34results about How to "Adjust the depth" patented technology

The present invention belongs to the field of agricultural machinery, and is a kind of elastic tine type rice field weeder. The weeder includes walking wheel, rice straw separator, engine, driving unit fixed to the shaft of walking wheel, chain driven weeding unit, and elevating unit on the walking unit. Weeding with the elastic tine rotating wheel mechanically has low weeding cost, and is fast, efficiency and favorable to producing green rice product. The present invention has easily regulated depth of weeding and is suitable for matching with various type of rice seedling transplanting machines.

The invention relates to a small agricultural seeder. According to the seeder, in order to solve the problem that when a ploughshare is used for turning soil, the ploughshare will incline towards the other side due to the counterforce of the soil, forward ploughshares and reverse ploughshares are designed, side thrust generated when the ploughshares are used for turning the soil is balanced, and the seeder is stabilized to stably move forwards to carry out seeding; seeds with different sizes can be sown due to grooves in the rear portions of the ploughshares; under the control of flow insertion sheets, according to the advancing speed of the seeder pulled by a tractor, the number of leaked seeds can be flexibly adjusted, and thus the purpose that different dry land crops can be sown through one seeder can be achieved; fixing screw holes formed in the front of the ploughshares are formed in sliding grooves of the framework of the seeder, the depth, the width and the separation distance of soil turning of the ploughshares can be adjusted at will, the left side and the right side of the upper portion of each ploughshare are each provided with four small screw holes which are used for assembly of a seed containing device, and the left side and the right side of the lower portion of each ploughshare are each provided with four small screw holes which are used for assembly of a covering device. The size of the seeder and the size of the ploughshares can be flexibly determined according to the actual production requirements, and are not limited temporarily, and the forward ploughshares and the reverse ploughshares are flexibly and symmetrically assembled.

The invention discloses an embossing mechanism facilitating adjustment of grain depth and shallowness for tissue production. The mechanism comprises a supporting assembly and a printing assembly, thesupporting assembly comprises a bottom plate, an adjusting cushion foot, a mounting bolt, a right vertical plate, a left vertical plate, a sliding groove, a fixed block and a sliding block. Accordingto the mechanism, the arrangement of the adjusting cushion feet and the mounting bolt in the supporting assembly not only has the function of adjusting the level of the bottom plate, but also has thefunction of adjusting the height of the printing assembly, so that a whole device is more conveniently applicable to a production line of tissue, in the printing assembly, the arrangement of the adjusting assembly realizes the function of adjusting the distance between two printing sleeves and further realizes the function of adjusting the grain depth and shallowness, due to the arrangement of a driving assembly, after the distance between the two printing sleeves is adjusted to change, a fixed gear and a movable gear can be tightly engaged together without replacing parts, the synchronous relative rotation function of the two printing sleeves is guaranteed, the operation is convenient, and the practicability is improved.

The invention relates to the field of weeding, in particular to a eradication type weeding machine for agricultural production. The machine comprises a vehicle body, a weeding mechanism, a root removing mechanism, a spraying mechanism and a smoothing mechanism, the weeding mechanism and the vehicle body are fixedly mounted, the weeding mechanism is fixedly mounted at the front end of the vehicle body, the spraying mechanism and the vehicle body are fixedly mounted, the spraying mechanism is fixedly mounted at the middle lower end of the vehicle body, the lower end of the vehicle body is further fixedly provided with the root removing mechanism, the root removing mechanism is fixedly installed at an output end away from the weeding mechanism, the smoothing mechanism and the vehicle body arefixedly installed, and the smoothing mechanism is fixedly installed at the end, away from the weeding mechanism, of the vehicle body. The machine can effectively eradicate weeds and loosen the land.

The invention relates to an electric lifting cup saucer which includes a panel. The panel is provided with a cup placing cavity, the lower part of the cup placing cavity is provided with a liftable cup holder, a driving device is arranged in the cup holder, a driving shaft is arranged on the driving device, the driving shaft is matched with a turbine for transmission, the turbine sleeves a vertical worm, the turbine can be lifted up and down on the vertical worm and drives the cup holder to move up and down when rotating, and the vertical worm is arranged below the panel. By means of the lifting cup saucer, the driving shaft is driven by the driving device to rotate, then the turbine is driven to rotate, the turbine is lifted up and down in the process of rotation on the vertical worm, andthe cup holder is driven. By means of the process, the depth of the cup placing cavity can be conveniently adjusted, cups with different depths can be placed, and the practicability is high.

