Blowback combined suction cup

Abstract

The utility model relates to the technical field of Bernoulli suction cups, in particular to a reverse blowing combined suction cup which comprises a suction cup seat, a main suction cup is arranged on the suction cup seat, a ventilation connecting plate is arranged between the main suction cup and an auxiliary suction cup and divides airflow at an air inlet into the main suction cup and a negative suction cup, and a positive pressure connector reversely blows air into the negative pressure suction cup. Positive pressure at the air inlet holes can be distributed into the main suction cups and the negative suction cups by arranging the ventilation connecting plate, a flow guide air channel is formed in the ventilation connecting plate to conduct flow distribution treatment on air flow to form an adsorption action, and after the adsorption action is completed, air is reversely blown into the negative pressure suction cups through the positive pressure connectors on the two sets of negative pressure suction cups. And back blowing air holes formed in the bottom of the negative-pressure suction cup are matched to conduct back blowing on the workpiece, so that the workpiece can fall off from the suction cup base in time, and the continuity of equipment operation is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of Bernoulli suction cups, in particular to a back-blowing combined suction cup. Background Art

[0002] Bernoulli suction cup is a suction cup that uses compressed air to pass through a small diameter (small hole) to generate a high-speed jet. The high-speed jet takes away the surrounding gas, thereby generating negative pressure to absorb objects. Because of its special principle and stable performance, it is widely used in the field of photovoltaic silicon wafer manufacturing. With the continuous development of the field of photovoltaic silicon wafer manufacturing, the size of silicon wafers is also increasing. Since the workpiece cannot be touched manually during the production process, after some adsorption actions are completed, the workpiece itself is light in weight and is not easy to fall off the suction cup in time, which will affect the subsequent adsorption action of the suction cup. At that time, external force is needed to assist the workpiece to quickly fall off the suction cup. Therefore, a back-blowing combined suction cup is needed. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a reverse-blowing combined suction cup, which is used to solve the problem of adsorbing workpieces on the suction cup quickly falling off in the prior art.

[0004] To achieve the above objectives and other related objectives, the present invention provides the following technical solutions:

[0005] A back-blowing combined suction cup comprises a suction cup seat, wherein a main suction cup is arranged on the suction cup seat, and two groups of auxiliary suction cups are symmetrically arranged on both sides of the suction cup, a ventilation connecting plate is arranged between the main suction cup and the auxiliary suction cup, the ventilation connecting plate is provided with an air inlet hole connected to positive pressure, the ventilation connecting plate diverts the airflow at the air inlet hole to the main suction cup and the auxiliary suction cup, the two groups of auxiliary suction cups are provided with positive pressure joints, the positive pressure joints back-blow air into the auxiliary suction cups, back-blowing holes are arranged at the bottom of the auxiliary suction cups, the back-blowing holes are connected to the positive pressure joints, and a sealing cover plate is provided on the ventilation connecting plate.

[0006] To implement the above technical scheme, a ventilation connecting plate is provided to divert the positive pressure at the air inlet to the main suction cup and the auxiliary suction cup. A guide air duct is provided in the ventilation connecting plate to divert the airflow to form an adsorption action. After the adsorption action is completed, the positive pressure joints on the two groups of auxiliary suction cups are used to back-blow air into the auxiliary suction cup, and the back-blow air holes provided at the bottom of the auxiliary suction cup are used to back-blow the workpiece, so that the workpiece can fall off the suction cup seat in time, thereby ensuring the continuity of the equipment operation.

[0007] In one embodiment of the present invention, an independent back-blowing air duct is provided in the positive-pressure joint between the back-blowing air holes.

[0008] To implement the above technical solution, an independent back-blowing air duct is provided to ensure that during back-blowing, the airflow will not back-blow from the ventilation connecting plate into the main suction cup, thereby ensuring the stability of the back-blowing airflow in back-blowing the workpiece.

[0009] In one embodiment of the present invention, a flow distribution core connected to the air inlet is provided in the main suction cup, and a plurality of flow outlets are circumferentially provided on the flow distribution core.

[0010] To implement the above technical solution, the airflow in the main suction cup can be evenly dispersed around the main suction cup by setting a diverter disc core, thereby ensuring the uniformity of the adsorption force at the main suction cup and better adsorbing the workpiece.

[0011] In one embodiment of the present invention, an air outlet channel is arranged at the center of the auxiliary suction cup, and the air outlet channel discharges the airflow released by the positive pressure joint. A positive pressure channel is opened in the side wall of the auxiliary suction cup, and the positive pressure channel extends to the bottom of the auxiliary suction cup and is connected to the bottom of the air outlet channel.

[0012] To implement the above technical solution, an air outlet channel is set at the center of the auxiliary suction cup, which can facilitate the discharge of the airflow released by the positive pressure joint to avoid the exhaust airflow affecting the adsorption working surface. The positive pressure channel extends to the bottom of the auxiliary suction cup and is connected to the bottom of the air outlet channel, which can improve the reliability of the positive pressure airflow on the workpiece adsorption.

