Plastic extruder with semi-automatic vacuum cleaning structure

Abstract

The utility model discloses a plastic extruder with a semi-automatic vacuum cleaning structure, which is characterized in that an exhaust passage is of a cylindrical structure with an opening in the top, and an openable top cover is arranged at one end, far away from an exhaust hole, of the exhaust passage; a cleaning disc is arranged in the exhaust channel, and the outer contour of the cleaning disc can be attached to the inner wall of the exhaust channel. Communicating holes corresponding to the exhaust holes are formed in the cleaning disc; a lifting assembly is arranged on one side of the exhaust channel; the lifting assembly can pull up the cleaning disc from the lower portion of the exhaust channel to the top cover. The lifting assembly can drive the cleaning disc to be lifted upwards and scrape and cut materials on the inner wall of the exhaust channel at the same time, the stacked materials are lifted to the top cover at the same time in the cleaning disc lifting process, workers can clean the materials stacked on the cleaning disc by opening the top cover, maintenance personnel can quickly clean the exhaust channel when needing to clean, and the maintenance efficiency is improved. The phenomenon that the exhaust hole is blocked is effectively avoided, and the operation safety and the production continuity are improved.

Description

Technical Field

[0001] This utility model relates to the field of extrusion injection molding production equipment technology, and in particular to a plastic extruder with a semi-automatic vacuum cleaning structure. Background Technology

[0002] The injection mechanism of an injection molding machine includes a storage tank and a barrel channel. The storage tank stores plastic granules and adds them to the barrel channel. The barrel channel contains a screw and a heating mechanism to heat the molten plastic granules and inject the molten plastic into the mold. However, in the high-temperature melting environment, the plastic granules undergo agitation and reaction changes, leading to odor generation, which seriously affects the injection molding working environment for operators. In existing technology, an vent is usually provided on one side of the barrel channel. This vent is connected to a negative pressure mechanism through an exhaust channel to vacuum-extract odor molecules from the barrel channel. However, molten plastic can be partially drawn into the exhaust channel, causing blockage of the vent and requiring frequent cleaning by workers. Molten plastic adheres to the exhaust channel and vent, making cleaning difficult. Therefore, further improvements are needed. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a plastic extruder with a semi-automatic vacuum cleaning structure.

[0004] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a plastic extruder with a semi-automatic vacuum cleaning structure, including a barrel channel, in which an extrusion screw is provided; the barrel channel is provided with an exhaust hole; the exhaust hole is connected to an exhaust channel; the exhaust channel is connected to a negative pressure mechanism;

[0005] The exhaust channel has a cylindrical structure with an open top, and an openable top cover is provided at the end away from the exhaust hole; a cleaning disc is provided inside the exhaust channel, and the outer contour of the cleaning disc can fit against the inner wall of the exhaust channel; the cleaning disc has a connecting hole corresponding to the exhaust hole.

[0006] A lifting assembly is provided on one side of the exhaust channel; the lifting assembly can pull the cleaning disc from below the exhaust channel toward the top cover.

[0007] Optionally, the lifting assembly is provided with a lifting hook; the lifting hook is used to hook up the cleaning tray.

[0008] Optionally, the cleaning tray is provided with a connecting post, which can abut against the bottom end of the top cover; the top end of the connecting post is provided with a hook ring.

[0009] Optionally, the lifting assembly is provided with an electrically driven component for moving the lifting hook.

[0010] Optionally, the electric drive assembly is an electric winch or an electric cylinder structure.

[0011] Optionally, the lifting assembly includes a lifting rod and a rotating base; the lifting rod is rotatably mounted on the rotating base, and the lifting hook is mounted on one end of the lifting rod.

[0012] Optionally, one side of the top cover is rotatably hinged to the exhaust channel.

[0013] The beneficial effects of this invention are as follows: The precise alignment design of the connecting hole and the exhaust hole of the cleaning disc maintains the unobstructed flow of the negative pressure suction channel while forming a dynamic sealing interface between its outer edge and the inner wall of the exhaust channel. The lifting component can drive the cleaning disc to rise upwards, simultaneously scraping the material on the inner wall of the exhaust channel. During the lifting process of the cleaning disc, the accumulated material is also lifted to the top cover. Workers can then clean the accumulated material at the cleaning disc by opening the top cover. This allows maintenance personnel to quickly clean the exhaust channel when cleaning is needed, effectively avoiding the phenomenon of clogging the exhaust hole, improving operational safety and production continuity.

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1 This utility model relates to a plastic extruder.

[0017] Explanation of key component symbols:

[0018] 10. Barrel channel; 11. Vent hole; 20. Extrusion screw; 30. Vent channel; 40. Negative pressure mechanism; 50. Top cover; 60. Cleaning tray; 61. Connecting hole; 62. Connecting column; 63. Hook ring; 70. Lifting assembly; 71. Lifting hook; 72. Lifting rod; 73. Rotating seat. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0022] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Example

[0024] Reference Figure 1 The present invention proposes a plastic extruder with a semi-automatic vacuum cleaning structure, including a barrel channel 10, an extrusion screw 20 disposed inside the barrel channel 10; an exhaust hole 11 is provided in the barrel channel 10; the exhaust hole 11 is connected to an exhaust channel 30; and the exhaust channel 30 is connected to a negative pressure mechanism 40.

