66results about How to "Control speed" patented technology

This invention discloses a transverse pipe conveying device, belonging to the field of pipe conveying technology. It includes a pipe conveying mechanism comprising a conveying frame, multiple conveying rollers, a roller drive mechanism, transverse conveying mechanisms disposed on one or both sides of the conveying frame, and a lifting mechanism for lifting the pipes on the conveying rollers. The transverse conveying mechanism includes a conveying arm shaft, multiple transverse conveying arms, and a rotation drive mechanism. The conveying frame is also equipped with a guide mechanism for guiding the pipes onto the transverse conveying arms. The guide mechanism includes multiple guide plates arranged along the length of the conveying frame, with the bearing surface of the guide plates inclined inwards and outwards. This invention features a compact overall layout, eliminating the need for adjustments to workshop height, reducing workshop construction costs. The pipe conveying process is stable, ensuring the safety of equipment and personnel. The pipe conveying process is simple to operate, reducing labor costs and the possibility of operational errors.

This utility model relates to the field of feed feeding technology, providing a feeding device suitable for the initial feeding of fish fry in factory-farmed aquaculture. The device includes a base, a feed storage bin, a spotlight, a conduit, a suction pump, and a particle detector. The feed storage bin is located on the base and holds the feed; the spotlight has a through-hole; the first end of the conduit connects to the feed storage bin, and the second end of the conduit connects to the spotlight through the through-hole; the suction pump is located in the conduit and is used to draw feed to the through-hole; the particle detector is located in the conduit and is used to detect the amount of feed flowing through. This utility model, by setting up a feed storage bin and a spotlight connected by a conduit, allows feed to flow through the conduit to the through-hole; the suction pump in the conduit regulates the flow rate of the feed to control the feeding speed; and the particle detector accurately detects the amount of feed flowing through, improving feeding accuracy and benefiting the fry rearing stage; it can control the feeding speed and quantity, reduce labor costs, make operation more convenient, and improve the survival rate of fry rearing.

This utility model discloses a magnetically speed-regulated pipe cleaning nozzle, comprising: a central shaft, a nozzle seat, a base, and a magnetic speed-regulating assembly. One end of the central shaft has a connecting port, and the other end is fitted with a sealing ring. The nozzle seat has several spray holes, and a sliding ring is rotatably mounted on the outer wall of the nozzle seat. The base is fitted onto the outside of the central shaft, and its outer wall is threadedly connected to a first mounting hole. The base contains a first mounting cavity and a second mounting cavity. The second mounting cavity is rotatably connected to the central shaft via several bearings. The magnetic speed-regulating assembly includes a magnetic ring, which is fixedly mounted on the central shaft. Several magnets are mounted on the magnetic ring, and a magnetic ring sheath is fitted around the magnetic ring. A copper ring is fixedly mounted on the inner wall of the first mounting cavity. This utility model can limit the nozzle's rotational speed, thereby preventing the nozzle from becoming uncontrollable due to excessive speed, and can also reduce the wear rate of the central shaft, extending the nozzle's service life.

The invention belongs to the technical field of automobile active suspension damping systems, and particularly relates to a mute stiffness valve and a control method thereof. The stiffness valve is switched from an open state to a closed state, and the plunger at least comprises a first stroke section, a second stroke section and a third stroke section; in the first stroke section, first direction current is input into the voice coil motor structure, so that the plunger is in an acceleration state; in the second stroke section, current input to the voice coil motor structure is stopped and / or second-direction current opposite to the first-direction current is input, so that the plunger is in a deceleration state; and in the third stroke section, the current in the first direction is input into the voice coil motor, so that the sealing element between the plunger and the air vent is compressed and seals the air vent. By controlling the current input into the voice coil motor structure, control over the moving direction and speed of the plunger is achieved, on the premise of quick response, the impact force generated when the plunger makes contact with the sealing support is remarkably reduced, and noise generated by impact is restrained.

