A printing apparatus for a safety helmet

Abstract

The application discloses a printing equipment for safety helmets, which comprises a feeding line, a conveying line and a printing mechanism. The feeding line comprises a bottom frame, positioning rods and a positioning rack. The conveying line comprises an electric track, conveying clamps, cylinder lifting assemblies and a first manipulator. A plurality of conveying clamps are installed on the electric track. The electric track is provided with a feeding station and a discharging station. The cylinder lifting assemblies are installed at the bottom ends of the feeding station and the discharging station. One side of the feeding station is close to the feeding line. The other side of the feeding station is provided with the first manipulator. The end of the first manipulator is provided with a clamping jaw. The printing mechanism is connected between the electric tracks and forms a closed loop. After the safety helmet is clamped to the conveying clamp by the first manipulator, the elastic clamping assembly on the conveying clamp can effectively clamp the safety helmet, so that the safety helmet is prevented from deviating during conveying or printing and affecting the printing effect.

Description

Technical Field

[0001] This invention relates to the field of printing, and in particular to a printing device for safety helmets. Background Technology

[0002] A safety helmet is a hat that protects people's heads from injuries caused by falling objects and other specific factors. It consists of a shell, liner, chin strap, and other accessories. Safety helmets can cushion shock and distribute stress.

[0003] The outer surface of the safety helmet needs to be printed with corresponding markings. Workers place the safety helmet on the printing equipment and remove it after printing. During this process, workers' hands are easily injured, and the safety helmet is prone to shifting, causing the printing position to shift as well. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a printing device for safety helmets.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] This invention discloses a printing device for safety helmets, comprising a feeding line, a transport line, and a printing mechanism. The feeding line includes a base frame, positioning rods, and positioning placement frames. Positioning rods are arranged side-by-side at the top of the base frame, and multiple positioning placement frames are slidably mounted on the top of the positioning rods. A transport line is provided on one side of the feeding line. The transport line includes an electric track, conveying clamps, a cylinder lifting assembly, and a first robotic arm. Multiple conveying clamps are installed on the electric track. The electric track has a feeding station and a unloading station. A cylinder lifting assembly is installed at the bottom of both the feeding station and the unloading station. One side of the feeding station is close to the feeding line, and the other side of the feeding station is provided with a first robotic arm, the end of which is equipped with a gripping claw. The printing mechanism is connected between the electric tracks, forming a closed loop.

[0007] As a preferred embodiment of the present invention, the positioning and placement frame includes a placement base plate, and multiple support shafts are installed at the four corners of the top of the placement base plate. A triangular clamp is installed at the top of the support shaft, and a flat plate is clamped inside the triangular clamp, and the surface of the flat plate has through holes.

[0008] As a preferred embodiment of the present invention, the inner side of the triangular clamp is an arc-shaped structure, and an elastic clamping piece is installed on the inner side of the triangular clamp.

[0009] As a preferred embodiment of the present invention, the conveying fixture includes a conveying base plate, elastic clamping assemblies, a support plate and a pad. The conveying base plate has a groove in the middle of its surface. Elastic clamping assemblies are installed at the four corners of the top of the conveying base plate. A support plate is provided between the elastic clamping assemblies. A pad is provided at the top of the elastic clamping assemblies, and the surface of the pad has through holes.

[0010] As a preferred embodiment of the present invention, the elastic clamping assembly includes an arched bracket, which is fixedly connected to the conveying base plate. A pushing member is hinged inside the arched bracket via a pin, and the pushing member has a Z-shaped structure. Rubber wheels are installed on both sides of the other end of the pushing member. A squeezing rod is sleeved on both sides of the bottom end and the top end of the arched bracket. A pressure adjusting spring is sleeved on one end of the squeezing rod. A side plate is fixedly installed on the other end of the squeezing rod, and there is a gap between the side plate and the conveying base plate. A clamping plate is installed on the top end of the side plate, and a rubber head is installed on the end of the clamping plate.

[0011] As a preferred embodiment of the present invention, the cylinder lifting assembly includes a cylinder and a top plate. The top plate is installed on the top of the cylinder, and T-shaped frames are installed at the four corners of the top of the top plate. Rollers are installed on the sides of the T-shaped frames via pins.

[0012] As a preferred embodiment of the present invention, the printing mechanism includes a conveyor belt and a second robotic arm. The conveyor belt is flush with the electric track. A printing machine is installed at the top of the conveyor belt. A second robotic arm is provided on both sides of the printing machine. A printing module is installed at the end of each of the second robotic arms.

