High-precision PVDF cast film production equipment

Abstract

The utility model discloses high-precision PVDF (polyvinylidene fluoride) cast film production equipment which comprises an extruder, two groups of guide frames are arranged on the rear side of the extruder, casting rollers are rotatably mounted in the guide frames, a circulating component is arranged on one sides of the two casting rollers, a supporting seat is arranged on one sides of the casting rollers, an adjusting component is arranged at the upper end of the supporting seat, and the adjusting component is arranged on the lower end of the supporting seat. The adjusting assembly comprises a positioning frame, the positioning frame is fixedly installed on the supporting seat, a threaded rod is in threaded connection with the middle of the inner side of the positioning frame, a limiting frame is arranged at one end of the threaded rod, scale marks are fixedly arranged on the outer wall of the front side of the positioning frame, and a winding frame is fixedly arranged at the position, located on the rear side of the positioning frame, of the upper end of the supporting seat. One end of the threaded rod is fixedly connected with a rotating hand wheel, the other end of the threaded rod is rotatably provided with a sleeve, and the sleeve is fixedly connected to the limiting frame, so that the casting film can be uniformly and fully cooled, and the tension of the treated casting film can be adjusted to prevent rolling wrinkles.

Description

TECHNICAL FIELD

[0001] The utility model relates to the cast film production equipment technical field especially relates to a kind of high-precision PVDF cast film production equipment. BACKGROUND

[0002] Polyvinylidene fluoride (PVDF) cast film has excellent performance, such as chemical corrosion resistance, weather resistance, wear resistance, electrical insulation, etc., in solar backsheet, chemical corrosion prevention, electronic and electrical, building waterproof and many other fields, with the development of related industries, higher requirements are put forward for the precision, quality and other aspects of PVDF cast film.

[0003] The existing PVDF cast film production has some deficiencies, the traditional PVDF cast film production equipment causes the precision of produced cast film to be difficult to meet the market demand, in the winding process of cast film processing, due to unstable tension control, it is easy to cause cast film to wrinkle, deformation and other problems when winding, further reduces product precision and quality, affects the processing efficiency of cast film, is easy to cause damage, in view of the above problems, a high-precision PVDF cast film production equipment is improved and upgraded. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of high-precision PVDF cast film production equipment to solve the problems in the above background.

[0005] To solve the above problems, the following technical scheme is provided: a kind of high-precision PVDF cast film production equipment, including extruder, the extruder rear side is provided with two groups of guide frame and guide frame inside is rotatably installed with cast roll, one side of two cast roll is provided with circulation assembly, the cast roll one side is provided with support seat, the support seat upper end is provided with adjusting assembly, the adjusting assembly includes positioning frame, the positioning frame is fixedly installed on support seat, the positioning frame inner side middle part is connected with threaded rod and threaded rod one end is provided with limit frame, the positioning frame front side outer wall is fixedly provided with scale line, the support seat upper end is fixedly provided with winding frame in the rear side of positioning frame.

[0006] As the preferred technical solution of the above, the threaded rod one end is fixedly connected with rotating hand wheel, the threaded rod other end is rotatably installed with sleeve and sleeve is fixedly connected on limit frame, the limit frame is connected with cast film.

[0007] As the preferred technical solution of the above, the positioning frame inside is symmetrically slidably connected with two guide sliding rods in threaded rod and one end of guide sliding rod is fixedly connected on limit frame.

[0008] As the preferred technical scheme, the circulating assembly comprises a liquid storage tank, the liquid storage tank is arranged on one side of the two casting rollers, two water inlet pipes are arranged on the outer wall of the liquid storage tank, and a circulating pump is arranged on the outer wall of each water inlet pipe.

[0009] As the preferred technical scheme, one end of each of the two water inlet pipes penetrates into the limiting disc and is connected with a spiral pipe at the extending end, the spiral pipe is connected on the inner wall of the casting roller, the other end of the spiral pipe is fixedly connected with a water outlet pipe, and an electromagnetic valve is arranged on the outer wall of the water outlet pipe.

[0010] As the preferred technical scheme, one end of each of the two water inlet pipes penetrates into the limiting disc and is connected with a spiral pipe at the extending end, the spiral pipe is connected on the inner wall of the casting roller, the other end of the spiral pipe is fixedly connected with a water outlet pipe, and an electromagnetic valve is arranged on the outer wall of the water outlet pipe.

[0011] Compared with the prior art, the device has the advantages that:

[0012] 1. The device is provided with a positioning frame, a rotating hand wheel, a threaded rod, a limiting frame, a guide sliding rod and other components, the rotating hand wheel drives the limiting frame on the threaded rod to move downward, the tension of the casting film is pre-tightened, the defects, wrinkles and deformation of the casting film during winding are avoided, the overall quality and performance stability of the product are improved, and the casting film can be stably wound and packaged.

[0013] 2. The device is provided with a liquid storage tank, a circulating pump, a water inlet pipe, a spiral pipe and a water outlet pipe, the casting film on the casting roller can be cooled and shaped, the uniform circulation of the cooling medium in the casting roller ensures the thickness accuracy and surface flatness of the casting film during the cooling process, and the processing stability of the casting film is improved.

