CN112873783A

CN112873783A - Forming device and process for producing gelatin composite geomembrane

Info

Publication number: CN112873783A
Application number: CN202110132907.3A
Authority: CN
Inventors: 吴刚; 刘宴华; 荆赫然
Original assignee: Individual
Current assignee: Luzhou Shengyang New Material Co ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-06-01
Anticipated expiration: 2041-02-01
Also published as: CN112873783B

Abstract

The invention discloses a forming device and a process for producing a gelatin composite geomembrane, belonging to the field of geomembranes and comprising a machine shell, wherein the front end of the machine shell is fixedly connected with a leading-out cover, the rear end of the leading-out cover is slidably connected with a flow passage adjusting plate matched with the machine shell, the front end of the leading-out cover is provided with a membrane equalizing assembly, and the left end and the right end of the leading-out cover are both connected with electromagnetic adjusting assemblies; the adjusting support plates are fixedly connected to the left end and the right end of the flow channel adjusting plate respectively, the size of current in the electromagnetic adjusting assembly can be controlled, the flow channel adjusting plate is controlled, the membrane equalizing assembly and the flow channel adjusting plate are adjusted synchronously through the transition gear, the membrane thickness is effectively changed, the adjusting precision is improved, the membrane equalizing assembly and the flow channel adjusting plate are synchronized, the outflow volume of a solution is matched with the membrane forming thickness, the uniformity of a thin membrane is effectively increased, and the quality of the gelatin composite geomembrane is improved.

Description

Forming device and process for producing gelatin composite geomembrane

Technical Field

The invention relates to the field of geomembranes, in particular to a forming device and a process for producing a gelatin composite geomembrane.

Background

In recent years, the great application and effect of geosynthetics in civil engineering, especially in flood control and emergency work, have attracted great attention from the great engineering technicians. For the application technology of the geosynthetics, the state puts forward the normative technical requirements from the aspects of seepage prevention, reverse filtration, drainage, reinforcement, protection and the like, and the popularization and application pace of new materials is greatly accelerated.

At present, plastic films for domestic and overseas anti-seepage application mainly comprise polyvinyl chloride (PVC), Polyethylene (PE) and EVA (ethylene/vinyl acetate copolymer), and ECB (ethylene vinyl acetate modified asphalt blended geomembrane) is also designed and used in tunnel application, is a high-molecular chemical flexible material, and has the advantages of small specific gravity, strong extensibility, high deformation adaptability, corrosion resistance, low temperature resistance and good freezing resistance.

The gelatin composite geomembrane is a simple and popular way to make plastic particles into a plastic film by a film spraying method to form the geomembrane, namely a waterproof board (according to the thickness of the geomembrane). Because the gelatin composite geomembrane adopts geotextile (woven fabric or plastic woven fabric) as base cloth, the gelatin composite geomembrane has the functions of isolating, draining, reinforcing and protecting soil engineering, also has the function of sealing (seepage prevention), can be widely applied to many fields of water conservancy dams, road building, airports, drainage, houses, environmental protection and the like, and mainly plays the roles of seepage prevention, protection, reinforcement and the like in engineering.

The gelatin composite geomembrane has excellent heat sealing performance and excellent transparency, is one of main packaging composite base materials, and has a good market. Moreover, with the development of domestic gelatin composite geomembrane production equipment, part of technical indexes of the equipment reach the international advanced level. But forming device on the compound geomembrane production line of current gelatin need manually adjust through the adjusting pin when the basic thickness of adjustment solution to different specification demands, and the regulation precision is lower, influences the degree of consistency of the membrane body, and then influences the quality of compound geomembrane of gelatin to shaping efficiency has been reduced.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a forming device and a forming process for producing a gelatin composite geomembrane, wherein the flow channel adjusting plate can be controlled by controlling the current in an electromagnetic adjusting assembly, and the membrane equalizing assembly and the flow channel adjusting plate are synchronously adjusted through a transition gear, so that the membrane thickness is effectively changed, the adjusting precision is improved, the membrane equalizing assembly and the flow channel adjusting plate are synchronous, the outflow quantity of a solution is matched with the film forming thickness, the uniformity of the film is effectively increased, and the quality of the gelatin composite geomembrane is improved.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A molding device for producing a gelatin composite geomembrane comprises a machine shell, wherein a leading-out cover is fixedly connected to the front end of the machine shell, a flow passage adjusting plate matched with the machine shell is slidably connected to the rear end of the leading-out cover, a membrane equalizing assembly is installed at the front end of the leading-out cover, and electromagnetic adjusting assemblies are connected to the left end and the right end of the leading-out cover;

