51results about How to "Avoid contact friction" patented technology

The invention discloses efficient photovoltaic frame aluminum turnover equipment, and relates to the technical field of aluminum turnover, the efficient photovoltaic frame aluminum turnover equipment comprises a bedplate, four transverse sliding rails are fixedly connected to the top surface of the bedplate, every two transverse sliding rails form a group, a sliding table is slidably connected to the upper portion of each group of transverse sliding rails, the sliding tables are fixedly connected with a supporting frame, and the supporting frame is fixedly connected with a base; the side face of the supporting frame is fixedly connected with side vertical rails, the side, away from the supporting frame, of each side vertical rail is slidably connected with a vertical supporting sliding plate, the middle of each vertical supporting sliding plate is rotatably connected with a rotating shaft, one end of each rotating shaft is provided with a servo motor, and the other end of each rotating shaft is fixedly connected with an overturning fastening mechanism. The two sides of the servo motor are fixedly connected with motor fixing bases. According to the photovoltaic frame material stacking and clamping device, loosening and falling caused by small clamping contact surfaces at the two ends due to material deformation in the overturning process can be prevented, and the stacking and clamping effects of photovoltaic frame materials are improved through multi-term clamping.

The utility model discloses a conveying device for lead frame processing, which belongs to the technical field of lead frame processing and comprises a conveying frame, a plurality of rotating shafts are rotatably arranged in the conveying frame, a protective shell is arranged on the outer side of the conveying frame, one end of each rotating shaft penetrates into the protective shell and is sleeved with a chain wheel, and the other end of each rotating shaft is sleeved with a chain wheel. The multiple chain wheels are in transmission connection through a chain, the outer sides of the multiple rotating shafts are symmetrically sleeved with rolling wheels, the rolling wheels are fixedly connected with the rotating shafts through bolts, bosses used for bearing the lead frame are arranged on the inner sides of the rolling wheels, and an adjusting assembly used for adjusting the installation distance between the rolling wheels on the rotating shafts is arranged in the conveying frame. The lead frame conveying device has the advantages that the lead frame is placed on the boss to be conveyed by arranging the rotating shaft, the idler wheel and the boss, a silver plating area of a product is in a suspended state and does not make contact with the boss and the rotating roller, contact friction of the silver plating area is avoided, and the percent of pass of the product is further improved.

The invention relates to the technical field of product packaging, and discloses a packaging box which comprises a box body, a first cover plate and a second cover plate, the box body is provided with a first opening, the first opening is provided with a first edge and a second edge, the first edge and the second edge are adjacent and flush, the first cover plate is arranged on the first edge and provided with a groove position, and the second cover plate is arranged on the second edge and provided with a groove position. The second cover plate is matched with the groove position, based on the fact that the packaging box is in the closed state, the first cover plate is folded towards the interior of the packaging box along the first edge, the second cover plate is folded towards the interior of the packaging box along the second edge to the groove position, and the first cover plate and the second cover plate are matched to form an inner-layer cover plate covering the first opening. According to the packaging box, the first cover plate and the second cover plate are designed and matched to form the inner-layer cover plate covering the first opening, so that the number of layers of the cover plates of the first opening is reduced, the packaging thickness of the top of the packaging box is reduced, the number of layers of gaps generated during deformation is also reduced, and the overall attractiveness of the packaging box is improved.

A road surface cleaning device for municipal road and bridge construction comprises a storage groove, moving wheels, a lifting mechanism and a sweeping mechanism, the four moving wheels are fixedly arranged at the four corners of the bottom face of the storage groove, the lifting mechanism is arranged in the storage groove, and the sweeping mechanism is arranged on the lifting mechanism; the lifting mechanism comprises first threaded rods, connecting blocks and a transverse frame, the multiple first threaded rods are inserted into the two sides of the storage groove at equal intervals and rotationally connected with the storage groove, one ends of the connecting blocks are fixedly connected with the top of the side wall of the transverse frame, and the other ends of the connecting blocks are arranged on the first threaded rods in a sleeving mode and vertically slide along the storage groove through the first threaded rods; the sweeping mechanism is arranged on the transverse frame. The first threaded rod, the connecting blocks and the transverse frame are arranged, the connecting blocks are fixedly arranged at the two ends of the transverse frame and arranged on the first threaded rod in a sleeving mode, the transverse frame is used in cooperation with the first threaded rod and the connecting blocks to store the sweeping mechanism into the storage groove, long-time contact friction between the sweeping disc and the road surface is avoided, and the sweeping disc is prevented from being abraded; the maintenance cost is reduced.

