A new type of dust removal mechanism

Abstract

This utility model discloses a novel dust removal mechanism, relating to the field of bottle preform dust removal technology, including a lifting unit, a dust removal unit, and an annular guide rail. The lifting unit is movably mounted on the annular guide rail and can move along the extension direction of the annular guide rail, used to control the movement of the dust removal unit. The dust removal unit is mounted on the lifting unit and is used to remove dust from the bottle preform. It has a covering chamber that covers the port of the bottle preform and a dust discharge groove opened in the wall of the covering chamber. The covering chamber can completely cover the port of the bottle preform, forming a relatively closed dust removal space, preventing dust from splashing into the external environment or the interior of the heating machine during the blowing process. The dust discharge groove serves as a dust discharge channel, directionally discharging the dust collected in the covering chamber, preventing dust from accumulating near the port of the bottle preform. During dust removal, there is no wind pressure loss at the bottle preform opening, facilitating the effective extraction of dust blown out of the bottle preform and preventing dust accumulation near the dust removal area of ​​the heating machine.

Description

Technical Field

[0001] This utility model relates to the field of bottle preform dust removal technology, specifically to a novel dust removal mechanism. Background Technology

[0002] Blow molding is a plastic molding process that involves heating a plastic preform and injecting high-pressure air to make it expand and fit into a mold, ultimately forming a hollow container (such as a beverage bottle or medicine bottle). In the blow molding process of a rotary blow molding machine, the preform must undergo dust removal treatment before entering the heating furnace to meet the cleanliness requirements of the preform's interior.

[0003] In existing bottle blowing processes, the dust removal mechanism often has its exhaust port located directly above the dust removal circular dial, with relatively dense air passages and lines laid in the middle. During dust removal, this can easily cause air pressure loss at the bottle preform opening, making it impossible to effectively remove the dust blown out of the bottle preform, resulting in dust accumulation near the dust removal area of ​​the heating machine. Utility Model Content

[0004] The purpose of this utility model is to provide a new type of dust removal mechanism to solve the technical problem in most existing dust removal mechanisms in bottle blowing processes, where the exhaust port is often located directly above the dust removal circular dial, with relatively dense air passages and lines laid in the middle. During dust removal, this can easily cause air pressure loss at the bottle preform opening, making it impossible to effectively remove the dust blown out of the bottle preform, resulting in dust accumulation near the dust removal area of ​​the heating machine.

[0005] This utility model proposes a novel dust removal mechanism, including a lifting unit, a dust removal unit, and a ring guide rail; The lifting unit is movably mounted on the annular guide rail and can move along the extension direction of the annular guide rail to control the movement of the dust removal unit. The dust removal unit is mounted on the lifting unit and is used to remove dust from the preform. It has a covering chamber that covers the port of the preform and a dust discharge groove opened on the wall of the covering chamber. When the lifting unit moves along the annular guide rail, the dust removal unit inserts into the bottle preform to blow air, and foreign objects inside the bottle preform are blown into the covering chamber and discharged through the dust discharge groove.

[0006] Preferably, the annular guide rail is located below the preform and is inclined.

[0007] Preferably, the lifting unit includes a guide column, a guide sleeve, and a dial; The guide post is movably mounted on the annular guide rail, and the guide sleeve is movably fitted on the outside of the guide post to guide and limit the guide post. The dial is mounted on the guide sleeve and is used to drive the guide sleeve to move. The dial is provided with a feeding groove for placing the preform.

[0008] Preferably, the bottom end of the guide post is provided with a connecting base, and the connecting base is provided with a bearing that matches the annular guide rail.

[0009] Preferably, an elastic element is sleeved on the outer side of the guide post, the elastic element is located below the guide sleeve, and the two ends of the elastic element are provided with retaining rings that match the guide post.

[0010] Preferably, a connecting rod is provided at the top of the guide post, and a connecting post for connecting the dust removal unit is provided on one side of the connecting rod.

