Defective product removing and counting all-in-one machine

By combining a hopper, an electric vibrating conveyor, a screening device, a counting and storage device, and a rejection device, along with a camera assembly, the problem of insufficient detection accuracy for granular products in existing technologies has been solved, achieving efficient screening and rejection, and improving yield and equipment applicability.

CN223999911UActive Publication Date: 2026-03-17BEIJING MEBO HIGH-TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing defective product rejection and counting machines have limited accuracy when inspecting granular products, making it difficult to detect small defects and affecting the yield rate.

Method used

The system employs a combination of hoppers, electric vibrating conveyor trays, screening devices, counting and storage devices, and rejection devices, along with a high-speed camera, LED multi-color background board, camera light shield, and high-transmittance glass tube, to improve detection accuracy by screening and rejecting defective products.

Benefits of technology

It improves the detection accuracy of granular products, enables timely detection of defects, increases the yield rate, and enhances the processing capacity and applicability of the equipment.

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Abstract

The utility model relates to the field of grain counting machines, in particular to a defective product removing and grain counting all-in-one machine which comprises a hopper, an electric vibration channel conveying disc, a screening device, a counting and storing device and a removing device.When granular products are screened and packaged, firstly, the granular products are poured into the hopper, then the electric vibration channel conveying disc is started, and the counting and storing device is started; according to the granular product detection device, the granular products are conveyed to the screening device, the screening device can transmit screened signals to the removing device, and the removing device can remove the defective granular products after receiving the signals of the defective products, so that the yield of the produced products is effectively increased, the detection precision of the granular products is improved to a certain extent, and the detection efficiency of the granular products is improved. Flaws of the granular products can be found in time, and the yield of the granular products is increased.
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Description

Technical Field

[0001] This application relates to the field of counting machines, and in particular to an integrated machine for rejecting and counting defective products. Background Technology

[0002] A defective product rejection and counting machine is an automated device that combines defective product detection, rejection, and counting functions. This type of equipment typically integrates the following core functions: defective product detection, defective product rejection, and counting. Defective product rejection and counting machines are commonly used in pharmaceutical, food, electronics, and industrial manufacturing industries. In the pharmaceutical industry, they are used for quality screening and counting of capsules, tablets, and granular products. In the food industry, they are used to detect defective products in small food items such as candies and nuts and to quantitatively package them. In the electronics industry, they are used for quality screening and counting of small electronic components such as resistors and capacitors.

[0003] As can be seen from the relevant technologies, the integrated defective product rejection and counting machine has advantages such as automation, high efficiency, high-precision detection, and functional integration. However, at the same time, the integrated defective product rejection and counting machine also inevitably has problems such as limited detection accuracy, limited scope of application, difficulty in balancing operating speed and accuracy, high cost, technical limitations, complex equipment operation, and issues with scalability and compatibility.

[0004] The problems in the aforementioned related technologies have been solved to some extent. However, the detection accuracy of these technologies for granular products is still limited, making it difficult to detect small defects, which in turn affects the yield of granular products. Utility Model Content

[0005] In order to improve the detection accuracy of granular products, enable timely detection of defects in granular products, and improve the yield of granular products, this application provides an integrated machine for rejecting and counting defective products.

[0006] The defective product rejection and counting machine provided in this application adopts the following technical solution:

[0007] A defective product rejection counting machine includes:

[0008] A hopper is used to hold pellets;

[0009] An electrically vibrating conveyor plate is located downstream of the hopper;

[0010] A screening device is located downstream of the electrically vibrating channel conveyor plate and is used to screen the particles conveyed by the electrically vibrating channel conveyor plate.

[0011] A counting and storage device is located downstream of the screening device and is used to count and store the good particles that have been screened by the particle screening device.

[0012] A rejection device is disposed between the screening device and the counting and storage device for rejecting defective particles.

