CN220787305U - Material taking machine and material transporting equipment - Google Patents

Abstract

The utility model discloses a reclaimer and material transportation equipment, and relates to the technical field of reclaiming equipment, wherein the reclaimer comprises: the material taking assembly is used for picking up the workpiece; the air knife structure is arranged on one side of the material taking assembly and is provided with an air storage cavity, an air inlet and an air supply outlet, wherein the air inlet and the air supply outlet are communicated with the air storage cavity, a slope structure is arranged between the air supply outlet and the air storage cavity, the air storage cavity points to the direction of the air supply outlet, and the cross section area of a channel formed at the slope structure is gradually reduced. The air knife structure arranged on one side of the material taking assembly can blow the workpiece when the material taking assembly picks up the workpiece, and the workpiece which is not directly adsorbed by the material taking assembly is separated, so that the condition that the material taking assembly picks up a plurality of workpieces simultaneously is reduced, and the material taking assembly is facilitated to pick up only one workpiece each time.

Description

Material taking machine and material transporting equipment

Technical Field

The utility model relates to the technical field of material taking equipment, in particular to a material taking machine and material conveying equipment.

Background

In the prior art, when the vacuum chuck of the reclaimer sucks silicon wafers, a plurality of silicon wafers are easily sucked at the same time. In this case, the air knife may be used to blow the silicon wafer to separate the silicon wafer, so that the silicon wafer not directly adsorbed by the vacuum chuck is separated from the directly adsorbed silicon wafer. However, most air knives are used for directly discharging air, the directly discharged air can be blocked by the air nozzle clamping plates and partially rebounded when the air is discharged, and the collision between the directly discharged air and the discharged air is more when the wind rebounded, so that the wind force is reduced.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the reclaimer and the material transportation equipment, and the slope structure is arranged between the air supply outlet and the air storage cavity, so that the condition that air flow is blocked is reduced, the wind power can be effectively increased, and the silicon wafer separation effect is ensured.

An embodiment of an aspect of the present application discloses a reclaimer, including:

the material taking assembly is used for picking up the workpiece;

the air knife structure is arranged on one side of the material taking assembly, the air knife structure is provided with an air storage cavity, an air inlet and an air supply outlet, the air inlet and the air supply outlet are communicated with the air storage cavity, a slope structure is arranged between the air supply outlet and the air storage cavity, the air storage cavity points to the direction of the air supply outlet, and the cross section area of a channel formed at the slope structure is gradually reduced. The slope structure can guide the air flow in the air storage cavity; the cross-sectional area of the channel formed at the slope structure is gradually reduced, so that the pressure of the air flow flowing from the air storage cavity to the air supply opening is gradually increased, the air supply pressure and the air supply intensity of the air supply opening are improved, and the capability of separating workpieces of the air knife structure is improved.

Further, the air knife structure comprises a first component and a second component which are arranged in a stacked mode, the first component is provided with an air storage groove and an air supply groove, a slope structure is arranged between the air storage groove and the air supply groove, the slope structure and the air supply groove are in a ladder shape, the second component is close to the end face of the air storage groove and the air storage groove to define an air storage cavity, and the second component is close to the end face of the air supply groove and the air supply groove to define an air supply opening. The air storage cavity and the air supply opening of the air knife structure are defined by the first component and the second component, and the air storage groove, the air supply groove and the slope structure are machined on one end face of the first component, so that the air knife structure machining process is simplified, and the machining difficulty is reduced; simultaneously, the air storage groove, the air supply groove and the slope structure are obtained by processing one of the end faces of the first component, so that the processing precision of the air storage groove, the slope structure and the air supply groove is guaranteed, and the actual air supply effect of the air knife structure is guaranteed.

Further, the depth of the air supply groove is 0.1mm. Therefore, the air supply pressure and the air supply intensity of the air supply opening are guaranteed, and the air knife structure is beneficial to guaranteeing the capability of separating the workpiece which is not directly picked up by the material taking assembly from the workpiece which is directly contacted with the material taking assembly.

