A mixer

Abstract

The utility model relates to mixing equipment technical field discloses a kind of mixing machines, comprising: rack, is provided with mixing bucket;Stirring mechanism has rotatable stirring shaft, one end of stirring shaft is inserted into mixing bucket, water cooling cavity is set in stirring shaft, water cooling cavity extends to the end far from mixing bucket along the axial direction of stirring shaft;Shaft cooling assembly, including water cooling seat and cooling pipe, water cooling seat is set to the outer side of the end portion of stirring shaft far from mixing bucket, water cooling seat is in and is provided with backwater cavity, backwater cavity and water cooling cavity are interconnected, cooling pipe one end is set to water cooling cavity, the other end of cooling pipe is inserted into backwater cavity, water cooling seat outer side is provided with water inlet and water outlet, the utility model effectively reduces the temperature rise when stirring shaft and material are stirred, to better guarantee the temperature of material stirring mixing, improve product quality, and it is favorable to prevent the case that the temperature of structural member such as stirring shaft is too high when working, it is favorable to prolong the service life of whole machine.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, and in particular to a mixer. Background Technology

[0002] A mixer is a device used to rapidly agitate and uniformly disperse materials. Inside the mixer is a rotating agitator, with a stirring shaft at the center for power transmission. During operation, the stirring shaft generates significant heat due to friction at its seal. Simultaneously, the agitator's stirring and dispersing action also raises the material's temperature, leading to temperature variations. Some materials are highly temperature-sensitive, and excessively high temperatures can damage their molecular structure, affecting product quality. Therefore, there is a pressing need for a mixer capable of cooling the materials during mixing. Utility Model Content

[0003] The purpose of this invention is to provide a mixer to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The solution to the technical problem of this utility model is:

[0005] A mixer includes: a frame with a mixing tank; a stirring mechanism having a rotatable stirring shaft, one end of which extends into the mixing tank, a water-cooling chamber being provided inside the stirring shaft, the water-cooling chamber extending axially along the stirring shaft to one end away from the mixing tank; and a shaft cooling assembly including a water-cooling base and a cooling pipe, the water-cooling base being located on the outer side of the end of the stirring shaft away from the mixing tank, a return water chamber being provided inside the water-cooling base and communicating with the water-cooling chamber, one end of the cooling pipe being located inside the water-cooling chamber, the other end of the cooling pipe extending into the return water chamber, an inlet and an outlet being provided on the outer side of the water-cooling base, the inlet communicating with the cooling pipe, and the outlet communicating with the return water chamber.

[0006] This technical solution has at least the following beneficial effects: Materials to be mixed are added to the mixing tank. An external water supply device and a tap water pipe can be connected to the inlet, while an external water recovery container is connected to the outlet. During operation, the stirring shaft in the stirring mechanism rotates, mixing the materials in the mixing tank. Cooling water is supplied from the inlet to the cooling pipe, flowing into the water-cooled chamber of the stirring shaft through the cooling pipe, and returning to the water-cooled base through the gap between the inner wall of the water-cooled chamber and the cooling pipe. During this process, the cooling water can drive the stirring shaft and the materials to return the heat generated during mixing to the water-cooled chamber of the water-cooled base, and then discharge it outwards from the outlet. This creates a water flow for heat dissipation and cooling within the stirring shaft, effectively reducing the temperature rise of the stirring shaft and materials during mixing, thus better ensuring the mixing temperature of the materials, improving product quality, and helping to prevent the stirring shaft and other structural components from overheating during operation, thereby extending the service life of the entire machine.

[0007] As a further improvement to the above technical solution, the water-cooled base includes an outer sleeve fitted on the outside of the stirring shaft and an end cap connected to one end of the outer sleeve. The outer sleeve is connected to the frame. A mechanical seal is connected between the end of the outer sleeve away from the end cap and the stirring shaft. The return water chamber is formed between the outer sleeve and the end cap. The cooling pipe is connected to the end cap. The water inlet is located on the end cap, and the water outlet is located on the outer sleeve.

[0008] As a further improvement to the above technical solution, the cooling pipe and the end cap are integrally formed.

[0009] As a further improvement to the above technical solution, a barrel cooling assembly is also included. The barrel cooling assembly includes a barrel jacket disposed on the outside of the mixing barrel and a first guide rib connected between the barrel jacket and the mixing barrel. The first guide rib extends spirally around the mixing barrel. The barrel jacket is provided with a first drain outlet and a first water inlet at intervals in the vertical direction.

