Dust collection device for PVC pipe production line

Abstract

The utility model discloses a dust suction device for a PVC (polyvinyl chloride) pipe production line, which belongs to the technical field of PVC pipe production and comprises an air duct, a mounting frame is mounted at the bottom of the air duct through bolts, an exhaust pipe is fixed at the bottom of the mounting frame, the top end of the exhaust pipe is communicated with the inside of the air duct, and a negative pressure fan is mounted at one end, close to the air duct, of the inside of the exhaust pipe. A rotary disc is installed at the end, close to the negative pressure fan, of the bottom of the exhaust pipe and rotationally installed on the exhaust pipe. Due to the arrangement of the rotating disc at the bottom of the exhaust pipe, the rotating disc is rotationally connected with the bottom of the exhaust pipe, and the multiple sets of limiting grooves are formed in the rotating disc, in the using process of the device, the filter element is more convenient to replace and clean, and the practicability is higher; and dust falling on the wall of the telescopic pipe can be blocked, dust accumulated in the using process is prevented from falling out of the device, and the dust removal effect is ensured.

Description

Technical Field

[0001] The utility model relates to a dust suction device, in particular to a dust suction device for a PVC pipe production line, belonging to the technical field of PVC pipe production. Background Art

[0002] PVC is mainly composed of polyvinyl chloride, and other ingredients are added to enhance its heat resistance, toughness and ductility. The top layer of this surface film is paint, the main component in the middle is polyvinyl chloride, and the bottom layer is back-coated adhesive. It is a synthetic material that is popular and widely used in the world today. After the extrusion of PVC pipes, it has a strong pungent odor and needs to be vacuumed to prevent dust from sticking.

[0003] However, it is inconvenient to clean and replace the internal filter element of the existing dust suction device during use. In addition, the dust suction pipe is mostly located on the top of the PVC forming device. After the pipe is hit, the dust accumulated inside is easy to fall off. In addition, the traditional device is inconvenient to adjust the height of the dust suction port. Therefore, the utility model proposes a dust suction device for a PVC pipe production line to solve the problems existing in the prior art. Utility Model Content

[0004] The main purpose of the utility model is to provide a dust suction device for a PVC pipe production line to solve the problem of inconvenience in cleaning and replacing filter elements in the prior art.

[0005] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0006] A dust suction device for a PVC pipe production line comprises an air duct, a mounting frame is installed at the bottom of the air duct by bolts, an exhaust pipe is fixed at the bottom of the mounting frame, the top of the exhaust pipe is communicated with the interior of the air duct, a negative pressure fan is installed at one end of the exhaust pipe close to the air duct, a turntable is installed at one end of the bottom of the exhaust pipe close to the negative pressure fan, the turntable is rotatably installed on the exhaust pipe, limiting grooves are symmetrically provided on the turntable, a filter element is provided inside the limiting groove, a telescopic tube is provided at the bottom end of the exhaust pipe, and a dust hood is installed at the bottom end of the telescopic tube, a partition is provided at the middle position inside the dust hood, and a lifting mechanism is provided between the exhaust pipe and the dust hood.

[0007] Preferably: the lifting mechanism includes a fixed sleeve, a positioning bolt and a pull rope, the fixed sleeve is fixed to the outside of the exhaust pipe, a pull rope is fixed to the top of the dust hood, the top of the pull rope passes through the fixed sleeve, and the outside of the fixed sleeve is threadedly installed with a positioning bolt.

[0008] Preferably, the outer side of the turntable is evenly provided with anti-slip grooves.

[0009] Preferably, the partition is circular in shape, and the diameter of the partition is larger than the inner diameter of the telescopic tube.

[0010] Preferably, four groups of lifting mechanisms are provided, and the distances between adjacent lifting mechanisms are the same.

[0011] Preferably, the top and bottom of the exhaust pipe are both arc-shaped.

[0012] The beneficial effects of the utility model are:

[0013] The utility model provides a dust suction device for a PVC pipe production line. The arrangement of a turntable at the bottom of the exhaust pipe is rotatably connected to the bottom of the exhaust pipe through the turntable, and multiple groups of limit grooves are arranged on the turntable, so that the device is more convenient to replace and clean the filter element during use, and has higher practicality. The arrangement of a bottom partition in the dust hood can block dust falling from the telescopic pipe wall, preventing accumulated dust from falling to the outside of the device during use, thereby ensuring the dust removal effect. The arrangement of a lifting mechanism composed of a fixed sleeve, a positioning bolt, and a pull rope between the dust hood and the exhaust pipe makes it more convenient to adjust the height of the dust hood, and has higher practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front cross-sectional view of the utility model;

[0015] Figure 2 It is the front view of the utility model;

[0016] Figure 3 It is a partial structural diagram of the utility model.

[0017] In the figure: 1. air duct; 2. mounting frame; 3. exhaust pipe; 4. negative pressure fan; 5. turntable; 6. limit slot; 7. filter element; 8. telescopic tube; 9. dust hood; 10. partition; 11. lifting mechanism; 12. fixing sleeve; 13. positioning bolt; 14. pull rope. DETAILED DESCRIPTION

[0018] In order to make the technical solution of the utility model more clear and specific to those skilled in the art, the utility model is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the utility model are not limited thereto.

