Choking resistant pellet feed apparatus

Abstract

The present application relates to pill production technical field, specifically to a kind of anti-blocking pill feeding equipment, including feeding assembly and metering assembly, the feeding assembly is used to feed to the metering assembly, the metering assembly includes bottom plate and discharge plate and is fixedly installed in up and down distribution, transverse plate is arranged between the bottom plate and the discharge plate, the present application is in through the staggered design of bottom plate and discharge plate, in turn by transverse plate reciprocating movement to interface bottom plate and discharge plate, the batch number of pill is realized discharge work;The present application is also provided with guide hopper and counting sensor, to realize the function of counting by road at discharge, once single road discharge quantity is abnormal, it can be quickly judged that hole is blocked, and the present application can also be automatically guided through pressure rod to block, realizes the closed loop of detection, positioning, dredging;The present application is in the process of pressing material, the guide plate in guide hopper can adjust angle, so that waste can be discharged through discharge port.

Description

Technical Field

[0001] This invention relates to the field of pill production technology, and in particular to a pill feeding device that prevents blockage. Background Technology

[0002] The pill counting device is a key piece of equipment in the pharmaceutical manufacturing and packaging process. Its core function is to accurately deliver pill-shaped drugs into the packaging container according to a preset quantity.

[0003] Unlike traditional mechanical counting devices that are inefficient, such as the pill counting device disclosed in application number CN202322533738.1, there is currently a batch counting and feeding device that achieves efficient pill counting and feeding by dropping a batch of pills through a predetermined number of feeding holes.

[0004] However, in actual operation, the equipment still has some defects. For example, even if the pills are screened before being put into the storage silo, there is still a certain chance that they will stick together in the storage silo. In this case, the stuck pills are easy to get stuck in the material handling holes in the storage plate of the equipment. In this case, the equipment needs to be disassembled and cleared, which is cumbersome and greatly affects production. Therefore, it needs to be improved. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an anti-clogging pellet feeding device to solve the above problems.

[0006] To achieve the above objectives, the present invention provides an anti-clogging pellet feeding device, comprising a feeding component and a metering component, wherein the feeding component is used to feed material into the metering component, and the metering component is used to discharge material in a fixed quantity.

[0007] The material counting assembly includes a base plate and a feeding plate that are distributed vertically and fixedly installed. A transverse sliding plate is provided between the base plate and the feeding plate. The base plate, the transverse sliding plate, and the feeding plate are respectively arranged in an array with vertically penetrating material handling holes, material transfer holes, and feeding holes. The material handling holes and the feeding holes are offset horizontally. The assembly also includes a first cylinder for controlling the transverse sliding plate to move horizontally, thereby switching the material transfer hole between being connected to the material handling hole and being connected to the feeding hole.

[0008] The base plate is provided with a surrounding plate and a cover plate to form a storage bin on the base plate. The material feeding hole is surrounded by the surrounding plate. A sliding plate is provided in the storage bin. The front and rear width of the sliding plate is not less than the diameter of the material feeding hole. Multiple horizontally arranged pressure rods are also slidably connected in the sliding plate. Each pressure rod can be inserted into each of the material feeding holes in a single row. The system also includes a pressing component for controlling the front and rear position of the sliding plate and the up and down position of the pressure rods.

[0009] Preferably, the extrusion assembly includes a control box fixed to the unloading plate, a connecting frame slidably connected to the control box, the connecting frame extending into the storage bin through a transverse groove in the enclosure and connected to the slide plate, a first threaded shaft threadedly connected to the connecting frame rotatably connected to the control box, and a first motor for driving the first threaded shaft to rotate is also fixed on the control box.

[0010] The upper ends of each of the pressure rods are connected by a connecting plate. A second cylinder is fixed inside the connecting frame, and the piston rod inside the second cylinder is connected to the upper side of the connecting plate.

[0011] Preferably, the base plate has two protrusions integrally formed and distributed front and rear, two first cylinders are provided and fixed to the back of the two protrusions respectively, the front and rear sides of the transverse plate are integrally formed with hanging ears, and the hanging ears are provided with fixing seats, and the piston rods in the two first cylinders are respectively connected to the front and rear fixing seats.

