A conveying device for a full material tray

Abstract

The present application discloses a conveying device for full trays, which includes two symmetrical platform conveyors, two full-tray conveyors symmetrically installed on a tray loading machine, and a handling unit. The handling unit transports the full trays from the full-tray conveyors to the platform conveyors. A clamping assembly is provided on the handling unit. When the full tray is located on the handling unit, the clamping assembly clamps the full tray. By providing the clamping assembly on the handling unit, the full tray is clamped on the handling unit, avoiding the phenomenon of the full tray tipping over caused by severe shaking at the moment when the handling starts, and improving the stability and safety of the full-tray conveying.

Description

Technical Field

[0001] This application relates to the technical field of cigarette production, and more specifically, to a conveying device for full trays. Background Art

[0002] During the production process of filter rods, the filter rods are sequentially loaded into trays by a tray loader. The full trays (referred to as full trays) move from the lower conveyor belt of the tray loader to the tray elevator. At this time, the elevator lifts upward, places the full tray on the platform conveyor belt, and after stacking to a specified number, the stacker transports the entire rack to the high-rise warehouse.

[0003] The principle of the existing full tray elevator is to use a crank-rocker mechanism in cooperation with a motor to convey the full tray. The motor directly drives the rotation of the driving shaft of the crank-rocker, and drives the rocker to drive the transport platform to move obliquely upward, thereby moving the tray to the platform conveyor belt.

[0004] There is no clamping mechanism on the transport platform. The full tray filled with filter rods is heavy, and the starting kinetic energy of the stepping motor is large. Without the buffer of flexible connection, it causes the full tray to shake violently at the moment of starting the handling, and the full tray often topples over, resulting in the spillage of filter rods. Even more seriously, after the full tray topples over, the elevator does not stop moving and continues to perform the crank-rocker movement, and the tray will be clamped in the gap and scrapped. After multiple clamping failures, the rocker is prone to deformation, resulting in the skew of the handling platform and more serious toppling. Summary of the Invention

[0005] This application provides a conveying device for full trays, and a clamping assembly is arranged on the handling part to clamp the full tray on the handling part, avoiding the phenomenon of the full tray toppling due to violent shaking at the moment of starting the handling, and improving the stability and safety of the full tray conveying.

[0006] This application provides a conveying device for full trays, including two symmetrical platform conveyor belts, two full tray conveyor belts symmetrically installed on the tray loader, and a handling part. The handling part transports the full tray from the full tray conveyor belt to the platform conveyor belt;

[0007] A clamping assembly is arranged on the handling part. When the full tray is located on the handling part, the clamping assembly clamps the full tray.

[0008] Preferably, the handling part includes a base, and the clamping assembly includes a stop pressing plate and a stop block arranged on the base;

[0009] Both ends of the upper end surface of the base protrude. The stop block is hinged in the middle of the first protrusion at the first end of the base, and a first return mechanism is arranged between the stop block and the first protrusion;

[0010] The first end of the stop pressing plate is hinged at the root of the second protrusion at the second end of the base;

[0011] When the handling part is in the no-load state, the second end of the stop pressing plate prevents the stop block from rotating towards the second protrusion; when the full material tray is located on the handling part, the stop block and the second protrusion clamp the full material tray.

[0012] Preferably, a second return mechanism is provided between the stop pressing plate and the upper end surface of the base.

[0013] Preferably, a third protrusion facing the second protrusion is provided in the middle of the first protrusion;

[0014] The stop block is L-shaped, and the end of the third protrusion is hinged to the free end of the short side of the L-shape;

[0015] When the handling part is in the no-load state, the short side is parallel to the first protrusion, the long side of the L-shape is parallel to the third protrusion, the L-shape is buckled on the space formed by the upper part of the first protrusion and the third protrusion, and the second end of the stop pressing plate abuts against the outer side surface of the short side.

[0016] Preferably, it further includes a four-bar mechanism and a driving mechanism;

[0017] The first end of the four-bar mechanism is hinged to the handling part, the second end of the four-bar mechanism is hinged to the driving mechanism, and the driving mechanism guides the movement of the four-bar mechanism.

[0018] Preferably, the four-bar mechanism includes a first rod and a second rod in the upper layer and a third rod and a fourth rod in the lower layer. The first ends of the first rod and the second rod are respectively hinged to the second end of the base, and the third rod and the fourth rod are respectively hinged to the bottom surface of the middle part of the base.

