Online glass dusting device capable of dynamically responding to powder feeding amount

Abstract

The invention discloses an on-line glass powder scattering device capable of dynamically responding to the powder feeding amount. The on-line glass powder scattering device comprises a conveying mechanism and a powder scattering mechanism, the powder scattering mechanism is arranged above the conveying mechanism and is used for scattering isolation powder to the surface of the glass; the powder scattering mechanism comprises a long-strip-shaped powder scattering box which is arranged in the width direction of the conveying mechanism, and a strip-shaped powder scattering opening is formed in one side of the bottom of the powder scattering box in the length direction. The tops of the two ends of the powder scattering box are fixedly connected with swing rods, the powder scattering device further comprises an inclination angle adjusting executing mechanism, the inclination angle adjusting executing mechanism can drive the swing rods to swing around the hinged positions of the swing rods and the installation rods so as to adjust and maintain the inclination angle of the powder scattering box relative to the horizontal plane, and therefore the inclination angle of a bottom plate of the powder scattering box can be changed. When the conveying speed of the glass on the conveying line changes, the flowing-out speed of the powder from the strip-shaped powder scattering opening can dynamically adapt to the change of the conveying speed, and the situation that the powder scattering amount is insufficient when the conveying speed of the glass is too high and waste is caused by excessive powder scattering when the conveying speed is too low is avoided.

Description

A glass online powder dispensing device with dynamic response to powder feeding amount Technical Field

[0001] This invention relates to the field of glass processing equipment technology, and in particular to an online glass powder application device with dynamic response to powder feeding amount. Background Technology

[0002] In the glass deep processing (such as cutting, edging, cleaning, and stacking) production process, to prevent scratches, adhesion, or abrasions caused by direct surface contact during conveying, handling, or storage of glass sheets, it is usually necessary to spread a uniform layer of isolating powder (such as silica powder, stone powder, etc.) on the glass surface. Currently, online powder spreading machines are widely used in production lines. A typical structure includes a powder storage box spanning above the conveyor belt, with a long strip-shaped powder outlet at the bottom of the box. The powder falls from the outlet onto the glass surface passing below, relying on its own weight or auxiliary vibration.

[0003] However, existing powder-spreading machines generally suffer from a significant technical flaw: the tilt angle of their powder-spreading boxes is usually fixed, resulting in a fixed powder flow rate from the outlet. This static adjustment mode cannot adapt to the dynamically changing conditions of the production line. In actual production, the conveyor speed often varies due to production cycle adjustments, seamless transitions between processes, or handling of abnormalities. When the conveyor speed increases, the glass area passing through the powder-spreading zone per unit time increases, leading to a relatively insufficient supply of powder at a fixed flow rate. This results in an excessively thin powder coverage on the glass surface, or even localized exposure, failing to provide effective isolation and increasing the risk of glass scratches. Conversely, when the conveyor speed decreases, the fixed flow rate of powder becomes relatively excessive, causing powder accumulation on the glass surface, wasting raw materials, and potentially polluting the environment or interfering with subsequent processes. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a glass online powder-spreading device with dynamic response powder feeding amount, thereby solving the technical problem that the existing powder-spreading device cannot linearly adjust the powder feeding amount according to the glass conveying speed.

[0005] To achieve the above technical objectives, the present invention provides a glass online powder-spreading device with dynamic response to powder feeding amount, comprising:

[0006] A conveying mechanism for horizontally conveying glass; a powder-spreading mechanism positioned above the conveying mechanism for spreading isolation powder onto the glass surface; the powder-spreading mechanism includes a long strip-shaped powder-spreading box, which is arranged along the width direction of the conveying mechanism, and a strip-shaped powder-spreading nozzle is opened on one side of its bottom along the length direction; swing rods are fixedly connected to the top of both ends of the powder-spreading box, and the lower ends of the two swing rods are respectively hinged to one end of two mounting rods, and the other ends of the two mounting rods are respectively fixedly connected to both ends of the mounting frame, so that the swing rods can swing around the hinge point with the mounting rods; the powder-spreading device also includes a tilt angle adjustment actuator, which is drivenly connected to the swing rods and is used to drive the swing rods to swing around the hinge point with the mounting rods to adjust and maintain the tilt angle of the powder-spreading box relative to the horizontal plane, thereby adjusting the outflow speed of powder from the strip-shaped powder-spreading nozzle by changing the tilt angle of the bottom plate of the powder-spreading box.

