Movable waste gas collecting device special for plastic extruding machine

Abstract

The utility model relates to the technical field of waste gas treatment, and discloses a special movable waste gas collecting device for a plastic extruding machine, which comprises opposite and parallel ground rail bars, parallel vertical rods are arranged on the surfaces of the ground rail bars, and a synchronous lifting adjusting assembly extending into the vertical rods is arranged between the side walls of the same ground rail bar. Top strips which are arranged in parallel are fixed between the tops of the synchronous lifting adjusting assemblies; a sliding groove with an L-shaped section is formed between the side wall and the surface of the ground rail bar, a limiting sliding block is arranged in the sliding groove in a sliding mode, the limiting sliding block is fixed to the bottom of the ground rail bar, and a horizontal electric sliding rail is installed on the side wall of the ground rail bar. On the premise that the waste gas collecting effect is guaranteed, energy consumption is reduced by reducing the power of the frequency conversion fan, the whole waste gas collecting device ascends, a large repairing space can be reserved, disassembly is not needed, and maintenance and cleaning operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a mobile waste gas collecting device dedicated to an extruder. Background Art

[0002] An extruder is a device used to process plastics. It forms products of various shapes by extruding heated plastics through a mold. It plays a key role in the production of plastic products. Common applications include the production of pipes, plates, films, profiles, etc. Extruders are widely used in cable production. Since an insulating layer is required on the outside of wires and cables, an extruder is used to melt the raw materials and extrude them onto the core of the wires and cables to form the insulating layer on the outside of the wires and cables. During the operation of the extruder, a large amount of waste gas is generated in the high temperature state of the raw materials for the insulation layer of the wires and cables. In order to prevent harmful waste gas from escaping into the production workshop and causing adverse effects on the health of employees after inhalation, a waste gas collection and treatment device is required to collect and treat the waste gas.

[0003] Application No. CN202321544553.4 discloses an extruder exhaust gas collection device, including a semi-enclosed isolation chamber covered outside the extruder, which has the advantages of good exhaust gas collection effect, no exhaust gas overflow, and the exhaust gas collection device works synchronously with the extruder, ensuring environmental protection standards and avoiding waste of resources.

[0004] During actual use of the device, it was found that its gas collection height could not be adjusted. When the extruder outlet was blocked and needed to be cleaned and repaired, the exhaust gas collection device needed to be removed, which made the outlet cleaning operation inconvenient. Moreover, when the extruder was working, the gas collection height could not be adjusted in time according to the working status of the extruder. The electric air valve operated at a fixed power and had high energy consumption. Therefore, we proposed a mobile exhaust gas collection device dedicated to the extruder. Utility Model Content

[0005] The utility model aims to provide a mobile waste gas collection device for an extruder to solve the problems in the above background technology that the gas collection height cannot be adjusted and the discharge port cleaning operation is inconvenient.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a mobile exhaust gas collection device for an extruder, comprising:

[0007] Floor rails are arranged oppositely and in parallel, and vertical poles are arranged on the surface of the floor rails in parallel. Synchronous lifting and adjusting components extending to the inside of the vertical poles are installed between the side walls of the same floor rail, and parallel top bars are fixed between the tops of the synchronous lifting and adjusting components;

[0008] A slide groove with an L-shaped cross section is constructed between the side wall and the surface of the floor rail, and a limit slider is slidably arranged in the slide groove, and the limit slider is fixed to the bottom of the floor rail. A horizontal electric slide rail is installed on the side wall of the floor rail, and the guide slider of the horizontal electric slide rail is fitted and connected with the limit slider;

[0009] A collecting frame is fixed between the side walls of the top strips, wherein a dust collecting assembly is arranged inside the collecting frame, and a variable frequency fan is fitted on the surface of the collecting frame, wherein an air outlet of the variable frequency fan is connected to an air guide duct.

