KR102289492B1 - Power unit for powder transfer - Google Patents

Abstract

The present invention is a power field for conveying powders, which, in more detail, is to provide a power device for conveying powders that prevents damage to the device when an overload is applied to the power unit in an apparatus for conveying powders using a disk carrier. As one thing, the present invention provides a case provided with a supply pipe through which powder is drawn in and out by specific means, a disk carrier that transports powder while moving in an annular shape along the supply pipe, and a drive shaft installed in a motor to provide a disk carrier A driving part composed of a driving wheel that transmits power to move the drive wheel and a driven wheel installed on a sliding part that slides correspondingly according to the tension acting on the disk carrier, and overload prevention that stops the driving of the driving part when an overload occurs in the driving part or the disk carrier It is characterized in that a means is included, and by this invention, damage to major components such as the driving wheel or driven wheel or disk carrier is prevented, unnecessary repair costs can be greatly reduced, and the lifespan of the power unit can be prolonged, It is an invention that can be expected to have many effects such as easy maintenance.

Description

Power unit for powder transfer

The present invention is a power device for powder transport, and more specifically, to provide a power device for powder transport that prevents damage to the device when an overload is applied to the power unit in a device for transporting powder using a disk carrier did it

The technology for transferring powders has been developed in various ways, such as a rotary screw transfer method and a vacuum transfer method. Using the disk plate forming the case, the supply pipe is extruded from both ends of the case, and passed through the rope with a number of disk plates coupled thereto. In a general structure that enables transport, an adjustment lever is installed by a pin shaft on one side at the center of the adjustment roller, a connection through a side roller is installed on a spring in the center of the adjustment lever, and a sensor is installed at the rear end of the spring. A technology has been disclosed that is configured to operate the sensor by connecting it and a nut to adjust the position of the sensor by coupling an adjustment bolt to the rear end of the detection sphere.

The powder transfer technology as described above is a method that has the advantages of high transfer efficiency and sanitary management by preventing the powder from remaining in the tube by the disk plate scraping action as well.

However, in the above configuration, there is only a configuration for manually adjusting the tension (tension) applied by the adjustment roller by the spring and the sensor, and in actual use, the amount of powder transferred, viscosity, and other foreign substances applied to the disk plate. When the tension is suddenly changed, the roller or the motor is overloaded and the roller or the motor or the main body of the power unit is damaged, such as damage, thereby increasing the maintenance cost of the device.

Therefore, when the disk plate is overloaded, there is a need for a technology to prevent damage to the device and keep it stable.

KR 20-0117490 Y1 (1996.04.15.)

In the present invention, a new technology was invented to solve the problems of the prior art, and the present invention is an apparatus for transferring powder using an endless disk carrier forming a loop, a power device for transferring powder To improve, it is intended to provide a power unit for powder transfer having a stabilizer to prevent damage to the power unit or components of the power unit even when the power unit is overloaded.

Although not described separately, other objects within the scope that can be inferred in consideration of the specific contents and claims for carrying out the following invention are also included in the overall task of the present invention.

As a specific means for solving the problems of the present invention, in the present invention, the power device for powder transfer is formed in a case provided with a supply pipe through which powder is drawn in and out, and a supply pipe with which the powder is drawn out is formed at a lower height than that of the incoming and outgoing feed pipe. A hopper formed in the case so that the powder can be easily drawn out through the supply pipe, and the wire connected to the loop and the disk formed repeatedly at equal intervals on the wire are formed, and a disk carrier that transports the powder while moving in an annular fashion along the supply pipe; A driving part having a drive shaft installed in the motor to transmit power to move the disk carrier and a driven wheel installed on a sliding part corresponding to the slide according to the tension applied to the disk carrier, and at equal intervals in the circumferential direction of the drive wheel It is characterized in that it includes a blocking protrusion that is formed repeatedly and moves the disk carrier according to the rotation of the driving wheel, and an overload prevention means that stops the driving of the driving unit when an overload occurs in the driving unit or the disc carrier.

In addition, the overload prevention means is connected to the slide part and the spring on the opposite side of the driving wheel, and when an overload occurs on the driving part or the disk carrier, it detects the tensile force generated from the spring tensioned by the slide part sliding toward the driving wheel. When the tensile force is high, a load measuring device that stops the driving unit may be further included.

