Mixer with improved structure

Abstract

The invention provides a mixer with an improved structure, which belongs to the technical field of mixing equipment and comprises a mixing tank, a tank dumping mechanism, a lifting device, a tank cover plate, a cover plate locking mechanism and a tank positioning mechanism. The mixing tank is connected with the output end of the tank body dumping mechanism, and the tank body dumping mechanism controls the mixing tank to be switched between an initial position and a dumping position; the lifting device is arranged on one side of the base, the moving end of the lifting device is connected with the tank body cover plate and used for automatically opening and closing the tank body cover plate, and a stirring mechanism is arranged on the tank body cover plate; the tank body cover plate and the mixing tank cooperatively work through the cover plate locking mechanism and the lifting device to realize a double locking mechanism; double locking is achieved through cooperative operation of the cover plate locking mechanism and the lifting device, the stability between the cover plate and the mixing tank is improved, and through the cooperative effect of the lifting device and the tank body dumping mechanism, dumping and discharging are conducted after the stirring mechanism is completely separated from the mixing tank, so that the discharging efficiency is improved, and the problem of material residues is solved.

Description

Technical Field

[0001] This invention belongs to the field of mixing equipment technology, and specifically relates to a mixing machine with an improved structure. Background Technology

[0002] Currently, in the production process of lightly calcined magnesia, the mixing device is one of the key links, and its performance directly affects the efficiency of subsequent processes and product quality. However, traditional mixing devices still have many problems in practical applications.

[0003] Patent application number 202323129554.5 discloses a lightly calcined magnesia mixing device. Through the cooperative arrangement of connecting components and scrapers, the drive mechanism can not only drive the stirring rod to mix the raw materials during operation, but also drive the scraper to intermittently contact the inner wall of the mixing tank through the connecting components. While achieving scraping, it also effectively reduces the load on the drive motor. Furthermore, the scraper can not only scrape off the raw materials adhering to the inner wall of the mixing tank, but also stir and mix the raw materials near the inner wall of the mixing tank, thereby improving the mixing efficiency. During material discharge, it can effectively prevent the waste of raw materials.

[0004] In most existing mixing equipment, the cover plate is fixed by direct clamping with a single hydraulic / pneumatic cylinder. However, this method is prone to loosening of the locking mechanism due to vibration during high-speed mixing in the mixing tank, and may even cause the cover plate to pop open unexpectedly. In addition, during discharge, most mixing equipment generally adopts the method of direct discharge from the bottom discharge port or tilting the tank for discharge. However, both of these discharge methods have the problem that the mixing shaft occupies the space of the discharge channel, and the material is easy to remain at the bottom of the tank or around the mixing shaft. The residual material not only reduces the discharge efficiency, but may also remain in the tank and cause contamination of subsequent batches of products. Summary of the Invention

[0005] Based on the above-mentioned technical problems, the purpose of this invention is to provide a mixer with an improved structure. This mixer achieves double locking through the coordinated operation of the cover locking mechanism and the lifting device, which improves the stability between the cover and the mixing tank. Furthermore, through the coordinated action of the lifting device and the tank tilting mechanism, the mixing mechanism is completely detached from the mixing tank before tilting and discharging, thereby improving the discharge efficiency and solving the problem of material residue.

[0006] The specific technical solution is as follows: A mixing machine with an improved structure includes: a mixing tank, a tank tilting mechanism, a lifting device, a tank cover, a cover locking mechanism, and a tank positioning mechanism; the mixing tank is connected to the output end of the tank tilting mechanism, which controls the mixing tank to switch between an initial position and a tilting position; the lifting device is located on one side of the base, and its moving end is connected to the tank cover for automatically opening and closing the tank cover, and the tank cover is equipped with a stirring mechanism; the tank cover and the mixing tank achieve a double locking mechanism through the cover locking mechanism and the lifting device working together; the tank positioning mechanism includes an electric push rod, an L-shaped positioning block, and a limit switch. The unit consists of a limit block mounted on the base and equipped with a laser displacement sensor. An electric push rod is connected to an L-shaped positioning block, which is also equipped with a contact sensor. The laser displacement sensor monitors the relative distance between the L-shaped positioning block, the mixing tank, and the limit block in real time. The contact sensor detects the contact status between the L-shaped positioning block and the bottom of the mixing tank. After the mixing tank returns to its initial position, if a positional deviation is detected, the electric push rod drives the L-shaped positioning block to move away from the mixing tank's trajectory. The tank tilting mechanism adjusts the angle of the mixing tank until the L-shaped positioning block and the limit block are in contact and the contact sensor is fully in contact with the bottom of the mixing tank.