[0010] Preferably, the synchronous lifting assembly includes a hollow frame fixed between the side walls of the uprights, a synchronous motor is installed on the surface of the hollow frame, and a linkage shaft is arranged inside the hollow frame, the output shaft of the synchronous motor is transmission connected with the linkage shaft through a bevel gear set, the end of the linkage shaft extends to the interior of the upright, and the end of the linkage shaft is transmission connected with a screw rod rotatably arranged inside the upright through a bevel gear set, the outer periphery of the screw rod is threadedly connected with a lifting rod that can slide in contact with the inner wall of the upright, and a limit block is installed in contact with the inner wall of the upright.

[0011] Preferably, the dust collection assembly includes a filter screen symmetrically arranged in the collection frame, an air inlet symmetrically constructed at the bottom of the collection frame, and a symmetrically arranged dust collection frame is also fitted on the bottom of the collection frame.

[0012] Preferably, a rectangular notch is formed on the surface of the limit sliding block, and a ball bearing is installed in the rectangular notch.

[0013] Preferably, reinforcement rods are installed between the side walls of the vertical poles, and a control panel electrically connected to the variable frequency fan is fitted on the side wall of one of the vertical poles.

[0014] Preferably, the surface of the floor rail is structured with a straight through groove whose bottom is connected to the slide groove.

[0015] Preferably, transparent curtains of varying lengths are bonded to the bottom surface of the top strip.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model is provided with a synchronous lifting component, and when the extruder is working, the height can be adjusted according to the production speed of the extruder. The power of the variable frequency fan can be reduced while ensuring the exhaust gas collection effect through the gas collection height adjustment, thereby reducing energy consumption. When the extruder discharge port is cleaned, the exhaust gas collection device can be raised as a whole to leave a larger repair space without disassembly, thereby facilitating maintenance and cleaning operations.

[0018] 2. The utility model is provided with a dust collection component, which can filter the extracted exhaust gas when collecting and guiding the exhaust gas to the processing equipment. When the dust on the filter is shaken, the dust can fall into the dust collection frame below, which is convenient for collecting and dumping the dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the vertical pole and the top bar of the utility model;

[0021] Figure 3 It is a cross-sectional view of the vertical pole of the utility model;

[0022] Figure 4 It is a cross-sectional view of the collection frame of the utility model.

[0023] In the figure: 1. Ground rail; 2. Horizontal electric slide rail; 3. Limit slider; 4. Vertical pole; 5. Limit block; 6. Screw; 7. Lifting rod; 8. Linkage shaft; 9. Hollow frame; 10. Synchronous motor; 11. Reinforcement rod; 12. Top bar; 13. Collection frame; 14. Variable frequency fan; 15. Air duct; 16. Filter; 17. Air inlet; 18. Dust collection frame; 19. Transparent curtain; 20. Control panel. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example

