CN219129972U - Online visual detection device in bead blasting and dropping process - Google Patents

Abstract

The utility model relates to the technical field of bead blasting preparation equipment, in particular to an online visual detection device in a bead blasting dropping process, which comprises the following components; the upper end of the visual detection channel is connected with the lower end of the blasting bead transmission channel, the upper end of the blasting bead transmission channel is positioned below the outlet of the blasting bead drip head, and core liquid and sheath liquid are converged and formed at the outlet of the blasting bead drip head to form blasting beads and flow into the blasting bead transmission channel along with carrier flowing liquid; a camera for collecting the images of the explosive beads passing through the visual detection channel; the controller is connected with the camera, judges whether the explosive beads are qualified explosive beads or unqualified explosive beads according to the image acquired by the camera, and controls the follow-up reject process to reject the unqualified explosive beads and feed back and adjust the explosive bead production process parameters according to the judging result. The online detection of the quality of the wet blasting beads in the blasting bead dropping process is realized.

Description

On-line visual inspection device in the process of popping bead dripping

technical field

The utility model relates to the technical field of popping bead preparation equipment, in particular to an on-line visual detection device in the popping bead dripping process.

Background technique

Popping beads for cigarettes can be used as the carrier of aroma substances, tar-reducing and harm-reducing substances, or some functional ingredients, and has become an important technical means for aroma compensation, quality improvement and harm reduction of cigarette products. The ideal properties of popping beads for cigarettes are thin skin, round rubber, uniform, long-lasting and brittle. However, due to the limitation of the preparation process and equipment, after drying the popping beads for cigarettes, there may be some unqualified products with appearance defects. Products, such as bubbles, empty pills, solid, bumps, too large, too small, mixed materials, black spots, depressions, poor roundness, lack of materials, tailing, mixed colors or different colors, etc. In order to ensure the external quality of the popping beads, before leaving the factory and applying, the popping beads need to be sorted by instruments, manually sorted and off-line inspection, and these popping beads with appearance defects should be removed. In actual production, these unqualified products are usually manually removed by visual observation, which has a huge workload, relatively damages eyesight, and the removal efficiency and removal rate are low. Although the off-line detection method has relatively high accuracy and strong reliability, it has poor timeliness and cannot meet the real-time status monitoring during the popping bead dripping process, and cannot adjust the process parameters in time. The online detection of the dripping process can make up for the disadvantages of offline detection. It has high timeliness and can monitor the real-time status of the wet-exploded beads during the dripping process. On the one hand, it is beneficial to adjust the process parameters in time; The next process (removal process), so as to eliminate unqualified products and reduce the pressure of subsequent detection and manual selection of finished pop beads. Therefore, it is of great significance to carry out on-line detection and elimination during the popping bead dripping process.

However, at present, the detection and control of the quality of popping beads in the tobacco industry is mostly in the state of offline detection, and the online control of the dripping process is still in its infancy. The existing technology is to manually observe the eccentricity of the wet beads at the initial stage of popping bead dripping. When obvious eccentricity occurs, the process parameters need to be adjusted repeatedly until the eccentricity disappears; after the eccentricity disappears, the time is measured manually with an electronic balance every 10 to 30 minutes The weight of 10 wet-explosive beads within a period. When the average of the two indicators exceeds any limit, the wet beads collected during this period are considered unqualified and must be rejected. The method of manually identifying eccentricity and weighing is likely to cause unstable quality of popping beads, reduce the qualified rate of popping beads, and also reduce the efficiency of dripping.

Utility model content

In view of the above-mentioned defects of the prior art, the technical problem to be solved by the utility model is to provide an on-line visual inspection device during the popping bead dropping process, which can realize the online detection of the wet popping bead quality during the popping bead dropping process.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

The utility model provides an online visual detection device in the process of popping bead dripping, comprising: a visual detection channel, the upper end of the visual detection channel is connected with the lower end of the popping bead transmission channel, and the upper end of the popping bead transmission channel is located Below the outlet of the head, the core liquid and the skin liquid are gathered at the outlet of the pop-up dripper to form pop-up beads and flow into the pop-up bead transmission channel with the carrier fluid; Acquisition; the controller is connected with the camera. The controller judges whether the popping beads are qualified or unqualified popping beads according to the image collected by the camera, and controls the subsequent elimination process according to the judgment result to remove the unqualified popping beads and produce the popping beads. Feedback regulation of process parameters.

