JP2003145489A - Log feed control device in log cutting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a log feed control device in a log cutting machine in which a first roll product P1 and an N-th roll product PN from a log can be cut at a desired product length D, the patterned log is cut to the pattern on the roll product, and the roll products P1 to PN can be cut at different product length. SOLUTION: The log feed control device in the log cutting machine in which the log L is intermittently fed by a feed conveyor 10 which is feed-controlled by a servo motor 2, and the log L is cut into a plurality of roll products P1 to PN by a cutter knife 14 comprises a touch panel 21 which is a data input unit, a controller 22 and an output unit 23. The touch panel 21 which is the data input unit can input an arbitrary value for the product length of the first roll product P1 and the product length of the N-th roll product PN out of N pieces of roll products P1 to PN to be cut out of one log L.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a log feed control device for a log cutting machine. The log is obtained by winding paper into a log shape, and when this is cut into a predetermined length, it becomes toilet paper or kitchen roll paper. Generally, paper made by a paper machine is wide and is wound as it is by a winder to a large diameter (about 2 to 4 m in diameter). Use this large-diameter roll paper as a small-diameter (φ100mm to 120mm for toilet paper, φ1 for kitchen roll paper).
It is called a log because a small diameter and long one that is rewound to 10 to 130 mm, etc. has a log shape. This log is 105m
When cut at predetermined intervals such as m, 108 mm, 114 mm, etc., it becomes toilet paper. When cut at intervals of about 220mm to 230mm, it becomes kitchen roll paper.

[0002]

2. Description of the Related Art A conventional log cutting machine is disclosed in
Japanese Patent Application Publication No. 09156 discloses the basic structure of the device, which will be described with reference to FIG. In the figure, reference numeral 14 denotes two cutter knives, which are attached to a rotating shaft 13 rotatably provided at the tip of a rotor arm 11, and which rotates at a high speed when the rotating shaft 13 is rotated by a motor or the like. It has become. Rotor arm 11 is shaft 1
It is rotatable around 2 and is rotated by a motor or the like. Therefore, the cutter knife 14 revolves while rotating. When the log L is intermittently fed by a feed conveyor 10 such as a flight chain, the log L is cut by a cutter knife 14 that rotates while revolving, and is finished into a roll product P such as toilet paper and kitchen roll paper. The log L is set to a desired cut length, for example,
In order to cut into roll products P at 108 mm or 114 mm, a log cutting machine of a type in which the feed stroke of the feed conveyor 10 is controlled by a servomotor has been developed. Feed conveyor 1 for flight chains etc. by servo motor
By controlling the feed of 0, the log can be accurately sent by a desired feed amount, and the log can be cut into desired roll products of the same dimensions.

[0003]

However, when the log L is cut by the cutter knife 14, the distance between the cut portion and the leading end surface of the log L becomes shorter. There is a characteristic that flows according to. For this reason, as shown in FIG. 8, even if the input to the servomotor is set to a desired product length D, one log L
Of the N roll products P actually cut from the first and last roll products, that is, the first roll product P ₁ and the N-th roll product P _N , the leading trim portion and the trailing trim portion are each When trimming, it may be cut longer than the desired product length D. In the figure, the first roll product P ₁ are as long cut error d ₁ than the desired product length D, the N-th rolled products P _N is as long cut error d ₂ than the desired product length D ing. As described above, all the roll products P _{1 to} P _N
May not be cut to the same product length. Also,
In recent years, in particular, since user needs have diversified and a roll product P with a pattern is often manufactured, a log in which a pattern is printed in advance in accordance with the product length D of the roll product P is recorded at the same interval as the product length D. It is necessary to cut it.
However, to be able to cut the product length of rolled products P _1, P _N in the desired product length D, can not be accurately cut to the attached log L textured in design. Furthermore, the sending conveyor 10 such as a flight chain for sending logs,
When the log is used, the log may be extended. In this case, the log is sent longer than a desired feed length, and the dimensions of the roll product P are deviated. In addition, the flight chain may locally extend, and the product length of the roll product P corresponding to the extended portion becomes longer than the desired product length D, so that the entire flight chain needs to be updated. Furthermore, in the conventional log cutting machine, roll products having the same dimensions can be obtained from one log, but roll products having different product lengths cannot be obtained from one log. Therefore, when N roll products P having different product lengths are to be manufactured, N logs are always required. For this reason, all N logs must be cut, which is troublesome and time-consuming, and often eliminates the need for logs after taking roll products, which is wasteful.

