460 results about "Opening - action" patented technology

A transmission mechanism (200) and an electric chuck. The transmission mechanism (200) comprises a lead screw (201), a lead screw nut (202), and a pull rod connecting shaft (204). The lead screw (201) is provided with a power connection end connected to a power mechanism (100), and the lead screw (201) rotates under the drive of the power mechanism (100). The lead screw nut (202) is located in front of the power connection end. The lead screw nut (202) is sleeved on the outer circumference of the lead screw (201), the lead screw nut (202) is matched with the lead screw (201) by means of threads, and the lead screw nut (202) is driven by the rotation of the lead screw (201) to move back and forth along the axial direction. The pull rod connecting shaft (204) is located in front of the lead screw nut (202), the pull rod connecting shaft (204) is connected to the lead screw nut (202), the pull rod connecting shaft (204) is driven to move axially by an axial movement of the lead screw nut (202), and the pull rod connecting shaft (204) is configured to drive a clamping jaw transmission assembly (300) to move axially. The transmission mechanism (200) can convert a rotation output of the power mechanism (100) such as a motor (101) into a linear movement and output same to the clamping jaw transmission assembly (300) and a clamping jaw (400), so as to implement a clamping action or an opening action of the clamping jaw (400).

The invention relates to full-automatic air cushion foundation make-up filling equipment which is provided with a plurality of areas including a feeding area, a positioning area, a box opening area, a sponge supply area, a filling area, a ring supply area, a ring pressing area and a cover closing area. The air cushion box can be rotated to a set position through the visual positioning mechanism and the positioning carrying table in the positioning area, the follow-up box opening action of the box opening area is facilitated, automatic box opening of the air cushion box can be achieved through the box opening mechanism in the box opening area, sponge can be automatically conveyed into the air cushion box in the open state through the sponge supply mechanism in the sponge supply area, and the automatic box opening operation is achieved. The air cushion box containing sponge can be automatically filled through the filling mechanism in the filling area, plastic packaging rings can be conveyed to a target position through the plastic packaging ring feeding assembly in the ring supply area, automatic ring pressing can be achieved through the ring pressing mechanism in the ring pressing area, and automatic cover closing of the air cushion box can be achieved through the cover closing mechanism in the cover closing area. The equipment integrates a feeding area, a positioning area and other areas, and all the areas can achieve automatic operation.

The invention discloses an intelligent mold opening control method for a hydraulic injection molding machine, which comprises the following steps of: setting a driving rotating speed instruction rising slope of a mold opening action and a deceleration coefficient of the mold opening action, setting a feedback mechanism through a position sensor, and collecting the position of a template in real time for feedback; a deceleration point is intelligently calculated based on the deceleration coefficient, the rotating speed of the motor and the position of the template, the mold opening speed is planned in real time according to the deceleration coefficient and the position feedback of the template in the deceleration process, the deceleration process is intelligently planned, and mold opening control is achieved; the method has the advantages that the mold opening parameter debugging process is simple, the difficulty is low, and the stability of the mold opening process is high.

The utility model relates to a handcart type switching device for power supply or distribution, in particular to a circuit breaker. The circuit breaker comprises a fixed base, a mechanism box and a three-phase solid-sealed polar pole are arranged on the fixed base, an opening and closing mechanism for driving the three-phase solid-sealed polar pole to conduct opening and closing is arranged in the mechanism box, and the opening and closing mechanism comprises an electromagnetic mechanism and a permanent magnet maintaining mechanism which are integrated in the mechanism box and used for driving the closing action. An output shaft is arranged on a movable iron core of the electromagnetic mechanism, the permanent magnet holding mechanism and the repulsive force mechanism both act on the output shaft, so that each stage in the opening and closing process can be rapidly completed, the repulsive force mechanism is high in response speed, needed repulsive force can be rapidly generated, and the reliability of the opening and closing operation is improved. The permanent magnet holding force is overcome, rapid opening is realized, the opening time is shortened, and the opening speed is obviously improved.

