JPS5815180Y2 - Ink roller assembly attachment/detachment device for label printing and pasting machines - Google Patents

Description

[Detailed Description of the Invention] The present invention is an attachment/detachment device for an ink roller assembly, which is particularly suitable for a Liber printing and pasting machine, etc. in which the ink roller is housed inside the machine during operation. -13056
7 (Utility Model Application Publication No. 53-50000).

Conventionally, in this type of ink roller assembly, a handle member having a coil spring interposed therein is detachably attached to a swing lever disposed at the tip of an ink supply device.

Since this handle member protrudes from the tip of the ink roller assembly, the ink roller rolls on the printing surface of the printing device.
When this handle member is used in the so-called pop-out method, in which the type is rotated to the tip of the machine while applying ink to the type, there is no problem.

However, in the so-called storage method in which the ink roller is rotated toward the inside of the machine, the handle member comes into contact with the platen disposed on the bottom surface, making it impossible to rotate the ink roller.

Furthermore, in locking the ink roller assembly and the support member of the link mechanism, the two are held together by a combination of a long groove and a long member, and a lock set in the sliding path between the two members. Since the locking means was used to connect the locking protrusion and the locking groove, there was a problem in that an excessive pressing force or tensile force was required when attaching and detaching the ink roller frame.

The present invention was devised in view of the above circumstances, and even in a system in which the ink roller assembly is stored inside the machine, the handle does not get in the way when the ink roller assembly rotates, and the ink roller It is an object of the present invention to provide an attachment/detachment device that allows an assembly to be smoothly attached to and detached from a support member on the side of a link mechanism, and further secures its locking.

The following will explain the embodiments shown in the drawings.

The ink roller assembly A of the present invention is attached to an ink supply device comprising a storage type one-ink mechanism B provided in, for example, a label printing and pasting machine shown in FIG.

To explain the outline of this machine, a hand lever 2 installed opposite to a grip 1 integrally formed with a pair of machine frames 8, 8,
The return spring 7 is movable about the pivot 3 as a fulcrum.
It is configured to return by

The front side of the hand lever 2 has bifurcated yokes 4, 4, and near the tip of the yoke 4, a printing device 5 having a typeface 6 is fixed on its lower surface.

The pair of multi-joint link mechanisms of the ink supply device have three fixed supporting points: two pivot shafts 30 and 31 pivoted on the yokes 4 and 4, and a pivot shaft 32 provided on the machine frame 8. It is empty.

Thus, the ink roller frame 10 of the ink roller assembly A is attached to the support member 20 located at the tip of the pair of link mechanisms B.
is configured to be detachable.

In detail, as shown in FIGS. 2 to 4, the ink roller frame 10 is formed in a U-shape in plan, and within this U-shape is a large-diameter main ink roller 16 that carries ink, A small-diameter auxiliary ink roller 18 is attached to the roller shaft 17 .
19 is rotatably attached to its side walls 11d and lld.

Also, both side walls 11 d, 11 of this ink roller frame 10
d is formed with a retaining groove 12.12 in its longitudinal direction.

The engagement groove 12 can be engaged with and detached from engagement protrusions 21 and 21 formed on both side walls of the planar U-shaped support member 20 located at the tip of the link mechanism B.

Furthermore, a pair of knobs 13.13 are attached to the front wall 11a of the ink roller frame 10, and the details thereof are shown in FIGS. 2 and 3.

The pair of knob pieces 13.13 are made of a flexible material such as synthetic resin, and have an eccentric base part 13a formed with a protuberance in the direction of lodging at the base, and an eccentric base part 13a that is bent and reduced in diameter at its tip. It has a locking part 13b.

The eccentric base 13a is attached to the front wall 11 of the ink roller frame 10.
It is rotatable by pivot pins 14.14 attached to a pair of mounting portions 15.15 protruding from a.

Further, the eccentric base 13a is configured to be able to engage and disengage from a recess 11b formed in the front wall 11a of the ink roller frame 10 and having a locking end 11C911C.

