Bag clamping and hoisting device for slurry bag transportation and hoisting method of bag clamping and hoisting device

Abstract

The invention relates to the technical field of paper pulp production, and aims to solve the technical problem of quickly fixing a lifting appliance of lifting equipment and a steel wire rope at the top of a pulp bag. In order to solve the technical problem, the invention provides the bag clamping and hoisting device for slurry bag transportation and the hoisting method thereof. The invention comprises: a fixed cross beam; the connecting assembly is connected to the fixed cross beam; the at least two grabbing assemblies are connected to the connecting assembly at intervals; a grabbing body of the grabbing assembly is connected with the connecting assembly in an up-down sliding mode. The grabbing part is connected to the bottom of the grabbing body; the grabbing part comprises a grabbing power part which is connected with the clamping jaws and is used for driving the two clamping jaws to move reversely so as to realize opening and closing of the two clamping jaws; the two sides of the clamping jaw are each provided with at least one pressing plate, and the pressing plates are connected with the grabbing body. Under the weight of the fixed cross beam and the connecting assembly, the pressing plate presses the upper surface of the slurry bag downwards to form a pit, and the two clamping jaws are closed in the pit to hook the steel wire rope. According to the invention, the pulp bag can be automatically and efficiently clamped.

Description

Technical Field

[0001] The present invention relates to the technical field of pulp production, and in particular to a pulp bag clamping and lifting device for transporting pulp bags and a lifting method thereof. Background Art

[0002] Pulp produced by paper mills needs to be packaged into bales before being hoisted. Existing lifting systems use lifting equipment to directly lift individual bales. Before lifting, the lifting equipment's hooks and other slings must be attached to the wire ropes at the top of the bales. However, the bales are quite high, so securing the slings and wire ropes is a challenge. (Some people manually climb up the bales to secure the slings and wire ropes, which is inefficient, dangerous, and labor-intensive.) Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art of how to quickly fix the sling of the lifting equipment to the steel wire rope on the top of the pulp bag.

[0004] In order to solve the above technical problems, the present invention provides a bag clamping and lifting device for pulp bag transportation, comprising: Fixed crossbeam, set horizontally; A connecting assembly connected to the fixed beam; At least two grabbing assemblies are connected to the connecting assembly at intervals; the grabbing assembly includes a grabbing body, at least one grabbing component, and a plurality of pressure plates; the grabbing body is slidably connected to the connecting assembly up and down; the grabbing component is connected to the bottom of the grabbing body; the grabbing component includes a grabbing power unit and two clamping jaws located on either side of the wire rope; the grabbing power unit is connected to the clamping jaws and is used to drive the two clamping jaws to move in opposite directions to achieve opening and closing of the two clamping jaws; at least one pressure plate is provided on each side of the clamping jaw, and the pressure plate is connected to the grabbing body; Among them, under the weight of the fixed beam and the connecting assembly, the pressure plate presses down the upper surface of the pulp bag to form a pit, and the two clamping claws close in the pit to hook the wire rope.

[0005] In one embodiment of the present invention, the grabbing power unit includes a power member, a gear and two parallel racks; the power member is connected to the grabbing body; the gear is rotationally connected to the grabbing body; the output end of the power member is connected to one of the two racks; the two racks are symmetrically arranged on both sides of the gear, and the racks are meshed with the gear; the clamping claws and the racks are arranged and connected one by one.

[0006] In one embodiment of the present invention, the grabbing power unit also includes two first guide members, which are arranged in a one-to-one correspondence with the rack; the first guide member includes a first guide groove provided on the grabbing body and a first guide block connected to the rack; the first guide block is slidably connected in the first guide groove.

[0007] In one embodiment of the present invention, the grabbing power unit also includes two parallel guide columns and two guide members; the guide columns are connected to the grabbing body; the two guide members are respectively connected to the racks; the guide members are connected to the ends of the guide columns through guide sleeves; and the clamps are connected to the bottom of the guide members.