The utility model discloses a pet food forming device relates to pet food production equipment technical field. Include: forming machine body, and forming machine body is by forming machine main part and cutting structure composition, limit frame mechanism, limit frame mechanism sets up in the front of forming machine main part, and limit frame mechanism is used for making collection frame always open mouth upwards and be located the below of forming machine granule forming area, and limit frame mechanism includes: install round block, and install round block fixed connection in the front of forming machine main part, and rope box, and rope box fixed connection in the front of install round block. The utility model discloses the setting of limit frame mechanism, through install round block, rope box, rotating rod, I -shaped winding wheel, tow rope, I -shaped board, external sleeve, limit frame rod between the cooperation can be collected frame open mouth upwards and limit in the just below of pet food forming machine granule forming area, effectively avoided the condition of deviation and dumping to occur, need not increase cleaning work, reduced labor intensity.

The utility model relates to the technical field of non-woven fabric drying, in particular to a non-woven fabric drying device for paper diaper processing, which comprises a drying box, supporting legs are fixedly connected to four corners of the lower end of the drying box, a controller is fixedly connected to the left portion of the front end of the drying box, and two second guide wheels are fixedly connected to the left end of the drying box. Two first guide wheels are fixedly connected to the right end of the drying box, a non-woven fabric piece is arranged between the two first guide wheels and the two second guide wheels, a notch is formed in the drying box, the left portion of the rear groove wall of the notch and the right portion of the rear groove wall of the notch are movably connected with third guide wheels through bearings, and an auxiliary drying mechanism is connected to the middle of the rear groove wall of the notch. A feeding port is formed in the left end of the drying box, a discharging port is formed in the right end of the drying box, and a plurality of fans are installed on the lower groove wall of the groove opening. According to the non-woven fabric drying device for paper diaper processing, the auxiliary drying mechanism is arranged, so that the drying efficiency of the non-woven fabric is improved.

The utility model discloses a guide assembly for a low-voltage open cabinet drawer, which comprises a lining frame and a sliding block fixedly connected with the drawer, and the inner surface wall of the lining frame is fixedly connected with a sliding rail in sliding fit with the sliding block. According to the invention, the drawer piece is pushed to enable the sliding block to slide along the sliding rail, so that the connector on the drawer piece can be accurately connected with the socket in the cabinet body to complete the guiding of the drawer piece, and when the drawer piece is opened in a large scale, the sliding sleeve can be moved to slide along the sliding plate. The sliding sleeve and the clamping seat are fixed through the fastening rod until the clamping seat sleeves the outer side part of the sliding block to be fully loaded, and the clamping seat realizes local supporting and positioning of the sliding block, so that the weight of the drawer piece can be prevented from completely acting on a small-range area of the sliding rail, the rail is effectively prevented from deforming, and even after the drawer piece is completely combined with a cabinet body, the sliding rail is prevented from being damaged. The drawer can be stably closed by moving the clamping seat to the front side of the drawer piece.