[0013] By adopting the above technical solution, the integrated machine of this application is configured as a combination of a hopper, an electric vibrating conveyor, a screening device, a counting and storage device, and a rejection device. When screening and packaging granular products, the granular products are first placed into the hopper, and then the electric vibrating conveyor is activated to transport the granular products into the screening device. Under the action of the screening device, the granular products are screened. Good granular products with intact surfaces will directly enter the counting and storage device, while defective granular products with surface defects will be rejected by the rejection device. This ensures that only good granular products enter the counting and storage device. This application improves the detection accuracy of granular products to a certain extent, can detect defects in granular products in a timely manner, and improves the yield rate of granular products.

[0014] Optionally, the screening device includes a housing, a camera assembly, and a high-transmittance glass tube. The housing is hollow and has a channel entrance. The high-transmittance glass tube is located inside the housing and the channel entrance is connected to the high-transmittance glass tube. The camera assembly is electrically connected to the rejection device.

[0015] By adopting the above technical solution, the screening device is set as a combination of a housing, a camera component, and a high-transmittance glass tube, which can efficiently capture whether there are defects on the surface of particulate products, thus facilitating subsequent rejection work.

[0016] Optionally, the camera assembly includes a high-speed camera, an LED multi-color background panel, and a camera light shield. The high-speed camera is mounted on the housing, the LED multi-color background panel is mounted inside the housing, and the camera light shield is mounted inside the housing, with the light shield located between the high-speed camera and the LED multi-color background panel.

[0017] By adopting the above technical solution, the camera component is set as a combination of a high-speed camera, an LED multi-color background board, and a camera light shield, which can effectively improve the recognition effect of the camera component, thereby facilitating screening and rejection.

[0018] Optionally, a strip-shaped convex lens is also attached to the end face of the high-transmittance glass tube near the high-speed camera.

[0019] By adopting the above technical solution, the screening function has been further improved.

[0020] Optionally, the rejection device is an airflow rejection machine.

[0021] By adopting the above technical solutions, the rejection efficiency can be effectively improved.

[0022] Optionally, the counting storage device includes a counting tank and a quick-opening valve assembly. The counting tank is located downstream of the rejection device, and a counting temporary storage cavity is provided on the counting tank. The counting temporary storage cavity is connected to the high-transmittance glass tube.

[0023] By adopting the above technical solution, it is possible to effectively count and temporarily store granular products.

[0024] Optionally, multiple counting temporary storage chambers are provided, and multiple quick-opening valve groups are provided, with each of the multiple counting temporary storage chambers corresponding to one of the multiple quick-opening valve groups.

[0025] By adopting the above technical solutions, the addition of multiple temporary storage chambers and quick-opening valve groups increases the equipment's processing capacity and applicability.

[0026] Optionally, a packaging bottle and a conveyor belt are also provided downstream of the counting and storage device.

[0027] By adopting the above technical solution, it is possible to effectively package and transport the screened granular products.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. By configuring the integrated machine of this application as a combination of a hopper, an electric vibrating conveyor, a screening device, a counting and storage device, and a rejection device, when screening and packaging granular products, the granular products are first placed into the hopper, and then the electric vibrating conveyor is activated to transport the granular products into the screening device. Under the action of the screening device, the granular products are screened. Good granular products with intact surfaces will directly enter the counting and storage device, while defective granular products with surface defects will be rejected by the rejection device. This ensures that only good granular products enter the counting and storage device. This application improves the detection accuracy of granular products to a certain extent, can detect defects in granular products in a timely manner, and improves the yield rate of granular products.

[0030] 2. By setting the camera assembly as a combination of a high-speed camera, an LED multi-color background board, and a camera light shield, the recognition effect of the camera assembly can be effectively improved, thus facilitating screening and rejection;

[0031] 3. The addition of multiple temporary storage chambers and quick-opening valve assemblies increases the equipment's processing capacity and applicability. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of a defective product rejection counting machine according to an embodiment of this application.

[0033] Figure 2 yes Figure 1 A magnified view of region D in the middle.

