WO2020024581A1

WO2020024581A1 - Tube making machine

Info

Publication number: WO2020024581A1
Application number: PCT/CN2019/076419
Authority: WO
Inventors: 单伟锋
Original assignee: 广州至简通用设备制造有限公司
Priority date: 2018-08-01
Filing date: 2019-02-28
Publication date: 2020-02-06
Also published as: CN109014957A

Abstract

Disclosed is a tube making machine, comprising a machine body; a forming device (10), the forming device (10) being installed on the machine body and used for forming a tube, and the forming device (10) being provided with a forming cavity; a paper application device (20), the paper application device (20) comprising a tube rack (21) and at least three paper application mechanisms (22), wherein the tube rack (21) is arranged on a machine frame and located below the forming device (10), the tube rack (21) is provided with a through hole in communication with an outlet of the forming cavity and for the tube to pass through, the at least three paper application mechanisms (22) are distributed on the tube rack (21) and circumferentially distributed at intervals around the central axis of the through hole, the at least three paper application mechanisms (22) jointly enclose a channel in communication with the through hole for sticking the paper to a tube, and the paper application mechanisms (22) are used for sticking sticky paper to an outer wall of the tube; and a tube cutting device (30), the tube cutting device (30) being installed on the machine body and located below the tube rack (21), and being used for cutting the tube output from the channel for sticking the paper to the tube. The tube making machine completes continuous operations involving forming of, paper sticking to and cutting of a tube, and has a relatively high degree of automation, thus improving processing efficiency.

Description

Pipe making machine

Technical field

The utility model relates to the technical field of pipe-making equipment, in particular to a pipe-making machine.

Background technique

At present, in the manufacturing process of round tubes, especially fiber tubes, tube molding, tube stickers and tube cutting are generally required, and then production is carried out. However, the existing tube-making machines are usually mainly formed, and the tube is formed after molding. There is still a need for manual cooperation to carry out the sticker, and finally cutting, the degree of automation is poor, and the operation efficiency is low.

Utility model content

In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a pipe-making machine, which can realize continuous operations of pipe forming, stickers and cutting, and has a high degree of automation.

The purpose of the utility model is achieved by the following technical solutions:

A pipe making machine comprising,

Body

Forming device, which is installed on the body and used for forming pipe fittings; the forming device is provided with a forming cavity;

Sticker device. The sticker device includes a pipe rack and at least three sticker mechanisms. The pipe is mounted on the rack and is located below the molding device. The pipe rack is provided with a through hole that communicates with the outlet of the molding cavity and allows the pipe to pass through; A sticker mechanism is distributed on the pipe frame and is spaced around the central axis of the through hole at a circumferential interval; at least three sticker mechanisms collectively surround a pipe sticking channel communicating with the through hole; the sticker mechanism is used to attach an adhesive sticker to On the outer wall of the tube;

The pipe fitting cutting device is installed on the machine body and located below the pipe rack, and is used for cutting the pipe fitting output from the pipe sticking channel.

Further, the sticker mechanism includes a paper roll and a guide roller assembly; the paper roll is pivotally connected to the tube holder and is used to roll an adhesive sticker; the guide roller assembly is pivotally connected to the tube holder and used to guide the paper roll during the rotation process The sticky sticker is attached to the outer wall of the tube.

Further, 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 space from the outer wall of the pipe after the pipe passes through the through hole; Sticker gap; the second guide roller is pivotally connected to the pipe frame and is located between the roll paper roller and the first guide roller. The second guide roller is used to wind the sticky sticker output by the roll paper roller and guide the sticky sticker into the sticker gap. Inside.

Further, the forming device includes a lower hopper, a rotating member, an indenter, and an indenter driving mechanism, and the forming cavity is in communication with the bottom end of the lower hopper; the indenter is used to move toward the bottom of the lower hopper under the driving of the indenter driving mechanism. End movement to press the material in the lower hopper into the molding cavity; the rotating part includes a mounting seat and a plurality of blades, the mounting seat is sleeved on the outer surface of the indenter and pivotally cooperates with the indenter; The central axis is spaced circumferentially apart.

