73 results about "Injection - action" patented technology

The utility model relates to the technical field of baby carriage tire injection molding processing, and discloses automatic injection molding equipment for processing baby carriage tires, which comprises a rack and a mold closing chamber, an injection bin is arranged on one side of the rack, the left end of the injection bin is connected with a feeding pipe, a feeding assembly is connected above the feeding pipe, and the left end of the feeding pipe is connected with a glue melting pipe. The left end of the glue melting pipe penetrates through the side wall of the mold closing chamber to be connected with an injection nozzle assembly, the injection nozzle assembly comprises an injection nozzle body and a dredging rod, the dredging rod is slidably sleeved with the injection nozzle body, the side wall of the injection nozzle body communicates with a storage barrel, and external threads are arranged on the outer wall of the right end of the horizontal part of the storage barrel; according to the utility model, after one-time injection molding action is completed, molten materials can be blocked and prevented from being drawn, meanwhile, the pressure in the mold can be maintained, the injection molding quality is effectively improved, meanwhile, the possible blockage of the injection nozzle body can be conveniently and quickly dredged, the downtime is reduced, and the production efficiency is improved.

A dose dial back mechanism of an energy storage injection pen, comprising: a support sleeve (1), which can rotate for dose setting and dose dial back, and can trigger an injection action; an energy storage sleeve (7), which is mounted outside the support sleeve (1) and is linked with the support sleeve (1) to achieve dose adjustment and execute an injection action according to the dose; a fixing gear (4), which is mounted at the front end of the energy storage sleeve (7) and can limit the rotation direction of the energy storage sleeve (7) after being engaged with the energy storage sleeve (7), such that when the fixing gear (4) is engaged with the energy storage sleeve (7), the energy storage sleeve (7) can rotate relative to the fixing gear (4) for dose setting or the energy storage sleeve (7) can drive the fixing gear (4) to rotate synchronously, and when the fixing gear (4) is disengaged from the energy storage sleeve (7), the energy storage sleeve (7) can rotate relative to the fixing gear (4) for dose dial back; and a transmission sleeve (6), which is configured to connect the support sleeve (1) and the energy storage sleeve (7) to achieve linkage, and can push away the fixing gear (4) to enable the fixing gear (4) to disengage from the energy storage sleeve (7). The dose dial back mechanism can achieve dose setting and dose dial back, and therefore can better adjust the dose.

According to the disposable injection pen and the injection unlocking structure thereof, a pre-filled syringe is assembled in a lower pen shell assembly and is driven by a driving device in an upper pen shell assembly to conduct injection, in the injection process, the lower pen shell assembly drives a rotary sliding block in the upper pen shell assembly to move upwards so that an injection needle can be exposed, the rotary sliding block slides on a fixed sleeve, and therefore the injection needle can be unlocked. The driving device in the upper pen shell assembly is unlocked in the sliding process, the rotary sliding block which is rotatably arranged axially slides before reaching the unlocking position, and the rotary sliding block rotates after reaching the unlocking position and collides with the fixed sleeve to make an unlocking prompt tone, so that a user can accurately know the injection starting condition; and the subsequent injection action can be accurately carried out.

According to the disposable injection pen and the injection structure thereof, a screw rod driving structure in an upper pen shell assembly provides injection power for injection of a lower pen shell assembly, a rotating sleeve rotates to drive a screw rod to rotate, the screw rod pushes a pre-filling injector to execute the injection action, and a sound piece and the rotating sleeve rotate synchronously; at the tail end of the action of the injection pen, relative displacement is generated through circumferential rotation of a sound part and a rotary sleeve, the sound part and the rotary sleeve are collided and matched to give out an injection completion warning tone and provide injection completion, and the sound part which synchronously rotates with the rotary sleeve in the injection process and generates relative displacement with the rotary sleeve after injection is completed is provided. Injection completion is accurately prompted at the injection tail end, and the user experience is improved.

