CN111960080A - Parallel feeding and discharging system and method - Google Patents

Abstract

The invention provides a parallel feeding and discharging system, which comprises: the workpiece conveying device comprises a feeding conveying line, a first workpiece transfer device, drying equipment, a second workpiece transfer device and a discharging conveying line which are sequentially arranged, wherein the first workpiece transfer device is used for conveying workpieces of the feeding conveying line to the drying equipment, and the second workpiece transfer device is used for conveying workpieces in the drying equipment to the discharging conveying line; the drying equipment comprises a plurality of vacuum boxes; each workpiece transfer device comprises a guide assembly, a second transport mechanism and a driving assembly; the second conveying mechanism is provided with a plurality of stopping stations and a plurality of limiting units, and the limiting units are movably arranged at the stopping stations. The parallel loading and unloading system can pre-load a plurality of workpieces, can quickly supplement the workpieces to enter the vacuum box after one vacuum box is dried, and ensures that the vacuum boxes can continuously maintain the working state under the coordination of production beat, thereby improving the drying efficiency.

Description

Parallel feeding and discharging system and method

Technical Field

The invention relates to the technical field of vacuum, in particular to a parallel feeding and discharging system and a method.

Background

In part of production flows, the requirement on production takt is fast, for example, 10S/piece of workpiece is required to be produced, the workpiece can be dried in a drying process at least for more than 1min, if the drying process only processes one workpiece at a time, each workpiece needs to wait for the drying box to be empty to perform drying treatment on the next workpiece, workpiece accumulation is easy to cause, and the production efficiency is seriously influenced; if after calculating according to the takt, put into stoving case with a work piece at every turn, close the chamber door and begin to dry after putting into sufficient work piece, then can waste a lot of time and in the unloading in-process of waiting, influence production efficiency.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a parallel loading and unloading system and a method.

One embodiment of the present invention provides a parallel loading and unloading system, including: the workpiece conveying device comprises a feeding conveying line, a first workpiece transfer device, drying equipment, a second workpiece transfer device and a discharging conveying line which are sequentially arranged, wherein the first workpiece transfer device is used for conveying workpieces of the feeding conveying line to the drying equipment, and the second workpiece transfer device is used for conveying workpieces in the drying equipment to the discharging conveying line; wherein the content of the first and second substances,

the drying equipment comprises a plurality of vacuum boxes, wherein a first conveying mechanism and a sensing device are arranged in each vacuum box, the first conveying mechanism extends from an inlet to an outlet of each vacuum box, and the sensing device is used for detecting whether a workpiece exists in each vacuum box;

each workpiece transfer device comprises a guide assembly, a second conveying mechanism and a driving assembly, the two guide assemblies are respectively arranged along the inlets of the vacuum boxes and the outlets of the vacuum boxes, the second conveying mechanism is movably arranged on the guide assemblies, and the driving assembly drives the second conveying mechanism to move along the guide direction of the guide assemblies; the second conveying mechanism is provided with a plurality of stopping stations and a plurality of limiting units, and the limiting units are movably arranged at the stopping stations.

Compared with the prior art, the parallel loading and unloading system can pre-load a plurality of workpieces, can quickly supplement the workpieces to enter the vacuum box after one vacuum box is dried, and ensures that the vacuum boxes can continuously maintain the working state under the coordination of production rhythm, thereby improving the drying efficiency.

Further, the limiting unit comprises a blocking piece and a telescopic assembly; the stop piece is arranged at the tail end of the parking station and connected with the telescopic end of the telescopic assembly, and the telescopic assembly drives the stop piece to extend out of the parking station or retract from the parking station. The stop member and the telescoping assembly facilitate controlling movement of the workpiece on the second transport mechanism.

Furthermore, the second conveying mechanism further comprises a plurality of guide pieces, and the guide pieces are arranged on two sides of the stop station along the conveying direction of the second conveying mechanism. The guide piece ensures the correct advancing direction of the workpiece in the process of transportation.

