Reverse discharging mechanism of coating machine

Abstract

The utility model discloses a reverse discharging mechanism of a coating machine, which comprises a frame, a roller rotatably arranged in the frame and provided with conical cylinder sections at two ends, and a stirring blade arranged on the inner wall of the straight cylinder section of the roller, and further comprises a cylinder section, a discharging blade and a discharging door bucket, the reverse discharging paddles and the stirring paddles are alternately arranged at intervals, and the inclination angles of the reverse discharging paddles and the stirring paddles on the axis of the roller are opposite; the discharging blade is arranged on the inner wall of a conical cylinder section, with an opening, of the roller and is connected with the reverse-rotation discharging paddle, and when the roller rotates reversely, the discharging blade is used for guiding materials guided out from the reverse-rotation discharging paddle to the outer end opening edge of the cylindrical section in a relay mode; the discharging door bucket can move to approach and cover the outer port edge of the cylindrical section; and a funnel part communicated with the inner wall of the cylindrical section is arranged on the lower side of the discharging door bucket and is used for guiding out materials.

Description

Technical Field

[0001] This application relates to the field of coating machine technology, specifically a coating machine reversing discharge mechanism. Background Technology

[0002] A coating machine is a device used to coat pharmaceutical tablets, seeds, and other materials. Existing coating machines have two discharge methods after coating: one involves manually shoveling the material out of the drum using a shovel or similar tool after the drum stops; the other involves inserting a trough-shaped tool into the feed inlet, where the material falls into the trough as it rolls and is fed from the mixing blades. This method, however, suffers from drawbacks due to the need to avoid the mixing blades, resulting in incomplete discharge requiring machine shutdown and cleaning, and also causing significant impact on the material, potentially leading to damage. Therefore, further improvements are necessary. Summary of the Invention

[0003] The purpose of this application is to provide a reversing discharge mechanism for a coating machine to solve the problems in the prior art.

[0004] To achieve the above objectives, this application provides the following technical solution: a reversing discharge mechanism for a coating machine, comprising a frame 1, a drum 2 rotatably disposed within the frame 1 and having conical sections at both ends, and a stirring blade 3 disposed on the inner wall of the straight section of the drum 2, wherein one end of the conical section has an opening, and further comprising:

[0005] Cylindrical section 5 is connected to the opening of the roller 2;

[0006] The reverse discharge blade 12 is alternately arranged with the stirring blade 3, and the inclination angle of the reverse discharge blade 12 and the stirring blade 3 on the axis of the drum 2 is opposite.

[0007] The discharge blade 4 is disposed on the inner wall of a conical section of the drum 2 with the opening and connected to the reversing discharge blade 12. When the drum 2 reverses, the discharge blade 4 is used to guide the material flowing out from the reversing discharge blade 12 to the outer edge of the cylindrical section 5.

[0008] The discharge hopper 6 is movable to approach and cover the outer edge of the cylindrical section 5; the lower side of the discharge hopper 6 is provided with a funnel part 602 that communicates with the inner wall of the cylindrical section 5 for discharging the material.

[0009] Furthermore, the discharge hopper 6 includes a sleeve portion 601, and the funnel portion 602 is connected to the lower side wall of the sleeve portion 601 and communicates with the inside of the sleeve portion 601. The outer axial end of the sleeve portion 601 is also provided with an openable and closable cover 603, and the cover 603 is provided with a viewing window for observing the interior.

[0010] Furthermore, one side of the cover 603 is movably hinged to the sleeve portion 601, and the other side is provided with a locking handle 604 that can be locked to the sleeve portion 601.

[0011] Furthermore, the outlet 7 of the funnel 602 is provided with a valve plate 9 that is controlled to open and close by a switch handle 8.

[0012] Furthermore, a guide strip 13 is provided between the reverse discharge blade 12 and the discharge blade 4. The guide strip 13 and the reverse discharge blade 12 are inclined in the same direction on the axis of the drum 2, and the height of the guide strip 13 is less than that of the reverse discharge blade 12 and the discharge blade 4 in the radial direction of the drum 2.

[0013] Furthermore, the coating machine's reverse discharge mechanism also includes a swing arm 10. One end of the swing arm 10 is movably hinged to the sleeve portion 601, and the other end is rotatably connected to a support 11 fixedly mounted on the frame 1. The hinge axis of the swing arm 10 and the sleeve portion 601 is parallel to the rotation axis of the support 11.

