CN110774570B

CN110774570B - High-temperature-resistant film production equipment

Info

Publication number: CN110774570B
Application number: CN201911024196.7A
Authority: CN
Inventors: 范益鹏; 梁永华
Original assignee: Jiangmen Dengzhongtai Engineering Plastics Co ltd
Current assignee: Jiangmen Dengzhongtai Engineering Plastics Co ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2021-06-15
Anticipated expiration: 2039-10-25
Also published as: CN110774570A

Abstract

The invention discloses high-temperature-resistant film production equipment which comprises a material injection mechanism and a film pressing mechanism, wherein the material injection mechanism comprises a conveying box and a material conveying nozzle; the film pressing mechanism comprises a plurality of roller shaft groups for pressing materials, a shell and a temperature control assembly, the shell is wrapped outside all the roller shaft groups, and the temperature control assembly is used for controlling the temperature inside the shell; and a discharging platform is arranged between the material conveying nozzle and the first group of roller shaft group. When extruding the film, utilize the temperature control subassembly to control the temperature in the shell, in addition, the shell keeps warm to the inside temperature of shell to improve the ductility of raw materials, be difficult for tearing when making the extrusion film, improve the yields.

Description

High-temperature-resistant film production equipment

Technical Field

The invention relates to the field of film processing equipment, in particular to high-temperature-resistant film production equipment.

Background

The existing equipment can only be used for the thin film which can be formed at low temperature, but for the material with high temperature resistance (the melting point is more than 260 ℃), the material is broken because the strength of the material is insufficient when the material is stretched when the material is processed in the existing equipment, and the yield is reduced.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides high-temperature-resistant film production equipment which can improve the yield of high-temperature-resistant films.

According to the first aspect of the invention, the high temperature resistant film production equipment comprises:

the material injection mechanism comprises a conveying box and a material conveying nozzle;

the film pressing mechanism comprises a plurality of roller shaft groups for pressing materials, a shell and a temperature control assembly, wherein the shell is wrapped outside all the roller shaft groups, and the temperature control assembly is used for controlling the temperature inside the shell;

and a discharging platform is arranged between the material conveying nozzle and the first group of roller shaft group.

The high-temperature-resistant film production equipment provided by the embodiment of the invention at least has the following beneficial effects: when extruding the film, utilize the temperature control subassembly to control the temperature in the shell, in addition, the shell keeps warm to the inside temperature of shell to improve the ductility of raw materials, be difficult for tearing when making the extrusion film, improve the yields.

According to some embodiments of the invention, the roller shaft set comprises:

the special-shaped roller shaft group comprises an upper roller shaft and a lower roller shaft which are arranged up and down, and if the upper roller shaft is provided with a bulge, the lower roller shaft is provided with a groove with the shape matched with that of the bulge; if the upper roll shaft is provided with a groove, the lower roll shaft is provided with a bulge matched with the groove in shape, wherein the bulge is arc-shaped and is in smooth transition with the surface of the upper roll shaft or the lower roll shaft;

the parallel roller shaft group comprises two horizontally arranged straight roller shafts, and the two straight roller shafts are arranged up and down.

Utilize recess and bellied cooperation, when the raw materials through dysmorphism roller set, can effectively carry out horizontal stretch to the raw materials to promote the film and extend and compress to the thickness that needs, utilize parallel roller set to effectively make the film after the drawing simultaneously and evenly extrude, guarantee that the thickness in every region of film is unanimous, prevent that local tear.

According to some embodiments of the invention, the set of profile rolls alternate with the set of parallel rolls. After transverse stretching, the film is uniformly extruded by utilizing the parallel roll shaft group, and the film is not easy to be locally torn when the next transverse stretching is carried out.

According to some embodiments of the invention, a placing platform is arranged between two adjacent roller shaft groups. Because the film is still in a solid-liquid coexisting state in a high-temperature environment, the film is supported and conveyed by the placing platform, and material loss is effectively prevented.

According to some embodiments of the present invention, a first motor that individually controls the upper roller shaft is connected to the upper roller shaft, and a second motor that individually controls the lower roller shaft is connected to the lower roller shaft.

According to some embodiments of the invention, a third motor is connected to each of the single straight roller shafts to individually control the single straight roller shafts.

