Multi-stage longan screening device

Abstract

The utility model relates to the technical field of food processing, and discloses a longan multistage screening device which comprises a sealing shell, a built-in groove is formed in the sealing shell, a screening assembly used for vibrating and pushing longan is arranged in the built-in groove, and the screening assembly comprises an eccentric wheel, a crank, a push rod, a shaft rod, a boosting rod and a moving block. The sliding seat is driven to fluctuate up and down in the up-down lifting process due to the fact that the height of fluctuation is affected by the length of the moving block, the shaft rod driven by the motor needs time to move, the amplitude of fluctuation is relatively fixed, and the frequency of fluctuation is relatively low. In this way, a vibration motor can be replaced, excessive damage is avoided, the number of times of maintaining the device by workers can be reduced to a certain degree, and therefore the economic cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of food processing, and in particular relates to a longan multi-stage screener. Background Art

[0002] The prior art discloses a multi-stage screening structure of a screener for zinc material processing (CN217474131U), comprising a screening seat, a grading screen, a material outlet and a vibration motor, and also comprising a sealing mechanism and a shielding mechanism, wherein the sealing mechanism is composed of a rubber pad, a sealing plate, a strap plate, a support plate, a pin hole A, a pin hole B and a bayonet, a grading screen is installed in the seat body of the screening seat, and a sealing mechanism is arranged at the side seat opening of the screening seat on one side of the grading screen. With the arrangement of the sealing mechanism, the side seat opening of the screening seat can be conveniently closed and opened, which facilitates the maintenance and cleaning of the grading screen, so that the screening seat can better perform multi-stage screening of zinc materials after maintenance, and a shielding mechanism is arranged at the screening seat above the vibration motor, and a larger shielding plate can be used to shield above the vibration motor to prevent zinc material particles from falling above the vibration motor, thereby avoiding the zinc material from falling and accumulating at the vibration motor when screening at the screening seat.

[0003] After searching, it was found that the device used a vibration motor to vibrate and screen the materials. This would cause excessive damage to the vibration motor due to long-term use, which would require staff to maintain or replace the device many times, which would increase economic costs. In addition, the device did not take into account how to collect the materials, which resulted in the material having no driving force while being vibrated and screened in the screen, and only relying on the vibration of the vibration motor to propel the material. This would reduce the efficiency of material classification and collection, and greatly extend the collection time. Utility Model Content

[0004] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0005] A multi-stage longan screener comprises a shell, a built-in groove is provided in the shell, a screening component for vibrating and pushing the longans is arranged in the built-in groove, the screening component comprises an eccentric wheel, a crank, a push rod, a shaft, a booster rod and a moving block, the eccentric wheel is rotatably connected to the shell and the crank and is slidably connected to the moving block, the push rod is rotatably connected to the crank and the shaft, the shaft is rotatably connected to the built-in groove and the booster rod, and the booster rod is slidably connected to the moving block and the built-in groove.

[0006] As a preferred embodiment of the utility model, different rotating holes are symmetrically opened on opposite sides of the shell, and shaft rings for rotation are respectively arranged in the two rotating holes, and different connecting columns are rotatably connected through the shaft rings. A motor is placed on opposite sides of the shell, and the output ends of the two motors are respectively connected to one end of two connecting columns, and the other ends of the connecting columns are fixedly connected to the eccentric wheel.

[0007] As a preferred embodiment of the utility model, a connecting block and a connecting seat are fixedly connected to the inner wall surface of the shell, and two connecting blocks are symmetrically arranged. The connecting seat is located on one side of the connecting block, and sliding grooves are provided on the opposite surfaces of the two connecting blocks, and the movable block is slidably connected through the sliding grooves. A short column is fixedly connected to one side of the connecting seat, and a movable ring is provided on the short column, and the connecting shaft is rotated through the ring.

