Automatic capsule feeding device for capsule filling machine

Abstract

The utility model discloses an automatic capsule feeding device for a capsule filling machine, and belongs to the technical field of capsule particle production and processing equipment. Comprising a hopper, a blanking device, a blanking device driving assembly, a capsule clamping assembly, a capsule pushing channel, a pushing claw, a capsule falling monitoring assembly and an air injection assembly. A capsule pushing channel is arranged below an opening in the lower end of the blanking device, a pushing claw is movably arranged in the capsule pushing channel, and the pushing claw is used for turning around capsules falling from the blanking device and entering the capsule pushing channel through an inlet of the capsule pushing channel, so that capsule bodies face forwards; a capsule falling monitoring assembly is arranged on one side of an inlet of the capsule pushing channel and used for monitoring whether a capsule body faces downwards or a capsule cap faces downwards. The upper side and the lower side in the pushing claw are each provided with a set of air injection assembly, and the air injection assemblies are used for spraying air to the capsules according to the judgment result of the capsule falling monitoring assembly and assisting the pushing claw to turn around the capsules so that capsule bodies can face forwards. The capsule shell turning device solves the problem that part of capsule shells cannot be turned successfully due to the fact that only pushing of a pushing pawl is relied at present.

Description

Technical Field

[0001] The utility model belongs to the technical field of capsule particle production and processing equipment, and particularly relates to an automatic capsule sowing device for a capsule filling machine. Background Art

[0002] Hard capsules are a dosage form made by adding a certain amount of drug and excipients to form a uniform powder or granules, which is then filled into hollow capsule shells. Fully automatic capsule filling machines are designed to fill hollow capsule shells with drug. Equipped with molds of different specifications, they can simultaneously perform operations such as capsule seeding, separation, filling, rejecting, locking, discharging finished products, and module cleaning. The automatic seeding process involves placing hollow capsule shells in a hopper. As the feeder moves up and down, the hollow capsule shells enter the feeder one by one and fall out of the lower opening. The falling hollow capsule shells are adjusted by a pusher, always facing forward, and are pushed horizontally to the right edge of the directional capsule seat. The vertically moving presser then flips the capsule shell 90°, pushing it vertically into the capsule plate hole.

[0003] The key to ensuring that the capsule body is always facing downward during placement is the push claw's ability to turn the capsule shell. This is because the capsule may enter the dropper with the body facing downward or the cap facing downward. In either case, the push claw must be used to turn the capsule shell so that the capsule faces forward. The push claw uses its protruding claw tip to act on the middle of the capsule, pushing the capsule forward as it moves forward. The principle is to exploit the slight weight difference between the capsule and the cap. When the claw tip acts on the middle of the capsule, the capsule always tips forward. However, relying solely on the claw tip and the weight difference between the capsule itself may not always ensure that the capsule faces forward. A small number of capsules fail to turn successfully, resulting in the capsule cap facing downward during placement. Utility Model Content

[0004] The present invention provides an automatic capsule-seeding device for a capsule filling machine. The device includes a capsule image acquisition component disposed adjacent to the outlet at the lower end of a feeder for determining whether the capsule is facing downwardly with the cap or the body after it falls from the feeder. An air jet channel is also disposed within a push claw, with air jets formed in the concave arc grooves on the upper and lower sides of the claw tip at the head end. After the capsule shell falls from the feeder, in addition to being turned around by the claw tip, the device also controls the upper or lower concave arc groove air jets to spray air into the capsule shell, depending on whether the capsule is facing downwardly with the cap or the body when it falls, to assist in turning around the capsule and ensure that the capsule body always faces forward. The device also minimizes the possibility of the capsule cap facing forward and then facing downward after seeding. The present invention solves the problem of current automatic capsule-seeding machines, which rely solely on the movement of the push claw when turning the capsule shell, resulting in some capsule shells failing to turn around, with the cap facing forward and facing downward after seeding.

