61 results about "Tube drawing" patented technology

The invention relates to the technical field of pipe machining equipment, in particular to metal copper pipe drawing equipment which comprises a reducing die and further comprises an upper supporting frame and a lower supporting frame which are fixed to the outer side of the reducing die, a mounting frame is fixed to the lower supporting frame, and a flattening part used for flattening the outer side of a copper pipe is mounted on the mounting frame. The upper supporting frame and the lower supporting frame are provided with an extrusion part used for abutting against the outer side of a copper pipe and a rail frame fixed to the lower supporting frame, and a movable base is installed on the rail frame in a sliding mode. And the linkage piece and the pressurizing piece are matched to drive the necked copper pipe to move towards the mold and enable the necked opening to penetrate through the mold, automatic necking and mold penetrating operation are achieved, manual necking by a worker is not needed, manual assistance by the worker is not needed when the copper pipe is drawn in batches, and the plate pulling efficiency is higher.

The utility model relates to a full -automatic pipe drawing machine belongs to electric power industry plastic pipe production technical field, including frame, the frame top is installed and draws the strip mechanism and rotating mechanism, is equipped with the hopper in rotating mechanism top, draws the strip mechanism and includes X direction linear module, Y direction linear module, draws the strip motor and rigidity axle, Y direction linear module is fixed in the slide table of X direction linear module, draws the strip motor and is fixed in the slide table of Y direction linear module, and rigidity axle is connected with the output shaft drive of draws the strip motor, rotating mechanism includes support plate A, support plate B, rotating frame and rotating motor, and rotating frame both sides are connected with support plate A, support plate B rotation respectively, and rotating frame one end is connected with rotating motor transmission, and the both sides of rotating frame are equipped with the grooved index plate, the utility model has realized the automation of plastic pipe spiral strip's automatic drawing, has got rid of manual operation, has improved production efficiency, has reduced production cost, has improved product pass rate, has guaranteed the unity of product size.

The utility model discloses a tube drawing and flanging all-in-one machine for a fluorine-lined liquid level meter, and relates to the field of liquid level meter processing equipment. The pipe drawing machine comprises a main body frame, a platform, a winch, a portal frame and the like, and the winch is arranged at one end of the main body frame; a straight pipe flanging electric push rod and a lifting stand column are arranged on the side portion of the platform, and a temperature sensor, an alarm and a water spray nozzle are matched to guarantee the machining quality. The device integrates pipe drawing, straight pipe flanging and branch through flanging functions, 14 universal wheels are arranged at the bottom, the device can move flexibly and adapt to workpieces of different specifications, operation is easy and convenient, and space and cost are saved.

The invention discloses a nickel-titanium memory alloy pipe as well as a preparation method and application thereof. The preparation method comprises the following steps: providing a nickel-titanium memory alloy bar, wherein the content of nickel in the bar is 54-58%; the bar is holed, and a pipe with the preset inner diameter is obtained; the pipe is drawn for multiple times through the empty drawing diameter reducing technology so as to reduce the diameter of the pipe, and after drawing is conducted every time, the area variable of the pipe does not exceed 15%; performing special-shaped treatment on the pipe subjected to diameter reduction to obtain a special-shaped pipe; and the special-shaped pipe is placed into a special-shaped forming module to be subjected to heat treatment, the memory alloy function of the special-shaped pipe is activated, so that a target pipe with the phase transition temperature ranging from-20 DEG C to 60 DEG C is obtained, the heat treatment temperature of the special-shaped forming module ranges from 500 DEG C to 530 DEG C, and the shaping duration ranges from 25 min to 35 min. The preparation method is simple in process, and the obtained target pipe can form a uniform and fine metallic luster surface, can be directly used as a structural appearance part, and has good environmental adaptability.