[0008] As a preferred embodiment of the utility model, a cylinder is fixedly connected to a plane on one side of the eccentric wheel, a rotatable bearing is provided on the cylinder, and the crank is rotatably connected to the cylinder through the bearing, a second cylinder is fixedly connected to the other end of the crank, a second bearing is provided on the second cylinder, and the push rod is rotatably connected to the push rod through the second bearing, the output ends of the push rod and the booster rod on the same side are fixedly connected to different third cylinders, different third bearings are provided on the third cylinders, and the same shaft is rotatably connected to the same shaft through different third bearings.

[0009] As a preferred embodiment of the utility model, the top of the moving block is a square block, a trapezoidal slide groove is opened inside the moving block, the bottom of the moving block is fixedly connected to a ring groove block, the ring groove block is an elliptical ring, the internal width of which is greater than or equal to the diameter of the eccentric wheel, the eccentric wheel slides inside the ring groove, the other end of the booster rod is fixedly connected to a sliding seat, the bottom of the sliding seat is fixedly connected to a trapezoidal protrusion similar in shape and size to the trapezoidal slide groove, and the trapezoidal protrusion slides in the trapezoidal slide groove.

[0010] As a preferred embodiment of the utility model, two slot blocks are fixedly connected to one side of the moving block, the length of the slot block is greater than or equal to the sum of the lengths of the two connecting blocks and the moving block, and the two slot blocks are slidably connected to the No. 2 sieve plate and the No. 3 sieve plate respectively.

[0011] As a preferred embodiment of the utility model, sieve plate No. 2 and sieve plate No. 3 are fixedly connected on a plane side of the shaft rod by bolts, sieve plate No. 1 is fixedly connected to the top of the sliding seat by bolts, the width of sieve plate No. 1 is less than or equal to the width of the built-in groove, sieve plate No. 1 slides on the built-in groove, and slideways for driving sieve plate No. 2 and sieve plate No. 3 are provided inside the two groove blocks, and protrusions of the same shape and size are respectively provided on both sides of the sieve plate No. 2 and sieve plate No. 3, and the protrusions are similar in shape and size to the slideways and slide therein, and the bottom of the built-in groove is an inclined surface, and the inner bottom surfaces of the sieve plates No. 1, No. 2 and No. 3 are also set to inclined surfaces.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. Since the top of the moving block is a trapezoidal slide groove, which engages with the trapezoidal protrusion at the bottom of the sliding seat, the sliding seat will also be driven up and down during the up and down lifting process. On the one hand, the height of the ups and downs is affected by the length of the moving block, so the amplitude of the ups and downs is relatively fixed. On the other hand, the movement of the shaft driven by the rotation of the motor takes time, so the frequency of the ups and downs is relatively slow. This can not only replace the use of vibration motors to avoid excessive damage, but also reduce the number of maintenance times of the device by staff to a certain extent, thereby reducing economic costs.

[0014] 2. The screening component can achieve controllable up and down fluctuations, and then slowly move horizontally, which can not only provide driving force for the longans during the screening process, but also effectively improve the efficiency of screening and collecting longans of different sizes, thereby reducing the collection time.

[0015] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In the attached picture:

[0017] Figure 1 It is an overall schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 3 It is a front view schematic diagram of the utility model;

[0020] Figure 4 It is a top view schematic diagram of the utility model;

[0021] Figure 5 It is a cross-sectional schematic diagram of the utility model.

[0022] In the figure: 10, casing; 11, motor; 12, connecting block; 13, connecting seat; 14, connecting column; 15, eccentric wheel; 16, crank; 17, push rod; 18, shaft; 19, booster rod; 20, moving block; 21, sliding seat; 22, groove block; 23, built-in groove; 24, annular groove block; 25, No. 1 sieve plate; 26, No. 2 sieve plate; 27, No. 3 sieve plate. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0024] A longan multi-stage filter, such as Figure 1 , Figure 2 and Figure 4 As shown, it includes a shell 10, a built-in groove 23 is opened in the shell 10, and a screening component for vibrating and pushing longan is arranged in the built-in groove 23. The screening component includes an eccentric wheel 15, a crank 16, a push rod 17, a shaft 18, a booster rod 19 and a moving block 20. The eccentric wheel 15 is rotatably connected to the shell 10 and the crank 16 and is slidably connected to the moving block 20. The push rod 17 is rotatably connected to the crank 16 and the shaft 18. The shaft 18 is rotatably connected to the built-in groove 23 and the booster rod 19. The booster rod 19 is slidably connected to the moving block 20 and the built-in groove 23.