[0010] As a further improvement to the above technical solution, a partition plate is connected between the barrel jacket and the mixing barrel. Multiple partition plates are spaced apart in the vertical direction. The multiple partition plates separate the barrel jacket and the mixing barrel to form multiple first cooling chambers. The multiple first cooling chambers are respectively provided with the first guide ribs. The barrel jacket is respectively provided with the first drain outlet and the first water inlet corresponding to the multiple first cooling chambers.

[0011] As a further improvement to the above technical solution, the first drain outlet is located above the first water inlet.

[0012] As a further improvement to the above technical solution, the barrel jacket extends downward to the bottom side of the mixing barrel, and a second cooling chamber is formed between the bottom side of the barrel jacket and the bottom side of the mixing barrel. The bottom side of the barrel jacket is provided with a second water inlet and a second water outlet at intervals along the direction close to the stirring shaft. A second guide rib is provided in the second cooling chamber, and the second guide rib extends spirally around the stirring shaft.

[0013] As a further improvement to the above technical solution, a bearing seat is provided between the frame and the mixing tank, and a connecting bearing is connected between the stirring shaft and the bearing seat.

[0014] As a further improvement to the above technical solution, a bearing sleeve is provided on the outside of the bearing housing, and a third guide rib is connected between the bearing sleeve and the bearing housing. The third guide rib extends around the bearing housing, and the bearing sleeve is provided with a third drain outlet and a third water inlet at intervals along the vertical direction.

[0015] As a further improvement to the above technical solution, a temperature sensor is installed inside the mixing tank.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional view of the entire utility model.

[0019] Figure 2 This is a top view of the entire utility model.

[0020] Figure 3 yes Figure 2 A schematic diagram of the AA cross-sectional structure.

[0021] Figure 4 yes Figure 3 The diagram shows a partial enlargement of part B, where the arrows indicate the direction of water flow.

[0022] In the attached diagram: 100-frame, 110-mixing tank, 210-stirring shaft, 211-water-cooled cavity, 310-water-cooled base, 311-outer casing, 312-end cap, 313-mechanical seal, 314-return water cavity, 320-cooling pipe, 410-tank jacket, 420-first guide rib, 430-partition plate, 440-second cooling cavity, 450-second guide rib, 510-bearing seat, 520-connecting bearing, 530-bearing jacket, 540-third guide rib, 600-temperature sensor. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this application, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] In the description of this application, the use of terms such as "one embodiment," "some embodiments," "an example," "some instances," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] Reference Figures 1 to 4 A mixer includes a frame 100, a stirring mechanism, and a shaft cooling assembly. A mixing tank 110 is mounted on the frame 100. The stirring mechanism has a rotatable stirring shaft 210, one end of which extends into the mixing tank 110. A water-cooling chamber 211 is provided inside the stirring shaft 210, extending axially along the stirring shaft 210 to an end away from the mixing tank 110. The stirring mechanism includes a motor and a stirring paddle. The motor is mounted on the frame 100 and is driven by the stirring shaft 210, enabling the stirring shaft 210 to rotate. The stirring paddle is connected to the end of the stirring shaft 210 that extends into the mixing tank 110, and can be used to stir the mixture. The stirring shaft 210 rotates under its own rotation, thereby stirring the material in the mixing tank 110; the shaft cooling assembly includes a water-cooled base 310 and a cooling pipe 320. The water-cooled base 310 is located on the outer side of the end of the stirring shaft 210 away from the mixing tank 110. A water return chamber 314 is provided inside the water-cooled base 310. The water return chamber 314 is connected to the water-cooled chamber 211. One end of the cooling pipe 320 is located inside the water-cooled chamber 211, and the other end of the cooling pipe 320 extends into the water return chamber 314. An inlet and an outlet are provided on the outer side of the water-cooled base 310. The inlet is connected to the cooling pipe 320, and the outlet is connected to the water return chamber 314.

[0029] As described above, the materials to be mixed are added to the mixing tank 110. An external water supply device or tap water pipe can be connected to the inlet, while an external water recovery container is connected to the outlet. During operation, the stirring shaft 210 within the stirring mechanism rotates, mixing the materials in the mixing tank 110. Cooling water is supplied from the inlet to the cooling pipe 320. The cooling water flows through the cooling pipe 320 into the water-cooled chamber 211 of the stirring shaft 210, and returns to the water-cooled base 31 through the gap between the inner wall of the water-cooled chamber 211 and the cooling pipe 320. During this process, the cooling water can drive the stirring shaft 210 and the heat generated by the material during stirring back to the water cooling cavity 211 of the water cooling base 310, and then discharge it outward from the outlet. This can form a water flow for heat dissipation and cooling in the stirring shaft 210, effectively reducing the temperature rise of the stirring shaft 210 and the material during stirring, thereby better ensuring the temperature of the material mixing, improving product quality, and helping to prevent the stirring shaft 210 and other structural components from overheating during operation, which is beneficial to extending the service life of the whole machine.

