CN109335590B

CN109335590B - Automatic control method for workpiece conveying production line

Info

Publication number: CN109335590B
Application number: CN201811357616.9A
Authority: CN
Inventors: 陈国�
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-11-15
Filing date: 2018-11-15
Publication date: 2021-07-27
Anticipated expiration: 2038-11-15
Also published as: CN109335590A

Abstract

The invention provides an automatic control method of a workpiece conveying production line, which comprises the following steps: s1, a user sends demand information through a terminal, wherein the demand information comprises address information of a station where the user is located; s2, the processor receives the requirement information and analyzes the requirement information, and the processor controls the moving motor to move the temporary storage pipeline containing the workpiece box to the conveyor belt where the address information is located according to the address information; s3, the processor controls the action of the air cylinder and puts the workpiece box on the conveyor belt; and S4, the processor controls the action of the conveying motor at the position of the conveying belt, and the workpiece box is moved to the corresponding station according to the address information. After each throwing, the quantity detection is needed, so that the phenomenon of missing throwing and wrong throwing is prevented, the accuracy of the whole assembly line is further ensured, and the production efficiency is further improved; the effect of automatically distributing the workpieces to the stations is achieved, the whole assembly line is more convenient and faster, and the working efficiency is higher.

Description

Automatic control method for workpiece conveying production line

Technical Field

The invention relates to the field of furniture production, in particular to an automatic control method of a workpiece conveying production line.

Background

In furniture production, a worker usually takes a workpiece by himself and then manufactures the workpiece. The mode not only influences the production efficiency of workers, but also is not easy to uniformly manage the workpieces.

Disclosure of Invention

The technical scheme of the invention is as follows: a method of controlling a workpiece transport line, the method comprising the steps of:

s1, a user sends demand information through a terminal, wherein the demand information comprises address information of a station where the user is located;

s2, the processor receives the requirement information and analyzes the requirement information, and the processor controls the moving motor to move the temporary storage pipeline containing the workpiece box to the conveyor belt where the address information is located according to the address information;

s3, the processor controls the action of the air cylinder and puts the workpiece box on the conveyor belt;

s4, the processor controls the action of a conveying motor at the position of the conveyor belt, and the workpiece box is moved to a corresponding station according to the address information;

wherein step S4 includes the process of:

s41, providing a preset time, and executing the step S42 if the sensor arranged between the ascending section conveyor belt and the horizontal section conveyor belt detects an object signal in the preset time after the cylinder acts; otherwise, go to step S43;

s42, judging that the workpiece box is normally put in, and moving the workpiece box to a corresponding station according to the address information;

s43, judging that the workpiece box is abnormally thrown in, and giving an alarm or returning to execute the step S3;

the requirement information comprises the address information and the number information of the workpiece boxes, and the address information comprises a conveyor belt physical address and a station physical address;

wherein step S3 includes the process of:

s31, the processor acquires the action times N of the air cylinder according to the number information of the workpiece boxes;

s32, carrying out N times of telescopic motion on a telescopic shaft of the air cylinder so as to throw N workpiece boxes on the conveying belt;

and, step S32 includes a process:

s321, judging whether N is 1, if so, executing step S322; otherwise, go to step S323;

s322, providing a first preset time, starting the conveyor belt after the cylinder telescopic shaft extends out, judging whether the image acquisition device detects the workpiece box within the first preset time, if so, judging that the putting is successful, and executing the step S4; otherwise, go to step S326;

s323, providing a second preset time and a collection frequency, and after the cylinder telescopic motion shaft performs telescopic motion for N times, all the image collection devices obtain a plurality of detection images within the second preset time according to the collection frequency;

s324, processing all the detection images, and judging the number of the workpiece boxes passing through the ascending section conveyor belt and the horizontal section conveyor belt within the second preset time;

s325, judging whether the number of the detected workpiece boxes is N, if so, judging that the throwing is successful, and executing a step S4; otherwise, go to step S326;

s326, judging that the releasing is unsuccessful, and giving an alarm;

wherein N is a positive integer.

Preferably, the larger N is, the longer the second preset time is.

Preferably, step S2 includes the process of:

s21, after receiving the demand information, the processor analyzes and obtains the conveyor belt physical address and the station physical address, and judges whether the address of the temporary storage pipeline at the moment is the same as the conveyor belt physical address; if yes, go to step S3; otherwise, go to step S22;

s22, controlling the moving motor to move the workpiece box to the conveyor belt where the conveyor belt physical address is located according to the conveyor belt physical address, and executing the step S3.

Preferably, after the workpiece box is put in and moved to the corresponding station, the processor controls the warning lamp at the station to flash so as to remind a user of taking the workpiece in time.

