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CN-122009586-A - Negative pressure filling device in powder

CN122009586ACN 122009586 ACN122009586 ACN 122009586ACN-122009586-A

Abstract

The application discloses a powder internal negative pressure filling device which comprises a discharging pipe, a sealing piece, a vacuum pipe and a cleaning component, wherein the sealing piece is used for controlling opening and closing of an opening at the lower end of the discharging pipe, the vacuum pipe is arranged at the outer side of the discharging pipe, an exhaust cavity is reserved between the vacuum pipe and the discharging pipe, the exhaust cavity is communicated with a material container, a negative pressure pipe I communicated with the exhaust cavity is fixedly arranged on the vacuum pipe, the negative pressure pipe I is communicated with an external negative pressure unit and is used for generating negative pressure in the exhaust cavity, an abutting disc used for sealing the material container is arranged at the outer side of the vacuum pipe, the cleaning component is positioned at the lower end of the abutting disc and comprises a plurality of sealing plates arranged along the circumferential direction of the abutting disc, the sealing plates are provided with opening and closing pieces used for driving all the sealing plates to close or separate, a complete annular structure is formed when all the sealing plates are mutually closed, a cleaning cavity is reserved between the sealing plates and the abutting disc is fixedly provided with a negative pressure pipe II communicated with the cleaning cavity. The application has the effects of prolonging the service life of the filling mechanism and improving the filling accuracy and the neatness.

Inventors

  • ZHU SUMING
  • ZHANG YONGJUN

Assignees

  • 江苏久煜智能制造股份有限公司

Dates

Publication Date
20260512
Application Date
20260309

Claims (9)

  1. 1. Negative pressure filling device in powder, including arranging material pipe (1) along vertical setting, arrange material pipe (1) upper end and material conveying mechanism intercommunication, its characterized in that still includes: The plugging piece (2) is positioned at the inner side of the discharge pipe (1) and is provided with a cutting state and an opening state and is used for closing or opening the opening at the lower end part of the discharge pipe (1); The vacuum tube (3) is arranged at the outer side of the discharge tube (1), an exhaust cavity is reserved between the vacuum tube (3) and the discharge tube (1), an abutting disc (41) is arranged at the outer side of the vacuum tube (3), when materials are filled, the lower end part of the discharge tube (1) stretches into the material container, the abutting disc (41) seals the opening of the material container, the exhaust cavity is communicated with the material container, the vacuum tube (3) is fixedly provided with a negative pressure tube I (42) communicated with the exhaust cavity, and the negative pressure tube I (42) is used for being communicated with an external negative pressure unit and generating negative pressure in the exhaust cavity; The cleaning assembly is located at the lower end of the abutting disc (41) and comprises a plurality of blocking plates (51), the blocking plates (51) are arranged along the circumference of the abutting disc (41), the abutting disc (41) is provided with an opening and closing piece (7) for driving all the blocking plates (51) to close or separate, when all the blocking plates (51) are mutually close, a complete annular structure is formed, a cleaning cavity is reserved between the upper end face of the blocking plate (51) and the lower end face of the abutting disc (41), and the abutting disc (41) is fixedly provided with a negative pressure pipe II (47) communicated with the cleaning cavity.
  2. 2. The negative pressure filling device in powder lot according to claim 1, wherein the abutting disc (41) is in sliding connection with the vacuum tube (3) along the axis direction, the isolation disc (31) is fixedly arranged on the outer side of the vacuum tube (3), the movable tube (43) is fixedly arranged on the upper end portion of the abutting disc (41), the movable tube (43) is sleeved on the outer side of the isolation disc (31) and is in sliding connection with the isolation disc (31), the isolation disc (31) vertically divides the movable tube (43) into two independent chambers, the independent chambers above the movable tube (43) are arranged as compression chambers, the compression chambers are arranged in a closed mode, and the movable tube (43) is communicated with a negative pressure tube III (44) communicated with the compression chambers.
  3. 3. The negative pressure filling device in powder lot according to claim 2, wherein the pushing ring (61) is sleeved on the outer side of the discharging pipe (1), the pushing ring (61) is located at the upper end of the movable barrel (43) and is in sliding connection with the discharging pipe (1) along the axis direction, an elastic piece (62) is connected between the movable barrel (43) and the pushing ring (61), and a lifting piece (63) for driving the pushing ring (61) to move along the axial direction is arranged on the outer side of the discharging pipe (1).
  4. 4. The negative pressure filling device in powder lot according to claim 3, further comprising a detection ring (45) which is positioned at the lower end part of the abutting disc (41) and is in sliding connection with the abutting disc (41) along the axial direction, wherein a pressure detection sensor (46) is arranged on the inner side of the abutting disc (41), the pressure detection sensor (46) is connected with the detection ring (45) and is used for measuring the pressure applied to the lower end surface of the detection ring (45) and controlling the lifting piece (63) to work according to the pressure detection result, and when filling materials, the lower end surface of the detection ring (45) is in contact with an opening of a material container.
  5. 5. The negative pressure filling device in powder lot is characterized in that the opening and closing piece (7) comprises a rotating ring (71) and a power part (72), one side, far away from the axis of the abutting disc (41), of the plugging plate (51) is rotationally connected with the abutting disc (41), the rotating axis is parallel to the axis of the abutting disc (41), the rotating ring (71) is positioned at the lower end parts of all the plugging plates (51) and is coaxially rotationally connected with the abutting disc (41), the power part (72) is arranged on the abutting disc (41) and used for driving the rotating ring (71) to rotate, the lower end part of the plugging plate (51) is fixedly connected with a rotating rod (511), the rotating ring (71) is circumferentially provided with a plurality of spiral guide grooves (711), the rotating rod (511) is inserted into the spiral guide grooves (711) and slides along the spiral guide grooves (711), and the rotating ring (71) drives the plugging plate (51) to rotate through the rotating rod (511) when rotating.
  6. 6. The negative pressure filling device in powder lot is characterized in that the blocking piece (2) comprises a blocking rod (21), a containing tube (22) and a pushing piece (23), the diameter of the lower end portion of the discharging tube (1) gradually decreases from top to bottom, the containing tube (22) is located on the inner side of the discharging tube (1) and is coaxially fixed with the discharging tube (1), a channel for materials to pass through is reserved between the outer circular surface of the containing tube (22) and the inner wall of the discharging tube (1), the blocking rod (21) is located in the containing tube (22) and is in sliding connection with the containing tube (22) along the direction close to or far away from the opening of the lower end portion of the discharging tube (1), and the pushing piece (23) is arranged on the discharging tube (1) and used for driving the blocking rod (21) to move, and the blocking rod (21) is used for blocking the discharging tube (1) when extending into the opening of the discharging tube (1).
  7. 7. The negative pressure filling device in powder lot is characterized in that the lower end part of the discharging pipe (1) is coaxially connected with a distributing head (8), the distributing head (8) is vertically provided with a plurality of discharging ports (81), all the discharging ports (81) are communicated with the discharging pipe (1), and the discharging ports (81) are obliquely arranged from top to bottom in the direction of pointing to the excircle by the axis of the discharging pipe (1).
  8. 8. The negative pressure filling device for powder lot according to claim 7, wherein the distributing head (8) is rotatably connected with the discharging pipe (1), and the vacuum pipe (3) is provided with a rotating member (9) for driving the distributing head (8) to rotate.
  9. 9. The negative pressure filling device in powder lot according to claim 6, wherein a plurality of flexible guide pads (11) are circumferentially distributed on the inner side of the discharge pipe (1), and when the plugging rod (21) stretches into the opening of the discharge pipe (1), the flexible guide pads (11) are contacted with the plugging rod (21) and guide and rectify the plugging rod (21).