The invention discloses a simple walking plough, belongs to the technical field of farming instruments, and relates to an improvement on the structure of the walking plough. The simple walking plough provided by the invention has the advantages of simple structure, convenience in use, saving of time and labor and convenience in production and machining. The simple walking plough comprises a plough body, and is characterized in that the front end of the plough body is a lower part, and the back end of the plough body is a higher part; a vertical rod is arranged at the middle position of the higher part; a soil pushing wall is arranged at the lower end of the vertical rod; a pin rod is arranged on the end part of the back end of the plough body; a bottom rod is arranged at the lower end of the pin rod; a soil shoveling device is arranged at the front end of the bottom rod; a ploughing device is arranged on the end part of the front end of the plough body.

The invention discloses a sowing and fertilizing integrated machine for wheat and belongs to the field of agricultural mechanical equipment. The sowing and fertilizing integrated machine is mainly used for solving the problems of current wheat planting that procedures are complicated, time-consuming and labor-consuming and the efficiency is low due to the fact that plowing is carried out prior to sowing. A connecting rack is ring-semicircle-shaped and is welded to one end of a supporting frame, the supporting frame is of a rectangular frame, furrow plows are welded to the left and right sides of the front end below the supporting frame, a fertilizer can is fixedly mounted at the front end above the supporting frame through bolts and communicates with fertilizer applying pipes through springs, a seed can is fixedly mounted at the rear side of the fertilizer can above the supporting frame through bolts, the lower end of the seed can communicates with seed sowing pipes through springs, soil scraper plates are welded to rear ends of the seed sowing pipes, and roller wheels are mounted at the left and right sides of the lower end below the supporting frame. According to the sowing and fertilizing integrated machine for the wheat, rotary tillage, sowing and fertilizing for the wheat are integrated, so that the sowing efficiency is effectively increased, and the whole planting process is shortened; and through arranging the springs, an effective bump relieving action can be achieved, and depth of sowing and fertilizing can be regulated.

The invention discloses a soil-loosening device for agricultural planting. The soil-loosening device comprises a positioning part and a plurality of rake teeth, wherein the positioning part comprisesa fixed member, a limit member and a connecting member; the connecting member is arranged at the center of the top part of the fixed member; two ends of the fixed member are fixedly connected with thelimit member; a plurality of adjusting bolts are arranged on the limit member; the exteriors of the plurality of the adjusting bolts are respectively provided with a through hole; each adjusting member arranged on a rake tooth penetrates through a through hole to connect to an adjusting bolt in a threaded manner; each adjusting member is composed of an adjusting nut and a connecting bearing; eachrake tooth is divided into a top adjusting part and a bottom soil-loosening part; each top adjusting part has a hollow structure; the interior of each top adjusting part is provided with a cavity; the bottom soil-loosening part has a solid structure; and the bottom part of each bottom soil-loosening part is of a pointed cone shape. According to the invention, through arrangement of the adjustingbolts and the adjusting members, the length of the part of each rake tooth away from a limit member can be adjusted, so the device provided by the invention has the effect of adjusting the ploughing depth of the rake teeth; thus, the device provided by the invention can adjust the loosening depth of according to growth habits of different crops, is applicable to mechanical use, and facilitates growth of the crops.

The invention discloses an anchor rod swing control device and method in anchor rod production. The device comprises a production platform, wherein a transfer bracket is arranged above the production platform, an anchor rod fixing device is slidably arranged on the production platform, a first driving device used for driving the anchor rod fixing device to slide is fixed on the production platform, a feeding platform and a discharging platform are arranged on the production platform, the feeding platform and the discharging platform are linearly distributed, a transfer device used for transferring an anchor rod is arranged below the transfer bracket, and the transfer device is located between the feeding platform and the discharging platform. According to the invention, the anchor rod swing control device transfers an anchor rod to be subjected to threaded machining to an anchor rod fixing device through a transfer device, the two ends of the anchor rod are clamped through the anchor rod fixing device, the surface of the anchor rod is heated, a silk thread is wound around one end of the anchor rod, the anchor rod fixing device is driven by a first driving device to move while the anchor rod rotates, threads are formed on the surface of the anchor rod under winding of the silk thread, and the thread pitch of the threads is adjusted by controlling the moving speed of the anchor rod.

