JP5434080B2 - 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 There is known a carton molding apparatus in which a front surface and a rear surface are raised from a close pre-molding state to a molding state in which a bottom surface and a top surface are separated from each other, and the carton is delivered to a conveying device.
As such a carton molding apparatus, an upper suction member for sucking and holding the top surface of the carton, an upper suction member moving means for moving the upper suction member, a lower suction member for sucking and holding the bottom surface of the carton, and the lower A carton molding device is known that includes a lower suction member moving unit that moves a side suction member to move the carton to a delivery position to a transfer device (Patent Document 1).

JP 2000-255513 A

However, in the carton molding apparatus of Patent Document 1, the upper suction member moving means moves the upper suction member to bring the carton into a molded state, and then the lower suction member moving means moves the lower suction member. It is moved to the delivery position to the transfer device.
For this reason, a step of moving the carton formed by the lower adsorption member moving means from the carton forming device to the delivery position to the transfer device is required between the carton forming step and the carton transfer step by the transfer device. In the meantime, since a new carton cannot be supplied and the new carton cannot be molded, there is a problem that the carton cannot be continuously processed.
In view of such problems, the present invention provides a carton molding apparatus capable of continuously processing cartons.

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. Then, from the state before molding where the bottom surface and the top surface are close to each other with the rear surface inclined, the front surface and the rear surface are raised to form a molding state in which the bottom surface and the top surface are separated from each other, and the carton is transferred to the conveying device. A delivery carton forming device,
An upper adsorbing member for adsorbing and holding the top surface of the carton, an upper adsorbing member moving means for moving the upper adsorbing member, a lower adsorbing member for adsorbing and holding the bottom surface of the carton, and moving the lower adsorbing member to In the carton molding device provided with the lower suction member moving means for moving the carton to the delivery position to the conveying device,
The carton before molding is supplied with the rear and top surfaces facing upward, and the front and bottom surfaces facing downward,
The lower adsorbing member moving means is configured to move the lower adsorbing member that adsorbs and holds the bottom surface of the carton at the molding start position to the downstream side in the conveying direction to move to the delivery position,
Further, the upper suction member moving means synchronizes the upper suction member that sucks and holds the top surface of the carton at the molding start position in synchronization with the movement of the lower suction member from the molding start position to the delivery position. It is characterized in that it is moved to the delivery position by being raised while being moved to the side, and the carton is brought into a molded state.

  A carton molding device according to the invention of claim 5 is a carton comprising a bottom surface facing downward, a top surface facing upward, a front surface facing front, and a rear surface facing rear. Carton molding 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 so that the bottom surface and the top surface are separated from each other, and the carton is delivered to the conveying device. A device,
  An upper adsorbing member for adsorbing and holding the top surface of the carton, an upper adsorbing member moving means for moving the upper adsorbing member, a lower adsorbing member for adsorbing and holding the bottom surface of the carton, and moving the lower adsorbing member to In the carton molding device provided with the lower suction member moving means for moving the carton to the delivery position to the conveying device,
  The carton before molding is supplied with the front and top surfaces facing upward, and the rear and bottom surfaces facing downward,
  The upper adsorbing member moving means moves the upper adsorbing member, which adsorbs and holds the top surface of the carton at the molding start position, upward and forward by a predetermined amount toward the delivery position, and at the same time, the lower adsorbing member moving means The lower adsorbing member that adsorbs and holds the bottom surface of the carton at the molding start position is moved by the same amount as the upward amount and the forward movement amount of the upper adsorbing member,
  From this state, the upper adsorbing member moving means continues to move the upper adsorbing member from the rear to the front to move to the delivery position, and the lower adsorbing member moving means is the lower adsorbing member with the bottom surface adsorbed and held. Is lowered and moved to the delivery position, so that the carton is formed.

According to the first aspect of the present invention, the lower suction member moving means moves the lower suction member that sucks and holds the bottom surface of the carton from the molding start position to the delivery position to the transfer device, and The upper suction member moving means moves the upper suction member that sucks and holds the top surface of the carton from the molding start position to the delivery position.
This eliminates the need to move the molded carton from the carton molding device to the delivery position to the transfer device. After the carton is molded, the lower suction member is moved to the molding start position, so that a new The carton can be processed and the carton can be processed continuously.

  According to the invention of claim 2, it is possible to process even a small carton and a large carton having different sizes, and the delivery position of the small carton and the delivery position of the large carton are determined in the transport direction on the rear surface of each carton. By making it the same as the position, it becomes possible to easily perform operation settings such as a transport device.

  According to the lower suction member moving means according to the third aspect of the invention, it is possible to easily set the lower suction member to move up and down and to advance and retreat only by controlling the movement of the first lower base and the second lower base. And can easily accommodate various sized cartons.

  According to the inclination correction member of the invention of claim 4, even if the carton before molding is supplied in a state inclined with respect to the conveying direction by pressing the rear end portion of the carton forward, this is corrected. And the distortion of the carton during the carton molding can be prevented.

