CN111873463A - A new type of casting film machine capable of forming embossing on both sides of casting film - Google Patents

Abstract

The invention provides a novel cast film machine for forming embossing on two sides of a cast film, which comprises a primary plasticizing device, a die head, a forming device, a cooling device, a swinging device, a trimming device, a corona device, a winding device and a control device, and is characterized in that: the novel casting film machine with the embossing formed on two sides of the casting film can enable two sides of the casting film to form the embossing, the formed casting film is not prone to deformation in the later period, stiffness, hardness, flattening degree and false thickness of the casting film are increased, and cost can be reduced.

Description

A new type of casting film machine capable of forming embossing on both sides of casting film

technical field

The invention relates to the field of casting films, in particular to a novel casting film machine capable of forming embossing on both sides of the casting films.

Background technique

Cast film is a non-stretched, non-directional flat extrusion film produced by melt casting and quenching. There are two methods: single-layer casting and multi-layer co-extrusion casting. Compared with blown film, its It is characterized by fast production speed, high output, and excellent transparency, gloss and thickness uniformity of the film.

The existing casting film machine has the following problems: insufficient cooling, resulting in the accumulation of internal stress inside the casting film, and low output; unable to form embossing on both sides at the same time; without the second plasticizing device, the rigidity of the casting film is not enough; The embossing on the casting film is all realized by forming iron rolls, and the cost is too high. In order to solve the above problem, the present application provides a new type of casting film machine that can form embossing on both sides of the casting film.

SUMMARY OF THE INVENTION

Based on the deficiencies of the prior art, the purpose of the present invention is to provide a new type of casting film machine capable of forming embossing on both sides of the casting film, which is characterized in that it includes a first plasticizing device, a die, a forming device, Cooling device, rocking device, edge trimming device, corona device, winding device and control device, the first plasticizing device, the die head, the forming device, the cooling device, the rocking device, The trimming device, the corona device and the winding device are connected in sequence, the first plasticizing device, the die head, the forming device, the cooling device, the rocking device, the The trimming device, the corona device and the winding device are connected to the control device, and it is characterized in that it also includes a second plasticizing device, and the second plasticizing device is located between the cooling device and the cooling device. between the rocking devices and connected with the control device, the second plasticizing device includes a rubber roller (3), a rubber roller (4), a cooling roller (2), a cooling roller (3) and a heating roller, The heating roller, the cooling roller (2), the cooling roller (3), and the rubber roller (4) The outer surface is provided with lines or patterns, the rubber roller (3) is located above the cooling roller (3), the rubber roller (4) is located above the cooling roller (2), and the heating roller is located at the between the cooling roll (2) and the cooling roll (3).

As an improvement of the new type of casting film machine that embosses on both sides of the casting film of the present invention, the rubber roller (4) and the cooling roll of the new type of casting film machine of the present invention make embossing on both sides of the casting film (2) The range of the ratio of the pulling speed of the opposite pressure to the pulling speed of the rubber roller (3) and the cooling roller (3) is 1.05-2.

As an improvement of the novel casting film machine of the present invention that embosses both sides of the casting film, the surface layer or surface of the rubber roller (4) of the new casting film machine of the present invention that forms embossing on both sides of the casting film Carborundum or similar sand grains of 200 to 2500 mesh are evenly distributed, the surfaces of the cooling roll (3) and the heating roll are smooth or frosted or similar sand grains, the cooling roll (2), the cooling roll (3) Located on the A side of the casting film, the heating roller is located on the B side of the casting film.

As an improvement of the new type of casting film machine of the present invention that embosses both sides of the cast film, the rubber roller (3) and the cooling device of the new type of casting film machine of the present invention to form embossing on both sides of the cast film The rollers (3) are pressed against each other or not, and the rubber roller (4) is pressed against the cooling roller (2).

As an improvement of the new type of casting film machine for forming embossing on both sides of the casting film of the present invention, the molding device of the new type casting film machine for forming embossing on both sides of the casting film includes forming iron rolls, silica gel The forming iron roller is located on the B side of the casting film, the silicone rubber roller is located on the A side of the casting film, and the silicone rubber roller and the forming iron roller are pressed against each other.

