A fork loading system and a control method thereof

Abstract

The present application relates to a kind of fork loading system and its control method, comprising: platform assembly, several tracks are provided along its length direction;Several lifting fork assemblies are respectively laid on the track, the lifting fork assembly includes inner fork, outer fork, driving part, the outer fork cover is set in the inner fork, the inner fork interval is provided with multiple inclined blocks, the outer fork interval is provided with multiple rollers, the roller and the inclined block cooperate to make the outer fork and the inner fork relative activity when lifting the outer fork, the driving part is set in one end of the inner fork, the movable end of the driving part is provided with pulley assembly, the pulley assembly is used to drive the outer fork relative activity along the inner fork and provide rolling connection when lifting the outer fork;Several chain assemblies are driven to extend or retract along the track by the lifting fork assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of loading system, in particular to a fork loading system and a control method thereof. BACKGROUND

[0002] With the rapid development of the logistics industry, the transportation volume of goods is increasing, and the requirement for loading and unloading efficiency is also increasing. The traditional loading and unloading method has been unable to meet the needs of modern logistics, so the loading is realized through the loading system. The loading system is a system for automatically loading goods, which is widely used in multiple industries to improve loading efficiency, reduce labor costs, improve safety, and realize automation and intelligentization of logistics operations.

[0003] When the loading system is working, it needs to realize the actions of lifting goods and conveying goods. In the prior art, for example, the existing scheme of a fork lifting mechanism with publication number CN117865018A, the outer fork and the inner fork cooperate, and the limiting mechanism limits the activity direction of the outer fork to only upward, thereby realizing the lifting function of the goods. The technical scheme has a complex structure, and an additional limiting mechanism needs to be provided. The outer fork needs to be provided with a limiting groove, a limiting shaft and other structures in cooperation with the limiting mechanism, which has a complex structure and a cumbersome production and assembly process.

[0004] In view of the problems existing in the prior art, the present application designs a fork loading system and a control method thereof. SUMMARY

[0005] In view of the problems existing in the prior art, the present application provides a fork loading system and a control method thereof, which can effectively solve at least one problem existing in the prior art.

[0006] The technical scheme of the present application is:

[0007] A fork loading system, comprising:

[0008] A platform assembly is provided with a plurality of tracks along its length direction;

[0009] A plurality of lifting fork assemblies are arranged on the tracks, each comprising an inner fork, an outer fork and a driving member. The outer fork is covered by the inner fork. The inner fork is provided with a plurality of inclined blocks at intervals. The outer fork is provided with a plurality of rollers at intervals. The rollers and the inclined blocks cooperate to lift the outer fork when the outer fork and the inner fork move relatively. The driving member is arranged at one end of the inner fork. The movable end of the driving member is provided with a pulley assembly for driving the outer fork to move relatively along the inner fork and providing rolling connection when lifting the outer fork.

[0010] A plurality of chain assemblies are arranged along the length direction of the platform assembly, and the chain assemblies are driven by a driving assembly, and the chain assemblies drive the lifting fork assembly to extend or retract along the track.

[0011] Further, the pulley assembly comprises a fixed seat, a pulley set and a movable seat, the fixed seat is fixedly connected to the movable end of the driving member, the pulley set is arranged at the rear end of the fixed seat, the movable seat is arranged outside the fixed seat, the rear end of the movable seat is provided with a first sliding surface, one end of the movable seat is fixedly connected to one end of the outer fork, when the fixed seat moves with the driving end of the driving member, the movable seat drives the outer fork to move relative to the inner fork, the first sliding surface and the pulley set provide rolling connection when the outer fork is lifted.

[0012] Further, the inner fork is provided with slide rails on the left and right sides of the movable end of the driving member, and the fixed seat is track-connected to the slide rails.

[0013] Further, the inclined block comprises an inclined surface and a horizontal surface, and the horizontal surface is arranged at the top end of the inclined surface.

[0014] Further, the pulley set is arranged at the rear upper end of the fixed seat, after the roller is driven by the movable seat to climb the inclined surface to the horizontal surface, the pulley set and the inner top surface of the movable seat provide rolling connection when the outer fork is moved horizontally.

