A lifting conveyor

Abstract

This utility model belongs to the field of material conveying technology and discloses a lifting conveyor. The lifting conveyor includes a base, a lifting mechanism, a receiving mechanism, a translation mechanism, and a counterweight assembly. The lifting mechanism includes a driving member and a first lead screw. The first lead screw is rotatably mounted on the base in a vertical direction. The driving member is located at the end of the first lead screw to drive the first lead screw to rotate. The receiving mechanism includes a trough and a connecting member. The connecting member has a first threaded hole and is sleeved on the first lead screw through the first threaded hole to move vertically with the rotation of the first lead screw. The trough is fixed to the connecting member. The translation mechanism includes a second lead screw and a counterweight seat. The second lead screw is rotatably mounted on the base in a horizontal direction. The counterweight seat has a second threaded hole that cooperates with the second lead screw to move horizontally with the rotation of the second lead screw. The second lead screw cooperates with a gear pair at the end of the first lead screw. The counterweight assembly includes a counterweight that is detachably mounted on the counterweight seat.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, and in particular to a lifting conveyor. Background Technology

[0002] In the intelligent production system of the tobacco industry, the material lifting and conveying mechanism is the core equipment for realizing the full automation of tobacco leaf storage, tobacco processing, and cigarette packaging. From the vertical transport of tobacco bags from the tobacco aging warehouse to the pre-treatment workshop, to the height transfer of tobacco shreds between cutting and drying equipment in the tobacco processing line, and then to the efficient transfer of finished cigarette boxes from the packaging line to the automated warehouse, this mechanism ensures the continuity of the production process and the efficiency of material flow through precise lifting control. Its operational stability directly affects product quality and production safety.

[0003] However, existing tobacco-specific material lifting and conveying mechanisms have significant shortcomings when handling high-lift conditions. Because tobacco leaves and shredded tobacco have low bulk density but large volume, and finished tobacco boxes vary in size and can weigh tens of kilograms, when the lifting mechanism reaches a higher working height, the entire system's center of gravity shifts upwards, causing an exponential decrease in structural stability. During frequent batch material transfers in the tobacco processing workshop, the lifting mechanism under heavy load is prone to tipping over due to its excessively high center of gravity. This not only causes material spillage and equipment damage, interrupting the production process, but also potentially leads to safety accidents, posing a serious threat to the personal safety of operators and the clean production environment of the workshop. Utility Model Content

[0004] The purpose of this invention is to provide a lifting conveyor to solve the problem in the prior art where, when the lifting mechanism is raised to a higher working height, the center of gravity of the entire system shifts upward, resulting in an exponential decrease in structural stability.

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

[0006] A lifting conveyor is provided, comprising:

[0007] Base;

[0008] A lifting mechanism, comprising a driving member and a first lead screw, wherein the first lead screw is rotatably mounted on the base in a vertical direction, and the driving member is located at the end of the first lead screw to drive the first lead screw to rotate;

[0009] The receiving mechanism includes a material trough and a connecting member. The connecting member has a first threaded hole and is sleeved on the first lead screw through the first threaded hole so as to move along the vertical direction as the first lead screw rotates. The material trough is fixed to the connecting member.

[0010] A translation mechanism, comprising a second lead screw and a counterweight, wherein the second lead screw is rotatably mounted on the base in a horizontal direction, and the counterweight has a second threaded hole that engages with the second lead screw to move in the horizontal direction as the second lead screw rotates; the second lead screw engages with a gear pair at the end of the first lead screw.

[0011] A counterweight assembly, comprising a counterweight component, wherein the counterweight component is detachably mounted on the counterweight base.

[0012] As an optional technical solution for the lifting conveyor, the lifting mechanism further includes a hollow column, which is sleeved outside the drive member and the first lead screw. The hollow column has a clearance hole along the vertical direction to avoid the movement of the connecting member and limit the movement path of the connecting member.

[0013] As an optional technical solution for the lifting conveyor, the lifting mechanism further includes a guide rod, which extends along the vertical direction and is disposed inside the hollow column. The connector has a first through hole, and the connector is sleeved on the guide rod through the first through hole to restrict the movement path of the connector.

