JPS61121898A - Processing machine for sheet - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention involves passing various sheets, such as corrugated pole sheets and paperboard, cut to a certain length, between a pair of rollers that rotate while being pressed against each other. The present invention relates to a sheet processing machine that performs processes such as vertically ruling, punching, and printing on sheets.

[Prior Art] Conventionally, this type of sheet processing machine has been constructed with a roller device in which a processing roller, on which a processing tool such as a cutting die or a printing plate has been previously provided on the circumferential surface, is rotated in pressure contact with a base roller. It has been known.

In addition, in order to add vertical ruled lines in the process of manufacturing corrugated pole sheets, the applicant has created a system between a continuous corrugated paper forming machine and a cutting machine that cuts the corrugated pole paper into sheets of a predetermined length. filed a patent application (Japanese Patent Application No. 59-1389) for a corrugated pole sheet manufacturing apparatus in which a creaser with a ruled line bar attached to the circumferential surface of a processing roller was provided.

In order to process a sheet using these sheet processing machines, the sheet is passed between a processing roller and a base roller. When changing the position of vertical ruled lines, punching, printing, etc. on the sheet surface, the mounting position of a processing tool such as a ruled line bar on the circumferential surface of the processing roller is changed.

[Problems to be Solved by the Invention] However, in this type of sheet processing machine, an appropriate processing speed is determined in order to maintain a constant processing quality, and as a general rule, large speed changes of the processing roller are not possible. Therefore, when processing sheets of various lengths with a conventional sheet processing machine, the diameter of the processing roller is determined according to the longest sheet. However, when processing short sheets in this case, most of the peripheral surface of the processing roller becomes a surface that does not process the sheet surface, which prolongs the processing time of the sheet, making it impossible to shorten the processing time per sheet, resulting in production There was a problem that it was not possible to improve sex.

In order to improve this point, various sheet processing machines equipped with processing rollers according to the sheet length have been attempted, but the equipment costs are high and a large amount of installation space is required. Particularly when this type of processing machine is used as one machine in a continuous process, it is extremely difficult to provide multiple types of sheet processing machines due to the balance of machines in the preceding and preceding processes.

The purpose of the present invention is to shorten the processing time even when processing short sheets with various sheet lengths.
To provide a sheet processing machine capable of processing sheets of a wide range of lengths with high production efficiency.

[Means for Solving the Problems] The configuration of the present invention for achieving the above object will be explained using FIGS. 1 and 2, which correspond to embodiments.

In the present invention, a sheet S is supplied from a sheet feeding device 70 to a roller device 11 in which a base roller 13 and a processing roller 14 are rotated in pressure contact with each other, thereby processing the sheet S such as adding vertical lines, punching, printing, etc. In this sheet processing machine, two sets of roller devices 11 and 31 are arranged at a predetermined interval in the direction in which the sheet S passes. The processing rollers 14.34 of these roller devices 11.31 are configured to be vertically moved alternately at different timings by a vertically moving device 80.

[Function] According to the present invention, when the sheet feeding device 70 is operated and the sheet S is fed to the roller device 11 by the means described above, the processing rollers 14 and 34 are alternately moved up and down at a predetermined timing by the vertical movement device 80. . Thereby, the processing surface of the sheet S is processed in a shared manner by each processing roller 14.34 of the roller device 11.31. That is, the sheet surface processed by the roller device 11 is not processed by the roller device 31, and the sheet surface not processed by the roller device 11 is processed by the roller device 31.
Processed in

[Example] Next, embodiments of the present invention will be described in detail based on the drawings.

As shown in FIGS. 1 to 4, the front frame 10 is provided with a first roller device 11, and the rear frame 30 is provided with a second roller device 31.

The roller devices 11 and 31 each have a base roller 13.
33 and processing rollers 14 and 34.

In this example, S is a corrugated pole sheet, and each peripheral surface of the processing roller 14.34 has vertical ruled lines 14a, 14b.
, and 34a, 34b (FIG. 3), these vertical ruled line bars 14a, 14b and 34a, 34b can be attached at any position on each peripheral surface of the processing roller 14, 34, as shown in FIG. The mounting position of the corrugated pole sheet is determined according to the respective intervals between the vertical ruled lines H1 and J shown in FIG.

