396results about How to "Avoid lifting" patented technology

The invention discloses a machine part manufacturing punching machine with a protection mechanism, and relates to the technical field of machine part manufacturing, the machine part manufacturing punching machine comprises a base, a positioning frame is fixedly mounted at the top of the base, and a protection door is rotatably mounted on the surface of the positioning frame; and the stamping assembly is used for forming and stamping the mechanical parts. According to the machine part manufacturing punching machine with the protection mechanism, a worker places a machine part material plate above a stable supporting assembly and adjusts the position between a clamping assembly and the material plate so that the two sides of the material plate can be positioned in a balanced mode, then the worker starts a hydraulic machine, and the hydraulic machine drives a punching assembly to move downwards to punch the material plate; when the stamping assembly stamps the material plate, the stable supporting assembly is extruded to sink downwards so as to buffer pressure generated by the stamping assembly, and a protective door arranged on the outer side of the positioning frame protects chippings generated by stamping, so that the situation that the chippings splash to injure workers is avoided.

The laser cutting machine for the door plate comprises a workbench, a supporting rack is arranged in an inner cavity of the workbench, a sliding groove is formed in the front side of the upper end of the workbench, a driving assembly is arranged in the sliding groove, the outer surface of the driving assembly is in threaded connection with an adjusting frame, a metal plate is placed on the supporting rack, and the adjusting frame is in threaded connection with the supporting rack. A pushing assembly is arranged on the rear side of the upper end of the workbench, a positioning plate is fixedly installed at the front end of the pushing assembly, and a groove is formed in the upper side of the front end of the positioning plate. Compared with the prior art, the leveling device has the advantages that when the leveling pressing plate moves downwards, the left end and the right end of the metal plate are pressed and positioned, and the pressure effect can flatten the tiny fluctuating or twisting part of the metal plate, so that the metal plate is smoother, and the two ends of the metal plate are prevented from tilting up; and leveling of the metal plate is beneficial to subsequent cutting machining operation, and the machining precision and the product quality are improved.

The squeezing flat mop cleaning tool comprises a mop bucket and a flat mop, the flat mop comprises a mop rod and a hard flat mop head movably connected to the mop rod, and a wiping material is arranged on the flat mop head; the mop bucket is provided with a squeezing frame, the squeezing frame is provided with an opening, and a squeezer is arranged on the squeezing frame on one side of the opening, and an squeezing opening is formed between the squeezer and the other side of the opening; the mop bucket comprises a squeezing area and a water holding area located at different positions, the squeezing frame is located above the squeezing area, and the squeezing frame or the squeezer has a water channel for leading out the water squeezed out of the wiping material; the squeezer is movably connected to the squeezing frame, and when the flat mop head is pressed down, the wiping material drives the squeezer to move to a narrow position, thereby making the squeezing opening smaller; when the flat mop head is pulled up, the wiping material drives the squeezer to move in a direction away from the narrow position, thereby making the squeezing opening larger. The present invention provides a mop bucket that is easier to operate and will not be lifted during cleaning and squeezing operations.

The utility model relates to the technical field of plate shearing machines, and discloses a plate adsorption type plate shearing machine which comprises a plate shearing machine body, a positioning assembly is arranged in the plate shearing machine body, a shearing mechanism is arranged at the top of the plate shearing machine body, and a buffer plate is fixedly connected in the plate shearing machine body. The positioning assembly comprises an anti-warping assembly and an adsorption assembly, the anti-warping assembly is arranged in the plate shearing machine body, the adsorption assembly is arranged in the plate shearing machine body, the anti-warping assembly comprises connecting bases, and the connecting bases are fixedly connected to the front face and the back face of the plate shearing machine body. In the using process of the plate adsorption type plate shearing machine, a plate is adsorbed through the arranged suction cups so as to be positioned, then a first bolt is twisted according to the thickness of the plate to drive a pressing rod, the pressing rod is pressed at one end of the plate, the plate can be prevented from tilting during shearing, and the shearing precision is guaranteed.