Description

Negative pressure filling device in powder Technical Field The invention relates to the technical field of filling equipment, in particular to a powder internal negative pressure filling device. Background The material filling technology has wide application in industrial production, especially in pharmaceutical and food industries, and has extremely high filling efficiency and precision requirements. There are various filling modes of materials, wherein common filling mechanisms usually adopt a screw blanking or gravity blanking mode to discharge powder. Related art can refer to chinese patent publication No. CN223764829U and discloses a packing auger structure for powder filling, including packing auger transport main part, packing auger transport main part includes hob, stainless steel inner hexagonal cover, axostylus axostyle and motor, and hexagonal cover fixed connection is in the bottom of axostylus axostyle in the stainless steel, and the hob top is installed the scraper blade through the staple bolt, and the hob top is connected with hexagonal cover in the stainless steel, and the motor is located the top of axostylus axostyle. The assembly composed of the screw rod, the stainless steel inner hexagonal sleeve, the shaft rod and the motor is used for providing a set of auger structure with high maintenance convenience for powder filling, the assembly is carried out through magnetic attraction of the magnetic structure, the existing clamping groove buckle type assembly mode is replaced, the situation that powder is difficult to disassemble in the later stage due to a large amount of retention in the clamping groove can be effectively reduced, the situation that the powder remains and goes bad due to the fact that the powder is retained in a clamping groove gap is avoided, and the sanitary safety of powder filling processing is greatly improved. In view of the above related art, in the screw filling method, powder is conveyed by a screw, the precision is high, the efficiency is low, and the screw abrasion is serious, while in the gravity filling method, the gravity filling method mainly utilizes the dead weight of the powder to carry out filling, the structure is simple, the precision is low, and the powder is easy to influence by the fluidity of the powder, so that a novel filling mechanism is needed to solve the problems in the above. Disclosure of Invention In order to reduce equipment loss and improve filling precision, the application provides a negative pressure filling device in powder. The application provides a powder internal negative pressure filling device, which adopts the following technical scheme: The negative pressure filling device in powder comprises a discharging pipe which is vertically arranged, a blocking piece which is positioned at the inner side of the discharging pipe and provided with an opening for closing or opening the lower end of the discharging pipe, a vacuum pipe which is arranged at the outer side of the discharging pipe and provided with an exhaust cavity between the vacuum pipe and the discharging pipe, an abutting disc which is arranged at the outer side of the vacuum pipe, when the powder is filled, the lower end of the discharging pipe stretches into a material container, the abutting disc blocks the opening of the material container, the exhaust cavity is communicated with the material container, a negative pressure pipe I which is communicated with the exhaust cavity is fixedly arranged on the vacuum pipe, the negative pressure pipe I is used for communicating an external negative pressure unit and generating negative pressure in the exhaust cavity, and a cleaning component which is positioned at the lower end of the abutting disc and comprises a plurality of blocking plates which are circumferentially arranged along the abutting disc, the abutting disc is provided with an opening and closing piece for driving all the blocking plates to close or separate, when all the blocking plates are mutually close, a complete annular structure is formed, a cleaning cavity is reserved between the upper end face of the blocking plate and the abutting disc, and the negative pressure pipe I is fixedly arranged on the abutting disc, and the cleaning cavity. Through adopting above-mentioned technical scheme, under the initial condition, the shutoff of shutoff piece is arranged the material pipe, under the filling state, stretches into in the material container with arranging material pipe lower extreme, drives the butt dish through the vacuum tube and seals the container opening this moment, makes the exhaust cavity in through negative pressure pipe one through outside negative pressure unit this moment and produces negative pressure to with the gaseous discharge in the material container. The blocking piece is opened, so that the materials in the material conveying mechanism are conveyed into the material container along the material discharging pipe, and the material contain