Separating mechanism of binding belt of tray

Abstract

According to the separating mechanism of the lacing belts of the trays, two lacing belts are bound on a tray stacking group formed by stacking a plurality of trays, and the separating mechanism of the lacing belts of the trays is suitable for separating the lacing belts. The separating mechanism of the binding belt of the tray comprises a bottom plate, two pressing modules and two stripping modules. The pressing modules are arranged on the bottom plate, and each pressing module comprises a pressing plate. The stripping modules are arranged on the bottom plate, and each stripping module comprises a set of driving pieces and two stripping pieces capable of moving between a standby position and a stripping position. When the stripping piece is at the standby position, the stripping piece is far away from the tray stacking group; and when the stripping part is at the stripping position, the stripping part is pushed by the driving part to complete the separation of the bridle.

Description

TECHNICAL FIELD

[0001] The present invention relates to a device suitable for semiconductor manufacturing, and in particular, to a strap disengaging mechanism of a tray. BACKGROUND

[0002] With the rapid progress of technology, the semiconductor industry has played a vital role in the world. Advanced packaging technology is an integral part of the semiconductor industry.

[0003] In general, the conventional semiconductor packaging process places multiple pieces formed by cutting a wafer in a tray made of polypropylene material to facilitate the transportation of the pieces in the production line. In order to transport more pieces in the production line at the same time, the tray is stacked to form a tray stack. In order to avoid the tray from falling or disengaging from each other during subsequent handling, a strap is usually used to bind the tray stack to fix the tray, and before the next process, the strap must be removed to take out the pieces from the tray.

[0004] However, the use of manual disengaging method may inevitably cause human error, and may also cause labor consumption, tedious operation and other disadvantages. Accordingly, as Figure 1 A disengaging device suitable for semiconductor manufacturing is disclosed. Referring to Figure 1 , the disengaging device includes a removal device 9 for removing two straps 8, the removal device 9 includes a plurality of driving members 91 arranged at intervals for pushing the straps 8, a plurality of stop members 92 arranged corresponding to the driving members 91, and two receiving members 93 defining two accommodation spaces 94 and abutting against the stop members 92. In use, the removal device 9 is operated by an automated robotic arm, and the straps 8 bound to a tray stack are pushed by the driving members 91 to the left and right sides. When the straps 8 are pushed to the upper region of the receiving members 93, the stop members 92 stop the driving members 91 from operating, thereby stopping the pushing of the straps 8. At this time, the straps 8 are disengaged from the tray stack and fall into the accommodation spaces 94 of the receiving members 93, thereby completing the disengaging process of the straps 8.

[0005] However, the above-mentioned disengaging device may cause displacement between the trays of the tray stack or uneven stacking during the process of disengaging the straps 8 from the tray stack due to uneven force or unclear positioning, which may cause subsequent production line disorder. Therefore, the conventional device needs to be improved. SUMMARY

[0006] The present application aims to provide a band releasing mechanism for a pallet, which can perform band releasing operation and ensure the integrity of the pallet stack.

[0007] The band releasing mechanism for a pallet of the present application is applicable to two pallet stack groups, each of which has bands bundled around a pallet stack formed by stacking a plurality of pallets, and the band releasing mechanism is applicable to releasing the bands.

[0008] The band releasing mechanism for a pallet of the present application comprises:

[0009] A base plate is provided for the pallet stack group.

[0010] Two pressing modules are provided on the base plate in a first direction and spaced apart from each other, and each of the pressing modules comprises a pressing plate capable of abutting against the pallet stack in a second direction perpendicular to the first direction.

[0011] Two stripping modules are provided on the base plate in the first direction and spaced apart from each other, and each of the stripping modules comprises a driving member spaced apart from the corresponding pressing module, and two stripping members connected to the driving member in the second direction and spaced apart from each other, the stripping members being capable of moving in the second direction between a standby position and a stripping position, the stripping members being away from the pallet stack in the standby position, and the stripping members being capable of being driven by the driving member and pushing the bands away from each other in the second direction in the stripping position.

