Double drum pill screening machine

Abstract

The present invention discloses a double-drum shot screening machine, including a fixed bracket, a horizontally placed inner screen drum and an outer screen drum, a feeding funnel, an infrared weighing sensor, and a driving motor. A material distribution channel is provided at the bottom of the feeding funnel, and a material discharge channel and a waste channel connected to the inner screen drum are provided below the material distribution channel. The output of the driving motor is connected to a reducer, and the output of the reducer is connected to a main shaft, a driving roller is sleeved on the main shaft, and a driven roller is provided below the driving roller. The driving roller and the driven roller are connected by a chain, and a vibrator is provided on both the outer screen drum and the inner screen drum, and the main shaft is connected to the bottom of the inner screen drum, and a driven shaft is connected to the center of the driven roller, and the other end of the driven shaft is connected to the bottom of the outer screen drum, and a first discharge port and a second discharge port are provided on the outer screen drum, and a third discharge port is provided on the inner screen drum. The structure is compact.

Description

Technical Field

[0001] The invention relates to the technical field of a pill screening machine, in particular to a double-drum pill screening machine. Background Art

[0002] At present, when making Chinese medicine pills, since there are certain manufacturing standards for medicines, the diameter of Chinese medicine pills needs to be screened by a pill screening machine, and pills with diameters smaller than the standard diameter are eliminated. At present, general pill screening machines screen the diameters of pills through the rolling of the drum, and exclude pills with smaller diameters and pills with larger diameters.

[0003] However, the current pill screening machines have the following problems: 1. Currently, pills are generally classified directly by diameter, but some pills are fluffy and do not meet the weight standards, resulting in poor pill quality; 2. The existing pill internal sieve cylinder adopts an upper and lower structure, which results in a large overall volume and occupies a large space, so it needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned deficiencies in the prior art and to provide a double-drum pill screening machine which is compact and capable of real-time monitoring of pill weights to ensure that the pills meet the requirements.

[0005] In order to achieve the above-mentioned purpose, a double-drum shot screening machine designed by the present invention comprises a fixed bracket, in which a horizontally placed inner screen drum and an outer screen drum sleeved outside the inner screen drum are arranged, the mesh aperture of the outer screen drum is smaller than the mesh aperture of the inner screen drum, a feeding funnel is arranged on the left side of the fixed bracket, an infrared weighing sensor is arranged in the feeding funnel, a material distribution channel is arranged at the bottom of the feeding funnel, a material discharge channel and a waste channel connected to the inner screen drum are arranged below the material distribution channel, switches are arranged in the material discharge channel and the waste channel, a driving motor is arranged on the left side of the fixed bracket, the output of the driving motor is connected to a reducer, the output of the reducer is connected to a main shaft, an active supporting wheel is sleeved on the main shaft, and an active supporting wheel is arranged on the main shaft. A driven supporting wheel is arranged below the supporting wheel and is located on one side below the driving supporting wheel. The driving supporting wheel and the driven supporting wheel are connected by a chain. A first vibrator is arranged on the outer screen drum, and a second vibrator is arranged on the inner screen drum. The main shaft is also connected to the bottom of the inner screen drum through a first coupling. A driven shaft is connected to the center of the driven supporting wheel, and the other end of the driven shaft is connected to the bottom of the outer screen drum through a second coupling. A first discharge port and a second discharge port are arranged on the outer screen drum, and a third discharge port is arranged on the inner screen drum. The driving motor can drive the inner screen drum and the outer screen drum to swing horizontally by ±180°. A controller electrically connected to the infrared weighing sensor is arranged on the side of the fixed bracket, and a sliding wheel is arranged at the bottom of the fixed bracket.

[0006] Furthermore, in order to achieve rapid discharging, a first cylinder is arranged below the outer screen drum, the output end of the first cylinder is connected to the outer screen drum, and the output end of the first cylinder is hinged to the outer screen drum through a first hinge, and the output end of the drive motor is hinged to the reducer through a second hinge.

