Pressing mechanism of tablet press

Abstract

The utility model provides a pressing mechanism of a tablet press, and belongs to the technical field of plate production equipment. According to the structure, a supporting arm is fixedly connected to a rack, a fixing plate is fixedly connected to the front side of the supporting arm, an upper hydraulic machine is fixedly connected to the upper side of the supporting arm, a pressing head is fixedly connected to the bottom of a piston rod of the upper hydraulic machine, and a top plate is fixedly connected to the middle of the piston rod of the upper hydraulic machine; a plurality of first sliding rods are connected between the top plate and the pressing head, a plurality of sliding sleeves are arranged on the fixing plate, the first sliding rods penetrate through the sliding sleeves and are in sliding fit with the sliding sleeves, a bottom plate is arranged below the pressing head, a supporting mechanism is arranged on the bottom plate, a mold is arranged on the supporting mechanism, a groove body is formed in the mold, and the groove body is matched with the pressing head. According to the utility model, a working mode that the pressure head is matched with the grooved die is adopted, and a guide limiting mechanism is designed for a movement mechanism. In addition, the die can be driven to actively move towards the pressing head, and a pressure sensor is additionally arranged to monitor pressing data.

Description

Technical Field

[0001] This utility model relates to the field of sheet production equipment technology, specifically to a pressing mechanism for a sheet press. Background Technology

[0002] Ceramic matrix composites are materials that combine ceramics as a matrix with various fibers. These materials combine the high-temperature stability, high strength, and stiffness of ceramics with the high elasticity and toughness of fibers, thus significantly improving the overall performance of the material.

[0003] In the production process of ceramic matrix composite panels, reinforcing materials (such as fibers, whiskers, and particles) are first incorporated into the unconsolidated matrix material, arranged neatly or mixed evenly. Based on this, processes such as sintering, sol-gel, hot-pressing sintering, and chemical vapor deposition are used for shaping. Finally, surface treatment, pressing, cutting, and polishing are performed sequentially to obtain the finished panel. In existing technologies, conventional pressing machines use cylinders to drive the die head for one-time pressing. Although the process is fast and continuous, it suffers from poor stability and uneven stress distribution, resulting in a wide thickness distribution of the finished product, making it difficult to meet precision machining requirements. Summary of the Invention

[0004] The technical problem to be solved by this utility model is that conventional tablet presses used for ceramic matrix composite plates have poor stability and poor uniformity of force.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0006] A pressing mechanism for a tablet press includes a frame, a support arm, a fixed plate, an upper hydraulic press, a top plate, a bottom plate, a support mechanism, a piston rod, first sliding rods, a groove, a pressing head, and a mold. The support arm is fixedly connected to the frame, and a fixed plate is fixedly connected to the front side of the support arm. The upper hydraulic press is fixedly connected to the upper side of the support arm. A pressing head is fixedly connected to the bottom of the piston rod of the upper hydraulic press. A top plate is fixedly connected to the middle of the piston rod of the upper hydraulic press. A plurality of first sliding rods are connected between the top plate and the pressing head. A plurality of sliding sleeves are provided on the fixed plate, and the first sliding rods pass through and slide in cooperation with the sliding sleeves. A bottom plate is provided below the pressing head, and a support mechanism is provided on the bottom plate. A mold is provided on the support mechanism, and a groove is provided on the mold, the groove cooperating with the pressing head.

[0007] Preferably, the support mechanism includes a base, a lower hydraulic press, a return spring, a moving head, and second slide rods. The base is fixedly connected to a base plate, the lower hydraulic press is mounted on the base, the moving head is fixedly connected to the upper end of the piston rod of the lower hydraulic press, the return spring is connected between the moving head and the outer wall of the lower hydraulic press, the moving head passes through a frame, the mold is fixedly connected to the top of the moving head, several second slide rods are fixedly connected to the bottom of the mold, several sliding sleeves are mounted on the frame, and the second slide rods pass through the sliding sleeves and slide in cooperation with the sliding sleeves.