the flow channel adjusting plate is characterized in that adjusting support plates are fixedly connected to the left end and the right end of the flow channel adjusting plate, the outer ends of the adjusting support plates extend to the outer side of the leading-out cover and are matched with the electromagnetic adjusting assembly, transmission racks are fixedly connected to the front ends of the adjusting support plates, transition gears meshed with the transmission racks are rotatably connected to the left inner wall and the right inner wall of the leading-out cover, and the transition gears are matched with the membrane equalizing assembly. The flow channel adjusting plate is controlled by controlling the current in the electromagnetic adjusting assembly, the membrane equalizing assembly and the flow channel adjusting plate are synchronously adjusted through the transition gear, the adjusting precision is improved while the thickness of the membrane is effectively changed, the membrane equalizing assembly and the flow channel adjusting plate are synchronous, the outflow of a solution is matched with the thickness of the formed membrane, the uniformity of the membrane is effectively improved, and the quality of the gelatin composite geomembrane is improved.

Furthermore, the upper end of the casing is fixedly connected with a lower runner plate, the upper end of the casing is fixedly connected with an upper runner plate positioned on the upper side of the lower runner plate, the lower runner plate and the upper runner plate are both provided with runner grooves matched with each other, and the upper end of the casing is fixedly provided with a hot melting block positioned on the upper side of the upper runner plate. The hot melting block is used for preserving heat of the solution entering the groove, so that the flowability of the solution in the casing is effectively ensured, the adhesion of the solution during film forming is effectively avoided, and the forming effect and the forming efficiency are improved.

Furthermore, a plurality of runner adjustment grooves are formed in the lower end of the runner adjustment plate, and the runner adjustment grooves are matched with the runner grooves. The flow passage adjusting plate adjusts the melt flowing out of the flow passage adjusting groove through the flow passage adjusting groove, changes the section shape of the thickness of the melt, and enables the membrane equalizing assembly to effectively press the melt into a thin membrane with the specified thickness.

Further, the electromagnetic adjusting assembly is including the electromagnetism box, draw forth the equal fixedly connected with electromagnetism box in both ends about the cover, inner wall fixedly connected with bottom plate under the electromagnetism box, solenoid is installed to the bottom plate upper end, the inside fixedly connected with of electromagnetism box is located the magnetic conduction piece of solenoid upside, magnetic conduction piece upper end fixedly connected with loop bar, loop bar upper end sliding connection has the guide bar, guide bar upper end fixedly connected with attracts the iron plate, and the guide bar outer end cover is equipped with reset spring. The magnetic coil is electrified to generate magnetism, so that the magnetic conduction block adsorbs the attraction iron block, the attraction iron block slides under the guidance of the guide rod and the sleeve rod, and the position of the flow channel adjusting plate is adjusted through the adjusting support plate, so that the flow channel adjusting groove is matched with the flow channel groove, and the outflow section of the solution is adjusted.

Furthermore, the leading-out cover and the electromagnetic box are both provided with long sliding grooves matched with the adjusting support plates, and the adjusting support plates extend into the electromagnetic box through the long sliding grooves and are fixedly connected with the attraction iron blocks.

Furthermore, the lower end of the electromagnetic coil is fixedly connected with a conductive wire, and the lower end of the conductive wire extends to the outer side of the electromagnetic box and is electrically connected with the current regulator. The current in the electromagnetic coil is controlled through the current regulator, the magnetic size generated by the electromagnetic coil is further controlled, the attraction force of the electromagnetic coil on the attraction iron block is regulated, the position of the flow channel regulating plate is effectively and accurately controlled, the regulating precision is effectively improved, the automation degree of the forming device is improved, and the input of manpower is reduced.

Furthermore, the membrane equalizing assembly comprises a membrane equalizing rotating rod, the leading-out cover is connected with the membrane equalizing rotating rod located on the front side of the transition gear in a rotating mode, the outer end of the membrane equalizing rotating rod is fixedly connected with a membrane equalizing fin plate, and the left end and the right end of the membrane equalizing rotating rod are fixedly connected with a membrane equalizing gear meshed with the transition gear. The transition gear drives the flow channel adjusting plate to move through the film equalizing gear, so that the flow channel adjusting plate moves downwards, the film equalizing rotating rod drives the film equalizing fin plate to rotate downwards, the film equalizing assembly is synchronous with the flow channel adjusting plate, the flow of a solution is effectively matched with the thickness of a formed film, the uniformity of the thickness of the formed film is improved, and the quality of the film is improved.