Alternatively, the overload prevention means is formed on the slide part so as to operate the stop switch by pressing the stop switch by a stop switch that slides together with the slide part, and the slide part that slides toward the driving wheel when an overload occurs in the drive unit or the disk carrier. A fixing pin fixed to the case, and a long hole formed in the slide portion through which the fixing pin passes to limit the positions of the fixing pin and the stop switch may be further included.

In addition, the overload prevention means is interposed between the drive shaft and the drive wheel to transmit the rotational force of the drive shaft to the drive wheel, and when an overload occurs in the drive wheel or disk carrier, it is damaged instead and a safety fragment that causes the drive shaft to run idly is further included. do.

According to the specific means for solving the above-mentioned problems, by quickly detecting an abnormal overload applied to the drive unit or the disk carrier by the overload prevention means, the driving wheel or the driven wheel or the disk carrier by the power continuously transmitted from the motor. It is an invention with many expected effects, such as preventing damage to components, greatly reducing unnecessary repair costs, prolonging the life of the power unit, and making maintenance easier.

1 is a front cross-sectional view showing an example of the present invention;
2 is an exemplary view showing the action of the load measuring device in the present invention;
3 is an exemplary view showing the operation of the stop switch in the present invention;
Figure 4 is an exemplary view showing the action of the safety fragment in the present invention

The present invention is intended to provide a power device for powder transfer, which will be described in more detail with the drawings below, and the accompanying drawings are only examples for easily explaining the content and scope of the technical idea of the present invention, and the present invention is limited thereto The terms used are also only for describing the embodiment in detail, and should not be construed as being limited to the term.

The configuration of the power device 1 for powder transfer of the present invention is as shown in FIG. 1 , a case 2 provided with a supply pipe 21 through which powder is drawn in and out, and a supply pipe 21 through which the powder is drawn out. The supply pipe 21 is formed at a low height, and the hopper 22 formed in the case 2 so that the powder inside the case 2 can be easily withdrawn through the supply pipe 21, the wire 41 and the wire connected to the loop A disk 42 formed repeatedly at equal intervals is formed on the 41, and a disk carrier 4 for transferring the powder while moving in an annular shape along the supply pipe 21, and a drive shaft 32 on the motor 31 ) is axially installed to the driven wheel 33 that transmits power to move the disc carrier 4 and the driven wheel 35 axially installed on the slide part 36 that slides correspondingly according to the tension acting on the disc carrier 4 The configured driving unit 3, and the stopping protrusion 34 that are repeatedly formed at equal intervals in the circumferential direction of the driving wheel 33 to move the disk carrier 4 according to the rotation of the driving wheel 33, and the driving unit 3 Alternatively, it is characterized in that an overload prevention means (5) for stopping the driving of the drive unit (3) when an overload occurs in the disk carrier (4) is included.

In addition, the overload prevention means 5 is connected to the slide part 36 and the spring 37 on the opposite side of the driving wheel 33, so that when an overload occurs in the driving part 3 or the disk carrier 4, the driving wheel 33 ), a load measuring device 51 for stopping the driving unit 3 when the tensile force is higher than the set value by detecting the tensile force generated by the spring 37 tensioned by the slide portion 36 sliding toward the side may be further included.

Alternatively, the overload prevention means 5 includes a stop switch 52 formed on the slide part 36 and sliding together with the slide part 36, and a driving wheel ( 33) A fixing pin 52-1 fixed to the case 2 so as to operate the stop switch 52 by pressing the stop switch 52 by the slide part 36 sliding toward the side, and the fixing pin 52 -1) and a long hole 52-2 formed in the slide part 36 through which the fixing pin 52-1 passes to limit the positions of the stop switch 52 may be further included.

In addition, the overload prevention means 5 is interposed between the drive shaft 32 and the drive wheel 33 to transmit the rotational force of the drive shaft 32 to the drive wheel 33, and the drive wheel 33 or the disk carrier 4 is overloaded. A safety fragment 53 may be further included instead of being damaged when , causing the drive shaft 32 to idle.

A detailed look at the configuration along with the action is as follows.