[0034] Figure 3 This is a flowchart of the actual production process of a defective product rejection counting machine according to this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Hopper; 2. Electric vibrating conveyor tray; 3. Screening device; 31. Housing; 32. Camera assembly; 321. High-speed camera; 322. LED multi-color background board; 323. Camera light shield; 33. High-transmittance glass tube; 4. Counting and storage device; 41. Counting tank; 42. Quick-opening valve assembly; 5. Rejection device; 51. Airflow rejection machine; 6. Channel entrance; 7. Strip-shaped convex lens; 8. Counting temporary storage chamber; 9. Packaging bottle; 10. Transmission belt; 11. Defective product collection chamber. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0038] This application discloses an integrated machine for rejecting and counting defective products.

[0039] It should be noted that, in the description of this invention, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] It should also be noted that, in the embodiments of this application, the granular product is exemplified by a regular cylindrical granular product, but the all-in-one machine of this application can be used to process granular products of other shapes, so the application field of the all-in-one machine of this application should not be limited.

[0041] Reference Figure 1 and Figure 2A defective product rejection and counting integrated machine includes a hopper 1, an electric vibrating conveyor 2, a screening device 3, a counting and storage device 4, and a rejection device 5. When screening and packaging granular products, the granular products are first poured into the hopper 1. Then, the electric vibrating conveyor 2 is activated to transport the granular products to the screening device 3. The screening device 3 transmits the screened signal to the rejection device 5. After receiving the defective product signal, the rejection device 5 rejects the defective granular products, thereby effectively increasing the yield rate of the produced products. This application improves the detection accuracy of granular products to a certain extent, can detect defects in granular products in a timely manner, and improves the yield rate of granular products.

[0042] Specifically, hopper 1 is located upstream of the entire integrated machine, meaning the operation of the entire machine starts from hopper 1, which is used to hold granular products. Downstream of hopper 1, an electrically vibrating conveyor plate 2 is installed for transporting granular products.

[0043] Specifically, a screening device 3 is provided downstream of the electric vibrating channel conveyor 2 to screen the granular products conveyed by the electric vibrating channel conveyor 2.

[0044] Furthermore, the screening device 3 includes a housing 31, a camera assembly 32, and a high-transmittance glass tube 33. The housing 31 is hollow and has a channel entrance 6. The high-transmittance glass tube 33 is located inside the housing 31 and is connected to the high-transmittance glass tube 33. The camera assembly 32 is electrically connected to the rejection device 5.

[0045] The screening device 3 is configured as a combination of housing 31, camera component 32, and high-transmittance glass tube 33. It can efficiently capture whether there are defects on the surface of particulate products, thus facilitating subsequent rejection. Housing 31 can effectively ensure that the particulate products are in a protected environment during the screening process to avoid secondary damage to the particulate products. Camera component 32 can efficiently capture the characteristics of the particle surface with high screening accuracy. High-transmittance glass tube 33 can also protect the particulate products. At the same time, high-transmittance glass tube 33 reduces light refraction and interference, ensuring the accuracy of the detection results of camera component 32.

[0046] Furthermore, the camera assembly 32 includes a high-speed camera 321, an LED multi-color background panel 322, and a camera light shield 323. The high-speed camera 321 is mounted on the housing 31, the LED multi-color background panel 322 is mounted inside the housing 31, and the camera light shield 323 is mounted inside the housing 31, with the light shield located between the high-speed camera 321 and the LED multi-color background panel 322.

[0047] The high-speed camera 321 adapts to scenes where particles pass through quickly, ensuring real-time detection and accuracy; the LED multi-color background board 322 enhances the contrast between particles and the background, improves camera recognition capabilities, and adapts to the screening needs of particles of various colors; the light shield provides a light-blocking effect, effectively avoiding external light interference and improving image clarity.

[0048] At the same time, a strip-shaped convex lens 7 is attached to the end face of the high-transmittance glass tube 33 near the high-speed camera.