In addition, the invention also discloses a production process of the gelatin composite geomembrane, which comprises the following steps:

s1, material pumping: a fan is used for pumping the hopper into a certain vacuum degree, and the material is sucked into the hopper through a feeding pipe under the action of atmospheric pressure;

s2, material weight measurement: configuring a gravimetric hopper to measure actual feed flow;

s3, extruding by an extruder: the extruder pressurizes and melts the materials, and extrudes the melted solution;

s4, filtering: filtering out impurities and un-plasticized materials in the solution by using a filter screen, and maintaining the pressure of the solution;

s5, forming a film by a forming device: the solution enters a runner groove in the shell, the heights of the membrane equalizing assembly and the runner adjusting plate are controlled by controlling the current of the electromagnetic adjusting assembly, and the thickness of the formed membrane is adjusted;

s6, shaping by a shaping device: the film is attached to the cold roller by using the acting force generated by electrostatic charge, the film is pulled, and the solidified film is conducted and cooled by the double-cold-roller casting system;

s7, thickness detection: measuring the total thickness of the film and the thickness of the single-layer nylon by adopting a plurality of measuring heads of infrared rays, and adjusting the thickness of the film by an electromagnetic adjusting assembly in a forming device;

s8, trimming the film edge: crushing the edge strips of the film into sheets or pressing the sheets into blocks;

s9, corona treatment: treating the surface of the film in a discharge mode of the electrode;

s10, rolling a thin film: winding the film by using a film winding machine;

s11, aging treatment, slitting and rewinding: carrying out aging treatment on the wound film for 24 hours, and then slitting and rewinding by using a rewinding machine;

s12, composite film forming: and (3) coating the geotextile on the surface of the membrane in a calendaring and hot-melt coating mode to prepare the cloth-membrane type gelatin composite geomembrane. The efficiency and the precision of producing the film are improved by using an automatic production line, and the film is compounded with the geotextile by using the composite film forming equipment, so that the gelatin composite geomembrane is effectively obtained, the production efficiency of the gelatin composite geomembrane is improved, and the production cost of the gelatin composite geomembrane is reduced.

Further, in the step S12, the geotextiles are applied to the upper and lower end surfaces of the film by calendering and hot-melt coating, so as to obtain the two-cloth one-film gelatin composite geomembrane.

Further, in the step S12, the geotextiles are applied to the upper and lower end faces of the film by calendering and hot melt coating, the film is continuously applied to the outer end of the geotextile, the geotextile is applied to the film to be added later, and the process is repeated to obtain the multi-cloth multi-film gelatin composite geomembrane. By adopting different compounding modes, the gelatin composite geomembrane with different specification forms can be obtained, the production diversity of enterprises is effectively improved, the production cost of the enterprises is reduced, and the economic benefit of producing the gelatin composite geomembrane is improved.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) the size of electric current in this scheme is through control electromagnetism adjusting part to control the runner regulating plate, and make the uniform membrane subassembly and carry out the synchro-control with the runner regulating plate through transition gear, effectively when changing into the film thickness, improve the regulation precision, make uniform membrane subassembly and runner regulating plate synchronous, make the outflow of solution and film forming thickness cooperate, effectively increase the degree of consistency of film, improve the quality of compound geomembrane of gelatin.

(2) The hot melting block is used for preserving heat of the solution entering the groove, so that the flowability of the solution in the casing is effectively ensured, the adhesion of the solution during film forming is effectively avoided, and the forming effect and the forming efficiency are improved.

(3) The flow passage adjusting plate adjusts the melt flowing out of the flow passage adjusting groove through the flow passage adjusting groove, changes the section shape of the thickness of the melt, and enables the membrane equalizing assembly to effectively press the melt into a thin membrane with the specified thickness.

(4) The magnetic coil is electrified to generate magnetism, so that the magnetic conduction block adsorbs the attraction iron block, the attraction iron block slides under the guidance of the guide rod and the sleeve rod, and the position of the flow channel adjusting plate is adjusted through the adjusting support plate, so that the flow channel adjusting groove is matched with the flow channel groove, and the outflow section of the solution is adjusted.