[0015] Further, the front end of the movable seat is provided with a second sliding surface, the second sliding surface drives the roller to move on the horizontal surface to the inclined surface.

[0016] Further, the inner fork is provided with a plurality of rollers at the bottom surface thereof, and the rollers are rolling-connected to the track.

[0017] Further, a plurality of horizontal lifting assemblies are arranged, and all the horizontal lifting assemblies jointly support the platform assembly and drive the platform assembly to move horizontally or lift.

[0018] Further, side shaping devices are arranged on the left and right sides of the platform assembly.

[0019] Further, a control method of the fork loading system is provided, based on the fork loading system, in the process of lifting the outer fork by the lifting fork assembly, the chain assembly is controlled to drive the lifting fork assembly to move, so as to offset the horizontal displacement component of the outer fork.

[0020] Therefore, the present application provides the following effects and / or advantages:

[0021] The application sets a pulley assembly on the movable end of the driving member, which is used to drive the outer fork to move relatively along the inner fork and provide rolling connection when lifting the outer fork, so as to realize the working mode of pulling the outer fork horizontally and lifting the outer fork, and the pulley assembly realizes the low friction connection between the outer fork and the driving member during the lifting of the outer fork.

[0022] The pulley assembly of the application comprises a fixed seat, a pulley set and a movable seat, the rear end of the movable seat is provided with a first sliding surface, and the pulley assembly abuts against the rear end of the movable seat during the horizontal movement of the pulley assembly, so as to pull the movable seat to move and lift the movable seat along the rotation direction of the pulley set.

[0023] The application comprises a control method, and the control system is used to control the chain assembly to drive the lifting fork assembly to move to offset the horizontal displacement component of the outer fork during the lifting of the outer fork by the lifting fork assembly, so as to reduce the friction between the lifting fork assembly and the pallet and make the outer fork only move up and down relative to the platform assembly.

[0024] Other features and advantages of the application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the application. The objects and other advantages of the application will be realized and attained by the structure particularly pointed out in the description and the drawings.

[0025] It should be understood that the foregoing summary of the application and the following detailed description are exemplary and explanatory, and are intended to provide further explanation of the application as claimed. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The figure is a structural schematic diagram of the embodiment of the application.

[0027] Figure 2 The figure is an exploded structural schematic diagram of the lifting fork assembly.

[0028] Figure 3 The figure is an enlarged schematic diagram of part A of the figure. Figure 2

[0029] Figure 4 The figure is a bottom view of the outer fork.

[0030] Figure 5 The figure is a structural schematic diagram of the horizontal moving and lifting assembly.

[0031] Figure 6 The figure is a structural schematic diagram of the side shaping device. DETAILED DESCRIPTION

[0032] ​For the convenience of those skilled in the art to understand, the structure of the present application will be further described in detail in combination with the drawings of the embodiments:

[0033] Reference Figures 1-6 A fork loading system, comprising:

[0034] A platform assembly 1 is provided with a plurality of tracks 101 along its length direction;

[0035] The platform assembly 1 of the embodiment is used to support and arrange other components.

[0036] A plurality of lifting fork assemblies 2 are respectively laid on the tracks 101, each of the lifting fork assemblies 2 comprises an inner fork 201, an outer fork 202, and a driving member 203, the outer fork 202 is covered on the outer periphery of the upper end of the inner fork 201, a plurality of inclined blocks 2011 are arranged at intervals on the inner fork 201, a plurality of rollers 2021 are arranged at intervals on the outer fork 202, the rollers 2021 and the inclined blocks 2011 are matched to make the outer fork 202 and the inner fork 201 relatively move to lift the outer fork 202, the driving member 203 is arranged at one end of the inner fork 201, and the movable end of the driving member 203 is provided with a pulley assembly 3, which is used to drive the outer fork 202 to relatively move along the inner fork 201 and provide rolling connection when lifting the outer fork 202;

