120results about How to "Avoid deflection" patented technology

This invention discloses a blind-mating reset fluid connector, comprising: a housing mounted on a first object; an axial elastic element and a guide limiting element provided between a sleeve and the housing; one end of a pipe connected to the first object, and the other end of the pipe detachably connected to a connector, the portion of the pipe being located within the sleeve, and a radial elastic element provided between the pipe and the sleeve; a guide seat movably sleeved on the pipe, and a force transmission element provided between the guide seat and the sleeve, and a guide assembly provided on the guide seat; this invention provides a blind-mating reset fluid connector that, through the force transmission element, allows the guide seat and the sleeve to transmit axial thrust without contact, avoiding interference between the radial and axial floating components of the fluid connector.

The application discloses a driving wheel rotating structure, which comprises a rotating mechanism, a mounting plate, a rotating support assembly and a roller assembly, wherein the rotating mechanism comprises a rotating shaft, a gear and a rotating disc, the gear is fixedly connected to the end of the rotating shaft, and the rotating disc is provided with a gear ring which is engaged with the gear; the upper surface of the mounting plate is provided with a second bearing, the lower surface of the mounting plate is provided with a third bearing, and the rotating shaft penetrates through the second bearing and the third bearing; the rotating support assembly comprises a first support seat and at least one first bearing arranged in the first support seat, and the first support seat is located between the mounting plate and the rotating disc; and the roller assembly is fixedly connected with the rotating disc and rotatably connected with the rotating support assembly. The second bearing and the third bearing are arranged to form a double support structure of the rotating shaft, thereby improving the stability of the rotating shaft and avoiding the driving wheel from being stuck during the steering process.

The utility model relates to elevator door sword technical field, specifically disclose a kind of elevator synchronous door sword with car door lock, including door hanging plate, the front end of door hanging plate is equipped with the accommodation groove, and the inside of accommodation groove is passed out and has the block that passes out, the one end fixed mounting of block that passes out accommodation groove is equipped with door sword main part, and the one side of block that passes out accommodation groove inside is provided with dismounting mechanism;The dismounting mechanism includes servo motor, and the outer wall one side of door hanging plate is embedded in servo motor, and the power output end of servo motor is fixedly installed with worm, by the cooperation of servo motor, sliding block, clamping plate, engagement block, engagement slot, first spring, electromagnet, block and the slot that goes in, can be clamped and engaged from two sides to block that passes out, to when quickly let door hanging plate and door sword main part dismount, can improve the stability of clamping, avoid the situation of inclination or instability, lead to influence the locking accuracy of door sword main part, improve the security of elevator operation.

This invention discloses a sensing spring adjustment mechanism for mask mounting, belonging to the field of semiconductor lithography equipment technology. It includes a mounting base, a rotating shaft rotatably mounted on the mounting base, and a detection lever fixedly connected to the rotating shaft. Double torsion springs are sleeved at both ends of the rotating shaft, with the middle connecting end of the double torsion spring abutting against the bottom of the mounting base. A translational limiting mechanism is provided at the bottom of the mounting base, cooperating with the connecting end of the double torsion spring to guide and radially limit the movement of the connecting end. This invention uses double torsion springs instead of the traditional single-sided spring structure, providing a more balanced and stable reset force for the detection lever, ensuring the consistency and accuracy of the detection lever's reset action. Simultaneously, the double-sided support structure significantly reduces the risk of large deformation of the spring due to external force interference, fundamentally avoiding the problem of the spring detaching from the preset mounting slot.

The utility model provides a kind of power plant thermal cable temperature detection device, it is mainly related to cable temperature detection equipment field.A kind of power plant thermal cable temperature detection device, including clamping plate support plate.The utility model has the beneficial effect that: by clamping plate support plate setting clamping plate support plate support left and right two groups of clamping plate, by temperature sensor inside two side clamping plates installation detects and early warning work to cable temperature, set the two groups of pulley support plate that can be width adjusted between each other on clamping plate upper portion, further can adjust device width to different specifications cable, and one side between the two groups of pulley support plate is set by the pulley supported by spring, so that it can be positioned in the middle of pulley support plate by the spring set on both sides and positioning to prevent device from deflecting, further the other side between the two groups of pulley support plate is set by the pulley driven device driven by servo motor and moves on the upper portion of cable, realizes device self-moving and carries out temperature measurement work to different positions of cable.

