3649 results about "Shovel" patented technology

The invention belongs to the technical field of trajectory planning, and provides an electric shovel unmanned mining method and system based on digital twinning in order to solve the problem that the design of an electric shovel unmanned mining trajectory is difficult to deal with a complex heap surface, and the method comprises the following steps: obtaining sensing data, a historical mining trajectory and historical heap surface point cloud data; an electric shovel unmanned mining digital twin system is constructed based on the sensing data; uploading the historical mining trajectory and the historical heap surface point cloud data to a central database, and training by using generative artificial intelligence to obtain prediction trajectories suitable for different mine fields; constructing an agent model by using a neural network, calculating to obtain a predicted fullness rate, and performing simulated excavation according to the predicted fullness rate and the predicted trajectory to obtain electric shovel excavation control data; according to the method, deep reinforcement learning is utilized, the electric shovel unmanned excavation track is generated based on the electric shovel excavation control data, the electric shovel is controlled to conduct unmanned excavation in real time, the safety of the excavation process is guaranteed, and the track control precision of the electric shovel is also improved.

A shovel includes a lower traveling body, an upper turning body turnably mounted on the lower traveling body, a surroundings monitoring device attached to the upper turning body, and a controller configured to identify the state of an object based on the output of the surroundings monitoring device.

The invention relates to the technical field of deep-sea mining, and discloses an extrusion rotary type deep-sea multi-metal nodule low-disturbance collecting device which comprises a set of skid mechanisms formed by all-terrain skid plates arranged side by side, all-terrain skid plates are connected with direction skid through steering pull rods, each skid mechanism is provided with a grating storage cabin, and the grating storage cabins are connected with the all-terrain skid plates through steering pull rods. The inlet end of each grid storage bin is connected with a grid pressing shovel installed on the skid mechanism through a rotary collecting head. According to the invention, the all-terrain skid plates are used as walking mechanisms, so that low-disturbance advancing can be realized on one hand when the multi-metal nodules are collected by walking, and on the other hand, the advancing direction and operation attitude can be adjusted in real time by the cooperation of the multiple groups of all-terrain skid plates, so as to meet different collection requirements of the multi-metal nodules; meanwhile, a combined structure of the grating pressing shovel, the rotary collection head and the grating storage cabin is taken as a core, so that the multi-metal nodule in a buried or semi-buried state can be shoveled up in a low-disturbance manner, and environment-friendly collection is realized.

A coal mill feeding device comprises: a screening assembly comprising a box, a feeding port formed at the top of the box, a discharge port formed at the bottom of the box, a screen plate and a receiving plate both arranged inside the box, and a plurality of screen holes provided in the screen plate; a drive assembly; and a feeding assembly. To ensure the uniformity of pulverized coal, the screening assembly is provided to perform coarse and fine screening on mixed coal briquettes, which enables batch feeding of the coal briquettes into the coal mill for grinding, thereby facilitating subsequent control of the grinding roller pressure and grinding duration based on the specific conditions of the coal briquettes. When an electric motor is activated, the screen plate performs screening while a barrier plate is lifted to effectively prevent the coal briquettes from splashing. After the screening is completed, a first air cylinder can be activated to drive a first push shovel to push the coarse coal for grinding, and at this point, the barrier plate is lowered to facilitate a material guide plate conveying the coal briquettes. After the grinding of the coarse coal is completed, a second air cylinder is activated to drive a second push shovel to push the fine coal for grinding.

The present subject matter provides a shovel configured to attach to a distal edge of an endoscope and protrude from a lower part of the distal edge, and an endoscope comprising the shovel attached to a distal edge of the endoscope. Additional embodiments of the shovel and the endoscope comprising the shovel are disclosed herein.

A root tuber type traditional Chinese medicinal material harvester comprises a harvesting assembly, a rack, a separating assembly and a material collecting assembly, the harvesting assembly comprises a scraper knife part, and the movement track and the inclination angle of the scraper knife part can be adjusted; the rack comprises an upper rack and a lower rack, and a containing cavity is formed between the upper rack and the lower rack and used for containing the separation assembly; the separation assembly comprises a first separation mechanism and a second separation mechanism which are obliquely arranged from back to top and are staggered; the first separation mechanism comprises a screen mechanism, a crushing wheel assembly and a hydraulic cylinder, the distance between the crushing wheel assembly and the screen mechanism can be adjusted, and the hydraulic cylinder can lift the first separation mechanism. The whole structure and arrangement of the digging shovel, the separation assembly and the rack are optimized, so that the shovel blade part can be suitable for traditional Chinese medicine crops with different soil textures and categories; a multi-stage separation mechanism is arranged by optimizing the space of the rack, so that the separation effect is improved; the separating mechanism is obliquely arranged, the volume of the material collecting assembly is increased, the hopper can swing and dump, manual replacement is not needed, and the working efficiency is improved.

