JP6094734B2 - Carton molding equipment - Google Patents

Description

  The present invention relates to a carton molding apparatus, and more specifically, a carton before molding in which a front surface and a rear surface are inclined and a bottom surface and a top surface are close to each other is formed into a molded state in which the front surface and the rear surface are raised and the bottom surface and the top surface are separated from each other. And a carton molding apparatus for molding.

Conventionally, in a carton having a bottom surface facing downward, a top surface facing upward, a front surface facing front, and a rear surface facing rear, the front surface and the rear surface are inclined so that the bottom surface and the top surface are mutually 2. Description of the Related Art A carton molding apparatus is known that molds from a close state before molding to a molding state in which the front surface and the rear surface are raised and the bottom surface and the top surface are separated from each other.
As such a carton forming apparatus, the carton is formed by moving a front side holding member that contacts the front surface of the carton and a rear side holding member that contacts the rear surface (Patent Document 1).
Moreover, in this patent document 1, the carton of a magnitude | size different in size can be shape | molded, and the link mechanism for setting the space | interval of the said front side holding member and a rear side holding member according to the magnitude | size of a carton is provided. ing.

JP 2010-159063 A

However, the link mechanism in the carton molding apparatus of Patent Document 1 has a complicated configuration and has a problem that it is difficult to deal with various types.
In view of such a problem, the present invention provides a carton molding apparatus capable of molding a carton with a simpler configuration.

In other words, the carton molding device according to the invention of claim 1 includes a carton having a bottom surface facing downward, a top surface facing upward, a front surface facing front, and a rear surface facing rear. In the carton molding apparatus in which the rear surface is inclined and the bottom surface and the top surface are close to each other, and the front surface and the rear surface are erected and the bottom surface and the top surface are separated from each other,
A conveyance surface to which a carton before molding is supplied, a front-side holding member that contacts the front surface of the molded carton in a state of protruding above the conveyance surface, and a rear-side holding member that contacts the rear surface of the molded carton And driving means for moving the front side holding member and the rear side holding member,
The driving means is a permanent passage provided in at least one of a circulation path that circulates and guides the front-side holding member and the rear-side holding member along an endless movement locus, and the front-side holding member and the rear-side holding member. Either one of a magnet or an electromagnetic coil and the other of the permanent magnet or the electromagnetic coil arranged along the circulation path,
Further, a control means is provided for supplying an electric current to the electromagnetic coil of the driving means to individually move at least one of the front-side holding member and the rear-side holding member, and the front-side holding member and the rear-side holding member When the pre-molding carton is positioned between the front side holding member and the rear side holding member, the rear side holding member is moved relatively faster than the front side holding member so that the front side of the carton and It is characterized in that the rear surface is raised to be in a molded state.

According to the above invention, the front side holding member and the rear side holding member are individually moved by the driving means composed of a so-called linear motor, and the rear side holding member is moved relatively faster than the front side holding member. The carton before molding is pressed from the upstream side and the downstream side, whereby the front surface and the rear surface of the carton can be raised to be in a molded state.
At that time, since the distance between the front side holding member and the rear side holding member can be arbitrarily set by the control means, a complicated link mechanism as in Patent Document 1 is unnecessary, and in a variety of cartons. Even if there is, it is possible to cope.

The side view of the carton shaping | molding apparatus concerning a present Example is shown, (a)-(c) has each shown the operating state.

The illustrated embodiment will be described below. FIG. 1 shows a side view of a carton forming apparatus 1 for forming a carton C, and (a) to (c) are diagrams for explaining the operation of the carton forming apparatus 1.
The carton C is connected in an annular shape, and has a top surface C1 facing upward, a bottom surface C2 facing downward, a front surface C3 facing forward on the downstream side in the transport direction, and a rear surface C4 facing backward on the upstream side in the transport direction. Each of these surfaces is connected to a flap (not shown) for closing the side opening of the carton C.
In addition, the carton C is supplied in a state before molding in which the front surface C3 and the rear surface C4 are inclined and flattened, and the front surface C3 and the rear surface C4 are raised to separate the bottom surface C2 and the top surface C1 from each other. Thus, it can be in a molded state located in a substantially rectangular shape.
The carton molding apparatus 1 includes a carton magazine 2 containing the carton C before molding, a transport surface 3 on which the carton C is transported, and a carton C before molding from the carton magazine 2. Carton supply means 4 for supplying the surface to the conveying surface 3, lower suction means 5 provided below the conveying surface 3 for adsorbing and holding the bottom surface C2 of the carton C, and protruding above the conveying surface 3 In this state, the front-side holding member 6 that contacts the front surface C3 of the molded carton C, the rear-side holding member 7 that contacts the rear surface C4 of the molded carton C, the front-side holding member 6 and the rear-side holding member. Drive means 8 for moving 7, and these are controlled by control means (not shown).

