Single-layer tablet removing device of double-layer tablet press

Abstract

The utility model relates to the technical field of medicine and pharmaceutical equipment, and discloses a single-layer tablet removing device for a double-layer tablet press, which comprises a single-layer tablet sucking mechanism and a single-layer tablet collecting mechanism, the single-layer tablet sucking mechanism comprises a tablet sucking nozzle, an adjusting gasket and a tablet sucking pipe, and the single-layer sheet collecting mechanism comprises a waste sheet collecting box, a sealing cover and a filter screen. The single-layer tablet removing device is simple in structure, low in cost, convenient to control and small in overall occupied space, the problem that single-layer tablets are not completely removed in the prior art is solved, the single-layer tablets are prevented from being mixed into finished tablets, the risk that products are unqualified is reduced, and the medicine quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of medicine and pharmaceutical equipment, and in particular to a single-layer tablet rejecting device for a double-layer tablet press. Background Art

[0002] The rotary tablet press is a common equipment used to produce pharmaceutical solid dosage tablets. Its working principle is to place materials that meet certain requirements in the middle die, and press them into tablets through the upper and lower punches. The finished tablets are ejected from the middle die hole through the lower punch, blocked by the tablet discharge baffle, and driven by the rotation of the middle plate, fall into the tablet discharge channel of the tablet discharge box for collection. The double-layer tablet press combines two sets of pressing and tablet discharge mechanisms to press two materials into one. In order to ensure the quality of the drug, the weight of each layer of tablets needs to be controlled when pressing double-layer tablets. The specific method is to sample and weigh the first layer of tablets first, and then sample and weigh the double-layer tablets. When the first layer of tablets is sampled, the tablet press starts the rejection program to reject the single-layer tablets of the second layer.

[0003] The sheet discharge channel of the sheet discharge box body in the prior art is mostly a baffle-type material door structure of a single box body, which realizes the conversion of the sheet discharge channel and completes the tablet sampling and waste rejection functions by driving the baffle plate controlled by a cylinder or a torque motor. In this baffle-type material door structure, the finished tablets and waste tablets share the same section of the sheet discharge channel, which is prone to incomplete waste rejection. That is, when pressing double-layer tablets, when the first layer of tablets is sampled, the single-layer waste tablets on the other side will be adsorbed on the sheet discharge channel due to static electricity and other reasons. When the waste rejection is completed, the single-layer waste tablets will be mixed into the finished tablets as the finished tablets push, resulting in unqualified drug quality. Therefore, the sheet discharge channel of the prior art cannot fully meet the waste rejection requirements of pressing double-layer tablets, and it is necessary to explore new waste rejection methods. Summary of the invention

[0004] In view of the shortcomings of the existing waste rejection devices, the purpose of the utility model is to provide a single-layer tablet rejection device for a double-layer tablet press, which can solve the problem of incomplete single-layer tablet rejection in the prior art and reduce the risk of unqualified products.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A single-layer tablet rejecting device for a double-layer tablet press comprises: a single-layer tablet suction mechanism, comprising a tablet suction nozzle, an adjusting gasket and a tablet suction tube, wherein the tablet suction nozzle is arranged above a finished tablet discharge baffle of the tablet press; and a single-layer tablet collecting mechanism, comprising a waste tablet collecting box, a sealing cover and a filter screen.

[0007] Preferably, the opening of the suction nozzle is circular.

[0008] Preferably, the ratio of the opening diameter of the suction nozzle to the diameter of the single-layer sheet is (1.2-1.5):1.

[0009] Preferably, the film suction tube is arc-shaped, and its inner diameter is less than 3 cm.

[0010] Preferably, an adjusting gasket is provided at the connection between the film suction nozzle and the upper panel of the feeder, and two sides of the adjusting gasket are respectively in contact with the film suction nozzle and the upper panel of the feeder.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The single-layer tablet rejection device for a double-layer tablet press described in the utility model only needs to add a single-layer tablet suction mechanism above the finished tablet discharge baffle, and the mechanism is connected to the vacuum cleaner through the single-layer tablet collection mechanism. The vacuum cleaner is directly controlled to be turned on and off by the tablet press waste rejection system, so that when the first layer of tablets are sampled, the second layer of single-layer tablets can be sucked away to achieve the rejection effect. The utility model has a simple structure, low cost, and convenient control. The overall space occupied by the equipment is small. The single-layer tablets and the finished tablets are independent collection paths, which can prevent the single-layer tablets from mixing with the finished tablets, reduce the risk of unqualified products, and ensure the quality of medicines. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall schematic diagram of an embodiment of the utility model;

[0014] Figure 2 It is an enlarged structural schematic diagram of a single-layer sheet suction mechanism according to an embodiment of the utility model;

[0015] Figure 3 It is a cross-sectional structural diagram of a single-layer sheet collecting mechanism according to an embodiment of the utility model.

