TWM642156U - Suction nozzle and conveying device with the same - Google Patents

Abstract

The invention proposes a suction nozzle and a delivery device with the suction nozzle. The delivery device has a platform with a plurality of suction holes on it, and the suction nozzles are respectively arranged in the suction holes. The suction nozzle has a main body, an elastic part and a sealing part, and the main body is sealingly combined with the suction hole. The main body has a passage, which runs through the main body and forms a first opening and a second opening on two opposite surfaces of the main body, and the passage can communicate with the suction hole through the second opening. The elastic sheet surrounds the first opening of the channel and can bend toward the second opening. The sealing element is arranged in the channel and has a gap with the inner wall of the channel. The cross-sectional area of the sealing member is larger than that of the first opening, and when the elastic sheet bends toward the second opening, it can be sealed against the sealing member, thereby blocking the channel so that the airflow cannot circulate and avoid air leakage.

Description

Suction nozzle and conveying device with the same

The invention relates to an air pressure device and accessories for the air pressure device, in particular to a conveying device for carrying objects in a negative pressure manner and its suction nozzle.

In the production line of circuit boards, there is a conveying device that absorbs and conveys boards by suction. The conveying device has a platform with a plurality of suction holes on it, and each suction hole is connected to the flow channel under the platform. When the conveying device transports the substrate, the substrate is placed on the platform, and the conveying device generates a negative pressure in the channel, whereby the substrate is tightly pressed by the atmospheric pressure and attached to the platform, and moves with the conveying device.

Due to the prevailing customization of circuit substrates, the current substrates have various sizes and shapes, so the aforementioned transport device may not be able to cover all the suction holes on the platform when transporting small-sized or unusually shaped substrates. As a result, the flow channel cannot form a negative pressure and thus cannot stably absorb the small-sized substrate. To solve this problem, the conveying device must continue to pump air to the flow channel, but continuous pumping will cause vibration, damage the substrate and reduce yield; or make different suction hole settings for substrates of different sizes or shapes Transportation devices, but now that customized circuit boards are prevalent, it is expensive and not enough to manufacture transportation devices with different suction hole settings.

In view of this, a better solution is an urgent problem to be solved in the industry.

The main purpose of this creation is to propose a suction nozzle and a delivery device with the suction nozzle. The suction nozzle can block the communication state to avoid air leakage after the conveying device sucks air through the suction nozzle to create a low pressure.

In order to achieve the above purpose, this creation proposes a suction nozzle, which is used to be arranged in a suction hole; the suction nozzle has: A body, which can be sealed and combined with the suction hole, the body has: A channel, which runs through the body, and forms a first opening and a second opening on two opposite surfaces of the body, and the channel can communicate with the suction hole through the second opening; an elastic piece surrounding the first opening of the channel, the elastic piece can be bent toward the second opening; and A seal, which is arranged in the passage, and has a gap between the inner wall of the passage; the cross-sectional area of the seal parallel to the first opening is larger than the cross-sectional area of the first opening, and when the elastic The sheet is capable of sealing against the seal when bent towards the second opening.

In addition, in order to achieve the above purpose, this invention also proposes a delivery device, which has: a platform with a plurality of suction holes; and A plurality of suction nozzles, which are respectively arranged in the suction holes; each of the suction nozzles has: A body, which is sealed and combined with one of the suction holes; the body has a passage, which runs through the body, and forms a first opening and a second opening on two opposite surfaces of the body, and the passage is passed through The second opening communicates with the suction hole; an elastic piece surrounding the first opening of the channel, the elastic piece can be bent toward the second opening; and A seal, which is arranged in the passage, and has a gap between the inner wall of the passage; the cross-sectional area of the seal parallel to the first opening is larger than the cross-sectional area of the first opening, and when the elastic The sheet is capable of sealing against the seal when bent towards the second opening.

Therefore, the advantage of the present invention is that, when the conveying device inhales air, the elastic piece can be bent toward the second opening of the channel, and seal against the sealing member, thereby blocking the channel so that the air flow cannot circulate, so as to avoid Air leak. However, when the conveying device with the suction nozzle is carrying an object, even if the object does not touch and cover all the suction nozzles at the same time, it does not need to continuously pump air to maintain the low pressure in the channel, that is, it can be firmly fixed on the conveying device. on the device.