Also, the shaft 15.35 of the base roller 13.33 has a bearing 16.
．． 36 to the frame 1O130,
Further, the shaft l7.37 of the processing roller 14.34 has a bearing 18.37.
38 and guides 19 and 39, respectively, so that they can be moved up and down. The shaft 17.37 of the processing roller 14.34 is rotationally driven by the line shaft 51 via a gear 21.41 and a gearbox 22.42 (FIG. 2).

Further, the shaft 15.35 of the base roller 13.33 is rotationally driven by a drive mechanism (not shown).

First roller device 11) The second roller device 31 and the second roller device 31 are arranged at a distance t slightly longer than the length of the sheet S.

A conveyor 50 for transporting sheets is provided between these roller devices 11 and 31. A sheet feeding device 70 is provided in front of the roller device 11. The sheet feeding device 70 is driven by the line shaft 51 and feeds the sheets S one by one in synchronization with the operating timing of the vertical movement device 80.

Further, at the bottom of the bearing 18.38 of the processing roller 14.34, there is a pair of links 23.2 that support the processing roller 14.34.
4 and 43.44, respectively. Both ends of rods 52 and 53 are rotatably attached to the intersecting axes of the pair of links 23 and 24 and the intersecting axes of the links 43 and 44, respectively.

These rods 52 and 53 are connected by beams 54, as shown in FIG. A rod moving device 55 is provided between the rod 52 and the line shaft 51, and the rotational driving force of the line shaft 51 is converted into horizontal reciprocating driving force and applied to the rod 52.

Rod moving device 55, rod 52, 53, beam 54,
Vertical movement device 80 by links 23.24 and 43.44
is configured.

This rod moving device 55 is shown in FIGS. 6-8.

A gear 56 is fixed to the line shaft 51 (FIG. 6), and this gear 56 meshes with a gear 59 fixed to one end of an input shaft 58 of the rod moving device 55 via an intermediate gear 57. A gear 61 is fixed to the other end of this input shaft 5B. A gear 63 fixed to a first rotating shaft 62 and an intermediate gear 64 mesh with this gear 61 . A gear 66 fixed to a second rotating shaft 65 meshes with the intermediate gear 64 . Cylindrical cams 67 and 68 are fixed to these rotating shafts 62 and 65, respectively. Spiral grooves 67a and 68a are cut into these cylindrical cams 67 and 68, and a cam follower 69 is disposed between the cylindrical cams 67 and 68.

This cam follower 69 is slidably fitted onto a horizontal shaft 71 by a small roll 72, which will be described later, and the horizontal shaft 71 is fixed to vertical shafts 73 and 74 at both ends thereof. These vertical axes 73.
74 is supported so as to be movable up and down. The small roll 72 is rotatably attached to a guide 75 that is vertically movable and horizontally fixed. On the upper and lower surfaces of this guide 75,
Rotatable cam followers 76 and 77 as shown in Figure 8.
One end of the two is in contact with each other. Disc cams 78,79 abut against the other ends of these cam followers 76,77. Compression springs 81 and 82 press the cam followers 76 and 77 against the disc cams 78 and 79, respectively. The disc cams 78 and 79 are formed with different diameters for each semicircle, and are rotated by a rotation mechanism (not shown) to displace the cam followers 76 and 77 and move the guide 75 up and down. Cam follower 69 is guide 75
When the aforementioned protrusions 69a and 69b switch to one of the spiral grooves 67a and 68a and lock therein, the cam follower 69 is moved horizontally.

The base end of a shaft 83 is implanted in the cam follower 69, and the distal end thereof is rotatably attached to one end of a link 85 via a bearing 84. A shaft 86 is provided at the other end of the link 85, and this shaft 86 is rotatably attached to the rod 52 described above.

The operation of this embodiment configured in this way is shown in FIGS. 1 and 6.
This will be explained based on FIGS.