[0019] Preferably, the first rod and the third rod are located on the first side of the base, the middle parts of the first rod and the third rod are connected by a fifth rod, and the fifth rod is respectively hinged to the first rod and the third rod;

[0020] The second rod and the fourth rod are located on the second side of the base, the middle parts of the second rod and the fourth rod are connected by a sixth rod, and the sixth rod is respectively hinged to the second rod and the fourth rod.

[0021] Preferably, the driving mechanism includes a driving part and a transmission part;

[0022] The driving part includes four symmetrically arranged drivers. The output end of the driver is fixedly connected to a first gear, and two second gears are provided inside the fixed frame of the platform conveyor belt;

[0023] The transmission part includes four chains. The chains are wrapped between the first gears and the second gears corresponding in position. The second ends of the first rod, the second rod, the third rod and the fourth rod are respectively hinged to the corresponding chains through adapters.

[0024] Preferably, the driver of the handling part is a servo motor.

[0025] Preferably, when the handling part is in an unloaded state, at least a part of the entire first protrusion and the stop pressing plate is located between two full-material tray conveyor belts.

[0026] Preferably, the second return mechanism includes a plurality of springs, and two ends of each spring are respectively fixed on the upper end surface of the base and the lower end surface of the stop pressing plate.

[0027] Other features and advantages of the present application will become clear from the following detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings. Description of the Drawings

[0028] The drawings incorporated in and forming a part of this specification illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0029] Figure 1 The overall structure diagram of the full-material tray conveying device provided by the present application;

[0030] Figure 2 The side view of the full-material tray conveying device provided by the present application;

[0031] Figure 3 The view of the handling part of the present application at a first angle;

[0032] Figure 4 The view of the handling part of the present application at a second angle. Detailed Embodiments

[0033] Now, various exemplary embodiments of the present application will be described in detail with reference to the accompanying drawings. It should be noted that: Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended as a limitation on the present application or its application or use.

[0035] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the specification.

[0036] In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0037] As Figure 1 and 2As shown in the figure, the conveying device for full trays includes two symmetrical platform conveyor belts 70, two full-tray conveyor belts 20 symmetrically installed on the tray loading machine, and a handling unit 30. The handling unit 30 transports the full tray 10 from the full-tray conveyor belt 20 to the platform conveyor belt 70 under the drive of a driver.

[0038] The fixing frames of the two full-tray conveyor belts 20 are fixed on the first bottom plate 21, and the full tray 10 moves towards the handling unit 30 under the drive of the two full-tray conveyor belts 20.

[0039] The handling unit 30 is provided with a clamping assembly. When the full tray 10 is located on the handling unit 30, the clamping assembly clamps the full tray 10 to prevent the tray from swinging, thus eliminating the problem of the full tray tipping over.

[0040] Specifically, as Figure 3 and 4 shown, the handling unit includes a base 31, and the clamping assembly includes a stop pressing plate 33 and a stop block 34 arranged on the base 31. At both ends of the upper end surface of the base 31, there are a first protrusion 37 and a second protrusion 36 respectively. The stop block 34 is hinged in the middle of the first protrusion 37 at the first end of the base 31, and a first return mechanism is provided between the stop block 34 and the first protrusion 37.

[0041] The first end of the stop pressing plate 33 is hinged at the root of the second protrusion 36 at the second end of the base 31. In the state where the handling unit is unloaded, the second end of the stop pressing plate 33 prevents the stop block 34 from rotating towards the second protrusion 36; when the full tray 10 is located on the handling unit 30, the stop block 34 and the second protrusion 36 clamp the full tray.

[0042] Specifically, a third protrusion 38 facing the second protrusion 36 is provided in the middle of the first protrusion 37. The stop block 34 is L-shaped, and the end of the third protrusion 38 is hinged to the free end of the short side of the L-shape. In the state where the handling unit is unloaded, the short side is parallel to the first protrusion 37, the long side of the L-shape is parallel to the third protrusion 38, and the L-shape is buckled on the space formed by the upper part of the first protrusion 37 and the third protrusion 38. At this time, the second end of the stop pressing plate 33 abuts against the outer side surface of the short side to prevent the stop block 34 from rotating towards the second protrusion 36.

[0043] As an embodiment, a second return mechanism is provided between the stop pressing plate 33 and the upper end surface of the base 31. As an embodiment, the second return mechanism includes a plurality of springs 39, and both ends of the springs 39 are respectively fixed on the upper end surface of the base 31 and the lower end surface of the stop pressing plate 33.

