A device for automatically rejecting waste tablets from a tablet press

Abstract

The utility model discloses a device of automatic rejecting waste tablet of tablet press belongs to the technical field of medicine production, including tablet press body and the discharge pipe of installing at the front end of tablet press body, the front end of tablet press body and the below fixed mounting of discharge pipe have the device platform body, the utility model discloses, and the integral design of rejecting subassembly, tablet press body, device platform body has realized the full process automation from tablet discharge, conveying, detection to waste tablet rejection, need not manual intervention, and the manual cost and detection error are reduced greatly, and the production efficiency is improved significantly, whole structure passes through the cooperative cooperation of conveyer belt, flow guide groove and stabilizes tablet conveying path, and the accurate detection of industrial camera is combined with electric control valve, exhaust pipe's quick rejection action, forms " conveying - detection - rejection " high -efficient linkage mechanism, avoids the misjudgment caused by the tablet deviation again, prevents the damage to qualified tablet in the rejecting process, guarantees product quality stability.

Description

Technical Field

[0001] This utility model belongs to the field of pharmaceutical production technology, specifically relating to a device for automatically removing waste tablets from a tablet press. Background Technology

[0002] Tablet presses are core equipment in the pharmaceutical, food, and chemical industries. They are mainly used to compress powdered or granular materials into tablets and are widely used in the production of pharmaceuticals, health products, effervescent tablets, mothballs, and other products. The core working principle is as follows: the feeding mechanism evenly fills the material into the die holes of the die plate, and then the upper and lower punches apply pressure to the material in the die holes under the action of the pressurization system, so that it is tightly bound and finally forms tablets with a fixed shape, weight, and hardness.

[0003] Existing tablet presses may not properly process the powder in the early stages, resulting in uneven particle size distribution, with some particles being too large or too small. This can cause inconsistent filling density of the powder in the mold, leading to problems such as insufficient hardness and loose tablets after pressing. Therefore, a waste tablet removal device is needed.

[0004] However, existing waste tablet rejection devices cannot achieve full automation of the entire process from tablet discharge, transportation, detection to waste tablet rejection during use. Manual intervention is often required to complete the identification and sorting of waste tablets, which not only significantly increases labor costs, but also easily leads to increased detection errors due to the subjectivity of human judgment and operational deviations, seriously restricting production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a device for automatically removing waste tablets from a tablet press, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic tablet rejection device for a tablet press, comprising a tablet press body and a discharge pipe installed at the front end of the tablet press body. A device platform is fixedly installed at the front end of the tablet press body and below the discharge pipe. A rejection chamber is formed at the top of the device platform. A rejection assembly is provided inside the rejection chamber. The rejection assembly includes a conveyor belt rotatably connected inside the rejection chamber. A baffle is fixedly connected to the upper part of the conveyor belt and to the right side wall of the rejection chamber. A guide groove is formed between the baffle and the left side wall of the rejection chamber. A support frame is fixedly installed directly above the guide groove. An industrial camera is fixedly installed inside the support frame. An electrically controlled valve is fixedly installed at the top of the baffle. An air inlet pipe is fixedly connected to the upper end of the electrically controlled valve. An exhaust pipe is fixedly connected to the left side of the electrically controlled valve. A receiving chamber is formed on the left inner wall of the rejection chamber. A receiving box is slidably connected inside the receiving chamber.

[0007] In a preferred embodiment, the industrial camera is located directly above the guide channel, and the exhaust pipe is located at the front end of the guide channel and is at the same horizontal level as the receiving chamber.

[0008] In a preferred embodiment, a partition assembly is provided on the left inner wall of the rejection cavity. The partition assembly includes a transmission cavity formed on the left inner wall of the rejection cavity. The transmission cavity has two receiving grooves arranged in parallel front to back, and a rack is slidably connected inside each of the two receiving grooves.

[0009] In a preferred embodiment, a gear is rotatably connected between the racks and inside the transmission cavity, the gear meshing with the racks, and a servo motor is fixedly installed on the top left side of the device platform.

[0010] In a preferred embodiment, the transmission end of the servo motor is connected to a gear drive, and the front rack moves in the opposite direction to the rear rack.

