JP2001038824A - Automatic apparatus for preparing semi-packaged article from blank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of movable members and to transfer to a semi- packaged article is done in a short time by fixing at least a part of apparatuses concerning a frame and a supply apparatus, and installing an apparatus which holds the surface of a mold always in parallel to the surface itself at an optional position of a route. SOLUTION: In an apparatus 50, a frame for supporting a supply apparatus (belt) 52 sending molds 53 is installed. Each surface of the mold 53 is moved in parallel with the surface itself by the belt 52. In a section S1, a blank meets the upper surface of the mold 53, and in a section S2, a folding part is folded by a pair of rollers 57. In a section S3, the folding part is folded by a pair of rollers 58, 59, and in a section S4, a mark is formed on the outer surface. Next, an adhesive substance is given to the inner surface of a folding part in a section S5, and the folding part is contacted with an inclined plane 64 for folding in a section S6. Next, the folding part is folded at a right angle by a pair of belts 66 via section S7, and in a section S8, a semi-packaged article is discharged from the mold 53.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an automatic device for preparing semi-packages from blanks, preferably made of cardboard.

[0002]

2. Description of the Related Art In the packaging sector, automatic devices for packing articles inside cartons or boxes are known. These cartons are generally made from blanks of cardboard or similar material.

For example, Italian Patent Application No. BO97A0
In No. 00593, an automated apparatus in which a properly configured blank is folded directly on the product to be packaged, while the product is fed along a pre-arranged path inside the machine itself Is described.

[0004]

The above-mentioned machines, while leaving excellent results, are open on one side and allow empty semi-packages to be inserted with products and corresponding explanatory prints through this open part. Not suitable for preparation.

[0005] In this connection, from this current situation,
A "semi-packaged product" is a box in which the blank is folded into a cup and is opened on at least one side for the introduction of products and explanatory prints by a further machine arranged downstream of the automatic device according to the invention. It can be said that it means a folded blank.

[0006] As a result, it is an object of the present invention to provide an automatic device capable of producing semi-packages of the type described above and having the least possible number of movable members.

[0007] Additionally, optionally, the automated apparatus for creating the subject matter of the present invention is fully utilized by supplying and distributing vacuum and compressed air onto a mold surface along a passage located inside the machine itself. it can.

[0008]

Since the automatic device according to the invention has only a limited number of movable members, the transition from the blank to the corresponding semi-packaged product takes place in a short time and the inertia of the movable mechanical part is reduced. Avoid the complex management of at the same time.

Furthermore, the automatic device according to the invention can process a plurality of blanks arranged one after the other and sent along the same path simultaneously. In addition, some movable members are simple to manufacture, easy to synchronize together, and do not require complex electronic programs to manage the movement of the movable members.

In order to facilitate an understanding of the present invention, the blanks described in the aforementioned Italian Patent Application No. BO97A000593 will be described below, but in order to produce semi-packaged articles from blanks of any kind. It will be appreciated that the described and claimed automation device is used. If the type of blank changes,
It is necessary to reprogram at least part of the steps forming the circulation process of folding the blank on the mold.

As a result, according to the present invention, a half-package corresponding to a frame, at least one mold formed to receive a blank, and a supply device for feeding at least one mold along a pre-formed path. A plurality of devices arranged along a path to fold each portion of the blank on a mold to form an article, comprising: Wherein at least a part of the plurality of devices is fixed with respect to the frame and the feeding device, provided at any point in the path with a device which always holds the face of the mold parallel to the face itself. An automatic device for preparing the package is provided.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described with reference to the accompanying drawings, which show non-limiting embodiments of the invention. Before describing in detail the automatic apparatus for producing the object of the present invention, it is necessary to describe the blank 20 with reference to FIGS.

This blank 20 has already been fully disclosed in Italian Patent Application No. BO97A000593.

The blank 20 shown in FIG. 1 is a strip-shaped cardboard 30 (not shown) of a predetermined length.
Created starting from. Square-shaped cardboard 30 of this length
From the part A1 at one end in the longitudinal direction of the cardboard 30
And A2 have been cut and removed to form an outer edge as shown in FIG. More incisions L
1, L2, L3 and L4 are shown in FIG.
Are formed in the blank 20 by forming deep folds indicated by dotted lines. Further, the leading edge 20a and the trailing edge 20b can be recognized on the blank 20.

In particular, the blank 20 comprises a rear wall 24 connected together along one side by a front side 25,
And a front wall 23. The blank 20 has on each side a pair of square end folds 26, 27 which are formed to overlap in the assembled configuration of the semi-package 40 (FIG. 2).

On the opposite side of the front side 25, ie on the rear wall 24, there is a rear side 28 on which a foldable tab 28a is provided on the outside. This tab allows the completed package (not shown) to be opened. The folded portion 27 at the square end is further provided with a notch L for insertion.
1, L2, L3 and L4, resulting in a fold 29 at each pair of small square ends disposed across fold 27
a, 29b.

FIG. 2 shows the blank 20 folded to create a half-open semi-packaged product 40. In particular,
The form of the semi-packaged product 40 shown in FIG. 2 is basically obtained from the output from an automatic device for producing the object of the present invention.