[0005] In order to achieve the above technical objectives, the present invention is implemented through the following technical solutions:

[0006] An automatic capsule placing device for a capsule filling machine includes: a hopper, a dropper, a dropper driving assembly, a capsule clamping assembly, a capsule pushing channel, a pushing claw, a capsule dropping monitoring assembly, and an air jet assembly;

[0007] A dropper is movably provided at the discharge port below the hopper; a capsule channel is provided inside the dropper, and openings at both ends of the capsule channel are respectively provided on the upper and lower end surfaces of the dropper;

[0008] The upper end opening of the dropper is located in the hopper, and the dropper can move in the vertical direction relative to the hopper;

[0009] The dropper driving assembly is provided on one side of the dropper, and the dropper driving assembly is used to drive the dropper to move up and down in the vertical direction;

[0010] A capsule pushing channel is provided below the opening at the lower end of the dropper, and a pushing claw is movably provided in the capsule pushing channel. The pushing claw is used to turn around the capsule that falls from the dropper and enters the capsule pushing channel through the entrance of the capsule pushing channel so that its capsule body faces forward;

[0011] A capsule pressing claw is movably provided on the other side of the dropper, and the capsule pressing claw is used to press the capsule vertically into the capsule sowing plate;

[0012] A capsule drop monitoring component is provided at one side of the capsule pushing channel entrance, and the capsule drop monitoring component is used to monitor whether the capsule dropped from the dropper faces downwards or the capsule cap faces downwards;

[0013] A set of air-jet components is provided on the upper and lower sides of the pushing claw, and the air-jet components are used to spray gas into the capsule according to the judgment result of the capsule-falling monitoring component, so as to assist the pushing claw in turning the capsule so that the capsule body faces forward;

[0014] The bag drop monitoring component and the air injection component are both communicatively connected to the PLC.

[0015] Preferably, a cylinder piston push rod is provided at the rear end of the push claw, and the cylinder piston push rod is used to drive the push claw to reciprocate back and forth;

[0016] The front end of the pushing claw is provided with a protruding thrust claw tip structure, and the thrust claw tip acts on the middle part of the capsule body to push the capsule down and complete the U-turn;

[0017] The upper and lower sides of the thrust claw tip are both arranged as an inwardly concave arc groove structure.

[0018] Preferably, the jet assembly includes: a jet channel, a jet pipe and an air jet pump;

[0019] The jet channel is opened in the push claw, the inlet end of the jet channel is opened at the lower end of the push claw, and the outlet end of the jet channel is opened on the concave arc groove structure at the front end of the push claw;

[0020] The inlet end of the jet channel is connected to one end of the jet pipe, and the other end of the jet pipe is connected to an air jet pump.

[0021] Preferably, the concave arc groove structures on the upper and lower sides of the front end of the push claw are each provided with a set of air injection components;

[0022] A first jet channel is provided inside the push claw corresponding to the concave arc groove structure on the upper side, an inlet end of the first jet channel is connected to one end of the jet pipe, and the other end of the jet pipe is connected to a first air jet pump;

[0023] A second jet channel is opened inside the push claw corresponding to the concave arc groove structure on the lower side, and the inlet end of the second jet channel is connected to one end of the jet pipe, and the other end of the jet pipe is connected to the second air jet pump.

[0024] Preferably, the bag-falling monitoring component is configured as a high-speed capture camera;

[0025] The high-speed capture camera is arranged on the left side of the entrance of the bladder pushing channel;

[0026] The outer wall of the lower end opening of the dropper facing the high-speed capture camera is shorter than the outer wall on the opposite side.

[0027] Preferably, the dropper driving assembly includes: a slide bar, a moving block, a cam, and a cam matching block;

[0028] The upper end of the slide bar is arranged on the hopper base on the left side below the hopper;

[0029] A moving block is movably provided on the slide bar; a side of the moving block facing the blanking device is connected to the blanking device;

[0030] A cam matching block is provided on the side of the moving block facing away from the blanking device;

[0031] A cam is provided below the cam matching block; the lower surface of the cam matching block is always in contact with the outer peripheral surface of the cam;

[0032] A motor is provided at the center of the back side of the cam, and the motor drives the cam to rotate;

[0033] When the cam rotates to a maximum diameter and is in a vertical state, the cam matching block and the moving block drive the blanking device to move upward to the highest point.

