JPH06122403A - Automatic size changing device for corrugated fiberboard box packing machine - Google Patents

Abstract

PURPOSE:To make the position of a guide member perform an adjustment automatically adjustable, and change the size of a corrugated fiberboard box automatically by equipping a data memory device for the setting position of the guide member and a control means for a motor which is driven by the setting data. CONSTITUTION:A sheet feeding device 12 of a box packing machine 10 transfers a corrugated fiberboard sheet 16 one by one from a hopper 14 on a pair of transfer frames which are mutually approachable/separable by attachments 24, 24 being arranged on endless chains 18, 18. On the outside of the transfer frames, there are guide bodies 26, 26 which are approachable/separable to meet the dimension of the corrugated fiberboard sheet 16, and guide members 30, 30 the positions of which are adjustable, and they are integrally moved. After an adhesive is applied by a nozzle, the corrugated fiberboard sheet 16 is suction- held by an elevator 36 and lowered directly under an article feeding position, and is formed into a box body of which the top is open, by four folding guides, and is mounted on guide beds 50, 50. Respective adjusting members are operated by a pulse control by an encoder, and the data is stored.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corrugated cardboard box packaging machine for packaging an object to be packaged with a developed corrugated cardboard sheet, and when a plurality of types of products are used in combination, the size of each adjusting member of the machine is changed. The present invention relates to an automatic size change device that can be automatically performed.

[0002]

2. Description of the Related Art In a corrugated cardboard case which folds a developed corrugated cardboard sheet to pack a packaged object, when a plurality of types of products are used together, the dimensions of the case, the box-making style of the case, and the corrugated cardboard used. Depending on the type of sheet, it is necessary to adjust the position of the corrugated cardboard sheet and the guide member that guides the case that is made. In other words, if the dimensions of the case, the box-making style, etc. are changed when the order is changed, use an adjustment handle that can adjust the position of each guide member.
It was handled by manipulating it manually.

[0003]

With the diversification of consumer needs, a variety of products are manufactured and provided today, and it is possible to reduce the time required to switch the type of the packaging machine according to the type of the package. Therefore, there is a demand to minimize the downtime of the production line as much as possible. However, when there are more than ten guide members to be adjusted when changing the size, such as a corrugated cardboard case, according to the conventional handle adjustment method, each adjustment point is changed every time the product type is changed.
It is necessary to set the position of each guide member after trying whether or not the case can be made well, which not only requires a lot of time for adjustment, but also is extremely complicated and requires skill. It was

[0004]

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above-mentioned drawbacks inherent in the cartoning machine, and to automatically adjust each adjusting member and the like in the corrugated board cartoning machine. An object of the present invention is to provide an automatic size changing device that can adjust the position manually.

[0005]

In order to overcome the above-mentioned problems and achieve the intended purpose, the present invention takes out the sheets one by one from a sheet hopper loaded with developed corrugated cardboard sheets, In a corrugated board cartoning machine for cartoning the objects to be packaged according to the case-making method defined by folding the required flaps, various adjusting members whose positions can be adjusted when the product type is changed, and the positions of the adjusting members. A forward and reverse rotatable motor for adjustment,
Detection means for detecting the rotation amount and rotation direction of the motor, data input means for inputting data relating to the outer dimension of the case, and data relating to the setting position of the adjusting member based on the outer dimension of the case input by the data inputting means. Calculating means, a storage means for storing data on the setting position of the adjusting member calculated by the calculating means, the setting data stored in the storage means to drive the motor, and from the detecting means. The control device having a motor control means for receiving the input of the detection signal and performing the feedback control of the motor automatically adjusts the position of each of the adjusting members.

[0006]

The data relating to the outer dimension of the case is inputted by the data inputting means, the data relating to the set position of each adjusting member indexed from the outer dimension of the case is obtained by the calculating means, and the data is stored in the storing means. Based on the setting data stored in the storage means, the motor that drives each adjusting member is drive-controlled by the motor control means. Further, the detection signal from the detection means for detecting the rotation amount and the rotation direction of the motor is input to the control device, and the motor is feedback-controlled, whereby the position adjustment of each adjusting member is automatically performed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an automatic size changing device for a corrugated board cartoning machine according to the present invention will be described below with reference to the accompanying drawings with reference to preferred embodiments. For convenience of description, each member whose position is adjusted by changing the product type will be generically referred to as an “adjusting member”.

