A special ingot end face lubricating device and a lubricating method

Abstract

The application discloses a special large ingot end face lubricating device and a lubricating method, which comprise a roller way and an end spraying device; a limit switch is arranged on a roller at the front end of the roller way; a gas cylinder is arranged on a support above the limit switch; a spray head is hung in front of the first limit sensor through the gas cylinder, and the spray head reciprocally moves up and down under the action of the gas cylinder and moves upward when moving downward to the middle of the ingot end face under the action of a height limiter on the spray head; the limit switch and the end spraying device are used in cooperation to automatically smear the lubricant on the ingot end face, and the problems of manual smearing, increased labor intensity and hidden safety hazards in the prior art are solved.

Description

Technical fields:

[0001] This invention relates to the field of extrusion technology, and in particular to a special lubrication device and lubrication method for the end face of large ingots. Background technology:

[0002] In the field of aluminum extrusion, with the rapid development of my country's aluminum processing industry, customers have increasingly stringent requirements for aluminum processed products, leading to greater difficulty in producing aluminum alloy extruded materials and higher demands for personalized performance. Due to the complex cross-sections and high performance requirements during extrusion production, the number of scrap products increases, and the yield rate decreases. Defects such as uneven product surfaces, peeling, and bubbles on the inner surface or inside the product contribute to the high scrap volume during production. Long-term research and observation have revealed that during aluminum extrusion production, cylindrical aluminum rods need to be preheated to approximately 450-500℃ before being extruded through a steel die using an extrusion pad. Since aluminum adheres to steel at temperatures exceeding 450℃, the most common problem in the extrusion process is the ingot sticking to the extrusion pad, which in turn seals the extrusion cylinder. This adhesion between the aluminum ingot and the extrusion pad causes blistering and unevenness on the product cross-section, resulting in scrap. Therefore, the extrusion pad must be quickly separated from the ingot at the end of each extrusion cycle. Therefore, boron nitride, a release lubricant, needs to be applied to the extrusion pad or the end of the aluminum ingot to facilitate separation.

[0003] The applicant currently uses a manual application method to apply lubricant to the extrusion pad or the end of the aluminum ingot. However, this method increases the labor intensity of personnel. In addition, the application station is close to the extrusion die, and the extrusion die is also hot, posing a safety hazard when applying lubricant. Summary of the Invention:

[0004] The technical problem to be solved by the present invention is to achieve automatic application of lubricant to the end face of ingots by using limit switches and end spraying devices in combination, thereby solving the problems of manual application in the prior art, which increases the labor intensity of personnel and poses safety hazards.

[0005] To solve the above-mentioned technical problems, the present invention provides a technical solution: a special large ingot end face lubrication device, including a roller conveyor and an end spraying device. The roller conveyor includes a support, rollers, and a motor. At least two rollers are arranged in parallel rotation on the conveying support and are linked with the motor through a transmission device to support and convey the ingot placed on the rollers. The end spraying device includes a nozzle, a pipe, and a lubricant container. The nozzle is connected to the lubricant container through the pipe, so that the lubricant in the lubricant container is sprayed out from the nozzle. The feature is that a limit switch electrically connected to a controller is provided on one of the rollers at the advancing end of the roller conveyor. A cylinder is provided on the support above the limit switch. The nozzle is suspended in front of the first limit sensor by the cylinder, and the nozzle moves up and down reciprocally under the action of the cylinder. Under the action of the height limiter on the nozzle, the nozzle moves upward when it moves downward to the middle of the ingot end face.

[0006] Furthermore, the height limiter includes a limit switch, a connecting rod, and an adjusting rod. The connecting rod is vertical and its bottom is connected to the contact of the limit switch. The adjusting rod is horizontal and one end is connected to the top of the connecting rod.

[0007] Furthermore, the adjusting rod is in a horizontal position with one end slidably sleeved on the connecting rod and fixed by screws.

