Tray grasping cross-stacking device

Abstract

This utility model provides a tray gripping and cross-stacking device, belonging to the technical field of gripping devices. It includes a rotary cylinder connected to a gripping assembly. The gripping assembly includes a gripping base with a first elongated groove. The first elongated groove is detachably connected to an extension seat via bolts, enabling lateral position adjustment. The advantage of this utility model is that by setting up the gripping assembly and adjusting the position of the extension seat on the gripping base and the position of the gripping suction cup on the extension seat, it can be arranged according to trays of different sizes. This ensures that the trays are evenly distributed on the tray surface during gripping, resulting in uniform force during gripping. Uneven force prevents tray damage or unstable gripping, ensuring that the suction force at each vacuum gripping position meets the standard, providing a strong guarantee for stable tray gripping.

Description

Technical Field

[0001] This utility model relates to the field of gripping device technology, and in particular to a material tray gripping and cross-stacking device. Background Technology

[0002] A suction cup gripper is a device that uses the suction force generated by a suction cup to grasp objects. It has wide applications in many fields such as industrial production and logistics. Its working principle is to use a vacuum pump or other air extraction device to extract the air from inside the suction cup, thereby creating a negative pressure environment. The external atmospheric pressure then firmly presses the suction cup onto the surface of the object, thus achieving the purpose of gripping.

[0003] Currently, there are various suction cup gripping devices on the market designed for different objects. However, these devices are generally highly targeted, and some devices can only be used to grip products of specific sizes. They are not very convenient to use and are difficult to promote.

[0004] The technical content disclosed in the Chinese patent document (publication number: CN217544574U, patent name: a suction cup gripping robot) is as follows: a gripping cylinder is installed in the middle of the support, a vacuum connection port is installed at the upper end of the support, a vacuum port mounting seat is installed between the support and the vacuum connection port, a vacuum rod is connected to the bottom of the vacuum connection port, a vacuum suction cup is installed at the bottom of the vacuum rod, a lifting rod is provided at the bottom of the gripping cylinder, a clamp is installed at the bottom of the lifting rod, a gripping claw is installed at the bottom of the clamp, a hook-shaped claw is provided on the inner side of the gripping claw, and the vacuum suction cup contacts the product.

[0005] As can be seen from the aforementioned patent documents, the relative positions of the suction cups on this suction cup gripping robot are fixed. This leads to an over-concentration of gripping force for items whose area to be covered is larger than the area covered by the suction cups; while for items whose area to be covered is smaller than the area covered by the suction cups, the suction cups arranged around the perimeter are not fully utilized, resulting in insufficient vacuum strength in the gas suction cups sharing the same vacuum generator. Therefore, the application scope of this gripping robot is relatively limited, and its adoption is not widespread.

[0006] For example, in gripping large sheet materials, if the sheet area is much larger than the area covered by the suction cups, the gripping force is concentrated in a limited area, which may lead to unstable gripping or even damage to the sheet. Conversely, for smaller parts, if their area is much smaller than the area covered by the suction cups, the surrounding suction cups are idle, the overall vacuum force is insufficient, and the parts cannot be effectively gripped. This limitation makes it difficult to widely promote and apply this device when facing diverse gripping needs. Utility Model Content

[0007] The utility model overcomes the shortcomings of the prior art and provides a material tray gripping and cross-stacking device. It is equipped with gripping components to ensure that the material tray is subjected to uniform force during gripping, avoiding damage to the material tray or unstable gripping due to uneven force, and ensuring that the adsorption force of each vacuum gripping position reaches the standard, thus providing a strong guarantee for stable gripping of the material tray.

[0008] To solve the above-mentioned technical problems, the utility model is implemented through the following technical solution:

[0009] A tray gripping and cross-stacking device includes a rotary cylinder connected to a gripping assembly. The gripping assembly includes a gripping base with a first long groove. The first long groove is detachably connected to an extension body via bolts to achieve lateral position adjustment.

[0010] The extended base is provided with a second long groove, and the second long groove is equipped with one or more gripping suction cups. The gripping suction cups are locked in the longitudinal position by locking nuts.

