A device based on tablet flipping detection and its usage method

Abstract

The present invention discloses a device based on tablet flip detection and its use method. The loading module is used to transfer tablets one by one to the transmission module located below. The upper surface of the transmission belt of the transmission module is provided with a through-bearing hole and is used to carry the tablets. A bearing plate is provided below the transmission belt. At the same time, the detection module is located on the transmission path of the transmission module. A spiral guide groove is provided on the bearing plate located below the detection module. The detection module includes a first visual detection component, a second visual detection component and a third visual detection component, which are sequentially arranged along the transmission path of the transmission belt so that the first visual detection component and the third visual detection component can perform visual inspection on both sides of the tablet. The spiral guide groove provided on the device realizes the flipping operation of the tablet during transmission. Without affecting the transmission efficiency, the detection operation of the upper and lower sides can be performed, thereby improving the detection efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of pharmaceutical appearance visual inspection equipment, and in particular relates to a device based on tablet flip detection and a method for using the device. Background Art

[0002] At present, domestic tablet conveying equipment plays an important role in the pharmaceutical industry. With the continuous development of medical technology, these devices are also constantly updated and improved. The following is a brief introduction to the current status of domestic tablet conveying equipment.

[0003] Automatic filling machine: Automatic filling machine is a common form of tablet conveying equipment. It can efficiently divide and package tablets. Today's automatic filling machine has a high degree of automation and can realize the rapid filling of tablets of various sizes and shapes.

[0004] Tray system: The tray system is a commonly used form of tablet transfer equipment. It can place tablets on the tray according to a certain arrangement and transfer the tablets to the next workstation by rotating or vibrating. Currently, domestic tray systems have a variety of specifications and sizes to choose from, which can meet the needs of transferring different types and quantities of tablets.

[0005] Visual inspection system In order to ensure the quality and safety of tablets during transportation, tablet transportation equipment in China is generally equipped with visual inspection systems. These systems can quickly and accurately visually inspect the appearance of tablets, including shape, color, size, etc., as well as detect abnormalities such as foreign matter.

[0006] However, in actual use, a Chinese patent application with the publication number CN108405351 A discloses an automatic tablet inspection device, comprising: a tablet conveying mechanism, an image detection mechanism, and a weight detection mechanism; the tablet conveying mechanism is provided with a transmission channel for conveying the tablets to be inspected; the image detection mechanism and the weight detection mechanism are both provided on the transmission channel. However, since such tablets have a double-sided structure, double-sided inspection is usually required. Double-sided inspection requires simultaneous inspection of both sides of the tablet, which increases the difficulty of visual processing. In addition, while ensuring transmission stability, another set of visual inspection devices is usually located below the glass perspective panel. When performing inspection without affecting transmission, the fragments falling off the glass panel will affect the visual inspection results. Summary of the Invention

[0007] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a device based on tablet flip detection and a method of using the same, which solves the above-mentioned technical problems existing in the prior art.

[0008] The purpose of the present invention can be achieved through the following technical solutions:

[0009] A device based on tablet flip detection includes a feeding module, a transmission module, a detection module, and a recovery module.

[0010] The loading module is used to transfer the tablets one by one to the transmission module located below;

[0011] The transmission module includes a transmission belt and a driving member. The upper surface of the transmission belt is provided with a through-bearing hole for carrying tablets. A bearing plate is provided below the transmission belt. The detection module is located on the transmission path of the transmission module. A spiral guide groove is provided on the bearing plate below the detection module.

[0012] The inspection module includes a first visual inspection component, a second visual inspection component, and a third visual inspection component, which are sequentially arranged along the conveying path where the conveyor belt is located. At the same time, the spiral guide groove is located between the first visual inspection component and the third visual inspection component, so that the tablets placed on the bearing holes are self-flipped 180 degrees when passing through the spiral guide groove, thereby enabling the first visual inspection component and the third visual inspection component to visually inspect both sides of the tablets;

[0013] The recovery module includes a lifting component and a blanking component. The lifting component is located below the conveyor belt. When the appearance of the tablets is abnormal, it is marked by the detection module. The abnormal tablets are ejected from the bearing hole of the conveyor belt by the lifting component. The blanking component is located at the end of the conveyor belt to recycle qualified tablets.

[0014] Furthermore, the loading module includes a hopper and a rotating wheel, and a card slot is provided on the periphery of the rotating wheel. Through the rotation of the rotating wheel, the tablets in the hopper are transferred to the transmission module below through the card slot, and the tablets fall into the bearing hole of the conveyor belt.

[0015] Furthermore, the two sides of the conveyor belt are provided with a chain belt structure, and the chain belt is driven by a driving source at the end and the conveyor belt is driven synchronously;

[0016] At the same time, the supporting plate is fixed as a whole and is arranged on the lower surface where the conveyor belt is located during transmission.

