CN111619037B

CN111619037B - Utilize multiple type of plastic tubing former of waste plastic melting regeneration

Info

Publication number: CN111619037B
Application number: CN202010514940.8A
Authority: CN
Inventors: 吴博文
Original assignee: Yongkang Benyuan Plastic Products Co ltd
Current assignee: Hengyang Qili Plastic Products Co.,Ltd.
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2020-12-04
Anticipated expiration: 2040-06-08
Also published as: CN111619037A

Abstract

The invention discloses a multi-type plastic pipe forming device by utilizing waste plastic to melt and regenerate, which comprises a working box and an auxiliary box body, wherein waste plastic pieces are placed in a stirring cavity of the device and are cleaned by a stirring cleaning mechanism, dirt is removed, the waste plastic pieces enter a melting cavity to be primarily melted, a semi-molten plastic solid fluid is introduced into a spiral conveying cavity and is conveyed to an extrusion cavity by the spiral conveying mechanism, plastic pipes with different wall thicknesses and inner diameters are formed under the action of wall thickness control columns and pipe wall forming cavities with different specifications on a ring wheel with holes, the plastic pipes can be used for common daily use, plastic resources are greatly saved, and the beneficial effect of protecting the environment is well achieved.

Description

Utilize multiple type of plastic tubing former of waste plastic melting regeneration

Technical Field

The invention relates to the technical field of plastic molding equipment, in particular to a molding device for various plastic pipes by utilizing waste plastic melting regeneration.

Background

The plastic is a very common material in human life, has the aspects of our life, and also means a large waste amount behind the large using amount, and as is known, most of the plastic is long in time for degrading in soil after being discarded, even can not be degraded, and has large environmental pollution.

Disclosure of Invention

The invention aims to solve the technical problem of providing a molding device for various plastic pipes by utilizing waste plastic to be melted and regenerated, and the molding device overcomes the problems.

The invention is realized by the following technical scheme.

The invention relates to a molding device for various plastic pipes regenerated by melting waste plastics, which comprises a working box and an auxiliary box body, wherein a stirring cavity is arranged in the working box, the upper wall of the stirring cavity is upwards opened and provided with a plastic inlet, a stirring and cleaning mechanism is arranged in the stirring cavity and used for cleaning relatively clean waste plastics put in from the plastic inlet, the lower wall of the stirring cavity is downwards opened and provided with a communicating cavity, the lower side of the stirring cavity is provided with a melting cavity, the left side of the stirring cavity is provided with a first transmission cavity, a cleaning valve mechanism is arranged in the first transmission cavity, a valve plate in the cleaning valve mechanism can control the communication between the communicating cavity and the melting cavity, the lower wall of the melting cavity is internally provided with a melting heating sheet, the lower wall of the melting cavity is downwards opened and provided with a feed port, the lower side of the melting cavity is provided with a spiral conveying cavity, and the right side of the melting cavity, the feeding valve plate in the temperature sensing valve mechanism can be opened according to the temperature change in the melting cavity so that the melting cavity is communicated with the spiral conveying cavity, the spiral conveying cavity is internally provided with a spiral conveying mechanism, the spiral conveying mechanism comprises a spiral motor arranged in the working box, the right end of the spiral motor is in power connection with a spiral shaft, the spiral shaft is fixedly provided with a spiral blade, the right side of the spiral conveying cavity is fixedly provided with an extruded material block, the right side of the spiral conveying cavity is provided with an extrusion cavity towards the right opening, the outer surface of the right end of the working box is rotatably provided with a central wheel shaft, the central wheel shaft is fixedly provided with a central wheel, the outer circular surface of the central wheel is fixedly provided with a perforated ring wheel, wall thickness control columns and pipe wall forming cavities with different specifications and sizes are distributed on the perforated ring wheel, and the extrusion cavity is communicated with the, the molten plastic in the spiral conveying cavity can enter the pipe wall forming cavity through the extrusion cavity and the feeding cavity so as to form the plastic pipe, and the central wheel shaft can be rotated according to the requirements of the thickness and the inner diameter of the tube wall and the like so as to lead the different wall thickness control columns and the tube wall forming cavities to correspond to the extrusion cavities, a pressing mechanism is arranged in the auxiliary box body and can press the central wheel to be fixed, a sending cavity is arranged in the auxiliary box body, a third pulley shaft and a fourth pulley shaft are rotatably arranged between the front wall and the rear wall of the sending cavity, and a third belt wheel and a fourth belt wheel are fixedly arranged on the third belt wheel shaft and the fourth belt wheel shaft, the third belt wheel and the fourth belt wheel are in transmission connection through a delivery belt, the plastic pipe formed in the pipe wall forming cavity is delivered to the delivery cavity rightwards, and the plastic pipe is conveyed to the outside rightwards on the delivery belt.