As shown in FIGS. 1 and 2, a sheet feeding device 12 provided in a boxing machine 10 is a pair for horizontally transporting a corrugated cardboard sheet 16 taken out from a sheet hopper 14 described later to an article feeding position. It is basically composed of endless chains 18, 18. That is, the pair of transfer frames 2 are separated from each other by a predetermined distance in the direction intersecting the sheet supply direction.
0 and 20 are arranged in parallel, and sprockets 22 and 22 (only one is shown) are rotatably supported at both longitudinal ends of each transfer frame 20. Then, the endless chains 18 are respectively wound between the sprockets 22 and 22 corresponding to the supply direction, and the endless chains 18 and 18 positioned in parallel with each other.
A plurality of attachments 24 at predetermined intervals in the traveling direction,
24 are arranged correspondingly. The sprockets 22, 2
The second motor 2 is rotationally driven by the first servomotor A via a speed reducer and a belt transmission system (neither is shown). Therefore, by rotating the servo motor A, the pair of endless chains 18, 18 travel in a predetermined direction, and the blank sheet 16 taken out to the sheet taking-out position described later is transferred by the attachments 24, 24. The transfer frames 20 and 20 are brought close to each other by screw shafts that are rotated by independent motors as driving sources.
It is constructed so that it can be separated and moved, and is adjusted to a position according to the length dimension of the corrugated board sheet 16 by this adjusting mechanism.

Outside the transfer frames 20 and 20,
Guide bodies 26, 26 that can approach and separate according to the length dimension of the corrugated board sheet 16 extend in parallel to the article supply position. The guide bodies 26, 26 are configured to be movable by an adjusting mechanism (not shown) including a screw shaft and the like, each of which has an independent motor as a drive source. The guide body 26 on the left side in FIG. With respect to the dimension from C ₁ (see FIG. 11) to the left edge of the seat extending to the left, the sheet is adjusted to a position capable of supporting and guiding the left edge of the seat. In addition, the right guide body is related to the size of the right edge portion of the sheet extending from the folding reference C ₁ to the right,
The position is adjusted so as to support and guide the edge.
As a result, the corrugated cardboard sheet 16 taken out from the sheet hopper 14 has its left and right edge portions supported by the pair of guide bodies 26, 26, and the attachments 24, 24
Stable transfer is performed by. The positions of the transfer frames 20 and 20 and the guide members 26 and 26 are adjusted by a screw shaft adjustment mechanism using one motor as a drive source so that the transfer frames 20 and 20 are moved and adjusted by the same amount in synchronization with the sheet transfer direction. It is configured as follows. And the corrugated cardboard sheet 16
According to the width dimension of, the center of the width dimension is adjusted so that it can be transferred to a position corresponding to the machine reference C ₂ shown in FIG.

The cartoning machine 10 includes a sheet feeding device 12
Upstream of the sheet feeding direction of the sheet feeding device 12
A sheet storage and take-out device is provided at the sheet take-out position for taking out the corrugated board sheets 16 one by one. This storage and take-out device is provided with a cylinder (not shown) as a sheet take-out means arranged vertically to the facing surface of the transfer frames 20, 20 on the upstream side in the sheet feeding direction, and is deployed while facing above the cylinder. A large number of corrugated cardboard sheets 1
6 and a sheet hopper 14 that is stacked and stored. A plurality of suction cups 28, 2 connected to a vacuum suction source (not shown) are connected to the tip of the pinton rod of the cylinder.
The corrugated cardboard sheets 16 in which 8 are arranged and stacked on the sheet hopper 14 are taken out one by one from the lower end thereof via the suction cups 28, 28 by the lifting and lowering of a pair of cylinders, and the guide body 26 in the sheet feeding device 12 is removed. , 26 at the sheet take-out position. Then, the corrugated cardboard sheet 16 is transferred to the downstream side along the guide bodies 26, 26 by the attachments 24, 24 arranged on the endless chains 18, 18 driven and driven by the first servomotor A. In addition, the sheet hopper 14 is provided with a
A pair of guide members 30, 30 whose positions can be adjusted according to the outer size of the seat 16 are provided.
Is designed to move integrally with the guide bodies 26, 26.

Here, for convenience of explanation, the sheet hopper 1
10 of the corrugated cardboard sheets 16 stacked and stored in FIG.
Side panel 16a, bottom panel 1
6b, side panel 16c, top panel 16d, and each flap extending in the width direction from each panel,
Side flaps 16e, 16f, 16g, 1 from left to right
6h. In addition, a flap extending from the top panel 16d in the longitudinal direction of the sheet is a glue allowance flap 1
6i. In the box-making mode of FIG. 13, the glue flap 16i extends in the longitudinal direction from the side panel 16a.

In the guide body 26 facing between the sheet take-out position and the article supply position in the sheet supply device 12,
A gluing nozzle (not shown) for applying an adhesive is correspondingly arranged on the gluing margin flap 16i formed at one longitudinal end of the corrugated board sheet 16. Then, the adhesive is applied to the glue margin flap 16i of the corrugated cardboard sheet 16 being transferred by the attachments 24, 24 through the nozzle. This glue nozzle is provided with the guide members 30, 3
Like 0, it is configured to move integrally with the guide bodies 26, 26. Regarding the disposition position of the gluing nozzle, it can be disposed at an appropriately selected position, such as being provided in the vicinity of the pressure bonding plate at the box-making position described later according to the box-making method and the like.

