Spray device

Abstract

To provide a spray device capable of inexpensively and stably spraying using a spray can.SOLUTION: A spray device 8 includes a holder 20 on which a spray can 6 is mounted, a vibrator 18 connected to the holder 20, and a controller 22 for operating and stopping the vibrator 18. Preferably, the spray device 8 further includes a switcher for changing a state of a button of the spray can 6. The controller 22 makes the switcher change the state of the button of the spray can 6. Preferably, the controller 22 makes the vibrator 18 vibrate the holder 20, and makes the switcher the spray can 6 be in a jet state, after vibration of the holder 20.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] This specification discloses a spray machine that uses a spray can. [Background technology]

[0002] A marking device is sometimes used in a steel plate production line. This marking device sprays paint from a nozzle, which is guided from an ink tank. This paint is sprayed toward the steel plate, thereby marking the steel plate. This marking device is disclosed in Patent Document 1. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 53-56430 Summary of the Invention [Problem to be solved by the invention]

[0004] Such a marking device requires an ink tank and a device for feeding paint from the ink tank to the nozzles, and a marking device equipped with an ink tank and a device for feeding paint to the nozzles is large and expensive.

[0005] In contrast, by using a spray can, the marking device can be made smaller and less expensive, but marking with a spray can is prone to spray defects.

[0006] The applicant's intention is to provide a spray machine that can stably spray at low cost using a spray can. [Means for solving the problem]

[0007] The spray machine disclosed herein includes a holder to which a spray can is attached, a vibrator connected to the holder, and a controller for activating and deactivating the vibrator.

[0008] The spray can has a button for changing between a spraying state and a stopped state. Preferably, the spray machine further includes a switch for operating the button to change the spray can between the spraying state and the stopped state. The controller changes the spray can between the spraying state and the stopped state by the switch.

[0009] Preferably, the controller causes the vibrator to vibrate the holder. After vibrating the holder, the controller causes the switch to switch the spray can to a spraying state.

[0010] Preferably, the spray machine further comprises a mover connected to the holder, and the controller controls the mover to move the holder between the spray position and the standby position for spraying the spray can.

[0011] The marking device disclosed in this specification includes an inspection device that inspects products, a conveyor that conveys the products inspected by the inspection device, a sensor that detects the products conveyed by the conveyor, and a spray device that receives a defect signal of the products inspected by the inspection device and marks the products when it receives a detection signal of the products from the sensor. Including, The spray machine comprises: A holder for attaching a spray can, a vibrator connected to the holder; and, A controller for activating and deactivating the vibrator. Equipped with. Effect of the Invention

[0012] The sprayer includes a vibrator that vibrates the spray can, and the sprayer can uniformly spray the fluid to be sprayed. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is a front view of a spray machine according to one embodiment, shown together with a conveyor and a steel bar. [Diagram 2] FIG. 2 is a bottom view of a portion of the sprayer of FIG. [Diagram 3] FIG. 3 is an explanatory view showing a part of the spray machine of FIG. [Figure 4] FIG. 4 is an explanatory diagram showing a cross section taken along line IV-IV in FIG. [Diagram 5] FIG. 5 is an explanatory diagram showing the spray machine of FIG. 1 in use. [Figure 6] FIG. 6 is an explanatory diagram showing another state of use of the spray machine of FIG. 1 together with a carrier and a steel bar. [Figure 7] FIG. 7 is a block diagram of a marking device including the sprayer of FIG. [Figure 8] FIG. 8 is a flowchart of a marking method using the marking device of FIG. [Figure 9] FIG. 9 is a flow chart of a method for vibrating a spray can using the marking device of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, preferred embodiments will be described in detail with reference to the drawings as appropriate.

[0015] 1 shows a conveyor 2, a steel bar 4, a spray can 6, and a spray machine 8. The steel bar 4 is placed on the conveyor 2. The spray can 6 is attached to the spray machine 8. The steel bar 4 is a rod-shaped steel material. The cross section of the steel bar 4 is circular, but the steel bar 4 is not limited to this.

[0016] The spray machine 8 includes a stand 10 , a mover 12 , a base 14 , a rotating shaft 16 , a vibrator 18 , a holder 20 and a controller 22 .

[0017] The mover 12 is attached to the base 10. The mover 12 has a guide block 24, a cylinder 26, and a rod 28. The guide block 24 is attached to the base 10. The cylinder 26 is attached to the guide block 24. The rod 28 is supported by the cylinder 26. The rod 28 is movable relative to the cylinder 26.

[0018] The base 14 is attached to the rod 28 of the mover 12. The pivot shaft 16 is attached to the base 14. The vibrator 18 is attached to the base 14. The vibrator 18 has a cylinder 30 and a rod 32. The cylinder 30 is attached to the base 14. The cylinder 30 is rotatable relative to the base 14. The rod 32 is supported by the cylinder 30. The rod 32 is movable relative to the cylinder 30.