[0014] As an optional technical solution for the lifting conveyor, the lifting mechanism further includes a first bevel gear, and the translation mechanism further includes a second bevel gear. The first bevel gear is disposed at the bottom of the first lead screw, and the second bevel gear is disposed at the end of the second lead screw. The first bevel gear and the second bevel gear can mesh to achieve transmission cooperation.

[0015] As an optional technical solution for the lifting conveyor, the counterweight is a counterweight ring, and the counterweight assembly also includes a first limiting rod, which is arranged vertically on the counterweight seat. The counterweight ring is multiple and can be detachably sleeved on the first limiting rod.

[0016] As an optional technical solution for the lifting conveyor, the counterweight assembly further includes a second limiting rod, wherein there are multiple second limiting rods spaced apart on the base, and the counterweight rings are multiple and can be detachably sleeved on the second limiting rods.

[0017] As an optional technical solution for the lifting conveyor, the material trough is set as a semi-circle and closed at one end. Two material troughs are symmetrically arranged around the central axis of the first lead screw, and the projection of the center of the two material troughs coincides with the projection of the central axis of the first lead screw.

[0018] As an optional technical solution for the lifting conveyor, the receiving mechanism further includes a rotating shaft and an angle motor. The connecting member has a second through hole, and the rotating shaft is rotatably disposed in the second through hole. One end of the rotating shaft is connected to the closed end of the material trough, and the other end is connected to the angle motor. The angle motor can drive the material trough to rotate around the axis of the rotating shaft.

[0019] As an optional technical solution for the lifting conveyor, the receiving mechanism further includes a pushing block and a gear. The pushing block includes an abutting part and a first connecting part. The abutting part abuts against the bottom of the material trough. The first connecting part is located on the side wall of the abutting part. The gear is rotatably located at the bottom of the first connecting part. A toothed block extends from the inner side of the material trough. The gear and the toothed block can mesh to drive the abutting part to move.

[0020] As an optional technical solution for the lifting conveyor, the receiving mechanism further includes a limiting pulley, and the pushing block further includes a second connecting part. The second connecting part is disposed on the side wall of the abutting part, and the limiting pulley is rotatably disposed on the second connecting part and abuts against the side wall of the material trough.

[0021] The beneficial effects of this utility model are:

[0022] This application discloses a lifting conveyor, including a base, a lifting mechanism, a receiving mechanism, a translation mechanism, and a counterweight assembly. The lifting mechanism includes a driving member and a first lead screw. The first lead screw is rotatably mounted on the base in a vertical direction. The driving member is located at the end of the first lead screw to drive the first lead screw to rotate. The receiving mechanism includes a trough and a connecting member. The connecting member has a first threaded hole and is sleeved on the first lead screw through the first threaded hole to move vertically as the first lead screw rotates. The trough is fixed to the connecting member. The translation mechanism includes a second lead screw and a counterweight. The second lead screw is rotatably mounted on the base in a horizontal direction. The counterweight has a second threaded hole that engages with the second lead screw to move horizontally as the second lead screw rotates. The second lead screw engages with a gear pair at the end of the first lead screw. The counterweight assembly includes a counterweight that is detachably mounted on the counterweight assembly. Through the gear pair between the first lead screw and the second lead screw, when the first lead screw rotates and drives the trough to rise, the second lead screw can be driven to rotate by the first lead screw, thereby driving the counterweight seat and counterweight to move away from the first lead screw. The upward displacement of the center of gravity of the lifting conveyor is reduced, thereby increasing the stability of the lifting conveyor and reducing the probability of the lifting conveyor tipping over. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0024] Figure 1 This is a first schematic diagram of a portion of the structure of the lifting conveyor provided in this embodiment of the utility model;

[0025] Figure 2 This is a first-view isometric view of the lifting conveyor provided in this embodiment of the utility model;

[0026] Figure 3 This is a second-view isometric view of the lifting conveyor provided in this embodiment of the utility model;

[0027] Figure 4 This is a second schematic diagram of a portion of the structure of the lifting conveyor provided in this embodiment of the utility model;

[0028] Figure 5 This is a third schematic diagram of a portion of the structure of the lifting conveyor provided in this embodiment of the utility model;

[0029] Figure 6 This is a fourth schematic diagram of a partial structure of the lifting conveyor provided in this embodiment of the utility model.