[0034] Preferably, a cylinder box is provided near the lower right side of the dropper;

[0035] A pneumatic telescopic rod is provided in the cylinder box;

[0036] The telescopic end of the pneumatic telescopic rod extends from the bottom of the cylinder box, and a capsule pressing claw is provided on the telescopic end; the pneumatic telescopic rod drives the capsule pressing claw to move up and down in the vertical direction;

[0037] The capsule pressing claw is located at one side of the capsule pushing channel outlet.

[0038] Preferably, a slot is provided in the lower end of the capsule pressing claw;

[0039] The inner bottom of the hollow groove is connected to the upper end of the elastic member;

[0040] The lower end of the elastic member is connected to the upper end of a movable column, and the lower end of the movable column is connected to the pressing end; the tip of the pressing end is an arc blunt end.

[0041] Preferably, a card bag assembly is movably provided on the side of the cylinder box facing the blanking device;

[0042] The card bag assembly includes: a card bag rod and an elastic member;

[0043] The capsule rod is in an "L" shape;

[0044] The upper end of the card bag rod is rotatably arranged on the back plate of the machine through a rotating shaft pin;

[0045] Two elastic members are provided near the upper and lower sides of the card bag rod and between the card bag rod and the cylinder box;

[0046] A through hole is provided on the side wall of the dropper, which is close to the lower end opening of the dropper and faces the card bag rod;

[0047] The horizontal end of the capsule clamping rod can pass through the through hole to clamp the last capsule at the lower end of the dropper.

[0048] Preferably, the upper end opening of the dropper is an inwardly concave slope structure.

[0049] The beneficial effects of the utility model are:

[0050] The utility model provides an automatic capsule-feeding device for a capsule filling machine, wherein a group of jet assemblies are respectively arranged on the concave arc groove structures on the upper and lower sides of the front end inside a pushing claw; a high-speed capture camera is arranged on the left side of the entrance of the capsule-pushing channel to capture capsules dropped from a dropper and judge whether the capsule is facing toward the capsule body or the capsule cap; when the capsule falls into the capsule-pushing channel, the pushing claw pushes it forward to make it turn around, and at the same time, according to the judgment of the falling direction of the capsule, the corresponding jet assembly is controlled to spray air above or below the capsule to assist the pushing claw and ensure that the capsule body always faces forward after the capsule turns around, thereby reducing the error of the capsule cap facing forward that may occur when the pushing claw turns the capsule alone.

[0051] The upper opening of the dropper is an inwardly concave slope structure, so when the dropper moves downward, a capsule falls out of the lower outlet of the dropper; the capsule in the hopper can more easily enter the capsule channel in the dropper through the upper opening of the dropper.

[0052] The lower end of the capsule pressing claw is connected to the pressing end through an elastic member, and the tip of the pressing end is a blunt arc end; in this way, when the capsule pressing claw presses the capsule down to the capsule sowing plate, the capsule shell will not be punctured; and the elastic effect of the elastic member prevents direct hard contact between the pressing end and the capsule, further protecting the capsule shell from being damaged by the pressing end of the capsule pressing claw. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0054] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0055] Figure 2 This is a schematic diagram of the structure of the push claw and air jet assembly of the utility model;

[0056] Figure 3 1 is a schematic diagram of the connection structure of the lower pressure end of the capsule pressing claw;

[0057] In the accompanying drawings, the structural names represented by the reference numerals are:

[0058] 1-hopper, 101-hopper base, 2-dropper, 3-slide rod, 301-spring sleeve, 4-moving block, 401-cam matching block, 5-cam, 6-cylinder box, 7-pneumatic telescopic rod, 8-capsule pressing claw, 801-empty slot, 802-movable column, 803-downward pressure end, 9-capsule clamping rod, 901-elastic part, 10-high-speed capture camera, 11-capsule pushing channel, 12-push claw, 1201-thrust claw tip, 1202-first jet channel, 1203-second jet channel, 13-cylinder piston push rod, 14-first air jet pump, 1401-jet pipe, 15-second air jet pump. DETAILED DESCRIPTION

[0059] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0060] Example 1

[0061] An automatic capsule placing device for a capsule filling machine includes: a hopper 1, a dropper 2, a dropper driving assembly, a capsule clamping assembly, a capsule pushing channel 11, a pushing claw 12, a capsule dropping monitoring assembly, and an air jet assembly;

[0062] like Figure 1 As shown, a discharge port is provided below the hopper 1 , and a hopper base 101 is provided below the discharge port; the empty capsule shells to be sown are placed in the hopper 1 , waiting to enter the dropper 2 .

[0063] The middle part of the feeder 2 is set as a hollow capsule channel, the inner diameter of the capsule channel is slightly larger than the outer diameter of the capsule cap. When the capsule shell passes through the capsule channel, the side wall of the capsule cap will contact the inner wall of the capsule channel, but the side wall of the capsule body will not contact the side wall of the capsule channel; the capsule shell can slide down the capsule channel normally; the upper and lower ends of the capsule channel extend to the upper and lower end surfaces of the feeder 2 respectively, and form an upper end opening and a lower end opening on the upper and lower end surfaces of the feeder 2 respectively.

[0064] The upper end opening of the dropper 2 enters the hopper 1 from the discharge port below the hopper 1 and is located inside the hopper 1. The entire dropper 2 can move in the vertical direction relative to the hopper 1; capsule shells are arranged in the capsule channel of the dropper 2. As the capsule shells are output from the lower end opening of the dropper 2, the capsule shells in the hopper 1 also enter the dropper 2 from the upper end opening.

[0065] As a preferred embodiment, in order to make it easier for the capsule shells in the hopper 1 to enter the feeder 2 from the upper end opening of the feeder 2, as shown in FIG. Figure 1 As shown, the upper end opening of the feeder 2 is set to be a concave slope structure. Compared with the upper end opening structure in a horizontal plane, the capsule shell in the hopper 1 is more likely to enter the concave slope upper end opening structure and thus enter the capsule channel of the feeder 2.

[0066] The dropper 2 moves downward, and the lowest capsule will fall out of the dropper 2 from the lower opening and enter the capsule pushing channel 11. At the same time, a capsule in the hopper 1 will enter the dropper 2 from the upper opening. The vertical movement of the dropper 2 is controlled by the dropper drive assembly.

[0067] like Figure 1 As shown, the dropper driving assembly in this embodiment includes: a slide bar 3, a moving block 4, a cam 5, and a cam matching block 401;

[0068] The upper end of the slide bar 3 is arranged on the hopper base 101 on the left side below the hopper 1; a moving block 4 is movably arranged on the slide bar 3; the side of the moving block 4 facing the dropper 2 is fixedly connected to the dropper 2; a cam matching block 401 is arranged below the moving block 4 on the side facing away from the dropper 2; a cam 5 is arranged below the cam matching block 401; the lower surface of the cam matching block 401 is always in contact with the outer peripheral surface of the cam 5;

[0069] A motor is provided at the center of the back side of the cam 5, and the motor drives the cam 5 to rotate; the cam 5 is an elliptical structure, and as the cam 5 rotates, the cam matching block 401 will rise or fall with the cam 5, and at the same time, the moving block 4 will also rise or fall with the cam matching block 401; driven by the moving block 4, the blanking device 2 is raised or lowered in the vertical direction;

[0070] When the cam 5 rotates to the maximum diameter of the cam 5 and is in a vertical state, the cam matching block 401 and the moving block 4 drive the dropper 2 to move up to the highest point; on the contrary, when the cam 5 rotates to the minimum diameter of the cam 5 and is in a vertical state, the dropper 2 drops to the lowest point.

