CN216860371U - Press forming roller for wave-shaped film - Google Patents

Abstract

The utility model discloses a press forming roller for a wavy film, which comprises a cooling roller shaft, wherein a ceramic tube sleeve body is arranged on the outer peripheral surface of the cooling roller shaft, a wavy texture layer is arranged on the outer peripheral surface of the ceramic tube sleeve body, and an anti-sticking layer is arranged on the wavy texture layer. The utility model meets the requirement of pressing and forming the wavy film, adopts the ceramic tube sleeve body to carry out the forming of the wavy texture layer, eliminates the risk of directly processing on the cooling roller shaft, and avoids the scrapping of the cooling roller shaft. The ceramic pipe sleeve body has certain porosity, meets the requirement that the adhesion of the anti-sticking layer is stable and firm, does not need to be sandblasted and opened coarsely, and prolongs the effective service life of the anti-sticking layer. The ceramic tube sleeve body is directly sintered on the cooling roller shaft, so that the ceramic tube sleeve body has very reliable carrying stability, is easy to carry out secondary processing and crushing and dismounting, ensures that the cooling roller shaft can be repeatedly used, and has higher economic value.

Description

Press forming roller for wave-shaped film

Technical Field

The utility model relates to a pressing forming roller for a wavy film, belonging to the technical field of plastic film forming.

Background

The plastic film is a film-shaped finished product made of plastics, including packaging films, agricultural films, preservative films and the like, and the plastics have excellent film-forming property and are widely applied in the field of films.

The present plastic film making process includes blowing, extruding, casting, calendering and other technological steps, and features of different technological steps, including blowing to produce film in different thickness, transverse and longitudinal stretching to produce product with high quality, rolling to form film, mixing, melting and extruding the material, drawing, embroidering, curling, cooling and shearing the extruded material in a drawing machine.

In the prior art, a specific wave-shaped film exists, namely, one side of the film is a plane, the other side of the film is a pressed wave-shaped surface, the wave-shaped surface is a wave form formed by transverse or longitudinal continuous peaks and valleys, the linear directions of the transverse and wave peaks and valleys are axial directions, and the linear directions of the longitudinal and wave peaks and valleys are the running directions of a film strip.

This wave type film shaping need adopt wave texture embossing roll, and traditional wave texture embossing roll adopts the cooling roller axle that possesses the cooling flow channel, goes up wave texture layer machine tooling shaping on the cooling roller axle, and the surface on wave texture layer is opened roughly again, finally carries out the spray forming on antiseized layer. The cooling roller shaft generally belongs to the purchase piece, its inside possesses the cooling runner, when cooling the outside wave texture layer shaping of roller shaft, machining error appears easily, cause the cooling roller shaft to scrap, the cooling roller shaft generally is alloy material in addition, it need open thick mode through the sandblast go on with indisputable adhesion between the layer such as teflon, the sandblast is opened thick operation complicacy, and bonding force fastness between the antiseized layer is not enough, influence the life-span on wave texture layer, when it appears the damage, need carry out secondary operation to the cooling roller shaft, there is the radial loss to the cooling roller shaft, the life of cooling roller shaft is shorter.

Disclosure of Invention

The utility model aims to solve the defects of the prior art, and provides a press forming roller for a wavy film, aiming at the problems of complex process and short effective service life of a secondary wave texture layer of the traditional cooling roller shaft.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

the pressing forming roller for the wavy film comprises a cooling roller shaft, wherein a ceramic tube sleeve body is arranged on the outer peripheral surface of the cooling roller shaft, a wavy texture layer is arranged on the outer peripheral surface of the ceramic tube sleeve body, and an anti-sticking layer is arranged on the wavy texture layer.

Preferably, the ceramic tube sleeve body is formed by sintering on the cooling roller shaft.

Preferably, the ceramic tube sleeve body is detachably arranged on the cooling roller shaft, and the ceramic tube sleeve body and the cooling roller shaft are respectively limited and locked in circumferential and axial directions.

Preferably, the wave-shaped texture layer is formed by milling and grinding the ceramic tube sleeve body.

Preferably, the wave-shaped texture layer is formed by laser engraving on the ceramic pipe sleeve body.

Preferably, the wave-shaped texture layer is formed by pressing before sintering the ceramic tube sleeve body.

Preferably, the two axial ends of the wave-shaped texture layer are respectively provided with a calendering ring stop.

Preferably, a plurality of axial cooling channels which are uniformly distributed in the circumferential direction are arranged in the cooling roller shaft.

Preferably, a spiral cooling flow passage is arranged in the cooling roller shaft.

