Energy-saving crusher and process for powder coating production

Abstract

The invention relates to the technical field of energy-saving smashing equipment, and discloses an energy-saving smashing machine and process for powder coating production, the energy-saving smashing machine for powder coating production comprises a housing, a motor arranged in the housing, a fan arranged at the top of the motor, a shell arranged at the top of the housing, and a hopper arranged at the top of the shell; the crushing mechanism is arranged in the shell, and the guiding mechanism is arranged on the inner wall of the shell and used for guiding materials; the crushing mechanism comprises a rotating shaft arranged at the top of the motor and an impeller arranged at the top of the rotating shaft, and the rotating shaft synchronously rotates along with an output shaft of the motor. By arranging the guide mechanism, raw materials entering the machine can be subjected to impact crushing and rolling and shearing crushing, the grinding function of the crusher can be controlled to be started and stopped, excessive power of the motor can be utilized, and more energy is saved.

Description

Technical Field

[0001] The invention relates to the technical field of energy-saving pulverizing equipment, and in particular to an energy-saving pulverizer and process for powder coating production. Background Art

[0002] After the raw materials of powder coating are prepared into blocks or granules, they need to be put into a crusher to break down the raw materials from larger particles into powder through impact or grinding. Powdered coatings are easier to color and easier to mix with curing agents to achieve the desired coating effect.

[0003] Traditional crushers are widely used in the engineering field, but due to the limitations of their structure and working principle, there are often some problems that cannot be ignored. For example, traditional crushers often appear to be relatively single in crushing mode, which limits their adaptability to diversified material processing needs, and existing crushers lack the use of redundant torque of the motor, resulting in energy waste. When processing materials of different hardness, toughness or structure, traditional crushers may not provide ideal crushing effects. For example, for materials with strong toughness, the expected crushing particle size may not be achieved due to insufficient crushing force. This single crushing mode makes traditional crushers appear powerless when facing diversified material processing needs, and they cannot be flexibly adjusted to adapt to the characteristics of different materials, thus affecting processing efficiency and product quality. Existing equipment always relies on motors to provide power during the crushing process. During the operation of the motor, some redundant kinetic energy is not used, resulting in energy loss. Summary of the invention

[0004] In view of the problem of the existing technology that the working mode of the pulverizer is single and cannot meet the pulverization requirements of materials of different properties, an energy-saving pulverizer for powder coating production is proposed.

[0005] The purpose is to enable the crusher to have different crushing modes and be able to switch between them, thereby improving the applicability of the equipment.

[0006] The technical solution of the present invention is an energy-saving pulverizer for powder coating production, comprising a housing, a motor arranged inside the housing, a fan arranged on the top of the motor, a shell arranged on the top of the housing, a hopper arranged on the top of the shell, a crushing mechanism arranged inside the shell, and a guide mechanism arranged on the inner wall of the shell for guiding materials; The crushing mechanism includes a rotating shaft arranged on the top of the motor, the rotating shaft rotates synchronously with the output shaft of the motor, an impeller arranged on the top of the rotating shaft, a plurality of annular arrays of blocks arranged on the inner wall of the shell near the top, the impeller throws the raw materials toward the block by high-speed rotation, a baffle plate arranged on the bottom edge of the impeller, the raw materials are rebounded to the baffle plate, and a grinding unit arranged in the middle of the inner wall of the shell for grinding the raw materials.

[0007] Furthermore, a feed hole is provided at the top of the impeller, and a conical material guide platform is provided on the inner side of the impeller.

[0008] Furthermore, the grinding unit includes a sleeve arranged at the bottom of the outer shell, a connecting ring arranged at the top of the sleeve, a plurality of support shafts arranged in an annular array on the outside of the connecting ring, a material roller arranged on the outside of the support shaft, a grinding disc arranged in the middle of the inner wall of the outer shell, a threaded hole opened at the bottom of the sleeve and passing through the bottom of the rotating shaft, a bolt arranged inside the threaded hole, and a discharge pipe arranged at the bottom of the outer shell.

