CN205467303U - Inflation film manufacturing machine that plastic packaging material was used - Google Patents

Abstract

The utility model belongs to the technical field of film blowing and discloses a film blowing machine for plastic packaging materials, which is used to solve the problem of uneven heating temperature of the existing film blowing machine. The utility model comprises an extruder and a die head. The extruder includes a machine barrel and a drive motor. The drive motor and the die head are respectively connected to two ends of the machine barrel. A rotating shaft, the barrel is also connected with a feed hopper for placing plastic, the barrel is covered with a heating device, the shaft includes an inner cylinder and an outer cylinder, and the outer cylinder is sleeved outside the inner cylinder And form a vacuum steam chamber, the inner wall of the steam chamber is adsorbed with a liquid-absorbing core, the steam chamber is filled with working liquid, and one end of the inner cylinder is provided with a drive wheel that is connected to the drive motor. Ring gear, the other end of the inner barrel is installed on the machine barrel through a bearing.

Description

A film blowing machine for plastic packaging materials

technical field

The utility model belongs to the technical field of film blowing, and specifically discloses a film blowing machine for plastic packaging materials.

Background technique

Aluminum-plastic composite packaging material is a common packaging material, which is widely used in packaging such as milk and soft drinks. The plastic film in aluminum-plastic composite packaging materials is usually blown by a film blowing machine in plastic packaging machinery and then bagged by a bag making mechanism.

The film blowing machine is mainly composed of extruder, machine head, die head, cooling device, bubble stabilizer, herringbone plate, traction roller, coiling device, etc. It heats and melts plastic particles and blows them into films. The working process of the film blowing machine is as follows: dry plastic particles are added to the hopper, and the weight of the plastic particles enters the screw from the hopper. When the plastic particles are in contact with the beveled edge of the thread, the rotating bevel faces the plastic and is perpendicular to the bevel face. The thrust pushes the plastic particles forward. During the process, due to the friction between the plastic and the screw, the plastic and the barrel, and the collision and wear between the plastic particles, it is also gradually melted due to the external heating of the barrel; the molten plastic Filter the impurity through the machine head and come out from the die mouth of the die head. After cooling by the air ring, blowing, the finished film is rolled into a roll by the herringbone plate, the traction roller and the coiling.

There are also many technical documents about blown film machines in the prior art. For example, the utility model patent with application number 201420732345.1 discloses a new type of blown film machine, including a feeding funnel, a feeding port, a crushing bin, a base, and a crushing and accumulating device. , melting device, melting bin, blown film forming device, the feeding funnel is installed on the upper part of the feeding port, the lower part of the feeding port is connected to the crushing bin, the crushing and gathering device is located inside the crushing bin, the left side of the crushing bin is connected to the melting bin, and the melting bin The lower part is equipped with a melting device, the upper part is a blown film forming device, and the lower end of the entire blown film machine is equipped with a metal base; there are 2 dust suction ports on the inner side wall of the feed port, and are connected to the dust suction device through wires. There is a detachable dust bag at the bottom; a filter device is installed in the middle of the feed inlet, and it is connected to the vibration plate below through a connecting rod. The vibration plate is hollow in the middle and connected to the vibration controller through a wire.

The utility model patent with the application number of 201520251205.7 discloses a film blowing machine, which includes a frame, an organic barrel is arranged on the frame, a screw is arranged in the barrel, a hopper is arranged on the barrel, and a reducer is arranged at one end of the barrel. The other end is connected with the main heater, the barrel is wrapped with a sub heater, one end of the screw is connected with the reducer, the main heater is connected with the blown film mold, the outlet of the blown film mold is upward, and the outlet of the blown film mold is connected with a The air ring includes the lower plate fixed on the blown film mold and the upper plate screwed on the lower plate, the bottom of the lower plate is provided with an air inlet, the middle part of the upper plate and the lower plate is provided with a film channel, the upper plate and the lower plate There is a multi-bending air channel connecting the air inlet of the lower plate and the film channel. The section of the air channel close to the film channel is in the shape of a circular table. There is a guide device, the guide device is located above the air ring, the guide device includes four fixed blocks vertically fixed on the bracket by screws, the four fixed blocks are arranged in a square, and each fixed block is respectively provided with a horizontal plastic rod, In the vertical direction, the four plastic rods are arranged in dislocation. The top of the bracket is equipped with a shrinking device and a pressing device. The shrinking device includes two guide plates in a figure-eight state. The upper ends of the guide plates are respectively hinged on the bracket. The lower end is connected by two connecting blocks with waist-shaped holes. Two bolts are respectively arranged in the waist-shaped holes of the two connecting blocks. The bolts are respectively connected with the guide plate. The pressing device is located above the shrinking device. There are two fixed plates parallel to each other, fixed rollers and movable rollers slidingly arranged on the fixed plates are installed between the two fixed plates, transition rollers are installed in the middle of the horizontal side of the frame, and transition rollers are installed in the lower part of the horizontal side of the frame. A support plate, a motor is arranged on the support plate, a connecting rod is fixed on the output shaft of the motor, a T-shaped block is fixed on the connecting rod, the other end of the connecting rod is provided with threads and is threadedly connected with a T-shaped threaded block, and the T-shaped block and The step of the T-shaped threaded block is sleeved with a winding drum.