In FIG. 3 (a), reference numeral 50 designates an object of the present invention for the purpose of representing the circulation step in which the blank 20 must be carried out to make the semi-packaged article 40 (FIGS. 1 and 2). 1 shows a schematic view of the assembly of an automatic device for producing a.

For convenience of illustration, FIG. 3 (a) shows only some of the components that make up device 50.

The device 50 comprises, first of all, a frame 5 formed to support a supply device 52 for feeding a plurality of dies 53.
1 (FIG. 11). In a suitable example, the supply device 52
Is represented by a belt 52, and is preferably, but not necessarily, made of a plastic material having a certain flexibility. The belt 52 is described later (FIG. 11).
4 rotated by the device shown in even more detail at
It is wound around two snub pulleys 54a, 54b (FIGS. 4 and 11). The belt 52 is arranged so as to move each mold 53 along the path P clockwise in the embodiment of FIG.

The shaft 55 is integrally associated with each mold 53 and idles with respect to the belt 52 (FIGS. 5 and 8).
It is supported by the belt 52 by the support system described below.

FIG. 3 shows in detail the circulation steps performed by each mold 53 associated with each blank 20.

In department S ₀ , blank 20 is not yet associated with the corresponding mold 53. Surfaces 53a to 53 of mold 53
f is moved by the support belt 52 described above in parallel with the surfaces 53a to 53f themselves.

The surfaces 53a to 53f of the mold 53 are
To move the mold 53 along the aforementioned path P so that it is always kept parallel to 53f itself, it will be appreciated that a particular device, described in more detail below (FIG. 4), is used. It is necessary to mention it in addition.

Each mold 53 is formed substantially like a parallelepiped, and is integrally connected to the shaft 55 described above. Therefore, as shown in more detail in FIGS.
Each mold 53 has a top surface 53a, a bottom surface 53b, and a front surface 53c.
And the two side surfaces 53d, 53e and the shaft 55
And a rear surface 53f connected to the rear surface.

At least the upper surface 53a and the lower surface 53b
On these two surfaces, the suction cup type gripping points 56a and 5
6b are provided with pneumatic means for forming each, while in the end, for the purpose of more clarity,
An outlet for compressed air may be provided on the front surface 53c.

[0027] Continuing with the analysis of the path P shown in FIG. 3 (a), after the division S _0, department S ₁ of the first contact occurs between the blank 20 and the mold 53 is disposed. In particular,
The blank 20 is brought into contact with the upper surface 53a of the mold 53 by a mechanical device known per se (not shown).
Is inserted across the path P, during which the mold 53
Is moved along the path P by being pulled by the belt 52 (FIG. 3B). As shown in FIG. 3 (k), the trailing edge 20b (FIG. 1) of the blank 20 is located at a position corresponding to the edge of the corner formed by the intersection of the two surfaces 53a and 53f of the mold 53. , Blank 20 is inserted.

The cuts L1, L2, L3, L4 and the deep creases (FIG. 1) indicated by the dotted lines make it possible to produce the necessary semi-package 20 (FIG. 2) with the corresponding mold 5.
It is also clear that the blank 20 is arranged with respect to the mold 53 so that the various parts of the blank 20 on 3 are easy to bend.

The type when 53 reaches the department S _1, the vacuum generator via a suction pipe plurality of top suction cups 56a described above to be connected to (not shown) (Figures 5 and 6), the mold 53 The blank 20 on the upper surface 53a of the blank.

The method of generating a vacuum on surfaces 53a, 53b is more clearly described below (FIGS. 4-11).

As shown in FIG. 3A and FIG. 5, as a result of applying a vacuum to the suction cup 56a, the blank 2
The mold 53 has a width l approximately equal to the width of the parts 23, 24, 25, 28, 28a of the blank 20 (FIG. 1) so that the zero portions 24, 28, 28a abut and press on the upper surface 53a of the mold 53. Having. Further, as described above, the rear edge portion 20b of the blank 20 is connected to the upper surface 53a and the rear surface 53 of the mold 53.
must be located at the intersecting edges of f.

At this point, as a result of the suction action of the suction cup 56a, the blank 20 held by the corresponding mold 53 is
Are further moved along the path P, it reaches a department S _2, folds 29a of the edge of the small the department S ₂ rectangles,
It is bent by a pair of rollers 57 arranged laterally with respect to the mold 53. In this way, the folding portion 29a at the end of the small square arranges the folding portion 29a itself perpendicular to the surface 53a of the mold 53. Eventually, the blank 20 is shown in FIG.
The configuration shown in (l) is obtained.

As shown in FIG. 3A again, the mold 53
When but reaching department S _3, folding portion 29b of the folds 27 and the end of a small square edge of the rectangle are bent by a pair of rollers 58 at the same time, therefore, the folds 27 of the end of the square 29b Are arranged perpendicular to the surface 53a of the mold 53 and therefore perpendicular to the parts 24, 28, 28a of the blank 20. In the same department S _3, the roller 59 is disposed laterally with respect to the roller 58 of the pair of the foregoing, the front wall 23 of the blank 20, front side 25 and the folds 26 of the edge of the rectangle, with respect to the plane 53a (FIG. 1) Folds at 90 °.

