Vibration mechanism of tea screening machine

Abstract

The utility model relates to the technical field of tea processing, in particular to a vibrating mechanism of a tea screening machine, which comprises a base, a vibrating component arranged at the top of the base, a movable plate arranged above the base, a plurality of jacking parts arranged at the bottom of the movable plate, four limiting rods arranged at the bottom of the movable plate and four limiting parts arranged at the top of the base. The limiting piece comprises round fixing pipes fixedly connected to the top of the base, and the four limiting rods are located in the four round fixing pipes correspondingly. According to the vibration mechanism of the tea screening machine, a motor drives a rotating rod to rotate, the rotating rod drives a plurality of cams to rotate synchronously, the cams roll relative to first rolling wheels when rotating, friction is effectively reduced, a jacking part can be pushed to move upwards, and therefore a movable plate moves up and down; the first screen plate, the second screen plate and the third screen plate can screen the tea for three times in sequence, and screening operation of the tea is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tea processing, in particular to a vibration mechanism of a tea screening machine. Background Technique

[0002] When processing tea, a screening machine is needed. At present, the screening machines on the market have the disadvantage of large wear during operation. Generally, when screening, it causes a large impact on the internal parts, resulting in hard friction of the internal parts, so that the internal parts need to be frequently replaced, increasing the cost and greatly reducing the work efficiency.

[0003] The patent with the publication number of CN216026198U discloses a green tea screening machine, including a bottom plate and a cushion box, a vibration mechanism, an extension plate, a support rod, a limiting plate, a working box, a top cover and a sieve plate which are all arranged on the bottom plate. The bottom plate is fixedly connected with the cushion box arranged at the top. A communication hole is opened on the cushion box. The side wall of the inner cavity of the cushion box is fixedly connected with a vibration mechanism. The top of the vibration mechanism is fixedly connected with an extension plate penetrating through the communication hole. The top of the extension plate is fixedly connected with four support rods. This green tea screening machine with a noise reduction function opens the top cover, puts the tea into the working box, then starts the vibration mechanism to make the tea start to be screened, and then fixes the working box through a loss reduction mechanism to prevent the working box from shaking left and right. The overall structure is simple, achieving the purpose of noise reduction of the screening machine and greatly improving the work efficiency.

[0004] In the specific use process of the above-mentioned prior art, the motor drives the output rod to drive the cam to rotate, making the working box shake up and down. When the limiting plate shakes up and down, it is limited by the limiting rod, and the first spring reduces the frequency of the up and down shaking to avoid serious wear of the screening machine. However, when the output rod drives the cam to rotate, high-frequency friction will occur between the cam and the force-bearing plate, and high-frequency friction will also occur between the limiting plate and the limiting rod, still resulting in rapid wear of the cam, the force-bearing plate, the limiting plate and the limiting rod, and not being able to well solve the problem of large wear of the existing tea screening machine during operation. In view of this, we propose a vibration mechanism of a tea screening machine. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a vibration mechanism of a tea screening machine to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions:

[0007] A vibration mechanism of a tea screening machine, including a base. A vibration assembly is provided on the top of the base. The vibration assembly includes two fixed vertical plates arranged symmetrically left and right. The bottom of the fixed vertical plate is fixedly connected to the top of the base, such as by welding. A rotating rod is rotatably connected between the two fixed vertical plates. A motor for driving the rotating rod to rotate is provided outside one of the fixed vertical plates. The motor is powered by an external power supply. The output shaft of the motor is coaxially connected to one end of the rotating rod. A plurality of cams are arranged at equal intervals left and right on the outer wall of the rotating rod. An activity plate is provided above the base. A plurality of lifting members are arranged at equal intervals left and right at the bottom of the activity plate. The lifting member includes a U-shaped fixing block. A first roller is rotatably connected between the left and right sides of the inner wall of the U-shaped fixing block. A plurality of the first rollers are respectively abutted against a plurality of cams. By driving the rotating rod to rotate through the motor, the rotating rod drives a plurality of cams to rotate synchronously. When the cams rotate, they roll relative to the first rollers, effectively reducing friction and can push the lifting members upward, so that the activity plate moves up and down;

[0008] Limit rods are provided at the bottom of the activity plate and near the four corners. Four limiting members arranged in a matrix are provided on the top of the base. The limiting member includes a circular fixing tube fixedly connected to the top of the base. The four limiting rods are respectively located in the four circular fixing tubes. Four second rollers are rotatably connected to the inner wall of the circular fixing tube near the top. The outer wall of the limiting rod abuts against the outer wall of the second roller. The four limiting members respectively play a role in limiting the four limiting rods, so that the limiting rods can only move up and down, thus preventing the activity plate from shaking. When the limiting rods move up and down, the second rollers rotate, thereby reducing friction.

