Olive fruit size grader

Abstract

The utility model discloses an olive fruit size grading screening machine belongs to agricultural product processing equipment technical field, including sieve bed, sieve box and by servo motor drive's screening mechanism, is equipped with buffer mechanism in sieve box, and buffer mechanism includes the cross board that can slide in the long chute and is by spring elastic support, and the piston rod is fixed on the cross board, and the sieve box inner wall is equipped with the piston cylinder that cooperates with piston rod through fixed short board, and the piston cylinder outer wall is equipped with exhaust groove. The utility model discloses through the air damping cooperation of spring energy absorption and piston cylinder exhaust formation, has realized the double flexible protection of the falling olive fruit, has effectively solved the technical problem of the easy knock damage of fruit in the prior art, has the beneficial effect of clever structure, good protection effect, can obviously promote the intact rate of fruit.

Description

Technical Field

[0001] This utility model relates to the field of agricultural product processing equipment technology, and in particular to an olive fruit size grading and screening machine. Background Technology

[0002] As an important economic crop, olives typically need to be graded according to size after harvest to meet different processing or sales needs. Mechanical vibration screening is a common technique for achieving this. It usually uses a vibrating screen to move olives on the screen mesh, and fruits smaller than the mesh size will pass through the screen and fall, thus achieving size separation. However, the skin of olives is quite delicate and is easily damaged by bumps during processing. In existing vibration screening equipment, there is a certain height difference when small fruits fall from the screen to the collection area below. When the fruits fall, they will directly collide with the bottom plate of the collection device or other fallen fruits. This impact force can easily cause damage to the skin or internal tissue of the olives. Damaged fruits not only greatly reduce their commercial value, but also affect the quality of subsequent oil extraction due to accelerated oxidation. Therefore, while existing screening equipment can achieve the grading function, it generally lacks an effective buffer protection mechanism for fallen fruits, making it difficult to meet the processing requirements of high-quality olives.

[0003] Therefore, this utility model proposes an olive fruit size grading and sorting machine to overcome the shortcomings of the existing technology. Utility Model Content

[0004] In view of the problem that existing olive fruit size grading and sorting machines lack an effective buffering mechanism during the sorting process, resulting in easy bumps and damage to the fruits when they fall, thus affecting product quality, this utility model aims to provide an olive fruit size grading and sorting machine with an improved structure that can effectively solve the above problems.

[0005] This utility model provides an olive fruit size grading and screening machine, including: a sieve bed, a sieve box, and a sieve mesh, a screening mechanism, and a buffer mechanism disposed in the sieve box.

[0006] The screening mechanism includes a servo motor and a transmission chain that transmits the rotation of the servo motor through a rotating plate, a pull rod, a fixed short column, and a U-shaped sliding plate to drive the screen box to slide back and forth along the guide slide.

[0007] Furthermore, the buffer mechanism includes a cross plate that can slide in an elongated groove on the inner wall of the sieve box. The cross plate is elastically supported by a spring located at the bottom of the elongated groove. A piston rod is fixed on the cross plate. A piston cylinder that cooperates with the piston rod is provided on the inner wall of the sieve box through a fixed short plate. An exhaust groove is provided on the outside of the piston cylinder. Through the combined action of the spring and the air damping inside the piston cylinder, the falling fruit is buffered.

[0008] Preferably, the servo motor is fixedly connected to the bottom left side of the screen bed.

[0009] Preferably, one end of the pull rod is rotatably connected to the rotating plate, and the other end is rotatably connected to the fixed short column.

[0010] Preferably, the fixing short column is fixed to the bottom left side of the U-shaped sliding plate.

[0011] Preferably, the U-shaped sliding plate is slidably sleeved outside the guide slide rod.

[0012] Preferably, the right side of the U-shaped slide plate is fixedly connected to the screen box.

[0013] Preferably, the piston rod is fixed to the front and rear sides of the top of the cross plate.

[0014] Preferably, the fixing short plate is fixed to the upper middle part of the inner wall of the elongated groove, and the number of piston cylinders corresponds to the number of piston rods.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model solves the problem of damage to olive fruits caused by direct collision when they fall during grading and screening in the prior art by setting a buffer mechanism in the sieve box, which consists of a cross plate, a spring, a piston rod, and a piston cylinder working together.

[0017] 2. This utility model solves the problem of unstable vibration or inconvenient adjustment in some screening machines in the prior art by using a transmission sprocket driven by a servo motor and consisting of a rotating plate, a pull rod and a U-shaped slide to drive the screen box to reciprocate. Attached Figure Description

[0018] Figure 1 This is a perspective view of the olive fruit size grading and sorting machine proposed in this utility model;

[0019] Figure 2 This is a side view of the olive fruit size grading and sorting machine proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the screening mechanism of the olive fruit size grading and screening machine proposed in this utility model;

[0021] Figure 4 This is a split diagram of the buffer mechanism of the olive fruit size grading and sorting machine proposed in this utility model.

