Spraying gun and spraying device

Abstract

The utility model relates to the technical field of spraying processing, in particular to a spraying gun and a spraying device. The spray gun comprises a gun rack, a supporting handle is arranged at the rear end of the gun rack, a starting switch is arranged on the front side of the supporting handle, and a nozzle is connected to the front end of the gun rack. The side face of the gun rack is connected with a moving unit, the moving unit is connected with a shifting piece used for abutting against the starting switch, and the shifting piece is located on the front side of the starting switch. The starting switch is arranged on the front side of the supporting handle of the spray gun, the switch piece is arranged on the spray gun, the moving unit or an operator can control the spray gun to work by driving the shifting piece to abut against the starting switch, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of spray coating technology, and in particular to a spray gun and a spray coating device. Background Technology

[0002] Currently, most object painting is done manually, especially for clothing such as jeans, where coloring and pattern application are done. Manual painting is inefficient and poses significant health risks. Therefore, many manufacturers use semi-automatic painting machines, where manual loading and unloading of materials is handled by the machine, which then operates according to a pre-programmed sequence. However, due to the wide variety of materials, painting styles, and the limited number of pre-programmed procedures, manual painting remains the primary method of application.

[0003] To facilitate obtaining the spraying path program, the factory currently mainly uses a combination of spatial position sensors and spray guns. First, manual spraying is performed. During the spraying process, the spatial position sensor transmits spatial position parameters to the control unit in time sequence. The control unit converts the spatial position parameters with time variables into corresponding program commands, thereby obtaining the control program. Then, the control program controls the moving mechanism to drive the spray gun to move in position. The movement of the spray gun is consistent with the movement during manual operation.

[0004] When using manual spraying, in addition to acquiring spatial position parameters corresponding to time, it is also necessary to acquire corresponding working parameters. This is because the spray gun is not constantly spraying; for example, it may need to pause due to blank areas in the sprayed pattern. Therefore, the control unit also records the corresponding spray gun working intervals. In automatic spraying, the control unit controls the moving mechanism to drive the spray gun's movement and also controls the spraying rhythm. Therefore, when using automated spraying, an additional solenoid valve switch is required to control the spraying rhythm. Furthermore, when alternating between different sprayed materials, wiring needs to be replaced, causing inconvenience and increasing operating costs. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a spray gun that has a self-controlling switching structure, eliminating the need for a solenoid valve to control the spray gun's operation, thus making it convenient to use.

[0006] Another objective of this invention is to provide a spraying device having the aforementioned spray gun, which can be manually guided before automatic spraying, making it convenient to use.

[0007] A spray gun includes a gun holder, a handle at the rear end of the gun holder, a start switch at the front of the handle, and a nozzle connected to the front end of the gun holder; a moving unit is connected to the side of the gun holder, and the moving unit is connected to an actuating plate for pressing the start switch, the actuating plate being located in front of the start switch.

[0008] Furthermore, a switch plate for pressing the start switch is hinged to the middle of the gun mount. The switch plate is located in front of the start switch and behind the toggle switch.

[0009] Preferably, an elastic element is provided between the switch piece and the gun holder, the elastic element being used to push the switch piece away from the drive switch.

[0010] Preferably, the gun mount is connected to an induction switch for sensing the operation of the spray gun.

[0011] Furthermore, the upper end of the switch piece is U-shaped and rotatably connected to the gun mount via a fixed shaft.

[0012] Furthermore, the moving unit includes a linear module. The linear module is connected to and drives the actuating plate to move. The linear module may include a cylinder, the piston rod of which is connected to the actuating plate to drive the actuating plate to move. The linear module may also be an electric actuator, a lead screw motor, etc.

[0013] A spraying apparatus comprising:

[0014] The frame and the aforementioned spray gun are provided. The frame is connected to a moving mechanism for assisting the movement of the spray gun. The moving mechanism is connected to the spray gun and can drive the spray gun to move.

[0015] A spatial position sensor, connected to the spray gun, is used to obtain the position of the spray gun;

[0016] The control unit is electrically connected to the moving mechanism and the control position sensor.

[0017] Furthermore, the moving mechanism includes a two-dimensional planar moving mechanism, which further includes a lateral moving mechanism and a vertical moving mechanism.

