58results about How to "Enough elasticity" patented technology

The invention relates to an actuating device (1) used for devices with a heat source (10), which comprises a casing (2), a first elastomer (3) and a second elastomer (4) that are accommodated in the casing (2), an actuating part (5), as well as a transmission part (6), wherein the actuating part (5) is arranged between the first elastomer (3) and the second elastomer (4); and one end of the actuating part (5) is movably connected with one end of the transmission part (6). The actuating device (1) is characterized in that the elastic force of the first elastomer (3) and / or the second elastomer (4) can be changed by means of temperature and the actuating part (5) is prompted to move linearly in the casing (2) to control the position of the transmission part (6). The actuating device (1) has the advantages of small size, high reliability, simple structure, low cost, and less noise produced during the working. Besides, the invention further provides a cover plate component provided with the actuating device, as well as a lighting device equipped with the cover plate component.

A food tank is provided with a heat insulation body, and the heat insulation body is provided with an opening of a wide mouth receiving food; a throat member is attached to a lantern ring and the throat portion is screwed in a body of the wide mouth, so the lantern ring can be connected to the opening of the food tank. The throat member comprises a pad ring, used to sealing the throat portion to the body, on a lower end. A cover is attached to the lantern ring and comprises a central protrusion portion; the central protrusion portion extends to the pad ring of the throat member so as to form sealing contact, thereby sealing the cover to the throat member. A button is arranged in a passage of the cover, and is biasedly pressed by an elastic piece so as to move to a connecting position, so the button can be connected with the lantern ring in the opening portion of the lantern ring, thereby fixing the cover to the lantern. In one embodiment, a linear ring is provided for connecting the button.

The invention relates to a contact probe and socket for testing semiconductor chips. The contact probe for testing semiconductor chips, comprises: a nonconductive elastic plate having main through-holes corresponding to contact terminals of a test target; plungers coupled on upper sides of the main through-holes, each having a plunger head that is elastically supported by the elastic plate and a plunger body that extends downwards from a center of the plunger head; and contact pins coupled on lower sides of the main through-holes, each having a receiving hole contacting the plunger body of each plunger at a center thereof. Thus, the contact probe employs a simple structure capable of coupling the plungers to the nonconductive elastic plate and elastically supporting the plungers, so that they can be easily manufactured, improve the signal pass of test electric current to secure test reliability, and be manufactured at a subminiature size suitable for equipment for testing semiconductor chips, which are gradually becoming complicated due to technical development.

The invention relates to the field of manufacturing of automobile parts, in particular to an anti-loose self-locking nut simple in structure, capable of effectively preventing the nut from falling off, convenient to mount and dismount and capable of being reused. The anti-loose self-locking nut comprises a nut body and a nut collar rotatably arranged at the lower end of the nut body, a threaded hole is penetratingly arranged in the middle of the nut body, a stepped groove is formed in the upper end of the nut body, a spring steel piece is placed in the stepped groove, a bending portion used for clamping the spring steel piece in the stepped groove is arranged on the upper portion of the stepped groove, the spring steel piece comprises an annular piece and more than two clamping pieces evenly arranged at the upper end of the annular piece and protruding along the radial direction, the annular piece is formed by a tilt surface rotating and scanning around the axis of the threaded hole, the clamping piece protrudes inwardly to extend into the threaded hole of the nut body, and the extending length of the clamping piece is located between the inner diameter and outer diameter of the threaded hole. The invention further comprises a production method of the anti-loose self-locking nut.

The invention relates to an air pump water heater simultaneously provided with a water storage box and a water gaining box. The air pump water pump heater simultaneously provided with the water storage box and the water gaining box comprises a water heater body, the water storage box and the water gaining box. The water storage box comprises a common box body, inserting outer pipes, fixing hanging lugs and an automatic bottom plug. The water gaining box comprises a standby box body, water inlet inserting drums, a water level adjusting device, a water speed adjusting device and a water outlet valve. According to the air pump water heater simultaneously provided with the water storage box and the water gaining box, the water gaining box can take and use hot water in the water storage box for other uses, normal using of the water storage box is not influenced, meanwhile, functions of the air pump water heater are greatly expanded, assembly and disassembly of the water gaining box are convenient, the water gaining box can slightly rotate a first rotating dish, the maximum water storage amount of the water storage box can be adjusted, the water gaining box can slightly rotate a second rotating dish, the water flow speed can be adjusted, and the water storage box can adjust damping during rising of a sealed plug.