[0017] Furthermore, the thickness of the bearing hole is between the thickness of one tablet and two tablets.

[0018] Furthermore, the first visual inspection component, the second visual inspection component and the third visual inspection component all perform visual inspection on the tablets carried on the carrying holes of the conveyor belt from the top;

[0019] The second visual inspection component performs visual inspection on the side of the tablet when it is turned over.

[0020] Furthermore, a supplementary light source is provided at the workstation where the second visual detection component is located.

[0021] Furthermore, an air blowing port is provided in the middle of the lifting component, so that the lifting component can simultaneously blow air while lifting the abnormal tablets.

[0022] The method for using the device based on tablet flip detection comprises the following steps:

[0023] S1. First, the tablets are placed in the hopper, and the tablet particles are transferred to the bearing holes of the conveyor belt through the rotating wheel.

[0024] S2. transporting the carried tablet particles to the first visual inspection component via the conveyor belt for visual inspection of the upper surface of the tablets;

[0025] S3. The tablet is then driven by the conveyor belt and continues to pass through the spiral guide groove on the carrier plate. The spiral guide groove allows the tablet to self-flip 180 degrees during the conveyance process. During the flipping process, the second visual inspection component visually inspects the side position of the tablet when flipped.

[0026] S4: After the tablet is flipped over, it falls into the third visual inspection component, and the upper surface of the flipped tablet is visually inspected again, and abnormal detection results are marked;

[0027] S5. As the tablets continue to be transported along the conveyor belt, abnormal tablets are ejected by the lifting assembly and recovered by the recovery fan, and qualified tablets are recovered by the unloading assembly.

[0028] Beneficial effects of the present invention:

[0029] 1. This device is equipped with multiple visual inspection mechanisms in the direction of drug transmission, which can realize visual inspection on the two surfaces and side positions of the tablets. At the same time, the visual inspection system can detect the surface of the tablets, and the abnormal tablets will be ejected through the lifting component and taken out, and the qualified tablets will be recovered.

[0030] 2. The carrying plate of this device is provided with a spiral guide groove arranged along the transmission direction of the conveyor belt, which can realize the flipping of the tablets without an additional power source. The entire device is easy to operate and does not affect the transmission of the entire tablet.

[0031] 3. The lifting component used in this device is located below the conveyor belt. Only when an abnormal signal is received will the tablets on the bearing hole be lifted, which greatly improves the detection efficiency, and the transmission of qualified tablets will not be affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments or the prior art.

[0033] Figure 1 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0034] Figure 2 1 is a schematic diagram of a front cross-sectional structure of an embodiment of the present invention;

[0035] Figure 3 This is an embodiment of the present invention Figure 2 Schematic diagram of part of the structure at A in the middle;

[0036] Figure 4 This is a schematic diagram of the overall structure of the loading module according to an embodiment of the present invention;

[0037] Figure 5 1 is a schematic diagram of the overall structure of a transmission module according to an embodiment of the present invention;

[0038] Figure 6 is a schematic diagram of a top view of the transmission module according to an embodiment of the present invention;

[0039] Figure 7 This is a schematic diagram of the overall structure of the load-bearing plate according to an embodiment of the present invention;

[0040] Figure 8 is a schematic diagram of a top view of the load-bearing plate according to an embodiment of the present invention;

[0041] Figure 9 1 is a schematic diagram of a partial structure of a jacking assembly according to an embodiment of the present invention;

[0042] Figure 10 is a schematic diagram of a partial structure of a first visual detection component according to an embodiment of the present invention;

[0043] Figure 11 is a schematic diagram of a partial structure of a second visual detection component according to an embodiment of the present invention;

[0044] Figure 12 is a schematic diagram of a partial structure of a third visual detection component according to an embodiment of the present invention;

[0045] Figure 13 It is a schematic diagram of the partial structure of the recycling module of an embodiment of the present invention. DETAILED DESCRIPTION

[0046] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0047] like Figure 1 、 Figure 2 As shown, an embodiment of the present invention provides a device based on tablet flip detection, including a loading module 1, a transmission module 2, a detection module 3, and a recovery module 4.

[0048] like Figure 4 As shown, the loading module 1 is used to transfer tablets one by one to the conveying module 2 located below. The loading module 1 includes a hopper 11 and a rotating wheel 12. A retaining groove 121 is provided on the outer periphery of the rotating wheel 12. As the rotating wheel 12 rotates, the tablets in the hopper 11 are transferred through the retaining groove 121 to the conveying module 2 below, and the tablets fall into the bearing holes 211 of the conveyor belt 21. The number of rotations of the rotating wheel 12 can also be counted.

