A tablet press with a safety protection device for the press column

Abstract

The utility model discloses a tablet press with pressure column safety protection device belongs to tablet press technical field, this device includes base, is rotatory and is provided with rotation support spare on the base, is provided with the bearing plate on the rotation support spare, fixed bearing plate is provided with pressure column, be provided with the stamping platform that cooperates with pressure column on the base to the limiting piece for bearing plate rotation angle is positioned, fixed bearing plate is provided with detection board, is provided with the inductive assembly for detecting detection board position on the limiting piece, the inductive assembly electric connection has the drive assembly for controlling the stamping platform lift state. The utility model in using, can effectively avoid the abnormal collision of stamping platform and not in position pressure column, makes pressure column and its cooperation component receive the physical damage condition, also avoided the direct threat that stamping platform constitutes to the staff who is receiving material or carries out other operation.

Description

Technical Field

[0001] This utility model relates to the field of tablet press technology, and in particular to a tablet press with a safety protection device for the pressure column. Background Technology

[0002] A tablet press is a mechanical device that compresses granular or powdered materials into tablets of specific shapes and specifications. It is widely used in the pharmaceutical, food, and chemical industries.

[0003] When the tablet press is working, a worker must feed the material onto the platform. Once the material is in place, the punch gradually approaches the pressure column, and the two work together to apply pressure to the material. Under this immense pressure, the material particles are tightly packed together, forming a dense structure, and the material's shape also changes. The tablet press can precisely control the pressure and holding time to adapt to the compression characteristics of different materials. After the pressure is applied, the punch returns to its original position, thus completing one tableting cycle.

[0004] The shortcomings of the existing technical solutions are as follows: During the operation of the tablet press, if the pressure column has not yet completed its reset action, and the switch is accidentally activated, the punch may start running prematurely. In this case, the punch is highly susceptible to abnormal collision with the unpositioned pressure column. This collision not only causes physical damage to the pressure column itself, affecting its structural stability and service life, but may also affect its mating components, increasing equipment maintenance costs and downtime. Furthermore, it poses a direct threat to personnel receiving materials or performing other operations, easily leading to collisions, crushing accidents, and endangering their personal safety. Utility Model Content

[0005] This invention provides a tablet press with a pressure column safety protection device, which can solve the problem in the prior art where accidental switch contact can easily cause equipment damage and accidents.

[0006] A tablet press with a pressure-bearing column safety protection device includes a base, a rotating support rotatably mounted on the base, a bearing plate mounted on the rotating support, and a pressure-bearing column fixedly mounted on the bearing plate; a stamping platform cooperating with the pressure-bearing column is mounted on the base, and a limiting member for positioning the rotation angle of the bearing plate is provided; a detection plate is fixedly mounted on the bearing plate, and a sensing component for detecting the position of the detection plate is mounted on the limiting member; the sensing component is electrically connected to a drive component for controlling the lifting state of the stamping platform.

[0007] As a further embodiment of this invention, the drive assembly includes a hydraulic motor.

[0008] As a further embodiment of this utility model: the sensing component includes a proximity switch disposed on the limiting member, and the proximity switch is electrically connected to the hydraulic motor.

[0009] As a further embodiment of this utility model, the bearing plate is provided with jaws that cooperate with the limiting member.

[0010] As a further embodiment of this utility model: the limiting member includes a positioning post that cooperates with the jaws.

[0011] As a further embodiment of this utility model: a limiting block that cooperates with the bearing plate is fixedly provided on the positioning column, and the bottom height of the limiting block is not lower than the top height of the bearing plate.

[0012] As a further embodiment of this utility model: the inner side of the jaws is provided with an arc-shaped concave surface that matches the shape of the side of the positioning post.

[0013] As a further embodiment of this utility model, a buffer layer is provided on the arc-shaped concave surface.

[0014] As a further embodiment of this utility model, the support plate is provided with a handle to facilitate the movement of the support plate by the staff.

[0015] As a further embodiment of this utility model: the pressure-bearing column is welded to the bearing plate.

[0016] The beneficial effects of this utility model are:

[0017] 1. In use, the sensing component is connected in series in the current path between the stamping platform and the hydraulic motor. Only when the sensing component detects the presence of the detection plate, i.e., when the bearing plate and the pressure column are in place, will a path be formed between the drive component and the stamping platform. Only then can the operator activate the drive component to control the lifting and lowering of the stamping platform. This design effectively avoids abnormal collisions between the stamping platform and the unpositioned pressure column, preventing physical damage to the pressure column and its mating components. It also prevents the stamping platform from posing a direct threat to operators who are receiving materials or performing other operations.

