CN220946297U - Tape casting composite film forming device - Google Patents

Abstract

The utility model provides a tape casting composite film forming device which comprises a rubber roller, a composite roller, a die head and a guide roller, wherein the length direction of the rubber roller, the length direction of the composite roller and the length direction of the guide roller are parallel to each other, the rubber roller is arranged on one side of the composite roller, a gap is arranged between the rubber roller and the composite roller, the die head is arranged above the gap, the outlet of the die head is downward, the guide roller is arranged above the composite roller, the guide roller is connected with the composite roller through a Teflon circulating belt, and the Teflon circulating belt can perform circulating motion between the composite roller and the guide roller. Therefore, the problem of roll sticking of the high-viscosity melt in the casting and compounding process can be solved through the device, operators do not need to stop the process, and the efficiency of continuous industrial production is greatly improved.

Description

Tape casting composite film forming device

Technical Field

The utility model belongs to the technical field of film coating production, and particularly relates to a tape-casting composite film forming device.

Background

In the process of carrying out online casting compounding on the high-viscosity melt, the problem of sticking to the roller is extremely easy to occur because the adhesion between the high-viscosity melt (such as TPU in a molten state) and the roller is large, and the temperature of the surface of the roller is difficult to control accurately. Operators often need to stop the machine to clean the rollers and then continue production, which is very unfavorable for continuous industrial production.

The existing method for solving the sticking problem mainly comprises the following steps: (1) Selecting a grinding roller as a roller, and performing anti-sticking treatment on the surface of the grinding roller, such as coating a layer of Teflon coating on the surface of the roller; (2) Cooling and controlling the temperature of the roller, utilizing a runner in the roller to promote cooling water to circulate in the roller, enabling the temperature of the roller to reach a set temperature, and conducting heat conduction cooling on the high-viscosity melt attached to the outer wall of the roller; (3) And adding an auxiliary agent into the high-viscosity melt, wherein the auxiliary agent can be separated out from the high-viscosity melt in the casting compounding process, and an auxiliary agent isolation layer can be formed between the high-viscosity melt and the roller, so that the adhesive force between the high-viscosity melt and the roller is reduced. The main problems of the method (1) are: the adhesive film layer formed by the Teflon coating can collide with the grinding roller in an extrusion way, and the adhesive film layer formed by the Teflon coating is easy to fall off along with the continuous increase of the casting compounding time; the main problems of the method (2) are: when the high-viscosity melt just contacts the roller, the temperature of the roller surface is higher due to higher temperature of the high-viscosity melt, the temperature of the roller surface gradually drops under the cooling effect of cooling water in the roller, but the film layer formed by the high-viscosity melt and the roller have large wrap angle and large contact area, the temperature of the roller surface is higher and higher along with continuous increase of casting compounding time, operators cannot accurately regulate the temperature of the roller surface, and the temperature of different areas of the roller surface has larger difference, so that the high-viscosity melt is seriously stuck to the roller; the main problems of the method (3) are: the precipitated auxiliary agent can influence the performance of the film layer formed by the finally obtained high-viscosity melt.

In view of the foregoing, there is a need for an apparatus that solves the problem of sticking to rollers in the high viscosity melt in-line casting compounding process.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems in the related art to some extent. To this end, the present utility model is directed to a casting composite film forming apparatus. Therefore, the problem of roll sticking of the high-viscosity melt in the casting and compounding process can be solved through the device, operators do not need to stop the process, and the efficiency of continuous industrial production is greatly improved.

The utility model provides a tape casting composite film forming device which comprises a rubber roller, a composite roller, a die head and a guide roller, wherein the length direction of the rubber roller, the length direction of the composite roller and the length direction of the guide roller are parallel to each other, the rubber roller is arranged on one side of the composite roller, a gap is arranged between the rubber roller and the composite roller, the die head is arranged above the gap, the die head outlet is downward, the guide roller is arranged above the composite roller, the guide roller is connected with the composite roller through a Teflon circulating belt, and the Teflon circulating belt can perform circulating motion between the composite roller and the guide roller.

