CN212863031U

CN212863031U - Tray recovery equipment for tray replacement

Info

Publication number: CN212863031U
Application number: CN202021356058.7U
Authority: CN
Inventors: 黄炜焕; 卢衍湘; 张冠华; 陈端阳; 林仁兴
Original assignee: Longhe Intelligent Equipment Manufacturing Co Ltd
Current assignee: Longhe Intelligent Equipment Manufacturing Co Ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-04-02
Anticipated expiration: 2030-07-10

Abstract

The utility model relates to a tray recovery device for replacing trays, which comprises a conveyor, a sub-tray placing machine, a tray converter and a main tray collecting machine; the sub-tray placing machine is arranged on one side of the conveyor and comprises a rack, a tray support, a first servo electric cylinder, a clamping arm assembly, a second servo electric cylinder, a first motor and an electrical system, wherein the tray support is arranged on the rack, the tray support is used for placing a sub-tray, and the clamping arm assembly is positioned above the tray support; the first servo electric cylinder is connected with the clamping arm assembly and is used for driving the clamping arm assembly to move relatively in the vertical direction; be different from prior art, the utility model discloses whether the moment of torsion that can gather first servo electric jar detects sub-tray and prevents to target in place, but also can compress tightly goods buttress and tray, prevents sub-tray landing.

Description

Tray recovery equipment for tray replacement

Technical Field

The utility model relates to a commodity circulation technical field, in particular to tray recovery plant for tray is changed.

Background

With the rapid development of science and technology, information technology, automatic production technology and commercial economy, stereoscopic warehouses are adopted in many industries to store materials. For the purpose of information management, the trays in the stereoscopic warehouse generally adopt a two-dimensional code or a chip-embedded mode, and the cost of the whole tray is relatively high. In the warehouse-out process, the mother trays used by the stereoscopic warehouse need to be recovered and replaced by the low-cost sub trays, so that the logistics turnover cost is reduced. The traditional mode adopts the mode of manual handling, and the goods after coming out of stereoscopic warehouse are restacked, loaded through the manual work. The whole tray is low in replacement efficiency and has potential safety hazards.

With the rapid development of the scientific and technical level of China, more and more enterprises adopt automatic equipment for loading. Most enterprises have three different loading modes according to the difference of downstream customers:

1. the goods out of the warehouse need to be subjected to tray recovery, and the goods are loaded without trays;

2. the goods out of the warehouse need to be replaced by the primary and secondary trays, and the goods are loaded after the trays are replaced;

3. the goods delivered from the warehouse are directly loaded without tray treatment.

The tray machine of tradition adopts the fork dress formula to change, and the condition of taking away the tray easily appears, is not suitable for the condition of plane unevenness on the goods buttress moreover.

More information related to the above technical solution can be found in the following documents, for example, chinese patent publication No. CN 108569540 a discloses a tray replacing system and a tray replacing method, the tray replacing system includes a first conveying mechanism and a second conveying mechanism; the first conveying mechanism comprises a first conveying device which can convey the sub-trays to the second conveying mechanism; the second conveying mechanism comprises a second conveying device and a tray replacing device, and the tray replacing device can receive the sub-trays from the first conveying mechanism and clamp the sub-trays above the tray replacing device by turning 180 degrees; the second conveying device can convey the primary tray bearing the goods to the tray replacing device, the primary tray bearing the goods is located below the tray replacing device, the primary tray and the secondary tray are respectively located at the bottom and the top of the goods and borne by the secondary tray through the tray replacing device turning 180 degrees, and the first conveying device can receive the secondary tray bearing the goods and convey the secondary tray away from the tray replacing system.