[0044] As Figure 1 shown, in the state where the handling unit 30 is unloaded, at least a part of the entire first protrusion 37 and the stop pressing plate 33 is located between the two full-tray conveyor belts 20.

[0045] When the full material tray 10 moves between the first protrusion 37 and the second protrusion 36 driven by the full material tray conveyor belt 20, under the action of gravity, the full material tray 10 resists the elastic force of the spring 39 and presses down the stop pressing plate 33. At this time, the resistance of the stop pressing plate 33 to the stop block 34 disappears, and the stop block 34 rotates towards the second protrusion 36 under the push of the first return mechanism. When the long side fits on the full material tray 10, the stop block 34 and the second protrusion 36 clamp the full material tray 10. At this time, both ends of the full material tray 10 protrude from both ends of the base 31. When the handling part drives the full material tray 10 to reach the platform conveyor belt 70, both ends of the full material tray 10 are supported by the platform conveyor belt 70, and the pressure on the stop pressing plate 33 is released. The stop pressing plate 33 is lifted under the action of the second return mechanism, pushing the stop block 34 to rotate towards the first protrusion 37. Finally, the second end of the stop pressing plate 33 abuts against the short side of the stop block 34, waiting for the arrival of the next full material tray 10. Thus, the handling part prevents the full material tray from shaking and tipping over by automatically clamping the full material tray.

[0046] Preferably, the conveying device further includes a four-bar mechanism 40 and a driving mechanism.

[0047] As Figure 1 and 2 shown, the first end of the four-bar mechanism 40 is hinged to the handling part 30, the second end of the four-bar mechanism 40 is hinged to the driving mechanism, and the driving mechanism guides the four-bar mechanism 40 to drive the handling part 30 to move.

[0048] Specifically, the four-bar mechanism includes a first rod 42 and a second rod 45 in the upper layer and a third rod 43 and a fourth rod 44 in the lower layer. Combining Figure 3 , at both ends outside the second protrusion, U-shaped grooves 35 are respectively provided. The first ends of the first rod 42 and the second rod 45 are respectively hinged to the second end of the base through the shafts in the U-shaped grooves. At both ends of the bottom surface in the middle of the base 31, supports 32 extending downward are respectively provided, and the third rod 43 and the fourth rod 44 are respectively hinged to the supports 32.

[0049] The first rod 42 and the third rod 43 are located on the first side of the base 31. The middle parts of the first rod 42 and the third rod 43 are connected by a fifth rod 41, and the fifth rod 41 is respectively hinged to the first rod 42 and the third rod 43, so that the first rod 42 and the third rod 43 move relative to each other with limitations.

[0050] The second rod 45 and the fourth rod 44 are located on the second side of the base 31. The middle parts of the second rod 45 and the fourth rod 44 are connected by a sixth rod, and the sixth rod is respectively hinged to the second rod 45 and the fourth rod 44, so that the second rod 45 and the fourth rod 44 move relative to each other with limitations.

[0051] As an embodiment, as Figure 1 and 2As shown in the figure, the driving mechanism includes a driving part and a transmission part. The driving part includes four symmetrically arranged drivers, which are distributed at the four corners of the second bottom plate 61, and the output ends of the drivers are fixedly connected to the first gears 62. There are two second gears 71 provided inside the fixing frame of the platform conveyor belt 70.

[0052] The transmission part includes four chains 50. The chains 50 are wrapped between the first gears 62 and the second gears 71 at corresponding positions. The second ends of the first rod 42, the second rod 45, the third rod 43 and the fourth rod 44 are respectively hinged to the corresponding chains 50 through adapters 51. The adapter 51 is fixedly connected to a specified position on the chain 50, and the second ends of the four-bar mechanism move with the adapter under the drive of the chain 50. The chain-type transmission part makes the handling process flexible and prevents the potential energy generated at the moment of starting from being too large, resulting in the full material tray swinging back and forth.

[0053] Preferably, the driver is a servo motor 60. The servo motor can control the motor to start and stop slowly, avoiding the shaking of the full material tray caused by the sudden change of speed of the handling part.

[0054] It should be noted that the rotational speeds of the servo motors of the first rod and the second rod on the upper layer are the same, and the rotational speeds of the servo motors of the third rod and the fourth rod on the lower layer are the same. However, the rotational speeds of the servo motors on the upper layer and the lower layer are different, and the rotational speed difference between the two makes the base 31 always maintain a horizontal state during the movement process.