[0008] In one embodiment of the present invention, the pressing plate is movably connected to the gripping body; a waist-shaped hole is provided on the pressing plate; a connecting rod is provided on the side of the clamp facing the pressing plate, and the connecting rod is movably connected to the waist-shaped hole.

[0009] In one embodiment of the present invention, there are multiple connecting assemblies, and the multiple connecting assemblies are arranged at intervals along the extension direction of the fixed beam; one connecting assembly corresponds to at least two grabbing assemblies.

[0010] In one embodiment of the present invention, the distance between two adjacent connecting components is adjustable.

[0011] In one embodiment of the present invention, the present application also includes an adjusting power unit for adjusting the distance between two adjacent connecting components; the adjusting power unit includes an adjusting power unit hinged to a fixed beam, and the output end of the adjusting power unit is hinged to the connecting component; the connecting component is slidably connected to the fixed beam.

[0012] In one embodiment of the present invention, at least two spaced-apart leveling plates are provided on the side of the fixed beam, and the leveling plates and the connecting assembly form a sliding pair; the flatness of the leveling plates is higher than that of the side of the fixed beam.

[0013] In one embodiment of the present invention, a slide groove is provided on the outer wall of the connecting component; the top of the grab body is a frame structure, the frame structure is sleeved on the connecting component, the frame structure and the slide groove constitute a sliding pair, and the connecting component moves up and down in the frame structure.

[0014] In one embodiment of the present invention, the present application further includes a lifting assembly connected to the fixed beam to apply a lifting force to the fixed beam.

[0015] In another aspect, the present invention provides a method for lifting a pulp bag using a bag lifting device, the steps comprising: The bag lifting device in any of the above embodiments moves until the pressure plate contacts the upper surface of the pulp bag; the lifting force of the bag lifting device is removed, the connecting assembly moves downward in the grabbing body, and as the connecting assembly continues to move downward, the grabbing body moves downward synchronously, and the pressure plate first presses down the upper surface of the pulp bag and forms a pit below the wire rope, and the clamping claw moves horizontally and closes at the pit to hook the wire rope.