The invention relates to a hand-held carton sealing mechanism, which includes a handle and a sealing device. The sealing device is provided with an adhesive tape roller, the front part of the guard plate is provided with a front rotating shaft, and the rear part is provided with a rear rotating shaft. Shaft, the front rotating shaft is connected with the front rotating block, the lower part of the front rotating block is provided with the front sealing cylinder, the rear rotating shaft is connected with the rear rotating block, and the lower part of the rear rotating block is provided with the rear The part seals the rubber tube, and the inner side of the middle part of the front rotating block is connected with a movable plate, the upper part of the movable plate is provided with a fixed shaft, the lower part is connected with a cutter installation plate, the rear part of the cutter installation plate is provided with a cutter, and the middle part is provided with a knife Plate rotating shaft, the front part is equipped with a knife plate movable shaft, and it is connected with the fixed rotating shaft through the front movable spring; the present invention adopts hand-held box sealing, which can adapt to box sealing of various sizes, and can adjust the sealing glue through the spring The lower pressure limit of the barrel ensures a good sealing effect and does not crush the upper hollow carton.

A secondary core pulling mechanism for an injection molding die with honeycomb-shaped side face vertical plates comprises an upper compound plate and a lower compound plate. A cushion plate is arranged below the upper compound plate, and a cavity is formed below the cushion plate. The lower compound plate is provided with die feet. The part, between the die feet, of the lower compound plate is provided with an upper centre plate, a lower centre plate and a centre. Each die foot is provided with a core internally provided with a core insert, wherein the core is provided with a side core pulling sliding block internally provided with a side centre, a side centre plate is arranged on the outer side of the side core pulling sliding block, the side centre is connected with the side centre plate, a plastic piece is arranged among the core insert, the side core pulling sliding block, the side centre and the cavity, the vertical plates are manufactured on the two sides of the plastic piece, and honeycomb grooves are formed in the outer walls of the vertical plates. The secondary core pulling mechanism is characterized in that a centre bottom plate is arranged on the outer wall of each side centre plate and internally provided with a spring, wherein one side of the spring makes contact with the centre bottom plate, the other side of the spring penetrates the corresponding side centre plate to make contact with the corresponding side core pulling sliding block, a protruding block is manufactured on the outer wall of one side of the centre bottom plate, the outer wall of the protruding block makes contact with the inner wall of the cavity, an oblique guide column is arranged in the cavity, an oblique guiding hole is formed in the side core pulling sliding block, an oil cylinder is arranged on the outer wall of the core, and an oil cylinder piston rod is connected with the side core pulling sliding block.

The invention provides an elastic massage mesh, and a massage mattress, sole massage device and massage head pillow using the elastic massage mesh. The elastic massage mesh is integrally made of soft material and comprises a bottom plate, a plurality of upwardly raised supports are distributed on the bottom plate at intervals, the center of each support is provided with a recess portion for receiving a massage ball, and the bottom of each recess portion is provided with an air hole; a hollow structure is formed between the outer wall of each support and the wall of the corresponding recess portion and is provided with a plurality of reinforcing ribs transversely arranged, the reinforcing ribs are positioned between the outer wall of the support and the wall of the recess portion and are downwardly extended from the top of the support, and a predetermined gap is maintained between the bottom of each reinforcing rib and a horizontal plane of the upper surface of the bottom plate. As the elastic massage mesh is designed elaborately, the massage balls are imparted good stable elasticity by the mechanical design, and sufficient elasticity is provided; repeated collapse or displacement rarely occurs, and new massage comfort is provided for a user during using.

The invention relates to a control rod steering reset structure of an electric balance car. The technical problem that control rod steering reset of an existing electric balance car is low in accuracy is solved. The structure is arranged between a pedal seat and a control rod of the electric balance car, and comprises a rotary shaft which is arranged on the lower portion of the control rod and can rotate along with swing of the control rod, the rotary shaft and the pedal seat are rotationally connected, and when the control rod does not bear exogenic action, the control rod is kept in the middle. An elastic sheet is arranged in the pedal seat, when the control rod swings and drives the rotary shaft to rotate in any direction accordingly, the elastic sheet can be driven by the rotary shaft to deform, and therefore the rotary shaft has a reverse rotating trend, and the end of the elastic sheet is located on the outer side of the rotary shaft. The control rod steering reset structure has the advantages that the control rod steering reset structure is simple and reasonable, good in stability and good in reset effect, capable of ensuring that the control rod can be reset to the middle position accurately in time and convenient to mount and demount; the elastic sheet is made from a manganese steel sheet, and enough elastic force can be provided.

