Tablet filling device

Abstract

The utility model provides a tablet filling device, in particular to a tablet filling device capable of accurately counting tablets and preventing blockage. The device comprises a tablet hopper, a metering mechanism, a detection mechanism and an auxiliary discharging mechanism. According to the device, accurate metering of tablets is achieved through the metering plate, loading quantity detection is conducted through a wafer-feeler lever-sensor system, an auxiliary discharging mechanism composed of an ejector rod and an air blowing plate is arranged, defective products are effectively recognized, the filling error is reduced, and the problems of material blocking and blocking in the tablet filling process are solved. The device has the characteristics of high metering precision, stable operation, convenience in maintenance and the like, and can be widely applied to capsule filling equipment in the pharmaceutical industry.

Description

Technical Field

[0001] This utility model relates to the field of capsule filling technology, specifically a tablet filling device. Background Technology

[0002] In the pharmaceutical industry, tablet filling and capsule filling is a crucial step in drug production. Traditional tablet filling and capsule filling devices suffer from problems such as complex structure, low filling accuracy, and inconsistent tablet quantities (due to insufficient tablet metering precision, resulting in excess or insufficient tablets). These issues not only affect drug production efficiency but may also lead to unstable drug quality, causing economic losses for pharmaceutical companies. Therefore, developing a tablet filling and capsule filling device with a simple structure, high filling accuracy, and smooth material feeding is of significant practical importance. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings and deficiencies of the existing technology and to provide a tablet filling device. The technical solution adopted by this utility model is as follows: A tablet filling device, comprising the following working units:

[0004] A tablet storage unit, comprising a tablet hopper and a hopper body fixing plate;

[0005] The metering execution unit includes a tablet metering plate, a metering plate fixing plate, and a drive mechanism;

[0006] The fill quantity detection assembly includes contacts, contact rods, and sensors.

[0007] The auxiliary feeding unit includes a push rod and an air blowing plate;

[0008] The metering execution unit drives the metering plate to reciprocate below the tablet hopper discharge pipe and above the capsule dispensing device via a drive mechanism.

[0009] The dosage detection component includes a detection slot on the metering plate, a contact piece that cooperates with the detection slot, and a torsion spring that drives the contact piece to maintain its embedded position in the detection slot. When the number of tablets in the metering plate is greater than or less than the standard amount, the contact piece rotates upward or downward, thereby triggering an alarm of the position detection device. It can identify the number of tablets in the capsule and remove abnormal products through a sorting mechanism.

[0010] Furthermore, the contact piece is hinged to the contact piece mounting block by a torsion spring, and the contact piece includes an upper end extending obliquely upward and a lower end extending obliquely downward. The upper end of the contact piece is inductively engaged with the contact rod, and the lower end of the contact piece extends into the detection groove.

[0011] Furthermore, in the metering execution unit, the tablet metering plate and the metering plate fixing plate are connected by a guide rail slide pair, and the cam drives the rocker arm to drive the guide rod to achieve reciprocating motion.

[0012] In the dosage detection unit, the contact plate and the contact rod are mechanically linked. The displacement of the contact rod is detected by the sensor to determine whether the tablet dosage is accurate.

[0013] Preferably, in the auxiliary feeding unit, the top rod is provided with radial air blowing holes, which cooperate with the air blowing plate to realize the tablet feeding and cleaning functions.

[0014] Preferably, the auxiliary feeding unit includes an air blowing nozzle.

[0015] Finally, the distance between the tablet hopper and the discharge pipe is adjustable, and the distance between the discharge pipe outlet and the working surface of the metering plate is ≤2mm.

[0016] The beneficial effects of this invention are as follows: This device achieves precise tablet measurement through a metering plate, utilizes a contact plate-contact rod-sensor system for filling quantity detection, and is equipped with an auxiliary feeding mechanism consisting of a push rod and an air blowing plate, effectively identifying defective products, reducing filling errors, and solving the problems of material jamming and clogging during tablet filling. This invention features high metering accuracy, stable operation, and convenient maintenance, and can be widely applied to capsule filling equipment in the pharmaceutical industry. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0018] Figure 1 This is a schematic diagram of the structure of Example 1;

[0019] Figure 2 This is a schematic diagram of the component structure for testing;

[0020] Figure 3 This is a top view of the measuring plate;

[0021] Tablet hopper 1051; hopper body fixing plate 1052; sensor 1053; contact rod 1054; air blowing plate 1055; contact piece 1056; top rod 1057; tablet metering plate 1058; detection groove 10581; metering hole 10582;

[0022] Tablet cam 10510; Tablet swing arm 10511; Adjusting rod 10512; Guide rod 10513; Tablet base 10514; Guide rail slide pair 10515; Metering plate fixing plate 10516; Slider 10517; Feed tube 10518;

[0023] Frame platform 2; lower molding die 1101. Detailed Implementation

[0024] To make the objectives, technical solutions and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings.

[0025] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0026] Example 1

[0027] like Figure 1-3 As shown, a tablet-filling capsule device includes:

[0028] Tablet storage unit: The tablet hopper 1051 is fixed to the hopper body fixing plate 1052 by bolts, and there is a gap between the discharge pipe 10518 and the upper surface of the metering plate 1058.

