A nanocomposite coating reinforced tablet press die

Abstract

The utility model is suitable for tablet press mould technical field provides a kind of nanometer composite coating reinforced tablet press mould, including support frame, electric push rod is installed in the support frame, the output shaft outer sleeve of electric push rod is equipped with sleeve plate, upper mould is installed in the sleeve plate, lower mould is installed in the support frame, replacement device is installed in the sleeve plate. In the utility model, two mounting plates are rotated clockwise, so that they slide in the mounting groove. With the rotation process, one of the mounting plates will exert a squeezing force on the slide rod, causing the slide rod to move in the direction of the locking plate. When the mounting plate and the slide rod are in the corresponding position, the return spring releases the elastic force after being compressed, pushing the moving plate to drive the slide rod to slide in the opposite direction. The end of the slide rod is inserted into the mounting plate. Through the above actions, the automatic locking and positioning of the upper mould are completed, the quick installation or replacement operation of the upper mould is realized, and manual disassembly of bolts is not required, significantly improving the replacement efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of tablet compression mold technology, and in particular relates to a tablet compression mold reinforced with a nano-composite coating. Background Technology

[0002] The CrAlTiN-based nanocomposite coating reinforces tableting molds, primarily used to improve the wear resistance and service life of tableting molds under long-term high pressure and high friction environments. The working surface of the mold is coated with a CrAlTiN-based nanocomposite coating, which forms a dense and high-hardness film structure through multi-element co-deposition. It has excellent wear resistance, corrosion resistance, and oxidation resistance. Compared with traditional uncoated molds, this mold can significantly reduce surface wear and adhesion in continuous tableting operations, reduce mold replacement frequency, and extend service life by about 2 to 3 times, thereby effectively improving the stability and economy of tableting production.

[0003] Currently, tableting molds are prone to wear, powder adhesion, or oxidation during long-term high-pressure repeated use, affecting the surface quality and density of the pressed products. To improve the wear resistance and oxidation resistance of the molds, existing technologies have adopted CrAlTiN-based nanocomposite coatings as a surface strengthening method. This coating forms a dense, high-hardness film layer through multi-element co-deposition, which can reduce mold wear and improve anti-adhesion performance to a certain extent. However, even with the use of nanocomposite coatings such as CrAlTiN, the daily maintenance and replacement of the molds have not been well resolved: replacing the upper mold usually requires disassembling bolts or pulling out connecting pins, which is cumbersome, time-consuming, and affects the continuity of production; after pressing, powder or impurities may still remain in the mold cavity. Existing cleaning measures have a single spray direction and many blind spots, often requiring manual secondary cleaning. Utility Model Content

[0004] This utility model provides a nanocomposite coating reinforced tablet mold, aiming to solve the problem that even with the use of nanocomposite coatings such as CrAlTiN, the daily maintenance and replacement of the mold is still not well solved in the existing technology: replacing the upper mold usually requires disassembling bolts or pulling out connecting pins, which is cumbersome, time-consuming and affects the continuity of production.

[0005] This utility model is implemented as follows: a nano-composite coating reinforced tablet mold includes a support frame, an electric push rod installed inside the support frame, a sleeve plate surrounding the output shaft of the electric push rod, an upper mold installed inside the sleeve plate, a lower mold installed inside the support frame, a replacement device installed inside the sleeve plate, and cleaning devices symmetrically installed inside the sleeve plate. The replacement device includes two mounting plates, two mounting slots, and a locking plate. The two mounting plates are symmetrically mounted on the outside of the upper mold, and the two mounting slots are symmetrically opened inside the sleeve plate. The mounting plates are set in the mounting slots, and the locking plate is fixedly connected to the outside of the sleeve plate. A sliding rod is provided through the locking plate, and a moving plate is provided on the outer sleeve of the sliding rod. A return spring is provided on the outer sleeve of the sliding rod.

[0006] Preferably, one end of the reset spring is fixedly connected to the movable plate, and the other end of the reset spring is fixedly connected to the locking plate.

[0007] Preferably, the locking plate and the slide rod form a sliding connection.

[0008] Preferably, the mounting groove is L-shaped and has an opening at the bottom.

[0009] Preferably, the cleaning device includes an air pump and two connecting slots. The air pump is fixedly connected to the upper surface of the sleeve plate, and an air pipe is installed at the output end of the air pump. A nozzle is installed at the lower end of the air pipe.

[0010] Preferably, the two connecting slots are symmetrically opened inside the sleeve plate, and the air pipe is arranged inside the connecting slot.