As shown in FIGS. 1 and 3, a lift device 32 is arranged below the article supply position, and the lift device 32 is vertically movable along guide rods 34, 34 arranged vertically. The lifting / lowering body 36 is provided, and the lifting / lowering body 36 is provided on the downstream side in the transfer direction of a transfer device 38 described later.
Book arms 40, 40 extend. A plurality of (two in the embodiment) suction cups 42 connected to a vacuum suction source (not shown) are arranged on the upper surface of each arm 40, and the lower surface of the corrugated cardboard sheet 16 horizontally fed to the article feeding position is suction-held. Is ready to go. Further, a screw shaft 44 made of a ball screw arranged in parallel with the rod 34 is screwed into the elevating body 36, and the elevating body 36 is connected to the screw shaft 44 via a power transmission mechanism 46 such as a belt-pulley. Second
It is driven by the servo motor B. That is, this second
By driving the servomotor B forward and backward, the elevating body 36 rises, and the corrugated cardboard sheet 16 horizontally supplied to the article supply position is sucked and held by the suction cups 42, 42 in the semi-box forming position (article supply position). (Just below the position).

Below the article supply position, four folding guides 48a, 48a, 48b, 48b are arranged so as to be located at respective corners of a virtual quadrangle in a plane,
Corrugated cardboard sheet 16 lowered by the lift device 32
Is the side panel 16a, by each guide 48a, 48b.
The side flaps 16e and 16g extending from 16c and the side flap 16f extending from the bottom panel 16b.
The state that it is folded and is formed into a box shape that opens upward
It is placed on the guide beds 50, 50 described later in the (semi-boxed state). That is, on the upstream side, the folding guides 48a, 48 facing each other in the direction intersecting the transfer direction of the transfer device 38 are provided.
a, the side flap 16 of the side panel 16a
As e and 16e are folded, the folding guides 48b and 48b facing each other on the downstream side fold the side flaps 16g and 16g of the side panel 16c. The side flaps 16f of the bottom panel 16b are folded by the guides 48a and 48b, but the folding of the side flaps 16f is released after passing through a guide 72 described later. Then, as shown in FIG. 1, the side flaps 16e and 16g are moved downstream by the guide 72 while the folded state is maintained.

The folding guides 48a, 48b are constructed so that they can be positioned and adjusted at positions corresponding to the side flaps 16e, 16g when the outer dimensions of the corrugated cardboard sheet 16 and the box-making style are changed when the product type is changed. . That is, the folding guides 48a, 48b and the folding guides 48a, 48b facing each other across the machine reference C ₂ shown in FIG. 11 have a case length L (a length in a direction intersecting the transfer direction of the transfer device 38). In accordance with the above, the relative movement is made to approach / separate. Further, the corresponding folding guide 48b is moved toward and away from the folding guide 48a according to the width W of the case (length in the direction along the transfer direction of the transfer device 38). The upstream folding guide 48a is fixed because the sheet folding reference side is provided. Each position adjustment is configured to be performed by a position adjusting mechanism 84 including a later-described forward / reverse rotatable adjustment motor M, a screw shaft 86, and the like.

In the boxing machine 10, when the cardboard sheet 16 is horizontally fed to the article feeding position by the sheet feeding device 12, the article 52 to be packaged is placed on the sheet 16 through the article feeding means (not shown). It is supplied to the required position. Therefore, a case (each side panel 16a, 16c and side flap 16 of the corrugated cardboard sheet 16) accommodating the article 52 to be packed is placed on the guide beds 50, 50.
e, with 16g folded in) will be placed.
For convenience of explanation, this case is indicated by reference numeral 54.

Below the article supply position of the corrugated cardboard sheet 16, a pair of guide beds 50, 50 spaced apart by a predetermined distance in the sheet supply direction of the sheet supply device 12.
However, the corrugated cardboard sheet 16 that extends parallel to the direction intersecting the sheet supply direction and descends together with the article to be packaged 52 via the lift device 32 is placed in the semi-box forming position of the beds 50, 50. . The case 54 is the transfer device 3
8 is to be transferred to the box making position on the downstream side along the guide beds 50, 50. Information bed 5
0 and 50 are configured to be relatively movable toward and away from each other by an adjusting mechanism including a motor and a screw shaft, and their positions are adjusted according to the length L of the case 54.

As shown in FIG. 3, the transfer device 38 includes a carriage 56 which is moved forward and backward along the guide beds 50, 50 between a semi-box making position and a box making position, and an upstream side of the cart 56. The first pusher 58 which is erected at the end and extends upward from between the guide beds 50, 50, and the downstream pusher 58 is provided at the downstream end of the carriage 56 so that the pusher 58 can be retracted between the beds 50, 50. And a second pusher 60.
Below the guide beds 50, 50, a pair of sprockets 62, 62 spaced apart by a predetermined distance in the transfer direction of the case 54 are provided.
, And a chain 64 wound between both sprockets 62, 62 is fixed to an appropriate position of the carriage 56. The sprocket 62 on one side is connected to the power transmission system 6
It is configured to be rotationally driven by the third servomotor C via 6.

