A dynamic water cooling system for a spray belt device

Abstract

This invention discloses a dynamic water-cooling system for a belt spraying device. It includes a cooling cavity within a copper roller, a dynamic sealing connection device, and a hollow shaft fixedly connected to the copper roller, connecting the cooling cavity to the corresponding dynamic sealing connection device. The dynamic sealing connection device is mounted on a sliding frame, and the hollow shaft is mounted on the sliding frame via a corresponding bearing device. The sliding frame is slidably mounted on the machine frame. This dynamic water-cooling system for the belt spraying device has a simple and reasonable structure, excellent overall structural performance, and good cooling effect.

Description

Technical Field

[0001] This invention relates to a belt spraying device. More particularly, it relates to a dynamic water cooling system for the belt spraying device. Background Technology

[0002] Existing spray belt equipment suffers from several drawbacks. Firstly, its overall structure is flawed, making production operations inconvenient. The fit and operation of the copper roller and nozzle are particularly problematic, leading to easy damage to the copper roller surface, short lifespan, and compromised spray belt quality. Secondly, the unsuitable polishing device structure and operation result in the cooling copper roller's working surface being susceptible to adhesion of hard particles, dirt, scale, and debris, leading to poor polishing and hindering normal equipment operation. Thirdly, the copper roller's cooling system is complex, difficult to debug, and lacks operational stability. During operation, the dynamic sealing connection device becomes unstable due to vibrations from the spray belt equipment, and the dynamic sealing structure is highly susceptible to unbalanced forces, resulting in a short lifespan. Furthermore, the cooling system is affected by changes in the cooling medium pressure, exhibiting poor adaptability and making installation and debugging difficult. All of these factors negatively impact spray belt production efficiency. Summary of the Invention

[0003] To address the shortcomings of the existing technology, this invention provides a dynamic water-cooling system for a spray belt device. This dynamic water-cooling system for the spray belt device has a simple and reasonable structure, excellent overall performance, and good cooling effect.

[0004] The technical solution of the dynamic water cooling system of the spray belt device of the present invention includes a cooling inner cavity provided in the copper roller, including a dynamic sealing connection device, and a hollow shaft fixedly connected to the copper roller and connected between the cooling inner cavity of the copper roller and the corresponding dynamic sealing connection device. The dynamic sealing connection device is provided on the sliding frame, and the hollow shaft is provided on the sliding frame through a corresponding bearing device. The sliding frame is slidably provided on the machine frame.

[0005] The dynamic sealing connection device is connected to the cooling water source circuit through a corresponding telescopic sealing coupling device.

[0006] The dynamic sealing connection device includes a connecting sleeve and a stationary ring disposed in the inner cavity of the connecting sleeve.

[0007] The spray belt device and its dynamic water cooling system of the present invention have a simple and reasonable overall structure, are easy to use and operate, have high cooling efficiency and good effect, and help to improve the production quality and efficiency of spray belts.

[0008] Its dynamic water cooling system boasts excellent dynamic sealing performance. On one hand, its cooling circulation is smooth, adapting to both the dynamic sealing cooling of the rotating copper roller and the dynamic spray-belt changing sealing cooling of its moving movement. Through the organic and rational combination of its dynamic sealing connection device and telescopic sealing coupling device, it can simultaneously meet the multi-directional, three-dimensional dynamic water supply cooling requirements of the copper roller's rotation and axial movement, resulting in low circulation resistance. On the other hand, it can adaptively and automatically adjust to the pressure changes of the circulating water supply dynamic water cooling system, maintaining the long-term stable and reliable operation of the automatic water cooling system. The dynamic and static coordination is balanced, stable, and reliable, with a long service life, and its commissioning is particularly simple, even requiring no commissioning at all.

