CN112935588A

CN112935588A - Automatic change foundry goods blank laser cutting equipment

Info

Publication number: CN112935588A
Application number: CN202110332295.2A
Authority: CN
Inventors: 司传胜
Original assignee: Huaiyin Institute of Technology
Current assignee: Jiangsu Kamite Laser Intelligent Technology Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-06-11
Anticipated expiration: 2041-03-29
Also published as: CN112935588B

Abstract

The invention discloses an automatic casting blank laser cutting device, which mainly comprises: the material robot is grabbed to first, the cutting robot, first feeding platform, elementary processing position, the material robot is grabbed to the second, second feeding platform, first material robot setting of grabbing is between first feeding platform and cutting robot, the last laser cutter ware that installs of cutting robot, elementary processing position sets up between cutting robot and second material robot one side of grabbing, the second is grabbed the material robot opposite side and is provided with second feeding platform, there is telescopic cylinder elementary processing position top, telescopic cylinder upper end is fixed on first gallows, flexible anchor clamps are installed to telescopic cylinder lower extreme, there is flexible anchor clamps head on the flexible anchor clamps. The product of the invention adopts a visual identification system for installation and positioning, has high positioning speed and good effect, and particularly has irregular shapes such as flash, burr and the like on the casting blank, thereby having good effect.

Description

Automatic change foundry goods blank laser cutting equipment

Technical Field

The invention relates to the technical field related to cast blank processing, in particular to automatic laser cutting equipment for a cast blank.

Background

The casting is a manufacturing process of pouring molten metal into a casting mold, and cooling and solidifying to obtain a part with required shape and performance. The casting is a common manufacturing method, the manufacturing cost is low, the process flexibility is high, complex-shaped and large castings can be obtained, and the castings occupy a large proportion in the mechanical manufacturing, such as 60-80% of machine tools, 25% of automobiles and 50-60% of tractors.

In the casting process, as the casting mold has a parting surface, large flashes are inevitably generated at the upper and lower parting line positions of a casting blank of the casting mold, and the flashes have to be cut off; and because of the casting mold filling process, a certain amount of casting excess materials are left in the sprue on the casting blank, and the excess materials at the sprue must be cut off after the casting is cooled, otherwise, the excess materials have great influence on subsequent processing, the machining efficiency is reduced, and meanwhile, the abrasion of a machine tool and a cutter is accelerated.

At present, in the prior art, processes such as casting polishing and deburring still need more manual assistance to feed and discharge or a fixture is fixed or only can operate some of the processes, a better device is still lacked for systematic cutting and polishing, especially for various castings of specification and model, the operation is time-consuming and labor-consuming when the traditional processing mode is used for fixed processing and polishing, the production efficiency and the processing quality cannot be improved, and meanwhile, certain potential hazards such as safety, quality accidents and pollution also exist. The related designs can be seen in chinese patents 201510726945.6, 201510732164.8, 201610886023.6, 201910032087.3, 201910723401.2, etc., so it is important to use automatic cutting castings. The above patent is difficult to realize fixing the quick location, the centre gripping of multiple specification, different figurative foundry goods, though adopt the laser cutting ware can carry out automatic cutting to the foundry goods, but the cutting process also can not real-time processing to smog, the dust pollution of production.

Disclosure of Invention

Technical problem to be solved

In order to solve the problems in the background art, the invention designs an automatic laser cutting device for casting blanks, which aims to: the casting machine can meet the cutting requirements of products with various specifications, realize rapid positioning and clamping fixation of castings with various specifications and various shapes, can treat the generated smoke, dust and other real-time pollution in the production process, can reduce the labor intensity of workers and the accident rate of safety quality, and has green and safe production effect.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme:

