Automatic dehulling device for zucchini seeds

Abstract

The utility model relates to agricultural machinery technical field, concretely discloses a kind of automatic threshing device of zucchini seed, including rack, the rack is sequentially equipped with feeding mechanism, separating mechanism and collection mechanism along material flow direction;The feeding mechanism includes V-shaped feeding hopper, the rotating shaft of horizontal being equipped in the feeding hopper, spiral feeding blade of spiral being equipped in the outer wall of rotating shaft, the broken knife group of radial fixed connection on rotating shaft, the bottom of the feeding hopper is equipped with discharge port, the broken knife group is located above discharge port, a pair of extruding roller of opposite rotation is equipped in the discharge port;The separating mechanism includes the separating cylinder being communicated with the discharge port, and the separating cylinder one end is equipped with the impurity discharge port;Realized the full automation of zucchini seed threshing, greatly promote threshing efficiency, effectively reduce seed damage, improve seed purity and quality, and simple structure is easy to maintain, reduce use cost.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and specifically discloses an automatic threshing device for zucchini seeds. Background Technology

[0002] In agricultural production, obtaining zucchini seeds is a crucial step. Traditionally, zucchini seeds are obtained manually, by cutting open the zucchini and manually peeling off the seeds. This method is inefficient, labor-intensive, and costly. With the increasing scale of agriculture, the demand for zucchini seeds is constantly growing, and traditional methods can no longer meet production needs.

[0003] Currently, there are some devices on the market for threshing zucchini seeds, but these devices generally have some problems. For example, some devices cannot effectively separate the seeds from the pulp and impurities during the threshing process, resulting in low seed purity. Some devices have difficulty controlling the degree of crushing of zucchini, which can easily damage the seeds and affect their germination rate and quality. Other devices have complex structures, are inconvenient to operate, and have high maintenance costs, making them difficult to widely apply in actual production.

[0004] Therefore, developing an efficient, reliable, and automatic threshing device for zucchini seeds that can effectively separate seeds from impurities without damaging the seeds is of great practical significance. Utility Model Content

[0005] This utility model proposes an automatic threshing device for zucchini seeds. Through the three-stage linkage design of the feeding mechanism, the separation mechanism and the collection mechanism, it realizes the integrated functions of automated and efficient threshing of zucchini seeds, separation of pulp and residue, seed cleaning and wastewater collection. It has the beneficial effects of compact structure, continuous operation, thorough separation, clean cleaning and environmental protection and energy saving.

[0006] This utility model is implemented as follows: an automatic threshing device for zucchini seeds includes a frame, on which a feeding mechanism, a separating mechanism and a collecting mechanism are sequentially arranged along the material flow direction;

[0007] The feeding mechanism includes a V-shaped feeding hopper, a rotating shaft horizontally disposed in the feeding hopper, spiral feeding blades spirally disposed on the outer wall of the rotating shaft, and a set of crushing blades radially fixed to the rotating shaft. The bottom of the feeding hopper is provided with a discharge port, the set of crushing blades is located above the discharge port, and a pair of relatively rotating extrusion rollers are provided in the discharge port.

[0008] The separation mechanism includes a separation cylinder connected to the discharge port, a waste discharge port at one end of the separation cylinder, a number of sieve holes at the lower part of the separation cylinder wall, and a waste pushing auger inside the separation cylinder;

[0009] The collection mechanism includes a seed-holding trough with a V-shaped structure fixed to the bottom of the separating cylinder and a U-shaped water-collecting trough sleeved on the outside of the seed-holding trough, forming a closed water-collecting cavity between the seed-holding trough and the water-collecting trough; all the sieve holes are located above the opening of the seed-holding trough; a seed-pushing auger is provided inside the seed-holding trough, a seed discharge port is provided at one end of the seed-holding trough, a flushing pipe is provided at the top inside the seed-holding trough, and a nozzle is installed at the bottom of the flushing pipe; several seepage holes are opened at the bottom of the seed-holding trough, and all the seepage holes are located above the bottom area of ​​the water-collecting trough; a drain pipe is provided at the bottom of the water-collecting trough.

