Cleaning system for BMC (bulk molding compound) preparation mixing device

Abstract

The invention discloses a cleaning system for a BMC (bulk molding compound) preparation mixing device, which comprises a shell, a mixing tank arranged at the top of the shell, a tank cover slidably arranged at the top of the mixing tank and a mixing mechanism arranged at the top of the tank cover and used for mixing raw materials in the mixing tank, and the cleaning mechanism of the mixing device further comprises a switching mechanism and a cleaning mechanism; the switching mechanism is arranged at the top of the machine shell and comprises a first displacement part, a connecting part, a cable and a hoisting motor. The device solves the problem that in the prior art, after the mixing tank completes raw material mixing operation, it is difficult to efficiently switch to a cleaning mode to clean raw materials attached to the interior of the mixing tank, and the effects that the mixing mode and the cleaning mode can be rapidly switched without disassembling a mixing mechanism are achieved; and thus, the mixing tank is effectively cleaned.

Description

Technical Field

[0001] The present invention relates to the technical field of mixing tank cleaning, and more particularly to a cleaning system for a BMC molding compound mixing device. Background Art

[0002] In the formulation of BMC bulk molding compounds, mixing equipment is a key component. The mixing tank and its mixing mechanism play a crucial role in ensuring uniform mixing of the BMC molding compound. The mixing tank provides a mixing space for the various components of the BMC molding compound, while the mixing mechanism uses specific motions such as rotation and stirring to ensure thorough mixing of the components, ensuring the quality stability and consistent performance of the final BMC molding compound.

[0003] Currently, after the mixing tanks on the market have completed the preparation of BMC molding compounds, there are many inconveniences and significant defects when cleaning the interior of them. The current common cleaning method often requires disassembly or assembly of the mixing mechanism. Because the mixing mechanism is usually complex in structure and contains multiple components such as agitator shafts, agitator blades, connectors, etc., the disassembly process requires a lot of time and manpower, and professional tools and technicians are required to ensure the correctness and safety of the disassembly. For example, in some large-scale BMC molding compound preparation and mixing devices, the disassembly of the mixing mechanism may take several hours or even longer, which not only affects production efficiency but also increases production costs.

[0004] Furthermore, disassembling the mixing mechanism can easily lead to component damage or loss, further increasing equipment maintenance costs and downtime. Furthermore, reassembling the mixing mechanism requires strict adherence to specified process and precision requirements. Failure to do so could compromise the performance of the mixing mechanism, leading to a decrease in mixing effectiveness and, consequently, the quality of the BMC molding compound. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the object of the present invention is to provide a cleaning system for a BMC molding compound mixing device capable of switching between stirring and cleaning mechanisms.

[0006] To achieve the above object, the present invention provides the following technical solutions: The present invention is further configured as follows: it includes a casing, a mixing tank arranged on the top of the casing, a tank cover slidably arranged on the top of the mixing tank, and a mixing mechanism arranged on the top of the tank cover and used to mix the raw materials inside the mixing tank, and the cleaning mechanism of the mixing device also includes a switching mechanism and a cleaning mechanism; the switching mechanism is arranged on the top of the casing, and the switching mechanism includes a first displacement part, a connecting part, a cable and a lifting motor; the first displacement part has a pair and is respectively slidably arranged on the outside of the casing, and the pair of first displacement parts are both located at the top of the tank cover; the connecting part has a pair and is respectively arranged on the top of the first displacement part; the cable is arranged between the pair of connecting parts; the lifting motor is arranged on the top of the casing, and the output end of the lifting motor is connected to the cable. When the lifting motor is started, the cable can drive the connecting part and the first displacement part to drive the tank cover and the mixing mechanism to an upward state; the cleaning mechanism is arranged on the side of the casing, and the cleaning mechanism includes a rotating cleaning part, which is used to perform rotating contact cleaning on the inner wall of the mixing tank.

[0007] By adopting the above technical solution, the problem in the prior art that the mixing tank is difficult to efficiently switch to the cleaning mode to clean the raw materials attached inside after completing the raw material mixing operation is solved, and the mixing mode and cleaning mode can be quickly switched without disassembling the mixing mechanism, thereby effectively cleaning the mixing tank.

[0008] The present invention is further configured as follows: the switching mechanism also includes a connecting frame, a first linear drive and a second displacement part; the connecting frame is arranged on the side of the casing, and the connecting frame is located on the side of the mixing tank; the first linear drive is arranged at the bottom of the connecting frame; the second displacement part is slidably arranged on the top of the connecting frame, and a linear groove is opened on the top of the connecting frame for limiting the movement of the second displacement part.