[0012] Preferably, the base plate includes a fixed plate and multiple movable plates evenly distributed front and back. Each row of material feeding holes is independently set in one of the movable plates. The right side of the fixed plate is provided with a notch. The movable plates are slidably connected to the notch and arranged front and back. The movable plates are connected to the inner wall of the notch by springs. The left end of the movable plate is also provided with a support plate abutting against the inner wall of the notch. The base plate also includes a control assembly for pushing the movable plate to the right so that the single row of material feeding holes aligns with the discharge hole and the pressure rod.

[0013] Preferably, an abutment plate is fixedly provided on the side of the movable plate extending outside the enclosure. The control assembly includes a drive box disposed on the fixed plate. A third cylinder is fixedly provided on a slider that is slidably connected back and forth inside the drive box. A piston rod inside the third cylinder is connected to a push plate that is directly opposite the abutment plate. A second motor is fixedly provided on the drive box. The second motor is connected to a second threaded shaft that is threadedly connected to the slider.

[0014] Preferably, it also includes a feeding assembly, which includes a plurality of feeding hoppers fixed to the lower side of the feeding plate and distributed at equal distances in the front and back. Each feeding hopper is connected to a single row of feeding holes. The feeding hopper includes a hollow box and a hollow tube. The hollow box is wider at the top and narrower at the bottom, and the hollow tube is connected to the lower end of the hollow box.

[0015] A through groove is provided in the right inclined surface of the hollow box. A mounting rod is connected to the lower side of the feeding plate through a bracket. Multiple counting sensors are fixed on the mounting rod at equal distances from front to back. The counting sensors can count the number of pills rolling down into the hollow box by passing through the through groove.

[0016] Preferably, two mounting plates distributed front and back are fixed on the lower side of the feeding plate, and a rotating shaft passing through each of the hollow boxes is installed between the two mounting plates. A guide plate corresponding to the number of feeding hoppers and located in each of the hollow boxes is fixed on the rotating shaft. The guide plate is inclined to the lower left and faces the left inclined surface inside the hollow box. An arc-shaped guide groove is provided on the upper side of the guide plate. There is a gap between the guide plate and the left inclined surface of the hollow box.

[0017] The sensing area within the counting sensor is located on the left sloping side of the hollow box below the guide plate.

[0018] Preferably, the rotating shaft is rotatably connected between the mounting plates, and a third motor for controlling the angle of the rotating shaft is also fixed on the lower side of the feeding plate;

[0019] Each of the hollow boxes is also provided with an arc panel, which is fixed below the material feed plate. The inner arc surface of the arc panel can be attached to the guide plate raised on the left end. The outer arc surface of the arc panel is fixed with a discharge plate connected to the left inclined surface inside the hollow box, and a discharge port is provided in the left inclined surface of the hollow box at the discharge plate.

[0020] Preferably, the cover plate is provided with a through-feed port;

[0021] The feeding assembly is a vibrating feeder, which includes a fixedly installed storage bin and a vibrating plate installed below the storage bin to vibrate and discharge the material. The vibrating plate is arranged obliquely to the lower right, and a feeding hopper is fixedly provided in the inlet and connected to the right edge of the vibrating plate.

[0022] Preferably, a fourth motor is fixedly mounted on the cover plate, and the output shaft of the fourth motor is connected to a three-arm turntable. The three-arm turntable is located inside the storage bin, and a sweeping brush is provided below the three-arm turntable.

[0023] The fourth motor and the three-arm turntable are arranged in multiple sets at equal distances in front and behind;

[0024] The cover plate can be raised and lowered.

[0025] The beneficial effects of this invention are:

[0026] The present invention achieves batch fixed quantity discharge of pills by means of the staggered design of the bottom plate and the feeding plate, and the reciprocating movement of the transverse plate to connect the bottom plate and the feeding plate in sequence;

[0027] The present invention also includes a feeding hopper and a counting sensor to realize the counting function of each channel at the discharge point. Once the discharge quantity of a single channel is abnormal, the blocked channel can be quickly identified. Furthermore, the present invention can automatically clear the blockage through the pressure rod, realizing a closed loop of detection, positioning, and unblocking.

