CN210501290U

CN210501290U - Film side edge shaping system for casting machine

Info

Publication number: CN210501290U
Application number: CN201921258539.1U
Authority: CN
Inventors: 王逸飞
Original assignee: Wuxi Zhenfei New Packaging Material Co Ltd
Current assignee: Wuxi Zhenfei New Packaging Material Co Ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-05-12
Anticipated expiration: 2029-08-05

Abstract

The utility model relates to a film side shaping system for casting machine, including frame, discharging device and the air knife that nozzle length and cooling roller's roll surface width are unanimous, the nozzle of air knife blows off the air current, blows to the material of fuse state evenly unanimously, still include the cavity play flitch that can dismantle the discharge gate department of connecting in discharging device, and the cavity play flitch is perpendicular to ground and extrudes the material, and extrude the material and contact with the cooling roller in the tangent point department of the extension line of cavity play flitch and cooling roller, the distance of the nearly cooling roller end of cavity play flitch apart from the roll surface of cooling roller is greater than the thickness of the material that it extrudes; the utility model discloses have safe technological effect who carries out the side design.

Description

Film side edge shaping system for casting machine

Technical Field

The utility model belongs to the technical field of the technique that the curtain coating membrane was made and specifically relates to a film side design system for casting machine is related to.

Background

The plastic film casting machine extrudes molten plastic film raw materials onto a cooling roller through an extrusion die head through an extrusion mechanism, the plastic film raw materials are stretched along the rotation direction of the cooling roller through the rotation of the cooling roller, the plastic film raw materials are stretched to a straight plastic film through the traction of a traction mechanism after the plastic film is cooled and formed by the cooling roller, and then the plastic film raw materials are wound and packaged on a winding machine, and the plastic film casting machine is mainly used for producing various plastic films, such as the cast film of PE, EVA, LDPE and other materials.

In the prior art, reference can be made to a utility model patent with an authorization publication number of CN204749225U, and the utility model discloses a film side edge shaping system for a casting machine, which comprises electrode lockers respectively arranged at two ends of a cooling roller of the casting machine, wherein the discharge ends of the electrode lockers point to the roller surface of the cooling roller of the casting machine; this system is still including arranging the air-cooled pipe that is used for the pre-setting before electrode serging ware lockstitching preface, and casting machine cooling roller both ends department is arranged in equally to this air-cooled pipe, the regional roll surface department that is located one section cooling roller between the T type structure forming die discharge gate of casting machine and electrode serging ware discharge area that air-cooled pipe air outlet, and this air-cooled regional all is located predetermined diaphragm side department that needs to design with the discharge area of electrode serging ware, and it can effectually realize the pre-lockstitching effect to current diaphragm, avoids the not enough situation of film width that leads to because of diaphragm side shrink excessively to promote the operational reliability of follow-up electrode serging ware.

The above prior art solutions have the following drawbacks: the cold air pipe blows the molten material, and if the blowing pressure is unstable, a person standing beside the cold air pipe may splash onto the person to scald the person.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a film side design system for casting machine, the utility model discloses have safe technological effect who carries out the side design.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a film side design system for casting machine, which comprises a frame, discharging device and nozzle length and the unanimous air knife of the roll surface width of chill roll, the nozzle of air knife blows off the air current, blow to the material of melt-state uniformly unanimously, still including dismantling the cavity play flitch of connecting in discharging device's discharge gate department, the material is extruded on cavity play flitch perpendicular to ground, and extrude the material and contact with the chill roll in the tangent point department of the extension line of cavity play flitch and chill roll, the distance that the nearly chill roll end of cavity play flitch is greater than the thickness of its material of extruding from the roll surface of chill roll.

Through adopting above-mentioned technical scheme, the distance of material apart from the chill roll through the discharge gate department that reduces discharging device reduces the distance that moves when extruding the material and not reach the chill roll, can prevent effectively more and safely that the material from coming out discharging device after, before arriving electrode lockstitch ware begin to produce the shrink-edge phenomenon. The air current of air knife spun can make the curtain coating film hug closely on cooling roller working face to reach the even cooling down's of curtain coating film effect.

