A tablet compression die quick fixing mechanism

Abstract

The utility model provides a tablet compression mould quick fixing mechanism belongs to tablet production equipment technical field, this tablet compression mould quick fixing mechanism, including tablet compression platform, the top fixed connection of tablet compression platform has the connecting seat, the upside of connecting seat is equipped with the lower pressing plate, the built -in pressure sensor of lower pressing plate, the first clamping groove of aligning the second arc -shaped clamping block of tablet mould body to the clamping sleeve and pushes down, makes second arc -shaped clamping block clamps into first clamping groove and limit groove, and at the same time, tablet mould body bottom extrudes first arc -shaped clamping block, waits for second clamping groove and first arc -shaped clamping block alignment, spring rebound promotes first arc -shaped clamping block clamps into second clamping groove, can complete fixed, when unlocking, through the cylinder drive second pull -down plate lower pull fixed link, makes first arc -shaped clamping block separate from second clamping groove, can take out the mould, the whole process does not need to help the tool, and the operation is simple, and the mould changing time is greatly shortened, can quickly adapt the production switching demand of many specifications tablets.

Description

Technical Field

[0001] This utility model belongs to the technical field of tablet production equipment, specifically relating to a quick fixing mechanism for tablet compression molds. Background Technology

[0002] In the tablet manufacturing industry, the tablet compression mold is the core component that determines the key parameters of tablet shape, size, hardness, etc. The accuracy and efficiency of its installation and fixing directly affect the production quality and efficiency of tablets. In the field of tablet manufacturing equipment, the fixing effect and replacement efficiency of tableting molds are crucial to tablet production efficiency and molding quality. Existing tableting mold fixing mechanisms mostly adopt traditional bolt connections or single-slot limiting designs, which have significant drawbacks: bolt-connected mechanisms require tools to disassemble and assemble bolts when changing molds of different specifications, making the operation cumbersome and time-consuming, and difficult to adapt to the production needs of rapid switching between multiple tablet sizes; single-slot limiting structures can only achieve unidirectional positioning, and are prone to lateral or longitudinal displacement of the mold during high-pressure tableting, resulting in uneven tablet thickness and rough edges. At the same time, most mechanisms lack pressure monitoring functions, making it impossible to control tableting pressure in real time, which can easily cause mold damage or tablet quality problems due to improper pressure; furthermore, some mechanisms have exposed metal bases, which can easily scratch operators when loading and unloading molds, and the vibration of the mechanism is not effectively buffered, affecting both safety and tableting accuracy.

[0003] To address the problems of low mold replacement efficiency, poor positioning stability, lack of pressure control, and insufficient operational safety in existing mechanisms, this utility model aims to provide a rapid fixing mechanism for tablet compression molds: It replaces traditional bolt connections with multi-dimensional slotted joints and automatic elastic locking components, enabling rapid mold installation and unlocking; it adds a multi-directional positioning and limiting structure to enhance mold fixing stability and prevent displacement during tableting; a built-in pressure sensor monitors tableting pressure in real time, ensuring tablet quality and mold safety; and it optimizes the mechanism's protection and shock absorption design, adding a plastic sleeve for protection and vibration buffering, improving operational safety and tableting accuracy to meet the needs of efficient and precise tablet production. Utility Model Content

[0004] The purpose of this utility model is to provide a quick fixing mechanism for tablet compression molds, which aims to solve the problems of cumbersome operation, time-consuming replacement of different specifications of molds, and difficulty in adapting to the needs of quick switching of multiple specifications of tablets in the existing traditional mold fixing methods (such as bolt fastening and single limit) in the prior art; and the single limiting dimension of the fixing structure for the mold, which is prone to lateral displacement or longitudinal movement of the mold during high pressure tableting, resulting in poor tablet forming accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A tablet compression mold quick-fixing mechanism includes: A tablet pressure stage, wherein a connecting seat is fixedly connected to the top of the tablet pressure stage, a lower pressure plate is provided on the upper side of the connecting seat, a pressure sensor is built into the lower pressure plate, a tablet mold body is movably engaged with the outer surface of the lower pressure plate, an upper pressure block is movably engaged with the tablet mold body, an upper pressure plate is fixedly connected to the top of the upper pressure block, a retaining sleeve is fixedly connected to the circumferential surface of the tablet mold body, two first retaining slots and two mounting slots are respectively opened at the upper and lower ends of the retaining sleeve, and two second retaining slots are opened at the bottom end of the tablet mold body; and Two sets of fixing mechanisms are respectively located in two mounting slots, and the two sets of fixing mechanisms respectively limit the bottom of the tablet mold body on the left and right sides.