[0009] The present invention is further configured as follows: the switching mechanism also includes a limiting frame, a third displacement part and a second linear drive; the limiting frame is arranged on the top of the second displacement part; the third displacement part is slidably arranged on the outside of the limiting frame, and the third displacement part is located above the mixing tank, and the bottom of the third displacement part is connected to the rotating cleaning part; the second linear drive is arranged on the top of the limiting frame.

[0010] By adopting the above technical solution, after the mixing mechanism has mixed the raw materials inside the mixing tank, the mixing mechanism and the cleaning mechanism can be switched between without disassembling the mixing mechanism, and without interfering with each other. On the one hand, there is no need to disassemble the mixing mechanism to connect or assemble the cleaning mechanism to clean the inside of the mixing tank, and on the other hand, there is no need to manually operate a lifting device to lift the cleaning mechanism above the mixing tank for manual docking.

[0011] The present invention is further configured as follows: the cleaning mechanism also includes a rotary driver and an abutment portion; the rotary driver is arranged on the top of the third displacement portion, and the output end of the rotary driver is connected to the rotary cleaning portion, and when the rotary driver is started, it can drive the rotary cleaning portion to a rotating state; the abutment portion has a pair and is respectively slidably arranged on the top of the rotary cleaning portion, and the pair of abutment portions are both cylindrical structures, and the pair of abutment portions are used to contact and rotate with the inner wall of the mixing tank.

[0012] The present invention is further configured as follows: the cleaning mechanism also includes a first telescopic cylinder and a pushing part; the first telescopic cylinder has a pair and is respectively arranged on the top of the rotating cleaning part; the pushing part has a pair and is respectively arranged at the output end of the first telescopic cylinder, and the pair of pushing parts are both rotatably connected with the abutting part. When the first telescopic cylinder is started, the pushing part can be driven to drive the abutting part to move towards the mixing tank.

[0013] The present invention is further configured as follows: the cleaning mechanism also includes a rotating scraper and a rotating cleaning roller; the rotating scraper is arranged at the bottom of the rotating cleaning part, and the rotating scraper is connected to the abutment part, and when the abutment part rotates, it can drive the rotating scraper to a synchronous rotation state; the rotating cleaning roller is arranged at the bottom of the rotating cleaning part, and the rotating cleaning roller is located next to the rotating scraper.

[0014] By adopting the above technical solution, the raw materials attached to the inner wall of the mixing tank can be cleaned and scraped at the same time, which solves the problem in the prior art that the cleaning roller and the scraper are difficult to clean at the same time when cleaning the mixing tank.

[0015] The present invention is further configured as follows: the cleaning mechanism also includes a water tank, a first annular spray pipe and a nozzle; the water tank has a pair and is respectively arranged on the top of the third displacement part, and the pair of water tanks are located on both sides of the rotary driver; the first annular spray pipe is arranged in the third displacement part, and the first annular spray pipe is respectively connected to the pair of water tanks; there are multiple nozzles and they are respectively arranged at the bottom of the first annular spray pipe.

[0016] By adopting the above technical solution, water is sprayed out through the nozzle, thereby being able to spray the rotating scraper and the rotating cleaning roller during rotation, thereby improving the cleaning effect of the rotating cleaning roller and the rotating scraper on the raw materials attached to the inner wall of the mixing tank.

[0017] The present invention is further configured as follows: the cleaning mechanism also includes a mounting plate, a rotating motor and an eccentric block; the mounting plates are provided in plurality and are respectively arranged at the bottom of the mixing tank; the rotating motors are provided in plurality and are respectively arranged at the top of the mounting plates, and the plurality of rotating motors are all located outside the mixing tank; the eccentric blocks are provided in plurality and are respectively arranged at the output end of the rotating motor.

[0018] The present invention is further configured as follows: the cleaning mechanism also includes a water pump and a second annular spray pipe; the water pump is arranged on the casing, and the water pump is located next to the mixing tank; the second annular spray pipe is arranged on the outside of the mixing tank, and the outside of the mixing tank is provided with a plurality of openings for installing the second annular spray pipe, and the second annular spray pipe is connected to the water pump.

[0019] The present invention is further configured as follows: the cleaning mechanism also includes a setting frame, a liquid storage tank and a water spray pipe; the setting frame has a pair and is respectively installed on the side of the casing, and the pair of setting frames are both located on the side of the mixing tank; the liquid storage tank has a pair and is respectively installed on both sides of the setting frame; the water spray pipe has multiple and is respectively set on the side of the liquid storage tank, and the pair of water spray pipes are both located above the connecting frame.

