CN110039739B

CN110039739B - Rubber-plastic pipe production equipment and production process thereof

Info

Publication number: CN110039739B
Application number: CN201910291188.2A
Authority: CN
Inventors: 孙彩华; 王学范
Original assignee: Changle Friendship Plastic Polytron Technologies Inc
Current assignee: Changle Friendship Plastic Polytron Technologies Inc
Priority date: 2019-04-11
Filing date: 2019-04-11
Publication date: 2021-08-17
Anticipated expiration: 2039-04-11
Also published as: CN110039739A

Abstract

The invention provides rubber and plastic pipe production equipment which comprises a first extrusion device, a first water cooling device, a primary traction device, a crochet machine, a heating device, a second extrusion device, a second water cooling device, a secondary traction device, a code spraying device and an air blowing device, wherein the first extrusion device comprises a first co-extrusion die, a first extruder head and a second extruder head, the second extrusion device comprises a second co-extrusion die and a third extruder head, the first extruder head, the second extruder head and the third extruder head are all connected with an extruder, the primary traction device comprises a stopping mechanism, a first adjusting mechanism and a first driving mechanism, the secondary traction device comprises a bottom traction mechanism, a top traction mechanism, a second adjusting mechanism, a second driving mechanism and a steering traction mechanism, the rubber and plastic pipe production equipment has the advantages of freely adjusting the traction interval, having a wide application range, improving the quality of a rubber and plastic pipe, and the quality of the rubber and plastic pipe The integral mechanical strength and the distortion resistance ensure that the air pressure in the rubber and plastic pipe is stable and sufficient, the production efficiency is high, and the appearance is attractive.

Description

Rubber-plastic pipe production equipment and production process thereof

Technical Field

The invention relates to the technical field of rubber and plastic pipes, in particular to rubber and plastic pipe production equipment and a rubber and plastic pipe production process.

Background

Various rubber-plastic pipes are increasingly used in various industries, such as gas stove pipes used in homes, water pipes of water heaters and the like, have the characteristics of complete isolation of materials from water vapor, no water absorption, difficult combustion and no condensation, and are increasingly widely used in life. The production process of the rubber-plastic pipe comprises the following steps: the method comprises the following steps of firstly preparing a rubber and plastic raw material, secondly obtaining a rubber and plastic inner layer through a basic mechanism, thirdly forming a crocheted net layer on the outer surface of the rubber and plastic inner layer through a crocheting machine, fourthly uniformly forming an outer layer and a marking strip on the outer side of the three layers, and finally spraying characters to be sprayed on the marking strip.

The existing rubber-plastic pipe production equipment mainly has the following problems: the first is that most of the methods for wrapping the filling layer are to firstly produce the inner layer and then bond the filling layer on the outer side of the inner layer, and the wrapping mode is not firm enough and is not torsion-resistant, and the inner layer and the filling layer are easy to separate, thereby affecting the product quality; secondly, the existing rubber and plastic pipe production equipment adopts one end to blow air, and after a long distance of production, the air in the rubber and plastic pipe is not enough to blow the rubber and plastic completely, so that the crocheted net layer and the outer layer can not be completely and tightly attached to the surface of the rubber and plastic pipe filling layer; thirdly, the formed rubber-plastic pipe may rotate in the process of continuously moving backwards, but the position of the code spraying nozzle is fixed and unchanged, so that the rubber-plastic pipe cannot be accurately sprayed on the identification strip when code spraying is carried out, and the rubber-plastic pipe just sprayed with the codes rotates, so that characters are extremely easy to damage, and the rubber-plastic pipe is extremely unattractive.

Therefore, there is a need for a rubber and plastic pipe production apparatus that can solve the above problems.

Disclosure of Invention

The invention provides rubber and plastic pipe production equipment and a production process thereof, which have the characteristics of freely adjusting the traction distance, large application range, improvement on the quality, the integral mechanical strength and the distortion resistance of a rubber and plastic pipe, guarantee of stable and sufficient air blowing in the rubber and plastic pipe, high production efficiency of a product and attractive appearance.

The technical scheme of the invention is realized as follows:

the rubber-plastic pipe production equipment comprises a first extrusion device, a first water cooling device, a primary traction device, a crochet machine, a heating device, a second extrusion device, a second water cooling device, a secondary traction device, a code spraying device and an air blowing device, wherein the rubber-plastic pipe sequentially passes through the first extrusion device, the first water cooling device, the primary traction device, the crochet machine, the heating device, the second extrusion device, the second water cooling device, the secondary traction device, the code spraying device and the air blowing device;

the first extrusion device comprises a first fixed shell, a first extruder head, a first co-extrusion die, a second extruder head and a second fixed shell which are arranged in sequence, and the first extruder head and the second extruder head are both connected with an extruder;

the first water cooling device and the second water cooling device respectively comprise a water cooling tank which is horizontally arranged, the rubber tube penetrates through the water cooling tanks, and a plurality of water cooling tubes for cooling the rubber tube are arranged on each water cooling tank side by side;

the primary traction device comprises two first mounting frames which are arranged side by side, a stopping mechanism is arranged on each of the two first mounting frames, a first adjusting mechanism is arranged between each stopping mechanism and the first mounting frame, and a first driving mechanism is arranged between the two stopping mechanisms;

the heating device comprises a heating box which is horizontally arranged, the rubber-plastic pipe penetrates through the heating box, and two sides of the rubber-plastic pipe are respectively provided with a heating pipe which is parallel to the rubber-plastic pipe;

the second extrusion device comprises a second co-extrusion die which is horizontally arranged, a third extruder head is sleeved on the second co-extrusion die, and the third extruder head is connected with two extruders;

the secondary traction device comprises two second mounting frames which are arranged side by side, a bottom traction mechanism and a top traction mechanism which are arranged up and down are arranged on each second mounting frame in a sliding mode, a second adjusting mechanism is arranged between each top traction mechanism and the second mounting frame, a traction rod is obliquely and upwardly arranged at the rear end of each second mounting frame, a steering traction mechanism is arranged at the upper end of each traction rod, and a second driving mechanism is arranged between each steering traction mechanism and the two bottom traction mechanisms;

the code spraying device comprises a vertically arranged support frame, and a code spraying head arranged between the two top traction mechanisms is arranged on the support frame;

the air blowing device comprises an air blower communicated with the rubber pipe through a first air inlet pipe, a pressure reducer is installed on the first air inlet pipe, and a stop valve is installed at the joint of the first air inlet pipe and the rubber pipe.

As a preferred technical scheme, the first co-extrusion die comprises a horizontally arranged die tube, the front end of the die tube extends out of the first fixed shell and is connected with the air blower through a second air inlet pipe, an air blowing cavity penetrating through the die tube is arranged in the die tube, a first conical boss is arranged at the front end of the die tube, a first extrusion pipe and a second extrusion pipe are sleeved on the die tube, a first conical groove is arranged in the first extrusion pipe, the first conical boss is arranged in the first conical groove, a first flow channel is formed between the inner wall of the first conical groove and the outer wall of the first conical boss, a first extrusion gap is formed between the inner wall of the first extrusion pipe and the outer wall of the die tube, a second conical boss is arranged at the rear end of the first extrusion pipe, a second conical groove is arranged at the front end of the second extrusion pipe, the second conical boss is arranged in the second conical groove, a second flow channel is formed between the inner wall of the second conical groove and the outer wall of the second conical boss, and a second extrusion gap is formed between the inner wall of the second extrusion pipe and the outer wall of the die pipe.

