JP2001058362A - Apparatus for bending partition material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently bend partition materials having various dimensions by one kind of a jig. SOLUTION: A partition material contains a square or rectangular bottom part and the parallel walls and transverse walls integrally connected to two adjacent sides of the bottom part. A bending apparatus of the partition material is equipped with a frame 30 on which the partition material is temporarily placed horizontally, a means for moving the bottom part downward within the frame 30, a first guide means 36 having a contact member 50 erecting the transverse walls during the downward movement of the bottom part and a second guide means 54 having a contact member 80 erecting the parallel walls during the further downward movement of the bottom part to bring the lower sides of the transverse walls into engagement with the bottoms of the upward grooves of the parallel walls. The first guide means 36 is supported on the frame 30 so as to be freely movable in an X-direction and the second guide means 54 is supported on the frame 30 so as to be freely movable in a Y- direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bending device for bending a partition material for partitioning a cardboard box into at least four sections.

[0002]

2. Description of the Related Art Generally, partitions are used so that bottles or bottles arranged in a cardboard box do not come into contact during transportation. For this partition, two kinds of long and thin cardboard or corrugated paper having grooves formed at regular intervals about half the width are prepared, and the grooves of these cardboards are fitted to each other to form a grid-like wall. Therefore, at least two kinds of cardboard must be prepared, and it is difficult and expensive to automate the assembly.

For example, in US Pat. Nos. 3,339,580 and 4,157,156, gussets must be made so that the partitions can be folded to form each partition. Poor utilization of materials, especially when the number of compartments exceeds 6, makes it increasingly difficult to automatically introduce those partitions into cardboard boxes.

[0004]

Further, a partition member for forming a plurality of sections in a cardboard box and a folding device for automatically folding the partition member by stop rails 37, 38 and 39 are disclosed in JP-A-1-294428. Is disclosed. This folding device can only handle bottles of one diameter, so in order to handle bottles of different diameters on the same production line, the same number of stop rails or jigs with different positions are used. Equipment had to be provided.

Accordingly, the present invention has been made in view of the above problems,
An object of the present invention is to provide a folding device for a partition material capable of forming a partition material corresponding to a container having a substantially rectangular horizontal cross section seen in bottles of various types or a recent PET bottle with various types of bending devices.

[0006]

According to the present invention, a rectangular bottom having folds on two adjacent sides and a parallel wall and a transverse wall integrally connected to the bottom through the folds are provided. Fold the divider containing it and place it in the box for at least 4
In the bending device of the partition material forming one section,
A frame on which the partitioning material is temporarily placed horizontally, means for moving the bottom portion downward in the frame, and a contact portion for erecting the transverse wall during the downward movement of the bottom portion
A first guide means having a material and, during a further downward movement of the bottom, the parallel wall is erected to engage the lower edge of the transverse wall with the bottom of the upwardly directed groove of the parallel wall. Second guide means having a contact member, wherein the first guide means is supported by the frame by itself in the X direction.
The second guide means is supported by the frame so as to be movable in the Y direction.

[0007] The second guide means is further movably supported in the X direction in order to align the second guide means with the upward groove of the parallel wall. Therefore, the second guide means has a slit through which the transverse wall passes and which can press near both sides of the upward groove of the parallel wall.

[0008] The guide means includes a screw rod which is pivotally supported by the frame and has a predetermined pitch, and a nut member fixed to the contact member. Further, the contact member is
One end is an elongated curved plate fixed to the nut member or both ends are rollers supported by an extension of the nut member.

An operation handle, an electric motor or a pulse motor is fixed to one end of the screw bar, and the amount of movement of the guide means is detected by a scale of the handle, a rotary encoder or the number of pulse signals.

The partitioning material forms at least six sections in the box, and the rectangular bottom has folds on three adjacent sides, and the bottom has the parallel wall through these folds. And the two transverse walls are connected.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

In general, the partitioning material 10 is cut out from a sheet of, for example, corrugated cardboard, and is used, for example, to divide a cubic cardboard box (not shown) having an open top into at least four sections. Therefore, inside the cardboard box, glass containers such as wine bottles or plastic bottles are stored for each section.