[0009] Furthermore, a limiting hole is provided at the bottom of the shell, a limiting ring is provided at the bottom of the sleeve, and the limiting ring is rotatably connected to the inside of the limiting hole.

[0010] Furthermore, grinding grooves are formed on the top of the grinding disc and the outer side of the material roller, and the grinding grooves are in a grid shape.

[0011] Furthermore, the guiding mechanism includes a sleeve in a ring array arranged in the middle of the shell, a universal joint arranged inside the sleeve, a hexagonal prism arranged at the bottom of the universal joint, a spring sleeved on the outside of the hexagonal prism, a rotating plate arranged on the outside of the spring, a deep hole is opened on the side of the rotating plate close to the sleeve, the deep hole is sleeved on the outside of the spring, the top and bottom of the spring are respectively fixedly connected to the top of the deep hole and the bottom of the hexagonal prism, a pulley arranged on the side of the universal joint away from the rotating plate, a round belt sleeved on the outside of two adjacent pulleys, a protective shell arranged on the outside of the shell, a knob arranged on the side of the protective shell away from the discharge pipe, and a damping block arranged on the side of the protective shell close to the knob, the inner side of the damping block is rotatably connected to the knob, and the side of the knob close to the outside is fixedly connected to the nearest pulley.

[0012] Furthermore, the outer edge of the rotating plate is fan-shaped, and two connecting grooves are formed on the outer side of the pulley.

[0013] Furthermore, the sleeve is L-shaped and has a cavity inside.

[0014] Another object of the present invention is to provide a process based on powder coating production, the purpose of which is to industrially produce powder coating.

[0015] To achieve the above object, the present invention provides the following technical solution: a process based on powder coating production, comprising the following steps: First, prepare the required raw materials according to the formula requirements, and add the raw materials into the mixer according to the proportion for thorough mixing; Secondly, the mixed raw materials are melted and extruded through a hot melt extruder to make them into a uniform liquid state; Then, the raw materials after hot melt extrusion are divided into small pieces and then put into the hopper of the crusher. The raw materials enter the interior of the crusher through the hopper and are then crushed into powder by the crushing mechanism. During the crushing process, the staff can adjust the crusher to different working modes according to the actual production requirements through the guiding mechanism. The raw materials are crushed into fine powder, which is convenient for subsequent coating and curing. Finally, the powder coating is subjected to quality inspection, packaged, and then stored under suitable conditions to ensure the stability of product quality.

[0016] Furthermore, the packaged coatings of the same batch are uniformly stored in the warehouse and shipped according to orders.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the arranged crushing mechanism, the raw materials entering the interior of the machine can be subjected to impact crushing and rolling shear crushing, enabling the crusher to process various raw materials more efficiently. Impact crushing and rolling shear crushing can be targeted at materials with different properties, which helps to improve the crushing efficiency and ensure a more uniform particle size distribution of the final product. By setting up the impact crushing and rolling shear crushing mechanisms, the crusher can better adapt to the processing requirements of different raw materials, thereby expanding its application range and flexibility. Moreover, the extra power of the motor can be utilized, making the equipment more energy-efficient.

[0018] 2. Through the arranged guiding mechanism, the grinding function of the crusher can be controlled to be opened or closed. The user can select a suitable crushing method by operating the guiding mechanism according to the actual production requirements. When the grinding function is needed, the guiding mechanism can guide the raw materials to the grinding area for fine crushing, avoiding unnecessary grinding processes. This design enables the crusher to flexibly adjust the crushing process according to different raw material characteristics and processing requirements, thereby improving the applicability of the equipment. By setting up the guiding mechanism, the crusher can better meet diverse production needs and enhance production efficiency and product quality.

