A casting machine for manufacturing plastic film

Abstract

The utility model discloses a cast film machine for plastic film preparation, including bottom plate, discharge frame, raw material filtering mechanism and install on the discharge mechanism of bottom plate, fixed mounting has the feed pipe on the box, the inside fixed mounting of box has the filter box, fixed mounting has the transmission motor on the filter box, the output fixed mounting of transmission motor has the transmission shaft, this cast film machine for plastic film preparation realizes not to stop switching through multi -position filter disc design, and through the surface cleaning of cleaning plate to it when replacing filter disc, prevent filter disc and block up and cause unable to discharge, avoid the broken film problem of traditional stoppage of work and change net also can clear the impurity in raw material greatly, make production efficiency and product quality improve greatly, after raw material unloading is finished, through electric push rod and pushes second roller seat and second discharge roller, so that the user can adjust the thickness of the discharge film according to the demand, and the equipment flexibility is higher, and the daily use of the user is convenient.

Description

Technical Field

[0001] This utility model relates to the field of casting machine technology, specifically a casting machine for preparing plastic film. Background Technology

[0002] A casting machine is a high-efficiency and precise plastic film production equipment. It employs a melt casting process, heating and melting plastic raw materials, extruding them through a precision die, rapidly shaping them via cooling rollers, and finally winding them into a highly uniform film. The equipment integrates functions such as raw material filtration, casting, thickness adjustment, and automatic winding, and is suitable for the production of various plastic films such as PP, PE, PET, and PVC. It is widely used in packaging, electronics, medical, and optical films, among other fields. However, existing casting machines for plastic film preparation still have certain shortcomings. While traditional casting machines for plastic film preparation can be used effectively, the raw materials often contain impurities. Plastic films produced from these impurities are prone to breakage during stretching, leading to decreased product quality, significantly reduced production speed, and the inability to filter out impurities, which frequently troubles users. Summary of the Invention

[0003] The purpose of this invention is to provide a casting machine for preparing plastic film, in order to solve the problems mentioned in the background art, such as the presence of many impurities in the raw materials during feeding, which makes the plastic film produced from these materials prone to breakage during stretching, resulting in decreased product quality, significantly reduced production speed, and the inability to filter impurities from the raw materials, which often troubles users.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a casting machine for preparing plastic film, comprising a base plate, a discharge rack, a raw material filtering mechanism, and a discharge mechanism mounted on the base plate. The raw material filtering mechanism includes a housing, a feed pipe, a filter box, a drive motor, a drive shaft, a first intermittent wheel, a second intermittent wheel, a rotating rod, a filter disc, filter holes, a cleaning rack, a discharge hole, and a cleaning plate. The feed pipe is fixedly installed on the housing, and the filter box is fixedly installed inside the housing. The drive motor is fixedly installed on the filter box, and the drive shaft is fixedly installed at the output end of the drive motor. The first intermittent wheel is fixedly installed on the drive shaft, and the second intermittent wheel is used in conjunction with the first intermittent wheel. The first intermittent wheel is located inside the housing, and a rotating rod connected to the housing bearing is rotatably connected to the second intermittent wheel.

[0005] As a preferred embodiment of this utility model, a filter disc is fixedly installed on the rotating rod, and a filter hole is opened on the filter disc. A cleaning frame is fixedly installed on the rotating rod and is located below the filter disc. A discharge hole is opened on the bottom surface of the box. Two sets of cleaning plates are fixedly installed inside the filter box, and the bottom surface of the cleaning plate is in contact with the top surface of the filter disc.

[0006] As a preferred embodiment of the present invention, the discharge mechanism includes a support frame, a first roller seat, a first discharge roller, an electric push rod, a second roller seat, and a second discharge roller. The support frame is fixedly installed on the right side of the upper top surface of the base plate, and two sets of first roller seats are fixedly installed on the upper top surface of the support frame. The first discharge roller is connected to the first roller seat by a bearing.

[0007] As a preferred embodiment of this utility model, two sets of electric push rods are fixedly installed on the base plate, and the electric push rods are located at the bottom of the support frame. A second roller seat is fixedly installed on the top of the electric push rod, and a second discharge roller is connected to the bearing on the second roller seat.