The utility model patent with the application number 201520631404.0 discloses a film blowing machine, including an extruder, a die head, an air ring, a bracket, a herringbone plate, a calendering roller, a guide roller and a winding roller, and the herringbone plate is installed on the bracket , the herringbone plate is located directly above the air ring, and also includes two edge folders, which are installed on the bracket, and the two edge folders are respectively arranged on the two opening sides of the front and rear of the herringbone plate; the two edge folders The inner walls facing each other are gradually inclined from bottom to top; there are spiral grooves on the surface of the guide roller, and the spiral grooves at both ends of the guide roller have opposite directions of rotation; the distance between the two edge folders can be adjusted; There is a hand wheel on the edge folder, and the two edge folders can move toward each other by adjusting the corresponding hand wheels; the inner walls of the two edge folders are in an isosceles triangle structure, and the isosceles triangle The two waists of the frame correspond to the left and right side panels of the herringbone board respectively; the vertical centerlines of the two edge folders, the vertical centerline of the herringbone board and the vertical centerline of the air ring are collinear; The spiral grooves at both ends are distributed symmetrically along the center line of the guide roller.

However, in the existing film blowing machines, heaters are sheathed on the outer surface of the barrel to melt the plastic in the barrel, but this melting method has the problem of uneven temperature.

Utility model content

In order to solve the problem of non-uniform heating temperature of the existing film blowing machine, the utility model provides a film blowing machine for plastic packaging materials, which can improve the temperature uniformity of molten plastic in the barrel, thereby improving the effect of blow molding.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A film blowing machine for plastic packaging materials, comprising an extruder and a die head, the extruder includes a barrel and a drive motor, the drive motor and the die head are respectively connected to two ends of the barrel, the machine A rotating shaft driven by a driving motor is arranged inside the barrel, and a feeding hopper for placing plastic is connected to the barrel, and the barrel is covered with a heating device. It is characterized in that the rotating shaft includes an inner barrel and an outer barrel. The outer cylinder is set outside the inner cylinder and forms a vacuum steam chamber, the inner wall of the steam chamber is adsorbed with a liquid-absorbing core, the steam chamber is filled with working liquid, and one end of the inner cylinder is provided with The ring gear intermeshed with the driving wheel connected to the drive motor, the other end of the inner cylinder is installed on the machine barrel through the bearing; the cavity of the inner cylinder between the ring gear and the bearing is installed with an electric heating wire , the inner cylinder is communicated with an insulating tube, and the insulating tube passes through the steam chamber and the outer cylinder sequentially from bottom to top, the outer wall of the outer cylinder is sleeved with a sliding ring that can rotate on the outer cylinder, and the electric heating wire The sliding ring is connected to the sliding ring through the wire, and the sliding ring is connected to the external power supply through the wire; the outer wall of the outer cylinder is also provided with a spiral guide plate.

Both ends of the electric heating wire are provided with sealing rings.

The outer wall of the outer cylinder is provided with an annular sliding ring that cooperates with the sliding ring, the annular sliding ring is fixedly connected to the outer wall of the outer cylinder, and the insulating tube is fixedly connected with the annular sliding ring.

A plurality of arc-shaped brushes are arranged between the sliding ring and the annular sliding ring.

The brushes are evenly connected to the annular slip ring.

The inner cylinder and the outer cylinder are made of 3Cr2W8V steel, and the working liquid is water.

