A multi-angle swing structure for woodworking furniture paint spray gun and a spray gun angle control method

Abstract

The present invention discloses a multi-angle swing structure for a woodworking furniture paint spray gun and a spray gun angle control method. The multi-angle swing structure includes a fixing clamp, a three-position cylinder, a cylinder fixed hinge, a central three-position five-way solenoid valve, a swing support rod, a swing rod, a rotary cylinder fixing member, a rotary cylinder, a spray gun connecting plate, and a paint spray gun. The fixing clamp is connected to the cylinder fixed hinge on the side. The cylinder fixed hinge is fixed to the three-position cylinder. The three-position cylinder is connected to the central three-position five-way solenoid valve via an air pipe. The fixing clamp is fixed to the swing support rod at the lower end. The swing support rod is hinged to the swing rod at the upper end. The front end of the swing rod is hinged to the cylinder rod of the three-position cylinder and the rear end is fixed to the rotary cylinder fixing member. The front end of the rotary cylinder body is fixed to the rotary cylinder fixing member. The spray gun connecting plate is fixed to the rotating shaft of the rotary cylinder. The paint spray gun is fixed to the side of the spray gun connecting plate. The present invention has low cost, compact structure, and high work efficiency. It is very suitable for spraying multiple bedside tables at the same time, greatly improving the efficiency of spraying bedside tables.

Description

Technical Field

[0001] The invention belongs to the field of spraying technology and relates to a multi-angle swing structure of a spray gun, in particular to a multi-angle swing structure of a wood furniture paint spray gun and a spray gun angle control method. Background Art

[0002] At present, the known multi-axis robot automatic spraying method uses 5 axes and two paint spray guns with nozzles at 90 degrees to achieve multi-angle spraying of any solid wood furniture. This method has the disadvantages of high cost, low efficiency, and long time consumption, and it is difficult to meet market demand.

[0003] The main problems existing in the existing technology include:

[0004] Paint spray guns typically create an oval-shaped surface, and painters typically apply the paint with the long side of the oval perpendicular to the direction of travel. Years of experience have shown that a cross-pattern of horizontal and vertical spraying creates the most ideal results. However, current multi-axis robotic systems require two spray guns with nozzles at 90-degree angles to achieve this cross-pattern spraying, and can only spray one product at a time. This makes it difficult to improve efficiency and reduce costs. Summary of the Invention

[0005] In response to the above-mentioned problems existing in the prior art, the present invention provides a multi-angle swing structure for a woodworking furniture paint spray gun and a spray gun angle control method. The swing structure has low cost, compact structure, high working efficiency, and can perform multiple groups of collaborative spraying operations. It is very suitable for spraying multiple bedside tables at the same time, improving the spraying efficiency of bedside tables, reducing the production cost of bedside tables, and enhancing corporate competitiveness.

[0006] To this end, the present invention adopts the following technical solutions:

[0007] 1. A multi-angle swing structure for a woodworking furniture paint spray gun, comprising a paint spray gun, a fixing bolt, a spray gun connecting plate, a rotary cylinder, a rotary cylinder fixing part, a swing rod, a gun rotating pin, a swing support rod, a fixing clamp, a cylinder swing pin, a cylinder fixed hinge, a three-position cylinder, a cylinder rod connecting part, a connecting pin, an A air pipe, a B air pipe and a three-position five-way solenoid valve; the side of the fixing clamp is movably connected to the cylinder fixed hinge through the cylinder swing pin; the cylinder fixed hinge is fixed to the three-position cylinder; the three-position cylinder The air inlet and outlet of the cylinder are connected to the three-position five-way solenoid valve through the A air pipe and the B air pipe. The front output rod is fixed with a cylinder rod connecting piece; the cylinder rod connecting piece is movably connected to the swing rod through a connecting pin; the lower end of the fixing clamp is fixed with a swing support rod; the upper end of the swing support rod is hinged with the swing rod through a gun rotating pin, and the rear end of the swing rod is fixed with a rotating cylinder fixing piece; the rotating cylinder is fixed on the rotating cylinder fixing piece; the spray gun connecting plate is fixed on the rotating axis of the rotating cylinder; the paint spray gun is fixed to the side of the spray gun connecting plate with a fixing bolt.

[0008] Preferably, the multi-angle swing structure of the woodworking furniture paint spray gun can only rotate radially at the part connected by the shaft pin or the shaft sleeve.

