JPH10274165A - Dispenser device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To extend a usable time of a tube and to accurately deliver a given amount of liquid fluid substance measuring by a method wherein during a rest of a dispenser device for a long time, the closing part, except a lowermost closing part, of a plurality of the closing parts of a tube by a roller support cam and a delivery roller is released, permanent deformation of the tube at the closing part due to closing for a long time is prevented from occurring. SOLUTION: A dispenser device 10 is formed such that through running of a delivery roller 15 as a tube 16 is pressed by the delivery roller 15 and a roller support cam 31 rotatably mounted on a positive winding transmission member 26, a liquid fluid substance 19 in the tube 16 is delivered. In this case, during stoppage of the dispenser device 10, a release door 13 is released, the upper member 31A of the roller support cam 31 is separated away from the tube 16 to release the upper closing 41 of the tube 16, and only the lowest closing part 42 is closed and flow down of the liquid fluid substance 19 is prevented from occurring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispenser device, and more particularly to a closed portion other than a lowermost closed portion of a plurality of closed portions of a tube formed by a roller receiving cam and a discharge roller when the dispenser device is stopped for a long time. To prevent permanent deformation of the tube at the closed portion due to long-term closing, thereby extending the usable time of the tube, and discharging while accurately measuring a predetermined amount of liquid fluid over a long period of time. The present invention relates to a dispenser device capable of performing such operations.

[0002]

2. Description of the Related Art An elastic tube 2 is connected to a discharge roller 3.
The dispenser device 1 that runs while pressing against the roller receiving cam 4 and discharges while measuring the liquid fluid 5 filled in the tube 2 measures an accurate amount of the liquid fluid 5 with a simple mechanism. 10 and 11, it is necessary to press the opposed surfaces 2a of the tube 2 until they come into close contact with each other in order to prevent the liquid fluid 5 in the tube 2 from flowing down when stopped. However, the conventional dispenser apparatus 1 has a structure in which the tube 2 is pressed by the discharge roller 3 and the roller receiving cam 4 at a plurality of locations. Therefore, the same position of the tube 2 is kept pressed for a long time. There has been a problem that the pressing portion 2b of the tube 2 is deformed into a concave state, and it becomes impossible to measure an accurate amount of the liquid fluid 5.

For this reason, the deformation state of the tube 2 is checked and managed, or a new tube 2 is periodically checked.
Had to be replaced, which required considerable man-hours for maintenance.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to eliminate the above-mentioned drawbacks of the prior art, and an object of the present invention is to provide a system in which the dispenser device is stopped.
A tube that is held by a discharge roller that runs while being rotatably mounted at equal intervals on a positive winding transmission member and a roller receiving cam that is formed into a concave curved surface until opposing surfaces of the tube are in close contact with each other. By closing and closing only the lowermost closing portion of the plurality of closing portions, and opening the other closing portions by operating the opening mechanism, to prevent permanent deformation in the closing portion of the tube, and Thus, the tube can be used stably for a long period of time.

It is another object of the present invention to provide a movable member which can be opened and closed so as to be able to approach or separate from a discharge roller which travels together with a positively wound transmission member, and which has an openable door which can be opened and closed. By arranging and fixing the roller receiving cam to the movable member and the open door in two parts,
Opening the movable member so that the tube can be easily set in the dispenser device, and opening the opening door to easily open the upper blocking portion of the tube. In order to prevent the deformation of the tube by closing only the lowermost closed portion, it is possible to accurately measure and discharge a predetermined amount of liquid fluid over a long period of time.

Still another object is to provide an opening door to which the upper member of the roller receiving cam is fixed and which is provided on the movable member so as to be openable and closable, and an engaging member which comes out of the opening door and engages with the movable member. By disposing the dispenser device, the opening door is closed when the dispenser device is operated, and the roller receiving cam divided into upper and lower portions is integrally operated, and when the dispenser device is at rest, the engaging member is pulled in and the engagement with the movable member is released. The upper door of the roller receiving cam is separated from the tube by opening the opening door so that the upper closed portion of the tube can be easily opened, and thereby, the permanent deformation at the closed portion is simplified. Is to be prevented by a simple mechanism.