[0030] In the picture:

[0031] 10. Base;

[0032] 20. Lifting mechanism; 21. Driving component; 22. First lead screw; 23. Hollow column; 231. Clearance hole; 24. Guide rod; 25. First bevel gear;

[0033] 30. Receiving mechanism; 31. Material trough; 311. Tooth block; 32. Connecting part; 33. Angle motor; 34. Pushing block; 341. Abutting part; 342. First connecting part; 343. Second connecting part; 35. Gear; 36. Limiting pulley; 37. Drive motor;

[0034] 40. Translation mechanism; 41. Second lead screw; 42. Counterweight; 43. Second bevel gear;

[0035] 50. Counterweight assembly; 51. Counterweight component; 52. First limit rod; 53. Second limit rod. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] Existing technologies for lifting and conveying tobacco materials have significant drawbacks when handling high-lifting conditions. Because tobacco leaves and shredded tobacco have low bulk density but large volume, and finished tobacco boxes vary in size and can weigh tens of kilograms, when the lifting mechanism reaches a higher working height, the entire system's center of gravity shifts upwards, causing an exponential decrease in structural stability. During frequent batch material transfers in the tobacco processing workshop, the lifting mechanism under heavy load is highly susceptible to tipping over due to its excessively high center of gravity. This can not only cause material spillage and equipment damage, interrupting production processes, but also potentially lead to safety accidents, posing a serious threat to the personal safety of operators and the clean production environment of the workshop.

[0041] To address the aforementioned problems, this embodiment provides a lifting conveyor, see reference. Figures 1-5 The lifting conveyor includes a base 10, a lifting mechanism 20, a receiving mechanism 30, a translation mechanism 40, and a counterweight assembly 50.

[0042] Furthermore, the base 10 is configured as a solid cylinder. In other embodiments, the base 10 may also be configured as a cuboid or a polygonal prism, which is not limited here.

[0043] Furthermore, the lifting mechanism 20 includes a driving member 21 and a first lead screw 22. The first lead screw 22 is rotatably mounted on the base 10 in a vertical direction, and the driving member 21 is located at the end of the first lead screw 22 to drive the first lead screw 22 to rotate. Specifically, a shaft hole is provided at the geometric center of the base 10, and the end of the first lead screw 22 is rotatably mounted in the shaft hole. Specifically, the driving member 21 is configured as a rotary motor and located at the top of the first lead screw 22 to drive the first lead screw 22 to rotate.

[0044] Further, the receiving mechanism 30 includes a material trough 31 and a connecting member 32. The connecting member 32 has a first threaded hole and is sleeved on the first lead screw 22 through the first threaded hole, so as to move vertically with the rotation of the first lead screw 22. The material trough 31 is fixed to the connecting member 32. In other embodiments, a hydraulic push rod or an electric push rod can be used instead of the driving member 21 and the first lead screw 22 to drive the material trough 31 to move vertically. In this embodiment, the material trough 31 is set as a semi-circle and closed at one end. Two material troughs 31 are symmetrically arranged around the central axis of the first lead screw 22, and the projection of the center of the two material troughs 31 coincides with the projection of the central axis of the first lead screw 22.

[0045] Further, the translation mechanism 40 includes a second lead screw 41 and a counterweight 42. The second lead screw 41 is rotatably mounted on the base 10 in the horizontal direction. The counterweight 42 has a second threaded hole that engages with the second lead screw 41, allowing it to move horizontally as the second lead screw 41 rotates. The second lead screw 41 engages with a gear pair at the end of the first lead screw 22. Specifically, the lifting mechanism 20 also includes a first bevel gear 25, and the translation mechanism 40 also includes a second bevel gear 43. The first bevel gear 25 is located at the bottom of the first lead screw 22, and the second bevel gear 43 is located at the end of the second lead screw 41. The first bevel gear 25 and the second bevel gear 43 can mesh to achieve transmission. In other embodiments, a rotary motor can also be provided at the end of the second lead screw 41, allowing the rotary motor and the drive component 21 to communicate and achieve synchronous adjustment. For details, please refer to [reference needed]. Figure 3 The base 10 is provided with a clearance groove at the position corresponding to the second bevel gear 43 to avoid the installation position of the second bevel gear 43, so as to facilitate the meshing of the first bevel gear 25 and the second bevel gear 43.

