Strong wear-resistant polyolefin film forming device

Abstract

The utility model discloses a strong wear-resistant polyolefin film forming device, which relates to the technical field of polyolefin film production, and comprises an extrusion forming machine, a feed port is arranged above the extrusion forming machine, a feeding tank is arranged above the feed port, one side of the feeding tank is connected with an exhaust tank through a pipeline, and the exhaust tank is connected with an exhaust pipe through a pipeline. One side of the exhaust tank is connected with an exhaust pump through a pipeline, a material conveying pipe is installed at the front end of the exhaust tank, the exhaust tank comprises a tank body, the tank body is connected with the exhaust pump through an exhaust pipe, a sealing cover is installed above the tank body, a pressure sensor is installed on the outer wall of the sealing cover, and the pressure sensor is connected with the exhaust pump through an exhaust pipe. And the detection end of the pressure sensor extends into the tank body. The problems that when an existing film forming device is used, a feeding port of the existing film forming device is in an open state, dust and impurities are prone to entering during feeding, a certain proportion of air is prone to being mixed among raw materials, subsequent films are prone to being broken, and the quality of subsequent film finished products is affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of polyolefin film production technology, specifically to a high-wear-resistant polyolefin film forming device. Background Technology

[0002] Polyolefin films are thin film materials made of polyolefin resins. Polyolefins are a class of polymer compounds formed by the polymerization of olefin monomers, mainly including polyethylene (PE) and polypropylene (PP). There are two main molding methods: one is extrusion molding by an extruder, and the other is blown film molding by a blown film machine.

[0003] Announcement No.: CN218875806U, entitled "A Ceramic Film Forming Extrusion Device," includes a base, a ceramic film extruder body, an extrusion mechanism, a forming mechanism, and a discharge cutting mechanism. The ceramic film extruder body is fixedly installed on the upper end of the base. The extrusion mechanism is located inside the ceramic film extruder body, the forming mechanism is located at the left end of the ceramic film extruder body, and the discharge cutting mechanism is located at the left end of the forming mechanism. This ceramic film forming extrusion device, through the discharge cutting structure, extrudes soft ceramic film into the discharge trough. Then, the producer slides a slide bar left and right along the trough according to different needs, adjusting the slide bar to the required position according to the scale. Then, a hydraulic cylinder drives the output rod and the cutting blade downwards, cutting the soft ceramic film to the required length. Cutting is simpler and more precise, eliminating the need for hand-held cutting tools and making it safer.

[0004] The existing membrane forming device described above has its feeding port always open during use. This makes it easy for dust and impurities to enter, and also for a certain proportion of air to mix into the raw materials, which can easily cause subsequent membrane breakage and affect the quality of the finished membrane product. Therefore, it does not meet the current requirements, and a high wear-resistant polyolefin membrane forming device has been proposed. Utility Model Content

[0005] The purpose of this invention is to provide a high-wear-resistant polyolefin film forming device to solve the problem mentioned in the background art that the feeding port of the existing film forming device is always open during use. During feeding, not only is it easy for dust and impurities to enter, but also a certain proportion of air can be mixed between the raw materials, which can easily cause subsequent film breakage and affect the quality of the finished film.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high wear-resistant polyolefin film forming device, comprising: an extrusion molding machine, an inlet provided above the extrusion molding machine, a feeding tank installed above the inlet, an exhaust tank connected to one side of the feeding tank via a pipeline, an exhaust pump connected to one side of the exhaust tank via a pipeline, and a conveying pipe installed at the front end of the exhaust tank.

[0007] Preferably, the exhaust tank includes a tank body, and the tank body is connected to the exhaust pump via an exhaust pipe.

[0008] Preferably, a cover is installed on the top of the tank, and a pressure sensor is installed on the outer wall of the cover, with the detection end of the pressure sensor extending into the tank.

[0009] Preferably, a first electrically controlled valve is installed between the conveying pipe and the tank.

[0010] Preferably, a material inlet is installed on the other side wall of the tank, a connecting inlet is provided on the side wall of the feeding tank, and a second electrically controlled valve is installed between the material inlet and the connecting inlet.

[0011] Preferably, a discharge valve is installed between the feeding tank and the inlet.

[0012] Preferably, both the exhaust canister and the exhaust pump are bolted to the assembly frame, and multiple sets of support plates arranged in upper and lower levels are installed in the middle of the assembly frame, with the exhaust canister and the exhaust pump arranged in upper and lower levels.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, before the film material enters the feeding tank, it first enters the exhaust tank and is temporarily stored in the exhaust tank. During the temporary storage process, the exhaust pump is used to exhaust the exhaust tank to remove excess air and prevent the film material from being mixed with air and entering the extrusion molding machine. In the above structure, the entire process is connected by pipelines, which not only prevents gas from entering during the transportation process, but also reduces the influence of external dust and impurities. This solves the problem that when the feeding port of the existing film forming device is always in an open state, dust and impurities are easily introduced during feeding, and a certain proportion of air is easily mixed between the raw materials, which can easily cause subsequent film breakage and affect the quality of the subsequent film product.