The upper roll shaft and the lower roll shaft of the special-shaped roll shaft group are controlled to rotate independently; and two straight roll shafts of the parallel roll shaft group are respectively and independently controlled to rotate, so that the upper speed and the lower speed are different, and the film is longitudinally stretched.

According to some embodiments of the invention, the curvature of the protrusions in the plurality of groups of profiled rollers in the film transport direction increases sequentially. The width of the extruded film is gradually increased, and the thickness can be effectively and gradually reduced to a desired value, so that the film making difficulty is reduced.

According to some embodiments of the invention, a heating device is provided in the set of rollers. Heat is continuously supplied to the film in the extrusion process, so that the ductility of the film is ensured.

According to some embodiments of the invention, the temperature control assembly comprises:

a heater heating an inside of the case;

the temperature detector is used for testing the temperature inside the shell and transmitting data to the MCU;

and the MCU is used for receiving data from the temperature measurer, receiving data from input preset temperature and controlling the heater to be started or stopped.

Different raw materials need to control different temperatures, through MCU centralized processing, regulate and control the temperature in the shell to guarantee that the inside temperature of shell reaches the constant temperature state, guarantee the ductility of film.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the parallel roller set in the present invention;

fig. 3 is a schematic structural diagram of the special-shaped roller set in the first embodiment of the invention.

Reference numerals:

a material injection mechanism-10; a delivery box-11; a material conveying nozzle-12; a roller set-22; a housing-21; a special-shaped roller group-221; an upper roll shaft-2211; a lower roll shaft-2212; projection-22111; groove-22121; a straight roll shaft-2221; a heater-241; a thermometer-242.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, the high temperature-resistant thin film production apparatus includes:

the material injection mechanism 10 comprises a conveying box 11 and a conveying nozzle 12;

the film pressing mechanism comprises a plurality of roller shaft groups 22 for pressing materials, a shell 21 and a temperature control assembly, wherein the shell 21 is wrapped outside all the roller shaft groups 22, and the temperature control assembly is used for controlling the temperature inside the shell 21;

wherein, a discharging platform is arranged between the material conveying nozzle 12 and the first group of roller shaft group 22.

In the course of the work, the raw materials of high temperature are inputed to defeated material mouth 12 from transport case 11, and in the entering roller group 22 of defeated material mouth 12, when the extrusion film, utilize the temperature control subassembly to control the temperature in shell 21, in addition, shell 21 keeps warm to the inside temperature of shell 21 to improve the ductility of raw materials, be difficult for tearing when making the extrusion film, improve the yields.

In this embodiment, the roller sets 22 include two types, which are a special-shaped roller set 221 and a parallel roller set 222, respectively, wherein the special-shaped roller set 221 and the parallel roller set 222 are alternately arranged.

The special-shaped roller set 221 includes an upper roller 2211 and a lower roller 2212 disposed vertically.

In the first embodiment, the upper roller 2211 is provided with a protrusion 22111, the lower roller 2212 is provided with a groove 22121 matched with the protrusion 22111 in shape, and the protrusion 22111 is arc-shaped and smoothly transits to the surface of the upper roller 2211 or the lower roller 2212.

In another embodiment, in the second embodiment, the upper roller 2211 is provided with a groove 22121, the lower roller 2212 is provided with a protrusion 22111 matching the shape of the groove 22121, and the protrusion 22111 is arc-shaped and smoothly transits to the surface of the upper roller 2211 or the lower roller 2212.

When the raw material passes through the profile roller set 221, the raw material can be effectively transversely stretched by the cooperation of the grooves 22121 and the protrusions 22111, so as to promote the extension and compression of the film to a required thickness, and it should be mentioned that the distance between the upper roller 2211 and the lower roller 2212 needs to be adaptively adjusted according to the thickness requirement of the film.

The parallel roller set 222 includes two horizontally disposed straight rollers 2221, and the two straight rollers 2221 are disposed up and down.

After transverse stretching, the middle part is easy to be too thin, materials on two sides are accumulated, the thickness of the whole film is not uniform enough, local tearing is easy to be caused, the stretched film can be effectively uniformly extruded by utilizing the parallel roller shaft group 222, the thickness of each area of the film is consistent, and local tearing is prevented.

