A reject structure of a high-speed tablet press

Abstract

The utility model discloses a kind of high-speed tablet press reject structures, this structure contains tablet press body, its inner cavity upper space is equipped with tabletting operation equipment, and the equipment is also provided with waste tablet rejection mechanism in it.Tablet press body is composed of base and machine case, and tabletting operation equipment takes hydraulic machine as core, and hydraulic machine telescopic end head installs lower tablet die, and upper surface is fixed upper tablet die by support frame, and upper tablet die has multiple tablet punch, and is adapted with the tabletting recess of lower tablet die.Waste tablet rejection mechanism includes electric control slide rail, electric control sliding block, electric telescopic rod and suction cup, and suction cup is connected negative pressure machine in base by negative pressure pipe.The structure can be in tabletting process, when waste tablet appears, using waste tablet rejection mechanism to suck out and discharge waste tablet through waste tablet conveying groove, realize efficient automatic reject, guarantee the continuity of tabletting production and product quality.

Description

Technical Field

[0001] This utility model relates to the technical field of waste removal components for tablet presses, specifically to a waste removal structure for a high-speed tablet press. Background Technology

[0002] In the current tablet production field, the common method for removing defective tablets in high-speed tablet presses is to use air valves and nozzles to blow them away. During the tableting process, a set pressure threshold is used to determine whether a tablet is defective; when the pressure exceeds the punch's threshold, it is considered defective. However, this traditional method has significant drawbacks. Since the raw material used for tableting is powder, the strong airflow during air blowing removes the powder, causing severe dust pollution inside the machine. This dust not only contaminates the precision components inside the machine, affecting their normal operation and lifespan, and increasing maintenance costs and frequency, but it also spreads into the production environment, harming the health of operators and failing to meet hygiene and environmental protection requirements, thus impacting the overall quality and efficiency of tablet production. Therefore, a new defective tablet removal structure is urgently needed to solve these problems. Utility Model Content

[0003] The purpose of this utility model is to provide a technical solution for a waste rejection structure in a high-speed tablet press, thereby addressing the shortcomings mentioned in the background art. To overcome the drawbacks and defects described in the background art, this technical solution includes the following:

[0004] The device includes a tablet press body, in which a tablet pressing device is fixedly connected to the upper space of the inner cavity of the tablet press body, and a waste tablet rejection mechanism is provided in the inner cavity of the tablet pressing device; the tablet press body includes a base and a housing fixed to the upper surface of the base.

[0005] The tableting operation equipment includes a hydraulic press, a lower tableting mold fixed to the telescopic end of the hydraulic press, and an upper tableting mold fixed to the upper surface of the hydraulic press covering the lower tableting mold. The lower surface of the upper tableting mold is fixedly connected to multiple tableting punches, and the upper surface of the hydraulic press is provided with multiple tableting grooves adapted to the tableting punches.

[0006] The waste removal mechanism includes an electrically controlled slide rail fixed to the upper surface of the hydraulic press, an electrically controlled slider that slides up and down on the electrically controlled slide rail, and an electric telescopic rod fixed to the left side wall of the electrically controlled slider, with a suction cup connected to the telescopic end of the electric telescopic rod.

[0007] As a preferred embodiment of this utility model, the bottom surface of the hydraulic press is fixedly connected to the bottom side wall of the inner cavity of the machine box.

[0008] As a preferred embodiment of this utility model: a finished product conveyor is installed on the front side of the upper surface of the hydraulic press, and a powder conveying hopper is fixedly connected to the rear section of the left side surface of the hydraulic press.

[0009] As a preferred embodiment of this utility model: the upper surface of the hydraulic press is fixedly connected with several support frames for supporting the upper pressing mold.

[0010] As a preferred embodiment of this utility model: the pressing punches at the bottom of the upper pressing mold are arranged in a circular array with the axis of the upper pressing mold as the reference, and the pressing grooves on the upper surface of the lower pressing mold are also arranged in a circular array.

[0011] As a preferred embodiment of this utility model: the lower pressing mold and the upper pressing mold have space between them for the waste sheet removal mechanism to accommodate each other, and when the lower pressing mold and the upper pressing mold are coupled together to press the sheet, the bottom of the upper pressing mold is not in contact with the waste sheet removal mechanism.

