CN215921080U - Wide film forming equipment - Google Patents

Abstract

The utility model relates to the technical field of calendaring and manufacturing, and discloses wide rubber sheet forming equipment, which comprises: the device comprises at least one pair of extrusion mechanisms for roughly smelting and extruding rubber materials, and a composite press roll mechanism for compounding the rubber materials extruded by each extrusion mechanism and steel wires into cord fabric rubber sheets, wherein a calendering mechanism is arranged between each extrusion mechanism and the corresponding composite press roll mechanism, and finely smelting and extruding the rubber strips roughly extruded by the extrusion mechanisms into the rubber sheets by the calendering mechanism and supplying the rubber sheets to the composite press roll mechanism.

Description

Wide film forming equipment

Technical Field

The utility model relates to the technical field of calendaring and manufacturing, in particular to wide rubber sheet forming equipment.

Background

Calendering is an important process for the shaping of semi-finished and finished rubber and thermoplastic plastics. In the mutual extrusion process of rollers rotating oppositely of the calender, the rubber material becomes a flaky product with certain thickness, width and smooth surface. In order to obtain a product with a smooth surface, air wrapped in the rubber material needs to be discharged, the surface of the product after rolling can be smooth and uniform, otherwise, uneven bubbles are formed on the surface of the product, and the yield of the product is affected.

At present calender supplies to glue and adopts the mode that thick adhesive tape swing supplied glue more, because the mode that the irregular swing of adhesive tape supplied glue, the in-process of compression roller pay-off brought the air into the sizing material easily, influences the roll-in sizing material gassing, and the bubble content of going out glue is high, and the sizing material is not closely knit enough, supplies to glue moreover and inefficiency. However, the swing glue supply mode can control the width of the glue supply glue material through the axial movement distance of the swing mechanism along the press roll, and if the wide film glue supply mode is adopted, the problem of bubbles of the swing glue supply mode can be solved to a certain extent.

Disclosure of Invention

In order to solve one or more technical problems in the prior art or at least provide a beneficial choice, the utility model provides a wide rubber sheet forming device, the air bubble content of the calendered rubber material is low, the rubber material is more compact and smooth, and the control of the rubber discharging width of the rubber material is facilitated.

The present invention provides a wide film forming apparatus, comprising: the device comprises at least one pair of extrusion mechanisms for coarsely mixing and extruding rubber materials, and a composite press roll mechanism for compounding the rubber materials extruded by each extrusion mechanism and steel wires into cord fabric rubber sheets, wherein a calendering mechanism is also arranged between each extrusion mechanism and the corresponding composite press roll mechanism, and finely mixing and extruding the rubber strips coarsely mixed and extruded by the extrusion mechanisms into rubber sheets by the calendering mechanism and supplying the rubber sheets to the composite press roll mechanism.

A conveying line body is arranged between the calendering mechanism and the composite press roll mechanism along the feeding direction of the composite press roll mechanism so as to linearly convey the film extruded by the calendering mechanism to the composite press roll mechanism;

the composite compression roller mechanism is further provided with a first width limiting mechanism and a second width limiting mechanism, the first width limiting mechanism is arranged at the feeding position of the composite compression roller mechanism, the width D1 of the feeding port formed by the first width limiting mechanism is smaller than the width D2 of the extruded film of the calendering mechanism, the second width limiting mechanism is arranged at the discharging position of the composite compression roller mechanism, and the width D3 of the discharging port formed by the second width limiting mechanism is smaller than the width D1 of the feeding port formed by the first width limiting mechanism.

In a preferred implementation mode, the composite pressing roller mechanism comprises two groups of pressing roller sets formed by corresponding extrusion mechanisms, each pressing roller set comprises a pair of roller bodies, and a composite station for compounding rubber materials and steel wires into cord fabric rubber sheets is formed between the adjacent roller bodies of the two groups of pressing roller sets.

In a preferred implementation manner, the first width limiting mechanism is a glue blocking mechanism arranged at the feeding position of each press roller group, and the width D1 of a feeding port formed by the glue blocking mechanism is smaller than the width D2 of the extruded film of the calendering mechanism.

