A tablet compression molding apparatus capable of self-adapting tablet thickness

Abstract

This invention discloses a tablet compression molding device with adaptive tablet thickness, including a molding box. A lifting hydraulic cylinder is fixed to the top of the molding box, and a lower pressure plate is fixed to the telescopic end of the lifting hydraulic cylinder. Five pressure columns are fixed to the lower surface of the lower pressure plate, and a sleeve is fixed to the middle position inside the molding box. By designing a drive component and a cleaning and scraping component, when the telescopic hydraulic cylinder drives the bottom plate into the collection box, the upper surface of the bottom plate first contacts the surface of the flexible scraper, which facilitates the cleaning of the bottom plate surface by the flexible scraper. After the bottom plate is completely inside the collection box, one side of the flexible scraper detaches from the surface of the bottom plate and scrapes off the residual material, which falls into the collection box for collection. Therefore, it is convenient to clean the bottom plate during the compression operation. When pressing again, the bottom plate can still be in close contact with the bottom end of the sleeve for effective compression, improving the convenience of adjusting and cleaning the bottom plate during tablet compression molding.

Description

Technical Field

[0001] This invention belongs to the technical field of compression molding equipment, specifically relating to a tablet compression molding equipment that can adaptively adjust the tablet thickness. Background Technology

[0002] Tablets are tablet-shaped preparations made from drugs, pesticides, and suitable excipients using formulation technology. They consist of active ingredients, fillers, adsorbents, binders, lubricants, dispersants, wetting agents, disintegrants, fragrances, colorants, etc. The tablet manufacturing process requires the use of compression molding equipment to extrude and shape the powder. According to a tablet compression molding die disclosed in the authorized patent application No. 202422737290.X, existing compression molding equipment operates by having the base plate open and close via a drive gear to seal the bottom end of the sleeve. When the base plate is inserted into the sleeve for compression, the gear causes it to extend and retract, making it difficult to limit and fix the base plate. Furthermore, a small amount of residue remains on the surface of the base plate after it detaches from the bottom end of the sleeve, making cleaning difficult. During subsequent use, the base plate is obstructed at the bottom end and cannot make close contact with the bottom end of the sleeve, reducing the compression effect and affecting the convenience of adjusting and cleaning the base plate during tablet compression molding. Therefore, this invention proposes a tablet compression molding device that can adapt to the tablet thickness. Summary of the Invention

[0003] The purpose of this invention is to provide a tablet compression molding device that can adapt to the tablet thickness, in order to solve the problems mentioned in the background art, where when the compression molding device is used, it is not convenient to limit and fix the bottom plate after the gear drives the bottom plate to extend and retract, and a small amount of residual material remains on the surface of the bottom plate after it is separated from the bottom end of the sleeve, making it inconvenient to clean the surface residue. Furthermore, when it is used again, it is obstructed at the bottom end and cannot make close contact with the bottom end of the sleeve, thus reducing the compression effect.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a tablet compression molding device with adaptive tablet thickness, comprising a molding box, a lifting hydraulic cylinder fixed at the top of the inside of the molding box, a lower pressure plate fixed at the telescopic end of the lifting hydraulic cylinder, five pressure columns fixed on the lower surface of the lower pressure plate, a sleeve fixed at the middle position inside the molding box, a sleeve fixed inside the fixed support plate corresponding to the pressure columns, a bottom plate provided at the bottom end of the sleeve, a collection component provided on the rear surface of the bottom end of the molding box, a driving component provided between the end of the bottom plate and the rear surface of the molding box, and a cleaning and scraping component provided on the upper surface of the collection component; The pressure column is internally provided with an elastic connecting component, and the bottom end of the elastic connecting component is provided with a pressing component.

[0005] Preferably, a collection box is placed on the front surface of the bottom of the molding box, a protective door is installed on the front surface of the molding box via a hinge, and limit plates are welded to both sides of the inside of the molding box, with the lower surface of the bottom plate in surface support contact with the limit plates.

[0006] Preferably, the collection assembly includes a collection box disposed on the rear surface of the bottom end inside the molding box, the top side of the collection box having a through groove, and the bottom plate passing through the interior of the through groove and being movably connected.

[0007] Preferably, the drive assembly includes a telescopic hydraulic cylinder fixedly mounted on the rear surface of the molding box, the telescopic end of the telescopic hydraulic cylinder extending into the interior of the collection box and fixed to the end of the base plate by bolts.

[0008] Preferably, a support plate is fixedly installed on one side of the upper surface of the collection box by bolts, and a slot plate is integrally formed on the lower surface of the support plate.