The invention discloses a method and device for controlling a robot to open a door and a nonvolatile storage medium. The method comprises the steps that pose information corresponding to a target handle and position information corresponding to a mechanical arm and a chassis in a target robot are obtained; inputting the pose information, the position information corresponding to the mechanical arm and the position information corresponding to the chassis into the target dynamic motion primitive model to obtain a predicted motion track; state information corresponding to the mechanical arm and the chassis is obtained; based on the state information corresponding to the mechanical arm and the chassis, corresponding dynamic models are established; an action sequence is generated based on the predicted motion trail, kinetic models corresponding to the mechanical arm and the chassis and a prediction control model based on the model; and controlling the mechanical arm and the chassis to perform door opening motion based on the action sequence. The technical problems that a mechanical arm and a chassis of an existing robot are poor in coordination, a handle can not be accurately grabbed or the door opening action can not be completed when the robot moves according to a fixed track, and accidents are likely to happen are solved.

The invention belongs to the technical field of food machinery, and particularly relates to a steamed bun blank forming device which performs square-to-round forming without changing the temperature of a dough blank and comprises a forming rack, and a pressing-breaking shaping mechanism, a steamed bun blank cutting mechanism and a rubbing roller mechanism are arranged on the forming rack from front to back. A steamed bun blank shaping clamping hand is arranged on the forming rack and located on the rear side of the rubbing roller mechanism, the steamed bun blank shaping clamping hand comprises a supporting frame, guide rods are arranged on the supporting frame in a crossed mode and sequentially arranged, clamping jaw assemblies are arranged on the two sides of each guide rod respectively, and a driving assembly used for driving the clamping jaw assemblies to correspondingly move along the guide rods is arranged on the supporting frame. Due to the fact that the steamed bun blank shaping clamping hand is provided with the four clamping jaw assemblies, each clamping jaw assembly is provided with one shaping clamping plate, and the inner side face of each shaping clamping plate is an arc-shaped face, the steamed bun blank shaping clamping hand can be folded under driving of the driving assembly to conduct final shaping on steamed bun blanks. And finally formed steamed bun blanks are more attractive.

The utility model discloses a pet cage, which belongs to the technical field of pet supplies, and comprises side pieces, the adjacent side pieces are detachably connected end to end, and the side pieces are provided with inlets and outlets; the door sheet is slidably connected to the front side of the side sheet and used for opening or closing the entrance and exit, and a pivoting sheet is rotatably connected to the door sheet; the pivoting piece is provided with a pivoting part and is rotatably connected to the door piece, the two ends of the pivoting part extend towards the rear sides of the side pieces and are bent to form bent parts, the bent parts are connected to the side pieces in a hooked mode, and the connecting part is connected to the pivoting part; the door lock is detachably connected to the connecting part and used for locking the pivoting piece to the door piece; the top sheet is arranged at the upper part of the side sheet; the supporting plate is arranged on the lower portion of the rear side of the side piece, a bottom piece is placed on the supporting plate, and a tray is placed below the bottom piece; the door lock is unlocked to unlock the pivoting piece, the door piece can be opened only by rotating the pivoting piece outwards to enable the bending part to rotate to the front side of the side piece, the opening mode of the door piece is complex, a pet is difficult to imitate the door opening action of a user to open the door piece, and the pet is prevented from escaping.

The invention relates to an inner shrinkage core mold, which comprises a top plate, a front mold, a rear mold and a bottom plate, an ejection structure is arranged between the rear mold and the bottom plate, the ejection structure comprises an upper ejection plate and a lower ejection plate, the lower ejection plate is rotatably connected with a middle core, a threaded core is arranged on the outer side of the middle core, the threaded core is arranged in a split manner, and the upper ejection plate is connected with the lower ejection plate. Each split body is clamped with the middle core, the threaded core rotates along with the middle core, and when the middle core moves in the direction away from the cavity, one end, facing the cavity, of each split body of the threaded core inclines towards the middle core. By adopting the technical scheme, the split bodies of the threaded core are simultaneously driven to complete the composite action of rotation and radial inclined shrinkage through the rotation and backward pulling action of the middle core, the split bodies are rotated by an angle firstly, so that a mold core structure corresponding to an internal thread is loosened from the internal thread of a product, and the mold opening action is continued; and the inclined contraction action enables the thread part to be thoroughly separated, so that the demolding stroke is greatly shortened.