In a preferred implementation mode, the glue blocking mechanism comprises glue blocking plates arranged on two sides of a feeding position of the press roll group, and the glue blocking plates are in sliding butt joint with the roll surface of the press roll.

In a preferred implementation manner, the second width limiting mechanism is a glue scraping mechanism arranged at the discharge position of the composite pressing roller mechanism, and the glue scraping mechanism is configured to have a discharge port width D3 smaller than a width D1 of a feed port formed by the glue blocking mechanism.

In a preferred implementation mode, the glue scraping mechanism comprises glue scraping plates arranged on two sides of the discharge position of the composite press roll mechanism, and the glue scraping plates are in sliding butt joint with the surface of the press roll.

In a preferred implementation mode, the conveyor line body is one or more groups of conveyor belts arranged between the calendering mechanism and the composite compression roller mechanism.

In a preferred implementation, the calendering mechanism is a roll extrusion calender.

In a preferred implementation, the extrusion mechanism is a cold feed extruder.

Due to the adoption of the technical scheme, the utility model has the beneficial effects that:

1. the utility model provides a wide rubber sheet forming device, which comprises an extruding mechanism for coarsely mixing and extruding rubber materials, a rolling mechanism for finely mixing and extruding rubber strips coarsely extruded by the extruding mechanism into rubber sheets and a composite press roll mechanism for compounding the rubber materials extruded by each extruding mechanism and steel wires into cord fabric rubber sheets, wherein the original finely mixed extruder after coarse mixing is replaced by the rolling mechanism for finely mixing the coarse rubber strips into the wide rubber sheets, so that the wide rubber strips are adopted to directly supply rubber to the composite press roll mechanism. Meanwhile, the rubber sheet is directly fed into the compression roller mechanism, and the rubber supply efficiency can also be improved. Because at least one pair of extrusion mechanisms for extruding the rubber materials is arranged, and at least one pair of corresponding calendering mechanisms can finish the double-sided rubberizing of the steel wire.

2. Because wide film has the characteristics of larger self gravity, direction deviation in the transmission process, need to keep self ductility and the like, in order to ensure stable transmission of the wide film, a conveying line body is arranged between the calendering mechanism and the composite compression roller mechanism along the feeding direction of the composite compression roller mechanism, so that the film extruded by the calendering mechanism is linearly conveyed to the composite compression roller mechanism, the condition that the wide film falls on a workbench can be ensured in the transmission process of the wide film, and the wide film is fed in a flat state parallel to the feeding direction all the time under the traction and bearing effects of the conveying line body, so that the deviation phenomenon can not occur in the transmission process, the feeding is stable, and the curtain cloth film with uniform thickness can be prepared. And the friction angle between the rubber material and the roller can be always stabilized to be larger than the contact angle between the rubber material and the roller, so that the wide rubber sheet can be brought into the gap between the rollers under the action of friction force.

3. The composite compression roller mechanism comprises a first width limiting mechanism and a second width limiting mechanism, wherein the first width limiting mechanism can control the width of a feeding film, the second width limiting mechanism can control the width of a discharging film, and under the action of the two-stage width limiting mechanisms, the width of a finally prepared finished film meets the required width requirement, subsequent cutting is not needed, and the process is simple.

4. The composite compression roller mechanism comprises two compression roller sets formed corresponding to the extrusion mechanism, each compression roller set comprises a pair of roller bodies, the wide rubber strip is fed into a gap between each pair of roller bodies, steel wires of a composite station between the adjacent roller bodies of the two compression roller sets are pressed, and two fresh rubber sheets are simultaneously calendered and attached at one time, so that the composite compression roller mechanism is suitable for being used for cord fabric double-sided rubberizing in a tire factory.

5. According to the utility model, the glue blocking mechanism is arranged at the feeding position of the press roller group, and because the glue supply amount is greater than the glue outlet amount, glue stacking is formed at the feeding position of each press roller group, and the glue blocking mechanism can prevent glue leakage in the calendering process. By arranging the glue blocking mechanism, the width of a feeding port formed by the glue blocking mechanism is smaller than the width of a rubber sheet extruded by the calendering mechanism, so that the rubber material is processed in the required width and is prevented from running out of the roller surface. Further, keep off the offset plate that the mechanism is for setting up in compression roller group pan feeding department, keep off offset plate and roll surface slip butt for keep in close contact with and guarantee not have the hourglass phenomenon of gluing with the roll surface when calender operating condition with the offset plate. The width of the feeding opening can be adjusted along the axial direction of the roller according to the width size required by the feeding of the wide film by the glue baffle plate.

