A pipe making machine

Abstract

The present invention discloses a pipe making machine, comprising a machine body; a forming device, the forming device is mounted on the machine body and used for forming pipe fittings; the forming device is provided with a forming cavity; a pasting device, the pasting device comprises a pipe rack and at least three pasting mechanisms, the pipe rack is mounted on the machine frame and is located below the forming device; the pipe rack is provided with a through hole connected to the outlet of the forming cavity and for the pipe to pass through; at least three pasting mechanisms are distributed on the pipe rack and are distributed at intervals around the central axis of the through hole; at least three pasting mechanisms jointly enclose a pipe pasting channel connected to the through hole; the pasting mechanism is used to pasting adhesive pasters on the outer wall of the pipe; a pipe fitting cutting device, the pipe fitting cutting device is mounted on the machine body and is located below the pipe rack and is used to cut the pipe fittings output from the pipe pasting channel. The pipe making machine of the present invention completes the continuous operations of forming, pasting and cutting pipe fittings, has a high degree of automation, and improves processing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe making equipment, in particular to a pipe making machine. Background Art

[0002] At present, in the process of making round tubes, especially fiber tubes, it is generally necessary to form the tubes, paste the tubes and cut the tubes before production. However, the existing tube making machines are usually mainly formed, and the formed tubes still need manual cooperation for pasting and cutting. The automation is poor and the operating efficiency is low. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention aims to provide a pipe making machine which can realize continuous operations of pipe forming, pasting and cutting with a high degree of automation.

[0004] The purpose of the present invention is achieved by the following technical solutions:

[0005] A pipe making machine, comprising:

[0006] Body;

[0007] A forming device, which is installed on the machine body and is used to form the pipe; the forming device is provided with a forming cavity;

[0008] The sticker device comprises a tube rack and at least three sticker mechanisms, wherein the tube rack is arranged on the machine frame and is located below the forming device; the tube rack is provided with a through hole connected to the outlet of the forming cavity and for the tube to pass through; at least three sticker mechanisms are distributed on the tube rack and are distributed at intervals around the central axis of the through hole; at least three sticker mechanisms jointly enclose a tube sticking channel connected to the through hole; the sticker mechanism is used to stick the sticky sticker on the outer wall of the tube;

[0009] The pipe cutting device is installed on the machine body and located below the pipe rack and is used to cut the pipes output from the pipe-attaching channel.

[0010] Furthermore, the sticker mechanism includes a paper roll and a guide roller assembly; the paper roll is pivotally connected to the tube frame and is used to roll up the adhesive sticker; the guide roller assembly is pivotally connected to the tube frame and is used to guide the adhesive sticker on the paper roll to adhere to the outer wall of the tube during rotation.

[0011] Furthermore, the guide roller assembly includes a first guide roller and a second guide roller, the first guide roller is pivotally connected to the pipe rack; the first guide roller is used to form a sticker gap with the outer wall of the tube after the tube is inserted into the through hole; the second guide roller is pivotally connected to the pipe rack and is located between the paper winding roller and the first guide roller, the second guide roller is used to wind the sticky sticker output by the paper winding roller and guide the sticky sticker into the sticker gap.

[0012] Furthermore, the forming device includes a lower hopper, a rotating member, a pressure head, and a pressure head driving mechanism, and the forming cavity is connected to the bottom end of the lower hopper; the pressure head is used to move toward the bottom end of the lower hopper under the drive of the pressure head driving mechanism to press the material in the lower hopper into the forming cavity; the rotating member includes a mounting seat and a plurality of blades, the mounting seat is mounted on the outer surface of the pressure head and is pivotally engaged with the pressure head; the plurality of blades are distributed at intervals around the circumference of the central axis of the mounting seat.

[0013] Furthermore, the molding device also includes a molding outer tube, a molding inner tube and a heating tube, the heating tube is connected to the molding inner tube, and the molding outer tube is sleeved on the outside of the molding inner tube; the inner wall of the molding outer tube and the outer wall of the molding inner tube are spaced to form the molding cavity.

