A suction-spray high-speed visual pneumatic cocoon selection system and method

Abstract

The present invention relates to the technical field of silk cocoon sorting, and in particular to a suction-jet high-speed visual pneumatic cocoon selection system and method, comprising a cocoon feeding device, a visual cocoon selection channel and a defective cocoon placement device connected in sequence, wherein the defective cocoon placement device comprises a cocoon moving channel and a defective cocoon placement channel connected to the cocoon moving channel, wherein a pneumatic track changing device or a mechanical track changing device is provided at the connection between the defective cocoon placement channel and the cocoon moving channel, wherein the pneumatic track changing device comprises a mesh high-pressure gas blocking valve located below the cocoon moving channel, a high-pressure air blocking valve located at the connection between the cocoon moving channel and the defective cocoon placement channel, and a negative pressure balance valve located on the defective cocoon placement channel; wherein the mechanical track changing device comprises a baffle hinged on the defective cocoon placement channel and a mesh baffle hinged on the cocoon moving channel, wherein the baffle and the mesh baffle are connected by a connecting rod. Thus, defective cocoons can be conveniently classified while selecting cocoons.

Description

Technical Field

[0001] The invention relates to the technical field of silk cocoon sorting, in particular to a suction-spray type high-speed visual pneumatic cocoon sorting system and method. Background Art

[0002] Cocoon selection refers to the process of selecting and classifying raw cocoons according to the requirements of silk production. Due to the different physical constitutions of silkworms and the environment in which they are made, as well as the influence of cocoon collection, cocoon drying, and transportation, there are often some inferior cocoons that are difficult to reel into high-quality raw silk, lower cocoons that cannot be reeled, and double cocoons with two or more silkworm pupae in the cocoon. Even for cocoons of the same species, there are differences in cocoon shape, size, thickness of the cocoon layer, and color. Therefore, cocoons must be selected and classified according to different process requirements to meet the requirements of silk reeling.

[0003] In addition, in actual production, defective cocoons that cannot be reeled into silk are divided into four categories: 1. Double palace cocoons, 2. Through-head cocoons, 3. Thin-skinned cocoons with heavy inner prints, and rotten cocoons; 4. Deformed cocoons, yellow-spotted cocoons, and lightly inner-printed cocoons. Summary of the invention

[0004] The purpose of the invention is to classify defective cocoons while selecting cocoons, and to provide a suction-spray type high-speed visual pneumatic cocoon selection system and method.

[0005] In order to achieve the above-mentioned purpose, the first aspect of the present invention provides a suction-jet high-speed visual pneumatic cocoon selection system, comprising a cocoon feeding device, a visual cocoon selection channel and a defective cocoon placement device connected in sequence, the defective cocoon placement device comprising a cocoon moving channel and a defective cocoon placement channel connected to the cocoon moving channel, a pneumatic track changing device or a mechanical track changing device is provided at the connection between the defective cocoon placement channel and the cocoon moving channel, the pneumatic track changing device comprising a mesh high-pressure gas blocking valve located below the cocoon moving channel, a high-pressure air blocking valve located at the connection between the cocoon moving channel and the defective cocoon placement channel, and a negative pressure balance valve located on the defective cocoon placement channel; the mechanical track changing device comprises a baffle hinged on the defective cocoon placement channel and a mesh baffle hinged on the cocoon moving channel, the baffle and the mesh baffle being connected by a connecting rod.

[0006] The present invention also has the following preferred technical solutions:

[0007] In other embodiments, the pneumatic track changing device and the mechanical track changing device further include a first air pressure sensor arranged on the defective cocoon placing channel, a defective cocoon placing sensor and a position detection sensor arranged on the cocoon moving channel.

[0008] In other embodiments, the mechanical track changing device further includes a servo motor connected to the mesh baffle.

[0009] In other embodiments, a plurality of second air pressure sensors are further provided on the cocoon moving channel.

[0010] In other embodiments, a cocoon collecting device is provided at the other end of the cocoon moving channel connected to the visual cocoon selection channel, and the cocoon collecting device includes a negative pressure fan.

[0011] In other embodiments, the cocoon moving channel is further provided with a plurality of outlets inclined toward the nozzles of the cocoon collecting device, so that the cocoons can be suspended in the middle of the channel and pushed toward the cocoon collecting device.