The first pusher 58 abuts on the back surface (the surface on the upstream side in the transfer direction) of the case 54 placed on the guide beds 50, 50, and moves it forward as the carriage 56 moves forward. It functions to transfer to the box making position. In addition,
The first pusher 58 moves by a preset movement amount, and brings the back surface of the case 54 to a position where the adhesive margin flap 16i can be crimped by a crimping plate 68 (described later) arranged at the box making position. Is set. The second pusher 60 projects above the bed 50 when the trolley 56 moves forward, and pushes out the case 54, which has been transferred to the box making position in the previous cycle, from the packaging machine 10 toward the subsequent process. It works as expected. Then, when the trolley 56 moves backward, when the second pusher 60 comes into contact with the case 54 transferred to the box making position by the first pusher 58 in the cycle, the pusher 60 sinks below the bed 50, It does not prevent the trolley 56 from moving backward.

As shown in FIG. 1, gluing devices 70 and 70 for applying an adhesive to the side flaps 16e and 16g folded by the lowering of the lift device 12 are arranged on both sides of the transfer path of the case 54, as shown in FIG. ing. A guide panel 72 for holding the side flaps 16e, 16g folded by the lowering of the lift device 32 and a top panel 16d are being provided on both sides and above the transfer path while the case 54 is being transferred by the first pusher 58. A guide 74 for folding, a guide 75 for folding the side flap 16f extending from the bottom panel 16b, and the like are provided. These guides 72, 74, 75 are the folding guides 48a, 4 described above.
Similar to 8b, the position is adjusted when the product type is changed, and the corrugated paperboard sheet 16 is configured to be properly boxed.
For example, the guide 72 is vertically adjusted in accordance with the height H of the case 54 by a screw shaft having a motor as a drive source. Further, the guide 74 is provided on the support frame 7 as shown in FIG.
8, the frame 78 is integrally adjusted in position by adjusting the vertical position of the frame 78 according to the height H of the case. Further, the guides 72, 75 move integrally as the guide beds 50, 50 are relatively moved and adjusted according to the length L of the case 54. The gluing devices 70, 70 are also integrally adjusted in position as the guide beds 50, 50 move.

At the box-making position, side plates 76, 76 for crimping the side flaps 16f, 16h located on the sides of the case 54 are arranged opposite to each other.
6,76 are moved between a standby position and an operating position by a driving means such as a cylinder. A support frame 78 is disposed above the guide beds 50 in the box-making position, and the first pusher 5 is attached to the frame 78.
A stopper 80 that contacts the front surface (the surface on the downstream side in the transfer direction) of the case 54 transferred by 8 and positions the case 54 is disposed. Further, a plate 68 for pressing the glue flap 16i of the corrugated cardboard sheet 16 to the back surface of the case is provided on the opposite side of the support frame 78 from the position where the stopper 80 is provided, with the case 54 interposed therebetween. Furthermore, the support frame 78 is provided with plates 82, 82 for pressing the top surface and the upper side portion of the case 54. Plate 82,
The side plate 76, 82 has a crease on the side flaps 16h, 16h extending from the top panel 16d.
Assisting the reliable folding of the flaps 16h, 16h by means of 76, the glue margin flap 16i and the side flaps 16f, 1 glued by the plates 68, 76
When crimping 6h, it functions to hold the case 54 and perform reliable crimping. The stopper 80 and each plate 68, 82 arranged on the support frame 78 are
It is moved between a standby position and an operating position by driving means such as a cylinder. That is, the case 54 transferred to the box-making position has the side flaps 16f, 1 coated with the adhesive by the crimping means 68, 76, 82, 80.
Along with 6h, the case 54 is held from the outside so that good box molding can be performed.

The crimping means 68, 76, 82, 80 are
When the outer size of the case or the box-making style is changed when the type of product is changed, the position of the case is adjusted by an appropriate position adjusting means so that good box-making can be achieved. That is, the side plates 76, 76 are integrally moved and adjusted in accordance with the position setting of the guide beds 50, 50. Further, the stopper 80 is moved and adjusted in the case transfer direction according to the case width W by a mechanism including a motor and a screw shaft. Further, the plates 82, 82 are moved and adjusted in a direction intersecting the case transfer direction according to the case length L by a mechanism including a motor and a screw shaft. In addition, the stopper 80,
The support frame 78 on which the plates 82, 82 and the crimping plate 68 are arranged is configured to move up and down by rotating a screw shaft extending upward from the guide beds 50, 50 by a motor (neither is shown). And case 54
The position is adjusted according to the height H of the.

