CN212331827U - Membrane bubble stabilizing frame - Google Patents

Abstract

The utility model discloses a membrane bubble stabilizing support, including upper plate and hypoplastron, set up the round hole that supplies the membrane bubble to pass at the center of upper plate and hypoplastron, around round hole circumference evenly distributed have three and above vertical rotation axis between upper and lower board, the rotation axis passes through the bearing frame and rotates with upper and lower board respectively and be connected, is provided with double sprocket in the one end that every rotation axis is close to the upper plate, has many stabilizing rollers at double sprocket below horizontal parallel arrangement, and many stabilizing rollers on the adjacent rotation axis extend according to clockwise or anticlockwise and enclose into the external polygonal shape of membrane bubble every stabilizing roller is gone up to the cover and is equipped with a plurality of isometric collars, and the collar can rotate for stabilizing the roller. The utility model discloses can conveniently adjust the membrane bubble diameter, reduce the fish tail, stabilize the membrane bubble, improve the blown film quality.

Description

Membrane bubble stabilizing frame

Technical Field

The utility model particularly relates to a membrane bubble steady rest belongs to inflation film manufacturing machine technical field among the packaging machinery.

Background

The film blowing machine is a special device for heating and melting plastic particles and then blowing the plastic particles into a film, and the basic working flow of the film blowing machine is that raw material particles are added into a hopper and then are operated by a screw rod, conveyed into a feeding section, heated, melted, compressed and plasticized, filtered by a tee joint and then enter a die head, and discharged by a die orifice to form a film bubble, and the film bubble is compressed by a herringbone plate after being cooled, stretched again by a traction roller to enable the width, thickness and strength of the film to reach certain requirements, and finally wound by a film winding roller to form the film.

The existing film blowing machine causes uneven film cooling due to the fact that film bubbles are inclined by cooling air, so that the transverse thickness of a film is uneven, obvious wrinkles are caused after accumulation, and the quality after film rolling is influenced. In order to stabilize the bubble, the prior art generally adopts a bubble fixing frame, controls the central position of the bubble not to deviate or swing, and ensures the bubble to stably run. The film bubble fixing frame generally comprises an annular fixing frame, a plurality of stabilizing rollers with horizontal installation directions are installed in the annular fixing frame, the stabilizing rollers are arranged into a plurality of layers and a plurality of columns, each bubble stabilizing roller on the same layer is arranged into a circle, and each stabilizing roller on the same column is arranged from top to bottom. In operation, each stabilizing roller surrounds the bubble at its center, and the horizontal projection of each stabilizing roller is distributed around and tangent to a circle, the diameter of which is referred to as the inner diameter of the stabilizer, thereby stabilizing the bubble. However, in the prior art, the bubble stabilizing frame is in hard contact with the bubble in the bubble lifting process, the bubble is easily scratched, and the problem that the inner diameter of the stabilizing frame is not flexibly adjusted exists.

Disclosure of Invention

Not enough to prior art, the utility model provides a membrane bubble stabilizer, its aim at solve the stabilizer to the fish tail problem of membrane bubble to and solve the inflexible problem of internal diameter adjustment.

The technical scheme of the utility model is that: a film bubble stabilizing frame comprises an upper plate and a lower plate, wherein a round hole for a film bubble to pass through is formed in the center of the upper plate and the center of the lower plate, three or more vertical rotating shafts are uniformly distributed between the upper plate and the lower plate around the circumference of the round hole, the rotating shafts are respectively and rotatably connected with the upper plate and the lower plate through bearing seats, a plurality of stabilizing rollers are horizontally arranged on each rotating shaft in parallel, and the plurality of stabilizing rollers on adjacent rotating shafts extend in a clockwise or anticlockwise direction to form a shape of an external regular polygon surrounding the film bubble; each stabilizing roller is sleeved with a plurality of equal-diameter roller rings, the tail end of each stabilizing roller is also provided with a blocking ring, and the roller rings can rotate relative to the stabilizing rollers.

Furthermore, double-row chain wheels are arranged at one end, close to the upper plate, above the stabilizing roller of each rotating shaft, and all the double-row chain wheels are located at the same height.

Further, a plurality of stabilizing rollers on the adjacent rotating shafts are arranged at intervals in the vertical direction.

Furthermore, the upper plate and the lower plate are rectangular, the upper plate and the lower plate are fixedly connected through four stand columns, and the stand columns are arranged on the periphery of the round hole and distributed at four corners of the rectangular upper plate and the rectangular lower plate.

Furthermore, two opposite sides of the rectangle of the upper plate are fixedly connected with L-shaped connecting plates.

The utility model has the advantages that: the shape of an external regular polygon of the film bubble can be surrounded by a plurality of stabilizing rollers on the rotating shaft, so that the stable film bubble is supported; the double rows of chain wheels on the adjacent rotating shafts are connected through chains, and the chains are driven by the motor to enable all the rotating shafts to synchronously rotate in the same direction, so that the inner diameter of the stabilizing frame can be conveniently adjusted, and the deviation of the circle center cannot be generated; when the film bubble is pulled upwards through the stabilizing frame, the film bubble is in soft contact with the roller rings on the stabilizing rollers, and the roller rings can rotate freely, so that the scratch of the stabilizing rollers on the film bubble is obviously reduced, the film bubble is stabilized, and the film blowing quality is improved.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a side view of the present invention.