[0012] As a preferred embodiment of this utility model: the upper surface of the hydraulic press is fixedly connected to a fence surrounding the lower pressing mold, and a waste sheet conveying trough is fixedly connected to the left side wall of the fence.

[0013] As a preferred embodiment of this utility model: the top of the suction cup is connected to a negative pressure tube, the other end of the negative pressure tube is connected to a negative pressure machine inside the base, the telescopic end of the electric telescopic rod is connected to a telescopic shaft, the other end of the telescopic shaft is connected to the top of the suction cup, and the suction cup is vertically arranged.

[0014] As a preferred embodiment of this utility model, a micro stepper motor is connected between the bottom end of the electrically controlled slide rail and the upper surface of the lower pressing mold.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] The waste tablet rejection mechanism is integrated into the tablet pressing equipment, featuring a compact structure that doesn't occupy excessive space, facilitating equipment miniaturization and integration. The electrically controlled slide rail and slider work together to precisely move the electric telescopic rod and suction cups to the waste tablet location. The electric telescopic rod allows for flexible adjustment of the suction cup height, ensuring accurate adsorption of waste tablets and achieving highly efficient automated rejection, reducing manual intervention and improving production efficiency. A negative pressure pipe connects to the negative pressure unit within the machine base, providing stable adsorption force to the suction cups and ensuring reliable adsorption and release of waste tablets. The enclosure and waste tablet conveying trough design allows for smooth discharge of waste tablets, preventing accumulation within the equipment and impacting operation. Furthermore, the overall structure's rational layout of components ensures the stable and orderly operation of the tablet pressing and rejection processes. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of a high-speed tablet press.

[0019] Figure 2 This is a schematic diagram of the tablet press body;

[0020] Figure 3 This is a schematic diagram of the tablet compression equipment;

[0021] Figure 4 This is a schematic diagram of a waste film rejection mechanism.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Tableting machine body; 11. Machine base; 12. Machine casing; 2. Tableting operating equipment; 21. Hydraulic press; 22. Lower tableting die; 23. Finished product conveyor; 24. Support frame; 25. Upper tableting die; 26. Powder conveying hopper; 27. Tableting punch; 28. Fence; 29. ​​Waste tablet conveying trough; 3. Waste tablet rejection mechanism; 31. Electrically controlled slide rail; 32. Electrically controlled slider; 33. Electric telescopic rod; 34. Telescopic shaft; 35. Suction cup. Detailed Implementation

[0024] To provide a clearer explanation and illustration of the technical solution and implementation of this utility model, several preferred specific embodiments for implementing the technical solution of this utility model are described below. The following description is merely exemplary and not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these drawings, the same or similar reference numerals indicate the same or similar parts and features. The various drawings only schematically illustrate the concept and principles of the embodiments of this disclosure and do not necessarily show the specific dimensions and proportions of the various embodiments of this disclosure. Specific parts in certain drawings may be exaggerated to illustrate relevant details or structures of the embodiments of this disclosure. The technical solution of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model.

