A lifting device and a vacuum dehumidification turnover box

Abstract

This utility model belongs to the technical field of cigarette equipment and discloses a lifting device and a vacuum rehumidification turnover box. The lifting device includes: a tray, an elastic element, and two lifting brackets. The tray can be set parallel to the bottom plate of the vacuum rehumidification turnover box. The two lifting brackets are set parallel and spaced apart along a first direction. Each lifting bracket includes a first support rod and a second support rod. The midpoint of the first support rod and the midpoint of the second support rod along their length directions are hinged to form a scissor structure. The elastic element can undergo elastic deformation along a second direction and is connected between one end of the first support rod near the bottom plate of the vacuum rehumidification turnover box and the other end of the second support rod near the bottom plate of the vacuum rehumidification turnover box. This allows the first and second support rods to rotate around the hinge point, thereby rigidly connecting the tray and the bottom plate of the vacuum rehumidification turnover box. This avoids uneven tobacco falling causing the tray to tilt, which could lead to device jamming or tobacco leaf breakage.

Description

Technical Field

[0001] This utility model relates to the field of cigarette equipment technology, and in particular to a lifting device and a vacuum rehumidification turnover box. Background Technology

[0002] The turnover box used in the online continuous vacuum rehumidification system for tobacco processing operates under a high-temperature and humid environment, allowing the tobacco in the turnover box to absorb moisture and achieve the purpose of rehumidification. During operation, the tobacco sheets are easily broken due to their large weight when they fall into the turnover box from the feeder.

[0003] To address the aforementioned issues, one related technology involves a turnover box equipped with four springs. The upper ends of the springs are connected to the inner edges of the upper corners of the four corners of the turnover box, while the lower ends of the springs are connected to the four corners of the tray. This allows the tray to move within the tray, reducing the height difference of the falling tobacco blocks. However, since the cigarette machine cannot guarantee that the tobacco blocks will fall evenly onto the tray, uneven falling results in uneven force on the tray. The inconsistent deformation of the multiple springs may cause the tray to tilt, leading to device jamming or even causing the tobacco blocks to collide and break. Utility Model Content

[0004] The purpose of this utility model is to provide a lifting device and a vacuum rehumidification turnover box. This upgraded device can avoid the problem of tray tilting caused by uneven falling of tobacco blocks.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] On one hand, a lifting device is provided, comprising: a tray, an elastic element, and two lifting brackets. The tray is arranged parallel to the bottom plate of a vacuum rehumidification turnover box and is used to support the tobacco blocks to be turned over. The two lifting brackets are arranged parallel and spaced apart along a first direction. Each lifting bracket includes a first support rod and a second support rod. The midpoint of the length direction of the first support rod and the midpoint of the length direction of the corresponding second support rod are hinged to form a scissor structure, so that the lifting bracket can drive the tray to move along the depth direction of the vacuum rehumidification turnover box. The elastic element is capable of elastic deformation along a second direction and is connected between one end of the first support rod near the bottom plate of the vacuum rehumidification turnover box and the other end of the second support rod near the bottom plate of the vacuum rehumidification turnover box, so that the first support rod and the second support rod rotate around the hinge point, and the second direction is perpendicular to the first direction.

[0007] Preferably, the lifting device further includes two sliding rods and two rotating rods. The two rotating rods are arranged parallel to each other and spaced apart along the depth direction of the vacuum rehumidification turnover box. The first end of the first support rod is rotatably connected to the tray through one of the two rotating rods. The first end of the second support rod is rotatably connected to the bottom plate of the vacuum rehumidification turnover box through the other of the two rotating rods. The two sliding rods are arranged parallel to each other and spaced apart along the depth direction of the vacuum rehumidification turnover box. One of the two sliding rods is slidably connected to the tray and rotatably connected between the second ends of the two second support rods. The other of the two sliding rods is slidably connected to the bottom plate of the vacuum rehumidification turnover box and rotatably connected between the second ends of the two first support rods.