[0009] In addition, the polishing device of its spray belt system and the copper roller are scientifically and rationally designed and operated. By evenly distributing the storage interval channels on the stacked grinding wheels and combining them with extraction and cleaning, secondary aggregation and adhesion are avoided. Polishing and storage are carried out simultaneously, resulting in a particularly good polishing effect. Attached Figure Description

[0010] Figure 1 This is a schematic diagram illustrating the principle and structure of an embodiment of the spray belt device of the present invention; Figure 2 for Figure 1 One-side view; Figure 3 This is a cross-sectional view of the copper roller and its dynamic water cooling system of the present invention. Figure 4 This is a schematic diagram of an embodiment of the stacked polishing wheel of the polishing device of the present invention; Figure 5 for Figure 4 Side view structural diagram; Figure 6 This is a schematic diagram of the abrasive block structure of an embodiment of the stacked polishing wheel of the present invention; Figure 7 for Figure 6 Schematic diagram of cross-section structure. Figure 8 for Figure 6 Top view of the structure; Figure 9 for Figure 6 Schematic diagram of the structure viewed through the axis; Figure 10 This is a schematic diagram illustrating the principle structure of another embodiment of the dynamic water cooling system of the present invention; Figure 11 This is a schematic diagram of another embodiment of the dynamic sealing connection device of the dynamic water cooling system of the present invention; Figure 12 This is a schematic diagram of the piston cylinder control system of a dynamic water cooling system according to another embodiment of the present invention; Figure 13 This is a control principle diagram of another embodiment of the piston cylinder control system of the dynamic water cooling system of the present invention; Figure 14 This is a schematic diagram of an embodiment of the equalization cooling device of the present invention. Detailed Implementation

[0011] In order to better understand the technical solution of the present invention, the present invention will now be clearly and completely described through embodiments and accompanying drawings.

[0012] The present invention provides a spraying device and a spraying method for making a sprayed belt: the spraying is performed by a moving copper roller relative to the nozzle in a dynamic spraying manner.

[0013] like Figure 1-3 As shown. The spraying device of the present invention includes a frame 40, a copper roller 20 disposed on the frame 40, a copper roller polishing device, a copper roller dynamic water cooling system, and a medium-frequency induction heating furnace 27 and its nozzles 27a fixed to the frame. The frame 40 is connected to a cantilever 40a via a column at one end, and the medium-frequency induction heating furnace is disposed on the cantilever. An automatic split-and-joint support device is provided corresponding to the cantilever 40a. The automatic split-and-joint support device includes a transverse telescopic actuator 29 disposed on the column at the other end of the frame, a guide sleeve 25, and a conical tip connecting positioning shaft 25a connected between the telescopic actuator and the conical connecting sleeve 24 at the free end of the cantilever via the guide sleeve. When the medium-frequency induction heating furnace is under load, the telescopic actuator 29 is controlled by a corresponding controller to extend the conical tip connecting positioning shaft 25a to engage with the corresponding conical connecting sleeve 24 to position and reinforce the cantilever.

[0014] The copper rollers, their dynamic water cooling system, and polishing equipment are all mounted on the sliding frame. A track system connects the sliding frame to the machine frame.

[0015] The copper roller 20 is fixedly connected to the hollow shaft 19 corresponding to the nozzle 27a at the lower end of the medium-frequency induction heating furnace 27. The hollow shaft is mounted on the sliding frame 50 via a hollow shaft bearing 46. The medium-frequency induction heating furnace 27 and the nozzle 27a are mounted on the cantilever 40a of the frame. The sliding frame 50 is mounted on the frame 40 via a track device 51. A piston cylinder or a servo-driven electric telescopic rod connects the sliding frame 50 to the frame 40. The sliding frame 50 can move back and forth along the axial direction of the copper roller relative to the nozzle 27a on the medium-frequency induction heating furnace 27 via its track device 51.

[0016] Controlled by a corresponding controller, during operation, the copper roller 20, via its sliding frame and track device, can move back and forth continuously or intermittently relative to the nozzle 27a along the axial direction of the copper roller at a certain speed and frequency. This allows different parts of the copper roller surface to be swirled and spun with the nozzle. In other words, during operation, the copper roller continuously or intermittently changes its swirling and spun working position at a certain frequency and speed. This avoids the copper roller from constantly or for extended periods operating in the same position to receive the sprayed liquid from the nozzle, effectively protecting the copper roller from localized overheating and damage, and preventing the surface finish of the copper roller from being affected by prolonged localized operation, thus impacting the quality of the sprayed belt.

[0017] like Figure 4-9As shown. Its polishing device includes stacked polishing wheels 1 and a suction and cleaning device. The polishing device includes two stacked polishing wheels 1 respectively disposed on both sides of the copper roller 20, and corresponding drive devices, etc. The stacked polishing wheels 1 include stacked grinding wheels 1a and their hubs 1b, and the drive device includes a permanent magnet synchronous motor 100. The permanent magnet synchronous motor can be installed inside the hub 1b of the stacked polishing wheels.