(5) The current in the electromagnetic coil is controlled through the current regulator, the magnetic size generated by the electromagnetic coil is further controlled, the attraction force of the electromagnetic coil on the attraction iron block is regulated, the position of the flow channel regulating plate is effectively and accurately controlled, the regulating precision is effectively improved, the automation degree of the forming device is improved, and the input of manpower is reduced.

(6) The transition gear drives the flow channel adjusting plate to move through the film equalizing gear, so that the flow channel adjusting plate moves downwards, the film equalizing rotating rod drives the film equalizing fin plate to rotate downwards, the film equalizing assembly is synchronous with the flow channel adjusting plate, the flow of a solution is effectively matched with the thickness of a formed film, the uniformity of the thickness of the formed film is improved, and the quality of the film is improved.

(7) The efficiency and the precision of producing the film are improved by using an automatic production line, and the film is compounded with the geotextile by using the composite film forming equipment, so that the gelatin composite geomembrane is effectively obtained, the production efficiency of the gelatin composite geomembrane is improved, and the production cost of the gelatin composite geomembrane is reduced.

(8) By adopting different compounding modes, the gelatin composite geomembrane with different specification forms can be obtained, the production diversity of enterprises is effectively improved, the production cost of the enterprises is reduced, and the economic benefit of producing the gelatin composite geomembrane is improved.

Drawings

FIG. 1 is a schematic view of an axial structure of the apparatus of the present invention;

FIG. 2 is a schematic view of the process flow structure of the present invention;

FIG. 3 is a schematic cross-sectional exploded view of the apparatus of the present invention;

FIG. 4 is a schematic view of the bottom view axial view of the upper flow field plate of the present invention;

FIG. 5 is a schematic diagram of the axial structure of the lower runner plate of the present invention;

FIG. 6 is a schematic axial view of the flow channel adjusting plate according to the present invention;

FIG. 7 is a schematic axial view of a membrane equalization assembly according to the present invention;

FIG. 8 is a schematic view of the matched axial structure of the membrane equalizing assembly and the flow passage adjusting plate according to the present invention;

FIG. 9 is a schematic cross-sectional, axial view of the electromagnetic adjustment assembly of the present invention;

FIG. 10 is a schematic view of the structure of the process line of the present invention.

The reference numbers in the figures illustrate:

the device comprises a machine shell 1, a lower runner plate 101, an upper runner plate 102, a 2 leading-out cover, 3 hot frits, 4 electromagnetic adjusting components, a 401 electromagnetic box, a 402 bottom plate, a 403 electromagnetic coil, a 404 magnetic conduction block, a 405 guide rod, a 406 loop bar, a 407 return spring, a 408 attracting iron block, a 5 uniform membrane component, a 501 uniform membrane rotating rod, a 502 uniform membrane fin plate, a 503 uniform membrane gear, a 6 flow channel adjusting plate, a 601 flow channel adjusting groove, a 602 adjusting support plate, a 603 transmission rack and a 7 transition gear.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-10, a molding device for producing a gelatin composite geomembrane comprises a casing 1, wherein a leading-out cover 2 is fixedly connected to the front end of the casing 1, a flow passage adjusting plate 6 matched with the casing 1 is slidably connected to the rear end of the leading-out cover 2, a membrane equalizing assembly 5 is mounted at the front end of the leading-out cover 2, and electromagnetic adjusting assemblies 4 are connected to the left and right ends of the leading-out cover 2; referring to fig. 6, the left and right ends of the flow channel adjustment plate 6 are both fixedly connected with adjustment support plates 602, the outer ends of the adjustment support plates 602 extend to the outer side of the extraction cover 2 and are matched with the electromagnetic adjustment assembly 4, the front ends of the adjustment support plates 602 are fixedly connected with transmission racks 603, the left and right inner walls of the extraction cover 2 are both rotatably connected with transition gears 7 engaged with the transmission racks 603, and the transition gears 7 are matched with the membrane equalizing assembly 5. The flow channel adjusting plate 6 is controlled by controlling the current in the electromagnetic adjusting assembly 4, the membrane equalizing assembly 5 and the flow channel adjusting plate 6 are synchronously adjusted through the transition gear 7, the membrane thickness is effectively changed, the adjusting precision is improved, the membrane equalizing assembly 5 and the flow channel adjusting plate 6 are synchronous, the outflow of a solution is matched with the membrane forming thickness, the uniformity of the membrane is effectively increased, and the quality of the gelatin composite geomembrane is improved.