Advantageously, as shown in FIGS. 3 (a) and 5, the height of the mold 53 is the same as the width h of the fold 29a at the square end of the blank 20 (FIG. 1) and the front side 25. Since they must be equal, the front side 25 and the fold 29 at the square end
Both a may completely contact the front surface 53c of the mold 53. The new construction of the blank 20 with respect to the mold 53 is shown in FIG.
(D) and FIG. 3 (m).

The mold 53 is in the department S ₄ continues to be moved along the path P, the outer surface of the folding portion 26 of the edge of the rectangle are marked (marking) (mark). The engraving operation of the data (date, location, etc.) on the package is performed by two pairs of marking rollers 60 as in the solution shown in FIG. 3 (n), or each of them is shown in FIG. As in the embodiment shown in FIG. 3 (o), only one pair of marking nozzles 61 ((FIG. 3 (o)) each formed so as to eject an ink jet to each of the folded portions 26 at the square ends. Is shown).

Department S_FiveInstead, a pair of secretions (g
umming) By the nozzle 62, the department S _FourEngraved on the outside with
Attached) on the inner surface of the folded portion 26 of the same square end
An adhesive substance is provided. Easy application of adhesive substances
Each of them is located on the opposite side of each secretion nozzle 62
Contrast (contrast) element 63 (one in FIG. 3 (p)
(Illustrated by an injury).

Finally, as shown in FIG. 1, an adhesive area 26a is formed on each one of the inner surfaces of the square-end fold 26.

As can be seen from FIG. 3A, the department S ₁
And among departments S _5, the mold 53 is moved along a substantially vertical branch path P ₁ of the path P, at the same time, always held parallel to the upper surface 53a and upper surface 53a itself.

[0039] After the department S _5, the mold 53 is, again belt 5
Begins to move horizontally along the branch path P ₂ are disposed is substantially horizontal and the branch path P ₁ described above in a continuous as a result of being pulled by 2.

The straight line (stretch) unit in department S ₆ located at the beginning of the P _2, front wall 23 and a folded portion 26 of the edge of the rectangle
Has a sloped plane that is the hypotenuse of a right triangle having a height d equal to the height d.

During the horizontal movement of the mold 53, the front wall 23 and the folded portion 26 at the end of the square are always parallel to the corresponding surfaces 53a to 53f, and the folded portions 26 at the ends of the squares are 90
Makes contact with the inclined plane 64 that folds the fold 26 at an angle of °.
As shown in FIG. 5, the above-mentioned suction cup 56b which is acted on by a vacuum generator (not shown) is provided on the bottom surface 53b of the mold 53. The suction cup 56b is
The front wall 23 of the blank 20 can be turned upside down on the bottom surface 53b of the mold 53.

The configuration of the blank 20 with respect to the mold 53 before and after the action of the inclined plane 64 on the blank 20 is shown in FIG.
And FIG. 3 (h).

Next, the blank 20 carried by each mold 53 arrives at the department S ₇ , and a third branch path P _{3 that} is almost vertical and parallel to the _first branch path P ₁ starts from this department S _7. I do. In this position, the blank 20 for the corresponding mold 53 has a configuration as shown in FIGS. 3 (h) and 3 (i). Then, the department S _7, folds 26 of the edge of the rectangle are arranged horizontally. The inner surface of the square end fold 26 with the adhesive area 26a is ready to be folded toward the outer surface of the square end fold 27, each of which is a respective Side 53d, 53e
Placed in

In order to ensure that the square end fold 27 on the sides 53d, 53e is closed,
d, 53e have respective suction cups 65a, 65a, connected to the same vacuum generating system to which the aforementioned suction cups 56a, 56b are connected, as will be described more clearly below.
65b (FIGS. 5 to 7) may be provided.

In order to realize the required 90 ° folding (folding) of the folded portion 26 at the square end, a pulley 67 is used.
And a pair of belts 66 driven by a motor by mechanical means not shown in FIG.
Granted on _three . Since the belt 66 accompanies the downward movement of the mold 53 along the path P at the same linear speed as the supply speed of the mold 53 itself, it does not cause any scratches on the outer surface of the folded blank 20.

In the embodiment not shown, the belt 66
May be idle on the pulley 67.

The belt 66 has a folded portion 27 at the end of each square.
Not only can the folds 26 at each square end above be folded, but also the folds 26, 27 at the square ends are pressed against each other, so that each adhesive section 26a (FIG. 1) causes each square to be folded. This facilitates bonding the inner surface of each square end fold 26 to the outer surface of the end fold 27. Thus, the semi-packaged product 40 shown in FIGS. 2 and 3 (j) is created.

To speed up the bonding process, the third vertical branch path P ₃ of the path P may be provided with any type of drying device (not shown), for example a hot air generator.

At an intermediate point along the _fourth branch path P ₄ , the department S ₈ , the semi-packaged product 40 is compressed air blown out from a port 68 (FIGS. 7 and 8) provided on the front surface 53 c of the mold 53. It is discharged from the mold 53 by the jet.

More specifically, the compressed air jet ejected from the mouth 68 is formed into a semi-package composed of two small square end folded portions 29 a overlapped on the front side surface 25 and the front side surface 25. Acts on the bottom surface of the product 40, and the semi-packaged product 40
3 slips off the rear wall 24, rear side 28 and tab 28
a is on the surface 53a, the front wall 23 is on the surface 53b, and the inner surface of the folded portion 27 at the end of each square slides on the side surfaces 53d and 53e.