[0009] Preferably, the cleaning and scraping assembly includes a card plate that engages inside the card slot plate, and a flexible scraper is integrally formed on the lower surface of the card plate.

[0010] Preferably, the elastic connection assembly includes a limiting groove formed inside the pressure column, a buffer rod is limited inside the limiting groove, and a spring is fixed between the top end of the buffer rod and the top end inside the limiting groove.

[0011] Preferably, the pressing assembly includes a pressing plate fixed to the bottom end of the buffer rod, and a flexible scraper ring is fixed to the edge of the upper surface of the pressing plate by screws, and both the surface of the pressing plate and the surface of the flexible scraper ring are in contact with the inner surface of the pressing column.

[0012] Compared with the prior art, the beneficial effects of the present invention are: By designing a drive assembly and a cleaning and scraping assembly, when the telescopic hydraulic cylinder drives the base plate into the collection box, the upper surface of the base plate first contacts the surface of the flexible scraper, facilitating the cleaning of the base plate surface by the flexible scraper. After the base plate is completely inside the collection box, one side of the flexible scraper detaches from the surface of the base plate and scrapes off the residual material, which falls into the collection box for collection. This facilitates cleaning of the base plate during the pressing operation. During the next pressing, the base plate can still be in close contact with the bottom end of the sleeve. At the same time, the telescopic hydraulic cylinder is less prone to instability when the base plate is extended, retracted, and closed under force, improving the convenience of adjusting and cleaning the base plate during tablet pressing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3For the present invention Figure 2 Enlarged structural diagram of section A; Figure 4 This is a side cross-sectional view of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram of section B; Figure 6 This is a partial cross-sectional view of the molding box, pressure column, and sleeve of the present invention before they are pressed. Figure 7 This is a partial cross-sectional view of the molding box, pressure column, and sleeve in the pressing state of the present invention. In the diagram: 101, forming box; 102, protective door; 103, lifting hydraulic cylinder; 104, lower pressure plate; 105, pressure column; 1051, buffer rod; 1052, pressure plate; 1053, limiting groove; 1054, spring; 1055, flexible scraper ring; 106, fixed support plate; 107, sleeve; 108, base plate; 1081, telescopic hydraulic cylinder; 1082, collection box; 1083, through groove; 1084, support plate; 1085, slot plate; 1086, clamping plate; 1087, flexible scraper; 109, collection box. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Please see Figures 1 to 7 The present invention provides a technical solution: a tablet compression molding device with adaptive tablet thickness, including a molding box 101, a lifting hydraulic cylinder 103 fixed at the top of the inside of the molding box 101, a lower pressure plate 104 fixed at the telescopic end of the lifting hydraulic cylinder 103, five pressure columns 105 fixed on the lower surface of the lower pressure plate 104, a sleeve 107 fixed at the middle position inside the molding box 101, a sleeve 107 fixed inside the fixed support plate 106 and corresponding to the pressure columns 105, and a bottom plate 108 provided at the bottom end of the sleeve 107; A collection box 109 is placed on the front surface of the bottom of the molding box 101. A protective door 102 is installed on the front surface of the molding box 101 via a hinge. Limiting plates are welded to both sides of the inside of the molding box 101. The lower surface of the bottom plate 108 is in contact with the surface support of the limiting plate.

[0016] A collection component is provided on the rear surface of the bottom of the molding box 101. A drive component is provided between the end of the bottom plate 108 and the rear surface of the molding box 101. A cleaning and scraping component is provided on the upper surface of the collection component. The bottom plate 108 is extended and retracted by the drive component, and the bottom plate 108 is cleaned by the cleaning and scraping component during the extension and retraction adjustment. The cleaned residue is convenient to collect.

[0017] In order to facilitate the installation and telescopic adjustment of the flexible scraper 1087 by means of the collection component, in this embodiment, preferably, the collection component includes a collection box 1082 disposed on the rear surface of the bottom end inside the molding box 101. The top side of the collection box 1082 is provided with a through groove 1083. The bottom plate 108 passes through the inside of the through groove 1083 and is movably connected. The bottom plate 108 can be conveniently telescopically adjusted by passing through the through groove 1083 on one side of the collection box 1082, and at the same time, the residual material is collected inside the collection box 1082.

[0018] In order to facilitate the telescopic adjustment of the base plate 108 by means of the drive assembly, in this embodiment, preferably, the drive assembly includes a telescopic hydraulic cylinder 1081 fixedly installed on the rear surface of the molding box 101. The telescopic end of the telescopic hydraulic cylinder 1081 extends into the interior of the collection box 1082 and is fixed to the end of the base plate 108 by bolts. The base plate 108 can be telescopically opened and closed when the telescopic hydraulic cylinder 1081 moves, and is not prone to instability when subjected to force during telescopic opening and closing.

