33results about How to "Avoid height difference" patented technology

The invention relates to the technical field of screen printing, in particular to circuit board screen printing equipment and a screen printing process. The invention discloses circuit board screen printing equipment and a screen printing process. The equipment comprises a screen printing machine body, a mounting plate, a clamp, a silk screen, an ink scraping assembly and the like, a mounting plate is mounted at the rear part of the screen printer body through an electric guide rail; a plurality of clamps are connected to the mounting plate; the plurality of clamps are jointly provided with a silk screen; an ink scraping assembly used for scraping ink is arranged on the mounting plate; the electric drive guide rail drives the mounting plate, the clamp, the silk screen and the ink scraping assembly to ascend and descend. The maximum stroke positions of movement of the scraper and the ink returning blade are set to be located above the intercepting faces on the left side and the right side respectively, movement of the ink is intercepted, limited and guided through the intercepting faces, and in the subsequent process that the scraper and the ink returning blade scrape the ink along the intercepting faces, in the coining process and the ink returning process, it is guaranteed that the ink is located on a working area all the time; and the problem of waste caused by ink moving out of a working area due to pushing of the scraper and the ink return blade is avoided.

The utility model relates to the technical field of integral crossing plates, and discloses an integral crossing plate for large-height-difference connection of a railway road at a railway level crossing, a first track groove and a second track groove are sequentially arranged on a crossing plate body from the inner side to the outer side of a turning radius, and the top surface of the crossing plate body is provided with a first track groove and a second track groove. A downward slope surface is arranged on the outer side face of the turning radius of the second track groove in the road connection direction, and / or an upward slope surface is arranged on the inner side face of the turning radius of the first track groove in the road connection direction, so that the height difference between the railways and the roads and the height difference between the two railway lines are reduced and avoided, the length of the connection slope is shortened, and slope making is avoided; therefore, construction difficulty and cost are reduced, the implementation period is shortened, and the device has the advantages of being simple in structure, high in practicability and good in using effect.

The invention relates to a semiconductor structure and a manufacturing method thereof, and the method comprises the steps: forming a recessed region in the top surface of an isolation structure through employing the grinding process of forming the isolation structure, forming a protection layer in the recessed region for protecting the isolation structure, and employing the protection layer for protecting the isolation structure to remove a hard mask layer through etching. The height difference of the isolation structures in different areas caused by etching the isolation structures in the process of removing the hard mask layer is avoided; the epitaxial layer is formed on the top surface of the substrate in an epitaxial manner after the hard mask layer is removed, and the substrate between the epitaxial layer and the isolation structure is jointly used as the active region, so that the top surface of the active region is flush with the top surface of the isolation structure, the height of the active region is adjusted, and the step height of the isolation structure and the active region is eliminated; and the performance of the semiconductor structure is improved.

The utility model provides a watchband contact finger connector based on a plane base band, and aims to solve the problem that the heights of riveted copper contact sheets are inconsistent due to the fact that the hardness of each part of a steel band base material of a traditional watchband contact finger connector is different and the bending angles are different during bending. The utility model mainly comprises a steel strip base material main body and a plurality of copper contact sheet assemblies which are connected in series, wherein the steel strip base material main body comprises a connecting steel strip and a plurality of connecting steel sheets which are arranged at intervals. According to the utility model, the steel base band is changed into a plane structure, the angle of the watchband is changed into a novel three-dimensional contact piece, the height difference caused by bending of the steel band is avoided, meanwhile, the stress of the stamped steel band is very small, and the steel band is not deformed after being subjected to heat treatment after being stamped and formed; and the heights of all the contact pieces are consistent, the anti-fatigue life is greatly prolonged, the stability and the reliability of the product are greatly improved, and the connector can be used for connecting linear or annular conductors.

The utility model discloses a movable steel box girder panel correcting device which comprises a correcting device, a cross beam device, a universal wheel device and a jack, a connecting hole is formed in the middle of the correcting device, the correcting device is connected with the cross beam device, and a steel plate is welded to the bottom of the correcting device; the jack is installed on the side face of the beam device, and the universal wheel device is arranged at the bottom of the beam device. The steel box girder panel correction device improves working efficiency and quality, meets the requirement for panel correction in the steel box girder manufacturing process, is easy to manufacture, convenient to operate and low in cost, and can quickly solve the problem of deformation of a steel box girder panel in construction.