[0055] The full material tray 10 is transported from the full material tray conveyor belt 20 of the loading machine to above the handling part 30, and the handling part 30 clamps the full material tray 10 by using a clamping mechanism. The equipment issues a handling instruction, the servo motor 60 drives the chain 50 to rotate, and the four-bar mechanism 40 hinged on the chain 50 starts to work with the rotation of the chain 50, driving the handling part 30 to move upward and forward in an arc. After the full material tray 10 is transported onto the platform conveyor belt 70, since the full material tray 10 is supported by the platform conveyor belt 70 and is released by the clamping mechanism, then the full material tray 10 is transported downstream along with the platform conveyor belt 70. After that, the servo motor 60 runs in the reverse direction, driving the four-bar mechanism and the handling part back to the starting position, waiting to receive the next full material tray 10.

[0056] In this application, the combination of the servo motor and the chain drive improves the flexibility of the equipment. The slow start and stop of the servo motor can be controlled by adjusting the program. At the same time, the gap between the chain and the gear can avoid the swaying of the full material tray caused by excessive kinetic energy when the handling part starts and stops. And in this application, when mechanical jamming occurs, the servo motor can automatically stop running, thereby protecting the safety of people and objects, and having an overload protection function.

[0057] Although some specific embodiments of the present application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A conveying device for a full material tray, characterized in that, It includes two symmetrical platform conveyor belts, two full tray conveyor belts symmetrically installed on the tray loading machine, and a transporting part, wherein the transporting part transports the full trays from the full tray conveyor belts to the platform conveyor belts; The conveying part is provided with a clamping assembly, and when the full material tray is located on the conveying part, the clamping assembly clamps the full material tray; Wherein, the transport part comprises a base, and the clamping assembly comprises a stop plate and a stop block arranged on the base; The two ends of the upper end surface of the base are respectively protruded, the stop block is hinged to the middle part of the first protrusion of the first end of the base, and a first return mechanism is provided between the stop block and the first protrusion; The first end of the stop pressure plate is hinged to the root of the second protrusion at the second end of the base; When the transport portion is unloaded, the second end of the stop plate prevents the stop block from rotating toward the second protrusion; when the full tray is located on the transport portion, the stop block and the second protrusion clamp the full tray; A second return mechanism is provided between the stop pressure plate and the upper end surface of the base. The second return mechanism comprises a plurality of springs, and two ends of the springs are respectively fixed on the upper end surface of the base and the lower end surface of the stop pressure plate.

2. The conveying device for the full material tray according to claim 1, characterized in that A third protrusion is provided in the middle of the first protrusion and faces the second protrusion; The stop block is L-shaped, and the end of the third protrusion is hinged to the free end of the short side of the L-shape; When the transporting portion is unloaded, the short side is parallel to the first protrusion, the long side of the L-shape is parallel to the third protrusion, the L-shape is buckled in the space formed by the upper part of the first protrusion and the third protrusion, and the second end of the stop pressure plate abuts against the outer surface of the short side.

3. The conveying device for the full material tray according to claim 1, characterized in that, It also includes a four-bar mechanism and a driving mechanism; The first end of the four-bar mechanism is hinged to the transport portion, the second end of the four-bar mechanism is hinged to the driving mechanism, and the driving mechanism guides the four-bar mechanism to move.

4. The conveying device for the full material tray according to claim 3, characterized in that, The four-bar mechanism includes a first bar and a second bar on an upper layer and a third bar and a fourth bar on a lower layer, wherein the first ends of the first bar and the second bar are respectively hinged to the second end of the base, and the third bar and the fourth bar are respectively hinged to the bottom surface of the middle part of the base.

5. The conveying device for the full material tray according to claim 4, characterized in that, The first rod and the third rod are located on a first side of the base, the middle portion of the first rod and the middle portion of the third rod are connected via a fifth rod, and the fifth rod is hinged to the first rod and the third rod respectively; The second rod and the fourth rod are located on the second side of the base, the middle part of the second rod and the middle part of the fourth rod are connected through a sixth rod, and the sixth rod is hinged to the second rod and the fourth rod respectively.

6. The conveying device for a full material tray according to claim 1, characterized in that, The driver of the conveying part is a servo motor.

7. The conveying device for a full material tray according to claim 1, characterized in that, When the transporting portion is unloaded, the entire first protrusion and at least a portion of the stop plate are located between the two full tray conveyor belts.

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