[0008] Furthermore, the nozzle is fixedly connected to the telescopic rod of the cylinder via a mounting bracket. The mounting bracket is also equipped with a press valve for controlling the connection between the nozzle and the pipeline, and the press valve is connected to the bottom of the connecting rod.

[0009] Furthermore, there are at least two nozzles.

[0010] To solve the above-mentioned technical problems, another technical solution provided by the present invention is: a special large ingot end face lubrication method according to the above-mentioned lubrication device, the steps of which are: the...

[0011] Step 1: The motor drives the roller to rotate through the transmission device, thereby pushing the ingot placed on the roller forward;

[0012] Step 2: When the ingot moves to the limit switch, the motor is powered off and enters the motor delay state through the limit switch, the roller stops rotating, and the ingot stops moving.

[0013] Step 3: The cylinder drives the nozzle and height limiter to move downwards. When the nozzle moves to the center of the ingot end face, the height limiter controls the cylinder to stop moving downwards and enters the cylinder delay state. The height limiter also controls the lubricant to be sprayed from the nozzle, completing the lubricant spraying operation.

[0014] Step 4: After the cylinder delay ends, the cylinder drives the nozzle and height limiter to reset. The height limiter controls the lubricant to stop spraying from the nozzle. After the cylinder resets, the motor delay ends, the motor resumes power supply and drives the drum to rotate, pushing the ingot forward and transporting the casting rod to the extrusion press.

[0015] Furthermore, in step two, the process of powering off the motor and entering the motor delay state is as follows: after the limit switch detects the ingot, it sends an electrical signal to the controller. The controller controls the motor to power off and enter the motor delay state through a relay based on the electrical signal sent by the limit switch.

[0016] Furthermore, in step three, the process of the cylinder stopping its downward movement and entering the cylinder delay state is as follows: when the adjusting rod contacts the ingot during its downward movement, an upward pulling force is generated on the connecting rod due to the limiting effect of the ingot on the adjusting rod. The connecting rod is connected to the contact of the limit switch, and the upward pulling force causes the connecting rod to move upward, triggering the contact of the limit switch. The limit switch sends an electrical signal to the controller, and the controller controls the cylinder to stop its downward movement and enter the cylinder delay state through a relay based on the electrical signal sent by the limit switch.

[0017] Furthermore, in step three, the process of the height limiter controlling the lubricant to spray from the nozzle is as follows: the connecting rod is linked with the pressing valve, and the upward pulling force causes the connecting rod to move upward and press the pressing valve, so that the pressing valve is open to facilitate the lubricant to enter the nozzle.

[0018] Furthermore, in step four, the process of the cylinder driving the nozzle and height limiter to reset is as follows: the cylinder drives the nozzle and height limiter to move upward, releasing the ingot's limitation on the adjusting rod and automatically canceling the upward pulling force of the connecting rod. The contacts of the limit switch and the pressing valve automatically reset under their own elastic force, and drive the connecting rod and adjusting rod to move downward together to reset.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. This application achieves automatic application of lubricant to the end face of ingots by using limit switches and end spraying devices in combination, which solves the problems of manual application in the prior art, which increases the labor intensity of personnel and poses safety hazards. The structure is simple, easy to install and disassemble, and can be added without changing the original production line layout, making it highly feasible.

[0021] 2. In this application, the limit switch is set on a roller near the end of the extrusion die on the roller conveyor. When the roller conveyor detects that the ingot is being transported, the motor stops working, causing the roller conveyor to stop and delay for a period of time. The cylinder drives the nozzle to move downward. When the nozzle moves downward to the middle of the ingot end face, it stops moving and sprays lubricant onto the ingot end face. Then it moves upward to reset. After the delay ends, the roller conveyor restarts and transports the ingot to the extrusion machine, thereby realizing automatic application of lubricant. It is simple to manufacture and easy to operate.