[0046] Further, see Figures 2-4 The counterweight assembly 50 includes a counterweight 51, which is detachably mounted on the counterweight base 42. Specifically, the counterweight 51 is a counterweight ring. The counterweight assembly 50 also includes a first limiting rod 52, which is vertically positioned on the counterweight base 42. Multiple counterweight rings are detachably mounted on the first limiting rod 52. Furthermore, the counterweight assembly 50 also includes multiple second limiting rods 53, which are spaced apart on the base 10. Multiple counterweight rings are detachably mounted on the second limiting rods 53. When the material is heavy, multiple counterweight rings can be mounted on the second limiting rods 53 to increase the weight of the base 10 and reduce the likelihood of the lifting conveyor tipping over.

[0047] Through the gear pair cooperation between the first lead screw 22 and the second lead screw 41, when the first lead screw 22 rotates and drives the material trough 31 to rise, the second lead screw 41 can be driven to rotate by the first lead screw 22, thereby driving the counterweight seat 42 and the counterweight 51 to move away from the first lead screw 22. The upward displacement of the center of gravity of the lifting conveyor is reduced, thereby increasing the stability of the lifting conveyor and reducing the probability of the lifting conveyor tipping over.

[0048] Furthermore, the lifting mechanism 20 also includes a hollow column 23, which is sleeved outside the drive member 21 and the first lead screw 22. The hollow column 23 has a clearance hole 231 in the vertical direction to avoid the movement of the connecting member 32 and restrict the movement path of the connecting member 32. Furthermore, the lifting mechanism 20 also includes a guide rod 24, which extends vertically and is disposed inside the hollow column 23. The connecting member 32 has a first through hole, and the connecting member 32 is sleeved on the guide rod 24 through the first through hole to restrict the movement path of the connecting member 32. Specifically, the hollow column 23 can be glued or screwed to the base 10.

[0049] In practical applications, most lifting conveyors adopt a fixed structural design. This means that even when the lifting conveyor is idle, it still occupies production space, which is not conducive to efficient site planning and utilization. Further, see... Figure 3 The receiving mechanism 30 also includes a rotating shaft and an angle motor 33. The connecting member 32 has a second through hole, and the rotating shaft is rotatably disposed in the second through hole. One end of the rotating shaft is connected to the closed end of the material trough 31, and the other end is connected to the angle motor 33. The angle motor 33 can drive the material trough 31 to rotate around the axis of the rotating shaft. When the lifting conveyor is needed, the material trough 31 can rotate away from the hollow column 23 for easy loading and unloading; when the lifting conveyor is not needed, the material trough 31 can rotate closer to the hollow column 23 for easy storage.

[0050] Further, see Figure 5 and Figure 6The receiving mechanism 30 also includes a pushing block 34 and a gear 35. The pushing block 34 includes an abutment portion 341 and a first connecting portion 342. The abutment portion 341 abuts against the bottom of the material trough 31 to push the material. The first connecting portion 342 is disposed on the side wall of the abutment portion 341. The gear 35 is rotatably disposed at the bottom of the first connecting portion 342. A toothed block 311 extends from the inner side of the material trough 31. The gear 35 and the toothed block 311 can mesh to drive the abutment portion 341 to move. Specifically, the receiving mechanism 30 also includes a drive motor 37. The drive motor is disposed on the top of the first connecting portion 342 and is fixedly engaged with the central shaft of the gear 35 to drive the gear 35 to rotate, thereby driving the abutment portion 341 to move along the extension direction of the material trough 31 to push the material out from the open end of the material trough 31.

[0051] Further, see Figure 5 and Figure 6 The receiving mechanism 30 also includes a limiting pulley 36, and the pushing block 34 also includes a second connecting part 343. The second connecting part 343 is disposed on the side wall of the abutting part 341, and the limiting pulley 36 is rotatably disposed on the second connecting part 343 and abuts against the side wall of the material trough 31. Specifically, the bottom of the material trough 31 is provided with an arc-shaped relief groove, the second connecting part 343 can extend out of the arc-shaped relief groove, and four limiting pulleys 36 are provided, all of which are rotatably disposed on the second connecting part 343 and abut against the inner and outer side walls on both sides of the material trough 31 respectively, so as to limit the position of the abutting part 341 and prevent the position of the abutting part 341 from shifting.

