912 results about "Blasting machine" patented technology

The invention relates to the technical field of stainless steel pipe production, and provides a stainless steel seamless steel pipe production process which comprises the following steps: step 1, raw material pretreatment: selecting a stainless steel pipe blank conforming to specifications, detecting internal defects through ultrasonic flaw detection, and cleaning the surface of the pipe blank by adopting a shot blasting machine; 2, tube blank heating, wherein the tube blank in the step 1 is placed in a medium-frequency induction heating furnace to be heated; thirdly, hot extrusion forming is conducted, specifically, the pipe blank in the second step is placed in an extruding machine with an annular die head, and an initial seamless steel pipe is formed; and 4, on-line solid solution treatment is conducted, specifically, the steel pipe in the step 3 is fed into a continuous solid solution furnace to be subjected to heat preservation for 30-60 seconds. By means of the multi-link collaborative optimization production technology, high-quality batch production of the stainless steel seamless steel pipe and flaw detection and surface cleaning in the raw material pretreatment stage are achieved, the pipe blank quality is guaranteed, sectional type heating and precise temperature control hot extrusion forming are achieved, and the structural integrity of the initial steel pipe is guaranteed.

An explosives detonator is configured to be moved across land by a vehicle platform to detonate explosives positioned on or in the land. The explosives detonator includes a frame and a plurality of rollers coupled to the frame. The plurality of rollers are configured to engage and roll along the land relative to the frame about respective roller axes as the vehicle travels along the land. The rollers are weighted to exert pressure on the land and activate any pressure-sensitive explosives, such as mines.

The invention belongs to the technical field of alloy surface machining, and relates to a high-temperature alloy mother alloy bar surface machining method including shot blasting pretreatment. The machining method comprises the following steps that S1, shot blasting pretreatment is conducted, specifically, a high-temperature alloy mother alloy bar is fed into a shot blasting machine to be subjected to shot blasting treatment; and S2, finish turning machining is conducted, specifically, a lathe is used for directly conducting finish turning machining on the surface of the high-temperature alloy mother alloy bar subjected to shot blasting pretreatment. According to the method, the rough turning step in the traditional turning process is creatively replaced by shot blasting pretreatment, the shot blasting step and the finish turning step are combined, an economical surface machining route is achieved through a specific process system, and meanwhile the method has the advantages of being low in loss and high in cleanliness.

An explosives detonator is configured to be moved across land by a vehicle platform to detonate explosives positioned on or in the land. The explosives detonator includes a frame and a plurality of rollers coupled to the frame. The plurality of rollers are configured to engage and roll along the land relative to the frame about respective roller axes as the vehicle travels along the land. The rollers are weighted to exert pressure on the land and activate any pressure-sensitive explosives, such as mines.

A perforating gun includes a gun assembly and a gun barrel. The gun assembly includes a charge tube comprising at least one shaped charge. A pin contact assembly is operably attached to a first end of the charge tube and includes a contact spacer and a through pin configured to provide electrical communication between respective perforating guns. An addressable switch assembly is attached to a second end of the charge tube and comprises an addressable switch and a detonator. The gun assembly is situated within the gun barrel and is configured to self-orient inside the gun barrel.

The invention discloses an intelligent transfer and multi-station cooperative assembly system and method for sheet pipe truss machining. The intelligent transfer and multi-station cooperative assembly system comprises an electromagnetic rail, and an AGV trolley is movably connected to the electromagnetic rail; a truss transferring manipulator and a truss moving manipulator; the shot blasting machine is used for carrying out shot blasting treatment on the rod piece; the truss boxing robot is used for carrying out boxing treatment on the rod pieces subjected to shot blasting treatment; and the forklift robot is used for conveying the rod pieces on the AGV trolley at the material receiving station to the joist barrow, and the rod pieces are conveyed to the assembling station, the welding station, the polishing and shape adjusting station and the paint shed through the joist barrow. According to the invention, the closed-loop assembly line work of cutting-cleaning-transportation can be realized, rhythm faults caused by manual intervention are reduced, the overall productivity is improved, the forklift robot can accurately receive the rod pieces transported by the AGV and convey the rod pieces to a material receiving station, the traditional material transfer and stockpiling time is eliminated, and the production cycle is shortened.