Disclosed is a seat recliner for a vehicle, which comprises: a first plate, and a second plate coupled to the first plate so as to form an internal space and rotating relative to the first plate; a lock gear arranged in the internal space and having outer teeth formed therein and meshing with inner teeth of the first plate or second plate, and a lock cam which moves the lock gear forward or backward through a rotational movement; an input member, one end of which penetrates the first plate and is coupled to the center portion of the lock cam in the internal space so as to transmit a rotational force to the lock cam, and the other end of which is exposed to the outside of the first plate; and an elastic member having a shape in which the elastic member is wound on the outer circumference of the other exposed end of the input member, and caught by the input member at one end thereof and caught by the outer surface of the first plate at the other end thereof so as to provide the input member with a restoring force after the input member is rotated.

The invention discloses a high-efficiency feeding mechanism for conveying columnar materials for constructional engineering. The high-efficiency feeding mechanism comprises a supporting mechanism, a limiting mechanism, a connecting bottom plate, a mounting clamping plate, a transmission mechanism, a connecting motor, a turnove plate, a transmission toothed plate, a limiting supporting plate, a connecting sliding groove, a limiting rotating plate, a limiting clamping shaft and a connecting sleeve plate. By arranging the limiting mechanism and the transmission mechanism, when the columnar materials are fed, the connecting motor can drive the transmission toothed plate to circularly rotate outside the transmission mechanism through the turnover plate, then the transmission toothed plate can drive the transmission mechanism to circularly rotate, therefore, the transmission mechanism can conveniently drive the limiting rotating plate and the limiting clamping shaft to conduct cyclic displacement in the connecting sliding groove later, then the limiting clamping shaft can be matched with the connecting sleeve plate so that the limiting mechanism can conduct cyclic switching in the horizontal direction and the vertical direction, the stability of follow-up clamping and feeding of the columnar materials is improved, and the working and transmission efficiency of the mechanism is improved.

Provided are a press-fit terminal and a connector whereby damage to the substrate and breakage of contacts can be minimized, and consistent insertion force and retaining force can be attained. The press-fit terminal (10) comprises a wire material (11) of predetermined length. At a first end of wire material (11) is formed a distal end part (12) for insertion into a substrate, and at the other end is formed a connecting part (13) for connection to a corresponding terminal. A press-fit part (14) for pressure fitting into the substrate is formed at the distal end part (12) side of the wire material (11), and a shoulder part (16) is formed to the connecting part (13) side from the press-fit part (14).

The invention discloses a mechanical underground sleeve valve comprising a valve body, a switch tool, a protecting sliding sleeve and a valve plate. The valve body comprises an upper joint, a valve seat joint, a connection sleeve, a valve seat and a lower joint. The valve plate is hinged onto the valve seat, the protecting sliding sleeve is mounted in the valve body, the outer wall of the protecting sliding sleeve matches with the inner wall of the valve seat joint and the inner wall of the valve seat at the same time, and the lower end face of the protecting sliding sleeve is disposed on a step of the lower joint, a positioning lock is mounted on the inner wall of the connection sleeve, and a positioning groove matching with the positioning lock is mounted on the outer wall of the protecting sliding sleeve. The protecting sliding sleeve is arranged in the valve body, a conventional well cementation technology can be adopted for well cementation work, and working difficulty is reduced. An externally embedded switch sliding sleeve is adopted to be fixedly connected with a drilling tool in a shearing manner, so that during the whole process of placing the switch tool into a well, the risk of early failure of the valve resulted from that a drilling head is scrapped and elements and mechanisms in the sleeve valve are worn out is avoided.