[0011] Preferably, the nozzle is inclined and its position corresponds to that of the lower mold.

[0012] Compared with related technologies, the nanocomposite coating reinforced tablet mold provided by this utility model has the following beneficial effects: In this invention, by setting up a replacement device, when it is necessary to install or replace the upper mold, the operator first pulls the two mounting plates to make the upper mold snap into the sleeve plate and the mounting groove. The two mounting plates are then rotated clockwise to slide within the mounting groove. As the rotation proceeds, one of the mounting plates applies a compressive force to the sliding rod, causing the sliding rod to move along the direction of the locking plate. When the mounting plate and the sliding rod are aligned, the return spring is compressed and releases its elastic force, pushing the moving plate to cause the sliding rod to slide in the opposite direction, and the end of the sliding rod snaps into the mounting plate. Through the above actions, the automatic locking and positioning of the upper mold is completed, realizing the rapid installation or replacement of the upper mold without the need for manual disassembly of bolts, which significantly improves the replacement efficiency.

[0013] In this invention, by setting up a cleaning device, after the pressing operation is completed, the upper mold and the lower mold are separated. At this time, the air pump is started, and the gas output from the air pump is transmitted through the air pipe and sprayed out from the nozzle. The two nozzles are distributed at an angle and correspond to the position of the lower mold. During the spraying process, the surface of the lower mold and the inside of the mold cavity can be thoroughly blown away, so that residual powder and impurities are quickly discharged, and the cleaning operation is completed. Through this cleaning process, product contamination or mold wear caused by powder residue is avoided, and the automatic cleaning function after pressing is realized, ensuring the long-term stable operation of the mold. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the replacement device of this utility model; Figure 3 This utility model Figure 2 Enlarged structural diagram of part A in the middle; Figure 4 This is a three-dimensional structural diagram of the cleaning device of this utility model.

[0015] In the diagram: 1. Support frame; 2. Electric push rod; 3. Sleeve plate; 4. Lower mold; 5. Upper mold; 6. Replacement device; 601. Mounting slot; 602. Mounting plate; 603. Locking plate; 604. Slide rod; 605. Moving plate; 606. Return spring; 7. Cleaning device; 701. Air pump; 702. Connecting slot; 703. Air pipe; 704. Nozzle. Detailed Implementation

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0017] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Example 1

[0018] A preferred embodiment of the nanocomposite coating reinforced tableting mold provided by this utility model is as follows: Figures 1 to 3 As shown: A nano-composite coating reinforced tablet mold includes a support frame 1, an electric push rod 2 installed inside the support frame 1, a sleeve plate 3 sleeved on the output shaft of the electric push rod 2, an upper mold 5 installed inside the sleeve plate 3, a lower mold 4 installed inside the support frame 1, a replacement device 6 installed inside the sleeve plate 3, and cleaning devices 7 symmetrically installed inside the sleeve plate 3. The replacement device 6 includes two mounting plates 602, two mounting slots 601, and a locking plate 603. The two mounting plates 602 are symmetrically mounted on the outside of the upper mold 5, and the two mounting slots 601 are symmetrically opened in the sleeve plate 3. The mounting plates 602 are set in the mounting slots 601. The locking plate 603 is fixedly connected to the outside of the sleeve plate 3. A sliding rod 604 is provided through the locking plate 603. A moving plate 605 is provided on the outside of the sliding rod 604. A return spring 606 is provided on the outside of the sliding rod 604.

[0019] In this embodiment, the slide bar 604 passes through the locking plate 603 and slides in cooperation with the moving plate 605. When the moving plate 605 is pushed by force, it can move smoothly along the direction of the slide bar 604, achieving precise displacement control and avoiding jamming, thereby ensuring the stability of the upper mold 5 during the replacement process.

[0020] In a further preferred embodiment of the present invention, one end of the reset spring 606 is fixedly connected to the movable plate 605, and the other end of the reset spring 606 is fixedly connected to the locking plate 603. The locking plate 603 and the slide rod 604 form a sliding connection. The mounting groove 601 is L-shaped, and an opening is provided at the bottom of the mounting groove 601.