The invention discloses bearing end cover pressing equipment, and belongs to the field of bearing machining. Comprising a fixing table, a crimping unit is arranged on the fixing table, and the crimping unit comprises two sets of supporting plates fixed to the fixing table; the material taking device is arranged between the two groups of supporting plates; the pushing device is arranged on the pressing device and used for achieving synchronous linkage of the oil injection action and the material taking action; the cleaning assembly is arranged on the pushing device, and the cleaning assembly is used for achieving injection and automatic cleaning of the lubricating grease; and the linkage assembly is arranged on the fixing table and used for achieving synchronous linkage of the oil injection action and the material taking action. According to the bearing end cover press-fit equipment, through integration of multiple devices and assemblies, the procedures of grease injection, material taking and press-fit are achieved, exposure and contamination of lubricating grease are avoided, the production space is saved, procedure continuity is achieved, and the production efficiency and the assembly precision are improved.

A sound feedback system of an automatic injection apparatus. The automatic injection apparatus comprises a needle protection sleeve (2), a trigger sleeve (9), a return spring (11), a start sound member (12), and an end cap (13). The outer wall of the trigger sleeve (9) is provided with an outer trigger structure (905). The outer trigger structure (905) is provided with an outer trigger inclined surface (9051). The inner surface of the start sound member (12) is provided with a first trigger inclined surface (1204). During use, the needle protection sleeve (2) is pressed down to push the trigger sleeve (9); the outer trigger inclined surface (9051) interacts with the first trigger inclined surface (1204) to drive the start sound member (12) to rotate, and the start sound member ultimately hits the end cap to produce a "start injection" sound signal. Triggering "injection" and triggering the "start injection sound" are accomplished by means of the same part, thereby ensuring that the start injection sound feedback is synchronized with the start of the actual injection action. The start sound member (12) and an end sound member (10) produce sounds by hitting the same end cap, which means that the two sound signals come from the same source, providing the patient with clear feedback for the start and end of the injection.

The application discloses a pressure control stable fuel injector detection system, and relates to the technical field of pressure control.The system comprises a prediction module, a compensation module and a comparison module.The prediction module collects current and voltage waveform data of a driving fuel injector electromagnetic valve, and constructs a pressure fluctuation prediction model through a machine learning model based on driving fuel injector driving signals and historical pressure fluctuation data, so as to predict the pressure disturbance amplitude and waveform generated in the track by the next injection action.The compensation module generates a reverse compensation instruction through a feedforward-feedback compound controller according to the pressure disturbance amplitude and waveform, and a feedback path processes the residual error that is not offset by the feedforward model through a PID controller.The comparison module is based on a stable pressure environment.The application realizes high-precision and visual positioning and diagnosis of fault types, positions and causes, and thus realizes the ability transition from passive standard detection to active intelligent deep diagnosis in essence.

The present application is a secondary action slider structure of a two-color injection molding machine, which comprises a pair of slider pressing plates arranged on a male mold, a molding slider, a fixed guide block and a dragging block, and an on-off device arranged on a female mold. The molding slider, the dragging block and the fixed guide block are arranged in sequence, and corresponding limiting sliding grooves and limiting sliding blocks are arranged between them for connection. A jack is arranged on the top of the dragging block corresponding to the on-off device. Accordingly, when the female mold and the male mold are closed, the on-off device is inserted into the jack hole, so that the dragging block is moved upward and the molding slider is moved horizontally backward after the mold is opened. The molding slider does not retreat during the first injection action, but retreats during the second injection action, which ensures the pre-pressing effect required by the female mold and improves the molding quality.

The utility model relates to the technical field of micro-injection pumps, and discloses a micro-pump, which comprises a micro-injection pump machine, a controller used for controlling injection amount and speed and a display used for interactive display are integrated on the micro-injection pump machine, the micro injection pump machine is further provided with a push rod which is driven by a motor to be propelled and is used for injecting an injector fixed on the micro injection pump machine, and the multi-specification clamp holder is fixed in the middle of the micro injection pump machine. A multi-specification clamping device is arranged above the device, a clamping rod at a proper position is independently pulled open to form an enough opening for the injector to be rapidly placed in from the placing opening, and then the injector is adjusted to the middle position of the annular frame under the equal potential energy of three springs. And the tail end of the injector can be better aligned with the center of the upper end of the push rod.