[0014] The specific embodiments of the device are disclosed in detail in the following description and drawings, and the principles of the device can be adopted in the manner. It should be understood that the embodiments of the device are not limited in scope. The embodiments of the device include many changes, modifications and equivalents within the spirit and scope of the appended claims. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the device, and constitute a part of the specification, which is used to explain the device together with the embodiments of the device, and does not constitute a limitation on the device. In the drawings:

[0016] Figure 1 It is a high-precision PVDF casting film production equipment overall structure schematic view of the device.

[0017] Figure 2 It is a high-precision PVDF flow casting film production equipment side structure schematic view of the utility model;

[0018] Figure 3 It is a high-precision PVDF flow casting film production equipment local structure schematic view of the utility model;

[0019] Figure 4 It is Figure 3 Partial enlarged split structure schematic view is shown in the figure;

[0020] Figure 5 It is Figure 3 Partial enlarged split structure schematic view is shown in the figure.

[0021] In the figure: 1, extruder;2, circulating assembly;21, liquid storage tank;22, circulating pump;23, water inlet pipe;24, spiral pipe;25, water outlet pipe;26, limit disc;3, flow casting roller;4, winding frame;5, adjusting assembly;51, positioning frame;52, rotating hand wheel;53, threaded rod;54, limit frame;55, guide slide rod;56, scale line. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0023] As Figures 1 to 5 Indicated, the utility model provides a design a kind of high-precision PVDF flow casting film production equipment, including extruder 1, two groups of guide frame are provided with in the rear side of extruder 1 and flow casting roller 3 are rotatably installed in guide frame, and one side of two flow casting rollers 3 is provided with circulating assembly 2, and one side of flow casting roller 3 is provided with support seat, and adjusting assembly 5 is provided on the upper end of support seat, and adjusting assembly 5 includes positioning frame 51, and positioning frame 51 is fixedly installed on support seat, and screw rod 53 is screw-connected in the middle part of inner side of positioning frame 51, and one end of screw rod 53 is provided with limit frame 54, and scale line 56 is fixedly provided on the outer wall of front side of positioning frame 51, and winding frame 4 is fixedly provided on the upper end of support seat and located at the rear side of positioning frame 51.

[0024] As Figures 3 to 4 Indicated, one end of screw rod 53 is fixedly connected with rotating hand wheel 52, and sleeve is rotatably installed on the other end of screw rod 53, and sleeve is fixedly connected on limit frame 54, and limit frame 54 is connected with flow casting film, and two guide slide rods 55 are symmetrically slidably connected in the inside of positioning frame 51, and one end of guide slide rod 55 is fixedly connected on limit frame 54.

[0025] By rotating the hand wheel 52 to drive the threaded rod 53 to rotate on the positioning frame 51, the limiting frame 54 is driven to move downward, and at the same time, the worker observes the scale line 56 outside the positioning frame 51, so that the movement of the limiting frame 54 is relatively accurate. The limiting frame 54 slides in the positioning frame 51 by using the guide slide rod 55, so that the movement of the limiting frame 54 is relatively stable, which is convenient for pre-tightening the casting film tension, avoiding the sagging phenomenon of the casting film during conveying and winding, and setting the scale line 56 to facilitate the worker to accurately control the distance when the limiting frame 54 moves. The corona part is arranged between the positioning frame 51 and the casting roller 3, which improves the surface performance of the casting film and enhances the subsequent printing, compounding and other processing adaptability.

[0026] As shown in Figure 5 The circulating assembly 2 comprises a liquid storage tank 21, which is arranged on one side of the two casting rollers 3. The outer wall of the liquid storage tank 21 is provided with two water inlet pipes 23, and the outer wall of each water inlet pipe 23 is provided with a circulating pump 22. The circulating pump 22 is arranged on the liquid storage tank 21. One end of each water inlet pipe 23 penetrates into the limiting disc 26 and is connected with a spiral pipe 24. The spiral pipe 24 is connected to the inner wall of the casting roller 3. The other end of the spiral pipe 24 is fixedly connected with a water outlet pipe 25. The outer wall of the water outlet pipe 25 is provided with an electromagnetic valve. One end of the water outlet pipe 25 is arranged in the liquid storage tank 21. The outer wall of the casting roller 3 is provided with a driving motor, and the other end is rotatably arranged on the limiting disc 26. The outer wall of the limiting disc 26 is fixedly connected to the guide frame. The water outlet pipe 25 and the guide frame are mutually penetrated.

[0027] Through the work of the two circulating pumps 22 on the liquid storage tank 21, the cooling liquid is conveyed into the spiral pipe 24 in the casting roller 3 through the water inlet pipe 23, so that the surface of the casting roller 3 is fully and uniformly cooled. The used cooling liquid flows back to the liquid storage tank 21 through the water outlet pipe 25 for reprocessing, so that the casting film is cooled and shaped on the casting roller 3. The spiral pipe 24 is arranged to facilitate the uniform distribution of the cooling liquid around the surface of the casting roller 3, improve the cooling fullness of the casting film, and facilitate the recycling of the cooling liquid. One end of the casting roller 3 is connected with a motor, and the motor is fixedly arranged on the guide frame. The other end of the casting roller 3 is rotatably arranged on the limiting disc 26.