[0020] By adopting the above technical solution, the water spraying points of the water spraying pipe are all equipped with high-pressure nozzles. When the water spraying pipe stops moving, it can spray and clean the outer sides of the rotating scraper and the rotating cleaning roller after use with high pressure, effectively ensuring the service life of the rotating scraper and the rotating cleaning roller, and facilitating their next use.

[0021] In summary, this application includes at least one of the following beneficial technical effects: By setting up a switching mechanism, after the mixing mechanism completes mixing of the raw materials inside the mixing tank and the mixed raw materials are discharged through the discharge port, the problem of difficulty in efficiently cleaning the raw materials attached to the inside of the mixing tank after the mixing operation in the prior art is solved. First, the lifting motor is started, and the winding cable is rotated. The wound cable drives the tank cover to rise and slide steadily along the outside of the casing with the help of the connecting part and the first displacement part, thereby quickly lifting the mixing mechanism. Subsequently, the cleaning mechanism is moved to the top of the mixing tank through the switching mechanism, and the cleaning mechanism is used to effectively clean the raw materials attached to the inside of the mixing tank. Convenient switching between mixing mode and cleaning mode is achieved, and the two modes do not interfere with each other. It avoids the tedious operation of disassembling the external connection of the mixing mechanism or assembling the cleaning mechanism to clean the inside of the mixing tank, and there is no need to manually operate the lifting device to lift the cleaning mechanism to the top of the mixing tank for manual docking.

[0022] By providing a cleaning mechanism, when the rotary driver drives the rotary cleaning part to rotate inside the mixing tank, the abutting parts are in abutment with the interior of the mixing tank. When the rotary cleaning part drives the abutting parts to rotate, the abutting parts can contact the inner wall of the mixing tank and perform a contact rotational motion. When the pair of abutting parts rotate, they can respectively drive the rotary scraper and the rotary cleaning roller to perform contact rolling wiping and contact scraping cleaning on the inner wall of the mixing tank. The raw materials attached to the inner wall of the mixing tank can be cleaned and scraped at the same time, solving the problem in the prior art that it is difficult to clean the mixing tank with the cleaning roller and the scraper at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an overall three-dimensional structural diagram of a cleaning system for a BMC molding compound mixing device according to the present invention; Figure 2 This is a perspective structural diagram of the mixing mechanism of the cleaning system of the BMC molding compound mixing device of the present invention, with the mixing mechanism in a lifted and ascending state and facing downward; Figure 3 A top view of the structure of a cleaning system for a BMC molding compound mixing device according to the present invention; Figure 4 A partial front view of the structure of the cleaning system of the BMC molding compound mixing device of the present invention; Figure 5 This is a three-dimensional structural diagram of the cleaning mechanism of the cleaning system for the BMC molding compound mixing device of the present invention, in a moving state located above the mixing tank; Figure 6 This is a three-dimensional structural diagram of the cleaning system for the BMC molding compound mixing device of the present invention, in which the third displacement portion drives the rotating cleaning portion to move into the interior of the mixing tank; Figure 7 A three-dimensional structural diagram of a rotating scraper and a rotating cleaning roller of a cleaning system for a BMC molding compound mixing device according to the present invention; Figure 8 A three-dimensional structural diagram of the first annular spray pipe and the rotating motor of the cleaning system of the BMC molding compound mixing device of the present invention; Figure 9 for Figure 4 A in the middle shows the enlarged structure diagram; Figure 10 for Figure 5 Enlarged structural diagram at point B in the middle.

[0024] Explanation of the accompanying drawings: 1. Casing; 2. Mixing tank; 3. Tank cover; 4. Mixing mechanism; 5. Switching mechanism; 51. First displacement part; 52. Connecting part; 53. Cable; 54. Lifting motor; 55. Connecting frame; 56. First linear drive; 57. Second displacement part; 58. Limiting frame; 59. Third displacement part; 591. Second linear drive; 6. Cleaning mechanism; 61. Rotating cleaning part; 62. Rotating drive; 63. Abutting part; 64. First telescopic cylinder; 65. Pushing part; 66. Rotating scraper; 67. Rotating cleaning roller; 68. Water tank; 69. First annular spray pipe; 691. Nozzle; 692. Mounting plate; 693. Rotating motor; 694. Eccentric block; 695. Water pump; 696. Second annular spray pipe; 697. Setting frame; 698. Liquid storage tank; 699. Water spray pipe. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0027] See also Figure 1-10 , the present invention provides the following technical solutions: Embodiment 1 is to solve the problem that it is difficult to quickly switch between the mixing mechanism 4 and the cleaning mechanism 6 of the mixing tank 2 after use.