As an improvement of the new type of casting film machine that forms embossing on both sides of the casting film of the present invention, the axis of the forming iron roll of the new type of casting film machine of the present invention that forms embossing on both sides of the casting film and the The axis of the silicone roller is on the same horizontal plane, the forming iron roller and the silicone roller are provided with flow channels, and the outer surface of the forming iron roller is provided with lines or patterns.

As an improvement of the new type of casting film machine that embosses on both sides of the casting film of the present invention, the silicone roller and the rubber roller ( 4) The surface layer or surface is evenly distributed with 200 to 2500 mesh emery or similar sand grains, and the diameter of the cross section of the cooling roll (2) is smaller than the diameter of the cross section of the forming iron roll.

As an improvement of the new type of casting film machine for forming embossing on both sides of the casting film of the present invention, the cooling device of the new type casting film machine for forming embossing on both sides of the casting film comprises a rubber roller (2) and A cooling roller (1), the rubber roller (2) is pressed against the cooling roller (1), the rubber roller (2) is located on the B side of the casting film, and the cooling roller (1) is located on the casting film side A.

As an improvement of the new type of casting film machine that embosses on both sides of the casting film of the present invention, the two ends of the edge trimming device of the new type of casting film machine that forms embossing on both sides of the casting film are provided with blades. .

As an improvement of the novel casting film machine of the present invention for forming embossing on both sides of the casting film, the corona device of the new casting film machine for forming embossing on both sides of the casting film of the present invention includes a high voltage discharge machine.

As an improvement of the new type of casting film machine that embosses on both sides of the cast film of the present invention, the winding device of the new type of casting film machine of the present invention that forms embossing on both sides of the cast film includes a winding shaft, an automatic alarm a blower, an anti-static brush, a hair dryer and a power source, the power source drives the reeling shaft to rotate.

As an improvement of the new type of casting film machine of the present invention for forming embossing on both sides of the casting film, the new type of casting film machine for forming embossing on both sides of the casting film further comprises a recovery device, the recovery device and the Edge trimming device connection.

Compared with the prior art, the novel casting film machine of the present invention that forms embossing on both sides of the casting film has the following beneficial effects: because the surfaces of the forming iron roll and the cooling roll (2) are provided with lines or patterns , the forming iron roller is pressed against the silicone roller to print the pattern or pattern of the forming iron roller on the A side of the cast film, and the rubber roller (4) is pressed against the cooling roller (2). The lines or patterns of the cooling roller (2) are printed on the B side of the cast film, so that embossing is formed on both sides of the cast film; since both the forming device and the cooling device of the present invention play a cooling role, the first The secondary plasticizing device also includes a cooling roller (3) that also plays a cooling role, so that the cooling distance is long enough, so that the speed of the molding device can be increased, so that the production efficiency and production capacity can be increased; The heating roller of the second plasticizing device heats the cast film to soften the cast film, and the traction speed of the rubber roller (4) and the cooling roller (2) is higher than that of the rubber roller. (3) The pulling speed against the cooling roller (3) is fast, and the heating roller can prolong the crystallization time, so as to stretch the cast film longitudinally, change the molecular structure of the cast film, and reduce the casting time. The internal stress inside the film is plasticized for the second time, the cast film is not easily deformed in the later stage, the flatness is good, and the stiffness, hardness and false thickness of the cast film are also increased; the cast film of the present invention has embossing on both sides , the surfaces of the forming iron roll and the cooling roll (2) are provided with lines or patterns, so that embossing is formed on both sides of the cast film. Since users have different requirements for the shape of the embossing, different embossing requirements are required in the present invention. Different embossed forming iron rolls and cooling rolls (2), in the prior art, the cast film has only one side with lines or patterns, and the lines or patterns are formed by the forming iron rolls. Two forming iron rolls are required for embossing, and each embossing needs to match two forming iron rolls with corresponding lines or patterns, because the diameter of the cross section of the cooling roll (2) is smaller than the forming iron The diameter of the cross section of the roll, and the cooling roll (2) is simpler than the forming iron roll in terms of internal structure, simple manufacturing process, convenient replacement, and short production time period, so the cost of a cooling roll (2) is much lower than the current cost. In the prior art forming iron rolls, in this application, the cooling roll (2) is used to replace one of the forming iron rolls, thereby reducing the cost of the casting film machine.

