JP2008200815A - Perforated line working method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a perforated line working method for forming a perforated line in a conveyance direction on carried sheets or a continuum of materials to be worked, which alleviates shock to a machine blade to reduce waste and wear even in selectively forming the perforated line on the material to be worked. <P>SOLUTION: While not working, the machine blade 16 is brought into contact with the surface of the material 19 to be worked and rotated in response to conveyance of the material 19. While working, the machine blade 16 is pressed by a pressing means from a non-working state onto a receiving barrel 17 in the thickness direction of the material 19 and rotated in response to the conveyance of the material 19, thereby forming the perforated line 19A. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sewing line processing method for forming a sewing line in a transport direction with respect to a sheet or a continuous workpiece to be transported.

  In recent years, for example, when a booklet that can be cut out in units of pages is produced, it is frequently performed that a sewing line is formed on a selected page instead of the entire page so that the booklet can be cut out. In the machining of the sewing machine line, since it is necessary to process a large amount continuously, it is desired to improve the machining efficiency by reducing the consumption of the sewing machine blade for forming the machine line.

  2. Description of the Related Art Conventionally, there are those disclosed in the following patent documents that form a sewing machine line in a transport direction on a workpiece such as paper to be transported.

Japanese Patent Application Laid-Open No. 06-182972

  In Patent Document 1, a sewing machine blade facing the receiving drum is supported by one end of a swing arm supported by a support block, and the other end is attached to a lifting cylinder that can be raised and lowered, and communicated with the lifting cylinder. A piston rod fixed to the support block is placed in the air cylinder, and the piston rod and the lifting cylinder are elastically urged away from each other. It is disclosed that the blade is in a state of being separated from the receiving cylinder, and air is supplied into the air cylinder so that the sewing blade is brought into contact with the receiving cylinder to be in an operation state in which vertical perforations are formed.

  However, since the machining of the sewing machine wire disclosed in the above-mentioned Patent Document 1 is performed from the state where the sewing machine blade is separated from the receiving cylinder at the time of machining, an impact is given to the sewing machine blade when contacted. Therefore, if repeated frequently to selectively form a sewing machine line, there is a problem that the consumption of the sewing machine blade is accelerated. On the other hand, it has also been proposed to provide a physical stopper to reduce the impact caused by the contact between the sewing machine blade and the receiving drum. However, it is extremely difficult to adjust the stopper with respect to the eccentric part of the receiving drum. In the case where it is insufficient, there is a problem that the sewing machine blade is easily damaged or worn, and unevenness is generated in the formed sewing machine wire.

  Accordingly, the present invention has been made in view of the above problems, and provides a sewing wire processing method that reduces the impact on the sewing machine blade and reduces wear and wear even when forming the sewing wire selective to the workpiece. The purpose is to do.

  In order to solve the above problems, in the invention of claim 1, a rotatable sewing blade is disposed facing the rotatable receiving drum, and the workpiece is conveyed on the receiving drum in the conveying direction. A sewing line processing method for performing processing for selectively forming a sewing line with the sewing blade, wherein the sewing blade is brought into contact with the surface of the workpiece when not being processed, and the workpiece The sewing blade is pressed by the pressing means from the non-processed state to the thickness of the workpiece to the upper surface of the workpiece, and is processed according to the conveyance of the workpiece. A machine line is formed by being rotated, and the non-machining and machining are selectively performed depending on whether or not the workpiece is a machining target.

According to a second to fourth aspect of the present invention, “when the non-machining sewing machine blade is brought into contact with the surface of the workpiece, the sewing blade is attached to the workpiece side or in the opposite direction by an adjusting means. ”
In the “non-working or machining of the workpiece, the sewing blade is rotated in synchronization with the conveyance of the workpiece by a driving unit”.
“When the workpiece is not conveyed onto the receiving drum, the sewing machine blade is brought into contact with the receiving drum and rotated according to the rotation of the receiving drum”.