Further, as disclosed in chinese patent publication No. CN 108069261B, it is not necessary to use a forklift to obtain a pallet to be replaced or to position the pallet at a predetermined position during pallet replacement work. A tray replacing device (200) carries a tray (A) loaded with goods into a working part (P1), and a tray (B) supplied by a tray supply mechanism (8) is introduced into the working part (P1) through a first workbench (40) to replace the tray. The tray supply mechanism (8) is provided with: a tray holding mechanism (80) for holding the trays (B) in multiple stages in a tray holding space (S40) above the standby position of the first table (40) and separating the tray (B1) at the lowest layer; a guide rail (16) provided between the tray holding space (S40) and the standby position of the first table (40); a tray support (82) which supports the first tray (B1) at the lowermost layer from below and whose base end (822) is slidably supported by the guide rail (16); and a lifting mechanism (83) for lifting the tray support body (82) along the guide rail (16).

In the process of implementing the invention, the inventor finds that the following problems exist in the prior art, and the prior art only discloses how to replace the mother pallet and the son pallets through equipment, and does not solve the problem that the son pallets are easy to take away in the placing process, and also does not solve the problem that the son pallets are easy to place and incline when the plane on the goods stack is uneven.

SUMMERY OF THE UTILITY MODEL

Therefore, the tray recovery device for tray replacement is needed to be provided, and is used for solving the technical problems that the sub-trays are easy to take away in the placement process, and when the plane on the goods stack is uneven, the sub-trays are easy to place and incline.

To achieve the above object, the inventors provide a tray recycling apparatus for tray replacement, the tray recycling apparatus including a conveyor, a sub-tray player, a tray changer, and a main tray stacker;

the child tray placing machine is arranged on one side of the conveyor, the tray converter is arranged in the conveying direction of the conveyor, and the parent tray collecting machine is arranged on one side of the tray converter;

the sub-tray placing machine comprises a rack, a tray support, a first servo electric cylinder, a clamping arm assembly, a second servo electric cylinder, a first motor and an electrical system, wherein the tray support is arranged on the rack, the tray support is used for placing a sub-tray, and the clamping arm assembly is positioned above the tray support;

the first servo electric cylinder is arranged on the rack and connected with the clamping arm assembly, and the first servo electric cylinder is used for driving the clamping arm assembly to move relatively in the vertical direction;

the second servo electric cylinder is arranged on the rack and used for driving the clamping arm assembly to clamp or release the sub-tray of the tray support;

the first motor is arranged on the rack and connected with the clamping arm assembly, and the first motor is used for driving the clamping arm assembly to convey the sub-trays to the upper part of the goods stack;

the electric system is used for detecting the torsion of the first servo electric cylinder and the second servo electric cylinder and controlling the first servo electric cylinder, the second servo electric cylinder and the first motor.

As the utility model discloses a preferred structure, the arm lock subassembly includes first arm lock, second arm lock and sliding support, the last second slide rail that is provided with of sliding support, first arm lock with the second arm lock passes through the second slide rail sets up sliding support's both sides.

As a preferred structure of the utility model, first arm lock with the second arm lock is connected through the cooperation transmission of first gear with first rack, the servo electric jar of second sets up on the sliding support, the servo electric jar of second the output with the transmission of second arm lock is connected, the servo electric jar of second is used for the drive the second arm lock is followed second slide rail direction relative motion.

As a preferred structure of the utility model, first arm lock with all be provided with the block rubber on the second arm lock, the block rubber is located first arm lock or on the clamping part of second arm lock.

As a preferred structure of the utility model, the first clamping arm is provided with more than two rubber blocks along the horizontal direction; and/or

The second clamping arm is provided with more than two rubber blocks along the horizontal direction.

As the utility model discloses a preferred structure, the frame includes the balladeur train, be provided with the first slide rail of two relative settings on the balladeur train, the arm lock subassembly is through two relative settings first slide rail sets up on the balladeur train, first servo electric jar sets up on the balladeur train, the output of first servo electric jar with the arm lock subassembly transmission is connected, first servo electric jar is used for the drive the arm lock subassembly is along two relative settings first slide rail direction relative motion.

As a preferred structure of the utility model, the frame includes the third slide rail, first motor passes through the sliding seat setting and is in on the third slide rail, the arm lock subassembly is fixed on the sliding seat, first motor is used for the drive the sliding seat is followed third slide rail relative slip.