Further, the cleaning valve mechanism comprises a double-shaft motor fixedly arranged in the first transmission cavity, the left end of the double-shaft motor is in power connection with a left transmission shaft, a second belt wheel is fixedly arranged on the left transmission shaft, a first bevel gear shaft is rotatably arranged between the left wall and the right wall of the first transmission cavity, a first belt wheel in transmission connection with the second belt wheel through a transmission belt is fixedly arranged on the first bevel gear shaft, a second transmission cavity is arranged at the lower side of the stirring cavity, a valve gear shaft is rotatably arranged on the rear wall of the second transmission cavity, a valve gear and a second bevel gear are fixedly arranged on the valve gear shaft, a first bevel gear meshed with the second bevel gear is fixedly arranged at the right end of the first bevel gear shaft, a valve spring cavity is arranged in the left wall of the second transmission cavity, and the valve plate meshed with the valve gear is slidably arranged in the valve spring cavity, the left wall of the valve spring cavity is connected with the valve plate through a valve spring.

Further, stirring wiper mechanism including rotate set up in the (mixing) shaft of the left and right walls in stirring chamber, the fixed stirring piece that is equipped with on the (mixing) shaft, the (mixing) shaft left end power connect in the double-shaft motor right-hand member, the fixed waterproof ring that is equipped with on the (mixing) shaft and pastes tightly the left and right walls in stirring chamber, stirring chamber left side wall downside fixedly connected with drain pipe, be equipped with the drain valve in the drain pipe.

Furthermore, the temperature-sensing valve mechanism comprises a temperature-sensing cavity arranged on the right side of the melting cavity and a top pressure spring cavity, the temperature sensing cavity is filled with thermal expansion gas, the temperature sensing slide block and the upper connecting rod slide block are arranged in the temperature sensing cavity in a sliding manner, the temperature-sensing slide block is connected with the upper wall of the temperature-sensing cavity through a compression spring, the temperature-sensing slide block is connected with the upper connecting rod slide block through a connecting rod, the lower wall of the top pressure spring cavity is provided with a lower connecting rod slide block in a sliding way, the lower connecting rod slide block is connected with the right wall of the top pressure spring cavity through a top pressure spring, the lower connecting rod sliding block and the upper connecting rod sliding block are hinged with a connecting rod at the front ends thereof, the lower connecting rod sliding block and the upper connecting rod sliding block are connected through the connecting rod, the left end of the lower connecting rod sliding block is fixedly provided with a feeding valve plate, a feeding valve cavity is arranged in the working box, and the feeding valve plate is arranged in the lower wall of the jacking spring cavity and the feeding valve cavity in a sliding mode.

Furthermore, the compressing mechanism comprises a compressing cylinder arranged in the auxiliary box body, the compressing cylinder is fixedly connected with a compressing support through a piston rod at the left end, and an elastic ring is fixedly arranged at the left end of the compressing support.

