CN113524542A

CN113524542A - High-precision temperature control film casting machine

Info

Publication number: CN113524542A
Application number: CN202110783485.6A
Authority: CN
Inventors: 辛文胜; 刘美元; 刘家浩; 于青; 周怡君
Original assignee: China Gwell Machinery Co ltd
Current assignee: China Gwell Machinery Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-10-22
Anticipated expiration: 2041-07-12
Also published as: CN113524542B

Abstract

The invention discloses a high-precision temperature control film casting machine, which is characterized in that a rubber roll, a fancy stranding roll, a grinding roll, a first cooling roll and a second cooling roll are sequentially rotatably supported on a rack from front to back, a rubber roll outer cylinder is mounted on a rubber roll end cover, a rubber roll semiconductor cooling cylinder is paved on the inner cylinder wall of the rubber roll outer cylinder, a flexible roll sleeve is sleeved on the rubber roll outer cylinder, two ends of the flexible roll sleeve are respectively and fixedly connected to roll sleeve supporting end plates at corresponding ends, an end face cam is arranged on the inner side of each roll sleeve supporting end plate, and a cam rolling body mounted on each roll sleeve supporting end plate is movably supported on the end face of the end face cam; the inner cylinder wall of the checkered roller outer cylinder is paved with a checkered roller semiconductor cooling cylinder, a frosted roller cooling water cavity is arranged between the frosted roller inner cylinder and the frosted roller outer cylinder, and the frosted roller cooling water cavity is led to a frosted roller end shaft water hole in the frosted roller end roller through a frosted roller end water hole in the frosted roller end cover. The casting machine can accurately control the temperature of the casting cooling roller and can control the transverse contraction width phenomenon of a casting film.

Description

High-precision temperature control film casting machine

Technical Field

The invention relates to the field of film production equipment, in particular to a casting machine capable of accurately controlling casting temperature and uniformity of a cast film.

Background

The casting machine is a production device for manufacturing thermoplastic plastic films by a casting method. The forming process of the extrusion casting film comprises the steps of melting and plasticizing a film forming raw material through an extruder, extruding the raw material from a machine head through a slit opening of a die, enabling a molten material to be attached to a casting cooling roller closely, then stretching and cooling the molten material longitudinally to form a film under the traction and cooling effects of the casting roller, and coiling the film into a coil through pre-trimming and thickness measurement.

In the forming production process of the casting film, whether the thickness of the film is uniform or not is an extremely important index for detecting the quality of a film product, the thickness of the film is not uniform, the tensile strength and the barrier property of the film at each position are influenced, the rolled surface of the film after being curled is also subjected to rib explosion, the film at the rib explosion position forms permanent deformation, the subsequent processing and the actual use of the film are further influenced, and the subsequent processes of compounding, printing, plating and the like are seriously influenced if the film surface is not flat and the film is loosened and sagged. Particularly, the power generation efficiency of the photovoltaic cell is directly influenced by the uneven thickness or the wrinkles of the EVA packaging adhesive film for the solar photovoltaic cell.

The non-uniformity of cast film thickness is in turn directly related to the casting roll temperature control. Due to the thermal property of the extruded plastic, the melt can not move uniformly and uniformly, and the distribution of the melt can be influenced by the speed change of the plastic melt, so that the transverse thickness of a plastic film is influenced, the unreasonable fluctuation of the film forming temperature can also influence the inconsistency of the flow speed and the flow, and the transverse thickness after film forming is not uniform. Non-uniformity in cast film thickness is also associated with neck-in during cast film production, where hot stretching of a molten cast film in air narrows the film, resulting in neck-in at the edges of the film, or wrinkles and edge material thickening, the larger the neck-in, the thicker the edge insulation of the film, and the corresponding decrease in product yield with increasing thick edge stock. Therefore, how to accurately control the temperature of the casting cooling roller and effectively eliminate the transverse thickness unevenness is an important means for ensuring the quality of the casting film.

Disclosure of Invention

The invention aims to provide a high-precision temperature control film casting machine which can not only accurately control the temperature of a casting cooling roller, but also provide stable transverse flattening force and reduce the transverse contraction phenomenon of a casting film.