The utility model relates to a net hanging device for concrete spraying, and relates to the technical field of building construction, the net hanging device for concrete spraying comprises a steel bar net piece and a connecting piece, the connecting piece is used for being fixed to a structure to be subjected to concrete spraying, and the steel bar net piece is hung on the connecting piece; the connecting structure further comprises a pressing piece, and the pressing piece is pressed on the reinforcing mesh and fixedly connected with the connecting piece. Through the design of the connecting pieces and the pressing pieces, the reinforcing mesh is fixed to the structure, the concrete rebound phenomenon can be effectively reduced, and the construction quality and efficiency in the concrete spraying process are ensured; due to the design of the pressing piece, the reinforcing mesh can be evenly and stably pressed on a structure, the reinforcing mesh is prevented from tilting or bending in the spraying process, and therefore the stability and durability of the mesh hanging device are guaranteed; the construction process is simple and clear, operation is convenient and fast, the net hanging device can be rapidly used, the construction period is shortened, the site guidance difficulty is reduced, and economic benefits are improved while the construction quality is guaranteed.

The invention discloses a bidirectional linkage positioning testing mechanism, and aims to provide a bidirectional linkage positioning testing mechanism which is simple in structure, accurate in positioning, compatible with various feeding modes and floating anti-pressing design and capable of meeting synchronous clamping and pin discharging testing of symmetrical products. The device comprises a carrier plate, a clamping air cylinder, positioning modules and a lower pin module, a product profiling groove is formed in the middle of the upper end face of the carrier plate, the product profiling groove is in limiting fit with a main body part of a product, and the two positioning modules are arranged at pressing positions on the two sides of the upper end face of the carrier plate. The movable ends of the two sets of positioning modules are matched with the two sides of the product main body part respectively, the lower pin module is arranged at the lower pin position of the upper end face of the carrier plate, the probe end of the lower pin module is matched with the end of the product main body part, and the clamping air cylinder is arranged at the lower end of the carrier plate. And two groups of movable ends of the clamping cylinder are respectively matched with the driving ends of the two groups of positioning modules. The method is applied to the technical field of product testing.

The invention discloses spring winding equipment for spring processing, and relates to the technical field of spring winding processing, the spring winding equipment comprises a base, a control cabinet arranged on one side of the top of the base, a vertical moving plate slidably arranged between two guide rails, a spline cylinder rotatably mounted on the moving plate, and a winding roller connected to the suspended end of the spline cylinder; a positioning disc is mounted at the outer end of the winding roller; a driving assembly is installed in the control cabinet. A supporting mechanism is installed at the front end of the stand column. A guide mechanism is mounted in the top opening of the protection box; through cooperation of the winding rollers, the supporting mechanism and the guide mechanism, rapid winding operation can be conveniently achieved according to the gap density of different springs, the winding rollers with different diameters can be selected for use, winding operation of the springs with different diameters is achieved, and the winding efficiency is improved. The situation that the winding roller swings and deviates due to the fact that the suspended end is stressed when the winding roller rotates can be avoided, the situation that steel bars deflect when being guided can also be avoided, and the precision of the spring in the winding production process is improved.

The utility model discloses a novel multi-bending structure which comprises a bottom plate, two ends of the top end of the bottom plate are fixedly connected with a machine frame, hydraulic cylinders are fixedly installed in the middles of two sides of the top end of the machine frame, the bottom ends of the two hydraulic cylinders are fixedly connected with an installation plate, and a plurality of inserting grooves are formed in the bottom end of the installation plate. Wherein a bending knife is inserted into the inner wall of one inserting groove, sliding rails are fixedly connected to the two sides of the top end of the bottom plate, sliding strips are slidably connected to the surfaces of the two sliding rails, a placement table is fixedly connected to the surfaces of the two sliding strips, a mounting cavity is formed in the top of the interior of the placement table, and a lead screw is rotationally connected to the inner wall of the mounting cavity through a bearing; according to the novel multi-bending structure, a worker does not need to hold a plate by hand and deliver the plate to a bending area, the bending process is safer, the side edge of the metal plate can be bent into different angles, and the novel multi-bending structure is more convenient to use.

