Tablet press punch device convenient for exhausting and sucking air

Abstract

The utility model relates to the technical field of tablet presses, in particular to a tablet press punch device convenient to exhaust and inhale, which comprises a tablet press punch device body, punch units are uniformly mounted on the periphery of the inner side of the tablet press punch device body, and protective components are mounted outside the punch units. According to the improved protection structure, corresponding protection work can be conducted on the punch unit through the protection assembly, the situation that medicine dust is attached to the surface of the punch unit, and consequently up-down movement is inconvenient can be effectively avoided, in the up-down movement process of the punch unit, the protection assembly can stretch out and draw back, and the safety of the punch unit is improved. And the exhaust grooves are formed, so that internal gas can be exhausted in the contraction process of the protection assembly, the situation that the contraction effect is poor or the corrugated sleeve droops due to the fact that internal exhaust is not smooth is prevented, the exhaust effect is better, and the protection effect is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of tablet press technology, specifically to a tablet press punch device that facilitates exhaust and intake. Background Technology

[0002] A tablet press is a device used in the pharmaceutical, chemical, and food industries to compress powdered or granular materials into tablets. It compresses powdered materials into tablets of a predetermined shape through pressure and is widely used in pharmaceutical production and nutritional supplement manufacturing. The tablet press punch is a crucial component of the tablet press. The punch, working in conjunction with the die, compresses the powdered material through its up-and-down movement. However, during the pressing process, some powder often adheres to the surface of the punch, which, if not cleaned regularly, can reduce pressing efficiency.

[0003] During the design process of this utility model, the following problems were discovered in the existing technology:

[0004] In the process of compressing drug powder, a small amount of lubricating oil is intermittently and automatically added to the punch to ensure smooth up-and-down movement. This lubricating oil falls naturally from the surface of the punch and lubricates the surface. However, when excess lubricating oil seeps through the dust seal to the bottom, it can easily form oil droplets or accumulate and adhere with airborne dust, forming oil-powder mixture patches. These oil or oil-powder mixture patches can easily fall into the powder cavity of the tableting mold as the punch moves up and down and rotates, eventually mixing into the tablets and producing defective tablets.

[0005] The lack of a proper protective structure may cause drug powder to adhere to the outer surface of the punch. If the adhesion time is long, the powder may be difficult to clean, thus affecting the up-and-down movement of the punch and consequently reducing the efficiency of drug production.

[0006] In existing technologies, to overcome the above problems, a protective sleeve structure is installed on the punch. This protective sleeve structure includes a body that covers the punch, with a ring extending from the upper end of the body. During installation, the dust ring inside the tablet press punch assembly body (i.e., the position of the upper ring after the protective sleeve structure is installed) needs to be removed first. Then, the ring is fitted over the original dust ring on the tablet press punch assembly body, and the protective sleeve structure extends from top to bottom to cover the punch. This protective sleeve structure is time-consuming, laborious, and inconvenient because the dust ring must be removed before installation. Furthermore, existing protective sleeves also suffer from insufficient sealing due to the upper ring only using an interference seal principle, which can cause the sleeve to easily detach from the ring cavity of the tablet press punch assembly body (i.e., the original dust ring position) during the stretching and extrusion process.

[0007] Subsequently, in order to overcome this problem, a protective sleeve structure without an upper ring has emerged in the existing technology. When using it, there is no need to remove the dustproof ring, avoiding cumbersome disassembly. It is directly put on the punch from bottom to top, covering the entire punch. However, while protecting the punch, the lack of an exhaust function means that the air inside the protective structure cannot be discharged. This results in the phenomenon of insufficient exhaust speed causing the protective sleeve to fall off when it is repeatedly and rapidly compressed and rebounded, and insufficient air intake speed causing the rebound speed to be too slow. Utility Model Content

[0008] The purpose of this invention is to provide a tablet press punch device that facilitates exhaust and intake, so as to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a tablet press punch device that facilitates exhaust and intake, comprising a tablet press punch device body, wherein punch units are evenly installed around the inner periphery of the tablet press punch device body, and protective components are installed on the outside of the punch units.

[0010] The punch unit includes an upper punch section installed inside the punch device body of the tablet press. A first connecting section is installed at the bottom of the upper punch section, a lower punch section is installed at the bottom of the first connecting section, a second connecting section is installed at the bottom of the lower punch section, and a pressing head is installed at the bottom of the second connecting section.

