Tablet coating equipment

Abstract

The utility model provides tablet coating equipment which comprises a roller rotationally arranged in a pair of rotating rings, supporting legs are arranged at the bottoms of the rotating rings, a plurality of blocking pieces are arranged in the roller in a circumferential array mode, the other end of the roller is coaxially connected with an output shaft of a driving motor, and a mounting groove is formed in one side of the roller; a discharging plate is hinged to one side of the mounting groove through a hinge shaft; the spraying mechanism is arranged in the roller; the vertical section of the T-shaped sliding block is arranged in a sliding sleeve in a sliding mode, the sliding sleeve is connected with the outer side of the roller, a spring is connected between the sliding sleeve and the transverse section of the T-shaped sliding block, and when the discharging plate is closed and the spring is in a natural state, the side, away from the hinged shaft, of the bottom of the discharging plate abuts against the vertical section of the T-shaped sliding block. The pushing mechanism in the device can control the unloading plate to be opened without rotating along with the rotary drum, unloading is completed, the connecting structure of the air cylinder is simplified, and the failure rate of the device can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of tablet production, and particularly relates to a tablet coating device. Background Art

[0002] Some tablets need to adhere a layer of coating on the surface after being pressed into shape. Existing coating devices usually include a drum, a spraying mechanism, etc. During use, the tablets are placed in the drum and rolled, and at the same time, the spraying mechanism is controlled to spray the coating material on the tablets to form a coating. After the coating is completed, the tablets are taken out for packaging. During the process of taking the tablets out of the drum, some coating devices need to rely on manual unloading by workers, with a low degree of automation. Some coating devices directly open a discharge groove on the drum and set a baffle in the discharge groove. The baffle is opened and closed by a cylinder. However, this type of coating device usually directly fixes the cylinder on the outer drum and directly connects the telescopic end of the cylinder to the baffle. During the rotation of the drum, the cylinder will also rotate simultaneously. A rotary sealing structure needs to be set at the connection end of the air inlet pipe of the cylinder. The overall connection structure is relatively complex, prone to failures, and the cylinder rotates with the drum for a long time, easily causing problems of wire entanglement. Therefore, it is necessary to make improvements. Summary of the Utility Model

[0003] To solve the above-mentioned defects of the prior art, the present application provides a tablet coating device. In this device, the pushing mechanism can control the opening of the discharge plate without following the rotation of the rotating cylinder to complete the unloading, simplifies the connection structure of the cylinder, and can reduce the failure rate of the device.

[0004] To achieve the above purpose, the present utility model adopts the following technologies:

[0005] A tablet coating device, comprising:

[0006] A drum, rotatably arranged within a pair of rotating rings. Support legs are provided at the bottom of each rotating ring. One end of the drum is provided with an opening, and a retaining ring is provided at the opening. A plurality of baffle plates are arranged in a circumferential array within the drum. One end of each baffle plate is connected to the retaining ring, and the other end of each baffle plate is connected to the other end of the drum. The other end of the drum is coaxially connected to the output shaft of a driving motor. An installation groove is formed on one side of the drum, and an arc-shaped discharge plate is hinged to one side of the installation groove through a hinge shaft;

[0007] A spraying mechanism, arranged within the drum, for spraying coating material onto the tablets within the drum;

[0008] A T-shaped slider, the vertical section of which is slidably arranged within a sliding sleeve. The sliding sleeve is connected to the outer side of the drum. A spring is connected between the sliding sleeve and the horizontal section of the T-shaped slider. When the discharge plate is closed and the spring is in a natural state, the side of the bottom of the discharge plate away from the hinge shaft abuts against the vertical section of the T-shaped slider. When the spring is stretched by a preset distance, the T-shaped slider is outside the rotation range of the discharge plate;

[0009] The pushing mechanism is fixed to the support leg and is used to push the T-shaped slider when the discharge plate rotates to the bottommost position, so that the spring is stretched by a preset distance.

