Online continuous paper laying machine suitable for Mini LED backboard glass

Abstract

The utility model discloses an on-line continuous paper laying machine suitable for Mini LED (Light Emitting Diode) backboard glass, which comprises a rack, an air expansion shaft is arranged in the rack, a paper roll is sleeved on the air expansion shaft, and the air expansion shaft is driven by a motor; a paper cutting mechanism and a paper outlet are arranged at the position, located at the glass output end, in the rack, and a plurality of tensioning rods are arranged between the paper roll and the paper cutting mechanism; a first paper driving wheel and a second paper driving wheel are sequentially arranged on the two sides of the paper cutting mechanism in the glass conveying direction, and the first paper driving wheel and the second paper driving wheel are driven by a motor; the first paper driving wheel and the second paper driving wheel are connected to the rack in an up-and-down sliding mode, the first paper driving wheel and the second paper driving wheel are both connected with a lifting mechanism, paper on the paper roll sequentially passes through the multiple tensioning rods and then is pressed on a bottom plate of the rack through the first paper driving wheel and the second paper driving wheel, and a pressure sensor is arranged on the bottom plate. According to the utility model, the continuity of the paper laying process is realized, the paper deviation accident caused by the pressure difference between the paper driving wheels is reduced, and the paper laying quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of glass production, and in particular to an online continuous paper laying machine suitable for Mini LED back panel glass. Background Art

[0002] During the production process of Mini LED backplane glass, due to the process and customer needs, the finished glass cut at the cold end will be papered to meet customer needs and ensure the surface quality of the glass, reducing quality problems such as scratches.

[0003] At present, for the paper laying operation, an online paper laying machine is generally used for paper laying. During the paper laying process, the glass needs to be moved into place and stopped before the paper is cut. After the cutting is completed, the paper laying machine and the glass roller are operated at the same time, so that the finished glass and the paper move at the same speed, thereby completing the paper laying operation. For example, Chinese utility model patent CN218138370U discloses an automatic paper laying machine for a glass production line, including: a workbench, on which a glass conveying mechanism is arranged; a cutting machine, which is installed at the top of the inner wall of the workbench near one side edge, a mounting frame, which is fixedly arranged at the bottom of the outer wall of the workbench, and a fixing mechanism, which is arranged in the mounting frame, and the fixing mechanism includes two fixing plates, two groups of moving parts, two groups of elastic parts, two groups of cam parts and a driving part. In the process of cutting paper, the patent requires that the glass and paper stop conveying and remain in a relatively static state. This paper laying method has low work efficiency; and when the roller conveyor is used to convey the glass, the roller wheel of the roller conveyor will rub against the lower surface of the glass at the moment of stopping, causing some slight scratches, which affects the quality of the finished glass. In addition, some paper laying machines use paper drive wheels to output paper during operation. However, due to the pressure difference between the paper drive wheels, the paper often deviates, resulting in substandard paper laying quality. Frequent adjustments are required, which is time-consuming and labor-intensive. During the paper cutting process, paper scraps are generated and fall on the production line, which can cause surface contamination of the finished glass or slippage of the paper drive wheels, affecting the quality of paper laying. When the glass is running on the roller, the vibration of the roller itself can sometimes cause the glass to shift. When going through the paper laying process, there are often problems such as paper laying offset, which affects the quality of paper laying. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to overcome the shortcomings of the existing technology and provide an online continuous paper laying machine suitable for MiniLED back panel glass, which realizes the continuity of the paper laying process, improves work efficiency, and at the same time reduces the paper deviation accidents caused by different pressures between the paper driving wheels, thereby ensuring the quality of paper laying.

