JP5761845B2 - Resin corrugated board ruled line forming device - Google Patents

Description

  The present invention relates to a ruled line forming apparatus that can bend a resin corrugated board.

  For example, when manufacturing a container or the like formed by bending a resin corrugated board (plastic corrugated board) into a box shape, it is possible to fold by forming a ruled line at the bent portion of the resin corrugated board that has been cut into the required developed shape. ing. As an apparatus for forming a ruled line on a resin corrugated board, for example, as shown in Patent Document 1, a ruled line thermal processing machine equipped with a heated blade is used, and the heated blade is pressed to a predetermined portion of the resin corrugated board and the back plate A V-groove ruled line is formed by melting in a state where the film remains, and can be bent at the ruled line.

  However, in the ruled line thermal processing machine using the blades described above, the blades have to be elongated in order to form a ruled line of a certain length at a time, and there is a problem that the apparatus itself becomes large. doing. In addition, since the length of the blade is limited with respect to the ruled line to be formed, when forming a long ruled line, with the edge of the blade aligned with a part of the previously formed ruled line, again The ruled lines must be formed by pressing while positioning, and the ruled lines are likely to be discontinuous, and the alignment work is troublesome, and the ruled lines cannot be formed efficiently.

  The above problem is solved by using a heating roller instead of a blade and rolling it while pressing the heating roller against a predetermined part of the resin corrugated board to melt it while leaving the back plate to form ruled lines can do. When such a heating roller is used, when the heating roller is moved against the resin corrugated board, the heating roller itself rolls.

However, the rotation of the heating roller is delayed with respect to the movement of the heating roller, resulting in a rotational resistance, and this rotational resistance has a problem that the resin corrugated board at the periphery of the V groove is easily broken. In particular, the resin corrugated board is integrally formed so that a large number of ribs (eyes) extending between a front plate and a back plate in a certain direction to form a gap therebetween are extended at equal intervals. When a ruled line perpendicular to the eyes is formed on the corrugated board, breakage can be avoided even if a rotational resistance due to the pressing force of the ruled line roller acts on the ribs. When forming, the front plate or the back plate was easily broken by the rotational resistance due to the pressure contact force of the ruled line roller.

As a result, when a product is manufactured using a resin corrugated board in which the front or back plate of the ruled line portion is broken, the quality of the folded portion is deteriorated, resulting in a problem that the product becomes defective.

JP 2009-262943 A

  The problem to be solved is that when a ruled line is formed with a heated blade, the length of the blade is restricted, so that it tends to be discontinuous when forming a long ruled line, and labor is required for alignment. Therefore, the ruled line cannot be formed efficiently. In addition, when forming a ruled line using a heating roller, a rotation resistance is generated by the rotation of the heating roller being delayed with respect to the movement of the heating roller relative to the resin cardboard board, and the resin cardboard board at the periphery of the ruled line is caused by the rotation resistance. Is easy to break.

The present invention is, ruled lines formed for forming a ruled line comprising a crease in pressure contact with the resin cardboard plate borders rollers provided on the movable body is placed on the table to move the table manually two-dimensional directions to a numeric controllably In the apparatus, an attachment shaft of the ruled line roller is rotatably supported with respect to the movable body, and an electric motor capable of numerical control is connected to the attachment shaft, and the attachment shaft is driven as the electric motor is driven. The heating motor that heats the ruled line roller and the ruled line roller can be rotated at a rotational speed synchronized with the moving speed of the ruled line roller relative to the resin corrugated board. When, the most important, comprising the.

  The present invention can efficiently form a continuous ruled line even if it is a long ruled line. In addition, when forming a ruled line using a heating roller, the rotation of the heating roller is prevented from being delayed with respect to the movement of the heating roller relative to the resin cardboard plate, and the resin cardboard plate at the periphery of the ruled line is prevented from breaking. can do.

It is a schematic perspective view which shows the outline of a ruled line formation apparatus. It is explanatory drawing which decomposes | disassembles and shows a cutting | disconnection and a ruled line head. It is explanatory drawing which shows the cutting state of the resin corrugated board by a cutting member. It is explanatory drawing which shows the state at the time of changing the direction of a cutting blade. It is explanatory drawing which shows the ruled line formation state of the resin corrugated board by a ruled line roller. It is explanatory drawing which shows the state at the time of changing a ruled line roller.

The ruler roller heated by the heating member is pressed against the resin cardboard board while the movable body is moved in a two-dimensional direction with the numerically controllable electric motor driven to move the ruler roller in the direction of ruled line formation. It is the best embodiment to form a formation that extends in a desired direction by rolling .

