Discharging and conveying device

Abstract

The utility model relates to a blanking conveying device which comprises a working table, at least two groups of first-stage blanking assemblies and a group of second-stage blanking assemblies are arranged on the working table, and each group of first-stage blanking assemblies comprises a charging barrel, a first-stage rotating disc and a feeding ring; the charging barrel and the first-stage rotating disc can rotate around respective axes, the upper end of the first-stage rotating disc can be flush with the top face of the charging barrel, and a feeding guide groove is formed in the bottom face of the feeding ring. The second-stage discharging assembly comprises a distribution chamber and a second-stage rotating disc which is rotatably arranged at the bottom of the distribution chamber and horizontally placed, the outlet end of the feeding guide groove communicates with the distribution chamber through a corresponding conveying channel, the distribution chamber further communicates with an output single channel, and the extending direction of the output single channel is arranged in the tangential direction of the second-stage rotating disc. According to the utility model, a plurality of tablets and other materials can be quickly arranged, the feeding efficiency of the materials is effectively improved, and more efficient blanking and conveying are realized.

Description

Technical Field

[0001] The utility model relates to the field of pharmaceutical equipment, in particular to a material feeding and conveying device. Background Art

[0002] In recent years, sustained-release technology has received extensive attention. The advantages of sustained-release preparations are stable blood drug concentration, reduced toxic side effects, reduced frequency of medication, easy use, and improved patient compliance. In particular, the drug release of osmotic pump controlled-release preparations conforms to the zero-order release equation, can maintain a constant release rate for a long time, has good in vitro and in vivo correlation, reduces the frequency and degree of adverse drug reactions, and improves the effectiveness and safety of drugs. Common osmotic pump tablets in production include single-layer osmotic pump controlled-release tablets and double-layer osmotic pump controlled-release tablets. The structural characteristics of double-layer osmotic pump controlled-release tablets are: one layer of the tablet core of the preparation is composed of drugs and carriers, which is called the drug-containing layer; the other layer of the tablet core is composed of permeation-promoting polymers, osmotic pressure enhancers and other excipients, which is called the booster layer. The tablet core is coated with a semipermeable coating, and a drug release hole is punched on the surface of the semipermeable membrane with a laser. When the osmotic pump tablet enters the water environment, water enters the tablet core through the semipermeable membrane under the action of osmotic pressure, and the drug is partially dissolved or suspended in the water. At the same time, the permeation-promoting polymer in the booster layer expands in volume after absorbing water, which will have a certain driving effect on the release of the drug, and slowly and constantly push the drug in the drug-containing layer out of the drug release hole, thereby keeping the blood drug concentration relatively stable.

[0003] However, the current laser punching machine for osmotic pump controlled release tablets can punch very fast, but the tablet feeding efficiency of the feeding device matched with the laser punching machine is low, which affects the punching speed of the laser punching machine for osmotic pump controlled release tablets. In addition, for double-layer controlled release tablets, the existing operation of making the same color side of the double-layer controlled release tablets face up is inefficient, which also affects the punching speed of the laser punching machine for osmotic pump controlled release tablets, and the efficiency of pharmaceutical factories in producing double-layer controlled release tablets is also low. Utility Model Content

[0004] The utility model aims to provide a material feeding and conveying device, which can quickly arrange a plurality of materials such as tablets, effectively improve the feeding efficiency of the materials, and realize more efficient material feeding and conveying.

[0005] The object of the utility model is achieved in this way. A material unloading and conveying device comprises a workbench, on which at least two groups of primary unloading assemblies and one group of secondary unloading assemblies are arranged; each group of primary unloading assemblies comprises a rotatable barrel, a primary turntable rotatably arranged at the bottom of the barrel and tilted, and a feeding ring buckled on the top of the barrel and fixedly connected to the workbench; the barrel and the primary turntable can rotate around their respective axes respectively, the upper end of the primary turntable can be flush with the top surface of the barrel, a feeding guide groove is provided on the bottom surface of the feeding ring, a part of the feeding guide groove is arranged along the circumferential direction of the feeding ring, and the extension direction of the other part is arranged along the tangential direction of the feeding ring; the secondary unloading assembly comprises a distribution chamber and a secondary turntable rotatably arranged at the bottom of the distribution chamber and horizontally placed, the outlet end of the feeding guide groove is connected with the distribution chamber through a corresponding transmission channel, the distribution chamber is also connected with an output single channel, and the extension direction of the output single channel is arranged along the tangential direction of the secondary turntable.