Description of drawings

1 is a schematic structural diagram of the new type of casting film machine for forming embossing on both sides of the casting film according to a preferred embodiment of the present invention.

Fig. 2 shows the molding device and the cooling of the new type of casting film machine for embossing on both sides of the casting film according to the preferred embodiment of the present invention. Schematic diagram of the installed structure.

FIG. 3 is the second plasticizing device of the new type of casting film machine for embossing on both sides of the casting film according to the preferred embodiment of the present invention. Schematic diagram of the structure.

4 is a schematic structural diagram of the winding device of the new type of casting film machine for embossing on both sides of the casting film according to the preferred embodiment of the present invention. .

Detailed ways

The present invention makes the new type casting film machine capable of forming embossing on both sides of the casting film is suitable for producing various casting films.

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the preferred embodiment of the novel casting film machine for forming embossing on both sides of the casting film of the present invention will be described in detail.

In this embodiment, the novel cast film machine of the present invention for forming embossing on both sides of the cast film includes a feeding extrusion device 1, a die head 2, a forming device 3, a cooling device 4, and a second plasticizing device. Device 5, rocking device 6, trimming device 7, corona device 8, winding device 9 and control device 10, the feeding extrusion device 1, the die head 2, the forming device 3, the cooling device The device 4, the second plasticizing device 5, the rocking device 6, the trimming device 7, the corona device 8 and the winding device 9 are connected in sequence, and the feeding and extruding device 1 , the die 2, the molding device 3, the cooling device 4, the second plasticizing device 5, the rocking device 6, the edge trimming device 7, the corona device 8 and the The winding device 9 is connected to the control device 10, and the second plasticizing device 5 includes a rubber roller (3) 5.1, a rubber roller (4) 5.2, a cooling roller (2) 5.3, and a cooling roller (3) 5.4 and heating roller 5.5, the rubber roller (4) 5.1 is located on the B side of the cast film, the cooling roller (3) 5.4, the heating roller 5.5, the cooling roller (2) 5.3, the rubber roller ( 3) 5.1 and the rubber roller (4) 5.2 are provided with flow channels, the rubber roller (3) 5.1 is pressed against the cooling roller (3) 5.4, and the outer surface of the cooling roller (2) 5.3 is provided with There are lines or patterns, so that the B side of the cast film is embossed, the rubber roller (3) 5.1 is located above the cooling roller (3) 5.4, the rubber roller (4) 5.2 and the cooling roller ( 2) Press 5.3, the rubber roller (4) 5.2 is located above the cooling roller (2) 5.3, and the heating roller 5.5 is located between the cooling roller (2) 5.3 and the cooling roller (3) 5.4 time, refer to Figures 1 and 3.

In this embodiment, the drawing speed of the rubber roller (4) 5.2 and the cooling roller (2) 5.3 of the novel casting film machine of the present invention for forming embossing on both sides of the casting film is the same as the The range of the ratio of the traction speed between the rubber roller (3) 5.1 and the cooling roller (3) 5.4 is 1.05-2.

In this embodiment, the surface layer or surface of the rubber roller (4) 5.2 of the new type casting film machine of the present invention for forming embossing on both sides of the casting film is uniformly distributed with 200-2500 mesh emery or similar sand particles, so The surfaces of the cooling roller (3) 5.4 and the heating roller 5.5 are smooth surfaces, the cooling roller (2) 5.3 and the cooling roller (3) 5.4 are located on the A side of the casting film, and the heating roller is located on the flow surface. Extend the B side of the film.

In this embodiment, the rubber roller (3) 5.1 and the cooling roller (3) 5.4 of the novel casting film machine of the present invention for embossing on both sides of the cast film are pressed against each other or not, the The rubber roller (4) 5.2 is pressed against the cooling roller (2) 5.3.

Referring to FIG. 2 , in this embodiment, the forming device 3 of the novel cast film machine of the present invention for forming embossing on both sides of the cast film includes a forming iron roll 3.1, a silicone roll 3.2, and the forming iron roll 3.1 is located on the B side of the casting film, the silicone roller 3.2 is located on the A side of the casting film, the silicone roller 3.2 is pressed against the forming iron roller 3.1, and the outer surface of the forming iron roller 3.1 is provided with The texture or pattern makes the A side of the cast film form embossing.