[0010] As a preferred embodiment of the automatic threshing device for zucchini seeds according to this utility model, the crushing blade group consists of multiple sets of blades equidistantly distributed along the circumference of the rotating shaft, and adjacent blades are staggered in the axial direction. The blades are used to cut zucchini in all directions to avoid incomplete crushing in some areas.

[0011] As a preferred embodiment of the automatic threshing device for zucchini seeds of this utility model, the surface of the extrusion roller is provided with interlaced raised patterns, and the gap between the two rollers is 5-8mm. The interlaced raised patterns are used to increase the friction between the extrusion roller and the material, thereby improving the seed threshing rate.

[0012] In a preferred embodiment of the automatic threshing device for zucchini seeds according to this utility model, the sieve holes are elongated arc-shaped holes, and the width of the sieve holes is greater than the maximum particle size of the zucchini seeds; the arc-shaped design of the sieve holes is used to prevent seeds from getting stuck.

[0013] As a preferred embodiment of the automatic threshing device for zucchini seeds of this utility model, two rinsing pipes are arranged parallel to each other along the length of the seed trough, and the nozzles are tilted towards the spiral surface of the seed pushing auger.

[0014] In a preferred embodiment of the automatic threshing device for zucchini seeds according to this utility model, the spiral direction of the auger pushing the waste is opposite to the spiral direction of the spiral feeding blades, and the pitch of the auger pushing the waste is greater than the pitch of the spiral feeding blades.

[0015] The beneficial effects of this utility model are:

[0016] 1. The continuous feeding, crushing and extrusion of the feeding mechanism, combined with the effective separation of the separation mechanism and the rapid collection of the collection mechanism, results in a high degree of automation and significantly improved work efficiency compared to manual threshing.

[0017] 2. The rational design of the crushing blade assembly and extrusion rollers effectively controls the force during crushing and extrusion, reducing damage to the seeds; the separation mechanism accurately screens the seeds through the reasonable setting of the screen hole size, reducing the mixing of impurities; the setting of the flushing pipe and nozzle further cleans the seeds, ensuring the purity and quality of the seeds; the overall device has a reasonable structural design, the functions of each component are clearly defined, and it adopts most of the common mechanical structures, such as spiral feeding blades, augers, rollers, etc., which are easy to maintain and repair in actual production, reducing the cost of use. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a side sectional view of the feeding mechanism, separating mechanism, and collecting mechanism of this utility model.

[0021] Figure 3 This is a schematic diagram of the separation cylinder and sieve holes of this utility model.

[0022] Figure 4 This is a schematic diagram of the extrusion roller and the interlaced convex pattern of this utility model.

[0023] The markings in the diagram are: 1. Frame; 2. Feed hopper; 3. Shaft; 4. Spiral feed blades; 5. Crusher assembly; 6. Discharge port; 7. Extrusion roller; 8. Separation cylinder; 9. Impurity discharge port; 10. Screen hole; 11. Impurity pushing auger; 12. Seed holding trough; 13. Water collection trough; 14. Water collection chamber; 15. Seed pushing auger; 16. Seed discharge port; 17. Flushing pipe; 18. Nozzle; 19. Seepage hole; 20. Drain pipe; 21. Blade; 22. Interlaced convex pattern. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0025] Please see Figure 1-4 An automatic threshing device for zucchini seeds includes a frame 1: a feeding mechanism, a separation mechanism and a collection mechanism are sequentially arranged on the frame 1 along the material flow direction;

[0026] The feeding mechanism includes a V-shaped feeding hopper 2, a rotating shaft 3 horizontally arranged inside the feeding hopper 2, a spiral feeding blade 4 spirally arranged on the outer wall of the rotating shaft 3, and a crushing blade assembly 5 radially fixed to the rotating shaft 3. The bottom of the feeding hopper 2 is provided with a discharge port 6, the crushing blade assembly 5 is located above the discharge port 6, and a pair of relatively rotating extrusion rollers 7 are provided inside the discharge port 6.

