JP2747576B2 - Drive in box packing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving device for a boxing machine such as a corrugated cardboard caser for packaging an object to be packaged with a blank sheet such as a corrugated cardboard sheet.

[0002]

2. Description of the Related Art A boxing machine such as a wrap-around type or a set-up type corrugated cardboard caser is known which supplies an object to be packaged to a blank sheet such as a corrugated cardboard sheet and inserts each flap of the sheet into a box. . Examples of this box packing machine include Japanese Utility Model Publication No. 52-35257 and
As disclosed in Japanese Patent Application Publication No. -99831, a take-out device that takes out sheets one by one from a group of stacked cardboard sheets, a transfer device that transfers the taken-out cardboard sheets, and the like are provided. Each flap of the sheet is folded to form a box. In addition, each of these devices uses a single main motor as a common drive source, and branches power from a cam (constant speed rotation) driven by this motor to each device via a crank mechanism, a link mechanism, and the like. Drive each device in relation (variable speed operation)
It is made to let.

[0003]

In the above-described conventional box packing machine, since each device is driven by a mechanical transmission system using one main motor as a common drive source, the timing of each device is different. In order to change the setting such as setting, operation speed or operation amount, it is necessary to change the shape of the drive cam and the length of the crank in each mechanical transmission system, etc., which is extremely complicated and time-consuming work. Had become a disadvantage. For example, in order to perform efficient and good packaging when the properties of the packaged item (such as the stability of the package) change or when the supply method of the packaged item is changed, it is necessary to determine the operation timing of each device. It is preferable to change the operation speed according to the above-mentioned properties and the supply system. However, since this change operation is extremely complicated and time-consuming, the current situation has been to cope with such a problem by changing the setting of the packaging capacity per unit time. However, in this case, it is pointed out that efficient packaging corresponding to various types of articles to be packaged is not performed, and the packaging ability is reduced. In addition, it has disadvantages such as complicated structure due to mechanical branch transmission of power, difficulty in maintenance and inspection and repair, and incompatibility with demands for high-speed operation.

[0004]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned drawbacks inherent in a boxing machine, and has been proposed to solve the problem suitably. It is an object of the present invention to provide a driving device which can easily cope with the above and can operate each device in an arbitrary operation pattern.

[0005]

Overcomes the aforementioned problems SUMMARY OF THE INVENTION The present invention for achieving the intended purpose, the second of which is provided below the position of the sheet facing the first position location by the lift device < br /> formed to the required stage during the transfer to the location, then packing packaged objects to be packaged to form the final box-shaped during the transfer to the third position location by the transfer device the formed sheet A first servomotor that drives the lift device, a second servomotor that drives the transfer device,
In order to operate the lift device and the transfer device in a predetermined operation pattern, the number of rotations of the packaging , the rising stop position as the first position in one cycle operation of the lift device, and the front.
The descent stop position as the second position and the data value for setting the period, the forward position as the third position in one cycle operation of the transfer device and the second position
And it has a data input means to enter data values for setting the retracted position and the period of the input hand stage
Similar to the calculator for calculating a timing table for controlling the amount of rotation of the first and second servo motor seeking data for operating the lifting device and the transfer device in a predetermined operating pattern based on the input set data, computation Storage means for storing the respective timing tables of the lift device and the transfer device, and control means for synchronously controlling the position and speed of the first servomotor and the second servomotor based on the timing tables stored in the storage means. And characterized in that:

[0006]

Various data necessary for the operation of the first transfer means and the second transfer means are input via the data input means, and a reference pulse for synchronizing the two transfer means is transmitted. Data relating to the position of each transfer means is stored in the storage means with respect to the reference pulse, and an operation pattern corresponding to each transfer means is set based on the data. By controlling the first servomotor for driving the first transfer means and the second servomotor for driving the second transfer means based on each operation pattern, the two transfer means are synchronized. Operate in condition.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a driving device for a box packing machine according to the present invention. For convenience of explanation, “upstream”, “downstream”
"" Refers to the transfer direction of the box (the required flap of the cardboard sheet is folded) transferred by the transfer device.

