Melon seed screening device

Abstract

The invention discloses a melon seed screening device, and belongs to the technical field of melon seed processing, and the melon seed screening device is characterized by comprising a box body, the box body is connected with a screen, the screen divides the box body into a first space and a second space, the first space is located above the second space, and the box body is connected with an output pipe communicated with the first space; a screening box is arranged in the first space and connected with the box body through a clamping assembly. Screening holes are formed in the two ends, in the first direction, of the screening box correspondingly, the diameter of the screening holes is larger than that of meshes of the screen, the box body is connected with a driving assembly, and when the driving assembly is connected with the screening box, the driving assembly drives the screening box to reciprocate on the clamping assembly in the first direction. The box body is connected with a feeding pipe and a discharging pipe, the feeding pipe is selectively communicated with the screening box, the discharging pipe is selectively communicated with the screening box, and at most one of the feeding pipe and the discharging pipe is communicated with the screening box, so that the effect of improving the screening precision and efficiency of melon seeds is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of melon seed processing, and in particular to a melon seed screening device. Background Art

[0002] At present, melon seeds are a popular snack. In the processing of melon seeds, screening is a key link, which is used to grade melon seeds of different sizes and qualities.

[0003] Some melon seed screening components currently on the market usually use a single screen for screening. Although this method has a simple structure, the screening effect is not ideal. On the one hand, a single screen is difficult to simultaneously meet the screening needs of melon seeds of different sizes; on the other hand, these components often require frequent manual intervention during operation, which not only increases labor intensity, but also affects the accuracy and efficiency of screening. Summary of the invention

[0004] In order to improve the accuracy and efficiency of melon seed screening, the present invention provides a melon seed screening device.

[0005] The melon seed screening device provided by the present invention adopts the following technical solution: A melon seed screening device, comprising a box body, the box body is connected to a screen, the screen separates the box body into a first space and a second space, the first space is located above the second space, the box body is connected to an output pipe, the output pipe is communicated with the first space, the output pipe is used to discharge the melon seeds screened by the screen; a screening box is provided in the first space, the screening box is connected to the box body by a clamping assembly, the clamping assembly is used to clamp the screening box and drive the screening box to move; the screening box is provided with sieve holes at both ends along the first direction, the diameter of the sieve holes is larger than the mesh diameter of the screen, and the box body A driving assembly is connected, and when the driving assembly is connected to the sub-screening box, the driving assembly drives the sub-screening box to reciprocate along the first direction on the clamping assembly, so that the melon seeds can collide with the two side walls of the sub-screening box along the first direction; the box body is connected to a loading pipe and a loading pipe, the loading pipe is selectively connected to the sub-screening box, and the loading pipe is selectively connected to the sub-screening box, and at most one of the loading pipe and the loading pipe is connected to the sub-screening box; the clamping assembly drives the sub-screening box to move, so that when the driving assembly is connected to the sub-screening box, the loading pipe and the loading pipe are both disconnected from the sub-screening box.

[0006] By adopting the above technical solution, when in use, open the feeding tube and close the feeding tube, and feed the melon seeds to be screened into the screening box through the feeding tube. Adjust the clamping assembly, and the clamping assembly drives the screening box to connect with the driving assembly, and at the same time close the feeding tube and the feeding tube. Start the driving assembly, and the driving assembly drives the screening box to reciprocate along the first direction, so that the melon seeds can collide with the two side walls of the screening box along the first direction, so that the small melon seeds in the melon seeds are screened out through the sieve holes, and the preliminary screening of the melon seeds is achieved. The melon seeds after preliminary screening enter the first space and fall on the screen. The screen further screens the melon seeds again. The melon seeds on the screen enter the output pipe for output, and the smaller melon seeds pass through the screen into the second space. The whole process realizes automated operation. The screen and the screening box cooperate to perform two-stage screening of the melon seeds, which improves the accuracy and efficiency of melon seed screening.

[0007] The clamping assembly is adjusted to connect the screening box with the feeding pipe, so that the melon seeds in the screening box are released from the feeding pipe. The operator uses a collecting tool to collect the screened melon seeds separately.

[0008] Preferably, the clamping assembly includes a clamping plate, a first rod, a ball, a threaded rod and a handle, the clamping plate semi-covering the outside of the sub-screening box, one end of the first rod is connected to the clamping plate, and the other end is slidably connected to the box body, the ball is arranged between the clamping plate and the sub-screening box, the ball is rotatably connected to the clamping plate, and the ball is slidably abutted against the sub-screening box; the first end of the threaded rod is rotatably connected to the clamping plate, and the other end passes through the box body, the threaded rod is threadedly connected to the box body, the threaded rod can make the sub-screening box approach or move away from the driving assembly, the handle is arranged outside the box body, and the handle is fixedly connected to the threaded rod.