In view of such circumstances, the present invention can cut out all product lengths of all roll products P _{1 to PN} from a log at a desired product length D, all the same lengths. it is possible to prevent the size deviation, a log with a pattern can be accurately cut to the pattern of the roll product, also log feed control that can be cleaved by the product length different lengths of each roll product P ₁ to P _N It is intended to provide a device.

[0005]

According to the first aspect of the present invention, there is provided a log cutting machine.
The log feed control device in the
The log is intermittently fed by a feed conveyor that is
Cutting machine that cuts logs into multiple roll products with a cutter
The log feed control device according to
Controller and an output section, wherein the data input section
Roll products P cut from one log L
₁~ P_NOf the first roll product P₁Product length and
And Nth roll product P_NAny value as the product length of
Can be input as data. Claim
The log feed control device in the log cutting machine according to item 2 is described in claim
2. The control device according to claim 1, wherein
Origin return request means for sending an origin return signal to the
And the controller receives an origin return signal.
And zero the origin value of the servo motor
The position where the flight of the feed conveyor is detected by the
Equipped with origin resetting means for resetting as the origin
It is characterized by. According to a third aspect of the present invention, there is provided a log feed control method comprising the steps of:
Logs are recorded on a feed conveyor controlled by a motor.
Intermittently feed the logs to multiple roll products with a cutter
A log feed control method for a log cutting machine
In the data input section, N cut out from one log L
Roll products P₁~ P_NOf the first roll products
P ₁Product length and Nth roll product P_NProduct length
Enter a value shorter than the desired product length D
N-1st roll product P₂~ P_N-1Product length D
₂~ D_N-1Enter the same value as the product length D
It is characterized by. According to a fourth aspect of the present invention, there is provided a log feed control method comprising:
Logs are recorded on a feed conveyor controlled by a motor.
Intermittently feed the logs to multiple roll products with a cutter
A log feed control method for a log cutting machine
In the data input unit, N cut out from one log L
Roll products P₁~ P_NProduct length D in₁~ D_N
Data input with different values for
I do.

According to the first aspect of the present invention, data input means
N rolls cut from one log L
Product P₁~ P_N1st and Nth rolls
Product P₁, P_NProduct length D₁, D_NEnter any value as
I can do it. Therefore, the first and Nth rolls
Product P₁, P_NProduct length D₁, D_NFrom the desired product length
By inputting short values, the cutter knife
Therefore, the first and Nth rows actually cut
Product P₁, P_NProduct length D₁, D_NIs the desired product length D
Can be as long as. So all the roles
Product P₁~ P_NProduct length D₁~ D_NCut to the same length
It is possible to match the patterned log with the pattern of the roll product.
Can be cut accurately. According to the second aspect of the invention,
Origin return request to the controller by point return request means
Then, the controller uses the origin resetting means to
The origin value of the robot motor is cleared to zero, and the sensor
The position where the flight of the feed conveyor is detected is set as the origin.
Is reset. For this reason, e.g.
Dimensions of the roll product can be prevented. Contract
According to the invention of claim 3, the first roll product P₁And
And Nth roll product P_NProduct length D₁, D_NNitsu
Is actually longer than the value entered
Is done. Therefore, a value shorter than the desired product length D is set to the product length.
D₁, D_NBy entering data as
And Nth roll product P₁, P _NActual in
Product length D₁, D_NTo the 2nd to N-1st rolls
Product P ₂~ P_N-1Actual product length D in₂~ D
_N-1The same product length D can be used. Therefore, all
Roll product P₁~ P_NProduct length D₁~ D_NThe same made
It can be length D, and rolls with patterned logs
Can be cut accurately according to the pattern of the product. The invention of claim 4
According to all roll products P₁~ P_NEach product in
Length D₁~ D_NTo enter different values for
Therefore, each roll product P₁~ P _NActual products in
Length D₁~ D_NCan be cut at different lengths
Wear.

[0007]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a log cutting machine to which the log feed control device 20 of the present embodiment is applied. As shown in FIG.
Is a device for sending a rotation stop command to the servo motor 2,
The rotation of the servomotor 2 is controlled by the log feed control device 20. When the rotation of the servomotor 2 is controlled, this operation is performed by the servomotor 2 → the reduction gear 3 → the feed conveyor 10 →
The log is transmitted in the order of the flights 15, and the log is sent or stopped so that the log can be intermittently sent. That is, the log feed control device 20 of the present embodiment can control the log feed amount by controlling the rotation of the servo motor 2.

