Classification screening device for Chinese chestnut processing
By designing a screening device with multi-stage screening boxes and a vibrating motor, the problem of incomplete chestnut screening was solved, achieving rapid and thorough size-based screening and improving screening efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-03-20
AI Technical Summary
Existing chestnut sorting devices cannot quickly sort chestnuts of different sizes, and local accumulation is prone to occur during the sorting process, resulting in incomplete sorting.
A screening mechanism including a first, second, and third screening box was designed. By swinging left and right of the screening mechanism and vibrating the vibrating motor, combined with the angle flipping of the adjustment mechanism, the chestnuts are rolled and screened. They are then graded by size through screen holes of different diameters. Finally, the chestnuts are controlled to slide down by a baffle and a hydraulic rod.
It enables rapid and thorough grading and screening of chestnuts by size, avoiding the problem of accumulation during the screening process and improving screening efficiency and quality.
Smart Images

Figure CN224010381U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to chestnut processing technical field, specifically is a kind of grading screening device for chestnut processing. BACKGROUND
[0002] Chestnut is praised as "the king of autumn fruits", is the seasonal food of autumn, with rich nutritional value and multiple health benefits, chestnut products on market mainly have sugar-fried chestnut, canned chestnut in sugar water, quick-frozen chestnut kernel, chestnut dried products etc., need to screen different size chestnut when producing chestnut products, screening step in chestnut processing process, can directly affect the quality of final product and market competitiveness, currently common chestnut screening device on market, cannot quickly complete the screening of different size chestnut, and chestnut is prone to partial accumulation too much chestnut in screening process, lead to screening not thoroughly, for this, the present application proposes a kind of grading screening device for chestnut processing. SUMMARY
[0003] To solve the problems presented in the above background art, the utility model provides the following technical scheme: a kind of grading screening device for chestnut processing, including bottom plate, the both sides of the top of bottom plate are fixedly installed with support frame, swingable screening mechanism is arranged between two support frames, screening mechanism includes first screening box, second screening box and third screening box, first screening box, second screening box and third screening box are stacked in turn from top to bottom, the both ends between the both sides of first screening box, second screening box and third screening box are fixedly installed with link plate, the bottom of first screening box is evenly provided with a plurality of first screen holes, a plurality of second screen holes are evenly provided in the bottom of second screening box, two adjusting mechanisms are arranged between the top of bottom plate and the bottom of screening mechanism, the diameter of first screen hole is greater than the diameter of second screen hole.
[0004] Preferably, the center of the two sides of the second screening box in the screening mechanism is fixedly installed with a rotating shaft, the side surface of the top end of the two support frames is provided with a through opening, a bearing is fixedly installed in the two through openings, the two rotating shafts are respectively fixedly inserted between the inner ring wall of the two bearings, a reinforcing plate fixedly connected with the top of the bottom plate is arranged on the both sides of the top end of each support frame.
[0005] Preferably, the right end of the first screening box, the second screening box and the third screening box in the screening mechanism is provided as an opening, a liftable baffle is arranged at the opening of the right end of the first screening box, the second screening box and the third screening box.
[0006] Preferably, the right end of the first screening box, the second screening box and the third screening box is fixedly installed with a discharging plate, a vibration motor is fixedly installed at the left end of the first screening box, the second screening box and the third screening box.
[0007] Preferably, the two ends of each baffle are fixedly installed with a connecting block, the three connecting blocks on the same side are fixedly installed with a connecting rod, the side walls of the two connecting plates on the right side are fixedly installed with a first hydraulic rod, and the output ends of the two first hydraulic rods are fixedly connected with the corresponding connecting rods.
[0008] Preferably, the right ends of the first screening box, the second screening box and the third screening box are fixedly installed with a limiting strip on both sides, and the two ends of the inner sides of the three baffles are provided with limiting grooves matched with the limiting strips in shape, and the limiting grooves on the inner sides of the three baffles are slidably installed on the two limiting strips at the corresponding openings.
[0009] Preferably, the adjusting mechanism comprises a first fixing member, a second fixing member and a second hydraulic rod, the first fixing member is fixedly installed on the bottom plate, the second fixing member is fixedly installed at the bottom of the screening mechanism, and the two ends of the second hydraulic rod are rotatably connected to the first fixing member and the second fixing member.