[0007] In addition, the mixer with an improved structure provided by the present invention may also have the following additional technical features: In the above technical solution, the mixing tank includes an outer shell, an inner shell, and a heat exchange channel; the inner wall of the inner shell is coated with Teflon, and the heat exchange channel is connected to the steam inlet, the chilled water inlet of the chiller, and the chilled water outlet of the chiller, respectively; a temperature sensor is installed inside the inner shell.

[0008] In the above technical solution, the tank tilting mechanism includes: a first motor, a first gear, a second gear, and a support base; the mixing tank is connected to the rotating shaft on the support base; the first motor is located on one side of the base, the first gear is sleeved on the outside of the output end of the first motor, the second gear is sleeved on the outside of the rotating shaft, and the second gear meshes with the first gear, thereby controlling the tilting of the mixing tank for material discharge.

[0009] In the above technical solution, the lifting device includes: a stand, a second motor, a lead screw, a movable seat, and a connecting frame; the stand is located on one side of the base, and a movable groove is provided on one side of the stand; the second motor is fixed on the stand, the second motor is connected to the lead screw, and the lead screw is embedded in the movable groove; the movable seat is provided with a threaded hole, the threaded hole is sleeved on the outside of the lead screw, and the movable seat is embedded in the movable groove; the connecting frame is connected to the movable seat and the tank cover plate respectively.

[0010] In the above technical solution, the inner wall of the tank cover is provided with a double-layer sealing ring, thereby enhancing the heat exchange channel and the sealing between the inner shell and the tank cover.

[0011] In the above technical solution, the cover locking mechanism includes: a limiting part and a hinge seat; the hinge seat is disposed on the side wall of the mixing tank, the limiting part is rotatably connected to the hinge seat, and the limiting part is pressed against the top surface of the tank cover; wherein, the limiting part is an elastic body.

[0012] In the above technical solution, a connecting pipe is provided on the tank cover plate, and the connecting pipe is connected to the dust removal equipment.

[0013] The present invention provides a mixer with an improved structure, which, compared with the prior art, has the following advantages: 1. The lifting device drives the tank cover to rise and fall automatically, eliminating the need for manual operation of the heavy cover. The cover locking mechanism works in conjunction with the lifting device to achieve a double locking effect, preventing the tank cover from being accidentally opened during operation.

[0014] 2. The relative position between the L-shaped positioning block and the mixing tank and limit block is monitored in real time by a laser displacement sensor, and the contact sensor detects the contact state between the L-shaped positioning block and the bottom of the tank. This enables monitoring of the reset position of the mixing tank. When a positional deviation is detected after the mixing tank is reset, the system automatically corrects it by driving the L-shaped positioning block to avoid it through an electric push rod, and the tank tilting mechanism finely adjusts the angle of the mixing tank until the L-shaped positioning block and the limit block are in contact and the contact sensor is in complete contact with the bottom of the mixing tank. This solves problems such as poor sealing and agitator shaft misalignment caused by inaccurate reset.

[0015] 3. When it is necessary to discharge the material in the mixing tank, the tank cover and stirring mechanism are completely detached from the mixing tank by the lifting device, and then the tank tilting mechanism is started to discharge the material, thereby avoiding any material residue in the mixing tank and facilitating subsequent cleaning operations. Attached Figure Description

[0016] Figure 1 This is a front view of a mixer with an improved structure according to the present invention; Figure 2 This is a schematic diagram of the stirring mechanism of the present invention; Figure 3 This is a side view of a mixer with an improved structure according to the present invention; Figure 4 This is a schematic diagram of the initial state of a mixer with an improved structure according to the present invention; Figure 5 This is a schematic diagram of the discharge state of a mixer with an improved structure according to the present invention. in, Figures 1 to 5 The correspondence between the reference numerals and component names in the attached drawings is as follows: 10 Mixing tank, 101 Outer shell, 102 Inner shell, 103 Heat exchange channel, 11 Tank cover, 12 Stirring mechanism, 13 Electric push rod, 14 L-shaped positioning block, 15 Limiting block, 16 Laser displacement sensor, 17 Contact sensor, 18 Safety valve, 19 Binder inlet, 20 Refrigeration unit, 21 Steam inlet, 22 First motor, 23 First gear, 24 Second gear, 25 Support base, 26 Stand, 27 Second motor, 28 Lead screw, 29 Moving base, 30 Connecting frame, 31 Double sealing ring, 32 Limiting part, 33 Hinge base, 34 Connecting pipe, 35 Refrigeration unit cold water inlet, 36 Refrigeration unit cold water outlet. Detailed Implementation