In the embodiment shown in FIG.
The same partition member 10 is integrally formed at a position symmetrical to the line in the X direction via the relay paper 12. Each partition material 10
Is connected to the bottom portion 14 via a square bottom portion 14, two transverse walls 16 formed integrally with the bottom portion 14 via two vertical folds 15 orthogonal to the X direction, and a transverse fold 17 parallel to the X direction. And a parallel wall 18 integrally formed. Therefore, vertical fold 1
5 and the horizontal fold 17 form two adjacent sides.

The parallel wall 18 is formed with two grooves 19 which are aligned with the respective vertical folds 15 and face upward when standing upright, while each transverse wall 16 partially penetrates the parallel wall 18 when standing upright. A lower side 22 of the protruding portion 20 is formed. Therefore, first, the transverse wall 16 stands upright and the projection 20 is aligned with the extension of the groove 19, and then the parallel wall 18
Is erected, and the lower side 2 of the protrusion 20 of the transverse wall 16 is
2 is engaged with the bottom in a groove 19 facing upward of the parallel wall 18. The depth of each upward groove 19 is appropriately determined.

The two partition members 10 and the relay paper 12 are integrally formed for easy transportation and confirmation of the quantity. One of them is lifted by the suction means 24 at the time of use, that is, at the storage position, and one side corresponding to the remaining fold of the bottom 14 is cut by the rotary blade 26 while moving in the direction of the arrow X, for example. The material 10 and the partition material 10 with the relay paper 12 are separated.

Next, the partition member 10 with the relay paper 12 is
The guide sheet 28 is bent at 90 degrees at the remaining folds of the bottom portion 14, and the relay paper 12 is erected. Thereafter, the suction means 24 relatively moves so as to approach and is carried onto the frame 30. The suction unit 24 also serves as a unit for moving the bottom 14 of the partition member 10 in the Z direction, that is, downward, when located in the frame 30.

That is, the suction means 24 has a suction cup 32 attached to the tip of a pin ton rod of a hydraulic cylinder (not shown). Of course, the suction means 24 and the pressing means (hydraulic cylinder) may be provided separately.

FIG. 2 is a perspective view of a main part, that is, a frame 30 of the folding device according to the present invention. In the figure, the frame 30
Above is a partition member 10 (not shown) carried in the direction of arrow X.
Is temporarily placed horizontally. Below the frame 30, a cardboard box (not shown) carried in the direction of the arrow Y is placed with its upper part opened.

The frame 30 has a first guide means 36 supported on a vertical side wall 34 parallel to the Y direction so as to move in the X direction. This first guide means 36, as shown in FIG.
It includes two guide rods 38 protruding inward from the side wall 34. These guide rods 38 are respectively passed through holes of the nut member 40 and support the nut member 40 movably in the X direction. On the side wall 34, a screw rod 42 having a predetermined pitch, in this case, a pitch of 1 mm, is rotatably supported.

The screw rod 42 is screwed into a screw hole 44 of the nut member 40, and an operation handle 46 is fixed to one end of the screw rod 42. Therefore, the amount of movement of the guide means is detected by the scale of the handle 46 at a rate of 1 mm per rotation. A contact member 50 having a slit 48 through which the upright relay paper 12 can pass is fixed to each nut member 40. These contact members 50
Is an elongated curved plate having one end fixed to the nut member 40, or a roller having both ends pivotally supported by an extension of the nut member 40 as described later.

In another embodiment, an output shaft of an electric motor and a rotary encoder are connected to the threaded rod 42, and the number of pulses of the rotary encoder is counted to control the electric motor so that the amount of movement of the nut member 40 is controlled. May be electronically detected. Instead, a pulse motor is fixed to the screw rod 42, and the amount of movement of the guide means is detected by the number of pulse signals.

The frame 30 has a second guide means 54 supported on a vertical side wall 52 parallel to the X direction so as to be movable in the Y direction. As shown in FIG. 4, the second guide means 54 protrudes inward from the vicinity of both ends of the side wall 52, is disposed parallel to the side wall 34, and has the other end attached to a protruding member 56 from the side wall 34. Two guiding horizontal rods 58
including.