Further, the molding device further includes a molding outer tube, a molding inner tube, and a heating tube. The heating tube passes through the molding inner tube, and the molding outer tube is sheathed outside the molding inner tube. The inner wall of the molding outer tube is spaced from the outer wall of the molding inner tube. The forming cavity.

Further, the molding device further includes a molding inner tube blowing mechanism, and the molding inner tube blowing mechanism includes a plurality of first air blowing channels, a plurality of first exhaust grooves, and an air inlet joint for connecting with an external air supply pipe; The first blowing channels are opened in the wall of the molded inner tube and extend along the axial direction of the molded inner tube. A plurality of first blowing channels are circumferentially spaced around the central axis of the molded inner tube. Each of the first blowing channels corresponds to The plurality of first exhaust grooves are provided on the outer wall of the molded inner pipe; the air inlet joint is used to communicate with the first air blowing channel.

Further, the molding device further includes a molding outer tube blowing mechanism, and the molding outer tube blowing mechanism includes a plurality of second blowing channels, a plurality of second exhaust grooves, and an air inlet hole for connecting with an external air supply pipe; The second blowing channels are opened in the wall of the molded outer tube and extend along the axial direction of the molded outer tube. A plurality of second blowing channels are spaced circumferentially around the central axis of the molded outer tube. Each second blowing channel corresponds to The plurality of second exhaust grooves are provided on the inner wall of the molded outer pipe; the air inlet hole is used to communicate with the second blowing channel.

Further, the indenter driving mechanism includes a cylinder body, a piston, and an indenter, and the molded inner tube passes through the cylinder body; and the top end of the molded inner tube protrudes from the top end of the cylinder body and is fixedly connected to the top end of the cylinder body through a tube seat. The bottom end of the molded inner tube protrudes from the bottom end of the cylinder body; a sleeve that is movable on the outer surface of the molded inner tube is provided with a sleeve; the sleeve is coaxially disposed with the molded inner tube; the piston is sleeved on the outer surface of the sleeve and is movably connected Inside the cylinder body; the indenter is sleeved on the outer surface of a part of the inner tube protruding from the bottom end of the cylinder body and is fixedly connected to the bottom end of the sleeve; the indenter is coaxially disposed with the sleeve.

Further, the forming device further includes a feeding channel, one end of the feeding channel is formed as a feeding end, and the other end of the feeding channel is formed as a discharging end; an inner diameter of the feeding end is gradually increased from being away from the discharging end to being closer to the discharging end. Large; the discharge end is fixed on the lower hopper and communicates with the lower hopper.

Further, the pipe cutting device includes two cutting knives and two cutting knife driving mechanisms, and the two cutting knives can approach each other or away from each other in the radial direction of the body; the two cutting knives are spaced from each other to form a position below the pipe sticking channel. Connected cutting channels; each cutting blade driving mechanism is used to drive each cutting blade to move along the radial direction of the body.

Compared with the prior art, the utility model has the beneficial effect that the forming device on the body can form the pipe fittings, and the formed pipe fittings can be output from the exit of the forming cavity into the pipe sticking channel, and the sticky stickers are stuck in the pipe sticking channel to reach the pipe pieces. The pipe is cut at the cutting device, which completes the continuous operation of forming, stickers and cutting of the pipe, which has a high degree of automation and improves processing efficiency. In addition, at least three sticker mechanisms of the sticker device can paste the outer wall of the tube, so that the width of the sticker is at least less than one-third of an arc of the outer wall of the tube, reducing the requirement for the amount of deformation of the sticker, and reducing the occurrence of insufficient stickers. The occurrence of cracks and wrinkles, etc., the sticker effect is better.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of the present invention;

2 is a schematic structural diagram of a sticker device according to the present invention;

3 is a cross-sectional view of a partial structure of a forming device of the present invention;

4 is a schematic structural diagram of a pipe cutting device according to the present invention;

5 is a schematic structural diagram of a molded outer tube of the present invention;

FIG. 6 is a schematic structural diagram of a molded inner tube of the present invention.

