Automatic material stirring and sucking mechanism
The system addresses the challenge of handling irregularly shaped surfaces by using extendable vacuum grippers with adjustable pressure and sealing mechanisms, enhancing adaptability and reliability in material handling.
Patent Information
- Application Number
- CN202422283012.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-19
AI Technical Summary
When the vacuum suction cup of the existing feeding robot arm faces a workpiece or non-flat surface workpiece smaller than the suction cup, the suction function fails, resulting in low practicality.
Multiple retractable suction cups are adopted, combined with vacuum pumps, wireless PLCs, check valves and solenoid valves, and stable suction of workpieces with uneven surfaces is achieved. The suction cup fit is improved through springs and limit blocks, and the check valve prevents air from entering, and the solenoid valve restores air pressure.
The adaptability of the feeding device to workpieces with uneven surfaces is improved, and the stability and practicality of absorption are enhanced.
Smart Images

Figure CN223099245U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of material feeding devices, in particular to an automatic material feeding and sucking mechanism. Background Technique
[0002] A material feeding robotic arm is an automated device specifically designed for grasping, moving, and placing materials. This robotic arm is usually equipped with a high-precision gripper and a motion control system, which can accurately perform various material handling tasks. Currently, a material feeding robotic arm with a vacuum suction cup function is commonly used in the automatic material feeding and sucking mechanism of plastic plates.
[0003] Currently, a Chinese patent discloses a material feeding device for a packaging machine (publication number: CN220054300U). Although this patent can play a role in vacuum suction for easy transportation through the cooperation of a vacuum suction cup and a vacuum pump, since this patent only uses a single vacuum suction cup for suction operation, when the workpiece is smaller than the vacuum suction cup or the surface of the workpiece is non-flat, the vacuum suction cup cannot fit the surface of the workpiece at this time, resulting in the failure of the vacuum suction function.
[0004] Therefore, an automatic material feeding and sucking mechanism is proposed to solve the above problems. Content of the Utility Model
[0005] The purpose of the utility model is to provide an automatic material feeding and sucking mechanism to solve the above problems, and improve the problem that the existing material feeding device with a vacuum suction cup function has high requirements for the size and surface flatness of the workpiece and low practicability.
[0006] The utility model realizes the above purpose through the following technical solutions. The automatic material feeding and sucking mechanism includes: a robotic arm; a material feeding and sucking device, and the material feeding and sucking device is fixedly connected to one end of the robotic arm; the material feeding and sucking device includes a mounting plate fixedly connected to one end of the robotic arm, a vacuum pump and a wireless PLC are fixedly connected to the top of the mounting plate, the air inlet end of the vacuum pump is fixedly connected and communicated with a shunt pipe, a high-pressure hose is fixedly connected and communicated with the surface of the shunt pipe, one end of the high-pressure hose is fixedly connected and communicated with a suction cup, a sliding sleeve fixedly connected to the mounting plate is slidably connected to the surface of the suction cup, a guiding port is opened on the surface of the sliding sleeve, and one end of the high-pressure hose penetrates to the outside of the guiding port. The material feeding and sucking device uses multiple telescopic suction cups for automatic negative pressure suction operation, which can enable the material feeding and sucking device to adapt to plastic plates with different volumes and uneven surfaces, effectively reducing the use limitations of the material feeding and sucking device, and thus improving the overall practicability of the automatic material feeding and sucking mechanism.
[0007] Preferably, a spring is arranged between the sliding sleeve and the suction cup. The diameter of the spring is larger than the outside of the guiding port. The spring can increase the pressure between the suction cup and the plastic plate, enabling the suction cup to fit more closely to the plastic plate, thereby improving the sealing performance between the suction cup and the plastic plate.
[0008] Preferably, a limiting block is slidably connected inside the sliding sleeve. The diameter of the limiting block is larger than the opening of the sliding sleeve. The top of the suction cup is fixedly connected to the limiting block, and the bottom of the spring contacts the limiting block. This can prevent the suction cup from completely disengaging from the sliding sleeve to ensure the normal movement of the suction cup.
[0009] Preferably, a one-way valve is fixedly connected and communicated between the high-pressure hose and the shunt pipe. The blocking direction of the one-way valve and the direction from the shunt pipe to the high-pressure hose are the same. When some one-way valves are not closely attached to the plastic plate, after the vacuum pump stops pumping, the one-way valve can prevent the outside air from entering the shunt pipe along the unclosed suction cup and high-pressure hose, thereby ensuring the stable operation of other normally sealed suction cups.
[0010] Preferably, a solenoid valve is fixedly connected and communicated on the surface of the high-pressure hose. The solenoid valve is arranged between the one-way valve and the limiting block. When the solenoid valve is opened, the inside and outside of the high-pressure hose are both communicated, which can quickly restore the air pressure inside the suction cup to normal to ensure the normal separation of the plastic plate from the suction cup.
