JPH077146Y2 - Bottom plate supply device for box assembly - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is a box used as a container for various bento boxes for sale, tsukudani, various prepared foods, that is, for fitting a folding groove and a bottom plate corresponding to each corner of the box. The present invention relates to a bottom plate supply device that supplies the bottom plate to an assembly position when assembling a box that is assembled from a strip-shaped side frame plate having a groove and a rectangular bottom plate.

(Prior Art and Its Problems) Assembling a box of this type has conventionally been performed manually. That is, in a state where the side frame plate glued in the bottom plate fitting groove and the joint portion at one end in the length direction of the side frame plate is placed on the horizontal table, one side face part of the side frame plate is placed. The corresponding one side edge of the bottom plate is fitted into the groove for fitting the bottom plate to stand the bottom plate, and the side frame plate is bent so that the side frame plate is wound around the bottom plate, and the bottom plates of the remaining side portions Each of the assembling steps of manually fitting each side edge of the bottom plate into the fitting groove and finally overlapping and adhering the joints in the lengthwise ends of the side frame plates to each other was performed manually.

Since such a manual box assembling method requires a great deal of labor and time, it has a drawback that the box assembling cost is high.

So, a box assembly device that automatically assembles this kind of box,
That is, the bottom plate is moved toward the side frame plate in a state where the side frame plate is held at a predetermined position on the horizontal support plate, and thus the front edge of the bottom plate is moved to the intermediate one side surface portion of the side frame plate. In the groove for fitting the bottom plate, the side frame is pushed between the pair of left and right side frame plate bending guides by the bottom plate, and both side surface parts adjacent to the intermediate one side surface part of the side frame plate are connected to the bottom plate side. A box assembling apparatus of the type in which both are bent and fitted to each other has been considered, but this box assembling apparatus requires a bottom plate supply means for horizontally supporting and horizontally feeding the bottom plate.

As the bottom plate supply means used in such a box assembly device, for example, based on the one disclosed in Japanese Patent Laid-Open No. 61-63451, a bottom plate storage part for stacking and storing bottom plates, and a bottom plate storage part of this bottom plate storage part. Bottom plate conveying means for conveying the bottom plates one by one from the lower end to the box assembling position, and the bottom plate conveying means includes a bottom plate supporting base for horizontally supporting the bottom plates and feeding the bottom plates to the box assembling position. The base has a bottom plate supporting surface for supporting the bottom plate in a state where the front edge portion and the left and right side edge portions of the bottom plate are projected, and a bottom plate suction vacuum suction plate arranged on the bottom plate supporting surface. A box assembly bottom plate supply device having a rising cross section for positioning the rear side edge of the bottom plate is conceivable, but the following problems have occurred.

That is, in order to accurately obtain the level of the three side edges of the bottom plate supported by the bottom plate support base, the bottom plate support base is provided with a bottom plate support surface only around the periphery corresponding to the peripheral portion of the bottom plate. A plurality of vacuum suction plates for sucking the bottom plate must be arranged in the recess inside the surface.

Therefore, when the bottom plate is fed onto this bottom plate support, even if the bottom plate sent out from the conveyor in the horizontal direction is slid on the bottom plate support to be positioned at a predetermined position, the periphery of the bottom plate support is excluded. Since the bottom plate suction vacuum suction plate, which is disposed at a level that is approximately the same as or slightly protrudes upward from the surrounding bottom plate support surface within a wide range, contacts the bottom plate, the bottom plate smoothly slides to a predetermined position. I can't get a guarantee. For this reason, there is a possibility that the bottom plate will stop before a predetermined position, or the bottom plate will be supported on the bottom plate support in a state where the direction has changed, and it will not be possible to reliably fit the side frame plate in the next step.

Of course, it is also conceivable to directly receive the bottom plates one by one from the bottom plate storage part for stacking and storing the bottom plates directly by the bottom plate support, as in the device described in the above-mentioned Japanese Patent Laid-Open No. 61-63451. However, in this case, the bottom plate support base equipped with the vacuum suction plate for bottom plate suction must also be moved up and down, which complicates the drive mechanism of the bottom plate support base and the piping structure for the vacuum suction plate. Since a special stopper mechanism for stopping the second bottom plate that overlaps the bottom plate of the bottom of the storage section is also required, the cost of the entire equipment increases.