6. In order to ensure the size of the rolled film, a glue scraping mechanism is arranged at the discharge part of the composite compression roller mechanism. The width D3 of the discharge hole formed by the glue scraping mechanism is the width of the finished rubber sheet, and the glue scraping mechanism can scrape the redundant rubber. Further, the frictioning mechanism is including setting up in the frictioning board of the ejection of compact department both sides of compound compression roller mechanism, because axial distance between the frictioning board is the discharge gate width D3 that forms promptly is less than the width D1 of the pan feeding mouth that keeps off the formation of gluey mechanism, and the film at frictioning board edge is scraped out and is obtained the curtain cloth film of required width, and the film width that makes is even regular, avoids tailorring of film, and the process is simple.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a calender wide film forming apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of the glue supply of the calender wide film according to an embodiment of the present invention.

Fig. 3 is a schematic view of a glue supply direction of the calender in an embodiment of the utility model.

Description of reference numerals:

1. an extrusion mechanism; 11. a first extruder; 12. a second extruder;

2. a calendering mechanism; 21. a first calender; 22. a second calender;

3. a composite press roll mechanism; 31. a first compression roller set; 32. a second compression roller set; 33. a glue blocking plate; 34. scraping a rubber plate; 35. a first feeding port; 36. a second feeding port; 37. a discharge port;

4. a conveyor line body; 41. a first conveyor belt; 42. a second conveyor belt;

5. an adhesive tape;

6. a wide film;

7. curtain cloth film.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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.

The specific scheme is as follows:

as shown in fig. 1-3, the present invention provides a wide film 6 forming apparatus, which includes an extruding mechanism 1, a composite roller mechanism 3 and a calendering mechanism 2, wherein a pair of extruding mechanisms 1 is used for heating rubber material into thermoplastic adhesive tape 5, and respectively supplies materials to different roller sets of the composite roller mechanism 3. The compound compression roller mechanism 3 is used for compounding the rubber material extruded by each extrusion mechanism 1 and the steel wire into a cord fabric rubber sheet 7, a calendering mechanism 2 is further arranged between each extrusion mechanism 1 and the corresponding compound compression roller mechanism 3, and the calendering mechanism 2 finely smelts and extrudes the rubber strip 5 roughly smelted and extruded by the extrusion mechanisms 1 into a rubber sheet which is supplied to the compound compression roller mechanism 3. The mixed rubber material transported from the banburying workshop is subjected to rough smelting by the extruding mechanism 1 to form rubber material with fluidity and thermoplasticity, wherein the rubber material extruded by the calendering mechanism 2 is the wide rubber sheet 6, the thickness of the preset wide rubber sheet 6 is 2-3 times of that of the finished cord fabric rubber sheet 7, the whole wide rubber sheet 6 can be always in contact with the compression roller of the composite compression roller mechanism 3, a feeding port of the composite compression roller mechanism can keep a certain accumulation amount, the roller collision caused by rubber shortage is prevented, and when the rubber accumulation amount is too much, the burden of the roller is increased. Therefore, the thickness of the wide rubber sheet 6 is set within a certain reasonable range, even if the wide rubber sheet 6 is piled up, the wide rubber sheet 6 is not like the thick rubber strip 5, and the wide rubber sheet 6 is mutually kneaded into a group at the feeding opening to influence feeding or air is reeled in to cause uneven surface of the rubber sheet.