The technical scheme has the following advantages or beneficial effects: after each throwing, the quantity detection is needed, so that the phenomenon of missing throwing and wrong throwing is prevented, the accuracy of the whole assembly line is further ensured, and the production efficiency is further improved; by the automatic control method of the workpiece conveying assembly line, the effect of automatically distributing the workpieces to the stations is achieved, so that the whole assembly line is more convenient and faster, and the working efficiency is higher; the positioning is accurate, and the accurate putting of the workpiece is ensured; the additional starting of the moving motor is prevented, so that the whole flow of the production line is concise and complete; a user can require to put in a plurality of workpieces at a time, and the mode improves the working efficiency of the whole production line.

Drawings

Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings. The drawings are, however, to be regarded as illustrative and explanatory only and are not restrictive of the scope of the invention.

FIG. 1 is a schematic view of a workpiece transfer line according to the present invention;

FIG. 2 is a partial cross-sectional view of a workpiece transport line of the present invention;

FIG. 3 is a cross-sectional view of a conveyor in a workpiece transfer line according to the present invention;

FIG. 4 is a top view of a conveyor in the workpiece transfer line of the present invention;

FIG. 5 is a first flowchart illustrating a method for automatically controlling a workpiece transfer line according to the present invention;

FIG. 6 is a second flowchart illustrating an automatic control method for a workpiece transfer line according to the present invention;

FIG. 7 is a third flowchart of the method for automatically controlling a workpiece transfer line according to the present invention;

FIG. 8 is a partial flow chart of the method of automatic control of the workpiece transfer line of the present invention;

in the drawings: 1. a moving track; 11. a moving groove; 2. a mobile device; 21. a first roller; 22. mounting grooves; 23. a moving motor; 24. a roll shaft; 25. a second roller; 26. a vertical limiting plate; 27. a horizontal limiting plate; 3. a housing plate; 31. a moving channel; 4. temporarily storing a pipeline; 5. a cylinder; 6. a conveyor belt; 61. a support; 62. a conveying roller; 63. an upper run conveyor; 64. a horizontal section conveyor belt; 65. a baffle plate; 7. a station; 8. and a workpiece box.

Detailed Description

The automatic control method of the workpiece conveying line according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Example one

As shown in fig. 1, a workpiece conveying line comprises a workpiece dispensing device and a plurality of conveying devices arranged on the side edge of the workpiece dispensing device, wherein each conveying device comprises a conveying belt 6 and a conveying motor for driving the conveying belt 6 to rotate, and a plurality of stations 7 are arranged on the side edge of the conveying belt 6. In operation, if a certain station 7 needs a workpiece, the workpiece dispensing device dispenses the workpiece to the conveyor 6 where the station 7 is located, and the conveyor 6 moves the workpiece to the position where the station 7 is located.

As shown in fig. 2, the work issuing apparatus includes:

the moving track 1 is arranged, and the moving track 1 is perpendicular to the conveyor belt 6;

a moving device 2 which is arranged on the moving track 1 and moves along the moving track 1;

the accommodating plate 3 is fixedly arranged on the moving device 2 and moves along with the moving device 2, and a moving channel 31 is arranged in the accommodating plate 3;

the temporary storage pipeline 4 is arranged on the containing plate 3 and communicated with the moving channel 31, and the workpiece boxes are placed in the temporary storage pipeline 4 and the moving channel 31;

and the air cylinder 5 is fixedly arranged on the containing plate 3 and is positioned in the moving channel 31 of the containing plate 3.

In operation, the workpiece cassettes loaded with workpieces are arranged one above the other in the buffer storage channel 4, it being understood that the height of the displacement channel 31 is slightly greater than the height of the workpieces. Therefore, the bottommost workpiece cassette is located in the moving path 31. When a certain station 7 needs to dispense workpieces, the moving device 2 moves to the position of the conveyor belt 6 where the station 7 is located along the moving track 1, the telescopic shaft of the air cylinder 5 extends out to push out the bottommost workpiece box, the workpiece box moves onto the conveyor belt 6 along with the telescopic shaft, and the conveyor belt 6 conveys the workpiece box to the position where the station 7 is located. At the same time, the cylinder 5 is retracted, and the penultimate cassette falls into the moving tunnel 31. Through the device, the next conveying can be carried out normally. Through the assembly line, the effect of automatically distributing the workpieces to the stations 7 is achieved, the whole assembly line is more convenient and faster, and the working efficiency is higher.