[0014] Furthermore, the molding device also includes a molding inner tube blowing mechanism, which includes a plurality of first blowing channels, a plurality of first exhaust grooves and an air inlet connector for connecting to an external air supply pipeline; the first blowing channels are opened in the tube wall of the molding inner tube and extend along the axial direction of the molding inner tube; the plurality of first blowing channels are distributed at intervals around the circumference of the central axis of the molding inner tube; the plurality of first exhaust grooves are provided on the outer wall of the molding inner tube corresponding to each first blowing channel; and the air inlet connector is used to communicate with the first blowing channels.

[0015] Furthermore, the molding device also includes a molding outer tube blowing mechanism, which includes a plurality of second blowing channels, a plurality of second exhaust grooves and an air inlet hole for connecting to an external air supply pipeline; the second blowing channels are opened in the tube wall of the molding outer tube and extend along the axial direction of the molding outer tube; the plurality of second blowing channels are distributed at intervals around the circumference of the central axis of the molding outer tube; the plurality of second exhaust grooves are provided on the inner wall of the molding outer tube corresponding to each second blowing channel; and the air inlet hole is used to communicate with the second blowing channel.

[0016] Furthermore, the pressure head driving mechanism includes a cylinder body, a piston and a pressure head, and the formed inner tube is connected to the cylinder body; and the top end of the formed inner tube extends from the top end of the cylinder body and is fixedly connected to the top end of the cylinder body through the tube seat, and the bottom end of the formed inner tube extends from the bottom end of the cylinder body; the outer surface of the formed inner tube is movably sleeved with a sleeve; the sleeve and the formed inner tube are coaxially arranged; the piston is sleeved on the outer surface of the sleeve and movably connected to the cylinder body; the pressure head is sleeved on the outer surface of the part of the formed inner tube extending from the bottom end of the cylinder body and is fixedly connected to the bottom end of the sleeve; the pressure head and the sleeve are coaxially arranged.

[0017] Furthermore, the forming device also includes a feed channel, one end of which is formed as a feed end, and the other end of which is formed as a discharge end; the inner diameter of the feed end gradually increases from away from the discharge end to close to the discharge end; the discharge end is fixedly connected to the feed hopper and communicated with the feed hopper.

[0018] Furthermore, the pipe cutting device includes two cutting knives and two cutting knife driving mechanisms, the two cutting knives can approach or move away from each other along the radial direction of the machine body; the two cutting knives are spaced apart to form a cutting channel connected to the bottom of the pipe-attaching channel; each cutting knife driving mechanism is used to drive each cutting knife to move radially along the machine body.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the forming device on the machine body can form the pipe fittings, and the formed pipe fittings can be output from the outlet of the forming cavity into the pipe pasting channel, and after the adhesive stickers are pasted in the pipe pasting channel, they reach the pipe fitting cutting device for pipe cutting, thus completing the continuous operation of forming, pasting and cutting the pipe fittings, with a high degree of automation and improved processing efficiency. In addition, at least three pasting mechanisms of the pasting device can paste the stickers on the outer wall of the pipe, so that the width of the stickers is at least less than one-third of the arc of the outer wall of the pipe, reducing the requirements for the deformation of the stickers, and reducing the occurrence of cracks and wrinkles caused by insufficient deformation of the stickers, and the pasting effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the sticker device of the present invention;

[0022] Figure 3 It is a partial structural cross-sectional view of the molding device of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the pipe cutting device of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the molded outer tube of the present invention;

[0025] Figure 6 It is a schematic structural diagram of the molded inner tube of the present invention.