The utility model discloses a glue spreading structure for AB glue in a curved-surface tempered film, which relates to the technical field of curved-surface tempered films and comprises a curved-surface tempered film, an AB glue layer and a PC (polycarbonate) back plate, the four edges of the curved surface tempered film are bent towards the release surface of the curved surface tempered film to form a curved surface, the curved surface tempered film covers and presses the PC back plate, the PC back plate is convexly provided with a convex step towards the direction of the curved surface tempered film, the convex surface of the convex step is attached to the release surface of the curved surface tempered film, and the convex surface of the convex step is attached to the release surface of the curved surface tempered film. The side faces of the periphery of the convex step are all attached to the curved surface of the periphery of the curved surface tempered film. The AB adhesive layer comprises a silica gel film, a base material, an OCA optical adhesive and a release film which are laminated, the silica gel film is attached to the release surface of the curved-surface tempered glass film, AB adhesive can be uniformly distributed on the curved-surface tempered glass film, and the formation of height difference and generation of gaps are avoided, so that the curved-surface tempered glass film can be completely attached to a mobile phone screen, and the service life of the mobile phone screen is prolonged. The problem of unbalanced glue spreading of the AB glue layer on the release surface of the curved-surface tempered film is solved, and the curved-surface tempered film is convenient to use.

The display cover plate comprises a glass substrate and a film Sensor, shading printing ink is arranged on the lower surface of the glass substrate, the shading printing ink is located in a non-display area, transparent OCA is coated on the lower surface of the glass substrate, the transparent OCA covers the shading printing ink, and the film Sensor is arranged on the lower surface of the glass substrate. The lower surface of the transparent OCA forms a smooth plane, the film Sensor is fully attached to the glass substrate through the transparent OCA, the glass substrate is provided with at least one semi-transparent area, the transparent OCA is provided with avoiding parts, the positions, the shapes and the number of the avoiding parts correspond to the positions, the shapes and the number of the semi-transparent areas, and the positions, the shapes and the number of the avoiding parts correspond to the positions, the shapes and the number of the semi-transparent areas. And each avoiding part is provided with a pigment OCA (Optical Clear Adhesive). The pigment OCA is arranged at the avoiding part of the transparent OCA, the integrated black effect can be achieved in the non-lighting state, meanwhile, the different color effects can be achieved in the lighting state, the pigment OCA with different transmittance can be modulated by adjusting the adding amount of the pigment, and therefore the silk-screen procedure is reduced.

The utility model provides an opposite-row double-end bridge type gantry milling machine which comprises a milling machine 1, the milling machine 1 is composed of machine bodies 11 and a workbench 13, the machine bodies 11 are provided with machine heads 12 used for machining, the number of the machine bodies 11 is two, the machine bodies 11 are fixedly arranged on the two sides of the workbench 13, the machine heads 12 are provided with proximity sensors, and the proximity sensors are electrically connected with an alarm assembly, so that when the two machine heads 12 machine, the alarm assembly is electrically connected with the machine heads 12. And a tool setting mechanism 2 is arranged on one side of the workbench 13, and the tool setting mechanism 2 is arranged between the two machine heads 12, so that when the two machine heads 12 are used for machining, the two machine heads 12 are arranged at the same tool setting reference zero point and are kept flush with each other. According to the opposite-row double-head bridge type gantry milling machine, parts are machined at the same time through the opposite-row double machine heads, double-head machining of large metal parts of molds is achieved, the machining efficiency of complex molded surfaces of workpieces is greatly improved, and the project development cycle of large automobile molds is shortened.

The utility model discloses a beam pipe welding tool. The beam pipe welding tool comprises a workbench; the plurality of positioning blocks are arranged on the workbench and are used for placing the cross beam pipe and limiting the cross beam pipe; the first positioning device is arranged on the workbench and is used for positioning the cross beam pipe; the second positioning device is arranged on the workbench and is used for positioning the cross beam pipe; the third positioning device is arranged on the workbench in a sliding manner and is used for placing a cross beam welding piece and pushing the cross beam welding piece into the cross beam pipe; the fourth positioning device is arranged on the workbench and used for driving the third positioning device to stretch out and draw back, and the control switch is used for controlling the first positioning device, the second positioning device, the third positioning device and the fourth positioning device to work.