The present invention provides a disposable injection pen and an injection unlocking structure thereof. A prefilled syringe is assembled in a lower pen housing assembly, which is driven by a driving device in an upper pen housing assembly for injection. During the injection process, the lower pen housing assembly drives a rotating slider in the upper pen housing assembly to move upward to expose the injection needle. The rotating slider slides on a fixed sleeve. During the sliding process, the driving device in the upper pen housing assembly is unlocked. The rotating slider is rotatably arranged and slides axially before reaching the unlocking position. After reaching the unlocking position, the rotating slider rotates and collides with the fixed sleeve to produce an unlocking prompt sound, thereby allowing the user to accurately know the injection start status and accurately perform subsequent injection actions.

The invention relates to the technical field of precise injection molding, and particularly discloses an LSR liquid silica gel injection molding machine which comprises a rack, a vertical mold closing mechanism, a gel injection mechanism and a controller are arranged on the rack, the vertical mold closing mechanism is located at the top of the rack, and the vertical mold closing mechanism comprises a mold closing assembly, a driving assembly, a positioning assembly and a mold supporting assembly; the mold closing assembly is used for opening and closing a mold, the driving assembly is used for driving the mold closing assembly to move, the positioning assembly is used for positioning the mold closing assembly, the mold supporting assembly is used for supporting a product formed by the mold closing assembly, and the glue injection mechanism is installed on the vertical mold closing mechanism. The glue injection mechanism comprises a gun barrel assembly for heating and temperature control and a glue injection driving assembly for driving the gun barrel assembly to execute glue injection action, the controller is electrically connected with the vertical mold closing mechanism and the glue injection mechanism, and the controller controls the vertical mold closing mechanism and the glue injection mechanism to act orderly. The method has the effects of expanding the production scale and improving the production efficiency.

The invention discloses a refrigerating machine oil subpackaging device and method, and the device comprises an oil pumping system which is disposed at an outlet of a crude oil barrel, and is used for pumping crude oil, controlling the pumping action and the pumping flow, and counting the number of the crude oil barrels for subpackaging oil; a liquid level switch is arranged on the transfer barrel to control starting and stopping of rear oil injection actions; the oil injection system is used for receiving the oil conveyed from the transfer barrel and injecting oil to the downstream according to the pressure difference and flow setting requirements; the filled oil barrel is arranged at the downstream of the oil injection system and injects oil to the system according to volume flow metering; and the gas constant-pressure system is arranged among the crude oil barrel, the transfer barrel and the filled oil barrel, works in linkage with the oil pumping system and is used for keeping air isolated in the engine oil split charging process. The invention aims to overcome the defects that the quality is influenced, the split charging precision is influenced, overpressure oil injection is caused, and split charging data cannot be monitored and managed in the split charging process of the barreled refrigerating machine oil at present.

The invention relates to the technical field of injection molding machine control, in particular to a self-adaptive control method and system for an injection molding machine. The method comprises the following steps: monitoring the time change rate of injection pressure at the initial stage of executing injection action by a screw rod, locking the moment when the pressure change rate suddenly changes to a non-return closing moment, and calculating a displacement difference value between the initial position of the screw rod and a non-return closing point as a backflow slippage amount; compensation control of double paths is synchronously executed on the basis of the backflow slippage amount, wherein the first path is geometric volume compensation, and position correction operation is executed on a preset injection pressure maintaining switching position; the second path is pressure maintaining pressure compensation, the viscosity attenuation coefficient is determined based on the backflow slippage amount and the screw rotating speed, and subtraction correction is carried out on the set pressure of the subsequent pressure maintaining stage. Through a dual-path compensation mechanism, the problem of melt backflow caused by closing delay of the non-return ring is effectively solved, and the size precision and the quality stability of an injection molding product are remarkably improved.

