Waste gas filter of die-casting machine

Abstract

The utility model discloses a die-casting machine waste gas filter, and particularly relates to the field of die-casting machine waste gas filtration, the die-casting machine waste gas filter comprises a shell, a spraying area, a drying area and a filtering area are sequentially arranged in the shell from left to right, a filter screen and an activated carbon layer are inserted in the filtering area, and a replacement mechanism is arranged at the top end of the filtering area. The replacing mechanism comprises a connecting rod, a mounting box, a rotating rod, a gear, a rack, a reset spring and a sliding rail, the rotating rod, the gear, the rack, the reset spring, the movable rod and the sliding rail are used for controlling the clamping rod to move, the clamping rod is far away from the connecting rod, and the filter screen and the activated carbon layer can be taken out for replacement through the connecting rod; the filter screen and the activated carbon layer are fixed, so that the filter screen and the activated carbon layer are convenient to disassemble and assemble, the filter screen is convenient to maintain and replace in time, the activated carbon layer is convenient to replace, and the situation that the filter screen is damaged or the activated carbon layer is saturated in adsorption, so that the waste gas filtering effect of the die-casting machine is poor is avoided.

Description

Technical Field

[0001] The utility model relates to the field of waste gas filtration of die-casting machines, and more specifically, to a waste gas filter for die-casting machines. Background Technique

[0002] A die-casting machine is a machine used for pressure casting, including a hot chamber and a cold chamber. The latter is further divided into two types: vertical and horizontal. Under pressure, the die-casting machine injects molten metal into the mold for cooling and forming. After the mold is opened, solid metal castings can be obtained. It was initially used for die-casting type.

[0003] After retrieval, the existing patent (publication number: 202322205597.0) relates to a die-casting waste gas collection device, including an air suction device, an adsorption component, and a filtration component; the air suction device includes a front hose, an air suction cylinder, and a first exhaust fan. One end of the front hose is connected to the air suction cylinder, and the other end is connected to the first exhaust fan. The adsorption component includes an adsorption box, an electrostatic field, and an adsorber. The adsorption box is fixedly connected to the first exhaust fan. The number of electrostatic fields is multiple, and multiple electrostatic fields are detachably connected to the adsorption box respectively. The number of adsorbers is multiple, and multiple adsorbers are respectively connected to multiple electrostatic fields. The filtration component is connected to the adsorption box, which solves the problem that when using a die-casting machine waste gas collection and treatment device to collect the waste gas generated by die-casting, when the amount of waste gas generated is too large, the unthoroughly purified waste gas is discharged into the workshop, affecting the physical health of workers.

[0004] When a die-casting machine is in use, it usually generates waste gas, which is usually concentrated in the workshop and harms the environment and human body in the workshop. Therefore, a waste gas filter is needed; at the same time, the cited patent document filters the waste gas through spraying and a filter screen, but this device has some defects. The filter screen is fixedly connected to the filter tower, making it inconvenient for users to clean the filter screen, thereby reducing the waste gas filtration efficiency. At the same time, the impurities filtered by the filter screen will also remain inside the filter tower, making it inconvenient for people to clean.

[0005] Therefore, a waste gas filter for die-casting machines is proposed to solve the above problems. Summary of the Utility Model

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a waste gas filter for die-casting machines to solve the problems raised in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A waste gas filter for a die-casting machine, comprising a housing. Inside the housing, a spraying area, a drying area, and a filtering area are sequentially arranged from left to right. A filter screen and an activated carbon layer are inserted inside the filtering area. A replacement mechanism is provided at the top of the filtering area. The replacement mechanism includes a connecting rod, a mounting box, a rotating rod, a gear, a rack, a return spring, a slide rail, a movable rod, and a clamping rod;

[0008] The top ends of the filter screen and the activated carbon layer are fixedly connected to a connecting rod. The top of the housing and above the filtering area is fixedly connected to a mounting box. Inside the mounting box, a rotating rod is movably connected. A gear is fixedly connected to the outer wall of the rotating rod. The two sides of the gear are engaged with a rack. One side of the rack is fixedly connected to a return spring fixedly connected to the inner wall of the mounting box. The top of the housing and on the side of the mounting box is fixedly connected to a slide rail. The side of the rack away from the return spring is fixedly connected to a movable rod. One side of the movable rod is fixedly connected to a clamping rod.

