Automotive laminated glass pretreatment line unloading system and unloading method

Abstract

A sheet unloading system and a sheet unloading method for a pretreatment line of automotive laminated glass belong to the technical field of laminated glass production lines. The sheet unloading system includes an outer glass production line and an inner glass production line. An L-shaped sheet unloading machine I, a sheet unloading machine II, a transition conveyor and a sheet unloading positioning machine are sequentially connected between the outer glass production line and the inner glass production line. A sheet unloading robot for grabbing glass is provided on the unloading side of the unloading positioning machine. The beneficial effect of the present invention is that the overall layout of the sheet unloading system is compact and reasonable, which saves the process of pairing the outer glass and the inner glass, improves production efficiency, reduces the work intensity of production personnel, and can quickly switch between manual and automatic unloading, making unloading more flexible and stable.

Description

Technical Field

[0001] The present invention relates to the technical field of laminated glass production lines, and in particular to an automotive laminated glass pretreatment line unloading system and a laminated glass unloading method. Background Art

[0002] Automotive laminated glass is a composite glass product consisting of two pieces of glass (including inner and outer glass) or multiple pieces of glass with one or more layers of organic polymer interlayer sandwiched between them. After undergoing special high-temperature pre-pressing (or vacuuming) and high-temperature and high-pressure processing, the glass and the interlayer are permanently bonded together.

[0003] During the pre-processing of automotive laminated glass, the outer glass needs to be cut and powder-sprayed, and the inner glass needs to be cut, silk-screened, and dried. After the outer and inner glass are pre-processed, they need to be unloaded for the next process. However, the current glass production system has the following shortcomings: First, the unloading locations of the outer and inner glass are far apart, which makes the entire glass production line longer and less compact, wastes production space, reduces production efficiency, and increases the company's operating costs. Second, after the outer and inner glass are unloaded and stored separately, they need to be paired, which increases the number of process steps and further reduces production efficiency. Third, the existing glass unloading operation is generally manual, which increases the workload of production personnel and increases the risk of glass quality damage during unloading. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides an automotive laminated glass pretreatment line unloading system, which has a compact and reasonable overall layout, saves the process of pairing the outer glass and the inner glass, improves production efficiency, reduces the workload of production personnel, and can quickly switch between manual and automatic unloading, making unloading more flexible.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention to solve its technical problem is: the automotive laminated glass pretreatment line unloading system includes an outer glass production line and an inner glass production line, and the outer glass production line and the inner glass production line are sequentially connected with an L-shaped unloader I, an unloader II, a transition conveyor and an unloader positioning machine, and a unloader robot for grabbing glass is provided on the unloader side of the unloader positioning machine.

[0006] The unloader I, unloader II and unloader positioning machine are all configured as bidirectional unloaders, including a transverse conveying mechanism and a longitudinal conveying mechanism, and a cam lifting mechanism is connected to the transverse conveying mechanism or the longitudinal conveying mechanism.

[0007] The unloading system further comprises a face-changing turntable arranged near the unloading robot and used for changing the face of the glass rack.

[0008] A mounting groove is provided on the ground at one side of the unloading robot, the face-changing turntable is mounted in the mounting groove, and the upper surface of the face-changing turntable is flush with the ground.

[0009] The face-changing turntable is provided with two positioning blocks, which are connected to one side of the glass frame.

[0010] The unloading system also includes an operation box and a control cabinet. The operation box is provided with a touch screen, and the control cabinet is provided with a PLC control unit. The operation box is connected to the face-changing turntable, unloading machine I, unloading machine II, transition conveyor, unloading positioning machine and unloading robot through the PLC control unit.

[0011] A suction cup frame is installed on the mechanical arm of the unloading robot, and a distance sensor for measuring the size data of the glass frame is provided on the suction cup frame. The distance sensor is connected to the alarm unit and the mechanical arm through a PLC control unit.

[0012] An automatic unloading method for an automobile laminated glass pretreatment line, using the automobile laminated glass pretreatment line unloading system, comprises the following steps:

[0013] Step 1: Manually push the empty glass rack onto the face-changing turntable for positioning;

[0014] Step 2: Manually input the type and size of the glass to be produced and the number of glasses to be placed on one side of the glass rack on the operation box, select the automatic unloading operation and start the system;

[0015] Step 3: The unloading robot measures the size of the glass rack through the distance measuring sensor, determines whether the glass rack meets the standards, and calculates the offset of the glass placement trajectory;

[0016] Step 4: Place the outer and inner glass sheets alternately in pairs on the glass rack until both sides of the glass rack are full.

