Canvas covering device

Abstract

A covering canvas device, comprising a frame (1). A mounting frame (11) is disposed on one side of the frame (1). A hydraulic control valve (16) is mounted on the mounting frame (11). The hydraulic control valve (16) is provided with a plurality of sets of manipulation rods (14). Driving rubber rollers (4) and a surface-handling rubber roller (6) are sequentially and rotatably connected to the frame (1) from inside to outside. Two axial ends of each driving rubber roller (4) are provided with transmission components to keep the driving rubber rollers rotating in the same direction. A one-way transmission gear box (7) is arranged between an axial end of one end of the surface-handling rubber roller (6) and an axial end of the driving rubber roller (4) close to the surface-handling rubber roller (6). Two axial ends of the surface-handling rubber roller (6) are symmetrically provided with eccentric structures (8) and claw plates (5). Folding of the covering canvas can be avoided and flattening can be effectively implemented.

Description

A canvas covering device Technical Field

[0001] The present invention relates to the technical field of canvas covering, in particular to a canvas covering device. Background Art

[0002] Canvas is a thick, dense, and strong plain cloth of different weights woven from linen or cotton yarn, used to make tents, camp beds, clothes, shoes, etc.; canvas is usually divided into two categories: coarse canvas and fine canvas; coarse canvas, also known as tarpaulin, has good waterproof properties and is used for covering automobile transportation, open warehouses, etc., as well as setting up tents in the wild.

[0003] During the canvas covering process, the canvas needs to be unrolled using a rubber roller, and when it needs to be rolled up, the canvas needs to be rolled up using a rubber roller. Since the covering canvas is heavy, the friction with the covering object during the unrolling and rolling process can easily cause the covering canvas to wrinkle, resulting in incomplete covering and poor rolling effect, which will affect the next use of the covering.

[0004] Summary of the Invention

[0005] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to propose a covering canvas device that avoids wrinkles on the covering canvas, affects the covering effect and the rolling effect, and effectively achieves the flattening effect.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] The present invention provides a canvas covering device, comprising a frame, a mounting frame provided on one side of the frame, a hydraulic control valve installed on the mounting frame, and a plurality of operating levers provided on the hydraulic control valve for controlling the on / off and steering of the hydraulic oil circuit;

[0008] Two groups of driving rubber rollers and one group of surface-sorting rubber rollers are connected to the frame in rotation from the inside to the outside. The two shaft ends of the two groups of driving rubber rollers are provided with transmission components to keep them rotating in the same direction. The two shaft ends of the surface-sorting rubber rollers are symmetrically installed with eccentric structures and horn plates. The bottom of the eccentric structure is installed with a cloth-sorting roller. A one-way transmission gear box is provided between the shaft end of one end of the surface-sorting rubber roller and the shaft end of the driving rubber roller close to it. The horn plate is driven to rotate by the oil cylinder to realize the installation and unloading of the canvas roll, and cooperates with the driving rubber roller to realize the retraction and extension of the covering canvas.

[0009] The preferred technical solution of the present invention is that the horn plate includes a main body plate rotatably connected to the shaft end of the dough-straightening rubber roller, and a movable hook end and a connecting hook end are respectively provided at both ends of the main body plate. A sliding surface is provided between the movable hook end and the connecting hook end, and a placement groove for placing the canvas roll is formed between the sliding surface and the connecting hook end.

[0010] The preferred technical solution of the present invention is that the bottom connecting end of the main body plate is fixedly connected to the floating joint of the oil cylinder on the frame, and the operating handle controls the operation of the oil cylinder through the hydraulic oil circuit.

[0011] A preferred technical solution of the present invention is that spiral protrusions are provided on the outer surfaces of both ends of the surface-smoothing rubber roller, and the rotation directions of the two groups of spiral protrusions are opposite.

[0012] The preferred technical solution of the present invention is that the eccentric structure is installed at the two axial ends of the dough-straightening rubber roller, and the eccentric structure is located between the horn plate and the frame.