[0009] Preferably, a tea screening box is provided on the top of the activity plate. Second installation side plates are provided at the bottoms of the front and rear sides of the tea screening box. The second installation side plates are detachably connected to the top of the activity plate by bolts to fix the position of the tea screening box.

[0010] Preferably, a feeding hopper is provided at the top of the tea screening box and near the left side. The right side of the tea screening box is an open structure. A first sieve plate, a second sieve plate and a third sieve plate are sequentially arranged in the tea screening box from top to bottom. The tea to be screened is put into the tea screening box from the feeding hopper. When the tea screening box moves up and down at a high frequency along with the activity plate, the first sieve plate, the second sieve plate and the third sieve plate can screen the tea three times in sequence to realize the screening operation of the tea.

[0011] Preferably, first installation side plates are provided at the top of the front and rear sides of the U-shaped fixing block. The first installation side plates are detachably connected to the bottom of the activity plate by bolts, which is convenient for the disassembly and assembly of the lifting member. When the lifting member is damaged after long-term use, it can be replaced.

[0012] Preferably, springs are sleeved on the outer sides of the four limiting members, and the tops of the springs abut against the bottom of the movable plate. When the movable plate moves up and down, the springs can play a buffering role and cause the movable plate to vibrate up and down.

[0013] Preferably, four U-shaped grooves arranged in an annular array are formed at the top of the inner wall of the circular fixed pipe, and the four second rollers are respectively located in the four U-shaped grooves. U-shaped mounting grooves are formed on both sides of the inner wall of each U-shaped groove. Bearings are sleeved on the rotating shafts on both sides of the second roller, and the bearings are located in the U-shaped mounting grooves, which is beneficial to the high-speed rotation of the second roller.

[0014] Preferably, a detachable annular cover plate is connected to the top of the circular fixed pipe through bolts. Eight pressing rods arranged in an annular array are provided at the bottom of the annular cover plate. The eight pressing rods are respectively located in the eight U-shaped mounting grooves, and the bottom ends of the pressing rods abut against the outer wall of the bearing, playing a role in positioning the position of the outer ring of the bearing, so as to fix the position of the second roller and prevent the second roller from displacing during use.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. For the vibration mechanism of the tea screening machine, the rotating rod is driven to rotate by the motor, and the rotating rod drives multiple cams to rotate synchronously. When the cams rotate, they roll relative to the first roller, effectively reducing friction, and can push the lifting member upward, so that the movable plate moves up and down. When the tea screening box moves up and down at a high frequency with the movable plate, the first sieve plate, the second sieve plate and the third sieve plate can screen the tea three times in sequence to realize the screening operation of the tea.

[0017] 2. For the vibration mechanism of the tea screening machine, the four limiting members respectively limit the four limiting rods, so that the limiting rods can only move up and down, thus preventing the movable plate from shaking, and the second roller rotates when the limiting rods move up and down, thereby reducing friction.

[0018] 3. For the vibration mechanism of the tea screening machine, springs are sleeved on the outer sides of the four limiting members, and the tops of the springs abut against the bottom of the movable plate. When the movable plate moves up and down, the springs can play a buffering role and cause the movable plate to vibrate up and down.

[0019] 4. For the vibration mechanism of the tea screening machine, bearings are sleeved on the rotating shafts on both sides of the second roller, and the bearings are located in the U-shaped mounting grooves, which is beneficial to the high-speed rotation of the second roller, and the second roller can be disassembled and assembled, which is convenient for later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall first perspective structure of the present utility model;

[0021] Figure 2 It is a schematic diagram of the overall second perspective structure of the present utility model;

[0022] Figure 3 It is a schematic diagram of a partial structure of the present utility model;

[0023] Figure 4 It is an exploded schematic diagram of the limiting member in the present utility model;

[0024] Figure 5 It is an assembled schematic diagram of the circular fixed pipe and the second roller in the present utility model;

[0025] Figure 6 It is an assembled schematic diagram of the movable plate and the jacking member in the present utility model.