an automatic change foundry goods blank laser cutting equipment mainly includes: first material robot 1, cutting robot 2, first feeding platform 15, elementary station 16, the second of grabbing grab material robot 10, second feeding platform 22 of adding, first material robot 1 of grabbing sets up between first feeding platform 15 and cutting robot 2, install laser cutter 3 on the cutting robot 2, elementary station 16 of adding sets up between cutting robot 2 and second grabbing material robot 10 one side, and the second is grabbed and is expected robot 10 opposite side and be provided with second feeding platform 22, its characterized in that: the cutting and polishing apparatus further comprises: the device comprises a flexible clamp 4, a telescopic cylinder 5, a primary processing bin 17, a filter 19 and a processing tower 30, wherein the telescopic cylinder 5 is arranged above a primary processing station 16, the upper end of the telescopic cylinder 5 is fixed on a first hanging bracket 6, the flexible clamp 4 is arranged at the lower end of the telescopic cylinder 5, and a flexible clamp head 29 is arranged on the flexible clamp 4; the primary processing station 16 comprises a sunken primary processing bin 17, the primary processing bin 17 is sequentially connected with an air inlet pipe 18, a filter 19, an exhaust pipe 20 and a processing tower 30, a lifting rod 25 is installed in the primary processing bin 17, a laser cutting platform 26 is fixed above the lifting rod 25, and a dedusting electromagnet 54 is arranged on the lower side of the laser cutting platform 26.

As a preferable scheme of the previous step, an image acquisition device 7 is further arranged above the primary processing station 16, and an ion fan 8 is arranged on the lower side of the image acquisition device 7. The ion fan 8 is used for sucking and purifying smoke on the lower side of the lens of the image acquisition device 7 during laser cutting processing, so that the lens of the image acquisition device 7 is kept clean, and the working stability of the image acquisition device 7 is ensured.

As a preferable scheme of the previous step, a travel switch 28 is fixed on the side wall of the purification primary processing bin 17, a plunger 27 is further fixed on the laser cutting platform 26, and the plunger 27 and the travel switch 28 work in a matching manner. When the laser cutting platform 26 is pressed to the set position of the travel switch 28 under the flexible clamp 4, the flexible clamp 4 locks the flexible clamp head 29, and the casting blank 14 with the irregular surface can be effectively fixed. The striker 27 can be fixed at different depth positions of the laser cutting platform 26 according to the height adjustment of a workpiece to ensure that the laser cutting platform 26 is better positioned inside the cutting and processing bin 17, and meanwhile, the proper downward pressing stroke can improve the working efficiency.

As a preferable scheme of the previous step, a protective layer 24 is arranged outside the telescopic rod of the lifting rod 25 for protection. Avoiding cutting dust etc. from affecting the operation of the lifter 25.

As a preferable scheme in the previous step, one end of the dedusting electromagnet 54 is arranged in a grid-shaped structure, the other end of the dedusting electromagnet 54 is provided with a dedusting electromagnet base 55 and fixed on the lifting rod 25 through the dedusting electromagnet base 55, and a protective sleeve is sleeved outside the dedusting electromagnet 54. The grid can adsorb iron powder etc. and the great cutting waste material that can drop in its space is convenient for clean and recycle.

As a preferable scheme of the previous step, the air inlet pipe 18 is connected with the top of the filter 19, the exhaust pipe 20 is connected with the inside of the filter in a suspension manner, one end of the exhaust pipe 20 is sleeved with a filter bag 57, the exhaust pipe 20 is provided with a fan 41, and the other end of the exhaust pipe 20 is connected with the treatment tower 30 through a flange 31. The filter 19 is provided with a sealing window 58 on the side to facilitate cleaning of the filter 19 of deposited process debris 56. The blower 41 blows the fume gas from the exhaust duct 20 into the tower 30 for purification.

As a preferable scheme of the previous step, the treatment tower 30 comprises a water pipe 32, a filter barrel 33, an internal water pipe 34, a spray head 35, a water pump 36, a partition 38 and a sewage outlet 40.

As a preferable scheme of the previous step, an inner water pipe 34 is arranged in the treatment tower 30, a certain number of spray nozzles 35 are arranged on the inner water pipe 34, a filter barrel 33 is covered outside the inner water pipe 34 and the spray nozzles 35, and the air inlet end at the lower end of the filter barrel 33 is communicated with the exhaust pipe 20 through a flange 31.