(Means for Solving the Problem) The present invention is intended to solve the above-mentioned conventional problems, and is characterized by a bottom plate storage portion for stacking and storing bottom plates and the bottom plate storage part. Bottom plate transporting means for transporting the bottom plates one by one from the lower end of the storage part to the box assembly position, the bottom plate transporting means comprising a bottom plate support base for horizontally supporting the bottom plates and feeding the bottom plates to the box assembly position, The bottom plate support base is provided inside the bottom plate support surface, and a bottom plate support surface that supports only the periphery of the bottom plate in a state where the front edge portion and the left and right side edge portions of the bottom plate are projected. A bottom plate supply device for box assembly, comprising: a vacuum suction plate for sucking a bottom plate; and a rising cross section for positioning the rear side edge of the bottom plate, wherein the bottom plate transfer means comprises a bottom plate transfer device and a lifting drive means. The bottom plate transfer device is provided from the bottom plate storage unit. And a pair of left and right openable receiving plates that receive the bottom plate above the standby position of the bottom plate support, and a vacuum suction plate that can move up and down to suck the bottom plate received by the receiving plate. From the lift standby position of the vertically movable vacuum suction plate, a first height for sucking the bottom plate on the receiving plate,
The point is to lower the sucked bottom plate to a second height at which it is transferred onto the bottom plate support.

(Embodiment) A box forming machine using a bottom plate supply device according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, 1 is a housing part for the band-shaped side frame plates, 2 is a side frame plate carrying means for carrying the side frame plates A one by one from the housing part 1 to an assembly position 3, and 4 is the assembly position 3 Gluing means for gluing the side frame plate A on the way to the side frame plate A, 5 is a bottom plate housing part, 6 is a bottom plate B from the bottom plate housing part 5 to the assembly position 3.
Bottom plate conveying means for conveying the sheets one by one, 7 is the assembly position 3
The box unloading means for unloading the box that has been assembled in 1., the box assembling device 8 arranged at the assembly position 3, and the box transferring means 9 for transferring the assembled box onto the box unloading means 7. .

As shown in FIG. 2, the side frame plate accommodating portion 1 is composed of a surrounding frame 11 for positioning the stacked side frame plates A at a fixed position on the feed table 10 and a vertically movable retainer 12. The side plate 11a on the delivery side of the surrounding frame 11 is adjusted in height by a height adjusting screw 13 according to the thickness of the side frame plate A to be used, and is fixed by a fixing screw 14.

The side frame plate conveying means 2 feeds the side frame plate A in the width direction intermittently on the feed table 10, and the side frame plate A from the end of the feed table 10 in the length direction. It is composed of a lateral feed belt conveyor 16. The vertical feed device 15 includes a movable body 18 supported by a slide guide 17 so as to be movable in the feed direction, a drive lever 19 that reciprocates the movable body 18 within a certain range, and the movable body 18 is equally spaced in the feed direction. Multiple horizontal rotary shafts 20, 20a supported at intervals
And the feed claws fixed to the rotary shafts 20 and 20a at appropriate intervals.
21,21a, a link 23 for interlockingly connecting the respective rotary shafts 20,20a via the arms 22 attached to the respective rotary shafts 20,20a, an arm 24 attached to one rotary shaft 20,20a, and Movable body
It is composed of a cylinder 25 interposed between the cylinder 18 and the cylinder 18.

Thus, by rotating one rotating shaft 20a in the constant angle range by the cylinder 25, all the rotating shafts 20 and 20a rotate in the constant angle range via the link 23 and the arm 22. , All the feed claws 21 and 21a are switched between a standing posture protruding from the slit 10a formed in the feed table 10 (see FIG. 3) and a retracted posture retracting rearward from the feed table 10. On the other hand, by moving the movable body 18 back and forth within a certain range by the drive lever 19,
Since the 21,21a reciprocate in the feed direction, the movable frame 18 is moved forward in the feed direction with the feed claws 21,21a in the upright posture, so that each side frame plate A on the feed table 10 is fixed. You can send only the pitch. When the movable body 18 is moved backward, the feed claws 21 and 21a are switched to the retracted posture. The feed claw 21a located at the rear end feeds out only one side frame plate A from the lower end of the side frame plate housing 1 by the forward movement in the upright posture.

As shown in FIG. 12A, the side frame plate A includes folding grooves Aa to Ac corresponding to corners of the box, a bottom plate fitting groove Ad formed along one side, and chamfers at both ends in the length direction. It is provided with joints Ae and Af.

As shown in FIGS. 2 and 3, the gluing means 4 is attached to the first gluing device 26 for gluing to the bottom plate fitting groove Ad of the side frame plate A and one joint portion Ae of the side frame plate A. It comprises a second gluing device 27 for gluing. First gluing device
The reference numeral 26 designates a movable base which is movably supported by a guide rail 28 on the feed table 10 in a lateral direction perpendicular to the feed direction of the side frame plate.
29, and a toothed wheel 30a axially supported at both ends of the guide rail 28,
A drive chain 31 which is hung between 30b and whose both ends are locked to the movable table 29, a motor 32 for driving one tooth wheel 30a in forward and reverse directions, and an adhesive discharge nozzle attached to the movable table 29. It is composed of unit 33 and.

Then, as shown in FIG. 2, the adhesive is just above one end of the bottom plate fitting groove Ad in the side frame plate A which is stopped by being sent to the final stop position P1 on the feed table 10 by the feed claw 21. When the agent discharge nozzle unit 33 is located,
The drive chain 31 is normally rotated by 32 to move the movable table 29 forward along the guide rail 28, and at the same time, the adhesive is ejected from the adhesive ejection nozzle unit 33 to stop at the final stop position P1. The adhesive Ag can be dropped and applied into the bottom plate fitting groove Ad of the side frame plate A, as shown in FIG.

