JP5536505B2 - Paper processing unit and paper processing apparatus provided with the paper processing unit - Google Patents

Description

  The present invention relates to a paper processing unit and a paper processing apparatus including the paper processing unit that perform processing such as cutting and folding mold formation on paper.

  In the guillotine cutter device shown in Patent Document 1 that cuts a sheet by an upper blade that moves up and down with respect to a fixed lower blade, conventionally, the sheet is cut and moved upward with respect to the lower blade. The upper blade is provided with a sensor that is used to determine the timing for applying the brake.

JP 2005-239212 A

  Here, in the process of cutting the next sheet after cutting a certain sheet, the next sheet is transported after a gap between the upper blade and the lower blade that allows the sheet to pass therethrough is formed. Therefore, the position of the upper blade is detected by the sensor so that the next paper can be sent to the cutter device in a state where the paper can surely pass through the gap between the upper blade and the lower blade. After applying the brake to the moving upper blade, after 70 msec in total, which is an estimated time (for example, 50 msec) until the upper blade is positioned at the uppermost portion and adding an extra time (for example, 20 msec), the next paper is cut by the cutter device. I was trying to send it to. For this reason, in the sheet cutting process, waste is generated for the margin time.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to improve sheet processing efficiency by eliminating a margin time that is taken into account in order to reliably form a gap between an upper blade and a lower blade.

  1st invention of this application is a paper processing unit which processes a conveyed paper by pinching | interposing between a movable member and a fixed member, Comprising: The moving means to move the said movable member so that it may contact / separate with respect to the said fixed member, First detecting means for detecting a position of the movable member for causing the movable member moving in a direction away from the fixed member to detect the position of the movable member, the movable member, and the fixed member And a second detecting means for detecting that a gap through which a sheet can pass is formed.

  According to the above configuration, since the second detection unit detects that a gap through which the sheet can pass is formed between the movable member and the fixed member, the gap between the movable member and the fixed member is surely secured. It is no longer necessary to allow time for the sheet to be formed, and the paper processing efficiency can be improved.

The present invention preferably further comprises the following configuration.
(1) After the first detection means detects the position of the movable member, after a predetermined time has elapsed, a stop operation is performed for the movement of the movable member in a direction away from the fixed member. ing.
(2) The movable member and the fixed member are provided such that opposite end portions thereof have an angle with each other, a plurality of the second detection means are provided, and any of the plurality of second detection means is provided. One of them is configured to detect that the length of the gap in the direction perpendicular to the paper conveyance direction is formed by the length of the fixing member in the direction perpendicular to the paper conveyance direction, The rest of the second detection means detects that the length of the gap in the direction orthogonal to the paper transport direction is formed by the length of the paper width according to the paper width of the paper to be processed. It is supposed to be.
(3) The first detection unit and the second detection unit are optical sensors each having a light emitting unit and a light receiving unit.

  The stop position of the movable member after the stop operation may be different depending on the braking performance of the movable member of the paper processing unit (that is, the difference in the moving distance of the movable member after the stop operation is performed). It is done. According to the configuration (1), the stop position of the movable member is adjusted to a fixed position (usually, the position farthest from the fixed member) by causing the stop operation to be performed after a predetermined time has elapsed after detecting the movable member. be able to

  Depending on the width of the transported paper, some paper passes through the entire length of the fixing member, and other paper passes through the partial length of the fixing member. According to the configuration (2), since the movable member and the fixed member are provided so that the opposite end portions have an angle with each other, the gap between the movable member and the fixed member in the direction orthogonal to the paper transport direction. (Length) is different. Since the remaining of the second detection means confirms that a gap is formed by the length of the paper width for the paper to pass through, the paper processing efficiency can be further improved.

  According to said structure (3), a 1st detection means and a 2nd detection means can be comprised easily.

  A second invention of the present application includes the paper processing unit of the first invention and a transport unit that transports the paper to the paper processing unit, and the transport unit detects the gap when the second detection unit detects the gap. A paper processing apparatus configured to convey paper to the gap.