As shown in FIG. 1 and FIG. 2, a lift device 12 as a first transfer means provided in the boxing machine 10 is capable of moving up and down along guide rods 14, 14 provided vertically. A body 16 is provided with two arms 18 extending toward the downstream side. A plurality (two in this embodiment) of suction cups 20 connected to a vacuum suction source (not shown) are provided on the upper surface of each arm 18, and are provided at a sheet supply unit (first position) provided above the lift device 12. The lower surface of the horizontally supplied cardboard sheet 22 can be suction-held. In addition, a rod 14 is
The screw shaft 24 arranged in parallel with the screw is inserted into the
Is driven by the first servomotor A via a power transmission mechanism 26 such as a belt-pulley connected to the screw shaft 24.
That is, by driving the first servomotor A forward and backward, the cardboard sheet 22 horizontally supplied to the sheet supply unit is lowered to a required position (second position) while being suction-held by the suction cups 20, 20. Can be done. The rotation speed of the first servomotor A (current position of the lifting body 16)
Is constantly detected by a rotary encoder RE _1,
The servo control of the servo motor A is performed by feeding back the rotation speed to a control device 28 described later.

At a fixed position near the upper end of the screw shaft 24, as shown in FIG.
7 origin sensor S ₁ such as a detectable proximity sensor is disposed, the amount of movement of the lifting member 16 (arm 18), the sensor S
It is set with reference to the detection position of ₁ . The origin signal from the origin sensor S ₁ is input to the control unit 28. Also, at a fixed position near the upper and lower ends of the screw shaft 24,
And detectable limit sensor S ₂ dog 17 and a lower limit sensor S ₃ is disposed, the detection signals of both sensors S _2, S ₃ the control unit 2
8 is input. Further, the ascending / descending range of the elevating body 16 is regulated by the two sensors S ₂ and S ₃ .

A plurality of folding guides 30 are provided at required positions below the sheet supply section. The corrugated cardboard sheet 22 lowered by the lift device 12 has a corresponding flap 22a folded by each guide 30. And a guide bed 3 described later in a state of being formed in a box shape that opens upward.
2,32. In the boxing machine 10, after the corrugated paperboard sheet 22 is horizontally supplied to the sheet supply unit,
A packaged object 33 is supplied to a required position of the sheet 22. Therefore, a box body (a required flap 22a of the corrugated cardboard sheet 22 is folded in) on the guide beds 32, 32. Is placed. For convenience of explanation, this box is denoted by reference numeral 34.

A pair of guide beds 32, 32 are disposed below the sheet supply section of the corrugated cardboard sheet 22 in parallel with a predetermined distance therebetween, and the corrugated board is lowered together with the article 33 to be packaged through the lift device 12. Sheet 22
The beds 32, 32 are placed on a box supply unit (second position immediately below the sheet supply unit). And this box 34 is the second
It is configured to be transferred downstream by a transfer device 36 as transfer means. This transfer device 36 is shown in FIG.
As shown in the figure, a carriage 38 which is moved forward and backward between the box body supply unit and the box making position along the guide beds 32, 32,
The two guide beds 3 are erected at the upstream end of the carriage 38.
First pusher 40 extending upward from between 2, 32
Is disposed at the downstream end of the carriage 38, and both beds 32,
32 and a second pusher 42 which can be moved in and out of the space 32. Further, a pair of sprockets 44, 44 are disposed below the guide beds 32, 32 at predetermined intervals in the transport direction of the box 34, and the two sprockets 44, 4 are arranged.
A chain 46 wound between the four is fixed at an appropriate position on the carriage 38. One of the sprockets 44, second driven rotated by the servo motor B via the speed reducer 48 and a belt transmission system 50, the servo motor B is servo-controlled rotation by the rotary encoder RE ₂ (see FIG. 4) . In addition, as a transfer means of the carriage 38, a toothed belt-toothed pulley may be adopted instead of the chain-sprocket.

