Self-locking mechanism of material barrel of stirring machine
By designing a self-locking mechanism for the mixer hopper, the vibration problem of small and medium-sized vertical mixers has been solved, improving stability and service life, reducing production costs and wear difficulty, and realizing stable lifting and lowering of the hopper and labor-saving operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI HUALING KITCHEN EQUIP
- Filing Date
- 2024-04-18
- Publication Date
- 2026-05-12
AI Technical Summary
The lack of a locking mechanism between the material hopper and the machine body in small and medium-sized vertical mixers causes the mixer to vibrate during operation, affecting the mixing effect and shortening its service life, while also increasing production costs and wear and tear.
设计了一种搅拌机料桶的自锁紧机构，通过滑架总成与固定导轨的锁紧和放松，形成刚性体以提高稳定性，并降低对导轨副配合精度的要求，包括放松把手、凸轮轴、弹簧单元和料桶提升组件的配合使用。
This technology achieves stability and extends the service life of the mixer during operation, while reducing manufacturing costs and operational difficulty. Even if the sliding parts wear, it will not affect the use of the mixer.
Smart Images
Figure CN224221238U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food machinery technology, and more specifically, to a lifting system for a mixer hopper. Background Technology
[0002] When using small to medium-sized vertical mixers for food processing, the mixing tank needs to be lowered for loading and unloading raw materials and changing functional components. Therefore, regardless of the structure, there must be some movement between the mixing tank and the machine body, resulting in a certain gap between them. However, current small to medium-sized vertical mixers lack a locking mechanism between the mixing tank and the machine body. Consequently, when the mixer is running under load, its rigidity is affected, causing vibration, poor mixing performance, and a shortened lifespan. Furthermore, to minimize the gap between the sliding pairs, high precision machining is required, increasing production costs. Moreover, once wear occurs between the sliding pairs, raising and lowering the mixing tank becomes extremely difficult. Utility Model Content
[0003] The problem this invention aims to solve is to provide a self-locking mechanism for a mixer hopper. When the mixer is in operation, the mechanism locks, forming a rigid body with the hopper and lifting system, ensuring excellent stability during mixing, guaranteeing mixing efficiency, and extending the mixer's service life. When the mixer is not in operation, the mechanism releases, allowing the hopper to rise and fall. Simultaneously, this invention reduces the precision requirements for the guide rail pair, thereby lowering manufacturing costs.
[0004] This utility model discloses a self-locking mechanism for a mixer hopper, which includes a machine body, a fixed guide rail, a hopper, a slide assembly, and a hopper lifting assembly. The fixed guide rail is fixed to the front of the machine body, and the slide assembly is connected to the fixed guide rail to form a sliding pair that can be raised and lowered and can be locked and released. The hopper is connected to the front of the slide assembly, and the hopper lifting assembly is connected to the slide assembly and the hopper.
[0005] Furthermore, the carriage assembly includes a release handle, carriage, and two pressure plates located outside the machine body; a camshaft, two small brackets, two lever plates, and four sets of spring units located inside the machine body; the two pressure plates are respectively connected to the left and right protrusions at the rear of the carriage; the fixed guide rail is located in the space formed by the two pressure plates and the carriage; the two lever plates are located behind the two pressure plates, each pressure plate has a countersunk hole at the top and bottom, and the lever plates have through holes at the corresponding positions of the countersunk holes; the front pressure plate and the rear lever plate are connected by two sets of spring units; the outer surfaces of the two pressure plates are provided with grooves, and the front part of the small bracket is fastened in the groove; the camshaft is located between the pressure plates and the lever plates, the left end of the camshaft is connected to the hole at the rear of the left small bracket, and the right end passes through the hole at the rear of the right small bracket and extends out of the right side plate of the machine body; the release handle is connected to the right end of the camshaft; the material hopper is placed on top of the carriage.
[0006] Furthermore, each spring unit includes a butterfly spring, a release rod, and a locking nut; the butterfly spring is placed in the large hole of the countersunk hole, and the release rod passes through the butterfly spring, the small hole of the countersunk hole, and the through hole before being locked by the locking nut.
[0007] Furthermore, the carriage assembly also includes a slat, which is located on the inside of the right protrusion at the rear of the carriage and connected to the carriage by screws.
