Device for dispensing material

 

(57) Abstract:

The device (10) for dispensing finely dispersed material (T) can be used for charging of the toner in the photocopier devices and laser printers. The device comprises a hopper (23) for storing fine material (T), an outlet (12), having a distributing nozzle (13), and means of submission (25) designed to transfer the fine material (T) from the hopper to the discharge port (12). The supply of fine material regulate the means of measuring the fine material (T) to regulate the amount of the fine material (T), transmitted by means of submission (25) into the outlet pipe (12). Material (T) is transferred into a refillable container (S), setting it at the dispensing nozzle, so that the tool feed (25) transfers a predetermined amount of fine material (T) from the hopper (23) into the outlet pipe (12). Displaced from the container (C) airflow due to fine material, comes in precipitating pipe (15), where the material contained in the displaced air, settles and falls under gravity into the container (S). This avoids polluting the atmosphere fine with the General invention relates to a device for dispensing and, more specifically, to a device for dispensing fine material, such as toner for Photocopying devices and laser printers.

The term "toner" is used in the field of reproduction to denote electrostatic mixture acting as "ink" when forming the image on a flat paper copies.

It is known that fine material is difficult to transport when automated processes. This is particularly true in cases when it is necessary to move the material from one container to another. When moving material from one container to another displaced air carries with it a certain amount of fine material. Such an arrangement is often unsatisfactory, because it creates clogged by particles in the atmosphere, which can be dangerous for breathing. In addition, the accumulated material can have a negative impact on the equipment, and cleaning can be difficult.

In the famous semi-automated process such, an example of which is implemented in the device Per-Phil (firm "Prefil industries, Inc. (Per-Fil Inductries, Inc.), Riverside, 08075 the state of new Jersey, USA), the fine material is metered from Bouroullec devices, etc. and is used for refilling cartridges that are inserted into specific equipment. Device for dispensing want it otmeryala a predetermined amount of toner in a range of sizes cartridge toner, and it comprises a hopper, a vertically positioned screw and holding the nozzle. This process of filling the empty cartridge hold under the dispense nozzle and rotate the screw to the specified number of revolutions to supply the required quantity of material in the nozzle. It also displaced the air carries with it a certain amount of toner. In addition, because the flow of fine material, similar to the fluid flow, the amount of toner supplied from the screw, may undergo undesirable changes.

The present invention is to attempt to overcome the above disadvantages and to develop improved device for dispensing fine material, such as toner.

Therefore, the present invention relates to a device for dispensing fine material containing:

a hopper for storage of the dosed material;

the discharge port with transfer of nasasa material from the hopper to the discharge port;

A measure of fine material designed for controlling the amount of material transmitted by means of supply into the exhaust pipe, and

deflecting means, actuated to force the introduction of a container filled with a material in sealed contact with the dispense nozzle

resulting in operation, the sealed container at the dispensing nozzle, means for supplying transfers a predetermined amount of material from the hopper into the exhaust pipe, and displaced air, clogged material from the container comes in precipitating the pipe, where the material contained in the displaced air, settles and falls under gravity into the container.

Preferably, the means for supplying includes, essentially, a horizontally positioned screw.

Mainly, the auger is positioned so that the fine material, portable, offset, remaining in the auger or returning to the bunker, resulting in the flow of material stops when the auger stops.

Typically, the measurement tool includes switching means on the basis of the timer for regulating the number of revolutions šnē the tx2">

In a preferred specific embodiment, the outlet and the inlet of the deposition form part of a vertically positioned pipes, flow in which the auger through the connection, remote from the upper end of the pipe. The material falls through the connection in the dispenser nozzle at the lower end of the pipe, and the displaced air escapes up the outlet in the nozzle deposition, where material, portable displaced air, gets the opportunity deposition and fall under gravity into the container, located directly under the dispense nozzle.

Mainly, the sealed container at the dispensing nozzle plate having a deflecting means.

Typically, a distributing nozzle has a tapered profile to facilitate hermetic contact with the holes for filling containers in a range of sizes.

Preferably, there are means to move the material in the bunker.

Mainly, the mixing tool is driven by means of submission.

The device preferably contains one bunker, a few money supply and the corresponding exhaust pipes.


in Fig. 1 presents a vertical front view of the device for dispensing;

in Fig. 2 shows a vertical side view of the device for dispensing; and

in Fig. 3 shows a vertical section of the device along line III-III shown in Fig. 1.

Referring to the drawings and first to Fig. 1 and 2, note that the device 10 for dispensing has two outputs, each of which contains the exhaust pipe 12, having a distributing nozzle 13 on its end. Above the outlet 12 is precipitating lad of 15, which has an open end to allow air escape.

The device 10 also includes a housing 20, which comprises a hopper 23 and the screw 25 for each transfer channel, as shown in detail in Fig. 3. When operating a container such as a cartridge C to the toner is liable to the charge of toner T, is placed on the retaining plate 30.