[0049] like Figure 3 、 Figure 5 、 Figure 6 As shown, the transmission module 2 includes a transmission belt 21 and a driving member 22. The upper surface of the transmission belt 21 is provided with a bearing hole 211 that passes through the surface. The bearing hole 211 is used to carry the tablets. In order to facilitate the transmission of the transmission belt 21, a bearing plate 23 is usually fixed to the bottom surface of the transmission belt 21 to support the bottom of the bearing hole 211, and the two sides of the transmission belt 21 are set as chain belt 212 structures, and the driving source 213 located at the end drives the chain belt 212 and synchronously drives the movement of the conveyor belt 21. At this time, the cross-section of the transmission belt 21 is a ring-shaped motion structure, and the bearing plate 23 is always fixed to the lower surface of the transmission belt 21 during transmission.

[0050] In order to ensure that the carrying hole 211 only carries one tablet, the thickness of the carrying hole 211 is usually designed to be between the thickness of one tablet and two tablets. Therefore, during transportation, only one tablet is carried in the carrying hole 211 to avoid two tablets.

[0051] like Figure 7 、 Figure 8 As shown, the detection module 3 is located on the transmission path of the transmission module 2, and a spiral guide groove 231 is provided on the supporting plate 23 located in the path below the detection module 3; the spiral guide groove 231 is arranged along the moving direction of the conveyor belt 21, so that when the tablet passes through the spiral guide groove 231 located on the supporting plate 23, the whole tablet will self-flip 180 degrees.

[0052] like Figure 10-12As shown, the detection module 3 includes a first visual detection component 31, a second visual detection component 32 and a third visual detection component 33, which are arranged in sequence along the transmission path where the conveyor belt 21 is located (and the tablets carried on the carrying hole 211 of the conveyor belt 21 are visually inspected from above). At the same time, the spiral guide groove 231 is located between the first visual detection component 31 and the third visual detection component 33, so that when the tablets carried on the carrying hole 211 pass through the spiral guide groove 231, they will self-flip 180 degrees (without the need for an additional power source), thereby enabling the first visual detection component 31 and the third visual detection component 33 to perform visual inspection on both sides of the tablet respectively.

[0053] The second visual inspection assembly 32 is located above the spiral guide groove 231. Therefore, when the tablet passes through the spiral guide groove 231, it will flip over, that is, the side will flip upward. The second visual inspection assembly 32 visually inspects the side of the tablet during flipping (at this time, the side of the tablet is flipped upward). To enhance the shooting effect and clarity of the second visual inspection assembly 32, a supplementary light source (not specifically shown in the figure) is provided at the station where the second visual inspection assembly 32 is located.

[0054] like Figure 9 、 Figure 13 As shown, the recovery module 4 includes a lifting component 42 and a blanking component 43. The lifting component 42 is located below the conveyor belt 21. The detection module 3 detects abnormal tablets and marks them. Then, the abnormal tablets are identified and ejected (i.e., pass through the bearing hole 211) by the lifting component 42, so that the abnormal tablets are separated from the bearing hole 211 of the conveyor belt 21. A negative pressure cover 41 is provided above the lifting component 42. When the tablets are separated from the bearing hole 211, they will be sucked in and taken away by the negative pressure cover 41 above.

[0055] To improve tablet ejection, an upward-blowing port is located in the center of the top portion of the lifting assembly 42, allowing the lifting assembly 42 to simultaneously blow air while lifting abnormal tablets. The suction force of the negative pressure housing 41 is limited; tablets normally transported by the conveyor belt 21 are not absorbed by the negative pressure housing 41. Tablets are only retrieved when they are clear of the carrying hole 211 (i.e., above a certain height from the conveyor belt 21).

[0056] The unloading assembly 43 is located at the end of the conveyor belt 21 and collects qualified tablets. The collected tablets fall out of the bearing hole 211 of the conveyor belt 21, thus making the bearing hole 211 empty, and are transported back to the lower end position of the rotating wheel 12 to prepare for the next batch of tablets.

[0057] The method for using the device based on tablet flip detection includes the following steps:

[0058] S1. First, tablets are placed in the hopper 11. The rotating wheel 12 is used to transfer the tablet particles one by one to the card slot 121. Then, the rotating wheel 12 rotates to transfer the tablets to the bearing hole 211 of the conveyor belt 21.

[0059] S2. The carried tablet particles are transported to the first visual inspection component 31 via the conveyor belt 21 for visual inspection of the upper surface of the tablets.

[0060] S3. The tablet then continues to pass through the spiral guide groove 231 located on the supporting plate 23 under the drive of the conveyor belt 21. The spiral guide groove 231 realizes the 180-degree self-flipping of the tablet during the conveying process. During the flipping process, the second visual inspection component 32 visually inspects the side position of the tablet when flipping.