[0022] Legend:

[0023] 1. Screening bed; 2. Screening mechanism; 201. Servo motor; 202. Rotating plate; 203. Tie rod; 204. Fixed short column; 205. U-shaped sliding plate; 206. Guide slide rod; 207. Screen mesh; 3. Buffer mechanism; 301. Cross plate; 302. Long slide groove; 303. Piston rod; 304. Fixed short plate; 305. Piston cylinder; 306. Exhaust groove; 307. Spring; 4. Screen box. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0025] Example:

[0026] Please refer to Figures 1 to 4 This utility model provides an olive fruit size grading and sorting machine, aiming to solve the problem in the prior art where olive fruits are easily damaged by impact during the grading and sorting process. Figure 1 and Figure 2 As shown, the device includes a sieve bed 1 and a sieve box 4 mounted on the sieve bed 1. The sieve bed 1 serves as the mounting base for the entire device. The sieve box 4 is used to hold olives and perform screening. A screening mechanism 2 that drives the sieve box 4 to reciprocate is fixedly connected to the sieve bed 1. The screening mechanism 2 includes a servo motor 201 fixedly connected to the bottom left side of the sieve bed 1. A rotating plate 202 is fixedly connected to the output end of the servo motor 201. One end of a pull rod 203 is rotatably connected to the rotating plate 202. The other end of the pull rod 203 is rotatably connected to a fixed short column 204. The fixed short column 204 is fixedly connected to the bottom left side of a U-shaped sliding plate 205. A guide slide rod 206 is fixedly connected to the top of the sieve bed 1. The U-shaped sliding plate 205 is slidably sleeved on the outside of the guide slide rod 206. The sieve box 4 is fixedly connected to the right side of the U-shaped sliding plate 205. A screen 207 is fixedly connected inside the sieve box 4.

[0027] The core of the technical solution in this embodiment is that the olive fruit size grading and sorting machine also includes a buffer mechanism 3, and the buffer mechanism 3 and the aforementioned sieve box 4 form a specific structural fit and connection relationship. Please refer to... Figure 3 and Figure 4The core structure is described in detail below. The buffer mechanism 3 includes an elongated chute 302 formed on the inner wall of the sieve box 4, and a cross plate 301 that can slide up and down within the elongated chute 302. A spring 307 is fixedly connected to the bottom of the inner wall of the elongated chute 302. The top of the spring 307 elastically abuts against the bottom of the cross plate 301 to provide initial buffering for the falling fruit. Piston rods 303 are fixedly connected to the front and rear sides of the top of the cross plate 301. A fixed short plate 304 is fixedly connected to the upper middle part of the inner wall of the elongated chute 302. A piston cylinder 305 is fixedly connected to the bottom of the fixed short plate 304. The number of piston cylinders 305 corresponds to the number of piston rods 303. An exhaust groove 306 is provided on the outer wall of the piston cylinder 305 to limit the air discharge speed. The function of the buffer mechanism 3 is to provide secondary buffer protection when the fruit falls from the sieve 207 to avoid damage caused by direct impact.

[0028] As a preferred embodiment, in order to achieve stable drive, the servo motor 201 is fixedly connected to the bottom left side of the screen bed 1. By installing it at the bottom, the overall center of gravity is lowered, which improves the stability of the equipment operation.

[0029] As another preferred embodiment, in order to ensure the effective transmission of power, the fixed short column 204 is fixed to the bottom left side of the U-shaped slide plate 205. This connection method allows the push and pull force applied by the pull rod 203 to act directly on the sliding direction of the U-shaped slide plate 205, reducing the generation of torque.

[0030] As another preferred embodiment, in order to optimize the transmission structure, the right side of the U-shaped slide plate 205 is fixedly connected to the screen box 4, so that the movement of the U-shaped slide plate 205 can directly and synchronously drive the screen box 4 to perform reciprocating screening motion.

[0031] As another preferred embodiment, in order to achieve dual-point buffering to improve stability, the piston rod 303 is fixed to the front and rear sides of the top of the cross plate 301, so that the cross plate 301 is subjected to more even force when moving up and down, and avoids tilting or jamming.

[0032] As another preferred embodiment, in order to precisely define the position of the piston cylinder 305, the fixing short plate 304 is fixed to the upper middle part of the inner wall of the elongated slide groove 302, ensuring that the piston rod 303 enters the piston cylinder 305 only in the latter half of the rebound of the cross plate 301, thus achieving phased buffering.