In order to solve the technical problem, the high-precision temperature control film casting machine comprises a rack, wherein a rubber roll, a fancy stranding roll, a grinding roll, a first cooling roll and a second cooling roll are sequentially rotatably supported on the rack from front to back, an extrusion die is arranged above the rubber roll and the fancy stranding roll, an extrusion path of the extrusion die is positioned at a common tangent position of the rubber roll and the fancy stranding roll, and a heating lamp is arranged on one side of the extrusion path and has a heating temperature of 580-600 ℃ in an extrusion path area; the rubber roller comprises a rubber roller inner cylinder, two ends of the rubber roller inner cylinder are fixedly supported with a rubber roller end shaft through corresponding rubber roller end covers, the rubber roller end covers at the two ends are also fixedly provided with rubber roller outer cylinders, the inner cylinder wall of the rubber roller outer cylinder is paved with a rubber roller semiconductor refrigerating cylinder, the cold end side of the rubber roller semiconductor refrigerating cylinder is attached to the inner cylinder wall of the rubber roller outer cylinder, the temperature of the cold end side of the rubber roller semiconductor refrigerating cylinder is 9-10 ℃, a rubber roller cooling water cavity is formed between the hot end side of the rubber roller semiconductor refrigerating cylinder and the outer wall of the rubber roller inner cylinder, the rubber roller cooling water cavity is communicated with a rubber roller shaft water hole on the rubber roller end shaft on the corresponding side through a rubber roller end cover water hole on the rubber roller end cover, a flexible roller sleeve is sleeved on the rubber roller outer cylinder, two ends of the flexible roller sleeve are respectively and fixedly connected to the roller sleeve supporting end plates at the corresponding ends, an end face cam is arranged on the inner side of the roller sleeve supporting end plate, and a cam rolling body arranged on the roller sleeve supporting end plate is movably supported on the end face of the end face cam; the decorative pattern roller comprises a decorative pattern roller inner cylinder, decorative pattern roller end shafts are fixedly supported at two ends of the decorative pattern roller inner cylinder through corresponding decorative pattern roller end covers, decorative pattern roller outer cylinders are further fixedly mounted on the decorative pattern roller end covers at the two ends, a decorative pattern roller semiconductor cooling cylinder is paved on the inner cylinder wall of the decorative pattern roller outer cylinder, the cold end side of the decorative pattern roller semiconductor cooling cylinder is attached to the inner cylinder wall of the decorative pattern roller outer cylinder, the cold end side of the decorative pattern roller semiconductor cooling cylinder is 39-40 ℃, a decorative pattern roller cooling water cavity is formed between the hot end side of the decorative pattern roller semiconductor cooling cylinder and the outer wall of the decorative pattern roller inner cylinder, and the decorative pattern roller cooling water cavity leads to the decorative pattern roller end shaft water holes in the decorative pattern roller end shafts through decorative pattern roller end cover water holes in the decorative pattern roller end covers; the grinding roller comprises a grinding roller inner barrel, grinding roller end rollers are fixedly supported at two ends of the grinding roller inner barrel through corresponding grinding roller end cover fixing supports, grinding roller outer barrels are fixedly mounted on the grinding roller end covers at the two ends, a grinding roller cooling water cavity is arranged between the grinding roller inner barrel and the grinding roller outer barrel, the grinding roller cooling water cavity is communicated to a grinding roller end shaft water hole in the grinding roller end roller through a grinding roller end water hole in the grinding roller end cover, the temperature of the barrel wall of the grinding roller outer barrel ranges from 20 ℃ to 30 ℃, and the temperature of the first cooling roller and the second cooling roller ranges from 20 ℃ to 30 ℃.