Further, a chemical box is fixedly arranged on the outer surface of the upper end of the working box, a chemical outlet cavity communicated with the chemical box and the stirring cavity is formed in the working box, a chemical valve is arranged in the chemical outlet cavity, a water inlet pipe is arranged in the working box, and a water inlet valve is fixedly arranged on the left side in the water inlet pipe.

Further, the fixed water tank that is equipped with of auxiliary tank body upside, water tank left end fixedly connected with connects the water pipe, connect the fixed water spray gondola water faucet that is equipped with of water pipe lower extreme.

The invention has the beneficial effects that: the waste plastic pieces are placed in the stirring cavity of the plastic pipe extruding machine to be cleaned by the stirring cleaning mechanism, dirt is removed, the waste plastic pieces enter the melting cavity to be primarily melted, semi-melted plastic solid fluid is guided into the spiral conveying cavity and conveyed to the extruding cavity by the spiral conveying mechanism, plastic pipes with different wall thicknesses and inner diameters are formed under the action of wall thickness control columns and pipe wall forming cavities of different specifications on the ring wheel with holes, the plastic pipes can be used for general daily use, plastic resources are greatly saved, and the beneficial effect of protecting the environment is achieved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view taken at "A" in FIG. 1;

FIG. 3 is a schematic view of the structure at "E-E" in FIG. 2;

FIG. 4 is an enlarged schematic view at "B" in FIG. 1;

FIG. 5 is an enlarged schematic view taken at "C-C" in FIG. 1;

fig. 6 is an enlarged schematic view at "D" in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-6, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

With reference to fig. 1-6, the molding equipment for multiple types of plastic pipes by utilizing melting regeneration of waste plastics comprises a work box 10 and an auxiliary box body 47, wherein a stirring cavity 29 is arranged in the work box 10, a plastic inlet 23 is arranged at the upward opening of the upper wall of the stirring cavity 29, a stirring cleaning mechanism 300 is arranged in the stirring cavity 29, the stirring cleaning mechanism 300 is used for cleaning relatively clean waste plastics put in from the plastic inlet 23, a communicating cavity 31 is arranged at the downward opening of the lower wall of the stirring cavity 29, a melting cavity 32 is arranged at the lower side of the stirring cavity 29, a first transmission cavity 12 is arranged at the left side of the stirring cavity 29, a cleaning valve mechanism 200 is arranged in the first transmission cavity 12, a valve plate 59 in the cleaning valve mechanism 200 can control the communication between the communicating cavity 31 and the melting cavity 32, and a melting heating sheet 37 is arranged in the lower wall of the melting cavity 32, a feed inlet 36 is formed in the lower wall of the melting cavity 32 and opens downwards, a spiral conveying cavity 45 is formed in the lower side of the melting cavity 32, a temperature-sensitive valve mechanism 400 is arranged on the right side of the melting cavity 32, a feed valve plate 72 in the temperature-sensitive valve mechanism 400 can be opened according to the temperature change in the melting cavity 32, so that the melting cavity 32 is communicated with the spiral conveying cavity 45, a spiral conveying mechanism 500 is arranged in the spiral conveying cavity 45, the spiral conveying mechanism 500 comprises a spiral motor 33 arranged in the working box 10, a spiral shaft 34 is connected to the right end of the spiral motor 33 in a power mode, a spiral blade 35 is fixedly arranged on the spiral shaft 34, an extruding material block 66 is fixedly arranged on the right side of the spiral conveying cavity 45, an extruding cavity 67 is formed in the right side of the spiral conveying cavity 45 and opens towards the right, a central wheel shaft 41 is arranged on the outer surface of the right end of the, the outer circular surface of the central wheel 39 is fixedly provided with a perforated ring wheel 38, the perforated ring wheel 38 is circumferentially provided with wall thickness control columns 69 and tube wall forming cavities 71 with different specifications and sizes, the extrusion cavity 67 is communicated with the tube wall forming cavity 71 through a feeding cavity 68, molten plastics in the spiral conveying cavity 45 can enter the tube wall forming cavity 71 through the extrusion cavity 67 and the feeding cavity 68 so as to form a plastic tube, the central wheel shaft 41 can be rotated according to requirements such as the thickness and the inner diameter of the tube wall, so that the different wall thickness control columns 69 and the different tube wall forming cavities 71 correspond to the extrusion cavity 67, a pressing mechanism 600 is arranged in the auxiliary box body 47, the pressing mechanism 600 can press the central wheel 39 to be fixed, a sending cavity 54 is arranged in the auxiliary box body 47, and a third belt wheel shaft 52 and a fourth belt wheel shaft 55 are rotatably arranged between the front wall and the rear wall of the sending cavity 54, the third pulley shaft 52 and the fourth pulley shaft 55 are fixedly provided with a third pulley 53 and a fourth pulley 56, the third pulley 53 and the fourth pulley 56 are in transmission connection through a delivery belt 51, the plastic pipe molded in the pipe wall molding cavity 71 is delivered to the right in the delivery cavity 54, and the plastic pipe is delivered to the outside on the delivery belt 51.