[0028] In the pressing process of this invention, the guide plate inside the feed hopper can be adjusted in angle so that waste material can be discharged through the discharge port. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the appearance of the present invention;

[0031] Figure 2 This is a schematic diagram of the main view structure within this invention;

[0032] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0033] Figure 4 yes Figure 2 Enlarged view of point B in the middle;

[0034] Figure 5 yes Figure 1 A schematic diagram of the midsole from another perspective;

[0035] Figure 6 yes Figure 5 Enlarged view of point C in the middle;

[0036] Figure 7 yes Figure 2 Enlarged schematic diagram of the central feed hopper;

[0037] Figure 8 yes Figure 7 Enlarged view of point D in the middle;

[0038] Figure 9 This is a schematic diagram of the appearance of the present invention from another perspective.

[0039] The diagram is marked as follows:

[0040] 11. Feeding assembly; 12. Metering assembly; 13. Discharge assembly; 21. Base plate; 22. Transverse plate; 23. Discharge plate; 24. Enclosure plate; 25. Cover plate; 26. Storage bin; 27. First cylinder; 28. Boss; 29. ​​Feed hopper; 41. Slide plate; 42. Pressure rod; 43. Control box; 44. Connecting frame; 45. Connecting plate; 46. Second cylinder; 51. Fixed plate; 52. Movable plate; 53. Abutment plate; 54. Drive box; 61. Feed hopper; 62. Hollow box; 63. Hollow tube; 64. Counting sensor; 65. Guide plate; 66. Third motor; 67. Arc panel; 68. Discharge plate; 71. Storage bin; 72. Vibrating plate; 81. Fourth motor; 82. Three-arm turntable; 91. Connecting plate; 92. Top plate; 93. Fifth motor. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0042] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0043] like Figures 1-9 As shown, an anti-clogging pellet feeding device includes a feeding component 11 and a metering component 12. The feeding component 11 is used to feed material into the metering component 12, and the metering component 12 is used to discharge material in a fixed quantity.

[0044] Specifically, the material counting component 12 includes a base plate 21 and a feeding plate 23 that are vertically distributed and fixedly installed. A transverse sliding plate 22 is provided between the base plate 21 and the feeding plate 23. The base plate 21, the transverse sliding plate 22, and the feeding plate 23 are respectively provided with vertically penetrating material handling holes, material transfer holes, and feeding holes. Figure 3 and Figure 4As shown, the material handling hole and the discharge hole are misaligned left and right. The system also includes a first cylinder 27 for controlling the horizontal movement of the transverse plate 22, thereby switching the material transfer hole between being connected to the material handling hole and being connected to the discharge hole. Specifically, the first cylinder 27 controls the transverse plate 22 to move horizontally. When the transverse plate 22 is at its leftmost position, the material transfer hole is aligned and connected to the material handling hole; when the transverse plate 22 is at its rightmost position (e.g., when the material handling hole is aligned and connected to the material handling hole), the material transfer hole is aligned and connected to the material handling hole. Figure 4 (as shown in the diagram), the transfer hole and the discharge hole are aligned and connected.

[0045] To facilitate the falling of the pellets into the feeding holes within the base plate 21, a surrounding plate 24 and a cover plate 25 are provided on the base plate 21 to form a storage bin 26. The feeding holes are enclosed within the surrounding plate 24. A fourth motor 81 is fixed on the cover plate 25. The output shaft of the fourth motor 81 is connected to a three-arm turntable 82. The three-arm turntable 82 is located within the storage bin 26, and a brush is provided below the three-arm turntable 82. Multiple sets of the fourth motor 81 and the three-arm turntable 82 are arranged at equal distances.

[0046] In this embodiment, as Figure 4 As shown, the thickness of the base plate 21 is not less than twice the diameter of the pills to be transported, that is, the material handling hole can vertically accommodate at least two pills to ensure the continuity of pill transport. The gap between the base plate 21 and the feeding plate 23 is adapted to the diameter of the pills to ensure that one reciprocating motion of the transverse plate 22 can transport a batch of pills. The number of pills in a batch is the same as the number of the material handling hole, the material handling hole and the feeding hole.