As a preferable scheme of the previous step, the lower end of the water pipe 32 is communicated with the treatment tower 30, the water pipe 32 is provided with a water pump 36, the upper end of the water pipe 32 is connected with the upper end of the inner water pipe 34 through a flange 31 and a reducer pipe, a partition 38 is arranged at the lower end of the inside of the treatment tower 30, which is close to one side of the water pipe 32, and the bottom of the treatment tower 30 is also provided with a sewage outlet 40.

(III) advantageous effects

The invention provides automatic casting blank laser cutting equipment which has the following beneficial effects:

1. the product of the invention does not need random personnel for loading, fixing, unloading and other operations, and the industrial robot, the manipulator and the like can realize the functions of automatic loading, automatic fixing, automatic cutting, automatic unloading and the like, thereby improving the working efficiency and reducing the labor intensity.

2. The product of the invention adopts a visual identification system for installation and positioning, has high positioning speed and good effect, and particularly has irregular shapes such as flash, burr and the like on the casting blank, thereby having good effect.

3. The matrix type flexible fixture pressing from top to bottom is adopted for primary positioning of the product, the requirement for fixing irregular shapes of casting blanks is met, the fixing effect is good, and the efficiency is higher by matching with laser cutting.

4. The ion fan can suck and purify smoke on the lower side of the lens of the image acquisition device during laser cutting processing, keep the lens of the image acquisition device clean and ensure the stable work of the image acquisition device.

5. According to the invention, the casting blank primary processing of the product adopts excess materials such as excess materials of a casting hole and parting surface flash, etc. by laser cutting, so that the efficiency and safety are high, and less dust and powder splash are generated.

6. The primary processing of the product is finished in the processing bin when the product sinks, the electromagnet is arranged in the processing bin to adsorb dust and debris particles, and the processing bin is externally connected with the air suction and dust removal device, so that the cleanness of the processing process can be effectively ensured, and the pollution is reduced.

7. The invention has simple structure, convenient processing, manufacture and popularization, convenient use of the product and high cost performance of the equipment, improves the accuracy and efficiency of operation, and can reduce the occurrence of safety and quality accidents.

8. According to the invention, on one hand, dust can be effectively prevented from being adsorbed on the flexible clamp head through the electromagnet and the dust removal device, so that the loss of dust on the surface of the flexible clamp head in the expansion process of the flexible clamp head can be prevented, the precision of the flexible clamp head is influenced, and the service life of the flexible clamp head is ensured; on the other hand can prevent effectively that the dust from adsorbing on the image acquisition device lens to guarantee that image acquisition device can carry out work by the high definition.

9. The product of the invention has the function of secondary waste gas treatment, converts waste gas into circulating water, and reduces atmospheric pollution through treatment such as sedimentation and filtration, and the treatment difficulty of three wastes is reduced.

Drawings

FIG. 1 is a schematic diagram of the system of the present invention;

FIG. 2 is a front view of the cutting device of the present invention;

FIG. 3 is a top view of the cutting stage processing apparatus of the present invention;

FIG. 4 is a schematic view of the cutting process state of the present invention;

FIG. 5 is a schematic view of a flexible fixture according to the present invention;

FIG. 6 is a schematic diagram of a filtration system according to the present invention;

FIG. 7 is a schematic view of a grid electromagnet according to the present invention;

FIG. 8 is a schematic view of the tail gas purification treatment according to the present invention.

The automatic casting machine comprises a first material grabbing robot 1, a first cutting robot 2, a cutting robot 3, a laser cutter 4, a flexible clamp 5, a telescopic cylinder 6, a hanging bracket 7, an image acquisition device 8, an ion fan 10, a second material grabbing robot 14, a casting blank 15, a first feeding platform 16, a cutting processing station 17, a cutting processing bin 18, an air inlet pipe 19, a filter 20, an exhaust pipe 22, a second feeding platform 23, a finished product 24, a protective layer 25, a lifting rod 26, a laser cutting platform 27, a collision rod 28, a travel switch 29, a flexible clamp head 30, a processing tower 31, a flange 32, a water pipe 33, a filter barrel 34, an inner water pipe 35, an atomizing head 36, a water pump 37, circulating water 38, a partition board 39, waste residues 40, a sewage discharge outlet 41, a fan 54, a dust removal electromagnet 55, a dust removal device 55, a partition board 39, a waste residues, a waste residue discharge outlet, a dust removal device, a dust removal, Dust removal electromagnet base, 56, processing debris, 57, filter bag, 58 and sealing window.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