The invention discloses an auxiliary pollination method for male parents and female parents with large height difference, which is used for pollination for hybridization when the height difference between the male parents and the female parents is large, and comprises the following steps: planting male parent rows and female parent rows in parallel at intervals according to a ratio of 1: 3, the row width is 1.2-1.3 m, a walking channel is arranged between the male parent rows and the female parent rows, and the walking channel is communicated with the male parent rows and the female parent rows; an auxiliary pollination tool is used in the walking channel and comprises a pollination channel, an inlet of the pollination channel corresponds to a male parent row, an outlet of the pollination channel corresponds to a female parent row, and an instrument for guiding airflow from the inlet to the outlet is arranged in the pollination channel, so that the tool sucks male parent pollen through the inlet and conveys the pollen to female parents through the pollination channel and the outlet. Pollination is assisted by air flow transmission across the height difference, and the inlet and the outlet are trumpet-shaped. In the invention, the tool is used for sucking pollen of the male parent through airflow in the walking process and guiding the pollen to the female parent, so that the height difference between the male parent and the female parent is overcome, and the pollination rate is improved under the condition that the height difference between the male parent and the female parent is relatively large.

This invention belongs to the field of modular prefabricated floor slab technology, and more particularly to a modular prefabricated building floor slab structure, including a floor slab body. Multiple locking mechanisms and multiple U-shaped reinforcing bars are equally spaced on both sides of the floor slab body. The locking mechanisms and U-shaped reinforcing bars on both sides of the floor slab body are centrally symmetrically distributed. Each locking mechanism includes a box detachably mounted on the floor slab body. Inside the box is a unidirectional rotating column, and two centrally symmetrically distributed levers are fixedly mounted on the side of the rotating column. This invention, by setting multiple sets of cooperating locking mechanisms and U-shaped reinforcing bars between adjacent floor slab bodies, applies active traction force to the slabs during splicing, creating reliable pre-stress at the joint, transforming "passive filling" into "active pressing," effectively overcoming the problem of penetrating micro-cracks caused by inconsistent drying shrinkage deformation in traditional post-cast strips.

The utility model provides a silk quilt processing and flattening device which comprises a working base, a conveying assembly and an adjusting assembly, and the conveying assembly comprises a driving roller and a driven roller; two ends of the driving roller and the driven roller are rotationally connected with two sides of the working base respectively; the adjusting assembly comprises an L-shaped frame; the bottom of the L-shaped frame is fixedly connected with the top of the working base; according to the silk quilt flattening device, the conveying assembly is arranged to drive a silk quilt to move, the silk quilt can be flattened while moving, the flattening efficiency is improved, the adjusting assembly is arranged to limit the silk quilt, the problem that a certain height difference exists in a flattening plane due to the fact that the silk quilt may deviate when being flattened can be solved, and the flattening efficiency is improved; and the vibration plate at the bottom end of the clamping rod can vibrate up and down, so that the flattened silk quilt is continuously and repeatedly pressed down, the silk quilt is conveniently pressed into the bottom of the arc-shaped pressing plate at the back to be limited, and the flattening effect is further improved.

The utility model discloses a photovoltaic cell pin power-on test device. The photovoltaic cell pin power-on test device comprises a pressing mechanism and a driving mechanism. The pressing mechanism comprises a pressing plate, the lower end of the pressing plate is provided with power-on copper bars which are arranged in parallel at intervals, and the lower ends of the power-on copper bars are provided with pins which are arranged at intervals; the driving mechanism comprises a driving seat, the driving seat is rotatably matched with the rotating table, angle adjusters abutting against the adjusting table are in threaded connection with the two sides of the driving seat, a pressing plate of the pressing mechanism is rotatably matched with the driving seat of the driving mechanism, and the angle of the pressing plate can be accurately adjusted by rotating the angle adjusters at the front end and the rear end of the driving seat before testing operation. It is ensured that the pressing plate provided with the electrifying plate is kept horizontal, and height difference is avoided; in the testing process, the electric cylinder module is used for driving downward pressing for pressing, so that the whole surface of the pin head on the power-on copper bar is in contact with the photovoltaic battery piece, and the battery piece is prevented from being broken due to the angle problem.