[0019] 3. By setting up belt pulleys and round belts, multiple rotating plates are connected through the connection between different belt pulleys and round belts. When one of the rotating plates starts to rotate, through the friction between the round belt and the belt pulley, the other rotating plates are driven to rotate together. This way can ensure the synchronous rotation of each rotating plate and avoid asynchronous situations. By setting up belt pulleys and round belts, synchronous rotation between different rotating plates can be achieved, improving the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the overall energy-saving crusher of the present invention; Figure 2 is a schematic diagram of the internal structure of the housing of the energy-saving crusher of the present invention; Figure 3 Schematic diagram of the connection between the motor and the fan of the energy-saving crusher of the present invention; Figure 4 Schematic diagram of the impeller structure of the energy-saving crusher of the present invention; Figure 5 Schematic diagram of the connection between the stop block and the housing of the energy-saving crusher of the present invention; Figure 6 Schematic diagram of the grinding disc structure of the energy-saving crusher of the present invention; Figure 7 Schematic diagram of the support shaft structure of the energy-saving crusher of the present invention; Figure 8 Schematic diagram of the bolt structure of the energy-saving crusher of the present invention; Figure 9 Schematic diagram of the distribution of the rotating plates of the energy-saving crusher of the present invention; Figure 10 Schematic diagram of the connection between the round belt and the pulley of the energy-saving crusher of the present invention; Figure 11 Schematic diagram of the internal structure of the sleeve of the energy-saving crusher of the present invention; Figure 12 Schematic diagram of the knob structure of the energy-saving crusher of the present invention.

[0021] In the figure: 1. Cover housing; 2. Motor; 3. Fan; 4. Housing; 5. Hopper; 6. Crushing mechanism; 7. Guiding mechanism; 61. Rotating shaft; 62. Impeller; 63. Stop block; 64. Baffle; 65. Bush; 66. Connecting ring; 67. Support shaft; 68. Feed roller; 69. Grinding disc; 610. Threaded hole; 611. Bolt; 612. Discharge pipe; 71. Sleeve; 72. Universal joint; 73. Hexagon prism; 74. Spring; 75. Rotating plate; 76. Deep hole; 77. Pulley; 78. Round belt; 79. Protective housing; 710. Knob; 711. Damping block. Detailed implementation manners

[0022] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0023] Example 1, referring to Figures 1-12, which is the first embodiment of the present invention, provides an energy-saving crusher for powder coating production, including a housing 1, a motor 2 fixedly connected inside the housing 1, a fan 3 fixedly connected to the top of the motor 2, an outer shell 4 fixedly connected to the top of the housing 1, a hopper 5 fixedly connected to the top of the outer shell 4, and further includes a crushing mechanism 6 installed inside the outer shell 4 and a guiding mechanism 7 installed on the inner wall of the outer shell 4 for guiding materials; the crushing mechanism 6 includes a rotating shaft 61 fixedly connected to the top of the motor 2, the rotating shaft 61 rotates synchronously with the output shaft of the motor 2, an impeller 62 fixedly connected to the top of the rotating shaft 61, several stoppers 63 fixedly connected to the inner wall of the outer shell 4 near the top in an annular array, the impeller 62 throws the raw materials towards the stoppers 63 by high-speed rotation, a baffle 64 fixedly connected to the bottom edge of the impeller 62, the raw materials are rebounded by the baffle 64 to the baffle 64, and a grinding unit assembled in the middle of the inner wall of the outer shell 4 for grinding the raw materials.