  According to the invention of claim 5, the lower suction member moving means moves the lower suction member holding the bottom surface of the carton by suction from the molding start position to the delivery position to the transfer device, and The suction member moving means moves the upper suction member that sucks and holds the top surface of the carton from the molding start position to the delivery position.
  This eliminates the need to move the molded carton from the carton molding device to the delivery position to the transfer device. After the carton is molded, the lower suction member is moved to the molding start position, so that a new The carton can be processed and the carton can be processed continuously.

Configuration diagram of boxing line according to the present embodiment Side view of carton molding equipment The figure which showed the formation process of the carton. The figure which showed the difference in the shaping | molding start position at the time of shape | molding a large carton and a small carton. The figure which showed the shaping | molding process about the pallet before shaping | molding supplied in the reverse selfishness state.

The illustrated embodiment will be described below. FIG. 1 shows a cartoning line 1 for molding a carton C supplied in a state before molding and packing the contents into the carton C.
The boxing line 1 is capable of boxing the contents by using both the large carton Cb and the small carton Cs, and FIG. 1 shows a state in which the large carton Cb is being processed.
The boxing line 1 includes a large carton supply means (not shown) for supplying the large carton Cb before molding, a small carton supply means 2 for supplying the small carton Cs before molding, and a carton molding device 3 for molding the carton C. The apparatus includes a conveying device 4 that intermittently conveys the molded carton C and a boxing device (not shown) that houses and seals the contents, and these are controlled by a control device (not shown).
Further, two rail-like mounting members 5 for mounting the carton C on the upper surface are provided from the carton forming device 3 to the conveying device 4, and the carton C is placed on the mounting member 5 on the left side in the figure. Is conveyed from the upstream side toward the downstream side on the right side of the figure.
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. And a flap (not shown) connected to the front surface C3 and the rear surface C4.
In the present embodiment, the carton C before being formed is supplied with the top surface C1 and the rear surface C4 facing upward, and the bottom surface C2 and the front surface C3 facing downward, and the front surface C3 and the rear surface C4 are inclined and the bottom surface C2. And the top surface C1 is supplied in a flat state close to each other.

The large carton supply means is located on the upstream side of the carton molding device 3 and includes a suction head that sucks and holds the large carton Cb before molding one by one, an arm that moves the suction head, and the like.
The small carton supply means 2 includes a stocker 2a for holding a plurality of pre-molded cartons C in a stacked state, a holding means 2b for holding small cartons Cs one by one from the stocker 2a, and a small carton held by the holding means 2b. And a rotary table 2c for moving Cs to the carton molding device 3.
At both ends of the holding means 2b, suction heads for sucking and holding the small cartons Cs by suction are provided. The holding means 2b is revolved by the rotary table 2c, and the small cartons Cs are alternately stocked by the two suction heads. 2a is taken out and moved to the carton molding device 3.

As shown in FIG. 2, the carton molding apparatus 3 includes a feed conveyor 11 that transports the carton C before molding, and a lower suction member that is provided below the feed conveyor 11 and holds the bottom surface C2 of the carton C by suction. 12, a lower suction member moving means 13 for moving the lower suction member 12, an upper suction member 14 for sucking and holding the top surface C1 of the carton C, and an upper suction member moving means for moving the upper suction member 14 15.
The feed conveyor 11 is composed of two conveyor belts arranged in parallel, and protrusions 11a are provided at equal intervals on the outer peripheral surface thereof. The placement member 5 is provided inside or outside the conveyor belt, and the height of the top surface of the placement member 5 and the top surface of the feed conveyor 11 are matched.
The large carton supply means places the large carton Cb before molding on the upstream side of the feed conveyor 11, and the small carton supply means 2 places the small carton Cs before molding downstream from the supply position of the large carton Cb. It is supposed to be placed.
When the carton C is placed on the feed conveyor 11, the protrusion 11 a comes into contact with the rear end of the carton C, and the carton C is conveyed to the vicinity of the molding start position described later.

The lower suction member 12 is fixed to the upper base 21 constituting the lower suction member moving means 13 so as to face upward, and is provided at two locations along the transport direction. Note that when the small carton Cs is formed, the downstream lower suction member 12 is removed.
The lower suction member 12 is connected to a negative pressure generating means (not shown) controlled by the control means, and sucks and holds the bottom surface C2 of the carton C by the negative pressure.
Further, an inclination correction member 22 having a plate shape having a substantially L-shaped cross section is fixed to the upper base 21 at a position adjacent to the upstream side of the lower adsorption member 12, and the inclination correction member 22 is When raised by the lower adsorbing member moving means 13, it protrudes above the mounting member 5 and comes into contact with the rear end of the carton C before molding.
Although the inclination correction member 22 of this embodiment has a substantially L-shaped cross section, it may have a simple plate shape or a configuration in which a plurality of rod-like members are aligned in a direction perpendicular to the transport direction. May be.