Preferably, the spiral cooling flow passage is a cast built-in spiral cooling pipe body.

The utility model has the following beneficial effects:

1. satisfy the wave type film press forming demand, adopt the ceramic pipe cover body to carry out the wave type texture layer shaping, eliminated the direct processing risk on the cooling roller axle, stop the cooling roller axle and scrap the condition and take place.

2. The ceramic pipe sleeve body has certain porosity, meets the requirement that the adhesion of the anti-sticking layer is stable and firm, does not need to be sandblasted and opened coarsely, and prolongs the effective service life of the anti-sticking layer.

3. The ceramic tube sleeve body is directly sintered on the cooling roller shaft, so that the ceramic tube sleeve body has very reliable carrying stability, is easy to carry out secondary processing and crushing and dismounting, ensures that the cooling roller shaft can be repeatedly used, and has higher economic value.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

fig. 1 is a schematic view of the structure of a press-forming roll for a wavy film according to the present invention.

Fig. 2 is a schematic structural view of a preferred embodiment of the press-forming roll for the wavy film of the present invention.

Fig. 3 is a schematic view, partially in section, in the axial direction, of a press-forming roll for an undulating film according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the utility model. It should be noted that, for convenience of description, only the relevant portions of the related inventions are shown in the drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The utility model provides a press forming roller for a wavy film, which comprises a cooling roller shaft 1, wherein a ceramic tube sleeve body 2 is arranged on the outer peripheral surface of the cooling roller shaft 1, a wavy texture layer 3 is arranged on the outer peripheral surface of the ceramic tube sleeve body 2, and an anti-sticking layer 4 is arranged on the wavy texture layer 3, as shown in figures 1 to 3.

The wave-shaped film to be formed is provided with a pressed wave-shaped surface on one side and the other side, wherein the wave-shaped surface is a wave form formed by transverse or longitudinal continuous peaks and valleys, the transverse direction is the linear direction of the peaks and valleys of the waves is the axial direction, and the longitudinal direction is the running direction of the film strip.

The wave-shaped texture layer 3 in fig. 1 and 2 is an axial transverse wave shape, the wave-shaped texture layer 3 in fig. 3 is a circumferential longitudinal wave shape, and the shape and structure of the wave-shaped texture layer 3 belong to the prior art.

In the present case, adopt and carry out the design of the ceramic pipe cover body 2 on cooling roller 1, need not to carry out machine-shaping on cooling roller 1, stop cooling roller 1 machine tooling scrapping phenomenon.

In addition, the wavy texture layer 3 of the ceramic tube sleeve body 2 has dense pores, the firm adhesion requirement of the anti-sticking layer 4 is met, coarse operation such as sand blasting is not needed, and the effective service life of the anti-sticking layer 4 is prolonged.

It should be noted that, the general ceramic material has porosity, and the ceramic with smaller porosity has anti-sticking property, but the film pressing needs cooling, and the porosity of the ceramic is closely related to the thermal conductivity thereof, in the present case, the porosity of the adopted ceramic tube sleeve body 2 is at least 45%, which can provide the bonding stability of the anti-sticking layer 4 and the sintering bonding force with the cooling roller shaft 1, and simultaneously meet the cooling conduction requirement, and maintain a certain cooling efficiency of the press forming roller.

In one embodiment, the ceramic bushing body 2 is formed by sintering on the cooling roller shaft 1.

Specifically, the sintering temperature of the ceramic is generally between 700 ℃ and 1300 ℃, and the melting point of the alloy material of the cooling roller shaft 1 is generally more than 2300 ℃, so that the ceramic sintering does not influence the cooling roller shaft 1, and meanwhile, the sintering adhesion bonding force is reliable and stable, and the forming of the press-forming roller is easy to realize.

In one embodiment, the ceramic tube housing 2 is detachably disposed on the cooling roller shaft 1, and the ceramic tube housing 2 and the cooling roller shaft 1 are respectively locked in a limited manner in the circumferential direction and the axial direction.

The ceramic tube sleeve body 2 which can be detachably arranged needs to be circumferentially limited and circumferentially limited between the ceramic tube sleeve body 2 and the cooling roll shaft 1, the ceramic tube sleeve body 2 and the cooling roll shaft 1 can be filled with adhesive at circumferential seams, and the axial limiting rib groove can be matched to realize the circumferential limiting and the axial limiting structure by annular blocking at two sides.

In one particular embodiment, there are three formations for the wave-shaped texture layer 3:

one wave-shaped texture layer 3 is formed by milling and grinding the ceramic tube sleeve body 2.

And the wave-shaped texture layer 3 is formed by laser engraving on the ceramic tube sleeve body 2.