[0006] In a preferred embodiment of the utility model, a plurality of first jet holes are provided at intervals along the length direction of the bottom center line of the transmission channel, and the axes of the first jet holes are arranged obliquely upward and face the front of the transmission direction of the transmission channel; a plurality of second jet holes are provided at intervals along the length direction of the bottom center line of the output single channel, and the axes of the second jet holes are arranged obliquely upward and face the front of the transmission direction of the output single channel.

[0007] In a preferred embodiment of the utility model, a secondary mounting groove is opened on the workbench, a secondary mounting ring is detachably fixed around the groove position of the secondary mounting groove on the table surface of the workbench, a secondary cover plate is detachably installed on the secondary mounting ring, the secondary mounting groove, the secondary mounting ring and the secondary cover plate form a distribution chamber, and the thickness between the top inner wall of the distribution chamber and the secondary turntable matches the thickness of a single material.

[0008] In a preferred embodiment of the present invention, there are two groups of first-stage material discharge components, the barrels of the two groups of first-stage material discharge components are arranged side by side and rotate in opposite directions, and a material conveying structure is provided between the two groups of first-stage material discharge components, and the material conveying structure has two conveying channels arranged side by side and spaced apart.

[0009] In a preferred embodiment of the present invention, the material conveying structure includes an elongated bottom plate arranged on the workbench, a cover plate is detachably provided on the bottom plate, two elongated grooves are provided on the cover plate, and the elongated grooves can be enclosed with the bottom plate to form a conveying channel.

[0010] In a preferred embodiment of the present invention, each first-stage unloading assembly also includes a unloading hopper, a unloading conveyor belt and a unloading guide structure. The first end of the unloading conveyor belt can be connected to the bottom discharge port of the unloading hopper, the second end of the unloading conveyor belt can be connected to the entrance of the guide channel of the unloading guide structure, and the outlet of the guide channel can extend into the barrel.

[0011] In a preferred embodiment of the utility model, a material level sensor is provided on the feeding ring; the material discharge guide structure includes a horizontal protective shell and a vertical protective cylinder vertically connected, the horizontal protective shell is a groove-shaped structure with an opening at the top and is connected to the bottom of the material discharge hopper, and the material discharge conveyor belt is arranged in the horizontal protective shell; the interior of the vertical protective cylinder constitutes a guide channel.

[0012] In a preferred embodiment of the utility model, at least one waste rejection mechanism is provided on the workbench along the circumference of the feed ring, each waste rejection mechanism includes a color sensor and a blowing structure, a detection notch cooperating with the color sensor is provided on the feed ring, and the detection notch can be connected with the feed guide groove; the air outlet of the blowing structure is opposite to the side wall of the feed guide groove and can be connected with the feed guide groove.

[0013] In a preferred embodiment of the present invention, two waste rejection mechanisms are provided, one of which is arranged near the inlet end of the feeding guide groove, and the other is arranged near the outlet end of the feeding guide groove.

[0014] In a preferred embodiment of the utility model, a primary installation groove is opened on the workbench, the barrel is rotatably arranged in the primary installation groove, and a primary cover plate is detachably installed on the feeding ring; the rotation speed of the barrel is greater than the rotation speed of the primary turntable.

