Raw material mixing device for rubber roller production

Abstract

The invention relates to the technical field of rubber roller production, and discloses a raw material mixing device for rubber roller production, which comprises a mixing tank and a tank cover, and further comprises a heating assembly and a stirring assembly. And the stirring assembly fully stirs and mixes the rubber roller raw materials in the tank. In the heating assembly, a first heating cavity is formed in the side wall of the mixing tank, and a first spiral coil is arranged in the cavity. A horizontal and hollow first oil guide disc is fixedly connected to the middle of the bottom of the mixing tank, a plurality of snake-shaped oil guide pipes are uniformly distributed on the circumference of the top surface of the mixing tank, and the snake-shaped oil guide pipes are vertically arranged and are communicated with an inner cavity of the first oil guide disc; a second oil guide disc is arranged at the top of the mixing tank, is hollow and is fixedly communicated with the snake-shaped oil guide pipe. The bottom end of the first spiral coil communicates with the first oil guide disc through an oil inlet pipe, and the outer end of an oil outlet pipe on the side wall of the first oil guide disc penetrates through the mixing tank. Heating can be conducted from the edge and the middle position of the tank body at the same time, the heating efficiency is improved, raw materials are evenly heated, and the local overheating or supercooling phenomenon is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber roller production, and particularly relates to a raw material mixing device for rubber roller production. Background Art

[0002] There are a rich variety of rubber rollers. According to the materials, they can be divided into natural rubber rollers, synthetic rubber rollers, special rubber rollers, recycled rubber rollers and composite raw material rubber rollers. Among them, polyurethane rubber rollers (PU rubber rollers) have wide applications in fields such as textile printing and dyeing, printing industry, grain processing and metallurgical industry due to their advantages such as high strength and high tear resistance. Their production process adopts the casting molding method. First, the liquid polyurethane prepolymer (component A) and the curing agent (component B) are heated and stirred for mixing, and then the mixture is poured into a pre-treated metal core or mold and cured under certain temperature conditions.

[0003] For the existing raw material mixing device for rubber roller production, when heating and stirring the polyurethane raw materials, traditional heating methods such as jacket heating and electric hot plates are usually used, which easily cause overheating at the edge of the tank body while the central temperature is insufficient. When the local temperature of the prepolymer (component A) is too high, a pre-reaction will occur, and the isocyanate (-NCO) will react with the polyol in advance to form a branched structure, resulting in a sudden increase in viscosity, and further causing difficulties in pouring. The rubber roller will have poor leveling property; in the low-temperature area, the solubility of the curing agent (component B) will be reduced, and it will precipitate from the raw materials to form particles, resulting in uneven hardness of the rubber roller and a decrease in mechanical strength.

[0004] Therefore, it is necessary to develop a raw material mixing device for rubber roller production to address the above defects. Summary of the Invention

[0005] The purpose of the present invention is to provide a raw material mixing device for rubber roller production, which can heat simultaneously from the edge and the middle position of the tank body, improve the heating efficiency of the rubber roller raw materials, and at the same time can uniformly heat the raw materials to avoid local overheating or overcooling.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: A raw material mixing device for rubber roller production of the present invention includes a mixing tank and a tank cover arranged on the top of the mixing tank, and further includes a heating component and a stirring component; The heating component includes a first heating chamber opened on the side wall of the mixing tank. A first spiral coiled pipe is arranged in the first heating chamber. An oil inlet is fixedly connected to the outer wall of the mixing tank, and the oil inlet is communicated with the oil inlet end of the first spiral coiled pipe. A horizontally arranged and hollow first oil guiding plate is fixedly connected to the middle position of the bottom of the mixing tank. A plurality of serpentine oil guiding pipes are evenly distributed in a circular pattern on the top surface of the first oil guiding plate. The serpentine oil guiding pipes are vertically arranged and communicated with the inner cavity of the first oil guiding plate. A second oil guiding plate is arranged at the top of the mixing tank. The second oil guiding plate is hollow inside and fixedly communicated with the serpentine oil guiding pipes. The bottom end of the first spiral coiled pipe is communicated with the first oil guiding plate through an oil inlet pipe. An oil outlet pipe is fixedly communicated with the side wall of the first oil guiding plate, and the outer end of the oil outlet pipe penetrates through the mixing tank. The stirring component is arranged in the mixing tank and is used for stirring and mixing the rubber roller raw materials in the mixing tank.