The second gluing device 27, as shown in the phantom line in FIG. 1 and in FIG.
The adhesive discharge nozzle unit 34 is fixedly supported so as to be located right above the joining portion Ae of the side frame plate A fed from P1 to the next lateral feed belt conveyor 16.

Therefore, the side frame plate final stop position P1 on the feed table 10
Side frame plate A feeds from one side to the next horizontal feed belt conveyor 16
When it is sent by 21, the adhesive ejection nozzle unit 34 ejects the adhesive from the adhesive ejection nozzle unit 34 for a predetermined time, so that the side frame plate A as shown in FIG.
The adhesive Ah can be applied by dropping onto the joint Ae.

The bottom plate accommodating portion 5 is provided with a surrounding frame 36 for positioning the stacked bottom plates B on the feed table 35 at a low value as shown in FIGS. A side plate 38 whose height is adjusted by an adjusting screw 37 according to the thickness of the bottom plate B to be used is attached to the lower part of the enclosure frame 36 on the delivery side.

The bottom plate conveying means 6 shown in FIG. 1 is, as shown in FIG. 4 and FIG. 5, a first conveying device 39 for feeding out only one bottom plate B from the lower end of the bottom plate accommodating portion 5, and this first conveying device. Device 39
From the first transfer device 39 to the second transfer device 40 that inherits the bottom plate B from the first transfer device 40 and transfers it to the assembly position 3 at a right angle.
The bottom plate transfer device 41 transfers the bottom plate B to the bottom plate 40.

The first transfer device 39 supports a plurality of feed claws 42 projecting upward from the slits provided in the feed table 35 as shown in FIG. 1, and each feed claw 42 as shown in FIG. A movable base 43, a rodless cylinder 44 (which may be an ordinary cylinder) that reciprocates the movable base 43, and a pair of top and bottom that conveys the bottom plate B sent from the bottom plate storage section 5 by the feed claws 42 from above and below. Belt conveyors 45A, 45B
And a motor 46 that drives both belt conveyors 45A and 45B (or only the upper belt conveyor 45A). The second transfer device 40 includes a movable base 48 supported by a slide guide 47 so as to be reciprocally movable, and the movable base 48.
It is composed of a drive chain 49 whose both ends are locked to each other and is driven to rotate forward and backward by a motor (not shown), and a bottom plate support base 50 supported by the movable base 48. As shown in FIG. 6, a rectangular frame-shaped support surface 51 for supporting the peripheral portion of the bottom plate B, a plurality of vacuum suction plates 52 arranged in a recess surrounded by the support surface 51, and the bottom plate B. It has a rising cross section 50a for positioning the rear side edge. As shown in FIGS. 4 and 5, the bottom plate transfer device 41 includes a pair of left and right receiving plates 53a, 53b for receiving the bottom plate B fed from the belt conveyors 45A, 45B of the first transfer device 39, Cylinders 55a and 55b that rotate and open and close the receiving plates 53a and 53b around the support shafts 54a and 54b, a lift table 57 that is supported by a lift guide rod 56 to be able to move up and down, and a lower side of the lift table 57. In addition, a plurality of vacuum suction plates 59 mounted so as to be able to rise within a certain range against the pressing force of the spring 58, respectively,
The vacuum suction disk 59 reaches the support level of the receiving plates 53a and 53b, and the first cylinder 60 that lowers the lifting platform 57 to the first height L1 and the vacuum suction disk 59 reaches the bottom plate support level of the support table 50. It is composed of a second cylinder 61 for lowering the lifting platform 57 to the second height L2. In addition, 62 shown in FIG.
Is a bottom plate stopper for receiving and positioning the tip of the bottom plate B sent onto the receiving plates 53a, 53b. Further, the functions of the first cylinder 60 and the second cylinder 61 may be reversed.