[0011] Furthermore, the rotary cylinder is connected to the output end of the lifting cylinder, which is connected to the transfer frame. The transfer frame is made of aluminum alloy and has hollowed-out weight-avoiding holes.

[0012] Furthermore, a vacuum generator is provided on one side of the cutting frame, and the vacuum generator is connected to the gripping suction cup.

[0013] Furthermore, the cutting frame is connected to the moving block of the cutting cylinder.

[0014] Furthermore, the gripping suction cup includes a suction cup cylinder with external threads on its outer periphery. The external threads are used to connect locking nuts, and the gripping suction cup can be clamped and installed on the second long slot through the two locking nuts on the outside of the suction cup cylinder.

[0015] Furthermore, a spring is provided inside the suction cup cylinder, and a sliding rod is slidably inserted into the suction cup cylinder. A spring limiting ring is provided on the sliding rod, and the spring limiting ring is connected to the lower end of the spring.

[0016] Furthermore, the lower end of the sliding rod is connected to a suction nozzle, which is made of silicone material.

[0017] Furthermore, the nozzle has one or more buffer folding rings in the middle, and the nozzle opening is funnel-shaped.

[0018] Furthermore, the rotation angle of the rotary cylinder is 90° or 180°, and the rotary cylinder is linked with the lifting cylinder for control, so that the gripping component rotates synchronously during the lifting process to achieve cross-stacking of the material trays.

[0019] Compared with existing technologies, the advantages of this utility model are:

[0020] A gripping assembly is installed. The first long slot on the gripping base is detachably connected to the extension body via bolts, allowing for lateral position adjustment. The second long slot on the extension body is equipped with a gripping suction cup, which is locked in its longitudinal position via a locking nut. By adjusting the positions of the extension body on the gripping base and the gripping suction cup on the extension body, different sized trays can be arranged to ensure that the trays are evenly distributed on the tray surface during gripping. This ensures uniform force distribution during gripping, preventing damage to the trays or unstable gripping due to uneven force distribution. It also guarantees that the suction force at each vacuum gripping position meets the standard, providing a strong guarantee for stable tray gripping. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the utility model and, together with the embodiments of the utility model, are used to explain the utility model. They do not constitute a limitation on the utility model. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the material tray gripping and cross-stacking device according to an embodiment of the present invention;

[0023] Figure 2 This is an exploded view of the material tray gripping and cross-stacking device according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the gripping component structure according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the gripping suction cup structure according to an embodiment of the present invention.

[0026] In the diagram: 1. Transfer cylinder; 2. Transfer frame; 201. Vacuum generator; 3. Lifting cylinder; 4. Rotating cylinder; 5. Gripping assembly; 501. Gripping base; 5011. First long slot; 502. Extension base; 5021. Second long slot; 503. Gripping suction cup; 5031. Suction cup cylinder; 5032. Locking nut; 5033. Sliding rod; 5034. Suction nozzle. Detailed Implementation

[0027] The preferred embodiments of the utility model are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the utility model.

[0028] like Figures 1 to 4As shown, a tray gripping and cross-stacking device is used to perform tray gripping and cross-stacking tasks. It includes a rotary cylinder 4 connected to the output end of a lifting cylinder 3, which is connected to a transfer frame 2. The transfer frame 2 is made of aluminum alloy, a material that not only has good strength but also effectively reduces the overall weight of the device, improving operating efficiency. The transfer frame 2 is equipped with perforated weight-avoidance holes. These holes significantly reduce the weight of the transfer frame 2 while cleverly ensuring the rigidity of its connection points, ensuring the structural stability of the device during operation and preventing the weight reduction from affecting overall performance. The transfer frame 2 is connected to the moving block of the transfer cylinder 1. Driven by the transfer cylinder 1, the position of the gripping component 5 can be flexibly adjusted to accurately reach the position above the tray to be picked up.