[0022] 3. In this application, the ingot is stopped from moving before the lubricant is sprayed, so that the ingot is in a stable state, ensuring the uniformity of the lubricant spraying. After the cylinder drives the nozzle to reset, the movement resumes to prevent collision with the nozzle and damage to the equipment. At the same time, the presence of the height limiter ensures that the nozzle stops moving and sprays the lubricant when it is in the middle of the ingot end face, ensuring the uniformity of the spraying.

[0023] 4. In this application, the height limiter is electrically connected to the controller to control the extension and retraction of the cylinder. Since the bottom of the connecting rod is connected to the contact of the limit switch, one end of the horizontal adjusting rod is sleeved on the connecting rod. When the cylinder drives the nozzle and the height limiter to move downward, the travel path of the horizontal adjusting rod will be blocked by the ingot. When the adjusting rod contacts the ingot, it will trigger the contact of the limit switch, thereby stopping the cylinder from moving downward. After stopping and delaying for a period of time, it will reset, thus allowing time for the lubricant to be sprayed.

[0024] 5. In this application, the adjusting rod and the connecting rod are slidably connected and fixed by screws, thereby adjusting the height of the adjusting rod. It can be adjusted according to different casting rod diameters, so that the spraying position at the end of the casting rod can be controlled to meet the needs of different rod diameters.

[0025] 6. In this application, the nozzle and the pressing valve are fixed to the telescopic rod of the cylinder by the mounting bracket, and the nozzle is connected to the pipeline through the pressing valve. The pressing valve controls the lubricant in the lubricant container to be sprayed out from the nozzle. Since the pressing valve is connected to the bottom of the connecting rod, and due to the limiting of the adjusting rod and the casting rod, the connecting rod generates tension, thereby triggering the contacts of the limit switch and the pressing valve. The entire stroke is linked to complete the precise spraying operation of the lubricant.

[0026] 7. The spray nozzles described in this application are at least two. When the valve is opened, the lubricant can be sprayed from multiple nozzles simultaneously, ensuring the uniformity of the coating and improving the coating quality.

[0027] To make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached image description:

[0028] To more clearly illustrate the technical solutions in this invention or the prior art, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only four of the drawings in this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of this application.

[0030] Figure 2 This is a structural diagram of the cylinder and mounting bracket.

[0031] Figure 3 This is a schematic diagram of the height limiter.

[0032] Figure 4 for Figure 3 The left view.

[0033] In the diagram, 1-bracket, 2-roller, 3-nozzle, 4-limit switch, 5-cylinder, 6-height limiter, 7-mounting bracket, 8-press valve; 61-limit switch, 62-connecting rod, 63-adjusting rod, 64-screw; A-ingot. Detailed implementation method:

[0034] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the invention. It should be understood that the accompanying drawings and embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the invention.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] The names of the messages or information exchanged between the multiple devices in the embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0037] Example 1

[0038] like Figure 1-3 As shown, a dedicated lubrication device for the end face of a large ingot is disclosed, including a roller conveyor and an end spraying device. The roller conveyor includes a support 1, rollers 2, and a motor. At least two rollers are arranged parallel to each other and rotate on the conveying support 1, and are linked to the motor through a transmission device to support and convey the ingot A placed on the rollers 2. The end spraying device includes a nozzle 3, a pipe, and a lubricant container. The nozzle 3 is connected to the lubricant container through the pipe, so that the lubricant in the lubricant container is sprayed out from the nozzle 3. A limit switch 4 electrically connected to a controller is provided on one of the rollers 2 at the advancing end of the roller conveyor. A cylinder 5 is provided on the support 1 above the limit switch 4. The nozzle 3 is suspended in front of the limit switch 4 by the cylinder 5, and the nozzle 3 moves up and down reciprocally under the action of the cylinder 5. Under the action of the height limiter 6 on the nozzle 3, the nozzle 3 moves upward when it moves downward to the middle of the end face of the ingot A. Position switch 4 is installed on a roller 2 near the extrusion die end on the roller conveyor. When the roller conveyor detects that ingot A is being transported, the motor stops working, causing the roller conveyor to stop and delay for a period of time. Cylinder 5 drives nozzle 3 to move downward. When nozzle 3 moves downward to the middle of the end face of ingot A, it stops moving and sprays lubricant onto the end face of ingot A. Then it moves upward to reset. After the delay ends, the roller conveyor restarts and transports the ingot to the extrusion press, thus realizing automatic application of lubricant. It is simple to make and easy to operate. Before the lubricant is sprayed, ingot A is stopped to keep it in a stable state, ensuring the uniformity of lubricant spraying. After the cylinder 5 drives nozzle 3 to reset, it resumes movement to prevent collision with nozzle 3 and damage to the equipment. At the same time, the presence of height limiter 6 ensures that nozzle 3 stops moving and sprays lubricant when it is in the middle of the end face of ingot A, ensuring the uniformity of spraying.