And thirdly, the wave-shaped texture layer 3 is formed by pressing before the ceramic tube sleeve body is sintered.

The requirement that the wave-shaped texture layer 3 is formed on the ceramic tube sleeve body 2 is met, ceramic milling and grinding, ceramic laser etching and pressing forming before sintering belong to the prior art, and the requirement that the wave-shaped texture layer 3 is formed by pressing and copying can be met.

In one embodiment, the corrugated pattern layer 3 is provided with rolling rings 30 at both axial ends thereof.

Specifically, the film is an uncooled planar film before pressing, and is rolled when passing through a gap between the wave-shaped texture layer 3 and the auxiliary planar roller, deviation and edge stress release are easily caused by rolling, and edge film uniformity difference and structural strength difference are caused in the edge stress release process, so that the rolling ring 30 is arranged, and a certain edge side resistance effect can be achieved, certain guiding is achieved, and the edge of the film is uniform and compact.

In one embodiment, as shown in fig. 1, a plurality of axial cooling channels 5 are uniformly distributed in the circumferential direction in the cooling roller shaft 1.

Specifically, the conventional cooling pipe shaft 1 adopts such a structure, and the design of flanges is adopted at the two ends of the cooling roller shaft 1, so that the matching requirement of communicating with the plurality of axial cooling flow channels 5 is met.

In one embodiment, as shown in fig. 2, a spiral cooling flow passage 6 is provided in the cooling roller shaft 1. The spiral cooling runner 6 is a cast built-in spiral cooling pipe body.

Specifically, the requirement of forming the spiral cooling runner 6 in the cooling roller shaft 1 can be met by adopting a mode of casting the built-in spiral cooling pipe body, the cooling efficiency is improved, the film can be effectively solidified after being pressed and formed, and the product forming qualified rate is high.

According to the utility model, the press forming roller for the wavy film meets the press forming requirement of the wavy film, and the ceramic pipe sleeve body is adopted for forming the wavy texture layer, so that the direct processing risk on the cooling roller shaft is eliminated, and the scrapping condition of the cooling roller shaft is avoided. The ceramic pipe sleeve body has certain porosity, meets the requirement that the adhesion of the anti-sticking layer is stable and firm, does not need to be sandblasted and opened coarsely, and prolongs the effective service life of the anti-sticking layer. The ceramic tube sleeve body is directly sintered on the cooling roller shaft, so that the ceramic tube sleeve body has very reliable carrying stability, is easy to carry out secondary processing and crushing and dismounting, ensures that the cooling roller shaft can be repeatedly used, and has higher economic value.

The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the utility model, and the technical scheme after the changes or substitutions can fall into the protection scope of the utility model.

Claims (10)

1. A press-forming roll for undulating film, comprising a cooling roll shaft, characterized in that:

the ceramic pipe sleeve is arranged on the outer peripheral surface of the cooling roller shaft, a wave-shaped texture layer is arranged on the outer peripheral surface of the ceramic pipe sleeve, and an anti-sticking layer is arranged on the wave-shaped texture layer.

2. A press-molding roll for a wave-shaped film according to claim 1, characterized in that:

the ceramic pipe sleeve body is formed by sintering the cooling roll shaft.

3. A press-molding roll for a wave-shaped film according to claim 1, characterized in that:

the ceramic tube sleeve body is detachably arranged on the cooling roll shaft, and the ceramic tube sleeve body and the cooling roll shaft are respectively limited and locked in circumferential and axial directions.

4. A press-molding roll for an undulating film according to claim 2, wherein:

the wave-shaped texture layer is formed by milling and grinding the ceramic tube sleeve body.

5. A press-molding roll for an undulating film according to claim 2, wherein:

the wave-shaped texture layer is formed by laser carving on the ceramic tube sleeve body.

6. A press-molding roll for an undulating film according to claim 2, wherein:

the wave-shaped texture layer is formed by pressing the ceramic tube sleeve body before sintering.

7. A press-molding roll for an undulating film according to claim 1, wherein:

and two axial ends of the wave-shaped texture layer are respectively provided with a calendering ring stop.

8. A press-molding roll for a wave-shaped film according to claim 1, characterized in that:

and a plurality of axial cooling runners which are uniformly distributed in the circumferential direction are arranged in the cooling roller shaft.

9. A press-molding roll for an undulating film according to claim 1, wherein:

and a spiral cooling flow channel is arranged in the cooling roller shaft.

10. A press-molding roll for an undulating film according to claim 9, wherein:

the spiral cooling runner is a cast built-in spiral cooling pipe body.

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