Further, the air knife structure further comprises a first bracket, and the first component and the second component are mounted on the first bracket.

Further, the second component is provided with an adjusting groove extending along a first direction, a fastening hole is formed in the position, corresponding to the adjusting groove, of the first support, and the second component is fixed to the first support through the fastening piece and the fastening hole in a penetrating mode. Therefore, the position of the air supply outlet in the first direction can be conveniently changed, and the relative distance between the air supply outlet and the workpiece is changed.

Further, the air knife structure further comprises a sliding plate, the sliding plate is provided with a first sliding groove extending along the second direction, and the first bracket is provided with a first sliding block in matched connection with the first sliding groove. Therefore, the first bracket can be conveniently moved along the second direction, so that the relative position of the air supply outlet in the second direction can be changed.

Further, the air knife structure further comprises a second support, the second support is provided with a second sliding groove extending along a third direction, and the sliding plate is provided with a second sliding block in sliding connection with the second sliding groove. Therefore, the relative position of the second bracket in the third direction can be conveniently changed, and the position of the air supply outlet in the third direction is changed.

Further, the air knife structure further comprises an correlation sensor, wherein the correlation sensor is used for detecting the position of the workpiece so as to control the air knife structure to blow. Therefore, the air knife structure can be controlled to blow when the material taking assembly takes materials, and the air blowing is stopped in a non-material taking period, so that the pressure of the gas in the gas storage cavity is increased, and the gas in the gas storage cavity is saved.

Further, the material taking assembly comprises a sucker, and the sucker is used for sucking the workpiece.

The material conveying equipment of the embodiment of the other aspect of the application comprises the material taking machine, a conveying module and a material box, wherein the material taking machine transfers the workpiece between the conveying module and the material box.

The reclaimer and the material conveying equipment have the following beneficial effects: the air knife structure arranged on one side of the material taking assembly can blow the workpiece picked up by the material taking assembly, and the workpiece which is directly adsorbed by the material taking assembly is separated. The slope structure can provide guidance for the air in the air storage cavity when flowing to the air supply outlet, is favorable for reducing the condition that the air flow is blocked or the air flow rebounds, and therefore the wind power can be effectively increased. Therefore, the condition that the material taking assembly picks up a plurality of workpieces simultaneously is facilitated to be reduced, and accordingly the material taking assembly is guaranteed to pick up only one workpiece at a time.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of a material handling apparatus according to an embodiment of an aspect of the present utility model;

FIG. 2 is a schematic view of a reclaimer machine in accordance with another aspect of the present utility model;

FIG. 3 is a schematic diagram of the explosive structure of FIG. 2;

fig. 4 is a schematic view of one of the first components of the reclaimer machine according to another embodiment of the present utility model.

Reference numerals:

100. a material taking assembly;

200. an air knife structure; 210. a first component; 211. a gas storage tank; 212. an air inlet; 213. an air supply groove; 214. a ramp structure; 220. a second component; 221. a first slider; 222. an adjustment groove; 230. a first bracket; 240. a slide plate; 241. a first chute; 250. a second bracket; 251. a second chute; 260. an air inlet port; 270. a third bracket;

300. a magazine;

400. and a transportation module.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

In the description of the present utility model, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

An embodiment of an aspect of the present application discloses a material transporting apparatus including a reclaimer, a transporting module 400 and a material box 300, the reclaimer transferring a work piece between the transporting module 400 and the material box 300. Wherein, the material box 300 is provided with a plurality of silicon wafers which are stacked, the transportation module 400 is used for transporting the silicon wafers, and the material taking machine is used for transferring the silicon wafers between the transportation module 400 and the material box 300.

It should be appreciated that the material handling apparatus can be used for wafer loading operations, i.e., transferring wafers from the cassette 300 to the transport module 400; the device can also be used for the blanking work of the silicon wafer, namely, the silicon wafer is transferred from the transportation module 400 to the material box 300.