The utility model relates to a lubricating system for a turntable bearing in the technical field of bearing lubrication, which comprises a fixed ring and a rotating ring, and one side of the fixed ring deviating from the rotating ring is hermetically and rotatably connected with a rotating lubricating sleeve; a radial through hole and a radial blind hole are formed in the fixing ring at intervals in the axial direction of the fixing ring, and an opening of the radial blind hole faces the rotary lubricating sleeve; one end face of the fixing ring is further provided with an oil supplementing channel communicated with the radial blind hole. The rotary lubricating sleeve is provided with a sliding hole which is provided with an opening facing the fixing ring and can be communicated with the radial blind hole, and the sliding hole is sequentially provided with an elastic compression piece and a piston from inside to outside; the side face, corresponding to the rotary lubricating sleeve, of the fixing ring is further provided with an axial oil groove, one end of the axial oil groove communicates with the radial penetrating hole, and the other end extends to the axial position of the radial blind hole. Through relative rotation of the rotary lubricating sleeve and the fixing ring, the intermittent communication state of the sliding hole and the radial blind hole or the axial oil groove is controlled, and oil supply according to needs is achieved.

The invention discloses a floating type absolute gravimeter falling body adjusting tool. The falling body adjusting tool comprises a falling body bearing ring, a falling body adjusting device, a suspension supporting structure and a tool support. The falling body is fixedly arranged in the falling body bearing ring; the falling body adjusting device is arranged on the falling body and used for adjusting the mass center of the falling body; the falling body bearing ring is fixed to the tool support in a suspension mode through the suspension supporting structure. According to the floating type absolute gravimeter falling body adjusting tool, the falling body is fixedly installed on the falling body bearing ring, the falling body bearing ring and the falling body on the falling body bearing ring are fixedly supported in a suspension mode, contact friction between the tool and the falling body bearing ring is avoided, the contact friction force is eliminated, meanwhile, the mass center of the falling body is adjusted through the falling body adjusting device, and therefore the falling body adjusting efficiency is improved. The step of measuring by using a high-precision electronic scale is omitted, the adjusting efficiency and the adjusting precision are improved, the centroid deviation of the falling body can be directly observed through gravity, and the centroid deviation observation effect is improved.

The utility model belongs to the technical field of heat preservation curtains, and discloses a heat preservation curtain device used in a cold region, which comprises a rectangular frame structure defined by a roller shutter box, track frames and a base, the track frames are of U-shaped groove structures, two ends of a balance weight lever respectively penetrate into the track frames on two sides, and the base is provided with an opening for the balance weight lever to penetrate into. A first pressing plate is arranged in the rail frame in the vertical direction, a first sliding rod is arranged on one side of the first pressing plate and perpendicularly penetrates through the side wall of the rail frame in a sliding mode, a second pressing plate is arranged at an opening of the base, a second sliding rod is arranged on one side of the second pressing plate and perpendicularly penetrates through the side wall of the base in a sliding mode, and the first pressing plate and the second pressing plate are both used for pressing a curtain. The rail frame and the base are each provided with a locking mechanism, the locking mechanisms are used for fixing the first sliding rod and the second sliding rod respectively, and the curtain is a high-reflection curtain. The curtain is tightly pressed through the first pressing plate and the second pressing plate, cold air is effectively blocked, and the indoor heat preservation effect is improved.

The utility model provides a dynamic sealing device of a turbine pump. The dynamic sealing device at least comprises a shell, a static ring assembly and a dynamic ring. The static ring assembly and the moving ring are arranged in the shell; the static ring assembly comprises a graphite ring, a static ring seat, a corrugated pipe and a rear seat which are sequentially arranged in the shell, and the graphite ring is in contact with the moving ring; the graphite ring is in spherical fit with the static ring seat and is connected with the static ring seat through an anti-rotating pin; one end of the corrugated pipe is connected with the static ring seat, and the other end of the corrugated pipe is connected with the inner wall of the shell through the rear seat; wherein the corrugated pipe is in a compressed state.

