CN205034784U - Defeated powder device of frequency conversion single -candidate - Google Patents

Abstract

The utility model discloses a frequency conversion equal-amount powder delivery device, which has a feeding room, and the feeding room is divided into an upper material storage tank and a lower transfer material tank through a partition, and a feeding opening is opened on the partition; the upper part of the partition is movable. There is a push plate, and the bottom of the lower transfer chute is provided with a discharge port that is staggered with the discharge port, and the bottom of the lower transfer trough is equipped with a movable plate that matches the bottom of the trough. The lower discharge hole group is arranged around the annular area corresponding to the discharge port; a coaming plate is arranged at the corresponding discharge port above the movable plate, and a coaming plate corresponding to the lower discharge hole group is opened on the bottom surface of the coaming plate. The corresponding upper discharge hole group. By crushing lumps while conveying, continuous powder frequency conversion equal-amount conveying can be carried out. When used to convey cleaning materials to the injection mechanism, it can well prevent the blockage of the nozzle from being blocked.

Description

A frequency conversion equal amount powder feeding device

technical field

The utility model relates to a powder conveying device, in particular to a frequency conversion equal-amount powder conveying device.

Background technique

It has become an important means of surface treatment to use spraying of environmentally friendly cleaning agent powder to peel off the pollutants adhered to the surface of objects. However, when dealing with the surface of hard products, cleaning materials such as fine sand, iron balls, and resin particles are likely to cause damage to the surface. However, when dry ice is simply used as a cleaning agent, it is difficult to clean the more stubborn pollutants on the surface of non-metallic products. It has been found through research that using environmentally friendly detergent powder as an additive to dry ice after jet grinding has a good cleaning effect on the surface of the object and the surface is hardly damaged. Environmentally friendly detergent powder is soluble in water, easy to dispose of after cleaning, and has no harm to the environment. In addition, the environmentally friendly detergent powder is low in price and high in safety. Under these advantages, environmentally friendly detergent powders are receiving more and more attention as grinding additives.

Environmentally friendly detergent powder is easy to absorb moisture in the air and agglomerate. Even if the original invented powder delivery device can continuously deliver environmentally friendly detergent powder to the nozzle, the nozzle device is easily blocked by lumpy environmentally friendly detergent powder, resulting in system failure. . In addition, when spraying eco-friendly detergent powder from a nozzle, back pressure will be generated in the nozzle piping, and the powder that should be supplied to the mixer may flow backward due to the back pressure, resulting in failure to transport.

Utility model content

The purpose of the utility model is to provide a frequency-conversion and equal-amount powder delivery device, which can deliver the wet environmental protection cleaning agent powder in frequency-conversion and equal-amount to realize continuous and uniform spraying and avoid blockage and other failures.

In order to achieve the above object, the solution of the present utility model is:

A frequency conversion equal-amount powder delivery device, with a feeding chamber, the feeding chamber is divided into an upper storage tank and a lower transfer tank through a partition, and a feeding port is provided on the partition; a push plate is movable above the partition , the bottom of the lower transfer chute is provided with a discharge port that is staggered with the discharge port, and the bottom of the lower transfer chute is equipped with a movable plate that matches the bottom of the groove. The lower discharge hole group is arranged around the annular area corresponding to the discharge port; a coaming plate is provided at the corresponding discharge port above the movable plate.

The bottom surface of the coaming is provided with an upper discharge hole group corresponding to the lower discharge hole group, and the tank wall of the lower transfer trough is provided with an air inlet through the coaming for dry compressed air.

Sensors are arranged below the corresponding feed openings on the wall of the down transfer chute.

The push plate and the movable plate are jointly assembled on the main shaft, and the main shaft is connected with a servo motor for driving its rotation.

The powder conveying device has a bottom frame, the feeding chamber is erected on the bottom frame, and the servo motor is installed in the bottom frame.

The feeding chamber is erected on the base frame through a supporting tube, the output shaft of the servo motor extends upwards into the supporting tube, the lower end of the main shaft extends out of the bottom of the groove into the supporting tube, the lower end of the main shaft and the servo motor connected to the output shaft.

The lower transfer trough is separated with a closed groove for the main shaft to extend through. The closed groove is located inside the lower discharge hole group, and its upper and lower ends are respectively connected to the partition plate and the bottom of the groove.