In another aspect of the present application, a reclaimer machine is disclosed, referring to fig. 1-4, that includes a reclaimer assembly 100 and an air knife structure 200.

Specifically, the take out assembly 100 is used to pick up one workpiece at a time to transfer the workpiece between the magazine 300 and the transport module. The air knife structure 200 is disposed on one side of the material taking assembly 100, and the air knife structure 200 can blow air to the workpiece picked up by the material taking assembly 100, so as to help reduce the situation that two or more workpieces are picked up by the material taking assembly 100 at the same time. The air knife structure 200 is provided with an air storage cavity, an air inlet 212 and an air supply outlet, wherein the air inlet 212 and the air supply outlet are communicated with the air storage cavity, the air storage cavity points to the direction of the air supply outlet, and the cross section area of a channel formed at the slope structure 214 is gradually reduced. The slope structure 214 can guide the air flow in the air storage cavity; the cross-sectional area of the channel formed at the slope structure 214 gradually decreases, so that the pressure of the air flow flowing from the air storage cavity to the air supply port gradually increases, which is beneficial to improving the air supply pressure and air supply strength of the air supply port and improving the capability of the air knife structure for separating workpieces.

In this embodiment, the air inlet 212 is connected to an air inlet port 260, and an external device sends air into the air storage chamber through the air inlet port 260, then flows through the ramp structure 214, and finally blows from the air outlet to the workpiece picked up by the material picking assembly 100.

It should be noted that the air supply port is provided toward the side of the material taking assembly 100 such that air that can be blown out from the air supply port can be blown onto the workpiece picked up by the material taking assembly 100 to separate the workpiece that is not in direct contact with the material taking assembly 100 from the workpiece directly picked up by the material taking assembly 100.

The reclaimer and the material conveying equipment have the following beneficial effects: the air knife structure 200 arranged on one side of the material taking assembly 100 can blow air to the workpiece picked up by the material taking assembly 100, and separate the workpiece which is directly adsorbed by the material taking assembly 100. The ramp structure 214 is capable of providing a guide for the gas in the gas storage chamber as it flows to the supply port; the cross-sectional area of the channel formed at the ramp structure 214 gradually decreases, rather than being perpendicular to the air outlet from the cavity wall of the air storage cavity, to facilitate reducing the situation that the air flow is blocked or the air flow rebounds, thereby effectively increasing the wind force. Thus, it is advantageous to reduce the number of instances in which the take out assembly 100 picks up multiple workpieces at the same time, thereby ensuring that the take out assembly picks up only one workpiece at a time.

In some embodiments of the present application, referring to fig. 1, the take out assembly 100 includes a suction cup for sucking up a workpiece. The workpiece can be a silicon wafer, and the sucker is a vacuum sucker. In this embodiment, the workpiece is a silicon wafer.

As one embodiment, referring to fig. 1, a plurality of silicon wafers are stacked in a cassette 300, and a suction cup can suck the silicon wafers in the cassette 300 to transfer the silicon wafers from the cassette 300 to a transport module 400. During the process of picking up a silicon wafer from the cassette 300 by the suction cup, the suction cup contacts and picks up the silicon wafer located uppermost in the cassette 300. In this process, the air knife structure 200 located at one side of the material taking assembly 100 can blow the silicon wafer in the suction cup, so that the silicon wafer contacted by the suction cup is separated from the silicon wafer picked up by the suction cup, and the suction cup can be effectively prevented from adsorbing more than one silicon wafer at a time.

When the air supply outlet is directly communicated with the air storage cavity, air flow in the air storage cavity directly flows to the air supply outlet, and the air outlet air flow is direct air outlet. However, the passage from the air storage chamber to the air supply port is rapidly reduced. At this time, most of the straight air outlet is blocked by the cavity wall of the air storage cavity, the straight air outlet bounces back after striking the cavity wall of the air storage cavity, and the air flow after rebound collides with the air flow flowing to the air supply outlet, so that the wind power of the air outlet is reduced.