[0009] Preferably, a collection mechanism is provided inside the housing and inside the filtering area. The collection mechanism includes a connecting plate, a sliding strip, a collection box, a pull rod, a pull block, a sliding block, a clamping block, a spring assembly, a card slot, a limiting rod, a cleaning brush, and a connecting rod.

[0010] Preferably, the bottom of the housing and below the filtering area is fixedly connected to a connecting plate. The side wall of the connecting plate is slidably connected to a sliding strip. The side wall of the sliding strip is fixedly connected to a collection box. Inside the connecting plate, a pull rod is movably connected. One side of the pull rod is fixedly connected to a pull block. The side of the pull rod away from the pull block is fixedly connected to a sliding block. One side of the sliding block is fixedly connected to a clamping block. The side of the sliding block away from the clamping block is fixedly connected to a spring assembly. A card slot is provided on the side wall of the collection box. The inner wall of the housing and inside the inner wall of the filtering area is fixedly connected to a limiting rod. The outer wall of the limiting rod is slidably connected to a cleaning brush. The top of the cleaning brush is fixedly connected to a connecting rod.

[0011] Preferably, an air inlet pipe is fixedly connected to the side wall of the housing. A blower is fixedly connected to the surface of the air inlet pipe. A flow guiding plate is fixedly connected to the bottom inner wall of the housing and inside the spraying area. A water guiding pipe penetrates through the back side of the spraying area. The bottom end of the water guiding pipe is fixedly connected to an atomizing nozzle. A heating plate is fixedly connected to the inner wall of the housing and inside the drying area. A drain pipe is fixedly connected to the side wall of the housing and below the air inlet pipe.

[0012] Preferably, there are two groups of racks, and the positions of the two groups of racks are symmetrically distributed about the center of the gear.

[0013] Preferably, the movable rod forms a sliding structure with the slide rail through a rack and a return spring, and the rotating rod is connected to the housing by a bearing.

[0014] Preferably, the side wall of the cleaning brush is attached to the side wall of the filter screen, and the slider forms a sliding structure with the connecting plate through a pull rod and a spring assembly.

[0015] Preferably, the top end of the guide plate is inclined, and an electronic valve is fixedly connected to the surface of the drain pipe.

[0016] The technical effects and advantages of the present utility model:

[0017] 1. Compared with the prior art, the device controls the movement of the card through the rotating rod, gear, rack, return spring, movable rod and slide rail. When the clamping rod moves away from the connecting rod, the filter screen and the activated carbon layer can be taken out through the connecting rod for replacement. When the clamping rod is inserted into the connecting rod, the filter screen and the activated carbon layer are fixed. Thus, it is convenient to disassemble and assemble the filter screen and the activated carbon layer, facilitating timely maintenance and replacement of the filter screen and replacement of the activated carbon layer, avoiding poor filtering effect of the waste gas of the die-casting machine caused by damage of the filter screen or saturation of the activated carbon layer.

[0018] 2. Compared with the prior art, the device sweeps the filter screen through the connecting rod, cleaning brush and limiting rod, sweeps the dust and drops it into the collection box. By controlling the movement of the card through the pull block, pull rod, slider, connecting plate and spring assembly, when the clamping block moves away from the clamping groove, the collection box can be taken out and the dust inside it can be poured out. When the clamping block is clamped into the clamping groove, the collection box can be fixed. Thus, it is convenient to collect and clean the dust in the waste gas, preventing the dust from accumulating inside the housing and reducing the filtering effect of the waste gas of the die-casting machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the present utility model.

[0020] Figure 2 It is a schematic cross-sectional view of the main body of the present utility model.

[0021] Figure 3 It is a schematic diagram of the replacement mechanism of the present utility model.

[0022] Figure 4 It is a schematic diagram of the collection mechanism of the present utility model.

