CN216631630U - Automatic grading mechanism for red dates - Google Patents

Abstract

The utility model provides an automatic grading mechanism for red dates, which comprises a feeding hopper, a vibrating transport table, a roughing mechanism and a selecting mechanism; the roughing mechanism includes a plurality of blanking belts and blanking belts that drive the movement of the blanking belts. Belt drive mechanism; there is a blanking gap between two adjacent blanking belts, and the jujubes to be collected fall at the blanking gap; the selection mechanism includes a floor material frame, and the floor material frame has A funnel-shaped material guide surface, and the bottom of the material guide surface is connected with a screen material belt located in the floor material frame, the screen material belt is arranged obliquely, and reciprocates from bottom to top, the screen material belt A plurality of parallel jujube rails and jujube rails are fixed on the belt surface of the belt. The utility model can divide the jujube into three categories: large, medium and small, and occupies a small space. The selection mechanism adopts an inclined screen belt, and adopts the reciprocating motion from bottom to top, which greatly reduces the space occupied by the selection mechanism.

Description

An automatic grading mechanism for red dates

technical field

The utility model relates to the technical field of jujube grading, in particular to an automatic grading mechanism for jujubes.

Background technique

Jujube screening equipment is used for centralized classification and screening of jujubes after picking. After picking, the jujubes are piled up in warehouses or sunbathing dams. Due to the different sizes of dates, market prices vary greatly. Therefore, screening equipment is needed to screen jujubes quickly and efficiently.

There are roughly two methods for grading red dates. One is to rely on manual grading, which is easily affected by human subjective factors, resulting in large errors in grading and low efficiency. It will also increase the direct contact opportunities between workers and red dates, affecting food. health and safety. Automatic grading is divided into mechanical grading and photoelectric grading, based on machine vision grading and other three. Mechanical grading is mostly designed according to the external dimensions of red dates, and uses different gaps of mechanical mechanisms, such as drum type, roller type or sieve type, etc. The grading level is relatively simple, and it is easy to cause damage during the grading process. The photoelectric type uses the time that the red dates pass through the photoelectric sensor to judge the width of the dates, so as to classify them. This classification device has relatively high requirements on the external environment and poor efficiency. The third is to use machine vision to collect jujube information for grading.

For the pursuit of higher added value, more refined screening methods are required.

The existing mechanical classification generally has the following shortcomings:

The equipment can only classify jujubes into two categories. If you want to carry out more than two types of screening, you need to connect conveyor belts in series, which takes up a lot of space, and after the upper level is passed to the next level, the jujubes are unevenly distributed on the lower level conveyor belt, resulting in low screening efficiency.

The conveying adopts chain drive, the transmission speed is limited, and the production process is noisy.

The classification speed is slow, and the structure of the actuator is complex.

When the jujube is shoveled, all kinds of impurities are sent to the screening equipment together, and the equipment does not have a separate impurity removal design, which will increase the workload of the packaging process of the finished product.

During the screening process, the jujube has overlapping phenomenon. In order to ensure sufficient blanking, it is necessary to ensure that the conveyor belt has a long length.

Utility model content

According to the above technical problems, it is provided.

The technical means adopted by the utility model are as follows:

An automatic grading mechanism for red dates, including a feeding hopper, a vibrating transport table, a roughing mechanism and a selecting mechanism;

The bottom outlet of the feeding hopper is connected with the feeding end of the vibrating conveying table, the discharging end of the vibrating conveying table is connected with one end of the roughing mechanism, and the other end of the roughing mechanism is connected with the selecting mechanism:

The vibrating transport table is used for vibrating and transporting red dates;

The roughing mechanism includes a plurality of blanking belts and a blanking belt driving mechanism that drives the movement of the blanking belts; there is a blanking gap between two adjacent blanking belts, and the jujubes to be collected fall at the blanking gap, and the blanking There is an inclined guide plate below the belt, and the bottom of the guide plate is connected with the entrance of the finished jujube box;

The selection mechanism includes a floor material frame, the entrance of the floor material frame is connected with the rough selection mechanism, the floor material frame is provided with a funnel-shaped material guide surface, and the bottom of the material guide surface is connected with a screen material belt located in the floor material frame, The screening belt is inclined and moves back and forth from bottom to top. A plurality of parallel jujube rails are fixed on the belt surface of the screening belt, and the middle jujube rails are inclined and arranged. finished box;

A plurality of parallel jujube rails are fixed on the belt surface of the screening belt, and the jujube rails are located between the two middle jujube rails. One side of the lower end of the jujube track has a finished jujube box;

There are baffle plates on both sides of the screening belt respectively, and the baffle plates are higher than the finished jujube box and the finished jujube box;

The width of the medium jujube track matches the size of the medium jujube to be collected;

The width of the jujube track matches the size of the jujube to be collected, and the bottom of the jujube track has an elongated drop hole.