As a preferred structure of the utility model, the output of first motor is provided with the second gear, first motor passes through the second gear is connected with first sprocket feed, be provided with in the frame first chain, first chain with the third slide rail sets up relatively, first motor passes through first sprocket with the cooperation of first chain is used for the drive the arm lock subassembly is followed third slide rail direction relative motion.

As a preferred structure of the utility model, tray recovery plant still includes the second motor, the second motor sets up in the frame, be provided with the fourth slide rail in the frame, the tray support sets up on the fourth slide rail, the second motor is used for the drive the tray support is followed fourth slide rail direction relative motion.

As a preferred structure of the utility model, be provided with the second chain in the frame, the second chain is followed fourth slide rail direction sets up, the cooperation is provided with the second sprocket on the second chain, the second chain with second sprocket intermeshing, the second motor is used for the drive through the cooperation of second sprocket and second chain the tray support is followed fourth slide rail direction relative motion.

Different from the prior art, the sub-trays on the tray support are clamped through the clamping arm assemblies in the technical scheme, when the sub-trays are put down, the sub-trays can be placed on the goods stack by loosening the clamping arm assemblies, and the situation that the sub-trays are easily taken away in the placing process is prevented; because first servo electric jar can drive the arm lock subassembly and push down sub-tray to goods buttress direction, when plane unevenness on the goods buttress, can flatten it through sub-tray, prevent that sub-tray from placing the condition of slope. The sub-tray pallet placing machine can collect the torque of the first servo electric cylinder to detect whether the sub-tray is prevented from being in place or not, and can also compress the goods stack and the tray to prevent the sub-tray from sliding down.

Drawings

FIG. 1 is a flow chart of a tray recycling method for tray replacement according to an embodiment;

FIG. 2 is a schematic view of a tray recovery apparatus for tray replacement according to an embodiment;

FIG. 3 is a schematic structural diagram of a sub-pallet stocker according to an embodiment;

FIG. 4 is an enlarged schematic view at A in FIG. 3;

FIG. 5 is a schematic view of another angle of the sub-pallet player according to an embodiment;

FIG. 6 is a schematic diagram of an embodiment of the clamp arm assembly;

fig. 7 is a schematic structural diagram of the gear and rack in accordance with an embodiment.

Description of reference numerals:

1. the tray converter is provided with a tray converter,

2. a disc collecting machine for a female tray,

3. a sub-tray placing machine for placing the sub-trays,

31. a tray support is arranged on the tray body,

32. the rubber block is provided with a rubber block,

33. a clamping arm component is arranged on the upper portion of the clamping arm,

33a and a first clamping arm, a second clamping arm,

33b and a second clamping arm, wherein,

34. a fourth slide rail, a second slide rail,

35. the first gear wheel is provided with a first gear wheel,

36. a first rack bar which is arranged on the first side of the frame,

37. a first slide rail, a second slide rail,

38. a first servo electric cylinder, a second servo electric cylinder,

39. a second servo electric cylinder is arranged on the second cylinder,

40. the sliding frame is provided with a sliding frame,

41. a first photoelectric support is arranged on the first side of the frame,

42. the sliding support is provided with a sliding support which is provided with a sliding support,

421. a second slide rail is arranged on the second slide rail,

43. a first motor for driving the motor to rotate,

431. a sliding seat is arranged on the base plate,

432. a second gear wheel is arranged on the first gear wheel,

44. a first chain wheel and a second chain wheel,

45. a first chain which is used for driving the chain wheel,

46. a second photoelectric bracket is arranged on the first photoelectric bracket,

47. a third photoelectric support is arranged on the first photoelectric support,

48. a machine frame, a plurality of guide rails and a plurality of guide rails,

49. a third slide rail is arranged on the second slide rail,

50. the second chain is arranged on the second chain,

51. a second motor for driving the motor to rotate,

52. an output shaft of the second motor is connected with the first motor,

53. a second chain wheel is arranged on the second chain wheel,

4. a conveying machine, a conveying device and a conveying device,

5. a transfer machine is arranged on the conveying device,

6. chain machine.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described with reference to the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

