241 results about "Tube forming" patented technology

The invention relates to a special-shaped pipe forming device, and belongs to the technical field of metal pipe machining.The special-shaped pipe forming device comprises a workbench, a rotating motor, a sliding rail, a sliding base, a fixing base, a threaded shaft, two clamping mechanisms and an expansion mechanism. And the expansion mechanism can be expanded outwards to change the shape of the circular tube through the forward-rotating thread section and the backward-rotating thread section of the thread shaft. The special-shaped pipe forming device has multiple working modes and is rich in function and simple in structure, the technical requirement is lowered, when the expansion mechanism expands outwards through the forward-rotating thread section and the reverse-rotating thread section of the threaded shaft, one end of the threaded shaft is suspended, a round pipe can be conveniently installed, and the formed special-shaped pipe can be conveniently taken down; and the working efficiency is effectively improved.

The utility model relates to the technical field of die equipment, in particular to a packing pipe forming die and a packing pipe, the packing pipe forming die comprises a fixed die, a movable die and a bottom die, the fixed die and the movable die are respectively provided with a forming cavity, the forming cavities are respectively provided with a reinforcing rib cavity, and the reinforcing rib cavities are arranged on the bottom die. The fixed mold is provided with an injection molding runner for injection molding into the fixed mold, and the bottom mold is connected with external lifting equipment and is used for being connected with the bottom of the fixed mold and the bottom of the movable mold, so that the bottom of the forming cavity is blocked. The movable mold is driven by external driving equipment to be assembled with the fixed mold, the bottom mold is in butt joint with the bottom of the fixed mold and the bottom of the movable mold under the action of external lifting equipment, so that a forming cavity of the fixed mold and a forming cavity of the movable mold are closed to form a closed injection molding cavity, and injection molding is conducted in the forming cavity through an injection molding runner on the fixed mold. Therefore, the packaging pipe with a tubular structure and a reinforcing rib cavity shape is formed, the packaging pipe is provided with reinforcing ribs, and the structural strength of the packaging pipe is improved.

The invention discloses a real-time closed-loop regulation and control method and system for the forming process of a stainless steel welded pipe. The method comprises the steps that multi-source heterogeneous data including a pipe shape image, a laser ranging sequence, temperature field distribution and roller pressure time sequence data in the forming process are synchronously collected through a distributed multi-source sensor network; performing space-time alignment and feature level fusion on the multi-source heterogeneous data, and constructing a multi-dimensional dynamic digital twinborn body in the forming process; on the basis of the multi-dimensional dynamic digital twins, an online rolling prediction model is adopted to deduce the development trend of weld forming quality and pipe diameter size deviation in real time; and according to the development trend, a cooperative regulation and control instruction set of the roller gap and the welding power is generated through a self-adaptive fuzzy inference system. By means of the embodiment of the invention, multivariable look-ahead perception and intelligent collaborative closed-loop regulation and control of technological parameters in the stainless steel welded pipe forming process can be achieved, and the stability and consistency of the forming quality are improved.

The utility model is applicable to the technical field of dies, and provides a grinding pipe forming die, which comprises a die main body, a fixing device and a hole shaping block, and an outer die sleeve and an inner die sleeve are respectively and fixedly connected above a base; the lower part of the upper cover body is fixedly connected with a compaction pipe matched with the forming cavity; a first supporting block is in sliding connection with the interior of the first through hole in a matched manner; the inner side face of the first supporting block is a curved face matched with the inner side face of the outer die sleeve. The fixing frame is fixedly connected with the outer die sleeve; the fixing frame is fixedly connected with an adjusting nut; the adjusting bolt is rotationally connected with the first supporting block; the adjusting bolt is matched with the adjusting nut; a first supporting hole is formed in the outer side of the hole shaping block; and the first supporting hole is matched with the first supporting block, so that the grinding pipe with two discharging structures can be produced, and a specified discharging hole diameter can be formed in a blank forming stage of the grinding pipe by replacing the hole shaping block.

