown in FIG. 3 of FIG.
74 and 73a), the innermost contact point (48) of roll 40 preferably extends inwardly by half the outer width of container 20. Similarly, the rotating adhesive container 50 is attached to the front half of the container 20 (i.e., bead 71b).

It is preferred to have a corresponding opposite orientation to the rotating adhesive device 40 so as to adhere the adhesive (along lines 72 and 73b). Same as rotary adhesive device 40,
The rotary adhesive depositor 50 is oriented from the inside of the container to the outside, and its central axis 57 is twisted at an angle β with respect to the centerline C.

Although exact angular values α and β are not required (nor do they need to be equal to each other), it is possible to scrape this adhesive (45 or 55) from the outer surface of the roll 43 or 53 onto the container 20 as described above. The central axis of the rotary adhesive container cannot be oriented perpendicular (i.e. 90") to the centerline and line of motion of the container. For example, the container could be placed on the conveying means so that the center line of the container is at an angle to its line of motion (not shown). In either case, however, the rotating adhesive device must be oriented non-perpendicularly to at least one of the centerline and line of motion of the container in order to produce the desired scraping action. It was discovered that if the rotary adhesive container is oriented perpendicular to both the container centerline and the line of motion,
No scraping action will be provided and the adhesive will adhere only to the terminal edges of the front and back panels of the container. Although the diameter of the adhesive bead deposited in the practice of the present invention can be varied by varying the orientation angle of the rotating adhesive device, any non-perpendicular You can use angles. However, preferably an angle of about 56 to 40'' is used for optimum effect.

1 and T52, the rotary adhesive applicators 40 and 50 are preferably rotated counterclockwise as the container moves from left to right. In this regard, it is preferred that the rotating adhesive coater roll surfaces 43 and 53 move generally in the same direction as the direction of movement of the container at the point of contact with the container. By "substantially" is meant that the rotating adhesive depositor roll has a component of motion in the same direction as the direction of motion of the container. Because the rotating adhesive depositor roll must be oriented in a non-perpendicular relationship to at least one of the centerline C and the line of motion of the container, the direction of rotation of this roll is not necessarily exactly the direction of motion of the container. is not identical to The rotating adhesive adherent rotates in exactly the same direction as the line of motion of the container (this only occurs if the rotating adhesive adherent roll is oriented perpendicular to the line of motion) Otherwise, the motion of the roll can be considered as a vector having a component in the direction of the container centerline C and/or the line of motion and a component perpendicular thereto.

The direction of motion of the rotary adhesive depositor roll, which is generally the same as the container motion direction, minimizes unnecessary friction within the apparatus and maintains a smooth, high-velocity flow of containers through the adhesive application area A. The component of motion of these rolls perpendicular to the container centerline C and/or line of motion causes an outward scraping action of the rotating rolls on the moving container panels.

It is also conceivable that the rotating adhesive depositor roll is oriented inward toward the centerline of the moving container (i.e.
The open face of the rotary adhesive depositor roll opposite the adhesive reservoir can also be oriented in a generally inward direction with respect to the centerline C and the line of motion of the container). In this case, the first
If it is desired to place the adhesive beads 71-74 on the same plane as shown in FIG. Must be clockwise as shown. This clockwise rotating roll 143 produces an outward component of motion perpendicular to the centerline C' of the container 220, thereby facilitating the deposition of the adhesive 145 on the inside surface of the rear panel 124. (Bead 172). Thus, such clockwise rotation, although generally opposite to the direction of movement of the container 120, retains the desired scraping action and removes the right panel 1.
21 outer surface 1'L, (bead 171a), inner surface of rear panel (bead 172) -1=, and left panel 12
Inner side of 2-1. : (Bead not shown in Figure 4)
Adhesive 145 is applied to. Doctor Blade〕48
forms part of an adhesive reservoir 144, which doctor blade maintains a predetermined thickness of adhesive 145 on the outer surface of the rotary adhesive depositor roll 143.

