JPH04193531A - Automatic box manufacturing machine - Google Patents

Abstract

PURPOSE:To accurately stick a tape on the abutting face of an outer flap at the bottom by folding the flap at the bottom of a box material by means of a box material bottom forming unit, holding the flap as folded, moving a tape sticking unit thereto and sticking an adhesive tape at the bottom of the box material. CONSTITUTION:Box materials W are piled up on top a box material feeding unit 4, one piece each of box material W is moved by the box material feeding unit to a box material bottom forming unit 3 and a bottom flap of the box material is folded to form the bottom. While the flap is held as it is folded, a tape sticking unit 100 is moved to the box material to stick a tape on the bottom of the box material. Since the tape is stuck under the condition that the box material W is securely supported by the box material bottom forming unit 3, the bottom of the box material is formed to perfection. Furthermore, a simultaneously folding member 191 is provided at the leading edge of the tape sticking unit 100 to accurately fold the bottom flap immediately before the tape is stuck, followed by tape sticking. At the same time, at the trailing edge of the tape sticking unit 100, a tape followup member 120 is provided to follow up the tape after it is stuck and get the tape steadily adhered to the box material.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an automatic box making machine, and particularly for forming a box material such as a cardboard box, which is folded into two flat pieces with its flaps extended, into a rectangular tube shape. This invention relates to an automatic box making machine that seals the bottom flap with adhesive tape after opening the box and folding the bottom flap of the box material.

(Prior Art) A similar device of this type is disclosed in Japanese Patent Application Laid-Open No. 1-99929. The structure and operation of this device will be explained with reference to FIGS. 8 and 9.

a magazine 211 that accumulates flatly folded box materials B;
A folded box material feeding section 213 is provided with a feeding claw 212 on the top surface for taking out and transporting folded box materials B one by one from the bottom of the magazine 211. A box opening section 214 is provided in connection with the edge of the folded box material feeding section 213, and a suction pad device 215 is provided in this interface section 214 for sandwiching the inner and outer flaps of the folded box material. Furthermore, a device 216 for holding both sides of the art material B opened by the suction pad device 215, a blade device 217 for folding the internal flap, and a blade device 218 for folding the same flap are provided. Further, in this intermediate section 214, upper and lower feed claw devices for transferring the art material B whose bottom portion has been formed by the above-mentioned devices to the tape pasting unit 219 are installed inside the hollow beam 220 and on the top of the pedestal 220. And this tape pasting unit 21
9 is provided with a shooting surface device for pasting tape along the same flap while the box B is moving.

Art materials B folded flat and accumulated in the magazine 211
The lowest drawing material is moved to the opening 2 by the feeding claw 212.
Sent to 14th. Here, the lower side surface of the art material B is fixed by a fixed suction cup, and the upper side surface is suctioned by a movable suction cup and raised to a right angle. As a result, the art material B is expanded into a rectangular tube shape. The internal flap at the bottom of the material is then folded over, and the same flap is folded over to form the bottom.

The art material on which the bottom has been formed is transferred to the tape pasting unit 219 by the upper and lower feed claw devices, and while the art material is being moved, the tape is pasted by the tape pasting unit 219 across the seam of the same name flaps, and is removed from the apparatus. sent to the sending section.

[Problems to be Solved by the Invention] However, in the above-mentioned device, while the art material with the bottom portion formed is moved by the feeding claw device, the flap bulges outward, and in this state, the tape is applied by the tape pasting unit. Because it hangs over the seam of the outer flap,
Problems occurred in that the tape was pasted without the ends of the outer flaps meeting neatly, resulting in an incomplete bottom.

Originally, the width of the bottom of cardboard boxes and other art materials perpendicular to the seam of the outer flaps was slightly larger than the width of the box itself, in order to prevent gaps from forming at the seam of the outer flaps due to the weight of the contents. This is also the reason why the above problems are more likely to occur.

An object of the present invention is to prevent the above-mentioned problems from occurring, and to accurately attach tape to the seam of the outer flaps at the bottom of the art material, thereby achieving complete formation of the bottom of the art material.

(Means for Solving the Problems) In order to achieve the above object, the present invention has the following configuration. That is, a pedestal housing a control device, a box supply unit connected to the pedestal, and a bottom part of the box provided on the pedestal unit, which forms the bottom of the art materials supplied from the box supply unit. A forming unit is provided movably up to the box bottom forming unit by a moving means provided on the pedestal, and the bottom of the art material held on the box forming unit is attached with tape, and the tape is attached. The present invention is characterized in that it comprises a tape pasting unit that sends out the subsequent art materials to the outside of the gantry unit.