The utility model discloses further set up to: two opposite surfaces of the inner surface of the upper part of the hollow discharging plate are respectively provided with a female buckle, and two corresponding sides of the outer surface of the end part of the discharging device at the discharging port are respectively and fixedly connected with a male buckle.

Through adopting above-mentioned technical scheme, pin thread and box correspond the fastening nature that the connection of discharge device and cavity play flitch that the lock can guarantee discharge gate department, prevent that cavity play flitch from droing.

The utility model discloses further set up to: the film cooling device is characterized by further comprising an extrusion roller for controlling the thickness of the side edge of the film, the extrusion roller is rotatably connected with the racks on the two sides of the cooling roller, the central shaft of the extrusion roller and the central shaft of the cooling roller are on the same horizontal plane, the air knife is located in front of the material advancing direction of the extrusion roller, air blows towards the gap between the extrusion roller and the cooling roller, and the gap between the extrusion roller and the cooling roller is equal to the thickness of the film.

Through adopting above-mentioned technical scheme, set up the squeeze roll and make its thickness that equals the film with the clearance of chill roll, can guarantee that the edge of film and central thickness are even.

The utility model discloses further set up to: the frame of chill roll both sides is seted up the horizontal hole, and the horizontal hole is stretched out at the center pin both ends of squeeze roll, and the one end fixedly connected with of the center pin of squeeze roll has a coaxial drive motor, and the center pin of squeeze roll is coaxial fixed with the output shaft of motor.

Through adopting above-mentioned technical scheme, set up coaxial driving motor and can control the slew velocity of squeeze roll, make the surface linear velocity of squeeze roll and the surface linear velocity of chill roll keep unanimous.

The utility model discloses further set up to: the movable platform is arranged on the outer side of the frame on one side of the motor, the roller assemblies are connected to the bottom of the platform in a rolling mode, the platform is connected with the frame in an adjustable positioning mode, and the base of the motor is fixedly connected to the platform.

Through adopting above-mentioned technical scheme, can make the output shaft of motor and the center pin of squeeze roll keep same level through the platform.

The utility model discloses further set up to: the periphery of the upper part of the platform is fixedly connected with a square baffle.

Through adopting above-mentioned technical scheme, can place the thing temporarily, can prevent that the motor from dropping down the platform.

The utility model discloses further set up to: the end of the central shaft of the squeeze roll, which is far away from the motor, is provided with a spherical outside bearing with a seat, a bearing seat of the spherical outside bearing with the seat is connected with the frame in an adjustable positioning way, and an inner ring bearing part is fixedly connected with the central shaft of the squeeze roll.

Through adopting above-mentioned technical scheme, the one end of keeping away from the motor at the center pin sets up the bearing, can guarantee that the center pin can realize rotating when fixed.

The utility model discloses further set up to: the frame is equipped with and has seted up first bolt adjustment tank on the motor one side, and first bolt adjustment tank is located the horizontal hole lower part, and the movable platform side is close to one side of frame and has seted up first screw hole, and frame and platform are connected with first bolt locating pin.

Through adopting above-mentioned technical scheme, can adjust the clearance between squeeze roll and the chill roll through the bolt to carry out clearance adjustment according to the thickness of different films.

The utility model discloses further set up to: the cooling roll is characterized by further comprising annular side baffles fixedly connected to two sides of the cooling roll, the inner edges of the annular side baffles are smoothly and fixedly connected with the outer surface of the cooling roll, and the distance between the two annular side baffles is equal to the width of the film after the film is uniformly spread in equal thickness.

Through adopting above-mentioned technical scheme, set up annular side shield and can prevent that the material under the molten condition from being extruded by the squeeze roll to some local film thickness is uneven.

The utility model discloses further set up to: the side edge of the squeeze roll is mutually abutted with the annular side baffle, the contact surface of the annular side baffle and the squeeze roll is uniform and smooth, and the friction force generated by the contact of the annular side baffle and the squeeze roll does not interfere with the rotation of the squeeze roll and the cooling roll.

Through adopting above-mentioned technical scheme, make the two butt and set up smooth contact surface and can prevent that the film edge from being extruded, can prevent again that annular side shield from hindering the motion of squeeze roll's self, prevent that squeeze roll from causing improper tensile to the film.