  According to the above configuration, since the sheet is transported after the gap between the movable member and the fixed member is confirmed, it is possible to reliably prevent an event that the sheet is transported without a sufficient gap and the sheet is jammed. it can. In addition, it is not necessary to allow time for the gap between the movable member and the fixed member to be reliably formed, and the paper processing unit is provided with improved paper processing efficiency. The processing efficiency of the entire sheet processing apparatus can be improved.

  In short, according to the present invention, it is possible to improve paper processing efficiency.

It is a model longitudinal cross-sectional view of the paper processing apparatus provided with the paper processing unit which concerns on embodiment of this invention. (A) is a figure which shows an example of the paper processed with a paper processing apparatus, (b) is a figure explaining the process of an option process means, (c) is a figure which shows the paper obtained after an option process. (A) is a diagram showing a sheet after the first conveyance direction cutting unit 4A, (b) is a diagram showing a sheet after the second conveyance direction cutting unit 4B, and (c) is a sheet after the third conveyance direction cutting unit 4C. FIG. 4D is a diagram showing the paper after the width direction cutting unit 5, and FIG. 4E is a diagram showing the paper after the folding mold forming unit 7. It is a perspective view of the width direction cutting unit 5. FIG. 5 is a front view of FIG. 4. (A) is the schematic explaining operation | movement of the width direction cutting unit 5, (b) is the schematic explaining operation | movement of the width direction cutting unit 5 after (a), (c) is after (b). Schematic explaining the operation of the width direction cutting unit 5 of FIG. 1, (d) is a schematic diagram explaining the operation of the width direction cutting unit 5 after (c), (e) is a width direction cutting after (d). FIG. 5 is a schematic diagram illustrating the operation of the unit 5. FIG. 5 is a perspective view of a folding mold forming unit 7. FIG. 8 is a front view of FIG. 7. It is a VIIII arrow line view of FIG. FIG. 9 is a sectional view taken along the line XX in FIG. 8.

  FIG. 1 is a schematic longitudinal sectional view showing the entire sheet processing apparatus including a sheet processing unit according to an embodiment of the present invention. The sheet processing apparatus 1 includes a sheet feeding unit 11 including a sheet feeding tray and a sheet discharging unit 12 including a sheet discharge tray at both ends of the apparatus main body 10. From the paper supply unit 11 to the paper discharge unit 12, a conveyance path 20 is configured by a conveyance unit 2 including a large number of pairs of rollers 21. A transport driving unit (not shown) is connected to the transport unit 2. Then, on the conveyance path 20, from the paper feeding unit 11 side, the conveyance correction unit 31, the information reading unit 32, the rejection unit 33, the chip dropping unit 34, the conveyance direction cutting unit 4 for cutting the sheet in the conveyance direction, and the sheet A width direction cutting unit 5 for cutting in a direction (paper width direction) orthogonal to the transport direction and a fold forming unit 7 are provided. The transport direction cutting unit 4 includes a first transport direction cutting unit 4A, a second transport direction cutting unit 4B, and a third transport direction cutting unit 4C that cut sheets in the transport direction. The folding mold forming unit 7 is configured to form a folding mold in the sheet width direction of the sheet. The width direction cutting unit 5 and the folding mold forming unit 7 correspond to an embodiment of the paper processing unit of the present invention. The first transport direction cutting unit 4A, the second transport direction cutting unit 4B, the third transport direction cutting unit 4C, the chip dropping means 34, the width direction cutting unit 5 and the folding mold forming unit 7 are all supported by the apparatus body 10. In addition, processing drive means (not shown) is connected.

  Further, the sheet processing apparatus 1 includes a control means 6 for controlling the operation of the entire apparatus in the apparatus main body 10. The control means 6 has a CPU connected to an operation panel (not shown). The control means 6 also performs control as, for example, a position control means and a machining control means described later. Further, the sheet processing apparatus 1 has a trash box 81 for storing chips generated by cutting a sheet at the bottom of the apparatus main body 10.

  FIG. 2A shows an example of a sheet processed by the sheet processing apparatus 1. A position mark 102 and a barcode 103 are printed on the sheet 100 together with the main printing unit 101. A bar code 103 indicates processing information that is a series of processing contents to be applied to the paper 100.

  The sheet processing apparatus 1 operates as follows.