[0007]

SUMMARY OF THE INVENTION In summary, the present invention (claim 1) comprises a positive winding transmission member which is driven by a driving device and runs in a vertical direction so as to be rotatable at equal intervals. A plurality of discharge rollers that travel together with the transmission member, a convex surface cam having a cam surface for regulating the discharge roller to run along the concave surface, and a cam surface facing the cam surface of the convex surface cam A roller receiving cam that is formed into a concave curved surface and sandwiches a tube having elasticity with the discharge roller, and the tube is opposed by the discharge roller and the roller receiving cam until opposing surfaces of the tube are in close contact with each other. A dispenser device that moves the discharge roller along the convexly curved cam while pressing the discharge roller to measure and discharge the liquid fluid filled in the tube. It is characterized in further comprising a release mechanism for releasing the other of the closed portion as valid only the lowermost closing portion of the closed portion of the plurality of the tubes due to the discharge roller when the stop and the roller receiving cam.

The present invention (Claim 2) provides a plurality of positive winding transmission members which are driven by a driving device and run in a vertical direction so as to be rotatable at equal intervals and run together with the positive winding transmission members. Discharge roller, a convex curved cam having a cam surface for regulating the discharge roller to run along the concave curved surface, formed in a convex curved surface, and a concave curved surface opposed to the cam surface of the convex curved cam. A roller receiving cam formed between the discharge roller and the discharge roller, and pressing the tube with the discharge roller and the roller receiving cam while pressing the tube until the opposing surfaces of the tube are in close contact with each other. In a dispenser device that moves the discharge roller along a curved cam and discharges while measuring the liquid fluid filled in the tube, the dispenser device approaches or separates from the discharge roller. A movable member having the roller receiving cam disposed at a position facing the discharge roller when closed and a member above the roller receiving cam fixed to the movable member so as to be freely opened and closed; An opening door is provided, and when the discharge roller stops running, the opening door is opened to open the closed portion of the tube by the upper member of the roller receiving cam and the discharge roller, and only the lowermost closed portion is made effective. It is characterized in that the liquid fluid filled in the tube is prevented from flowing down.

According to a third aspect of the present invention, there is provided a plurality of positive winding transmission members which are driven by a driving device and run in a vertical direction, are rotatably mounted at equal intervals, and run together with the positive winding transmission member. Discharge roller, a convex curved cam having a cam surface for regulating the discharge roller to run along the concave curved surface, formed in a convex curved surface, and a concave curved surface opposed to the cam surface of the convex curved cam. A roller receiving cam formed between the discharge roller and the discharge roller, and pressing the tube with the discharge roller and the roller receiving cam while pressing the tube until the opposing surfaces of the tube are in close contact with each other. In the dispenser device, in which the discharge roller runs along a curved cam and discharges while weighing the liquid fluid filled in the tube, the dispenser device includes a support shaft disposed at one end as a center. A movable member having a lower member of the roller receiving cam disposed at a position facing the discharge roller when closed and configured to be openable and closable so as to approach or separate from the output roller, and an upper member of the roller receiving cam is fixed. An opening door which is provided on the movable member so as to be openable and closable; And a lower member of the roller receiving cam by opening the open door when the travel of the discharge roller is stopped to open a closed portion of the tube by the upper member of the roller receiving cam and the discharge roller. Only the lowermost blockage by the discharge roller is effective, and the lowermost blockage prevents the liquid fluid filled in the tube from flowing down.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings. 1 to 6, a dispenser device 10 according to the present invention includes an opening mechanism 11 and a movable member 1.
2, an open door 13, and an engagement member 14.

First, the basic structure of the dispenser device 10 will be described. In FIG. 6, the discharge roller 15 presses an elastic tube 16 (for example, a tube made of silicon rubber) to press the liquid flow filled in the tube 16. The upper and lower ends of a pair of convexly curved cams 20 having the same shape are connected by shafts 21 and 22 and are fixed to a base (not shown).

A pair of sprockets 24 are fixed to the shafts 21 and 22 adjacent to the convex curved cam 20, respectively.
A worm wheel (not shown) fixed to one end of the
The motor 25 engages with a worm (not shown) attached to a motor 25 which is an example of a driving device fixed to the casing 23.

A toothed belt 26, which is an example of a positively wound transmission member, is wound between the pair of sprockets 24, and the number of teeth of the toothed belt 26 is set to, for example, 32. Four pairs of fixing brackets 29 are fixed to each other to face each other, and the discharge roller 15 is rotatably fitted to a roller support shaft 30 fixed to each fixing bracket 29.

By rotating the shaft 21 by the motor 25, the toothed belt 26 is caused to travel through the sprocket 24. This is achieved by using a belt that does not slip with the pulleys. This is because the liquid 15 can be measured accurately and the liquid fluid 19 can be accurately measured, and the discharge roller 15 can travel along a curved surface having a large radius of curvature due to the flexibility of the toothed belt 26. .