[0007] Furthermore, in order to adapt to the screening of pills of different sizes, the caliber of the first discharge port is less than 1.8 mm, the second discharge port is located on the side of the outer screen drum near the tail, and the caliber of the second discharge port is 1.8-2.0 mm, and the third discharge port is located at the tail of the inner screen drum and the caliber of the third discharge port is greater than 2.0 mm.

[0008] Furthermore, in order to facilitate later disassembly, the first coupling is fixed to the inner screen drum by a first locking screw, and the second coupling is fixed to the outer screen drum by a second locking screw.

[0009] Furthermore, in order to avoid material leakage, a vacuum cleaner is arranged on the side of the outer screen drum, the opening of the vacuum cleaner faces the outer screen drum and the inner screen drum, and arc baffles are arranged on the right sides of the inner screen drum and the outer screen drum.

[0010] Furthermore, in order to improve stability, the top of the fixed bracket is an open structure, and a first positioner abutting against the right side of the outer screen drum and a second positioner abutting against the right side of the inner screen drum are arranged on the right side of the fixed bracket.

[0011] In order to further avoid friction caused by hard contact, the ends of the first positioner and the second positioner that abuts against the right side of the inner screen roller are provided with silicone pressure covers that abut against the corresponding screen rollers.

[0012] Furthermore, in order to facilitate positioning, a medical silicone strip is provided on the upper wall of the fixed bracket to abut against the upper part of the outer screen drum.

[0013] Preferably, the size of the outer screen drum is 600x1200 mm, the size of the inner screen drum is 300x1600, the screen barrel wall thickness of the outer screen drum and the inner screen drum is 0.38 mm, the mesh aperture of the outer screen drum is 1.8 mm, the mesh aperture of the inner screen drum is 2.0 mm, and the punching holes of the inner screen drum and the outer screen drum are both round holes.

[0014] Preferably, the punching holes of the inner screen drum and the outer screen drum may also be square or oblong.

[0015] The double-drum pill screening machine obtained by the present invention has the following technical effects: 1. First, when feeding, the weight of the pills is detected by using an infrared weight sensor, and the pills that meet the requirements are sent to the unloading channel, and the pills that do not meet the requirements are sent to the waste channel to improve the ability of the later drugs to meet the requirements and ensure the final quality of the drugs; 2. By arranging the inner and outer cylinders arranged up and down in a manner of an inner cylinder sleeved with an outer cylinder, the overall structural layout is simpler and the volume is smaller. In addition, during the driving process, a driving motor drives the reducer to work, and the reducer drives a main shaft to rotate. The active supporting wheel on the main shaft drives the driven supporting wheel through a chain, and the driven supporting wheel drives the driven shaft and finally drives the outer screen drum, so that the cost of the entire equipment is lower and the working efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the internal structure of a double-drum pill screening machine of Example 1;

[0017] Figure 2 It is a schematic diagram of the internal structure of a double-drum shot sieve machine in Example 1 when no outer screen drum is installed;

[0018] Figure 3 yes Figure 1 The left schematic diagram of

[0019] Figure 4 is a schematic diagram of the internal structure of the feed funnel in Example 1;

[0020] Figure 5 It is a schematic diagram of the internal structure of a double-drum pill screening machine in Example 2;

[0021] Figure 6 It is a schematic diagram of the internal structure of a double-drum pill screening machine in Example 3;

[0022] Figure 7 It is a schematic diagram of the internal structure of a double-drum pill screening machine in Example 4.