[0012] The band releasing mechanism for a pallet of the present application further comprises two recovery units provided on the base plate and spaced apart from each other in the second direction and adjacent to opposite sides of the pallet stack group, and used for recovering the bands released from the pallet stack group.

[0013] The band releasing mechanism for a pallet of the present application further comprises two fixing jigs provided on the base plate and abutting against the pallet stack in the first direction and spaced apart from each other.

[0014] The band releasing mechanism for a pallet of the present application further comprises two detection members spaced apart from each other in the first direction, which jointly define a sensing line, thereby used for determining whether the pallet stack group is fixed to the fixing jigs.

[0015] The band releasing mechanism for a pallet of the present application further comprises two positioning discrimination units provided above the base plate and spaced apart from each other in the second direction, and used for detecting whether the bands are released from the pallet stack group.

[0016] The disengaging mechanism of the strap of the tray further comprises two recovery units arranged at opposite sides of the tray stack group respectively and spaced apart from each other along the second direction, and each of the positioning discrimination units comprises two positioning discrimination members arranged along the first direction and spaced apart from each other, and the positioning discrimination members are photoelectric sensors projecting along the first direction, and a virtual sensing line is formed at the opening of the recovery unit on the same side.

[0017] The disengaging mechanism of the strap of the tray, each of the recovery units comprises a recovery member defining a recovery space, and at least one fullness sensor arranged in the recovery space for detecting whether the strap is overflowing.

[0018] The disengaging mechanism of the strap of the tray further comprises a visual detection module arranged above the bottom plate and used for shooting the tray stack group from a height higher than the tray stack group.

[0019] The disengaging mechanism of the strap of the tray, each of the pressing plates has a plate piece capable of abutting against the tray stack group along the second direction, and two connecting members extending along the first direction, the connecting members are connected to the two sides of the plate piece along the second direction, and used for balancing the force when the plate piece is pressed.

[0020] The disengaging mechanism of the strap of the tray, the driving member of the stripping module is connected to the pressing module, and used for driving the pressing plate of the pressing module to press against the tray stack group.

[0021] The beneficial effects of the present application are that the plate piece of each pressing module abuts against the tray stack group, and the stripping member of each stripping module moves between the standby position and the stripping position, so that each tray of the tray stack group can be positioned by the pressing plate while the strap is pushed, and the tray stack group can be prevented from being arranged irregularly or displaced until the strap is completely disengaged from the tray stack group. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic top view of a known strap disengaging device;

[0023] Figure 2 is a top view of an embodiment of the disengaging mechanism of the strap of the tray of the present application;

[0024] Figure 3 are two pressing modules and two stripping modules of the embodiment;

[0025] Figure 4 This is a top view of the peeling component of the peeling module in this embodiment in a ready position;

[0026] Figure 5 This embodiment is in conjunction with Figure 4 A schematic diagram of a recycling unit; and

[0027] Figure 6 This is a side view of the peeling member in one peeling position according to this embodiment. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] See Figure 2 The embodiment of the tray strap detachment mechanism of the present invention is applicable to two spaced-apart straps 8 being bound together in a tray stack group 81 consisting of multiple trays 80, and to the subsequent detachment and retrieval of the straps 8.

[0030] Define a first direction X and a second direction Y perpendicular to the first direction X. The subsequent operation of this embodiment will be described in terms of movement along either the first direction X or the second direction Y.

[0031] See Figure 2 and Figure 3 An embodiment of the tray strap release mechanism of the present invention includes a base plate 1 suitable for mounting the tray stack 81, two fixing fixtures 2 disposed on the base plate 1 and spaced apart from each other along the first direction X and abutting against the tray stack 81, two detection elements A spaced apart from each other along the first direction X on the base plate 1, two pressing modules 3 spaced apart from each other on the base plate 1 along the first direction X, two peeling modules 4 extending in a direction parallel to the second direction Y and spaced apart from each other on the base plate 1, two recycling units 5 spaced apart from each other along the second direction Y on opposite sides adjacent to the tray stack 81, two positioning discrimination units 6 spaced apart from each other above the base plate 1 along the second direction Y, and a visual inspection module 7 disposed above the base plate 1 for photographing the tray stack 81 from a height higher than the tray stack 81. Preferably, the detection element A employs an optical sensing mechanism, and together they form a sensing line A0 along the first direction X that is suitable for penetrating the tray stack group 81, thereby determining whether the tray stack group 81 is fixed to the fixing fixture 2.