The invention relates to the technical field of auxiliary replacement of double suspension insulator strings, and provides an auxiliary replacement device and method for double suspension insulator strings, which simplify the auxiliary replacement process of the double suspension insulator strings. According to the device, the horizontal state of the two connecting plates can be kept during replacement operation, and stable supporting of the two connecting plates is achieved through the structural design that a bearing plate and a positioning pin are introduced into the device; pulling force is applied through the hoist, and the pulling force borne by the two insulators is transferred to the hoist; and the hoist is positioned on the central line, so that the problem of non-uniform stress caused by a load-carrying phenomenon is avoided, and the situation that a cross arm hanging point bolt with an unfastened end cannot be smoothly disassembled due to the fact that the two connecting plates tilt up, so that an insulator chain with an unfastened end is unbalanced in stress and an insulator chain on the other side inclines downwards due to the influence of gravity is avoided.

The utility model discloses a fire grate segment, a fire grate frame and a small garbage incinerator, and belongs to the technical field of environmental protection. The fire grate segment comprises a fire grate segment cover plate, a fixed shaft position and a plurality of parallel rib plates are arranged at the lower end of the fire grate segment cover plate, and vent holes are formed in the side end of the fire grate segment cover plate. A vent groove is formed in the upper surface of the fire grate segment cover plate; the fire grate segments are fixed through the fixing shaft positions, the heat dissipation performance of the fire grate segments is improved through the rib plates, and the ventilation capacity of the fire grate segments is increased through the ventilation holes and the ventilation grooves. According to the fire grate segment disclosed by the utility model, the plurality of rib plates are longitudinally arranged in the fire grate segment cover plate, so that the strength is ensured, and the heat dissipation performance of the fire grate is improved; by arranging the first axial position and the second axial position, the fire grate segment is prevented from eccentric wear and tilting to a certain extent, the use requirement of the garbage incinerator can be met, the structure is simple, and meanwhile the production and maintenance cost is reduced by adopting an integrated casting.

The utility model discloses a printing machine for printing corrugated boards, which belongs to the field of printing and comprises a workbench and a printing mechanism arranged on the upper side face of the workbench, a fixing frame is arranged on the upper side face of the workbench and located in front of the printing mechanism, and a pair of air cylinders is arranged on the fixing frame. The output end of the air cylinder is fixedly connected with a mounting frame, auxiliary flattening parts are arranged on the front side face and the rear side face of the mounting frame correspondingly, elastic stretching parts are arranged between the mounting frame and the auxiliary flattening parts, and the two ends of the elastic stretching parts are hinged to the mounting frame and the auxiliary flattening parts correspondingly. According to the printing machine for printing the corrugated boards, the main pressing roller and the auxiliary flattening part are arranged in the feeding direction of the printing mechanism, the corrugated boards entering the printing mechanism are flattened, the main pressing roller is responsible for flattening the boards, the auxiliary flattening part avoids the phenomenon that the two sides of the main pressing roller of the boards tilt, and therefore the surfaces of the boards can be smoother, and the quality of the boards is improved. Therefore, the printing effect is improved, and printed matters are clearer and more attractive.

The utility model provides an anti-radiation luggage security check instrument, which comprises a shell, a conveyor belt is arranged at the bottom of the shell, the shell comprises an object inlet end and an object outlet end, an X-ray searchlight is arranged between the object inlet end and the object outlet end, the object inlet end and the object outlet end are respectively provided with at least more than two anti-radiation curtain cloths which are arranged at intervals, and the X-ray searchlight is provided with an X-ray detector. A transition space is formed between every two adjacent anti-radiation curtain cloths located at the object inlet end or the object outlet end, when luggage passes through the object inlet end and the object outlet end and pushes away one of the anti-radiation curtain cloths, the other anti-radiation curtain cloths are closed and play an anti-radiation role, and therefore the situation that the anti-radiation curtain cloths tilt up when the luggage passes through the security check instrument, and the luggage is prevented from being damaged due to the fact that the anti-radiation curtain cloths tilt up when the luggage passes through the security check instrument is avoided. Therefore, a certain gap is formed, and certain radiation to a human body when a person stretches into the radiation-proof curtain close to the outer side to take luggage is avoided.