In some embodiments of the present application, referring to fig. 2 to 4, the air knife structure 200 includes a first component 210 and a second component 220 that are stacked, where the first component 210 has an air storage slot 211 and an air supply slot 213, a slope structure 214 is disposed between the air storage slot 211 and the air supply slot 213, the slope structure 214 and the air supply slot 213 are in a step shape, an end surface of the second component 220, which is close to the air storage slot 211, and the air storage slot 211 define an air storage cavity, and an end surface of the second component 220, which is close to the air supply slot 213, and the air supply slot 213 define an air outlet. It should be noted that the slope structure 214 is a slope having an inclined arrangement and connected between the air storage groove 211 and the air supply groove 213. The slope structure 214 and the air supply groove 213 are in a step shape, that is, the slope of the slope structure 214 and the bottom surface of the air supply groove 213 are in a step shape. In this manner, ramp structure 214 is capable of directing the flow of gas within the gas storage chamber. When the air flows from the air storage cavity to the air supply outlet and flows out of the air supply outlet, the air flows on the slope structure 214 to form inclined air outlet, so that collision between air flows of the air outlet is reduced, and more air flows out of gaps between the first component 210 and the second component 220, thereby being beneficial to improving air supply and wind power of the air supply outlet.

The air storage cavity and the air supply opening of the air knife structure are defined by the first component and the second component, and the air storage groove 211, the air supply groove 213 and the slope structure 214 are formed in one end face of the first component, so that the air knife structure is facilitated to be simplified in processing technology and the processing difficulty is reduced; meanwhile, the air storage groove 211, the air supply groove 213 and the slope structure 214 are formed in one end face of the first component, so that the machining precision of the air storage groove 211, the slope structure 214 and the air supply groove 213 is guaranteed, and the actual air supply effect of the air knife structure is guaranteed.

In this embodiment, the first member 210 is fixedly connected to the second member 220, and each wall surface of the air storage groove 211 and the end surface of the second member 220, which is close to the air storage groove 211, enclose an air storage cavity; the air supply groove 213 and the end surface of the second member 220 close to the air supply groove 213 enclose an air supply port. The space between the inclined surface of the ramp structure 214 and the second member 220 forms the passage in the foregoing through which the gas in the gas storage chamber flows to the supply port. The slope structure 214 has an inclined surface inclined with respect to the bottom surface of the air storage groove 211, and can provide guidance for the air flow when the air in the air storage cavity flows to the air supply outlet, so as to help reduce the blocking of the air flow by the side wall of the air storage groove 211. It should be appreciated that when the sidewall of the air storage tank 211 near the air supply tank 213 is perpendicular to the bottom surface of the air storage tank 211, the air flow is blocked by the sidewall and then rebounds, thereby colliding with the air flow flowing to the air supply port, so that the wind force of the air supply port is reduced. Thus, the slope structure 214 also helps to reduce the collision between the rebound and the flowing air after the air flow collides with the side wall, and is beneficial to improving the air supply strength of the air supply outlet.

It should be noted that the depth of the air storage groove 211 is greater than the depth of the air supply groove 213, and the ramp structure 214 engages both the air storage groove 211 and the air supply groove 213, and the ramp structure 214 may engage the bottom surface of the air storage groove 211 or the side surface of the air storage groove 211 adjacent to the air supply groove 213.

In one embodiment, the air storage groove 211, the air supply groove 213 and the slope structure 214 can be formed on the first component 210 by a milling process, which is beneficial to reducing the manufacturing cost of the air knife structure 200.

In the embodiment of the present application, the slope structure 214 has an inclined slope that connects the air storage groove 211 and the air supply groove 213. The inclined slope may be a plane, or may be an arc or curved surface, which is not limited herein. The slope structure 214 is arranged to guide the gas in the gas storage cavity. The air in the air storage cavity can gradually converge towards the air supply outlet along the slope structure 214, so that the air supply intensity is guaranteed, the air knife structure 200 can guarantee the air flow intensity and the air flow intensity of the workpiece, and the separation effect of the air knife structure 200 on the workpiece is improved.