The first pusher 40 comes into contact with the back surface (the surface on the upstream side in the transfer direction) of the box body 34 placed on the guide beds 32, 32, and moves the downstream side with the forward movement of the carriage 38. It functions to transfer to the side box making position (third position). The first pusher 40 moves by an amount of movement based on an operation pattern to be described later, and the back of the box body 34 is glued by a crimping plate 56 (described later) disposed at a box making position.
2b is set so as to face a position where crimping is possible. The second pusher 42 protrudes above the bed 32 when the carriage 38 moves forward, and pushes the box 34 transferred to the box making position in the previous cycle from the boxing machine 10 toward a subsequent process. It works to get out. When the carriage 38 moves backward, the first pusher 40
When the second pusher 42 comes into contact with the box 34 transferred to the box making position by the
Of the carriage 38 so as not to hinder the retreat thereof.

[0013] in a fixed position on the upstream side close to the movement path of the carriage 38, as shown in FIG. 2, a dog 51 which is disposed in該台wheel 38 is capable of detecting the origin sensor S ₄ is disposed, carriage 38 The amount of movement of the (first pusher 40) is
₄ is set based on the detection position. The origin signal from the origin sensor S ₄ is input to the control unit 28. Also, in a fixed position upstream and downstream vicinity of the transfer device 36, the upstream sensor S ₅ capable of detecting the dog 51 and the downstream sensor S ₆ is disposed, the detection signals of both sensors S _5, S ₆ the control device 28. The movement range of the carriage 38 is regulated by the two sensors S ₅ and S ₆ .

[0014] On both sides of the transfer path of the box 34, FIG.
As shown in FIG. 7, gluing devices 52, 52 for applying an adhesive to the flaps 22a, 22a on the side portions folded by the lowering of the lift device 12 are arranged. A plurality of guides 30 are provided on both sides and above the transfer path for folding the remaining flaps 22a which are not folded due to the lowering of the lift device 12. Further, the front of the box 34 transferred by the first pusher 40 is located at the box making position.
A stopper 53 is provided for abutting on the (transfer direction downstream surface) and positioning the same, and a plate 54 for pressing the flaps 22a, 22a located on the side of the box body 34,
54 are provided. On the opposite side of the stopper 53 and the box body 34, the glue allowance 22b of the cardboard sheet 22 is provided.
A plate 56 to be crimped on the back of the box is provided. Each of the stopper 53 and the plates 54 and 56 is moved between a standby position and an operating position by a driving means such as a cylinder.

An adhesive is applied to the glue margin 22b before the corrugated cardboard sheet 22 is supplied to the supply section. Reference numeral 57 denotes the box 34
FIG. 4 shows a plate for pressing the upper surface and the upper side of the box body 34. When the glue margin 22b and the flaps 22a, 22a glued by the plates 56, 54 are pressed, the box 34 is pressed.
Is provided so as to be able to perform a reliable press-bonding while maintaining the pressure. The left and right plates 57 are integrally operated by driving means such as a cylinder. As a result, the box body 34 transferred to the box making position by each of the crimping means 53, 54, 55, 56, 57 is attached to the flap 22 on which the adhesive is applied.
Along with a and 22b, the box body 34 is held from the outside, so that good box packing molding is performed.

FIG. 5 is a block diagram schematically showing the control device 28 of the boxing machine according to the present embodiment. The arithmetic unit 58 functionally performs an input data arithmetic processing, and the first servomotor. control for controlling the a and the second servo motor B
A servo control unit 60 as control means and a register unit 62 as storage means for storing control data are provided.
The operation panel 64 provided in the packaging machine 10 has setting input means as data input means such as a keyboard for inputting various data, buttons for instructing start / stop of the packaging machine, and the like. The input data is stored in the register unit 62 via the operation panel interface 66. As the input data, various data such as the type of the packaged object, data for operating the lift device and the transfer device in a required operation pattern, and the number of rotations of the packaging (packing capacity per unit time) are input. In addition, as the operation panel 64,
For example, a setting input unit including a touch panel or the like may be provided, and various data may be input by operating a key called on a display screen of the unit by selecting an operation menu.