Referring to fig. 1, the present embodiment relates to a tray recycling method for tray replacement, including the following steps:

s101, conveying the goods stack to a first position by a conveyor, wherein the first position is located on one side of a sub-tray placing machine;

s102, detecting whether a sub-tray exists on the tray support by the sub-tray player, if the sub-tray exists on the tray support, driving the clamping arm assembly to descend to a specified position by a trigger signal through the first servo electric cylinder, and enabling the specified position to be located above the tray support;

s103, after the clamping arm assembly reaches the designated position, a first clamping arm and a second clamping arm of the clamping arm assembly are driven by a second servo electric cylinder to clamp the sub-tray on the tray support;

in the step S103, the second servo electric cylinder drives the first clamping arm and the second clamping arm of the clamping arm assembly to continuously clamp the sub-pallet, and detects whether the clamping torque of the second servo electric cylinder is higher than a second preset value, and if the clamping torque of the second servo electric cylinder is higher than the second preset value, the motor drives the clamping arm assembly to convey the sub-pallet to the upper side of the cargo stack.

At this moment, first arm lock and second arm lock can press from both sides tightly sub-tray, and the position of adjustment sub-tray prevents that sub-tray from placing the unevenness when piling up, and the inaccurate condition of position of placing that leads to sub-tray takes place.

Preferably, first arm lock and second arm lock all are provided with three rubber piece, through three point elastic clamping, are applicable to the anomalous condition in tray both sides.

S104, the first motor drives the clamping arm assembly to convey the sub-tray to the upper side of the goods stack, and the first servo electric cylinder drives the clamping arm assembly to descend to place the sub-tray on the goods stack;

s105, the first servo electric cylinder continues to drive the clamping arm assembly to press the sub-pallet downwards towards the goods stack direction, whether the pressing torque of the first servo electric cylinder is higher than a first preset value or not is detected,

s106, if the pressing torque of the first servo electric cylinder is higher than a first preset value, triggering signals to enable the second servo electric cylinder to loosen the sub-tray, and enabling the clamping arm assembly to return to the initial position;

optionally, in this embodiment, the first preset value is 1N · m, and the second preset value is 1.5N · m. Specifically, when the electric system acquires that the clamping torque of the second servo cylinder reaches 1.5-2.4N · m, it can be judged that the sub-pallet is clamped. When the electric system acquires that the pressing torque of the first servo electric cylinder reaches 1-1.5 N.m, the pressure can be released, and the sub-tray is released.

At the moment, the situation that the sub-tray is not placed in place and easily slides down when the topmost end of the goods stack is uneven can be prevented.

After the clamping arm assembly returns to the initial position, the tray support detects whether the sub-trays on the tray support reach the designated position, if the sub-trays on the tray support do not reach the designated position, the second motor drives the tray support to ascend by one tray position, the sub-trays on the tray support reach the designated position, and the actions are repeated until the sub-trays on the tray support are completely placed.

Therefore, the sub-tray is taken from the tray support, the tray position is lifted by one, and the working efficiency of placing the sub-tray is improved.

S107, after the sub-trays are placed, the conveyer conveys the goods stack together with the sub-trays to a second position, the second position is located at a conversion station of a tray converter, the tray converter clamps the goods stack together with the sub-trays, the goods stack is rotated by 180 degrees, the main tray is located above the goods stack, and the sub-trays are located below the goods stack;

and S108, taking out the female pallet by the female pallet collecting machine, carrying out code disc operation, and conveying the goods stack together with the sub-pallets to the next station by the conveyor.

Optionally, after the step of conveying the goods stack to the next station together with the sub-trays by the conveyor, judging whether the mother tray is a single-side use tray, if the mother tray is the single-side use tray, the mother tray stacker conveys the mother tray stack after stacking to a tray converter, the tray converter rights the mother tray, and if the mother tray is a double-side use tray, the mother tray stack after stacking is conveyed back to the stereoscopic warehouse.