[0019] To facilitate the re-fixing of the flexible scraper 1087 after its initial engagement, in this embodiment, preferably, a support plate 1084 is bolted to one side of the upper surface of the collection box 1082, and a slot plate 1085 is integrally formed on the lower surface of the support plate 1084. The flexible scraper 1087 is then engaged and installed by the slot plate 1086, and then fixed again with screws, which facilitates fixation.

[0020] In order to facilitate the cleaning of the surface of the base plate 108 by means of the cleaning and scraping assembly, in this embodiment, preferably, the cleaning and scraping assembly includes a card plate 1086 that is engaged inside the card slot plate 1085. The lower surface of the card plate 1086 is integrally formed with a flexible scraper 1087, which can be used to scrape and clean the surface of the base plate 108 when it is reset into the inside of the collection box 1082, which facilitates cleaning and makes it easy to re-contact the bottom end of the sleeve 107 for tight contact and pressing.

[0021] The pressure column 105 is equipped with an elastic connecting component inside, and a pressing component is provided at the bottom of the elastic connecting component. When the pressure column 105 moves down, the pressing component is driven into the sleeve 107 by the elastic connecting component, which facilitates the elastic connection to adaptively press tablets of different thicknesses.

[0022] In order to facilitate the elastic connection between the pressure plate 1052 and the buffer rod 1051 through the elastic connection component and to facilitate adaptive pressing and forming, in this embodiment, preferably, the elastic connection component includes a limiting groove 1053 opened inside the pressure column 105, the buffer rod 1051 is limited inside the limiting groove 1053, and a spring 1054 is fixed between the top end of the buffer rod 1051 and the top end inside the limiting groove 1053. The buffer rod 1051 and the pressure plate 1052 are elastically connected through the spring 1054, and the pressure plate 1052 can be conveniently and adaptively pressed and formed according to the pressing thickness during pressing.

[0023] To facilitate adaptive pressing operations using the pressing assembly, in this embodiment, preferably, the pressing assembly includes a pressing plate 1052 fixed to the bottom end of the buffer rod 1051. A flexible scraper ring 1055 is fixed to the edge of the upper surface of the pressing plate 1052 by screws. Both the surface of the pressing plate 1052 and the surface of the flexible scraper ring 1055 are in contact with the inner surface of the pressing column 105. The pressing plate 1052 and the flexible scraper ring 1055 can be pressed down into the sleeve 107 for pressing. Furthermore, the spring 1054 deforms to adaptively press pressing sheets of different thicknesses.

[0024] In this invention, both the telescopic hydraulic cylinder 1081 and the lifting hydraulic cylinder 103 are connected to an external hydraulic pump station and supplied with oil pressure to achieve start-stop operation. This technology is existing technology and will not be described in further detail.

[0025] The working principle and usage process of this invention: When using this tablet compression molding equipment that can adapt to the tablet thickness, the bottom plate 108 is first slid inside the groove 1083 by the movement of the telescopic hydraulic cylinder 1081 until the lower surface of the bottom plate 108 extends to the bottom end of the sleeve 107 and makes close contact. The bottom plate 108 is supported by the side limiting plate and tablet powder is injected into the sleeve 107 again. Then, as the lifting hydraulic cylinder 103 moves downward, it drives the lower pressure plate 104 and pressure column 105 downward until the pressure plate 1052 and flexible scraper ring 1055 move downward and enter the interior of the sleeve 107. The lower surface of the pressure plate 1052 contacts the surface of the powder, and as it continues to move downward, it exerts force on the buffer rod 1051 and spring 1054. The buffer rod 1051 is limited to move within the limiting groove 1053. Therefore, depending on the different thicknesses of the powder injected into the five sleeves 107, as the lower pressure plate 104 and pressure column 105 continue to press down... Spring 1054 continues to be compressed until all pressure plates 1052 reach the preset compression amount. At this time, the pressure of each pressure plate 1052 on the powder tends to be consistent, and the thickness of the pressed sheet can also be adaptively pressed by the compression amount of spring 1054 and the stroke of pressure plate 1052. This makes it convenient for the pressing equipment to operate with adaptive pressing of the thickness of the pressed sheet inside the sleeve 107. At the same time, when the pressure plate 1052 drives the flexible scraper ring 1055 to press inside the sleeve 107, it can also contact and scrape the inner surface of the sleeve 107 for cleaning. Finally, after compression molding, the telescopic hydraulic cylinder 1081 drives the bottom plate 108 to move and open inside the slot 1083 and enter the collection box 1082. The pressure plate 1052 continues to press down, causing the tablets compressed inside the sleeve 107 to detach and enter the tablet collection box 109 for collection. At this time, after the bottom plate 108 enters the collection box 1082, the upper surface of the bottom plate 108 first contacts the surface of the flexible scraper 1087, which facilitates the scraping and cleaning of the surface of the bottom plate 108 by the flexible scraper 1087 until the bottom plate 108 is completely inside the collection box. After the interior of 1082, one side of the flexible scraper 1087 detaches from the surface of the base plate 108 and scrapes off the residual material, which falls into the collection box 1082 for collection. This facilitates cleaning of the base plate 108 during the pressing operation. When pressing again, the base plate 108 can still be in close contact with the bottom end of the sleeve 107 for effective pressing. This improves the convenience of adjusting and cleaning the base plate 108 during tablet pressing. At the same time, the telescopic hydraulic cylinder 1081 is less prone to instability when the base plate 108 is opened and closed under force, thus improving the pressing effect.