The origin sensor S _{1 of the} lift device 12
And upper limit sensor S ₂ , lower limit sensor S ₃ , transfer device 36
Each of the signals from the origin sensor S _{4, the} upstream sensor S ₅ , and the downstream sensor S ₆ of the sensor input interface 68
Is input to the register section 62 as a digital input. The first servo motor A for driving the lift device 12 is further moved by the servo amplifier 70 to the transfer device 36.
The second servomotor B that drives the servomotors is controlled by a servo amplifier 72. Further, a rotation signal from the rotary encoder RE ₁ that detects the number of rotations of the first servomotor A is input to the servo control unit 60 and the servo amplifier 70. The rotation signals from the rotary encoder RE ₂ for detecting the rotational speed of the second servo motor B also, the servo control unit 60
And the servo amplifier 72.

The servo control unit 60 includes an unequal speed control unit 7
4 and a reference pulse generation whose pulse generation interval is changed in accordance with the packaging rotation speed which is set in advance and received in the register unit 62 in response to a pulse signal of a master clock transmitter represented by a clock pulse generator. Means 76
A reference pulse transmitted from the reference pulse generation means 76 based on data for operating the lift device 12 and the transfer device 36 in a required operation pattern stored in the register unit 62 by input setting. A synchronous control signal relating to the position and speed of the first servomotor A and the second servomotor B is transmitted by a speed control signal from the unequal speed control unit 74. In addition, the reference pulse generating means 76 receives an input of a start signal or a stop signal to the lift device 12 and the transfer device 36,
It is set to transmit and stop the reference pulse.

That is, the servo control unit 60 controls the lift device based on the various data set and stored in the register unit 62 and the reference pulse generated by the reference pulse generating means 76 as shown in FIG. The calculation is performed so as to provide data on an operation pattern corresponding to a conventional cam corresponding to the transfer cam 12 and the transfer device 36.
Then, based on this operation pattern, the start / stop and forward / reverse rotation signals of the first servomotor A of the lift device 12 and the second servomotor B of the transfer device 36 are output and synchronously controlled respectively.

Here, as a procedure for setting the operation pattern, a type number and a type name are input by the setting input means, and various data relating to a packaging rotation number and the like corresponding to each type are input. Corrugated cardboard sea facing the first position in the lift device 12 for each number
1 cycle for transferring the sheet 22 to the second position and the molded cardboard sheet facing the second position in the transfer device 36
The reference angle value when one cycle of transferring the container 22 (the box 34) to the third position is converted into an angle of 360 °, and the arm 18 in the lift device 12 and the first pusher 40 in the transfer device 36 for the reference angle value. A plurality of data (in this embodiment, four points) are input as numerical values in units of millimeters. In order to give data on the cam curve for the section where the movement amount differs between the input points (when the device is moving), a.Deform constant velocity, B.deformed sine, c.deformed trapezoid, d.cycloid Select any cam curve data. Thereby, for example, an operation pattern as shown in FIG. 6 is set. The data on the operation pattern set in this way is set and stored for each type number, and when the type of the packaged object 33 is changed due to an order change or the like, the data of the same type is already stored. If the setting is stored, the operation pattern is automatically set. The method of selecting cam curve data for a section having a difference in the amount of movement may be selected from the above four types for each section or for each of the devices 12, 36, or may be selected from the two types of devices. 36, the same cam curve data may be set.