[0009] By adopting the above technical solution, the handle is turned, the handle drives the threaded rod to rotate, the threaded rod drives the clamping plate to move, the clamping plate drives the screening box to move, and the screening box is moved close to or away from the driving assembly. When the melon seeds need to be screened, the screening box is brought close to the driving assembly and connected to the driving assembly. When the driving assembly drives the screening box to move, the ball bearings reduce the friction between the clamping plate and the screening box.

[0010] Preferably, the driving assembly includes a motor, a driving gear, a second rod, a moving frame, a first rack and a second rack, the motor is connected to the outer wall of the box body, the driving shaft of the motor passes through the box body, the driving gear is arranged inside the box body and connected to the driving shaft of the motor, and the driving gear is an incomplete gear; one end of the second rod is connected to the moving frame, and the other end is slidably abutted with the box body, and the moving frame is sleeved on the driving gear; the first rack and the second rack are both fixedly connected to the moving frame, and the length direction of the first rack and the length direction of the second rack are both parallel to the first direction, the first rack and the second rack are respectively located on both sides of the driving gear, and the first rack or the second rack is meshed with the driving gear; a slot is provided on the sub-screening box, and after the moving frame is inserted into the slot, the moving frame drives the sub-screening box to reciprocate along the first direction.

[0011] By adopting the above technical solution, the position of the screening box is first adjusted so that the moving frame is inserted into the card slot. The motor is started to drive the gear to rotate. Since the driving gear is an incomplete gear, the driving gear is alternately meshed with the first rack and the second rack, so that the gear drives the moving frame to reciprocate along the first direction, further driving the screening box to perform reciprocating screening operations, thereby improving the accuracy and efficiency of melon seed screening.

[0012] Preferably, the feeding pipe is connected to a first baffle, the feeding pipe is connected to a second baffle, and the screening box is provided with a feeding hole for feeding and a feeding hole for feeding; when the feeding pipe is connected to the feeding hole, the second baffle blocks the feeding hole; when the feeding pipe is connected to the feeding hole, the first baffle blocks the feeding hole; when the movable frame is inserted into the slot, the first baffle blocks the feeding hole, and the second baffle blocks the feeding hole.

[0013] By adopting the above technical solution, the feeding hole of the screening box is blocked during the feeding process, ensuring that the melon seeds will not leak out during the screening process, and continuous screening operations can be performed as needed. When the movable frame is inserted into the card slot, the feeding hole and the feeding hole are blocked to ensure that the melon seeds will not leak out during the screening process. The accuracy of the entire melon seed screening process is improved.

[0014] Preferably, the first baffle is connected to a limiting block near the side wall of the sub-screening box, and a limiting groove is provided on the top of the sub-screening box, the limiting block is arranged in the limiting groove and is slidably connected to the sub-screening box; the limiting groove includes a first side, a second side, a third side and a fourth side, the length of the second side is greater than the length of the first side, the third side connects the first side and the second side, the fourth side connects the first side and the second side, the third side and the fourth side are both set with an arc, the center of the third side is away from the fourth side, and the center of the fourth side is away from the third side; the third side and / or the fourth side are provided with a protrusion, when the limiting block abuts against the protrusion, the feeding pipe is connected with the feeding hole, the limiting block slides over the protrusion and abuts against the first side, and the feeding pipe is connected with the feeding hole.

[0015] By adopting the above technical solution, since the sub-screening box will be displaced in the first direction and the length direction of the threaded rod, the limiting groove and the limiting block cooperate to facilitate the connection between the sub-screening box and the loading pipe or the unloading pipe.

[0016] In the process of the sub-screening box approaching the moving frame, the limit block approaches from the first side to the direction close to the second side, and the length of the second side is greater than the length of the first side. Therefore, in the process of driving the sub-screening box to move along the first direction, the limit block can move in the area of ​​the limit groove close to the second side, and does not affect the movement of the sub-screening box along the first direction. When the sub-screening box is separated from the moving frame and the feeding pipe is connected to the sub-screening box, the threaded rod is directly adjusted to make the limit block close to the protrusion. Since the third and fourth sides are both set with arcs, even if the straight line where the limit block and the protrusion are located is set at an angle to the axis of the threaded rod, the limit block will abut against the third or fourth side, and the third or fourth side will limit the limit block, thereby making the sub-screening box move and adjust in the first direction, and finally making the limit block abut against the protrusion, at which time the feeding pipe is connected to the sub-screening box. Continue to rotate the threaded rod, the limit block slides over the protrusion until the limit block abuts against the first side, so that the feeding pipe is connected to the sub-screening box.

