CN204278461U - A kind of vacuum feeder for plastic extruder - Google Patents

Abstract

The utility model discloses a vacuum feeding machine for plastic extruders, which includes a fan, a hopper, an intermediate storage box, a raw material storage box and a controller. The air duct is connected with the tuyere of the intermediate storage box, the inlet of the intermediate storage box is connected with the raw material storage box through the suction pipe, the outlet of the intermediate storage box is aligned with the inlet of the hopper, and the outlet of the intermediate storage box is aligned with the inlet of the hopper. A discharge valve is provided at the discharge port, a material level sensor is provided in the middle material storage box, and the controller is respectively connected with the material level sensor, the discharge valve and the fan. The utility model is provided with a filter, which can increase the service life of the blower fan, and has a simple structure and convenient feeding, which is beneficial to popularization.

Description

A vacuum feeder for plastic extruders

technical field

The utility model relates to a vacuum feeder for plastic extruders.

Background technique

The vacuum feeder uses compressed air to generate a high vacuum through the vacuum generator to convey the material. It does not need a mechanical vacuum pump. It has the advantages of simple structure, small size, maintenance-free, low noise, convenient control, elimination of material static electricity and compliance with GMP regulations. and other advantages; the high vacuum generated by the vacuum generator prevents the stratification of the conveyed material and ensures the uniformity of the composition of the mixed material. It is a plastic extruder, capsule filling machine, dry granulator, packaging machine, crushing machine Machine, vibrating screen and other mechanical automatic feeding equipment of choice.

When the vacuum feeder of the existing plastic extruder is evacuated, the evacuated pipeline will easily absorb the material into the fan, causing the blades of the fan to be knocked by the material, which will damage the fan, especially the granular materials. Plastic extruders The selected materials are generally granular or massive, which has great destructive power to the fan blades, which is very easy to cause damage to the fan, resulting in high maintenance costs for the fan.

Contents of the invention

The purpose of this utility model is to provide a vacuum feeder for plastic extruders with simple structure and convenient feeding for the defects of the prior art.

The vacuum feeding machine used for plastic extruders of the utility model includes a fan, a hopper, an intermediate storage box, a raw material storage box and a controller. A filter is arranged at the suction port of the fan, and the filter is connected with the suction pipe through the suction pipe. The outlet of the intermediate storage box is connected, the inlet of the intermediate storage box is connected with the raw material storage box through the suction pipe, the outlet of the intermediate storage box is aligned with the inlet of the hopper, and the outlet of the intermediate storage box There is a discharge valve at the center, a material level sensor is installed in the middle storage box, and the controller is connected with the material level sensor, discharge valve and fan respectively.

The controller is equipped with a discharge valve control switch, a fan control switch and a time setting button. When the material level sensor fails, the fan can be controlled by the time setter. The feeding time can also be controlled by the discharge valve. The control switch and fan control switch manually control the feeding process.

One end of the suction pipe extends into the bottom of the raw material storage tank to prevent the intermediate storage tank 3 from inhaling air when sucking material, and to improve feeding efficiency.

The fan can be mounted on a trolley for easy movement.

The controller can adopt a single-chip microcomputer.

When in use, the vacuum feeding box uses a controller to control the feeding process, and starts feeding after turning on the fan. When the plastic raw material reaches a certain position in the intermediate storage box, the material level sensor senses the position of the material and feeds back to the controller to control The controller controls to disconnect the blower, and the suction work stops. At the same time, the controller controls to open the discharge valve, and the plastic raw materials directly enter the hopper.

Compared with the prior art, the utility model has the advantages that a filter is provided at the air suction port of the fan, so that the fan can filter the material when the fan sucks air and vacuumizes, preventing the material particles from causing damage to the fan blades and improving the efficiency of the fan. The service life of the blower fan; in addition, the utility model has a simple structure and convenient feeding, which is beneficial to popularization. the

Description of drawings

Fig. 1 is a structural schematic diagram of a vacuum feeder for a plastic extruder.

In the figure, 1 fan, 2 hopper, 3 intermediate storage box, 4 raw material storage box, 5 controller, 6 suction pipe, 7 suction pipe, 8 discharge valve, 9 filter, 10 material level sensor, 11 pusher car.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

Referring to Fig. 1, the vacuum feeder used for plastic extruders includes a fan 1, a hopper 2, an intermediate storage box 3, a raw material storage box 4 and a controller 5, and a filter 9 is provided at the suction port of the fan 1, The filter 9 communicates with the tuyere of the intermediate storage box 3 through the suction pipe 7, the feed port of the intermediate storage box 3 communicates with the raw material storage box 4 through the suction pipe 6, and the discharge port of the intermediate storage box 3 is aligned The material inlet of the hopper 2 and the outlet of the intermediate storage box 3 are provided with a discharge valve 8, and the intermediate storage box 3 is provided with a material level sensor 10, and the controller 5 is connected with the material level sensor 10 and the discharge valve 8 respectively. and fan 1 connection.

The controller 5 is provided with a discharge valve control switch, a fan control switch and a time setting button. When the material level sensor fails, the fan can be controlled by the time setter for feeding time, or the discharge valve can be used to control the feeding time of the fan. Valve control switch and fan control switch manually control the feeding process.

One end of the suction pipe 6 extends into the bottom of the raw material storage tank 4 to prevent the intermediate storage tank 3 from inhaling air when sucking material, so as to improve the feeding efficiency.

The blower fan 1 can be mounted on a trolley 11 for easy movement.

The working principle of this product is: there is a filter at the suction port of the fan, so that the fan can filter the material when the fan is suctioning and vacuuming, so as to prevent the material particles from causing damage to the fan blades and improve the service life of the fan; The material box adopts the controller to control the material loading process. After turning on the fan, the material starts to be loaded. When the plastic material reaches a certain position in the intermediate storage box, the material level sensor senses the position of the material and feeds back to the controller, which then controls to turn off the fan. work, the suction work stops, and at the same time, the controller controls to open the discharge valve, and the plastic raw materials directly enter the hopper.

Claims (4)

1. the vacuum feeder for plastic extruder, it is characterized in that comprising blower fan (1), hopper (2), middle material storing box (3), raw material storage tank (4) and controller (5), the inlet scoop place of blower fan (1) is provided with filter (9), filter (9) is communicated with by the air port of aspiration channel (7) with middle material storing box (3), the charging aperture of middle material storing box (3) is communicated with raw material storage tank (4) by suction tube (6), the discharging opening of middle material storing box (3) aims at the charging aperture of hopper (2), the discharge outlet of middle material storing box (3) is provided with discharge valve (8), level sensor (10) is provided with in middle material storing box (3), controller (5) respectively with level sensor (10), discharge valve (8) and blower fan (1) connect.

2. the vacuum feeder for plastic extruder according to claim 1, is characterized in that described controller (5) is provided with discharge valve gauge tap, air-blower control switch and time setting button.

3. the vacuum feeder for plastic extruder according to claim 1, is characterized in that the bottom of raw material storage tank (4) is stretched in one end of described suction tube (6).

4. the vacuum feeder for plastic extruder according to claim 1, is characterized in that described blower fan (1) is arranged in go-cart (11).