[0019] like Figure 1-Figure 3As shown, the present embodiment provides a dust collection device for a PVC pipe production line, comprising an air duct 1, a mounting frame 2 is installed at the bottom of the air duct 1 by bolts, an exhaust pipe 3 is fixed at the bottom of the mounting frame 2, the top of the exhaust pipe 3 is communicated with the interior of the air duct 1, a negative pressure fan 4 is installed at one end of the exhaust pipe 3 close to the air duct 1, a turntable 5 is installed at one end of the bottom of the exhaust pipe 3 close to the negative pressure fan 4, the turntable 5 is rotatably installed on the exhaust pipe 3, limiting grooves 6 are symmetrically provided on the turntable 5, a filter element 7 is arranged inside the limiting groove 6, a telescopic tube 8 is arranged at the bottom end of the exhaust pipe 3, and a dust hood 9 is installed at the bottom end of the telescopic tube 8, a partition 10 is arranged at the middle position inside the dust hood 9, and a lifting mechanism 11 is arranged between the exhaust pipe 3 and the dust hood 9.

[0020] In this embodiment, if Figure 3 As shown, the lifting mechanism 11 includes a fixed sleeve 12, a positioning bolt 13 and a pull rope 14. The fixed sleeve 12 is fixed to the outside of the exhaust pipe 3, and the pull rope 14 is fixed to the top of the dust hood 9. The top of the pull rope 14 passes through the fixed sleeve 12, and the outside of the fixed sleeve 12 is threadedly installed with the positioning bolt 13. When the height of the dust hood 9 needs to be adjusted, the positioning bolt 13 is loosened first, and then the pull rope 14 is pulled up or down to limit the height of the dust hood 9, and then the positioning bolt 13 is tightened to fix the position of the pull rope 14 to fix the height of the dust hood 9.

[0021] In this embodiment, if Figure 2 As shown, the outer side of the turntable 5 is evenly provided with anti-skid grooves, which facilitates the rotation of the turntable 5 and the replacement and installation of the filter element 7.

[0022] In this embodiment, if Figure 1 As shown, the partition 10 is circular in shape, and the diameter of the partition 10 is larger than the inner diameter of the telescopic tube 8, thereby ensuring the dust blocking effect.

[0023] In this embodiment, if Figure 2 As shown, four groups of lifting mechanisms 11 are provided, and the distances between adjacent lifting mechanisms 11 are the same, thereby improving the stability of the positioning of the dust hood 9.

[0024] In this embodiment, if Figure 1 As shown, the top and bottom of the exhaust pipe 3 are both arc-shaped, which reduces the wind resistance inside the exhaust pipe 3 during vacuuming and avoids dust accumulation.

[0025] like Figure 1-Figure 3 As shown, the working process of the dust collection device for a PVC pipe production line provided in this embodiment is as follows:

[0026] Step 1: During use, fix the mounting frame 2 on the air duct 1, connect the top of the exhaust pipe 3 with the inside of the air duct 1, then loosen the positioning bolt 13, pull up or move down the pull rope 14 to limit the height of the dust hood 9, and then tighten the positioning bolt 13 to fix the position of the pull rope 14 to fix the height of the dust hood 9;

[0027] Step 2: During the dust collection process, the negative pressure fan 4 is started, and negative pressure is formed inside the exhaust pipe 3. The outside air enters the inside of the telescopic pipe 8 from the gap between the partition 10 and the dust collection cover 9, and then is filtered by the filter element 7 and then enters the inside of the air duct 1;

[0028] Step 3: When the filter element 7 needs to be replaced after being used for a long time, turn the turntable 5, replace the unused filter element 7 at the bottom with the filter element 7 full of dust, and then clean the filter element 7.

[0029] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A dust collecting device for a PVC pipe production line, characterized in that: The invention comprises an air duct (1), a mounting frame (2) being mounted on the bottom of the air duct (1) by means of bolts, an exhaust pipe (3) being fixed on the bottom of the mounting frame (2), the top end of the exhaust pipe (3) being in communication with the interior of the air duct (1), a negative pressure fan (4) being mounted on one end of the exhaust pipe (3) close to the air duct (1), a turntable (5) being mounted on the end of the bottom of the exhaust pipe (3) close to the negative pressure fan (4), the turntable (5) being rotatably mounted on the exhaust pipe (3), limiting grooves (6) being symmetrically provided on the turntable (5), a filter element (7) being arranged inside the limiting grooves (6), a telescopic pipe (8) being arranged on the bottom end of the exhaust pipe (3), a dust hood (9) being arranged on the bottom end of the telescopic pipe (8), a partition plate (10) being arranged at a middle position inside the dust hood (9), and a lifting mechanism (11) being arranged between the exhaust pipe (3) and the dust hood (9).

2. A dust collecting device for a PVC pipe production line according to claim 1, characterized in that: The lifting mechanism (11) comprises a fixed sleeve (12), a positioning bolt (13) and a pull rope (14); the fixed sleeve (12) is fixed to the outside of the exhaust pipe (3); the pull rope (14) is fixed to the top of the dust hood (9); the top of the pull rope (14) passes through the fixed sleeve (12); and the positioning bolt (13) is threadedly installed on the outside of the fixed sleeve (12).

3. A dust collecting device for a PVC pipe production line according to claim 1, characterized in that: The outer side of the rotating disk (5) is evenly provided with anti-slip grooves.

4. A dust collecting device for a PVC pipe production line according to claim 1, characterized in that: The partition (10) is circular in shape, and the diameter of the partition (10) is greater than the inner diameter of the telescopic tube (8).

5. A dust collecting device for a PVC pipe production line according to claim 1 or 2, characterized in that: Four groups of lifting mechanisms (11) are provided, and the distances between adjacent lifting mechanisms (11) are the same.

6. A dust collecting device for a PVC pipe production line according to claim 1, characterized in that: The top and bottom of the exhaust pipe (3) are both arc-shaped.

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