Multi-stage hot roller extrusion composite device for carpet banburying material

Abstract

The invention relates to the field of carpet processing, in particular to a multi-stage hot roller extrusion composite device for a carpet banburying material, which comprises a roller frame, a roller driving mechanism is arranged in the roller frame, the roller driving mechanism comprises a stepping motor I, the stepping motor I is fixed with the roller frame through a bolt, and a rotationally connected roller is arranged in the roller frame. A compression roller adjusting mechanism and a double-cutting mechanism are arranged in the roller frame; by arranging the heat conduction oil heater, the heat conduction oil cooler, the multi-connecting pipe and other parts, the heat conduction oil heater continuously supplies heat to the hot pressing roller through the hot water outlet pipe to maintain a high-constant-temperature composite environment, and meanwhile, the heat conduction oil cooler conveys a refrigerant to the cooling roller through the cold water outlet pipe to achieve rapid shaping of a composite material; the two sets of systems intelligently interact through a pipeline, cold oil is mixed with hot oil through a connecting pipe, then temperature adjustment is carried out, the working temperature of a preheating roller is stabilized within a pre-activation interval, and the energy consumption of the systems is reduced through waste heat recovery.

Description

Technical Field

[0001] The present invention relates to the field of carpet processing, and specifically to a multi-stage hot roll extrusion composite device for carpet masterbatch. Background Art

[0002] Carpet composite technology is a production process that bonds multiple layers of materials (such as carpet surface and back) through high temperature and high pressure. Traditional processing methods have problems such as uneven pressing, low efficiency, and poor temperature control. Modern processes adopt a dynamic pressing structure, combined with heating rollers to optimize the temperature distribution, improving the bonding uniformity and efficiency. The hot roll extrusion composite method not only improves production efficiency and product quality but also reduces energy consumption and VOC emissions, meeting environmental protection requirements and being suitable for high-precision and large-scale carpet production needs;

[0003] In the actual application process of hot roll extrusion composite technology, a single hot roll heating mode is mostly used. Since the carpet material needs to be instantaneously heated to a high-temperature composite state, it is extremely easy to cause local overheating of the carpet material during the composite process, thereby affecting the uniformity of the molecular structure of the bonding interface; and after hot roll extrusion composite, it is necessary to trim the carpet material before and after composite. Conventional trimming only targets the edges of the finished product after composite, and it is difficult to pre-cut the uncomposite carpet material synchronously. Therefore, a solution is proposed herein. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-stage hot roll extrusion composite device for carpet masterbatch to solve the above-mentioned technical defects.

[0005] To achieve the above invention purpose, the present invention adopts the following technical solution: A multi-stage hot roll extrusion composite device for carpet masterbatch, including a roll frame. A roll cylinder drive mechanism is further provided inside the roll frame. The roll cylinder drive mechanism includes a stepping motor I, which is fixed to the roll frame by bolts. A rotatably connected roll cylinder is provided inside the roll frame. A roll press adjustment mechanism and a double cutting mechanism are provided inside the roll frame. The double cutting mechanism includes a stepping motor II, and a bidirectional lead screw fixedly connected is provided after the drive shaft of the stepping motor II extends into the roll frame;

[0006] Symmetrically distributed screw nuts II are provided on the outer side of the bidirectional lead screw. Limit frames fixedly connected are provided above the screw nuts II. Rotatably connected round cutting knives are provided inside the limit frames. A heating and cooling mechanism is provided outside the roll frame. The heating and cooling mechanism includes a heat-conducting oil heater, and a heat-conducting oil cooler is fixedly installed above the roll frame by bolts.

[0007] Preferably, a first discharge groove and a second discharge groove are formed above the roller frame. Symmetrically distributed first limiting grooves are further formed inside the roller frame. A light-absorbing plate is fixedly installed above the inner wall of the roller frame by bolts. A cooling pipe is embedded in the roller frame above the light-absorbing plate. Both ends of the cooling pipe are provided with connecting heads that are fixedly connected and internally communicated.

[0008] Preferably, the shaft at one end of the roller is fixedly connected to the driving shaft of the first stepping motor. A second limiting groove is formed on the outer side of the roller. A preheating roller is rotatably connected inside the roller frame above the roller. Straight gears are fixedly connected to the outer sides of the shafts at one end of the preheating roller and the roller respectively, and the straight gears mesh with each other.