[0015] As described above, the material unloading and conveying device in the utility model can quickly arrange multiple tablets and other materials into single-row materials by utilizing the cooperation of the barrel, the first-level turntable and the feeding guide groove in the first-level unloading assembly. By combining the single-row and single-row materials arranged by at least two groups of first-level unloading assemblies into a distribution chamber and outputting them through a single output channel, it can be used to provide single-row materials for the laser punching machine. Since the efficiency of a single first-level unloading assembly is relatively low, the present device can meet the laser punching machine's requirement for single-row materials by combining the materials arranged by at least two groups of first-level unloading assemblies through the same second-level unloading assembly and then outputting them in the form of a single channel, which can not only meet the laser punching machine's requirement for single-row materials, but also greatly improve the material feeding efficiency, achieve more efficient unloading and conveying, and improve the overall drilling efficiency of the laser punching machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0017] Figure 1 : A structural schematic diagram of the material unloading and conveying device provided by the utility model without installing the primary cover plate and the secondary cover plate.

[0018] Figure 2 : A schematic diagram of the structure of the material unloading and conveying device provided by the utility model after installing the primary cover plate and the secondary cover plate.

[0019] Figure 3 : A partial structural schematic diagram of the material unloading and conveying device provided by the utility model without the primary cover plate and the secondary cover plate installed.

[0020] Description of Figure Numbers:

[0021] 1. First-level blanking components;

[0022] 11. Barrel; 12. First-stage turntable; 13. Feeding ring; 131. Feeding guide groove; 132. Installation notch; 14. Unloading hopper; 15. Unloading conveyor belt; 16. Unloading guide structure; 161. Horizontal protective shell; 162. Vertical protective cylinder; 1621. Inclined baffle; 17. Material level sensor; 18. Waste rejection mechanism; 181. Color sensor; 182. Blowing structure; 19. First-stage cover plate;

[0023] 2. Material conveying structure; 21. Conveying channel;

[0024] 3. Secondary blanking assembly;

[0025] 31. Secondary turntable; 32. Output single channel; 33. Secondary mounting ring; 34. Secondary cover plate;

[0026] 4. Workbench. DETAILED DESCRIPTION

[0027] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0028] like Figures 1 to 3 As shown, the present embodiment provides a material unloading and conveying device, including a workbench 4, on which are arranged at least two groups of first-level unloading components 1 and one group of second-level unloading components 3; each group of first-level unloading components 1 includes a rotatable barrel 11, a first-level turntable 12 rotatably arranged at the bottom of the barrel 11 and tilted, and a feed ring 13 buckled on the top of the barrel 11 and fixedly connected to the workbench 4; the barrel 11 and the first-level turntable 12 can rotate around their respective axes respectively, the upper end of the first-level turntable 12 can be flush with the top surface of the barrel 11, and a feed guide groove 131 is provided on the bottom surface of the feed ring 13, a part of the feed guide groove 131 is arranged along the circumferential direction of the feed ring 13, and the extension direction of the other part is arranged along the tangential direction of the feed ring 13.

[0029] The secondary unloading assembly 3 includes a distribution chamber and a secondary turntable 31 which is rotatably arranged at the bottom of the distribution chamber and placed horizontally. The outlet end of the feeding guide groove 131 is connected to the distribution chamber through the corresponding transmission channel 21. The distribution chamber is also connected to an output single channel 32, and the extension direction of the output single channel 32 is arranged along the tangent direction of the secondary turntable 31.

[0030] The device can be used for feeding and conveying materials such as round osmotic pump controlled-release tablets (hereinafter referred to as tablets). When in use, multiple tablets are poured into the barrel 11, and multiple tablets fall onto the primary turntable 12. The primary turntable 12 is inclined. After entering the primary turntable 12, multiple tablets automatically fall into the lowest part of the inclined primary turntable 12 under the action of gravity, and move upwards through the centrifugal force as the primary turntable 12 rotates, and enter the top surface of the barrel 11 through the highest edge of the primary turntable 12. The feeding guide groove 131 and the top surface of the barrel 11 can be enclosed to form a track groove with an inner opening. The height and width of the track groove match the thickness and diameter of the tablet. Only one tablet can enter at a time in the width direction of the track groove (that is, the radial direction of the barrel 11), so that multiple tablets enter the track groove in a single row. Driven by the rotation of the barrel 11, the tablets move along the feeding guide groove 131, and enter the distribution chamber through the corresponding transmission channel 21 in a single row. Under the action of the rotating centrifugal force of the secondary turntable 31 in the distribution chamber, they are output to the punching track of the laser punching machine through the output single channel 32.