The invention discloses a novel composite pipe forming process, and relates to the technical field of metal material machining, and a composite pipe comprises an inner pipe made of a first metal material; the outer pipe is made of a second metal material, and the second metal material is different from the first metal material; the composite interface agent layer is arranged between the inner pipe and the outer pipe and is formed by compounding high-molecular anaerobic adhesive and high-temperature brazing filler metal; the composite interface agent layer is evenly distributed between the inner pipe and the outer pipe, the thickness of the composite interface agent layer ranges from 0.01 mm to 0.5 mm, and tight connection of the inner pipe and the outer pipe is achieved through a specific manufacturing process. By adopting the high-molecular anaerobic adhesive and the high-temperature brazing material as a composite interface agent and combining an innovative manufacturing process and a drawing process, the connecting strength and the high-temperature resistance between the inner pipe and the outer pipe are remarkably improved, the manufacturing cost is reduced, the production process is simplified, and the high-temperature-resistant composite pipe can be widely applied to various fields and replace part of traditional welding processes; good practicability and market potential are realized.

This application relates to an automatic processing device for Bourdon tubes, comprising a base, a forming column fixed to the base, a bending mechanism for deforming a straight tube, and a cutting mechanism for cutting the straight tube. The forming column is further provided with a lifting mechanism for moving the Bourdon tube upwards. The lifting mechanism includes several lifting blocks slidably disposed on the outer wall of the forming column and a sliding rod coaxially passing through the forming column. The upper end of each lifting block abuts against the lower end of the Bourdon tube, and one end of each lifting block extends into the forming column and is fixed to the sliding rod. The upper end of the sliding rod is positioned above the upper surface of the forming column. After the bending mechanism shapes the Bourdon tube and the cutting mechanism separates the Bourdon tube from the straight tube, the lifting blocks apply force to the Bourdon tube, thereby moving it upwards to above the forming column, whereby the Bourdon tube can be directly grasped and unloaded.

The utility model discloses a roll paper tube machine which comprises a paper tube forming mechanism and an unwinding mechanism used for unwinding first roll paper and second roll paper respectively, and the first roll paper and the second roll paper are wound on a winding shaft of the paper tube forming mechanism and formed into a paper tube. A cutting device used for cutting the formed paper tubes is arranged on the discharging side of the paper tube forming mechanism. A gluing mechanism used for completing glue coating on the first roll paper and a width limiting device used for limiting the glue coating width are sequentially arranged along the unwinding path of the first roll paper. According to the structure, the coating width of glue is limited through the width limiting device, the use amount of the glue is reduced, the cost is reduced, and convenience is brought to subsequent winding and tearing of the composite paper tube; particularly, a plurality of notches are formed in the scraper at intervals, a plurality of adhesive coating tapes are defined through the notches, uniform and stable pasting is ensured, the structure is high in practicability, and market requirements are met.

The present application relates to copper pipe processing technical field, specifically to a kind of copper pipe red punch hot forging processing equipment, including feeding module, feeding module and processing module, the feeding module includes L-shaped mounting plate, with the top connection of the L-shaped mounting plate intermediate frequency furnace, with the top connection of the intermediate frequency furnace mechanical hand, install in the front side of the L-shaped mounting plate transverse plate, with the top connection of the transverse plate first U-shaped plate.The copper pipe heated in the intermediate frequency furnace in the present application is caught after being caught by the receiving plate, will be by cylinder cooperation limit board, copper pipe is continuously pressed into the material frame, then this period, the articulated plate in rotation makes T-shaped slide plate translation, then T-shaped slide plate moves with push rod, push rod is pressed into mould with the copper pipe in the material frame, under the action of pressure, copper pipe is formed in mould, copper pipe forming step is smooth, silky, the forming time of single copper pipe can be controlled in 30 seconds, effectively improve copper pipe processing efficiency.

