Discharging device for PET (Polyethylene Terephthalate) film production
By introducing filtration and mixing components into the PET film production discharge device, the problems of equipment blockage and uneven mixing caused by raw material impurities are solved, achieving efficient filtration and uniform mixing of raw materials, and improving the production quality and efficiency of PET film.
Patent Information
- Application Number
- CN202520451868.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Existing PET film production discharge devices fail to effectively filter particulate impurities in raw materials, leading to equipment blockage, reduced PET film production quality, and low mixing efficiency.
Design a PET film production discharge device that includes a raw material tank, a filter assembly, a mixing tank, and a mixing assembly. The raw material is filtered by the filter element in the filter assembly and mixed by the mixing blades of the mixing assembly to ensure the purity and uniformity of the raw material.
It effectively removes particulate impurities from raw materials, prevents equipment blockage, improves the purity and uniformity of raw materials, and enhances the quality and efficiency of PET film production.
Smart Images

Figure CN223820862U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PET film production technology, and in particular to a PET film production discharge device. Background Technology
[0002] PET film is a versatile packaging film with good transparency and gloss; it also has good airtightness and aroma retention; moderate moisture resistance, with moisture permeability decreasing at low temperatures. PET film possesses excellent mechanical properties, with the best toughness among all thermoplastics, and its tensile strength and impact resistance are significantly higher than those of ordinary films.
[0003] The utility model patent with publication number CN 219788898 U discloses a PET film production discharge device, which uses a material hopper in conjunction with a flow electromagnetic valve to precisely control the material falling from the hopper, thereby achieving the discharge process without the need for manual weighing, thus improving the overall production efficiency.
[0004] However, it lacks the ability to filter raw materials. The raw materials are directly fed into the equipment for mixing, which can easily cause particulate impurities that have entered the raw materials to mix together, leading to equipment blockage and damage. This also affects the production quality of PET film. The equipment's feeding and mixing process is also quite troublesome, requiring a conveyor belt for step-by-step operation, resulting in low efficiency and affecting the processing efficiency of the equipment. Therefore, we need to upgrade and modify the existing technology to overcome the existing problems and shortcomings. Utility Model Content
[0005] The purpose of this invention is to provide a PET film production discharge device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] Design a PET film production discharge device, including a device body, which contains a raw material tank, a filter assembly, a batching tank, and a stirring assembly. The raw material tank is equipped with multiple sets of partition plates inside, and multiple sets of discharge pipes are provided at the bottom of the raw material tank, with solenoid valves at the lower ends of the discharge pipes. The filter assembly is connected to the lower ends of the multiple sets of discharge pipes. The batching tank is equipped with an upper cover plate at the top and a discharge pipe at the bottom, and is connected to the lower end of the filter assembly. The stirring assembly is installed at the center of the batching tank. The lower ends of the raw material tank and the batching tank are equipped with lower supports, and the lower ends of the lower supports are equipped with casters.
[0008] Furthermore, the filter assembly includes a central box, which is disposed on the upper cover plate and has a guide pipe installed at its lower end.
[0009] Furthermore, the stirring assembly includes a motor, the lower end of which is connected to a rotating shaft and a stirring blade is fixed to the outside of the rotating shaft, and a connecting rod is provided at the outer end of the stirring blade.
[0010] Furthermore, the front end of the central box is provided with two sets of insertion slots, in which filter elements are installed and the outer ends of the filter elements are provided with sealing caps, and the two sets of filter elements are arranged vertically in correspondence.
[0011] Furthermore, the upper end of the central box is connected to multiple sets of feeding pipes, and the feeding pipes pass through the upper cover plate and lead to the mixing barrel.