[0028] The invention comprises a housing 1, a mixing tank 2 arranged on the top of the housing 1, a tank cover 3 slidably arranged on the top of the mixing tank 2, and a mixing mechanism 4 arranged on the top of the tank cover 3 and used to mix the raw materials inside the mixing tank 2. The cleaning mechanism 6 of the mixing device also includes a switching mechanism 5 and a cleaning mechanism 6; the switching mechanism 5 is arranged on the top of the housing 1, and the switching mechanism 5 includes a first displacement part 51, a connecting part 52, a cable 53 and a lifting motor 54; the first displacement part 51 has a pair and is respectively slidably arranged on the outside of the housing 1, and the pair of first displacement parts 51 are both located on the top of the tank cover 3. ; The connecting part 52 has a pair and is respectively arranged at the top of the first displacement part 51; the cable 53 is arranged between the pair of connecting parts 52; the lifting motor 54 is arranged at the top of the casing 1, and the output end of the lifting motor 54 is connected to the cable 53. When the lifting motor 54 is started, the connecting part 52 and the first displacement part 51 can be driven by the cable 53 to drive the tank cover 3 and the mixing mechanism 4 to an upward state; the cleaning mechanism 6 is arranged on the side of the casing 1, and the cleaning mechanism 6 includes a rotating cleaning part 61, which is used to perform rotating contact cleaning on the inner wall of the mixing tank 2.

[0029] Specifically, it should be noted that a feed port is provided on the side of the mixing tank 2, and a discharge port is provided at the bottom of the mixing tank 2. The discharge port is equipped with a valve to control the discharge of the mixed raw materials. This is prior art and will not be described in detail here. The mixing mechanism 4 includes a mixing rod, a scraper, and a rotating blade. The mixing rod is rotatably mounted on the top of the tank cover 3, and a servo motor is provided on the top of the tank cover 3 to drive the mixing rod to rotate. The scraper is located at the bottom of the mixing rod. When the tank cover 3 is not lifted, the scraper can rotate with the mixing rod and contact the bottom of the mixing tank 2. When the mixing rod rotates, it drives the scraper to scrape the raw materials at the bottom of the mixing tank 2 to prevent them from accumulating. The rotating blade is located on the outside of the mixing rod and is used to cut the raw materials fed into the mixing tank 2. When the mixing rod rotates, it drives the rotating blade to rotate synchronously. After the mixing mechanism 4 completes mixing of the raw materials inside the mixing tank 2 and the mixed raw materials are discharged through the discharge port, the problem of the difficulty in efficiently cleaning the raw materials adhering to the interior of the mixing tank 2 after the mixing operation in the prior art is addressed. First, the lifting motor 54 is started, and by rotating the winding cable 53, the winding cable 53 drives the tank cover 3 to slide steadily upward along the outside of the casing 1 with the help of the connecting portion 52 and the first displacement portion 51, thereby quickly lifting the mixing mechanism 4. Subsequently, the cleaning mechanism 6 is moved to the top of the mixing tank 2 through the switching mechanism 5, and the cleaning mechanism 6 is used to effectively clean the raw materials attached to the inside of the mixing tank 2. This achieves convenient switching between the mixing mode and the cleaning mode, and the two modes do not interfere with each other. This avoids the tedious operation of disassembling the external connection of the mixing mechanism 4 or assembling the cleaning mechanism 6 to clean the inside of the mixing tank 2, and also eliminates the need for manual operation of the lifting device to lift the cleaning mechanism 6 to the top of the mixing tank 2 for manual docking.

[0030] See Figure 5 and Figure 6 The switching mechanism 5 also includes a connecting frame 55, a first linear drive 56 and a second displacement portion 57; the connecting frame 55 is arranged on the side of the casing 1, and the connecting frame 55 is located on the side of the mixing tank 2; the first linear drive 56 is arranged at the bottom of the connecting frame 55; the second displacement portion 57 is slidably arranged on the top of the connecting frame 55, and a linear groove is opened on the top of the connecting frame 55 for limiting the movement of the second displacement portion 57.

[0031] Specifically, the output end of the first linear actuator 56 is provided with a ball screw that is threadedly connected to the second displacement portion 57 and drives the second displacement portion 57 along a linear groove defined in the top of the connecting frame 55. The first linear actuator 56 is preferably a servo motor. When activated, the first linear actuator 56 drives the second displacement portion 57 toward the mixing tank 2. When the mixing mechanism 4 is raised by the lifting motor 54, the first linear actuator 56 drives the second displacement portion 57 to slide toward the mixing tank 2.