According to the tape casting composite film forming device provided by the embodiment of the utility model, the high-temperature melt extruded by the die head and the substrate to be compounded pulled by the rubber roller are compounded at the gap between the rubber roller and the composite roller, the movement directions of the composite roller and the rubber roller are opposite, and the composite roller and the rubber roller can compress the high-temperature melt and the substrate to be compounded to obtain the composite film layer; through setting up the Teflon circulation area and carrying out the circulation motion between compound roller and deflector roll, the Teflon circulation area on compound roller surface can be extruded through the die head to high temperature melt, and high temperature melt and wait to compound the substrate and can compound at the Teflon circulation area on compound roller surface, and the temperature of Teflon circulation area can be risen rapidly to high temperature melt, and compound rete and Teflon circulation area separation later, and Teflon circulation area can be in keeping away from the place of compound roller and cooling to the temperature of Teflon circulation area and the surface temperature of compound roller have been accurately controlled. Therefore, the problem of roll sticking of the high-viscosity melt in the casting and compounding process can be solved through the device, operators do not need to stop the process, and the efficiency of continuous industrial production is greatly improved.

In addition, the casting composite film forming apparatus according to the above embodiment of the present utility model may further have the following additional technical features:

In some embodiments of the utility model, the casting composite film forming apparatus further comprises a cooling roller, a length direction of the cooling roller is parallel to a length direction of the composite roller, and the cooling roller is disposed at a side of the composite roller away from the rubber roller.

In some embodiments of the present utility model, the casting composite film forming apparatus further includes a wind-up roller, a length direction of the wind-up roller is parallel to a length direction of the composite roller, and the wind-up roller is disposed at a side of the cooling roller away from the composite roller.

In some embodiments of the utility model, the cast composite film forming apparatus further comprises a substrate unwind roller disposed on a side of the glue roller remote from the composite roller.

In some embodiments of the present utility model, a condensed water flow channel is arranged in the rubber roller, and an inlet and an outlet of the condensed water flow channel are respectively arranged on the surfaces of two ends of the rubber roller.

In some embodiments of the present utility model, a condensed water flow channel is arranged in the composite roller, and inlets and outlets of the condensed water flow channel are respectively arranged on the surfaces of two ends of the composite roller.

In some embodiments of the present utility model, a condensed water flow channel is arranged in the cooling roller, and inlets and outlets of the condensed water flow channel are respectively arranged on the surfaces of two ends of the cooling roller.

In some embodiments of the present utility model, a condensed water flow channel is arranged in the guide roller, and inlets and outlets of the condensed water flow channel are respectively arranged on the surfaces of two ends of the guide roller.

In some embodiments of the utility model, the composite roll is one of a steel roll and a scrub roll.

In some embodiments of the utility model, the linear speeds at which the rubber roll, the composite roll, the guide roll, and the chill roll rotate are the same.

In some embodiments of the utility model, the guide roller is provided with flanges at both ends.

In some embodiments of the utility model, the teflon circulation band comprises a PTFE iron fluorine Long Chun film tape and a polytetrafluoroethylene teflon film tape.

In some embodiments of the utility model, the cast composite film forming apparatus further comprises a motor electrically connected to the guide roller and/or the composite roller.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a casting composite film forming apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic view showing the structure of a casting composite film forming apparatus according to another embodiment of the present utility model;

Fig. 3 is a schematic view of the structure of a guide roller according to an embodiment of the present utility model.