[0013] As a preferred embodiment of the present invention, plasma scanners are installed on both sides of the inlet end of the conveyor belt.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] This invention features multiple positioning racks on the feeding line to accommodate different types of safety helmets. During production, the corresponding positioning rack can be moved along the positioning rod to the initial station, facilitating worker operation. Simultaneously, a first robotic arm picks up the safety helmet and places it onto a conveyor fixture. The elastic clamping components on the conveyor fixture effectively clamp the safety helmet, preventing it from shifting during transport or printing and affecting the printing effect. Furthermore, plasma scanning scans the placement of the safety helmets, and second robotic arms on both sides can adjust accordingly, ensuring the safety helmets are printed in the correct position after entering the printing press. During production, workers only need to handle the loading and unloading of safety helmets at the feeding and unloading stations, preventing hand injuries from the machine and increasing the printing speed. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the positioning and placement frame structure of the present invention;

[0019] Figure 3 This is a top view of the positioning and placement frame of the present invention;

[0020] Figure 4 This is a schematic diagram of the conveying clamp structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the elastic clamp assembly structure of the present invention;

[0022] Figure 6 This is a schematic diagram of the cylinder lifting assembly structure of the present invention;

[0023] Figure 7 This is a schematic diagram of the structure of the cylinder lifting assembly of the present invention when it is located below the conveying fixture;

[0024] Figure 8 yes Figure 7 Top view;

[0025] In the diagram: 1. Feeding line; 2. Conveying line; 3. Printing mechanism; 11. Base frame; 12. Positioning rod; 13. Positioning and placement frame; 21. Electric track; 22. Conveying clamp; 23. Cylinder lifting assembly; 24. First robotic arm; 25. Feeding station; 26. Unloading station; 131. Placement base plate; 132. Support shaft; 133. Triangular clamp; 134. Flat plate; 221. Conveying base plate; 222. Elastic clamp assembly; 2 23. Support plate; 224. Pad plate; 225. Groove; 2221. Arched bracket; 2222. Pushing component; 2223. Extrusion rod; 2224. Pressure adjusting spring; 2225. Side plate; 2226. Clamping plate; 2227. Rubber wheel; 231. Cylinder; 232. Top plate; 233. T-shaped frame; 234. Roller; 31. Conveyor belt; 32. Second robotic arm; 33. Printing machine; 34. Plasma scanner. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0027] Example 1

[0028] like Figure 1-8 As shown, the present invention provides a printing device for safety helmets, including a feeding line 1, a transport line 2, and a printing mechanism 3. The feeding line 1 includes a base frame 11, positioning rods 12, and positioning placement frames 13. Positioning rods 12 are arranged side by side at the top of the base frame 11, and multiple positioning placement frames 13 are slidably installed at the top of the positioning rods 12. The transport line 2 is arranged on one side of the feeding line 1. The transport line 2 includes an electric track 21, a conveying clamp 22, a cylinder lifting assembly 23, and a first robot arm 24. Multiple conveying clamps 22 are installed on the electric track 21. The electric track 21 is provided with a feeding station 25 and a stripping station 26. A cylinder lifting assembly 23 is installed at the bottom of both the feeding station 25 and the stripping station 26. One side of the feeding station 25 is close to the feeding line 1, and the other side of the feeding station 25 is provided with a first robot arm 24, and the end of the first robot arm 24 is equipped with a gripping claw. The printing mechanism 3 is connected between the electric tracks 21 to form a closed loop.

[0029] Furthermore, the positioning and placement frame 13 includes a placement base plate 131, with multiple support shafts 132 installed at the four corners of the top of the placement base plate 131. A triangular clamp 133 is installed at the top of the support shaft 132, and a flat plate 134 is clamped inside the triangular clamp 133. The surface of the flat plate 134 has through holes.

[0030] The inner side of the triangular clamp 133 has an arc-shaped structure, which better fits the shape of the helmet. The inner side of the triangular clamp 133 is equipped with an elastic clip, which can slightly limit the position of the helmet.

[0031] The conveying fixture 22 includes a conveying base plate 221, elastic clamping assemblies 222, a support plate 223, and a pad 224. The conveying base plate 221 has a slot 225 in the middle of its surface. Elastic clamping assemblies 222 are installed at the four corners of the top of the conveying base plate 221. The support plate 223 is arranged between the elastic clamping assemblies 222. The pad 224 is arranged at the top of the elastic clamping assemblies 222, and the surface of the pad 224 has through holes.

