JPS6234602B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to parallelepiped objects, particularly paper piles;
Concerning automatic machinery for packing.

For example, something like a cardboard box is used to pack parallelepiped objects, such as paper piles, but the presence of overlapping areas of cardboard prevents the object from having a complete support area. The disadvantage was that the surface was not flat, resulting in damage to the deposit.

In order to overcome this problem, packaging methods have been proposed that use box and lid materials made of flat materials. In this method, the fold and cut lines define a substantially rectangular central region having side sections therealong;
These side sections are adapted to be folded at right angles to the central region. The anterior and posterior sections extend laterally with corresponding pairs of flaps, which flaps can be arranged at right angles to these sections and said central region and are adapted to be glued to the lateral sections. ing.

The automatic machines currently available on the market for packing boxes and lids as described above are satisfactory, both in terms of their somewhat slow operating speeds and in the imperfect quality of their packaging. No, no.

It is therefore an object of the invention to provide an automatic machine for packing parallelepiped objects, in particular paper piles, which has a particularly high output speed and is capable of achieving virtually complete packing. be.

Another object of the invention is to provide an automatic packaging machine that is reliable, works effectively and is easily adaptable to boxes, lids and objects of various sizes.

The device according to the invention for packing parallelepiped objects, in particular paper piles, supplies respective magazines for accommodating box material and lid material, parallelepiped objects, both in flat form. supply route,
means for moving the box material from the corresponding magazine to a packaging area outside the supply path in a flat configuration;
Pressing means for transferring an object from the outlet of the supply path to the central region of the box material, acting perpendicularly on the object disposed in the central region of the box material to move the box material and the object a distance corresponding to the height of the object. Compression means, which only pushes downwards.
a fixed support installation member for folding upwardly the front and rear sections of the box material by means of a gradual downward movement by said compression means, acting upon the downward movement of the box material and folding forward the flaps of said rear section; two spatula members rotatable about vertical axes capable of moving the box material forward; means for dispensing adhesive onto the lateral sections, and for pressing the lateral sections against the flaps so that they are adhered together; a number of opposed rollers disposed on both sides of the outlet of the supply path; means for moving the lid from the corresponding magazine to the area where it rides on the exit from the series of rollers; compression means for pressing the closure downwardly, comprising a number of downwardly curved rod members for subsequently folding the sections and flaps of the closure after being placed thereon; It is characterized by comprising a means.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings.

In the drawing, the fully automatic machine of the invention forms boxes and lids from flat material (blanks) 3-4 and packs parallelepiped objects 2.
The material 3-4 usually consists of cardboard and is provided with cutting and folding lines, these lines extending through the central region 3a-4a, the front and rear and lateral sections 3b-4.
b, 3c-4c, 3d-3e and 4d-4e,
and flaps 3f-3g, 3h-3i, 4f-
4g and 4h-4i, respectively.

The machine 1 includes magazines 5 and 6 that store box materials and lid materials in a flat shape, respectively, a supply path 7 for the object 2, a pressing section 8, compression sections 9 and 10, and a feeding path 1.
1. A series of rollers 12 carried by a frame 13 consisting of upright structural members 14, a transverse member 15a and a longitudinal member 1 fixed to each other by welding.
Contains 5b.

The magazines 5 and 6 carry box materials and lid materials in such a manner that they are suspended from a support frame 13 by corresponding frames 16 and 17. Each magazine and each means for moving the individual boxes and lids from the magazine to the area of use are substantially identical to each other, without regard to their size, and will be described in more detail below. .