To sum up, the utility model discloses a beneficial technological effect does:

1. the distance of the extruded material not reaching the cooling roller is reduced by reducing the distance between the material at the discharge port of the discharging device and the cooling roller, so that the phenomenon of edge shrinkage caused by the material after exiting the discharging device and before reaching the electrode edge locking device can be more effectively and safely prevented; the air current of air knife spun can make the curtain coating film hug closely on cooling roller working face to reach the even cooling down's of curtain coating film effect.

2. The extrusion roller is additionally arranged, so that the thickness of the edge and the center of the film is more uniform, the surface linear velocity of the extrusion roller is consistent with that of the cooling roller, the extrusion roller can only extrude the material, and the property of the material is not changed.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a partial sectional view of the plane a-a in fig. 1.

Fig. 3 is a schematic partial structure diagram of the first bolt adjusting groove of the present invention.

Fig. 4 is a partial structural schematic view of a seated spherical outer bearing.

Reference numerals: 1. a discharging device; 11. a male buckle; 2. a hollow discharging plate; 21. a female buckle; 22. a film; 3. a cooling roll; 32. an annular side dam; 4. a frame; 41. a horizontal hole; 42. a first bolt adjustment slot; 43. a first bolt locating pin; 5. a squeeze roll; 6. an air knife; 61. a nozzle; 7. a motor; 71. an output shaft; 72. a base; 8. a platform; 81. a first threaded hole; 82. a square baffle plate; 83. a roller assembly; 9. an outer spherical bearing with a seat; 91. an inner ring bearing portion; 92. a bearing seat; 921. a second threaded hole; 93. a second bolt adjustment slot; 94. a second bolt locating pin; 95. and a nut.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, in order to disclose the utility model, a film side shaping system for a casting machine comprises a frame 4 and a discharging device 1, wherein a discharging port of the discharging device 1 is connected with a hollow discharging plate 2 in a buckling manner, two wider surfaces of the inner surface of the hollow discharging plate 2 are provided with female buckles 21, the surface of the outer part of the discharging device 1 at the discharging port corresponding to the hollow discharging plate 2 is fixedly connected with a male buckle 11, and the male buckle 11 and the female buckle 21 are correspondingly clamped to realize the buckling connection of the hollow discharging plate 2 and the discharging device 1 at the discharging port; the hollow discharging plate 2 is vertically downward, an outlet extends to a position close to the roller surface of the cooling roller 3, the gap between the hollow discharging plate and the roller surface of the cooling roller 3 is larger than the thickness of extruded materials, and the materials are contacted with the cooling roller 3 at the tangent point of the extension line of the roller surface of the cooling roller 3 extended from the hollow discharging plate 2 after coming out of the hollow discharging plate 2 and are adhered to the cooling roller 3 to be cooled and formed into a film.

Referring to fig. 1 and 2, a squeeze roll 5 is rotatably connected to the frame 4 on both sides of the cooling roll 3, and the central axis of the squeeze roll 5 and the central axis of the cooling roll 3 are located on the same horizontal plane, so that the squeeze roll 5 does not interfere with the shape of the molten material in advance, and the necking phenomenon of the side of the film 22 can be prevented at the first time when the material contacts the cooling roll 3, and the edge thickness of the film 22 is controlled to be in a state consistent with the central thickness; the end part of the cooling roller 3 is also fixedly connected with an annular side baffle 32, the surface of the joint of the annular side baffle 32 and the cooling roller 3 is smooth and flat, the inner side surface of the annular side baffle 32 is smooth and flat and abuts against the squeeze roller 5, the round surfaces at two sides of the squeeze roller 5 are smooth and flat, the friction force generated by the contact surfaces of the inner side of the annular side baffle 32 and the round surfaces at two sides of the squeeze roller 5 does not hinder the rotation of the cooling roller 3 and the squeeze roller 5, the smooth surface can prevent the annular side baffle 32 from hindering the self movement of the squeeze roller 5, and the squeeze roller 5 from inappropriately stretching the film 22; an air knife 6 with a nozzle 61 length consistent with the width of the roller surface of the cooling roller 3 is arranged in front of the extrusion roller 5 in the material advancing direction, and the nozzle 61 of the air knife 6 blows air flow to uniformly and uniformly blow the material to the gap part between the extrusion roller 5 and the cooling roller 3.