[0026] In the figure: 10, forming device; 11, forming outer tube; 111, second blowing channel; 112, second exhaust groove; 12, air inlet joint; 13, feeding channel; 14, forming inner tube; 15, lower hopper; 141, first blowing channel; 142, first exhaust groove; 20, pasting device; 21, tube rack; 22, pasting mechanism; 221, paper winding roller; 222, first guide roller; 223, second guide roller; 224, third guide roller; 225, tube pasting channel; 30, tube cutting device; 31, cutting knife; 32, cutting knife driving mechanism; 40, cylinder body; 50, rotating member; 51, mounting seat; 52, blade; 60, piston; 70, bushing; 80, pressure head. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0028] like Figure 1-6 The pipe making machine shown in the figure comprises a machine body, a forming device 10, a pasting device 20 and a pipe cutting device 30, wherein the forming device 10, the pasting device 20 and the pipe cutting device 30 are all mounted on the machine body. The forming device 10 is used to form pipes, and a forming cavity is provided in the forming device 10. The pasting device 20 comprises a pipe rack 21 and at least three pasting mechanisms 22, wherein a through hole is provided on the pipe rack 21 for the pipe to pass through, wherein the at least three pasting mechanisms 22 are distributed on the pipe rack 21 and are distributed circumferentially around the central axis of the through hole, and wherein the at least three pasting mechanisms 22 jointly form a pipe pasting channel 225, wherein the pipe pasting channel 225 is connected to the through hole, and the pasting mechanism 22 is used to past the adhesive pasting on the outer wall of the pipe. In addition, the pipe cutting device 30 is mounted below the pipe rack 21 and is used to cut the pipe output from the pipe pasting channel 225.

[0029] On the basis of the above structure, when the pipe making machine of the present invention is used, the raw material for producing the pipe fittings can be placed in the forming device 10, the raw material can be formed in the forming cavity of the forming device 10, the formed pipe fittings can be output from the outlet of the forming cavity and enter the pipe pasting channel 225, and at least three pasting mechanisms 22 of the pasting device 20 can paste the outer wall of the pipe, so that the width of the sticker is at least less than one-third of the arc of the outer wall of the pipe, reducing the requirements for the deformation of the sticker, and reducing the occurrence of cracks and wrinkles caused by insufficient deformation of the sticker, and the pasting effect is better. Of course, setting as many pasting mechanisms as possible to increase the circumferential sticker share will have a better effect.

[0030] After that, after the sticky sticker is pasted in the pipe pasting channel 225, it reaches the pipe cutting device 30 for pipe cutting, thus completing the continuous operations of pipe forming, sticker pasting and cutting, with a high degree of automation, thereby improving processing efficiency.

[0031] Furthermore, the above-mentioned sticker mechanism 22 includes a paper roll 221 and a guide roller assembly, wherein the paper roll 221 is pivotally connected to the tube frame 21, and the paper roll 221 can be used to roll up the adhesive sticker. In addition, the guide roller assembly is pivotally connected to the tube frame 21 and is used to guide the adhesive sticker on the paper roll 221 to be attached to the outer wall of the tube during rotation. In this way, when the pipe fitting enters the tube-attaching channel 225, the adhesive sticker can be attached to the outer wall of the round tube under the guidance of the guide roller assembly, and the pipe fitting can be continuously formed and output in the forming cavity, and the pipe fitting can be continuously input into the tube-attaching channel 225 under the action of this pushing force, and the pipe fitting will drive the adhesive sticker to be output, so that the adhesive sticker is attached along the axial direction of the round tube, and the adhesive sticker is continuously output by the paper roll 221 through the guide roller assembly under the pull of the pipe fitting, thereby realizing the online attachment of stickers to the outer wall of the tube.

[0032] Furthermore, the guide roller assembly in this embodiment includes a first guide roller 222 and a second guide roller 223. The first guide roller 222 is pivotally connected to the tube frame 21. The first guide roller 222 is used to form a sticker gap with the outer wall of the tube after the tube is inserted into the through hole. The second guide roller 223 is pivotally connected to the tube frame 21 and is located between the paper roll 221 and the first guide roller 222. The second guide roller 223 is used to wind the adhesive sticker output by the paper roll 221 and guide the adhesive sticker into the sticker gap. That is, the adhesive sticker on the paper roll 221 can be wound on the second guide roller 223 after being output, and is wound on the first guide roller 222 through the second guide roller 223, that is, the adhesive sticker can enter the sticker gap formed by the first guide roller 222 and the outer wall of the tube. When the outer wall of the tube reaches the first guide roller 222, the adhesive sticker can be adhered to the outer wall of the tube. In this way, the sticker process is relatively smooth.