Furthermore, the present invention is characterized in that a simultaneous folding member is provided at the front end of the tape applying unit, and a tape tracing member is provided at the rear end.

(Function) With this configuration, the art materials stacked on the box supply unit are moved one by one to the box bottom forming unit by the box material supply unit, and the bottom flaps of the art materials are folded to form the bottom. While forming and gripping, the tape applying unit is moved to the art material by a moving means, and the tape is stuck to the bottom of the art material. At this time, the art material is firmly held by the box material bottom forming unit and the tape is attached, so that the bottom of the art material is completely formed. Furthermore, a simultaneous folding member is provided at the front end of the tape application unit, which allows the bottom flap to be accurately folded just before tape application before applying the tape, and a tape tracing member provided at the rear end of the tape application unit. After the tape has been applied, the tape is traced over the top of the tape to make it stick more firmly to the art material.

(Example) An embodiment of the present invention will be described below with reference to the drawings.

In Figures 1 to 4, ■ is a pedestal, which has a two-step staircase shape, and when viewed from the front, the front part is the lower part 1a.
, the rear part is a high step part 1b. A control device 2 is built in the lower part 1a. A box material supply unit 4 is connected to the high stage portion 1b for stacking the art materials W to be assembled and transferring them one by one to the box material bottom forming unit 3 on the pedestal 1. A top plate 5 is continuously attached to the upper surface of the high stage part ib and the box supply unit 4. A vertical guide plate 6 is erected at the boundary between the box material bottom forming unit 3 and the box material supply unit 4. A gap is formed between the lower edge of the vertical guide plate 6 and the top plate 5 through which one folded art material W can pass. The vertical guide plate 6 is formed in an L-shape, and the right-angled portions of the folded art materials W are pressed against the corner portions of the vertical guide plates 6 to stack and stack them.

Hollow supports 7.
7 is installed vertically, and the upper end of both supports 7.7 is a hollow beam member 8.
connected by. A screw nut 9.9 is rotatably mounted in the hollow interior of both struts 7.7 by means of a fitting. Also, in parallel to the screw nut 9.9, the guide shaft 10.10 is connected to the bracket 11.11.
via which they are each attached to the struts 7.7. An upper horizontal member 12 and a lower horizontal member 13 are installed on the screw nut 9.9 and the guide shaft 10.10. Inside the hollow beam member 8, a connecting rod 15 for transmitting the rotation of the handle 14 to the screw nut 9.9 and bevel gears 16 provided at both ends of the connecting rod 15 are installed.

The pitch of the upper screw nuts 9a that move the upper horizontal member 12 up and down is twice the pitch of the lower screw nuts 9b that move the lower horizontal member 13 up and down. Therefore, for example, when the upper horizontal member 12 moves by lOCm due to rotation of the handle 14, the lower horizontal member moves by 5 Crrl. These things are essential for forming the bottoms of art materials of various sizes.

Here, the box supply unit 4 will be explained. Frame 1
A screw nut 42 is connected to the handle 41 on the same plane as the lower part 1a of the screw nut 42, and a guide shaft 4 is mounted on both sides of the screw nut 42 connected to the handle 41.
3.43 is fixed.

A rodless cylinder 45 with a guide is attached to the screw nut 42 and the guide shaft 43 via an attachment member 44. Further, a movable plate 46 is attached to the rodless cylinder 45, and three feed claws 48 are respectively attached to the movable plate 46 via air cylinders 49 in correspondence with the three long holes 47 opened in the top plate 5. It is set in.

When the air cylinder 49 is operated, the feed claw 48 protrudes from the top plate 5 by one folded sheet of art material. Further, the origin position of the feed claw 48 is adjusted by the handle 41 via the screw nut 42 depending on the depth of the art material. In addition, the art supplies W are attached to the corner parts of the vertical guide plate 6.
It is pressed and organized by a.

Next, the box bottom forming unit 3 will be explained based on FIG. 3. 50 is a vacuum pad device. cylinder 51
is provided with its base end pivotally supported on the lower step portion 1a of the pedestal 1, and one end of its extensible tip is rotatably supported by a vertical support member 52 erected in the lower step portion 1a. It is pivotally supported by a link member 54 fixed to a horizontal member 53.

The height of the vertical support member 52 is such that the tip of the horizontal member 53 is slightly higher than the rear part 1b of the pedestal 1. Attached to the other end of the horizontal member 53 is a rotating member 56 having a vacuum pad 55 integrally provided at a right angle to its tip.

