CN-113387184-B - Double-pneumatic quantitative screw feeding device and working method thereof

Abstract

The invention discloses a double pneumatic quantitative screw feeding device and a working method thereof, comprising a feeding mechanism, a pneumatic mechanism, a sterilizing bin, a feeding valve and a valve core arranged in the feeding valve, one side end of the feed valve is communicated with the pneumatic mechanism, the other side end of the feed valve is communicated with the sterilizing bin, and the upper end of the feed valve is communicated with the feed mechanism. The valve core is driven to move inside the feed valve through the air cylinder, the piston and the connecting rod, so that the feed valve is controlled to be opened and closed, when the feed valve is opened, the feed screw is pushed into the feed valve through the air cylinder, the piston and the connecting rod, the speed regulating motor drives the feed screw to rotate, so that quantitative feeding is carried out on materials, after the speed regulating motor stops rotating, the feed screw is driven to move again, the feed screw is separated from the feed valve, the feed valve is closed, and thus the materials are sterilized through the sterilizing bin.

Inventors

• TAO HAITAO

Assignees

• 江苏万创灭菌设备科技有限公司
• 江苏万创灭菌设备科技有限公司

Dates

Publication Date

20260421

Application Date

20210723

Priority Date

20210723

Claims (5)

1. 1. The double pneumatic quantitative screw feeding device is characterized by comprising a feeding mechanism (1), a pneumatic mechanism (2), a sterilizing bin (3), a feeding valve (4) and a valve core (5) arranged in the feeding valve (4), wherein one side end of the feeding valve (4) is communicated with the pneumatic mechanism (2), the other side end of the feeding valve is communicated with the sterilizing bin (3), and the upper end of the feeding valve is communicated with the feeding mechanism (1); the feeding mechanism (1) comprises a screw outer sleeve (21), wherein a pneumatic component (24) is arranged at the top end of the screw outer sleeve (21), a spiral inclined feeding interface (22) is connected at the bottom end of the screw outer sleeve, a speed regulating motor (11) is arranged in the screw outer sleeve (21) below the pneumatic component, the output end of the speed regulating motor (11) is connected with a feeding screw (15) positioned in the screw outer sleeve (21), a feeder (14) is connected to the outer wall of the screw outer sleeve (21) above the feeding screw (15) and is communicated with the feeding screw, and the spiral inclined feeding interface (22) is communicated with a feeding hole at the upper end of a feeding valve (4); The pneumatic assembly (24) comprises a first air cylinder (8), wherein a first piston (9) is arranged in the first air cylinder (8), a first connecting rod (10) is arranged on one side of the first piston (9), and the first connecting rod (10) penetrates through one side of the first air cylinder (8) to extend into a screw outer sleeve (21) and is connected with the tail of a speed regulating motor (11); the pneumatic mechanism (2) comprises a second air cylinder (16), wherein one side of the second air cylinder (16) is communicated with an air cylinder bracket (19), a second piston (17) is arranged in the second air cylinder (16), a second connecting rod (18) is arranged on one side of the second piston (17), and the second connecting rod (18) extends into the air cylinder bracket (19) through one side of the second air cylinder (16) and is connected with the valve core (5), so that the valve core is driven to reciprocate; One side of the cylinder support (19) far away from the second cylinder (16) is communicated with the feeding valve (4), a spring sealing ring (20) is arranged in the feeding valve (4), and the inner side wall of the spring sealing ring (20) is tightly attached to the outer wall of the valve core (5); An output shaft of the speed regulating motor (11) is connected with the feeding screw rod (15) through a coupler (12) and a bearing (13) in sequence, so that the feeding screw rod (15) is driven to reciprocate.
2. 2. The double-pneumatic quantitative screw feeding device according to claim 1, wherein two sterilizing bin discharging holes (23) are symmetrically formed in the bottom of the outer side wall of the sterilizing bin (3).
3. 3. The double-pneumatic quantitative screw feeding device according to claim 1, wherein the two sides of the outer side wall of the first cylinder (8) are respectively provided with a high-pressure control gas inlet and outlet (6) communicated with the cylinder, and a magnetic inductor (7) is arranged on the outer side wall of the first cylinder (8) between the two high-pressure control gas inlet and outlet (6).
4. 4. The double-pneumatic quantitative screw feeding device according to claim 1, wherein the two sides of the outer side wall of the second air cylinder (16) are respectively provided with a high-pressure control air inlet and outlet (6) communicated with the air cylinders, and a magnetic inductor (7) is arranged on the outer side wall of the first air cylinder (8) between the two high-pressure control air inlet and outlet (6).
5. 5. A method of operating a double pneumatic screw feeder as claimed in claim 1, comprising the steps of: 1) Filling the feeder with materials by installing a vacuum feeding system or a screw feeding system; 2) The piston in the first cylinder is connected with a valve core in the feed valve through a connecting rod, compressed air enters a pneumatic control area from a high-pressure control air inlet and outlet to push the piston back and forth, the piston drives the valve core to move back and forth through the connecting rod, and a magnetic sensor arranged outside the first cylinder determines the opening and closing state of the feed valve through the movement of the piston; 3) When the feeding valve is in an open state, a piston in the second cylinder is connected with a speed regulating motor through a connecting rod, compressed air enters a pneumatic control area from a high-pressure control air inlet and outlet to push the piston to move downwards, an output shaft of the speed regulating motor is connected with a bearing connected with a feeding screw rod through a coupling, and the speed regulating motor is pushed to move downwards through a connecting rod of the piston, so that the feeding screw rod enters the feeding valve through an inclined feeding interface, and at the moment, a magnetic inductor arranged outside the second cylinder determines whether the feeding screw rod reaches a preset position through the movement of the piston; 4) When the feeding screw rod reaches a preset position, the speed regulating motor starts to drive the feeding screw rod to rotate according to a set speed so as to input materials in the feeder into the sterilizing bin through the feeding valve, the rotating speed and the rotating time of the speed regulating motor can be set according to actual conditions, the speed is set to be 50-1000 revolutions per minute, the time is 2-20 seconds, after the working time set by the speed regulating motor is over, the speed regulating motor stops rotating, high-pressure gas outside the second cylinder enters the pneumatic control area from the high-pressure control gas inlet and outlet to push the piston, the output shaft of the speed regulating motor drives the feeding screw rod to move upwards through the coupler so as to enable the feeding screw rod to leave the feeding valve, and at the moment, the magnetic sensor arranged outside the second cylinder determines whether the feeding screw rod reaches the preset position through the movement of the piston; 5) When the feeding screw rod reaches a preset position, a piston in a first cylinder is connected with a valve core in a feeding valve through a connecting rod, compressed air enters a pneumatic control area from a high-pressure control air inlet and outlet to push the piston, the piston drives the valve core to advance through the connecting rod, and a magnetic inductor arranged outside the first cylinder determines the on-off state of the feeding valve through the movement of the piston; 6) When the feed valve is in a closed state, materials entering the sterilizing bin are mixed with steam for sterilization and then discharged into the next closed container through the outlet of the sterilizing bin; 7) The first cylinder and the second cylinder repeat the above opening feed and closing actions again.