This application relates to the field of flexible plate testing technology, and in particular to a flexible plate testing device, including a fixed plate, a sliding plate, a follower plate, and a driving mechanism. The top surface of the fixed plate is suitable for connection to one end of the flexible plate. The top surface of the follower plate, at the end away from the sliding plate, is suitable for connection to the other end of the flexible plate. The driving mechanism is connected to the sliding plate and is used to drive the sliding plate to perform linear reciprocating motion, thereby driving the follower plate to perform linear reciprocating motion. During this process, the position of the crease in the middle of the flexible plate continuously changes. The fixed plate, sliding plate, and follower plate cooperate with each other to realistically simulate the bending and stretching states of the flexible plate in actual use. The gap between the top surface of the fixed plate and the bottom surface of the follower plate can be adjusted according to the thickness and bending radius of the flexible plate being measured to meet the testing requirements of various working conditions, greatly improving versatility.

The invention relates to a constructional engineering material conveying device, and relates to the technical field of conveying devices, the constructional engineering material conveying device comprises a conveying pipe, a material distributing structure is mounted on the conveying pipe, a feeding structure is mounted on the material distributing structure, circulating structures which are symmetrically distributed are mounted in the material distributing structure, and a stirring structure is mounted in the feeding structure; according to the constructional engineering material conveying device, the extrusion inlets distributed in an array mode are formed in the connecting pipe, and the extrusion plate sliding up and down is matched, so that a concrete mixture enters the connecting pipe through the extrusion inlets in an extrusion mode of the extrusion plate; abrasion between the concrete mixture and the threaded rotary valve is avoided; the automatic feeding device is completely driven by high-pressure gas injected into the conveying pipe, so that the threaded rotary valve rotates, and the threaded rotary valve is matched with the circulating structure to drive the extrusion plate to slide up and down, so that the automatic feeding effect is achieved, and the situation that high-pressure gas in the conveying pipe vibrates, the conveying pipe and the feeding device vibrate, and feeding of concrete mixtures is affected is avoided.

The utility model discloses a cable sheath extrusion equipment, including the processing platform, the top right -hand member of processing platform is fixedly installed with the feed pipe, the inside fixed mounting of feed pipe has the screen, the top left -hand member of processing platform is fixedly installed with L type board, one side fixed mounting of L type board has servo motor, and the output of servo motor is fixedly installed with small belt pulley, and one side of small belt pulley is connected with large belt pulley through belt drive, and the top one side edge of large belt pulley is fixedly installed with the scraper, and the other end of scraper extends to the inside of feed pipe and is contacted with the surface of screen connection, and large belt pulley is rotatably connected with the top right -hand member of processing platform. The utility model servo motor drives the end of scraper to slide on the surface of screen smoothly, effectively controlled the speed of screen blanking, ensured the uniformity of blanking, and simultaneously, it also prevented the blockage of screen surface to the stability of cable sheath extrusion process, ensured the processing progress.

The utility model discloses a kind of assembled sports field natural lawn repairing devices, belong to lawn repairing technical field.The device includes support, rotationally arranged rotating rod on support, the one end of rotating rod is provided with the drive element of driving its rotation, the other end is threadedly connected with soil taking cylinder, soil taking cylinder is equipped with pressing plate, rotating rod is equipped with with the press part of fixed connection of pressing plate outside sleeve.Set, rotating rod rotationally sets in sleeve.The utility model's advantage is in at:through drive element rotation of rotating rod is driven so that soil taking cylinder is displaced under the action of thread, to be taken out in lawn and soil block in depth, this step compared with the foot of prior art in soil taking can effectively control depth, so that soil taking is more accurate.Pressing plate also can be moved by press part, so that the soil taken is pushed out, by setting in soil taking cylinder simultaneously, convenient and fast to use.