[0013] The preferred technical solution of the present invention is that it also includes several groups of cloth guide brackets arranged on the machine rod at the bottom of the frame, the cloth guide brackets are T-shaped, and the several groups of cloth guide brackets are evenly distributed between the dough sorting rubber roller and the driving rubber roller.

[0014] The preferred technical solution of the present invention is that the transmission assembly includes a sprocket group arranged at both ends of two groups of driving rubber rollers, the sprocket group realizes transmission through a chain, the driving rubber rollers are driven by a hydraulic motor, and the output shaft of the driving rubber rollers is rigidly connected to the input shaft of the one-way transmission gear box to achieve synchronous rotation.

[0015] A preferred technical solution of the present invention is that a platform is provided on the side of the mounting frame away from the dough straightening roller, and a counterweight is provided on the platform.

[0016] A preferred technical solution of the present invention is that two sets of connecting plates are provided on one side of the mounting frame for connecting to a telescopic forklift.

[0017] Compared with the prior art, the present invention has the following beneficial effects: the present invention utilizes an operating handle to control the operation of the oil cylinder, and the oil cylinder drives the claw plate to rotate from the connecting hook end to the movable hook end. At this time, the canvas roll is located on the grass, and the two shaft ends of the canvas roll are hooked by the movable hook end. The oil cylinder drives the claw plate to rotate in the opposite direction, so that the movable hook end hooks up the canvas roll and then slides along the landslide surface toward the connecting hook end until the two shaft ends of the canvas roll are located inside the placement groove, the canvas roll and the two sets of driving rubber rollers are abutted, and the frame is placed on the haystack, thereby realizing automatic installation of the canvas roll and eliminating manual operation. The operating handle is utilized to control the rotation of the one-way transmission gear box by controlling the hydraulic oil circuit, thereby driving the two sets of driving rubber rollers to rotate, and the driving rubber rollers drive the canvas roll to rotate, and the canvas roll is unwound, thereby realizing the covering effect on the haystack.

[0018] The driving rubber roller is controlled to reverse, and the driving rubber roller rotates in the opposite direction to drive the canvas roll to reverse, and the canvas roll is wound to store the canvas covering the haystack. During the process of winding and unwinding the canvas roll, the outer wall of the canvas roll is driven by friction with the rubber roller to ensure that the linear speed of the canvas roll is not uneven due to the change in the size of the canvas roll during winding and unwinding, thereby avoiding the canvas from being torn. At the same time, the surface-sorting rubber roller is used to sort the canvas in the process of winding and unwinding. While the surface-sorting rubber roller rotates, it drives the cloth-sorting roller to swing up and down under the action of the eccentric structure, thereby eliminating wrinkles on the canvas, avoiding the situation that wrinkles cause incomplete covering and poor winding effect, etc., thereby effectively improving the efficiency of winding and unwinding. The surface-sorting rubber roller always rotates in one direction under the action of the one-way transmission gear box, thereby achieving the cloth-sorting needs of the winding and unwinding process at the same time.

[0019] After unwinding is completed, the oil cylinder is used to drive the horn plate to rotate from the connecting hook end to the movable hook end, so that the connecting hook end slides the unwound canvas roll along the landslide surface toward the movable hook end, so that the two axial ends of the canvas roll slide outward from the placement groove, thereby realizing the unloading of the canvas roll, improving the convenience of installation and disassembly of the canvas roll, effectively ensuring the efficiency and effect of canvas covering, effectively reducing manual operation, and reducing work intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic structural diagram of a covering canvas device provided in a specific embodiment of the present invention;

[0021] FIG2 is a perspective view of the structure of a covering canvas device provided in a specific embodiment of the present invention;

[0022] FIG3 is an enlarged schematic diagram of the structure at point A in FIG1 provided in a specific embodiment of the present invention.

[0023] Figure Number:

[0024] 1. Frame; 11. Mounting frame; 12. Platform; 13. Connecting plate; 14. Operating handle; 15. Counterweight; 16. Hydraulic control valve; 2. Sprocket assembly; 3. Chain; 4. Driving rubber roller; 5. Claw plate; 51. Main body plate; 52. Movable hook end; 53. Connecting hook end; 54. Placement groove; 55. Slope surface; 6. Fabric sorting rubber roller; 61. Spiral protrusion; 62. Oil cylinder; 63. Fabric guide bracket; 64. Floating joint; 7. One-way drive gear box; 8. Eccentric structure; 9. Fabric sorting roller.