The lower suction member moving means 13 includes first and second rail guides 23 and 24 provided in parallel along the transport direction, a first lower base 25 that moves forward and backward along the first rail guide 23, A second lower base 26 that moves forward and backward along the two-rail guide 24, an upper base 21 having the lower adsorption member 12 on the upper surface, and a swingable movement between the first lower base 25 and the upper base 21. Two first link members 27, 27, and a second link member 28 swingably provided between the front first link member 27 and the second lower base 26. .
The first and second rail guides 23 and 24 are provided with ball screws (not shown) that are rotated by servomotors 23a and 24a, respectively. The first lower base 25 and the second lower base 26 are rotated by the ball screws. It is designed to move back and forth in the front-rear direction.
The two first link members 27, 27 have the same length, and the first link members 27, 27, the upper base 21, and the first lower base 25 form a parallelogram link. It has become.
One end of the second link member 28 is swingably connected to the center of the first link member 27 positioned forward, and the other end is swingably connected to the second lower base 26.

With such a configuration, when the first and second lower bases 25 and 26 are relatively approached, the end of the second link member 28 on the first link member 27 side swings upward, The end portions of the first link members 27, 27 on the upper base 21 side swing in conjunction with each other, so that the lower suction member 12 rises.
On the other hand, when the first and second lower bases 25 and 26 are relatively separated from each other, the end of the second link member 28 on the first link member 27 side swings downward, and in conjunction with this, Since the end of the one link member 27, 27 on the upper base 21 side swings downward, the lower suction member 12 is lowered.
For this reason, when the first and second lower bases 25 and 26 are moved to either the upstream side or the downstream side at the same speed, the first and second lower bases 25 and 26 have a certain distance from each other. In order to maintain, the first and second link members 27 and 28 do not swing, and the lower suction member 12 moves horizontally without moving up and down.
On the other hand, by moving the first and second lower bases 25 and 26 in the same direction and changing their moving speeds, the first and second lower bases 25 and 26 are relatively contacted and separated from each other. The adsorbing member 12 moves up and down while moving.

The upper suction member 14 is fixed to a stay 31 constituting the upper suction member moving means 15 so as to face downward, and negative pressure is generated by a negative pressure generation means (not shown) to hold the top surface C1 of the carton C by suction. It is supposed to be.
The upper suction member moving means 15 includes a swing arm 33 that is rotated by a servo motor 32, a fixed arm 34 that is provided toward the lower left of the rotation axis of the servo motor 32, and the swing arm 33. The holding arm 35 is provided so as to be able to swing and has the stay 31 fixed to the tip thereof, and a link member 36 that connects the fixing arm 34 and the holding arm 35 so as to be swingable.
The fixed arm 34 is fixed so as not to rotate, and the connecting portion with the link member 36 is positioned rearward and downward with respect to the rotation shaft of the servo motor 32.
Since the swing arm 33 and the link member 36 have the same length, and the fixed arm 34 and the holding arm 35 have the same length, a substantially parallelogram link is formed by these arms. Has been.
With such a configuration, when the swing arm 33 rotates, the upper suction member 14 moves up and down while drawing an arc facing forward while maintaining a state of facing downward.

The conveying device 4 includes a first flange member 42 provided with a plurality of rear engagement members 41 at equal intervals in the conveyance direction, a second flange member 44 provided with a plurality of front engagement members 43 at equal intervals in the conveyance direction, The first moving means 45 for moving the first hook member 42, the second moving means 46 for moving the second hook member 44, and the carton holding means 47 provided above the mounting member 5. ing.
The first flange member 42 and the second flange member 44 are long in the transport direction, and the first flange member 42 and the second flange member 44 are relatively moved in the transport direction by a slide rail (not shown). So that they are connected.
The rear engagement member 41 is in contact with the rear surface C4 of the molded carton C, and long rear engagement members 41L and short rear engagement members 41S are alternately provided.
The front engagement member 43 is in contact with the front surface C3 of the molded carton C, and short front engagement members 43S and long front engagement members 43L are alternately provided.
Here, the upper end position of the long rear engagement member 41L and the upper end position of the long front engagement member 43L are aligned at the same height, and the upper end position of the short rear engagement member 41S and the short front engagement member The upper end position of 43S is also arranged at the same height.

Then, the distance between the rear engagement member 41 and the front engagement member 43 matches the width of the carton C by relatively moving the first and second flange members 42 and 44 back and forth.
For example, when transporting the large carton Cb, the short front engaging member 43S and the short rear engaging member 41S are retracted below the mounting member 5, and the large carton is formed by the long front engaging member 43L and the long rear engaging member 41L. Cb is clamped.
On the other hand, when the small carton Cs is transported, the short front engaging member 43S and the short rear engaging member 41S are also projected above the mounting member 5, and the long front engaging member 43L and the short rear engaging member 41S. The small carton Cs is sandwiched between the short front engagement member 43S and the long rear engagement member 41L.