In this embodiment, the diameter of the cross section of the cooling roll (2) 5.3 of the novel casting film machine of the present invention for forming embossing on both sides of the casting film is smaller than the diameter of the cross section of the forming iron roll.

In this embodiment, the diameter of the cross-section of the forming iron roll 3.1 of the novel casting film machine of the present invention that embosses both sides of the cast film is larger than the diameter of the cross-section of the silicone roll 3.2, so The axis of the forming iron roller 3.1 and the axis of the silicone roller 3.2 are on the same level. Oil or other liquid substances cool the cast film.

In this embodiment, the surface layer or surface of the silicone roller 3.2 and the rubber roller (4) 5.2 of the new type casting film machine of the present invention for forming embossing on both sides of the casting film is uniformly distributed with 200 to 2500 Purpose Emery or similar grit.

Referring to FIG. 2, in this embodiment, the cooling device 4 of the novel casting film machine of the present invention for forming embossing on both sides of the casting film includes a rubber roller (2) 4.1 and a cooling roller (1) 4.2, so The rubber roller (2) 4.1 is pressed against the cooling roller (1) 4.2, the rubber roller (2) 4.1 is located on the B side of the casting film, and the cooling roller (1) 4.2 is located on the A side of the casting film .

In the present embodiment, the two ends of the edge trimming device 7 of the novel casting film machine of the present invention for embossing both sides of the casting film are provided with blades 7.1 for cutting off the excess parts on both sides of the casting film.

In this embodiment, the corona device 8 of the novel casting film machine of the present invention for forming embossing on both sides of the casting film includes a high-voltage discharge machine 8.1. The ink penetrates in and prints.

Referring to FIG. 4, in this embodiment, the rewinding device 9 of the novel casting film machine of the present invention for forming embossing on both sides of the casting film comprises a winding shaft 9.1, an automatic alarm 9.2, an antistatic brush 9.3, Hair dryer 9.4, the automatic alarm 9.2 alarms according to the set length of the cast film.

In this embodiment, the novel casting film machine of the present invention for forming embossing on both sides of the casting film further includes a recovery device 12 , and the recovery device 12 is connected to the edge trimming device 7 .

In the present embodiment, the specific working process of the new-type casting film machine that makes the casting film embossed on both sides is as follows:

The first step is to first form the raw material into a molten state, extrude the molten raw material to the position of the die head 2, and flow out through the flow channel in the die head 2 to form a cast film, and the die head 2 can adjust the flow rate. The thickness of the cast film makes all parts of the cast film uniform;

In the second step, the film comes between the forming iron roller 3.1 and the silicone roller 3.2. The surface layer or surface of the silicone roller 3.2 is evenly distributed with 200-2500 mesh emery or similar sand particles. The forming iron roller 3.1 is located on the B side of the casting film, the silicone roller 3.2 is located on the A side of the casting film, and the surface of the forming iron roller 3.1 is provided with lines or patterns, because the silicone roller 3.2 is soft , the silicone roller 3.2 is pressed against the forming iron roller 3.1, and the embossing of the forming iron roller 3.1 is printed on the surface A of the casting film, so the surface A of the casting film is embossed, and the forming iron The roller 3.1 and the silica gel roller 3.2 are provided with water passages inside, which can cool, crystallize and shape the cast film;

In the third step, the casting film comes to the cooling device 4 for cooling, the rubber roller (2) 4.1 is located on the B side of the casting film, and the cooling roller (1) 4.2 is located on the A side of the casting film, so The rubber roller (2) 4.1 is pressed against the cooling roller (1) 4.2 to play a traction effect, and the cooling roller (1) 4.2 is provided with a flow channel for cooling the cast film;