[0026] Although embodiments of the invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tablet compression molding device with adaptive tablet thickness, comprising a molding box (101), the inner top end of the molding box (101) is fixed with a lifting hydraulic cylinder (103), the telescopic end of the lifting hydraulic cylinder (103) is fixed with a pressing plate (104), the lower surface of the pressing plate (104) is fixed with five pressing columns (105), the inner middle position of the molding box (101) is fixed with a sleeve (107), the inner of the fixed support plate (106) is fixed with the sleeve (107) and corresponds to the pressing column (105), the bottom end of the sleeve (107) is provided with a bottom plate (108), characterized in that: A collection component is provided on the rear surface of the bottom of the molding box (101), a driving component is provided between the end of the bottom plate (108) and the rear surface of the molding box (101), and a cleaning and scraping component is provided on the upper surface of the collection component. The pressure column (105) is provided with an elastic connecting component inside, and a pressing component is provided at the bottom end of the elastic connecting component.

2. The tablet compression molding apparatus with self-adaptable tablet thickness according to claim 1, characterized in that: A collection box (109) is placed on the front surface of the bottom of the molding box (101). A protective door (102) is installed on the front surface of the molding box (101) via a hinge. Limiting plates are welded to both sides of the interior of the molding box (101). The lower surface of the bottom plate (108) is in contact with the surface support of the limiting plate.

3. The tablet compression and forming equipment with adaptive tablet thickness according to claim 1, characterized in that: The collection assembly includes a collection box (1082) disposed on the rear surface of the bottom end inside the molding box (101). A through groove (1083) is provided on the top side of the collection box (1082), and the bottom plate (108) passes through the interior of the through groove (1083) and is movably connected.

4. The tablet compression molding equipment with adaptive tablet thickness according to claim 3, characterized in that: The drive assembly includes a telescopic hydraulic cylinder (1081) fixedly mounted on the rear surface of the molding box (101), the telescopic end of which extends into the interior of the collection box (1082) and is fixed to the end of the base plate (108) by bolts.

5. The tablet compression molding equipment with adaptive tablet thickness according to claim 3, characterized in that: A support plate (1084) is fixedly installed on one side of the upper surface of the collection box (1082) by bolts, and a slot plate (1085) is integrally formed on the lower surface of the support plate (1084).

6. The tablet compression molding equipment with adaptive tablet thickness according to claim 5, characterized in that: The cleaning and scraping assembly includes a card plate (1086) that engages inside a card slot plate (1085), and a flexible scraper (1087) is integrally formed on the lower surface of the card plate (1086).

7. The tablet compression molding equipment with adaptive tablet thickness according to claim 1, characterized in that: The elastic connection assembly includes a limiting groove (1053) opened inside the pressure column (105), a buffer rod (1051) is limited inside the limiting groove (1053), and a spring (1054) is fixed between the top end of the buffer rod (1051) and the top end inside the limiting groove (1053).

8. The tablet compression molding equipment with adaptive tablet thickness according to claim 6, characterized in that: The pressing assembly includes a pressing plate (1052) fixed to the bottom of the buffer rod (1051). A flexible scraper ring (1055) is fixed to the edge of the upper surface of the pressing plate (1052) by screws. The surfaces of the pressing plate (1052) and the flexible scraper ring (1055) are in contact with the inner surface of the pressing column (105).

Images