Referring to fig. 3-5, the upper end of the casing 1 is fixedly connected with a lower flow plate 101, the upper end of the casing 1 is fixedly connected with an upper flow plate 102 positioned on the upper side of the lower flow plate 101, the lower flow plate 101 and the upper flow plate 102 are both provided with flow channels which are matched with each other, and the upper end of the casing 1 is fixedly provided with a hot melt block 3 positioned on the upper side of the upper flow plate 102. The hot melting block 3 is used for preserving heat of the melt entering the groove, so that the fluidity of the melt in the casing 1 is effectively ensured, the adhesion of the melt during film forming is effectively avoided, and the forming effect and the forming efficiency are improved.

Referring to fig. 6, a plurality of flow channel adjusting grooves 601 are formed at the lower end of the flow channel adjusting plate 6, and the flow channel adjusting grooves 601 are matched with the flow channel grooves. The flow channel adjusting plate 6 adjusts the melt flowing into the flow channel adjusting groove 601 through the flow channel adjusting groove, changes the section shape of the thickness of the melt, and enables the membrane equalizing component 5 to effectively press the melt into a thin membrane with a specified thickness.

Referring to fig. 9, the electromagnetic adjusting assembly 4 includes an electromagnetic box 401, the electromagnetic box 401 is fixedly connected to both left and right ends of the leading-out cover 2, a bottom plate 402 is fixedly connected to a lower inner wall of the electromagnetic box 401, an electromagnetic coil 403 is installed at an upper end of the bottom plate 402, a magnetic conductive block 404 located on an upper side of the electromagnetic coil 403 is fixedly connected to an inside of the electromagnetic box 401, a loop bar 406 is fixedly connected to an upper end of the magnetic conductive block 404, a guide rod 405 is slidably connected to an upper end of the loop bar 406, an attracting iron block 408 is fixedly connected to an upper end of the guide rod 405, and. The electromagnet coil 403 is energized to generate magnetism, so that the magnetic conduction block 404 adsorbs the attraction iron block 408, the attraction iron block 408 slides under the guidance of the guide rod 405 and the loop bar 406, and the position of the flow channel adjusting plate 6 is adjusted through the adjusting support plate 602, so that the flow channel adjusting groove 601 is matched with the flow channel groove, and the outflow section of the solution is adjusted.

Referring to fig. 9, the extraction hood 2 and the electromagnetic box 401 are both provided with long chutes matched with the adjusting support plates 602, and the adjusting support plates 602 extend into the electromagnetic box 401 through the long chutes and are fixedly connected with the attraction iron block 408.

Referring to fig. 9, the lower end of the electromagnetic coil 403 is fixedly connected with a conductive wire, and the lower end of the conductive wire extends to the outside of the electromagnetic box 401 and is electrically connected with the current regulator. The current in the electromagnetic coil 403 is controlled through the current regulator, so that the magnetic force generated by the electromagnetic coil 403 is controlled, the attraction force of the attraction iron block 408 is regulated, the position of the flow channel regulating plate 6 is effectively and accurately controlled, the regulating precision is effectively improved, the automation degree of the forming device is improved, and the input of manpower is reduced.

Referring to fig. 6, the film equalizing assembly 5 includes a film equalizing rotating rod 501, the leading-out cover 2 is rotatably connected with the film equalizing rotating rod 501 located at the front side of the transition gear 7, the outer end of the film equalizing rotating rod 501 is fixedly connected with a film equalizing fin plate 502, and the left and right ends of the film equalizing rotating rod 501 are fixedly connected with a film equalizing gear 503 engaged with the transition gear 7. The transition gear 7 transmits the movement of the flow channel adjusting plate 6 through the film equalizing gear 503, so that when the flow channel adjusting plate 6 moves downwards, the film equalizing rotating rod 501 drives the film equalizing fin plate 502 to rotate downwards, the film equalizing assembly 5 is synchronous with the flow channel adjusting plate 6, the flow of a solution is effectively matched with the thickness of a formed film, the uniformity of the thickness of the formed film is improved, and the quality of the film is improved.