As shown in FIGS. 1 and 6, a sensor 16 for detecting a flight 15 is provided near the feed conveyor 10 and at a position before the log cutting position. When a flight 15 is detected by the sensor 16, a flight detection signal is transmitted to the log feed control device 20.

The log feed control device 20 according to the present embodiment is a device for controlling the amount of log L sent.
The log L will be described. FIG. 2 is an explanatory diagram of the log L.
As shown in the drawing, product length D of a plurality of rolled products P ₁ to P _N to be taken from the log L are all identical. The log L, advance pattern is printed in a position to be the rolled product P ₁ to P _N. Although some patterns are not printed in advance on the log L, the log feed control device 20 of the present embodiment can be applied to the log L as well.

FIG. 3 shows a log feed control device 20 according to this embodiment.
1 is a system configuration diagram of FIG. As shown in the figure, the log feed control device 20 of the present embodiment is a device including a touch panel 21, a controller 22, and an output unit 23.

FIGS. 4 and 5 are explanatory diagrams of the touch panel 21. FIG. As shown in FIGS. 4 and 5, the touch panel 21 is a data input unit for the user to input various setting values, and includes a plurality of switchable input screens W1 to W3.
It has. As shown in FIG. 4, the initial setting screen W1
Is a screen for the user to input each set value of the log length H, the desired product length D, the maximum trim length M, and the end trim length E. As shown in FIG. 5, the individual product length setting screen W
3 product length _{D 1} of the first-th roll product 1, the N-1 th roll product _P 2 _{to P N-1} of the product length D from the second
An arbitrary value can be input as data as _{2 to DN-1} and the product length DN of the _Nth roll product N.

As shown in FIG. 4, an origin return button is provided on the flight origin return screen W2. The origin return button is a button for returning the flight to the origin position and confirming the position with the servo motor encoder.

As shown in FIG. 3, the controller 22 stores a product length feed amount control program 32 and an origin resetting program 33 as processing programs.

The product length feed amount control program 32 is a program for controlling the rotation of the servo motor 2 so as to send the log L to the position of the cutter knife 14 by the product length D based on the input value input by the user on the input screen W1. is there. The origin resetting program 33 is a program that, upon receiving the origin return signal, clears the value of the origin of the servomotor 2 to zero, and resets the position where the flight 15 of the feed conveyor 10 is detected by the sensor 16 as the origin.

The output unit 23 is for giving the output data calculated by the processing programs 31 to 32 of the controller 22 to the servomotor 2 as a control command.

Next, the log feed control device 2 of this embodiment
The operation and effect of 0 will be described. N roll products P ₁ taken from one log L by the touch panel 21
Any value can data input as to P _N product length _D 1 to D _N. That is, at least, as a product length _D 1, _{D N} of the first position and the N-th rolled products P _1, P _N, an arbitrary value can be data input. Therefore, the first and Nth
By data input shorter than desired product length in th rolled products P _1, product length D ₁ of the P _N, D _N, 2
And as shown in FIG. 6, the same length of product length D _1, D _N of the first position and the N-th rolled products P _1, P _N, which is actually cut by the cutter knives 14 and the desired product length D Can be Therefore, all roll products P
Since the ₁ to P _N of the product length D ₁ to D _N can be cut all the same length, it can be accurately cut to the attached log L textured in pattern roll product. Incidentally, of the N-1 th from the 2nd through the touch panel 21 rolled product _P 2 _{to P N-1}
For the product length D ₂ to D _N-1 also, because each can enter any value, depending on the growth of such feed conveyor, cutting the product length of each roll products in the same length as the desired product length D be able to.

FIG. 7 is a flowchart of the flight origin return processing. As shown in FIGS. 4 and 7, when the origin return button on the flight origin return screen w2 on the touch panel 21 is pressed, an origin return request is sent to the controller 22. When there is an origin return request to the controller 22, the origin value of the servo motor 2 is cleared to zero by the origin reset program 33, and the position where the flight 15 of the feed conveyor 10 is detected by the sensor 16 is input as the origin. For this reason, it is possible to prevent the roll product from being out of dimension due to elongation of the feed conveyor 10 or the like.