In this embodiment, the ramp structure 214 has a flat surface, one end of which is engaged with the air storage slot 211 and the other end of which is engaged with the air supply slot 213.

In some embodiments of the present application, the depth of the air supply slot 213 is 0.1mm. That is, the height of the air blowing port defined by the air blowing groove 213 and the second member 220 is 0.1mm. In this manner, it is advantageous to ensure the supply pressure and supply strength of the supply port, thereby helping to ensure the ability of the air knife structure 200 to separate a workpiece that is not directly picked up by the take out assembly 100 from a workpiece that is directly in contact with the take out assembly 100.

It is appreciated that the height of the air supply opening may affect the supply wind. In this embodiment, the height of the air supply slot 213 is set to 0.1mm, so that the wind power can be effectively ensured, and the air flow blown from the air supply opening can separate the workpieces which are not in direct contact with the material taking assembly 100, so that the material taking assembly 100 can pick up only one workpiece at a time.

It should be appreciated that in other embodiments, the height of the air chute 213 or the height of the air supply opening may be set according to actual air supply wind requirements to meet the operational requirements of separating workpieces that are not in direct contact with the take out assembly 100.

In some embodiments of the present application, referring to fig. 2 and 3, the air knife structure 200 further includes a first bracket 230, and the first and second members 210 and 220 are mounted to the first bracket 230.

As one embodiment, referring to fig. 2 and 3, the first member 210 is fixedly coupled to the second member 220, the second member 220 is coupled to the first bracket 230, and the first member 210 is not coupled to the first bracket 230.

In some embodiments of the present application, referring to fig. 2 and 3, the second component 220 is provided with an adjustment slot 222 extending along a first direction, a fastening hole is provided at a position of the first bracket 230 corresponding to the adjustment slot 222, and a fastener is used to penetrate through the adjustment slot 222 and the fastening hole at the same time, so as to fix the second component 220 on the first bracket 230. When the relative position of the second member 220 and the first bracket 230 needs to be adjusted, the fastener is loosened and the position of the second member 220 is adjusted, and then the fastener is tightened to complete the position adjustment. It should be noted that the first direction is the X direction in fig. 2.

As one embodiment, referring to fig. 3, the first bracket 230 is provided with a plurality of fastening holes at intervals corresponding to the positions of the adjustment slots 222, so that the second member 220 can be fixed at different positions of the first bracket 230.

Further, referring to fig. 2 and 3, the lower end of the second member 220 has a stepped structure, and the second member 220 is mounted on the first bracket 230 by the stepped structure. In this way, when the relative position between the second member 220 and the first bracket 230 is adjusted, the relative position of the second member 220 along the X direction can be changed, so that the second member 220 does not need to be positioned in the Z direction, which is helpful for improving the convenience of adjusting the position of the second member 220 in the X direction.

In some embodiments of the present application, referring to fig. 2 and 3, the air knife structure 200 further includes a sliding plate 240, where the sliding plate 240 is provided with a first sliding slot 241 extending along the second direction, and the first bracket 230 has a first sliding block 221 cooperatively connected with the first sliding slot 241. The first slider 221 is capable of sliding along the first chute 241 to change the position of the first member 210, thereby changing the position of the supply air outlet. Therefore, the position of the air supply outlet can be conveniently adjusted. It should be noted that the second direction is the Y direction shown in fig. 2.

In some embodiments of the present application, referring to fig. 2 and 3, the air knife structure 200 further includes a second bracket 250, the second bracket 250 is provided with a second sliding slot 251 extending along a third direction, the sliding plate 240 has a second sliding block slidingly connected with the second sliding slot 251, and the second sliding block can slide along the second sliding slot 251. It should be appreciated that the duct structure further includes a securing assembly that can be used to secure the sled 240 to the second bracket 250 after the relative position of the sled 240 to the second bracket 250 is adjusted. It should be noted that the third direction is the Z direction shown in fig. 2.

