Cast film machine for thin film production
The innovative design of the smoothing and cutting/winding components of the casting film machine has solved the problem of wrinkles during film transport, achieving efficient film flattening and automatic cutting, thus improving film quality and production efficiency.
Patent Information
- Application Number
- CN202520339821.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing casting film machines cannot effectively smooth out wrinkles or edge wrinkles during film transport, resulting in uneven film quality and affecting the printing and lamination effects of subsequent processes.
The design employs a flattening assembly and a cutting and winding assembly. The meshing of large and small gears drives the scraper on the transmission belt to move and flatten the film, and the screw drives the cutter to rise and fall to achieve automatic cutting. The design of the push rod and top plate ensures tight film transport.
It improves the flatness and cutting accuracy of the film, enhances film quality and production efficiency, reduces downtime and failure rate, and ensures the consistency and stability of film products.
Smart Images

Figure CN223792629U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of film production, specifically to a cast film machine for film production. BACKGROUND
[0002] Film is a kind of thin and soft transparent sheet, which is made of plastic, adhesive, rubber or other materials. During film production, a casting machine is used. Since the production is carried out by using the casting process, it is called cast film. Cast film is a kind of plastic film. During cast film production, the molten plastic raw material is discharged through a special die and rapidly cooled on a cooling roller to form a film. Cast film is widely used in the packaging of food, medical supplies and daily necessities. It also has the characteristics of uniform thickness, good transparency and good heat sealing, which is beneficial to subsequent printing, compounding and other processes.
[0003] For example, the patent publication No. CN217867272U discloses a cast film flattening device. Although the device can press the side edges of the film tightly through pulleys and rollers, so that the film is not easy to deviate, thereby achieving the flattening effect during the film traction process.
[0004] However, if the film has wrinkles during the transmission process or the edges of the film have wrinkles, the pulleys and rollers cannot flatten the wrinkles that have already occurred or the wrinkles at the edges because the range of traction and compression is limited. Therefore, a cast film machine for film production is proposed. UTILITY MODEL CONTENT
[0005] The utility model aims to provide a cast film machine for film production to solve the problems raised in the background art.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a cast film machine for film production, comprising: a base,
[0007] A flattening assembly is arranged at the top end of the base for adjusting the flatness of the film.
[0008] A cutting and winding assembly is arranged on one side of the U-shaped frame for winding and cutting the film.
[0009] The cutting and winding assembly comprises a second motor, which is arranged on one side of the side plate on both sides of the top end of the base. The second motor is connected with a winding roller at the output end. A cross plate is arranged on the outer wall of the other end of the winding roller. The cross plate is located inside the side plate.
[0010] As a specific solution in the technical scheme of the present application, a strip plate is arranged at the top end inside the side plate. A third motor is arranged at the top end of the strip plate. The third motor is connected with a screw rod at the output end. A fixing seat is arranged on the outer wall of the other end of the screw rod.
[0011] As a specific scheme of the technical scheme in the application, the outer wall of the screw is threadedly connected with fixing blocks, the fixing blocks are connected through a strip-shaped plate, the bottom end of the strip-shaped plate is provided with a cutter, the fixing blocks are provided with a pressing plate therebetween, and the inner side of the fixing blocks is provided with a sliding rod.
[0012] As a specific scheme of the technical scheme in the application, the flattening assembly comprises a U-shaped frame, the U-shaped frame is located at the top end of the side plate, the top end of the base is provided with a supporting block, the top end of the supporting block is provided with a push rod, and the top end of the push rod is provided with a top plate.
[0013] As a specific scheme of the technical scheme in the application, the side plates are connected through a fixing plate, the fixing plates are connected through rotating rollers, the rotating rollers are connected through a transmission belt, and the outer wall of the transmission belt is provided with a plurality of scrapers.
[0014] As a specific scheme of the technical scheme in the application, one side of the fixing plate is provided with a fixing seat, one side of the fixing seat is provided with a first motor, the output end of the first motor is connected with a pinion through a fixing shaft, the pinion is engaged with a gear wheel, and the gear wheel is located at one end of the outer wall of the rotating roller.