[0016] The above technical solution of the present invention has the following advantages over the prior art: The bag clamping and lifting device for pulp bag transportation described in the present invention can grab the pulp bag through two grabbing assemblies arranged on the connecting assembly. The grabbing body of the present application is connected to the connecting assembly by sliding up and down, so that when the pressure plate contacts the upper surface of the pulp bag (the lifting force is removed), the connecting assembly will move downward relative to the grabbing body under the direct action of the weight of the connecting assembly and the fixed beam, and then drive the connecting assembly, the fixed beam and the grabbing assembly to move downward synchronously so that the pressure plate presses a pit on the upper surface of the pulp bag. At this time, the clamping claw is located directly above the pit and is located on both sides of the wire rope. The grabbing power unit is controlled to move and close the two clamping claws, thereby hooking and fixing the wire rope to the present device. It can be seen that the present application only needs to control the application and removal of the lifting force and the switch of the grabbing power unit to realize automatic clamping of the pulp bag, solving the problem of fixed connection between the sling and the wire rope. It does not require manual operation, has high efficiency, low risk factor and low labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings, wherein: Figure 1 1 is a schematic structural diagram of a bag clamping and lifting device for pulp bag transportation in a preferred embodiment of the present invention; Figure 2 yes Figure 1 A front view of a bag clamping and lifting device for pulp bag transportation; Figure 3 yes Figure 1 A side view of a bag clamping and lifting device for transporting pulp bags; Figure 4 yes Figure 1 A schematic structural diagram of a grabbing assembly in a bag clamping and lifting device for pulp bag transportation; Figure 5 yes Figure 4 The main view; Figure 6 yes Figure 4 Side view of Figure 7 yes Figure 6 AA section view; Figure 8 yes Figure 4 Internal schematic diagram of Figure 9 yes Figure 8 Schematic diagram from another perspective; Figure 10 yes Figure 8 Side view of Figure 11 yes Figure 8 A top view of Figure 12yes Figure 8 The main view; Description of the accompanying drawings: 100, fixed beam; 110, leveling plate; 200, connecting assembly; 210, adjusting power unit; 220, sliding frame; 221, first slider; 230, connecting rod; 240, slide groove; 250, connecting block; 251, second slider; 260, protective pad; 300, gripping assembly; 310, gripping body; 311, frame structure; 320, pressing plate; 321, waist-shaped hole; 330, gripping power unit; 331, power member; 332, gear; 333, rack; 334, first guide groove; 335, first guide block; 336, guide post; 337, guide member; 340, clamping claw; 341, connecting rod; 400, pulp bag; 410, wire rope; 420, pit. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0019] Reference Figures 1 to 12 As shown, an embodiment of the present invention provides a bag clamping and lifting device for pulp bag transportation, comprising: The fixed crossbeam 100 is arranged horizontally; The connecting assembly 200 is connected to the fixed beam 100 (for example, the connecting assembly 200 is connected to the bottom of the fixed beam 100 ); in some embodiments, the connecting assembly 200 is arranged perpendicular to the fixed beam 100 ; At least two grab assemblies 300 are connected to the connecting assembly 200 at intervals. In some embodiments, there are two grab assemblies 300, and the two grab assemblies 300 are symmetrically connected to the connecting assembly 200 with the axis of the fixed crossbeam 100 as the axis of symmetry. For example, the two grab assemblies 300 are connected to both ends of the connecting assembly 200. The grab assemblies 300 include a grab body 310, at least one grab component, and a plurality of pressure plates 320. The grab body 310 is connected to the connecting assembly 200 for vertical sliding connection. The grab component is connected to the bottom of the grab body 310. The grab component includes a grab power unit 330 and two clamping jaws 340 located on either side of the wire rope 410. The grab power unit 330 is connected to the clamping jaws 340 and is used to drive the two clamping jaws 340 to move in opposite directions to achieve opening and closing of the two clamping jaws 340. When the two clamping jaws 340 are closed, they hook the wire rope 410, and when the two clamping jaws 340 are opened, the wire rope 410 is released. At least one pressing plate 320 is provided on each side of the clamping jaw 340. The pressing plate 320 is connected to the gripping body 310. The pressing plate 320 contacts the upper surface of the pulp bag 400 before the clamping jaw 340 (that is, the lower surface of the pressing plate 320 is lower than the lower surface of the clamping jaw 340). In which, under the weight of the fixed beam 100 and the connecting assembly 200, the pressure plate 320 presses down the upper surface of the pulp bag 400 to form a pit 420 (at this time, the wire rope 410 is separated from the upper surface of the pulp bag 400 at the pit 420), and the two clamps 340 close in the pit 420 to hook the wire rope 410.

[0020] The above-mentioned lifting method of the bag-clamping lifting device for transporting the pulp bag 400 includes the following steps: the bag-clamping lifting device moves until the pressure plate 320 contacts the upper surface of the pulp bag 400; the lifting force of the bag-clamping lifting device is removed, and the connecting component 200 moves downward in the grabbing body 310. As the connecting component 200 continues to move downward, the grabbing body 310 moves downward synchronously, and the pressure plate 320 first presses down the upper surface of the pulp bag 400 and forms a pit 420 below the wire rope 410 (since the pulp bag 400 is relatively soft, a pit 420 will be formed after pressing down), and the clamping claw 340 moves horizontally and closes at the pit 420 to hook the wire rope 410.

[0021] Specifically, the present application is capable of grabbing the pulp bag 400 by means of two grabbing assemblies 300 provided on the connecting assembly 200. The grabbing body 310 of the present application is connected to the connecting assembly 200 by sliding up and down, so that when the pressing plate 320 contacts the upper surface of the pulp bag 400 (the lifting force is removed), the connecting assembly 200 will move downward relative to the grabbing body 310 under the direct action of the weight of the connecting assembly 200 and the fixed beam 100, and then drive the connecting assembly 200, the fixed beam 100 and the grabbing assembly 300 to move downward synchronously so that the pressing plate 320 presses a pit 420 on the upper surface of the pulp bag 400. At this time, the clamping jaws 340 are located directly above the pit 420 and are respectively located on both sides of the wire rope 410. The grabbing power unit 330 is controlled to move and close the two clamping jaws 340, thereby hooking and fixing the wire rope 410 on the present device. It can be seen that the present application can automatically clamp the pulp bag 400 by simply controlling the application and removal of the lifting force and the switch of the grabbing power unit 330, thereby solving the problem of fixed connection between the sling and the wire rope 410.