  First, the sheets 100 are sent one by one from the bundle of sheets 100 placed on the sheet feeding unit 11 to the conveyance path 20 and enter the conveyance correction unit 31. The conveyance correction unit 31 straightens the fed paper 100 if it is slanted, and detects that if two or more sheets are superimposed, stops conveyance of the paper 100. . If the sheet 100 is straight and one sheet, it is transported to the next.

  The next conveyed paper 100 enters the information reading means 32 after the leading edge is detected by the paper leading edge sensor 201. The information reading unit 32 reads the position mark 102 and the barcode 103 on the paper 100 by the CCD sensor 321. This read information is sent to the control means 6. The control means 6 stores the read information and controls each subsequent means based on the read information. For example, the processing information indicated by the bar code 103 indicates that the sheet 100 is cut along the solid lines A, B, C, and D as shown in FIG. When processing is performed to obtain eight sheets 200 with a folding mold 200a as shown in FIG. 2 (c), the subsequent units operate as follows. Note that the paper 100 whose information cannot be read by the information reading unit 32 is dropped into the lower disposal tray 82 by the next rejection unit 33 as being unclear.

  The paper 100 that has passed through the rejecting unit 33 is detected by the paper front end sensor 202 and then enters the first transport direction cutting unit 4A. The first transport direction cutting unit 4A is turned on by the processing control means by the control means 6 and is cut into two solid lines A (FIG. 2B) by the position control means by the control means 6. Each cutter is controlled to be positioned. Accordingly, the paper 100 is cut along the solid line A, that is, in the transport direction by the first transport direction cutting unit 4A, and is transported to the next second transport direction cutting unit 4B in the form of FIG. Is done. The unnecessary portion X1 is dropped into the trash box 81.

  The second transport direction cutting unit 4B is turned on by the processing control means by the control means 6 and is cut into two solid lines B (FIG. 2 (b)) by the position control means by the control means 6. Each cutter is controlled to be positioned. Accordingly, the sheet 100 of FIG. 3A is cut along the solid line B, that is, in the transport direction by the second transport direction cutting unit 4B, and becomes the form of FIG. It is conveyed to the direction cutting unit 4C.

  The third transport direction cutting unit 4C is ON-controlled by the processing control means by the control means 6, and is cut into two solid lines C (FIG. 2B) by the position control means by the control means 6. Each cutter is controlled to be positioned. Accordingly, the sheet 100 of FIG. 3B is cut along the solid line C, that is, in the transport direction by the third transport direction cutting unit 4C, and becomes the form of FIG. It is conveyed to. The unnecessary portion X2 is dropped into the trash box 81 by the next-stage chip dropping means 34.

  Note that the leading edge of the paper 100 in FIG. 3C is detected by the paper leading edge sensor 203 before entering the width direction cutting unit 5.

  The width direction cutting unit 5 is on-controlled by the processing control means by the control means 6. The paper 100 in FIG. 3C stops at each of the cut positions indicated by the three solid lines D (FIG. 2B) while the cut position is detected by the cut position sensor 204, and the width direction The sheet is cut by the cutting unit 5 along the solid line D, that is, in the direction orthogonal to the transport direction, and is transported to the folding mold forming unit 7 in the form of FIG. The unnecessary portion X3 falls to the trash box 81.

  The folding mold forming unit 7 is on-controlled by the processing control means by the control means 6. 3D is stopped each time at the folding position indicated by two alternate long and short dashed lines E while the folding position is detected by the folding position sensor 205, and the folding mold forming unit 7 makes one point. A folding mold 200a is formed along the chain line E, that is, in a direction orthogonal to the conveying direction, and is sent to the paper discharge unit 12 in the form of FIG.

  In the sheet processing apparatus 1, the first to third transport direction cutting units 4 </ b> A to 4 </ b> C, the width direction cutting unit 5, and the folding mold forming unit 7 are detachably provided to the apparatus main body 10.

(First embodiment)
Below, the width direction cutting unit 5 which is one of the embodiments of the present invention will be specifically described.

  FIG. 4 is a perspective view of the width direction cutting unit 5, and FIG. 5 is a front view of FIG. 4 and 5, the Y direction is the paper transport direction, and the Z direction is the paper width direction. The width direction cutting unit 5 includes an upper blade (movable member) 51 and a lower blade (fixed member) 52, and the upper blade 51 and the lower blade 52 are brought into sliding contact with the lower blade 52 by sliding the upper blade 51. The paper between the blade 52 is cut in the paper width direction.