As shown in FIG. 1 , the power device 1 for powder transport of the present invention is a supply pipe ( 21), it relates to a power unit (1) for transferring the powder to annularly move the disk carrier (4) in order to transport the powder supplied from one side from the other side.

In the power device 1 for powder transfer, a motor 31 is installed in a case 2 , and a drive shaft 32 for transmitting the rotational force of the motor 31 directly to the motor 31 or by a combination of a reduction gear, etc. is a case (2) It is installed inside, and the rotational force of the drive shaft 32 is transmitted to the drive wheel 33 by the safety fracture piece 53 .

The rim of the driving wheel 33 is radially formed with a locking projection 34, and the rotational force of the driving wheel 33 pushes the disk 42 of the disk carrier 4 caught on the locking projection 34, thereby linear motion. will be changed to

Although the positions of the motor 31, the drive shaft 32, and the drive wheel 33 are fixed, the driven wheel 35 for appropriately adjusting the tension of the disk carrier 4 receiving resistance according to the powder transfer is a slide part ( 36), the shaft is installed so that it can rotate freely.

The disk carrier 4 passes through the incoming supply pipe 21 formed on one side of the case 2, is then placed on the driving wheel 33 to receive rotational force, and then is placed on the driven wheel 35 to obtain an appropriate tension. While maintaining, it then moves to the supply pipe 21 that is drawn out formed on the other side of the case 2 , and since the disk carrier 4 is formed in an annular shape, it moves repeatedly in a loop.

The slide part 36 slides through a sliding bar formed in the case 2 , and one side is supported by a spring 37 fixed to the case 2 to adjust the tension, and if necessary, a manual handle formed on the outside of the case 2 . It is also possible to increase or decrease the tension through

It is ideal for the powder conveying device to operate normally, but in practice, when this is not the case, it becomes a big problem for the power unit 1 for conveying the powder.

When the powder is excessively input, the powder is viscous, or other foreign substances such as gloves are input instead of the powder, the disk carrier 4 receives a sudden resistance from the input part of the main body transfer device, and the disk formed as an annular connection body The carrier 4 gives an overload to the driving unit 3 of the power unit 1 for transferring the powder.

Therefore, there is a high risk that any one of the motor 31 that generates power, the drive wheel 33 that transmits power, or the disk carrier 4 that receives power is damaged. Delays, etc., will cause the damage to snowball like a snowball.

Therefore, the overload prevention means (5) to prevent damage to the equipment in practice is very important.

As a first method in the overload prevention means 5, a load measuring device 51 such as a load cell may be used.

As shown in FIG. 2 , the load measuring device 51 is fixedly installed in the case 2 and is connected by a spring 37 to the opposite side of the driving wheel 33 from the slide part 36 .

Then, if the disk carrier 4 is overloaded, the driven wheel 33 is still rotated by the motor 31 so that the driven wheel 35 is seated while the disk carrier 4 is wound by the drive wheel 33 . As the disk carrier 4 is pulled, the driven wheel 35 is brought closer to the driving wheel 33 .

Accordingly, the slide part 36 on which the driven wheel 35 is axially installed also approaches the driving wheel 33, and in the load measuring device 51 connected to the slide part 36 by a spring 37, the spring 37 The applied tensile force is sensed.

The load measuring device 51 sends a signal to the controller (not shown) to stop the motor 31 as an electronic signal to stop the driving unit 3 when the recognition force higher than the predetermined value is measured to prevent damage to important parts do.

In the overload prevention means (5), the stop switch (52) can be used as a second method.

As shown in FIG. 3 , the stop switch 52 is installed on the slide part 36 , and the case 2 so that the fixing pin 52-1 to operate the stop switch 52 is spaced close to the driving wheel 33 side. ) is fixedly installed.

When the disk carrier 4 is overloaded, the driven wheel 35 approaches the driving wheel 33 as in the above case.

Therefore, the slide part 36 on which the driven wheel 35 is axially installed also approaches the driving wheel 33, and the stop switch 52 installed on the slide part 36 also slides, but the sliding degree exceeds the allowable range. If it continues to slide, the stop switch 52 is pressed against the fixed fixing pin 52-1.