[0022] When the pulp bag 400 and the device need to be untied, the grabbing power unit 330 is first controlled to move the two clamping claws 340 open, and then the fixed beam 100 is raised by the lifting equipment, so that the device can be untied from the pulp bag 400.

[0023] Furthermore, the two clamping jaws 340 of each gripping component are staggered. Specifically, the staggered arrangement of the two clamping jaws 340 ensures that both clamping jaws 340 can clamp the wire rope 410, increasing the contact surface of the clamping jaws 340, reducing the force on a single clamping jaw 340, and increasing its lifespan. At the same time, it prevents a single clamping jaw 340 from slipping off the wire rope 410. That is, the two clamping jaws 340 can act as a locking mechanism, reducing slipping during transportation and increasing safety.

[0024] Furthermore, the gripping power unit 330 includes a power member 331, a gear 332, and two parallel racks 333. The power member 331 is connected to the gripping body 310. The gear 332 is rotationally connected to the gripping body 310. The output end of the power member 331 is connected to one of the two racks 333. The two racks 333 are symmetrically arranged on either side of the gear 332 and mesh with the gear 332. The clamping jaws 340 are arranged in a one-to-one correspondence with the racks 333 and are connected to the racks 333. In some embodiments, the power member 331 may be a telescopic cylinder. The power member 331 extends and retracts, thereby driving one of the racks 333 to move. The other rack 333, driven by the gear 332, moves in the opposite direction of the previous rack 333. Specifically, in this embodiment, through the meshing of the gear 332 and the two racks 333, one rack 333 can translate under the power member 331, while the other rack 333 translates in the opposite direction. This ultimately drives the two clamping jaws 340 to move in opposite directions and open and close. The structure is compact and the operation is stable and reliable.

[0025] Furthermore, the gripping power unit 330 includes two first guide members 337, each corresponding to the rack 333. The first guide members 337 include a first guide slot 334 provided on the gripping body 310 and a first guide block 335 connected to the rack 333. The first guide block 335 is slidably connected to the first guide slot 334. Specifically, this embodiment can guide the translation of the rack 333.

[0026] Furthermore, the gripping power unit 330 includes two parallel guide posts 336 and two guide members 337. The guide posts 336 are connected to the gripping body 310. The two guide members 337 are respectively connected to the racks 333. The guide members 337 are connected to the ends of the guide posts 336 via guide sleeves. The clamping jaws 340 are connected to the bottoms of the guide members 337. Specifically, this embodiment can guide the translation of the clamping jaws 340.

[0027] Furthermore, the pressing plate 320 is movably connected to the gripping body 310; a waist-shaped hole 321 is provided on the pressing plate 320; and a connecting rod 341 is provided on the side of the clamping jaw 340 facing the pressing plate 320, and the connecting rod 341 is movably connected to the waist-shaped hole 321. Specifically, the connecting rod 341 in this embodiment links the pressing plate 320 with the clamping jaw 340, that is, the movement of the clamping jaw 340 drives the pressing plate 320 to rotate, so that the pressing plate 320 is always located to the side of the clamping jaw 340 during the movement and closing process of the clamping jaw 340, thereby ensuring that there is a recess 420 under the clamping jaw 340 at all times, preventing the clamping jaw 340 from contacting the upper surface of the pulp bag 400 when closing, thereby affecting the movement and closing of the clamping jaw 340.

[0028] Furthermore, there are multiple connecting assemblies 200, which are spaced apart along the extending direction of the fixed crossbeam 100; one connecting assembly 200 corresponds to at least two grabbing assemblies 300. Specifically, the multiple connecting assemblies 200 in this embodiment can lift multiple pulp bags 400 at a time, thereby improving efficiency.