The present invention discloses an aluminum profile shaping device, which relates to the technical field of aluminum processing, and comprises a horizontal workbench, a vertical workbench is fixedly installed on the back of the horizontal workbench, a plurality of supporting mechanisms and side limiting mechanisms are arranged on the top of the horizontal workbench, the supporting mechanism is used to support the aluminum profile, the side limiting mechanism is used to prevent the aluminum profile from lateral deviation during the shaping process, a detection marking mechanism is arranged on one side of the horizontal workbench, the detection marking mechanism is used to detect the flatness of the aluminum profile after shaping, and mark the uneven position, and a plurality of mounting parts are slidably connected through the front and rear ends of the vertical workbench. The present invention can heat the aluminum profile to be shaped, so that the aluminum profile is easier to deform during the shaping process, reduce the risk of cracks and fractures, and detect the aluminum profile after detection, quickly locate the uneven position of the top surface of the aluminum profile, and improve the shaping efficiency of the aluminum profile.

The invention discloses motor shaft dimension detection equipment, and relates to the technical field of automatic visual inspection, the equipment comprises a lower rack, an upper rack, a side rack, a feeding assembly, a transfer assembly, a material classification assembly, a visual assembly and a positioning fixing assembly, the side wall of the lower rack is fixedly connected with the side rack, the upper surface of the lower rack is fixedly connected with the upper rack, and the lower surface of the lower rack is fixedly connected with the lower rack. A controller is arranged in the lower rack, a display screen is arranged on the inner top wall of the upper rack, and the display screen is connected with the controller. The device is simple in structure, compared with traditional disc type detection equipment, a set of discharging transfer module is omitted, meanwhile, PPU transfer is adopted, the transfer efficiency is high, the UPH can reach 4000, meanwhile, compared with a rotating disc type structure, a detection carrier is fixed, stability is better, compared with the traditional disc type detection equipment, each station does not need to be rotated to the position of a detection camera, and the detection efficiency is high. The height difference is avoided, and the detection precision is higher.

The utility model relates to the technical field of agricultural product processing equipment, in particular to a cutting assembly of an agricultural product splitting machine, which comprises a cutter group main board and a motor, an eccentric wheel is arranged at the output end of the motor, and a transmission swing arm is rotatably connected onto the eccentric wheel; an oil storage groove is formed in the cutter set main plate, guide blocks are arranged in the oil storage groove, a sliding block is arranged between the two guide blocks, one end of the transmission swing arm is rotationally connected with the upper end of the sliding block, a cutter clamp pressing block is fixedly installed on the cutter set main plate, and a cutter clamp is fixedly arranged in the cutter clamp pressing block. The motor drives the eccentric wheel to rotate, the transmission swing arm drives the sliding block to slide between the two guide blocks in the rotating process of the eccentric wheel, the cutter holder pressing block fixes the cutter holder and the cutter set main plate into a whole, and only the height of the cutter set main plate needs to be adjusted during installation. And the problem of height difference between the cutter clamp and the cutter group main plate in the adjusting process can be effectively avoided, so that friction and noise are reduced, and the service life of the cutting assembly is greatly prolonged.

The utility model discloses an anti-deformation connecting structure of a prefabricated water channel, which comprises a plurality of linear steel bars embedded in the wall thickness of the prefabricated water channel on one side of a joint, and the linear steel bars are exposed out of the end face of the prefabricated water channel on the side. A plurality of linear pre-embedded sleeves in one-to-one correspondence with the linear steel bars are pre-embedded in the wall thickness of the prefabricated water channel on the other side of the splicing position, the linear pre-embedded sleeves are not exposed out of the end face of the prefabricated water channel on the side, and the prefabricated water channels on the two sides of the joint position are connected with the linear pre-embedded sleeves in an inserted mode through the linear steel bars; the linear steel bars are telescopically inserted and connected into the linear embedded sleeves, and joints of the prefabricated canal are filled with asphalt mastic. The problem of dislocation and deformation caused by uneven settlement of the prefabricated water channels on the two sides of the joint can be solved, water leakage is avoided, and unsmooth drainage is avoided.