[0008] Furthermore, the material bucket lifting assembly includes a lifting shaft, a lifting handle, a crank, a lifting connecting rod, a pin, and a flexible cylindrical pin; the lifting shaft is fixed in the middle of the lower rear part of the slide and extends into the interior of the machine body through the square hole of the fixed track; the lifting handle extends into the interior of the machine body from the right side plate and is connected to one end of the crank; the upper end of the lifting connecting rod is connected to the other end of the crank through the pin, and its lower end is sleeved on the lifting shaft and limited by the flexible cylindrical pin.
[0009] Furthermore, the hole at the lower end of the lifting link that connects to the lifting shaft is oblong.
[0010] Furthermore, the carriage assembly also includes two clamping units on the left and right sides. Each clamping unit includes a barrel positioning pin, a barrel pressure plate, a liner, and a nylon washer. The liner is located at the arc end of the carriage, the nylon washer is placed on the liner, the barrel pressure plate is placed on the nylon washer, and the screw passes through the barrel pressure plate, the nylon washer, and the liner to connect with the carriage. The barrel positioning pin connects the liner and the carriage.
[0011] The advantages of this self-locking mechanism are: 1. By rotating the release handle to change the position of the camshaft and lever plate, the state of the disc spring is changed, realizing the loosening and locking of the slide assembly and the fixed guide rail: ① When the mixer is not in operation, the slide assembly and the fixed guide rail are loosened, and the material bucket can be easily raised and lowered; ② When the mixer is in operation, the slide assembly and the fixed guide rail are locked, making the material bucket, lifting system and machine body form a rigid body, which obtains good stability during mixing, ensures the mixing effect and extends the service life of the mixer; 2. Due to the existence of the locking mechanism, the sliding pairs only need to slide, and the lifting operation of the material bucket system is less labor-intensive than before, reducing the requirements for the precision of the guide rail pair, and thus reducing manufacturing costs; at the same time, even if the sliding pairs wear due to long-term use, it will not affect the use of the mixer. Attached Figure Description
[0012] Figure 1 This is a three-dimensional self-locking mechanism of the present invention. Figure 1 (The material bucket is in the fallen state);
[0013] Figure 2 This is a three-dimensional self-locking mechanism of the present invention. Figure 2 (The material bucket is in the raised position);
[0014] Figure 3 This is a front view of the self-locking mechanism of this utility model;
[0015] Figure 4 yes Figure 3 The right view;
[0016] Figure 5 It is a 3D view of the carriage assembly;
[0017] Figure 6 This is an exploded view of the carriage assembly;
[0018] Figure 7 This is a schematic diagram of the sliding joint when it is locked.
[0019] Figure 8 This is a schematic diagram of the sliding joint when it is relaxed;
[0020] Figure 9 This is a 3D view of the hopper lifting assembly;
[0021] Figure 10 It is a 3D view of the fixed guide rail and the machine body. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0023] Example 1
[0024] from Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 10 As can be seen, the present invention provides a self-locking mechanism for a mixer hopper, which includes a machine body 100, a fixed guide rail 101, a hopper 200, a slide assembly 300, and a hopper lifting assembly; the fixed guide rail 101 is fixed to the front of the machine body 100, the slide assembly 300 is connected to the fixed guide rail 101 to form a liftable sliding pair that can be locked and released, the hopper 200 is connected to the front of the slide assembly 300, and the hopper lifting assembly is connected to the slide assembly 300 and the hopper 200.
[0025] This utility model features a self-locking mechanism: When the mixer is not in operation, the slide assembly 300 is relaxed between itself and the fixed guide rail 101, allowing the material bucket 200 to be easily raised and lowered via the material bucket lifting assembly; when the mixer is in operation, the slide assembly 300 and the fixed guide rail 101 are locked together, forming a rigid body with the material bucket 200, slide assembly 300, and machine body 100, providing excellent stability during mixing operations, ensuring mixing effect, and extending the service life of the mixer; because the slide assembly 300 and the fixed guide rail 101 can be locked together, the sliding pairs only need to slide, making the lifting and lowering operation of the material bucket system less labor-intensive than before, reducing the requirements for the precision of the guide rail pair fit, and thus reducing manufacturing costs; at the same time, even if the sliding pairs wear down due to long-term use, it will not affect the use of the mixer.