[0017] Preferably, the inner wall of the box body along the first direction is connected with a cleaning brush, the bristles of the cleaning brush are aligned with the sub-screening box, and when the sub-screening box abuts against the cleaning brush, the sieve holes are cleaned.

[0018] By adopting the above technical solution and setting the cleaning brush, the sieve holes on the side wall of the screening box can be cleaned when the screening box moves along the first direction to avoid clogging of the sieve holes, thereby improving the screening efficiency of the melon seeds.

[0019] Preferably, the screen is tilted along a second direction, the second direction is perpendicular to the first direction, and the output pipe is located at the lowest point of the screen.

[0020] By adopting the above technical solution, when the melon seeds screened by the screening box fall onto the screen, the possibility of the melon seeds directly entering the output pipe is reduced, thereby improving the screening accuracy of the melon seeds. The inclined screen facilitates the melon seeds left by the screen to enter the output pipe.

[0021] Preferably, the box body is a columnar structure, and a buffer block is fixedly connected to the inner wall of the box body, and the buffer block is located below the screen. The screen is connected to a control component, and the control component is connected to the motor. The control component is used to drive the screen to move away from the buffer block. After the screen is a fixed distance away from the buffer block, the screen falls freely until the screen abuts against the buffer block.

[0022] By adopting the above technical solution, the control component drives the screen to move, and then the screen falls freely, causing the screen to collide with the buffer block, thereby causing the screen to vibrate, reducing the possibility of screen blockage and improving the screening efficiency of melon seeds.

[0023] Preferably, the control component includes a control gear and a control rack, the control gear is fixedly connected to the drive shaft of the motor, the control gear is arranged between the drive gear and the box, the control gear is an incomplete gear, the control rack is connected to the screen, and the control rack is meshed with the control gear.

[0024] By adopting the above technical solution, the motor rotates and drives the control gear to rotate. When the control gear is meshed with the control rack, the control gear drives the control rack to move, and the control rack drives the screen to move. After the screen moves a fixed distance, the control gear and the rack are disengaged, the screen and the control rack fall quickly, the screen hits the buffer block, and the screen vibrates.

[0025] Preferably, a plurality of legs are fixedly connected to the bottom of the box body, and a first box and a second box are provided below the box body, the first box being used to collect melon seeds discharged from the feeding pipe; a discharge hole is provided at the bottom of the box body, and the inner bottom surface of the box body is inclined upward from one end close to the discharge hole to the other end, and the second box is used to collect melon seeds discharged from the box body; a third box is provided near the box body, and the third box is used to collect melon seeds discharged from the output pipe.

[0026] By adopting the above technical solution, the melon seeds are sent to the screening component and undergo two-stage screening. The first box is used to collect melon seeds with larger volume, the third box is used to collect melon seeds with medium volume, and the second box is used to collect melon seeds with smaller volume, thereby improving the accuracy and efficiency of melon seed screening.

[0027] In summary, the present invention has the following beneficial effects: When in use, open the feeding pipe, close the feeding pipe, and feed the melon seeds to be screened into the screening box through the feeding pipe. Adjust the clamping assembly, the clamping assembly drives the screening box to connect with the driving assembly, and close the feeding pipe and the feeding pipe at the same time. Start the driving assembly, the driving assembly drives the screening box to reciprocate along the first direction, so that the melon seeds can collide with the two side walls of the screening box along the first direction, so that the small melon seeds in the melon seeds are screened out through the sieve holes, and the preliminary screening of the melon seeds is achieved. The melon seeds after preliminary screening enter the first space and fall on the screen. The screen further screens the melon seeds again. The melon seeds on the screen enter the output pipe for output, and the smaller melon seeds pass through the screen into the second space. The whole process realizes automated operation. The screen and the screening box cooperate to perform two-stage screening of the melon seeds, which improves the accuracy and efficiency of the screening of the melon seeds. Adjust the clamping assembly to connect the screening box with the feeding pipe, so that the melon seeds in the screening box are released from the feeding pipe. The operator uses the collection tool to collect the screened melon seeds separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The utility model is a schematic diagram of the overall structure of a melon seed screening device.

[0029] Figure 2 It is a schematic diagram of the internal structure of the screening device.

[0030] Figure 3 Designed to show the positional relationship between the screen box and the cleaning brush.

[0031] Figure 4 It is a schematic diagram of the structure of the drive component.

[0032] Figure 5 Aims to show the positional relationship between the limit block and the protrusion.