The invention discloses a lifting hook type shot blasting device, and relates to the technical field of shot blasting machines, the lifting hook type shot blasting device comprises a shot blasting chamber and further comprises a support fixed on the shot blasting chamber, the support is slidably connected with a lifting appliance through a rail, a plurality of shot blasting devices are fixed on the shot blasting chamber, a spiral conveyer is fixed on the shot blasting chamber, and the lifting appliance is connected with a lifting hook. A bucket elevator is arranged on one side of the spiral conveyor, and the discharging end of the spiral conveyor is located in the bucket elevator. The shot blasting device comprises a shot blasting chamber and a supporting frame fixed to the shot blasting chamber, a treatment box is fixed to the supporting frame, a screening mechanism is arranged on the treatment box, and the screening mechanism is used for screening impurities containing impurities in shots; the winnowing mechanism is arranged on the treatment box, and the winnowing mechanism is used for screening out fine impurities containing impurities in the shots; through the arrangement of the screening mechanism, large-particle-size impurities and broken shots can be more directly and effectively prevented from entering the shot blasting chamber again, and all parts in the shot blasting chamber can be well protected.

The present application relates to a kind of double-system integrated high-efficiency sand blasting machine, by symmetrical arrangement double sand blasting frame and supporting device, realize two groups of cooker synchronous feeding-sand blasting-discharging cycle operation, compared with traditional single system production capacity increases 100%, simultaneously, through the three-station uniform distribution design of rotating frame, form continuous assembly line mode of operation;Double rack interval type layout both guarantees independent operation space, also share central finished product centralized conveying belt;Three groups of cooker fixed component distribution optimizes space utilization, compared with traditional linear arrangement scheme reduces 30% of floor area;By being provided with discharging device on the side of feeding device, and the other end of discharging device is connected with cleaning process, so that cooker can be immediately transported to sand blasting machine for sand blasting work after cleaning, realize automatic feeding-feeding-sand blasting-discharging, form closed-loop material flow, cooperate with finished product centralized conveying belt, reduce 80% of manual intervention link, single shift can save 3-4 operating personnel.

The utility model relates to a shot -blasting machine technical field especially relates to a kind of shot -blasting recycling mechanism of shot -blasting machine, solve the problem of inconvenient broken shot screening in recycling operation process in prior art existing shot -blasting recycling mechanism.A kind of shot -blasting recycling mechanism of shot -blasting machine, including recycling bin and the top cover connected in the top of recycling bin;The bottom of the side of recycling bin is provided with connecting port, connecting port inside is provided with waste collection bin;Recycling bin inside is provided with V-shaped screening frame, V-shaped screening frame side wall is provided with several screening grooves, and recycling bin inner wall is connected with bearing frame, and V-shaped screening frame edge is connected with the top of bearing frame by elastic connecting structure;V-shaped screening frame side is connected with vibration motor, and the top of top cover is provided with feed inlet.The utility model is matched by V-shaped screening frame and vibration motor, effectively screens broken shot and complete steel shot, improves screening efficiency and the convenience of recycling operation.

The utility model relates to surface treatment technical field discloses caterpillar -type automatic shot -blasting machine, including the shell, the shell inner wall left and right sides between rotationally connected with three cylinders, three the cylinder between being provided with transmission caterpillar, the shell inner wall left and right sides all are fixedly connected with the guide plate, the shell right side fixedly connected with second motor, second motor output and the cylinder between top fixed setting, the shell bottom fixedly connected with the collecting hopper, the collecting hopper front side fixedly connected with first motor, first motor output fixedly provided with first spiral rod. In the utility model, the falling shot is collected through the collecting hopper, the shot falls to the first spiral rod at the bottom, rotates through the first motor and drives the first spiral rod, thereby making the shot move in the collecting hopper, wherein the seriously worn shot will drop from the hole at the bottom, thereby screening the defective shot.

The utility model discloses a wet type sand blasting machine which comprises a first belt conveying mechanism and a second belt conveying mechanism, an automatic feeding structure, a spray gun lifting structure, a pre-cleaning spray head and a secondary cleaning spray head are sequentially arranged on one side of the upper portion of the first belt conveying mechanism from left to right, and the lower portion of the spray gun lifting structure is connected with a spray gun structure. A movable ultrasonic cleaning structure, a rinsing spray head, a hot air spray head and an automatic discharging structure are sequentially arranged above the second belt conveying structure from left to right. The rear end of the hot air spray head is connected with a hot air drying structure through a pipeline. The pre-cleaning spray head and the secondary cleaning spray head are connected with the precise solid-liquid separation structure through pipelines, and the precise solid-liquid separation structure is arranged at the ends, away from the first belt conveying structure, of the pre-cleaning spray head and the secondary cleaning spray head. According to the utility model, wet-type sand blasting can be facilitated.