Each horizontal rod 58 is passed through a hole of a sliding member 60, and a beam member 62 is fixed between the sliding members 60. Therefore, the sliding member 60 and the beam member 62
It is movably supported in the Y direction. A screw rod 64 having a predetermined pitch, in this case, a pitch of 1 mm, is rotatably supported on the side wall 52.

The screw rod 64 is formed in the screw hole 6 of the beam member 62.
6 and thus the Y of the beam member and the sliding member 60
The amount of movement in the direction is the handle 68 at a rate of 1 mm per rotation.
It is detected by the scale of. In another embodiment, instead of the threaded rod 64, the threaded hole 66, and the handle 68, a horizontal slot formed in each side wall 34 and a bolt that is screwed into the sliding member 60 through each slot. May be provided. In this case, two types of standard partition members can be bent by fixing the sliding member 60 to the side wall 34 by tightening bolts at the ends of the elongated holes. A horizontal rod 58 between the sliding member 60 and the inner surface of the side wall 52 is also provided.
Then, a spacer having a predetermined length and an inverted U-shaped cross section is placed on the sliding member 60 and the sliding member 60 is fixed to the side wall 34 by tightening a bolt, whereby a variety of standard partition members can be bent. A screw rod 70 having a special pitch distribution is rotatably bridged between the sliding members 60, and a guide rod (not shown) is further provided below the screw rod 70.
Has been bridged.

The screw rod 70 has an operation handle 7 at one end.
2 is attached, and the way of cutting the screw is reversed around the substantially center. Also, corresponding to the four nut members 74 and 76, a forward pitch of 2 mm from the handle 72 side, 1 m
A thread groove having a forward pitch of m, a reverse pitch of 2 mm, and a reverse pitch of 1 mm is formed. Therefore, the operation handle 72
Is rotated one time in the clockwise direction, for example,
The two nut members 74 move in the X direction so that they are 2 mm apart from each other and the outer nut member 76 is 4 mm away.

A contact member 80 having a slit 78 through which the projecting portion 20 of the upright transverse wall 16 can pass is fixed to each nut member 74. Each of these contact members 80 is an elongated curved plate having one end fixed to the nut member 74, or a roller having both ends pivotally supported by an extension of the nut member 74 as described later.

On the other hand, the auxiliary nut member 76 supports auxiliary members 82 that can come into contact with the region of the parallel wall 18 outside the groove 19, but when these auxiliary members 82 strongly press the parallel wall 18 from the contact member 80. , May be omitted from the extension of the groove 19, and may be omitted together with the auxiliary member 82.

In another embodiment, screw rods 64, 70
The output shaft of the electric motor and the rotary encoder are connected to each other, and the number of pulses of the rotary encoder is counted to control the electric motor so that the movement amount of the contact member 80 in the Y direction can be electronically detected. Good. Also, the contact member 80
May be operated in synchronization with that of the contact member 50.

Instead, a pulse motor is fixed to the screw rods 64, 70, and the amount of movement of the contact member or the contact roller is detected by the number of pulse signals.

FIGS. 5 to 7 schematically show an operation procedure for forming the partitions 10 to 12 shown in FIG. In FIG. 5, the partition members 10, 10 on which the relay paper 12 has been erected after cutting are positioned at predetermined positions on the frame 30.

In FIG. 6, the rod 24 of the hydraulic cylinder
Pushes the bottom portion 14 of the partition member 10 downward, the relay paper 12 passes through the slit 48 of the contact member 50 in the first guide means 36, and the remaining portion of the contact member 50 is moved downward while the contact member 50 moves downward. Erect 16 upright. Thereafter, the parallel wall 18 contacts the uppermost surface of the contact member 80. Therefore, the uppermost position of the contact member 50 is set higher than that of the contact member 80.

In FIG. 7, the rod 24 of the hydraulic cylinder
Pushes the bottom 14 of the partitioning material 10 further down,
Approximately two rows of transverse walls 16 each pass through a slit 78 in the contact member 80 in the second guiding means 54, and the remainder of the contact member 80 erects the parallel wall 18 during further downward movement. Accordingly, the contact member 80 engages the lower side 22 of the transverse wall 16 with the bottom of the groove 19 facing upward of the parallel wall 18.

