JPH0720726B2 - Marking head of marking machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a marking head of a marking machine, which is capable of marking in a proper position on an object to be printed regardless of the uneven shape on the plate to be stamped. .

(Prior Art) As a marking machine which has been generally used conventionally, there is one as shown in FIG. 16, for example.

In the figure, reference numeral 141 is a base, and two columns 142, 142 are erected parallel to each other on one end side of the upper surface thereof, and a cylinder mounting body 143 is fixed through the columns 142, 142. From both ends of the cylinder mounting body 143, the cylinder mounting body 143 is parallel to each other and horizontally 2
Book support rods 144 and 144 are extended, and a horizontal moving plate 146 is installed between supports 145 and 145 that are penetrated by the rods 144 and 144.
The tip of the air cylinder 147 attached to the cylinder attachment body 143 is fixed to the moving plate 1 by
46 can move horizontally. Horizontal moving plate 146
A vertical moving plate 149 is provided under the two vertical rods 148, 148, and the tip end of an air cylinder 150 provided at the center of the horizontal moving plate 146 is fixed to the vertical moving plate 149. The vertical moving plate 149 is vertically movable with respect to the horizontal moving plate 146. A marking head 151 is screwed on the lower surface side of the vertical moving plate 149, and the rails 152, 152 are attached.
The imprinted plate 153 placed on the upper part is moved substantially by the movement of the flat belts 154, 154, and then the movable plate 149 is lowered to imprint the head on the imprinted plate 153.
When 151 is brought into contact, marking becomes possible. In addition, 1
55 is an ink pot.

Further, the marking head 151 is usually commercially available as shown in FIG. 17, and is composed of a plurality of rubber belts 159 wound around large and small rolls 157 and 158 pivotally supported by a U-shaped frame 156. Has been done. A large number of prints are highlighted on the surface of the rubber belt 159.
By rotating with the large roll 157, it is possible to imprint with various character arrangements.

(Problems to be Solved by the Invention) In the above-mentioned conventional technique, since the marking head 151 having a certain size is directly brought into contact with the marking plate 153 for marking, for example, as shown in FIG. In the case where the marking plate 153 has an uneven shape formed by electrical wiring or the like,
It was not possible to imprint a small area where the wiring and the like were dense, and the imprinting position was naturally limited. Further, the number, direction, and spacing of characters to be imprinted by the imprinting head 151 shown in FIG. 17 are also limited to a certain value, and if it is desired to change them, the imprinting head 151 itself must be replaced with another one. However, it was not very versatile.

The present invention has been made in view of such a situation, the object is, regardless of the shape of the stamped plate, can be reliably printed in a narrow place in place,
Moreover, it is to provide a marking head of a marking machine capable of easily changing the number of characters and the like without replacing the marking head itself, and also to make the marking head itself compact. .

(Means for Solving the Problems) In order to achieve the above object, the present invention takes the following technical means.

That is, the claim (1) of the present invention is such that the rotor bearing 34, the rotor shaft 37 which is supported by the bearing 34 and rotates about the rotation axis L ₀ , and the rotation axis L ₀ are the centers. A plurality of slide shafts 58 that are provided on the circumference that are parallel to the rotor shaft 37 and that rotate around the rotation axis L _{0 as the} shaft 37 rotates, Slide shaft
A stamp rod 61 slidably attached to the rotor 58 in a direction parallel to the rotation axis L ₀ , and the rotor bearing 34.
At least one pusher 96 is provided around the periphery of the push rod 96, and the pusher 96 projects forward and backward in a direction parallel to the rotation axis L _0. A fixed position holding means 83 for returning the stamp rod 61 to the initial fixed position when it is displaced in a direction parallel to the moving axis L ₀ is provided, and the pusher 96 contacts the pusher 96 from the side of the rod 61. It is characterized in that the contact portion 72 is provided so as to project.

Further, claim (2) of the present invention is the slide shaft.
58 is alternately arranged on a large circle and a small circle around the rotation axis L ₀ of the rotor shaft 37.