[0027] The separation mechanism includes a separation cylinder 8 connected to the discharge port 6, a discharge port 9 at one end of the separation cylinder 8, several screen holes 10 at the lower part of the wall of the separation cylinder 8, and a auger 11 for pushing impurities inside the separation cylinder 8.

[0028] The collection mechanism includes a seed-holding trough 12 with a V-shaped structure fixed to the bottom of the separating cylinder 8 and a U-shaped water-collecting trough 13 sleeved on the outside of the seed-holding trough 12, forming a closed water-collecting cavity 14 between the seed-holding trough 12 and the water-collecting trough 13; all sieve holes 10 are located above the opening of the seed-holding trough 12; a seed-pushing auger 15 is provided inside the seed-holding trough 12, a seed discharge port 16 is provided at one end of the seed-holding trough 12, a flushing pipe 17 is provided at the top inside the seed-holding trough 12, and a nozzle 18 is installed at the bottom of the flushing pipe 17; several seepage holes 19 are opened at the bottom of the seed-holding trough 12, and all seepage holes 19 are located above the bottom area of ​​the water-collecting trough 13; a drain pipe 20 is provided at the bottom of the water-collecting trough 13.

[0029] In this embodiment: when zucchini material is fed into the V-shaped feeding hopper 2, the rotating shaft 3, horizontally located inside the feeding hopper 2, begins to rotate, and the spiral feeding blades 4, spirally arranged on its outer wall, rotate accordingly. The spiral thrust pushes the zucchini along the length of the feeding hopper 2 towards the discharge port 6, achieving continuous material conveying. During the material's movement towards the discharge port 6, the crushing blade assembly 5, radially fixed to the rotating shaft 3, operates synchronously. This allows for all-around cutting and crushing of the zucchini, creating conditions for subsequent seed extraction and preventing seed residue due to incomplete crushing. After the material reaches the discharge port 6 at the bottom of the feeding hopper 2, a pair of relatively rotating extrusion rollers 7 begin to work. The staggered convex texture 22 on the surface of the extrusion rollers 7 increases the friction with the material. The 5-8mm gap between the two rollers ensures effective extrusion of the crushed material while avoiding damage to the seeds. The seeds in the pulp are squeezed out through the extrusion. The extruded mixture (containing seeds, crushed pulp, juice, etc.) enters the separation cylinder 8, which is connected to the discharge port 6. The auger 11 inside the separation cylinder 8 rotates with the rotating shaft 3, and its spiral direction is the same as that of the screw feeder. The blades 4 are opposite in shape and have a larger pitch, which can push and discharge large impurities (such as unbroken fruit peels, coarse fibers, etc.) in the cylinder towards the discharge port 9. At the same time, the long, arc-shaped sieve holes 10 opened at the lower part of the wall of the separating cylinder 8 allow all seeds (including the largest individuals) and juice to pass smoothly through the sieve holes into the seed holding tank 12. The seeds falling into the seed holding tank 12 will be cleaned by the flushing pipes 17 above the tank. Two flushing pipes 17 are arranged parallel to each other along the length of the seed holding tank 12, and the nozzles 18 installed at the bottom are inclined towards the spiral surface of the seed pushing auger 15. It can expand the rinsing range and use water flow to flush the pulp and impurities remaining on the seed surface toward the seed pushing auger 15, thereby improving the cleaning effect. The wastewater generated during the cleaning process flows into the U-shaped water collection tank 13 on the outside through the seepage hole 19 at the bottom of the seed holding tank 12. The water collection tank 13 and the seed holding tank 12 form a closed water collection cavity 14 to ensure that the wastewater will not overflow. Finally, the wastewater is discharged through the drain pipe 20 at the bottom of the water collection tank 13. The cleaned seeds are pushed out from the seed discharge port 16 at one end of the seed holding tank 12 by the seed pushing auger 15, completing the entire threshing process.

[0030] Support bracket 1 is used to support the feeding mechanism, the separating mechanism and the collecting mechanism.