[0009] Preferably, the press roller adjusting mechanism includes a hand-twisting rod. The hand-twisting rod is located inside the roller frame and is rotatably connected to the roller frame. Symmetrically distributed worms are fixedly arranged inside the hand-twisting rod. A ball screw is rotatably connected inside the roller frame and the first limiting groove. A worm gear is fixedly connected to the lower side of the outer side of the ball screw, and the worm gear meshes with the worm.

[0010] Preferably, a first screw nut is also threadedly connected to the outer side of the ball screw. A roller frame is fixedly connected to one side of the first screw nut. The roller frame is located inside the first limiting groove and is slidably connected to the first limiting groove. A press roller is rotatably connected between the roller frames.

[0011] Preferably, the second stepping motor is located outside the roller frame and is fixedly connected to the roller frame by bolts. The circular cutter is located on the outer side of the roller and is slidably connected to the roller. An extension frame is fixedly connected to one side of the limiting frame close to the press roller. Laser emitters are fixedly installed on one side of each extension frame by bolts;

[0012] The laser emission ports of the laser emitters correspond to the positions of the light-absorbing plates, and the distance between the laser emitters is less than the distance between the circular cutters.

[0013] Preferably, a cooling roller is rotatably connected inside the roller frame. Rotary joints are fixedly arranged at both ends of the preheating roller, the hot press roller, and the cooling roller by bolts. A hot water outlet pipe is fixedly connected to one side above the heat-conducting oil heater;

[0014] The other end of the hot water outlet pipe is fixedly connected to the rotary joint at one end of the hot press roller. A connecting pipe that is fixedly connected and internally communicated is arranged between the rotary joint at the other end of the hot press roller and the rotary joint at the other end of the preheating roller.

[0015] Preferably, a cold water outlet pipe is fixedly connected to the water outlet of the heat-conducting oil cooler. The other end of the cold water outlet pipe is fixedly connected to the rotary joint at one end of the cooling roller and the connector at one end of the cooling pipe and is internally connected. A fourth connecting pipe is fixedly connected to the rotary joint at the other end of the cooling roller. The fourth connecting pipe is fixedly connected to the connector at the other end of the cooling pipe, fixedly connected to the first connecting pipe, and internally connected.

[0016] On the other side above the heat-conducting oil heater, a second connecting pipe is fixedly connected and internally connected. On one side of the second connecting pipe, a third connecting pipe is fixedly connected and internally connected. The third connecting pipe is fixedly connected to the liquid inlet of the heat-conducting oil cooler.

[0017] Compared with the prior art, the above technical solutions have the following beneficial effects:

[0018] 1. In the present invention, a stepping motor drives a bidirectional lead screw to link a limit frame, driving a circular cutting knife and a laser emitter to move synchronously. The circular cutting knife is used for preliminary cutting, and the waste of the carpet material after preliminary cutting is discharged. Then, secondary cutting is performed by the laser, so as to realize the precise pre-trimming of the pre-composite material and the secondary fine trimming after the finished product is composite, and the waste cut out before and after the composite is recycled in a partitioned manner. After multiple layers of carpet materials are orderly introduced through a guiding roller group, they are processed through a three-stage process of preheating by a preheating roller, constant-temperature composite by a hot pressing roller, and gradient temperature reduction by a cooling roller. Among them, the preheating roller and the hot pressing roller are linked in speed through a synchronous belt assembly, and the pressure of the pressing roller is manually adjusted by a worm and gear lifting mechanism, which can adapt to the composite requirements of materials with multiple thicknesses.

[0019] 2. The present invention also sets components such as a heat-conducting oil heater, a heat-conducting oil cooler, and multiple connecting pipes. The heat-conducting oil heater continuously supplies heat to the hot pressing roller through a hot water outlet pipe to maintain a high constant-temperature composite environment. At the same time, the heat-conducting oil cooler transports refrigerant to the cooling roller through a cold water outlet pipe to realize the rapid shaping of the composite material. The two systems interact intelligently through pipelines. The cold oil is mixed with the hot oil through the connecting pipe for temperature adjustment, so as to stabilize the working temperature of the preheating roller in the pre-activation range, and the system energy consumption is reduced through waste heat recovery, thereby improving the composite efficiency and product qualification rate of the carpet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The specification drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application.