[0047] In addition, the diameter of the feeding hole is adapted to the diameter of the pill, while the diameter of the transfer hole and the discharge hole need to be slightly larger than the diameter of the pill to avoid the pill getting stuck in the discharge plate 23.

[0048] The specific quantitative discharge process is as follows:

[0049] The feeding assembly 11 ensures that the bottom of the storage bin 26 is always filled with pellets, and that the pellets are always replenished into the bottom plate 21 (specifically stacked in the sorting hole) by the three-arm turntable 82 driven by the fourth motor 81 and the sweeping brush. Then, when the transverse plate 22 moves to the leftmost side, the sorting hole aligns with the transfer hole, and the pellets at the bottom of the sorting hole are replenished into the transfer hole in the transverse plate 22. After that, the transverse plate 22 moves to the rightmost side, and the transfer hole aligns with the discharge hole. At this time, the pellets in the transverse plate 22 fall through the discharge hole to complete the fixed-quantity discharge of a batch of pellets.

[0050] Furthermore, to prevent the pellets from getting stuck in the base plate 21 (feeding hole) and failing to fall automatically into the transfer hole, a sliding plate 41 is provided in the storage bin 26. The front and rear width of the sliding plate 41 is not less than the diameter of the feeding hole, and the sliding plate 41 can cover a single row of feeding holes. Multiple horizontally arranged pressure rods 42 are also slidably connected inside the sliding plate 41. Each pressure rod 42 can be inserted into each feeding hole in a single row. The sliding plate 41 also includes a pressing component for controlling the front and rear position of the sliding plate 41 and the up and down position of the pressure rods 42. That is, the pressing component can control the sliding plate 41 to move to the feeding hole of the corresponding row, and then press down the pressure rods 42 to make the feeding hole open.

[0051] In order to enable the extrusion assembly to accurately control the slide plate 41 to move to the row of material feeding holes where there is jamming, and also to enable the counting, verification and separation of the pill discharge, a feeding assembly 13 is also included. The feeding assembly 13 includes a plurality of feeding hoppers 61 fixed to the lower side of the feeding plate 23 and distributed at equal distances front and back. Each feeding hopper 61 is connected to a single row of feeding holes. The feeding hopper 61 includes a hollow box 62 and a hollow tube 63. The hollow box 62 is wider at the top and narrower at the bottom, and its front and back width is adapted to the diameter of the pill. The hollow tube 63 is connected to the lower end of the hollow box 62.

[0052] A through groove is provided in the right inclined surface of the hollow box 62. The lower side of the feeding plate 23 is connected to the mounting rod by a bracket, and multiple counting sensors 64 (not fully shown in the figure) are fixed on the mounting rod at equal distances. The counting sensors 64 can count the number of pills rolling down into the hollow box 62 through the through groove. In this embodiment, the counting sensor 64 can be a visual counting sensor or a photoelectric counting sensor. Its counting method is a conventional setting of the prior art and will not be described in detail here.

[0053] In this embodiment, the pressure rod 42 is vertically distributed and horizontally corresponding to the material feeding hole. The specific material pressing process is as follows:

[0054] S101. When the counting sensor 64 senses that the number of pills falling in a single batch in the feeding hopper 61 is not within the preset range, the feeding component 11 stops feeding, and then the storage bin 26 continues to perform multiple fixed-quantity feeding operations of pills until the pills stored in the storage bin 26 are emptied.

[0055] S102. After the pellets in the storage bin 26 are consumed, only the feed hole at the blockage will contain pellets. Then, the pressing component controls the slide plate 41 to move back and forth to the feed hole of the corresponding row. Then, the transverse plate 22 moves to the leftmost position. Then, the pressing component controls the pressure rod 42 to press down and squeeze the pellets blocking the feed hole into the transfer hole. Then, the transverse plate 22 moves to the right and the pellets in the transfer hole are discharged through the discharge plate 23.