The first moving means 45 includes two sets of link mechanisms 45a and 45a provided at the front and rear, two servo motors 45b and 45b for driving the link mechanism 45a on the downstream side, and link mechanisms 45a on the upstream side and the downstream side. , 45a are connected to each other so as to be synchronized with each other.
Then, by operating the link mechanisms 45a, 45a by the servo motors 45b, 45b, the first saddle member 42 is moved up and down between the lowered position and the raised position while maintaining the horizontal state, and is further moved to the left in the figure. The reciprocation is made between a retreat position and a right advance position in the figure.
The second moving means 46 includes a link mechanism 46b driven by a servo motor 46a.
When the first moving means 45 moves the first hook member 42, the second hook member 44 moves along with the first hook member 42. At this time, the second moving member 46 moves the second hook member 44 to the first position. The distance between the rear engagement member 41 and the front engagement member 43 is changed by moving the first hook member 42 relative to the front and rear.

The carton holding means 47 includes a first upper flange member 52 provided with a plurality of upper rear engaging members 51 at equal intervals in the conveying direction and a second upper portion provided with a plurality of upper front engaging members 53 at equal intervals in the conveying direction. It is comprised from the eaves member 54 and the raising / lowering means 55 which raises / lowers the said 1st upper eaves member 52 and the 2nd upper eaves member 54 integrally.
The first upper hook member 52 and the second upper hook member 54 are long along the transport direction, and are connected to each other so as to be relatively movable in the transport direction by a slide rail (not shown). It is possible to move relative to the direction.
The upper rear engagement member 51 comes into contact with the rear surface C4 of the carton C, and a long upper rear engagement member 51L and a short upper rear engagement member 51S are long rear engagements of the first flange member 42. The joint member 41L and the short rear engagement member 41S are provided at the same interval.
The upper front engagement member 53 is in contact with the front surface C3 of the carton C, and a short upper front engagement member 53S and a long upper front engagement member 53L are short of the second flange member 44. The front engaging member 43S and the long front engaging member 43L are provided at the same interval.
The lifting means 55 includes a cam 55a that is eccentrically rotated by a motor (not shown), a cam follower 55c provided on a frame 55b that holds the first upper flange member 52 and the second upper flange member 54, and first and second upper portions. The screw shaft 57 is configured to adjust the descending amount of the flange members 52 and 54.
According to the elevating means 55, the cam follower 55c moves up and down with the rotation of the cam 55a, and the first and second upper eaves members 52 and 54 are integrally raised and lowered.
Then, the first and second upper flange members 52 and 54 are relatively moved by the screw shaft 56, and the interval between the upper rear engagement member 51 and the upper front engagement member 53 is made to coincide with the interval of the carton C. While the carton C intermittently conveyed by the first and second flange members 42 and 44 is stopped, the carton C is held from above and the unsealed carton C is maintained in the molded state. .
When transporting the large carton Cb, the screw shaft 57 reduces the lowering amount of the first and second upper flange members 52, 54 so that the short upper rear engagement member 51S and the short upper front engagement member 53S are provided. Avoid interference with the large carton Cb.

Hereinafter, the molding operation of the large carton Cb by the boxing line 1 will be described with reference to FIG. In this figure, for the sake of explanation, the display of the feed conveyor 11 and the placement member 5 is omitted, and the placement surface of the carton C is indicated by a two-dot chain line.
FIG. 3A shows a state in which the lower suction member 12 and the upper suction member 14 are retracted to the standby positions by the lower suction member moving means 13 and the upper suction member moving means 15, respectively.
At this time, the lower adsorbing member moving means 13 retracts the first and second lower bases 25 and 26 to the upstream side, and separates the first and second lower bases 25 and 26 from each other. For this reason, the lower adsorption member 12 and the inclination correction member 22 are retracted downward from the placement surface.
On the other hand, the upper suction member moving means 15 swings the swing arm 33 upward, so that the upper suction member 14 is positioned forward and retracted upward.
Further, the transport device 4 positions the first and second flange members 42 and 44 in the lowered position and the retracted position, and the distance between the long rear engagement member 41L and the long front engagement member 43L is set. It is slightly wider than the length of the large carton Cb when molded.
In this state, when the large carton Cb is supplied from the large carton supply means to the feed conveyor 11, the feed conveyor 11 supplies the large carton Cb to the vicinity of the required molding start position.
Specifically, the rear end portion of the large carton Cb before molding slightly upstream from the position where the lower suction member 12 sucks and holds the bottom surface C2 and the upper suction member 14 sucks and holds the top surface C1. The carton C is stopped at a position downstream of the inclination correction member 22.

