Coating machine

Abstract

The utility model discloses a coating machine which comprises a machine body, one side of the machine body is provided with an inlet and outlet for a spray gun to go in and out, the machine body is provided with a moving mechanism above the inlet and outlet, the machine body is further provided with a limiting mechanism used for limiting rotation of the moving mechanism, and the moving mechanism is obliquely provided with a rotating rod capable of rotating horizontally. The rotating rod is provided with an opening and closing door used for opening and closing the inlet and outlet, the opening and closing door is provided with a spraying rod and / or a spraying gun mounting frame used for mounting a spraying gun, and the spraying gun mounting frame and / or the spraying rod can be driven by the moving mechanism to enter and exit the inlet and outlet. According to the coating machine disclosed by the utility model, the spray gun mounting rack and the spray rod are removed, so that the coating machine is not limited by the size of an inlet and an outlet and has strong adaptability; in the horizontal rotating process of the rotating rod, natural rotation cannot be influenced by gravity, the structure is simple, and stability is good; the rotating rod is obliquely arranged, avoiding is facilitated when the roller is replaced, and operation is convenient; and the limiting mechanism is arranged to prevent the moving mechanism from rotating in the moving process or when the rotating rod rotates, and the stability is good.

Description

Technical Field

[0001] This utility model relates to the technical field of food and pharmaceutical packaging machinery and equipment, specifically to a coating machine. Background Technology

[0002] A coating machine is a mechanical device used to coat tablets, pills, or other granular materials with a protective film. When using a coating machine, it is often necessary to change the rollers and spray gun.

[0003] Chinese patent document CN107260548B discloses a spray gun mounting bracket mechanism for a replaceable roller coating machine. A first connecting rod is hinged to a first hinged base and a second hinged base, allowing the spray gun mounting bracket and the spray gun mounted on it to be pulled out of the coating roller and rotated to one side of the machine body for roller and spray gun replacement. The applicant found that this technical solution uses a first connecting rod rotating around the first hinged base to pull the spray gun out of the roller. However, because the length of the first connecting rod is fixed, and the method of pulling out the spray gun mounting bracket and the spray gun mounted on it by rotation is limited by the size of the feed inlet, the length of the spray gun mounting bracket and the size of the spray gun that can be pulled out are limited. In other words, the length of the spray gun mounting bracket and the size of the spray gun are restricted, making it unsuitable for replacing long spray gun mounting brackets and large spray guns, resulting in poor adaptability.

[0004] Chinese patent document CN111838729A discloses a coating machine rotary pull rod device and a coating machine, including a fixed slide rail, a sliding seat and a rotary pull rod for mounting a spray gun. The sliding seat is slidably mounted on the fixed slide rail, and the rotary pull rod is rotatably mounted on the sliding seat. A limiting elastic element for limiting the rotation position of the rotary pull rod is provided between the sliding seat and the rotary pull rod.

[0005] The applicant discovered several drawbacks in this technical solution: Since the rotating rod is mounted on a sliding seat and its rotation axis is horizontal, when changing the roller, the rotating rod must be rotated along the horizontal rotation axis to the replacement position to turn the spray gun to one side. During this process, to prevent the spray gun from naturally rotating under gravity, a limiting spring is required to restrict the rotation angle of the rotating rod. However, using a limiting spring results in a complex structure, and the limiting spring is prone to damage due to prolonged stress. Furthermore, when changing the roller, the spray gun is prone to rotational oscillation, leading to poor stability. Utility Model Content

[0006] This invention addresses the problems existing in the use of the prior art by providing a coating machine that is simple in structure, highly adaptable, stable, and easy to operate.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A coating machine includes a body with an inlet / outlet for a spray gun on one side. A moving mechanism is provided on the body diagonally above the inlet / outlet. The body also has a limiting mechanism for restricting the rotation of the moving mechanism. A horizontally rotatable rotating rod is obliquely provided on the moving mechanism. An opening / closing door for opening and closing the inlet / outlet is provided on the rotating rod. A spray bar and / or a spray gun mounting bracket for mounting the spray gun are provided on the opening / closing door. The spray gun mounting bracket and / or the spray bar can move in and out of the inlet / outlet under the drive of the moving mechanism.

[0009] As a further improvement to the above technical solution:

[0010] The moving mechanism includes a guide rail mounted on the machine body and a movable frame slidably mounted on the guide rail, the movable frame being connected to a rotating rod.