(Operation) The plurality of slide shafts 58 and the stamp rod 61 are both attached to the rotor shaft 37 as the rotor shaft 37 rotates.
It rotates around the rotation axis L _{0 of the}
Since 96 is provided around the rotor bearing 34, the positional relationship with the rotor bearing 34 in the direction perpendicular to the rotation axis L ₀ does not change regardless of the rotation of the rotor shaft 37. Therefore, by rotating the rotor shaft 37 with respect to the rotor bearing 34, one stamp rod 61 can be arbitrarily selected at the position of the pusher 96 in the direction perpendicular to the rotation axis L _0. it can. Selected stamp rod
As shown in FIG. 4, 61 is slid in the same direction via the contact portion 72 by the protrusion of the pusher 96 in the direction parallel to the rotation axis L ₀ , and the printing ( For example, when the rubber stamp 62) abuts on the stamped plate 3,
Can be stamped.

(Example) Hereinafter, one example of the present invention will be described in detail with reference to the drawings.

First, the overall structure of the marking machine according to the present embodiment will be described with reference to FIGS. 1 to 3. In the figure, reference numeral 1 denotes a base, which is in the shape of a rectangular parallelepiped box, on which the marking robot 2, the loading device 4 and the unloading device 5 for the marking plate 3,
And a reversing machine 6 is provided. The marking robot 2
Is an X-axis arm 7 oriented in the traveling direction of the stamped plate 3 (hereinafter referred to as the X-axis direction), and a Y-axis oriented in a direction perpendicular to the X-axis direction (hereinafter referred to as the Y-axis direction). Arm 8
And a marking portion 9 attached to the Y-axis arm 8 and the X-axis on the attachment substrate 11 attached to the base 1 with a proper vertical distance through several columns 10. Axis arm 7
Are mounted on and fixed to the base 1. The Y-axis arm 8 has an XY bracket on one end side.
It is attached to the X-axis arm 7 via 12 so as to be movable in the X-axis direction, and the marking portion 9 is also movable in the Y-axis direction with respect to the Y-axis arm 8 via a slider bracket 13 described later. Installed. Therefore, the marking portion 9 can freely move on the base 1 within the range allowed by the lengths of the arms 7 and 8. It should be noted that both arms 7 and 8 are the same device whose total lengths are slightly different, and a ball screw shaft (not shown) is extended in a cover 14 having a substantially U-shaped cross section, and the screw shafts are the same as those described above. The brackets 12 and 13 are engaged with each other, and by rotating the screw shaft by the drive motor 15, the brackets 12 and 13 can move along the arms 7 and 8.

Next, the marking unit 9 will be described.

As shown in FIG. 4, the marking unit 9 is mainly composed of a marking head 17 and a drive unit 18 for rotating the marking head 17. Referring to the approximate center in the figure, the Y-axis arm 8 is surrounded by the upper plate 19, the under plate 20, the back plate 21, and the head plate 22, and a frame structure having a substantially rectangular cross section is formed. A drive unit 18 including a drive motor 23 and a speed reducer 24 is provided on the back plate 21 side. That is, the drive motor 23 is attached to the lower side of the back plate 21 via the motor bracket 25 and the motor mounting plate 26, and the drive motor 23 is attached to the upper side via the speed reducer bracket 27 and the mounting plates 28, 28. Is installed. In the motor 23 and the speed reducer 24, drive shafts 29, 29 are connected by a boss collar 30, and a drive pulley 31 is fitted and fixed to the upper end side of the drive shaft 29 of the speed reducer 24. Further, 13 is a slider bracket, 32 is a slide unit, and by attaching the slide unit 32 to the head plate 22 in the vertical direction, the marking portion 9 is attached.
The entire unit is vertically movable within a certain range, and when the unit 32 is attached to the slider bracket 13, the entire marking portion 9 is also movable in the Y-axis direction.