[0011] The protective assembly includes a corrugated sleeve installed on the outside of the lower die head, with a first connecting collar installed at the bottom of the corrugated sleeve and a second connecting collar installed at the top of the corrugated sleeve.

[0012] More preferably, the outer diameter of the second connecting section is smaller than the outer diameter of the lower punch section and the pressing head.

[0013] More preferably, the bottom of the pressing head is provided with a pressing groove.

[0014] More preferably, the top of the first connecting collar is provided with a raised rib.

[0015] More preferably, the first connecting collar is installed on the outside of the second connecting segment.

[0016] More preferably, exhaust and intake grooves are provided on both sides of the top of the second connecting collar.

[0017] More preferably, the top of the second connecting collar is mounted on the lower surface of the tablet press punch assembly body and contacts the dustproof ring of the tablet press punch assembly body.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This protective structure, through its protective components, enables the punch body to be protected. During the up-and-down movement of the punch body, the protective components can smoothly extend and retract, ensuring the continuity and effectiveness of the protection. 1. The first connecting collar at the bottom and the part in contact with the punch has an inwardly convex structure. Its main purpose is to better enclose the second connecting section on the bottom side of the punch, forming a strong seal. This better catches the lubricating oil that seeps from the dustproof ring of the body and flows down the outer surface of the punch, accumulating as well as the corresponding oil-powder mixture (which accumulates on the inner side of the bottom of the protective components due to gravity as it flows down the outer surface of the punch), preventing the seepage of lubricating oil or oil. 1. The powder mixture may seep out again or fly off and fall onto the turntable below, mixing into the qualified tablets; 2. Furthermore, an exhaust and suction groove is provided on the second connecting collar at the top of the protective component (corrugated sleeve): ① This allows the protective component to expel the internal gas in a timely manner during rapid contraction, resulting in better exhaust effect and preventing poor internal exhaust or air stagnation, which could lead to poor contraction effect or prevent the protective component from sagging and the first connecting collar from squeezing the second connecting section at the bottom of the punch, causing the entire protective component to fall off; ② This also allows the protective component to quickly draw external gas into the inside during rapid extension from a compressed state, thereby effectively and quickly rebounding and restoring itself, protecting and wrapping the punch rod.

[0020] This protective structure, through its protective components, enables the punch unit to be protected, effectively preventing drug dust from adhering to the surface of the punch unit and hindering its vertical movement, thus increasing production efficiency. Furthermore, the protective components can extend and retract during the vertical movement of the punch unit, ensuring the continuity and effectiveness of the protection. Additionally, an exhaust groove is provided, allowing internal gases to be expelled during the retraction process, preventing poor retraction or sagging of the corrugated sleeve due to obstructed venting.

[0021] This protective structure can be installed directly without removing the dust seal, making it convenient and effective. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the exploded front view of this utility model;

[0024] Figure 3 This is a schematic diagram of the punch unit structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the explosion structure of the protective component of this utility model.

[0026] In the figure: 1. Tableting machine punch device body; 2. Punch unit; 201. Upper punch section; 202. First connecting section; 203. Lower punch section; 204. Second connecting section; 205. Pressing head; 3. Protective components; 301. Corrugated sleeve; 302. First connecting collar; 303. Second connecting collar. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1 to 4 This utility model provides a technical solution: a tablet press punch device that facilitates exhaust and intake, including a tablet press punch device body 1, punch units 2 are evenly installed around the inner periphery of the tablet press punch device body 1, and a protective component 3 is installed on the outside of the punch units 2.

[0029] The punch unit 2 includes an upper punch section 201 installed inside the punch device body 1 of the tablet press. A first connecting section 202 is installed at the bottom of the upper punch section 201. A lower punch section 203 is installed at the bottom of the first connecting section 202. A second connecting section 204 is installed at the bottom of the lower punch section 203. A pressing head 205 is installed at the bottom of the second connecting section 204.

[0030] The protective component 3 includes a corrugated sleeve 301 installed outside the lower punch section 203. A first connecting collar 302 is installed at the bottom of the corrugated sleeve 301, and a second connecting collar 303 is installed at the top of the corrugated sleeve 301.

[0031] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the outer diameter of the second connecting section 204 is smaller than the outer diameters of the lower punch section 203 and the pressing head 205.

[0032] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, a pressing groove is provided at the bottom of the pressing head 205.

[0033] In this embodiment, as Figure 1 , Figure 2 and Figure 4 As shown, the top of the first connecting collar 302 is provided with a raised rib.

