166results about How to "Reduce processing steps" patented technology

The utility model discloses a compressor installation structure and an air conditioner, and relates to the technical field of air conditioners, the compressor installation structure comprises a base plate and positioning columns, the positioning columns are fixed on the base plate and used for being distributed around a compressor so that bottom feet of the compressor can be arranged in a sleeved mode, and the positioning columns and the base plate are made of the same material. And the two are integrally formed. According to the technical scheme, the machining efficiency of the chassis is improved, and the machining efficiency of the air conditioner is improved.

A device and method for pitting crabapple fruits during deep processing, belonging to the field of fruit processing equipment, is disclosed. One set of rollers has a conveyor belt I on its outer side, and another set of rollers has a conveyor belt II on its outer side, with conveyor belt II located inside conveyor belt I. A rotating shaft is located on the side of each roller, and a bracket is fixedly connected to the shaft. Conveyor belt I has multiple perforations, and conveyor belt II has grooves. An arc-shaped limiting plate and an inclined plate are fixedly connected between the opposing surfaces of two side guard plates. A cylinder is fixedly connected to the upper end of a support plate, and a connecting plate is fixedly connected to the free end of the cylinder. This invention allows for the simultaneous pitting of fruits of different sizes using conveyor belts I and II. After pitting, the fruits can be directly collected according to size, reducing processing steps, saving time, and increasing efficiency. Furthermore, the pitted fruit can be directly transferred to the subsequent processing workshop for production without temporary storage, saving fruit storage space.

The application relates to the field of gear machining, in particular to a high-precision gear machining device and process, which comprises a workbench, a clamping fixture, a calibration assembly, a machining assembly and a transmission assembly, the clamping fixture is connected to the end face of the workbench, the transmission assembly is connected to the end face of the workbench, the machining assembly and the calibration assembly are both connected to the driving end of the transmission assembly, the calibration assembly comprises a calibration bench and a calibration table, the calibration bench is connected to the driving end of the transmission assembly, the calibration table is connected to the end face of the calibration bench, and a controller is connected between the calibration table and the transmission assembly; when the flatness of the gear end face measured by the calibration table is less than a preset value, the controller drives the transmission assembly to drive the machining assembly to approach the clamping fixture. In the application, the calibration table and the controller are arranged, separation of defective products and qualified products is realized, a worker does not need to hold a detection device to detect the flatness of the gear end face, the machining steps of gear machining are reduced, the work burden of the worker is reduced, and the machining cost of the gear is reduced.

The utility model provides a kind of vacuum pump cooling mechanism, including rotor chamber, its both ends are open, and the outer surface of rotor chamber is equipped with two symmetrical arrangement air outlet, and the outer surface top of rotor chamber is equipped with air inlet;The rotor chamber is equipped with rotor cavity, and the channel for circulating cooling water is formed between rotor cavity and the inner wall of rotor chamber, and the both ends of rotor cavity are equipped with the rim that is connected with the fixed rotor cavity, and the rim is installed in the rotor chamber, and the air inlet, air outlet are all through channel and with the inside space of rotor chamber is communicated;One side of the air outlet is equipped with water inlet pipe, and the water inlet pipe is connected with the fixed rotor chamber, and the water inlet pipe is connected with channel;The outer surface top of rotor chamber is equipped with return pipe, and the return pipe is connected with channel, and the utility model has the following beneficial effects: reduce the production difficulty and processing cost of rotor chamber.

The utility model discloses an alloy pipe surface corrosion-resistant treatment device, which relates to the technical field of alloy pipe processing, and comprises a treatment box body and supporting legs arranged at the bottom of the treatment box body, and further comprises a spraying assembly, a drying assembly, a transmission assembly and a stirring assembly. According to the utility model, the treatment liquid is uniformly sprayed on the surface of the alloy pipe through the spraying assembly, so that compared with a traditional soaking mode, the treatment liquid can be fully and uniformly contacted with the surface of the pipe, the uniformity of corrosion-resistant treatment on the surface of the alloy pipe is effectively improved, and the overall corrosion resistance is improved; the drying assembly of the equipment can enable hot air flow to continuously act on the alloy pipe through the fan, so that residual treatment liquid on the surface of the alloy pipe is quickly blow-dried, and adverse effects of the residual treatment liquid on subsequent processing and use are avoided.