[0005] The technical solution of the utility model is:

[0006] An online continuous paper laying machine suitable for Mini LED backplane glass includes a frame, which is placed above a roller. An air shaft is arranged in the frame, a paper roll is sleeved on the air shaft and the air shaft is driven to rotate by a motor; a paper cutting mechanism and a paper outlet are arranged in the frame at the glass output end, and a plurality of tensioning rods are arranged between the paper roll and the paper cutting mechanism; a first paper driving wheel and a second paper driving wheel are arranged in sequence on both sides of the paper cutting mechanism along the glass transmission direction, and the first paper driving wheel and the second paper driving wheel are driven to rotate by a motor; the first paper driving wheel and the second paper driving wheel are both connected to the frame by sliding up and down, and the first paper driving wheel and the second paper driving wheel are both connected to a lifting mechanism, and the paper on the paper roll is pressed onto the bottom plate of the frame by the first paper driving wheel and the second paper driving wheel after passing through a plurality of tensioning rods in sequence, and a pressure sensor is arranged on the bottom plate.

[0007] Preferably, the paper cutting mechanism comprises a synchronous belt, which is sleeved on a driving wheel and a driven wheel, the length direction of the synchronous belt is perpendicular to the glass transmission direction, the driving wheel is driven to rotate by a motor, and a paper cutter is arranged at the bottom of the synchronous belt.

[0008] Preferably, the plurality of tensioning rods include a first tensioning rod, a second tensioning rod and a third tensioning rod in sequence along the glass transmission direction in the frame, the second tensioning rod and the third tensioning rod are fixed in the frame, the first tensioning rod is connected to a guide mechanism, when the first tensioning rod moves back and forth along the glass transmission direction under the pull of the paper, the guide mechanism guides the first tensioning rod; a first photoelectric switch is provided on the bottom plate of the frame corresponding to the first tensioning rod moving to a position away from the second tensioning rod, and a second photoelectric switch is provided on the bottom plate of the frame corresponding to the first tensioning rod moving to a position close to the second tensioning rod.

[0009] Preferably, the guide mechanism comprises a guide rod connected to the first tensioning rod, the guide rod is inserted into a fixed sleeve, the fixed sleeve is fixed in the frame and a plurality of guide wheels are arranged on the inner wall of the fixed sleeve, and the plurality of guide wheels circle the guide rod.

[0010] Preferably, a dust removal mechanism is provided in the frame at the paper cutting mechanism.

[0011] Preferably, the dust removal mechanism comprises a dust removal barrel, the dust removal barrel is provided with a paper scrap inlet and an air exhaust port, and the air exhaust port is provided with a filter element and a fan.

[0012] Preferably, the bottom of the frame is located at the front end of the glass transmission, and is provided with a camera. First sliders are respectively provided at the four corners of the bottom of the frame bottom plate, a first slideway is provided at the bottom of the first slider, a hydraulic cylinder is provided between the first slider and the first slideway, the hydraulic cylinder is hinged on the first slideway, and the piston rod of the hydraulic cylinder is connected to the first slider.

[0013] Preferably, the first paper driving wheel and the second paper driving wheel are both connected to a second slider, the second slider is slidably connected to a second slide, the second slide is fixed in the frame, and the first paper driving wheel and the second paper driving wheel slide up and down along the second slide through the second slider.

[0014] Preferably, the lifting mechanism comprises a rack arranged on the second sliding block, the rack is meshed with a gear, and the gear is driven to rotate by a motor.

[0015] Preferably, a slope is provided at the paper outlet of the frame, and when the paper is output from the paper outlet, it slides down the slope and is laid on the glass below, and a third photoelectric switch is provided at the bottom of the slope.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. Compared with the traditional paper laying method, the paper laying machine of the utility model realizes the continuity of the paper laying process, effectively improves the work efficiency, and reduces the glass defect rate caused by waiting for paper during the work process. At the same time, the paper laying machine of the utility model adopts a lifting paper driving wheel, and cooperates with a pressure sensor to adjust the pressure of the paper driving wheel in real time, reducing the paper deviation accident caused by the different pressures between the paper driving wheels, and ensuring the quality of paper laying.

[0018] 2. The paper laying machine of the present invention is also provided with a dust removal mechanism, which can collect paper scraps generated during the paper cutting process, thereby reducing the pollution of the production line by paper scraps and the impact on the working condition of the equipment.