A marking head 17 is formed on the head plate 22 side (right side in FIG. 4). Of these, 34 is a rotor bearing, and as shown in FIG. 5, has a mounting leg portion 35 and a boss portion 36. The rotor bearing 34 is in contact with the head plate 22 at its leg portion 35 and is tightened and fixed by a screw (not shown), and the rotor shaft is provided at the boss portion 36 thereof.
Supports 37 rotatably. That is, in the center of the boss portion 36,
A shaft insertion hole 39 in which upper and lower sides are widened to form recesses 38, 38 is provided, and bearings 40, 40 are fitted into the recesses 38, 38 from above and below, and the rotor shaft is inserted through the bearings 40, 40. 37 is rotatable with respect to the bearing 34. The lower end side of the rotor shaft 37 is supported by a rotor receiver 42 via a bearing 41, and
By supporting the rotor receiver 42 on the lower bracket 43 extending from the lower end of the head plate 22,
A support structure on the lower end side of the rotor shaft 37 is configured.
In addition, 44 is an adapter for preventing the rotor shaft from coming off.
The rotor shaft 37 can be adjusted in the vertical direction by being screwed into the screw portion 45 on the upper portion of the 37. Reference numeral 46 is a passive pulley, which is fixed to the upper end of the rotor shaft 37 and is wound around the drive pulley 31 by a timing belt 46a.

Reference numeral 47 denotes a shaft guide, which has a disc shape having a mounting boss 48 in the center as shown in FIGS.
Is fitted to approximately the center of the rotor shaft 37 in the axial direction,
By screwing the screw 49 from the side, the rotor shaft 37
Fixed against. The shaft guide 47 has a large diameter circle 50 and a small diameter circle 51 that are concentric with the outer peripheral shape of the guide 47.
There are 18 holes 52 each on the top.
Are alternately arranged such that, for example, if one hole 52 is on the large diameter circle 50, the adjacent holes 52 are on the small diameter circle 51. Reference numeral 53 denotes a rod guide, which has a generally cylindrical outer shape and has a central hole 54 in the center thereof. The lower end side of the rotor shaft 37 is fitted into the central hole 54, and the mounting flange 55 of the shaft 37 and the upper plate of the rod guide 53 are tightened and fixed by screws (not shown). As shown in FIG. 5, the rod guide 53 has concave and convex side surfaces, and 36 slide grooves 56 parallel to the axial direction are formed at equal intervals in the circumferential direction. Corresponding to the holes 52 of the shaft guide 47, a total of 36 shaft fitting holes 57 are provided in the same arrangement. The fitting hole 57 extends deeply from the upper surface of the rod guide 53 to the inside. By fitting and fixing a round rod-shaped slide shaft 58 into the fitting hole 57, a total of 36 slide shafts 58 are provided. It is erected on the rod guide 53. That is, the slide shaft 58 has the rod guide 53 on the lower end side.
It is supported from below by the hexagon socket bolt on the upper end side by abutting the lower surface of the shaft guide 47 through the hole 52 as shown in FIG.
It is stopped by 59. Therefore, the large number of slide shafts 58 are arranged alternately on the large circle and the small circle around the rotation axis L ₀ of the rotor shaft 37 and in parallel to the rotor shaft 37. In addition, they rotate with the rotation of the rotor shaft 37.
It will rotate around L ₀ .

Reference numeral 61 is a stamp rod, which has a long rod shape with a rectangular cross section. On the lower end surface of the stamp rod 61, a rubber stamp 62 in which a specific character is embossed is attached, and
A mounting pin 63 is provided on the upper end side. Mounting pin 63
Has a head portion 64 whose one end side is processed into a T shape, and the head portion 64 has a long hole provided on both side surfaces on the upper end side of the stamp rod 61.
The stamp spring 61 is fitted to the stamp rod 61 by being fitted into the punch rod 65, and a cushion spring 66 is interposed between the attaching pin 63 and the stamp rod 61. 67 is a slide lever of two types, long and short, which has a slide hole 68 at one end, a mounting hole 69 at the center, and a mounting recess 70 at the other end. Among these, the slide lever 67 is fixed to the stamp rod 61 by fitting the mounting pin 63 into the mounting hole 69 and tightening the bolt. Further, 71 is a push lever, which comprises an abutting portion 72 and a mounting plate portion 73 vertically erected from the upper surface of the corresponding abutting portion 72. A rod recess 74 approximately equal to the cross-sectional width of the stamp rod 61 is formed on one end side of the abutting portion 72, and a cutout into which the mounting recess 70 of the slide lever 67 is fitted is formed on the upper end side of the mounting plate portion 73. The cutout 75 is formed. That is, the push lever 71 is provided with the cutout 75.
The rod recess 74 is merely a stamp rod, although it is fixed to the slide lever 67 by fitting the mounting recess 70 with the mounting recess 70.
Since only 61 is held, it is possible to move relative to the stamp rod 61 by the amount of expansion and contraction of the cushion spring 66 described above. In this way, the stamp rod 61 to which both levers 67 and 71 are attached is arranged such that the slide hole 68 of the slide lever 67 is penetrated by the slide shaft 58 so that the stamp shaft 61 moves in the vertical direction (that is, the rotor). The shaft 37 is mounted so as to be relatively movable in a direction parallel to the rotation axis L ₀ of the shaft 37. At this time, since the slide shafts 58 are alternately arranged on the large-diameter circle 50 and the small-diameter circle 51 in a plan view as described above, respectively, 18 slide shafts 58 are arranged, as shown in FIGS. The slide lever 67L is attached to the slide shaft 58 on the small-diameter circle 51, and the shorter slide lever 67S is attached to the slide lever 58 on the large-diameter circle 50, so that the push lever 71 and the stamp rod 61 are respectively viewed in a plan view. It will be arranged in a circular shape. Therefore, in this embodiment, by arranging the slide shaft 58 and the like in this way, a large number of stamp rods 61 such as 36
Despite the provision of, the compacting of the marking head 17 is realized.