[0025] The working principle is as follows: in the built-in groove 23, the eccentric wheel 15 rotates to push the moving block 20 up and down to achieve vibration, and then drives the crank 16 to rotate while pushing the push rod 17, so that it pushes one end of the shaft 18, and then prompts the other end of the shaft 18 to push the booster rod 19 to slide laterally, thereby achieving driving force.

[0026] like Figure 1 and Figure 2 As shown, different rotating holes are symmetrically provided on opposite sides of the shell 10, and shaft rings for rotation are respectively arranged in the two rotating holes, and different connecting columns 14 are rotatably connected through the shaft rings. A motor 11 is respectively placed on opposite sides of the shell 10, and the output ends of the two motors 11 are respectively connected to one end of the two connecting columns 14, and the other end of the connecting column 14 is fixedly connected to the eccentric wheel 15; Figure 1 and Figure 2 As shown, a connection block 12 and a connection seat 13 are fixedly connected to the inner wall surface of the shell 10, two connection blocks 12 are symmetrically arranged, and the connection seat 13 is located on one side of the connection block 12. Slide grooves are provided on the opposite surfaces of the two connection blocks 12, and the moving block 20 is slidably connected through the slide grooves. A short column is fixedly connected to one side of the connection seat 13, and a movable ring is arranged on the short column, and the shaft rod 18 is rotatably connected through the ring; as shown Figure 1 and Figure 2 As shown, a cylinder is fixedly connected to a plane on one side of the eccentric wheel 15, a rotatable bearing is provided on the cylinder, and the crank 16 is rotatably connected through the bearing, a second cylinder is fixedly connected to the other end of the crank 16, and a second bearing is provided on the second cylinder, and the push rod 17 is rotatably connected through the second bearing, and the push rod 17 and the booster rod 19 are both fixedly connected to different third cylinders at the output ends on the same side, and different third bearings are provided on the third cylinders, and the same shaft 18 is rotatably connected through different third bearings; as shown Figure 2 , Figure 3 and Figure 5 As shown, the top of the moving block 20 is a square block with a trapezoidal groove inside. The bottom of the moving block 20 is fixedly connected with a ring groove block 24. The ring groove block 24 is an elliptical ring with an internal width greater than or equal to the diameter of the eccentric wheel 15. The eccentric wheel 15 slides inside it. The other end of the booster rod 19 is fixedly connected with a sliding seat 21. The bottom of the sliding seat 21 is fixedly connected with a trapezoidal protrusion similar in shape and size to the trapezoidal groove, and the trapezoidal protrusion slides in the trapezoidal groove.

[0027] The specific implementation is as follows: driven by the motor 11, the connection column 14 rotates and drives the eccentric wheel 15 to rotate. Then, because the eccentric wheel 15 is in the annular groove block 24, it will slide inside the annular groove block 24 while rotating eccentrically, thereby causing the annular groove block 24 to fluctuate up and down along its movement direction, thereby pushing the moving block 20 to slide up and down in the two connection blocks 12. At the same time, the crank 16 is driven by the rotation of the eccentric wheel 15, and a pulling force is given to the push rod 17 by pulling one end of the push rod 17, so that it pulls one end of the shaft rod 18 to rotate on the connection seat 13. At the same time, the booster rod 1 connected to the other end of the shaft rod 18 is 9 will be subjected to pulling force, and then pull the sliding seat 21 to slide on the square block. Since the top of the moving block 20 is a trapezoidal slide groove, which is engaged with the trapezoidal protrusion at the bottom of the sliding seat 21, the sliding seat will also be driven up and down during the process of lifting and lowering. On the one hand, the height of the ups and downs is affected by the length of the moving block 20, so the amplitude of the ups and downs is relatively fixed. On the other hand, the movement of the shaft 18 driven by the rotation of the motor 11 takes time, so the frequency of the ups and downs is relatively slow. This can not only replace the use of the vibration motor to avoid excessive damage, but also reduce the number of maintenance times of the device by the staff to a certain extent, thereby reducing the economic cost.