The invention relates to the technical field of roll-dividing equipment, and particularly discloses a roll-dividing machine for an ultrathin narrow steel strip, which comprises a rack and further comprises an unwinding unit arranged on the rack, and the unwinding unit is used for unwinding the steel strip; the braking unit is used for making contact with the released steel belt and detecting whether the steel belt exists or not, and when it is detected that no steel belt exists, the unwinding unit is controlled to be braked; the burr scraping unit is used for scraping burrs on the two sides of the steel strip; the chip removing unit comprises a blowing pipe, and the blowing pipe is used for blowing air flow; the tension adjusting unit is used for adjusting the winding tension of the steel belt; and the rolling unit is used for rolling the steel belt. Burrs and chippings can be effectively removed, and it is guaranteed that the edge of the steel belt is smooth and the surface is clean.

A small-radius curve joint insulation device with guard rails comprises a spacer block lapped between two butt-joint steel rail interfaces, an insulation inner clamping plate is arranged between the spacer block and a steel rail, an insulation outer clamping plate opposite to the insulation inner clamping plate is arranged on the outer side of the steel rail, and a spacer piece is arranged between the butt-joint steel rail interfaces; the I-shaped section insulation is combined with the spacer block and the groove-shaped insulation, so that the problems of pulling deformation and insulation failure caused by uneven stress of double-section insulation are solved; the insulation assembly can be better attached to a track structure, stress is effectively dispersed, the impact resistance is improved, long-term stable operation is ensured, and the requirements of high-load and high-frequency train operation are met. According to the device, the mechanical strength of the insulation assembly is improved, the problems of deformation and aging caused by long-term use are reduced, the service life of equipment is prolonged, the stability and reliability of a track circuit are further improved, and safe and efficient operation of railway transportation is ensured.

The utility model discloses a kind of high-precision stable machining clamps, including clamp main body, the periphery of clamp main body is connected with locking lever, the bottom end of clamp main body is connected with base, the both sides of locking lever are fixedly connected with auxiliary block, the inside bottom end of locking lever is provided with inner chamber, the inside screw thread connection of locking lever has locking screw rod, the utility model relates to machining clamp technical field;The high-precision stable machining clamp, by rotating bidirectional screw rod, clamping plate moves relatively in the range of sliding slot, so that sliding slot can be clamped and fixed to different size workpieces, by the setting of rubber pad, the friction between clamping plate and workpiece is increased, clamping is more stable, by the setting of locking lever, bidirectional screw rod can be locked, prevent loosening during processing bidirectional screw rod, cause the clamping force of workpiece to decrease, make workpiece loosen, affect processing quality.

The application relates to the field of artificial intelligence and power equipment operation and maintenance data processing technology, and particularly discloses a power energy storage operation and maintenance health evaluation method based on deep learning, which comprises the following steps: a pre-processing unit first performs caliber unification according to a historical caliber change set and extracts single data in real time, eliminates equipment differences, makes the algorithm identify only one set of caliber, and reduces special cases and error sources; an edge gateway performs clock consistency test, aligns the time axis, and avoids wrong time misjudgment; if the test fails, the data is improved and data reliability is output, and the caliber change set is rewritten and corrected; then, the data and the reliability are sent to a model to perform health evaluation and physical consistency verification, and the correlation is improved to be explainable physical reliability; finally, the evaluation result is mapped to a standardized operation and maintenance disposal suggestion, and the operation and maintenance plan is synchronized to a platform; the standardized action and plan are synchronized to realize a closed loop of diagnosis, disposal and recovery, and the whole process is auditable and reproducible.

The application discloses an active circuit breaker assembly, a motor controller, an electric assembly and a vehicle. The active circuit breaker assembly comprises a first conductive sheet and an initiating device. A first side of the first conductive sheet is provided with a first gap and a second gap. The first conductive sheet forms a first necking section corresponding to the first gap and a second necking section corresponding to the second gap. The initiating device has a punch for impacting the first necking section and a connecting section, so that the first necking section is fractured, and the second necking section serves as a rotation fulcrum of the connecting section. The size of the first gap in a first direction is greater than the thickness of the first necking section in a third direction, and the first direction, the second direction and the third direction intersect with each other. By optimizing the structural design of the first conductive sheet and cooperating with the impact of the punch on the first necking section and the connecting section, the process requirement of blanking forming is met while ensuring reliable disconnection of the first conductive sheet, the machining process is reduced, and the production cost is reduced.