[0015] (2) In this utility model, the exhaust tank is fed through a conveying pipe. The opening and closing state of the pipe is controlled by a first solenoid valve. When feeding, the pipe is open, and when venting, the pipe is closed to prevent gas from entering. The exhaust tank is fed into the feeding tank through the conveying port. A second solenoid valve is installed on the pipe to open when feeding and close when venting. When the feeding tank is not discharging, the discharge valve at the bottom is also closed. Through the setting of the pipes and valves at the above-mentioned multiple different positions, the sealing of the film forming process of feeding, conveying and venting can be effectively improved to ensure normal venting operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the entire utility model from another perspective;

[0018] Figure 3 This is a schematic diagram of the exhaust tank structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the exhaust tank and the feed tank of this utility model;

[0020] In the diagram: 1. Extrusion molding machine; 101. Feed inlet; 2. Feeding tank; 201. Discharge valve; 202. Connecting inlet; 3. Assembly frame; 301. Supporting shelf; 4. Exhaust tank; 401. Tank body; 402. Feeding pipe; 403. First solenoid valve; 404. Cover; 405. Pressure sensor; 406. Feeding port; 5. Exhaust pump; 501. Exhaust pipe; 6. Second solenoid valve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1 , Figure 2 , Figure 3 This utility model provides an embodiment of a high-wear-resistant polyolefin film forming device, comprising: an extrusion molding machine 1, an inlet 101 above the extrusion molding machine 1, a feeding tank 2 above the inlet 101, an exhaust tank 4 connected to one side of the feeding tank 2 via a pipeline, an exhaust pump 5 connected to one side of the exhaust tank 4 via a pipeline, a conveying pipe 402 installed at the front end of the exhaust tank 4, and the exhaust tank 4 including a tank body 401, which is connected to the exhaust pump 5 via an exhaust pipe 501; before entering the feeding tank 2, the film material first enters the exhaust tank 4 and is temporarily stored there. During the temporary storage process, the exhaust pump 5 vents the exhaust tank 4 to remove excess air, preventing air from entering the extruder. In the above structure, the entire process is connected via pipelines, which not only prevents gas from entering during the conveying process but also reduces the influence of external dust and impurities. Furthermore, as... Figure 3 As shown, a cover 404 is installed on the top of the tank 401, and a pressure sensor 405 is installed on the outer wall of the cover 404, with the detection end of the pressure sensor 405 extending into the tank 401; the pressure sensor 405 detects the air content inside, allowing users to more accurately control the exhaust status of the tank 401.

[0023] Please see Figure 1 , Figure 3 , Figure 4 A first electrically controlled valve 403 is installed between the conveying pipe 402 and the tank 401. A conveying port 406 is installed on the other side wall of the tank 401. A connecting inlet 202 is provided on the side wall of the feeding tank 2. A second electrically controlled valve 6 is installed between the conveying port 406 and the connecting inlet 202. A discharge valve 201 is installed between the feeding tank 2 and the inlet 101. The exhaust tank 4 is fed through the conveying pipe 402. The opening and closing status of this pipe is controlled by the first electrically controlled valve 403. During feeding, the pipe... When the gas is being discharged, the pipeline is closed to prevent gas from entering. The gas is fed into the feeding tank 2 through the pipeline at the feeding port 406. A second electrically controlled valve 6 is installed on this pipeline to open when feeding and close when venting. When the feeding tank 2 is not discharging, the discharge valve 201 at its bottom is also closed. Through the setting of pipelines and valves at multiple different locations, the sealing performance during the feeding, feeding and venting process of the film forming can be effectively improved, ensuring normal venting operation.

[0024] Please see Figure 2 , Figure 3 Both the exhaust tank 4 and the exhaust pump 5 are bolted to the assembly frame 3. Multiple sets of support plates 301 arranged in upper and lower layers are installed in the middle of the assembly frame 3. The exhaust tank 4 and the exhaust pump 5 are arranged in upper and lower layers. The assembly frame 3 and the support plates 301 can fix and support the feeding tank 2 and the exhaust pump 5.

[0025] 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 high-wear-resistant polyolefin film forming device, comprising an extrusion molding machine (1), characterized in that: The extrusion molding machine (1) is provided with a feed inlet (101) above it. A feeding tank (2) is installed above the feed inlet (101). An exhaust tank (4) is connected to one side of the feeding tank (2) through a pipeline. An exhaust pump (5) is connected to one side of the exhaust tank (4) through a pipeline. A conveying pipe (402) is installed at the front end of the exhaust tank (4).

2. The high-wear-resistant polyolefin film forming device according to claim 1, characterized in that: The exhaust tank (4) includes a tank body (401), which is connected to the exhaust pump (5) via an exhaust pipe (501).

3. The high-wear-resistant polyolefin film forming device according to claim 2, characterized in that: A cover (404) is installed on the top of the tank (401), and a pressure sensor (405) is installed on the outer wall of the cover (404), with the detection end of the pressure sensor (405) extending into the tank (401).

4. The high-wear-resistant polyolefin film forming device according to claim 2, characterized in that: A first electrically controlled valve (403) is installed between the conveying pipe (402) and the tank (401).

5. The high-wear-resistant polyolefin film forming device according to claim 2, characterized in that: A feeding port (406) is installed on the other side wall of the tank (401), and a connecting inlet (202) is provided on the side wall of the feeding tank (2). A second electric control valve (6) is installed between the feeding port (406) and the connecting inlet (202).

6. The high-wear-resistant polyolefin film forming device according to claim 1, characterized in that: A discharge valve (201) is installed between the feeding tank (2) and the inlet (101).

7. The high-wear-resistant polyolefin film forming device according to claim 1, characterized in that: The exhaust canister (4) and the exhaust pump (5) are both bolted to the assembly frame (3). Multiple sets of support plates (301) arranged in upper and lower layers are installed in the middle of the assembly frame (3). The exhaust canister (4) and the exhaust pump (5) are arranged in upper and lower layers.

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