CN214493745U

CN214493745U - Film-coated barrel

Info

Publication number: CN214493745U
Application number: CN202120206759.0U
Authority: CN
Inventors: 贝国平
Original assignee: Individual
Current assignee: Suzhou Best Packaging Technology Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-10-26
Anticipated expiration: 2031-01-25

Abstract

The utility model relates to a film-coating barrel, which comprises a barrel body formed by winding and welding metal plates, end covers used for sealing two ends of the barrel body, film-coating layers attached to the inner and outer surfaces of the barrel body and the end covers, and film-supplementing layers attached to the inner and outer surfaces of the welding position of the barrel body; the barrel body is of a hollow cylindrical structure with openings at two ends, and a welding line is arranged on the side wall of the barrel body along the direction parallel to the central axis; the end covers are respectively covered at two ends of the barrel body in an open shape; the utility model adopts the mode of coating a film on the inner surface and the outer surface of the barrel body to realize the surface treatment of the barrel body, and solves the problems that the environmental pollution generated by spraying seriously exceeds the standard and the investment cost is overlarge; because the barrel body is provided with the welding line in the film covering process, the surface film covering treatment at the welding line is realized by a film supplementing mode, and the using effect and the service life of the barrel body are effectively ensured.

Description

Film-coated barrel

Technical Field

The utility model relates to a staving tectorial membrane technical field, in particular to tectorial membrane bucket.

Background

In the metal barrel industry, a barrel body is generally made of a thin steel plate, in order to ensure that the surface of the steel plate is not corroded, spraying is usually carried out on the inner surface and the outer surface of the barrel body, and the steel barrel needs to be cleaned, phosphorized, dried and the like before spraying; about 142g of paint is sprayed on each steel barrel according to the amount of 1Kg of paint sprayed on 7 steel barrels, wherein about 20% of the paint is coated with epoxy phenolic aldehyde inside, and 60% of epoxy phenolic aldehyde volatilizes in the heating and baking process, so that the environment is seriously affected, and the emission is seriously overproof; meanwhile, the paint spraying cost is too high, and generally comprises paint cost, electric cost, natural gas cost and the like; therefore, in order to solve the problems of environmental protection and production cost, a film-coated barrel is continuously available on the market, and the surface treatment is carried out by attaching a film on the inner surface and the outer surface of a steel barrel, but the treatment method causes new problems: the steel drum forms through the steel sheet rolling, need carry out the pad pasting before the rolling, and the firm back steel sheet of pad pasting is rolled into cylindricality structure, and both ends need welded fastening, and welded position department tectorial membrane effect is poor this moment, seriously influences the result of use and the life of steel drum, consequently the utility model develops a tectorial membrane bucket to solve the problem that exists among the prior art, through the retrieval, not discover with the utility model discloses same or similar technical scheme.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is: the utility model provides a tectorial membrane bucket to solve among the prior art that the staving that adopts the tectorial membrane technique to prepare is poor and life hangs down at welding position department tectorial membrane effect.

The technical scheme of the utility model is that: a film-coated barrel comprises a barrel body formed by winding and welding metal plates, end covers used for sealing two ends of the barrel body, film-coated layers attached to the inner surface and the outer surface of the barrel body and the end covers, and film-supplementing layers attached to the inner surface and the outer surface of the welding position of the barrel body; the barrel body is of a hollow cylindrical structure with openings at two ends, and a welding line is arranged on the side wall of the barrel body along the direction parallel to the central axis; the end covers are respectively covered at two ends of the barrel body which are in an open shape.

Preferably, the inner and outer surfaces of the two sides of the welding seam are milled to form film supplement surfaces, the film supplement layers are attached to the regions of the inner and outer surfaces of the barrel body except the film supplement surfaces, the film supplement layers are attached to the film supplement surfaces, and two ends of the film supplement layers arranged along the circumferential direction of the barrel body extend to the upper ends of the film supplement layers.

Preferably, the film coating layer and the film repairing layer are respectively made of one of a combination of a PET film and an EVA film, a PET film, a PE film or a PP film; in the combination of the PET film and the EVA adhesive film, the EVA adhesive film is adhered to the inner surface and the outer surface of the barrel body and the end cover and is fixed by heating and melting; the PET film, the PE film or the PP film is directly adhered to the inner surface and the outer surface of the barrel body and the end cover and is fixed by heating and self-melting.

Preferably, the PET film is formed by compounding three layers, the PET film has a transverse stretching direction and a longitudinal stretching direction, the transverse stretching direction and the longitudinal stretching direction of the two PET films at the outer end are arranged in the same direction, and the transverse stretching direction and the longitudinal stretching direction of the PET film at the middle layer are respectively perpendicular to the transverse stretching direction and the longitudinal stretching direction of the two PET films at the outer end.