[0033] When producing the tube, the power drives the tube and the adhesive sticker to move toward the tube cutting device at the same time, so as to achieve the purpose of continuous production and sticker pasting and ensure the smooth pasting.

[0034] More specifically, the guide roller assembly further includes a third guide roller 224, which is pivotally connected to the pipe rack 21 and is located between the first guide roller 222 and the second guide roller 223. The third guide roller 224 is used to wind the adhesive sticker output by the first guide roller 222 and to make the adhesive sticker taut, that is, the adhesive sticker on the paper roll 221 can be output and then wound on the second guide roller 223, and then tensioned by the third guide roller 224 and then wound on the first guide roller 222, so that the adhesive sticker enters the sticker gap in a tensioned state, so that the adhesive sticker attached to the outer wall of the tube is smoother and wrinkles are reduced.

[0035] Furthermore, an elastic component (not shown) may be provided on the tube rack 21, and the elastic component is used to provide elastic stress for causing the first guide roller 222 to approach the sticker gap, that is, under the elastic stress provided by the elastic component, the first guide roller 222 can approach the outer wall of the tube, so that the adhesive sticker can be better adhered to the outer wall of the tube.

[0036] Furthermore, the first guide roller 222 is a soft rubber roller. Similarly, the soft rubber of the soft rubber roller also has a certain elastic tension, which can make the adhesive sticker better adhere to the outer wall of the tube.

[0037] Furthermore, in the present embodiment, four sticker mechanisms 22 are specifically provided, and the four sticker mechanisms 22 are evenly distributed around the circumference of the central axis of the through hole. In this way, the outer wall of the tube can be pasted with stickers through the four sticker mechanisms 22, that is, the sticker width of each sticker mechanism 22 is one quarter of the arc of the tube wall, which greatly reduces the requirement for sticker deformation and achieves a better sticker effect.

[0038] On the basis of the above structure, four rotating seats are arranged on the tube frame 21 at intervals around the central axis of the through hole; a sticker mechanism 22 is arranged between two adjacent rotating seats; the first guide roller 222 of each sticker mechanism 22 is pivoted to the tube frame 21 through a rotating shaft; the two ends of each rotating shaft are respectively pivoted to two adjacent rotating seats, so that the first guide rollers 222 of two adjacent sticker mechanisms 22 can share a rotating seat, reducing the installation space and the volume of the tube frame 21. On the basis of this structure, the above elastic component can be arranged in the installation hole on the rotating seat, one end of the elastic component abuts against the inner wall of the installation hole of the rotating seat, and the other end of the elastic component abuts against the end of the rotating shaft.

[0039] It should be noted that the paper winding roller 221 , the second guide roller 223 and the third guide roller 224 can all be pivotally connected to the pipe frame 21 via a rotating shaft.

[0040] Furthermore, in this embodiment, the molding device 10 includes a lower hopper 15, a rotating member 50, a pressure head 80, and a driving mechanism for the pressure head 80. The molding cavity of the molding device 10 can be connected to the bottom end of the lower hopper 15. Driven by the driving mechanism for the pressure head 80, the pressure head 80 can move toward the bottom end of the lower hopper 15 to press the material in the lower hopper 15 into the molding cavity. In addition, the rotating member 50 includes a mounting seat 51 and a plurality of blades 52. When the rotating member 50 is installed, the mounting seat 51 can be sleeved on the outer surface of the pressure head 80, and the mounting seat 51 and the pressure head 80 are pivotally matched, that is, the mounting seat 51 can rotate relative to the pressure head 80, and the plurality of blades 52 are distributed at intervals around the central axis of the mounting seat 51.

