Welding filler metal thin strip rolling device

Abstract

The utility model provides a kind of welding filler metal thin strip rolling device, realize the cooling of automatic thin strip thickness measurement and roll.The roll mechanism includes two rolls arranged up and down, and the two rolls are upper roll and lower roll;Main shaft sleeve is fixedly sleeved in the middle part of main shaft, and roll mold is fixedly sleeved on main shaft sleeve;The middle surface of main shaft is provided with cooling water tank, and water inlet hole and backwater hole are provided at the both ends of cooling water tank, and annular water tank is provided in the middle of cooling water tank;Main shaft sleeve covers cooling water tank;The inside of main shaft is provided with backwater chamber and water inlet chamber, and backwater chamber is communicated with backwater hole, and water inlet chamber is communicated with water inlet hole;The roll further includes swivel joint, and swivel joint is installed at one end of main shaft, and water inlet path and backwater path are provided on swivel joint, and water inlet path is communicated with water inlet chamber, and backwater path is communicated with backwater chamber;Thickness measurement mechanism is arranged at the one side of roll mechanism outlet, and it includes support and laser thickness gauge, and laser thickness gauge is installed on support.

Description

Technical Field

[0001] This utility model relates to a welding brazing filler metal strip rolling device. Background Technology

[0002] The current principle of welding brazing filler metal strip rolling is as follows: During the rolling process, when the metal sheet (including sheet, strip, and wire) enters a pair of rolls, the upper roll's downward pressure is controlled by a servo motor of the lifting mechanism. Simultaneously, the upper and lower rolls rotate in opposite directions, rolling the metal sheet into a thin strip. Then, the strip thickness is manually measured using a micrometer. If the finished thickness is not met or is inconsistent, the downward pressure of the two servo motors on the upper roll is adjusted repeatedly to correct the issue until the strip reaches the required thickness.

[0003] The existing technology has the following drawbacks: 1. Although the upper roll adjusts the pressure by a servo motor, the thickness of the strip needs to be measured manually after rolling during the debugging stage, and then the pressure needs to be adjusted manually. Secondly, during normal operation, the thickness of the strip after rolling may fluctuate slightly due to certain factors such as changes in the current environment, and the operator cannot make adjustments immediately. 2. Cooling systems are rarely seen in rolling mill rolls on the market. Therefore, when the equipment runs for a long time and the rolling mill rolls get heated, thermal expansion and contraction will occur, which will affect the final thickness of the rolled product. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned deficiencies in the existing technology and to provide a welding brazing filler strip rolling device with a reasonable structural design, so as to realize automated thin strip thickness measurement and roll cooling.

[0005] The technical solution adopted by this utility model to solve the above problems is: a welding brazing filler metal strip rolling device, including a rolling mechanism, the rolling mechanism including a roll mechanism, the roll mechanism including two rolls arranged vertically, the two rolls being an upper roll and a lower roll; the rolls include a main shaft, a main shaft sleeve and a rolling die, the main shaft sleeve being fixedly fitted on the middle of the main shaft, and the rolling die being fixedly fitted on the main shaft sleeve; the feature is that: a cooling water tank is provided on the middle surface of the main shaft, and water inlet holes and water return holes are provided at both ends of the cooling water tank, and a cooling water tank is provided in the middle. The roll is equipped with an annular water tank; the main shaft sleeve covers the cooling water tank; the main shaft has a return water chamber and a water inlet chamber, the return water chamber is connected to the return water hole, and the water inlet chamber is connected to the water inlet hole; the roll also includes a rotary joint, which is installed at one end of the main shaft, and the rotary joint is provided with a water inlet path and a water return path, the water inlet path is connected to the water inlet chamber, and the water return path is connected to the return water chamber; it also includes a thickness measuring mechanism, which is set on the outlet side of the roll mechanism, and includes a bracket and a laser thickness gauge, the laser thickness gauge being installed on the bracket.

[0006] This invention features a pressure sensor installed on the upper roller.

[0007] The spindle of this invention has a stepped hole inside, which has three steps. The first step is located at one end of the spindle, and the rotary joint is installed on the first step. The second step serves as a return water chamber, and the third step serves as a water inlet chamber.

[0008] The rotary joint described in this invention is inserted into the second-level step and is fitted with the second-level step with a gap; the return water path is connected to the gap between the rotary joint and the second-level step.

[0009] The thickness measuring mechanism described in this utility model also includes a guide wheel assembly, which is mounted on a bracket and located between the laser thickness gauge and the roll mechanism.