The labels in the figure are: 1 upper plate, 2 lower plate, 3 upright posts, 4 rotating shafts, 5 film bubbles, 11L-shaped connecting plates, 41 bearing seats, 42 double-row chain wheels, 43 stabilizing rollers, 44 roller rings and 45 blocking rings.

Detailed Description

In order to clearly illustrate the technical features of the present technical solution, the present solution is explained in detail by the following specific embodiments.

As shown in fig. 1-3, a film bubble stabilizing frame comprises an upper plate 1 and a lower plate 2, wherein the upper plate and the lower plate are rectangular, a circular hole for a film bubble 5 to pass through is formed in the center of the upper plate and the lower plate, the upper plate and the lower plate are overlapped at a certain interval in the vertical direction, the upper plate 1 and the lower plate 2 are fixedly connected through four upright posts 3, the upright posts 3 are arranged on the periphery of the circular hole and distributed at four corners of the rectangle of the upper plate and the lower plate, two opposite sides of the rectangle of the upper plate 1 are also fixedly connected with L-shaped connecting plates 11, the L-shaped connecting plates 11 are used for fixedly installing the stabilizing frame on a frame of a film blowing machine, and the frame of the film blowing machine is.

Four vertical rotating shafts 4 are uniformly distributed around the circumference of a circular hole between an upper plate and a lower plate, each rotating shaft 4 is respectively and rotatably connected with the upper plate and the lower plate through a bearing seat 41, one end of each rotating shaft 4, which is close to the upper plate 1, is provided with a double-row chain wheel 42, all the double-row chain wheels are positioned at the same height, two stabilizing rollers 43 are horizontally and parallelly arranged below the double-row chain wheels 42, each stabilizing roller 43 is sleeved with a plurality of equal-diameter roller rings 44, the inner diameter of each roller ring 44 is slightly larger than the outer diameter of the stabilizing roller 43, the roller rings 44 can freely rotate relative to the stabilizing rollers 43, and the tail end of each stabilizing roller is also provided with a check ring 45.

Two stabilizing rollers on adjacent rotating shafts are arranged at intervals in the vertical direction, a plurality of stabilizing rollers on the adjacent rotating shafts extend in the anticlockwise direction to form a shape of an external polygon which surrounds a film bubble, as shown in fig. 2, the stabilizing rollers surround a square, and the film bubble 5 is positioned in an inscribed circle of the square to form four layers of supporting constraint on the film bubble.

In the actual use process, the double-row chain wheels on the adjacent rotating shafts are connected together through chains, and the chains are driven by one motor to rotate, so that the four rotating shafts synchronously rotate, the chains and the motors are not shown in the figure, and the chain and the motors belong to the common transmission mode in the field of machinery. The rotating shafts drive the stabilizing rollers to rotate clockwise to increase the diameter of the film bubble, and the diameter of the film bubble is reduced during counterclockwise rotation, so that flexible adjustment in production is facilitated, and the center of the film bubble cannot deviate due to synchronous motion of the four rotating shafts. After the diameter of the film bubble surrounded by the stabilizing roller is adjusted, in the process that the film bubble is lifted upwards, the film bubble is in soft contact with the roller ring on the stabilizing roller, and the roller ring can rotate freely according to the friction force.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and those skilled in the art should understand that those skilled in the art can make changes, modifications, additions or substitutions within the spirit of the present invention without departing from the spirit of the present invention, and shall also belong to the protection scope of the claims of the present invention.

Claims (5)

1. The utility model provides a membrane bubble stabilizer, includes upper plate and hypoplastron, its characterized in that: the center of the upper plate and the lower plate is provided with a round hole for a film bubble to pass through, three or more vertical rotating shafts are uniformly distributed between the upper plate and the lower plate around the circumference of the round hole, the rotating shafts are respectively and rotatably connected with the upper plate and the lower plate through bearing seats, a plurality of stabilizing rollers are horizontally and parallelly arranged on each rotating shaft, and the plurality of stabilizing rollers on adjacent rotating shafts extend in a clockwise or anticlockwise direction to form a shape of an external regular polygon surrounding the film bubble; each stabilizing roller is sleeved with a plurality of equal-diameter roller rings, the tail end of each stabilizing roller is also provided with a blocking ring, and the roller rings can rotate relative to the stabilizing rollers.

2. A membrane bubble stabilizer according to claim 1, wherein: and one end of the upper part of the stabilizing roller of each rotating shaft, which is close to the upper plate, is provided with double-row chain wheels, and all the double-row chain wheels are positioned at the same height.

3. A membrane bubble stabilizer according to claim 1, wherein: the plurality of stabilizing rollers on the adjacent rotating shafts are arranged at intervals in the vertical direction.

4. A membrane bubble stabilizer according to claim 1, wherein: the upper plate and the lower plate are rectangular, the upper plate and the lower plate are fixedly connected through four stand columns, and the stand columns are arranged on the periphery of the round hole and distributed at four corners of the rectangular upper plate and the rectangular lower plate.

5. A membrane bubble stabilizer according to claim 1, wherein: and L-shaped connecting plates are fixedly connected to two opposite sides of the rectangle of the upper plate.

Images