As a preferred technical scheme, the first fixed shell and the first extruder head are both sleeved at the front end of the mold tube, an inner layer material inlet is commonly arranged on the side wall of the first extruder head and the side wall of the first fixed shell, the inner layer material inlet is communicated with the extruder for heating and stirring the inner layer material of the rubber plastic tube, a first annular material cavity communicated with the inner layer material inlet is arranged in the first extruder head, an annular inner layer material outlet communicated with the first annular material cavity is arranged on the inner side of the first extruder head, the inner layer material outlet is communicated with the first flow channel and the first extrusion gap, the second extruder head is sleeved at the rear end of the first extrusion tube, the second fixed shell is sleeved at the rear end of the second extrusion tube, a filling material inlet is commonly arranged on the side wall of the first extruder head and the side wall of the second fixed shell, the rubber and plastic pipe filling layer material extruding machine is characterized in that the filling layer material inlet is communicated with the extruding machine for heating and stirring the rubber and plastic pipe filling layer material, a second annular material cavity communicated with the filling layer material inlet is arranged in the second extruding machine head, an annular filling layer material outlet communicated with the second annular material cavity is arranged on the inner side of the second extruding machine head, and the filling layer material outlet is communicated with the second flow channel and the second extruding gap.

As a preferred technical scheme, each stop mechanism all includes a first carry over pinch rolls and a stop roll, each stop roll and corresponding first carry over pinch rolls are the setting from top to bottom, each both ends of stopping the roll are equallyd divide and are do not be provided with a slidable mounting in last first mount pad of first mount pad, each both ends of first carry over pinch rolls are equallyd divide and are do not be provided with a slip and be fixed in second mount pad on the first mount pad, each one end of first carry over pinch rolls all stretches out the second mount pad, each one end of first carry over pinch rolls all installs a first sprocket, first actuating mechanism still includes a driving motor, install a second sprocket on driving motor's the motor shaft, second sprocket and two mesh together on the first sprocket has first drive chain.

As a preferred technical scheme, each adjustment mechanism all includes the first lead screw of a vertical setting, each the lower extreme of first lead screw all rotate install in on the first mount pad, each the relevant position of first mounting bracket all is equipped with a screw hole, each first lead screw all passes through the screw hole passes first mounting bracket, each the upper end of first lead screw all stretches out first mounting bracket, each the upper end of first lead screw all is equipped with first rotation handle.

As a preferred technical scheme, the second is crowded mould altogether includes the third extrusion pipe fitting and the fourth extrusion pipe fitting that the rubber pipe passed in proper order, the one end of third extrusion pipe fitting is equipped with third toper boss, the one end of fourth extrusion pipe fitting is equipped with third toper recess, third toper boss inserts in the third toper recess, the outer wall of third toper boss with form the third runner between the inner wall of third toper recess, the inner wall of fourth extrusion pipe fitting with form the third extrusion clearance between the rubber pipe.

As a preferable technical proposal, the third extrusion machine head is sleeved at the rear end of the third extrusion pipe fitting, the third extruder head is internally provided with a marker strip material inlet which is communicated with the extruder for heating and stirring the marker strip material of the rubber plastic pipe, a marking strip material outlet communicated with the marking strip material inlet is arranged in the third extrusion pipe fitting, the third extruder head is also provided with an outer layer material inlet which is communicated with the extruder for heating and stirring the outer layer material of the rubber-plastic pipe, a third annular material cavity communicated with the outer layer material inlet is arranged in the third extruder head, and an annular outer layer material outlet communicated with the third annular material cavity is formed in the inner side of the third extruder head and communicated with the third flow channel and the third extrusion gap.

As a preferable technical scheme, each top traction mechanism and each bottom traction mechanism comprises a third mounting seat which is horizontally arranged, the front end of each third mounting seat is fixed with a fixed shaft through a fixed bolt, each fixed shaft is horizontally arranged and perpendicular to the third mounting seat, the rear end of each third mounting seat is rotatably provided with a second traction roller through a mounting bearing, each second traction roller is parallel to the first traction roller, each second traction roller and the corresponding fixed shaft are jointly wound with a traction belt, the rubber plastic pipe passes through the space between the two traction belts, each steering traction mechanism comprises a third traction roller which is parallel to the second traction roller, the inner side of each third traction roller is provided with a horizontal mounting rod, and two ends of each horizontal mounting rod are fixed with a vertical mounting rod, the rubber plastic pipe penetrates between the two vertical mounting rods.

As an optimal technical scheme, each second adjustment mechanism all includes one set up in being located the top fixing base on the third mount pad, each all rotate the second lead screw of installing a vertical setting on the fixing base, each be equipped with a screw hole on the second mounting bracket, each the second lead screw all passes the screw hole, each the upper end of second lead screw all stretches out the second mounting bracket, each the upper end of second lead screw all is equipped with a second twist grip.

As a preferable technical scheme, the second driving mechanism includes a second driving motor, the second traction roller located at the downstream is installed on a motor shaft of the second driving motor, each second traction roller is fixedly installed with a third sprocket, two third sprockets are engaged with a second driving chain together, the second traction roller located at the downstream is also fixedly installed with a fourth sprocket, the third traction roller is fixedly installed with a fifth sprocket, and the fifth sprocket and the fourth sprocket are engaged with a driving chain belt together.

The other technical scheme of the invention is realized as follows:

the production process of the rubber-plastic pipe comprises the following steps:

firstly, starting a blower, and introducing gas to two ends of the rubber tube through the first air inlet tube, the blowing cavity and the second air inlet tube.

Secondly, respectively putting materials of the rubber-plastic inner layer and the filling layer into two extruders connected with the first co-extrusion die, starting the extruders, respectively heating and stirring the materials of the rubber-plastic inner layer and the filling layer to enable the materials of the rubber-plastic inner layer and the filling layer to form a liquid state, wherein the rubber-plastic inner layer material in the extruders flows into a first annular material cavity through an inner layer material inlet of the first extruder head, then flows into a first extrusion gap through an inner layer material outlet and a first flow passage, the liquid inner layer material forms the rubber-plastic inner layer in the first extrusion gap, the formed rubber-plastic inner layer enters a second extrusion pipe fitting, the filling layer material of the other extruder flows into a second annular material cavity through a filling layer material inlet of the second extruder head, and then flows into the second extrusion gap through a filling layer material outlet and a second flow passage, and the liquid filling layer material wraps a filling layer on the outer side of the rubber-plastic inner pipe positioned in the second extrusion gap to complete the co-extrusion of the rubber-plastic inner layer and the filling layer.

And thirdly, the just-formed rubber and plastic tubes move backwards to enter a water cooling tank of the first water cooling device, and spray heads of all the water cooling tubes are over against the rubber and plastic tubes and carry out water cooling on the rubber and plastic tubes.

And fourthly, the cooled rubber and plastic pipe sequentially passes through the two stopping mechanisms, the stopping gap of the stopping mechanism positioned at the upstream is larger than the stopping gap of the stopping mechanism positioned at the downstream, when the rubber and plastic pipe passes through a position between the first traction roller and the stopping roller positioned at the upstream, the first traction roller and the stopping roller perform first air flow stopping on the air flow in the rubber and plastic pipe, and when the rubber and plastic pipe passes through a position between the first traction roller and the stopping roller positioned at the downstream, the first traction roller and the stopping roller perform second air flow stopping on the air flow in the rubber and plastic pipe.