Reference numerals:

100-rubber roller; 200-compounding rollers; 300-die head; 400-guide roller; 500-teflon endless belt; 600-cooling roller; 700-a wind-up roll; 800-substrate unwind roll.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, terms such as "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly attached, detachably attached, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

The utility model provides a tape casting composite film forming device. According to an embodiment of the present utility model, referring to fig. 1 and 2, the casting composite film forming apparatus includes a rubber roll 100, a composite roll 200, a die 300, and a guide roll 400, wherein the length direction of the rubber roll 100, the length direction of the composite roll 200, and the length direction of the guide roll 400 are parallel to each other, the rubber roll 100 is disposed at one side of the composite roll 200, a gap is provided between the rubber roll 100 and the composite roll 200, the die 300 is disposed above the gap with an outlet of the die 300 downward, the guide roll 400 is disposed above the composite roll 200, the guide roll 400 is connected by a teflon endless belt 500 and the composite roll 200, and the teflon endless belt 500 is circulated between the composite roll 200 and the guide roll 400. Therefore, the problem of roll sticking of the high-viscosity melt in the casting and compounding process can be solved through the device, operators do not need to stop the process, and the efficiency of continuous industrial production is greatly improved.

The following describes the technical effects that the casting composite film forming device can achieve in detail:

In the process of carrying out curtain coating compounding film formation on the high-viscosity melt, firstly, the high-temperature melt extruded by the die head 300 can be extruded onto the Teflon endless belt 500 on the surface of the compounding roller 200, the substrate to be compounded can reach the vicinity of a gap between the rubber roller 100 and the compounding roller 200 through the traction of the rubber roller 100, then, the high-temperature melt on the Teflon endless belt 500 and the substrate to be compounded pulled by the rubber roller 100 can be compounded at the gap, the movement directions of the compounding roller 200 and the rubber roller 100 are opposite, the compounding roller 200 and the rubber roller 100 can compress the high-temperature melt and the substrate to be compounded, so that a compound film layer is obtained, the compounding process of the high-temperature melt and the substrate to be compounded is completed on the Teflon endless belt 500 on the surface of the compounding roller 200, the high-temperature melt can not be contacted with the drum surface of the compounding roller 200, the temperature of the Teflon endless belt 500 can be rapidly increased, the temperature of the compounding roller 200 can not be greatly increased, finally, the Teflon endless belt 500 on the surface of the compounding roller 200 moves towards the guide roller 400, the Teflon endless belt 500 moves in the direction, the Teflon endless belt 500 is cooled down in the direction, and the Teflon endless belt 500 is cooled down by the Teflon endless belt 500, and the Teflon endless belt 500 is cooled down, and the Teflon endless belt is cooled down.

Further, methods of controlling the rotation of the guide roller 400 include, but are not limited to: (1) The motor is electrically connected with the guide roller 400, the guide roller 400 is controlled by the motor to rotate, and the Teflon circulating belt 500 is finally controlled to perform circulating motion between the composite roller 200 and the guide roller 400; (2) The motor is electrically connected with the composite roller 200, the composite roller 200 is controlled to rotate through the motor, the guide roller 400 is further controlled to rotate, and the Teflon circulating belt 500 is finally controlled to perform circulating motion between the composite roller 200 and the guide roller 400; (3) When the rubber roll 100 rotates, the rubber roll 100 drives the composite roll 200 to rotate, the composite roll 200 drives the guide roll 400 to rotate, and finally the Teflon circulating belt 500 is controlled to circularly move between the composite roll 200 and the guide roll 400.

It should be noted that: in the present utility model, referring to fig. 1 to 3, all of the rolls have a length direction of X direction, and a circular cross section of the rolls is formed on a plane formed by Y direction and Z direction.

According to an embodiment of the present utility model, referring to fig. 1 and 2, a condensate flow channel is provided in the rubber roll 100, and inlets and outlets of the condensate flow channel are respectively provided on the surfaces of the two ends of the rubber roll 100, so that condensate is supplied to the rubber roll 100 through the condensate flow channel inlets of the surfaces of the two ends of the rubber roll 100, which is beneficial to reducing the surface temperature of the rubber roll 100 and further beneficial to casting composite film formation.

In an embodiment of the present utility model, referring to fig. 1 and 2, the above-mentioned composite roll 200 may be selected from one of a sand roll and a steel roll, preferably a steel roll. In the prior art, in order to avoid the sticking problem, the composite roller 200 is generally a frosted roller, but the composite roller 200 of the utility model can be a steel roller, the steel roller has lower price, the composite roller 200 of the utility model basically does not need to be replaced, only the Teflon circulating belt 500 needs to be replaced, and the cost of casting composite film is greatly reduced.