The invention discloses an automatic sugar-free biscuit forming machine controlled by a PLC. The automatic sugar-free biscuit forming machine comprises a bottom plate and stand columns symmetrically arranged at the top end of the bottom plate. A shell is arranged at the top end of the bottom plate and is arranged between the stand columns. A conveying belt penetrating the shell is arranged betweenthe stand columns. Entrances and exits matching the conveying belt are formed in the two sides of the shell. A compartment is arranged at the top end in the shell; a storage chamber is arranged on one side in the compartment; a feeding hopper connected with the storage chamber is arranged at the top end of the bottom plate; a guide pipe is arranged at the bottom end of the compartment below the storage chamber; a feeding channel matching the guide pipe is arranged on the conveying belt; and a pressing wheel is arranged in the shell on one side of the guide pipe. The biscuit forming machine has the advantages that biscuits are automatically formed through a forming groove in the surface of the pressing wheel; the operation is easy, time and labor are saved, the working efficiency and the production efficiency are improved, use is more convenient, and labor is saved; the depth of biscuit extrusion of the pressing wheel can be adjusted through the design of a rotating motor, so that theproduction efficiency is improved.

The invention discloses an algae cleaning device. The algae cleaning device includes a mounting plate, a cutting mechanism and a transport mechanism; the mounting plate is detachably connected to oneside of the hull; one end of the cutting mechanism is arranged on the mounting plate, and the other end extends below the water surface and can cut algae; the transport mechanism includes a belt conveyor and water pumps; the belt conveyor is arranged on the side of the hull provided with the mounting plate; one end of the belt conveyor is located below the water surface, and the other end is located above the water surface; the belt conveyor is inclined toward a direction away from the cutting mechanism; the water pump is arranged on the hull; the conveyor belt of the belt conveyor is providedwith a plurality of suction holes; and the plurality of water pumps are communicated with the suction holes through water drawing pipes. Using the algae cleaning device, through the cutting mechanismand the transport mechanism, the underwater algae can be cut and transported out of the water surface, which does not require manual salvage, saves manpower, and improves the work efficiency.

A biasing type arc suppression coil, belongs to electric technique field. This invention includes: biasing coil\three-limb core that takes grade 2 to grade 3 reduction of cross section in the compensation coil and magnetic circuit, the biasing coil is two series-wound cylinder-like package, each sleeves the two side limbs of the three-limb core, the compensation coil is 3 cylinder-like package, make the two cylinder-like package parallel connection, then connecting them with the third cylinder-like package in series, the two parallel connecting cylinder-like package are sleeved on exterior of the biasing at the three-limb core's two side limbs, the third cylinder-like package sleeves on the middle limb of three-limb core, and ring the air gap of the middle limb of three-limb core.

The invention discloses a special and automatic lamp holder point riveting machine, belongs to the field of machining equipment, and relates to a lamp holder riveting machine. The special point riveting machine comprises a rivet pressing device, compression springs, connecting rods, a connecting disk, a cylinder, a top plate, stand columns, a lifting plate, limiting clamping plates, a front bottom plate and a rear bottom plate, wherein the rivet pressing device comprises a polyformaldehyde sleeve, a conical platform, long-strip-shaped levers, small tension springs, round pins, riveting needles, a fixing shaft base, small square blocks and a small compression spring, the polyformaldehyde sleeve and the conical platform are connected and arranged on the upper portion of the fixing shaft base in a sleeving mode, the round pins penetrate through the middles of the small square blocks fixed by the fixing shaft base, the long-strip-shaped levers are hung on the round pins, the riveting needles are fixed to the lower ends of the long-strip-shaped levers, the upper portions of the long-strip-shaped levers are sleeved with the small tension springs, the polyformaldehyde sleeve, the connecting rods and the connecting disk are fixedly connected with a cylinder piston, the compression springs penetrate through the middles of the connecting rods, and the fixing shaft base is fixed to the lifting plate. Through the special machine, riveting points are unified and uniform in depth, bad products are reduced, the structure of the machine is simplified, and meanwhile the machine adapts to assembly line conveying and improves riveting efficiency.