Preferably, an anti-overlap baffle plate is installed at the lower end of the jujube track, the height of the anti-overlap baffle plate is matched with the height of the jujubes to be collected, and the outer side of the anti-overlap baffle plate has a guide plate.

Preferably, the middle date track includes a track body and a mounting end, the mounting end is fixedly connected with the screening belt, and a blocking block parallel to the track body is installed on the mounting end, and the distance between the blocking block and the track body is the same as that of the material to be collected. Dates to match the size.

Preferably, the vibrating transport table is provided with a screen on the side close to its discharge end, and an impurity box is placed at the bottom of the screen.

Preferably, a vibrator is installed on the feed hopper.

In the working state: the red dates enter through the feeding hopper, and the vibrator vibrates during the feeding hopper. The vibrator can avoid the jamming of the red dates, and at the same time, it can achieve uniform feeding and adjust the feeding speed, and then the red dates fall into the vibration. The transport table and the vibrating transport table can be inclined or flat, and then a vibrating mechanism is added at the bottom to achieve full tiling and even feeding of the red dates. The red dates will pass through the screen during transportation on the vibrating transport table, and impurities and dust will fall off. It falls into the impurity box under the screen, and then the red dates pass through the blanking belt, and the small jujubes will fall into the finished small jujube box at the gap between the two adjacent blanking belts; Entering the ground fabric frame, the jujube track and the jujube track on the screen belt will shovel the jujube like a shovel, because the size design of the middle jujube track and the design of the material block prevent the jujube from being in the middle jujube track. After stopping, it will fall back into the ground fabric frame, and the jujube will rise under the driving of the jujube track, until it falls into the finished jujube box after it is higher than the baffle plate, because the elongated drop hole of the jujube track and the anti-corrosion The setting of the overlapping baffle plate makes the middle jujube fall to the ground fabric frame at the long drop hole, and the overlapping jujube is blocked by the anti-overlapping baffle plate from falling to the ground fabric frame, and the jujube is in the jujube frame. Driven by the track, it rises until it is higher than the baffle and falls into the finished jujube box.

Compared with the prior art, the utility model has the following advantages:

1. The utility model can divide the jujube into three categories: large, medium and small, and occupy a small space.

2. The belt drive is adopted, the transmission sound is small, and the transmission speed is easy to adjust.

3. The grading speed is fast, the equipment is less, and the floor space is reduced.

4. The impurities are screened before the jujube is classified, and the impurities and dust are removed through the screen and the vibrating transport table, which saves time and reduces the difficulty for the subsequent cleaning and packaging processes. To achieve centralized collection of impurities.

5. The use of vibrating conveying platform can realize the even tiling of jujubes and shorten the length of the conveyor belt.

6. There is a vibrator on the feeding hopper, which can realize uniform feeding and control the feeding speed.

7. The selection mechanism adopts the inclined screen belt, and adopts the reciprocating motion from bottom to top, which greatly reduces the space occupation of the selection mechanism.

Based on the above reasons, the utility model can be widely promoted in the fields of jujube screening and the like.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative work.

1 is a schematic structural diagram of an automatic grading mechanism for red dates in a specific embodiment of the present invention.

2 is a front view of an automatic grading mechanism for red dates in a specific embodiment of the present invention.

3 is a top view of an automatic grading mechanism for red dates in a specific embodiment of the present invention.

FIG. 4 is a schematic structural diagram of a selection mechanism in a specific embodiment of the present invention.

FIG. 5 is a schematic diagram of the structure of the Zhongzao track in the specific embodiment of the present invention.

FIG. 6 is a schematic diagram of the track structure of jujube in a specific embodiment of the present invention.

FIG. 7 is a schematic structural diagram of a roughing mechanism in a specific embodiment of the present invention.

In the picture: 1. Feeding hopper; 2. Vibrator; 3. Vibrating transport table; 4. Screen; 5. Impurity box; 6. Material guide plate; 7. Jujube finished product box; 8. Blanking belt; 9 , screening belt; 10, finished jujube box; 11, finished jujube box; 12, floor fabric frame; 13, baffle; 14, belt; 15, drive motor; 16, middle jujube track; 17, jujube track ; 18, drop hole; 19, anti-overlap baffle plate; 20, guide plate; 21, stop material block.

