JPS6014947Y2 - Liquid supply device that can change the position of the pump - Google Patents

Description

[Detailed description of the invention] This invention relates to a liquid supply device that can change the posture of a peristaltic pump, and the purpose of this invention is to apply it to presses, printing machines, and other vertical or horizontal reciprocating or rotating mechanisms. It is an object of the present invention to provide a device that can be linked to any of the above-mentioned mechanisms and that can conveniently perform oiling, ink supply, etc. by using a mechanical device.

A feature of the liquid supply device according to this invention is that it includes a pump case 2 that incorporates pressure transfer devices 5 and 12 that sequentially compress and release the elastic tube 4 that guides the liquid, and that the pressure transfer devices 5 and 12 are connected to a drive source. A peristaltic pump 1 with a drive shaft 6 installed therein, a fixed surface 20 located in a direction in which the axis of the drive shaft 6 is perpendicular and through which the drive shaft 6 does not penetrate, and this fixed surface 2.
A pump coupling body 19 having a fixing surface 21 perpendicular to 0 and fixed to the pump case 2, and a fixing surface 20 of the pump coupling body 19.
Or a mounting portion 39 that has a coupling surface 36 that removably connects the fixing surface 21 and that attaches the liquid supply device to another device.
on the upper surface of the lid 41 of the liquid container 43, which is provided with a joint plate 33 having a
It is composed of a liquid container 43 to which a joining plate 33 is connected.

This idea will be explained below with reference to the drawings.

The peristaltic pump 1 is constructed by press-fitting and fixing an elastic tube 4 having a larger diameter than the hole diameter into two hole-shaped holding portions 3 provided at diametrically opposed locations on the surface of an annular pump case 2. A portion of the elastic tube 14 located at is placed along the circular inner wall 5 of the case 2.

The case 2 has on its surface a bottom plate 7 with a hole for bearing the drive shaft 6 and a transparent cover plate 8, and the bottom plate 7 is provided with an annular wall 9 protruding downward from the bottom plate 7.

A disk 10 that rotates together with the drive shaft 6 is attached to the drive shaft 6 which is supported by the bottom plate 7 and the cover plate 8, and six pins 11 are arranged at equal intervals on the concentric circle of the drive shaft 6 on the disk 10. A rotary roller 12 is attached to each pin 11, and these are built into the case 2, and the elastic tube 4 is sequentially compressed and released by the roller 12.

In order to link the drive shaft 6 to a drive source, a one-way clutch 13 is attached to the drive shaft 6 extending downward from the bottom plate 7, and the clutch 13 is press-fitted into a holding cylinder 15 with a flange 14 and fixed. 15 and insert the base end of the lever 16 into the flange 1 to position the lever 16 in a direction orthogonal to the drive shaft 6.
It is fixed to 4.

The clutch 13 interposed between the holding cylinder 15, which is the outer ring, and the drive shaft 6, which is the inner ring, is a roller-type overrunning one-way clutch.

so that the lever 16 can swing around the drive shaft 6,
A slight gap is formed between the flange 14 and the bottom plate 7, and the coil spring 17 wound around the holding cylinder 15 is positioned there.
One end of the coil spring 17 is connected to the bottom plate 7, and the other end is connected to the flange 14.
The holding cylinder 15 is fixed to the holding cylinder 15 and can swing freely by twisting and returning the coil spring 17.

The arch-shaped pump assembly 19, in which the annular wall 9 is fitted into the through hole 18 and is fixed to the pump case 2, has a fixing surface 20 located in a direction perpendicular to the axis of the drive shaft 6, and a fixing surface 20. It has a right-angled fixing surface 21, and the fixing surface 20.21 is shaped by a bent portion 23.24 of a bent piece 22 which is bent in the middle to form an L-shape as a whole.

The bent portion 23 covers an opening opposite to the opening of the through hole 18 into which the pump case 2 is inserted by screwing, and the bent portion 24 is fixed to the rectangular surface 25 of the pump assembly 19 by screwing. It is.

The bent portion 23 is provided with an engagement hole 26 and a screw hole 27 for changing the posture of the peristaltic pump 1, and the bent portion 24 is provided with an engagement hole 28 and a screw hole 29.
, 29 are respectively provided with cutouts 30, 31 on the inner surface of the pump coupling body 19.

Further, an elongated hole 32 is provided in the arched surface of the pump assembly 19 along the arch direction, and the lever 16 is made to protrude from the elongated hole 32.

A semi-elliptical joint plate 33 that removably connects the fixing surfaces 20.21 is provided in a manner that corresponds to the engagement hole 26 and the screw hole 29, and the engagement hole 28 and the screw hole 27 provided in the fixation surface 20.21, respectively. Protrusion 34
．． 35 is provided on the coupling surface 36, and the protrusion 34 is provided in the engagement holes 26, 2.
A portion of the coupling surface 36 is cut out to form a claw shape so that the protrusion 35 can be engaged with the screw holes 27 and 29.