[0031] Therefore, the material unloading and conveying device in this embodiment, by utilizing the cooperation of the barrel 11, the first-level turntable 12 and the feeding guide groove 131 in the first-level unloading component 1, can quickly arrange multiple tablets and other materials into single-row materials, and by combining at least two groups of single-row materials arranged by the first-level unloading components 1 into a distribution chamber and outputting them through a single output channel 32, it can be used to provide single-row materials for the laser punching machine. Since the efficiency of a single first-level unloading component 1 is relatively low, this device can meet the laser punching machine's requirement for single-row materials by combining at least two groups of materials arranged by the first-level unloading components 1 through the same second-level unloading component 3 and then outputting them in the form of a single channel, which can not only meet the laser punching machine's requirement for single-row materials, but also greatly improve the material feeding efficiency, achieve more efficient unloading and conveying, and improve the overall drilling efficiency of the laser punching machine.

[0032] In a specific implementation, in order to facilitate the smooth delivery of multiple tablets and other materials to the distribution chamber through the conveying channel 21, a plurality of first jet holes are provided at intervals along the length direction of the bottom center line of the conveying channel 21, and the axis of the first jet hole is arranged obliquely upward and toward the front of the conveying direction of the conveying channel 21.

[0033] Under the action of centrifugal force, multiple tablets and other materials enter the conveying channel 21 through the rear half of the feeding guide groove 131. On the one hand, the inertia of the centrifugal force causes the rear tablet to push the front tablet forward; on the other hand, under the jet action of the first jet hole, the first jet hole is arranged forward, blowing each tablet forward, providing a forward thrust to the tablet. At the same time, the first jet hole is inclined upward, so that the tablet can be blown upward, reducing the friction between the tablet and the bottom of the conveying channel 21, increasing the running speed of the tablet, so that each tablet can move forward quickly and enter the distribution chamber.

[0034] In order to facilitate the smooth output of the tablets to the punching track of the laser punching machine through the output single channel 32, a plurality of second jet holes are arranged at intervals along the length direction of the bottom center line of the output single channel 32, and the axes of the second jet holes are arranged obliquely upward and face the front of the conveying direction of the output single channel 32. The specific principle is the same as that of the first jet hole, so that the tablets can move forward quickly and enter the punching track.

[0035] In order to facilitate the installation of the secondary unloading component 3, a secondary installation groove is opened on the workbench 4, and a secondary installation ring 33 is detachably fixed around the groove position of the secondary installation groove on the table surface of the workbench 4, and a secondary cover plate 34 is detachably installed on the secondary installation ring 33. The secondary installation groove, the secondary installation ring 33 and the secondary cover plate 34 form a distribution chamber, and the thickness between the top inner wall of the distribution chamber and the secondary turntable 31 matches the thickness of a single material.

[0036] The secondary turntable 31 is a flat plate, and its surface is basically flush with the surface of the workbench 4; the secondary cover plate 34 is a flat plate structure, which can be detachably mounted on the secondary mounting ring 33 by fasteners, and the thickness between the secondary cover plate 34 and the secondary turntable 31 (that is, the thickness of the secondary mounting ring 33) matches the thickness of a single material (that is, a single tablet). The secondary mounting ring 33 can be replaced with secondary mounting rings 33 of different thicknesses according to the thickness of different tablets to accommodate tablets of more specifications and sizes.

[0037] Since the laser punching machine used for osmotic pump controlled-release tablets is expensive, most pharmaceutical factories only have one laser punching machine. In this embodiment, multiple tablets are sorted separately by multiple groups of first-level feeding components 1, and then sorted by a group of second-level feeding components 3 and transported to the punching track of the laser punching machine through a single channel, so as to achieve efficient feeding.