Provided are a detection device and a detection method with which it is possible to easily discriminate a location where an abnormality occurs in an injection molding device. A detection device (2) according to the present disclosure is provided with an acceleration information acquisition unit (21), an acceleration abnormality detection unit (22), and an output unit (23). An acceleration information acquisition unit (21) acquires acceleration information of a plunger during an injection operation. An acceleration abnormality detection unit (22) detects an acceleration abnormality of the plunger in the injection direction and a direction perpendicular to the injection direction on the basis of the acceleration information. The output unit (23) outputs abnormality detection information pertaining to the drive mechanism of the plunger when the acceleration abnormality detection unit (22) detects an acceleration abnormality in the injection direction and does not detect an acceleration abnormality in a direction perpendicular to the injection direction.

The invention relates to the field of medical anesthesia, in particular to an intravenous anesthesia dosage and efficacy analysis navigator which comprises an infusion pump mechanism. Comprising an infusion pump body, an injector push rod penetrating through the infusion pump body, a piston caulking groove formed in the injector push rod, a needle cylinder caulking groove formed in one side of the top of the infusion pump body, and a stabilizing piece penetrating through the infusion pump body and used for fixing an injector needle cylinder. The abutting piece is arranged on the inner side of the needle cylinder embedding groove; and the monitor is electrically connected with the infusion pump mechanism for interaction and is used for controlling the injection action of the infusion pump mechanism. Through the synergistic effect of the linkage piece, the limiting piece and the control piece, rapid installation and one-hand operation of the injector are achieved, namely when the injector is placed, the cylinder body is pressed down only with one hand, the linkage piece synchronously triggers the abutting piece to complete axial locking and the stabilizing piece to complete radial pressing, and the operation process is simplified.

The invention discloses a multi-connecting-rod press punching automatic production line, which belongs to the technical field of punching machines, and comprises a punching machine box arranged above a base, four support columns arranged between the punching machine box and the base, a multi-connecting-rod gear transmission group arranged in the punching machine box, an operation table fixedly mounted at the top of the base, and a lower die arranged at the top of the operation table. The device comprises four supporting columns, a same sliding block box is connected among the four supporting columns in a sliding mode, four piston connecting rods are arranged in the sliding block box and connected with a multi-connecting-rod gear transmission set, a same fixing plate is fixedly installed among the four piston connecting rods, and four symmetrically-arranged pressing rods are fixedly installed at the bottom of the fixing plate. A power source of oil injection action directly comes from stamping main motion (pressing down of the piston connecting rod), an additional electric or pneumatic pump is not needed, the piston connecting rod drives the piston plate to compress air in the driving box, pressure gas is generated, and energy recovery and utilization are achieved.

This application discloses a control method, equipment, and storage medium for a two-plate die-casting machine, including: setting a target speed and target pressure for the hammer's follow-out motion; after the injection action is completed, driving the hammer with the target speed and target pressure, while simultaneously limiting the return oil flow of the mold-opening cylinder, so that the hammer pushes the mold plate to perform a mold-opening action; during the process of the hammer pushing the mold plate, controlling the return oil pressure of the mold-opening cylinder by adjusting the opening degree of the pressure relief valve; when the mold plate is detected to have moved to a preset follow-out position, stopping the follow-out driving of the hammer, and completing the subsequent mold-opening action at a preset mold-opening speed until the mold opening is completed. This application achieves the technical effect of improving production safety and stability by simultaneously setting and controlling the target pressure and speed of the hammer's follow-out motion, so that the mold-opening speed is controlled by the hammer's push during the follow-out stage.

The invention belongs to the technical field of hydraulic pressure of injection molding machines, and provides a hydraulic transmission control system for a direct pressing machine and the direct pressing machine. The mold locking loop comprises an active safety valve, an electro-hydraulic directional control valve, a piston control assembly and a first cartridge valve; the piston control assembly is composed of a first electromagnetic reversing valve, a first poppet valve and a piston. The mold locking high-pressure loop consists of a second electromagnetic directional valve and a first one-way valve; the pressure relief loop is composed of a second poppet valve and a first one-way throttling valve, and the pressure relief flow is controlled by adjusting the size of a throttling opening; the glue injection loop is used for controlling the glue density through the melt glue back pressure and executing the glue injection action; and the first cartridge valve is opened and closed by a third electromagnetic directional valve control valve core. Compared with the prior art, the independent pressure relief loop is arranged, and the adjustable first one-way throttle valve is adopted, so that pressure relief impact is effectively reduced, and the abnormal vibration risk of the template is reduced.