The utility model provides a kind of ball valve core clamping machining equipment, it includes machine table, punching device, splash-proof device and clamping device;The punching device is located on the machine table;The splash-proof device includes base and splash-proof cover, the machine table is on the base, the splash-proof cover is hinged with the base, first space is formed between the splash-proof cover and the base;Opening for the machining end of punching device is equipped on the splash-proof cover;The clamping device includes first drive block, shell member and multiple clamping units arranged in the shell member interior;Multiple guide slots are formed on the shell member;Each clamping unit has a terminal portion for performing clamping action, and the terminal portion extends through a guide slot correspondingly;Multiple clamping units act in concert to clamp ball valve core.The utility model solves the problem that the clamping force of traditional equipment depends on manual adjustment and is limited in adaptability.

The utility model discloses a T-shaped nut, and relates to the technical field of shoe production and processing. The nut seat comprises the nut seat and the fixing mechanism, the fixing mechanism comprises the sliding groove, the fixing mechanism is arranged, the sliding groove in the fixing mechanism is matched with the sliding rod, the sliding rod is provided with a plurality of inserting holes, the position and the fixing point of the sliding rod are flexibly adjusted, and therefore the nut seat can adapt to fixing grooves of different specifications and shapes. The supporting block is tightly attached to the opening of the fixing groove, the contact area and friction force between the nut and the fixing groove are increased, the fixing stability and reliability are improved, when an external bolt is screwed down, the supporting block provides additional supporting force for the nut, the nut base is prevented from rotating, the vertical relation between the nut and the fixing groove is ensured, and the nut is prevented from rotating. The plurality of convex blocks on the abutting surfaces of the two sides of the nut head remarkably increase the contact area and friction force between the nut head and the fixing groove, and the stability of the nut can be kept in the screwing process.

The utility model relates to the technical field of water-soluble fertilizer stirring devices, and discloses a water-soluble fertilizer raw material multi-stage spiral stirrer which comprises a stirring barrel, and a cover plate is movably clamped at the top end of the stirring barrel; a stirring assembly is arranged at the bottom end of the cover plate, the stirring assembly comprises a stirring main shaft and a plurality of groups of stirring auxiliary shafts, and stirring blades are fixedly mounted on the outer wall surfaces of the stirring main shaft and the stirring auxiliary shafts; the second-stage stirring unit comprises a second-stage stirring main shaft and a spiral blade; and the driving assembly comprises a first gear, a second gear and a transmission part. A stirring assembly, a stirring main shaft and multiple groups of stirring auxiliary shafts are matched with stirring blades to stir water-soluble fertilizer raw materials in a stirring barrel cavity, the stirring range is wide, a secondary stirring unit is arranged, a secondary stirring main shaft is matched with spiral blades to stir the raw materials at the bottom end in the stirring barrel cavity, the raw materials are thrown upwards, and the raw materials are prevented from sinking to the bottom; the stirring efficiency of the equipment is further improved.

The utility model discloses a kind of reinforcing cross arm holding hardware for electric overhead line, including cross arm body and fixing part, the fixing part includes two longitudinal beams and M block, the M block is located between two longitudinal beams, and it is fixedly connected with two longitudinal beams one-to-one, two longitudinal beams are provided with two groups of more than one through hole pair, two groups of more than one through hole pair are distributed in the both sides of cross arm body, and each group of through hole pair includes two through holes, and each group of through hole pair is provided with a U-shaped hoop corresponding to each group of through hole pair.The utility model reinforcing cross arm holding hardware for electric overhead line, by setting the fixing part, two groups of more than one through hole pair are set on the two longitudinal beams of the fixing part, and two more than one U-shaped hoop is used to hold tightly and fix electric pole, two more than one U-shaped hoop can not only be horizontally limited, and when two U-shaped hoops are formed by two different positions and electric pole Limit, two U-shaped hoops and the cross arm body fixed by it can also prevent two U-shaped hoops from yawing and tilting.

