CN111016123A

CN111016123A - Hot-melt extruder for processing and producing BOPA (biaxially oriented polyamide) film capable of preventing misconvergence

Info

Publication number: CN111016123A
Application number: CN201911286843.1A
Authority: CN
Inventors: 黄敬
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-14
Filing date: 2019-12-14
Publication date: 2020-04-17

Abstract

The invention discloses an anti-misconvergence hot-melt extruder for processing and producing BOPA (biaxially oriented polyamide) films. Has the advantages that: the invention utilizes the uniform grinding structure and the stroking grinding mechanism to perform extrusion type collision friction action on raw material particles and realizes grinding and hot melting treatment of the raw material particles under the synchronous action of heating so as to avoid that the interior of hot-melting fluid contains smaller powdery particles which are not completely hot-melted, so that the surface of a finished product film is in a sharp granular shape, and the finished product film is easy to buckle down so as to cause the hole phenomenon of a film bag, so that the packaged food is changed in quality.

Description

Hot-melt extruder for processing and producing BOPA (biaxially oriented polyamide) film capable of preventing misconvergence

Technical Field

The invention relates to the technical field of hot-melt extrusion molding of film raw material particles, in particular to an anti-agglomeration hot-melt extruder for processing and producing a BOPA film.

Background

The BOPA film is a stretched film which is currently continued from BOPET and BOPP, has wide application in the field of food, and has a function of prolonging the shelf life of the food due to excellent barrier property of the BOPA film. When the BOPA film is processed, the hot melting of raw material particles plays a decisive role in the quality of finished products, the raw material of the film particles is poured into a hot melting extruder, and when the raw material of the film particles is extruded and output, the raw material of the particles needs to be heated and dissolved to completely melt the raw material of the particles, but the existing BOPA composite film on the market often shows granular shapes, so that the surface of the finished product is in a sharp shape and is easy to be manually buckled down, and the film bag has a hole phenomenon, so that the quality of packaged food is changed. Meanwhile, after the particles are completely melted, the color of the melted part of the particles is darker than that of other positions, which directly affects the thickness of the whole film.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the hot-melt extruder for processing and producing the anti-mixing BOPA film, so as to solve the problems that the granular raw materials of the film in the prior art need to be heated and dissolved to be completely melted when being poured into the hot-melt extruder for extrusion output, but the existing BOPA composite film in the market is marked with granular shapes, so that the surface of a finished product is in a sharp shape and is easily buckled by people, the hole phenomenon of a film bag is caused, and the quality of packaged food is changed. Meanwhile, after the particles are completely melted, the color of the melted portions of the particles is darker than that of the melted portions of the particles at other positions, which directly affects the thickness of the whole film.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the utility model provides a prevent hot melt extruder for processing production of muddy BOPA film, its structure includes installation base, driving motor, speed reducer, loading hopper, grinder, extrudes screw rod, melt gear pump, die head, driving motor installs in installation base upper surface left side and is connected through the electric welding with the speed reducer, the speed reducer is located installation base upper surface left side, the loading hopper is located the speed reducer right side and is connected through the electric welding, grinder installs in the loading hopper lower surface and is connected through the electric welding, it locates grinder right side surface to extrude the screw rod, the melt gear pump is located and is extruded screw rod right side surface and be connected through the electric welding, the die head is located melt gear pump right side surface and is connected through electric welding is perpendicular, grinder includes flat round cover, rotary rod, even grinding structure, melt-mixing structure, flat round cover upper portion is the opening form and is connected through the electric welding with the loading hopper, the rotary rod is installed in the middle of the oblate sleeve and connected through sleeving, the uniform grinding structure is arranged on the left side wall in the oblate sleeve, and the melting and mixing structure is installed on the right side wall in the oblate sleeve and connected with the uniform grinding structure through friction.

As a further scheme of the invention, the uniform grinding structure comprises a heat conduction plate, a heating ring and a star cone, wherein the heating ring is arranged on the left side surface of the heat conduction plate and is connected with the heat conduction plate through electric welding, the star cones are respectively arranged on the surfaces of the heat conduction plate and are connected with the heat conduction plate through electric welding, and the star cones are connected with the melt-mixing structure through friction, so that heating, hot melting and friction assistance on raw material particles are favorably realized.

As a further scheme of the invention, the star cones are of a sharp structure and are made of heat-conducting materials, so that extrusion type friction with the convex particles is realized, and the raw material particles are crushed to the maximum extent.