[0006] As a preferred embodiment of this utility model, one set of the fixing mechanisms includes: A fixing plate, wherein the fixing plate is fixedly connected to one of the mounting slots; The first arc-shaped locking block is movably engaged in one of the mounting slots; A fixing rod is fixedly connected to the bottom end of the first arc-shaped locking block, and the fixing rod is slidably connected inside the fixing plate; Two springs are respectively fixedly connected to the adjacent ends of the first arc-shaped locking block and the fixing plate.

[0007] As a preferred embodiment of this utility model, two second arc-shaped locking blocks are fixedly connected to the circumferential surface of the tablet mold body. The two second arc-shaped locking blocks are respectively movably locked into two first locking slots. Limiting grooves are formed on the lower inner walls of the two first locking slots, and the two second arc-shaped locking blocks are respectively movably locked into the limiting grooves.

[0008] In a preferred embodiment of this utility model, a second pulling plate is fixedly connected to the bottom end of the two fixed rods, and two cylinders are fixedly connected to the bottom end of the second pulling plate. Both cylinders are fixedly connected to the top of the tablet pressure table.

[0009] In a preferred embodiment of this utility model, the lower pressure plate is movably engaged with two limiting rods, and the two limiting rods are slidably connected to the two tablet mold bodies.

[0010] As a preferred embodiment of this utility model, a plastic sleeve is fixedly connected to the outer surface of the tablet pressure table, and a first pull plate is fixedly connected to the circumferential surface of the two limiting rods.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. In this solution, a multi-dimensional slotted engagement and automatic elastic locking assembly are used to replace the traditional bolt connection. Specifically, a sleeve is fixedly connected to the circumferential surface of the tablet mold body. The upper and lower ends of the sleeve are respectively provided with a first slot and an installation slot. A fixing mechanism is set in the installation slot, which includes a fixing plate, a first arc-shaped locking block, a fixing rod, and a spring. At the same time, a second arc-shaped locking block is fixed to the circumferential surface of the tablet mold body, which can engage with the first slot and the limiting slot. When installing the mold, simply align the second arc-shaped locking block of the tablet mold body with the first slot of the sleeve and push it downwards so that the second arc-shaped locking block engages with the first slot and the limiting slot. Simultaneously, the bottom end of the tablet mold body squeezes the first arc-shaped locking block. When the second slot and the first arc-shaped locking block are aligned, the spring rebounds and pushes the first arc-shaped locking block into the second slot, thus completing the fixing. When unlocking, the cylinder drives the second pulling plate to pull down the fixing rod, so that the first arc-shaped locking block disengages from the second slot, and the mold can be removed. The whole process does not require tools, is easy to operate, greatly shortens the mold change time, and can quickly adapt to the production switching needs of multi-specification tablets.

[0012] 2. In this solution, a multi-directional positioning and limiting structure is added. First, the first slot of the ferrule cooperates with the second arc-shaped block of the tablet mold body to achieve positioning of the upper side of the mold. Second, the limiting groove opened on the lower inner wall of the first slot further limits the second arc-shaped block to prevent longitudinal movement. Third, the fixing mechanism in the mounting groove limits the bottom of the tablet mold body from the left and right sides, and cooperates with the lower pressure plate to lock the bottom of the mold to achieve multi-dimensional positioning and fixing of the mold. In addition, the two limiting rods that are movably locked by the lower pressure plate are slidably connected to the tablet mold body to further limit the lateral displacement of the mold. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a perspective view of the present utility model; Figure 2 This is a first-view sectional perspective view of the present invention; Figure 3 This is a first-person exploded perspective view of the present invention; Figure 4 In this utility model Figure 3 A magnified view of part A.