The invention relates to an inner hole back-off core-pulling mold which comprises a panel, a front mold, a rear mold, mold feet and a bottom plate which are sequentially arranged from top to bottom, a back-off mold core assembly comprises a panel shovel base fixedly arranged on the panel and a back-off mold core arranged on the side edge of the panel shovel base, and the panel shovel base comprises a transmission part stretching into an injection molding cavity. The transmission part and the back-off mold core are provided with a matching surface which forms an inclined angle with the mold opening and closing direction, and the transmission part and the back-off mold core are in sliding fit through a T-shaped groove guide structure arranged on the matching surface; by the adoption of the technical scheme, in the mold opening process, when the panel shovel base moves upwards along with the panel, the back-off mold core can be driven to slide inwards along the inclined face, so that the transverse core pulling action of inner hole back-off is achieved, meanwhile, the sliding part and the mounting groove in the bottom of the sliding part slide through the other T-shaped groove guide structure, the sliding direction of the sliding part is restrained, and the inner hole back-off effect is improved. And meanwhile, the sliding part is prevented from acting along the mold opening and closing direction relative to the front mold.

The invention discloses a method and system for detecting the bucket fullness rate of a shovel loading robot based on multi-source fusion, and belongs to the technical field of shovel loading robos.The working state of a working device at the front end of the shovel loading robot is monitored, and when it is detected that a swing mechanism of the shovel loading robot starts to work, system detection work is started; performing calibration fusion processing on the point cloud data of the 4D millimeter wave radar and the binocular vision camera to obtain high-quality bucket point cloud data; the working process between the 4D millimeter wave radar and the binocular vision camera is self-calibrated; and according to the obtained high-quality bucket point cloud data, processing and segmenting to obtain the point cloud and the fullness rate of the excavated material. The method can accurately identify the outline of the bucket and the morphology and volume of materials in the bucket, and improves the autonomous operation efficiency.

The invention provides a digging and pulling combined type ginger harvester and a working method, relates to the field of ginger harvesters, and aims to solve the problem that ginger blocks are easy to mechanically damage when ginger is harvested at present, a combined mode of digging and clamping and pulling is adopted, a digging shovel loosens soil through a rotary digging action, conditions are created for ginger seedling extraction, and then the ginger seedlings are harvested; meanwhile, through the cooperation of flexible clamping and lifting effects of the clamping conveying channels on ginger seedlings, stable extraction of the whole ginger is achieved, the situation that an excavating component directly collides with ginger blocks to cause damage is avoided, a flexible clamping space is formed through opposite arrangement of the clamping conveying chains, the ginger seedlings can be reliably fixed, the ginger blocks cannot be extruded, and therefore the ginger seedlings can be stably extracted. The floating support which is obliquely installed can adapt to field terrain fluctuation, and the stability of clamping and conveying is kept; the subsequent ginger seedlings are stably transferred through the clamping side throwing channel, falling or collision in the conveying process is avoided, and the damage risk is further reduced.

The invention discloses an excavator operation action control method and device based on bucket trajectory planning, and belongs to the technical field of engineering machinery automation. The method comprises the steps that excavator attitude sensing data and excavator environment sensing data are obtained; the excavator attitude sensing data comprises all joint angles of the excavator; according to the excavator attitude sensing data, obtaining the position and attitude of the bucket and constructing a dynamic model; the dynamic model represents a mapping relation between the bucket stress information and the bucket force output constraint information; acquiring a three-dimensional construction model according to the excavator environment sensing data; acquiring a three-dimensional deviation field according to the three-dimensional construction model and a preset building information model; planning a target construction track of the bucket according to the position and posture of the bucket, the three-dimensional deviation field and the dynamic model; and the target pose sequence of the joint space of the excavator is obtained based on the target construction track of the bucket, action control is conducted on all joints of the excavator according to the target pose sequence, and the high-precision excavator control method capable of achieving real-time adjustment according to the operation quality is achieved.