The utility model relates to the technical field of aluminum alloy plate sand blasting equipment, in particular to an aluminum alloy template surface sand blasting oxidation treatment device which is provided with a fixing device for vertically placing an aluminum alloy plate, preventing sand grains from staying on the surface of the aluminum alloy plate and improving the sand blasting quality. The non-sand-blasting surface of the aluminum alloy plate is fixed by using a vacuum chuck, so that the sand blasting coverage range is enlarged, and the sand blasting uniformity is improved; comprising a body; the sand blasting machine further comprises a fixing device, a covering device, a sand blasting device and a recovery device, and the fixing device, the covering device, the sand blasting device and the recovery device are all installed on the machine body. The machine body provides support, the fixing device fixes the aluminum alloy plate, the covering device covers the machine body and facilitates operation of workers, the sand blasting device conducts sand blasting treatment on the aluminum alloy plate, and the recovery device recovers sand grains.

The utility model discloses a shot blasting machine shot blasting steel piece placing rack which comprises a top plate and a base, the upper surface of the base is connected with an electric push rod, the power output end of the electric push rod is connected with the lower surface of the top plate, and the lower surface of the top plate is rotatably connected with a top end fixing piece around the electric push rod. A bottom end fixing part corresponding to the top end fixing part is arranged above the base, a supporting column is connected to the lower portion of the bottom end fixing part, the supporting column is rotationally connected with the base, the other end of the supporting column is arranged in the base and connected with a driven fluted disc, a motor is arranged in the middle of the bottom in the base, and the power output end of the motor is connected with a driving fluted disc; and the driving fluted disc is meshed with a driven fluted disc. Compared with the prior art, the shot blasting machine has the advantages that the shot blasting machine can be stably positioned and placed, and can provide rotating power, so that all the surfaces of workpieces can be subjected to shot blasting.

The utility model relates to the technical field of shot blasting machine hangers, in particular to an improvement of a guide arm shot blasting hanger, which has the following main improvement directions: firstly, the shot blasting efficiency is improved, and secondly, the labor intensity of an operator is reduced and the turn-over speed of a workpiece is accelerated. According to the utility model, the positioning and supporting V-shaped blocks are improved, so that when the guide arm is turned over, tool parts do not need to be moved, the labor intensity of an operator is reduced, and the turning speed of the guide arm is increased. And meanwhile, the V-shaped block is provided with the V-shaped groove, so that the guide arm is fixed more firmly, and the shot blasting efficiency can be improved.

This disclosure relates to the technical field of shot blasting machines. One embodiment of this disclosure provides a tracked shot blasting machine with a gear ring for a transmission system, comprising: a recovery box and a housing, the housing being fixed to the recovery box, the shot blasting machine body being installed inside the top of the housing, a feeding auger being fixed in the recovery box and connected to the shot blasting machine body, a tilting processing component being disposed in the recovery box, and a discharge sorting component being disposed in the housing and the recovery box. The tilting processing component includes a feeding pipe disposed on one side of the recovery box, a sealing cover being rotatably connected to the feeding pipe via a pin, and a tilting frame that is electrically driven to rotate inside the housing, the surface of the tilting frame having a grid-like structure. This technical solution solves the technical problem in the prior art where steel balls and debris are mixed together after grinding, making it difficult to recycle the steel balls, and the grinding debris cannot be effectively collected and recycled for subsequent processing.

The utility model belongs to the technical field of air coolers, and particularly relates to a refrigeration house fan tray convenient to clean, which adopts the following scheme that the refrigeration house fan tray comprises an air cooler body; the tray is arranged at the bottom of the air cooler body; the lifting mechanism is located in an inner cavity of the tray, the lifting mechanism is used for facilitating workers to clean the bottom of the air cooler body and the top of the tray, and the lifting mechanism comprises a motor, a first bevel gear, a second bevel gear, a rotating rod, a third bevel gear, a fourth bevel gear, a lead screw and a threaded cylinder; the motor is fixedly installed on the top of an inner cavity of the tray, the output end of the bottom of the motor is fixedly connected with the first bevel gear, the four corners of the bottom of the first bevel gear are all meshed with the second bevel gears, the ends, away from the first bevel gear, of the second bevel gears are fixedly connected with the rotating rods, and the number of the rotating rods is four. And the maintenance efficiency of the air cooler body can be improved, and a large amount of physical labor of workers is saved.