The box material 3 and the lid material 4 are arranged in such a way that they are each stacked on top of each other, and on one side they are in contact with the roller 18 and on the other side they are in contact with the roller 19 and each frame 16
and 17. The roller 19 first rotates in the direction of arrow A, and then rotates in the direction of arrow B. The reason for this is that first the edge i-d-f of the hardboard material is dropped by the rollers 18 onto the hardboard support platform 20 (indicated by the dash-dot line I), and then the edge g This is to ensure that -eh is dropped onto the same platform. A pair of sprockets 21 and 22 are located at the bottom of the cardboard support platform, around which a chain 23 is wound. A horizontal track 24 for guiding rollers 25 of a carriage 26 is fixed between the platform and the top of the chain. Link rod 27 to carriage 26
are articulated. This rod 27 is articulated with the chain 23. When the chain 23 is driven, the joints of the link rods 27 move alternately along the top and bottom of the chain;
As a result, the carriage 26 moves toward arrows C and D.
They are moved alternately in the directions. Teeth 28 are fixedly mounted on the carriage 26. These teeth pass through corresponding longitudinal grooves in the support platform 20 and move the box material and lid material placed on the platform in the direction of arrow C, and the machine indicated by the symbol 29 in which the box material contacts the support bracket 29. It is designed to be placed in the area of At the position of this code, the front edge f-b-g and the rear edge i-c of the box material 3
-h is supported by a bracket 29. The object feed path 7 is of the type consisting of a drive roller carried on a frame 31 and an endless conveyor belt 30 wrapped around idle rollers. frame 31
is equipped with a horizontal guide wall 32 and a height adjusting leg 33.
Supported by. A drive of known type is located in the lower part of the frame 31. At the outlet end of the feed channel 7 for transporting the object 2 in the direction of the arrow E, a pneumatic jack 35 is held in the frame 13, which jack is arranged parallel to the longitudinal axis a of the machine and is connected to two horizontal shank 37 It has a horizontal piston carrying a pressure member 36 guided along it. When the jack 35 operates in the direction of arrow F, the pressing member 36 comes into contact with the object in order to bring the object into the area 3a of the box material located at the position indicated by the symbol. A mounting member 38 is fixed to the frame 13 and ensures correct positioning of the object within the box material. In the embodiment shown in the figure, the objects are placed in the box material in pairs stacked in several tiers, so that the width of the pressing member 36 is greater than the width of two closely spaced pairs of objects. It should also be noted that the size has also become slightly smaller. At the outlet end of the feed channel 7, a longitudinal member 39 is fixed to the frame 13 for guiding and positioning a pair of objects riding from the feed channel 7 (position 2I).

On the region 3a of the box material at the position of the symbol, the machine frame has a cross member 40 fixed to this frame, which cross member 40 is integral with the vertical shaft on which the pneumatic jack 41 is mounted. The height of the pneumatic jack 41 relative to the transverse member 40 can be adjusted by means of a screw connected to a manual wheel 42. A horizontal bracket 43 of the compression device 9 is fixed to the lower part of the piston of the jack 41. This piston operates alternately in the directions of arrows G and H, the stroke of which corresponds to the height of the object.
As this piston moves in the direction of arrow G, it simultaneously reaches each pair of objects in position 2, thereby lowering the objects and the box material. Below the bracket 43 there is a support bracket 44 which is guided along a vertical shank 45 and actuated by a jack 46, which
It descends step by step with each operation in step 3. That is,
The support bracket 44 supports the box material below the central region 3a and descends in response to the operation of the compression section 9 (bracket 43). On the sides of the frame there are pairs of members 47 which bend sections 3b and 3c upwards as the box is lowered.

When a predetermined number of pairs of objects are stacked inside the box material by the alternate action of the pressing section 8 and the compression section 9, the box material and the objects are in the position shown by the two-dot chain line in the figure, and the box material Sections 3b and 3c of are approximately perpendicular to region 3a. Practically corresponding to the trailing edge of the box material, the machine frame has a vertical spindle 48 pivotably articulated to this frame.
and 49, and corresponding thin spatulas 50 are integral with these spindles. When the spatula 50 is rotated in the direction of the arrow I - this rotation can be advantageously obtained using a pneumatic jack, not shown in the figure - the flaps 3h and 3i become approximately perpendicular to the areas 3a and 3c. It can be bent forward like this. Beneath the support platform 51 of the box material in the contour extending up to the series of rollers 12 there is a longitudinal member 52;
This elongate member 52 is articulated at the upper ends of L-shaped arms 53 and 54. These L-arms are pivotally connected in their midsections to the upright frame 55 of the machine and are connected at their lower ends to reciprocating spindles 56. The spindle 56 constitutes a joint parallel mechanism together with the longitudinal member 52 and the arms 53 and 54. The lower end of the arm 54 is guided by a cam 57. This cam 57
is configured to raise and lower the elongated member 52 by its rotation.

A horizontal track 58 is installed in the frame for guiding a carriage 59 with idler wheels on the upper part of the longitudinal member 52. This carriage 59 is linked via a connecting rod 60 to an endless chain 61 wound around sprockets 62 and 63. When the chain is driven, the rods 60 carried alternately along their upper and lower sides move the carriage 59 back and forth along the horizontal track 58 (in the direction of arrow M--N). The carriage 59 is articulated at the front end of an L-shaped arm 64 which is connected to an idler wheel 6 sitting transversely on the longitudinal member 52.
Carrying 5. Sprocket 63 and cam 57 work together, and the transmission ratio between one and the other is such that when the carriage moves in the direction of arrow M, longitudinal member 52
is displaced upwardly and the longitudinal member 52 is displaced downwardly when the carriage moves in the direction of arrow N. Thus, while the carriage 59 is retracted in the N direction, the longitudinal member 52 is in the lowered position and the arm 64 is rotated counterclockwise and remains at the bottom of the platform 51.