As described above, the continuation of the branch path P ₃ ,
A further branch path P ₄ parallel to the branch path P ₂ in the horizontal is given. In this branch path P _4, as described above, since the half-package 40 is ejected by the department S _8, the mold 53
From here, without the semi-package 40, can be sent by the belt 52 to the department S ₀ and a new circulation process for the production of a new semi-package 40 can be started again.
Actually, four branch paths P continuously arranged one after another
_1, P _2, P ₃ and path P comprised of P _4, in the present paper plane, which is substantially square shape.

It is clear that all operations performed in the departments S ₀ -S ₈ can be managed and controlled by an electronic control unit (not shown).

As described above, the belt 53 forms the mold 53.
It was necessary to find a system for securing the mold 53 to the belt 52 so that the mold 53 could be pulled and, at the same time, the mold 53 could be rotated with respect to the belt 52 itself. To accomplish this, the solutions shown in FIGS. 5 and 8 have been applied.

The four blocks 70 are fixed by bonding on the belt 52 and are preferably, but not necessarily, made of a plastic material.
1 traverses each of the blocks 70, the axis of symmetry of this through-hole 71 being parallel to the axis 55 (FIGS. 5 and 8) and the axis of longitudinal symmetry A of the mold 53 and transverse to the direction of travel of the belt 52. . The four blocks 70 are connected to the edge 52 of the belt 52.
The two are bonded at a and 52b.

The four blocks 70 can be considered as two separate pairs. Each of the pairs has an edge 52a
And a second block 70 disposed on the edge 52b. Each spindle 72 traverses a pair of through holes 71 and has two edges 52
a, 52b slightly projecting. The end 72a of the spindle 72 arranged on the side where the edge 52a exists,
The same is true of the end 72b, which is connected together by a plate 73 and is located at the edge 52b.

Each plate 73 is provided with a through hole 74 through which the shaft 55 can be traversed. The shaft 55 is integral with the mold 53. The spindle 72 is a Seeger ring 7
3a, it is fixed to each plate 73, while a seagull ring 73b is provided for the shaft 55.

As shown in FIGS. 5 and 8 again, a vacuum and compressed air distributor connected to a distributor between the mold 53 and the edge 52a of the belt 52, as will be described in more detail below. There are 75.

As described above, the distributor 75 has the through hole 76 through which the shaft 55 integral with the mold 53 crosses. Further, the distributor 75 includes a plate 73 facing the side where the edge 52a is arranged.
And a pair of screws 77 (FIGS. 5 and 6).
Eventually the distributor 75 idles with respect to the shaft 55, but the distributor 75 is integral with the plate 73 and thus in fact the belt 52.

For the above-mentioned reason, each surface 53a-53 of the mold 53
Instead, the distributor 75 must follow the path of the belt 52 while the mold 53 is moving along the path P, while the surface 53f is always kept parallel to the surfaces 53a to 53f itself. It is. Thus, the distributor 75 rotates relative to the mold 53, and this rotation causes the face 5 of the mold 53 to rotate in accordance with the procedure described in more detail below.
Compressed air or vacuum on 3a-53e can be distributed.

As described above, the automatic device 50 is
(FIG. 4), and when the mold 53 moves along the above-described path P, the surfaces 53a to 53f of the mold 53
3f is always kept parallel to itself.

This device 80 is shown in more detail in FIG. 4 and has been removed for clarity in FIG. 3 (a), but the device 80 itself has also been removed from the frame 51 (FIG. 11).
And, in one particular embodiment thereof, comprises a second belt 81 forming a path T (FIG. 4). The shaft 82 as well as the shaft 55 shown in connection with the belt 52
Is provided on this belt 81 for each mold 53.

Actually, four blocks 83 (2 in FIG. 4)
Only one is shown, see also FIGS. 8 and 11), which are secured by adhesive to the belt 81 and are preferably, but not necessarily, made of plastic material,
Each through hole traverses each of the three, and the axis of symmetry of this through hole is parallel to the axis A described above. Two of the four blocks 83 are bonded at edges 81 a and 81 b of the belt 81.

The four blocks 83 can be considered as two separate pairs. Each of the pairs includes a first block 83 disposed on the edge 81a and a second block 83 disposed on the edge 81b. Each spindle 84 (FIG. 4) traverses a pair of through holes and has two edges 8
It slightly projects with respect to 1a and 81b. The end of the spindle 84, which is arranged on the side where the edge 81a is located,
6 (FIG. 4). The ends located at the edge 81b are similar.

Each plate 86 has a through hole 87 through which the shaft 82 can be traversed.

The shafts 55 and 82 are connected together by a connecting rod 88 (FIGS. 8 and 11).

The connecting rod 88 and the shaft 8 integral with the mold 53
2 and the shaft 55 have a configuration determined by the position occupied by the device 80 with respect to the belt 52, while the length of the connecting rod 88 depends on the distance between the belt 52 and the device 80.

As particularly shown in FIGS. 5 to 8, the distributor 75 has a substantially parallelepiped structure, and has a surface 53 f of the mold 53.
, A rear face 75b connected to the plate 73 by screws 77, an opening 89 for connecting a vacuum generator (see below) to the distributor 75 and a connection to a compressed air generator (see below). And a bottom surface 75c (FIG. 8), both of which are provided with both openings 90.