As shown in fig. 1 to 3, in one embodiment, the composite roll mechanism 3 includes two sets of roll sets, a first roll set 31 and a second roll set 32, formed corresponding to each extrusion mechanism 1. Each press roll group comprises a pair of roll bodies, and a compounding station for compounding rubber materials and steel wires into the cord fabric rubber sheet 7 is formed between the adjacent roll bodies of the first press roll group 31 and the second press roll group 32. Combine shown in fig. 3, first compression roller group 31 and second compression roller group 32 are the range from top to bottom of "S" type, the perpendicular workstation setting of adjacent roller of two compression roller groups, make the curtain cloth film 7 parallel output of the compound station output of formation, "each roller of S" type calender is independent each other, mutual noninterference during the atress, the transmission is steady, wide adhesive tape 5 is toward the clearance feed between every group roller, the steel wire pressfitting of the compound station between the roller adjacent with two sets of compression roller groups, once simultaneously with the calendering and the laminating of two fresh films, the two-sided rubberizing of being convenient for.

In one embodiment, the calendering mechanism 2 is a pair of roll extrusion calenders, respectively a first calender 21 and a second calender 22. The first calender 21 and the second calender 22 are respectively arranged corresponding to the first roller group 31 and the second roller group 32, the first calender 21 is arranged on one side of the first roller group 31, and the second calender 22 is arranged on one side of the second roller group 32 and respectively supplies materials to the roller groups. The calendering mechanism 2 firstly carries out fine refining on the rubber strips 5 which are roughly refined to obtain rubber materials with better plasticity and more uniformity, and then the rubber materials with certain temperature and plasticity are fed into two rollers which rotate in opposite directions, so that the rubber materials are strongly extruded to be formed in an extending mode, and the rubber materials are calendered in advance to obtain the wide rubber sheet 6.

In one embodiment, the extrusion mechanism 1 is a pair of cold feed extruders, a first extruder 11 and a second extruder 12, respectively. The first extruder 11 is arranged on one side of the first calender 21, the second extruder 12 is arranged on one side of the second calender 22, the cold feed extruder does not need to be provided with a hot refining device, the thermal history of the rubber material is short, the extrusion temperature is high, the early vulcanization is not easy to occur, the extruded rubber material is more uniform, and the high-quality plasticized rubber material can be obtained.

A conveying line body 4 is further arranged between the calendering mechanism 2 and the composite press roll mechanism 3 along the feeding direction of the composite press roll mechanism 3 so as to linearly convey the wide rubber sheet 6 extruded by the calendering mechanism 2 to the composite press roll mechanism 3. The linear transmission mode of the wide film 6 can ensure that the wide film 6 does not fall on the workbench in the transmission process of the wide film, the wide film is always fed in a flat state in parallel with the feeding direction under the traction and bearing action of the conveyor line body, and the offset phenomenon does not occur in the transmission process,

the composite compression roller mechanism 3 is also provided with a first width limiting mechanism and a second width limiting mechanism, the first width limiting mechanism is arranged at the feeding position of the composite compression roller mechanism, the width D1 of the feeding port formed by the first width limiting mechanism is smaller than the width D2 of the extruded film of the calendering mechanism, the second width limiting mechanism is arranged at the discharging position of the composite compression roller mechanism, and the width D3 of the discharging port formed by the second width limiting mechanism is smaller than the width D1 of the feeding port formed by the first width limiting mechanism. Under the action of the two-stage width limiting mechanisms, the finally prepared cord fabric film 7 meets the required width requirement, subsequent cutting is not needed, and the process is simple.

In one embodiment, a spindle unwinding frame, a splicer and a warping device are further arranged beside the composite press roll mechanism 3, the spindle unwinding frame is used for placing a steel wire spindle, steel wires before being rolled are arranged in order according to a specified density on the warping device and are pressed on the press rolls of the press roll group to be positioned, and the cord thread is ensured not to be dislocated during gluing.

As shown in fig. 2, in one embodiment, the first width limiting mechanism is a glue blocking mechanism disposed at the feeding position of each press roller set, and the glue blocking mechanism can prevent glue from running out of the roller surface, so as to avoid polluting the environment of the processing station. The glue blocking mechanism is used for respectively forming a first feeding port 35 and a second feeding port 36 at feeding positions of the first pressing roller group 31 and the second pressing roller group 32, the width of the two feeding ports is D1, and D1 is smaller than the width D2 of the wide glue piece 6 extruded by the calendaring mechanism 2, so that the glue material is kept in the required width range of the roller surface, namely the width D1 of the feeding ports, and the wide glue piece 6 is processed.