[0056] S103, then the pressure rod 42 moves upward and the slide plate 41 resets, the feeding component 11 supplies pellets into the metering component 12, and then continues the normal fixed-quantity feeding operation.

[0057] It should be noted that, since the depth of the feeding hole is not less than the diameter of two pills, the pressure rod 42 can be designed to press down in segments. That is, whenever the pressure rod 42 is inserted into the feeding hole to a depth of one pill diameter, the transverse plate 22 moves right and left once.

[0058] In this embodiment, the extrusion assembly specifically comprises: a control box 43 fixed to the feeding plate 23; a connecting frame 44 slidably connected to the control box 43; the connecting frame 44 extending through a transverse groove in the enclosure plate 24 into the storage bin 26 and connected to the slide plate 41; a first threaded shaft rotatably connected to the connecting frame 44 within the control box 43; and a first motor for driving the first threaded shaft to rotate is also fixed on the control box 43.

[0059] In addition, the upper ends of each of the pressure rods 42 are connected by a connecting plate 45, and a second cylinder 46 is fixed inside the connecting frame 44, and the piston rod inside the second cylinder 46 is connected to the upper side of the connecting plate 45.

[0060] That is, when the first motor rotates, it can drive the slide plate 41 to move back and forth to the blocked single-row material feeding hole through the connecting frame 44. The second cylinder 46 can control the lifting and lowering of the pressure rod 42 to perform the extrusion of the pills. It should be noted that in this embodiment, the bottom of the slide plate 41 is attached to the base plate 21. However, it is also possible that the slide plate 41 is suspended relative to the base plate 21. When the slide plate 41 is suspended relative to the base plate 21, it can prevent the slide plate 41 from crushing the pills that are stuck when it moves.

[0061] In this embodiment, the base plate 21 has two protrusions 28 integrally formed on it, which are distributed front and back, to fix the position of the surrounding plate 24. Specifically, the transverse movement control method of the transverse plate 22 is as follows: two first cylinders 27 are provided and fixed to the back of the two protrusions 28 respectively. The front and rear sides of the transverse plate 22 are integrally formed with hanging ears, and the hanging ears are provided with fixing seats. The piston rod in the first cylinder 27 is connected to the front and rear fixing seats respectively. The method of dual cylinder driving together can make the transverse plate 22 move stably.

[0062] In the above embodiments, the pellets pressed down by the pressure rod 42 have a very small probability of remaining stuck in the transverse plate 22. To solve this problem, in the second embodiment of the anti-clogging pellet feeding device, the feeding plate 23 is designed as a split unit, specifically, as follows: Figure 5 The base plate 21 shown includes a fixed plate 51 and multiple movable plates 52 distributed at equal distances front and back. Each row of material feeding holes is independently set in one of the movable plates 52. The right side of the fixed plate 51 is provided with a notch. The movable plates 52 are slidably connected to the notch and arranged front and back. The movable plates 52 are connected to the inner wall of the notch by springs. The left end of the movable plate 52 is also provided with a support plate against the inner wall of the notch. It also includes a control assembly for pushing the movable plate 52 to the right so that the single row of material feeding holes aligns with the material discharge hole and the pressure rod 42.

[0063] In this second embodiment, the specific pressing process is as follows:

[0064] S201. When the counting sensor 64 senses that the number of pills falling in a single batch in the feeding hopper 61 is not within the preset range, the feeding component 11 stops feeding, and then the storage bin 26 continues to perform multiple fixed-quantity feeding operations of pills until the pills stored in the storage bin 26 are emptied.

[0065] S202. After the pills in the storage bin 26 are consumed, only the feeding holes at the blockage will contain pills. Then, the pressing component controls the slide plate 41 to move to the corresponding row of the movable plate 52. Then, the movable plate 52 moves to the right through the control assembly. Then, the transverse plate 22 moves to the far right. At this time, the feeding holes in the movable plate 52, the transfer holes in the transverse plate 22, and the discharge holes in the discharge plate 23 are aligned. Then, the pressing component controls the pressing rod 42 to press down and push down the pills that are blocked in the feeding holes and discharge them through the transfer holes and the discharge holes.