[0010] Furthermore, the pushing mechanism includes a cylinder and a pushing block. The cylinder is fixed to the support leg, and the telescopic direction of its telescopic end is parallel to the length direction of the support table. The pushing block is connected to the telescopic end of the cylinder. A rectangular groove is formed on the vertical section of the T-shaped slider. When the spring is in the natural state, one end of the rectangular groove close to the horizontal section of the T-shaped slider is outside the sliding sleeve. The pushing block is arranged towards the rectangular groove, and the top of the pushing block has a first inclined surface. When the telescopic end of the cylinder is pushed out, the first inclined surface abuts against one end of the rectangular groove close to the horizontal section of the T-shaped slider, and the T-shaped slider is pushed to slide a preset distance.

[0011] Furthermore, one end of the vertical section of the T-shaped slider facing the discharge plate has a second inclined surface that inclines towards the bottom of the sliding sleeve.

[0012] Furthermore, a fixing block is connected to the discharge plate. When the discharge plate is closed and the spring is in the natural state, the bottom surface of the fixing block is parallel to the T-shaped slider and abuts against the vertical section of the T-shaped slider.

[0013] Furthermore, a pressing ring is provided at the top of the drum. The pressing ring is rotatably connected to a connecting rod, and both ends of the connecting rod are respectively connected to two rotating rings. When the discharge plate is in the closed state and rotates to the topmost position, the pressing ring abuts against the discharge plate.

[0014] Furthermore, a limiting piece is provided on the other side of the installation groove to prevent the discharge plate from rotating upwards into the rotating drum.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. The pushing mechanism in this equipment can control the opening of the discharge plate without following the rotation of the rotating drum to complete the discharging, simplifies the connection structure of the cylinder, and can reduce the failure rate of the equipment.

[0017] 2. When the discharge plate rotates upwards and contacts the pressing ring, the pressing ring will push the discharge plate to squeeze the second inclined surface on the vertical section of the T-shaped slider until the discharge plate completely enters the installation groove to complete the automatic closing of the discharge plate. Description of the Drawings

[0018] Figure 1 It is a three-dimensional view of the overall structure of the equipment in the embodiment of the present application.

[0019] Figure 2 It is a three-dimensional view of the overall structure of the equipment in another perspective in the embodiment of the present application.

[0020] Figure 3 is Figure 2 The enlarged view of part A in

[0021] Figure 4 It is a three-dimensional view of the overall structure of the device according to an embodiment of the present application from another perspective.

[0022] Figure 5 It is a three-dimensional view of a partial structure of the device according to an embodiment of the present application.

[0023] Figure 6 It is an exploded view of a partial structure of the device according to an embodiment of the present application.

[0024] Figure 7 It is an exploded view of another partial structure of the device according to an embodiment of the present application.

[0025] Reference numerals: drum - 1, rotating ring - 2, driving motor - 3, spraying mechanism - 4, T-shaped slider - 5, cylinder - 6, pressing ring - 7, retaining ring - 101, retaining piece - 102, mounting groove - 103, discharging plate - 104, limiting piece - 105, support leg - 201, sliding sleeve - 501, spring - 502, rectangular groove - 503, second inclined surface - 504, pushing block - 601, connecting rod - 701, fixing block - 1041. Detailed implementation manners

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will describe the implementation manners of the present utility model in detail with reference to the accompanying drawings. However, the embodiments described herein are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0027] The embodiment of the present application provides a tablet coating device, as Figures 1 - 7 shown, including a drum 1, a spraying mechanism 4, a T-shaped slider 5, a pushing mechanism, etc.

[0028] Specifically, the drum 1 is rotatably arranged within a pair of rotating rings 2. Support legs 201 are provided at the bottom of each of the rotating rings 2. One end of the drum 1 is provided with an opening, at which an end ring 101 is provided. Inside the drum 1, a plurality of baffle plates 102 are arranged in a circumferential array. One end of each baffle plate 102 is connected to the end ring 101, and the other end of each baffle plate 102 is connected to the other end of the drum 1. The other end of the drum 1 is coaxially connected to the output shaft of a driving motor 3. An installation groove 103 is formed on one side of the drum 1. An arc-shaped discharge plate 104 is hinged to one side of the installation groove 103 through a hinge shaft; a spraying mechanism 4 is arranged inside the drum 1 for spraying coating material onto the tablets inside the drum 1; the vertical section of a T-shaped slider 5 is slidably arranged within a sliding sleeve 501, and the sliding sleeve 501 is connected to the outer side of the drum 1. A spring 502 is connected between the sliding sleeve 501 and the horizontal section of the T-shaped slider 5. When the discharge plate 104 is closed and the spring 502 is in a natural state, the side of the bottom of the discharge plate 104 away from the hinge shaft abuts against the vertical section of the T-shaped slider 5. When the spring 502 is stretched by a preset distance, the T-shaped slider 5 is outside the rotation range of the discharge plate 104; a pushing mechanism is fixed to the support leg 201 for pushing the T-shaped slider 5 when the discharge plate 104 rotates to the bottommost position, so that the spring 502 is stretched by a preset distance.