As a further scheme of the invention, the melting and mixing structure comprises a rotary disc, a stroking mechanism and a color thinning mechanism, wherein the rotary disc is connected with a rotary rod through electric welding, the stroking mechanism is arranged on the left side surface of the rotary disc and is connected with a star cone through friction, and the color thinning mechanism is arranged on the surface of the stroking mechanism and is connected with the star cone through electric welding, so that the melting and mixing effects on raw material particles and colors after the melting are favorably realized.

According to a further scheme of the invention, the stroking mechanism comprises eight stroking plates, a groove and a circulation strip, wherein the eight stroking plates are uniformly and equidistantly arranged on the surface of a turntable and are connected with the surface of the turntable through electric welding, the stroking plates are connected with a color thin mechanism through electric welding, the groove is formed in the surface of the stroking plates and is of an integrated structure, and the circulation strip is arranged in the middle of the interior of the stroking plates and is connected with the groove in a penetrating manner, so that the maximum dissolution of raw material particles is realized.

As a further scheme of the invention, the surface of the stroking and grinding plate is provided with a plurality of convex particles which are in collision friction connection with the star cones, so that the raw material particles are ground and completely dispersed.

As a further scheme of the invention, the color thinning mechanism comprises an air vent ring and a connecting air plate, the air vent ring penetrates through the middle surface of the stroking and grinding plate and is connected with the middle surface of the stroking and grinding plate through electric welding, the connecting air plate is provided with eight blocks which are uniformly and equidistantly arranged on the surface of the air vent ring, and the connecting air plate is arranged between the two stroking and grinding plates, so that the color difference is avoided, and the thickness of a finished product is influenced.

As a further scheme of the invention, the connecting air plate is internally provided with outward air flow, and the surface air holes of the connecting air plate are of a one-way air outlet structure, so that the color of the hot-melt fluid can be uniformly mixed.

Advantageous effects of the invention

Compared with the traditional hot-melt extruder for processing and producing the BOPA film, the anti-mixing hot-melt extruder has the following beneficial effects:

the invention utilizes the mutual matching of the uniformly-grinding structure and the stroking mechanism to realize the extrusion type collision friction effect on the raw material particles and realize the grinding and hot melting treatment of the raw material particles under the synchronous action of heating, thereby avoiding the phenomenon that the surface of a finished film product is in a sharp particle shape due to the fact that the hot melting fluid contains smaller powdery particles which are not completely hot-melted, and the film bag is easy to be manually buckled down to cause the hole phenomenon, so that the quality of packaged food is changed.

The invention utilizes the color thinning mechanism to grind raw material particles of hot-melt fluid, and simultaneously carries out air blowing type flow treatment on the fluid after the particles are hot-melted by connecting the air flow output outwards from the inside of the air plate, thereby leading the fluid to be in a dispersed structure and to have mixing action with other fluid with lighter color, and avoiding the direct influence on the thickness of the whole film due to different color depths.

Drawings

Other features, objects and advantages of the invention will become more apparent from a reading of the detailed description of non-limiting embodiments with reference to the attached drawings.

In the drawings:

FIG. 1 is a schematic structural diagram of a hot-melt extruder for processing and producing an anti-misconvergence BOPA film.

FIG. 2 is a schematic front view of the polishing apparatus of the present invention.

FIG. 3 is a right side view schematic diagram of the level grinding structure of the present invention.

FIG. 4 is a schematic view of the left side of the melt-mixing structure of the present invention.

FIG. 5 is a front view of the stroking mechanism of the present invention.

Fig. 6 is a front view of the flow strip of the present invention.

Fig. 7 is a left side view of the melt-mixing structure of the present invention.

In the figure: the device comprises a mounting base-1, a driving motor-2, a speed reducer-3, a feeding hopper-4, a grinding device-5, an extrusion screw-6, a melt gear pump-7, a die head-8, a oblate sleeve-5 a, a rotary rod-5 b, a uniform grinding structure-5 c, a melt mixing structure-5 d, a heat conducting plate-5 c1, a heating ring-5 c2, a star cone-5 c3, a rotary disc-5 d1, a stroking mechanism-5 d2, a color thinning mechanism-5 d3, a stroking plate-5 d21, a groove-5 d22, a circulating strip-5 d23, a convex particle-g, a vent ring-5 d31 and a connecting air plate-5 d 32.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