[0025] The exhaust channel 30 has a cylindrical structure with an open top, and an openable top cover 50 is provided at the end away from the exhaust hole 11; a cleaning disc 60 is provided inside the exhaust channel 30, and the outer contour of the cleaning disc 60 can fit the inner wall of the exhaust channel 30; the cleaning disc 60 has a connecting hole 61 corresponding to the exhaust hole 11.

[0026] A lifting assembly 70 is provided on one side of the exhaust channel 30; the lifting assembly 70 can pull the cleaning disc 60 from below the exhaust channel 30 toward the top cover 50.

[0027] In this invention, the connecting hole 61 of the cleaning disc 60 is precisely aligned with the exhaust hole 11. While maintaining the unobstructed negative pressure suction channel, its outer edge forms a dynamic sealing interface with the inner wall of the exhaust channel 30. The lifting component 70 can drive the cleaning disc 60 to lift upwards, simultaneously scraping the material on the inner wall of the exhaust channel 30. During the lifting process of the cleaning disc 60, the accumulated material is simultaneously lifted to the top cover 50. Workers can clean the material accumulated at the cleaning disc 60 by opening the top cover 50. This allows maintenance personnel to quickly clean the exhaust channel 30 when cleaning is needed, effectively avoiding the blockage of the exhaust hole 11, improving operational safety and production continuity.

[0028] In this embodiment, the lifting assembly 70 is provided with a lifting hook 71; the lifting hook 71 is used to hook up the cleaning disc 60. Compared with the traditional threaded fixing, this mechanical connection method improves the efficiency of disassembly and assembly, and maintains stable gripping force even in the high-temperature environment of the extruder.

[0029] In this embodiment, the cleaning tray 60 is provided with a connecting post 62, which can abut against the bottom end of the top cover 50; a hook ring 63 is provided at the top end of the connecting post 62. When the top cover 50 is sealed, the cleaning tray 60 can be pressed against the material cylinder channel 10 by abutting against the connecting post 62, so as to prevent negative pressure or molten plastic in the material cylinder channel 10 from lifting the cleaning tray 60.

[0030] The distributed connecting columns 62 adopt a circumferentially symmetrical layout, forming a tension-balanced system through stainless steel cables. This structure prevents the cleaning disc 60 from swaying during lifting, ensuring the concentricity of the scraping action.

[0031] In some embodiments, the lifting assembly 70 is provided with an electrically driven assembly for moving the lifting hook 71. The electrically driven assembly can quickly perform a lifting operation on the lifting hook 71 and the cleaning disc 60 via a switch.

[0032] Specifically, the electric drive component is an electric winch or an electric cylinder structure.

[0033] In some embodiments, the lifting assembly 70 includes a lifting rod 72 and a rotating seat 73; the lifting rod 72 is rotatably mounted on the rotating seat 73, and a lifting hook 71 is mounted on one end of the lifting rod 72. This semi-automatic lifting rod 72 swing structure does not require an additional electro-hydraulic structure, and the operator can manually press to complete the semi-automatic cleaning operation when cleaning is required.

[0034] In this embodiment, to facilitate flipping and opening the top cover 50, one side of the top cover 50 is rotatably hinged to the exhaust channel 30.

[0035] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A plastic extruder with a semi-automatic vacuum cleaning structure, comprising a barrel channel (10) in which an extrusion screw (20) is arranged; the barrel channel (10) is provided with an exhaust hole (11); the exhaust hole (11) is connected with an exhaust channel (30); the exhaust channel (30) is connected with a negative pressure mechanism (40); characterized in that: the exhaust channel (30) is in a top-opened cylindrical structure, and a top cover (50) is arranged at one end of the exhaust channel (30) away from the exhaust hole (11); the exhaust channel (30) is provided with a cleaning disc (60), and the outer contour of the cleaning disc (60) is matched with the inner wall of the exhaust channel (30); the cleaning disc (60) is provided with a communication hole (61) corresponding to the exhaust hole (11); a lifting assembly (70) is arranged on one side of the exhaust channel (30); the lifting assembly (70) can lift the cleaning disc (60) from below the exhaust channel (30) to the top cover (50).

2. The plastic extruder with semi-automatic vacuum cleaning structure according to claim 1, characterized in that: The lifting assembly (70) is provided with a lifting hook (71); the lifting hook (71) is used to hook the cleaning disc (60).

3. The plastic extruder with semi-automatic vacuum cleaning structure according to claim 2, characterized in that: The cleaning disc (60) is provided with a connecting column (62), and the connecting column (62) can abut against the bottom end of the top cover (50); the top end of the connecting column (62) is provided with a hook ring (63).

4. The plastic extruder with semi-automatic vacuum cleaning structure according to claim 2, characterized in that: The lifting assembly (70) is provided with an electric driving assembly, which is used to move the lifting hook (71).

5. The plastic extruder with semi-automatic vacuum cleaning structure according to claim 4, characterized in that: The electric driving assembly is in an electric winch or electric cylinder structure.

6. The plastic extruder with semi-automatic vacuum cleaning structure according to claim 2, characterized in that: The lifting assembly (70) is provided with a lifting rod (72) and a rotating seat (73); the lifting rod (72) is rotatably installed on the rotating seat (73), and the lifting hook (71) is installed on one end of the lifting rod (72).

7. The plastic extruder with semi-automatic vacuum cleaning structure as claimed in claim 2, wherein: One side of the top cover (50) is rotatably connected with the exhaust channel (30).

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