[0011] Preferably, a sealing ring is fixedly connected to the bottom of the suction cup. The inner diameter of the sealing ring is larger than the inner diameter of the suction cup. This can generate corresponding deformation following the surface of the plastic plate, further improving the sealing performance between the suction cup and the plastic plate.
[0012] Preferably, a dust-proof net is fixedly connected to the inner wall of the suction cup. The bottom of the dust-proof net is flush with the bottom of the suction cup. This can prevent the suction cup from sucking debris, dust and other impurities remaining on the surface of the plastic plate into the inside of the suction cup, thereby reducing the burden of subsequent maintenance.
[0013] The beneficial effects of the present utility model are as follows:
[0014] The suction and feeding device adopts multiple telescopic suction cups for automatic negative pressure suction operation, which enables the suction and feeding device to adapt to plastic plates of different volumes and uneven surfaces, effectively reducing the usage limitations of the suction and feeding device, and thus improving the overall practicality of the automatic feeding and suction mechanism;
[0015] When some one-way valves are not closely attached to the plastic plate, after the vacuum pump stops pumping, the one-way valve can prevent the outside air from entering the shunt pipe along the unclosed suction cup and high-pressure hose, thereby ensuring the stable operation of other normally sealed suction cups. Description of the Drawings
[0016] Figure 1 is a schematic structural view of the present utility model;
[0017] Figure 2 is a schematic structural view of the suction and feeding device in the present utility model;
[0018] Figure 3 is a schematic structural view of a partial section of the suction and feeding device in the present utility model;
[0019] Figure 4 is a schematic sectional view of a partial section of the suction and feeding device in the present utility model.
[0020] In the figure: 1. Robot arm; 2. Suction and feeding device; 201. Mounting plate; 202. Vacuum pump; 203. Wireless PLC; 204. Shunt pipe; 205. High-pressure hose; 206. Suction cup; 207. Sliding sleeve; 2071. Guide port; 208. Spring; 209. Limit block; 210. Check valve; 211. Solenoid valve; 212. Sealing ring; 213. Dust-proof net. Specific embodiments
[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0022] During specific implementation: As Figures 1-4 shown, the automatic feeding and suction mechanism includes: a robot arm 1; a suction and feeding device 2, and the suction and feeding device 2 is fixedly connected to one end of the robot arm 1.
[0023] As Figure 2 、 Figure 3 and Figure 4As shown, the suction and feeding device 2 includes a mounting plate 201 fixedly connected to one end of the robotic arm 1. A vacuum pump 202 and a wireless PLC 203 are fixedly connected to the top of the mounting plate 201. The intake end of the vacuum pump 202 is fixedly connected and communicated with a shunt pipe 204. The surface of the shunt pipe 204 is fixedly connected and communicated with a high-pressure hose 205. One end of the high-pressure hose 205 is fixedly connected and communicated with a suction cup 206. The surface of the suction cup 206 is slidably connected with a sliding sleeve 207 fixedly connected to the mounting plate 201. A guiding port 2071 is formed on the surface of the sliding sleeve 207. One end of the high-pressure hose 205 penetrates to the outside of the guiding port 2071; a spring 208 is arranged between the sliding sleeve 207 and the suction cup 206, and the diameter of the spring 208 is larger than the outside of the guiding port 2071; a limiting block 209 is slidably connected inside the sliding sleeve 207, and the diameter of the limiting block 209 is larger than the opening of the sliding sleeve 207. The top of the suction cup 206 is fixedly connected to the limiting block 209, and the bottom of the spring 208 contacts the limiting block 209; a sealing ring 212 is fixedly connected to the bottom of the suction cup 206, and the inner diameter of the sealing ring 212 is larger than the inner diameter of the suction cup 206; a dust-proof net 213 is fixedly connected to the inner wall of the suction cup 206, and the bottom of the dust-proof net 213 is flush with the bottom of the suction cup 206.
[0024] As Figure 2 , Figure 3 and Figure 4 shown, a one-way valve 210 is fixedly connected and communicated between the high-pressure hose 205 and the shunt pipe 204. The blocking direction of the one-way valve 210 and the direction from the shunt pipe 204 to the high-pressure hose 205 are the same; a solenoid valve 211 is fixedly connected and communicated with the surface of the high-pressure hose 205. The solenoid valve 211 is arranged between the one-way valve 210 and the limiting block 209.