Referring to fig. 1 and 3, a platform 8 is arranged beside the frame 4, a first threaded hole 81 is formed in the side portion of the platform 8, a first bolt adjusting groove 42 is formed in a position, corresponding to the first threaded hole 81, of the frame 4, the first bolt adjusting groove 42 is located at the lower portion of the horizontal hole 41, the platform 8 is connected with the frame 4 through a first bolt positioning pin 43, the first bolt positioning pin 43 penetrates through the first bolt adjusting groove 42 from the inner side of the frame 4 and is in threaded connection and locking with the first threaded hole 81 to fix the position of the platform 8, and the relative position of the platform 8 and the frame 4 can be adjusted by loosening the first bolt positioning pin 43; horizontal holes 41 are formed in the machine frame 4 on two sides of the cooling roller 3, two ends of a central shaft of the squeezing roller 5 extend out of the two sides of the machine frame 4 from the horizontal holes 41, one end of the squeezing roller 5 is coaxially and fixedly connected with a motor 7, the motor 7 is used for controlling the rotating speed of the squeezing roller 5, so that the surface linear velocity of the squeezing roller is kept consistent with the surface linear velocity of the cooling roller 3, the central shaft of the cooling roller 3 is coaxially and fixedly connected with an output shaft 71 of the motor 7, and a base 72 of the motor 7 is fixed on the platform 8; platform 8 upper portion fixedly connected with square baffle 82 can place the thing temporarily, and prevents that motor 7 from dropping platform 8 down, and platform 8 bottom roll connection has wheel components 83, can make things convenient for platform 8 to remove.

Referring to fig. 1 and 4, a seated spherical outer bearing 9 is disposed at one end of the central shaft of the squeeze roller 5, which is away from the motor 7, an inner ring bearing portion 91 of the seated spherical outer bearing 9 is fixedly connected with the long central shaft of the cooling roller 3, a bearing seat 92 adopts a diamond seat, two ends of the bearing seat 92 are provided with second threaded holes 921, two second bolt adjusting grooves 93 are disposed at positions on the frame 4 corresponding to the second threaded holes 921, the second bolt adjusting grooves 93 are distributed at upper and lower sides of the horizontal hole 41, the bearing seat 92 is connected with the frame 4 through second bolt positioning pins 94, the second bolt positioning pins 94 penetrate through the second threaded holes 921 and the second bolt adjusting grooves 93 from the outer side of the frame 4, the second bolt positioning pins 94 are in threaded connection with the two, the extending end portions of the second bolt positioning pins 94 are locked by nuts 95, and the seated spherical outer bearing 9 is fixed with the frame 4 after locking, loosening the second bolt positioning pin 94 can adjust the relative position of the seated spherical-outer bearing 9 and the frame 4, thereby adjusting the gap between the squeeze roll 5 and the cooling roll 3.

The implementation principle of the embodiment is as follows: the molten material is extruded from the discharging device 1 into the hollow discharging plate 2, and is extruded through the hollow discharging plate 2, and after reaching the roll surface of the cooling roll 3, the molten material passes through the gap between the extrusion roll 5 and the cooling roll 3, the extrusion roll 5 and the cooling roll 3 rotate in the uniform speed and reverse direction, the surface linear speeds of the two surfaces are kept consistent, the thickness of the edge of the material controlled by the extrusion roll 5 is kept consistent with the central part, the annular side baffle 32 can prevent the extrusion roll 5 and the cooling roll 3 from extruding the width of the edge of the material to be uneven, the air flow blown out by the air knife 6 performs presetting on the molten material and tightly attaches the material to the roll surface of the cooling roll 3, and the material is cooled and set to form the solid film 22.