[0018] 2. In use, when the bearing plate rotates, the jaws move accordingly until the positioning post abuts at the deepest point of the jaws. At this point, the bearing plate is positioned, restricting its continued rotation and ensuring that the pressure-bearing column can accurately move to the designated position. Simultaneously, when the stamping platform pushes the pressure-bearing column, the limiting block and the rotating support work together to support the top of the bearing plate, enhancing the overall stability during extrusion. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of a tablet press with a pressure column safety protection device provided by this utility model;

[0020] Figure 2A top view schematic diagram of the overall structure of a tablet press with a pressure column safety protection device provided by this utility model;

[0021] Figure 3 This utility model provides a schematic diagram of the structure of a tablet press with a pressure column safety protection device after the pressure column is separated from the pressing platform.

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

[0023] 1. Base; 2. Rotating support; 3. Bearing plate; 301. Detection plate; 302. Jaws; 303. Handle; 4. Pressure column; 5. Limiting component; 501. Positioning column; 502. Limiting block; 6. Sensing component; 601. Proximity switch; 7. Stamping platform. Detailed Implementation

[0024] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0025] like Figures 1 to 3 As shown in the figure, the tablet press with a pressure-bearing column safety protection device provided in this embodiment of the utility model includes a base 1, a rotating support 2 rotatably mounted on the base 1, a bearing plate 3 mounted on the rotating support 2, and a pressure-bearing column 4 fixedly mounted on the bearing plate 3. Its overall structural layout is as follows: Figure 1 As shown. The base 1 is equipped with a stamping platform 7 that cooperates with the pressure column 4, and a limiting member 5 for positioning the rotation angle of the bearing plate 3.

[0026] Specifically, a detection plate 301 is fixedly mounted on the support plate 3, and a sensing component 6 for detecting the position of the detection plate 301 is installed on the limiting member 5. The sensing component 6 is electrically connected to a drive component for controlling the lifting and lowering state of the stamping platform 7, wherein the drive component is preferably a hydraulic motor, and other devices that can achieve equivalent functions are all within the protection scope of this patent. The sensing component 6 is connected in series in the current path between the stamping platform 7 and the drive component. When the support plate 3 moves the pressure column 4 above the stamping platform 7, the detection plate 301 will approach the sensing component 6. Only when the sensing component 6 detects the presence of the detection plate 301 will a path be formed between the drive component and the stamping platform 7, at which point the operator can start the drive component to control the lifting and lowering state of the stamping platform 7. This design effectively avoids abnormal collisions between the stamping platform 7 and the unpositioned pressure column 4 when the power switch is accidentally pressed, protecting the stability of the pressure column 4 and its cooperating components, and avoiding a direct threat to operators who are receiving materials or performing other operations.

[0027] In this embodiment, the sensing component 6 includes a proximity switch 601 disposed on the limiting member 5, preferably an inductive proximity switch. Of course, other devices capable of achieving proximity detection also fall within the scope of this patent, such as photoelectric proximity switches, ultrasonic proximity switches, and Hall effect proximity switches. The proximity switch 601 can detect the position of the detection plate 301, thereby controlling the circuit's connectivity.

[0028] like Figure 3 As shown, the bearing plate 3 has jaws 302 that cooperate with the limiting member 5. The limiting member 5 includes a positioning post 501 that cooperates with the jaws 302. When the bearing plate 3 rotates, it will drive the jaws 302 to move until the positioning post 501 abuts against the deepest part of the jaws 302, thereby achieving positioning of the bearing plate 3. A limiting block 502 that cooperates with the bearing plate 3 is also fixedly installed on the positioning post 501, and the bottom height of the limiting block 502 is not lower than the top height of the bearing plate 3. This design allows the bearing plate 3 to be screwed into the bottom of the limiting block 502. When the stamping platform 7 pushes the pressure column 4, the limiting block 502 can support the top of the bearing plate 3 together with the rotating support member 2, thereby improving the overall stability during extrusion.

[0029] In addition, the inner side of the jaws 302 is provided with an arc-shaped concave surface that matches the shape of the side of the positioning post 501. A buffer layer is also provided on the arc-shaped concave surface. This design can effectively reduce the wear between the jaws 302 and the positioning post 501. The support plate 3 is also provided with a handle 303 to facilitate the movement of the support plate 3 by the operator. The operator can easily push and pull the handle 303 to rotate the support plate 3, thereby moving the pressure column 4 closer to or away from the top of the stamping platform 7. The operation is simple and safe.