[0007] Furthermore, the tilt adjustment actuator includes a threaded transmission assembly; the threaded transmission assembly includes a screw and a nut threaded onto the screw, the screw being rotatably mounted on a mounting bracket, and the nut being hinged to the upper end of the swing arm; the tilt adjustment actuator also includes a manual operation component, which is located at the end of the screw and is used to receive external rotational driving force; when the manual operation component is driven, the screw is rotated, causing the nut to move axially and push or pull the upper end of the swing arm, thereby realizing the manual adjustment of the tilt angle of the powder distribution box.

[0008] Furthermore, the manual operating component is a handle plate fixedly mounted on the end of the screw.

[0009] Furthermore, the tilt adjustment actuator also includes an automatic drive module; the automatic drive module includes a first bevel gear coaxially mounted on the screw, the first bevel gear meshing with a second bevel gear, the upper end of the second bevel gear being connected to the upper end of the drive shaft, and the lower end of the drive shaft being connected to the power output device through a switchable clutch transmission mechanism; when the clutch transmission mechanism is engaged, the rotational power of the power output device can be transmitted to the screw in sequence through the clutch transmission mechanism, the drive shaft, the second bevel gear and the first bevel gear, driving the screw to rotate.

[0010] Furthermore, the clutch transmission mechanism includes a first end face gear mounted on the lower end of the transmission shaft and a second end face gear that is connected to the output shaft of the power output device. The second end face gear is mounted on a support member that can be raised and lowered in the vertical direction. By raising and lowering the support member, the second end face gear can selectively engage or disengage with the first end face gear.

[0011] Furthermore, the supporting component is a mounting plate, on which the power output device is fixedly mounted.

[0012] Furthermore, the automatic drive module also includes a lifting assembly for driving the mounting plate to rise and fall; the lifting assembly includes an elastic element that provides a downward restoring force, a rotatable cam that serves as a lifting element, and an operating rod connected to the rotatable cam; the upper end of the elastic element is connected to the fixed frame, and the lower end is connected to the mounting plate, the cam is rotatably mounted on the fixed frame, and its sidewall is in contact with the bottom of the mounting plate.

[0013] Furthermore, the lifting assembly also includes a pin, a first positioning hole is provided on the operating lever, and a second positioning hole is provided on the fixing frame accordingly. The pin is fixed inside the first positioning hole and the second positioning hole.

[0014] Furthermore, the tilt adjustment actuator also includes a speed sensor that detects the glass conveying speed in real time, and a controller electrically connected to the speed sensor and the automatic drive module; the controller is configured to receive the speed signal sent by the speed sensor and control the automatic drive module according to the conveying speed detected by the speed sensor to automatically adjust the tilt angle of the powder-spreading box.

[0015] Furthermore, the powder-spreading mechanism also includes a powder inlet pipe connected to the center of the powder-spreading box and a powder delivery pump connected to the powder inlet pipe.