[0014] In the diagram: 1. Tablet pressure table; 2. Plastic sleeve; 3. Upper pressure plate; 301. Upper pressure block; 4. Sleeve; 401. First slot; 402. Mounting slot; 5. Limiting slot; 6. Cylinder; 7. First pulling plate; 8. Tablet mold body; 801. Second slot; 802. Second arc-shaped locking block; 9. Lower pressure plate; 901. Pressure sensor; 10. Limiting rod; 11. First arc-shaped locking block; 12. Fixing plate; 13. Fixing rod; 14. Spring; 15. Second pulling plate; 16. Connecting seat. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1 Please see Figures 1-4 The present invention provides the following technical solution: A tablet compression mold quick-fixing mechanism includes: A tablet pressure stage 1 has a connecting seat 16 fixedly connected to its top. A lower pressure plate 9 is located on the upper side of the connecting seat 16. A pressure sensor 901 is built into the lower pressure plate 9. A tablet mold body 8 is movably engaged with the outer surface of the lower pressure plate 9. An upper pressure block 301 is movably engaged with the inside of the tablet mold body 8. The top of the upper pressure block 301 is fixedly connected to the upper pressure plate 3. A retaining sleeve 4 is fixedly connected to the circumferential surface of the tablet mold body 8. Two first retaining slots 401 and two mounting slots 402 are respectively opened at the upper and lower ends of the retaining sleeve 4. Two second retaining slots 801 are opened at the bottom end of the tablet mold body 8. Two sets of fixing mechanisms are respectively located in two mounting slots 402, and the two sets of fixing mechanisms respectively limit the bottom of the tablet mold body 8 on the left and right sides.

[0017] In a specific embodiment of this utility model, the tablet pressure table 1 serves as an integral base, bearing and fixing each core component, providing stable support, preventing the mechanism from shaking during tableting, ensuring a stable connection with the tablet press host, and serving as the basic platform for tableting operations. The connecting support 16 connects the tablet pressure table 1 and the lower pressure plate 9, achieving rigid fixation between the two, ensuring that the lower pressure plate 9 remains horizontal and stable, transmitting support force, preventing deformation or displacement of the lower pressure plate 9, and ensuring the stability of the lower reference surface of the tablet. The lower pressure plate 9 is fixed to the bottom of the tablet mold body 8 by a movable latch, which restricts the lateral displacement of the tablet mold body 8. At the same time, it serves as the lower extrusion reference and cooperates with the upper pressure block 301 to form a material extrusion space and bear the tableting reaction force. The pressure sensor 901 is built into the lower pressure plate 9, which collects the extrusion pressure data between the upper pressure block 301 and the lower pressure plate 9 in real time, converts it into an electrical signal and transmits it to the control system. When the pressure exceeds the preset range, it helps to adjust the force of the upper pressure plate 3 to avoid the production of unqualified tablets or equipment damage. The tablet mold body 8 has a forming cavity inside, which is used to load the material to be compressed. It works with the upper pressure block 301 and the lower pressure plate 9 to compress the material in the cavity into tablets with a set shape, size and hardness under pressure. It is the core carrier for tableting. The upper pressure block 301 is movable and fits into the forming cavity of the tablet mold body 8. When it moves downward, it can be precisely embedded in the cavity, receive the pressure transmitted by the upper pressure plate 3 and apply it evenly to the material, and cooperate with the lower pressure plate 9 to achieve material compression molding. The upper pressure plate 3 receives external power such as hydraulic cylinders and air cylinders, and transmits the converted power pressure evenly to the upper pressure block 301. The upper pressure block 301 is fixedly connected to ensure its coaxiality with itself and to prevent the upper pressure block 301 from shifting. It is the core component for upper pressure transmission. The sleeve 4 is fixed on the circumferential surface of the tablet mold body 8. After being sleeved, it enhances the rigidity of the tablet mold body 8 and prevents its radial deformation. The first slot 401 at the upper end and the mounting slot 402 at the lower end provide installation space for the auxiliary positioning component and the fixing mechanism, respectively. The first slot 401 is located on the upper end of the sleeve 4, and there are two slots in total. They cooperate with the positioning structure of the upper component such as the upper pressure plate 3 to calibrate the coaxiality of the tablet mold body 8 and the upper pressure block 301 and prevent tablet misalignment. When the upper pressure block 301 moves upward, it restricts the tablet mold body 8 from moving and prevents it from detaching from the lower pressure plate 9. There are two mounting slots 402 located at the lower end of the sleeve 4. These slots are used to fix two sets of fixing mechanisms, preventing the fixing mechanisms from shifting laterally. The slot structure restricts the direction of movement of the fixing mechanisms, ensuring that they only move in the direction of the second slot 801, thereby improving the reliability of fixing. The second slot 801 is located at the bottom of the tablet mold body 8, and there are two slots in total. They cooperate with the moving parts of the fixing mechanism. After the parts are inserted, they form a mechanical lock, fixing the bottom of the tablet mold body 8. After locking, there is no gap and it is easy to unlock, ensuring the mold is fixed and stable. Two sets of fixing mechanisms are located in the mounting slot 402. They are the core execution components for quick fixing and can quickly lock and fix the tablet mold body 8. The symmetrical arrangement on the left and right ensures that the bottom of the tablet mold body 8 is evenly stressed. The unlocking operation is simple, which greatly shortens the mold replacement time and is compatible with the switching of multiple mold specifications.