The invention relates to the technical field of mining exploration, and discloses a surface mine mining system and method based on a three-dimensional model, and the system comprises a three-dimensional modeling module which is used for fusing earth surface and deep geological data to construct a dynamic digital twinborn body, receiving environment dynamic sensing data, and calculating rock mass stress and a water flow coupling field in real time; the mining planning module is used for generating a mining step design and equipment scheduling instruction based on the lithologic parameters and stress distribution of the dynamic digital twin; the equipment control module is used for converting the equipment dispatching instruction into centimeter-level action control signals of a mine truck and an electric shovel through a low-delay communication chain; and the monitoring feedback module is used for collecting mining surface deformation and muck pile characteristic data. Through the dynamic digital twinborn body fusing earth surface centimeter-level scanning and deep quantum detection and stress and water flow coupling field real-time calculation, synchronous visualization of the rock mass mechanical state and hydrological response is achieved, full-time-domain geological perspective capacity is provided for mining decision, and mining efficiency is improved.

A shovel includes a lower traveling structure, an upper swing structure, a non-volatile storage device, an information obtaining device that obtains information related to construction, and a controller that controls a sound output device. The controller is configured to determine a dangerous situation based on information obtained by the information obtaining device. The shovel may be configured to display information on a display device related to the dangerous situation determined to occur.

The invention discloses a low-resistance deep-scarification fertilizer spreader for saline-alkali soil based on self-adaptive control, and provides an innovative scheme aiming at the problems of soil hardening, non-uniform application of a modifier, low operation efficiency and the like. The whole machine comprises a rack, a modifier box, a double-row shovel, a multi-leaf discharger and an intelligent control system. A front row of shovels and a rear row of shovels are designed, a front triangular shovel reduces tillage resistance through wedge-shaped splitting, a rear subsoiler cuts off soil capillary tubes, a discharging pipe is arranged in the rear subsoiler, and deep and accurate throwing of an improver is achieved; 2, PID parameters are optimized based on an improved genetic algorithm, closed-loop control and low-pass filtering noise reduction are combined, a self-adaptive control system is constructed, and the discharging amount and the advancing speed are dynamically matched; the soil pressing roller and the shovel are designed cooperatively, the whole process of soil breaking, deep scarification, agent applying and pressing is completed at a time, and efficiency is improved. Through a low-resistance structure, intelligent control and integrated operation, the equipment breaks a hardened layer, inhibits salt from moving upwards, improves the utilization rate of an improver, has the characteristics of high efficiency, low consumption and ecological protection, and meets the treatment requirements of saline-alkali soil.

This invention relates to a device and method for in-situ detection of seeding spacing and depth based on magnetic field induction, belonging to the field of intelligent agricultural machinery equipment technology. It includes a mounting base at the rear end of a precision seeder, a vertical rod mounted on the mounting base, and a cutting shovel at the lower end of the vertical rod. The cutting shovel has two opposing cutting plates, and the opposing sides of the two cutting plates are respectively equipped with multi-dimensional high-precision magnetic sensing modules for detecting magnetic induction intensity information. It also includes a controller and a GPS wireless speed measuring device. The GPS wireless speed measuring device is used to measure the real-time operating speed of the precision seeder. The controller is electrically connected to both the GPS wireless speed measuring device and the multi-dimensional high-precision magnetic sensing modules. This application can solve the problems of current methods for detecting seeding spacing and depth after sowing operations, which rely on manual labor, have poor detection accuracy, and low detection efficiency.

The utility model discloses a shoveling and milling compound machine which comprises a machine frame, a machining stand column mechanism, a workbench and a moving mechanism, and the machining stand column mechanism is provided with a machining main shaft, a shovel blade assembly and a tool magazine mechanism; the moving mechanism is provided with a clamping platform, and the clamping platform is provided with a turnover mechanism. The clamping platform comprises a base, a clamp mechanism and a bridge plate. The scraper knife assembly is arranged behind the machining main shaft and used for providing the scraper knife function, so that the tooth relieving machining action is conducted on a machined workpiece, functionality is improved, the machined workpiece does not need to be detached and replaced with another device to be machined, time is saved, and the machining efficiency of the machined workpiece is improved; by arranging the clamping platform with the turnover mechanism, angle adjustment of the machined workpiece is achieved, the stability of angle adjustment is guaranteed, the jig does not need to be replaced, and the machining efficiency is improved.

A shovel includes a lower traveling body, an upper turning body turnably mounted on the lower traveling body, an attachment including a boom attached to the upper turning body, an arm attached to an end of the boom, and an end attachment attached to an end of the arm, wherein a motion of the arm or the end attachment is corrected according to a stability of a body of the shovel.