The utility model relates to the technical field of vibrating screening machines, and discloses a mining vibrating screening device which comprises a base, a screening box is connected to the base through a vibrating mechanism, a screening groove is formed in the screening box, a detachable screen is connected to the interior of the screening groove, and a feeding groove is connected to the portion, located on one side of the screening groove, of the screening box. The bottom of the feeding groove is of a slope structure, an outlet of the feeding groove faces one side of the screening groove, a material control assembly used for controlling material flow is arranged at the outlet of the feeding groove and comprises a baffle, hydraulic cylinders are arranged on the screening box and located on the two sides of the feeding groove respectively, the telescopic ends of the two hydraulic cylinders are connected with a mounting frame, and the baffle is connected to the mounting frame. The bottom of the baffle is connected with a plurality of adjusting plates with adjustable intervals. Through mutual cooperation of the adjusting plate with the adjustable distance and the baffle with the adjustable height, the ore feeding speed and the feeding amount are controlled, accumulation of materials on the screen is reduced, screen blocking is reduced, and the screening efficiency is improved.

This application relates to an intelligent toilet seat soft-close device, including a drive module, a first switch module, and a second switch module. The drive module includes a drive source connected to a first semiconductor element. The first switch module is used to conduct the circuit between the drive source and the first semiconductor element and a first consumable element, and a ground terminal. A first terminal of the first switch module is connected to the first consumable element, and a second terminal of the first switch module is grounded. The second switch module is used to control the circuit of the first switch module to cut off when power is available, allowing the drive source to drive the toilet seat normally. In the absence of mains power, the device uses the first switch module to conduct the current loop between the drive source and the ground terminal, hindering the descent of the toilet seat, thereby achieving the effect of slow descent of the toilet seat when there is no mains power. The grounding loop effectively protects the circuit components from damage caused by high back electromotive force. When power is available, the device can also more effectively control the rotation speed and descent speed of the drive source.

The application discloses a CNC secondary tapping processing preparation device, which comprises a machine box, a rotating motor is installed on the surface of the machine box, a pressure bearing frame is fixedly installed between the inner surfaces of the machine box through a set of weighing sensors, a rotating frame driven by the rotating motor is rotatably connected to the inner wall of the pressure bearing frame, two symmetrical load boxes are installed on the surface of the rotating frame, silica gel ring pads are fixedly installed on the surface of the load boxes, negative pressure cavities are fixedly arranged in the interiors of the load boxes and correspond to the inner sides of the silica gel ring pads, a negative pressure generation module in communication with the negative pressure cavities is installed on the side surface of the machine box, a drilling platform is liftable installed on the surface of the machine box, and a guide shaft driven by a servo motor is rotatably connected between the inner surfaces of the drilling platform. The silica gel ring pads are arranged, so that the glass workpiece is effectively vibrated and buffered during the tapping of the glass workpiece, and the damage probability of the glass workpiece during tapping is reduced through the realization of the vibration buffering effect.

The utility model provides a small-sized simulation mine hoist for a friction liner test. The small-sized simulation mine hoist comprises a rack; a rotatable hoist drum; the friction liners are installed on the outer wall of the winding drum, the multiple friction liners are connected end to end and surround the circumferential direction of the winding drum, and at least two rope grooves are formed in the outer surface of each friction liner; the repairing mechanism comprises a repairing tool which can freely move in the horizontal direction and can rotate; according to the utility model, the design structure is reasonable, the mini mine hoist similar to the actual equipment structure is designed to test and simulate the use of the friction liner, the cost is low, the potential safety hazard is small, the data such as the rotating speed and the load of the hoist drum can be effectively controlled, and the test precision is improved; in addition, the repairing tool is arranged on one side of the hoist winding drum, the rope groove can be rapidly repaired under the condition that the rope groove of the friction liner is abraded and the friction liner is not detached, and the beneficial effects of being convenient to operate and high in working efficiency are achieved.

The present application relates to the technical field of bellows preparation, and particularly relates to a cathode device for preparing an electrodeposited bellows and a preparation method, which comprises a frame body, a core mold assembly, a cathode wire assembly and a power transmission assembly. The frame body is internally provided with the core mold assembly, part of the cathode wire assembly and the power transmission assembly. The inner wall of the cylindrical groove of the frame body is provided with annular sawteeth. The core mold assembly comprises a horizontal connecting rod and a core mold body, the other end of the core mold body extends into the frame body, and each aluminum alloy core mold of the core mold body is detachably connected with a nylon external gear meshing with the annular sawteeth at the end away from the horizontal connecting rod. The present application can effectively control the rotating speed of a single core mold during the electrodeposition process, ensure the stable and uniform rotation of the core mold in the circumferential direction, thereby improving the imbalance of the circumferential current density and ion transmission conditions during the electrodeposition process, and ensuring that the prepared single-layer or multi-layer bellows has a uniform wall thickness in the circumferential direction.

