Tobacco leaf compacting device

Abstract

The utility model belongs to the technical field of tobacco leaf packaging, and particularly relates to a tobacco leaf compacting device. A tobacco leaf compacting device comprises a frame, wherein the frame is provided with a frame channel for a cart carrying tobacco leaves to enter and exit; a compacting mechanism is provided on the frame, and the compacting mechanism comprises a support plate fixedly connected to the top of the frame, a guide column vertically slidingly arranged in the support plate, a compacting plate horizontally fixedly connected to the lower end surface of the guide column, and a four-bar linkage mechanism in which upper and lower opposite connecting parts are respectively hinged to the lower end surface of the support plate and the upper end surface of the compacting plate; the front and rear opposite connecting parts of the four-bar linkage are respectively hinged to the pull rod and the fixed frame, the cylinder body of the hydraulic cylinder is fixedly connected to the fixed frame and its telescopic rod is hinged to the pull rod; a hydraulic station connected to the hydraulic cylinder is provided on one side of the frame. The utility model has a simple structure, and the hydraulic cylinder is placed horizontally to reduce the height of the overall equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco leaf packaging, and in particular relates to a tobacco leaf compacting device. Background Art

[0002] After the flue-cured tobacco leaves are purchased at the production base, they need to be weighed and compacted before being packaged in order to be transported to the redrying plant for storage and redrying. In the prior art, a cart carrying tobacco leaves is pushed into a tobacco leaf compacting device, and a hydraulic compacting mechanism in the tobacco leaf compacting device compacts the tobacco leaves for subsequent packaging operations.

[0003] In the prior art, the tobacco leaf compacting device generally includes a frame and a hydraulic cylinder fixedly installed vertically downward at the upper end of the frame, and a compacting plate is fixedly installed horizontally at the lower end of the telescopic rod of the hydraulic cylinder. The compacting plate is driven to move downward by the extension of the hydraulic cylinder to compact the tobacco leaves. For example, the Chinese utility model patent with application number 201220183364.4 and patent name of tobacco leaf hydraulic baler, the Chinese utility model patent with application number 202222246630.X and patent name of a tobacco leaf compactor, and the Chinese utility model patent with application number 202122175983.0 and patent name of a hydraulic tobacco leaf baler are all of the above structure.

[0004] However, the above-mentioned existing structures all have the following technical problems: due to the deepness of the cart, the compacting plate for compacting the tobacco leaves needs to go deep into the cart, so the corresponding telescopic stroke of the hydraulic cylinder is also large, and the cylinder body length of the selected hydraulic cylinder is also long. Since the hydraulic cylinder is fixedly installed on the frame vertically downward, the overall height of the hydraulic cylinder and the frame is relatively high, which causes many inconveniences in transporting such tobacco leaf compacting devices, especially in the process of moving to the factory building, sometimes the door frame height is low, and the hydraulic cylinder needs to be disassembled, which causes inconvenience in transportation and installation. Utility Model Content

[0005] In order to solve the technical problems existing in the prior art, the present application provides a tobacco leaf compacting device with a simple structure and a horizontally placed hydraulic cylinder to reduce the height of the overall equipment.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A tobacco leaf compacting device comprises a frame, the frame is provided with a frame channel for a trolley carrying tobacco leaves to enter and exit; a compacting mechanism is arranged on the frame, and the compacting mechanism comprises a support plate fixedly connected to the top of the frame, a guide column vertically slidingly inserted in the support plate, a compacting plate horizontally fixedly connected to the lower end surface of the guide column, and a four-bar mechanism in which upper and lower opposite connecting parts are respectively hinged to the lower end surface of the support plate and the upper end surface of the compacting plate; the front and rear opposite connecting parts of the four-bar mechanism are respectively hinged to the pull rod and the fixed frame, the cylinder body of the hydraulic cylinder is fixedly connected to the fixed frame and its telescopic rod is hinged to the pull rod; a hydraulic station connected to the hydraulic cylinder is arranged on one side of the frame.

[0008] Preferably, two of the four-bar linkages are relatively arranged and are respectively connected to the support plate, the compaction plate, the pull rod and the fixing frame.

[0009] Preferably, two guide columns are provided.