The carton magazine 2 holds a plurality of pre-molded cartons C in a stacked state, and the carton supply means 4 sucks and holds them in order from the carton C located at the lower end thereof.
The transport surface 3 is formed to be smooth, and the carton C supplied by the carton supply means 4 is transported while being in sliding contact with the transport surface 3. Each work position such as a step of closing the flap and a step of storing the article in the carton C is set.
In the present embodiment, the flat carton C is supplied to the transport surface 3 with the top surface C1 and the rear surface C4 facing upward and the bottom surface C2 and the front surface C3 facing downward. It has become.

The carton supply means 4 includes an upper suction means 11 that sucks and holds the top surface C1 of the carton C, and moves the upper suction means 11 to move the carton C before molding from the carton magazine 2 to the transport surface 3. And a rotary table 12 as a moving means for moving.
The upper suction means 11 includes two suction heads 11 a at both ends, and the upper suction means 11 is provided on the outer peripheral portion of the rotary table 12 so as to be able to rotate, and revolves as the rotary table 12 rotates. It is like that.
Specifically, the suction head 11a moves along a movement locus indicated by a one-dot chain line in FIG. 1A, and one suction head 11a sucks the top surface C1 of the carton C located at the lower end of the carton magazine 2. When held, the upper suction means 11 revolves and rotates as the turntable 12 rotates, and is placed on the transport surface 3 so that the bottom surface C2 of the held carton C is downward.
Thereafter, the suction head 11a maintains the state in which the top surface C1 of the carton C is sucked and held for a predetermined time, as will be described later. As a result, the suction head 11a separates the top surface C1 from the transport surface 3 while moving upward. It is designed to be pulled up.

The lower suction means 5 is provided below the conveyance surface 3. The adsorption head 5 a provided on the upper surface of the lower suction means 5 adsorbs and holds the bottom surface C <b> 2 of the carton C, and the adsorption head 5 a on the upstream side of the conveyance surface 3. A moving means (not shown) is configured to reciprocate between a predetermined position and a predetermined position on the downstream side.
The moving means moves the suction head 5a in synchronization with the carton supply means 4, and when the carton C before molding is placed on the transport surface 3 by the upper suction means 11, the suction head 5a is moved before molding. The bottom surface C2 of the carton C is positioned at a position where it can be sucked and held.
Thereafter, since the carton C is molded while being transported on the transport surface 3, the moving means moves the suction head 5a to the downstream side in synchronization with the movement of the bottom surface C2,
When the carton C is in the molding state, the suction head 5a releases the bottom surface suction, and is moved to a position where the bottom surface C2 of the newly supplied carton C before molding can be sucked.

The front-side holding member 6 and the rear-side holding member 7 have substantially the same shape and are plate-like members provided perpendicular to the conveying surface 3, respectively, and the front surface of the carton C after molding. C3 and the rear surface C4 are in close contact with each other.
The driving means 8 is a so-called linear motor, and includes an oblong circulation passage 21 that constitutes an endless movement locus for moving the front-side holding member 6 and the rear-side holding member 7, and the front-side holding member 6 and the rear surface side holding member 7 are each provided with a permanent magnet (not shown), and the circulation passage 21 is provided with a plurality of electromagnetic coils (not shown).
The circulation passage 21 is provided adjacent to the side of the transport surface 3, and from the upstream in the transport direction at the portion where the front side holding member 6 and the rear side holding member 7 are exposed at the upper part of the transport surface 3. It is moved downstream and moved in the direction opposite to the conveying direction at the portion located below the conveying surface 3.