The locking portion 13b is a locking groove 23a provided in a pair of guide pieces 23.23 of the support member 20 included in the link mechanism B.
, 23a.

Thus, when this ink roller assembly A is engaged with and locked with the support member 20 of the link mechanism B of the ink supply device, the pair of knob pieces 13 and 13 are moved toward the center, respectively, as shown in FIG. Rotate and join each other to stand up.

Next, by pinching the pair of knobs 13, 13 in the upright state and inserting the ink roller frame 10 by aligning the engagement grooves 12, 12 with the engagement protrusions 21, 21 of the support member 20, the Complete the engagement operation smoothly.

Next, as shown in FIG. 3, the pair of knob pieces 13° 13 are rotated outward to lay down, and the flexibility of the knob pieces 13 is utilized to lock the locking portions at both ends. 13b,
13b is latched to a latching groove 23a provided in the guide piece 23 of the support member 20.

Incidentally, when the knob piece 13 is folded down, this eccentric base 13a
rotates around the pivot pin 14, but at this time, it climbs over the locking end 11C of the frame 10 and the recess 11b
By engaging with the handles, each knob piece 13 is locked and maintained in the laid down state.

Next, when the ink in the ink roller is used up and the printing on the label piece becomes faded, or the ink roller becomes unusable due to wear, etc., the entire ink roller assembly A should be removed.
It is removed from the support member 20 of link mechanism B and replaced with an assembly with a new inking roller.

In this case, the removal may be performed by performing an operation opposite to the above-mentioned engaging operation.

For details, see the pair of knobs 13.1 of the ink roller frame 10.
3 from the locking groove 23a of the guide piece 23.23, rotate both the knob pieces 13.13 to stand up, and then pull out the frame 10 in the upright position.

This attachment/detachment (replacement) of the ink roller assembly A is performed in the stationary state shown in FIG.
This is done when the support member 20 is in a state of protruding from the tip of the machine.

Incidentally, on both side walls of the support member 20, there are pivot pins 22 which are pivotally supported by the connection links 26 of the link mechanism B shown in FIG.
, the guide piece 23.23 that comes into contact with a roller (not shown) provided inside the guide link 43, and a locking hole 25 for the spring 24 inserted in the pivot pin 22 are formed. has been done.

Next, to explain the operation of ink supply in this machine, the ink roller assembly A can be moved by completely tightening the hand lever 2 in the stationary state shown in FIG. After passing over the platen 33 and applying ink to the type face 6 of the printer 5, the solid A is stored in the machine upside down as shown in FIG.

At this time, the printing surface 6 of the printer 5 and the platen 33 come into contact with each other, and the label 27 is stamped.

Specifically, when the hand lever 2 is slightly tightened (grasping angle of 3 degrees), the yoke 4 rotates slightly counterclockwise (pushing down direction) about the pivot 3 in conjunction with this.

Then, the link mechanism B of the ink supply device attached to this yoke 4 is displaced and the contact pin 35 of the opening/closing link 34 is moved.
The launching portion 37 of the swing link 36 is brought into contact with the.

That is, since the pivot shafts 30 and 31 pivoted on the yoke 4 are pushed down, the operating link 38 pivoted on the machine frame 8
On one side, the movable fulcrum 39 moves to the right, and on the other side, the movable fulcrum 40 moves almost upward, and at the same time, the swing link 36 rotates counterclockwise about its pivot shaft 31. do.

More specifically, the swing link 36 places the support member 20 and the pivot pin 22 of the ink roller frame 10 at the upper end of its vertical hole 41 in a state where it is pressed by the elasticity of the spring 24, and the guide link 43 It is guided by the horizontally elongated hole 44 and slides to the right.

During this sliding, the main ink roller 16 moves onto the type surface 6 of the printer 5 while maintaining an elastic state, and applies ink.

Next, at the same time as this first ink application, the swing link 36 is rotated counterclockwise about the pivot shaft 31.
The launching portion 37 provided at the end abuts the abutment pin 35 of one of the opening/closing links 34 that is locked with the other opening/closing link 45 .