The application discloses an insect exoskeleton morphological layup composite panel, a sandwich structure and a preparation method. The sandwich structure comprises two pieces of bionic layup composite panels and a piece of aramid honeycomb core layer. The bionic layup composite panel draws lessons from the spiral stacking microstructure of the insect exoskeleton, the layup design considers the symmetry and balance requirements of the composite material, a fixed rotation angle is introduced between adjacent fiber layers, and the rotation angle is taken as a period of 180 degrees, and after a plurality of periods are laid and heat-pressed and cured, the bionic layup composite panel is obtained. The bionic layup design effectively reduces the interlaminar shear stress of the composite material, weakens the inherent anisotropy of the composite material, and improves the transverse bearing capacity and impact resistance. The bionic layup composite panel and the aramid honeycomb core layer have the advantages of high specific strength, high specific stiffness, impact energy absorption, vibration and noise reduction, electromagnetic shielding and the like, and a structure and function integrated material with more excellent comprehensive performance is obtained, and the structure and function integrated material is expected to be widely used in main load-bearing structures of various spacecrafts.

This invention relates to the field of polymer materials technology, and discloses a polypropylene foamed bead, a molded polypropylene foamed bead, its preparation method, and its application. The polypropylene foamed beads are obtained by foaming a foaming composition containing polypropylene microparticles; the average particle size of the polypropylene microparticles is ≤1 mm, the aspect ratio of the polypropylene microparticles is ≤1.2, the ash content is ≤400 ppm, and the bulk density is >0.35 g / cm³. 3 The polypropylene foam beads have a particle size of less than 1 mm, a bulk ratio to apparent size ratio of ≤1.6, and a closed-cell rate of ≥99%. This significantly reduces energy consumption during foam bead molding, and the foam bead molded bodies prepared from these beads exhibit superior appearance, mechanical properties, and thermal insulation properties. The shrinkage rate of the polypropylene foam bead molded bodies is less than 1.5%. This is particularly advantageous for preparing thin-walled or complex-shaped EPP molded products.

The application discloses a chamfering device with a tool entanglement prevention mechanism for bolt machining, and belongs to the technical field of bolt machining. The chamfering device with the tool entanglement prevention mechanism for bolt machining comprises a base and a sliding seat fixedly installed on the surface of the base, a bolt body to be machined is placed above the sliding seat, the surface of the sliding seat is correspondingly provided with two sliding frames, the top surface of any one of the two sliding frames is fixedly provided with a fixing frame, the inner side surface of each of the two fixing frames is rotationally connected with a rotating column, and the surface of each of the two rotating columns is provided with an external thread. Compared with a traditional chamfering device, the chamfering device with the tool entanglement prevention mechanism for bolt machining adopts reciprocating rotary chamfering blades to simultaneously chamfer both ends of the bolt body, and the bolt ends do not need to be sequentially machined one by one, so that the machining steps of the bolt body are reduced, the machining speed of both ends of the bolt body is improved, and the machining efficiency of the bolt body is improved.

The utility model relates to the field of molds, in particular to a film mold which comprises a mold head and a material injection seat connected to the mold head, the mold head is provided with a cavity, at least two material injection openings are formed in the end face of the mold head at intervals, a plurality of guide runners are formed in the inner walls of the material injection openings at intervals, and feeding openings are formed in the surface, facing the material injection openings, of the material injection seat in a one-to-one correspondence mode. A sizing material sequentially passes through the feeding port and the injection port and enters the cavity from the guide runner, a discharging port is formed in the end face, away from the injection base, of the die head and communicates with the cavity, and the sizing material in the cavity is extruded through the discharging port to form a film. Through the arrangement of the guide runner, sizing materials with two colors are sequentially distributed in the cavity in a staggered mode, the sizing materials in the cavity are extruded out through the discharging port to form zebra-shaped films with the two colors arranged in a staggered mode, the films do not need to be subjected to color printing coloring any more, the film processing steps are reduced, the film processing period is shortened, and the production efficiency is improved. Therefore, the processing cost of the film is reduced.

The invention discloses a four-door two-cover flexible trimming die switching system, and relates to the technical field of automobile manufacturing equipment.The four-door two-cover flexible trimming die switching system comprises a lightweight trimming die unit and a switching mounting base, and the lightweight trimming die unit is detachably mounted on the switching mounting base through a robot grabbing device; the bottom of the light-weight edge rolling die unit is provided with a gun changing disc butt joint part, and the switching installation base is provided with an electric quick-plug device and a positioning locking device which are matched with the gun changing disc butt joint part. According to the invention, a split type framework of the lightweight trimming die unit and the switching mounting base is adopted, and a full-automatic die switching system is constructed through a robot automatic grabbing and gun changing disc rapid butt joint technology. A gun replacing disc butt joint part arranged at the bottom of the die body, an electric quick-plug device of the base and a positioning locking device form a standard interface, and a robot is matched for accurate grabbing and positioning, so that the die replacing process is optimized from traditional manual hoisting calibration to machine autonomous recognition butt joint.