[0017] The following are specific implementation cases and appendices. Figure 1-5 The present invention will be further described, but the present invention is not limited to these embodiments.

[0018] A mixer with an improved structure, such as Figure 1-5 As shown, the system includes: a mixing tank 10, a tank tilting mechanism, a lifting device, a tank cover 11, a cover locking mechanism, and a tank positioning mechanism. The mixing tank 10 is connected to the output end of the tank tilting mechanism, which controls the mixing tank 10 to switch between an initial position and a tilting position. The lifting device is located on one side of the base, and its moving end is connected to the tank cover 11 for automatically opening and closing the tank cover 11. A stirring mechanism 12 is provided on the tank cover 11. The tank cover 11 and the mixing tank 10 achieve a double locking mechanism through the cover locking mechanism and the lifting device working together. The tank positioning mechanism includes an electric push rod 13, an L-shaped positioning block 14, and a limiting block 15. The limiting block 15 is located on the base and limits... A laser displacement sensor 16 is provided on the positioning block 15. An electric push rod 13 is connected to an L-shaped positioning block 14, and a contact sensor 17 is provided on the L-shaped positioning block 14. The laser displacement sensor 16 monitors the relative distance between the L-shaped positioning block 14 and the mixing tank 10 and the limiting block 15 in real time. The contact sensor 17 detects the contact state between the L-shaped positioning block 14 and the bottom of the mixing tank 10. After the mixing tank 10 is reset to the initial position, if a positional deviation is detected, the electric push rod 13 drives the L-shaped positioning block 14 to move away from the movement trajectory of the mixing tank 10. The tank tilting mechanism adjusts the angle of the mixing tank 10 until the L-shaped positioning block 14 and the limiting block 15 are in contact and the contact sensor 17 is in complete contact with the bottom of the mixing tank 10.

[0019] By pouring the materials to be mixed into the mixing tank 10, the lifting device is activated, causing the tank cover 11 to be placed on the mixing tank 10. The cover locking mechanism then reinforces the stability between the tank cover 11 and the mixing tank 10, achieving a dual locking effect of mechanical locking and elastic compression. This prevents the tank cover 11 from accidentally opening due to vibration or pressure during operation. After mixing is complete, the cover locking mechanism is released, and the lifting device controls the tank cover 11 to move upwards until the stirring mechanism 12 is completely disengaged from the mixing tank 10. The tank tilting mechanism is then activated, switching the mixing tank 10 from its initial state to its discharge state. By completely disengaging the stirring mechanism 12 from the mixing tank 10, the stirring shaft is prevented from occupying the discharge channel, significantly reducing material residue. After discharge is complete, the tank tilting mechanism... The system operates in reverse, controlling the mixing tank 10 to return to its initial state. An electric push rod 13 drives the L-shaped positioning block 14 to move. A laser displacement sensor 16 monitors the relative position between the L-shaped positioning block 14, the mixing tank 10, and the limiting block 15 in real time. A contact sensor 17 detects the contact state between the L-shaped positioning block 14 and the bottom of the tank, thus monitoring the reset position of the mixing tank. If a positional deviation is detected after the mixing tank resets, the system automatically corrects it by driving the L-shaped positioning block 14 to avoid it, providing adjustment space for fine-tuning the angle of the mixing tank 10. The tank tilting mechanism then fine-tunes the angle of the mixing tank 10 again until the L-shaped positioning block 14 and the limiting block 15 are in contact and the contact sensor 17 is fully in contact with the bottom of the mixing tank 10. This solves problems such as poor sealing and agitator shaft misalignment caused by inaccurate reset.