Further, the adjacent parking stations are arranged on the second conveying mechanism at preset intervals. The limiting unit is guaranteed to be free from touching nearby workpieces when limiting the movement of the workpieces at a certain interval, and the workpieces are prevented from being damaged.

Furthermore, a plurality of stopping stations and a plurality of limiting units are arranged on the first conveying mechanism, and the stopping stations on the first conveying mechanism and the stopping stations on the second conveying mechanism are arranged in a one-to-one correspondence mode. The workpiece can be stably stopped in the vacuum box.

Further, a plurality of the parking stations are arranged in a plurality of rows in the conveying direction;

when the second conveying mechanism conveys the workpiece into the vacuum box and the first conveying mechanism conveys the workpiece to the second conveying mechanism, the limiting units corresponding to the stop stations in each row remove the limitation on the workpiece in the reverse direction along the conveying direction according to a preset time interval. Ensure the rapid and stable stopping of the workpiece.

Further, the preset time interval is larger than the time required by the limiting unit from the initial state to the limit of the position of the workpiece. The relative position change of the workpieces in the transportation process is responded, and the workpieces are prevented from being collided when the limiting units are used.

Compared with the prior art, the parallel loading and unloading system can pre-load a plurality of workpieces, can quickly supplement the workpieces to enter the vacuum box after one vacuum box is dried, and ensures that the vacuum boxes can continuously maintain the working state under the condition of matching production rhythm, so that the drying efficiency is improved; furthermore, the movement of the workpiece on the second conveying mechanism is convenient to control through the blocking piece and the telescopic assembly; furthermore, the guide piece ensures the correct advancing direction of the workpiece in the transportation process; furthermore, the limiting unit is ensured to be free from touching nearby workpieces when limiting the movement of the workpieces at certain intervals, so that the workpieces are prevented from being damaged; further, the workpiece can be stably stopped in the vacuum box through the limiting unit; furthermore, the workpiece is liberated at preset time intervals, so that the workpiece can be rapidly and stably stopped; furthermore, the relative position change of the workpiece in the transportation process is responded through enough preset time intervals, and the limit device is prevented from colliding the workpiece when the telescopic assembly drives the blocking piece.

Another embodiment of the present invention provides a parallel loading and unloading method, including:

s1) the second transportation mechanism loads the workpieces transported by the feeding transportation line;

s2) determining whether a workpiece is accommodated in the vacuum box by the sensing device,

s3) if the workpieces are not contained in the vacuum boxes, conveying the workpieces to the corresponding vacuum boxes, and if the workpieces are contained in the vacuum boxes, suspending the conveying by the second conveying mechanism;

s4) carrying out vacuum drying on the workpiece in the vacuum box;

s5) transporting the workpiece from the vacuum box to the second transport mechanism;

s6) conveying the workpieces to the blanking conveying line.

Compared with the prior art, the parallel loading and unloading method has the advantages that the plurality of workpieces are loaded in advance, the plurality of workpieces can be quickly supplemented into the vacuum box after one vacuum box is dried, the plurality of vacuum boxes can be ensured to be in a continuous working state under the coordination of production rhythm, and the drying efficiency is improved.

Further, step S1 includes:

s101) aligning one of the docking stations on the second conveying mechanism with the discharging end of the feeding conveying line;

s102) conveying the workpiece to the parking station, and controlling the limiting unit to limit the workpiece to move;

s103) repeating the steps until the workpieces are placed on all the stop stations on the second conveying mechanism.

Further, step S6 includes:

s601) aligning one of the docking stations on the second conveying mechanism with the feeding end of the blanking conveying line;

s602) the limiting unit removes the limitation on the workpiece;

s603) conveying the workpiece to the blanking conveying line;

s604) repeating the steps until all the workpieces on the second conveying mechanism are conveyed to the blanking conveying line.