[0014] The beneficial technical effects of this application are as follows: The reversible discharge mechanism for the coating machine provided by this application allows for normal coating operation when the equipment rotates forward, and discharges material in reverse. During discharge, no other movable discharge accessories extending into the rollers are required, making it convenient, fast, and safe. The reversible discharge paddles and guide strips increase the flowability of the material during coating. The reversible discharge speed is fast, and the material flows smoothly during discharge, resulting in a gentler discharge and effectively avoiding or reducing material damage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this application;

[0016] Figure 2 This is a partial sectional view of the present application (with the frame removed).

[0017] In the diagram: 1. Frame; 2. Drum; 3. Agitator blade; 4. Discharge blade; 5. Cylindrical section; 6. Discharge hopper; 601. Sleeve section; 602. Funnel section; 603. Cover; 604. Locking handle; 605. Acrylic glass plate; 7. Discharge port; 8. Switch handle; 9. Valve plate; 10. Rocker arm; 11. Support; 12. Reverse discharge blade; 13. Guide bar. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] Please see Figure 1 and Figure 2 A reversing discharge mechanism for a coating machine includes a frame 1, a drum 2 rotatably disposed within the frame 1 and having conical sections at both ends, and a stirring blade 3 disposed on the inner wall of the straight section of the drum 2, wherein one end of the conical section has an opening, and further includes a cylindrical section 5, discharge blades 4, and a discharge hopper 6, wherein:

[0020] The cylindrical section 5 is connected to the opening of the drum 2; the reverse discharge blade 12 and the stirring blade 3 are alternately arranged and the inclination angles of the reverse discharge blade 12 and the stirring blade 3 on the axis of the drum 2 are opposite; the discharge blade 4 is provided on the inner wall of a conical section of the drum 2 with an opening and is connected to the reverse discharge blade 12. When the drum 2 reverses, the discharge blade 4 is used to guide the material flowing out from the reverse discharge blade 12 to the outer port edge of the cylindrical section 5. That is, when the material slides out along the reverse discharge blade 12, the flow inertia of the material causes it to reach the outer port edge of the cylindrical section 5; the discharge hopper 6 can move close to and cover the outer port edge of the cylindrical section 5; the lower side of the discharge hopper 6 is provided with a funnel part 602 that communicates with the inner wall of the cylindrical section 5 for discharging the material.

[0021] According to the structure provided in this embodiment, the coating machine reversing discharge mechanism provided in this application performs coating work normally when the equipment rotates forward, and discharges material in reverse. That is, when the drum 2 reverses, the material slides out along the discharge path formed by the reversing discharge paddle 12 and the discharge blade 4, and is discharged through the drain head 602, realizing the discharge action. No other movable discharge accessories extending into the drum 2 need to be installed during discharge, making it convenient, fast, and safe. The reversing discharge paddle 12 and the guide strip 13 can increase the flowability of the material during coating. The reversing discharge speed is fast, and the material flows smoothly during discharge, resulting in a gentler discharge and effectively avoiding or reducing material damage.

[0022] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2The discharge hopper 6 includes a sleeve part 601 and a funnel part 602 connected to the lower side wall of the sleeve part 601 and communicating with the inside of the sleeve part 601. The outer end of the sleeve part 601 is also provided with an openable and closable cover 603. The cover 603 is provided with a viewing window that allows observation of the interior. The viewing window is an acrylic glass plate 605 mounted on the cover 603. It is understood that the acrylic glass plate 605 can also be made of tempered glass. In this way, the material discharge status can be visually observed during the discharge process, which is convenient for operation.

[0023] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2 One side of the cover 603 is movably hinged to the sleeve part 601, and the other side is provided with a locking handle 604 that can be locked with the sleeve part 601. In this way, the cover 603 can be quickly opened and closed when needed, further facilitating operation.

[0024] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2 The discharge port 7 of the funnel section 602 is equipped with a valve plate 9 that is controlled to open and close by a switch handle 8. Thus, by controlling the opening and closing of the valve plate 9 through the switch handle 8, it is convenient to connect with the receiving container during discharge, control the discharge of materials, and further improve the practicality and controllability of the reverse discharge mechanism of this coating machine.

[0025] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2 A guide strip 13 is also provided between the reversing discharge blade 12 and the discharge blade 4. The guide strip 13 and the reversing discharge blade 12 are inclined in the same direction on the axis of the drum 2. In the radial direction of the drum 2, the height of the guide strip 13 is less than that of the reversing discharge blade 12 and the discharge blade 4. Thus, during reversing discharge, both the guide strip 13 and the reversing discharge blade 12 guide the material towards the discharge blade 4, further improving the discharge speed. In this embodiment, the guide strip 13 is set to fit against the inner wall of the drum 2. This allows the material that leaks through the gap between the stirring blade 3 and the inner wall of the drum 2 to be discharged, making the discharge cleaner. Furthermore, as mentioned above, the reversing discharge blade 12 and the guide strip 13 can also increase the fluidity of the material during the coating process.