[0029] A rotary cylinder 4 is connected to a gripping assembly 5. The gripping assembly 5 includes a gripping base 501, on which a first elongated groove 5011 is provided. The first elongated groove 5011 is detachably connected to an extension seat 502 by bolts, enabling lateral position adjustment. The extension seat 502 is provided with a second elongated groove 5021, on which one or more gripping suction cups 503 are configured. The gripping suction cups 503 are longitudinally locked by locking nuts 5032. By adjusting the position of the extension seat 502 on the gripping base 501 and the position of the gripping suction cups 503 on the extension seat 502, the gripping suction cups 503 can be arranged according to different sized trays, ensuring that the trays are evenly distributed on the tray surface when gripped. This uniformly distributed design ensures that the material tray is subjected to uniform force when being gripped, avoiding problems such as tray damage or unstable gripping caused by uneven force. It also ensures that the adsorption force at each vacuum gripping position meets the standard for gripping force, providing a strong guarantee for stable gripping of the material tray.

[0030] During operation, the transfer cylinder 1 first precisely moves the gripping component 5 above the tray to be picked up. Next, the lifting cylinder 3 descends, at which point the suction nozzle 5034 automatically contacts the tray and adaptively clamps it. When the suction nozzle 5034 contacts the tray, the vacuum generator 201 quickly activates, generating suction to firmly hold the tray in place. Subsequently, the lifting cylinder 3 rises, while the rotating cylinder 4 rotates at a set angle. Here, the rotation angle of the rotating cylinder 4 is 90° or 180°, and the rotating cylinder 4 is linked to the lifting cylinder 3, causing the gripping component 5 to rotate synchronously during the lifting process, thereby achieving the cross-stacking action of the trays. After being transferred to the stacking position, the device smoothly releases the trays. By repeatedly performing the above-mentioned tray gripping and cross-stacking operations, the tray stacking task is efficiently completed.

[0031] A vacuum generator 201 is provided on one side of the transfer frame 2. The vacuum generator 201 is connected to the gripping suction cup 503 to provide a stable and reliable vacuum suction force for the gripping suction cup 503, ensuring that the material tray can be firmly gripped.

[0032] The gripping suction cup 503 includes a suction cup cylinder 5031. The suction cup cylinder 5031 has an external thread on its outer periphery. The external thread is used to connect the locking nut 5032. Through the two locking nuts 5032 on the outside of the suction cup cylinder 5031, the gripping suction cup 503 can be firmly clamped and installed on the second long slot 5021, which facilitates quick and easy installation and disassembly, and makes maintenance and replacement convenient.

[0033] A spring is installed inside the suction cup cylinder 5031, and a sliding rod 5033 is slidably inserted into the suction cup cylinder 5031. A spring limiting ring is installed on the sliding rod 5033, and the spring limiting ring is connected to the lower end of the spring. When the suction nozzle 5034 contacts the material tray, the spring is compressed to form a buffer. This buffering mechanism not only effectively protects the surface of the material tray from damage, but also automatically compensates for the height deviation of each gripping suction cup 503 when the suction nozzle 5034 contacts the material tray. Because in actual operation, the surface of the material tray may have a certain degree of unevenness or positional error, the buffering effect of the spring ensures that each gripping suction cup 503 can make good contact with the material tray and perform stable gripping, further improving the reliability and stability of gripping.

[0034] The lower end of the sliding rod 5033 is connected to the suction nozzle 5034, which is made of silicone material. Silicone material has many excellent properties. It is not only soft and can provide good fit when in contact with the material tray, but also has excellent flexibility and wear resistance, which can effectively ensure the stability and durability of the suction nozzle 5034 during the gripping process.

[0035] The suction nozzle 5034 has one or more buffer folding rings in its center. The nozzle 5034 has a funnel-shaped opening, which enhances sealing. When the gripping suction cup 503 contacts the tray, the funnel-shaped opening fits tightly against the tray surface, reducing air leakage and ensuring that the strong suction force effectively acts on the tray, providing a solid guarantee for stable gripping. The central buffer folding rings provide cushioning, quickly absorbing impact force upon contact between the nozzle 5034 and the tray. This not only effectively prevents scratches on the tray surface, protecting its integrity, but also allows the gripping suction cup 503 to firmly hold the tray even with slight deformation or positional errors, thanks to the cushioning effect of the central buffer folding rings and the moderate deformation of the nozzle 5034 itself. This adaptive gripping mechanism further ensures the adsorption stability of the gripping suction cup 503, reliably completing gripping tasks even in various complex tray conditions.