The invention relates to the technical field of copper pipe drawing, in particular to automatic copper pipe drawing equipment which comprises a main body plate, a drawing and bending mechanism for drawing a copper pipe and bending the radian of a die is arranged at the upper end of the main body plate, and the drawing and bending mechanism comprises two guide grooves symmetrically formed in the inner side face of the main body plate. The main body plate is slidably connected with connecting plates in the two guide grooves respectively, and the upper end of the main body plate is provided with a movable chambering mechanism for chambering the inner side surface during drawing and arc-shaped bending; the first winding device and the second winding device wind and unwind the connecting rope, so that the limiting ball is driven to reciprocate in the copper bar, the diameter of the limiting ball is the same as the designed inner diameter of the copper bar, the inner diameter is prevented from being smaller than a preset value when the copper bar is drawn, and the quality of the drawn copper bar is improved.

This invention discloses a disc-type tube drawing machine for heat dissipation tube processing, relating to the field of heat dissipation tube processing. It primarily addresses the technical problems of lacking online real-time detection in key processes of heat dissipation tube processing, leading to untimely detection of abnormal conditions, high defect rates, significant raw material waste, and low production efficiency. Specifically, it adds two independent dynamic annular diameter detection components between the bending and welding sections and after the diameter maintenance section. A wedge-type displacement conversion structure is used to convert radial dimension changes of the tube into axial displacement. Displacement sensors detect the tube's curvature and annular diameter in real time. Simultaneously, a disc-type multi-roller progressive bending structure improves welding accuracy, circumferential cutting removes weld slag, and multiple diameter maintenance passes ensure dimensional consistency. This constructs a complete "processing-detection-feedback" closed-loop production system, improving product qualification rate, production continuity, and equipment versatility. It is suitable for the automated processing of various types of heat dissipation tubes.

This utility model relates to the field of copper tube processing technology and discloses a copper tube drawing machine, including a mounting plate. The inner wall of the mounting plate is provided with a disassembly mechanism for convenient disassembly and maintenance. A circulation mechanism is fixedly connected to the bottom of the mounting plate for collecting and circulating lubricating oil. A protective mechanism is fixedly connected to the rear side of the mounting plate for protecting the internal structure. A mold is fixedly connected to the top surface of the mounting plate near the edge. The disassembly mechanism includes a guide groove located on the inner wall of the mounting plate. Multiple sliding grooves are formed on the top of the mounting plate near the edge. In this utility model, by pulling the second limiting plate, the clamping rod is pulled to compress the spring through the first limiting plate and move away from the inner wall of the clamping groove, achieving the purpose of rapid disassembly for maintenance, accelerating maintenance efficiency, and reducing maintenance costs.

The utility model discloses a continuous borosilicate glass ampoule bottle tube drawing forming device which comprises a shell frame, a chain scraper conveyor is rotationally connected to the inner side of the shell frame, a socket is arranged on the outer wall of the chain scraper conveyor, an ampoule bottle body is inserted into the socket, a first fixing frame is arranged at one end of the top of the shell frame, and a fixing plate is connected to the bottom of the first fixing frame in a lifting mode. A plurality of groups of mounting frames are arranged at one end of the fixing plate, second motors are mounted at the tops of the mounting frames, clamping drawing heads are rotationally connected to the inner sides of the mounting frames, through holes are formed in the inner sides of the clamping drawing heads, a compressed air pump is mounted at the top of the first fixing frame, an air outlet of the compressed air pump is connected with an air supply pipe, and one end of the air supply pipe is connected with the fixing plate; and the fixing plate is communicated with the clamping drawing head through a hose. According to the device, the phenomenon that ampoule bottle body materials remain on the inner side of the clamping and drawing head can be avoided, so that it is guaranteed that the clamping and drawing head can make normal contact with ampoule bottle bodies, normal operation of equipment is guaranteed, and the sealing efficiency and the working continuity are improved.