The invention discloses a cover opening and closing mechanism and sample pretreatment equipment, the cover opening and closing mechanism comprises a first cover opening assembly and a second cover opening assembly, the first cover opening assembly comprises a pressing unit and a cover opening unit, the pressing unit is used for limiting a container in a first direction, and the cover opening unit is used for opening the container in a second direction; the uncovering unit is used for being matched with the pressing unit to take down the first cover body on the container; and the second uncovering assembly is used for uncovering a second cover body on the container. The cover opening requirement of the container with the two layers of cover bodies can be met through the two stages of cover opening assemblies, the first cover opening assembly conducts cover opening after being pressed and limited, the second cover opening assembly can conduct cover opening action on the other layer of cover body on the container after the first cover opening assembly acts, and the cover opening requirement of the two layers of cover bodies on the single container is met.

A vacuum circuit breaker driven by lever sliding comprises a shell, a rotating main shaft and a vacuum arc-extinguishing chamber are arranged in the shell, the rotating main shaft drives the vacuum arc-extinguishing chamber to open and close through a driving structure, and the driving structure comprises a driving lever linked with the rotating main shaft. The driving lever is provided with a rotating center O, an input end A linked with the rotating main shaft and an output end B linked with the vacuum arc-extinguishing chamber, the rotating main shaft drives the input end A of the driving lever to rotate around the rotating center O through rotating action, the output end B is driven to move by utilizing a lever effect, and then the vacuum arc-extinguishing chamber is driven to realize closing and opening actions; and a force arm OA formed by the rotating center O and the input end A is longer than a force arm OB formed by the rotating center O and the output end B.

The utility model relates to the technical field of intelligent locks, and discloses an intelligent lock handle and an intelligent lock, the intelligent lock handle is suitable for driving the intelligent lock to open, and the intelligent lock handle comprises a holding rod for a user to hold a sliding door; the palmprint recognition sensor is embedded in the circumferential surface of the holding rod and is suitable for acquiring palmprint information of a user and generating control information according to a comparison result of the acquired palmprint information of the user and preset palmprint information; the controller is electrically connected with the palmprint recognition sensor and suitable for controlling the intelligent lock according to control information generated by the palmprint recognition sensor, a user can directly open a door after holding the holding rod with the hand to complete palmprint recognition, recognition action and door opening action are combined into a whole, and the whole door opening process is simplified.

The invention relates to the field of boxed medicine packaging lines, in particular to an automatic boxed medicine packaging line which comprises a conveying unit, a feeding unit is installed on one side of the conveying unit, a packaging box discharging mechanism is arranged at the upper end of the conveying unit, and a continuous conveying mechanism used for conveying packaging boxes is installed on the side face of the conveying unit. And a filling mechanism for filling the tablets into the packaging boxes is arranged at the lower end of the continuous conveying mechanism. According to the full-automatic packaging machine, grabbing, space transferring and posture keeping of packaging boxes are synchronously achieved through a driving motor, a planetary gear and belt transmission combination, the mechanical box opening action is integrated in the transferring path, the box opening procedure is seamlessly embedded into the continuous conveying process, the production takt is greatly shortened, and the overall packaging speed is increased.