This invention discloses a magnesium alloy vehicle frame die-casting molding apparatus, belonging to the technical field of die-casting equipment. It includes a machine base, on which a base platform and a fixed mold are fixedly mounted. An injection chamber is fixedly mounted on the base platform, and a cavity is formed on the fixed mold. The advantages are: This apparatus addresses the problem that traditional venting channels only reach the edge of the cavity, are difficult to access deep cavities, and are located in corners. Through a linkage design between the external venting needle and the guide tube, the external venting needle can penetrate deep into the corners and move dynamically with the injection action, venting residual gas in the corners and avoiding defects such as porosity and shrinkage, thus ensuring the strength of the vehicle frame. Simultaneously, addressing the problem of low venting efficiency and easy backflow clogging with fixed-diameter venting, the eccentric fine hole of the internal venting needle rotates synchronously with the injection, changing its diameter. This allows for large-scale venting in the initial stage and prevention of clogging in the later stage, eliminating the need for frequent machine shutdowns for cleaning. Mechanical transmission allows the venting position and diameter to adapt to changes in cavity pressure and gas volume in real time, matching the filling rhythm and significantly improving die-casting quality and production stability.

The utility model relates to the technical field of water injection testing machines, and discloses a water injection testing machine which comprises a complete machine base, an injector clamping groove support is fixedly connected to one side of the upper portion of the complete machine base, a guide pipe valve clamping groove support is installed on one side of the injector clamping groove support, the guide pipe valve clamping groove support is fixedly connected to the upper portion of the complete machine base, and the injector clamping groove support is fixedly connected to the other side of the complete machine base. Clamping assemblies are fixedly connected to one side of the upper portion of the injector clamping groove support and one side of the upper portion of the catheter valve clamping groove support, the clamping assemblies are used for ensuring the stability when an injector is fixed, a servo electric cylinder is fixedly connected to one side of the upper portion of the whole machine base, and a push block is fixedly connected to the output end of the servo electric cylinder; the push block is slidably connected to the upper side of the interior of the complete machine base, and a protective shell is fixedly connected to one side of the upper portion of the complete machine base. According to the automatic injection device, the injection action can be automatically completed, manual injection is not needed any more, manpower is saved, and the working efficiency is improved.

The utility model provides engine valve body oil injection equipment which comprises a machine table, and the machine table is provided with a feeding module used for feeding and conveying an oil valve body to be injected, an oil injection module used for conducting oil injection on the valve body in the circumferential direction, and an oil injection module used for conducting oil injection on the valve body in the circumferential direction. The discharging module is used for stacking and discharging the oil-sprayed valve bodies; the transferring module is used for carrying the valve bodies among the modules; the oil spraying module comprises an oil storage tank, the oil storage tank is arranged to be of a cavity structure, oil liquid is stored in the oil storage tank, a discharging port and a sealing component used for opening or closing the discharging port are arranged at the upper end of the oil storage tank, a material carrying piece used for containing a valve body is arranged in the cavity structure, and oil spraying components are arranged in the circumferential direction of the material carrying piece; and the oil spraying component is connected with the oil in the oil storage tank through an oil pipe so as to spray the oil on the periphery of the valve body on the material loading piece. By means of the mode, automatic oil injection action on the valve body is achieved, and the working efficiency and the oil injection uniformity are effectively improved.