The present invention will be described below with reference to the drawings showing examples.
As shown in FIGS. 1 and 2, a pair of guide rails 5 extending in the horizontal direction shown in the drawing are fixed to the side surface of the main body frame 3 in the ruled line forming device 1. The first traveling body 7 is supported so as to be movable in the left-right direction. Further, rack gears 6 extending in the left-right direction shown in the figure are provided on the side surfaces of the main body frame 3, and the rack gears 6 are provided on the output shaft of a first electric motor 9 capable of numerical control such as a servo motor. The gear 9a is meshed. The first traveling body 7 is reciprocated in the left-right direction as the first electric motor 9 is driven.

  A pair of guide rails 15 extending in parallel in the front-rear direction are fixed to the horizontal arm 13 extending in the front-rear direction shown in the upper first traveling body 7, and a movable body 17 is attached to the guide rail 15 in the front-rear direction. Is supported so as to be movable. The movable body 17 is connected to a numerically controllable second electric motor 19 such as a servo motor, and has a first feed screw 21 having an axial line in the front-rear direction and having a shaft end portion pivotally supported by the horizontal arm 13. Together, the movable body 17 is reciprocated in the front-rear direction by the first feed screw 21 that rotates as the second electric motor 19 is driven.

  The movable body 17 is provided on the main body frame 3 and is located above the mounting table 23 on which the resin corrugated board 20 is placed in a flat shape. The unit 22 is provided so as to be movable up and down. The resin corrugated board 20 has a structure in which a large number of ribs (eyes) extend in parallel at equal intervals between a front plate and a back plate to provide gaps therebetween. In this example, the resin corrugated board 20 is placed on the placement table 23 so that the eyes extend in the left-right direction as shown in the figure.

That is, a pair of guide rails 25 extending in parallel in the illustrated vertical direction are fixed to the front surface of the movable body 17. An elevating plate 27 as an elevating body is supported on the guide rail 25 so as to be movable in the vertical direction. The lift plate 27 is connected to a numerically controllable third electric motor 29 such as a servo motor, and is engaged with a second feed screw 31 having an axial line in the vertical direction, and the third electric motor 29 is driven. The lift plate 27 is moved up and down with a predetermined stroke by the second feed screw 31 that rotates.

The mounting table 23 is formed with a number of suction holes 23a connected to a negative pressure generator (not shown), and the resin corrugated board 20 placed on the table surface is sucked with negative pressure. Hold in a predetermined positioning state.

  A pair of guide rails 28 and 30 extending in the vertical direction and spaced in the front-rear direction are fixed to the elevating plate 27, and the first and second mounting plates are attached to the guide rails 28 and 30, respectively. 35 and 37 are supported to be movable up and down. The first and second mounting plates 35 and 37 are respectively mounted with first and second operating members 39 and 41 such as an air cylinder in which the tips of the operating rods 39a and 41a are fixed to the lower part of the lifting plate 27, respectively. The first and second mounting plates 35 and 37 are moved up and down with a predetermined stroke by the operation of the first and second operating members 39 and 41.

A mounting shaft 43 that has an axial line in the vertical direction and is prevented from coming off in the vertical direction is rotatably supported on the first mounting plate 35. An output shaft of a fourth electric motor 45 such as a numerically controllable servo motor fixed to the first mounting plate 35 is connected to the mounting shaft 43 via a gear 45 a and is mounted by driving the fourth electric motor 45. The shaft 43 is rotated at a predetermined angle.

A pair of shaft support plates 47 that hang down relative to each other at a predetermined interval are fixed to the lower end portion of the mounting shaft 43, and a hollow shaft having an axis line in the horizontal direction between the shaft support plates 47. The shaft end portions of 49 are rotatably supported. An output shaft of a fifth electric motor 51 such as a servo motor capable of numerical control is connected to an end of the hollow shaft 49 protruding from one shaft support plate 47 via a gear 51a.

A ruled line roller 53 is fixed to the hollow shaft 49 positioned between the pair of shaft support plates 47. The outer peripheral portion of the ruled line roller 53 is formed in a V-shaped cross section in the axial direction. Furthermore, an electric heating member (not shown) such as a shaft heater (seeds heater) is built in the hollow portion of the hollow shaft 49, and the ruled line roller 53 is heated to a temperature at which the resin corrugated board 20 can be melted.

The second mounting plate 37 is pivotally supported so that a cutting member 55 having an axial line in the vertical direction and provided with a cutting blade 55a at the lower portion is rotated. The second mounting plate 37 is supported by the cutting member 55. An output shaft of a sixth electric motor 57 such as a numerically controllable servo motor fixed to the shaft is connected via a gear 57a, and the cutting member 55 is rotated at a predetermined angle by driving the sixth electric motor 57. .