In the figure: 10, forming device; 11, forming outer tube; 111, second blowing channel; 112, second exhaust groove; 12, inlet joint; 13, feeding channel; 14, forming inner tube; Lower hopper; 141, first air blowing channel; 142, first exhaust slot; 20, sticker device; 21, tube holder; 22, sticker mechanism; 221, paper roll; 222, first guide roller; 223, first Two guide rollers; 224, third guide rollers; 225, tube sticking channel; 30, pipe cutting device; 31, cutting knife; 32, cutting knife driving mechanism; 40, cylinder body; 50, rotating parts; 51, mounting seat; 52. Blade; 60. Piston; 70. Shaft sleeve; 80. Indenter.

detailed description

In the following, the present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be noted that, under the premise of no conflict, the embodiments described below can be arbitrarily combined to form new implementations between technical features. example.

A pipe making machine shown in FIG. 1-6 includes a body, a molding device 10, a sticker device 20, and a pipe cutting device 30. The molding device 10, the sticker device 20, and the pipe cutting device 30 are all mounted on the machine body. The forming device 10 is used for forming a pipe, and the forming device 10 is provided with a forming cavity. The above-mentioned sticker device 20 includes a pipe frame 21 and at least three sticker mechanisms 22. The pipe frame 21 is provided with a through hole through which the pipe passes. The at least three sticker mechanisms 22 are distributed on the pipe frame 21 and surround the center of the through hole. The axis is distributed at a circumferential interval, and at least three sticker mechanisms 22 collectively surround a tube sticking channel 225 which communicates with the through hole. The sticker mechanism 22 is used to stick an adhesive sticker on the outer wall of the tube. In addition, the pipe cutting device 30 is installed below the pipe holder 21 and is used to cut the pipe output from the pipe attaching channel 225.

Based on the above structure, when using the pipe-making machine of the present invention, the raw materials for producing pipe fittings can be placed in the molding device 10, and the raw materials can be molded in the molding cavity of the molding device 10, and the molded pipe can be exited from the molding cavity. Output, enter the tube pasting channel 225, at least three sticker mechanisms 22 of the sticker device 20 can paste the outer wall of the tube, so that the width of the sticker is at least less than one-third of the arc of the outer wall of the tube, reducing the requirement for the amount of deformation of the sticker can reduce The occurrence of cracks and wrinkles due to insufficient deformation of the sticker makes the sticker better. Of course, it is better to set as many sticker mechanisms as possible to make the circle sticker share more, and the effect will be better.

After that, after the sticky sticker is pasted in the pipe sticking channel 225, the pipe is cut at the pipe cutting device 30, so that the continuous operation of forming, sticker and cutting of the pipe is completed, which has a high degree of automation and improves processing efficiency.

Further, the above-mentioned sticker mechanism 22 includes a paper roll 221 and a guide roller assembly. The paper roll 221 is pivotally connected to the tube frame 21. The paper roll 221 can be used to roll an adhesive sticker. In addition, the guide roller assembly is pivotally connected to the pipe frame 21 and is used to guide the sticky sticker on the paper roll 221 to the outer wall of the pipe during rotation. In this way, when the pipe fitting enters the pipe sticking channel 225, the adhesive sticker can be adhered to the outer wall of the round pipe under the guidance of the guide roller assembly, and the pipe fitting can be continuously formed and output in the molding cavity, and the pipe fitting can be pushed here. Under the continuous input of the tube sticking channel 225, the tube will drive the output of the sticky sticker to make the sticky sticker fit along the axial direction of the circular tube, and the sticky sticker will be continuously output by the paper roll 221 through the guide roller assembly under the pull of the tube, thereby achieving online Sticker on the outer wall of the tube.