Then, one bottom plate B is sent out from the lower end of the bottom plate storage portion 5 between the belt conveyors 45A and 45B by the feed claw 42 which is moved forward by the rodless cylinder 44, and further the bottom plate B is fed by the belt conveyors 45A and 45B. Is sent out onto the receiving plates 53a, 53b in the closed posture shown by the solid line in FIG. 5 and positioned by the stopper 62. Next, the lift 57 is lowered to the first height L1 by the first cylinder 60 and brought into contact with the bottom plate B on the receiving plates 53a and 53b of the vacuum suction plate 59, and the bottom plate B is placed on the vacuum suction plate 59. Adsorb. In such a state, the receiving plates 53a and 53b are opened by the cylinders 55a and 55b, and the lifting platform 57 is lowered to the second height L2 by the second cylinder 61. As a result, as shown by the phantom line in FIG. 5, the bottom plate B attracted to the vacuum suction disk 59 is the support surface of the bottom plate support base 50.
51 is lowered. In such a state, the bottom plate B is sucked by the vacuum suction plate 52 of the bottom plate support base 50, and at the same time, the suction action of the vacuum suction plate 59 is released. Is crimped, the bending deformation of the bottom plate B is corrected, and the peripheral portion is located on one horizontal plane.
At this time, the three sides of the bottom plate B, that is, the respective side edges of the front side and the left and right side sides on the bottom plate longitudinal feeding direction side by the bottom plate support 50 are the sixth side.
As shown by the phantom line in the figure, it slightly projects from the bottom plate support 50. At this time, the rear edge of the bottom plate B is close to the rising cross section 50a formed on the rear side of the support surface 51. After this, the vacuum suction disk 59 is returned to the original height shown by the solid line in FIG. 5 by the ascending return of the lifting table 57, and the receiving plates 53a, 53b are also returned to the original closed posture.

When the bottom plate B is set on the bottom plate support base 50, the movable chain 48 is moved forward by the drive chain 49 to move the bottom plate support base 50.
The bottom plate B supported by can be sent to the assembly position 3.

As shown in FIG. 1, the rear half of the lateral feed belt conveyor 16 in the side frame plate conveying means 2 is located above the conveyance path of the bottom plate B by the bottom plate support 50. Then, as shown in FIG. 6 and FIG. 7, a horizontal side frame plate A stopped at a predetermined position on the belt conveyor 16 is provided in the rear half portion of the lateral feed belt conveyor 16 in a laterally parallel manner. A pusher 63 that pushes out and a side frame plate guide positioning device 64 that changes the side frame plate A that is pushed out by the pusher 63 to a vertical posture and positions the bottom plate B in the middle of the conveyance path are provided side by side.

The pusher 63 includes a movable body 66 supported by a guide rod 65 so as to be horizontally reciprocable, a push plate 67 attached to a lower end of the movable body 66, and a cylinder 68 for reciprocating the movable body 66. The side frame plate guide positioning device 64 includes a plurality of front side positioning pins 71 that are vertically moved by the cylinder 70 above the support plate 69,
A plurality of cylinders 72, which are driven up and down between a working position projecting upward from the support plate 69 and a retracted position retracting below the support plate 69, by a cylinder 72 arranged below the support plate 69. It is composed of a rear side positioning pin 73 and a side frame plate guide plate 74, and the side frame plate guide plate 74 is supported so as to swing forward and backward around a horizontal support shaft 75 and is pushed out by the pusher 63. Plate A is the front side positioning pin
The cylinder 76 switches between a tilted posture S1 for receiving the side frame plate A and the vertical posture S2 for dropping the side frame plate A between the front side positioning pin 71 and the rear side positioning 73.

Incidentally, so as to face the push plate 67 of the pusher 63, on the side where the side frame plate guide plate 74 of the lateral feed belt conveyor 16 is located,
A side frame plate guide 78 that is driven up and down by a cylinder 77 is also provided. Further, the bottom plate support base 50 reciprocates above the support plate 69. As shown in FIG. 4, the bottom plate support base 50 and the lower side of the support plate 69 for reciprocating the bottom plate support base 50. The movable table 48 provided is connected to the movable table column 48a which vertically penetrates a slit 69a formed in the support plate 69.

As shown in FIG. 1 and FIG. 8, the box assembling apparatus 8 has a first assembling path 79 that utilizes the bottom plate B conveying path of the bottom plate B and a first assembling path 79 that is continuous in a horizontal direction at right angles. And a second assembly path 80, and the side frame plate A includes the front side positioning pin 71 and the back side positioning pin 73 of the side frame plate guide positioning device 64 at the starting end position of the first assembly path 79. The first assembly path 79 is configured to be held in a vertical standing posture orthogonal to the path length direction of the first assembly path 79.
Side frame plate bending guides 81A and 81B are provided on both left and right sides of 79, respectively. This pair of left and right side frame plate bending guides 81
A and 81B have their starting end side left and right extending portions 81a at positions where the side frame plate A can be positioned together with the back side positioning pin 73 between the front side positioning pin 71 and the width of the box to be assembled. A curved guide portion is provided between the terminal end side parallel extending portion 81b and the starting end side left and right extending portion 81a which are opposed to each other in parallel with each other at a predetermined interval.
81c is formed.

At the end of the first assembly path 79, a fixed receiving guide 82 which also serves as the starting end side surface guide of the second assembly path 80 is arranged, and movable guides are provided on both left and right ends of the second assembly path 80. 83, 84 are provided, and a fixed stopper 85 is provided at the end of the second assembly path 80.
A pusher 86 that is capable of reciprocating in the path length direction is disposed. Further, a vertical frame roller 87 for guiding the side frame plate is disposed between the end of the side frame plate bending guide 81B in the first assembly route 79 and the second assembly route 80. As shown in the figure, the pair of left and right side frame plate bending guides
Inside the terminal-side parallel extension 81b of 81A, 81B, the left and right sides are supported by a height-adjustable support base 88 via a lift guide rod 89 so that they can be raised and lowered within a certain range, and are biased downward by a spring 90. A pair of side frame plate floating prevention guides 91A, 91
B is attached.