[0028] like Figure 2 , Figure 3 and Figure 5 As shown, one side of the moving block 20 is fixedly connected to two slot blocks 22, the length of the slot block 22 is greater than or equal to the sum of the lengths of the two connecting blocks 12 and the moving block 20, and the two slot blocks 22 are slidably connected to the second sieve plate 26 and the third sieve plate 27 respectively; Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, sieve plate No. 26 and sieve plate No. 3 27 are fixedly connected by bolts on a plane on one side of the shaft 18, sieve plate No. 1 25 is fixedly connected to the top of the sliding seat 21 by bolts, the width of sieve plate No. 1 25 is less than or equal to the width of the built-in groove 23, sieve plate No. 1 25 slides on the built-in groove 23, and slideways for driving sieve plates No. 26 and No. 3 sieve plates 27 are provided inside the two groove blocks 22, and protrusions of the same shape and size are respectively arranged on both sides of sieve plates No. 26 and No. 3 sieve plates 27, and the protrusions are similar in shape and size to the slideways and slide therein, and the bottom of the built-in groove 23 is an inclined surface, and the inner bottom surfaces of sieve plates No. 1 25, No. 2 26 and No. 3 sieve plates 27 are also set to inclined surfaces.

[0029] The specific implementation is as follows: since the top of the sliding seat 21 is fixedly connected to the No. 1 sieve plate 25, and the side of the shaft rod 18 is fixed to the No. 2 sieve plate 26 and the No. 3 sieve plate 27 by bolts, when the device is vibrated and pushed horizontally, it will also drive the three sieve plates to vibrate and push at the same time. At the same time, since the inner bottom surfaces of the built-in groove 23, the No. 1 sieve plate 25, the No. 2 sieve plate 26 and the No. 3 sieve plate 27 are all set as inclined surfaces, when screening materials, large longans will stay in the No. 1 sieve plate 25, and then be pushed out horizontally through the cooperation of the shaft rod 18 and the booster rod 19. At the same time, the other accumulated longans will be vibrated into the sieve plate 25 due to the ups and downs of the moving block 20. The longans smaller than the No. 1 sieve plate 25 will enter the No. 2 sieve plate 26, and those equal to the No. 2 sieve plate 26 and smaller than the No. 1 sieve plate 25 will be discharged horizontally. Based on the same principle, those smaller than the No. 2 sieve plate 26 and larger than the No. 3 sieve plate 27 will be discharged by the No. 3 sieve plate 27, and those smaller than the No. 3 sieve plate 27 will be screened out and reach the bottom of the built-in groove 23, where they will be stagnant and then collected. The screening component can achieve controllable up and down fluctuations, and then perform slow horizontal movement, which can not only provide driving force for the longans during the screening process, but also effectively improve the efficiency of screening and collecting longans of different sizes, thereby reducing the collection time.

[0030] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A longan multi-stage screener, comprising a housing (10), characterized in that: The shell (10) is provided with a built-in groove (23), and a screening component for vibrating and pushing longans is arranged in the built-in groove (23). The screening component comprises an eccentric wheel (15), a crank (16), a push rod (17), an axle (18), a booster rod (19) and a moving block (20). The eccentric wheel (15) is rotatably connected to the shell (10) and the crank (16) and is slidably connected to the moving block (20). The push rod (17) is rotatably connected to the crank (16) and the axle (18). The axle (18) is rotatably connected to the built-in groove (23) and the booster rod (19). The booster rod (19) is slidably connected to the moving block (20) and the built-in groove (23).