[0011] Preferably, the dust removal unit includes an air distribution block and an air blowing shaft tube; The gas distribution block is mounted on the connecting column and has a diversion channel inside for diverting clean gas to the blowing shaft tube. The blowing shaft is mounted on the gas distribution block and can be inserted into the interior of the preform. Its interior has a gas flow channel that communicates with the distribution channel.

[0012] Preferably, the dust removal unit further includes a dust removal guide tube; The dust removal guide tube is sleeved on the outside of the air blowing shaft tube, and the inner wall of the dust removal guide tube forms the covering chamber. The side wall of the dust removal guide tube is provided with a dust discharge groove.

[0013] Preferably, the top of the air distribution block is provided with an air inlet connector that communicates with the distribution channel.

[0014] Preferably, an exhaust hood is mounted on one side of the dust removal guide tube, and the exhaust hood is distributed close to the dust discharge trough.

[0015] Compared with the prior art, this utility model has at least the following beneficial effects: In this utility model, the covering chamber can completely cover the bottle preform port, forming a relatively closed dust removal space, avoiding dust splashing into the external environment or the interior of the heater during the blowing process. The dust discharge trough serves as a dust discharge channel, directionally discharging the dust collected in the covering chamber, preventing dust from accumulating near the bottle preform port. During dust removal, there will be no loss of wind pressure at the bottle preform port, making it convenient to effectively extract the dust blown out of the bottle preform, and avoiding dust accumulation near the dust removal area of ​​the heater. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a three-dimensional schematic diagram of the dust removal mechanism in one embodiment of the present invention; Figure 2 This is a schematic diagram of the dust removal mechanism in one embodiment of the present invention; Figure 3 This is a schematic diagram of the distribution of the exhaust hood in one embodiment of this utility model.

[0018] In the diagram: 1. Connecting base; 2. Guide post; 3. Connecting rod; 4. Connecting column; 5. Air distribution block; 6. Air blowing shaft tube; 7. Dust removal guide tube; 8. Covering chamber; 9. Dust discharge trough; 10. Bearing; 11. Elastic element; 12. Retaining ring; 13. Circular guide rail; 14. Guide sleeve; 15. Diverting channel; 16. Dial plate; 17. Bottle preform; 18. Air inlet connector; 19. Exhaust hood. Detailed Implementation

[0019] The specific embodiments of this utility model are described in detail below, but it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0020] like Figure 1-3 As shown, a novel dust removal mechanism includes a lifting unit, a dust removal unit, and an annular guide rail 13. The annular guide rail 13 is located below the preform 17 and is inclined.

[0021] The lifting unit is movably mounted on the annular guide rail 13 and can move along the extension direction of the annular guide rail 13 to control the movement of the dust removal unit.

[0022] The dust removal unit is installed on the lifting unit and is used to remove dust from the preform 17. It has a covering chamber 8 covering the port of the preform 17 and a dust discharge groove 9 opened on the wall of the covering chamber 8.

[0023] When the lifting unit moves along the annular guide rail 13, the dust removal unit is inserted into the bottle blank 17 to blow air, and the foreign objects inside the bottle blank 17 are blown into the covering chamber 8 and discharged through the dust discharge groove 9.

[0024] Specifically, the annular guide rail 13 serves as the motion guide component of the lifting unit. Its inclined layout is adapted to the conveying trajectory of the preform 17. Through the design of its own inclined angle, it provides a motion travel reference for the lifting unit to move up and down, ensuring that the dust removal unit can be accurately inserted into the preform 17 when it moves with the lifting unit. At the same time, it provides stable guiding support for the continuous rotation dust removal of the entire mechanism, ensuring the smooth operation of multi-station continuous dust removal.

[0025] Furthermore, the covering chamber 8 can completely cover the port of the preform 17, forming a relatively closed dust removal space to prevent dust from splashing into the external environment or the interior of the heater during the blowing process. The dust discharge trough 9 serves as a dust discharge channel to directionally discharge the dust collected in the covering chamber 8, preventing dust from accumulating near the port of the preform 17 and providing a path guarantee for the subsequent dust extraction by the exhaust hood 19.