[0024] Specifically, the housing 1 provides impact protection for the motor 2 and support for the entire device. The motor 2 provides crushing power. The fan 3 rotates with the output shaft of the motor 2 and disturbs the air inside the housing 1 while rotating, thereby using the redundant power of the motor 2 to dissipate heat inside the housing 1, achieving an energy-saving effect. The outer shell 4 provides a working space for the moving parts inside. The hopper 5 is used to input raw materials. The rotating shaft 61 transmits the power of the motor 2. The impeller 62 rotates with the rotating shaft 61 and impacts and crushes the raw materials through the kinetic energy and centrifugal force generated by the rotation, and throws the raw materials towards the stoppers 63. The baffle 64 blocks the raw materials that are rebounded by the stoppers 63 and fall, and at the same time guides the raw materials to fall close to the inner wall of the outer shell 4. The crushing mechanism 6 can perform impact crushing and rolling shear crushing on the raw materials entering the machine interior, enabling the crusher to process various raw materials more efficiently. Impact crushing and rolling shear crushing can be targeted at different properties of materials, which helps to improve the crushing efficiency and ensure a more uniform particle size distribution of the final product. By setting the impact crushing and rolling shear crushing mechanism 6, the crusher can better adapt to the processing requirements of different raw materials, thereby enhancing its application range and flexibility.

[0025] Refer to Figure 4 , a feed hole is opened at the top of the impeller 62, and a conical guiding table is provided inside the impeller 62.

[0026] Specifically, the raw material hopper 5 falls towards the feed hole and spreads towards the periphery of the frustum under the action of the frustum slope.

[0027] Refer to Figures 5-8, the grinding unit includes a bushing 65 rotatably connected to the bottom of the housing 4, a connecting ring 66 fixedly connected to the top of the bushing 65, several support shafts 67 fixedly connected to the outside of the connecting ring 66 in an annular array, a material roller 68 rotatably connected to the outside of the support shafts 67, a grinding disk 69 fixedly connected to the middle of the inner wall of the housing 4, a threaded hole 610 opened at the bottom of the bushing 65 and penetrating to the bottom of the rotating shaft 61, a bolt 611 threadedly connected to the inside of the threaded hole 610, and a discharge pipe 612 fixedly connected to the bottom of the housing 4.

[0028] Specifically, when the bushing 65 rotates, it drives the connecting ring 66 to rotate synchronously. The connecting ring 66 simultaneously drives several support shafts 67 to rotate. The support shafts 67 drive the connected material roller 68 to revolve around the bushing 65. The grinding disk 69 and the material roller 68 cooperate to roll the raw material. After the bolt 611 and the threaded hole 610 cooperate, they will lock the bushing 65 and the rotating shaft 61 to make them rotate synchronously.

[0029] Refer to Figure 5 and Figure 8 , a limiting hole is opened at the bottom of the housing 4, and a limiting ring is provided at the bottom of the bushing 65. The limiting ring is rotatably connected inside the limiting hole.

[0030] Specifically, the housing 4 is connected to the limiting ring of the bushing 65 through the limiting hole. The limiting hole and the limiting ring limit the bushing 65 so that it can only rotate in place.

[0031] Refer to Figure 6 and Figure 7 , grinding grooves are opened on the top of the grinding disk 69 and the outside of the material roller 68, and the grinding grooves are grid-shaped.

[0032] Specifically, when the grinding disk 69 and the material roller 68 rotate relatively, they can shear and crush the raw material through the grinding grooves.

[0033] Example 2, refer to Figures 9-12, which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the guiding mechanism 7 includes a plurality of sleeves 71 fixedly connected in an annular array to the middle of the outer shell 4, a universal joint 72 rotatably connected inside the sleeve 71, a hexagonal prism 73 fixedly connected to the bottom of the universal joint 72, a spring 74 sleeved outside the hexagonal prism 73, a rotating plate 75 sleeved outside the spring 74. A deep hole 76 is formed on one side of the rotating plate 75 close to the sleeve 71. The deep hole 76 is sleeved outside the spring 74. The top and bottom of the spring 74 are fixedly connected to the top and bottom of the deep hole 76 respectively. A belt pulley 77 fixedly connected to the side of the universal joint 72 away from the rotating plate 75, a circular belt 78 sleeved outside two adjacent belt pulleys 77, a protective shell 79 fixedly connected to the outside of the outer shell 4, a knob 710 rotatably connected to the side of the protective shell 79 away from the discharge pipe 612, a damping block 711 fixedly connected to the side of the protective shell 79 close to the knob 710. The inner side of the damping block 711 is rotatably connected to the knob 710. The side of the knob 710 close to the outside is fixedly connected to the nearest belt pulley 77.