[0020] Specifically, through the cooperation of the electric push rod 13, L-shaped positioning block 14, limit block 15, laser displacement sensor 16, contact sensor 17 and tank tilting device, the purpose of calibrating the mixing tank 10 after resetting to the initial state is achieved. When the angle of the mixing tank 10 deviates, the angle of the mixing tank 10 can be finely adjusted by the tank tilting device, thereby ensuring that the subsequent tank cover 11 can be accurately placed on the mixing tank 10, avoiding the phenomenon of inaccurate correspondence due to the deviation of the mixing tank 10, and thus improving the adaptability of the equipment.

[0021] Specifically, the lifting device drives the tank cover 11 to rise and fall automatically, eliminating the need for manual operation of the heavy cover and reducing the workload of operators.

[0022] Specifically, when it is necessary to discharge the material in the mixing tank, the tank cover 11 and the stirring mechanism 12 are completely detached from the mixing tank by the lifting device, and then the tank tilting mechanism is activated to discharge the material, thereby avoiding any material residue in the mixing tank and facilitating subsequent cleaning operations.

[0023] Specifically, the mixing tank 10 is also equipped with a safety valve 18 and a binder inlet 19.

[0024] Specifically, the laser displacement sensor 16 is a Keyence laser displacement sensor 16 with model number IL-100, and the contact sensor 17 is a Keyence high-precision contact sensor with model number GT-A10.

[0025] In an embodiment of the present invention, the mixing tank 10 includes an outer shell 101, an inner shell 102, and a heat exchange channel 103; the inner wall of the inner shell 102 is provided with a Teflon coating, and the heat exchange channel 103 is connected to the steam inlet 21, the cold water inlet of the refrigeration unit 20, and the cold water outlet of the refrigeration unit 20, respectively; a temperature sensor is provided inside the inner shell 102.

[0026] In the process of mixing magnesia, a binder needs to be added to enhance its refractory properties and overall strength. The Teflon coating on the inner wall of the inner shell 102 can resist the erosion of the binder and also make the material less likely to adhere to the inner wall.

[0027] By simultaneously connecting the steam inlet 21 and the chiller 20 to the heat exchange channel 103, the heating and cooling modes can be switched quickly to meet the temperature control requirements of the binder at different stages. Furthermore, by setting a temperature sensor, the temperature inside the inner shell 102 can be monitored in real time to adjust the temperature.

[0028] In an embodiment of the present invention, the tank tilting mechanism includes: a first motor 22, a first gear 23, a second gear 24, and a support base 25; the mixing tank 10 is connected to a rotating shaft on the support base 25; the first motor 22 is disposed on one side of the base, the first gear 23 is sleeved on the outside of the output end of the first motor 22, and the second gear 24 is sleeved on the outside of the rotating shaft, and the second gear 24 meshes with the first gear 23, thereby controlling the tilting of the mixing tank 10 for material discharge.

[0029] The first motor 22 drives the first gear 23 to rotate, so that the first gear 23 meshes with the second gear 24 to drive the rotating shaft to rotate the mixing tank 10, thereby achieving the purpose of adjusting the tilt angle of the mixing tank 10.

[0030] Specifically, after the tank tilting mechanism adjusts the position of the mixing tank 10, the positioning pin can pass through the support base 25 and be inserted into the rotating shaft to further lock the position of the rotating shaft, thereby preventing the mixing tank 10 from moving due to equipment failure during mixing or pouring.

[0031] In an embodiment of the present invention, the lifting device includes: a stand 26, a second motor 27, a lead screw 28, a movable seat 29, and a connecting frame 30; the stand 26 is disposed on one side of the base, and a movable groove is provided on one side of the stand 26; the second motor 27 is fixed on the stand 26, the second motor 27 is connected to the lead screw 28, and the lead screw 28 is embedded in the movable groove; the movable seat 29 is provided with a threaded hole, the threaded hole is sleeved on the outside of the lead screw 28, and the movable seat 29 is embedded in the movable groove; the connecting frame 30 is connected to the movable seat 29 and the tank cover plate 11 respectively.

[0032] The second motor 27 drives the lead screw 28 to rotate. The external thread of the lead screw 28 is engaged with the internal thread of the threaded hole, and the moving seat 29 is guided by the moving groove, thereby realizing the purpose of the moving seat 29 to drive the tank cover plate 11 to move up and down.

[0033] In an embodiment of the present invention, the inner wall of the tank cover plate 11 is provided with a double sealing ring 31, thereby enhancing the sealing between the heat exchange channel 103 and the inner shell 102 and the tank cover plate 11.