[0030] The water-cooled base 310 is located at the end of the stirring shaft 210. It can rotate with the stirring shaft 210 itself. In this case, an inlet and an outlet need to be set at the rotation axis of the water-cooled base 310. Alternatively, the water-cooled base 310 can rotate relative to the stirring shaft 210. Specifically, the water-cooled base 310 includes an outer sleeve 311 sleeved on the outside of the stirring shaft 210 and an end cap 312 connected to one end of the outer sleeve 311. The outer sleeve 311 is connected to the frame 100. A mechanical seal 313 is connected between the end of the outer sleeve 311 away from the end cap 312 and the stirring shaft 210. The outer sleeve 311 and the end cap 312 form the return water chamber 314. The cooling pipe 320 is connected to the end cap 312. The inlet is located on the end cap 312, and the outlet is located on the outer sleeve 311. The water-cooled base 310 is fixed relative to the frame 100. During operation, the stirring shaft 210 rotates relative to the outer sleeve 311 and the end cover 312. The mechanical seal 313 between the outer sleeve 311 and the stirring shaft 210 can seal the return water chamber 314. The water inlet is located on the end cover 312 and is connected to the cooling pipe 320 inside the end cover 312. When cooling water is connected to the water inlet, the cooling water flows into the cooling pipe 320 through the inside of the end cover 312, and then flows along the cooling pipe 320 to the water-cooled chamber 211. It returns from the gap between the inner wall of the water-cooled chamber 211 and the outer side of the stirring shaft 210, carrying away the heat generated by the stirring shaft 210 and the material during stirring. When the water flows out from the end of the stirring shaft 210, it enters the return water chamber 314 formed between the outer sleeve 311 and the end cover 312, and finally flows out from the water outlet on the outer sleeve 311. Thus, water inlet and water outlet are formed in the water-cooled base 310.

[0031] Furthermore, the cooling pipe 320 and the end cap 312 are integrally formed. The integrally formed cooling pipe 320 and end cap 312 reduce assembly steps and improve the tightness of the connection between the cooling pipe 320 and the end cap 312, as well as the stability of the cooling pipe 320 within the water-cooling cavity 211. During assembly, the cooling pipe 320 is inserted into the water-cooling cavity 211, and screws or other connectors are driven into the end cap 312 to connect it to the end of the outer casing 311, thus locking and fixing the cooling pipe 320, the outer casing 311, and the end cap 312 together.

[0032] To further improve the cooling effect on the material, this utility model also includes a barrel cooling assembly. The barrel cooling assembly includes a barrel sleeve 410 disposed on the outside of the mixing barrel 110 and a first guide rib 420 connected between the barrel sleeve 410 and the mixing barrel 110. The first guide rib 420 extends spirally around the mixing barrel 110. The barrel sleeve 410 is provided with a first drain outlet and a first water inlet at intervals in the vertical direction. A cavity is formed between the barrel jacket 410 located on the outside of the mixing barrel 110 and the mixing barrel 110. The first guide rib 420 extends spirally in the cavity to guide the water flow into the cavity. The first water inlet can be connected to an external water supply device, and a tap water pipe can be connected to the water inlet. The external recovery water container is connected to the first drain outlet. During operation, cooling water is supplied from the first water inlet into the cavity between the barrel jacket 410 and the mixing barrel 110. The cooling water flows spirally around the mixing barrel 110 along the guide of the first guide rib 420, carrying away the heat generated by the material during stirring. Finally, the cooling water is discharged outward from the first drain outlet.

