Automatic feeding device for particle screening

Abstract

The utility model relates to the field of medicine, in particular to an automatic feeding device for particle screening, and aims to solve the technical problems that during screening in the prior art, grindable particles and non-grindable particles cannot be distinguished, so that medicine particles are screened out and separated, and waste is caused. Comprising a feeding hopper 1, a material pipe 2, an upper millstone 3, a lower millstone 4, a discharging pipe 5, a residue box 6, a residue door 7, a gear ring 8, a gear roller 9, an input shaft 10, concave textures 11, a spring 12, a bearing support 13, a pressing shaft 14 and a spiral blade 15, during screening, medicine powder penetrates through filtering holes of the lower millstone, the medicine powder is changed into powder under the friction effect of the upper millstone and the lower millstone and penetrates through the filtering holes, and particles which cannot be ground enable the upper millstone to slide upwards along the material pipe; the quality of tablets is improved, the service life of the grinding disc is prolonged, the stroke of medicine particles in the grains is prolonged through the wave-shaped concave grains, grinding is more thorough, and the medicine particles cannot be separated from impurities together.

Description

Technical Field

[0001] The utility model relates to the field of medicines, in particular to an automatic particle screening feeding device. Background Art

[0002] With the development of science and technology, the fields of medicine and pesticides are also making rapid progress. Dry tableting has been widely used because of its advantages of high efficiency, no influence of humidity and heat, and the finished product is not easy to absorb moisture. Its working process requires the compound powder with a moisture content of no more than 15% to enter the feeding auger from the hopper for feeding. The particles contained in the drug powder will affect the tableting quality.

[0003] In the prior art, it is impossible to distinguish grindable particles from non-grindable particles during screening, so all the drug particles are screened out and separated, resulting in waste. The utility model solves the above problem. Utility Model Content

[0004] The utility model provides an automatic particle screening feeding device to solve the technical problem that grindable particles and non-grindable particles cannot be distinguished during screening in the prior art, so all drug particles are screened out and separated, resulting in waste.

[0005] A particle screening automatic feeding device comprises: a feed hopper, a feed pipe connected to the lower end of the feed hopper, an upper grinding disc is sleeved on the outside of the feed pipe, a lower grinding disc is provided at the lower part of the upper grinding disc, and filter holes are provided on the lower grinding disc. When the upper grinding disc contacts the lower grinding disc, the end of the feed pipe is located at the upper part of the upper grinding disc, the lower edge of the inner ring of the upper grinding disc is chamfered, a spiral conveying mechanism is provided in the feed pipe, a discharge pipe is connected to the lower part of the lower grinding disc, the upper grinding disc is connected to a rotating power, the feed hopper is connected to the upper part of a waste box, the waste box is connected to the outside of the discharge pipe, and a waste door is provided on the outer wall of the waste box.

[0006] Furthermore, a gear ring is connected to the edge of the upper grinding disc, the gear ring is meshingly connected to the lower part of the gear roller, the gear roller is connected to the input shaft, and the input shaft is rotatably connected to the top wall of the feed hopper.

[0007] Furthermore, the lower surface of the upper grinding disc is provided with a concave texture, which is wavy and extends from the lower edge of the inner ring of the upper grinding disc to the lower edge of the outer ring.

[0008] Furthermore, a spring is provided between the upper surface of the upper grinding disc and the inner top wall of the waste box, and the spring is in a compressed state.

[0009] Furthermore, the inner bottom wall of the debris box is inclined, and a debris door is provided on the lowest side wall of the inclined inner bottom wall of the debris box.

[0010] Furthermore, the inner surface of the hopper is connected to a bearing bracket, a pressure shaft is rotatably connected inside the bearing bracket, a spiral blade is connected to the lower end of the pressure shaft, and the spiral blade is located in the material pipe.

[0011] Beneficial effects of the utility model:

[0012] 1. During screening, the drug powder passes through the filter holes of the lower grinding disc. Under the friction between the upper and lower grinding discs, the drug powder turns into powder and passes through the filter holes. The ungrindable particles make the upper grinding disc slide up along the material tube and then are centrifugally thrown out to complete the separation, improve the quality of tablets, and extend the life of the grinding disc.

[0013] 2. The wavy concave texture prolongs the travel of drug particles within the texture, making the grinding more thorough and not separating with impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure section of the utility model Figure 1 ;

[0016] Figure 3 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0017] Figure 4 This is a schematic diagram of the structure section of the utility model Figure 2 .

[0018] In the figure: feed hopper 1; material pipe 2; upper grinding disc 3; lower grinding disc 4; discharge pipe 5; waste box 6; waste door 7; gear ring 8; gear roller 9; input shaft 10; concave texture 11; spring 12; bearing bracket 13; pressure shaft 14; spiral blade 15. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The rotational connection described in this device refers to the process of baking the bearing on the shaft, providing a spring retaining ring groove on the shaft or the shaft hole, and clamping the elastic retaining ring in the retaining ring groove to achieve axial fixation of the bearing and realize rotation; the articulation refers to a connection method that is active on connecting parts such as hinges, pins and short shafts.

[0021] The present invention will be described in detail below with reference to the accompanying drawings.