As for this operation pattern, standard data is stored in advance for each device 12 and 36, and the standard data is corrected only when the operation pattern needs to be changed for a new type. Since the setting of the data relating to the operation pattern is changed in the operation, the work can be facilitated. By registering the data on the corrected operation pattern, it is possible to reduce a loss time required for setting change at the time of order change.

[0022]

Next, the operation of the box packing machine according to the embodiment configured as described above will be described.

Prior to the operation of the boxing machine 10, the operation panel 6
By operating the setting input means 4, the kind number and kind name of the article 33 to be packaged, the number of rotations of the packing, data for operating the lift device 12 and the transfer device 36 in a predetermined operation pattern, and the like are input. The data is stored in the register section 62 via the operation panel interface 66. The data on the operation pattern of the lift device 12 and the transfer device 36 is further input in millimeters using the input reference angle value as the reference pulse number corresponding to the reference pulse transmission interval by the reference pulse generation means 76. Data relating to the amount of movement is stored in the register unit 62 as the number of pulses for controlling the amount of rotation of each of the servo motors A and B. The various data stored in the register unit 62 are subjected to arithmetic processing in the arithmetic unit 58 and input to the servo control unit 60, and the servo control unit 60 stores a timing table for the operation patterns of the lift device 12 and the transfer device 36. The synchronous control of the lift device 12 and the transfer device 36 is performed based on the obtained timing tables of the devices 12 and 36. In the embodiment, for the operation of the arm 18 of the lift device 12 and the first pusher 40 of the transfer device 36, for example, data on the following operation pattern is set.

[0024]

That is, the lift device 12 and the transfer device 36
In the one-cycle operation, the lift device 12
As shown in the table of FIG.
Moved at reference angle = 5 ° when angle is converted into 360 °
Movement amount = 5 with amount = 500 mm and reference angle = 100 °
00mm is the descent stop position and the
Is the data for setting the period, and the reference angle is also 20
Movement amount at 0 ° at 5 ° and movement amount at 275 ° reference angle
= 0 mm is the ascending stop position and the
This is the data for setting the period. And the movement amount is 50
Base variable from 0mm to 0mm or 0mm to 500mm
Reference angle = 100 ° to reference angle = 205 ° or reference angle
= 275 ° to reference angle = 5 °, the device movement section is set.
It is. In the transfer device 36, the reference angle = 170 °
At 820mm and reference angle = 170 °
Amount = 820mm is the data that sets the advance position and its period.
The reference angle is 340 ° and the travel amount is 0 mm.
And the reference angle = 0 ° and the movement = 0 mm
This is the data for setting the period. And the movement amount is 0m
Base variable to m-820mm or 820mm-0mm
Reference angle = 0 ° to reference angle = 170 ° or reference angle = 1
When 70 ° to reference angle = 340 °, the device movement section is set.
It is. In a section in which the amount of movement is variable based on the previously input data (the area in which the lift device 12 and the transfer device 36 are moving), an optimum one is selected from the four options corresponding to the above-described cam curve. By doing so, when the lift device 12 and the transfer device 36 are moved, an operation pattern is given so that predetermined acceleration start and deceleration stop are performed, and this data is also used for each device 12, The data are stored in the register unit 62 as the movement position of 36 and the value obtained by converting the data into the number of pulses.

In this embodiment, the cycle stop timing is set at the reference angle of 180 °, and the cycle stop timing is before the highest position of the arm 18 in the lift device 12 and the transfer device 3
6 is set to be after the most advanced position of the first pusher 40, and a stop standby position of each device 12, 36 until the cardboard sheet is supplied to the sheet supply position and the packaged object is supplied on the sheet. It is said. Then, after the box body 34 is completely transferred to the box making position by the pusher 40, the box body 34 is stopped and waited, so that the adhesive applied to the side flap 22a is dried during the transfer. Each crimping means 5 provided at the box making position without performing
3, 54, 56, 57 ensures reliable boxing.