Next, the contact impact force of the launcher 37 against the contact pin 35 overcomes the elasticity of the spring 46 and further rotates the opening/closing link 34 in the clockwise direction.As a result, the locking protrusion of the opening/closing link 34 Unlock the link 45 and open/close both links 3
4.45 are mutually open (launched).

That is, one opening/closing link 34 rotates clockwise around the pivot shaft 30, and the other opening/closing link 45 rotates counterclockwise around the movable fulcrum 47.

Along with this operation, the auxiliary ink roller 18 applies ink to the typeface 6.

At this time, the ink roller assembly A including the ink rollers 16 and 18 passes over the upper surface of the platen 33 set on the lower surface of the printer 5.

At the end of this second ink application, the pivot pin 22 of the ink roller is moved to the guide link 43 on the one hand.
The right end of the horizontally elongated hole 44 contacts the right end of the horizontally elongated hole 44 .

Next, when the hand lever 2 is further tightened, the guide link 43 and the swing link 36 are both rotated counterclockwise, and each movable fulcrum moves, and the ink roller is moved to the machine frame 8.
It will be stored in the center of the.

Specifically, the ink roller frame 10 having the two ink rollers 16 and 18 is stored upside down on the back side of the printer 5, that is, inside the printer.

At this time, the regulating protrusion 48 of the opening/closing link 34 comes into contact with the displaced connection link 49 and stops the rotation of each link.

The modified multi-joint link mechanism B operates by pressing the hand lever 2 after the printing machine 5 and the label 27 on the platen 33 operate.
Upon release of , the stationary state shown in FIG. 1 is restored.

The attachment/detachment device of the present invention has an ink roller assembly and a link mechanism that can be attached and detached.On the other hand, a pair of knob pieces that can be raised and lowered are formed from a flexible material on the ink roller frame. □ (1) Support of the ink roller frame. The attachment/detachment operation to the member can be carried out smoothly by raising the knob, and since the knob is folded down and locked during ink supply operation, the operation is not hindered.

(2) Since the locking portion of the knob piece is securely latched to the support member, there is no risk that the knob piece will stand up due to the impact when the ink roller is activated or when stamping. The ink roller frame body will not be detached from the support member unnecessarily.

It goes without saying that the present invention can also be applied to a model in which the ink roller pops out in front of the machine.

[Brief explanation of the drawing]

Figure 1 is a side view of a label printing and pasting machine equipped with the ink roller assembly of the present invention, with the front side plate removed;
The figure is a perspective view of the ink roller assembly of the present invention and the support member of the link mechanism, FIG. 3 is a partially cutaway plan view of the assembled state, and FIG. Line sectional view, 5th
The figure shows the operating state of the ink supply device to which the ink roller assembly of the present invention is attached, and is an enlarged side view of the ink roller assembly in the stamping state when it is housed in the machine. In the figure, A... Ink roller assembly, B...
... Link mechanism, 5 ... Printer, 6 ...
- Type surface, 10... Ink roller frame, 12.
12...Engagement groove, 13.13...Flexible member knob, 13a, 13a...Eccentric base, 13b, 13b... Locking part, 14.14・
...Pivot pin, 16...Main ink roller, 18...Auxiliary ink roller, 20...
・Supporting member, 21... Engaging protrusion, 23...
...Guide piece, 23a...Latching groove, 27...
...Label, 33...Platen.

Claims (1)

[Scope of Claim for Utility Model Registration] After the operation of an ink supply device that rolls an ink roller to apply ink to the type surface of a printer, the type surface is brought into contact with the label on the platen surface to perform printing. , in a label printing and pasting machine configured to affix the label to an object, the ink roller is attached to a frame body, and the frame body is engaged and detached from a support member provided at the tip of the ink supply device. a pair of knobs that can be raised and lowered to facilitate engagement and disengagement of the frame from the support member; 1. An attachment/detachment device for an ink roller assembly in a label printing and pasting machine, characterized in that it is provided with a locking means that can be locked with the ink roller assembly.