[0025] DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0027] A canvas covering device includes a frame 1, a mounting frame 11 is provided on one side of the frame 1, a hydraulic control valve 16 is installed on the mounting frame 11, and a plurality of operating levers 14 are provided on the hydraulic control valve 16 to control the on / off and steering of the hydraulic oil circuit;

[0028] Two groups of driving rubber rollers 4 and a group of surface-sorting rubber rollers 6 are connected to the frame 1 in sequence from the inside to the outside. The two axial ends of the two groups of driving rubber rollers 4 are respectively provided with transmission components to keep them rotating in the same direction. The two axial ends of the surface-sorting rubber rollers 6 are symmetrically installed with eccentric structures 8 and horn plates 5. The bottom of the eccentric structure 8 is installed with a cloth-sorting roller 9. The rotation of the surface-sorting rubber rollers 6 transmits power to the cloth-sorting rollers 9 through the eccentric structure 8, thereby realizing the up and down swing of the cloth-sorting rollers 9 to realize the cloth-sorting function. A one-way transmission gear box 7 is provided between the axial end of one end of the surface-sorting rubber rollers 6 and the axial end of the driving rubber rollers 4 close thereto. The horn plates 5 are driven to rotate by the oil cylinder 62 to realize the installation and unloading of the canvas roll, and cooperate with the driving rubber rollers 4 to realize the retraction and extension of the covering canvas. The mounting frame 11 is provided with a platform 12 on the side away from the surface-sorting rubber rollers 6, and a counterweight block 15 is provided on the platform 12.

[0029] The horn plate 5 includes a main body plate 51 that is rotatably connected to the shaft end of the dough-smoothing rubber roller 6. The two ends of the main body plate 51 are respectively provided with a movable hook end 52 and a connecting hook end 53. A sliding surface 55 is provided between the movable hook end 52 and the connecting hook end 53. A placement groove 54 for placing the canvas roll is formed between the sliding surface 55 and the connecting hook end 53. The operation of the oil cylinder 62 is controlled by the operating handle 14. The oil cylinder 62 drives the horn plate 5 to rotate from the connecting hook end 53 to the movable hook end 52. At this time, the canvas roll is located on the grass. The two shaft ends of the canvas roll are hooked by the movable hook end 52. The oil cylinder 62 drives the horn plate 5 to rotate in the opposite direction, so that the movable hook end 52 hooks the canvas roll and then slides along the sliding surface 55 toward the connecting hook end 53 until the two shaft ends of the canvas roll are located inside the placement groove 54. The canvas roll is against the two sets of driving rubber rollers 4, and the frame 1 is placed on the grass. The canvas roll is automatically installed on the haystack, eliminating the need for manual operation. The operating lever 14 is used to control the hydraulic motor to control the rotation of the one-way transmission gear box 7, which drives the two sets of driving rubber rollers 4 to rotate. The driving rubber rollers 4 drive the canvas roll to rotate, and the canvas roll is unwound to cover the haystack; the hydraulic motor is controlled to rotate in the opposite direction, and the driving rubber rollers 4 drive the canvas roll to rotate in the opposite direction, and the canvas roll is rewound to store the canvas covering the haystack. During the unwinding and rewinding process, the outer wall of the canvas roll is driven by friction with the rubber rollers. The movement can ensure that the canvas roll will not have uneven linear speed due to changes in the size of the canvas roll when it is wound and unwound, thereby avoiding the canvas from being torn; at the same time, the surface-sorting rubber roller 6 is used to sort the canvas in the winding and unwinding process. While the surface-sorting rubber roller 6 rotates, it drives the cloth-sorting roller 9 to swing up and down under the action of the eccentric structure 8, eliminating wrinkles on the canvas, avoiding wrinkles that cause incomplete covering and poor winding effect, and effectively improving the efficiency of winding and unwinding. The surface-sorting rubber roller 6 always rotates in one direction under the action of the one-way transmission gear box 7. , realizing the cloth handling needs of the winding and unwinding processes at the same time; after unwinding is completed, the oil cylinder 62 is used to drive the horn plate 5 to rotate from the connecting hook end 53 to the movable hook end 52, so that the connecting hook end 53 slides the unwound canvas roll along the sliding surface 55 toward the movable hook end 52, so that the two axial ends of the canvas roll slide outward from the placement groove 54, realizing the unloading of the canvas roll, improving the convenience of installing and disassembling the canvas roll, effectively ensuring the efficiency and effect of canvas covering, effectively reducing manpower operation, and reducing work intensity.