A shock-absorbing device may comprise: a block configured to have a vertically through-hole and a first flow path and a second flow path; a first tube configured to extend vertically as it passes through the through-hole and having a penetrating portion that passes through both inner and outer circumferential surfaces on a portion extending below the block; a piston assembly configured to perform a compression stroke or a compression stroke, comprising a piston valve arranged in the first tube, the piston valve dividing the first tube into a compression chamber on an upper side and a compression chamber on a lower side, and a piston rod coupled to the piston valve;a second tube arranged to surround a portion of the first tube extending below the block, the second tube forming a first intermediate chamber connecting the pressure chamber to the first flow path between the second tube and the first tube; and a third tube arranged to surround a portion of the first tube extending above the block, the third tube forming a second intermediate chamber connecting the tension chamber to the second flow path between the third tube and the first tube.

The application discloses a quick demolding device for pipe jacking production and relates to pipe making and forming production equipment of a concrete structure pipeline, which comprises a demolding workbench and a mold. The demolding workbench is sequentially provided with a demolding position for an outer mold and a demolding position for an inner mold from left to right. The mold comprises the outer mold and the inner mold. A rack for conveying the mold is arranged above the demolding workbench. The rack is detachably connected with the top of the inner mold. The demolding position for the outer mold is provided with an outer mold demolding rotary platform. An oiling assembly is arranged in the outer mold demolding rotary platform. The demolding position for the inner mold is provided with an inner mold demolding rotary platform. A clamping and conveying mechanism is installed at a position corresponding to the demolding position for the inner mold on the right side of the demolding workbench. The demolding of the outer mold and the cleaning and oiling of the outer mold are continuously carried out, thereby reducing the operation and the operation time. Moreover, the concrete pipe after the demolding of the outer mold will not be unstable under the support of the inner mold. The demolding and the conveying are simultaneously carried out, thereby improving the efficiency.

This invention relates to the field of cable aluminum foil coil processing technology, and particularly to an integrated equipment and method for forming and coating cable aluminum foil coils based on a conical mold. The equipment includes a transport frame and coating wheels. A mold range adjustment mechanism is provided on the outer side of the transport frame, and a position adjustment mechanism is provided on the outer side of the conical mold range adjustment mechanism. The conical mold range adjustment mechanism includes a rotating column, a stabilizing plate fixedly connected to the top of the rotating column, and a conical mold piece on the top of the stabilizing plate. A fixing rod is fixedly connected inside the rotating column, and a movable tube is fixedly connected to the outer side of the fixing rod. In this invention, by adjusting the speed of a primary motor to change the range between the conical mold pieces, and in conjunction with the synergistic effect of the position adjustment mechanism, precise adjustment of the mold range and position can be quickly completed without the need for separate forming and coating processes, reducing equipment space requirements and process connection time.

This invention relates to the manufacturing process and equipment for U-shaped tubes used in nuclear power steam emitters, belonging to the field of U-shaped tube manufacturing technology. It addresses the challenges of existing U-shaped tube forming processes, requiring precision molding and ensuring corrosion resistance and high-temperature performance during use. The invention utilizes a U-shaped angle-fixed mold, allowing for the detachable shaping block assembly through the coordinated arrangement of the rotating frame, fixed clamp, and clamping adjustment components. The pressure forming mechanism and side support mechanism work together to allow for replacement of the side support mechanism by removing replaceable half-rings before U-shaped tube extrusion molding. During U-shaped tube extrusion molding, the tube support gradually changes its angle as the pressing assembly rises and falls. Simultaneously, the highly conforming tube support prevents deformation of both ends of the U-shaped tube. The tube body is made of heat-resistant steel with good corrosion resistance and high-temperature performance. This invention changes the U-shaped tube injection molding production process to a method where the tube is first manufactured and then mechanically bent.