[0009] Preferably, the three-position cylinder comprises a cylinder body, a piston ring, a spring axial limiter, a small washer A, a large washer A, a large washer B, a small washer B, a screw, a spring limiter rod, a compression spring, a pipe joint B, a pipe joint A and an output rod; the cylinder body is connected to the spring axial limiter; a piston ring is fixed to the middle part of the output rod, and a small washer A, a spring limiter rod, a small washer B and a screw are fixed to the tail in sequence; a large washer A, a spring and a large washer B are installed between the small washer A and the small washer B.

[0010] Preferably, a three-position cylinder is provided, in which the output rod, piston ring, small washer A, spring limit rod, small washer B and screw are fixed as a whole, and their relative positions do not change; the large washer A, spring and large washer B can be compressed and moved between the small washer A and the small washer B by external force; the piston ring is limited to the middle position of the cylinder body by the spring under no air pressure conditions.

[0011] A spray gun angle control method adopts the above-mentioned multi-angle swing structure of the woodworking furniture paint spray gun for control.

[0012] Further, the following steps are included:

[0013] Step 1: The three-position five-way solenoid valve is not energized, and the solenoid valve core stays in the middle position to exhaust the A and B air pipes and eliminate the internal air pressure; the rotary cylinder stays at the 0-degree position, and the paint spray gun nozzle sprays paint longitudinally and horizontally.

[0014] Step 2: The three-position five-way solenoid valve is not energized, and the solenoid valve core stays in the middle position to exhaust the air pipe A and the air pipe B and eliminate the internal air pressure; the rotary cylinder is rotated to 90 degrees, and the paint spray gun nozzle sprays paint horizontally for vertical spraying.

[0015] Step 3: The left coil of the three-position five-way solenoid valve is energized, and the solenoid valve core stays at the right position to allow air to enter pipe A and exhaust air from pipe B; the rotary cylinder is rotated to 90 degrees, the paint spray gun is swung to the right, and the nozzle is sprayed horizontally to spray the convex surface on the right side longitudinally.

[0016] Step 4: The right coil of the three-position five-way solenoid valve is energized, and the solenoid valve core stays in the left position to allow air pipe A to exhaust and air pipe B to intake; the rotary cylinder rotates to 90 degrees, the paint spray gun is swung to the left and the nozzle sprays paint horizontally to spray the left convex surface longitudinally;

[0017] Step 5: After all spraying is completed, return to the position state of step 1.

[0018] Preferably, the above-mentioned multi-angle swing structure of the woodworking furniture paint spray gun can change the angle of the nozzle of the paint spray gun by 90 degrees, and at the same time allow the three angles of the gun body (minus 45 degrees, zero degrees, and positive 45 degrees) to be switched arbitrarily to achieve the purpose of spraying.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The present invention uses a pneumatic woodworking furniture paint spray gun with a multi-angle swing structure to replace the motor shaft to achieve multi-angle painting requirements, simplify the structural design and reduce the control difficulty.

[0021] (2) The multi-angle swing structure of the wood furniture paint spray gun adopted by the present invention can enable multiple groups to spray collaboratively, greatly improving the spraying efficiency.

[0022] (3) The present invention has low cost, compact structure and high working efficiency, and is very suitable for spraying three-dimensional furniture. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view schematic diagram of the structure of a multi-angle swing structure of a woodworking furniture paint spray gun provided by an embodiment of the present invention.

[0024] Figure 2 It is a schematic diagram of the back structure of a multi-angle swing structure of a woodworking furniture paint spray gun provided by an embodiment of the present invention.

[0025] Figure 3 It is a structural schematic diagram of a three-position cylinder provided by an embodiment of the present invention.

[0026] Explanation of the accompanying symbols: 1. Paint spray gun, 2. Fixing bolt, 3. Spray gun connecting plate, 4. Rotating cylinder, 5. Rotating cylinder fixing part, 6. Swing rod, 7. Gun rotating pin, 8. Swing support rod, 9. Fixing clamp, 10. Cylinder swing pin, 11. Cylinder fixed hinge, 12. Three-position cylinder, 13. Cylinder rod connecting part, 14. Connecting pin, 15. Air pipe A, 16. Air pipe B, 17. Center-through three-position five-way solenoid valve; 101. Cylinder body, 102. Piston ring, 103. Spring axial limiter, 104. Small washer A, 105. Large washer A, 106. Large washer B, 107. Small washer B, 108. Screw, 110. Spring limiting rod, 111. Compression spring, 112. Pipe joint B, 113. Pipe joint A, 114. Output rod. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The specific embodiments and descriptions are only used to explain the present invention but are not intended to limit the present invention. Example

[0028] 1. Such as Figure 1 and Figure 2 As shown, the present invention discloses a multi-angle swing structure of a woodworking furniture paint spray gun, including a paint spray gun 1, a fixing bolt 2, a spray gun connecting plate 3, a rotating cylinder 4, a rotating cylinder fixing part 5, a swing rod 6, a gun rotating pin 7, a swing support rod 8, a fixing clamp 9, a cylinder swing pin 10, a cylinder fixed hinge 11, a three-position cylinder 12, a cylinder rod connecting part 13, a connecting pin 14, an A air pipe 15, a B air pipe 16, and a center-through three-position five-way solenoid valve 17.