[0012] In the above embodiment, a spacing device is provided between the cocoon-feeding device and the visual cocoon-selecting channel, so that the cocoons enter the visual cocoon-selecting channel in sequence and at intervals.

[0013] Furthermore, the cocoon-feeding device comprises a collector connected to the visual cocoon-selecting channel, and the collector is connected to a plurality of suction and spray cocoon-feeding devices.

[0014] Another aspect of the present invention also includes a suction-jet high-speed visual pneumatic cocoon selection method, which is characterized by comprising the following steps:

[0015] S1. The cocoon feeding device sends the cocoons into the visual cocoon selection channel one by one; S2. The cocoons are inspected by a camera outside the visual cocoon selection channel, and the defective cocoons are marked; S3. The marked defective cocoons enter the cocoon moving channel, and when they reach the defective cocoon placement channel corresponding to the mark, they are sent to the defective cocoon placement channel through a pneumatic track changing device or a mechanical track changing device and then discharged; S4. The intact cocoons directly enter the cocoon collecting device through the cocoon moving channel.

[0016] Furthermore, the step S3 includes the following steps: S31. When the defective cocoon placement sensor senses that the defective cocoon with the corresponding mark has arrived at the corresponding defective cocoon channel, the mesh high-pressure gas blocking valve prevents the defective cocoon from passing through the mesh high-pressure air curtain, and at the same time closes the high-pressure air blocking valve and the negative pressure balance valve to suck out the defective cocoon; S32. After the defective cocoon is sucked out, the mesh high-pressure gas blocking valve is cut off, the high-pressure air blocking valve is opened to form a gas barrier between the defective cocoon placement channel and the cocoon moving channel, and the negative pressure balance valve is opened to inject positive pressure gas to balance the pressure in the defective cocoon placement channel; or includes the following steps: S33. When the defective cocoon placement sensor senses that the defective cocoon with the corresponding mark has arrived at the corresponding defective cocoon channel, the servo motor drives the push-pull rod to turn the outlet composed of the mesh cover baffle and the baffle to the defective cocoon placement channel, and sucks out the defective cocoon by negative pressure; S34. After the defective cocoon is sucked out, the servo motor puts down the mesh cover baffle and the baffle, and closes the defective cocoon placement channel through the baffle.

[0017] Advantageous Effects of the Invention

[0018] The advantages of the suction-spray high-speed visual pneumatic cocoon selection system and method provided by the present invention include but are not limited to: defective cocoons can be conveniently classified while selecting cocoons and placed in different collecting devices, thereby improving the cocoon selection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structure of a suction-jet high-speed visual pneumatic cocoon selection system of the present invention is exemplarily shown;

[0020] Figure 2 The structural schematic diagram of the defective cocoon placement device of the present invention is exemplarily shown;

[0021] Figure 3 The structural schematic diagram of the pneumatic track changing device of the present invention is exemplarily shown;

[0022] Figure 4 The structural schematic diagram of the mechanical track changing device of the present invention is exemplarily shown;

[0023] Figure 5 The schematic diagram of the structure of the cocoon moving channel of the present invention is exemplarily shown;

[0024] Figure 6 The structural schematic diagram of the cocoon delivery device of the present invention is exemplarily shown;

[0025] Figure 7 The structural schematic diagram of the cocoon suction and spraying device of the present invention is exemplarily shown;

[0026] In the figure: 1. Visual cocoon selection channel 2. Cocoon moving channel 3. Defective cocoon placement channel 4. Pneumatic track changing device 5. Mechanical track changing device 6. First air pressure sensor 7. Defective cocoon placement sensor 8. Position detection sensor 9. Spacer 10. Cocoon suction and spraying device 11. Collector 101. Camera 201. Second air pressure sensor 202. Nozzle 401. Mesh high-pressure gas blocking valve 402. High-pressure air blocking valve 403. Negative pressure balance valve 501. Baffle 502. Mesh baffle 503. Connecting rod 504. Servo motor 1001. Mesh structure 1002. Cocoon suction pipeline 1003. High-pressure air nozzle 1004. Cocoon discharge port. DETAILED DESCRIPTION

[0027] The technical solution adopted in this application is further described below in conjunction with the accompanying drawings and embodiments.