At the moment, the mother tray after the code disc is conveniently arranged and returned, and the mother tray is not required to be turned over by other equipment.

As shown in fig. 2 to 7, the present embodiment further relates to a tray recycling apparatus for tray replacement, which includes a tray changer 1, a parent tray stacker 2, a child tray player 3, a conveyor 4, a transfer conveyor 5, and a chain conveyor 6. The conveyer 4 is used for transporting the goods buttress, moves and carries machine 5 setting in one side of female tray closing machine 2 for the female tray that returns is retrieved with female tray closing machine 2 transports tray converter 1, conveyer 4 again, arranges in order, returns.

The sub tray placing machine 3 is arranged on one side of the conveyor 4, the tray converter 1 is arranged in the conveying direction of the conveyor 4, and the main tray collecting machine 2 is arranged on one side of the tray converter 1; the child tray putting machine 3 is used for placing child trays above a goods stack, the tray converter 1 is used for rotating the goods stack together with the child trays by 180 degrees, the mother tray collecting machine 2 is used for collecting the mother trays, the principle of the mother tray collecting machine 2 is the same, the child tray putting machine 3 is used for putting, the mother tray collecting machine 2 is used for collecting, the child tray putting machine 3 and the mother tray collecting machine 2 are the same device, and only the working sequence is opposite.

As shown in fig. 3 to 5, the sub-tray player 3 includes a rack 48, a tray support 31, a first servo electric cylinder 38, a clamping arm assembly 33, a second servo electric cylinder 39, a first motor 43, and an electrical system, the tray support 31 is disposed on the rack 48, the tray support 31 is used for placing the sub-tray, the clamping arm assembly 33 is disposed on the rack 48 through a first slide rail 37, and the clamping arm assembly 33 is located above the tray support 31;

the first servo electric cylinder 38 is arranged on the rack 48, the first slide rail 37 is arranged in the vertical direction of the rack 48, the first servo electric cylinder 38 is used for driving the clamping arm assembly 33 to move up and down along the first slide rail 37, the clamping arm assembly 33 comprises a first clamping arm 33a and a second clamping arm 33b, the first clamping arm 33a and the second clamping arm 33b are connected with each other through a second slide rail 421, the second servo electric cylinder 39 is arranged on the rack 48, and the second servo electric cylinder 39 is used for driving the first clamping arm 33a and the second clamping arm 33b to move mutually along the second slide rail 421, so that the first clamping arm 33a and the second clamping arm 33b clamp the sub-tray on the tray support 31;

the first motor 43 is arranged on the rack 48, the first motor 43 is used for driving the clamping arm assembly 33 to convey the sub-pallets to the upper side of the goods stack through the matching of the first chain wheel 44 and the first chain 45, and the electrical system is used for detecting the torsion of the first servo electric cylinder 38 and the second servo electric cylinder 39 and controlling the first servo electric cylinder 38, the second servo electric cylinder 39 and the first motor 43.

A first photoelectric mount 41, a second photoelectric mount 46, and a third photoelectric mount 47 are provided on the chassis 48. The first photoelectric support 41, the second photoelectric support 46 and the third photoelectric support 47 are all provided with photoelectric sensors (not shown in the figure) for detecting the positions of the components. It should be noted that in other embodiments, the components may be detected in other manners, and all are within the protection scope of the present embodiment.

Wherein the first photoelectric bracket 41 is disposed on the carriage 40 for detecting the position of the clamping arm assembly 33 in the vertical direction (the direction indicated by the arrow z in the figure). A second photoelectric bracket 46 is disposed on one side of the first chain 45 for detecting the position of the clamping arm assembly 33 in the horizontal direction (the direction indicated by the arrow x in the figure). The third photoelectric support 47 is disposed on one side of the fourth slide rail 34, and is used for detecting the position of the tray support 31 in the vertical direction (the direction indicated by the arrow z in the figure).