[0026] See also Figure 1-Figure 4The mobile exhaust gas collection device for an extruder shown in the figure comprises ground rails 1 arranged relatively and in parallel, the ground rails 1 are fixed by anchor bolts or limit bolts and other components, so that the ground rails 1 are located at the same height on both sides of the extruder and are in a horizontal state, and the surfaces of the ground rails 1 are provided with parallel vertical poles 4, and synchronous lifting and adjusting components extending to the inside of the vertical poles 4 are installed between the side walls of the same ground rail 1, and the synchronous lifting and adjusting components are used to drive the top bar 12 to move in the vertical direction, change the height of the top bar 12, and synchronously lift and lower the top bar 12. A parallel top bar 12 is fixed between the tops of the adjustment components, a slide groove with an L-shaped cross section is constructed between the side wall and the surface of the floor rail 1, and a limit slider 3 is slidably arranged in the slide groove, and a straight groove is constructed on the surface of the floor rail 1, the bottom of which is connected to the slide groove, and the limit slider 3 is fixed to the bottom of the floor rail 1. A horizontal electric slide rail 2 is installed on the side wall of the floor rail 1, and the guide slider of the horizontal electric slide rail 2 is fitted and connected with the limit slider 3. Under the action of the horizontal electric slide rail 2, its guide slider can drive the limit slider 3 to move, thereby changing the vertical rod 4. The exhaust gas collecting device is moved to the side of the extruder in a horizontal position, and a collecting frame 13 is fixed between the side walls of the top strip 12. A dust collecting assembly is arranged inside the collecting frame 13, and a variable frequency fan 14 is fitted on the surface of the collecting frame 13. An air duct 15 is connected to the air outlet of the variable frequency fan 14. The variable frequency fan 14 can adjust the working power through the circuit board to change the speed of the variable frequency fan 14. A rectangular notch is arranged on the surface of the limit slider 3, and a ball bearing is installed in the rectangular notch. Under the action of the ball bearing, the limit slider 3 can be reduced when moving. Friction force is provided so that the horizontal electric slide rail 2 can drive the limit slider 3 to move smoothly. Reinforcement rods 11 are installed between the side walls of the vertical poles 4, and a control panel 20 electrically connected to the variable frequency fan 14 is installed on the side wall of one of the vertical poles 4. The power of the variable frequency fan 14 can be adjusted in time through the control panel 20. Transparent curtains 19 of different lengths are bonded to the bottom surface of the top strip 12. The transparent curtains 19 can play a shielding and protective function and prevent the exhaust gas at the discharge port of the extruder from quickly escaping to a farther area of ​​the extruder, so as to help improve the exhaust gas collection efficiency.

[0027] In this embodiment, the synchronous lifting assembly includes a hollow frame 9 fixed between the side walls of the uprights 4, a synchronous motor 10 is installed on the surface of the hollow frame 9, and a linkage shaft 8 is arranged inside the hollow frame 9, the output shaft of the synchronous motor 10 is connected to the linkage shaft 8 through a bevel gear set, the end of the linkage shaft 8 extends to the inside of the upright 4, and the end of the linkage shaft 8 is connected to the screw 6 rotatably arranged inside the upright 4 through a bevel gear set, the output shaft of the synchronous motor 10 controls the rotation of the linkage rod through the bevel gear set, and the two ends of the linkage rod drive the screw 6 in the upright 4 to rotate through the bevel gear set, thereby keeping the lifting rod 7 on the inner side of the upright 4 on the same ground rail 1 rising or lowering at the same time, the outer periphery of the screw 6 is threadedly connected to the lifting rod 7 that can slide and fit against the inner wall of the upright 4, and the inner wall of the upright 4 is fitted with a limit block 5, and the limit block 5 is used to prevent the lifting rod 7 from colliding with the bevel gear fixed on the outer periphery of the screw 6 when it moves downward excessively.

[0028] In this embodiment, the dust collection assembly includes a filter 16 symmetrically arranged in the collection frame 13, an air inlet 17 symmetrically constructed at the bottom of the collection frame 13, and a symmetrically arranged dust collecting frame 18 is also installed at the bottom of the collection frame 13. The dust and other impurities in the exhaust gas can be filtered through the filter 16, and the dust and other impurities can be regularly shaken off and fall into the dust collecting frame 18 below, and then the dust can be poured out.