Preferably, the end part of the end cover along the circumferential direction is fixedly connected with the end part of the barrel body at the same side through synchronous outward curling; and a material port is formed in the end face of the end cover on one side.

Compared with the prior art, the utility model has the advantages that:

(1) the utility model adopts the mode of coating a film on the inner surface and the outer surface of the barrel body to realize the surface treatment of the barrel body, and solves the problems that the environmental pollution generated by spraying seriously exceeds the standard and the investment cost is overlarge; because the barrel body is provided with the welding line in the film covering process, the surface film covering treatment at the welding line is realized by a film supplementing mode, and the using effect and the service life of the barrel body are effectively ensured.

(2) Before welding the barrel body, the end needs to be milled or edged, so that welding and fixing are facilitated, and after welding is completed, the welding position needs to be flattened, so that film supplementing operation is facilitated; when mend the rete simultaneously and attached, all extend to tectorial membrane layer upper end along the both ends of staving circumference setting, effectively guarantee staving tectorial membrane effect.

(3) The materials of the film coating layer and the film supplementing layer can be selected in various ways, the combination of a double-layer PET film and an EVA film can be adopted, and fixation is realized by melting the EVA film at a high temperature during attaching; meanwhile, a PET film, a PE film or a PP film arranged in a single layer can be adopted, and fixation is realized in a self-melting mode.

(4) The PET film is formed by compounding three layers, and the transverse stretching direction and the longitudinal stretching direction of the PET film are sequentially distributed in a staggered manner, so that the performance of the PET film is effectively improved, and the reliability of the film coating on the surface of the barrel body is further realized.

Drawings

The invention will be further described with reference to the following drawings and examples:

fig. 1 is an exploded view of a film-covered barrel according to the present invention;

FIG. 2 is a cross-sectional view of the barrel of the present invention;

FIG. 3 is an enlarged view of the section of the film repairing layer of the present invention;

fig. 4 is a sectional view of the end cover fixed with the barrel body curling edge.

Wherein: 1. 2, welding seams, 3, a film coating layer, 4, a film supplement layer, 5, end covers, 6, a material port, 7 and a film supplement surface.

Detailed Description

The following detailed description is made in conjunction with specific embodiments of the present invention:

as shown in fig. 1-3, a film-coated barrel comprises a barrel body 1 formed by winding and welding metal plates, end covers 5 for sealing two ends of the barrel body 1, a film-coated layer 3 attached to the inner and outer surfaces of the barrel body 1 and the end covers 5, and a film-supplementing layer 4 attached to the inner and outer surfaces of the welding position of the barrel body 1.

The barrel body 1 is of a hollow cylindrical structure with openings at two ends, and a welding line 2 is arranged on the side wall along the direction parallel to the central axis; the inner surface and the outer surface of the two sides of the welding seam 2 are milled to form a film supplement surface 7, the film coating layer 3 is attached to the region of the inner surface and the outer surface of the barrel body except the film supplement surface 7, the film supplement layer 4 is attached to the film supplement surface 7, and two ends arranged along the circumferential direction of the barrel body 1 extend to the upper end of the film coating layer 3.

The film coating layer 3 and the film supplementing layer 4 are respectively one of a combination of a PET film and an EVA film, a PET film, a PE film or a PP film; in the combination of the PET film and the EVA adhesive film, the EVA adhesive film is adhered to the inner surface and the outer surface of the barrel body 1 and the end cover 5 and is fixed by heating and melting; the PET film, the PE film or the PP film is directly adhered to the inner surface and the outer surface of the barrel body and the end cover and is fixed by heating and self-melting; as a further optimization of this embodiment, the PET film is formed by laminating three layers, the PET film has a transverse stretching direction and a longitudinal stretching direction, the transverse stretching direction and the longitudinal stretching direction of the two PET films at the outer end are both arranged in the same direction, and the transverse stretching direction and the longitudinal stretching direction of the PET film at the middle layer are respectively perpendicular to the transverse stretching direction and the longitudinal stretching direction of the two PET films at the outer end.

As shown in fig. 4, the end caps 5 are respectively covered at two open ends of the barrel body 1, the end portions of the end caps 5 along the circumferential direction and the end portions of the barrel body 1 at the same side are fixedly connected by synchronously curling towards the outside, and a material port 6 is arranged on the end face of the end cap 5 at one side.