In the invention, because the inner cylinder walls of the roller outer cylinder of the rubber roller and the checkered roller which are mutually opposite to each other are provided with the semiconductor refrigeration cylinder body, the cold end of the semiconductor refrigeration sheet forming the semiconductor refrigeration cylinder body is jointed with the inner cylinder wall of the roller outer cylinder, the hot end of the semiconductor refrigeration sheet is contacted with the cooling water cavity for heat transfer, the structure that the hot end is contacted and conducted with the cooling water cavity is adopted, the function of heat dissipation of the hot end of the refrigeration sheet is achieved, the temperature of the cold end of the semiconductor is rapidly reduced, the temperature of the hot end can be lower, the semiconductor refrigeration sheet is adopted as the refrigeration source of the rubber roller and the checkered roller, firstly, the high-precision temperature control can be realized, and the temperature detection and control technology is added, the program control and the computer automatic temperature control are easily realized, thereby forming an automatic control system, the high-precision control of the temperature of the cooling roller is realized, and the semiconductor refrigeration sheet has the characteristic of small thermal inertia, the cooling device has the advantages of high cooling speed, high cooling temperature of the surface of the roller due to the high-efficiency heat transfer structure of the hot end cooling water cavity, no refrigerant pollution due to the adoption of the semiconductor refrigerating sheet, compact structure, high reliability, no moving part, no vibration noise during working, easiness in installation and long service life. The flexible roller sleeve is sleeved on the outer roller cylinder, the end face cam is arranged on the inner side of the roller sleeve supporting end plate, the end face cam generates a transverse (axial) flattening effect on the flexible roller sleeve through the roller sleeve supporting end plate, the transverse length (axial) of one side of the flexible roller sleeve and the patterned roller which are oppositely rolled is gradually increased under the effect of the end face cam when the flexible roller sleeve rotates along with the rubber roller, and the transverse length of the other side of the flexible roller sleeve is gradually shortened, so that the flexible roller sleeve generates a fan-shaped gradually-stretching area, the flexible roller sleeve of the flexible base material is stretched along with the rotation of the rubber roller, the flattening efficiency of the material film is achieved, the contraction phenomenon of the casting film is effectively controlled, wrinkles and the accumulation and thickening of rim charge of the molten casting film are avoided, and the thickness of the casting film is uniform and consistent. And because the grinding roller cooling water cavity is arranged in the roller cavity of the grinding roller, the roller surface temperature of the grinding roller is effectively stabilized by virtue of the physical characteristic of high heat capacity of the cooling water. Furthermore, because the heating lamp is arranged on one side of the material extruding path, and the heating temperature of 580-600 ℃ is formed in the material extruding path area of the heating lamp, the casting melt film generates better pre-crosslinking temperature, and simultaneously, the temperature of the cold end side of the rubber roller is controlled to be 9-10 ℃ and the temperature of the cold end side of the checkered roller is controlled to be 39-40 ℃ by means of the accurate temperature control effect of the semiconductor refrigerating sheet, so that the pre-crosslinking reaction is controlled, and the ideal crosslinking degree is achieved; the temperature of the subsequent grinding roller, the cooling roller I and the cooling roller II is controlled to be 20-30 ℃, so that the temperature of the casting film gradually approaches to normal temperature to reach inviscid property, the film is conveniently separated from the roller, and the stable quality of the film is ensured.

In a further embodiment of the present invention, the extrusion die is suspended from a die holder; the heating lamp adopts an infrared heating lamp, and the heating lamp is fixedly arranged on the rack. Has the advantages of high temperature rise speed, uniform heating and small thermal inertia.

In a preferred embodiment of the present invention, the flexible roller sleeve is a soft rubber sleeve made of antistatic silicone rubber material, and two ends of the flexible roller sleeve are respectively glued to the shaft sleeve supporting end plates at the corresponding ends. Has excellent heat resistance and antistatic effect.

In a further embodiment of the present invention, the end cam is a circular ring with different thickness, the lower side of the circular ring is movably supported on the cam seat through a cam hinge spherical surface, the upper side of the circular ring is supported on the cam seat through an adjusting bolt, and the cam seat is fixedly installed on the frame. The cam rolling body is a steel ball which is supported on the roller sleeve supporting end plate through a fluid support; a plurality of cam rolling bodies are arranged on the same circumference of the roller sleeve supporting end plate. The space motion of the end cam and the roller sleeve supporting end plate is formed, the structure is simple, and the manufacture and the installation are convenient.

In a further embodiment of the invention, the center lines of the inner rubber roll cylinder, the outer rubber roll cylinder, the semiconductor rubber roll refrigerating cylinder and the end shaft of the rubber roll are positioned on the same straight line. The rubber roller semiconductor refrigeration cylinder is electrically connected with the rubber roller conductive slip ring, and the rubber roller conductive slip ring is sleeved on the end shaft of the rubber shaft. The servo refrigeration of the rubber roller semiconductor refrigeration component is realized.