as shown in fig. 1 to 8, a first material grabbing robot 1 is used for grabbing and placing a casting blank 14 on a first feeding platform 15 onto a cutting and processing station 16, a laser cutter 3 is arranged on a cutting robot 2, the cutting robot 2 controls the spatial position of the laser cutter 3 to perform laser cutting and processing on the casting blank 14 on the cutting and processing station 16, a telescopic cylinder 5 is arranged above the cutting and processing station 16, the upper end of the telescopic cylinder 5 is fixed on the upper end and the lower end of a hanger 6, a flexible clamp 4 is arranged on the flexible clamp 4, the flexible clamp 4 can be pushed downwards after the telescopic cylinder 5 is extended, the flexible clamp head 29 is used for fixing the casting blank 14 on the cutting and processing station 16, an image acquisition device 7 and an ion fan 8 are arranged above the cutting and processing station 16, a sunken cutting and processing bin 17 is arranged on the cutting and processing station 16, the cutting and processing bin 17, an air inlet pipe 18, a filter 19, The exhaust pipes 20 are connected in sequence and used for purifying dust and smoke in the cutting and processing bin 17, and a primary cleaning and processing effect is achieved.

A lifting rod 25 is installed in the cutting and processing bin 17, a travel switch 28 is fixed on the side wall of the lifting rod 25, a laser cutting platform 26 is fixed above the lifting rod 25, and a protective layer 24 is arranged on the outer side of a telescopic rod of the lifting rod 25 for protection, so that cutting dust and the like are prevented from influencing the work of the lifting rod 25; the laser cutting platform 26 is also fixed with a ram 27, the ram 27 is matched with a travel switch 28 for operation, when the laser cutting platform 26 is pressed to a set position of the travel switch 28 under the flexible clamp 4, the flexible clamp 4 locks a flexible clamp head 29, and the casting blank 14 with an irregular surface can be effectively fixed, the casting blank 14 is positioned in the cutting processing bin 17 at the moment, and when the laser cutter 3 performs cutting operation, the air inlet pipe 18, the filter 19 and the exhaust pipe 20 can effectively purify dust in the cutting processing bin 17 and keep clean processing; the lower side of the laser cutting platform 26 is provided with a dust removal electromagnet 54, the dust removal electromagnet 54 is fixed on the lifting rod 25 through a dust removal electromagnet base 55, the dust removal electromagnet 54 can adsorb cast iron powder generated in the casting machining process in the cutting machining bin 17, manual cleaning is reduced, and the working efficiency is improved.

The first material grabbing robot 1 adjusts and positions according to the image acquisition device 7, grabs the casting blank 14 and places the casting blank at a preset position of the cutting and processing station 16, and the second material grabbing robot 10 is used for grabbing a finished product 23 on the cutting and processing station 16 after cutting and processing onto a second feeding platform 22.

The flexible fixture 4 is provided with a flexible fixture head 29 which can effectively fix the casting blank 14 with the irregular surface, and the casting with the complex appearance can be positioned again through the flexible fixture 4 after being overturned for many times by adopting the first material grabbing robot 1, and is processed for many times until the process requirements are met.

Ion fan 8 can be processed laser cutting and induced draft to the smog purification of image acquisition device 7 camera lens downside, keeps image acquisition device 7 camera lens clean, guarantees image acquisition device 7's job stabilization.

The dust removal electromagnet 54 is of a grid-shaped structure, iron powder and the like can be adsorbed by the grid, larger cutting waste materials can fall in gaps of the grid, and a protective sleeve can be sleeved outside the dust removal electromagnet 54, so that the dust removal electromagnet is convenient to clean and recycle.