The convex curved cam 20 is for regulating the discharge roller 15 so as to travel along a predetermined locus, and the side facing the roller receiving cam 31 is a convex curved cam surface having a large radius of curvature. The surface, especially the cam surface, is made of a tube 16
The tube 16 is finished so as not to damage the tube 16 when it is crushed, and is finished very smoothly.

The roller receiving cam 31 is for crushing the tube 16 in cooperation with the discharge roller 15, and
Movable member 12 and open door 13 facing discharge roller 15
Are concave curved cams which are divided into
The lower member 3A of the roller receiving cam is fixed to the upper member 31A of the roller receiving cam, and the lower member 31B of the roller receiving cam is fixed to the movable member 12. Is formed into a similar shape having a radius of curvature larger by a total dimension twice the diameter of the tube 16 and the wall thickness of the tube 16. For example, the radius of curvature is a concave surface of 70 mm. This is so that the opposing wall surfaces 16a of the tube 16 are tightly adhered to each other when the is pressed, so that the liquid fluid 19 can be discharged without leakage.

Two projections 31b are formed on the upper and lower ends, and when the tube 16 is set, the tube 16
Is held between the projections 31b to restrict the position in the left-right direction, so that the tube 16 can be stably held.

The length of the cam surface 31a of the roller receiving cam 31 is set longer than the center distance of the discharge roller 15 disposed on the toothed belt 26. This is to ensure a period in which at least two discharge rollers 15 simultaneously press the tube 16 so that the amount of the liquid fluid 19 filled in the tube 16 between the two discharge rollers 15 can be measured. is there.

The movable member 12 is for opening and closing the tube 16 so that the tube 16 can be easily set in the dispenser device 10. The movable member 12 has a discharge shaft around a support shaft 32 provided at one end of a casing 23. The lower member 31B of the roller receiving cam is fixed inside so as to be openable and closable so as to approach or separate from the roller 15.

A latch claw 33 is provided at the other end of the movable member 12, and when the movable member 12 is closed, the latch claw 33 is engaged with the engaging portion 23 formed on the casing 23.
a, the movable member 12 and the casing 23 are fixed to prevent the movable member 12 from being opened, and the tube 16 is pressed firmly.

The opening mechanism 11 is for releasing the pressing of the tube 16 when the dispenser device 10 is not used. Specifically, the opening mechanism 11 is configured as an opening door 13 and a device attached thereto, and FIG. 5 to 5, the lower portion of the open door 13 is rotatably supported at the center of the upper portion of the movable member 12 by a pin 34 and an E-ring 37.

The open door 13 is made of a synthetic resin or the like in a substantially box shape, and has square holes 13b formed in both side walls 13a.
In FIG. 4, the open door 13 is slidable in the left-right direction.
The engaging portions 14a of the pair of engaging members 14 mounted on the movable member 12 can protrude and retract, and the engaging portions 14a protruding from the square holes 13b engage with the square holes 12b provided in the ribs 12a of the movable member 12. The upper door 31A and the lower member 31B of the roller receiving cam act as a continuous cam when the open door 13 is closed. It is configured.

A U-shaped groove 14b is formed in the pair of engaging members 14, and an operation dial 35 is formed in the U-shaped groove 14b.
The engaging pin 3 of the opening lever 36 fitted to the opening door 13 so as to be fitted to the shaft 35a and swingable about the shaft 35a.
6a are engaged.

The release lever 36 includes a torsion coil spring 38
4, it is always urged to rotate clockwise (direction of arrow B) in FIG.
The engagement groove 14b is pressed outward to slide the pair of engagement members 14 in a direction to separate them from each other, and the engagement portions 14a are
b to engage with the square hole 12b of the movable member 12.

Then, the operating dial 35 is operated in the direction of arrow A to rotate the release lever 36, and the pair of engaging members 1
4 is pulled into the open door 13 to release the engagement between the engaging portion 14a and the square hole 12b of the movable member 12, and then the open door 13
Is rotated in the direction of arrow C, and the upper member 3 of the roller receiving cam is rotated.
1A is configured to be separated from the tube 16 to release the closing of the tube 16.

The present invention is configured as described above,
Hereinafter, the operation will be described. 6 to 9, the opening door 13 is rotated in the direction of arrow D to
Is engaged with the square hole 12b of the movable member 12, and the opening door 13 is closed.
The lower member 31B and the lower member 31B act as a continuous cam.
Is opened, and the tube 16 filled with the liquid fluid 19 and having a closed end is hung between the upper and lower protrusions 31b of the roller receiving cam 31, and then the movable member 12 is closed to engage with the latch claw 33. The preparation is completed by engaging the portion 23a.