[0010] The rolling mechanism described in this utility model also includes a power source and a transfer box. The transfer box is connected to the power source, and the two rolls are connected to the transfer box.

[0011] The rolling mechanism described in this utility model also includes a lifting mechanism, which is connected to the upper rolling roll.

[0012] The rolling mechanism described in this utility model also includes a frame, and the rolling mechanism is installed on the frame.

[0013] Compared with the prior art, this utility model has the following advantages and effects: 1. By using a thickness measuring mechanism, the reliance on human technical skills for product quality is reduced, and automated thickness measurement is achieved; 2. Optimize the mechanical structure of the rolls and install a cooling system to improve the stability of the rolls. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the rolling mechanism in an embodiment of the present invention.

[0015] Figure 2 This is a cross-sectional structural diagram of the roll in an embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the main shaft structure in an embodiment of the present invention.

[0017] Figure 4 This is a cross-sectional structural diagram of the main shaft in an embodiment of the present invention.

[0018] Figure 5 This is a cross-sectional structural diagram of the spindle and spindle assembly according to an embodiment of the present invention.

[0019] Figure 6 This is a schematic diagram of the structure of the rotary joint in an embodiment of the present invention.

[0020] Figure 7This is a schematic diagram of the thickness measuring mechanism according to an embodiment of the present invention. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0022] This utility model embodiment includes a rolling mechanism and a thickness measuring mechanism 3. The rolling mechanism includes a power source 1, a transfer box 2, a roll mechanism 5, a frame 4, and a lifting mechanism 6.

[0023] Power source 1 uses a high-power servo motor paired with a high-reduction-ratio worm gear reducer to provide sufficient torque for the entire set of rolls.

[0024] Transfer case 2 is connected to power source 1. Its internal gear meshing structure converts single rotational power into opposing rotational power at the same speed. Gear oil is added inside the case to effectively reduce heat generation and wear during operation. Power is transmitted to the upper and lower front rollers through a telescopic double-joint universal joint, which not only serves as a transmission mechanism but also ensures that the up and down movement of the upper roller is not affected within a certain range.

[0025] The archway frame 4 is made of 3Cr2NiMo material, which has the advantages of high strength, high wear resistance and good thermal stability.

[0026] The roll mechanism 5 is installed on the archway frame 4. It includes two rolls arranged vertically, namely the upper roll and the lower roll, and the two rolls are connected to the transfer box 2.

[0027] The lifting mechanism 6 is connected to the upper roller. It obtains high torque through a servo motor and planetary reducer, and controls the forward and reverse rotation of the lead screw via a sliding coupling, thus enabling the lifting mechanism 6 to move up and down relative to the frame 4. A synchronous pull rod connects to the upper roller, controlling its vertical movement. This mechanism is controlled by two servo motors, allowing for axial thickness adjustment of the thin strip. The upper roller is pressed down by the lifting mechanism 6 to change the strip thickness. Because the strip is relatively thin, for example, when the product's strip thickness is between 0.10-0.30mm, there is a risk of breaking the strip, potentially damaging the main shaft. Therefore, a pressure sensor is installed on the upper roller. If the pressure exceeds the set range during the pressing process, the pressing is forcibly stopped, thus avoiding the aforementioned problem.

[0028] The rolling mill includes a main shaft 51, a main shaft sleeve 52, a rolling die 53, and a rotary joint 54.

[0029] The two ends of the main shaft 51 are rotatably mounted on the bearing housings on the archway frame 4.

[0030] The spindle sleeve 52 is fixedly fitted in the middle of the spindle 51, and the rolling die 53 is fixedly fitted on the spindle sleeve 52.

[0031] Multiple cooling water grooves 511 are milled out on the middle surface of the spindle 51. Through holes of equal size are drilled at both ends of the cooling water grooves 511 to form water inlet holes 512 and water return holes 514. A ring-shaped water groove 513 is also machined in the middle of the cooling water grooves 511.

[0032] A stepped hole 515 is machined inside the spindle 51. The stepped hole 515 has three steps. The first step is located at one end of the spindle 51 and is used to install the rotary joint 54. The second step serves as a return water chamber, and the third step serves as a water inlet chamber. The return water chamber is connected to the return water hole 514, and the water inlet chamber is connected to the water inlet hole 512.

[0033] After the spindle water channel is machined, it is heat-fitted and welded to the spindle sleeve 52 to form a whole. The spindle sleeve 52 covers the cooling water tank 511.