The invention discloses an automatic fixed-point digging agricultural planting machine in the field of agricultural planting, which comprises a mounting mechanism, a feeding mechanism and a tunneling mechanism, the tunneling mechanism comprises a tunneling outer cylinder, a fixing plate is fixedly mounted on the outer wall of the bottom end of the tunneling outer cylinder, and a plurality of groups of blades are fixedly mounted on the outer wall of the fixing plate; external threads are uniformly arranged on the outer wall of the upper part of the tunneling outer cylinder, a ball screw platform is spirally matched with the outer wall of the tunneling outer cylinder, conical teeth are uniformly arranged on the outer wall of the bottom of the ball screw platform, a tunneling inner cylinder is arranged in an inner cavity of the tunneling outer cylinder, the tunneling inner cylinder is rotationally matched with the tunneling outer cylinder, and holes are formed in the bottoms of the tunneling inner cylinder and the tunneling outer cylinder; and a guide cylinder is fixedly installed on the outer wall of the top of the tunneling inner cylinder, an inverted-cone-shaped limiting cylinder is fixedly installed on the outer wall of the guide cylinder, and a fixed feeding cylinder is arranged on the top of the tunneling inner cylinder. According to the device, automatic seed and fertilizer burying after digging is achieved, cooperation is coherent, linkage seed and fertilizer planting after digging is achieved, and installation is convenient.

The invention discloses water quality monitoring equipment for lake water, and relates to the technical field of water quality monitoring. The lake water quality monitoring equipment comprises a suspension bin, the bottom of the suspension bin is fixedly connected with a limiting frame, one side of the limiting frame is clamped with a collecting frame, the collecting frame is fixedly connected with the limiting frame through a screw rod, and the collecting frame is located at an opening in one side of the limiting frame. In the moving process of the storage bin, a third spring is extruded through a baffle till the end of a movable frame corresponds to an opening of the storage bin, and the end of a through pipe penetrates through a rubber cap of the opening of the storage bin; the multiple storage bins at different positions communicate with the through pipes at different positions at the same time, water in the lake is introduced into the storage bins through the through pipes, the multiple storage bins collect the water in the lake through the through pipes, and the storage bins at different positions can collect water at different depths in the lake water at the same time; therefore, it is guaranteed that water in different storage bins is lake water at the same time and different depths in the lake, and convenience of lake water collection is guaranteed.

The invention discloses a soil loosening device for agricultural planting. The soil loosening device comprises a box body, wherein a connecting plate is mounted on one side of the box body, a controller and hydraulic pumps are mounted on the connecting plate, a data line is connected between the controller and each hydraulic pump, hydraulic lifting columns are arranged at the bottom of the connecting plate, the hydraulic pumps and the hydraulic lifting columns are connected through oil conveying pipes, fixing plates are arranged at the telescopic ends of the hydraulic lifting columns, fixing rods are mounted between the fixing plates, connecting rods are mounted on the fixing rods, and coulters are arranged at the bottoms of the connecting rods. When a worker needs to loosen the soil, the box body can be fixedly connected with a towing machine in a bolt connection mode, then the controller controls the hydraulic pumps to control extension of the hydraulic lifting columns according to the planting requirement of crops, and the telescopic ends of the hydraulic lifting columns drive the connecting rods to longitudinally and linearly move, therefore, the depth of the coulters inserted into the land can be controlled, and the soil loosening depth can be conveniently adjusted according to growth habits of different crops.

The invention belongs to the field of sports equipment, and relates to a helmet bringing convenience to handstand rotation for a street dancer. The helmet is characterized in that a lower circular plate and an upper circular plate of a grounding face are hinged to each other in a clearance fit mode through a shaft, an elastic cushion is arranged on the upper circular plate, a hook-shaped adhesion piece is arranged on the inner side of the outer end of a forehead fastening belt in a sewn mode, an annular adhesion piece is arranged on the outer side of the inner end of the forehead fastening belt in a sewn mode, ten cloth sleeves are arranged outside the forehead fastening belt in a sewn mode, and the left end of a rope penetrates through ten annular holes and ten cloth sleeve holes formed in the upper circular plate in an alternating mode so that the upper circular plate can be connected with the forehead fastening belt to form the overall structure of the helmet. The depth of the helmet can be adjusted after the left end or right end of the rope stretches or contracts and is tied. The adhesion pieces can be connected by tensioning the outer end of the forehead fastening belt, and then different forms of heads of users can be fastened. On the basis that the roughness and friction coefficients of the upper surface of the lower circular plate and the roughness and friction coefficients of the lower surface of the upper circular plate are small, the upper circular plate and the lower circular plate can rotate freely relative to each other.