[0041] In this way, when forming the pipe fittings, the raw materials for forming the pipe fittings can be poured into the lower hopper 15. By setting a rotating part 50 in the lower hopper 15, when the rotating part 50 rotates, the rotating blades 52 can pull the material to the center and continuously press it, waiting for the pressure head 80 to press down at any time to press the material into the molding cavity; in addition, when the pressure head 80 returns to the high position, the blades 52 rotate continuously, and the pre-pressed material on the peripheral part of the lower hopper 15 is loosened and filled to the center, and the material is repeatedly pressed into the mold cavity. In this way, during the rotation process of the blades 52 of the rotating part 50, the material in the lower hopper 15 can be stirred, so that the material is discharged evenly. In this way, the uniform discharge can prevent the eccentricity of the pressure head 80 from pressing the material. In addition, the rotating blades 52 can pre-press the material during the rotation process to increase the pre-pressing density of the material, which is convenient for the accelerated molding of the product, improves the production efficiency, and the density of the molded tube is balanced.

[0042] More specifically, the blades 52 spirally extend from top to bottom gradually toward the central axis of the mounting seat 51. That is to say, during the rotation of the mounting sleeve, the plurality of blades 52 can be driven by the rotational force to stack the material toward the center of the lower hopper 15, and pre-press the material. At the same time, each blade 52 can also deliver the material to the center of the lower hopper 15 along its own extension direction, so that the feeding and pre-pressing effects are better.

[0043] In addition, it should be noted that the rotation of the rotating member 50 can be driven by a motor or by a motor and a gear mechanism.

[0044] Furthermore, the above-mentioned molding device 10 may also include a molding outer tube 11, a molding inner tube 14 and a heating tube, wherein the heating tube is inserted into the molding inner tube 14, and the molding outer tube 11 is sleeved on the outside of the molding inner tube 14; the inner wall of the molding outer tube 11 and the outer wall of the molding inner tube 14 are spaced apart to form the above-mentioned molding cavity. Specifically, the molding outer tube 11 and the molding inner tube 14 are both fixedly connected to the bottom end of the above-mentioned lower hopper 15, and the molding cavity is connected to the bottom opening of the lower hopper 15. In this way, during the downward movement of the pressure head 80, the molding material can enter the molding cavity between the molding outer tube 11 and the molding inner tube 14, and the heating tube in the molding inner tube 14 can be directly heated to solidify the pipe fittings in the molding cavity and then output.

[0045] Of course, the above-mentioned molding cavity can also be directly formed by setting a cavity matching the pipe structure on the machine body, and the material can be pressed into the molding cavity by the pressure head 80 to form the material.

[0046] More specifically, the molding device 10 also includes a blowing mechanism for the molding inner tube 14, which includes a plurality of first blowing channels 141, a plurality of first exhaust grooves 142, and an air inlet connector 12, which is used to connect to an external air supply pipeline. Specifically, the first blowing channels 141 are opened in the tube wall of the molding inner tube 14 and extend along the axial direction of the molding inner tube 14; the plurality of first blowing channels 141 are distributed at intervals around the central axis of the molding inner tube 14; the plurality of first exhaust grooves 142 are provided on the outer wall of the molding inner tube 14 corresponding to each first blowing channel 141; and the air inlet connector 12 is used to communicate with the first blowing channels 141.

[0047] In the actual pipe forming process, high-pressure gas will be generated in the forming cavity due to high temperature and high pressure when the pipe is pressed, causing explosion or blasting. This will cause the pipe to be poorly combined and seriously damage the forming of the pipe. The multiple first exhaust grooves 142 set on the pipe wall of the forming inner pipe 14 can be used to squeeze out the gas in the forming cavity during the pipe forming process to prevent the occurrence of explosion or blasting. However, in this process, the first exhaust grooves 142 are also easily blocked. After the first exhaust grooves 142 are set, the gas in the forming cavity is squeezed out during the pipe forming process. The gas can discharge the dust and waste gas and waste residue blocked by the first exhaust grooves 142 into the first blowing channel. After that, the external air supply pipeline is connected through the air inlet joint 12, and the air supply pipeline can provide gas to enter through the first blowing channel 141. The entering gas can remove the dust and waste gas and waste residue in the first blowing channel, thereby facilitating the dust removal and cleaning of the first exhaust grooves 142.