Instead of the belt device 80 described above, for example, a guide extending substantially parallel to the belt 52 and having a pad mechanically connected to the shaft 55 slidable thereon,
Obviously, any other device suitable for this purpose may be used.

8, 9 and 10, the distributor 75
1 shows a vacuum distribution system and a pressurized air system, respectively, controlled by the system.

In practice, the distribution of the vacuum inside the distributor 75 will be described.
A semi-annular passage 91 is provided which is continuously and pneumatically connected to the shaft 55, while the shaft 55 has a pair of inlets 93, 94 arranged at its periphery at 180 ° with respect to each other. Each inlet is connected to the tubes 95 and 96 that generate a vacuum on the top surface 53a and bottom surface 53b of the mold 53 (FIG. 8), respectively.

As shown in more detail in FIG.
The relative rotation of the distributor 75 with respect to the shaft 55, which is integral with the mold 53, as described above, allows the inlet 93 and / or the inlet 94 to be in pneumatic communication, or optionally on a required portion of the blank 20. Is sucked by the suction cup 56a or the suction cup 56b, respectively. In other words, from a hydrodynamic standpoint, the semi-annular passage 91 and the inlets 93, 94 can act as two-way valves. Obviously, the angle of the opening of the semi-annular passage 91 must exceed 180 ° so that the tubes 95, 96 can operate simultaneously. Surface 53a, 5
The width of this angle is determined by the law governing the opening and closing of the tubes 95, 96 so that the instant of simultaneous vacuum generation at 3b is along path P.

As shown in the circulation step of FIG. 3A, different suction cups on the other surfaces 53c, 53d and 53e of the mold 53 are used to blank the various surfaces 53c to 53e. Obviously, it can be pneumatically connected to the tubes 95, 96 depending on the section of 20.

The compressed air distribution system is similar to the system described for vacuum.

In practice, as shown in FIGS. 8 and 10, an annular passage 97 pneumatically connected to the opening 90 via the passage 98 is provided inside the distributor 75. Axis A
The shaft 55 parallel to the axis A is provided with an inlet 99 pneumatically connected to the pipe 100 by means of a passage 101 perpendicular to the axis A. The pipe 100 reaches the aforementioned mouth 68.
Therefore, the compressed air is therefore able to be sent to the mouth 68, the semi-packaged goods in department S ₈ shown in FIG. 3 (a) 40
Is discharged as required.

As shown in FIG. 10, the opening 90 is connected to the annular passage 97 by a threaded hole 98. As shown in FIGS. 4 and 11, surfaces 53a to 53e of the mold 53 are provided.
To generate a vacuum on top or carry compressed air
The distributor 75 is pneumatically connected to a distribution disk 102 which is rotated at the same speed as the belts 52, 81 by means described in detail below. For this reason, the distributor 7
5 are respectively pneumatically connected to the respective L-shaped pipes 105, 106 (FIG. 11) by respective coiled elastic tubes 103, 104. ing. The pipes 105 and 106 extend from the outer edge 102 a of the distribution disk 102 to the distribution disk 10.
2 itself to the surface 102b.

The distribution disk 102 is supported by a shaft 107 which is integral with the frame 51 and is supported by a pair of bearings 108 in a sleeve 109.
Supported by Sleeve 109 traverses through hole 51a provided in frame 51 and is integral with frame 51 by a flange 110 secured to frame 51 with screws 111 (only one screw is shown in FIG. 11). Has been. The shaft 107 has one first end 107a to which the aforementioned distribution disk 102 is fixed in a conventional manner, and one second end 107b to which the pulley 112 is fitted. In a manner described in more detail below.

As shown in FIG. 11, the surface 53 of the mold 53
The apparatus for distributing vacuum and compressed air on a-53e comprises a pair of rigid cups 114, 115 and pins arranged at 120 ° with respect to each other (not shown in FIG. 8).
Fixed disk 1 integrated with frame 51 by
13 is further provided.

The cup 114 passes through the hole 51b provided on the frame 51 and is fixed to the frame 51 by tightening screws. Cup 114 fluidly connects a vacuum generator (not shown) with pipe 116 and pipe 11
6 communicates with a semi-annular groove 117 (see FIG. 4) formed on the surface 113a of the fixed disk 113,
7 follows in the form of an edge 102a of the distribution disk 102 for stretching.

The surface 113a of the fixed disk 113 is constantly pressed against the surface 102b of the distribution disk 102.
At the end of the cup 114 inserted into the pipe 116,
A coil spring 118 is provided.

Similarly, the cup 115 passes through a hole 51c provided in the frame 51 and is fixed to the frame 51 by tightening screws. The cup 115 fluidly connects a compressed air generator (not shown) to the pipe 119, and the pipe 119 is connected to the surface 113a of the fixed disk 113.
It communicates with a port 120 (see FIG. 4) provided above.

The surface 113a of the fixed disk 113 is constantly pressed against the surface 102b of the distribution disk 102.
At the end of the cup 115 inserted into the pipe 119,
A coil spring 121 is provided.

As described above, cup 11
4 and a spring 118 respectively associated with the cup 115
And 121, each spring (not shown) is associated with a pin (not shown) that completes the placement of the three elements for securing the fixed disk 113 to the frame 51.