[0011] In a preferred embodiment, a barrier cover is fixedly installed on the top of the receiving chamber, a control panel is fixedly installed on the top of the device platform, and a support leg is fixedly connected to the bottom of the device platform.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention features an integrated design of the rejection component, tablet press body, and device platform, achieving full automation of the entire process from tablet discharge, conveying, detection, and rejection of defective tablets. This eliminates the need for manual intervention, significantly reducing labor costs and detection errors, and dramatically improving production efficiency. The entire structure stabilizes the tablet conveying path through the coordinated operation of the conveyor belt and guide trough. Combined with the precise detection of an industrial camera and the rapid rejection action of electrically controlled valves and exhaust pipes, it forms a highly efficient "conveyance-detection-rejection" linkage mechanism. This avoids missed detections due to tablet misalignment and prevents damage to qualified tablets during rejection, ensuring product quality stability.

[0013] This invention features a separator component that is structurally compatible with the rejection chamber and conveyor belt, forming a deep synergy with the tablet conveying process. Through the reciprocating extension and retraction of the rack, it effectively achieves uniform spacing of tablets, avoiding mutual squeezing and collision during conveying and ensuring overall conveying stability. This component integrates a servo motor and gear transmission structure, achieving automated spacing and protection without manual operation, further enhancing the overall automation level of the equipment and reducing the risk of batch confusion caused by human intervention. At the same time, the storage design of the rack and the storage chute avoids interference with the conveying process when not in operation, ensuring the smoothness and continuity of the overall equipment operation and improving the standardization of the production process. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the device platform component of this utility model; Figure 3 This is a three-dimensional schematic diagram of the device platform component of this utility model; Figure 4 This utility model Figure 3 A magnified 3D structural diagram showing details at point A.

[0015] In the diagram: 1. Tablet press body; 2. Device platform; 3. Rejection chamber; 4. Separating component; 5. Barrier cover; 6. Control panel; 7. Support leg; 101. Discharge pipe; 301. Conveyor belt; 302. Baffle; 303. Guide channel; 304. Support frame; 305. Industrial camera; 306. Electrically controlled valve; 307. Air inlet pipe; 308. Exhaust pipe; 309. Receiving chamber; 3010. Receiving box; 401. Transmission chamber; 402. Receiving chute; 403. Rack; 404. Gear; 405. Servo motor. Detailed Implementation

[0016] The present invention will be further described below with reference to the embodiments.

[0017] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0018] Please see Figure 1-4This utility model provides an automatic tablet rejection device for a tablet press, including a tablet press body 1 and a discharge pipe 101 installed at the front end of the tablet press body 1. A device platform 2 is fixedly installed at the front end of the tablet press body 1 and below the discharge pipe 101. A rejection cavity 3 is opened on the top of the device platform 2. A rejection assembly is set inside the rejection cavity 3. The rejection assembly includes a conveyor belt 301 rotatably connected inside the rejection cavity 3. A baffle 302 is fixedly connected to the upper part of the conveyor belt 301 and the right side wall of the rejection cavity 3. The rear end of the baffle 302 is inclined, which can effectively guide the flow of the medicine. A guide groove 303 is formed between the baffle 302 and the left side wall of the rejection cavity 3. The continuous conveying of the conveyor belt 301, combined with the directional effect of the guide groove 303, can ensure the stability of the tablet movement path, avoid tablet deviation and missed detection, and improve the detection accuracy of the industrial camera 305. A device is fixedly installed directly above the guide groove 303. The device includes a support frame 304, inside which an industrial camera 305 is fixedly installed. An electrically controlled valve 306 is fixedly installed on the top of a baffle 302. An air inlet pipe 307 is fixedly connected to the upper end of the electrically controlled valve 306, which is connected to an external air compressor. An exhaust pipe 308 is fixedly connected to the left side of the electrically controlled valve 306. The device uses the electrically controlled valve 306 to control the exhaust pipe 308 to blow air and remove defective tablets. This method has a fast response speed and will not cause collision damage to adjacent qualified tablets, ensuring the integrity of qualified tablets. A receiving chamber 309 is opened on the left inner wall of the rejection chamber 3. A receiving box 3010 is slidably connected inside the receiving chamber 309. The sliding fit design between the receiving box 3010 and the receiving chamber 309 facilitates the centralized collection and subsequent cleaning of defective tablets. The industrial camera 305 is located directly above the guide channel 303, and the exhaust pipe 308 is located at the front end of the guide channel 303 and is at the same horizontal level as the receiving chamber 309.