In order that the invention may be more clearly understood, specific embodiments thereof will be described hereinafter with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of a parallel loading and unloading system according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of one side of a second conveying mechanism of the parallel loading and unloading system shown in FIG. 1;

FIG. 3 is a schematic structural diagram of the top of a second transportation mechanism of the parallel loading and unloading system shown in FIG. 1;

fig. 4 is a schematic structural diagram of a limiting unit of a parallel loading and unloading system according to another embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1, which is a schematic structural diagram of a parallel loading and unloading system according to an embodiment of the present invention. This unloading system of going up in parallel includes: the workpiece conveying device comprises a feeding conveying line 10, a first workpiece transfer device 20, drying equipment, a second workpiece transfer device 40 and a discharging conveying line 50 which are sequentially arranged, wherein the first workpiece transfer device 20 is used for conveying workpieces 60 of the feeding conveying line 10 to the drying equipment, and the second workpiece transfer device 40 is used for conveying the workpieces 60 in the drying equipment to the discharging conveying line 50; wherein the content of the first and second substances,

the drying equipment comprises a plurality of vacuum boxes 31, wherein a first conveying mechanism and a sensing device are arranged in each vacuum box 31, the first conveying mechanism extends from an inlet to an outlet of each vacuum box 31, and the sensing device is used for detecting whether a workpiece 60 exists in each vacuum box 31. The detection principle of the sensing device can be selected according to actual needs, for example, a proximity switch, an infrared sensor and the like can be adopted to detect whether the vacuum box 31 contains the workpiece 60; a weighing type device may be used to determine whether the vacuum box 31 contains the workpiece 60 by detecting the weight of the first conveying mechanism, but is not limited to this example.

Each workpiece transfer device comprises a guide assembly, a second conveying mechanism 21 and a driving assembly, the two guide assemblies are respectively arranged along the inlets of the vacuum boxes 31 and the outlets of the vacuum boxes 31, the second conveying mechanism 21 is movably arranged on the guide assemblies, and the driving assembly drives the second conveying mechanism 21 to move along the guide direction of the guide assemblies; please refer to fig. 2 and fig. 3, which are a schematic structural diagram of a side of the second conveying mechanism of the parallel loading and unloading system shown in fig. 1 and a schematic structural diagram of a top of the second conveying mechanism of the parallel loading and unloading system shown in fig. 1, respectively. The second transportation mechanism 21 is provided with a plurality of parking stations 22 and a plurality of limiting units 23, and the limiting units 23 are movably arranged at the parking stations 22. In this embodiment, the second transport mechanism 21 is a conveyor belt, which cooperates with two conveyor lines and is capable of carrying the workpieces 60 off of or into the conveyor lines, and the type of conveyor belt can be selected according to the workpieces 60. It should be noted that the driving assembly may be a screw driving assembly, a rotary motor translation driving assembly, a belt translation driving assembly, an air cylinder translation driving assembly, or a linear motor translation driving assembly, and the like, and is configured to drive the second transportation mechanism 21 to move.

Specifically, in some embodiments, the limiting unit 23 comprises a blocking member 24 and a telescopic assembly 25; the blocking member 24 is arranged at the tail end of the docking station 22 and is connected with a telescopic end of the telescopic assembly 25, and the telescopic assembly 25 drives the blocking member 24 to extend towards the docking station 22 or retract from the docking station 22. The telescopic assembly 25 may be an air cylinder, an electric cylinder, an oil pressure cylinder, or the like, and is disposed at the bottom or the side of the second transportation mechanism 21, and in some embodiments, it may also be a screw rod driving module, a rotating motor translation driving module, a belt translation module, an air cylinder translation driving module, a linear motor translation driving module, or the like, which can drive the blocking member 24 to move back and forth, similar to the principle of the air cylinder. In addition, in the present embodiment, one telescopic assembly 25 controls one blocking member 24 individually; referring to fig. 4, which is a schematic structural diagram of a limiting unit of a parallel loading and unloading system according to another embodiment of the present invention, the telescopic assemblies 25 can also control a plurality of blocking members 24 simultaneously, and each telescopic assembly 25 correspondingly controls the blocking member 24 to block a row of parking stations 22 along the direction of the second conveying mechanism. It should be noted that the limiting unit 23 can also be in other blocking forms, such as vacuum or magnetic attraction to the workpiece 60 on the docking station 22, but not limited to this example.