[0030] As a possible implementation of this scheme, preferably, the bottom connecting end of the main plate 51 is fixedly connected to the floating joint 64 of the cylinder 62 on the frame 1, and the operating handle 14 controls the operation of the cylinder 62 through the hydraulic oil circuit. The cylinder 62 drives the main plate 51 to rotate around the axial end of the rubber roller 6 through the floating joint, and the movable hook end 52 is used to hook up the canvas roll and move it along the slide surface 55 toward the connecting hook end 53 to the placement groove 54 to realize the installation of the canvas roll. The canvas roll can be disassembled by rotating the cylinder 62 in the opposite direction, which improves the convenience of disassembly and assembly of the canvas roll, so that the haystack can be covered by unwinding the canvas roll.

[0031] As a possible implementation of the present scheme, preferably, spiral protrusions 61 are respectively provided on the outer surfaces of both ends of the surface-sorting rubber roller 6, and the rotation directions of the two groups of spiral protrusions 61 are opposite. The surface-sorting rubber roller 6 always rotates in one direction under the action of the one-way transmission gear box 7, and the friction generated by the relative sliding of the spiral protrusions 61 and the canvas is used to make the canvas have an outward component of force, thereby achieving the purpose of sorting the cloth.

[0032] As a possible implementation method of this scheme, preferably, the eccentric structure 8 is installed on the two axial ends of the dough-straightening rubber roller 6, and the eccentric structure 8 is located between the horn plate 5 and the frame 1. The eccentric structure 8 is used to drive the dough-straightening rubber roller 6 to swing up and down, so as to process the canvas, eliminate wrinkles in advance, and ensure the effect of winding and unwinding.

[0033] As a possible implementation of the present scheme, it is preferred that it also includes several groups of cloth guide brackets 63 arranged on the machine rod at the bottom of the frame 1, and the cloth guide brackets 63 are T-shaped. Several groups of the cloth guide brackets 63 are evenly distributed between the surface sorting rubber roller 6 and the driving rubber roller 4, which play a guiding role in the winding and unwinding of the canvas roll, thereby avoiding position displacement during the winding and unwinding process.

[0034] As a possible implementation of this scheme, preferably, the transmission assembly includes a sprocket group 2 arranged at both ends of two groups of driving rubber rollers 4, the sprocket group 2 realizes transmission through a chain 3, the driving rubber roller 4 is driven by a hydraulic motor, and the output shaft of the driving rubber roller 4 is rigidly connected to the input shaft of the one-way transmission gear box 7 to achieve synchronous rotation, and the sprocket group 2 is used in conjunction with the chain 3 to achieve synchronous and unidirectional rotation of the two groups of driving rubber rollers 4 to realize the winding and unwinding processing of the canvas roll.

[0035] As a possible implementation of this solution, preferably, two sets of connecting plates 13 are provided on one side of the mounting frame 11 for connecting to a telescopic forklift. The connecting plates 13 are used to quickly connect to the telescopic forklift, making it easy to move and disassemble.