This utility model relates to an automatic underwater screening device, comprising a main frame, a water tank, a housing, a screening fixture, and a screening fixture drive mechanism. The main frame and water tank are mounted on the housing, with the main frame located outside the water tank. The screening fixture drive mechanism is installed on the upper part of the main frame. The screening fixture drive mechanism includes a vibration source fixture, a linear bearing mounting bracket, a linear bearing, a tie rod, and a chain. The vibration source fixture and the linear bearing mounting bracket are mounted on the upper part of the main frame, and the linear bearing is mounted on the linear bearing mounting bracket. The tie rod is arranged vertically. The advantages of this utility model are: by integrating the main frame, water tank, housing, screening fixture, and drive mechanism into one unit, the equipment size is significantly reduced, facilitating transportation and installation, and solving the problems of large size and complex assembly of traditional split-type equipment.

The utility model provides a connecting structure between power transmission shafts for a vehicle. The connecting structure does not need to increase parts or improve the precision of the parts, can restrain the bending of the shafts at an embedding part, and also can ensure the assembling and disassembling performance. In the spline fitting (spline fitting part (54)) of the C shaft (52) and the FD shaft (56), the rear end of the insertion direction of the top surface (54a1) of the outer diameter side spline teeth (54a) and the rear end of the insertion direction of the top surface (54b1) of the inner diameter side spline teeth (54b) are provided with platform-shaped convex parts (54a2, 54b2) for reducing the gap during the fitting, or the convex parts (54a2, 54b2) are provided at the rear end of the insertion direction of the top surface (54a1) of the outer diameter side spline teeth (54a) and the rear end of the insertion direction of the top surface (54b1) of the inner diameter side spline teeth (54b). Table-shaped protrusions (54a3, 54b3) are provided at the tip in the insertion direction of the top surface (54a1) of the outer-diameter-side spline teeth (54a) and at the tip in the insertion direction of the top surface (54b1) of the inner-diameter-side spline teeth (54b), said protrusions (54a3, 54b3) reducing gaps during fitting. As a result, a gap between both ends of the spline fitting part (54) is reduced, and deflection of the C shaft (52) and the FD shaft (56) at the spline fitting part (54) is suppressed.

The invention discloses a rotating disc type automatic pin inserting device for stator PINs, and relates to the technical field of pin inserting. The device comprises a base. Through the arrangement of the self-adaptive clamping equipment, the two bosses horizontally move in the opposite direction under the limiting effect of the two sliding balls, the two clamping bases are driven to move in the opposite direction to clamp the two sides of the stator, the following needle inserting procedure of the stator is fixed, the simple fixing mode is adopted, and compared with other manual fixing modes, the process is simple, and the production efficiency is improved. The operation speed of a worker can follow the mechanical operation speed of the PIN double-shaft manipulator and the hollow rotating platform through the simple process, the working requirement of the feeding process is met, and meanwhile compared with automatic fixing of a stator through modern process automatic production equipment, the production efficiency is improved, and the production cost is reduced. The same fixing effect as that of the equipment is achieved by adding electronic equipment such as the electric cylinder and the timing starting module, and on the basis of pin insertion automation of the equipment, electronic elements are additionally added, so that the manufacturing cost of production equipment is additionally increased.

The utility model belongs to valve technical field relates to a low temperature safety valve, including the valve body, the valve body is sequentially provided with the valve core, spring and the screw bush, the valve core is slidably connected in the valve body, the screw bush is connected in the valve body through the thread, the periphery of valve core and the screw bush is equipped with a plurality of air groove, the spring is compressed between the valve core and the screw bush, be equipped with the valve rod in the valve body, one end of valve rod is connected with the valve core, the other end of valve rod passes the spring and the screw bush, the screw bush is connected with the anti -loose subassembly. The utility model through the stop piece and the limiting groove can prevent the gasket deflection, through the anti -slip tooth between the gasket and the screw bush, can prevent the screw bush deflection loose, avoids the security risk that the safety valve setting pressure change leads to because the screw bush loosens.

This utility model belongs to the field of kitchenware manufacturing, specifically a sealing device for cast iron woks. It includes a main body with a movable module inside, a heating module above the movable module, a limiting module on the right side of the heating module, and a striking module on the right side of the limiting module. The striking module includes a fixed plate, a limiting block, an electric rotating shaft, an extension arm, a wear-resistant pad, a vibration motor, and a striking hammer. The limiting block is installed on the left side of the fixed plate, and an electric rotating shaft is located inside the limiting block. An extension arm is installed on the left side of the electric rotating shaft, and a wear-resistant pad is adhered to the end of the extension arm. This utility model provides more uniform force and a faster striking frequency when sealing the edge of the wok, effectively reducing the labor intensity of operators. It is adjustable and can seal woks of different sizes. It also has a heat insulation effect, effectively isolating heat and reducing safety hazards.