The utility model discloses a thinned high-performance hot stamping film which comprises a release layer and an adhesive layer, a positioning net layer is fixedly arranged on the upper surface of the adhesive layer, and a metal layer is fixedly arranged on the upper surface of the positioning net layer; a plurality of storage grooves, a first anti-counterfeiting groove and a second anti-counterfeiting groove are formed in the upper surface of the metal layer, an imaging layer is arranged in each storage groove in an embedded mode, and a shimmering powder layer is fixedly arranged on the upper surface of each imaging layer; a photosensitive color-changing anti-counterfeiting layer is arranged in the first anti-counterfeiting groove in an embedded mode, and a temperature-sensing color-changing anti-counterfeiting layer is arranged in the second anti-counterfeiting groove in an embedded mode. The upper surfaces of the shimmering powder layer, the photosensitive color-changing anti-counterfeiting layer and the thermochromic anti-counterfeiting layer are flush with the upper surface of the metal layer or are lower than the upper surface of the metal layer; a plurality of positioning protruding blocks are integrally arranged on the edge of the upper surface of the positioning net layer. According to the technical scheme, the structural design is reasonable, the number of layers is small, the thickness is small, manufacturing cost is low, and practicability is good.

The application discloses an icon assembly of a vehicle and the vehicle. The icon assembly comprises a lamp body and a shell, the lamp body is located in the interior of the shell, the shell is a light-transmitting shell, and the icon assembly is fixedly attached to a mounting surface of the vehicle. According to the icon assembly of the vehicle, the icon assembly is fixedly attached to the mounting surface of the vehicle, so that an icon hole with the same size as the icon assembly can be avoided on the mounting surface of the vehicle, when the mounting surface of the vehicle is the surface of a sheet metal part, the problem that the sheet metal part is buckled due to stamping of the icon hole can be avoided, and the vehicle does not need to additionally increase an intermediate part to install the icon assembly, so that the cost of the vehicle is saved.

The utility model discloses an adult paper diaper of replaceable core body belongs to paper diaper technical field, including the trousers body, the waist of trousers body is provided with the fixed part of fixed effect, the inside of trousers body is provided with the core body, the lateral surface of trousers body is evenly provided with a plurality of positioning strips, and the adjacent two positioning strips are parallel to each other, and a plurality of positioning strips are arranged in a straight line, and the both ends of positioning strip are fixedly connected with the lateral surface of trousers body, and the positioning groove is formed between positioning strip and trousers body, and the positioning piece is arranged in a plurality of positioning grooves, and the width of positioning piece is same with positioning groove, and one end of positioning piece is fixedly connected with one end of core body side surface, and the other end of positioning piece is detachably cooperated with the other end of core body side surface, and the first adhesive part is arranged on the side surface of core body, and the first adhesive part is bonded with trousers body, can realize the accuracy of core body and trousers body installation position.

The utility model relates to the technical field of forming devices, and discloses an aluminum square universal forming device which comprises a supporting frame, a cutting mechanism arranged on the top of the supporting frame, an extruding mechanism arranged on the top of the supporting frame, an unwinding device arranged on the top of the supporting frame, an electric edge folding device arranged on the top of the supporting frame, and a motor arranged on the top of the supporting frame. And the cutting mechanism comprises a cutting assembly and a positioning assembly, the cutting assembly is arranged at the top of the supporting frame, the positioning assembly is arranged in the supporting frame, the cutting assembly comprises a first mounting frame, and the first mounting frame is fixedly connected to the top of the supporting frame. According to the universal forming device for the aluminum square tubes, in the using process, a second electric telescopic rod is arranged to drive a pressing plate to descend, the pressing plate is guided through a guide groove of a guide cylinder, and then the pressing plate can be pressed at one end of each aluminum square tube through a rubber pad, so that the aluminum square tubes are prevented from tilting during cutting, the cutting size of the aluminum square tubes is guaranteed, and the cutting quality is guaranteed.