  Below the lower blade 52, a machining drive means (moving means) 53 is provided, and the machining drive means 53 has a motor portion 531 and a gear portion 532 having a plurality of gears. A drive belt 533 is wound around the pulley 531a of the motor unit 531 and the pulley 532a of the gear unit 532, and the pulley 532a is rotated by the rotation of the pulley 531a. When the pulley 532a rotates, the rotating body 534 rotates about the shaft 534a via a plurality of gears. The rotating body 534 and the base end portion 511 of the upper blade 51 are connected by an arm 54. When the rotating body 534 rotates about the shaft 534a, the one end 54a of the arm 54 rotates about the shaft 534a, and the arm 54 rotates about the shaft 534a. As a result, the upper blade 51 moves in the vertical direction with respect to the lower blade 52. The movement of the upper blade 51 in the vertical direction is stopped when the pulley 531a of the motor unit 531 is stopped. The motor unit 531 is stopped by applying an electric brake (regenerative brake) in the motor. Accordingly, the pulley 531a of the motor unit 531 is stopped after a slight rotation after the stop operation (the brake is applied). The upper blade 51 also stops after moving slightly after braking the motor unit 531.

  A first sensor (first detection means) 55 and a second sensor (second detection means) 56 are provided above the base end portion 511 of the upper blade 51. The first sensor 55 and the second sensor 56 are optical sensors having light emitting units 551 and 561 and light receiving units 552 and 562, respectively. A light shielding plate 57 is attached to the upper end of the base end portion 511, and the light shielding plate 57 moves up and down in accordance with the vertical movement of the upper blade 51. In the first sensor 55 and the second sensor 56, the light emitting units 551 and 561 and the light receiving units 552 and 562 are arranged opposite to the light shielding plate 57, respectively. Therefore, the light shielding plate 57 shields the light from the light emitting unit 551 of the first sensor 55, so that the light receiving unit 552 of the first sensor 55 cannot receive the light from the light emitting unit 551. As a result, the first sensor 55 Detects the position of the upper blade 51 with respect to the lower blade 52. The detection method of the second sensor 56 is the same as the detection method of the first sensor 55.

  The first sensor 55 is provided to detect the position of the upper blade 51 for performing a stopping operation (braking) the upward movement of the upper blade 51. On the other hand, the second sensor 56 is provided so as to detect the position of the upper blade 51 where the gap W between the upper blade 51 and the lower blade 52 becomes the gap W1 through which the sheet can pass. That is, the second sensor 56 detects the gap W1 through which the sheet can pass. The position of the upper blade 51 detected by the second sensor 56 is a position farther from the lower blade 52 than the position of the upper blade 51 detected by the first sensor 55.

  The operation of the width direction cutting unit 5 will be described as follows.

  FIG. 6 is a schematic diagram for explaining the operation of the width direction cutting unit 5. First, FIG. 6A shows a state before paper cutting. As shown in FIG. 6A, the paper 100 to be cut is conveyed above the lower blade 52.

  Next, as shown in FIG. 6B, the upper blade 51 descends, the upper blade 51 and the lower blade 52 come into sliding contact, and the paper 100a between the upper blade 51 and the lower blade 52 is cut. The Further, as the upper blade 51 is lowered, the light shielding plate 57 is lowered so as to draw an arc in the R1 direction.

  Next, the upper blade 51 rises. As the upper blade 51 rises, the light shielding plate 57 rises so as to draw an arc in the R2 direction. FIG. 6C shows a state after a predetermined time has elapsed after the tip of the light shielding plate 57 shields the first sensor 55 from light. The front end of the light shielding plate 57 passes through the first sensor 55 but does not reach the second sensor 56. In the state of FIG. 6C, the brake is applied to the upward movement of the upper blade 51.

  Even after the first sensor 55 detects the tip of the light-shielding plate 57, the brake is applied after the predetermined time has elapsed, even if the same width direction cutting unit 5 is used. This is because the moving distance until stopping may be different. Therefore, in order to always stop the upper blade 51 at the position farthest from the lower blade 52, that is, the uppermost position, the first sensor 55 detects the upper blade 51 and then delays the brake application.