[0017] The method for alternately unloading the glass in step 4 is as follows: 1) the outer glass is passed from the outer glass production line through unloader I, unloader II, and the transition conveyor in sequence to the unloader positioning machine, and then is placed on the glass rack by a unloader robot; 2) the inner glass is passed from the inner glass production line to the unloader positioning machine and then is placed on the glass rack by a unloader robot; 3) the outer glass and the inner glass are placed alternately in pairs according to the methods of steps 1) and 2).

[0018] A manual unloading method for an automobile laminated glass pretreatment line, using the automobile laminated glass pretreatment line unloading system, comprises the following steps:

[0019] Step 1: Manually push the empty glass rack to the outside of unloader I and unloader II;

[0020] Step 2: Select manual unloading on the operation box and start the system;

[0021] Step 3: The outer glass arrives at unloader I from the outer glass production line;

[0022] Step 4: The inner glass is transported from the inner glass production line through the unloading positioning machine and the transition conveyor to the unloading machine II;

[0023] Step 5: Two workers take turns unloading the films on unloaders I and II, placing them in pairs on the glass rack.

[0024] The beneficial effects of the present invention are:

[0025] 1. The present invention connects an L-shaped unloader I, an unloader II, a transition conveyor, and an unloader positioning machine between the outer glass production line and the inner glass production line, so that the overall layout of the entire system is compact and reasonable. The pre-treated outer glass and inner glass are alternately conveyed to the unloader positioning machine, and the outer glass and inner glass are alternately unloaded and placed in pairs on the glass rack by an unloading robot, which saves the process of individually pairing the outer glass and the inner glass, realizes the automation of unloading, improves production efficiency, and reduces the workload of production personnel.

[0026] 2. The present invention provides a distance sensor on the suction cup frame of the unloading robot to measure whether the size of the glass rack meets the standard. If it does not meet the standard, an alarm unit will sound an alarm to remind manual adjustment or replacement of a suitable glass rack, thereby ensuring the stability of glass placement. After the distance sensor measures the size of the glass rack, the PLC control unit can calculate the offset of the glass placement trajectory, so that the glass can be positioned more accurately and smoothly.

[0027] 3. The present invention sets two unloading modes, automatic unloading and manual unloading. When the unloading robot fails, the outer glass and the inner glass can be transported to unloading machine I and unloading machine II respectively. Manual unloading operations are performed alternately on unloading machine I and unloading machine II respectively, and the glasses are placed alternately in pairs on the glass rack, so that manual and automatic unloading can be switched quickly, making the unloading method more flexible and ensuring the continuity of unloading.

[0028] In summary, the overall layout of the unloading system of the present invention is compact and reasonable, which saves the process of pairing the outer glass and the inner glass, improves production efficiency, reduces the workload of production personnel, and can quickly switch between manual and automatic unloading, making unloading more flexible and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The following is a brief description of the contents and symbols in the drawings of the present invention:

[0030] Figure 1Schematic diagram of the structure of the sheet loading system in the present invention;

[0031] Figure 2 Flowchart of the automatic film unloading method of the present invention;

[0032] Figure 3 Flowchart of the manual unloading method of the present invention;

[0033] The marks in the above figure are: 1. Outer glass production line, 2. Inner glass production line, 3. Unloader I, 4. Unloader II, 5. Transition conveyor, 6. Unloader positioning machine, 7. Unloader robot, 8. Face-changing turntable, 81. Positioning block, 9. Operation box, 10. Control cabinet. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0037] The specific embodiment of the present invention is: Figure 1As shown, a pre-treatment line unloading system for automotive laminated glass includes an outer glass production line 1 and an inner glass production line 2. The outer glass production line 1 includes cutting and powder spraying treatment of the outer glass, and the inner glass production line 2 includes cutting, silk screen printing and drying treatment of the inner glass. The outer glass production line 1 and the inner glass production line 2 are sequentially connected with an L-shaped unloading machine I3, an unloading machine II4, a transition conveyor 5 and an unloading positioning machine 6, so that the overall layout of the entire system is compact and reasonable, so that the pre-treated outer glass and inner glass are alternately conveyed to the unloading positioning machine 6. A unloading robot 7 for grabbing glass is provided on the unloading side of the unloading positioning machine 6. The unloading robot 7 alternately unloads the outer glass and the inner glass in pairs and places them on the glass rack, saving the process of separately pairing the outer glass and the inner glass, realizing the automation of unloading, improving production efficiency and reducing the work intensity of production personnel.

