JP6000645B2 - Buffer device - Google Patents

Description

  The present invention relates to a film, a film-like object such as a metal foil, a woven fabric, paper, a tape, and an adhesive tape, or a plate (such as a glass substrate for liquid crystal) or a metal plate (metal strip) (such as a printed circuit board). (Hereinafter, these are collectively referred to simply as a film-like material).

  A buffer device that temporarily accumulates the film-like material and adjusts the flow is disposed on a line that continuously conveys the film-like material (see, for example, Patent Document 1). The buffer device is provided with a movable roll and a fixed roll around which the film-like material is wound, and temporarily stores the film-like material between the movable roll and the fixed roll.

  Specifically, the buffer device can store the film-like material supplied from the previous process in a folded manner between the fixed roll and the movable roll, and can discharge the accumulated film-like material to the subsequent process. . And a buffer apparatus adjusts the accumulation | storage amount of a film-like thing by raising / lowering a movable roll. According to such a buffer device, even when the film-like material is not supplied from the previous process due to the connection work of the film-like material, the accumulated film-like material is supplied to the subsequent process at a constant speed ( Discharge).

Japanese Patent Laid-Open No. 08-090038 (see paragraphs [0003], [0004] and FIG. 4)

  However, in the case of the buffer device described above, scratches and wrinkles occur on the film-like material due to friction with the movable roll that moves up and down.

  The present invention has been made in view of the above problems, and an object thereof is to provide a buffer device that adjusts the flow of a film-like object without generating scratches or wrinkles.

  (1) The present invention is arranged on a line that continuously conveys a film-like material and enables accumulation of the film-like material supplied from the previous process, and the accumulated film-like material is post-processed. A buffer device for adjusting the flow of the film-like material, wherein the film-like material is wound around and floated by air pressure (particularly, static pressure). A moving mechanism that increases or decreases the amount of the film-like material located between the levitation members by moving at least a part of the levitation members and the plurality of levitation members to expand or contract the interval between the levitation members. And a buffer device.

  According to this invention, the flow of a film-like thing can be adjusted by increasing / decreasing the quantity of the film-like thing located between levitation members. For example, even if the film-like material is not supplied from the previous process due to the connection work of the film-like material in the previous process, the accumulated film-like material can be discharged to the subsequent process at a constant speed.

  The film-like object is not rubbed with the moving levitation member, and a moment is not applied, so that the film-like object is prevented from being damaged or wrinkled. That is, the flow of the film-like material can be adjusted without generating scratches or wrinkles.

  (2) In the present invention, as the plurality of levitation members, one or more first levitation members that fold back the film-like material conveyed in the first direction in the second direction, and the one conveyed in the second direction. The buffer device according to (1), wherein the film-like material is folded in a zigzag manner by including at least one second levitation member that folds the film-like material in the first direction. is there.

  According to the said invention, a film-like thing can be accumulate | stored compactly.

  (3) In the present invention, the moving mechanism may move the first levitation member at a location located in the first direction rather than a location where the second levitation member is located, thereby expanding and contracting the interval. The first levitation member is moved to a location located in the second direction rather than the location where the second levitation member is located, and the film-like material is passed from the pre-process side to the post-process side. The buffer device according to (2) above, wherein

  According to the said invention, a floating member can be easily evacuated from the location which lets a film-like material pass. That is, it is possible to easily pass the film-like material from the pre-process side to the post-process side (so-called paper passing).

  (4) The present invention is also arranged on the side of the previous step relative to the plurality of levitation members, and transports the film-like material supplied from the previous step while adsorbing the film-like material. It is a buffer apparatus in any one of said (1)-(3) characterized by including the suction roller which adjusts.

  According to the above invention, the tension applied to the film-like object can be adjusted before and after the suction roller. That is, the tension applied to the film-like object can be cut before and after the suction roller. Thereby, even when unnecessary tension is applied to the pre-process side of the suction roller in the film-like object, the unnecessary tension can be prevented from being applied to the film-like object in the buffer device. As a result, the flow of the film can be adjusted smoothly.

  (5) The present invention is also arranged on the side of the post-process from the plurality of levitation members, and transports the film-like product discharged to the post-process while adsorbing the film-like product. The buffer device according to any one of (1) to (4), further comprising a suction roller that adjusts the pressure.

