Sheet missing detection device for plastic package production

Abstract

The utility model discloses a missing tablet detection device for plastic package production, which comprises a support frame and a tablet plate for packaging tablets, a conveying belt is mounted on the inner side of the support frame, lifting mechanisms are fixed on the front and rear sides of the support frame, and a lifting plate is fixed between the lifting mechanisms on the front and rear sides. A plurality of detection mechanisms capable of elastically stretching out and drawing back are fixed to the lower surface of the lifting plate, the lifting plate is driven by the lifting mechanism to descend, so that the detection mechanisms are driven to descend to abut against tablets in the tablet plate, and pressure generated by making contact with the tablets is detected through pressure sensors; if tablet missing occurs, the pressure sensor cannot detect the pressure, so that tablet missing detection of tablets is realized, the tablet missing detection is not influenced by a tablet plate, the detection capability is relatively good, meanwhile, the tablet plate does not need to be packaged in advance, tablets can be directly filled when tablet missing is detected, the packaging does not need to be unpacked to take out the tablets and the tablet plate does not need to be discarded, and the efficiency is high. And the medicine plate can be reused, and resource waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of missing piece detection devices, in particular to a missing piece detection device for plastic-sealed packaging production. Background Art

[0002] When the tablets are packaged, the tablets are placed in the medicine storage cavity of the medicine plate, and then the tablets are plastic-sealed using a plastic-sealing device, thereby completing the packaging of the tablets.

[0003] The Chinese patent with announcement number CN213443430U discloses a device for detecting missing tablets on a medicine board, including a pressure seesaw and a pressure sensor. One end of the pressure seesaw points to the tablet position of the medicine board, and the other end points to the pressure sensor. When there are tablets in the medicine board, one end of the pressure seesaw is pressed down by the tablets and drops, while the other end rises and returns to its original position under the action of a reset spring and then contacts the pressure sensor, giving a signal to the pressure sensor. The device for detecting missing tablets on a medicine board provided by the utility model can quickly and accurately detect whether a medicine board is missing tablets, and can also ensure the integrity of the medicine board and tablets during the detection, thereby improving work efficiency and saving labor resources.

[0004] The above-mentioned medicine board missing tablet detection device realizes the detection of tablet missing by contacting one end of the pressure seesaw with the tablet and being subjected to the resistance of the tablet so that the other end rises and returns to its original position under the action of the reset spring and then contacts the pressure sensor, giving the pressure sensor a signal. However, when the medicine board encapsulating the tablets is thicker or harder, detection cannot be performed or the detection is inaccurate, and the encapsulated medicine board is also required. There are certain deficiencies in the detection capability. At the same time, when missing tablets are detected, the package needs to be opened and the tablets need to be taken out, and the medicine board needs to be discarded. The medicine board cannot be reused, which causes a waste of resources. Utility Model Content

[0005] In order to solve the problem that the above-mentioned medicine plate missing piece detection device has certain deficiencies in detection capability and that when missing pieces are detected, the package needs to be opened to take out the tablets, and the medicine plate needs to be discarded, and the medicine plate cannot be reused, thus causing a waste of resources, the present application provides a missing piece detection device for plastic packaging production, which adopts the following technical solution:

[0006] A missing tablet detection device for plastic-sealed packaging production comprises a support frame and a medicine plate for packaging tablets, a conveyor belt is installed on the inner side of the support frame, and lifting mechanisms are fixed on both the front and rear sides of the support frame, a lifting plate is fixed between the lifting mechanisms on the front and rear sides, and a plurality of elastically retractable detection mechanisms are fixed on the lower surface of the lifting plate, and the detection mechanisms include built-in pressure sensors.

[0007] By adopting the above technical solution, the lifting mechanism is used to drive the lifting plate to descend, thereby driving the detection mechanism to descend so as to press against the tablets in the medicine plate, and the pressure generated by the contact with the tablets is detected by the pressure sensor. If there is a missing tablet, the pressure sensor cannot detect the pressure, thereby realizing the missing tablet detection. It will not be affected by the medicine plate and has good detection capability. At the same time, there is no need to package the medicine plate in advance. At the same time, when missing tablets are detected, the tablets can be directly filled. There is no need to unpack the tablets and take out the tablets and discard the medicine plate. The medicine plate can be reused to avoid waste of resources.

[0008] Optionally, the detection mechanism also includes a shell, the pressure sensor is installed on the inner side of the shell, and a movable plate is installed in the shell below the pressure sensor, a spring is fixed to the lower side of the movable plate, and a contact block is fixed to the lower end of the spring.

[0009] By adopting the above technical solution, when the contact block contacts the tablet, the spring is pressed so that the movable plate presses the pressure sensor, thereby performing pressure detection and tablet missing detection.