The utility model discloses surface treatment equipment for mold production, which belongs to the technical field of mold production and comprises a sand blasting machine body, a door frame is mounted on one side of the sand blasting machine body, and an observation window and a skylight are mounted on the side face and the top of the sand blasting machine body respectively. Supporting legs are fixedly connected to the lower portion of the sand blasting machine body, a discharging hopper is installed at the bottom of the sand blasting machine body, and a motor is installed in the discharging hopper. The four clamping assemblies are distributed above the machining disc in a surrounding mode, firstly, a to-be-machined mold is placed above the machining disc, at the moment, the adjusting buttons are sequentially screwed to drive the screw rods to rotate, the arc-shaped pads are attached to the surface of the mold, clamping and limiting of the mold are formed, then the position of a spray head of a sand blasting machine is aligned with the mold, and sand blasting is conducted; and dust and residual abrasive materials can be filtered through a filter frame and sieve holes, traditional manual sand blasting on the mold is replaced, the overall working efficiency is high, and operation is convenient.

The utility model belongs to the technical field of refrigeration equipment, and particularly relates to an air cooler convenient to maintain, which comprises an air cooler body. First fixing frames are arranged on the two sides of the inner surface of the air cooler body in a threaded mode. The first fixing frame comprises a supporting strip; the two ends of the supporting strips on the two sides are rotationally connected with rotating strips correspondingly. The rotating strips on the two sides are clamped to the inner sides of the two ends of the first rotating fan blade. First fixing grooves are formed in the two ends of the first rotating fan blade; the top of the inner surface of the air cooler body is in threaded connection with a second fixing frame. The second fixing frame comprises a mounting frame; limiting strips are fixedly connected to the two sides of the mounting frame correspondingly. And connecting plates are fixedly connected to the ends of the multiple limiting strips correspondingly, when internal parts are damaged, the first fixing frame and the second fixing frame can be rapidly disassembled, so that the internal mechanical parts are conveniently maintained, and the problem that maintenance personnel consume a large amount of time in the disassembling process is effectively solved.

A detonator for a perforating gun. The detonator is used to ignite a detonator cord in a charge tube for a perforating gun assembly, which in turn is used for perforating a wellbore. The detonator includes a cartridge. The cartridge comprises a tubular body having a first end; and a second end. Preferably, the tubular body is fabricated from a metallic material. The detonator also comprises a post proximate the first end of the tubular body. The post is configured to be in electrical communication with a first leg wire connected to an addressable switch. Alternatively, the post is in contact with the end of a detonation pin. The detonator also has a fuse head within the bore of the tubular body, and a fuse wire. The fuse head is in contact with the explosive charge material. The detonator is releasably snapped into a compartment located within the charge tube.

The utility model provides a head-shaking spraying air cooler which comprises a fan shell, a grid is arranged on the rear side of the fan shell, and a fan installed in the fan shell is arranged on one side of the grid. The atomization mechanism is installed in the fan shell, and the atomization mechanism is used for spraying mist; the rotating mechanism is used for driving the fan shell to rotate; the top side of the air cooler base is connected with the bottom side of the fan shell through a rotating mechanism; and the filtering mechanism is detachably mounted on the surface of the fan shell. The rotating mechanism achieves rotation of the fan shell on the top side of the air cooler base, the fan shell conveniently rotates in a head shaking mode to blow air, discomfort caused by continuous directional blowing is avoided, under the blowing effect of the fan, the atomization mechanism continuously supplies water mist, the water mist is conveniently carried in blown air, the water mist enters air conveniently, and the water mist is rapidly evaporated in the air. A large amount of heat is absorbed and taken away, and the rapid cooling effect is improved.