[0038] The specific number of groups of the first-level blanking assembly 1 is determined according to the needs. Considering that the first-level blanking assembly 1 occupies a large space, in actual application, it is preferred that the first-level blanking assembly 1 has two groups, referring to Figure 1 There are two groups of primary material discharging components 1, and the barrels 11 of the two groups of primary material discharging components 1 are arranged side by side and rotate in opposite directions (for example, in this embodiment, Figure 1 The barrel 11 near the left side rotates clockwise, and the barrel 11 near the right side rotates counterclockwise), a material conveying structure 2 is provided between the two groups of primary unloading components 1, and the material conveying structure 2 has two conveying channels 21 arranged side by side and spaced apart.

[0039] The first end of the material conveying structure 2 is located between the two first-level unloading components 1, and the second end is connected to the distribution chamber of the second-level unloading component 3. The two sets of independent first-level unloading components 1 simultaneously convey the tablets to the second-level turntable 31 through a set of material conveying structures 2. The material conveying structure 2 has a dual channel inside, and each set of first-level unloading components 1 uses one channel alone. The entrance of the distribution chamber in the second-level unloading component 3 is a dual channel (respectively docked with the two conveying channels 21 in the material conveying structure 2), and the exit is a single channel (docked with the output single channel 32). Through the rotation of the second-level turntable 31, the tablets in the two channels in the material conveying structure 2 are merged together, and the single channel is output to the punching track of the laser punching machine.

[0040] When there are two sets of primary unloading components 1, the outlets of the conveying channels 21 are arranged along the tangent direction of the secondary turntable 31, so that the tablets are quickly integrated into the centrifugal rotation at the moment they enter the secondary turntable 31, without much adjustment, further improving work efficiency.

[0041] In order to facilitate processing and installation, the material conveying structure 2 includes a long strip bottom plate arranged on the workbench 4, and a cover plate is detachably arranged on the bottom plate. Two long strip grooves are arranged on the cover plate, and the long strip grooves can be enclosed with the bottom plate to form a conveying channel 21. The above-mentioned first jet hole is arranged on the bottom plate. The output single channel 32 is also formed by the corresponding slotted cover plate and the corresponding bottom plate fixed on the workbench. The above-mentioned second jet hole is arranged on the bottom plate. The dimensions (height and width) in each conveying channel and the dimensions (height and width) of the output single channel 32 are matched with the dimensions of a single tablet. When in use, cover plates of different sizes can be replaced according to the size specifications of the tablets to form conveying channels 21 and output single channels 32 of different sizes.

[0042] Furthermore, a material level sensor 17 is provided on the feeding ring 13 (specifically fixed on the inner side wall of the feeding ring 13 ) for detecting the amount of material on the primary turntable 12 .

[0043] Reference Figure 1 Each first-stage unloading assembly 1 also includes a unloading hopper 14, a unloading conveyor belt 15 and a unloading guide structure 16. The first end of the unloading conveyor belt 15 can be connected to the bottom discharge port of the unloading hopper 14, and the second end of the unloading conveyor belt 15 can be connected to the entrance of the guide channel of the unloading guide structure 16, and the outlet of the guide channel can extend into the barrel 11.

[0044] In use, a plurality of tablets are poured into the discharge hopper 14, and the tablets fall onto the discharge conveyor belt 15 under the action of gravity. The discharge conveyor belt 15 conveys the tablets into the barrel 11 through the guide channel of the discharge guide structure 16, and slides onto the primary turntable 12. In this process, the amount of tablets in the barrel 11 can be controlled by the material level sensor 17, and the amount of tablets in the barrel 11 can be controlled by controlling the discharge conveyor belt 15 to run or stop by the material level sensor 17.

[0045] It can be understood that the entire device also includes a controller, which is connected to the material level sensor 17. When there are too many tablets in the barrel 11, the controller controls the unloading conveyor 15 to stop; when there are too few tablets in the barrel 11, the controller controls the unloading conveyor 15 to run, so that the tablet unloading amount remains constant.

[0046] Reference Figure 2 Generally, the material discharge guide structure 16 includes a vertically connected horizontal protective shell 161 and a vertical protective cylinder 162. The horizontal protective shell 161 is a groove-shaped structure with an open top and is connected to the bottom of the material discharge hopper 14. The material discharge conveyor belt 15 is arranged in the horizontal protective shell 161; the interior of the vertical protective cylinder 162 constitutes a guide channel.