Therefore, the air knife structure 200 can move along the first direction, the second direction or the third direction, and the air knife structure 200 is convenient to adjust.

In some embodiments of the present application, referring to fig. 2 and 3, the air knife structure 200 further includes an correlation sensor for detecting a position of the workpiece to control air blowing of the air knife structure. Specifically, the reclaimer further includes a control device, configured to control the air knife structure 200 to act. When the correlation sensor detects that the silicon wafer passes, the silicon wafer is picked up by the material picking assembly 100, and the control device controls the air knife structure 200 to blow so as to reduce the material picking assembly 100 to simultaneously pick up a plurality of silicon wafers.

In this embodiment, referring to fig. 2 and 3, the air knife structure 200 further includes a third bracket 270, the third bracket 270 is mounted on the slide 240, and the correlation sensor is mounted on the third bracket 270. Further, the third bracket 270 may slide along the first sliding groove 241 to adjust the position of the correlation sensor.

In this embodiment, referring to fig. 2 and 3, two first supports 230 are disposed in the middle of the first chute 241 of the slide plate 240, a blowing structure composed of a first component and a second component is mounted on each first support 230, and an air supply port of each blowing structure is disposed towards the material box 300, and when the suction cup of the material taking assembly 100 picks up a silicon wafer from the material box 300, the air supply port of each blowing structure can separate the silicon wafer that is not directly adsorbed by the suction cup from the silicon wafer that is adsorbed by the suction cup, and make the silicon wafer fall back into the material box again.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model. Furthermore, embodiments of the utility model and features of the embodiments may be combined with each other without conflict.

Claims (10)

1. A reclaimer machine, comprising:

the material taking assembly is used for picking up the workpiece;

the air knife structure is arranged on one side of the material taking assembly and is provided with an air storage cavity, an air inlet and an air supply outlet, wherein the air inlet and the air supply outlet are respectively communicated with the air storage cavity, a slope structure is arranged between the air supply outlet and the air storage cavity, the air storage cavity points to the direction of the air supply outlet, and the cross section area of a channel formed at the slope structure is gradually reduced.

2. The reclaimer machine according to claim 1, wherein the air knife structure comprises a first part and a second part which are stacked, the first part is provided with an air storage groove and an air supply groove, a slope structure is arranged between the air storage groove and the air supply groove, the slope structure and the air supply groove are in a ladder shape, the end face, close to the air storage groove, of the second part forms the air storage cavity with the air storage groove, and the end face, close to the air supply groove, of the second part forms the air supply opening with the air supply groove.

3. The reclaimer machine of claim 2, wherein the depth of the blast slot is 0.1-0.2mm.

4. A reclaimer machine according to claim 2 or 3, wherein the air knife structure further comprises a first bracket, the first and second members being mounted to the first bracket.

5. The reclaimer machine of claim 4, wherein the second member is provided with an adjustment slot extending in a first direction, the first bracket is provided with a fastening hole at a position corresponding to the adjustment slot, and the second member is fixed to the first bracket by passing through the adjustment slot and the fastening hole at the same time through a fastener.

6. The reclaimer machine of claim 4, wherein the air knife structure further comprises a slide plate, the slide plate is provided with a first chute extending along the Y-direction, and the first bracket has a first slider cooperatively connected with the first chute.

7. The reclaimer machine of claim 6, wherein the air knife structure further comprises a second support provided with a second chute extending in the Z-direction, the slide plate having a second slide block in sliding connection with the second chute.

8. The reclaimer machine of claim 1, wherein the air knife structure further comprises an correlation sensor for detecting a position of the work piece to control air blowing of the air knife structure.

9. The reclaimer machine of claim 1, wherein the reclaiming assembly comprises a suction cup for sucking the workpiece.

10. A material handling apparatus comprising a reclaimer machine according to any of claims 1 to 9, further comprising a handling module and a magazine, the reclaimer machine transferring the work piece between the handling module and the magazine.