The channel type workpiece surface treatment system comprises a front-back through shell wall unit, and the shot blasting devices are installed on the upper wall body, the lower wall body, the left wall body and the right wall body of the shell wall unit; the shell wall units are mutually spliced and communicated in the front-back direction to form a channel type shot blasting system, and a shot blasting process assembly line channel is formed in the channel type shot blasting system; a left workpiece driver and a right workpiece driver are arranged on the inner side of each shell wall unit in a bilateral symmetry mode. A plurality of left workpiece drivers in the shot blasting process assembly line channel form a left workpiece driver array; a plurality of right workpiece drivers in the shot blasting process assembly line channel form a right workpiece driver array; the I-shaped steel beam shuttles back and forth in the extending direction of the shot blasting process assembly line channel under the common lifting and driving of the left workpiece driver array and the right workpiece driver array; and the shot blasting treatment effect of the inner surface of the workpiece can be actively improved in the continuous conveying process of the workpiece.

The waste gas treatment device comprises an outer iron sheet box, the right side of the outer iron sheet box is provided with a shot blasting machine waste gas filtering air inlet facilitating waste gas entering, the left side of the outer iron sheet box is provided with a fixing frame, an air blower and a shot blasting machine waste gas filtering air outlet, and multiple layers of fine-mesh filtering cotton are arranged in the outer iron sheet box. The device is simple and reasonable in structure, waste gas can be subjected to layered filtering treatment, the waste gas filtering efficiency is improved, the waste gas filtering efficiency and the production progress are kept synchronous, iron rust, rust removal steel shots and other solid dust impurities in the waste gas are precisely classified and recycled, and waste resource utilization is promoted.

This invention relates to the field of variable frequency motor control technology, and discloses a method for optimizing and adjusting the energy consumption of a variable frequency motor in a shot blasting machine. The method includes: acquiring the real-time current signal of the motor; converting its inherent high-frequency ripple shape into a discrete gear signal reflecting the mechanical load through a signal processing module; filtering the discrete gear signal using a confirmation time window to suppress instantaneous impacts; and then matching and determining the target operating frequency in a lookup table based on the effective gear signal for feedforward adjustment. This invention eliminates the reliance on external load sensors, basing the adjustment entirely on the electromagnetic characteristics of the motor itself. This not only structurally avoids the risk of failure due to sensor malfunctions, but also replaces the response delay of traditional feedback control with an instantaneous feedforward approach in the control logic, achieving close tracking of energy consumption and load.

The utility model provides a feeding system of a vertical shot blasting machine, which comprises a mounting frame arranged beside the vertical shot blasting machine, a travelling crane which transversely reciprocates is arranged at the top of the mounting frame, the travelling crane is connected with a chain elevator, the chain elevator comprises a bottom frame and a supporting plate which rotates relative to the bottom frame, the mounting frame is further connected with a guide chute, and the guide chute is connected with a feeding hopper. The lower end of the guide chute extends into a feeding hole of the vertical shot blasting machine; the track is fixedly arranged relative to the mounting frame, the feeding trolley moves on the track, and the feeding trolley can move to the supporting plate at the lowest position through the track. The feeding structure solves the problem that a feeding structure in the prior art is not suitable for a larger vertical shot blasting machine.

A kind of on-line cylinder shot blasting machine and on-line cylinder shot blasting system, inner door is arranged on the existing cylinder cylindrical side wall, and inner door is driven to open or close along the direction of cylinder axis by automatic door mechanism arranged on shell, automatic door mechanism includes outer door corresponding to the position of inner door arranged on shell, outer door is slidably arranged on the outer side of inner door on shell, and its opening direction is same with inner door, while outer door is connected with the free end of linear driving element by connecting rod assembly, and the fixed end of linear driving element is connected at the top of shell, and inner side of outer door drives inner door to open or close simultaneously by linkage assembly when opening or closing door.Linkage assembly uses two linkage shafts spaced apart and extending to the direction of inner door, and roller is rotatably connected on linkage shaft.By controller, the above-mentioned automatic door mechanism realizes on-line automatic operation of on-line cylinder shot blasting machine, improves the automation of shot blasting work, so as to reduce the consumption of human resources, and improve production efficiency.

The utility model discloses a device capable of quickly replacing rubber sheets at an inlet and an outlet of a shot blasting machine, and belongs to the field of shot blasting machines. The device is mounted at an access hatch of the shot blasting machine, and comprises a variable-diameter plate arranged on the access hatch of the shot blasting machine and provided with a first discharge port; the iron ring is arranged on the reducing plate; the polyurethane plate is mounted between the variable-diameter plate and the iron ring, and a second discharge port is formed in the polyurethane plate; the caliber of the discharge hole is matched with the outer diameter of the steel pipe; and the diameter of the discharge hole in the variable-diameter plate can be changed according to the outer diameter of the steel pipe. The device capable of rapidly replacing the inlet and outlet rubber sheets of the shot blasting machine has the beneficial effects that the time for replacing the tool rubber sheets is shortened, and the production rhythm and the actual efficiency are improved.