So, sub-tray buttress is placed on tray support 31, and arm lock subassembly 33 presss from both sides the sub-tray of the top of sub-tray buttress, and at this moment, through the first arm lock 33a of second servo electric cylinder 39 drive and press from both sides tightly sub-tray with second arm lock 33b, prevent that sub-tray from placing the unevenness when piling up, lead to the inaccurate condition of position of placing of sub-tray to take place. Original sub-tray equipment of putting is through fork truck's mode, with the fork lift of sub-tray, does not have the position of adjusting sub-tray, when leading to sub-tray to put in goods buttress top easily, the position of sub-tray is inaccurate, need manual readjustment, wastes time and energy.

Furthermore, three rubber blocks 32 arranged on the first clamping arm 33a and the second clamping arm 33b are used for contacting the sub-tray, and the three-point elastic clamping is suitable for the irregular conditions on two sides of the tray. Sometimes, the both sides face of sub-tray is not complete plane, and unevenness's condition can appear, when leading to arm lock subassembly 33 centre gripping, has pressed from both sides sub-tray askew, and at this moment, utilize the rubber block 32 on first arm lock 33a and the second arm lock 33b, rubber block 32 has elasticity, can be applicable to the anomalous condition in tray both sides, guarantees that sub-tray centre gripping position is correct level and smooth. In other embodiments, the rubber block 32 may be replaced by other elastic members, and is within the scope of the present embodiment.

After the clamping is completed, the clamping arm assembly 33 is driven by the first servo electric cylinder 38 to move upwards with the sub-pallet, and the specific structure is described as follows.

Optionally, the rack 48 includes a carriage 40, two first slide rails 37 disposed opposite to each other are disposed on the carriage 40, the clamping arm assembly 33 is disposed on the carriage 40 through the two first slide rails 37 disposed opposite to each other, a first servo electric cylinder 38 is disposed on the carriage 40, an output end of the first servo electric cylinder 38 is in transmission connection with the clamping arm assembly 33, and the first servo electric cylinder 38 is configured to drive the clamping arm assembly 33 to move relatively along the two first slide rails 37 disposed opposite to each other.

In this way, the first servo electric cylinder 38 can drive the clamping arm assembly 33 to move relatively along the two first slide rails 37 arranged oppositely, so as to maintain the stability of the sub-tray on the clamping arm assembly 33, the sub-tray moves up and down in the vertical direction (the direction indicated by the arrow z in the figure), and the positions of the left side and the right side of the sub-tray are ensured by the two first slide rails 37 arranged in the vertical direction (the direction indicated by the arrow z in the figure) of the rack 48.

The sub-pallet is raised to a predetermined position by the gripper arm assembly 33, and the gripper arm assembly 33 is driven by the first motor 43 to move in the horizontal direction toward the stack of goods, and the specific structure thereof is as described below.

As shown in fig. 3 and 4, optionally, the rack 48 includes a third slide rail 49, the first motor 43 is disposed on the third slide rail 49 through a slide seat 431, the clamp arm assembly 33 is fixed on the slide seat 431, the output end of the first motor 43 is provided with a second gear 432, the first motor 43 is in transmission connection with the first sprocket 44 through the second gear 432, the first chain 45 is disposed on the rack 48 and is disposed opposite to the third slide rail 49, and the first motor 43 is used for driving the clamp arm assembly 33 to move relatively along the third slide rail 49 through the cooperation between the first sprocket 44 and the first chain 45.

In this way, the first motor 43 can drive the clamping arm assembly 33 to move relatively along the third slide rail 49, so as to maintain the stability of the sub-tray on the clamping arm assembly 33, the sub-tray moves relatively in the horizontal direction (the direction indicated by the arrow x in the figure), and the horizontal displacement of the sub-tray is ensured by the two third slide rails 49 arranged in the horizontal direction (the direction indicated by the arrow x in the figure) of the rack 48.