[0010] Compared with the prior art, the utility model has the advantages that:
[0011] Through the left and right swing of the screening mechanism, the chestnut can roll back and forth in the screening mechanism, and in the rolling process, the screening of chestnuts of different sizes can be completed through the first screening box bottom first screen hole and the second screening box bottom second screen hole, after the screening of the chestnut is completed, the right end of the screening mechanism is inclined downward by controlling the two adjusting mechanisms on the bottom plate, then the first hydraulic rod pushes the three baffles to move up at the same time, so that the chestnuts in the first screening box, the second screening box and the third screening box will slide out from the three discharge plates along the inclination angle thereof. BRIEF DESCRIPTION OF DRAWINGS
[0012] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model.
[0013] Figure 1 It is the whole structure schematic view of the utility model;
[0014] Figure 2 It is the whole side structure schematic view of the utility model;
[0015] Figure 3 It is the bottom plate and the screening mechanism connection structure schematic view of the utility model;
[0016] Figure 4 It is the screening mechanism structure schematic view of the utility model;
[0017] Figure 5 It is the first screening box and the baffle connection structure schematic view of the utility model;
[0018] Figure 6 The enlarged structure schematic view of the utility model A place is shown in the figure;
[0019] In the figure: 1, bottom plate; 2, support frame; 3, screening mechanism; 31, first screening box; 32, second screening box; 33, third screening box; 34, adapter plate; 4, rotating shaft; 5, vibration motor; 6, adjusting mechanism; 7, blanking plate; 8, baffle; 9, adapter block; 10, adapter rod; 11, fixed block; 12, hydraulic rod; 13, limiting strip; 14, limiting groove. DETAILED DESCRIPTION
[0020] The technical scheme in the embodiments of the utility model will be described below in connection with the drawings in the embodiments of the utility model, apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.
[0021] By Figures 1-6 The utility model discloses a bottom plate 1, the top of bottom plate 1 both sides are fixedly installed with support frame 2, be provided with the screening mechanism 3 of swingable between two support frames 2, screening mechanism 3 includes first screening box 31, second screening box 32 and third screening box 33, first screening box 31, second screening box 32 and third screening box 33 are sequentially stacked from top to bottom, are fixedly installed with adapter plate 34 between two ends of the both sides of first screening box 31, second screening box 32 and third screening box 33, the bottom of first screening box 31 is evenly provided with a plurality of primary sieve holes, a plurality of secondary sieve holes are evenly provided with in the bottom of second screening box 32, two adjusting mechanisms 6 are set up between the top of bottom plate 1 and the bottom of screening mechanism 3, the diameter of primary sieve hole is greater than the diameter of secondary sieve hole.
[0022] As Figure 1 And Figure 2 As shown in screening mechanism 3, the center of the both sides of second screening box 32 is fixedly installed with rotating shaft 4, the side of the top of two support frames 2 is provided with through opening, two bearings are fixedly installed in two through openings, two rotating shafts 4 are fixedly inserted between the inner ring wall of two bearings, the reinforcing plate fixedly connected with the top of bottom plate 1 is provided with on the both sides of the top of each support frame 2, screening mechanism 3 can be supported by support frame 2, so that screening mechanism 3 can rotate with the both sides rotating shaft 4 as the center under the extension and contraction of two adjusting mechanisms 6, through the repeated swing of screening mechanism 3, can let chestnut in the first screening box 31 and second screening box 32 of screening mechanism 3 roll back and forth, so that the screening of chestnut of different sizes can be completed through primary sieve hole and secondary sieve hole.
[0023] As shown in Figure 1 and Figure 4 , the right end of the first screening box 31, the second screening box 32 and the third screening box 33 in the screening mechanism 3 is provided as an opening, and a liftable baffle 8 is arranged at the opening of the right end of the first screening box 31, the second screening box 32 and the third screening box 33. When the baffle 8 is lifted, the chestnuts screened in the first screening box 31, the second screening box 32 and the third screening box 33 can be discharged from the corresponding discharge plate 7.
[0024] As shown in Figure 2 and Figure 3 , the right end of the first screening box 31, the second screening box 32 and the third screening box 33 is fixedly installed with a discharge plate 7, and the left end of the first screening box 31, the second screening box 32 and the third screening box 33 is fixedly installed with a vibration motor 5. Through the vibration generated by the vibration motor 5, the screening efficiency of the chestnuts in the screening mechanism 3 can be improved.
[0025] As shown in Figure 1 and Figure 3 , the two ends of each baffle 8 are fixedly installed with an adapter block 9, and an adapter rod 10 is fixedly installed between the three adapter blocks 9 on the same side. The sidewall of the right two adapter plates 34 is fixedly installed with a first hydraulic rod 12, and a fixed block 11 is fixedly connected between the output end of the two first hydraulic rods 12 and the corresponding adapter rod 10. By controlling the first hydraulic rod 12 to push the fixed block 11, the adapter rod 10 and the three adapter blocks 9 can simultaneously drive the baffle 8 to move upward, thereby opening the opening at the right end of the first screening box 31, the second screening box 32 and the third screening box 33.