[0025] Example 1: A waste removal structure for a high-speed tablet press includes a tablet press body 1, a machine box 12 fixed on the upper surface of the base 11 of the tablet press body 1, a tablet pressing operation device 2 fixedly connected in the upper space of the inner cavity of the machine box 12, and a waste tablet removal mechanism 3 provided in the inner cavity of the tablet pressing operation device 2. The bottom surface of the hydraulic press 21 of the tableting operation device 2 is fixedly connected to the bottom side wall of the inner cavity of the housing 12. A lower tableting mold 22 is fixed to the telescopic end of the hydraulic press 21. An upper tableting mold 25 is set on the upper surface of the hydraulic press 21, covering the lower tableting mold 22. The upper tableting mold 25 is fixed to the upper surface of the hydraulic press 21 by several support frames 24. Multiple tableting punches 27 are fixedly connected to the lower surface of the upper tableting mold 25. Multiple tableting grooves adapted to the tableting punches 27 are set on the upper surface of the hydraulic press 21. The tableting punches 27 at the bottom of the upper tableting mold 25 are arranged in a circular array with the axis of the upper tableting mold 25 as a reference. The tableting grooves on the upper surface of the lower tableting mold 22 are also arranged in a circular array. The electrically controlled slide rail 31 of the waste tablet rejection mechanism 3 is fixed to the upper surface of the hydraulic press 21, and a micro stepper motor is connected between the bottom end of the electrically controlled slide rail 31 and the upper surface of the lower tableting mold 22. The electrically controlled slider 32 slides up and down on the electrically controlled slide rail 31. The electrically controlled telescopic rod 33 is fixed to the left side wall of the electrically controlled slider 32. The telescopic end of the electrically controlled telescopic rod 33 is connected to the suction cup 35 through the telescopic shaft 34. The suction cup 35 is vertically arranged, and the top of the suction cup 35 is connected to the negative pressure pipe. The other end of the negative pressure pipe is connected to the negative pressure machine inside the machine base 11. The lower tableting mold 22 and the upper tableting mold 25 have space between them for the waste tablet rejection mechanism 3 to accommodate. When the lower tableting mold 22 and the upper tableting mold 25 are coupled together to press tablets, the bottom of the upper tableting mold 25 does not contact the waste tablet rejection mechanism 3. The finished product conveyor 23 is installed on the front side of the upper surface of the hydraulic press 21. The powder conveying hopper 26 is fixedly connected to the rear section of the left side surface of the hydraulic press 21. The fence 28 surrounding the lower tableting mold 22 is fixedly connected to the upper surface of the hydraulic press 21. The waste tablet conveying trough 29 is fixedly connected to the left side wall of the fence 28. During operation, powder enters from the powder conveying hopper 26. The hydraulic press 21 drives the lower tableting mold 22 and the upper tableting mold 25 to cooperate in the tableting operation. Qualified finished products are conveyed out by the finished product conveyor 23. When waste tablets appear, the electric control slider 32 moves on the electric control slide rail 31 to above the waste tablets. The electric telescopic rod 33 drives the suction cup 35 to descend through the telescopic shaft 34. The negative pressure machine works to make the suction cup 35 suck up the waste tablets. Then the electric telescopic rod 33 drives the suction cup 35 to rise. The electric control slider 32 moves to above the waste tablet conveying trough 29. The suction cup 35 puts down the waste tablets, and the waste tablets are discharged through the waste tablet conveying trough 29.

[0026] Example 2: In this high-speed tablet press waste removal structure, the connection between the base 11 and the casing 12 of the tablet press body 1 remains unchanged. The tablet pressing operation device 2 is installed in the upper space of the inner cavity of the casing 12. The hydraulic press 21 is fixed to the bottom side wall of the inner cavity of the casing 12. The lower tablet pressing mold 22 is fixed to the telescopic end of the hydraulic press 21. The upper tablet pressing mold 25 is installed on the upper surface of the hydraulic press 21 through the support frame 24. The tablet pressing punch 27 of the upper tablet pressing mold 25 and the tablet pressing groove of the lower tablet pressing mold 22 are arranged in a circular array. In the waste tablet removal mechanism 3, the electrically controlled slide rail 31 is fixed to the upper surface of the hydraulic press 21, the electrically controlled slider 32 slides on it, the electric telescopic rod 33 is fixed to the left side of the electrically controlled slider 32, and is connected to the vertically arranged suction cup 35 through the telescopic shaft 34. The negative pressure pipe at the top of the suction cup 35 is connected to the negative pressure machine inside the base 11. There is space between the lower tablet pressing mold 22 and the upper tablet pressing mold 25 to accommodate the waste tablet removal mechanism 3, and they do not contact each other during tablet pressing. A finished product conveyor 23 is mounted on the front side of the upper surface of the hydraulic press 21, and a powder conveying hopper 26 is connected to the rear section of the left side surface. A fence 28 is fixed on the upper surface, surrounding the lower tableting mold 22. A waste tablet conveying trough 29 is connected to the left side of the fence 28. During the tableting process, powder enters through the powder conveying hopper 26, and the hydraulic press 21 drives the mold to press the tablets. Qualified finished products are transported away by the finished product conveyor 23. When waste tablets are detected, the electrically controlled slider 32 drives the electric telescopic rod 33 and the suction cup 35 to move above the waste tablets. The electric telescopic rod 33 causes the suction cup 35 to descend and adsorb the waste tablets, and then rises again. The electrically controlled slider 32 moves the suction cup 35 above the waste tablet conveying trough 29, and the suction cup 35 releases the waste tablets, which are then discharged along the waste tablet conveying trough 29.

