Arrangement control method for neatening stacked plates

Abstract

The invention provides a tidying control method for tidying stacked plates, and belongs to the field of plate tidying. The plate arranging device comprises an arranging platform and a frame, an arranging structure is arranged on the frame, and a plate moving and position adjusting structure is arranged on the arranging platform. The full-automatic vertical warehouse has the beneficial effects that an assembly line type automatic program is adopted from stacking of the boards to arrangement and transportation of the stacked boards, multiple carrying is not needed in the one-time warehousing process, manual intervention is greatly reduced, the working efficiency of the vertical warehouse is improved, and the labor intensity of workers is reduced. And the stacked plates are neatened through the neatening structure and the plate moving and position adjusting structure, the stacking precision degree is improved, and the situation that the stacked plates incline and deviate is reduced.

Description

Technical Field

[0001] The present invention belongs to the field of sheet material regularization, and particularly relates to a sorting control method for stacking and regularizing sheet materials. Background Art

[0002] In the furniture raw material processing production line, an automated stereoscopic warehouse stores materials on shelves in a three-dimensional manner and performs storage, retrieval, and handling through automated equipment. During the processes of storage, retrieval, and handling, the sheet materials are prone to offset and tilt, causing the stacker to alarm and reducing work efficiency. However, when the existing stereoscopic warehouse regularizes the stacked sheet materials, it often only conducts regularization once or the regularization structure is simple, which easily leads to the situation of the stacked sheet materials tilting and offsetting, thus increasing the sorting difficulty when finally putting them into the stereoscopic warehouse.

[0003] Therefore, it is necessary to invent a control method for sheet material regularization to solve the problem of offset and tilt of sheet materials caused by multiple handling. Compared with the traditional stereoscopic warehouse, it greatly reduces manual intervention and improves the work efficiency of the stereoscopic warehouse.

[0004] For example, a Chinese patent document discloses a stacker for a sheet material stereoscopic warehouse [Patent Application No.: CN202211572685.8], which includes a ground rail. A column is movably connected inside the ground rail, a turning platform is movably connected to the bottom of the column, a fork seat is movably connected inside the column, a chain conveyor frame is fixedly connected to the outer surface of the ground rail, a rack is fixedly connected to one side of the ground rail, ground rail pressure codes are fixedly connected to both sides of the bottom of the ground rail, ground rail sleepers are fixedly connected to the bottom of the ground rail, and a sky rail is fixedly connected to the top of the ground rail. Summary of the Invention

[0005] The purpose of the present invention is to address the above problems and provide a sorting control method for stacking and regularizing sheet materials.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A sorting control method for stacking and regularizing sheet materials includes a regularization platform and a frame. A regularization structure is provided on the frame, and a sheet material moving and position-adjusting structure is provided on the regularization platform;

[0008] Step 1: Transport and place the sheet materials on the regularization platform and stack them up in sequence;

[0009] Step 2: Detect the height of the stacked sheet materials through a detection device;

[0010] Step 3: When the detection device detects that the stacked sheet materials do not exceed the specified height, move the frame to make the stacked sheet materials located inside the frame, and regularize the stacked sheet materials through the regularization structure and the sheet material moving and position-adjusting structure;

[0011] Step 4: Conduct an external inspection on the rectified plates;

[0012] Step 5: Store the rectified plates in the warehouse.

[0013] In the above-mentioned method for controlling the stacking and rectifying of plates, in Step 2, when the detection device detects that the height of the stacked plates exceeds the specified height, it is manually selected whether to continue rectifying. If it is selected to continue rectifying, Step 3 is continued; if it is selected not to continue rectifying, the rectifying steps are exited.

[0014] In the above-mentioned method for controlling the stacking and rectifying of plates, the rectifying structure includes a front baffle cylinder, a rear baffle cylinder, and a side pushing and positioning cylinder. The output shaft of the front baffle cylinder is connected to the front baffle, the output shaft of the rear baffle cylinder is connected to the rear baffle, the output shaft of the side pushing and positioning cylinder is connected to the side plate, and the rear baffle cylinder is connected to the frame through a lifting mechanism. In Step 3, the output shaft of the side pushing and positioning cylinder extends to make the side plate in the positioning position, the output shaft of the front baffle cylinder extends to make the front baffle in the positioning position, and the rear baffle cylinder moves downward under the action of the lifting mechanism so that the position of the rear baffle corresponds to the stacked plates. Then, the rear baffle cylinder works to make the rear baffle approach and push the stacked plates, and cooperates with the side plate and the front baffle to make the stacked plates abut against the front baffle, the rear baffle, and the side plate, thus completing the rectification.