The application discloses a paper bag cylinder pulling-off device, which comprises a device main body, a cam, a swing arm, a swing arm shaft, a first connecting rod and a swing shaft are arranged on the outer side of the device main body, the swing arm is connected to the cam, the swing arm shaft is arranged on the swing arm, the first connecting rod is connected to the swing arm and the swing shaft, a fourth belt, a driven roller, a second belt and a first belt are arranged in the device main body, a cylinder is arranged on the inner side of the upper end of the device main body, the outer side of the fourth belt is connected to a third connecting rod and a fourth connecting rod, the inner side of the driven roller is provided with a fourth clamping roller and a driving roller. The paper bag cylinder pulling-off device has the advantages that the cutting knife does not need to be frequently adjusted, the paper bag cylinder which is pulled tight is convenient for cutting, the front end of the paper bag cylinder has entered the belt when the previous bag cylinder is pulled off, the continuity of paper falling is ensured, the production efficiency is improved, and the purpose of solving the cutting knife adjustment difficulty and improving the production efficiency and the product yield is achieved.

The present invention discloses a combined die for drawing aluminum alloy thin-walled tubes and a drawing process, which relates to the technical field of aluminum alloy drawing processing. The combined die for drawing aluminum alloy thin-walled tubes is used to draw the thin wall of an aluminum alloy tube with an outer diameter of B mm and a wall thickness of 0.5 ± 0.05 mm into an aluminum alloy with an outer diameter of A mm and a wall thickness of 0.3 ± 0.05 mm. The combined die for drawing aluminum alloy thin-walled tubes and the drawing process optimize and improve the structures of the inner and outer drawing dies, conduct a combined matching design of the inner and outer dies, divide the deformation amount of the secondary drawing, process it in sections, and adopt a combined drawing method to perform a one-time drawing forming process, so as to realize the production mode of one-time forming of thin-walled tube drawing, which can effectively improve the production efficiency and save the production and processing costs and the corresponding consumption losses of resources and energy.

The utility model provides a traction structure for stretching a copper pipe. Belongs to the field of copper pipe processing. According to the technical key points, the device comprises a driving mechanism, the driving mechanism comprises two supporting frames which are symmetrically arranged, rotating shafts are symmetrically and rotationally connected between the two supporting frames, a motor is fixedly connected to one side of one supporting frame, and the output end of the motor is fixedly connected with one rotating shaft; chain wheels are symmetrically and fixedly connected to the outer sides of the two sets of rotating shafts, chains are connected between the two sets of chain wheels on the same side in a meshed mode, and a plurality of cross beams are evenly and fixedly connected between the two sets of chains; the fixing mechanism comprises guide plates which are symmetrically and fixedly connected to the side, away from the rotating shaft, of the cross beam, a guide rod slidably penetrates through the interior of each guide plate, and clamping blocks are fixedly connected to the opposite sides of the guide rods on the two sides; the utility model aims to provide a traction structure for stretching a copper pipe. The traction device is used for improving the copper pipe traction efficiency.

This invention relates to the field of copper tube drawing technology, specifically to a production equipment for drawing copper tubes. The equipment includes an internal oiling mechanism, a straightening mechanism, a pre-forming mechanism, a drawing die, and a cutting mechanism. The drawing die includes an outer die and a moving mandrel. The outer die includes a die sleeve and a die core. An axial through hole is formed on the die sleeve, and the die core is embedded in the through hole. The die core has a tapered mandrel hole that communicates with the through hole. The cross-section of the mandrel hole is cross-shaped and is used to mate with the moving mandrel. The moving mandrel includes a large-diameter section, a small-diameter section, and a transition section. The transition section smoothly connects the large-diameter section and the small-diameter section. The cross-sectional shape of the moving mandrel is the same as the cross-sectional shape of the mandrel hole. This invention solves the problem of low production efficiency in existing drawing methods.

The utility model provides a heat-resistant glass kiln tube drawing production device, which belongs to the field of glass production, and comprises a cutting assembly, the cutting assembly comprises a V-shaped plate, an annular plate, two sliding blocks and two cutting knives, the V-shaped plate penetrates through a supporting plate and is arranged in a sliding manner, the annular plate is fixedly arranged on the V-shaped plate, and the two sliding blocks are arranged on the V-shaped plate; arc-shaped guide rods are fixedly arranged at the two ends of one side of the annular plate correspondingly, and the two arc-shaped guide rods penetrate through the two sliding blocks correspondingly and are arranged in a sliding mode. The cutting assembly and the driving assembly are arranged, automatic pipe cutting operation is achieved, work efficiency is improved, and practicability is improved; a limiting assembly is further arranged, so that the flatness of a notch is ensured, the size error is avoided, and the stability of cutting work is improved; and a threaded rod is further arranged, so that the cutting requirements of glass tubes with different lengths can be met, and the adaptability is improved.