Further, 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 pipe frame 21, and the first guide roller 222 is used to pass through the pipe. The inside of the hole forms a sticker gap with the outer wall of the tube. The second guide roller 223 is pivotally connected to the tube holder 21 and is located between the roll paper roller 221 and the first guide roller 222. The second guide roller 223 is used to wind the roll paper roller. 221 output the sticky sticker and guide the sticky sticker into the sticker gap. That is, the sticky sticker on the roll paper roll 221 can be wound around the second guide roller 223 after being output, and can be wound around the first guide roller 222 through the second guide roller 223, that is, the sticky sticker can enter the first guide. The sticker gap formed between the roller 222 and the outer wall of the tube. When the outer wall of the tube reaches the first guide roller 222, the sticky sticker can be adhered to the outer wall of the tube. In this way, the sticker process is relatively smooth.

The power during the production of the tube drives the tube forming and the adhesive sticker to step toward the pipe cutting device at the same time, so as to achieve the purpose of continuous production and stickers and ensure the smoothness of the stickers.

More specifically, the above-mentioned guide roller assembly further includes a third guide roller 224, which is pivotally connected to the pipe frame 21 and located between the first guide roller 222 and the second guide roller 223, and the third guide roller The roller 224 is used for winding the sticky sticker outputted by the first guide roller 222 and making the sticky sticker taut, that is, the sticky sticker on the roll paper roll 221 can be wound around the second guide roller 223 after being output, and passed through the third The guide roller 224 is wound around the first guide roller 222 after being tensioned, so that the adhesive sticker enters into the sticker gap in a tensioned state, so that the adhesive sticker attached to the outer wall of the tube is more flattened, and the occurrence of wrinkles is reduced.

Further, specifically, an elastic member (not shown) may be provided on the pipe frame 21, and the elastic member is used to provide an elastic stress that causes the first guide roller 222 to approach the gap between the stickers, that is, an elastic stress effect provided by the elastic member. Next, the first guide roller 222 can approach the outer wall of the tube, so that the adhesive sticker is better adhered to the outer wall of the tube.

Further, 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.

Further, in this embodiment, four sticker mechanisms 22 are specifically provided, and the four sticker mechanisms 22 are evenly spaced around the circumference of the central axis of the through hole. In this way, the four sticker mechanisms 22 can be used to paste the outer wall of the tube, that is, each The sticker width of the sticker mechanism 22 is a quarter arc of the tube wall, which greatly reduces the requirement for the deformation amount of the sticker, and the sticker effect is better.

On the basis of the above structure, the pipe frame 21 is provided with four turntables that are circumferentially spaced around the center axis of the through hole; a sticker mechanism 22 is provided between two adjacent turntables; The guide roller 222 is pivotally connected to the pipe frame 21 through a rotation shaft; two ends of each rotation shaft are respectively pivotally connected to two adjacent turrets, so that the first guide rollers 222 of two adjacent sticker mechanisms 22 can share one turret, reducing Installation space, reducing the volume of the pipe rack 21. Based on this structure, the above-mentioned elastic member may be provided in the mounting hole position on the turntable. One end of the elastic member abuts on the inner wall of the mounting hole position of the turntable, and the other end of the elastic member abuts on the end of the rotating shaft. Just fine.

It should be noted that, the aforementioned paper roll 221, the second guide roller 223, and the third guide roller 224 can all be pivotally connected to the pipe frame 21 through a rotating shaft.

Further, 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 may communicate with the bottom end of the lower hopper 15, Driven by the 80 driving mechanism, 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 indenter 80, and the mounting seat 51 and the indenter 80 pivotally cooperate, that is, the mounting The seat 51 is rotatable relative to the indenter 80, and the above-mentioned multiple blades 52 are spaced circumferentially around the central axis of the mounting seat 51.