In order to ensure the safe operation of the stop units 23, in some embodiments, adjacent docking stations 22 are arranged on the second transport mechanism 21 at a predetermined interval from each other.

In order to ensure a stable transport of the workpieces 60, in some embodiments the second transport means 21 further comprises a plurality of guides 26, a plurality of said guides 26 being arranged on both sides of the docking station 22 in the transport direction of the second transport means 21. The guiding elements 26 may be selected from suitable guiding elements, such as guiding rods, guiding rails, guiding blocks, etc., according to the shape and structure of the workpiece 60, so as to ensure that the workpiece 60 moves in the correct forward direction during transportation. When the guide 26 is provided, the stopper unit 23 may also be provided on the guide 26.

In order to ensure that the workpiece 60 is stably stopped in the vacuum box 31, in some embodiments, a plurality of stopping stations 22 and a plurality of limiting units 23 are provided on the first transport mechanism, the stopping stations 22 on the first transport mechanism are arranged in a one-to-one correspondence with the stopping stations 22 on the second transport mechanism 21, wherein the first transport mechanism may also be provided as a conveyor belt of the same type as the second transport mechanism 21.

To further ensure stable docking of the workpiece 60 in the vacuum box 31, in some embodiments, a plurality of the docking stations 22 are arranged in n rows in the conveying direction, wherein the conveying direction along the second conveying mechanism 21 is the 1 st row and the 2 nd row 2 … … n; since the stop units 23 corresponding to n-1 can only start to extend out of the blocking member 24 for blocking when the n rows of workpieces 60 reach the stop station 22 on the first transport mechanism, if each row of workpieces 60 starts to be transported after the last row of workpieces 60 reaches the stop station 22, the transport time is increased, but if all the workpieces 60 simultaneously get rid of the limitation and move to the first transport mechanism in the vacuum box 31, because there may be a deviation of the relative positions of the workpieces 60 during the transport of the workpieces 60, in order to avoid the stop units 23 damaging the workpieces 60 or jamming the stop units 23, the distance between the stop stations 22 must be increased to ensure a sufficient buffer space, which results in an increase of the equipment area, or a decrease of the workpieces 60 that can be dried simultaneously. Therefore, when the second conveying mechanism conveys the workpieces 60 into the vacuum box 31 and the first conveying mechanism conveys the workpieces 60 to the second conveying mechanism, the limiting units 23 corresponding to each row of the stop stations 22 remove the limitation on the workpieces 60 at preset time intervals in the reverse direction of the conveying direction, at this time, when the workpieces 60 in the n rows reach the stop stations 22, the workpieces 60 in the n-1 rows need to reach the corresponding stop stations 22 for a preset time interval, and at this time, enough time is provided for controlling the blocking piece 24 to move to the position forming the limitation on the workpieces 60, so that the blocking piece 24 does not collide with the workpieces 60 in the n rows and the n-1 rows in the moving process. In addition, it should be noted that other types of limiting units 23 can be used to set the predetermined time interval, because the relative position of the workpieces 60 may be deviated during the transportation of the workpieces 60. In some embodiments, the predetermined time interval is greater than the time required for the stop unit 23 to form a position limit for the workpiece 60 from the initial state. It should be noted that, when the parking stations 22 are arranged in n rows and m lines, the conveyor belt of the second conveying mechanism 21 may also be in the form of a plurality of conveyor belts, each conveyor belt corresponding to one row of the parking stations 22,

the parallel loading and unloading system provided by the application also correspondingly provides a parallel loading and unloading method applied to the system, and the parallel loading and unloading system comprises the following steps:

s1) the second conveyance mechanism 21 loads the workpiece 60 conveyed from the loading conveyor line 10. In some embodiments, the step of S1 further comprises the steps of:

s101) aligning one of the docking stations 22 on the second transportation mechanism 21 with the discharge end of the feeding conveying line 10;

s102) conveying the workpiece 60 to the parking station 22, and controlling the limiting unit 23 to limit the workpiece 60 to move;

s103) repeating the steps until all the docking stations 22 on the second transportation mechanism 21 are provided with the workpieces 60.