First, when the sheet feeding device 70 is operated and the leading edge of the sheet S reaches the roller device 11, the cam 7 is moved as shown in FIG.
Guide 75 by 8.79 and cam follower 76.77
push upward. As a result, the protrusion 69a of the cam follower 69 begins to engage with the spiral groove 67a of the cam 67, as shown by the solid line in FIG. 7, and the cam follower 69 moves to the right (in the direction of the solid line). This movement of the cam follower 69 causes the link 85 to move the rod 52 to the right (in the direction of the solid line). As a result, the links 23, 24 are bent as shown in FIG. 1, the links 43, 44 are perpendicular to the rod 52, and the processing roller 34 is raised while the processing roller 14 is lowered.

Next, as shown in FIG. 9(a), while the processing roller 14 is being lowered, the sheet S is transported, and when the sheet S is transported by that length, the cams 78 and 79 shown in FIG. Turn half a turn and push the guide 75 downward this time. As a result, the protrusion 69b of the cam follower 69 begins to engage with the spiral groove 68a of the cam 68 as shown in FIG.
9 moves to the left (in the direction of the broken line). This movement of the cam follower 69 causes the link 85 to move the rod 52 to the left (in the direction of the broken line). This places links 23,24 perpendicular to rod 52 and bends links 43,44. The processing roller 14 rises to the base roller 13
The remaining surface of the sheet S is processed as shown in FIG. 9(b). Specifically, the vertical ruled line bars 14a and 14b of the processing roller 14 apply vertical ruled lines I and H shown in FIG. 5 to the sheet S.

Next, when the processing of the remaining sheet surfaces of the sheet S is completed, the leading edge of the sheet S transferred to the conveyor 50 reaches the rear roller device 31.

At this point, the rod moving device 55 switches the moving direction of the rod 52 again to the right (in the direction of the solid line), the processing roller 34 rises, and the processing roller 14 descends. followed by the 9th
As shown in Figure (C), the processing roller 34 is the base roller 3.
It rotates while being in pressure contact with 3, and processes the first Miyabi sheet surface of the sheet S. Specifically, the vertical ruled lines /<-34a and 34b of the processing roller 34 form vertical ruled lines K and J shown in FIG. 5 on the sheet S. On the other hand, the tip of the next sheet S is supplied to the lowered processing roller 14. When the processing roller 34 finishes processing the first sheet surface of the sheet S, the rod moving device 55 moves the rod 52 again.
The moving direction of is switched to the left (dotted line direction), the processing roller 34 descends, and the processing roller 14 rises, as shown in Fig. 9(d).
), the descending roller 14 processes the second half of the sheet surface of the next sheet S, and this operation is repeated thereafter.

The characteristic operation of this embodiment is that the two processing rollers 14 and 34 are connected to the rod 52.53 and the links 23.24 and 4.
3.44 causes seesaw movement, and when one processing roller rises, the other processing roller descends, so even if the sheet is long, the processing roller with a small diameter, whose circumference is half the sheet length, will Second, the downward energy of one processing roller is used as the upward energy of the other processing roller.

FIG. 10 is a diagram showing essential parts of another embodiment of the present invention.

In FIG. 10, the same symbols as in FIG. 8 indicate the same parts. A characteristic configuration of this embodiment is that a solenoid 90 is disposed near the arm 77a of the cam follower 77 shown in FIG. This is because I tried not to follow suit.

In such a configuration, when the sheet length is shorter than the circumferential length of the processing roller 14, the solenoid 90 is activated to fix the guide 75 so that the cam follower 77 does not lift up the guide 75 regardless of the rotation of the disc cam 79. As a result, the guide 75 is supported by its own weight in contact with the cam follower 77, and the projection 69b is always locked in the spiral groove 68a.

In this state, as described above, the rods 52 and 53 move to the left, raise the processing roller 14, and raise the processing roller 34.
Keep it lowered (Fig. 9 (t)), (d))
Immediately after the sheet S passes through the raised processing roller 14, the sheet feeding device 70 is operated so that the next sheet S is supplied to the processing roller 14. Due to this □, when the sheet length is shorter than the circumferential length of the processing roller 14, the next sheet can be processed in a short waiting time. Also, if the sheet length changes to a sheet longer than the circumference of the processing roller 14, the solenoid 90 is deactivated as shown by the broken line, and the cam followers 76 and 7 are moved as in the previous embodiment.
7 is displaced by disk cams 78 and 79, and two processing rollers 14 and 34 share the processing of one sheet.