After adopting the above scheme, the new frequency conversion equal-amount powder delivery device crushes the powder in the upper storage tank through the push plate, and the upper storage tank is crushed by the push plate while being transported to the lower transfer tank, and the powder is filled. The lower discharge hole group of the movable plate on the bottom of the down transfer chute pushes the equal amount of powder to the discharge port through the coaming plate, and further controls the speed of the equal amount of conveying by controlling the rotation speed of the movable plate, so as to realize continuous Frequency conversion and equal amount of powder input. After the powder absorbs moisture, it will contain a part of lumps. By crushing the lumps while conveying, continuous powder conveying can be carried out. When it is used to convey cleaning materials to the spraying mechanism, it can well prevent the lumps from clogging the nozzle. question.

Description of drawings

Fig. 1 is the front view of the novel frequency conversion equal-amount powder feeding device;

Fig. 2 is a schematic sectional view of A-A direction in Fig. 1;

Fig. 3 is a schematic sectional view of B-B direction in Fig. 1;

Fig. 4 is an enlarged view of part I in Fig. 1 .

Label description

Supply chamber 1 partition 10

Feeding port 101 upper storage tank 11

Down transfer chute 12 outlet 121

Closed groove 122 push plate 2

Discharge hole group 31 under movable plate 3

Discharge hole group 41 on the coaming plate 4

Main shaft 51 Servo motor 52

Support cylinder part 6 mixing mechanism 72

Powder delivery pipe 71 air inlet 73

Dry ice delivery tube 74 sensor 8

chassis9.

detailed description

The present case will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

This case involves a frequency conversion equal-amount powder delivery device, as shown in Figure 1-4, it has a feeding chamber 1, and a partition 10 is horizontally arranged in the feeding chamber 1, where the feeding chamber 1 is divided into an upper storage tank 11 And down transfer chute 12.

A discharge port 101 is provided on the partition 10 , and the discharge port 101 is provided near the edge of the partition 10 so as to be staggered with the discharge port 121 below. A push plate 2 is movable above the partition 10, and the push plate 2 is preferably designed close to the upper surface of the partition 10, so as to facilitate crushing.

The bottom of the lower transfer trough 12 is provided with a discharge port 121 that is staggered with the discharge port 101, and a movable plate 3 is movable on the bottom of the lower transfer chute 12, and the movable plate 3 is compatible with the bottom of the trough. And it can perform rotating action (there is a slight gap between the two). The lower discharge hole group 31 is arranged around the annular area corresponding to the discharge port 121 on the movable plate 3, and a plurality of discharge holes of the same volume are arranged around at certain intervals. A coaming plate 4 is provided at the corresponding discharge port 121 above the movable plate 3, and the coaming plate 4 is preferably a fan-shaped structure covering a predetermined angle range, and its height is higher than the lower end of the feeding port 101, and its bottom surface is in contact with the movable plate. The surfaces of 3 are movably attached to each other, and the upper discharge hole group 41 corresponding to the lower discharge hole group 31 is opened on the bottom surface (see Fig. 3-4). A sensor 8 is arranged below the corresponding feed opening 101 on the wall of the lower transfer chute 12, which is a sensor 8 for detecting the accumulation of powder attached to the inner wall of the lower transfer chute 12.

The new device uses the push plate 2 to effectively pulverize the powder in the upper storage tank 11. After the powder absorbs moisture, it will contain some lumps. The upper storage tank 11 crushes the powder through the push plate 2 while downward The transfer chute 12 is conveyed, and the powder fills the lower discharge hole group 31 of the movable plate 3 on the bottom of the lower transfer chute 12, and according to the ratio of the rotation number of the movable plate 3, the set equivalent amount is passed through the coaming 4 The powder is pushed to the discharge port 121, so that continuous equal-amount powder delivery can be carried out; and when it is used to transport cleaning materials to the subsequent injection mechanism, it can well prevent the problem of blockage of the nozzle. By adjusting the rotation speed of the movable plate 3, the rate of equal-amount powder delivery can be simply controlled, that is, the frequency-variable equal-amount powder delivery operation can be realized.

Preferably, the material outlet 121 is connected to the mixing mechanism 72 via the powder delivery pipe 71 , and the powder delivery pipe 71 is provided with a dry ice delivery pipe 74 . The tank wall of the lower transfer tank 12 is provided with an air inlet 73 penetrating into the coaming 4 , and the air inlet 73 is used to deliver dry compressed air into the coaming 4 . The dry air flows along the coaming plate 4, and the coaming plate 4 is used to guide the air into the lower transfer tank 12 without blowing the powder in the lower transfer tank 12, so that the pressure in the mixer 72 and the lower transfer tank 12 are the same , so the powder will not flow back due to the back pressure of the nozzle. In addition, due to the force of the compressed air inside the shroud 4 , the powder filled in the lower discharge hole group 31 is blown out, and is transported down to the discharge port 121 .