[0029] During actual use, first keep the discharge plate 104 in a closed state. After putting the tablets into the drum 1, control the driving motor 3 to drive the drum 1 to rotate clockwise. At the same time, control the spraying mechanism 4 to spray the coating raw material to complete the coating of the tablets. Then control the drum 1 to rotate until the discharge plate 104 reaches the bottommost position, and then control the pushing mechanism to push the T-shaped slider 5 so that the spring 502 is stretched by a preset distance. At this time, the T-shaped slider 5 is outside the rotation range of the discharge plate 104, and the discharge plate 104 will rotate downward due to its own gravity, and the tablets inside the drum 1 will fall out from the installation groove 103 to complete the discharging.

[0030] Specifically, referring to Figure 2 、 Figure 3 、 Figure 6 The pushing mechanism includes a cylinder 6 and a push block 601. The cylinder 6 is fixed to the support leg 201, and the telescopic direction of its telescopic end is parallel to the length direction of the support platform. The push block 601 is connected to the telescopic end of the cylinder 6. A rectangular groove 503 is formed on the vertical section of the T-shaped slider 5. When the spring 502 is in a natural state, the end of the rectangular groove 503 close to the horizontal section of the T-shaped slider 5 is outside the sliding sleeve 501. The push block 601 is arranged facing the rectangular groove 503. The top of the push block 601 has a first inclined surface. When the telescopic end of the cylinder 6 is pushed out, the first inclined surface abuts against the end of the rectangular groove 503 close to the horizontal section of the T-shaped slider 5, pushing the T-shaped slider 5 to slide a preset distance, and the T-shaped slider 5 can be made outside the rotation range of the discharge plate 104. Specifically, a limiting piece 105 is provided on the other side of the installation groove 103 to prevent the discharge plate 104 from rotating upward into the rotating cylinder.

[0031] Preferably, refer to Figure 3 and Figure 6 . One end of the vertical section of the T-shaped slider 5 facing the discharge plate 104 has a second inclined surface 504 that is inclined towards the bottom of the sliding sleeve 501. When it is necessary to close the discharge plate 104, the discharge plate 104 is pushed towards the roller 1. When the discharge plate 104 contacts the second inclined surface 504, a force parallel to the stretching direction of the spring 502 can be applied to the T-shaped slider 5 through the second inclined surface 504, causing the T-shaped slider 5 to slide backward. Until the discharge plate 104 completely enters the rectangular groove 503, the T-shaped slider 5 will reset under the pulling of the spring 502, blocking the discharge plate 104 from rotating downward. Specifically, refer to Figure 3 . A fixed block 1041 is connected to the discharge plate 104. When the discharge plate 104 is closed and the spring 502 is in a natural state, the bottom surface of the fixed block 1041 is parallel to the T-shaped slider 5 and abuts against the vertical section of the T-shaped slider 5. By setting the fixed block 1041, the contact area between the roller 1 and the T-shaped slider 5 can be increased, and the stability after the discharge plate 104 is closed can be improved.