[0026] Example 2
[0027] from Figure 5 , Figure 6 , Figure 7 , Figure 8As can be seen, the self-locking mechanism of this utility model includes a slide assembly 300 comprising a release handle 301 located outside the body 100, a slide 302, two left and right pressure plates 303, a camshaft 306, two left and right small brackets 305, two left and right lever plates 309, and four sets of spring units located inside the body 100; the two left and right pressure plates 303 are respectively connected to the left and right protrusions behind the slide 302, and the fixed guide rail 101 is located in the space formed by the two left and right pressure plates 303 and the slide 302; the two left and right lever plates 309 are arranged behind the two left and right pressure plates 303, and each pressure plate 303 has a sinker at its top and bottom. The lever plate 309 has through holes at the positions corresponding to the countersunk holes. The front pressure plate 303 and the rear lever plate 309 are connected by two sets of spring units. The outer sides of the left and right pressure plates 303 are provided with grooves, and the front part of the small bracket 305 is fastened in the grooves. The camshaft 306 is located between the pressure plate 303 and the lever plate 309. The left end of the camshaft 306 is connected to the hole at the rear of the left small bracket 305, and the right end passes through the hole at the rear of the right small bracket 305 and extends out of the right side plate of the machine body 100. The release handle 301 is connected to the right end of the camshaft 306. The material bucket 200 is placed on top of the slide 302.
[0028] When the handle 301 is released, the camshaft 306 rotates. The camshaft 306, through its interaction with the lever plate 309, causes the spring unit to be in different states, thereby locking or releasing the carriage assembly 300 from the fixed guide rail 101.
[0029] Example 3
[0030] from Figure 5 , Figure 6 , Figure 7 , Figure 8 It can be seen that the self-locking mechanism of this utility model includes a butterfly spring 307, a release rod 308, and a locking nut 310 for each spring unit; the butterfly spring 307 is placed in the large hole of the countersunk hole, and the release rod 308 passes through the butterfly spring 307, the small hole of the countersunk hole, and the through hole and is locked by the locking nut 310.
[0031] By rotating the camshaft 306, the disc spring 307 is subjected to different deformations, thereby locking or releasing the slide assembly 300 from the fixed guide rail 101. When the release handle 301 is facing downwards, the lowest point of the camshaft 306 contacts the lever plate 309, and the camshaft 306 does not press against the lever plate 309. At this time, when the spring force of the disc spring 307 is applied, the left and right release levers 308 press against the fixed guide rail 101, and the sliding pair forms a self-locking state, that is, the slide 300 is locked relative to the fixed guide rail. 101 cannot slide; rotate the release handle 301 counterclockwise 180°, which drives the camshaft 306 to rotate, so that its highest point contacts and squeezes the lever plate 309 to move it backward, thereby driving the release rod 308 to move backward away from the fixed guide rail 101 (at this time, the disc spring 307 is squeezed to release the spring force), and the sliding pair is in a relaxed state, that is, the slide 300 can slide relative to the fixed guide rail 101; at this time, rotate the lifting handle 103, and the slide 300 drives the material bucket 200 to rise or fall.
[0032] Example 4
[0033] from Figure 5 , Figure 6 , Figure 7 , Figure 8 It can be seen that the self-locking mechanism of this utility model: the slide assembly 300 also includes a strip 304, which is disposed on the inner side of the right protrusion behind the slide 302 and connected to the slide 302 by screws.
[0034] By adjusting the set screw, the insert 304 can be moved left and right, thereby controlling the gap between the mating surfaces of the fixed sliding guide and ensuring the smooth sliding of the sliding pair.
[0035] Example 5
[0036] from Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 9 As can be seen, the self-locking mechanism of this utility model includes a material bucket lifting assembly comprising a lifting shaft 102, a lifting handle 103, a crank 104, a lifting connecting rod 105, a pin 106, and an elastic cylindrical pin. The lifting shaft 102 is fixed in the middle of the lower rear part of the slide 302 and extends into the interior of the machine body 100 through the square hole of the fixed track 101. The lifting handle 103 extends into the interior of the right side plate of the machine body 100 and is connected to one end of the crank 104. The upper end of the lifting connecting rod 105 is connected to the other end of the crank 104 through the pin 106, and its lower end is sleeved on the lifting shaft 102 and limited by the elastic cylindrical pin.