[0018] The permanent magnet of the permanent magnet synchronous motor 100 is disposed inside the stator 101, and the armature winding is disposed inside the rotor 102. The stator 101 includes two interconnected housings, left and right (relative to the axial direction), and the rotor 102 is disposed in the cavity formed by the two housings.

[0019] The rotor 102 is fixed to a corresponding bracket via its fixed shaft 104. In this example, the bracket includes an adjustment bracket 44 and a rocker arm bracket 43 (specifically depending on whether the stacked polishing wheel 1 is located in front of or behind the copper roller). The stator is rotatably connected to the rotor 102 or its hub 1b via bearings 103, and the stacked grinding wheel (or stacked grinding wheel section) 1a is fixedly connected to its hub 1b.

[0020] That is, the permanent magnet synchronous motor structure and corresponding operation mode of the present invention are equivalent to the existing permanent magnet synchronous motors in that: the structure of the corresponding rotor is set to be wrapped around a stator and its two end caps (or tube and its two end caps), and the shape of the corresponding stator is set to be similar to the rotor (or column). The permanent magnet and the armature winding are respectively set in the corresponding "rotor" and the corresponding "stator" of the similar stator and its two end caps or tube and its two end caps shape structure.

[0021] The corresponding "rotor" with a shape similar to a stator and its two end caps or a tube and its two end caps has corresponding shaft holes on its opposite sides. The corresponding "stator" with a shape similar to a rotor or a column has column-shaped protrusions on its opposite sides that correspond to the shaft holes and are located on the axis. The column-shaped protrusions form the fixed shaft of the corresponding "stator" with a shape similar to a rotor or a column.

[0022] A corresponding "rotor" with a shape similar to a stator and its two end caps or a tube and its two end caps is rotatably connected to a corresponding "stator" with a shape similar to a rotor or a column through its shaft hole via bearing 103. The two ends of the fixed shaft of the corresponding "stator" with a shape similar to a rotor or a column are fixedly connected to corresponding brackets.

[0023] The electromagnetic principle setting structure and method of its permanent magnet synchronous motor, including the setting principle structure of permanent magnets and armature windings in the corresponding "rotor" (i.e., stator 101) and the corresponding "stator" (i.e., rotor 102), can be similar to the setting principle structure of existing permanent magnet motors.

[0024] The significant features of the polishing device of the present invention are its small size, compact structure, minimal space occupation, reduced rotational engagement points, exceptionally stable and reliable operation of the transmission rotating components, rapid start-up, and ability to ensure the polishing effect of the copper roller.

[0025] The adjustment frame 44 or rocker arm 43 of the stacked polishing wheel is set on the sliding frame 50 of the copper roller via a corresponding guide rail device. The stacked polishing wheel (or its stacked grinding wheel 1a) corresponds to the spray nozzle and moves back and forth along the axis of the copper roller within a certain range or amplitude and at a certain speed and / or frequency relative to the copper roller via its guide rail device. This effectively avoids the stacked grinding wheel polishing the same part of the copper roller for a long time, thus preventing marks, grooves, etc. from being ground on the surface of the copper roller, and ensuring the polishing degree of the copper roller surface.

[0026] The stacked polishing wheel 1, located on one side of the copper roller spinning thin strip, is set below the horizontal center line via a rocker arm 43. The rocker arm 43 is connected to the slide 8 via a corresponding hinge shaft. The slide 8 is connected to the sliding frame 50 via a guide rail device 45a. A piston cylinder or electric telescopic rod is connected between the rocker arm 43 and the adjusting frame 44a. The polishing position and / or polishing degree (or the tightness of the fit between the stacked polishing wheel and the copper roller) can be adjusted by controlling the piston cylinder or electric telescopic rod.

[0027] The stacked polishing wheel 1 on the other side of the copper roller is positioned at or above the horizontal centerline of the copper roller via an adjusting frame 44. The adjusting frame 44 is mounted on a corresponding slide via a corresponding guide rail device, and the corresponding slide is mounted on the sliding frame 50 via a corresponding guide rail device 45. An adjusting screw 26 is connected between the adjusting frame 44 and the corresponding slide. The adjusting screw 26 is used to adjust the corresponding polishing position and / or polishing degree (or the tightness of the fit between the stacked polishing wheel and the copper roller).