In the above-mentioned boxing machine 10, when the product type is changed, the guide body 26, the guide member 30, the folding guides 48a, 48b, which are required to be adjusted in position by changing the outer dimensions of the corrugated cardboard sheet 16 and the box-making method, Plate 6
The adjusting members 8 and the like are positionally adjusted through the position adjusting mechanism 84. In this embodiment, as the position adjusting mechanism 84, a mechanism including a combination of a screw shaft 86 and a forward / reverse rotatable adjust motor M is used. Therefore, as an example, the folding mechanism disposed below the article supply position is used. A specific configuration of the position adjusting mechanism 84 for adjusting the positions of the guides 48a and 48b in the case transfer direction will be described below. The folding guide 48a,
48b are arranged opposite to each other on both sides of the lift device 32, but since the configurations are the same, only one will be illustrated and described.

As shown in FIG. 4, the guide bed 50 has columns 8 spaced apart by a predetermined distance in the transfer direction of the case 54.
9, 89 are erected, and a screw shaft 86 is rotatably installed between both columns 89, 89. A pair of guide rails 90, 90 are arranged in parallel with the screw shaft 86 interposed therebetween, and function to fold the side flaps 16e and 16f on the upstream side in the case transfer direction at the required positions of the guide rails 90, 90. The support 91 having the folding guides 48a is immovably fixed. Also guide rail 9
The side flaps 16g and the side flaps 16g on the downstream side are positioned at positions 0 and 90 facing the downstream side of the support 91.
A support 91 having a folding guide 48b that functions to fold f is slidably arranged, and this support 9
A screw shaft 86 is screwed into the shaft 1. Two sprockets 92, 93 are arranged at a predetermined interval at one end of the screw shaft 86, and an inner sprocket 92 and a sprocket 95 of a forward / reverse rotatable adjust motor M arranged on a support 89 via a bracket 94. An endless chain 96 is wound between and. That is, by driving the adjusting motor M in the forward and reverse directions to rotate the screw shaft 86, one of the support members 9
1 moves along the guide rails 90, 90, and the folding guide 48b is adjusted to a position capable of guiding the side flaps 16g, 16f by folding.

Further, the endless chain 100 is wound between the outer sprocket 93 provided on the screw shaft 86 and the sprocket 99 of the encoder EN provided on the support 89 via the bracket 97 to rotate the adjust motor M. The rotation speed and the rotation direction are detected by the pulse transmitted from the encoder EN by the encoder EN, and the rotation speed and the rotation direction are fed back to the control device 101 described later, so that the rotation of the adjustment motor M is controlled and the folding guide 48b. Position control is performed. Further, a stopper 102 is disposed on the guide rails 90, 90 at a position farthest from the folding reference C ₁ in FIG. 11, and a support body 91 moved by the adjusting motor M abuts on the guide rail 90 to prevent the movement thereof. It regulates the movement area. Then, the position where the support body 91 abuts on the stopper 102 is input and stored as the origin position in the control device 101, and the adjustment value (movement amount) of the folding guide 48b is set with reference to the origin position. It should be noted that the determination of the origin position is performed by the support 91 when the adjuster motor M is rotationally driven when the support 91 moves in the arrangement direction of the stopper 102.
By abutting on 02, when there is no pulse change from the encoder EN within a predetermined time, it is determined as the origin position. Also, in the other adjusting members, the origin position is the corresponding folding reference C shown in FIG.
Is set to the most spaced apart position from the _first and the machine reference _{C 2, C 3, C 4} .

As shown in FIGS. 5 and 6, the encoder EN in this embodiment is arranged so that the rotation of the slit plate 103 directly or indirectly connected to the screw shaft 86 is offset in the circumferential direction. Phase A photomicro sensor 1
04 and the B-phase photomicrosensor 105 are used. The slit plate 103 is formed with two concave portions 103a, 103a in the circumferential direction. As shown in FIG. 7, both rising and falling of each sensor 104, 105 are counted, and one rotation of the slit plate 103 is performed. It is set to count 8 pulses. Also A
The rotation direction of the adjust motor M is determined by the state of the partner phase at the time of counting each pulse of the phase photomicrosensor 104 and the B phase photomicrosensor 105. The encoder EN is not limited to the method of the embodiment, and other methods can be adopted as appropriate. Also,
The origin position setting does not have to be the position determination by stopping the stopper 102, and can be set by the number of pulses transmitted from the encoder EN.

When setting the origin position and adjusting the position to be described later, the adjusting member is set so that a plurality of members that do not interfere with each other in contact with each other are grouped and that simultaneous position adjustment is performed for each group. For example, in FIG.
For each adjusting member shown in FIG. 2, as shown in FIG. 18, a plurality of members that do not interfere with each other in contact are divided into four groups of 0 to 3, group 0, group 1, group 2,
The origin position is set or adjusted in the order of group 3. As a result, contact interference of the adjusting member can be prevented, and position adjustment can be performed in a short time.