[0028] See also Figure 1 and Figure 2, including a cocoon feeding device, a visual cocoon selection channel 1 and a defective cocoon placing device which are connected in sequence, the defective cocoon placing device includes a cocoon moving channel 2 and a defective cocoon placing channel 3 connected to the cocoon moving channel, the angle between the cocoon moving channel 2 and the defective cocoon placing channel 3 is adjustable, and a pneumatic track changing device 4 or a mechanical track changing device 5 is provided at the connection between the defective cocoon placing channel 3 and the cocoon moving channel 2, the pneumatic track changing device 4 and the mechanical track changing device 5 also include a first air pressure sensor 6 arranged on the defective cocoon placing channel, a defective cocoon placing sensor 7 and a position detection sensor 8 arranged on the cocoon moving channel.

[0029] See also Figure 3 The pneumatic track changing device 4 includes a mesh high-pressure gas blocking valve 401 located below the cocoon moving channel, a high-pressure air blocking valve 402 located at the connection between the cocoon moving channel and the defective cocoon placement channel, and a negative pressure balance valve 403 located on the defective cocoon placement channel;

[0030] See also Figure 4 The mechanical track-changing device 5 includes a baffle 501 hinged on the defective cocoon placement channel and a mesh baffle 502 hinged on the cocoon moving channel, the baffle 501 and the mesh baffle 502 are connected by a connecting rod 503, and also includes a servo motor connected to the mesh baffle.

[0031] The other end of the cocoon moving channel connected to the visual cocoon selection channel is provided with a cocoon collecting device, and the cocoon collecting device includes a negative pressure fan. Figure 5 The cocoon moving channel 2 is also provided with a plurality of second air pressure sensors 201 and a plurality of nozzles 202 with outlets inclined toward the cocoon collecting device, so that the cocoons can be suspended in the middle of the channel and pushed toward the cocoon collecting device.

[0032] A spacing device 9 is provided between the cocoon delivery device and the visual cocoon selection channel, so that the cocoons can enter the visual cocoon selection channel in sequence and at intervals. Figure 6 The cocoon sending device includes a collector connected to the visual cocoon selection channel, and the collector is connected to a plurality of suction and spray cocoon sending devices.

[0033] See also Figure 7 The raw cocoons are sucked in through the cocoon suction pipe 1002 of the cocoon suction and spraying device under the action of negative pressure. At the end of the cocoon suction pipe 1002, there are mesh structures 1001 in the X and Y directions, which play the role of adsorbing and restraining the cocoons. A cocoon discharge port 1004 is opened on one side of the pipe 1002, and a high-pressure air nozzle 1003 is provided on the other side to spray the cocoons out. There is a photoelectric detection switch on the pipe to detect whether the cocoons are in place.

[0034] A funnel-shaped collector is connected between the plurality of suction and spray cocoon-feeding devices, and a plurality of suction and spray cocoon-feeding devices are installed on the collector to ensure the high-density cocoon supply requirement. Cocoons are discharged alternately from each cocoon-feeding device, and the cocoons can be discharged one by one at a certain interval.

[0035] There is a spacing device near the entrance of the visual cocoon selection channel. The spacing device is a high-pressure gas spacing net. The function of this gas net is to arrange each cocoon at a certain interval and enter the visual cocoon selection channel. The visual cocoon selection channel is made of glass, with a camera detection area in the middle. When the cocoon flies into this area, the camera can perform a full-scale detection of the cocoon from four to eight angles. The visual system classifies the detected cocoons and discharges them into outlets 1, 2, 3, and 4 respectively.