[0008] Preferably, the lifting device further includes two first guide members and two second guide members. The two first guide members are fixedly connected to the bottom plate of the vacuum rehumidification turnover box, and the two second guide members are fixedly connected to the bottom surface of the tray. Each of the two first guide members is provided with a first sliding groove, and each of the two second guide members is provided with a second sliding groove. Both the two first sliding grooves and the two second sliding grooves extend along a second direction. The two ends of the sliding rod rotatably connected between the second ends of the two first support rods are slidably connected to the two first sliding grooves in a one-to-one correspondence. The two ends of the sliding rod rotatably connected between the second ends of the two second support rods are slidably connected to the two first sliding grooves in a one-to-one correspondence.

[0009] Preferably, two first rollers are provided on the sliding rod away from the support plate, and the two first rollers are respectively arranged on the side of the two first support rods that are far apart from each other. The two first rollers roll relative to the first guide members along the length direction of the corresponding first guide members.

[0010] Preferably, two second rollers are provided on the sliding rod near the tray, and the two second rollers are respectively arranged on the side of the two second support rods that are far apart from each other. The two second rollers roll relative to the second guide members along the length direction of the corresponding second guide members.

[0011] Preferably, the lifting device further includes four first limiting plates, each of the two ends of each first guide member is connected to two first limiting plates, and the corresponding two first limiting plates are arranged parallel to each other along the second direction, and each first roller is arranged between the corresponding two first limiting plates.

[0012] And / or, the lifting device further includes four second limiting plates, each of the two ends of each second guide member is connected to two second limiting plates, and the corresponding two second limiting plates are arranged parallel to each other along the second direction, and each second roller is arranged between the corresponding two second limiting plates.

[0013] Preferably, the elastic element is a tension spring, with one end of the tension spring fixedly connected to a rotating rod away from the support plate, and the other end of the tension spring fixedly connected to a sliding rod away from the support plate.

[0014] Preferably, the lifting device includes multiple tension springs, which are arranged parallel to each other along a first direction.

[0015] Preferably, the pallet includes a body and a support frame arranged sequentially from top to bottom. The body is used to support the cigarette blocks to be rotated. The body is fixedly connected to the support frame. The bottom surface of the support frame is provided with a load-bearing beam that extends along a first direction.

[0016] Preferably, the lifting device also includes a buffer component. Along the depth direction of the vacuum rehumidification turnover box, the buffer component is located directly below the load-bearing beam. One end of the buffer component is used to be fixedly connected to the bottom plate of the vacuum rehumidification turnover box, and the other end of the buffer component can abut against the load-bearing beam.

[0017] On the other hand, a vacuum rehumidification turnover box is provided, which includes a bottom plate, side walls and a lifting device of any of the above technical solutions. The side walls are arranged to form an accommodating space, the lifting device is arranged in the accommodating space, and the lifting bracket and the bottom plate are movably connected.

[0018] The beneficial effects of this utility model are as follows: It provides a lifting device and a vacuum rehumidification turnover box. The pallet and the bottom plate of the vacuum rehumidification turnover box are arranged parallel and spaced apart. A lifting bracket is set between the pallet and the bottom plate of the vacuum rehumidification turnover box, so that the pallet and the bottom plate of the vacuum rehumidification turnover box are rigidly connected, avoiding the problem of the pallet tilting due to uneven falling of tobacco blocks, which could cause the device to jam or the tobacco leaves to break. Attached Figure Description

[0019] Figure 1 This is an isometric drawing of the lifting device provided by this utility model;

[0020] Figure 2 This is an exploded view of the lifting device provided by this utility model;

[0021] Figure 3 yes Figure 2 A magnified view of part A in the middle;

[0022] Figure 4 yes Figure 2 A magnified view of part B in the middle section;

[0023] Figure 5 This is a structural schematic diagram of the vacuum rehumidification turnover box provided by this utility model.