[0033] During operation, the temperature of different locations in the mixing tank 110 may vary due to factors such as the amount of material, the stirring position, and the degree of stirring. In order to better adjust and control the temperature of the material in the mixing tank, in this embodiment, a partition plate 430 is connected between the tank jacket 410 and the mixing tank 110. Multiple partition plates 430 are spaced apart in the vertical direction. The multiple partition plates 430 separate the tank jacket 410 and the mixing tank 110 to form multiple first cooling chambers. The multiple first cooling chambers are respectively provided with the first guide ribs 420. The tank jacket 410 is respectively provided with the first drain outlet and the first water inlet corresponding to the multiple first cooling chambers. In use, multiple first water inlets are connected to external water supply equipment and tap water pipes respectively, and the first drain outlets are connected to external recycling water containers respectively. Multiple partition plates 430 also divide the cavity between the barrel jacket 410 and the mixing barrel 110 in the vertical direction to form independent first cooling chambers. This allows multiple independent temperature control structures to be formed on the outside of the mixing barrel 110. The temperature and volume of the cooling water entering can be adjusted according to the temperature of different positions in the mixing barrel 110, thereby adjusting the heat exchange of the mixing barrel 110 and improving the temperature control effect of the materials in the mixture.

[0034] The first water inlet can be located above the first water outlet. In this case, a downward water flow is formed on the outside of the mixing tank 110. However, to improve the heat exchange efficiency of the water flowing around the mixing tank 110, in this embodiment, the first water outlet is located above the first water inlet. This creates an upward water flow on the outside of the mixing tank 110, allowing the water to more fully fill the space between the tank jacket 410 and the mixing tank 110, thus improving the heat exchange efficiency and better cooling the material inside the mixing tank 110.

[0035] In the above embodiment, the barrel jacket 410 can be provided only on the side wall of the mixing barrel 110. In this case, a heat exchange cavity is formed only on the outside of the mixing barrel 110. In order to further improve the heat exchange effect on the material inside the mixing barrel 110, heat exchange can also be performed on the bottom of the mixing barrel 110. Specifically, the barrel jacket 410 extends downward to the bottom side of the mixing barrel 110. A second cooling chamber 440 is formed between the bottom side of the barrel jacket 410 and the bottom side of the mixing barrel 110. A second water inlet and a second drain outlet are provided at intervals along the direction close to the stirring shaft 210 on the bottom side of the barrel jacket 410. A second guide rib 450 is provided in the second cooling chamber 440. The second guide rib 450 extends spirally around the stirring shaft 210. A second cooling chamber 440 for water-cooled heat exchange is formed between the barrel jacket 410 located on the bottom side of the mixing barrel 110 and the mixing barrel 110. The second guide rib 450 extends spirally in the second cooling chamber 440 to guide the water flow into the second cooling chamber 440. The second water inlet can be connected to an external water supply device, and a tap water pipe can be connected to the water inlet. The external recovery water container is connected to the second drain outlet. During operation, cooling water is supplied into the second cooling chamber 440 from the second water inlet. The cooling water flows spirally around the bottom side of the mixing barrel 110 along the guide of the second guide rib 450, carrying away the heat generated by the material during stirring. Finally, the cooling water is discharged outward from the second drain outlet.

[0036] To improve the stability of the stirring shaft 210's rotation, in this embodiment, a bearing seat 510 is provided between the frame 100 and the mixing tank 110, and a connecting bearing 520 connects the stirring shaft 210 and the bearing seat 510. The connection between the stirring shaft 210 and the bearing seat 510 via the connecting bearing 520 further stabilizes the position of the stirring shaft 210, helping to prevent shaking or other issues during mixing within the mixing tank 110.

[0037] When the stirring shaft 210 rotates, the connecting bearing 520 will generate heat. In order to dissipate the heat at this location in a timely manner, in this embodiment, a bearing sleeve 530 is provided on the outside of the bearing seat 510. A third guide rib 540 is connected between the bearing sleeve 530 and the bearing seat 510. The third guide rib 540 extends around the bearing seat 510. The bearing sleeve 530 is provided with a third drain outlet and a third water inlet at intervals in the vertical direction. Similarly, a cavity is formed between the bearing sleeve 530 located on the outside of the bearing housing 510 and the bearing housing 510. The third guide rib 540 extends spirally in the cavity to guide the water flow into the cavity. The third water inlet can be connected to an external water supply device, and a tap water pipe can be connected to the water inlet. The external water recovery container is connected to the third drain outlet. During operation, cooling water is supplied from the third water inlet to the cavity between the bearing sleeve 530 and the bearing housing 510. The cooling water flows spirally around the bearing housing 510 along the guide of the third guide rib 540, carrying away the heat generated by the stirring shaft 210 at the rotating connection position with the bearing housing 510. Finally, the cooling water is discharged outward from the third drain outlet.