[0021] In addition, the terms "installed", "set up", "provided with", "connected", "linked", "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, components or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a schematic diagram of the connection structure between the roller frame and the guide roller in the present invention;

[0024] Figure 3 is a schematic diagram of the connection structure of the first stepping motor in the present invention;

[0025] Figure 4 is a schematic diagram of the overall structure of the pressure roller adjusting mechanism in the roller frame in the present invention;

[0026] Figure 5 is a schematic diagram of the connection structure between the heating machine and the cooling machine in the present invention;

[0027] Figure 6 is a schematic diagram of the connection structure of the heating machine and the cooling machine from another perspective in the present invention;

[0028] Figure 7 is a schematic diagram of the positional relationship structure among the double cutting mechanism, the roller and the pressure roller in the present invention.

[0029] Legend: 1. Roller frame; 11. Extension plate; 12. Guide roller; 13. First discharge chute; 14. Second discharge chute; 15. First limiting groove; 16. Connector; 17. Light-absorbing plate; 2. Roller driving mechanism; 21. First stepping motor; 22. Roller; 23. Second limiting groove; 24. Preheating roller; 25. Hot press roller; 3. Pressure roller adjusting mechanism; 31. Hand-twisting rod; 32. Worm; 33. Ball screw; 34. Worm gear; 35. Roller frame; 36. Pressure roller; 4. Heating and cooling mechanism; 41. Heat-conducting oil heater; 42. Hot water outlet pipe; 43. First connecting pipe; 44. Second connecting pipe; 45. Third connecting pipe; 46. Heat-conducting oil cooler; 47. Cold water outlet pipe; 48. Cooling roller; 49. Fourth connecting pipe; 5. Double cutting mechanism; 51. Second stepping motor; 52. Bi-directional screw; 53. Limiting frame; 54. Circular cutting knife; 55. Extension frame; 56. Laser emitter. Detailed implementation manners

[0030] To enable those skilled in the art to better understand the solution of this application, the following will clearly and completely describe the technical solution in the embodiments of this application in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application.

[0031] Embodiment 1: Please refer to Figures 1-3 As shown, the present invention is a multi-stage hot roll extrusion composite device for carpet kneading material, including a roll frame 1. One end of the roll frame 1 is provided with an extension plate 11 fixedly connected thereto. Inside the extension plate 11, two guide rollers 12 are arranged in an array. The guide rollers 12 and the extension plate 11 are both fixedly connected. An outlet groove 13 and an outlet groove 14 are opened above the roll frame 1. Inside the roll frame 1, symmetrically distributed limiting grooves 15 are also opened. Above the inner wall of the roll frame 1, a light-absorbing plate 17 is fixedly installed by bolts. Inside the roll frame 1 above the light-absorbing plate 17, a cooling pipe is embedded. Both ends of the cooling pipe are provided with connection heads 16 fixedly connected and internally communicating.

[0032] Inside the roll frame 1, a roll cylinder driving mechanism 2 is also provided. The roll cylinder driving mechanism 2 includes a stepping motor 21. The stepping motor 21 and the roll frame 1 are fixedly connected by bolts. Inside the roll frame 1, a roll cylinder 22 is rotatably connected. The shaft at one end of the roll cylinder 22 is fixedly connected to the driving shaft of the stepping motor 21. A limiting groove 23 is opened on the outer side of the roll cylinder 22. Inside the roll frame 1 above the roll cylinder 22, a preheating roll 24 is rotatably connected. Fixedly connected spur gears are provided on the outer sides of the shafts at one ends of the preheating roll 24 and the roll cylinder 22, and the spur gears mesh with each other.

[0033] When the roll cylinder 22 rotates, it drives the preheating roll 24 to rotate at the same speed in the opposite direction through the spur gears. Inside the roll frame 1 on the side of the preheating roll 24 close to the outlet groove 14, a hot pressing roll 25 is rotatably connected. The hot pressing roll 25 and the preheating roll 24 are driven by a synchronous belt assembly. When the preheating roll 24 rotates, it drives the hot pressing roll 25 to rotate at the same speed in the same direction through the synchronous belt assembly.