[0023] In the figure: fixed bracket 1, inner screen drum 2, outer screen drum 3, feed funnel 4, infrared weighing sensor 5, material distribution channel 6, waste channel 7, switch 8, drive motor 9, reducer 10, main shaft 11, active supporting roller 12, driven supporting roller 13, chain 14, first vibrator 15, second vibrator 16, first coupling 17, driven shaft 18, second coupling 19, third discharge port 20, controller 21, first cylinder 22, first hinge 23, sliding wheel 24, second hinge 25, first discharge port 26, second discharge port 27, first locking screw 28, second locking screw 29, first positioner 30, second positioner 31, silicone gland 32, medical silicone strip 33, arc baffle 34, discharge channel 35, vacuum cleaner 36. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0025] Embodiment 1:

[0026] like Figure 1-Figure 4 As shown, a double-drum shot screening machine provided by the present invention comprises a fixed bracket 1, in which a horizontally placed inner screen drum 2 and an outer screen drum 3 sleeved on the outer side of the inner screen drum 2 are arranged, the mesh aperture of the outer screen drum 3 is smaller than the mesh aperture of the inner screen drum 2, a feeding funnel 4 is arranged on the left side of the fixed bracket 1, an infrared weighing sensor 5 is arranged in the feeding funnel 4, a material distribution channel 6 is arranged at the bottom of the feeding funnel 4, a material discharge channel 35 and a waste channel 7 connected to the inner screen drum 2 are arranged below the material distribution channel 6, a switch 8 is arranged in the material discharge channel 35 and the waste channel 7, a driving motor 9 is arranged on the left side of the fixed bracket 1, the output of the driving motor 9 is connected to a reducer 10, the output of the reducer 10 is connected to a main shaft 11, an active supporting wheel 12 is sleeved on the main shaft 11, and a positioning wheel 12 is arranged below the active supporting wheel 12 A driven roller 13 is disposed on one side below the active roller 12, and the active roller 12 and the driven roller 13 are connected by a chain 14. A first vibrator 15 is disposed on the outer screen drum 3, and a second vibrator 16 is disposed on the inner screen drum 2. The main shaft 11 is also connected to the bottom of the inner screen drum 2 through a first coupling 17. A driven shaft 18 is connected to the center of the driven roller 13, and the other end of the driven shaft 18 is connected to the bottom of the outer screen drum 3 through a second coupling 19. A first discharge port 26 and a second discharge port 27 are disposed on the outer screen drum 3, and a third discharge port 20 is disposed on the inner screen drum 2. The driving motor 9 can drive the inner screen drum 2 and the outer screen drum 3 to swing horizontally by ±180°. A controller 21 electrically connected to the infrared weighing sensor 5 is disposed on the side of the fixed bracket 1, and a sliding wheel 24 is disposed at the bottom of the fixed bracket 1.

[0027] This structure has the following technical advantages: 1. First, when feeding, the weight of the pills is detected by using an infrared weighing sensor 5, and the pills that meet the requirements are sent to the unloading channel 35, and the pills that do not meet the requirements are sent to the waste channel 7 to improve the quality of the later drugs and ensure the final quality of the drugs; 2. By arranging the inner and outer cylinders arranged up and down in an inner cylinder sleeve outer cylinder manner, the overall structural layout is simpler and the volume is smaller. In addition, during the driving process, a driving motor 9 drives the reducer 10 to work, and the reducer 10 drives a main shaft to rotate. The active supporting wheel 12 on the main shaft drives the driven supporting wheel 13 through the chain 14, and the driven supporting wheel 13 drives the driven shaft 18 and finally drives the outer screen drum 3, so that the cost of the entire equipment is lower and the working efficiency is higher.

[0028] Furthermore, in order to adapt to the screening of pills of different sizes, the caliber of the first discharge port 26 is less than 1.8 mm, the second discharge port 27 is located on the side of the outer screen drum 3 near the tail, and the caliber of the second discharge port 27 is 1.8-2.0 mm, and the third discharge port 20 is located at the tail of the inner screen drum 2 and the caliber of the third discharge port 20 is greater than 2.0 mm.