[0008] Preferably, a pressure sensor is provided between the moving head and the mold.

[0009] Preferably, the base is a lifting base with an adjustment handle.

[0010] Preferably, a cam is fixedly connected to the bottom end of the second slide rod, and the diameter of the cam is larger than the diameter of the slide sleeve on the frame.

[0011] Preferably, an annular seat is fixedly connected to the frame, the moving head passes through the annular seat and onto the frame, and a sliding sleeve on the frame is mounted on the annular seat.

[0012] Preferably, a through hole is provided on the fixed plate, through which the piston rod passes without contacting the wall of the through hole.

[0013] Preferably, the support arm is in the shape of a broken line, with the vertical arm of the support arm fixedly connected to the frame, and the upper hydraulic press installed on the horizontal arm of the support arm.

[0014] In the above technical solution, the frame is a bottom support structure; the support arm is used to set up the fixed plate and the upper hydraulic press, whereby the upper hydraulic press drives the piston rod at its lower end to perform a pressing action on the pressure head; the fixed plate is used to set up the sliding sleeve, which slides in engagement with the first sliding rod; the top plate located in the middle of the piston rod, together with the pressure head, supports the first sliding rod, which slides in engagement with the sliding sleeve on the fixed plate, thereby guiding and restricting the pressing action and ensuring that it does not shift laterally. The bottom plate is used to set up the support mechanism, which supports the mold. The groove on the mold cooperates with the pressure head above to ensure accurate and stable positioning during the tableting process.

[0015] In the preferred technical solution regarding the support mechanism, a lower hydraulic press is mounted on a base. The lower hydraulic press drives the moving head at its end to lift the mold on top of the moving head, thereby actively moving it towards the pressing head to achieve alignment. A return spring is used to reset the movement, and the cooperation between the second sliding rod and the sliding sleeve during this movement prevents lateral displacement. Furthermore, a pressure sensor can be added between the moving head and the mold to monitor the peak and average pressure during the tableting process, thereby evaluating the uniformity and stability of the process.

[0016] This invention provides a pressing mechanism for a tablet press. Instead of a single die head for one-time stamping, this solution employs a working mode combining a pressing head and a grooved die, and includes a guiding and limiting mechanism for the motion. Furthermore, this invention can drive the die to actively move towards the pressing head, and adds a pressure sensor to monitor pressing data, improving process stability and traceability. Attached Figure Description

[0017] Figure 1 This is the first overall drawing of this utility model;

[0018] Figure 2 This is the second overall drawing of this utility model;

[0019] Figure 3 This is the first partial view of this utility model;

[0020] Figure 4 This is the second partial view of this utility model;

[0021] In the picture:

[0022] Detailed Implementation

[0023] The specific embodiments of this utility model will be described in detail below. To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments. The approximate language used in the following embodiments can be used for quantitative descriptions, indicating that a certain degree of variation in quantity is permissible without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following embodiments have the same meaning as commonly understood by those skilled in the art to which this utility model pertains.

[0024] Example 1

[0025] A pressing mechanism of a tablet press, such as Figures 1-4 As shown, the machine includes a frame 1, a support arm 2, a fixed plate 3, an upper hydraulic press 4, a top plate 5, a bottom plate 6, a support mechanism 7, a piston rod 8, a first sliding rod 9, a groove 10, a pressure head 11, and a mold 12. The support arm 2 is fixedly connected to the frame 1. The fixed plate 3 is fixedly connected to the front side of the support arm 2. The upper hydraulic press 4 is fixedly connected to the upper side of the support arm 2. The pressure head 11 is fixedly connected to the bottom of the piston rod 8 of the upper hydraulic press 4. The top plate 5 is fixedly connected to the middle of the piston rod 8 of the upper hydraulic press 4. Several first sliding rods 9 are connected between the top plate 5 and the pressure head 11. Several sliding sleeves are provided on the fixed plate 3, and the first sliding rods 9 pass through and slide with the sliding sleeves. The bottom plate 6 is provided below the pressure head 11. The support mechanism 7 is provided on the bottom plate 6. The mold 12 is provided on the support mechanism 7. The groove 10 is provided on the mold 12 and cooperates with the pressure head 11.