The utility model provides a ball bottle preventing from being opened by children, which relates to the technical field of ball bottles and comprises a bottle body and a bottle cap, a bottle opening is arranged at the top of the bottle body, external threads are arranged on the outer surface of the bottle opening close to the top, and first clamping blocks are symmetrically and fixedly connected to the outer surface of the bottle opening close to the bottom. Second clamping blocks are symmetrically and fixedly connected to the positions, close to the bottom, of the inner surface of the bottle cap. According to the bottle cap, the first clamping block, the second clamping block, the external thread and the thread groove are used in a matched mode, double limiting can be conducted on the bottle cap, and therefore when the bottle cap is detached, the bottle cap needs to be squeezed, the first clamping block and the second clamping block are not clamped any more to release the locking state, then the bottle cap is taken down through rotation, two kinds of operation are combined through the design, and the bottle cap is convenient to use. The locking state is unlocked by extruding the clamping block, and the opening action is completed by rotating, so that the opening complexity is increased, the safety of the product is improved, and children or accidental opening is prevented.

The invention relates to the technical field of injection molding devices, and provides a mold opening pressurization hydraulic system and an injection molding machine, and the hydraulic system comprises a main oil cylinder, a pressurization oil cylinder, a first cartridge valve, a first reversing valve and a second reversing valve. Compared with the prior art, the hydraulic system has the advantages that the connection mode between the rod cavity and the rodless cavity of the main oil cylinder and the system oil port and the oil tank is switched through the first reversing valve, reciprocating motion of the piston rod of the main oil cylinder is achieved, and meanwhile the first cartridge valve and the second reversing valve are utilized; and when the main oil cylinder executes the mold opening action, the pressure cylinder is pressurized, so that the force applied to the mold by the main oil cylinder in the mold opening process is increased, and the deep-cavity mold can be smoothly opened.

The invention discloses a switch lock linkage mechanism for a window, which consists of a one-piece bracket, and a rotating groove assembly, a rotating groove unlocking piece and an unlocking piece pin, a rack and a rack pin, a rocker arm and a rocker arm bracket pin, a connecting rod and a rack connecting rod pin, a first torsion spring and a second torsion spring which are arranged on the one-piece bracket. When a window is about to be closed in place, the rotary groove component can rotate by touching and pressing the lower rotary groove unlocking piece, and then the lower rotary groove unlocking piece pushes the rack to drive the connecting rod to rotate the rocker arm and pull the bottom groove connecting rod component to lock a window sash, so that window closing and locking are realized, and the rotary groove component reversely acts to complete unlocking and opening actions. Compared with similar products of a concealed electric window adopting a window opener and an electric lock box in the market, the concealed electric window has the advantages that the arrangement of the electric lock box is omitted, the mechanism is simplified, the manufacturing and mounting links are saved, the production cost is reduced, and the links of generating problems after sale are reduced.

The invention discloses a quick mechanical switch based on a coil type electromagnetic driving mechanism, which comprises a vacuum arc extinguish chamber, a static contact, a moving contact, a transmission connecting rod, an electromagnetic driving mechanism, a discharge circuit, a holding mechanism and a buffer mechanism. According to the three-coil type electromagnetic driving mechanism, rapid opening and closing operation of the rapid mechanical switch with the electromagnetic buffering function can be achieved, at the last stage of opening action, the three-coil type electromagnetic driving mechanism can also use electromagnetic force to restrain opening rebound, the opening rebound displacement and rebound time are reduced, the instantaneous output requirement for a maintaining mechanism in the opening rebound restraining process can be lowered, and the reliability of the maintaining mechanism is improved. The size of the buffer mechanism and the holding mechanism can be reduced, so that the application range of the quick mechanical switch is wider.

The utility model relates to a plastic volute high stability injection moulding mould, including upper mould body and lower mould body, the upper mould body includes upper fixed plate, fixed mould plate, four guide post, the lower mould body includes lower fixed plate, two top plate, two mould foot, movable mould plate, ejection subassembly, the fixed mould plate is equipped with the cavity, is used for forming the molding rod of first round hole, the ejection subassembly is equipped with the lower fixed plate, and the molding rod of second round hole is equipped with the lower fixed plate. A cavity is formed in the fixed mold plate, the forming rod is inserted into the cavity, a mold core is arranged on the movable mold plate, a first sliding groove communicated with the cavity is formed in the fixed mold plate, two sliding blocks are connected in the first sliding groove in a sliding mode, two avoiding grooves are formed in the first sliding groove, two inclined guide columns are arranged on the upper fixing plate, and the inclined guide columns are connected with the sliding blocks in a sliding mode. Inclined holes matched with the inclined guide columns in an inserted mode are formed in the two sliding blocks. According to the utility model, the two sliding blocks can stably move away from the plastic volute when the mold is opened by utilizing the mold opening action of the mold, so that the inverted buckling structure of the two sliding blocks and the plastic volute is removed, and the plastic volute can be smoothly demolded.