The suction nozzle as mentioned above, wherein the sealing member has a first abutting surface, the first abutting surface faces the elastic piece, and the elastic piece can seal against the first opening when it bends toward the second opening against the surface.

The suction nozzle as mentioned above, wherein the channel forms a blocking surface, the blocking surface faces the first opening; and the sealing member has a second abutting surface facing the second opening; the blocking surface selectively abut against the second abutting surface, thereby preventing the sealing member from breaking away from the channel.

The suction nozzle as described in any one of the preceding items, which further has a carrier, which is sealed and connected to the side of the body where the first opening is located, and surrounds the first opening, and the carrier extends away from the body .

The suction nozzle as mentioned above further has a suction space, the bearing member surrounds the suction space, and the suction space communicates with the first opening; the end of the suction space away from the first opening is the first end, and The end of the adsorption space connected to the first opening is the second end, wherein the inner diameter of the first end is larger than the inner diameter of the second end, and the inner diameter of the second end is not smaller than the inner diameter of the first opening .

As mentioned above, the suction nozzle has a through direction along the line connecting the first opening and the second opening, and has a first direction and a second direction perpendicular to the through direction, and the first direction and the second direction are not parallel to each other; wherein in at least one section perpendicular to the through direction of the channel, the length of the sealing member along the first direction is greater than the length of the inner diameter of the channel along the second direction.

As mentioned above, the suction nozzle further has a connecting portion which surrounds and connects to the main body, and is used for detachably and sealingly connecting to the suction hole.

Please refer to FIG. 1 firstly. This invention proposes a conveying device. The conveying device has a platform A1 with a plurality of suction holes, and the suction nozzles A2 are respectively arranged in the suction holes. There is a flow channel in the platform and it is connected to each suction hole, and the suction of the flow channel can make the airflow flow from each suction nozzle to the flow channel through the suction hole.

Then please refer to FIG. 2 to FIG. 4 and FIG. 7 together. The suction nozzle proposed in this creation has a body 10 , a connecting portion 20 , an elastic piece 30 , a sealing member 40 , and a bearing member 50 . The body 10 is hermetically combined with the suction hole, and the body 10 has a channel 11 . The channel 11 runs through the body 10 , and a first opening 111 and a second opening 112 are formed on two opposite surfaces of the body 10 . When the main body 10 is disposed on the suction hole, the first opening 111 of the passage 11 communicates with the outside world, and the second opening 112 communicates with the suction hole, so the suction hole can communicate with the outside world through the passage 11 . The channel 11 may further have a blocking surface 113 facing the first opening 111 .

The connecting portion 20 surrounds and connects to the main body 10 , and is used for detachably and sealingly connecting to the suction hole. Specifically, when the main body 10 is disposed on the air suction hole, the connecting portion 20 is sealingly engaged with the air suction hole. In addition, in this embodiment, there can also be a fixing component A3, which includes a locking piece and a plurality of screws, and the locking piece is fixed on the surroundings of the connecting portion 20 and the suction hole through the screws at the same time, thereby further preventing the suction nozzle from being connected to the suction hole. Air leakage or displacement occurs between the suction holes, but it is not limited thereto. In other embodiments, the fixing component A3 may not be provided.

The elastic sheet 30 surrounds the first opening 111 of the channel 11 and can be bent toward the second opening 112 , and can be sealed against the sealing member 40 when the elastic sheet 30 is bent toward the second opening 112 . Specifically, the elastic sheet 30 has an outer peripheral edge 31 and an inner peripheral edge 32 , the elastic sheet 30 is fixed to the body 10 through the outer peripheral edge 31 , and the inner peripheral edge 32 surrounds the first opening 111 . The inner peripheral edge 32 can move toward the second opening 112 relative to the outer peripheral edge 31 and abut against the sealing member 40 , so that the elastic piece 30 bends toward the second opening 112 .