According to still another embodiment of the present utility model, referring to fig. 1 and 2, the composite roller 200 is provided with a condensed water flow channel, and inlets and outlets of the condensed water flow channel are respectively provided on the surfaces of both ends of the composite roller 200, so that condensed water is supplied to the composite roller 200 through the condensed water flow channel inlets of the surfaces of both ends of the composite roller 200, thereby further controlling the temperature of the composite roller 200, and further being beneficial to solving the problem of sticking to the composite roller during the casting and compounding process of the high-viscosity melt.

According to still another embodiment of the present utility model, referring to fig. 1 and 2, the temperature of the above-mentioned composite roll 200 is 20-90 ℃, and compared with the prior art, the temperature of the composite roll 200 of the present utility model is selected in a wider range, which is further advantageous for casting composite film formation.

According to still another embodiment of the present utility model, referring to fig. 3, the two ends of the guide roller 400 are provided with flanges, and the flanges can control the position of the teflon endless belt 500 during the rotation movement of the teflon endless belt 500 to prevent the teflon endless belt 500 from deviating, and at the same time, the flanges can avoid the existence of thick edges of the high-viscosity melt, which results in a smaller amount of the high-viscosity melt in the middle region of the composite film and thus in a problem that the middle region of the composite film is not tightly pressed. It should be noted that: the dimensions of the ribs are not particularly limited and can be set by a person skilled in the art according to the actual circumstances.

According to still another embodiment of the present utility model, referring to fig. 1 and 2, the guide roller 400 is provided therein with condensed water flow channels, and inlets and outlets of the condensed water flow channels are respectively provided at both ends of the guide roller 400, whereby condensed water is supplied to the guide roller 400 through condensed water flow channel inlets of both ends of the guide roller 400, so that the temperature of the guide roller 400 can be reduced, the guide roller 400 can cool the teflon circulation belt 500 when the teflon circulation belt 500 passes over the guide roller 400, and it is further ensured that the teflon circulation belt 500 is cooled when the teflon circulation belt 500 is circulated again to the composite roller 200.

In the embodiment of the present utility model, the specific kind of the teflon circulation belt 500 is not particularly limited, and it may be directly commercially available, and as a preferable embodiment, the teflon circulation belt 500 includes, but is not limited to, a PTFE teflon Long Chun film tape and a teflon film tape.

According to still another embodiment of the present utility model, various patterns may be provided on the teflon endless belt 500, the patterns are not particularly limited, and the compounding process of the high temperature melt and the substrate to be compounded is completed on the teflon endless belt 500 on the surface of the compounding roll 200, whereby a patterned composite film layer may be obtained.

In the embodiment of the present utility model, referring to fig. 1 and 2, the wrap angle between the teflon endless belt 500 and the compound roll 200 is not particularly limited, and one skilled in the art may autonomously select according to the viscosity, temperature, etc. of the high viscosity melt.

In the embodiment of the present utility model, the length of the teflon circulation belt 500 is not particularly limited, and one skilled in the art may autonomously select according to the viscosity, temperature, etc. of the high viscosity melt.

According to still another embodiment of the present utility model, referring to fig. 1 and 2, the width of the teflon endless belt 500 is smaller than the width of the removed thick edge of the composite film layer, and the problem of thick edge can be avoided because the compounding process of the high viscosity melt and the substrate to be compounded is completed on the teflon endless belt 500 on the surface of the compounding roll 200.

According to still another embodiment of the present utility model, referring to fig. 2, the casting composite film forming apparatus further includes a cooling roller 600, the length direction of the cooling roller 600 is parallel to the length direction of the composite roller 200, the cooling roller 600 is disposed at a side of the composite roller 200 away from the glue roller 100, and the composite film output through the composite roller 200 may further have a higher temperature, so that the temperature of the composite film can be quickly reduced by the cooling roller 600, and thus a composite film with a lower temperature can be quickly obtained.