[0034] Specifically, the sleeve 71 can accommodate the universal joint 72 to move inside and provide protection for the universal joint 72, allowing the universal joint 72 to transmit the torque from the pulley 77. When the hexagonal prism 73 rotates, it drives the rotating plate 75 to rotate together. The spring 74 continuously applies a force to the rotating plate 75, causing the rotating plate 75 to move towards the direction of the nearest universal joint 72. When the top surface of the rotating plate 75 faces upwards, it can guide the raw materials falling from above to the area of the grinding unit. The deep hole 76 accommodates the hexagonal prism 73 and allows the spring 74 to expand and contract inside. Adjacent pulleys 77 are connected by a circular belt 78. When any pulley 77 rotates, it can drive other pulleys 77 to rotate synchronously under the combined action of several circular belts 78. The protective shell 79 isolates the pulleys 77 and the circular belt 78 inside itself and provides a fixed point for the damping block 711. After the knob 710 rotates, it can drive the pulley 77 connected to it to rotate. The damping block 711 restricts the knob 710 through friction, so that the knob 710 cannot rotate by itself without external force. The guiding mechanism 7 can control the opening and closing of the grinding function of the crusher. Users can select a suitable crushing method by operating the guiding mechanism 7 according to actual production requirements. When the grinding function is required, the guiding mechanism 7 can guide the raw materials to the grinding area for fine crushing, avoiding unnecessary grinding processes. This design enables the crusher to flexibly adjust the crushing process according to different raw material characteristics and processing requirements, thereby improving the applicability of the equipment. By setting the guiding mechanism 7, the crusher can better meet diverse production needs, improve production efficiency and product quality. And through the connection between different pulleys 77 and circular belts 78, multiple rotating plates 75 are connected. When one of the rotating plates 75 starts to rotate, it drives other rotating plates 75 to rotate together through the friction between the circular belt 78 and the pulley 77. This method can ensure that the rotations of the respective rotating plates 75 are synchronized and avoid asynchronous situations. By setting the pulleys 77 and the circular belt 78, synchronous rotation between different rotating plates 75 can be achieved, improving the stability of the equipment.

[0035] Refer to Figure 9 and Figure 10 , the outer edge of the rotating plate 75 is fan-shaped, and two connecting grooves are opened on the outside of the pulley 77.

[0036] Specifically, several rotating plates 75 can be combined into a complete circular ring shape and are driven to be connected to the circular belt 78 through the connecting grooves.

[0037] Refer to Figure 10 and Figure 11 , the sleeve 71 is L-shaped and has a cavity inside.

[0038] Specifically, the outer shape of the sleeve 71 is adapted to the transmission angle of the universal joint 72 and isolates the universal joint 72 from the outside world. The remaining structure is the same as that of Embodiment 1.