[0048] Similarly, the molding device 10 also includes a blowing mechanism for the molding outer tube 11, which includes a plurality of second blowing channels 111, a plurality of second exhaust grooves 112 and an air inlet, and the air inlet is used to communicate with an external air supply pipeline. The second blowing channels 111 are opened in the tube wall of the molding outer tube 11 and extend along the axial direction of the molding outer tube 11; the plurality of second blowing channels 111 are distributed at intervals around the central axis of the molding outer tube 11; the plurality of second exhaust grooves 112 are provided on the inner wall of the molding outer tube 11 corresponding to each second blowing channel 111; the air inlet is used to communicate with the second blowing channels 111. In this way, in the actual pipe molding process, the second exhaust grooves 112 can also be used to squeeze out the gas in the molding cavity, and the gas can discharge the dust and waste gas and waste residue blocked by the second exhaust grooves 112 into the second blowing channel, further preventing the occurrence of gas explosion or explosion. Similarly, gas can be introduced into the second air blowing channel 111 through the air inlet hole, and the introduced gas can remove dust and waste gas and waste residue from the second air blowing channel 111 , thereby facilitating dust removal and cleaning of the first exhaust groove 142 .

[0049] It should be noted that the air intake in the first blowing channel 141 and the second blowing channel 111 can be performed after the tube is formed, that is, the forming device 10 is cleaned. When cleaning, a guide pipe can be provided at the bottom of the forming cavity, and the guide pipe can guide out the dust or debris blown out of the first exhaust groove 142 and the second exhaust groove 112.

[0050] Further, in this embodiment, the driving mechanism of the pressure head 80 includes a cylinder body 40, a piston 60 and a pressure head 80. The molded inner tube 14 is connected to the cylinder body 40, and the top end of the molded inner tube 14 extends from the top end of the cylinder body 40. The part of the top end of the molded inner tube 14 extending from the top end of the cylinder body 40 can be fixedly connected to the top end of the cylinder body 40 through a tube seat, and the bottom end of the molded inner tube 14 extends from the bottom end of the cylinder body 40. Specifically, a sleeve 70 is movably mounted on the outer surface of the molded inner tube 14, that is, the sleeve 70 can move relative to the molded inner tube 14, and the sleeve 70 is coaxially arranged with the molded inner tube 14. In addition, the piston 60 is mounted on the outer surface of the sleeve 70 and movably connected to the cylinder body 40. The pressure head 80 is mounted on the outer surface of the molded inner tube 14 extending from the bottom end of the cylinder body 40, and is fixedly connected to the bottom end of the sleeve 70; the pressure head 80 is coaxially arranged with the sleeve 70.

[0051] Oil can be introduced through the oil inlet on the cylinder body 40 to push the piston 60 to move downward. Since the piston 60 is sleeved on the outer surface of the sleeve 70 and fixed, the sleeve 70 will be driven to move downward along the axial direction of the inner tube 14 during the downward pressing of the piston 60, thereby driving the pressure head 80 fixed to the bottom end of the sleeve 70 to move downward along the axial direction of the inner tube 14 to squeeze the material into the molding cavity; and when the pressure head 80 is reset, the oil circuit can be changed to allow oil to enter through the oil return port on the cylinder body 40, driving the piston 60 upward, and so on. It should be noted that, in this embodiment, the sleeve 70 is coaxially arranged with the inner tube 14, and the piston 60 is fixed to the sleeve 70, thereby driving the pressure head 80 coaxially arranged with the sleeve 70 to reciprocate, that is, the pressure head 80 always remains coaxial with the inner tube 14 during the movement, thereby preventing the pressure head 80 from being eccentric, so that the concentricity of the formed pipe fitting is higher.

[0052] Of course, the oil inlet and outlet of the cylinder 40 and the reciprocating motion of the piston 60 are consistent with the hydraulic cylinder driving principle in the prior art, which will not be described in detail. In addition, the pipe seat can be fixed to the cylinder 40 by screws or by welding.