According to still another embodiment of the present utility model, referring to fig. 2, a condensate flow channel is provided in the cooling roller 600, and inlets and outlets of the condensate flow channel are respectively provided on the surfaces of the two ends of the cooling roller 600, so that condensate is supplied to the cooling roller 600 through the condensate flow channel inlets of the surfaces of the two ends of the cooling roller 600, thereby more rapidly completing the cooling of the composite film and realizing the collection of the composite film.

According to still another embodiment of the present utility model, referring to fig. 1 and 2, the casting composite film forming apparatus further includes a winding roller 700, the length direction of the winding roller 700 is parallel to the length direction of the composite roller 200, and the winding roller 700 is disposed at a side of the cooling roller 600 away from the composite roller 200, whereby the composite film outputted through the composite roller 200 can be collected by the winding roller 700, thereby obtaining a desired composite film.

According to still another embodiment of the present utility model, referring to fig. 1 and 2, the casting composite film forming apparatus further includes a substrate unreeling roller 800, and the substrate unreeling roller 800 is disposed at a side of the glue roller 100 away from the composite roller 200, so that the substrate to be compounded may be discharged through the substrate unreeling roller 800, and the substrate to be compounded may be pulled to the vicinity of the first gap by the glue roller 100, so as to compound the melt and the substrate to be compounded.

In an embodiment of the present utility model, the substrate to be compounded includes, but is not limited to, a base fabric.

According to still another embodiment of the present utility model, referring to fig. 1 and 2, the linear speeds of the rotation of the rubber roll 100, the composite roll 200, the guide roll 400 and the cooling roll 600 are the same, thereby further facilitating the casting composite film forming process.

In the embodiment of the present utility model, referring to fig. 1 and 2, the sizes of the rubber roll 100, the composite roll 200, the cooling roll 600, the wind-up roll 700, the substrate unreeling roll 800, and the guide roll 400 are not particularly limited, and those skilled in the art can select an appropriate size according to the actual situation.

In embodiments of the present utility model, the high viscosity melt includes, but is not limited to, a TPU melt.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Example 1

The TPU film layer is prepared by adopting a tape casting composite film forming device, and the specific steps are as follows:

(1) Melting and plasticizing TPU granules by adopting a screw extruder, extruding TPU melt to a gap between a rubber roller and a composite roller by adopting a die head, simultaneously unwinding a base material from the roller to release base cloth, and compounding the TPU melt and the base cloth on a PTFE (polytetrafluoroethylene) iron fluorine Long Chun film adhesive tape on the surface of the composite roller by the traction of the rubber roller to the gap between the rubber roller and the composite roller to obtain a TPU composite film layer;

(2) And separating the TPU composite film layer from the PTFE iron fluorine Long Chun film adhesive tape on the surface of the composite roller, moving the PTFE iron fluorine Long Chun film adhesive tape towards the direction of the guide roller, and after the TPU composite film layer is conveyed to the cooling roller for cooling, collecting the TPU composite film layer through the winding roller, wherein the rubber roller, the composite roller, the cooling roller, the winding roller, the substrate unreeling roller and the guide roller are all provided with condensate water cooling, and the rubber roller, the composite roller, the cooling roller, the winding roller, the substrate unreeling roller and the guide roller are all steel rollers.

Comparative example 1

The other casting composite film forming device is adopted to prepare the TPU film layer in the comparative example, the casting composite film forming device of the comparative example is not provided with a guide roller and a PTFE iron fluorine Long Chun film adhesive tape, and the rest positions are the same as those of the casting composite film forming device of the example 1, and the specific preparation steps are as follows:

(1) Melting and plasticizing TPU granules by adopting a screw extruder, extruding TPU melt to a gap between a rubber roller and a composite roller by adopting a die head, simultaneously unwinding a base material by using a base material unwinding roller to release base cloth, and compounding the TPU melt and the base cloth on the surface of the composite roller by drawing the base cloth to the gap between the rubber roller and the composite roller through the rubber roller so as to obtain a TPU composite film layer;