[0019] As shown in Fig. 2, the holder 20 is attached to the rotating shaft 16. The sprayer 8 further includes a switch 34. The switch 34 is attached to the base 14. The switch 34 has a cylinder 36 and a rod 38. The cylinder 36 is attached to the base 14. The rod 38 is supported by the cylinder 36. The rod 38 is movable relative to the cylinder 36.

[0020] The controller 22 has an interface 22A for transmitting and receiving signals. The controller 22 can control the operations of the mover 12, the vibrator 18, and the switch 34. For example, although not shown, the sprayer 8 includes an air pipe and a valve for switching the flow path of the air pipe. The air pipe and the valve are connected to each of the mover 12, the vibrator 18, and the switch 34. The controller 22 can control each valve.

[0021] Fig. 3 shows a partially enlarged view of Fig. 1. The rotating shaft 16 is rotatable relative to the base 14 around its axis. The holder 20 is rotatable together with the rotating shaft 16 relative to the base 14. The vibrator 18 has a connector 40. The rod 32 of the vibrator 18 is connected to the rotating shaft 16 via the connector 40.

[0022] Fig. 4 shows a cross section taken along line IV-IV in Fig. 2. Fig. 4 shows a spray can 6 attached to a holder 20. This spray can 6 has a container 42, a spray button 44, and a spray hole 46. The spray hole 46 is formed in the spray button 44. The rod 38 of the switch 34 faces this spray button 44.

[0023] In FIG. 5, rod 32 of vibrator 18 protrudes relative to cylinder 30. Cylinder 30 is in a position rotated relative to base 14 from the position in FIG. 3. Due to the protrusion of rod 32, connector 40 is in a position rotated from the position in FIG. 3. Rotation shaft 16 rotates together with connector 40. Due to the rotation of rotation shaft 16, holder 20 is in a position rotated from the position in FIG. 3. In spray can 6, bottom 42A of container 42 is positioned above head 42B. This spray can 6 has rotated 90 degrees or more from the attitude in FIG. 1 with rotation shaft 16 as the center of rotation.

[0024] In Fig. 6, a steel bar 4 is placed on the conveyor 2. The rod 28 of the mover 12 protrudes relative to the cylinder 26. Due to the protrusion of the rod 28, the platform 14 is in a position closer to the steel bar 4 than in the position shown in Fig. 1. The spray can 6 is located above the steel bar 4. The rod 38 of the switch 34 protrudes relative to the cylinder 36. The protruding rod 38 presses the spray button 44 against the container 42 of the spray can 6. Paint is sprayed from the spray hole 46 of the spray can 6. This paint is sprayed towards the steel bar 4.

[0025] In the spray machine 8, the position of the spray can 6 shown in Fig. 6 is referred to as the spraying position. The position of the spray can 6 in Fig. 1 is referred to as the standby position. Also, in Fig. 6, the spray can 6 is spraying paint. In Figs. 1 and 2, the spray can 6 is not spraying paint. In the spray machine 8, the state of the spray can 6 shown in Fig. 6 is referred to as the spraying state. The state of the spray can 6 in Figs. 1 and 2 is referred to as the stopped state.

[0026] FIG. 7 shows a block diagram of a marking device 48 including a spray machine 8. As shown in FIG. 7, the marking device 48 includes a conveyor 2, a length inspection device 50, a sensor 52, and a sensor 54. The sensors 52 and 54 are, for example, optical sensors. The sensors 52 and 54 are not particularly limited as long as they can detect the steel bar 4. In FIG. 7, a controller 22 (interface 22A) included in the spray machine 8 can receive a signal from the length inspection device 50. The controller 22 can receive signals from the sensor 52 and the sensor 54. Furthermore, the controller 22 can communicate with the conveyor 2.

[0027] 8 shows a flowchart of a marking method using the marking device 48. The marking method of the marking device 48 will be described below. Here, the marking method will be described using the length inspection of the steel bar 4 as an example.

[0028] The length inspector 50 inspects whether the length of the steel bar 4 meets the standard. This length inspector 50 detects steel bars 4 that do not meet the length standard, i.e., defective products. When the length inspector 50 detects a defective product, it sends a defect signal to the controller 22. The inspected steel bar 4 is delivered from the length inspector 50 to the conveyor 2. The sensor 52 detects the steel bar 4 delivered to the conveyor 2. The sensor 52 sends a detection signal of the defective steel bar 4 to the controller 22.

[0029] The controller 22 receives the defect signal and the detection signal of the defective steel bar 4. When the controller 22 receives a detection signal of the steel bar 4 without receiving a defect signal, the controller 22 stops the marking operation.

[0030] On the other hand, if the controller 22 receives a failure signal, it moves the spray can 6 from the standby position of FIG. 1 to the spraying position of FIG.