The invention relates to the field of metal material machining treatment, in particular to a square and rectangular pipe R-angle forming device and method.The square and rectangular pipe R-angle forming device comprises a rack, a round pipe is placed on the rack, and a guiding assembly used for guiding the round pipe to deform is arranged on the rack in the pipe conveying direction; the metal round pipe is preheated and heated through the guide assembly, then the heated section of the pipe is driven to slide and pass through the rack, the heated round pipe is compressed and deformed by matching of different rollers on the rack in the process of passing through the rack, the round pipe is guided to be gradually formed into the required square and rectangular pipe shape, and after the round pipe is compressed into a square and rectangular shape, the round pipe is cut into a square and rectangular shape. The guiding assembly is gradually separated from the pipe face of the primarily-formed square and rectangular pipe and abuts against the corners of the square and rectangular pipe, the effect of further local temperature rising of the four corners of the primarily-formed square and rectangular pipe is achieved, forming of R corners of the corners of the square and rectangular pipe is facilitated, the forming quality of the square and rectangular pipe is improved, and meanwhile the needed process equipment cost and the operation difficulty are reduced.

This invention discloses a polyurethane composite pipe and its preparation method, including the following steps: inner tube forming, composite co-extrusion, injection foaming, and cooling and shaping. This achieves one-stop continuous production of the polyurethane composite pipe. The inner tube anchoring ribs are formed in one step, eliminating the need for traditional multi-processing and material transfer. The composite co-extrusion and synchronous foaming within the mold combine to ensure a tight bond between the insulation layer and the inner tube anchoring ribs, and a thermal fusion bond with the outer protective pipe, completely eliminating interlayer separation, reducing the risk of interlayer detachment, and ensuring both insulation performance and structural protection. The polyurethane composite pipe includes an inner tube, a polyurethane insulation layer covering the inner tube, and an outer protective pipe covering the polyurethane insulation layer. Anchoring ribs for enhancing interlayer bonding are provided on the sidewall of the inner tube. Four or more anchoring ribs are provided along the outer sidewall of the inner tube, reducing the risk of interlayer detachment, ensuring both insulation performance and structural protection, and significantly enhancing reliability and lifespan.

The utility model relates to the technical field of plastic forming molds, and discloses a novel yellow-green pipe forming machine head which comprises a connecting sleeve, a sprue spreader support body, a machine head body, a green shunting inner core, a core mold, a mouth mold, a mouth mold pressing cover, a yellow feeding port, a green feeding port, a yellow shunting runner, a green shunting runner, a converging runner and a forming runner. The connecting sleeve is connected with the sprue spreader support body through a first fastening screw, the machine head body is connected with the sprue spreader support body through a second fastening screw, the mouth mold and the mouth mold pressing cover are connected with the machine head body through a third fastening screw, and the connecting sleeve, the sprue spreader support body and the core mold are sequentially connected. According to the utility model, under the cooperation of structures such as the sprue spreader bracket body, the connecting sleeve, the green shunting inner core and the converging runner, yellow and green raw materials are fully shunted and then converged during high-speed extrusion, the fusion time is prolonged, and the appearance quality of a product is improved.

The invention discloses an end socket half-pipe forming machine, and relates to the technical field of end socket half-pipe machining, the end socket half-pipe forming machine comprises a machining table, the top of the machining table is fixedly connected with a guide frame, and a half-pipe machining part is arranged above the machining table; the layered pressing device is arranged at the top of the machining table and used for conducting graded extrusion on the half-pipe machined part, by arranging the layered pressing device, the bending radians of the two sides of the half-pipe machined part are decomposed into three times through graded pressing, and machining errors caused by one-time large-radian bending are avoided; meanwhile, if the half-pipe machined part is bent to the final radian at a time, the material can bear large instantaneous stress, cracks or wrinkles or excessive plastic deformation is prone to occurring, the bending radian is gradually increased through multi-time pressing, the internal stress of the material can be slowly released, damage caused by stress concentration is reduced, and the service life of the material is prolonged. And the mechanical properties (such as strength and toughness) of a semi-pipe machined part are not damaged, so that the forming rate of the end socket semi-pipe is improved.

