JPS58160236A - Feeder for tape-shaped label - 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 This is a book about a device that feeds a device to a secondary device such as a cutting machine that operates at a low speed.

A device that feeds a rolled tape by a certain size at full speed for new printing or cutting.
can be easily produced.

That is, it can be pulled out using a drum or the like rotating at a constant speed.

However, as shown in Figure 5, Tanabata 1 of 11 has already been printed (
For example, if a tape with repeated labels (L) is to be supplied to a cutting machine or reprinting machine that operates at foot speed, it cannot be carried out due to continuous darkness. .

This is because if a constant speed tape is supplied to a cutting machine or the like operating at a constant speed, cut pieces of the same size will be produced.

Take can do it.

The dimensions of the A-turns printed in Figure 5 are not exactly the same dimensions, but are different from those of t1 and 2 in Figure 5.

The reason is the accumulation of slight deviations in the printing potential on the tape,
Accumulation of elongation and shrinkage of the tape itself during printing, elongation when feeding while being pulled strongly at high speed, effects of humidity, fill conditions and age when stored in roll form, and when withdrawing. There are many other conditions such as slip and resistance on the roll side for S* output, etc. Therefore, if a fixed size was pulled out and cut, the cutting position would gradually change regardless of the position of the printing chisel turn. Therefore, it is only possible to print label f4 that matches the printing position.

The present invention has been made in this respect, and an object of the present invention is to provide a feeding device as described below.

<A> A feeding device capable of feeding an already printed tape to a cutting machine operating at a constant speed at high speed and accurately, at a speed that can process seven turns at a time.

〈Mout〉 Even when sending different tapes such as printed labels or other tapes with different lengths or different lengths, this is a versatile feeding device that can be handled without replacing parts. #t6 Next Examples will be described below.

<A> Feed Drum The feed drum (1) is fixed integrally with the main shaft (31) at the upper end of the main shaft (31) as shown in Fig. 1.
Whether it is a drum, there is an auxiliary drum (11) arranged parallel to the circumferential surface of this feed 6p ram (1) and configured to be rotatable.
Both drums (1) (11
) is used to transport the tape (T).

The outer periphery of the feed drum (1) is configured to be somewhat shorter than the shortest length of the longevity label (L) printed on the tape (T) to be handled.

In other words, the tape (T) expands and contracts, but the feed drum (
The outer circumference of 1) is somewhat shorter than the length of the expected shortest label (L).

Therefore, the tape (T) to be handled is different from the label (L).
This feed drum (1) needs to be replaced depending on the length of the feed drum (1).

Therefore, the feed drum (1) is detachably attached to the main shaft (31).

<Entrance> Speed governor The speed governor W is composed of two spur gears that mesh with each other, that is, a main shaft gear (3) and a slave shaft gear (2).

The number of teeth on the main shaft gear (3) is smaller than the number of teeth on the slave shaft gear (2).
Construct slightly less.

In other words, the number of teeth (Z3) of the slave shaft gear (2) is
) is configured so that the ratio (over) of the number of teeth divided by the number of teeth (Zs) is greater than 1.

The main shaft gear (3) is fixed integrally with the main shaft (31) below the feed drum (1) of the main shaft (31), and the other slave shaft gear (3) is fixed below the feed drum (1) of the main shaft (31). Drive gears (25) (35) with the same outer diameter and the same number of teeth are connected to bearings (22) (3
2) is rotatably provided.

Electromagnetic clutch, (Fig. 2) The drive gear (35) on the main shaft (31) is always at 19 speed ([Co 1 rotation 1 - the driving gear (4) that can be locked is in mesh with the drive gear (35). The conclusion of the book @ (31) (21) (7) ?Moving gear (3
5) (25) The shaft cIl) (21) rotates independently.

The rotation of this moving gear (35025) is controlled by the 1,400-1 axis (
31) In order to transmit data to (21), electromagnetic clutches (Os) and (Os) as shown in Figure 2 of the body are provided.

Above the drive gear (35) on the main shaft (31), a clutch disc (33) is provided which is movable up and down with respect to the main shaft (31) and is restrained in the direction of rotation.

Furthermore, an electromagnet (34) is arranged above the clutch plate (33) to form an electromagnetic clutch (03) that is actuated by a timing signal from a phototube (R), which will be described later.

In other words, only when the electromagnet (34)-s timing signal is input from the phototube (R), the clutch disc (33) adheres to the top surface of the drive center (35), and the rotation of the splitting gear (35) is transmitted to the main shaft (31h). Configure it to do so.

ijtllll(21)upper(') [m ri5 tsuf (
02) +1 King m (31) Electromagnetic clutch (0'
A book with the same structure as s) will be provided.