[0015] In the above-mentioned method for controlling the stacking and rectifying of plates, in Step 3, during the process of the rear baffle cylinder moving downward under the action of the lifting mechanism, the plate moving and adjusting structure works to make the stacked plates move in the direction close to the front baffle and the side plate.

[0016] In the above-mentioned method for controlling the stacking and rectifying of plates, the plate moving and adjusting structure includes a horizontal conveying roller and a vertical conveying roller. In Step 3, the rotation of the horizontal conveying roller makes the stacked plates move in the direction close to the side plate, and the rotation of the vertical conveying roller makes the stacked plates move in the direction close to the front baffle. And during the process of the rectifying structure rectifying the stacked plates, the horizontal conveying roller and the vertical conveying roller are always in a rotating state, and when the rectifying structure finishes rectifying, the horizontal conveying roller and the vertical conveying roller buffer for 4 seconds and then stop rotating, thus completing Step 3.

[0017] In the above-mentioned method for controlling the stacking and rectifying of plates, the rectifying structure will count when rectifying, and the count is incremented by 1 each time of rectifying. When the stacked plates are rectified once, that is, when the count = 1, the length of the plates is judged;

[0018] Step 3.1: When the length of the sheet is equal to 2745 mm, retract the rear baffle cylinder, and the horizontal conveyor roller and the vertical conveyor roller reverse for 2 seconds and then stop. When the length of the sheet is equal to 2445 mm, retract the rear baffle cylinder, and the horizontal conveyor roller and the vertical conveyor roller reverse for 3.5 seconds and then stop;

[0019] After completing Step 3.1, continue to repeat Step 3 to further regularize the sheet. At this time, the count is incremented by 1 so that the count = 2, and then enter Step 4.

[0020] In the above method for controlling the stacking and regularization of sheets, in the step, if the shape detection is qualified, retract all cylinders and move the frame to the initial position to complete the regularization task;

[0021] If the shape detection is unqualified, manually select whether to continue regularizing this stack of sheets, or continue to regularize a new stack of sheets after retrieving this stack of sheets.

[0022] In the above method for controlling the stacking and regularization of sheets, the front baffle is used to provide a positioning reference surface for regularizing the stack of sheets, the rear baffle is used to provide a greater force so that the sheet can obtain greater kinetic energy in a short time to impact the positioning reference surface, and the side baffle is used for auxiliary positioning of the long side surface of the sheet.

[0023] In the above method for controlling the stacking and regularization of sheets, after the regularization action is completed, the shape control error of the stack of sheets is detected to be within 3 centimeters to ensure the regularization effect.

[0024] In the above method for controlling the stacking and regularization of sheets, the height data error of the sheet is detected to be within ±18 MM. If the height error is too large, the operator needs to manually confirm whether the sheet is stored in the warehouse.

[0025] Compared with the existing technology, the advantages of the present invention are as follows:

[0026] 1. From stacking the sheets to regularizing and transporting the stacked sheets, a pipeline-type automated program is adopted. During one warehousing process, it is not necessary to carry out multiple transports, which greatly reduces the manual intervention and improves the working efficiency of the automated storage and retrieval system. Moreover, the stacked sheets are regularized through the regularization structure and the sheet movement and position adjustment structure, improving the accuracy of stacking and reducing the occurrence of tilting and offset of the stacked sheets.

[0027] 2. The front baffle cylinder, the rear baffle cylinder, and the side push positioning cylinder cooperate with the horizontal conveyor roller and the vertical conveyor roller to assist in regularizing and positioning the sheets, so that the stacked sheets after regularization are not prone to tilting and offset. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the logical flow block diagram of this method;

[0029] Figure 2It is a schematic diagram of the structural position during regularization.

[0030] In the figure: regularization platform 10, frame 11, regularization structure 12, sheet moving and positioning structure 13, front baffle cylinder 14, rear baffle cylinder 15, side push positioning cylinder 16, front baffle 17, rear baffle 18, side plate 19, lifting mechanism 20, horizontal conveying roller 21, vertical conveying roller 22. Specific implementation manner

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0032] This embodiment provides a sorting control method for stacking and regularizing sheets. In combination with Figure 1-2 as shown, it includes a regularization platform 10 and a frame 11. A regularization structure 12 is provided on the frame 11, and a sheet moving and positioning structure 13 is provided on the regularization platform 10;

[0033] Step 1: Transport and place the sheets on the regularization platform 10 and stack them up in sequence;

[0034] Step 2: Detect the height of the stacked sheets through a detection device;

[0035] Step 3: When the detection device detects that the stacked sheets do not exceed the specified height, move the frame 11 to make the stacked sheets located inside the frame 11, and regularize the stacked sheets through the regularization structure 12 and the sheet moving and positioning structure 13;

[0036] Step 4: Perform an external shape detection on the regularized sheets;

[0037] Step 5: Store the regularized sheets in the warehouse.