[0029] Furthermore, the spacing between two adjacent connecting assemblies 200 is adjustable. Specifically, this embodiment enables the lifting of pulp bags 400 of different sizes by adjusting the spacing between two adjacent connecting assemblies 200. Specifically, the adjustable spacing between two adjacent connecting assemblies 200 in this embodiment enables the lifting of pulp bags 400 of different sizes in a single lifting process, which has a wider range of applications.

[0030] Furthermore, the present application also includes an adjustment power unit 210 for adjusting the spacing between two adjacent connecting assemblies 200; the adjustment power unit 210 includes an adjustment power unit 210 hingedly connected to the fixed beam 100, and an output end of the adjustment power unit 210 hingedly connected to the connecting assembly 200; the connecting assembly 200 is slidably connected to the fixed beam 100. In some embodiments, the adjustment power unit 210 is a telescopic cylinder. The telescopic cylinder is directly connected to the top of the fixed beam 100, and the output end of the telescopic cylinder is connected to the top of the connecting assembly 200. Specifically, this embodiment can automatically adjust the spacing between two adjacent connecting assemblies 200 by adjusting the power unit 210.

[0031] Furthermore, the connecting assembly 200 includes a sliding frame 220 and a connecting rod 230. The sliding frame 220 is mounted on the fixed beam 100 and is slidably connected to the fixed beam 100. The connecting rod 230 is connected to the bottom of the sliding frame 220. The gripping assembly 300 is connected to both ends of the connecting rod 230. In some embodiments, a first slider 221 is attached to the inner wall of the sliding frame 220. In some embodiments, the first slider 221 can be made of nylon.

[0032] Furthermore, at least two spaced-apart leveling plates 110 are provided on the side of the fixed beam 100. The leveling plates 110 and the connecting assembly 200 form a sliding pair. The leveling plates 110 have a higher flatness than the side of the fixed beam 100. Specifically, if all four sides of the fixed beam 100 are produced with a high level of flatness, the process would be more difficult and costly. The flatness of the side of the fixed beam 100 directly affects the smoothness of the sliding of the connecting assembly 200 on the fixed beam 100. Therefore, the present application connects high-flatness leveling plates 110 to the side of the fixed beam 100. During the processing, the leveling plates 110 can achieve low cost and high flatness.

[0033] Furthermore, a slide groove 240 is provided on the outer wall of the connecting component 200; in some embodiments, two connecting blocks 250 are respectively provided on both sides of the connecting component 200, and a slide groove 240 is formed between the two connecting blocks 250. In some embodiments, in order to reduce the friction between the connecting component 200 and the grasping body 310 during relative movement, a second slider 251 is provided on the inner side of the connecting block 250. The top of the grasping body 310 is a frame structure 311, which is sleeved on the connecting component 200. The frame structure 311 and the slide groove 240 form a sliding pair, and the connecting component 200 moves up and down in the frame structure 311. Specifically, in this embodiment, the slide groove 240 and the frame structure 311 form a sliding pair, so that the grasping body 310 moves up and down more smoothly.

[0034] In some embodiments, in order to prevent damage caused by direct collision between the frame structure 311 and the connection assembly 200 at the upper and lower extreme positions, protective pads 260 are respectively provided on the upper and lower surfaces of the connection assembly 200.

[0035] Furthermore, the present application also includes a lifting assembly (not shown) connected to the fixed beam 100 to apply a lifting force to the fixed beam 100. In some embodiments, the lifting assembly can be a winch, etc. The lifting assembly can apply a lifting force to the fixed beam 100, thereby lifting the fixed beam 100, the connecting assembly 200, the grabbing assembly 300, and the pulp bag 400, thereby achieving the transfer of the pulp bag 400 to another location.

