Ferromagnetic impurity removing device of film blowing machine

Abstract

The ferromagnetic impurity removing device comprises a shell, the film blowing machine, a storage hopper, a feeding hopper, an elevator and an impurity removing mechanism, the film blowing machine is arranged in the shell, the storage hopper is arranged at the position, close to the bottom, of one side of the shell, the feeding hopper is arranged at the top of the shell, and the elevator is arranged on the side, close to the bottom, of the shell. The elevator is arranged on one side of the shell and located above the storage hopper, the impurity removing mechanism is arranged in the shell and located above the film blowing machine, a feeding port of the feeding hopper is close to one side of the upper end of the elevator, a discharging port of the feeding hopper is connected with the impurity removing mechanism, and the bottom of the impurity removing mechanism is connected with the film blowing machine through a discharging valve. According to the ferromagnetic impurity removing device of the film blowing machine, plastic particles are lifted into the impurity removing mechanism through the lifting machine, ferromagnetic impurities in the plastic particles are adsorbed and removed through the impurity removing mechanism and then supplied to the film blowing machine for use, the content of the ferromagnetic impurities in the plastic particles is reduced as much as possible, and therefore the quality of film products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of film blowing machines, in particular to a ferromagnetic impurity removing device for a film blowing machine. Background Art

[0002] The film blowing machine is a device that heats and melts plastic particles and then blows them to the required thickness through a high-pressure air pipe, forming a film after cooling and shaping. During the production process of plastic particles, due to the collision and friction between the plastic particles and the inner wall of the production equipment, some ferromagnetic metal impurities will inevitably be carried and mixed. These impurities will cause defects such as crystal points and shark skin on the film surface, affecting the transparency and aesthetics of the film, so these impurities need to be removed. Utility Model Content

[0003] The utility model aims to provide a ferromagnetic impurity removal device for a film blowing machine, so as to remove ferromagnetic impurities in plastic particles, thereby solving the problem of poor transparency and aesthetics of the film.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A device for removing ferromagnetic impurities of a film blowing machine comprises a shell, a film blowing machine, a storage hopper, an upper hopper, an elevator and an impurity removal mechanism, wherein the film blowing machine is arranged inside the shell, the storage hopper is arranged on one side of the shell near the bottom, the upper hopper is arranged on the top of the shell, the elevator is arranged on one side of the shell and located above the storage hopper, the impurity removal mechanism is arranged inside the shell and located above the film blowing machine, the feed port of the upper hopper is close to the upper end side of the elevator, the discharge port of the upper hopper is connected to the impurity removal mechanism, and the bottom of the impurity removal mechanism is connected to the film blowing machine through a discharge valve.

[0006] Furthermore, the impurity removal mechanism includes an impurity removal box, a stirring shaft, magnetic blades and a stirring motor. The stirring shaft is longitudinally arranged in the impurity removal box, the stirring motor is arranged on the top of the impurity removal box and is transmission-connected to the stirring shaft, and the magnetic blades are arranged at intervals around the stirring shaft.

[0007] Furthermore, the position where the top of the shell body is connected to the impurity removal box is an open structure, a cover plate is provided in the opening structure, and the stirring motor is arranged on the outside of the cover plate and is drivingly connected to the stirring shaft passing through the cover plate.

[0008] Furthermore, a dust removal fan is provided on one side of the impurity removal box, one end of the dust removal fan is connected to the inside of the impurity removal box through an air intake pipe, and the other end is connected to the outside of the shell through an exhaust pipe.

[0009] Furthermore, a filter screen is provided at the connection between the air intake pipe and the impurity removal box.

[0010] Furthermore, a film outlet is provided on one side of the shell.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The ferromagnetic impurity removal device of the film blowing machine lifts the plastic particles into the impurity removal mechanism through a hoist, and the ferromagnetic impurities in the plastic particles are adsorbed and removed by the impurity removal mechanism, and then supplied to the film blowing machine for use, so as to minimize the content of ferromagnetic impurities in the plastic particles, thereby improving the quality of film products. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] In the figure: 1-shell, 2-film blowing machine, 3-storage hopper, 4-upper hopper, 5-elevator, 6-discharge valve, 7-de-impurity box, 8-stirring shaft, 9-magnetic blades, 10-stirring motor, 11-cover plate, 12-dust removal fan, 13-intake pipe, 14-exhaust pipe, 15-filter, 16-film outlet. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] like Figure 1 As shown, the ferromagnetic impurity removal device of the film blowing machine in this embodiment includes a shell 1, a film blowing machine 2, a storage hopper 3, an upper hopper 4, an elevator 5 and an impurity removal mechanism. The film blowing machine 2 is arranged inside the shell 1, the storage hopper 3 is arranged at a position near the bottom of one side of the shell 1, the upper hopper 4 is arranged at the top of the shell 1, and the feed port of the upper hopper 4 is close to the upper end of the elevator 5; the elevator 5 is arranged on one side of the shell 1 and is located above the storage hopper 3. The elevator 5 can adopt a bucket elevator commonly used in the art. The elevator 5 lifts the plastic particles in the storage hopper 3 to one side of the upper hopper 4, and as the hopper is turned over, the plastic particles are dumped into the upper hopper 4.