[0026] Furthermore, the arrangement of the covering chamber 8 and the dust discharge trough 9 is a departure from the traditional design where the exhaust port is located directly above the dust removal circular dial, with relatively dense air passages and lines laid in the middle. This design prevents air pressure loss at the bottle preform opening during dust removal, making it easier to effectively remove the dust blown out of the bottle preform and avoid dust accumulation near the dust removal area of ​​the heating machine.

[0027] like Figure 1-3 As shown, in this embodiment, the lifting unit includes a guide post 2, a guide sleeve 14, and a dial 16.

[0028] The guide post 2 is movably mounted on the annular guide rail 13, and the guide sleeve 14 is movably sleeved on the outside of the guide post 2 to guide and limit the guide post 2.

[0029] The dial 16 is mounted on the guide sleeve 14 and is used to drive the guide sleeve 14 to move. The dial 16 is provided with a feeding groove for placing the preform 17.

[0030] Specifically, while the dial 16 drives the guide sleeve 14 to rotate horizontally, it can also drive the guide post 2 to move on the annular guide rail 13. Since the annular guide rail 13 is inclined, the guide post 2 will undergo periodic up-and-down movement within the guide sleeve 14 during the rotation of the guide sleeve 14, thereby driving the dust removal unit to move closer to or away from the preform 17, providing stroke guarantee for the dust removal operation.

[0031] Specifically, the guide sleeve 14 provides precise guidance and limits for the movement of the guide post 2, preventing the guide post 2 from shifting or shaking during the lifting process, ensuring that the guide post 2 drives the dust removal unit to move smoothly, and ensuring that the blowing shaft tube 6 is accurately inserted into the bottle preform 17.

[0032] Specifically, the dial 16 serves as both a positioning and power transmission function for the preform 17. The feeding trough can limit and fix the preform 17 to prevent it from shifting during dust removal. At the same time, the rotation of the dial 16 drives the guide sleeve 14 to rotate synchronously, thereby driving the entire lifting unit to move along the extension direction of the annular guide rail 13.

[0033] like Figure 1 As shown, in this embodiment, the bottom end of the guide post 2 is provided with a connecting base 1, and the connecting base 1 is provided with a bearing 10 that matches the annular guide rail 13.

[0034] Specifically, the connecting base 1 provides an installation foundation for the bearing 10. The rolling engagement between the bearing 10 and the annular guide rail 13 converts the sliding friction between the lifting unit and the annular guide rail 13 into rolling friction, which greatly reduces the motion resistance, ensures that the lifting unit moves smoothly along the annular guide rail 13, and improves the service life of the mechanism.

[0035] like Figure 1As shown, in this embodiment, an elastic element 11 is sleeved on the outer side of the guide post 2. The elastic element 11 is located below the guide sleeve 14, and retaining rings 12 that match the guide post 2 are provided at both ends of the elastic element 11.

[0036] Specifically, the elastic element 11 provides elastic support for both the guide post 2 and the bearing 10. The elastic element 11 helps the guide post 2 to reset and also counteracts the inertia generated during the upgrading movement of the guide post 2, ensuring the stability of the upgrading process of the guide post 2. This ensures that the lifting unit moves up and down synchronously with the tilt angle of the annular guide rail 13, thereby ensuring the precise docking of the dust removal unit and the preform 17. At the same time, the elastic element 11 provides continuous elastic support to the bearing 10 through its own elastic deformation, ensuring that the bearing 10 always fits tightly against the upper guide surface of the annular guide rail 13, thus ensuring the stability of the guide post 2 when it moves along the annular guide rail 13.

[0037] In one embodiment of this application, the elastic element 11 is a spring. On the one hand, this allows the elastic element 11 to have good elasticity, so as to provide good elastic support for the bearing 10. On the other hand, it also makes the elastic element 11 a standard part, which is easy to obtain and relatively inexpensive, thus helping to reduce manufacturing costs.