In this state, the relay paper 12 and the transverse wall 16 pass through the corresponding slits, and the parallel wall 18 and the bottom portion 14 pass through the space of the frame 30, so that the partition member 1 having 12 sections is formed.
0,10 is introduced into the lower cardboard box.

FIG. 8 is a perspective view showing a second embodiment of the device for folding a partition member according to the present invention. The difference from the first embodiment in the drawing is that, when the bottom portion 14 is pressed downward by the means 24, instead of the contact member 50 which comes into contact with each transverse wall 16 and causes each transverse wall to stand upright while causing friction. In addition, a roller 94 is used instead of the contact member 80 for erecting the parallel wall 18 when the bottom portion 14 is further moved downward by using a roller 92 such as a bearing.

As a result, in the first embodiment, the contact member must be replaced after being worn out after many years of use.
In the second embodiment, it is possible to provide a highly reliable bending device having a long service life without fear of damaging the partition member.

The maximum length of the transverse wall 16 in the Y direction is the bottom 1
4 is approximately twice the length in the Y direction.
Is approximately three times the length of the bottom 14 in the X direction.

[0037]

As described above, the bending device of the present invention can be applied to partition members having various dimensions. Further, a highly reliable bending device having a long life and no risk of damaging the partition member can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a partition member used in a bending device of the present invention.

FIG. 2 is a partial schematic perspective view of the bending device according to the first embodiment of the present invention.

FIG. 3 is a partially cutaway sectional view of the first guide means of FIG. 2;

FIG. 4 is a partially cutaway sectional view of the second guide means of FIG. 2;

FIG. 5 is a schematic perspective view for explaining the operation of the device according to the present invention.

FIG. 6 is a schematic perspective view for explaining the operation of the device according to the present invention.

FIG. 7 is a schematic perspective view for explaining the operation of the device according to the present invention.

FIG. 8 is a partial schematic perspective view of a bending device according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Partition material 12 Relay paper 14 Bottom 16 Crossing wall 18 Parallel wall 19 Groove 22 Lower side 36 First guide means 54 Second guide means 50 Contact member 80 Contact member

Claims (8)

[Claims] 1. A box including a rectangular bottom having folds on two adjacent sides and a parallel wall and a transverse wall integrally connected to the bottom through the folds to be folded into a box. In a folding device for a partition member that forms at least four sections by inserting, a frame on which the partition member is temporarily placed horizontally, a means for moving the bottom part downward in the frame, A first guiding means having a contact member for erecting the transverse wall during the downward movement of the second member, and a second guiding means having a contact member for erecting the parallel wall during the further downward movement of the bottom. Guide means, wherein the first guide means is supported by the frame movably in the X direction, and the second guide means is supported by the frame movably in the Y direction. Device for folding partition material. 2. The apparatus according to claim 1, wherein said second guide means is further movably supported in the X direction. 3. The guide means includes: a screw rod pivotally supported by the frame and having a predetermined pitch; and a nut member fixed to the contact member, one end of the contact member being connected to the nut member. The device according to claim 1, wherein the device is a fixed elongated curved plate. 4. The guide means comprises: a threaded rod pivotally supported by the frame and having a predetermined pitch; and a nut member fixed to the contact member. The device according to claim 1, wherein the device is a roller supported on the extension. 5. An apparatus according to claim 3, wherein an operation handle is fixed to one end of said screw rod, and a movement amount of said guide means is detected by a scale of a handle. 6. The apparatus according to claim 3, wherein a motor is fixed to one end of the screw rod, and a moving amount of the guide means is detected by a rotary encoder. 7. The apparatus according to claim 3, wherein a pulse motor is fixed to one end of the screw bar, and the amount of movement of the guide means is detected by the number of pulse signals. 8. The partitioning material forms at least six compartments in the box, and the rectangular bottom has folds on three adjacent sides, and the bottom has the folds formed through these folds. Apparatus according to claim 1, wherein the parallel wall and the two transverse walls are connected.