Description

Double-pneumatic quantitative screw feeding device and working method thereof Technical Field The invention relates to the technical field of quantitative feeding, in particular to a double pneumatic quantitative screw feeding device and a working method thereof. Background Before a lot of materials are used, the materials are required to be sterilized, the materials are added into the sterilizing bin through a feeding device, but the materials cannot be accurately and quantitatively added through the conventional feeding device, so that the situation that the materials in the sterilizing bin are too much or too little occurs easily, the situation that part of the materials cannot be effectively sterilized occurs due to the too much materials, the sterilizing efficiency is affected due to the too little materials, and the normal operation of the material sterilizing work is seriously affected; In the prior feeding device, materials stay in a feeding valve body in feeding and are subjected to heat denaturation or adhesion in the valve body to cause blockage, so that the smoothness of feeding is influenced, the sealing property of the feeding valve is poor, the leakage of powder and steam is caused, the environmental pollution is caused, and the sterilization effect and quality of products are also influenced; for this purpose, a double pneumatic quantitative screw feeder is proposed. Disclosure of Invention The invention aims to disclose a double pneumatic quantitative screw feeding device for solving the problems in the background technology. The invention also discloses a working method of the double pneumatic quantitative screw feeding device. The double-pneumatic quantitative screw feeding device comprises a feeding mechanism, a pneumatic mechanism, a sterilizing bin, a feeding valve and a valve core arranged in the feeding valve, wherein one side end of the feeding valve is communicated with the pneumatic mechanism, the other side end of the feeding valve is communicated with the sterilizing bin, and the upper end of the feeding valve is communicated with the feeding mechanism. The feeding mechanism comprises a screw outer sleeve, wherein the top end of the screw outer sleeve is provided with a pneumatic assembly, the bottom end of the screw outer sleeve is connected with a spiral oblique feeding interface, a speed regulating motor is arranged in the screw outer sleeve below the pneumatic assembly, the output end of the speed regulating motor is connected with a feeding screw rod positioned in the screw outer sleeve, the outer wall of the screw outer sleeve above the feeding screw rod is connected with a feeder and communicated with the feeder, and the spiral oblique feeding interface is communicated with a feeding hole at the upper end of a feeding valve. The pneumatic assembly comprises a first cylinder, a first piston is arranged in the first cylinder, a first connecting rod is arranged on one side of the first piston, penetrates through one side of the first cylinder, extends into the outer sleeve of the screw rod, is connected with the tail of the speed regulating motor, and drives the connecting rod through the piston, so that the speed regulating motor is driven to reciprocate. Preferably, an output shaft of the speed regulating motor is connected with the feeding screw rod sequentially through a coupler and a bearing, so that the feeding screw rod is driven to reciprocate. Preferably, two sterilizing bin discharge holes are symmetrically formed in the bottom of the outer side wall of the sterilizing bin, and materials can be sterilized through the arrangement. The pneumatic mechanism comprises a second air cylinder, wherein one side of the second air cylinder is communicated with an air cylinder support, a second piston is arranged in the second air cylinder, a second connecting rod is arranged on one side of the second piston, and the second connecting rod penetrates through one side of the second air cylinder, extends into the air cylinder support and is connected with a valve core, so that the valve core is driven to reciprocate. Preferably, one side, far away from the second cylinder, of the cylinder support is communicated with a feeding valve, a spring sealing ring is arranged in the feeding valve, and the inner side wall of the spring sealing ring is tightly attached to the outer wall of the valve core. Preferably, the first cylinder and the second cylinder have the same structure, the two sides of the outer side wall of the first cylinder are respectively provided with a high-pressure control gas inlet and a high-pressure control gas outlet which are communicated with the cylinders, and a magnetic inductor is arranged on the outer side wall of the first cylinder between the two high-pressure control gas inlets and outlets. The working method for the double pneumatic quantitative screw feeding device comprises the following steps: 1) Filling the feeder with materials by installing a vacuu