[0038] like Figure 1 As shown in this embodiment, a connecting rod 3 is provided at the top of the guide post 2, and a connecting post 4 for connecting the dust removal unit is provided on one side of the connecting rod 3.

[0039] Specifically, the connecting rod 3 and the connecting column 4 achieve a stable assembly of the lifting unit and the dust removal unit, ensuring that the movement of the lifting unit can be accurately transmitted to the dust removal unit. At the same time, the structural layout of the connecting rod 3 and the connecting column 4 makes the installation position of the dust removal unit compatible with the working position of the preform 17. like Figure 1 As shown, in this embodiment, the dust removal unit includes an air distribution block 5 and an air blowing shaft pipe 6.

[0040] The gas distribution block 5 is installed on the connecting column 4, and has a diversion channel 15 inside, which is used to divert clean gas to the blowing shaft tube 6.

[0041] The blowing shaft tube 6 is installed on the gas distribution block 5 and can be inserted into the interior of the preform 17. Its interior has a gas flow channel that communicates with the diversion channel 15.

[0042] The top of the air distribution block 5 is provided with an air inlet connector 18 that communicates with the diversion channel 15.

[0043] Specifically, the gas distribution block 5 undertakes the functions of gas diversion and connection fixation. The air inlet connector 18 is used to connect external clean gas. The air inlet connector 18 serves as the connection interface between the external gas source and the gas distribution block 5, enabling rapid access to clean gas. At the same time, it facilitates the disassembly and maintenance of the gas source pipeline, improving the practicality of the mechanism. The diversion channel 15 evenly distributes the accessed gas into the gas flow channel of the blowing shaft tube 6, ensuring that the blowing shaft tube 6 outputs a stable and uniform airflow. It also provides an installation foundation for the blowing shaft tube 6 and the dust removal guide tube 7, ensuring the stability of the overall structure of the dust removal unit. The blowing shaft tube 6, as a gas injection component, accurately delivers the clean gas after being diverted by the diversion channel 15 to the inside of the preform 17. The impact force of the airflow blows out the dust, debris, and other foreign objects inside the preform 17, providing a power source for dust removal operations.

[0044] like Figure 1 As shown in the figure, in this embodiment, the dust removal unit also includes a dust removal guide tube 7.

[0045] The dust removal guide tube 7 is sleeved on the outside of the air blowing shaft tube 6. The inner wall of the dust removal guide tube 7 forms a covering chamber 8. The side wall of the dust removal guide tube 7 is provided with a dust discharge groove 9.

[0046] like Figure 3 As shown, in this embodiment, a dust removal guide tube 7 is provided with an exhaust hood 19 on one side, and the exhaust hood 19 is distributed close to the dust discharge trough 9.

[0047] Specifically, the dust removal guide tube 7, together with the external fan, creates a negative pressure environment. The dust removal guide tube 7 quickly removes the dust from the covered chamber 8 through the dust discharge trough 9, preventing the dust from lingering in the covered chamber 8 or flowing back into the preform 17, ensuring that the dust is completely discharged and improving the dust removal efficiency.

[0048] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios: The preforms 17 to be dusted are placed one by one into the feeding trough of the dial plate 16. The feeding trough limits and fixes the preforms 17 to ensure that the ends of the preforms 17 face upwards and are in a precise position.

[0049] When the fully automatic rotary blow molding machine is started, the dial 16 begins to rotate, driving the guide sleeve 14, guide post 2 and dust removal unit to move synchronously along the extension direction of the annular guide rail 13. During this process, the elastic element 11 keeps the bearing 10 in close contact with the upper guide surface of the annular guide rail 13 through elastic support. Since the annular guide rail 13 is inclined, the guide post 2 moves up and down with the tilt angle of the annular guide rail 13 under the guidance of the guide sleeve 14.

[0050] When the dust removal unit moves with the lifting unit to the corresponding work position of the preform 17, the blowing shaft tube 6 is precisely inserted into the interior of the preform 17, and at the same time, the covering chamber 8 of the dust removal guide tube 7 completely covers the port of the preform 17, forming a semi-enclosed dust removal space.