The invention provides an electrode thermostat container. A container body of the thermostat container has a horizontal structure and comprises an inner layer and an outer layer; a glass fiber thermal insulation layer is arranged between the inner layer and the outer layer; an electrical heating plate is adhered to an inner wall of the inner layer; a tilted support plate is arranged in an inner chamber of the container body; a discharge port is formed on a container body wall at the bottom end of the tilted support plate; a spring piece is arranged on a container body wall beside the discharge port; the spring piece is in contact with the discharge port; and a universal wheel is arranged at the bottom of the container body of the thermostat container. The electrode discharge port is provided with the spring piece with enough elastic force so as to effectively ensure that an electrode is sealed in the thermostat container; and when the electrode thermostat container is used, only the spring piece is pressed by fingers, so that the spring piece is separated from the discharge port, and the electrode is ejected from the inside of the container body; therefore, frequent cover opening is avoided, and production efficiency is improved; meanwhile, the temperature reduction of the electrode thermostat container caused by the frequent opening and closing of the electrode thermostat container to influence the thermal insulation is avoided, and the service life of the electrode thermostat container is prolonged.

The invention discloses grinding equipment for square tube polishing of a filling machine. The grinding equipment comprises a lower plate, supporting plates, servo motors, a fixing plate and a grinding assembly, the supporting plates and the two symmetrical servo motors are fixed at the top of the lower plate, the fixing plate is fixed at the tops of the supporting plates, a power output shaft at the top of each servo motor is a rotating shaft, a driving cylinder with a top opening is fixed to the top of each rotating shaft, a transmission rod is movably embedded into the top of each driving cylinder, a supporting disc is fixed to the top of each transmission rod, and a sleeving block is further fixed to the top of each supporting disc; and a grinding assembly for grinding through an elastic material is fixed to the top of the fixing plate through a supporting rod. The joint of a belt and abrasive paper provides elasticity through tension springs, sufficient elasticity can be ensured in the grinding process, it is ensured that the abrasive paper is completely attached to the surface of a square pipe, the grinding effect is not affected by abrasion of the belt and the abrasive paper, and the advantages of being good in grinding effect and even in grinding are achieved.

The invention discloses a stretching limiting spring, and belongs to the field of mechanical parts. The stretching limiting spring comprises a spring body, a spring base body arranged extending from the spring body to one side, a spring end body arranged extending from the spring body to the other side, and a limiting strip arranged between the end of the spring base body and the end of the springend body. The inner diameter is gradually increased from the end of the spring base body to the direction of the spring body, and the inner diameter is gradually increased from the end of the springend body to the direction of the spring body. The spring body, the spring base body and the spring end body are of an integrated structure. Anticorrosive layers are arranged on the surfaces of the spring body, the spring base body and the spring end body correspondingly. By arranging the limiting strip, the spring is prevented from being excessively stretched, the spring is protected while it is guaranteed that the spring has sufficient elasticity, the structure is simple, and using is convenient.

A food tank is provided with a heat insulation body, and the heat insulation body is provided with an opening of a wide mouth receiving food; a throat member is attached to a lantern ring and the throat portion is screwed in a body of the wide mouth, so the lantern ring can be connected to the opening of the food tank. The throat member comprises a pad ring, used to sealing the throat portion to the body, on a lower end. A cover is attached to the lantern ring and comprises a central protrusion portion; the central protrusion portion extends to the pad ring of the throat member so as to form sealing contact, thereby sealing the cover to the throat member. A button is arranged in a passage of the cover, and is biasedly pressed by an elastic piece so as to move to a connecting position, so the button can be connected with the lantern ring in the opening portion of the lantern ring, thereby fixing the cover to the lantern. In one embodiment, a linear ring is provided for connecting the button.

The invention relates to the technical field of ceiling lamps, in particular to a ceiling lamp with an intelligent module device. The ceiling lamp comprises a ceiling fan main body and the intelligent module device. The ceiling fan main body comprises a hollow hanger rod. The ceiling fan main body further comprises a main body electric wire assembly electrically connected with the ceiling fan main body. A clamping chamber is arranged at the bottom of the ceiling fan main body, the hollow hanger rod downwards stretches into the clamping chamber, and the main body electric wire assembly is arranged in the hollow hanger rod and stretches into the clamping chamber. At least three clamping columns are evenly arranged in the clamping chamber around the axis of the hollow hanger rod. The intelligent module device is cylindrical as a whole. The ceiling lamp has the advantages that the intelligent module device can be conveniently assembled on the ceiling lamp; the situation that the intelligent module device is damaged due to too high vibrating amplitude of the intelligent module device when the ceiling lamp rotates can be prevented; lower cost can also be guaranteed when it is guaranteed that aluminum alloy can provide enough elastic force.

