Cooling temperature control device of rubber mixing mill

Abstract

The utility model relates to the technical field of rubber mixing, and discloses a cooling temperature control device of a rubber mixing mill, which comprises a main body, a squeeze roller; a water pipe; the guide structure is arranged at the end of the water pipe, inserted into a cavity of the extrusion roller and used for guiding cooling water, the cavity of the extrusion roller is divided by the guide structure to form a bent flowing channel, the cavity of the extrusion roller is divided by the partition plates with the notches, and therefore when water flows in the cavity of the extrusion roller in the radial direction, the cooling water flows in the cavity of the extrusion roller. Water needs to continuously flow through the notches to reach the other side of the partition plate after being separated and guided by the partition plate, the included angle between every two adjacent notches takes 180 degrees as an example, when the water enters one side of the other partition plate from one side of the partition plate, the water flows through the notches and continuously changes the direction and forms a bent flowing track, and the water flows through the notches to reach the other side of the partition plate. The flow track length of water in the extrusion roller cavity can be increased, the contact time and the contact area of the water and the extrusion roller are increased, and the heat exchange effect of the water and the extrusion roller is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber mixing, in particular to a cooling temperature control device of a rubber mixing machine. Background Art

[0002] After the melted rubber, vulcanization is promoted by adding additives. At this time, a rubber mixer is needed. The two counter-rotating rollers of the rubber mixer are used to roll the rubber to promote the reaction. During this process, the temperature needs to be controlled to prevent over-refining. Usually, flowing liquid is injected into the roller cavity to control the temperature of the flowing liquid to indirectly control the temperature of the roller, so that the rubber maintains a certain temperature.

[0003] The prior art discloses a novel internal mixer temperature control device (CN201711239060.9), comprising a cooling box, a cooling pipe, a spray pipe, an internal mixer and a cooling pipe cooling mechanism; in the present invention, a hydraulic spray system is used to quickly cool the cooling pipe, so that the temperature of the coolant in the shell and the coolant in the cooling pipe can be quickly reduced, thereby achieving a cooling effect of the rubber compound during the operation of the internal mixer, ensuring the quality of the rubber compound, reducing the temperature of the coolant, and improving the cooling effect;

[0004] In the prior art, the temperature of the roller can be controlled by circulating cooling water. However, when the water flows through the chamber of the roller, there is a lack of guidance for the water, and the water flows radially along the channel. The contact time and contact area between the water and the roller are limited. There is room for optimization for guiding the water to flow through the chamber of the roller.

[0005] Therefore, we propose a cooling and temperature control device for a rubber mixing machine. Utility Model Content

[0006] The utility model mainly solves the technical problem that the contact time and contact area between water and roller are limited, which results in limited heat exchange effect, and provides a cooling temperature control device for a rubber mixing machine.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme, a cooling temperature control device for a rubber mixing machine, comprising:

[0008] The main body is used to form a supporting frame structure;

[0009] An extrusion roller is provided on the wall of the main body and is a columnar structure having a cavity for extruding materials. Two extrusion rollers are provided on the wall of the main body;

[0010] A water pipe connected to a water source and used to deliver water to the extrusion roller chamber. Two water pipes are respectively arranged at both ends of each extrusion roller, one of which is used for the inlet of cooling water and the other is used for the outlet of cooling water;

[0011] The guide structure is arranged at the end of the water pipe and inserted into the cavity of the squeezing roller for guiding the cooling water. The guide structure divides the cavity of the squeezing roller to form a curved flow channel.

[0012] As a preferred embodiment of the utility model, the guide structure is a plurality of partitions arranged in the extrusion roller cavity, a connecting rod is provided at the end of each partition, two adjacent partitions are fixedly connected to each other by the connecting rod, a notch is provided on the wall of each partition, the partitions divide the cavity of the extrusion roller into a plurality of small cavities interconnected, and the partitions near the two sides are connected to the two water pipes through the same connecting rod.

[0013] As a preferred embodiment of the present invention, the partition plate forms a circular plate structure adapted to the extrusion roller chamber, and the circumferential surface of the partition plate contacts the inner wall surface of the extrusion roller.

[0014] As a preferred embodiment of the utility model, the notch is a rectangular groove and passes through the partition, the notches on the walls of two adjacent partitions are staggered, and the connecting rods close to the walls of the partitions on both sides are fixedly connected to the end faces of the two water pipes respectively.