[0026] In the figure: 1. Base; 2. Vibration assembly; 20. Fixed vertical plate; 21. Rotating rod; 22. Motor; 23. Cam; 3. Movable plate; 30. Limiting rod; 4. Jacking member; 40. U-shaped fixing block; 41. First roller; 42. First installation side plate; 5. Limiting member; 50. Circular fixed pipe; 500. U-shaped groove; 501. U-shaped installation groove; 51. Second roller; 52. Ring-shaped cover plate; 53. Pressing rod; 54. Bearing; 6. Spring; 7. Tea screening box; 70. Second installation side plate; 71. Feeding hopper; 8. First sieve plate; 9. Second sieve plate; 10. Third sieve plate. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0029] Please refer to Figures 1 - 6 , the present utility model provides a technical solution:

[0030] The vibration mechanism of a tea screening machine includes a base 1. A vibration assembly 2 is provided at the top of the base 1. The vibration assembly 2 includes two fixed vertical plates 20 arranged symmetrically left and right. The bottom of the fixed vertical plate 20 is fixedly connected to the top of the base 1, such as by welding. A rotating rod 21 is rotatably connected between the two fixed vertical plates 20. A motor 22 for driving the rotation of the rotating rod 21 is provided outside one of the fixed vertical plates 20. The motor 22 operates with an external power supply. The output shaft of the motor 22 is coaxially connected to one end of the rotating rod 21. A plurality of cams 23 arranged equidistantly left and right are provided on the outer wall of the rotating rod 21. An activity plate 3 is provided above the base 1. A plurality of lifting members 4 arranged equidistantly left and right are provided at the bottom of the activity plate 3. The lifting member 4 includes a U-shaped fixed block 40. A first roller 41 is rotatably connected between the left and right sides of the inner wall of the U-shaped fixed block 40. A plurality of first rollers 41 are respectively abutted against a plurality of cams 23. By driving the rotation of the rotating rod 21 by the motor 22, the rotating rod 21 drives a plurality of cams 23 to rotate synchronously. When the cams 23 rotate, they roll relative to the first rollers 41, effectively reducing friction and can push the lifting members 4 upward, so that the activity plate 3 moves up and down;

[0031] Limit rods 30 are provided at the bottom of the activity plate 3 and near the four corners. Four limit members 5 arranged in a matrix are provided at the top of the base 1. The limit member 5 includes a circular fixed tube 50 fixedly connected to the top of the base 1. The four limit rods 30 are respectively located in the four circular fixed tubes 50. Four second rollers 51 are rotatably connected to the inner wall of the circular fixed tube 50 near the top. The outer wall of the limit rod 30 abuts against the outer wall of the second roller 51. The four limit members 5 respectively play a role in limiting the four limit rods 30, so that the limit rods 30 can only move up and down, thus preventing the activity plate 3 from shaking. When the limit rods 30 move up and down, the second rollers 51 rotate, thereby reducing friction.

[0032] In this embodiment, a tea screening box 7 is provided at the top of the activity plate 3. Second mounting side plates 70 are provided at the bottoms of the front and rear sides of the tea screening box 7. The second mounting side plates 70 are detachably connected to the top of the activity plate 3 by bolts to fix the position of the tea screening box 7.

[0033] Specifically, a feeding hopper 71 is provided at the top of the tea screening box 7 and near the left side. The right side of the tea screening box 7 is an open structure. A first sieve plate 8, a second sieve plate 9 and a third sieve plate 10 are sequentially provided in the tea screening box 7 from top to bottom. The tea to be screened is put into the tea screening box 7 from the feeding hopper 71. When the tea screening box 7 moves up and down frequently with the activity plate 3, the first sieve plate 8, the second sieve plate 9 and the third sieve plate 10 can sequentially screen the tea three times to realize the screening operation of the tea.

[0034] Further, first mounting side plates 42 are provided at the tops of the front and rear sides of the U-shaped fixing block 40. The first mounting side plates 42 are detachably connected to the bottom of the movable plate 3 by bolts, facilitating the disassembly and assembly of the lifting member 4. When the lifting member 4 is damaged after long-term use, it can be replaced.

[0035] Further, springs 6 are sleeved outside the four limiting members 5. The tops of the springs 6 abut against the bottom of the movable plate 3. When the movable plate 3 moves up and down, the springs 6 can play a buffering role and cause the movable plate 3 to vibrate up and down.

[0036] Further, four U-shaped grooves 500 arranged in an annular array are formed at the top of the inner wall of the circular fixing tube 50. The four second rollers 51 are respectively located in the four U-shaped grooves 500. U-shaped mounting grooves 501 are formed on both sides of the inner wall of each U-shaped groove 500. Bearings 54 are sleeved on the rotating shafts on both sides of the second roller 51, and the bearings 54 are located in the U-shaped mounting grooves 501, which is beneficial to the high-speed rotation of the second roller 51.

[0037] Further, a detachable annular cover plate 52 is connected to the top of the circular fixing tube 50 by bolts. Eight pressing rods 53 arranged in an annular array are provided at the bottom of the annular cover plate 52. The eight pressing rods 53 are respectively located in the eight U-shaped mounting grooves 501, and the bottom ends of the pressing rods 53 abut against the outer wall of the bearing 54, positioning the position of the outer ring of the bearing 54, so as to fix the position of the second roller 51 and prevent the second roller 51 from shifting during use.