[0026] In the above technical solution, the frame 1 is a bottom support structure; the support arm 2 is used to set the fixed plate 3 and the upper hydraulic press 4, wherein the upper hydraulic press 4 is used to drive the piston rod 8 at its lower end to perform a pressing action on the pressure head 11; the fixed plate 3 is used to set the sliding sleeve, which slides in cooperation with the first sliding rod 9; the top plate 5 located in the middle of the piston rod 8 is used to support the first sliding rod 9 together with the pressure head 11, and the first sliding rod 9 slides in cooperation with the sliding sleeve on the fixed plate 3, thereby guiding and restricting the above-mentioned pressing action to ensure that it does not shift laterally. The bottom plate 6 is used to set the support mechanism 7, which supports the mold 12. The groove 10 on the mold 12 cooperates with the pressure head 11 above to ensure accurate and stable positioning during the tableting process.

[0027] Example 2

[0028] A pressing mechanism of a tablet press, such as Figures 1-4 As shown, the machine includes a frame 1, a support arm 2, a fixed plate 3, an upper hydraulic press 4, a top plate 5, a bottom plate 6, a support mechanism 7, a piston rod 8, a first sliding rod 9, a groove 10, a pressure head 11, and a mold 12. The support arm 2 is fixedly connected to the frame 1. The fixed plate 3 is fixedly connected to the front side of the support arm 2. The upper hydraulic press 4 is fixedly connected to the upper side of the support arm 2. The pressure head 11 is fixedly connected to the bottom of the piston rod 8 of the upper hydraulic press 4. The top plate 5 is fixedly connected to the middle of the piston rod 8 of the upper hydraulic press 4. Several first sliding rods 9 are connected between the top plate 5 and the pressure head 11. Several sliding sleeves are provided on the fixed plate 3, and the first sliding rods 9 pass through and slide with the sliding sleeves. The bottom plate 6 is provided below the pressure head 11. The support mechanism 7 is provided on the bottom plate 6. The mold 12 is provided on the support mechanism 7. The groove 10 is provided on the mold 12 and cooperates with the pressure head 11.

[0029] The support mechanism 7 includes a base 701, a lower hydraulic press 703, a return spring 704, a moving head 705, and second sliding rods 706. The base 701 is fixedly connected to the base plate 6. The lower hydraulic press 703 is mounted on the base 701. The moving head 705 is fixedly connected to the upper end of the piston rod of the lower hydraulic press 703. A return spring 704 connects between the moving head 705 and the outer wall of the lower hydraulic press 703. The moving head 705 passes through the frame 1. A mold 12 is fixedly connected to the top of the moving head 705. Several second sliding rods 706 are fixedly connected to the bottom of the mold 12. Several sliding sleeves are provided on the frame 1. The second sliding rods 706 pass through the sliding sleeves and slide in cooperation with them. A pressure sensor 707 is provided between the moving head 705 and the mold 12. The base 701 is a lifting base and has an adjusting handle 702. A cam is fixedly connected to the bottom end of the second slide rod 706. The diameter of the cam is larger than the diameter of the sliding sleeve on the frame 1. An annular seat 13 is fixedly connected to the frame 1. The moving head 705 passes through the annular seat 13 and passes through the frame 1. The sliding sleeve on the frame 1 is mounted on the annular seat 13. A through hole is provided on the fixed plate 3. The piston rod 8 passes through the through hole and does not contact the hole wall. The support arm 2 is zigzag-shaped. The vertical arm of the support arm 2 is fixedly connected to the frame 1. The upper hydraulic press 4 is mounted on the horizontal arm of the support arm 2. In the above technical solution, the lower hydraulic press 703 is installed using the base 701. The lower hydraulic press 703 drives the moving head 705 at its end to move, which can lift the mold 12 on the top of the moving head 705, thereby actively moving towards the pressure head 11 to achieve the purpose of alignment. The return spring 704 is used to reset the movement. During the movement, the cooperation between the second slide rod 706 and the sliding sleeve prevents it from shifting laterally. In addition, a pressure sensor 707 is added between the moving head 705 and the mold 12 to monitor the pressure peak and average values ​​during the tableting process, thereby evaluating the uniformity and stability of the process.