[0039] Combined with Embodiments 1-2, the working principle of the present invention is as follows: By rotating the bolt 611, the bolt 611 enters the internal thread hole 610 to connect the bushing 65 and the rotating shaft 61, so that the two are synchronized and move synchronously. Then, rotate the knob 710. After the rotational force is greater than the frictional force between the knob 710 and the damping block 711, the knob 710 will drive the pulley 77 connected thereto to rotate. After driving the rotation, the other pulleys 77 are synchronously rotated through the endless belt 78 connected thereto. When the pulley 77 rotates, the hexagonal prism 73 is rotated through the universal joint 72. The hexagonal prism 73 drives the rotating plate 75 to rotate so that the rotating plate 75 is in a vertical state. Start the motor 2, and the output shaft of the motor 2 drives the fan 3 to rotate. The fan 3 generates an air flow to cool the motor 2 and utilize the redundant torque of the motor 2. After the motor 2 rotates, the impeller 62 is driven to rotate through the rotating shaft 61. At this time, the raw material is put into the hopper 5, and the raw material falls from the hopper 5 to the impeller 62. The raw material is impacted and broken by the impeller 62 and is thrown towards the baffle 63 under the action of centrifugal force. The raw material impacts the baffle 63 and is broken again. The raw material after impacting the baffle 63 falls downward and approaches the inner wall of the housing 4 under the action of the baffle 64 until it falls to the bottom of the housing 4 and is discharged through the discharge pipe 612. When the rotating plate 75 rotates to the state where the top surface faces upward, the falling raw material will fall on the upper surface of the rotating plate 75 and fall on the grinding disc 69 along the rotating plate 75. The rotating shaft 61 drives the bushing 65 to rotate together through the bolt 611. The bushing 65 drives the support shaft 67 and the material roller 68 to revolve around the rotating shaft 61 through the connecting ring 66. The material roller 68 rotates self-driven under the action of the frictional force with the grinding disc 69 while revolving. Therefore, the cooperation between the material roller 68 and the grinding disc 69 can grind the raw material to achieve a smaller particle size. The raw material after grinding falls to the bottom of the housing 4 and is discharged through the discharge pipe 612.

[0040] Example 3, referring to Figures 1-12 , which is the third embodiment of the present invention, provides: A process for powder coating production, including the following steps: S1. First, according to the formula requirements, prepare the required raw materials and add the raw materials into the mixer in proportion for sufficient mixing. There are differences in different types of pigment formulas, and corresponding raw materials need to be prepared during production.

[0041] S2. Secondly, melt and extrude the mixed raw materials through a hot melt extruder to make them into a uniform liquid state. After the raw materials are hot melt mixed, the color is more uniform.

[0042] S3. Then, the raw materials after hot-melt extrusion are divided into small pieces and then put into the hopper 5 of the pulverizer. The raw materials enter the interior of the pulverizer through the hopper 5 and are then crushed into powder by the crushing mechanism 6. During the crushing process, the staff can adjust the pulverizer to different working modes according to the actual production requirements. The raw materials are crushed into fine powder, which is convenient for subsequent coating and curing.

[0043] S4. Finally, the powder coating is subjected to quality inspection and then packaged, and then stored under suitable conditions to ensure the stability of product quality. A reasonable storage method is beneficial to the preservation of the product.

[0044] S5. The coated paint of the same batch is uniformly stored in the warehouse and shipped according to the order. After the production is completed, it is stored in the warehouse or transported to the place where the paint is needed.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. An energy-saving pulverizer for powder coating production, comprising a housing (1), a motor (2) arranged inside the housing (1), a fan (3) arranged on the top of the motor (2), a shell (4) arranged on the top of the housing (1), and a hopper (5) arranged on the top of the shell (4), characterized in that: It also includes a crushing mechanism (6) arranged inside the outer shell (4), and a guiding mechanism (7) arranged on the inner wall of the outer shell (4) for guiding materials; The crushing mechanism (6) comprises a rotating shaft (61) arranged at the top of the motor (2), the rotating shaft (61) rotating synchronously with the output shaft of the motor (2), an impeller (62) arranged at the top of the rotating shaft (61), a plurality of annular arrays of baffles (63) arranged on the inner wall of the housing (4) near the top, the impeller (62) throwing the raw materials toward the baffles (63) by high-speed rotation, a baffle (64) arranged at the bottom edge of the impeller (62), the raw materials being rebounded to the baffle (64) by the baffle (64), and a grinding unit arranged in the middle of the inner wall of the housing (4) for grinding the raw materials.