[0011] The limiting mechanism includes a support wheel located below the movable frame and limiting wheels located on both sides of the movable frame.

[0012] Both the support wheel and the limiting wheel are located on the side of the machine body closest to the rotating rod.

[0013] The movable frame has a square cross-section. The support wheel abuts against the bottom surface of the movable frame, and the limiting wheel abuts against the side surface of the movable frame to limit the axial rotation of the movable frame.

[0014] The movable frame is equipped with a bearing seat, and the top end of the rotating rod is connected to the bearing seat via a bearing, while the bottom end is connected to the opening and closing door.

[0015] The spray gun mounting bracket and / or spray bar are perpendicular to the inlet and outlet of the coating machine.

[0016] The moving mechanism moves in a direction perpendicular to the rotation axis of the rotating rod, and the opening and closing door can rotate a specific angle around the rotation axis.

[0017] The machine body is provided with a roller door on one side for the rollers to enter and exit, and the inlet and outlet are located on the roller door.

[0018] The machine body is equipped with a roller, and the spray gun is provided at the end of the spray gun mounting bracket away from the closing door. The opening and closing door is detachably connected to the roller door. When the opening and closing door closes the inlet and outlet, the spray gun and the spray gun mounting bracket extend into the roller.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This coating machine, in its design, first removes the spray gun mounting bracket and spray bar from the inlet / outlet, then rotates them to one side of the machine body. This method of removing the spray gun mounting bracket and spray bar is not limited by the size of the inlet / outlet, making it highly adaptable. During the horizontal rotation of the rotating rod, the opening / closing door and the spray gun mounting bracket and spray bar on it always rotate on a horizontal plane, without being affected by gravity and thus not requiring restrictions on the rotation angle of the rotating rod. This results in a simple structure and good stability. By arranging the rotating rod at an angle, the rotation radius is larger compared to a vertically arranged rotating rod. At the same rotation angle, the opening / closing door and the spray gun mounting bracket and spray bar on it can rotate a greater distance, facilitating avoidance during operations such as changing rollers, making operation convenient. By setting a limiting mechanism, rotation of the moving mechanism during movement or rotation of the rotating rod is prevented, ensuring good stability. Attached Figure Description

[0021] Figure 1 This is the front view of the coating machine of this utility model.

[0022] Figure 2 This is a side sectional view of the coating machine of this utility model.

[0023] Figure 3 This is a top view of the coating machine of this utility model.

[0024] Legend: 1. Machine body; 11. Inlet / outlet; 12. Guide rail; 121. Support wheel; 122. Limit wheel; 13. Sliding seat; 14. Roller; 15. Roller door; 2. Moving frame; 3. Rotating rod; 31. Bearing; 32. Bearing seat; 33. Rotating shaft; 4. Opening / closing door; 5. Spray gun; 6. Spray gun mounting bracket; 7. Spray bar. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 utility model 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 utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Example 1:

[0030] like Figures 1 to 3 As shown, the coating machine of this embodiment includes a machine body 1. An inlet / outlet 11 for the spray gun 5 to enter and exit is provided on one side of the machine body 1. A moving mechanism is provided on the machine body 1 above the inlet / outlet 11. A limiting mechanism for restricting the rotation of the moving mechanism is also provided on the machine body 1. A horizontally rotatable rotating rod 3 is obliquely provided on the moving mechanism. An opening / closing door 4 for opening and closing the inlet / outlet 11 is provided on the rotating rod 3. A spray rod 7 and a spray gun mounting bracket 6 for mounting the spray gun 5 are provided on the opening / closing door 4. The spray gun mounting bracket 6 and the spray rod 7 can enter and exit the inlet / outlet 11 under the drive of the moving mechanism.