[0032] See Figure 3To facilitate the explanation of the operation of the pressing module 3 and the peeling module 4, in Figure 3 The visual inspection module 7 is not shown in the diagram. Each pressing module 3 includes a pressing plate 31 that can be flush against the tray stack 81 along the second direction Y. Each pressing plate 31 has a plate 311 that can be flush against the tray stack 81 along the second direction Y, and two connecting members 312 that extend along the first direction X and are spaced apart from each other along the second direction Y and are connected to the sides of the plate 311 to balance the force when the plate 311 is pressed. Specifically, in this embodiment, the trays 80 can be stacked 3 to 13 times, therefore the longitudinal height of each plate 311 of each pressing plate 31 must be at least higher than the longitudinal height of 13 layers of trays 80.

[0033] See Figure 2 , 4 to Figure 6 Each of the peeling modules 4 includes a drive member 41 spaced apart from the corresponding pressing module 3, and two peeling members 42 connected to the drive member 41 at intervals along the second direction Y. The peeling members 42 are movable along the second direction Y between a standby position and a peeling position. Figure 2 As shown, when the peeler 42 is in the standby position, the peeler 42 is away from the tray stack 81, and the plates 311 of each pressing plate 31 are also spaced apart from the tray stack 81; as Figure 4 and Figure 5 As shown, when the peeling member 42 of each of the peeling modules 4 is in the peeling position, each of the driving members 41 drives the plate 311 to abut against the tray stack 81, and can drive the peeling member 42 to push the strap 8 away from each other in the second direction Y until the strap 8 is completely detached from the tray stack 81 and falls into the recycling unit 5.

[0034] It is worth mentioning that, in this embodiment, the driving component 41 of the peeling module 4 is driven by a cylinder to move the peeling component 42. However, in actual implementation, a motor can also be used to drive the peeling component 42, and the driving method is not limited to the example described above. In addition to driving the peeling component 42, the driving component 41 can also use air pressure to adjust and drive the plate 311 of the pressing plate 31 to press against the tray stack assembly 81. Depending on the different types of tray stack assemblies 81 or the varying number of trays 80, the pressure can be adjusted to change the pressing force, thereby achieving the best fixing effect.

[0035] Also see Figure 6Each of the recycling units 5 is used to recycle the straps 8 that have detached from the tray stack group 81, including a recycling component 51 defining a recycling space 50, and at least one set of full-load sensors 52 disposed in the recycling space 50. Each recycling component 51 is specifically a strap storage box, and the full-load sensors 52 preferably employ an optical sensing mechanism to detect whether the straps 8 exceed the capacity of the recycling space 50. It should also be noted that, depending on site requirements, each recycling unit 5 preferably has several full-load sensors 52, arranged equidistantly and horizontally at intervals along the first direction X, forming a grating-like structure, to detect situations where the straps 8 falling into the recycling space 50 may cause irregular stacking.

[0036] Revisit Figure 3 Each of the positioning discrimination units 6 includes two positioning discrimination elements 61 arranged at intervals along the first direction X. The positioning discrimination elements 61 are defined to be projected onto each other along the first direction X, thereby forming a virtual sensing line 60 at the opening of the recycling unit 5 on the same side. The virtual sensing line 60 is projected using infrared light and can detect whether the strap 8 has successfully fallen from the tray stack 81.

[0037] In practice, when the stripping module 4 starts operating, since the positioning discrimination element 61 of the positioning discrimination unit 6 is composed of photoelectric sensors and projects infrared light through the virtual sensing line 60, when the strap 8 is pulled to the virtual sensing line 60, it will block the virtual sensing line 60. Subsequently, due to gravity, it will automatically fall into the recovery space 50 of the recovery element 51, at which point the infrared light will return to an unobstructed state. Therefore, by using the condition of whether the virtual sensing line 60 has an obstruction signal, it can be determined whether the strap 8 has successfully fallen.