  Then, the predetermined time is input to an operation panel (not shown) attached to the apparatus main body 10, and the operation of the width direction cutting unit 5 is controlled, whereby the stop position of the upper blade 51 is moved from the lower blade 52 to the most. It is designed to adjust to a distant position (top position).

  Even if the upward movement of the upper blade 51 is braked, the upper blade 51 does not stop rising immediately, and the upper blade 51 continues to rise in the R3 direction for a certain period of time. Then, as shown in FIG. 6D, the light shielding plate 57 rises in an arc as the upper blade 51 rises, and the tip of the light shielding plate 57 shields the second sensor 56. In the state of FIG. 6D, the second sensor 56 detects that a gap W <b> 1 through which the paper can pass is formed between the upper blade 51 and the lower blade 52, and the next paper 100 b is the upper blade 51. And the lower blade 52 starts to be conveyed.

  Even after the next sheet 100b starts to be conveyed between the upper blade 51 and the lower blade 52, the upper blade 51 continues to rise, and thereafter, as shown in FIG. Stop completely. Then, as the upper blade 51 rises, as shown in FIG. 6D, the light shielding plate 57 rises in an arc in the R4 direction, and after the tip of the light shielding plate 57 passes through the second sensor 56, As shown in FIG. 6E, the light shielding plate 57 is also stopped when the upper blade 51 is stopped.

  Since the next paper 100b has already started to be conveyed between the upper blade 51 and the lower blade 52, the upper blade 51 is used to cut the next paper 100b after the completion of the conveyance and after the upper blade 51 is stopped. Starts moving downwards.

  According to the width direction cutting unit 5 having the above configuration, the following effects can be exhibited.

(1) Conventionally, the second sensor 56 is not provided, and after the upper blade 51 has stopped in the state shown in FIG. As described above, in the width direction cutting unit 5 according to the present invention, the next sheet 100b is transported immediately after the state shown in FIG. In other words, in the present embodiment, the second sensor 56 detects that the gap W1 through which the sheet can pass is formed between the upper blade 51 and the lower blade 52, and thus the upper blade 51 and the lower blade 52. It is no longer necessary to allow time for the gap W1 to be reliably formed, so that the paper transport start timing can be advanced and the paper processing efficiency can be improved.

(2) Since the paper is transported after the gap W1 through which the paper can pass is formed between the upper blade 51 and the lower blade 52, the paper is transported without a sufficient gap, and the paper is jammed. The event can be reliably prevented.

(3) After the first sensor 55 detects the light shielding plate 57, the brake is applied after a predetermined time has elapsed. By adjusting the predetermined time, the stop position of the upper blade 51 is farthest from the lower blade 52. It can be adjusted to the position (top position).

  In the present embodiment, the predetermined time is input to an operation panel (not shown) attached to the apparatus main body 10 and the operation of the width direction cutting unit 5 is controlled to lower the stop position of the upper blade 51. The position can be adjusted to the position farthest from the blade 52 (the highest position). It is possible to adjust the stop position of the upper blade 51 by adjusting the attachment position of the first sensor 55. However, in order to finely adjust the stop position of the upper blade 51, the attachment position of the first sensor 55 Need to be changed by a very small distance, and the position adjustment of the first sensor 55 is very difficult. Therefore, in the present embodiment, as described above, a method of adjusting the predetermined time is adopted. As a result, the stop position of the upper blade 51 can be easily adjusted simply by inputting the predetermined time from the operation panel and controlling the operation of the width direction cutting unit 5.

(4) Since the brake is applied after the predetermined time has elapsed after the first sensor 55 detects the tip of the light shielding plate 57, the time during which the upper blade 51 rises at a high speed before the brake is applied becomes longer. As a result, the time until the tip of the light shielding plate 57 shields the second sensor 56 can be shortened. Accordingly, the paper conveyance start timing can be made earlier, and the paper processing efficiency can be further improved.

(5) Since the first sensor 55 and the second sensor 56 are optical sensors, the detection means can be easily configured. Further, the optical sensor can detect the position of the upper blade 51 as soon as the light receiving portion is shielded, that is, the detection speed is high and the accuracy is high, so that the paper processing efficiency can be further improved.