And fifthly, the rubber and plastic pipe enters a crochet machine, and the crochet machine wraps a crochet net layer on the surface of the filling layer.

And sixthly, the rubber and plastic pipe enters the heating box, and the heating pipe is used for heating the rubber and plastic pipe, so that the crocheted net layer is tightly attached to the surface of the filling layer.

And step seven, the heated rubber and plastic pipe passes through a second co-extrusion die, firstly, the identification strip material is heated and stirred to form a liquid material, the liquid identification strip material forms an identification strip on the rubber and plastic pipe through an identification strip material inlet and an identification strip material outlet, meanwhile, the outer layer material is heated and stirred to form a liquid material, the liquid outer layer material flows into a third annular material cavity through an outer layer material inlet of a third extruder head, then flows into a third extrusion gap through an outer layer material outlet and a third flow channel, and the rubber and plastic outer layer is wrapped outside the crocheted net layer positioned in the third extrusion gap by the liquid outer layer material, so that the co-extrusion of the rubber and plastic outer layer and the identification strip is completed.

And eighthly, the completely molded rubber and plastic pipe enters a water cooling tank of a second water cooling device for water cooling, so that the temperature of the rubber and plastic pipe is reduced.

And step nine, the rubber and plastic pipe sequentially passes between two traction belts positioned at the upstream and between two traction belts positioned at the downstream, so that the rubber and plastic pipe is prevented from rotating in the transmission process, and the identification strip is ensured to be capable of being over against the spraying port all the time.

By adopting the technical scheme, the invention has the beneficial effects that:

the rubber and plastic pipe production equipment comprises a first extrusion device, a first water cooling device, a primary traction device, a crochet machine, a heating device, a second extrusion device, a second water cooling device, a secondary traction device, a code spraying device and an air blowing device, wherein the rubber and plastic pipe sequentially penetrates through the first extrusion device, the first water cooling device, the primary traction device, the crochet machine, the heating device, the second extrusion device, the second water cooling device, the secondary traction device, the code spraying device and the air blowing device.

When the device is used, the first step is to start the blower, and gas is introduced into the two ends of the rubber pipe through the first air inlet pipe, the blowing cavity and the second air inlet pipe, so that the rubber pipe can be fully blown in the whole production process all the time, and the smooth proceeding of all the working procedures is ensured.

The second step is that the materials of the rubber-plastic inner layer and the filling layer are respectively put into two extruders connected with the first co-extrusion die, the extruders are started, the two extruders respectively heat and stir the materials of the rubber-plastic inner layer and the filling layer to enable the materials of the rubber-plastic inner layer and the filling layer to form a liquid state, wherein the rubber-plastic inner layer material in the extruders flows into a first annular material cavity through an inner layer material inlet of the first extruder head and then flows into a first extrusion gap through an inner layer material outlet and a first flow passage, the liquid inner layer material forms the rubber-plastic inner layer in the first extrusion gap, the formed rubber-plastic inner layer enters a second extrusion pipe fitting, the filling layer material of the other extruder flows into a second annular material cavity through a filling layer material inlet of the second extruder head and then flows into a second extrusion gap through a filling layer material outlet and a second flow passage, the liquid filling layer material wraps the filling layer on the outer side of the rubber-plastic inner pipe located in the second extrusion gap, co-extrusion of the rubber-plastic inner layer and the filling layer is completed, the inner layer and the filling layer are produced and manufactured in a multi-layer co-extrusion mode, close fitting between the inner layer and the filling layer is guaranteed, the mechanical strength of the integral structure of the rubber-plastic pipe is improved, separation of the inner layer and the filling layer after multiple times of bending and twisting is avoided, and the distortion resistance of the rubber-plastic pipe is improved.

The third step is that the just-formed rubber and plastic pipe moves backwards and enters a water cooling tank of the first water cooling device, the spray heads of all the water cooling pipes are over against the rubber and plastic pipe and cool the rubber and plastic pipe, and the water cooling pipe is affected by the effects of expansion with heat and contraction with cold, so that the diameter of the filling layer is reduced, the filling layer is more closely attached to the surface of the rubber and plastic inner layer, the attaching strength of the rubber and plastic inner layer and the filling layer is improved, the mechanical strength of the integral structure of the rubber and plastic pipe is improved, and the separation of the inner layer and the filling layer after multiple times of bending and twisting is avoided.

The fourth step is that the cooled rubber-plastic pipe sequentially passes through two stopping mechanisms, the stopping gap of the stopping mechanism positioned at the upstream is larger than the stopping gap of the stopping mechanism positioned at the downstream, when the rubber-plastic pipe passes between a first traction roller and a stopping roller positioned at the upstream, the first traction roller and the stopping roller stop the airflow in the rubber-plastic pipe for the first time, when the rubber-plastic pipe passes between the first traction roller and the stopping roller positioned at the downstream, the first traction roller and the stopping roller stop the airflow in the rubber-plastic pipe for the second time, a motor shaft of a first driving motor drives a second chain wheel to rotate, the second chain wheel drives a first driving chain and two first chain wheels to rotate, thereby driving the two first traction rollers to rotate and continuously drive the rubber-plastic pipe to move backwards, thereby realizing the complete stopping of the airflow in the rubber-plastic pipe, and stopping the airflow in the inner layer twice, the rubber-plastic inner layer is prevented from being broken due to the fact that the rubber-plastic inner layer is simultaneously subjected to large internal tension and external extrusion force, and the rejection rate of the rubber-plastic pipe is reduced.

And fifthly, the rubber and plastic pipe enters the crocheting machine, the crocheting machine wraps a crocheting net layer on the surface of the filling layer, the crocheting net layer adopting the novel crocheting technology replaces a traditional crossed winding layer, so that the whole net structure has strong elastic restoring force, the anti-distortion strength of the rubber and plastic pipe is improved, the crocheting machine is suitable for long-distance liquid conveying, and the condition that the pipe body is folded or distorted is effectively reduced.

And fifthly, the rubber and plastic pipe enters the heating box, and the heating pipe is used for heating the rubber and plastic pipe, so that the crocheted net layer is tightly attached to the surface of the filling layer.

And a sixth step of enabling the heated rubber-plastic pipe to pass through a second co-extrusion die, firstly heating and stirring the identification strip material to form a liquid material, enabling the liquid identification strip material to form an identification strip on the rubber-plastic pipe through an identification strip material inlet and an identification strip material outlet, simultaneously heating and stirring the outer layer material to form a liquid material, enabling the liquid outer layer material to flow into a third annular material cavity through an outer layer material inlet of a third extruder head, then flowing into a third extrusion gap through an outer layer material outlet and a third flow channel, and wrapping a rubber-plastic outer layer on the outer side of the crocheted net layer in the third extrusion gap by the liquid outer layer material to complete co-extrusion of the rubber-plastic outer layer and the identification strip.

And the seventh step is that the completely formed rubber and plastic pipe enters a water cooling tank of a second water cooling device for water cooling, so that the temperature of the rubber and plastic pipe is reduced, the rubber and plastic outer layer is tightly attached to the outer side of the crocheted net layer according to the principle of thermal expansion and cold contraction, the separation of all functional layers of the rubber and plastic pipe after long-time use is avoided, and the quality of the rubber and plastic pipe is improved.