[0007] Further, the stirring component includes a motor. The motor is fixedly connected to the top surface of the tank cover. The output end of the motor is coaxially and fixedly connected with a rotating shaft. The rotating shaft is vertically arranged and penetrates through the tank cover, the first oil guiding plate and the second oil guiding plate respectively. A first connecting rod is fixedly connected to the outer wall of the top end of the rotating shaft. Stirring rods vertically arranged are respectively rotatably connected to both ends of the first connecting rod. A plurality of stirring paddles are fixedly connected to the outer wall of the stirring rod at uniform intervals along the length direction thereof. A transmission member is arranged on the first connecting rod and is used for driving the stirring rod to rotate self.

[0008] Further, the transmission member includes a first gear and two second gears. A connecting cylinder is fixedly connected to the inner top surface of the tank cover. The connecting cylinder is sleeved on the outer wall of the rotating shaft. The first gear is coaxially and fixedly connected to the outer wall of the connecting cylinder. The two second gears are respectively coaxially and fixedly connected to the two stirring rods, and the two second gears are respectively meshed with the first gear.

[0009] Further, the stirring component further includes an auger, and the auger is sleeved and fixed on the rotating shaft between the first oil guiding plate and the second oil guiding plate.

[0010] Further, the stirring component further includes a first scraping plate. The first scraping plate is vertically and fixedly connected to one end of the first connecting rod, and the first scraping plate is in contact with the inner wall of the mixing tank.

[0011] Further, a second connecting rod is fixedly connected to the outer wall of the bottom end of the rotating shaft. Second scraping plates are fixedly connected to both ends of the second connecting rod, and the second scraping plates are in contact with the inner wall of the bottom of the mixing tank.

[0012] Further, a baffle is fixedly connected inside the first oil guide tray. The baffle evenly divides the first oil guide tray into an oil inlet chamber and an oil outlet chamber. A plurality of the serpentine oil guide pipes are symmetrically arranged with respect to the baffle. The inlet pipe communicates with the oil inlet chamber, and the outlet pipe communicates with the oil outlet chamber.

[0013] Further, a plurality of support connecting rods are fixedly connected between the first oil guide tray and the second oil guide tray.

[0014] Further, a plurality of connecting plates are fixedly connected to the side wall of the first oil guide tray. The outer ends of the connecting plates (30) are fixedly connected to the inner wall of the mixing tank.

[0015] Further, the heating assembly further includes a second spiral coil pipe. The bottom of the mixing tank is of a conical structure. A second heating cavity is formed in the side wall of the bottom of the mixing tank. The second spiral coil pipe is fixed in the second heating cavity. The oil inlet end of the second spiral coil pipe communicates with the outlet pipe. An oil outlet is arranged on the side wall of the bottom of the mixing tank. The oil outlet communicates with the oil outlet end of the second spiral coil pipe.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are as follows: Through the arrangement of the first spiral coil pipe, the first oil guide tray, the second oil guide tray and a plurality of serpentine oil guide pipes, a three-dimensional heating system is formed, realizing the heating of the raw materials in the mixing tank from the edge and the inside of the tank body together, improving the heating efficiency of the raw materials, and at the same time ensuring uniform heating of the raw materials in the mixing tank. The heat-conducting oil enters the first oil guide tray from the first spiral coil pipe and is dispersed into the serpentine oil guide pipes through the first oil guide tray, realizing the circulating flow of the heat-conducting oil. Cooperating with the stirring assembly to stir the raw materials in the mixing tank, avoiding local overheating or overcooling, preventing the prepolymer (component A) from undergoing a pre-reaction due to local high temperature, ensuring that the curing agent (component B) is always in a good dissolved state, preventing precipitation and forming particles due to low temperature, and effectively improving the hardness uniformity and mechanical strength of the rubber roller.