[0034] Embodiment 2: Please refer to Figure 4 And Figure 7 As shown, the present invention is a multi-stage hot roll extrusion composite device for carpet kneading material, including a roll frame 1. Inside the roll frame 1, a roll pressure adjusting mechanism 3 and a double cutting mechanism 5 are provided. The roll pressure adjusting mechanism 3 includes a hand-twisting rod 31. The hand-twisting rod 31 is located inside the roll frame 1 and is rotatably connected to the roll frame 1. Symmetrically distributed worm gears 32 are fixedly arranged inside the hand-twisting rod 31. Inside the roll frame 1 and the limiting groove 15, a ball screw 33 is rotatably connected. Below the outer side of the ball screw 33, a worm wheel 34 is fixedly connected. The worm wheel 34 meshes with the worm gear 32.

[0035] On the outer side of the ball screw 33, there is also a screw nut one connected by threads. On one side of the screw nut one, there is a roller frame 35 fixedly connected. The roller frame 35 is located inside the first limiting groove 15 and is slidably connected to the first limiting groove 15. When turning the hand crank 31, the worm 32 inside the hand crank 31 rotates to drive the two worm wheels 34 to rotate synchronously. The worm wheels 34 drive the roller frame 35 to move up and down through the ball screw 33 and the screw nut one. Between the roller frames 35, there is a pressure roller 36 connected by rotation.

[0036] The double cutting mechanism 5 includes a second stepping motor 51. The second stepping motor 51 is located outside the roller frame 1 and is fixedly connected to the roller frame 1 by bolts. After the drive shaft of the second stepping motor 51 extends into the roller frame 1, there is a bidirectional screw 52 fixedly connected. On the outer side of the bidirectional screw 52, there are symmetrically distributed screw nuts two. Above the screw nuts two, there are fixedly connected limiting frames 53. Inside the limiting frames 53, there is a circular cutting knife 54 connected by rotation. The circular cutting knife 54 is located outside the roller 22 and is slidably connected to the roller 22. On one side of the limiting frame 53 close to the pressure roller 36, there is a fixedly connected extension frame 55. On one side of each extension frame 55, a laser emitter 56 is fixedly installed by bolts. The laser emission port of the laser emitter 56 corresponds to the position of the light absorption plate 17, and the distance between the laser emitters 56 is less than the distance between the circular cutting knives 54.

[0037] Embodiment 3: Please refer to Figures 5-6 As shown, the present invention is a multi-stage hot roller extrusion composite device for carpet mixing materials, including a roller frame 1. On the outer side of the roller frame 1, there is a heating and cooling mechanism 4. The heating and cooling mechanism 4 includes a heat-conducting oil heater 41. The heat-conducting oil heater 41 is placed on the ground. Inside the roller frame 1, there is also a cooling roller 48 connected by rotation. At both ends of the preheating roller 24, the hot pressing roller 25 and the cooling roller 48, rotary joints are fixedly provided by bolts. On one side above the heat-conducting oil heater 41, there is a fixedly connected hot water outlet pipe 42. The other end of the hot water outlet pipe 42 is fixedly connected to the rotary joint at one end of the hot pressing roller 25. Between the rotary joint at the other end of the hot pressing roller 25 and the rotary joint at the other end of the preheating roller 24, there is a fixedly connected and internally connected first connecting pipe 43.

[0038] A thermal oil cooler 46 is fixedly installed above the roller frame 1 by bolts, and a fixedly connected cold water outlet pipe 47 is provided at the water outlet of the thermal oil cooler 46, and the other end of the cold water outlet pipe 47 is fixedly connected to the rotating joint at one end of the cooling roller 48 and the connecting head 16 at one end of the cooling pipe and is internally connected, and the rotating joint at the other end of the cooling roller 48 is provided with a fixedly connected connecting pipe four 49, and the connecting pipe four 49 is fixedly connected to the connecting head 16 at the other end of the cooling pipe and is fixedly connected to the connecting pipe one 43 and is internally connected, and a fixedly connected and internally connected connecting pipe two 44 is provided on the other side above the thermal oil heater 41, and a fixedly connected and internally connected connecting pipe three 45 is provided on one side of the connecting pipe two 44, and the connecting pipe three 45 is fixedly connected to the liquid inlet of the thermal oil cooler 46.