In use, the distribution disk 102 is rotated by the pulley 112 in a predetermined manner, whereby
The surface 102b slides on the surface 113a of the fixed disk 113. At the same time, the pipe 105 associated with each coiled elastic tube 103 has a straight portion of the path P (FIG. 3 (a)).
Only is periodically communicated with the semi-annular groove 117 provided on the stationary disk 113 to generate a vacuum when desired on the surfaces 53a-53e of the mold 53. As can be seen, the operation of the suction cups 56a and 56b is controlled by the distributor 75 during rotation about the shaft 55 integral with the mold 53. Alternatively, a pad (not shown) connected to pipes 95, 96 for vacuum distribution may be provided on surface 53d and surface 53e, respectively, or on pad 65c associated with surface 53c.
Can be operated, and at least one portion of the path P is subjected to the entire circulating step of sucking a part of the blank 20 on the surfaces 53c to 53e (FIG. 3 ( a)).

After rotation of the distribution disk 102, which rotates with respect to the fixed disk 113, the pipe 106 connected to the coiled elastic tube 104 communicates with the port 120 in fluid communication, and the continuously arranged cup 115 and pipe 119
Compressed air coming from passes through port 120. Next, the outlet of the pipe 106 on the surface 102b is connected to the port 120.
At the moment when it comes into contact with, the jet of compressed air is generated on the surface 113a, and the jet of compressed air flows through the coiled elastic tube 104 and the pipe 100 as shown in FIG. As seen in connection with the department S8 in a), the semi-packaged product 40 is discharged to the opening 68 arranged on the surface 53c.

During rotation of the distribution disk 102 with respect to the fixed disk 113, the surface 10 of the distribution disk 102
2b except at the moment when the outlet of the passage 106 coincides with the port 120 provided on the surface 113a of the fixed disk 113,
It is incidentally stated that the compressed air is closed off by b and the compressed air is generated continuously, but does not exit the port 120.

In addition, special care must be taken in the manufacture of the surfaces 102b and 113 so that the reciprocating sliding movement does not generate frictional heat which is detrimental to the proper operation of the vacuum and compressed air distributor. No.

With particular reference to FIG. 11, two belts 5
The mechanism for moving the 2, 81 and the system of rotation of the distribution disk 102 are shown here.

As already described, the belts 52, 81
And the distribution disk 102 must have approximately the same peripheral velocity value for the two actions to be performed. First, in order to realize the necessary parallel action of the surfaces 53a to 53f with respect to the surface itself during the movement of the mold 53 along the path P (FIG. 3 (a)), the belt 81 accompanies the belt 52. . Second, each pair of tubes 103, 104 has
The action to follow. Transition point from the branch P ₁ into the branch P _2, as tubes 103, 104 in each mold 53 at the corners of the path P, such as transition point from the branch P ₂ to the branch P ₃ can follow the tube 103 , 104 is made of a coiled, easily deformable plastic material.

The rotation of the movable part of the automatic device 50 is performed by the drive shaft 12 rotated by a motor assembly (not shown).
2 caused by The drive shaft 122 includes a plurality of screws 12
5 (only one of the screws 125 is shown in FIG. 11) connected to the first toothed drive pulley 123a. Further, the first driving pulley 123a idles on a plurality of bearings 126 supported by a spindle 127 integrated with the frame 51 by known mechanical means. Further, since the first driving pulley 123a has teeth, the belt 81 with teeth can be moved. As can be seen, the belt 81 comprises a first drive pulley 123a which is a set of three pulleys 123b (only one of the pulleys 123 shown in FIG. 11) arranged at a corner of the path T of the belt 81. Connected). Route T
Is almost coincident with the path P of the mold 53 (FIG. 3A).

Each pulley 123b is supported by a spindle 128 fixed to the frame 51 via a pair of bearings 129 using a known means. As will be described again, the connecting rod 88, the shaft 55 and the shaft 82 integral with the mold 53 are fixed to the belt 81.

The pulley 123b is connected to the first driving pulley 12
It has an outer diameter equal to the diameter of 3a.

As shown in FIG. 11 again, a recess 130 provided with the internal teeth 131 is formed on the surface of the first drive pulley 123a arranged facing the frame 51.

The first driving pulley 12 with respect to the frame 51
On the side opposite to 3a, a second toothed drive pulley 54a is arranged, and this drive pulley 54a is shaped similarly to the first drive pulley 123a.

The second driving pulley 54a is connected to the frame 5
1 spindle 1 fixed by known mechanical means
33 is supported by a pair of bearings 132 fitted thereon. Furthermore, for the second drive pulley 54a, which is externally toothed to pull the belt 52, the corresponding internal teeth 13
A recess 134 with 5 is provided.

A motion transmitting device 136 is provided across the frame 51 for transmitting motion between the first driving pulley 123a and the second driving pulley 54a. This device 136 comprises a pair of bearings 13 fixed to the frame 51 using known means and fitted on a spindle 139.
8 is provided with a bush 137 carrying the inside thereof. The spindle 139 is inserted into a hole 51d crossing the frame 51. Further, the spindle 139 is provided with pinion gears 140 and 141 at two ends thereof, each of which has an inner crown gear 131 of the pulley 123a and an inner crown gear 135 belonging to the pulley 54a, respectively. Engage with.