Advantageously, the cleaning valve mechanism 200 includes a double-shaft motor 18 fixedly disposed in the first transmission cavity 12, a left transmission shaft 15 is power-connected to a left end of the double-shaft motor 18, a second pulley 16 is fixedly disposed on the left transmission shaft 15, a first bevel gear shaft 13 is rotatably disposed between left and right walls of the first transmission cavity 12, a first pulley 17 drivingly connected to the second pulley 16 through a transmission belt 14 is fixedly disposed on the first bevel gear shaft 13, a second transmission cavity 61 is disposed at a lower side of the stirring cavity 29, a valve gear shaft 63 is rotatably disposed on a rear wall of the second transmission cavity 61, a valve gear 64 and a second bevel gear 65 are fixedly disposed on the valve gear shaft 63, a first bevel gear 62 meshed with the second bevel gear 65 is fixedly disposed at a right end of the first bevel gear shaft 13, a valve spring cavity 57 is disposed in a left wall of the second transmission cavity 61, the valve plate 59 meshed with the valve gear 64 is arranged in the valve spring cavity 57 in a sliding mode, and the left wall of the valve spring cavity 57 is connected with the valve plate 59 through the valve spring 58.

Beneficially, stirring wiper mechanism 300 includes (mixing) shaft 28 that sets up in the left and right walls of stirring chamber 29 rotates, stirring shaft 28 is last to be fixed and is equipped with stirring piece 27, stirring shaft 28 left end power connect in the right-hand member of double-shaft motor 18, stirring shaft 28 is last to be fixed and is equipped with the waterproof ring 26 that pastes tight the left and right walls of stirring chamber 29, stirring chamber 29 left side wall downside fixedly connected with drain pipe 11, be equipped with drain valve 84 in the drain pipe 11 waste plastics wash the back water and the medicament waste liquid in the stirring chamber 29 and discharge from in the drain pipe 11 work box 10.

Beneficially, the temperature-sensing valve mechanism 400 includes a temperature-sensing cavity 77 and a top pressure spring cavity 76 which are arranged on the right side of the melting cavity 32, the temperature-sensing cavity 77 is filled with thermal expansion gas, a temperature-sensing slider 79 and an upper link slider 82 are slidably arranged in the temperature-sensing cavity 77, the temperature-sensing slider 79 and the upper wall of the temperature-sensing cavity 77 are connected through a compression spring 78, the temperature-sensing slider 79 and the upper link slider 82 are connected through a connecting rod 81, a lower link slider 74 is slidably arranged on the lower wall of the top pressure spring cavity 76, the lower link slider 74 and the right wall of the top pressure spring cavity 76 are connected through a top pressure spring 75, the lower link slider 74 and the upper link slider 82 are hinged with a connecting rod 73 at the front end, the lower link slider 74 and the upper link slider 82 are connected through the connecting rod 73, and a feeding valve plate 72 is fixedly arranged at the left end of the lower link slider 74, a feeding valve cavity 83 is arranged in the working box 10, and the feeding valve plate 72 is slidably arranged in the lower wall of the top pressure spring cavity 76 and the feeding valve cavity 83.