Referring to fig. 1-10, the method of use: according to the thickness of the film to be produced, the current passing through the electromagnetic coil 403 is controlled by a current regulator, and the magnetic force generated by the electromagnetic coil 403 is adjusted to move the attraction iron block 408 in the electromagnetic box 401: when the magnetic force of the electromagnetic coil 403 is increased, the magnetic conduction block 404 is used for performing magnetic adsorption on the attraction iron block 408, the attraction iron block 408 drives the adjusting support plate 602 to move downwards under the guidance of the guide rod 405 and the loop bar 406 and compresses the return spring 407, so that the outlet volume of the runner groove is reduced by the runner adjusting plate 6 through the runner adjusting groove 601, the transfer rack 603 drives the transition gear 7 to rotate, the membrane homogenizing gear 503 drives the membrane homogenizing rotating rod 501 to rotate, the membrane homogenizing fin plate 502 rotates downwards, the membrane forming gap is reduced, and the membrane forming thickness is reduced; when the magnetic force of the electromagnetic coil 403 is reduced, the reset spring 407 generates reset deformation to drive the attraction iron block 408 to move upwards, so that the adjusting support plate 602 drives the flow channel adjusting plate 6 to move upwards, the flow channel adjusting plate 6 increases the outlet volume of the flow channel through the flow channel adjusting groove 601, the transmission rack 603 drives the transition gear 7 to rotate, the film homogenizing gear 503 drives the film homogenizing rotating rod 501 to rotate, the film homogenizing fin plate 502 rotates upwards, the film forming gap is increased, and the film forming thickness is increased; the current regulator keeps the current in the electromagnetic coil 403 unchanged, locks the positions of the membrane equalizing gear 503 and the flow passage adjusting plate 6 and keeps the stability of the membrane forming thickness; the extruder extrudes the melt after hot melting to a runner groove between the lower runner plate 101 and the upper runner plate 102, and the hot melting block 3 works to keep the temperature of the shell 1 consistent with the melt, thereby effectively keeping the fluidity of the melt. The flow channel adjusting plate 6 is controlled by controlling the current in the electromagnetic adjusting assembly 4, the membrane equalizing assembly 5 and the flow channel adjusting plate 6 are synchronously adjusted through the transition gear 7, the membrane thickness is effectively changed, the adjusting precision is improved, the membrane equalizing assembly 5 and the flow channel adjusting plate 6 are synchronous, the outflow of a solution is matched with the membrane forming thickness, the uniformity of the membrane is effectively increased, and the quality of the gelatin composite geomembrane is improved.

Example 2:

referring to fig. 1 to 10, wherein the same or corresponding components as those in embodiment 1 are designated by the same reference numerals as those in embodiment 1, only the points different from embodiment 1 will be described below for the sake of convenience. This example 2 differs from example 1 in that: referring to fig. 2 and 10, a process for producing a gelatin composite geomembrane includes the following steps:

the vacuum feeding effectively reduces the labor intensity, reduces the raw material waste, effectively avoids the raw material from being polluted, and ensures that the dust generated by the material in the feeding pipe in the conveying process can not fly outwards.

according to the deviation of the measured actual value and the set value, the weight metering system can automatically adjust the rotating speed of the screw of the extruder, so that the extrusion amount is correspondingly increased or decreased to control the thickness of the film.

the gelatin composite geomembrane production line comprises the following components in terms of film width: 1000 mm-6000 mm, the configuration of the extruder can be divided into three layers.

(1) Charging barrel

The plastification and pressing of the plastic takes place in this process. The exterior of the device is provided with a subarea heating and cooling device which respectively adopts resistance heating and air cooling. The purpose of heating is to melt the plastic by heating, and the cooling is to prevent the plastic from overheating or to cool it rapidly when the vehicle is stopped, so as to prevent the resin from degrading or decomposing. The external friction generated by the barrel and the plastic provides heat to the plastic, and the flow of the plastic in the barrel is also determined by the magnitude of the friction between the plastic and the barrel.

(2) Screw rod

The plastic in the barrel can only move forward by its rotation, and pressurized and partially heated.

The screw is divided into three sections:

feeding section (charging section)

The function is as follows: and (4) conveying the raw materials. The material cylinder is grooved, the surface smoothness of the screw is improved, water is introduced into the center of the screw for cooling, and the conveying capacity of the screw can be improved.

Melting section (compression section)

The function is as follows: shearing of the melt generates shear heat. The screw groove is gradually reduced, the quality of the product can be improved, and the heating and melting of the plastic are facilitated. The degree of reduction is measured by the compression ratio.