[0033] Working principle: First, the olives to be graded are poured into the sieve box 4. Then, the servo motor 201, fixed to the bottom left side of the sieve bed 1, is started. The output end of the servo motor 201 drives the rotating plate 202 to rotate. During the rotation of the rotating plate 202, the rotational motion is converted into a reciprocating push-pull linear motion by rotating the pull rod 203 connected to the rotating plate 202. The other end of the pull rod 203 is rotatably connected to the fixed short column 204, which is fixed to the bottom left side of the U-shaped slide plate 205. The U-shaped slide plate 205 itself is slidably sleeved on the guide slide rod 206 at the top of the sieve bed 1. Therefore, the reciprocating push-pull action of the pull rod 203 will drive the U-shaped slide plate 205 along the guide slide rod 206. The axial horizontal reciprocating sliding mechanism, with the right side of the U-shaped sliding plate 205 fixedly connected to the screen box 4, causes the screen box 4 to vibrate smoothly in a horizontal reciprocating motion. Utilizing vibration and inertia, the olives in the screen box 4 are fully dispersed and come into contact with the surface of the screen mesh 207. During this screening process, small olives with a diameter smaller than the mesh size of the screen mesh 207 pass through the mesh and fall to the bottom of the screen box 4, while larger olives remain on the surface of the screen mesh 207. They are eventually discharged as the screen box 4 tilts or at the end, thus achieving size grading of the olives. During the process of small olives falling through the screen mesh 207, they first come into contact with the buffer mechanism 3, which can slide within the elongated chute 302. At the top of the cross plate 301, the weight of the fruit itself and the impact force generated by its fall are applied to the cross plate 301, pushing the cross plate 301 to overcome the elastic force of the spring 307 and move downwards along the inner wall of the elongated slide 302. As the cross plate 301 moves downwards, the spring 307 located at the bottom of the elongated slide 302 is compressed synchronously. The elastic deformation of the spring 307 absorbs most of the impact energy, playing a first-level buffering role and preventing the fruit from directly colliding with the hard surface and causing damage. When the fruit has completely rolled away from the cross plate 301, the impact force acting on the cross plate 301 disappears, and the compressed spring 307 will quickly rebound with its stored elastic potential energy, pushing the cross plate 301 upwards along the elongated slide 302. During the upward sliding and rebounding process of the cross plate 301, the piston rods 303 fixed on the front and rear sides of the top will move upward synchronously. When the piston rods 303 move to the upper middle part of the inner wall of the elongated groove 302, the upper end of the piston rods 303 will be inserted into the piston cylinder 305 fixed by the fixed short plate 304, and begin to compress the air in the piston cylinder 305. Since the air is compressed and can only be slowly discharged from the exhaust groove 306 opened on the outer wall of the piston cylinder 305, air damping is formed in the piston cylinder 305. This damping force will further slow down the rebound speed of the cross plate 301, playing a second buffering role and effectively preventing the cross plate 301 from causing secondary impact on the subsequently falling fruit due to excessive rebound.

Claims

1. An olive fruit size grading and screening machine, comprising a sieve bed (1), a sieve box (4) disposed on the sieve bed (1), a sieve mesh (207) disposed in the sieve box (4), and a screening mechanism (2) for driving the sieve box (4) to move. Its features are, The screening mechanism (2) includes a servo motor (201) and a transmission chain that transmits the rotation of the servo motor (201) via a rotating plate (202), a pull rod (203), a fixed short column (204), and a U-shaped sliding plate (205) to drive the screen box (4) to slide back and forth along the guide slide rod (206). The screen box (4) is provided with a buffer mechanism (3), which includes a sliding groove (302) that can slide in the inner wall of the screen box (4). The cross plate (301) is elastically supported by a spring (307) located at the bottom of the elongated slide (302). A piston rod (303) is fixed on the cross plate (301). The inner wall of the sieve box (4) is provided with a piston cylinder (305) that cooperates with the piston rod (303) through a fixed short plate (304). An exhaust groove (306) is provided on the outer side of the piston cylinder (305) to form air damping when the cross plate (301) rebounds.

2. The olive fruit size grading and sorting machine according to claim 1, characterized in that, The servo motor (201) is fixedly connected to the bottom left side of the screen bed (1).

3. The olive fruit size grading and sorting machine according to claim 1, characterized in that, One end of the pull rod (203) is rotatably connected to the rotating plate (202), and the other end is rotatably connected to the fixed short column (204).

4. The olive fruit size grading and sorting machine according to claim 1, characterized in that, The fixed short column (204) is fixed to the bottom left side of the U-shaped sliding plate (205).

5. The olive fruit size grading and sorting machine according to claim 1, characterized in that, The U-shaped sliding plate (205) is slidably sleeved on the outside of the guide slide rod (206).

6. The olive fruit size grading and sorting machine according to claim 1, characterized in that, The right side of the U-shaped slide plate (205) is fixedly connected to the sieve box (4).

7. The olive fruit size grading and sorting machine according to claim 1, characterized in that, The piston rod (303) is fixed to the front and rear sides of the top of the cross plate (301).

8. The olive fruit size grading and screening machine according to claim 7, characterized in that, The fixed short plate (304) is fixed to the upper middle part of the inner wall of the elongated slide (302), and the number of piston cylinders (305) corresponds to the number of piston rods (303).

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