With the above data setting, the lifting device 12
6 (a) and 6 (b), the moving position of each device 12, 36 is set to a predetermined value according to the number of reference pulses transmitted from the reference pulse generating means 76 according to the operation patterns shown in FIGS. Is processed by the servo control unit 60 so that the speed control signal is generated from the unequal speed control unit 74, and the control signal generated from the servo control unit 60 is servo-controlled via the servo amplifiers 70 and 72. A required speed command is given to the motors A and B.

By the synchronous setting operation of the boxing machine 10, transmission of reference pulses from the reference pulse generating means 76 is started at predetermined intervals, and at the same time, the lift device 12 and the transfer device 36 are transmitted.
Are driven at low speed.
In response to input of the origin signal from the origin sensor S _4, which is arranged in the lifting device 12 the origin sensor S ₁ and the transfer device 36 is disposed in the movement to the home position where the devices 12, 36 are set in advance Thereafter, the transmission of the reference pulse by the reference pulse generating means 76 is stopped, and the servo motors A and B are stopped, whereby the synchronous set operation of the lift device 12 and the transfer device 36 is completed.

When the apparatus is started by a start button (not shown), a reference pulse from the reference pulse generating means 76 is continuously transmitted while the corrugated cardboard sheet is supplied to the sheet supply section, and the servo motors A, B Starts spinning,
The lift device 12 and the transfer device 36 are activated from the origin position. By reaching the cycle stop position set at the reference angle of 180 °, the transmission of the reference pulse from the reference pulse generation means 76 is stopped, and the servo motors A and B stop rotating, and the lift is lifted. Apparatus 1
The movement of the transfer device 2 and the transfer device 36 is stopped and the transfer device 36 enters a standby state.

A corrugated cardboard sheet 22 is supplied to a sheet supply section above the lift, and the packaged object 3 is placed at a required position on the sheet.
3 is supplied, a supply completion signal of the packaged object 33 is transmitted, and an activation signal for the lift device 12 and the transfer device 36 is transmitted in response to the input of the signal, so that the reference pulse generation means 76 The reference pulse is emitted continuously. Thus, the lift device 12 and the transfer device 36 that have been waiting to be stopped at the cycle stop position are started to be activated. That is, the servo motor A is rotated, and a rotation signal from a rotary encoder RE ₁ attached to the motor A is input to the servo control unit 60 and the servo amplifier 70 so that the servo control is performed. Rises according to the operation pattern shown in FIG. Then, the first servomotor A is controlled to stop at the time when the reference angle value becomes 205 ° and reaches the angle. Thus, the cardboard sheet 22 is suction-held by the suction cups 20 provided on the arms 18 of the lift device 12. The second servo motor B also rotates at the same time, and a rotation signal from the rotary encoder RE ₂ attached to the motor B is transmitted to the servo controller 60.
The servo 38 is servo-controlled by being input to the servo amplifier 72 and the carriage 38 of the transfer device 36 moves backward in accordance with the operation pattern shown in FIG.

When the reference angle value is 275 °, the first servomotor A rotates in the reverse direction, and the elevating body 16 starts descending, so that the corrugated cardboard sheet 22 descends together with the article 33 to be packaged. The required flaps 22a are folded by the plurality of folding guides 30, and are placed on the guide beds 32, 32 in a state of being formed in a box shape that opens upward. When the reference angle becomes 5 ° in the next cycle, the first servomotor A stops. Suction cup 2
The suction of the cardboard sheet 22 by 0 is also released. The second servomotor B continues to rotate until the reference angle becomes 340 °, and stops after the first pusher 40 of the transfer device 36 faces the upstream side of the box supply position. . That is, before the corrugated cardboard sheet 22 lowered by the lift device 12 arrives at the box body supply position, the first
The pusher 40 moves to the upstream side of the supply position.