[0032] The elastic clamping assembly 222 includes an arched bracket 2221, which is fixedly connected to the conveying base plate 221. A pusher 2222 is hinged inside the arched bracket 2221 via a pin, and the pusher 2222 has a Z-shaped structure. Rubber wheels 2227 are installed on both sides of the other end of the pusher 2222. A squeezing rod 2223 is sleeved on both sides of the bottom end and the top end of the arched bracket 2221. A pressure adjusting spring 2224 is sleeved on one end of the squeezing rod 2223. A side plate 2225 is fixedly installed on the other end of the squeezing rod 2223, and there is a gap between the side plate 2225 and the conveying base plate 221. A clamping plate 2226 is installed on the top end of the side plate 2225, and a rubber head is installed on the end of the clamping plate 2226.

[0033] The cylinder lifting assembly 23 includes a cylinder 231 and a top plate 232. The top plate 232 is installed on the top of the cylinder 231. T-shaped frames 233 are installed at the four corners of the top of the top of the top plate 232. Rollers 234 are installed on the sides of the T-shaped frames 233 via pins.

[0034] The printing mechanism 3 includes a conveyor belt 31 and a second robot arm 32. The conveyor belt 31 is flush with the electric track 21. A printing machine 33 is installed at the top of the conveyor belt 31. A second robot arm 32 is installed on both sides of the printing machine 33. A printing module is installed at the end of each second robot arm 32.

[0035] Plasma scanners 34 are installed on both sides of the inlet end of the conveyor belt 31.

[0036] Specifically, firstly, a matching positioning rack 13 is selected according to the type of safety helmet to be printed. The matching positioning rack 13 is moved along the positioning rod 12 to the loading position and locked. Then, the worker places the safety helmet to be printed on the flat plate 134. The safety helmet is positioned by four triangular clamps 133, and the elastic clips on the inner side of the triangular clamps 133 can apply a slight squeezing force to the edge of the safety helmet. After the safety helmet is placed stably, the conveying clamp 22 on the electric track 21 moves to the loading station 25. After the infrared detection component of the loading station 25 confirms that the conveying clamp 22 has moved to the designated position, the cylinder extends to the conveying clamp. The sides of 22 are squeezed to ensure the accuracy of the position of the conveying fixture 22. At the same time, the cylinder lifting assembly 23 under the loading station 25 is initially in the extended state. The cylinder 231 pushes the top plate 233 upward, and the rollers 234 on the side of the T-shaped frame 233 on the top plate 233 move upward in sync. The rollers 234 push the inner end of the pusher 2222 upward, and the pusher 2222 tilts itself so that its farthest two ends are on the same horizontal line. At this time, the rubber wheel 2227 at the other end of the pusher 2222 expands the side plate 2225 outward, and the spacing of the clamping plates 2226 also expands accordingly. Then, the first robot arm 24 works to clamp... The gripper moves above the flat plate 134, clamping the safety helmet and transferring it to the conveyor fixture 22 at the loading station 25. After the safety helmet is transferred to the pad 224 of the conveyor fixture 22, the lower cylinder 231 retracts, and the top plate 232 retracts accordingly. The roller 234 no longer supports the pusher 2222, and the side plate 2225 moves inward under the return tension of the pressure adjusting spring 2224 at the other end of the pressing rod 2223, thereby causing the clamping plate 2226 at the top to move inward, achieving clamping at the edge of the safety helmet. When the conveyor fixture 22 holding the safety helmet moves to the printing mechanism 3, the conveyor fixture 232... 2. The helmet detaches from the electric track 21 and moves onto the conveyor belt 31. Before entering the printing machine 33, the plasma scanner 34 scans the helmet to confirm its correct posture. After the helmet enters the UV printing machine 33 along with the conveyor belt 31, the printing modules on the second robotic arms 32 on both sides print on both sides of the helmet. After printing, the helmet is transferred from the conveyor belt 31 to the electric track 21 and transported to the unloading station 26. Then, the cylinder lifting assembly 23 below lifts the top plate 232, causing the clamping plate 2226 to release the helmet (the principle is the same as described above, and will not be repeated here). The worker then retrieves the helmet.