The invention relates to the technical field of adhesives, in particular to a paper tube adhesive and a preparation method and application thereof. The paper tube adhesive is prepared from the following raw materials in parts by weight: 80-100 parts of an adhesive component A, 20-25 parts of an adhesive component B, 0-5 parts of an adhesive component C and 50-65 parts of water. The paper tube adhesive prepared by the invention is relatively good in water solubility and safe to use, and does not cause any environmental pollution; the stickiness is high, bonding can be carried out at the moment of paper contact, and the forming quality of paper tubes is guaranteed; the drying speed is high, the paper tube is rapidly dried within one minute after being formed, the paper tube forming stiffness requirement is met, the production efficiency is improved, and the waiting time is shortened; and the production speed can be improved, the device can be suitable for different machine types, and the production speed is not lower than 60 m / min.

The utility model discloses a metal stamping plate of an inner pipe of a petroleum sand prevention filter sieve tube, which comprises a stamping plate body, the stamping plate body is rolled and welded in the width direction to form the inner pipe, and stamping convex hulls and stamping bridges are convexly arranged on the stamping plate body by adopting stamping forming. The stamping convex hulls are arranged on the stamping plate body in an oval structure mode, the stamping convex hulls are arranged in the middle of the stamping plate body in the width direction, the multiple stamping convex hulls are distributed in the length direction of the stamping plate body at equal intervals, and the multiple stamping bridges are arranged on the two sides of the stamping plate body in the width direction. The stamping bridges are distributed in an array at equal intervals, and any stamping bridge forms a bridge hole in the stamping plate body. Due to the number and arrangement of the bridge holes, the punching time and the material loss are reduced, the cost is reduced, and a good filtering effect is provided; the shape and the stamping depth of the bridge opening reduce the probability that the bridge opening is blocked; and the inner pipe is spirally welded during forming, so that the pressure grade of the inner pipe is improved.

The application discloses a dust-sticking paper roll production device and a production method. The device comprises a paper tube forming mechanism, a dust-sticking paper winding mechanism, a cutting mechanism and a control device. The paper tube forming mechanism is used to drive the paper tube to move linearly along the axis of the paper tube forming shaft. The dust-sticking paper winding mechanism is used to wind the dust-sticking paper on the paper tube to form a dust-sticking paper roll semi-product. The cutting mechanism moves in the same direction as the paper tube. The cutting mechanism is connected with a driving mechanism. The driving mechanism is connected with the control device to control the movement speed of the cutting mechanism to be the same as the movement speed of the dust-sticking paper roll semi-product when the cutting mechanism cuts the dust-sticking paper roll. The dust-sticking paper roll production device and the production method can improve the quality of the dust-sticking paper roll.

The utility model discloses continuous forming equipment for single-layer paper straws, which comprises a paper tube forming machine body, a traction convex opening is arranged on the surface of the outer end of the paper tube forming machine body, a paper tube traction wheel main body is arranged on the surface of the inner side of the traction convex opening, and the single-layer paper straws are clamped on the surface of the inner side of the paper tube traction wheel main body. A first motor is fixedly connected to the lower surface of the traction convex opening, an overturning arm is fixedly connected to the outer surface of a driving shaft of the first motor, a second motor is fixedly connected to the outer surface of the overturning arm, a square convex head is arranged on the outer surface of a driving rod of the second motor, and a cutting blade is installed on the outer surface of the square convex head in a sleeving mode. The turnover arm is driven by the motor to turn over repeatedly, the cutting blade can be driven to turn over repeatedly for cutting, repeated cutting is convenient and accurate, control is convenient, the cutting blade is directly connected in a sleeving mode for positioning and clamping during installation, and installation and disassembly are convenient.

The utility model discloses a pressurizing device for saddle type branch pipe forming, and relates to the technical field of saddle type branch pipe machining. The device comprises a base, a positioning sleeve, two lining assemblies and two outer abutting pieces, a top plate is fixed to the upper end of the base through a supporting column, a sliding rail is fixed to the upper end of the base, and two sliding blocks are connected to the upper end of the sliding rail in a sliding mode; the two lining assemblies can be used for fixing the interiors of saddle type branch pipes with different inner diameters in a matched mode, the adaptability of the device is improved, the two lining assemblies are placed in the visual horizontal end and the visual vertical end respectively in the using process, then the small air pump is matched with the electromagnetic three-way valve to inject air into the side telescopic air bag, and the air injection efficiency is improved. At the moment, the telescopic end of the side telescopic air bag expands to drive the two external expansion sleeve pieces to expand outwards until the arc-shaped linings on the outer surfaces of the two external expansion sleeve pieces abut against the interior of the saddle type branch pipe, and fixing is completed.