The rotational speed of the rotary adhesive coater roll according to the invention can be manipulated relative to a container moving on the transport means to determine the location and size of the adhesive bead coated on the container. For example, in FIG. 3, increasing the speed of the rotary adhesive applicator 43 (without changing the speed of movement of the container 20 on the conveying means 30) will result in more adhesive being deposited on the bead 72. is glued along the The location of such beads can also be determined by varying the rotational speed of the rolls. For example, if the rotary adhesive coater roll 43 is rotating at a rotational speed that has a component parallel to the container centerline C and the direction of the line of motion, which is less than the speed of the container 20 in the direction of the container motion line. For example, the adhesive would be applied as shown in FIG. If, on the other hand, the rotary adhesive applicator roll 43
If the rotation speed has a component parallel to the container center line C and the direction of the motion line, which is higher than the speed of 0, the adhesive 45 is adhered to the inner surface of the right panel 21, and the adhesive 74
A bead will be placed on the inside surface of the container 20.

In this way, the speed difference between the rotating adhesive applier roll 40 (or any rotating adhesive applicator roll according to the invention) and the moving container 20 is varied during the gluing process for each container. For example, a bead 71a is placed on the upper part of the inner surface of the panel 21, and then the rotational speed of the roll is reduced to form the bead door 2 as shown in FIGS. 1 and 3.
and 73a can be glued together. As a result of this speed differential manipulation, all beads can be placed on the inside surface of the open container end. Finally, if the rotary adhesive depositor roll 43 is rotating at a speed that has a linear advance component equal to the speed of the container 20 in the linear direction, there will be limited waste adhesive. is disposed only on the outer or inner surface of the container panel by the scraping action,
The bonded adhesive is primarily confined to the top edge 25 of the container as a result of the aforementioned normal molecular or chemical attraction of the adhesive to the container material. A rotary adhesive depositor is oriented outwardly with respect to the centerline C of the container 20 on the conveying means 30, and the rotary adhesive depositor is oriented generally in the same direction of movement as the container, at the speed of the container moving. It is preferable to rotate at a speed having a slightly lower component in the linear direction of motion. At such a speed difference, more adhesive is scraped from the rotary adhesive applicator by the container S20.

FIG. 5 shows another embodiment of the apparatus 210 of the invention, in this case a pair of rotary adhesive applicators (240 and 250).
are oriented such that their central axes are substantially parallel to the centerline C' and the line of motion L', and the front and rear panels 224 of the container are .223 is placed in contact with the upper edge 225 of the .223. Rotary adhesive adhesive 5240 and 250
is not twisted with respect to the centerline C'' and the line of motion L'', but its central axis is disposed non-perpendicular to these lines as in the previous case.

As seen in FIG.
43 and 253 are rotated in the direction of the arrows through adhesive reservoirs 244 and 254, respectively, to adhere adhesive 244 and 245 to the inside surfaces of the front and rear panels 223 and 224 of the container adjacent to the upper edge 225 (glue agent bead 272,
274). Third rotary adhesive holder 260 or center line C'
and in substantially perpendicular relation to the line of motion L', and rotated clockwise as shown so as to contact both the right and left panels (221, 222), Adhere beads 271.27B. As can be seen by comparing FIG. 5 with FIG. The apparatus 210 is only one example of the many ways in which the apparatus of the present invention may be modified to accommodate various manufacturing requirements.In this regard,
For a container with a hexagonal open cross-section, a plurality of rotating adhesive applicators can be correspondingly arranged to adhere adhesive beads to the open end of the container.

The illustrated and described apparatus can be advantageously used to coat the top and top of a substantially rectangular container with adhesives or other settable substances or the like. As described above for hexagonal containers, the apparatus and method can be applied to the upper end of the open end of other polygonal-non-cylindrical containers by positioning two or more of the aforementioned rotary adhesive applicators. It is also conceivable that it can be used to adhere adhesives to the top and top surfaces. Figure 1 and f?
The device shown in Figure J3 has an opposing front panel and a rear panel (for example, the first
23 and 24) of FIG. 1) and opposing side panels (eg, right panel 21 and left panel 22 of FIG. 1). For example, the container 20 may have a front and back panel length of approximately 8.2' (20.53 mm) and a length of approximately 2.3' (approximately 5.5 mm).
The length of the right panel and left panel is 76 mm), and the length of the right panel is approximately 11 mm.
' (approximately 27.54 mm) and a thickness of approximately 0.025 inch (approximately 6.4 mm). Transport means 39
The container 20 is preferably conveyed to the deposition section with its open end held substantially vertically and, as previously described, substantially fixedly supported on the conveying means at least during the deposition operation. mounting means (e.g. guide rails 34, 35)
)including. The transport means 30 moves the container 20 through the adhesive bonding area A at a predetermined speed, for example, about 80 feet per minute (about 24 sounds per minute).