(2) TPU complex film layer and compound roller separation, TPU complex film layer is transmitted to the chill roll cooling back, and is collected the TPU complex film layer through the wind-up roll, wherein, above-mentioned rubber roll, above-mentioned compound roller, above-mentioned chill roll, above-mentioned wind-up roll and above-mentioned substrate unreel the roller all are provided with the condensate water cooling, above-mentioned rubber roll, above-mentioned compound roller, above-mentioned chill roll, above-mentioned wind-up roll, above-mentioned substrate unreel roller and above-mentioned deflector roll are the steel roll.

Through observation of operators, the TPU composite film layer prepared in the embodiment 1 has no thick edge, no roller sticking phenomenon occurs in the process of preparing the TPU composite film layer for many times, the composite roller is not replaced, and the operators do not stop; the TPU composite film layer prepared in the comparative example 1 has serious thick edge condition, the phenomenon of sticking to rollers occurs repeatedly in the process of preparing the TPU composite film layer for many times, and an operator needs to stop and replace the composite rollers for many times, so that the problem of sticking to rollers in the casting composite process of high-viscosity melt can be solved by the casting composite film forming device, the operator does not need to stop treatment, and the efficiency of continuous industrial production is greatly improved.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. The utility model provides a curtain coating composite film forming device, its characterized in that includes rubber roll, compound roller, die head and deflector roll, the length direction of rubber roll the length direction of compound roller with the length direction of deflector roll is all parallel to each other, the rubber roll sets up one side of compound roller, the rubber roll with be equipped with the gap between the compound roller, the die head sets up the top and the die head export in gap are decurrent, the deflector roll sets up the top of compound roller, the deflector roll passes through the Teflon circulating belt with the compound roller is connected, just the Teflon circulating belt can carry out cyclic motion between compound roller with the deflector roll.

2. The casting composite film forming apparatus according to claim 1, further comprising a cooling roller, a longitudinal direction of the cooling roller being parallel to a longitudinal direction of the composite roller, the cooling roller being provided on a side of the composite roller remote from the rubber roller.

3. The casting composite film forming apparatus according to claim 2, further comprising a take-up roller, a length direction of the take-up roller being parallel to a length direction of the composite roller, the take-up roller being provided on a side of the cooling roller away from the composite roller.

4. The casting composite film forming apparatus according to claim 1, further comprising a substrate unreeling roller provided on a side of the rubber roll remote from the composite roller.

5. The casting composite film forming device according to claim 2, wherein condensed water flow passages are arranged in the rubber roller, and inlets and outlets of the condensed water flow passages are respectively arranged on the surfaces of two ends of the rubber roller;

And/or a condensed water flow channel is arranged in the composite roller, and the inlet and outlet of the condensed water flow channel are respectively arranged on the surfaces of the two ends of the composite roller;

And/or a condensed water flow channel is arranged in the cooling roller, and the inlet and outlet of the condensed water flow channel are respectively arranged on the surfaces of the two ends of the cooling roller;

And/or the guide roller is internally provided with a condensed water flow passage, and the inlet and outlet of the condensed water flow passage are respectively arranged on the surfaces of the two ends of the guide roller.

6. The casting composite film forming apparatus according to any one of claims 1 to 4, wherein the composite roller is selected from one of a steel roller and a scrub roller.

7. The casting composite film forming apparatus according to claim 2, wherein linear speeds at which the rubber roll, the composite roll, the guide roll, and the cooling roll rotate are the same.

8. The casting composite film forming apparatus according to any one of claims 1 to 4, wherein both ends of the guide roller are provided with flanges.

9. The cast composite film forming apparatus according to any one of claims 1 to 4, wherein the teflon endless belt includes a PTFE iron fluorine Long Chun film tape and a polytetrafluoroethylene teflon film tape.

10. The casting composite film forming apparatus according to any one of claims 1 to 4, further comprising a motor electrically connected to the guide roller and/or the composite roller.