The control means controls the supply of current to each electromagnetic coil in the circulation passage 21 and can individually control the movement of the front side holding member 6 and the rear side holding member 7.
Further, a position sensor (not shown) for detecting the positions of the front-side holding member 6 and the rear-side holding member 7 is provided at a required position of the circulation passage 21, and the control means holds each front-side holding by a signal from the position sensor. The positions of the member 6 and the rear surface side holding member 7 are recognized.
With such a configuration, the control means can recognize the positions of all the front-side holding members 6 and the rear-side holding members 7 in the circulation passage 21 and can individually control these positions and speeds. It has become.
The rotary table 12 of the carton supply means 4 is provided with an encoder (not shown) for detecting the rotation angle, and the control means is a pre-molding carton held on the upper suction means 11 by the rotation angle of the rotary table 12. The position C is recognized, and the front side holding member 6 and the rear side holding member 7 are moved in synchronization.

Operation | movement of the carton shaping | molding apparatus 1 which has the said structure is demonstrated using Fig.1 (a)-(c).
First, when the carton supply means 4 operates and the upper suction means 11 sucks and holds the top surface C1 of the carton C before molding, which is located at the lower end of the carton magazine 2, the upper suction means 11 then rotates the turntable 12. The carton C before molding that has revolved and is sucked and held is placed on the transport surface 3 with the bottom surface C2 and the front surface C3 facing downward (state (a)).
At this time, the lower suction means 5 stands by at the position of the bottom surface C2 of the supplied carton C before molding. When the carton C before molding is placed on the transport surface 3, the bottom surface C2 is Hold by adsorption.

On the other hand, the control means recognizes the position of the carton C before molding from the rotation angle of the turntable 12, and the driving means 8 synchronizes with the position of the carton C before molding to hold the front side holding member. 6 and the rear surface side holding member 7 are moved.
Specifically, the front-side holding member 6 is located on the downstream side in the transport direction of the carton C before molding placed on the transport surface 3, and the carton C before molding is placed on the transport surface 3. Then, the boundary (front boundary) between the top surface C1 and the front surface C3 in the carton C before molding comes into contact with the rear side.
On the other hand, the rear surface side holding member 7 is located on the upstream side in the transport direction of the carton C before molding placed on the transport surface 3, and when the carton C before molding is placed on the transport surface 3, It moves in synchronization with this, and comes into contact with the boundary (rear boundary) between the rear surface C4 and the bottom surface C2 from the rear.
That is, when the carton supply means 4 supplies the pre-molding carton C to the conveying surface 3, the control means makes the front side holding member 6 and the rear side holding member 7 come into contact with the downstream side and the upstream side. Is to control.

FIG. 1B shows a state where the carton C is in the middle of molding, with the front C3 and the rear surface C4 slightly raised from the state before molding shown in FIG.
The upper suction means 11 and the lower suction means 5 are arranged so that the top surface C1 of the carton C and the carton C before the molding are placed on the transport surface 3 even in the state of FIG. The adsorption of the bottom surface C2 is maintained.
The upper suction means 11 continues to revolve and rotate along with the rotation of the rotary table 12. Therefore, the suction head 11a moves obliquely upward while moving downstream from the conveying surface 3, As a result, the top surface C1 of the carton C sucked by the suction head 11a is pulled upward.
On the other hand, since the lower adsorbing means 5 maintains the state in which the bottom surface C2 of the carton C is adsorbed and held, the upper adsorbing means 11 and the lower adsorbing means 5 are separated from each other in the vertical direction. The top surface C1 and the bottom surface C2 of C are separated vertically.
When the top surface C1 and the bottom surface C2 of the carton C are separated in this manner, the front surface C3 and the rear surface C4 that have been tilted up until then rise, so that the boundary (front boundary) between the top surface C1 and the front surface C3 and the rear surface C4 The boundary (backward boundary) with the bottom surface C2 approaches in the transport direction of the transport surface 3.
Therefore, the lower suction means 5 is moved by the moving means in synchronization with the position of the bottom surface C2.