[0028] The stacked polishing wheel arrangement can, on the one hand, avoid the stacked polishing wheels affecting the copper roller and prevent splashing, and on the other hand, achieve the polishing effect of two stacked polishing wheels on the copper roller.

[0029] The stacked polishing wheel 1 is composed of abrasive blocks 2 connected to each other in the circumferential direction. Each abrasive block 2 of the stacked polishing wheel 1 has a receiving and spacer channel 3. Each abrasive block 2 includes a core body 2a and a wrapping layer 4 wrapped around the core body 2a. The core body 2a is composed of several overlapping abrasive cloths or sandpapers 5, and the wrapping layer 4 is composed of a piece of abrasive cloth or sandpaper 5 wrapped around the core body. The outer arc-shaped wall surface (working wall surface) of each abrasive block 2 of the stacked polishing wheel is the same as the circumference. That is, the outer circumferential wall surface of the stacked polishing wheel 1 is discontinuously formed by the corresponding outer wall surfaces of each abrasive block 2.

[0030] When making the abrasive block 2, a piece of abrasive cloth or sandpaper can be used to pack and compress several pieces of abrasive cloth or sandpaper stacked together using appropriate packaging machinery, and strong adhesive can be used to bond them at the overlapping interface 4a of the abrasive cloth or sandpaper used for packaging, thus making the abrasive block 2.

[0031] Its extraction and cleaning device includes an open collection sleeve 6 and an induced draft fan 7. The open collection sleeve 6 surrounds most of the stacked polishing wheel body, and the polishing working part on one side of the stacked polishing wheel 1 protrudes from the corresponding open port on the open collection sleeve 6. A circulating air inlet 6a communicating with the atmosphere is provided on one side of the open collection sleeve 6. The circulating air inlet 6a is formed by the gap formed between the open port on this side of the open collection sleeve 6 and the outer wall surface of the corresponding polishing working part on one side of the stacked polishing wheel 1.

[0032] The open collection sleeve 6 has a discharge outlet at its bottom, and the inlet of the induced draft fan 7 is connected to the discharge outlet of the open collection sleeve 6. The induced draft fan operates continuously or intermittently to continuously or periodically collect and discharge particles, dust, and other debris that fall into the collection gap channel during polishing.

[0033] The significant advantage of the polishing device of this invention lies in its ability to collect hard objects, dirt, particles, dust, etc., such as metal, online and in a timely manner through the collection gap channels, and then remove them through the extraction and cleaning device. This fundamentally solves the problems caused by the iron filings, hard materials, particles, and debris generated during polishing due to the composition, material properties, and characteristics of the grinding wheel and the spraying process. These contaminants adhere to the working surface of the cooling roller, causing changes in the roughness or smoothness of the working surface during the belt spinning process, which in turn affects the quality of the sprayed belt and makes polishing the cooling roller more difficult.

[0034] like Figure 3 As shown. Its copper roller dynamic water cooling system includes a dynamic sealing connection device 22, a cooling inner cavity 21 disposed within the copper roller, and a hollow shaft 19 inner cavity connected to the sliding frame 50 via a corresponding bearing device. The copper roller 20 is fixedly connected to the hollow shaft. A guide cylinder 23 connected to the hollow shaft is provided within the cooling inner cavity of the copper roller. The dynamic sealing connection device 22 includes a rotary joint similar to those in the prior art.

[0035] The hollow shaft 19 has water inlet holes 21a and water outlet holes 21b on both sides of the inner guide cylinder, which are connected to the cooling cavities on both sides. One end of the water inlet hole and water outlet hole of the hollow shaft 19 is connected to the water outlet end or water inlet end of the dynamic sealing connection device 22, respectively. Its copper roller dynamic water cooling system also includes a telescopic sealing coupling device. The dynamic water cooling system or device is connected to the cooling water source or its circulation loop through the telescopic sealing coupling device. The telescopic sealing coupling device is an elastic pipe connector 28. One end of one elastic pipe connector 28 is connected to the water inlet end of the dynamic sealing connection device 22 through the transition cooling channel 53 set on the slide frame, and the other end is connected to the water outlet of the cooling water source. One end of the other elastic pipe connector 28 is connected to the water outlet end of the dynamic sealing connection device 22 through the transition cooling channel 53 set on the slide frame, and the other end is connected to the water return port of the cooling water source. The telescopic sealing coupling device or its elastic pipe connector is suspended from the frame and is in an integral movable state. The cooling water source is located on the frame or is an external static cooling water source.

