JPH0445424B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an improvement in a material feeding device for a marking machine that feeds various marking materials such as hollow elongated tubes.

(Prior art) This type of marking machine applies a mark to the marking material by press-contacting the heated type wheel attached to the head to the marking material via a colored tape, but in this case, the number of marking materials to be marked is one pair. It is fed by a feeding roll. Marking materials need to have constant intervals when marking characters, etc., but in addition, when cutting marked materials, it is necessary to start and end at intervals larger than the intervals between characters, etc. be. Since the marking pitch and the cutting pitch are thus different, it has been impossible to give different feeding pitches to the feeding roll.

(Object of the Invention) An object of the present invention is to provide a material feeding device for a marking machine that can easily provide a marking pitch and a cutting pitch to a marking material.

(Structure of the Invention) The material feeding device of the marking machine of the present invention presses the type ring of the head which can be lowered and lowered through the colored tape to mark the type, and then the cutter is used to press the type ring through the colored tape. a pair of feed rolls for feeding the marking material to be cut at the feed rolls, at least one of the feed rolls being connected to a roll drive means, the roll drive means each having a first and a first and second pinion connected via a second one-way clutch, and first and second clutches meshing with the first and second pinions, respectively, the first clutch is disposed opposite to the rack operating member so as to be able to engage with a rack operating member that is integrally provided with the head and moves up and down with the head, and the second rack is engaged with a cam that rotates to drive the cutter. The first directional clutch is set to idle when the head is lowered and rotates the feed roll in the feeding direction only when the head is raised, and the second one-way clutch is configured to idle when the cutter is not operating. The feed roll is configured to rotate in the feed direction only upon operation of the cutter, and the first and second pinions engage adjustable stops that set the area of rotation thereof and define the feed pitch of the marking material. It is characterized by having a stud.

With this arrangement, the marking pitch and the cutting pitch are determined by the marking material feeding pitch set by the corresponding adjustable stopper, so that the feeding roll can be moved to a predetermined pitch during marking and cutting. It can be seen that since it is possible to give a predetermined marking pitch, it is possible to obtain a predetermined marking pitch, and also to perform predetermined cue and bottom cues during cutting.

(Embodiment) An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a marking machine 12 equipped with a material feeding device 10 according to the present invention. A selected type 16a of the provided and heated type wheel 16 is pressed against a marking material 20 such as a long hollow tube through a colored tape 18 to be marked. The marking material 20 is fed to the marking position 22 via the material feeding device 10 of the present invention,
Cut by the cutter 24. At the marking position 22, the marking material 2 passes through the material receiver 26.
0 on the type wheel 16 via the colored tape 18
6a is pressed to apply markings. In addition, the cutter 24 is used for marking material 2
A pair of guide plates 2 having a through hole through which 0 passes.
8, 28' and these guide plates 28, 28', and a cutting tool 30 for cutting the marking material 20.
It consists of.

As shown in FIG. 2, the material feeding device 10 of the present invention includes a pair of feeding rolls 3 rotatably supported by a fixed frame 310 to feed marking material 20.
2,32' and one feed roll 3
2' is connected to a roll drive means 34 including a one-way clutch, which will be described later, to drive these feed rolls 3.
2 and 32' are interconnected by mutually meshing transmission gears 36 and 36'.

As shown in FIGS. 2 to 4, the roll driving means 34 includes first and second pinions 38, 40 connected to one feed roll 32',
and a first and second rack 42, 44 meshing with a second pinion 38, 40, respectively;
A second clutch 42 is disposed opposite the rack operating member 46 so as to be able to engage the rack operating member 46 which is integrally provided with the head 14 and moves up and down together with the head 14.
4 engages with a cam 48 that rotates when the cutter 24 is driven. In addition, the first and second pinions 3
8 and 40 are adjustable stoppers 5 that determine the feeding pitch of the marking material 20 by setting the rotation range thereof;
It has studs 38a, 40a that engage with 0,52. The first and second racks 42, 44 are arranged in a rack box and are normally urged downward in FIGS. 2 and 4 by springs (not shown).

The first and second pinions 38, 40 each include one-way clutches 39, 41 that allow rotation in only one direction and prevent rotation in the other direction. 1st
and a second directional clutch 39, 41, respectively, to one of the feed rolls 32'. 1st
The one-way clutch 39 is set to idle when the head 14 is lowered and rotates the feed rolls 32, 32' in the feeding direction only when the head 14 is raised, and the second one-way clutch 40 is When the cutter 24 is not in operation and the second clutch 44 is lowered by the spring, it spins idly, and the feed rolls 32, 32' are fed only when the later clutch 60 is engaged and the cutter 24 is operated. It is set to rotate in the feeding direction. Rack operation member 46
As can be seen in particular from FIGS. 2 and 4, when the head 14 is in its lowest position and the first rack 42 is biased by the spring to its lowest position, the first rack 42 It consists of a threaded rod 54 screwed into the extension frame 14a of the head 14 so that the distance d relative to the head 14 can be adjusted. Also, cam 48
is driven by a motor 56 via a belt transmission mechanism 58 and a clutch 60, as shown in FIG.
Clutch 60 is engaged upon receiving a command to cut marking material 20 by cutter 24.