  According to the present invention, at the time of non-machining, the sewing machine blade is brought into a contact state on the surface of the workpiece and rotated according to the conveyance of the workpiece, and at the time of machining, the sewing machine blade is moved from the non-machining state. The sewing machine blade is configured to form a sewing line by being pressed by the pressing means in the thickness direction of the workpiece to the upper surface of the receiving drum and rotated according to the conveyance of the workpiece, so that the sewing machine blades are processed during machining. Because it is pressed from the surface contact position to the receiving drum, the impact on the sewing machine blade can be reduced and the wear and wear can be reduced even when the sewing machine line is selectively formed on the workpiece. It is.

  Hereinafter, the best embodiment of the present invention will be described with reference to the drawings. In the present embodiment, the workpiece is described as paper (paper), but it can also be applied to films and metal foils. In addition, although described here as a sheet workpiece (paper), the present invention can be similarly applied to continuous paper that is cut into sheets later.

  In FIG. 1, the conceptual block diagram of the sewing machine wire processing apparatus which implement | achieves the sewing machine wire processing method which concerns on this invention is shown. In FIG. 1 (A), the sewing machine wire processing apparatus 11 is provided with a movable body 13A at the tip of a cylinder rod 13 connected to a cylinder (a broken line portion in the figure) provided in an air cylinder 12 as a pressing means. Although illustration of a drive control unit for the main body of the air cylinder 12 is omitted, air control to the cylinder main body by the drive control unit is performed from two ports 14 and 15, for example. For example, when the compressed air is sent from the port 14, the piston rod 13 extends (lowers) from the main body, and the control is released (described later) when the port is released. Here, the port 15 is always open.

  A movable sewing blade 16 is attached to the movable body 13A by a bearing or the like. Here, the sewing machine blade 16 is not forcibly driven (the rotation state will be described later). The sewing machine blade 16 is disposed so as to face an anvil (anvil) 17 as a receiving cylinder, and the anvil 17 can be rotated by a drive unit 18. Here, the sheet 19 is also transported by the transport means (not shown) upstream and downstream of the anvil 17. The anvil 17 is, for example, an iron cylinder or column and has a hard chrome plated surface. The sewing machine blade 16 has a sharp edge shape in the drawing, but is not limited to this, and may be linear or arcuate.

  That is, the sewing machine blade 16 is brought into contact with the sheet 19 conveyed on the anvil 17 on the surface of the sheet 19 and is rotated by a so-called rotation according to the conveyance of the sheet 19. In detail, when not being processed, the sewing blade 16 is rotated around the surface of the paper 19 to be conveyed without forming a sewing line by contact (see FIG. 1B), and at the time of processing (the sewing blade 16 is attached to the paper 19). In the state of being digged in, the sewing machine line 19A is formed as shown in FIG.

  For example, assuming that the thickness of the sheet 19 is 80 μm, the ports 14 and 15 are opened when not being processed, and the sewing blade 16 includes a cylinder in the air cylinder 12, a piston rod 13, a movable body 13 </ b> A, The total weight of the sewing machine blade 16 itself is brought into contact with the surface of the paper 19. For example, the cylinder and the piston rod 13A are made of aluminum, the sewing blade 16 is made of stainless steel, and the total weight is set to 200 g to 300 g, so that the surface of the paper 19 can be rotated without being damaged.

  On the other hand, when the compressed air is introduced from the port 14 at 0.5 MPa, for example, the sewing blade 16 is set to a pressing force of 3 kg weight to 5 kg weight that presses against the paper sheet 19, so It is possible to reach the anvil 17 by biting in the thickness direction of 19. In this state, according to the rotation of the anvil 17 and the conveyance of the paper 19, the sewing blade 16 is rotated to form the sewing wire 19A. Here, the time of processing for forming the sewing machine line 19A is a concept including immediately before the sheet 19 is carried onto the anvil 17 (between the anvil 17 and the rotary blade 16) when the sheet 19 is a sheet. is there.