Advantageously, the pressing mechanism 600 includes a pressing cylinder 46 disposed in the auxiliary box 47, the pressing cylinder 46 is fixedly connected with a pressing bracket 43 through a piston rod at the left end, and an elastic ring 42 is fixedly disposed at the left end of the pressing bracket 43.

Beneficially, a chemical tank 19 is fixedly arranged on the outer surface of the upper end of the working tank 10, a chemical outlet cavity 21 communicating the chemical tank 19 with the stirring cavity 29 is arranged in the working tank 10, a chemical valve 22 is arranged in the chemical outlet cavity 21, a water inlet pipe 24 is arranged in the working tank 10, and a water inlet valve 25 is fixedly arranged on the left side in the water inlet pipe 24.

Beneficially, the auxiliary box body 47 is fixedly provided with a water tank 44 at the upper side, the left end of the water tank 44 is fixedly connected with a connecting water pipe 48, a water spraying shower head 49 is fixedly arranged at the lower end of the connecting water pipe 48, and the water spraying shower head 49 is used for spraying cooling water to enable the plastic pipe which is just extruded to be rapidly cooled and formed.

The working steps are as follows: in the initial state, all valves in the equipment are in a closed state; a proper amount of clean waste plastic pieces without excessive dirt are put into the plastic inlet 23, the medicament valve 22 and the water inlet valve 25 are opened, and medicament and water are respectively filled into the stirring cavity 29, so that the waste plastic pieces can be fully cleaned by the medicament; the double-shaft motor 18 is started, only the stirring shaft 28 rotates to drive the stirring sheet 27 to stir the plastic parts in the stirring cavity 29, so that dirt on the plastic parts falls off, the drain valve 84 is opened, the water and the medicament solution in the stirring cavity 29 are discharged from the drain pipe 11, and the double-shaft motor 18 stops after the water and the medicament solution are completely discharged; when the double-shaft motor 18 is started, only the left transmission shaft 15 rotates, and the valve plate 59 is driven to move leftwards by the second belt wheel 16, the transmission belt 14, the first belt wheel 17, the first bevel gear shaft 13, the first bevel gear 62, the second bevel gear 65, the valve gear shaft 63 and the valve gear 64, so that the communication cavity 31 is communicated with the melting cavity 32, and the plastic parts in the stirring cavity 29 fall into the melting cavity 32 through the communication cavity 31;

the melting heating plate 37 is started to melt the plastic part in the melting chamber 32, and after the plastic part in the melting chamber 32 is substantially melted, the thermal expansion gas in the temperature sensing chamber 77 overcomes the pulling force of the compression spring 78 to push the temperature sensing slider 79 to move downwards, and the connecting rod 81, the upper link slider 82 and the connecting rod 73 drive the lower link slider 74 to move rightwards, so that the feeding valve plate 72 is driven to move rightwards in the feeding valve chamber 83, so that the melting chamber 32 is communicated with the spiral conveying chamber 45; the semi-molten plastic in the melting cavity 32 enters the spiral conveying cavity 45 through the feeding hole 36, the spiral motor 33 is started, the spiral shaft 34 rotates, the semi-molten plastic is driven by the spiral blade 35 to be conveyed rightwards, and the semi-molten plastic can be further melted by generating friction heat with the inner wall of the spiral conveying cavity 45 when the spiral blade 35 rotates; selecting the inner diameter and the wall thickness of a plastic pipe to be molded, rotating the ring wheel 38 with the hole, aligning the corresponding wall thickness control column 69 and the pipe wall molding cavity 71 with the extrusion cavity 67, starting the pressing cylinder 46, pushing the pressing bracket 43 and the elastic ring 42 to press the central wheel 39 through a piston rod at the left end, and ensuring that the central wheel does not shake; molten plastic in the auger delivery chamber 45 gets into extrusion chamber 67, through feeding chamber 68 gets into pipe wall becomes die cavity 71 become the molding in the pipe wall becomes die cavity 71, receives follow-up molten plastic's extrusion is seen off to the right in the auger delivery chamber 45, cooling water in the water tank 44 is followed carry to in the connecting water pipe 48 water spray shower 49, water spray shower 49 blowout cooling water smoke makes just fashioned plastic tubing cool off the shaping fast, and the plastic tubing after the shaping is taken the right movement is seen off on seeing off belt 51.