[0010] Optionally, a retaining ring is fixed on the inner side of the shell near the lower port, and mounting plates are fixed on the front and rear sides of the shell near the upper end.

[0011] By adopting the above technical solution, the retaining ring limits and blocks the movable plate to prevent the movable plate from falling off the housing downward.

[0012] Optionally, a plurality of indicator lights corresponding to the detection mechanisms are fixed on the upper surface of the lifting plate, and a control box is fixed on the left side of the lifting plate, and a controller and a speaker are installed inside the control box.

[0013] By adopting the above technical solution, the controller in the control box is used to receive the pressure signal of the pressure sensor, and control the corresponding indicator light to light up and control the speaker to sound a reminder.

[0014] Optionally, evenly distributed legs are fixed to the lower side of the support frame, and support plates are fixed to the upper ends of the front and rear side plates of the support frame.

[0015] By adopting the above technical solution, the support frame installs and supports the lifting mechanism through the support plate.

[0016] Optionally, the lifting mechanism includes a lifting platform, guide rods are fixed on the lower side of the lifting platform near the left and right ends, and the lower ends of the guide rods pass through the support plate, an electric telescopic rod is fixed at the center of the upper surface of the lifting platform, and the top rod of the electric telescopic rod passes through the lifting platform and is fixedly connected to the support plate.

[0017] By adopting the above technical solution, the lifting platform is driven to descend by contracting the top rod of the electric telescopic rod, thereby driving the lifting plate to descend and driving the detection mechanism to perform detection.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The lifting plate is driven down by the lifting mechanism, thereby driving the detection mechanism to move down so as to press against the tablets in the medicine plate, and the pressure generated by contacting the tablets is detected by the pressure sensor. If there is a missing tablet, the pressure sensor cannot detect the pressure, thereby realizing the missing tablet detection. It will not be affected by the medicine plate and has good detection capability. At the same time, there is no need to package the medicine plate in advance. At the same time, when missing tablets are detected, the tablets can be directly filled. There is no need to unpack the tablets and take out the tablets and discard the medicine plate. The medicine plate can be reused to avoid waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a three-dimensional diagram of a missing piece detection device for plastic packaging production according to the utility model;

[0022] Figure 2 It is a schematic diagram of a detection mechanism of a missing piece detection device for plastic-sealed packaging production shown in the utility model;

[0023] Figure 3 It is a schematic diagram of a casing of a missing piece detection device for plastic packaging production shown in the utility model;

[0024] Figure 4 It is a schematic diagram of a lifting plate of a missing piece detection device for plastic packaging production shown in the utility model;

[0025] Figure 5 It is a schematic diagram of a support frame of a missing piece detection device for plastic packaging production shown in the utility model;

[0026] Figure 6 The utility model is a schematic diagram of a lifting mechanism of a missing piece detection device for plastic packaging production.

[0027] In the figure: 1. support frame; 11. support leg; 12. support plate; 2. conveyor belt; 3. lifting mechanism; 31. guide rod; 32. lifting platform; 33. electric telescopic rod; 4. lifting plate; 41. indicator light; 42. control box; 5. detection mechanism; 51. pressure sensor; 52. casing; 521. mounting plate; 522. retaining ring; 53. movable plate; 54. spring; 55. contact block; 6. medicine plate. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0029] Please refer to Figure 1 and Figure 2 As shown, a missing tablet detection device for plastic-sealed packaging production includes a support frame 1 and a medicine plate 6 for packaging tablets, a conveyor belt 2 is installed on the inner side of the support frame 1, and lifting mechanisms 3 are fixed on the front and rear sides of the support frame 1, a lifting plate 4 is fixed between the front and rear lifting mechanisms 3, and a plurality of elastically retractable detection mechanisms 5 are fixed on the lower surface of the lifting plate 4, the detection mechanism 5 includes a built-in pressure sensor 51, the lifting mechanism 3 drives the lifting plate 4 to descend, thereby driving the detection mechanism 5 to descend so as to press against the tablets in the medicine plate 6, and the pressure generated by contacting the tablets is detected by the pressure sensor 51, if a tablet is missing, the pressure sensor 51 cannot detect the pressure, thereby realizing the missing tablet detection of the tablet.

[0030] Please refer to Figure 2 and Figure 3As shown, the detection mechanism 5 also includes a sleeve shell 52, and a retaining ring 522 is fixed on the inner side of the sleeve shell 52 near the lower port. The retaining ring 522 limits the movable plate 53 to prevent the movable plate 53 from falling away from the sleeve shell 52. The front and rear sides of the sleeve shell 52 are fixed near the upper end with mounting plates 521, and the mounting plates 521 are used to install and fix the sleeve shell 52. The pressure sensor 51 is installed on the inner side of the sleeve shell 52, and the movable plate 53 is installed in the sleeve shell 52 at the lower side of the pressure sensor 51. A spring 54 is fixed on the lower side of the movable plate 53, and a contact block 55 is fixed at the lower end of the spring 54. When the contact block 55 contacts the tablet, the spring 54 is pressed so that the movable plate 53 presses the pressure sensor 51, thereby performing pressure detection and tablet missing detection.

