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CN-121990347-A - Dumping type inner plug feeding method

CN121990347ACN 121990347 ACN121990347 ACN 121990347ACN-121990347-A

Abstract

The invention discloses a pouring type inner plug feeding method, and relates to the technical field of packaging machinery. The method abandons the traditional vibration disc and adopts a brand new feeding principle of combining gravity dumping with mechanical screening. The method comprises the steps that a spiral arm drives a material shovel to scoop up an inner plug from a hopper and tilt the inner plug to an inner plug guide plate, the inner plug is received by utilizing a U-shaped groove structure of a direct vibration rail, the inner plug is enabled to take on a plurality of preset, overturning, obliquely-placed, sideways and other postures, the inner plug in the sideways posture automatically falls back from a hollowed bottom of the groove, a screening hairbrush which rotates synchronously with the spiral arm is arranged above the direct vibration rail, the hairbrush scans the rail once every half cycle, the obliquely-placed posture is corrected, the overturning posture is scanned back to the hopper, and when a full-material sensor detects that the rail is full, the screening hairbrush stops above the rail to realize braking. The invention greatly reduces feeding noise, the feeding speed can reach more than 2 times of that of the traditional vibration disc, and only the direct vibration track needs to be replaced when the specification of the inner plug is replaced, thereby having the advantages of high speed, low noise and convenient and fast model replacement.

Inventors

  • HUANG HAONAN

Assignees

  • 黄浩南

Dates

Publication Date
20260508
Application Date
20260412

Claims (7)

  1. 1. The pouring type inner plug feeding method is applied to equipment comprising a hopper, an inner plug pouring device, an inner plug guide plate, a direct vibration track, a screening positive brush device and a control system, and is characterized by comprising the following steps of: The method comprises the steps of firstly, pouring material, namely pouring unordered inner plugs into a hopper in batches, driving a rotating arm to rotate by a rotary driving unit, repeatedly scooping the inner plugs by using a plurality of material scoops fixed on the rotating arm, enabling the inner plugs to slide inwards onto an inner plug guide plate under the action of gravity when the material scoops rotate to a high-position inclined angle, and guiding the inner plugs to flow to the inlet end of a direct vibration track by the inner plug guide plate; The method comprises the steps of pre-falling and preliminary screening, wherein the cross section of a direct vibration track is of a U-shaped structure, under the vibration action of the direct vibration track, the falling inner plug presents various postures based on cap-shaped geometric characteristics, wherein the preset postures of the cap top facing downwards and the cap peak leaning against the U-shaped top surface are realized, the cap top facing upwards and the cap peak facing downwards are in overturning postures, the inclined postures of the cap top and the cap peak leaning against the two sides of the U-shaped groove respectively are realized, the axial line of the inclined postures is parallel to the track, the bottom of the U-shaped groove of the direct vibration track is provided with a hollowed-out opening, and the inner plug in the sideways posture automatically falls back to a hopper through the hollowed-out opening; Setting a screening hairbrush device which rotates synchronously with the radial arm above the direct vibration track, wherein the screening hairbrush device comprises a rotary central shaft and hairbrush bodies arranged on two sides of the rotary central shaft; in the rotating process, the brush body sweeps over the U-shaped top surface of the straight vibrating rail once every half cycle, the inner plug in the inclined posture is corrected to be in a preset posture, the inner plug in the overturning posture and the inner plug in the inclined posture which cannot be corrected are swept back to the hopper, and the inner plug in the preset posture passes normally; And step four, full material detection and start-stop control, namely detecting the full state of the inner plug by using a full material sensor arranged at the downstream of the direct vibration track, controlling the rotating arm and the positive screening brush to stop rotating according to signals of the positive screening brush positioning sensor by a control system when the inner plug is full, stopping the brush body at a braking position covering the direct vibration track, and recovering rotating when the inner plug is required to be supplemented.
  2. 2. The method of claim 1, wherein in step three, the rotation center shaft of the brush device is coaxially installed with the radial arm and is synchronously driven by the same rotation driving unit.
  3. 3. The method of claim 1, wherein in the fourth step, frictional resistance is generated to the rear inner plug to achieve physical braking when the brush body is stopped above the direct vibration rail.
  4. 4. The method for feeding the pouring type inner plug according to claim 1, wherein the shovel is of an arc-shaped structure, and an opening for the inner plug to slide down is formed at one end, close to the center of the rotating arm.
  5. 5. The method for feeding the pouring type inner plug according to claim 1, wherein when the inner plugs with different specifications are replaced, only the direct vibration track with the corresponding width is required to be replaced, and the structures of the hopper and the inner plug pouring device are kept unchanged.
  6. 6. The method of claim 1, wherein the brush body is a cylindrical brush or a semicircular brush, and the direction of the brush hair is arranged radially outwards along the central axis of rotation.
  7. 7. The method for feeding the pouring type inner plug according to claim 1, wherein the inner plug guide plate is arranged below a rotating center area of the radial arm and is in an inclined landslide shape and used for guiding and collecting the inner plug to a direct vibration track.