The invention belongs to the technical field of ship bodies, and relates to an auxiliary advancing device and method for shallow water road surface paving, the device comprises an assault boat and a bracket, the assault boat is placed above the bracket, fixed hanging rings are fixedly installed above the left side and the right side, close to a bow, of the assault boat, and a first supporting frame is installed below the assault boat; first wheel set frames are fixedly installed on the side walls of the two ends of the first supporting frame, the first wheels and the second wheels which can fall to the ground are installed below the assault boat, the assault boat can smoothly run in a shallow water area which does not meet the draught depth requirement or when a road surface is paved, and the hidden danger of stranding, pulping and the like is avoided; in the ponding rescue process, the assault boat can be freely switched between the ponding area and the non-ponding area, the emergency rescue efficiency is improved, the assault boat can be driven by the first wheel and the second wheel in combination with manpower to move before and after being used, and the link of hoisting operation of a crane and a truck is omitted.

The utility model discloses a direct-touch type ground splicing structure, and relates to the field of ground stone installation, the direct-touch type ground splicing structure comprises a fine aggregate concrete layer, a thick daub bonding layer and stone plates which are sequentially laid on a reinforced concrete floor layer from bottom to top, and expansion joint strips are arranged between the stone plates; an expansion joint strip is arranged on the surface of the stone plate, an auxiliary assembly used for auxiliary positioning is arranged outside the expansion joint strip, an arc groove is formed in one side of the surface of the stone plate, and arc plates matched with the arc groove are fixedly connected to the two sides of the expansion joint strip correspondingly. When the supporting plate is located in the positioning piece, the supporting plate is opened through the elastic force of the torsional spring and abuts against the inner wall of the positioning piece, the expansion joint strip is clamped, the position of the expansion joint strip is more stable, and position deviation caused after the expansion joint strip is impacted can be prevented.

The utility model relates to the technical field of faucet elbow machining, and discloses a numerical control lathe fixture for faucet elbow machining, which comprises a support part and a control switch, the surface of the support part is slidably connected with a fixture lower part, the two sides of the support part are provided with accommodating holes, the interiors of the accommodating holes are fixedly connected with limiting assemblies, and the limiting assemblies are fixedly connected with the support part. Connecting plates are fixedly connected to the edges of the two sides of the lower clamp part correspondingly, and adjusting assemblies are fixedly connected to the surfaces of the two connecting plates correspondingly. According to the numerical control lathe clamp for machining the faucet elbow, through the arrangement of the clamp lower part, the adjusting assembly, the clamp upper part and the micro rolling wheels, the effect of clamping pipe bodies with different thicknesses is achieved, in addition, the pipe bodies are convenient to move, and the situation that when the faucet elbow is machined, the pipe bodies need to move in the clamp, and the machining efficiency is improved is avoided. And the interior of the clamp can scratch the pipe body, and the pipe body is difficult to move in the clamp easily, so that the practicability and the adaptability of the clamp in use are improved.

The utility model relates to the technical field of bridge deck crack repairing, and discloses a bridge deck crack repairing device for bridge reinforcement, which comprises a placing plate, sliding seats fixedly arranged on the front side surfaces of the placing plate, a right pushing handle fixedly arranged on the right side surface of the placing plate, an air blower fixedly arranged on the bottom surface of the left end of the placing plate, and a cleaning mechanism arranged below the placing plate. A sewing mechanism is arranged above the placing plate, a sewing groove is formed in the top surface of the left end of the placing plate, an adjusting groove is formed in the top surface of the right end of the placing plate, the cleaning mechanism comprises a guide part and a flattening part, and the sewing mechanism comprises a sewing part and a stirring part. The guiding part comprises a connecting rod, adjusting rods are hinged to the front end and the rear end of the connecting rod, driving grooves are formed in the top faces of the front adjusting rod and the rear adjusting rod, and brushing plates below the adjusting rods clean the glued bottom face, so that the situation that the height difference is generated on the pavement surface due to the fact that the gluing thickness of the bottom face seam repairing position is too large is avoided; and the fixed frame is used for flattening the repaired pavement, so that the flatness of the surface of the repaired pavement is ensured.