[0027] Example 3: The high-speed tablet press has a waste removal structure. The tablet press body 1 consists of a base 11 and a housing 12. The tablet pressing operation device 2 is installed in the upper space of the inner cavity of the housing 12, and the tablet pressing operation device 2 is equipped with a waste tablet removal mechanism 3. The hydraulic press 21 is fixed to the bottom side wall of the inner cavity of the housing 12. The lower tablet pressing mold 22 is installed at its telescopic end. The upper tablet pressing mold 25 is fixed to the upper surface of the hydraulic press 21 by a support frame 24. The tablet pressing punch 27 of the upper tablet pressing mold 25 and the tablet pressing groove of the lower tablet pressing mold 22 are arranged in a circular array. The electrically controlled slide rail 31 of the waste tablet removal mechanism 3 is on the upper surface of the hydraulic press 21, and the electrically controlled slider 32 slides on it. The electric telescopic rod 33 is fixed to the left side of the electrically controlled slider 32 and is connected to the vertical suction cup 35 through the telescopic shaft 34. The negative pressure pipe at the top of the suction cup 35 is connected to the negative pressure machine in the base 11. There is space between the lower tablet pressing mold 22 and the upper tablet pressing mold 25, and they do not contact each other during tablet pressing. The hydraulic press 21 has a finished product conveyor 23 on the front side of its upper surface, a powder conveying hopper 26 on the rear section of its left side surface, and a fence 28 surrounding the lower tableting mold 22 on its upper surface. A waste tablet conveying trough 29 is located on the left side of the fence 28. During tableting, powder enters from the powder conveying hopper 26, the hydraulic press 21 drives the mold to press the tablets, and qualified finished products are output by the finished product conveyor 23. When waste tablets are found, the electrically controlled slider 32 moves the electric telescopic rod 33 and the suction cup 35 to the waste tablet location. The electric telescopic rod 33 lowers the suction cup 35 to hold the waste tablet, and after rising, the electrically controlled slider 32 moves the suction cup 35 above the waste tablet conveying trough 29, where the suction cup 35 lowers the waste tablet, which is then discharged through the waste tablet conveying trough 29.

[0028] Based on the above-described preferred technical solution, the workflow of this technical solution is explained as follows:

[0029] Powder enters from the powder conveying hopper 26 fixedly connected to the rear of the left side surface of the hydraulic press 21 and falls onto the lower tableting mold 22 set on the upper surface of the hydraulic press 21. At this time, the hydraulic press 21 starts to work, and its telescopic end drives the lower tableting mold 22 to move upward. At the same time, the upper tableting mold 25, which is fixed to the upper surface of the hydraulic press 21 and supported by several support frames 24, remains stationary. The multiple tableting punches 27 fixedly connected to the lower surface of the upper tableting mold 25 correspond to the multiple tableting grooves set on the upper surface of the lower tableting mold 22 that are adapted to the tableting punches 27. When the lower tableting mold 22 rises to the position coupled with the upper tableting mold 25, the pressure... The tableting punch 27 enters the tableting groove to tablet the powder. Since the tableting punches 27 at the bottom of the upper tableting mold 25 are arranged in a circular array with the axis of the upper tableting mold 25 as the reference, and the tableting grooves on the upper surface of the lower tableting mold 22 are also arranged in a circular array, a relatively uniform tableting effect can be achieved. After tableting is completed, the hydraulic press 21 drives the lower tableting mold 22 to descend. At this time, if it is a qualified product, the finished product conveyor 23 installed on the front side of the upper surface of the hydraulic press 21 starts to operate, conveying the pressed finished product from the lower tableting mold 22. If a defective tablet is detected, the defective tablet rejection mechanism 3 starts to work. The electrically controlled slide rail 31, fixed to the upper surface of the hydraulic press 21, is activated. The electrically controlled slider 32 slides up and down on the track of the electrically controlled slide rail 31, moving to above the location of the waste sheet. Then, the electric telescopic rod 33, fixed to the left side wall of the electrically controlled slider 32, starts to work. Its telescopic end drives the connected suction cup 35 to descend via the telescopic shaft 34, bringing the suction cup 35 closer to the waste sheet. Since the top of the suction cup 35 is connected to a negative pressure pipe, the other end of which is connected to a negative pressure machine inside the machine base 11, the negative pressure machine works, creating negative pressure in the suction cup 35, thereby sucking up the waste sheet. Then, the electric telescopic rod 33 drives the suction cup 35 to rise, and the electrically controlled slider 32... Then, it moves along the electrically controlled slide rail 31 to the left side wall of the fence 28 that surrounds the lower tableting mold 22 and is fixedly connected to the upper surface of the hydraulic press 21, above the waste tablet conveying trough 29. The negative pressure machine stops working, the suction cup 35 puts down the waste tablets, and the waste tablets are discharged through the waste tablet conveying trough 29, completing the waste tablet removal work. Throughout the process, the lower tableting mold 22 and the upper tableting mold 25 have space between them for the waste tablet removal mechanism 3 to accommodate. When the lower tableting mold 22 and the upper tableting mold 25 are coupled together to press tablets, the bottom of the upper tableting mold 25 does not contact the waste tablet removal mechanism 3, so it will not affect the tableting operation and the waste tablet removal operation.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A waste rejection structure for a high-speed tablet press, comprising a tablet press body (1), characterized in that: A tablet pressing operation device (2) is fixedly connected in the upper space of the inner cavity of the tablet press body (1), and a waste tablet rejection mechanism (3) is provided in the inner cavity of the tablet pressing operation device (2). The tablet press body (1) includes a base (11) and a housing (12) fixed on the upper surface of the base (11); The tablet pressing operation device (2) includes a hydraulic press (21), a lower tablet pressing mold (22) fixed on the telescopic end of the hydraulic press (21), and an upper tablet pressing mold (25) fixed on the upper surface of the hydraulic press (21) covering the lower tablet pressing mold (22). The lower surface of the upper tablet pressing mold (25) is fixedly connected with multiple tablet pressing punches (27). The upper surface of the hydraulic press (21) is provided with multiple tablet pressing grooves that are adapted to the tablet pressing punches (27). The waste removal mechanism (3) includes an electrically controlled slide rail (31) fixed on the upper surface of the hydraulic press (21), an electrically controlled slider (32) slidably mounted on the track of the electrically controlled slide rail (31), and an electric telescopic rod (33) fixed on the left side wall of the electrically controlled slider (32), and the telescopic end of the electric telescopic rod (33) is connected to a suction cup (35).