When the motor 25 is rotated, the rotation of the motor is reduced to 1/20 by a worm (not shown) and a worm wheel (not shown), and transmitted to the sprocket 24 via the shaft 21. The sprocket 2
4 is slowly rotated at 300 rpm.

In FIG. 6, a pair of toothed belts 26 engaged with the sprocket 24 by the rotation of the sprocket 24 travel together with the discharge roller 15, and
Travels while pressing and crushing the tube 16 between the roller receiving cam 31 and the cam surface 31a.
The liquid fluid 19 in the inside is discharged, and the toothed belt 26
After traveling / 4 rotation, the detection device 40 detects this, and the rotation of the motor 25 is stopped by a command from a control device (not shown).

As described above, the toothed belt 26 is
The liquid fluid 19 in the tube 16 is sequentially discharged by a predetermined amount every time the 走 行 rotation is performed, and when the toothed belt 26 stops, the tube 16 is nipped by the discharge roller 15 at two places as shown in FIG. Closure portions 41, 42
Is formed to prevent the liquid fluid 19 in the tube 16 from flowing down.

After the work is completed, the long time dispenser device 1
0, the operation dial 35 is operated in the direction of arrow A to rotate the opening lever 36, and the pair of engaging members 14 are pulled into the opening door 13 to engage the engaging portion 14a with the movable member. 12 is disengaged from the square hole 12b to open the door 1.
3 is rotated in the direction of arrow C to separate the upper member 31A of the roller receiving cam from the tube 16 so as to close the upper closing portion 41.
By releasing the closing of the tube, the tube 1 of the closing portion 41 is released.
6 is restored by the elastic force of the tube 16 in the direction of the arrow E, and only the lowermost closing portion 42 is closed to prevent the liquid fluid 19 from flowing down.

As a result, as shown in FIG. 7, the deformation of the tube 16 in the upper closing portion 41 is prevented, and only the lowermost closing portion 42 can be deformed, so that the tube 16 can be used stably for a long period of time. be able to.

[0032]

As described above, according to the present invention, when the dispenser device is at rest, the discharge roller which is rotatably mounted on the positive winding transmission member at equal intervals and travels, and the roller formed in a concave curved surface shape. The lowermost one of the plurality of closed portions of the tube which is held by the receiving cam until the opposing surfaces of the tubes are in close contact with each other is closed, and the other closed portions are opened by operating the opening mechanism. So that permanent deformation at the closed portion of the tube can be prevented,
As a result, there is an effect that the tube can be used stably for a long period of time.

Further, a movable member is provided so as to be openable and closable so as to be able to approach and separate from a discharge roller which travels with the positive winding transmission member, and an open door is provided on the movable member so as to be openable and closable. Since the roller receiving cam is divided into two parts and fixed to the movable member and the open door, respectively, the movable member can be opened and the tube can be easily set in the dispenser device. As a result, when the dispenser device is at rest, only the lowest closed portion of the tube can be closed to prevent deformation of the tube, and a predetermined amount of liquid fluid can be accurately measured and discharged over a long period of time. This has the effect.

Furthermore, the upper member of the roller receiving cam is fixed, and the opening member which is openably and closably provided on the movable member is provided with an engaging member which comes out of the opening door and engages with the movable member. During the operation of the dispenser device, the open door is closed and the roller receiving cam divided into upper and lower portions is operated integrally,
When the dispenser device is at rest, retract the engaging member, release the engagement with the movable member, open the opening door, and separate the upper member of the roller receiving cam from the tube to easily open the upper closed part of the tube. Thus, there is an effect that permanent deformation in the closed portion can be prevented by a simple mechanism.

[Brief description of the drawings]

FIGS. 1 to 9 relate to an embodiment of the present invention, and FIG. 1 is a perspective view of a dispenser device having an opening mechanism.

FIG. 2 is a perspective view of the dispenser device with a movable member opened.

FIG. 3 is a cross-sectional view of an opening mechanism mounted on the opening door.

FIG. 4 is a front view of an opening mechanism mounted on the opening door.

FIG. 5 is an exploded perspective view of an opening mechanism mounted on the opening door.

FIG. 6 is a longitudinal sectional view showing a state where a tube is pressed by a discharge roller and a roller receiving cam to discharge a liquid fluid.