When the cylinder 51 is actuated and its tip extends, the link member 54 rotates 90 degrees counterclockwise about the tip of the vertical support member 52 as a fulcrum. Accordingly, the horizontal member 53 rotates, so that the rotating member 56 becomes perpendicular to the pedestal 1, and the vacuum pad 55 becomes open in the horizontal direction relative to the pedestal 1 at the tip of the rotating member 56. cylinder 51
When the tip of the link system is shortened, the link system moves in the opposite direction, and the vacuum pad 55 comes into contact with the surface of the upper part lb of the pedestal 1. The surface of the upper part 1b corresponding to the vacuum pad 55 has a circular opening, and a vacuum pad (not shown in the drawing) is provided facing this opening so that it can be moved in and out by a fluid pressure cylinder.

An inverted frame 60 is welded to the upper horizontal member 12 horizontally and toward the vertical guide plate 6. A left inner flap folding member 61 is attached to the frame 60 via an actuator m, and a right inner flap folding member 62 is attached to a position adjustment device 63, which will be described later, installed on the frame 60 via an actuator m2. The intrafungal flap folding members 61 and 62 are actuators m
They are each rotated inward by the drive of ob mz to perform the work of folding in the intrafungal flap.

The position adjustment device 63 for the right inner flap folding member 62 has a structure as shown in FIG. screw nut 64
has one end connected to the bellows unit 65 and the other end connected to the bearing 6.
7 to the frame 60. A handle 66 is connected to one end of the screw nut 64. A guide shaft 68 is attached to the frame 60 parallel to the screw nut 64 with both ends supported by bearings 69. Screw nut 64 and guide frame 68
A plate member 70 is attached to the plate member 70 so as to cross over the plate member 70, and a right inner flap folding member 62 is provided at the tip of the plate member 70 via an actuator m2.

Therefore, by rotating the handle 66, the right inner flap folding member 62 can be moved in the left-right direction, and can be adapted to the size of the art material.

Further, an upper outer flap folding member 72 is attached to the frame 60 via a bracket 71 and an actuator m3. The upper outer flap folding member 72 is rotated from the horizontal position to the vertical position by driving the actuator m3, and performs the work of folding the upper outer flap of the art material W inward.

Further, a holding member 76 is welded to the frame 60 via a bracket 75. The holding member 67 suppresses the movement of the art material during the formation of the box material.

A support member 80 is erected on the lower part 1a of the pedestal 1, and a lower outer flap folding member 82 is rotatably attached to the upper end of the support member 80 via an actuator m4. The member 82 is rotated from the horizontal position to the vertical position to perform the operation of folding the lower outer flap of the art material inward.

Next, a moving means 90 for reciprocating the tape sticking unit 100 to the left and right, which will be described later, will be explained.

As shown in FIG. 1, the moving means 90 includes an electric motor 91, a belt 92 driven by the electric motor 91, a guide rail 93 laid on the lower horizontal member 13 in parallel with the belt 92, and the like. be done. A sprocket 97 is fixed to the output shaft of the electric motor 91. A sprocket 94 is placed directly above the sprocket 97 on the lower horizontal member 13.
A sprocket 95 is provided on the lower horizontal member at the right end on the same plane as the sprocket 94.

Further, a guide wheel 96 is attached to the lower horizontal member 13 via a bracket on the right side of the sprocket 93 and on the same vertical plane. Therefore, the electric motor 9
1, the belt 92 is guided along the three sprockets and one guide wheel. Thereby, the tape sticking unit 100 connected to the belt 92 by appropriate means can follow the belt 92 and smoothly reciprocate on the guide rail 93.

Next, the tape sticking unit 100 will be explained with reference to FIG. 5.

A shaft 102 and a shaft 103 are disposed at the left and right positions of the frame 101, and the shaft 102 has a first swing arm 104 and a shaft 103.
A second swing arm 105 is pivotally attached to 3. The first swinging arm 104 has a rotatable sticking roller 106 on the side of the vertical guide plate 5, and operates swingably from a starting position perpendicular to the frame 101 to a range where it retracts into the frame 101. The other end of a spring 107 whose one end is fixed to the frame 101 is hooked to the first swing arm 104, and is biased to hold the sticking roller 106 at the starting position. Furthermore, the sticking roller 106 of the first swinging arm 104
The opposite side is the middle part of the second swing arm 105 and the connecting rod 10
8. A second swinging arm 105 having an adhesive roller 109 on the side of the vertical guide plate 5 can swing around the shaft 103 from a position perpendicular to the frame 101 whose operation is regulated by a stopper 110 to a range where it is recessed into the frame 101. Operate.