The invention relates to the technical field of rail laying, in particular to a sleeper laying device for rail transit, which comprises a rail and a sleeper body, and further comprises a plurality of ballast poking plates, and the plurality of ballast poking plates are arranged below the sleeper body. A plurality of ballast poking plates are automatically driven to move through the ballast poking assembly, railway ballast below a sleeper body can be rapidly and efficiently poked aside and poked out, an old sleeper is made to be suspended, the speed is much higher than that of pure manual ballast poking through tools such as shovels, the replacement time of a single sleeper is remarkably shortened, the shorter skylight period is provided for line maintenance, and the production efficiency is improved. The whole process is mainly completed by a mechanical device, operators only need to control equipment, physical output of workers is greatly reduced, the workers are prevented from carrying out high-strength repeated excavation and prying operation between the position below heavy sleepers and rails, safety risks such as muscle strain and collision injury are reduced, and operation safety is improved.

The invention relates to the field of cranes, in particular to a crane traveling wheel set with a track cleaning function, which comprises a track frame and a traveling wheel set arranged on the track frame, a retracting part is arranged at the front part of the upper end of the traveling wheel set, and the end part of the retracting part is connected with a lubricating oil tank; two brush bodies are symmetrically and obliquely installed at the lower end of the lubricating oil tank, the ends of the brush bodies are attached to the rail frame, a plurality of oil outlet holes are formed in the position, between the two brush bodies, of the lower end of the lubricating oil tank in a linear array penetrating mode, and a V-shaped shovel head is fixedly installed on the lower portion of the front end of the lubricating oil tank and attached to the rail frame. The labor intensity of workers is reduced, the working efficiency is improved, meanwhile, the phenomena that a V-shaped shovel head damages a lubricating oil layer and lubricating oil is continuously discharged to cause waste are avoided, and the phenomenon that the lubricating oil is polluted when the brush body is used for smearing is prevented.

The invention discloses a multi-degree-of-freedom programmable deep scarification mechanism and a control method thereof, belongs to the technical field of agricultural machinery, and aims at solving the problems that an existing deep scarification machine tool is fixed in movement track, single in operation mode, lack of multi-dimensional space movement capacity and lack of an intelligent closed-loop control system and the like. The mechanism comprises an initial pitching adjusting mechanism, a transverse translation mechanism, an operation depth adjusting mechanism, a posture fine adjusting mechanism, a shovel body rotating mechanism and a control system, and all the mechanisms are in hierarchical connection to form a collaborative operation system. The initial pitching adjusting mechanism is connected with the transverse translation mechanism, and the operation depth adjusting mechanism is connected below the transverse translation mechanism and can adjust the mechanism position and the tilling depth; the posture fine adjustment mechanism is of a four-hydraulic-cylinder space parallel connection structure and can drive the subsoiler to achieve multi-dimensional posture adjustment in cooperation with the shovel body rotating mechanism. The operation mode of the subsoiler can be programmable and reconstructed, the subsoiler can adapt to a complex soil environment, the traction resistance is reduced, the soil crushing quality and the operation precision are improved, and support is provided for precision agriculture.

1. The name of the design product: cleaning shovel for pet toilet. 2. The use of the design product: for cleaning pet toilet. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The invention discloses a strip mine surface soil excavation bucket with a screening structure, the strip mine surface soil excavation bucket comprises an excavation screening structure, one side of the excavation screening structure is fixedly provided with an opening and closing adjusting structure, and the excavation screening structure comprises a knocking screening assembly for installing an excavation covering assembly; the knocking and screening assembly comprises a bucket body with a through groove in the rear side, meanwhile, a concave frame with a through groove in the lower portion is fixedly installed on the rear side of the bucket body in a welded mode, a sliding groove facilitating sliding arrangement of opening and closing structure parts is formed in the inner side of the concave frame, and digging shovel teeth are fixedly installed on one side of the bucket body; a groove strip with a sliding groove formed in the inner side is fixedly installed at the bottom of the bucket body in a welded mode, meanwhile, a connecting threaded hole is formed in the upper portion of the inner side of the groove strip, and a matched strip is arranged in the groove strip in a sliding mode through the sliding groove. And the concave frame is arranged, so that the inner side opening and welding fixing effects are achieved.