The utility model relates to a hydraulic system of a valve electro-hydraulic actuating mechanism, a motor is used for driving a gear pump to pump hydraulic oil in an oil tank into an energy accumulator, an actuating oil cylinder and the oil tank are arranged on the upper portion of a supporting frame, and the motor, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, the gear pump and a hydraulic loop are arranged on the lower portion of the supporting frame. An energy accumulator is arranged on the side face of the supporting frame, a piston rod of the execution oil cylinder is connected with a valve rod of the valve through a connecting piece, an oil level sensor is arranged on the oil tank cover, and the execution oil cylinder is provided with a valve position sensor. The utility model has the advantages that the energy accumulator is used as a power source and can provide power energy for the actuating mechanism; the opening action electromagnetic valve, the quick-closing electromagnetic valve, the ESD emergency action electromagnetic valve, the motor, the valve position sensor, the oil level sensor, the temperature sensor and the pressure sensor are connected with the PLC, maintenance personnel can check the running state of equipment at any time through the HMI human-computer interaction screen, operation is easy, maintenance is convenient and fast, and time and labor are saved.

The invention belongs to the related field of pneumatic control technology, and discloses an ultrahigh-pressure large-drift-diameter quick-opening control device which comprises a main valve, a pressure starting valve and a proportional pressure reducing valve, the main valve is pressed and fixed by a pressure-bearing end cover and comprises a main valve body, a main valve element, a main valve spring, a lining and the like, and an inlet cavity, a control cavity and a back pressure cavity are machined in the main valve; the pressure starting valve and the proportional pressure reducing valve are integrally inserted into an upper inner cavity and a lower inner cavity of the main valve element respectively, and meanwhile different flow channels are machined between the inlet cavity and the proportional pressure reducing valve, between the proportional pressure reducing valve and the back pressure cavity, between the inlet cavity and the pressure starting valve and between the pressure starting valve and the control cavity respectively. By means of the valve, reliable sealing can be achieved before the gas inlet pressure is lower than the set opening pressure, automatic and rapid opening and releasing of ultrahigh pressure gas can be achieved when the set pressure is reached, and meanwhile the requirements for multiple performance indexes such as ultrahigh pressure resistance (350 MPa), large drift diameter (DN85) and rapid opening action (5 ms) are met.

A push block and a reset spring are arranged on a handle of an operation assembly of the electric endoscope cutting anastomat, and a driving groove is formed in the lower bottom face of a driving sliding block of a driving piece. And the push block on the handle is inserted into the driving groove of the driving slide block. The reset spring drives the handle to rotate in the opening direction between the handle and the anastomat body, and the driving piece drives the nail bin assembly and the nail anvil assembly to execute the opening action. The handle overcomes the acting force of the reset spring to rotate in the closing direction with the anastomat body, and then the driving piece drives the nail bin assembly and the nail anvil assembly to execute the closing action. The driving switch controls the motor assembly to drive the driving groove of the driving sliding block to move forwards, so that the push block of the handle is separated from the driving groove of the driving sliding block and then is pressed on the lower bottom face of the driving sliding block under the acting force of the reset spring, and the handle does not rotate any more. The motor assembly drives the driving groove of the driving sliding block to move backwards to the push block of the handle, and the push block of the handle is inserted into the driving groove of the driving sliding block again under the acting force of the reset spring.