[0039] The working process and principle of this application are as follows:

[0040] When in use, firstly, the double cutting mechanism 5 is adjusted according to the width of the carpet to be produced, and the stepper motor 2 51 is started to drive the bidirectional screw rod 52 to rotate. When the bidirectional screw rod 52 rotates, it drives the two limit frames 53 to move inward or outward synchronously, and the limit frames 53 drive the circular cutter 54 inside thereof to move synchronously, and the extension frame 55 and the laser emitter 56 fixedly connected to one side of the limit frame 53 also move synchronously, until the distance between the laser emission ports of the laser emitter 56 is consistent with the width of the carpet to be produced, and then the multi-layer carpet material to be compounded is wound and guided through the guide roller 12;

[0041] Then, the multi-layer carpet material is pulled between the roller 22 and the preheating roller 24, and then between the hot pressing roller 25 and the pressing roller 36, and then the multi-layer carpet material is pulled until it is in contact with the cooling roller 48, and finally the carpet material is pulled into the external winding mechanism, and then the height of the pressing roller 36 is adjusted according to the thickness of the carpet material, and the internal worm 32 is driven to rotate by twisting the hand screw rod 31, thereby driving the two worm gears 34 to rotate synchronously, and the worm gear 34 drives the roller frame 35 and the pressing roller 36 inside it to translate up and down through the ball screw 33 and the screw nut;

[0042] When working, the stepper motor 21, the thermal oil heater 41, the thermal oil cooler 46 and the laser transmitter 56 are started. When the stepper motor 21 is started, it drives the roller 22 to rotate. When the roller 22 rotates, it drives the preheating roller 24 to rotate in the same speed and opposite direction through the spur gear. The roller frame 1 of the preheating roller 24 near the discharge chute 2 14 is provided with a rotatably connected hot pressing roller 25. The hot pressing roller 25 and the preheating roller 24 are driven by a synchronous belt assembly. When the preheating roller 24 rotates, the synchronous belt assembly drives the hot pressing roller 25 to rotate at the same speed and in the same direction, so that the circular cutter 54 performs preliminary cutting of the multi-layer carpet material.

[0043] The cut uncompounded carpet material is pulled out through the discharge slot 13 for unloading, and then the carpet material is rolled and compounded between the pressing roller 36 and the hot pressing roller 25. The compounded carpet is cut again by the laser emitter 56, and then the cut carpet is cooled by the cooling roller 48, and then rolled up by the external winding mechanism;

[0044] When the thermal oil heater 41 is started, heat is supplied to the hot pressing roller 25 through the hot water outlet pipe 42. When the thermal oil cooler 46 is started, cold oil is transported to the cooling pipe and the cooling roller 48 through the cold water outlet pipe 47, thereby supplying cooling to the cooling pipe and the cooling roller 48. Subsequently, the cold oil merges with the connecting pipe one 43 through the connecting pipe four 49, thereby reducing the temperature of the hot oil in the connecting pipe one 43, so that the cooled hot oil flows into the preheating roller 24. Subsequently, the mixed hot oil partially flows into the thermal oil heater 41 through the connecting pipe two 44 at the other end of the preheating roller 24 for heating, and partially flows into the thermal oil cooler 46 through the connecting pipe two 44 and the connecting pipe three 45 for cooling.

[0045] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-stage hot roll extrusion composite device for carpet kneading material, comprising a roll frame (1), characterized in that, Inside the roller frame (1), there is also a roller driving mechanism (2). The roller driving mechanism (2) includes a first stepping motor (21). The first stepping motor (21) is fixedly connected to the roller frame (1) by bolts. Inside the roller frame (1), there is a rotatably connected roller (22). Inside the roller frame (1), there is a pressure roller adjusting mechanism (3) and a double cutting mechanism (5). The double cutting mechanism (5) includes a second stepping motor (51). After the driving shaft of the second stepping motor (51) extends into the roller frame (1), there is a bidirectional lead screw (52) fixedly connected thereto. On the outside of the bidirectional lead screw (52), there are symmetrically distributed second lead screw nuts. Above each second lead screw nut, there is a fixedly connected limit frame (53). Inside the limit frame (53), there is a rotatably connected circular cutting tool (54). On the outside of the roller frame (1), there is a heating and cooling mechanism (4). The heating and cooling mechanism (4) includes a heat-conducting oil heater (41). Above the roller frame (1), a heat-conducting oil cooler (46) is fixedly installed by bolts.