Reference numeral 77 denotes a spring retaining plate, which has a disc shape having an outer diameter slightly larger than that of the shaft guide 47, and has a boss portion 7 at the center.
8, 36 spring retaining holes 79 are provided on the peripheral end side. The retaining plate 77 is fixed to the rotor shaft 37 by having its boss portion 78 fitted into the medium diameter portion 80 of the rotor shaft 37 and tightened and fixed by a screw (not shown). Then, one end side of that number of springs 81 is hooked to each of the 36 hooking holes 79, and the other end side of the spring 81 is a hole provided on the upper end side of the mounting plate portion 73 of the push lever 71. 82 are hooked up respectively. Therefore, when the stamp rod 61 is displaced with respect to the slide shaft 58 in the direction parallel to the rotation axis L ₀ (the position indicated by the phantom line in FIG. 4), the restoring force of the spring 81 causes the initial fixed position (see FIG. 4). The solid line position) is returned to, and the fixed position holding means 83 of the stamp rod 61 is formed here.

Also, reference numeral 85 is a stamp guide, as shown in FIG.
It is a circular ring-shaped plate having many irregularities inside. This stamp guide 85 has a concave portion formed by the uneven shape.
The same number as 86 are provided to correspond to the slide grooves 56 of the rod guide 53, and four mounting pieces 87 are fixed to the lower surface of the rod guide 53 by fastening. Then, as shown in FIG. 8, the tip end side of the stamp rod 61 is inserted into the space 88 formed by the recess 86 and the slide groove 56, whereby the stamp rod 61
The steady rest has been made.

Further, 90 is an ink fountain, and the head plate 22
Of the ink fountain 90 itself is moved upward from the position shown in FIG. 4 to attach ink to the rubber stamp 62. Is able to.

Next, 94 is a pusher cylinder, which has a pusher rod 95 that can be advanced and retracted by air pressure inside,
A pusher 96 is attached to the tip of the rod 95. As shown in FIG. 5, the pusher cylinder 94 is fixed to the side surface of the rotor bearing 34 via a mounting bracket 97, a spacer 98 and a support plate 99 so as to be parallel to the rotation axis L _0. At this time, the pusher cylinder 94 is located directly above the contact portion 72 of the push lever 71. In the case of this embodiment, a total of four pusher cylinders 94 are provided, and the pusher cylinders 94 are arranged so that the central angles thereof with respect to the rotation axis L ₀ are 90 degrees. That is, the ninth
As shown in the figure, the X-axis arm 7 whose origin is the rotation axis L ₀
The pusher cylinders 94 are arranged so that two pushers 96 each correspond to the X axis parallel to the X axis and the Y axis parallel to the Y axis arm 8. In addition, the number of stamp rods 61 is set to 36 as described above in order to arrange a total of 36 common characters, 26 in alphabets A to Z and 10 in numbers 0 to 9. Yes, and therefore the rotation axis L ₀
The central angle α made by each character with respect to is all set to 10 degrees.

Next, the carry-in device 4 and the carry-out device 5 of the stamped plate 3 will be described.