Further, the touch panel 21, by data input values for each product length _D 1 to D _N for all the roll product _P 1 to P _N at different values, in fact in each roll product _P 1 to P _N Product lengths D _{1 to} D
_N can be cut at different lengths.

As described above, according to the log feed control device 20 of the present embodiment, all the roll products P ₁ to P ₁ are obtained from the log L.
All P _N in a desired product length D can be cut at the same length, rolled products P ₁ ~ by elongation or the like of the feed conveyor 10
It is possible to prevent the size deviation of P _N, the log L equipped with a pattern can be accurately cut to the pattern of the roll product P ₁ to P _N, also product length D of each roll product P ₁ to P _{N 1} to
This has the effect that _DN can be cut at different lengths.

[0020]

According to the first aspect of the present invention, the cutter knife
1st and Nth actually cut by
Roll product P₁, P_NProduct length D₁, D_NThe desired product
It can be the same length as the length D. Therefore, all
Product P₁~ P_NProduct length D ₁~ D_NAll the same length
Because it can be cut, the log with the pattern can be used
Can be cut accurately according to According to the invention of claim 2
If the roll product is out of order due to e.g.
Can be prevented. According to the third aspect of the present invention,
Logs with the same shape as the roll product
All roll products P that can be cut₁~ P_NProduct length D₁~ D_N
Are the same product length D. In the invention of claim 4,
According to all roll products P₁~ P_NProduct length in
D₁~ D_NBy entering different values for
, Each roll product P₁~ P _NActual product length in
D₁~ D_NCan be of different lengths.

[Brief description of the drawings]

FIG. 1 is a block diagram of a log cutting machine to which a log feed control device 20 of the present embodiment is applied.

FIG. 2 is an explanatory diagram of input values and measured values in a product length D.

FIG. 3 is a system configuration diagram of a log forwarding control device 20 of the present embodiment.

FIG. 4 is an explanatory diagram of a touch panel 21.

FIG. 5 is an explanatory diagram of the touch panel 21.

FIG. 6 is an operation explanatory diagram of the log feed control device 20 of the present embodiment.

FIG. 7 is a flowchart of a flight origin return process.

FIG. 8 is an explanatory diagram of a log cutting machine.

FIG. 9 is an explanatory diagram of input values and measured values of a product length D by a log feed control device in a conventional log cutting machine.

[Explanation of symbols]

2 Servo motor 10 feed conveyor 15 flights 20 Log feed control device 21 Touch Panel 32 Product length feed amount control program 33 Origin reset program L log P-roll products D Roll product length

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] December 18, 2002 (2002.12.
18)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

Log feed control <br/> equipment in [name INVENTION log cutting machine

[ Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a log feed control device for a log cutting machine. The log is obtained by winding paper into a log shape, and when this is cut into a predetermined length, it becomes toilet paper or kitchen roll paper. Generally, paper made by a paper machine is wide and is wound as it is by a winder to a large diameter (about 2 to 4 m in diameter). Use this large-diameter roll paper as a small-diameter (φ100mm to 120mm for toilet paper, φ1 for kitchen roll paper).
It is called a log because a small diameter and long one that is rewound to 10 to 130 mm, etc. has a log shape. This log is 105m
When cut at predetermined intervals such as m, 108 mm, 114 mm, etc., it becomes toilet paper. When cut at intervals of about 220mm to 230mm, it becomes kitchen roll paper.

[0002]

2. Description of the Related Art A conventional log cutting machine is disclosed in
There is a publication No. 09156 but will be described on the basis of the basic structure in FIG. In the figure, reference numeral 14 denotes two cutter knives, which are attached to a rotating shaft 13 rotatably provided at the tip of a rotor arm 11, and which rotates at a high speed when the rotating shaft 13 is rotated by a motor or the like. It has become. Rotor arm 11 is shaft 1
It is rotatable around 2 and is rotated by a motor or the like. Therefore, the cutter knife 14 revolves while rotating. When the log L is intermittently fed by a feed conveyor 10 such as a flight chain, the log L is cut by a cutter knife 14 that rotates while revolving, and is finished into a roll product P such as toilet paper and kitchen roll paper. The log L is set to a desired cut length, for example,
In order to cut into roll products P at 108 mm or 114 mm, a log cutting machine of a type in which the feed stroke of the feed conveyor 10 is controlled by a servomotor has been developed. Feed conveyor 1 for flight chains etc. by servo motor
By controlling the feed of 0, the log can be accurately sent by a desired feed amount, and the log can be cut into desired roll products of the same dimensions.