The invention discloses an anti-lock axle generator which comprises a transversely-arranged cylinder and a supporting seat, the two ends of the cylinder are connected with the supporting seat through a front end plate and a rear end plate, a base is fixed to the bottom of the supporting seat, and integrated end plate cylinders are welded to the opposite faces of the front end plate and the rear end plate correspondingly. A shaft holding device is arranged on the barrel in a penetrating mode and connected with the two end plate barrels, a rotating shaft is fixed in the shaft holding device in a penetrating mode, a plurality of rotor discs are arranged on the outer surface, located in the barrel, of the shaft holding device in a layered mode, the rotor discs are located in cavities of the stator units, and a winding coil is arranged on the periphery of the bottom wall of the stator buckling cover. And a permanent magnet is mounted on the rotor disc. The device is wide in mounting environment adaptability range, can be flexibly mounted and dismounted in a limited space, and is simple in overall structure, convenient to use, high in power generation efficiency and high in energy conversion rate.

The utility model provides an apparatus for assisting wafer ring to take off wafer, including stage, wafer ring and material taking device, the stage is cylindrical, and the top surface of stage is provided with a through groove in the radial direction, and the through groove penetrates through the lateral surface of stage, the inner side wall of wafer ring is radially protruded to form a step surface, and the wafer is placed on the step surface, and the diameter of wafer ring is larger than the diameter of stage, when wafer ring is placed on the bottom of stage from top to bottom along with wafer, the wafer on wafer ring leaves the step surface and is left on the top surface of stage, and material taking device takes off wafer from the top surface of stage or from the through groove of stage. The utility model has simple structure, and the wafer is supported on the top surface of stage and then taken off, so the operation is convenient, the taking-off efficiency and stability can be improved, the wafer edge is prevented from contacting and rubbing with the inner side wall of wafer ring caused by dumping, and the wafer quality is improved.

The utility model relates to the field of display splicing equipment, in particular to a display splicing structure which comprises an L-shaped connecting frame, a vertical pushing frame is slidably connected to the end of the right side of the L-shaped connecting frame, and a transverse pushing frame is slidably connected to the top end of the L-shaped connecting frame; one ends of the cross arms are fixedly connected to the side wall of the L-shaped connecting frame in a linear array mode, and the other ends of the cross arms are connected to the side wall of the vertical pushing frame in a sliding mode; according to the utility model, through the arrangement of the frame, the cross arm and the sliding guide rail, the displays are mounted firstly, and then gaps between the displays are closed, so that the friction between the displays is reduced in the process of splicing the displays, and when the displays need to be dismounted, the display dismounting efficiency is improved. The frame at the corresponding position drives the sliding guide rail to transversely move along the transverse arm, it is guaranteed that enough gaps are reserved between the displayers, the displayers needing to be maintained can be taken out conveniently, and contact friction between the adjacent displayers is avoided when the displayers are disassembled.

The utility model relates to the technical field of chemical packing, in particular to a chemical packing mixing device which comprises a rack, a V-shaped barrel is rotatably mounted at the top of the rack, a box is fixedly mounted on the right side of the rack, lining barrels are arranged on the left side and the right side of the interior of the V-shaped barrel, a fixing mechanism is arranged on the V-shaped barrel, and the V-shaped barrel is fixedly connected with the box. And cylinder covers are fixedly mounted at the left end and the right end of the top of the V-shaped cylinder. According to the chemical filler mixing device, the filler can be separated from the V-shaped cylinder through the arranged lining cylinder, when the V-shaped cylinder needs to be cleaned, a threaded rod is screwed to remove the fixed state of the lining cylinder, and a user only needs to detach the lining cylinder for cleaning, so that the cleaning of the mixing device is facilitated, and the problem that some filler with relatively strong adhesion is easily attached to the inner wall of the mixing cylinder, so that the mixing device is difficult to clean is solved. And the internal space of the mixing drum is limited, so that the cleaning is time-consuming and labor-consuming.