[0023] The reference numerals are as follows: 1, outer shell; 2, spraying area; 3, drying area; 4, filtering area; 5, filter screen; 6, activated carbon layer; 7, replacement mechanism; 701, connecting rod; 702, installation box; 703, rotating rod; 704, gear; 705, rack; 706, return spring; 707, slide rail; 708, movable rod; 709, clamping rod; 8, collection mechanism; 801, connecting plate; 802, slide bar; 803, collection box; 804, pull rod; 805, pull block; 806, slider; 807, clamping block; 808, spring assembly; 809, clamping groove; 810, limiting rod; 811, cleaning brush; 812, connecting rod; 9, air inlet pipe; 10, fan; 11, guide plate; 12, water guide pipe; 13, atomizing nozzle; 14, heating plate; 15, drain pipe. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1

[0026] As shown in the attached Figures 1 to 3 A waste gas filter for a die-casting machine, including an outer shell 1. Inside the outer shell 1, a spraying area 2, a drying area 3, and a filtering area 4 are successively arranged from left to right. A filter screen 5 and an activated carbon layer 6 are inserted inside the filtering area 4. At the top of the filtering area 4, a replacement mechanism 7 is provided. The replacement mechanism 7 includes a connecting rod 701, an installation box 702, a rotating rod 703, a gear 704, a rack 705, a return spring 706, a slide rail 707, a movable rod 708, and a clamping rod 709;

[0027] The top ends of the filter screen 5 and the activated carbon layer 6 are fixedly connected to a connecting rod 701. At the top of the outer shell 1 and above the filtering area 4, an installation box 702 is fixedly connected. Inside the installation box 702, a rotating rod 703 is movably connected. On the outer wall of the rotating rod 703, a gear 704 is fixedly connected. On both sides of the gear 704, a rack 705 is engaged. On one side of the rack 705, a return spring 706 fixedly connected to the inner wall of the installation box 702 is provided. At the top of the outer shell 1 and on the side of the installation box 702, a slide rail 707 is fixedly connected. On the side of the rack 705 away from the return spring 706, a movable rod 708 is fixedly connected. On one side of the movable rod 708, a clamping rod 709 is fixedly connected.

[0028] Among them: Turn the rotating rod 703 to push the gear 704 to rotate, thereby pushing the rack 705 to move and compressing the return spring 706. At the same time, the movable rod 708 can be pulled to move along the track of the slide rail 707, thereby driving the latch 709 away from the connecting rod 701. Then, pull the connecting rod 701 upward to remove the filter screen 5 and the activated carbon layer 6 for replacement. When installing, repeat the above operations, then insert the filter screen 5 and the activated carbon layer 6 into the housing 1, and release the rotating rod 703. At this time, the return spring 706 restores its elasticity, and the latch 709 is inserted into the connecting rod 701 through the rack 705 and the movable rod 708 to fix the filter screen 5 and the activated carbon layer 6. Thus, it is convenient to disassemble and assemble the filter screen 5 and the activated carbon layer 6, facilitating the timely repair and replacement of the filter screen 5 and the replacement of the activated carbon layer 6, avoiding the poor filtering effect of the waste gas of the die-casting machine caused by the damage of the filter screen 5 or the adsorption saturation of the activated carbon layer 6.