[0024] In the picture:

[0025] 1. Pallet; 11. Body; 12. Support frame; 13. Load-bearing beam;

[0026] 2. Lifting bracket; 21. First support rod; 22. Second support rod;

[0027] 3. Tension spring; 4. Sliding rod; 5. Rotating rod;

[0028] 6. First guide component; 61. First slide groove; 62. First limiting plate;

[0029] 7. Second guide component; 71. Second slide groove; 72. Second limiting plate;

[0030] 8. First roller; 9. Second roller; 10. Buffer component;

[0031] 100. Vacuum rehumidification turnover box; 110. Base plate; 120. Side wall. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0036] On the one hand, please refer to Figures 1 to 4 This embodiment provides a lifting device, including: a tray 1, an elastic element, and two lifting brackets 2. The tray 1 is arranged parallel to the bottom plate 110 of the vacuum rehumidification turnover box 100 and is used to support the tobacco blocks to be turned over. The two lifting brackets 2 are arranged parallel to each other along a first direction. The lifting bracket 2 includes a first support rod 21 and a second support rod 22. The midpoint of the length direction of the first support rod 21 and the midpoint of the length direction of the corresponding second support rod 22 are hinged to form a scissor structure, so that the lifting bracket 2 can drive the tray 1 to move along the depth direction of the vacuum rehumidification turnover box 100. The elastic element can undergo elastic deformation along a second direction and is connected between one end of the first support rod 21 near the bottom plate 110 of the vacuum rehumidification turnover box 100 and one end of the second support rod 22 near the bottom plate 110 of the vacuum rehumidification turnover box 100, so that the first support rod 21 and the second support rod 22 rotate around the hinge point, and the second direction is perpendicular to the first direction. With this configuration, the tray 1 is set parallel and spaced apart from the bottom plate 110 of the vacuum rehumidification turnover box 100, and a lifting bracket 2 is set between the tray 1 and the bottom plate 110 of the vacuum rehumidification turnover box 100, so that the tray 1 and the bottom plate 110 of the vacuum rehumidification turnover box 100 are rigidly connected, avoiding the problem of the tray 1 tilting due to uneven falling of tobacco blocks, which could cause the device to jam or the tobacco leaves to break.

[0037] Specifically, the elastic element is a tension spring 3. One end of the tension spring 3 is fixedly connected to a rotating rod 5 away from the pallet 1, and the other end of the tension spring 3 is fixedly connected to a sliding rod 4 away from the pallet 1. When the tobacco block falls onto the pallet 1, under the action of gravity, the first support rod 21 and the second support rod 22 rotate around the hinge point, causing the pallet 1 to descend. At the same time, the first support rod 21 and the second support rod 22 drive the tension spring 3 to extend. After the tobacco block is unloaded, under the action of elastic potential energy, the tension spring 3 contracts, and the first support rod 21 and the second support rod 22 rotate around the hinge point in opposite directions, thereby driving the pallet 1 to rise until it returns to its original position. The tension spring 3 makes the lifting and lowering process of the pallet 1 more stable, thereby ensuring the integrity of the tobacco block and reducing the breakage of the tobacco block.

[0038] Alternatively, please refer to Figure 1The lifting device also includes two sliding rods 4 and two rotating rods 5. The two rotating rods 5 are arranged parallel to each other along the depth direction of the vacuum rehumidification turnover box 100. The first end of the first support rod 21 is rotatably connected to the tray 1 through one of the two rotating rods 5. The first end of the second support rod 22 can be rotatably connected to the bottom plate 110 of the vacuum rehumidification turnover box 100 through the other of the two rotating rods 5. The two sliding rods 4 are arranged parallel to each other along the depth direction of the vacuum rehumidification turnover box 100. One of the two sliding rods 4 is slidably connected to the tray 1 along a second direction and rotatably connected between the second ends of the two second support rods 22. The other of the two sliding rods 4 is used to slidably connect to the bottom plate 110 of the vacuum rehumidification turnover box 100 along the second direction and rotatably connected between the second ends of the two first support rods 21. The arrangement of the sliding rods 4 and rotating rods 5 makes the lifting process more stable and ensures the consistency of the stroke of the two lifting supports 2 during the lifting process of the tray 1.