These devices 4 and 5 are devices for respectively loading and unloading the stamped plate 3 in the X-axis direction. As shown in FIG. 1, the loading device 4 is described later and is arranged at a substantially central position on the base 1. The carry-out device 5 is on the carry-in side (the right side in FIG. 1) of the reversing machine 6, and
It is located on the carry-out side (left side in the figure). Both of these devices 4,
The pair of left and right rails 101, 101 included in 5 are parallel to the X-axis direction, and both devices 4, 5 are provided with an elevating means 102 for vertically elevating the rails 101, 101 with respect to the base 1. .

As shown in FIGS. 10 and 11, the elevating means 102 includes an elevating frame 1
03, frame mounting plate 104, base plate 105, lifting cylinder 106, side shafts 107, 107. The base plate 105 is clamped and fixed to the base 1, and a lifting cylinder 106 is provided at the center of the base plate 105 in the Y-axis direction, and side shafts 107, 107 are provided on both sides in the Y-axis direction with the cylinder 106 interposed therebetween. 1
It is slidable in the vertical direction via 08 and 108. The upper ends of the lifting cylinder 106 and the side shaft 108 are
It is connected to the elevating frame 103 via a frame mounting plate 104, and the elevating frame 103 is moved up and down by the driving force of the elevating cylinder 106. The base plate 105 is arranged in the Y-axis direction with respect to the base 1.
The elevating frame 103 can be adjusted in sliding position in the Y-axis direction with respect to the frame mounting plate 104 by bolting to elongated holes (not shown). Reference numeral 109 denotes a reduction gear motor, which is attached to the left and right side walls 110, 110 of the elevating frame 103 from the outside, and has drive pulleys 111 at its tip, that is, in the elevating frame 103. Reference numeral 112 denotes a flat belt, which is wound around the drive pulley 111, and is wound around a pair of passive pulleys 113, 113 arranged on the drive pulley 111 and pulleys 114, 114 arranged on both ends of the rail 101, respectively, as shown in FIG. By being hung, the flat belt 112 is parallel to the rail 101 and the upper surface of the flat belt 112 is
It is provided so as to have substantially the same height as the step surface 115 of 1. Therefore, as shown in FIG. 10, the stamped plate 3 placed on the step surface 115 of the left and right rails 101, 101 has the flat belt 112.
It is supposed to be moved in the X-axis direction by.

Next, the reversing machine 6 will be described.

The reversing machine 6 is located substantially in the center of the base 1, that is, the loading device 4
Is a device that is located in the middle of the carry-out device 5 in the X-axis direction, receives the printing target plate 3 from the carry-in device 4, and supplies the same to the carry-in device 5.

In FIGS. 13 to 15, 117 is a vertical axis motor,
It is housed in a box 120 fixed on a spacer 118 standing on the base 1 and a slide base 119 on the spacer 118. A rotary boss 122 is attached to a drive shaft of the motor 118 via a ball bearing 121, and the rotary plate 12 is mounted on the boss 122.
3 is fixed. A pair of cover plates 123a and 123a are erected on the rotary plate 123, and a reversing mechanism 124 is configured. That is, the horizontal shaft motor 126 is attached to the rear side (right side in FIG. 13) of the plate 123a via the attachment bracket 125. A horizontal shaft 128 is connected to a drive shaft of the horizontal motor 126 via a joint 127, and the horizontal shaft 128 is rotatably supported by a horizontal bearing 129 provided on the front side inside the cover plate 123a. A center boss 130 is attached to the front side (tip side) of the horizontal shaft 128, and a reversing shaft 131 is fixed to the boss 130 by penetrating. Side bosses 132, 132 are attached to both ends of the reversing shaft 131 so as to be positionally adjustable in the Y-axis direction, and support arms 133, 133 are extended from the side bosses 132, 132, respectively. These support arms 133, 133 are set parallel to the X-axis direction and at substantially the same position as the rails 101, 101 in the Y-axis direction. The height of the support arms 133, 133 is the height when the rails 101, 101 are up. It is also the same. A support groove 134 into which the peripheral edge of the marking plate 3 can be inserted is formed on the inside opposite to each other.
Also, 135 is a shock absorber, and the box 1
The stoppers 137, which are horizontally mounted on the brackets 136 and 136 which are oppositely installed on the left and right, respectively, and which extend from the lower surface of the rotary plate 123, come into contact with the absorbers 135 and 135 to rotate the reversing machine 6 in the horizontal direction. The movement stops at a fixed position with little impact. Furthermore,
138 is also a shock absorber, which is attached to the rotary plate 123 in the vertical direction, and a stopper 139 protruding from the side surface of the joint 127 abuts on the absorber 138, whereby the center boss 130, that is, the support arm 1
The rotation of 33,133 is also fixed at a fixed position.