[0037] The lifting handle 103 can raise and lower the material bucket 200: by rotating the lifting handle 103, the slide 302 is moved up and down through the crank 104, the lifting connecting rod 105, and the lifting shaft 102, thereby raising and lowering the material bucket 200.
[0038] Example 6
[0039] from Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 9 It can be seen that in the self-locking mechanism of this utility model, the hole at the lower end of the lifting link 105 that connects to the lifting shaft 102 is waist-shaped.
[0040] The connecting hole at the lower end of the connecting rod 105 is an oblong hole, which allows the connecting rod 105 to swing at a small angle during the lifting and lowering process.
[0041] Example 7
[0042] from Figure 5 , Figure 6 , Figure 7 , Figure 8 It can be seen that the self-locking mechanism of this utility model: the slide assembly 300 also includes two left and right clamping units. Each clamping unit includes a material barrel positioning pin 311, a material barrel pressure plate 312, a liner 313, and a nylon washer 314. The liner 313 is set at the arc end of the slide 302, the nylon washer 314 is placed on the liner 313, the material barrel pressure plate 312 is placed on the nylon washer 314, the screw passes through the material barrel pressure plate 312, the nylon washer 314, and the liner 313 and connects to the slide 302, and the material barrel positioning pin 311 connects the liner 313 and the slide 302.
[0043] The material bucket 200 can be quickly loaded and unloaded from the slide 305: when the material bucket 200 is placed on the slide 302, the positioning plate under its extraction part is placed on the liner plates 313 on both sides of the arc end of the slide 302. The material bucket positioning pin 311 connects the material bucket 200 to the liner plates 313 and the slide 302, and is pressed by the material bucket pressure plate 312, so that the material bucket 200 is fixedly connected to the slide 302. When it is necessary to remove the material bucket 200, simply loosen the material bucket pressure plate 312 and remove the material bucket positioning pin 311.
[0044] The principle of the self-locking mechanism of this utility model is as follows: When the material bucket 200 is in the lower working position and raw materials are put in, the handle 301 is released upwards, that is, the sliding pair between the slide assembly 300 and the fixed guide rail 101 is released and can move; after the raw materials are put in, the lifting handle 103 is rotated 180° clockwise, which moves the material bucket 200 to the upper working position; at this time, the handle 301 is released 180° clockwise, which locks the sliding pair between the slide assembly 300 and the fixed guide rail 101, that is, the sliding pair cannot move, and the mixer starts working until it ends; then the handle 301 is released 180° counterclockwise, the sliding pair between the slide assembly 300 and the fixed guide rail 101 is released, and the lifting handle 103 is rotated 180° counterclockwise again, which moves the material bucket 200 to the lower working position to remove the materials.
[0045] The advantages of this self-locking mechanism are as follows: 1. By rotating the release handle 301, the positions of the camshaft 306 and the lever plate 309 are changed, thereby changing the state of the disc spring 307, realizing the loosening and locking of the slide assembly 300 and the fixed guide rail 101: ① When the mixer is not in operation, the slide assembly 300 and the fixed guide rail 101 are loosened, and the material bucket 200 can be easily raised and lowered; ② When the mixer is in operation, the slide assembly 300 and the fixed guide rail 101 are locked, making the material bucket 200, the lifting system (sliding assembly 300), and the machine body 100 form a rigid body, achieving good stability during mixing operations, ensuring the mixing effect, and extending the service life of the mixer; 2. Due to the existence of the locking mechanism, as long as the sliding pairs can slide, the lifting operation of the material bucket system is less labor-intensive than before, reducing the requirements for the precision of the guide rail pair fit, and thus reducing manufacturing costs; at the same time, even if the sliding pairs wear due to long-term use, it will not affect the use of the mixer.
[0046] In summary, this utility model improves product performance, reduces manufacturing costs, and facilitates operation, thus possessing corresponding practical value.