The rotary adhesive applicators 40 and 50 are the same as the container 20. ! When treated with respect, TE
Adhesive is applied by contacting the distal edges 25 and adjacent portions of the open ends of the front panel, back panel, and side panels of the vessel. As mentioned above, the rotary adhesive applicator 4
0 and 50 are rotated at a predetermined speed (for example, about 1 in diameter
For a 27m11 rotary adhesive adherent roll, approx.
0 r, p, m, ), and preferably oriented outward from the centerline C of these containers. Furthermore, the rotary adhesive applicators 40 and 50 are connected to the container 20 along the conveying means 30.
It is preferable to rotate at a predetermined speed slightly lower than the corresponding movement speed of. This speed difference can be adjusted as desired, but if the rotary adhesive applicators 40 and 50 are twisted at an angle of approximately 15° from the centerline of the container 20 and the line of motion (i.e., a It has been discovered that these rotary adhesive depositors are effective at rotational speeds that are approximately 15% lower than container 20 (where β and β are approximately 15°). The thickness of the liquid adhesive material on the outer surfaces of the rotary adhesive depositor rolls 43 and 53 can be varied as desired, but is approximately 38.0 mm thick.
Approximately 0.030 for an adhesive with a viscosity of 0.00 cp.
The top edge of the container is 25 inches (approximately 0.76 m+++) thick.
It has been discovered that beads 71-74 having a diameter of about 0.1 inch (2.5 mm) can be accurately and reliably deposited on the top of the container.

By varying the speed and/or angular variables of the rotary adhesive depositor roll as described above using the method and apparatus of the present invention, the placement and amount of adhesive or liquid material at the open end of the container can be controlled. It can be controlled accurately.

The present invention is not limited to the above description, and can be modified or implemented as desired within the scope of the spirit thereof. for example,
The center line of the container (e.g. C) is the line of motion of the container (e.g. L)
It is preferable that it be parallel to, but it is not necessarily limited to this. The centerline of the container can be oriented such that it is twisted relative to the direction of movement of the container. However, as long as the pair of rotary adhesive depositors are oriented in a non-perpendicular relationship to either or both of their vessel centerline or velocity line, the apparatus and method of the present invention will operate as described above. do.

[Brief explanation of drawings]

1 is a plan view of an adhesive application device according to the present invention, FIG. 2 is a side view of the adhesive application device of FIG. 1, and FIG. 3 is a perspective view of a part of the device of FIG. 1. FIG. 4 shows the contact of the rotary adhesive depositor with the distal edge of the open end of the moving container; FIG. , a perspective view of a portion of the apparatus of the present invention showing the application of adhesive to the distal edge of the open end of a moving container, and FIG. 5 shows another embodiment of the adhesive application apparatus according to the invention. FIG. 10... device, 20,120,220... container, 3
0... Conveyance means, 40.50, 140, 240°25
0.260...Rotary adhesive applicator, 43°143.
243,253,263...Roll, 45°145.
245...Adhesive, 71,72.7B. 74.171,172,173,174,271°27
2.273,274...Adhesive bead, C...Container center line, L...Container speed line, α, β...Roll twist angle.