[0051] Clean gas is introduced into the gas distribution block 5 through the air inlet connector 18. After being diverted by the diversion channel 15, the gas enters the gas flow channel of the blowing shaft tube 6 and is sprayed out into the bottle preform 17 by the blowing shaft tube 6. The airflow forms an impact force inside the bottle preform 17, blowing dust, debris and other foreign objects out into the covering chamber 8. At the same time, the external fan is started, and the exhaust hood 19 forms a negative pressure near the dust discharge trough 9. The dust in the covering chamber 8 is quickly extracted through the dust discharge trough 9.

[0052] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0053] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A novel dust removal mechanism, characterized in that: Includes a lifting unit, a dust removal unit and a circular guide rail (13); The lifting unit is movably mounted on the annular guide rail (13) and can move along the extension direction of the annular guide rail (13) to control the movement of the dust removal unit; The dust removal unit is installed on the lifting unit and is used to remove dust from the preform (17). It has a covering chamber (8) covering the port of the preform (17) and a dust discharge groove (9) opened on the wall of the covering chamber (8). When the lifting unit moves along the annular guide rail (13), the dust removal unit inserts into the bottle blank (17) to blow air, and the foreign objects inside the bottle blank (17) are blown into the covering chamber (8) and discharged through the dust discharge groove (9).

2. The novel dust removal mechanism according to claim 1, characterized in that, The annular guide rail (13) is located below the preform (17) and is inclined.

3. The novel dust removal mechanism according to claim 1, characterized in that, The lifting unit includes a guide column (2), a guide sleeve (14), and a dial (16). The guide post (2) is movably mounted on the annular guide rail (13), and the guide sleeve (14) is movably mounted on the outside of the guide post (2) to guide and limit the guide post (2); The dial (16) is disposed on the guide sleeve (14) for driving the guide sleeve (14) to move, and the dial (16) is provided with a feeding groove for placing the preform (17).

4. The novel dust removal mechanism according to claim 3, characterized in that, The bottom end of the guide post (2) is provided with a connecting base (1), and the connecting base (1) is provided with a bearing (10) that matches the annular guide rail (13).

5. A novel dust removal mechanism according to claim 3, characterized in that, An elastic element (11) is sleeved on the outside of the guide post (2). The elastic element (11) is located below the guide sleeve (14). Both ends of the elastic element (11) are provided with retaining rings (12) that match the guide post (2).

6. A novel dust removal mechanism according to claim 3, characterized in that, The top of the guide post (2) is provided with a connecting rod (3), and a connecting post (4) for connecting the dust removal unit is provided on one side of the connecting rod (3).

7. A novel dust removal mechanism according to claim 6, characterized in that, The dust removal unit includes an air distribution block (5) and an air blowing shaft pipe (6); The gas distribution block (5) is disposed on the connecting column (4) and has a diversion channel (15) inside for diverting clean gas to the blowing shaft tube (6); The blowing shaft tube (6) is set on the gas distribution block (5) and can be inserted into the interior of the preform (17). Its interior has a gas flow channel that is connected to the diversion channel (15).

8. The novel dust removal mechanism according to claim 1, characterized in that, The dust removal unit also includes a dust removal guide tube (7); The dust removal guide tube (7) is sleeved on the outside of the air blowing shaft tube (6), and the inner wall of the dust removal guide tube (7) forms the covering chamber (8). The side wall of the dust removal guide tube (7) is provided with a dust discharge groove (9).

9. A novel dust removal mechanism according to claim 7, characterized in that, The top of the air distribution block (5) is provided with an air inlet connector (18) that communicates with the diversion channel (15).

10. A novel dust removal mechanism according to claim 8, characterized in that, A ventilation hood (19) is mounted on one side of the dust removal guide tube (7), and the ventilation hood (19) is distributed close to the dust discharge trough (9).

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