That is, above the drive gear (25), there is a clutch disc (23) installed so that it can move up and down on the slave shaft (21);
Electromagnetic clutch (Os) consisting of an electromagnet (24) activated by the input of a timing signal from the light 1t'1l (R)
The electromagnet (24) operates and the clutch disc (23)
Drive gear (25) only when glued on the top surface of drive gear (25)
25) is configured to transmit the rotation to the slave shaft (21h).

Electromagnetic clutches (On) (C) on both shafts (31) (21)
For example, when the electromagnetic clutch (Os) of the main shaft (31) is closed by the timing signal from the phototube (R), the electromagnetic clutch (01) of the slave shaft (21) is opened, and When the electromagnetic clutch (C8) is closed, the electromagnetic clutch (C3) on the center axis (e) is configured to operate alternatively.

Therefore, although both electromagnetic clutches (Os) (Os) may be opened at the same time, they will not be closed at -1.

Ω At the same time as printing the label on the cheese mark and phototube tape (T), print the mark (M) on the back side or on an appropriate yellow area.

The pitch between the mark (M) and the next mark (M) is the same as the tape (
This is the interval between one label printed on T), and the mark *Vi is due to the elongation of the tape, the accumulation of printing errors, etc., and since both are printed at the same time, the conditions are all the same as for the label.

On the other hand, the city pipe (1't) has a light emitting part and a light receiving part,
We will explain the use of a commercially available product f that turns on when the light beam from the light emitting part hits a well-reflected part (outside the black mark) and the light receiving part captures the reflected light, but other models can be used in the same way.

The light 11i tube (R) does not remain lit, but the drive gear (
25) Configure so that the KTE of (35) turns on exactly once every rotation.

To do this, for example, a timing switch (not shown) may be inserted between the power source and the phototube (R).

The timing switch has a structure in which, for example, a slit is opened in a part of a disk and phototubes are sandwiched between the top and bottom, and the rotation speed of this disk is equal to the rotation speed of the drive gears (25) (35)/
Each minute, set the same as each drive gear (25) (3
5) The timing switch closes once per rotation,
The phototube (R) will emit light.

Next, the operation will be explained.

<A> Tape set Tape (T) t that already has a label printed on it.

- Unwind the feed drum (1) and the auxiliary drum (
11).

Then, the next processing equipment such as cutting blades and secondary printing machines will be installed.
Take it to t.

In this state, the light m1tt (R1 emits light and each mark (M)
The position of the tape (T) and the slit position of the timing switch are determined so as to be sensitive to the following.

<Exposure> As mentioned above, the constantly feeding drum (1) is fixed to the main shaft (31)K, and the main shaft (31) and the drive gear (35) are connected by an electromagnetic clutch (C3).

Therefore, at all times, the fed drum (1) continues to rotate integrally with the rotation of the drive gear (35).

On the other hand, the electromagnetic clutch (On) i! of the slave shaft (21) The clutch disc (23) is separated from the drive gear (25) by 11 degrees, and the drive gear (25) is in a free state with respect to the slave shaft (21).

Therefore, it is as if the slave shaft gear (2) 'fA circuit does not normally exist.

By the way, since the outer circumference of the feeding drum (1) is somewhat shorter than the length of one label, it is possible to feed the cheese ('I'l) by the length of one label with one rotation of the feeding drum (1). Can not.

However, the phototube (几) is 1 rotation per rotation of the feed drum (1).
It lights up every time.

Therefore, the passage time of the mark (M) on the label sent by the drum (1) gradually continues for -j4ft with respect to the lighting time.

However, while the light emitted from the optical IJJ tube (R) is hitting the mark (M), it is not reflected and no timing signal is generated.

<No.> When the light beam emitted by the tape feeder 01 (third) phototube (R) deviates from the mark (M), the phototube (R) instantly reacts and a timing signal is emitted.

This timing signal is applied to the electromagnetic clutch (O) of the slave shaft (21).
l) and the clutch disc (23) immediately switches to the drive gear (2).
5), the follower shaft (21) is driven by the drive shaft (21).
5) It will be in a state of rotation due to the force.

at the same time! ! ! Since the electromagnetic clutch (Cm) Fi of the shaft (31) is opened, the rotation of the drive gear (35) is straight! ! Friends axis (3
1) will no longer be transmitted.

Therefore, the speed at which the tape (T) is fed by the feed drum (1) is determined by the ratio of the number of teeth between the slave gear (2) and the main gear (3).