[0039] Specifically, two first ear seats are fixedly connected to the bottom of the tray 1. The two first ear seats are spaced apart along the first direction. The two ends of a rotating rod 5 near the tray 1 are rotatably connected to the two first ear seats in a corresponding manner. Two second ear seats are fixedly connected to the bottom plate 110 of the vacuum rehumidification turnover box 100. The two ends of a rotating rod 5 near the bottom plate 110 of the vacuum rehumidification turnover box 100 are rotatably connected to the two second ear seats in a corresponding manner.

[0040] Alternatively, please refer to Figure 1 The lifting device also includes two first guide members 6 and two second guide members 7. The two first guide members 6 are fixedly connected to the base plate 110 of the vacuum rehumidification turnover box 100, and the two second guide members 7 are fixedly connected to the bottom surface of the tray 1. Each of the two first guide members 6 is provided with a first sliding groove 61, and each of the two second guide members 7 is provided with a second sliding groove 71. Both the two first sliding grooves 61 and the two second sliding grooves 71 extend along a second direction. The two ends of the sliding rod 4, which is rotatably connected between the second ends of the two first support rods 21, are slidably connected to the two first sliding grooves 61 in a corresponding manner. Similarly, the two ends of the sliding rod 4, which is rotatably connected between the second ends of the two second support rods 22, are slidably connected to the two first sliding grooves 61 in a corresponding manner. This configuration, by adding the first guide members 6 and the second guide members 7 and the corresponding sliding groove design, prevents the sliding rod 4 from shifting or shaking during movement, thereby improving the stability and reliability of the entire lifting device.

[0041] Alternatively, please refer to Figure 3Two first rollers 8 are mounted on the sliding rod 4, which is away from the support plate 1. These two first rollers 8 are positioned one-to-one on opposite sides of the two first support rods 21, and roll relative to the corresponding first guide members 6 along their length. By mounting the first rollers 8 on the sliding rod 4 and having them roll along the first guide members 6, friction between the sliding rod 4 and the first groove 61 is reduced, improving operating efficiency and enhancing the stability and service life of the device.

[0042] Furthermore, the lifting device also includes four first limiting plates 62. Each first guide member 6 has two first limiting plates 62 connected to both ends, and the corresponding two first limiting plates 62 are arranged parallel to each other along the second direction. Each first roller 8 is disposed between the corresponding two first limiting plates 62. This arrangement limits the rolling stroke of the first roller 8, preventing the first roller 8 from derailing and causing excessive deformation of the tension spring 3, thus ensuring the stability and reliability of the lifting device.

[0043] Alternatively, please refer to Figure 4 Two second rollers 9 are mounted on the sliding rod 4 near the support plate 1, and the two second rollers 9 are respectively positioned on opposite sides of the two second support rods 22. The two second rollers 9 roll relative to the corresponding second guide members 7 along their length. By setting the second rollers 9 on the sliding rod 4 and making them roll along the second guide members 7, the friction between the sliding rod 4 and the second slide groove 71 is reduced, improving operating efficiency and enhancing the stability and service life of the device.

[0044] Furthermore, the lifting device also includes four second limiting plates 72. Each second guide member 7 has two second limiting plates 72 connected to both ends, and the corresponding two second limiting plates 72 are arranged parallel to each other along the second direction. Each second roller 9 is disposed between the corresponding two second limiting plates 72. This arrangement limits the rolling stroke of the second roller 9, preventing the second roller 9 from derailing and causing excessive deformation of the tension spring 3, thus ensuring the stability and reliability of the lifting device.