[0019] 3. The paper laying machine of the utility model adopts a movable frame, which can automatically align the glass position on the roller, greatly improving the accuracy of the paper laying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural schematic diagram of the online continuous paper laying machine suitable for Mini LED back panel glass of the utility model.

[0022] Figure 2 yes Figure 1 A partial enlarged view at point A.

[0023] Figure 3 It is a structural schematic diagram of the first sliding block, the first slideway and the hydraulic cylinder of the utility model.

[0024] In the figure, 1, frame; 101, bottom plate; 201, air shaft; 202, paper roll; 203, paper; 301, first paper drive wheel; 302, second paper drive wheel; 4, lifting mechanism; 401, rack; 402, gear; 5, pressure sensor; 6, paper cutter; 701, first tensioning rod; 702, second tensioning rod; 703, third tensioning rod; 801, first photoelectric switch; 802, second photoelectric switch; 803, third photoelectric switch; 901, guide rod; 902, fixing sleeve; 10, dust removal mechanism; 1001, dust removal barrel; 1002, paper scrap inlet; 1003, filter element; 1101, camera; 1102, light belt; 1201, first slider; 1202, first slide; 1203, hydraulic cylinder; 1301, second slider; 1302, second slide; 14, ramp. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0026] Example 1

[0027] like Figure 1 As shown, this embodiment provides an online continuous paper laying machine suitable for Mini LED backplane glass, including a frame 1, the frame 1 is placed above the roller, an inflatable shaft 201 is arranged in the frame 1, a paper roll 202 is sleeved on the inflatable shaft 201, and the inflatable shaft 201 is driven to rotate by a motor. The motor drives the inflatable shaft 201 to rotate, so that the paper roll 202 releases paper, realizing online continuous paper laying of the glass. A paper 203 cutting mechanism and a paper outlet are arranged at the glass output end of the frame 1. After the paper roll 202 delivers paper, the paper 203 cutting mechanism cuts the paper 203, and the cut paper 203 can be sent out of the frame 1 through the paper outlet and laid on the glass surface on the roller below.

[0028] Specifically, the paper 203 cutting mechanism includes a synchronous belt, which is sleeved on a driving wheel and a driven wheel. The length direction of the synchronous belt is perpendicular to the glass transmission direction. The driving wheel is driven by a motor to rotate, and a paper cutter 6 is arranged at the bottom of the synchronous belt. The motor rotates forward and reversely to drive the driving wheel to rotate, and drives the synchronous belt and the driven wheel to rotate, so that the paper cutter 6 at the bottom of the synchronous belt moves back and forth in a direction perpendicular to the glass transmission direction to complete the cutting of the paper 203. In addition, if Figure 1As shown, a slope 14 is provided at the paper outlet of the frame 1. When the paper 203 is output from the paper outlet, it slides down the slope 14 and is laid on the glass below. At the same time, a third photoelectric switch 803 is provided at the bottom of the slope 14. When the third photoelectric switch 803 detects that the glass passes, the paper 203 can be output from the paper outlet and laid on the glass surface, thereby realizing online continuous paper laying of the glass.

[0029] like Figure 1 As shown, in the frame 1, the first tensioning rod 701, the second tensioning rod 702 and the third tensioning rod 703 are sequentially arranged between the paper roll 202 and the paper 203 cutting mechanism along the glass transmission direction, the second tensioning rod 702 and the third tensioning rod 703 are fixed in the frame 1, the first tensioning rod 701 is connected to a guide mechanism, the guide mechanism includes a U-shaped guide rod 901 connected to the first tensioning rod 701, the two parallel sides of the guide rod 901 are respectively inserted into two fixed sleeves 902, the fixed sleeve 902 is fixed in the frame 1 and a guide wheel is respectively arranged on the four inner walls of the fixed sleeve 902, and the four guide wheels circle the guide rod 901. When the first tensioning rod 701 moves forward and backward along the glass transmission direction under the pull of the paper 203, the guide rod 901 will telescopically move in the fixed sleeve 902, thereby guiding the first tensioning rod 701. The guide wheel in the fixing sleeve 902 serves to reduce the friction between the guide rod 901 and the fixing sleeve 902 .