[0038] Specifically, the above-mentioned unloading machine Ⅰ3, unloading machine Ⅱ4 and unloading positioning machine 6 are all configured as bidirectional unloading machines, including a transverse conveying mechanism and a longitudinal conveying mechanism. The transverse conveying mechanism or the longitudinal conveying mechanism is connected to a cam lifting mechanism, and the cam lifting mechanism includes a camshaft and a four-bar linkage connected thereto. The driving end of the four-bar linkage is connected to the driving motor, and the driving motor drives the four-bar linkage to move, so that the camshaft can rotate a certain angle. The cam on the camshaft is connected to the bottom of the transverse conveying mechanism or the longitudinal conveying mechanism. The cam lifting mechanism makes the conveying surfaces of the transverse conveying mechanism and the longitudinal conveying mechanism not in the same plane, thereby avoiding the problem of interference during the transmission process.

[0039] Specifically, the unloading system further includes a reversing turntable 8, located near the unloading robot 7, for reversing the glass rack. This turntable 8 is configured as a servo turntable. A mounting slot is provided on the ground to one side of the unloading robot 7, within which the reversing turntable 8 is mounted. The top surface of the reversing turntable 8 is flush with the ground, facilitating manual insertion of the empty glass rack onto the reversing turntable 8. The reversing turntable 8 is provided with two L-shaped positioning blocks 81, which are connected to one side of the glass rack to prevent the rack from moving forward and backward during placement, ensuring stable glass placement.

[0040] Specifically, the unloading system also includes an operation box 9 and a control cabinet 10. The operation box 9 is provided with a touch screen, and two operation modes of automatic unloading and manual unloading are set on the touch screen. A PLC control unit is provided in the control cabinet 10. The operation box 9 is connected to the face-changing turntable 8, unloading machine I3, unloading machine II4, transition conveyor 5, unloading positioning machine 6 and unloading robot 7 through the PLC control unit. By selecting one of the two operation modes, the PLC control unit mobilizes the corresponding control program to control the automatic unloading action or the manual unloading action.

[0041] Specifically, the robotic arm of the unloading robot 7 is equipped with a suction cup holder equipped with a distance sensor for measuring the dimensions of the glass rack. The distance sensor is connected to the alarm unit and the robotic arm via a PLC control unit. The distance sensor measures whether the dimensions of the glass rack (including the length of the glass rack crosspiece and the edge) meet the standards. If not, the PLC control unit controls the alarm unit to issue an alarm prompting manual adjustment or replacement of the appropriate glass rack, ensuring stable glass placement. After the distance sensor measures the dimensions of the glass rack (including the length of the glass rack crosspiece), the PLC control unit calculates the offset of the glass placement trajectory based on the number of glasses placed on one side of the glass rack, ensuring more accurate and stable glass positioning.

[0042] The method for automatically unloading films using the above-mentioned film unloading system comprises the following steps:

[0043] Step 1: Manually push the empty glass rack onto the face-changing turntable 8 for positioning;

[0044] Step 2: Manually input the type and size of the produced glass and the number of glasses to be placed on one side of the glass rack on the operation box 9, select the automatic unloading operation and start the system;

[0045] Step 3: The unloading robot 7 measures the size of the glass rack through the distance measuring sensor and determines whether the glass rack meets the standards and calculates the offset of the glass placement trajectory;

[0046] Step 4: Place the outer and inner glass sheets alternately in pairs on the glass rack until both sides of the rack are full. Figure 2 As shown, the specific method is as follows: 1) the outer glass is conveyed from the outer glass production line 1 through the unloader I3, unloader II4, and transition conveyor 5 in sequence to the unloader positioning machine 6, and then placed on the glass rack by the unloader robot 7; 2) the inner glass is conveyed from the inner glass production line 2 to the unloader positioning machine 6, and then placed on the glass rack by the unloader robot 7; 3) the outer glass and the inner glass are placed alternately in pairs according to the method of steps 1) and 2).