The utility model provides a self-reeling pipe forming jig which solves the technical problems that in the forming process of a self-reeling pipe, the inside and the outside are heated unevenly, deformation is prone to occurring, and products are poor. The self-coiling pipe forming jig comprises a shell and a forming pipe, the forming pipe is located in the shell, an annular gap is defined between the outer wall of the forming pipe and the inner wall of the shell, the annular gap is provided with a feeding port and a discharging port, and the inner diameter of the annular gap is gradually decreased in the direction from the feeding port to the discharging port; a first heating part wraps the shell, a second heating part is arranged in the forming pipe, and the second heating part is arranged in the axial direction of the forming pipe; the first heating part and the second heating part conduct heating on the outer side and the inner side of the annular gap, and it can be guaranteed that the temperatures of the inner layer and the outer layer are kept consistent when the self-coiling pipe is formed. When the temperature of the inner layer and the temperature of the outer layer are kept consistent, the inner layer and the outer layer of the product can be synchronously shrunk, so that the undesirable phenomena of inner folding, bulging and the like of the self-coiling pipe are avoided, and the finished product yield of the thickened self-coiling pipe is greatly improved.

The utility model relates to the technical field of medical test tube forming, and discloses an efficient cooling medical test tube forming die which comprises a support, an electric push rod is fixedly connected to the side wall of the support, a first push plate is fixedly connected to the output end of the electric push rod, a cooling machine is fixedly connected to one side wall of the push plate, and a quantifying assembly is arranged on the side wall of the support. A material extruding assembly is arranged on the side wall of the support, and a jacking assembly is arranged on one side of the first push plate; and the quantifying assembly comprises a material barrel, a heating machine is arranged on the outer wall of the material barrel, and a first hydraulic rod is fixedly connected to the side wall of the heating machine. According to the quantitative extrusion device, the hydraulic rod I is started to drive the material barrel to displace and then drive the placing plate at the top of the material barrel to translate, so that the outer wall of the placing plate slides in the connecting plate to block the upper part of the material barrel, and meanwhile, the material cover at the bottom of the material barrel is synchronously displaced and opened, so that plastic in the material barrel is extruded, and the effect of quantitatively extruding raw materials is realized; the test tube is cooled more uniformly.

The application provides a ceramic pipe forming die, which comprises a first die and a second die arranged symmetrically, the cross section of the first die and the second die in the radial direction is in a half ring shape, and the first die and the second die are folded to form a complete ring forming die; the first die and the second die each comprise a flange section, a straight section and a plug section arranged in sequence along the axial direction; wherein the straight section is an integral forming structure, the length of the straight section is not less than 2500 mm, and the pipe body structure of the straight section is provided with dense and uniformly distributed filter through holes. The ceramic pipe forming die in the application sets the straight section as an integral forming structure, and the filter through holes are dense and uniformly distributed, so that the ceramic pipe can be uniformly distributed and layered consistently in the whole length direction, the quality defects at the welding seam of the existing spliced die are avoided, the forming quality of the ceramic filter pipe is effectively improved, and the performance requirements of the industrial waste gas treatment are better met.

The invention belongs to the technical field of pipe fitting forming, and particularly relates to a ceramic matrix composite pipe fitting forming tool and method. A positioning tool comprises two outer mold sections and a core mold; a forming groove, a first positioning groove and a second positioning groove are formed in the outer mold section; the cross section of the forming groove is of a semicircular structure with one large end and one small end, and the diameter of the cross section of the forming groove is gradually reduced from one end to the other end; the first positioning groove is located at the large-diameter end of the forming groove, and the second positioning groove is located at the other end of the forming groove. The core mold comprises a central shaft and an inner mold barrel coaxially connected to the central shaft in a sleeving mode, and the outer diameter of the inner mold barrel is gradually increased from one end to the other end; the thick end of the inner mold barrel is vertically connected with a first baffle with the periphery protruding out of the outer side wall, and the thin end of the inner mold barrel is vertically provided with a second baffle with the periphery protruding out of the outer side wall; and the inner mold cylinder is detachably connected with the second baffle plate. Forming of the tail spray pipe of a conical pipe structure is achieved, demolding of the inner mold in the formed pipe fitting can be conveniently and rapidly completed, and the production efficiency is improved.