The eighth step is that the rubber-plastic pipe sequentially passes through the space between two traction belts positioned at the upstream and the space between two traction belts positioned at the downstream, so that the rubber-plastic pipe is prevented from rotating in the transmission process, the marking strip is ensured to be always opposite to the spraying head, the characters can be accurately sprayed on the accurate position of the marking strip, and the attractiveness of the rubber-plastic pipe is improved; and the motor shaft of the second driving motor rotates to drive the third chain wheel, the second driving chain, the fourth chain wheel and the driving chain belt to rotate, the second driving chain drives the other third chain wheel to rotate, so that the two traction belts positioned below rotate and continuously drive the rubber-plastic pipe to move backwards, the code spraying of the rubber-plastic pipe is continuously completed, meanwhile, the driving chain belt drives the fifth chain wheel and the third traction roller to rotate, the third traction roller drives the rubber-plastic pipe which is subjected to code spraying to continuously move backwards, the rubber-plastic pipe is automatically placed downwards in an annular shape after being turned by the third traction roller, the manufacturing and the production of the rubber-plastic pipe are completed, a worker only needs to cut the rubber-plastic pipe to a certain length, the worker does not need to finish finishing again, the labor intensity of the worker is reduced, and the production efficiency of the rubber-plastic pipe is improved.

Because a first adjusting mechanism is arranged between each stopping mechanism and the first mounting frame, when in use, a worker can freely adjust the gap between the first traction roller and the stopping roller according to rubber and plastic pipes of different types, if the diameter of the rubber and plastic pipe is larger or the pipe wall is thicker, the first rotating handle needs to be rotated, the first rotating handle drives the first lead screw to rotate and move upwards, and simultaneously drives the first mounting seat to move upwards, so that the gap between the first traction roller and the stopping roller can be adjusted to be larger, if the diameter of the rubber and plastic pipe is smaller, the first rotating handle needs to be rotated, the first rotating handle drives the first lead screw to rotate and move downwards, and simultaneously drives the first mounting seat to move downwards, so that the gap between the first traction roller and the stopping roller can be adjusted to be smaller, the rubber and plastic pipe production device can be suitable for the production needs of pipes of different types, thereby expanding the application range of the rubber and plastic pipe device, and simple structure, easy operation has reduced the cost that the company invested.

The air blowing device comprises an air blower communicated with the rubber plastic pipe through a first air inlet pipe, a pressure reducer is arranged on the first air inlet pipe, and the air blower blows air to the two ends of the rubber plastic pipe at the same time, so that the rubber plastic pipe can be fully blown all the time, the smooth and effective proceeding of each process is ensured, and the quality and the qualification rate of the rubber plastic pipe are improved; and steady voltage table and the decompression table on the pressure reducer can real-time reality rubber and plastic intraductal atmospheric pressure, if atmospheric pressure is crossed low or too high, just can control the how much of the gas of drum into through rotating the pressure regulating handle on the pressure reducer, guaranteed the stability of the intraductal atmospheric pressure of rubber and plastic, and can inflate the rubber and plastic pipe to suitable degree.

Because a second adjusting mechanism is arranged between each top traction mechanism and the second mounting frame, when in use, an operator can adjust the traction distance according to the pipe diameter of the rubber and plastic pipe to be produced, if the pipe diameter of the rubber and plastic pipe is large, only the second rotating handle needs to be operated to rotate, the second rotating handle drives the wire second rod to rotate, the rotation of the second screw rod drives the top traction mechanism to move upwards, thereby increasing the traction distance between the two traction belts, if the diameter of the rubber-plastic pipe is small, only the second rotating handle needs to be operated to rotate, the second rotating handle drives the second screw rod to rotate reversely, the rotation of the second screw rod drives the top traction mechanism to move downwards, thereby reduced two and pull the interval between the area, made the utility model discloses can satisfy the secondary of the rubber pipe of different models and pull the demand, and then enlarge the utility model discloses an application scope.

Drawings

In order to more clearly illustrate the embodiments of the present 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 present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a schematic view of the heating apparatus of FIG. 1;

FIG. 3 is a schematic view of the structure of a first extrusion apparatus according to the present invention;

FIG. 4 is a schematic view of a primary draft gear of the present invention;

FIG. 5 is a rear view of FIG. 4;

FIG. 6 is a schematic view of the structure of a second extrusion apparatus according to the present invention;

FIG. 7 is a schematic structural view of a secondary traction device according to the present invention;

fig. 8 is a side view of fig. 7.

FIG. 9 is a schematic view of the structure of the air blowing device of the present invention.

Wherein: 1. a first extrusion device; 2. a first water cooling device; 3. a primary traction device; 4. crochet machine; 5. a heating device; 6. a second extrusion device; 7. a second water cooling device; 8. a secondary traction device; 9. a code spraying device; 10. an air blowing device; 11. a first stationary housing; 12. a first extruder head; 13. a second extruder head; 14. a second stationary housing; 15. an extruder; 16. a water cooling tank; 17. a water-cooled tube; 18. a first mounting bracket; 19. a heating box; 20. heating a tube; 21. a third extruder head; 22. a second mounting bracket; 23. A draw bar; 24. a support frame; 25. spraying the wharf; 26. a first air inlet pipe; 27. a blower; 28. a pressure reducer; 29. a stop valve; 30. a mold tube; 31. an air blowing cavity; 32. a first tapered boss; 33. a first extruded tube; 34. a second extruded tube; 35. a first tapered recess; 36. a first flow passage; 37. a first extrusion gap; 38. a second conical boss; 39. a second tapered recess; 40. a second flow passage; 41. a second extrusion gap; 42. an inner layer material inlet; 43. a first annular material cavity; 44. an inner layer material outlet; 45. A filling layer material inlet; 46. a second annular material cavity; 47. a fill layer material outlet; 48. a first pull roll; 49. a cut-off roll; 50. a first mounting seat; 51. a second mounting seat; 52. a first sprocket; 53. a first drive motor; 54. a second sprocket; 55. a first drive chain; 56. a first lead screw; 57. a first rotating handle; 58. a third extruded tube; 59. a fourth extruded tube; 60. a third tapered boss; 61. a third tapered recess; 62. a third flow path; 63. a third extrusion gap; 64. a marker strip material inlet; 65. an identification strip material outlet; 66. an outer layer material inlet; 67. a third annular material cavity; 68. an outer layer material outlet; 69. A third mounting seat; 70. fixing the bolt; 71. a fixed shaft; 72. mounting a bearing; 73. a second pull roll; 74. a traction belt; 75. a third pull roll; 76. horizontally mounting the rod; 77. a vertical mounting rod; 78. a fixed seat; 79. a second lead screw; 81. a second drive motor; 82. a third sprocket; 83. a second drive chain; 84. a fourth sprocket; 85. a fifth sprocket; 86. driving the chain belt; 87. a rubber-plastic pipe; 88. a second air inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

As shown in fig. 1, the rubber-plastic pipe production equipment comprises a first extrusion device 1, a first water cooling device 2, a primary traction device 3, a crochet machine 4, a heating device 5, a second extrusion device 6, a second water cooling device 7, a secondary traction device 8, a code spraying device 9 and an air blowing device 10, wherein the rubber-plastic pipe 87 sequentially passes through the first extrusion device 1, the first water cooling device 2, the primary traction device, the second water cooling device 7, the secondary traction device 8, the code spraying device 9 and the air blowing device 10.

The first extrusion device 1 comprises a first fixed shell 11, a first extruder head 12, a first co-extrusion die, a second extruder head 13 and a second fixed shell 14 which are sequentially arranged, and an extruder 15 is connected to the first extruder head 12 and the second extruder head 13.