The application discloses a kind of building engineering template support strength detection equipment, belong to template strength detection technical field, including detection table and rack, the top of detection table is provided with support frame and turnover mechanism, turnover mechanism is used to drive support frame overturning;It also includes the moving mechanism and guide mechanism being set in rack, lifting frame is set on moving mechanism.The application is integrated with vibration mechanism by setting cleaning mechanism on lifting frame, can automatically clean template surface before strength detection;Cleaning shovel is driven under the vibration mechanism, and the template surface is flexibly and slightly high-frequency spliced and vibrated, effectively removes cement block and other sundries on the surface of wooden template, avoids template surface being pressed in subsequent pressure detection due to the existence of hard object, which protects the flatness and reuse value of template, and also ensures that support strength detection directly acts on template body, thereby significantly improving the accuracy and reliability of detection result.

A method of analysing ore, wherein the method includes, during excavation, scanning / sensing ore, by using a sensor. The sensor is located at a position which is (i) spaced from a bucket / shovel of an excavator and (ii) operatively higher relative to the bucket / shovel. The sensor is also directed towards the bucket / shovel, so that the sensor can scan / sense operatively downwardly towards / into the bucket / shovel. The sensor may be secured to, or mounted on, an excavator at a position which is spaced from a bucket / shovel of the excavator.

The invention relates to the field of agricultural machinery, and discloses a modular radix astragali harvester with a variable-spacing screen, the device comprises a main body frame, the outer wall of the main body frame is provided with a vibration mechanism, the two sides of the outer wall of the vibration mechanism are both provided with baffles, the inner walls of the baffles are fixedly connected with a separation net, and the separation net is fixedly connected with the separation mechanism. The outer wall of the vibration mechanism is fixedly connected with a connecting block, the outer wall of the connecting block is fixedly connected with a front shovel, and the outer wall of the main body frame is fixedly connected with a connecting frame. The vibration mechanism comprises a first motor, the outer wall of the first motor is fixedly connected to the outer wall of the main body frame, and the output end of the first motor is connected with a first belt wheel. Two vibration modes are provided, one mode can drive a baffle, a separation net and a front shovel to vibrate, astragalus membranaceus and soil adhered to the astragalus membranaceus can be separated while the driving resistance is reduced and the soil crushing efficiency is optimized, and the other mode can adjust the vibration amplitude by rotating a rotating handle, so that the adaptability is improved.

The invention provides a mining electric shovel working device health detection method based on multidisciplinary digital twinning, and the method comprises the steps: obtaining attitude data through employing a Latin hypercube sampling method; performing electric shovel simulation by using discrete element and finite element methods, and further obtaining a data set required for neural network training; training and testing the LSTM neural network and the RBF neural network by using the data set, and constructing a mining load prediction model and a mining stress prediction model; constructing a digital twinborn model by using a tilt angle sensor, a stay wire encoder and the virtual model; a laser radar is used for scanning the terrain, the material mass is calculated and obtained, the load and stress of data are sequentially predicted through a neural network model, the stress is transmitted to a digital twinborn model, and real-time monitoring is achieved in a color rendering mode. According to the mining electric shovel, the stress change of the working device is displayed in real time in the working process of the mining electric shovel, and the early warning capacity of the mining electric shovel when excavation exceeds the stress safety range in the complex working environment is improved.

The invention discloses a post-wheat crop sowing cotton film-free sowing and fertilizing device, and relates to the technical field of agricultural machinery, the post-wheat crop sowing cotton film-free sowing and fertilizing device comprises a connecting frame, the bottom surface of the connecting frame is provided with a plurality of groups of ditching assemblies, the top of each ditching assembly is provided with an adjusting mechanism, each ditching assembly comprises a fertilizing shovel and a seeder, and the side wall of the connecting frame is fixedly connected with a plurality of fixing frames; a water tank is installed on the fixing frame, one side of the connecting frame is connected with an external traction mechanism, and an auxiliary pipe wheel and a burying mechanism are installed on the other side of the connecting frame. The machine can realize integrated operation of ditching, fertilization, seeding, irrigation, pipe laying, soil covering and weeding, the whole process is mechanized, manual intervention is reduced, and the operation efficiency is improved; the ditching depth and width are controlled through the adjusting mechanism, so that the requirements of different soil textures and cotton varieties are met; meanwhile, the fertilization shovel and the seeder are independently designed, direct contact between fertilizer and seeds is avoided, seed burning is prevented, and the emergence rate is increased; in addition, a water outlet pipe of the water tank directly faces a sowing area, local precise irrigation is achieved, and water resource waste is reduced.