Those skilled in the art can understand the disclosure of the present invention and implement the present invention, and the protection scope of the present invention is not limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an utilize multiple type of plastic tubing former of old and useless plastics melting regeneration, includes work box and auxiliary box body, its characterized in that: a stirring cavity is arranged in the working box, a plastic inlet is arranged on the upper wall of the stirring cavity in an upward opening manner, a stirring cleaning mechanism is arranged in the stirring cavity and used for cleaning relatively clean waste plastics put in from the plastic inlet, a communicating cavity is arranged on the lower wall of the stirring cavity in a downward opening manner, a melting cavity is arranged on the lower side of the stirring cavity, a first transmission cavity is arranged on the left side of the stirring cavity, a cleaning valve mechanism is arranged in the first transmission cavity, a valve plate in the cleaning valve mechanism can control the communication between the communicating cavity and the melting cavity, a melting heating sheet is arranged in the lower wall of the melting cavity, a feeding hole is arranged on the lower wall of the melting cavity in a downward opening manner, a spiral conveying cavity is arranged on the lower side of the melting cavity, a temperature sensing valve mechanism is arranged on the right side of the melting cavity, and the feeding valve plate in the temperature sensing valve mechanism can be opened according to the temperature change in the melting cavity, the spiral conveying cavity is internally provided with a spiral conveying mechanism, the spiral conveying mechanism comprises a spiral motor arranged in the working box, the right end of the spiral motor is in power connection with a spiral shaft, the spiral shaft is fixedly provided with spiral blades, the right side of the spiral conveying cavity is fixedly provided with an extrusion material block, the right side of the spiral conveying cavity is provided with an extrusion cavity towards the right opening, the outer surface of the right end of the working box is rotatably provided with a central wheel shaft, the central wheel shaft is fixedly provided with a central wheel, the outer circular surface of the central wheel is fixedly provided with a porous ring wheel, wall thickness control columns and wall forming cavities with different specifications and sizes are distributed on the porous ring wheel in the periphery, the extrusion cavity is communicated with the wall forming cavities through a feeding cavity, and molten plastic in the spiral conveying cavity can pass through the extrusion cavity and the feeding cavity to enter the, the center wheel shaft can be rotated according to the requirements of the wall thickness, the inner diameter and the like of the pipe wall, so that different wall thickness control columns and different pipe wall forming cavities correspond to the extrusion cavity, a pressing mechanism is arranged in the auxiliary box body, the center wheel can be pressed by the pressing mechanism to be fixed, a sending cavity is arranged in the auxiliary box body, a third pulley shaft and a fourth pulley shaft are rotatably arranged between the front wall and the rear wall of the sending cavity, a third pulley shaft and a fourth pulley shaft are fixedly arranged on the third pulley shaft and the fourth pulley shaft, the third pulley shaft and the fourth pulley shaft are in transmission connection through a sending belt, a plastic pipe formed in the pipe wall forming cavity is sent to the sending cavity rightwards, and the plastic pipe is sent to the outside rightwards on the sending belt.