The invention discloses an optical fiber interference remote calibration method based on a giant magnetostrictive material and a current transformer. The current transformer comprises a laboratory end, a field end, a photoelectric detector and a terminal processor. The laboratory end is connected with the field end through an optical fiber and is used for generating a standard optical path difference delta standard and providing an optical signal for the field end; the field end is connected with the photoelectric detector through an optical fiber, the field end comprises a giant magnetostrictive material rod, a sensing optical fiber and a reference optical fiber, and the sensing optical fiber is connected with the sensing optical fiber; under the excitation of a measured current, the giant magnetostrictive material deforms, and after an optical signal passes through the sensing optical fiber, a to-be-measured optical path difference delta to be measured is generated between the optical signal and an optical signal of the reference optical fiber; the photoelectric detector detects the light intensity output by the field end; the photoelectric detector is connected with the terminal processor, when the standard optical path difference delta standard and the optical path difference delta to be measured, the photoelectric detector detects the maximum light intensity, and at the moment, the measured current value is calculated for remote calibration.

A yarn guide mechanism on a textile machine comprises a mounting base, a supporting plate, a left supporting plate and a right supporting plate are arranged on the mounting base, a yarn guide ring is arranged on the supporting plate, an auxiliary yarn guide wheel is arranged on one side of the supporting plate, and a tensioning structure and an inlet auxiliary wheel are arranged on one side of the left supporting plate. The tensioning structure comprises a short rod, a shaft, a shaft sleeve, a long rod, a yarn guide shaft, a yarn guide wheel, a reset spring and a supporting block, an outlet auxiliary wheel is arranged on one side of the right supporting plate, a supporting table is arranged on the left supporting plate and the right supporting plate, a clamping groove, a yarn guide groove and a magnet are arranged in the supporting table, the magnet adsorbs an upper cover, and a limiting strip and a clamping strip are arranged at the bottom of the upper cover. A tensioning structure is arranged on the outer side of the left supporting plate, the tensioning degree of yarn can be adjusted, meanwhile, an auxiliary yarn guide wheel, an inlet auxiliary wheel and an outlet auxiliary wheel are arranged, contact friction between the yarn and the supporting table, the upper cover and the yarn guide ring can be avoided, and yarn deviation can be avoided when the yarn is guided through a limiting strip and a yarn guide groove.

The utility model discloses a bearing structure with high sealing performance, which comprises a bearing piece and a sealing ring, the bearing piece comprises an outer ring, a ball and an inner ring, the sealing ring comprises a lapping ring, a hollow section and a semicircular ring which are fixedly connected, and the lapping ring is detachably connected with the outer surface wall of the inner ring. According to the sealing ring, the hollowed-out section and the semi-circular ring are arranged in the ladder groove and the circular ring groove correspondingly, the hollowed-out section and the ladder groove are arranged at intervals, and the semi-circular ring and the circular ring groove are arranged at intervals, so that contact friction between the subsequent sealing ring and the outer ring is avoided; the zigzag channel can effectively prevent external impurities with larger meshes from directly invading between the outer ring and the inner ring, the sealing performance of the bearing structure is improved, meanwhile, the mode that the lapping ring and the inner ring are fixed is achieved through the locking rod, on one hand, the convenience of overall assembly of the bearing structure is guaranteed, on the other hand, the sealing ring can be conveniently separated subsequently, and the service life of the bearing structure is prolonged. Therefore, the interior of the bearing structure or a zigzag channel is cleaned and maintained.

The invention provides a wire twister for heat tracing band production, and belongs to the technical field of heat tracing band production equipment. The wire twisting machine comprises a wire separating guide mechanism and a wire collecting and gathering mechanism which are sequentially arranged in the conveying direction of a heat tracing band, the wire separating guide mechanism is used for guiding a plurality of single wires to the wire collecting and gathering mechanism, and the wire collecting and gathering mechanism is used for gathering and twisting the plurality of single wires; the branching guide mechanism comprises a branching disc, a plurality of groups of threading holes are formed in the circumferential direction of the branching disc, a wire guide assembly is arranged in the branching disc, the wire guide assembly comprises two groups of limiting wire guide rollers, and the distance between the two groups of limiting wire guide rollers is adjustable so as to adapt to single wires with different diameters; the wire collecting and gathering mechanism comprises a gathering horn, wire anti-abrasion rollers and an oil storage pipe, a plurality of sets of wire anti-abrasion rollers are arranged in the circumferential direction of the gathering horn, and single wires are guided into the gathering horn through the wire anti-abrasion rollers. The invention particularly provides a wire twisting machine for heat tracing band production, which can ensure the wire twisting path of a single wire and avoid deviation and abrasion of the single wire.