Metering section (homogenizing section)

The function is as follows: further plasticising the molten resin to homogeneity. And the material flow uniformly flows out from the flow passage of the machine head at a fixed quantity and a fixed pressure. The mixing device can improve the uniformity and obtain low-temperature extrusion.

s5, forming a film by a forming device: the solution enters a runner groove in the shell, the heights of the membrane equalizing assembly and the runner adjusting plate are controlled by controlling the current of the electromagnetic adjusting assembly 4, and the thickness of the formed membrane is adjusted;

(1) needle type electrostatic film end positioner

The needle electrostatic film end positioner uses electrostatic charge to generate acting force to stick the film to the cold roller. Edge positioning of the molten polymer is a difficult skill to master because the molten polymer necks down and is drawn down by the chill roll. Necking can be minimized by the film edge locating means, resulting in a stable film edge and an effective film width that can be maximized.

(2) Double-cavity vacuum air suction cover

A. The suction hood serves as a means for reducing film flutter to increase production line speed.

B. The function of the vacuum chamber is to suck out entrained air and stabilize the melt film.

(3) Cleaning press roller

A. The speed of the film and the speed of the cold roll are synchronous, and the film is prevented from slipping on the cold roll.

B. The precipitate on the chill roll was taken up with the film by adjusting the pressure.

(4) Double-cold-roll casting system

A. The first cold roll is subjected to a special surface passivation treatment which can ensure that the sticky film and the slip agent are smoothly separated from the roll surface. It can be used in conjunction with suction hood to remove air possibly entrained between the surface of the cold roll and the film.

B. The second chill roll is typically smaller in diameter and the surface is treated with a high degree of polishing to further cool the solidified film.

so that the film can enhance the adhesion property of the surface in the subsequent composite film-forming process.

S10, rolling a thin film: winding the film by using a film winding machine;

(1) swing amplitude mechanism

Before winding, the film web is laterally pivoted in order to distribute possible deviations in film thickness evenly over the film roll.

(2) Static eliminator

Eliminating static electricity on the film.

(3) Tension detection roller

The tension of the film is detected by pressure sensors below bearings at two ends of the tension roller, and the detected signal controls the rotating speed of a winding motor through an electronic circuit so as to ensure proper winding tension.

(4) Tracking roller

The main effect is pressed the film on the rolling core, carries out contact rolling or little clearance rolling to on rolling up the core rapidly with smooth film, realize leveling the purpose of rolling.

(5) Automatic film winder

A. The central winding is adopted, and the two modes of contact and clearance are adopted.

B. The winding roller is driven by a winding motor, and a winding speed control system is networked with a cold roller driving system, is synchronous with the cold roller speed and is controlled by the feedback of the tension controller.

S11, aging treatment, slitting and rewinding: carrying out aging treatment on the wound film for 24 hours, and then slitting and rewinding by using a rewinding machine; the function is to fully cool to prevent the film from deforming and eliminate the internal stress of the film.

The film material is: high Density Polyethylene (HDPE), low pressure polyethylene (LDPE), Chlorinated Polyethylene (CPE), EVA (ethylene copolymers), PVC, and the like. The types of geotextiles are: needle-punched short fiber geotextile, woven geotextile, non-woven geotextile, glass fiber net, etc.

Example 3:

referring to fig. 1 to 10, wherein the same or corresponding components as those in embodiment 1 are designated by the same reference numerals as those in embodiment 1, only the points different from embodiment 1 will be described below for the sake of convenience. This example 3 differs from example 1 in that: referring to fig. 2 and 10, in step S12, a geotextile is applied to the upper and lower end surfaces of the membrane by calendering and hot-melt coating to obtain a two-cloth one-film gelatin composite geomembrane.

Referring to fig. 2 and 10, in step S12, the geotextile is coated on the upper and lower end surfaces of the film by calendering and hot-melt coating, the film is further coated on the outer end of the geotextile, the geotextile is coated on the film which is subsequently coated, and the cycle is repeated to obtain the multi-cloth multi-film type gelatin composite geomembrane. By adopting different compounding modes, the gelatin composite geomembrane with different specification forms can be obtained, the production diversity of enterprises is effectively improved, the production cost of the enterprises is reduced, and the economic benefit of producing the gelatin composite geomembrane is improved.