The invention relates to a drawer and a cabinet including the drawer and belongs to the technical field of medical equipment. The drawer comprises a drawer body, a connecting plate, a fixing assembly and a locking assembly. The fixing assembly is located below the drawer body, and the drawer body and the locking assembly are connected through the connecting plate. The locking assembly comprises a lock body, a stop mechanism and a rebound mechanism, wherein the stop mechanism and the rebound mechanism are both located inside the lock body and penetrate through the lock body, and the stop mechanism is matched with the fixing assembly. According to the drawer and the cabinet inducing the drawer, the locking and unlocking operation of the drawer body is achieved through the cooperation of the fixing assembly and the locking assembly, and the safety of medicine control can be easily improved; the drawer and the cabinet including the drawer have the advantages of being low in cost, capable of saving installation space, and high in stability and practicability.

The invention discloses a plug-in assembly, which comprises a lead (20) and a plug-in female head (10) formed by a conductive material, wherein the plug-in female head (10) is provided with an elastic clamping slot provided for the lead (20) to insert, the elastic clamping slot (12) is extruded by the lead (20) when the lead (20) is inserted so as to generate elastic deformation, and the elastic clamping slot (12),which is extruded and generates the elastic deformation, clamps the lead (20) by using an elastic restoring force.

The invention discloses a split reed type overrunning clutch. Wedge-shaped locating grooves are evenly distributed in the inner wall of a body (5) in the circumferential direction. Pin rollers (2) are installed in the wedge-shaped locating grooves respectively. The portion between every two adjacent pin rollers (2) on the circumference is provided with an elastic drive piece. Each elastic drive piece is composed of two reeds (1) which are distributed in the shape of the Chinese character 'ba'. The root portion of each reed (1) is inserted into a groove formed in the inner wall of the body (5), so that each reed (1) is fixed to the body (5). One reed of each elastic drive piece is connected with the corresponding front pin roller (2) on the circumference in an abutting mode, and the other reed of each elastic drive piece is connected with the corresponding back pin roller (2) on the circumference. According to the split reed type overrunning clutch, each elastic drive piece composed of two corresponding split reeds drives the corresponding pin rollers, the structure is compact, machining and assembling are easy, the production cost is low, the synchronism of movement of all the pin rollers can be guaranteed, the reliability of the performance of the overrunning clutch can be improved, and the service life of the overrunning clutch is prolonged.

The invention provides an asphalt mixing and stirring device and a stirring method thereof, and belongs to the technical field of building construction equipment. The asphalt mixing and stirring device comprises a box body vibration mechanism, a stirring box, a forward and reverse rotation stirring mechanism and a shaft body vibration mechanism, and the box body vibration mechanism is connected with the outer side of the box wall of the stirring box; and the forward and reverse rotation stirring mechanism and the shaft body vibration mechanism are both arranged in an inner cavity of the stirring box, and the shaft body vibration mechanism is fixedly connected with the forward and reverse rotation stirring mechanism. The asphalt mixing and stirring device disclosed by the invention is also very suitable for being applied to local repair of pavements or stirring and mixing of a small amount of asphalt concrete materials in remote places due to a small structure.

The invention discloses a part for a massager and the massager with the part. The part is installed inside the massager. The part is characterized in that the part is a ring-shaped body, a center holeof the ring-shaped body is used for sleeving a massage inner core of the massager, and the part has evenly distributed elasticity in the radial direction. The massager includes an outer shell, a cover body, and the massage inner core. The massage inner core is an elastic silicone part and is internally provided with a massage channel, and the massage inner core is arranged inside the shell. The massager is characterized by further including the part for the massager, and the part sleeves outside the massage inner core through the central hole and is located in the range of the massage channel, and the outer part of the part is fixed to the inner side of the shell. The moderate tightness of the massage channel, strong support, timely rebound and convenient fixation can be realized.