  According to the above invention, the tension applied to the film-like object can be adjusted before and after the suction roller. That is, the tension applied to the film-like object can be cut before and after the suction roller. Thereby, even if unnecessary tension is applied to the downstream side of the suction roller in the film-like object, the unnecessary tension can be prevented from being applied to the film-like object in the buffer device. As a result, the flow of the film can be adjusted smoothly.

  (6) The present invention also includes a sensor for measuring the air pressure applied to the film-like material, and converts the measurement result of the sensor into a tension applied to the film-like material, and based on the conversion result, the suction The buffer according to (4) or (5), further comprising a control unit that adjusts the tension of the film-like material by controlling the rotational speed of the roller or the moving speed of the floating member. Device.

  According to the said invention, the tension | tensile_strength of the film-like thing in a buffer apparatus can be adjusted, feeding back the measurement result of a sensor.

  According to the buffer device described in the above (1) to (6) of the present invention, the flow of the film-like object can be adjusted without generating scratches or wrinkles.

It is a front view of the buffer device concerning the present invention. It is a side view of a buffer apparatus. It is a figure explaining the accumulation | storage amount of the film-like thing in a buffer apparatus. It is a front view of the buffer apparatus explaining paper passing of a film-like thing. It is a block diagram which shows the function structure of a control unit.

  Hereinafter, a buffer device according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to the configuration of the buffer device 1 described in the following embodiment.

  First, the configuration of the buffer device 1 will be described with reference to FIGS. FIG. 1A is a front view of the buffer device 1. FIG. 1B is a side view of the buffer device 1. FIG. 2 is a diagram for explaining the accumulation amount of the film-like object XA1 in the buffer device 1. FIG. 3 is a front view of the buffer device 1 for explaining the sheet passing of the film-like object XA1. FIG. 4 is a block diagram showing a functional configuration of the control unit 16. In each of the drawings, illustration of some components is omitted as appropriate for simplification of the drawings.

  The buffer device 1 shown in FIGS. 1A and 1B is arranged on a line that continuously conveys the film-like object XA1, and temporarily accumulates the film-like object XA1 to adjust the flow. According to this buffer device 1, even if the film-like object XA1 is not supplied from the previous process due to the connection work of the film-like object XA1, etc., the accumulated film-like substance is discharged to the subsequent process at a constant speed. it can.

  Specifically, the buffer device 1 includes a plurality of turn bars 10 and 11 around which the film-like object XA1 supplied from the previous process is wound, and air pressure (particularly, static pressure) on the surfaces of the plurality of turn bars 10 and 11. An air pressure applying mechanism 12 to be applied, a moving mechanism 13 for increasing / decreasing the amount of the film-like object XA1 positioned between the turn bars 10 and 11, and a suction roller disposed on the front side of the plurality of turn bars 10 and 11 14, a suction roller 15 disposed on the side of a later process than the plurality of turn bars 10 and 11, a sensor (not shown), and a control unit 16 (see FIG. 4).

  Each part of the buffer device 1 is controlled centrally by the control unit 16. That is, each part of the buffer device 1 operates under the control of the control unit 16, and the operation status is managed by the control unit 16.

  The plurality of turn bars 10 and 11 are alternately arranged so that the film-like object XA1 to be wound is zigzag-shaped so as to be horizontal and parallel to each other.

  The plurality (six in this embodiment) of turn bars 10 are fixed so as not to move so that each of them has the same height. The plurality of turn bars 10 folds the film-like object XA1 transported downward (second direction) upward (first direction).

  However, the turn bar 10 on the most previous process side (the rightmost side in FIG. 1A) folds the film-like object XA1 conveyed horizontally from the guide roller 17 attached to the suction roller 14 upward (first direction). Further, the turn bar 10 on the most subsequent process side (the leftmost side in FIG. 1A) horizontally moves the film-like object XA1 conveyed downward (second direction) toward the guide roller 18 attached to the suction roller 15. Wrap it so that

  The plurality of (in this embodiment, five) turn bars 11 are arranged so as to be movable up and down so that each has the same height. The plurality of turn bars 11 folds the film-like object XA1 conveyed upward (first direction) downward (second direction).

  A plurality of holes penetrating the inside and the outside are formed on the surfaces of the plurality of turn bars 10 and 11, and the air pressure applied by the air pressure application mechanism 12 between the film-like object XA1 to be wound (in particular, (Static pressure) is generated. Thereby, the plurality of turn bars 10 and 11 levitates the film-like object XA1 to be wound by air pressure (particularly, static pressure). For details of the structure in which the film-like object XA1 is levitated by air pressure (particularly, its static pressure), refer to, for example, Japanese Patent Application Laid-Open No. 08-245028.