[0013] In one embodiment of the present invention, a trumpet-shaped air guide head converging inward is provided at the bottom of the air outlet channel, and the trumpet-shaped opening end of the air guide head is arranged downward.

[0014] To implement the above technical solution, by providing a trumpet-shaped air guide head, the Coanda effect of air flow can be utilized so that the air flow can be discharged smoothly from the air outlet channel.

[0015] In one embodiment of the present invention, a buffer pad is provided at the bottom of the suction cup seat.

[0016] The above technical solution is implemented, and the cushion pad is used to protect the adsorption product from damage.

[0017] In one embodiment of the present invention, an air intake bracket is provided on the upper side of the ventilation connecting plate, and an air intake port communicating with the air intake hole is provided on the air intake bracket.

[0018] To implement the above technical solution, the setting of the air intake bracket can facilitate the connection to the air intake source, and the air intake bracket can be installed on the robot arm, thereby improving the convenience of using the suction cup.

[0019] As described above, a back-blowing air combination suction cup of the present invention has the following beneficial effects: by setting a ventilation connecting plate, the positive pressure at the air inlet can be diverted to the main suction cup and the auxiliary suction cup, and a guide air duct is provided in the ventilation connecting plate to divert the airflow for processing, thereby forming an adsorption action. After the adsorption action is completed, the positive pressure joints on the two groups of auxiliary suction cups are used to back-blow air into the auxiliary suction cup, and the back-blowing air holes set at the bottom of the auxiliary suction cup are used to back-blow the workpiece, so that the workpiece can fall off the suction cup seat in time, thereby ensuring the continuity of the equipment operation; by setting an independent back-blowing air duct, it can be ensured that during the back-blowing process, the airflow will not be back-blown from the ventilation connecting plate to the main suction cup, thereby ensuring the stability of the back-blowing airflow in blowing the workpiece back. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shown is a schematic structural diagram of a back-blowing combined suction cup disclosed in an embodiment of the present invention.

[0021] Figure 2 Shown is a schematic diagram of the positive pressure joint structure of the back-blowing combined suction cup disclosed in an embodiment of the present invention.

[0022] Figure 3 Shown is a schematic diagram of the wind guide head structure of the reverse air blowing combined suction cup disclosed in an embodiment of the present invention.

[0023] Figure 4 Shown is a schematic diagram of the back-blowing air hole structure of the back-blowing combined suction cup disclosed in an embodiment of the present invention.

[0024] Component number description

[0025] 1. Suction cup seat; 2. Main suction cup; 3. Auxiliary suction cup; 4. Ventilation connecting plate; 5. Air inlet hole; 6. Back-blowing air hole; 7. Sealing cover plate; 8. Back-blowing air duct; 9. Diverter core; 10. Air outlet channel; 11. Air guide head; 12. Buffer pad; 13. Air inlet bracket; 14. Air inlet port; 15. Positive pressure connector. DETAILED DESCRIPTION

[0026] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0027] See also Figures 1 to 4The present invention provides a back-blowing combined suction cup, comprising a suction cup seat 1, a main suction cup 2 is arranged on the suction cup seat 1, two groups of auxiliary suction cups 3 are symmetrically arranged on both sides of the suction cup, a ventilation connecting plate 4 is arranged between the main suction cup 2 and the auxiliary suction cups, an air inlet 5 connected to positive pressure is arranged on the ventilation connecting plate 4, the air flow at the air inlet 5 is diverted by the ventilation connecting plate 4 to the main suction cup 2 and the auxiliary suction cup 3, positive pressure joints 15 are arranged on the two groups of auxiliary suction cups, the positive pressure joints 15 back-blow air into the auxiliary suction cups, a back-blowing air hole 6 is arranged at the bottom of the auxiliary suction cup, the back-blowing air hole 6 is connected to the positive pressure joint 15, and a sealing cover plate 7 is arranged on the ventilation connecting plate 4.

[0028] By setting up the ventilation connecting plate 4, the positive pressure at the air inlet 5 can be diverted to the main suction cup 2 and the auxiliary suction cup 3. The ventilation connecting plate 4 is provided with a guide air duct to divert the airflow to form an adsorption action. After the adsorption action is completed, the positive pressure joints 15 on the two groups of auxiliary suction cups are used to blow back air into the auxiliary suction cup, and the back-blowing air holes 6 set at the bottom of the auxiliary suction cup are used to back-blow the workpiece, so that the workpiece can fall off the suction cup seat 1 in time, thereby ensuring the continuity of the equipment operation.