The second servo motor B of the transfer device 36
The reference angle value is rotated from the beginning (0 °) of the next cycle, and the back surface of the box 34 placed at the box supply position on the guide beds 32, 32 is pushed by the first pusher 40. It is transported. And during this transfer, the box 3
The adhesive is applied to the required flaps 22a, 22a of FIG.
2a is formed by folding through the guide 30. Note that the lowermost end position of the lift device 12 (the position where the moving amount is 500 mm) is set to be lower than the upper surface level of the guide bed 32, and the arms 18 At the time when the box 34 further descends, the box 34 is transferred by the first pusher 40.

The first servo motor A of the lift device 12
Is rotated after stopping the rotation until the reference angle value changes from 5 ° to 100 °, and raises the elevating body 16. When the reference angle value reaches 170 °, the second servomotor B is reversed and the carriage 38 moves backward, and when the reference angle value reaches 180 °, the motor B stops. Thereby, the box 3 transferred along the guide beds 32, 32
4 will be transferred to the required position of the box making position. When the reference angle value reaches 180 °, the first servomotor A also stops, and waits until a supply completion signal for the next packaged object 33 is input. Thus, one cycle is completed, and the transmission of the reference pulse from the reference pulse generating means 76 is stopped.

When the box body 34 transferred to the box making position is positioned with the stopper 53 in contact with the front surface thereof, the side and upper crimping plates 54 and 57 operate to operate the corresponding flap 22a. To the body. In addition, the crimping plate 56 for the glue is operated, and the box
The box making is completed by bonding the adhesive margin 22b to the back surface of the box. When the cart 38 advances in the next cycle, the box body 34 is pushed out to a subsequent process via the second pusher 42 disposed on the cart 38.

Next, when the operation pattern needs to be changed in accordance with the change of the kind of the packaged object 33 due to the change of the order, the data is input by the setting input means of the operation panel 64, and the operation pattern corresponding to this is input. Is set. If the type is already set and stored, the operation pattern is automatically set by calling the data, and the loss time required for order change can be extremely reduced. In addition, the lift device 12 and the transfer device 36 can be operated efficiently, and a reduction in packaging ability can be prevented.

In this embodiment, a box packing machine (wraparound caser) having a structure in which corrugated cardboard sheets are supplied one by one to a supply section and the sheets are lowered via a lift device has been described as an example. The present application is not limited to this. For example, the cardboard sheets collected in the sheet magazine are taken out one by one from below by a take-out device,
It can also be suitably applied to a boxing machine (setup caser) configured to open the sheet in a box shape at the time of this removal. Further, the present invention is not limited to the corrugated cardboard sheet, and it is a matter of course that the present invention can be applied to a cartoner or the like for forming a thin sheet such as a cardboard into a box and packing an article to be packed into a box.

[0037]

As described above, according to the driving apparatus of the boxing machine according to the present invention, it is possible to synchronously control each of the transfer means in an arbitrary operation pattern according to the characteristics of the article to be packaged. Thus, it is possible to obtain the optimum operation and the maximum packaging speed corresponding to each type. In addition, since the supply method of the packaged object can be set to an arbitrary value, the stopping time of the transfer means required for supplying the packaged object according to the different supply method can be set to an arbitrary value, such as a suction conveyance method by a robot or a pusher pushing method. As in the conventional cam drive system, it is possible to respond without changing the packaging ability itself due to the difference in the supply system.

By storing the setting data for each type of the packaged object, when the type is changed, the operation pattern is automatically set based on the stored data.
Even an unskilled operator can easily change the setting. In addition, the rotation control of the servo motor regarding acceleration start and deceleration stop when each transfer means operates is performed by selecting an operation pattern by selecting from data corresponding to a plurality of types of cam curves, according to a property of a packaged object. As a result, more optimal drive control can be performed.

[Brief description of the drawings]

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

FIG. 2 is a schematic vertical sectional side view of the box packing machine.

FIG. 3 is a schematic side view showing a lift device in the box packing machine.

FIG. 4 is a schematic plan view showing a transfer device in the box packing machine.

FIG. 5 is a control block diagram of the box packing machine according to the embodiment.