[0033] Figure 6 It is a structural diagram of the control component.

[0034] Description of reference numerals: 1. Box body; 11. Output pipe; 12. Mounting plate; 13. Buffer block; 14. First box; 15. Second box; 16. Discharge hole; 17. Third box; 2. Screen; 3. Screening box; 31. Screen hole; 32. Limiting groove; 33. Card slot; 34. Bump; 4. Clamping assembly; 41. Clamping plate; 42. First rod; 43. Ball; 44. Threaded rod; 45. Handle; 5. Driving assembly; 51. Motor; 52. Driving gear; 53. Second rod; 54. Moving frame; 55. First rack; 56. Second rack; 6. Cleaning brush; 7. Feeding pipe; 71. First baffle; 711. Limiting block; 8. Feeding pipe; 81. Second baffle; 9. Control assembly; 91. Control gear; 92. Control rack. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0036] A melon seed screening device, referring to Figure 1 and Figure 2 , including box 1 and Figure 2 The box body 1 is connected with a screen 2, and the screen 2 separates the box body 1 into a first space and a second space. The first space is located above the second space. The box body 1 is connected with an output pipe 11, and the output pipe 11 is connected with the first space. The output pipe 11 is used to discharge the melon seeds sieved by the screen 2. A screening box 3 is provided in the first space, and the screening box 3 is connected to the box body 1 through a clamping assembly 4. The clamping assembly 4 is used to clamp the screening box 3 and drive the screening box 3 to move. Screen holes 31 are provided at both ends of the screening box 3 along the first direction. The diameter of the screen holes 31 is larger than the mesh diameter of the screen 2. The box body 1 is connected with a driving assembly 5. When the driving assembly 5 is connected to the screening box 3, the driving assembly 5 drives the screening box 3 to reciprocate along the first direction on the clamping assembly 4, so that the melon seeds can collide with the two side walls of the screening box 3 along the first direction. The box body 1 is connected with a feeding pipe 7 and a feeding pipe 8, the feeding pipe 7 is selectively connected with the sub-screening box 3, and the feeding pipe 8 is selectively connected with the sub-screening box 3, and at most one of the feeding pipe 7 and the feeding pipe 8 is connected with the sub-screening box 3. The clamping assembly 4 drives the sub-screening box 3 to move, so that when the driving assembly 5 is connected with the sub-screening box 3, the feeding pipe 7 and the feeding pipe 8 are disconnected from the sub-screening box 3.

[0037] When in use, open the feeding pipe 7, close the feeding pipe 8, and feed the melon seeds to be screened into the screening box 3 through the feeding pipe 7. Adjust the clamping assembly 4, which drives the screening box 3 to connect with the driving assembly 5, and close the feeding pipe 7 and the feeding pipe 8 at the same time. Start the driving assembly 5, which drives the screening box 3 to reciprocate along the first direction, so that the melon seeds can collide with the two side walls of the screening box 3 along the first direction, so that the small melon seeds in the melon seeds are screened out through the sieve holes 31, and the preliminary screening of the melon seeds is achieved. The melon seeds after preliminary screening enter the first space and fall on the screen 2. The screen 2 further screens the melon seeds again. The melon seeds on the screen 2 enter the output pipe 11 for output, and the smaller melon seeds pass through the screen 2 into the second space. The whole process realizes automated operation. The screen 2 cooperates with the screening box 3 to perform two-stage screening of the melon seeds, which improves the accuracy and efficiency of the melon seed screening.

[0038] Reference Figure 2 The box body 1 is a columnar structure, and a plurality of legs are fixedly connected to the bottom of the box body 1. The legs keep a distance between the box body 1 and the ground. A first box 14 and a second box 15 are placed under the box body 1. The first box 14 is aligned with the discharge pipe 8 and is used to collect the melon seeds discharged from the discharge pipe 8. A discharge hole 16 is opened at the bottom of the box body 1. The inner bottom surface of the box body 1 is inclined upward from one end close to the discharge hole 16 to the other end. The second box 15 is aligned with the discharge hole 16 and is used to collect the melon seeds discharged from the box body 1.

[0039] Reference Figure 2 The screening box 3 is a rectangular box body 1, the screening box 3 is placed horizontally, and the first direction is the length direction of the screening box 3. Both ends of the screening box 3 are provided with a plurality of sieve holes 31, and the diameter of the sieve holes 31 is larger than the aperture of the screen 2.

[0040] The melon seeds pass through the sieve hole 31 for primary screening, and the melon seeds that have passed the primary screening pass through the sieve 2 for secondary screening.