The first motor 43 drives the clamping arm assembly 33 to reach the upper part of the goods stack, the first servo electric cylinder 38 drives the clamping arm assembly 33 to press the sub-pallet downwards towards the goods stack, whether the pressing torque of the first servo electric cylinder 38 is higher than a first preset value or not is detected, if the pressing torque of the first servo electric cylinder 38 is higher than the first preset value, a trigger signal is sent to release the sub-pallet through the second servo electric cylinder 39, and the clamping arm assembly 33 returns to the initial position.

At this time, since the first servo electric cylinder 38 drives the clamping arm assembly 33 to press the sub-pallet down to the goods stack, the goods stack provides a supporting force to the clamping arm assembly 33 upwards, the supporting force is finally reflected on the pressing torque of the first servo electric cylinder 38, the pressing force is about large, and the pressing torque of the first servo electric cylinder 38 is larger. Original sub-tray equipment of putting is through fork truck's mode, with the back of sub-tray fork, directly puts sub-tray on the goods buttress, if the phenomenon of unevenness appears in the top of goods buttress, sub-tray probably inclines to be put on the goods buttress, even directly slides down along the incline direction of goods buttress, when resulting in sub-tray to put in goods buttress top, sub-tray is the state of unevenness. And first servo electric cylinder 38 drive arm lock subassembly 33 and take sub-tray to push down to the goods buttress, can make sub-tray keep under the level and smooth state, when loosening sub-tray, when preventing that the top of goods buttress from appearing the unevenness, sub-tray does not put in place, the condition that easily glides appears.

After the clamping arm assembly 33 returns to the initial position, the tray support 31 detects whether the sub-tray on the tray support 31 reaches the designated position, if the sub-tray on the tray support 31 does not reach the designated position, the second motor 51 drives the tray support 31 to ascend by one tray position, so that the sub-tray on the tray support 31 reaches the designated position, and the above actions are repeated until all the sub-trays on the tray support 31 are discharged, and the specific structure is described as follows.

Optionally, the tray recycling device further includes a second motor 51, the second motor 51 is disposed on the rack 48, the rack 48 is provided with a fourth slide rail 34, the tray support 31 is disposed on the fourth slide rail 34, and the second motor 51 is used for driving the tray support 31 to move relatively along the direction of the fourth slide rail 34 through the cooperation of the second chain wheel 53 and the second chain 50. The second chain wheel 53 is disposed on the output shaft 52 of the second motor, the second chain wheel 53 is engaged with the second chain 50, the second motor 51 is a speed reduction motor, and when the output shaft 52 of the second motor rotates, the second chain 50 can drive the tray support 31 to move up and down along a vertical direction (as indicated by an arrow z in the figure).

Therefore, the tray support 31 can move relatively along the fourth slide rail 34 by the second motor 51, so that the sub-trays on the tray support 31 can be transported to a preset position, and the clamping arm assembly 33 can clamp the sub-trays conveniently.

As shown in fig. 6 and 7, optionally, the clamping arm assembly 33 includes a sliding support 42, a second slide rail 421 is disposed on the sliding support 42, the first clamping arm 33a and the second clamping arm 33b are disposed on two sides of the sliding support 42 through the second slide rail 421, the first clamping arm 33a and the second clamping arm 33b are in transmission connection with the first rack 36 through the first gear 35, a second servo electric cylinder 39 is disposed on the sliding support 42, an output end of the second servo electric cylinder 39 is in transmission connection with the second clamping arm 33b, and the second servo electric cylinder 39 is used for driving the second clamping arm 33b to move relatively along the direction of the second slide rail 421.

So, can be through the cooperation of first gear 35 and first rack 36, drive first arm lock 33a and second arm lock 33b simultaneously and move along second slide rail 421, guarantee the simultaneous movement of first arm lock 33a and second arm lock 33b, the dynamics of being convenient for first arm lock 33a and second arm lock 33b to the pair tray left and right sides centre gripping is unanimous.