FIG. 8 is a block diagram schematically showing a control device 101 for automatic size change of the packaging machine according to the present embodiment, which is a calculation means 106 for functionally calculating input data, and Motor control means 107 for controlling the position adjusting adjust motors M ₁ , M _2, ...
And a storage unit 108 for storing control data.
The operation panel provided in the packaging machine 10 has a data input means 109 such as a keyboard for inputting various data, and the input data from the data input means 109 is stored in the storage means 10.
8 is stored. As the input data, the packaged object 5
Various data such as the two types, the outer dimensions of the case 54, and the box making style are input. The operation panel may be provided with a data input unit 109 such as a touch panel, and various data may be input by operating a key called on the display screen of the unit 109 by selecting an operation menu.

In the adjust motors M ₁ , M _2, ... The pulse signals relating to the rotation amounts and the rotation directions of the encoders EN ₁ , EN _2, ... The rotation is controlled by feedback so that the adjustment member is adjusted to a pre-calculated position by the rotation.

By the data inputting means 109, the case boxing style (see FIGS. 9 and 13) and the type of corrugated board sheet (A flute, B flute, AB flute) are produced for each product type.
By inputting the numerical value of the data corresponding to the above and the outside dimensions (length (L), height (H), width (W)) of the case, the arithmetic means 106 causes the preset arithmetic expression ( Adjustment value of each adjustment member necessary for product size change
(Amount of movement from the origin position) is calculated. Further, the movement of each adjusting member is performed by the adjusting motors M ₁ , M ₂ , ... And the driving of the motors M ₁ , M _2, ... Is performed by the encoders EN ₁ , E.
The adjustment value of each adjusting member obtained by the calculation is stored in the storage means 108 according to the number of control pulses because of the method of controlling by the pulse of N ₂ .

At a required portion of the display means 110 such as a CRT connected to the control device 101, the length L, the height H, and the width W of the case dimensions input by the data input means 109 together with the case drawing are shown. It is displayed for each set dimension. The case diagram display is preferably displayed as a case diagram corresponding to the box-making style by selecting and inputting the box-making style of the case 54 (see FIGS. 9 and 13).

Here, as the adjustment value of each adjusting member, the distance from the origin in each adjusting member is obtained by the following arithmetic expression, and the value is the number of pulses for controlling the rotation of the motor M, and the storage means 108. It will be remembered in. ADJ-SET (n) ＝ ｜ ADJ-OFS (n)-(aW + bL + cH + dG-e) | n = 0 to 19 ADJ-SET (n): Distance from the origin of adjusting member n ADJ- OFS (n): Distance from origin position of adjusting member n to machine reference G: Length of pre-registered glue flap 16i (FIG. 10,
(See FIG. 14) W, L, H: Width, length, and height of the outer dimensions of the case input by the data input means a, b, c, d: Constants registered and stored in advance for each adjusting member e: A constant for calculating the sheet development dimension from the entered case outer dimensions, taking into consideration the thickness of the corrugated board sheet and the case packaging format (direct numerical input, or the case packaging format, sheet type (By selection input)

In the embodiment, in the case where the case 54 is made in a box-like manner in which the glue flap 16i is attached to the upper surface of the side panel 16a as shown in FIG. Numerical values shown in FIG. 12 are substituted into the constants a, b, c, d, and e in FIG. Also,
In the box-making style of the case 54, as shown in FIG. 13, the glue flap 16i is attached to the inner surface of the top flap 16d, and the constants a, b, c, d of the arithmetic expressions are set for each adjusting member. , e, the numerical values shown in FIG. 16 are respectively substituted and calculated.

[0034]

Operation of the Embodiment Next, the operation of the automatic size changing device in the corrugated board cartoning machine according to the embodiment thus constructed will be described with reference to the operation flow shown in FIG.

The data input means 109 of the operation panel is operated to select the adjustment position setting menu, and the data necessary for adjusting the position of the adjustment member such as the product type number and type name, the outer dimensions of the case, and the box making style are displayed. The data is input and these data are stored in the storage unit 108. For example, the constants a, b, c, d, G of the arithmetic expression in the adjusting member are as shown in FIG. 9 in the case of the box-making style in which the glue flap 16i of the corrugated board sheet 16 is attached to the upper surface of the side panel 16a. 12, the values shown in FIG. 16 are input in the box making mode in which the values shown in FIG. 12 are input by the input means 109 and the glue flap 16i is attached to the inner surface of the top panel 16d shown in FIG. . Further, the value of the distance from the origin position of each adjusting member to the folding reference or the machine reference (ADJ-OFS (n) in the arithmetic expression) is input by the input means 109 and stored in the storage means 108.