The invention provides a printing machine. The printing machine comprises a rack, a feeding mechanism, a stamping mechanism and an ink box, wherein the feeding mechanism, the stamping mechanism and the ink box are arranged on the rack. The stamping mechanism comprises a lifting slider, a main shaft, a stamping wheel and a locking mechanism, wherein the lifting slider is connected with the rack, the main shaft comprises a main shaft body and a movable body, the main shaft body is in pivoted connection with the lifting slider, the movable body is fixedly connected with the main shaft body through the locking mechanism, and a shaft hole is formed between the main shaft body and the movable body; one end of a rotary shaft of the stamping wheel is cooperatively connected with the shaft hole, anannular clamping protrusion on the inner wall of the shaft hole is cooperatively connected with an annular groove in the rotary shaft of the stamping wheel, and a strip-like boss on the inner wall ofthe shaft hole is cooperatively connected with a key groove in the rotary shaft of the stamping wheel. By means of the printing machine, the replacement process of the stamping wheel is simple and convenient.

The invention provides a multifunctional farm-oriented machine applicable to operation in hilly and mountain areas. The farm-oriented machine comprises a slab rack, a handrail, a power machine, land wheels and a transmission mechanism, and further comprises a bracket, a clamping piece and a seeding and farming device, the bracket is fixed on the upper surface of the slab rack and located around a first long notch, and the clamping piece is installed on the slab rack along any long edge of the first long notch; the seeding and farming device comprises a seed hopper, a flexible seed conveying pipe, a seed conveying foot and a farming head which are connected from top to bottom in sequence, the seed hopper is installed in the bracket, the seed conveying foot is arranged by penetrating through the first long notch, and the clamping piece is in clamping coordination with the end, far from the farming head, of the seed conveying foot. Through the multifunctional farm-oriented machine applicable to operation in the hilly and mountain areas, the plough share depth is adjusted as required, the operation method is simple and flexible, and the farm-oriented machine is applicable to shift work requirements of narrow topography and compound and various planted crops, and has good shakeproof performance; the equipment is light and dexterous, and can be carried and applied in sites of the complex filed environment.

The invention relates to an agricultural machine suitable for small-area cultivation. Small-sized agricultural mechanical equipment is provided with an engine 1, wherein the engine 1 is connected witha driving wheel 3 through a gear box 2; a gear shift rod 17 is arranged on the gear box 2 so as to achieve speed adjustment; the driving wheel 3 is connected with a small chain wheel 7 through a chain 4 and a transmission wheel 5; the small chain wheel 7 is connected with two large chain wheels 9 through a crawler 8; the two large chain wheels 9 are connected through a movable support rod 10; a spring 11 sleeves the movable support rod 10; the movable support rod 10 is arranged on a frame 12; a lifting lever 13 is also arranged on the frame 12; a clamping chain 6 is arranged at a tail end ofthe lifting lever 13 and can be adjusted in a multi-shift; a guide wheel 14 is arranged on the lifting lever 13; the guide wheel 14 is connected with a handle 18 arranged on an upper end of the frame12 through a connecting rod mechanism; a front end of the frame 12 is provided with an agricultural tool 15, such as a seed hopper, a fertilizer hopper, a weir, and the like; a switch of the hopper ispreferably disposed on the handle 18; a bracket 13 is disposed only at a rear end of the frame 12; and two wheels 16 are coaxially disposed on the bracket 13, and shafts of the wheels are connected to the small chain wheel 7 through a chain belt.

The invention discloses an agricultural planting loose soil device, which comprises a positioning part and a plurality of rake teeth. The positioning part comprises a fixing part, a limiting part and a connecting part. The connecting part is installed at the top center of the fixing part, and the two ends of the fixing part are fixedly connected Limiting parts, a number of adjusting bolts are installed on the limiting parts, and through holes are arranged on the outside of the several adjusting bolts. The adjusting parts installed on the rake teeth pass through the through holes and are threadedly connected with the adjusting bolts. The adjusting parts are connected by adjusting nuts and The rake teeth are composed of a top adjustment part and a bottom loosening part. The top adjustment part is a hollow structure with a cavity inside. The bottom loosening part is a solid structure and the bottom is a pointed cone. ; The present invention can adjust the length of the rake teeth to expose the limit parts through the provided adjusting bolts and adjustment parts, so that the device has the function of adjusting the rake teeth plowing depth, so that the depth of loose soil can be adjusted according to the growth habits of different crops, It is suitable for mechanical use and is conducive to the growth of crops.