Note that the link and rod mechanism shown in FIG.
As shown in the figure, the link 44 is formed into a link 93 having an arm extending upward, and a tip shaft 93 of the link 93 is formed.
The rod 52 may be rotatably connected to the &, so that the heavy processing roller can be moved up and down with a small amount of force.

Further, although an example is shown in which the solenoid 90 is used as a mechanism for fixing the guide 75, the mechanism is not limited to a solenoid.
A locking mechanism using other seven cutter units may also be used.

[Effects of the Invention] As described above, according to the present invention, the roller device in which the base roller and the processing roller rotate while being in pressure contact with each other is spaced slightly longer than the sheet S by a distance of 1 in the sheet passing direction. By arranging two sets and configuring the two processing rollers to move up and down alternately at different timings through a seesaw motion, the sheet length can vary and even when processing short sheets, the sheet can be easily processed. The processing time is short, and sheets of a wide range of lengths can be processed with high production efficiency.

In particular, according to the present invention, there is an advantage that the energy for lowering a processing roller becomes the energy for raising another processing roller, and that one potential energy can be effectively used without wasting it.

Furthermore, when processing a sheet that is shorter than the circumference of one processing roller, one of the two processing rollers can be kept raised and the other one lowered. , a sheet shorter than the circumference of one processing roller can be processed at a feed rate that is more than twice as fast as a sheet that is equal to the total circumference of two processing rollers, and the special processing time for short sheets can be reduced compared to conventional methods. Long problems will be resolved.

[Brief explanation of drawings]

Fig. 1 is a sectional view of main parts taken along the line AA in Fig. 2 showing the entire sheet processing machine according to the present invention, Fig. 2 is a plan view showing the entire sheet processing machine according to the present invention, and Fig. 3 is the main part sectional view showing the entire sheet processing machine according to the present invention. FIG. 4 is a cross-sectional view of the main part taken along the line BB of the roller device of the sheet processing machine according to the embodiment, FIG. 4 is a left side view showing the main part of the sheet processing machine according to the embodiment of the present invention, and FIG. A plan view of a sheet processed by a processing machine, FIG. 6 is a perspective view of a main part of a rod moving device of a sheet processing machine according to an embodiment of the present invention, FIG. 7 is a front view of FIG. 6, and FIG. 8 is a diagram of FIG. 9(a) to 9(d) are schematic diagrams showing the operation of the sheet processing machine according to the embodiment of the present invention, and FIG. 10 is a left side view of FIG.
This figure corresponds to FIG. 8 showing a rod moving device of a sheet processing machine according to another embodiment of the present invention, and FIG. 11 is a diagram showing a link mechanism of a roller device according to another embodiment of the present invention. S: sheet, kl, 31: roller device, 13° 33: base roller, 14, 34: processing roller, 23.24, 4
2.43 = link, 52, 53: rod, 55: rod moving device, 80: vertical movement device, 90: locking mechanism (
solenoid).

Claims (1)

[Claims] 1) A sheet processing machine that processes a sheet by passing it through a rotating roller device in which a base roller and a processing roller are in pressure contact with each other, wherein the roller device (11, 31) processes the sheet in the sheet passing direction. Two sets are arranged at an interval slightly longer than the length of
The vertical movement device (80) vertically moves the two processing rollers (14, 34) alternately up and down at different timings.
) is arranged at the bottom of the bearings (18, 38) of the processing roller (
A pair of links (23, 24, 4) supporting
3, 44) and each pair of links (23, 24, 43, 4
4), and a rod moving device (55) that reciprocates these rods (52, 53) in a horizontal direction. 2) The rod moving device (55) is provided with a locking mechanism (90) that can raise one of the two processing rollers (14, 34) and fix the other in a lowered state. A sheet processing machine according to claim 1.