The first embodiment:

as shown in fig. 1-6, the invention provides a technical scheme of a hot-melt extruder for processing and producing an anti-misconvergence BOPA film, which comprises the following steps:

as shown in figures 1-2, the hot melt extruder for processing and producing the BOPA film capable of preventing the mixture comprises an installation base 1, a driving motor 2, a speed reducer 3, a hopper 4, a grinding device 5, an extrusion screw 6, a melt gear pump 7 and a die head 8, wherein the driving motor 2 is installed on the left side of the upper surface of the installation base 1 and is connected with the speed reducer 3 through electric welding, the speed reducer 3 is arranged on the left side of the upper surface of the installation base 1, the hopper 4 is arranged on the right side of the speed reducer 3 and is connected through electric welding, the grinding device 4 is installed on the lower surface of the hopper 4 and is connected through electric welding, the extrusion screw 6 is arranged on the right side surface of the grinding device 5, the melt gear pump 7 is arranged on the right side surface of the extrusion screw 6 and is connected through electric welding, the die head 8 is arranged, grinder 5 includes oblate cover 5a, rotary rod 5b, even mill structure 5c, melts muddy structure 5d, oblate cover 5a upper portion is the opening form and is connected through the electric welding with loading hopper 4, rotary rod 5b installs in oblate cover 5a middle part and is connected through the registrate, even mill structure 5c locates oblate cover 5a interior left side wall, it installs right side wall in oblate cover 5a and is connected through the friction with even mill structure 5c to melt muddy structure 5 d.

As shown in fig. 3, the even grinding structure 5c includes a heat conduction plate 5c1, a heating ring 5c2, a star cone 5c3, the heating ring 5c2 is installed on the left side surface of the heat conduction plate 5c1 and connected by electric welding, the star cone 5c3 is provided with a plurality of and installed on the surface of the heat conduction plate 5c1 respectively, the star cone 5c3 is connected with the heat conduction plate 5c1 by electric welding, and the star cone 5c3 is connected with the melt-mixing structure 5d by friction, which is beneficial to heating, melting and friction assistance for raw material particles.

As shown in fig. 3, the star cone 5c3 is in a protruding shape and is made of a heat conductive material, which is beneficial to realizing the extrusion type friction with the protruding grains g, thereby realizing the maximum crushing effect on the raw material grains.

As shown in fig. 4, the melt-mix structure 5d includes a rotary disk 5d1, a smoothing mechanism 5d2 and a color thinning mechanism 5d3, the rotary disk 5d1 is connected with a rotary rod 5b through electric welding, the smoothing mechanism 5d2 is arranged on the left side surface of the rotary disk 5d1 and is connected with a star cone 5c3 through friction, the color thinning mechanism 5d3 is arranged on the surface of the smoothing mechanism 5d2 and is connected through electric welding, and the melt-mix structure is favorable for realizing the hot melting of raw material particles and the uniform mixing effect of colors after the hot melting.

As shown in fig. 5-6, the stroking mechanism 5d2 includes a stroking plate 5d21, a groove 5d22 and a circulation strip 5d23, the stroking plate 5d21 is provided with eight blocks, the eight blocks are respectively installed on the surface of the turntable 5d1 in a uniform and equidistant manner and connected through electric welding, the stroking plate 5d21 is connected with the color thin mechanism 5d3 through electric welding, the groove 5d22 is arranged on the surface of the stroking plate 5d2 and is of an integrated structure, the circulation strip 5d23 is arranged in the middle of the stroking plate 5d21 and is connected through the groove 5d22, and maximum dissolution of raw material particles is facilitated.

As shown in fig. 5-6, the surface of the stroking plate 5d21 is provided with a plurality of convex particles g which are in collision friction connection with the star-cone 5c3, so as to facilitate grinding of raw material particles and complete dispersion of the raw material particles.

In summary, the smoothing and grinding mechanism 5d2 and the even grinding structure 5c are matched with each other, so that the complete hot melting effect of the raw material particles is realized.