[0016] The beneficial effects of this invention include: 1. The tilt adjustment actuator can drive the swing rod to swing around its hinge with the mounting rod to adjust and maintain the tilt angle of the powder-spreading box relative to the horizontal plane, thereby changing the tilt angle of the powder-spreading box bottom plate. This allows the powder flow rate from the strip-shaped powder-spreading nozzle to dynamically adapt to changes in the conveying speed of the glass on the conveying line, avoiding insufficient powder spreading when the glass conveying speed is too fast and excessive powder spreading when the speed is too slow, thus avoiding waste. This effectively solves the adaptability problem of the traditional fixed powder-spreading mode under variable speed conditions, improving the efficiency of powder use, reducing production costs, and ensuring the uniformity and stability of the powder layer coverage on the glass surface; 2. The speed sensor can monitor the glass conveying speed in real time, and the controller can receive the speed signal sent by the speed sensor and control the automatic drive module according to the conveying speed detected by the speed sensor to automatically adjust the tilt of the powder-spreading box. The angled design ensures that the powder flow rate strictly corresponds to the glass travel speed, guaranteeing that each glass surface receives a uniform and appropriate amount of isolation powder coverage. This fundamentally eliminates the problem of excessive or insufficient powder application caused by speed variations in traditional equipment, greatly improving product yield. The unique clutch transmission design physically isolates the manual and automatic drive links. In automatic mode, the power output device is precisely driven by the meshing first and second end face gears. When switching to manual mode, the first and second end face gears disengage, completely cutting off the drive link. Manual operation can then be performed without interference. This design fundamentally eliminates the risk of interference between the two modes, ensuring that even in the extreme case of complete failure of the automatic control system, the equipment can still maintain core production functions through purely mechanical means, providing ultimate assurance for production continuity and significantly improving system reliability and resilience. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the glass online powder-spreading device with dynamic response powder feeding according to an embodiment of the present invention; Figure 2 is an enlarged view of point A in Figure 1; Figure 3 is a schematic diagram of the tilt angle adjustment actuator according to an embodiment of the present invention; Figure 4 is another state diagram of the tilt angle adjustment actuator according to an embodiment of the present invention; Figure 5 is yet another state diagram of the tilt angle adjustment actuator according to an embodiment of the present invention; Figure 6 is a circuit principle block diagram of the tilt angle adjustment actuator according to an embodiment of the present invention; In the figures: 1, conveying mechanism; 2, powder-spreading mechanism; 21, powder-spreading box; 211, powder-spreading port; 22, swing rod; 23, mounting rod; 24, mounting frame; 25, powder inlet pipe; 26, powder conveying pump; 3, tilt angle adjustment actuator; 31, threaded drive assembly Components; 311, Screw; 312, Nut; 32, Manual operating component; 33, Automatic drive module; 331, First bevel gear; 332, Second bevel gear; 333, Drive shaft; 334, Clutch transmission mechanism; 3341, First end face gear; 3342, Second end face gear; 335, Power output device; 336, Support component; 337, Lifting assembly; 3371, Elastic element; 3372, Cam; 3373, Operating lever; 33731, First positioning hole; 3374, Fixing bracket; 33741, Second positioning hole; 3375, Pin; 3376, Guide sleeve; 3377, Guide rod; 34, Speed ​​sensor; 35, Controller. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0019] This invention provides a glass online powder spreading device with dynamic response to powder feeding amount, which aims to adjust the powder spreading amount to meet the uniform powder spreading requirements under different glass conveying speeds.

[0020] As shown in Figure 1, the powder spreading device mainly includes a conveying mechanism 1, a powder spreading mechanism 2, and an angle adjustment actuator 3.

[0021] The conveying mechanism 1 is used to horizontally convey glass substrates. Its specific structure can be a roller conveyor or a belt conveyor, which is a conventional technology in this field and will not be described in detail here.

[0022] As shown in Figure 2, the powder-spreading mechanism 2 is located above the conveying mechanism 1 and is used to evenly spread isolation powder (such as anti-mildew powder, talcum powder, etc.) onto the glass surface below it. The core component of the powder-spreading mechanism 2 is a long strip-shaped powder-spreading box 21 arranged along the width direction of the conveying mechanism 1. A strip-shaped powder-spreading port 211 is opened on one side of the bottom of the powder-spreading box 21 along its length direction. The powder flows out from this port and falls onto the glass surface. In order to ensure the continuous supply of powder in the powder hopper, the powder-spreading mechanism 2 also includes a powder inlet pipe 25 connected to the middle of the powder-spreading box 21 and a powder conveying pump 26 connected to the powder inlet pipe 25. The powder conveying pump 26 can continuously pump the powder in the powder storage hopper (not shown in the figure) into the powder-spreading box 21.