A biasing type arc suppression coil, belongs to electric technique field. This invention includes: biasing coil\three-limb core that takes grade 2 to grade 3 reduction of cross section in the compensation coil and magnetic circuit, the biasing coil is two series-wound cylinder-like package, each sleeves the two side limbs of the three-limb core, the compensation coil is 3 cylinder-like package, make the two cylinder-like package parallel connection, then connecting them with the third cylinder-like package in series, the two parallel connecting cylinder-like package are sleeved on exterior of the biasing at the three-limb core's two side limbs, the third cylinder-like package sleeves on the middle limb of three-limb core, and ring the air gap of the middle limb of three-limb core.

The invention discloses an embossing roller for UPVC door and window profiles, which comprises a fixing plate, a roller and a roller fixing seat are arranged above the fixing plate, and the roller fixing seat is set on the two ends of the roller. outside, and the bottom of the roller fixing seat is connected to the fixing plate; the outer surface of the roller is provided with pattern grooves, the inside of the roller is provided with a mandrel, and the inside of the mandrel is provided with a The water hole, the upper and lower ends of the roller fixing seat are provided with oblong holes, and the adjustment screws are arranged in the oblong holes. When in use, the cooling water is connected to the water hole to effectively cool the roller, which is beneficial to long-term stable continuous production. The invention improves the production efficiency and the quality of the product, can realize the adjustment of the depth of the pressing pattern, and is convenient, reliable and practical to use.

The invention discloses a rice seeding machine with adjustable row number and row spacing, comprising a frame, a transmission shaft, a plurality of seeding assemblies installed on the frame, a slide plate installed at the bottom of the frame and used for leveling the field, A connecting frame for hooking up the rice transplanter and a sprocket for driving the transmission shaft to rotate are located in the middle of the frame. The frame is provided with a main beam pipe and a segmented beam pipe for installing the seeding assembly. The main beam The pipes are fixedly connected to the frame, the segmented beam pipes are installed at both ends of the main beam pipes, and the main beam pipes and the segmented beam pipes are provided with evenly distributed mounting holes for fixing the seeding components, so The seeding assembly includes an opener. The invention can flexibly adjust the number of rows and row spacing for sowing, and has low manufacturing and use costs; it has the function of leveling muddy ground, and has good leveling effect; .

The invention relates to a chair-back adjusting device which comprises a tail seat, a fixing seat arranged at the tail seat and a control piece arranged between the tail seat and the fixing seat, the tail seat is provided with a lower supporting plate and an upper supporting plate, the fixing seat is provided with a connecting end arranged between the upper supporting plate and the lower supporting plate, the upper supporting plate, the lower supporting plate and the connecting end tightly hold so as to produce enough friction resistance for preventing the connecting end from freely moving between the upper supporting plate and the lower supporting plate; and the control piece is operated to interlock the fixing seat so as to lead the fixing seat to move oppositely to the tail seat. The invention realizes that the depth of the chair-back is adjusted by single-handle operation, and achieves the effect of assist to move the chair-back without a human body or additional labor power; meanwhile, the invention provides the safety chair-back adjusting device which can effectively prevent a user from being hurt.

The invention provides a PVC extruder and relates to the field of extruders. The PVC extruder comprises a machine table board, a control panel, a device box, an air dispersing box, an extrusion connecting column, an inverted connecting body, a fixed plate, an access door, a base, an air dispersing groove, an extruding body and an extruding head, wherein an expanding movable groove is fixedly inlaidin the inner side surface of the extruding head; an expanding movable strip is connected with the inner side of the expanding movable groove in a telescopic manner; a built-in hollow column is fixedly connected with the middle of the inner side of the extruding head; and the outer side surface of the built-in hollow column is not in contact with the inner side surface of the extruding head. In the PVC extruder, the expanding movable strip enables the surface of a PVC pipe to have a groove effect when the extruder is operated; a bulged sleeve is matched with the expanding movable strip to process a groove in the PVC pipe when the expanding movable strip machines the surface of the PVC pipe; a telescopic column enables the expanding movable strip to have a telescopic effect so as to adjustthe depth of the groove of the PVC pipe.