As shown in fig. 2, in one embodiment, the glue blocking mechanism includes two sets of glue blocking plates 33 disposed at two sides of the feeding position of the roller set, the distance between the glue blocking plates 33 determines the width D1 of the feeding port, and the glue blocking plates 33 are in sliding contact with the roller surface of the roller to ensure that the glue blocking plates 33 are in close contact with the roller surface without glue leakage. The rubber stopper 33 may be made of a wear-resistant material such as nylon plate or teflon plate. Keep off offset plate 33 and preferably adopt components of a whole that can function independently to keep off offset plate 33, including a set of offset plate 33 and roll adjustment device, the roll adjustment device is including driving the cylinder that keeps off offset plate 33 and lift up and descend, the adjustment realize with the roll surface between in close contact with, still including the lead screw that the drive kept off offset plate 33 along roll surface axial motion to when putting in different sizing materials, keep off offset plate 33 and can adjust along the roll axial according to the width size that the entering of wide film 6 needs, obtain the wide film 6 of different material widths.

In one embodiment, as shown in fig. 2, the second width limiting mechanism is a glue scraping mechanism disposed at the discharging position of the composite press roll mechanism 3, and in order to ensure the calendering size, the glue scraping mechanism is configured to have a width D3 of the discharging port 37 smaller than a width D1 of the feeding port formed by the glue blocking mechanism, and the glue scraping mechanism scrapes off excess glue at the edge of the discharging port 37, where the width D3 of the discharging port 37 is the required width of the cord fabric piece 7.

As shown in fig. 2, the glue scraping mechanism comprises glue scraping plates 34 arranged on two sides of the discharge position of the composite press roll mechanism 3, the glue scraping plates 34 form a discharge port 37, the glue scraping plates 34 are in sliding butt joint with the roll surface of the press roll, and the glue scraping plates 34 are ensured to be in close contact with the roll surface without glue leakage. In one embodiment, the squeegee 34 is made of the same material and structure as the glue dam 33. Scrape offset plate 34 simultaneously also including a set of offset plate 34 and roll adjustment device, the roll adjustment device is including driving the offset plate 34 and lifting up and the lead screw of decline with the cylinder of decline and drive offset plate 34 along roll surface axial motion to the adjustment realizes scraping the intimate contact between offset plate 34 and the roll surface, and when putting in different sizing materials, scrape offset plate 34 and can adjust the width D3 of discharge gate 37 along the roller axial according to the width size that finished product film needs, obtains the curtain cloth film of different material widths.

In an embodiment, the glue scraping mechanism further comprises a collecting device arranged on one side, back to the discharge port 37, of the composite press roller mechanism 3, edge glue scraped from the edge of the discharge port 37 enters the collecting device, the scraped film can be recovered, and the film is output to be a wide film after secondary refining and is output to the composite press roller mechanism 3 again, so that the utilization rate of the film is improved. The collecting device may be a barrel-shaped box.

As shown in fig. 1-2, in one embodiment, a conveyor line body 4 is further disposed between the calendering mechanism 2 and the composite roller mechanism 3 along the feeding direction of the composite roller mechanism 3, so as to linearly convey the wide film 6 extruded by the calendering mechanism 2 to the roller set of the composite roller mechanism 3, the feeding is stable, a curtain cloth film with uniform thickness can be obtained, and the friction angle between the rubber material and the roller can be always stable to be larger than the contact angle with the roller, so that the wide film 6 can be brought into the gap between the rollers under the action of friction force.

As shown in fig. 1-2, the conveyor line body 4 is a set of conveyor belts disposed between the calendering mechanism 2 and the composite roller mechanism 3, and is respectively a first conveyor belt 41 connected to the first calender 21 and a second conveyor belt 42 connected to the second calender 22. The wide rubber sheet 6 is of a sheet structure, the wide rubber sheet 6 pre-calendered by the calender 2 is flatly spread on the conveying belt and is conveyed to a feeding position of the compression roller group by the conveying belt, the conveying belt operates stably, and feeding is stable at the feeding position.