[0025] In this utility model, when it is necessary to perform the operations of pushing and sucking a plastic plate placed obliquely, the wireless PLC 203 first controls the robotic arm 1 to move the sucking and pushing device 2 as a whole to a preset position according to a preset program. During the process of approaching this preset position, one side of the plastic plate squeezes the suction cup 206 into the sliding sleeve 207. When the preset position is reached, the wireless PLC 203 controls the robotic arm 1 to stop and controls the vacuum pump 202 to start according to the preset program. The vacuum pump 202 quickly sucks the air inside the shunt pipe 204, the high-pressure hose 205 and the suction cup 206. At this time, negative pressure is generated inside the suction cup 206 and the plastic plate is firmly adsorbed to the end of the suction cup 206. Then, the wireless PLC 203 controls the robotic arm 1 to move the sucking and pushing device 2 together with the plastic plate along a preset trajectory according to the preset program until the plastic plate is moved to the corresponding position. Then, the wireless PLC 203 controls the robotic arm 1 and the vacuum pump 202 to pause and controls the solenoid valve 211 to open according to the preset program. At this time, the high-pressure hose 205 is connected to the outside, and the outside air quickly rushes into the shunt pipe 204, the high-pressure hose 205 and the suction cup 206. At this time, the air pressure inside the suction cup 206 quickly returns to normal, and the suction cup 206 cannot effectively suck the plastic plate, and the plastic plate then falls to the designated position. Finally, the wireless PLC 203 controls the robotic arm 1 to reset according to the preset program, that is, the automatic pushing and sucking process of one plastic plate is ended. Then, the wireless PLC 203 repeats the above operations according to the preset instructions until the corresponding number of plastic plates are pushed one by one in sequence to the next process;
[0026] In summary, the sucking and pushing device 2 uses multiple and retractable suction cups 206 for automatic negative pressure sucking operations, which enables the sucking and pushing device 2 to adapt to plastic plates of different volumes and uneven surfaces, effectively reducing the usage limitations of the sucking and pushing device 2, and thus improving the overall practicality of the automatic pushing and sucking mechanism.
[0027] It should be noted that in the above description, the robotic arm 1, the vacuum pump 202, the wireless PLC 203, the high-pressure hose 205, the suction cup 206, the one-way valve 210 and the solenoid valve 211 are all devices with relatively mature applications in the prior art. The specific models can be selected according to actual needs. At the same time, the power supply for the robotic arm 1, the vacuum pump 202, the wireless PLC 203 and the solenoid valve 211 can be an internal power supply or a mains power supply. The specific power supply method is selected according to the situation and will not be elaborated here.
[0028] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. The narrative way of this specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. Automatic material feeding and sucking mechanism, characterized in that, Including: A robotic arm (1); A suction and feeding device (2), which is fixedly connected to one end of the robotic arm (1); Among them, the suction and feeding device (2) includes a mounting plate (201) fixedly connected to one end of the robotic arm (1). A vacuum pump (202) and a wireless PLC (203) are fixedly connected to the top of the mounting plate (201). The intake end of the vacuum pump (202) is fixedly connected and communicated with a shunt pipe (204). The surface of the shunt pipe (204) is fixedly connected and communicated with a high-pressure hose (205). One end of the high-pressure hose (205) is fixedly connected and communicated with a suction cup (206). The surface of the suction cup (206) is slidably connected with a sliding sleeve (207) fixedly connected to the mounting plate (201). A guiding port (2071) is formed on the surface of the sliding sleeve (207). One end of the high-pressure hose (205) penetrates to the outside of the guiding port (2071).
2. The automatic feeding and sucking mechanism according to claim 1, wherein: A spring (208) is arranged between the sliding sleeve (207) and the suction cup (206). The diameter of the spring (208) is larger than the outside of the guiding port (2071).
3. The automatic feeding and sucking mechanism according to claim 2, characterized in that: A limiting block (209) is slidably connected inside the sliding sleeve (207). The diameter of the limiting block (209) is larger than the opening of the sliding sleeve (207). The top of the suction cup (206) is fixedly connected to the limiting block (209). The bottom of the spring (208) contacts the limiting block (209).
4. The automatic feeding and sucking mechanism according to claim 3, wherein: A one-way valve (210) is fixedly connected and communicated between the high-pressure hose (205) and the shunt pipe (204). The blocking direction of the one-way valve (210) is the same as the direction from the shunt pipe (204) to the high-pressure hose (205).
5. The automatic feeding and sucking mechanism according to claim 4, wherein: An electromagnetic valve (211) is fixedly connected and communicated with the surface of the high-pressure hose (205). The electromagnetic valve (211) is arranged between the one-way valve (210) and the limiting block (209).
6. The automatic feeding and sucking mechanism according to claim 1, characterized in that: A sealing ring (212) is fixedly connected to the bottom of the suction cup (206). The inner diameter of the sealing ring (212) is larger than the inner diameter of the suction cup (206).
7. The automatic feeding and sucking mechanism according to claim 1, characterized in that: A dust-proof net (213) is fixedly connected to the inner wall of the suction cup (206). The bottom of the dust-proof net (213) is flush with the bottom of the suction cup (206).
Citation Information
Patent Citations
Material shifting device for packaging machine
CN220054300U