2. A longan multi-stage screener according to claim 1, characterized in that: Different rotating holes are symmetrically provided on opposite sides of the shell (10), and shaft rings for rotation are respectively arranged in the two rotating holes, and different connecting columns (14) are rotatably connected through the shaft rings. A motor (11) is respectively placed on opposite sides of the shell (10), and the output ends of the two motors (11) are respectively connected to one end of two connecting columns (14), and the other ends of the connecting columns (14) are fixedly connected to an eccentric wheel (15).

3. A longan multi-stage screener according to claim 1, characterized in that: A connecting block (12) and a connecting seat (13) are fixedly connected to the inner wall surface of the shell (10); two connecting blocks (12) are symmetrically arranged; the connecting seat (13) is located on one side of the connecting block (12); sliding grooves are provided on the opposite surfaces of the two connecting blocks (12) and are slidably connected to the moving block (20) through the sliding grooves; a short column is fixedly connected to one side of the connecting seat (13); a movable ring is provided on the short column and is rotatably connected to the shaft rod (18) through the ring.

4. A longan multi-stage screener according to claim 1, characterized in that: A cylinder is fixedly connected to a plane on one side of the eccentric wheel (15), a rotatable bearing is provided on the cylinder, and the crank (16) is rotatably connected to the cylinder via the bearing; the other end of the crank (16) is fixedly connected to a second cylinder, and a second bearing is provided on the second cylinder, and the push rod (17) is rotatably connected to the push rod (17) via the second bearing; the output ends of the push rod (17) and the booster rod (19) on the same side are fixedly connected to different third cylinders, and the third cylinders are provided with different third bearings, and the same shaft (18) is rotatably connected via different third bearings.

5. A longan multi-stage screener according to claim 1, characterized in that: The top of the moving block (20) is a square block, and a trapezoidal slide groove is provided inside the moving block (20). The bottom of the moving block (20) is fixedly connected with a ring groove block (24). The ring groove block (24) is an elliptical ring, and its internal width is greater than or equal to the diameter of the eccentric wheel (15). The eccentric wheel (15) slides inside the ring groove. The other end of the booster rod (19) is fixedly connected with a sliding seat (21). The bottom of the sliding seat (21) is fixedly connected with a trapezoidal protrusion similar in shape and size to the trapezoidal slide groove, and the trapezoidal protrusion slides in the trapezoidal slide groove.

6. A longan multi-stage screener according to claim 5, characterized in that: Two slot blocks (22) are fixedly connected to one side of the moving block (20), the length of the slot block (22) is greater than or equal to the sum of the lengths of the two connecting blocks (12) and the moving block (20), and the two slot blocks (22) are slidably connected to the second sieve plate (26) and the third sieve plate (27), respectively.

7. A longan multi-stage screener according to claim 6, characterized in that: The second sieve plate (26) and the third sieve plate (27) are fixedly connected to each other by bolts on a side plane of the shaft rod (18); the first sieve plate (25) is fixedly connected to the top of the sliding seat (21) by bolts; the width of the first sieve plate (25) is less than or equal to the width of the built-in groove (23); the first sieve plate (25) slides on the built-in groove (23); a slideway for driving the second sieve plate (26) and the third sieve plate (27) is provided inside the two groove blocks (22); protrusions of the same shape and size are respectively provided on both sides of the second sieve plate (26) and the third sieve plate (27); the protrusions are similar in shape and size to the slideway and slide therein; the bottom of the built-in groove (23) is an inclined surface; the inner bottom surfaces of the first sieve plate (25), the second sieve plate (26) and the third sieve plate (27) are also arranged as inclined surfaces.

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