For those with different box making styles,
Generally, it is necessary to change various components of the packaging machine, so when using after delivery by the user,
Due to the production line down time, etc., product types can be changed with the same box-making method. Therefore, the data input means 1
The constant input in 09 is input in advance for the box-making specifications requested by the user before shipment from the manufacturer. Data input regarding the distances from the origin position of each adjusting member to the folding reference C ₁ and the machine reference C ₂ , C ₃ , C ₄ is also performed before the shipment from the manufacturer and stored in the storage means 108. This allows the user to change the product type only by inputting the outside dimensions of the case.

In the next step, when the origin position is not set or when the origin set flag is incomplete such as when data is cleared, the set operation switch in the input means 109 is operated to set the origin of each adjusting member. When the set operation is started and the adjusting motors M ₁ , M _2, ... Of the adjusting members rotate in a predetermined direction, the adjusting members move toward the origin position provided in advance. At this time, each adjusting member is moved for each of a plurality of groups that do not interfere with each other. Then, when the adjusting member reaches the origin position, the corresponding encoders EN ₁ , EN _2, ...
The origin signal for the pulse transmitted from the storage means 10
8 is stored.

Here, if the origin return operation has already been completed, the origin position signal is stored in the storage means 108, and the origin set flag has been completed, the routine proceeds to the next step.

The origin setting by this adjusting origin returning operation is also performed before the shipment from the manufacturer and stored in the storage means 108, like the data setting. Further, during this home-return operation, the adjustment members are simultaneously moved and adjusted for each of a plurality of groups that do not interfere with each other.

Input means 109 by clearing all data
When the case outside dimension or calculation constant is newly input by, or when the case outside dimension or calculation constant is changed and the calculation set flag is incomplete, the input data is substituted into the calculation formula. Then, the set position (adjustment registration position) from the origin of each adjusting member is calculated, and the value is stored in the storage means 108 as the number of adjusting motor control pulses from the origin position.

The current position from the origin of each adjusting member is recognized by the number of pulses from the encoder EN, and
After the adjustment direction is determined according to the difference in the number of pulses from the calculated adjusted registration position, the adjustment motors M ₁ , M _2, ... Are driven and controlled so that the adjustment member moves toward the registered position. The position of the adjusting member is adjusted. Further, in the adjusting position adjusting operation, similarly to the origin returning operation, the adjusting members are simultaneously moved and adjusted for each of a plurality of groups which do not interfere with each other, and the position is adjusted in a short time. As a result, the automatic position setting of each adjusting member is completed, and the boxing machine is ready for operation.

When it is considered that there is a problem in the set position of each adjuster member by automatic calculation during test operation after operation preparation, during continuous operation, or after interruption of continuous operation, the operator corrects the position by teaching. . That is, the adjustment position correction menu is selected by the data input means 109 to select an adjustment member that requires position correction, and the position correction key for the moving direction of the adjustment member is operated to rotate the corresponding adjustment motor M forward and backward. Then, each adjusting member is set to a desired position. And this corrected position (distance from the origin)
Is displayed as the current position on the display means 110, and the position becomes a registered position by the “OK” key provided on the input means 109, and is stored as the number of adjusting motor control pulses from the origin position. As a result, when the same product type is selected next time, each adjusting member is automatically positioned and adjusted to the corrected new registered position.

If the setting position of each adjusting member is already stored in the storage means 108, only the type selection operation by the input means 109 at the time of data setting,
The adjusting position of each adjusting member is automatically set, and the loss time required for order change can be extremely shortened. Moreover, since the position of each adjusting member is adjusted for each group, it is possible to adjust the positions of all adjusting members reliably and in a short time without the adjusting members interfering with each other, and prevent the production capacity from decreasing. You can

In the embodiment, with regard to the case-making form and the type of the corrugated board sheet, the constant input for the calculation is performed according to them, but as another method, the case-making form and the sheet type By selecting and inputting by the type setting by the input unit 109, the determining unit 111 automatically substitutes the constant for performing the calculation according to the selection result, thereby calculating the adjustment value of each adjusting member. May be set to perform. Further, in the embodiment, after the article to be packaged is taken out from the sheet hopper in the unfolded state and transferred by the sheet feeding device, the object to be packaged is held by the lifting device and is then semi-manufactured when lowered. Although a boxing machine having a box structure has been described as an example, the present application is not limited to this. For example, when the unfolded cardboard sheet is taken out from the sheet hopper, the sheet is partially formed, and it can be suitably used in a cardboard box packaging machine or the like configured to supply the article to be packaged onto the semi-boxed sheet. .

[0045]

As described above, according to the automatic size changing device in the corrugated board box packaging machine according to the present invention, the adjusters provided in the sheet supply section and the box making section can be simply provided by inputting the outer dimensions of the case. Since the positioning of members and the like is automatically adjusted by the calculated value, the combined switching time can be several tens of seconds, and the line stop time due to it can be minimized. In addition, since the adjustment values of each adjusting member etc. that have been set once are stored for each product type, when packaging different product types, automatic size change is performed only by selecting the product type, and the adjustment handle etc. is manually operated. As compared to the case of operating, there is no variation in adjustment size, and anyone who is unfamiliar can easily perform switching setting.