[0066] S203, then the pressure rod 42 moves upward and the slide plate 41 resets, and the movable plate 52 moves to the left and resets. The feeding component 11 then supplies pellets into the metering component 12, and then continues the normal fixed-quantity feeding operation.

[0067] It should be noted that in the first and second embodiments described above, the left and right positions of the pressure rod 42 are different to adapt to the two pressing methods of different processes. In the first embodiment, the left and right positions of the pressure rod 42 are adapted to the material feeding hole at a fixed position, while in the second embodiment, the left and right positions of the pressure rod 42 are adapted to the material discharge hole at a fixed position.

[0068] The specific method for controlling the left and right positions of the movable plate 52 is as follows: Figure 5 As shown, an abutment plate 53 is fixedly provided on the upper side of the movable plate 52 extending outside the enclosure 24. The control assembly includes a drive box 54 disposed on the fixed plate 51. A third cylinder is fixedly provided on a slider that is slidably connected back and forth inside the drive box 54. A piston rod inside the third cylinder is connected to a push plate that is directly opposite the abutment plate 53. A second motor is fixedly provided on the drive box 54. The second motor is connected to a second threaded shaft that is threadedly connected to the slider.

[0069] The second motor can be energized and drive the slider to move back and forth, thereby controlling the front and back position of the third cylinder. When the piston rod in the third cylinder extends, it can push the abutment plate 53 to make the movable plate 52 at the corresponding position move to the right. When the piston rod of the third cylinder retracts, the spring can drive the movable plate 52 to move to the left to reset.

[0070] It should be noted that the spring has a preload so that the movement of the three-arm turntable 82 and the sweeping brush will not cause the movable plate 52 to shake.

[0071] To ensure that the pills falling into the feed plate 23 roll down in sequence so that they can be accurately counted by the counting sensor 64, such as... Figure 6 As shown, two mounting plates distributed front to back are fixed on the lower side of the feeding plate 23. A rotating shaft passing through each of the hollow boxes 62 is installed between the two mounting plates. Guide plates 65, corresponding in number to the feeding hoppers 61 and located in each of the hollow boxes 62, are fixed on the rotating shaft. The guide plates 65 are inclined to the lower left and face the left slope inside the hollow box 62. An arc-shaped guide groove is provided on the upper side of the guide plate 65 to guide the movement of the pills. There is a gap between the guide plate 65 and the left slope of the hollow box 62.

[0072] With the above design, the pills falling from the feeding plate 23 are guided by the guide plate 65 and roll down sequentially through the gap. The sensing area in the counting sensor 64 is located on the left inclined surface of the hollow box 62 below the guide plate 65, so as to accurately count the number of pills.

[0073] Furthermore, in order to allow the pellet waste that falls or is pressed down in the above-mentioned pressing process to be discharged through other outlets, the rotating shaft is rotatably connected between the mounting plates, and a third motor 66 for controlling the angle of the rotating shaft is also fixed on the lower side of the feeding plate 23.

[0074] Each of the hollow boxes 62 is also provided with an arc panel 67, which is fixed below the material feed plate 23. The inner arc surface of the arc panel 67 can be attached to the guide plate 65 raised on the left end. The outer arc surface of the arc panel 67 is fixed with a discharge plate 68 connected to the left inclined surface inside the hollow box 62, and a discharge port is provided in the left inclined surface of the hollow box 62 at the discharge plate 68.

[0075] When the pressing operation is performed, the third motor 66 controls the rotating shaft to rotate at a certain angle so that the inner arc surface of the arc panel 67 is in contact with the guide plate 65. At this time, the pellets rolling down the guide plate 65 will move along the discharge plate 68 and finally be discharged through the discharge port.

[0076] The specific feeding method in the storage bin 26 is that the cover plate 25 is provided with a feeding port that runs vertically through it.

[0077] like Figure 9 As shown, the feeding assembly 11 is a vibrating feeder. The vibrating feeder includes a fixedly installed storage bin 71 and a vibrating plate 72 installed below the storage bin 71 to vibrate and discharge material. The vibrating plate 72 is obliquely arranged to the lower right, and a feeding hopper 29 is fixedly provided in the inlet and connected to the right edge of the vibrating plate 72.