[0018] Please refer to the details. Figures 1-4One set of fixed mechanisms includes: The fixing plate 12 is fixedly connected to one of the mounting slots 402; The first arc-shaped locking block 11 is movably locked into one of the mounting slots 402; The fixing rod 13 is fixedly connected to the bottom end of the first arc-shaped locking block 11, and the fixing rod 13 is slidably connected to the fixing plate 12. Two springs 14 are fixedly connected to the near ends of the first arc-shaped block 11 and the fixing plate 12, respectively.

[0019] In this embodiment: when the tablet mold body 8 is snapped down onto the lower pressure plate 9, the bottom end of the mold will first contact the arc surface of the first arc-shaped locking block 11 and exert downward pressure on the first arc-shaped locking block 11; this pressure pushes the first arc-shaped locking block 11 to move downward along the guide of the fixing rod 13, while compressing the two springs 14; as the mold continues to descend, when the second locking groove 801 at the bottom end of the mold moves to align with the first arc-shaped locking block 11, the compression state of the spring 14 is released, and the elastic force pushes the first arc-shaped locking block 11 to pop up and accurately snap into the second locking groove 801. At this time, the first arc-shaped locking block 11 is limited by the locking groove, and the bottom of the tablet mold body 8 is firmly fixed in the corresponding position of the mounting groove 402, thus completing the rapid fixing of the mold.

[0020] Please refer to the details. Figures 1-3 Two second arc-shaped locking blocks 802 are fixedly connected to the circumferential surface of the tablet mold body 8. The two second arc-shaped locking blocks 802 are respectively movably locked in the two first locking slots 401. Limiting grooves 5 are opened on the lower inner walls of the two first locking slots 401. The two second arc-shaped locking blocks 802 are respectively movably locked in the limiting grooves 5.

[0021] In this embodiment: the two second arc-shaped locking blocks 802 fixed around the circumference of the tablet mold body 8, because the arc structure is adapted to the inner wall of the first locking groove 401, firstly move and lock into the two first locking grooves 401 of the sleeve 4 to achieve rapid positioning of the upper side of the mold; at the same time, the second arc-shaped locking blocks 802 then lock into the limiting groove 5 on the lower inner wall of the first locking groove 401 to form a double longitudinal limiting, which prevents the mold from moving up and down during tableting and further enhances the connection stability between the mold and the sleeve 4.

[0022] Please refer to the details. Figure 2 The bottom ends of the two fixed rods 13 are fixedly connected to a second pull plate 15, and the bottom ends of the second pull plate 15 are fixedly connected to two cylinders 6. Both cylinders 6 are fixedly connected to the top of the tablet pressure table 1.

[0023] In this embodiment: the bottom ends of the two fixed rods 13 are connected to the second pulling plate 15, forming a synchronous linkage structure; the bottom end of the second pulling plate 15 is fixed to the two cylinders 6, and the cylinders 6 are stably installed on the top of the tablet pressure table 1. When unlocking the fixing mechanism, the cylinders 6 drive the second pulling plate 15 to move downward, which drives the fixed rods 13 to pull down the first arc-shaped locking block 11 synchronously, so that it is disengaged from the second locking slot 801, realizing automatic unlocking without manual pressing, thus improving operation efficiency.

[0024] Please refer to the details. Figures 1-4 The lower pressure plate 9 is movably engaged with two limit rods 10, which are slidably connected to the two tablet mold bodies 8.

[0025] In this embodiment, two limiting rods 10, which are movably engaged on the lower pressure plate 9, slide into the pre-set guide holes in the tablet mold body 8. The limiting rods 10 restrict the horizontal displacement of the tablet mold body 8, ensuring the coaxiality of the mold and the upper pressure block 301, and guaranteeing the tableting accuracy.

[0026] Please refer to the details. Figures 1-3 A plastic sleeve 2 is fixedly connected to the outer surface of the tablet pressure table 1, and a first pull plate 7 is fixedly connected to the circumferential surface of the two limit rods 10.

[0027] In this embodiment: the plastic sleeve 2 covering the outer surface of the tablet pressure table 1 can buffer the vibration generated by the mechanism during tableting, preventing vibration from affecting the tableting accuracy; at the same time, the plastic sleeve 2 can isolate the metal edge of the pressure table, preventing operators from being scratched when loading and unloading the mold, thus having both shock absorption and protection functions. The first pull plate 7 fixed to the circumferential surface of the two limiting rods 10 provides the operator with a convenient force application point. When disassembling the mold, simply pull the first pull plate 7 to drive the limiting rods 10 away from the tablet mold body 8, simplifying the manual operation steps.