[0041] Reference Figure 2 The screen 2 is tilted along the second direction. The second direction is parallel to the horizontal direction and perpendicular to the first direction. The output pipe 11 is located at the lowest point of the screen 2. A third box 17 is placed below the output pipe 11. The third box 17 is used to collect the melon seeds discharged from the output pipe 11.

[0042] Reference Figure 2 and Figure 3 A cleaning brush 6 is fixedly connected to the inner wall of the box body 1 along the first direction. Two cleaning brushes 6 are symmetrically arranged, and the bristles of the two cleaning brushes 6 are aligned with the screening box 3.

[0043] The cleaning brush 6 can clean the sieve holes 31 on the side wall of the screening box 3 when the screening box 3 moves along the first direction, thereby preventing the sieve holes 31 from being blocked, thereby improving the screening efficiency of the melon seeds.

[0044] Reference Figure 2 The clamping assembly 4 is located at one side of the sub-screening box 3 along the length direction. The clamping assembly 4 includes a clamping plate 41, a first rod 42, a ball 43, a threaded rod 44 and a handle 45. The clamping plate 41 is a C-shaped plate, and the clamping plate 41 is covered on the outside of the sub-screening box 3. The first rod 42 is vertically arranged, and the bottom end of the first rod 42 is fixedly connected to the clamping plate 41, and the top end is slidably connected to the box body 1. A plurality of ball 43 are provided, and the plurality of ball 43 are arranged between the clamping plate 41 and the sub-screening box 3. The ball 43 is rotatably connected to the clamping plate 41 and slidably abuts against the sub-screening box 3.

[0045] Reference Figure 2 The threaded rod 44 is placed horizontally, one end of the threaded rod 44 extends into the box body 1 and is rotatably connected to the screening box 3, and the threaded rod 44 is threadedly connected to the box body 1. The second end of the threaded rod 44 is fixedly connected to the handle 45. The sliding direction of the first rod 42 in the box body 1 is the same as the length direction of the threaded rod 44.

[0046] The handle 45 is rotated, and the handle 45 drives the threaded rod 44 to rotate, and the threaded rod 44 drives the clamping plate 41 to move, and the clamping plate 41 drives the sub-screening box 3 to move, so that the sub-screening box 3 is close to or away from the driving assembly 5.

[0047] Reference Figure 2 and Figure 4The driving assembly 5 includes a motor 51, a driving gear 52, a second rod 53, a moving frame 54, a first rack 55 and a second rack 56. The outer wall of the box body 1 is fixedly connected with a mounting plate 12, and the mounting plate 12 is placed horizontally. The motor 51 is fixedly connected to the mounting plate 12, and the driving shaft of the motor 51 extends into the box body 1. The motor 51 is electrically connected to a control module, and the control module can drive the motor 51 to reset after the melon seed screening is completed. The driving gear 52 is an incomplete gear, and the driving gear 52 is fixedly connected to the driving shaft of the motor 51.

[0048] Reference Figure 2 and Figure 4 The second rod 53 is vertically arranged, the top of the second rod 53 is slidably connected to the box body 1, and the bottom is fixedly connected to the moving frame 54. The moving frame 54 is vertically arranged, and the moving frame 54 is sleeved on the gear. A slot 33 is provided on the side wall of the screening box 3 close to the moving frame 54, and the slot 33 matches the moving frame 54. The moving frame 54 is plugged into the slot 33 and is connected to the screening box 3.

[0049] Reference Figure 4 The first rack 55 and the second rack 56 are both arranged horizontally, and are fixedly connected to the inner wall of the moving frame 54. The first rack 55 is located below the second rack 56, and the length direction of the first rack 55 and the second rack 56 is parallel to the first direction. The first rack 55 or the second rack 56 is meshed with the driving gear 52.

[0050] First, adjust the position of the screening box 3 so that the moving frame 54 is inserted into the slot 33. Start the motor 51 to rotate the driving gear 52. Since the driving gear 52 is an incomplete gear, the driving gear 52 is alternately meshed with the first rack 55 and the second rack 56, so that the gear drives the moving frame 54 to reciprocate along the first direction, further driving the screening box 3 to perform reciprocating screening operations, thereby improving the accuracy and efficiency of melon seed screening.

[0051] Reference Figure 2 The upper material pipe 7 and the lower material pipe 8 are both arranged vertically, and the upper material pipe 7 and the lower material pipe 8 are arranged staggered, and the extension line of the lower material pipe 8 is located on the side of the upper material pipe 7 close to the clamping plate 41. The upper material pipe 7 is fixedly connected to a first baffle 71, and the first baffle 71 is located on the side of the upper material pipe 7 close to the moving frame 54. The lower material pipe 8 is fixedly connected to a second baffle 81, and the second baffle 81 is located on the side of the lower material pipe 8 close to the moving frame 54.