[0047] This embodiment is only a general description and is not restrictive. The figures shown are only one implementation of the invention, and the actual structure is not limited to this. For example, in large-capacity models driven by hydraulics, a small hydraulic cylinder can control the deformation of the disc spring to achieve locking or unlocking. Therefore, if those skilled in the art are inspired by this and design similar structures and embodiments without departing from the spirit of the invention, they should all fall within the protection scope of this invention.
Claims
1. A self-locking mechanism for a mixer hopper, characterized in that: It includes a machine body (100), a fixed guide rail (101), a material hopper (200), a carriage assembly (300), and a material hopper lifting assembly; the fixed guide rail (101) is fixed to the front of the machine body (100), the carriage assembly (300) is connected to the fixed guide rail (101) to form a liftable sliding pair that can be locked and released, the material hopper (200) is connected to the front of the carriage assembly (300), and the material hopper lifting assembly is connected to the carriage assembly (300) and the material hopper (200); the carriage assembly (300) includes components located outside the machine body (100). The machine includes a release handle (301), a slide (302), two left and right pressure plates (303), a camshaft (306), two left and right small brackets (305), two left and right lever plates (309), and four sets of spring units located inside the body (100); the two left and right pressure plates (303) are respectively connected to the left and right protrusions behind the slide (302), and the fixed guide rail (101) is located in the space formed by the two left and right pressure plates (303) and the slide (302); the two left and right lever plates (309) are set on the two left and right pressure plates (303). Behind each pressure plate (303), there is a countersunk hole at the top and bottom. The lever plate (309) has a through hole at the corresponding position of the countersunk hole. The front pressure plate (303) and the rear lever plate (309) are connected by two sets of spring units. The outer sides of the left and right pressure plates (303) are provided with grooves, and the front part of the small bracket (305) is fastened in the groove. The camshaft (306) is located between the pressure plate (303) and the lever plate (309). The left end of the camshaft (306) is connected to the hole at the rear of the left small bracket (305). The right end of the connector extends through the hole at the rear of the small bracket (305) on the right side and extends out onto the right side plate of the machine body (100). The release handle (301) is connected to the right end of the camshaft (306). The material bucket (200) is placed on top of the slide (302). Each spring unit includes a butterfly spring (307), a release rod (308), and a locking nut (310). The butterfly spring (307) is placed in the large hole of the countersunk hole. The release rod (308) passes through the butterfly spring (307), the small hole of the countersunk hole, and the through hole, and is then locked by the locking nut (310).
2. The self-locking mechanism according to claim 1, characterized in that: The carriage assembly (300) also includes a strip (304) which is located on the inside of the right protrusion at the rear of the carriage (302) and connected to the carriage (302) by screws.
3. The self-locking mechanism according to claim 1, characterized in that: The material bucket lifting assembly includes a lifting shaft (102), a lifting handle (103), a crank (104), a lifting connecting rod (105), a pin (106), and an elastic cylindrical pin. The lifting shaft (102) is fixed in the middle of the lower rear part of the slide (302) and extends into the interior of the machine body (100) through the square hole of the fixed guide rail (101). The lifting handle (103) extends into the interior of the right side plate of the machine body (100) and is connected to one end of the crank (104). The upper end of the lifting connecting rod (105) is connected to the other end of the crank (104) through the pin (106), and its lower end is sleeved on the lifting shaft (102) and limited by the elastic cylindrical pin.
4. The self-locking mechanism according to claim 3, characterized in that: The hole at the lower end of the lifting link (105) that connects to the lifting shaft (102) is waist-shaped.
5. The self-locking mechanism according to claim 1, characterized in that: The carriage assembly (300) also includes two clamping units on the left and right. Each clamping unit includes a barrel positioning pin (311), a barrel pressure plate (312), a liner (313), and a nylon washer (314). The liner (313) is set at the arc end of the carriage (302), the nylon washer (314) is placed on the liner (313), the barrel pressure plate (312) is placed on the nylon washer (314), and the screw passes through the barrel pressure plate (312), the nylon washer (314), and the liner (313) to connect with the carriage (302). The barrel positioning pin (311) connects the liner (313) and the carriage (302).