As shown in FIGS. 8 and 10, of the movable guides 83, 84 arranged on both the left and right sides of the second assembly path 80, the movable guide 83 on the side far from the first assembly path 79 is a cylinder. The movable guide 84 on the side closer to the first assembling path 79 is driven in parallel with the width direction of the second assembling path 80 by 92.
Is swayed by a vertical support shaft 95 at an end near the end of the second assembly path 80 on a movable base 94 that is driven by a cylinder 93 in parallel with the width direction of the second assembly path 80. A cylinder 96, which is movably supported and is interposed between the movable table 94 and the movable base 94, moves away from the second assembly path 80 and a parallel action position parallel to the path length direction of the second assembly path 80. It is switched to the tilt retreat position.

The pusher 86 is loosely fitted in the second assembly path 80 on a movable body 99 supported by a guide rod 97 so as to be movable in the path length direction of the second assembly path 80 and reciprocally driven by a rodless cylinder 98. Moreover, the push plate 100 facing the fixed stopper 85 is attached. This push plate 100
Shows the end side parallel extension 81b of the side frame plate bending guide 81A on the same side when it is in the retracted limit position as shown in FIG.
In succession.

The box carrying-out means 7 shown in FIG. 1 is composed of a belt conveyor 101 arranged below the second assembling path 80 in parallel with the length direction of the path 80. The box transfer means 9 shown in FIG. 1 is disposed below the pair of left and right movable guides 83, 84 in the second assembly path 80, as shown in FIGS. 8 and 10. A pair of left and right L-shaped receiving plates 102A and 102B and these L-shaped receiving plates 102A and 102B are swung forward and backward around the horizontal support shaft 103 to form the L-shaped receiving plates 102A and 102B in solid lines in FIG. The rotary actuator 104 is configured to switch between a closed position shown and an open position shown by an imaginary line. still,
In the first half of the first assembly path 79 and the second assembly path 80,
The support plate 69, which serves as a side frame plate sliding support surface, is installed, but an area sandwiched by the movable guides 83, 84 is formed with an opening 105 for dropping the assembled box downward,
The left and right sides of this opening are configured to be opened and closed by the L-shaped receiving plates 102A and 102B.

Next, a method of using the box forming machine configured as described above will be described.

As shown in FIG. 2, the side frame plates A are first stored in the side frame plate storage unit 1 in a stacked state such that the bottom plate fitting groove Ad faces upward on the side far from the lateral feed belt conveyor 16. In such a state, the vertical feeding device 15 of the side frame plate conveying means 2 is operated as described above, and the side frame plates A are fed out one by one from the lower end in the storage section 1 and the side frame plates on the feed table 10. A is intermittently transferred in parallel. The bottom plate fitting groove of the side frame plate A stopped at the final stop position P1 corresponding to the first gluing device 26
As shown in FIG. 12 (a), the adhesive Ag is dropped and applied by the first gluing device 26 and immediately before it is delivered onto the lateral feed belt conveyor 16, as shown in FIG.
The adhesive Ah is dropped and applied onto one of the joints Ae by the second gluing device 27.

After gluing, the vertical feed device 15 to the horizontal feed belt conveyor
The side frame plate A sent out onto the 16 drives the lateral feed belt conveyor 16 and conveys it in the length direction to a predetermined position corresponding to the pusher 63 and the side frame plate guide positioning device 64 shown in FIG. . At this time, the front end of the side frame plate A is detected at a plurality of fixed positions by a photoelectric switch or the like, and the lateral feed belt conveyor 16 is decelerated and stopped so that the front end of the side frame plate stops at the set position P2 based on the detection signals. Just control.

As shown in FIG. 6, when the side frame plate A stops at a predetermined position on the transverse feed belt conveyor 16, the side frame plate guide 78 is raised by the cylinder 77 as shown by the phantom line in FIG. After that, the push plate 67 of the pusher 63 is moved laterally on the lateral feed belt conveyor 16 by the cylinder 68, so that the side frame plate A on the lateral feed belt conveyor 16 is moved to the side frame plate guide positioning device.
The side edge of the side frame plate A that slides downward on the side frame plate guide plate 74 in the inclined posture S1 is pushed out onto the side frame plate guide plate 74 of 64 and abuts on the front side positioning pin 71 in the lowered position. To correct the posture of the side frame plate A.

Next, the side frame plate guide plate 74 is rotated by the cylinder 76 to switch to the vertical upright posture S2, and the side frame plate A is set between the front side positioning pin 71 in the lowered position and the back side positioning pin 73 in the raised position. Drop it in as shown by the phantom line in between. As a result, the side frame plate A stands upright on the support plate 69 with the bottom plate fitting groove Ad directed toward the bottom plate support base 50 at the standby position. At this time, the bottom plate fitting groove Ad of the side frame plate A is at the same level as the bottom plate B supported by the supporting surface 51 of the bottom plate supporting base 50.