[0015] As a preferred embodiment of the utility model, the guide structure is a center column and a guide plate arranged in the extrusion roller cavity, the guide plate is fixedly connected to the center column, the end of the center column is fixedly connected to an end plate, and the end plate is fixedly connected to the end of the water pipe.

[0016] As a preferred embodiment of the utility model, the center column forms a cylindrical structure, the guide plate is a spiral plate, the inner circumference of the guide plate is fixedly connected to the center column, the outer circumference of the guide plate contacts the inner wall of the extrusion roller, and both ends of the center column are fixedly connected to the same end plate, and the two end plates are respectively fixedly connected to the end faces of the two water pipes.

[0017] As a preferred embodiment of the utility model, a plurality of dispersion grooves are provided on the end face of the end plate, and the end plate forms a petal-like structure through the plurality of dispersion grooves, and the end plate forms a cylindrical structure with one end closed. The outer diameter of the end plate is equal to the outer diameter of the water pipe and is smaller than the size of the extrusion roller chamber. The dispersion grooves are arc-shaped grooves, and the end face of the end plate facing the water pipe is fixedly connected with a truncated cone-shaped end head, and the smaller end face of the end head faces the water pipe.

[0018] As a preferred embodiment of the utility model, a sealing bearing is installed on the inner wall of the water pipe near the port, the water pipe passes through the inner ring of the bearing and extends into the extrusion roller cavity, and a sealing gasket is installed on the end face of the extrusion roller through bolts.

[0019] Beneficial Effects

[0020] The utility model provides a cooling and temperature control device for a rubber mixing machine. It has the following beneficial effects:

[0021] 1. The cooling and temperature control device of the rubber mixer is provided with a plurality of partitions, and the partitions with notches are used to separate the extrusion roller chamber. When water flows radially from the extrusion roller chamber, the water needs to continuously flow through each notch to reach the other side of the partition through the partition guidance. The angle between two adjacent notches is 180 degrees, for example. When water enters one side of the partition from one side of the other partition, it continuously changes direction and forms a curved flow trajectory when flowing through the notch, which can increase the length of the water flow trajectory in the extrusion roller chamber, increase the contact time and contact area between the water and the extrusion roller, and improve the heat exchange effect between the water and the extrusion roller.

[0022] 2. The cooling and temperature control device of the rubber mixer is provided with a central column and a guide plate, and uses the spiral guide plate to guide and divert the water in the extrusion roller cavity, so that the water forms a spiral flow trajectory. On the basis of ensuring full contact with the extrusion roller and increasing the contact area, it can reduce the resistance of water flowing through the extrusion roller cavity, ensure the smooth discharge of cooling water from the extrusion roller cavity, and inhibit the formation of turbulence; by providing dispersion grooves and end heads, water is sprayed from the water pipe to impact the truncated cone-shaped end head, so that the water is discharged from each dispersion groove and then from the water pipe without being blocked by the end plate, thereby ensuring the stability of water drainage from the water pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall stereogram of the utility model;

[0024] Figure 2 This is a three-dimensional diagram of the extrusion roller of the utility model;

[0025] Figure 3 This is a schematic diagram of installing a water pipe on the squeezing roller of the utility model;

[0026] Figure 4 This is a schematic diagram of the installation of the partition and water pipe of the utility model;

[0027] Figure 5 This is a schematic diagram of the installation of the guide plate and water pipe of the utility model.

[0028] Legend: 10. Main body; 11. Extrusion roller; 12. Water pipe; 13. Sealing gasket; 20. Partition; 21. Notch; 22. Connecting rod; 30. End plate; 31. Center column; 32. Guide plate; 33. Dispersion groove 33; 34. End. DETAILED DESCRIPTION

[0029] A cooling and temperature control device for a rubber mixing machine, such as Figure 1 , Figure 2 and Figure 3 As shown, including:

[0030] A main body 10, used to form a supporting frame structure;

[0031] The squeezing roller 11 is a columnar structure part with a cavity and is arranged on the wall surface of the main body 10 for squeezing materials. Two squeezing rollers 11 are arranged on the wall surface of the main body 10;