The application relates to the field of tire dismounting, in particular to a tire stripping machine driving device which comprises a mounting table, a supporting plate, a fastening platform, a speed reducer and a servo motor, the supporting plate is fixedly connected to the lower end of the mounting table, one side of the fastening platform is fixedly connected with a rotating column, the mounting table is provided with a rotating opening, the rotating column is rotationally connected to the inner wall of the rotating opening around the axis of the rotating column, the shell of the speed reducer is fixedly connected to the lower end of the mounting table, the output shaft of the speed reducer is coaxially fixedly connected to the rotating column, the motor shell of the servo motor is fixedly connected to the mounting table, and the motor shaft of the servo motor is coaxially fixedly connected to the input shaft of the speed reducer. Stepless speed regulation and real-time torque control are realized, tire damage is reduced, the service life of the equipment is prolonged, and the user is facilitated.

The utility model discloses a community afforestation maintenance weed pruning device relates to community afforestation maintenance weed pruning field, including the car body, both sides of car body all are symmetrically provided with the wheel, the car body bottom is equipped with the pruning assembly, the car body top is equipped with the cleaning assembly, can make the weed trimmer adhere to the grass clippings on the inner wall of baffle and clean simultaneously to the weed pruning through the setting cleaning assembly, has reduced the wear and tear of grass clippings to the machine, has prolonged the service life of machine, has reduced the number and time of manual cleaning of maintenance personnel, thereby improved the overall efficiency of pruning work, through setting adjusting assembly can be aimed at the operator of different height, carries out handle height automatic regulation, ensures all can find the operation height suitable for oneself, the handle of adjusting to the suitable height can also make the operator more easily control the direction and speed of cart, thereby more comfortably operates, thereby improves work efficiency.

The utility model discloses an automatic wine pouring device which comprises a machine frame, a height control mechanism, a horizontal displacement control mechanism, a mechanical arm, a steering module and a control system, the height control mechanism, the horizontal displacement control mechanism, the mechanical arm, the steering module and the control system are installed on the machine frame, and the steering module is used for driving the mechanical arm rotationally connected with the steering module to rotate around the horizontal axis. The height control mechanism comprises a first driving part and a vertical guide rail, the steering module is mounted on the vertical guide rail, and the first driving part is used for driving the steering module to move up and down along the vertical guide rail; the horizontal displacement control mechanism comprises a second driving part and a horizontal guide rail, the bottom end of the vertical guide rail is mounted on the horizontal guide rail, and the second driving part is used for driving the vertical guide rail to horizontally move along the horizontal guide rail; the control system is electrically connected with the steering module, the first driving piece and the second driving piece. The mechanical arm is controlled to move along the vertical guide rail, so that the wine pouring height is controlled; and the rotating angle and the rotating speed of the manipulator are controlled through the steering module, so that the wine pouring angle and the wine pouring speed are controlled.

The utility model relates to a variable fertilizer distribution and application machine based on soil moisture content, and relates to the technical field of agricultural machinery; the material cylinder bottom end discharge hopper is inserted in the poking plate, and a magnetic valve is arranged on the discharge hopper; a plurality of distribution hoppers are arranged on the outer ring wall of the central roller in equiangular distribution; the bottom of the poking plate is provided with a discharge hopper; the front end of the central shaft is rotatably connected to the front side wall of the poking plate through a bearing, and the central shaft is arranged on the front side of the poking plate; the variable component is arranged on the front side of the central shaft; the water tank is fixedly arranged on the base frame, and the water tank is arranged on the right side of the groove; a water pump is arranged on one side of the water tank, a drain pipe is arranged on the water outlet of the water pump, and the drain pipe is arranged in the groove; the discharge amount is controlled by controlling the rotating speed, so that the fertilizer is discharged according to the soil requirement, and the water flow is adjusted according to the soil humidity to promote the dissolution of the fertilizer.