The working process of the glue supply apparatus in this embodiment is described in detail below with reference to fig. 1 to 3:

step 1: conveying the mixed rubber material conveyed by the internal mixing workshop into a first extruder 11 and a second extruder 12 for rough mixing to obtain a plastic rubber strip 5;

step 2: the rubber strip 5 after rough smelting is supplied to a first calender 21 and a second calender 22, and a wide rubber sheet 6 is obtained after fine smelting and calendering by the calenders;

and step 3: the wide film 6 is conveyed to the feeding positions of the two groups of press roller groups by the conveying belt, the wide film 6 is brought into the press roller gap along with the rotation of the press roller groups to carry out double-sided rubberizing on the steel cord to form a steel cord fabric film 7, and the cord fabric film 7 at the discharge position after the rolling is subjected to the rubberizing treatment by the rubberizing plate 34 to obtain the film product with the required width and thickness.

Through the cooperation of first limit for width mechanism, second limit for width mechanism, fashioned film products width slightly is greater than final finished product, and follow-up accessible cutting machine cuts film products in order to satisfy final finished product's dimensional requirement, and when satisfying that the sizing material is level and smooth, closely knit, has more improved the play of sizing material width control level.

The technical solutions protected by the present invention are not limited to the above embodiments, and it should be noted that the combination of the technical solution of any one embodiment and the technical solution of one or more other embodiments is within the protection scope of the present invention. Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.

Claims (9)

1. A wide film forming apparatus, comprising:

at least one pair of extrusion mechanisms for crudely extruding the rubber material;

the composite compression roller mechanism is used for compounding the rubber material extruded by each extruding mechanism and the steel wire into a cord fabric rubber sheet;

a calendering mechanism is arranged between each extrusion mechanism and the corresponding composite press roll mechanism, and the calendering mechanism finely smelts and extrudes the adhesive tape roughly extruded by the extrusion mechanism into a film which is supplied to the composite press roll mechanism;

a conveying line body is further arranged between the calendering mechanism and the composite press roll mechanism along the feeding direction of the composite press roll mechanism so as to linearly convey the film extruded by the calendering mechanism to the composite press roll mechanism;

compound compression roller mechanism still is equipped with first limit for width mechanism and second limit for width mechanism, first limit for width mechanism locates compound compression roller mechanism's pan feeding department, the width D1 of the pan feeding mouth that first limit for width mechanism formed is less than the width D2 of film is extruded to the calendering mechanism, second limit for width mechanism locates compound compression roller mechanism's ejection of compact department, the width D3 of the discharge gate that second limit for width mechanism formed is less than the width D1 of the pan feeding mouth that first limit for width mechanism formed.

2. The wide film forming apparatus of claim 1, wherein the composite roller mechanism comprises two sets of roller sets formed corresponding to each of the extrusion mechanisms, each of the sets of roller sets comprises a pair of roller bodies, and a composite station for combining the rubber material and the steel wire into the cord fabric film is formed between adjacent roller bodies of the two sets of roller sets.

3. The wide film forming apparatus of claim 2, wherein the first width limiting mechanism is a glue blocking mechanism disposed at the feeding position of each of the roller sets, and the width D1 of the feeding port formed by the glue blocking mechanism is smaller than the width D2 of the extruded film of the calendaring mechanism.

4. The wide film forming apparatus of claim 3, wherein the glue blocking mechanism comprises glue blocking plates disposed on both sides of the feeding position of the pressing roller set, and the glue blocking plates are in sliding contact with the roller surface of the pressing roller.

5. The wide film forming apparatus of claim 3, wherein said second width limiting mechanism is a glue scraping mechanism disposed at the discharge of said composite roller mechanism, said glue scraping mechanism is configured to have a discharge opening width D3 smaller than a width D1 of a feed opening formed by said glue blocking mechanism.

6. The wide film forming apparatus of claim 5, wherein the doctor blade mechanism comprises doctor blades disposed on both sides of the discharge portion of the composite roller mechanism, and the doctor blades are in sliding contact with the roller surface of the roller.

7. The apparatus of claim 1, wherein the conveyor line is one or more sets of conveyor belts disposed between the calendering mechanism and the compound roller mechanism.

8. The wide film forming apparatus according to claim 1, wherein the calender mechanism is a roll extrusion calender.

9. The wide film forming apparatus of claim 1, wherein the extruding means is a cold feed extruder.

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