Preferably, the cross section of the popping bead transmission channel is circular, and the visual inspection channel includes a square channel with a square cross section and a circular channel with a circular cross section. The square channel is connected with a smooth transition of equal cross-sectional area. The lower end of the square channel is connected with the upper end of the circular channel through a smooth transition of the equal cross-sectional area of the square-to-circle channel. The lower end of the circular channel leads to the subsequent elimination process. .

Preferably, the middle of the square channel is provided with optical glass along the circumference, the outer peripheral side of the square channel is provided with a visual observation window at a position corresponding to the optical glass, and the camera is arranged on the outer peripheral side of the visual observation window.

Preferably, a camera light source is further provided on the peripheral side of the visual observation window, and the camera light source is arranged on opposite sides of the visual observation window opposite to the camera.

Preferably, the camera light source is arranged on the light source bracket.

Preferably, the camera is arranged on the camera bracket.

Preferably, the circle-to-square channel, the square channel, the square-to-circle channel and the circular channel are respectively arranged in the circle-to-square conversion block, the square block, the square-to-circle conversion block and the pagoda elbow which are sequentially connected from top to bottom.

Preferably, the circle-to-square conversion block and the square block, and the square block and the square-to-circle conversion block are all connected by screws.

Preferably, the upper end of the pagoda elbow is connected to the hoop adapter seat through a hoop, and the hoop adapter seat is connected to the lower end of the square-to-circle conversion block through screws.

Preferably, it also includes a sensor for detecting whether there are popping beads passing through the visual detection channel, and the sensor is connected with the controller.

Compared with the prior art, the utility model has remarkable progress:

The on-line visual detection device in the popping bead dropping process of the utility model collects the image of the formed popping bead by setting a visual detection channel and a camera after the popping bead dropping forming process, and judges the blasting by image comparison through the controller. Whether the quality of the beads is qualified or not, the forming quality of the beads is monitored by means of visual inspection, and the online detection of the quality of the beads during the dropping process of the beads is realized. According to the online detection and judgment results, the production process parameters of the beads can be fed back Adjustment, to achieve the quality stability and pass rate of popping bead molding, and at the same time, it can also cooperate with the follow-up removal process to realize online automatic removal of unqualified popping beads.

Description of drawings

Fig. 1 is a schematic structural view of an on-line visual inspection device in the process of popping beads dripping in an embodiment of the present invention.

Fig. 2 is a top view schematic diagram of an online visual detection device during the popping bead drop making process according to the embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view along the A-A direction in Fig. 2 .

Wherein, the reference signs are explained as follows:

1 visual detection channel

1a square channel

1b circular channel

1c round to square channel

1d square to circle channel

2 cameras

3 optical glass

4 visual viewing window

5 camera light source

6 light source bracket

7 Camera Holder

8 Circle to square conversion block

9 square blocks

10 square to circle conversion block

11 pagoda elbow

12 hoop

13 Clamp adapter

14 sensors

15 Sensor bracket

Detailed ways

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail. These embodiments are only used to illustrate the utility model, but not to limit the utility model.

In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplified descriptions, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

As shown in Fig. 1 to Fig. 3, an embodiment of the on-line visual detection device in the popping bead dripping process of the present invention.

The on-line visual detection device in the popping bead dropping process of this embodiment includes a visual detection channel 1, a camera 2 and a controller. The upper end of the visual detection channel 1 is connected to the lower end of the popping bead transmission channel, and the upper end of the popping bead transmission channel is located below the outlet of the popping bead dripper. The pop-up dripper is a device that gathers the core liquid and the skin liquid (one or two layers) to form a pop-up bead. The pop-up bead is formed at the outlet of the pop-up dropper, and flows into The bead transmission channel is cooled/heated and/or light-cured, and the bead after being solidified and formed through the bead transmission channel flows into the visual detection channel 1 from the lower end of the bead transmission channel along with the carrier fluid. The camera 2 collects the images of the popping beads passing through the visual inspection channel 1, so as to monitor the molding quality of the popping beads by means of visual inspection. The controller is connected with the camera 2, and the camera 2 sends the collected images of the popping beads to the controller, and the controller receives the images collected by the camera 2, and the controller judges by image comparison based on the received images collected by the camera 2 The corresponding explosive beads are qualified explosive beads or unqualified explosive beads, and the subsequent rejecting process is controlled according to the judgment result to remove the unqualified explosive beads. At the same time, the controller also performs feedback adjustment to the explosive beads production process parameters according to the judgment results to improve molding quality and pass rate.