The utility model relates to the technical field of curtain accessories, and discloses a connection curtain track with a mute strip, which comprises at least two guide rail bodies which are connected together, and is characterized in that a sliding cavity is arranged in each guide rail body, the at least two guide rail bodies are connected through the mute strip, and the mute strip is clamped in the sliding cavity; according to the connection curtain track with the mute strips, the mute strips are clamped in the sliding cavities, and meanwhile, the interiors of the at least two guide rail bodies are connected together through the mute strips, so that the at least two guide rail bodies are smoother, the connection position can be covered, the height difference of the sliding surfaces is prevented, and the service life of the curtain track is prolonged. Therefore, noise is prevented when the pulley slides in the sliding cavity.

The utility model discloses a fine positioning LED module screw subassembly of fine adjustment, relates to screw technical field, including the screw cap, and the screw hole is equipped in screw cap, still include the screw rod of fixed in the bottom of screw cap, and the screw rod is divided into the thread locking area and displacement active area, and the thread locking area is located the bottom of screw rod, and the displacement active area is located the top of thread locking area, and the diameter is less than thread locking area, and the gasket is closely combined with the bottom of screw cap, and the gasket is connected on the displacement active area, and the root base is fastened through the thread locking area, and the displacement active area realizes height accurate fine adjustment, and the gasket is comprehensive protection subassembly, and the fine adjustment part, the utility model discloses the fine adjustment part of design, when the LED module needs to adjust height position, make the movable calibration seat receive the external force drive effect, and then drive movable calibration seat to slide up and down along displacement active area and adjust, ensure that can be accurately regulated and controlled in the process of module installation and subsequent use, avoid the height difference of LED display module after installation.

The invention discloses a reaction furnace, and relates to the technical field of reaction furnaces. A reaction furnace comprises a reaction furnace body and a material conveyor, a feeding bin is arranged at the position, close to the left side, of the top of the reaction furnace body, a feeder is arranged at the position, close to the top, of the left side of the reaction furnace body, and an air inlet end is formed in the position, close to the lower surface, of the left side of the reaction furnace body; a second air outlet end is formed in the position, close to the right side, of the top of the reaction furnace main body, a first air outlet end is formed in the lower surface of the right side of the reaction furnace main body, a grate bed is arranged in the reaction furnace main body, a discharging hopper is arranged at the bottom of the reaction furnace main body, and a cooling machine is fixedly connected to the bottom of the discharging hopper; a material crusher is fixedly connected to the bottom of the cooling machine, a filter sieve is arranged at the position, close to the discharging end, in the material crusher, a collecting hopper is fixedly connected to the main discharging end of the material crusher, and a discharging opening is formed in the bottom of the collecting hopper. And the negative pressure absolute value of the air outlet of the reaction furnace is greater than that of the air inlet.

The invention relates to the technical field of PEM hydrogen production membranes, in particular to a PEM hydrogen production membrane electrode assembly and a preparation method thereof. The method comprises the following steps: 1, cutting a base membrane according to the size of a proton membrane to obtain a cathode gasket and an anode gasket for later use; 2, stacking a cathode gasket, a proton membrane and an anode gasket, and carrying out hot pressing at 100-150 DEG C for 30-120 seconds to obtain a membrane electrode; 3, filling UV glue into the membrane electrode, and curing to form a glue layer; tightly connecting the anode titanium porous transmission layer and the cathode titanium porous transmission layer with the proton membrane on the two sides of the proton membrane respectively to assemble the electrolytic cell; therefore, the PEM hydrogen production membrane electrode assembly is obtained.