The utility model provides a casting surface shot blasting cleaning device which comprises a machine shell, the machine shell is installed on a machine frame, an inlet and outlet is formed in one side of the machine shell, a material throwing opening is formed in the portion, above the inlet and outlet, of the machine shell, a shot blasting device is arranged on the edge of the material throwing opening, a material containing barrel is arranged in the machine shell, the material containing barrel is rotatably installed in an annular frame, and supporting shafts are symmetrically arranged on the two sides of the annular frame. The two supporting shafts are rotationally installed on the machine shell, the end, away from an opening of the material containing barrel, of the material containing barrel is coaxially connected with the driving motor, the driving motor is arranged on the U-shaped frame, the two ends of the U-shaped frame are connected with the annular frame, an adjusting motor connected with the supporting shafts is arranged on the side face of the outer portion of the machine shell, and under driving of the adjusting motor, the top opening of the material containing barrel is aligned with the shot blasting device. A plurality of pill falling holes are formed in the bottom surface of the material containing barrel. When in use, compared with a traditional belt type shot blasting machine, the material containing barrel is high in structural strength, does not deform after being used for a long time, and does not need to be replaced after being used for a long time.

The utility model relates to a shot -blasting machine technical field, and disclose a kind of mesh belt type shot -blasting cleaning cleaning machine, including rack, feed stand and discharge stand, the inside of feed stand is provided with baffle mechanism, the top of discharge stand is provided with air pump.The mesh belt type shot -blasting cleaning cleaning machine, by the setting of air pump, cleaning mechanism, screw rod and lifting mechanism, workpiece is handled after being treated by shot -blasting cleaning area, by mesh belt and is conveyed to the below of discharge stand, air pump is started and high-pressure airflow is conveyed to the inclined air nozzle by air pipe at this time, workpiece surface is jetted from multiple angles, and residual projectile is removed, for the workpiece of different height, operator can rotate hand wheel and drive worm rotation, the up-and-down movement of screw rod is driven by worm gear, drive the overall lifting of cleaning mechanism in the bottom of branch plate, while guide rod ensures movement stable, after adjusting to suitable height, the inclined air nozzle of cleaning mechanism can accurately aim at workpiece surface, ensure projectile removal effect.

The drum-type sand blasting machine comprises a machine box, the machine box is provided with a sand blasting chamber, a drum capable of rotating around the axis of the drum is arranged in the middle of the sand blasting chamber in a turnover mode, and the sand blasting chamber is sequentially provided with a feeding port, a sand blasting assembly and a discharging box along the turnover circumference of the drum. A feeding position, a sand blasting position and a discharging position facing the feeding port, the sand blasting assembly and the discharging box are formed in the roller in the overturning process, and the roller can be freely switched among the feeding position, the sand blasting position and the discharging position so that parts to be machined can be poured into the discharging box after being subjected to sand blasting machining. The whole structure is small, manual feeding and discharging are not needed, and the whole machining efficiency is improved.

The utility model discloses a discharging and cleaning device of a shot blasting machine, which comprises a machine frame and the shot blasting machine arranged on the machine frame, and further comprises a water passing screen which is arranged on the machine frame, is positioned below a discharging hole of the shot blasting machine, is obliquely arranged and forms a high end and a low end; the material guide frame is arranged at the end part of the lower end of the water passing screen and is provided with an inclined material guide groove; and the cleaning pipe is arranged on the rack and is provided with a nozzle or a spray head for spraying water to the screen. According to the shot blasting machine, the workpieces and the pellets are discharged to the water passing screen from the outlet of the shot blasting machine and slide down along the water passing screen, when the workpieces and the pellets slide down to the middle of the water passing screen, the workpieces and the pellets are cleaned by spraying water through the arranged cleaning pipe, the cleaned workpieces and the cleaned pellets continue to slide down along the water passing screen, and the cleaned workpieces and the cleaned pellets slide down to the material guide groove after washing water is drained off; when a workpiece and the like fall onto the water passing screen, the elastic supporting piece is arranged at the bottom of the water passing screen, so that the water passing screen swings up and down along a hinge point, and the workpiece is shaken to slide down.