[0029] 2. Specifically, Figure 3 The three-position cylinder 12 includes a cylinder body 101, a piston ring 102, a spring axial limiter 103, a small washer A104, a large washer A105, a large washer B106, a small washer B107, a screw 108, a spring limit rod 110, a compression spring 111, a pipe joint B112, a pipe joint A11, and an output rod 114.

[0030] 3. Specifically, the connection relationship between the components is as follows:

[0031] The side of the fixing clamp 9 is flexibly connected with a cylinder fixed hinge 11 through a cylinder swing pin 10; the cylinder fixed hinge 11 is fixed to the three-position cylinder 12; the air inlet and outlet of the three-position cylinder 12 are connected to the three-position five-way solenoid valve 17 through the A air pipe 15 and the B air pipe 16, and the front end output rod 114 is fixed with a cylinder rod connecting piece 13; the cylinder rod connecting piece 13 is flexibly connected to the swing rod 6 through the connecting pin 14; the lower end of the fixing clamp 9 is fixed with a swing support rod 8; the upper end of the swing support rod 8 is hinged with the swing rod 6 through the gun rotating pin 7, and the rear end of the swing rod 6 is fixed with a rotating cylinder fixing piece 5; the rotating cylinder 4 is fixed on the rotating cylinder fixing piece 5; the spray gun connecting plate 3 is fixed on the rotating axis of the rotating cylinder 4; the paint spray gun 1 is fixed to the side of the spray gun connecting plate 3 with a fixing bolt 2; the place connected with a shaft pin or a shaft sleeve can only rotate radially.

[0032] The cylinder body 101 is connected to the spring axial limiter 103; a piston ring 102 is fixed to the middle of the output rod 114, and a small washer A104, a spring limiter rod 110, a small washer B107 and a screw 108 are fixed to the tail in sequence; a large washer A105, a spring 111 and a large washer B106 are installed between the small washer A104 and the small washer B107.

[0033] The output rod 114, piston ring 102, small washer A104, spring limit rod 110, small washer B107 and screw 108 are fixed as a whole, and their relative positions do not change; the large washer A105, spring 111 and large washer B106 can be compressed and moved between the small washer A104 and the small washer B107 by external force; the piston ring 102 is limited to the middle position of the cylinder body 101 by the spring 111 under no air pressure conditions.

[0034] The working process of the multi-angle swing structure of the woodworking furniture paint spray gun is as follows:

[0035] In the first step, the three-position five-way solenoid valve 17 is not energized, and the solenoid valve core stays in the middle position to exhaust the air pipe A 15 and the air pipe B 16 so that there is no air pressure inside; the rotary cylinder 4 stays at the 0 degree position, and the nozzle of the paint spray gun 1 sprays paint longitudinally and horizontally.

[0036] In the second step, the three-position five-way solenoid valve 17 is not energized, and the solenoid valve core stays in the middle position to exhaust the air pipe A 15 and the air pipe B 16 and eliminate the internal air pressure; the rotary cylinder 4 rotates to a 90-degree position, and the nozzle of the paint spray gun 1 sprays paint horizontally for longitudinal spraying.

[0037] The third step is to energize the left coil of the three-position five-way solenoid valve 17, and the solenoid valve core stays in the right position to allow air to enter the A pipe 15 and exhaust the B pipe 16; the rotary cylinder 4 rotates to a 90-degree position, and the paint spray gun 1 is swung to the right and the nozzle sprays paint horizontally to spray the right convex surface longitudinally.

[0038] Step 4: The right coil of the three-position five-way solenoid valve 17 is energized, and the solenoid valve core stays in the left position to allow the A air pipe 15 to exhaust and the B air pipe 16 to intake; the rotary cylinder 4 rotates to a 90-degree position, and the paint spray gun 1 is swung to the left and the nozzle sprays paint horizontally to spray the left convex surface longitudinally;

