CN2554138Y

CN2554138Y - Vacuum adsorption device that automatically adjusts the adsorption range

Info

Publication number: CN2554138Y
Application number: CN 02239287
Authority: CN
Inventors: 洪英民
Original assignee: Utechzone Co Ltd
Current assignee: Utechzone Co Ltd
Priority date: 2002-06-15
Filing date: 2002-06-15
Publication date: 2003-06-04
Anticipated expiration: 2012-06-15

Abstract

A vacuum adsorption device capable of automatically adjusting adsorption range is used for adsorbing workpieces which can become thin plates, such as PCB (printed circuit board) and the like, so as to be beneficial to detection or other processing work, and comprises a vacuum suction nozzle platform with a plurality of suction nozzle holes, wherein each reed of a valve plate corresponds to the lower part of each suction nozzle hole, each space of a gap plate is arranged below each reed and corresponds to a through hole of a partition plate respectively, the reeds can automatically switch the communication between the suction nozzle holes and the through holes according to the pressure direction, a vacuum chamber is connected below the through holes, and the vacuum chamber is connected with a vacuum pump and generates adsorption vacuum; when the vacuum exists and no thin plate workpiece exists on the suction nozzle hole, the reed completely moves downwards to close the through hole, and the suction nozzle hole has no effect; when the vacuum exists and the nozzle hole is arranged on the thin plate workpiece, the reed part moves downwards to enable the through hole and the suction nozzle hole to form a passage, the suction nozzle hole acts to suck the thin plate workpiece, therefore, the effective acting number and range of the suction nozzle hole are automatically determined according to the area size of the thin plate workpiece without adjusting an adsorption plate, and the aim of elastic detection or processing can be quickly achieved.

Description

The vacuum absorption device of automatic compensation adsorption range

Technical field

The utility model relates to vacuum absorption device, especially refers to a kind of vacuum absorption device of automatic compensation adsorption range.

Background technology

The adsorption plant Chang Wufa elasticity of commonly using the detection of thin plate workpiece or processing is adjusted the size of adsorption range, too hour must other suction nozzle hole of sealing, otherwise cause vacuum breaking, and can't adsorb, sealing suction nozzle hole must be opened again when changing large scale, very inconvenient.

Summary of the invention

The purpose of this utility model provides a kind of vacuum absorption device of automatic compensation adsorption range, is applicable to the thin plate workpiece of each size, and it is easy to operate, and can improve adsorption efficiency, significantly saves the vacuum energy.

For achieving the above object, the utility model vacuum absorption device comprises the vacuum slot platform, is to offer some suction nozzle holes of running through; Valve block is a straight thin plate, is located at vacuum slot flat-bed below, has some open-works to form some reeds of elastic displacement up and down, and the top system of each reed is each suction nozzle hole of corresponding vacuum slot flat-bed respectively, and each reed system can be for covering the suction nozzle hole; Gap plate is the flat board of a suitable thickness, is the below of being located at valve block, and offers some activity spaces that slotted eye can move down as each corresponding reed of valve block to form some spaces at interval that run through; Dividing plate is a flat board, be located at the below of gap plate and offer some perforation, and the proper correspondence of respectively boring a hole is positioned at the below of each reed of valve block, and can covering for reed; The vacuum base plate is to have a suitable thickness, and its top tool hollow space is to become vacuum chamber with shelf-shaped, but its bottom is provided with a through hole mat vacuum line and is connected with vacuum source in addition.

Description of drawings

Fig. 1 is the three-dimensional sectional schematic diagram of the utility model embodiment.

Fig. 2 is the three-dimensional section exploded drawings of the utility model embodiment.

Fig. 3 is the part unit sectional schematic diagram of the utility model embodiment.