It should be noted that, when the workpieces 60 are arranged in 1 column and n rows, the 1 st row of the stop station 22 on the second transport mechanism 21 is aligned with the discharge end of the feeding conveyor line 10, the workpiece 60 is moved to the stop station 22, then the second transport mechanism 21 is moved to the 2 nd row, and then the workpiece 60 is moved to the stop station 22, thereby completing the movement of the n rows of workpieces 60 in turn; when the workpieces 60 are arranged in n rows and 1 lines, because the workpieces 60 have only 1 line, the stop station 22 of the second transportation mechanism 21 is aligned with the discharge end of the feeding and conveying line 10, then the workpieces 60 move to the nth row, the limiting unit 23 is started, then the workpieces 60 move to the (n-1) th row, the limiting unit 23 is started, and the process is sequentially cycled until the workpieces 60 are moved; when the workpieces 60 are arranged in n rows and n lines, if each limiting unit 23 correspondingly controls the workpieces 60 of one line of the stop stations 22 to limit, the stop stations 22 of the second transportation mechanism 21 are sequentially aligned with the stop stations 22 of the 1 st line to the nth line to finish the movement of the workpieces 60 of the nth line, and then the stop stations 22 of the second transportation mechanism 21 are sequentially aligned with the stop stations 22 of the 1 st line to the nth line to finish the movement of the workpieces 60 of the n-1 th line, and the process is sequentially circulated until the movement of the workpieces 60 is finished; when the workpieces 60 are arranged in n rows and n columns, if each limiting unit 23 correspondingly controls the workpiece 60 of one stop station 22 to limit, after the stop station 22 in the 1 st row of the second transportation mechanism 21 is aligned with the discharge end of the feeding conveyor line 10, after the movement of the workpieces 60 in the 1 st row and the 1 st column … … in the 1 st row and the 1 st column is completed, the second transportation mechanism 21 is moved, the stop station 22 in the 2 nd row is aligned with the discharge end of the feeding conveyor line 10, and then the movement of the workpieces 60 in the 2 nd row and the 1 st column … … in the 2 nd row and the n column is performed, and the process is sequentially repeated until the movement of the workpieces 60 is completed.

S2) the sensing means judges whether or not the workpiece 60 is accommodated in the vacuum box 31,

s3) if the vacuum box 31 does not contain the workpiece 60, conveying the workpiece 60 to the corresponding vacuum box 31, and if the vacuum box 31 contains the workpiece 60, suspending the conveyance by the second conveyance mechanism 21;

s4) vacuum drying the workpiece 60 in the vacuum box 31;

s5) conveying the workpiece 60 from the vacuum box 31 to the second conveying mechanism 21;

s6) conveying the workpiece 60 to the blanking conveyor line 50. In some embodiments, the step of S6 further comprises:

s601) aligning one of the docking stations 22 on the second transport mechanism 21 with the feeding end of the blanking conveying line 50;

s602) the limiting unit 23 releases the limitation on the workpiece 60;

s603) conveying the workpiece 60 to the blanking conveying line 50;

s604) repeating the above steps until all the workpieces 60 on the second transport mechanism 21 are transported to the blanking transport line.

The manner of transporting the workpieces 60 on the second transport mechanism 21 of the second workpiece transfer device 40 to the blanking mechanism for the movement of the workpieces 60 in different rows and columns is the same as the manner of transporting the workpieces 60 on the second transport mechanism 21 of the first workpiece transfer device 20 in the loading transport line.