[0031] In this embodiment of the coating machine, when it is necessary to replace the roller 14, spray gun 5, or spray bar 7, the moving mechanism drives the rotating rod 3 to move to the right. Figure 2(The direction of movement of the moving mechanism) Because the opening and closing door 4 is connected to the rotating rod 3, it also drives the opening and closing door 4 and the spray gun mounting bracket 6 and spray bar 7 on the opening and closing door 4 to move to the right out of the inlet and outlet 11. After the spray gun mounting bracket 6 and spray bar 7 have completely moved out of the inlet and outlet 11, the rotating rod 3 rotates horizontally, driving the opening and closing door 4 and the spray gun mounting bracket 6 and spray bar 7 on the opening and closing door 4 to rotate horizontally to one side of the machine body 1, making room for changing the roller 14, spray gun 5 or spray bar 7. In this embodiment of the coating machine, the spray gun mounting bracket 6 and spray bar 7 are first moved out of the inlet / outlet 11, and then rotated to one side of the machine body 1. This method of moving the spray gun mounting bracket 6 and spray bar 7 is not limited by the size of the inlet / outlet 11, and has strong adaptability. During the horizontal rotation of the rotating rod 3, the opening / closing door 4 and the spray gun mounting bracket 6 and spray bar 7 on the opening / closing door 4 always rotate on the horizontal plane and will not rotate naturally due to gravity. There is no need to limit the rotation angle of the rotating rod 3, the structure is simple and the stability is good. By arranging the rotating rod 3 at an angle, the rotation radius is larger than that of the vertical setting of the rotating rod 3. At the same rotation angle, the opening / closing door 4 and the spray gun mounting bracket 6 and spray bar 7 on the opening / closing door 4 can rotate a greater distance, which is convenient for avoiding obstacles when changing the roller 14, etc., and the operation is convenient. By setting a limiting mechanism, the moving mechanism is prevented from rotating during the movement process or when the rotating rod 3 rotates, and the stability is good.

[0032] Furthermore, in this embodiment, as Figure 2 As shown, the moving mechanism includes a guide rail 12 mounted on the body 1 and a moving frame 2 slidably mounted on the guide rail 12. The moving frame 2 is connected to the rotating rod 3. The moving frame 2 slides along the guide rail 12, thereby driving the rotating rod 3 to move to the right. The structure is simple and reliable.

[0033] Furthermore, in this embodiment, as Figure 2 and Figure 3 As shown, the limiting mechanism includes a support wheel 121 located below the movable frame 2 and limiting wheels 122 located on both sides of the movable frame 2. The support wheel 121 supports the movable frame 2, preventing the center of gravity from shifting to the outside of the body 1 and deflecting downwards under the action of gravity when the movable frame 2 moves to the right; the limiting wheels 122 limit the movement of the movable frame 2 on both sides, preventing the movable frame 2 from rotating when it moves or the rotating rod 3 rotates. The limiting effect is good and the structure is stable.

[0034] Furthermore, in this embodiment, both the support wheel 121 and the limiting wheel 122 are located on the side of the body 1 closest to the rotating rod 3. The proximity of the support wheel 121 and the limiting wheel 122 to the rotating rod 3 reduces the suspended portion of the moving frame 2, resulting in a more stable structure.

[0035] Furthermore, in this embodiment, the movable frame 2 has a square cross-section. The support wheel 121 abuts against the bottom surface of the movable frame 2, and the limiting wheel 122 abuts against the side surface of the movable frame 2 to limit the axial rotation of the movable frame 2. The square-shaped movable frame 2, limited by the support wheel 121 at the bottom and the limiting wheels 122 on both sides, is less prone to axial rotation, resulting in a better limiting effect. The support wheel 121 and the limiting wheel 122 abut against the movable frame 2, reducing the movement space of the movable frame 2, preventing it from swaying, and further improving the support and limiting effects.

[0036] Furthermore, in this embodiment, as Figure 2 As shown, the movable frame 2 is equipped with a bearing seat 32, and the top end of the rotating rod 3 is connected to the bearing seat 32 via a bearing 31, while the bottom end is connected to the opening and closing door 4. The rotating rod 3 is connected to the movable frame 2 via the bearing 31. When the rotating rod 3 rotates horizontally, it will not cause the movable frame 2 to move, resulting in a simple and reliable structure.

[0037] Furthermore, in this embodiment, the spray gun mounting bracket 6 and the spray bar 7 are perpendicular to the inlet and outlet 11 when entering and exiting the coating machine. The moving direction of the moving mechanism is perpendicular to the inlet and outlet 11. Specifically, the arrangement direction of the guide rail 12 is perpendicular to the inlet and outlet 11, so that the spray gun mounting bracket 6 and the spray bar 7 are less likely to collide with the inlet and outlet 11 when entering and exiting the coating machine, and the length of the spray gun mounting bracket 6 and the spray bar 7 is not limited by the size of the inlet and outlet 11, making it more adaptable.