[0038] When the vibration mechanism of the tea screening machine in this embodiment is in use, the staff starts the motor 22 to work, and then puts the tea to be screened into the tea screening box 7 from the feeding hopper 71. The motor 22 drives the rotating rod 21 to rotate, and the rotating rod 21 drives a plurality of cams 23 to rotate synchronously. When the cams 23 rotate, they roll relative to the first roller 41, effectively reducing friction and can push the lifting member 4 upward, so that the movable plate 3 moves up and down. When the limiting rod 30 moves up and down, the second roller 51 rotates, thereby reducing friction. When the movable plate 3 moves downward, it will compress the spring 6, and the spring 6 can play a buffering role and cause the movable plate 3 to vibrate up and down. When the tea screening box 7 moves up and down at a high frequency with the movable plate 3, the first sieve plate 8, the second sieve plate 9 and the third sieve plate 10 can screen the tea three times in sequence, realizing the screening operation of the tea.

[0039] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present utility model, and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. The vibration mechanism of a tea sieving machine, including a base (1), is characterized in that: The top of the base (1) is provided with a vibration assembly (2). The vibration assembly (2) includes two fixed vertical plates (20) arranged symmetrically left and right. A rotating rod (21) is rotatably connected between the two fixed vertical plates (20). A motor (22) for driving the rotation of the rotating rod (21) is provided outside one of the fixed vertical plates (20). A plurality of cams (23) are arranged at equal intervals left and right on the outer wall of the rotating rod (21). An activity plate (3) is provided above the base (1). A plurality of lifting members (4) are arranged at equal intervals left and right at the bottom of the activity plate (3). The lifting member (4) includes a U-shaped fixing block (40). A first roller (41) is rotatably connected between the left and right sides of the inner wall of the U-shaped fixing block (40). The plurality of first rollers (41) are respectively abutted against the plurality of cams (23). Limiting rods (30) are provided at the bottom of the activity plate (3) and near the four corners. Four limiting members (5) arranged in a matrix are provided on the top of the base (1). The limiting member (5) includes a circular fixed tube (50) fixedly connected to the top of the base (1). The four limiting rods (30) are respectively located in the four circular fixed tubes (50). Four second rollers (51) are rotatably connected to the inner wall of the circular fixed tube (50) near the top. The outer wall of the limiting rod (30) is abutted against the outer wall of the second roller (51).

2. The vibrating mechanism of the tea sieving machine according to claim 1, characterized in that: A tea screening box (7) is provided on the top of the activity plate (3). Second mounting side plates (70) are provided at the bottoms of the front and rear sides of the tea screening box (7). The second mounting side plates (70) are detachably connected to the top of the activity plate (3) by bolts.

3. The vibration mechanism of the tea sifting machine according to claim 2, wherein: A feeding hopper (71) is provided at the top of the tea screening box (7) and near the left side. The right side of the tea screening box (7) is an open structure. A first sieve plate (8), a second sieve plate (9) and a third sieve plate (10) are sequentially arranged in the tea screening box (7) from top to bottom.

4. The vibration mechanism of the tea sieving machine according to claim 1, characterized in that: First mounting side plates (42) are provided at the tops of the front and rear sides of the U-shaped fixing block (40). The first mounting side plates (42) are detachably connected to the bottom of the activity plate (3) by bolts.

5. The vibration mechanism of the tea sieving machine according to claim 1, characterized in that: Springs (6) are sleeved outside the four limiting members (5). The top ends of the springs (6) are abutted against the bottom of the activity plate (3).

6. The vibration mechanism of the tea sieving machine according to claim 1, characterized in that: Four U-shaped grooves (500) arranged in an annular array are opened at the top of the inner wall of the circular fixed tube (50). The four second rollers (51) are respectively located in the four U-shaped grooves (500). U-shaped mounting grooves (501) are opened on both sides of the inner wall of each U-shaped groove (500). Bearings (54) are sleeved on the rotating shafts on both sides of the second roller (51). The bearings (54) are located in the U-shaped mounting grooves (501).

7. The vibration mechanism of the tea sieving machine according to claim 6, characterized in that: The top of the circular fixed pipe (50) is connected with a detachable annular cover plate (52) by bolts. The bottom of the annular cover plate (52) is provided with eight downward pressing rods (53) arranged in an annular array. The eight downward pressing rods (53) are respectively located in eight U-shaped mounting grooves (501), and the bottom end of the downward pressing rod (53) abuts against the outer wall of the bearing (54).

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