[0031] As a technical optimization of this utility model, the crushing blade group 5 is composed of multiple sets of blades 21 that are equidistantly distributed along the circumference of the rotating shaft 3, and adjacent blades 21 are staggered in the axial direction. The blades 21 are used to cut zucchini in all directions to avoid incomplete crushing in some areas.

[0032] In this embodiment, the blade 21 makes more thorough and uniform contact with the material, avoiding incomplete crushing in certain areas, improving crushing efficiency and effect, laying a good foundation for subsequent extrusion and separation processes, and reducing problems such as seed residue or excessive impurities caused by uneven crushing.

[0033] As a technical optimization of this utility model, the surface of the extrusion roller 7 is provided with staggered raised texture 22, and the gap between the two rollers is 5-8mm. The staggered raised texture 22 is used to increase the friction between the extrusion roller 7 and the material, thereby improving the seed extraction rate.

[0034] In this embodiment, the staggered convex texture 22 increases the friction and extrusion area between the extrusion roller 7 and the material, which can more effectively squeeze out the seeds from the zucchini pulp and improve the seed extraction rate. The 5-8mm gap setting can ensure effective extrusion of the material, avoid damage to the seeds due to the gap being too small, and prevent excessively large impurities from entering the subsequent separation mechanism through the extrusion roller 7, thus ensuring separation efficiency.

[0035] As a technical optimization of this utility model, the sieve hole 10 is an elongated arc-shaped hole, and the width of the sieve hole 10 is greater than the maximum particle size of the zucchini seed; the arc-shaped design of the sieve hole 10 is used to avoid seed jamming.

[0036] In this embodiment, the design of the elongated arc-shaped hole increases the effective screening area of ​​the sieve hole 10 and improves the efficiency of seed screening; the sieve hole 10 ensures that all seeds (including the largest individual) can pass smoothly through the sieve hole into the seed trough 12, thereby achieving efficient separation of seeds from impurities.

[0037] As a technical optimization of this utility model, two flushing pipes 17 are arranged parallel to each other along the length of the seed trough 12, and the nozzles 18 are tilted towards the spiral surface of the seed pushing auger 15.

[0038] In this embodiment: the arrangement of two rinsing pipes 17 expands the rinsing range, enabling more comprehensive rinsing of the seeds in the seed trough 12; the nozzle 18 is tilted towards the spiral surface of the seed pushing auger 15, so that while rinsing the residual impurities on the seed surface, it can also push the impurities toward the seed pushing auger 15, making it easier for the impurities to be discharged with the auger, thus improving the cleaning effect and cleanliness of the seeds.

[0039] As a technical optimization of this utility model, the spiral direction of the auger 11 is opposite to that of the spiral feeding blade 4, and the pitch of the auger 11 is greater than that of the spiral feeding blade 4.

[0040] In this embodiment: the opposite spiral direction makes the direction in which the impurity pusher 11 pushes the impurities opposite to the direction in which the spiral feeder blade 4 pushes the material, thus avoiding the backflow of impurities and re-mixing with the material, ensuring the separation effect; the larger screw pitch accelerates the pushing speed of impurities, improves the efficiency of impurity discharge, prevents impurities from accumulating in the separation cylinder 8, and ensures the continuous and stable operation of the separation mechanism.

[0041] Working principle and usage process of this utility model:

[0042] Zucchini is placed into the V-shaped feeding hopper 2. The rotating shaft 3 drives the spiral feeding blades 4 to rotate, pushing the zucchini towards the discharge port 6. During this process, the crushing blade assembly 5 crushes the zucchini. After crushing, the zucchini reaches the discharge port 6 and is further squeezed by the extrusion rollers 7, which have interlaced raised textures 22 and gaps of 5-8mm, squeezing out the seeds and juice from the pulp. Then, it enters the separation mechanism. The squeezed material enters the separation cylinder 8. The sieve holes 10 ensure that all seeds (including the largest individual seeds) can pass through the sieve holes smoothly into the seed holding tank 12. Larger impurities remaining in the separation cylinder 8 are pushed away by the impurity pusher auger 11. The seeds are discharged into the discharge port 9. The spiral direction of the auger 11 is opposite to that of the spiral feeding blades 4 and the pitch is larger, which prevents impurities from mixing with the seeds and efficiently discharges them. The seeds that fall into the seed holding trough 12 are rinsed by the nozzles 18 on the two rinsing pipes 17 that are parallel to the length of the seed holding trough 12 and are inclined towards the spiral surface of the auger 15, so as to remove residual impurities on the seed surface. The rinsed water and some of the water carried by the seeds flow into the water collection trough 13 through the seepage holes 19 at the bottom of the seed holding trough 12, and finally discharged through the drain pipe 20 at the bottom of the water collection trough 13. The rinsed seeds are collected from the discharge port 16 at one end of the seed holding trough 12.