[0039] The height limiter 6 includes a limit switch 61, a connecting rod 62, and an adjusting rod 63. The connecting rod 62 is vertical and its bottom is connected to the contact of the limit switch 61. The adjusting rod 63 is horizontal and one end is connected to the top of the connecting rod 62. The height limiter 6 is electrically connected to the controller and controls the extension and retraction of the cylinder 5. Since the bottom of the connecting rod 62 is connected to the contact of the limit switch 61, one end of the horizontal adjusting rod 63 is sleeved on the connecting rod 62. When the cylinder 5 drives the nozzle 3 and the height limiter 6 to move downward, the path of the horizontal adjusting rod 63 will be blocked by the ingot A. When the adjusting rod 63 contacts the ingot A, it will trigger the contact of the limit switch 61, thereby stopping the cylinder 5 from moving downward. After stopping and resetting after a delay, time is reserved for the spraying of lubricant.

[0040] Example 2

[0041] like Figure 1-3As shown, this embodiment is obtained by further describing the technical features of the adjusting rod 63 and the connecting rod 62 based on the first embodiment. The remaining technical features are the same as those in the first embodiment, and the similarities will not be repeated here. The difference between this embodiment and the first embodiment is that the adjusting rod 63 is in a horizontal state and one end is slidably sleeved on the connecting rod 62 and fixed by the screw 64.

[0042] In this embodiment, the adjusting rod 63 is slidably connected to the connecting rod 62 and fixed by the screw 64, thereby adjusting the height of the adjusting rod 63. It can be adjusted according to different casting rod diameters, so that the spraying position at the end of the ingot A can be controlled to meet the needs of different rod diameters.

[0043] Example 3

[0044] like Figure 1 and 3 As shown in Figure 4, this embodiment is obtained by adding technical features such as the press valve 8 on the basis of embodiment 2. The other technical features are the same as those in embodiment 2. The similarities will not be repeated here. The difference between this embodiment and embodiment 2 is that the nozzle 3 is fixedly connected to the telescopic rod of the cylinder 5 through the mounting bracket 7. The mounting bracket 7 is also provided with a press valve 8 to control the connection between the nozzle 3 and the pipeline, and the press valve 8 is connected to the bottom of the connecting rod 62.

[0045] In this embodiment, the nozzle 3 and the pressing valve 8 are fixed to the telescopic rod of the cylinder 5 by the mounting bracket 7, and the nozzle 3 is connected to the pipeline through the pressing valve 8. The pressing valve 8 controls the lubricant in the lubricant container to be sprayed out from the nozzle 3. Since the pressing valve 8 is connected to the bottom of the connecting rod 62 (the connecting rod 62 passes through the through hole on the mounting bracket 7 and is connected to the pressing valve 8, and the connecting rod 62 is hinged to the contact of the limit switch 61), the limiting of the adjusting rod 63 and the casting rod causes the connecting rod 62 to generate tension, thereby triggering the contact of the limit switch 61 and the pressing valve 8. The entire stroke is linked to complete the precise spraying operation of the lubricant. The connecting rod 62 is limited by the through hole on the mounting bracket 7, so that the connecting rod 62 can move up and down along its axis, which facilitates pressing the pressing valve 8.