[0096] The toothed pulley 54a moves the toothed belt 52, and the belt 52 passes through a set of three snub pulleys 54b arranged at the corners of the path P.

As described above, the two driving pulleys 1 are driven by the device 136 to advance the shaft 82 along the path T in the same direction that the mold 53 moves clockwise in the path P.
23a and 54a are rotated in the same direction.

By means of a toothed belt (not shown), a further pulley 142 is fitted on the motion input drive shaft 122 in order to rotate the aforementioned toothed pulley 112 and therefore the distribution disc 102. It is clear that the rotation of the pulley 142 is simultaneous with the rotation of the drive pulleys 123a and 54a.

In summary, by moving the drive shaft 122, the pulleys 123a, 54a and 142 are simultaneously rotated in the same direction, moving the belt 81, the belt 52 and the distribution disk 102 at the same peripheral speed. Thus, the corresponding tubes 103, 104 for distributing vacuum and compressed air respectively on the surfaces 53a-53e of the mold 53.
At the same time, necessary operations after the mold 53 by the shaft 82 and necessary operations of the distribution disk 102 are performed.

The advantages of this machine are as follows. 1. Special devices are provided which are designed to hold the face of the mold at any point in the path always parallel to the face itself, and therefore different devices for manipulating different size molds and associated blanks. A device with a limited number of moving parts that can be adjusted appropriately. 2. Ease of synchronizing the advancement of the mold with the corresponding blank and the folding of a portion of the blank on the face of the mold. 3. The reliable use of a vacuum on the surface to ensure that a portion of the blank is cut off on the surface of the mold. 4. Conveniently utilizes the movement of the mold itself along a given path to selectively distribute vacuum and / or compressed air, depending on the various sections occupied by the mold or blank along the path, Selective distribution of vacuum and compressed air over the mold surface by means of a simple concept distributor with high certainty. 5. Quiet operation & substantial lack of mechanical part vibration. 6. In order to simultaneously occupy all mold departments with the molds with the corresponding blanks, multiple molds arranged in series can be moved simultaneously along the same path, in the embodiment shown, As a result, the transit time from the blank to the semi-package is reduced as a result, the possibility of processing nine blanks in the nine departments provided.

[Brief description of the drawings]

FIG. 1 shows a plan view of a blank which can be used in an apparatus for producing the subject of the invention for producing a corresponding semi-package.

FIG. 2 shows a three-dimensional view of a semi-package made by folding the blank shown in FIG.

FIG. 3 illustrates a circulation process that can be performed on the blank of FIG. 1 by various devices constituting the device according to the present invention.

FIG. 4 shows a schematic overview of the device according to the invention.

FIG. 5 shows a plan view of the mold incorporated in the corresponding vacuum and compressed air distributor illustrated in FIG. 3 (a).

[6] of the type incorporated in the corresponding vacuum and compressed air distributor illustrated in FIG. 5 shows a first front view one by V ₁ arrow.

[7] of the type incorporated in the corresponding vacuum and compressed air distributor illustrated in FIG. 5 shows a second front view according to V ₂ arrow.

FIG. 8 above taken along lines XX, FIGS.
FIG. 3 is a longitudinal sectional view of the device shown in FIG.

FIG. 9 is a cross-sectional view (of different scale) of the vacuum and compressed air distributor illustrated in FIG. 8, taken along line XI-XI.

FIG. 10 is a cross-sectional view (on a different scale) of the vacuum and compressed air distributor illustrated in FIG. 8, taken along line XII-XII.

FIG. 11 shows a movable member of the apparatus shown schematically in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 20 ... Blank 23 ... Front wall 26 ... Folded part of square end 27 ... Folded part of square end 29a ... Folded part of square end 40 ... Semi-packaged goods 50 ... Automatic device 51 ... Frame 52 ... Belt 53 ... Type 53a ... Top surface 57 ... Roller 58 ... Roller 59 ... Roller 64 ... Slope surface 66 ... Belt 80 ... Device

Claims (24)