The present example is to solve the problem that when the raw material of film particles is poured into a hot-melt extruder and extruded out, the particle raw materials need to be heated and dissolved to be completely melted, but the BOPA composite film usually has marked particles on the market, so that the surface of the finished product is sharp and is easy to be buckled by people, thereby causing the hole phenomenon of the film bag and the quality change of the packaged food, realizing the extrusion type collision friction effect of the raw material particles by utilizing the mutual matching of the uniform grinding structure and the stroking mechanism, realizing the grinding and hot melting treatment of the raw material particles under the synchronous action of heating, so as to avoid the situation that the inside of the hot melt fluid contains smaller powdery particles which are not completely hot melted, and the surface of the finished product film has abrupt particles, the food bag is easy to be buckled by people, so that the film bag has a hole phenomenon, and the quality of the packaged food is changed.

The specific realization principle is as follows: raw material particles are fed through a feeding hopper 4, equipment is started to carry out hot melting extrusion, the raw material particles fall into an oblate sleeve 5a through the feeding hopper 4, a melting and mixing structure 5d carries out rotary motion under the action of electrifying a rotary rod 5b, a stroking mechanism 5d2 utilizes convex particles g arranged on the surface of a stroking plate 5d21 to collide with a star cone 5c3 under the action of the rotary motion so as to carry out friction extrusion, thereby leading the raw material particles to realize the grinding treatment of the raw material particles under the integral stroking action of the grinding device, meanwhile, when the convex particles g and the star cones 5c3 are ground, the heat conducting plate 5c1 is acted by heat from the heating ring 5c2, the heating treatment is realized to the raw material particles which are being ground, thereby effectively leading the raw material particles to be in the maximum scattered crushing treatment under the double effects of heating and grinding, the crushed raw material is introduced into the extrusion screw 6 through the flow bar d23 and is extruded.

Second embodiment:

as shown in fig. 1, fig. 2, fig. 4 and fig. 7, the invention provides a technical scheme of a hot-melt extruder for processing and producing an anti-misconvergence BOPA film, which comprises the following steps:

As shown in fig. 4, the even grinding structure 5c includes a heat conduction plate 5c1, a heating ring 5c2, a star cone 5c3, the heating ring 5c2 is installed on the left side surface of the heat conduction plate 5c1 and connected by electric welding, the star cone 5c3 is provided with a plurality of and installed on the surface of the heat conduction plate 5c1 respectively, the star cone 5c3 is connected with the heat conduction plate 5c1 by electric welding, and the star cone 5c3 is connected with the melt-mixing structure 5d by friction, which is beneficial to heat and melt raw material particles and assist friction.

7 as shown in the figure, color-thinning mechanism 5d3 includes air ring 5d31, connects air plate 5d32, air ring 5d31 runs through the surface of stroking plate 5d21 middle part and leads to and is connected through the electric welding, it is equipped with eight altogether and is evenly equidistance respectively and installs in air ring 5d31 surface to connect air plate 5d32, it installs between two stroking plates 5d21 to connect air plate 5d32, is favorable to realizing avoiding the chromatic aberration that has now to influence its off-the-shelf thickness.

As shown in fig. 7, the connecting air plate 5d32 is provided with an outward air flow inside and the surface air holes are in a one-way air outlet structure, which is beneficial to uniformly mixing the colors of the hot-melt fluid.

In summary, the color thin mechanism 5d3 provided in the invention is used for uniformly mixing the colors of the hot-melted raw material particles.

This embodiment is in order to solve the raw materials graininess by complete hot melt back, the colour of its granule hot melt department than other positions appears darker, then can directly influence the thickness of whole film, so utilize the colour thin mechanism that is equipped with, when it is the raw materials granule grinding to hot melt fluid, through the inside outside air current of output of connecting the gas board, the fluid after the granule hot melt is made the flow of air blowing formula and is handled, thereby make to be the scattered structure and do the mixed action with the lighter fluid of other colours, in order to avoid appearing because of the colour depth differs, and directly influence the thickness of whole film.

The specific realization principle is as follows: the vent ring 5d31 is connected with the stroking mechanism 5d2, and rotates synchronously with the stroking mechanism 5d2, and the air flow arranged in the connecting air plate 5d32 is an outward output air flow, so that the air flow is output outwards while rotating, and the dispersed fluid raw material is blown under the mutual cooperation of the stroking mechanism 5d2 and the uniform grinding structure 5c, so that the fluid raw material is mixed with other fluid with lighter color, and the direct influence on the thickness of the whole film due to different color depths is avoided.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a prevent hot melt extruder for processing production of BOPA film of misconvergence, its structure includes installation base (1), driving motor (2), speed reducer (3), loading hopper (4), grinder (5), extrusion screw (6), melt gear pump (7), die head (8), its characterized in that: the driving motor (2) is installed on the left side of the upper surface of the installation base (1) and is connected with the speed reducer (3) through electric welding, the speed reducer (3) is installed on the left side of the upper surface of the installation base (1), the loading hopper (4) is installed on the right side of the speed reducer (3) and is connected through electric welding, the grinding device (4) is installed on the lower surface of the loading hopper (4) and is connected through electric welding, the extrusion screw (6) is installed on the right side surface of the grinding device (5), the melt gear pump (7) is installed on the right side surface of the extrusion screw (6) and is connected through electric welding, and the die head (8) is installed on the right side surface of the melt gear pump;