The invention discloses a nozzle pressure measurement and control system and method capable of measuring ultrahigh pressure of 4000 bar for multiple times, and the system comprises a pressure sensing module which employs a GRAEFF microelectronic technology, is equipped with an active cooling and heat insulation structure, and can stably work in an ultrahigh-pressure and high-temperature environment; the signal processing module is integrated with a temperature compensation algorithm based on a BP neural network, so that the signal precision is remarkably improved; the core control module is combined with a self-adaptive fuzzy PID controller and a feedforward compensator to form an intelligent composite control strategy; and the high-response executing mechanism accurately drives the injection action. The method comprises the steps of real-time pressure acquisition and intelligent compensation, pressure deviation calculation, self-adaptive fuzzy PID and feedforward compound control quantity calculation, and comprehensive output and pressure adjustment. According to the invention, the key technical problems of large pressure measurement drift, slow control response and easy oscillation in ultrahigh pressure injection molding are solved, long-term high-precision measurement and rapid and accurate control under the extreme working condition of 4000 bar / 300 DEG C are realized, and the quality consistency and qualified rate of precision injection molding products are obviously improved.

The utility model discloses a glue injection action control hydraulic loop of an injection molding machine, which comprises a six-position four-way servo valve and a glue injection oil cylinder, a port P of the six-position four-way servo valve is communicated with an oil inlet, a port T of the six-position four-way servo valve is communicated with an oil return port, a port A of the six-position four-way servo valve is communicated with a rear oil port of the glue injection oil cylinder, and a port B of the six-position four-way servo valve is communicated with an oil return port of the glue injection oil cylinder. A port B of the six-position four-way servo valve is communicated with a front oil port of a glue injection oil cylinder, a cartridge valve is arranged between a rear oil port of the glue injection oil cylinder and a port A of the six-position four-way servo valve, a control port of the cartridge valve is communicated with a direction valve, and when the six-position four-way servo valve stops working, the direction valve is controlled to be not electrified, and the direction valve is controlled to be not electrified. And hydraulic oil at a rear oil port in the glue injection oil cylinder is sealed by the cartridge valve and cannot flow to the six-position four-way servo valve, so that the screw rod is prevented from retreating due to leakage of a valve core, the screw rod connected with the conveying end of the glue injection oil cylinder is always kept at a charging ending position, the glue injection starting point positions of the next mold are ensured to be the same, and the influence on the product precision is avoided.

The present invention provides a sandwich injection molding device and method. The molding device includes a main shooting platform and a sub-shooting platform. The sub-nozzle of the sub-shooting platform can be moved away from or close to the main shooting platform under the drive of the sub-shooting movement mechanism, and the main nozzle of the main shooting platform can be moved away from or close to the molding mold under the drive of the main shooting movement mechanism. The sandwich injection molding method mainly connects the sub-nozzle with the main nozzle, squeezes the material A in the sub-nozzle into the main nozzle, and at the same time, the screw of the main shooting platform material tube of the main shooting platform is passively loosened. As the material A is squeezed in, the material B in the main nozzle retreats. Then the sub-shooting platform is removed, and the main shooting platform performs the injection action. Material A and material B are injected into the cavity of the molding mold in sequence; the outer surface of material A that enters the cavity first begins to solidify first, and material B that enters the cavity later flushes material A so that material A forms the outer layer of the molded part, and material B forms the inner layer of the molded part.

The application discloses a front oxygen sensor aging state diagnosis method and device, relates to the technical field of vehicle sensor diagnosis, and collects crankshaft angle, camshaft angle and injection phase matched with the engine in real time, acquires the injection phase and rotating speed in the injection action process of the fuel injector and a plurality of Nernst voltage maximum values within a preset number of periods if the crankshaft angle, the camshaft angle and the injection phase meet the synchronization condition, calculates the first average period required by a preset number of injection actions according to the injection phase and the rotating speed, calculates the second average period according to the plurality of Nernst voltage maximum values within the preset number of periods, and performs front oxygen sensor aging state diagnosis according to the first average period, the second average period and a preset threshold value.

The invention relates to an electromagnetic needleless injector system and method based on a series excited machine, and the system comprises the series excited machine which is used for driving a plunger rod to move; the displacement monitoring module is used for monitoring the displacement of the plunger rod in real time; the safety condition detection module is used for generating a signal representing whether an injection safety condition is met or not; the control module is connected with the series motor, the displacement monitoring module and the safety condition detection module, and the control module is configured to receive injection parameters set by a user; in response to a signal which is received from the safety condition detection module and indicates that the safety condition is met, controlling the series motor to start according to the injection parameter; in the injection process, closed-loop control is conducted on operation of the series motor according to real-time displacement data fed back by the displacement monitoring module until injection actions corresponding to the injection parameters are completed, and therefore the efficient, accurate, safe and intelligent injection operation requirements of the modern livestock breeding industry are met.