[0032] The water pipe 12 is connected to the water source and used to deliver water to the chamber of the squeezing roller 11. Two water pipes 12 are respectively arranged at both ends of each squeezing roller 11, one of which is used for the entry of cooling water, and the other is used for the discharge of cooling water. A sealed bearing is installed near the port on the inner wall of the water pipe 12. The water pipe 12 passes through the inner ring of the bearing and extends into the chamber of the squeezing roller 11. A sealing gasket 13 is installed on the end face of the squeezing roller 11 through bolts. Specifically, the outer ring diameter of the water pipe 12 is interference fit with the inner ring of the bearing to ensure the sealing effect, and the sealing gasket 13 is a rubber The rubber material is provided, and a metal backing plate is provided on one side of the sealing gasket 13, and the backing plate is locked with the squeezing roller 11 by bolts. The backing plate presses the sealing gasket 13 to one end of the squeezing roller 11, and the water pipe 12 passes through the central hole of the sealing gasket 13, which can ensure the sealing effect of the water pipe 12. At the same time, the squeezing roller 11 can rotate relative to the water pipe 12 without interference. Two circulation pipes are installed on one side of the main body 10 for feeding and discharging cooling water respectively. The two water pipes 12 on the same side of the two squeezing rollers 11 are connected to one of the circulation pipes through a manifold. The two squeezing rollers 11 are connected to the two circulation pipes through the manifold. The two water pipes 12 at the other end of the roller 11 are connected to another circulation pipe through the same manifold, so that the circulating water is sent into the cavity of the squeezing roller 11 through the water pipe 12 and discharged from the other water pipe 12 to flow back into the circulation pipe. The circulation pipe is connected to an external water pool, in which a water pump is provided. The water pipe 12 is respectively connected to the water outlet and the water inlet of the water pump. The water pool should also be provided with a temperature sensor and a semiconductor cooling sheet. Of course, a controller should also be provided. The sensor and the semiconductor cooling sheet are connected to the controller by electrical signals to realize the temperature control of the water in the water pool, so that the water temperature is kept at a reasonable level. Within the range, the circulating water contacts and exchanges heat with the squeezing roller 11, thereby ensuring that the two squeezing rollers 11 have a certain temperature when squeezing the raw materials, thereby ensuring the effect of rubber refining. The wall of the main body 10 is also equipped with a motor. Each squeezing roller 11 is equipped with a pulley on the outside, and the pulley is driven by the belt engagement. Of course, a certain wrap angle should be met between the pulleys to prevent the belt and the pulley from slipping, so that the two squeezing rollers 11 can keep rotating in the opposite direction. The belt winding method is not too restricted here. This is an existing well-known technology and will not be elaborated here.

[0033] Embodiment 1, as Figure 2 , Figure 3 and Figure 4As shown, the guide structure is arranged at the end of the water pipe 12 and inserted into the cavity of the squeezing roller 11 for guiding the cooling water. The guide structure divides the cavity of the squeezing roller 11 to form a curved flow channel. The guide structure is a plurality of partitions 20 arranged in the cavity of the squeezing roller 11. A connecting rod 22 is arranged at the end of each partition 20. Two adjacent partitions 20 are fixedly connected to each other through the connecting rod 22. A notch 21 is opened on the wall of each partition 20. The partition 20 divides the cavity of the squeezing roller 11 into a plurality of small cavities that are interconnected. The partitions 20 near the two sides are connected to the two water pipes 12 through the same connecting rod 22. The partition 20 forms a circular plate structure adapted to the cavity of the squeezing roller 11. The circumferential surface of the partition 20 abuts against the inner wall of the squeezing roller 11. The notch 21 is a rectangular notch and the notch 21 passes through the partition 20. The adjacent two partitions 20 are connected to each other. The notches 21 on the wall of the partition 20 are staggered, and the connecting rods 22 close to the walls of the partitions 20 on both sides are fixedly connected to the end faces of the two water pipes 12 respectively. In this scheme, by setting up a plurality of partitions 20, the partitions 20 with notches 21 are used to separate the chamber of the extrusion roller 11, so that when water flows radially from the cavity of the extrusion roller 11, the water needs to continuously flow through each notch 21 through the partition guidance of the partition 20 to reach the other side of the partition 20. Taking the angle between two adjacent notches 21 as one hundred and eighty degrees as an example, when water enters one side of the other partition 20 from one side of the partition 20, the water flows through the notch 21 and continuously changes direction to form a curved flow trajectory, which can increase the length of the flow trajectory of water in the chamber of the extrusion roller 11, increase the contact time and contact area between the water and the extrusion roller 11, and improve the heat exchange effect between the water and the extrusion roller 11.