The invention discloses a control method and system for reducing the load of a wind turbine generator under the blade jamming working condition, and the method comprises the steps: after triggering the blade jamming fault, not feathering a non-fault blade, limiting the blade opening action of the non-fault blade, enabling the generator to laterally face wind at a preset angle in an active yawing manner, and enabling the wind turbine generator to generate the wind at a preset angle. Meanwhile, the maximum torque capable of being supported by the unit is continuously output, and the set value of the rotating speed of the unit is slowly reduced, so that the rotating speed of the unit is reduced, fault blades and non-fault blades are kept in a close state as far as possible in a short time, and after the rotating speed of the unit is reduced to a preset threshold value, the non-fault blades are commanded to perform feathering; and the feathering rate is switched according to the derivative of the pitch angle by the wind energy utilization coefficient, so that the load reduction capability of the unit on the blade stuck working condition is improved. According to the invention, the large part load of the wind generating set under the working condition that the blades are stuck can be effectively reduced, and the safety of the wind generating set is greatly improved.

The invention relates to an electric vehicle front face plastic shield injection mold multi-point sideslip forming structure which comprises an upper mold body and a lower mold body, the upper mold body comprises an upper fixing plate and a fixed mold plate, the lower mold body comprises a movable mold plate, and two first forming blocks are connected to the movable mold plate in a sliding mode; two second forming blocks, two power blocks and two third forming blocks are connected to the fixed mold plate in a sliding mode; the power block is provided with a first inclined groove and two second inclined grooves, and the two second forming blocks and the two third forming blocks are in sliding fit with the first inclined groove and the second inclined grooves correspondingly. Two fourth forming blocks are arranged on the first forming block, and fifth forming blocks are connected to the fourth forming blocks in a sliding mode. According to the invention, sectional type sideslip core-pulling demoulding of a plurality of forming blocks is realized by utilizing the mould opening action of the mould.

The invention belongs to the technical field of nuclear power, and particularly relates to a pressure self-driving type separation pressure relief device. The device is driven to be opened through unbalanced force caused by medium pressure to the valve rod assembly. The separation structure is arranged, and the bearing bush and the separator can complete the separation action when the required separation pulling force is applied; the protector is of an integrated structure, one end of the protector is designed to be a blind hole, the head of the protector is designed to be a weak area, zero leakage is kept in a closed state under the normal working condition, when medium pressure reaches starting pressure, the disengaging structure is disengaged, the valve rod breaks the protector in a pulling mode, and the opening action is completed. The whole action process does not depend on external energy, signals, manpower and other operations, has the characteristic of high reliability, and can be applied to numerous key parts needing to execute the pressure relief function.

The utility model is suitable for the technical field of quick-opening cups, and provides a side-pressing expansion silica gel quick-opening cup cover which comprises a first cover body, and a second cover body is movably connected with the first cover body. The buttons are movably installed on the two sides of the first cover body and matched with the second cover body in a buckled mode, and after the buttons and the second cover body are released, the first cover body and the second cover body move relatively; when the expansion sealing assembly, the button and the second cover body are buckled, the first cover body abuts against the supporting rods, the flexible sleeve driving piece is driven to move, the flexible sleeve is forced to be compressed and expanded relative to the second cover body and abut against the cup body for sealing, when the first cover body and the second cover body move relatively, abutting against the expansion sealing assembly is relieved, and the flexible sleeve recovers deformation under the elastic force effect and does not abut against the cup body. The utility model further provides a cup. The cover opening action is smooth, the lock catch is arranged, safety and reliability are achieved, and cleaning and sanitation dead angles are eliminated.