[0037] In the embodiment, the lifting fork assembly 2 and the pulley assembly 3 are one of the core improvements. The outer fork 202 is covered on the outer periphery of the upper end of the inner fork 201, so that the outer fork 202 can realize the moving structure in four directions of up, down, left and right, and the rollers 2021 and the inclined blocks 2011 are matched, the rollers 2021 can ascend or descend along the inclined blocks 2011 to drive the outer fork 202 to lift. During the lifting of the outer fork 202, on the one hand, the outer fork 202 and the inner fork 201 relatively move in the front and back directions, and on the other hand, the outer fork 202 and the inner fork 201 relatively move in the up and down directions, that is, the outer fork 202 moves obliquely upward. In order to realize the oblique upward movement of the outer fork 202, the driving member 203 in the embodiment drives the outer fork 202 to move forward and backward through the pulley assembly 3, and provides rolling connection to one end of the outer fork 202 when lifting the outer fork 202, so that the driving member 203 does not move in the vertical direction, and one end of the outer fork 202 is driven by the driving member 203 to realize lifting in a low-friction manner.

[0038] A plurality of chain assemblies 4 are respectively laid along the length direction of the platform assembly 1, the chain assemblies 4 are driven by a driving assembly 5, and the chain assemblies 4 drive the lifting fork assemblies 2 to extend or retract along the tracks 101.

[0039] In this embodiment, the driving assembly 5 drives the chain assembly 4, and further drives the lifting fork assembly 2 to extend into the container or the truck.

[0040] The working process of the fork loading system provided in this embodiment can be as follows.

[0041] S1, controlling the lifting fork assembly 2 to be in a descending state to receive the goods placed on the lifting fork assembly 2;

[0042] S2, after the loading on the lifting fork assembly 2 is completed, controlling the lifting fork assembly 2 to lift the goods;

[0043] S3, controlling the driving assembly 5 to drive the chain assembly 4 to drive the lifting fork assembly 2 to extend into the container or the truck;

[0044] S4, controlling the lifting fork assembly 2 to lower the goods, and controlling the driving assembly 5 to drive the chain assembly 4 to drive the lifting fork assembly 2 to exit the container or the truck, and completing the unloading.

[0045] Further, the pulley assembly 3 comprises a fixed seat 301, a pulley set 302 and a movable seat 303, the fixed seat 301 is fixedly connected to the movable end of the driving member 203, the pulley set 302 is arranged at the rear end of the fixed seat 301, the movable seat 303 is arranged outside the fixed seat 301, the rear end of the movable seat 303 is provided with a first sliding surface 3031, one end of the movable seat 303 is fixedly connected to one end of the outer fork 202, when the fixed seat 301 moves along with the driving end of the driving member 203, the movable seat 303 drives the outer fork 202 to relatively move along the inner fork 201, the first sliding surface and the pulley set 302 provide rolling connection when the outer fork 202 is lifted and lowered.

[0046] In this embodiment, the driving member 203 is a screw rod assembly, the movable nut of the screw rod assembly is fixedly connected with the fixed seat 301, so as to realize the front and rear transverse movement structure of the fixed seat 301, the movable seat 303 is movably arranged outside the fixed seat 301 in the up-down and front-back directions, when the fixed seat 301 drives the movable seat 303 to move backward, the pulley set 302 at the rear end of the fixed seat 301 abuts against the first sliding surface 3031, so as to reduce the friction resistance between the movable seat 303 and the fixed seat 301 when the movable seat 303 is lifted, and the movable seat 303 moves upward and backward at the same time in a rolling manner.

[0047] Further, the inner fork 201 is provided with slide rails 2012 on the left and right sides of the movable end of the driving member 203, and the fixed seat 301 is track-connected to the slide rails 2012.

[0048] The slide rail 2012 is arranged in a front-rear direction, thereby defining the moving direction of the fixed seat 301.

[0049] Further, the inclined block 2011 comprises an inclined surface and a horizontal surface, and the horizontal surface is arranged at the top end of the inclined surface.

