Spray gun device of coating machine

Abstract

The utility model discloses a coating machine spray gun device which comprises a spray gun arm and a fixed bearing seat, a spray gun is arranged on the spray gun arm, the fixed bearing seat is arranged on the inner side of a coating machine door, the spray gun arm is arranged on the fixed bearing seat in a penetrating mode and extends to the outer side of the coating machine door, and a first sealing structure is arranged between the fixed bearing seat and the coating machine door. And a second sealing structure is arranged between the fixed bearing seat and the spray gun arm. The sealing device has the advantages of being small in sealing difficulty and high in sealing stability.

Description

Technical Field

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

[0002] During the coating process, the fluidity of the tablets changes. To ensure atomization, the distance between the spray gun and the tablet bed needs to be adjusted. Existing technology, such as patent CN202342474U, discloses a coating machine with an adjustable spray gun angle. A handle drives a rotating shaft to power a reduction gearbox. Gear A within the reduction gearbox drives gear B on the spray gun rod, causing the spray gun rod to rotate. Simultaneously, the rotation of the rotating shaft moves the needle of an angle indicator. In this machine, the bearing housing for fixing the spray gun rod is located outside the coating machine's door, resulting in a direct seal between the spray gun rod and the door. This seal is difficult to achieve and has poor stability. Furthermore, the component outside the coating machine door used to adjust the spray gun rod is quite long. The specific change in the spray gun rod angle is indirectly indicated by a gear-driven rotating shaft that rotates the angle indicator, which is not intuitive and may be distorted. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a coating machine spray gun device with low sealing difficulty and high sealing stability.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A coating machine spray gun device includes a spray gun arm and a fixed bearing seat. The spray gun is mounted on the spray gun arm, the fixed bearing seat is located on the inner side of the coating machine door, the spray gun arm passes through the fixed bearing seat and extends to the outer side of the coating machine door, a first sealing structure is provided between the fixed bearing seat and the coating machine door, and a second sealing structure is provided between the fixed bearing seat and the spray gun arm.

[0006] As a further improvement to the above technical solution:

[0007] The first sealing structure is a sealing ring, and a sealing groove is provided on the contact surface between the fixed bearing seat and the coating machine door, and the sealing ring is located in the sealing groove.

[0008] The second sealing structure is a skeleton oil seal.

[0009] The coating machine spray gun device also includes an angle adjustment mechanism, which is located on the outside of the coating machine door and connected to the extension end of the spray gun arm.

[0010] The angle adjustment mechanism includes a worm gear and a worm, the worm meshing with the worm gear, and one end of the worm gear's rotating shaft connected to the spray gun arm.

[0011] A knob is connected to one end of the worm gear.

[0012] The worm gear and worm are provided with a housing on the outside, the housing is located on the door of the coating machine, and the knob is located outside the housing.

[0013] The rotating shaft of the knob is connected to the housing via a bearing.

[0014] The housing is provided with an angle indicator, and the other end of the worm gear rotating shaft is provided with a pointer that faces the angle indicator.

[0015] The housing is detachably connected to a cover, and the angle indicator is located on the cover.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] The coating machine spray gun device disclosed in this utility model has a fixed bearing seat located inside the coating machine door, and a spray gun arm passing through the fixed bearing seat and extending to the outside of the coating machine door. That is, the spray gun arm is sealed to the coating machine door through the fixed bearing seat. Compared with the rotating spray gun rod directly sealing to the coating machine door, since there is no relative position change between the fixed bearing seat and the coating machine door, the sealing difficulty is smaller and the sealing stability is better by sealing the two through the first sealing structure. Then, the fixed bearing seat and the spray gun arm are sealed through the second sealing structure to ensure the integrity of the seal and further improve the overall sealing effect. Attached Figure Description

[0018] Figure 1 This is a half-section three-dimensional structural diagram of the coating machine spray gun device of this utility model.

[0019] Figure 2 yes Figure 1 A magnified structural diagram of point A in the middle.

[0020] Figure 3 This is a top view cross-sectional structural diagram of the coating machine spray gun device of this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the spray gun device for the coating machine of this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram of the coating machine spray gun device after the sealing plate has been removed.

[0023] Figure 6 This is a schematic diagram of the application structure of the spray gun device for the coating machine of this utility model.

[0024] The labels in the diagram represent: 1. Spray gun arm; 2. Fixed bearing seat; 3. Coating machine door; 4. First sealing structure; 5. Second sealing structure; 6. Sealing groove; 7. Angle adjustment mechanism; 71. Worm gear; 72. Worm; 73. Knob; 74. Bearing; 75. Pointer; 8. Housing; 81. Angle indicator dial; 82. Cover. 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] Figures 1 to 6 This invention illustrates one embodiment of the coating machine spray gun device. The coating machine spray gun device of this embodiment includes a spray gun arm 1 and a fixed bearing seat 2. The spray gun is disposed on the spray gun arm 1, and the fixed bearing seat 2 is disposed on the inner side of the coating machine door 3. The spray gun arm 1 passes through the fixed bearing seat 2 and extends to the outer side of the coating machine door 3. A first sealing structure 4 is provided between the fixed bearing seat 2 and the coating machine door 3, and a second sealing structure 5 is provided between the fixed bearing seat 2 and the spray gun arm 1.

[0030] In this coating machine spray gun device, the fixed bearing seat 2 is located inside the coating machine door 3, and the spray gun arm 1 passes through the fixed bearing seat 2 and extends to the outside of the coating machine door 3. That is, the spray gun arm 1 is sealed to the coating machine door 3 through the fixed bearing seat 2. Compared with the rotating spray gun rod directly sealing to the coating machine door 3, since the fixed bearing seat 2 and the coating machine door 3 do not change in relative position, the static seal between the two is achieved through the first sealing structure 4, which is less difficult to seal and has better sealing stability. Then, the fixed bearing seat 2 and the spray gun arm 1 are sealed through the second sealing structure 5 to ensure the integrity of the seal and further improve the overall sealing effect.