When different thicknesses of the film 22 are set, the first bolt positioning pin 43 and the second bolt positioning pin 94 are loosened and locked, the gap between the squeezing roller 5 and the cooling roller 3 is adjusted by moving the platform 8 and the outer spherical bearing with a seat 9, and then the first bolt positioning pin 43 and the second bolt positioning pin 94 are locked, so that the platform 8 and the outer spherical bearing with a seat 9 are respectively connected with the frame 4, and the normal operation of the device is ensured.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A film side edge shaping system for a casting machine comprises a frame (4), a discharging device (1) and an air knife (6) with the length of a nozzle (61) consistent with the width of a roll surface of a cooling roll (3), wherein the nozzle (61) of the air knife (6) blows airflow and uniformly blows towards molten materials, and the film side edge shaping system is characterized in that: the material extruding machine is characterized by further comprising a hollow discharging plate (2) detachably connected to a discharging port of the discharging device (1), wherein the hollow discharging plate (2) is perpendicular to the ground to extrude materials, the extruded materials are in contact with the cooling roller (3) at the tangent point of the extension line of the hollow discharging plate (2) and the cooling roller (3), and the distance between the end, close to the cooling roller (3), of the hollow discharging plate (2) and the roller surface of the cooling roller (3) is larger than the thickness of the extruded materials.

2. The film side sizing system for a casting machine of claim 1, wherein: two opposite surfaces of the inner surface of the upper part of the hollow discharging plate (2) are respectively provided with a female buckle (21), and two corresponding sides of the outer surface of the discharging opening of the discharging device (1) are respectively and fixedly connected with a male buckle (11).

3. The film side sizing system for a casting machine of claim 1, wherein: the film cooling device is characterized by further comprising an extrusion roller (5) used for controlling the thickness of the side edge of the film (22), the extrusion roller (5) is rotatably connected with the machine frames (4) on the two sides of the cooling roller (3), the central shaft of the extrusion roller (5) and the central shaft of the cooling roller (3) are on the same horizontal plane, the air knife (6) is located in front of the material advancing direction of the extrusion roller (5), air blows towards the gap between the extrusion roller (5) and the cooling roller (3), and the gap between the extrusion roller (5) and the cooling roller (3) is equal to the thickness of the film (22).

4. The film side sizing system for a casting machine of claim 3, wherein: horizontal holes (41) are formed in the machine frame (4) on the two sides of the cooling roller (3), two ends of a central shaft of the extrusion roller (5) extend out of the horizontal holes (41), one end of the central shaft of the extrusion roller (5) is fixedly connected with a coaxially driven motor (7), and the central shaft of the extrusion roller (5) is coaxially fixed with an output shaft (71) of the motor (7).

5. The film side sizing system for a casting machine of claim 4, wherein: the movable platform (8) is arranged on the outer side of the frame (4) on one side of the motor (7), the roller assemblies (83) are connected to the bottom of the platform (8) in a rolling mode, the platform (8) is connected with the frame (4) in an adjustable positioning mode, and the base (72) of the motor (7) is fixedly connected to the platform (8).

6. The film side sizing system for a casting machine of claim 5, wherein: the periphery of the upper part of the platform (8) is fixedly connected with a square baffle (82).

7. The film side sizing system for a casting machine of claim 6, wherein: one end of the central shaft of the squeeze roller (5) far away from the motor (7) is provided with a pedestal outer spherical bearing (9), a bearing seat (92) of the pedestal outer spherical bearing (9) is connected with the frame (4) in an adjustable positioning way, and an inner ring bearing part (91) is fixedly connected with the central shaft of the squeeze roller (5).

8. The film side sizing system for a casting machine of claim 7, wherein: frame (4) are equipped with motor (7) and have seted up first bolt adjustment tank (42) on one side, and first bolt adjustment tank (42) are located horizontal hole (41) lower part, and first screw hole (81) have been seted up to one side that movable platform (8) side is close to frame (4), and frame (4) and platform (8) are connected with first bolt locating pin (43).

9. The film side sizing system for a casting machine of claim 3, wherein: the cooling roller is characterized by further comprising annular side baffles (32) fixedly connected to two sides of the cooling roller (3), the inner edges of the annular side baffles (32) are smoothly and fixedly connected with the outer surface of the cooling roller (3), and the distance between the two annular side baffles (32) is equal to the width of the film (22) after being uniformly spread in equal thickness.

10. The film side sizing system for a casting machine of claim 9, wherein: the side edge of the extrusion roller (5) is mutually abutted with the annular side baffle (32), the contact surface of the annular side baffle (32) and the extrusion roller (5) is uniform and smooth, and the friction force generated by the contact of the annular side baffle and the extrusion roller (5) does not hinder the rotation of the extrusion roller (5) and the cooling roller (3) respectively.