The utility model discloses a honeycomb paperboard flattening device, which relates to the technical field of honeycomb paperboard flattening and comprises a support plate, a support frame is fixedly mounted on the upper surface of the support plate, a transverse plate is mounted in the support frame in a sliding manner, movable plates are mounted on two sides of the lower surface of the transverse plate in a sliding manner, and a rolling shaft is detachably mounted between the two movable plates. The outer surface of the rolling shaft is in movable contact with the honeycomb paperboard; connecting frames are fixedly mounted at the two ends of the two sides of the transverse plate, mounting plates are fixedly mounted on the lower surfaces of the two connecting frames on the same side, moving strips are slidably mounted on the upper side and the lower side of each mounting plate, a cleaning plate is detachably mounted between the moving strips, and the side face, away from the corresponding mounting plate, of each cleaning plate makes movable contact with the outer surface of the corresponding rolling shaft; the cleaning plate is arranged to wipe the outer surface of the rolling shaft, and the situation that glue is attached to the outer surface of the rolling shaft, and follow-up machining is affected is avoided.

The application discloses a flattening and cutting device for cable bridge plate processing, and particularly relates to the technical field of cable bridge plate cutting, which comprises a mounting structure, a conveying and flattening structure is arranged in the mounting structure, a cleaning structure is arranged above the inside of the mounting structure, the cleaning structure can polish and clean the burrs of the plate cutout simultaneously when the plate is cut, and the metal scraps generated during cutting can be timely sucked and collected, so that a cleaning process is not needed after cutting, the additional processing steps are reduced, the labor amount of workers is reduced, the metal scraps are effectively prevented from remaining on the surface of the plate or the conveying structure, the plate is prevented from being scratched by the remaining scraps during conveying, the processing quality of the plate product is ensured, the plate can be rolled and flattened twice before and after cutting through the conveying and flattening structure, and the local warping and deformation of the plate after cutting is effectively avoided.

This invention relates to the field of polymer materials technology, and more particularly to a hydroxyl-terminated polyarylene ether and its preparation method. The preparation method of the hydroxyl-terminated polyarylene ether of this invention includes: preparing a monomer solution containing 2,6-dimethylphenol and tetramethylbisphenol; polymerizing the monomer solution with an oxidant; adding a chelating agent aqueous solution to quench the polymerization reaction after the polymerization is completed; washing the obtained hydroxyl-terminated polyarylene ether solution with the washing wastewater generated during the production of thermosetting capped polyarylene ethers; allowing it to stand; and separating the solutions to obtain the hydroxyl-terminated polyarylene ether. This invention's method for preparing hydroxyl-terminated polyarylene ethers utilizes a large amount of washing wastewater generated during the production of thermosetting capped polyarylene ethers to wash the hydroxyl-terminated polyarylene ethers, which can effectively remove amine substances, save wastewater treatment steps, achieve resource utilization, and improve the thermal properties of the hydroxyl-terminated polyarylene ethers.

The utility model discloses a furniture production trepanning and polishing device, including work table, the top one side of work table is provided with the support, and the top one side of support is provided with the sliding mechanism, and the bottom of sliding mechanism is provided with electric telescopic handle, the bottom of electric telescopic handle is provided with the adjusting mechanism, and the bottom inboard of support is provided with cleaning component, wherein, the adjusting mechanism includes the adjusting frame of setting in the bottom of electric telescopic handle, and the bottom fixed mounting of electric telescopic handle has the rotating block, and the inside bottom side of adjusting frame is installed the connecting block in the symmetry, and the inside fixed mounting of rotating block has the rotating rod, can realize the effect of quick adjustment to the plate material and carry out the drilling and polishing to the plate material, can greatly improve the device use range, reduce the step of staff to furniture plate processing, improve furniture plate processing efficiency, bring the convenience to staff when using.

The application provides a method and a die for realizing heading forming of a fastener head structure, and comprises the following steps: adopting the die to perform one-time heading on the fastener head structure to obtain a rough heading head type; and adopting the die to perform two-time heading on the rough heading head type to obtain a fine heading head type.The application has the beneficial effects that: the product size consistency is good; the new forming method is adopted, the product head type is replaced by heading instead of turning, the influences of unstable clamping, tool wear and unstable personnel operation during turning are avoided, the product processing process is stable, and the size consistency is good; the material utilization rate is high; the product head type is replaced by heading instead of turning, the head type size is directly formed by heading, the original turning head type condition is avoided, and the material utilization rate is improved from less than 80% to 100%.