[0029] Embodiment 2

[0030] Based on Embodiment 1, the solution in Embodiment 1 is further elaborated in combination with the following specific working methods, such as Figures 1 to 4As shown in the figure, the details are described below: Inside the housing 1 and within the filtration area 4, a collection mechanism 8 is provided. The collection mechanism 8 includes a connecting plate 801, a slide bar 802, a collection box 803, a pull rod 804, a pull block 805, a slider 806, a locking block 807, a spring assembly 808, a card slot 809, a limiting rod 810, a cleaning brush 811, and an adapter rod 812. At the bottom of the housing 1 and below the filtration area 4, a connecting plate 801 is fixedly connected. The side wall of the connecting plate 801 is slidably connected to a slide bar 802. The side wall of the slide bar 802 is fixedly connected to a collection box 803. Inside the connecting plate 801, a pull rod 804 is movably connected. On one side of the pull rod 804, a pull block 805 is fixedly connected. On the side of the pull rod 804 away from the pull block 805, a slider 806 is fixedly connected. On one side of the slider 806, a locking block 807 is fixedly connected. On the side of the slider 806 away from the locking block 807, a spring assembly 808 is fixedly connected. A card slot 809 is provided on the side wall of the collection box 803. On the inner wall of the housing 1 and within the inner wall of the filtration area 4, a limiting rod 810 is fixedly connected. The outer wall of the limiting rod 810 is slidably connected to a cleaning brush 811. The top of the cleaning brush 811 is fixedly connected to an adapter rod 812; Further, pull up the adapter rod 812 to pull the cleaning brush 811 upward along the outer wall of the limiting rod 810 and then move downward under the action of gravity to clean the filter screen 5, sweep away the impurities adsorbed on the filter screen 5, and let them fall into the collection box 803. When the dust in the collection box 803 is full, it is necessary to pull out the pull block 805 outward, and then pull the slider 806 along the inner wall of the connecting plate 801 through the pull rod 804 and compress the spring assembly 808, thereby driving the locking block 807 to move in the same direction, moving the locking block 807 away from the card slot 809, thereby releasing the fixation of the collection box 803, and then the dust inside the collection box 803 can be emptied. During installation, the above operations can be repeated, then release the pull block 805, and under the action of the spring assembly 808, the locking block 807 is snapped into the card slot 809 to fix the collection box 803. Thus, it is convenient to collect and clean the dust in the waste gas, preventing the dust from accumulating inside the housing 1 and causing a reduction in the waste gas filtration effect of the die-casting machine.

[0031] As a preferred embodiment, an air inlet pipe 9 is fixedly connected to the side wall of the outer shell 1, a blower 10 is fixedly connected to the surface of the air inlet pipe 9, a flow guide plate 11 is fixedly connected to the inner wall of the bottom of the outer shell 1 and located inside the spraying area 2, a water guide pipe 12 is fixedly penetrated through the rear side of the spraying area 2, a bottom end of the water guide pipe 12 is fixedly connected to an atomizing nozzle 13, a heating plate 14 is fixedly connected to the inner wall of the outer shell 1 and located inside the drying area 3, and a drain pipe 15 is fixedly connected to the side wall of the outer shell 1 and located below the air inlet pipe 9; further, enter the spraying area 2 through the air inlet pipe 9 and the blower 10. At the same time, it is necessary to connect the water guide pipe 12 to an external water pipe, and spray through the atomizing nozzle 13 to spray the waste gas generated by the die-casting machine, remove sulfur from the waste gas. At the same time, the sprayed liquid will be discharged through the drain pipe 15 under the action of the flow guide plate 11. The waste gas after spraying then enters the drying area 3, and the waste gas is dried under the action of the heating plate 14. Subsequently, it enters the filtering area 4, and is filtered under the action of the filter screen 5 and the activated carbon layer 6, and is discharged from the exhaust pipe, thereby completing the filtering of the waste gas of the die-casting machine and avoiding harm to the human body and the environment.

[0032] As a preferred embodiment, two sets of racks 705 are provided, and the positions of the two sets of racks 705 are symmetrically distributed about the center of the gear 704; further, by providing two sets of racks 705, it is convenient to pull the two movable rods 708 to move relatively, and the fixing and release of the filter screen 5 and the activated carbon layer 6 can be controlled simultaneously.

[0033] As a preferred embodiment, the movable rod 708 forms a sliding structure with the slide rail 707 through the rack 705 and the return spring 706, and the rotating rod 703 is connected to the outer shell 1 by a bearing; further, when the gear 704 rotates, it pushes the rack 705 to move, and squeezes the return spring 706. At the same time, it can pull the movable rod 708 to move along the track of the slide rail 707, thereby driving the clamping rod 709 to move, thus facilitating the control of the movement of the clamping rod 709.