In more detail, the moving device 2 includes a first roller 21, a mounting groove 22, a moving motor 23, and a roller. The mounting groove 22 is the back-off form, and first gyro wheel 21 is placed in moving track 1 and is arranged in the mounting groove 22 below, and mounting panel fixed mounting is in the mounting groove 22 upper end. The roller is fixedly connected with the first roller 21, penetrates through the center of the first roller 21, two ends of the roller respectively penetrate through two sides of the mounting groove 22 through bearings, one side of the roller, extending out of the mounting groove 22, is fixedly connected with an output shaft of the moving motor 23, and the moving motor 23 is fixedly mounted on the mounting groove 22. The forward and reverse rotation of the moving motor 23 drives the roller to rotate clockwise or counterclockwise, so that the first roller 21 moves forward or backward along the moving track 1. In addition, vertical limit plates are provided at both sides of the moving rail 1, and a second roller 25 is provided between the installation groove 22 and the two vertical limit plates, respectively. In addition, horizontal limit plates 27 are fixedly provided at upper ends of the two vertical limit plates, respectively, to prevent the second roller 25 from being separated from between the installation groove 22 and the vertical limit plates. The work of mobile motor 23, the rotation of output shaft drives the roller bearing and rotates, and then drives first gyro wheel 21 and second gyro wheel 25 and rotate for mounting groove 22 and the mounting panel that is located mounting groove 22, pipeline 4, the work piece box of keeping in remove, with this effect of realizing putting in the fixed point to the work piece.

In more detail, a moving groove 11 is formed in the moving rail 1, and the first roller 21 is located in the moving groove 11 and reciprocates along the moving groove 11.

Further, the workpiece transfer line further includes a processor electrically connected to all of the transfer motor, the moving motor 23, and the air cylinder 5. The processor is used for receiving the requirement information of the user, controlling the moving motor 23 to act according to the requirement information, throwing the workpiece to the corresponding conveyor belt 6, and then controlling the conveyor motor of the conveyor belt 6 to move, and throwing the workpiece to the user.

Further, as shown in fig. 3 and 4, the conveying device includes a support 61, a conveying motor fixed on the support 61, and a conveying roller 62 driven by the conveying motor and mounted on the support 61, the conveying belt 6 is mounted on the conveying roller 62, and the conveying motor drives the conveying roller 62 to rotate. The conveyor belt 6 includes an ascending conveyor belt 63 and a horizontal conveyor belt 64, and when the moving channel 31 moves to the conveyor belt, the middle position between the moving channel 31 and the ascending conveyor belt 63 is horizontal. During operation, the cylinder 5 pushes the workpiece box out, the workpiece box falls on the ascending section conveyor belt 63, the conveyor belt 6 moves, and the workpiece box moves along with the conveyor belt 6 and enters the horizontal section conveyor belt 64. Because the stations are all located beside the horizontal conveyor belt 64, the processor controls the transmission motor of the conveyor belt 6 to move according to the requirement information of the user, and the workpiece is put in the user. In this line, a two-segment conveyor belt is utilized to prevent the delivery inaccuracy from occurring when the cylinder 5 delivers the work box. With a conveyor belt of the rising type, the work cassette can fall on the conveyor belt 6 regardless of whether it is higher or lower as it comes out of the moving path 31. In addition, a baffle 65 is fixedly installed on the bracket 61, and the baffle 65 is positioned on two sides and the bottom end of the ascending section conveyor belt 63 so as to prevent the workpiece box from deflecting to fall outside the conveyor belt 6 when being thrown.

In a further approach, three image collectors electrically connected to the processor are disposed at the ascending conveyor 63 and the horizontal conveyor 64, and the image collectors are respectively located at two sides and right above the conveyor 6 and are used for acquiring images of the front side, the rear side and the upper portion of the workpiece cassette passing through the ascending conveyor 63 and the horizontal conveyor 64. If the workpiece box falls into the air cylinder, the subsequent operation is normally carried out, otherwise, the processor gives an alarm or controls the air cylinder 5 to act, and the workpiece box is put in again. Due to the arrangement of the sensors, the accuracy of the whole assembly line is guaranteed, the result can be accurately judged and put in, and the phenomenon of air drop is prevented.

Example two

Based on the workpiece conveying line proposed in the above embodiments, the present embodiment proposes an automatic control method of a workpiece conveying line.

As shown in fig. 5, an automatic control method of a workpiece transfer line includes the steps of:

s1, the user sends a demand message through the terminal, the demand message includes the address information of the user;

s2, the processor receives the demand information and analyzes the demand information, and controls the moving motor 23 to move the temporary storage pipeline 4 to the conveyor belt 6 where the address information is located according to the address information;

s3, the processor controls the cylinder 5 to act, and the workpiece box is put on the conveyor belt 6;

and S4, the processor controls the transmission motor at the position of the transmission belt 6 to work, and the workpiece box is moved to the corresponding position 7 according to the address information.

