Feeder bottom plate with novel structure

Abstract

The utility model discloses a feeder bottom plate with a novel structure, the feeder bottom plate is divided into a front section and a rear section, and the distance between the plane of the rear section of the feeder bottom plate and a punching table is larger than that between the plane of the front section of the feeder bottom plate and the punching table. Wherein the feeder bottom plate front section and the feeder bottom plate rear section are divided according to the particle running direction, and particles run from the feeder bottom plate front section to the feeder bottom plate rear section. Compared with the prior art, powder leakage of equipment or entry of foreign matters into tablets due to abrasion of the bottom plate of the feeder is avoided, black spots of the tablets due to friction can be effectively prevented, product quality and product yield are improved, friction between the bottom plate of the feeder and a punching table can be effectively avoided, and equipment safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical production, in particular to a feeding device bottom plate with a novel structure. Background Art

[0002] At present, in the existing technology, the bottom plates of feeding devices all adopt an integral structure ( Figure 1 ). During the tablet pressing process, if the gap between the bottom plate 1 of the feeding device and the high-speed rotating punching table 4 is too large, it will cause excessive powder leakage from the equipment, affecting the finished product yield. If the gap is too small, it will affect the safety of the equipment due to excessive friction. In addition, according to the running direction of the granules in the tablet press, as Figure 1 shown by the arrow, in the existing technology, the rear section of the bottom plate of the feeding device is the place where the force is the greatest and the wear is the most serious. Severe friction in the rear section will cause the gap to become larger, resulting in foreign objects entering the tablets, causing quality problems, powder leakage problems due to the enlarged gap, and equipment safety problems, etc.

[0003] At present, in the existing technology, the materials of the bottom plates of feeding devices are mostly polytetrafluoroethylene (PTFE), tin bronze, 316L stainless steel, etc., to prevent the reaction between the bottom plate of the feeding device and the material and ensure the safety of the equipment. The bottom plates of feeding devices made of polytetrafluoroethylene (PTFE), tin bronze, and 316L stainless steel all have many disadvantages in daily use. For example, when using tin bronze as the bottom plate of the feeding device, the friction between the granules containing calcium carbonate components and the bottom plate can cause carbonization, and the black granules mixed into the tablets will affect the product quality; although the bottom plate of the feeding device made of polytetrafluoroethylene (PTFE) does not react with the granules, it wears quickly and is prone to powder leakage from the equipment, resulting in a reduced yield; when the bottom plate of the feeding device is made of 316L stainless steel, although it does not affect the product quality and yield, its hard texture is likely to affect the safety of the equipment. The influence of bottom plates of feeding devices made of different materials on products and safety is shown in the following table:

[0004]

[0005] Therefore, there is an urgent need for a bottom plate of a feeding device with a novel structure that can both improve the product quality and yield and ensure the safety of the equipment. Summary of the Utility Model

[0006] Aiming at the deficiencies of the existing technology, the technical problem to be solved by the utility model is to provide a bottom plate of a feeding device with a novel structure that can both prevent powder leakage from the equipment or foreign objects from entering the tablets, and avoid the generation of black spots on the tablets due to friction, while improving the product quality and yield and ensuring the safety of the equipment.

[0007] In order to achieve the above object, the technical solution adopted by the utility model is as follows:

[0008] A feeder bottom plate with a new structure includes a front section and a rear section of the feeder bottom plate. The front section and the rear section of the feeder bottom plate are divided according to the particle running direction, and the particles run from the front section of the feeder bottom plate to the rear section of the feeder bottom plate. The front section and the rear section of the feeder bottom plate are made of different materials.

[0009] Further, the front section of the feeder bottom plate is made of plastic material.

[0010] Further, the front section of the feeder bottom plate is made of polyethylene (PE) material.

[0011] Further, the rear section of the feeder bottom plate is made of stainless steel material.

[0012] Further, the rear section of the feeder bottom plate is made of 316L stainless steel material.

[0013] Further, both the front section and the rear section of the feeder bottom plate are fixed by screws; preferably, the screws are round head screws, semi-counter sunk head screws, countersunk head screws, spherical round head screws, pan head screws, oval head screws or hexagon head screws.

[0014] Further, the material of the screws is the same as that of the rear section of the feeder bottom plate.

[0015] Further, the feeder bottom plate further includes a cross beam.

[0016] Further, the distance between the plane of the rear section of the feeder bottom plate and the punching table is larger than the distance between the plane of the front section of the feeder bottom plate and the punching table.

[0017] Further, the distance between the plane of the rear section of the feeder bottom plate and the punching table is 0.1 - 1 mm larger than the distance between the plane of the front section of the feeder bottom plate and the punching table; preferably 0.3 - 0.5 mm; more preferably 0.3 mm.

[0018] Compared with the prior art, the feeder bottom plate with the new structure designed by the present utility model adopts a segmented design, and the distance between the plane of the rear section of the feeder bottom plate and the punching table is larger than the distance between the plane of the front section of the feeder bottom plate and the punching table, which can not only ensure the product quality, improve the product yield, but also ensure the equipment safety. Specifically, the feeder bottom plate adopts a segmented design and the distance between the plane of the rear section and the punching table is larger than the distance between the plane of the front section of the feeder bottom plate and the punching table, which can prevent powder leakage in the front section of the equipment. During use, the friction between the rear section of the bottom plate and the punching table is serious. The design of "the distance between the plane of the rear section of the feeder bottom plate and the punching table is larger than the distance between the plane of the front section of the feeder bottom plate and the punching table" can avoid quality problems caused by foreign matters entering the tablets due to the increase of the gap caused by serious friction in the rear section, powder leakage problems caused by the increase of the gap, and equipment safety problems. In some specific embodiments, the front and rear sections of the bottom plate are made of materials that do not react with the particles, further avoiding affecting the product quality. Brief Description of the Drawings