[0030] A first photoelectric switch 801 is provided on the bottom plate 101 of the rack 1 corresponding to the first tensioning rod 701 moving to a position away from the second tensioning rod 702 , and a second photoelectric switch 802 is provided on the bottom plate 101 of the rack 1 corresponding to the first tensioning rod 701 moving to a position close to the second tensioning rod 702 . When the first photoelectric switch 801 detects the paper 203, it means that the paper roll 202 is in place, and the motor at the paper roll 202 is turned off and the paper feeding stops; as the paper 203 moves toward the paper outlet, the paper 203 pulls the first tensioning rod 701 until the first tensioning rod 701 is pulled to the point where it cannot be detected by the second photoelectric switch 802 under the guidance of the guide mechanism, indicating that the paper 203 is in place, and the paper 203 can be cut; when the third photoelectric switch 803 detects that the glass has arrived, the cut paper 203 can be output from the paper outlet and laid on the glass surface to complete the paper laying process. At this time, the motor at the paper roll 202 can be restarted to start feeding the paper, until the first tensioning rod 701 moves to the point where the first photoelectric switch 801 can detect the paper 203 under the guidance of the guide mechanism, indicating that the paper roll 202 is in place, and the motor at the paper roll 202 is turned off and the paper feeding stops, and this cycle is repeated to achieve online continuous paper laying of the glass.

[0031] like Figure 1-2As shown, the first paper driving wheel 301 and the second paper driving wheel 302 are sequentially arranged on both sides of the paper 203 cutting mechanism along the glass transmission direction, and the first paper driving wheel 301 and the second paper driving wheel 302 are driven to rotate by a motor; the first paper driving wheel 301 and the second paper driving wheel 302 are both connected to the second slider 1301, and the second slider 1301 is slidably connected to the second slide 1302, and the second slide 1302 is fixed in the frame 1, and the first paper driving wheel 301 and the second paper driving wheel 302 can slide up and down along the second slide 1302 through the second slider 1301. The first paper driving wheel 301 and the second paper driving wheel 302 are both connected to the lifting mechanism 4, and the lifting mechanism 4 includes a rack 401 arranged on the second slider 1301, and the rack 401 is meshed with a gear 402, and the gear 402 is driven to rotate by a motor. The paper 203 on the paper roll 202 passes through a plurality of tensioning rods in sequence and is pressed on the bottom plate 101 of the frame 1 by the first paper driving wheel 301 and the second paper driving wheel 302. The bottom plate 101 is provided with a pressure sensor 5. The motor drives the gear 402 to rotate, driving the second slider 1301 provided with a rack 401 to move up and down on the second slideway 1302, and cooperates with the pressure sensor 5 below to adjust the pressure of the first paper driving wheel 301 and the second paper driving wheel 302 on the paper 203 below in real time, control the driving state of the paper 203, and reduce the deviation accident of the paper 203 caused by the pressure difference between the paper driving wheels.

[0032] Working principle:

[0033] The motor drives the inflatable shaft 201 to rotate, so that the paper roll 202 releases paper. When the first photoelectric switch 801 detects the paper 203, the motor stops rotating and stops releasing paper. Then the first paper driving wheel 301 and the second paper driving wheel 302 rotate under the drive of the motor, and the paper head is output from the first paper driving wheel 301 to the second paper driving wheel 302, until the paper 203 is spread from the paper outlet to the slope 14. In this process, the paper 203 will pull the first tensioning rod 701, so that it moves toward the second photoelectric switch 802 under the guidance of the guide mechanism, until the second photoelectric switch 802 can no longer detect the paper 203, the first paper driving wheel 301 and the second paper driving wheel 302 stop rotating, and the motor drives the synchronous belt to rotate, so that the paper cutter 6 cuts the paper 203. After cutting, when the third photoelectric switch 803 detects that the glass has reached, the second paper driving wheel 302 rotates, outputs the cut paper 203, and spreads the paper 203 along the slope 14 to the glass surface below. At the same time, the motor drives the inflatable shaft 201 to rotate, and the paper roll 202 starts to put paper again until the first tensioning rod 701 moves to the first photoelectric switch 801 under the guidance of the guide mechanism, stops putting paper, and then repeats the above process, thereby realizing online continuous paper laying of glass.