[0050] Through the structure, when the outer fork 202 climbs to the top end of the inclined surface along the inclined surface, the roller 2021 reaches the horizontal surface, and the roller 2021 does not have a downward movement trend on the horizontal surface, thereby maintaining the lifting state after lifting the goods and reducing the exertion of force on the driving member 203.

[0051] Further, the pulley block 302 is arranged at the rear upper end of the fixed seat 301, and when the roller 2021 climbs the inclined surface to the horizontal surface, the pulley block 302 and the inner top surface of the movable seat 303 provide rolling connection when the outer fork 202 moves laterally.

[0052] Since the outer fork 202 can maintain the lifting state after lifting the goods under the action of the horizontal surface, in this state, the top end of the fixed seat 301 is supported on the movable seat 303, but at this time, the outer fork 202 still needs to move laterally on the horizontal surface, therefore, the pulley block 302 is further optimized in this embodiment and arranged at the rear upper end of the fixed seat 301, thereby enabling the outer fork 202 to abut against the first sliding surface 3031 of the movable seat 303 when climbing along the inclined surface, and abutting against the inner top surface of the movable seat 303 when moving laterally along the horizontal surface, thereby providing rolling connection in multiple working states.

[0053] Further, the front end of the movable seat 303 is provided with a second sliding surface 3032, and the second sliding surface pushes the movable seat 303 to drive the roller 2021 to move on the horizontal surface to the inclined surface.

[0054] Further, the inner fork 201 is provided with a plurality of rollers 204 at the bottom surface thereof, and the rollers 204 are in rolling connection with the track 101.

[0055] Further, the inner fork 201 is fixedly connected with a chain mounting seat 401, and the chain assembly 4 drives the inner fork 201 to move along the track 101 through the chain mounting seat 401.

[0056] In this embodiment, the chain assembly 4 drives the inner fork 201 to move along the track 101, thereby pushing out or retracting the lifting fork assembly 2.

[0057] Further, the lateral lifting assembly 6 is included, and the number thereof is several, and all the lateral lifting assemblies 6 jointly support the platform assembly 1 and drive the platform assembly 1 to move laterally or lift.

[0058] In this embodiment, the transverse lifting assembly 6 includes a leg assembly 601, a first driving cylinder 602, a second driving cylinder 603, a track assembly 604, the first driving cylinder 602 drives the leg assembly 601, so as to realize the lifting of the leg assembly 601, the leg assembly 601 is installed on the track assembly 604 through a pulley, adjacent leg assemblies 601 are connected together through a side shift frame assembly 605, the second driving cylinder 603 drives the leg assembly 601 to move left and right, so as to realize the transverse movement or lifting of the platform assembly 1.

[0059] Further, a side shaping device 7 is included, which is arranged on the left and right sides of the platform assembly 1.

[0060] The side shaping device 7 of this embodiment includes a roller row, which is arranged on the left and right sides of the platform assembly 1, so as to shape the left and right sides of the pallet of the goods during the output of the goods by the lifting fork assembly 2 and the chain assembly 4, and make the goods arranged neatly.

[0061] Further, a control method of the fork type loading system is provided, which is based on the fork type loading system, and in the process of lifting the outer fork 202 by the lifting fork assembly 2, the chain assembly 4 is controlled to drive the lifting fork assembly 2 to move, so as to offset the horizontal displacement component of the outer fork 202.

[0062] In the process of lifting the outer fork 202 by the lifting fork assembly 2, the driving member 203 drives the outer fork 202 to move transversely, and in the process of transverse movement of the outer fork 202, the roller 2021 and the inclined block 2011 cooperate to make the outer fork 202 lift, at this time, the moving direction of the outer fork 202 is oblique upward movement, and in the movement process, the outer fork 202 will produce relative displacement in the transverse direction with the bottom of the pallet, on the one hand, the pallet generates friction force on the outer fork 202, making it difficult for the outer fork 202 to move transversely, on the other hand, the outer fork 202 needs the driving member 203 to do extra work when lifting and moving transversely. Therefore, in the lifting process, for example, the outer fork 202 is pulled backward by the driving member, the chain assembly 4 drives the lifting fork assembly 2 to move forward, and the speed of pulling the outer fork 202 backward by the driving member in the lifting process is the same as the speed of moving forward of the lifting fork assembly 2 driven by the chain assembly 4, so that the transverse position of the outer fork 202 relative to the platform assembly 1 does not change, and the goods are lifted.