[0019] This utility model integrates the rejection component with the tablet press body 1 and the device platform 2, achieving full automation of the entire process from tablet discharge, conveying, detection to rejection of defective tablets. This eliminates the need for manual intervention, significantly reducing labor costs and detection errors, and dramatically improving production efficiency. The entire structure stabilizes the tablet conveying path through the coordinated operation of the conveyor belt 301 and the guide channel 303. Combined with the precise detection of the industrial camera 305 and the rapid rejection action of the electrically controlled valve 306 and the exhaust pipe 308, a highly efficient linkage mechanism of "conveyance-detection-rejection" is formed. This avoids missed detections due to tablet misalignment and prevents damage to qualified tablets during rejection, ensuring product quality stability.

[0020] Specifically, such as Figure 2 and Figure 3As shown, a partition assembly 4 is provided on the left inner wall of the rejection cavity 3. The partition assembly 4 includes a transmission cavity 401 formed on the left inner wall of the rejection cavity 3. Two receiving grooves 402 are arranged in parallel front-to-back within the transmission cavity 401. A rack 403 is slidably connected inside each of the two receiving grooves 402. A gear 404 is rotatably connected between the racks 403 and located inside the transmission cavity 401. The gear 404 meshes with the racks 403. The reciprocating rotation of the gear 404 controls the reciprocating extension and retraction of the racks 403 on both sides, thereby... It can achieve spacing between medicines and improve the stability of tablet delivery. A servo motor 405 is fixedly installed on the top left side of the device platform 2. The transmission end of the servo motor 405 is driven by the gear 404. The front rack 403 and the rear rack 403 move in opposite directions. When the front rack 403 extends through the rotation of the gear 404, the rear rack 403 will be retracted into the storage groove 402 through the rotation of the gear 404. When the rear rack 403 extends, the front rack 403 is retracted into the storage groove 402 in the same way.

[0021] In this invention, the separator component 4 is structurally adapted to the rejection chamber 3 and the conveyor belt 301, forming a deep synergy with the tablet conveying process. Through the reciprocating extension and retraction of the rack 403, uniform spacing of the tablets is effectively achieved, avoiding mutual squeezing and collision during conveying and ensuring overall conveying stability. This component is integrated through the transmission structure of the servo motor 405 and the gear 404, achieving automated spacing and protection without manual operation, further enhancing the overall automation level of the equipment and reducing the risk of batch confusion caused by human intervention. At the same time, the storage design of the rack 403 and the storage chute 402 avoids interference with the conveying process when not in operation, ensuring the smoothness and continuity of the overall equipment operation and improving the standardization of the production process.

[0022] Specifically, such as Figure 2 and Figure 3 As shown, a barrier cover 5 is fixedly installed on the top of the receiving chamber 309 to protect the top of the receiving chamber 309 and prevent the medicine from falling outside during the rejection process. A control panel 6 is fixedly installed on the top of the device platform 2. The control panel 6 is electrically connected to the industrial camera 305 and the electric valve 306. The operator can set the detection parameters of the industrial camera 305, the blowing time and air pressure of the electric valve 306, the start and stop timing of the servo motor 405, and the extension and retraction stroke of the rack 403 through the control panel 6. At the same time, the operating status of the equipment can be displayed in real time. A support leg 7 is fixedly connected to the bottom of the device platform 2 to increase the friction with the placement surface and improve the safety and stability of the placement.