Then, a claw-like projection 34 is inserted into the engagement hole 28 of the pump combination body 19.
The pump assembly 19 is fixed to the peristaltic pump 1 by engaging the screws 38 inserted through the holes 37 into the screw holes 27 and screwing them.
is connected to the joint plate 33.

At the edge of the joint plate 33, there is a mounting portion 3 bent from the edge.
9, and a mounting hole 40 is provided there.

The lid 41, which is connected to the joining plate 33 by screws, is connected to the liquid container 43 with a translucent container body 42 through which the water level can be seen.
It consists of:

The lid 41 has a concave portion 44 in which the conduit attachment hole 4 is formed.
5 and an air guide hole 46 are provided, and a groove 47 is provided on the upper surface of the peripheral wall of the recessed portion 44.

One end of the conduit 48 bent from the middle is fixedly attached to the conduit attachment hole 45, and its tip is positioned inside the container body 42, and the other end is buried in the groove 47 and exposed to the outside of the lid 41. The suction side of an elastic tube 4 extending from the peristaltic pump 1 is connected to the tip thereof.

Note that the reference numeral 49 in the figure indicates the discharge side of the elastic tube 4.

Since the liquid supply device of this invention is constructed as described above, when the mechanical device for the purpose of supplying liquid, for example, the link mechanism 51 linked to the ram 50 of a press machine, is reciprocating horizontally, , the liquid supply device is attached to the press machine by the attachment part 39, and the lever 16 is positioned on the link mechanism 51 with the fixing surface 21 fixed to the bonding plate 33.

When the link mechanism 51 reciprocates due to the rotation of the ram 5◎, the lever 16 swings about the drive shaft 6.

That is, the lever 16 is pushed by the link mechanism 51 and rotates clockwise in FIG. 1.

The clutch 13 held in a holding cylinder 15 linked to the lever 16 rotates together with the drive shaft 6 in the same direction due to the wedge action of the rollers.

Disc 1 that rotates together with the drive shaft 6 due to rotation of the drive shaft 6
The roller 12 attached to the lever 16 revolves around the drive shaft 6 in proportion to the amount of movement of the lever 16, and the revolving roller 12 rotates while sequentially compressing and releasing the elastic tube 4 at regular intervals.

When the link mechanism 51 retreats, the pressure on the lever 16 is released.

As a result, the lever 16 becomes free, moves by the rebound force of the coil spring 17 that had been contracted, and returns to its original position.

When the lever 16 performs the return operation, the clutch 13
is unrelated to the drive shaft 6, the drive shaft 6 rotates by an amount proportional to the amount of movement of the lever 16 and then stops, and the roller 12
Also stops squeezing and releasing the elastic tube 4.

Therefore, when the link mechanism 51 performs reciprocating motion, the lever 16 swings, and the clutch 13 causes the drive shaft 6 to swing.
The roller 12 rotates intermittently in one direction, and the roller 12
It rotates intermittently while sequentially compressing and releasing at regular intervals.

Therefore, liquid is sucked from the liquid container 43 and discharged through the entire length of the elastic tube 4.

When the liquid is sucked, outside air corresponding to the amount of liquid flowing out is introduced from the air guide hole 46 of the liquid container 43, and the atmospheric pressure inside the liquid container 43 is kept constant.

Next, when mounting it on a mechanical device having a vertical rotation mechanism, for example, a cam (not shown) is attached to the vertical rotation axis, and from the state where the fixed surface 21 is fixed to the joint plate 33, the fixed surface 20 is The posture of the peristaltic pump 1 is changed while it is fixed to the joint plate 33, and the liquid supply device is attached to the mechanical device using the mounting portion 39, and the lever 16 is attached to the cam.
position.

That is, while removing the screw 38 screwed into the screw hole 27 through the protrusion 35, the protrusion 3 relative to the retaining hole 28 is removed.
4, the fixed surface 21 of the pump assembly 19 is separated from the joint plate 33, and then the protrusion 34 is engaged with the engagement hole 26, and the screw 38 reinserted from the protrusion 35 is inserted into the screw hole 29. The fixing surface 20 of the pump coupling body 19 is connected to the coupling surface 36 of the coupling plate 33 by screwing (FIG. 8).

In the above embodiment, in order to change the attitude of the pump, an engaging hole 26.2B, screw holes 27, 29, protrusions 34, 35, and a hole 37 are provided on the fixing surface 20.21 and the coupling surface 36, and the screws 38 are used to connect the two. However, the same effect as above can be obtained by slightly changing the structure of the related parts.