[0036] Figure 1 The 1st and 2nd discharge ports are pneumatic track change devices. Each pneumatic track change device is composed of a mesh high-pressure gas blocking valve below the cocoon moving channel, a high-pressure air blocking valve located at the connection between the cocoon moving channel and the defective cocoon placement channel, and a negative pressure balance valve located on the defective cocoon placement channel to form a balanced discharge unit. When the mesh high-pressure gas blocking valve is cut off, the high-pressure air blocking valve is opened to form a gas barrier between the placement port and the cocoon moving channel, separating the cocoon moving channel from the placement channel. The placement channel is a negative pressure chamber. The negative pressure balance valve is opened to inject positive pressure gas. The pressure sensor and the proportional valve are used for coordinated control to form a pressure balance in the negative pressure chamber of the discharge channel. When the defective cocoon placement sensor sends a signal to open the placement port, the mesh high-pressure gas blocking valve opens the mesh high-pressure air curtain to prevent the defective cocoons from passing through. At the same time, the high-pressure air blocking valve and the negative pressure balance valve are closed, and the discharge port presents a negative pressure state to suck out the defective cocoons.

[0037] Figure 1 The 3rd and 4th outlets are mechanical track-changing devices. A baffle is set between the defective cocoon placement channel and the cocoon moving channel to block it. A mesh baffle is set opposite to it. The two baffles are fixedly hinged in the direction of the entrance of the cocoon moving channel. The two baffles are connected by a connecting rod in the direction of the exit, forming a quadrilateral defective cocoon track-changing device that can swing by two fixed hinges and two movable hinges. The baffles are connected by a push-pull rod, which is driven by a servo motor. When the defective cocoon placement sensor sends a signal to open the placement port, the servo motor drives the push-pull rod to turn the exit of the track-changing device to the defective cocoon placement channel, and the defective cocoons are sucked out by negative pressure.

[0038] Several pressure sensors are installed in the cocoon moving channel to detect the pressure change. A large number of small nozzles are distributed around the cocoon moving channel, which are inclined toward the outlet. From the entrance to the exit, when the pressure in each area of ​​the channel changes, the small nozzles will automatically balance the pressure in each area to ensure that each cocoon passes at a stable speed. The small nozzles inclined toward the outlet play a role in restraining the cocoon in the middle of the channel and lifting the cocoon to the exit.

[0039] The specific method is as follows:

[0040] S1. The cocoon feeding device sends the cocoons into the visual cocoon selection channel one by one; S2. The cocoons are inspected by a camera outside the visual cocoon selection channel, and the defective cocoons are marked; S3. The marked defective cocoons enter the cocoon moving channel, and when they reach the defective cocoon placement channel corresponding to the mark, they are sent to the defective cocoon placement channel through a pneumatic track changing device or a mechanical track changing device and then discharged; S4. The intact cocoons directly enter the cocoon collecting device through the cocoon moving channel.

[0041] Wherein, the step S3 includes the following steps: S31. When the defective cocoon placement sensor senses that the defective cocoon with the corresponding mark arrives at the corresponding defective cocoon channel, the mesh high-pressure gas blocking valve prevents the defective cocoon from passing through the mesh high-pressure air curtain, and at the same time closes the high-pressure air blocking valve and the negative pressure balance valve to suck out the defective cocoon; S32. After the defective cocoon is sucked out, the mesh high-pressure gas blocking valve is cut off, the high-pressure air blocking valve is opened to form a gas barrier between the defective cocoon placement channel and the cocoon movement channel, and the negative pressure balance valve is opened to inject positive pressure gas to balance the pressure in the defective cocoon placement channel; or includes the following steps: S33. When the defective cocoon placement sensor senses that the defective cocoon with the corresponding mark arrives at the corresponding defective cocoon channel, the servo motor drives the push-pull rod to turn the outlet composed of the mesh cover baffle and the baffle to the defective cocoon placement channel, and sucks out the defective cocoon by negative pressure; S34. After the defective cocoon is sucked out, the servo motor puts down the mesh cover baffle and the baffle, and closes the defective cocoon placement channel through the baffle.

[0042] Therefore, different types of defective cocoons can be marked and collected from different defective cocoon placement channels to improve the classification efficiency of defective cocoons and facilitate the processing of defective cocoons.