[0047] like Figure 3 As shown, the method for manually unloading films using the above-mentioned film unloading system includes the following steps:

[0048] Step 1: Manually push the empty glass rack to the outside of unloader I3 and unloader II4;

[0049] Step 2: Select manual unloading operation on the operation box 9 and start the system;

[0050] Step 3: The outer glass arrives at the unloader I3 from the outer glass production line 1;

[0051] Step 4: The inner glass is transported from the inner glass production line 2 through the unloading positioning machine 6 and the transition conveyor 5 to the unloading machine II 4;

[0052] Step 5: Two workers take turns unloading the films on unloaders I3 and II4, placing them in pairs on the glass rack.

[0053] In summary, the overall layout of the unloading system of the present invention is compact and reasonable, which saves the process of pairing the outer glass and the inner glass, improves production efficiency, reduces the workload of production personnel, and can quickly switch between manual and automatic unloading, making unloading more flexible and stable.

[0054] The above description is merely an illustration of some principles of the present invention. This specification is not intended to limit the present invention to the specific structure and application scope shown and described. Therefore, all corresponding modifications and equivalents that may be used are within the scope of the patent applied for by the present invention.

Claims

1. An automatic unloading method for an automobile laminated glass pretreatment line, characterized by: The automotive laminated glass pretreatment line unloading system used includes an outer glass production line and an inner glass production line. An L-shaped unloader I, unloader II, a transition conveyor, and an unloader positioning machine are sequentially connected between the outer and inner glass production lines. A unloader robot for gripping glass is installed on the unloader positioning machine's unloading side. A suction cup frame is installed on the unloader robot's robotic arm, and a distance sensor for measuring the glass frame's dimensions is installed on the suction cup frame. The distance sensor is connected to an alarm unit and the robotic arm via a PLC control unit. The automatic film unloading method comprises the following steps: Step 1: Manually push the empty glass rack onto the face-changing turntable for positioning; Step 2: Manually input the type and size of the glass to be produced and the number of glasses to be placed on one side of the glass rack on the operation box, select the automatic unloading operation and start the system; Step 3: The unloading robot measures the size of the glass rack through the distance measuring sensor, determines whether the glass rack meets the standards, and calculates the offset of the glass placement trajectory; Step 4: Place the outer and inner glass sheets alternately in pairs on the glass rack until both sides of the rack are full; The method for alternately unloading the glass in step 4 is as follows: 1) the outer glass is passed from the outer glass production line through unloader I, unloader II, and the transition conveyor in sequence to the unloader positioning machine, and then is placed on the glass rack by a unloader robot; 2) the inner glass is passed from the inner glass production line to the unloader positioning machine and then is placed on the glass rack by a unloader robot; 3) the outer glass and the inner glass are placed alternately in pairs according to the methods of steps 1) and 2).

2. The automatic unloading method for an automotive laminated glass pretreatment line according to claim 1, characterized in that: The unloader I, unloader II and unloader positioning machine are all configured as bidirectional unloaders, including a transverse conveying mechanism and a longitudinal conveying mechanism, and a cam lifting mechanism is connected to the transverse conveying mechanism or the longitudinal conveying mechanism.

3. The automatic unloading method for an automotive laminated glass pretreatment line according to claim 1, characterized in that: The unloading system further comprises a face-changing turntable arranged near the unloading robot and used for changing the face of the glass rack.

4. The automatic unloading method for an automotive laminated glass pretreatment line according to claim 3, characterized in that: A mounting groove is provided on the ground at one side of the unloading robot, the face-changing turntable is mounted in the mounting groove, and the upper surface of the face-changing turntable is flush with the ground.

5. The automatic unloading method for an automotive laminated glass pretreatment line according to claim 3, characterized in that: The face-changing turntable is provided with two positioning blocks, which are connected to one side of the glass frame.

6. The automatic unloading method for an automotive laminated glass pretreatment line according to claim 3, characterized in that: The unloading system also includes an operation box and a control cabinet. The operation box is provided with a touch screen, and the control cabinet is provided with a PLC control unit. The operation box is connected to the face-changing turntable, unloading machine I, unloading machine II, transition conveyor, unloading positioning machine and unloading robot through the PLC control unit.

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