In a further embodiment of the invention, the outer cylinder surface of the outer cylinder of the checkered roller is provided with a concave-convex pattern, the semiconductor cooling cylinder of the checkered roller is electrically connected with the conductive sliding ring of the checkered roller, the center lines of the inner cylinder of the checkered roller, the outer cylinder of the checkered roller and the end shaft of the checkered roller are positioned on the same straight line, and the conductive sliding ring of the checkered roller is sleeved on the end shaft of the checkered roller. The friction traction effect of the patterned roller on the cast film is enhanced, and the follow-up refrigeration of the patterned roller semiconductor refrigeration part is realized.

In a further embodiment of the present invention, the outer cylinder wall of the outer cylinder of the grinding roller is a grinding surface, and the center lines of the inner cylinder of the grinding roller, the outer cylinder of the grinding roller and the end shaft of the grinding roller are on the same straight line. The traction friction effect of the frosted roller on the casting film is enhanced.

In the preferred embodiment of the invention, the glue roller end water hole, the pattern roller end water hole and the frosted roller end water hole are communicated with a circulating cold water source, and the cold water roller cavities of the first cooling roller and the second cooling roller are communicated with the circulating cold water source. Ensuring stable and reliable refrigeration effect.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of the high-precision temperature-controlled film casting machine of the present invention;

FIG. 2 is a schematic cross-sectional view of the rubber roller in the embodiment shown in FIG. 1;

FIG. 3 is an enlarged view of section I of FIG. 2;

FIG. 4 is a front view of the end cam of FIG. 3;

FIG. 5 is a schematic view of the cross-sectional structure A-A of FIG. 4;

FIG. 6 is a schematic cross-sectional view of the bushing support end plate and cam roller of FIG. 3;

FIG. 7 is a schematic left side view of the structure of FIG. 6;

FIG. 8 is a schematic view of the main cross-sectional structure of the patterned roll of the embodiment shown in FIG. 1;

FIG. 9 is an enlarged schematic view of section II of FIG. 8;

fig. 10 is a schematic cross-sectional view of the sanding roller of the embodiment of fig. 1;

FIG. 11 is an enlarged schematic view of section III of FIG. 10;

in the figure, 1-frame, 2-rubber roll support, 3-checkered roll adjusting seat, 4-checkered roll support, 5-cooling roll I, 6-cooling roll II, 7-frosting roll, 701-frosting roll inner cylinder, 702-frosting roll cooling water cavity, 703-frosting roll outer cylinder, 704-frosting roll end cover water hole, 705-frosting roll end cover, 706-frosting roll end shaft, 707-frosting roll end shaft water hole, 8-checkered roll, 801-checkered roll inner cylinder, 802-checkered roll cooling water cavity, 803-checkered roll semiconductor cooling cylinder, 804-checkered roll outer cylinder, 805-checkered roll end cover water hole, 806-checkered roll end cover, 807-checkered roll end shaft, 808-checkered roll conductive slip ring, 809-checkered roll end shaft water hole, 9-901, 901-rubber roll inner cylinder, rubber roll-902-rubber roll cooling water cavity, 903-rubber roll semiconductor cooling cylinder, 904-rubber roll outer cylinder, 906-flexible end cover, 905-flexible end cover water hole, etc. of checkered roll cover, etc 907-rubber roll end cover, 908-cam seat, 909-end face cam, 910-roller sleeve supporting end plate, 911-adjusting bolt, 912-rubber roll conductive sliding ring, 913-rubber roll end shaft, 914-rubber roll end shaft water hole, 915-cam rolling body, 916-rolling body support, 917-cam hinged spherical surface, 918-adjusting screw hole, 919-cam hinged ball socket, 10-heating lamp, 11-extrusion material film, 12-extrusion die, 13-pressure cylinder and 14-die support.