Then, the stop switch 52 is operated by the pressing force of the fixing pin 52-1, and the driving unit ( 3) is stopped to prevent damage to important parts.

In order to force the stop switch 52 and the fixing pin 52-1 to come into contact with each other, a long hole 52-2 is formed in the slide part 36, and the fixing pin 52-1 passes through the long hole. It can also be configured.

As a third method in the overload prevention means (5), the safety fragment (53) can be used.

As shown in FIG. 4, when the drive shaft 32 is defective with the drive wheel 33, a flat-shaped safety wave having a concave fracture portion 53-1 with a concave center without using a key, which is a general shaft coupling method, is not used. The fragment 53 may be coupled to the side surfaces of the drive shaft 32 and the drive wheel 33 to transmit power.

In the case of the above configuration, the resistive force received by the disk carrier 4 or the drive wheel 33 in the general situation of powder movement does not put too much strain on the safety fracture piece 53, so that the rotational force of the drive shaft 32 is the safety fragmentation piece ( 53) to the drive wheel 33 as it is.

However, when an overload is applied to the driving wheel 33 or the disk carrier 4, the rotational resistance of the driving wheel 33 is increased, and thus the driving shaft 32 cannot receive all of the rotational force.

The rotational force that is not properly transmitted to the driving wheel 33 is concentrated on the safety fragment 53, and the concave center of the safety fragment 53 is cut, and the driving shaft 32 and the driving wheel 33 are physically separated. .

Accordingly, the drive shaft 32 continues to rotate by the motor 31 , but no rotational force is transmitted to the drive wheel 33 , and the drive wheel 33 is stopped, thereby preventing damage to important parts.

Thereafter, if only the safety fragment 53 is simply replaced after removing the cause of the overload, maintenance is possible with the lowest cost and the minimum time, so that productivity is not impaired.

The three overload detection means may be selectively applied one by one, and if necessary, two or more may be applied at the same time to further increase the stability.

As described above, in the detailed description of the present invention, the most preferred embodiment of the present invention has been described, but various modifications may be made within the scope not departing from the technical scope of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but the protection scope should be recognized from the techniques of the claims to be described later and equivalent technical means from these techniques.

1: Power device for powder transfer
2: Case 21: Supply pipe 22: Hopper
3: drive part 31: motor
32: drive shaft 33: drive wheel 34: locking projection
35: driven wheel 36: slide portion 37: spring
4: disk carrier 41: wire 42: disk
5: overload prevention means 51: load measuring instrument
52: stop switch 52-1: fixing pin 52-2: long hole
53: safety fracture 53-1: concave fracture

Claims (4)

a case 2 provided with a supply pipe 21 through which powder is drawn in and out;
Disk carrier (4) for conveying the powder while circulating in annular (環狀) along the supply pipe (21);
A drive wheel 33 for circulating the disk carrier 4 by having a drive shaft 32 mounted on the motor 31, and a driven wheel mounted on a slide part 36 sliding according to the tension applied to the disk carrier 4 a driving unit 3 composed of (35);
overload prevention means (5) for stopping the driving of the driving unit (3) when an overload occurs in the driving unit (3) or the disk carrier (4);
includes,
The overload prevention means (5) is,
a stop switch 52 formed on the slide part 36 and sliding together with the slide part 36;
When an overload occurs in the drive unit 3 or the disk carrier 4, the case ( 2) fixed pin (52-1) fixed to;
It is interposed between the drive shaft 32 and the drive wheel 33 to transmit the rotational force of the drive shaft 32 to the drive wheel 33, and when an overload occurs in the drive wheel 33 or the disk carrier 4, the concave rupture part 53 -1) is broken (破斷) so that the drive shaft 32 is idling the safety fracture piece 53;
Power unit (1) for powder transfer, characterized in that it is included.
The method of claim 1 ;
The overload prevention means (5) is
A spring 37 connected to the slide part 36 and a spring 37 and tensioned by the slide part 36 sliding toward the driving wheel 33 when an overload occurs on the driving part 3 or the disk carrier 4 a load measuring device 51 which detects the tensile force generated in and stops the driving unit 3 when the tensile force is higher than a set value;
Power device for powder transfer (1), characterized in that it consists of.
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