  In the first embodiment, one second sensor 56 is provided, but a plurality of second sensors may be provided. In this case, it is preferable that one of the plurality of second sensors detect that the gap W1 through which the sheet can pass is formed over the length of the lower blade 52 in the Z direction. If this is done, the upper blade 51 can be used for any paper width (the upper limit is the length of the lower blade 52 in the Z direction) by the sensor detecting the gap W1. And the gap W between the lower blade 52 and the lower blade 52 can be passed. As shown in FIG. 6A, the upper blade 51 and the lower blade 52 are provided so that opposing ends (blade edges) have an angle θ with each other, that is, the blade edge of the upper blade 51 and the lower blade 52 Since the blade 52 is not parallel to the cutting edge, the gap W has a different length in the Z direction. Therefore, it is preferable that the remaining second sensors detect that the gap W1 is formed over the width of the sheet to be processed. In this case, if the gap W1 is formed by the width of the paper to be passed, the paper can be transported, so that the paper transport start timing can be made earlier and the paper processing efficiency can be further improved. In this case, when the gap W1 is detected for each of a plurality of types of paper widths, sensors are provided as many as the number of paper types.

  In the first embodiment, the light shielding plate 57 is attached to the base end portion 511 of the upper blade 51, and the first sensor 55 and the second sensor 56 are provided above the base end portion 511. However, the present invention is not limited to this. Is not to be done. For example, the light shielding plate 57 may be attached to the distal end portion 512 of the upper blade 51, and the first sensor 55 and the second sensor 56 may be provided above the distal end portion 512, and not the distal end portion 512 but the proximal end The light shielding plate 57 may be attached between the portion 511 and the tip portion 512, and the first sensor 55 and the second sensor 56 may be provided above the light shielding plate 57.

(Second Embodiment)
The folding mold forming unit 7 which is one embodiment of the present invention will be specifically described below.

  7 is a perspective view of the folding mold forming unit 7, and FIG. 8 is a front view of FIG. 7 and 8, the Y direction is the paper transport direction, and the Z direction is the paper width direction. 9 is a view taken in the direction of arrow VIIII in FIG. 7, and FIG. 10 is a view taken in the direction of arrow XX in FIG. The folding mold forming unit 7 has an upper mold (movable member) 71 and a lower mold (fixed member) 72, and presses the convex portion 7101 of the upper mold 71 against the concave portion 7201 of the lower mold 72. The folding mold is formed on the sheet between the upper mold 71 and the lower mold 72.

  Two handles 7011 are attached on the top plate 701. The two side plates 702 and 703 are provided vertically downward from both sides of the top plate 701. The upper mold 71 and the lower mold 72 are supported with respect to the side plates 702 and 703. Rotating shafts 721 and 722 are provided between the side plates 702 and 703.

  The rotating shaft 721 is located above the upper mold 71, one end projects from the side plate 702, and has a gear 7211 at the tip. The rotating shaft 721 has eccentric cam plates 7212 and 7213 at both ends in the case portion 700. The eccentric cam plates 7212 and 7213 are opposed to the upper ends 7102 and 7103 of the upper mold 71.

  Here, when driven by a motor (not shown) and the gear 7211 rotates, the rotating shaft 721 rotates and the eccentric cam plates 7212 and 7213 rotate. On the other hand, the upper ends 7102 and 7103 are in contact with the eccentric cam plates 7212 and 7213, and as a result, the upper mold 71 moves up and down following the rotation of the eccentric cam plates 7212 and 7213. That is, the moving means of the upper mold 71 corresponds to the rotating shaft 721, the eccentric cam plates 7212 and 7213, and the gear 7211. When the eccentric cam plates 7212 and 7213 are biased downward, the upper mold 71 moves downward, thereby forming a folding mold on the paper. Further, when the eccentric cam plates 7212 and 7213 are biased upward, the upper mold 71 moves upward. 9 and 10 show a state in which the eccentric cam plates 7212 and 7213 are biased to the uppermost position.

  The rotating shaft 722 is positioned below the lower mold 72, one end projects from the side plate 703, and has a worm wheel 7221 at the tip. The worm wheel 7221 is connected to the worm 7224. The rotating shaft 722 has discs 7222 and 7223 at both ends in the case portion 700. The discs 7222 and 7223 are opposed to the bosses 7202 and 7203 of the lower mold 72.