[0037] This invention features multiple positioning racks on the feeding line to accommodate different types of safety helmets. During production, the corresponding positioning rack can be moved along the positioning rod to the initial station, facilitating worker operation. Simultaneously, a first robotic arm picks up the safety helmet and places it onto a conveyor fixture. The elastic clamping components on the conveyor fixture effectively clamp the safety helmet, preventing it from shifting during transport or printing and affecting the printing effect. Furthermore, plasma scanning scans the placement of the safety helmets, and second robotic arms on both sides can adjust accordingly, ensuring the safety helmets are printed in the correct position after entering the printing press. During production, workers only need to handle the loading and unloading of safety helmets at the feeding and unloading stations, preventing hand injuries from the machine and increasing the printing speed.

[0038] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A printing apparatus of a safety helmet characterized by comprising: Including the feeding line (1), the transport line (2) and the printing mechanism (3), the feeding line (1) includes the bottom frame (11), the positioning rod (12) and the positioning rack (13), the top of the bottom frame (11) is provided with the positioning rod (12) side by side, a plurality of positioning racks (13) are slidably installed at the top of the positioning rod (12), one side of the feeding line (1) is provided with the transport line (2), the transport line (2) includes the electric track (21), the conveying clamp (22), the cylinder lifting assembly (23) and the first mechanical arm (24), a plurality of conveying clamps (22) are installed on the electric track (21), the electric track (21) is provided with the feeding station (25) and the stripping station (26), the cylinder lifting assembly (23) is installed at the bottom of the feeding station (25) and the stripping station (26), one side of the feeding station (25) is close to the feeding line (1), the other side of the feeding station (25) is provided with the first mechanical arm (24), and the tail end of the first mechanical arm (24) is installed with a clamping jaw, the printing mechanism (3) is connected between the electric track (21) and forms a closed loop; The conveying clamp (22) includes the conveying bottom plate (221), the elastic clamp assembly (222), the supporting plate (223) and the backing plate (224), the surface of the conveying bottom plate (221) is provided with a notch (225), the elastic clamp assembly (222) is installed at the top of the conveying bottom plate (221) at four corners, the supporting plate (223) is arranged between the elastic clamp assemblies (222), and the backing plate (224) is arranged at the top of the elastic clamp assembly (222), and the surface of the backing plate (224) is provided with a through hole; The elastic clamp assembly (222) includes the arched support (2221), the arched support (2221) is fixedly connected with the conveying bottom plate (221), the arched support (2221) is hinged with the pusher (2222) through a pin shaft, the pusher (2222) is Z-shaped, rubber wheels (2227) are installed on the two sides of the other end of the pusher (2222), extrusion rods (2223) are sleeved on the two sides of the bottom end and the top end of the arched support (2221), a pressure adjusting spring (2224) is sleeved on one end of the extrusion rod (2223), a side plate (2225) is fixedly installed on the other end of the extrusion rod (2223), there is a gap between the side plate (2225) and the conveying bottom plate (221), a clamping plate (2226) is installed at the top of the side plate (2225), and a rubber head is installed at the tail end of the clamping plate (2226); The cylinder lifting assembly (23) includes the cylinder (231) and the top plate (232), the top plate (232) is installed at the top of the cylinder (231), T-shaped frames (233) are installed at the four corners of the top plate (232), and rollers (234) are installed on the side edges of the T-shaped frames (233) through pin shafts.

2. The printing apparatus of a safety helmet according to claim 1, wherein The positioning rack (13) comprises a placing bottom plate (131), a plurality of supporting shafts (132) are installed at the top corners of the placing bottom plate (131), a triangular clamping plate (133) is installed at the top of the supporting shaft (132), a flat plate (134) is clamped in the triangular clamping plate (133), and a through hole is formed in the surface of the flat plate (134).

3. A safety hat printing apparatus according to claim 2, wherein, The inner side of the triangular clamping plate (133) is in an arc-shaped structure, and the inner side of the triangular clamping plate (133) is provided with an elastic clamping piece.

4. The printing apparatus of a safety helmet according to claim 1, wherein The printing mechanism (3) comprises a conveying belt (31) and a second mechanical arm (32), the conveying belt (31) is flush with the electric track (21), a printer (33) is installed at the top of the conveying belt (31), the second mechanical arm (32) is arranged on the two sides of the printer (33), and a printing module is installed at the tail end of the second mechanical arm (32).

5. A safety hat printing apparatus according to claim 4, wherein The conveying belt (31) is provided with a plasma scanner (34) on the two sides of the inlet end.

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