[0038] Furthermore, in this embodiment, the moving direction of the moving mechanism is perpendicular to the rotation axis 33 of the rotating rod 3. Specifically, the arrangement direction of the guide rail 12 is perpendicular to the rotation axis 33 of the rotating rod 3, resulting in a compact and reasonable structure. The opening and closing door 4 rotates around the rotation axis 33 by a specific angle, such as 30 degrees, 45 degrees, 90 degrees, or 180 degrees in the forward or reverse direction. By rotating the opening and closing door 4, the spray bar 7 or the spray gun mounting bracket 6 can be moved to the debugging and maintenance station.

[0039] Furthermore, in this embodiment, as Figure 1 As shown, a roller door 15 for the roller 14 to enter and exit is provided on one side of the machine body 1, and the inlet and outlet 11 are located on the roller door 15. Opening the opening and closing door 4 allows for operations such as feeding the roller 14, and opening the roller door 15 allows for operations such as replacing the roller 14. The structure is simple and the operation is convenient.

[0040] Furthermore, in this embodiment, as Figure 2As shown, the machine body 1 is equipped with a drum 14. A spray gun 5 is mounted on the end of the spray gun mounting bracket 6 away from the closing door 4. The opening and closing door 4 is detachably connected to the drum door 15. When the opening and closing door 4 closes the inlet and outlet 11, the spray gun 5 and the spray gun mounting bracket 6 extend into the drum 14. During the coating production process, the opening and closing door 4 and the drum door 15 are closed. The drum 14 rotates and stirs the tablet material inside the drum 14. The spray gun 5 extends into the drum 14 and sprays the tablet material inside the drum 14 with coating material for coating. During the cleaning process, the spray bar 7 also extends into the drum 14 to spray and clean the drum 14. The structure is simple and reliable.

[0041] Example 2:

[0042] The coating machine in this embodiment has a structure that is basically the same as that in embodiment one. The difference is that the coating machine in this embodiment (not shown in the figure) has a spray gun mounting bracket 6 on the opening and closing door 4 for mounting the spray gun 5. The spray gun mounting bracket 6 can move in and out of the inlet and outlet 11 under the drive of the moving mechanism.

[0043] In this embodiment of the coating machine, when it is necessary to replace the roller 14 or the spray gun 5, the moving mechanism drives the rotating rod 3 to move to the right. Since the opening and closing door 4 is connected to the rotating rod 3, it also drives the opening and closing door 4 and the spray gun mounting bracket 6 on the opening and closing door 4 to move to the right out of the inlet and outlet 11. After the spray gun mounting bracket 6 has completely moved out of the inlet and outlet 11, the rotating rod 3 rotates horizontally, driving the opening and closing door 4 and the spray gun mounting bracket 6 on the opening and closing door 4 to rotate horizontally to one side of the machine body 1, making room for replacing the roller 14 and the spray gun 5. In this embodiment of the coating machine, the spray gun mounting bracket 6 is first moved out of the inlet / outlet 11, and then rotated to one side of the machine body 1. This method of moving the spray gun mounting bracket 6 is not limited by the size of the inlet / outlet 11, and has strong adaptability. During the horizontal rotation of the rotating rod 3, the opening / closing door 4 and the spray gun mounting bracket 6 on the opening / closing door 4 always rotate on the horizontal plane and will not rotate naturally due to gravity. There is no need to limit the rotation angle of the rotating rod 3, the structure is simple and the stability is good. By arranging the rotating rod 3 at an angle, the rotation radius is larger than that of the vertical setting of the rotating rod 3. At the same rotation angle, the opening / closing door 4 and the spray gun mounting bracket 6 on the opening / closing door 4 can rotate a greater distance, which is convenient for avoiding obstacles when changing the roller 14, etc., and the operation is convenient. By setting a limiting mechanism, the moving mechanism is prevented from rotating during the movement process or when the rotating rod 3 rotates, and the stability is good.

[0044] Example 3:

[0045] The coating machine in this embodiment has a structure that is basically the same as that in embodiment one. The difference is that the coating machine in this embodiment (not shown in the figure) has a spray bar 7 on the opening and closing door 4. The spray bar 7 can move in and out of the inlet and outlet 11 under the drive of the moving mechanism.