The liquid-absorbing core is a copper rolled wire mesh liquid-absorbing core.

Compared with the prior art, the utility model has the following beneficial effects:

The film blowing machine for plastic packaging materials of the utility model improves the structure of the rotating shaft so that the rotating shaft can heat the material during the process of pushing the material, thereby heating the material through two heating methods inside and outside, thereby ensuring the heating of the material. Uniformity, thereby improving the quality of subsequent blown films.

At the same time, the rotating shaft of the utility model has the characteristics of high heating efficiency and uniform heat transfer, which further ensures the consistency of temperature.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic cross-sectional view of the rotating shaft of the utility model (wherein the spiral guide vane connected to the outer wall of the outer cylinder is not drawn);

Marks in the figure: 1. Barrel, 2. Rotating shaft, 3. Spiral deflector, 4. Driving motor, 5. Feeding hopper, 6. Die head, 7. Heating device, 8. Ring slip ring, 9. Slide Circle, 10, inner cylinder, 11, outer cylinder, 12, steam chamber, 13, liquid-absorbing core, 14, electric heating wire, 15, insulating tube, 16, ring gear, 17, sealing ring, 18, electric brush.

detailed description

The utility model will be further described below in conjunction with the embodiments, and the described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the present utility model, other used embodiments obtained by persons of ordinary skill in the art without making creative efforts all belong to the protection scope of the present utility model.

In conjunction with the accompanying drawings, the film blowing machine for plastic packaging materials of the present invention includes an extruder and a die head 6, the extruder includes a barrel 1 and a drive motor 4, and the drive motor 4 and the die head 6 are respectively Connected to both ends of the barrel 1, the barrel 1 is provided with a rotating shaft 2 driven by a drive motor 4, and the barrel 1 is also connected with a feed hopper 5 for placing plastics. The barrel 1 Covered with a heating device 9 (the heating device belongs to the prior art product, those skilled in the art will understand and understand it, and will not repeat it here); the rotating shaft 2 includes an inner cylinder 10 and an outer cylinder 11, and the outer cylinder 11 is set outside the inner cylinder 10 and forms a vacuum steam chamber 12, a liquid-absorbing core 13 is adsorbed on the inner wall of the steam chamber 12, the steam chamber 12 is filled with working liquid, and one end of the inner cylinder 10 is provided There is a ring gear 16 intermeshed with the driving wheel connected to the driving motor 4, and the other end of the inner tube 10 is installed on the machine barrel 1 through a bearing; the inner tube 10 between the ring gear 16 and the bearing An electric heating wire 14 is installed in the cavity, and the inner cylinder 10 is connected with an insulating tube 15, and the insulating tube 15 passes through the steam chamber 12 and the outer cylinder 11 sequentially from bottom to top, and the outer wall of the outer cylinder 11 is sleeved with The sliding ring 9 that can rotate on the outer cylinder 11, the electric heating wire is electrically connected to the sliding ring through a wire, and the sliding ring 9 is communicated with an external power supply through a wire; the outer wall of the outer cylinder 11 is also provided with a spiral guide Tape-out 3. The film blowing machine for plastic packaging materials of the utility model improves the structure of the rotating shaft so that the rotating shaft can heat the material during the process of pushing the material, thereby heating the material through two heating methods inside and outside, thereby ensuring the heating of the material. Uniformity, thereby improving the quality of subsequent film blowing; at the same time, the rotating shaft of the utility model has the characteristics of high heating efficiency and uniform heat transfer, which further ensures the consistency of temperature.

In the process of use, the electric heating wire is energized and heated to transfer heat to the liquid-absorbing core. After the working liquid is heated, it performs gas-liquid conversion between the upper and lower liquid-absorbing cores, thereby realizing heat transfer, which has the characteristics of high heat transfer efficiency; at the same time The utility model has the characteristics of uniform heat transfer in the axial direction, thereby ensuring the consistency of temperature at each position.

As a preferred mode of the present invention, both ends of the electric heating wire 14 are provided with sealing rings 17, which are used to seal the electric heating wire to ensure normal use of the electric heating wire.