Claims

1. The utility model provides a forming device is used in production of compound geomembrane of gelatin, includes casing (1), its characterized in that: the front end of the shell (1) is fixedly connected with a leading-out cover (2), the rear end of the leading-out cover (2) is connected with a flow channel adjusting plate (6) matched with the shell (1) in a sliding mode, the front end of the leading-out cover (2) is provided with a membrane equalizing assembly (5), and the left end and the right end of the leading-out cover (2) are connected with electromagnetic adjusting assemblies (4);

the utility model discloses a set of electromagnetic regulation assembly, including runner regulating plate (6), both ends equal fixedly connected with regulation extension board (602) about runner regulating plate (6), regulation extension board (602) outer end extends to and draws forth the cover (2) outside to with electromagnetic regulation subassembly (4) phase-match, regulation extension board (602) front end fixedly connected with transmission rack (603), draw forth about cover (2) both inner walls all to rotate and be connected with transition gear (7) with transmission rack (603) engaged with, and transition gear (7) and homomembrane subassembly (5) phase-match.

2. The forming device for producing the gelatin composite geomembrane according to claim 1, wherein: the improved hot melt adhesive machine is characterized in that a lower flow plate (101) is fixedly connected to the upper end of the machine shell (1), an upper flow plate (102) located on the upper side of the lower flow plate (101) is fixedly connected to the upper end of the machine shell (1), flow grooves matched with each other are formed in the lower flow plate (101) and the upper flow plate (102), and a hot melt block (3) located on the upper side of the upper flow plate (102) is fixedly mounted to the upper end of the machine shell (1).

3. The forming device for producing the gelatin composite geomembrane as claimed in claim 2, wherein: a plurality of runner adjustment grooves (601) are formed in the lower end of the runner adjustment plate (6), and the runner adjustment grooves (601) are matched with the runner grooves.

4. The forming device for producing the gelatin composite geomembrane according to claim 1, wherein: electromagnetic adjusting element (4) is including electromagnetism box (401), draw forth the equal fixedly connected with electromagnetism box (401) in both ends about cover (2), inner wall fixedly connected with bottom plate (402) under electromagnetism box (401), solenoid (403) are installed to bottom plate (402) upper end, inside fixedly connected with of electromagnetism box (401) is located magnetic conduction piece (404) of solenoid (403) upside, magnetic conduction piece (404) upper end fixedly connected with loop bar (406), loop bar (406) upper end sliding connection has guide bar (405), guide bar (405) upper end fixedly connected with attracts iron plate (408), and guide bar (405) outer end cover is equipped with reset spring (407).

5. The forming device for producing the gelatin composite geomembrane according to claim 4, wherein: the leading-out cover (2) and the electromagnetic box (401) are both provided with long sliding grooves matched with the adjusting support plates (602), and the adjusting support plates (602) extend into the electromagnetic box (401) through the long sliding grooves and are fixedly connected with the attraction iron block (408).

6. The forming device for producing the gelatin composite geomembrane according to claim 4, wherein: the lower end of the electromagnetic coil (403) is fixedly connected with a conductive wire, and the lower end of the conductive wire extends to the outer side of the electromagnetic box (401) and is electrically connected with a current regulator.

7. The molding device and the process thereof for producing the gelatin composite geomembrane as claimed in claim 1, wherein: the membrane equalizing assembly (5) comprises a membrane equalizing rotating rod (501), the membrane equalizing rotating rod (501) located on the front side of the transition gear (7) is rotationally connected to the leading-out cover (2), a membrane equalizing fin plate (502) is fixedly connected to the outer end of the membrane equalizing rotating rod (501), and a membrane equalizing gear (503) meshed with the transition gear (7) is fixedly connected to the left end and the right end of the membrane equalizing rotating rod (501).

8. A production process of a gelatin composite geomembrane is characterized by comprising the following steps: the method comprises the following steps:

s10, rolling a thin film: winding the film by using a film winding machine;

s12, composite film forming: and (3) coating the geotextile on the surface of the membrane in a calendaring and hot-melt coating mode to prepare the cloth-membrane type gelatin composite geomembrane.

9. The production process of the gelatin composite geomembrane as claimed in claim 8, wherein the production process comprises the following steps: and S12, coating the geotextile on the upper end surface and the lower end surface of the film in a calendaring and hot-melt coating mode to obtain the two-cloth one-film type gelatin composite geomembrane.

10. The production process of the gelatin composite geomembrane as claimed in claim 8, wherein the production process comprises the following steps: and step S12, coating the geotextile on the upper end face and the lower end face of the film in a calendaring and hot melting coating mode, continuously coating the film on the outer end of the geotextile, coating the geotextile on the film which is added later, and circulating the steps to prepare the multi-cloth multi-film type gelatin composite geomembrane.