[0031] Please refer to Figure 4 As shown, a plurality of indicator lights 41 corresponding to the detection mechanism 5 are fixed on the upper surface of the lifting plate 4 and can accurately point out the missing pieces. A control box 42 is fixed on the left side of the lifting plate 4. A controller and a speaker are installed on the inner side of the control box 42. The controller in the control box 42 is used to receive the pressure signal of the pressure sensor 51, and control the corresponding indicator lights 41 to light up and control the speaker to give a sound reminder.

[0032] Please refer to Figure 5 As shown, evenly distributed legs 11 are fixed to the lower side of the support frame 1 for fixed support, and support plates 12 are fixed to the upper ends of the front and rear side plates of the support frame 1. The support frame 1 installs and supports the lifting mechanism 3 through the support plates 12.

[0033] Please refer to Figure 6 As shown, the lifting mechanism 3 includes a lifting platform 32, and guide rods 31 are fixed to the lower side of the lifting platform 32 near the left and right ends, and the lower ends of the guide rods 31 pass through the support plate 12. The guide rods 31 guide the lifting platform 32 to move up and down. An electric telescopic rod 33 is fixed to the center of the upper surface of the lifting platform 32, and the top rod of the electric telescopic rod 33 passes through the lifting platform 32 and is fixedly connected to the support plate 12. The lifting platform 32 is driven to descend by the contraction of the top rod of the electric telescopic rod 33, thereby driving the lifting plate 4 to descend and driving the detection mechanism 5 to perform detection.

[0034] Working principle: When packing and inspecting the tablets, the medicine plate 6 filled with tablets is placed on the conveyor belt 2 for transportation. At this time, the contraction of the top rod of the electric telescopic rod 33 drives the lifting platform 32 to descend, thereby driving the lifting plate 4 to descend, and the lifting plate 4 drives the contact block 55 to descend. When the contact block 55 contacts the tablets, it presses the spring 54 so that the movable plate 53 presses the pressure sensor 51, and the pressure sensor 51 transmits the pressure signal to the controller. The contact block 55 cannot be pressed where there are no tablets, and the corresponding pressure sensor 51 cannot detect the pressure. At this time, the controller controls the indicator light 41 at the missing tablet location to light up as a prompt according to the signals of multiple pressure sensors 51.

[0035] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A missing tablet detection device for plastic packaging production, comprising a support frame (1) and a tablet packaging plate (6), characterized in that: A conveyor belt (2) is installed on the inner side of the support frame (1), and lifting mechanisms (3) are fixed on both the front and rear sides of the support frame (1), a lifting plate (4) is fixed between the lifting mechanisms (3) on the front and rear sides, and a plurality of elastically retractable detection mechanisms (5) are fixed on the lower surface of the lifting plate (4), and the detection mechanisms (5) include built-in pressure sensors (51).

2. The device for detecting missing pieces for plastic packaging production according to claim 1, characterized in that: The detection mechanism (5) further comprises a casing (52), the pressure sensor (51) being mounted on the inner side of the casing (52), and a movable plate (53) being mounted in the casing (52) below the pressure sensor (51), a spring (54) being fixed on the lower side of the movable plate (53), and a contact block (55) being fixed on the lower end of the spring (54).

3. A missing piece detection device for plastic packaging production according to claim 2, characterized in that: A retaining ring (522) is fixed on the inner side of the sleeve (52) near the lower end, and mounting plates (521) are fixed on both the front and rear sides of the sleeve (52) near the upper end.

4. The missing piece detection device for plastic packaging production according to claim 1, characterized in that: A plurality of indicator lights (41) corresponding one to one with the detection mechanisms (5) are fixed on the upper surface of the lifting plate (4), and a control box (42) is fixed on the left side of the lifting plate (4), and a controller and a speaker are installed inside the control box (42).

5. The missing piece detection device for plastic packaging production according to claim 1, characterized in that: The lower side of the support frame (1) is fixed with evenly distributed supporting legs (11), and the upper ends of the front and rear side plates of the support frame (1) are both fixed with supporting plates (12).

6. The missing piece detection device for plastic packaging production according to claim 1, characterized in that: The lifting mechanism (3) comprises a lifting platform (32), guide rods (31) are fixed on the lower side of the lifting platform (32) near the left and right ends, and the lower ends of the guide rods (31) penetrate the support plate (12), and an electric telescopic rod (33) is fixed at the center of the upper surface of the lifting platform (32), and the top rod of the electric telescopic rod (33) passes through the lifting platform (32) and is fixedly connected to the support plate (12).

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