Next, FIG. 3B shows a state in which the lower suction member 12 and the upper suction member 14 are located at the molding start position holding the bottom surface C2 and the top surface C1 of the large carton Cb.
From the state of FIG. 3A, the lower suction member moving means 13 moves the first and second lower bases 25 and 26 to the downstream side, and at this time, the first lower base 25 is moved to the second lower base 26. Move faster.
As a result, the first and second lower bases 25 and 26 come close to each other, so that the first and second link members 27 and 28 swing, and the upper base 21 moves upward while moving forward.
Then, the inclination correction member 22 protrudes above the placement surface and comes into contact with the rear end portion of the large carton Cb, and further presses the large carton Cb forward, whereby the direction of the rear end portion of the large carton Cb is determined. Is corrected so as to be orthogonal to the transport direction.
Here, while the direction of the rear end portion of the large carton Cb is corrected by the inclination correction member 22, the lower suction member 12 is maintained in a state of being retracted below the placement surface.
When the orientation of the large carton Cb is corrected by the inclination correction member 22, the first lower base 25 stops and the second lower base 26 approaches the first lower base 25.
Then, the lower suction member 12 rises substantially vertically, and the lower suction member 12 sucks and holds the bottom surface C2 of the large carton Cb, so that the lower suction member 12 is positioned at the molding start position.
By operating the lower adsorbing member moving means 13 in this way, the bottom surface C2 of the large carton Cb and the lower adsorbing member 12 are prevented from rubbing against each other. Damage to the resin portion of the side adsorption member 12 can be prevented.
Subsequently, the upper suction member moving means 15 rotates the tip of the swing arm 33 downward, so that the upper suction member 14 moves downward while moving from the front to the rear, and moves the top surface C1 of the large carton Cb. By holding by suction, the upper suction member 14 is positioned at the molding start position.

Next, FIG. 3C shows a state in which the upper suction member 14 and the lower suction member 12 are molded while moving the large carton Cb to the delivery position.
The lower suction member moving means 13 moves the first and second lower bases 25 and 26 forward at the same speed, and the two lower suction members 12 holding and holding the bottom surface C2 of the large carton Cb are in a horizontal state. Move to the front delivery position while maintaining.
On the other hand, the upper suction member moving means 15 rotates the tip of the swing arm 33 upward in synchronization with the movement of the lower suction member 12 by the lower suction member moving means 13. It moves up from the rear to the front and moves to the delivery position.
As a result, the top surface C1 of the large carton Cb rises while moving relative to the bottom surface C2 from the front to the rear, and the front surface C3 and the rear surface C4 stand up to form the large carton Cb.
In this delivery position, the first and second flange members 42 and 44 of the transport device 4 are waiting below the molded large carton Cb, and the long rear engagement member 41L and the long front engagement member 43L are substantially omitted. A large carton Cb is located in the middle.

Next, FIG. 3D shows a state in which the large carton Cb is delivered to the transfer device 4 and the upper suction member 14 and the lower suction member 12 are again retracted to the standby position of FIG.
When the large carton Cb is formed in FIG. 3 (c), the first and second moving means 45 and 46 of the transfer device 4 raise the first and second flange members 42 and 44, and a long front engaging member. Only 43L and the long rear engagement member 41L protrude above the mounting surface.
At this time, the distance between the long front engagement member 43L and the long rear engagement member 41L is set wider than the width of the large carton Cb, so that the front surface C3 and the rear surface C4 of the large carton Cb are not scratched. It has become.
From this state, the first and second moving means 45 and 46 move the first and second flange members 42 and 44 relative to each other to bring the long front engaging member 43L and the long rear engaging member 41L closer to each other. Thus, the large carton Cb is sandwiched.

On the other hand, when the lower suction member 12 releases the suction holding of the bottom surface C2, the lower suction member moving means 13 separates the second lower base 26 from the first lower base 25 while the first lower base 25 is stopped, The lower adsorption member 12 is lowered substantially vertically and is detached from the bottom surface C2 of the large carton Cb.
Subsequently, the first and second lower bases 25 and 26 are moved rearward, and at this time, the first lower base 25 is moved faster than the second lower base 26.
Then, the first and second lower bases 25 and 26 are separated from each other, the upper base 21 is lowered while moving backward, the lower suction member 12 is detached from the bottom surface C2, and the inclination correction member 22 is Retreats below the placement surface and moves to the retreat position shown in FIG.
By operating the lower adsorbing member moving means 13 in this way, the bottom surface C2 of the large carton Cb and the lower adsorbing member 12 are prevented from rubbing against each other. Damage to the resin portion of the side adsorption member 12 can be prevented.
Further, the upper suction member moving means 15 rotates the tip of the swing arm 33 upward, whereby the upper suction member 14 is further raised and detached upward from the top surface C1 of the formed large carton Cb. Then, it moves to the retracted position shown in FIG.