[0028] The working principle and usage process of this utility model are as follows: When using the tablet compression mold quick fixing mechanism, first hold the tablet mold body 8, align the second arc-shaped locking block 802 on its circumference with the first locking groove 401 of the sleeve 4, and push it downwards so that the second arc-shaped locking block 802 is inserted into the first locking groove 401 and the limiting groove 5 on the lower inner wall. At the same time, the bottom end of the tablet mold body 8 engages with the lower pressure plate 9. During the downward movement, the bottom end of the mold presses the first arc-shaped locking block 11, compressing the spring 14. When the second locking groove 801 is aligned with the first arc-shaped locking block 11, the spring 14 rebounds and pushes the first arc-shaped locking block. 11 is inserted into the second slot 801 to complete the fixation, and then the first pulling plate 7 pushes the limiting rod 10 into the tablet mold body 8 for reinforcement; during tableting, the pressure sensor 901 monitors the pressure in real time and transmits it to the control system. The external power drives the upper pressure plate 3 to move the upper pressure block 301 downward to squeeze the material. The system adjusts the force according to the pressure data; when changing the mold, the starting cylinder 6 drives the second pulling plate 15 to pull down the fixing rod 13, so that the first arc-shaped locking block 11 is disengaged from the second slot 801, the first pulling plate 7 is pulled to pull out the limiting rod 10, and finally the tablet mold body 8 is taken out upward.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-fixing mechanism for tablet compression molds, characterized in that, include: A tablet pressure table (1) is provided, with a connecting seat (16) fixedly connected to the top of the tablet pressure table (1). A lower pressure plate (9) is provided on the upper side of the connecting seat (16). A pressure sensor (901) is built into the lower pressure plate (9). A tablet mold body (8) is movably engaged on the outer surface of the lower pressure plate (9). An upper pressure block (301) is movably engaged inside the tablet mold body (8). An upper pressure plate (3) is fixedly connected to the top of the upper pressure block (301). A retainer (4) is fixedly connected to the circumferential surface of the tablet mold body (8). Two first retaining grooves (401) and two mounting grooves (402) are respectively opened at the upper and lower ends of the retainer (4). Two second retaining grooves (801) are opened at the bottom end of the tablet mold body (8). Two sets of fixing mechanisms are respectively located in two mounting slots (402), and the two sets of fixing mechanisms respectively limit the bottom of the tablet mold body (8) on the left and right sides.

2. The tablet compression mold quick-fixing mechanism according to claim 1, characterized in that: One set of the fixing mechanisms includes: A fixing plate (12) is fixedly connected to one of the mounting slots (402); The first arc-shaped locking block (11) is movably locked into one of the mounting slots (402); A fixing rod (13) is fixedly connected to the bottom end of the first arc-shaped block (11), and the fixing rod (13) is slidably connected inside the fixing plate (12); Two springs (14) are fixedly connected to the adjacent ends of the first arc-shaped block (11) and the fixing plate (12), respectively.

3. The tablet compression mold quick-fixing mechanism according to claim 2, characterized in that: Two second arc-shaped locking blocks (802) are fixedly connected to the circumferential surface of the tablet mold body (8). The two second arc-shaped locking blocks (802) are respectively movably locked in the two first locking slots (401). The lower inner wall of the two first locking slots (401) is provided with a limiting groove (5). The two second arc-shaped locking blocks (802) are respectively movably locked in the limiting groove (5).

4. The tablet compression mold quick-fixing mechanism according to claim 3, characterized in that: The bottom ends of the two fixed rods (13) are fixedly connected to a second pull plate (15), and the bottom ends of the second pull plate (15) are fixedly connected to two cylinders (6). The two cylinders (6) are fixedly connected to the top of the tablet pressure table (1).

5. The tablet compression mold quick-fixing mechanism according to claim 4, characterized in that: The lower pressure plate (9) is movably engaged with two limiting rods (10), and the two limiting rods (10) are slidably connected within the two tablet mold bodies (8).

6. The tablet compression mold quick-fixing mechanism according to claim 5, characterized in that: A plastic sleeve (2) is fixedly connected to the outer surface of the tablet pressure table (1), and a first pull plate (7) is fixedly connected to the circumferential surface of the two limiting rods (10).

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