[0032] In the second embodiment, the third displacement portion 59 is driven to adjust its position to drive the cleaning mechanism 6 to switch its mode.

[0033] See Figure 5 and Figure 6 The switching mechanism 5 also includes a limiting frame 58, a third displacement portion 59 and a second linear drive 591; the limiting frame 58 is arranged at the top of the second displacement portion 57; the third displacement portion 59 is slidably arranged on the outside of the limiting frame 58, and the third displacement portion 59 is located above the mixing tank 2, and the bottom of the third displacement portion 59 is connected to the rotating cleaning portion 61; the second linear drive 591 is arranged at the top of the limiting frame 58.

[0034] Specifically, the second linear drive 591 is preferably a servo motor, and the output end of the second linear drive 591 is equipped with a screw that is threadedly engaged with the third displacement part 59 through a coupling. When the second linear drive 591 is started, it can drive the screw to rotate. When the second displacement part 57 drives the limiting frame 58 to move to the top near the mixing tank 2, the second linear drive 591 controls the third displacement part 59 to descend toward the mixing tank 2 through the screw until the third displacement part 59 drives the rotating cleaning part 61 to move to the inside of the mixing tank 2 and stops moving. This ensures that after the mixing mechanism 4 mixes the raw materials inside the mixing tank 2, the mixing mechanism 4 and the cleaning mechanism 6 can be switched between each other without disassembling the mixing mechanism 4, and without interfering with each other. On the one hand, there is no need to disassemble the mixing mechanism 4 to connect or assemble the cleaning mechanism 6 to clean the inside of the mixing tank 2. On the other hand, there is no need to manually operate the lifting device to lift the cleaning mechanism 6 to the top of the mixing tank 2 for manual docking.

[0035] See Figure 7-Figure 9 The cleaning mechanism 6 also includes a rotation driver 62 and an abutment portion 63; the rotation driver 62 is arranged at the top of the third displacement portion 59, and the output end of the rotation driver 62 is connected to the rotation cleaning portion 61. When the rotation driver 62 is started, the rotation cleaning portion 61 can be driven to rotate; the abutment portion 63 has a pair and is respectively slidably arranged on the top of the rotation cleaning portion 61, and the pair of abutment portions 63 are both cylindrical structures, and the pair of abutment portions 63 are used to contact and rotate with the inner wall of the mixing tank 2.

[0036] Specifically, rotary driver 62 is preferably a servo motor. After the third displacement portion 59 contacts and stops moving with the top of mixing tank 2, first rotary driver 62 is started, and when rotary driver 62 is started, just can drive rotation cleaning portion 61 to be in a rotating state. And when rotation cleaning portion 61 rotates, just can drive a pair of abutment portions 63 and the inside fitting of mixing tank 2 respectively, under this state, due to the inside fitting of abutment portions 63 and mixing tank 2, and then when rotation cleaning portion 61 rotates, just can drive abutment portions 63 on the one hand along the inside rotation of mixing tank 2, on the other hand also can drive abutment portions 63 to produce friction and carry out rotational motion when contacting with mixing tank 2. It should be noted that abutment portions 63 are preferably cylindrical structures, and abutment portions 63 are rubber materials, can increase the contact friction with the inner wall of mixing tank 2.

[0037] In the third embodiment, the rotating cleaning part 61 is stably moved to the interior of the mixing tank 2 to rotate.

[0038] See Figure 7 The cleaning mechanism 6 also includes a first telescopic cylinder 64 and a pushing portion 65; the first telescopic cylinder 64 has a pair of and are respectively arranged at the top of the rotating cleaning portion 61; the pushing portion 65 has a pair and are respectively arranged at the output end of the first telescopic cylinder 64, and the pair of pushing portions 65 are both rotatably connected with the abutting portion 63. When the first telescopic cylinder 64 is started, it can drive the pushing portion 65 to drive the abutting portion 63 to move towards the mixing tank 2.

[0039] Specifically, when the third displacement portion 59 moves above the mixing tank 2 and has not yet been moved into the mixing tank 2 by the second linear actuator 591, the first telescopic cylinder 64 and the pushing portion 65 each drive the pair of abutting portions 63 to move relatively closer together, thereby preventing the pair of abutting portions 63 from contacting the mixing tank 2 and causing damage when descending into the mixing tank 2. After the third displacement portion 59 is moved into the mixing tank 2 by the second linear actuator 591, the first telescopic cylinder 64, via the pushing portion 65, drives the abutting portions 63 to move relatively farther apart until the pair of abutting portions 63 respectively contact the inner wall of the mixing tank 2 and stop moving.