The utility model relates to the technical field of grease injection, in particular to an automatic grease injection device based on a motion guide groove, which comprises a frame body. The first driving device is arranged on a first guide rod on the frame body, the tool carrier and the fixing facility are arranged at the upper end of the first driving device and used for containing a motion guide groove to be oiled, and the first driving device drives the first guide rod to move along the first guide rail under the action of a first driving instruction. The tool carrier drives the motion guide groove to be oiled to move; the oil injection driving device is fixedly arranged on the second supporting rod, is perpendicular to the first driving device and is arranged at the upper end of the first driving device; executing the oil injection action under the action of receiving the second driving instruction; the control device is used for forming and outputting the first driving instruction under the action of receiving the first control instruction; and forming the second driving instruction under the action of the received second control instruction.

The utility model discloses an oil tank assembly and a die-casting machine, and relates to the technical field of die-casting machines, the oil tank assembly is applied to the die-casting machine, the oil tank assembly comprises a first oil tank, and the first oil tank is provided with a containing groove for containing hydraulic oil; the defoaming assembly is arranged in the first oil tank, and the defoaming assembly is used for eliminating bubbles on the hydraulic oil in the first oil tank; a second oil tank; the communicating assembly is communicated with the first oil tank and the second oil tank; the technical scheme provided by the utility model has the technical effects that air flow generated when hydraulic oil in the second oil tank performs injection action is conveyed into the communicating assembly, and the communicating assembly blows out the air flow towards the defoaming assembly, so that bubbles on the liquid level of the hydraulic oil in the first oil tank move to the defoaming assembly; the defoaming component is used for blocking or eliminating bubbles.

The invention relates to the technical field of injection systems, and particularly discloses a novel injection system hydraulic circuit which comprises a system oil way, an energy storage oil way and an injection oil way, the system oil way comprises a system oil port, and the energy storage oil way comprises a first energy accumulator. The injection oil way comprises an injection oil cylinder, a first proportional servo cartridge valve, a second proportional servo cartridge valve, a proportional servo direction control valve and an oil tank, the system oil port is communicated with the first proportional servo cartridge valve and the first energy accumulator at the same time, and an oil outlet of the first proportional servo cartridge valve is communicated with a rodless cavity of the injection oil cylinder; in other words, hydraulic oil provided by a system oil port can directly enter the rodless cavity of the injection oil cylinder through the first proportional servo cartridge valve to achieve the low-speed injection action of the injection oil cylinder, and can also enter the first energy accumulator firstly for energy storage, and then the first energy accumulator fills oil into the rodless cavity of the injection oil cylinder through the first proportional servo cartridge valve to achieve the low-speed injection action of the injection oil cylinder. The high-speed injection action is realized, and different injection requirements are met.

The utility model discloses an injection pen and a clutch device thereof, and relates to the technical field of medical instruments, the injection pen clutch device comprises a pen body, an injection mechanism, a dosage hub and a clutch, the injection mechanism is arranged on the pen body, and the injection mechanism is used for pushing injection of liquid medicine in a cartridge bottle; the dosage hub is arranged on the pen body, and the dosage hub can move in the axial direction of the pen body so as to adjust the injection amount; the clutch is used for driving the injection mechanism to achieve injection action, the clutch is arranged in the dosage hub, the clutch can move in the axial direction of the pen body, and on the moving path of the clutch, the clutch has the two states of abutting coupling with the dosage hub and separation decoupling with the dosage hub. According to the injection pen clutch device, by simplifying the structure of the injection pen clutch device, dependence on vulnerable parts such as a metal spring is reduced, so that the overall durability and reliability are improved, and the problems that in the prior art, a clutch mechanism is complex in structure, high in cost, difficult to maintain and poor in environmental adaptability are effectively solved.