Therefore, in the popping bead drop making process of this embodiment, the online visual detection device collects the image of the formed poppocket by setting the visual detection channel 1 and the camera 2 after the poppocket dropping forming process, and passes the image through the controller. By comparing and judging whether the quality of the popping beads is qualified, the online detection of the quality of the wet popping beads is realized in the process of popping bead dripping. According to the online detection and judgment results, the production process parameters of the popping beads can be adjusted in feedback to achieve stable quality of the popping beads. It can improve the quality and pass rate, and can also cooperate with the follow-up removal process to realize online automatic removal of unqualified explosive beads.

Referring to Fig. 3, in this embodiment, preferably, the visual detection channel 1 includes a square channel 1a with a square cross section and a circular channel 1b with a circular cross section, the cross section of the popping ball transmission channel is circular, and the popping balls The lower end of the transmission channel and the upper end of the square channel 1a are smoothly transitioned through the equal cross-sectional area of the circular channel 1c, and the lower end of the square channel 1a and the upper end of the circular channel 1b are smoothly connected through the equal cross-sectional area of the square channel 1d. The lower end of the channel 1b leads to the rejecting assembly of the rejecting and receiving device 4, and the camera 2 is arranged on the outer peripheral side of the square channel 1a. After being solidified and formed by the blasting bead transmission channel, the popping beads flow into the visual detection channel 1 from the lower end of the blasting bead transmission channel along with the carrier fluid, and then pass through the round-to-square channel 1c, the square channel 1a, the square-to-circle channel 1d and the circular channel 1b. , the camera 2 collects images of the popping balls passing in the square channel 1a on the outer peripheral side of the square channel 1a. Thus, in the process of popping beads dripping in this embodiment, the online visual inspection device is in the first section of the visual inspection channel, and the circular popping beads transmission channel is smoothly transitioned into a square channel 1a through a circular variable square channel 1c with equal cross-sectional area. The square channel 1a collects the popping bead image, and then through the square-to-circle channel 1d, the square channel 1a has an equal cross-sectional area and smoothly transitions into a circular channel 1b, which avoids collecting the popping bead image on the outer periphery of the circular channel due to channel The distortion of the popping bead image caused by the circular shape will affect the visual inspection without changing the flow rate of the carrier fluid.

Referring to Fig. 3, in the present embodiment, preferably, the middle part of square channel 1a is provided with optical glass 3 along the circumferential direction, and the outer peripheral side of square channel 1a is provided with visual observation window 4 at the position corresponding to optical glass 3, and camera 2 is arranged on The outer peripheral side of the visual observation window 4 . The camera 2 collects the images of the popping beads passing in the square channel 1a through the visual observation window 4 and the optical glass 3 on the outer peripheral side of the square channel 1a.

Further, the peripheral side of the visual observation window 4 is also provided with a camera light source 5, the camera light source 5 is arranged on opposite sides of the visual observation window 4 relative to the camera 2, and the light emitted by the camera light source 5 passes through the visual observation window 4 and the optical glass. 3 is irradiated into the square channel 1a, which is beneficial for the camera 2 to collect clear images of the popping beads passing in the square channel 1a.

In this embodiment, preferably, the camera light source 5 is arranged on the light source bracket 6 .

In this embodiment, preferably, the camera 2 is arranged on the camera bracket 7 .

Referring to Fig. 3, in this embodiment, preferably, the circle-to-square channel 1c is set in the circle-to-square conversion block 8, the square channel 1a is set in the square block 9, and the square-to-circle channel 1d is set in the square-to-circle conversion block 10 Inside, the circular channel 1b is located in the elbow 11 of the pagoda. The circle-to-square conversion block 8, the square block 9, the square-to-circle conversion block 10 and the pagoda elbow 11 are connected sequentially from top to bottom. The lower end leads to the subsequent rejection process.

Preferably, the circle-to-square conversion block 8 and the square block 9 are connected and fixed by screws, and the square block 9 and the square-to-circle conversion block 10 are connected and fixed by screws.

Preferably, the upper end of the pagoda elbow 11 is connected to the hoop adapter 13 through the hoop 12, and the hoop adapter 13 is connected and fixed to the lower end of the square-to-circle conversion block 10 through screws.