Preferably, the push plate 2 and the movable plate 3 are jointly assembled on the main shaft 51, and the main shaft 51 is connected with a servo motor 52 to drive it to rotate. The main shaft 51 is driven to rotate by the servo motor 52, thereby driving the push plate 2 and the movable plate 3 to rotate synchronously. The synchronous design is conducive to the synchronous operation of the two, ensuring the powder feeding operation, and can also save driving power and reduce cost advantages. The faster the rotation speed of the main shaft 51, the faster the rotation speed of the push plate 2 and the movable plate 3, the greater the powder delivery volume per unit time, otherwise the slower the rotation speed, the smaller the delivery volume; it can be achieved by changing the rotation speed. Realize the change of conveying volume.

Specifically, the powder conveying device has a base frame 9 , and the servo motor 52 is installed in the base frame 9 . The feeding chamber 1 is erected on the underframe 9, preferably through a support cylinder 6, the output shaft of the servo motor 52 extends upwards into the support cylinder 6, and the lower end of the main shaft 51 protrudes From the bottom of the groove to the support cylinder 6 , the lower end of the main shaft 51 is connected to the output shaft of the servo motor 52 , and the two can preferably be transitionally connected through a coupling. The design of the supporting cylinder 6 is conducive to forming a closed and pollution-free structure, ensuring the stability and reliability of the device, and is also conducive to disassembly and maintenance, and also provides convenience for the replacement of various main components. Preferably, a bearing structure for stabilizing the main shaft 51 is also provided in the supporting cylinder 6 to enhance the stability and reliability of the structure.

Further, a closed groove 122 is arranged in the lower transfer chute 12 for the main shaft 51 to extend through. The closed groove 122 is located inside the lower discharge hole group 31, and its upper and lower ends are respectively connected to the partition plate 2 and the bottom of the groove to achieve a closed effect, ensure the cleanliness of the powder and prevent the powder from polluting the device and even affecting the normal operation. operational issues.

The above descriptions are only preferred embodiments of the present invention, and all equal changes and modifications made in accordance with the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims (7)

1. A frequency conversion equal-amount powder delivery device, characterized in that: it has a feeding chamber, the feeding chamber is divided into an upper storage tank and a lower transfer tank through a partition, and a feeding port is provided on the partition; the partition There is a push plate movable on the upper side, and a discharge port that is staggered from the discharge port is provided on the bottom of the lower transfer trough, and a movable plate that is suitable for the bottom of the lower transfer chute is provided on the bottom of the transfer chute. A group of lower discharge holes is arranged around the annular area corresponding to the discharge port on the movable plate; a coaming plate is provided at the corresponding discharge port above the movable plate. 2. A frequency conversion equal-amount powder feeding device as claimed in claim 1, characterized in that: the bottom surface of the coaming plate is provided with an upper discharge hole group corresponding to the lower discharge hole group, and the lower transfer chute The tank wall is provided with an air inlet through the enclosure for dry compressed air. 3. A frequency conversion equal-amount powder delivery device as claimed in claim 1, characterized in that a sensor is provided below the corresponding feeding port on the wall of the down transfer chute. 4. A frequency conversion equal-amount powder delivery device according to claim 1, characterized in that: said push plate and movable plate are jointly assembled on a main shaft, and the main shaft is connected with a servo motor to drive its rotation. 5. A frequency conversion equal-amount powder feeding device according to claim 4, characterized in that: the powder feeding device has a base frame, the feeding chamber is erected on the base frame, and the servo motor is installed in the base frame. 6. A frequency conversion equal-amount powder feeding device as claimed in claim 5, characterized in that: the feeding chamber is erected on the underframe through a supporting cylinder, and the output shaft of the servo motor extends upwards into the supporting cylinder, The lower end of the main shaft protrudes from the bottom of the groove to the support cylinder, and the lower end of the main shaft is connected with the output shaft of the servo motor. 7. A frequency conversion equal-amount powder feeding device as claimed in claim 4, characterized in that: the lower transfer chute is separated with a closed groove for the main shaft to extend through, and the closed groove is located inside the lower discharge hole group position, and its upper and lower ends are connected to the partition and the bottom of the tank respectively.