[0029] It should be noted that the utility model is a mobile exhaust gas collection device for extruders. When in use, the top bar 12 is pre-adjusted to the highest position, the horizontal electric slide rail 2 is started to drive the limit slide block 3 to move along the slide groove through the guide rail slider, and the vertical rod 4 is moved to both sides of the extruder discharge port, and then the synchronous lifting component is started according to the height of the corresponding extruder discharge port, and the output shaft of the synchronous motor 10 drives the screw rod 6 inside the vertical rod 4 to rotate through the linkage shaft 8, and the screw 6 and the lifting rod 7 rotate relative to each other to make the lifting rod 7 slide up and down in the same direction, thereby changing the top bar 12 and the collection frame 13, the variable frequency fan The height of 14 and the transparent curtain 19 makes the transparent curtain 19 located on both sides of the extruder discharge port. When collecting the waste gas, the power of the variable frequency fan 14 is adjusted according to the production speed of the extruder. When more waste gas is generated, the power of the variable frequency fan 14 is appropriately increased to ensure that the waste gas can be collected and discharged in time. When less waste gas is generated, the variable frequency fan 14 can be operated at a lower power to reduce energy loss and save energy. When extracting and collecting the waste gas, the waste gas passes through the air inlet 17 and then through the filter 16 and is transported to the air duct 15 by the variable frequency fan 14, and then introduced into the waste gas treatment equipment through the ventilation pipe.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mobile exhaust gas collection device for an extruder, characterized in that: include: Floor rails (1) are arranged opposite to and in parallel, the surfaces of the floor rails (1) are provided with vertical poles (4) arranged in parallel, and synchronous lifting and adjusting components extending to the interior of the vertical poles (4) are installed between the side walls of the same floor rail (1), and parallel top bars (12) are fixed between the tops of the synchronous lifting and adjusting components; A slide groove with an L-shaped cross section is constructed between the side wall and the surface of the floor rail (1), and a limit slider (3) is slidably arranged in the slide groove, and the limit slider (3) is fixed to the bottom of the floor rail (1). A horizontal electric slide rail (2) is installed on the side wall of the floor rail (1), and the guide slider of the horizontal electric slide rail (2) is fitted and connected with the limit slider (3); A collection frame (13) is fixed between the side walls of the top strip (12), wherein a dust collection assembly is arranged inside the collection frame (13), and a variable frequency fan (14) is fitted on the surface of the collection frame (13), wherein an air outlet of the variable frequency fan (14) is connected to an air guide pipe (15).

2. The mobile exhaust gas collection device for an extruder according to claim 1, characterized in that: The synchronous lifting assembly comprises a hollow frame (9) fixed between the side walls of the vertical pole (4), a synchronous motor (10) is installed on the surface of the hollow frame (9), and a linkage shaft (8) is arranged inside the hollow frame (9), the output shaft of the synchronous motor (10) is transmission-connected to the linkage shaft (8) through a bevel gear set, the end of the linkage shaft (8) extends into the interior of the vertical pole (4), and the end of the linkage shaft (8) is transmission-connected to a screw rod (6) rotatably arranged inside the vertical pole (4) through a bevel gear set, the outer circumference of the screw rod (6) is threadedly connected to a lifting rod (7) that can slide and fit against the inner wall of the vertical pole (4), and a limit block (5) is installed in a fit with the inner wall of the vertical pole (4).

3. The mobile exhaust gas collection device for an extruder according to claim 1, characterized in that: The dust collection assembly comprises a filter screen (16) symmetrically arranged in a collection frame (13), an air inlet (17) symmetrically constructed at the bottom of the collection frame (13), and a symmetrically arranged dust collection frame (18) is also fitted on the bottom of the collection frame (13).

4. A mobile exhaust gas collection device for an extruder according to claim 3, characterized in that: The surface of the limiting sliding block (3) is provided with a rectangular notch, and a ball bearing is installed in the rectangular notch.

5. The mobile exhaust gas collection device for an extruder according to claim 1, characterized in that: A reinforcing rod (11) is installed between the side walls of the vertical poles (4), and a control panel (20) electrically connected to the variable frequency fan (14) is installed in close contact with the side wall of one of the vertical poles (4).

6. The mobile exhaust gas collection device for an extruder according to claim 3, characterized in that: The surface of the floor rail (1) is provided with a straight groove whose bottom is connected to the slide groove.

7. The mobile exhaust gas collection device for an extruder according to claim 1, characterized in that: The bottom surface of the top strip (12) is bonded with transparent curtains (19) of varying lengths.

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