Next, the operation of the material feeding device of the present invention will be described as follows.
A marking is applied to the marking material 20 by raising and lowering the head 14. During this time, the cam 48 does not rotate due to the disengagement of the clutch 60, so the lock 4
4. Pinion 40 is not driven. On the other hand, when the head 14 is lowered, the rack 42 is also lowered by the spring, but the pinion 38 is rotated idly by the one-way clutch 39 without rotating the feed roll 32'. When the head 14 rises after marking at the lowest position, the screw rod 54, which is the rack operating member 46, rises. As already mentioned, the threaded rod 54 is spaced a distance d from the first rack 42 in the lowest position of the head 14 with the first rack 42 in its lowest position due to the spring. Since they are facing each other, the screw rod 5 along with the head 14
4 rises, the first rack 42 is not pushed up by the threaded rod 54 until it rises a distance corresponding to the distance d.
2 remains stopped, and when the screw rod 42 engages with the first rack 42, the first rack 42
rises against the spring. As the first rack 42 rises, the first pinion 38 rotates, and at this time, the one-way clutch 39 is in the direction of transmitting the rotation of the pinion 38 to the feed roll 32, so the feed rolls 32', 32 Marking material 2 for rotating
0 is sent. Further, the rotation range of the first pinion 38 is determined by the stud 38 at the adjustable stopper 50.
This is until a collides. Therefore, the marking pitch depends on the set position of the adjustable stopper 50 and the set distance d of the rack operating member 46 with respect to the rack 42.
determined by.

On the other hand, when a command is given to drive the cutter 24 after marking is completed, the clutch 60 is engaged by this command, and the cam 48 rotates before the cutting tool 30 is lowered, thus pushing up the rack 44 and rotating the pinion 40. rotating the feed rolls 32', 32,
Feed the marking material 20. This cutting pitch is determined by the position of the adjustable stopper 52. The rack 44 is lowered by the spring when it engages with the small diameter surface of the cam 48, but at this time the pinion is idled by the one-way clutch 41 and the feed rolls 32', 32 do not rotate. .

In this way, as shown in FIG. 6, it is understood that the marking pitch P1, the beginning pitch P2, and the tailing pitch P3 can be set appropriately.

(Effects of the Invention) According to the present invention, as described above, the marking pitch and cutting pitch can be easily given to the marking material, and since it is only necessary to adjust the adjustable stopper, the operation is easy and the work is easy. There is a practical benefit of improving sexuality.

[Brief explanation of drawings]

FIG. 1 is a schematic sectional view of the marking machine, FIGS. 2 to 4 are front views of the material feeding device according to the present invention,
A top view and a side view of the roll drive means for the marking pitch, FIG. 5 is a system diagram showing the drive system of the cam, and FIG. 6 is a cut of one of the marking materials marked and cut by the apparatus of the invention. FIG. 3 is a front view of the piece. 10... Material feeding device, 12... Marking machine, 14... Head, 16... Type wheel, 16a...
...Print type, 18...Colored tape, 20...Marking material, 22...Marking position, 24...Cutter, 32, 32'...Feed roll, 34...Roll driving means, 38, 40...Pinion, 38
a, 40a... Stud, 39, 41... One-way clutch, 42, 44... Rack, 46... Rack operating member, 48... Cam, 50, 52... Adjustable stopper, 56... Motor, 60 ...Clutch.

Claims (1)

[Scope of Claims] 1. When the head is lowered, a type ring of a movable head is pressed against a colored tape, marking is carried out, and then marking material to be cut at predetermined intervals by a cutter is fed. Consisting of a pair of feeding rolls, at least one feeding roll is
In a marking machine material feeding device connected to a roll drive means, the roll drive means:
first and second pinions connected to the one feed roll via first and second one-way clutches, respectively; first and second pinions meshing with the first and second pinions, respectively; racks, the first rack being disposed oppositely so as to be able to engage with a rack operating member that is provided integrally with the head and moves up and down together with the head, and the second rack is engaged with a cam that rotates when the cutter is driven, and the first one-way clutch idles when the head is lowered and rotates the one feed roll in the feeding direction only when the head is raised. The second one-way clutch is set to idle when the cutter is not operating and rotate the one feeding roll in the feeding direction only when the cutter is operating; Material feeding device for a marking machine, characterized in that the first and second pinions have studs that engage adjustable stops that set the range of rotation of the pinions and thereby define the feeding pitch of the marking material. 2. The material feeding device for a marking machine according to claim 1, wherein the rack operating member is a screw rod capable of adjusting the distance from the first rack at the lowest position of the head. .