[Claims] 1. A frame (51), at least one mold (53) formed to receive a blank (20), and said at least one mold (53) along a pre-formed path (P). Feeder (52) and each part (29a, 29a, 29a, 30b) of the blank (20) on the mold (53) so as to form a corresponding semi-package (40).
27, 23, 26), a plurality of devices (57, 58, 59, 64, 6) arranged along said path (P).
6) an automatic device (50) for preparing a semi-packaged product (40) from a blank (20), preferably made of cardboard, comprising: a plurality of the devices (57, 58, 59, 64, 66). Is fixed with respect to the frame (51) and the supply device (52), and the surface (53a-53f) of the mold (53) at any position of the path (P).
Automatic device (50) for preparing a semi-packaged product (40) from a blank (20), characterized in that it is provided with a device (80) which always keeps the surface parallel to said planes (53a-53f) itself. . 2. The device (80) has a belt (81) formed to follow a path (T), the path (T) being the path following the mold (53). (P)
An automatic device (50) according to claim 1, substantially parallel to. 3. In order to form a semi-packaged product (40), said at least one mold (53) includes a portion (24, 28, 28a, 23, 27) of said blank on a wall of said mold. Pneumatic means (56a, 56b,
The automatic device (50) according to claim 1 or 2, further comprising (65a, 65b, 65c). 4. The automatic device (50) according to claim 3, wherein the semi-packaged product (40) is discharged at the end of the path (P) by a jet of compressed air. 5. A plurality of devices (75, 102, 103, 1)
The automatic device (5) according to claim 4, wherein the vacuum and the compressed air are selectively distributed by an assembly comprising the first and second components (4, 113).
0). 6. The device (75, 102, 103, 10)
6. The automatic device (50) according to claim 5, wherein at least a part of 4) moves along the path (P) in synchronization with the movement of the mold (53). 7. The device (75) for distributing vacuum and compressed air is free running on a shaft (55) integral with the mold (53), the device (75) comprising: 5
The device according to claim 6, wherein the device (75) is capable of rotating the shaft (55) so as to provide the necessary selective distribution of vacuum and compressed air on the surfaces (53a-53e) of 3). Automatic device (50). 8. The device (75) comprises a semi-annular passage (91) for the distribution of vacuum and a surface (53) of the mold (53).
8. The automatic device (5) according to claim 7, wherein an annular passage (97) is provided on the inside for distributing the compressed air thereon.
0). 9. The semi-annular passage (91) is connected to the shaft (55) in order to generate a vacuum on the bottom (53b) and / or the top (53a) of the mold (53). 9. An automatic device (50) as claimed in claim 8, wherein an inlet (93, 94) is provided on the outer surface which can communicate with the device. 10. The automatic device (50) according to claim 9, wherein each of the suction cups (56a, 56b) is provided on the surface (53a, 53b) to hold a part of the blank (20). ). 11. The suction cup (56a, 56b).
However, the pipes (96, 95) allow the entrance (94,
The automatic device (50) according to claim 10, which is pneumatically connected to (93). 12. The suction cup (56a, 56b).
Are the surfaces (53a, 53b, 53) of the mold (53).
c) suction cups (65a,
65b, 65c) are pneumatically connected to
(50). 13. A disk (113) fixed with respect to said frame (51), and said frame (51).
The movable disk (102) belongs to the assembly, and one surface (102b) of the movable disk (102) rotates during rotation of the movable disk (102) with respect to the fixed disk (113). At
6. The automatic device (50) according to claim 5, wherein the fixed disk (113) is in contact with one surface (113a). 14. The movable disk (102)
14. The automatic device (50) according to claim 13, wherein the device is pneumatically connected to the means (75) via a pair of coiled elastic tubes (103, 104). 15. The automatic device according to claim 13, wherein the fixed disk (113) is pressed against the movable disk (102) by elastic means (118, 121). 16. The shaft (5) integral with the mold (53).
The automatic device (50) according to claim 7, wherein 5) is supported on the belt (52) by a plate (73) supported on two pairs of blocks (70) bonded to the belt (52). ). 17. The shaft (55) is connected to the belt (5).
17. The automatic device (50) according to claim 16, wherein the automatic device is free to rotate with respect to 2). 18. The shaft (55) and the belt (8).
18. The method according to claims 2 and 17, wherein 1) is connected together by a connecting rod (88) and a shaft (82) which is pulled by the belt (81) and is free to rotate with respect to the belt (81). Automatic device (50). 19. The automatic device (50) according to claim 18, wherein the mold (53), the shaft (55), the connecting rod (88) and the shaft (82) are integral with each other. 20. The belt (52) includes a pulley (54).
a, 54b) and the belt (8
1) is moved by pulleys (123a, 123b), and the movable disk (102) is connected to a pair of pulleys (112, 1) connected together by a belt.
20. Automatic device (50) according to claim 19, rotated by (42). 21. The pulley (54a, 54b, 123)
a, 123b, 112, 142) are one drive shaft (1
21. The automatic device (50) according to claim 20, rotated by (22). 22. A drive pulley (5) for the belt (52).
4a) and the drive pulley (123) of the belt (81).
22. The automatic device (50) according to claim 21, wherein a) has each internal tooth (135, 131) connected together by the device (136). 23. The device (136) comprises a spindle (139), the end of the spindle having a respective pinion gear (141, 140), each of said pinion gears having a respective one of said internal teeth (135). ) And the internal teeth (131) respectively.
0). 24. To make a semi-packaged product (40),
In an automatic device (50) formed for folding a blank (20) on a mold (53), said blank (20) comprises a front wall (23) and a rear wall (24), wherein said front wall (2) is provided.
3) and the rear wall (24) are connected together along one side by a front side surface (25) and have a fold (26, 27) at each pair of square ends, and And further comprising a pair of small insertion square end folds (29a) disposed between the end fold (26) and the square end fold (27), wherein the automatic device ( 50)
Means (57) for folding the folded portion (29a) at the small square end of the pair, and means (5) for folding the folded portion (27) at the square end of the pair.
8) and means (59) for folding the front side (25), first folding of the rear wall (23), first folding of the pair of square end folds (26). Means (62) for applying an adhesive substance on the inner surface of the pair of square end folds (26); and engraving means (60) for marking the square end folds (26). 61) means for second folding of said rear wall (23) and second folding of said pair of square end folds (26); and folding of each said square end. Folding the pair of square ends onto the pair of square end folds (27) such that a fold (26) is glued onto the respective square end fold (27). Means (66, 6) for the third folding of the tatami part (26)
The automatic device (50) according to claim 3, characterized in that: (7) is provided along the path (P).