[0063] It is to be noticed that the terms of apprehension between brackets in the claims should not be construed as limiting the claims. The word 'comprising' does not exclude the presence of elements or steps other than those listed in a claim. The word 'a' or 'an' preceding an element does not exclude the presence of a plurality of such elements. It is appreciated that the application can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unitary claim drawn to several devices, the terms'means for' can cover both hardware and software implementing the recited functions. The terms 'first','second', 'third', etc. do not denote any order. These terms are to be interpreted as names.

[0064] Although the preferred embodiments of the application have been described, those skilled in the art will understand that they can be subjected to many changes and modifications without departing from the basic inventive concepts disclosed. Accordingly, the appended claims are intended to encompass within their scope all alternatives, modifications and variations as can be included within the scope of the present application.

[0065] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be interpreted in a broad sense, for example, can be fixed connection, can be detachable connection, or integral; can be mechanical connection, can be electrical connection; can be direct connection, can be indirect connection through intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0066] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

Claims

1. A forklift loading system, characterized in that: include: A platform assembly having a plurality of tracks arranged along its length; Several lifting fork assemblies are laid on the rails. Each lifting fork assembly includes an inner fork, an outer fork, and a drive unit. The outer fork covers the inner fork. Multiple inclined blocks are spaced between the inner forks, and multiple rollers are spaced between the outer forks. The rollers and inclined blocks cooperate to raise and lower the outer fork when it moves relative to the inner fork. The drive unit is located at one end of the inner fork, and a pulley assembly is provided at its movable end. The pulley assembly drives the outer fork to move relative to the inner fork and provides rolling connection for raising and lowering the outer fork. The pulley assembly includes a fixed base, a pulley block, and a movable base. The fixed base is fixedly connected to the drive unit. The movable end of the device has a pulley assembly located at the rear end of the fixed base. The movable base covers the outside of the fixed base. The rear end of the movable base has a first sliding surface. One end of the movable base is fixedly connected to one end of the outer fork. When the fixed base moves with the driving end of the driving member, the movable base drives the outer fork to move relative to the inner fork. The first sliding surface and the pulley assembly provide a rolling connection when the outer fork is raised or lowered. The inclined block includes an inclined surface and a horizontal surface. The horizontal surface is located at the top of the inclined surface. The front end of the movable base has a second sliding surface. The second sliding surface pushes the movable base to drive the roller to move on the horizontal surface toward the inclined surface. Several chain assemblies are laid along the length of the platform assembly. The chain assemblies are driven by a drive assembly, which in turn drives the lifting fork assembly to extend or retract along the track.

2. The forklift loading system according to claim 1, characterized in that: The inner fork is provided with slide rails on the left and right sides of the movable end of the drive member, and the fixed seat is connected to the slide rails.

3. The forklift loading system according to claim 1, characterized in that: The pulley assembly is located at the upper rear end of the fixed seat. After the movable seat drives the rollers to climb up the inclined plane and reach the horizontal plane, the inner top surfaces of the pulley assembly and the movable seat provide a rolling connection when the outer fork moves laterally.

4. The forklift loading system according to claim 1, characterized in that: The inner fork has multiple rollers on its bottom surface, and the rollers are rotatably connected to the track.

5. A forklift loading system according to claim 1, characterized in that: It includes several lateral lifting assemblies, all of which together support the platform assembly and drive the platform assembly to move laterally or move up and down.

6. A forklift loading system according to claim 1, characterized in that: It includes side shaping devices, which are disposed on the left and right sides of the platform assembly.

7. A control method for a forklift loading system, based on the forklift loading system according to any one of claims 1-6, characterized in that, During the process of the lifting fork assembly raising the outer fork, the chain assembly is controlled to drive the lifting fork assembly to move in order to counteract the horizontal displacement component of the outer fork.

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