The invention provides a split type construction device for a groove pipeline and a construction method of the split type construction device for the groove pipeline, a spreading equipment vehicle and a tamping vehicle are independently moving equipment, and spreading equipment on the spreading equipment vehicle is used for spreading materials for a groove; a tamping device on the tamping vehicle tamps the materials in the groove; a clamping pipe butt joint device is arranged between the spreading equipment vehicle and the tamping vehicle, hoisting equipment is arranged at the two ends of the clamping pipe butt joint device, and the two hoisting equipment are slidably connected with sliding rails on one sides of the tops of the spreading equipment vehicle and the tamping vehicle correspondingly. The two vehicles realize macro and micro precise collaborative alignment locking based on a GPS and an infrared device; in the pipeline grabbing and butt joint stage, the system fuses laser radar three-dimensional point cloud and camera two-dimensional visual features, constructs a high-frequency three-dimensional geometric topology model through a heterogeneous bimodal space-time registration algorithm, and controls a hydraulic telescopic cylinder to act in combination with a self-adaptive rigid servo feedback closed loop. And the butt joint claw is guided to accurately anchor the old pipeline and stably push the new pipeline.

This utility model relates to a jack stabilizing device, including a base, a support mechanism, an anti-tipping component, and a jack body. The support mechanism is mounted on the base, and anti-tipping components are mounted on both the front and rear sides of the base. This jack stabilizing device, through the support mechanism, firstly uses a combination of a bidirectional threaded rod and movable blocks. When the handwheel is turned, the bidirectional threaded rod synchronously drives the movable blocks on both sides to move towards or away from each other, flexibly adjusting the distance between the two support blocks. Then, a limiting guide plate constrains the movement direction of the movable blocks, preventing them from deflecting or tilting when the bidirectional threaded rod rotates. Finally, the support blocks are connected to a rotating hinge seat, allowing the support blocks to rotate slightly around the hinge point. This design allows the support blocks to adaptively adjust their posture according to the tilt angle of the jack body or the shape of the support surface, better conforming to the support parts of the jack, reducing local stress concentration, and improving the reliability of the support.

The utility model relates to the technical field of heat exchangers, in particular to a novel flexible graphite corrugated tooth composite gasket, which is formed by machining upper corrugated teeth on the upper surface and the lower surface of a planar steel plate or steel belt respectively. Graphite is adhered to the upper surface and the lower surface of the gasket through an adhesive, so that a graphite layer is formed on each of the upper surface and the lower surface of the gasket; a parting strip assembly is further arranged on the inner side of the gasket. When the corrugated tooth gasket is used, the compression ratio of the corrugated tooth gasket can be provided through the graphite layer, the rebound rate of the corrugated tooth gasket can be guaranteed through the gasket metal framework, the gasket can keep strong sealing, and it can be guaranteed that the sealing effect is not affected under the condition of pressure and temperature fluctuation.

The utility model relates to a kind of sample bottle bottle-opening device, sampling device and stereoscopic structure detection device, it includes drive mechanism, screw cap mechanism, fixed mechanism and tray mechanism, wherein, the support module of tray mechanism includes several modularized racks, rack can make the sample bottle suspended on it Setting;Screw cap mechanism can be clamped to sample bottle, to make under the driving effect of drive mechanism drive sample bottle to carry out multidimensional motion, and can be transferred to the sample bottle placed on tray mechanism to fixed mechanism;The bottle body support plate of fixed mechanism can support the bottle bottom of sample bottle, and by bottle gripper from the opposite side of sample bottle Clamping, to realize the limiting of the bottle body of sample bottle;When the bottle body of sample bottle is limited by fixed mechanism, the bottle-opening gripper of screw cap mechanism can make the bottle cap of sample bottle be limited by the way of tightening bottle-opening gripper, and by bottle-opening motor drive bottle-opening gripper drive bottle cap to rotate.