[0030] Working principle: During use, when the bearing plate 3 rotates, the jaws 302 move accordingly until the positioning post 501 abuts against the deepest part of the jaws 302. At this point, the bearing plate 3 is positioned, restricting its continued rotation and ensuring that the pressure column 4 can accurately move to the designated position. At the same time, when the stamping platform 7 pushes the pressure column 4, the limiting block 502 and the rotating support 2 together support the top of the bearing plate 3, enhancing the overall stability during extrusion.

[0031] A detection plate 301, preferably made of metal, is fixed on the support plate 3. When the support plate 3 moves the pressure column 4 above the stamping platform 7, the detection plate 301 will come into contact with the sensing component 6. Because the detection plate 301 changes the physical environment around the sensing component 6 (e.g., in the inductive proximity switch 601, the metal material of the detection plate 301 changes the electromagnetic field), it triggers the sensing component 6 to generate a corresponding electrical signal, enabling the sensing component 6 to detect the presence of the detection plate 301. The sensing component 6 is connected in series in the current path between the stamping platform 7 and the hydraulic motor. Only when the sensing component 6 detects the presence of the detection plate 301, i.e., when the support plate 3 and the pressure column 4 are in place, will a path be formed between the drive component and the stamping platform 7. Only then can the operator activate the drive component to control the lifting and lowering state of the stamping platform 7.

[0032] This design effectively prevents abnormal collisions between the stamping platform 7 and the misaligned pressure column 4. If the bearing plate 3 is not rotated to the correct position, the detection plate 301 will not be close to the sensing component 6, and the sensing component 6 will not be able to detect the detection plate 301. Consequently, a path will not be formed between the drive component and the stamping platform 7, and the stamping platform 7 will not be able to start. This protects the stability of the pressure column 4 and its mating components, and also avoids posing a direct threat to personnel who are receiving materials or performing other operations.

[0033] The support plate 3 is equipped with a handle 303. By pushing and pulling the handle 303, the operator can easily rotate the support plate 3, thereby moving the pressure column 4 closer to or away from the stamping platform 7. The operation is simple and convenient, and at the same time, it ensures the safety of the operation.

[0034] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A tablet press with a pressure column safety protection device, comprising a base (1), characterized in that, A rotating support member (2) is rotatably mounted on the base (1), a bearing plate (3) is mounted on the rotating support member (2), and a pressure-bearing column (4) is fixedly mounted on the bearing plate (3). A stamping platform (7) that cooperates with the pressure-bearing column (4) is mounted on the base (1), and a limiting member (5) for positioning the rotation angle of the bearing plate (3). A detection plate (301) is fixedly mounted on the bearing plate (3), and a sensing component (6) for detecting the position of the detection plate (301) is mounted on the limiting member (5). The sensing component (6) is electrically connected to a drive component for controlling the lifting state of the stamping platform (7).

2. A tablet press with a pressure column safety protection device as described in claim 1, characterized in that, The drive component includes a hydraulic motor.

3. A tablet press with a pressure column safety protection device as described in claim 2, characterized in that, The sensing component (6) includes a proximity switch (601) disposed on the limiting member (5), the proximity switch (601) being electrically connected to the hydraulic motor.

4. A tablet press with a pressure column safety protection device as described in claim 1, characterized in that, The bearing plate (3) is provided with jaws (302) that cooperate with the limiting member (5).

5. A tablet press with a pressure column safety protection device as described in claim 4, characterized in that, The limiting member (5) includes a positioning post (501) that cooperates with the jaws (302).

6. A tablet press with a pressure column safety protection device as described in claim 5, characterized in that, A limiting block (502) that cooperates with the bearing plate (3) is fixedly installed on the positioning column (501), and the bottom height of the limiting block (502) is not lower than the top height of the bearing plate (3).

7. A tablet press with a pressure column safety protection device as described in claim 4, characterized in that, The inner side of the jaws (302) is provided with an arc-shaped concave surface that matches the shape of the side of the positioning post (501).

8. A tablet press with a pressure column safety protection device as described in claim 7, characterized in that, A buffer layer is provided on the arc-shaped concave surface.

9. A tablet press with a pressure column safety protection device as described in claim 1, characterized in that, The support plate (3) is provided with a handle (303) to facilitate the movement of the support plate (3) by the staff.

10. A tablet press with a pressure column safety protection device as described in claim 1, characterized in that, The pressure column (4) is welded to the bearing plate (3).

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