[0047] The vertical protective tube 162 can be Figure 1 and Figure 2 The cylindrical structure shown in FIG. 1 is formed by two rectangular side plates and two trapezoidal side plates. The two trapezoidal plates make the upper port of the vertical protective cylinder 162 an inclined port, and an inclined baffle 1621 is connected to the bottom of the upper port. The arrangement of the horizontal protective shell 161 and the vertical protective cylinder 162 can prevent the tablets from splashing during the unloading process, and play a better protective role.

[0048] The device can be used for feeding and conveying single-layer osmotic pump controlled-release tablets, and can also be used for feeding and conveying double-layer osmotic pump controlled-release tablets, and can greatly improve the conveying efficiency. Since the drug-containing layer and the booster layer of the double-layer controlled-release tablets are different colors, the laser punching device needs to punch holes on the drug-containing layer. When applied to double-layer controlled-release tablets, in order to ensure that the drug-containing layers of the tablets are facing upward, at least one waste rejection mechanism 18 is provided on the workbench 4 along the circumference of the feed ring 13, and each waste rejection mechanism 18 includes a color sensor 181 and a blowing structure 182. A detection notch that cooperates with the color sensor 181 is provided on the feed ring 13, and the detection notch can be connected to the feed guide groove 131; the air outlet of the blowing structure 182 is directly opposite to the side wall of the feed guide groove 131 and can be connected to the feed guide groove 131.

[0049] The reject mechanism 18 can be used to reject tablets with the boosting layer facing upward, ensuring that all double-layer controlled-release tablets have the drug-containing layer facing upward and enter the secondary turntable 31 through the conveying guide groove.

[0050] Generally, at least one mounting notch 132 can be provided on the feed ring 13, and the waste rejection mechanism 18 is located at the mounting notch 132 and fixed on the workbench 4 through a corresponding mounting frame. The above-mentioned detection notch passes through the feed ring 13 from top to bottom, and the number of the detection notch and the mounting notch 132 is the same as the number of the waste rejection mechanism 18. The detection end of the color sensor 181 can face the corresponding detection notch to detect the color of the upper surface of the tablet transported to the position through the detection notch. The blowing structure 182 can be, for example, a blowing pipe, and a solenoid valve is connected to the blowing pipe, and the solenoid valve is connected to an external air source device; the mounting notch 132 should be connected to the outer peripheral side wall of the feed guide groove 131, and the axial direction of the blowing pipe is arranged along the radial direction of the feed ring 13, and air can be blown into the feed guide groove 131 through the mounting notch 132. The above-mentioned controller is connected to the color sensor 181 and the electromagnetic valve on the blowing pipe. If the color sensor 181 detects that the tablet at this position has the drug-containing layer facing upward, the blowing pipe will not operate and the tablet can pass smoothly; if the boosting layer is facing upward, the electromagnetic valve will be controlled to open, and compressed air will blow out at least one tablet including the unqualified tablet at this position through the blowing pipe, so that it falls back onto the primary turntable 12.

[0051] Since the tablets are small, the air blowing tube may only blow out one tablet, or may blow out the tablets next to the tablet of the qualified color together, without affecting the work efficiency. The blown tablets fall into the primary turntable 12 and will be transported and detected again.

[0052] The specific number of waste rejection mechanisms 18 can be determined according to needs. In the present embodiment, preferably, two waste rejection mechanisms 18 are provided in total. There are two waste rejection mechanisms 18 in total, one of which is arranged near the inlet end of the feed guide groove 131 (i.e., near the upstream of the feed guide groove 131), and the other waste rejection mechanism 18 is arranged near the outlet end of the feed guide groove 131 (i.e., near the downstream of the feed guide groove 131).

[0053] A waste screening can be performed just after the tablets enter the feeding guide groove 131, and another waste screening can be performed when the tablets are about to leave the feeding guide groove 131, which can effectively ensure that all double-layer controlled-release tablets have the drug-containing layer facing upward. The waste screening mechanism 18 is used to screen the colors of the double-layer controlled-release tablets, so that the efficiency of the double-layer controlled-release tablets with the same color side facing upward is higher, which greatly improves the discharge efficiency of the double-layer controlled-release tablets.