The fourth step, then enter the second plasticizing device 5, the rubber roller (4) 5.2 is located on the B side of the cast film, the surface of the cooling roller (2) 5.3 is provided with lines or patterns, the rubber The surface layer or surface of the roller (4) 5.2 is evenly distributed with 200 to 2500 mesh emery or similar sand particles, the cooling roller (3) 5.4 is pressed against the rubber roller (3) 5.1 to form a pair of traction, the heating roller 5.5 The cast film is heated, and the cast film comes between the rubber roller (4) 5.2 and the cooling roller (2) 5.3, and the rubber roller (4) 5.2 and the cooling roller (2) 5.3 are pressed together to form Therefore, the B side of the cast film forms embossing, the cooling roller (2) 5.3 has water flowing through the internal flow channel, and the rubber roller (4) 5.2 and the cooling roller (2) 5.3 press against each other to form the speed of traction. The speed ratio between the rubber roller (3) 5.1 and the cooling roller (3) 5.4 to form traction is 1.15. Due to the difference in speed, the temperature is heated to about 60 degrees by passing hot water in the heating roller, so that the casting The film is stretched longitudinally, resulting in tension, changing the molecular structure of the casting film, and reducing the internal stress. If there is no heating roller to heat the casting film to soften, the casting film will be stretched and deformed longitudinally or even broken due to different speeds. It can plasticize the cast film for the second time, prolong the crystallization time, and increase the stiffness, hardness, flatness and false thickness of the cast film;

In the fifth step, the cast film enters the rocking device 6, and the cast film is swayed, so that the center of the cast film moves left and right, so as to avoid the process of forming a roll of the cast film in some places and thin in some places, which affects the appearance. , the rocking makes the cast film form an average thickness;

The 6th step, cast film enters described trimming device 7, and described blade cuts both sides of cast film, and the size of the cut can be realized by adjusting the position of the blade, and the cut part is recovered by the recovery device;

In the seventh step, the casting film enters the corona device 8, and the corona device includes a high-voltage discharge machine, and the surface of the casting film is punched through the high-voltage discharge to make small holes so that the ink can penetrate into it to facilitate printing;

The eighth step, the cast film enters the rewinding device 9, the cast film generates static electricity in the production process, the anti-static brush is used to remove static electricity, and the blower blows the cast film with cold air to cool the surface of the cast film again, By setting different meters of the cast film, when the cast film reaches the set value, the automatic alarm will automatically alarm to complete the production of one roll of cast film.

Compared with the prior art, the present invention has the following beneficial effects: since the surfaces of the forming iron roll and the cooling roll (2) are provided with lines or patterns, the pressing of the forming iron roll and the silicone The lines or patterns of the forming iron roller are printed on the A side of the cast film, and the rubber roller (4) is pressed against the cooling roller (2) to print the lines or patterns of the cooling roller (2) on the stream. The B side of the film is stretched, so that embossing is formed on both sides of the cast film; since the forming device and the cooling device of the present invention both play a cooling role, the second plasticizing device also includes a cooling roller (3), which also plays a role in cooling. Due to the cooling effect, the cooling distance is long enough, so that the speed of the molding device can be increased, so that the production efficiency and production capacity can be increased; due to the use of the second plasticizing device, the heating roller of the second plasticizing device convects The casting film is heated to soften the casting film, and the pulling speed of the rubber roller (4) and the cooling roller (2) under the pressure is higher than the pulling speed of the rubber roller (3) and the cooling roller (3). The speed is fast, and the heating roller can prolong the crystallization time, so as to stretch the cast film longitudinally, change the molecular structure of the cast film, reduce the internal stress inside the cast film, and carry out the second plasticization and casting. The film is not easily deformed in the later stage, the flatness is good, and the stiffness, hardness and false thickness of the casting film are also increased; embossing is formed on both sides of the cast film. Since users have different requirements for the shape of the embossing, in the present invention, different embossing requires different embossing forming iron rolls and cooling rolls (2). In the prior art, only one side of the cast film is provided with lines or patterns, and the lines or patterns are formed by forming iron rolls. If embossing is to be formed on both sides of the cast film, two forming iron rolls are required, each of which is embossed. Both need to match two forming iron rolls with corresponding lines or patterns, because the diameter of the cross section of the cooling roll (2) is smaller than the diameter of the cross section of the forming iron roll, and the cooling roll (2) is smaller than the forming iron roll (2). The internal structure of the iron roll is simple, the production process is also simple, the replacement is convenient, and the production time period is short, so the cost of a cooling roll (2) is far lower than that of the forming iron roll in the prior art, and the cooling roll is used in this application. (2) One of the forming iron rolls is replaced, thereby reducing the cost of the cast film machine.