Then please refer to FIG. 4 to FIG. 7 . The seal 40 is disposed in the channel 11 , and as shown in FIGS. 5 and 6 , there is a gap between the seal 40 and the inner wall of the channel 11 . The cross-sectional area of the sealing member 40 parallel to the first opening 111 is greater than the cross-sectional area of the first opening 111. Specifically, the sealing member 40 has a first abutting surface 41 and a second abutting surface 42, the first abutting surface The surface 41 faces the elastic piece 30 and the cross-sectional area of the first abutting surface 41 is larger than that of the first opening 111 , so that the elastic piece 30 can be sealed against the first abutting surface 41 when bent toward the second opening 112 . The second abutting surface 42 is located in the direction of the sealing member 40 towards the second opening 112 , and the second abutting surface 42 can abut against the blocking surface 113 in the passage 11 , thereby preventing the sealing member 40 from detaching from the passage 11 .

The channel 11 of the main body 10 has a through direction along the connecting line between the first opening 111 and the second opening 112, and has a first direction D1 and a second direction D2 along the line perpendicular to the through direction, the first direction D1 and the second direction D2. The second directions D2 are not parallel to each other. Wherein, on at least one cross section along the through direction of the vertical passage 11 , the length of the sealing member 40 along the first direction D1 of the cross section is greater than the inner diameter length of the passage 11 along the second direction of the cross section.

As shown in Figure 6, it is one of the sections of the suction nozzle in this embodiment, the first direction D1 and the second direction D2 can be perpendicular to each other, and the sealing member 40 is formed with two protrusions on the opposite sides of the first direction D1. There are two planes on opposite sides in the second direction D2. The shape of the inner space of the channel 11 corresponds to the shape of the sealing member 40, so the two protrusions will be blocked by the inner wall surface of the channel 11, so that the sealing member 40 maintains a fixed direction and does not rotate, but it is not limited thereto; In other embodiments, the length of the sealing member 40 in the section along the first direction D1 may not be greater than the length of the inner diameter of the channel 11 in the section along the second direction D2. In other words, in other embodiments, the seal 40 is rotatable within the channel 11 .

The carrier 50 is sealingly connected to one side of the first opening 111 on the body 10, and surrounds the first opening 111. The carrier 50 extends away from the body 10; the body 10 may further have an adsorption space 51, and the carrier 50 surrounds the adsorption space 51. The adsorption space 51 communicates with the first opening 111 , and the end of the adsorption space 51 away from the first opening 111 is a first end 511 , and the end of the adsorption space 51 communicating with the first opening 111 is a second end 512 . The inner diameter of the first end 511 is larger than the inner diameter of the second end 512 , and the inner diameter of the second end 512 is not smaller than the inner diameter of the first opening 111 . In this way, when the suction nozzle contacts the object carried by the conveying device, a large area of low pressure area is generated, not only the size of the first opening 111, so as to fix the object more firmly; in addition, the second end 512 inside The diameter is not smaller than the inner diameter of the first opening 111, thereby preventing the first opening 111 from leaking air during inhalation. In this embodiment, the inner diameter of the adsorption space 51 is tapered from the first end 511 to the second end 512, but it is not limited thereto. In other embodiments, the inner diameter of the adsorption space 51 may not be tapered. .

Then please refer to FIG. 8 together. When the conveying device of the present invention inhales air, the airflow flows from the adsorption space 51 to the channel 11 of the body 10. At this time, if the carrier 50 is completely covered by the object carried by the conveying device, the adsorption space 51 A low pressure is formed inside, and the low pressure will cause the objects carried by the conveying device to be subjected to atmospheric pressure and lean against the carrier 50; if the carrier 50 is not completely covered, the airflow flowing from the adsorption space 51 to the channel 11 of the body 10 will Pull the elastic piece 30 and bend it toward the second opening 112 . When the elastic sheet 30 bends, the inner peripheral edge 32 abuts against the first abutting surface 41 of the sealing member 40 , and jointly blocks the communication of the channel 11 . At this time, the air between the sealing member 40 and the inner wall of the channel 11 is extracted, so that a low pressure is formed in the channel 11, so that the inner peripheral edge 32 of the elastic sheet 30 is maintained against the sealing member 40, and the flow between the adsorption space 51 and the channel is blocked. The circulation between 11 can achieve the effect of airtightness.

To sum up, in the conveying device of the present invention, when the suction nozzle is not covered by the carried object, it can be automatically closed to avoid air leakage, so as to firmly absorb the object. In addition, the seal 40 of the suction nozzle of the present invention can maintain a fixed direction without rotation in the channel 11 , avoiding unnecessary energy consumption and maintaining stability.