The first water cooling device 2 and the second water cooling device 7 both comprise a water cooling tank 16 which is horizontally arranged, the rubber tube 87 passes through the water cooling tank 16, and a plurality of water cooling tubes 17 used for cooling the rubber tube 87 are arranged on each water cooling tank 16 side by side.

The primary traction device 3 comprises two first mounting frames 18 arranged side by side, a stopping mechanism is respectively arranged on the two mounting frames, a first adjusting mechanism is arranged between each stopping mechanism and the first mounting frame 18, and a first driving mechanism is arranged between the two stopping mechanisms.

As shown in fig. 2, the heating device 5 includes a horizontally disposed heating box 19, a rubber tube 87 passes through the heating box 19, and two sides of the rubber tube 87 are respectively provided with a heating pipe 20 parallel to the rubber tube 87.

The second extrusion device 6 comprises a second co-extrusion die horizontally arranged, a third extrusion machine head 21 is sleeved on the second co-extrusion die, two extruders 15 are connected to the third extrusion machine head 21, and the adopted extruders 15 are extruders 15 which can be purchased in the market in the embodiment.

The secondary traction device 8 comprises two second mounting frames 22 arranged side by side, a bottom traction mechanism and a top traction mechanism which are arranged from top to bottom are arranged on each second mounting frame 22 in a sliding mode, a second adjusting mechanism is arranged between each top traction mechanism and the second mounting frame 22, a traction rod 23 is arranged on the rear end of each second mounting frame 22 in an inclined mode, a steering traction mechanism is arranged at the upper end of each traction rod 23, and a second driving mechanism is arranged between each steering traction mechanism and the two bottom traction mechanisms.

The code spraying device 9 comprises a vertically arranged support frame 24, and a code spraying head 25 arranged between the two top traction mechanisms is arranged on the support frame 24.

As shown in fig. 9, the air blowing device comprises an air blower 27 communicated with the rubber plastic pipe 87 through a first air inlet pipe 26, a pressure reducer 28 is installed on the first air inlet pipe 26, a stop valve 29 is installed at the joint of the first air inlet pipe 26 and the rubber plastic pipe 87, and the air blower 27 blows air to both ends of the rubber plastic pipe 87 at the same time, so that the rubber plastic pipe 87 can be fully blown all the time, the smooth and effective proceeding of each process is ensured, and the quality and the qualification rate of the rubber plastic pipe 87 are improved; and the manometer on pressure reducer 28 and the atmospheric pressure in the reality rubber tube 87 that the manometer table can be real-time, if atmospheric pressure is too low or too high, just can control the how much of gas of blowing in through rotating the pressure regulating handle on pressure reducer 28, guaranteed the stability of the internal gas pressure of rubber tube 87, and can be with rubber tube 87 gassing to suitable degree.

As shown in fig. 3, the first coextrusion die comprises a horizontally disposed die tube 30, the front end of the die tube 30 extends out of the first fixed housing 11 and is connected with an air blower 27 through a second air inlet pipe 88, a blowing cavity 31 penetrating through the die tube 30 is arranged in the die tube 30, a first tapered boss 32 is arranged at the front end of the die tube 30, a first extruding pipe 33 and a second extruding pipe 34 are sleeved on the die tube 30, a first tapered groove 35 is arranged in the first extruding pipe 33, the first tapered boss 32 is arranged in the first tapered groove 35, a first flow channel 36 is formed between the inner wall of the first tapered groove 35 and the outer wall of the first tapered boss 32, a first extruding gap 37 is formed between the inner wall of the first extruding pipe 33 and the outer wall of the die tube 30, a second tapered boss 38 is arranged at the rear end of the first extruding pipe 33, a second tapered groove 39 is arranged at the front end of the second extruding pipe 34, the second tapered boss 38 is arranged in the second tapered groove 39, a second flow passage 40 is formed between the inner wall of the second tapered recess 39 and the outer wall of the second tapered boss 38, and a second extrusion gap 41 is formed between the inner wall of the second extrusion pipe 34 and the outer wall of the die tube 30.

Wherein, the first fixed shell 11 and the first extrusion head 12 are both sleeved on the front end of the die tube 30, the side wall of the first extrusion head 12 and the side wall of the first fixed shell 11 are commonly provided with an inner layer material inlet 42, the inner layer material inlet 42 is communicated with an extruder 15 for heating and stirring the inner layer material of the rubber plastic tube 87, the first extrusion head 12 is internally provided with a first annular material cavity 43 communicated with the inner layer material inlet 42, the inner side of the first extrusion head 12 is provided with an annular inner layer material outlet 44 communicated with the first annular material cavity 43, the inner layer material outlet 44 is communicated with the first flow passage 36 and the first extrusion gap 37, the second extrusion head 13 is sleeved on the rear end of the first extrusion tube 33, the second fixed shell 14 is sleeved on the rear end of the second extrusion tube 34, the side wall of the first extrusion head 12 and the side wall of the second fixed shell 14 are commonly provided with a filling layer material inlet 45, the filling layer material inlet 45 is communicated with an extruder 15 for heating and stirring the filling layer material of the rubber and plastic pipe 87, a second annular material cavity 46 communicated with the filling layer material inlet 45 is arranged in the second extruder head 13, an annular filling layer material outlet 47 communicated with the second annular material cavity 46 is arranged on the inner side of the second extruder head 13, and the filling layer material outlet 47 is communicated with the second flow passage 40 and the second extrusion gap 41.

As shown in fig. 4 and 5, each stopping mechanism includes a first pulling roll 48 and a stopping roll 49, each stopping roll 49 and the corresponding first pulling roll 48 are disposed up and down, each stopping roll 49 has two ends provided with an upper first mounting seat 50 slidably mounted on the first mounting frame 18, each first pulling roll 48 has two ends provided with a second mounting seat 51 slidably fixed on the first mounting frame 18, one end of each first pulling roll 48 extends out of the second mounting seat 51, one end of each first pulling roll 48 is provided with a first sprocket 52, the first driving mechanism further includes a first driving motor 53, a second sprocket 54 is mounted on a motor shaft of the first driving motor 53, and the second sprocket 54 and the two first sprockets 52 are engaged with a first driving chain 55.

When the rubber plastic pipe 87 passes through the position between the first traction roller 48 and the stop roller 49 positioned at the upstream, the first traction roller 48 and the stop roller 49 perform first air flow stop on the air flow in the rubber plastic pipe 87, when the rubber plastic pipe 87 passes through the position between the first traction roller 48 and the stop roller 49 positioned at the downstream, the first traction roller 48 and the stop roller 49 perform second air flow stop on the air flow in the rubber plastic pipe 87, the motor shaft of the first driving motor 53 drives the second chain wheel 54 to rotate, the second chain wheel 54 drives the first driving chain 55 and the two first chain wheels 52 to rotate, so that the two first traction rollers 48 are driven to rotate and the rubber plastic pipe 87 is continuously driven to move backwards, the air flow in the rubber plastic pipe 87 is completely stopped, and the air flow in the rubber plastic inner layer is stopped twice, the rubber-plastic inner layer is prevented from being broken due to the fact that the rubber-plastic inner layer is simultaneously subjected to large internal tension and external extrusion force, and the rejection rate of the rubber-plastic pipe 87 is reduced.