[0039] Finally, after all spraying is completed, return to the position state of step one.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-angle swing structure for a woodworking furniture paint spray gun, characterized by: The invention comprises a paint spray gun (1), a fixing bolt (2), a spray gun connecting plate (3), a rotary cylinder (4), a rotary cylinder fixing part (5), a swing rod (6), a gun rotating pin (7), a swing support rod (8), a fixing clamp (9), a cylinder swing pin (10), a cylinder fixed hinge (11), a three-position cylinder (12), a cylinder rod connecting part (13), a connecting pin (14), an A air pipe (15), a B air pipe (16) and a three-position five-way electromagnetic valve (17); the side of the fixing clamp (9) is movably connected to the cylinder fixed hinge (11) through the cylinder swing pin (10); the cylinder fixed hinge (11) is fixed to the three-position cylinder (1 2) on; the air inlet and outlet of the three-position air cylinder (12) are connected to the three-position five-way electromagnetic valve (17) through the A air pipe (15) and the B air pipe (16); the front output rod (114) is fixed with the cylinder rod connecting piece (13); the cylinder rod connecting piece (13) is connected to the swing rod (6) through the connecting pin (14); the lower end of the fixing clamp (9) is fixed with the swing support rod (8); the upper end of the swing support rod (8) is hinged with the swing rod (6) through the gun rotating pin (7), and the rear end of the swing rod (6) is fixed with the rotating cylinder fixing piece (5); the rotating cylinder (4) is fixed on the rotating cylinder fixing piece (5); the spray gun connecting plate (3) is fixed on the rotating cylinder (4 ) on the rotating shaft; the paint spray gun (1) is fixed to one side of the spray gun connecting plate (3) by a fixing bolt (2); the three-position cylinder (12) includes a cylinder body (101), a piston ring (102), a spring axial limiter (103), a small washer A (104), a large washer A (105), a large washer B (106), a small washer B (107), a screw (108), a spring limiter rod (110), a compression spring (111), a pipe joint B (112), a pipe joint A (113) and an output rod (114); the cylinder body (101) is connected to the spring axial limiter (103); the middle of the output rod (114) is fixed There is a piston ring (102), the tail of which is fixedly connected with a small washer A (104), a spring limiting rod (110), a small washer B (107) and a screw (108); a large washer A (105), a spring (111) and a large washer B (106) are installed between the small washer A (104) and the small washer B (107). The piston ring (102) is limited to the middle position of the cylinder (101) by the spring (111) under no air pressure conditions. This structure allows the nozzle of the paint spray gun to change its angle by 90 degrees, and at the same time allows the nozzle of the paint spray gun to switch arbitrarily between a negative 45-degree angle, a zero-degree angle and a positive 45-degree angle, so as to achieve the purpose of controlling the change of the spray gun angle.

2. The multi-angle swing structure of a wood furniture paint spray gun according to claim 1, characterized in that: The parts connected by shaft pins or shaft sleeves can only rotate radially.

3. The multi-angle swing structure of a woodworking furniture paint spray gun according to claim 1, characterized in that: The output rod (114), piston ring (102), small washer A (104), spring limiting rod (110), small washer B (107) and screw (108) are fixed as a whole, and their relative positions do not change; the large washer A (105), spring (111) and large washer B (106) can be compressed and moved between the small washer A (104) and the small washer B (107) by external force.

4. A spray gun angle control method, characterized in that: The spray gun angle control method adopts a multi-angle swing structure of a wood furniture paint spray gun as described in any one of claims 1-3 to control the angle of the spray gun. Its characteristics include the following steps: Step 1: The three-position five-way solenoid valve (17) is not energized, and the solenoid valve core stays in the middle position to exhaust the air pipe A (15) and the air pipe B (16) so that there is no air pressure inside; the rotating cylinder (4) stays at the 0 degree position, and the nozzle of the paint spray gun (1) sprays paint longitudinally and horizontally. Step 2: The three-position five-way electromagnetic valve (17) is not energized, and the electromagnetic valve core stays in the middle position to exhaust the air pipe A (15) and the air pipe B (16) so that there is no air pressure inside; the rotary cylinder (4) rotates to a 90-degree position, and the nozzle of the paint spray gun (1) sprays paint horizontally for longitudinal spraying. Step 3: The left coil of the three-position five-way solenoid valve (17) is energized, and the solenoid valve core stays in the right position to allow air to enter the A air pipe (15) and exhaust the B air pipe (16); the rotary cylinder (4) is rotated to a 90-degree position, and the paint spray gun (1) is swung to the right and the nozzle is sprayed horizontally to spray the right convex surface longitudinally. Step 4: The right coil of the three-position five-way solenoid valve (17) is energized, and the solenoid valve core stays in the left position to allow the exhaust of the A air pipe (15) and the intake of the B air pipe (16); the rotary cylinder (4) is rotated to a 90-degree position, and the paint spray gun (1) is swung to the left and the nozzle is sprayed horizontally to spray the left convex surface longitudinally. Step 5: After all spraying is completed, return to the position state of step 1.

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