[0018] Furthermore, the moving mechanism includes a three-dimensional moving mechanism, which includes a lateral moving mechanism, a longitudinal moving mechanism, and a vertical moving mechanism.

[0019] Furthermore, the moving mechanism includes a rotating mechanism or a robot capable of driving the spray gun to move in multiple dimensions.

[0020] Furthermore, a fixture assembly for fixing materials is connected below the support. A rotating mechanism is provided between the fixture assembly and the support. The rotating mechanism can drive the fixture assembly to rotate. The fixture assembly can rotate relative to the support through the rotating mechanism. The fixture assembly or the rotating mechanism is provided with an angle sensor for sensing the rotation of the fixture assembly or an angle encoder for recording the rotation angle of the fixture assembly.

[0021] Preferably, the rotating mechanism includes a fixed plate connected to the support, a reducer connected to the lower end of the fixed plate, a rotary motor connected to the input end of the reducer, and a fixture assembly connected to the output end of the reducer. More preferably, the fixture assembly is connected to an annular ring, the inner side of which is connected to the fixture assembly via several connecting rods.

[0022] The beneficial effects of this utility model are as follows: By setting a start switch on the front side of the spray gun handle and setting a switch plate on the spray gun, the moving unit or the operator can control the operation of the spray gun by driving the toggle plate to press the start switch, which is convenient to operate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of one structure of the spray gun in this embodiment.

[0024] Figure 2 This is a schematic diagram of the spray gun from another perspective.

[0025] Figure 3 This is a structural diagram of a spraying device.

[0026] Figure 4 This is another structural diagram of the spraying device.

[0027] Figure 5 This is a schematic diagram of another structure of the spray gun in this embodiment.

[0028] Figure 6 This is a third structural diagram of the spraying device.

[0029] Figure label:

[0030] 1—Handle; 2—Switch plate; 3—Toggle plate; 4—Nozzle; 5—Intermediate plate; 6—Moving unit; 7—Start switch; 8—Gun holder; 9—Frame; 10—Spray gun; 11—Moving mechanism; 12—Control unit; 13—Inductive switch; 14—Rotary motor; 15—Fixed plate; 16—Reducer; 17—Ring ring; 18—Jig assembly. Detailed Implementation

[0031] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0032] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0033] 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 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.

[0034] 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 application, "multiple" means two or more, unless otherwise explicitly specified.

[0035] The present invention will now be described in detail with reference to the accompanying drawings. Figures 1 to 3 As shown.

[0036] Example 1: See Figure 1 , Figure 2 A spray gun includes a gun holder 8, a support handle 1 at the rear end of the gun holder 8, a start switch 7 at the front side of the support handle 1, and a nozzle 4 connected to the front end of the gun holder 8; a moving unit 6 is connected to the side of the gun holder 8, and a toggle piece 3 for pressing the start switch 7 is connected to the moving unit 6, with the toggle piece 3 located in front of the start switch 7.

[0037] The moving unit 6 can be used to control the start of the spray gun 10. When the spray gun 10 is operated manually, the handle 1 is in the palm of the hand, and the fingers are in contact with the start switch 7. The hand holds the start switch 7 and the handle 1. When spraying is required, the fingers press against the start switch 7, which controls the operation of the spray gun 10. Specifically, the start switch 7, the pump, and the power supply are electrically connected to form a closed loop. When the start switch 7 is pressed and in a conducting state, the power supply supplies power to the pump and it operates. The pump pumps paint, dye, or other sprayable materials into the spray gun 10, and the nozzle 4 of the spray gun 10 sprays the sprayed material outward. When automatic control is performed, the moving unit 6 is connected to the control unit 12. The control unit 12 controls the movement of the moving unit 6. The moving unit 6 drives the toggle switch 3 to move. The toggle switch 3 abuts against the start switch 7 and triggers the start switch 7 to conduct.

[0038] It is understandable that the start switch 7 can be a pressure switch, requiring a certain amount of force to activate it. During manual operation, the spray gun 10 will only spray material when the handle 1 and the start switch 7 are gripped firmly and the actuating plate 3 applies significant pressure to the start switch 7. When spraying is no longer needed, simply reduce the grip and release the start switch 7.