[0052] Reference Figure 2 and Figure 4The screening box 3 is provided with a loading hole for loading and a discharge hole for discharging. When the loading hole is connected to the loading pipe 7, the second baffle 81 blocks the discharge hole. When the discharge pipe 8 is connected to the discharge hole, the first baffle 71 blocks the loading hole. When the moving frame 54 is inserted into the card slot 33, the first baffle 71 blocks the loading hole, and the second baffle 81 blocks the discharge hole. The bottom of the screening box 3 is inclined from one end close to the discharge hole to the other end.

[0053] During the feeding process of the screening box 3, the feeding hole is blocked to ensure that the melon seeds will not leak out during the screening process, and continuous screening operation can be performed as needed. When the movable frame 54 is inserted into the slot 33, the feeding hole and the feeding hole are blocked to ensure that the melon seeds will not leak out during the screening process. The whole melon seed screening process has improved accuracy.

[0054] Reference Figure 5 The top of the screening box 3 is provided with a limiting groove 32, which includes a first side, a second side, a third side and a fourth side. The first side and the second side are parallel to the first direction, the first side is close to the driving device, and the second side is close to the clamping device. The length of the second side is greater than the length of the first side. The third side connects the first side and the second side, and the fourth side connects the first side and the second side. The third side and the fourth side are both set in an arc, and the center of the third side is far away from the fourth side, and the center of the fourth side is far away from the third side.

[0055] The limit block 711 moves from the first side to the second side, and the length of the second side is greater than the length of the first side. Therefore, when driving the sub-screening box 3 to move along the first direction, the limit block 711 can move in the area of ​​the limit groove 32 close to the second side without affecting the movement of the sub-screening box 3 along the first direction.

[0056] Reference Figure 2 and Figure 5 , the third side and / or the fourth side are provided with a protrusion 34, and the protrusion 34 is fixedly connected to the screening box 3. Two limit blocks 711 are fixedly connected to the bottom of the first baffle 71, and the two limit blocks 711 are respectively located on both sides of the feeding pipe 7. When any limit block 711 abuts against the side wall of the protrusion 34 close to the feeding hole, the feeding pipe 7 is connected to the feeding hole. When the limit block 711 slides over the protrusion 34 and abuts against the first side, the discharge pipe 8 is connected to the discharge hole.

[0057] When the sub-screening box 3 is separated from the moving frame and the feeding pipe 7 is connected to the sub-screening box 3, the threaded rod 44 is directly adjusted to make the limit block 711 close to the protrusion 34. Since the third side and the fourth side are both set with arcs, even if the limit block 711 and the straight line where the protrusion 34 is located are set at an angle with the axis of the threaded rod 44, the limit block 711 will abut against the third side or the fourth side, and the third side or the fourth side limits the limit block 711, thereby moving and adjusting the sub-screening box 3 in the first direction, and finally making the limit block 711 abut against the protrusion 34, at which time the feeding pipe 7 is connected to the sub-screening box 3. Continue to rotate the threaded rod 44, the limit block 711 slides over the protrusion 34, until the limit block 711 abuts against the first side, so that the feeding pipe 8 is connected to the sub-screening box 3.

[0058] Reference Figure 2 and Figure 6 The box body 1 is fixedly connected with a buffer block 13, which is annular. The buffer block 13 is tilted along the second direction, and the writing angle of the buffer block 13 matches the screen 2. The screen 2 is slidably abutted against the inner wall of the box body 1, and the screen 2 is abutted against the top of the buffer block 13.

[0059] Reference Figure 2 and Figure 6 The screen 2 is connected with a control assembly 9, which includes a control gear 91 and a control rack 92. The control gear 91 is fixedly connected to the drive shaft of the motor 51, and the control gear 91 is arranged between the drive gear 52 and the box body 1. The control gear 91 is an incomplete gear. The control rack 92 is vertically arranged, and the bottom end of the control rack 92 is fixedly connected to the screen 2, and the control rack 92 is meshed with the control gear 91.

[0060] The motor 51 rotates and drives the control gear 91 to rotate. When the control gear 91 is meshed with the control rack 92, the control gear 91 drives the control rack 92 to move, and the control rack 92 drives the screen 2 to move. After the screen 2 moves a fixed distance, the control gear 91 is disengaged from the rack, the screen 2 and the control rack 92 fall rapidly, the screen 2 hits the buffer block 13, and the screen 2 vibrates.