The utility model discloses a swing check valve mechanism, which belongs to the technical field of check valves and comprises a valve body, a valve plate and a side supporting mechanism, the two ends of the valve body are connected with a water inlet pipe and a water outlet pipe, the valve plate is rotatably connected with the inner wall of the valve body through a reset hinge shaft seat, and the side supporting mechanism is used for supporting the two sides of the valve plate. The side supporting mechanism comprises a guide rail and rolling supporting pieces, the guide rail is fixedly arranged on the inner wall of the valve body, and the rolling supporting pieces are installed on the two sides of the valve plate and roll in the guide rail. According to the technical scheme, when the valve plate rotates, the rolling supporting piece synchronously rolls in the guide rail, on the basis of the structural form, sufficient and symmetrical supporting can be provided for the two sides of the valve plate, the abrasion speed of the hinged position of the valve plate is greatly reduced, the situation that the valve plate swings and deviates in the rotating process can be effectively avoided, and the service life of the valve plate is prolonged. And meanwhile, the supporting mode does not influence normal rotation of the valve plate.

The utility model provides a kind of width self-adapting foam tape cutting guide mechanism, including roof frame, still include: baffle wheel, the top end in the roof frame inside is installed by bolt, the both sides of roof frame are fixed with mounting seat, connecting frame, rotatingly connected in the side of roof frame, the bottom end of connecting frame away from the side of roof frame is rotatingly connected with front end plate, positioning structure, it is set in the inside of connecting frame.The utility model, by rotating crank handle to drive two-way screw rod rotation, make two groups of moving block to drive corresponding locating plate movement, adjust the spacing between two groups of locating plate, thus realized the width adjustment function of this device, can flexible adaptation different width specifications foam tape, without complex disassembly can be quickly completed adjustment, can automatically guide tape to keep central posture to convey simultaneously, effectively avoid material deviation, ensure that tape stress is even, position accurate when cutting.

This utility model discloses a disc-lock type scaffolding, relating to the field of scaffolding. The utility model includes four bases and multiple crossbars. Each of the four bases has a stud welded to its top, and the outer wall of the stud is threaded with an adjusting nut. A vertical pole is fitted onto the top of the stud. This utility model incorporates a pin, anti-slip plate, slot, locking plate, slide block, spring, and push block. After the hook is hung on the corresponding crossbar, the worker first pushes the push block, which moves the slide block. The slide block then compresses the spring and moves the locking plate. Next, the anti-slip plate is rotated, causing its inner wall to fit against the outer wall of the crossbar, and the locking plate rotates into the slot. Then, the push block is pushed in the opposite direction, and the spring stretches, causing the slide block to return to its original position. When the locking plate is fully engaged in the slot, the anti-slip plate is locked in place. The anti-slip plate and hook form a ring-shaped engagement on the crossbar, increasing friction and improving the stability of the hook and footboard.

The invention belongs to the technical field of bending machines, and particularly discloses a bending machine for ship manufacturing, which comprises a base, a support is fixedly connected to the upper end of the base, a heating assisting mechanism is arranged on the inner side, close to the support, of the upper end of the base, and an auxiliary mechanism is arranged at the upper end of the support. A supporting column is fixedly connected to the side, close to the support, of the upper end of the base, a transverse rod is fixedly connected to the upper end of the supporting column, a hydraulic cylinder is fixedly connected to the side, close to the supporting column, of the lower end of the transverse rod, and a pressing plate is installed at the lower end of the hydraulic cylinder. Through cooperation of the heating assisting mechanism and the auxiliary mechanism, a steel plate can be efficiently heated, the steel plate is automatically pressed, workers are prevented from making contact with the high-temperature steel plate, and the whole device is easy to operate.

The utility model relates to the technical field of solution split charging, in particular to double-solution split charging equipment. Comprising a base, a storage barrel, a mounting support and a moving assembly, the moving assembly comprises a guide column, a spring, a limiting disc, a moving plate, a subpackaging head, an adding component and a conveying component, a solution can be guided into the storage barrel to be stored through the adding component, further, containers with different heights are placed on the base, then the moving plate is pulled downwards, the spring is compressed, and the solution can be stored in the storage barrel. The split charging heads can be moved to be in better liquid guide spacing fit with containers with different heights, an operator can be prevented from lifting the containers, the risk that the operator makes contact with a solution is reduced, the split charging heads are arranged in two sets, the two operators can operate at the same time, the split charging efficiency is improved, and the split charging efficiency is improved. And therefore, during solution split charging treatment, the device can be matched with containers with different heights for quick split charging, and the safety of split charging operation is improved.