[0036] During operation, cooling water enters the cooling chamber on one side of the guide inner cylinder of the copper roller through the inlet hole at the corresponding end of the hollow shaft from the cooling water source, and then flows back to the cooling water source from the cooling chamber on the other side of the guide inner cylinder and the outlet hole. The flow path of the cooling water is as follows: Figure 3 As shown by the arrow lines in the image.

[0037] In Embodiment 2 of the present invention. For example... Figure 10-12 As shown. The cantilever connection end can also be rotatably connected to the corresponding column at one end of the frame, which facilitates the rotation and repositioning of the cantilever, making it easier to install, debug, and maintain the equipment below.

[0038] The abrasive blocks 2 of the stacked polishing wheel 1 can be directly made by applying glue to each other and stacking them together before extruding them into shape.

[0039] The dynamic sealing connection device 22 includes a connecting sleeve 10 fixedly connected to the sliding frame. A stationary ring 11 is provided inside the connecting sleeve, and a sealing element 13 is provided between the outer peripheral wall of the stationary ring and the inner peripheral wall of the connecting sleeve. A corresponding end of the hollow shaft 19 is rotatably connected to the connecting sleeve 10 via a corresponding bearing 15. Shaft retaining rings 14 and bore retaining rings 16 are respectively connected between the two sides of the bearing 15 and the hollow shaft and the connecting sleeve. Wear-resistant alloy rings or ceramic rings 12 are respectively inlaid on the opposing end faces of the stationary ring and the hollow shaft, and the stationary ring and the hollow shaft are sealed together by mutual friction of their wear-resistant alloy rings or ceramic rings.

[0040] Multiple receiving holes are evenly distributed around the axis of the corresponding end face of the connecting sleeve 10. The piston rod of the piston cylinder 17 is connected to the corresponding side wall of the stationary ring 11 through a balance frame 18 composed of multiple connecting rods. The piston cylinder body is fixedly connected to the corresponding part of the connecting sleeve or the sliding frame.

[0041] The two drive medium connection ports of the piston cylinder are respectively connected to the corresponding two ports of the two-position four-way control solenoid valve 30. The other two ports of the two-position four-way control solenoid valve 30 are respectively connected to the input end 19a and the output end 19b of the cooling water of the copper roller. The electrical signal of the two-position four-way control solenoid valve 30 is connected to the corresponding controller 31. The inlet or outlet end of the connecting sleeve 10 is connected to the corresponding flexible pipe fitting (rubber hose fitting) 28. The rubber hose fitting is also connected to the output end or the input end of the cooling water of the copper roller.

[0042] During operation, cooling water enters the cooling chamber on one side of the guide inner cylinder of the copper roller through the inlet hole at the corresponding end of the hollow shaft from the cooling water source, and then flows back to the cooling water source from the cooling chamber on the other side of the guide inner cylinder and the outlet hole. The piston cylinder applies a certain pressure to the stationary ring through its piston rod according to the pressure difference between the input and output of the cooling water of the copper roller, thereby realizing the dynamic and static friction sealing connection of the cooling water flow channel.

[0043] The piston cylinder exerts balanced pressure on the stationary ring plane, ensuring a balanced sealing friction between the stationary ring and the end face of the hollow shaft. Therefore, only a small amount of pressure is needed to achieve a reliable dynamic-static seal. Furthermore, because the piston cylinder is connected to the cooling water input and output channels of the copper roller, it utilizes the pressure difference of its circulating cooling water for differential drive control. This results in an adaptive automatic adjustment function for the sealing friction, excellent dynamic-static friction sealing performance, and significant savings in power consumption. The remaining structure and operation control methods in this example are similar to those in the above embodiments.