[0023] Working principle and usage process of this utility model: The tablets compressed by the tablet press body 1 are discharged through the discharge pipe 101, and then the tablets will fall directly onto the conveyor belt 301 at the top of the device platform 2. When the conveyor belt 301 rotates, the inclined surface at the rear end of the baffle 302 effectively guides the tablets, allowing them to enter the guide channel 303 formed by the baffle 302 and the left side wall of the rejection chamber 3. The continuous conveying of the conveyor belt 301 and the directional effect of the guide channel 303 ensure the stability of the tablet movement path. At the same time, the industrial camera 305 fixedly installed above the guide channel 303 detects the moving tablets in real time. If a defective tablet is detected, the electrically controlled valve 306 fixedly installed on the top of the baffle 302 will open, and the air inlet pipe 307 connected to the external air compressor will supply air to the electrically controlled valve 306. The air blows the defective tablets toward the receiving chamber 309 opened on the left inner wall of the rejection chamber 3. The barrier cover 5 fixedly installed on the top of the receiving chamber 309 prevents the defective tablets from falling to the outside during the rejection process. The defective tablets finally fall into the receiving box 3010 slidably connected inside the receiving chamber 309, while qualified tablets continue to be conveyed by the conveyor belt 301. During this process, the servo motor 405 drives the gear 404 to rotate back and forth in the transmission cavity 401 on the left side of the removal cavity 3. Since the front rack 403 and the rear rack 403 move in opposite directions, the gear 404 rotates and drives the racks 403 on both sides to extend and retract, thereby achieving the spacing between the tablets. Operators can set parameters for various components, such as the detection parameters of the industrial camera 305, the blowing time and air pressure of the electrically controlled valve 306, the start and stop timing of the servo motor 405, and the extension and retraction stroke of the rack 403, and view the equipment's operating status in real time through the control panel 6 fixedly installed on the top of the device platform 2.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for automatically removing waste tablets from a tablet press, comprising a tablet press body (1) and a discharge pipe (101) installed at the front end of the tablet press body (1), characterized in that: A device platform (2) is fixedly installed at the front end of the tablet press body (1) and below the discharge pipe (101). A rejection chamber (3) is opened at the top of the device platform (2). A rejection assembly is provided inside the rejection chamber (3). The rejection assembly includes a conveyor belt (301) rotatably connected inside the rejection chamber (3). A baffle (302) is fixedly connected to the upper part of the conveyor belt (301) and the right side wall of the rejection chamber (3). A guide groove (303) is formed between the baffle (302) and the left side wall of the rejection chamber (3). A support frame (304) is fixedly installed directly above the flow channel (303). An industrial camera (305) is fixedly installed inside the support frame (304). An electrically controlled valve (306) is fixedly installed on the top of the baffle (302). An air inlet pipe (307) is fixedly connected to the upper end of the electrically controlled valve (306). An exhaust pipe (308) is fixedly connected to the left side of the electrically controlled valve (306). A receiving chamber (309) is opened on the left inner wall of the rejection chamber (3). A receiving box (3010) is slidably connected inside the receiving chamber (309).

2. The device for automatically removing waste tablets from a tablet press according to claim 1, characterized in that: The industrial camera (305) is located directly above the guide channel (303), and the exhaust pipe (308) is located at the front end of the guide channel (303) and is at the same horizontal level as the receiving chamber (309).

3. The device for automatically removing waste tablets from a tablet press according to claim 1, characterized in that: The left inner wall of the rejection cavity (3) is provided with a partition component (4). The partition component (4) includes a transmission cavity (401) opened on the left inner wall of the rejection cavity (3). The transmission cavity (401) has two storage grooves (402) arranged in parallel front and back. Both storage grooves (402) are slidably connected with racks (403).

4. The device for automatically removing waste tablets from a tablet press according to claim 3, characterized in that: A gear (404) is rotatably connected between the racks (403) and inside the transmission cavity (401). The gear (404) meshes with the racks (403). A servo motor (405) is fixedly installed on the top left side of the device platform (2).

5. The device for automatically removing waste tablets from a tablet press according to claim 4, characterized in that: The transmission end of the servo motor (405) is driven by the gear (404), and the front rack (403) moves in the opposite direction to the rear rack (403).

6. The device for automatically removing waste tablets from a tablet press according to claim 1, characterized in that: The top of the receiving chamber (309) is fixedly equipped with a barrier cover (5), the top of the device platform (2) is fixedly equipped with a control panel (6), and the bottom of the device platform (2) is fixedly connected with a support leg (7).

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