The utility model provides a robot solar panel folding device, and mainly relates to the field of search and rescue robot equipment. A robot solar panel folding device comprises a solar folding panel and a bottom plate. The beneficial effects of the utility model are that through the arrangement of the solar panel which can be folded and stored and the arrangement of the solar panel folding storage bin, the solar panel can be driven by the power device to be folded and stored in the folding storage bin; furthermore, track rods capable of horizontally moving left and right are arranged on the two sides of the device to limit the folding position of the solar panel to prevent deflection, an inclined plate structure is further arranged on the power structure to adjust the width of the track rods on the two sides, and after the solar panel is unfolded, the track rods on the two sides move towards the inner side to limit the solar panel folding mechanism; furthermore, a solar folding plate bin cover is arranged on the rear portion of the power device to shield an opening of the folding storage bin, and then the solar panel is further protected.

This invention relates to the field of sorting devices, and more particularly to an oat flake air-separation device and its process. The device comprises: a frame; a feeding device mounted on the frame for receiving and spreading oat flakes; a guide trough connected to the outlet of the feeding device for slow conveying of the oat flakes; a sorting section located below the guide trough, with a built-in camera for visually identifying impurities; and a separating trough located below the sorting section, including a waste trough. The feeding device includes a discharge device comprising a trough and a base, a feeding plate, and multiple second guide plates arranged in a stepped, staggered pattern along the material conveying direction to ensure a smooth transition and gradual thinning of the oat flakes. A through-slot is formed in the center of each second guide plate, and the nozzle of the pusher is precisely located within this through-slot, with the nozzle position accurately aligned with the through-slot to ensure that the airflow fully acts on the oat flakes.

The utility model discloses a lock unit, adjusting mechanism and spacing sub -assembly relates to the technical field of automobile parts to at least solve the existing pickup truck tail box cover and the connecting assembly of car body insufficient constraint to multidirectional displacement, resulting in the problem that the tail box cover is easy to displace or deflect in the vehicle driving, including lock tongue, be configured as limit the relative displacement of pickup truck tail box with tail box cover in third direction, adjuster, with Lockable connection with lock tongue, be configured as change the contact range of lock tongue with pickup truck tail box, fender, be configured as limit the relative displacement of pickup truck tail box with tail box cover in second direction or first direction. Through the combination design of lock tongue limit third direction displacement and fender limit second direction displacement, realize the double restraint of tail box cover in transverse and longitudinal, cooperate with the locking structure of vertical direction, form three -dimensional spacing system, effectively prevent the displacement or deflection of cover body in the vehicle driving.

The utility model relates to the technical field of household appliances, and discloses a radar mounting assembly for an air conditioner, the air conditioner is provided with a radar element, and the radar element is used for acquiring the position condition of a user. The radar element can be installed on the installation plate and clamped in the first clamping groove to be located at the first position or clamped in the second clamping groove to be located at the second position. According to the arrangement, the radar element can be fixed through the first clamping groove or the second clamping groove, so that the radar element is prevented from deflecting, and the use experience of a user is improved. Meanwhile, the utility model further discloses the air conditioner.

This invention relates to the field of vertical milling and turning technology, and discloses a vertical milling and turning composite machining center, including a machining table, a support frame, a vertical cantilever, a drive motor, and a drive shaft. A composite machining mechanism for switching machining types is mounted on the side of the vertical cantilever; a switching mechanism for changing the workpiece's motion state according to the machining type is provided below the composite machining mechanism; a spraying mechanism for changing the coolant's application according to the machining type is provided on the upper surface of the machining table; a clamping mechanism for fixing a ring-shaped workpiece is provided at the top of the switching mechanism; the composite machining mechanism includes a sliding frame plate, with two double-toothed plates slidably connected inside the sliding frame plate. This invention utilizes the forward and reverse directions of the vertical cantilever's lifting stroke to correspond to different machining actions, improving the continuity of actions and machining efficiency, and ensuring the positional stability and synchronization accuracy of the milling cutter and drill bit near the workpiece.

The application relates to a barrel cover lifting device for a stirring cylinder, and relates to the technical field of material stirring equipment.The barrel cover lifting device comprises a rack, a lifting frame, a lifting assembly and a connecting assembly.The rack is installed on one side of the cylinder, and the rack is provided with the barrel cover.The lifting frame is arranged on the rack in a liftable mode.The lifting assembly is installed on the rack, and is used for driving the lifting frame to lift.The connecting assembly is installed on the lifting frame, and is used for mounting the barrel cover on the lifting frame.The opening and closing process of the barrel cover is rapid and stable, the preparation time required for feeding, cleaning or maintenance is greatly shortened, and the overall operation efficiency and the production rhythm of the equipment are effectively improved.