[0039] Secondly, since the surface area of ​​the gun mount 8 is relatively small, it may not be able to be directly connected to the moving unit 6. To facilitate connection, an intermediate plate 5 is connected to the side of the gun mount 8, and it is connected to the moving unit 6 through the intermediate plate 5. It can also be connected to the moving mechanism 11 through the intermediate plate 5.

[0040] See Figure 1 The gun mount 8 is hinged in the middle to a switch piece 2 for pressing the start switch 7. The switch piece 2 is located in front of the start switch 7 and behind the toggle piece 3.

[0041] The switch piece 2 is designed to prevent direct contact between the user's hand and the start switch 7, thus avoiding contamination of the start switch 7 by impurities from the user's hands. When the spray gun 10 is operated manually, the handle 1 is positioned in the palm of the hand, with the fingers abutting against the switch piece 2. Holding the switch piece 2 and handle 1, when spraying is required, the fingers drive the switch piece 2 to rotate and press against the start switch 7, which controls the operation of the spray gun 10. During automatic control, the control unit 12 controls the movement of the moving unit 6. The moving unit 6 moves the toggle piece 3, which pushes the switch piece 2 to rotate, causing the switch piece 2 to abut against the start switch 7 and triggering the start switch 7 to conduct.

[0042] Preferably, an elastic element (not shown in the figure) is provided between the switch piece 2 and the gun holder 8. The elastic element is used to push the switch piece 2 away from the drive switch.

[0043] The elastic element prevents the switch piece 2 from constantly contacting the start switch 7, and also reduces or prevents accidental triggering. The elastic element can be a compression spring or a torsion spring; the elastic element prevents the lower end of the switch piece 2 from rotating toward or approaching the start switch 7.

[0044] See Figure 1 The upper end of the switch piece 2 is U-shaped and rotatably connected to the gun mount 8 via a fixed shaft. To facilitate the installation of the switch piece 2, the switch piece 2 is connected to the gun mount 8 via a fixed shaft, and the switch piece 2 can rotate relative to the gun mount 8.

[0045] See Figure 1 The moving unit 6 includes a linear module. The linear module is connected to and drives the actuating plate 3 to move. The linear module may include a cylinder, the piston rod of which is connected to the actuating plate 3 to drive the actuating plate 3 to move. The linear module may also be an electric actuator, a lead screw motor, etc.

[0046] See Figure 5The gun mount 8 is connected to a sensor switch 13 for sensing the operation of the spray gun.

[0047] The inductive switch 13 is connected to the control unit and is used to transmit the spray gun's operating status information to the control unit. In a specific configuration, the sensing element of the inductive switch 13 is close to the switch plate 2. When the switch plate 2 is pushed by a linear module such as a cylinder, the upper end of the switch plate 2 will touch the sensing element of the inductive switch 13, and then the inductive switch 13 will send a high-level signal to the control unit. The control unit determines the operating status of the spray gun based on the received level signal, and whether it matches the control operating status. In other words, it checks whether the control signal sent by the control unit matches the received operating status signal.

[0048] Example 2: A spraying device, see Figure 3 , Figure 4 It includes: a frame 9, the frame 9 being connected to a moving mechanism 11 for assisting the movement of the spray gun 10, the moving mechanism 11 being connected to the spray gun 10 and capable of driving the spray gun 10 to move; it also includes a spatial position sensor (not shown in the figure) and a control unit 12, the spatial position sensor being connected to the spray gun 10 for obtaining the position of the spray gun 10; the control unit 12 being electrically connected to the moving mechanism 11 and the control position sensor.

[0049] When the spraying device is in operation, the support is connected to the spray gun 10 via the moving mechanism 11. The object to be sprayed is placed in a predetermined position, and then the first manual operation is performed. The operator holds the spray gun 10 and begins spraying. During the operation, the spatial position sensor acquires the spatial coordinates of the spray gun 10 and sends the spatial coordinates and operation time to the control unit 12 in chronological order. After the operator finishes the operation, the control unit 12 acquires the spatial change information of the spray gun 10. When performing the second operation, no manual operation is required. The control unit 12 converts the spatial change information of the spray gun 10 into control commands, controlling the moving mechanism 11 to drive the spray gun 10 to move.