[0049] The strip-shaped convex lens 7 can magnify the key areas of particles, making the detection more accurate, especially significantly improving the ability to identify small defects; the convex lens reduces image distortion, improves the overall detection effect, and further enhances the screening function.

[0050] Specifically, a counting and storage device 4 is provided downstream of the screening device 3 to count and store the good particles after the particle screening device 3 has been screened. The counting and storage device 4 includes a counting tank 41 and a quick-opening valve group 42. The counting tank 41 is located downstream of the rejection device 5. A counting temporary storage chamber 8 is provided on the counting tank 41, and the counting temporary storage chamber 8 is connected to the high-transmittance glass tube 33.

[0051] The temporary storage chamber effectively buffers the number of particles, preventing particles from accumulating too quickly and causing errors. The quick-opening valve group 42 design simplifies the further flow of materials and improves production flexibility.

[0052] Furthermore, in this embodiment of the application, multiple counting temporary storage chambers 8 are provided, and multiple quick-opening valve groups 42 are provided, with each of the multiple counting temporary storage chambers 8 corresponding to one of the multiple quick-opening valve groups 42.

[0053] The inclusion of multiple temporary storage chambers and quick-opening valve group 42 increases the equipment's processing capacity and applicability.

[0054] Specifically, a rejection device 5 is provided between the screening device 3 and the counting and storage device 4 to reject defective particles. The rejection device 5 is an airflow rejection machine 51. The granular products rejected by the rejection device 5 are collected in the defective product collection chamber 11.

[0055] Airflow rejection avoids mechanical contact damage to particles, making it especially suitable for fragile or high-precision products. At the same time, the airflow rejection device 5 has a rapid response and high rejection efficiency, adapting to the needs of high-speed production lines.

[0056] Specifically, a packaging bottle 9 and a transmission belt 10 are also provided downstream of the counting and storage device 4.

[0057] After the particles are counted, they flow directly into the packaging bottle 9, simplifying the subsequent operation process, reducing material transfer links, and automating the packaging process in conjunction with the transmission belt 10, further improving efficiency. The adjustable design of the transmission belt 10 adapts to different sizes of packaging bottles 9, improving equipment compatibility.

[0058] The implementation principle of the defective product rejection and counting integrated machine of this application is as follows: The integrated machine of this application is set as a combination of hopper 1, electric vibrating channel conveyor 2, screening device 3, counting and storage device 4, and rejection device 5. When screening and packaging granular products, the granular products are first put into hopper 1. Then, the electric vibrating channel conveyor 2 is started to transport the granular products into screening device 3. Under the action of screening device 3, the granular products are screened. Good granular products with intact surfaces will directly enter counting and storage device 4, while defective granular products with surface defects will be rejected by rejection device 5. This ensures that only good granular products enter counting and storage device 4. This application improves the detection accuracy of granular products to a certain extent, can detect defects in granular products in time, and improves the yield of granular products.

[0059] Finally, refer to Figure 3 Based on the above, taking soft capsules in pharmaceuticals as an example, the actual production process steps of the defective product rejection counting machine of this application will be described in detail:

[0060] S1. Soft capsules are placed in the hopper. The soft capsules in the hopper are arranged in sequence by an electromagnetic vibrating conveyor and then transported to the screening device.

[0061] S2. The soft capsules are identified. After entering the identification channel of the counting and defective product identification component, a high-speed camera, in conjunction with a computer and identification software, counts and identifies defective products. An LED multi-color background light panel provides a suitable background color and brightness for the corresponding product (e.g., tablets, pills, soft capsules, hard capsules, etc.) to optimize the high-speed camera's identification effect. A light shield is installed in the screening device to avoid interference from ambient light and other light sources. The high-speed identification channel consists of a channel inlet, a high-transmittance glass tube, a strip-shaped convex lens, a vortex airflow converter, and a compressed air inlet. Compressed air enters the vortex airflow converter, forming an upward vortex airflow that passes through the high-transmittance glass tube. After entering the detection channel, the soft capsules are influenced by the vortex airflow and rotate downwards through the detection area. The falling speed can be adjusted by the size of the vortex airflow to achieve the optimal identification effect.