The utility model discloses a forming mold for a front door A-pillar joint angle of a vehicle door glass trough, and relates to the technical field of injection molds for automobile parts. Comprising a lower mold and an upper mold, the upper mold is movably arranged at the top of the lower mold, a floating plate is arranged at the top of the lower mold through a nitrogen spring, a first injection molding module and a second injection molding module located on one side of the first injection molding module are arranged at the top of the floating plate, and the first injection molding module and the second injection molding module form a first injection molding cavity. An oil cylinder action of an existing mold rising floating plate is canceled and replaced by a nitrogen spring, after injection molding is completed and equipment opens the mold, the floating plate rapidly rises under the action of the nitrogen spring, a complex oil cylinder mold opening action is simplified, the production efficiency is improved, the mold development cost is reduced, meanwhile, the customer requirements are met, and the product quality is improved. The top strip trough material is controlled by the fourth air cylinder to complete mold insertion, rapid assembly and disassembly are achieved, the labor intensity of workers is relieved to the maximum degree, and the machining efficiency is improved.

The application relates to a force-amplifying pneumatic clamping jaw, which comprises multiple unit air cylinders, a tail cover, an end cover, a driving rod, a first clamping jaw and a second clamping jaw, the cylinder body and the end cover of each unit air cylinder are provided with first air holes, the piston body of each unit air cylinder is provided with a second air hole; the end cover is provided with a third air hole, one end of the third air hole is communicated with a second air nozzle, and the other end is communicated with the rod cavity of the unit air cylinder closest to the end cover, the cylinder body of each unit air cylinder except the unit air cylinder closest to the end cover is provided with a fourth air hole, one end of the fourth air hole is communicated with the rod cavity of the unit air cylinder, and the other end is communicated with the atmosphere. The application rearranges the air inlet and outlet channels, only has a slight impact on the workpiece once when performing the clamping action, presents a stable clamping phenomenon, and has small vibration; meanwhile, the clamping force is rapidly increased from small; when performing the opening action, a stable opening phenomenon is presented, vibration and noise can be reduced.

The present disclosure provides a laundry treating apparatus capable of opening and closing an opening and closing cover with a small force. A laundry treating apparatus according to the present disclosure includes: a main body having a main body opening; an opening / closing cover for closing the main body opening in an openable / closable manner; a connecting part which connects the opening and closing cover to the main body and rotatably supports the opening and closing cover; and an engagement unit which is provided to the main body and which engages with the opening / closing cover to close the opening / closing cover, the engagement unit being provided with an engagement part which is provided to the main body and is configured so as to be rotatable, the opening / closing cover being provided with: a handle member; an engaged portion configured to be capable of engaging by a rotational operation of the engaging portion; and a pressing protrusion configured so as to be able to protrude toward the rear side of the opening / closing cover by the opening operation of the handle member.

The utility model discloses an injection mold adopting an ejector sleeve for ejection, which comprises a front mold, a rear mold, a rear mold plate and an annular product cavity enclosed by the front mold plate, the rear mold comprises an ejector sleeve component and an ejector plate component, and the ejector sleeve component comprises an outer-layer ejector sleeve, an ejector sleeve insert and an ejector sleeve sprue puller which are sequentially sleeved from outside to inside; when the ejector plate assembly moves in the mold opening and closing direction, the outer-layer ejector sleeve and the ejector sleeve sprue puller are driven to integrally move relative to the ejector sleeve insert in the mold opening and closing direction. According to the utility model, the product is ejected by adopting the ejector sleeve assembly, an insert line or an ejection trace on the product is formed on the end surface of the product, and the end surface of the product is an unimportant appearance surface of the product, so that the main appearance surface of the product is not influenced, and the rejection rate of the product is reduced; and the ejection action of the product is simple, the mold opening action of the mold is not increased, the mold structure stability is good, and the mold is particularly suitable for large-size multi-cavity molds with high structural stability requirements.

This application provides a method, an apparatus, and a system for controlling a mechanical finger, and a device. This application relates to the field of robot technologies and smart warehouse technologies. The method includes: obtaining a mechanical limit interval of the mechanical finger in response to a control instruction; determining a limit position within the mechanical limit interval and an avoidance angle corresponding to the limit position; determining, based on the limit position and the avoidance angle corresponding to the limit position, an opening / closing angle of the mechanical finger; and controlling, based on the opening / closing angle, a reduction motor to drive the mechanical finger to execute an opening action or a closing action.