[0022] Embodiment 1:

[0023] The following is combined with Figure 1-4 The present embodiment describes an automatic particle screening feeding device, comprising: a feed hopper 1, a feed pipe 2 is connected to the lower end of the feed hopper 1, an upper grinding disc 3 is sleeved on the outside of the feed pipe 2, a lower grinding disc 4 is provided at the lower part of the upper grinding disc 3, and a filter hole is provided on the lower grinding disc 4. When the upper grinding disc 3 contacts the lower grinding disc 4, the end of the feed pipe 2 is located at the upper part of the upper grinding disc 3, and the lower edge of the inner ring of the upper grinding disc 3 is chamfered. A spiral conveying mechanism is provided in the feed pipe 2, and a discharge pipe 5 is connected to the lower part of the lower grinding disc 4. The upper grinding disc 3 is connected to the rotating power, the feed hopper 1 is connected to the upper part of the waste box 6, the waste box 6 is connected to the outside of the discharge pipe 5, and a waste door 7 is provided on the outer wall of the waste box 6;

[0024] The medicine powder is injected into the feed hopper 1, and the medicine powder enters the material pipe 2 along the feed hopper 1, and the spiral conveying mechanism is turned on. The spiral conveying mechanism presses the medicine powder downward, and the medicine powder enters between the upper grinding disc 3 and the lower grinding disc 4 along the chamfer of the lower edge of the inner ring of the upper grinding disc 3, and the upper grinding disc 3 slides up along the material pipe 2, and the power of the upper grinding disc 3 is turned on. The upper grinding disc 3 crushes the agglomerated medicine powder, and the medicine powder passes through the filter holes of the lower grinding disc 4 and enters the discharge pipe 5 for discharge. The solid particles that cannot be crushed move to the edge of the upper grinding disc 3 under the centrifugal action of the rotation of the upper grinding disc 3, and are thrown out and enter the waste box 6. The waste door 7 is opened to complete the collection.

[0025] The edge of the upper grinding disc 3 is connected with a gear ring 8, which is meshed and connected with the lower part of the gear roller 9, the gear roller 9 is connected with the input shaft 10, and the input shaft 10 is rotatably connected with the top wall of the feed hopper 1;

[0026] When the upper grinding disc 3 slides, the gear ring 8 slides along the gear roller 9, and the power is input from the input shaft 10. The input shaft 10 drives the gear roller 9 to rotate, the gear roller 9 drives the gear ring 8 to rotate, and the gear ring 8 drives the upper grinding disc 3 to rotate.

[0027] The lower surface of the upper grinding disc 3 is provided with a concave texture 11, which is wavy and extends from the lower edge of the inner ring of the upper grinding disc 3 to the lower edge of the outer ring;

[0028] The wavy concave texture prolongs the travel distance of drug particles within the texture, allowing for more thorough grinding without separation with impurities.

[0029] A spring 12 is provided between the upper surface of the upper grinding disc 3 and the inner top wall of the waste box 6, and the spring 12 is in a compressed state;

[0030] The pressure between the upper grinding disc 3 and the lower grinding disc 4 is increased, and the agglomerated powder is not crushed by its own weight alone.

[0031] The inner bottom wall of the waste box 6 is inclined, and the lowest side wall of the inner bottom wall of the waste box 6 is provided with a waste door 7;

[0032] After the debris particles enter the debris box 6, they roll along the inclined inner bottom wall and gather at the debris door 7 for easy removal.

[0033] The inner surface of the hopper 1 is connected with a bearing bracket 13, a pressing shaft 14 is rotatably connected in the bearing bracket 13, a spiral blade 15 is connected to the lower end of the pressing shaft 14, and the spiral blade 15 is located in the material pipe 2;

[0034] The power drives the spiral blade 15 to rotate through the pressing shaft 14 to press the powder downward.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A particle screening automatic feeding device, comprising: A feed hopper (1), the lower end of which is connected to a feed pipe (2). The invention is characterized in that an upper grinding disc (3) is sleeved on the outside of the material pipe (2), a lower grinding disc (4) is arranged at the bottom of the upper grinding disc (3), a filter hole is arranged on the lower grinding disc (4), when the upper grinding disc (3) contacts the lower grinding disc (4), the end of the material pipe (2) is located at the top of the upper grinding disc (3), the lower edge of the inner ring of the upper grinding disc (3) is chamfered, a spiral conveying mechanism is arranged inside the material pipe (2), a discharge pipe (5) is connected to the bottom of the lower grinding disc (4), the upper grinding disc (3) is connected to the rotating power, the feed hopper (1) is connected to the top of the waste box (6), the waste box (6) is connected to the outside of the discharge pipe (5), and a waste door (7) is arranged on the outer wall of the waste box (6).

2. The automatic particle screening feeding device according to claim 1, characterized in that: The edge of the upper grinding disc (3) is connected with a gear ring (8), the gear ring (8) is meshedly connected with the lower part of the gear roller (9), the gear roller (9) is connected with the input shaft (10), and the input shaft (10) is rotatably connected with the top wall of the feed hopper (1).

3. The automatic particle screening feeding device according to claim 1, characterized in that: The lower surface of the upper grinding disc (3) is provided with a concave texture (11), the concave texture (11) is wavy, and the concave texture (11) extends from the lower edge of the inner ring of the upper grinding disc (3) to the lower edge of the outer ring.

4. The automatic particle screening feeding device according to claim 1, characterized in that: A spring (12) is provided between the upper surface of the upper grinding disc (3) and the inner top wall of the waste box (6), and the spring (12) is in a compressed state.

5. The automatic particle screening feeding device according to claim 1, characterized in that: The inner bottom wall of the debris box (6) is arranged obliquely, and the lowest side wall of the inner bottom wall of the debris box (6) is provided with a debris door (7).

6. The automatic particle screening feeding device according to claim 1, characterized in that: The inner surface of the hopper (1) is connected to a bearing bracket (13), a pressing shaft (14) is rotatably connected inside the bearing bracket (13), a spiral blade (15) is connected to the lower end of the pressing shaft (14), and the spiral blade (15) is located in the material pipe (2).

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