In this way, when forming the pipe, the raw materials for forming the pipe can be poured into the lower hopper 15, and by setting the rotating member 50 in the lower hopper 15, when the rotating member 50 rotates, the rotating blade 52 can continuously pull the animal feed to the center, Waiting for the pressing of the indenter 80 at any time will press the material into the molding cavity. In addition, when the indenter 80 returns to a high position, because the blade 52 keeps turning, the pre-pressed material around the lower hopper 15 will be loosened and moved to the center. Fill and repeatedly press the material into the cavity. In this way, during the rotation of the blades 52 of the rotating member 50, the materials in the lower hopper 15 can be stirred, so that the materials are uniformly discharged, so that the materials are evenly distributed, and the eccentricity of the pressing head 80 to prevent the material from being pressed can be prevented. In addition, the rotating blade 52 can pre-press the material during the rotation process, increasing the pre-pressing density of the material, facilitating the accelerated molding of the product, improving the production efficiency, and the density of the forming tube is balanced.

More specifically, the above-mentioned blades 52 spirally extend from top to bottom toward the central axis close to the mounting seat 51, that is, during the rotation of the plurality of blades 52 in the mounting sleeve, the material can be driven by the rotational force The material is piled down to the center of the lower hopper 15 and the material is pre-pressed. At the same time, each blade 52 can also send the material to the center of the lower hopper 15 along its own extension direction. The feeding and pre-pressing effect is better.

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

Further, the above-mentioned molding device 10 may further include a molding outer tube 11, a molding inner tube 14, and a heating tube. The heating tube passes through the molding inner tube 14, and the molding outer tube 11 is sheathed outside the molding inner tube 14; The inner wall of the tube 11 and the outer wall of the molded inner tube 14 are spaced apart to form the aforementioned molding cavity. Specifically, the molded outer tube 11 and the molded inner tube 14 are fixedly connected to the bottom end of the lower hopper 15, and the molding cavity is in open communication with the bottom end of the lower hopper 15. In this way, during the downward movement of the indenter 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 make the molding cavity The inner fittings are cured and then output.

Of course, the above-mentioned molding cavity can also be directly formed by providing a cavity on the body that matches the structure of the pipe fittings, and the material can also be formed by pressing the material into the molding cavity by the indenter 80.

More specifically, the molding device 10 further includes a blowing mechanism for the molding inner tube 14, and the blowing mechanism for the molding inner tube 14 includes a plurality of first blowing channels 141, a plurality of first exhaust grooves 142, and an air inlet joint 12. The air inlet connector 12 is used to connect with an external air supply line. Specifically, the first blowing channels 141 are opened in the tube wall of the molded inner tube 14 and extend along the axial direction of the molded inner tube 14; a plurality of first blowing channels 141 are circumferentially spaced around the central axis of the molded inner tube 14; The plurality of first exhaust grooves 142 are provided on the outer wall of the molded inner pipe 14 corresponding to the first blowing channel 141; the air inlet joint 12 is used to communicate with the first blowing channel 141.

In the actual pipe forming process, high pressure gas will be generated in the molding cavity when the pipe is pressed due to high temperature and pressure, which will cause gas explosion or shot firing. This will make the tube badly damaged and seriously damage the forming of the pipe. The plurality of first exhaust grooves 142 provided on the wall of the tube can be used for the extrusion of the gas in the molding cavity during the tube forming process, preventing the occurrence of gas explosion or shot firing. However, in this process, the first exhaust groove 142 is also easily clogged. After the first exhaust groove 142 is provided, the gas for the molding cavity is extruded during the tube forming process, and the gas can push the first exhaust groove 142 clogged fine dust and waste gas residue are discharged into the first air blowing channel, and then the external air supply pipeline is conducted through the air inlet connector 12, and the gas supply pipeline can provide gas to enter through the first air blowing channel 141. The fine dust and waste gas residue in the first air blowing passage can be eliminated, thereby facilitating the dust removal, chip removal, and cleaning of the first exhaust groove 142.