Next, an example of the operation of the printing machine will be described.

First, the reversing machine 6 is initially waiting for its support arm 133 toward the carry-in device 4 side. At this time, the carry-in device 4 raises the rail 101 and the carry-out device 5 is lowered. Then, when the marking plate 3 is placed on the rail 101 of the carry-in device 4 and carried in in the X-axis direction (left direction in FIG. 1),
Both ends of the stamped plate 3 in the Y-axis direction enter the support grooves 134, and the stamped plate 3 is delivered to the reversing machine 6 side. afterwards,
After the carry-in device 4 goes down, the reversing machine 6 rotates in the horizontal direction so that the printing target plate 3 is reversed to the carry-out device 5 side, and then the carry-out device 5 moves up to move the printing target plate 3 to the reversing device 6. And the unloading device 5 thereof.

At the position at this time (that is, the hatched position in FIG. 1), the marking of the marking plate 3 is performed.

That is, first, a predetermined rubber stamp 62 (for example, letters A and B) selected by the rotation of the rotor shaft 37 through the vertical movement of the ink fountain 90 while the printing plate 3 is being carried in. , C) are inked. Then, the X-axis arm 7 and the Y-axis arm 8 are actuated to move the marking head 17 to a predetermined marking location, and the pusher rod 95 advances downward from the specific pusher cylinder 94 of the four. At this time, the rubber stamp 62 (stamp rod 61) to which the ink is applied by the rotation of the rotor shaft 37
The abutting portion 72 corresponding to the pusher 96 is aligned with the pusher 96, and the abutting portion 72 resists the spring 81 and pusher 96.
Are pushed down one by one in order, the stamp rod 61 projects downward from the marking head 17, and the stamped plate 3
The predetermined array (A, B, C) is stamped on the upper surface.

After the marking of the surface of the marking plate 3 is completed in this way,
The unloading device 5 goes down, and the support arm 133 of the reversing device 6 is inverted 180 degrees around the center boss 130, so that the printing target plate 3 is turned upside down, and the unloading device 5 is again raised to perform the marking on the back side. Be seen. When the marking on the back surface is completed, the printing target plate 3 is unloaded in the X-axis direction along the rail 101 of the unloading device 5, and the process proceeds to the next step. still,
The above-described operation is merely an example, and it goes without saying that the program can be set so that only the back surface or only the front surface is marked.

According to the present embodiment described in detail above, the stamp rods 61 can be pushed down one by one to print one character at a time irrespective of the size of the printing head 17 itself.
Regardless of the concavo-convex shape due to the wiring or the like on the above, it is possible to reliably mark even a small space, and the spacing, the number of digits, and the arrangement of characters can be freely selected. In addition, the direction of the characters can be arbitrarily set depending on the arrangement of the pusher cylinders 94. In the present embodiment, the four cylinders 94 are provided at intervals of 90 degrees. Therefore, for example, the character arrays a, b, shown in FIG. It is possible to select the direction of the imprinted character in the four directions c and d, that is, the directions corresponding to the four sides of the imprinting plate 3.

Further, even if the marking plate 3 is changed in various ways, it is possible to deal with the arrangement of characters and the operation of the carry-in / carry-out devices 4 and 5 without directly touching the device itself, and almost only by program control. The process can be fully automated and the versatility can be greatly expanded. Further, since the reversing machine 6 is provided between the loading / unloading device 4 and the loading / unloading device 4, it is possible to print on the front and back of the printing target plate 3 as described above.

The present invention is not limited to the above embodiment.