[0010] Preferably, a linear bearing is fixedly embedded in the support plate, and the guide column is slidably inserted into the linear bearing.

[0011] Preferably, two ends of the upper connecting plate are respectively fixedly connected to the upper ends of the two guide columns, and two ends of the lower connecting plate are respectively fixedly connected to the lower ends of the two guide columns.

[0012] Preferably, a proximity sensor is fixedly connected to the exit of the rack channel.

[0013] Preferably, a limiting mechanism is provided on the rack at the entrance and exit of the rack channel, and the limiting mechanism includes a mounting plate fixedly connected to the rack, a limiting oil cylinder fixedly connected to the mounting plate, a limiting plate hingedly connected to the telescopic rod of the limiting oil cylinder, and connecting plates hingedly connected at both ends to the mounting plate and the middle of the limiting plate.

[0014] Preferably, a support mechanism is provided in the lower part of the rack channel, and the support mechanism includes a plurality of support frames fixedly connected along the traveling direction of the cart, and a plurality of rollers rotatably connected in each of the support frames.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model arranges a four-bar linkage on a support plate and a compacting plate, and hinges a horizontally arranged hydraulic cylinder on the four-bar linkage, so that the hydraulic cylinder can drive the four-bar linkage to be compressed and expanded respectively when the hydraulic cylinder is horizontally extended and retracted, thereby driving the compacting plate to move upward and downward respectively, thereby completing the compaction of tobacco leaves; since the hydraulic cylinder is arranged horizontally, the overall height of the tobacco leaf compacting device is relatively low, avoiding the problem in the prior art that the overall height of the equipment is relatively high and the transportation and installation are inconvenient due to the vertical arrangement of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a side structural schematic diagram of the utility model.

[0019] Figure 3 It is a schematic diagram of the connection structure of the frame and the compacting mechanism of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the compacting mechanism of the utility model.

[0021] Figure 5 It is a side structural schematic diagram of the compacting mechanism of the utility model.

[0022] Figure 6 It is a structural schematic diagram of the limiting mechanism of the utility model.

[0023] Figure 7 It is a structural schematic diagram of the support mechanism of the utility model.

[0024] In the figure: 1, frame, 11, bottom frame, 12, support frame, 121, frame channel, 13, top frame, 14, hydraulic station support, 15, transition plate,

[0025] 2. Compacting mechanism, 21. Support plate, 22. Linear bearing, 23. Guide column, 24. Compacting plate, 25. Upper connecting plate, 26. Lower connecting plate, 27. Four-bar linkage, 271. Articulated seat, 272. Articulated shaft, 273. Upper connecting rod, 274. Lower connecting rod, 275. Pull rod, 276. Fixed frame, 28. Hydraulic cylinder,

[0026] 3. Hydraulic station, 4. Limiting mechanism, 41. Mounting plate, 42. Limiting cylinder, 43. Limiting plate, 44. Connecting plate,

[0027] 5. Support mechanism, 51. Support frame, 52. Roller. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Example

[0030] See attached Figure 1 , 2 As shown, a tobacco leaf compacting device includes a frame 1, a compacting mechanism 2, a hydraulic station 3, a limiting mechanism 4, and a supporting mechanism 5.

[0031] The frame 1 includes a bottom frame 11, a support frame 12 fixedly installed on the bottom frame 11 by bolts, a top frame 13 fixedly connected to the upper end of the support frame 12 by bolts, and a hydraulic station bracket 14 arranged on the bottom frame 11 on one side of the support frame 12, and a hydraulic station 3 is installed on the hydraulic station bracket 14.

[0032] A rack channel 121 is provided between the support frames 12 for a cart loaded with tobacco leaves to enter and exit. Figure 1 The side closer to the observer is the entrance of the rack channel 121, and the side opposite to the entrance of the rack channel 121 is the exit of the rack channel 121. A cart (not shown in the figure) enters the rack channel 121 from the entrance of the rack channel 121 and is limited by the limiting mechanism 4 below the compacting mechanism 2. After the compacting mechanism 2 compacts the tobacco leaves in the cart, the cart can be pushed out from the exit of the rack channel 121.