Different from the prior art, the sub-trays on the tray support 31 are clamped through the first clamping arm 33a and the second clamping arm 33b of the clamping arm assembly 33, when the sub-trays are put down, the first clamping arm 33a and the second clamping arm 33b of the clamping arm assembly 33 are loosened, the sub-trays can be put on the goods stack, and the situation that the sub-trays are easy to take away in the placing process is prevented; because first servo electric cylinder 38 drive arm lock subassembly 33 pushes down the sub-tray to goods buttress direction, when the plane unevenness on the goods buttress, can flatten it through the sub-tray, prevent that the sub-tray from placing the condition of slope. Whether the sub-pallet is prevented from being in place can be detected by collecting the torque of the first servo electric cylinder 38, and the goods stack and the pallet can be slightly pressed and attached to prevent the sub-pallet from sliding down.

It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.

Claims

1. A tray recovery apparatus for tray replacement, characterized in that: the tray recovery equipment comprises a conveyor, a sub-tray placing machine, a tray converter and a main tray collecting machine;

2. The tray recycling apparatus for tray replacement according to claim 1, wherein: the clamping arm assembly comprises a first clamping arm, a second clamping arm and a sliding support, a second sliding rail is arranged on the sliding support, and the first clamping arm and the second clamping arm are arranged on two sides of the sliding support through the second sliding rail.

3. The tray recycling apparatus for tray replacement according to claim 2, wherein: the first clamping arm is connected with the second clamping arm through the matching transmission of a first gear and a first rack, the second servo electric cylinder is arranged on the sliding support, the output end of the second servo electric cylinder is connected with the second clamping arm in a transmission mode, and the second servo electric cylinder is used for driving the second clamping arm to move relatively in the direction of the second sliding rail.

4. The tray recycling apparatus for tray replacement according to claim 2, wherein: the first clamping arm and the second clamping arm are respectively provided with a rubber block, and the rubber blocks are located on the clamping parts of the first clamping arm or the second clamping arm.

5. The tray recycling apparatus for tray replacement according to claim 4, wherein: the first clamping arm is provided with more than two rubber blocks along the horizontal direction; and/or

6. The tray recycling apparatus for tray replacement according to claim 1, wherein: the frame includes the balladeur train, be provided with the first slide rail of two relative settings on the balladeur train, the arm lock subassembly is through two relative settings first slide rail sets up on the balladeur train, first servo electric jar sets up on the balladeur train, the output of first servo electric jar with the arm lock subassembly transmission is connected, first servo electric jar is used for the drive the arm lock subassembly is along two relative settings first slide rail direction relative motion.

7. The tray recycling apparatus for tray replacement according to claim 1, wherein: the rack comprises a third slide rail, the first motor is arranged on the third slide rail through a sliding seat, the clamping arm assembly is fixed on the sliding seat, and the first motor is used for driving the sliding seat to slide relatively along the third slide rail.

8. The tray recycling apparatus for tray replacement according to claim 7, wherein: the output of first motor is provided with the second gear, first motor passes through the second gear is connected with first sprocket drive, be provided with first chain in the frame, first chain with the third slide rail sets up relatively, first motor passes through first sprocket with the cooperation of first chain is used for the drive the arm lock subassembly is followed third slide rail direction relative motion.

9. The tray recycling apparatus for tray replacement according to claim 1, wherein: the tray recovery equipment further comprises a second motor, the second motor is arranged on the rack, a fourth sliding rail is arranged on the rack, the tray support is arranged on the fourth sliding rail, and the second motor is used for driving the tray support to move relatively along the direction of the fourth sliding rail.

10. The tray recycling apparatus for tray replacement according to claim 9, wherein: the rack is provided with a second chain, the second chain is arranged along the direction of the fourth slide rail, a second chain wheel is arranged on the second chain in a matching mode, the second chain is meshed with the second chain wheel, and the second motor is used for driving the tray support to move along the direction of the fourth slide rail in a matching mode through the second chain wheel and the second chain.