A vacuum powder cleaning device for extruder

Abstract

The present invention relates to an extruder vacuum pumping device, and in particular to an extruder vacuum pumping powder cleaning device, comprising a vacuum gauge end and a vacuum pumping end, wherein the vacuum gauge end and the vacuum pumping end are connected to the inner cavity of the barrel of the extruder die head by a direct insertion method, wherein the vacuum gauge end and the vacuum pumping end are driven by a cylinder to move radially through a piston column to achieve the effect of cleaning the inner walls of the first and second vacuum cylinders, and the vacuum gauge end is provided with a vacuum gauge to measure the vacuum degree, and the vacuum pumping outlet of the vacuum pumping end is connected to a vacuum pump by a pipeline to remove the gas and powdery substances generated in the barrel. The present invention solves the problem that the pipeline of the currently used vacuum pumping device is easily blocked, adds a quick disassembly and installation function, uses a cylinder to control the movement of the piston, cleans the dust accumulation residue on the inner wall of the vacuum cylinder, and ensures the normal use of the vacuum pumping device.

Description

Technical Field

[0001] The invention relates to a vacuum pumping device for an extruder, in particular to a vacuum pumping powder cleaning device for an extruder. Background Art

[0002] The extruder will produce some gas and some tiny powdery substances during the heating and extrusion process. In order to ensure the normal operation of the extruder, it is necessary to separate the gas and powdery substances generated during the extrusion process of the extruder, and open a hole in the barrel near the extruder die head to perform vacuum operation to extract the gas and powdery substances. However, after a period of time, the vacuum pipeline will be blocked and difficult to clean. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that the pipeline of the currently used vacuum pumping device is easily blocked, add a quick disassembly and installation function, use a cylinder to control the movement of the piston, clean the dust accumulation residue on the inner wall of the vacuum cylinder, and ensure the normal use of the vacuum pumping device.

[0004] The technical scheme of the present invention is: an extruder vacuum powder cleaning device, comprising a vacuum gauge end and a vacuum end, wherein the vacuum gauge end and the vacuum end are connected to the inner cavity of the barrel of the extruder die head by direct insertion;

[0005] The vacuum gauge end comprises a first vacuum tube and a first cylinder, one end of the first vacuum tube is provided with a first sealing gasket for sealing, the other end of the first vacuum tube is inserted into the barrel of the extruder die head and communicates with the inner cavity of the barrel, a first grooved piston column is provided in the first vacuum tube, the extended shaft of the first cylinder passes through the first sealing gasket and is fixedly connected to the first grooved piston column to push it to move radially, and a vacuum gauge is provided on the side of the first vacuum tube;

[0006] The vacuum end includes a second vacuum cylinder and a second cylinder. One end of the second vacuum cylinder is provided with a second sealing gasket for sealing. The other end of the second vacuum cylinder is inserted into the barrel of the extruder die head and communicates with the inner cavity of the barrel. A second grooved piston column is provided in the second vacuum cylinder. The extended shaft of the second cylinder passes through the second sealing gasket and is fixedly connected to the second grooved piston column to push it to move radially. A vacuum outlet is provided on the side of the second vacuum cylinder, and the vacuum outlet is connected to a vacuum pump with a pipeline.

[0007] The vacuum gauge end and the vacuum pumping end are interference fit with the barrel, and there is sealing material on the barrel hole wall. The vacuum gauge end and the vacuum pumping end only need to be inserted into the installation hole of the barrel to achieve a sealing effect, so as to achieve quick disassembly and installation. At the same time, the first cylinder is used to drive the first grooved piston column to make radial movement in the first vacuum cylinder at the vacuum gauge end, and the second cylinder is used to drive the second grooved piston column to make radial movement in the second vacuum cylinder at the vacuum pumping end. The cylinder pushes the piston column to move to achieve the effect of cleaning the inner walls of the first and second vacuum cylinders. At the vacuum gauge end, the function of the vacuum gauge is to measure the real-time vacuum pressure value in the barrel, and the cylinder pushes the piston column to clean the powder of the vacuum cylinder at the vacuum gauge end; at the vacuum pumping end, the vacuum outlet is connected to the vacuum pump with a pipeline, and the vacuum pump is started to extract the gas and powdery substances generated in the barrel. The cylinder pushes the piston column to clean the powder to ensure the normal operation of the vacuum pumping device.

[0008] Among them, the first sealing gasket and the second sealing gasket have the same structure, and the material they use is high-strength wear-resistant material, which has heat insulation and wear-resistant and corrosion-resistant effects, and ensures that the first and second vacuum cylinders maintain a vacuum state when the first and second cylinders are active.