About the utility model relates to a tectorial membrane bucket, its preparation method specifically as follows:

(1) preparing a metal plate and pasting a film: attaching film coating layers to the end faces of the front side and the back side of a flat metal plate; the film coating layer can be one of a combination of a PET film and an EVA film, a PET film, a PE film or a PP film; the combined fixing method of the PET film and the EVA adhesive film comprises the following steps: heating the EVA adhesive film to 170-190 ℃ to melt the EVA adhesive film and fixing the EVA adhesive film on a metal plate; the fixing method of the PET film, the PE film or the PP film comprises the following steps: self-melting fixation is realized by heating to the corresponding melting point temperature, and rolling and attaching are carried out through a rubber wheel; the PET film has a melting point of 225-260 ℃, the PE film has a melting point of 120-136 ℃, and the PP film has a melting point of 150-176 ℃;

(2) cutting the metal plate and milling or edging: cutting a metal plate with corresponding length and size and a pair of end covers with corresponding diameter and size according to the inner diameter of the film-coated barrel to be manufactured, and simultaneously respectively milling or edging two side ends of the front end surface and the back end surface of the metal plate to damage a film-coated layer attached to the end parts, thereby facilitating subsequent welding; the width of a single-side milled edge of the metal plate is 5-20 mm, and the inner surface and the outer surface are milled to be 0.02 mm;

(3) welding a metal plate: rolling the metal plate into a cylindrical structure, and attaching and welding the end parts of which the edges are milled at the two sides to form a barrel body; during welding, the two end parts of the metal plate can adopt one of common vertical lap welding or laser welding, and after the common vertical lap welding is finished, the position of a welding line needs to be flattened by a flattening machine;

(4) film supplement at the welding seam: electromagnetic heating is carried out on the position of a welding seam of the barrel body, a film supplementing layer is attached to the position, the width of the film supplementing layer in the direction perpendicular to the direction of the welding seam is 20-50 mm, and then a rubber wheel is adopted to roll the film supplementing layer; the film supplementing layer can also be a combination of a PET film and an EVA adhesive film, or one of a PET film, a PE film or a PP film, and the attaching method is the same as that in the step (1);

(5) fixing an end cover: the end cover is aligned with the end part of the barrel body in an opening shape, and the end cover is curled outwards synchronously, so that the end cover and the barrel body are fixed, and then the two end parts of the barrel body are sealed.

The utility model treats the inner and outer surfaces of the barrel body by a film covering method, the end part needs to be milled or edged before the welding of the barrel body, so that the welding is convenient to weld and fix, and the welding position needs to be flattened after the welding is finished, so that the film supplementing operation is convenient; when the film repairing layer is attached, two ends arranged along the circumferential direction of the barrel body extend to the upper end of the film coating layer, so that the film coating effect of the barrel body is effectively ensured; the method solves the problems of serious standard exceeding of environmental pollution generated by spraying and overlarge investment cost, and effectively ensures the use effect and the service life of the barrel body.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. It is obvious to a person skilled in the art that the invention is not limited to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention, and that the embodiments are therefore to be considered in all respects as exemplary and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A tectorial membrane bucket which characterized in that: the device comprises a barrel body formed by winding and welding metal plates, end covers used for sealing two ends of the barrel body, a film coating layer attached to the inner surface and the outer surface of the barrel body and the end covers, and a film supplementing layer attached to the inner surface and the outer surface of the welding position of the barrel body; the barrel body is of a hollow cylindrical structure with openings at two ends, and a welding line is arranged on the side wall of the barrel body along the direction parallel to the central axis; the end covers are respectively covered at two ends of the barrel body which are in an open shape.

2. The laminating barrel of claim 1, wherein: the inner surface and the outer surface of the two sides of the welding line are milled to form film supplement surfaces, the film coating layers are attached to the regions of the inner surface and the outer surface of the barrel body except the film supplement surfaces, the film supplement layers are attached to the film supplement surfaces, and two ends arranged along the circumferential direction of the barrel body extend to the upper ends of the film coating layers.

3. The laminating barrel of claim 1, wherein: the film coating layer is made of one of a combination of a PET film and an EVA film, a PET film, a PE film or a PP film; the film supplementing layer is a combination of a PET film and an EVA adhesive film, or one of a PET film, a PE film or a PP film; in the combination of the PET film and the EVA adhesive film, the EVA adhesive film is adhered to the inner surface and the outer surface of the barrel body and the end cover and is fixed by heating and melting; the PET film, the PE film or the PP film is directly adhered to the inner surface and the outer surface of the barrel body and the end cover and is fixed by heating and self-melting.

4. The laminating barrel of claim 3, wherein: the PET film is formed by compounding three layers of structures, the PET film has a transverse stretching direction and a longitudinal stretching direction, the transverse stretching direction and the longitudinal stretching direction of the two layers of PET films at the outer end part are arranged in the same direction, and the transverse stretching direction and the longitudinal stretching direction of the PET film at the middle layer are respectively perpendicular to the transverse stretching direction and the longitudinal stretching direction of the two layers of PET films at the outer end part.

5. The laminating barrel of claim 1, wherein: the end part of the end cover along the circumferential direction is fixedly connected with the end part of the barrel body at the same side through synchronous outward curling; and a material port is formed in the end face of the end cover on one side.