[0015] As a specific scheme of the technical scheme in the application, the top end of the base is provided with a fixing box, the top end of the fixing box is provided with an extruder, one end of the extruder is connected with a filler box in the outer wall, the other end of the extruder is connected with a mold box, and the bottom end of the mold box is provided with a cooling plate.
[0016] Compared with the prior art, the application has the beneficial effects that:
[0017] The casting film machine for film production can drive the gear wheel to rotate synchronously under the action of the pinion, the gear wheel can move to two sides under the action of the transmission belt, the film can be flattened, the flatness of the produced film is ensured, the quality of the film is improved, the film roll on the winding roller can be taken down under the action of the cross plate, the strip-shaped plate between the fixing blocks is driven to ascend and descend by the screw, the cutter can descend synchronously in the descending process of the strip-shaped plate, the film can be cut when the cutter enters the cutter groove in the pressing plate, the cumbersome steps of traditional manual cutting are simplified, the accuracy and efficiency of cutting are improved, the quality and consistency of the film product are improved, the film can be in a compact state without being in a slack state in the ascending process of the top plate driven by the push rod, the stability of film production is ensured, the downtime adjustment time and failure rate are reduced, and the overall production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is an isometric view of the application.
[0019] Figure 2 It is the isometric side sectional view of the utility model;
[0020] Figure 3 It is the isometric side local view of the utility model;
[0021] Figure 4 It is the flattening assembly sectional view of the utility model;
[0022] Figure 5 It is the cutting and winding assembly sectional view of the utility model.
[0023] In the figure: 1, base; 101, fixed box; 102, mould box; 103, extruder; 104, filler box; 105, cooling plate; 106, side plate; 2, flattening assembly; 201, U-shaped frame; 202, transmission belt; 203, fixed plate; 204, scraper; 205, rotating roller; 206, large gear; 207, small gear; 208, fixed seat; 209, fixed block; 210, push rod; 211, top plate; 212, supporting block; 213, first motor; 3, cutting and winding assembly; 301, second motor; 302, strip plate; 303, winding roller; 304, cross plate; 305, pressing plate; 306, sliding rod; 307, cutter; 308, screw rod; 309, third motor. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the utility model.
[0025] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second" and the like are only used for distinguishing description, and cannot be understood as indicating or implying relative importance. The electrical components appearing in the text are all electrically connected with the master controller and 220V mains, and the master controller can be a conventional known device such as computer for control.
[0026] In the description of the embodiments of the utility model, it needs to be explained that the directions or position relations indicated by the terms "inner", "outer", "upper" and the like are based on the directions or position relations shown in the drawings, or are the directions or position relations in which the utility model product is usually placed during use, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0027] As Figures 1-5 Indicated, the utility model provides a technical scheme: a kind of cast film machine for film production, it include: pedestal 1, pedestal 1 is used to provide containing environment to device whole, pedestal 1 bottom end is provided with multiple support columns, support column is used to support pedestal 1, straightening component 2, it is set in pedestal 1 top end, for adjusting the flatness of film, cutting and winding component 3, it is set in U-shaped frame 201 one side, for winding cutting to film.
[0028] As Figures 1-5 Indicated, in the embodiment of the present application, cutting and winding component 3 includes second motor 301, second motor 301 is located in the side plate 106 one side of pedestal 1 top end two sides, second motor 301 output end is connected with winding roller 303, winding roller 303 other end outer wall is provided with cross plate 304, cross plate 304 is located in the inner side of side plate 106, specifically, under the action of cross plate 304, the film roll on winding roller 303 can be taken down, cross plate 304 is movably embedded in the inner side of side plate 106, and cross plate 304 outer side is provided with hanging ring, and the hanging ring is fixedly connected with cross plate 304, since the hanging ring is prior art, therefore, it will not be described in more detail here, the motor of the present application is connected with external power supply, and is controlled by control system, second motor 301 drives winding roller 303 to rotate, winding roller 303 can wind film during rotation, winding roller 303 is rotatably connected with cross plate 304, since the cross plate 304 is provided with the shape itself, so as to ensure that cross plate 304 is fixed relative to side plate 106 during the rotation of winding roller 303, therefore, during the rotation of winding roller 303 in the inner side of cross plate 304, cross plate 304 will not rotate synchronously with winding roller 303, the size of cross plate 304 is adjusted according to actual conditions, but the space formed by cross plate 304 can meet that film can be taken out from it.