[0031] The sensor 54 detects the steel bar 4 transported by the transport machine 2. The sensor 54 transmits a detection signal of the steel bar 4 to the controller 22. The controller 22 receives the detection signal of the steel bar 4 from the sensor 54.

[0032] The controller 22 starts spraying paint from the spray can 6 at the timing when the steel bar 4 passes the spray position of the spray can 6. In this manner, the spray machine 8 is brought into a use state as shown in FIG.

[0033] The controller 22 stops spraying the paint into the spray can 6 after a predetermined time Ta has elapsed since the paint was sprayed into the spray can 6. In this manner, the defective steel bar 4 is marked with paint.

[0034] In this marking method, the controller 22 determines the timing when the steel bar 4 passes the spray position of the spray can 6. This timing is set based on the transport speed of the steel bar 4 by the transport machine 2, the time when the steel bar 4 is detected by the sensor 54, and the distance from the position where the sensor 54 detects the steel bar 4 to the spray position of the spray can 6. The sensor 54 may also detect the steel bar 4 at the spray position of the spray can 6. In this case, the controller 22 may spray paint onto the spray can 6 when it receives a detection signal from the sensor 54.

[0035] FIG. 9 shows a flow chart of a method for vibrating a spray can 6 using a marking device 48.

[0036] As described above, the sensor 52 detects the steel bar 4 dispensed from the length inspection device 50. The sensor 52 transmits a detection signal of the steel bar 4 to the controller 22 of the sprayer 8.

[0037] The controller 22 activates the vibrator 18 a predetermined time Tb after receiving the detection signal from the sensor 52. The vibrator 18 repeatedly changes between the position shown in Fig. 3 and the position shown in Fig. 5. This causes the spray can 6 to vibrate repeatedly. The controller 22 stops the vibration of the vibrator 18 a predetermined time Tc after the vibrator 18 starts vibrating.

[0038] The predetermined time Tb and the predetermined time Tc are set based on the conveying speed of the conveyor 2 for the steel bar 4, the time when the steel bar 4 is detected by the sensor 52, and the distance from the position where the sensor 52 detects the steel bar 4 to the spraying position of the spray can 6. The predetermined time Tb and the predetermined time Tc are not particularly limited as long as they are set in advance so that the sprayer 8 can spray the steel bar 4 at the timing when the steel bar 4 passes the spraying position of the spray can 6.

[0039] For example, the predetermined time Tb may be 0. That is, the controller 22 may activate the vibrator 18 when receiving a detection signal from the sensor 52. Furthermore, the predetermined times Tb and Tc may be set so as to vibrate the spray can 6 at a timing when the spray position of the spray can 6 is between one steel bar 4 and another steel bar 4 being transported.

[0040] In this vibration method, the controller 22 vibrates the spray can 6 when it receives a detection signal from the sensor 52, regardless of whether or not a defective signal for the steel bar 4 has been received, but the present invention is not limited to this. The controller 22 may vibrate the spray can 6 periodically. The controller 22 may vibrate the spray can 6 when it receives a defective signal for the steel bar 4, and may not vibrate the spray can 6 when it does not receive a defective signal. For example, the controller 22 may vibrate the spray can 6 prior to the spraying of paint when spraying paint into the spray can 6. The controller 22 may vibrate the spray can 6 before and after the spraying of paint when spraying paint into the spray can 6.

[0041] As described above, the spray machine 8 uses the spray can 6. This spray machine 8 has a simple equipment configuration and can spray paint onto the steel bar 4. This spray machine 8 can be easily made small. This spray machine 8 is inexpensive.

[0042] The sprayer 8 includes a vibrator 18 and a controller 22 that activates and stops the vibrator 18. The sprayer 8 vibrates the spray can 6 to agitate the paint in the container 42. This allows the sprayer 8 to spray uniform paint. The controller 22 and the vibrator 18 allow the sprayer 8 to automatically uniform the paint.

[0043] In this spray machine 8, the vibrator 18 repeatedly rotates the spray can 6. The controller 22 causes the vibrator 18 to repeatedly vibrate the spray can 6. This allows the spray machine 8 to further homogenize the paint in the container 42. From this viewpoint, the spray machine 8 preferably repeatedly vibrates the spray can 6 a large number of times.

[0044] Furthermore, the vibration direction of the spray can 6 is not limited to the rotation direction. This vibration direction may be any direction that can agitate the paint in the container 42. On the other hand, from the viewpoint of uniforming the paint, it is preferable that this vibration direction be a direction that changes the positional relationship between the bottom 42A and the head 42B of the container 42 of the spray can 6 in the vertical direction. This allows the components with different specific gravities to be more uniform. From this viewpoint, the rotation as shown in Figs. 3 and 5 is suitable for vibrating the spray can 6.