The invention discloses a highly stable position-limiting mechanism for CNC machine tool product delivery, which includes a clamping mechanism, a support mechanism and an adjustment mechanism. The upper end surface of the adjustment mechanism is evenly and equidistantly threaded and slidingly connected with four sets of position-limiting mechanisms. A clamping mechanism, and the clamping mechanism includes a clamping head, a chute, a limit slot, a connecting bolt, a threaded hole and a limit block, and the outer end surface of the clamping head is symmetrically provided with a chute close to the middle. In the present invention, by setting the adjusting mechanism, the connecting motor can drive the connecting seat to rotate during the movement, and when the connecting seat rotates, the tooth groove can drive the four sets of connecting gears to rotate together, which is convenient for subsequent power supply for the clamping head , At the same time, the four sets of screw rods are threaded sliding connection with the bottom of the clamping head, and the clamping method of the threaded sliding connection can effectively improve the stability of the clamping.

The invention discloses an L-type reed-type one-way overrunning clutch device. An elastic drive piece is arranged between two adjacent rolling columns (2) on the circumference, the elastic drive piece is provided with two reeds (1), each reed (1) is in an L type, the short arm and a part of the long arm of each reed (1) are inserted into corresponding adaptive grooves in the inner wall of a body (5) in the axial direction, the long arm of one reed (1) of the elastic drive piece is in butt joint with the front rolling column (2) on the circumference, and the long arm of the other reed (1) is in butt joint with the rear rolling column (2) on the circumference. The elastic drive piece formed by two axially inserted reeds is used for driving the rolling columns, the structure is compact, machining and assembling are easy to carry out, production cost is low, axial and radial positioning of the reeds are good, motion synchrony of the rolling columns can be guaranteed, reliability of the overrunning clutch device can be improved, the service life of the overrunning clutch device is longer, and the overrunning clutch device has the advantages of being ingenious in design, easy to modify and the like.

The invention discloses an overrunning clutch with reed axially inserted. An elastic driving part is arranged between two adjacent rollers (2) on the circumference. The elastic driving part has two springs distributed in the shape of "eight". Sheet (1), the reed (1) is composed of a wavy section (1a), a roundabout section (1b) and a straight section (1c), and the wavy section (1a) of each reed (1) is inserted into the body ( 5) In the matching groove correspondingly opened on the inner wall; the straight section (1c) of one reed (1) of the elastic drive part abuts against the previous roller (2) on the circumference, and the straight section (1c) of the other reed (1) Segment (1c) abuts against the last roller (2) on the circumference. The invention consists of two axially inserted reeds to form an elastic drive to drive the rollers. The axial and radial positioning of the reeds is good, which can not only ensure the synchronization of the movement of each roller, but also improve the reliability of the overrunning clutch performance. performance, so that the service life of the overrunning clutch is longer.

The invention provides a bearing assembly and an air conditioner, and relates to the technical field of air conditioners, the bearing assembly comprises a bearing support and a mounting bearing, the bearing support is provided with a mounting through hole, the mounting bearing is rotatably assembled on the mounting through hole, the mounting bearing is provided with a rotating buckle, the bearing support is provided with a rotating clamping hook, and the rotating buckle and the rotating clamping hook are connected through a connecting rod. The rotary buckle can rotate along with the installation bearing so as to clamp the rotary clamping hook and enable the installation bearing to be locked in the installation through hole or separated from the rotary clamping hook and enable the installation bearing to be unlocked from the installation through hole. Compared with the prior art, a tedious screw and screw hole structure is avoided, the installation bearing is fixed through the clamping effect between the rotary buckle and the rotary clamping hook, the disassembly and assembly efficiency is greatly improved, and after-sales installation and maintenance of the whole machine are facilitated.

The invention discloses a highly adaptable multi-form steel mesh mould for indoor construction, which belongs to the field of construction engineering. The present invention includes two sets of main formwork which are arranged up and down correspondingly, the two ends of each set of main formwork are respectively hinged with a first auxiliary formwork and a second auxiliary formwork which are distributed side by side inside and outside, wherein the two sets of first auxiliary formwork corresponding to the same end up and down are respectively hinged. The main formwork is also hinged with connecting rods, the ends of the connecting rods are hinged with positioning rods, and the positioning rods are embedded and slidably installed on the surface of the second auxiliary formwork A positioning mechanism for fixing the position of the positioning rod is correspondingly arranged on the first auxiliary template in the opened positioning groove. The invention overcomes the inconvenience of changing different shapes of the stencil mold in the prior art, which leads to relatively limited application, and can change and adjust the shape of the stencil mold according to actual application requirements, and the application is more flexible and convenient.