[0023] The tilt angle of the powder dispensing box 21 is key to adjusting the powder flow rate. To this end, swing rods 22 are fixedly connected to the top of both ends of the powder dispensing box 21. The lower ends of the two swing rods 22 are respectively hinged to one end of two mounting rods 23, and the other ends of the two mounting rods 23 are respectively fixedly connected to both ends of a fixed mounting bracket 24. This structure allows the swing rods 22 and the powder dispensing box 21 as a whole to swing around the hinge point between them and the mounting rods 23.

[0024] The tilt adjustment actuator 3 is used to drive the above-mentioned swing to adjust and maintain the tilt angle of the powder box 21 relative to the horizontal plane, thereby precisely adjusting the flow rate of powder from the strip powder outlet 211 by changing the tilt angle of the bottom plate of the powder box 21. This mechanism integrates both manual and automatic adjustment modes.

[0025] As shown in Figures 3-5, the tilt adjustment actuator 3 includes a set of threaded transmission components 31. This component includes a horizontally arranged screw 311 and a nut 312 threadedly connected to the screw 311. The screw 311 is rotatably mounted on the fixed mounting bracket 24 through a bearing seat. The nut 312 is connected to the upper end of the swing rod 22 through a hinge. A handle plate, which serves as a manual operation component 32, is fixedly installed at one end of the screw 311. When the operator rotates the handle plate, it will drive the screw 311 to rotate, forcing the nut 312 to move along the screw axial direction, thereby pushing and pulling the upper end of the swing rod 22 to achieve manual stepless adjustment of the tilt angle of the powder box 21.

[0026] To achieve automated adjustment, the tilt adjustment actuator 3 further integrates an automatic drive module 33. This module includes a first bevel gear 331 coaxially fixed on the screw 311, which meshes with a second bevel gear 332. The upper end of the second bevel gear 332 is connected to the upper end of a vertical drive shaft 333, and the lower end of the drive shaft 333 is connected to a power output device 335 (such as a servo motor or stepper motor) through a switchable clutch transmission mechanism 334.

[0027] Specifically, the clutch transmission mechanism 334 includes a first end face gear 3341 fixedly mounted on the lower end of the transmission shaft 333, and a second end face gear 3342 fixedly mounted on the output shaft of the power output device 335. The second end face gear 3342 is not directly fixed, but is mounted on a support component 336 that can be raised and lowered in the vertical direction. In this embodiment, the support component 336 is a mounting plate, and the power output device 335 is also fixedly mounted on this plate. By raising and lowering this mounting plate, the second end face gear 3342 can selectively engage or disengage with the first end face gear 3341, thereby realizing the engagement and disengagement of power transmission.

[0028] To facilitate control of the clutch action, the automatic drive module 33 also includes a lifting assembly 337. This assembly includes an elastic element 3371 (such as a compression spring) that provides downward reset force, a rotatable cam 3372 that acts as a lifting element, and an operating lever 3373 connected to the cam 3372. The upper end of the elastic element 3371 is connected to a fixed frame 3374, and the lower end is connected to the mounting plate. The cam 3372 is rotatably mounted on the fixed frame 3374, and its sidewall contacts the bottom of the mounting plate. When the clutch needs to be engaged, the operating lever 3373 is moved, causing the cam 3372 to rotate its protruding portion. The mounting plate is lifted to overcome the elastic force of the elastic element 3371, causing the second end face gear 3342 to rise and mesh with the first end face gear 3341. When separation is required, the operating lever 3373 is reversed, the protruding part of the cam 3372 rotates open, and the mounting plate descends under the restoring force of the elastic element 3371, causing the two end face gears to separate. To lock the operating position, the operating lever 3373 is provided with a first positioning hole 33731, and the fixing bracket 3374 is provided with a corresponding second positioning hole 33741. The positions of the operating lever 3373 and the cam 3372 can be fixed by inserting the pin 3375.