[0040] See Figure 7 The cleaning mechanism 6 also includes a rotating scraper 66 and a rotating cleaning roller 67; the rotating scraper 66 is arranged at the bottom of the rotating cleaning portion 61, and the rotating scraper 66 is connected to the abutment portion 63, and when the abutment portion 63 rotates, it can drive the rotating scraper 66 to rotate synchronously; the rotating cleaning roller 67 is arranged at the bottom of the rotating cleaning portion 61, and the rotating cleaning roller 67 is located next to the rotating scraper 66.

[0041] Specifically, when the rotary driver 62 drives the rotary cleaning portion 61 to rotate inside the mixing tank 2. At this time, since the abutment portions 63 are in abutment with the interior of the mixing tank 2, when the rotary cleaning portion 61 drives the abutment portions 63 to rotate, the abutment portions 63 can contact the inner wall of the mixing tank 2 and perform a contact rotational motion. When the pair of abutment portions 63 rotate, they can respectively drive the rotary scraper 66 and the rotary cleaning roller 67 to perform contact rolling wiping and contact scraping cleaning on the inner wall of the mixing tank 2. The raw materials attached to the inner wall of the mixing tank 2 can be cleaned and scraped at the same time, solving the problem in the prior art that it is difficult to clean the cleaning roller and the scraper at the same time when cleaning the mixing tank 2.

[0042] See Figure 9 The cleaning mechanism 6 also includes a water tank 68, a first annular spraying pipe 69 and a nozzle 691; the water tank 68 has a pair and is respectively arranged at the top of the third displacement portion 59, and the pair of water tanks 68 are located on both sides of the rotary driver 62; the first annular spraying pipe 69 is arranged in the third displacement portion 59, and the first annular spraying pipe 69 is respectively connected to the pair of water tanks 68; the nozzle 691 has multiple and is respectively arranged at the bottom of the first annular spraying pipe 69.

[0043] Specifically, to improve the cleaning effect of the rotating cleaning roller 67 and the rotating scraper 66 on raw materials adhered to the inner wall of the mixing tank 2, a submersible water pump 695 can be installed inside the pair of water tanks 68. The submersible water pump 695 is used to transport the water inside the water tank 68 to the first annular spray pipe 69 and the nozzle 691, and finally the water is sprayed out through the nozzle 691. This can then spray the rotating scraper 66 and the rotating cleaning roller 67 during rotation, thereby improving the cleaning effect of the rotating cleaning roller 67 and the rotating scraper 66 on raw materials adhered to the inner wall of the mixing tank 2.

[0044] Example 4: In order to further improve the cleaning effect and also to prevent stubborn raw materials from adhering to the inner wall of the mixing tank 2 and being difficult to fall off.

[0045] See Figure 8 The cleaning mechanism 6 also includes a mounting plate 692, a rotating motor 693 and an eccentric block 694; the mounting plate 692 has multiple and are respectively arranged at the bottom of the mixing tank 2; the rotating motor 693 has multiple and are respectively arranged on the top of the mounting plate 692, and the multiple rotating motors 693 are all located on the outside of the mixing tank 2; the eccentric block 694 has multiple and are respectively arranged at the output end of the rotating motor 693.

[0046] Specifically, it should be noted that the rotating motor 693 is preferably a servo motor. When the rotating motor 693 is activated, it drives the eccentric weight 694 to strike the outer side of the mixing tank 2, thereby causing the mixing tank 2 to vibrate. When the mixing tank 2 vibrates, the stubborn raw materials adhering to the inner wall are shaken off. This, in conjunction with the spraying nozzle 691, the rotating scraper 66, and the rotating cleaning roller 67, further improves the cleaning of the raw materials adhering to the inner wall of the mixing tank 2. To reduce damage to the mixing tank 2 caused by the eccentric weight 694, a rubber ring can be provided on the outer side of the eccentric weight 694 to prevent hard contact between the eccentric weight 694 and the mixing tank 2.

[0047] Example 5: To prevent the raw materials from adhering to the lower inner wall of the mixing tank 2.