[0054] Furthermore, a primary installation groove is provided on the workbench 4, the barrel 11 is rotatably arranged in the primary installation groove, and a primary cover plate 19 is detachably installed on the feeding ring 13; the rotation speed of the barrel 11 is greater than the rotation speed of the primary turntable 12, and both rotate along their respective central axes, and the specific drive can be achieved by any existing method. The above-mentioned primary turntable 12 can adopt a truncated cone structure, for example.

[0055] The feeding guide groove 131 at the bottom of the feeding ring 13 includes a first guide groove and a second guide groove connected along the rotation direction of the barrel 11. The first guide groove connects the bottom surface and the inner ring surface of the feeding ring 13, and is an arc-shaped groove. Its circumference is smaller than the circumference of the feeding ring 13. Its starting end along the rotation direction of the barrel 11 can dock with the highest point of the primary turntable 12, and the end is connected to the second guide groove. The first end of the second guide groove is connected to the end of the first guide groove, and at the connection position, the second guide groove is arranged along the tangent direction of the feeding ring 13, so that when the barrel 11 drives the tablet to move along the feeding guide groove 131, it can be thrown out by the second guide groove under the action of centrifugal force; the second end of the second guide groove is connected to the corresponding transmission channel 21. In an application example, the diameter of the tablet is 9.3mm, the thickness is 4.5-4.9mm, and the weight is 260-280mg. Of course, when using, the matching feeding ring 13 can be replaced according to the size of the tablet to adapt to tablets of more specifications.

[0056] The primary cover plate 19 and the secondary cover plate 34 may both be transparent cover plates, for example, to facilitate observation of the internal working conditions.

[0057] In summary, the feeding and conveying device in this embodiment can accurately and efficiently convey the double-layer controlled-release tablets to the laser punching device, and can ensure that the drug-containing layer of the double-layer controlled-release tablet is punched upward through the laser punching device. It has a simple structural design, easy operation, high conveying efficiency, and is suitable for punching controlled-release tablets of various sizes. It is particularly suitable for large-scale production of double-layer controlled-release tablets in pharmaceutical factories. The feeding and conveying rate of the double-layer osmotic pump controlled-release tablets of the laser punching machine can reach 120,000 tablets / hour. The entire device has the following advantages:

[0058] (1) Two sets of independent primary material unloading components 1 are provided, and the double-layer controlled-release tablets are simultaneously conveyed to the secondary turntable 31 through a set of material conveying structure 2. The set of material conveying structure 2 is a dual-channel. The two sets of independent primary material unloading components 1 each use one of the channels, which greatly improves the conveying efficiency of the double-layer controlled-release tablets.

[0059] (2) During the conveying process, the tablets with the booster layer facing upward in the feeding guide groove 131 are identified by the color sensor 181 and the reject mechanism 18 is triggered to blow the tablets with compressed air to the primary turntable 12 for re-conveying, thereby ensuring that the drug-containing layer of the double-layer controlled-release tablets faces upward into the secondary turntable 31.

[0060] (3) The drug-containing layer and the booster layer of the double-layer controlled-release tablet are of different colors. The color sensor 181 and the waste rejection mechanism 18 can accurately and efficiently transport the double-layer controlled-release tablet to the secondary turntable 31 and ensure that the drug-containing layer of the double-layer controlled-release tablet faces upward, and finally the tablet is punched by a laser punching device.

[0061] The above is only an illustrative embodiment of the utility model, and is not intended to limit the scope of the utility model. Any equivalent changes and modifications made by any technician in the field without departing from the concept and principle of the utility model should fall within the scope of protection of the utility model.