The application provides a speed control system of a weak magnetic method stress on-line detector and a control method thereof. The detector speed control system is used for detecting a component to be detected. The detector speed control system comprises a control structure and a control module. The control structure and the control module are signal connected. The control structure comprises an inner shell, an outer shell, a driving motor, a blade, a first flow hole, a second flow hole and a speed measuring sensor. The inner shell is arranged in the outer shell. The first flow hole is arranged between the inner shell and the outer shell. The driving motor is arranged in the inner shell. The output end of the driving motor is connected with a rotating rod. One end of the rotating rod which is arranged to pass through the side wall of the inner shell is connected with the blade. A plurality of second flow holes are arranged on the side wall of the outer shell which is close to the blade. The first flow hole is connected with the second flow hole. The problems that the existing nondestructive detection device cannot control the running speed when working in the pipeline, the detection precision is poor, the detection time is increased and the detection efficiency is reduced are solved.

Provided are: an oxygen concentrator capable of preventing a drop in pilot pressure in the supply flow path open / closed section or the exhaust gas flow path open / closed section, wherein at least one of the supply flow path open / closed section or the exhaust gas flow path open / closed section is a pilot-operated solenoid valve; a control method; and a control procedure. An oxygen concentrator is provided configured such that pressure is applied to an adsorption cylinder whose pressure has already decreased before a pressure equalization step, and thus pressure drop in both adsorption cylinders can be prevented during the pressure equalization step, thereby preventing a drop in pilot pressure in the supply flow path open / closed section or the exhaust gas flow path open / closed section, wherein at least one of the supply flow path open / closed section or the exhaust gas flow path open / closed section is a pilot-operated solenoid valve.

The utility model relates to the technical field of injection molds, in particular to an injection mold capable of controlling the material flow speed. The device comprises a first mold and an adjusting assembly, the adjusting assembly comprises a connecting block, the connecting block is fixedly connected to one side of the first mold, a connecting column is slidably connected to the interior of the connecting block, a rotating groove is formed in the top of the connecting column, and the interior of the rotating groove is in a convex shape; the interior of the rotating groove is rotationally connected with a rotating block, and the rotating block is in a convex shape. According to the injection mold capable of controlling the material flow speed, when injection molding work is carried out, a rotating block can push a limiting block to move downwards through a connecting column, and meanwhile by observing the height difference between a graduated scale and a handle, the limiting block moving downwards can control the size of the inner space of a conveying groove; therefore, the speed and the flow of injection molding materials can be accurately controlled, flexible adjustment can be carried out according to material characteristics, and it is ensured that various types of plastic can be formed in the optimal state.

The utility model discloses composite film stretching equipment which comprises a rack, first shaft rollers, second shaft rollers, third shaft rollers and fourth shaft rollers are sequentially arranged in the rack from left to right, the number of the first shaft rollers, the number of the second shaft rollers, the number of the third shaft rollers and the number of the fourth shaft rollers are all two, the rear side of the first shaft roller on the upper side is connected with a first motor, and the rear side of the second shaft roller on the lower side is connected with a second motor. The first motor is fixedly connected with the rack, the rear side of the third shaft roller on the upper side and the rear side of the fourth shaft roller on the upper side are each connected with a first gear set, and a bevel gear is arranged on the rear side of a second gear set; and the connecting shaft is arranged behind the second gear set, a bevel gear is arranged outside the connecting shaft, the right end of the connecting shaft is connected with a second motor, and the second motor is fixedly connected with the rack. According to the composite film stretching equipment, constant-temperature stretching can be conveniently conducted on a composite film, the stretching stability of the composite film is guaranteed, the stretching strength can be controlled, and the composite film can be conveniently stretched by different lengths.