[0017] By connecting the second spiral coil pipe with the outlet pipe, the raw materials at the bottom of the tank can be heated, avoiding the situation that the raw materials at the bottom of the tank cannot be heated and the heating effect is poor, ensuring that the temperature of the raw materials in the mixing tank is consistent, and guaranteeing the mixing quality.

[0018] In the stirring assembly, the motor drives the rotating shaft to rotate. Through the transmission part, the stirring rod rotates while revolving around the rotating shaft, driving the stirring paddle to stir the raw materials in a compound motion mode. Compared with the traditional single stirring method, the degree of disturbance of the raw materials is increased, the polyurethane prepolymer and the curing agent can be quickly and fully mixed, the mixing blind area is reduced, and the mixing efficiency and uniformity are improved. Through the arrangement of the auger, during the stirring process, the raw materials can be pushed to circulate up and down along the direction of the rotating shaft, further enhancing the mixing effect of the raw materials in the vertical direction and ensuring that the raw materials at different heights can be fully mixed.

[0019] By arranging a baffle plate in the first oil guiding tray to divide it into an oil inlet chamber and an oil outlet chamber, the circulating flow path of the heat-conducting oil is optimized, making the flow of the heat-conducting oil in the first oil guiding tray, the serpentine oil guiding pipe and the second oil guiding tray more orderly, improving the heat transfer efficiency, and further ensuring the heating uniformity. Description of the Drawings

[0020] The present invention will be further described below in conjunction with the description of the drawings.

[0021] Figure 1 It is a cross-sectional view of the raw material mixing device for the production of rubber rollers of the present invention; Figure 2 It is a top view of the first oil guiding tray of the present invention; Figure 3 It is a three-dimensional view of the first oil guiding tray and the serpentine oil guiding pipe of the present invention.

[0022] Description of the reference numerals: 1, mixing tank; 2, tank cover; 3, first heating chamber; 4, first spiral coil pipe; 5, first oil guiding tray; 6, serpentine oil guiding pipe; 7, second oil guiding tray; 8, oil inlet pipe; 9, oil outlet pipe; 10, motor; 11, rotating shaft; 12, first connecting rod; 13, stirring rod; 14, stirring paddle; 15, first gear; 16, second gear; 17, connecting cylinder; 18, auger; 19, first scraper; 20, baffle plate; 21, oil inlet chamber; 22, oil outlet chamber; 23, support connecting rod; 24, second spiral coil pipe; 25, second heating chamber; 26, oil outlet; 27, second connecting rod; 28, second scraper; 29, oil inlet; 30, connecting plate. Detailed Embodiments

[0023] The core of the present invention is to provide a raw material mixing device for the production of rubber rollers, which can heat from the edge and the middle position of the tank body simultaneously, improve the heating efficiency of the rubber roller raw materials, and can heat the raw materials evenly to avoid local overheating or overcooling.

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] It can be understood that the electrical components appearing in the text are all electrically connected to the main controller and the power supply and the electrical components appearing in the text are all conventionally known devices, and this application will not go into too much detail. The main controller can be a conventionally known device that controls a computer, etc. The control circuit of the main controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and circuit connection in detail. At the same time, the parts not described in detail in the present invention are all common technologies of technicians in this field.

[0027] In a specific embodiment of the present invention, Figure 1 As shown, the mixing tank 1 includes a mixing tank 1 and a tank cover 2 arranged on the top of the mixing tank 1. The tank cover 2 is provided with a feed inlet, and the mixing tank 1 is provided with a discharge port with a valve at the bottom. The mixing tank 1 also includes a heating component and a stirring component. The heating component is used to achieve uniform heating of the raw materials in the mixing tank 1, and the stirring component is used to fully stir and mix the rubber roller raw materials in the tank.