[0034] The rotary joint 54 is a standard part, installed on the first step of the stepped hole 515, and inserted into the second step with a clearance fit. The rotary joint 54 is provided with an inlet water passage 541 and a return water passage 542. The inlet water passage 541 communicates with the inlet chamber, and the return water passage 542 communicates with the gap between the rotary joint 54 and the second step. The main shaft 51 is connected to an external water pipe through the rotary joint 54. When the main shaft 51 rotates, the rotary joint 54 prevents the external water pipe from rotating.

[0035] Roll water cooling circulation description: During the operation of the main shaft 51, the rolling die 53 generates heat during rolling; cooling water enters the water inlet chamber inside the main shaft through the water inlet passage 541 of the rotary joint, and then flows through the water inlet hole 512. After carrying away the heat, the cooling water flows into the cooling water tank 511 and the annular water tank 513 on the surface of the main shaft through the return water hole 514 and then flows out from the return water passage 542 of the rotary joint 54 through the gap between the rotary joint 54 and the second step.

[0036] The thickness measuring mechanism 3 is located on the exit side of the roll mechanism 5, and includes a bracket 31, a laser thickness gauge 32, and a guide wheel assembly 33. Both the laser thickness gauge 32 and the guide wheel assembly 33 are mounted on the bracket 31.

[0037] The working process of this utility model is as follows: After being heated at the front end, the filament enters the rolling mechanism 5 through the filament guiding mechanism. Power source 1 starts, transmitting power through the transfer case 2 to output opposing rotational power. This power, via a telescopic universal joint, causes the upper and lower rolling rolls of the rolling mechanism 5 to rotate, rolling the filament and pulling it forward. The resulting thin strip passes through guide roller group 33, which stabilizes the strip and reduces fluctuations in diameter measurement data. The strip thickness is then measured by a laser thickness gauge 32. The back-end PLC and other control systems calibrate the test data against set values ​​to control the downward pressure of the lifting mechanism 6, automatically adjusting the strip thickness to obtain a qualified thickness thin strip.

[0038] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their components. The above description is merely illustrative of the structure of this utility model. All equivalent or simple variations made based on the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, all of which should fall within the protection scope of this utility model.

Claims

1. A welding filler metal strip rolling apparatus, comprising a rolling mechanism, the rolling mechanism including a roll mechanism, the roll mechanism including two rolls arranged vertically, the two rolls being an upper roll and a lower roll; the rolls comprising a main shaft, a main shaft sleeve, and a rolling die, the main shaft sleeve being fixedly fitted onto the middle of the main shaft, and the rolling die being fixedly fitted onto the main shaft sleeve; characterized in that: A cooling water tank is provided on the middle surface of the main shaft, with inlet and outlet water holes at both ends. An annular water tank is provided in the middle of the cooling water tank. The main shaft sleeve covers the cooling water tank. The main shaft has an outlet water chamber and an inlet water chamber inside, with the outlet water chamber communicating with the outlet water hole and the inlet water chamber communicating with the inlet water hole. The roll also includes a rotary joint, which is installed at one end of the main shaft. The rotary joint has an inlet water path and an outlet water path, with the inlet water path communicating with the inlet water chamber and the outlet water path communicating with the outlet water chamber. It also includes a thickness measuring mechanism, which is located on the outlet side of the roll mechanism. It includes a bracket and a laser thickness gauge, with the laser thickness gauge installed on the bracket.

2. The welding filler metal strip rolling apparatus according to claim 1, characterized in that: A pressure sensor is installed on the upper roll.

3. The welding filler metal strip rolling apparatus according to claim 1, characterized in that: The spindle has a stepped hole inside, which has three steps. The first step is located at one end of the spindle, and the rotary joint is installed on the first step. The second step serves as a return water chamber, and the third step serves as a water inlet chamber.

4. The welding filler metal strip rolling apparatus according to claim 3, characterized in that: The rotary joint is inserted into the second-level step and is fitted with the second-level step with a gap; the return water path is connected to the gap between the rotary joint and the second-level step.

5. The welding filler metal strip rolling apparatus according to claim 1, characterized in that: The thickness measuring mechanism also includes a guide wheel assembly, which is mounted on a bracket and located between the laser thickness gauge and the roll mechanism.

6. The welding filler metal strip rolling apparatus according to claim 1, characterized in that: The rolling mechanism also includes a power source and a transfer case, with the transfer case connected to the power source and the two rolls connected to the transfer case.

7. The welding filler metal strip rolling apparatus according to claim 1, characterized in that: The rolling mechanism also includes a lifting mechanism, which is connected to the upper roll.

8. The welding filler metal strip rolling apparatus according to claim 1, characterized in that: The rolling mechanism also includes a frame, on which the rolling mechanism is mounted.

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