The invention relates to the technical field of forming equipment, in particular to storage battery conducting strip forming processing equipment and a forming process thereof, and the storage battery conducting strip forming processing equipment comprises a pressing mold structure and a supporting mold structure which are distributed up and down; the die pressing structure comprises a die pressing table, a spherical die groove is formed in the middle of the bottom of the die pressing table, a punching rod vertically penetrates through the middle of the die pressing table in a sliding mode, inclined plates are arranged on the front side wall and the rear side wall of the die pressing table, and two transverse columns are transversely arranged on the die pressing table and distributed front and back. The conducting strip is molded into a specified shape by adopting a continuous processing and one-step molding mode, so that the processing steps can be greatly reduced, the processing complexity of the conducting strip is reduced, the rapid molding processing mode is realized, the processing efficiency is effectively improved, the processing mode is simplified, and the production cost is reduced. And moreover, the cost input and the manpower input which are required to be matched with a plurality of devices for processing in the traditional mode are saved.

The utility model discloses a kind of metalized film for high-voltage dry-type direct-current support capacitor, metalized film is mainly composed of first layer metalized film, second layer metalized film, first layer metalized film is composed of first base film, first evaporation layer.Second layer metalized film is composed of second base film, second evaporation layer, first evaporation layer is composed of first edge thickening area, first active area, second active area, first intermediate screen belt, third active area, fourth active area, second edge thickening area, second evaporation layer is composed of first edge screen belt, fifth active area, sixth active area, seventh active area, second intermediate screen belt, eighth active area, second edge screen belt.The utility model is simple in structure, and in terms of manufacture, can satisfy high-voltage direct-current support capacitor high long-term safe and reliable operation.

A photosensitive drum can be detachably installed to an image forming device host, the image forming device host includes a first printer driving transmission gear and a second printer driving transmission gear which can rotate coaxially, the photosensitive drum includes a photosensitive component, a photosensitive drum gear, a ring-shaped elastic body which is arranged between the photosensitive component and the photosensitive drum gear along a rotation axis of the photosensitive component, the photosensitive drum gear and the ring-shaped elastic body can rotate in a state that the photosensitive drum gear is meshingly engaged with the first printer driving transmission gear and the ring-shaped elastic body is in contact with the second printer driving transmission gear. The utility model only sets up a photosensitive drum gear on the photosensitive drum, and replaces a photosensitive drum gear by the ring-shaped elastic body, which significantly reduces the design, processing and production difficulty of the photosensitive drum, and further reduces the production cost of the photosensitive drum.

This utility model discloses a high-precision metal stamping die processing device, belonging to the field of stamping dies. The high-precision metal stamping die processing device includes a processing table, a hydraulic telescopic rod fixedly installed at the top of the processing table, a top platform fixedly installed at the top of the hydraulic telescopic rod, a stamping rod fixedly installed in the middle of the bottom surface of the top platform, a stamping table fixedly installed on the top surface of the processing table, a guide pipe fixedly connected to the outer wall of the processing table, a crushing device fixedly installed below the guide pipe on the outer wall of the processing table, a stamping hole opened in the middle of the stamping table, and a motor fixedly installed on the back of the processing table. The output shaft of the motor is fixedly sleeved with a connecting shaft. It can achieve the guiding and transport of waste materials without stopping the stamping equipment, and automatically crush the materials outside the machine body, thus achieving the effect of improving production efficiency without stopping the machine, and reducing subsequent waste handling steps, effectively improving the overall practicality of the equipment.

The utility model relates to the technical field of machine manufacturing and machining, in particular to a surface grinding machine with a cooling function. The surface grinding machine with the cooling function comprises a workbench, a first electric sliding rail, a sliding block, a containing frame, a water outlet pipe, a magnetic bed, a first supporting plate and the like, the first electric sliding rail is installed on the upper side of the workbench, the sliding block is connected to the first electric sliding rail in a sliding mode, and the containing frame is connected to the upper side of the sliding block. Water outlet pipes are connected to the outer side of the containing frame in a bilateral symmetry mode, a magnetic bed is connected into the containing frame, and a first supporting plate is connected to the rear side of the workbench. Through the design of the two refrigerators, the two refrigerators rapidly cool water in the two water tanks, and it is ensured that the cooled water is always kept at the proper temperature; and through the arrangement of two second water pumps and two water spraying pipes, cooled water is promoted to be accurately sprayed to the surface of the grinding wheel through the two water spraying pipes, and grinding wheel abrasion or machined part surface damage caused by high temperature is effectively prevented.