[0028] The heating assembly includes a first heating chamber 3 opened on the side wall of the mixing tank 1, a first spiral coil 4 is arranged in the first heating chamber 3, an oil inlet 29 is fixedly connected to the outer wall of the mixing tank 1, and the oil inlet 29 is connected to the oil inlet end of the first spiral coil 4. The oil inlet is externally connected to an oil pump and a heating device (not shown in the figure) for conveying heat transfer oil to the oil inlet 29. A horizontally arranged and hollow first oil guide plate 5 is fixedly connected to the middle position at the bottom of the mixing tank 1, and a plurality of serpentine oil guide pipes 6 are evenly arranged on the top surface of the first oil guide plate 5. The serpentine oil guide pipes 6 are vertically arranged and connected to the inner cavity of the first oil guide plate 5; a second oil guide plate 7 is arranged on the top of the mixing tank 1, and the second oil guide plate 7 is hollow inside and fixedly connected to the serpentine oil guide pipe 6; the bottom end of the first spiral coil 4 is connected to the first oil guide plate 5 through an oil inlet pipe 8, and an oil outlet pipe 9 is fixedly connected to the side wall of the first oil guide plate 5, and the outer end of the oil outlet pipe 9 passes through the mixing tank 1.

[0029] Through the arrangement of the first spiral coil pipe 4, the first oil guiding disc 5, the second oil guiding disc 7 and several serpentine oil guiding pipes 6, a three-dimensional heating system is formed, realizing the heating of the raw materials in the mixing tank 1 from the edge and the inside of the tank body simultaneously, improving the heating efficiency of the raw materials, and at the same time ensuring the uniform heating of the raw materials in the mixing tank 1. The heat-conducting oil enters the first oil guiding disc 5 from the first spiral coil pipe 4 and is dispersed into the serpentine oil guiding pipes 6 through the first oil guiding disc 5, realizing the circulating flow of the heat-conducting oil. Cooperating with the stirring component to stir the raw materials in the mixing tank 1, avoiding local overheating or overcooling, preventing the pre-reaction of the prepolymer A component caused by local high temperature, ensuring that the curing agent B component is always in a good dissolved state, preventing the formation of particles due to precipitation at low temperature, and effectively improving the hardness uniformity and mechanical strength of the rubber roller.

[0030] In a specific embodiment of the present invention, as Figure 1 shown, the stirring component includes a motor 10. The motor 10 is fixedly connected to the top surface of the tank cover 2. The output end of the motor 10 is coaxially and fixedly connected with a rotating shaft 11. The rotating shaft 11 is vertically arranged and penetrates through the tank cover 2, the first oil guiding disc 5 and the second oil guiding disc 7 respectively. The rotating shaft 11 is rotationally connected to the second oil guiding disc 7 through a bearing seat, which can support the bottom end of the rotating shaft 11 and ensure the stability of the rotation of the rotating shaft 11. The outer wall of the top end of the rotating shaft 11 is fixedly connected with a first connecting rod 12. The two ends of the first connecting rod 12 are respectively rotationally connected with vertically arranged stirring rods 13. A plurality of stirring paddles 14 are fixedly connected to the outer wall of the stirring rod 13 at equal intervals along its length direction; a transmission member is arranged on the first connecting rod 12, and the transmission member is used to drive the stirring rod 13 to rotate self.

[0031] Specifically, the transmission member includes a first gear 15 and two second gears 16. The inner top surface of the tank cover 2 is fixedly connected with a connecting cylinder 17. The connecting cylinder 17 is sleeved on the outer wall of the rotating shaft 11. The first gear 15 is coaxially and fixedly connected to the outer wall of the connecting cylinder 17. The two second gears 16 are respectively coaxially and fixedly connected to the two stirring rods 13, and the two second gears 16 are respectively meshed with the first gear 15.