This invention discloses an electric valve, including a valve body component, a valve core component, a bracket, and a valve cover. The valve body component includes a valve body and a mounting seat. The valve core component is at least partially located in a valve cavity inside the valve body. The mounting seat is located on one side of the valve body and protrudes outward relative to the valve body. The bracket abuts against the mounting seat, and the valve cover is sleeved on the bracket. The valve cover and the mounting seat are detachably connected, and the abutment between the valve cover and the bracket restricts the axial displacement of the bracket. The mounting seat includes a positioning surface and a positioning structure, and the bracket includes a mating surface and a mating structure. The mounting surface abuts against the mating surface, and the positioning structure and the mating structure are interlocked to restrict the circumferential rotation of the bracket relative to the mounting seat. There are two positioning structures, spaced apart along the circumference of the positioning surface. This invention, by providing an interlocking positioning structure and a mating structure between the bracket and the mounting seat of the electric valve, prevents the bracket from shifting or deflecting due to the rotation of the valve core during the operation of the solenoid valve.

This invention relates to the field of food processing equipment technology, and discloses a food processing machine with stable operation, including a mixing cup and a main unit equipped with a motor and a reduction mechanism. The reduction mechanism includes a fixed gear ring, a double gear, a moving gear ring, and a planetary carrier that cooperate with each other. The double gear includes a gear with a shaft hole and a gear shaft passing through the shaft hole. The gear shaft and the motor shaft are arranged side by side, and the motor shaft drives the gear and gear shaft to rotate synchronously. The gear includes an upper gear that meshes with the fixed gear ring and a lower gear that meshes with the moving gear ring. The shaft hole wall is provided with a wear-resistant part, which surrounds the gear shaft to limit the radial movement of the gear shaft. The outer surface of the wear-resistant part is fixedly connected to the shaft hole wall, and a heat dissipation gap is provided between the inner surface of the wear-resistant part and the gear shaft. The axial height h2 of the wear-resistant part and the shaft hole wall height h1 satisfy 1 / 2h1<h2≤h1-2mm. This avoids direct contact between the gear shaft and the shaft hole, provides good wear resistance to the shaft hole, ensures good alignment between the gear and the rotating shaft, and ensures stable operation.

The utility model belongs to the technical field of kitchen appliances, and discloses a food processor which comprises a stirring cup and a cutter assembly detachably installed in the stirring cup, the cutter assembly comprises an upper shell, a lower shell and a shaft sleeve, the upper shell and the lower shell define an installation cavity, the shaft sleeve is located in the installation cavity, and a bearing is installed in the shaft sleeve. The cutter assembly further comprises a transmission shaft, a metal magnetic isolation disc fixed to the lower end of the transmission shaft into a whole and a permanent magnet fixed to the lower surface of the magnetic isolation disc, the permanent magnet is located in the installation cavity, and the transmission shaft is provided with an upper limiting part and a lower limiting part in a protruding mode and installed on the bearing from bottom to top in a penetrating mode. The upper limiting part detachably sleeves the periphery of the transmission shaft and abuts against the upper end of the bearing, and the upper end of the transmission shaft extends out of the upper shell and is connected with a blade. The working stability of the transmission shaft is improved, noise is reduced, the cutter assembly structure is simplified, the acting force between the driving magnetic disc and the permanent magnet is enhanced, synchronous rotation of the driven magnetic disc and the driving magnetic disc is achieved, and the transmission efficiency is improved.

This utility model discloses a funnel-shaped flow-dividing extrusion die, including an upper die and a lower die. The upper die has adjacent small and large die cores on the discharge side. Multiple through-flow holes are provided on the upper die, including a funnel-shaped hole. The inlet size of the funnel-shaped hole is larger than the outlet size. The outlet of the funnel-shaped hole is offset towards the side closer to the small die core, relative to the center of its inlet area. The outlet of the funnel-shaped hole is located between the small and large die cores, and its area partially overlaps with the large die core, while the small die core is outside its outlet area. This utility model uses a funnel-shaped flow-dividing hole between the die cores, with a large inlet and a small outlet, thereby reducing the flow velocity in the middle while ensuring material intake, reducing the pressure on the small die core, protecting it from swaying, and ensuring the profile wall thickness meets requirements.