[0017] The impurity removal mechanism is arranged inside the shell 1 and above the film blowing machine 2. The discharge port of the upper hopper 4 is connected to the impurity removal mechanism. The bottom of the impurity removal mechanism is connected to the film blowing machine 2 through a discharge valve 6. After the impurity removal is completed, the plastic particles are transported to the film blowing machine 2 through the discharge valve 6.

[0018] The impurity removal mechanism includes an impurity removal box 7, a stirring shaft 8, a magnetic blade 9 and a stirring motor 10. The stirring shaft 8 is arranged in the impurity removal box 7 along the longitudinal direction. The position where the top of the shell 1 is connected to the impurity removal box 7 is an open structure. A cover plate 11 is provided in the opening structure. The stirring motor 10 is arranged on the outside of the cover plate 11 and is transmission-connected to the stirring shaft 8 passing through the cover plate 11.

[0019] The magnetic blades 9 are arranged at intervals around the stirring shaft 8. The magnetic blades 9 can be made of magnets, or a layer of magnets can be coated on the outside of ordinary stirring blades. During the stirring process, ferromagnetic impurities in the plastic particles will be adsorbed on the magnetic blades 9, thereby removing the ferromagnetic impurities therein, which is beneficial to improving the subsequent film blowing quality.

[0020] When the adsorption amount of the magnetic blade 9 approaches saturation, the cover 11 can be opened, the stirring shaft 8, the magnetic blade 9 and the stirring motor 10 can be taken out as a whole, and the impurities on the magnetic blade 9 can be disposed of and then put back into the impurity removal box 7.

[0021] A dust removal fan 12 is also provided on one side of the impurity removal box 7. One end of the dust removal fan 12 is connected to the inside of the impurity removal box 7 through an air intake pipe 13, and the other end is connected to the outside of the housing 1 through an exhaust pipe 14. A filter 15 is also provided at the connection between the air intake pipe 13 and the impurity removal box 7. During the mixing process, a certain amount of dust will be generated, and the dust removal fan 12 can absorb the dust. The other end of the exhaust pipe 14 can be connected to a dust removal device to purify the dust; the aperture of the filter 15 is smaller than the particle size of the plastic particles, and can only accommodate dust to pass through, preventing the plastic particles from being sucked out.

[0022] A film outlet 16 is provided on one side of the housing 1, and the film product after the film blowing of the film blowing machine 2 is discharged from the film outlet 16; wherein, the film blowing machine 2 adopts the existing technology in the field, and its structure and working principle are well known to those skilled in the art, and will not be repeated here. Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A device for removing ferromagnetic impurities of a film blowing machine, characterized in that: The invention comprises a shell, a film blowing machine, a storage hopper, an upper hopper, an elevator and a debris removal mechanism, wherein the film blowing machine is arranged inside the shell, the storage hopper is arranged on one side of the shell near the bottom, the upper hopper is arranged on the top of the shell, the elevator is arranged on one side of the shell and located above the storage hopper, the debris removal mechanism is arranged inside the shell and located above the film blowing machine, the feed port of the upper hopper is close to the upper end side of the elevator, the discharge port of the upper hopper is connected to the debris removal mechanism, and the bottom of the debris removal mechanism is connected to the film blowing machine through a discharge valve.

2. The ferromagnetic impurity removal device for a film blowing machine according to claim 1, characterized in that: The impurity removal mechanism comprises an impurity removal box, a stirring shaft, magnetic blades and a stirring motor. The stirring shaft is longitudinally arranged in the impurity removal box, the stirring motor is arranged on the top of the impurity removal box and is transmission-connected to the stirring shaft, and the magnetic blades are arranged at intervals around the stirring shaft.

3. The ferromagnetic impurity removal device for the film blowing machine according to claim 2, characterized in that: The position where the top of the shell body is connected to the impurity removal box is an open structure, a cover plate is arranged in the opening structure, and the stirring motor is arranged on the outside of the cover plate and is drivingly connected to the stirring shaft passing through the cover plate.

4. The ferromagnetic impurity removal device for a film blowing machine according to claim 2, characterized in that: A dust removal fan is also provided on one side of the impurity removal box. One end of the dust removal fan is connected to the inside of the impurity removal box through an air intake pipe, and the other end is connected to the outside of the shell through an exhaust pipe.

5. The ferromagnetic impurity removal device for a film blowing machine according to claim 4, characterized in that: A filter screen is also provided at the connection between the air intake pipe and the impurity removal box.

6. The ferromagnetic impurity removal device for a film blowing machine according to claim 1, characterized in that: Furthermore, a film outlet is provided on one side of the shell.

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