[0061] The operating principle of the present application is as follows: when in use, adjust the handle 45, the handle 45 drives the threaded rod 44 to rotate, the threaded rod 44 drives the clamping plate 41 to move, and the clamping plate 41 drives the screening box 3 to move, so that the limit rod and the protrusion 34 are close to the side wall of the feeding hole, the feeding pipe 7 is connected with the screening box 3, the feeding pipe 8 is closed, and the melon seeds to be screened are sent into the screening box 3 through the feeding pipe 7.

[0062] The control module adjusts the motor 51 to reset, thereby resetting the moving frame 54. Then adjust the handle 45 to bring the screening box 3 close to the drive assembly 5, thereby inserting the moving frame 54 into the card slot 33, and closing the feeding pipe 7 and the feeding pipe 8. Start the motor 51, and the driving gear 52 rotates. Since the driving gear 52 is an incomplete gear, the driving gear 52 is alternately meshed with the first rack 55 and the second rack 56, so that the gear drives the moving frame 54 to reciprocate in the first direction, so that the melon seeds can collide with the two side walls of the screening box 3 in the first direction, so that the small melon seeds in the melon seeds are screened out through the sieve holes 31, and the preliminary screening of the melon seeds is achieved.

[0063] After the preliminary screening, the melon seeds enter the first space and fall on the screen 2. The screen 2 further screens the melon seeds. The melon seeds on the screen 2 enter the output pipe 11 and are output to the third box 17. The smaller melon seeds pass through the screen 2 and enter the second space, and are discharged to the second box 15 through the discharge hole 16. The handle 45 is adjusted to make the sub-screen box 3 away from the drive assembly 5. Then, due to the cooperation between the limit block 711 and the third side or the limit block 711 and the fourth side, the limit block 711 abuts against the protrusion 34 again. The handle 45 is continuously turned, and the limit block 711 slides over the protrusion 34 until the limit block 711 abuts against the first side, so that the feed pipe 8 is connected with the sub-screen box 3. Since the inner bottom surface of the sub-screen 2 is inclined, the melon seeds in the sub-screen 2 are discharged from the feed pipe 8 and collected by the first box 14.

[0064] The whole process realizes automated operation, and the screen 2 and the screening box 3 cooperate to perform two-stage screening of the melon seeds, thereby improving the accuracy and efficiency of the melon seed screening.

[0065] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A melon seed screening device, characterized in that: The invention comprises a box (1), the box (1) being connected to a screen (2), the screen (2) separating the box (1) into a first space and a second space, the first space being located above the second space, the box (1) being connected to an output pipe (11), the output pipe (11) being in communication with the first space, and the output pipe (11) being used to discharge the melon seeds screened by the screen (2); A screening box (3) is provided in the first space, and the screening box (3) is connected to the box body (1) via a clamping assembly (4), and the clamping assembly (4) is used to clamp the screening box (3) and drive the screening box (3) to move; The sub-screening box (3) is provided with sieve holes (31) at both ends along the first direction, the diameter of the sieve holes (31) is larger than the mesh diameter of the sieve (2), the box body (1) is connected with a driving component (5), and when the driving component (5) is connected to the sub-screening box (3), the driving component (5) drives the sub-screening box (3) to reciprocate along the first direction on the clamping component (4), so that the melon seeds can collide with the two side walls of the sub-screening box (3) along the first direction; The box body (1) is connected with a feeding pipe (7) and a feeding pipe (8), the feeding pipe (7) is selectively connected to the screening box (3), the feeding pipe (8) is selectively connected to the screening box (3), and at most one of the feeding pipe (7) and the feeding pipe (8) is connected to the screening box (3); The clamping assembly (4) drives the screening box (3) to move, so that when the driving assembly (5) is connected to the screening box (3), the feeding pipe (7) and the feeding pipe (8) are both disconnected from the screening box (3).

2. A melon seed screening device according to claim 1, characterized in that: The clamping assembly (4) comprises a clamping plate (41), a first rod (42), a ball (43), a threaded rod (44) and a handle (45); the clamping plate (41) half covers the outside of the sub-screening box (3); one end of the first rod (42) is connected to the clamping plate (41) and the other end is slidably connected to the box body (1); the ball (43) is arranged between the clamping plate (41) and the sub-screening box (3); the ball (43) is rotatably connected to the clamping plate (41) and the ball (43) is slidably abutted against the sub-screening box (3); The first end of the threaded rod (44) is rotatably connected to the clamping plate (41), and the other end passes through the box body (1); the threaded rod (44) is threadedly connected to the box body (1); the threaded rod (44) can make the screening box (3) approach or move away from the driving assembly (5); the handle (45) is arranged outside the box body (1), and the handle (45) is fixedly connected to the threaded rod (44).