[0038] Revisit Figure 2 It should be noted that the visual inspection module 7 in this embodiment mainly uses a CCD visual inspection system for assisted inspection. When the tray stack 81 is placed on the base plate 1 and fixed against the fixing fixture 2, the visual inspection module 7 can read the barcode based on the important information recorded on the barcode above the tray stack 81. In addition, when the tray stack 81 is fixed against the fixing fixture 2, the visual inspection module 7 can also be used to confirm whether the tray stack 81 is completely placed on the base plate 1, and at the same time confirm whether the tray stack 81 is tied with the strap 8. Furthermore, in conjunction with the positioning discrimination component 61, it can also confirm whether the strap 8 has been successfully detached, thereby serving as a mechanism to ensure the normal operation of this embodiment.

Claims

1. A tray strap release mechanism for two spaced-apart straps bound together in a tray stack consisting of multiple stacked trays, the tray strap release mechanism being adapted to release the straps, characterized in that... The tray strap release mechanism includes: Base plate, suitable for mounting the pallet stacking group; Two pressing modules are spaced apart from each other on the base plate along a first direction, each pressing module including a pressing plate that can flush against the pallet stacking assembly along a second direction perpendicular to the first direction; and Two stripping modules are disposed on the base plate at intervals along the first direction. Each stripping module includes a drive member spaced apart from the corresponding pressing module and two stripping members connected to the drive member at intervals along the second direction. The stripping members can move between a standby position and a stripping position along the second direction. When the stripping member is in the standby position, it is away from the tray stack. When the stripping member is in the stripping position, it is driven by the drive member and pushes the strap away from each other in the second direction.

2. The tray strap release mechanism according to claim 1, characterized in that: The tray strap detachment mechanism further includes two retrieval units spaced apart from each other along the second direction on opposite sides of the adjacent tray stack group, for retrieving the straps detached from the tray stack group.

3. The tray strap release mechanism according to claim 1, characterized in that: The tray strap release mechanism further includes two fixing fixtures disposed on the base plate and spaced apart from each other along the first direction, abutting against the tray stack assembly.

4. The tray strap release mechanism according to claim 3, characterized in that: The tray strap release mechanism further includes two detection elements spaced apart along the first direction, which together define a sensing line for determining whether the tray stack is fixed to the fixing fixture.

5. The tray strap release mechanism according to claim 1, characterized in that: The tray strap detachment mechanism further includes two positioning discrimination units arranged at intervals above the base plate along the second direction, and used to detect whether the strap has detached from the tray stack group.

6. The tray strap release mechanism according to claim 5, characterized in that: The tray strap detachment mechanism further includes two retrieval units arranged at intervals along the second direction on opposite sides of the adjacent tray stack, for retrieving items detached from the strap. Each positioning discrimination unit includes two positioning discrimination elements arranged at intervals along the first direction, and the positioning discrimination elements are photoelectric sensors projected onto each other along the first direction, forming a virtual sensing line at the opening of the retrieval unit on the same side.

7. The tray strap release mechanism according to claim 2, characterized in that: Each of the recycling units includes a recycling component that defines a recycling space, and at least one full sensor disposed in the recycling space for detecting whether the strapping overflows.

8. The tray strap release mechanism according to claim 1, characterized in that: The tray strap release mechanism also includes a visual inspection module disposed above the base plate and used to photograph the tray stack from a height above the tray stack.

9. The tray strap release mechanism according to claim 1, characterized in that: Each of the pressing plates has a plate that can be flush against the pallet stack in the second direction, and two connectors extending in the first direction, the connectors being spaced apart from each other on both sides of the plate in the second direction, and for balancing the forces when the plate is pressed.

10. The tray strap release mechanism according to claim 1, characterized in that: The drive unit of the stripping module is connected to the pressing module and is used to drive the pressing plate of the pressing module to press against the tray stack.

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