[0028] The use principle and use process of the utility model: when using the high-precision PVDF flow casting film production equipment, first, the PVDF raw material is put into the extruder 1, the screw is used in the extruder 1 to convey, compress, shear and mix the raw material, cooperate the temperature environment of accurate control, make the PVDF plastic melt fully and uniformly, the material after melting is extruded through the full-automatic mould, the melt of extrusion falls on the surface of flow casting roller 3, at this time, the external power supply is connected, two circulating pumps 22 on the liquid storage tank 21 work, the cooling liquid is conveyed into the spiral pipe 24 in the flow casting roller 3 along the water inlet pipe 23, the surface of flow casting roller 3 is cooled fully and uniformly, the cooling liquid after use flows back to the liquid storage tank 21 inside to be treated again, so that the flow casting film is cooled and shaped on the flow casting roller 3, the cooling medium that circulates uniformly in the flow casting roller 3 ensures the thickness precision and surface flatness of the flow casting film in the cooling process, the flow casting film after flow casting cooling enters the corona part, carries out corona treatment, to improve the surface performance of the film, enhances its subsequent printing, compound and other processing adaptability, finally, the flow casting film after corona treatment enters the winding part, the flow casting film is wound at the same time due to the problem of flow casting film tension, the staff drives the threaded rod 53 to rotate on the positioning frame 51 by rotating the hand wheel 52, drives the limiting frame 54 to move downward, at the same time, the staff observes the scale line 56 outside the positioning frame 51, makes it relatively accurate to the movement of the limiting frame 54, the limiting frame 54 slides in the positioning frame 51 by the guide slide 55 when moving, is convenient for the relatively stable movement of the limiting frame 54, is convenient for the pretightening of the flow casting film tension, ensures that the winding is tight and neat, avoids the problems such as wrinkle, deformation of the flow casting film and the influence of precision, finally, the flow casting film is stably wound and packed by using the electric winding frame 4.

[0029] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "installation", "is provided with", "connection" and the like should be broad understanding, for example "connection", can be fixed connection, also can be detachable connection, or integral connection, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be the intercommunication of two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to specific situation.

[0030] In the description of the embodiment, the orientation or position relationship of the terms "upper", "lower", "right", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

Claims

1. A high precision PVDF cast film production apparatus, characterized by, The utility model provides an extruder (1) is provided with two groups of guide frames in the rear side, and the inside of guide frame is rotatably installed with casting roller (3), one side of two casting rollers (3) is provided with circulating assembly (2), one side of casting roller (3) is provided with support seat, the upper end of support seat is provided with adjusting assembly (5), adjusting assembly (5) contains positioning frame (51), positioning frame (51) is fixedly installed on support seat, the inside middle part of positioning frame (51) is screw connected with threaded rod (53) and one end of threaded rod (53) is provided with limiting frame (54), the front side outer wall of positioning frame (51) is fixedly provided with scale line (56), the upper end of support seat is fixedly provided with winding frame (4) at the rear side of positioning frame (51).

2. The high-precision PVDF casting film production equipment according to claim 1, characterized in that, One end of threaded rod (53) is fixedly connected with rotating hand wheel (52), the other end of threaded rod (53) is rotatably installed with sleeve and is fixedly connected on limiting frame (54), limiting frame (54) is connected with casting film.

3. The high-precision PVDF cast film production equipment according to claim 2, characterized in that, The inside of positioning frame (51) is symmetrically slidably connected with two guide sliding rods (55) at threaded rod (53) and one end of guide sliding rod (55) is fixedly connected on limiting frame (54).

4. The high-precision PVDF casting film production equipment according to claim 1, characterized in that, Circulating assembly (2) contains liquid storage tank (21), liquid storage tank (21) is provided at one side of two casting rollers (3), two water inlet pipes (23) are provided on the outer wall of liquid storage tank (21) and circulating pump (22) is installed on the outer wall of water inlet pipe (23), and circulating pump (22) is provided on liquid storage tank (21).

5. The high precision PVDF cast film production apparatus according to claim 4, wherein, One end of two water inlet pipes (23) penetrates into the inside of limiting disc (26) and is connected with spiral pipe (24) at the extension end, spiral pipe (24) is connected with casting roller (3) inner wall, the other end of spiral pipe (24) is fixedly connected with water outlet pipe (25), and the outer wall of water outlet pipe (25) is provided with electromagnetic valve.

6. The high precision PVDF cast film production apparatus according to claim 5, wherein, One end of water outlet pipe (25) is installed in the inside of liquid storage tank (21), the outer wall of casting roller (3) is provided with driving motor, the other end is rotatably installed on limiting disc (26), the outer wall of limiting disc (26) is fixedly connected on guide frame, and water outlet pipe (25) and guide frame are mutually penetrated.

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