Claims (1)

[Scope of Claims] 1. A front panel and a rear panel having a non-cylindrical cross section are arranged opposite to each other, and both side panels are arranged opposite to each other,
An apparatus for applying an adhesive to an open end of a container having a centerline parallel to the front panel and the rear panel and passing through the center of the opposite side panels, the apparatus comprising: (a) Conveying means for moving a container through a gluing area of said apparatus along a line of motion, said conveying means comprising attachment means for substantially fixedly supporting said container at least during the gluing step. (b) an adhesive application area including a pair of rotary adhesive applicators for applying adhesive to the panel distal edges and adjacent portions of the open end of the container; Each of said rotary adhesive depositors is configured to adjust the centerline and movement of said container such that said container contacts the open end of said container panel as it passes through said rotary adhesive depositor. (c) a container moved along said conveying means and said rotary adhesive depositor having a central axis oriented in a non-perpendicular relationship with respect to at least one of said lines; By maintaining a constant relative speed difference between the rotary adhesive applicator and the open edge of the container panel, a predetermined amount of adhesive is applied between the distal edge of the open end of the container panel and the open edge of the container panel. and rotational control means for depositing adjacent parts. 2. The center line and the line of motion are parallel to each other;
Apparatus according to claim 1, wherein the central axis of said rotary adhesive depositor is oriented in a non-perpendicular relationship to both said lines. 3. The central axis of the rotary adhesive applicator is twisted outward with respect to the line of motion of the container moved by the conveying means, and the rotary adhesive applicator is twisted in the same direction as the movement of the container. rotated by the rotation control means,
3. Apparatus according to claim 2, whereby said predetermined amount of adhesive is deposited on the inner surfaces adjacent the open end edges of said front and rear panels. 4. The central axis of the rotary adhesive applicator is twisted inward with respect to the center line of the container moving along the conveying means, and the rotary adhesive applicator is rotated by the rotation control means to rotate the container. 2. The predetermined amount of adhesive is deposited on the inner surfaces adjacent the open ends of the front and rear panels. device by. 5. The container is conveyed by the conveying means with its open end facing upward, and the rotary adhesive applicator is placed above the conveying means so that the container is conveyed by the conveying means. 5. A device according to any one of claims 1, 2, 3 or 4, which is arranged to pass below the applicator. 6. Apparatus according to claim 5, including vertical adjustment means for varying the position of the rotary adhesive applicator relative to the conveying means to accommodate containers of different heights. 7. The centerline of the container is not parallel to the line of motion of the container along the conveying means, and the center axis of the rotary adhesive applicator is not perpendicular to the centerline of the container. Apparatus according to claim 1, oriented in relation. 8. The center line of the container is not parallel to the line of motion of the container along the conveying means, and the center axis of the rotary adhesive applicator is not perpendicular to the line of motion of the container. Apparatus according to claim 1, oriented in relation. 9. The apparatus further includes a third rotary adhesive applicator for applying adhesive to the open end edge of the container panel and a portion adjacent the edge; Claim 2, wherein the center axis of the adherend is oriented substantially perpendicular to the center line and line of motion of the container.
Device according to section. 10. The central axes of said rotary adhesive depositors are each oriented in a non-perpendicular relationship at an angle ranging from about 5° to about 40° with respect to the centerline of said container. device by. 11. The pair of rotary adhesive applicators are positioned relative to the moving container such that one of the rotary adhesive applicators is in contact with the front half of the open end of the container during the adhesive application process; 11. Apparatus according to claim 10, wherein the other of the depositors is arranged relative to the moving container such that it is in contact with the rear half of this container. 12, having a non-cylindrical cross section, comprising a front panel and a rear panel disposed opposite to each other, and opposite side panels, which are parallel to the rear panel of the front panel and of the opposite side panels; Apparatus for applying adhesive to the top of an open end of a substantially rectangular container having a centerline through the center, the apparatus comprising: (a) a line of motion directed upwardly through the open end of the container; conveying means for movement along the gluing area of said apparatus, said conveying means comprising attachment means for substantially fixedly supporting said container during at least the gluing process; (b) ) an adhesive application area including a pair of rotary adhesive applicators for applying adhesive to the upper edge and adjacent top of the panel at the open end of the