The invention discloses brominated epoxy resin preparation equipment and a brominated epoxy resin preparation process, relates to the technical field of epoxy resin production, and solves the problems that impurities pushed to the two sides of a filter bag quickly return to the bottom of the filter bag along with liquid flow, so that the dredging effect on the bottom of the filter bag is poor, and in the up-and-down moving process of the bottom of the filter bag, the dredging effect is poor. The device comprises a filtering tank, a top cover is rotatably mounted at the upper end of the filtering tank, a discharging pipe communicated with the filtering tank is fixedly mounted at the lower end of the filtering tank, and an annular pipe is fixedly mounted at the center of the upper end of the top cover; by installing the supporting assembly and the driving mechanism, in the process that brominated epoxy resin is filtered by the filter cloth, the filter cloth can swing circumferentially and incline in different directions, impurities on the filter cloth can roll and gather into clusters, and the situation that the filtering speed of the filter cloth is affected due to the fact that the impurities are dispersed on the filter cloth is prevented.

The utility model discloses a soaking device for carpet production, which comprises a soaking box, a fixing frame fixedly connected to the outer wall of the soaking box, a positioning frame fixedly connected to the upper end face of the fixing frame, a positive and negative motor fixedly connected to the lower end face of the positioning frame, a rotating shaft connected to the output end of the positive and negative motor, and a first gear fixedly connected to the outer wall of the rotating shaft. The outer edge of the first gear is meshed with a second gear, the center position of the second gear is in threaded connection with a screw rod, the bottom end of the screw rod is rotationally connected with a connecting frame, and the connecting frame is rotationally connected with an extrusion roller. The height of the extrusion rollers is adjusted, the conveying rollers are matched for use, carpets with different thicknesses are subjected to moisture removal, and the speed reduction motor can drive the conveying rollers to rotate slowly, so that the staying time of the carpets in the soaking box is prolonged, and the carpets are fully soaked.

The utility model discloses a glue melting box and a continuous glue machine applying the same, the glue melting box comprises a box body with a cavity, and a plurality of heating rods are arranged on the box body in a penetrating manner; the cavity is in a conical shape, and smooth curve transition is adopted at the section changing position. The continuous glue machine comprises a glue storage unit and a conveying unit, the glue storage unit comprises a glue melting box, a glue barrel assembled above the glue melting box and a glue pressing assembly used for pressing hot melt glue in the glue barrel into the glue melting box. The glue melting box adopts the structure; the conveying unit comprises a glue distributing base assembled at the glue outlet of the glue melting box and a glue pump connected with the glue distributing base and used for quantitatively conveying glue. According to the utility model, the shape of the cavity of the glue melting box is designed to be conical, and smooth curve transition is adopted at the change part of the cross section, so that abrupt change edges and corners are eliminated, storage dead angles do not exist in the cavity of the glue melting box, hot melt glue can smoothly flow out from the glue outlet after being heated and melted in the cavity, and cannot remain in the cavity for a long time; and the hot melt adhesive is prevented from going bad due to repeated heating.

The utility model discloses sterile treatment equipment for beauty needles, which relates to the technical field of sterilization equipment and comprises a disinfection box, a box door is movably mounted at the front end of the disinfection box, a display screen is fixedly mounted at the front end of the disinfection box above the box door, and adjusting knobs are movably mounted on the disinfection box on two sides of the display screen. The display screen and the adjusting knob are electrically connected with a main control panel in the disinfection box through connecting wires, an emergency stop button is fixedly mounted on one side of the disinfection box, and two ultraviolet lamps are fixedly mounted at each of the top and the bottom in the disinfection box. The limiting mechanism is arranged on the bearing frame, the limiting mechanism is composed of the bottom frame, the pressure elastic pieces, the fixing frame, the top frame and the like, the bottom frame can be rapidly clamped to the bearing frame through the clamping groove formed in the lower end, and needle assemblies of different sizes can be rapidly limited and fixed through the four pressure elastic pieces; and the needle head assembly is prevented from falling from the bearing frame or the contact friction between the needle head and the bearing frame is prevented.