[0043] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] However, the above are merely specific embodiments of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. An automatic threshing device for zucchini seeds, comprising a frame (1), characterized in that: The frame (1) is provided with a feeding mechanism, a separation mechanism and a collection mechanism in sequence along the material flow direction; The feeding mechanism includes a V-shaped feeding hopper (2), a rotating shaft (3) horizontally disposed in the feeding hopper (2), a spiral feeding blade (4) spirally disposed on the outer wall of the rotating shaft (3), and a crushing blade assembly (5) radially fixed to the rotating shaft (3). The bottom of the feeding hopper (2) is provided with a discharge port (6), and the crushing blade assembly (5) is located above the discharge port (6). A pair of relatively rotating extrusion rollers (7) are provided in the discharge port (6). The separation mechanism includes a separation cylinder (8) connected to the discharge port (6), a waste discharge port (9) is provided at one end of the separation cylinder (8), a number of sieve holes (10) are opened at the lower part of the wall of the separation cylinder (8), and a waste pushing auger (11) is provided inside the separation cylinder (8). The collection mechanism includes a seed holding trough (12) with a V-shaped structure fixed to the bottom of the separation cylinder (8) and a U-shaped water collection trough (13) sleeved on the outside of the seed holding trough (12). A closed water collection cavity (14) is formed between the seed holding trough (12) and the water collection trough (13). All the sieve holes (10) are located above the opening of the seed holding trough (12). A seed pushing auger (15) is provided inside the seed holding trough (12). A seed discharge port (16) is provided at one end of the seed holding trough (12). A flushing pipe (17) is provided above the inside of the seed holding trough (12). A nozzle (18) is installed at the bottom of the flushing pipe (17). Several seepage holes (19) are opened at the bottom of the seed holding trough (12), and all the seepage holes (19) are located above the bottom area of ​​the water collection trough (13). A drain pipe (20) is provided at the bottom of the water collection trough (13).

2. The automatic threshing device for zucchini seeds according to claim 1, characterized in that: The crushing blade assembly (5) consists of multiple sets of blades (21) equidistantly distributed along the circumference of the rotating shaft (3), and adjacent blades (21) are staggered in the axial direction. The blades (21) are used to cut zucchini in all directions to avoid incomplete local crushing.

3. The automatic threshing device for zucchini seeds according to claim 1, characterized in that: The surface of the extrusion roller (7) is provided with interlaced raised textures (22), and the gap between the two rollers is 5-8mm. The interlaced raised textures (22) are used to increase the friction between the extrusion roller (7) and the material, thereby improving the seed extraction rate.

4. The automatic threshing device for zucchini seeds according to claim 1, characterized in that: The sieve hole (10) is an elongated arc-shaped hole, and the width of the sieve hole (10) is greater than the maximum particle size of the zucchini seed; the arc-shaped design of the sieve hole (10) is used to avoid seed jamming.

5. The automatic threshing device for zucchini seeds according to claim 1, characterized in that: Two flushing pipes (17) are arranged parallel to each other along the length of the seed trough (12), and the nozzle (18) is tilted towards the spiral surface of the seed pushing auger (15).

6. The automatic threshing device for zucchini seeds according to claim 1, characterized in that: The spiral direction of the pusher auger (11) is opposite to that of the spiral feed blade (4), and the pitch of the pusher auger (11) is greater than that of the spiral feed blade (4).

Images