  A light shielding plate 77 that rotates together with the rotation shaft 721 is attached to the center of the rotation shaft 721 in the Z direction. A third sensor (first detection means) 73 and a fourth sensor (second detection means) 74 are provided below the central portion of the top plate 701 in the Z direction so as to face the light shielding plate 77. The third sensor 73 and the fourth sensor 74 are optical sensors each having a light emitting part and a light receiving part, and the light emitting part and the light receiving part are arranged opposite to the light shielding plate 77. In the third sensor 73 and the fourth sensor 74, the light-shielding plate 77 recognizes or does not shield the light emitted from the light-emitting part by the light-receiving part.

  The light shielding plate 77 rotates around the rotation shaft 721 in accordance with the rotation of the rotation shaft 721. As a result, the light shielding plate 77 shields the third sensor 73 and the fourth sensor 74 from light or not depending on the rotation angle of the rotating shaft 721. Therefore, the third sensor 73 and the fourth sensor 74 detect a predetermined rotation angle of the rotation shaft 721. And since the 3rd sensor 73 and the 4th sensor 74 are each arrange | positioned in the different position around the rotating shaft 721, the rotation angle of the rotating shaft 721 which is respectively different will be detected.

  Here, as described above, when the rotating shaft 721 rotates, the upper mold 71 moves up and down following the rotation of the eccentric cam plates 7212 and 7213 attached to the rotating shaft 721. That is, the rotation angle of the rotating shaft 721 and the vertical position of the upper mold 71 are in a correspondence relationship. Therefore, the third sensor 73 and the fourth sensor 74 detect different vertical positions of the upper mold 71.

  The third sensor 73 is provided to detect the position of the upper mold 71 for performing a stop operation (braking) with respect to the upward movement of the upper mold 71. On the other hand, the fourth sensor 74 is provided so as to detect the position of the upper mold 71 where the gap W between the upper mold 71 and the lower mold 72 is the gap W1 through which the sheet can pass. That is, the fourth sensor 74 detects the gap W1 through which the sheet can pass. The position of the upper mold 51 detected by the fourth sensor 74 is a position farther from the lower mold 72 than the position of the upper mold 71 detected by the third sensor 73.

  The operation of the folding mold forming unit 7 will be described as follows.

  First, a sheet on which a folding mold is formed is conveyed on the upper part of the lower mold 72.

  Next, the gear 7211 rotates in the R5 direction. When the gear 7211 rotates in the R5 direction, the rotating shaft 721 rotates in the R5 direction, and the eccentric cam plates 7212 and 7213 rotate. When the eccentric cam plates 7212 and 7213 are biased downward, the upper mold 71 moves downward, thereby forming a folding mold on the paper.

  Further, when the gear 7211 rotates in the R5 direction, the eccentric cam plates 7212 and 7213 are biased upward from the bottom, and the upper die 71 moves upward. Further, when the gear 7211 rotates in the R5 direction, the rotation shaft 721 rotates in the R5 direction, and accordingly, the light shielding plate 77 attached to the rotation shaft 721 also rotates in the R5 direction. And after the front-end | tip 77a of the light shielding plate 77 light-shields the 3rd sensor 73, after predetermined time progress, a brake is applied with respect to the upward movement of the upper mold | type 71, ie, rotation of the gear 7211.

  The reason why the brake is applied after a predetermined time has elapsed after the third sensor 73 detects the tip 77a of the light shielding plate 77 is the same reason as described in the first embodiment.

  Even if the rotation of the gear 7211 is braked, the rotation of the gear 7211 does not stop immediately, and the upper mold 71 continues to rise for a certain period of time. The light shielding plate 77 rotates in the R5 direction in accordance with the rotation of the rotation shaft 721 in the R5 direction, and the tip 77a of the light shielding plate 77 shields the fourth sensor 74 from light. The fourth sensor 74 detects that a gap W1 through which the sheet can pass is formed between the upper mold 71 and the lower mold 72, and the next sheet is interposed between the upper mold 71 and the lower mold 72. Be transported.