On the other hand, as shown in FIG. 4, the bottom plates B are accommodated in the bottom plate accommodating part 5 in a stacked state, and as described above, the bottom plates B in the bottom plate accommodating part 5 are arranged one by one. 6
Is sent out onto the bottom plate supporting base 50 of the second conveying device 40 by the first conveying device 39 and the bottom plate transferring device 41, and as shown by the phantom lines in FIG. 5 solid line and FIG. Support surface 51
It is supported in a predetermined position above.

If the side frame plate A is dropped between the positioning pins 71 and 73 and is supported on the support plate 69 in a vertical standing posture as described above, the bottom plate support base that supports the bottom plate B as described above.
50 is driven by the drive chain 49, and the first assembly path 79 at the assembly position 3
Move inward. Immediately before the bottom plate support base 50 collides with the positioning pins 71, 73, the positioning pin 71 is raised by the cylinder 70 to a position above the movement path of the bottom plate support base 50 as shown by phantom lines in FIG. pin
Cylinder 72 lowers 73 below support plate 69.

By the first step, the bottom plate B in the horizontal posture moves closer to the side frame plate A in the vertical standing posture as shown in FIG. 12C. At this time, as shown in FIG. Since the bottom plate fitting groove Ad and the bottom plate B are at the same level, the front edge of the bottom plate B protruding forward from the supporting surface 51 of the bottom plate supporting base 50 is a side as shown by the phantom line in FIG. The frame plate A is automatically fitted in the bottom plate fitting groove Ad. At this time, one of the four side surface parts Ai to Al of the side frame plate A shown in FIG. 12 is located in the middle, that is, the bottom plate at the side surface part Aj between the folding grooves Aa and Ab of the side frame plate A. The support plate 69 is provided between the positioning pins 71 and 73 so that the front side edge of the bottom plate B fits into the fitting groove Ad.
The position of the side frame plate A supported above, that is, the stop position of the side frame plate A on the transverse feed belt conveyor 16 is set.

Following the first step, the second step is further performed as the bottom plate support 50 further moves forward along the first assembly path 79. That is, as shown by the phantom line in FIG. 8, one side surface portion Aj of the side frame plate A is pushed between the side frame plate bending guides 81A and 81B by the bottom plate B, and is inserted into the one side surface portion Aj of the side frame board A. Adjacent both side surface portions Aj, Ak are gradually bent toward the bottom plate B in the folding grooves Aa, Ab by the curved guide portion 81c of the side frame plate bending guides 81A, 81B, and the bottom plate 50 is bent by the side frame plate bending guide 81A. When passing between the terminal side parallel extension parts 81b of the 81B, both side surface parts Ai, Ak of the side frame plate A are bent at a right angle to the one side surface part Aj, and as shown in FIG. The left and right edges of the bottom plate B are fitted in the bottom plate fitting grooves Ad of the both side surface parts Ai, Ak. When the second step is performed,
Both side surface portions Ai, Ak of the side frame plate A are pressed onto the support plate 69 by the pair of left and right side frame plate floating prevention guides 91A, 91B, and the side frame plate A is prevented from floating.

When the bottom plate support 50 reaches the end of the first assembly path 79, that is, the start end position of the second assembly path 80, the side surface portion Ai of the side frame plate A is attached to the pusher 86 as shown by an imaginary line in FIG. The second step is completed when the side portion Aj of the side frame plate A is adjacent to the inside of the fixed receiving guide 82 while being adjacent to the inside of the pushing plate 100 in the above. Support
After the bottom plate suction function of the vacuum suction plate 52 of 50 is released, the bottom plate support base 50 is moved backward by the reverse drive of the drive chain 49, and the bottom plate support base 50 is escaped rearward from below the bottom plate B.

At the end of the second step, as shown by the phantom line in FIG. 8 and shown in FIG. 12D, only one side surface Al of the side frame plate A has a side surface Ak which is fitted to the bottom plate B. It is in the extended posture and extends along one side of the first assembly path 79. In this state, after the backward movement of the bottom plate support base 50 is completed, the push plate 100 of the pusher 86 is moved forward by the rodless cylinder 98, and the side frame plate A and the bottom plate B are pushed out to the second assembly path 80. Thus, the third step is started.

By this third step, while the side surface portion Al of the side frame plate A is bent toward the bottom plate B side by the side frame plate guiding vertical shaft roller 87, the side frame plate A and the bottom plate A as shown by phantom lines in FIG. B is pushed between the pair of left and right movable guides 83, 84 in the latter half of the second assembly path 80. At this time, the movable guides 83, 84 are in the retracted position slightly apart from the second assembly path 80 as shown in FIG.
The side frame plate A and the bottom plate B can smoothly enter between the four spaces.
Of course, a pair of left and right L-shaped receiving plates 102A, 102B of the box transfer means 9
Is in the closed position, and supports the side frame plate A entering between the movable guides 83 and 84 so as not to drop from the opening 105.