[0008] As a preferred embodiment of this utility model, the first discharge roller and the second discharge roller have the same specifications, and the second roller seat and the support frame are slidably connected.

[0009] As a preferred embodiment of this utility model, a discharge rack is fixedly installed on the left side of the top surface of the base plate, and a box is fixedly installed on the left side of the top surface of the discharge rack.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This casting machine for preparing plastic film achieves non-stop switching through a multi-station filter disc design. While replacing the filter disc, the surface of the filter disc is cleaned by a cleaning plate to prevent the filter disc from clogging and causing material feeding failure. This avoids the film breakage problem caused by traditional screen replacement during shutdown and can also significantly remove impurities in the raw materials, thereby greatly improving production efficiency and product quality. After the raw materials are fed, the second roller seat and the second discharge roller are pushed by an electric push rod, allowing the user to adjust the thickness of the discharged film according to the needs. The equipment is highly flexible and convenient for daily use by the user. Attached Figure Description

[0011] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the main cross-sectional structure of this utility model; Figure 3 This is a schematic diagram of the main structure of the material discharge mechanism of this utility model; Figure 4 This is a schematic diagram of the meshing structure of the first intermittent wheel and the second intermittent wheel of this utility model.

[0012] In the diagram: 1. Base plate; 2. Discharge rack; 3. Raw material filtration mechanism; 301. Box body; 302. Feed pipe; 303. Filter box; 304. Drive motor; 305. Drive shaft; 306. First intermittent wheel; 307. Second intermittent wheel; 308. Rotating rod; 309. Filter disc; 310. Filter hole; 311. Cleaning frame; 312. Discharge hole; 313. Cleaning plate; 4. Discharge mechanism; 401. Support frame; 402. First roller seat; 403. First discharge roller; 404. Electric push rod; 405. Second roller seat; 406. Second discharge roller. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-4 This utility model provides a technical solution: a casting machine for preparing plastic film, including a base plate 1, a discharge rack 2, a raw material filtering mechanism 3, and a discharge mechanism 4 installed on the base plate 1. The raw material filtering mechanism 3 includes a housing 301, a feed pipe 302, a filter box 303, a drive motor 304, a drive shaft 305, a first intermittent wheel 306, a second intermittent wheel 307, a rotating rod 308, a filter disc 309, a filter hole 310, a cleaning rack 311, a discharge hole 312, and a cleaning plate 313. The housing 301... A feed pipe 302 is fixedly installed on the top. A filter box 303 is fixedly installed inside the housing 301. A drive motor 304 is fixedly installed on the filter box 303. A drive shaft 305 is fixedly installed at the output end of the drive motor 304. A first intermittent wheel 306 is fixedly installed on the drive shaft 305. A second intermittent wheel 307 is used in conjunction with the first intermittent wheel 306. The first intermittent wheel 306 is located inside the housing 301. A rotating rod 308 connected to the bearing of the housing 301 is rotatably connected to the second intermittent wheel 307.

[0015] A filter disc 309 is fixedly installed on the rotating rod 308. The filter disc 309 has filter holes 310. A cleaning frame 311 is fixedly installed on the rotating rod 308 and is located below the filter disc 309. A discharge hole 312 is opened on the bottom surface of the box 301. Two sets of cleaning plates 313 are fixedly installed inside the filter box 303, and the bottom surface of the cleaning plate 313 is in contact with the top surface of the filter disc 309.

[0016] The discharge mechanism 4 includes a support frame 401, a first roller seat 402, a first discharge roller 403, an electric push rod 404, a second roller seat 405, and a second discharge roller 406. The support frame 401 is fixedly installed on the right side of the upper top surface of the base plate 1. Two sets of first roller seats 402 are fixedly installed on the upper top surface of the support frame 401. The first discharge roller 403 is connected to the bearing on the first roller seat 402.

[0017] Two sets of electric push rods 404 are fixedly installed on the base plate 1, and the electric push rods 404 are located at the bottom of the support frame 401. A second roller seat 405 is fixedly installed on the top of the electric push rods 404, and a second discharge roller 406 is connected to the bearing on the second roller seat 405.

[0018] The first discharge roller 403 and the second discharge roller 406 have the same specifications, and the second roller seat 405 and the support frame 401 are slidably connected.