This invention discloses an oil-water-gas well reservoir expansion and sealing jet fluid production and sand removal device, relating to the field of oil production technology. The device includes a central tube and further comprises: an expansion assembly located around the central tube, with its lower end positioned on the central tube and its upper end capable of sliding on the central tube, used for radial expansion under the drive of a hydrodynamic fluid; and a jet nozzle located below the central tube and below the expansion assembly, used to spray hydrodynamic fluid, creating a negative pressure zone in the spray area to absorb formation fluid. This integrated design combines the expansion assembly and the jet nozzle, allowing for the completion of both annular sealing and jet fluid production and sand removal functions in a single well run, avoiding the cumbersome process of two well runs required by traditional technologies and shortening the operation time.

The utility model discloses a cutting device capable of preventing noodles from tilting, and relates to the technical field of noodle processing. The device comprises a base, the rear side of the base is connected with a fixing plate, and extending plates are fixedly arranged at the positions, close to the fixing plate, of the two sides of the base; the cutting mechanism is used for cutting noodles, the cutting mechanism comprises limiting plates fixedly arranged on the two sides of the top of the fixing plate, guide rods are connected between the limiting plates and the base, the surfaces of the guide rods are slidably sleeved with a mounting plate, and first strip-shaped notches are formed in the edge side of the surface of the mounting plate at equal intervals. Through the combined design of the base, the fixing plate, the cutting mechanism, the placing groove, the locking piece and the binding piece, the binding belt of the binding piece is tightly attached to noodles in the cutting process, so that the noodles are prevented from tilting or scattering in the cutting process, the noodles are effectively prevented from tilting or scattering in the cutting process, the length uniformity of the noodles is guaranteed, and the cutting efficiency is improved. The appearance quality of the product is improved.

The utility model discloses a bending machining device for magnesium alloy machining, and particularly relates to the field of magnesium alloy machining, which comprises a workbench, a support is welded on one side of the top end of the workbench, a hydraulic pump is mounted at the top end of the support, a hydraulic rod is connected to the bottom end of the hydraulic pump, and a fixing plate is mounted at the bottom end of the hydraulic rod. A bending head is installed in the middle of the bottom end of the fixing plate, pressing and fixing mechanisms are symmetrically arranged on the two sides of the bending head, a bending groove is formed in the middle of the top end of the workbench, supporting mechanisms are connected to the two sides of the bending groove in a bolted mode, sliding assemblies are installed in the pressing and fixing mechanisms and the supporting mechanisms correspondingly, and the bending head and the bending groove are perpendicularly arranged. The bottom of the bending head is matched with the inner wall of the bending groove. According to the magnesium alloy bending device, the two ends of magnesium alloy are pressed and fixed when the magnesium alloy is bent, the magnesium alloy can move along with the magnesium alloy in the bending process, the ends of the magnesium alloy are pressed and fixed, and therefore tilting during bending is avoided, a bending point is prevented from sliding, and the accuracy of the bending point can be improved.

This invention relates to a vacuum extractor that improves extraction performance through a vacuum treatment unit, which improves extraction performance by recovering extracts contained in the air drawn in when a vacuum is generated. The vacuum extractor includes: an extraction chamber for extracting extracts from a raw material using a solvent; a chamber heating unit for heating the extraction chamber with a heat medium to improve extraction performance by heating the raw material; and a vacuum treatment unit for generating a vacuum in the extraction chamber to facilitate extraction of the extract from the raw material, while simultaneously recovering the extracts contained in the drawn-in air using a vacuum pump. The vacuum treatment unit includes: a first cooler for cooling the air and recovering the extracts when a vacuum is generated in the extraction chamber using a vacuum pump; a cyclone tank for generating a cyclone and recovering the extracts contained in the air passing through the first cooler; a second cooler for further cooling the extracts contained in the air passing through the cyclone tank and recovering the extracts; and a recovery tank for storing the extracts recovered from the second cooler.