[0026] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2The coating machine's reversing discharge mechanism also includes a swing arm 10. One end of the swing arm 10 is hinged to the sleeve portion 601, and the other end is rotatably connected to the support 11 fixedly mounted on the frame 1. The hinge axis between the swing arm 10 and the sleeve portion 601 is parallel to the rotation axis of the support 11. According to the structure provided in this embodiment, when the swing arm 10 rotates outward around the support 11, it can drive the discharge hopper 6 away from the opening of the cylindrical section 5, facilitating the feeding operation of the coating machine. When discharge is required, the swing arm 10 rotates around the support 11 towards the opening of the cylindrical section 5, so that the sleeve portion 602 of the discharge hopper 6 moves up and covers the opening of the cylindrical section 5, or even fits into the outer wall of the cylindrical section 5 by a set distance, to complete the docking of the cylindrical section 5 and the sleeve portion 602 to facilitate the material being guided from the funnel portion 602. The significance of the hinged connection between the swing arm 10 and the sleeve 601 is that, during the process of the swing arm 10 moving the sleeve 602 closer to or further away from the cylindrical section 5, the orientation of the sleeve 602 can be flexibly adjusted in real time to align with the opening of the cylindrical section 5. At the same time, it is understood that there is a set gap between the inner diameter of the sleeve 602 and the outer diameter of the cylindrical section 5. The size of the gap is related to the length of the swing arm 10, and is not specifically limited here. It can be determined by those skilled in the art according to the specific specifications of the coating machine.

[0027] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0030] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reversing discharge mechanism for a coating machine, comprising a frame (1), a drum (2) rotatably disposed within the frame (1) and having conical sections at both ends, and a stirring blade (3) disposed on the inner wall of the straight section of the drum (2), wherein one end of the conical section has an opening, characterized in that, Also includes: A cylindrical section (5) is connected to the opening in the roller (2); The reverse discharge blade (12) is alternately arranged with the stirring blade (3), and the inclination angle of the reverse discharge blade (12) and the stirring blade (3) on the axis of the drum (2) is opposite. The discharge blade (4) is located on the inner wall of a conical section of the drum (2) with the opening and is connected to the reverse discharge blade (12). When the drum (2) reverses, the discharge blade (4) is used to guide the material flowing out from the reverse discharge blade (12) to the outer edge of the cylindrical section (5). The discharge hopper (6) can be moved close to and cover the outer port edge of the cylindrical section (5); the lower side of the discharge hopper (6) is provided with a funnel part (602) that communicates with the inner wall of the cylindrical section (5) for discharging the material.

2. The coating machine reversing discharge mechanism according to claim 1, characterized in that: The discharge hopper (6) includes a sleeve part (601), and the funnel part (602) is connected to the lower side wall of the sleeve part (601) and communicates with the inside of the sleeve part (601). The outer end of the sleeve part (601) is also provided with an openable and closable cover (603), and the cover (603) is provided with a viewing window that allows observation of the interior.

3. The coating machine reversing discharge mechanism according to claim 2, characterized in that: One side of the cover (603) is movably hinged to the sleeve portion (601), and the other side is provided with a locking handle (604) that can be locked to the sleeve portion (601).

4. The coating machine reversing discharge mechanism according to claim 2, characterized in that: The outlet (7) of the funnel (602) is provided with a valve plate (9) that is controlled to open and close by a switch handle (8).

5. The coating machine reversing discharge mechanism according to claim 2, characterized in that: A guide strip (13) is provided between the reverse discharge blade (12) and the discharge blade (4). The guide strip (13) and the reverse discharge blade (12) are inclined in the same direction on the axis of the drum (2). In the radial direction of the drum (2), the height of the guide strip (13) is smaller than that of the reverse discharge blade (12) and the discharge blade (4).

6. The coating machine reversing discharge mechanism according to any one of claims 2 to 5, characterized in that: It also includes a rocker arm (10), one end of which is movably hinged to the sleeve part (601), and the other end is rotatably connected to a support (11) fixedly mounted on the frame (1). The hinge axis of the rocker arm (10) and the sleeve part (601) is parallel to the rotation axis of the support (11).

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