[0003]

However, when the log L is cut by the cutter knife 14, the distance between the cut portion and the leading end surface of the log L becomes shorter. There is a characteristic that flows according to. Therefore, as shown in FIG. 9 , even if the input to the servo motor is set to a desired product length D, one log L
Of the N roll products P actually cut from the first and last roll products, that is, the first roll product P ₁ and the N-th roll product P _N , the leading trim portion and the trailing trim portion are each When trimming, it may be cut longer than the desired product length D. In the figure, the first roll product P ₁ are as long cut error d ₁ than the desired product length D, the N-th rolled products P _N is as long cut error d ₂ than the desired product length D ing. As described above, all the roll products P _{1 to} P _N
May not be cut to the same product length. Also,
In recent years, in particular, since user needs have diversified and a roll product P with a pattern is often manufactured, a log in which a pattern is printed in advance in accordance with the product length D of the roll product P is recorded at the same interval as the product length D It is necessary to cut it.
However, to be able to cut the product length of rolled products P _1, P _N in the desired product length D, can not be accurately cut to the attached log L textured in design. Furthermore, the sending conveyor 10 such as a flight chain for sending logs,
When the log is used, the log may be extended. In this case, the log is sent longer than a desired feed length, and the dimensions of the roll product P are deviated. In addition, the flight chain may locally extend, and the product length of the roll product P corresponding to the extended portion becomes longer than the desired product length D, so that the entire flight chain needs to be updated. Furthermore, in the conventional log cutting machine, roll products having the same dimensions can be obtained from one log, but roll products having different product lengths cannot be obtained from one log. Therefore, when N roll products P having different product lengths are to be manufactured, N logs are always required. For this reason, all N logs must be cut, which is troublesome and time-consuming, and often eliminates the need for logs after taking roll products, which is wasteful.

In view of such circumstances, the present invention can cut out all product lengths of all roll products P _{1 to PN} from a log at a desired product length D, all the same lengths. it is possible to prevent the size deviation, a log with a pattern can be accurately cut to the pattern of the roll product, also log feed control that can be cleaved by the product length different lengths of each roll product P ₁ to P _N It is intended to provide a device.

[0005]

According to a first aspect of the present invention, there is provided a log feed control device for a log cutting machine, wherein a log is intermittently fed by a feed conveyor whose feed amount is controlled by a servomotor, and the log is cut into a plurality of roll products by a cutter. A log feed control device in a log cutting machine that cuts into a data input unit, a controller and an output unit, wherein the data input unit
, N roll products P cut from one log L
_{1 to} P _N , the product length and the length of the _first roll product P ₁
And the desired product as the product length of the _Nth roll product P _N
Data shorter than the length D is input, and the second to N-1
Th rolled products _P 2 _{~P N-1} product length _D 2 to D
It is characterized in that the same value as the product length D is input as _N-1 . According to a second aspect of the present invention, there is provided a log feed control device for a log cutting machine, wherein the data input unit includes origin return request means for transmitting an origin return signal to a controller. When a return signal is received, the origin value of the servomotor is cleared to zero, and a origin resetting means is provided for resetting a position where a flight of the feed conveyor is detected by a sensor as an origin .

[0006] According to the present invention, the first row
Each product length Le products P ₁ and the N-th rolled products P _N
The D _{1, D N,} from the data input value, the actual
Is cut long. Therefore, the desired product length D
To data input short value as a product length D _1, D _N
The first and Nth roll products P ₁ , P _N
Actual product length _D 1, _{D N} in, the second to fourth N-
The actual product in the first roll product _P 2 _{~P N-1}
It may be the same product length D and the length _D 2 _{~D N-1.}
Therefore, the product lengths D _{1 to} D of all the roll products P _{1 to} P _N
N can be the same product length D, and log with pattern
Can be cut accurately according to the pattern of the roll product. According to the invention of claim 2, when the origin return request is issued to the controller by the origin return requesting means, the origin value of the servo motor is cleared to zero by the origin resetting means, and the sensor detects the flight of the feed conveyor by the sensor. Is reset as the origin. For this reason,
The roll product can be prevented from being out of order due to elongation of the feed conveyor .