[0034] By setting up double-layer sealing rings 31, when the lifting device control tank cover plate 11 is placed on the mixing tank 10, the double-layer sealing rings 31 are respectively embedded in the heat exchange channel 103 and the inner shell 102, thereby achieving the purpose of filling and sealing the gap between the tank cover plate 11 and the mixing tank 10.

[0035] In an embodiment of the present invention, the cover locking mechanism includes: a limiting part 32 and a hinge seat 33; the hinge seat 33 is disposed on the side wall of the mixing tank, the limiting part 32 is rotatably connected to the hinge seat 33, and the limiting part 32 is pressed against the top surface of the tank cover 11; wherein, the limiting part 32 is an elastic body.

[0036] By rotating the limiting part 32, the limiting part 32 is pressed against the top surface of the tank cover plate 11, thereby improving the stability between the tank cover plate 11 and the mixing tank 10 and preventing the tank cover plate 11 from detaching or shifting.

[0037] In an embodiment of the present invention, a connecting pipe 34 is provided on the tank cover plate 11, and the connecting pipe 34 is connected to the dust removal equipment.

[0038] By providing a connecting pipe 34 on the tank cover plate 11 and connecting it to an external dust removal device, the dust generated inside the inner shell 102 during the mixing process can be extracted by the dust removal device before opening the cover after the mixing is completed, thereby reducing the amount of dust overflowing when the cover is opened.

[0039] In the description of this invention, the term "a plurality of" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A mixer with an improved structure, characterized in that, include: The system comprises a mixing tank, a tank tilting mechanism, a lifting device, a tank cover, a cover locking mechanism, and a tank positioning mechanism. The mixing tank is connected to the output end of the tank tilting mechanism, which controls the mixing tank to switch between an initial position and a tilting position. The lifting device is located on one side of the base, and its moving end is connected to the tank cover for automatically opening and closing the cover. The tank cover is equipped with a stirring mechanism. The tank cover and the mixing tank achieve a dual locking mechanism through the cover locking mechanism and the lifting device working together. The tank positioning mechanism includes an electric push rod, an L-shaped positioning block, and a limit block. The limit block is located on the base and is equipped with a laser displacement sensor. The electric push rod is connected to the L-shaped positioning block, and the L-shaped positioning block is equipped with a contact sensor.

2. The mixer with an improved structure according to claim 1, characterized in that, The mixing tank includes an outer shell, an inner shell, and a heat exchange channel; the inner wall of the inner shell is coated with Teflon, and the heat exchange channel is connected to the steam inlet, the chilled water inlet of the chiller, and the chilled water outlet of the chiller, respectively; a temperature sensor is installed inside the inner shell.

3. A mixer with an improved structure according to claim 2, characterized in that, The tank tilting mechanism includes: a first motor, a first gear, a second gear, and a support base; the mixing tank is connected to a rotating shaft on the support base; the first motor is disposed on one side of the base, the first gear is sleeved on the outside of the output end of the first motor, the second gear is sleeved on the outside of the rotating shaft, and the second gear meshes with the first gear, thereby controlling the tilting of the mixing tank for material discharge.

4. A mixer with an improved structure according to claim 3, characterized in that, The lifting device includes: a stand, a second motor, a lead screw, a movable seat, and a connecting frame; the stand is disposed on one side of the base, and a movable groove is provided on one side of the stand; the second motor is fixed on the stand, the second motor is connected to the lead screw, and the lead screw is embedded in the movable groove; the movable seat is provided with a threaded hole, the threaded hole is sleeved on the outside of the lead screw, and the movable seat is embedded in the movable groove; the connecting frame is connected to the movable seat and the tank cover plate respectively.

5. A mixer with an improved structure according to claim 4, characterized in that, The inner wall of the tank cover is provided with a double-layer sealing ring, thereby enhancing the heat exchange channel and the sealing between the inner shell and the tank cover.

6. A mixer with an improved structure according to claim 1, characterized in that, The cover locking mechanism includes a limiting part and a hinge seat; the hinge seat is disposed on the side wall of the mixing tank, the limiting part is rotatably connected to the hinge seat, and the limiting part is pressed against the top surface of the tank cover; wherein, the limiting part is an elastic body.

7. A mixer with an improved structure according to claim 1, characterized in that, The tank cover is equipped with a connecting pipe, which is connected to the dust removal equipment.

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