Similarly, the above-mentioned molding device 10 further includes a blowing mechanism for the molding outer tube 11, and the blowing mechanism for the molding outer tube 11 includes a plurality of second blowing channels 111, a plurality of second exhaust grooves 112, and an air inlet hole. The air inlet is used to communicate with an external air supply line. The above-mentioned second blowing channels 111 are opened in the tube wall of the molded outer tube 11 and extend along the axial direction of the molded outer tube 11; a plurality of second blowing channels 111 are circumferentially spaced around the central axis of the molded outer tube 11; The plurality of second exhaust grooves 112 are provided on the inner wall of the molded outer tube 11 corresponding to each of the second blowing channels 111; the air inlet hole is used to communicate with the second blowing channel 111. In this way, during the actual pipe forming process, the second exhaust groove 112 can also be used to squeeze out the gas in the molding cavity. This gas can discharge the fine dust blocked by the second exhaust groove 112 and the waste gas residue into the second blowing channel. Further prevent the occurrence of gas explosion or shot firing. Similarly, the gas can also be introduced into the second blowing channel 111 through the air inlet hole, and the entering gas can exclude the fine dust and waste gas residue of the second blowing channel 111, thereby facilitating the dust discharge of the first exhaust tank 142. Anti-dandruff and clean.

It should be noted that the intake air in the first air blowing channel 141 and the second air blowing channel 111 may be performed after the pipe is formed, that is, the forming device 10 is cleaned. During cleaning, a discharge pipe may be provided at the bottom end of the molding cavity, and the discharge pipe may discharge the dust or debris blown out from the first exhaust groove 142 and the second exhaust groove 112.

Further, in this embodiment, the driving mechanism of the indenter 80 includes a cylinder block 40, a piston 60, and an indenter 80. The molded inner tube 14 passes through the cylinder 40, and the top end of the molded inner tube 14 is driven by the cylinder. The top end of the body 40 protrudes, and the top end of the molded inner tube 14 is protruded from the top end of the cylinder 40 through the pipe seat. The bottom end of the molded inner tube 14 protrudes from the bottom end of the cylinder 40. . Specifically, the sleeve that moves on the outer surface of the molded inner tube 14 is provided with a sleeve 70, that is, the sleeve 70 can move relative to the molded inner tube 14, and the sleeve 70 is coaxially disposed with the molded inner tube 14. In addition, the above-mentioned piston 60 is sleeved on the outer surface of the sleeve 70 and is movably inserted into the cylinder block 40. The indenter 80 is sleeved on the outer surface of a part of the inner tube 14 protruding from the bottom end of the cylinder block 40 and is fixedly connected to the bottom end of the sleeve 70; the indenter 80 is coaxially disposed with the sleeve 70.

Oil can be injected through the oil inlet on the cylinder 40 to push the piston 60 downward. Since the piston 60 is sleeved on the outer surface of the sleeve 70 and fixed, the sleeve 70 will be driven along the molding process when the piston 60 is pressed down. The axial movement of the inner tube 14 moves downward, thereby driving the indenter 80 fixedly connected to the bottom end of the sleeve 70 along the axial direction of the forming inner tube 14 to squeeze the material into the molding cavity; and the indenter 80 is reset. At this time, the oil path can be changed so that oil enters through the oil return port on the cylinder block 40 to drive the piston 60 upward, and so on. It should be noted that, in this embodiment, the sleeve 70 is coaxially provided with the molded inner tube 14, and the piston 60 is fixedly connected to the sleeve 70, thereby driving the indenter 80 coaxially disposed with the sleeve 70 to reciprocate, that is, pressing During the movement, the head 80 is always coaxial with the molded inner tube 14 to prevent the indenter 80 from being eccentric, so that the concentricity of the molded tube is higher.

Of course, the reciprocating motion of the oil inlet and the oil outlet in the cylinder 40 and thus the piston 60 is consistent with the driving principle of the hydraulic cylinder in the prior art, and is not repeated here. In addition, the pipe base may be fixed to the cylinder block 40 by screws, or may be fixed by welding.