[0034] In this embodiment, as Figure 1-4As shown, the first connecting collar 302 is installed on the outside of the second connecting section 204. The top of the first connecting collar 302 is provided with a protruding rib, which fits into the groove of the second connecting section 204 and is locked in place.

[0035] In this embodiment, as Figure 1 , Figure 2 and Figure 4 As shown, exhaust grooves are provided on both sides of the top of the second connecting collar 303.

[0036] In this embodiment, as Figure 1-4 As shown, the top of the second connecting collar 303 is mounted on the lower surface of the tablet press punch device body 1 and contacts the dustproof ring of the body 1.

[0037] like Figure 1-4 As shown, the working process of this tablet press punch device, which facilitates exhaust and intake, is as follows:

[0038] First, the protective component 3 is passed through the punch unit 2, so that the second connecting collar 303 is located on the upper outer side of the lower punch section 203. The top of the second connecting collar 303 is installed on the lower surface of the tablet press punch device body 1 and contacts the dustproof ring of the body 1. Specifically, a dustproof ring is provided on the inner side of the tablet press punch device body 1, and the top of the second connecting collar 303 contacts the annular surface of the dustproof ring. Then, the first connecting collar 302 is installed on the outside of the second connecting section 204. At this time, the bottom of the lower punch section 203 will be located in the groove of the second connecting section 204, so that the lower punch section 203 and the pressing head 205 can limit the first connecting collar 302, so that the protruding part of 302 is fully inserted into the groove of 204 and has an interference fit design. After being sealed and fully clamped, it prevents the situation of falling off.

[0039] When the tablet press punch device body 1 is started, it will drive the punch unit 2 to move vertically downward. At this time, the corrugated sleeve 301 will fit against the outside of the lower punch section 203 and be in an extended state. Thus, it can perform tablet pressing through the pressing groove opened by the pressing head 205. During the extension process, the corrugated sleeve 301 will extend rapidly. During the extension process of the corrugated sleeve 301, the external gas will be drawn in through the exhaust and intake groove to avoid poor external gas intake, which would cause the corrugated sleeve 301 to have poor rebound effect and cause suction deformation.

[0040] After pressing is completed, the punch unit 2 moves vertically upward. Since the top of the second connecting collar 303 contacts the dustproof ring surface, the corrugated sleeve 301 can contract. During the contraction of the corrugated sleeve 301, the internal gas will be discharged through the exhaust and intake grooves to avoid poor internal exhaust leading to poor contraction effect or bulging and pressure on the corrugated sleeve 301, which would cause the first connecting collar 302 and the second connecting section 204 to separate and fall off as a whole.

[0041] In actual use, the protective component 3 can also be of different specifications to be suitable for punch units 2 of different specifications, with the same structure, function and usage method.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tablet press punch assembly facilitating venting and suction, comprising a tablet press punch assembly body (1), characterized in that: Multiple punch units (2) are evenly installed around the inner side of the main body (1) of the tablet press punch device, and a protective component (3) is installed on the outside of the punch unit (2). The punch unit (2) includes an upper punch section (201) installed inside the punch device body (1) of the tablet press. A first connecting section (202) is installed at the bottom of the upper punch section (201), a lower punch section (203) is installed at the bottom of the first connecting section (202), a second connecting section (204) is installed at the bottom of the lower punch section (203), and a pressing head (205) is installed at the bottom of the second connecting section (204). The protective component (3) includes a corrugated sleeve (301) installed outside the lower punch section (203). A first connecting collar (302) is installed at the bottom of the corrugated sleeve (301), and a second connecting collar (303) is installed at the top of the corrugated sleeve (301). Exhaust and intake grooves are provided on both sides of the top of the second connecting collar (303).

2. A punch assembly for a tablet press to facilitate exhaust air intake as defined in claim 1, characterized in that: The outer diameter of the second connecting section (204) is smaller than the outer diameter of the punch section (203) and the pressing head (205).

3. A punch assembly for a tablet press to facilitate exhaust air intake as defined in claim 1, wherein: The bottom of the pressing head (205) is provided with a pressing groove.

4. A punch assembly for a tablet press to facilitate venting and air intake as defined in claim 1, wherein: The top of the first connecting collar (302) is provided with a raised rib.

5. A punch assembly for a tablet press to facilitate exhaust air intake as defined in claim 1, wherein: The first connecting collar (302) is installed on the outside of the second connecting section (204).

6. A punch assembly for a tablet press to facilitate venting and air intake as defined in claim 1, wherein: The top of the second connecting collar (303) is mounted on the lower surface of the tablet press punch body (1).

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