[0034] Example 2

[0035] On the basis of Example 1, Figure 1-2 As shown, a dust removal mechanism 10 is provided at the paper 203 cutting mechanism in the frame 1 to clean up the paper scraps generated when the paper cutter 6 cuts the paper 203. Specifically, the dust removal mechanism 10 includes a dust removal barrel 1001, and the dust removal barrel 1001 is provided with a paper scrap inlet 1002 and an air outlet. The air outlet is provided with a filter element 1003 and a fan, the filter element 1003 is located inside the dust removal barrel 1001, and the fan is located outside the dust removal barrel 1001.

[0036] The fan is started to form a negative pressure inside the dust removal bucket 1001 , so that the paper scraps generated by cutting are sucked into the dust removal bucket 1001 through the paper scrap inlet 1002 , and are collected in the dust removal bucket 1001 under filtration by the filter element 1003 .

[0037] Example 3

[0038] On the basis of Example 1, Figure 1 , 3 As shown, the bottom of the rack 1 is located at the front end of glass transmission, and is provided with a camera 1101 and a light strip 1102. The first sliders 1201 are respectively provided at the four corners of the bottom of the bottom plate 101 of the rack 1. The first slideway 1202 is provided at the bottom of the first slider 1201. A hydraulic cylinder 1203 is provided between the first slider 1201 and the first slideway 1202. The hydraulic cylinder 1203 is hinged on the first slideway 1202, and the piston rod of the hydraulic cylinder 1203 is connected to the first slider 1201. The hydraulic cylinder 1203 can be provided between the two first sliders 1201 and the first slideway 1202 on the same side of the front and rear ends in the glass transmission direction, and the other two first sliders 1201 can slide passively on the first slideway 1202.

[0039] Under the illumination of the light strip 1102, the camera 1101 takes a picture of the glass on the roller below and compares it with the standard picture in the control system. When it is compared that the glass has shifted sideways on the roller, the hydraulic cylinder 1203 is started to drive the first slide 1201 to move on the first slide 1202, so that the entire frame 1 is translated above the roller for a certain distance until it is compared that the glass is located directly below the frame 1. This embodiment can avoid the problem of skewed paper laying when the glass is shifted during the transmission on the roller and passes through the paper laying process, thereby ensuring the quality of paper laying.

[0040] Although the present invention is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person skilled in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. Online continuous paper laying machine suitable for MiniLED backplane glass, characterized in that: The invention comprises a frame (1), the frame (1) being placed above a roller, an air shaft (201) being arranged in the frame (1), a paper roll (202) being sleeved on the air shaft (201), and the air shaft (201) being driven to rotate by a motor; a paper (203) cutting mechanism and a paper outlet are arranged in the frame (1) at the glass output end, a plurality of tensioning rods are arranged between the paper roll (202) and the paper (203) cutting mechanism; a first paper driving wheel (301) and a second paper driving wheel (302) are arranged in sequence on both sides of the paper (203) cutting mechanism along the glass transmission direction, The first paper driving wheel (301) and the second paper driving wheel (302) are driven to rotate by a motor; the first paper driving wheel (301) and the second paper driving wheel (302) are both connected to the frame (1) in an upward and downward sliding manner, and the first paper driving wheel (301) and the second paper driving wheel (302) are both connected to a lifting mechanism (4); the paper (203) on the paper roll (202) passes through a plurality of tensioning rods in sequence and is then pressed onto a bottom plate (101) of the frame (1) by the first paper driving wheel (301) and the second paper driving wheel (302); a pressure sensor (5) is provided on the bottom plate (101).