The outer wall of the outer cylinder 11 of the utility model is provided with an annular sliding ring 8 that cooperates with the sliding ring 9. The annular sliding ring 8 is fixedly connected on the outer wall of the outer cylinder 11, and the insulating tube 15 is fixed to the annular sliding ring 8. connect. Through the cooperation of the annular slip ring 8 and the slip ring 9, it can be ensured that the wire will not be entangled during the rotation; at the same time, the fixed connection of the annular slip ring 8 makes the annular slip ring and the insulating tube 15 form a sealed space, Prevent molten plastic from entering the inner cavity of the inner cylinder and ensure the normal use of the electric heating wire.

As a preferred mode of the present utility model, the annular sliding ring 8 and the sliding ring 9 are arranged between the driving motor 4 and the feeding hopper, so that the annular sliding ring and the sliding ring form a closed circle to prevent molten plastic from entering the driving motor The connection with the inner cylinder improves the sealing performance of the utility model.

The inner wall of the outer cylinder 11 of the present invention is also provided with a retaining ring (not shown in the drawings) for limiting the sliding ring 9, thereby ensuring the positioning and limiting of the sliding ring.

In order to improve the electrical contact performance between the sliding ring 9 and the annular sliding ring 8, a plurality of arc-shaped brushes 18 are arranged between the sliding ring and the annular sliding ring; the brushes 18 are uniformly connected to the annular sliding ring 8; At the same time, the brushes are obliquely arranged on the annular slip ring 8 , and a spiral brush ring is formed on the periphery of the annular slip ring 8 .

As a preferred mode of the present invention, the inner cylinder 10 and the outer cylinder 11 are made of 3Cr2W8V steel, the working fluid is water; the liquid-absorbing core 13 is a copper rolled wire mesh liquid-absorbing core.

Embodiment one

The blown film machine that the plastic packaging material of this embodiment is used comprises extruder and die head, and described extruder comprises machine barrel and drive motor, and described drive motor and die head are respectively connected at the two ends of machine barrel, so A rotating shaft driven by a drive motor is arranged inside the barrel, and a feeding hopper for placing plastic is connected to the barrel, the barrel is covered with a heating device, and the rotating shaft includes an inner cylinder and an outer cylinder. The outer cylinder is set outside the inner cylinder to form a vacuum steam chamber. A liquid-absorbing core is adsorbed on the inner wall of the steam chamber. The steam chamber is filled with working liquid. One end of the inner cylinder is provided with a connection The ring gear on the driving motor is meshed with each other, and the other end of the inner cylinder is installed on the machine barrel through the bearing; the cavity of the inner cylinder between the ring gear and the bearing is equipped with an electric heating wire, so The inner cylinder is connected with an insulating tube, and the insulating tube passes through the steam chamber and the outer cylinder in turn from bottom to top. The outer wall of the outer cylinder is provided with a sliding ring that can rotate on the outer cylinder, and the electric heating wire passes through the wire It is connected with the sliding ring, and the sliding ring communicates with the external power supply through the wire; the outer wall of the outer cylinder is also provided with a spiral guide plate.

Embodiment two

The blown film machine that the plastic packaging material of this embodiment is used comprises extruder and die head, and described extruder comprises machine barrel and drive motor, and described drive motor and die head are respectively connected at the two ends of machine barrel, so A rotating shaft driven by a drive motor is arranged inside the barrel, and a feeding hopper for placing plastic is connected to the barrel, the barrel is covered with a heating device, and the rotating shaft includes an inner cylinder and an outer cylinder. The outer cylinder is set outside the inner cylinder to form a vacuum steam chamber. A liquid-absorbing core is adsorbed on the inner wall of the steam chamber. The steam chamber is filled with working liquid. One end of the inner cylinder is provided with a connection The ring gear on the driving motor is meshed with each other, and the other end of the inner cylinder is installed on the machine barrel through the bearing; the cavity of the inner cylinder between the ring gear and the bearing is equipped with an electric heating wire, so The inner cylinder is connected with an insulating tube, and the insulating tube passes through the steam chamber and the outer cylinder in turn from bottom to top. The outer wall of the outer cylinder is provided with a sliding ring that can rotate on the outer cylinder, and the electric heating wire passes through the wire It is connected with the sliding ring, and the sliding ring communicates with the external power supply through the wire; the outer wall of the outer cylinder is also provided with a spiral deflector; the two ends of the electric heating wire are provided with sealing rings.