[0029] Furthermore, in order to facilitate later disassembly, the first coupling 17 is fixed to the inner screen drum 2 by a first locking screw 28, and the second coupling 19 is fixed to the outer screen drum 3 by a second locking screw 29. The screw setting facilitates later disassembly and cleaning of the internal screen drum.

[0030] Furthermore, in order to facilitate positioning, a medical silicone strip 33 is provided on the upper wall of the fixed bracket 1 to abut against the upper part of the outer screen drum 3. By providing the medical silicone strip 33, the upper part of the outer screen drum 3 can be positioned to improve stability.

[0031] Embodiment 2:

[0032] like Figure 5 As shown, a double-drum shot sieve machine provided by the present invention, further, in order to realize rapid discharging, a first cylinder 22 is arranged below the outer screen drum 3, the output end of the first cylinder 22 is connected to the outer screen drum 3, and the output end of the first cylinder 22 is hinged to the outer screen drum 3 through a first hinge 23, the output end of the driving motor 9 is hinged to the reducer 10 through a second hinge 25, and the inclination angle of the outer screen drum 3 is changed by setting the first cylinder 22 to facilitate rapid discharging in the later stage.

[0033] Embodiment 3:

[0034] like Figure 6As shown, the present invention provides a double-drum pill screening machine. Further, in order to avoid material leakage, a vacuum cleaner 36 is arranged on the side of the outer screen drum 3, and the opening of the vacuum cleaner faces the outer screen drum 3 and the inner screen drum 2. Arc baffles 34 are arranged on the right sides of the inner screen drum 2 and the outer screen drum 3. The arc baffles 34 are arranged to prevent drugs from falling from the right side of the screen drum, and the vacuum cleaner 36 is arranged to improve the dust collection effect.

[0035] Embodiment 4:

[0036] like Figure 7 As shown, the present invention provides a double-drum shot screening machine. Further, in order to improve stability, the top of the fixed bracket 1 is an open structure, and a first positioner 30 abutting against the right side of the outer screen drum 3 and a second positioner 31 abutting against the right side of the inner screen drum 2 are arranged on the right side of the fixed bracket 1. By setting the positioner, the right side of the screen drum is fixed to improve the stability of the whole during rolling.

[0037] In order to further avoid friction caused by hard contact, the ends of the first locator 30 and the second locator 31 abutting against the right side of the inner screen drum 2 are provided with silicone pressure covers 32 abutting against the corresponding screen drums. By providing the silicone pressure covers 32, hard contact between the screen drum and the locator is avoided to generate friction, noise, and damage to components.

[0038] Preferably, the size of the outer screen drum 3 is 600x1200 mm, the size of the inner screen drum 2 is 300x1600 mm, the screen barrel wall thickness of the outer screen drum 3 and the inner screen drum 2 is 0.38 mm, the mesh aperture of the outer screen drum 3 is 1.8 mm, the mesh aperture of the inner screen drum 2 is 2.0 mm, and the punching holes of the inner screen drum 2 and the outer screen drum 3 are both round holes.

[0039] Preferably, the punching holes of the inner screen drum 2 and the outer screen drum 3 may also be square or oblong.