[0050] The control unit 12 can be based on existing technology and is widely used in navigation and movement. It collects movement coordinates and then controls the movement mechanism 11 to move according to the changes in the movement coordinates. The control unit 12 includes PLC (Programmable Logic Controller), MCU (Central Processing Unit), or IC (Integrated Circuit), etc.

[0051] When the spray gun 10 is connected to the spatial position sensor, it can be either detachable or fixed; it can also be indirectly connected via other intermediate connectors to maintain synchronized operation with the spray gun 10. A detachable connection is preferable, as the spatial position sensor can be removed after the initial spatial position data acquisition, reducing the risk of damage.

[0052] See Figure 4The moving mechanism 11 includes a two-dimensional planar moving mechanism 11, which comprises a horizontal moving mechanism 11 and a vertical moving mechanism 11. The two-dimensional planar moving mechanism 11 drives the spray gun 10 to move in a two-dimensional plane, which is substantially parallel to the surface of the material being sprayed.

[0053] When the material is fixed, the spray gun 10 basically only needs to spray pigments, paints or other substances onto the surface of the material. During spraying, the horizontal movement mechanism 11 can drive the spray gun 10 to move horizontally, and the vertical movement mechanism 11 can drive the spray gun 10 to move up and down.

[0054] See Figure 4 The moving mechanism 11 includes a three-dimensional moving mechanism 11, which includes a horizontal moving mechanism 11, a vertical moving mechanism 11, and a vertical moving mechanism 11.

[0055] When the spray gun 10 moves, in order to facilitate its all-round movement, the moving mechanism 11 in this embodiment is set as a three-dimensional moving mechanism 11, which can move forward, backward, left, right and up.

[0056] To further enhance the diversity of movements, the moving mechanism 11 includes a rotating mechanism or a robot capable of driving the spray gun 10 to move in multiple dimensions.

[0057] In addition to parallel movement, it can also be flipped if necessary; for example, when the surface of the object to be sprayed is curved, the spray gun 10 may need to be rotated to facilitate spraying. Therefore, the moving mechanism 11 may also include a rotating mechanism and a multi-dimensional moving robot. The rotating mechanism can assist in driving the spray gun 10 to rotate; the robot can also assist the spray gun 10 to rotate.

[0058] The lateral movement mechanism 11, the longitudinal movement mechanism 11, and the vertical movement mechanism 11 can all adopt linear modules, which can be existing technologies. The rotating mechanism can adopt a combination of a motor and a rotating disk, with the motor driving the rotating disk to rotate and thus driving the spray gun 10 to rotate; a transmission mechanism, such as a belt drive mechanism or a gear drive mechanism, can also be set between the motor and the rotating disk.

[0059] See Figure 4 , Figure 6 A fixture assembly 18 for fixing materials is connected below the support. A rotating mechanism is provided between the fixture assembly 18 and the support. The rotating mechanism can drive the fixture assembly 18 to rotate. The fixture assembly 18 can rotate relative to the support through the rotating mechanism. The fixture assembly 18 or the rotating mechanism is provided with an angle sensor for sensing the rotation of the fixture assembly 18 or an angle encoder for recording the rotation angle of the fixture assembly 18.

[0060] In practical implementation, for ease of processing, the fixture assembly 18 is generally connected to the support to facilitate positioning of the object to be sprayed. During actual spraying, the surface of the object may not be flat but curved. To simplify spraying on curved surfaces, the spray gun 10 is generally rotated. However, sometimes the rotation of the spray gun 10 may be limited due to workspace constraints. In this case, the fixture assembly 18 needs to be rotated. In this embodiment, a rotating mechanism is used to drive the fixture assembly 18 to rotate. The fixture assembly 18 can also be manually driven to rotate using the rotating mechanism. When the fixture assembly 18 needs to be rotated during spraying, it is manually rotated during the first spray. During rotation, the rotation angle of the fixture assembly 18 is obtained through an angle sensor or angle encoder, and the angle sensor or angle encoder sends the angle change information to the control unit 12. During the next automatic spraying, the control unit 12 will control the rotating mechanism to drive the fixture assembly 18 to rotate in a timely manner to coordinate with the action of the spray gun 10. When specifically setting up an angle sensor or angle encoder, it can be set on the fixture assembly 18 or the rotating mechanism.