This utility model discloses a close-fitting device for suspended aluminum ceiling panels, including a suspended aluminum ceiling panel, a limiting washer, and a bolt and nut assembly. Sliding grooves are formed on both sides of the aluminum ceiling panel. One end of the bolt and nut assembly is slidably embedded in the sliding groove of the aluminum ceiling panel, and the other end of the bolt and nut assembly extends upward through the sliding groove. The limiting washer has several connecting holes spaced apart. The other end of the bolt and nut assembly passes through the connecting holes and is adjustablely connected to the limiting washer. The limiting washer is positioned at the fixed suspension point of the ceiling system and at the joint of several adjacent aluminum ceiling panels, allowing several adjacent aluminum ceiling panels to be adjusted and closely fitted below the limiting washer using the bolt and nut assembly. This utility model relates to the field of architectural decoration engineering technology and can solve the problems of misalignment at the joints of adjacent aluminum ceiling panels and difficulty in controlling the flatness of the ceiling panels in the prior art.

The invention provides a flexible circuit board, a display module and a display device, the flexible circuit board comprises a first circuit board and a second circuit board, and the first circuit board at least comprises a first single-layer board and a second single-layer board which are stacked; the second circuit board comprises a third single-layer board arranged at one end of the first single-layer board, the third single-layer board is connected with the first single-layer board, and the surface, close to the second single-layer board, of the third single-layer board is flush with the surface, close to the second single-layer board, of the first single-layer board. The groove exposes a part of the first single-layer board, and the arrangement of the groove can increase the adsorption area of the adsorption equipment on the flexible circuit board, thereby improving the adsorption stability of the adsorption equipment. Meanwhile, a device part is arranged on the surface, away from the first single-layer plate, of the second single-layer plate, and the device part and the side wall of the groove are arranged at intervals, so that interference between the device part and the adsorption equipment is avoided.

The utility model discloses a line folding device, which aims to solve the technical problem that an inductance coil cannot be correspondingly and completely welded during welding due to height difference between two leads of the single-layer inductance coil in the prior art, and comprises a main bracket, a winding mechanism fixed on the main bracket, and a line folding mechanism, the wire folding mechanism comprises a wire folding driving part and a wire folding block, the wire winding mechanism comprises a wire winding driving part, a winding column and a supporting table, the winding column is fixed to the supporting table, and the upper-end leads of the odd layers of inductance coils can be pressed downwards to be folded through the wire folding mechanism, so that the upper-end leads and the lower-end leads are located on the same plane; the height difference between the two leads is avoided, the complete welding of the upper end lead and the lower end lead of the inductance coil is ensured, the welding stability and the excellent rate are improved, and the quality of the inductance coil produced by the winding machine is improved.

The utility model relates to a height difference and elevation angle adjusting system for a paver screed plate, and belongs to the field of pavers. According to the technical scheme, the device comprises a telescopic mechanism and a telescopic ironing mechanism, an adjusting device is arranged between the telescopic mechanism and the telescopic ironing mechanism and comprises an upper support, one end of the upper support is hinged to the telescopic mechanism, the other end of the upper support is hinged to an adjusting mechanism, the adjusting mechanism can stretch out and draw back, and the other end of the adjusting mechanism is hinged to the telescopic mechanism; a driving mechanism is arranged at the lower end of the upper support and connected with at least one lifting mechanism, the driving mechanism is used for driving the lifting mechanism to ascend and descend, and the lower end of the lifting mechanism is connected with the telescopic ironing mechanism. By arranging the driving mechanism and the lifting mechanism, when the telescopic ironing mechanism is lifted, the lifting action of the lifting mechanism can be completed by controlling the driving mechanism, so that the height difference adjustment of the telescopic ironing mechanism is completed, and the problem that the height difference cannot be manually adjusted is avoided.

The utility model discloses a coiled material winding machine which comprises a main body frame, a winding disc shaft and a reciprocating screw rod are installed in the main body frame, and the winding disc shaft is connected with the reciprocating screw rod in a rotating mode. And a driving motor is arranged below the winding disc shaft and is used for driving the winding disc shaft to drive the reciprocating screw rod to wind the coiled material in a reciprocating manner. According to the utility model, the driving motor drives the winding disc shaft to rotate through the transmission of the belt driving wheel assembly, and further drives the reciprocating screw rod to reciprocate through the transmission of the chain driving wheel assembly so as to wind the coiled material, so that the coiled material can be uniformly wound, and the problem of different heights of the coiled material is avoided while the winding efficiency is effectively improved.