FIG. 7 is a perspective view showing a deformed state of a tube attached to the dispenser device of the present invention and used for a long time.

FIG. 8 is a perspective view showing a state in which an opening door is opened, a roller receiving cam is separated from a tube, and an upper closed portion is released.

FIG. 9 is a longitudinal sectional view showing a state in which an opening door is opened to separate a roller receiving cam from a tube to release an upper blocking portion, and only a lowermost blocking portion is closed to prevent a liquid fluid from flowing down. It is.

10 and 11 relate to a conventional example, and FIG. 10 is a longitudinal sectional view showing a state in which a liquid fluid is discharged from a dispenser device.

FIG. 11 is a perspective view showing a deformed state of a tube used for a long time.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Dispenser apparatus 11 Opening mechanism 12 Movable member 13 Opening door 14 Engaging member 15 Discharge roller 16 Tube 19 Liquid fluid 20 Convex curved cam 25 Motor as an example of a driving device 26 Toothed belt as an example of a positive winding transmission member 31 Roller receiving cam 31a Cam surface 31A Upper member of roller receiving cam 31B Lower member of roller receiving cam 32 Support shaft 41 Closed portion 42 Lowermost closed portion

Claims (3)

[Claims] 1. A plurality of discharge rollers that are rotatably mounted at equal intervals on a positive winding transmission member that is driven by a driving device and travels in a vertical direction, and that runs together with the positive winding transmission member, and the discharge roller. The cam surface, which regulates the cam to run along the concave curved surface, has a convex curved surface, and the ejection roller has a concave curved surface facing the cam surface of the convex curved cam. A roller receiving cam that sandwiches a tube having the discharge roller along the convex curved cam while pressing the tube with the discharge roller and the roller receiving cam until opposing surfaces of the tube are in close contact with each other. In the dispenser device which travels and discharges while weighing the liquid fluid filled in the tube, the discharge roller and the roller receiving cam are provided when the discharge roller stops traveling. A dispenser device comprising an opening mechanism for validating only the lowermost closing portion of the plurality of closing portions of the tubes and opening other closing portions. 2. A plurality of discharge rollers that are rotatably mounted at equal intervals on a positive winding transmission member that is driven by a driving device and travels in a vertical direction, and that runs together with the positive winding transmission member, and the discharge roller. The cam surface, which regulates the cam to run along the concave curved surface, has a convex curved surface, and the ejection roller has a concave curved surface facing the cam surface of the convex curved cam. A roller receiving cam that sandwiches a tube having the discharge roller along the convex curved cam while pressing the tube with the discharge roller and the roller receiving cam until opposing surfaces of the tube are in close contact with each other. In the dispenser device that discharges while measuring the liquid fluid filled in the tube by running the tube, the dispenser device is configured to be openable and closable so as to approach or separate from the discharge roller. A movable member having the roller receiving cam disposed at a position facing the discharge roller, and an open door fixed to an upper member of the roller receiving cam and disposed to be openable and closable on the movable member. When the discharge roller stops running, the open door is opened to open the closed portion of the tube by the upper member of the roller receiving cam and the discharge roller, and only the lowermost closed portion is made effective to fill the tube with the liquid. A dispenser device configured to prevent a fluid from flowing down. 3. A plurality of discharge rollers that are rotatably mounted at equal intervals on a positive winding transmission member that is driven by a driving device and travels in a vertical direction, and that runs with the positive winding transmission member, and the discharge roller. The cam surface, which regulates the cam to run along the concave curved surface, has a convex curved surface, and the ejection roller has a concave curved surface facing the cam surface of the convex curved cam. A roller receiving cam that sandwiches a tube having the discharge roller along the convex curved cam while pressing the tube with the discharge roller and the roller receiving cam until opposing surfaces of the tube are in close contact with each other. A dispenser device that discharges while measuring the liquid fluid filled in the tube by moving the liquid supply device close to or away from the discharge roller about a support shaft disposed at one end. A movable member having a lower member of the roller receiving cam disposed at a position facing the discharge roller when closed, and an upper member of the roller receiving cam fixed to the movable member to open and close the movable member. An open door freely disposed, and an engaging member slidably disposed on the open door so as to protrude and retract from the open door and engage with the movable member when the open door is closed, When the discharge roller stops running, the open door is opened to open the blockage of the tube by the upper member of the roller receiving cam and the discharge roller, and the lowermost member by the lower member of the roller receiving cam and the discharge roller. A dispenser device, wherein only the closing portion is made effective and the lowermost closing portion is configured to prevent the liquid fluid filled in the tube from flowing down.