[0046] Example 4

[0047] like Figure 1 and 3 As shown in Figure 4, this embodiment is obtained by further describing the technical features of the nozzle 3 based on the third embodiment. The remaining technical features are the same as those in the third embodiment, and the similarities will not be repeated here. The difference between this embodiment and the third embodiment is that there are at least two nozzles 3.

[0048] In this embodiment, there are at least two nozzles 3. When the valve 8 is opened, the lubricant can be sprayed from multiple nozzles 3 at the same time, ensuring the uniformity of the coating and improving the coating quality.

[0049] Among them, the relay can be a time relay.

[0050] The process of using the overall technical solution formed by the above embodiments constitutes another technical solution disclosed in this application, which is: a special method for lubricating the end face of a large ingot, the steps of which are: the...

[0051] Step 1: The motor drives the roller 2 to rotate through the transmission device, thereby pushing the ingot A placed on the roller 2 forward;

[0052] Step 2: When ingot A moves to limit switch 4, the motor is powered off and enters the motor delay state through limit switch 4, roller 2 stops rotating, and ingot A stops moving.

[0053] Step 3: Cylinder 5 drives nozzle 3 and height limiter 6 to move downward. When nozzle 3 moves to the center position of the end face of ingot A, the height limiter 6 controls cylinder 5 to stop moving downward and enters cylinder 5 delay state. The height limiter 6 also controls lubricant to be sprayed from nozzle 3 to complete the lubricant spraying operation.

[0054] Step 4: After the delay state of cylinder 5 ends, cylinder 5 drives nozzle 3 and height limiter 6 to reset. The height limiter 6 controls the lubricant to stop spraying from nozzle 3. After cylinder 5 resets, the motor delay state ends, the motor resumes power supply and drives roller 2 to rotate, pushing ingot A to continue moving forward and transporting the casting rod to the extrusion press.

[0055] Furthermore, in step two, the process of powering off the motor and entering the motor delay state is as follows: after the limit switch 4 detects ingot A, it sends an electrical signal to the controller. The controller controls the motor to power off and enter the motor delay state through a relay based on the electrical signal sent by the limit switch 4.

[0056] Furthermore, in step three, the process of cylinder 5 stopping its downward movement and entering the cylinder 5 delay state is as follows: When the adjusting rod 63 moves downward and contacts the ingot A, due to the limiting effect of the ingot A on the adjusting rod 63, an upward pulling force is generated on the connecting rod 62. The connecting rod 62 is connected to the contact of the limit switch 61. The upward pulling force causes the connecting rod 62 to move upward and trigger the contact of the limit switch 61. The limit switch 61 sends an electrical signal to the controller. The controller controls the cylinder 5 to stop moving downward and enter the cylinder 5 delay state through a relay according to the electrical signal sent by the limit switch 61.

[0057] Furthermore, in step three, the process of the height limiter 6 controlling the lubricant to spray out from the nozzle 3 is as follows: the connecting rod 62 is linked with the pressing valve 8, and the upward pulling force causes the connecting rod 62 to move upward and press the pressing valve 8, so that the pressing valve 8 is open to facilitate the lubricant to enter the nozzle 3.

[0058] Furthermore, in step four, the process of cylinder 5 driving nozzle 3 and height limiter 6 to reset is as follows: cylinder 5 drives nozzle 3 and height limiter 6 to move upward, releasing the limit of ingot A on adjusting rod 63 and automatically removing the upward pulling force of connecting rod 62. The contacts of limit switch 61 and pressing valve 8 are automatically reset under their own elastic force, and drive connecting rod 62 and adjusting rod 63 to move downward together to reset.