[0032] By the rotation of the motor 10, the rotating shaft 11 is driven to rotate, driving the first connecting rod 12 to rotate. Under the meshing transmission of the first gear 15 and the two second gears 16, the second gear 16 can drive the stirring rod 13 to rotate self, so that the stirring paddle 14 rotates self while revolving, realizing the all-round stirring and mixing of the raw materials.

[0033] Specifically, the stirring component further includes an auger 18. The auger 18 is sleeved and fixed on the rotating shaft 11 between the first oil guiding disc 5 and the second oil guiding disc 7. The auger 18 rotates driven by the rotating shaft 11, and can convey the raw materials in the middle of the mixing tank 1 upward or downward, promoting the circulating flow of the raw materials in the vertical direction and further improving the mixing uniformity.

[0034] Specifically, the stirring assembly further includes a first scraper 19, which is vertically fixedly connected to one end of the first connecting rod 12, and the first scraper 19 is arranged in contact with the inner wall of the mixing tank 1. During the stirring process, the first scraper 19 can scrape off the raw materials attached to the tank wall to prevent the residual raw materials from affecting the mixing effect, and also helps to evenly transfer heat to the raw materials near the tank wall.

[0035] Specifically, a second connecting rod 27 is fixedly connected to the outer wall of the bottom end of the rotating shaft 11, and second scrapers 28 are fixedly connected to both ends of the second connecting rod 27. The second scraper 28 is arranged in contact with the inner wall of the bottom of the mixing tank 1. The second scraper 28 can scrape off the residual raw materials at the bottom of the tank, and the second connecting rod 27 can stir the raw materials at the bottom of the tank to avoid the sedimentation of the raw materials and ensure that the raw materials in the tank are fully mixed.

[0036] In a specific embodiment of the present invention, Figure 1 and Figure 3 As shown, a baffle 20 is fixedly connected inside the first oil guide plate 5, and the baffle 20 evenly divides the first oil guide plate 5 into an oil inlet chamber 21 and an oil outlet chamber 22. A plurality of serpentine oil guide pipes 6 are symmetrically arranged about the baffle 20, and the oil inlet pipe 8 is connected to the oil inlet chamber 21, and the oil outlet pipe 9 is connected to the oil outlet chamber 22. Half of the serpentine oil guide pipe 6 is connected to the oil inlet chamber 21, and the other half of the serpentine oil guide pipe 6 is connected to the oil outlet chamber 22. After passing through the first spiral coil 4, the heat transfer oil enters the oil inlet chamber 21 of the first oil guide plate 5 through the oil inlet pipe 8, and the heat transfer oil is dispersedly transported to a plurality of serpentine oil guide pipes 6 connected to the oil inlet chamber 21 through the oil inlet chamber 21, and further transported to the second oil guide plate 7. The heat transfer oil in the second oil guide plate 7 enters the oil outlet chamber 22 through the serpentine oil guide pipe 6 connected to the oil outlet chamber 21, and is discharged through the oil outlet pipe 9, so as to realize the circulation of the heat transfer oil.

[0037] In a specific embodiment of the present invention, Figure 1 As shown, a plurality of supporting connecting rods 23 are fixedly connected between the first oil guide plate 5 and the second oil guide plate 7 to enhance the connection stability between the two, ensure the stability of the heating component structure, and also provide support for the serpentine oil guide pipe 6.

[0038] In a specific embodiment of the present invention, Figure 2 As shown, a plurality of connecting plates 30 are fixedly connected to the side wall of the first oil guide plate 5 , and the outer ends of the connecting plates 30 are fixedly connected to the inner wall of the mixing tank 1 .