[0071] The lower end opening of the dropper 2 is directly opposite to the entrance of the capsule pushing channel 11 below. The dropper 2 descends, and the lowest capsule shell in the dropper 2 falls vertically into the capsule pushing channel 11; a pushing claw 12 is movably provided in the capsule pushing channel 11, and a cylinder piston push rod 13 is provided at the rear end of the pushing claw 12, and the cylinder piston push rod 13 can be used to drive the pushing claw 12 to move back and forth in the capsule pushing channel 11; the pushing claw 12 pushes the capsule shell forward to turn the capsule shell around and always keep the capsule body of the capsule shell facing forward; and the direction in which the capsule shell enters the dropper 2 is random, and the capsule body may face downward or the capsule cap may face downward, so how to turn it around under the action of the pushing claw 12 so that the capsule body of the capsule shell always faces forward, that is, toward the exit end of the capsule pushing channel 11; this embodiment The working principle of the pushing claw of the embodiment is the same as that of the existing capsule broadcasting mechanism, as follows: the capsule shell falls vertically into the capsule broadcasting channel 11 from the entrance of the capsule broadcasting channel, and the front end of the pushing claw 12 is provided with a protruding thrust claw tip 1201, which always acts on the middle part of the capsule body of the capsule shell. Due to the diameter and weight difference between the capsule cap end and the capsule body end of the capsule shell, the capsule shell turns around in the process of the pushing claw 12 pushing the capsule shell forward, and the overall lighter capsule body end tilts forward, so that the capsule body is always facing forward, that is, toward the outlet end of the capsule broadcasting channel 11; when the pushing claw 12 pushes the capsule shell to the outlet end of the capsule broadcasting channel 11, the capsule shell flips 90 degrees under the action of the capsule pressing claw 8, and the capsule body falls downward into the broadcasting plate, completing the broadcasting;

[0072] like Figure 1 As shown, a cylinder box 6 is provided below the right side of the dropper 2, and a pneumatic telescopic rod 7 is provided inside the cylinder box 6. The telescopic end of the pneumatic telescopic rod 7 extends from the bottom of the cylinder box 6 and is located outside the cylinder box 6. A capsule pressing claw 8 is provided on the telescopic end of the pneumatic telescopic rod 7. The pneumatic telescopic rod 7 drives the capsule pressing claw 8 to move in the vertical direction. When the capsule pressing claw 8 moves downward, it contacts the capsule shell at the exit end of the capsule pushing channel. As the capsule pressing claw 8 moves downward, the capsule shell is turned 90 degrees and falls into the capsule sowing tray. The lower end of the capsule pressing claw 8 is provided with a protruding downward pressing end made of rubber material and having an obtuse arc angle. In this way, when the downward pressing end of the capsule pressing claw 8 contacts the capsule shell, it will not puncture the capsule shell.

[0073] When the dropper 2 moves downward, the lowest capsule falls into the capsule pushing channel 11, and at the same time, a capsule shell enters the upper entrance end; and when the dropper 2 moves upward, the pushing claw 12 starts to move forward, pushing the capsule shell in the capsule pushing channel 11 forward; and when the dropper 2 moves upward, the capsule shell in the capsule channel of the dropper 2 cannot fall down. If you want the inner capsule shell not to fall down, you need to clamp the lowest capsule shell; Figure 1 As shown, the cylinder box 6 is provided with a card bag assembly movably on one side facing the blanking device 2;

[0074] The card capsule assembly includes: a card capsule rod 9 and an elastic member 901; the card capsule rod 9 is an "L"-shaped structure; the upper end of the card capsule rod 9 is rotatably mounted on the back plate of the machine via a rotating pin; the entire card capsule rod 9 can rotate around the rotating pin;