2. The energy-saving pulverizer for powder coating production according to claim 1, characterized in that: A material feed hole is provided at the top of the impeller (62), and a conical material guide platform is provided on the inner side of the impeller (62).

3. The energy-saving pulverizer for powder coating production according to claim 1, characterized in that: The grinding unit comprises a shaft sleeve (65) arranged at the bottom of the housing (4), a connecting ring (66) arranged at the top of the shaft sleeve (65), a plurality of support shafts (67) arranged in an annular array on the outside of the connecting ring (66), a material roller (68) arranged on the outside of the support shaft (67), a grinding disc (69) arranged at the middle of the inner wall of the housing (4), a threaded hole (610) opened at the bottom of the shaft sleeve (65) and extending through the bottom of the rotating shaft (61), a bolt (611) arranged on the inside of the threaded hole (610), and a discharge pipe (612) arranged at the bottom of the housing (4).

4. The energy-saving pulverizer for powder coating production according to claim 1, characterized in that: A limiting hole is provided at the bottom of the housing (4), a limiting ring is provided at the bottom of the shaft sleeve (65), and the limiting ring is rotatably connected to the inside of the limiting hole.

5. The energy-saving pulverizer for powder coating production according to claim 3, characterized in that: The top of the grinding disc (69) and the outer side of the material roller (68) are both provided with grinding grooves, and the grinding grooves are in a grid shape.

6. The energy-saving pulverizer for powder coating production according to claim 1, characterized in that: The guide mechanism (7) comprises a plurality of sleeves (71) arranged in an annular array in the middle of the housing (4), a universal joint (72) arranged inside the sleeve (71), a hexagonal prism (73) arranged at the bottom of the universal joint (72), a spring (74) sleeved on the outside of the hexagonal prism (73), and a rotating plate (75) arranged on the outside of the spring (74); a deep hole (76) is formed on one side of the rotating plate (75) close to the sleeve (71); the deep hole (76) is sleeved on the outside of the spring (74); the top and bottom of the spring (74) are respectively aligned with the top of the deep hole (76) and the top of the hexagonal prism (73). ), a pulley (77) disposed on a side of the universal joint (72) away from the rotating plate (75), a round belt (78) sleeved on the outside of two adjacent pulleys (77), a protective shell (79) disposed on the outside of the housing (4), a knob (710) disposed on a side of the protective shell (79) away from the discharge pipe (612), and a damping block (711) disposed on a side of the protective shell (79) close to the knob (710), the inner side of the damping block (711) being rotatably connected to the knob (710), and the side of the knob (710) close to the outside being fixedly connected to the nearest pulley (77).

7. The energy-saving pulverizer for powder coating production according to claim 6, characterized in that: The outer edge of the rotating plate (75) is fan-shaped, and the outer side of the pulley (77) is provided with two connecting grooves.

8. The energy-saving pulverizer for powder coating production according to claim 6, characterized in that: The sleeve (71) is L-shaped, and has a cavity inside.

9. A process for producing powder coatings, applied to the energy-saving pulverizer for producing powder coatings as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: First, prepare the required raw materials according to the formula requirements, and add the raw materials into the mixer according to the proportion for thorough mixing; Secondly, the mixed raw materials are melted and extruded through a hot melt extruder to make them into a uniform liquid state; Then, the raw material after hot melt extrusion is divided into small pieces and then put into the hopper (5) of the crusher. The raw material enters the crusher through the hopper (5) and is then crushed into powder by the crushing mechanism (6). During the crushing process, the staff can adjust the crusher to different working modes through the guide mechanism (7) according to actual production needs. The raw material is crushed into fine powder, which is convenient for subsequent coating and curing. Finally, the powder coating is quality tested, packaged, and then stored under appropriate conditions to ensure consistent product quality.

10. The process according to claim 9, characterized in that: The packaged paints of the same batch are stored in a unified warehouse and shipped according to the order.

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