Detailed Description

The high-precision temperature control film casting machine comprises a frame 1, wherein a rubber roll 9, a pattern roll 8, a grinding roll 7, a first cooling roll 6 and a second cooling roll 5 are sequentially rotatably supported on the frame 1 of a frame structure from front to back through symmetrically arranged bearing seats, the rotating supporting seats of the rubber roll 9 and the pattern roll 8 which are relatively rolled can be supported on the frame 1 in a displacement manner, a pattern roll supporting seat 4 of the pattern roll 8 is provided with a pattern roll adjusting screw rod 3 for adjusting the position of the pattern roll 8, the pattern roll supporting seat 4 is movably supported on the frame 1, and the pattern roll adjusting screw rod 3 is also supported on the frame 1. A pressing cylinder 13 is supported on the rubber roller support 2 of the rubber roller 9 in a butting manner, the rubber roller support 2 is movably supported on the frame 1, and the pressing cylinder 13 is hinged on the frame 1 through the pressing cylinder support. When the position of the checkered roller 8 and the checkered roller support 4 is locked, the pressing air cylinder 13 enables the rubber roller 9 and the checkered roller 8 to be attached to each other through the rubber roller support 2. The pattern roller 8 is connected with a corresponding driving motor in a transmission way, and the rubber roller 9 which rolls against the pattern roller is a follow-up rotating roller. The glue roller end shaft water holes 914 in the glue roller end shafts 913 at the two ends of the glue roller 9 are communicated with the corresponding circulating cooling water paths; and the checkered roller end shaft water holes 809 on the checkered roller end shafts 807 at the two ends of the checkered roller 8 are also communicated with corresponding circulating cooling water channels.

The frame 1 is supported with the grinding roller 7 through the corresponding rotary bearing support seat, and the cooling water cavity of the grinding roller 7 is also communicated with the corresponding circulating cooling water channel. The cooling water cavities of the first cooling roller 6 and the second cooling roller 5 are mutually connected in series and communicated with a common circulating cooling water channel.

An extrusion die 12 is arranged above a vertical common tangent line of the rubber roller 9 and the pattern roller 8 which roll against each other, and an extrusion path of the molten extrusion material sequentially bypasses the pattern roller 8, the frosted roller 7, the first cooling roller 6 and the second cooling roller 5 and continues to extend backwards after starting along the common tangent line of the rubber roller 9 and the pattern roller 8 from an extrusion port of the extrusion die 12. The extrusion die 12 is suspended from a die holder 14. A heating lamp 10 is arranged on one side of a material extruding path between an extruding die 12 and a position where a rubber roller 9 and a pattern roller 8 are oppositely rolled, the heating lamp 10 is fixedly supported on a frame 1 through a corresponding support, the heating lamp 10 irradiates a material film on the material extruding path of the heating lamp, and the radiation temperature of the material extruding path area of the heating lamp reaches 580-600 ℃. The heating lamps 10 are three groups of infrared heating lamps.

As shown in fig. 2 and fig. 3, the rubber roller 9 includes a rubber roller inner cylinder 901, two ends of the rubber roller inner cylinder 901 are respectively and fixedly supported by a rubber roller end cover 907 through corresponding rubber roller end covers 913, rubber roller outer cylinders 904 are also fixedly mounted on the rubber roller end covers 907 at the two ends, a rubber roller semiconductor cooling cylinder 903 is laid on the inner cylinder wall of the rubber roller outer cylinder 904, the rubber roller semiconductor cooling cylinder 903 includes an inner waterproof substrate and an outer waterproof substrate of the cooling cylinder, and a plurality of semiconductor couples are packaged between the two waterproof substrates. The rubber roll semiconductor refrigeration cylinder 903 and the rubber roll conductive slip ring 912 are electrically connected with each other, the cold end side wall of the rubber roll semiconductor refrigeration cylinder 903 and the inner cylinder wall of the rubber roll outer cylinder 904 are bonded and attached to each other, the cold end side temperature of the rubber roll semiconductor refrigeration cylinder 903 is controlled to be 9-10 ℃, the hot end side wall of the rubber roll semiconductor refrigeration cylinder 903 and the outer wall of the rubber roll inner cylinder 901 are spaced from each other to form a rubber roll cooling water cavity 902, and the rubber roll cooling water cavity 912 is provided with a plurality of spiral sheets and reinforcing ribs, and is of a specific structure like a rubber film special roller structure (patent application number 201811573620.9). The rubber roll cooling water cavity 902 is communicated with a rubber roll end shaft water hole 914 on a rubber roll end shaft 913 on the corresponding side through rubber roll end cover water holes 906 on rubber roll end covers 907 on two ends of the rubber roll cooling water cavity, and the rubber roll end shaft water hole 914 is communicated with a corresponding circulating cooling water channel so as to take away heat energy of the hot end of the rubber roll semiconductor cooling cylinder 903 through cooling water.