Moreover, each adjustment mechanism all includes the first lead screw 56 of a vertical setting, and the lower extreme of each first lead screw 56 all rotates and installs on first mount pad 50, and the relevant position of each first mounting bracket 18 all is equipped with a screw hole, and each first lead screw 56 all passes first mounting bracket 18 through the screw hole, and first mounting bracket 18 all stretches out in the upper end of each first lead screw 56, and the upper end of each first lead screw 56 all is equipped with first rotation handle 57.

When the rubber plastic pipe cutting machine is used, a worker can freely adjust the gap between the first traction roller 48 and the stop roller 49 according to different types of rubber plastic pipes 87, if the diameter of the rubber plastic pipe 87 is larger or the pipe wall is thicker, the first rotating handle 57 needs to be rotated, the first rotating handle 57 drives the first lead screw 56 to rotate and move upwards, and simultaneously drives the first mounting seat 50 to move upwards, so that the gap between the first traction roller 48 and the stop roller 49 can be increased, if the diameter of the rubber plastic pipe 87 is smaller, the first rotating handle 57 needs to be rotated, the first rotating handle 57 drives the first lead screw 56 to rotate and move downwards, and simultaneously drives the first mounting seat 50 to move downwards, so that the gap between the first traction roller 48 and the stop roller 49 can be decreased, so that the rubber plastic pipe cutting machine can be suitable for the production needs of the rubber plastic pipes 87 with different types, thereby expanding the application range of the utility model, and simple structure, easy operation has reduced the cost that the company invested.

As shown in fig. 6, the second co-extrusion die includes a third extrusion pipe 58 and a fourth extrusion pipe 59 through which the rubber pipe 87 sequentially passes, a third tapered boss 60 is disposed at one end of the third extrusion pipe 58, a third tapered groove 61 is disposed at one end of the fourth extrusion pipe 59, the third tapered boss 60 is inserted into the third tapered groove 61, a third flow channel 62 is formed between an outer wall of the third tapered boss 60 and an inner wall of the third tapered groove 61, and a third extrusion gap 63 is formed between an inner wall of the fourth extrusion pipe 59 and the rubber pipe 87.

The third extruder head 21 is sleeved at the rear end of the third extrusion pipe fitting 58, a marker strip material inlet 64 is arranged in the third extruder head 21, the marker strip material inlet 64 is communicated with an extruder 15 used for heating and stirring marker strip materials of the rubber plastic pipe 87, a marker strip material outlet 65 communicated with the marker strip material inlet 64 is arranged in the third extrusion pipe fitting 58, an outer layer material inlet 66 is further arranged on the third extruder head 21, the outer layer material inlet 66 is communicated with the extruder 15 used for heating and stirring the outer layer materials of the rubber plastic pipe 87, a third annular material cavity 67 communicated with the outer layer material inlet 66 is arranged in the third extruder head 21, an annular outer layer material outlet 68 communicated with the third annular material cavity 67 is arranged on the inner side of the third extruder head 21, and the outer layer material outlet 68 is communicated with the third flow channel 62 and the third extrusion gap 63.

As shown in fig. 7 and 8, each of the top traction mechanism and the bottom traction mechanism includes a horizontally disposed third mounting seat 69, a fixing shaft 71 is fixed at a front end of each of the third mounting seats 69 through a fixing bolt 70, each of the fixing shafts 71 is horizontally disposed and perpendicular to the third mounting seat 69, a second traction roller 73 is rotatably mounted at a rear end of each of the third mounting seats 69 through a mounting bearing 72, each of the second traction rollers 73 is parallel to the first traction roller 48, a traction belt 74 is wound around each of the second traction rollers 73 and the corresponding fixing shaft 71, a rubber plastic pipe 87 passes through between the two traction belts 74, each of the steering traction mechanisms includes a third traction roller 75 parallel to the second traction roller 73, a horizontally disposed rod 76 is disposed inside each of the third traction rollers 75, a vertically disposed rod 77 is fixed at both ends of each of the horizontally disposed rod 76, a rubber tube 87 passes between the two vertical mounting rods 77.

Each second adjustment mechanism all includes a fixing base 78 that sets up on the third mount pad 69 that is located the top, all rotates the second lead screw 79 of installing a vertical setting on each fixing base 78, is equipped with a screw hole on each second mounting bracket 22, and each second lead screw 79 all passes the screw hole, and second mounting bracket 22 is all stretched out to the upper end of each second lead screw 79, and the upper end of each second lead screw 79 all is equipped with a second twist grip.

When using, operating personnel can adjust towed interval according to the pipe diameter size of the rubber and plastic pipe 87 that will produce, if the pipe diameter of rubber and plastic pipe 87 is big, only need to operate second turning handle and rotate, second turning handle drives the silk second pole and rotates, the rotation of second lead screw 79 drives top drive mechanism rebound, thereby the interval of pulling between two traction belts 74 has been increased, if the pipe diameter of rubber and plastic pipe 87 is little, only need to operate second turning handle and rotate, second turning handle drives second lead screw 79 and rotates backward, the rotation of second lead screw 79 drives top drive mechanism rebound, thereby the interval of pulling between two traction belts 74 has been reduced, make the utility model discloses can satisfy the rubber and plastic secondary of the pipe 87 of different models and pull the demand, and then enlarge the utility model discloses an application scope.

The second driving mechanism comprises a second driving motor 81, the second traction rollers 73 located at the downstream are installed on a motor shaft of the second driving motor 81, each second traction roller 73 is fixedly provided with a third chain wheel 82, the two third chain wheels 82 are meshed with a second driving chain 83 together, the second traction rollers 73 located at the downstream are also fixedly provided with a fourth chain wheel 84, the third traction rollers 75 are fixedly provided with fifth chain wheels 85, and the fifth chain wheels 85 and the fourth chain wheels 84 are meshed with driving chain belts 86 together.

When the rubber-plastic pipe 87 is used, the rubber-plastic pipe 87 sequentially passes through the space between the two traction belts 74 positioned at the upstream and the space between the two traction belts 74 positioned at the downstream, so that the rubber-plastic pipe 87 is prevented from rotating in the transmission process, the marking strip is ensured to be always opposite to the spraying head 25, characters can be accurately sprayed on the accurate position of the marking strip, and the attractiveness of the rubber-plastic pipe 87 is improved; and the motor shaft of the second driving motor 81 rotates to drive the third chain wheel 82, the second driving chain 83, the fourth chain wheel 84 and the driving chain belt 86 to rotate, the second driving chain 83 drives the other third chain wheel 82 to rotate, so that the two lower pulling belts 74 rotate and continuously drive the rubber plastic pipe 87 to move backwards, the rubber plastic pipe 87 continuously finishes code spraying, meanwhile, the driving chain belt 86 drives the fifth chain wheel 85 and the third traction roller 75 to rotate, the third traction roller 75 drives the rubber plastic pipe 87 which is sprayed with the codes to continuously move backwards, the rubber and plastic pipe 87 is turned by the third traction roller 75 and then placed downwards and automatically in an annular shape, so that the rubber and plastic pipe 87 is manufactured and produced, a worker only needs to cut the rubber and plastic pipe 87 to a certain length, and the worker does not need to finish the rubber and plastic pipe again, the labor intensity of the worker is reduced, and the production efficiency of the rubber and plastic pipe 87 is improved.

Example two

The working process of the invention is as follows:

the first step is to start the blower 27 and to blow air through the first air inlet duct 26, the blowing chamber 31 and the second air inlet duct 88 to both ends of the rubber-plastic tube 87.