[0036] The rotary cylinder 4 rotates at an angle of 90° or 180° and is linked to the lifting cylinder 3, causing the gripping component 5 to rotate synchronously during the lifting process to achieve cross-stacking of the material trays. During operation, when the lifting cylinder 3 descends to bring the suction nozzle 5034 into contact with the material tray and complete the suction action, the lifting cylinder 3 rises, and simultaneously, the rotary cylinder 4 rotates synchronously at a preset angle. Through this coordinated operation, the gripping component 5 rotates synchronously during the lifting process, thereby achieving cross-stacking of the material trays. This ensures that the material trays can be cross-stacking in a predetermined manner, improving the working efficiency and accuracy of the device, and enabling it to efficiently and orderly complete the material tray stacking task, meeting the needs of material tray sorting and storage in different production scenarios.

[0037] The tray gripping and cross-stacking device of this utility model is equipped with a gripping component 5. The first elongated groove 5011 on the gripping base 501 is detachably connected to the extension body 502 by bolts, which can realize lateral position adjustment. The second elongated groove 5021 on the extension body 502 is equipped with a gripping suction cup 503, and the gripping suction cup 503 is locked in the longitudinal position by a locking nut 5032. By adjusting the position of the extension body 502 on the gripping base 501 and the position of the gripping suction cup 503 on the extension body 502, trays of different sizes can be arranged to ensure that the trays are evenly distributed on the tray surface, so that the force is uniform when gripping the trays, avoiding damage to the trays or unstable gripping due to uneven force, and ensuring that the adsorption force at each vacuum gripping position reaches the standard, providing a strong guarantee for stable gripping of the trays.

[0038] Finally, it should be noted that the above are merely preferred embodiments of the utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the utility model should be included within the protection scope of the utility model.

Claims

1. A tray pick cross-stacking device characterized by, It includes a rotary cylinder (4), which is connected to a gripping assembly (5). The gripping assembly (5) includes a gripping base (501), on which a first long groove (5011) is provided. The first long groove (5011) is detachably connected to an extension seat (502) by bolts to achieve lateral position adjustment. The extension seat (502) is provided with a second long groove (5021), and the second long groove (5021) is equipped with one or more gripping suction cups (503). The gripping suction cups (503) are locked in the longitudinal position by locking nuts (5032).

2. The tray grab cross-stacking device of claim 1, wherein, The rotary cylinder (4) is connected to the output end of the lifting cylinder (3), and the lifting cylinder (3) is connected to the transfer frame (2). The transfer frame (2) is made of aluminum alloy and has hollowed-out weight-avoiding holes.

3. The tray grab cross-stacking device of claim 2, wherein, A vacuum generator (201) is provided on one side of the transfer frame (2), and the vacuum generator (201) is connected to the gripping suction cup (503).

4. The tray grab cross-stacking device of claim 3, wherein, The cutting frame (2) is connected to the moving block of the cutting cylinder (1).

5. The tray grab cross-stacking device of any one of claims 1 to 4, wherein, The gripping suction cup (503) includes a suction cup cylinder (5031), and the outer periphery of the suction cup cylinder (5031) is provided with an external thread for connecting a locking nut (5032). The gripping suction cup (503) can be clamped and installed on the second long groove (5021) through the two locking nuts (5032) on the outside of the suction cup cylinder (5031).

6. The tray grab cross-stacking device of claim 5, wherein, The suction cup cylinder (5031) is equipped with a spring inside, and a sliding rod (5033) is slidably inserted into the suction cup cylinder (5031). A spring limiting ring is provided on the sliding rod (5033), and the spring limiting ring is connected to the lower end of the spring.

7. The tray grab cross-stacking device of claim 6, wherein, The lower end of the sliding rod (5033) is connected to the suction nozzle (5034), which is made of silicone material.

8. The tray grab cross-stacking device of claim 7, wherein, The nozzle (5034) has one or more buffer folding rings in the middle, and the opening of the nozzle (5034) is funnel-shaped.

9. The tray grab cross-stacking device of any of claims 1-4, 6-8, wherein, The rotation angle of the rotary cylinder (4) is 90° or 180°, and the rotary cylinder (4) is linked with the lifting cylinder (3) to make the gripping component (5) rotate synchronously during the lifting process to achieve cross stacking of the material trays.

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