[0009] Furthermore, a first heat-insulating heightening column is provided between the first cylinder and the first sealing gasket, a first cylinder mounting flange block is provided on the first heat-insulating heightening column for mounting the first cylinder, the first cylinder is fixed to the first cylinder mounting flange block by bolts, and the first cylinder mounting flange block is fixed to the first sealing gasket through the first heat-insulating heightening column. The first heat-insulating heightening column is added, and the material of the part is bakelite, which effectively insulates.

[0010] Furthermore, a first flange gasket is provided at the bottom of the first cylinder mounting flange block, which has heat insulation and wear and corrosion resistance effects, further enhancing the heat insulation effect.

[0011] Furthermore, the first cylinder mounting flange block is provided with a first sealing ring and a first sealing ring baffle for fixing the first sealing ring at the position where the extended shaft of the first cylinder passes through. A first sealing ring is provided between the extended shaft of the first cylinder and the first cylinder mounting flange block, which can effectively prevent the grease leaked during the use of the first cylinder from entering the first vacuum cylinder, and also prevent the fine dust from the first vacuum cylinder from entering the first cylinder cavity.

[0012] Furthermore, a second heat-insulating heightening column is provided between the second cylinder and the second sealing gasket, a second cylinder mounting flange block is provided on the second heat-insulating heightening column for mounting the second cylinder, the second cylinder is fixed to the second cylinder mounting flange block by bolts, and the second cylinder mounting flange block is fixed to the second sealing gasket by the second heat-insulating heightening column. The second heat-insulating heightening column is added, and the material of the part is bakelite, which effectively insulates.

[0013] Furthermore, a second flange gasket is provided at the bottom of the second cylinder mounting flange block, which has heat insulation and wear and corrosion resistance effects, further enhancing the heat insulation effect.

[0014] Furthermore, the second cylinder mounting flange block is provided with a second sealing ring and a second sealing ring baffle for fixing the second sealing ring at the position where the extended shaft of the second cylinder passes through. A second sealing ring is provided between the extended shaft of the second cylinder and the second cylinder mounting flange block, which can effectively prevent the grease leaked during the use of the second cylinder from entering the second vacuum cylinder, and also prevent the fine dust from the second vacuum cylinder from entering the second cylinder cavity.

[0015] Furthermore, the first grooved piston column and the second grooved piston column have the same structure, and grooves are evenly arranged around the cylinder. The piston column is designed with grooves to ensure that the vacuum degree can be accurately measured when the piston column stops moving or moves radially, and the cylinder pushes the piston column to move to achieve the effect of cleaning the inner wall of the vacuum cylinder.

[0016] Furthermore, the first vacuum cylinder is connected to a vacuum gauge, and the installation position of the vacuum gauge is aligned with the groove of the first grooved piston column, so as to ensure that the vacuum gauge can accurately measure the vacuum degree when the first grooved piston column stops moving or moves radially.

[0017] Furthermore, the vacuum outlet is aligned with the groove of the second grooved piston column, ensuring that the vacuum pump can extract the gas and powdery substances generated in the barrel when the second grooved piston column stops moving or moves radially, without affecting the normal operation of the vacuum device.

[0018] The structural composition of the vacuum end and the vacuum gauge end is basically the same, with the vacuum gauge installation position becoming the vacuum outlet, and the other components are the same.

[0019] The beneficial effects of the present invention are as follows: the problem that the pipes of the currently used vacuum pumping devices are easily clogged is solved, a quick disassembly and installation function is added, a cylinder is used to control the movement of the piston column, and dust accumulation residues on the inner wall of the vacuum cylinder are cleaned to ensure the normal use of the vacuum pumping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural cross-sectional view of the present invention.

[0021] Figure 2 It is a structural schematic diagram of a first grooved piston column or a second grooved piston column. DETAILED DESCRIPTION

[0022] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0023] Embodiment 1:

[0024] like Figure 1 As shown, an extruder vacuum powder cleaning device comprises a vacuum gauge end and a vacuum pumping end, wherein the vacuum gauge end and the vacuum pumping end are connected to the inner cavity of the barrel of the extruder die head by direct insertion;

[0025] The vacuum gauge end comprises a first vacuum cylinder 11 and a first cylinder 12. One end of the first vacuum cylinder 11 is provided with a first sealing gasket 13 for sealing. The other end of the first vacuum cylinder 11 is inserted into the barrel of the extruder die head and communicates with the inner cavity of the barrel. A first grooved piston column 14 is provided in the first vacuum cylinder 11. The extended shaft of the first cylinder 12 passes through the first sealing gasket 13 and is fixedly connected to the first grooved piston column 14 to push it to move radially. A vacuum gauge 15 is provided on the side of the first vacuum cylinder 11.