The above disclosures are only preferred embodiments of the present invention, and of course, the scope of the rights of the present invention cannot be limited by this. Therefore, the equivalent changes made according to the scope of the patent application of the present invention are still within the scope of the present invention.

Claims (12)

1. The utility model provides a make curtain coating membrane two sides all form novel curtain coating membrane machine of impressed watermark, includes plasticizing device, die head, forming device, cooling device, sways device, side cut device, corona unit, coiling mechanism and controlling means for the first time, plasticizing device for the first time the die head forming device cooling device sway the device the side cut device corona unit with the coiling mechanism connects gradually, plasticizing device for the first time the die head forming device the cooling device sway the device the side cut device corona unit with the coiling mechanism with controlling means connects its characterized in that: still include the plastify device of second time, the plastify device of second time is located cooling device with sway between the device and with controlling means connects, the plastify device of second time includes rubber roll (3), rubber roll (4), chill roll (2), chill roll (3) and warming mill, the warming mill the chill roll (2) the chill roll (3) with rubber roll (4) be equipped with the runner in rubber roll (3), the surface of chill roll (2) is equipped with line or decorative pattern, rubber roll (3) are located the top of chill roll (3), rubber roll (4) are located the top of chill roll (2), the warming mill is located chill roll (2) with between chill roll (3).

2. The novel cast film machine for embossing both sides of a cast film according to claim 1, characterized in that: the range value of the ratio of the traction speed of the rubber roller (4) and the cooling roller (2) in the pressing direction to the traction speed of the rubber roller (3) and the cooling roller (3) in the pressing direction is 1.05-2.

3. The novel cast film machine for embossing both sides of a cast film according to claim 2, characterized in that: the surface layer or the surface of the rubber roll (4) is uniformly distributed with 200-2500 meshes of carborundum or similar sand grains, the surfaces of the cooling roll (3) and the heating roll are smooth surfaces or frosted or similar sand grains, the cooling roll (2) and the cooling roll (3) are positioned on the surface A of the casting film, and the heating roll is positioned on the surface B of the casting film.

4. A novel cast film machine for embossing both sides of a cast film according to claim 3, characterized in that: the rubber roller (3) and the cooling roller (3) are pressed against each other or not, and the rubber roller (4) and the cooling roller (2) are pressed against each other.

5. The novel cast film machine for embossing both sides of a cast film according to claim 4, characterized in that: the forming device comprises a forming iron roller and a silica gel roller, the forming iron roller is located on the surface B of the casting film, the silica gel roller is located on the surface A of the casting film, and the silica gel roller is in butt-pressing with the forming iron roller.

6. The novel cast film machine for embossing both sides of a cast film according to claim 5, characterized in that: the axis of the forming iron roller and the axis of the silica gel roller are on the same horizontal plane, a flow channel is arranged in the forming iron roller and the silica gel roller, and lines or patterns are arranged on the outer surface of the forming iron roller.

7. The novel cast film machine for embossing both sides of a cast film according to claim 6, characterized in that: the surface layers or the surfaces of the silica gel roller and the rubber roller (4) are uniformly distributed with 200-2500 meshes of carborundum or similar sand grains, and the diameter of the cross section of the cooling roller (2) is smaller than that of the cross section of the molding iron roller.

8. The novel cast film machine for embossing both sides of a cast film according to claim 7, characterized in that: the cooling device comprises a rubber roller (2) and a cooling roller (1), the rubber roller (2) and the cooling roller (1) are pressed oppositely, the rubber roller (2) is located on the surface B of the casting film, and the cooling roller (1) is located on the surface A of the casting film.

9. The novel cast film machine for embossing both sides of a cast film according to claim 8, characterized in that: and blades are arranged at two ends of the edge cutting device.

10. The novel cast film machine for embossing both sides of a cast film according to claim 9, characterized in that: the corona device includes a high voltage discharge machine.

11. The novel cast film machine for embossing both sides of a cast film according to claim 10, characterized in that: the winding device comprises a winding shaft, an automatic alarm, an anti-static brush, a blower and a power source, wherein the power source drives the winding shaft to rotate.

12. The novel cast film machine for embossing both sides of a cast film according to claim 11, characterized in that: still include recovery unit, recovery unit with the side cut device is connected.

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