For example, the configuration of the X-axis and Y-axis arms 7 and 8 is not limited to the above-mentioned slide type, but the X-axis arm 7 is rotatably supported by the mounting substrate 11 via a hydraulic cylinder or the like. Similarly, the Y-axis arm 8 may be pivotally supported on the tip side of the X-axis arm 7 so as to be rotatable, so that the marking head 17 can be moved in the XY directions on the base 1. Conversely, the marking head 17 side may be fixed to the base 1 and the reversing machine 6 or the carry-out device 5 side may be horizontally moved. Further, in the fixed position holding means 83, the point is that the stamp rod 61 can be reliably returned to the initial position,
It is not limited to the above-mentioned means using the spring 81, and a rubber band or the like can be used instead.

Further, the marking head 17 according to the present invention can be laterally supported to configure the marking robot 2, and in this case, the marking can be performed on the side surface of the box or the like. In addition, the term "marking" used in the present specification is used in a broad sense including, for example, a marking when it is not necessary to apply ink. Therefore, the marking plate 3 is a metal plate or the like and should be marked on it. Instead of the rubber stamp 62, the tip of the stamp rod 61 may be a hard print.

(Effects of the Invention) According to the present invention, the stamp rods 61 are projected one by one from the marking head 17 to perform marking, so that even if there is a narrow place where wiring and the like are densely arranged on the object to be stamped, it is possible to ensure that position. Can be stamped. Moreover, since the stamp rod 61 has a plurality of stamps and is arbitrarily selected and stamped, it is possible to arbitrarily change the number of characters to be stamped, an interval, an arrangement, etc., and therefore, the stamping process can be automated. And,
It is possible to contribute to the construction of a stamping machine having a great versatility.

Further, according to the present invention, since the slide shafts 58 are alternately arranged on the large circumference and the small circumference centered on the rotation axis L ₀ of the rotor shaft 37, the marking head 17 itself It can be made compact.

[Brief description of drawings]

1 to 15 show an embodiment of the present invention, in which FIG. 1 is a plan view of a marking machine, FIG. 2 is a front view thereof, FIG. 3 is a side view thereof, and FIG. 4 is a marking portion. FIG. 5 is a longitudinal sectional view, FIG. 5 is an assembled perspective view of a marking head, FIG. 6 is a plan view taken along the line VI-VI in FIG. 4, and FIG.
FIG. 8 is a plan view of the same line VII-VII, FIG. 8 is a plan view of the same line VIII-VIII, FIG. 9 is a plan view of the same line IX-IX, and FIG. Front view, FIG. 11 is a side view of the same, FIG. 12 is a layout view of pulleys, FIG. 13 is a plan view of a reversing machine, FIG. 14 is a front view of the same, FIG. 15 is a longitudinal sectional view of the same, and FIG. FIG. 17 and FIG. 17 show a conventional example, FIG. 16 is an overall perspective view of a marking machine, and FIG. 17 is a perspective view of a marking head. 34 …… Rotor bearing, 37 …… Rotor shaft, 58 …… Slide shaft, 61 …… Stamp rod, 72 …… Abutting part,
83 …… Position holding means, 96 …… Pusher, L ₀ …… Rotation axis.

Claims (2)

[Claims] 1. A rotor bearing (34), a rotor shaft (37) which is supported by the bearing (34) and rotates around a rotation axis (L ₀ ), and the rotation axis (L ₀ ). A plurality of parts that are provided on a circumference centered on the axis of rotation and parallel to the rotor shaft (37), and that rotate around the rotation axis (L ₀ ) as the shaft (37) rotates. Book slide shaft (58)
A stamp rod (61) slidably attached to each slide shaft (58) in a direction parallel to the rotation axis (L ₀ ), and at least 1 around the rotor bearing (34). And a pusher (96) which is provided to project and retract in the direction parallel to the rotation axis (L ₀ ). The stamp rod (61) is provided with the slide shaft (58). ), The stamp rod (61) is returned to its original position when the stamp rod (61) is displaced in a direction parallel to the rotation axis (L ₀ ). A marking head of a marking machine, characterized in that an abutting portion (72) to which the pusher (96) is concerned is projected from a side of the marking head. 2. The slide shaft (58) is arranged alternately on a large circle and a small circle centered on the rotation axis (L ₀ ) of the rotor shaft (37). The marking head of a marking machine according to claim 1, which is characterized in that.