[0038] In step 2, when the detection device detects that the height of the stacked sheets exceeds the specified height, it is manually selected whether to continue regularization. If it is selected to continue regularization, step 3 is continued. If it is selected not to continue regularization, the regularization step is exited.

[0039] The described regular structure 12 includes a front baffle cylinder 14, a rear baffle cylinder 15, and a side push positioning cylinder 16. The output shaft of the front baffle cylinder 14 is connected to the front baffle 17. The output shaft of the rear baffle cylinder 15 is connected to the rear baffle 18. The output shaft of the side push positioning cylinder 16 is connected to the side plate 19. The rear baffle cylinder 15 is connected to the frame 11 through a lifting mechanism 20. In step 3, the output shaft of the side push positioning cylinder 16 extends to make the side plate 19 in the positioning position. The output shaft of the front baffle cylinder 14 extends to make the front baffle 17 in the positioning position. The rear baffle cylinder 15 moves downward under the action of the lifting mechanism 20 so that the position of the rear baffle 18 corresponds to the stacked sheets. Then the rear baffle cylinder 15 works to make the rear baffle 18 approach and push the stacked sheets, and cooperate with the side plate 19 and the front baffle 17 to make the stacked sheets abut against the front baffle 17, the rear baffle 18, and the side plate 19, thus completing the regularization.

[0040] In step 3, during the process that the rear baffle cylinder 15 moves downward under the action of the lifting mechanism 20, the sheet moving and adjusting structure 13 works to make the stacked sheets move in the direction close to the front baffle 17 and the side plate 19.

[0041] The described sheet moving and adjusting structure 13 includes a horizontal conveying roller 21 and a vertical conveying roller 22. In step 3, the rotation of the horizontal conveying roller 21 makes the stacked sheets move in the direction close to the side plate 19. The rotation of the vertical conveying roller 22 makes the stacked sheets move in the direction close to the front baffle 17. And during the process that the regular structure 12 regularizes the stacked sheets, the horizontal conveying roller 21 and the vertical conveying roller 22 are always in a rotating state. And when the regular structure 12 finishes regularization, the horizontal conveying roller 21 and the vertical conveying roller 22 buffer for 4 seconds and then stop rotating, thus completing step 3.

[0042] When the regular structure 12 regularizes, it will count, and the count is incremented by 1 each time. When the stacked sheets are regularized once, that is, when the count = 1, the length of the sheets is judged.

[0043] Step 3.1: When the sheet length is equal to 2745 mm, retract the rear baffle cylinder 15, and the horizontal conveying roller 21 and the vertical conveying roller 22 reverse for 2 seconds and then stop. When the sheet length is equal to 2445 mm, retract the rear baffle cylinder 15, and the horizontal conveying roller 21 and the vertical conveying roller 22 reverse for 3.5 seconds and then stop.

[0044] After completing step 3.1, continue to repeat step 3 to further regularize the sheets. At this time, the count is incremented by 1 to make the count = 2, and then step 4 is entered.

[0045] In step 4, if the appearance inspection is qualified, retract all cylinders and move the frame 11 to the initial position to complete the regularization task.

[0046] If the appearance inspection fails, manually select whether to continue to regularize the stack of plates, or continue to regularize a new stack of plates after retrieving the stack of plates.

[0047] With the help of the front baffle 17, a positioning reference surface is provided for regularizing the plate stack. With the help of the rear baffle 18, a greater acting force is provided to enable the plate to obtain greater kinetic energy in a short time and impact the positioning reference surface. The side baffle 19 is used for auxiliary positioning of the long side surface of the plate.

[0048] After the regularization action is completed, the shape control error of the inspected plate stack is guaranteed within 3 cm to ensure the regularization effect.

[0049] The height data error of the inspected plate is within ±18 MM. If the height error is too large, the operator needs to manually confirm whether the plate is stored in the warehouse.