Detailed ways

It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict. The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in Embodiment 0 of the present utility model will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present utility model. The described embodiments are only some, but not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application or uses in any way. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that the terminology used herein is for describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise. Meanwhile, it should be understood that, for convenience of description, the dimensions of various parts shown in the accompanying drawings are not drawn in an actual proportional relationship. Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the authorized specification. In all examples shown and discussed herein, any specific values should be construed as illustrative only and not limiting. Accordingly, other examples of exemplary embodiments may have different values. It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further discussion in subsequent figures.

In the description of the present invention, it should be understood that orientation words such as "front, rear, top, bottom, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" etc. The orientation or positional relationship is usually based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and these orientations do not indicate and imply the indicated device unless otherwise stated. Or elements must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be construed as a limitation on the protection scope of the present invention: the orientation words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

For ease of description, spatially relative terms, such as "on", "over", "on the surface", "above", etc., may be used herein to describe what is shown in the figures. The spatial positional relationship of one device or feature shown to other devices or features. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or features would then be oriented "below" or "over" the other devices or features under its device or structure". Thus, the exemplary term "above" can encompass both an orientation of "above" and "below." The device may also be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood To limit the scope of protection of the present invention.

As shown in Figures 1 to 7, an automatic grading mechanism for red dates includes a feeding hopper 1, a vibrating transport table 3, a roughing mechanism and a selection mechanism;

The bottom outlet of the feeding hopper 1 is connected to the feeding end of the vibrating transport table 3 , and a vibrator 2 is installed on the feeding hopper 1 . The discharge end of the vibration transport table 3 is connected with one end of the roughing mechanism, and the other end of the roughing mechanism is connected with the selection mechanism:

The vibrating transport table 3 is used for vibrating and transporting red dates; the vibrating transport table 3 has a screen 4 on the side close to its discharge end, and an impurity box 5 is placed at the bottom of the screen 4 . The vibrating transport table 3 adopts a plane or an inclined plane, and has a vibrator in it, which realizes the movement of the red dates through vibration, and the impurities fall upside down during the movement.

The roughing mechanism includes a plurality of blanking belts 8 and a blanking belt driving mechanism that drives the movement of the blanking belts 8; there is a blanking gap between two adjacent blanking belts 8, and the jujubes to be collected fall at the blanking gap. And the bottom of the blanking belt 8 is provided with an inclined guide plate 6, and the bottom of the guide plate 6 is connected with the inlet of the jujube finished product box 7; the blanking belt drive mechanism includes a driving motor 15, a driving shaft and three driven shafts , the driving shaft and the three driven shafts are arranged in a rectangular shape, a plurality of blanking belts are wound on the driving shaft and the three driven shafts in a closed-loop manner, and the output end of the driving motor 15 is connected with the driving shaft through the belt 14 . The width of the blanking belt 8 is smaller than the size of the jujubes to be collected.

The selection mechanism includes a floor material frame 12, the entrance of the floor material frame 12 is connected with the rough selection mechanism, the floor material frame 12 has a funnel-shaped material guide surface, and the bottom of the material guide surface is connected to the floor material frame 12. The screen belt 9 is set obliquely and reciprocates from bottom to top. The movement of the screen belt 9 can be driven by a motor; the belt surface of the screen belt 9 is fixed with a plurality of parallel jujube rails 16. And the middle jujube track 16 is inclined and arranged, and the side close to the lower end of the middle jujube track 16 has a middle jujube finished product box 11;

A plurality of jujube rails 17 arranged in parallel are fixed on the belt surface of the screening belt 9, and the jujube rails 17 are located between the two middle jujube rails 16, and the jujube rails 17 are arranged obliquely. The direction of inclination is opposite, and the side close to the lower end of the jujube track 17 has a finished jujube box 10;

The two sides of the screening belt 9 are respectively provided with baffles 13, and the baffles 13 are higher than the finished jujube box 10 and the finished jujube box 11;

The width of the medium jujube track 16 matches the size of the medium jujube to be collected;

The width of the jujube track 17 matches the size of the jujube to be collected, and the bottom of the jujube track 17 has an elongated drop hole 18 .

An anti-overlap baffle plate 19 is installed on the lower end of the jujube track 17 , the height of the anti-overlap baffle plate 19 matches the height of the jujubes to be collected, and the outer side of the anti-overlapping baffle plate 19 has a guide plate 20 . The design of the guide plate 20 can make the dates that do not meet the size requirements quickly fall into the floor material frame 12 and enter the material selection cycle again.