grinder (5) are including oblate cover (5 a), rotary rod (5 b), even mill structure (5 c), melt and mix structure (5 d), oblate cover (5 a) upper portion is the opening form and is connected through the electric welding with loading hopper (4), rotary rod (5 b) are installed in oblate cover (5 a) middle part and are connected through the registrate, evenly grind structure (5 c) and locate oblate cover (5 a) interior left side wall, melt and mix structure (5 d) and install in oblate cover (5 a) right side wall and be connected through the friction with even mill structure (5 c).

2. The hot melt extruder for processing and producing the anti-misconvergence BOPA film as claimed in claim 1, wherein: even grind structure (5 c) including heat-conducting plate (5 c 1), heating ring (5 c 2), star awl (5 c 3), heating ring (5 c 2) are installed in heat-conducting plate (5 c 1) left surface and are connected through the electric welding, star awl (5 c 3) are equipped with a plurality of and install respectively in heat-conducting plate (5 c 1) surface, star awl (5 c 3) are connected through the electric welding with heat-conducting plate (5 c 1), star awl (5 c 3) are connected through the friction with melt structure (5 d).

3. The hot melt extruder for processing and producing the anti-misconvergence BOPA film as claimed in claim 2, wherein: the star cone (5 c 3) is in a sharp structure and is made of heat conducting materials.

4. A hot melt extruder for the manufacture of anti-mingling BOPA film according to claim 1 or 2, wherein: melt and mix structure (5 d) including carousel (5 d 1), smooth out mill mechanism (5 d 2), thin mechanism of colour (5 d 3), carousel (5 d 1) are connected through the electric welding with rotary rod (5 b), smooth out mill mechanism (5 d 2) and locate carousel (5 d 1) left side surface and be connected through the friction with star awl (5 c 3), thin mechanism of colour (5 d 3) install smooth out mill mechanism (5 d 2) surface and be connected through the electric welding.

5. The hot melt extruder for processing and producing the anti-misconvergence BOPA film as claimed in claim 4, wherein: rub with fingers mechanism (5 d 2) including smoothing with fingers grinding board (5 d 21), recess (5 d 22), circulation strip (5 d 23), rub with fingers grinding board (5 d 21) and be equipped with eight altogether and be even equidistance respectively and form and install in carousel (5 d 1) surface and be connected through the electric welding, rub with fingers grinding board (5 d 21) and look thin mechanism (5 d 3) and be connected through the electric welding, recess (5 d 22) are located and are rubbed with fingers grinding board (5 d 2) surface and be the integral structure, circulation strip (5 d 23) are located and are rubbed with fingers grinding board (5 d 21) interior middle part and run through with recess (5 d 22) and be connected.

6. A hot melt extruder for the manufacture of anti-mingling BOPA films as claimed in claim 4 or claim 2, wherein: the surface of the stroking and grinding plate (5 d 21) is provided with a plurality of convex particles (g) which are in collision friction connection with the star cone (5 c 3).

7. A hot melt extruder for the manufacture of anti-mingling BOPA films as claimed in claim 4 or claim 5, wherein: look thin mechanism (5 d 3) include breather ring (5 d 31), connect air plate (5 d 32), breather ring (5 d 31) run through and smooth out grinding board (5 d 21) middle part surface and lead to and be connected through the electric welding, it is equipped with eight altogether and is installed in breather ring (5 d 31) surface respectively to connect air plate (5 d 32), it installs between two smooth out grinding boards (5 d 21) to connect air plate (5 d 32).

8. The hot melt extruder for processing and producing the anti-misconvergence BOPA film as claimed in claim 7, wherein: the connecting air plate (5 d 32) is internally provided with outward air flow, and the surface air holes of the connecting air plate are of a one-way air outlet structure.