[0026] The vacuum end includes a second vacuum cylinder 21 and a second cylinder 22. One end of the second vacuum cylinder 21 is provided with a second sealing gasket 23 for sealing. The other end of the second vacuum cylinder 21 is inserted into the barrel of the extruder die head and communicates with the inner cavity of the barrel. A second grooved piston column 24 is provided in the second vacuum cylinder 21. The extended shaft of the second cylinder 22 passes through the second sealing gasket 23 and is fixedly connected to the second grooved piston column 24 to push it to move radially. A vacuum outlet 25 is provided on the side of the second vacuum cylinder 21, and the vacuum outlet 25 is connected to a vacuum pump with a pipeline.

[0027] The vacuum gauge end and the vacuum pumping end are interference fit with the barrel, and there is sealing material on the barrel hole wall. The vacuum gauge end and the vacuum pumping end only need to be inserted into the installation hole of the barrel to achieve a sealing effect, so as to achieve quick disassembly and installation. At the same time, the first cylinder 12 is used at the vacuum gauge end to drive the first grooved piston column 14 to make radial movement in the first vacuum cylinder 11, and the second cylinder 22 is used at the vacuum pumping end to drive the second grooved piston column 24 to make radial movement in the second vacuum cylinder 21, and the cylinder pushes the piston column to move to achieve the effect of cleaning the inner walls of the first and second vacuum cylinders. At the vacuum gauge end, the role of the vacuum gauge is to measure the real-time vacuum pressure value in the barrel, and the cylinder pushes the piston column to perform the vacuum gauge end vacuum cylinder powder cleaning operation; at the vacuum pumping end, the vacuum outlet 25 is connected to the vacuum pump with a pipeline, and the vacuum pump is started to extract the gas and powdery substances generated in the barrel, and the cylinder pushes the piston column to perform powder cleaning to ensure the normal operation of the vacuum pumping device.

[0028] Among them, the first sealing gasket 13 and the second sealing gasket 23 have the same structure, and the material they use is a high-strength wear-resistant material, which has heat insulation and wear-resistant and corrosion-resistant effects, and ensures that the first and second vacuum cylinders maintain a vacuum state when the first and second cylinders are active.

[0029] In this embodiment, a first heat-insulating heightening column 16 is provided between the first cylinder 12 and the first sealing gasket 13, a first cylinder mounting flange block 17 is provided on the first heat-insulating heightening column 16 for mounting the first cylinder 12, the first cylinder 12 is fixed to the first cylinder mounting flange block 17 by bolts, and the first cylinder mounting flange block 17 is fixed to the first sealing gasket 13 by the first heat-insulating heightening column 16. The first heat-insulating heightening column 16 is added, and the material of the part is bakelite, which effectively performs heat insulation.

[0030] In this embodiment, a first flange gasket 18 is provided at the bottom of the first cylinder mounting flange block 17, which has heat insulation and wear and corrosion resistance effects, and further enhances the heat insulation effect.

[0031] In this embodiment, the first cylinder mounting flange block 17 is provided with a first sealing ring 19 and a first sealing ring baffle 10 for fixing the first sealing ring 19 at the position where the extended shaft of the first cylinder 12 passes through. The first sealing ring 19 is provided between the extended shaft of the first cylinder 12 and the first cylinder mounting flange block 17, which can effectively prevent the grease leaked during the use of the first cylinder 12 from entering the first vacuum cylinder 11, and also prevent the fine dust from the first vacuum cylinder 11 from entering the cavity of the first cylinder 12.

[0032] In this embodiment, a second heat-insulating heightening column 26 is provided between the second cylinder 22 and the second sealing gasket 23, a second cylinder mounting flange block 27 is provided on the second heat-insulating heightening column 26 for mounting the second cylinder 22, the second cylinder 22 is fixed to the second cylinder mounting flange block 27 by bolts, and the second cylinder mounting flange block 27 is fixed to the second sealing gasket 23 by the second heat-insulating heightening column 26. The second heat-insulating heightening column 26 is added, and the material of the part is bakelite, which effectively insulates.

[0033] In this embodiment, a second flange gasket 28 is provided at the bottom of the second cylinder mounting flange block 27, which has heat insulation and wear and corrosion resistance effects, further enhancing the heat insulation effect.

[0034] In this embodiment, the second cylinder mounting flange block 27 is provided with a second sealing ring 29 and a second sealing ring baffle 20 for fixing the second sealing ring 29 at the position where the extended shaft of the second cylinder 22 passes through. The second sealing ring 29 is provided between the extended shaft of the second cylinder 22 and the second cylinder mounting flange block 27, which can effectively prevent the grease leaked during the use of the second cylinder 22 from entering the second vacuum cylinder 21, and also prevent the fine dust from the second vacuum cylinder 21 from entering the cavity of the second cylinder 22.