[0029] To ensure stable lifting and lowering of the mounting plate, prevent it from tilting or jamming during the lifting process, and ensure accurate and reliable engagement and disengagement of the end face gears, the structure of the lifting assembly 337 can be further optimized.

[0030] In the lifting assembly 337, a guide structure is added. Specifically, at least two guide sleeves 3376 are fixedly installed on the mounting plate. Correspondingly, on the fixing frame 3374, a guide rod 3377 is fixedly installed at the position of each guide sleeve 3376. The guide rod 3377 is set vertically, and its lower end passes into the corresponding guide sleeve 3376 and forms a sliding fit with the guide sleeve 3376.

[0031] When the operating lever 3373 drives the cam 3372 to rotate, thereby lifting or releasing the mounting plate, the mounting plate will move strictly in a vertical straight line along the fixed guide rod 3377 without any horizontal deviation or rotation around the vertical axis. This improvement significantly enhances the smoothness and accuracy of the mounting plate's lifting and lowering motion, thereby ensuring that the first end face gear 3341 and the second end face gear 3342 in the clutch transmission mechanism 334 can achieve fast, accurate, and centered meshing and disengagement, improving the reliability of the automatic drive module 33.

[0032] To achieve dynamic response, as shown in Figure 6, the tilt adjustment actuator 3 also includes a speed sensor 34 (such as an encoder, laser velocimeter, etc.) that detects the glass conveying speed in real time, and a controller 35 (such as a PLC or industrial computer) that is electrically connected to the speed sensor 34 and the power output device 335 in the automatic drive module 33, respectively. The controller 35 is configured to execute the following automatic control logic: receive the glass conveying speed signal sent by the speed sensor 34 in real time; calculate the target tilt angle of the powder-spreading box 21 required at the current speed according to the preset "conveyor speed-optimal tilt angle" mathematical model or corresponding relationship; and then send a control command to the power output device 335 to drive it to rotate forward or reverse by the corresponding angle. Through the aforementioned gear, clutch and screw transmission, the powder-spreading box 21 is finally adjusted and maintained at the calculated target tilt angle, thereby realizing automatic, real-time and closed-loop control of the powder-spreading amount as the production line speed changes.

[0033] This invention, through ingenious mechanical structure design, combines manual and automatic control, especially through a clutch mechanism to achieve safe and convenient switching between manual and automatic modes. Furthermore, through closed-loop control with speed feedback, it effectively solves the problem that traditional powder-spreading devices have a fixed powder supply and cannot adapt to changes in production line speed, thus significantly improving the quality stability and automation level of the powder-spreading process in glass deep processing.

[0034] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A glass online powder-spreading device with dynamic response to powder feeding, characterized in that, include: A conveying mechanism (1) for horizontally conveying glass; a powder-spraying mechanism (2) disposed above the conveying mechanism (1) for spraying isolation powder onto the glass surface; the powder-spraying mechanism (2) includes a long strip-shaped powder-spraying box (21), which is arranged along the width direction of the conveying mechanism (1), and has a strip-shaped powder-spraying opening (211) on one side of its bottom along the length direction; both ends of the powder-spraying box (21) are fixedly connected to swing rods (22), and the lower ends of the two swing rods (22) are respectively hinged to one end of two mounting rods (23), and the two mounting rods (23) are respectively hinged to one end of two mounting rods (23). One end is fixedly connected to both ends of the mounting bracket (24), so that the swing rod (22) can swing around the hinge point between it and the mounting rod (23); the powder spreading device also includes an angle adjustment actuator (3), which is connected to the swing rod (22) for driving the swing rod (22) to swing around the hinge point between it and the mounting rod (23) to adjust and maintain the tilt angle of the powder spreading box (21) relative to the horizontal plane, thereby adjusting the flow rate of powder from the strip powder spreading port (211) by changing the tilt angle of the bottom plate of the powder spreading box (21).