2. The molding equipment of various plastic pipes regenerated by melting waste plastics, as claimed in claim 1, wherein: the cleaning valve mechanism comprises a double-shaft motor fixedly arranged in the first transmission cavity, the left end of the double-shaft motor is in power connection with a left transmission shaft, a second belt wheel is fixedly arranged on the left transmission shaft, a first bevel gear shaft is rotatably arranged between the left wall and the right wall of the first transmission cavity, a first belt wheel in transmission connection with the second belt wheel through a transmission belt is fixedly arranged on the first bevel gear shaft, a second transmission cavity is arranged at the lower side of the stirring cavity, a valve gear shaft is rotatably arranged on the rear wall of the second transmission cavity, a valve gear and a second bevel gear are fixedly arranged on the valve gear shaft, a first bevel gear meshed with the second bevel gear is fixedly arranged at the right end of the first bevel gear shaft, a valve spring cavity is arranged in the left wall of the second transmission cavity, and the valve plate meshed with the valve gear is arranged in the valve spring cavity in a sliding, the left wall of the valve spring cavity is connected with the valve plate through a valve spring.

3. The molding equipment for various plastic pipes regenerated by melting waste plastics, as claimed in claim 2, wherein: stirring wiper mechanism including rotate set up in the (mixing) shaft of stirring chamber left and right walls, the fixed stirring piece that is equipped with on the (mixing) shaft, (mixing) shaft left end power connect in the double-shaft motor right-hand member, the fixed waterproof ring that is equipped with on the (mixing) shaft and pastes tightly the wall about the stirring chamber, stirring chamber left side wall downside fixedly connected with drain pipe, be equipped with the drain valve in the drain pipe.

4. The molding equipment of various plastic pipes regenerated by melting waste plastics, as claimed in claim 1, wherein: the temperature-sensing valve mechanism comprises a temperature-sensing cavity and a top pressure spring cavity which are arranged on the right side of the melting cavity, thermal expansion gas is filled in the temperature-sensing cavity, a temperature-sensing slide block and an upper connecting rod slide block are arranged in the temperature-sensing cavity in a sliding manner, the temperature-sensing slide block is connected with the upper wall of the temperature-sensing cavity through a compression spring, the temperature-sensing slide block is connected with the upper connecting rod slide block through a connecting rod, a lower connecting rod slide block is arranged on the lower wall of the top pressure spring cavity in a sliding manner, the lower connecting rod sliding block is connected with the right wall of the top pressure spring cavity through a top pressure spring, the front ends of the lower connecting rod sliding block and the upper connecting rod sliding block are hinged with a connecting rod, the lower connecting rod sliding block is connected with the upper connecting rod sliding block through the connecting rod, a feeding valve plate is fixedly arranged at the left end of the lower connecting rod sliding block, and a feed valve cavity is arranged in the working box, and the feed valve plate is arranged in the lower wall of the top pressure spring cavity and the feed valve cavity in a sliding manner.

5. The molding equipment of various plastic pipes regenerated by melting waste plastics, as claimed in claim 1, wherein: the pressing mechanism comprises a pressing air cylinder arranged in the auxiliary box body, the pressing air cylinder is fixedly connected with a pressing support through a piston rod at the left end, and an elastic ring is fixedly arranged at the left end of the pressing support.

6. The molding equipment of various plastic pipes regenerated by melting waste plastics, as claimed in claim 1, wherein: the outer surface of the upper end of the working box is fixedly provided with a chemical box, a chemical outlet cavity communicated with the chemical box and the stirring cavity is formed in the working box, a chemical valve is arranged in the chemical outlet cavity, a water inlet pipe is arranged in the working box, and a water inlet valve is fixedly arranged on the left side in the water inlet pipe.

7. The molding equipment of various plastic pipes regenerated by melting waste plastics, as claimed in claim 1, wherein: the auxiliary box body is fixedly provided with a water tank on the upper side, the left end of the water tank is fixedly connected with a connecting water pipe, and the lower end of the connecting water pipe is fixedly provided with a water spraying shower head.