During movement in the direction of arrow M, the longitudinal member 52 is in the raised position and the arm 64 rotates clockwise to act on the box material and its object, lifting the box material from the position M.
Forcibly move in a direction. On the side of the frame there is a convergence bend setting member 66 which determines what condition the flaps 3f-3g are folded back to. That is, the flaps 3f to 3g are bent at right angles to the region 3a and the section 3b.

Depending on the position of the mounting member 66 on the frame 13, adhesive dispensing devices 67 are provided, which are designed to apply a predetermined amount of adhesive onto the sections 3d-3e. ing. A hot melt should ideally be used to achieve an instant bonding operation. Installation member 66
Behind the is a tubular mounting member 68 which starts at the level of the platform 51, projects upwards and extends beyond the platform 51.
converge to the side of the central region. As the box material moves forward, the mounting members 68 move the sections 3d-3e at right angles to the areas 3a lying against the respective flaps 3i-3f and 3h-3g. Fold it upward.

Downstream of the installation member 68 is a series of rollers 12 carried vertically by a frame 69.
Frame 69 has a pair of transverse shanks 70 integral therewith, which are guided in horizontal shaft bushes 70a fixed to frame 13. The frame 69 is remote from the axis a of the machine, the distance of which is adjustable via a manual wheel 71 integrated with a corresponding adjustment screw.

An endless belt is wound around the roller 12. The roller 12 has flaps 3i-3f-3.
Sections 3d-3e are compressed against h-3g and held compressed in the direction of arrow o by electrical means of known type to permit tightening of the adhesive.

The drive device 73 is attached to the roller,
Sprocket 63, cam 57 and roller 12 are driven through suitable speed reduction means.

The box already formed around the object continues to advance in the direction of arrow M and sits transversely on a series of belts wrapped around and supported by transverse rollers 74. The rollers 74 are powered in a known manner by a drive 74a until the boxes hit a lateral stop 75. The stopper 75 is fixed to a piston of a pneumatic jack 75a. This pneumatic jack 75a is designed to pull down the stopper 75 below the plane on which the box rests to allow the box to advance along the belt at the same time that the lid is placed on the box. There is.

The individual lids, brought to the locations indicated by the same means as described above for the boxes, are placed on curved crossbars 7.
It is held in position by a lateral bracket 76 connected to 7. Curved crossbar 77 is directed downward and is fixed to the lower wall of plate 78.
The plate 78 is fastened to the piston of a pneumatic jack 79 by means of a compression section 10 and carries a shank 80 integral therewith. These shank 80
are guided in corresponding vertical shaft bushes fixed to the frame 13 of the machine.

Beneath the plate 78, a platform 81 is supported by a spindle 82 which extends slidably through the plate 78. A compression coil spring 83 is interposed between the plate and the platform.

When the plate 78 is lowered in the direction of the arrow P by the action of the jack 79, the lid initially lies flat on the box and on the object arranged on the outline of the symbol. Subsequently, the platform 81 presses the area 4a of the lid onto the object. When the plate 78 is lowered further and the platform 81 is stopped by an object, the crossbar 77 first determines the downward bending of the sections 4b-4c, and then the crossbar 77a bends the flaps 4i-4h-4f. -4
Fold g forward and backward, and finally fold the horizontal bar 77
b bends sections 4d-4e downwards.
This continuous bending action is performed by the vertical portions of the curved transverse bars 77-77a-77b of different lengths.

Glue dispensing device 84 at the outlet from the magazine 6
and adhesive is applied to the upper surfaces of flaps 4i-4h-4f-4g, sections 4d-4e are bent, and the above-mentioned flaps 4i-4h-4
Pressed onto f-4g, these sections 4
Note that d-4e becomes glued to the flap.

Below the adhesive dispensing device 84 and spaced apart therefrom by a distance equal to the thickness of the lidding, another adhesive dispensing device (not visible in the drawing because it is covered by the dispensing device 84) is located. and these serve to apply adhesive to the lower surface of flaps 4i-4h-4f-4g and section 4.
b-4c to allow the lid to be held on the box.

These continuous operations are accomplished through the use of electronic sensing and control equipment.

The invention, constructed as described above, achieves its intended purpose and in particular makes it possible to rapidly pack virtually completely parallelepiped objects.

It is also possible to make various modified embodiments without departing from the basic structure of the invention. Furthermore, all parts can be replaced by other parts of equal technical advantage.