[0034] As a preferred embodiment, the side wall of the cleaning brush 811 is attached to the side wall of the filter screen 5, and the slider 806 forms a sliding structure with the connecting plate 801 through the pull rod 804 and the spring assembly 808; further, pull the connecting rod 812 upward, so that it pulls the cleaning brush 811 to move upward along the outer wall of the limiting rod 810, and move downward under the action of gravity to clean the filter screen 5, sweep away the impurities adsorbed on the filter screen 5, and fall into the collection box 803, thereby facilitating the cleaning of the filter screen 5. Pull the slider 806 to move along the inner wall of the connecting plate 801 through the pull rod 804, and squeeze the spring assembly 808, thereby driving the clamping block 807 to move in the same direction, thus facilitating the control of the movement of the clamping block 807.

[0035] As a preferred embodiment, the top end of the deflector 11 is inclined, and an electronic valve is fixedly connected to the surface of the drain pipe 15; further, the deflected spray liquid after spraying is discharged through the drain pipe 15 by the deflector 11, and the opening and closing of the drain pipe 15 are controlled by the electronic valve.

[0036] The working process of the present utility model is as follows: during use, first, the waste gas generated during the operation of the die-casting machine enters the spraying area 2 through the intake pipe 9 and the fan 10. At the same time, the water guide pipe 12 needs to be connected to an external water pipe, and the waste gas generated by the die-casting machine is sprayed through the atomizing nozzle 13 to remove sulfur from the waste gas. Meanwhile, the sprayed liquid after spraying is discharged through the drain pipe 15 under the action of the deflector 11. The waste gas after spraying then enters the drying area 3 and is dried under the action of the heating plate 14. Subsequently, it enters the filtering area 4 and is filtered under the action of the filter screen 5 and the activated carbon layer 6, and is discharged from the exhaust pipe, thus completing the filtration of the waste gas of the die-casting machine and avoiding harm to the human body and the environment. After the filter screen 5 has been used for a long time, it is necessary to pull up the connecting rod 812, so that it drives the cleaning brush 811 to move upward along the outer wall of the limiting rod 810, and then move downward under the action of gravity to clean the filter screen 5, removing the impurities adsorbed on the filter screen 5 and dropping them into the collection box 803. When the dust in the collection box 803 is full, it is necessary to pull out the pull block 805 outward, and then drive the slider 806 to move along the inner wall of the connecting plate 801 through the pull rod 804, and squeeze the spring assembly 808, thereby driving the latch 807 to move in the same direction, moving the latch 807 away from the card slot 809, thus releasing the fixation of the collection box 803, and then the dust inside the collection box 803 can be emptied. During installation, the above operations can be repeated, and the pull block 805 is released, and the latch 807 is snapped into the card slot 809 under the action of the spring assembly 808 to fix the collection box 803. When the filter screen 5 is damaged or the activated carbon layer 6 needs to be replaced, it is necessary to turn the rotating rod 703 to drive the gear 704 to rotate, thereby driving the rack 705 to move and squeezing the return spring 706. At the same time, the movable rod 708 can be pulled to move along the track of the slide rail 707, thereby driving the latch rod 709 away from the connecting rod 701. Subsequently, the connecting rod 701 is pulled upward to remove the filter screen 5 and the activated carbon layer 6 for replacement. During installation, the above operations are repeated, and then the filter screen 5 and the activated carbon layer 6 are inserted into the housing 1, and the rotating rod 703 is released. At this time, the return spring 706 resumes its elasticity, and the latch rod 709 is inserted into the connecting rod 701 through the rack 705 and the movable rod 708 to fix the filter screen 5 and the activated carbon layer 6. This is the working principle of this die-casting machine waste gas filter.