[0053] Furthermore, the forming device 10 also includes a feeding channel, one end of which is formed as a feeding end, and the other end of which is formed as a discharging end. The inner diameter of the feeding end gradually increases from far away from the discharging end to close to the discharging end; the discharging end is fixed to the discharging hopper 15 and communicates with the discharging hopper 15. When in use, the feeding end can be connected to the outlet of an external screw feeder, so that the material transported by the screw feeder can enter the feeding channel 13 through the feeding end and be introduced into the discharging hopper 15 through the discharging end. Since the inner diameter of the feeding end of the discharging channel gradually increases from far away from the discharging end to close to the discharging end, when feeding at the feeding end, the caliber of the discharging should be larger than the caliber of the feeding, reducing the possibility of blockage, so as to facilitate smooth discharging.

[0054] More specifically, in this embodiment, a wedge-shaped feed trough that is connected to the feed channel can be provided at the feed end, and the inner diameter of the wedge-shaped feed trough gradually increases from far away from the discharge end to close to the discharge end, that is, the feed end can pass through the wedge-shaped material guide, which is convenient for processing and smooth material guidance.

[0055] Of course, the feed end may also be configured as a cone, and may also form a structure with a small inlet and a large outlet. In addition, the inwall of the feed end may be configured as an inclined plane, and may also form a structure with a small inlet and a large outlet.

[0056] Furthermore, a blowing port may be provided on one side of the feed end, and the blowing port is used to communicate with an external air supply device. When in use, if the structure of the above-mentioned feed end still encounters a special situation of material blockage, at this time, high-pressure gas provided by the air supply device can be introduced through the blowing port, and the blocked material at the feed end can be dispersed by air pressure, thereby making the feeding channel smooth, which is beneficial to the continuous production of pipe fittings.

[0057] Furthermore, the pipe cutting device 30 in this embodiment includes two cutting knives 31 and two cutting knife driving mechanisms 32. The two cutting knives 31 can move closer to or farther from each other along the radial direction of the machine body, and a cutting channel is formed between the two cutting knives 31, and the cutting channel is connected to the lower part of the pipe pasting channel 225. Each cutting knife driving mechanism 32 is used to drive each cutting knife 31 to move along the radial direction of the machine body. In this way, after the pipe is pasted in the pipe pasting channel 225, it can be output downward into the cutting channel, so that the two cutting knife driving mechanisms 32 simultaneously drive the two cutting knives 31 to move closer to each other, and the cutting of the pipe in the cutting channel can be completed.

[0058] It should be noted that the cutting blade 31 of the cutting blade 31 can be a curved surface that matches the arc of the outer surface of the pipe fitting, which has a better cutting effect. In addition, the cutting blade drive mechanism 32 can be a cylinder, and the driving process is relatively stable.

[0059] In addition, the pipe cutting device 30 can also be implemented by a rotating cutting knife 31. By arranging a motor on the machine body, the motor drives the cutting knife 31 to rotate one circle in the circumferential direction of the pipe to complete the pipe cutting operation.