[0033] See also Figure 7As shown, in order to facilitate pushing the cart in the rack channel 121, a plurality of support frames 51 are fixedly installed by bolts on the bottom frame 11 at the lower part of the rack channel 121 along the direction of the cart's travel, and a plurality of rollers 52 are rotatably connected in each support frame. After the cart is pushed into the rack channel 121, the bottom of the cart is supported by the rollers 52. Since the bottom frame 11 has a certain height, a conveying mechanism (not shown in the figure) that docks with the previous process such as the process of loading tobacco leaves into the cart can be set at the entrance of the rack channel 121. In order to facilitate the cart to be pushed out of the rack channel 121, an inclined transition plate 15 is set at the exit of the rack channel 121.

[0034] See also Figure 3 , 4 As shown in Figures 5 and 6, the compaction mechanism 2 is fixedly mounted on the top frame 13. The compaction mechanism 2 includes a horizontally arranged support plate 21 fixedly connected to the top frame 13 by bolts. Two linear bearings 22 are vertically fixedly embedded in the support plate 21 by bolts. Two guide columns 23 are respectively vertically slidably penetrated in the linear bearings 22 and extend to the bottom of the support plate 21. The lower end surfaces of the two guide columns 23 are horizontally fixedly connected with a compaction plate 24 by bolts. In order to improve the connection strength between the two guide columns 23 and between the compaction plate 24, the two ends of the upper connecting plate 25 are respectively fixedly connected to the upper ends of the two guide columns 23 by bolts, and the two ends of the lower connecting plate 26 are respectively fixedly sleeved on the lower ends of the two guide columns 23.

[0035] Two sets of four-bar linkages 27 arranged opposite and in parallel are arranged on the lower end surface of the support plate 21 and the upper end surface of the compacting plate 24. The four-bar linkage 27 includes two U-shaped hinge seats 271 fixedly connected to the lower end surface of the support plate 21 and the upper end surface of the compacting plate 24 by bolts, a hinge shaft 272 fixedly penetrated in each hinge seat 271, two upper connecting rods 273 with one end rotatably connected to the hinge shaft 272 on the support plate 21, and one end rotatably connected to the hinge shaft 272 on the compacting plate 24. The other ends of the two lower connecting rods 274, the other ends of the two upper connecting rods 273 are rotatably connected to the pull rod 275 and the fixing frame 276, respectively, and the other ends of the two lower upper connecting rods 274 are also rotatably connected to the pull rod 275 and the fixing frame 276, respectively, so that the two ends of the pull rod 275 and the fixing frame 276 are respectively connected to the front and rear opposite connecting parts of the two groups of four-bar linkages 27, and the upper and lower opposite connecting parts of the two groups of four-bar linkages 27 are respectively rotatably connected to the hinge shaft 272 on the corresponding hinge seat 271. The hydraulic cylinder 28 is horizontally arranged and its cylinder body is fixedly penetrated in the fixing frame 276, and the telescopic rod of the hydraulic cylinder 28 is rotatably connected to the middle part of the pull rod 275 through a hinge joint.

[0036] See also Figure 2 , 6As shown, in order to prevent the compacting plate 24 from being unable to effectively extend into the cart and move to compact the tobacco leaves, or even causing damage to the hydraulic cylinder 28, when compacting the tobacco leaves in the cart, in this embodiment, a limiting mechanism 4 is installed on the support frame 12 at the inlet and outlet of the rack channel 121.

[0037] The limiting mechanism 4 includes a mounting plate 41 fixedly connected to the support frame 12 by bolts, a limiting oil cylinder 42 fixedly connected to the mounting plate 41 by bolts, a limiting plate 43 hingedly connected to the telescopic rod of the limiting oil cylinder 42 by a pin structure, and a connecting plate 44 whose two ends are respectively hingedly connected to the mounting plate 41 and the middle part of the limiting plate 43 by a pin structure. When the guide rod of the limiting oil cylinder 42 is extended, the limiting plate 43 can be driven to deflect toward the cart direction, thereby fixing the position of the cart.

[0038] Furthermore, in order to improve the automation level of the device, a proximity sensor (not shown) is fixedly installed on the support frame 12 at the exit of the rack channel 121. The proximity sensor is connected to the controller. When the cart is pushed into the corresponding position in the rack channel 121, the proximity sensor is triggered, so that the controller controls the telescopic rods of each limit cylinder 42 to extend, thereby fixing the relative position of the cart through the limit plate 43. The hydraulic station 3 can be connected to and control the hydraulic cylinder 28 and each limit cylinder 42 respectively.