[0019] Figure 1 Schematic diagram of the structure of the feeder bottom plate provided by the background technology of the present utility model;

[0020] Figure 2 Schematic diagram of the structure of the feeder bottom plate of the present utility model;

[0021] Figure 3 Schematic diagram of the partial structure of the feeder bottom plate and the punching table provided by the background technology of the present utility model;

[0022] Figure 4 Schematic diagram of the partial structure of the feeder bottom plate and the punching table of the present utility model;

[0023] In the figure, 1 - feeder bottom plate; 2 - cross beam; 3 - screw; 4 - punching table; 11 - front section of the feeder bottom plate; 12 - rear section of the feeder bottom plate, Figure 1 、 Figure 2 The arrow indicates the running direction of the particles. Detailed Description of the Preferred Embodiments

[0024] The present utility model will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model.

[0025] Embodiment

[0026] A feeder bottom plate with a new structure, as Figure 2 shown, includes a front section 11 of the feeder bottom plate and a rear section 12 of the feeder bottom plate. The front section 11 of the feeder bottom plate and the rear section 12 of the feeder bottom plate are made of different materials and are both fixed by screws 3. The material of the screws 3 is the same as that of the rear section 12 of the feeder bottom plate. The distance between the plane of the rear section 12 of the feeder bottom plate and the punching table 4 is 0.3 mm larger than the distance between the plane of the front section 11 of the feeder bottom plate and the punching table 4.

[0027] In this embodiment, the running direction of the particles is as Figure 2 shown by the arrow. The front section 11 of the feeder bottom plate is less affected by the particles and is relatively not easily worn. It is made of polyethylene (PE) material, which is relatively soft. Even if the feeder bottom plate rubs against the punching table 4, it will not affect the safety of the equipment. The rear section 12 of the feeder bottom plate is more affected by the particle impact and is more easily worn. It is made of 316L stainless steel material, which does not react with the particles and has strong wear resistance and is not easily worn. It can prevent the equipment from leaking powder or foreign objects from entering the tablets, and prevent black spots from being generated on the tablets due to friction.

[0028] In this embodiment, the distance between the stainless steel plate plane of the rear section 12 of the feeder bottom plate and the punching table 4 is 0.3 mm larger than the distance between the polyethylene (PE) plane of the front section 11 of the feeder bottom plate and the punching table 4 ( Figure 4) During the actual operation process, it can prevent the stainless-steel bottom plate from contacting the punching table 4 to cause friction and affect the safety of the equipment.

[0029] The above-disclosed is only the preferred embodiment of the present invention, and it is not a limitation to the present invention in other forms. Those of ordinary skill in the art can understand that the present invention is not limited to each specific embodiment. For those of ordinary skill in the art, without departing from the technical principle of the present invention, improvements or variations may still be made within the scope of the present invention, and the various technical features mentioned in the specification can be combined with each other. These improvements or variations should all be covered within the protection scope of the present invention.

Claims

1. A feeder bottom plate, characterized in that: The feeder bottom plate comprises a feeder bottom plate front section (11) and a feeder bottom plate rear section (12), wherein the feeder bottom plate front section (11) and the feeder bottom plate rear section (12) are divided according to the particle running direction, the particles run from the feeder bottom plate front section (11) to the feeder bottom plate rear section (12), and the feeder bottom plate front section (11) and the feeder bottom plate rear section (12) are made of different materials.

2. The feeder bottom plate according to claim 1, characterized in that: The front section (11) of the feeder bottom plate is made of plastic material.

3. The feeder bottom plate according to claim 2, characterized in that: The front section (11) of the feeder bottom plate is made of polyethylene (PE).

4. The feeder bottom plate according to claim 1, characterized in that: The rear section (12) of the feeder bottom plate is made of stainless steel.

5. The feeder bottom plate according to claim 4, characterized in that: The rear section (12) of the feeder bottom plate is made of 316L stainless steel.

6. The feeder bottom plate according to claim 1, characterized in that: The front section (11) of the feeder bottom plate and the rear section (12) of the feeder bottom plate are both fixed by screws (3).

7. The feeder bottom plate according to claim 6, characterized in that: The screw (3) is a cylindrical head screw, a countersunk head screw, a countersunk head screw, a spherical cylindrical head screw, a pan head screw, a semi-circular head screw or a hexagon head screw.

8. The feeder bottom plate according to claim 6, characterized in that: The material of the screw (3) is the same as that of the rear section (12) of the feeder bottom plate.

9. The feeder bottom plate according to claim 1, characterized in that: The feeder base further comprises a crossbeam (2).

10. The feeder bottom plate according to any one of claims 1 to 9, characterized in that: The distance between the plane of the rear section (12) of the feeder bottom plate and the punching platform (4) is greater than the distance between the plane of the front section (11) of the feeder bottom plate and the punching platform (4).

11. The feeder bottom plate according to claim 10, characterized in that: The distance between the plane of the rear section (12) of the feeder bottom plate and the punching platform (4) is 0.1-1 mm greater than the distance between the plane of the front section (11) of the feeder bottom plate and the punching platform (4).

12. The feeder bottom plate according to claim 10, characterized in that: The distance between the plane of the rear section (12) of the feeder bottom plate and the punching platform (4) is 0.3-0.5 mm greater than the distance between the plane of the front section (11) of the feeder bottom plate and the punching platform (4).

13. The feeder bottom plate according to claim 10, characterized in that: The distance between the plane of the rear section (12) of the feeder bottom plate and the punching platform (4) is 0.3 mm greater than the distance between the plane of the front section (11) of the feeder bottom plate and the punching platform (4).

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