[0045] The spray can 6 has a spray button 44 that changes the state between a spraying state and a stopped state. Preferably, the spray machine 8 further includes a switch 34 that operates the spray button 44 to change the spray can 6 between a spraying state and a stopped state. The controller 22 changes the spray can 6 between the spraying state and the stopped state by the switch 34. This enables the spray machine 8 to automatically spray uniform paint.

[0046] Preferably, the controller 22 causes the switch 34 to switch the spray can 6 to the spraying state after vibrating the holder 20. This ensures that the sprayer 8 can spray uniform paint.

[0047] In the spray can 6 where spraying is performed infrequently, the paint inside the container 42 is likely to become non-uniform. This spray machine 8 homogenizes the paint in the spray can 6 before spraying the paint. This spray machine 8 is particularly suitable for applications where paint is sprayed infrequently. From this perspective, the spray machine 8 is suitable for marking defective products.

[0048] Preferably, the spray machine 8 further includes a mover 12. The controller 22 causes the mover 12 to move the holder 20 between a spraying position for the spray can 6 and a standby position. The spray machine 8 moves the spray can 6 between a spraying position close to the steel bar 4 and a standby position away from the steel bar 4. This enables the spray machine 8 to easily spray paint onto the steel bar 4. On the other hand, the spray machine 8 can replace the spray can 6 without stopping the production line for the steel bar 4. This spray machine 8 has excellent maintainability.

[0049] This marking device 48 includes a length inspection device 50, a conveyor 2, a sensor 54, and a spray machine 8 that receives a defect signal from the steel bar 4 inspected by the length inspection device 50 and marks the steel bar 4 when it receives a detection signal from the sensor 54. The spray machine 8 includes a vibrator 18 and a controller 22 that operates and stops the vibrator 18. This allows the marking device 48 to perform marking with a uniform paint. By including the spray machine 8, the marking device 48 has the same effect as the spray machine 8.

[0050] Although not shown, the sprayer 8 may be capable of spraying two or more different paints. For example, the sprayer 8 may further include other spray cans, other holders, and other vibrators. The sprayer 8 may be capable of identifying the steel bars 4 by spraying two or more different paints. This may allow identification of the production rods and defective contents of the steel bars 4. As described above, the sprayer 8 homogenizes the paint in the spray can 6 before spraying the paint. The sprayer 8 is suitable for applications in which paint is sprayed infrequently. From this perspective, the sprayer 8 is suitable for applications in which a large number of spray cans are selectively sprayed.

[0051] Here, the moving device 12, the vibrator 18, and the switch 34 are described using air cylinders, but are not limited to air cylinders. The moving device 12, the vibrator 18, and the switch 34 may each be a hydraulic cylinder, an electric motor, or the like.

[0052] Here, the length inspection device 50 for the steel bar 4 has been described as an example, but the present invention is not limited to this. For example, the inspection device may be a flaw detector that detects surface defects and internal defects, or an analysis device that is installed in a production line. For example, the inspection device may be a non-destructive inspection device.

[0053] Here, the description has been given taking paint as an example, but the present invention is not limited to this. The substance to be sprayed may be a lubricant, a cleaning agent, a medicine, or the like.

[0054] Here, the steel bar 4 has been taken as an example of the product to be sprayed, but the product is not limited to this. [Industrial Applicability]

[0055] The sprayer described above can be widely applied to the automation of spraying in various production lines and inspection lines. [Explanation of symbols]

[0056] 6. Spray can 8. Spray machine 12. Movement device 18...Rotator 20 Holder 22. Controller 34...Switch 44....Injection button (button) 48 Marking device 50 ···Length inspection device (inspection machine) 54 Sensor

Claims

1. A holder for attaching a spray can, a vibrator connected to the holder; and, A controller for activating and deactivating the vibrator. A spray machine comprising:

2. The spray can has a button for changing the spray state between a spraying state and a stopped state, The spray can further includes a switch that changes the spray can between the spraying state and the stopped state by operating the button, The sprayer according to claim 1 , wherein the controller changes the spray can between the spraying state and the stopped state by the switch.

3. The controller: causing the vibrator to vibrate the holder; 3. The spray machine according to claim 2, wherein the switch causes the spray can to be in the spraying state after the holder is vibrated.

4. A mover connected to the holder is further provided. The spray machine according to any one of claims 1 to 3, wherein the controller causes the mover to move the holder between a spray position and a standby position for the spray can.

5. Inspection equipment to inspect products, a conveyor for conveying the product inspected by the inspection device; a sensor for detecting the product conveyed by the conveyor; And, A sprayer that receives a defect signal of the product inspected by the inspector and marks the product when it receives a detection signal of the product from the sensor. Including, The spray machine comprises: A holder for attaching a spray can, a vibrator connected to the holder; and, A controller for activating and deactivating the vibrator. A marking device comprising:

Images