[0046] In this embodiment of the coating machine, when it is necessary to replace the roller 14 or the spray bar 7, the moving mechanism drives the rotating rod 3 to move to the right. Since the opening and closing door 4 is connected to the rotating rod 3, it also drives the opening and closing door 4 and the spray bar 7 on the opening and closing door 4 to move to the right out of the inlet and outlet 11. After the spray bar 7 has completely moved out of the inlet and outlet 11, the rotating rod 3 rotates horizontally, driving the opening and closing door 4 and the spray bar 7 on the opening and closing door 4 to rotate horizontally to one side of the machine body 1, making room for the replacement of the roller 14 or the spray bar 7. In this embodiment of the coating machine, the spray bar 7 is first moved out of the inlet / outlet 11, and then rotated to one side of the machine body 1. This method of moving the spray bar 7 is not limited by the size of the inlet / outlet 11, and has strong adaptability. During the horizontal rotation of the rotating rod 3, the opening / closing door 4 and the spray bar 7 on the opening / closing door 4 always rotate on the horizontal plane and will not rotate naturally due to gravity. There is no need to limit the rotation angle of the rotating rod 3, the structure is simple and the stability is good. By arranging the rotating rod 3 at an angle, the rotation radius is larger than that of the vertical setting of the rotating rod 3. At the same rotation angle, the opening / closing door 4 and the spray bar 7 on the opening / closing door 4 can rotate a greater distance, which is convenient for avoiding obstacles when changing the roller 14, etc., and the operation is convenient. By setting a limiting mechanism, the moving mechanism is prevented from rotating during the movement process or when the rotating rod 3 rotates, and the stability is good.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the spirit and technical solution of the present utility model. Therefore, any simple modifications, equivalent substitutions, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A coating machine, comprising a body (1), wherein one side of the body (1) is provided with an inlet (11) for a spray gun (5) to enter and exit, characterized in that: A moving mechanism is provided on the body (1) above the inlet and outlet (11). The body (1) is also provided with a limiting mechanism for restricting the rotation of the moving mechanism. A rotating rod (3) that can rotate horizontally is provided on the moving mechanism. An opening and closing door (4) for opening and closing the inlet and outlet (11) is provided on the rotating rod (3). A spray rod (7) and / or a spray gun mounting bracket (6) for mounting a spray gun (5) are provided on the opening and closing door (4). The spray gun mounting bracket (6) and / or the spray rod (7) can enter and exit the inlet and outlet (11) under the drive of the moving mechanism.

2. The coating machine according to claim 1, characterized in that: The moving mechanism includes a guide rail (12) mounted on the body (1) and a moving frame (2) slidably mounted on the guide rail (12), the moving frame (2) being connected to the rotating rod (3).

3. The coating machine according to claim 2, characterized in that: The limiting mechanism includes a support wheel (121) located below the movable frame (2) and limiting wheels (122) located on both sides of the movable frame (2).

4. The coating machine according to claim 3, characterized in that: The support wheel (121) and the limiting wheel (122) are both located on the side of the body (1) near the rotating rod (3).

5. The coating machine according to claim 3, characterized in that: The cross-section of the movable frame (2) is square. The support wheel (121) abuts against the bottom surface of the movable frame (2), and the limiting wheel (122) abuts against the side surface of the movable frame (2) to limit the axial rotation of the movable frame (2).

6. The coating machine according to claim 2, characterized in that: The movable frame (2) is provided with a bearing seat (32), and the top end of the rotating rod (3) is connected to the bearing seat (32) through a bearing (31), and the bottom end is connected to the opening and closing door (4).

7. The coating machine according to claim 1, characterized in that: The spray gun mounting bracket (6) and / or spray bar (7) are perpendicular to the inlet and outlet (11) of the coating machine.

8. The coating machine according to claim 7, characterized in that: The moving direction of the moving mechanism is perpendicular to the rotation axis (33) of the rotating rod (3), and the opening and closing door (4) can rotate a specific angle with the rotation axis (33) as the center.

9. The coating machine according to any one of claims 1 to 8, characterized in that: The machine body (1) has a roller door (15) on one side for the roller (14) to enter and exit, and the inlet and outlet (11) are located on the roller door (15).

10. The coating machine according to claim 9, characterized in that: The machine body (1) is provided with a roller (14), and the spray gun mounting bracket (6) is provided with a spray gun (5) at one end away from the closing door (4). The opening and closing door (4) is detachably connected to the roller door (15). When the opening and closing door (4) closes the inlet and outlet (11), the spray gun (5) and the spray gun mounting bracket (6) extend into the roller (14).

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