[0050] In this embodiment, all the detection and execution elements in the system, as well as the communication with the peripheral devices, are under the overall control of the PLC controller.

[0051] Control the motor drive through the industrial bus method to achieve automatic start and stop;

[0052] Receive information from the WCS and the plate through the Ethernet communication method, and judge the destination and size specifications of the plate;

[0053] Receive the detection signal of the photoelectric sensor through the controller, and mark the plate to determine the position of the plate;

[0054] Detect the height of the plate stack through the laser range finder sensor;

[0055] Rotate the plate by a certain angle through the frame for regularization;

[0056] Control the front baffle cylinder 14, the rear baffle cylinder 15 and the side push positioning cylinder 16 through the solenoid valve to cooperate with the horizontal conveyor roller 21 and the vertical conveyor roller 22 to assist in the regularization and positioning of the plate;

[0057] Detect the extended and retracted positions of the cylinder through the magnetic switch;

[0058] Detect the regularization effect through the appearance inspection photoelectric sensor;

[0059] The photoelectric sensor is installed at both ends of the roller conveyor line to detect the presence or absence of the plate and transfer data, and the data is fed back to the WCS system in real time;

[0060] The laser range finder is installed on the frame of the regularizer to detect the actual height of the plate to prevent the height data error of the plate in the WCS system from exceeding ±18 MM. If the height error is too large, the operator needs to manually confirm whether the plate is stored in the warehouse;

[0061] The shape detection sensor is installed on the body of the regularization machine frame 11 and is used for the final regularization effect detection.

[0062] First, the connecting conveyor line exchanges handshake signals with the WCS system, and the plate is transported to the leveling machine after passing the height limit detection. When the plate is in place, the leveling machine uses laser ranging to determine the actual plate height and compares it with the plate height data of the WCS system. If the height error is within ±18mm, the plate stack will automatically enter the leveling process:

[0063] The frame 11 will move to an angle close to vertical to the ground. After reaching the position, the front baffle cylinder 14 and the side push positioning cylinder 16 will extend, and the rear baffle cylinder 15 will be extended. The magnetic switch will detect whether the cylinders are in place. After reaching the position, the horizontal conveying rollers 21 and the vertical conveying rollers 22 will rotate forward while the rear baffle cylinder 15 will extend to assist in the straightening of the plate stack. When the plate stack hits the front baffle, it will stop after a delay of 4 seconds. Then, according to the different lengths of the plates, the rear baffle cylinder 15 will be retracted at the same time. After retreating into place, the horizontal conveying rollers 21 and the vertical conveying rollers 22 will repeat the forward rotation steps. After the previous step is completed, the first straightening is considered to be completed. After the roller stops, the shape inspection will begin. The error is within 3 cm and is considered qualified. After detecting that the plate stack is qualified, all cylinders of the straightening machine will retract, the frame will return to its position and the straightening is completed.

[0064] After the plate is sorted, it will be transported to the storage conveyor to exchange handshake signals with the stacker crane and WCS system, waiting for the stacker crane to take the plate stack to complete the storage.

[0065] The control system PLC establishes data communication with the vertical warehouse stacker crane and WCS system through the S7 communication protocol, and sends the operating status of the material conveyor line according to the content of the communication message.

[0066] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

[0067] Although this article uses the regular platform 10, frame 11, regular structure 12, plate moving and adjusting structure 13, front baffle cylinder 14, rear baffle cylinder 15, side push positioning cylinder 16, front baffle 17, rear baffle 18, side plate 19, lifting mechanism 20, horizontal conveying roller 21, vertical conveying roller 22, etc. more frequently, these terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A sorting control method for stacking and regularizing plates, including a regularization platform (10) and a frame (11), wherein a regularization structure (12) is provided on the frame (11), and a plate moving and position adjusting structure (13) is provided on the regularization platform (10), characterized in that ； Step 1: Transport the sheet materials and place them on the regularizing platform (10) and stack them up in sequence; Step 2: Use the detection device to detect the height of the stacked sheet materials; Step 3: When the detection device detects that the stacked sheet materials do not exceed the specified height, move the frame (11) to make the stacked sheet materials located inside the frame (11), and regularize the stacked sheet materials through the regularizing structure (12) and the sheet material moving and position adjusting structure (13); Step 4: Inspect the shape of the regularized sheet materials; Step 5: Store the regularized sheet materials in the warehouse.