The cutting member 55 includes a cutting blade 55a, for example, an eccentric cam provided on an output shaft of an electric motor and an operating shaft supported so that the cutting blade 55a is attached to one shaft end and slides in the vertical direction. A forward vibration that is provided at the other shaft end and is constituted by a cam follower in which the eccentric cam is slidably contacted, and reciprocates the cutting blade 55a by reciprocating the operating shaft as the electric motor is driven to cut the resin corrugated board 20 It may be a cutting mechanism, an ultrasonic vibration cutting mechanism that cuts the resin corrugated board 20 while vibrating the cutting blade 55a with an ultrasonic vibration element.

Next, the cutting action and ruled line forming action of the resin corrugated board 20 by the ruled line forming apparatus 1 configured as described above will be described.
First, the cutting action of the resin corrugated board 20 will be described. The resin corrugated board 20 is placed on the placing table 21 of the main body frame 3 while being positioned and fixed and held by negative pressure suction from the suction holes 21a. At this time, the first and second traveling bodies are moved to the origin position with respect to the mounting table 21.

Based on the cutting start position data and cutting end position data set in advance in the above state, the first and second electric motors 9 and 17 are driven and controlled to move the movable body 17 to cut and cut in the ruled line unit 22. The blade 55 a is positioned above the cutting start position of the resin corrugated board 20.

In the above state, after the third electric motor 29 is driven and controlled to move the elevating plate 27 downward or at a synchronized timing, the second operating member 41 is operated to move the second mounting plate 37 downward to cut the cutting blade. After 55a is pierced into the resin corrugated board 20, for example, the second electric motor 17 is driven and controlled, and the movable body 17 is moved in the front-rear direction perpendicular to the eyes of the resin corrugated board 20 to cut the resin corrugated board 20. (See Figure 3)

After the cutting of the resin corrugated board 20 in the front-rear direction perpendicular to the eyes is completed, in order to cut the resin cardboard board 20 in the left-right direction that coincides with the eyes, first, the second actuating member 41 is moved backward, and the second mounting plate 37 is moved. After moving upward and releasing the piercing of the cutting blade 55a with respect to the resin corrugated board 20, the sixth electric motor 57 is driven to control the cutting member 55 so that the direction of the cutting blade 55a coincides with the eye as shown in the left-right direction. Turn to. (See Figure 4)

In the above state, the second operating member 41 is actuated again to move the second mounting plate 37 downward and pierce the cutting blade 55a into the resin corrugated board 20, and then drive the first electric motor 9 to control the mounting member. 23 is moved in the left-right direction coinciding with the eyes of the resin corrugated board 20 to cut the resin corrugated board 20.

By repeating the above operation, the resin corrugated board 20 is cut in the front-rear direction and the left-right direction to form a desired developed shape.

In order to cut the resin corrugated board 20 at a desired angle with respect to the front-rear direction, for example, the sixth electric motor 57 is driven according to the angle while the second mounting plate 37 is moved upward. After controlling and rotating the cutting member 55 in a direction in which the direction of the cutting blade 55a coincides with the angle, the second operating member 41 is operated to move the second mounting plate 37 downward to cut the cutting blade 55a. The first and second electric motors 9 and 17 are driven and controlled by the amount of rotation corresponding to the angle in a state where the resin corrugated board is pierced into the resin corrugated board 20, and the cutting blade 55a is moved in a direction corresponding to the angle and cut. .

Next, in order to form a V-groove ruled line that becomes a crease in the resin corrugated board 20 cut into a desired developed shape by the above operation, the ruled line start position data and the ruled line end position data set in advance as described above. Based on the above, the first and second electric motors 9 and 17 are driven and controlled to move the movable body 17, and the ruler roller 53 of the cutting and ruler unit 22 is positioned above the ruled line start position of the resin corrugated board 20.

In the above state, after the third electric motor 29 is driven and controlled to move the elevating plate 27 downward or at a synchronized timing, the first operating member 39 is operated to move the first mounting plate 35 downward, and the electric heating member The ruled line roller 53 heated to a required temperature is pressed against the resin corrugated board 20. At this time, the ruled line roller 53 is pressed against the resin corrugated board 20 with the back plate remaining.

In the above state, for example, the second electric motor 17 is driven and controlled to move the movable body 17 in the front-rear direction perpendicular to the eyes of the resin corrugated board 20 and the fourth electric motor 45 is synchronized with the driving of the second electric motor 17. The V-groove ruled line extending in the front-rear direction with the back plate remaining on the resin corrugated board 20 is driven and controlled with the amount of rotation that matches the amount of movement of the movable body 17 with respect to the front-rear direction. Form. (See Figure 5)

At this time, the ruled line roller 53 is rotated by an amount of rotation corresponding to the amount of movement in the front-rear direction to avoid the occurrence of movement resistance with respect to the resin cardboard plate 20, so that the resin cardboard plate 20 at the periphery of the ruled line is broken. To prevent.