3. A melon seed screening device according to claim 2, characterized in that: The driving assembly (5) comprises a motor (51), a driving gear (52), a second rod (53), a moving frame (54), a first rack (55) and a second rack (56); the motor (51) is connected to the outer wall of the box (1); the driving shaft of the motor (51) passes through the box (1); the driving gear (52) is arranged inside the box (1) and connected to the driving shaft of the motor (51); the driving gear (52) is an incomplete gear; One end of the second rod (53) is connected to the moving frame (54), and the other end is in sliding contact with the box body (1); the moving frame (54) is sleeved on the driving gear (52); The first rack (55) and the second rack (56) are both fixedly connected to the moving frame (54); the length direction of the first rack (55) and the length direction of the second rack (56) are both parallel to the first direction; the first rack (55) and the second rack (56) are respectively located on both sides of the driving gear (52); the first rack (55) or the second rack (56) is meshed with the driving gear (52); The screening box (3) is provided with a slot (33), and after the movable frame (54) is inserted into the slot (33), the movable frame (54) drives the screening box (3) to reciprocate along a first direction.

4. A melon seed screening device according to claim 3, characterized in that: The feeding pipe (7) is connected to a first baffle (71), the feeding pipe (8) is connected to a second baffle (81), and the screening box (3) is provided with a feeding hole for feeding and a feeding hole for discharging; When the feeding pipe (7) is connected to the feeding hole, the second baffle (81) blocks the feeding hole; When the feed pipe (8) is connected to the feed hole, the first baffle (71) blocks the feed hole; When the movable frame (54) is inserted into the card slot (33), the first baffle (71) blocks the loading hole, and the second baffle (81) blocks the unloading hole.

5. A melon seed screening device according to claim 4, characterized in that: The first baffle (71) is connected to a limiting block (711) near a side wall of the screening box (3); a limiting groove (32) is provided on the top of the screening box (3); the limiting block (711) is arranged in the limiting groove (32) and is slidably connected to the screening box (3); The limiting groove (32) comprises a first side, a second side, a third side and a fourth side, the length of the second side is greater than the length of the first side, the third side connects the first side and the second side, the fourth side connects the first side and the second side, the third side and the fourth side are both arranged in an arc, the center of the third side is far away from the fourth side, and the center of the fourth side is far away from the third side; The third side and / or the fourth side is provided with a protrusion (34); when the limiting block (711) abuts against the protrusion (34), the feeding tube (7) is connected with the feeding hole; the limiting block (711) slides over the protrusion (34) and abuts against the first side; and the feeding tube (8) is connected with the feeding hole.

6. A melon seed screening device according to claim 2, characterized in that: The inner wall of the box body (1) along the first direction is connected to a cleaning brush (6), the bristles of the cleaning brush (6) are aligned with the screening box (3), and when the screening box (3) abuts against the cleaning brush (6), the sieve holes (31) are cleaned.

7. A melon seed screening device according to any one of claims 3 to 5, characterized in that: The screen (2) is arranged to be inclined along a second direction, the second direction is perpendicular to the first direction, and the output pipe (11) is located at the lowest point of the screen (2).

8. The melon seed screening device according to claim 7, characterized in that: The box body (1) is a columnar structure. A buffer block (13) is fixedly connected to the inner wall of the box body (1). The buffer block (13) is located below the screen (2). The screen (2) is connected to a control component (9). The control component (9) is connected to the motor (51). The control component (9) is used to drive the screen (2) to move away from the buffer block (13). After the screen (2) is at a fixed distance from the buffer block (13), the screen (2) falls freely until the screen (2) abuts against the buffer block (13).

9. The melon seed screening device according to claim 8, characterized in that: The control assembly (9) comprises a control gear (91) and a control rack (92); the control gear (91) is fixedly connected to the drive shaft of the motor (51); the control gear (91) is arranged between the drive gear (52) and the box (1); the control gear (91) is an incomplete gear; the control rack (92) is connected to the screen (2); and the control rack (92) is meshed with the control gear (91).

10. The melon seed screening device according to claim 1, characterized in that: A plurality of legs are fixedly connected to the bottom of the box body (1); a first box (14) and a second box (15) are provided below the box body (1); the first box (14) is used to collect melon seeds discharged from the discharge pipe (8); a discharge hole (16) is provided at the bottom of the box body (1); the inner bottom surface of the box body (1) is inclined upward from one end close to the discharge hole (16) to the other end; the second box (15) is used to collect melon seeds discharged from the box body (1); a third box (17) is provided near the box body (1); the third box (17) is used to collect melon seeds discharged from the output pipe (11).

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