[0021] In this embodiment, the reset spring 606 is sleeved on the outside of the slide bar 604. When the moving plate 605 is moved by an external force, the reset spring 606 can quickly provide a rebound force, so that the moving plate 605 automatically returns to its original position, thereby improving the reset efficiency of the structure and reducing manual operation steps. Example 2

[0022] Based on Example 1, a preferred embodiment of the nanocomposite coating reinforced tableting mold provided by this utility model is as follows: Figure 4 As shown: The cleaning device 7 includes an air pump 701 and two connecting slots 702. The air pump 701 is fixedly connected to the upper surface of the sleeve plate 3. An air pipe 703 is installed at the output end of the air pump 701. A nozzle 704 is installed at the lower end of the air pipe 703. The two connecting slots 702 are symmetrically opened in the sleeve plate 3. The air pipe 703 is set in the connecting slots 702. The nozzle 704 is set in an inclined shape, and the nozzle 704 is positioned corresponding to the lower mold 4.

[0023] In this embodiment, the nozzle 704 is set to be inclined and facing the surface of the lower mold 4. During the cleaning process, it can form a directional airflow to effectively blow away residual powder on the surface of the lower mold 4 and avoid particle accumulation that would lead to a decrease in tableting accuracy.

[0024] In summary, by setting the replacement device 6, when it is necessary to install or replace the upper mold 5, the operator first pulls the two mounting plates 602, causing the upper mold 5 to engage with the sleeve plate 3 and the mounting groove 601. The two mounting plates 602 are then rotated clockwise, allowing them to slide within the mounting groove 601. As the rotation proceeds, one of the mounting plates 602 applies a compressive force to the slide rod 604, causing the slide rod 604 to move along the direction of the locking plate 603. When the mounting plate 602 and the slide rod 604 are aligned, the return spring 606 is compressed and releases its tension. Force is applied to push the moving plate 605 to drive the slide bar 604 to slide in the opposite direction, and the end of the slide bar 604 is locked into the mounting plate 602. By setting the cleaning device 7, after the pressing operation is completed, the upper mold 5 and the lower mold 4 are separated. At this time, the air pump 701 is started. The gas output from the air pump 701 is transmitted through the air pipe 703 and sprayed out from the nozzle 704. The two nozzles 704 are distributed at an angle and correspond to the position of the lower mold 4. During the spraying process, the surface of the lower mold 4 and the inside of the mold cavity can be thoroughly blown away, so that residual powder and impurities are quickly discharged.

[0025] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0026] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A nanocomposite coating reinforced tableting mold, characterized in that, include: A support frame (1) is provided, an electric push rod (2) is installed inside the support frame (1), a sleeve plate (3) is provided on the output shaft of the electric push rod (2), an upper mold (5) is installed inside the sleeve plate (3), a lower mold (4) is installed inside the support frame (1), a replacement device (6) is installed inside the sleeve plate (3), and a cleaning device (7) is symmetrically installed inside the sleeve plate (3). The replacement device (6) includes two mounting plates (602), two mounting slots (601), and a locking plate (603). The two mounting plates (602) are symmetrically mounted on the outside of the upper mold (5), and the two mounting slots (601) are symmetrically opened in the sleeve plate (3). The mounting plates (602) are set in the mounting slots (601). The locking plate (603) is fixedly connected to the outside of the sleeve plate (3). A sliding rod (604) is provided through the locking plate (603). A moving plate (605) is provided on the sliding rod (604), and a return spring (606) is provided on the sliding rod (604).

2. The nanocomposite coating reinforced tablet mold as described in claim 1, characterized in that, One end of the reset spring (606) is fixedly connected to the movable plate (605), and the other end of the reset spring (606) is fixedly connected to the locking plate (603).

3. The nanocomposite coating reinforced tablet mold as described in claim 1, characterized in that, The locking plate (603) and the slide bar (604) are connected in a sliding manner.

4. The nanocomposite coating reinforced tableting mold as described in claim 1, characterized in that, The mounting groove (601) is L-shaped, and an opening is provided at the bottom of the mounting groove (601).

5. The nanocomposite coating reinforced tablet mold as described in claim 4, characterized in that, The cleaning device (7) includes an air pump (701) and two connecting slots (702). The air pump (701) is fixedly connected to the upper surface of the sleeve plate (3). An air pipe (703) is installed at the output end of the air pump (701), and a nozzle (704) is installed at the lower end of the air pipe (703).

6. The nanocomposite coating reinforced tablet mold as described in claim 5, characterized in that, Two connecting slots (702) are symmetrically opened in the sleeve plate (3), and the air pipe (703) is arranged in the connecting slot (702).

7. The nanocomposite coating reinforced tablet mold as described in claim 6, characterized in that, The nozzle (704) is set in an inclined position, and the nozzle (704) is positioned relative to the lower mold (4).

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