The utility model relates to a vehicle-mounted angle sensor mounting structure and a vehicle-mounted angle sensor assembly. The vehicle-mounted angle sensor mounting structure comprises a first shell unit, a second shell unit, a mounting unit and a plurality of buckle units. The utility model has the advantages that the first shell unit and the second shell unit are connected through the buckle unit, so that the product assembly benefit is increased, the processing procedures are reduced (the cost is reduced), and the first shell unit and the second shell unit can be well assembled without the phenomenon of screwing during assembly; besides, by adding the protection element, the angle sensor can be sealed under the condition that the angle sensor is fixed on the mounting element, so that the phenomenon that glue exists on the chip during glue pouring can be completely solved, and the performance of the product can be better exerted.

The utility model relates to mechanical engineering technical field, and disclose a kind of auxiliary feeding device for hardware machining, including base, the inside bottom end of base is equipped with conveyor belt body, the upper end of inside base is fixed with fixed block, and the lower end of fixed block is equipped with stepper motor, and the output of stepper motor is connected with rotating column through bearing sleeve, and one end of fixed block is slidably engaged with first adjusting plate. The utility model is rotated by starting stepper motor and driving rotating column, so that first adjusting plate and second adjusting plate move in opposite directions, when the surface of the lower end of first adjusting plate is attached to the surface of the upper end of conveyor belt body, the position of hardware can be adjusted, to avoid the friction and extrusion between hardware caused by too much hardware, to a certain extent, improve the working efficiency of equipment.

The utility model relates to a device for connecting a copper-tile-imitating mould plate and an inhaul cable. The fixture comprises a connecting rod, two ends of the connecting rod are respectively provided with a clamping plate, the middle of the connecting rod is provided with an inhaul cable via hole through which the inhaul cable can penetrate, the end parts of the clamping plates are provided with holes, the end parts of the copper-tile-imitating mould plate extend into the clamping plates, and the copper-tile-imitating mould plate is provided with connecting holes corresponding to the holes. And the imitation copper tile mould plate is movably connected with the clamping plates through the connecting holes and the holes. According to the utility model, the universality of the clamp is effectively improved, the component processing is simplified, and the construction quality and durability of the imitation copper tile mould plate are improved.

The utility model relates to the technical field of welding tools, in particular to a floor machine counterweight arm welding device which comprises a support, a panel, a positioning shaft, a positioning bolt and a quick pressing clamp. The panel is rotationally connected with the support through a connecting shaft, flange plates are arranged at the two ends of the panel, and the flange plates and the support are detachably fixed through fixing bolts. The positioning shaft is vertically fixed on the panel and is used for positioning the shaft sleeve; the positioning bolt is fixed on the surface of the panel and is matched with the through hole in the bottom of the counterweight arm; and the two groups of quick pressing pincers are respectively used for pressing the shaft sleeve and the counterweight arm. According to the welding tool, accurate assembly of the shaft sleeve and the counterweight arm is ensured through a mechanical positioning structure, manual splicing errors are effectively avoided, and the size of a welded workpiece directly meets the design requirement.

The utility model discloses a screening device for a bale opener, which belongs to the technical field of bale openers and comprises a mounting rack, a protective cover is fixedly mounted on the side wall of the mounting rack, a mounting cover is fixedly mounted on the side wall of the protective cover, and a driving motor is fixedly mounted on the inner wall of the mounting cover. Dust falling assemblies are arranged on the two side walls of the mounting frame; according to the dust falling device, the dust falling assembly is arranged, along with rotation of the driving disc, under the action of the movable rod, the piston plate is driven by the mounting clamp to move back and forth in the piston barrel, water in the water tank is sucked into the piston barrel through the water inlet pipe, then is conveyed into the water spraying pipe through the water outlet pipe and is sprayed to the periphery of the mounting frame through the water spraying holes; according to the bale opener, dust generated in the material screening process is subjected to dust falling treatment, the pollution degree of the dust generated in the bale opening process to the working environment is reduced, the freshness of air in the working environment is ensured, the influence of the dust on operators and machines is further reduced, and the service life of the bale opener is prolonged.