This invention discloses a flexible rod ultra-long stroke pumping unit, belonging to the technical field of pumping units. The flexible rod ultra-long stroke pumping unit includes a support frame, with an upper platform assembly at the top of the support frame. A cage ladder is fixedly connected to the outer side of the support frame. A drive device is located at the top of the upper platform assembly, and the drive device is connected to a flexible rod. A sucker plug is connected to the end of the flexible rod. A centering wheel assembly is located on the side of the support frame away from the cage ladder, through which the flexible rod passes. The drive device is also connected to a counterweight balancing mechanism. The flexible rod ultra-long stroke pumping unit achieves the reciprocating motion of the sucker rod by winding and releasing the flexible rod on a drum. Compared with various newly developed beamless pumping units on the market, it features a simple structure, small footprint, an ultra-long stroke of 18 meters, low stroke rate, and convenient maintenance.

The application relates to the field of bridge deck pavement repair, in particular to a hollow slab beam bridge hinge joint and bridge deck pavement repair device. The device comprises a travelling trolley, the travelling trolley comprises a bottom plate, four corners of the bottom of the bottom plate are fixedly provided with travelling wheels, one end of the top of the bottom plate is fixedly provided with a control handle, the other end of the top of the bottom plate is fixedly provided with a heating tank assembly, the top of the heating tank assembly is provided with a top cover assembly, an asphalt pump is arranged between the heating tank assembly and the control handle, an output end of the asphalt pump is provided with a spout, one end of the spout is arranged on the outside of the bottom plate, an indication assembly is arranged on the outside of the spout, a control button is fixedly arranged on the top of the control handle, and the control button is electrically connected with the asphalt pump. The device can be operated by one operator, the gap can be filled and treated, manpower can be saved, and efficiency can be improved.

The utility model relates to the technical field of refrigerators, in particular to a refrigerator shelf and a refrigerator. The refrigerator shelf comprises a rotating shelf, a supporting arm and a rotating assembly, the supporting arm is used for being installed on a refrigerator body of the refrigerator, and the supporting arm extends in the first direction; the rotating assembly comprises a connecting rod, a rotating gear and a fixed gear, one end of the connecting rod is fixed to the rotating shelf, the other end extends in the second direction, the rotating gear is arranged on the connecting rod, and the fixed gear is connected with the end, away from the box, of the supporting arm; the side face, facing the rotating gear, of the fixed gear is provided with a plurality of first teeth, the side face, opposite to the rotating gear, of the fixed gear is provided with a plurality of second teeth, a tooth groove is formed between each first tooth and two adjacent first teeth, and the second teeth are meshed with the tooth grooves. The first direction is perpendicular to the second direction. Thus, through meshing fit between the second teeth and the tooth grooves, the rotating speed of the rotating shelf is controllable, and therefore the situation that articles are thrown out due to the fact that the rotating speed of the rotating shelf is too high is avoided.

The utility model relates to the technical field of grinding, and disclose a raw material grinding equipment of controllable hydraulic pressure degree. This raw material grinding equipment of controllable hydraulic pressure degree, include: crushing structural assembly, the upper end left side of crushing structural assembly is installed with hydraulic pressure adjusting assembly, the upper end of hydraulic pressure adjusting assembly is installed with driving gear, the left side of driving gear is installed with hydraulic motor, the left side of hydraulic motor is installed with proportional valve, the upper end of proportional valve is installed with receiver, the front end of crushing structural assembly is installed with control structural assembly, the inside of control structural assembly is installed with APC controller, the lower extreme of APC controller is installed with OPC communication structure, possess effective prevention traditional ball mill control form and adopt motor drive, but when operating in the environment of big pollution degree, motor can frequently have the failure, lead to the follow -up maintenance cost is higher and influence overall work efficiency.

The utility model relates to the technical field of scalp medicine applying device production and processing, and discloses a scalp medicine applying device with a massage function, which comprises a pressure bin, the inner wall of the pressure bin is fixedly connected with a medicine storage bin, the outer wall of the medicine storage bin is fixedly connected with a connecting block, and the inner wall of the connecting block is in threaded connection with an infusion tube. A medicine conveying bin is fixedly connected to the outer wall of the infusion tube, a second connecting tube is fixedly connected to the inner wall of the medicine conveying bin, a ball is rotatably connected to the inner wall of the second connecting tube, a first connecting tube is fixedly connected to the inner wall of the medicine conveying bin, a hole is formed in the first connecting tube, and a bottom plate is fixedly connected to the outer wall of the infusion tube. And a rotating assembly is arranged on the outer wall of the bottom plate. According to the utility model, the second connecting pipe is driven to move synchronously while the pressure bin moves, so that the ball is driven to roll on the scalp of the patient, the head of the patient is massaged while medicine liquid is applied, the medicine liquid can fully enter hair follicles, and the effect of fully absorbing the medicine liquid is achieved.