2. The online continuous paper laying machine for MiniLED backplane glass according to claim 1, characterized in that: The paper (203) cutting mechanism comprises a synchronous belt, which is sleeved on a driving wheel and a driven wheel. The length direction of the synchronous belt is perpendicular to the glass transmission direction. The driving wheel is driven to rotate by a motor. A paper cutter (6) is arranged at the bottom of the synchronous belt.

3. The online continuous paper laying machine for MiniLED backplane glass according to claim 1, characterized in that: A plurality of tensioning rods are arranged in sequence along the glass transmission direction in the frame (1), including a first tensioning rod (701), a second tensioning rod (702) and a third tensioning rod (703); the second tensioning rod (702) and the third tensioning rod (703) are fixed in the frame (1); the first tensioning rod (701) is connected to a guide mechanism; when the first tensioning rod (701) moves forward and backward along the glass transmission direction under the pull of a paper (203), the guide mechanism guides the first tensioning rod (701); a first photoelectric switch (801) is arranged on the bottom plate (101) of the frame (1) at a position corresponding to the first tensioning rod (701) moving away from the second tensioning rod (702); and a second photoelectric switch (802) is arranged on the bottom plate (101) of the frame (1) at a position corresponding to the first tensioning rod (701) moving close to the second tensioning rod (702).

4. The online continuous paper laying machine for MiniLED backplane glass according to claim 3, characterized in that: The guide mechanism comprises a guide rod (901) connected to the first tensioning rod (701), the guide rod (901) being inserted into a fixing sleeve (902), the fixing sleeve (902) being fixed in the frame (1) and a plurality of guide wheels being arranged on the inner wall of the fixing sleeve (902), the plurality of guide wheels being arranged around the guide rod (901).

5. The online continuous paper laying machine for MiniLED backplane glass according to claim 1, characterized in that: A dust removal mechanism (10) is provided in the frame (1) at the paper (203) cutting mechanism.

6. The online continuous paper laying machine for MiniLED backplane glass according to claim 5, characterized in that: The dust removal mechanism (10) comprises a dust removal barrel (1001), and the dust removal barrel (1001) is provided with a paper scrap inlet (1002) and an air suction port, and a filter element (1003) and a fan are provided at the air suction port.

7. The online continuous paper laying machine for MiniLED backplane glass according to claim 1, characterized in that: The bottom of the frame (1) is located at the front end of the glass transmission, and is provided with a camera (1101); first sliders (1201) are respectively provided at the four corners of the bottom of the bottom plate (101) of the frame (1); a first slideway (1202) is provided at the bottom of the first slider (1201); a hydraulic cylinder (1203) is provided between the first slider (1201) and the first slideway (1202); the hydraulic cylinder (1203) is hinged on the first slideway (1202); and a piston rod of the hydraulic cylinder (1203) is connected to the first slider (1201).

8. The online continuous paper laying machine for MiniLED backplane glass according to claim 1, characterized in that: The first paper driving wheel (301) and the second paper driving wheel (302) are both connected to a second slider (1301), the second slider (1301) is slidably connected to a second slideway (1302), the second slideway (1302) is fixed in the frame (1), and the first paper driving wheel (301) and the second paper driving wheel (302) slide up and down along the second slideway (1302) through the second slider (1301).

9. The online continuous paper laying machine for MiniLED backplane glass according to claim 8, characterized in that: The lifting mechanism (4) comprises a rack (401) arranged on the second sliding block (1301), the rack (401) is meshed with a gear (402), and the gear (402) is driven to rotate by a motor.

10. The online continuous paper laying machine for MiniLED backplane glass according to claim 1, characterized in that: A slope (14) is provided at the paper outlet of the frame (1), and when the paper (203) is output from the paper outlet, it slides down along the slope (14) and is laid on the glass below. A third photoelectric switch (803) is provided at the bottom of the slope (14).

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