The present application provides a mud recovery device, which belongs to the field of mud cleaning technology, including a water tank, a rotating impeller, an impeller bucket and a driving member for driving the rotating impeller to rotate; a support frame installed at the bottom of the inner side of the water tank, a second vertical plate is vertically slidably installed on the support frame, a receiving hopper is fixedly installed on the top of the second vertical plate, and a leakage hole is opened on the receiving hopper; a grid plate is slidably installed in the receiving hopper, grid holes are arranged on the grid plate, and a supporting member is installed on the grid plate and the receiving hopper, and the supporting member includes a pressing block arranged on the grid plate; a first transmission member is connected to the output source of the driving member. The present application can directly transport the sand and gravel inside the receiving hopper to the inside of the impeller bucket by moving the receiving hopper up and down and cooperating with the grid plate and the leakage hole, so as to prevent the sand and gravel from accumulating at the bottom of the inner side of the water tank, and at the same time protect the impeller bucket to reduce the damage degree of the impeller bucket and the friction between the sand and gravel.

The cigarette empty cylinder butt joint system comprises a cigarette empty cylinder bearing table, a first linear reciprocating driving mechanism, a cigarette filling guide-in pipe, a cigarette filling module and a second linear reciprocating driving mechanism, the cigarette empty cylinder bearing table is installed on the first linear reciprocating driving mechanism, and the cigarette filling guide-in pipe is installed on the cigarette filling module and located on the side close to the cigarette empty cylinder bearing table; the cigarette filling module is installed on the second linear reciprocating driving mechanism, the moving direction of the second linear reciprocating driving mechanism is perpendicular to the moving direction of the first linear reciprocating driving mechanism, and the end, close to the empty cigarette cylinder bearing table, of the cigarette filling guide-in pipe is an oval end face which is beveled and pointed. The projection of the long axis of the oval end face on the vertical face of the cigarette filling guide-in pipe is parallel to the moving direction of the second linear reciprocating driving mechanism. Contact friction can be avoided when the empty cigarette cylinder is in butt joint with the cigarette filling ingress pipe, the end opening of the empty cigarette cylinder is prevented from being wrinkled and damaged, the butt joint quality of the empty cigarette cylinder is improved, the quality of a formula cigarette finished product is guaranteed, and smoking aroma testing is facilitated.

The utility model belongs to the technical field of gas conveying component, disclose a flow switch and gas conveying system. Flow switch includes switch body, floater and detection piece. The utility model provides flow switch adopts the up and down movement of floater in transmission channel to replace mechanical contact transmission, the movement of floater is directly driven by gas thrust, avoids the contact friction and transmission gap of baffle and lever in prior art, eliminates the precision loss source brought by mechanical contact from structure, makes the position change of floater can more truly reflect gas flow state, improves the basic precision of flow response. In addition, the reset of floater depends on the balance of its own gravity and gas thrust, there is no spring and other components that need long-term deformation, avoids the risk of spring aging in prior art, ensures the position stability of floater under different working conditions, thereby meets the use demand in the field such as medical oxygen conveying, industrial precision pneumatic.