[0039] In a specific embodiment of the present invention, Figure 1As shown in the figure, the heating assembly further includes a second spiral coil 24. The bottom of the mixing tank 1 is of a conical structure. A second heating cavity 25 is provided on the side wall of the bottom of the mixing tank 1. The second spiral coil 24 is fixed in the second heating cavity 25. The oil inlet end of the second spiral coil 24 is communicated with the oil outlet pipe 9, so that the second spiral coil 24 is connected to the circulation of the first spiral coil 4 and the serpentine oil guide pipe 6. An oil outlet 26 is provided on the side wall of the bottom of the mixing tank 1, and the oil outlet 26 is communicated with the oil outlet end of the second spiral coil 24. The second spiral coil 24 can heat the raw materials at the bottom of the tank, avoiding the precipitation of curing agent caused by insufficient temperature of the raw materials at the bottom of the tank, and ensuring that all positions in the mixing pipe can be evenly heated.

[0040] Working principle of the present invention: When the raw material mixing device for rubber roller production of the present invention is in use, the heat-conducting oil is heated and transported to the oil inlet 29 through an external oil pump and heating equipment, and enters the first spiral coil 4 to heat the heat-conducting oil near the side wall of the mixing tank 1. Then the heat-conducting oil flows out from the oil outlet end of the first spiral coil 4, enters the oil inlet chamber 21 of the first oil guide plate 5 through the oil inlet pipe 8, and disperses and transports the heat-conducting oil into a number of serpentine oil guide pipes 6 communicated with the oil inlet chamber 21, and further transports it into the second oil guide plate 7. The heat-conducting oil in the second oil guide plate 7 enters the oil outlet chamber 22 through the serpentine oil guide pipe 6 communicated with the oil inlet chamber 21, heats the raw materials from the inside of the mixing tank 1, and enters the second spiral coil through the oil outlet pipe 9, flows out from the oil outlet 26 after heating the raw materials at the bottom of the tank, completing the circulating heating of the heating oil. Through multi-site heating, the raw materials are evenly heated, avoiding local overcooling or overheating.

[0041] During the heating process of the raw materials, the motor 10 is started to drive the rotating shaft 11 to rotate. The rotating shaft 11 drives the first connecting rod 12 and the stirring rod 13 to revolve. Under the meshing transmission of the first gear 15 and the two second gears 16, the second gear 16 can drive the stirring rod 13 to rotate self, so that the stirring paddle 14 rotates self while revolving, realizing the all-round stirring and mixing of the raw materials. The auger 18 rotates to promote the vertical flow of the raw materials. The first scraper 19 and the second scraper 28 scrape the raw materials on the tank wall and the bottom of the tank respectively, ensuring the full mixing of the raw materials, improving the mixing quality of the rubber roller raw materials, and providing high-quality raw materials for subsequent casting and molding.

[0042] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is the difference from other embodiments. The same and similar parts among the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0043] The embodiments described above are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A raw material mixing device for rubber roller production, comprising a mixing tank (1) and a tank cover (2) arranged on the top of the mixing tank (1), characterized in that: It further includes a heating component and a stirring component; The heating component includes a first heating chamber (3) opened on the side wall of the mixing tank (1). A first spiral coil pipe (4) is arranged in the first heating chamber (3). An oil inlet (29) is fixedly connected to the outer wall of the mixing tank (1), and the oil inlet (29) is communicated with the oil inlet end of the first spiral coil pipe (4). A horizontally arranged and hollow first oil guiding disc (5) is fixedly connected to the middle position of the bottom of the mixing tank (1). A plurality of serpentine oil guiding pipes (6) are evenly distributed in a circular pattern on the top surface of the first oil guiding disc (5). The serpentine oil guiding pipes (6) are vertically arranged and communicated with the inner cavity of the first oil guiding disc (5). A second oil guiding disc (7) is arranged at the top of the mixing tank (1). The second oil guiding disc (7) is hollow inside and fixedly communicated with the serpentine oil guiding pipes (6). The bottom end of the first spiral coil pipe (4) is communicated with the first oil guiding disc (5) through an oil inlet pipe (8). An oil outlet pipe (9) is fixedly communicated with the side wall of the first oil guiding disc (5), and the outer end of the oil outlet pipe (9) penetrates through the mixing tank (1); The stirring component is arranged in the mixing tank (1), and the stirring component is used for stirring and mixing the rubber roller raw materials in the mixing tank (1).