  In addition, the some turn bar 10 respond | corresponds to the 2nd floating member in a claim. And the some turn bar 11 respond | corresponds to the 1st floating member in a claim. For details of the turn bars 10 and 11, refer to, for example, JP 2009-046272 A, JP 08-245028 A, and the like.

  The air pressure application mechanism 12 includes a pair of air manifolds (air distributors) 19 and 20 that temporarily receive compressed air supplied from a blower (not shown), and a plurality of compressed air received in one air manifold 19. An air supply pipe 21 that sends out to each of the turn bars 10 and an air supply pipe 22 that sends out compressed air received by the other air manifold 20 to each of the plurality of turn bars 11 are provided. The air pressure application mechanism 12 delivers compressed air supplied from the blower to each of the plurality of turn bars 10 and 11, and receives air pressure (particularly, its static pressure) from a plurality of holes formed on the surfaces of the plurality of turn bars 10 and 11. ) So that it occurs.

  The moving mechanism 13 raises and lowers the plurality of turn bars 11, which are a part of the plurality of turn bars 10, 11, at a location located above (in the first direction) the location where the plurality of turn bars 10 are located. The interval between 10 and 11 is enlarged or reduced. Thereby, the moving mechanism 13 increases or decreases the amount of the film-like object XA1 located between the turn bars 10 and 11 (see FIGS. 2A and 2B).

  Further, the moving mechanism 13 moves the plurality of turn bars 11 to a position located below (second direction) from the position where the plurality of turn bars 10 are located, and moves the film-like object XA1 from the previous process side to the subsequent process side. (See also FIG. 3).

  Specifically, the moving mechanism 13 includes a pair of rails 25, 26 arranged in the vertical direction, a pair of sliders 27 that move up and down along the pair of rails 25, and a pair of lifts up and down along the pair of rails 26. A slider 28 and a ball screw (not shown) for applying the power to move up and down are provided.

  The pair of rails 25 are disposed on one end side (the front side in FIG. 1A and the left side in FIG. 1B) of the plurality of turn bars 10 and 11. The pair of rails 26 are disposed on the other end side of the plurality of turn bars 10 and 11 (the back side in FIG. 1A and the right side in FIG. 1B).

  The air manifold 20 is attached to the pair of sliders 27 via attachments 29 and 30. As a result, the air manifold 20 is bridged up and down with respect to the pair of rails 25. An attachment plate 31 is attached to the pair of sliders 28. As a result, the mounting plate 31 is bridged up and down with respect to the pair of rails 26.

  One end of the plurality of turn bars 11 is attached to the air manifold 20 via the air supply pipe 22, and the other end of the plurality of turn bars 11 is attached to the attachment plate 31 via the attachment bar 32. As a result, the plurality of turn bars 11 are bridged between the air manifold 20 and the mounting plate 31 so as to be movable up and down.

  According to the moving mechanism 13 described above, a plurality of turn bars 11 can be moved up and down integrally by applying power with a ball screw and moving the two pairs of sliders 27 and 28 to have the same height.

  The suction roller 14 adjusts the tension of the film-like object XA1 by conveying the film-like object XA1 supplied from the previous process while adsorbing it with a negative pressure.

  The suction roller 15 adjusts the tension of the film-like object XA1 by conveying the film-like object XA1 discharged to the subsequent process while adsorbing it with a negative pressure.

  The sensor (not shown) is a device that measures the air pressure applied by the turn bar 11. Specifically, the sensor is attached to one turn bar 11 located in the center, and measures the air pressure on the surface of the turn bar 11. Then, the sensor outputs the measurement result as a signal. For details of the sensor, refer to, for example, Japanese Patent No. 4575533.

  The control unit 16 (see FIG. 4) includes a CPU, a RAM, a ROM, and the like (all not shown), and executes various controls. The CPU is a so-called central processing unit, and various programs are executed to realize various functions. The RAM is used as a work area for the CPU. The ROM stores programs executed by the CPU and various data.

  As shown in FIG. 4, the control unit 16 includes a sensing unit 34, a drive control unit 35, and the like as functional configurations after executing the program.