The air inlet pipe 18, the filter 19 and the exhaust pipe 20 are sequentially connected, the air inlet pipe 18 is connected with the top of the filter 19, the exhaust pipe 20 is connected with the inside of the filter in a suspension manner, and the exhaust pipe 20 is sleeved with a filter bag 57; the filter 19 is provided with a sealing window 58 at the side for cleaning the processing debris 56 deposited in the filter 19.

The height of the plunger 27 is adjustable, the plunger can be matched with the travel switch 28 after being properly positioned according to the size of the casting blank 14, so that the casting blank 14 can be better sunk to be cut in the cutting and processing bin 17, the better clean processing process is realized, the plunger 27 can be fixed at different depth positions of the laser cutting platform 26 according to the height adjustment of a processed workpiece, the laser cutting platform 26 is guaranteed to be better positioned in the cutting and processing bin 17, and meanwhile, the proper downward-pressing travel setting can improve the working efficiency.

The exhaust pipe 20 is provided with a fan 41, the exhaust pipe 20 is connected with the treatment tower 30 through a flange 31, and the fan 41 can blow the smoke gas of the exhaust pipe 20 into the treatment tower 30 for purification treatment; the inside of the treatment tower 30 is composed of a flange 31, a water pipe 32, a filter barrel 33, an inner water pipe 34, spray heads 35, a water pump 36, a partition 38 and a sewage outlet 40, the inner water pipe 34 is arranged in the treatment tower 30, a certain number of spray heads 35 are arranged on the inner water pipe 34, the filter barrel 33 is covered outside the inner water pipe 34 and the spray heads 35, the flange 31 is arranged at the air inlet end of the lower end of the filter barrel 33 and communicated with the exhaust pipe 20, a certain amount of circulating water 37 is arranged in the treatment tower 30, the water pump 36 is arranged at the lower end of the water pipe 32, and the upper end of the water pipe is connected with the inner water pipe 34 after passing through; circulating water 37 can circularly flow in the treatment tower 30, the water pipe 32, the inner water pipe 34, the spray head 35 and the filter barrel 33 through a water pump 36, so that dust pressed in by the exhaust pipe 20 can be treated through the circulating water 37, a partition plate 38 is arranged at the lower end of the inside of the treatment tower 30, which is close to one side of the water pipe 32, and waste residues 39 deposited after purification treatment in the treatment tower 30 are isolated, and the circulating water 37 can overflow from the upper side of the partition plate 38 to one side of the water pipe 32 at the lower end of the treatment tower 30; the treatment tower 30 is further provided with a sewage outlet 40 for periodically cleaning the waste residue 39.

The specific implementation process comprises the following steps:

1) the first loading and unloading robot 1 grabs the casting blank 14 on the first feeding platform 15 to the position above the cutting and processing station 16.

2) And the first loading and unloading robot 1 accurately places the casting blank 14 on a specified position on the laser cutting platform 26 of the cutting and processing station 16 according to the image acquisition device 7.

3) When the flexible clamp head 29 presses the casting blank 14, the laser cutting platform 26 and the ram 27 to the set position of the travel switch 28, the flexible clamp head 29 is locked by the flexible clamp 4 to effectively fix the casting blank 14 with the irregular surface;

4) and the air inlet pipe 18, the filter 19, the exhaust pipe 20, the dust removal electromagnet 54 and the ion fan 8 of the primary processing bin 17 start to perform dust removal, smoke removal, adsorption and other work. The laser cutter 3 on the cutting robot 2 then performs a laser cutting work on the cast blank 14. After cutting, the flexible fixture 4 moves upwards to reset, and the lifting rod 25 lifts the laser cutting platform 26 and the casting blank 14 to the position before processing.

5) The second material grabbing robot 10 is used for grabbing the casting blanks 14 on the cutting processing station 16 after cutting processing to the specified position of the secondary processing station 21.

6) The casting is fixed in the secondary processing bin 30 according to the set induction fixture, and the air inlet pipe 18, the filter 19, the exhaust pipe 20 and the dust removal electromagnet 54 which are connected with the secondary processing bin 30 start to perform dust removal, smoke removal, adsorption and other work. The sanding head 12 on the sanding robot 9 then begins to perform sanding work on the casting.