The middle date track 16 includes a track body and a mounting end, the mounting end is fixedly connected with the screening belt, and a blocking block 21 parallel to the track body is installed on the mounting end. Dates to match the size. The blocking block 21 can prevent the jujube from passing through, and at the same time can prevent the jujube from being stacked.

In the working state: the red dates enter through the feeding hopper 1, and the vibrator 2 vibrates during the feeding hopper 1. The vibrator 2 can avoid the jamming of the red dates, and at the same time, it can achieve uniform feeding and adjust the feeding speed. The red dates fall into the vibrating transport table 3 and pass through the screen 4. The impurities and dirt will fall into the impurity box 5 under the screen 4. After that, the red dates pass through the blanking belt 8, and the small jujubes will be in the adjacent two The gap between the blanking belts 8 falls into the finished small jujube box 7; after that, the middle jujube and the jujube enter the ground material frame 12, and the middle jujube track 16 and the jujube track 17 on the screening belt 9 will be like a shovel The jujube is shoveled up in the same way, because the size design of the middle jujube track 16 and the design of the stopper block 21 prevent the jujube from staying in the middle jujube track 16, and will fall back into the ground fabric frame 12, and the middle jujube is on the middle jujube track. Driven by 16, it rises until it is higher than the baffle plate 13 and then falls into the finished product box 11 of Chinese jujube. The jujube is dropped into the floor material frame 12 at the elongated drop hole 18 , the overlapping jujube is blocked by the anti-overlap baffle 19 and falls into the floor material frame 12 , and the jujube is driven by the jujube track 17 . It rises until it is higher than the baffle plate 13 and then falls into the finished jujube box 10 .

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that : it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the various embodiments of the present utility model Scope of technical solutions.

Claims (6)

1. An automatic red date grading mechanism is characterized by comprising a feed hopper, a vibration conveying table, a roughing mechanism and a fine selecting mechanism;

the bottom exit of feeder hopper with the feed end of vibration transport table is connected, the discharge end of vibration transport table with the one end of roughing mechanism is connected, the other end of roughing mechanism with choice mechanism connects:

the vibration conveying table is used for conveying red dates in a vibration mode;

the roughing mechanism comprises a plurality of blanking belts and a blanking belt driving mechanism for driving the blanking belts to move; a blanking gap is formed between every two adjacent blanking belts, the jujubes to be collected fall at the blanking gap, a guide plate is obliquely arranged below each blanking belt, and the bottom of each guide plate is connected with an inlet of a jujube finished product box;

the selection mechanism comprises a ground material frame, an inlet of the ground material frame is connected with the rough selection mechanism, a funnel-shaped material guide surface is arranged in the ground material frame, the bottom of the material guide surface is connected with a screening belt positioned in the ground material frame, the screening belt is obliquely arranged and reciprocates from bottom to top, a plurality of parallel Chinese date tracks are fixed on the belt surface of the screening belt, the Chinese date tracks are obliquely arranged, and a Chinese date finished product box is arranged on one side close to the lower ends of the Chinese date tracks;

a plurality of jujube tracks which are arranged in parallel are fixed on the belt surface of the screening belt, the jujube tracks are positioned between the two middle jujube tracks, the jujube tracks are arranged in an inclined manner, the inclined direction of the jujube tracks is opposite to the inclined direction of the middle jujube tracks, and a jujube finished product box is arranged on one side close to the lower ends of the jujube tracks;

the width of the Chinese date track is matched with the size of the Chinese date to be collected;

the width of the jujube track is matched with the size of a jujube to be collected, and the bottom of the jujube track is provided with a strip-shaped falling hole.

2. The automatic red date grading mechanism according to claim 1, wherein an anti-overlapping baffle plate is installed at the lower end of the date track, the height of the anti-overlapping baffle plate is matched with the height of the dates to be collected, and a guide plate is arranged on the outer side of the anti-overlapping baffle plate.

3. The automatic red date grading mechanism according to claim 1, wherein the red date rail comprises a rail body and a mounting end, the mounting end is fixedly connected with the screening belt, a material blocking block parallel to the rail body is mounted on the mounting end, and the distance between the material blocking block and the rail body is matched with the size of the red dates to be collected.

4. The automatic red date grading mechanism according to claim 1, wherein the vibrating conveyor table has a screen on one side near the discharge end thereof, and an impurity box is placed at the bottom of the screen.

5. The automatic red date grading mechanism according to claim 1, wherein a vibrator is mounted on the feed hopper.

6. The automatic red date grading mechanism according to claim 1, wherein two sides of the screening belt are respectively provided with a baffle plate, and the baffle plates are higher than the finished jujube box and the finished Chinese date box.

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