10: Ontology 11: channel 111: first opening 112: second opening 113: blocking surface 20: Connecting part 30: elastic sheet 31: outer periphery 32: inner periphery 40: Seals 41: The first contact surface 42: Second abutment surface 50: Carrier 51: Adsorption space 511: first end 512: second end A1: Platform A2: Nozzle A3: Fixed components D1: the first direction D2: Second direction

Fig. 1 is a partial perspective view of the delivery device of the present invention. Fig. 2 is a three-dimensional schematic view of the suction nozzle of the present invention from a top perspective. Fig. 3 is a three-dimensional schematic view of the suction nozzle of the present invention from the perspective of the bottom side. Fig. 4 is a three-dimensional exploded schematic diagram of the suction nozzle of the invention. Fig. 5 is a schematic bottom view of the suction nozzle of the invention. Fig. 6 is a schematic cross-sectional top view of the suction nozzle of the present invention. Fig. 7 is a side sectional schematic diagram of the suction nozzle of the present invention. Fig. 8 is a side sectional schematic diagram of the suction nozzle of the present invention when the elastic piece is bent against the sealing member.

10: Ontology

11: channel

111: first opening

112: second opening

113: blocking surface

20: Connecting part

30: elastic piece

31: outer periphery

32: inner periphery

40: Seals

41: The first contact surface

42: Second abutment surface

50: Carrier

51: Adsorption space

511: first end

512: second end

Claims (8)

A suction nozzle, which is used to be arranged in a suction hole; the suction nozzle has: A body, which can be sealed and combined with the suction hole, the body has: A channel, which runs through the body, and forms a first opening and a second opening on two opposite surfaces of the body, and the channel can communicate with the suction hole through the second opening; an elastic piece surrounding the first opening of the channel, the elastic piece can be bent toward the second opening; and A seal, which is arranged in the passage, and has a gap between the inner wall of the passage; the cross-sectional area of the seal parallel to the first opening is larger than the cross-sectional area of the first opening, and when the elastic The sheet is capable of sealing against the seal when bent towards the second opening. The suction nozzle according to claim 1, wherein the sealing member has a first abutting surface, the first abutting surface faces the elastic sheet, and the elastic sheet can seal against the second opening when it bends toward the second opening The first abutment surface. The nozzle as described in claim 1, wherein: the channel forms a blocking surface facing the first opening; and The sealing member has a second abutting surface toward the second opening; the blocking surface selectively abuts against the second abutting surface, thereby preventing the sealing member from breaking away from the channel. The suction nozzle according to any one of claims 1 to 3, which further has: A carrier, which is sealingly connected to a surface of the body where the first opening is located, and surrounds the first opening, the carrier extends away from the body. The suction nozzle as described in Claim 4 further has a suction space, the carrier surrounds the suction space, and the suction space communicates with the first opening; the end of the suction space away from the first opening is the first end , and the end of the adsorption space connected to the first opening is the second end, wherein: The inner diameter of the first end is larger than the inner diameter of the second end, and the inner diameter of the second end is not smaller than the inner diameter of the first opening. The suction nozzle according to any one of claims 1 to 3, which has a penetrating direction along the line connecting the first opening and the second opening, and has a first direction and a first direction perpendicular to the penetrating direction. Two directions, and the first direction and the second direction are not parallel to each other; where: On at least one section perpendicular to the through direction of the channel, the length of the sealing member along the first direction is greater than the length of the inner diameter of the channel along the second direction. The suction nozzle according to any one of claims 1 to 3, which further has: A connection part surrounds and connects with the main body, and is used for detachably and sealingly connected with the suction hole. A delivery device having: a platform with a plurality of suction holes; and A plurality of suction nozzles, which are respectively arranged in the suction holes; each of the suction nozzles has: A body, which is sealed and combined with one of the suction holes; the body has a passage, which runs through the body, and forms a first opening and a second opening on two opposite surfaces of the body, and the passage is passed through The second opening communicates with the suction hole; an elastic piece surrounding the first opening of the channel, the elastic piece can be bent toward the second opening; and A seal, which is arranged in the passage, and has a gap between the inner wall of the passage; the cross-sectional area of the seal parallel to the first opening is larger than the cross-sectional area of the first opening, and when the elastic The sheet is capable of sealing against the seal when bent towards the second opening.

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