[0075] Two elastic members are provided near the upper and lower sides of the capsule rod 9 and between the capsule rod 9 and the cylinder box 6. The elastic members here can be set as springs or elastic sheets, the purpose of which is to maintain the stability of the entire capsule rod 9 during movement, so that it can stably clamp the capsule shell. A through hole is provided on the side wall near the lower end of the dropper 2 and facing the capsule rod 9. The horizontal end of the capsule rod 9 can pass through the through hole to clamp the last capsule at the lower end of the dropper 2. When the dropper 2 moves downward, the upper side of the through hole will hit the capsule rod 9. As the dropper 2 moves downward, the capsule rod 9 will begin to tilt, and the end will detach from the bottom capsule shell, at which time the capsule shell will fall. When the dropper 2 moves upward, when the through hole moves to the capsule rod 9, the capsule rod 9 can enter from the through hole and clamp on the bottom capsule shell.

[0076] In the existing capsule dispensing device, only the thrust claw tip 1201 at the front end of the pushing claw 12 acts on the middle part of the capsule body, and utilizes the weight difference between one end of the capsule cap and one end of the capsule body to make the capsule shell fall over in the process of pushing the capsule shell forward, and always keep the capsule body facing forward; however, it cannot guarantee success every time, and in some cases, the capsule cap will still face forward.

[0077] Therefore, in this embodiment, a capsule drop monitoring component is provided on the left side of the entrance of the capsule pushing channel 11. The capsule drop monitoring component is configured as a high-speed capture camera 10, which is used to capture the image of the capsule shell falling from the outlet of the dropper into the capsule pushing channel 11. The PLC processes the image information to determine whether the falling capsule shell is facing downwards or the capsule cap is facing downwards. The judgment result serves as the basis for the following air jet component to assist the pushing claw 12 to turn the capsule shell around.

[0078] Because the high-speed capture camera 10 is located on the left side of the dropper 2, in order to enable the high-speed camera 10 to accurately and completely capture the image of the capsule shell when it falls, it is necessary to set the outer wall of the lower end opening of the dropper facing the high-speed capture camera 10 to be shorter than the outer wall on the opposite side; through this gap, the high-speed capture camera 10 can completely capture the image of the capsule shell falling;

[0079] Two sets of jet components are set in the push claw 12, respectively arranged on the upper and lower sides of the push claw 12, and the jet components include: a jet channel, a jet pipe and an air jet pump;

[0080] The thrust claw tip 1201 provided at the front end of the push claw 12 is provided with a concave arc groove structure on both the upper and lower sides. A first jet passage 1202 is provided inside the push claw corresponding to the concave arc groove structure on the upper side. The inlet end of the first jet passage 1202 is connected to one end of the jet pipe 1401, and the other end of the jet pipe 1401 is connected to the first air jet pump 14.

[0081] A second air jet channel 1203 is formed inside the push claw corresponding to the concave arc groove structure on the lower side. The inlet end of the second air jet channel 1203 is connected to one end of the air jet tube 1401, and the other end of the air jet tube 1401 is connected to the second air jet pump 15. The air jet tube 1401 is a serpentine folding tube that can automatically extend and retract. A through groove is formed on the bottom surface of the push passage 11, through which the air jet tube 1401 passes, allowing the air jet tube 1401 to move back and forth under the push passage 11 and follow the push claw 12.

[0082] The capsule shell that falls into the capsule pushing channel 11 from the lower end opening of the dropper 2 is captured by the high-speed capture camera 10, and the image information is fed into the PLC. The PLC processes the image information and determines the falling direction of the capsule shell at this time; if the capsule shell is facing downward, the PLC will send a control instruction to the second air jet pump 15, and spray gas to the capsule body located below through the second jet channel 1203. Under the dual cooperation of the gas thrust and the pushing claw 12, the capsule shell is accurately turned around so that the capsule body is always facing forward; if the capsule shell is facing downward, the PLC will send a control instruction to the first air jet pump 14, and spray gas to the capsule body located above through the first jet channel 1202. Under the dual cooperation of the gas thrust and the pushing claw 12, the capsule shell is accurately turned around so that the capsule body is always facing forward.