[ 0007]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a log cutting machine to which the log feed control device 20 of the present embodiment is applied. As shown in FIG.
Is a device for sending a rotation stop command to the servo motor 2,
The rotation of the servomotor 2 is controlled by the log feed control device 20. When the rotation of the servomotor 2 is controlled, this operation is performed by the servomotor 2 → the reduction gear 3 → the feed conveyor 10 →
The log is transmitted in the order of the flights 15, and the log is sent or stopped so that the log can be intermittently sent. That is, the log feed control device 20 of the present embodiment can control the log feed amount by controlling the rotation of the servo motor 2.

As shown in FIGS. 1 and 6, a sensor 16 for detecting a flight 15 is provided near the feed conveyor 10 and at a position before the log cutting position. When a flight 15 is detected by the sensor 16, a flight detection signal is transmitted to the log feed control device 20.

The log feed control device 20 according to the present embodiment is a device for controlling the amount of log L sent.
The log L will be described. FIG. 2 is an explanatory diagram of the log L.
As shown in the drawing, product length D of a plurality of rolled products P ₁ to P _N to be taken from the log L are all identical. The log L, advance pattern is printed in a position to be the rolled product P ₁ to P _N. Although some patterns are not printed in advance on the log L, the log feed control device 20 of the present embodiment can be applied to the log L as well.

FIG. 3 shows a log feed control device 20 according to this embodiment.
1 is a system configuration diagram of FIG. As shown in the figure, the log feed control device 20 of the present embodiment is a device including a touch panel 21, a controller 22, and an output unit 23.

FIGS. 4 and 5 are explanatory diagrams of the touch panel 21. FIG. As shown in FIGS. 4 and 5, the touch panel 21 is a data input unit for the user to input various setting values, and includes a plurality of switchable input screens W1 to W3.
It has. As shown in FIG. 4, the initial setting screen W1
Is a screen for the user to input each set value of the log length H, the desired product length D, the maximum trim length M, and the end trim length E. As shown in FIG. 5, the individual product length setting screen W
3 product length _{D 1} of the first-th roll product 1, the N-1 th roll product _P 2 _{to P N-1} of the product length D from the second
An arbitrary value can be input as data as _{2 to DN-1} and the product length DN of the _Nth roll product N.

As shown in FIG. 4, an origin return button is provided on the flight origin return screen W2. The origin return button is a button for returning the flight to the origin position and confirming the position with the servo motor encoder.

As shown in FIG. 3, the controller 22 stores a product length feed amount control program 32 and an origin resetting program 33 as processing programs.

The product length feed amount control program 32 is a program for controlling the rotation of the servo motor 2 so as to send the log L to the position of the cutter knife 14 by the product length D based on the input value input by the user on the input screen W1. is there. The origin resetting program 33 is a program that, upon receiving the origin return signal, clears the value of the origin of the servomotor 2 to zero, and resets the position where the flight 15 of the feed conveyor 10 is detected by the sensor 16 as the origin.

The output unit 23 is for giving the output data calculated by the processing programs 31 to 32 of the controller 22 to the servomotor 2 as a control command.

Next, the log feed control device 2 of this embodiment
The operation and effect of 0 will be described. N roll products P ₁ taken from one log L by the touch panel 21
Any value can data input as to P _N product length _D 1 to D _N. That is, at least, as a product length _D 1, _{D N} of the first position and the N-th rolled products P _1, P _N, an arbitrary value can be data input. Therefore, the first and Nth
By data input shorter than desired product length in th rolled products P _1, product length D ₁ of the P _N, D _N, 2
And as shown in FIG. 6, the same length of product length D _1, D _N of the first position and the N-th rolled products P _1, P _N, which is actually cut by the cutter knives 14 and the desired product length D Can be Therefore, all roll products P
Since the ₁ to P _N of the product length D ₁ to D _N can be cut all the same length, it can be accurately cut to the attached log L textured in pattern roll product. Note that the second to (N−1) th roll products P _{2 to} P _{N−1 are} operated by the touch panel 21.
For the product length D ₂ to D _N-1 also, because each can enter any value, depending on the growth of such feed conveyor, cutting the product length of each roll products in the same length as the desired product length D be able to.