[0016] In the figure: 11. film suction nozzle, 12. adjusting gasket, 13. film suction tube, 21. waste film collection box, 22. sealing cover, 23. filter screen, 24. air inlet, 25. air outlet. DETAILED DESCRIPTION

[0017] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0018] like Figures 1 to 3As shown, a single-layer tablet rejection device for a double-layer tablet press comprises: a single-layer tablet suction mechanism, which is composed of a tablet suction nozzle 11, an adjusting gasket 12 and a tablet suction pipe 13. The tablet suction nozzle 11 is arranged above the finished tablet discharge baffle of the tablet press, and has a pin hole on the side connected to the positioning pin of the upper panel of the feeder. An adjusting gasket 12 is arranged between the pin hole and the upper panel of the feeder. One end of the tablet suction pipe 13 is connected to the tablet suction nozzle 11, and the other end is connected to the air inlet 24 of the waste tablet collection box 21. The single-layer tablet collection mechanism comprises a waste tablet collection box 21, a sealing cover 22 and a filter 23, as well as an air inlet 24 arranged on one side of the waste tablet collection box 21 and an air outlet 25 arranged on the sealing cover. The filter 23 is vertically hoisted in the waste tablet collection box 21, and the sealing cover 22 covers the filter 23. The air inlet 24 is connected to the tablet suction pipe 13, and the air outlet 25 is connected to the dust collector.

[0019] The working process of this utility model:

[0020] According to the thickness of the compressed tablet, a suitable adjusting gasket 12 is selected and installed between the pin hole of the tablet suction nozzle and the upper panel of the feeder. When compressing double-layer tablets, when the tablet press control panel starts the sampling program of the first layer of tablets, the tablet press waste rejection program is started at the same time, and the single-layer tablet rejection vacuum cleaner is controlled to turn on. The first layer of tablets is ejected from the middle die hole, and the second layer of material is filled into the middle die hole. After being pressed by the pressing wheel, the second layer of single-layer tablets passes through the finished tablet discharge baffle, is sucked by the upper tablet suction nozzle 11, passes through the tablet suction tube 13, and falls into the waste tablet collection box 21 through the air inlet 24. The air passes through the filter 23 and enters the vacuum cleaner from the air outlet 25. During the continuous sampling process of the first layer of tablets, the second layer of single-layer tablets can be continuously sucked into the waste tablet collection box 21, achieving a continuous waste rejection effect. When the sampling program ends, the waste rejection program stops at the same time, and the single-layer tablet rejection vacuum cleaner is controlled to stop running, and the single-layer tablet rejection ends. During the entire production process, single-layer sheets and finished sheets maintain independent collection paths, which can prevent single-layer sheets from mixing into finished sheets.

[0021] As a preferred embodiment of the present invention: the opening of the sucking nozzle 11 is circular, and the ratio of the sucking nozzle opening diameter to the single-layer tablet diameter is (1.2-1.5):1; an adjusting gasket 12 is provided between the sucking nozzle 11 and the upper panel of the feeder, and the distance between the sucking nozzle 11 and the tablet press disc surface can be adjusted by changing the adjusting gasket 12 of different thicknesses; the sucking tube 13 is curved in an arc shape, and the inner diameter is less than 3 cm. The above preferred embodiments can better gather the airflow, reduce resistance, and increase suction to achieve the best waste rejection effect.

[0022] The above-described embodiments of the utility model are only used to help explain the utility model, and do not describe all the details in detail, nor limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can understand and use the utility model well. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

Claims

1. A single-layer tablet rejection device for a double-layer tablet press, characterized in that: The single-layer tablet rejecting device of the double-layer tablet press comprises: a single-layer tablet suction mechanism, comprising a tablet suction nozzle, an adjusting gasket and a tablet suction tube, wherein the tablet suction nozzle is arranged above a finished tablet discharge baffle of the tablet press; and a single-layer tablet collecting mechanism, comprising a waste tablet collecting box, a sealing cover and a filter screen.

2. The single-layer tablet rejection device for a double-layer tablet press according to claim 1, characterized in that: The opening of the sheet suction nozzle is circular.

3. The single-layer tablet rejection device for a double-layer tablet press according to claim 1, characterized in that: The ratio of the opening diameter of the sheet suction nozzle to the diameter of the single-layer sheet is (1.2-1.5):

1.

4. The single-layer tablet rejection device for a double-layer tablet press according to claim 1, characterized in that: The film suction tube is arc-shaped, and its inner diameter is less than 3 cm.

5. The single-layer tablet rejection device for a double-layer tablet press according to claim 1, characterized in that: An adjusting gasket is arranged at the connection between the film suction nozzle and the upper panel of the feeder, and two sides of the adjusting gasket are respectively in contact with the film suction nozzle and the upper panel of the feeder.

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