The second step is that the materials of the rubber-plastic inner layer and the filling layer are respectively put into two extruders 15 connected with the first co-extrusion die, and the extruders 15 are started, the two extruders 15 respectively heat and stir the materials of the rubber-plastic inner layer and the filling layer, so that the materials of the rubber-plastic inner layer and the filling layer form a liquid state, wherein the rubber-plastic inner layer material in the extruders 15 flows into a first annular material cavity 43 through an inner layer material inlet 42 of the first extruder head 12, then flows into a first extrusion gap 37 through an inner layer material outlet 44 and a first runner 36, the liquid inner layer material forms the rubber-plastic inner layer in the first extrusion gap 37, the formed rubber-plastic inner layer enters the second extrusion pipe 34, the filling layer material of the other extruder 15 flows into a second annular material cavity 46 through a filling layer material inlet 45 of the second extruder head 13, and then flows into a second extrusion gap 41 through a filling layer material outlet 47 and a second runner 40, the liquid filling layer material wraps a filling layer on the outer side of the rubber-plastic inner pipe located in the second extrusion gap 41, and co-extrusion of the rubber-plastic inner layer and the filling layer is completed.

The third step is that the just formed rubber and plastic pipe 87 moves backwards and enters the water cooling tank 16 of the first water cooling device 2, and the nozzles of all the water cooling pipes 17 are over against the rubber and plastic pipe 87 and carry out water cooling on the rubber and plastic pipe 87.

The fourth step is that the cooled rubber plastic pipe 87 sequentially passes through two stopping mechanisms, the stopping gap of the stopping mechanism positioned at the upstream is larger than that of the stopping mechanism positioned at the downstream, when the rubber plastic pipe 87 passes through the position between the first drawing roller 48 and the stopping roller 49 positioned at the upstream, the first drawing roller 48 and the stopping roller 49 perform first air flow stopping on the air flow in the rubber plastic pipe 87, and when the rubber plastic pipe 87 passes through the position between the first drawing roller 48 and the stopping roller 49 positioned at the downstream, the first drawing roller 48 and the stopping roller 49 perform second air flow stopping on the air flow in the rubber plastic pipe 87.

And the fifth step is that the rubber tube 87 enters the crochet machine 4, and the crochet machine 4 wraps a crochet net layer on the surface of the filling layer.

And sixthly, the rubber-plastic pipe 87 enters the heating box 19, and the heating pipe 20 is used for heating the rubber-plastic pipe 87, so that the crocheted net layer is tightly attached to the surface of the filling layer.

The seventh step is that the heated rubber-plastic pipe 87 passes through a second co-extrusion die, firstly, the identification strip material is heated and stirred to form a liquid material, the liquid identification strip material forms an identification strip on the rubber-plastic pipe 87 through the identification strip material inlet 64 and the identification strip material outlet 65, meanwhile, the outer layer material is heated and stirred to form a liquid material, the liquid outer layer material flows into the third annular material cavity 67 through the outer layer material inlet 66 of the third extruder head 21, and then flows into the third extrusion gap 63 through the outer layer material outlet 68 and the third flow channel 62, and the rubber-plastic outer layer is wrapped on the outer side of the crocheted mesh layer in the third extrusion gap 63 by the liquid outer layer material, so that co-extrusion of the rubber-plastic outer layer and the identification strip is completed.

The eighth step is that the completely formed rubber-plastic pipe 87 enters the water cooling tank 16 of the second water cooling device 7 for water cooling, and the temperature of the rubber-plastic pipe 87 is reduced.

The ninth step is that the rubber plastic pipe 87 sequentially passes through the space between the two traction belts 74 positioned at the upstream and the space between the two traction belts 74 positioned at the downstream, so that the rubber plastic pipe 87 is prevented from rotating in the transmission process, and the marking strip is ensured to be always opposite to the spraying port 25.

In conclusion, the rubber and plastic pipe production equipment provided by the invention has the characteristics of freely adjusting the traction distance, having a wide application range, improving the quality, the integral mechanical strength and the distortion resistance of the rubber and plastic pipe, ensuring stable and sufficient air blowing in the rubber and plastic pipe, and having high production efficiency and attractive appearance.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The rubber plastic pipe production equipment is characterized by comprising a first extrusion device, a first water cooling device, a primary traction device, a crochet machine, a heating device, a second extrusion device, a second water cooling device, a secondary traction device, a code spraying device and an air blowing device, wherein the rubber plastic pipe sequentially passes through the first extrusion device, the first water cooling device, the primary traction device, the crochet machine, the heating device, the second extrusion device, the second water cooling device, the secondary traction device, the code spraying device and the air blowing device;

the air blowing device comprises an air blower communicated with the rubber pipe through a first air inlet pipe, a pressure reducer is arranged on the first air inlet pipe, and a stop valve is arranged at the joint of the first air inlet pipe and the rubber pipe;

the first co-extrusion die comprises a horizontally arranged die tube, the front end of the die tube extends out of the first fixed shell and is connected with the air blower through a second air inlet tube, an air blowing cavity penetrating through the die tube is arranged in the die tube, a first conical boss is arranged at the front end of the die tube, a first extrusion pipe fitting and a second extrusion pipe fitting are sleeved on the die tube, a first conical groove is arranged in the first extrusion pipe fitting, the first conical boss is arranged in the first conical groove, a first flow channel is formed between the inner wall of the first conical groove and the outer wall of the first conical boss, a first extrusion gap is formed between the inner wall of the first extrusion pipe fitting and the outer wall of the die tube, a second conical boss is arranged at the rear end of the first extrusion pipe fitting, a second conical groove is arranged at the front end of the second extrusion pipe fitting, and the second conical boss is arranged in the second conical groove, a second runner is formed between the inner wall of the second conical groove and the outer wall of the second conical boss, and a second extrusion gap is formed between the inner wall of the second extrusion pipe and the outer wall of the die pipe.

2. The rubber and plastic pipe production apparatus as claimed in claim 1, wherein the first fixed housing and the first extruder head are both sleeved on the front end of the mold pipe, the sidewall of the first extruder head and the sidewall of the first fixed housing are commonly provided with an inner layer material inlet, the inner layer material inlet is communicated with the extruder for heating and stirring the inner material of the rubber and plastic pipe, the first extruder head is internally provided with a first annular material chamber communicated with the inner layer material inlet, the inner side of the first extruder head is provided with an annular inner layer material outlet communicated with the first annular material chamber, the inner layer material outlet is communicated with the first flow channel and the first extrusion gap, the second extruder head is sleeved on the rear end of the first extrusion pipe, the second fixed housing is sleeved on the rear end of the second extrusion pipe, the sidewall of the first extruder head and the sidewall of the second fixed housing are commonly provided with a filling material inlet The material inlet of the filling layer is communicated with the extruder for heating and stirring the material of the rubber and plastic pipe filling layer, a second annular material cavity communicated with the material inlet of the filling layer is arranged in the second extruder head, an annular material outlet of the filling layer is arranged on the inner side of the second extruder head and communicated with the second annular material cavity, and the material outlet of the filling layer is communicated with the second flow channel and the second extrusion gap.