[0083] Example 2

[0084] Based on Example 1, in Example 1, although the pressing end 803 of the capsule pressing claw 8 that contacts the capsule shell is made of rubber material and is designed as a blunt arc structure; when it presses down the capsule shell, it still has a complete hard contact with the capsule shell, which may cause the capsule shell to be concave;

[0085] So if Figure 3 As shown, in this embodiment, a slot 801 is formed in the lower end of the pressure claw 8; the upper end of an elastic member 901 is connected to the inner bottom of the slot 801; the lower end of the elastic member 901 is connected to the upper end of a movable column 802, and the lower end of the movable column 802 is connected to the pressing end 803; there is no connecting structure between the movable column 802 and the slot 801; the tip of the pressing end 803 is also configured as a blunt arc end and is made of rubber. The elastic member 901 can be a spring structure;

[0086] Because an elastic member 901 is provided above the pressing end 803, under the action of the elastic member 901, after the pressing end 803 contacts the capsule shell, the elastic member 901 acts as a buffer to avoid hard contact between the pressing end 803 and the capsule shell, and to avoid the pressing end 803 from deforming the capsule shell as much as possible.

[0087] Example 3

[0088] Based on Example 1, in Example 1, the moving block 4 that controls the movement of the blanking device 2 is movably arranged on the slide bar 3 and is rotated by the cam 5 to achieve up and down movement;

[0089] In this embodiment, a limit block is provided at the lower end of the slide bar 3, and a spring sleeve 301 is provided between the limit block and the lower bottom surface of the moving block 4. The spring sleeve 301 is sleeved on the slide bar 3, the upper end of the spring sleeve 301 is connected to the lower bottom surface of the moving block 4, and the lower end of the spring sleeve 301 is connected to the limit block;

[0090] When the moving block 4 moves upward, the spring sleeve 301 is stretched and deformed. When the moving block 4 moves downward, the deformed spring sleeve 301 can assist the moving block 4 in moving downward during the process of deformation recovery.

[0091] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0092] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, numerous modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic capsule placing device for a capsule filling machine, characterized in that: Including: hopper, dropper, dropper drive assembly, capsule pushing channel, push claw, capsule dropping monitoring assembly, and air jet assembly; A dropper is movably provided at the discharge port below the hopper; a capsule channel is provided inside the dropper, and openings at both ends of the capsule channel are respectively provided on the upper and lower end surfaces of the dropper; The upper end opening of the dropper is located in the hopper, and the dropper can move in the vertical direction relative to the hopper; The dropper driving assembly is provided on one side of the dropper, and the dropper driving assembly is used to drive the dropper to move up and down in the vertical direction; A capsule pushing channel is provided below the opening at the lower end of the dropper, and a pushing claw is movably provided in the capsule pushing channel. The pushing claw is used to turn around the capsule that falls from the dropper and enters the capsule pushing channel through the entrance of the capsule pushing channel so that its capsule body faces forward; A capsule pressing claw is movably provided on the other side of the dropper, and the capsule pressing claw is used to press the capsule vertically into the capsule sowing plate; A capsule drop monitoring component is provided at one side of the capsule pushing channel entrance, and the capsule drop monitoring component is used to monitor whether the capsule dropped from the dropper faces downwards or the capsule cap faces downwards; A set of air-jet components is provided on the upper and lower sides of the pushing claw, and the air-jet components are used to spray gas into the capsule according to the judgment result of the capsule-falling monitoring component, so as to assist the pushing claw in turning the capsule so that the capsule body faces forward; The bag drop monitoring component and the air injection component are both communicatively connected to the PLC.

2. The automatic capsule placing device for a capsule filling machine according to claim 1, characterized in that: A cylinder piston push rod is provided at the rear end of the push claw, and the cylinder piston push rod is used to drive the push claw to reciprocate back and forth; The front end of the pushing claw is provided with a protruding thrust claw tip structure, and the thrust claw tip acts on the middle part of the capsule body to push the capsule down and complete the U-turn; The upper and lower sides of the thrust claw tip are both arranged as an inwardly concave arc groove structure.