Claims

1. A material feeding and conveying device, characterized in that: It comprises a workbench, on which at least two groups of primary material unloading components and one group of secondary material unloading components are arranged; Each group of the first-stage unloading components comprises a rotatable barrel, a first-stage turntable rotatably arranged at the bottom of the barrel and placed obliquely, and a feed ring buckled on the top of the barrel and fixedly connected to the workbench; the barrel and the first-stage turntable can rotate around their respective axes respectively, the upper end of the first-stage turntable can be flush with the top surface of the barrel, and a feed guide groove is provided on the bottom surface of the feed ring, a part of the feed guide groove is arranged along the circumferential direction of the feed ring, and the extension direction of the other part is arranged along the tangential direction of the feed ring; The secondary unloading assembly includes a distribution chamber and a rotatable secondary turntable which is arranged at the bottom of the distribution chamber and placed horizontally. The outlet end of the feeding guide groove is connected with the distribution chamber through a corresponding transmission channel. The distribution chamber is also connected with an output single channel. The extension direction of the output single channel is arranged along the tangent direction of the secondary turntable.

2. The material feeding and conveying device according to claim 1, characterized in that: A plurality of first jet holes are arranged at intervals along the length direction of the bottom center line of the conveying channel, and the axes of the first jet holes are arranged obliquely upward and face forward in the conveying direction of the conveying channel; A plurality of second jet holes are arranged at intervals along the length direction of the bottom center line of the output single channel, and the axes of the second jet holes are arranged obliquely upward and face forward in the conveying direction of the output single channel.

3. The material feeding and conveying device according to claim 1, characterized in that: A secondary mounting groove is provided on the workbench, a secondary mounting ring is detachably fixedly provided on the workbench surface around the groove position of the secondary mounting groove, a secondary cover plate is detachably installed on the secondary mounting ring, the secondary mounting groove, the secondary mounting ring and the secondary cover plate together form the distribution chamber, and the thickness between the top inner wall of the distribution chamber and the secondary turntable matches the thickness of a single material.

4. The material feeding and conveying device according to claim 3, characterized in that: There are two groups of the first-level material discharge components, the barrels of the two groups of the first-level material discharge components are arranged side by side and rotate in opposite directions, and a material conveying structure is provided between the two groups of the first-level material discharge components, and the material conveying structure has two conveying channels arranged side by side and spaced apart.

5. The material feeding and conveying device according to claim 4, characterized in that: The material conveying structure includes a long strip bottom plate arranged on the workbench, a cover plate is detachably provided on the bottom plate, two long strip grooves are formed on the cover plate, and the long strip grooves can be enclosed with the bottom plate to form the conveying channel.

6. The material feeding and conveying device according to claim 1, characterized in that: Each of the first-level unloading components also includes a unloading hopper, a unloading conveyor belt and a unloading guide structure. The first end of the unloading conveyor belt can be connected to the bottom discharge port of the unloading hopper, the second end of the unloading conveyor belt can be connected to the entrance of the guide channel of the unloading guide structure, and the outlet of the guide channel can extend into the barrel.

7. The material feeding and conveying device according to claim 6, characterized in that: A material level sensor is provided on the feeding ring; the material discharge guide structure includes a vertically connected horizontal protective shell and a vertical protective cylinder, the horizontal protective shell is a groove-shaped structure with an open top and is connected to the bottom of the material discharge hopper, and the material discharge conveyor belt is arranged in the horizontal protective shell; the interior of the vertical protective cylinder constitutes the guide channel.

8. The material feeding and conveying device according to claim 1, characterized in that: At least one waste rejection mechanism is arranged on the workbench along the circumference of the feed ring, each of the waste rejection mechanisms includes a color sensor and an air blowing structure, a detection notch cooperating with the color sensor is arranged on the feed ring, and the detection notch can be communicated with the feed guide groove; the air outlet of the air blowing structure is opposite to the side wall of the feed guide groove and can be communicated with the feed guide groove.

9. The material feeding and conveying device according to claim 8, characterized in that: There are two waste rejection mechanisms in total, one of which is arranged close to the inlet end of the feeding guide groove, and the other is arranged close to the outlet end of the feeding guide groove.

10. The material feeding and conveying device according to claim 1, characterized in that: A primary installation groove is provided on the workbench, the barrel is rotatably arranged in the primary installation groove, and a primary cover plate is detachably installed on the feeding ring; the rotation speed of the barrel is greater than the rotation speed of the primary turntable.

Images