The side frame plate A and the bottom plate B are pushed and moved by the push plate 100 of the pusher 86 to the end of the second assembly path 80 until the side face Ak of the side frame plate A is pressed against the fixed stopper 85. The side surface portions Ai and Ak of the bottom plate B are sandwiched between the push plate 100 of the pusher 86 and the fixed stopper 85, and the side edges of the bottom plate B with respect to the bottom plate fitting grooves Ad of the both side surface portions Ai, Ak. Is pushed in sufficiently. In this state, the movable guide
The cylinder 92 is moved forward by the cylinder 92 toward the second assembly path 80, and the movable base 94 supporting the movable guide 84 is moved forward by the cylinder 93 toward the second assembly path 80.
At this time, since the movable guide 84 is in the inclined retracted position, the side surface Al of the side frame plate A is not pressed to the bottom plate B side by the forward movement of the movable base 94, and the side surface part Al only has its base portion as the bottom plate. It is in a state of being fitted to B at the bottom plate fitting groove Ad. After moving the movable base 94 to the forward limit position, the movable guide 84 is next switched by the cylinder 96 from the inclined retracted position to the parallel action position. As a result, as shown in phantom lines in FIG. 9 and shown in FIG. 12E, the side surface portion Aj and the side surface portion Al of the side frame plate A are sandwiched by both movable guides 83, 84, and both side surface portions Aj , Each side edge of the bottom plate B is sufficiently pushed into the bottom plate fitting groove Ad of Al, and at the same time, the side surface part
The side surface Al side joint portion Af is pressed against the joint portion Ae to which the adhesive Ah on the side Ai is applied so that they are joined to each other.

Box C shown in FIG. 12E is completed by the third step,
After this, as shown in FIG. 8, both movable guides 83, 84 are moved backward by the cylinders 92, 93, and the pusher 8
The push plate 100 of 6 is moved backward by the rodless cylinder 98, and the pair of left and right L-shaped receiving plates 102A and 102B of the box transfer means 9 supporting the box C is moved by the cylinder 104 to the tenth position.
The completed box C is dropped onto the belt conveyor 101 of the box carrying-out means 7 through the opening 105 by opening and opening the opening 105 as shown by a phantom line in the figure, and the box C is carried out by the belt conveyor 101. You can

As shown by the phantom lines in FIG. 11, the diagonal side frame portions D having a small width are formed at the four corners of the side frame of the box C, so that two portions are provided at each of the corners of the side frame plate A. When the row is formed with a folding groove, a triangular protrusion 100a for pressing the push plate 100 of the pusher 86 and the fixed stopper 85 against the narrow side frame D of the narrow width as shown in the drawing. It is possible to replace the one with 85a at both ends.

Further, depending on the use of the box C, gluing to the bottom plate fitting groove Ad can be omitted.

(Operation and Effect of the Invention) As described above, according to the bottom plate supply device for box assembly of the present invention,
The bottom plates that are stacked and stored in the bottom plate storage unit are sent out one by one from the lower end of the bottom plate storage unit and supported on the bottom plate support base, and the bottom plates are horizontally moved to the box assembly position by the forward movement of the bottom plate support base. The bottom plate supporting surface of the bottom plate supporting base supports only the periphery of the bottom plate, and the bottom plate supporting surface is supported by a vacuum suction plate disposed inside the bottom plate supporting surface. Since the bottom plate is held on the bottom plate support by sucking it toward the surface side, not only can the bottom plate be reliably fixed on the bottom plate support, but even if the bottom plate is bent and deformed, the side frame plate Since the peripheral edge of the bottom plate that has to be fitted with the groove for fitting the bottom plate can be automatically corrected so as to be located on the same horizontal plane as the bottom plate supporting surface, a rising step surface for positioning the rear edge of the bottom plate. Firmly push the bottom plate with It cooperation with a can be I, the fitting of the bottom plate three side edges against the bottom plate fitting groove of the side frame plate reliably smoothly to it as possible.

Further, according to the structure of the present invention, the bottom plate transfer means for supplying the bottom plate onto the bottom plate support comprises the bottom plate transfer device and the elevating drive means, and the bottom plate transfer device transfers the bottom plate sent out from the bottom plate storage part. A pair of right and left openable and closable receiving plates for receiving above the stand-by position of the bottom plate support, and a vertically movable vacuum suction plate for adsorbing the bottom plate received by the receiving plates,
The elevating and lowering drive means comprises a first height for adsorbing the bottom plate on the receiving plate and a second height for transferring the adsorbed bottom plate onto the bottom plate support base from the ascending standby position of the vertically movable vacuum suction plate. The bottom plate sent out from the bottom plate storage unit is once received on a pair of openable and closable receiving plates that are not equipped with a suction plate that hinders the smooth sliding of the bottom plate. Then, the bottom plate on the receiving plate can be taken over by a vacuum suction disk that can be raised and lowered, and the vacuum suction disk can lower the bottom plate to a predetermined position on the bottom plate support.