  The sensing unit 34 always acquires the measurement result (sensing data) of the sensor and transmits it to the drive control unit 35. The drive control unit 35 converts the measurement result acquired by the sensing unit 34 into a tension applied to the film-like object XA1. And the drive control part 35 controls the rotational speed of the suction rollers 14 and 15 and the moving speed of the turn bar 11 so that the tension | tensile_strength applied to the film-like object XA1 becomes a desired value based on the conversion result. Note that the conversion by the drive control unit 35 is performed based on conversion value data (conversion table) stored in advance in the ROM.

  Next, the flow of the film-like object XA1 in the buffer device 1 will be described with reference to FIGS. 1A, 2A, and 2B.

  As shown in FIG. 1A, the film-like object XA1 conveyed from the previous process is supplied into the buffer device 1 via the suction roller 14 and the guide roller 17.

  Then, the film-like object XA1 supplied into the buffer device 1 is spelled and accumulated by the plurality of turn bars 10 and 11.

  Further, the film-like material XA1 accumulated in the buffer device 1 is discharged to a subsequent process via the guide roller 18 and the suction roller 15.

  When the amount of the film-like material XA1 supplied from the previous process is smaller than the amount of the film-like material XA1 discharged to the subsequent process, the flow of the film-like material XA1 is adjusted by moving the turn bar 11 downward. (See FIG. 2 (A) → FIG. 2 (B)).

  On the other hand, when the amount of the film-like object XA1 supplied from the previous process is larger than the amount of the film-like object XA1 discharged to the subsequent process, the flow of the film-like object XA1 is adjusted by moving the turn bar 11 upward. (See FIG. 2 (B) → FIG. 2 (A)).

  Thus, according to the buffer apparatus 1, the flow of the film-like object XA1 can be adjusted by increasing / decreasing the amount of the film-like object XA1 located between the turn bars 10, 11. For example, even if the film-like object XA1 is not supplied from the previous process by connecting the film-like object XA1 in the previous process, the accumulated film-like object can be discharged to the subsequent process at a constant speed.

  Further, the film-like object XA1 is not rubbed with the moving turn bar 11, and no moment is applied, and the film-like object XA1 is prevented from being scratched or wrinkled. That is, the flow of the film-like object XA1 can be adjusted without generating scratches or wrinkles.

  In addition, a plurality of turn bars 10 that folds the film-like object XA1 conveyed downward and a plurality of turn bars 11 that folds the film-like object XA1 conveyed upward downward are alternately arranged. Therefore, the film-like product XA1 can be folded in a zigzag manner. Thereby, the film-like object XA1 can be accumulated compactly.

  Furthermore, since the plurality of turn bars 11 can be moved below the plurality of turn bars 10, the plurality of turn bars 11 can be easily retracted from the place through which the film-like object XA1 passes. That is, it is possible to easily pass the film-like material XA1 from the previous process side to the subsequent process side (so-called paper passing).

  And since the suction roller 14 is arrange | positioned at the side of a front process rather than the some turn bars 10 and 11, the tension | tensile_strength (tension) applied to the film-form XA1 can be cut before and behind the said suction roller 14. FIG. Thereby, even if an unnecessary tension is applied to the pre-process side of the suction roller 14 in the film-like object XA1, the unnecessary tension can be prevented from being applied to the film-like object in the buffer device 1. As a result, the flow of the film-like object XA1 can be adjusted smoothly.

  Further, since the suction roller 15 is disposed on the side of the post process with respect to the plurality of turn bars 10 and 11, the tension applied to the film-like object XA1 can be cut before and after the suction roller 15. Thereby, even when unnecessary tension is applied to the downstream side of the suction roller 15 in the film-like object XA1, it is possible to prevent the unnecessary tension from being applied to the film-like object in the buffer device 1. As a result, the flow of the film-like object XA1 can be adjusted smoothly.

  Furthermore, since the sensor for measuring the air pressure converted into the tension of the film-like object XA1 is provided, the tension of the film-like object XA1 in the buffer device 1 can be adjusted while feeding back the measurement result.

  The present invention is not limited to the above-described embodiments and application examples, and various modifications can be made without departing from the spirit and technical idea thereof.

  That is, in the above embodiment, the position, size, shape, material, orientation, quantity, and the like of each component can be changed as appropriate.

  For example, the number of turn bars 10, 11 and the direction in which they are arranged can be mentioned. By increasing the number of turn bars 11 to be moved, the amount of the film-like object XA1 positioned between the turn bars 10 and 11 can be rapidly increased or decreased. That is, when the number of turn bars 11 to be moved is 10, the amount of the film-like object XA1 located between the turn bars 10 and 11 as compared to the above embodiment in which the number of turn bars 11 to be moved is five. Can be increased or decreased twice as fast.