[0044] In Embodiment 3 of the present invention, the stacked polishing wheel 1 can be manufactured by first stacking sandpaper or the like to create a complete disc-shaped or annular sand core, and then equally spaced receiving interval grooves are cut into the outer peripheral wall of the disc-shaped or annular sand core, which divides the disc-shaped or annular sand core into several abrasive blocks. The disc-shaped or annular sand core can be connected to a core disc or directly to a corresponding rotating shaft, etc.

[0045] like Figure 13 As shown. Its controller has a setpoint module 31a. A differential pressure sensor 32 is installed in the cooling water channel of the cooling chamber of the copper roller. The electrical signal of the differential pressure sensor is connected to the controller 31. The corresponding output electrical signal of the controller is connected to the control solenoid valve 30a of the piston cylinder. The other two ports of the control solenoid valve 30a are respectively connected to the corresponding driving medium pressure source 19c and medium return source 19d of the piston cylinder. An initial pressure value is set through the controller's setpoint. The controller superimposes this initial pressure value with the pressure detection signal input from the differential pressure sensor, and then outputs a control signal based on this superimposed signal to control the piston cylinder to apply a certain pressure to the stationary ring. The setpoint value of the setpoint is generally greater than or equal to zero. The remaining structure and operation control method of this example are similar to those of Embodiment 2 above.

[0046] In Embodiment 4 of the present invention, the input and output ends of the cooling water in the cooling chamber of the copper roller are directly connected to the two drive medium ports of the piston cylinder, either directly or through corresponding control valves. The remaining structure and operation control method of this embodiment are similar to those of Embodiments 2 and 3 above.

[0047] In embodiment 5 of the present invention, as Figure 14 As shown, the copper roller is equipped with a balanced cooling device, which includes balanced cooling guide holes 23a distributed in the inner guide cylinder 23. The balanced cooling guide holes 23a are distributed on the side wall of the inner guide cylinder and connected to the cooling cavities (interlayers) on opposite sides of the copper roller, separated by the inner guide cylinder. This device can balance the heat exchange efficiency of the entire copper roller. On the one hand, it can reflux the flow of cooling water, expand its effective flow channel area, increase the effective cooling medium flow rate, and significantly improve the cooling effect; on the other hand, it can significantly reduce the circulation resistance of the cooling medium and reduce power consumption. The remaining structure and operation control methods of this example are similar to any of the above embodiments.

Claims

1. A dynamic water-cooling system for a spray belt device, comprising a cooling cavity disposed within a copper roller, a dynamic sealing connection device, and a hollow shaft, wherein the hollow shaft is respectively connected to the cooling cavity of the copper roller and the dynamic sealing connection device, and the hollow shaft is fixedly connected to the copper roller, characterized in that... The dynamic sealing connection device is mounted on the sliding frame, and the hollow shaft is mounted on the sliding frame via a bearing device; The dynamic sealing connection device is connected to the cooling water source circuit through a telescopic sealing coupling device; the dynamic sealing connection device includes a connecting sleeve and a stationary ring disposed in the inner cavity of the connecting sleeve; The spraying device includes a frame, a copper roller mounted on the frame, a copper roller polishing device, a copper roller dynamic water cooling system, and a medium-frequency induction heating furnace and its nozzles fixed to the frame. The frame is connected to a cantilever via a column at one end, and the medium-frequency induction heating furnace is mounted on the cantilever. The cantilever is equipped with an automatic split-and-joint support device. The automatic split-and-joint support device includes a transverse telescopic driver, a guide sleeve, and a cone tip connecting positioning shaft connected between the telescopic driver and the cone connecting sleeve at the free end of the cantilever via the guide sleeve. When the medium-frequency induction heating furnace is under load, the telescopic driver is controlled by a corresponding controller to extend the cone tip connecting positioning shaft and engage with the corresponding cone connecting sleeve to position and reinforce the cantilever. The nozzle at the lower end of the medium-frequency induction heating furnace, corresponding to the position of the copper roller, is fixedly connected to a hollow shaft. The hollow shaft is mounted on a sliding frame via a bearing. The medium-frequency induction heating furnace and the nozzle are mounted on the cantilever of the frame. The sliding frame is mounted on the frame via a track device. A piston cylinder or a servo-driven electric telescopic rod connects the sliding frame to the frame. The sliding frame can move back and forth along the axial direction of the copper roller relative to the nozzle on the medium-frequency induction heating furnace via the track device.

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