2. The waste rejection structure of a high-speed tablet press according to claim 1, characterized in that: The bottom surface of the hydraulic press (21) is fixedly connected to the bottom side wall of the inner cavity of the housing (12).

3. The waste rejection structure for a high-speed tablet press according to claim 1, characterized in that: A finished product conveyor (23) is installed on the front side of the upper surface of the hydraulic press (21), and a powder conveying hopper (26) is fixedly connected to the rear section of the left side surface of the hydraulic press (21).

4. The waste rejection structure of a high-speed tablet press according to claim 1, characterized in that: The upper surface of the hydraulic press (21) is fixedly connected with several support frames (24) for supporting the upper pressing mold (25).

5. The waste rejection structure of a high-speed tablet press according to claim 1, characterized in that: The tableting punches (27) at the bottom of the upper tableting mold (25) are arranged in a ring array with the axis of the upper tableting mold (25) as the reference, and the tableting grooves on the upper surface of the lower tableting mold (22) are also arranged in a ring array.

6. The waste rejection structure of a high-speed tablet press according to claim 1, characterized in that: The lower pressing mold (22) and the upper pressing mold (25) have space between them for the waste tablet rejection mechanism (3) to accommodate each other, and when the lower pressing mold (22) and the upper pressing mold (25) are coupled together to press tablets, the bottom of the upper pressing mold (25) does not contact the waste tablet rejection mechanism (3).

7. The waste rejection structure of a high-speed tablet press according to claim 1, characterized in that: The upper surface of the hydraulic press (21) is fixedly connected to a fence (28) surrounding the lower pressing mold (22), and a waste sheet conveying trough (29) is fixedly connected to the left side wall of the fence (28).

8. The waste rejection structure of a high-speed tablet press according to claim 1, characterized in that: The top of the suction cup (35) is connected to a negative pressure tube, and the other end of the negative pressure tube is connected to the negative pressure machine inside the base (11). The telescopic end of the electric telescopic rod (33) is connected to a telescopic shaft (34), and the other end of the telescopic shaft (34) is connected to the top of the suction cup (35). The suction cup (35) is set vertically.

9. The waste rejection structure of a high-speed tablet press according to claim 1, characterized in that: A micro stepper motor is connected between the bottom end of the electronically controlled slide rail (31) and the upper surface of the lower pressing mold (22).

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