[0032] Preferably, refer to Figure 1 . A pressing ring 7 is provided at the top of the roller 1. The pressing ring 7 is rotatably connected to a connecting rod 701. Both ends of the connecting rod 701 are respectively connected to two rotating rings 2. When the discharge plate 104 is in a closed state and rotates to the topmost position, the pressing ring 7 abuts against the discharge plate 104. When the discharging of the tablets is completed and it is necessary to close the discharge plate 104, the driving motor 3 can be controlled to continue driving the rotating cylinder to rotate. During the rotation, the discharge plate 104 will rotate due to its own gravity and gradually approach the roller 1. When the discharge plate 104 contacts the pressing ring 7, the pressing ring 7 will push the discharge plate 104 to squeeze the second inclined surface 504 on the vertical section of the T-shaped slider 5 until the discharge plate 104 completely enters the installation groove 103, completing the automatic closing of the discharge plate 104.

[0033] The above are only some embodiments listed in this application and do not limit this application.

Claims

1. A tablet coating device, characterized in that: include: A roller (1) is rotatably arranged in a pair of rotating rings (2), the bottom of each rotating ring (2) is provided with a support leg (201), one end of the roller (1) is provided with an opening, a baffle ring (101) is provided at the opening, a plurality of baffles (102) are arranged in a circular array in the roller (1), one end of the baffle (102) is connected to the baffle ring (101), the other end of the baffle (102) is connected to the other end of the roller (1), the other end of the roller (1) is coaxially connected to an output shaft of a driving motor (3), a mounting groove (103) is provided on one side of the roller (1), and an arc-shaped discharge plate (104) is hinged to one side of the mounting groove (103) via a hinge shaft; A spraying mechanism (4) is disposed in the drum (1) and is used to spray coating material onto the tablets in the drum (1); A T-shaped slider (5), the vertical section of which is slidably arranged in a sliding sleeve (501), the sliding sleeve (501) being connected to the outer side of the roller (1), a spring (502) being connected between the sliding sleeve (501) and the transverse section of the T-shaped slider (5), when the unloading plate (104) is closed and the spring (502) is in a natural state, a side of the bottom of the unloading plate (104) away from the hinge axis abuts against the vertical section of the T-shaped slider (5), and when the spring (502) is stretched by a preset distance, the T-shaped slider (5) is outside the rotation range of the unloading plate (104); The pushing mechanism is fixed to the supporting leg (201) and is used to push the T-shaped sliding block (5) when the unloading plate (104) rotates to the bottom, so that the spring (502) stretches a preset distance.

2. A tablet coating device according to claim 1, characterized in that: The pushing mechanism comprises a cylinder (6) and a pushing block (601). The cylinder (6) is fixed to the supporting leg (201). The telescopic direction of the telescopic end of the cylinder (6) is parallel to the length direction of the supporting platform. The pushing block (601) is connected to the telescopic end of the cylinder (6). A rectangular groove (503) is provided on the vertical section of the T-shaped slider (5). When the spring (502) is in a natural state, one end of the rectangular groove (503) close to the transverse section of the T-shaped slider (5) is outside the sliding sleeve (501). The pushing block (601) is arranged toward the rectangular groove (503). The top of the pushing block (601) has a first inclined surface. When the telescopic end of the cylinder (6) is pushed out, the first inclined surface abuts against one end of the rectangular groove (503) close to the transverse section of the T-shaped slider (5), thereby pushing the T-shaped slider (5) to slide a preset distance.

3. A tablet coating device according to claim 2, characterized in that: One end of the vertical section of the T-shaped sliding block (5) facing the discharge plate (104) has a second inclined surface (504) inclined toward the bottom of the sliding sleeve (501).

4. The tablet coating device according to claim 2, characterized in that: A fixed block (1041) is connected to the discharge plate (104). When the discharge plate (104) is closed and the spring (502) is in a natural state, the bottom surface of the fixed block (1041) is parallel to the T-shaped slider (5) and abuts against the vertical section of the T-shaped slider (5).

5. The tablet coating device according to claim 1, characterized in that: A lower pressure ring (7) is provided at the top of the roller (1). The lower pressure ring (7) is rotatably connected to a connecting rod (701). Both ends of the connecting rod (701) are respectively connected to two rotating rings (2). When the discharge plate (104) is in a closed state and rotates to the top, the lower pressure ring (7) abuts against the discharge plate (104).

6. The tablet coating device according to claim 1, characterized in that: A limiting plate (105) is provided on the other side of the mounting groove (103) to prevent the discharge plate (104) from rotating upward into the rotating drum.

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