[0048] See Figure 6-Figure 8 The cleaning mechanism 6 also includes a water pump 695 and a second annular spray pipe 696; the water pump 695 is arranged on the casing 1, and the water pump 695 is located next to the mixing tank 2; the second annular spray pipe 696 is arranged on the outside of the mixing tank 2, and the outside of the mixing tank 2 is provided with a plurality of openings for installing the second annular spray pipe 696, and the second annular spray pipe 696 is connected to the water pump 695.

[0049] Specifically, the water pump 695 can be connected to an external water source through a pipe. When the water pump 695 is activated, it can spray water into the interior of the mixing tank 2 through the second annular spray pipe 696. Because the second annular spray pipe 696 is located below the first annular spray pipe 69 and close to the bottom of the mixing tank 2, it can perform targeted spraying on the lower part of the mixing tank 2, thus achieving comprehensive and effective spray cleaning of the inner wall of the mixing tank 2.

[0050] Embodiment 6: After the cleaning work of the cleaning mechanism 6 is completed, the raw materials attached to the outer sides of the rotating scraper 66 and the rotating cleaning roller 67 are cleaned.

[0051] See Figure 8 The cleaning mechanism 6 also includes a setting frame 697, a liquid storage tank 698 and a water spray pipe 699; the setting frame 697 has a pair and is respectively installed on the side of the casing 1, and the pair of setting frames 697 are both located on the side of the mixing tank 2; the liquid storage tank 698 has a pair and is respectively installed on both sides of the setting frame 697; there are multiple water spray pipes 699 and are respectively set on the side of the liquid storage tank 698, and the pair of water spray pipes 699 are both located above the connecting frame 55.

[0052] Specifically, the second linear actuator 591 first drives the third displacement unit 59 upward, and then the first linear actuator 56 drives the second displacement unit 57 and the limiting frame 58 to move away from the mixing tank 2. The third displacement unit 59 stops moving until it has driven the rotating scraper 66 and the rotating cleaning roller 67 to the side of the water spray pipe 699. It is important to note that the water spray pipe 699 is equipped with a high-pressure nozzle 691 at the water spray point. When stopped, the water spray pipe 699 can spray high-pressure water to clean the outside of the rotating scraper 66 and the rotating cleaning roller 67 after use, effectively ensuring the service life of the rotating scraper 66 and the rotating cleaning roller 67 and facilitating their subsequent use.

[0053] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

Claims

1. A cleaning system for a BMC molding compound mixing device, comprising a housing (1), a mixing tank (2) disposed on the top of the housing (1), a tank cover (3) disposed on the top of the mixing tank (2), and a mixing mechanism (4) disposed on the top of the tank cover (3) and used to mix the raw materials in the mixing tank (2), characterized in that: The cleaning mechanism (6) of the mixing device further includes a switching mechanism (5) and a cleaning mechanism (6); The switching mechanism (5) is arranged on the top of the housing (1), and the switching mechanism (5) includes a first displacement portion (51), a connecting portion (52), a cable (53) and a lifting motor (54); The first displacement parts (51) have a pair and are respectively slidably arranged on the outside of the housing (1), and the pair of first displacement parts (51) are both located on the top of the tank cover (3); The connecting parts (52) have a pair and are respectively arranged on the top of the first displacement part (51); A cable (53) is provided between a pair of connecting portions (52); The lifting motor (54) is arranged on the top of the casing (1), and the output end of the lifting motor (54) is connected to the cable (53). When the lifting motor (54) is started, it can drive the connecting part (52) and the first displacement part (51) through the cable (53) to drive the tank cover (3) and the mixing mechanism (4) to an upward state; The cleaning mechanism (6) is arranged on the side of the housing (1), and the cleaning mechanism (6) includes a rotating cleaning portion (61). The rotating cleaning portion (61) is used to perform rotating contact cleaning on the inner wall of the mixing tank (2).

2. The cleaning system for a BMC molding compound mixing device according to claim 1, characterized in that: The switching mechanism (5) further comprises a connecting frame (55), a first linear driver (56) and a second displacement portion (57); the connecting frame (55) is arranged beside the housing (1), and the connecting frame (55) is located beside the mixing tank (2); the first linear driver (56) is arranged at the bottom of the connecting frame (55); the second displacement portion (57) is slidably arranged on the top of the connecting frame (55), and a linear groove is provided on the top of the connecting frame (55) for limiting the movement of the second displacement portion (57).

3. The cleaning system for a BMC molding compound mixing device according to claim 2, characterized in that: The switching mechanism (5) further comprises a limiting frame (58), a third displacement portion (59) and a second linear actuator (591); the limiting frame (58) is arranged on the top of the second displacement portion (57); the third displacement portion (59) is slidably arranged on the outside of the limiting frame (58), and the third displacement portion (59) is located above the mixing tank (2), and the bottom of the third displacement portion (59) is connected to the rotating cleaning portion (61); the second linear actuator (591) is arranged on the top of the limiting frame (58).