[0031] In this embodiment, as Figure 2 and Figure 3 As shown, the first sealing structure 4 is a sealing ring, and a sealing groove 6 is provided on the contact surface between the fixed bearing seat 2 and the coating machine door 3, with the sealing ring located within the sealing groove 6. The structure is simple and low in cost.

[0032] In this embodiment, as Figure 3 As shown, the second sealing structure 5 is a skeleton oil seal. It matches the dynamic seal between the fixed bearing housing 2 and the spray gun arm 1.

[0033] In this embodiment, as Figure 4 and Figure 5 As shown, the coating machine spray gun device also includes an angle adjustment mechanism 7, which is located outside the coating machine door 3 and connected to the extension end of the spray gun arm 1. The angle adjustment mechanism 7 drives the spray gun arm 1 and the spray gun 1 to adjust their angles, ensuring that the coating liquid can better cover the sheet bed in the roller during the coating process, thus achieving better coating.

[0034] In this embodiment, as Figure 5 As shown, the angle adjustment mechanism 7 includes a worm gear 71 and a worm 72. The worm 72 meshes with the worm gear 71, and one end of the rotating shaft of the worm gear 71 is connected to the spray gun arm 1. The spray gun arm 1 is rotated through the transmission of the worm gear 72 and the worm 71, thereby realizing the angle adjustment of the spray gun mounted on the spray gun arm 1. The worm gear 71 and the worm 72 are arranged vertically, which can change the transmission direction, shorten the overall length of the transmission components, and make the structure more compact.

[0035] In this embodiment, as Figure 4 and Figure 5 As shown, a knob 73 is connected to one end of the worm gear 72. By rotating the knob 73, the worm gear 72 is rotated, which in turn drives the worm wheel 71 to rotate, thereby adjusting the angle of the spray gun arm 1. The structure is simple and the operation is convenient.

[0036] In this embodiment, as Figure 4 , Figure 5 and Figure 6As shown, a housing 8 is provided on the outer side of the worm gear 71 and the worm 72. The housing 8 is located on the door 3 of the coating machine, and the knob 73 is located outside the housing 8. This protects the transmission structure. Specifically, the worm 72 is rotatably installed inside the housing 8, which also facilitates the installation of the worm 72.

[0037] In this embodiment, as Figure 5 As shown, the rotation shaft of knob 73 is connected to housing 8 via bearing 74. This reduces friction and improves transmission stability.

[0038] In this embodiment, as Figure 4 As shown, the housing 8 is equipped with an angle indicator dial 81, and the other end of the rotating shaft of the worm gear 71 is equipped with a pointer 75 facing the angle indicator dial 81. The rotation angle of the worm gear 71, i.e. the adjustment angle of the spray gun arm 1, can be directly and intuitively determined.

[0039] In this embodiment, as Figure 6 As shown, the housing 8 is detachably connected to a cover 82, and an angle indicator 81 is located on the cover 82. This facilitates the adjustment of the angle reading and can also improve the sealing effect to a certain extent.

[0040] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A coating machine spray gun device, characterized in that: The device includes a spray gun arm (1) and a fixed bearing seat (2). The spray gun is mounted on the spray gun arm (1). The fixed bearing seat (2) is located inside the coating machine door (3). The spray gun arm (1) passes through the fixed bearing seat (2) and extends to the outside of the coating machine door (3). A first sealing structure (4) is provided between the fixed bearing seat (2) and the coating machine door (3). A second sealing structure (5) is provided between the fixed bearing seat (2) and the spray gun arm (1).

2. The coating machine spray gun device according to claim 1, characterized in that: The first sealing structure (4) is a sealing ring. A sealing groove (6) is provided on the contact surface between the fixed bearing seat (2) and the coating machine door (3). The sealing ring is located in the sealing groove (6).

3. The coating machine spray gun device according to claim 1, characterized in that: The second sealing structure (5) is a skeleton oil seal.

4. The coating machine spray gun device according to any one of claims 1 to 3, characterized in that: The coating machine spray gun device also includes an angle adjustment mechanism (7), which is located outside the coating machine door (3) and connected to the extension end of the spray gun arm (1).

5. The coating machine spray gun device according to claim 4, characterized in that: The angle adjustment mechanism (7) includes a worm gear (71) and a worm (72), the worm (72) meshing with the worm gear (71), and one end of the rotating shaft of the worm gear (71) being connected to the spray gun arm (1).

6. The coating machine spray gun device according to claim 5, characterized in that: A knob (73) is connected to one end of the worm gear (72).

7. The coating machine spray gun device according to claim 6, characterized in that: The worm gear (71) and worm (72) are provided with a housing (8) on the outside of the housing (8), the housing (8) is located on the door (3) of the coating machine, and the knob (73) is located outside the housing (8).

8. The coating machine spray gun device according to claim 7, characterized in that: The rotation axis of the knob (73) is connected to the housing (8) via a bearing (74).

9. The coating machine spray gun device according to claim 7, characterized in that: The housing (8) is provided with an angle indicator (81), and the other end of the worm gear (71) rotation shaft is provided with a pointer (75) facing the angle indicator (81).

10. The coating machine spray gun device according to claim 9, characterized in that: The housing (8) is detachably connected to a cover (82), and the angle indicator (81) is located on the cover (82).

Images