FIG. 6 is an explanatory diagram showing operation patterns of a lift device and a transfer device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 Lifting device (1st transfer means) 22 Corrugated cardboard sheet 36 Transfer device (2nd transfer means) 60 Servo control part 62 Register part 64 Operation panel A 1st servomotor B 2nd servomotor

Continuation of the front page (72) Inventor Kazuhiro Hanaki 2-14-10 Kameshima, Nakamura-ku, Nagoya-shi, Aichi Prefecture Fujikikai Co., Ltd. (72) Inventor Yoshio Murai 2- 14-10 Kameshima, Nakamura-ku, Nagoya-shi, Aichi Co., Ltd. Fujiki Kainai (72) Inventor Katsumi Kato 2-14-10 Kameshima, Nakamura-ku, Nagoya City, Aichi Prefecture Fujikikai Co., Ltd. (72) Inventor Hori 2- 14-10 Kameshima, Nakamura-ku, Nagoya City, Aichi Prefecture Fujikikai Co., Ltd.

Claims (5)

(57) [Claims] 1. A lifting device sheet (22) facing the first position location
(12) to form to the required stage during transfer to the second position location provided below the position, and then transferred to the third position location by the transfer device of the sheet (22) which is the form (36) A box packing machine which forms a final box between the boxes and packs and packs the articles (33), wherein the first servo motor (A) drives the lift device (12).
A second servomotor (B) for driving the transfer device (36); and a package rotation speed, a lift device (lift device (12)) for operating the lift device (12) and the transfer device (36) in a predetermined operation pattern. 1
The data value for setting the ascending stop position as the first position and the ascending stop position as the second position in the one-cycle operation of 2) and the third position in the one-cycle operation of the transfer device (36) . Forward position and front as position
And it has a data input means to enter data values for setting the serial retracted position and the period of the second position, lifting device (12) based on manual input setting data to the input hand stage and transfer device The data for operating (36) in a predetermined operation pattern is obtained and the first and second servo motors (A,
A calculating unit (58) for calculating a timing table for controlling the rotation amount of B); a storage means (62) for storing the calculated timing tables of the lift device (12) and the transfer device (36); A control means (60) for synchronously controlling the position and speed of the first servomotor (A) and the second servomotor (B) based on a timing table stored in a storage means (62). Drive in a boxing machine. 2. A lift is manually inputted to the input hand stage device
(12) The data value for setting the ascending stop position as the first position and the descent stop position as the second position in the one cycle operation in the one cycle operation, and the data value for one cycle operation of the transfer device. wherein the forward position as the third position
The data value for setting the retreat position as the second position and the period thereof is 360 cycles for each device (12, 36).
The reference angle value and the amount of movement in each device (12, 36) with respect to the angle value when converted into degrees in degrees, and a plurality of the set values are input, whereby the lift device (12) and the transfer device (36 2. The driving device in the boxing machine according to claim 1, wherein the timing table of (1) is calculated and controlled. Wherein the control means (60) receives the pulse signal of the master clock oscillator, the reference pulse generating means for pulse generation interval in accordance with the packaging rotational speed that is more to the input hand stage is changed ( 76), the first servomotor (A) and the second servomotor (A) are based on the number of reference pulses transmitted from the reference pulse generation means (76) and the respective timing tables of the lift device (12) and the transfer device (36).
3. The driving device in a box packing machine according to claim 1, wherein the position and the speed of the servo motor (B) are set so as to be synchronously controlled. 4. The input data is stored as setting data for each kind of a packaged object (33) packed by a boxing machine.
The driving device for a box packing machine according to claim 1, 2 or 3, wherein the driving device is stored in (62). 5. The lift device (1) in the operation pattern.
2) and the pattern in the moving area of the transfer device (36)
5. The driving device for a boxing machine according to claim 1, wherein the data is selected and set from a plurality of types of data corresponding to a cam curve and is stored in the storage means (62).