  Even after the next sheet starts to be conveyed between the upper mold 71 and the lower mold 72, the gear 7211 continues to rotate in the R5 direction, and then the rotation of the gear 7211 stops, so that the upper mold 71 is completely Stop. The light shielding plate 77 is also rotated in the R5 direction in accordance with the rotation of the rotation shaft 721 in the R5 direction. After the tip 77a of the light shielding plate 77 passes through the fourth sensor 74, the light shielding plate is synchronized with the stop of the rotation of the rotation shaft 721. 77 also stops.

  Since the next sheet has already started to be conveyed between the upper mold 71 and the lower mold 72, the gear 7211 that has stopped rotating is rotated again after the conveyance is completed and after the gear 7211 is stopped. As a result, the rotating shaft 721 rotates and the eccentric cam plates 7212 and 7213 are biased from top to bottom. Accordingly, the upper mold 71 starts to move downward to form a folding mold on the next sheet.

  The folding mold forming unit 7 having the above-described configuration can exhibit the same effects as the width direction cutting unit 5 described in the first embodiment.

  In the said embodiment, although the width direction cutting unit 5 and the folding type | mold formation unit 7 were demonstrated as an example, this invention is not limited to these examples. The present invention can be widely applied to a sheet processing unit that processes a sheet between a movable member and a fixed member, and may be, for example, a perforation forming unit that forms a perforation on a sheet. Further, in the above embodiment, the upper blade 51 or the upper die 71 is described as a movable member, and the lower blade 52 or the lower die 72 is described as a fixed member. The blade 51 or the upper die 71 may be a fixed member, and the lower blade 52 or the lower die 72 may be a movable member.

  The present invention is not limited to the configuration described in the above embodiment, and can include various modifications that can be considered by those skilled in the art without departing from the content described in the claims.

  In the present invention, since a paper processing unit capable of improving the paper processing efficiency can be provided, the industrial utility value is great.

DESCRIPTION OF SYMBOLS 1 Paper processing apparatus 2 Conveying means 10 Apparatus main body
DESCRIPTION OF SYMBOLS 11 Paper feed part 12 Paper discharge part 20 Conveyance path 21 Roller 201 Paper front end sensor 202 Paper front end sensor 204 Cut position sensor 205 Fold position sensor 31 Conveyance correction means 32 Information reading means 321 CCD sensor 33 Reject means 34 Chip removal means 4A 1st Transport direction cutting unit 4B Second transport direction cutting unit 4C Third transport direction cutting unit 5 Width direction cutting unit 51 Upper blade 52 Lower blade 53 Processing drive means 531 Motor portion 532 Gear portion 533 Drive belt 534 Rotating body 54 Arm 55 First Sensor 56 Second sensor 57 Light shielding plate 6 Control means 7 Folding mold forming unit 700 Case portion 701 Top plate 7011 Handle 702 Side plate 703 Side plate 71 Upper die 7101 Protruding portion 7102 Upper end portion 7103 Upper end portion 72 Lower die 7201 Concavity 720 2 Boss 7203 Boss 721 Rotating shaft 7211 Gear 7212 Eccentric cam plate 7213 Eccentric cam plate 7222 Disc 7223 Disc 73 Third sensor 74 Fourth sensor 77 Shading plate 81 Trash bin 82 Waste tray 100 Paper 101 Main printing section 102 Position mark 103 Bar Code 200 Paper 200a Folding type

Claims (3)

A paper processing unit for processing the conveyed paper by sandwiching it between a movable member and a fixed member,
Moving means for moving the movable member toward and away from the fixed member;
First detecting means for detecting a position of the movable member for causing the movable member moving in a direction away from the fixed member to perform a stop operation;
Second detection means for detecting that a gap through which a sheet can pass is formed between the movable member and the fixed member;
After the first detection means detects the position of the movable member, after a predetermined time has elapsed, a stop operation is performed for the movement of the movable member in a direction away from the fixed member. A paper processing unit. The sheet processing unit according to claim 1 , wherein the first detection unit and the second detection unit are optical sensors each having a light emitting unit and a light receiving unit. The sheet processing unit according to claim 1 or 2 ,
Conveying means for conveying paper to the paper processing unit,
The paper processing apparatus, wherein the transport means transports paper into the gap when the second detection means detects the gap.

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