The utility model discloses a cold-rolled tube drawing head forming device, which belongs to the technical field of cold-rolled tubes and comprises a processing box, a first die arranged in the processing box, a movable second die arranged at one end of the first die, and a transverse moving block arranged at the bottom of the second die. And a moving mechanism used for moving the transverse moving block is arranged at the bottom end in the processing box, so that after the forming process, the first mold and the second mold can be easily separated, internal materials can be conveniently discharged, when the second mold and the first mold are assembled and the rectangular limiting block can be located in the U-shaped limiting block, an external pressurizing system is not needed, and the working efficiency is improved. The forming quality of materials between the first mold and the second mold can be guaranteed under the condition that external pressurization is not increased, and therefore the energy consumption and the operation cost of equipment are reduced.

The invention provides a tube drawing bench which is used for drawing out a sleeve and comprises a clamping seat, a lifting oil cylinder A, a lifting oil cylinder B, a lifting oil cylinder C, a lifting oil cylinder D, a padding object, a hydraulic nitrogen hammer A, a hydraulic nitrogen hammer B and a positioning device. A lifting oil cylinder A, a lifting oil cylinder B, a lifting oil cylinder C and a lifting oil cylinder D are symmetrically arranged on the clamping seat in four directions; the lower ends of the lifting oil cylinder A, the lifting oil cylinder B, the lifting oil cylinder C and the lifting oil cylinder D are connected with a construction site backing object; a hydraulic nitrogen hammer A and a hydraulic nitrogen hammer B are symmetrically arranged on the lower side of the clamping seat; during working, the lifting oil cylinder D, the lifting oil cylinder A, the lifting oil cylinder B, the lifting oil cylinder C and the lifting oil cylinder D of the clamping seat lift the sleeve upwards, so that the sleeve is in a tensioned state, the hydraulic nitrogen hammer A and the hydraulic nitrogen hammer B hit the lower surface of the clamping seat at set time intervals, and therefore the sleeve is in a state that the sleeve is pulled upwards and vibrates up and down at the same time.

The utility model relates to the technical field of magnesium alloy processing, and provides a heatable magnesium alloy tube drawing machine which comprises a tube drawing machine body, a tube drawing die is fixedly installed on the left side of the top of the tube drawing machine body, a sleeve is fixedly installed on the left side of the tube drawing machine body, and a plurality of heating wires are fixedly embedded in the sleeve. A water tank is fixedly embedded in the left side of the interior of the tube drawing machine body, a filter plate is fixedly embedded in the water tank, a water inlet pipeline is fixedly installed in the center of the bottom of the water tank, and a storage box is fixedly installed at the bottom of the water inlet pipeline. Cooling liquid can be sprayed out through the spray head, the temperature of the magnesium alloy pipe can be rapidly reduced, material performance reduction caused by overheating is avoided, meanwhile, the cooling liquid passes through a circulating system of the filter plate and the water tank, resource waste can be effectively reduced, and the production cost is reduced.

The present invention discloses a light weight ball bearing with enhanced strength and cooling effect. The weight of the said ball bearing is reduced by drawing curved profiling / corrugation over the inner surface (201) of inner ring (200) and outer surface (101) of the outer ring (102) through bar / tube drawing process wherein a steel bar is converted into a hollow tube and subsequently cold drawn through a profiled die. The said technical modifications reduce the raw material / weight of outer ring by up to 22-24% and reduce the raw material / weight of the inner ring by up to 18-20%. The said profiled ball bearing has 10% increase in fatigue strength, 40% higher push / pull load capacity and 7% improvement in heat transfer efficiency, thus the said profiling enhances the strength and cooling effect of ball bearing along with weight reduction of the same.