A flexible roller sleeve 905 is sleeved on the rubber roller outer cylinder 904, and two ends of the flexible roller sleeve 905 are fixedly connected to the roller sleeve supporting end plates 910 at the corresponding ends respectively through viscose glue. The flexible roller sleeve 905 is a soft rubber sleeve made of an anti-static silicon rubber material, the soft rubber has good elasticity, and can effectively reduce adverse effects of static electricity on a molten material film.

An end cam 909 is arranged on the inner side of the roll shell supporting end plate 910, the end cam 909 is a circular ring with different thickness, the lower side of the circular ring is movably supported on the cam seat 908 through a cam hinge supporting spherical surface 917, the upper side of the circular ring is supported on the cam seat 908 through an adjusting bolt 911, the cam seat 908 is fixedly installed on the frame 1, a cam rolling body 915 is supported on the roll shell supporting end plate 910 through a rolling body support 916, and the cam rolling body 915 is positioned between the roll shell supporting end plate 910 and the end cam 909. When the roller sleeve supporting end plate 910 rotates with the outer roller cylinder, the roller sleeve supporting end plate 910 makes the transverse length of the flexible roller sleeve 905 gradually extend from one side to the other side and then gradually shorten from the side to the other side under the action of the end cam 909 of the roller sleeve supporting end plate 910, so as to achieve the effect of flattening the adhesive film.

In the above structure, the center lines of the rubber roll inner barrel 901, the rubber roll outer barrel 904, the rubber roll semiconductor cooling barrel 903 and the rubber roll end shaft 913 are all on the same straight line, i.e. coaxial with each other.

As shown in fig. 4 and 5, the end cam 909 is in the form of a short circular cylindrical ring, and both end faces of the short circular cylindrical ring are located on two planes intersecting each other, thereby forming a circular ring structure with different thicknesses. Two adjusting screw holes 918 are formed in the upper side of the end face cam 909, and adjusting bolts 911 are screwed into the adjusting screw holes 918 so as to adjust the inclination angle of the inclined working surface of the end face cam 909 to adapt to the flattening effect of different adhesive films. A cam hinge ball socket 919 is provided on the lower side of the end cam 909, and the cam hinge ball socket 919 is slidably supported by the cam hinge spherical surface 917.

As shown in fig. 6 and 7, the sleeve support end plate 910 is also of a circular ring structure, and a plurality of cam rolling elements 915 made of steel balls are supported on the inner side surface of the circular ring at equal intervals by rolling element supports 916. The cam rolling elements 915 are not limited to steel ball structures, and can be corresponding structures such as rollers, so that an end face cam pair is formed.

As shown in fig. 8 and 9, the checkered roller 8 comprises a checkered roller inner cylinder 801, checkered roller end shafts 807 are fixedly supported at two ends of the checkered roller inner cylinder 801 through corresponding checkered roller end covers 806, the checkered roller end shafts 807 are rotatably supported on the checkered roller support 4, checkered roller outer cylinders 804 are also fixedly mounted on the checkered roller end covers 806 at two ends, concave-convex patterns are arranged on the outer cylinder wall of the checkered roller outer cylinder 804 to increase the friction traction effect on an adhesive film, a checkered roller semiconductor cooling cylinder 803 is also paved on the inner cylinder wall of the checkered roller outer cylinder 804, and the structure of the checkered roller semiconductor cooling cylinder 803 is the same as that of the rubber roller semiconductor cooling cylinder 903. The patterned roller semiconductor cooling cylinder 803 is electrically connected with a patterned roller conductive slip ring 808, and the patterned roller conductive slip ring 808 is sleeved on the patterned roller end shaft 807. The center lines of the pattern roller inner cylinder 801, the pattern roller outer cylinder 804 and the pattern roller end shaft 807 are on the same straight line, namely the three are coaxial.

The cold end side wall of the checkered roller semiconductor cooling cylinder 803 is attached to the inner cylinder wall of the checkered roller outer cylinder 804, and the cold end side temperature of the checkered roller semiconductor cooling cylinder 803 is 39-40 ℃. The side wall of the hot end of the checkered roller semiconductor cooling cylinder 803 and the outer cylinder wall of the checkered roller inner cylinder 801 are arranged at intervals to form a checkered roller cooling water cavity 802, the checkered roller cooling water cavity 802 leads to a checkered roller end shaft water hole 809 on a checkered roller end shaft 807 through a checkered roller end cover water hole 805 on the checkered roller end cover 806, and the checkered roller end shaft water hole 809 is communicated with a pair of circulating cooling water channels.