In the method, the user can send the demand information through a terminal, which can be an operating device arranged at the workstation 7 or a mobile terminal. After a user sends demand information through the terminal, the processor receives the information and processes the information, a station 7 corresponding to the demand information is judged, the mobile motor 23 is controlled to enable the mobile device 2 to be communicated with the temporary storage pipeline 4 to move to a conveyor belt 6 where the station 7 is located, a workpiece is put in through the air cylinder 5, and finally the workpiece is brought to the corresponding station 7 through the conveyor belt 6 and the air cylinder 5.

Further, the requirement information includes address information, and the address information includes a conveyor belt physical address and a station physical address. Therefore, the moving motor 23 moves all the workpiece boxes to the corresponding conveyor belts 6 according to the physical addresses of the conveyor belts, and the motor of the conveyor belt 6 moves the thrown workpiece boxes to the corresponding stations 7 according to the physical addresses of the stations. The mode has accurate positioning and ensures accurate putting of the workpiece.

Further, the requirement information further includes information on the number of workpieces. The processor judges the number of times of the operation of the cylinder 5 according to the information of the number of the workpieces.

Further, as shown in fig. 6, step S2 includes the process:

s21, after receiving the demand information, the processor analyzes and obtains the physical address of the conveyor belt and the physical address of the station, and judges whether the address of the temporary storage pipeline 4 at the moment is the same as the physical address of the conveyor belt; if yes, go to step S3; otherwise, go to step S22;

s22, controlling the moving motor 23 to move the workpiece box to the conveyor belt 6 where the conveyor belt physical address is located according to the conveyor belt physical address, and executing the step S3.

Through the judgment, the additional starting of the moving motor 23 is prevented, so that the whole flow of the production line is concise and complete.

Further, as shown in fig. 7, step S3 includes the process:

s31, the processor acquires the action times N (N is a positive integer) of the air cylinder 5 according to the workpiece box number information in the demand information;

and S32, performing N times of telescopic motion on the telescopic shaft of the air cylinder 5 to throw N workpieces on the conveyor belt 6.

The mode makes the user can require to put in a plurality of work piece boxes at a time, and the mode improves the work efficiency of the whole production line.

Further, as shown in fig. 8, step S32 includes the process:

s322, providing a first preset time, starting the conveyor belt 6 after the telescopic shaft of the air cylinder 5 extends out, judging whether the image acquisition device detects the workpiece box within the first preset time, if so, judging that the putting is successful, and executing the step S4; otherwise, go to step S326;

s323, providing a second preset time and a collection frequency, and after the telescopic motion shaft of the cylinder 5 performs telescopic motion for N times, all the image collection devices obtain a plurality of detection images within the second preset time according to the collection frequency;

s324, processing all the detection images, and judging the number of the workpiece boxes passing through the ascending section conveyor belt 63 and the horizontal section conveyor belt 64 within a second preset time;

s326, judging that the releasing is not successful, and giving an alarm.

In the method, the quantity detection is needed after each throwing, the phenomenon of missing throwing and wrong throwing is prevented, the accuracy of the whole assembly line is further ensured, and the production efficiency is further improved.

In a further aspect, the larger N is, the longer the second preset time is. Since the more the number of pieces of work put in, the longer the time required for transportation (if the work cassettes are not stacked together when put in the rising conveyor 63, the larger N, the longer the time for all the work cassettes to pass through the rising conveyor 63 and the horizontal conveyor 64), the more accurate the detection result can be obtained only after sufficient detection time is secured.

And in a further step, a warning lamp is arranged at the position of the station 7 and is also electrically connected with the processor. When the workpiece box is put in and moved to the corresponding station 7, the processor controls the warning lamp at the station 7 to flash so as to remind a user of taking a workpiece in time.

Various alterations and modifications will no doubt become apparent to those skilled in the art after having read the above description. Therefore, the appended claims should be construed to cover all such variations and modifications as fall within the true spirit and scope of the invention. Any and all equivalent ranges and contents within the scope of the claims should be considered to be within the intent and scope of the present invention.

Claims

1. A method for automatically controlling a workpiece transfer line, the method comprising the steps of:

wherein step S4 includes the process of:

wherein step S3 includes the process of:

and, step S32 includes a process:

s326, judging that the releasing is unsuccessful, and giving an alarm;

wherein N is a positive integer.

2. The method of claim 1, wherein the greater N, the longer the second predetermined time.

3. The automatic control method of a workpiece conveying line according to claim 1, wherein the step S2 includes a process of:

s22, controlling the moving motor to move the temporary storage pipeline of the workpiece box to the conveyor belt where the physical address of the conveyor belt is located according to the physical address of the conveyor belt, and executing the step S3.

4. The automatic control method for the workpiece conveying production line according to claim 1, wherein after the workpiece box is thrown and moved to the corresponding station, the processor controls a warning lamp at the station to flash to remind a user to take the workpiece in time.