  Here, FIG. 2 shows an explanatory diagram of cylinder control of the sewing line machining in FIG. 1, and FIG. 3 shows a state explanatory diagram of the sewing blade in the sewing machine machining of FIG. In FIG. 2, for example, when the sheet 19-1 is not machined, the port 14 is opened, and the sewing blade 16 is placed on the surface of the sheet 19-1 by its own weight as shown in FIG. In the contact state, according to the sheet 19-1 conveyed on the anvil 17, the sheet 19-1 is rotated by rotation without damaging the surface.

  In addition, when the sheets 19-2 and 19-3 are to be machined, the sewing blade 16 is pressed by supplying compressed air to the port 14 as described above, as shown in FIG. As a result, the sheet 19-2 (19-3) bites in the thickness direction and reaches the anvil 17. In this state, according to the rotation of the anvil 17 and the conveyance of the paper 19-2 (19-3), the sewing machine blade 16 is rotated to form the sewing machine wire 19A. The cylinder control is repeated depending on whether or not the sheet 19 is a processing target for non-processing and processing in the machine line forming processing.

  As described above, since the sewing blade 16 is pressed from the surface contact position of the paper 19 to the anvil 17 at the time of processing, the impact on the sewing blade 16 can be reduced even when the sewing machine line is selectively formed on the paper 19. It is possible to reduce wear and wear. Further, since the sewing blade 16 is pressed against the paper 19 (the surface of the anvil 17) at the time of sewing line processing, it is possible to prevent the occurrence of unevenness of the sewing machine due to the eccentricity of the cross section of the anvil 17. Furthermore, although it is known that the sewing machine line is formed by laser processing, it can be made cheaper than a laser processing apparatus.

  By the way, when the sheet 19 is a sheet, the sewing blade 16 is brought into contact with the surface of the anvil 17 due to its own weight between the conveyed sheets, and the sewing blade 16 is also rotated by the rotation of the anvil 17. Rotate in state. That is, in this state, even when the paper 19 is carried between the unmachined sewing blade 16 and the anvil 17, the sewing blade 16 is rotated at a rotational speed corresponding to the conveyance speed of the paper 19. Therefore, the formation of scratches on the surface of the paper 19 can be prevented.

  Further, when the sheet 19 is processed, the air cylinder 12 is pressed against the sewing blade 16 immediately before the sheet 19 is loaded onto the anvil 17 (between the anvil 17 and the rotary blade 16). It is good. By avoiding the time lag of the pressing state of the sewing blade 16 from the pressing control by the air cylinder 12, the sewing machine wire 19A can be reliably formed from the beginning of the processing on the paper 19. In this sense, the air control is the same even when the time lag is taken into consideration.

  Next, FIG. 4 and FIG. 5 show other conceptual configuration diagrams of a sewing machine for realizing the sewing wire processing method according to the present invention. The sewing machine processing apparatus 11 shown in FIG. 4 has an air cylinder 12 provided with a spring 21 as an adjusting means so as to enclose a piston rod 13A, for example, between a main body and a movable body 13A. The spring 21 biases the sewing blade 16 in the opposite direction (upward in the figure) to the paper 19 by the spring 21 when the sewing blade 16 is brought into contact with the surface of the paper 19 when not being processed. It is something to be made. That is, the spring 21 lifts the sewing machine blade 16. Conversely, the sewing blade 16 may be biased toward the paper 19 side (anvil 17 side) by the spring 21.

  Thus, when the sewing blade 16 is brought into contact with the surface of the paper 19 when not being processed, the sewing blade 16 is prevented from scratching the paper 19 and the lifting of the sewing blade 16 is prevented. Therefore, it is possible to easily adjust its own weight for the purpose. Further, in the pressing during processing, the impact of contact with the anvil 17 of the sewing machine blade 16 can be reduced by facilitating the adjustment of its own weight by urging the sheet 19 or the opposite side of the sheet 19.