In order to improve the yield of the film, the film is uniformly extruded immediately after being transversely stretched, and therefore, the profile roll group 221 and the parallel roll group 222 need to be alternately arranged.

In some embodiments, a placement platform is disposed between two adjacent roller sets 22. Because the film is still in a solid-liquid coexisting state in a high-temperature environment, the film is supported and conveyed by the placing platform, and material loss is effectively prevented.

In this embodiment, a first motor for individually controlling the upper roller 2211 is connected to the upper roller 2211, and a second motor for individually controlling the lower roller 2212 is connected to the lower roller 2212; meanwhile, the single straight roller shafts 2221 are each connected with a third motor that individually controls the single straight roller shafts 2221.

Each of the upper roll 2211, the lower roll 2212 and the straight roll 2221 is independently controlled, and the speed can be independently controlled, so that the upper and lower speeds of the same roll set 22 are different, and the film is longitudinally stretched.

In certain embodiments, the curvature of the projections 22111 in several of the profile roll groups 221 in the film transport direction increases sequentially. The width of the extruded film is gradually increased, and the thickness can be effectively gradually reduced to a desired value, so that the film making difficulty is reduced.

In some embodiments, a heating device is disposed in the roller set 22. Heat is continuously supplied to the film in the extrusion process, so that the ductility of the film is ensured.

a heater 241 for heating the inside of the casing 21;

a thermometer 242 for testing the temperature inside the case 21 and transmitting data to the MCU;

and the MCU receives data from the temperature detector 242, receives data from an input preset temperature, and controls the heater 241 to be turned on or off.

It should be noted that the heater 241 and the thermometer 242 are both disposed inside the housing 21.

Different raw materials need to control different temperatures, through MCU centralized processing, regulate and control the temperature in shell 21 to guarantee that the inside temperature of shell 21 reaches the constant temperature state, guarantee the ductility of film.

The specific working process is as follows, the temperature needed by the raw material is set, the raw material is input into the MCU, the set temperature is compared with the testing temperature of the temperature detector 242, the heater 241 is controlled to be switched on or switched off, the temperature in the shell 21 is kept at the set temperature, the raw material in a molten state enters the first roller shaft group 22 through the material injection mechanism 10 to be extruded, the temperature is ensured in the extruding process, the ductility of the high-temperature-resistant film raw material is ensured, the tearing caused by excessive cooling of the raw material and reduction of the ductility of partial area can be effectively avoided in the extruding process, the film is transversely stretched by the special-shaped roller shaft groups 221 in the extruding process, the width of the extruded film is gradually increased by a progressive mode, the difficulty in manufacturing the film is reduced, the parallel roller shaft groups 222 are arranged between two adjacent special-shaped roller shaft groups 221, the transverse stretching can be timely performed, the film that each regional thickness is inhomogeneous extrudees evenly, reduces the inside stress of whole film, avoids the film to tear, and in addition, at the in-process of transportation, the upper and lower extrusion transport speed of film is inconsistent, can carry out longitudinal stretching to the film to reduce film thickness.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. High temperature resistant film production facility, its characterized in that includes:

a material discharging platform is arranged between the material conveying nozzle and the first group of roller shaft groups;

the roller shaft group comprises:

the parallel roller shaft group comprises two horizontally arranged straight roller shafts, and the two straight roller shafts are arranged up and down;

the radian of the bulges in the plurality of the special-shaped roller shaft groups in the film conveying direction is sequentially increased;

the special-shaped roller shaft groups and the parallel roller shaft groups are alternately arranged.

2. The apparatus for producing high temperature resistant film as claimed in claim 1, wherein a placement platform is disposed between two adjacent roller sets.

3. The apparatus for producing a high temperature resistant film according to claim 1, wherein a first motor for individually controlling the upper roller is connected to the upper roller, and a second motor for individually controlling the lower roller is connected to the lower roller.

4. The apparatus for producing a high temperature-resistant thin film according to claim 1 or 3, wherein a third motor for individually controlling the single straight roller shaft is connected to each of the single straight roller shafts.

5. The apparatus for producing a high temperature resistant film as claimed in claim 1, wherein a heating device is provided in the roll set.

6. The apparatus for producing a refractory thin film according to claim 1, wherein the temperature control assembly comprises:

a heater heating an inside of the case;