[0060] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A pipe making machine, characterized in that: include, Body; A forming device, which is installed on the machine body and is used to form the pipe; the forming device is provided with a forming cavity; The sticker device comprises a tube rack and at least three sticker mechanisms, wherein the tube rack is arranged on the machine frame and is located below the forming device; the tube rack is provided with a through hole connected to the outlet of the forming cavity and for the tube to pass through; at least three sticker mechanisms are distributed on the tube rack and are distributed at intervals around the central axis of the through hole; at least three sticker mechanisms jointly enclose a tube sticking channel connected to the through hole; the sticker mechanism is used to stick the sticky sticker on the outer wall of the tube; The sticker mechanism includes a paper roll and a guide roller assembly; the paper roll is pivotally connected to the tube frame and is used to roll up the adhesive sticker; the guide roller assembly is pivotally connected to the tube frame and is used to guide the adhesive sticker on the paper roll to adhere to the outer wall of the tube during rotation; The guide roller assembly includes a first guide roller and a second guide roller, the first guide roller is pivotally connected to the pipe frame; the first guide roller is used to form a sticker gap with the outer wall of the pipe after the pipe is inserted into the through hole; the second guide roller is pivotally connected to the pipe frame and is located between the paper reel and the first guide roller, and the second guide roller is used to wind the sticky sticker output by the paper reel and guide the sticky sticker into the sticker gap; A pipe cutting device is installed on the machine body and located below the pipe rack and is used to cut the pipes output from the pipe-attaching channel; The forming device comprises a lower hopper, a rotating member, a pressure head, and a pressure head driving mechanism, wherein the forming cavity is connected to the bottom end of the lower hopper; the pressure head is used to move toward the bottom end of the lower hopper under the drive of the pressure head driving mechanism to press the material in the lower hopper into the forming cavity; the rotating member comprises a mounting seat and a plurality of blades, the mounting seat is sleeved on the outer surface of the pressure head and is pivotally matched with the pressure head; the plurality of blades are distributed at intervals around the circumference of the central axis of the mounting seat; The molding device also includes a molding outer tube, a molding inner tube and a heating tube, the heating tube is inserted into the molding inner tube, and the molding outer tube is sleeved outside the molding inner tube; the inner wall of the molding outer tube and the outer wall of the molding inner tube are spaced to form the molding cavity; The molding device also includes a molding inner tube blowing mechanism, which includes a plurality of first blowing channels, a plurality of first exhaust grooves, and an air inlet connector for connecting to an external air supply pipeline; the first blowing channels are opened in the tube wall of the molding inner tube and extend along the axial direction of the molding inner tube; the plurality of first blowing channels are distributed at intervals around the circumference of the central axis of the molding inner tube; the plurality of first exhaust grooves are provided on the outer wall of the molding inner tube corresponding to each first blowing channel; and the air inlet connector is used to communicate with the first blowing channels.

2. The pipe making machine according to claim 1, characterized in that: The molding device also includes a molding outer tube blowing mechanism, which includes a plurality of second blowing channels, a plurality of second exhaust grooves, and an air inlet hole for connecting to an external air supply pipeline; the second blowing channels are opened in the tube wall of the molding outer tube and extend along the axial direction of the molding outer tube; the plurality of second blowing channels are distributed at intervals around the circumference of the central axis of the molding outer tube; the plurality of second exhaust grooves are provided on the inner wall of the molding outer tube corresponding to each second blowing channel; the air inlet hole is used to communicate with the second blowing channel.

3. The pipe making machine according to claim 2, characterized in that: The pressure head driving mechanism includes a cylinder body, a piston and a pressure head. The formed inner tube is connected to the cylinder body; the top end of the formed inner tube extends from the top end of the cylinder body and is fixedly connected to the top end of the cylinder body through a tube seat, and the bottom end of the formed inner tube extends from the bottom end of the cylinder body; the outer surface of the formed inner tube is movably sleeved with a sleeve; the sleeve and the formed inner tube are coaxially arranged; the piston is sleeved on the outer surface of the sleeve and movably connected to the cylinder body; the pressure head is sleeved on the outer surface of the part of the formed inner tube extending from the bottom end of the cylinder body and is fixedly connected to the bottom end of the sleeve; the pressure head and the sleeve are coaxially arranged.

4. The pipe making machine according to claim 3, characterized in that: The forming device also includes a feed channel, one end of which is formed as a feed end, and the other end of which is formed as a discharge end; the inner diameter of the feed end gradually increases from far away from the discharge end to close to the discharge end; the discharge end is fixedly connected to the feed hopper and communicated with the feed hopper.

5. The pipe making machine according to claim 4, characterized in that: The pipe cutting device includes two cutting knives and two cutting knife driving mechanisms. The two cutting knives can approach or move away from each other along the radial direction of the machine body. A cutting channel connected to the bottom of the pipe sticking channel is formed between the two cutting knives. Each cutting knife driving mechanism is used to drive each cutting knife to move along the radial direction of the machine body.

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