On the other hand, positions of the front boundary and the rear boundary of the carton C during molding are set in advance in the control means, and the front side holding member 6 and the rear side holding member 7 are synchronized with the positions of these boundaries. It is designed to move.
That is, during the state shown in FIGS. 1 (a) to 1 (b), the carton C before molding is moved to the downstream side of the conveying surface 3 by the suction head 11a of the carton supply means 4, and accordingly the front side The boundary and the rear boundary also move.
Specifically, the top surface C1 of the carton C is separated from the bottom surface C2, and the front surface C3 and the rear surface C4 rise, so that the rear boundary moves to the downstream side faster than the front boundary.
Therefore, the control means moves the rear surface side holding member 7 relatively faster than the front surface side holding member 6 so as to move the front surface side holding member 6 and the rear surface side holding member 7 closer to each other. The carton C of the carton C is pressed from the upstream side and the downstream side, so that the front surface C3 and the rear surface C4 of the carton C stand up.

According to the state of FIG. 1B, the upper suction means 11 of the carton supply means 4 sucks and holds the top surface C1 of the carton C and moves it upward to form the carton C before molding. Therefore, since the lower suction means 5 holds the bottom surface C2 of the carton C by suction, the top surface C1 can be reliably detached from the bottom surface C2.
If the front side holding member 6 and the rear side holding member 7 are brought close to each other and the carton C before molding is pressed from the upstream side and the downstream side, the front surface C3 and the rear surface C4 of the carton C before molding do not stand up. There is a risk of buckling and deformation.

FIG. 1C shows a state in which the upper suction means 11 of the carton supply means 4 is detached from the top surface C1 of the carton C and the front surface C3 and the rear surface C4 of the carton C are further raised from the state of FIG. Is shown.
The control means moves the rear surface side holding member 7 relatively faster than the front surface side holding member 6 so that the front surface side holding member 6 and the rear surface side holding member 7 approach each other even after the upper suction means 11 is detached. As a result, the front and rear boundaries of the carton C before molding are held close to each other by the front-side holding member 6 and the rear-side holding member 7, respectively, so that the front surface C3 and the rear surface C4 further move. Standing up.
At that time, the lower adsorbing means 5 also moves downstream while the bottom surface C2 of the carton C is adsorbed and held in synchronization with the bottom surface C2 of the carton C moving downstream.

Thereafter, the control means further brings the front-side holding member 6 and the rear-side holding member 7 closer to each other so that the front surface C3 and the rear surface C4 of the carton C stand upright, and the front surface C3 of the carton C becomes the front-side holding member 6. The carton C is brought into contact with the rear surface holding member 7 in contact with the rear surface C4.
On the other hand, when the carton C is in a molding state, the lower suction means 5 is detached from the bottom surface C2, and then the transport means 3 is moved upstream by the moving means, so that the newly supplied carton C before molding is supplied. The bottom surface C2 is sucked and held.
The carton C in the molding state is conveyed while maintaining the molding state by the control means moving the front side holding member 6 and the rear side holding member 7 to the downstream side while maintaining the same interval at the same speed. The flap is set at a required position on the conveying surface 3 and is positioned at each work position such as a step of closing the flap and a step of storing articles in the carton C.
The lower suction means 5 may be detached from the bottom surface C2 before the carton C is in a molded state.
Then, the front-side holding member 6 and the rear-side holding member 7 that have reached the downstream end of the conveying surface 3 move below the conveying surface along the circulation path 21 and further move to the upstream side before new molding. Wait to mold carton C.

Next, the case where the carton C of a different size is formed in the carton forming apparatus 1 of the present embodiment will be described.
As the carton C having different sizes, the top surface C1 and the bottom surface C2 are longer or shorter than the carton C of the above embodiment, and similarly, the front surface C3 and the rear surface C4 have the lengths of the above embodiment. There is something different from the carton C.
When these cartons C are placed on the conveyance surface 3, the total length of the top surface C1 and the rear surface C4 is different in the carton C before molding, for example, so the distance between the front boundary and the rear boundary is the above-described distance. It will be different from the example.
However, in the present embodiment, the front side holding member 6 and the rear side holding member 7 can be individually controlled by the control means. For example, the total length of the top surface C1 and the rear surface C4 or the carton C after molding If the length of the top surface C1 is set, the carton C can be formed by the front side holding member 6 and the rear side holding member 7.
That is, it is possible to form cartons C having various sizes without using the link mechanism as in Patent Document 1, and the setting at that time can be easily performed.