[0040] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. A double-drum shot sieving machine, comprising a fixed support (1), characterized in that: A horizontally placed inner screen drum (2) and an outer screen drum (3) sleeved on the inner screen drum (2) are arranged in a fixed support (1), wherein the inner screen drum (2) and the outer screen drum (3) form an inner drum sleeved on an outer drum, wherein the mesh aperture of the outer screen drum (3) is smaller than the mesh aperture of the inner screen drum (2), a feed hopper (4) is arranged on the left side of the fixed support (1), an infrared weighing sensor (5) is arranged in the feed hopper (4), a material distribution channel (6) is arranged at the bottom of the feed hopper (4), a material discharge channel (35) and a waste channel (7) connected to the inner screen drum (2) are arranged below the material distribution channel (6), and a material discharge channel (35) and a waste channel (7) are arranged below the material discharge channel (6). A switch (8) is provided in each of the material channel (35) and the waste channel (7), a driving motor (9) is provided on the left side of the fixed bracket (1), an output end of the driving motor (9) is connected to a reducer (10), an output end of the reducer (10) is connected to a main shaft (11), a driving roller (12) is sleeved on the main shaft (11), a driven roller (13) is provided below the driving roller (12) and is located on one side below the driving roller (12), the driving roller (12) and the driven roller (13) are connected by a chain (14), a first vibrator (15) is provided on the outer screen drum (3), and a second vibrator (15) is provided on the inner screen drum (2). The vibrator (16) is connected to the bottom of the inner screen drum (2) through a first coupling (17). The driven roller (13) is centrally connected to a driven shaft (18). The other end of the driven shaft (18) is connected to the bottom of the outer screen drum (3) through a second coupling (19). The outer screen drum (3) is provided with a first discharge port (26) and a second discharge port (27). The inner screen drum (2) is provided with a third discharge port (20). The drive motor (9) is capable of driving the inner screen drum (2) and the outer screen drum (3) to swing horizontally at ±180°. A device for measuring the weight of the inner screen drum (2) and the outer screen drum (3) is provided on the side of the fixed bracket (1). A controller (21) electrically connected to the sensor (5), a sliding wheel (24) is arranged at the bottom of the fixed bracket (1), the top of the fixed bracket (1) is an open structure, a first positioner (30) abutting against the right side of the outer screen drum (3) and a second positioner (31) abutting against the right side of the inner screen drum (2) are arranged on the right side of the fixed bracket (1), the ends of the first positioner (30) and the second positioner (31) abutting against the right side of the inner screen drum (2) are provided with a silicone pressure cap (32) abutting against the corresponding screen drum, and a medical silicone strip (33) abutting against the top of the outer screen drum (3) is arranged on the upper wall inside the fixed bracket (1).

2. A double-drum shot screening machine according to claim 1, characterized in that: A first cylinder (22) is arranged below the outer screen drum (3), the output end of the first cylinder (22) is connected to the outer screen drum (3), and the output end of the first cylinder (22) is hinged to the outer screen drum (3) via a first hinge (23), and the output end of the drive motor (9) is hinged to the reducer (10) via a second hinge (25).

3. A double-drum shot screening machine according to claim 1, characterized in that: The caliber of the first discharge port (26) is less than 1.8 mm, the second discharge port (27) is located on the side of the outer screen drum (3) near the tail, and the caliber of the second discharge port (27) is 1.8-2.0 mm, and the third discharge port (20) is located at the tail of the inner screen drum (2) and the caliber of the third discharge port (20) is greater than 2.0 mm.

4. A double-drum shot screening machine according to claim 1, characterized in that: The first coupling (17) and the inner screen drum (2) are fixed via a first locking screw (28), and the second coupling (19) and the outer screen drum (3) are fixed via a second locking screw (29).

5. The double-drum shot screening machine according to claim 1, characterized in that: A vacuum cleaner is arranged on the side of the outer screen drum (3), the opening of the vacuum cleaner faces the outer screen drum (3) and the inner screen drum (2), and arc-shaped baffles (34) are arranged on the right sides of the inner screen drum (2) and the outer screen drum (3).

6. A double-drum shot screening machine according to claim 1, characterized in that: The size of the outer screen drum (3) is 600 x 1200 mm, the size of the inner screen drum (2) is 300 x 1600 mm, the wall thickness of the screen barrels of the outer screen drum (3) and the inner screen drum (2) is 0.38 mm, the mesh aperture of the outer screen drum (3) is 1.8 mm, the mesh aperture of the inner screen drum (2) is 2.0 mm, and the punched holes of the inner screen drum (2) and the outer screen drum (3) are both round holes.

7. A double-drum shot screening machine according to claim 6, characterized in that: The punched holes of the inner screen drum (2) and the outer screen drum (3) may also be square or oblong.

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