This application relates to the field of food processing equipment technology, and in particular to a processing device for colored dumpling wrappers, including a frame. A multi-channel colored dough strip extrusion device is provided on one side of the frame. The multi-channel colored dough strip extrusion device includes multiple independent dough hoppers with identical structures for holding dough of a specific color. Each independent dough hopper is equipped with a double-auger feeding mechanism. The outlet of each independent dough hopper is connected to a collection port. When dough of different colors is formed into a dough strip through the outlet of the independent dough hopper and continues to move to the collection port, the multiple dough strips are formed into colored wrappers under the action of the collection port. A pressing roller assembly for rolling the wrappers is provided on the frame. A dough conveyor mechanism for moving the wrappers is also provided on the frame. A dumpling forming mechanism is provided on the side of the frame near the pressing roller assembly. An excess dough recovery mechanism is also provided on the frame. This application can improve the processing efficiency of colored dumplings.

The utility model provides a single-shaft high-precision servo electric actuator which comprises a first servo motor, a lead screw connected with the first servo motor through a coupler, at least two nuts matched with the lead screw, a belleville spring set matched between the two nuts, a sliding rail arranged on the inner wall of the side edge of a shell, and a second servo motor arranged on a sliding block matched with the sliding rail. The fixed bracket is fixed between the second servo motor and the sleeve; according to the scheme, the position and the speed of the actuator are more accurately controlled, errors are reduced and the response speed of the actuator is improved through the synergistic effect of the two motors in dual-motor driving, the two motors act simultaneously or independently, the motion state is rapidly adjusted according to different working condition requirements, the actuator can more rapidly respond to a control instruction, and the control efficiency is improved. The requirements of high-precision application scenes are met, and the overall performance and reliability of equipment are improved.

The utility model relates to a double-order physical foaming extrusion testing machine, and relates to the field of foaming extruders. The device comprises a machine box, the machine box comprises a base and a processing box, the processing box is installed on the upper end face of the base and fixedly connected with the base, a material mixing pipe is horizontally installed on the side face of the processing box and fixedly connected with the processing box in a sealed mode, and two sets of horizontal screw rods are symmetrically installed in the material mixing pipe; the horizontal screws are rotationally connected with the mixing pipe, and a motor set for driving the two horizontal screws to rotate synchronously is further installed on the outer side face of the processing box. Through pre-stirring of the stirring impeller in the feeding shell and synchronous stirring of the two sets of horizontal screws in the material mixing pipe, materials are fully mixed before entering the foaming stage, uniform distribution of material components is guaranteed, and the consistency of the foaming effect is improved. And meanwhile, the pressure release speed and degree can be accurately controlled through a reducing single screw in the pressure release assembly according to the characteristics of materials and process requirements.

The utility model relates to the technical field of joule heat high temperature synthesis equipment discloses a rotatable joule heating device, include: the two sides inner wall of heating bin are connected with the clamping piece opposite rotation, and the pivot of one clamping piece is worn out heating bin, reaction pipe is arranged in the heating bin, and the both ends of reaction pipe are respectively clamped on two clamping pieces, and carbonaceous heating carrier is equipped in reaction pipe, and carbonaceous heating carrier is used for under the action of electric current instantaneous heat generation to heat the material in reaction pipe, the output shaft of rotary drive part is equipped with magnetic coupler, and magnetic coupler is connected with the pivot of clamping piece worn out heating bin, is used for driving reaction pipe to rotate through clamping piece, this device can overcome the defect that traditional heater heating rate is low, heating time is long and limit temperature is not high, can help high temperature synthesis material even in the heating test process is heated, and better control synthesis material's collective appearance, prevent the problem that synthesis material appearance is uneven.