  Or although all the turn bars 11 are moved in the said embodiment, this invention is not limited to this, It is good also as a structure to which one or more turn bars 11 are moved.

  Or in the said embodiment, it is good also as a structure which not only moves the some turn bar 11, but moves one or more turn bars 10. FIG. In this case, it is only necessary that the interval between the turn bars 10 and 11 can be enlarged and reduced, and the direction and speed of moving the turn bars 10 and 11 are not limited.

  However, the direction in which the turn bar 10 is moved and the direction in which the turn bar 11 is moved are preferably opposite to each other. That is, when the turn bar 10 is moved upward, the turn bar 11 is preferably moved downward to reduce the interval between the turn bars 10 and 11. Further, when the turn bar 10 is moved downward, it is preferable to move the turn bar 11 upward to enlarge the interval between the turn bars 10 and 11. Thereby, compared with the said embodiment, the quantity of the film-form XA1 located between turn bars 10 and 11 can be increased / decreased rapidly.

  Alternatively, in the above-described embodiment, one or both of the suction rollers 14 and 15 may not be provided.

  Alternatively, in the above-described embodiment, the moving mechanism 13 moves the plurality of turn bars 11 to the lower side of the plurality of turn bars 10 to retract from the film-like object XA1, and moves the film-like object XA1 from the previous process side to the subsequent process. However, the present invention is not limited to this. In other words, the plurality of turn bars 11 may not be moved to the lower side of the plurality of turn bars 10.

  Or in the said embodiment, it is good also as a structure which is not provided with the sensor.

1 Buffer device 10, 11 Turn bar (floating member)
13 Moving mechanism 14, 15 Suction roller XA1 Film

Claims (4)

It is arranged on a line that continuously conveys the film-like material, and allows the film-like material supplied from the previous process to be accumulated and enables the accumulated film-like material to be discharged to the subsequent process. A buffer device for adjusting the flow of the film-like material,
A plurality of levitation members on which the film-like material is wound and levitate the film-like material by air pressure;
A moving mechanism that increases or decreases the amount of the film-like material positioned between the levitation members by moving at least a part of the plurality of levitation members and expanding or reducing the interval between the levitation members;
A suction roller that adjusts the tension of the film-like material by adhering the film-like material that is disposed on the side of the previous process from the plurality of floating members and adsorbs the film-like material supplied from the previous process;
A sensor for measuring the air pressure applied to the film-like object;
The measurement result of the sensor is converted into the tension applied to the film-like object, and the rotation speed of the suction roller or the moving speed of the floating member is controlled based on the conversion result, and the tension of the film-like object is changed. Control means to adjust;
Characterized by comprising,
Buffer device. It is arranged on a line that continuously conveys the film-like material, and allows the film-like material supplied from the previous process to be accumulated and enables the accumulated film-like material to be discharged to the subsequent process. A buffer device for adjusting the flow of the film-like material,
A plurality of levitation members on which the film-like material is wound and levitate the film-like material by air pressure;
A moving mechanism that increases or decreases the amount of the film-like material positioned between the levitation members by moving at least a part of the plurality of levitation members and expanding or reducing the interval between the levitation members;
A suction roller that adjusts the tension of the film-like material by conveying it while adsorbing the film-like material that is disposed on the side of the later process than the plurality of levitation members and is discharged to the subsequent process;
A sensor for measuring the air pressure applied to the film-like object;
The measurement result of the sensor is converted into the tension applied to the film-like object, and the rotation speed of the suction roller or the moving speed of the floating member is controlled based on the conversion result, and the tension of the film-like object is changed. Control means to adjust;
Characterized by comprising,
Buffer device. As the plurality of levitation members, one or more first levitation members that fold back the film-like material conveyed in the first direction in the second direction, and the film-like material conveyed in the second direction in the first direction One or more second levitation members that are folded back into, and characterized in that the film-like material is folded into a zigzag shape,
The buffer device according to claim 1 or 2 . While the moving mechanism moves the first levitation member at a location located in the first direction rather than a location where the second levitation member is located, the first levitation member is expanded and contracted. It moves to the location located in the 2nd direction rather than the location where the 2nd levitation member is located, and makes it possible to let the film-like thing pass from the side of the previous process to the side of the back process. To
The buffer device according to claim 3 .

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