[0078] The vibrating plate 72 can vibrate to cause the pills in the storage bin 71 to roll onto the vibrating plate 72 and finally be fed into the storage bin 26 through the feed hopper 29.

[0079] In a third embodiment of the anti-clogging pellet feeding device, the cover plate 25 is designed to be liftable to avoid interference from the sweeping brush bristles when the slide plate 41 moves. In this embodiment, a connecting plate 91 is fixed on the cover plate 25, and a top plate 92 is connected to the boss 28 through a vertical rod passing through the connecting plate 91. A fifth motor 93 is fixed on the top plate 92, and the output shaft of the fifth motor 93 is connected to a third threaded shaft threaded to the connecting plate 91.

[0080] In this embodiment, during the pressing operation, before the slide plate 41 begins to move, the cover plate 25 moves upward to protect the brush bristles and the slide plate 41, and to avoid interfering with the movement of the slide plate 41.

[0081] In this embodiment, the connecting plate 91 is provided with two sets distributed in the front and rear, and the third threaded shaft is provided with two shafts in the front and rear. The fifth motor 93 directly drives one of the third threaded shafts to rotate, and a synchronous pulley is provided on each of the two threaded shafts. The two synchronous pulleys are connected by a synchronous belt.

[0082] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0083] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A pellet feeding device for preventing blockage, comprising a feeding assembly (11) and a metering assembly (12), characterized in that: The feeding component (11) is used to feed material into the metering component (12), and the metering component (12) is used to discharge material in a fixed quantity. The material counting component (12) includes a base plate (21) and a feeding plate (23) that are distributed vertically and fixedly installed. A transverse plate (22) is provided between the base plate (21) and the feeding plate (23). The base plate (21), the transverse plate (22) and the feeding plate (23) are respectively arranged in an array with vertically penetrating material handling holes, material transfer holes and feeding holes. The material handling holes and the feeding holes are offset left and right. The component also includes a first cylinder (27) for controlling the transverse plate (22) to move left and right, thereby switching the material transfer hole between being connected to the material handling hole and being connected to the feeding hole. The base plate (21) is provided with a surrounding plate (24) and a cover plate (25) to form a storage bin (26) on the base plate (21). The material feeding hole is surrounded by the surrounding plate (24). The storage bin (26) is provided with a sliding plate (41). The front and rear width of the sliding plate (41) is not less than the diameter of the material feeding hole. The sliding plate (41) is also slidably connected with a plurality of horizontally arranged pressure rods (42). Each pressure rod (42) can be inserted into each of the single-row material feeding holes. The sliding plate (41) also includes a pressing component for controlling the front and rear position of the sliding plate (41) and the up and down position of the pressure rods (42).

2. The anti-clogging pellet feeding device according to claim 1, characterized in that: The extrusion assembly includes a control box (43) fixed on the feed plate (23). A connecting frame (44) is slidably connected in the control box (43). The connecting frame (44) extends into the storage bin (26) through the transverse groove in the enclosure plate (24) and is connected to the slide plate (41). A first threaded shaft is rotatably connected in the control box (43) and threaded to the connecting frame (44). A first motor for driving the first threaded shaft to rotate is also fixed on the control box (43). The upper ends of each of the pressure rods (42) are connected by a connecting plate (45). A second cylinder (46) is fixed inside the connecting frame (44), and the piston rod inside the second cylinder (46) is connected to the upper side of the connecting plate (45).

3. The anti-clogging pellet feeding device according to claim 1, characterized in that: The base plate (21) has two protrusions (28) integrally formed on the front and back. There are two first cylinders (27), which are fixed on the back of the two protrusions (28) respectively. The front and back sides of the transverse plate (22) are integrally formed with hanging ears, and the hanging ears are provided with fixing seats. The piston rods in the two first cylinders (27) are respectively connected to the front and back fixing seats.