[0036] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A bag clamping and lifting device for pulp bag transportation, characterized by: include: Fixed crossbeam, set horizontally; a connecting assembly connected to the fixed beam; At least two grab assemblies are connected to the connecting assembly at intervals; the grab assemblies include a grab body, at least one grab component, and a plurality of pressure plates; the grab body is slidably connected to the connecting assembly up and down; the grab component is connected to the bottom of the grab body; the grab component includes a grab power unit and two clamping jaws located on both sides of the wire rope; the grab power unit is connected to the clamping jaws and is used to drive the two clamping jaws to move in opposite directions to achieve opening and closing of the two clamping jaws; at least one pressure plate is provided on each side of the clamping jaw, and the pressure plate is connected to the grab body; Wherein, under the weight of the fixed beam and the connecting assembly, the pressing plate presses down the upper surface of the pulp bag to form a pit, and the two clamping claws close in the pit to hook the wire rope.

2. The bag clamping and lifting device for pulp bag transportation according to claim 1, characterized in that: The grabbing power unit includes a power member, a gear and two parallel racks; the power member is connected to the grabbing body; the gear is rotatably connected to the grabbing body; the output end of the power member is connected to one of the two racks; the two racks are symmetrically arranged on both sides of the gear, and the racks are meshed with the gear; the clamping jaws are arranged and connected in a one-to-one correspondence with the racks.

3. The device for lifting and clamping pulp bales according to claim 2, characterized in that: The grabbing power unit also includes two first guide members, which are arranged in a one-to-one correspondence with the racks; the first guide members include a first guide groove provided on the grabbing body and a first guide block connected to the rack; the first guide block is slidably connected in the first guide groove.

4. The device for lifting and clamping pulp bales according to claim 3, characterized in that: The grabbing power unit also includes two parallel guide columns and two guide members; the guide columns are connected to the grabbing body; the two guide members are respectively connected to the racks; the guide members are connected to the ends of the guide columns through guide sleeves; and the clamps are connected to the bottoms of the guide members.

5. The bag clamping and lifting device for pulp bag transportation according to claim 4, characterized in that: The pressing plate is movably connected to the grab body; a waist-shaped hole is provided on the pressing plate; a connecting rod is provided on the side of the clamping jaw facing the pressing plate, and the connecting rod is movably connected to the waist-shaped hole.

6. The bag clamping and lifting device for pulp bag transportation according to claim 1, characterized in that: There are multiple connecting components, and the multiple connecting components are arranged at intervals along the extension direction of the fixed beam; one connecting component corresponds to at least two grabbing components.

7. The device for lifting and clamping pulp bales according to claim 6, characterized in that: The distance between two adjacent connecting components is adjustable.

8. The device for lifting and clamping pulp bales for transporting pulp bales according to claim 7, characterized in that: It also includes an adjusting power unit for adjusting the distance between two adjacent connecting components; the adjusting power unit includes an adjusting power unit hinged to the fixed beam, and the output end of the adjusting power unit is hinged to the connecting component; the connecting component is slidably connected to the fixed beam.

9. The device for lifting and clamping pulp bales for transporting pulp bales according to claim 1, characterized in that: At least two spaced-apart leveling plates are provided on the side surface of the fixed beam, and the leveling plates and the connecting assembly form a sliding pair; the flatness of the leveling plates is higher than that of the side surface of the fixed beam.

10. The bag clamping and lifting device for pulp bag transportation according to claim 1, characterized in that: The outer wall of the connecting component is provided with a slide groove; the top of the grab body is a frame structure, the frame structure is sleeved on the connecting component, the frame structure and the slide groove form a sliding pair, and the connecting component moves up and down in the frame structure.

11. The device for lifting and clamping pulp bales according to claim 1, characterized in that: The utility model further comprises a lifting assembly connected with the fixed beam to apply a lifting force to the fixed beam.

12. A method for lifting a pulp bag using a bag lifting device, characterized by the following steps: include: The bag-clamping lifting device according to any one of claims 1 to 11 is moved until the pressing plate contacts the upper surface of the pulp bag; When the lifting force of the bag lifting device is removed, the connecting assembly moves downward in the grabbing body. As the connecting assembly continues to move downward, the grabbing body moves downward synchronously. The pressure plate first presses down the upper surface of the pulp bag and forms a pit below the wire rope. The clamping claw moves horizontally and closes at the pit to hook the wire rope.

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