Further, the forming apparatus 10 further includes a discharging channel, one end of the discharging channel is formed as a feeding end, and the other end of the discharging channel is formed as a discharging end. The inner diameter of the feeding end gradually increases from being away from the discharging end to being closer to the discharging end; the discharging end is fixed on the lower hopper 15 and communicates with the lower hopper 15. When in use, the feeding end can be connected with the outlet of the external screw feeder. In this way, the material conveyed by the screw feeder can enter the feeding channel 13 through the feeding end and be introduced into the lower hopper 15 through the discharging end. And because the inner diameter of the feeding end of the feeding channel gradually increases from away from the discharging end to close to the discharging end, so when feeding at the feeding end, the diameter of the discharging must be larger than the diameter of the feeding, reducing the possibility of blockage. In order to smoothly cut the material.

More specifically, in this embodiment, a wedge-shaped unloading trough that penetrates the unloading channel may be provided at the feeding end, and the inner diameter of the wedge-shaped unloading trough gradually increases from being away from the discharging end to being closer to the discharging end. That is, the feed end can pass through the wedge-shaped guide, which is convenient for processing and the guide is smooth.

Of course, the above-mentioned feed end can also be provided in a conical shape, and a structure with a small inlet and a large outlet can also be formed. In addition, by setting the inner wall of the feed end as an inclined surface, the above-mentioned structure with a small inlet and a large outlet can also be formed.

Further, a blowing port may be provided on one side of the feeding end, and the blowing port is used to communicate with an external air supply device. In use, if the structure of the feeding end mentioned above still has a special situation of material blocking, at this time, The high-pressure gas provided by the air supply device can be introduced through the air blowing port, and the blocked material at the feeding end is dispersed by the air pressure, so that the discharging channel is smooth and the continuous production of the pipe is facilitated.

Further, the pipe cutting device 30 in this embodiment includes two cutting blades 31 and two cutting blade driving mechanisms 32, and the two cutting blades 31 can approach each other or away from each other in the radial direction of the body, and the two cutting blades The space between 31 forms a cutting channel, and the cutting channel communicates with the tube sticking channel 225 below. Each cutting blade driving mechanism 32 is used to drive each cutting blade 31 to move in a radial direction of the body. In this way, the tubes can be output downward into the cutting channel after the stickers are stuck in the tube channel 225, so that the two cutting blade driving mechanisms 32 simultaneously drive the two cutting blades 31 close to each other, and the cutting of the tube components in the cutting channel can be completed.

It should be noted that, the cutting blade 31 edge of the cutting blade 31 described above may be an arc surface matching the arc of the outer surface of the pipe, and the cutting effect is better. In addition, the cutting blade driving mechanism 32 can use an air cylinder, and the driving process is relatively stable.

In addition, the above-mentioned pipe cutting device 30 may also be implemented by a rotating cutting blade 31. By providing a motor on the machine body, the motor drives the cutting blade 31 to rotate one turn in the circumferential direction of the tube to complete the cutting of the tube.

The above embodiments are only preferred embodiments of the present invention, and the scope of protection of the present invention cannot be limited by this. Any non-substantial changes and replacements made by those skilled in the art based on the present invention belong to The claimed scope of the utility model.

Claims

A pipe-making machine, comprising:

Body

Forming device, which is installed on the body and used for forming pipe fittings; the forming device is provided with a forming cavity;

Sticker device. The sticker device includes a pipe rack and at least three sticker mechanisms. The pipe is mounted on the rack and is located below the molding device. The pipe rack is provided with a through hole that communicates with the outlet of the molding cavity and allows the pipe to pass through; A sticker mechanism is distributed on the pipe frame and is spaced around the central axis of the through hole at a circumferential interval; at least three sticker mechanisms collectively surround a pipe sticking channel communicating with the through hole; the sticker mechanism is used to attach an adhesive sticker to On the outer wall of the tube;