4. The cleaning system for a BMC molding compound mixing device according to claim 3, characterized in that: The cleaning mechanism (6) further comprises a rotary driver (62) and an abutment portion (63); the rotary driver (62) is arranged on the top of the third displacement portion (59), and the output end of the rotary driver (62) is connected to the rotary cleaning portion (61), and when the rotary driver (62) is started, it can drive the rotary cleaning portion (61) to a rotating state; the abutment portion (63) has a pair of abutments and is respectively slidably arranged on the top of the rotary cleaning portion (61), and the pair of abutments (63) are both cylindrical structures, and the pair of abutments (63) are used to contact and rotate with the inner wall of the mixing tank (2).

5. The cleaning system for a BMC molding compound mixing device according to claim 4, characterized in that: The cleaning mechanism (6) further comprises a first telescopic cylinder (64) and a pushing portion (65); the first telescopic cylinder (64) comprises a pair of pushing portions respectively arranged at the top of the rotating cleaning portion (61); the pushing portions (65) comprise a pair of pushing portions respectively arranged at the output ends of the first telescopic cylinder (64), and the pair of pushing portions (65) are both rotatably connected to the abutting portion (63). When the first telescopic cylinder (64) is activated, the pushing portions (65) can be driven to drive the abutting portion (63) to move in a direction close to the mixing tank (2).

6. The cleaning system for a BMC molding compound mixing device according to claim 5, characterized in that: The cleaning mechanism (6) further comprises a rotating scraper (66) and a rotating cleaning roller (67); the rotating scraper (66) is arranged at the bottom of the rotating cleaning portion (61), and the rotating scraper (66) is connected to the abutting portion (63), and when the abutting portion (63) rotates, it can drive the rotating scraper (66) to a synchronous rotating state; the rotating cleaning roller (67) is arranged at the bottom of the rotating cleaning portion (61), and the rotating cleaning roller (67) is located beside the rotating scraper (66).

7. The cleaning system for a BMC molding compound mixing device according to claim 6, characterized in that: The cleaning mechanism (6) further includes a water tank (68), a first annular spraying pipe (69) and a nozzle (691); the water tank (68) comprises a pair and is respectively arranged on the top of the third displacement portion (59), and the pair of water tanks (68) are both located on both sides of the rotary driver (62); the first annular spraying pipe (69) is arranged on the third displacement portion (59), and the first annular spraying pipe (69) is respectively connected to the pair of water tanks (68); the nozzle (691) comprises a plurality and is respectively arranged on the bottom of the first annular spraying pipe (69).

8. The cleaning system for a BMC molding compound mixing device according to claim 7, characterized in that: The cleaning mechanism (6) further comprises a mounting plate (692), a rotating motor (693) and an eccentric block (694); the mounting plate (692) comprises a plurality of rotating motors (693) which are respectively arranged at the bottom of the mixing tank (2); the rotating motors (693) comprise a plurality of rotating motors (693) which are respectively arranged at the top of the mounting plate (692), and the plurality of rotating motors (693) are all located outside the mixing tank (2); and the eccentric blocks (694) comprise a plurality of rotating motors (694) which are respectively arranged at the output end of the rotating motor (693).

9. The cleaning system for a BMC molding compound mixing device according to claim 8, characterized in that: The cleaning mechanism (6) further comprises a water pump (695) and a second annular spray pipe (696); the water pump (695) is arranged on the housing (1), and the water pump (695) is located beside the mixing tank (2); the second annular spray pipe (696) is arranged outside the mixing tank (2), and a plurality of openings for installing the second annular spray pipe (696) are opened on the outside of the mixing tank (2), and the second annular spray pipe (696) is connected to the water pump (695).

10. The cleaning system for a BMC molding compound mixing device according to claim 9, characterized in that: The cleaning mechanism (6) further comprises a setting frame (697), a liquid storage tank (698) and a water spray pipe (699); the setting frame (697) comprises a pair of setting frames and is respectively mounted on the sides of the housing (1), and the pair of setting frames (697) are both located on the sides of the mixing tank (2); the liquid storage tank (698) comprises a pair of setting frames and is respectively mounted on both sides of the setting frame (697); the water spray pipe (699) comprises a plurality of setting frames and is respectively mounted on the sides of the liquid storage tank (698), and the pair of water spray pipes (699) are both located above the connecting frame (55).

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