After the formation of the ruled line in the front-rear direction with respect to the resin corrugated board 20 is completed, in order to form a further ruled line in the left-right direction that coincides with the eyes, first, the first operating member 39 is moved backward first. 35 is moved upward to release the pressure contact of the ruled line roller 53 against the resin corrugated board 20, and the fifth electric motor 51 is driven to rotate the ruled line roller 53 in the left-right direction shown in FIG. (See Figure 6)

In the above state, the first actuating member 39 is actuated again to move the first mounting plate 35 downward so that the ruled line roller 53 is pressed against the resin corrugated board 20, and then the first electric motor 9 is driven and controlled to move the movable body. 17 is moved in the left-right direction that coincides with the eyes of the resin corrugated board 20 and the fourth electric motor 45 is driven and controlled with a rotation amount that coincides with the movement amount of the mounting member 23 in the left-right direction. A V-groove ruled line extending in the left-right direction is formed with the plate remaining.

At this time, the ruled line roller 53 is rotated by an amount of rotation corresponding to the amount of movement in the front-rear direction in the same manner as described above, thereby avoiding the occurrence of movement resistance with respect to the resin cardboard plate 20, thereby causing the resin cardboard plate 20 at the periphery of the ruled line to Prevent breakage.

By repeating the above operation, desired ruled lines extending in the front-rear direction and the left-right direction are formed on the resin corrugated board 20. (See Figure 6)

For example, in order to form a ruled line that inclines at a desired angle with respect to the front-rear direction with respect to the resin corrugated board 20, the fifth electric motor 51 is moved in accordance with the angle with the first mounting plate 37 moved upward. Then, the direction of the ruled line roller 53 is rotated in the direction coinciding with the above angle, and then the first operating member 39 is actuated again to move the first mounting plate 35 downward to move the ruled line roller 53 to the resin. The first and second electric motors 9 and 17 are driven and controlled by the amount of rotation corresponding to the angle while being pressed against the corrugated board 20, and the ruled line 53 is moved in a direction that matches the angle to match the angle. Form ruled lines.

DESCRIPTION OF SYMBOLS 1 Ruled line formation apparatus 3 Main body frame 5 Guide rail 6 Rack gear 7 1st traveling body 9 1st electric motor 9a Gear 13 Horizontal arm 15 Guide rail 17 Movable body 19 2nd electric motor 20 Resin corrugated board 21 1st feed screw 22 Cutting and Ruled line unit 23 Placement table 23a Suction hole 25 Guide rail 27 Lift plate 28 as lift body Guide rail 29 Third electric motor 30 Guide rail 31 Second feed screw 33 Mounting plate 35 First mounting plate 37 Second mounting plate 39 First 1 actuating member 39a actuating rod 41 second actuating member 41a actuating rod 43 mounting shaft 45 fourth electric motor 45a gear 47 shaft support plate 49 hollow shaft 51 fifth electric motor 51a gear 53 ruled line roller 55 cutting member 55a cutting blade 57 sixth Electric motor 57a gear

Claims (7)

In border forming apparatus for forming a ruled line comprising in pressure contact with the resin cardboard plate borders rollers provided on the movable body is placed on the table to move the table to hand two-dimensional directions numerically controllably the fold,
An attachment shaft for the ruled line roller is pivotally supported with respect to the movable body, and an electric motor capable of numerical control is connected to the attachment shaft, and the attachment shaft is rotated as the electric motor is driven. The direction of rotation of the ruled line roller can be turned and
A heating member for heating the ruled line roller;
An electric motor that rotates the ruled line roller at a rotation speed synchronized with the moving speed of the ruled line roller with respect to the resin corrugated board;
Borders forming apparatus resin cardboard plate, characterized in that it comprises a. In claim 1,
The heating member is a ruled line forming device for a resin corrugated board that heats the ruled roller to a temperature at which the resin corrugated board can be melted . In claim 1,
A ruled line roller is a ruled line forming device for a resin corrugated board provided on an elevating body that moves up and down with respect to a movable body that moves in a two-dimensional direction above a table . In claim 3 ,
The ruled line roller is a ruled line forming device for a resin corrugated board provided on a mounting plate supported so as to be movable in the vertical direction with respect to the lifting body . In claim 1,
A resin corrugated board ruled line forming apparatus provided with a cutting member that pierces the resin corrugated board and moves in a two-dimensional direction integrally with the ruled line roller to cut . In claim 5,
A ruled line forming device for a resin corrugated board, wherein the ruled line roller and the cutting member are provided so as to be raised and lowered individually with respect to the resin corrugated board. In claim 5 ,
The cutting member is pivotally supported by a mounting plate that moves up and down separately from the ruled line roller with respect to the lifting body that moves up and down with respect to the movable body, and faces each axial direction by a rotating member that is connected. A ruled line forming device for a resin corrugated board that is rotated like this .

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