According to the mechanical gripper with the self-adaptive grabbing function, the exposed end of a piston rod is sleeved with a connecting rod base through a vertical through hole A, and the connecting rod base is fixedly connected with a cylinder barrel; the exposed end of the piston rod is fixedly sleeved with the pushing seat through a vertical through hole B, two pairs of movable seat lug plates A are symmetrically arranged at the left end and the right end of the upper portion of the pushing seat, and two movable seat lug plates B are symmetrically arranged at the left end and the right end of the lower portion of the pushing seat; the two clamping jaw mechanisms are oppositely distributed on the left side and the right side of the piston rod. The clamping jaw mechanism comprises a clamping jaw base, a plurality of elastic jaw teeth and a shovel body; the two transmission assemblies are distributed corresponding to the two clamping jaw mechanisms correspondingly. Each transmission assembly comprises a connecting frame A, a connecting frame B and a connecting frame C; each transmission assembly is connected with the corresponding connecting rod base, the corresponding pushing base and the corresponding clamping jaw mechanism on one side. The mechanical claw has the self-adaptive posture adjusting capacity, self-adaptive grabbing operation of objects in different shapes or special-shaped workpieces can be achieved under the condition that the mechanical claw is not replaced, and the grabbing operation efficiency can be remarkably improved.

The utility model discloses a rear unloading type combined electric shovel bucket which comprises a bottom plate, side plates, a top plate, a rear plate and bucket teeth, the number of the side plates is two, the two side plates are symmetrically arranged between the bottom plate and the top plate, the side plates are connected with the bottom plate through second connecting bolts, the side plates are connected with the top plate through third connecting bolts, and the rear plate is connected with the bottom plate through third connecting bolts. The bucket teeth are connected with the bottom plate through first connecting bolts, the rear plate is arranged at the lower end of a cavity defined by the bottom plate, the side plates and the top plate in a turnover mode, according to the rear discharging type combined electric shovel bucket, parts of the bucket can be conveniently replaced, overall replacement is not needed, cost is reduced, meanwhile, discharging is directly conducted through the rear end, and the discharging efficiency is greatly improved.

The invention provides soil-shoveling double-layer film-mulching rice transplanting equipment and a use method thereof, and belongs to the field of agricultural machinery. The soil-shoveling double-layer film-covering rice transplanting equipment comprises a double-layer film-covering device and a rice transplanter planting part, the double-layer film covering device comprises an upper roller body assembly, a lower roller body assembly, a main machine frame, a front shovel plate assembly and a rear laying assembly. The front shovel plate assembly shovels up soil in a field block, the soil is pushed to the position between the upper roller body assembly and the lower roller body assembly, the lower surface of an upper roller belt is covered with an upper layer film, the upper surface of a lower roller belt is covered with a lower layer film, and the upper roller body assembly and the lower roller body assembly extrude and cover a soil layer to form a double-layer film-covered soil block. The rear laying assembly is used for inserting seedlings on the double-layer film-covered soil blocks by matching the double-layer film-covered soil blocks with the transplanting part of the rice transplanter. Through constraint of the double-layer film, seedlings can be kept straight and not inclined, the situation that the transplanting effect is affected due to uneven contact between soil and the film when the field is uneven can be avoided, meanwhile, field weed growth can be prevented, and early maturation of the seedlings is promoted.

The utility model discloses a core-pulling mechanism for an injection mold, which comprises a slide, slide core-pulling inserts mounted on two sides of the outside of the slide, a shovel base groove arranged in the slide, a shovel base slidably mounted in the shovel base groove, wear-resistant blocks mounted on two sides of the bottom of the slide, and limit blocks connected to the rear sides of the wear-resistant blocks. Slide guide blocks are installed on the left side and the right side of the slide, a moving block is installed at the bottom of the slide, tooth grooves are formed in the two sides of the moving block, the two sides of the moving block are in meshed connection with a transfer gear through the tooth grooves, the transfer gear is connected with a transfer gear shaft, the other side of the transfer gear is in meshed connection with a core-pulling gear, and the core-pulling gear is connected with a core-pulling gear shaft. A core-pulling shaft sleeve is installed at the top of the core-pulling gear shaft, and a bent pipe core-pulling insert is installed at the top of the core-pulling shaft sleeve. According to the utility model, the power of bent pipe core pulling is transferred to the mold opening power of slide core pulling, and the bent pipe core pulling power and the slide core pulling power use the same power and move simultaneously, so that the mold opening period is further shortened, and the production efficiency of the mold is improved.