That is, in the first modified example shown in FIGS. 9 and 10, the short surface 25 of the pump assembly 19 is the fixed surface 21, and the short surface 25 is opposite to the opening of the through hole 18 into which the pump case 2 is fitted. The opening surface is the fixed surface 20.

Recesses 52 and 53 are formed in the fixed surface 20 and fixed surface 21, respectively, and recesses 52 and 53 are formed in the joint surface 36 of the joint plate 33.
A protrusion 54 is provided for pin-fitting, respectively.

In the second modification shown in FIGS. 11 and 12, dovetail grooves 55 and 56 are formed in the fixation surface 20 and fixation surface 21 of the pump combination body 19 configured similarly to the first modification, respectively, and the joint plate The coupling surface 36 of 33 is provided with projections 57 for engaging with the dovetail grooves 55 and 56, respectively.

Therefore, one recess for the protrusion 54,57 releases the dovetail groove fit, and then the other recess for the protrusion 54,5'7,
By fitting the dovetail grooves, either one of the fixing surfaces 20 and 21 can be connected to the joining plate 33.

In addition to such connection means, bayonet fitting and adhesive tape may also be used.

Moreover, although the number of the fixing surfaces 21 perpendicular to the fixing surface 20 is one, it is also possible to have two or more surfaces.

Furthermore, when a mechanical device having a vertical reciprocating mechanism or a horizontal rotating mechanism is used and the drive shaft 6 is linked to these mechanisms, any suitable one of the fixing surfaces 20, 21 of the pump coupling body 19 is used. may be fixed to the lid 36.

Note that when the drive shaft 6 is linked to a horizontal or vertical rotation mechanism, a coil spring flexible joint can be used instead of the one-way clutch 13, and in this way, the drive shaft 6 can be continuously rotated. .

A one-way clutch 1 is used to intermittently rotate the drive shaft 6.
In addition to 3, known intermittent rotation mechanisms such as a ratchet, Geneva, and barrel cam can be used.

Furthermore, the suction side of the elastic tube 4 may be located directly within the container body 42 without using the conduit 48 to drain the liquid in the liquid container 43.

In this way, in the liquid supply device of this invention, the fixed surface of the pump assembly is removably fixed to the lid of the liquid container, and the attitude of the pump can be changed. It can be applied to either.

Further, since the pump and the liquid container are integrated, there is no need for piping between the pump and the liquid container at the installation site, which greatly simplifies the installation work.

In addition, the entire liquid supply device can be formed vertically, the projected area from above is small, and it is easy to arrange it inside the mechanical device to which it is attached.

[Brief explanation of the drawing]

Fig. 1 is a front view of the device of this invention, Fig. 2 is a plan view of Fig. 1, Fig. 3 is an exploded perspective view of the same device, and Fig. 4 is the main part along line A-A in Fig. 2. A sectional view, FIGS. 5 and 6 are bottom and rear views showing the fixed surface of the pump assembly of the same device, FIG. 7 is an explanatory view showing the linkage state of the drive source and the lever, and FIG. 8 is a FIG. 9 is an exploded perspective view of the main parts showing the first modification; FIG.
Figure 0 is a sectional view taken along the line B-B in Figure 9, and Figure 11 is a cross-sectional view along line BB in Figure 9.
An exploded perspective view of main parts showing a modification, FIG. 12 is C in FIG. 11.
- It is a sectional view along line C. 1... Peristaltic pump, 2... Pump case, 4... Elastic tube, 5, 12...
...Press transfer device, 6... Drive shaft, 19...
... pump combination body, 20, 21 ... fixed surface,
33...Joining plate, 36...Joining surface, 3
9...Mounting part, 41...Lid, 43.
Curve/Liquid container, 46... Air guide hole.

Claims (1)

[Claims for Utility Model Registration] The pump case 2 includes a built-in press transfer device 5, 12 that sequentially compresses and releases the elastic tube 4 that guides the liquid, and the press transfer device 5, 12 includes a drive shaft linked to a drive source. 6
A peristaltic pump 1 in which the axis of the drive shaft 6 is perpendicular, the drive shaft 6 has a non-penetrating fixing surface 20 and a fixing surface 21 perpendicular to the fixing surface 20, and is attached to the pump case 2. Stuck pump combination 1
9, and a connecting plate 33 having a connecting surface 36 that removably connects the securing surface 20 or 21 of the pump assembly 19, and a mounting portion 39 for attaching the liquid supply device to another device.
and a liquid container 43 in which a bonding plate 33 is coupled to the upper surface of the lid 41 of the liquid container 43, which has an air guide hole 46 and an elastic tube 4 attached to the side surface of the lid 41 so that the liquid in the liquid container 43 can flow out. A liquid supply device that can change the position of the pump.