The utility model provides quartz tube induction furnace tube drawing equipment and a graphite heating body thereof. The graphite heating body is of a cylindrical structure, a strip-shaped notch is formed in the side wall of the graphite heating body, the notch penetrates through the side wall of the graphite heating body, the width of the notch is 0.5 mm-1 mm, and the height of the notch is 50 mm-85 mm. According to the graphite heating body of the quartz tube induction furnace tube drawing equipment, the strip-shaped notches are formed in the side wall of the graphite heating body, so that vortex radiant heat of an induction coil is cut off, the precision of drawing a quartz liner tube can be improved, and distortion of ovality and curvature of the quartz liner tube can be avoided.

The invention relates to the technical field of drawing machining, in particular to an oil injection structure for copper pipe drawing deformation machining, which comprises a barrel I for a copper pipe to pass through, a spiral groove formed in the inner wall of the barrel I, and a plurality of sliding blocks arranged in the spiral groove in a sliding manner, each sliding block is provided with a telescopic rod capable of stretching out and drawing back in the radial direction of the first barrel, and the end of each telescopic rod is provided with an oil chamber. A plurality of oil chambers are guided and limited through a spiral groove, a plurality of sliding blocks, a plurality of telescopic rods and a plurality of hinges, so that the oil chambers can be spirally arranged, and when the telescopic rods stretch out and draw back, the radius of a spiral where the oil chambers are located changes, and therefore the purpose of adjusting the distance between the oil chambers and one axis of a barrel is achieved; and the multiple oil chambers move synchronously, so that it is guaranteed that the distances between the multiple oil chambers and the outer wall of the copper pipe are consistent, nozzles in the oil chambers can conveniently conduct oil spraying treatment on the copper pipes with different diameters, and the applicability of the structure is improved.

The invention discloses an automatic pipe grabbing device for vertical upright production of an assembled hollow wallboard, which comprises a case, a driving transmission shaft is vertically arranged in the middle of the case, the top end of the driving transmission shaft is connected with a driving motor, the bottom end of the driving transmission shaft is connected with a circular pipe grabbing disc, two L-shaped pipe grabbing hooks are fixed on the circular pipe grabbing disc, and the L-shaped pipe grabbing hooks are connected with the driving motor. The pipe grabbing hooks are L-shaped hooks, and the orientations of the transverse hook heads of the two L-shaped pipe grabbing hooks are opposite. According to the invention, during tube drawing of the assembled hollow wallboard in vertical upright molding production, manual work or manual assistance is not needed, the bonding surface of the pore-forming circular steel tube and the wallboard hollow hole concrete can be automatically loosened, and the tube drawing efficiency is high.

The utility model discloses a long conical quartz capillary tube drawing device which comprises a rod feeding assembly, a heating assembly, a traction assembly, a diameter measuring assembly and a cutting assembly, the conveying end of the rod feeding assembly directly faces one opening of the heating assembly, the traction assembly is arranged at the position of the other opening of the heating assembly, and the diameter measuring assembly is arranged at the position of the other opening of the heating assembly. The diameter measuring assembly and the cutting assembly are sequentially arranged at an outlet of the traction assembly, the quartz tube is driven by the traction assembly to move forwards, due to the fact that the quartz tube is in a heated state, the quartz tube is stretched by traction force to form a cone shape, and the stretched cone-shaped tube can be cooled and shaped after being separated from the heating assembly. And the subsequent quartz tube is driven to continuously stretch. The long conical quartz capillary tube drawing device provided by the utility model has the effect of directly drawing a quartz mother tube to form a conical capillary tube.