Therefore, the bottom plate support surface is provided only on the periphery, and the bottom plate can be reliably supplied to the predetermined position on the bottom plate support base having the vacuum suction plate inside thereof, and the bottom plate support surface can be fitted to the side frame plate in the next step. The result is that the combination can be performed reliably and satisfactorily.

Moreover, the bottom plate support need only be horizontally reciprocated,
Further, since it is not necessary to provide a special stopper mechanism for lowering the bottom plates one by one in the bottom plate storage portion, the entire equipment can be constructed at low cost.

[Brief description of drawings]

FIG. 1 is a schematic plan view of the whole box forming machine, FIG. 2 is a vertical cross-sectional side view showing a part of the side frame plate storage portion and side frame plate conveying means, and FIG.
FIG. 4 is a vertical sectional front view showing a part of the side frame plate conveying means and the first gluing device, FIG. 4 is a vertical sectional front view showing the bottom plate storing portion and the bottom plate conveying means, and FIG. 5 is a main part of the bottom plate conveying means. FIG. 6 is a vertical sectional side view, FIG. 6 is a cross-sectional plan view showing a terminal portion of the side frame plate conveying path and a part of the bottom plate conveying means, and FIG. 7 is a terminal portion of the side frame plate conveying path and a part of the bottom plate conveying means. Fig. 8 is a vertical side view showing Fig. 8, Fig. 8 is a plan view showing the assembling apparatus and the box transfer means, Fig. 9 is a plan view of the main part showing the final stage of the box assembling process, and Fig. 10 is the box transfer means and the box transfer means. FIG. 11 is a vertical side view showing the carry-out means, FIG. 11 is a plan view of a main part showing a modified example of the box assembling apparatus, and FIG. 12 is a perspective view illustrating each step of box assembling. 1 ... Side frame plate storage part, 2 ... Side frame plate transport means, 3 ... Assembly position, 4 ... Gluing means, 5 ... Bottom plate storage part, 6 ...
Bottom plate conveying means, 7 ... box carrying-out means, 8 ... box assembling device,
9: Box transfer means, 15: Vertical feed device for side frame plate transfer,
16 ... Belt conveyor for side frame plate transfer, 26 ... First gluing device, 27 ... Second gluing device, 39 ... First transfer device for bottom plate transfer, 40 ... Second transfer for bottom plate transfer Device, 41 ……
Bottom plate transfer device, 42 ... Bottom plate feed claws, 45A, 45B ... Belt conveyor for bottom plate transfer, 50 ... Bottom plate support, 50a ... Standing step for rear edge positioning of bottom plate, 52, 59 ... Vacuum Suction board, 53a, 53b …… Opening and closing receiving plate, 63 …… Side frame plate pusher, 64 …… Side frame plate induction positioning device, 69 …… Support plate, 71,73 …… Side frame plate positioning pin, 74 …… Side frame plate guide plate, 79 …… First assembly path of box assembly device, 80 ……
Same 2nd assembly route, 83,84 …… Movable guide, 85 …… Fixed stopper, 86 …… Pusher, 101 …… Box conveyor belt conveyor, A …… Side frame plate, Aa-Ac …… Folding groove, Ad …… Bottom plate fitting groove, Ae, Af …… Both end joints, Ag, Ah …… Adhesive,
Ai-Al ... Each side of the side frame plate, B ... Bottom plate, C ... Assembled box.

Claims (1)

[Scope of utility model registration request] 1. A bottom plate storage part for stacking and storing bottom plates,
Bottom plate conveying means for conveying the bottom plates one by one from the lower end of the bottom plate storing portion to the box assembly position, wherein the bottom plate conveying means comprises:
A bottom plate support base that horizontally supports the bottom plate and feeds the bottom plate to the box assembly position is provided, and the bottom plate support base has the front edge portion in the feed direction of the bottom plate and the left and right side edge portions jutting out. Bottom plate supply surface for supporting only the periphery of the bottom plate, a vacuum suction plate for sucking the bottom plate arranged inside the bottom plate support surface, and a rising step surface for positioning the rear side edge of the bottom plate. In the device, the bottom plate transfer means includes a bottom plate transfer device and an elevating / lowering drive means, and the bottom plate transfer device receives a bottom plate sent out from the bottom plate storage section above the standby position of the bottom plate support base, and a pair of left and right sides. And a vacuum suction plate capable of moving up and down for sucking the bottom plate received by the receiving plate. The lifting drive means moves the liftable vacuum suction plate from the rising standby position to the receiving position. The first height to adsorb the bottom plate on the plate,
A box assembly bottom plate supply device for lowering the adsorbed bottom plate to a second height at which the bottom plate is mounted on the bottom plate support.