Compared with the prior art, the parallel loading and unloading system can pre-load a plurality of workpieces, can quickly supplement the workpieces to enter the vacuum box after one vacuum box is dried, ensures that the vacuum boxes can continuously maintain the working state under the condition of matching production rhythm, and improves the drying efficiency

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a unloading system in parallel which characterized in that includes: the workpiece conveying device comprises a feeding conveying line, a first workpiece transfer device, drying equipment, a second workpiece transfer device and a discharging conveying line which are sequentially arranged, wherein the first workpiece transfer device is used for conveying workpieces of the feeding conveying line to the drying equipment, and the second workpiece transfer device is used for conveying workpieces in the drying equipment to the discharging conveying line; wherein the content of the first and second substances,

the drying equipment comprises a plurality of vacuum boxes, wherein a first conveying mechanism and a sensing device are arranged in each vacuum box, the first conveying mechanism extends from an inlet to an outlet of each vacuum box, and the sensing device is used for detecting whether a workpiece exists in each vacuum box;

each workpiece transfer device comprises a guide assembly, a second conveying mechanism and a driving assembly, the two guide assemblies are respectively arranged along the inlets of the vacuum boxes and the outlets of the vacuum boxes, the second conveying mechanism is movably arranged on the guide assemblies, and the driving assembly drives the second conveying mechanism to move along the guide direction of the guide assemblies; the second conveying mechanism is provided with a plurality of stopping stations and a plurality of limiting units, and the limiting units are movably arranged at the stopping stations.

2. The parallel loading and unloading system of claim 1, wherein: the limiting unit comprises a blocking piece and a telescopic assembly; the stop piece is arranged at the tail end of the parking station and connected with the telescopic end of the telescopic assembly, and the telescopic assembly drives the stop piece to extend out of the parking station or retract from the parking station.

3. The parallel loading and unloading system of claim 1, wherein: the second conveying mechanism further comprises a plurality of guide pieces, and the guide pieces are arranged on two sides of the stop station along the conveying direction of the second conveying mechanism.

4. The parallel loading and unloading system of claim 1, wherein: the adjacent parking stations are arranged on the second conveying mechanism at preset intervals.

5. The parallel loading and unloading system according to any one of claims 1 to 4, wherein: the first conveying mechanism is provided with a plurality of stopping stations and a plurality of limiting units, and the stopping stations on the first conveying mechanism and the stopping stations on the second conveying mechanism are arranged in a one-to-one correspondence mode.

6. The parallel loading and unloading system of claim 5, wherein:

the plurality of parking stations are arranged in a plurality of rows in the conveying direction;

when the second conveying mechanism conveys the workpiece into the vacuum box and the first conveying mechanism conveys the workpiece to the second conveying mechanism, the limiting units corresponding to the stop stations in each row remove the limitation on the workpiece in the reverse direction along the conveying direction according to a preset time interval.

7. The parallel loading and unloading system of claim 6, wherein: the preset time interval is larger than the time required by the limiting unit from the initial state to the limit of the workpiece position.

8. A parallel loading and unloading method is applied to the parallel loading and unloading system of any one of claims 1 to 7, and is characterized by comprising the following steps:

s1) the second transportation mechanism loads the workpieces transported by the feeding transportation line;

s2) determining whether a workpiece is accommodated in the vacuum box by the sensing device,

s3) if the workpieces are not contained in the vacuum boxes, conveying the workpieces to the corresponding vacuum boxes, and if the workpieces are contained in the vacuum boxes, suspending the conveying by the second conveying mechanism;

s4) carrying out vacuum drying on the workpiece in the vacuum box;

s5) transporting the workpiece from the vacuum box to the second transport mechanism;

s6) conveying the workpieces to the blanking conveying line.

9. The parallel loading and unloading method as claimed in claim 8, wherein step S1 includes:

s101) aligning one of the docking stations on the second conveying mechanism with the discharging end of the feeding conveying line;

s102) conveying the workpiece to the parking station, and controlling the limiting unit to limit the workpiece to move;

s103) repeating the steps until the workpieces are placed on all the stop stations on the second conveying mechanism.

10. The parallel loading and unloading method as claimed in claim 8, wherein the step S6 includes:

s601) aligning one of the docking stations on the second conveying mechanism with the feeding end of the blanking conveying line;

s602) the limiting unit removes the limitation on the workpiece;

s603) conveying the workpiece to the blanking conveying line;

s604) repeating the steps until all the workpieces on the second conveying mechanism are conveyed to the blanking conveying line.

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