As shown in fig. 10 and 11, the sanding roller 7 includes a sanding roller inner cylinder 701, sanding roller outer cylinders 703 are fixedly attached to sanding roller end caps 705 at both ends of the sanding roller inner cylinder 701, and outer cylinder walls of the sanding roller outer cylinders 703 are provided with frosted surfaces. The frosted roller end covers 705 at the two ends of the frosted roller inner cylinder 701 are fixedly supported with frosted roller end shafts 706, a frosted roller cooling water cavity 702 is arranged between the frosted roller inner cylinder 701 and the frosted roller outer cylinder 703, the frosted roller cooling water cavity 702 is led to a frosted roller end shaft water hole 707 on the frosted roller end shaft 706 through a frosted roller end cover water hole 704, the frosted roller end shaft water hole 707 is communicated with a corresponding circulating cooling water channel, and the temperature of the cylinder wall of the frosted roller outer cylinder 703 is controlled to be 20-30 ℃. The center lines of the inner cylinder 701, the outer cylinder 703 and the end shaft 706 of the sanding roller are on the same straight line, i.e. the three are coaxial.

The first cooling roller 6 and the second cooling roller 5 have the same structure as the grinding roller 7, and the roller temperature of the first cooling roller and the grinding roller is controlled to be 20-30 ℃, which is different in that: and the cooling water cavities of the first cooling roller 6 and the second cooling roller 5 are mutually connected in series and communicated with the same corresponding circulating cooling water channel after being connected in series.

Claims

1. The utility model provides a high accuracy control by temperature change film casting machine, includes frame (1), its characterized in that: the machine frame (1) is sequentially supported with a rubber roll (9), a fancy stranding roller (8), a grinding roller (7), a cooling roller I (6) and a cooling roller II (5) in a rotating mode from front to back, an extrusion die (12) is arranged above the rubber roll (9) and the fancy stranding roller (8), an extrusion path of the extrusion die (12) is located at a common tangent position of the rubber roll (9) and the fancy stranding roller (8), a heating lamp (10) is arranged on one side of the extrusion path, and the heating temperature of the heating lamp (10) in an extrusion path area is 580-600 ℃; the rubber roller (9) comprises a rubber roller inner barrel (901), rubber roller end shafts (913) are fixedly supported at two ends of the rubber roller inner barrel (901) through corresponding rubber roller end covers (907), rubber roller outer barrels (904) are also fixedly installed on the rubber roller end covers (907) at the two ends, a rubber roller semiconductor cooling barrel (903) is paved on the inner barrel wall of the rubber roller outer barrel (904), the cold end side of the rubber roller semiconductor cooling barrel (903) is attached to the inner barrel wall of the rubber roller outer barrel (904), the cold end side of the rubber roller semiconductor cooling barrel (903) is 9-10 ℃, a rubber roller cooling water cavity (902) is formed between the hot end side of the rubber roller semiconductor cooling barrel (903) and the outer wall of the rubber roller inner barrel (901), the rubber roller cooling water cavity (902) is communicated to rubber roller shaft holes (914) on the rubber roller end shafts (913) at the corresponding side through end cover water holes (906) on the rubber roller end covers (907), and a flexible roller sleeve (905) is sleeved on the rubber roller outer barrel (904), two ends of a flexible roller sleeve (905) are respectively fixedly connected to roller sleeve supporting end plates (910) at corresponding ends, an end face cam (909) is arranged on the inner side of the roller sleeve supporting end plate (910), and a cam rolling body (915) arranged on the roller sleeve supporting end plate (910) is movably supported on the end face of the end face cam (909); the pattern roller (8) comprises a pattern roller inner cylinder (801), pattern roller end shafts (807) are fixedly supported at two ends of the pattern roller inner cylinder (801) through corresponding pattern roller end covers (806), the checkered roller end covers (806) at two ends are also fixedly provided with checkered roller outer cylinders (804), the inner cylinder wall of the checkered roller outer cylinder (804) is paved with a checkered roller semiconductor cooling cylinder (803), the cold end side of the checkered roller semiconductor cooling cylinder (803) is attached to the inner cylinder wall of the checkered roller outer cylinder (804), the cold end side of the checkered roller semiconductor cooling cylinder (803) is at the temperature of 39-40 ℃, a checkered roller cooling water cavity (802) is formed between the hot end side of the checkered roller semiconductor cooling cylinder (803) and the outer wall of the checkered roller inner cylinder (801), the riffled roller cooling water cavity (802) is communicated to riffled roller end shaft water holes (809) on a riffled roller end shaft (807) through riffled roller end cover water holes (805) on a riffled roller end cover (806); the grinding roller (7) comprises a grinding roller inner cylinder (701), grinding roller end rollers (706) are fixedly supported at two ends of the grinding roller inner cylinder (701) through corresponding grinding roller end covers (705), grinding roller outer cylinders (703) are fixedly mounted on the grinding roller end covers (705) at the two ends, a grinding roller cooling water cavity (702) is arranged between the grinding roller inner cylinder (701) and the grinding roller outer cylinder (703), the grinding roller cooling water cavity (702) is communicated to a grinding roller end shaft water hole (707) in the grinding roller end roller (706) through grinding roller end water holes (704) in the grinding roller end covers (705), the temperature of the cylinder wall of the grinding roller outer cylinder (703) ranges from 20 ℃ to 30 ℃, and the temperature of the first cooling roller (6) and the second cooling roller (5) ranges from 20 ℃ to 30 ℃.