In such a state, the conveying device 4 moves the first and second moving members 45 and 46 to the forward position, and the first and second moving means 45 and 46 move the formed large carton Cb. It is conveyed forward by one pitch toward the next station in the boxing device.
Subsequently, the first and second moving means 45 and 46 move the first and second flange members 42 and 44 relative to each other to separate the long front engagement member 43L and the long rear engagement member 41L from each other, thereby causing a large carton. Cb is released.
After that, the first and second moving means 45, 46 lower the first and second flange members 42, 44 to the lowered position again, so that the long front engaging member 43L and the long rear engaging member 41L are below the conveying surface. By retracting and further moving the first and second flange members 42 and 44 to the retracted position, a long front engaging member 43L and a long rear engaging member 41L shown below the delivery position shown in FIG. Position.

  According to the carton forming apparatus 3 of the present embodiment, as shown in FIG. 3C, the lower adsorbing member 12 that adsorbs and holds the bottom surface C2 of the carton C at the forming start position is used as the lower adsorbing member moving means 13. Since the upper suction member 14 that sucks and holds the top surface C1 is moved from the molding start position to the delivery position in synchronization with the movement to the delivery position downstream in the transport direction, the carton C is molded and the carton C Delivery to the transport device 4 can be performed simultaneously.

Next, the difference when the large carton Cb and the small carton Cs are handled by the boxing line 1 will be described.
First, the conveyance reference of the conveyance device 4 of this embodiment is the rear surface C4 of the carton C, and the rear engagement member 41 provided on the first brim member 42 is always shown in FIG. ) To (c). And the said 2nd collar member 44 is moved according to the size of the carton C, and the space | interval of the rear engagement member 41 and the front engagement member 43 is adjusted.
For this reason, the carton molding apparatus 3 of the present embodiment determines the delivery position when molding the small carton Cs and the delivery position when molding the large carton Cb from the rear surface of the molded small carton Cs and large carton Cb. The molding start position is varied forward and backward so that C4 matches in the transport direction.
The molding start position is set based on the height of the rear surface C4 and the front surface C3 of the carton C to be molded. The upper part of FIG. FIGS. 4A and 4B show diagrams when molding a large carton Cb having a large height, and the left side of FIG. 4 is a diagram in which the lower suction member 12 and the upper suction member 14 are positioned at the molding start position (the same state as FIG. 3B). The right side shows a diagram (the same state as FIG. 3C) located at the delivery position.
As shown in these drawings, the molded large carton Cb and the small carton Cs are formed by positioning the molding start position when molding the small carton Cs ahead of the molding start position when molding the large carton Cb. The rear surface C4 can be at the same position.
More specifically, when the large carton Cb is molded, it is necessary to set the swing amount of the upper suction member 14 by the upper suction member moving means 15 larger than when the small carton Cs is molded.
At the same time, it is necessary to increase the amount of movement of the lower adsorbing member 12 by the lower adsorbing member moving means 13 as compared with the case of forming the small carton Cs. The moving speed of the lower suction member 12 is appropriately reduced in accordance with the movement of the upper suction member 14 so that the above load does not act.

As described above, the molding start position and the delivery position when molding the large carton Cb and the small carton Cs are obtained only by changing the movement amount and swing amount of the lower suction member moving means 13 and the upper suction member moving means 15, respectively. Well, since it is not necessary to modify the equipment at all, it is possible to easily cope with various varieties.
Further, when the transport device 4 of the present embodiment transports the small carton Cs, the short rear engagement member 41S and the short front engagement member 43S are also located above the placement member 5 by the first and second moving means 45 and 46. The small carton Cs may be sandwiched between the long rear engagement member 41L and the short front engagement member 43S, and the short rear engagement member 41S and the long front engagement member 43L.
That is, it is possible to easily cope with various kinds of products because only the setting of the first and second moving means 45 and 46 is changed and no modification is required to the equipment.
When forming the large carton Cb and the small carton Cs having the same height of the rear surface C4 and the front surface C3 and different lengths of the bottom surface C2 and the top surface C1, the lower suction member moving means 13 and the upper suction member are formed. Since the moving amount and the swinging amount of the moving means 15 are the same, the position of the rear surface C4 is the same although the position of the front surface C3 at the delivery position is different.
For this reason, there is no need to change the amount of movement or swing of the lower suction member moving means 13 and the upper suction member moving means 15, only the setting of the first and second moving means 45, 46 is changed and the rear engagement is performed. It is only necessary to change the distance between the member 41 and the front engaging member 43.