[0029] Metering execution unit: The tablet metering plate 1058 is provided with a metering hole 10582, which is driven by the cam 10510 to move laterally back and forth relative to the feeding tube 10518 of the tablet storage unit (so that the metering hole is moved from position A to position B).

[0030] Fill quantity detection unit: The contact piece 1056 is hinged to the contact rod 1054 and a reset torsion spring is set at the connection. The sensor is in sensing cooperation with the upper end of the contact piece.

[0031] Auxiliary feeding unit: The push rod 1057 is used to extend into the metering hole at position B to assist the tablets in falling, and is provided with several air blowing holes to blow away the powder.

[0032] Specifically, the drive is achieved through a cam and a slider: the tablet cam 10510 drives the tablet swing arm 10511 to move up and down, and the tablet swing arm 10511 drives the guide rod 10513 to move up and down via the adjusting rod 10512. The slider 10517 mounted on the guide rod 10513 also moves up and down. The groove of the slider 10517 cooperates with the cam follower bearing on the metering plate fixing plate 10516, driving the metering plate fixing plate 10516 and the tablet metering plate 1058 to move back and forth on the guide rail slide pair 10515: the tablet metering plate 1058 moves backward and stops at the position of the feeding pipe 10518, with the metering hole of the tablet metering plate 1058 aligned with the outlet of the feeding pipe 10518 to receive the tablets; it moves forward and stops at the position of the lower mold 1101, with the metering hole of the tablet metering plate 1058 aligned with the hole of the lower mold 1101, filling the tablets into the capsule body in the lower mold 1101.

[0033] The tablet counting principle of the tablet filling device is volume counting. The thickness of the tablet metering plate 1058 is designed according to the number of tablets contained in the capsule. The tablet hopper 1051 stores the tablets and is mounted on the hopper fixing plate 1052. The tablets fall sequentially along the feed pipe 10518. The distance between the feed pipe 10518 and the tablet metering plate 1058 can be adjusted to be very close, so that the number of tablets is consistent each time the tablet metering plate 1058 receives the tablets.

[0034] This device is designed with a contact plate 1056, which slides within the detection groove 10581. When the number of tablets in the metering hole of the tablet metering plate 1058 is correct, the height of the tablets will raise the contact plate 1056 and push open the contact rod 1054. The contact rod 1054 will then contact the sensor 1053, giving the system a qualified signal.

[0035] If there is one or more tablets missing, the tablet height will not be able to raise the contact plate 1056 to open the contact rod 1054. In this case, the sensor 1053 will send an unqualified signal to the system, and the system will reject the tablet through the discharge station 107.

[0036] This device is designed with a push rod 1057 and an air blowing plate 1055 connected and mounted on a hopper fixing plate 1052. The hopper fixing plate 1052 moves up and down under the action of a guide rod 10513. When the tablet metering plate 1058 moves above the hole in the lower mold 1101, the groove of the slider 10517 still has travel, the guide rod 10513 continues to descend, and the push rod 1057 and the air blowing plate 1055 also continue to descend, pushing the tablets downward out of the hopper fixing plate 1052 and into the capsule body, preventing uneven feeding. The push rod 1057 is designed with air blowing holes to sweep outwards, cleaning up any tablet fragments that may be generated, preventing foreign objects from affecting the tablet quantity during the return feeding.

[0037] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A tablet filling apparatus characterized by, The application relates to a capsule filling device, which comprises the following parts: a tablet storage unit, which comprises a tablet hopper and a hopper fixing plate; a metering execution unit, which comprises a tablet metering plate, a metering plate fixing plate and a driving mechanism; a quantity detection assembly, which comprises a contact piece, a contact rod and a sensor, an auxiliary discharging unit, which comprises a top rod and a blowing plate; the metering execution unit drives the tablet metering plate to reciprocate below the tablet hopper discharge pipeline and above the capsule separating device through the driving mechanism; the quantity detection assembly comprises a detection groove arranged on the metering plate, a rotatable contact piece matched with the detection groove and a torsional spring, which makes the contact piece have a tendency to be embedded in the detection groove.

2. The tablet filling apparatus according to claim 1, characterized in that: the contact piece is hinged to a contact piece mounting block through the torsional spring, and the contact piece comprises an upwardly extending upper end part and a downwardly extending lower end part; the upper end part of the contact piece is inductive cooperation with the contact rod; and the lower end part of the contact piece extends into the detection groove.

3. The tablet filling apparatus of claim 1, wherein: in the metering execution unit, the tablet metering plate (1058) is connected with the metering plate fixing plate (10516) through a guide rail sliding seat pair (10515), and a cam (10510) drives a swing lever (10511) to realize the reciprocating movement of a guide rod (10513).

4. The tablet filling apparatus of claim 2, wherein: in the quantity detection assembly, the contact piece (1056) is mechanically linked with the contact rod (1054), and the displacement of the contact rod is detected through the sensor (1053).

5. The tablet filling apparatus of claim 1, wherein: in the auxiliary discharging unit, the top rod (1057) is provided with radial blowing holes.

6. The tablet filling apparatus of claim 1, wherein: the auxiliary discharging unit comprises a blowing nozzle.

7. A tablet filling apparatus according to any one of claims 1 to 6, wherein: the distance between the tablet hopper (1051) and the discharging pipeline (10518) is adjustable, and the distance between the discharging pipeline outlet and the working surface of the metering plate is less than or equal to 2mm.

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