[0012] Furthermore, the motor is located on the top of the upper cover plate and has a fixing frame on the outside. The fixing frame is fixed to the upper cover plate, and the rotating shaft and stirring blade are rotatably arranged inside the mixing tank.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model is equipped with a raw material tank, a filter assembly, a collection box, a feed pipe, a connector slot, a filter element, and a sealing cap. The filter element filters the added raw materials, and the feed pipe passes the filtered raw materials into the mixing tank. This process removes particles and impurities from the coating, prevents clogging and equipment damage, improves the purity of the raw materials, and ensures the production quality of PET film.
[0015] 2. This utility model is equipped with a mixing tank, a stirring assembly, a motor, a rotating shaft, stirring blades, a connecting rod, and a fixing frame. The motor drives the rotating shaft and stirring blades to rotate, and the stirring blades stir and mix the raw materials inside the mixing tank, thereby accelerating the mixing of raw materials, improving discharge efficiency and quality, ensuring uniform mixing of raw materials, improving the production quality of PET film, and enhancing the practicality of the device.
[0016] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications, and equivalents. Attached Figure Description
[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0018] Figure 1This is a schematic diagram of the overall structure of a PET film production discharge device according to the present invention;
[0019] Figure 2 This is a cross-sectional view of the internal structure of a PET film production discharge device according to the present invention;
[0020] Figure 3 An exploded view of the filter assembly of a PET film production discharge device according to this utility model;
[0021] Figure 4 An exploded view of the stirring assembly of a PET film production discharge device according to this utility model.
[0022] In the diagram: 1. Main body of the device; 2. Raw material tank; 21. Divider plate; 22. Feed pipe; 23. Solenoid valve; 3. Filter assembly; 31. Centralized box; 32. Feed guide pipe; 33. Insertion groove; 34. Filter element; 35. Sealing cover; 4. Batching tank; 41. Top cover plate; 42. Discharge pipe; 5. Stirring assembly; 51. Motor; 52. Rotating shaft; 53. Stirring blade; 54. Connecting rod; 55. Fixing frame; 6. Lower support; 61. Casters. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] like Figure 1 As shown in Figure 4, this embodiment provides a PET film production discharge device, including a device body 1. The device body 1 includes a raw material tank 2, a filter assembly 3, a batching tank 4, and a stirring assembly 5. The raw material tank 2 is provided with multiple sets of partition plates 21. The bottom of the raw material tank 2 is provided with multiple sets of discharge pipes 22, and the lower end of the discharge pipes 22 is provided with a solenoid valve 23. The filter assembly 3 is connected to the lower end of the multiple sets of discharge pipes 22. The batching tank 4 is provided with an upper cover plate 41 at the upper end and a discharge pipe 42 at the bottom. The batching tank 4 is connected to the lower end of the filter assembly 3. The stirring assembly 5 is installed in the center position inside the batching tank 4. The lower end of the raw material tank 2 and the batching tank 4 is provided with a lower support 6, and the lower end of the lower support 6 is provided with a moving wheel 61.
[0025] Preferably, the filter assembly 3 includes a central box 31, which is mounted on the upper cover plate 41 and has a guide pipe 32 installed at its lower end. The front end of the central box 31 has two sets of insertion slots 33, in which filter elements 34 are installed and sealed with caps 35 at their outer ends. The two sets of filter elements 34 are arranged vertically. The upper end of the central box 31 is connected to multiple sets of feed pipes 22. The guide pipes 32 pass through the upper cover plate 41 and lead to the mixing tank 4. The two sets of filter elements 34 are installed through the insertion slots 33, and the added raw materials are filtered through the filter elements 34. The filtered raw materials are then fed into the mixing tank 4 through the guide pipes 32. This process can remove particles and impurities from the coating, prevent clogging and damage to the equipment, improve the purity of the raw materials, and ensure the production quality of the PET film.