[0030] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the scope of this utility model application should be included within the protection scope of this utility model.

Claims

1. A compression mechanism of a tablet press, characterized by The machine includes a frame (1), a support arm (2), a fixed plate (3), an upper hydraulic press (4), a top plate (5), a bottom plate (6), a support mechanism (7), a piston rod (8), a first slide rod (9), a trough (10), a pressure head (11), and a mold (12). The support arm (2) is fixedly connected to the frame (1), the fixed plate (3) is fixedly connected to the front side of the support arm (2), the upper hydraulic press (4) is fixedly connected to the upper side of the support arm (2), and the pressure head (11) is fixedly connected to the bottom of the piston rod (8) of the upper hydraulic press (4). A top plate (5) is fixedly connected to the middle of the piston rod (8) of the upper hydraulic press (4). Several first sliding rods (9) are connected between the top plate (5) and the pressure head (11). Several sliding sleeves are provided on the fixed plate (3). The first sliding rods (9) pass through the sliding sleeves and slide with the sliding sleeves. A bottom plate (6) is provided below the pressure head (11). A support mechanism (7) is provided on the bottom plate (6). A mold (12) is provided on the support mechanism (7). A groove (10) is provided on the mold (12). The groove (10) cooperates with the pressure head (11).

2. The compression mechanism of a tablet press according to claim 1, wherein The support mechanism (7) includes a base (701), a lower hydraulic press (703), a return spring (704), a moving head (705), and a second slide rod (706). The base (701) is fixedly connected to the base plate (6). The lower hydraulic press (703) is provided on the base (701). The moving head (705) is fixedly connected to the upper end of the piston rod of the lower hydraulic press (703). The return spring (704) is connected between the moving head (705) and the outer wall of the lower hydraulic press (703). The moving head (705) passes through the frame (1). The mold (12) is fixedly connected to the top of the moving head (705). Several second slide rods (706) are fixedly connected to the bottom end of the mold (12). Several sliding sleeves are provided on the frame (1). The second slide rods (706) pass through the sliding sleeves and slide in cooperation with the sliding sleeves.

3. A compression mechanism of a tablet machine according to claim 2, wherein A pressure sensor (707) is provided between the moving head (705) and the mold (12).

4. The compression mechanism of a tablet press according to claim 2, wherein The base (701) is a lifting base, and an adjustment handle (702) is provided on the base (701).

5. The compression mechanism of a tablet press according to claim 2, wherein A cam is fixedly connected to the bottom end of the second slide bar (706), and the diameter of the cam is larger than the diameter of the slide sleeve on the frame (1).

6. The compression mechanism of a tablet press according to claim 2, wherein A ring seat (13) is fixedly connected to the frame (1). The moving head (705) passes through the ring seat (1) and passes through the frame (1). The sliding sleeve on the frame (1) is set on the ring seat (13).

7. The pressing mechanism of a tablet press according to claim 1, characterized in that, A through hole is provided on the fixed plate (3), and the piston rod (8) passes through the through hole without contacting the hole wall.

8. The compression mechanism of a tablet press according to claim 1, wherein The support arm (2) is in the shape of a broken line. The vertical arm of the support arm (2) is fixedly connected to the frame (1), and the upper hydraulic press (4) is installed on the horizontal arm of the support arm (2).

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