[0043] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical solutions and novel concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A suction-jet high-speed visual pneumatic cocoon selection system, comprising a cocoon feeding device, a visual cocoon selection channel and a defective cocoon placement device connected in sequence, characterized in that: The defective cocoon placing device comprises a cocoon moving channel and a defective cocoon placing channel connected to the cocoon moving channel, a pneumatic track changing device or a mechanical track changing device is provided at the connection between the defective cocoon placing channel and the cocoon moving channel, the pneumatic track changing device comprises a mesh high-pressure gas blocking valve located below the cocoon moving channel, a high-pressure air blocking valve located at the connection between the cocoon moving channel and the defective cocoon placing channel, and a negative pressure balance valve located on the defective cocoon placing channel; the mechanical track changing device comprises a baffle plate hinged on the defective cocoon placing channel and a mesh baffle plate arranged opposite to the cocoon moving channel and hinged on the cocoon moving channel, the baffle plate and the mesh baffle plate are connected by a connecting rod; The other end of the cocoon moving channel connected to the visual cocoon selection channel is provided with a cocoon collecting device, and the cocoon collecting device includes a negative pressure fan; the cocoon moving channel is also provided with a plurality of nozzles with outlets inclined toward the cocoon collecting device, so that the cocoons can be suspended in the middle of the channel and pushed toward the cocoon collecting device.

2. A suction-jet high-speed visual pneumatic cocoon selection system as claimed in claim 1, characterized in that: The pneumatic track changing device and the mechanical track changing device further include a first air pressure sensor arranged on the defective cocoon placing channel, a defective cocoon placing sensor and a position detection sensor arranged on the cocoon moving channel.

3. A suction-jet high-speed visual pneumatic cocoon selection system as claimed in claim 2, characterized in that: The mechanical track changing device also includes a servo motor connected to the mesh baffle.

4. A suction-jet high-speed visual pneumatic cocoon selection system as claimed in claim 3, characterized in that: A plurality of second air pressure sensors are also arranged on the cocoon moving channel.

5. A suction-jet high-speed visual pneumatic cocoon selection system as claimed in any one of claims 1 to 4, characterized in that: A spacing device is arranged between the cocoon-feeding device and the visual cocoon-selecting channel, so that the cocoons enter the visual cocoon-selecting channel in sequence and at intervals.

6. A suction-jet high-speed visual pneumatic cocoon selection system as claimed in claim 5, characterized in that: The cocoon sending device comprises a collector connected to the visual cocoon selection channel, and the collector is connected to a plurality of suction and spray cocoon sending devices.

7. A suction-jet high-speed visual pneumatic cocoon selection method, characterized in that: The following steps are involved: S1. The cocoon feeding device sequentially feeds the cocoons into the visual cocoon selection channel; S2. The cocoons are detected by a camera outside the visual cocoon selection channel, and defective cocoons are marked; S3. The marked defective cocoons enter the cocoon moving channel, and when they reach the defective cocoon placement channel corresponding to the mark, they are fed into the defective cocoon placement channel by a pneumatic track changing device or a mechanical track changing device and then discharged; S4, the intact cocoons directly enter the cocoon collecting device through the cocoon moving channel; the step S3 includes the following steps: S31, when the defective cocoon placement sensor senses that the defective cocoon with the corresponding mark has arrived at the corresponding defective cocoon channel, the mesh high-pressure gas blocking valve prevents the defective cocoon from passing through the mesh high-pressure air curtain, and at the same time closes the high-pressure air blocking valve and the negative pressure balance valve to suck out the defective cocoon; S32, after the defective cocoon is sucked out, the mesh high-pressure gas blocking valve is closed, the high-pressure air blocking valve is opened to form a gas barrier between the defective cocoon placement channel and the cocoon moving channel, and the negative pressure balance valve is opened to inject positive pressure gas to balance the pressure in the defective cocoon placement channel; or includes the following steps: S33, when the defective cocoon placement sensor senses that the defective cocoon with the corresponding mark has arrived at the corresponding defective cocoon channel, the servo motor drives the push-pull rod to turn the outlet composed of the mesh cover baffle and the baffle to the defective cocoon placement channel, and suck out the defective cocoon by negative pressure; S34, after the defective cocoons are sucked out, the servo motor lowers the mesh cover baffle and the baffle, and the defective cocoon placement channel is closed by the baffle; the other end of the cocoon moving channel connected to the visual cocoon selection channel is provided with a cocoon collecting device, and the cocoon collecting device includes a negative pressure fan; the cocoon moving channel is also provided with a plurality of nozzles with outlets inclined toward the cocoon collecting device, so that the cocoons can be suspended in the middle of the channel and pushed toward the cocoon collecting device.

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