[0029] As Figures 1-5As shown in the embodiment of this application, a strip plate 302 is provided on the inner side of the top of the side plate 106. A third motor 309 is provided on the top of the strip plate 302. A screw 308 is connected to the output end of the third motor 309. A fixing seat 208 is provided on the outer wall of the other end of the screw 308. A fixing block 209 is threadedly connected to the outer wall of the screw 308. The fixing blocks 209 are connected to each other through the strip plate 302. A cutter 307 is provided at the bottom of the strip plate 302. A pressure plate 305 is provided between the fixing seats 208. A slide rod 306 is provided on the inner side of the fixing block 209. Specifically, under the action of the cutter 307, the film can be cut. The cutter 307 is fixedly provided at the bottom of the strip plate 302. When the third motor 309 is started, the third motor 309 drives the screw 308 to rotate. The screw 308 is threadedly connected to the fixing block 209. Therefore... During the rotation of the screw 308, the fixed block 209 can be driven to rise and fall. The fixed block 209 is fixedly connected to the strip plate 302. The inner wall of the fixed block 209 at the other end of the strip plate 302 is provided with a sliding rod 306. The fixed block 209 and the sliding rod 306 are slidably connected. When the fixed block 209 rises and falls, the cutter 307 at the bottom of the strip plate 302 is driven to rise and fall synchronously. During the rise and fall of the cutter 307, the fixed block 209 rises and falls synchronously along the sliding rod 306. The pressure plate 305 is provided with a groove that matches the cutter 307. After the cutter 307 falls into the groove on the pressure plate 305, it can cut the film. Thus, after the winding roller 303 has wound the film to a certain thickness, the film can be cut, and the wound film can be removed for another roll of film winding operation.
[0030] like Figures 1-5 As shown in the embodiments of this application, the smoothing component 2 includes a U-shaped frame 201, which is located at the top of the side plate 106. A support block 212 is provided at the top of the base 1, and a push rod 210 is provided at the top of the support block 212. A top plate 211 is provided at the top of the push rod 210. Specifically, under the action of the top plate 211, the film can be flattened and made into a tight state. The film will pass through the gap between the top plate 211 and the U-shaped frame 201. The support block 212 is used to provide a accommodating environment for the push rod 210. The push rods 210 in this application are all connected to an external power supply and controlled by a control system. The push rods 210 drive the top plate 211 to rise and fall, thereby adjusting the tightness of the film during the movement process without causing looseness.
[0031] like Figures 1-5As shown, in the embodiment of the present application, the side plates 106 are connected through the fixed plates 203, the fixed plates 203 are connected through the rotating rollers 205, the rotating rollers 205 are connected through the transmission belts 202, the outer wall of the transmission belts 202 is provided with a plurality of scrapers 204, specifically, the fixed plates 203 are fixedly connected with the side plates 106, and the fixed plates 203 are symmetrically arranged relative to the rotating rollers 205, the rotating rollers 205 can drive the transmission belts 202 to rotate in the rotating process, the transmission belts 202 synchronously drive the scrapers 204 to rotate in the rotating process, the top end of the scraper 204 is provided with a round corner, which can protect the film when scraping the film.
[0032] As shown, Figures 1-5 As shown, in the embodiment of the present application, one side of the fixed plate 203 is provided with a fixed seat 208, one side of the fixed seat 208 is provided with a first motor 213, the output end of the first motor 213 is connected with a pinion 207 through a fixed shaft, the pinion 207 is engaged with a gear wheel 206, and the gear wheel 206 is located at one end of the outer wall of the rotating roller 205, specifically, one end of the rotating roller 205 on which the gear wheel 206 relies penetrates to the outside of the fixed plate 203, so as to ensure that the gear wheel 206 located on the outer wall of the rotating roller 205 and the pinion 207 are in the same plane, under the action of the pinion 207, the gear wheel 206 can be driven to rotate, the fixed seat 208 provided on one side of the fixed plate 203 is used for mounting the first motor 213, starting the first motor 213, the first motor 213 drives the fixed shaft to rotate, the outer wall of the fixed shaft is fixedly provided with the pinion 207, the fixed shaft drives the pinion 207 to rotate at the same time, the pinion 207 drives the gear wheel 206 to rotate in the rotating process, the gear wheel 206 drives the rotating roller 205 to rotate synchronously at the same time, since the gear wheel 206 is arranged on both sides of the pinion 207, the directions of rotation of the gear wheels 206 on both sides are different, the gear wheel 206 on the left rotates counterclockwise, and the gear wheel 206 on the right rotates clockwise, so as to drive the scraper 204 to move to both sides, thereby being capable of flattening the film.