2. The sorting control method for stacking and regularizing plates according to claim 1, characterized in that, In Step 2, when the detection device detects that the height of the stacked sheet materials exceeds the specified height, manually select whether to continue regularizing. If it is selected to continue regularizing, then proceed to Step 3. If it is selected not to continue regularizing, then exit the regularizing steps.

3. A method for sorting and controlling the stacking of plates according to claim 1, characterized in that, The described regularizing structure (12) includes a front baffle cylinder (14), a rear baffle cylinder (15) and a side pushing and positioning cylinder (16). The output shaft of the front baffle cylinder (14) is connected to the front baffle (17). The output shaft of the rear baffle cylinder (15) is connected to the rear baffle (18). The output shaft of the side pushing and positioning cylinder (16) is connected to the side plate (19). The rear baffle cylinder (15) is connected to the frame (11) through a lifting mechanism (20). In Step 3, the output shaft of the side pushing and positioning cylinder (16) extends to make the side plate (19) located at the positioning position. The output shaft of the front baffle cylinder (14) extends to make the front baffle (17) located at the positioning position. The rear baffle cylinder (15) moves downward under the action of the lifting mechanism (20) to make the position of the rear baffle (18) correspond to the stacked sheet materials. Then the rear baffle cylinder (15) works to make the rear baffle (18) approach and push the stacked sheet materials, and cooperate with the side plate (19) and the front baffle (17) to make the stacked sheet materials abut against the front baffle (17), the rear baffle (18) and the side plate (19), thus completing the regularization.

4. The sorting control method for stacking and regularizing plates according to claim 3, characterized in that In Step 3, during the process of the rear baffle cylinder (15) moving downward under the action of the lifting mechanism (20), the sheet material moving and position adjusting structure (13) works to make the stacked sheet materials move towards the direction close to the front baffle (17) and the side plate (19).

5. A method for sorting and controlling stacked plates according to claim 4, characterized in that, The described sheet material moving and position adjusting structure (13) includes a horizontal conveying roller (21) and a vertical conveying roller (22). In Step 3, the rotation of the horizontal conveying roller (21) makes the stacked sheet materials move towards the direction close to the side plate (19). The rotation of the vertical conveying roller (22) makes the stacked sheet materials move towards the direction close to the front baffle (17). And during the process of the regularizing structure (12) regularizing the stacked sheet materials, the horizontal conveying roller (21) and the vertical conveying roller (22) are always in a rotating state. And when the regularizing structure (12) finishes regularizing, the horizontal conveying roller (21) and the vertical conveying roller (22) buffer for 4 seconds and then stop rotating, thus completing Step 3.

6. A method for sorting and controlling the stacking of plates according to claim 5, characterized in that, The regularizing structure (12) will count when regularizing. Each time of regularizing, the count is incremented by 1. When the stacked sheet materials are regularized once, that is, when the count = 1, judge the length of the sheet materials; Step 3.1: When the length of the sheet is equal to 2745 mm, retract the rear baffle cylinder (15), the horizontal conveyor rollers (21) and the vertical conveyor rollers (22) reverse for 2 seconds and then stop. When the length of the sheet is equal to 2445 mm, retract the rear baffle cylinder (15), the horizontal conveyor rollers (21) and the vertical conveyor rollers (22) reverse for 3.5 seconds and then stop; After completing Step 3.1, continue to repeat Step 3 to further regularize the sheet. At this time, the count is incremented by 1 so that the count = 2, and thus Step 4 is entered.

7. A method for sorting and controlling stacked plates according to claim 6, characterized in that, In Step 4, if the shape inspection is qualified, retract all cylinders and move the frame (11) to the initial position to complete the regularization task; If the shape inspection is unqualified, manually select whether to continue regularizing the stack of sheets, or to continue regularizing a new stack of sheets after retrieving the stack of sheets.

8. A method for sorting and controlling stacked sheets according to claim 3, characterized in that, With the help of the front baffle (17), a positioning reference surface is provided for regularizing the sheet stack. With the help of the rear baffle (18), a greater force is provided to enable the sheet to obtain greater kinetic energy in a short time and impact the positioning reference surface. The side baffle (19) is used for auxiliary positioning of the long side surface of the sheet.

9. A method for sorting and controlling the stacking of plates according to any one of claims 1-8, characterized in that, After the regularization action is completed, the shape control error of the sheet stack is detected within 3 cm to ensure the regularization effect.

10. A method for sorting and controlling stacked plates according to any one of claims 1-8, characterized in that, The height data error of the sheet is detected within ±18 MM. If the height error is too large, the operator needs to manually confirm whether the sheet is stored in the warehouse.

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