[0038] To better control the temperature inside the mixing tank 110, a thermometer 600 is provided inside the mixing tank 110 in this embodiment. The thermometer 600 can detect the temperature near its location inside the mixing tank 110. The thermometer 600 can be a temperature sensor. In practical applications, to improve the accuracy of temperature monitoring inside the mixing tank 110, multiple thermometers 600 can be used. For example, one thermometer 600 can be installed on the bottom inner wall of the mixing tank 110, and another thermometer 600 can be installed on the top of the mixing tank 110, such as on a wall scraping assembly for cleaning the top inner wall of the mixing tank 110. This allows for multiple temperature measurements of the material, facilitating temperature control.

[0039] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A mixing machine characterized by: include: The frame (100) is equipped with a mixing tank (110); The stirring mechanism has a rotatable stirring shaft (210), one end of which extends into the mixing tank (110), and a water-cooling chamber (211) is provided inside the stirring shaft (210), the water-cooling chamber (211) extending along the axial direction of the stirring shaft (210) to one end away from the mixing tank (110); The shaft cooling assembly includes a water-cooled base (310) and a cooling pipe (320). The water-cooled base (310) is located on the outer side of the end of the stirring shaft (210) away from the mixing tank (110). A water return chamber (314) is provided inside the water-cooled base (310), and the water return chamber (314) is connected to the water-cooled chamber (211). One end of the cooling pipe (320) is located inside the water-cooled chamber (211), and the other end of the cooling pipe (320) extends into the water return chamber (314). An inlet and an outlet are provided on the outer side of the water-cooled base (310). The inlet is connected to the cooling pipe (320), and the outlet is connected to the water return chamber (314).

2. A mixing machine according to claim 1, characterised in that: The water-cooled base (310) includes an outer sleeve (311) sleeved on the outside of the stirring shaft (210) and an end cap (312) connected to one end of the outer sleeve (311). The outer sleeve (311) is connected to the frame (100). A mechanical seal (313) is connected between the end of the outer sleeve (311) away from the end cap (312) and the stirring shaft (210). The return water chamber (314) is formed between the outer sleeve (311) and the end cap (312). The cooling pipe (320) is connected to the end cap (312). The water inlet is located on the end cap (312), and the water outlet is located on the outer sleeve (311).

3. A mixer according to claim 2, characterized in that: The cooling pipe (320) and the end cap (312) are integrally formed.

4. A mixer according to claim 1, characterized in that: It also includes a barrel cooling assembly, which includes a barrel jacket (410) disposed on the outside of the mixing barrel (110) and a first guide rib (420) connecting the barrel jacket (410) and the mixing barrel (110). The first guide rib (420) extends spirally around the mixing barrel (110), and the barrel jacket (410) is provided with a first drain outlet and a first water inlet at intervals in the vertical direction.

5. A mixer according to claim 4, characterized in that: A partition plate (430) is connected between the barrel jacket (410) and the mixing barrel (110). Multiple partition plates (430) are spaced apart in the vertical direction. The multiple partition plates (430) separate the barrel jacket (410) and the mixing barrel (110) to form multiple first cooling chambers. The multiple first cooling chambers are respectively provided with first guide ribs (420). The barrel jacket (410) is respectively provided with a first drain outlet and a first water inlet corresponding to the multiple first cooling chambers.

6. A mixer according to claim 4, characterized in that: The first drain outlet is located above the first inlet.

7. A mixer according to claim 4, characterized in that: The barrel sleeve (410) extends downward to the bottom side of the mixing barrel (110). A second cooling chamber (440) is formed between the bottom side of the barrel sleeve (410) and the bottom side of the mixing barrel (110). A second water inlet and a second drain outlet are provided at intervals along the direction close to the stirring shaft (210) on the bottom side of the barrel sleeve (410). A second guide rib (450) is provided in the second cooling chamber (440). The second guide rib (450) extends spirally around the stirring shaft (210).

8. A mixer according to claim 1, characterized in that: A bearing seat (510) is provided between the frame (100) and the mixing tank (110), and a connecting bearing (520) is connected between the stirring shaft (210) and the bearing seat (510).

9. A mixer according to claim 8, characterized in that: A bearing sleeve (530) is provided on the outside of the bearing housing (510). A third guide rib (540) is connected between the bearing sleeve (530) and the bearing housing (510). The third guide rib (540) extends around the bearing housing (510). The bearing sleeve (530) is provided with a third drain outlet and a third water inlet at intervals in the vertical direction.

10. A mixer according to claim 1, characterized in that: A thermometer (600) is installed inside the mixing tank (110).

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