2. The online glass powder dispensing device with dynamic response powder feeding according to claim 1, characterized in that, The tilt angle adjustment actuator (3) includes a threaded transmission assembly (31); the threaded transmission assembly (31) includes a screw (311) and a nut (312) threadedly connected to the screw (311). The screw (311) is rotatably mounted on the mounting bracket (24), and the nut (312) is hinged to the upper end of the swing rod (22). The tilt angle adjustment actuator (3) also includes a manual operation component (32), which is located at the end of the screw (311) and is used to receive external rotational driving force. When the manual operation component (32) is driven, the screw (311) is rotated, causing the nut (312) to move axially and push and pull the upper end of the swing rod (22), thereby realizing the manual adjustment of the tilt angle of the powder box (21).

3. The online glass powder dispensing device with dynamic response powder feeding according to claim 2, characterized in that, The manual operation component (32) is a handle plate fixedly installed at the end of the screw (311).

4. The online glass powder dispensing device with dynamic response powder feeding according to claim 2, characterized in that, The tilt adjustment actuator (3) further includes an automatic drive module (33); the automatic drive module (33) includes a first bevel gear (331) coaxially mounted on the screw (311), the first bevel gear (332) meshing with the second bevel gear (332), the upper end of the second bevel gear (332) being connected to the upper end of the transmission shaft (333), and the lower end of the transmission shaft (333) being connected to the power output device (335) through a switchable clutch transmission mechanism (334); when the clutch transmission mechanism (336) is in the engaged state, the rotational power of the power output device (335) can be transmitted to the screw (311) in sequence through the clutch transmission mechanism (334), the transmission shaft (333), the second bevel gear (332) and the first bevel gear (332), driving the screw (311) to rotate.

5. The glass online powder-spreading device with dynamic response powder feeding according to claim 4, characterized in that... The clutch transmission mechanism (334) includes a first end face gear (3341) mounted on the lower end of the transmission shaft (333) and a second end face gear (3342) that is connected to the output shaft of the power output device (335). The second end face gear (3342) is mounted on a support member (336) that can be raised and lowered in the vertical direction. By raising and lowering the support member (336), the second end face gear (3342) can selectively engage or disengage with the first end face gear (3341).

6. The glass online powder-spreading device with dynamic response powder feeding according to claim 5, characterized in that, The support component (336) is a mounting plate, and the power output device (335) is fixedly mounted on the mounting plate.

7. The online glass powder dispensing device with dynamic response powder feeding according to claim 6, characterized in that, The automatic drive module (33) also includes a lifting assembly (337) for driving the mounting plate to rise and fall; the lifting assembly includes an elastic element (3371) that provides a downward restoring force, a rotatable cam (3372) as a lifting element, and an operating rod (3373) connected to the rotatable cam (3372); the upper end of the elastic element (3371) is connected to the fixed frame (3374), and the lower end is connected to the mounting plate; the cam (3372) is rotatably mounted on the fixed frame (3374), and its sidewall is in contact with the bottom of the mounting plate.

8. The online glass powder dispensing device with dynamic response powder feeding according to claim 7, characterized in that, The lifting assembly (337) also includes a pin (3375), the operating lever (3373) has a first positioning hole (33731), the fixing frame (3374) has a corresponding second positioning hole (33741), and the pin (3375) is fixed inside the first positioning hole (33731) and the second positioning hole (33742).

9. The online glass powder dispensing device with dynamic response powder feeding according to claim 4, characterized in that, The tilt angle adjustment actuator (3) further includes a speed sensor (34) for real-time detection of glass conveying speed and a controller (35) electrically connected to the speed sensor (34) and the automatic drive module (33); the controller (35) is configured to receive the speed signal sent by the speed sensor (34) and control the automatic drive module (33) according to the conveying speed detected by the speed sensor (34) to automatically adjust the tilt angle of the powder box (21).

10. The glass online powder-spreading device with dynamic response powder feeding according to claim 1, characterized in that, The powder-spreading mechanism (2) also includes a powder inlet pipe (25) connected to the middle of the powder-spreading box (21) and a powder delivery pump (26) connected to the powder inlet pipe (25).

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