The utility model discloses a concrete square tube forming die for partition wall construction, which belongs to the technical field of concrete processing and comprises a base and a placing groove arranged at the top of the base, and a die component is arranged in the placing groove. The mold assembly comprises an inner ring mold and an outer ring mold which are arranged on the inner side of the containing groove, and a transmission unit arranged between the inner ring mold and the outer ring mold. The inner ring mold comprises an inner mold plate arranged in the containing groove, an expansion part arranged on the side face of the inner mold plate and a first telescopic part arranged on the inner side of the inner mold plate. The outer ring mold comprises an outer mold plate arranged in the containing groove and a second telescopic part arranged on the outer side of the outer mold plate, and the structure of the second telescopic part is the same as that of the first telescopic part. Through the arrangement of the mold assembly, operation is convenient and fast, the demolding time is shortened, and the working efficiency is improved.

This invention discloses a tee branch pipe forming machine, relating to the field of metal pipe processing technology. It includes a machine body, with a mold base rotatably connected to the top of the machine body and a motor for driving the mold base to rotate. Around the mold base, the top of the machine body is sequentially arranged a hole-pulling mechanism, a flaring mechanism, and a flattening mechanism. It also includes a pipe fitting circumferential positioning mechanism, which includes a frame plate fixed to the machine body. The frame plate is equipped with a pushing unit and a calibration component. The calibration component includes a mounting seat fixed to the top of the frame plate, with a motor mounted on the top of the mounting seat. This invention automatically identifies the opening position of the metal pipe after it is fed and adjusts the angle until the opening of the metal pipe is precisely aligned with the contact point, eliminating the need for manual adjustment. This effectively avoids problems such as hole skew and uneven force caused by angle deviation, significantly improving the forming accuracy and product qualification rate of the tee branch pipe, while also enhancing the automation level and production continuity of the entire machine.

The utility model relates to the technical field of plastic pipe production, in particular to a plastic pipe forming die which comprises an outer die and an inner die, connecting bridges are arranged on the outer side of the middle of the inner die at intervals, outer threads are arranged at the outer ends of the connecting bridges and are first outer threads, inner threads are arranged in the middle of the outer die, and the inner threads are second outer threads. The first external thread and the first internal thread are connected in a matched mode, the right side of the outer mold is provided with an internal thread, the second internal thread is a component installed at a plastic liquid outlet of a plastic forming machine, and a forming cavity is formed in the left side between the outer mold and the inner mold. A heating pipe connected with a power supply is arranged in the inner mold on the side surface of the forming cavity, and the heating pipe is an inner heating pipe. And the produced plastic pipe has the advantage of high strength.

This invention provides a seamless paper tube forming device, belonging to the field of seamless paper tube technology. The device includes a base and a feeding rack. The feeding rack is fixedly installed on the surface of the base. A gluing mechanism is installed on the surface of the base, comprising a glue tank and a first scraper. The glue tank is installed on the base surface, and a gluing roller is rotatably mounted on the surface of the glue tank. The lower surface of the gluing roller is immersed in the glue in the glue tank. The first scraper is slidably installed inside the glue tank to scrape off the glue on the surface of the gluing roller. This invention, by setting up a gluing mechanism, allows the gluing roller to rotate and apply glue to the paper surface. The first scraper removes the glue from the surface of the gluing roller, preventing excessive glue adhesion that could cause an unsightly paper tube and increasing the drying time, thus helping to ensure the quality of subsequent paper tube forming.