container; The rotary adhesive applicators each include a container that is moved along the conveying means such that the container comes into contact with the upper edge of the container panel as it passes through these rotary adhesive applicators. an adhesive deposition area having a central axis oriented in a non-perpendicular relationship to at least one of the centerline and the line of motion; (c) the rotary adhesive applicator relative to the conveying means; (d) maintaining a constant relative speed difference between a container moved along the conveying means and the rotary adhesive applicator; rotation control means for depositing a predetermined amount of adhesive on the upper edge of the open end of the container panel and the adjacent upper part thereof by contact between the adhesive applicator and the upper edge of the open end of the container panel; Equipment including. 13. Said centerline and said line of motion are mutually parallel, and the central axis of said rotary adhesive depositor is oriented in a non-perpendicular relationship to both said lines. Apparatus according to paragraph 12. 14. The central axis of the rotary adhesive applicator is twisted outward with respect to the line of motion of the container moved by the conveying means, and the rotary adhesive applicator is twisted in the same direction as the movement of the container. 14. Apparatus according to claim 13, wherein the apparatus is rotated by said rotational control means to deposit said quantity of adhesive adjacent the upper edges of the open ends of said front and rear panels. 15. The central axis of the rotary adhesive applicator is twisted inwardly with respect to the center line of the container moving along the conveying means, and the rotary adhesive applicator is rotated by the rotation control means to rotate the container. Claim 13, wherein the predetermined amount of adhesive is deposited adjacent the upper edges of the open ends of the front and rear panels. device by. 16. The centerline of the container is not parallel to the line of motion of the container along the conveying means, and the center axis of the rotary adhesive applicator is non-perpendicular to the centerline of the container. Apparatus according to claim 13 oriented in relation. 17. The centerline of the container is not parallel to the line of motion of the container along the conveying means, and the center axis of the rotary adhesive applicator is not perpendicular to the line of motion of the container. Apparatus according to claim 13 oriented in relation. 18. The apparatus further includes a third rotary adhesive applicator for applying adhesive to the upper edge and top of the panel at the open end of the container; 15. Apparatus according to claim 14, wherein the central axis of the container is oriented substantially perpendicular to the container centerline and to the line of motion. 19. The central axis of the rotary adhesive applicator is approximately 5° to approximately 40° relative to the container centerline and line of motion, respectively.
16. A device according to any of claims 12, 13, 14 and 15, oriented in an angular non-perpendicular relationship in the range of .degree. 20. The pair of rotary adhesive applicators are positioned relative to the moving container such that one of the rotary adhesive applicators is in contact with the front half of the open end of the container during the adhesive application process; 20. Apparatus according to claim 19, wherein the other of the adherents is arranged relative to the moving container such that it is in contact with the rear half of this container. 21, each having a non-cylindrical cross section, comprising a front panel and a rear panel disposed opposite to each other, and opposite side panels extending parallel to the front panel and the rear panel, and each having a non-cylindrical cross section; In a method of applying an adhesive to the upper edge and upper part of an open end of a container having a center line passing through the centers of oppositely arranged side panels, (a) the container is applied with adhesive by a conveying means; along the line of motion imparted by said conveying means until the area;
(b) transporting said containers at a predetermined speed within said adhesive application area so that said containers are at least in contact with said adhesive; (c) substantially fixedly supporting the container by attachment means on the transport area while being transported through the agent deposition area; (c) the front panel, the rear panel and both sides of the open end of the container; Applying adhesive by contacting the open edge of the panel and adjacent portions of this edge with two or more rotary adhesive applicators in the adhesive application area; The applicator rotates at a predetermined speed, and the central axis of rotation of each rotary adhesive applicator is held in a non-perpendicular relationship to at least one of the container centerline and the line of motion, and the rotating adhesive applicator The speed of rotation of the adhesive applicators is such that adhesive is removed from the rotary adhesive applicators and along the top edge and top of the panel upon contact of the rotary adhesive applicators with the open edge of the container. creating a relative velocity difference with respect to the moving container such that the container is deposited. 22. A method according to claim 21 in which said relative speed difference is produced by rotating said rotary adhesive applicator in the same direction as a moving container and at a slightly lower speed than said moving container.