[0034] Embodiment 2, as Figure 2 , Figure 3 and Figure 5As shown, the guide structure is arranged at the end of the water pipe 12 and inserted into the cavity of the squeezing roller 11 for guiding the cooling water. The guide structure divides the cavity of the squeezing roller 11 to form a curved flow channel. The guide structure is a central column 31 and a guide plate 32 arranged in the cavity of the squeezing roller 11. The guide plate 32 is fixedly connected to the central column 31. The end of the central column 31 is fixedly connected with an end plate 30. The end plate 30 is fixedly connected to the end of the water pipe 12. The central column 31 forms a cylindrical structure. The guide plate 32 is a spiral plate. The inner circumference of the guide plate 32 is fixedly connected to the central column 31. The outer circumference of the guide plate 32 abuts against the inner wall of the squeezing roller 11. Both ends of the central column 31 are fixedly connected to the same end plate 30. The two end plates 30 are respectively fixedly connected to the end faces of the two water pipes 12. The end face of the end plate 30 is provided with a plurality of dispersion grooves 3 3. The end plate 30 forms a petal-shaped structure through a plurality of dispersion grooves 33. The end plate 30 forms a cylindrical structure with one end closed. The outer diameter of the end plate 30 is equal to the outer diameter of the water pipe 12 and smaller than the size of the chamber of the extrusion roller 11. The dispersion grooves 33 are arc-shaped grooves. The end surface of the end plate 30 facing the water pipe 12 is fixedly connected with a truncated cone-shaped end head 34, and the smaller end surface of the end head 34 faces the water pipe 12. In this scheme, as an optimization and improvement of the above scheme, by setting a central column 31 and a guide plate 32, the spiral guide plate 32 is used to guide and divert the water in the chamber of the extrusion roller 11, so that the water forms a spiral flow trajectory. On the basis of fully contacting with the extrusion roller 11 and increasing the contact area, the resistance of water flowing through the chamber of the extrusion roller 11 can be reduced, so as to ensure that the cooling water is discharged smoothly from the chamber of the extrusion roller 11 and suppress the formation of turbulence.

[0035] By setting the dispersion groove 33 and the end cap 34, water is sprayed out from the water pipe 12 to impact the truncated cone-shaped end cap 34, so that the water is discharged from each dispersion groove 33 and then discharged from the water pipe 12 without being blocked by the end plate 30, thereby ensuring the stability of drainage of the water pipe 12.

[0036] The working principle of the utility model is as follows: the backing plate and the squeezing roller 11 are locked by bolts, the backing plate presses the sealing gasket 13 on one end of the squeezing roller 11, and the water pipe 12 passes through the central hole of the sealing gasket 13, which can ensure the sealing effect of the water pipe 12. At the same time, the squeezing roller 11 can rotate relative to the water pipe 12 without interference. Two circulation pipes are installed on one side of the main body 10 for feeding and discharging cooling water respectively. The two water pipes 12 on the same side of the two squeezing rollers 11 are connected to one of the circulation pipes through a manifold, and the two water pipes 12 at the other end of the two squeezing rollers 11 are connected to the other circulation pipe through the same manifold to realize circulating water. It is fed into the cavity of the squeezing roller 11 through a water pipe 12 and discharged from another water pipe 12 to flow back into the circulation pipe. The circulation pipe is connected to an external water pool. A water pump is provided in the water pool. The water pipe 12 is connected to the water outlet and the water inlet of the water pump respectively. A temperature sensor and a semiconductor cooling sheet should also be provided in the water pool. Of course, a controller should also be provided. The sensor and the semiconductor cooling sheet are connected to the controller by electrical signals to realize the temperature control of the water in the water pool so that the water temperature is kept within a reasonable range. The circulating water is in contact with the squeezing roller 11 for heat exchange, thereby ensuring that when the two squeezing rollers 11 extrude the raw materials, the squeezing rollers 11 have a certain temperature to ensure the effect of rubber refining.