[0019] A discharge rack 2 is fixedly installed on the left side of the top surface of the base plate 1, and a box 301 is fixedly installed on the left side of the top surface of the discharge rack 2.

[0020] Working Principle: When using a casting machine for preparing plastic film, molten plastic first enters the filter box 303 through the feed pipe 302 during the raw material filtration stage. Impurities are removed by the filter holes 310 on the filter disc 309. The drive shaft 305 is driven by the drive motor 304, and the meshing of the first intermittent wheel 306 and the second intermittent wheel 307 drives the rotating rod 308 to rotate intermittently, causing the filter disc 309 to periodically switch positions. During equipment operation, the cleaning frame 311 rotates with the rotating rod 308, and the cleaning plate 313 scrapes off the impurities adhering to the filter disc 309. The impurities are discharged through the discharge hole 312. The filtered melt enters the discharge mechanism 4, forming a uniform film through the gap between the first discharge roller 403 and the second discharge roller 406. The first discharge roller 403 is driven by a motor, and the height of the second roller seat 405 is adjusted by an electric push rod 404 to dynamically control the distance between the two rollers to adapt to different thickness requirements. The intermittent movement of the raw material filtration mechanism 3 and the electric adjustment of the discharge mechanism 4 work together to ensure that the melt flow rate matches the film stretching speed, thereby completing a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A casting machine for preparing plastic film, comprising a base plate (1), a discharge rack (2), a raw material filtering mechanism (3), and a discharge mechanism (4) mounted on the base plate (1); characterized in that: The raw material filtration mechanism (3) includes a housing (301), a feed pipe (302), a filter box (303), a drive motor (304), a drive shaft (305), a first intermittent wheel (306), a second intermittent wheel (307), a rotating rod (308), a filter disc (309), a filter hole (310), a cleaning frame (311), a discharge hole (312), and a cleaning plate (313). The feed pipe (302) is fixedly installed on the housing (301), and the filter box (303) is fixedly installed inside the housing (301). 303), a drive motor (304) is fixedly installed on the filter box (303), a drive shaft (305) is fixedly installed on the output end of the drive motor (304), a first intermittent wheel (306) is fixedly installed on the drive shaft (305), a second intermittent wheel (307) is used in conjunction with the first intermittent wheel (306), and the first intermittent wheel (306) is located inside the box body (301), and a rotating rod (308) connected to the bearing of the box body (301) is rotatably connected to the second intermittent wheel (307).

2. The casting machine for preparing plastic film according to claim 1, characterized in that, A filter disc (309) is fixedly installed on the rotating rod (308), and a filter hole (310) is opened on the filter disc (309). A cleaning frame (311) is fixedly installed on the rotating rod (308), and the cleaning frame (311) is located below the filter disc (309). A discharge hole (312) is opened on the bottom surface of the box (301). Two sets of cleaning plates (313) are fixedly installed inside the filter box (303), and the bottom surface of the cleaning plate (313) is in contact with the top surface of the filter disc (309).

3. The casting machine for preparing plastic film according to claim 2, characterized in that, The discharge mechanism (4) includes a support frame (401), a first roller seat (402), a first discharge roller (403), an electric push rod (404), a second roller seat (405), and a second discharge roller (406). The support frame (401) is fixedly installed on the right side of the upper top surface of the base plate (1). Two sets of first roller seats (402) are fixedly installed on the upper top surface of the support frame (401). The first discharge roller (403) is connected to the bearing on the first roller seat (402).

4. The casting machine for preparing plastic film according to claim 3, characterized in that, Two sets of electric push rods (404) are fixedly installed on the base plate (1), and the electric push rods (404) are located at the bottom of the support frame (401). A second roller seat (405) is fixedly installed on the top of the electric push rods (404), and a second discharge roller (406) is connected to the bearing on the second roller seat (405).

5. A casting machine for preparing plastic film according to claim 4, characterized in that, The first discharge roller (403) and the second discharge roller (406) have the same specifications, and the second roller seat (405) and the support frame (401) are slidably connected.

6. A casting machine for preparing plastic film according to claim 5, characterized in that, A discharge rack (2) is fixedly installed on the left side of the top surface of the base plate (1), and a box (301) is fixedly installed on the left side of the top surface of the discharge rack (2).

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