[0061] See Figure 6 The rotating mechanism includes a fixed plate 15 connected to a bracket, a reducer 16 connected to the lower end of the fixed plate 15, a rotary motor 14 connected to the input end of the reducer 16, and a fixture assembly 18 connected to the output end of the reducer 16. More preferably, the fixture assembly 18 is connected to an annular ring 17, and the inner side of the annular ring 17 is connected to the fixture assembly 18 via several connecting rods.

[0062] The rotating mechanism employs a combination of a rotary motor 14 and a reducer 16. The rotary motor 14 drives the reducer 16 to rotate, which in turn drives the fixture assembly 18 to rotate, thereby causing the object to be sprayed, which is connected to the fixture assembly 18, to rotate. After rotation, the rotation data is acquired by an angle sensor and an angle encoder, and then transmitted to the control unit 12. Of course, in application, the reducer 16 can be omitted, and the rotary motor 14 can be directly connected to the fixture assembly 18. The reducer 16 can be used to control the rotation speed of the fixture assembly 18. Secondly, to facilitate manual operation of the fixture assembly 18, an annular ring 17 is provided on the outside of the fixture assembly 18 in this embodiment. The inner side of the annular ring 17 is connected to the fixture assembly 18 through several connecting rods. During operation, the operator holds the annular ring 17 with one hand to rotate it and holds the spray gun 10 with the other hand to perform the spraying work.

[0063] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A spray gun comprising a gun holder, a rear end of the gun holder being provided with a handle, a front end of the gun holder being connected with a spray head; characterized in that: The front side of the handle is provided with a starting switch, the side of the gun holder is connected with a moving unit, the moving unit is connected with a push piece for pressing the starting switch, and the push piece is located on the front side of the starting switch.

2. The lance of claim 1, characterized in that: The middle part of the gun holder is hingedly connected with a switch piece for pressing the starting switch, the switch piece is located on the front side of the starting switch and on the rear side of the push piece.

3. The lance of claim 1 wherein: An elastic member is arranged between the switch piece and the gun holder, and the elastic member is used to push the switch piece away from the driving switch.

4. The lance of claim 1 wherein: The moving unit comprises a linear module. The linear module is connected with the push piece and drives the push piece to move.

5. The lance of claim 1 wherein: The gun holder is connected with an induction switch for sensing the working of the spray gun.

6. A spray device characterized by: It comprises: The bracket body and the spray gun of any one of claims 1 to 5, the bracket body is connected with a moving mechanism for assisting the movement of the spray gun, the moving mechanism is connected with the spray gun and can drive the spray gun to move; A space position sensor is connected with the spray gun and is used to obtain the position of the spray gun; A control unit is electrically connected with the moving mechanism and the control position sensor.

7. The spray device of claim 6, wherein: The moving mechanism comprises a planar two-dimensional moving mechanism, which comprises a horizontal moving mechanism and a vertical moving mechanism; or the moving mechanism comprises a three-dimensional moving mechanism, which comprises a horizontal moving mechanism, a longitudinal moving mechanism and a vertical moving mechanism.

8. A spray device according to claim 6 or 7, wherein: The moving mechanism comprises a rotating mechanism or a robot capable of driving the spray gun to move in multiple dimensions.

9. The spray device of claim 6 or 7, wherein: A jig assembly for fixing materials is connected below the bracket, a rotating mechanism is arranged between the jig assembly and the bracket, the rotating mechanism can drive the jig assembly to rotate, the jig assembly can rotate relative to the bracket through the rotating mechanism, and the jig assembly or the rotating mechanism is provided with an angle sensor for sensing the rotation angle of the jig assembly or an angle encoder for recording the rotation angle of the jig assembly.

10. The spray device of claim 9, wherein: The rotating mechanism comprises a fixed plate connected with the bracket, the lower end of the fixed plate is connected with a speed reducer, the input end of the speed reducer is connected with a rotating motor, and the output end of the speed reducer is connected with the jig assembly. More preferably, the jig assembly is connected with an annular ring, and the inner side of the annular ring is connected with the jig assembly through a plurality of connecting rods.

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