[0045] Alternatively, please refer to Figure 1 and Figure 2 The lifting device includes multiple tension springs 3, which are arranged parallel to each other along a first direction. This arrangement makes the force on a rotating rod 5 and a sliding rod 4 near the bottom plate 110 of the vacuum rehumidification turnover box 100 more even, thereby ensuring the consistency of the lifting stroke of the two lifting supports 2, avoiding swaying or tilting of the pallet 1 during the lifting process, and making the lifting device operate stably.

[0046] Optionally, the pallet 1 includes a body 11 and a support frame 12 arranged sequentially from top to bottom. The body 11 is used to support the cigarette blocks to be transferred. The body 11 is fixedly connected to the support frame 12. A load-bearing beam 13 is provided on the bottom surface of the support frame 12, and the load-bearing beam 13 extends along a first direction. The arrangement of the load-bearing beam 13 ensures the structural strength of the pallet 1 and guarantees the reliability of the lifting device.

[0047] Furthermore, the lifting device also includes a buffer 10. Along the depth direction of the vacuum dehumidification turnover box 100, the buffer 10 is positioned directly below the load-bearing beam 13. One end of the buffer 10 is fixedly connected to the bottom plate 110 of the vacuum dehumidification turnover box 100, and the other end of the buffer 10 can abut against the load-bearing beam 13. With this configuration, when the pallet 1 descends to the point where it abuts against the load-bearing beam 13, the buffer 10 can act as a buffer, absorbing the impact force when the pallet 1 descends to the bottom, preventing the pallet 1 and the bottom plate 110 from colliding and being damaged, or preventing the tension spring 3 from failing due to excessive impact force, thereby improving the service life of the device.

[0048] Specifically, the buffer 10 is a buffer spring. In other embodiments, the buffer 10 may also be a gas spring, a hydraulic damper, etc.

[0049] On the other hand, please refer to Figure 5 This embodiment provides a vacuum rehumidification turnover box 100, which includes a base plate 110, a side wall 120, and the aforementioned lifting device. The side wall 120 encloses a receiving space, and the lifting device is disposed within the receiving space. The lifting bracket 2 and the base plate 110 are movably connected. By providing a lifting device in the vacuum rehumidification turnover box 100, the pallet 1 moves relative to the side wall 120 along the depth direction of the vacuum rehumidification turnover box 100, effectively controlling the height difference of the falling tobacco blocks and reducing the breakage of the tobacco blocks.

[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A lifting device, characterized in that, include: A tray (1) is provided, which is parallel to the bottom plate (110) of the vacuum rehumidification turnover box (100), and is used to support the tobacco blocks to be turned over. Two lifting brackets (2) are arranged parallel to each other along a first direction. Each lifting bracket (2) includes a first support rod (21) and a second support rod (22). The midpoint of the length direction of the first support rod (21) and the midpoint of the length direction of the corresponding second support rod (22) are hinged to form a scissor structure, so that the lifting bracket (2) can drive the pallet (1) to move along the depth direction of the vacuum rehumidification turnover box (100). An elastic element is provided, which is capable of elastic deformation along a second direction, and the elastic element is connected between one end of the first support rod (21) near the bottom plate (110) of the vacuum rehumidification turnover box (100) and one end of the second support rod (22) near the bottom plate (110) of the vacuum rehumidification turnover box (100), so that the first support rod (21) and the second support rod (22) can rotate about the hinge point, and the second direction is perpendicular to the first direction.

2. The lifting device according to claim 1, characterized in that, The lifting device further includes two sliding rods (4) and two rotating rods (5). The two rotating rods (5) are arranged parallel to each other along the depth direction of the vacuum rehumidification turnover box (100). The first end of the first support rod (21) is rotatably connected to the tray (1) through one of the two rotating rods (5). The first end of the second support rod (22) can be rotatably connected to the bottom plate (110) of the vacuum rehumidification turnover box (100) through the other of the two rotating rods (5). The two sliding rods (4) are arranged parallel to each other along the depth direction of the vacuum rehumidification turnover box (100). One of the two sliding rods (4) is slidably connected to the tray (1) and rotatably connected between the second ends of the two second support rods (22). The other of the two sliding rods (4) is slidably connected to the bottom plate (110) of the vacuum rehumidification turnover box (100) and rotatably connected between the second ends of the two first support rods (21).