When each adjusting member or the like is moved for position adjustment, it is set so as to be simultaneously moved and adjusted for each of a plurality of groups, so that contact interference of each adjusting member can be prevented during adjustment. At the same time, it is not necessary to consider the setting order. Further, since the outer dimensions of the case and the box-making style are displayed on the display means, it is possible to perform an operation visually recognized by the operator, and it is possible to prevent a setting error due to an input error or the like.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a cartoning machine according to an embodiment.

FIG. 2 is a schematic plan view of a boxing machine.

FIG. 3 is a schematic vertical cross-sectional side view of a lift device and a transfer device in the boxing machine.

FIG. 4 is a schematic view showing a position adjusting mechanism of an adjusting member.

FIG. 5 is a schematic front view of an encoder.

FIG. 6 is a schematic side view of an encoder.

FIG. 7 is a detection chart of a photo micro sensor in the encoder.

FIG. 8 is a control block diagram of the cartoning machine according to the embodiment.

FIG. 9 is an explanatory diagram showing an appearance of a case.

FIG. 10 is an explanatory diagram showing a developed state of the case shown in FIG.

FIG. 11 is a diagram showing a case of making a case of the style shown in FIG.
It is explanatory drawing which shows the relationship between each adjustment member, a folding reference | standard, and a machine reference | standard.

FIG. 12 is a diagram showing a case of making a case of the style shown in FIG.
It is explanatory drawing which shows the arithmetic expression in each adjustment member.

FIG. 13 is an explanatory diagram showing the appearance of a case different from the style shown in FIG.

FIG. 14 is an explanatory diagram showing a developed state of the case shown in FIG.

FIG. 15 is an explanatory diagram showing the relationship between each adjusting member and the folding reference and the machine reference when the case of the style shown in FIG. 13 is manufactured.

16 is an explanatory diagram showing an arithmetic expression in each adjusting member when the case of the style shown in FIG. 13 is manufactured.

FIG. 17 is an operation flowchart of position adjustment of the adjusting member.

FIG. 18 is an explanatory diagram showing an operation sequence for each group when setting and adjusting the origin position of the adjusting member.

[Explanation of symbols]

 14 Sheet Hopper 16 Corrugated Cardboard Sheet 52 Packaged Item 54 Case 101 Control Unit 106 Computing Unit 108 Storage Unit 109 Data Input Unit 110 Display Unit 111 Judgment Unit M Adjust Motor EN Encoder

Claims (7)

[Claims] 1. A box wrapping object to be packaged according to a prescribed case-making method by taking out the sheets one by one from a sheet hopper on which the developed corrugated cardboard sheets are stacked and bending and forming the required flaps of the sheets. In a corrugated cardboard box packaging machine, various adjusting members whose positions can be adjusted when the product type is changed, a forward / reverse rotatable motor that adjusts the position of the adjusting members, and a detection that detects the amount and direction of rotation of the motor Means, data input means for inputting data on the outer dimension of the case, computing means for computing data on the set position of the adjusting member from the outer dimension of the case input by the data input means, and the computing means. Storage means for storing data on the calculated setting position of the adjusting member; and a storage means stored in the storage means. The position of each of the adjusting members is automatically adjusted by a control device that drives the motor based on the data and includes a motor control unit that receives a detection signal from the detection unit and performs feedback control of the motor. Automatic size change device for corrugated cardboard box packaging machines. 2. The automatic size changing device in a corrugated board box packaging machine according to claim 1, wherein the storage means stores data relating to the setting position of the adjusting member as setting data for each product type set by the input means. 3. When setting the origin position that serves as a reference for adjusting the position of each adjusting member, and when setting the position of each adjusting member based on the data stored in the storage means, each adjusting member is grouped by a plurality of groups. The automatic size changing device in the corrugated board cartoning machine according to claim 1 or 2, which is controlled to move simultaneously. 4. A determination means for selecting a constant for the arithmetic expression by inputting the box-making style of the case or the type of corrugated board sheet by the input means. An automatic size change device for the corrugated board cartoning machine described in 3. 5. When the setting position of each adjusting member is automatically set by the calculated value and then the position of the adjusting member is corrected, the corrected position can be stored in the storage means as setting data. Claims 1, 2,
An automatic size changing device in the cardboard box packaging machine according to 3 or 4. 6. A display means is connected to the control device,
The display means during operation of the machine displays the height, length and width of the case inputted by the data input means together with the case drawing. Automatic size changing device for the cardboard box packaging machine described. 7. The box diagram according to the box-making style is displayed on the display means when the box-making style of the case is selected by the data input means.
Automatic size changing device for the cardboard box packaging machine described.