  The adjusting means is not limited to a spring but may be an elastic member such as rubber (including natural and synthetic), and the same effect can be obtained by supplying air using the port 15 of the air cylinder 12. (In this case, the pressing means includes the adjusting means). Further, similarly to the above, the sewing blade 16 is brought into contact with the surface of the anvil 17 between the conveyed sheets (non-processed state), and the sewing blade 16 is also rotated by the rotation of the anvil 17. It is good.

  Further, the sewing machine processing apparatus 11 shown in FIG. 5 has a drive unit that rotates the sewing machine blade 16 in synchronization with the conveyance (rotation) of the paper 19 (anvil 17) when the sewing machine line is not processed or processed on the paper 19. 31 is provided in the movable body 13A.

  That is, depending on the accuracy of the bearing in which the sewing machine blade 16 is rotatably provided on the movable body 13A, the manufacturing accuracy of the movable body 13A, and the use of two bearings, misalignment occurs in the fitting with the shaft of the sewing machine blade 16. In view of this, there is a case where the rotation during non-processing may not be performed smoothly, and the surface of the paper 19 may be damaged. It is possible to prevent the 19 from being scratched and to further facilitate its own weight adjustment.

  As shown in FIG. 4, the spring 21 can be used together. Further, similarly to the above, the sewing blade 16 is brought into contact with the surface of the anvil 17 between the conveyed sheets (non-processed state), and the sewing blade 16 is also rotated by the rotation of the anvil 17. It is good.

  The sewing line processing method of the present invention can be used for manufacturing a sewing line formed in the transport direction on a single wafer to be transported or a continuous workpiece.

It is a conceptual lineblock diagram of a sewing machine processing device which realizes a sewing machine processing method concerning the present invention. It is explanatory drawing of the cylinder control of the sewing machine line processing in FIG. It is a state explanatory drawing of the sewing machine blade in the sewing machine wire processing of FIG. It is another conceptual block diagram (1) of the sewing machine which implement | achieves the sewing wire processing method which concerns on this invention. It is another conceptual block diagram (2) of the sewing machine which implement | achieves the sewing wire processing method which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Sewing machine 12 Air cylinder 13 Piston rod 13A Movable body 14,15 Airport 16 Sewing blade 17 Anvil 18, 31 Drive part 19 Paper 21 Spring

Claims (4)

A rotatable sewing blade is disposed opposite to the rotatable receiving cylinder, and processing is performed to selectively form a sewing line with the sewing blade in the conveying direction on the workpiece conveyed on the receiving cylinder. A sewing wire processing method,
At the time of non-processing, the sewing machine blade is brought into a contact state on the surface of the workpiece, and is rotated according to conveyance of the workpiece.
At the time of processing, the sewing machine blade is pressed by the pressing means from the non-processed state to the receiving cylinder in the thickness direction of the workpiece, and rotated according to the conveyance of the workpiece, thereby forming the sewing machine wire. Formed,
The non-processing and processing are selectively performed depending on whether or not the workpiece is a processing target.
A sewing wire processing method characterized by the above.   The sewing machine processing method according to claim 1, wherein when the non-machining sewing machine blade is brought into contact with the surface of the workpiece, the sewing machine blade is adjusted to the workpiece side or opposite by an adjusting means. A sewing wire processing method characterized by biasing in a direction.   The sewing machine processing method according to claim 1 or 2, wherein the sewing blade is rotated in synchronism with the conveyance of the workpiece by the driving means in the non-machining or processing of the workpiece. A characteristic sewing machine processing method.   The sewing machine processing method according to at least one of claims 1 to 3, wherein when the workpiece is not conveyed on the receiving drum, the sewing machine blade is brought into contact with the receiving drum and A sewing wire processing method, wherein the sewing wire is rotated according to the rotation of the receiving drum.

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