The specific embodiment

As shown in Figure 1-Figure 3, the vacuum absorption device of a kind of automatic compensation adsorption range of the utility model is to include:

Vacuum slot platform 1 is to offer some suction nozzle holes of running through 11;

Valve block 2, being a straight thin plate, is the below of being located at vacuum slot platform 1, has some open-works 20 to form some reeds 21 of elastic displacement up and down, the top system of each reed 21 is each suction nozzle hole 11 of corresponding vacuum slot platform 1 respectively, and each reed 21 can be for covering suction nozzle hole 11;

Gap plate 3 is the flat board of a suitable thickness, is the below of being located at valve block 2, and offers some activity spaces that slotted eye 31 can move down as each corresponding reed 21 of valve block 2 to form some spaces at interval that run through;

Dividing plate 4 is a flat board, be located at the below of gap plate 3 and offer some perforation 41, and the 41 proper correspondences of respectively boring a hole be positioned at valve block 2 each reed 21 the below and can be for the covering of reed 21;

Vacuum base plate 5 is to have a suitable thickness, and its top tool hollow space is and dividing plate 4 forms vacuum chambers 51, but its bottom 52 is provided with a through hole 521 mat vacuum lines 71 and is connected with vacuum source 7 in addition;

Composition by above-mentioned member, please refer to shown in Figure 3, each 11 below, suction nozzle hole of vacuum slot platform 1 form an independently threshold switch, (present embodiment is a pcb board by thin plate workpiece 6 when vacuum base plate 5 is linked to vacuum source 7 and suction nozzle hole 11, but also be applicable to glass, LCD polaroid etc.) when blocking, because suction nozzle hole 11 produces little seepage, the correspondence that reed 21 parts of valve block 2 are displaced downwardly to gap plate 3 runs through in the space of slotted eye 31 makes the suction nozzle hole 11 and the perforation 41 of dividing plate 4 form paths, and then suction nozzle hole 11 adsorbs thin plate workpiece 6; And when suction nozzle hole 11 was clog-free, suction nozzle hole 11 directly was communicated with atmosphere, bore above the reed 21 of valve block 2 and bore vacuum pressure below the barometric pressure, reed 21 is moved down fully, be close to the perforation 41 of dividing plate 4, separating atmospheric is pressed and vacuum, then suction nozzle hole 11 no adsorptions.

Moreover aforesaid valve block 2 is to adopt the elastomeric thin slices of tool such as sheet metal, plastic material thin slice.

Person in addition, aforesaid vacuum slot platform 1 is default internal screw thread hole 13, valve block 2, space bar 3, dividing plate 4 then respectively have knock

hole

23,33,43,53 with vacuum base plate 3, but mat lock member 8 for example screw revolve lock and link.

Be with, the utility model, can conclude and have following enhancement effect:

1. the sheet workpiece 6 of different size dimensions all can be suitable for, when the suction nozzle hole of vacuum slot platform 1 11 can suitably stop up when not being used and being communicated with of atmosphere, can vacuum breaking, guarantee sheet workpiece 6 Be adsorbed.

2. easy to operate, need not adjust adsorbent equipment, increase adsorbent equipment at the bullet that detects or add man-hour The property utilization.

3. reduce producing the spent energy and the noise of vacuum, and the adsorption efficiency raising, the vacuum energy relatively significantly saved.

Claims

1. A vacuum adsorption device for automatically adjusting the adsorption range, characterized in that it includes:

The vacuum nozzle platform is provided with several through nozzle holes;

The valve piece is a flat thin plate, which is set under the vacuum nozzle platform, and has a number of through holes to form a number of reeds that can be elastically displaced up and down. The top of each reed corresponds to the suction nozzles of the vacuum nozzle platform. hole, and each reed system can be used to cover the nozzle hole;

The gap plate is a flat plate of appropriate thickness, which is set under the valve plate, and is provided with a number of through slots to form a number of spaces at intervals, which can be used as the movable space for the corresponding reeds of the valve plate to move down;

The partition plate is a flat plate, which is set under the gap plate and has a number of perforations, and each perforation is exactly located under the reeds of the valve plate, and can be used for the shielding of the reeds;

The vacuum bottom plate has an appropriate thickness, and there is a hollow space above it to form a vacuum chamber with the partition plate. In addition, a through hole is provided at the bottom to connect with a vacuum source through a vacuum pipeline.

2. The vacuum adsorption device for automatically adjusting the adsorption range according to claim 1, characterized in that the opening system can be made of elastic sheets such as metal sheets and plastic sheets.

3. The vacuum adsorption device for automatically adjusting the adsorption range according to claim 1, characterized in that the platform of the vacuum nozzle is a preset internal screw hole, and the valve plate, partition plate, partition plate and vacuum bottom plate each have Positioning holes can be connected by locking elements.