[0036] The present invention is described through preferred embodiments. Those skilled in the art will appreciate that various modifications or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A canvas cover launching device, comprising a frame (1), where a mounting rack (11) is provided at one side of the frame (1); a hydraulic control valve (16) is mounted on the mounting rack (11); a plurality of control levers (14) are provided on the hydraulic control valve (16) to control activation, deactivation, and directions of hydraulic circuits; two driving plastic rollers (4) and a surface smoothening plastic roller (6) are rotatably connected to the frame (1) sequentially along an axial direction of the frame (1) from inside to outside of the frame (1); each pair of corresponding ends of the two driving plastic rollers (4) on a same side are connected to a transmission component which enables the two driving plastic rollers (4) to rotate towards a same direction; each of two ends of the surface smoothening plastic roller (6) is provided with an eccentric structure (8) and a hooked plate (5) which is rotatable; the eccentric structure (8) and the rotatable hooked plate (5) at one end of the surface smoothening plastic roller (6) are symmetrically arranged with respect to the eccentric structure (8) and the hooked plate (5) at another end of the surface smoothening plastic roller (6); a canvas smoothening roller (9) is provided at a bottom side of the eccentric structure (8); rotation of the surface smoothening plastic roller (6) is transmitted to the canvas smoothening roller (9) through eccentric structures (8) at two ends of the surface smoothening plastic roller (6), such that the canvas smoothening roller (9) is capable of oscillating up and down to realize a canvas smoothening effect; a synchronous transmission gearbox (7) is provided to connect corresponding ends on a same side of the surface smoothening plastic roller (6) and one of the two driving plastic rollers2023446121   26 Aug 2026(4), and said one of the two driving plastic rollers (4) is the one that is more proximal to the surface smoothening plastic roller (6); each hooked plate (5) is driven by a hydraulic cylinder (62) to rotate to realize loading and unloading of a roll of canvas; winding and unwinding of the roll of canvas is further realized by cooperative operation of the two driving plastic rollers (4).

2. The canvas cover launching device of claim 1, wherein each hooked plate (5) comprises a main body plate (51) rotatably connected with a corresponding end of the surface smoothening plastic roller (6), a first hook (52) and a second hook (53) are provided at two ends of the main body plate (51) respectively; a sloped surface (55) is provided between the first hook (52) and the second hook (53), and a placing groove (54) configured to place a corresponding end of the roll of canvas is formed between the sloped surface (55) and the second hook (53).

3. The canvas cover launching device of claim 2, wherein a bottom connection end of the main body plate (51) of each hooked plate (5) is fixedly connected to a movable joint of a corresponding hydraulic cylinder (62) disposed on the frame (1); the control levers (14) control operation of the hydraulic cylinder (62) through the hydraulic circuits .

4. The canvas cover launching device of claim 1, wherein outer circumferential surfaces of two end portions of the surface smoothening plastic roller (6) are provided with spiral protrusions (61) respectively; said spiral protrusions (61) at said two end portions of the surface smoothening plastic roller (6) have mutually opposite rotation directions.

5. The canvas cover launching device of claim 1, wherein each of two ends of the surface smoothening plastic roller (6) is provided with said eccentric structure2023446121   26 Aug 2026(8), and each eccentric structure (8) is located between a corresponding hooked plate (5) and the frame (1).

6. The canvas cover launching device of claim 1, further comprising a plurality of canvas guide supports (63) erected from a rod of a bottom of the frame (1); the canvas guide supports (63) have a T-shape, and the canvas guide supports (63) are evenly distributed between the surface smoothening plastic roller (6) and said one of the two driving plastic rollers (4) more proximal to the surface smoothening plastic roller (6).

7. The canvas cover launching device of claim 1, wherein the transmission component comprises sprockets (2) provided at said each pair of said corresponding ends of the two driving plastic rollers (4) on a same side respectively, and the sprockets (2) are connected through a chain (3) to transmit motion; the two driving plastic rollers (4) are driven by a hydraulic motor controlled by the plurality of control levers (14); an input end of said one of the two driving plastic rollers (4) more proximal to the surface smoothening plastic roller (6) is rigidly connected to an output shaft of the synchronous transmission gearbox (7) to achieve synchronous rotation with the surface smoothening plastic roller (6).

8. The canvas cover launching device of claim 1, wherein a platform (12) is provided at one side of the mounting rack (11) away from the surface smoothening plastic roller (6), and a counterweight (15) is provided on the platform (12).

9. The canvas cover launching device of claim 1, wherein one side of the mounting rack (11) is provided with two connection plates (13) configured to connect with a telehandler.

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