[0039] The working process of the embodiment of the utility model is as follows:

[0040] In the initial state, the telescopic rod of the hydraulic cylinder 28 is in an extended state, the compacting plate 24 is at the highest point, the telescopic rod of the limit cylinder 42 is in a retracted state, and the limit plate 43 is deflected away from the cart direction;

[0041] When compacting tobacco leaves, the cart carrying tobacco leaves is pushed onto the roller 52 in the rack channel 121. After the proximity sensor is triggered, the controller controls the telescopic rods of the limit oil cylinders 42 to extend, so that the limit plate 43 positions and fixes the cart; then, the controller controls the telescopic rod of the hydraulic cylinder 28 to retract, thereby driving the compacting plate 24 and the guide column 23 to move downward until the compacting plate 24 completes the preset compaction degree of the tobacco leaves in the cart and stops;

[0042] Afterwards, the controller controls the telescopic rod of the hydraulic cylinder 28 to extend, thereby driving the compacting plate 24 to rise and detach from the cart. The controller controls the telescopic rod of the limit cylinder 42 to retract, and the operator pushes the cart out of the transition plate 15 at the exit of the rack channel 121.

[0043] In this process, the controller can select an existing PLC controller, which is connected to and controls the hydraulic station 3, thereby controlling components such as the hydraulic cylinder 28 and the limit cylinder 42. The automation level of the utility model is achieved by setting up the controller. The connection method and control principle between the controller and the above-mentioned components are existing technologies and will not be repeated here, as long as the above-mentioned working process can be realized.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tobacco leaf compacting device, comprising a frame, characterized in that: The frame is provided with a frame channel for a trolley carrying tobacco leaves to enter and exit, and a compacting mechanism is provided on the frame. The compacting mechanism comprises a support plate fixedly connected to the top of the frame, a guide column vertically slidably inserted in the support plate, a compacting plate horizontally fixedly connected to the lower end surface of the guide column, and a four-bar linkage mechanism in which upper and lower opposite connecting parts are hingedly connected to the lower end surface of the support plate and the upper end surface of the compacting plate respectively; The front and rear opposite connecting parts of the four-bar linkage are respectively hinged to the pull rod and the fixed frame, the cylinder body of the hydraulic cylinder is fixedly connected to the fixed frame and its telescopic rod is hinged to the pull rod; A hydraulic station connected to the hydraulic cylinder is arranged on one side of the frame.

2. A tobacco leaf compacting device according to claim 1, characterized in that: The four-bar linkages are relatively arranged with two of them and are correspondingly connected with the support plate, the compaction plate, the pull rod and the fixing frame.

3. A tobacco leaf compacting device according to claim 1, characterized in that: Two guide posts are provided.

4. A tobacco leaf compacting device according to claim 1, characterized in that: A linear bearing is fixedly embedded in the support plate, and the guide column is slidably inserted into the linear bearing.

5. A tobacco leaf compacting device according to claim 3, characterized in that: The two ends of the upper connecting plate are respectively fixedly connected to the upper ends of the two guide pillars, and the two ends of the lower connecting plate are respectively fixedly connected to the lower ends of the two guide pillars.

6. A tobacco leaf compacting device according to claim 1, characterized in that: A proximity sensor is fixedly connected at the exit of the rack channel.

7. A tobacco leaf compacting device according to claim 6, characterized in that: A limiting mechanism is provided on the rack at the entrance and exit of the rack channel, and the limiting mechanism includes a mounting plate fixedly connected to the rack, a limiting oil cylinder fixedly connected to the mounting plate, a limiting plate hingedly connected to the telescopic rod of the limiting oil cylinder, and connecting plates hingedly connected at both ends to the mounting plate and the middle of the limiting plate.

8. The tobacco leaf compacting device according to claim 1, characterized in that: A supporting mechanism is arranged at the lower part of the rack channel, and the supporting mechanism comprises a plurality of supporting frames fixedly connected along the traveling direction of the cart, and a plurality of rollers rotatably connected in each of the supporting frames.

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