Embodiment three

The blown film machine that the plastic packaging material of this embodiment is used comprises extruder and die head, and described extruder comprises machine barrel and drive motor, and described drive motor and die head are respectively connected at the two ends of machine barrel, so A rotating shaft driven by a drive motor is arranged inside the barrel, and a feeding hopper for placing plastic is connected to the barrel, the barrel is covered with a heating device, and the rotating shaft includes an inner cylinder and an outer cylinder. The outer cylinder is set outside the inner cylinder to form a vacuum steam chamber. A liquid-absorbing core is adsorbed on the inner wall of the steam chamber. The steam chamber is filled with working liquid. One end of the inner cylinder is provided with a connection The ring gear on the driving motor is meshed with each other, and the other end of the inner cylinder is installed on the machine barrel through the bearing; the cavity of the inner cylinder between the ring gear and the bearing is equipped with an electric heating wire, so The inner cylinder is connected with an insulating tube, and the insulating tube passes through the steam chamber and the outer cylinder in turn from bottom to top. The outer wall of the outer cylinder is provided with a sliding ring that can rotate on the outer cylinder, and the electric heating wire passes through the wire Connected with the sliding ring, the sliding ring communicates with the external power supply through the wire; the outer wall of the outer cylinder is also provided with a spiral deflector; the two ends of the electric heating wire are provided with sealing rings; the outer cylinder An annular sliding ring cooperating with the sliding ring is provided on the outer wall of the outer cylinder, the annular sliding ring is fixedly connected to the outer wall of the outer cylinder, and the insulating tube is fixedly connected to the annular sliding ring.

Embodiment Four

Based on the third embodiment, a plurality of arc-shaped brushes are arranged between the sliding ring and the annular sliding ring.

Embodiment five

Based on the fourth embodiment, the brushes are evenly connected to the annular slip ring.

Embodiment six

On the basis of any of the above embodiments, the inner cylinder and the outer cylinder are made of 3Cr2W8V steel, and the working fluid is water.

Embodiment seven

On the basis of Embodiment 6, the liquid-absorbing core is copper rolled wire mesh liquid-absorbing core.

Claims (7)

1. the inflation film manufacturing machine of a plastic package material, including extruder and die head, described extruder includes machine barrel and drives motor, described driving motor and die head are connected to the two ends of machine barrel, it is provided with by the rotating shaft driving driven by motor to rotate in described machine barrel, the feed hopper for placing plastics it is also associated with on described machine barrel, described machine barrel is coated with heater, it is characterized in that, described rotating shaft includes inner core and urceolus, described urceolus is sheathed outer tube and form the vapor chamber of vacuum, it is adsorbed with wick on the inwall of described vapor chamber, it is filled with hydraulic fluid in described vapor chamber, one end of described inner core is provided with and is connected to drive the intermeshing gear ring of drivewheel on motor, the other end of described inner core is arranged on machine barrel through bearing；In the cavity of described inner core between gear ring and bearing, electrical heating wire is installed, described inner core is communicated with insulation tube, described insulation tube pipe the most successively crosses vapor chamber and urceolus, the sliding ring that can rotate on urceolus it is arranged with on the outer wall of described urceolus, described electrical heating wire is connected with sliding ring through wire, and described sliding ring connects with outside power supply through wire；It is additionally provided with spiral flow deflector on the outer wall of described urceolus.

The inflation film manufacturing machine of plastic package material the most according to claim 1, it is characterised in that the two ends of described electrical heating wire are provided with sealing ring.

The inflation film manufacturing machine of plastic package material the most according to claim 1, it is characterized in that, the outer wall of described urceolus is provided with the annular slipping ring cooperated with sliding ring, and described annular slipping ring is fixedly connected on the outer wall of urceolus, and described insulation tube is fixing with annular slipping ring to be connected.

The inflation film manufacturing machine of plastic package material the most according to claim 1, it is characterised in that be provided with multiple brush in arcuation between described sliding ring and annular slipping ring.

The inflation film manufacturing machine of plastic package material the most according to claim 4, it is characterised in that described brush connects on annular slipping ring uniformly.

6. according to the inflation film manufacturing machine of the arbitrary described plastic package material of claim 1-5, it is characterised in that described inner core and urceolus are made up of 3Cr2W8V steel, and described hydraulic fluid is water.

The inflation film manufacturing machine of plastic package material the most according to claim 6, it is characterised in that described wick is copper to roll silk screen wick.