In addition, when shape | molding the carton C in the said carton shaping | molding apparatus 3, in order to hold | maintain the shaping | molding state of the carton C, you may provide the reverse folding process which further folds the carton C from a shaping | molding state and attaches a wrinkle.
Specifically, from the delivery position shown in FIG. 3C, the lower suction member moving means 13 further moves the lower suction member 12 forward, and the upper suction member moving means 15 is used to deform the carton C. Accordingly, the upper suction member 14 may be lowered.
As a result, the front surface C3 and the rear surface C4 of the carton C are inclined rearward, and it is possible to prevent the bent wrinkles from returning to the flat state before molding at the time of supply.
When this reverse folding process is performed, if the tilt correcting member 22 is fixed to the upper base 21 via a biasing member such as a spring, the tilt correcting member 22 is not bent even if the rear surface C4 tilts backward. Evacuates and can prevent damage to the carton C.

FIG. 5 shows a carton forming apparatus 103 according to the second embodiment. The carton molding apparatus 103 according to the present embodiment molds a large carton Cb before molding supplied in a so-called reverse handed state in which the top surface C1 and the front surface C3 face upward and the bottom surface C2 and the rear surface C4 face downward. ing.
The carton molding apparatus 103 according to the present embodiment has substantially the same configuration as the carton molding apparatus 3 according to the first embodiment, and detailed explanations other than the differences described below are omitted and common members are omitted. Is described by adding 100 to the code used in the first embodiment.
In the present embodiment, the upper base 121 of the lower suction member moving means 113 is provided with an inclination correction member 122 in front of the lower suction member 112 and is in contact with the tip of the large carton Cb before molding. The direction of the large carton Cb is corrected.
FIG. 5A shows a state in which the lower suction member 112 is retracted below the transport surface by the lower suction member moving means 113 and is positioned at a standby position further forward than the molding start position. The upper suction member 114 is also located at the standby position located above and in front by the upper suction member moving means 115.

FIG. 5B shows a state where the large carton Cb is positioned at the molding start position, the lower suction member 112 sucks and holds the bottom surface C2 of the large carton Cb, and the upper suction member 114 sucks and holds the top surface C1. ing.
The lower suction member moving means 113 moves the first and second lower bases 125 and 126 rearward from the state shown in FIG. 5A, and at this time, the first lower base 125 is made slower than the second lower base 126. As a result, the first and second lower bases 125 and 126 approach each other.
As a result, the inclination correction member 122 moves backward while projecting above the conveying surface, and comes into contact with the tip of the large carton Cb before molding to correct the direction of the large carton Cb.
Here, while the orientation of the tip of the large carton Cb is corrected by the inclination correction member 122, the lower suction member 112 is maintained in a state of being retracted below the placement surface.
When the direction of the large carton Cb is corrected by the inclination correction member 122, the second lower base 126 stops and the first lower base 125 approaches the second lower base 126.
Then, the lower suction member 112 rises substantially vertically, and the lower suction member 112 sucks and holds the bottom surface C2 of the large carton Cb, so that the lower suction member 112 is positioned at the molding start position.
By operating the lower adsorbing member moving means 113 in this way, the bottom surface C2 of the large carton Cb and the lower adsorbing member 112 are prevented from rubbing with each other, and scratches on the large carton Cb are prevented. Further, it is possible to prevent the resin portion of the lower adsorption member 112 from being damaged.

FIG. 5C shows a state where the lower suction member 112 and the upper suction member 114 are moved upward and forward by the lower suction member moving means 113 and the upper suction member moving means 115, respectively.
By performing the operation shown in FIG. 5 (c), it is possible to prevent the load in the shearing direction from acting on the front surface C3 and the rear surface C4 when the large carton Cb is formed, and to prevent the large carton Cb from being distorted. It has become.
The upper adsorbing member moving means 115 swings the upper adsorbing member 114 by a predetermined amount, and the lower adsorbing member moving means 113 lowers the lower adsorbing amount by the same amount as the upper adsorbing member 114 is raised and moved forward. The member 112 is moved.
Specifically, the lower suction member moving means 113 moves the first and second lower bases 125 and 126 forward, and at this time, the first lower base 125 is made faster than the second lower base 126, The lower suction member 112 moves along the trajectory described above.

FIG. 5D shows a state in which the upper suction member 114 and the lower suction member 112 are molded while moving the large carton Cb to the delivery position.
The lower adsorbing member moving means 113 moves the first and second lower bases 125 and 126 rearward, and at this time, makes the first lower base 125 faster than the second lower base 126.
As a result, the lower suction member 112 that sucks and holds the bottom surface C2 of the large carton Cb moves backward while lowering the bottom surface C2 to the height of the placement surface, and thereby the bottom surface C2 moves to the delivery position.
On the other hand, the upper suction member moving means 115 continues the operation of FIG. 5B and further moves the upper suction member 114 from the rear to the front, and the top surface C1 moves to the delivery position. .
As a result, the top surface C1 of the large carton Cb rises while relatively moving from the rear to the front with respect to the bottom surface C2, and the front surface C3 and the rear surface C4 stand up to form the large carton Cb.
In this delivery position, the first and second flange members 142 and 144 of the transport device 104 are waiting below the molded large carton Cb, and the long rear engagement member 141L and the long front engagement member 143L are substantially omitted. A large carton Cb is located in the middle.