2. The raw material mixing device for production of rubber rollers according to claim 1, wherein: The stirring component includes a motor (10). The motor (10) is fixedly connected to the top surface of the tank cover (2). The output end of the motor (10) is coaxially and fixedly connected with a rotating shaft (11). The rotating shaft (11) is vertically arranged and respectively penetrates through the tank cover (2), the first oil guiding disc (5) and the second oil guiding disc (7). A first connecting rod (12) is fixedly connected to the outer wall of the top end of the rotating shaft (11). Stirring rods (13) vertically arranged are respectively rotatably connected to both ends of the first connecting rod (12). A plurality of stirring paddles (14) are fixedly connected to the outer wall of the stirring rod (13) at equal intervals along its length direction. A transmission member is arranged on the first connecting rod (12), and the transmission member is used for driving the stirring rod (13) to rotate self.

3. The raw material mixing device for calender roller production according to claim 2, characterized in that: The transmission member includes a first gear (15) and two second gears (16). A connecting cylinder (17) is fixedly connected to the inner top surface of the tank cover (2). The connecting cylinder (17) is sleeved on the outer wall of the rotating shaft (11). The first gear (15) is coaxially and fixedly connected to the outer wall of the connecting cylinder (17). The two second gears (16) are respectively coaxially and fixedly connected to the two stirring rods (13), and the two second gears (16) are respectively meshed with the first gear (15).

4. The raw material mixing device for calender roller production according to claim 3, wherein: The stirring component further includes an auger (18). The auger (18) is sleeved and fixed on the rotating shaft (11) between the first oil guiding disc (5) and the second oil guiding disc (7).

5. The raw material mixing device for calender roller production according to claim 4, wherein: The stirring component further includes a first scraper (19). The first scraper (19) is vertically and fixedly connected to one end of the first connecting rod (12), and the first scraper (19) is in contact with the inner wall of the mixing tank (1).

6. The raw material mixing device for producing rubber rollers according to claim 5, characterized in that: The outer wall of the bottom end of the rotating shaft (11) is fixedly connected with a second connecting rod (27), and both ends of the second connecting rod (27) are fixedly connected with a second scraper (28), and the second scraper (28) is arranged in contact with the inner wall of the bottom of the mixing tank (1).

7. The raw material mixing device for production of rubber rollers according to claim 1, characterized in that: A baffle (20) is fixedly connected inside the first oil guiding disc (5), and the baffle (20) evenly divides the first oil guiding disc (5) into an oil inlet chamber (21) and an oil outlet chamber (22), and a plurality of serpentine oil guiding pipes (6) are symmetrically arranged with respect to the baffle (20); the oil inlet pipe (8) is communicated with the oil inlet chamber (21), and the oil outlet pipe (9) is communicated with the oil outlet chamber (22).

8. The raw material mixing device for calender roller production according to claim 1, wherein: A plurality of support connecting rods (23) are fixedly connected between the first oil guiding disc (5) and the second oil guiding disc (7).

9. The raw material mixing device for calender roller production according to claim 1, wherein: A plurality of connecting plates (30) are fixedly connected to the side wall of the first oil guiding disc (5), and the outer ends of the connecting plates (30) are fixedly connected to the inner wall of the mixing tank (1).

10. The raw material mixing device for the production of rubber rollers according to claim 1, wherein: The heating assembly further includes a second spiral coiled pipe (24), the bottom of the mixing tank (1) is of a conical structure, a second heating cavity (25) is formed in the side wall of the bottom of the mixing tank (1), the second spiral coiled pipe (24) is fixed in the second heating cavity (25), the oil inlet end of the second spiral coiled pipe (24) is communicated with the oil outlet pipe (9), and an oil outlet (26) is arranged on the side wall of the bottom of the mixing tank (1), and the oil outlet (26) is communicated with the oil outlet end of the second spiral coiled pipe (24).

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