[0052] 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 conveyor, characterized in that, include: Base (10); The lifting mechanism (20) includes a driving member (21) and a first lead screw (22). The first lead screw (22) is rotatably disposed on the base (10) in the vertical direction. The driving member (21) is disposed at the end of the first lead screw (22) to drive the first lead screw (22) to rotate. The receiving mechanism (30) includes a material trough (31) and a connecting member (32). The connecting member (32) has a first threaded hole. The connecting member (32) is sleeved on the first lead screw (22) through the first threaded hole so as to move along the vertical direction as the first lead screw (22) rotates. The material trough (31) is fixed to the connecting member (32). Translation mechanism (40) includes a second lead screw (41) and a counterweight (42). The second lead screw (41) is rotatably mounted on the base (10) in the horizontal direction. The counterweight (42) has a second threaded hole that engages with the second lead screw (41) to move in the horizontal direction as the second lead screw (41) rotates. The second lead screw (41) engages with the gear pair at the end of the first lead screw (22). The counterweight assembly (50) includes a counterweight (51) which is detachably mounted on the counterweight base (42).

2. The lifting conveyor according to claim 1, characterized in that, The lifting mechanism (20) also includes a hollow column (23), which is sleeved on the outside of the drive member (21) and the first lead screw (22). The hollow column (23) has a clearance hole (231) along the vertical direction to avoid the movement of the connector (32) and restrict the movement path of the connector (32).

3. The lifting conveyor according to claim 2, characterized in that, The lifting mechanism (20) also includes a guide rod (24), which extends along the vertical direction and is disposed inside the hollow column (23). The connector (32) has a first through hole, and the connector (32) is sleeved on the guide rod (24) through the first through hole to restrict the movement path of the connector (32).

4. The lifting conveyor according to claim 1, characterized in that, The lifting mechanism (20) further includes a first bevel gear (25), and the translation mechanism (40) further includes a second bevel gear (43). The first bevel gear (25) is located at the bottom of the first lead screw (22), and the second bevel gear (43) is located at the end of the second lead screw (41). The first bevel gear (25) and the second bevel gear (43) can mesh to achieve transmission cooperation.

5. The lifting conveyor according to claim 1, characterized in that, The counterweight (51) is a counterweight ring, and the counterweight assembly (50) also includes a first limiting rod (52). The first limiting rod (52) is arranged vertically on the counterweight seat (42), and the counterweight ring is multiple and can be detachably sleeved on the first limiting rod (52).

6. The lifting conveyor according to claim 5, characterized in that, The counterweight assembly (50) further includes a second limiting rod (53), there are multiple second limiting rods (53) and they are spaced apart on the base (10), and there are multiple counterweight rings that can be detachably sleeved on the second limiting rods (53).

7. The lifting conveyor according to any one of claims 1-6, characterized in that, The material trough (31) is set as a semi-circle and closed at one end. There are two material troughs (31) symmetrically arranged around the central axis of the first lead screw (22), and the projection of the center of the two material troughs (31) coincides with the projection of the central axis of the first lead screw (22).

8. The lifting conveyor according to claim 7, characterized in that, The receiving mechanism (30) also includes a rotating shaft and an angle motor (33). The connecting member (32) has a second through hole. The rotating shaft is rotatably disposed in the second through hole. One end of the rotating shaft is connected to the closed end of the material trough (31), and the other end is connected to the angle motor (33). The angle motor (33) can drive the material trough (31) to rotate around the axis of the rotating shaft.

9. The lifting conveyor according to any one of claims 1-6, characterized in that, The receiving mechanism (30) further includes a pusher block (34) and a gear (35). The pusher block (34) includes an abutment part (341) and a first connecting part (342). The abutment part (341) abuts against the bottom of the material trough (31). The first connecting part (342) is disposed on the side wall of the abutment part (341). The gear (35) is rotatably disposed at the bottom of the first connecting part (342). A toothed block (311) extends from the inner side of the material trough (31). The gear (35) and the toothed block (311) can mesh to drive the abutment part (341) to move.

10. The lifting conveyor according to claim 9, characterized in that, The receiving mechanism (30) further includes a limiting pulley (36), and the pushing block (34) further includes a second connecting part (343). The second connecting part (343) is disposed on the side wall of the abutting part (341), and the limiting pulley (36) is rotatably disposed on the second connecting part (343) and abuts against the side wall of the material trough (31).

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