3. The lifting device according to claim 2, characterized in that, The lifting device further includes two first guide members (6) and two second guide members (7). The two first guide members (6) are fixedly connected to the bottom plate (110) of the vacuum rehumidification turnover box (100). The two second guide members (7) are fixedly connected to the bottom surface of the tray (1). Both first guide members (6) are provided with a first slide groove (61), and both second guide members (7) are provided with a second slide groove (71). Both first slide grooves (61) and two second slide grooves (71) extend along the second direction. The two ends of the sliding rod (4) rotatably connected between the second ends of the two first support rods (21) are slidably connected to the two first slide grooves (61) in a one-to-one correspondence. The two ends of the sliding rod (4) rotatably connected between the second ends of the two second support rods (22) are slidably connected to the two first slide grooves (61) in a one-to-one correspondence.

4. The lifting device according to claim 3, characterized in that, Two first rollers (8) are provided on the sliding rod (4) away from the tray (1), and the two first rollers (8) are respectively arranged on the side away from the two first support rods (21). The two first rollers (8) roll relative to the first guide (6) along the length direction of the corresponding first guide (6). And / or, two second rollers (9) are provided on the sliding rod (4) near the tray (1), and the two second rollers (9) are respectively arranged on the side away from each other of the two second support rods (22), and the two second rollers (9) roll relative to the second guide (7) along the length direction of the corresponding second guide (7).

5. The lifting device according to claim 4, characterized in that, The lifting device also includes four first limiting plates (62), each of the two ends of the first guide member (6) is connected to two first limiting plates (62), and the corresponding two first limiting plates (62) are arranged parallel to each other along the second direction, and each first roller (8) is arranged between the corresponding two first limiting plates (62). And / or, the lifting device further includes four second limiting plates (72), each of the two ends of the second guide (7) is connected to two second limiting plates (72), and the corresponding two second limiting plates (72) are arranged parallel to each other along the second direction, and each second roller (9) is arranged between the corresponding two second limiting plates (72).

6. The lifting device according to claim 2, characterized in that, The elastic element is a tension spring (3), one end of which is fixedly connected to the rotating rod (5) away from the support plate (1), and the other end of which is fixedly connected to the sliding rod (4) away from the support plate (1).

7. The lifting device according to claim 6, characterized in that, The lifting device includes a plurality of tension springs (3), which are arranged parallel to each other along the first direction.

8. The lifting device according to any one of claims 1-7, characterized in that, The pallet (1) includes a body (11) and a support frame (12) arranged sequentially from top to bottom. The body (11) is used to support the cigarette blocks to be rotated. The body (11) is fixedly connected to the support frame (12). A load-bearing beam (13) is provided on the bottom surface of the support frame (12). The load-bearing beam (13) extends along the first direction.

9. The lifting device according to claim 8, characterized in that, The lifting device also includes a buffer (10). Along the depth direction of the vacuum rehumidification turnover box (100), the buffer (10) is located directly below the load-bearing beam (13). One end of the buffer (10) is fixedly connected to the bottom plate (110) of the vacuum rehumidification turnover box (100), and the other end of the buffer (10) can abut against the load-bearing beam (13).

10. A vacuum rehumidification turnover box (100), characterized in that, The vacuum rehumidification turnover box (100) includes a base plate (110), a side wall (120) and a lifting device as described in any one of claims 1-9. The side wall (120) encloses a receiving space, the lifting device is disposed in the receiving space, and the lifting bracket (2) and the base plate (110) are movably connected.

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