The utility model discloses an anti-deformation supporting device for a stainless steel super-thick-wall seamless tube, and relates to the technical field of stainless steel super-thick-wall seamless tubes. The stainless steel super-thick-wall seamless tube cutting device comprises a mounting frame, a plurality of placing plates arranged in a layered mode are fixedly arranged between the inner walls of the two sides of the mounting frame, a plurality of grooves are formed in the surfaces of the placing plates, a top plate is fixedly arranged at the top end of the mounting frame, and the bottom of the top plate and the bottoms of the placing plates are each provided with two cutting assemblies used for cutting stainless steel super-thick-wall seamless tubes. And the cutting assembly comprises two fixing blocks fixedly arranged at the bottom of the placing plate, a rotating shaft rotationally penetrates through the two fixing blocks, and a plurality of stop levers are fixedly arranged on the outer wall of the rotating shaft. According to the pipe fitting storage device, pipe fittings can be placed in a layered mode, vertical stacking and extrusion are avoided, adjacent pipe fittings can be separated, contact friction is avoided, deformation and abrasion of the pipe fittings are avoided, people can conveniently and rapidly separate the pipe fittings, the stop rods can be folded, the pipe fittings can be conveniently taken out, and operation is easy, convenient and fast.

The invention belongs to the technical field of metal welding, and particularly relates to a metal product welding machine which comprises a rack, a guide part is arranged at the top of the inner wall of the rack, a main welding part is arranged at the axis of the guide part, a limiting part is arranged at the bottom of the rack, and the main welding part comprises a limiting guide plate. And a buffer drum membrane is arranged at the axis of the inner wall of the limiting guide plate. When welding equipment conducts welding machining on a workpiece at the bottom through a welding end, the welding head is lowered firstly, it is guaranteed that welding work is conducted after the welding head makes contact with the workpiece below, at the moment, large pressure can be generated between the welding end and the workpiece, and the service life of the welding end can be affected due to the abrasion problem; and then the deviation rotating rod of the outer ring is in contact with the metal block in advance, and the distance between the welding end and the metal block is dynamically adjusted in the welding process, so that the problem of serious contact friction between the welding end and the metal block is avoided.

The utility model relates to the technical field of bearings, and discloses a sealed tapered roller bearing which is characterized in that one side of an inner ring can be shielded by a baffle plate of an outer ring, an arc-shaped strip is placed through a mounting channel, so that the arc-shaped strip can be conveniently rotated into an arc-shaped groove in a sliding manner, a protective cover is clamped with the outer ring through a limiting assembly, and the protective cover is conveniently and quickly mounted. The stability and firmness of the protective cover can be guaranteed, and the protective cover is not prone to falling off; the protective cover has the advantages that one side of the inner ring can be shielded through the baffles of the outer ring, the arc-shaped strips are placed through the installation channels, the arc-shaped strips can be conveniently rotated into the arc-shaped grooves in a sliding mode, the protective cover and the outer ring are clamped through the limiting assemblies, the protective cover can be conveniently and rapidly installed, the stability and firmness of the protective cover can be guaranteed, and the service life of the protective cover is prolonged. The protective cover is not easy to fall off and can shield the other side of the inner ring, so that the inner ring and the protective cover can be conveniently and quickly mounted.

The invention relates to the technical field of air bearings, and discloses an air bearing device capable of preventing axial movement, the air bearing device comprises an air supply system, a bearing base body and a rotating roller, a permanent magnet pre-tightening structure and an electromagnetic fine tuning structure are embedded on the inner wall of the bearing base body, and the outer surfaces of the permanent magnet pre-tightening structure and the electromagnetic fine tuning structure are coplanar with the inner wall of the bearing base body; the permanent magnet pre-tightening structure at least comprises two sets of permanent magnets arranged at intervals, the electromagnetic fine tuning structure at least comprises two sets of electromagnetic modules, the electromagnetic modules are located on the outer sides of the corresponding permanent magnets and tightly attached to the corresponding permanent magnets, and the magnetic direction of the electromagnetic modules is opposite to that of the permanent magnets. The thrust disc adopts a gas-magnetic division design, prevents axial movement by utilizing magnetic force, adopts a design of taking permanent magnet as a main part and taking electromagnetism as an auxiliary part, is highly integrated, does not need to occupy additional axial space, is more compact in structure, adapts to small and high-speed main shaft scenes, and is controllable in electromagnetic heating defect compared with a traditional thrust disc structure.