[0035] like Figure 2 As shown, the first grooved piston column 14 and the second grooved piston column 24 have the same structure, and grooves are evenly arranged around the cylinder. The piston column is designed with grooves to ensure that the vacuum degree can be accurately measured when the piston column stops moving or moves radially, and the cylinder pushes the piston column to move to achieve the effect of cleaning the inner wall of the vacuum cylinder.

[0036] Furthermore, the first vacuum cylinder 11 is connected to the vacuum gauge 15, and the installation position of the vacuum gauge 15 is aligned with the groove of the first grooved piston rod 14. It is ensured that the vacuum gauge 15 can accurately measure the vacuum degree when the first grooved piston rod 14 stops moving or moves radially.

[0037] Furthermore, the vacuum outlet 25 is aligned with the groove of the second grooved piston rod 24. This ensures that the vacuum pump can extract the gas and powdery substances generated in the barrel when the second grooved piston rod 24 stops moving or moves radially, without affecting the normal operation of the vacuum device.

[0038] The structures of the vacuum end and the vacuum gauge end are substantially the same, except that the installation position of the vacuum gauge 15 is changed to the vacuum outlet 25, and the other components are the same.

[0039] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An extruder vacuum powder cleaning device, characterized in that: It includes a vacuum gauge end and a vacuum pumping end, and the vacuum gauge end and the vacuum pumping end are connected to the inner cavity of the barrel of the extruder die head by direct insertion; The vacuum gauge end comprises a first vacuum tube (11) and a first air cylinder (12); one end of the first vacuum tube (11) is provided with a first sealing gasket (13) for sealing; the other end of the first vacuum tube (11) is inserted into the barrel of the extruder die head and communicates with the inner cavity of the barrel; a first grooved piston column (14) is provided in the first vacuum tube (11); an extended shaft of the first air cylinder (12) passes through the first sealing gasket (13) and is fixedly connected to the first grooved piston column (14) to push it to move radially; a vacuum gauge (15) is provided on the side of the first vacuum tube (11); The vacuum end comprises a second vacuum cylinder (21) and a second air cylinder (22). One end of the second vacuum cylinder (21) is provided with a second sealing gasket (23) for sealing. The other end of the second vacuum cylinder (21) is inserted into the barrel of the extruder die head and communicates with the inner cavity of the barrel. A second grooved piston column (24) is provided in the second vacuum cylinder (21). The extended shaft of the second air cylinder (22) passes through the second sealing gasket (23) and is fixedly connected to the second grooved piston column (24) to push it to move radially. A vacuum outlet (25) is provided on the side of the second vacuum cylinder (21). The vacuum outlet (25) is connected to a vacuum pump by a pipeline. The first grooved piston column (14) and the second grooved piston column (24) have the same structure, and grooves are evenly arranged around the column body. The first vacuum cylinder (11) is connected to the vacuum gauge (15), and the installation position of the vacuum gauge (15) is aligned with the groove of the first grooved piston column (14), and the position of the vacuum outlet (25) is aligned with the groove of the second grooved piston column (24).

2. The extruder vacuum powder cleaning device according to claim 1, characterized in that: A first heat-insulating heightening column (16) is provided between the first cylinder (12) and the first sealing gasket (13); a first cylinder mounting flange block (17) is provided on the first heat-insulating heightening column (16) for mounting the first cylinder (12); the first cylinder (12) is fixed to the first cylinder mounting flange block (17) by bolts; and the first cylinder mounting flange block (17) is fixed to the first sealing gasket (13) by the first heat-insulating heightening column (16).

3. The extruder vacuum powder cleaning device according to claim 2, characterized in that: A first flange gasket (18) is provided at the bottom of the first cylinder mounting flange block (17).

4. The extruder vacuum powder cleaning device according to claim 2, characterized in that: The first cylinder mounting flange block (17) is provided with a first sealing ring (19) and a first sealing ring baffle (10) for fixing the first sealing ring (19) at the position where the extended shaft of the first cylinder (12) passes through.

5. The extruder vacuum powder cleaning device according to claim 1, characterized in that: A second heat-insulating heightening column (26) is provided between the second cylinder (22) and the second sealing gasket (23); a second cylinder mounting flange block (27) is provided on the second heat-insulating heightening column (26) for mounting the second cylinder (22); the second cylinder (22) is fixed to the second cylinder mounting flange block (27) by bolts; and the second cylinder mounting flange block (27) is fixed to the second sealing gasket (23) by the second heat-insulating heightening column (26).

6. The extruder vacuum powder cleaning device according to claim 5, characterized in that: A second flange gasket (28) is provided at the bottom of the second cylinder mounting flange block (27).

7. The extruder vacuum powder cleaning device according to claim 5, characterized in that: The second cylinder mounting flange block (27) is provided with a second sealing ring (29) and a second sealing ring baffle (20) for fixing the second sealing ring (29) at the position where the extended shaft of the second cylinder (22) passes through.

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