7) The third material grabbing robot 13 is used for grabbing the finished product 2 on the secondary machining station 21 after grinding to the second feeding platform 22 to complete the system machining work.

The design purpose is achieved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. In view of the above, the present invention achieves the intended objects.

Claims

1. An automatic change foundry goods blank laser cutting equipment mainly includes: first material robot (1), cutting robot (2), first feeding platform (15), elementary station (16) that adds, second grab material robot (10), second feeding platform (22), first material robot (1) that grabs sets up between first feeding platform (15) and cutting robot (2), install laser cutter (3) on cutting robot (2), elementary station (16) that adds sets up grabs between material robot (10) one side at cutting robot (2) and second, and second material robot (10) opposite side is grabbed to the second and is provided with second feeding platform (22), its characterized in that: the cutting and polishing apparatus further comprises: the device comprises a flexible clamp (4), a telescopic cylinder (5), a primary processing bin (17), a filter (19) and a processing tower (30), wherein the telescopic cylinder (5) is arranged above a primary processing station (16), the upper end of the telescopic cylinder (5) is fixed on a first hanging bracket 6, the flexible clamp (4) is arranged at the lower end of the telescopic cylinder (5), and a flexible clamp head (29) is arranged on the flexible clamp (4); elementary processing position (16) are including sunken elementary processing storehouse (17), and elementary processing storehouse (17) connects gradually with intake pipe (18), filter (19), exhaust pipe (20), treatment tower (30), install lifter (25) in elementary processing storehouse (17), lifter (25) top is fixed with laser cutting platform (26), and laser cutting platform (26) downside has dust removal electro-magnet (54).

2. The automated laser cutting apparatus for foundry blanks of claim 1, wherein: an image acquisition device (7) is arranged above the primary processing station (16), and an ion fan (8) is arranged on the lower side of the image acquisition device (7).

3. The automated laser cutting apparatus for foundry blanks of claim 1, wherein: a travel switch (28) is fixed on the side wall of the purification primary processing bin (17), a collision rod (27) is further fixed on the laser cutting platform (26), and the collision rod (27) and the travel switch (28) work in a matched mode.

4. The automated laser cutting apparatus for foundry blanks of claim 1, wherein: the outer side of the telescopic rod of the lifting rod (25) is protected by a protective layer (24).

5. The automated laser cutting apparatus for foundry blanks of claim 1, wherein: one end of the dust removal electromagnet (54) is of a grid-shaped structure, the other end of the dust removal electromagnet (54) is provided with a dust removal electromagnet base (55) and is fixed on the lifting rod (25) through the dust removal electromagnet base (55), and a protective sleeve is sleeved outside the dust removal electromagnet (54).

6. The automated laser cutting apparatus for foundry blanks of claim 1, wherein: intake pipe (18) are connected at filter (19) top, and exhaust pipe (20) are connected at the inside unsettled of filter, and exhaust pipe (20) serve the cover and are equipped with filter bag (57), install fan (41) on exhaust pipe (20), exhaust pipe (20) other end passes through flange (31) and is connected with treatment tower (30).

7. The automated laser cutting apparatus for foundry blanks of claim 6, wherein: the treatment tower (30) comprises a water pipe (32), a filter vat (33), an inner water pipe (34), a spray head (35), a water pump (36), a partition board (38) and a sewage outlet (40).

8. The automated laser cutting apparatus for foundry blanks of claim 7, wherein: an inner water pipe (34) is arranged in the treatment tower (30), a certain number of spray heads (35) are arranged on the inner water pipe (34), a filter barrel (33) is covered outside the inner water pipe (34) and the spray heads (35), and the air inlet end at the lower end of the filter barrel (33) is communicated with the exhaust pipe (20) through a flange (31).

9. The automated laser cutting apparatus for foundry blanks of claim 6, wherein: the water pump (36) is installed in water pipe (32) lower extreme and treatment tower (30) intercommunication, water pipe (32), and flange (31), reducing pipe and interior water pipe (34) upper end are passed through to water pipe (32) upper end and are connected, there is baffle (38) treatment tower (30) inside lower extreme near water pipe (32) one side, treatment tower (30) bottom drain (40) in addition.