[0037] When cooling water flows through the chamber of the extrusion roller 11, a number of partitions 20 are set up, and the chamber of the extrusion roller 11 is separated by the partitions 20 with notches 21. Then, when water flows radially from the cavity of the extrusion roller 11, the water needs to continuously flow through each notch 21 through the partition guidance of the partition 20 to reach the other side of the partition 20. Taking the angle between two adjacent notches 21 as 180 degrees, when water enters one side of the other partition 20 from one side of the partition 20, it flows through the notch 21 and continuously changes direction to form a curved flow trajectory, or a spiral guide plate 32 is used to guide and divert the water in the cavity of the extrusion roller 11, so that the water forms a spiral flow trajectory.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A cooling and temperature control device for a rubber mixing machine, characterized in that: include: A main body (10) for forming a supporting frame structure; An extrusion roller (11) is arranged on the wall surface of the main body (10) for extruding materials and has a columnar structure with a cavity. Two extrusion rollers (11) are arranged on the wall surface of the main body (10); A water pipe (12) connected to a water source and used to deliver water to the chamber of the squeezing roller (11), two water pipes (12) are respectively arranged at both ends of each squeezing roller (11), one of the water pipes (12) is used for the inlet of cooling water, and the other water pipe (12) is used for the outlet of cooling water; The guide structure is arranged at the end of the water pipe (12) and inserted into the cavity of the squeezing roller (11) for guiding cooling water. The guide structure divides the cavity of the squeezing roller (11) into curved flow channels.

2. The cooling and temperature-controlling device for a rubber mixing machine according to claim 1, characterized in that: The guide structure is a plurality of partitions (20) arranged in the cavity of the squeezing roller (11), a connecting rod (22) is provided at the end of each partition (20), two adjacent partitions (20) are fixedly connected to each other through the connecting rod (22), a notch (21) is provided on the wall surface of each partition (20), the partition (20) divides the cavity of the squeezing roller (11) into a plurality of small cavities that are interconnected, and the partitions (20) near the two sides are connected to the two water pipes (12) through the same connecting rod (22).

3. The cooling and temperature-controlling device of a rubber mixing machine according to claim 2, characterized in that: The partition (20) forms a circular plate structure adapted to the cavity of the squeezing roller (11), and the circumferential surface of the partition (20) contacts the inner wall surface of the squeezing roller (11).

4. The cooling and temperature-controlling device of the rubber mixing machine according to claim 3, characterized in that: The notch (21) is a rectangular notch and penetrates the partition (20). The notches (21) on the walls of two adjacent partitions (20) are staggered and distributed. The connecting rods (22) close to the walls of the partitions (20) on both sides are fixedly connected to the end faces of the two water pipes (12) respectively.

5. The cooling and temperature-controlling device for a rubber mixing machine according to claim 1, characterized in that: The guide structure comprises a central column (31) and a guide plate (32) arranged in the cavity of the squeezing roller (11); the guide plate (32) is fixedly connected to the central column (31); the end of the central column (31) is fixedly connected to an end plate (30); and the end plate (30) is fixedly connected to the end of the water pipe (12).

6. The cooling and temperature-controlling device for a rubber mixing machine according to claim 5, characterized in that: The central column (31) forms a cylindrical structure, the guide plate (32) is a spiral plate, the inner circumferential surface of the guide plate (32) is fixedly connected to the central column (31), the outer circumferential surface of the guide plate (32) abuts against the inner wall of the squeezing roller (11), and both ends of the central column (31) are fixedly connected to the same end plate (30), and the two end plates (30) are respectively fixedly connected to the end surfaces of the two water pipes (12).

7. The cooling and temperature-controlling device for a rubber mixing machine according to claim 5, characterized in that: The end surface of the end plate (30) is provided with a plurality of dispersion grooves (33). The end plate (30) forms a petal-shaped structure through the plurality of dispersion grooves (33). The end plate (30) forms a cylindrical structure with one end closed. The outer diameter of the end plate (30) is equal to the outer diameter of the water pipe (12) and smaller than the size of the chamber of the squeezing roller (11). The dispersion grooves (33) are arc-shaped grooves. The end surface of the end plate (30) facing the water pipe (12) is fixedly connected with a truncated cone-shaped end head (34), and the smaller end surface of the end head (34) faces the water pipe (12).

8. The cooling and temperature-controlling device for a rubber mixing machine according to claim 1, characterized in that: A sealing bearing is installed on the inner wall of the water pipe (12) near the port, and the water pipe (12) passes through the inner ring of the bearing and extends into the cavity of the squeezing roller (11). A sealing gasket (13) is installed on the end surface of the squeezing roller (11) through bolts.

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