2. The high precision temperature controlled film casting machine according to claim 1, wherein: the extrusion die (12) is suspended on a die holder (14); the heating lamp (10) is an infrared heating lamp, and the heating lamp (10) is fixedly arranged on the rack (1).

3. The high precision temperature controlled film casting machine according to claim 1, wherein: the flexible roller sleeve (905) is a soft rubber sleeve made of antistatic silicon rubber materials, and two ends of the flexible roller sleeve (905) are respectively glued on the shaft sleeve supporting end plates (910) at the corresponding ends.

4. The high precision temperature controlled film casting machine according to claim 1, wherein: the end cam (909) is a circular ring with different thicknesses, the lower side of the circular ring is movably supported on the cam seat (908) through a cam hinge supporting spherical surface (917), the upper side of the circular ring is supported on the cam seat (908) through an adjusting bolt (911), and the cam seat (908) is fixedly installed on the frame (1).

5. The high precision temperature controlled film casting machine according to claim 1, wherein: the cam rolling body (915) is a steel ball which is supported on the roller sleeve supporting end plate (910) through a fluid support (916); a plurality of cam rolling bodies (915) are arranged on the same circumference of the roller sleeve supporting end plate (910).

6. The high precision temperature controlled film casting machine according to claim 1, wherein: the center lines of the rubber roller inner barrel (901), the rubber roller outer barrel (904), the rubber roller semiconductor refrigerating barrel (903) and the rubber roller end shaft (913) are positioned on the same straight line.

7. The high precision temperature controlled film casting machine according to claim 1, wherein: the rubber roller semiconductor refrigeration cylinder (903) is electrically connected with a rubber roller conductive slip ring (912), and the rubber roller conductive slip ring (912) is sleeved on a rubber shaft end shaft (913).

8. The high precision temperature controlled film casting machine according to claim 1, wherein: concave-convex patterns are arranged on the surface of the outer cylinder of the patterned roller (804), the semiconductor cooling cylinder (803) of the patterned roller is electrically connected with the conductive sliding ring (808) of the patterned roller, the central lines of the inner cylinder (801) of the patterned roller, the outer cylinder (804) of the patterned roller and the end shaft (807) of the patterned roller are positioned on the same straight line, and the conductive sliding ring (808) of the patterned roller is sleeved on the end shaft (807) of the patterned roller.

9. The high precision temperature controlled film casting machine according to claim 1, wherein: the outer cylinder wall of the outer cylinder (703) of the sanding roller is a sanding surface, and the center lines of the inner cylinder (701) of the sanding roller, the outer cylinder (703) of the sanding roller and the end shaft (706) of the sanding roller are positioned on the same straight line.

10. The high precision temperature controlled film casting machine according to claim 1, wherein: the glue roller end axle water hole (914), the decorative pattern roller end axle water hole (809) and the frosted roller end axle water hole (707) are communicated to a circulating cold water source, and cold water roller cavities of the first cooling roller (6) and the second cooling roller (5) are communicated to the circulating cold water source.