[0037] Finally, the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A die casting machine exhaust gas filter, comprising a housing (1), characterized in that: The interior of the housing (1) is provided with a spraying area (2), a drying area (3) and a filtering area (4) in sequence from left to right; a filter screen (5) and an activated carbon layer (6) are inserted into the interior of the filtering area (4); a replacement mechanism (7) is provided at the top of the filtering area (4); the replacement mechanism (7) comprises a connecting rod (701), an installation box (702), a rotating rod (703), a gear (704), a rack (705), a return spring (706), a slide rail (707), a movable rod (708) and a clamping rod (709); The top ends of the filter screen (5) and the activated carbon layer (6) are fixedly connected with a connecting rod (701); the top end of the housing (1) and located above the filtering area (4) is fixedly connected with an installation box (702); the interior of the installation box (702) is movably connected with a rotating rod (703); the outer wall of the rotating rod (703) is fixedly connected with a gear (704); racks (705) are meshed on both sides of the gear (704); one side of the rack (705) is fixedly connected with a reset spring (706) fixedly connected to the inner wall of the installation box (702); the top end of the housing (1) and located on the side of the installation box (702) is fixedly connected with a slide rail (707); the side of the rack (705) away from the reset spring (706) is fixedly connected with a movable rod (708); and one side of the movable rod (708) is fixedly connected with a clamping rod (709).

2. The die casting machine exhaust filter according to claim 1, characterized in that: A collecting mechanism (8) is arranged inside the housing (1) and inside the filtering area (4), and the collecting mechanism (8) comprises a connecting plate (801), a sliding bar (802), a collecting box (803), a pull rod (804), a pull block (805), a sliding block (806), a clamping block (807), a spring assembly (808), a clamping slot (809), a limiting rod (810), a cleaning brush (811) and a connecting rod (812).

3. The die casting machine exhaust gas filter according to claim 2, characterized in that: A connecting plate (801) is fixedly connected to the bottom end of the shell (1) and located below the filtering area (4); a sliding bar (802) is slidably connected to the side wall of the connecting plate (801); a collecting box (803) is fixedly connected to the side wall of the sliding bar (802); a pull rod (804) is movably connected inside the connecting plate (801); a pull block (805) is fixedly connected to one side of the pull rod (804); a sliding block (806) is fixedly connected to the side of the pull rod (804) away from the pull block (805); A block (807) is fixedly connected to one side of the slider (806), a spring assembly (808) is fixedly connected to the side of the slider (806) away from the block (807), a slot (809) is provided on the side wall of the collection box (803), a limit rod (810) is fixedly connected to the inner wall of the housing (1) and located in the filter area (4), a cleaning brush (811) is slidably connected to the outer wall of the limit rod (810), and a connecting rod (812) is fixedly connected to the top of the cleaning brush (811).

4. The die casting machine exhaust gas filter according to claim 1, characterized in that: An air inlet pipe (9) is fixedly connected to the side wall of the shell (1), a fan (10) is fixedly connected to the surface of the air inlet pipe (9), a guide plate (11) is fixedly connected to the bottom inner wall of the shell (1) and the inner wall of the spraying area (2), a water guide pipe (12) is fixedly passed through the rear side of the spraying area (2), an atomizing nozzle (13) is fixedly connected to the bottom end of the water guide pipe (12), a heating plate (14) is fixedly connected to the inner wall of the shell (1) and the inner wall of the drying area (3), and a drainage pipe (15) is fixedly connected to the side wall of the shell (1) and located below the air inlet pipe (9).

5. The die casting machine exhaust gas filter according to claim 1, characterized in that: The racks (705) are provided in two groups, and the positions of the two groups of racks (705) are symmetrically distributed about the center of the gear (704).

6. The die casting machine exhaust gas filter according to claim 1, characterized in that: The movable rod (708) forms a sliding structure with the slide rail (707) through the rack (705) and the return spring (706), and the rotating rod (703) and the housing (1) are connected by a bearing.

7. The die casting machine exhaust gas filter according to claim 3, characterized in that: The side wall of the cleaning brush (811) is in contact with the side wall of the filter screen (5), and the sliding block (806) forms a sliding structure with the connecting plate (801) through the pull rod (804) and the spring assembly (808).

8. The die casting machine exhaust gas filter according to claim 4, characterized in that: The top end of the guide plate (11) is inclined, and an electronic valve is fixedly connected to the surface of the drainage pipe (15).

Images