The carton molding apparatus 103 of the second embodiment has almost the same configuration as the carton molding apparatus 3 described in the first embodiment. By changing the setting of the lower suction member moving means 113, the carton molding apparatus 103 is reversed. It is possible to mold even a large carton Cb before being formed supplied in a self-contained state.
In addition, by providing the inclination correction member 122 in front of the lower suction member 112, the inclination of the large carton Cb supplied in a reverse-handed state can be corrected.
Further, if the operations of the lower suction member moving means 113 and the upper suction member moving means 115 are controlled, the large carton Cb and the small carton Cs can be formed as in the first embodiment. It is also possible to make the delivery position constant by matching the positions of the rear surfaces C4 of the cartons Cb and Cs.

DESCRIPTION OF SYMBOLS 1 Boxing line 3 Carton forming apparatus 4 Conveying apparatus 12 Lower adsorption member 13 Lower adsorption member moving means 14 Upper adsorption member 15 Upper adsorption member moving means 21 Upper base 22 Tilt correction member 23 First rail guide 24 Second rail guide 25 First lower base 26 Second lower base 27 First link member 28 Second link member C Carton C1 Top surface C2 Bottom surface

Claims (5)

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. From a state before molding, a carton molding device that raises the front and rear surfaces to form a molding state in which a bottom surface and a top surface are separated from each other, and delivers the carton to a conveying device,
An upper adsorbing member for adsorbing and holding the top surface of the carton, an upper adsorbing member moving means for moving the upper adsorbing member, a lower adsorbing member for adsorbing and holding the bottom surface of the carton, and moving the lower adsorbing member to In the carton molding device provided with the lower suction member moving means for moving the carton to the delivery position to the conveying device,
The carton before molding is supplied with the rear and top surfaces facing upward, and the front and bottom surfaces facing downward,
The lower adsorbing member moving means is configured to move the lower adsorbing member that adsorbs and holds the bottom surface of the carton at the molding start position to the downstream side in the conveying direction to move to the delivery position,
The upper suction member moving means moves the upper suction member that holds the top surface of the carton by suction at the molding start position in synchronization with the movement of the lower suction member from the molding start position to the delivery position. A carton forming apparatus configured to move up to a delivery position while moving to the side and move the carton to a molding state. A supply means for supplying a small carton having a small space between the bottom surface and the top surface in a molded state and a large carton having a wide space;
The delivery position when molding the small carton and the delivery position when molding the large carton are the same in the conveying direction of the rear surface of the small carton and the large carton in the molded state,
The lower suction member moving means positions the molding start position of the lower suction member when molding a small carton ahead of the molding start position of the lower suction member when molding the large carton. The carton molding apparatus according to claim 1, wherein the carton molding apparatus is configured as follows. The lower adsorption member moving means is
First and second rail guides provided in parallel along the transport direction, a first lower base that moves forward and backward along the first rail guide, a second lower base that moves forward and backward along the second rail guide, An upper base provided with the lower adsorption member on the upper surface, a plurality of first link members provided in parallel forming a parallel link by the first lower base and the upper base, and one end of the first link member 3. A carton according to claim 1, wherein the carton comprises a substantially central portion and a second link member having the other end pivotably connected to the second lower base. Molding equipment. An inclination correction member is provided on the upper base,
The tilt correction member is located below the supplied carton before molding and is moved upward from the rear end of the carton in the conveying direction, while the upper base moves upward. 4. The carton molding apparatus according to claim 3, wherein a rear end portion of the carton is pressed forward.   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. From a state before molding, a carton molding device that raises the front and rear surfaces to form a molding state in which a bottom surface and a top surface are separated from each other, and delivers the carton to a conveying device,
  An upper adsorbing member for adsorbing and holding the top surface of the carton, an upper adsorbing member moving means for moving the upper adsorbing member, a lower adsorbing member for adsorbing and holding the bottom surface of the carton, and moving the lower adsorbing member to In the carton molding device provided with the lower suction member moving means for moving the carton to the delivery position to the conveying device,
  The carton before molding is supplied with the front and top surfaces facing upward, and the rear and bottom surfaces facing downward,
  The upper adsorbing member moving means moves the upper adsorbing member, which adsorbs and holds the top surface of the carton at the molding start position, upward and forward by a predetermined amount toward the delivery position, and at the same time, the lower adsorbing member moving means The lower adsorbing member that adsorbs and holds the bottom surface of the carton at the molding start position is moved by the same amount as the upward amount and the forward movement amount of the upper adsorbing member,
  From this state, the upper adsorbing member moving means continues to move the upper adsorbing member from the rear to the front to move to the delivery position, and the lower adsorbing member moving means is the lower adsorbing member with the bottom surface adsorbed and held. The carton forming apparatus is configured to move the carton to a delivery position by lowering and moving the carton into a molding state.

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