The invention relates to a small-caliber centrifugal nodular cast iron pipe production system and a using method thereof, and the small-caliber centrifugal nodular cast iron pipe production system comprises a centrifugal casting system which comprises a pipe die which is a die for forming a nodular cast iron pipe by rotating and centrifuging molten iron to the inner wall and solidifying the molten iron; a driven riding wheel; a driving riding wheel; the more than two pipe dies are arranged side by side, and every two adjacent pipe dies are driven by the same group of driving riding wheels to rotate; the tube drawing system comprises a tube drawing wrench; the tube drawing system further comprises a floating assembly, and the floating assembly comprises a base and a tube drawing head, a slide rail; and the fixing seat is fixedly connected with the pipe drawing pliers and is in sliding connection with the sliding rail, so that the other end, extending into the nodular cast iron pipe, of the pipe drawing pliers obtains the degree of freedom of transverse left-right swing. Automatic correction is achieved when the axis of the formed nodular cast iron pipe deviates, and the pipe drawing success rate is increased.

The utility model discloses a vacuum cup tube drawing machine which comprises a bottom plate, a tube drawing machine body is fixedly installed on the top of the bottom plate, a protection assembly is fixedly installed on the top of the bottom plate, the protection assembly comprises a fixing frame and a motor, the fixing frame is fixedly installed on the top of the bottom plate, and the motor is fixedly installed on the top of the fixing frame. The output end of the motor is fixedly connected with a threaded rod, the side wall of the threaded rod is connected with a first movable plate through threads, and a protection plate is fixedly installed on one side of the first movable plate. According to the tube drawing machine for the vacuum cup, through the arranged protection assembly, an operator can be protected in the tube drawing process, so that the operator is prevented from being hurt by metal scraps due to the fact that a metal tube is broken, the operator works more safely, the injury situation is reduced, the operator can be far away from the working position, and the working efficiency is improved. Therefore, the arms of the worker are prevented from being stirred in, and the using effect is better.

The invention discloses a microcapillary drawing forming calculation method and system based on finite element analysis, and relates to the technical field of metal processing. Comprising the following steps: acquiring microcapillary parameters and drawing die parameters, and establishing a geometric model based on the microcapillary parameters and a drawing die; selecting a constitutive model suitable for material deformation to determine material attributes, and dividing finite element grids in combination with a geometric model; setting constraint conditions for the grids, determining grid data, and determining fatigue points based on the grid data; determining upper and lower limits of a fatigue point load based on the fatigue point and the grid data corresponding to the fatigue point; and determining the drawing force based on the fatigue point load upper and lower limits. According to the method, high-precision prediction of the fatigue point in the microcapillary drawing process is achieved, the cost can be reduced, it is guaranteed that the forming quality is controllable, and the rate of finished products is increased.

The present invention discloses a method for processing a hollow ring blank, comprising the following steps: S1, tube drawing: bending a straight sheet into a straight tube; S2, straight tube welding: welding the weld seam of the straight tube and polishing the weld seam; S3, winding: winding the straight tube into a spiral tube; S4, cutting: cutting the spiral tube along the center line of the spiral tube and the plane where the end thereof is located to obtain a plurality of open ring tubes; S5, ring tube welding: welding a single open ring tube into a closed-loop circular tube and polishing the weld seam; S6, molding: placing the closed-loop circular tube in a molding die for molding to obtain a ring blank. The process of the present invention is simple and has high production efficiency. It only takes ten minutes from cutting the straight sheet of precious metal to molding the ring blank, which greatly shortens the processing time compared to the existing electroplating process and wax mold process for manufacturing hollow rings.

The invention relates to the field of pipe drawing machines, and discloses a hydraulic jam-releasing pipe drawing machine which comprises a pipe drawing main body unit, the pipe drawing main body unit comprises a fixed base, a first adaptive clamping part and a hydraulic cylinder, the first adaptive clamping part can clamp an underground pipe column, and the movable end of the hydraulic cylinder is connected with the first adaptive clamping part; the first adaptive clamping part comprises a limiting frame, an adaptive adjusting extrusion plate and a first telescopic driving rod, the underground pipe column is located in the limiting frame of the first adaptive clamping part, the adaptive adjusting extrusion plate is pushed by utilizing the first telescopic driving rod, so that the adaptive adjusting extrusion plate rotates relative to the limiting frame, and the slip petals are in contact with the outer wall of the underground pipe column; the multiple sets of adaptive adjusting extrusion plates and the slip petals are matched to clamp an underground pipe column, the hydraulic cylinder acts to drive the first adaptive clamping part to move, and therefore the underground pipe column is lifted upwards. The clamping device is suitable for clamping underground pipe columns with different pipe diameters, and the clamping stability of the underground pipe columns is guaranteed.