[0062] S3. Defective products are rejected. A strip-shaped convex lens is installed in front of the high-transmittance glass tube to magnify the rotating and falling soft capsules and identify very small defects. When a defective soft capsule is identified, the quick-opening valve group closes and the defective soft capsule is blown to the defective product collection chamber by the airflow rejection device.

[0063] S4. Good products are stored. For soft capsules without defects, they enter quick-opening valve group C through the already opened quick-opening valve group A and quick-opening valve group B. The counting temporary storage chamber B, which is currently closed, closes after reaching the set count value, and the counter is reset to zero and starts counting again. Upon receiving a signal from the conveyor belt that the bottle is in place, quick-opening valve group C opens and fills the packaged bottle with the counted soft capsules. After filling is complete, quick-opening valve group C closes and quick-opening valve group B opens, entering the next counting cycle. When the count value in the counting temporary storage chamber A reaches 2 / 3 of the set count value, the electromagnetic vibrating conveyor stops working, and the equipment enters standby mode.

[0064] S5. For the collection of good products, the conveyor belt is equipped with positioning and detection devices for packaging bottles, which are not included in this invention claim and will not be described in detail.

[0065] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bad product rejection and counting all-in-one machine, characterized in that, The utility model relates to a kind of particle screening and counting device, including: Hopper (1) for holding particles; Electric vibration channel conveying disc (2) is arranged downstream of the hopper (1); Screening device (3) is arranged downstream of the electric vibration channel conveying disc (2), for screening particles transmitted by the electric vibration channel conveying disc (2); Counting and storing device (4) is arranged downstream of the screening device (3), for counting and storing good particles screened by the screening device (3); Rejection device (5) is arranged between the screening device (3) and the counting and storing device (4), for rejecting defective particles.

2. The bad product removing and counting machine according to claim 1, wherein The screening device (3) includes a housing (31), a camera assembly (32), and a high-transmittance glass tube (33). The housing (31) is hollow and has a passage inlet (6) formed therein. The high-transmittance glass tube (33) is located within the housing (31), and the passage inlet (6) communicates with the high-transmittance glass tube (33). The camera assembly (32) is electrically connected to the rejection device (5).

3. The bad product removing and counting machine according to claim 2, wherein, The camera assembly (32) includes a high-speed camera (321), an LED multi-color background plate (322), and a camera light shield (323). The high-speed camera (321) is arranged on the housing (31), the LED multi-color background plate (322) is arranged within the housing (31), and the camera light shield (323) is arranged within the housing (31). The camera light shield is located between the high-speed camera (321) and the LED multi-color background plate (322).

4. The bad product removing and counting machine according to claim 3, wherein The end surface of the high-transmittance glass tube (33) near the high-speed camera is also attached to a strip-shaped convex lens (7).

5. The bad product removing and counting machine according to claim 1, wherein The rejection device (5) is an air flow rejection machine (51).

6. The bad product removing and counting machine according to claim 2, wherein The counting and storing device (4) includes a counting tank (41) and a quick-opening valve group (42). The counting tank (41) is located downstream of the rejection device (5), and the counting tank (41) has a counting temporary storage cavity (8) formed therein. The counting temporary storage cavity (8) communicates with the high-transmittance glass tube (33).

7. The bad product removing and counting machine according to claim 6, wherein, The counting temporary storage cavity (8) is formed with multiple counting temporary storage cavities (8), and the quick-opening valve group (42) is provided with multiple quick-opening valve groups (42). The multiple counting temporary storage cavities (8) correspond to the multiple quick-opening valve groups (42) one-to-one.

8. The bad product removing and counting machine according to claim 2, wherein, Downstream of the counting and storing device (4), a packaging bottle (9) and a transmission belt (10) are further arranged.