[0061] S4. After the tablet is flipped, the other side of the tablet is flipped to the upper surface and falls into the workstation where the third visual inspection component 33 is located. The upper surface of the flipped tablet is visually inspected again. At the same time, according to the inspection results of the three groups of visual inspection components, the abnormal inspection results are marked.

[0062] S5. While the tablets are being continuously transported along the conveyor belt 21, the abnormal tablets are ejected by the lifting assembly 42, and the unqualified tablets are recovered by the negative pressure housing 41, and the qualified tablets are recovered by the unloading assembly 43.

[0063] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A device based on tablet flip detection, comprising a feeding module (1), a transmission module (2), a detection module (3), and a recovery module (4), characterized in that: The loading module (1) is used to transfer the tablets one by one to the transmission module (2) located below; The transmission module (2) includes a transmission belt (21) and a driving member (22). The upper surface of the transmission belt (21) is provided with a through-bearing hole (211) for carrying tablets. A bearing plate (23) is provided below the transmission belt (21). The detection module (3) is located on the transmission path of the transmission module (2). A spiral guide groove (231) is provided on the bearing plate (23) located below the detection module (3). The detection module (3) includes a first visual detection component (31), a second visual detection component (32) and a third visual detection component (33) and is sequentially arranged along the transmission path where the transmission belt (21) is located. At the same time, the detection module (3) is located between the first visual detection component (31) and the third visual detection component (33) through the spiral guide groove (231), so that the tablet carried on the bearing hole (211) is self-flipped 180 degrees when passing through the spiral guide groove (231), thereby realizing the visual detection of both sides of the tablet by the first visual detection component (31) and the third visual detection component (33); The recycling module (4) includes a lifting component (42) and a blanking component (43), wherein the lifting component (42) is located below the conveyor belt (21), and is used to mark abnormal tablets when the tablet appearance is detected by the detection module (3), and to eject the abnormal tablets from the bearing hole (211) of the conveyor belt (21) through the lifting component (42), and the blanking component (43) is located at the end of the conveyor belt (21) to recycle qualified tablets; The loading module (1) comprises a hopper (11) and a rotating wheel (12). A card slot (121) is provided on the periphery of the rotating wheel (12). The rotating wheel (12) rotates to transfer the tablets in the hopper (11) to the transmission module (2) below through the card slot (121), and the tablets fall onto the bearing hole (211) of the transmission belt (21). Both sides of the conveyor belt (21) are provided with a chain belt (212) structure, and the chain belt (212) is driven by a driving source (213) at the end thereof and the conveyor belt (21) is driven synchronously; At the same time, the carrying plate (23) is fixed as a whole and is arranged on the lower surface of the conveyor belt (21) during transmission.

2. The device based on tablet flip detection according to claim 1, characterized in that: The thickness of the bearing hole (211) is between the thickness of one tablet and the thickness of two tablets.

3. The device based on tablet flip detection according to claim 1, characterized in that: The first visual inspection component (31), the second visual inspection component (32), and the third visual inspection component (33) all perform visual inspection on the tablets carried on the carrying hole (211) of the conveyor belt (21) from the top; The second visual inspection component (32) is used to visually inspect the side of the tablet when it is turned over.

4. The device based on tablet flip detection according to claim 3, characterized in that: A supplementary light source is provided at the workstation where the second visual detection component (32) is located.

5. The device based on tablet flip detection according to claim 1, characterized in that: An air blowing port is provided in the middle of the lifting component (42), so that the lifting component (42) can simultaneously blow air while lifting the abnormal tablet.

6. The method for using the device based on tablet flip detection according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. First, tablets are placed in a hopper (11), and the tablet particles are transported one by one to the bearing holes (211) of a conveyor belt (21) through a rotating wheel (12); S2, transporting the carried tablet particles to the first visual inspection component (31) via the conveyor belt (21) to perform visual inspection of the upper surface of the tablet; S3, the tablet then continues to pass through the spiral guide groove (231) located on the carrier plate (23) under the drive of the conveyor belt (21), and the spiral guide groove (231) realizes the 180-degree self-flipping of the tablet during the conveying process. During the flipping process, the side position of the tablet at the time of flipping is visually inspected by the second visual inspection component (32); S4, after the tablet is flipped over, it falls into the third visual inspection component (33), and the upper surface of the flipped tablet is visually inspected again, and abnormal detection results are marked; S5. While the tablets are being transported along the conveyor belt (21), abnormal tablets are ejected by the lifting assembly (42) and recovered by the recovery blower (41), and qualified tablets are recovered by the unloading assembly (43).

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