Moreover, according to the carton molding apparatus 1 of the present embodiment, the front-side holding member 6 and the rear-side holding member 7 can be moved to arbitrary positions on the transport surface 3 by the control means. Thus, there is no need to set work positions for performing the required work at predetermined intervals as in Patent Document 1, and a free layout can be adopted according to the size of the processing means at each work position.
Further, if the speed is changed while maintaining the distance between the front-side holding member 6 and the rear-side holding member 7 at each work position, the work time at each work position can be changed. It is also possible to change the speed between the work positions.

In addition, in the said Example, although the front side holding member 6 and the rear side holding member 7 are made to approach in FIG.1 (b) and the carton C before shaping | molding is pressed from the front and back, about this press, It may be performed after FIG. 1C, and until then, the front side holding member 6 and the rear side holding member 7 may be kept in contact with or in the vicinity of the carton C.
Further, when the flat carton C before molding is supplied to the conveying surface 3, it is also possible to supply the flat carton C with the top surface C1 and the front surface C3 facing upward and the bottom surface C2 and the rear surface C4 facing downward. It is.
Further, in the above embodiment, as the driving means 8 for driving the front side holding member 6 and the rear side holding member 7, permanent magnets are provided to the front side holding member 6 and the rear side holding member 7 in the circulation passage 21. Although an electromagnetic coil is provided, a configuration opposite to this may be employed.
And in the said Example, although the permanent magnet was provided in the front side holding member 6 and the rear side holding member 7, and these were controlled separately by the said control means, only one of these holding members is carried out. A permanent magnet may be provided, and the control unit may control the position and speed of the one holding member.
For example, a permanent magnet is provided on the rear side holding member 7 and is individually controlled by the control means, and the other front side holding member 6 is moved in the circulation path at a constant speed by a driving means such as a motor. It can be configured.
In that case, the control means makes the speed of the rear surface side holding member 7 faster than the speed of the front surface side holding member 6, thereby bringing the front surface side holding member 6 and the rear surface side holding member 7 closer to each other and making the carton C Can be formed.

DESCRIPTION OF SYMBOLS 1 Carton forming apparatus 2 Carton magazine 3 Conveying surface 4 Carton supply means 5 Lower side adsorption means 6 Front side holding member 7 Rear side side holding member 8 Drive means 11 Upper side adsorption means 12 Rotary table (moving means)
21 Circulation path C Carton C1 Top surface C2 Bottom surface C3 Front surface C4 Rear surface

Claims (3)

A carton having a bottom facing downward, a top facing upward, a front facing forward, and a rear facing backward, the front and rear surfaces are tilted so that the bottom and top surfaces approach each other. In the carton molding device in which the front surface and the rear surface are erected from the state before molding and the bottom surface and the top surface are separated from each other,
A conveyance surface to which a carton before molding is supplied, a front-side holding member that contacts the front surface of the molded carton in a state of protruding above the conveyance surface, and a rear-side holding member that contacts the rear surface of the molded carton And driving means for moving the front side holding member and the rear side holding member,
The driving means is a permanent passage provided in at least one of a circulation path that circulates and guides the front-side holding member and the rear-side holding member along an endless movement locus, and the front-side holding member and the rear-side holding member. Either one of a magnet or an electromagnetic coil and the other of the permanent magnet or the electromagnetic coil arranged along the circulation path,
Further, a control means is provided for supplying an electric current to the electromagnetic coil of the driving means to individually move at least one of the front-side holding member and the rear-side holding member, and the front-side holding member and the rear-side holding member When the pre-molding carton is positioned between the front side holding member and the rear side holding member, the rear side holding member is moved relatively faster than the front side holding member so that the front side of the carton and A carton molding device characterized in that a rear surface is raised to be in a molded state. A carton magazine for holding the carton before molding, an upper suction means for sucking and holding the top surface of the carton, and a moving means for moving the upper suction means,
When the upper suction means sucks and holds the top surface of the carton in a state before molding held by the carton magazine, the moving means moves the upper suction means to supply the carton before molding to the transport surface. 2. The carton molding apparatus according to claim 1, wherein the moving means raises the upper suction means so that the top surface of the carton is separated from the bottom surface and the front surface and the rear surface of the carton are erected.   3. A carton molding apparatus according to claim 1, further comprising lower suction means for sucking and holding the bottom surface of the carton.

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