3. The automatic capsule placing device for a capsule filling machine according to claim 1, characterized in that: The jet assembly includes: a jet channel, a jet pipe and an air jet pump; The jet channel is opened in the push claw, the inlet end of the jet channel is opened at the lower end of the push claw, and the outlet end of the jet channel is opened on the concave arc groove structure at the front end of the push claw; The inlet end of the jet channel is connected to one end of the jet pipe, and the other end of the jet pipe is connected to an air jet pump.

4. The automatic capsule placing device for a capsule filling machine according to claim 3, characterized in that: A set of air injection components is correspondingly provided on the concave arc groove structures on the upper and lower sides of the front end of the push claw; A first jet channel is provided inside the push claw corresponding to the concave arc groove structure on the upper side, an inlet end of the first jet channel is connected to one end of the jet pipe, and the other end of the jet pipe is connected to a first air jet pump; A second jet channel is opened inside the push claw corresponding to the concave arc groove structure on the lower side, and the inlet end of the second jet channel is connected to one end of the jet pipe, and the other end of the jet pipe is connected to the second air jet pump.

5. The automatic capsule placing device for a capsule filling machine according to claim 1, characterized in that: The bag-falling monitoring component is configured as a high-speed capture camera; The high-speed capture camera is arranged on the left side of the entrance of the bladder pushing channel; The outer wall of the lower end opening of the dropper facing the high-speed capture camera is shorter than the outer wall on the opposite side.

6. The automatic capsule placing device for a capsule filling machine according to claim 1, characterized in that: The dropper drive assembly includes: a slide bar, a moving block, a cam, and a cam matching block; The upper end of the slide bar is arranged on the hopper base on the left side below the hopper; A moving block is movably provided on the slide bar; a side of the moving block facing the blanking device is connected to the blanking device; A cam matching block is provided on the side of the moving block facing away from the blanking device; A cam is provided below the cam matching block; the lower surface of the cam matching block is always in contact with the outer peripheral surface of the cam; A motor is provided at the center of the back side of the cam, and the motor drives the cam to rotate; When the cam rotates to a maximum diameter and is in a vertical state, the cam matching block and the moving block drive the blanking device to move upward to the highest point.

7. The automatic capsule placing device for a capsule filling machine according to claim 1, characterized in that: A cylinder box is provided near the lower right side of the dropper; A pneumatic telescopic rod is provided in the cylinder box; The telescopic end of the pneumatic telescopic rod extends from the bottom of the cylinder box, and a capsule pressing claw is provided on the telescopic end; the pneumatic telescopic rod drives the capsule pressing claw to move up and down in the vertical direction; The capsule pressing claw is located at one side of the capsule pushing channel outlet.

8. The automatic capsule placing device for a capsule filling machine according to claim 7, characterized in that: A slot is provided in the lower end of the capsule pressing claw; The inner bottom of the hollow groove is connected to the upper end of the elastic member; The lower end of the elastic member is connected to the upper end of a movable column, and the lower end of the movable column is connected to the pressing end; the tip of the pressing end is an arc blunt end.

9. The automatic capsule placing device for a capsule filling machine according to claim 7, characterized in that: A card bag assembly is movably provided on the side of the cylinder box facing the blanking device; The card bag assembly includes: a card bag rod and an elastic member; The capsule rod is in an "L" shape; The upper end of the card bag rod is rotatably arranged on the back plate of the machine through a rotating shaft pin; Two elastic members are provided near the upper and lower sides of the card bag rod and between the card bag rod and the cylinder box; A through hole is provided on the side wall of the dropper, which is close to the lower end opening of the dropper and faces the card bag rod; The horizontal end of the capsule clamping rod can pass through the through hole to clamp the last capsule at the lower end of the dropper.

10. The automatic capsule placing device for a capsule filling machine according to claim 1, characterized in that: The upper end opening of the dropper is in an inwardly concave slope structure.

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