3. The apparatus for producing rubber and plastic pipes according to claim 1, wherein each of the stopping mechanisms comprises a first pulling roll and a stopping roll, each of the stopping roll and the corresponding first pulling roll are disposed up and down, each of the stopping roll and the corresponding first pulling roll has a first mounting seat slidably mounted on the first mounting frame at both ends thereof, each of the first pulling roll has a second mounting seat slidably mounted on the first mounting frame at both ends thereof, one end of each of the first pulling rolls extends out of the second mounting seat, and a first sprocket is mounted at one end of each of the first pulling rolls, the first driving mechanism further comprises a first driving motor, a second chain wheel is mounted on a motor shaft of the first driving motor, and a first driving chain is meshed with the second chain wheel and the two first chain wheels together.

4. The rubber and plastic pipe production device according to claim 3, wherein each adjusting mechanism comprises a vertically disposed first lead screw, the lower end of each first lead screw is rotatably mounted on the first mounting base, a threaded hole is formed at a corresponding position of each first mounting frame, each first lead screw passes through the first mounting frame through the threaded hole, the upper end of each first lead screw extends out of the first mounting frame, and a first rotating handle is arranged at the upper end of each first lead screw.

5. The rubber-plastic pipe production equipment according to claim 1, wherein the second co-extrusion die comprises a third extrusion pipe and a fourth extrusion pipe, the rubber pipe sequentially passes through the third extrusion pipe and the fourth extrusion pipe, a third tapered boss is arranged at one end of the third extrusion pipe, a third tapered groove is arranged at one end of the fourth extrusion pipe, the third tapered boss is inserted into the third tapered groove, a third flow channel is formed between the outer wall of the third tapered boss and the inner wall of the third tapered groove, and a third extrusion gap is formed between the inner wall of the fourth extrusion pipe and the rubber pipe.

6. The rubber-plastic pipe production equipment according to claim 5, wherein the third extruder head is sleeved at the rear end of the third extrusion pipe, an identification strip material inlet is arranged in the third extruder head, the identification strip material inlet is communicated with the extruder for heating and stirring the identification strip material of the rubber-plastic pipe, an identification strip material outlet communicated with the identification strip material inlet is arranged in the third extrusion pipe, an outer layer material inlet is also arranged on the third extruder head, the outer layer material inlet is communicated with the extruder for heating and stirring the outer layer material of the rubber-plastic pipe, a third annular material cavity communicated with the outer layer material inlet is arranged in the third extruder head, and an annular outer layer material outlet communicated with the third annular material cavity is arranged on the inner side of the third extruder head, the outer layer material outlet is communicated with the third flow channel and the third extrusion gap.

7. The apparatus for producing a rubber-plastic pipe as claimed in claim 3, wherein each of the top pulling mechanism and the bottom pulling mechanism comprises a horizontally disposed third mounting seat, a fixed shaft is fixed to a front end of each of the third mounting seats through a fixed bolt, each of the fixed shafts is horizontally disposed and perpendicular to the third mounting seat, a second pulling roller is rotatably mounted to a rear end of each of the third mounting seats through a mounting bearing, each of the second pulling rollers is parallel to the first pulling roller, a pulling belt is wound around each of the second pulling rollers and the corresponding fixed shaft, the rubber-plastic pipe passes through a space between the two pulling belts, each of the steering pulling mechanisms comprises a third pulling roller parallel to the second pulling roller, a horizontally disposed rod is disposed inside each of the third pulling rollers, and a vertical mounting rod is fixed to each of two ends of the horizontally disposed rod, the rubber plastic pipe penetrates between the two vertical mounting rods.

8. The rubber and plastic pipe production equipment according to claim 7, wherein each second adjusting mechanism comprises a fixed seat arranged on the third mounting seat positioned above, a vertically arranged second screw rod is rotatably mounted on each fixed seat, a threaded hole is formed in each second mounting frame, each second screw rod penetrates through the threaded hole, the upper end of each second screw rod extends out of the second mounting frame, and a second rotating handle is arranged at the upper end of each second screw rod; the second driving mechanism comprises a second driving motor, the second traction roller is arranged on the downstream and is installed on a motor shaft of the second driving motor, each second traction roller is fixedly provided with a third chain wheel, the third chain wheels are meshed with a second driving chain together, the second traction roller is arranged on the downstream and is fixedly provided with a fourth chain wheel, the third traction roller is fixedly provided with a fifth chain wheel, and the fifth chain wheel is meshed with a driving chain belt together on the fourth chain wheel.

9. The production process of the rubber-plastic pipe is characterized by comprising the following steps:

the method comprises the following steps that firstly, a blower is started, and air is introduced into two ends of a rubber pipe through a first air inlet pipe, an air blowing cavity and a second air inlet pipe;

secondly, respectively putting materials of the rubber-plastic inner layer and the filling layer into two extruders connected with the first co-extrusion die, starting the extruders, respectively heating and stirring the materials of the rubber-plastic inner layer and the filling layer to enable the materials of the rubber-plastic inner layer and the filling layer to form a liquid state, wherein the rubber-plastic inner layer material in the extruders flows into a first annular material cavity through an inner layer material inlet of the first extruder head, then flows into a first extrusion gap through an inner layer material outlet and a first flow passage, the liquid inner layer material forms the rubber-plastic inner layer in the first extrusion gap, the formed rubber-plastic inner layer enters a second extrusion pipe fitting, the filling layer material of the other extruder flows into a second annular material cavity through a filling layer material inlet of the second extruder head, and then flows into the second extrusion gap through a filling layer material outlet and a second flow passage, the liquid filling layer material wraps a filling layer on the outer side of the rubber-plastic inner pipe positioned in the second extrusion gap to complete co-extrusion of the rubber-plastic inner layer and the filling layer;

thirdly, the just-formed rubber and plastic tubes move backwards to enter a water cooling tank of a first water cooling device, and spray heads of all the water cooling tubes are over against the rubber and plastic tubes and carry out water cooling on the rubber and plastic tubes;

fourthly, the cooled rubber and plastic pipe sequentially passes through the two stopping mechanisms, the stopping gap of the stopping mechanism positioned at the upstream is larger than the stopping gap of the stopping mechanism positioned at the downstream, when the rubber and plastic pipe passes through the position between the first traction roller and the stopping roller positioned at the upstream, the first traction roller and the stopping roller perform first air flow stopping on the air flow in the rubber and plastic pipe, and when the rubber and plastic pipe passes through the position between the first traction roller and the stopping roller positioned at the downstream, the first traction roller and the stopping roller perform second air flow stopping on the air flow in the rubber and plastic pipe;

fifthly, the rubber and plastic pipe enters a crochet machine, and the crochet machine wraps a crochet net layer on the surface of the filling layer;

sixthly, the rubber plastic pipe enters the heating box, and the heating pipe is used for heating the rubber plastic pipe, so that the crocheted net layer is tightly attached to the surface of the filling layer;

seventhly, the heated rubber-plastic pipe passes through a second co-extrusion die, firstly, the identification strip material is heated and stirred to form a liquid material, the liquid identification strip material forms an identification strip on the rubber-plastic pipe through an identification strip material inlet and an identification strip material outlet, meanwhile, the outer layer material is heated and stirred to form a liquid material, the liquid outer layer material flows into a third annular material cavity through an outer layer material inlet of a third extruder head and then flows into a third extrusion gap through an outer layer material outlet and a third flow channel, and the outer rubber-plastic layer is wrapped outside the crocheted net layer in the third extrusion gap by the liquid outer layer material to complete the co-extrusion of the rubber-plastic outer layer and the identification strip;

eighthly, the completely molded rubber and plastic pipe enters a water cooling tank of a second water cooling device for water cooling, so that the temperature of the rubber and plastic pipe is reduced;