[0026] Preferably, the stirring assembly 5 includes a motor 51, with a rotating shaft 52 connected to the lower end of the motor 51 and a stirring blade 53 fixed to the outside of the rotating shaft 52. A connecting rod 54 is provided at the outer end of the stirring blade 53. The motor 51 is mounted on the top of the upper cover plate 41 and a fixing frame 55 is provided on its outer side. The fixing frame 55 is fixed to the upper cover plate 41. The rotating shaft 52 and the stirring blade 53 are rotatably disposed inside the mixing tank 4. The rotating shaft 52 and the stirring blade 53 are driven to rotate by the motor 51. The stirring blade 53 stirs and mixes the raw materials inside the mixing tank 4. The connecting rod 54 protects the stability of the stirring blade 53, thereby achieving accelerated mixing of the raw materials. This facilitates improved discharge efficiency and quality, ensures uniform mixing of raw materials, improves the production quality of PET film, avoids sedimentation or uneven mixing of raw materials, and improves the practicality of the device.
[0027] The working principle and process of this utility model are as follows: First, different raw materials can be added into the raw material tank 2 and placed in different partition plates 21. The raw materials are quantitatively fed into the collection box 31 by the solenoid valve 23 and the feed pipe 22. The raw materials are filtered by the filter element 34 and then enter the mixing tank 4 through the guide pipe 32. At this time, the rotating shaft 52 and the stirring blade 53 can be driven by the motor 51 to rotate. The stirring blade 53 stirs and mixes the raw materials in the mixing tank 4, thereby accelerating the mixing operation of the raw materials, improving the discharge efficiency and quality, and ensuring the uniformity of the raw material mixing. When it is necessary to clean and replace the filter element 34, it can be removed by disassembling it through the sealing cover 35.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
Claims
1. A PET film production discharge device, characterized in that: The device includes a main body (1), which contains a raw material tank (2), a filter assembly (3), a mixing tank (4), and a stirring assembly (5). The raw material tank (2) has multiple sets of partition plates (21) inside. The bottom of the raw material tank (2) is provided with multiple sets of discharge pipes (22), and the lower end of the discharge pipes (22) is provided with a solenoid valve (23). The filter assembly (3) is connected to the lower end of the multiple sets of discharge pipes (22). The mixing tank (4) has an upper cover plate (41) at the top and a discharge pipe (42) at the bottom. The mixing tank (4) is connected to the lower end of the filter assembly (3). The stirring assembly (5) is installed in the center of the mixing tank (4). The lower end of the raw material tank (2) and the mixing tank (4) is provided with a lower support (6), and the lower end of the lower support (6) is provided with a moving wheel (61).
2. The PET film production discharge device according to claim 1, characterized in that: The filter assembly (3) includes a collection box (31), which is mounted on an upper cover plate (41) and has a guide pipe (32) installed at its lower end.
3. The PET film production discharge device according to claim 1, characterized in that: The stirring assembly (5) includes a motor (51), the lower end of which is connected to a rotating shaft (52) and a stirring blade (53) is fixed on the outside of the rotating shaft (52). A connecting rod (54) is provided at the outer end of the stirring blade (53).
4. A PET film production discharge device according to claim 2, characterized in that: The central box (31) has two sets of insertion slots (33) at the front end. Filter elements (34) are installed in the insertion slots (33) and the outer end of the filter elements (34) is provided with a sealing cap (35). The two sets of filter elements (34) are arranged vertically and vertically.
5. A PET film production discharge device according to claim 2, characterized in that: The upper end of the central box (31) is connected to multiple sets of feeding pipes (22), and the feeding pipes (32) pass through the upper cover plate (41) and are connected to the mixing barrel (4).
6. A PET film production discharge device according to claim 3, characterized in that: The motor (51) is located on the top of the upper cover plate (41) and a fixing frame (55) is provided on the outside. The fixing frame (55) is fixed to the upper cover plate (41). The rotating shaft (52) and the stirring blade (53) are rotatably arranged inside the mixing tank (4).
Citation Information
Patent Citations
Discharging device for PET (Polyethylene Terephthalate) film production
CN219788898U