This utility model discloses a metal processing cutting device with a limiting structure, belonging to the technical field of ceramic material heat treatment devices. It includes a base, with an arm rotatably connected to the top of the base via a rotating shaft. A servo motor is mounted on one side of the arm, and a cutting blade is rotatably mounted on the other side. A cutting groove is formed on the outer surface of the base, and a positioning device is also provided on the outer surface. The positioning device includes two rectangular blocks, with one end of a round rod fixedly connected to a positioning block. This cutting device, by setting up the positioning device and by placing a spring on one side of the positioning block, allows the workpiece to be placed between a rectangular block and the positioning block. The spring pushes the positioning block to quickly adapt to the size and position of the workpiece, and the position of the positioning block is fixed by rotating a threaded ring against the surface of an L-shaped block. This achieves rapid clamping and positioning of the workpiece, improving the efficiency and convenience of using the cutting device.

The utility model discloses a numerical control four-plus-one cutting machine which comprises a lathe bed, the lathe bed is connected with a machining frame in a sliding mode, a machining table is installed on the lathe bed, an air suction cover is installed below the machining table, a groove is formed in the surface of the machining table, the surface of the machining table is connected with a scraping frame in a sliding mode, and the scraping frame is connected with a rotating plate in a rotating mode through a rotating rod. The top end of the rotating rod penetrates through the scraping frame, an electric push rod b is installed at the bottom end of the machining frame, a support a is installed on the electric push rod b, the support a is rotationally connected with rolling wheels, a connecting frame is installed on the machining frame, a hydraulic cylinder is installed on the connecting frame, a support b is installed on the hydraulic cylinder, and the support b is rotationally connected with a rubber roller. The air suction cover inner assembly and the movable scraping frame are matched to clean the surface of the machined machining table, and the situation that subsequent machining is affected by sweeps is avoided; the rubber rollers and the rolling wheels fix the workpiece on the machining table, and the workpiece is prevented from tilting during machining.

The invention discloses a surface polishing device for luggage leather, and relates to the technical field of dental comprehensive treatment machine; in order to solve the problem of low polishing efficiency and poor polishing quality of luggage leather; specifically comprising a mounting seat, a third mounting frame is mounted on the mounting seat, a polishing box is mounted on the third mounting frame, a first motor is also mounted on the third mounting frame, a conveyor belt is mounted on the first motor, the conveyor belt runs through the polishing box, a pair of second motors are mounted in the processing box, a first rotating shaft is mounted on one side of the second motor, a turntable is mounted on the first rotating shaft, a transmission belt is mounted on the turntable, a second rotating shaft is mounted on the transmission belt, a first grinding roller is mounted on the periphery of the second rotating shaft, a second mounting frame is mounted between the second motors and in the polishing box, a third motor is mounted on the second mounting frame, a third motor is mounted on the third rotating shaft, and a second grinding roller is mounted on the periphery of the third rotating shaft. The invention can effectively improve the efficiency and quality of luggage leather polishing.

The utility model discloses a kind of lead frame structures, lead frame unit is arranged to form the lead frame structure in six rows, left and right two columns, the lead frame unit includes: base island, including base island body and protruding setting in the front of base island body chip bearing area;Locking groove, be opened in the chip bearing area, and the locking groove is located at the edge position of the chip bearing area;Pin, bending connection in the side of the base island;Base island connecting rib, connect between two the base island of adjacent upper and lower;Wherein, the chip bearing area is rough surface. Solve the problem that the base island and chip of existing TO-252 lead frame are easy to delaminate.

The utility model discloses an opening and closing mechanism of a paperboard slitting creasing machine, and relates to the technical field of paperboard processing equipment. The indentation device comprises a portal frame, a reciprocating opening and closing mechanism is arranged on the top face of the portal frame, an installation frame assembly is fixed to the bottom end of the reciprocating opening and closing mechanism, an indentation cutter is arranged at the bottom end of the installation frame assembly, and guide assemblies are arranged on the top of the portal frame and the top face of the installation frame assembly. And pressing mechanisms are arranged on the front side wall and the rear side wall of the indentation cutter. By means of the guide assembly, the installation frame assembly and the creasing cutter are guided and limited when vertically moving, and before the creasing cutter vertically moves downwards and makes contact with the surface of a paperboard, the bottom face of the pressing mechanism of the creasing cutter is attached to the surface of the paperboard; the two sides, subjected to creasing, of the paperboard are pressed through the pressing mechanisms located on the front side and the rear side of the mounting frame assembly, and then the paperboard is prevented from moving or tilting when the paperboard is creased by the creasing tool.