A cutter 112 is provided between the first swing arm 104 and the second swing arm 105 together with an abutment plate 111, so that after passing the art material W, the adhesive tape is cut leaving an appropriate adhesion length on the bottom of the art material. The contact plate 111 is attached to the shaft 113, and the spring 1
14, the vertical guide plate 6 is always urged to rotate in the direction of the vertical guide plate 6. Adhesive tape T connects connecting plate 1 connected to frame 101
It is placed on a reel 116 attached to the frame 101 and guided by a plurality of guide rollers 117 provided on the frame 101 and a guide roller 118 fixed to the first swing arm 104 and pulled out to the adhesive roller 106.

At the left end of the frame 101, a simultaneous folding member 119 is arranged substantially parallel to the longitudinal direction of the frame 101. The simultaneous folding member 119 is formed of a flat plate material with curved left and right ends, and immediately before the adhesive tape T is attached to the art material W,
The outer flap of the art material is folded inward and the mating surfaces are brought into exact contact. A tape tracing member 120 is disposed at the right end of the frame 101, and its lower end is hooked to a stem 1.22 via a spring 121, and its middle portion is hooked to a stem 123. There is. The spring 121 is biased so that the tape tracing member 120 always protrudes from the frame 101. The tape tracing member 120 is attached to the art material W and strongly traces the cut adhesive tape T from above to ensure that the tape is adhered to the art material. As shown in the figure, it is composed of two plate materials, but it is also possible to use two divided rollers.Furthermore, at the right end of the frame 101, there is a bar member 124 for moving art materials. One end of the spring 125 is rotatably supported by the frame 101, and the other end of the spring 125, whose one end is locked to the frame 101, is hooked to the middle part of the spring 125.
25. The art material moving bar member 124 moves the art material W to which the tape has been applied after all work is completed, by hooking the art material W onto its tip at the same time as the tape application unit 100 returns to the starting position.

130 is a connecting member that connects the tape sticking unit 100 to the belt 92 and guide rail 93 of the moving means 90.

Next, the operation of this embodiment configured as described above will be explained.

First, before operating the apparatus, the apparatus is adjusted as follows according to the size of the art material W (see FIG. 7). Turn the handle 14 to move the upper horizontal member 12S and the lower horizontal member 13 up and down,
Match the width of the art supplies W to Kansai. At this time, the center of the tape set in the tape adhering unit 100 is made to match the mating surface of the outer flap of the art material, and the presser member 76 is made to slightly press the front wall of the art material W. Next, the handle 66 is rotated to adjust the position of the rear inner flap folding member 62 to match the depth of the art material W. Further, the handle 41 is rotated to adjust the starting position of the feed claw 48 to match the height and width of the art material W.

Next, a plurality of art materials W to be assembled are stacked and placed on the top plate of the box material supply unit 4, and are pressed against the corner portions of the vertical guide plate 6 by the bar member 6a to organize them. This completes the manual preparation, and then the device begins automatic operation.

When the start button of the device is pressed, the air cylinder 49 is activated, and the feed claw 48 is pushed from the top plate 5 by a height corresponding to one sheet of folded art material W. In this state, the rodless cylinder 45 operates, the feed claw 48 moves along the long hole 47, and the folded art material W is passed through the gap between the top plate 5 and the vertical guide plate 6 to form the bottom of the box material. It is supplied onto the top plate 5 of the upper part 1b of the unit 3. Next, the vacuum pad device 50 is activated. That is, the rod of the cylinder 51 is shortened and the vacuum pad 55 is attracted to the upper surface of the folded art material W. Then, when the rod of the cylinder 51 is extended, it rotates 90 degrees counterclockwise while adhering to the upper surface of the art material W, so that the art material W is expanded into a rectangular tube shape. At this time, the back side of the folded art material W is suctioned and fixed by a vacuum pad (not shown in the drawing) that slightly protrudes from an opening in the top plate 5.

Therefore, the art material W expanded into a rectangular tube shape is fixed on three sides by both the vacuum pads and the pressing member 76, and in this state, the work of folding the flap and applying the adhesive tape are performed.