[0059] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A dedicated lubrication device for the end face of large ingots, comprising a roller conveyor and an end spraying device, wherein the roller conveyor includes a support, rollers, and a motor, at least two rollers are arranged in parallel rotation on the conveying support and are linked to the motor through a transmission device to support and convey the ingot placed on the rollers, and the end spraying device includes a nozzle, a pipe, and a lubricant container, wherein the nozzle is connected to the lubricant container through the pipe, so that the lubricant in the lubricant container is sprayed out from the nozzle, characterized in that: A limit switch electrically connected to the controller is provided on one of the rollers at the advancing end of the roller conveyor. A cylinder is provided on the bracket above the limit switch. The nozzle is suspended in front of the limit switch by the cylinder. The nozzle moves up and down reciprocally under the action of the cylinder. When the nozzle moves down to the middle of the ingot end face under the action of the height limiter on the nozzle, it moves up. The height limiter includes a limit switch, a connecting rod, and an adjusting rod. The connecting rod is vertical and its bottom is connected to the contact of the limit switch. The adjusting rod is horizontal and one end is connected to the top of the connecting rod. The adjusting rod is in a horizontal position with one end slidably sleeved on the connecting rod and fixed by screws; The nozzle is fixedly connected to the telescopic rod of the cylinder via a mounting bracket. The mounting bracket is also equipped with a press valve that controls the connection between the nozzle and the pipeline, and the press valve is connected to the bottom of the connecting rod.

2. The special large ingot end face lubrication device according to claim 1, characterized in that: There are at least two nozzles.

3. A special lubrication method for the end face of a large ingot according to claim 2, comprising the following steps: Step 1: The motor drives the roller to rotate through the transmission device, thereby pushing the ingot placed on the roller forward; Step 2: When the ingot moves to the limit switch, the motor is powered off and enters the motor delay state through the limit switch, the roller stops rotating, and the ingot stops moving. Step 3: The cylinder drives the nozzle and height limiter to move downwards. When the nozzle moves to the center of the ingot end face, the height limiter controls the cylinder to stop moving downwards and enters the cylinder delay state. The height limiter also controls the lubricant to be sprayed from the nozzle, completing the lubricant spraying operation. Step 4: After the cylinder delay ends, the cylinder drives the nozzle and height limiter to reset. The height limiter controls the lubricant to stop spraying from the nozzle. After the cylinder resets, the motor delay ends, the motor resumes power supply and drives the roller to rotate, pushing the ingot forward and transporting the ingot to the extrusion press.

4. The method for lubricating the end face of a special large ingot according to claim 3, characterized in that: In step two, the process of powering off the motor and entering the motor delay state is as follows: after the limit switch detects the ingot, it sends an electrical signal to the controller. The controller controls the motor to power off and enter the motor delay state through a relay based on the electrical signal sent by the limit switch.

5. The method for lubricating the end face of a special large ingot according to claim 3, characterized in that: In step three, the process of the cylinder stopping its downward movement and entering the cylinder delay state is as follows: When the adjusting rod contacts the ingot during its downward movement, an upward pulling force is generated on the connecting rod due to the limiting effect of the ingot on the adjusting rod. The connecting rod is connected to the contact of the limit switch, and the upward pulling force causes the connecting rod to move upward, triggering the contact of the limit switch. The limit switch sends an electrical signal to the controller, and the controller controls the cylinder to stop its downward movement and enter the cylinder delay state through a relay based on the electrical signal sent by the limit switch.

6. The method for lubricating the end face of a special large ingot according to claim 3, characterized in that: In step three, the process of the height limiter controlling the lubricant to spray from the nozzle is as follows: the connecting rod is linked with the pressing valve, and the upward pulling force causes the connecting rod to move upward and press the pressing valve, so that the pressing valve is open to facilitate the lubricant to enter the nozzle.

7. The method for lubricating the end face of a special large ingot according to claim 3, characterized in that: In step four, the process of the cylinder driving the nozzle and height limiter to reset is as follows: the cylinder drives the nozzle and height limiter to move upward, releasing the ingot's limitation on the adjusting rod and automatically removing the upward pulling force of the connecting rod. The contacts of the limit switch and the pressing valve automatically reset under their own elastic force, and drive the connecting rod and adjusting rod to move downward together to reset.

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