The plate has a foam base 32 to protect the cartridge C from accidental damage. The cartridge C is the hole, which enter into contact with the transfer nozzle 13 having a conical profile jgogo exhaust channel includes a control unit 35. Each remote control 35 has a light-emitting diode (LED) or liquid crystal display (LCD) indicator 36, pre-programmable function keys keys 37 and 38 enter numbers. When you need to refill the cartridge C, the user selects the function c panel 35 and presses one of the appropriate keys 37, 38. The motor 40 rotates the screw 25 with a constant speed over a period of time defined by the selected input signal. When the screw 25 is rotated, the toner T from the hopper 23 is fed by the screw 25 and then falls under gravity into the exhaust pipe 12. The toner T flows through the nozzle 13 into the cartridge C. When the cartridge C is filled with the toner T, displaced air is forced back through the nozzle 13. Displaced air, carrying with them particles T' toner passes up the exhaust pipe 12 in the nozzle deposition 15. When displaced, the air becomes less turbulent, particle T' toner begin to precipitate and fall back into the exhaust pipe 12. Essentially pure displaced air escapes through the open upper end of the nozzle deposition 15.

Say no to the spring plate 30 and the conical profile of the dispensing nozzle 13 allow you to refill cartridges in a range of sizes. Cartridges the battle of the screw 25 for a period of time, proportion corresponding to the desired weight or volume of the desired toner.

The accuracy of the quantities of the metered toner depends on the constant speed of rotation of the screw 25 within precisely controlled periods of time, and also depends on the orientation of the screw 25. Since the auger is positioned horizontally, as soon as the rotation of the auger stops, stops, and the supply of toner in the dispenser nozzle. If, as in the known device, the dispensing end of the auger is substantially lower than the outlet end of the hopper, feed screw, flow characteristics of the toner negatively affect the accuracy because at the termination of rotation of the auger within the toner continues randomly within a short period of time. In an alternative specific embodiment of the present invention the dispensing end of the auger is much higher than the input end of the bunkers. This particular implementation (not shown) allows to obtain a large capacity hopper and maintains accurate filing dozed.

Although the present invention is dedicated to a device for dispensing toner used in printers, such as laser and photocopy devices, should be To avoid "congestion" of the toner T in the hopper 23 is provided by an optional stirrer (not shown). The stirrer is driven directly from the auger 25 or motor 40.

Concrete option implementation of the present invention can be adapted for use in a modular form, so it can collect blocks of devices for dispensing.

Of course, it should be clear that the invention is not limited to the specific details described herein, which are given only as examples, and various modifications and changes within the scope of the claims defined the proposed claims.

1. The device (10) for dispensing finely dispersed material (T), containing hopper (23) for storing fine material (T), an outlet (12), having a distributing nozzle (13), essentially horizontal tool feed (25) designed to transfer the fine material (T) from the hopper to the discharge port (12), means (35) measurements of fine material (T), for regulating the amount of the fine material (T), transmitted by means of submission (25) in the outlet (12), precipitating pipe (15) and tool offset driven to forcibly bring the container (S) and operation of the container is pressed to dispense the nozzle (13), the means for supplying transfers a predetermined amount of fine material (T) from the hopper (23) in the outlet (12), and being forced out of the container, the air clogged with fine material, comes in precipitating pipe (15), where the material contained in the displaced air, settles and falls under gravity into the container.

2. Device for dispensing under item 1, characterized in that it means submission (25) made in the form located essentially horizontally auger.

3. Device for dispensing under item 2, characterized in that it auger mounted such that migrated through it fine material (T) tends to remain in the auger or to return to the bunker (23), resulting in a period of fine material (T) stops when the auger stops.

4. Device for dispensing under item 2 or 3, characterized in that the means (35) measurements of fine material contains switching means on the basis of the timer for regulating the number of revolutions of the auger with the accurate and reproducible measurement supplied fine material.

5. Device for dispensing according to any one of paragraphs.2 to 4, distinguished by a pipe, the output end of the auger is connected via a connection, remote from the upper end of the pipe.

6. Device for dispensing according to any one of the preceding paragraphs, characterized in that it is equipped with a plate (30) having a tool offsets are designed to ensure the sealing of the container (S) relative to the dispensing nozzle (13).

7. Device for dispensing according to any one of the preceding paragraphs, wherein the dispense nozzle (13) has a tapered profile to facilitate a sealed contact with the filling openings of the containers in a range of sizes.

8. Device for dispensing according to any one of the preceding paragraphs, characterized in that it includes a means of mixing the fine material (T) bin (23).

9. Device for dispensing under item 8, characterized in that the mixing tool mounted for actuation from the money supply (25).

10. Device for dispensing according to any one of the preceding paragraphs, characterized in that it contains one tank (23) and multiple means of submission (25), each associated with a respective outlet nozzle (12).

 

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