2. The multi-stage hot roll extrusion composite device for carpet kneaded material according to claim 1, wherein, Above the roller frame (1), there are a first discharge groove (13) and a second discharge groove (14). Inside the roller frame (1), there are also symmetrically distributed first limit grooves (15). Above the inner wall of the roller frame (1), a light-absorbing plate (17) is fixedly installed by bolts. Inside the roller frame (1) above the light-absorbing plate (17), there is a cooling pipe embedded. At both ends of the cooling pipe, there are fixedly connected connectors (16) with internal communication.

3. The multi-stage hot roll extrusion composite device for carpet kneading material according to claim 1, characterized in that, One end of the shaft of the roller (22) is fixedly connected to the driving shaft of the first stepping motor (21). On the outside of the roller (22), there is a second limit groove (23). Inside the roller frame (1) above the roller (22), there is a rotatably connected preheating roller (24). On the outside of the shafts at one end of the preheating roller (24) and the roller (22), there are fixedly connected spur gears, and the spur gears mesh with each other.

4. A multi-stage hot roller extrusion composite device for carpet kneading material according to claim 1, characterized in that, The pressure roller adjusting mechanism (3) includes a hand-twisting rod (31). The hand-twisting rod (31) is located inside the roller frame (1) and is rotatably connected to the roller frame (1). Inside the hand-twisting rod (31), there are symmetrically distributed worms (32). Inside the roller frame (1) and the first limit groove (15), there is a rotatably connected ball screw (33). Below the outside of the ball screw (33), there is a fixedly connected worm gear (34). The worm gear (34) meshes with the worm (32).

5. A multi-stage hot roll extrusion composite device for carpet kneaded material according to claim 4, characterized in that On the outside of the ball screw (33), there is also a first lead screw nut connected by threads. On one side of the first lead screw nut, there is a fixedly connected roller frame (35). The roller frame (35) is located inside the first limit groove (15) and is slidably connected to the first limit groove (15). Between the roller frames (35), there is a rotatably connected pressure roller (36).

6. A multi-stage hot roller extrusion composite device for carpet kneading material according to claim 1, characterized in that, The stepping motor two (51) is located outside the roller frame (1) and is fixedly connected to the roller frame (1) by bolts. The circular cutting knife (54) is located outside the roller (22) and is slidably connected to the roller (22). On one side of the limit frame (53) close to the pressure roller (36), there is an extension frame (55) fixedly connected. On one side of the extension frame (55), a laser emitter (56) is fixedly installed by bolts; The laser emission port of the laser emitter (56) corresponds to the position of the light absorption plate (17), and the distance between the laser emitters (56) is less than the distance between the circular cutting knives (54).

7. A multi-stage hot roller extrusion composite device for carpet kneaded material according to claim 3, characterized in that, Inside the roller frame (1), there is also a cooling roller (48) rotatably connected. At both ends of the preheating roller (24), the hot pressing roller (25) and the cooling roller (48), rotary joints are fixedly installed by bolts. On one side above the heat-conducting oil heater (41), there is a hot water outlet pipe (42) fixedly connected; The other end of the hot water outlet pipe (42) is fixedly connected to the rotary joint at one end of the hot pressing roller (25). Between the rotary joint at the other end of the hot pressing roller (25) and the rotary joint at the other end of the preheating roller (24), there is a connecting pipe one (43) fixedly connected and internally connected.

8. A multi-stage hot roll extrusion composite device for carpet kneading material according to claim 1, characterized in that, At the water outlet of the heat-conducting oil cooler (46), there is a cold water outlet pipe (47) fixedly connected. The other end of the cold water outlet pipe (47) is fixedly connected and internally connected to the rotary joint at one end of the cooling roller (48) and the connecting head (16) at one end of the cooling pipe. At the rotary joint at the other end of the cooling roller (48), there is a connecting pipe four (49) fixedly connected. The connecting pipe four (49) is fixedly connected to the connecting head (16) at the other end of the cooling pipe and is fixedly connected and internally connected to the connecting pipe one (43); On the other side above the heat-conducting oil heater (41), there is a connecting pipe two (44) fixedly connected and internally connected. On one side of the connecting pipe two (44), there is a connecting pipe three (45) fixedly connected and internally connected. The connecting pipe three (45) is fixedly connected to the liquid inlet of the heat-conducting oil cooler (46).

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