[0033] As shown, Figures 1-5As shown, in the embodiment of the present application, the top end of the base 1 is provided with a fixed box 101, the top end of the fixed box 101 is provided with an extruder 103, one end of the extruder 103 is connected with a filler box 104, the other end of the extruder 103 is connected with a mold box 102, the bottom end of the mold box 102 is provided with a cooling plate 105, specifically, under the cooperation of the filler box 104, the mold box 102, the cooling plate 105 and the control panel, the filler box 104 can more conveniently add materials to the inside of the extruder 103, which can be more convenient to use, the cooling plate 105 can cool the mold box 102, reduce the temperature inside the mold box 102, the control panel can conveniently control the device, so that the device better performs human-computer interaction in the process of use, is convenient to control, when opening processing, the film flowing out of the mold box 102 is adhered to the winding roller 303 by the staff, under the winding action of the winding roller 303, the film will enter the scraper 204 at the top end of the transmission belt 202.
[0034] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended embodiments and their equivalents.
Claims
1. A cast film machine for film production, comprising: Base (1), characterized in that: The flattening assembly (2) is arranged at the top end of the base (1) and is used to adjust the flatness of the film. The cutting and winding assembly (3) is arranged on one side of the U-shaped frame (201) and is used to wind and cut the film. The cutting and winding assembly (3) includes a second motor (301), which is located on one side of the side plate (106) at the top end of the base (1), and a winding roller (303) connected to the output end of the second motor (301), and a cross plate (304) arranged on the other end of the winding roller (303), and the cross plate (304) is located inside the side plate (106).
2. A cast film machine for film production according to claim 1, characterized in that: The top end of the side plate (106) is provided with a strip plate (302), and the top end of the strip plate (302) is provided with a third motor (309), and the output end of the third motor (309) is connected with a screw rod (308), and the other end of the screw rod (308) is provided with a fixed seat (208).
3. A cast film machine for the production of thin films according to claim 2, characterized in that: The outer wall of the screw rod (308) is threadedly connected with a fixed block (209), the fixed blocks (209) are connected by the strip plate (302), the bottom end of the strip plate (302) is provided with a cutter (307), the fixed seat (208) is provided with a pressing plate (305), and the inner side of the fixed block (209) is provided with a sliding rod (306).
4. The cast film machine for film production according to claim 1, characterized in that: The flattening assembly (2) includes a U-shaped frame (201), which is located at the top end of the side plate (106), and a support block (212) is arranged at the top end of the base (1), and a push rod (210) is arranged at the top end of the support block (212), and a top plate (211) is arranged at the top end of the push rod (210).
5. The cast film machine for film production according to claim 2, characterized in that: The side plates (106) are connected by a fixed plate (203), the fixed plates (203) are connected by rotating rollers (205), the rotating rollers (205) are connected by a transmission belt (202), and the outer wall of the transmission belt (202) is provided with a plurality of scrapers (204).
6. A cast film machine for the production of thin films according to claim 5, characterized in that: The fixed plate (203) is provided with a fixed seat (208) on one side, the fixed seat (208) is provided with a first motor (213) on one side, the output end of the first motor (213) is connected with a pinion (207) through a fixed shaft, the pinion (207) is engaged with a gear (206), and the gear (206) is located on the outer wall of one end of the rotating roller (205).
7. The cast film machine for film production according to claim 4, characterized in that: The top end of the base (1) is provided with a fixed box (101), the top end of the fixed box (101) is provided with an extruder (103), one end of the extruder (103) is connected with a filler box (104), the other end of the extruder (103) is connected with a mold box (102), and the bottom end of the mold box (102) is provided with a cooling plate (105).
Citation Information
Patent Citations
Tension-controlled flattening device of casting equipment
CN217867272U