Here, as mentioned above, change the number of teeth of the slave gear (2) to the main shaft gear (
3), the peripheral speed of the main shaft gear (3) increases.

Along with this, the speed at which the tape (7) is fed by the feed drum (1) increases very slightly.

(> Excessive tape feed (Fig. 4) When the tape (T) feed speed increases, the light beam f' emitted from the optical W tube (R) hits the mark (M), and the phototube (R) reflects. It does not lose its wealth and becomes unresponsive.

As a result, the electromagnetic clutch (0) of the slave shaft (21) is disconnected, and the slave shaft gear (2) is in a free state.
3) side 1 [Magnetic clutch (03) is input, and the main shaft (31
) Chihiro's rotation starts, and Chihiro 2' (T) is fed at the previous feeding speed by the inward feed drum (1).

◇〉 In other embodiments, an electromagnetic clutch (Ox
We have explained a method in which a clutch (Os) is provided and operated selectively, but the clutch (Os) on the main shaft (31) side? 1~
It is also possible to replace it with a conventional one-sided clutch.

In this case, ■ When there is no input to the slave shaft side clutch (0), the rotation of the drive gear (35) is transmitted to the main shaft (31) via the one-sided clutch, and the feed drum (1) is do.

■ When the slave shaft side clutch (C) is input, the rotation of the drive gear (25) is transmitted to the slave shaft (21), passes through the slave gear (2), the main shaft gear (3), and then the main shaft (31). That is, the feed drum (1) is rotated.

In this case, the number of teeth on the slave shaft gear (2) is slightly larger than the number of teeth on the main shaft gear (3), so the main shaft gear 11+(31) is the driving gear (
The main shaft (35) rotates at a slightly higher speed than the main shaft (35).
1) and the drive gear (35) allows the drive gear (35) to rotate at high speed, so no problem occurs.

As described above, in one embodiment of the present invention, the main shaft gear (3) is the main shaft gear (31) of the two gears having slightly different numbers of teeth.
) to the drive gear (35)K via the electromagnetic clutch (0
3) Connect via a one-way clutch and connect the slave shaft gear (
2) is also connected to the drive gear (25) via an electromagnetic clutch (raw) through the central slave shaft, bringing both gears into contact, and a tape (T) is placed above the main shaft (31) of the main shaft gear (3).
), the feed drum (1) is attached to the feed drum (1), and the feed drum (1) is
) is brought into contact with the auxiliary drum (11), and the feed drum (
1) and the positional relationship between the check mark (M) on the tape (T) transferred between the auxiliary drum (11) and the lighting timing of the phototube (R). Each electromagnetic clutch (01) (Os) is the one for selectively engaging and releasing the clutch.

In other words, the feed drum (1) is provided with a rotary tube directly connected to the main shaft (31) from the drive gear (35), or with a slave shaft gear (31).
2) Rotation is applied to the main shaft (31) through the main shaft (31), but the rotational driving force is alternatively transmitted.

Therefore, it is possible to cope with the transfer of many types of tapes (T) with different check mark CM) intervals by simply exchanging the feed drum (1) with a different drum diameter.

Therefore, there is no need to replace many types of parts in response to changes in the size of the tape (T) to be transported as in the past, and a wide range of tapes can be handled by simply replacing one feed drum (1). Natsu nine.

[Brief explanation of the drawing]

wc1 diagram: Explanatory diagram of the state of sending tape-shaped labels, fgZ
Figure 3.4: Diagram showing the relationship between tape marks and photocells, Figure 5: Explanation diagram of tape-shaped labels, 1: Feed P ram, 2: Main shaft gear, 3: Slave Shaft gear, O,,
03: Electromagnetic clutch. Patent applicant: Genyo Jidoiso Co., Ltd.

Claims (1)

[Claims] 1. Select whether to install the main shaft and the slave shaft in parallel and transmit the rotational driving force directly to the main shaft, or to transmit the driving force to the main shaft via a gear on the slave shaft. A device for feeding tape-shaped labels, etc. between the feed drum on the main shaft and the auxiliary drum 2 The main shaft Klfl king shaft gear is fixed, the slave shaft gear is fixed on the slave shaft, and the main shaft gear is The number of teeth is configured to be less than the number of teeth of the slave shaft gear,
. Clutches are attached to both shafts, and the power of the rotating parts is selectively transmitted to the main shaft via either clutch, between the feed drum on the main shaft and the auxiliary drum. It is configured to send tape-shaped labels, etc. % Pestle Scope of Claims Section 1 8r! The invention described.