Referring to Fig. 1 and Fig. 2, in the present embodiment, preferably, the on-line visual detection device also includes a sensor 14 in the popping bead dripping process, and the sensor 14 is used to detect whether there is a popping bead passing through in the visual detection channel 1, and the sensor 14 preferably adopts For the photoelectric sensor of the shooting area type, the sensor 14 is connected with the controller. In this embodiment, the sensor 14 is arranged on the outer peripheral side of the visual detection channel 1 , specifically on the outer peripheral side of the upper end of the square channel 1 a, and the sensor 14 is located higher than the camera 2 . When the popping beads pass through the visual detection channel 1, the sensor 14 will be triggered when the popping beads reach the square channel 1a and pass through the sensor 14, that is, the sensor 14 detects that the popping beads pass by, and the sensor 14 sends the detected trigger information to the controller, and the control The controller controls the camera 2 to take pictures according to the received trigger information, thereby collecting the images of the passing balls, the camera 2 sends the collected images to the controller, and the controller compares the received images to judge the passing balls It is a qualified popping bead or an unqualified popping bead.

In this embodiment, preferably, the sensor 14 is installed on the sensor bracket 15 .

In this embodiment, the controller is a conventional controller, such as a PLC controller or a single-chip microcomputer.

The above is only the preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and replacements can also be made. And replacement should also be regarded as the protection scope of the present utility model.

Claims (10)

1. An on-line visual detection device in the process of bead blasting and dripping is characterized by comprising;

the upper end of the visual detection channel (1) is connected with the lower end of the blasting bead transmission channel, the upper end of the blasting bead transmission channel is positioned below the outlet of the blasting bead drip head, and core liquid and skin liquid are converged and formed at the outlet of the blasting bead drip head to form blasting beads and flow into the blasting bead transmission channel along with carrier flowing liquid;

a camera (2) for collecting the image of the explosive beads passing through the visual detection channel (1);

the controller is connected with the camera (2), judges whether the explosive beads are qualified explosive beads or unqualified explosive beads according to the image acquired by the camera (2), and controls the follow-up reject process to reject the unqualified explosive beads and feed back and adjust the explosive bead production process parameters according to the judging result.

2. The online visual detection device in the bead blasting and dropping process according to claim 1, wherein the cross section of the bead blasting transmission channel is circular, the visual detection channel (1) comprises a square channel (1 a) with a square cross section and a circular channel (1 b) with a circular cross section, the lower end of the bead blasting transmission channel is in smooth transition connection with the upper end of the square channel (1 a) through a circular square channel (1 c) with equal cross section, the lower end of the square channel (1 a) is in smooth transition connection with the upper end of the circular channel (1 b) through a square round channel (1 d) with equal cross section, the lower end of the circular channel (1 b) is led to the subsequent rejecting procedure, and the camera (2) is arranged on the outer peripheral side of the square channel (1 a).

3. The online visual detection device in the bead blasting and dropping process according to claim 2, wherein an optical glass (3) is circumferentially arranged in the middle of the square channel (1 a), a visual observation window (4) is arranged at a position corresponding to the optical glass (3) on the outer peripheral side of the square channel (1 a), and the camera (2) is arranged on the outer peripheral side of the visual observation window (4).

4. An on-line visual inspection device in a bead blasting process according to claim 3, wherein a camera light source (5) is further arranged on the outer peripheral side of the visual observation window (4), and the camera light source (5) and the camera (2) are arranged on two opposite sides of the visual observation window (4) in opposition.

5. The on-line visual inspection device for a bead blasting process according to claim 4, wherein the camera light source (5) is provided on a light source bracket (6).

6. An on-line visual inspection device in a bead blasting process according to claim 2, wherein the camera (2) is provided on a camera support (7).

7. The online visual detection device in the bead blasting and dropping process according to claim 2, wherein the round square channel (1 c), the square channel (1 a), the square round channel (1 d) and the round channel (1 b) are respectively arranged in a round square conversion block (8), a square block (9), a square round conversion block (10) and a pagoda elbow (11) which are sequentially connected from top to bottom.

8. The on-line visual inspection device for bead blasting and dropping process according to claim 7, wherein the round-to-square converting block (8) and the square block (9) and the square-to-round converting block (10) are connected by screws.

9. The online visual detection device in the bead blasting and dripping process according to claim 7, wherein the upper end of the pagoda elbow (11) is connected with a clamp adapter (13) through a hoop (12), and the clamp adapter (13) is connected with the lower end of the square rounding conversion block (10) through a screw.

10. An on-line visual inspection apparatus in a bead blasting process according to claim 1, further comprising a sensor (14) for detecting whether a bead blast passes within the visual inspection channel (1), the sensor (14) being connected to the controller.

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