FIG. 7 is a flowchart of the flight origin return processing. As shown in FIGS. 4 and 7, when the origin return button on the flight origin return screen w2 on the touch panel 21 is pressed, an origin return request is sent to the controller 22. When there is an origin return request to the controller 22, the origin value of the servo motor 2 is cleared to zero by the origin reset program 33, and the position where the flight 15 of the feed conveyor 10 is detected by the sensor 16 is input as the origin. For this reason, it is possible to prevent the roll product from being out of dimension due to elongation of the feed conveyor 10 or the like.

Further, the touch panel 21, by data input values for each product length _D 1 to D _N for all the roll product _P 1 to P _N at different values, in fact in each roll product _P 1 to P _N Product lengths D _{1 to} D
_N can be cut at different lengths.

As described above, according to the log feed control device 20 of the present embodiment, all the roll products P ₁ to P ₁ are obtained from the log L.
All P _N in a desired product length D can be cut at the same length, rolled products P ₁ ~ by elongation or the like of the feed conveyor 10
It is possible to prevent the size deviation of P _N, the log L equipped with a pattern can be accurately cut to the pattern of the roll product P ₁ to P _N, also product length D of each roll product P ₁ to P _{N 1} to
This has the effect that _DN can be cut at different lengths.

[0020]

According to the first aspect of the present invention, a pattern is provided.
All logs can be cut accurately according to the pattern of the roll product
Product length _D 1 to D _N of the same product of the roll product _P 1 to P _N
Length D can be used. According to the second aspect of the invention, it is possible to prevent the roll product from being out of dimension due to elongation of the feed conveyor or the like .

[ Brief description of the drawings]

FIG. 1 is a block diagram of a log cutting machine to which a log feed control device 20 of the present embodiment is applied.

FIG. 2 is an explanatory diagram of input values and measured values in a product length D.

FIG. 3 is a system configuration diagram of a log forwarding control device 20 of the present embodiment.

FIG. 4 is an explanatory diagram of a touch panel 21.

FIG. 5 is an explanatory diagram of the touch panel 21.

FIG. 6 is an operation explanatory diagram of the log feed control device 20 of the present embodiment.

FIG. 7 is a flowchart of a flight origin return process.

FIG. 8 is an explanatory diagram of a log cutting machine.

FIG. 9 is an explanatory diagram of input values and measured values of a product length D by a log feed control device in a conventional log cutting machine.

[Explanation of symbols] 2 Servo motor 10 feed conveyor 15 flights 20 Log feed control device 21 Touch Panel 32 Product length feed amount control program 33 Origin resetting program L log P-roll products D Roll product length

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Chotaro Yamaguchi             Kawanoe 1514 Kawanoe-cho, Kawanoe-shi, Ehime             Zoki Co., Ltd. F-term (reference) 3C024 CC01

Claims (4)

[Claims] 1. A log feed control device in a log cutting machine for intermittently feeding a log by a feed conveyor whose feed amount is controlled by a servomotor and cutting the log into a plurality of roll products by a cutter. , A controller and an output unit.
Of the _N roll products P _{1 to} P _N cut out from the first roll product P ₁ and the N-th roll product P _N , arbitrary values can be input as data. A log feed control device for a log cutting machine, characterized in that: 2. An origin return request means for transmitting an origin return signal to a controller in the data input unit. When the controller receives the origin return signal, the origin value of the servomotor is cleared to zero. 2. A log feed control device for a log cutting machine according to claim 1, further comprising origin resetting means for resetting a position where a flight of the feed conveyor is detected by a sensor as an origin. 3. A log feed control method for a log cutter in which a log is intermittently fed by a feed conveyor whose feed amount is controlled by a servomotor and the log is cut into a plurality of roll products by a cutter. Out of _N roll products P _{1 to} P _N cut out from one log L,
Th roll product length product P ₁ and the product length of the N-th rolled products P _N to the data input shorter than the desired product length D, the (N-1) th roll product P ₂ ~ from the second
Log feed control method in a log cutting machine, characterized in that the product length D ₂ ~D _N-1 of P _N-1 to the same value data type product length D. 4. A log feed control method in a log cutting machine for intermittently feeding a log by a feed conveyor whose feed amount is controlled by a servomotor and cutting the log into a plurality of roll products by a cutter, comprising: to send the log in the log cutting machine, characterized in that the data entered in the different values the value of each product length D ₁ to D _N in the N-rolled products P ₁ to P _N, which is cut from a single log L Control method.