[0026] As shown in Figure 5 and Figure 6 , the right end of the first screening box 31, the second screening box 32 and the third screening box 33 is fixedly installed with a limiting strip 13, and the two ends of the inner side of the three baffles 8 are provided with a limiting groove 14 matched with the shape of the limiting strip 13. The limiting groove 14 on the inner side of the three baffles 8 is respectively slidably installed on the two limiting strips 13 at the corresponding opening. Through the sliding cooperation of the limiting strip 13 and the limiting groove 14, the baffle 8 can stably move up and down at the opening of the right end of the first screening box 31, the second screening box 32 and the third screening box 33.
[0027] As shown in Figure 2 and Figure 3As shown, the adjustment mechanism 6 includes a first fixing member, a second fixing member, and a second hydraulic rod. The first fixing member is fixedly installed on the base plate 1, and the second fixing member is fixedly installed on the bottom of the screening mechanism 3. The two ends of the second hydraulic rod are rotatably connected to the first fixing member and the second fixing member, respectively. By extending and retracting the two adjustment mechanisms 6, the screening mechanism 3 can be driven to rotate between the two support frames 2, thereby allowing the chestnuts in the screening mechanism 3 to roll back and forth.
[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A grading and screening device for chestnut processing, comprising a base plate (1), characterized in that: Support frames (2) are fixedly installed on both sides of the top of the base plate (1). A swingable screening mechanism (3) is provided between the two support frames (2). The screening mechanism (3) includes a first screening box (31), a second screening box (32), and a third screening box (33). The first screening box (31), the second screening box (32), and the third screening box (33) are stacked from top to bottom. A connecting plate (34) is fixedly installed between the two ends of the first screening box (31), the second screening box (32), and the third screening box (33). Several primary screening holes are evenly opened at the bottom of the first screening box (31), and several secondary screening holes are evenly opened at the bottom of the second screening box (32). Two adjustment mechanisms (6) are provided between the top of the base plate (1) and the bottom of the screening mechanism (3). The diameter of the primary screening hole is larger than the diameter of the secondary screening hole.
2. The grading and screening device for chestnut processing according to claim 1, characterized in that: In the screening mechanism (3), a rotating shaft (4) is fixedly installed at the center of both sides of the second screening box (32). The two support frames (2) have openings on their top sides. Bearings are fixedly installed in the two openings. The two rotating shafts (4) are fixedly inserted between the inner ring walls of the two bearings. A reinforcing plate is fixedly connected to the top of the base plate (1) on both sides of the top of each support frame (2).
3. The grading and screening device for chestnut processing according to claim 1, characterized in that: The right ends of the first screening box (31), the second screening box (32) and the third screening box (33) in the screening mechanism (3) are all set to be open, and a liftable baffle (8) is provided at the openings on the right ends of the first screening box (31), the second screening box (32) and the third screening box (33).
4. The grading and screening device for chestnut processing according to claim 3, characterized in that: A feeding plate (7) is fixedly installed on the right end of the first screening box (31), the second screening box (32) and the third screening box (33), and a vibration motor (5) is fixedly installed on the left end of the first screening box (31), the second screening box (32) and the third screening box (33).
5. A grading and screening device for chestnut processing according to claim 3, characterized in that: Each of the baffles (8) has a connecting block (9) fixedly installed at both ends. A connecting rod (10) is fixedly installed between the three connecting blocks (9) on the same side. The two connecting plates (34) on the right side have a first hydraulic rod (12) fixedly installed on their side walls. A fixing block (11) is fixedly connected between the output end of the two first hydraulic rods (12) and the corresponding connecting rod (10).
6. A grading and screening device for chestnut processing according to claim 3, characterized in that: Limiting strips (13) are fixedly installed on both sides of the opening at the right end of the first screening box (31), the second screening box (32) and the third screening box (33). Limiting grooves (14) that are adapted to the shape of the limiting strips (13) are opened at both ends of the inner side of the three baffles (8). The limiting grooves (14) on the inner side of the three baffles (8) are respectively slidably installed on the two limiting strips (13) at the corresponding openings.
7. A grading and screening device for chestnut processing according to claim 1, characterized in that: The adjustment mechanism (6) includes a first fixing member, a second fixing member, and a second hydraulic rod. The first fixing member is fixedly installed on the base plate (1), the second fixing member is fixedly installed on the bottom of the screening mechanism (3), and the two ends of the second hydraulic rod are rotatably connected to the first fixing member and the second fixing member, respectively.