First, the actuator m1 is driven, and the front inner flap folding member 61 is rotated 90 degrees from a state perpendicular to the longitudinal direction of the upper horizontal member 12 to a state parallel to it, thereby folding the left inner flap at right angles. At the same time, the actuator m2 is driven, and the right inner flap folding member 62 is rotated 180 degrees from a state parallel to the longitudinal direction of the upper horizontal member 12 to a parallel state, thereby folding the right inner flap at right angles. At this time, the left and right inner flap folding members 61
．． The tips of 62 are in an opposing state. Next, the actuator m4 is driven, and the lower outer flap folding member 82 is rotated 90 degrees from the horizontal position to the vertical position, folding the lower outer flap at a right angle and holding the lower part of the inner flap. In this state, the actuators m 1 + m 2 are reversely rotated, and the side inner flap folding members 61, 62 are retracted to the starting position.

Then, the actuator m3 is driven, and the upper outer flap folding member 72 rotates 90 degrees from the horizontal position to the vertical position, folding the upper outer flap at a right angle.

Next, the electric motor 91 is activated and the belt 92 is rotated, so that the tape sticking unit 100 is guided by the belt 92 and the guide rail 93 and moved to the holding position for the art material W. In FIG. 5, the tape sticking unit 100 is
direction, the simultaneous folding member 119 moves along the mating surfaces of the upper and lower outer flaps to eliminate overlapping of the mating surfaces. Next, the tip of the adhesive tape T is pasted to the center of the right side wall of the art material W by the pasting roller 106, and as it moves further, the pasting roller 106 rotates to the right around the shaft 102 to adjust its insertion into the frame lot. While doing so, the adhesive tape T pulled out from the reel 116 is applied to the mating surface of the art material W. At this time, the adhesive roller 1
09 rotates to the left about the shaft 103 and enters the frame 101 and comes into contact with the mating surface of the art material W, and the contact plate 111 also rotates to the right about the shaft 113 and moves inside the frame 101. It is in contact with the contact surface of the art material W while immersed in it. Further, when the adhesion of the tape on the abutment surface is completed and the contact plate 111 separates from the art material W, it rotates to the left about the shaft 113 as a fulcrum due to the biasing force of the spring 114, and the art material W and the adhesion roller 106 are rotated to the left. Cut the adhesive tape T in between, leaving an appropriate length. This uncut tape is stuck to the left side wall of the box W by the sticking roller 109 when the second swing arm 105 rotates in the right direction about the shaft 103 as a fulcrum. In addition, the adhesive tape T attached to the mating surface of the art supplies W
is traced over by the tape tracing member 120, so that the tape is strongly adhered.

When the work of pasting the adhesive tape T is completed, the electric motor 91
is reversed, and the tape application unit 100 moves to the right and returns to the starting position. At this time, the art materials W are moved to the art material moving bar member 1 provided at the right end of the frame 101 of the unit 100.
24 to the right together with the unit 100 and sent out of the automatic box making machine.

By repeating the above operations, the folded art materials are automatically assembled into an assembly box with a formed bottom.

(Effects of the Invention) As is clear from the above description, adhesive tape is applied to the bottom of the art material by folding and holding the flap at the bottom of the art material by the box bottom forming unit and moving the tape pasting unit there. Since the tape is attached, the outer flap abutting surface of the bottom of the art material can be accurately pasted with the tape, and the bottom of the art material can be completely formed. moreover,
Since the tape adhering unit is provided with a simultaneous folding member and a tape tracing member, the above effects can be enhanced.

[Brief explanation of the drawing]

FIG. 1 is a front view of an automatic box making machine showing an embodiment of the present invention;
FIG. 2 is a plan view of FIG. 1, FIG. 3 is an enlarged view showing the box bottom forming unit, FIG. 4 is a plan view of FIG. 3, and FIG. 5 is a plan view showing the tape pasting unit. 6 is a side view taken from II in FIG. 5, especially showing the tape tracing member; FIG. 7 is a perspective view showing the state in which the bottom of the art material is formed; FIG. 8 is a front view showing a conventional example; and FIG. The figure is a plan view of FIG. 1... Frame, 2... Control device. 3... Box material bottom forming unit. 100...Tape sticking unit. 119... Simultaneous folding member. 120...Tape tracing member. W...-Box material Figure 6 9! Housing Figure 8 Figure 9

Claims (2)

[Claims] (1) A pedestal housing a control device, a box supply unit connected to the pedestal, and a box provided on the pedestal unit that forms the bottom of the box supplied from the box supply unit. A material bottom forming unit and a moving means provided on the frame are provided so as to be movable up to the box material forming unit, and the bottom portion of the box material held on the box material forming unit is affixed with tape. An automatic box making machine comprising: a tape pasting unit that sends the pasted box material out of the frame unit. (2) The automatic box making machine according to claim 1, further comprising a simultaneous folding member at the front end of the tape sticking unit and a tape tracing member at the rear end.