Description

Dumping type inner plug feeding method Technical Field The invention relates to the technical field of packaging machinery, in particular to a method and a device for automatically arranging and feeding a bottle body inner plug in a liquid filling production line. Background In the field of liquid packaging, when a rigid container such as a glass bottle, a plastic bottle or a porcelain bottle is used for containing liquid, an inner plug is usually required to be pressed into the bottle mouth before the bottle cap is screwed to prevent the liquid from leaking or volatilizing from the bottle mouth. The inner plug is generally of cap-shaped construction having a crown and a bill. On an automatic filling production line, the efficient and orderly conveying of the disordered inner plugs to the plug pressing station is a key link for ensuring the production efficiency. At present, a vibration disc (vibration feeder) is commonly adopted in the industry to sort and feed the inner plugs. The vibration disk forces the inner plug to climb along the spiral track by utilizing the electromagnetic vibration principle, and in the process, the inner plug with a preset gesture is screened out by utilizing physical structures such as a notch, a hook and the like on the track, and finally the inner plug is sent into a linear vibration track (for short, a direct vibration track). However, the existing feeding mode of the vibrating disk has the following significant defects in practical application: the noise pollution is serious, when the vibration disk works, the impact of the electromagnet and the armature can generate continuous high-decibel noise due to the resonance of the hopper wall, and the workshop working environment is deteriorated. The replacement and debugging are complicated, when inner plugs with different diameters are required to be replaced for producing bottle types with different specifications, the vibrating disc top disc with corresponding specifications is required to be replaced integrally, the requirement on the butt joint precision of the discharging port of the vibrating disc and the direct vibrating track is high, the debugging is time-consuming again, and the flexible switching efficiency of the production line is seriously affected. The feeding speed bottleneck is limited by a single-row conveying principle of a spiral track of a vibration disc, so that the feeding speed has an upper limit for preventing materials from stacking and clamping stagnation, and the requirement of a high-speed filling production line (such as thousands of bottles per hour) is difficult to meet. Disclosure of Invention First, the technical problem to be solved The invention aims to overcome the defects of the prior art and provides a pouring type inner plug feeding method. The method abandons the traditional vibration disc, adopts the principle of combining mechanical shoveling and gravity dumping with direct vibration screening, and aims to solve the problems of high noise, slow transformation and limited feeding speed in the prior art. (II) technical scheme In order to achieve the above purpose, the invention provides a dumping type inner plug feeding method which is applied to equipment comprising a hopper, an inner plug dumping device, an inner plug guide plate, a direct vibration track, a screening hairbrush device and a control system, and is characterized by comprising the following steps: step one, dumping cloth The inner plug dumping device comprises a rotary driving unit and a rotating arm driven by the rotary driving unit to rotate, wherein a plurality of material shovels are fixedly arranged on the rotating arm, the rotating arm rotates to drive the material shovels to shovel the inner plugs in the hopper, when the material shovels rotate to a high-position inclined angle along with the rotating arm, the inner plugs slide and slide from an outer ring region of the material shovel to an inner ring opening region under the action of gravity and finally fall on an inner plug guide plate arranged below a rotating circle center region of the rotating arm, and the inner plug guide plate guides an inlet end of a vibration rail of the inner plug Xiang Zhi to gather. Step two, gesture pre-falling and preliminary screening The cross section of the direct vibration track is of a U-shaped structure and comprises a U-shaped groove bottom and U-shaped top surfaces at two sides, and the inner plug guide plate guides an inner plug to fall onto the direct vibration track which generates linear reciprocating vibration. The dropped inner plug assumes a variety of attitudes based on the cap-shaped geometry of the inner plug: the first posture is a preset posture, wherein the cap top is downwards inserted into the U-shaped groove, and the cap peak is lapped on the top surfaces of the two sides of the U-shaped groove; The second posture is a turning posture: the top of the hat is upward, the cap peak is downward located in the U-sh