4. The anti-clogging pellet feeding device according to claim 1, characterized in that: The base plate (21) includes a fixed plate (51) and multiple movable plates (52) distributed at equal distances front and back. Each row of material feeding holes is independently set in one of the movable plates (52). The right side of the fixed plate (51) is provided with a notch. The movable plates (52) are slidably connected to the notch and arranged front and back. The movable plates (52) are connected to the inner wall of the notch by springs. The left end of the movable plate (52) is also provided with a support plate against the inner wall of the notch. It also includes a control assembly for pushing the movable plates (52) to the right so that the single row of material feeding holes aligns with the discharge hole and the pressure rod (42).

5. The anti-clogging pellet feeding device according to claim 4, characterized in that: An abutment plate (53) is fixedly provided on the upper side of the movable plate (52) extending outside the enclosure (24). The control assembly includes a drive box (54) disposed on the fixed plate (51). A third cylinder is fixedly provided on the slider that is slidably connected back and forth inside the drive box (54). The piston rod inside the third cylinder is connected to a push plate facing the abutment plate (53). A second motor is fixedly provided on the drive box (54). The second motor is connected to a second threaded shaft that is threadedly connected to the slider.

6. The anti-clogging pellet feeding device according to claim 1, characterized in that: It also includes a feeding assembly (13), which includes a plurality of feeding hoppers (61) fixed to the lower side of the feeding plate (23) and distributed at equal distances in the front and back. Each feeding hopper (61) is connected to a single row of feeding holes. The feeding hopper (61) includes a hollow box (62) and a hollow tube (63). The hollow box (62) is wider at the top and narrower at the bottom, and the hollow tube (63) is connected to the lower end of the hollow box (62). A through groove is provided in the right inclined surface of the hollow box (62). The lower side of the feeding plate (23) is connected to an installation rod by a bracket. Multiple counting sensors (64) are fixed on the installation rod at equal distances from front to back. The counting sensors (64) can count the number of pills rolling out of the hollow box (62) through the through groove.

7. The anti-clogging pellet feeding device according to claim 6, characterized in that: The lower side of the feeding plate (23) is also fixed with two mounting plates distributed in front and behind. Between the two mounting plates is a rotating shaft that passes through each of the hollow boxes (62). The rotating shaft is fixed with guide plates (65) corresponding to the number of feeding hoppers (61) and located in each of the hollow boxes (62). The guide plates (65) are inclined to the lower left and face the left slope of the hollow box (62). An arc-shaped guide groove is provided on the upper side of the guide plate (65). There is a gap between the guide plate (65) and the left slope of the hollow box (62). The sensing area within the counting sensor (64) is located on the left inclined surface inside the hollow box (62) below the guide plate (65).

8. The anti-clogging pellet feeding device according to claim 7, characterized in that: The rotating shaft is rotatably connected between the mounting plates, and a third motor (66) for controlling the angle of the rotating shaft is also fixed on the lower side of the feeding plate (23). Each of the hollow boxes (62) is also provided with an arc panel (67), which is fixed below the material feed plate (23). The inner arc surface of the arc panel (67) can be attached to the guide plate (65) raised on the left end. The outer arc surface of the arc panel (67) is fixed with a discharge plate (68) connected to the left inclined surface inside the hollow box (62), and a discharge port is provided in the left inclined surface of the hollow box (62) at the discharge plate (68).

9. The anti-clogging pellet feeding device according to claim 1, characterized in that: The cover plate (25) is provided with a through-feed port; The feeding assembly (11) is a vibrating feeder. The vibrating feeder includes a fixedly installed storage bin (71) and a vibrating plate (72) installed below the storage bin (71) to vibrate and discharge material. The vibrating plate (72) is obliquely arranged to the lower right. The feed inlet is fixedly provided with a feed hopper (29) that is connected to the right edge of the vibrating plate (72).

10. The anti-clogging pellet feeding device according to claim 2, characterized in that: A fourth motor (81) is fixed on the cover plate (25). The output shaft of the fourth motor (81) is connected to a three-arm turntable (82). The three-arm turntable (82) is located in the storage bin (26), and a sweeping brush is provided below the three-arm turntable (82). The fourth motor (81) and the three-arm turntable (82) are arranged in multiple sets at equal distances in front and behind; The cover plate (25) is adjustable.

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