The pipe fitting cutting device is installed on the machine body and located below the pipe rack, and is used for cutting the pipe fitting output from the pipe sticking channel.
The pipe making machine according to claim 1, characterized in that: the sticker mechanism comprises a paper roll and a guide roller assembly; the paper roll is pivotally connected to the pipe frame and used for rolling an adhesive sticker; the guide roller assembly is pivotally connected to the pipe frame The sticky sticker on the paper roll is used to guide the paper roll to rotate on the outer wall of the tube.
The pipe making machine according to claim 2, wherein the guide roller assembly comprises a first guide roller and a second guide roller, the first guide roller is pivotally connected to the pipe frame, and the first guide roller is used to pass through the pipe. A sticker gap is formed behind the through hole from the outer wall of the tube; a second guide roller is pivotally connected to the pipe frame and is located between the paper roll and the first guide roller, and the second guide roller is used to output around the paper roll The adhesive sticker and guide the adhesive sticker into the sticker gap.
The pipe making machine according to claim 1, characterized in that: the forming device comprises a lower hopper, a rotating member, an indenter, and an indenter driving mechanism, and the forming cavity is in communication with the bottom end of the lower hopper; Driven by the driving mechanism of the indenter, it moves towards the bottom end of the lower hopper to press the material in the lower hopper into the molding cavity. The rotating part includes a mounting seat and a plurality of blades. The head is pivotally matched; multiple blades are spaced circumferentially around the central axis of the mounting seat.
The pipe making machine according to claim 4, characterized in that the molding device further comprises a molding outer tube, a molding inner tube, and a heating tube, the heating tube is passed through the molding inner tube, and the molding outer tube is sheathed outside the molding inner tube; molding The inner wall of the outer tube is spaced from the outer wall of the molded inner tube to form the molding cavity.
The pipe making machine according to claim 5, wherein the molding device further comprises a molding inner tube blowing mechanism, and the molding inner tube blowing mechanism includes a plurality of first blowing channels, a plurality of first exhaust grooves, and The first air blowing channel is opened in the wall of the inner tube and extends along the axial direction of the inner tube; the plurality of first air blowing channels surround the central axis of the inner tube; The circumference is distributed at intervals; the plurality of first exhaust grooves are provided on the outer wall of the molded inner tube corresponding to each first blowing channel; and the air inlet joint is used to communicate with the first blowing channel.
The pipe making machine according to claim 6, wherein the molding device further comprises a molding outer tube blowing mechanism, and the molding outer tube blowing mechanism includes a plurality of second air blowing channels, a plurality of second exhaust grooves, and The second air blowing channel is opened in the wall of the molded outer tube and extends along the axial direction of the molded outer tube; a plurality of second air blowing channels surround the central axis of the molded outer tube The circumference is distributed at intervals; the plurality of second exhaust grooves are provided on the inner wall of the molded outer tube corresponding to each second blowing channel; and the air inlet hole is used to communicate with the second blowing channel.
The pipe making machine according to claim 5, wherein the indenter driving mechanism comprises a cylinder body, a piston, and an indenter, and the molded inner tube passes through the cylinder body; and the top end of the molded inner tube protrudes from the top end of the cylinder body. The bottom end of the molded inner tube protrudes from the bottom end of the cylinder body through a pipe seat; the sleeve on the outer surface of the molded inner tube is provided with a sleeve; the sleeve is coaxially disposed with the molded inner tube; The piston is sleeved on the outer surface of the sleeve and is movably connected to the cylinder body; the indenter is sleeved on the outer surface of the part of the inner tube protruding from the bottom end of the cylinder body and is fixedly connected to the bottom end of the sleeve; the indenter is coaxial with the sleeve Settings.
The pipe making machine according to claim 5, characterized in that the forming device further comprises a feeding channel, one end of the feeding channel is formed as a feeding end, and the other end of the feeding channel is formed as a discharging end; the inner diameter of the feeding end The distance from the discharge end to the discharge end gradually increases; the discharge end is fixed on the lower hopper and communicates with the lower hopper.
The pipe making machine according to claim 1, characterized in that: the pipe cutting device comprises two cutting knives and two cutting knives driving mechanisms, and the two cutting knives can approach each other or move away from each other in the radial direction of the machine body; The intervals between the blades form a cutting channel that is in communication with the lower part of the tube sticking channel; each cutting blade driving mechanism is used to drive each cutting blade to move in a radial direction of the body.