The invention belongs to the technical field of quartz tube preparation, and relates to a method for preparing a high-purity quartz tube by a continuous melting method and a preparation device. Loading and vacuumizing: forming a stable vacuum degree gradient from the deep layer of the quartz sand to the surface layer of the quartz sand; heating and melting the quartz sand by adopting a radio frequency plasma torch, and keeping the temperature gradient from the quartz sand surface layer to the quartz sand deep layer to be 1800 DEG C to 1300 DEG C of the quartz sand surface layer; injecting inert gas into the deep melting area of the quartz sand, and oscillating vacuum; drawing and forming the molten glass liquid from the deep melting area of the quartz sand; gradient vacuum and plasma flame heating are cooperated, vacuum gradient drives bubbles to directionally migrate, and the bubble density can be effectively reduced while pollution is reduced through efficient plasma heating; the integration of raw material feeding, melting and tube drawing can be realized, and the yield is improved; continuous and efficient production of quartz tubes is achieved, the production period is greatly shortened, and the production efficiency is improved.

The present invention relates to the technical field of copper tube drawing, and discloses a copper tube drawing device, comprising a workbench, a first motor being fixedly mounted on the outside of the workbench, and an output end of the first motor being interconnected with a conveyor pulley via a rotating shaft, a fixed frame being fixedly mounted on the left side of the workbench, and a drawing plate being fixedly mounted on the fixed frame via screws, and two side panels being fixedly mounted on the rear side of the workbench. The copper tube drawing device can ensure the stable movement of the movable plate through the conveyor pulley, the positioning wheel and the walking track, thereby achieving the drawing of the copper tube, and when the movable plate moves, the guide plate can be linked to rotate to prevent the guide plate from affecting the normal movement of the movable plate, and the guide plate can be used to support and guide the drawn copper tube so that the copper tube falls into a placement box for detection, and the surface of the copper tube can be fully detected by driving the copper tube to rotate, and the visual detection device can be linked to move left and right while the copper tube rotates, thereby ensuring the detection effect of the copper tube.

This utility model discloses a composite heat exchange tube and its production equipment, including: a substrate pretreatment device, an inner and outer tube insertion device, a filler layer coating device, and a composite tube drawing device. The inner and outer tube insertion device inserts the inner tube into the outer tube. The filler layer coating device is located in the middle of the inner and outer tube insertion device. During the insertion process, the filler layer coating device coats the outer surface of the inner tube. The outlet of the inner and outer tube insertion device is equipped with a composite tube drawing device for drawing the inserted heat exchange tube. The composite heat exchange tube proposed in this utility model solves the problems of high cost, short lifespan, and easy corrosion of existing stainless steel heat exchange tubes through innovative structural design and process optimization.

The utility model provides a slideway protection structure of a tube drawing device, which is characterized in that a slideway is connected with an output port of the tube drawing device, the slideway protection structure comprises an inclined bottom plate and vertical plates arranged on two sides of the bottom plate, and the slideway protection structure comprises a protection shell used for covering the upper part of an outlet of the slideway, the connecting plate is arranged on vertical plates on the two sides, the top end of the connecting plate is higher than the vertical plates, and the two sides of the protective plate are connected with the top end of the connecting plate. By arranging the protective shell, the outlet of the slide way can be covered, so that the empty bobbins are effectively prevented from flying out of the slide way in the sliding process and cannot normally enter a bobbin trolley below, in addition, by arranging the blocking plate with the top end rotationally arranged on the protective shell, the empty bobbins sliding out of the slide way can be blocked, and the empty bobbins are prevented from falling off. The empty bobbins are prevented from continuously falling in an accelerated mode, the speed of the empty bobbins sliding into the bobbin trolley is reduced, and therefore the situation that the empty bobbins are damaged due to the fact that impact force is large when the empty bobbins slide into the bobbin trolley is avoided.