In practice, the materials used and the shape, dimensions, etc. can be varied to meet the requirements without departing from the scope of protection of the invention.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of one box and one lid; FIG. 2 is a schematic diagram of the machine according to the invention seen from the front;
FIG. 3 is a schematic side view of the same machine, and FIG. 4 is a plan view of the same machine. 5... Magazine for box material, 6... Magazine for lid material, 7... Supply path, 8... Pressing device, 9... Compressing device, 10... Compressing device, 12... Roller, 47
... Fixed horizontal member, 50 ... Spatula member, 66, 68
... Fixed installation member, 67, 84 ... Adhesive distribution device, 77 ... Rod member, 3a ... Central region, 3b,
3c...front and rear section, 3c, 3d...
...Side section, 3f, 3g, 3h, 3i...
Flap.

Claims (1)

[Scope of Claims] 1. Respective magazines 5, 6 that accommodate the box material 3 and the lid material 4 in a flat shape; a supply path 7 for supplying a parallelepiped-shaped object; A device for transferring the box material in a flat shape to the packaging area on the outside; a pressing device 8 for transferring the object from the outlet of the supply path to the central area of the box material; A compression device 9 that acts in the vertical direction and pushes the box material and the object downward by a distance corresponding to the height of the object; a compression device 9 that supports the lower surface of the central region of the box material and adjusts the raised position of the box material according to the operation of the compression device; a support device 44 that is movable between a lowered position and a fixed lateral portion that bends the front section 3b and the rear section 3c of the box material upward as the box material is gradually moved downward by the action of the compression device; elements 47; two spatula elements 50 rotatable about a vertical axis, actuated following the downward movement of the box material and capable of folding the flaps 3h and 3i of said rear section forward with respect to the direction of advancement; said box material; a feed path having means 64 for moving forward; provided on both sides of the feed path, when the box material advances, the flaps 3f and 3g of the front section are folded back and the lateral sections 3d and 3e are folded back; fixed installation members 66 and 68 for folding upwards; devices 67 for dispensing adhesive onto said lateral sections; disposed on either side of the feed channel outlet for pressing said lateral sections against said flaps so as to be glued together; a number of opposing rollers 12; a device for moving the lid in a flat configuration from the corresponding magazine to an area facing the exit from said series of rollers; successively after the central area of the lid is located on the object Compressing device 10 for pressing the lid downwards, comprising rod members 77 curved downward and of various heights for folding the sections and flaps of the lid; applying adhesive to said flaps of the lid; An automatic machine for packing parallelepiped objects, comprising a dispensing device 84; 2. The device for moving boxes and lids comprises two rollers 18 and 19, respectively, for supporting the lateral ends of the boxes or lids, and moves the individual boxes or lids onto a support platform 20. A machine according to claim 1, wherein the machine is driven to drop continuously. 3. Below the support platform 20 there is a carriage 26 slidably guided, in the upper part of which there are teeth 2 which can be projected onto said platform.
8. A machine according to claim 2, in which the box material 8 is carried and presses the edges of these box materials or lid materials. 4. The box material feed path is constituted by at least one L-shaped arm 64, which protrudes above the box material support platform 51 during feeding and is retracted below the platform when inactive. Machines listed in item 1 of the scope of 5. The L-shaped arm has its horizontal part connected to a carriage 59 guided along a longitudinal track 58, said arm sitting transversely on the longitudinal member 52 at a point corresponding to its top. The machine described in paragraph 4. 6. The longitudinal member 52 is articulated in a parallelogram manner to the frame of the machine via arms 54 and 53 and is raised or lowered by a cam 57 such that when the longitudinal member is lowered, the upper end of the vertical part of the L-arm 6. The machine according to claim 5, wherein the machine is located below a platform 51 on which the box material slides. 7. Machine according to claim 5, in which the carriage 59 is connected by a link rod 60 to an endless chain 61, the upper and lower parts of which are substantially parallel with respect to the longitudinal axis of the machine. 8. an endless chain surrounding the series of rollers 12;
Machine according to claim 1, characterized in that these rollers are pressed in the direction of the central longitudinal axis of the machine by corresponding resilient members. 9 The device for compressing the lid material slidably carries in its lower part, via a resilient member 83, a platform 81 for pressing the central region of the lid onto the object at the same time as the curved bar member is lowered. A machine according to claim 1. 10 The fixed mounting elements of the feed channel include two converging curved mounting members 66 for folding the flaps of said sections backwards and of the longitudinal axis of the machine for lifting them from the box support platform and folding the side sections upwards. Machine according to claim 1, comprising two inclined tubular installation members 68 converging towards each other. 11. The machine according to claim 1, wherein below the object compression device there is a support bracket 44 which can be lowered in stages, said bracket being vertically guided and actuated by a vertical shaft jack 46. . 12 A device for dispensing adhesive 84 onto the lidding material is installed at the outlet from said magazine for lidding and for applying the adhesive to the flaps to form the lidding.
2. A machine as claimed in claim 1, including two upper dispensing devices and two lower dispensing devices for applying adhesive to the bottom of the flap and front and rear sections to secure the lid to the box.