[0029] An independent back-blowing air duct 8 is provided between the positive pressure joint 15 and the back-blowing air hole 6. By providing the independent back-blowing air duct 8, it can be ensured that during the back-blowing process, the airflow will not be back-blown from the ventilation connecting plate 4 to the main suction cup 2, thereby ensuring the stability of the back-blowing airflow in blowing the workpiece off. A diverter core 9 connected to the air inlet hole 5 is provided in the main suction cup 2, and a plurality of groups of diverter ports are circumferentially provided on the diverter core 9. By providing the diverter core 9, the airflow in the main suction cup 2 can be evenly dispersed around the main suction cup 2, thereby ensuring the uniformity of the adsorption force at the main suction cup 2 and better adsorbing the workpiece.

[0030] An air outlet channel 10 is arranged at the center of the auxiliary suction cup, and the air outlet channel 10 discharges the airflow released by the positive pressure joint 15. A positive pressure channel is opened in the side wall of the auxiliary suction cup, and the positive pressure channel extends to the bottom of the auxiliary suction cup and is connected to the bottom of the air outlet channel 10. By arranging the air outlet channel 10 at the center of the auxiliary suction cup, the airflow released by the positive pressure joint 15 can be conveniently discharged, and the discharged airflow can be prevented from affecting the adsorption working surface. The positive pressure channel extends to the bottom of the auxiliary suction cup and is connected to the bottom of the air outlet channel 10, which can improve the reliability of the positive pressure airflow on the adsorption of the workpiece.

[0031] A trumpet-shaped air guide head 11 that converges inward is provided at the bottom of the air outlet channel 10, and the trumpet-shaped opening end of the air guide head 11 is set downward. By setting the trumpet-shaped air guide head 11, the Coanda effect of air flow can be utilized to enable the air flow to be smoothly discharged from the air outlet channel 10. A buffer pad 12 is provided at the bottom of the suction cup seat 1 to protect the adsorbed product from damage.

[0032] An air intake bracket 13 is provided on the upper side of the ventilation connecting plate 4, and an air intake port 14 connected to the air intake hole 5 is provided on the air intake bracket 13. The setting of the air intake bracket 13 can facilitate the connection of the air intake source, and the air intake bracket 13 can be installed on the robot arm, thereby improving the convenience of using the suction cup.

[0033] The present invention can divert the positive pressure at the air inlet to the main suction cup and the auxiliary suction cup by arranging a ventilation connecting plate. A guide air duct is provided in the ventilation connecting plate to divert the airflow for processing, so as to form an adsorption action. After the adsorption action is completed, the positive pressure joints on the two groups of auxiliary suction cups are used to blow air back into the auxiliary suction cup, and the back-blowing air holes arranged at the bottom of the auxiliary suction cup are used to back-blow the workpiece, so that the workpiece can fall off the suction cup seat in time, thereby ensuring the continuity of the equipment operation. By arranging an independent back-blowing air duct, it can be ensured that during the back-blowing process, the airflow will not be blown back from the ventilation connecting plate to the main suction cup, thereby ensuring the stability of the back-blowing airflow in blowing the workpiece back.

[0034] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A reverse air combined suction cup, characterized in that: It includes a suction cup seat, on which a main suction cup is provided, and two groups of auxiliary suction cups are symmetrically arranged on both sides of the main suction cup, a ventilation connecting plate is provided between the main suction cup and the auxiliary suction cup, the ventilation connecting plate is provided with an air inlet hole connected to positive pressure, the ventilation connecting plate diverts the airflow at the air inlet hole to the main suction cup and the auxiliary suction cup, the two groups of auxiliary suction cups are provided with positive pressure joints, the positive pressure joints back-blow air into the auxiliary suction cups, back-blow air holes are provided at the bottom of the auxiliary suction cups, the back-blow air holes are connected to the positive pressure joints, and a sealing cover plate is provided on the ventilation connecting plate.

2. The reverse air blowing combined suction cup according to claim 1, characterized in that: An independent back-blowing air duct is arranged between the back-blowing air holes in the positive-pressure joint.

3. The reverse air blowing combined suction cup according to claim 1, characterized in that: The main suction cup is provided with a flow distribution disc core connected to the air inlet, and the flow distribution disc core is provided with multiple groups of flow outlets in the circumferential direction.

4. The reverse air blowing combined suction cup according to claim 1, characterized in that: An air outlet channel is arranged at the center of the auxiliary suction cup, and the air outlet channel discharges the airflow released by the positive pressure joint. A positive pressure channel is opened in the side wall of the auxiliary suction cup, and the positive pressure channel extends to the bottom of the auxiliary suction cup and is connected to the bottom of the air outlet channel.

5. The reverse air blowing combined suction cup according to claim 4, characterized in that: A trumpet-shaped air guide head converging inwards is provided at the bottom of the air outlet channel, and the trumpet-shaped opening end of the air guide head is arranged downwards.

6. The reverse air blowing combined suction cup according to claim 1, characterized in that: A buffer pad is provided at the bottom of the suction cup seat.

7. The reverse air blowing combined suction cup according to claim 1, characterized in that: An air intake bracket is provided on the upper side of the ventilation connecting plate, and an air intake port connected to the air intake hole is provided on the air intake bracket.

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